CN-121650197-B - Multi-row-position sliding block structure of injection mold

CN121650197BCN 121650197 BCN121650197 BCN 121650197BCN-121650197-B

Abstract

The invention relates to a multi-row slide block structure of an injection mold, which comprises a positioning slide block and a positioning oil cylinder which are respectively arranged front and back, wherein the bottom of the positioning slide block is also provided with a multi-section core pulling module which is obliquely distributed, the multi-section core pulling module is arranged front low and back high, the multi-section core pulling module comprises a traction column, a core column concentrically fixed at the front end of the traction column, a forming sleeve concentrically and movably sleeved outside the core column, and a clamping sleeve concentrically and movably sleeved outside the forming sleeve, the rear end of the traction column is movably connected at the front side corner of the bottom of the positioning slide block to have the function of front-back oblique linear movement.

Inventors

YANG ZHENHUA
GU YUE
LOU HAIWEI
YANG ZHENYAN

Assignees

宁波慕德模塑科技有限公司

Dates

Publication Date: 20260512
Application Date: 20260206

Claims (9)

1. The utility model provides a multirow position slider structure of injection mold, includes location slider and the positioning cylinder that sets up around respectively, and the flexible end of positioning cylinder transversely sets up and fixes on the location slider forward, its characterized in that: The bottom of the positioning slide block is also provided with a plurality of sections of core-pulling modules which are distributed obliquely, the sections of core-pulling modules are arranged at front low and rear high, the sections of core-pulling modules comprise a traction column, a core column concentrically fixed at the front end of the traction column, a forming sleeve concentrically and movably sleeved outside the core column, and a clamping sleeve concentrically and movably sleeved outside the forming sleeve, and the rear end of the traction column is movably connected at the corner of the front side of the bottom of the positioning slide block and has the function of front-rear oblique linear movement; The multi-section core pulling module further comprises two section pulling strips which are inclined and movably inserted into the left side and the right side of the pulling column, are respectively provided with a front-back inclined linear movement function and are diagonally arranged on the left side and the right side of the core column, are respectively arranged at the front lower part and the rear higher part and are respectively parallel to the central axis of the pulling column, and the front ends of the two section pulling strips are respectively fixed at the rear end of the forming sleeve; The multi-section core pulling module further comprises two core rods which are obliquely and movably embedded in the inner walls of the upper side and the lower side of the forming sleeve so as to have the function of front-back oblique linear movement and are arranged diagonally to each other, each core rod is arranged at the front lower side and the rear higher side and is parallel to the central axis of the forming sleeve, the outer wall of each core rod is slidably attached to the inner wall of the forming sleeve, and the rear end of each core rod is fixed at the front end of the traction column; The upper side and the lower side of the outer peripheral surface of the clamping sleeve are respectively provided with a spiral groove, the two spiral grooves are arranged in a central symmetry manner, correspondingly, the outer walls of the two core rods are respectively and fixedly provided with a convex column, the two convex columns are perpendicular to the central axis of the clamping sleeve and are arranged in a diagonal manner, and the end parts of the two convex columns are respectively and movably embedded in the two spiral grooves; the multi-section core pulling module further comprises two contact pins which are respectively and obliquely fixed at the front ends of the two core rods, and each contact pin is parallel to the central axis of the forming sleeve; An alignment unit is also arranged between the core column and the forming sleeve, the alignment unit comprises a traction beam which is transversely and movably connected in the core column in a penetrating way so as to have the function of moving back and forth along the axial direction of the core column, and two alignment rods which are obliquely and movably connected at the lower side of the traction beam so as to have the function of translating left and right and are symmetrically arranged left and right, the cross-sectional shape of draft sill is the cross, both ends are all fixed on the shaping sleeve about the draft sill, two the tip of counterpoint pole all moves through the front end of stem and all stretches into the lower extreme opening part inside of shaping sleeve.
2. The multi-row slide block structure of the injection mold according to claim 1, wherein the outer walls of the left side and the right side of the upper end of the traction column are provided with a traction groove which is distributed in an inclined manner, the two traction grooves are arranged at the front side and the rear side and are distributed diagonally, correspondingly, the corner of the front side of the bottom of the positioning slide block is provided with an avoidance inclined plane, two driving blocks which are distributed transversely and symmetrically arranged at the left side and the right side of the upper end of the traction column are fixedly embedded in the avoidance inclined plane, and the outer walls of the bottoms of the two driving blocks are respectively matched with the inner walls of the lower sides of the two traction grooves.
3. The multi-row sliding block structure of the injection mold of claim 1, wherein a slot hole is formed between the outer walls of the left side and the right side of the core column, a limit groove which is symmetrically distributed with each other is formed between the inner walls of the left side and the right side of the slot hole, the traction beam is transversely and movably connected in the slot hole in a penetrating way, so that the protruding parts of the left side and the right side of the traction beam are respectively movably arranged in the two limit grooves, a cross cavity hole is formed on the outer walls of the left side and the right side of the molding sleeve, and the left end and the right end of the traction beam are respectively inserted and fixed in the two cross cavity holes.
4. The multi-row slide block structure of the injection mold according to claim 3, wherein the front end of the core column is outwardly formed with concentrically arranged step columns, guide channels which are obliquely distributed and are mutually communicated with the outer walls of the step columns are respectively arranged between the left side edge and the right side edge of the end part of the step column and the inner walls of the lower side of the slot holes, the two guide channels are diagonally arranged, the two alignment rods are respectively movably embedded in the two guide channels, and the outer walls of the opposite sides of the two alignment rods are respectively and slidably attached to the bottom surfaces of the two guide channels.
5. The multi-row slide block structure of the injection mold according to claim 4, wherein the front end of the molding sleeve is outwardly formed with a concentrically arranged frustum portion, and the end of the frustum portion is provided with positioning holes which are concentrically distributed inside the molding sleeve and are mutually communicated and mutually matched with the step column, and the inner diameter of the positioning holes is larger than the outer diameter of the step column.
6. The multi-row sliding block structure of the injection mold of claim 5, wherein the lower end opposite side outer walls of the two alignment rods are respectively and outwards provided with an opposite side outer wall of each opposite side block which is mutually and symmetrically arranged, the opposite side outer wall of each opposite side block is mutually matched with the inner wall of the positioning hole, the outer corner of the end part of each opposite side block is respectively provided with an arc notch groove which is mutually and symmetrically distributed, and the left side edge and the right side edge of the outer end opening of each positioning hole are correspondingly provided with two symmetrically distributed notch grooves.
7. The multi-row sliding block structure of the injection mold of claim 1, wherein a check ring which is concentrically arranged is outwards formed at the rear end of the molding sleeve, the outer diameter of the check ring is larger than that of the molding sleeve and equal to that of the traction column, two arc-shaped through holes which are diagonally distributed are formed in the outer side end face of the check ring, a guide groove is formed in the outer walls of the left side and the right side of the molding sleeve respectively, two core rods are movably embedded in the two guide grooves respectively, and the rear ends of the two core rods are inserted in the two arc-shaped through holes respectively.
8. The multi-row slide block structure of an injection mold according to claim 1, wherein a planar section is formed at each of the front corners of the rear ends of the two segmented traction bars.
9. The multi-row slide block structure of the injection mold according to claim 1, wherein two core blocks which are diagonally arranged are outwardly formed on the outer wall of the front end of the clamping sleeve.

