CN218477073U

CN218477073U - Injection mold

Info

Publication number: CN218477073U
Application number: CN202222714128.7U
Authority: CN
Inventors: 刘斌; 齐会龙; 聂革; 宋文正; 李俊辉; 胡勇齐
Original assignee: Shenzhen Woody Vapes Technology Co Ltd
Current assignee: Shenzhen Woody Vapes Technology Co Ltd
Priority date: 2022-10-09
Filing date: 2022-10-09
Publication date: 2023-02-14
Anticipated expiration: 2032-10-09

Abstract

The utility model discloses an injection mold, include: the front mold is provided with a front mold core; the rear mould is positioned below the front mould, can move relative to the front mould, is provided with a rear mould core corresponding to the front mould core, and is provided with an accommodating groove and a sliding groove; the runner is used for being communicated with a product cavity on the rear mold core; the nozzle shearing mechanism comprises a sliding block and an inclined guide post, wherein two ends of the sliding block are respectively located in the accommodating groove and the sliding groove and can move in the accommodating groove and the sliding groove, the flow channel is arranged on the sliding block, an inclined guide hole is formed in the sliding block, the inclined guide post is obliquely arranged on the front die so as to be obliquely inserted into the inclined guide hole when the front die and the rear die are closed, the sliding block is driven to move when the front die and the rear die are opened, and therefore a nozzle formed by injection molding in the flow channel is cut and separated from a product in a product cavity.

Description

Injection mold

Technical Field

The utility model relates to a mould field, more specifically relates to an injection mold.

Background

The injection molding part generally refers to a plastic product produced by injection molding through an injection molding machine, when the injection molding machine is used for producing the plastic product through injection molding, the produced and opened plastic product is provided with a water gap needing to be processed, at present, professional technicians are generally required to manually cut the water gap, the process is complex, the labor energy consumption is high, the labor cost is high, the water gap of each product is basically consistent in cutting, the workload is large, mistakes are easy to make, and the quality is uncontrollable.

Disclosure of Invention

The utility model aims to solve the technical problem that an injection mold at the die sinking in-process but the automatically cropped mouth of a river is provided.

In order to solve the technical problem, the utility model provides an injection mold, include:

the front mold is provided with a front mold core;

the rear mould is positioned below the front mould, can move relative to the front mould, is provided with a rear mould core corresponding to the front mould core, and is provided with an accommodating groove and a sliding groove;

the runner is used for being communicated with a product cavity on the rear mold core;

the nozzle shearing mechanism comprises a sliding block and an inclined guide post, wherein two ends of the sliding block are respectively located in the accommodating groove and the sliding groove and can move in the accommodating groove and the sliding groove, the flow channel is arranged on the sliding block, an inclined guide hole is formed in the sliding block, the inclined guide post is obliquely arranged on the front die so as to be obliquely inserted into the inclined guide hole when the front die and the rear die are closed, the sliding block is driven to move when the front die and the rear die are opened, and therefore a nozzle formed by injection molding in the flow channel is cut and separated from a product in a product cavity.

The further technical scheme is as follows: the water gap shearing mechanism further comprises a limiting piece, and the limiting piece is located at the end of the sliding groove to limit the moving distance of the sliding block.

The further technical scheme is as follows: and a pressing piece is arranged between the two sides of the sliding block and the groove wall of the sliding groove.

The further technical scheme is as follows: the inclined angle between the inclined guide post and the front die is 30-60 degrees.

The further technical scheme is as follows: the injection mold also comprises an ejector pin component for ejecting a product in a cavity of a rear mold core product, and the ejector pin component is connected with the rear mold through a guide pillar.

The further technical scheme is as follows: the guide post is sleeved with a spring.

The further technical scheme is as follows: the ejector pin assembly comprises an ejector pin panel and a plurality of ejector pins positioned on the ejector pin panel, the ejector pin panel is connected with the rear die through the guide posts, and each ejector pin is positioned below a product cavity of the rear die core so as to eject a product in the product cavity of the rear die core.

The further technical scheme is as follows: and the front mold is provided with a sprue bush, and the sprue bush penetrates through the front mold core to be communicated with the flow channel when the front mold and the rear mold are closed.

