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CN-121973373-A - Rubber hose hard core removing machine and method

CN121973373ACN 121973373 ACN121973373 ACN 121973373ACN-121973373-A

Abstract

The invention relates to the technical field of hard core production of rubber hoses, in particular to a hard core removing machine and a hard core removing method of a rubber hose, comprising a bottom beam, wherein a vibrating part is arranged on the bottom beam, an adjusting part is further arranged on the bottom beam, a side beam is integrally connected with the bottom beam, a first driving part is arranged on the side beam, a second driving part is arranged on the first driving part, a guiding part is connected with the second driving part, the vibrating part comprises a chassis, the chassis is fixedly connected with one end of the bottom beam, an ultrasonic transducer, an amplitude transformer and a vibrating sleeve are arranged through the vibrating part, a micron-sized instantaneous gap is formed between a hard core die and an inner rubber of the rubber hose, the viscous bonding state of the hard core and the inner rubber is destroyed, the rigid contact friction between the hard core and the inner rubber is eliminated from the root, the technical problems of scratch and peeling of the inner wall of the rubber hose caused by the existing rigid tension removing mode are solved, and the nondestructive processing effect of the rubber hose removing process is realized.

Inventors

  • LI DA
  • DU ZONGBIN
  • XU JINGLIANG
  • ZHOU BAOHUA

Assignees

  • 卓凡液压科技有限公司

Dates

Publication Date
20260505
Application Date
20260311

Claims (10)

