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CN-116103593-B - Zinc plating method for double-thread screw rod and processing device thereof

CN116103593BCN 116103593 BCN116103593 BCN 116103593BCN-116103593-B

Abstract

The invention discloses a double-thread screw rod galvanization method and a double-thread screw rod galvanization device, wherein the double-thread screw rod treatment device comprises a feeding frame, a circulating frame and a sliding rail, and an intermittent material distributing mechanism comprises an interference part and a lifting part; the material rod carding mechanism comprises an opening part, a carding part and a releasing part, wherein the carding part comprises a carding component and a containing component, the carding component compresses the material rod bodies, the carding component moves downwards to separate the material rod bodies one by one, and the double-thread screw rod galvanizing method comprises the steps of galvanization pretreatment, hot dip galvanization and cooling. The invention has the advantages that the service life can be prolonged by 2-3 times by changing the zinc liquid components, the big bag can be automatically divided into small bags by the cooperation operation of the intermittent material distributing mechanism and the material rod circulating mechanism, a large amount of packing belts are omitted, the unpacking efficiency is improved, the labor output and the production cost are reduced, and the material rod body are automatically scattered by the action of the material rod carding mechanism.

Inventors

  • LIANG MINGKUN
  • ZHAO WEIWEI
  • LI JIANBO
  • Xiang Lianfu
  • Qiao Juntang
  • LI KEYI

Assignees

  • 河北天创新材料科技有限公司

Dates

Publication Date
20260505
Application Date
20230110

Claims (10)