The utility model has the advantages of: compared with the prior art, the utility model discloses injection mold is provided with the mouth of a river and cuts mechanism, the mouth of a river cuts oblique guide pillar that sets up on the front mould in the mechanism and can insert to the oblique guide hole of slider in the front mould when front mould and back mould compound die, through the cooperation of oblique guide pillar and oblique guide hole, at front mould and back mould die sinking in-process, can drive the slider and remove, thereby realize the purpose of the product cutting separation that forms in the mouth of a river that moulds plastics in the runner and the product die cavity, the problem that the product needs the artifical mouth of a river of cuting has been avoided, the production efficiency is improved, the product quality is promoted, and mouth of a river cuts mechanism simple structure, the preparation is convenient, and the maintenance cost is low.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the injection mold of the present invention.

Fig. 2 is a schematic front view of the injection mold shown in fig. 1.

Fig. 3 is a schematic diagram of the injection mold of the present invention in a state where the nozzle and the product are cut and separated after injection molding.

Fig. 4 is a detailed structural view of a front mold in the injection mold shown in fig. 1.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more clearly understood by those skilled in the art, the present invention will be further described with reference to the accompanying drawings and examples.

Referring to fig. 1 to 4, fig. 1 to 4 show a specific embodiment of the injection mold of the present invention. In the embodiment shown in the drawings, the injection mold comprises a front mold 11, a rear mold 12, a runner 13 and a gate shearing mechanism 14; wherein, the front die 11 is provided with a front die core 111; the rear mold 12 is located below the front mold 11 and can move relative to the front mold 11, a rear mold core 121 is installed at a position corresponding to the front mold core 111, an accommodating groove 1211 is formed in the rear mold core 121, and a sliding groove 122 is further formed in the rear mold 12; the runner 13 is used for communicating with a product cavity 1212 on the rear mold core 121; the nozzle shearing mechanism 14 includes a slider 141 and an inclined guide post 142, two ends of the slider 141 are respectively located in the receiving groove 1211 and the slide groove 122, and the slider 141 and the inclined guide post 142 are movable in the receiving groove 1211 and the slide groove 122, the runner 13 is disposed on the slider 141, the slider 141 is provided with an inclined guide hole 1411, the inclined guide post 142 is obliquely disposed on the front mold 11 so as to be obliquely inserted into the inclined guide hole 1411 when the front mold 11 and the rear mold 12 are closed, and the slider 141 is driven to move when the front mold 11 and the rear mold 12 are opened, as shown in fig. 3, a nozzle 20 formed by injection molding in the runner 13 can be cut and separated from a product 30 in a product cavity 1212, and the position of the nozzle 20 and the product 30 is shown more clearly in fig. 3, the front mold 11 is not shown. Further, in this embodiment, the inclined angle a between the inclined guide post 142 and the front mold 11 may be 30 ° to 60 °.

It can know, work as the utility model discloses during well front mould 11 and back mould 12 compound die, product cavity in the front mould core 111 and the product cavity 1212 on the back mould core 121 enclose to close and form the die cavity, the melt pours into through runner 13 and moulds into product 30 in the die cavity, the slope sets up oblique guide pillar 142 on front mould 11 and can insert to slider 141 oblique guide hole 1411 in, product 30 is located the product cavity 1212 of back mould core 121 when front mould 11 and back mould 12 die sinking, cooperation through oblique guide pillar 142 and oblique guide hole 1411, it removes to drive slider 141, can produce the shearing force at the removal in-process, through the shearing force, can cut the mouth of a river 20 that forms after moulding plastics in runner 13, realize the product automatically cropped mouth of a river, the action is stable during the shearing, can not cut product 30, thereby the quality has been guaranteed. Understandably, the utility model discloses well preceding mold core 111 and back mold core 121 are the mold core that the field is common, and concrete structure is no longer described any more.

In some embodiments, the nozzle shearing mechanism 14 further includes a stopper 143, and the stopper 143 is located at an end of the sliding slot 122, so as to limit a moving distance of the slider 141 when the inclined guide post 142 drives the slider 141 to move in a direction away from the receiving slot 1211. Furthermore, a pressing member 144 is further disposed between both sides of the slider 141 and a groove wall of the sliding groove 122 to fix the slider 141, so that the slider 141 can only move along the horizontal direction of the sliding groove 122.