  1. 1. The rubber hose hard core stripper comprises a bottom beam (1), and is characterized in that a vibrating part (2) is arranged on the bottom beam (1), an adjusting part (3) is also arranged on the bottom beam (1), a side beam is integrally connected to the bottom beam (1), a first driving part (4) is arranged on the side beam, a second driving part (5) is arranged on the first driving part (4), a guiding part (6) is connected to the second driving part (5), the vibrating part (2) comprises a case (21), the case (21) is fixedly connected to one end of the bottom beam (1), an ultrasonic transducer (22) and an ultrasonic generator are arranged in the case (21), an amplitude transformer is arranged on the ultrasonic transducer (22), a positioning rod I (24) is movably penetrated outside the case (21) and is rotatably connected with a vibrating sleeve (23), the inner wall of the vibrating sleeve (23) is fixedly connected with a positioning rod I (24), a hard core die (25) is arranged on the positioning rod I (24), a hard core die (25) is fixedly connected to one end of the positioning rod (25), a hard core (25) is fixedly connected to one end of the positioning die (25), a hard core (25) is matched with one end of the positioning die (25), the end part of the hard core die (25) is inserted into the inner wall of the vibration sleeve (23).
  2. 2. The hard core stripper for rubber hose according to claim 1, wherein the adjusting part (3) comprises a bracket (31), the bracket (31) is fixedly connected to the bottom beam (1), the bracket (31) is fixedly connected with a damping sleeve (32), the bottom beam (1) is slidably connected with a sliding seat (33), the sliding seat (33) is rotatably connected with a main shaft (34), one end of the main shaft (34) is fixedly connected with a rotating rod (35), one end of the rotating rod (35) slidably penetrates through the bracket (31) and the damping sleeve (32) and extends towards the hard core die (25), a positioning rod II (36) matched with a positioning hole (26) is fixedly connected to the extending end of the rotating rod (35), and the positioning rod II (36) is inserted into the positioning hole (26) at the other end of the hard core die (25).
  3. 3. The hard core stripper for rubber hose according to claim 2, wherein the bottom of the sliding seat (33) is fixedly connected with a sliding block (37), the sliding block (37) is slidably connected between the inner walls of the bottom beams (1), the sliding block (37) is provided with a first hydraulic rod (38), the first hydraulic rod (38) is installed between the inner walls of the bottom beams (1), the end part of the inner rod of the first hydraulic rod (38) is fixedly connected with the sliding block (37), the bottom of the sliding seat (33) is provided with a sliding groove (39), and the other end of the bottom beams (1) is fixedly connected with a limiting arm (310) which is slidably matched with the sliding groove (39).
  4. 4. A rubber hose hard core stripper as defined in claim 3, wherein the first driving part (4) comprises a control box (41), a differential controller and a first motor (42) are installed in the control box (41), the control box (41) is fixedly connected to a side beam, an output shaft of the first motor (42) is fixedly connected with a first rotating shaft (43), the side wall of the bracket (31) is fixedly connected with a mounting plate (44), the mounting plate (44) is rotatably connected with a driving shaft (45), first pulleys are fixedly sleeved on the driving shaft (45) and the first rotating shaft (43), and a first driving belt (46) is connected between the first pulleys in a transmission manner.
  5. 5. A hard core stripper for rubber hose according to claim 4, wherein the driving shaft (45) is fixedly sleeved with a driving gear (47), the rotating rod (35) is fixedly sleeved with a sliding gear (48), the driving gear (47) is meshed with the sliding gear (48), and the sliding gear (48) is located between the bracket (31) and the main shaft (34).
  6. 6. The hard core stripper for rubber hose according to claim 5, wherein the guiding portion (6) comprises a bottom plate (61), a baffle (62) is fixedly connected to the bottom plate (61), two support plates (63) and two limiting blocks (64) are symmetrically arranged on the bottom plate (61), rocker arms (65) are hinged to the two support plates (63), driven shafts (66) are rotatably connected to the two rocker arms (65), rubber thread rollers (67) are fixedly connected between the driven shafts (66), and hydraulic rods (68) are hinged to the two rocker arms (65) and the baffle (62).
  7. 7. The hard core stripper for rubber hose according to claim 6, wherein the second driving part (5) comprises a second motor (51), the second motor (51) is installed in the control box (41), an output shaft of the second motor (51) is fixedly connected with a second rotating shaft (52), an end part of the second rotating shaft (52) is rotatably connected to a rocker arm (65) adjacent to the second rotating shaft, belt pulleys (53) are fixedly sleeved on the second rotating shaft (52) and a driven shaft (66) on the same side, and a transmission belt (54) is connected between the belt pulleys (53).
  8. 8. A hard core stripper for rubber hose according to claim 7, wherein the two rocker arms (65) are respectively abutted against two limiting blocks (64), and the rubber thread roller (67) is abutted against the rubber tube (27).
  9. 9. The hard core stripper for rubber hoses, as set forth in claim 7, characterized in that the center of the second rotating shaft (52) is aligned with the center of the hinge point of the rocker arm (65), the bottom beam (1) is provided with a processing table (7), the processing table (7) is fixedly connected with the bottom plate (61), and the bottoms of the bottom beam (1), the chassis (21), the bottom plate (61), the side beams and the processing table (7) are provided with supporting legs (8).
  10. 10. A method of core removal of a hard core of a rubber hose according to any one of claims 7 to 9, comprising the steps of: The ultrasonic transducer (22) transmits vibration to the vibration sleeve (23) through the amplitude transformer to promote the surface of the hard core mould (25) to generate high-frequency micro-amplitude vibration, and the vibration wave generates a micron-sized instantaneous gap between the hard core mould (25) and the inner rubber of the rubber tube (27); The motor I (42) and the motor II (51) generate different rotating speeds through a differential controller, the rotating shaft I (43) drives the driving shaft (45) to rotate through the driving belt I (46), the driving gear (47) is driven to drive the sliding gear (48) to rotate, the rotating rod (35) is driven to rotate, and the hard core die (25) synchronously rotates under the limiting action of the positioning rod I (24) and the positioning rod II (36); Step three, the second rotating shaft (52) drives the driven shaft (66) to rotate through the second driving belt (54), the rubber thread roller (67) is driven to rotate, the rubber tube (27) is driven to rotate through abutting friction force, and the second hydraulic rod (68) provides supporting force; And fourthly, the motor I (42) and the motor II (51) have rotational speed difference, and an instantaneous gap caused by vibration waves is matched, so that the rotational speed difference is formed between the rubber tube (27) and the hard core die (25), an axial component force is generated on the rubber tube (27) by the spiral surface of the rubber thread roller (67), the rubber tube (27) is caused to slowly and axially slide along the thread lead direction, and finally the rubber tube is separated from the hard core die (25) and falls on the extending end of the rotating rod (35).

