CN220700259U - Injection mold capable of trimming - Google Patents

Abstract

The utility model relates to an injection mold capable of trimming in the field of injection molds, which is provided with a notch component, wherein the notch component comprises a rotary mold core, a guide insert, an insert fixing plate and a fixing mold base, the rotary mold core is arranged in the middle of the fixing mold base, the rotary mold core can rotate in the fixing mold base, an insert mounting groove is formed in an upper mold plate, the guide insert is arranged in the insert mounting groove, the guide insert and the rotary mold core are positioned on the same axis, a torsion groove is formed in the surface of the rotary mold core, a torsion guide rod matched with the torsion groove is arranged at one end of the guide insert, which is close to the rotary mold core, the torsion guide rod can slide in the torsion groove, the insert fixing plate is arranged at the lower end of the upper mold plate, openings for penetrating through the torsion guide rod and the rotary mold core are formed in the middle of the insert fixing plate, flow passages are formed in the rotary mold core and the guide insert, and the guide insert are not required to be manually cut off the surplus materials from the surface of a product, time and labor are saved, and production cost is reduced.

Description

Injection mold capable of trimming

Technical Field

The utility model relates to the field of injection molds, in particular to an injection mold capable of trimming.

Background

Injection molding, also known as injection molding, is a method of injection and molding. The injection molding method has the advantages of high production speed, high efficiency, automation of operation, multiple patterns, various shapes, large size, accurate product size, easy updating of products, capability of forming products with complex shapes, suitability for mass production, products with complex shapes and other forming processing fields, stirring completely melted plastic materials by a screw at a certain temperature, injecting the plastic materials into a mold cavity by high pressure, and cooling and solidifying to obtain the formed products.

The existing injection mold product is usually molded together with the residual materials in the runner, the residual materials are required to be manually sheared off from the surface of the product after the product is demolded, the efficiency is low, the manpower and material resources are wasted, and the production cost is increased.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides the injection mold capable of trimming, which can effectively solve the technical problem that the residual materials need to be manually trimmed.

The technical scheme adopted for solving the technical problems is as follows:

the utility model provides an injection mold that can cut edge, includes mould subassembly and lower mould subassembly, and the last mould subassembly includes mold core, upper die base and cope match-plate pattern, is provided with the mold core recess in the upper die base, and the upper die base sets up in the mold core recess, and the cope match-plate pattern sets up in the top of upper die base, be provided with the notch subassembly between cope match-plate pattern and the upper die base, the notch subassembly includes rotatory mold core, direction abaculm, abaculm fixed plate and fixed die base, and rotatory mold core sets up in the middle part of fixed die base, and rotatory mold core can rotate in the fixed die base, and the cope match-plate pattern is provided with the abaculm mounting groove, and the direction abaculm sets up in the abaculm mounting groove, and direction abaculm is located same axis with rotatory mold core, and the surface of rotatory mold core is provided with twists reverse the recess, and twists reverse the guide arm can be in twisting the recess, and slide, and the abaculm fixed plate sets up in the lower extreme of cope match-plate pattern, and the middle part of abaculm fixed plate is provided with the opening that is used for passing twists arm and rotatory mold core, and the one end of abaculm is kept away from the direction abaculm, and upper die base, and flush with the bottom surface on the upper die core, rotatory and the direction abaculm is provided with the guide runner.

Further, the lower die assembly comprises a lower die core, a lower die base and a lower die plate, wherein the lower die core is arranged in the lower die base, the edge of the lower die core is flush with the surface of the lower die base, and the lower die core and the upper die core are matched to form an injection molding die cavity.

Further, be provided with thimble and square iron between die holder and the lower bolster, the one end of thimble passes lower mold core and die holder, and the other end is provided with the thimble fixed plate, and the lower extreme of thimble fixed plate is provided with the backing plate, is provided with the guide pillar between backing plate and the die holder, and the middle part of thimble fixed plate is provided with the guiding hole, and the guide pillar passes the guiding hole.

Further, be provided with the ring flange of being convenient for aim at the injection molding machine in the cope match-plate pattern, be provided with the mouth of moulding plastics in the ring flange, the mouth of moulding plastics is located same axis with the runner.

Further, one end of the insert fixing plate, which is close to the fixed die holder, is provided with a pull rod, a through hole is formed in the fixed die holder, one end, which is far away from the fixed die holder, of the pull rod is arranged in the through hole, a reset spring is arranged in the through hole, and two ends of the reset spring respectively prop against the pull rod and the upper die holder.

