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CN-122007191-A - Connecting structure of core and core seat in mold

CN122007191ACN 122007191 ACN122007191 ACN 122007191ACN-122007191-A

Abstract

The invention provides a connecting structure of a core and a core print seat in a die, and belongs to the technical field of dies. The die solves the problem that the matching precision of the core and the core print seat in the existing die is reduced after long-time use. The connecting structure of the core and the core seat in the mold comprises the core seat and the core, wherein the core seat is provided with the positioning groove, the core is embedded into the positioning groove and is pressed on the bottom surface of the positioning groove under the action of the bolt, the connecting structure comprises a rack and an operating lever, the core is provided with a guide hole which is vertical to the bolt and is long-strip-shaped, the rack axially slides to penetrate through the guide hole and is radially fixed by the core, the core is provided with a long-strip-shaped avoiding hole, the guide hole is mutually vertical to and communicated with the avoiding hole, and the core seat is provided with a locking hole concentric with the guide hole and a mounting hole concentric with the avoiding hole. The connecting structure of the core and the core print seat in the die ensures the matching precision between the core print seat and the core when the die is used for a long time.

Inventors

  • LI KEJIE
  • YING JIANHUA
  • LI JINGUO
  • ZHOU XINLEI
  • ZHANG TAO
  • CHEN JIANFU
  • LAI XIAOXIANG
  • Tong Zihan

Assignees

  • 台州职业技术学院
  • 浙江赛豪实业有限公司

Dates

Publication Date
20260512
Application Date
20260402

Claims (10)

  1. 1. The connecting structure of the core and the core seat in the mold comprises a core seat (2) and a core (1), wherein the core seat (2) is provided with a positioning groove (24), the core (1) is embedded into the positioning groove (24) and is tightly pressed on the bottom surface of the positioning groove (24) under the action of a bolt (3), the connecting structure is characterized by comprising a rack (4) and an operating rod (5), the core (1) is provided with a guide hole (11) which is perpendicular to the bolt (3) and takes a strip shape, the rack (4) axially slides to penetrate through the guide hole (11) and is radially fixed by the core (1), the core (1) is provided with a strip-shaped avoidance hole (12), the guide hole (11) is mutually perpendicular to and communicated with the avoidance hole (12), the core seat (2) is provided with a locking hole (21) concentric with the guide hole (11) and a mounting hole (22) concentric with the avoidance hole (12), the end part of the operating rod (5) is provided with a meshing gear tooth (51) which is meshed with the operating rod (5) and is meshed with the rack (51) in the avoidance hole (12), the operating rod (5) can drive the rack (4) to axially move, so that the end part of the rack (4) slides into the locking hole (21) to radially fix the rack (4) by the core print seat (2).
  2. 2. A connecting structure of a core and a core print in a mold according to claim 1, characterized in that the lever (5) is in a long bar shape, and the lever (5) is located in the middle of the core (1).
  3. 3. The connecting structure of the core and the core print in the mold according to claim 1 or 2, characterized in that a limit bar (41) arranged along the length direction of the rack (4) is formed on the side wall of the rack (4) in a protruding mode, a limit slideway (11 a) for sliding the limit bar (41) is formed on one side of the guide hole (11), and the outer side wall of the limit bar (41) is attached to the side wall of the limit slideway (11 a).
  4. 4. A connecting structure of a core and a core print in a mold according to claim 3, wherein the rack (4) is cylindrical, the transverse cross section of the limit bar (41) is square, and the limit bar (41) and the meshing teeth (42) on the rack (4) are symmetrically arranged along the radial direction of the rack (4).
  5. 5. The connecting structure of a core and a core print in a mold according to claim 1 or 2, wherein one end of the operating lever (5) is provided with meshing gear teeth (51) positioned in the avoidance hole (12), the other end is provided with an operating part (52) protruding along the circumferential direction and being cylindrical, the mounting hole (22) is a counter bore, the operating part (52) is arranged in a counter bore end of the counter bore, and the outer end of the operating part (52) is provided with an operating blind hole (52 a).
  6. 6. The connecting structure of the core and the core print in the mold according to claim 5, characterized in that the operation part (52) is welded with a solder plate (6) for sealing the operation blind hole (52 a), the outer wall of the core print (2) is provided with a hole (23) sealed with a mounting hole (22), and the core print (2) is fixedly connected with a cover plate (7) for shielding the solder plate (6) in the sealed hole (23).
  7. 7. A connecting structure of core and core print in a mould according to claim 6, characterized in that a relief gap (8) is formed between the cover plate (7) and the solder plate (6).
  8. 8. The connecting structure of a core and a core print in a mold according to claim 1 or 2, wherein the guide hole (11) and the locking hole (21) are cylindrical grooves, and the diameter of the guide hole (11) is equal to the diameter of the locking hole (21).
  9. 9. A connecting structure of a core and a core print in a mould according to claim 3, characterized in that one end of the limit slide (11 a) penetrates the core (1) and the port of the end communicates with the notch of the guide hole (11).
  10. 10. A connecting structure of a core and a core print in a mould according to claim 3, characterized in that the bottom of the relief hole (12) and the lever (5) have a mounting gap (9) between them.