Description

Rubber hose hard core removing machine and method Technical Field The invention relates to separation of metal and nonmetal parts, in particular to the technical field of hard core production of rubber hoses, and specifically relates to a hard core stripper and a core stripping method of a rubber hose. Background In the hard core method production process of the rubber hose, the hard core is used as a forming die for ensuring the inner diameter precision, roundness and inner wall smoothness of the rubber hose, and after the rubber hose is wound and vulcanized, the hard core is required to be separated from the hose, so that the finished product processing is completed. At present, the main stream of hard core removing modes in the industry takes 'rigid tension' as a core driving force, and the main stream of hard core removing modes comprises mechanical traction, hydraulic ejection, compressed air auxiliary traction and the like. In the prior art, the core principle of the rigid pulling force core-removing is that axial rigid acting force is applied by a traction mechanism or an ejection mechanism, so that the friction force between the hard core and the inner wall of the rubber hose is overcome, and the two are separated. Because the hard core and the inner rubber layer of the hose form certain adhesive bonding in the vulcanization process, and tiny processing lines or impurities exist on the surface of the hard core, under the action of rigid tension, the hard core and the inner wall of the hose generate strong rigid sliding friction, single axial rigid tension is easy to generate excessive tension to cause the hard core to be in intense friction with the inner wall and scratch the inner wall, or the tension is too small to cause the hard core to be blocked, the tension needs to be increased to be forced out, and the damage to the inner wall is further aggravated; The drag reduction measures in the prior art, such as hard core precoating lubricant, compressed air, water pressure and the like, are passive drag reduction, can not fundamentally eliminate the rigid contact between the hard core and the inner wall, have limited drag reduction effect, are influenced by the gap uniformity between the hard core and the inner wall, and exacerbate the problem of inner wall damage. Aiming at the problem of damage to the inner wall, the prior art improves the rigidity tension control precision, improves the lubricant performance, increases the auxiliary resistance reduction of compressed air and the like, and can only relieve the damage to a certain extent, so that the production requirements of high-pressure, precise and large-scale rubber hoses can not be met. Disclosure of Invention (One) solving the technical problems Aiming at the defects of the prior art, the invention provides a rubber hose hard core stripper and a core stripping method, which solve the problems of damage to the inner wall of a hose, low qualification rate of finished products and limited core stripping efficiency caused by depending on rigid tension in the existing core stripping technology. (II) technical scheme The rubber hose hard core removing machine comprises a bottom beam, wherein a vibrating part is arranged on the bottom beam, an adjusting part is further arranged on the bottom beam, a side beam is integrally connected to the bottom beam, a first driving part is arranged on the side beam, a second driving part is arranged on the first driving part, a guiding part is connected to the second driving part, the vibrating part comprises a machine case, the machine case is fixedly connected to one end of the bottom beam, an ultrasonic transducer and an ultrasonic generator are arranged in the machine case, an amplitude transformer is arranged on the ultrasonic transducer, the amplitude transformer movably penetrates through the outer portion of the machine case and is rotationally connected with a vibrating sleeve, a first positioning rod is fixedly connected to the center of the inner wall of the vibrating sleeve, a hard core die is arranged on the first positioning rod, positioning holes matched with the first positioning rod are formed in two ends of the hard core die, a rubber tube is arranged on the first positioning rod is inserted into one end positioning hole of the hard core die, and the end of the hard core die is inserted into the inner wall of the vibrating sleeve. Preferably, the adjusting part comprises a support, the support fixed connection is on the flounder, fixedly connected with damping sleeve on the support, sliding connection has the slide on the flounder, the slide internal rotation is connected with the main shaft, the one end fixedly connected with bull stick of main shaft, the one end slip of bull stick runs through support and damping sleeve and extends to hard core mould, fixedly connected with locating lever second that the locating hole matches on the extension of bull stick, the locating lever second is pegge