  1. 1. The double-thread screw rod galvanization treatment device comprises a material rod body (1), an alkaline washing tank (2), a pickling tank (3), a feeding frame (4), a circulating frame (5) and a sliding rail (6), wherein the alkaline washing tank (2) and the pickling tank (3) are arranged in parallel, the alkaline washing tank (2) and the pickling tank (3) are positioned between the feeding frame (4) and the sliding rail (6), the circulating frame (5) is positioned above the alkaline washing tank (2) and the pickling tank (3), and the device is characterized in that an intermittent material distributing mechanism is arranged at the upper end of the feeding frame (4), a material rod circulating mechanism is arranged on the circulating frame (5), and a material rod carding mechanism is arranged on one side of the sliding rail (6); The intermittent material distributing mechanism comprises a steel bar sorting platform (7), a U-shaped buffer groove (8), an interference part (9) and a lifting part (10), wherein the steel bar sorting platform (7) is rotationally connected with a feeding frame (4), the steel bar sorting platform (7) uniformly spreads out a material rod body (1), the lifting part (10) moves reciprocally in the vertical direction, the lifting part (10) lifts the material rod body (1) and moves the material rod body into the U-shaped buffer groove (8), and the lifting part (10) moves the material rod body (1) from the U-shaped buffer groove (8) to the material rod circulating mechanism; The material rod circulating mechanism comprises a first bracket (11), a second bracket (12), a U-shaped block (13) and a limiting part (14), wherein the first bracket (11) is arranged between the alkaline washing tank (2) and the acid washing tank (3) and is arranged in the horizontal direction, the second bracket (12) is arranged in the alkaline washing tank (2) and the acid washing tank (3), the second bracket (12) is arranged in parallel, the second bracket (12) is arranged in the vertical direction, the first bracket (11), the second bracket (12) and the feeding frame (4) are arranged in two groups and are positioned at two sides of the acid washing tank (3), the side surfaces of the first bracket (11), the second bracket (12) and the circulating frame (5) are respectively provided with a plurality of chain wheels (15), one side of the chain wheels (15) is provided with a chain (16), the chain (16) at the position of the feeding frame (4) is distributed in an S shape, the chain (16) at the position of the alkaline washing tank (2) and the acid washing tank (3) is distributed in an S shape, and the U-shaped block (13) is arranged at one side of the chain (16) and is provided with a plurality of U-shaped blocks (13) for containing materials; the limiting part (14) is divided into two parts and is positioned at two sides of the opening of the U-shaped block (13), the limiting part (14) moves oppositely or moves back to back, the opening of the U-shaped block (13) is closed by opposite movement, the interference part (9) drives the limit part (14) to move, and the limit part (14) circularly moves along the distribution path of the chain (16); The carding mechanism comprises an opening part (17), a carding part (18) and a releasing part (19), wherein the opening part (17) moves in the vertical direction, the opening part (17) drives a limiting part (14) to move oppositely or move back to the opening part, the carding part (18) comprises a carding component and a containing component, the containing component is used for positioning the horizontal position of a material rod body (1), the carding component compresses the material rod body (1), the material rod body (1) is in horizontal arrangement, the carding component moves downwards to separate the material rod bodies (1) one by one, and the carding component moves in the axial direction of the material rod body (1); the release part (19) comprises a transfer component and a conveying mechanism (63), the transfer component adsorbs the material rod bodies (1) and moves the material rod bodies (1) from the holding component to the conveying mechanism (63), the transfer component releases the material rod bodies (1) one by one, and the conveying mechanism (63) enlarges the interval of the material rod bodies (1); the double-thread screw rod galvanization method is characterized by comprising the following steps of; Step one, pre-treatment of galvanization: 1) Unpacking the materials, namely, after verifying the specification and the size, unpacking the materials into small bags suitable for pretreatment; 2) Alkali washing, namely alkali washing a workpiece by using alkali washing liquid with the concentration of NaOH of 30-40g/L, wherein the alkali washing time is 5-20 minutes, the alkali washing temperature is 40-60 ℃, and the workpiece continuously rises and falls during alkali washing; 3) Washing the workpiece with alkali to remove surface saponified greasy dirt impurities and alkali washing liquid, and washing with water to fall off at least twice; 4) Pickling, namely immersing the deoiled workpiece into a pickling tank with the hydrochloric acid concentration of 5-23% to carry out rust removal treatment, wherein the pickling time is 5-12 minutes, and the workpiece continuously rises and falls during pickling; 5) Washing, namely, washing the surface of the workpiece with water with pH value of 3, pre-cleaning pickling solution and impurities on the surface of the workpiece, and washing the surface of the