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CN-122007333-A - Sand mixing equipment for hardware casting processing

CN122007333ACN 122007333 ACN122007333 ACN 122007333ACN-122007333-A

Abstract

The invention discloses sand mixing equipment for casting and processing hardware, and relates to the technical field of casting equipment. The invention comprises a sand mixing tank body, wherein a fixed stirring mechanism is rotatably arranged at the bottom of the sand mixing tank body, a limiting mechanism is arranged at the top of the fixed stirring mechanism and used for limiting the rotation of the fixed stirring mechanism, and a rotary stirring mechanism is arranged in the fixed stirring mechanism. The invention realizes revolution of the fixed stirring mechanism and autorotation of the rotary stirring mechanism through a single driving source, forms a high-efficiency composite stirring flow field, thoroughly eliminates stirring dead angles and has high mixing uniformity, effectively prevents sand materials from adhering on the tank wall while stirring is realized through the combined design of the scraping plate and the fixed paddle, ensures effective mixing volume, ensures stable operation of a revolving transverse frame by a limiting mechanism, improves the overall stability and reliability of equipment, and realizes rapid, thorough and controllable discharge of the sand materials after mixing by a spiral discharging mechanism and improves operation continuity.

Inventors

  • ZHU DEHU

Assignees

  • 大丰市万成机械有限公司

Dates

Publication Date
20260512
Application Date
20260330

Claims (10)

  1. 1. The utility model provides a sand mixing equipment for hardware casting processing, its characterized in that, including the sand mixing jar body (1), fixed rabbling mechanism (4) are installed in the bottom rotation of the sand mixing jar body (1), and the top of fixed rabbling mechanism (4) is provided with stop gear (5) for it is spacing when rotatory to fixed rabbling mechanism (4), be provided with rotation type rabbling mechanism (6) in fixed rabbling mechanism (4), the tip of the bottom surface of the sand mixing jar body (1), fixed rabbling mechanism (4) and rotation type rabbling mechanism (6) is equipped with actuating mechanism (7), is used for driving fixed rabbling mechanism (4) and rotation type rabbling mechanism (6) rotation.
  2. 2. The sand mixing device for hardware casting machining according to claim 1, wherein a discharge port (2) is arranged on the bottom surface of the sand mixing tank body (1), and a spiral discharge mechanism (3) for discharging sand is arranged at the bottom end of the discharge port (2) and positioned in the discharge port (2).
  3. 3. The sand mixing device for casting and processing hardware according to claim 1, wherein the fixed stirring mechanism (4) comprises a sleeve rod (401) which is rotationally inserted on the bottom of the sand mixing tank body (1), a connecting ring (402) is sleeved on the surface of the sleeve rod (401), a scraping plate (403) is welded on the surface of the connecting ring (402), a transverse frame (404) is fixedly sleeved on the top end of the sleeve rod (401), and a fixed paddle (405) is fixedly installed on the bottom surface of the transverse frame (404).
  4. 4. A sand mixing device for casting hardware according to claim 3, characterized in that the limit mechanism (5) comprises a rod body (501) fixedly installed at the top end of the transverse frame (404) and located at two ends of the transverse frame, a stepped wheel (502) is sleeved on the surface rotation of the rod body (501), and a clamp spring (503) is clamped on the surface of the rod body (501).
  5. 5. The sand mixing device for casting hardware according to claim 3, wherein the rotary stirring mechanism (6) comprises a second rotating shaft (601) which is rotatably inserted in the sleeve rod (401) and a third rotating shaft (602) which is rotatably inserted on the transverse frame (404), the top ends of the second rotating shaft (601) and the third rotating shaft (602) are fixedly sleeved with synchronous wheels (603), two groups of synchronous wheels (603) are sleeved with synchronous belts (604), a cross (605) is fixedly installed at the bottom end of the third rotating shaft (602), and stirring paddles (606) are fixedly installed at the bottom surface of the cross (605).
  6. 6. The sand mixing device for casting and machining hardware according to claim 5, wherein the driving mechanism (7) comprises a side plate (701) fixedly installed on the bottom surface of the sand mixing tank body (1), a second motor (702) is fixedly installed on one side wall of the side plate (701), and conical gears (703) are fixedly connected to the bottom ends of the sleeve rod (401) and the second rotating shaft (601) and the output end of the second motor (702) and are in meshed arrangement.
  7. 7. The sand mixing device for casting and processing hardware according to claim 2, wherein the discharge port (2) comprises a discharge chute (201) arranged at the bottom of the sand mixing tank body (1), a discharge pipe (202) is arranged on the bottom surface of the discharge chute (201), and a discharge nozzle (203) is arranged on the surface of the discharge pipe (202) for discharging sand.
  8. 8. The sand mixing device for casting and processing hardware according to claim 7, wherein the spiral discharging mechanism (3) comprises a lower sealing plate (301) fixedly connected to the bottom end of the discharging groove (201) through bolts, a first motor (302) is fixedly installed on the bottom surface of the lower sealing plate (301), a first rotating shaft (303) is fixedly connected to the output end of the first motor (302), a spiral auger (304) is sleeved on the surface fixing sleeve of the first rotating shaft (303), and the spiral auger (304) is located inside the discharging groove (201) and is attached to the inner wall of the discharging groove (201).
  9. 9. The sand mixing device for casting and machining hardware according to claim 4, wherein the top edge of the sand mixing tank body (1) is of an L-shaped structure, and the stepped wheel (502) is in fit rolling with the top edge of the sand mixing tank body (1).
  10. 10. The sand mixing device for casting processing of hardware according to claim 5, wherein the top surface fixing cover of the cross frame (404) is provided with a protecting cover (8), and the synchronizing wheel (603) and the synchronizing belt (604) are both positioned in the protecting cover (8).

