CN211616485U

CN211616485U - Automatic ejecting structure of glue is advanced to built-in latent of slider

Info

Publication number: CN211616485U
Application number: CN202021448197.2U
Authority: CN
Inventors: 邵月华; 刘文松
Original assignee: Changyuan Technology Tianjin Co ltd
Current assignee: Changyuan Technology Tianjin Co ltd
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2020-10-02
Anticipated expiration: 2030-07-22

Abstract

The utility model discloses a built-in automatic ejecting structure of glue that advances of diving of slider, include: the ejector pin, the return pin, the upper ejector plate, the lower ejector plate, the spring and the spring gasket are arranged on the sliding block, when the injection molding die sinking process is carried out, the spring is upwards ejected to drive the ejector pin to upwards and automatically eject the stub bar, when the ejector pin upwards ejects the stub bar, the cutting edge of the sliding block cuts off the joint of a product and the stub bar in the submerged rubber inlet, the appearance quality of a side fracture surface of the product is ensured, and meanwhile, the problem of pulling deformation of the product is avoided; in the injection mold closing process, the lower ejector pin of the front template of the injection mold is ejected back to realize the quick reset of the ejector pin; the utility model discloses a simple structure, compactness, occupation space is little, convenient operation, and process is simple, and production efficiency is high, and the high quality is with low costs.

Description

Automatic ejecting structure of glue is advanced to built-in latent of slider

Technical Field

The utility model relates to an injection mold design field especially relates to a built-in automatic ejecting structure of glue that advances of diving of slider.

Background

When using injection mold to carry out the product and mould plastics, in order to avoid there being the gluey point on the product surface, satisfy injection molding product's appearance quality demand and filling demand, design the gluey mode of advancing of dive in the mould usually, will dive into gluey mouthful and set up on the slider, after the completion of moulding plastics, the slider memory leaves the gluey stub bar of dive into, needs to dive into gluey stub bar and product separation and ejecting.

In the prior art, a slider is generally provided with a submerged rubber head thimble, an injection mold is provided with a material head thimble ejection mechanism, the submerged rubber head is pulled while the slider is moved and separated to be separated from a product, and the material head is ejected by the ejection mechanism; however, the separation mode easily causes poor fracture quality of the side section of the product, burrs occur, and manual secondary repair is needed; moreover, the product is easy to be pulled and deformed when being broken, and the quality of the product is influenced; in addition, in the prior art, the automatic ejection and resetting of the stub bar thimble can not be realized in the opening and closing processes of the injection mold, the mold structure is complex, the technological process is complicated, the production efficiency is low, and the cost is high.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model aims to provide a built-in automatic ejecting structure of glue that advances of diving of slider.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides an automatic ejecting structure of glue is advanced to built-in latent of slider, includes: the ejector pin, the return pin, the upper ejector pin plate, the lower ejector pin plate, the spring and the spring gasket are arranged on the sliding block, a flow passage for injecting glue is arranged at the top of the sliding block, an ejector pin hole which is positioned below the flow passage and is longitudinally communicated with the flow passage is arranged in the sliding block, a return pin hole is arranged in the sliding block, the return pin holes are symmetrically arranged at two sides of the ejector pin hole and are longitudinally communicated with the top of the sliding block, a limiting groove is arranged on the sliding block, the bottoms of the ejector pin hole and the return pin hole are communicated with the top of the limiting groove, the upper ejector pin plate and the lower ejector pin plate are arranged in the limiting groove, the upper end of the ejector pin penetrates into the ejector pin hole after penetrating through the upper ejector pin plate, the upper end of the return pin penetrates through the return pin hole after penetrating through the upper ejector pin plate, and the lower ejector pin plate is fixed below the upper, the spring hole is formed in the sliding block, the spring hole is located below the limiting groove and longitudinally communicated with the limiting groove, the spring is arranged in the spring hole, the spring gasket is fixed to the bottom of the sliding block, the upper end of the spring abuts against the lower end face of the lower ejector plate, and the lower end of the spring abuts against the upper end face of the spring gasket.

The ejector pins and the return pins are cylinders with circular hanging tables at the bottoms, the cylinder parts are located between the upper ejector pin plate and the lower ejector pin plate, and the diameters of the return pins are larger than those of the ejector pins.

The two spring holes are symmetrically arranged in the middle of the lower part of the thimble and the lower part of the return pin.

And the side surface of the sliding block and the side surface of the rear template mold core of the injection mold are matched so as to realize side surface glue sealing.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses set up and enter gluey automatic ejection structure in the slider, when the die sinking process of moulding plastics, pop out upwards through the spring and drive the thimble upwards and push out the stub bar automatically, the thimble is when ejecting the stub bar upwards, the slider blade cuts off the junction of product and stub bar, has guaranteed the appearance quality of product side fracture surface, has also avoided the product to pull the problem of deformation simultaneously; in the injection mold closing process, the lower ejector pin of the front template of the injection mold is ejected back to realize the quick reset of the ejector pin; the utility model discloses a simple structure, compactness, occupation space is little, convenient operation, and process is simple, and production efficiency is high, and the high quality is with low costs.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a partial structural diagram of the present invention;

FIG. 3 is a schematic view of a partial structure of the present invention;

fig. 4 is a first schematic structural diagram of the slide block of the present invention;

fig. 5 is a schematic structural diagram of the slider according to the present invention.