Further, a positioning ring is arranged on the surface of the rotary mold core, a positioning groove for placing the positioning ring is arranged in the upper mold base, and the rotary mold core can rotate in the positioning groove through the positioning ring.

Compared with the prior art, the utility model has the beneficial effects that: after the upper die assembly and the lower die assembly are assembled, high-temperature plastic is injected into an injection molding die cavity from the flow channel, after a product is cooled, when the upper die plate moves upwards, the guide insert moves together with the upper die plate, the torsion guide rod slides upwards in the torsion groove, so that the rotary die core rotates in the upper die base, the residual material in the flow channel is cut off from the surface of the product through the rotation of the rotary die core, the upper die base and the upper die core move upwards, the residual material falls from the flow channel, the residual material does not need to be manually cut off from the surface of the product, time and labor are saved, and the production cost is reduced.

Drawings

FIG. 1 is a schematic view of an injection mold capable of trimming edges according to the present utility model;

FIG. 2 is a schematic view of the structure of a rotary mold core and guide inserts in a trimmable injection mold according to the utility model;

FIG. 3 is a cross-sectional view of a rotary mold core and guide insert in a trimmable injection mold according to the utility model;

FIG. 4 is a schematic view of a rotary mold core in an injection mold capable of trimming according to the present utility model;

FIG. 5 is a schematic view of the structure of a guide insert in a trimmable injection mold of the present utility model;

the reference numbers in the drawing are 1-upper mold core, 2-upper mold base, 3-upper mold plate, 4-rotary mold core, 5-guiding slug, 6-slug fixing plate, 7-fixed mold base, 8-slug mounting groove, 9-torsion groove, 10-torsion guide rod, 11-runner, 12-lower mold core, 13-lower mold base, 14-lower mold plate, 15-thimble, 16-square iron, 17-thimble fixing plate, 18-backing plate, 19-guide post, 20-flange, 21-pull rod, 22-through hole, 23-reset spring, 24-positioning ring and 25-positioning groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

An injection mold capable of trimming according to the present utility model is described in detail below with reference to fig. 1 to 5:

the utility model provides an injection mold that can cut edge, includes upper die subassembly and lower die subassembly, and upper die subassembly includes mold core 1, upper die base 2 and cope match-plate pattern 3, is provided with the mold core recess in the upper die base 2, and upper die core 1 sets up in the mold core recess, and cope match-plate pattern 3 sets up in the top of upper die base 2, be provided with the ring flange 20 of being convenient for aim at the injection molding machine in the cope match-plate pattern 3, be provided with the mouth of moulding plastics in the ring flange 20, the mouth of moulding plastics is located same axis with runner 11, the lower die subassembly includes lower die core 12, die holder 13 and lower bolster 14, and lower die core 12 sets up in die holder 13, and the edge of lower die core 12 flushes with the surface of die holder 13, and upper die core 1 compound die form the moulding plastics die cavity, be provided with thimble 15 and square iron 16 between die holder 13 and the lower bolster 14, the one end of thimble 15 passes lower die core 12 and die holder 13, and the other end is provided with thimble fixed plate 17, and the lower extreme of fixed plate 17 is provided with backing plate 18, is provided with guide pillar 19 between backing plate 18 and the die holder 13, and the middle part of thimble fixed plate 17 is provided with guide hole, guide pillar 19, guide hole is passed through.

The die comprises an upper die plate 3 and an upper die holder 2, a notch component is arranged between the upper die plate 3 and the upper die holder 2, the notch component comprises a rotary die core 4, a guide cog 5, a cog fixed plate 6 and a fixed die holder 7, the rotary die core 4 is arranged in the middle of the fixed die holder 7, the rotary die core 4 can rotate in the fixed die holder 7, the upper die plate 3 is provided with a cog mounting groove 8, the guide cog 5 is arranged in the cog mounting groove 8, the guide cog 5 and the rotary die core 4 are positioned on the same axis, a torsion groove 9 is formed in the surface of the rotary die core 4, one end of the guide cog 5, close to the rotary die core 4, is provided with a torsion guide rod 10 matched with the torsion groove 9, the torsion guide rod 10 can slide in the torsion groove 9, the cog fixed plate 6 is arranged at the lower end of the upper die plate 3, the middle of the cog fixed plate 6 is provided with an opening for penetrating through the torsion guide rod 10 and the rotary die core 4, one end of the rotary die core 5, which is far away from the upper die core 1 and the upper die holder 2, and the bottom surface of the upper die holder 1 are flush, a positioning ring 24 is arranged on the surface of the rotary die holder 4, a positioning ring 24 is arranged in the upper die holder 2, a positioning groove 25 is arranged in the positioning ring 24, a positioning groove 25 is arranged in the positioning groove 21 is arranged in the rotary die core 4, a positioning ring 25 is arranged in the die core 4, a reset groove is arranged in the die holder 2, a reset groove 21 is arranged in the die seat, and a reset groove is arranged in the die seat 21, and a reset groove is arranged, and a through hole 21, and a through hole 21 is arranged, and is respectively, and is set in the reset 21, and is 23, and is respectively, and is set.