workpiece with water with pH value of more than 3 for at least two times; 6) Plating assistant, namely preparing ammonium chloride (140-260 g/L), zinc chloride (40-160 g/L) and plating assistant agent pH (4-5), fully soaking the workpiece in the plating assistant agent, lifting for at least 2 times, and forming a plating assistant film with uniform thickness on the surface of the workpiece, wherein the plating assistant temperature is 20-60 ℃; 7) Drying, namely feeding the plating-assisting workpiece in a material-dividing way, stacking the workpiece according to teeth, and driving the workpiece to enter a drying kang along with a chain for drying; step two, hot dip galvanization alloy and cooling: 1) The material distribution, namely a drying chain (16) rotates to drive a workpiece to move to a zinc pot, and 8-12 pieces of material are distributed to a pre-galvanizing platform in a traversing way by a material distribution assembly; 2) Taking materials, namely taking materials correspondingly by using 8-12 mechanical arms, after setting the corresponding taking positions, starting a galvanizing machine, and driving a mechanical arm motor to a pre-galvanizing platform to take materials; 3) The zinc plating step comprises the steps of taking materials by a mechanical arm, driving 8-12 pull bars to be placed at positions corresponding to a zinc alloy liquid 1 station material supporting frame, lifting the pull bars after the pull bars are placed stably by the mechanical arm, repeatedly taking and discharging materials to 2 stations, taking and discharging materials to 3 stations, and cleaning surface zinc oxide once every 20 minutes at the temperature of the zinc liquid between 440 and 475, wherein zinc alloy components comprise 99.974-99.9842%, 0.005-0.01% of nickel, 0.01-0.015% of aluminum and 0.0008-0.001% of rare earth; 4) And (3) blowing and wiping, namely moving the galvanizing manipulator to a corresponding station, taking materials from the zinc pot, lifting the galvanizing manipulator to a specified height, moving the galvanizing manipulator to a lead-out runway, and lifting the galvanized manipulator to repeat the procedures after ensuring that a workpiece contacts the runway, wherein the workpiece passes through 8-12 wind rings along with the lead-out runway: a. two runway rollers are magnetic rollers in front of the wind ring, so that the workpiece is ensured not to deviate from the position close to the wind ring and not to interfere with the wind ring; b. The first runway roller is a magnetic roller after the wind ring, so that the workpiece is ensured not to deviate after passing through the wind ring and is smoothly driven to the next working procedure along with the roller, the air flow pressure of the wind ring is 0.3-0.5Mpa, high-pressure air is provided by the air compressor, the air blowing angle of the wind ring is 60-80 degrees, and the full cleaning of the thread position on the brace is ensured; 5) After the zinc liquid is blown and smeared on the workpiece, the inductor starts to automatically turn over the material to the water tank for cooling along with the end of the runway, the chain of the cooling water tank rotates, and the cooled galvanized workpiece is taken out of the water tank to the material receiving frame; 6) Checking, namely checking the cleanliness of a zinc layer of the galvanized brace and a screw thread at a material receiving frame, and testing the quality of zinc plating at the screw thread by screwing a corresponding nut; 7) And packaging, namely moving the workpiece to a packaging frame for drying, and packaging the workpiece.
  2. 2. The double-ended screw rod galvanizing treatment device according to claim 1, wherein in the first step, the drying temperature of the drying kang is 30-50 ℃.
  3. 3. The double-ended screw rod galvanization processing apparatus according to claim 2, wherein in the second step, the cooling water temperature is 20-40 degrees.
  4. 4. The double-thread screw galvanization processing device according to claim 1, wherein the lifting part (10) comprises a first hydraulic rod (20) arranged at one end of the upper surface of the upper material frame (4), the lower end of the first hydraulic rod (20) is hinged with the upper material frame (4), the telescopic end of the first hydraulic rod (20) is hinged with one end of the steel bar sorting platform (7), the other end of the steel bar sorting platform (7) is hinged with the upper material frame (4), the two ends of the upper surface of the steel bar sorting platform (7) are provided with baffle plates (21), one side of the upper material frame (4) is provided with a second hydraulic rod (22), the telescopic end of the second hydraulic rod (22) is provided with a first trapezoid plate (23), the first trapezoid plate (23) and the steel bar sorting platform (7) are in a dislocation state, the U-shaped buffer tank (8) is arranged at one side of the upper material frame (4) close to the first trapezoid plate (23), one side of the upper material frame (4) is provided with a first F-shaped rod (24), one side of the F-shaped rod (24) is provided with a baffle plate (25), one side of the first trapezoid plate (25) is provided with a baffle plate (25), and a second trapezoid plate (25) is arranged between the two-stage material guide plates (25) and a second trapezoid mechanism (68) is arranged.