In the figure: 1-a slide block; 11-a flow channel; 12-thimble holes; 13-needle return hole; 14-a limiting groove; 15-spring hole; 16-glue submerging port; 2-a thimble; 3-back stitching; 4-upper ejector plate; 5-lower ejector plate; 6-a spring; 7-spring washer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer and more obvious, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

As shown in fig. 1 to 5, the utility model provides a built-in automatic ejecting structure of glue that advances of latent of slider, include: the ejector pin structure comprises a sliding block 1, an ejector pin 2, a return pin 3, an upper ejector pin plate 4, a lower ejector pin plate 5, a spring 6 and a spring gasket 7, wherein the ejector pin 2, the return pin 3, the upper ejector pin plate 4, the lower ejector pin plate 5 and the spring gasket 7 are arranged on the sliding block 1, a flow passage 11 for injecting glue is arranged at the top of the sliding block 1, an ejector pin hole 12 which is arranged below the flow passage 11 and is longitudinally communicated with the flow passage 11 is arranged in the sliding block 1, a return pin hole 13 is arranged in the sliding block 1, the return pin holes 13 are symmetrically arranged at two sides of the ejector pin hole 12 and longitudinally communicated with the top of the sliding block 1, a limiting groove 14 is arranged on the sliding block 1, the bottoms of the ejector pin hole 12 and the return pin hole 13 are communicated with the top of the limiting groove 14, the upper ejector pin plate 4 and the lower ejector pin plate 5 are arranged in the limiting groove 14, an ejector pin fixing, the upper end of the needle return 3 penetrates through the needle return fixing hole and then penetrates through the needle return hole 13, the lower ejector plate 5 is fixed on the lower portion of the upper ejector plate 4 through screws, a spring hole 15 is formed in the sliding block 1, the spring hole 15 is located below the limiting groove 14 and longitudinally communicated with the limiting groove, the spring 6 is arranged in the spring hole 15, the spring gasket 7 is fixed on the bottom of the sliding block 1 through screws, the upper end of the spring 6 abuts against the lower end face of the lower ejector plate 5, and the lower end of the spring 6 abuts against the upper end face of the spring gasket 7.

Specifically, the thimble 2 and the return needle 3 are both cylinders with circular hanging platforms at the bottoms, the cylinder part is located between the upper thimble plate 4 and the lower thimble plate 5, and the diameter of the return needle 3 is larger than that of the thimble 2.

Specifically, the two spring holes 15 are symmetrically arranged in the middle of the lower portions of the thimble 2 and the return pin 3.

Specifically, a glue submerging opening 16 communicated with the flow channel 11 is formed in the slide block 1, and the side face of the slide block 1 and the side face of a rear template mold core of the injection mold are matched so as to realize side glue sealing.

The utility model discloses a concrete working process does:

in the mold closing state of the injection mold, the spring 6 is in a compressed state, the ejector pin 2, the return pin 3, the upper ejector pin plate 4 and the lower ejector pin plate 5 are all in an initial state, after the injection molding is completed, the injection mold is opened, the upper ejector pin plate 4 and the lower ejector pin plate 5 are ejected by the elastic force of the spring 6 to synchronously drive the ejector pin 2 and the return pin 3 to eject, the ejector pin 2 ejects a stub bar reserved in the submerged rubber orifice, then the sliding block 1 retreats, and the injection mold ejects a product; in the die assembly process, the front template of the injection die is contacted with the return pin 3 and pushes back and resets the return pin 3, and in the process, the return pin 3 drives the upper ejector plate 4, the lower ejector plate 5 and the ejector pins 2 to move downwards and reset.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a built-in automatic ejecting structure of advancing of glue that dives of slider which characterized in that includes: the injection molding device comprises a sliding block (1), and an ejector pin (2), a return pin (3), an upper ejector pin plate (4), a lower ejector pin plate (5), a spring (6) and a spring gasket (7) which are arranged on the sliding block (1), wherein a flow channel (11) for injection molding glue feeding is arranged at the top of the sliding block (1), an ejector pin hole (12) which is located below the flow channel (11) and is longitudinally communicated with the flow channel is arranged in the sliding block (1), a return pin hole (13) is arranged in the sliding block (1), the return pin holes (13) are symmetrically arranged on two sides of the ejector pin hole (12) and longitudinally communicated with the top of the sliding block (1), a limiting groove (14) is arranged on the sliding block (1), the bottoms of the ejector pin hole (12) and the return pin hole (13) are communicated with the top of the limiting groove (14), the upper ejector pin plate (4) and the lower ejector pin plate (5) are arranged in the limiting groove (14), the upper end of thimble (2) is passed it penetrates behind last thimble board (4) in thimble hole (12), the upper end of returning needle (3) is passed go up thimble board (4) back and is passed return pinhole hole (13), thimble board (5) are fixed in down go up the below of thimble board (4), be provided with spring hole (15) on slider (1), spring hole (15) are located the below of spacing groove (14) and vertically link up rather than, spring (6) set up in spring hole (15), spring shim (7) are fixed in the bottom of slider (1), the upper end of spring (6) supports the lower terminal surface of thimble board (5) down, the lower extreme of spring (6) supports the up end of spring shim (7).

2. The automatic ejection structure of the submerged glue in the slider as claimed in claim 1, wherein the ejector pin (2) and the return pin (3) are both cylinders with a circular hanging platform at the bottom, and the cylinder part is located between the upper ejector pin plate (4) and the lower ejector pin plate (5), and the diameter of the return pin (3) is larger than that of the ejector pin (2).

3. The automatic ejection structure of the embedded latent glue of the sliding block according to claim 1, wherein the number of the spring holes (15) is two, and the two spring holes are symmetrically arranged in the middle of the lower portions of the thimble (2) and the return pin (3).

4. The automatic push-out structure of the built-in latent glue of the sliding block according to claim 1 is characterized in that a latent glue inlet (16) communicated with the runner (11) is formed in the sliding block (1), and the side surface of the sliding block (1) is matched with the side surface of a rear template core of an injection mold so as to realize side surface glue sealing.