The injection mold capable of trimming is provided with the notch component, after the upper mold component and the lower mold component are assembled, high-temperature plastic is injected into the injection mold cavity from the runner 11, after the product is cooled, when the upper mold plate 3 moves upwards, the guide insert 5 moves together with the upper mold plate 3, the torsion guide rod 10 slides upwards in the torsion groove 9, the rotary mold core 4 rotates in the upper mold base 2, the residual material in the runner 11 is cut off from the surface of the product through the rotation of the rotary mold core 4, the upper mold base 2 and the upper mold core 1 move upwards, the residual material falls from the runner 11, the product is ejected from the lower mold core 12 through the ejector pins 15, the residual material is not required to be manually sheared off from the surface of the product, time and labor are saved, and the production cost is reduced.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. The utility model provides an injection mold that can cut edge, includes mould subassembly and lower mould subassembly, goes up mould subassembly and includes mold core, upper die base and cope match-plate pattern, is provided with the mold core recess in the upper die base, and the upper die core sets up in the mold core recess, and the cope match-plate pattern sets up in the top of upper die base, its characterized in that: a notch component is arranged between the upper die plate and the upper die base, the notch component comprises a rotary die core, a guide slug, a slug fixing plate and a fixing die base, the rotary die core is arranged in the middle of the fixing die base, the rotary die core can rotate in the fixing die base, the upper die plate is provided with a slug mounting groove, the guide slug is arranged in the slug mounting groove, the guide slug and the rotary die core are positioned on the same axis, the surface of the rotary die core is provided with a torsion groove, one end of the guide cog close to the rotary die core is provided with a torsion guide rod matched with the torsion groove, the torsion guide rod can slide in the torsion groove, the cog fixing plate is arranged at the lower end of the upper die plate, the middle part of the cog fixing plate is provided with an opening for penetrating the torsion guide rod and the rotary die core, one end of the rotary die core far away from the guide cog penetrates through the upper die core and the upper die base and is flush with the bottom surface of the upper die core, and flow passages are formed in the rotary die core and the guide cog.

2. An injection mold capable of trimming as in claim 1, wherein: the lower die assembly comprises a lower die core, a lower die base and a lower die plate, wherein the lower die core is arranged in the lower die base, the edge of the lower die core is flush with the surface of the lower die base, and the lower die core and the upper die core are matched to form an injection molding die cavity.

3. An injection mold capable of trimming according to claim 2, wherein: a thimble and a square iron are arranged between the lower die holder and the lower die plate, one end of the thimble penetrates through the lower die core and the lower die holder, the other end of the thimble is provided with a thimble fixing plate, the lower extreme of thimble fixed plate is provided with the backing plate, is provided with the guide pillar between backing plate and the die holder, and the middle part of thimble fixed plate is provided with the guiding hole, and the guide pillar passes the guiding hole.

4. A trimmable injection mold according to any of claims 1-3, characterized in that: the upper template is internally provided with a flange plate which is convenient for aligning the injection molding machine, the flange plate is internally provided with an injection molding opening, and the injection molding opening and the runner are positioned on the same axis.

5. A trimmable injection mold according to any of claims 1-3, characterized in that: the one end that the abaculus fixed plate is close to fixed die holder is provided with the pull rod, is provided with the through-hole in the fixed die holder, and the one end that the pull rod kept away from fixed die holder sets up in the through-hole, is provided with reset spring in the through-hole, and reset spring's both ends are supported pull rod and upper die holder respectively.

6. A trimmable injection mold according to any of claims 1-3, characterized in that: the surface of the rotary mold core is provided with a positioning ring, a positioning groove for placing the positioning ring is formed in the upper mold base, and the rotary mold core can rotate in the positioning groove through the positioning ring.