Description

Multi-row-position sliding block structure of injection mold Technical Field The invention relates to the technical field of injection molding, in particular to a multi-row slide block structure of an injection mold. Background The injection mold is a key tool for molding plastic products in industrial production, plastic raw materials are converted into products with specific shapes through an injection molding processing technology, the application range of the injection mold covers multiple fields of electronics, automobiles, household appliances and the like, the sliding block is a mold assembly which can slide in a certain angle in a mold opening action of the injection mold in a direction perpendicular to a mold opening and closing direction or in a mold opening and closing direction, and the injection mold has the core function of solving the problem ‌ of ‌ back-off inconsistent with the mold opening and closing direction in the product structure and ensuring that the product can be smoothly demoulded. The existing slide blocks are mainly only provided with a single-row movement function, so that the slide blocks can only be used for processing one back-off or side concave structure of a single side surface of an injection molding part, in the actual production process, the side surface of the injection molding part with complex design often comprises a plurality of back-off or side concave structures, the demolding directions of the individual back-off or side concave structures are even inconsistent, the application range of the slide blocks with single row cannot be smaller, if the plurality of back-off or side concave structures are formed in sequence, a mode of repeated forming is needed, the operation process is complicated, the production efficiency is lower, a plurality of sets of molds are needed to be matched, the production cost is increased, if the plurality of back-off or side concave structures are formed at one time, a plurality of mutually matched modules are needed to be additionally arranged on the molds from different directions, the structures of the molds are complex, the difficulties of processing, the installation and debugging of the molds are large, and the problems of time and labor are wasted and the waiting needs to be solved. Disclosure of Invention Aiming at the current state of the art, the technical problem to be solved by the invention is to provide the multi-row slide block structure of the injection mold, which has a plurality of row-position movement functions to form a plurality of inverted buckles or undercut structures with inconsistent demolding directions at one time, so that the operation process is simplified, the production efficiency is improved, the production cost is reduced, the mold structure is simplified, the mold processing, mounting and debugging difficulties are reduced, and the time-saving and labor-saving effects are achieved. The technical scheme adopted for solving the technical problems is that the multi-row slide block structure of the injection mold comprises a positioning slide block and a positioning oil cylinder which are respectively arranged front and back, wherein the telescopic end of the positioning oil cylinder is transversely arranged forwards and fixed on the positioning slide block, and the multi-row slide block structure is characterized in that: The bottom of the positioning slide block is also provided with a plurality of sections of core-pulling modules which are distributed obliquely, the sections of core-pulling modules are arranged at front low and rear high, the sections of core-pulling modules comprise a traction column, a core column concentrically fixed at the front end of the traction column, a forming sleeve concentrically and movably sleeved outside the core column, and a clamping sleeve concentrically and movably sleeved outside the forming sleeve, and the rear end of the traction column is movably connected at the corner of the front side of the bottom of the positioning slide block and has the function of front-rear oblique linear movement; The multi-section core pulling module further comprises two section pulling strips which are inclined and movably inserted into the left side and the right side of the pulling column, are respectively provided with a front-back inclined linear movement function and are diagonally arranged on the left side and the right side of the core column, are respectively arranged at the front lower part and the rear higher part and are respectively parallel to the central axis of the pulling column, and the front ends of the two section pulling strips are respectively fixed at the rear end of the forming sleeve; The multi-section core pulling module further comprises two core rods which are obliquely and movably embedded in the inner walls of the upper side and the lower side of the forming sleeve so as to have the function of front-back oblique linear movement and are arranged diagonal