Description

Sand mixing equipment for hardware casting processing Technical Field The invention relates to the technical field of casting equipment, in particular to sand mixing equipment for casting and processing hardware. Background In the hardware casting production process, the mixing quality of molding sand is directly related to the dimensional accuracy, surface quality and yield of castings. The sand mixing process aims to mix sand materials with different granularity, binders and other additives sufficiently and uniformly to form molding sand with good formability and strength. However, conventional sand mixing equipment has inherent drawbacks in the stirring mechanism. Most devices use a single paddle or shaft for rotary stirring, with the stirring path being limited to a single circular or simple reciprocating motion centered on the shaft. The single stirring mode makes sand materials have limited flowing paths in the sand mixing tank body, and vortex or dead zone is easily formed at the edge, bottom or stirring dead zone of the tank body, so that the sand materials are unevenly mixed, and different components are unevenly layered or adhesive is unevenly distributed. The method can prolong necessary mixing time, reduce production efficiency, increase energy consumption, and seriously cause unstable molding sand performance due to insufficient local mixing, thereby causing casting defects such as sand holes, air holes, sand inclusion and the like of castings and influencing product quality. Therefore, the sand mixing equipment for casting and processing the hardware is provided. Disclosure of Invention The invention aims to solve the problems in the background technology and provides sand mixing equipment for hardware casting processing. The invention adopts the following technical scheme for realizing the purposes: The utility model provides a sand mixing equipment for hardware casting processing, includes the sand mixing tank body, fixed rabbling mechanism is installed in the bottom rotation of the sand mixing tank body, and fixed rabbling mechanism's top is provided with stop gear for it is spacing when rotatory to fixed rabbling mechanism, be provided with rotation type rabbling mechanism in the fixed rabbling mechanism, the bottom surface of the sand mixing tank body, fixed rabbling mechanism and rotation type rabbling mechanism's tip is equipped with actuating mechanism for drive fixed rabbling mechanism and rotation type rabbling mechanism are rotatory. Further, the bottom surface of the sand mixing tank body is provided with a discharge hole, and a spiral discharge mechanism for discharging sand is arranged at the bottom end of the discharge hole and positioned in the discharge hole. Further, fixed rabbling mechanism is including rotating the loop bar of grafting on the sand mixing tank body bottom, the fixed cover of surface of loop bar is equipped with the go-between, and the surface welding of its go-between has the scraper blade, the fixed cover in top of loop bar is equipped with the crossbearer, the bottom surface fixed mounting of crossbearer has fixed oar. Further, stop gear includes the body of rod of fixed mounting in crossbearer top and be located its both ends department, the surface rotation cover of body of rod is equipped with the step wheel, the surface joint of body of rod has the jump ring. Further, rotary stirring mechanism is including rotating the second pivot of grafting in the loop bar and rotating the third pivot of grafting on the cross, and the top fixed cover of second pivot and third pivot is equipped with the synchronizing wheel, and the cover is equipped with the hold-in range on two sets of synchronizing wheels, the bottom fixed mounting of third pivot has the cross, and the bottom surface fixed mounting of cross has the stirring rake. Further, the actuating mechanism includes the curb plate of fixed mounting in the sand mixing jar body bottom surface, a side wall fixed mounting of curb plate has the second motor, and the bottom of its loop bar and second pivot and the output of second motor all fixedly connected with bevel gear, it is the meshing setting. Further, the discharge gate is including setting up the blown down tank in the bottom of the muddy sand jar body, the bottom surface of blown down tank is provided with the discharging pipe, its the surface of discharging pipe is provided with the discharge gate for discharge sand material. Further, spiral discharge mechanism includes the lower sealing plate through bolt fixed connection in the blown down tank bottom, the bottom surface fixed mounting of lower sealing plate has first motor, the output fixedly connected with first pivot of first motor, the fixed surface cover of first pivot is equipped with the spiral auger, and the spiral auger is located the inside of blown down tank and laminates mutually with the inner wall of blown down tank. Further, the top edge of the sand mixing tank body is of an L-shaped stru