In some embodiments, the injection mold further includes a thimble assembly 15 for ejecting a product 30 in a product cavity 1212 of the rear mold core 121, the thimble assembly 15 is connected to the rear mold 12 through guide posts 16, in this embodiment, the number of the guide posts 16 is four, and four guide posts 16 are all sleeved with springs 17.

With continued reference to fig. 1 and fig. 2, in particular, the thimble assembly 15 includes a thimble plate 151 and a plurality of thimbles 152 located on the thimble plate 151, the thimble plate 151 is connected to the rear mold 12 through the guide posts 16, and each thimble 152 is located below a product cavity 1212 of the rear mold core 121, so as to eject a product 30 in the product cavity 1212 of the rear mold core 121. Based on the above design, after the front mold 11 and the rear mold 12 are opened, the ejector pins 152 in the ejector pin assembly 15 can eject the product 30 in the product cavity 1212 of the rear mold core 121 under the action of external force.

In some embodiments, the front mold 11 is provided with a sprue bush 18, and the sprue bush 18 penetrates through the front mold core 111 to communicate with the runner 13 when the front mold 11 and the rear mold 12 are closed. Based on this design, when the front mold 11 and the rear mold 12 are closed, the melt is injected from the sprue bush 18.

Understandably, the utility model discloses during injection mold initial use, runner 13 on the slider 141 and the product die cavity 1212 on the back mold core 121 communicate, at first install front mould 11 and back mould 12 on the injection molding machine, the injection molding machine drives back mould 12 and removes with the compound die for front mould 11, after the compound die, oblique guide pillar 142 on the front mould 11 inserts in slider 141's oblique guide hole 1411, the melt pours into from runner cover 18, form product 30 in pouring into the die cavity through runner 13, then the injection molding machine drives back mould 12 and removes with the die sinking, oblique guide pillar 142 still inserts and locates in oblique guide hole 1411 this moment, it removes to drive slider 141 gradually toward the direction of keeping away from storage tank 1211 in the die sinking process, can produce the shearing force in the removal process, through the shearing force, can cut the mouth of a river 20 that forms after moulding plastics in runner 13, make product 30 separate with mouth of a river 20, realize the automatic mouth of cuting of a product, product 30 is ejecting through thimble assembly 15, thereby realize product 30, at last injection mold machine resets, wait for once more.

To sum up, the utility model discloses injection mold has avoided the product to need the artifical problem of cuting the mouth of a river, has improved production efficiency, has promoted product quality, and the mouth of a river shears mechanism simple structure, and the preparation is convenient, and the maintenance cost is low.

The foregoing is considered as illustrative of the preferred embodiments of the invention, and not as limiting the invention in any way. Various equivalent changes and modifications can be made on the basis of the above embodiments by those skilled in the art, and all equivalent changes and modifications within the scope of the claims should fall within the protection scope of the present invention.

Claims

1. An injection mold, comprising:

the front mould is provided with a front mould core;

the rear mold is positioned below the front mold and can move relative to the front mold, a rear mold core is arranged at a position corresponding to the front mold core, a containing groove is formed in the rear mold core, and a sliding groove is formed in the rear mold;

2. The injection mold of claim 1, wherein: the water gap shearing mechanism further comprises a limiting piece, and the limiting piece is located at the end of the sliding groove to limit the moving distance of the sliding block.

3. The injection mold of claim 1, wherein: and a pressing piece is arranged between the two sides of the sliding block and the groove wall of the sliding groove.

4. The injection mold of claim 1, wherein: the inclined angle between the inclined guide post and the front die is 30-60 degrees.

5. The injection mold of claim 1, wherein: the injection mold also comprises an ejector pin component for ejecting a product in a cavity of a rear mold core product, and the ejector pin component is connected with the rear mold through a guide pillar.

6. The injection mold of claim 5, wherein: the guide post is sleeved with a spring.

7. The injection mold of claim 5, wherein: the ejector pin assembly comprises an ejector pin panel and a plurality of ejector pins positioned on the ejector pin panel, the ejector pin panel is connected with the rear die through the guide posts, and each ejector pin is positioned below a product cavity of the rear die core so as to eject a product in the product cavity of the rear die core.

8. The injection mold of claim 1, wherein: and the front mold is provided with a sprue bush, and the sprue bush penetrates through the front mold core to be communicated with the flow channel when the front mold and the rear mold are closed.