  5. 5. The double-thread screw galvanization processing device according to claim 4, wherein the interference part (9) comprises a second F-shaped rod (26) arranged at the telescopic end of the second hydraulic rod (22), and a second trapezoid plate (27) is arranged at the upper end of the second F-shaped rod (26).
  6. 6. The double-thread screw galvanization processing device according to claim 5, wherein the limiting part (14) comprises round through holes (28) formed in two sides of the U-shaped block (13), sliding shafts (29) are installed in the round through holes (28), limiting grooves (30) are formed in two sides of the round through holes (28), limiting blocks (31) which are in sliding connection with the limiting grooves (30) are installed on two sides of the sliding shafts (29), a first compression spring (32) is installed between the limiting blocks (31) and the limiting grooves (30), an inclined plane I (33) is arranged at one end of the sliding shafts (29), an interference shaft (35) is installed on the side surface of the sliding shaft (29), the interference shaft (35) is located at one end of the inclined plane II (34), the interference shaft (35) corresponds to the position of the trapezoid plate II, driving motors (36) are installed on the first bracket (11), the second bracket (12) and the circulating frame (5), rotating ends of the driving motors (36) are fixedly connected with the chain wheels (15), and the limiting part (14) corresponds to the position of the guide plate I (25).
  7. 7. The double-thread screw galvanization processing device according to claim 6, wherein the opening part (17) comprises a hydraulic rod III (37) arranged at the lower end of the circulating frame (5), the hydraulic rod III (37) stretches downwards, a 匚 -shaped rod (38) is arranged at the stretching end of the hydraulic rod III (37), a release plate (39) is arranged at the upper end of the 匚 -shaped rod (38), and the release plate (39) corresponds to the position of the interference shaft (35).
  8. 8. The double-thread screw galvanizing treatment device according to claim 7, wherein the containing component comprises a supporting block (40) arranged at one side of the circulating frame (5), the supporting block (40) is provided with three linear rows, sliding grooves (41) are arranged at two ends of the upper surface of the supporting block (40), sliding blocks (42) are arranged at one ends of the sliding grooves (41), inclined plates (43) are arranged on the upper surface of the sliding blocks (42), compression springs II (44) are arranged between the sliding blocks (42) and the sliding grooves (41), limiting parts (14) correspond to the positions of the supporting block (40), the carding component comprises a moving block (45) arranged at two ends of the sliding rail (6), the moving block (45) is in sliding connection with the sliding rail (6), a rotating motor (46) is arranged at one end of the sliding rail (6), threaded shafts (47) in threaded connection with the moving block (45) are arranged at the rotating ends, threads at two ends of the threaded shafts (47) are in opposite directions, a first hydraulic cylinder (48) is arranged on the upper surface of the moving block (45), a second hydraulic cylinder (48) is arranged in a horizontal direction, a second hydraulic cylinder (48) is arranged at the second hydraulic cylinder (50) and a third hydraulic cylinder (50) is arranged at the second hydraulic cylinder (50) and the third hydraulic cylinder (50) is arranged at the telescopic cylinder (50), the telescopic end of the hydraulic cylinder II (49) is provided with a pressing plate (51), the telescopic end of the hydraulic cylinder III (50) is provided with a connecting plate (52), the lower surface of the connecting plate (52) is provided with a separation comb (53), the profile of the separation comb (53) is conical, the separation comb (53) is composed of a plurality of vertical plates (54), the vertical plates (54) are arranged in a straight line, the vertical plates (54) are sequentially shortened from the center position to the two side positions, the lower end of each vertical plate (54) is provided with a contact head (55), and the contact heads (55) deviate from the axle center of the material rod body (1).
  9. 9. The double-thread screw galvanization processing device according to claim 8, wherein the transfer assembly comprises a vertical bearing (56) arranged on one side of a supporting block (40), a transmission shaft (57) is arranged on the inner ring of the vertical bearing (56), a swinging plate (58) is arranged at one end of the transmission shaft (57), the swinging height of the swinging plate (58) is higher than that of a sloping plate (43), a strong magnet (59) is arranged at one end of the swinging plate (58), a plurality of strong magnets (59) are arranged and correspond to the material rod body (1) one by one, a gear I (60) is arranged at the other end of the transmission shaft (57), a stepping motor (61) is arranged on one side of the supporting block (40), a gear II (62) meshed with the gear I (60) is arranged at the rotating end of the stepping motor (61), a transmission mechanism (63) is arranged on one side of the supporting block (40), a transmission belt (64) is arranged at the transmission end of the transmission mechanism (63), a V-shaped groove (65) is arranged on the outer surface of the transmission belt (64), and a baffle (66) is arranged on one side of the V-shaped groove (65).
  10. 10. A double-threaded screw galvanising treatment device according to any of the claims 1-9, characterized in that the circulation rack (5) is provided with a photoelectric switch (67).