Description

Connecting structure of core and core seat in mold Technical Field The invention belongs to the technical field of dies, and relates to a connecting structure of a core and a core print seat in a die. Background In the use process of the die, the core print seat and the core are usually fixedly connected by bolts, and when the quality of the die is in a problem after the die is used, whether the die is in a fault caused by improper use or in a fault caused by production is also required to be judged, so that disputes are caused between a producer and a die manufacturing enterprise when the die is in a problem. The connection between core and core seat in current mould, as chinese patent application publication number CN216441397U discloses a combination drawing die for groove type spare, die body and detachable cantilever, the die body includes the die sleeve and is located the inside mold core of die sleeve, mold core and die sleeve tight fit are connected, the cantilever includes core and core seat, the upper end at the die sleeve is fixed to the core seat, the upper portion and the core seat fixed connection of core, the lower part of core extends to the drawing die hole of die body, and the core section thickness that is located drawing die hole equals with the recess width of finished groove type spare. In the structure, the core and the core print seat are fixedly connected through the bolts, but when the structure is used for a long time, the bolts can be loosened due to fatigue problems, so that the matching precision of the core and the core print seat is affected, and the molding quality of a plastic part is affected. Disclosure of Invention The invention aims to solve the problems in the prior art and provides a connecting structure of a core and a core print seat in a die, and the technical problem to be solved by the invention is how to solve the problem that the matching precision of the core and the core print seat in the prior die is reduced after long-time use. The aim of the invention can be achieved by the following technical scheme: The utility model provides a connection structure of core and core seat in mould, the mould includes core seat and core, the positioning groove has been seted up to the core seat, the core embedding positioning groove is interior and compress tightly on the bottom surface of positioning groove under the effect of bolt, its characterized in that, this connection structure includes rack and control rod, set up on the core with the perpendicular and rectangular form guiding hole that is of bolt, the rack is worn to locate in the guiding hole along the axial slip and radially fixed by the core, set up on the core and be rectangular form dodge the hole, guiding hole and dodge hole mutually perpendicular setting and intercommunication, set up on the core seat with guiding hole endocentric locking hole and dodge hole endocentric mounting hole, the tip of control rod has the meshing teeth of a cogwheel, the control rod wears to establish in the mounting hole and dodge the downthehole and make the meshing teeth of a cogwheel and rack meshing, the control rod can drive the tip of rack axial movement and make the rack slide into the locking downthehole and make the rack radially fixed by the core seat. The guide hole and the avoidance hole are formed in the core, the guide hole and the avoidance hole are perpendicular to each other and are communicated, the locking hole and the mounting hole are formed in the core print seat, the rack is placed in the guide hole during mounting, the rack is radially fixed by the core, the core is placed in the positioning groove of the core print seat, the bolt is tightly pressed on the bottom surface of the positioning groove through the bolt threads, the operating rod is penetrated in the mounting hole and the avoidance hole, meshing gear teeth of the operating rod are meshed with the rack, the operating rod is rotated again, one end of the rack is driven to slide into the locking hole, the rack is radially fixed by the core print seat, the rack is fixed by the core print seat, the stable positioning of the core print seat and the core print seat is realized, the core is further stably pressed on the bottom surface of the positioning groove, the core print seat and the core print seat are limited through the rack and the core print seat, and the bolt are fixedly connected, the connecting direction of the bolt is perpendicular to the axial direction of the rack, the core print seat and the core print seat can be tightly pressed on the bottom surface of the positioning groove of the core print seat by the self, the core print seat is further stable, the effect on the core print seat is avoided, and the long-time precision is guaranteed when the core is in the double-time-axis-to-time precision is realized, and the long-time precision is prevented from being influenced when the core is in the double-time-phase. In the connecting structur