Description

Zinc plating method for double-thread screw rod and processing device thereof Technical Field The invention relates to the technical field of surface corrosion prevention treatment of fasteners, in particular to a double-thread screw rod galvanization method and a treatment device thereof. Background The brace belongs to one kind of fastener, is commonly used on the steel construction, bears the horizontal load of steel construction top purlin, and the brace needs to be through unpacking, alkali wash, washing, pickling, washing, helping plating, stoving, divide the material, get the material, galvanize, blow and smear, process such as cooling when production: The existing market brace is basically a galvanization process or a paint spraying process, after 20 galvanized braces are formed into small bundles, the galvanized braces are centrifuged to remove redundant zinc liquid after being galvanized at high temperature, and the operation mode has the following defects that the surfaces of products are scratched or bumped in a large amount due to the centrifugal effect of the centrifugal force, meanwhile, more zinc slag and zinc stills are arranged at the thread, the qualification rate of the products is low, the use amount of zinc ingots is large, the energy consumption is high, the environmental pollution is serious, and the whole galvanization quality is influenced due to the darkening of the high-temperature galvanization layer; when the galvanization pretreatment is used for feeding, a large bundle of braces (about 100) is split into a plurality of small bags during field operation, so that the surface of the most brace with uniformity, rapidness and better quality is convenient to process; The zinc plating pretreatment blanking process comprises the steps of carrying out on-site disassembly on small bags, separating the braces to enable the braces to be dried and galvanized to have better effect in order to improve the zinc plating quality of the subsequent process, and because the braces have certain toughness, after long-distance transportation (a plurality of pickling tanks and alkaline washing tanks), the braces are easy to cross and catch, and the braces are needed to be separated manually at the moment, but the operation has the following defects that 1, the manual separation mode is low in efficiency and has certain potential safety hazards (the manual frequent running on a transmission chain has larger cold risk), and 2, the separation distance between the braces and the braces is not easy to control by manually moving the braces, so that the grabbing operation of a later zinc plating manipulator cannot be matched. Disclosure of Invention The invention provides a double-thread screw rod galvanization method and a processing device thereof, which solve the problems. In order to achieve the above purpose, the present invention adopts the following technical scheme: the double-thread screw rod galvanizing method and the processing device thereof, wherein the double-thread screw rod processing device comprises a material rod body, an alkaline washing tank, a pickling tank, a feeding frame, a circulating frame and a sliding rail, wherein the alkaline washing tank and the pickling tank are placed in parallel, the alkaline washing tank and the pickling tank are positioned between the feeding frame and the sliding rail, and the circulating frame is positioned above the alkaline washing tank and the pickling tank; The intermittent material distributing mechanism comprises a steel bar sorting platform, a U-shaped buffer groove, an interference part and a lifting part, wherein the steel bar sorting platform is in rotary connection with the feeding frame, the steel bar sorting platform uniformly spreads out a material rod body, the lifting part moves reciprocally in the vertical direction, the lifting part lifts the material rod body and moves the material rod body into the U-shaped buffer groove, and the lifting part moves the material rod body from the U-shaped buffer groove to the material rod circulating mechanism; The material rod circulation mechanism comprises a first bracket, a second bracket, a U-shaped block and a limiting part, wherein the first bracket is arranged between the alkaline washing tank and the acid washing tank and is arranged in the horizontal direction, the second bracket is arranged in the alkaline washing tank and the acid washing tank, the second bracket is arranged in two and is parallel to each other, the second bracket is arranged in the vertical direction, the first bracket, the second bracket and the feeding rack are provided with two groups and are positioned at two sides of the acid washing tank, the side surfaces of the first bracket, the second bracket and the circulating rack are respectively provided with a plurality of chain wheels, one side of the chain wheels is provided with a chain, the chains at the position of the feeding rack are distributed in a mouth shape, t