CN210389942U

CN210389942U - Injection mold is used in production of porous product of thin wall

Info

Publication number: CN210389942U
Application number: CN201921069573.4U
Authority: CN
Inventors: 何来
Original assignee: Creative Plastic Industrial Suzhou Co ltd
Current assignee: Creative Plastic Industrial Suzhou Co ltd
Priority date: 2019-07-10
Filing date: 2019-07-10
Publication date: 2020-04-24
Anticipated expiration: 2029-07-10

Abstract

The utility model discloses an injection mold for producing thin-wall porous products, which comprises a plurality of groups of core-pulling components, wherein each core-pulling component comprises an inclined guide pillar, a shovel base, a first slide block and a second slide block; first slider is equipped with oblique guide hole, first slider lateral part is equipped with inlays the needle mounting panel, second slider top is equipped with and link up the spout, it is equipped with spacing spout respectively to link up the spout both sides, it is equipped with the movable block of sliding connection in lining up the spout to inlay needle mounting panel top, the movable block both sides are equipped with respectively with spacing spout sliding connection's limit stop, it is equipped with the inlaying needle that runs through the second slider to inlay needle mounting panel lateral part, second slider lateral part is equipped with the ejector pin that runs through and inlays needle mounting panel and first slider, the shovel base includes first inclined plane and first vertical plane, first slider is equipped with the second inclined plane that corresponds with first inclined plane, the ejector pin is equipped with the vertical plane of second that corresponds with first vertical plane. The utility model relates to an injection mold is used in production of thin wall porous product, the effectual product of having avoided glues on the inlay needle to improve product quality.

Description

Injection mold is used in production of porous product of thin wall

Technical Field

The utility model relates to an injection mold is used in production of porous product of thin wall.

Background

An injection mold is a tool for producing plastic products; and is also a tool for giving the plastic product complete structure and accurate dimension. Injection molding is a process used to mass produce parts of some complex shapes. Specifically, the plastic melted by heating is injected into a mold cavity from an injection molding machine at high pressure, and a formed product is obtained after cooling and solidification. At present, a mechanical or hydraulic core-pulling mechanism is generally adopted in the external core-pulling of the injection mould, and the demoulding is finished by one-step core-pulling. However, because some products lateral wall have a plurality of round holes, need come these round holes of shaping through setting up the inlay needle, if adopt once to force to loose core and cause the product to glue on the inlay needle easily, lead to product quality impaired, the rejection rate increases.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an injection mold is used in production of porous product of thin wall, its is rational in infrastructure, and through the mode that adopts the secondary to loose core, the effectual product of having avoided glues on the inlay needle to improve product quality.

In order to achieve the purpose, the technical scheme of the utility model is to design an injection mold for producing thin-wall porous products, which comprises an upper mold and a lower mold which are matched with each other, wherein the upper mold and the lower mold are matched to enclose a cavity for forming the products, and the products comprise a circle of side wall which is in an elliptical shape and a plurality of round holes which are arranged on the side wall; the injection mold also comprises a plurality of groups of core-pulling components arranged between the upper mold and the lower mold, the plurality of groups of core-pulling components are distributed on the periphery of a product, and each group of core-pulling components comprises an inclined guide pillar and a shovel base which are arranged on the upper mold, and a first sliding block and a second sliding block which are arranged on the lower mold; the first sliding block is positioned between the second sliding block and the shovel base, the first sliding block is provided with an inclined guide hole matched with an inclined guide post, the side surface of the first sliding block facing the second sliding block is fixedly provided with an embedded needle mounting plate, the top of the second sliding block is provided with a through chute, the extending direction of the through chute is consistent with the sliding direction of the second sliding block, two sides of the through chute are respectively provided with a limit chute communicated with the through chute, the top of the embedded needle mounting plate is fixedly connected with a movable block, the movable block is slidably connected in the through chute, two sides of the movable block are respectively provided with a limit stop block slidably connected with the limit chute, the embedded needle mounting plate is provided with a plurality of embedded needles which horizontally penetrate through the second sliding block, the embedded needles are used for forming round holes on a product, the second sliding block is provided with a plurality of through holes for the embedded needles to penetrate one by one to one, and the bottom of the side surface of the second sliding block, the other end of this ejector pin runs through in proper order along the horizontal direction and inlays needle mounting panel and first slider, it all is equipped with the through-hole that supplies the ejector pin to run through to inlay needle mounting panel and first slider, the shovel basal plane is including first inclined plane and the first vertical plane that from top to bottom sets gradually to the side of first slider, first slider is equipped with the second inclined plane that corresponds with first inclined plane, the one end that the second slider was kept away from to the ejector pin is equipped with the vertical plane of second that corresponds with first vertical plane.

Preferably, the bottom of the first vertical plane is provided with a first avoidance inclined plane, and the top of the second vertical plane is provided with a second avoidance inclined plane.

Preferably, the first inclined plane is provided with a wear-resistant block mounting groove, and a wear-resistant block is mounted in the wear-resistant block mounting groove.

Preferably, the core pulling assembly further comprises an inclined guide pillar fixing block, and the inclined guide pillar is mounted on the upper die through the inclined guide pillar fixing block.

Preferably, the number of the core pulling assemblies is eight.

The utility model discloses a theory of operation does: when the upper die and the lower die are assembled, the oblique guide post is inserted into the oblique guide hole of the first sliding block, the shovel base is matched with and locks the first sliding block and the second sliding block through the first inclined surface and the second inclined surface, and the insert pin on the insert pin mounting plate penetrates through the second sliding block and extends into the cavity to participate in the forming of a product. After the die opening of the upper die and the lower die is completed, the inclined guide post moves upwards under the driving of the upper die so as to drive the first slide block to retreat, the shovel base can be matched with and lock the ejector rod through the first vertical plane, so the second slide block is fixed, the forming surface of the second slide block props against a product, the first slide block drives the insert pin mounting plate and the insert pin to retreat so that the insert pin is drawn out of a round hole of the product, the second slide block props against the product, the product can be prevented from being stuck on the insert pin and retreating together with the insert pin, in the process of retreating the insert pin mounting plate, the movable block is driven to slide in the through chute, meanwhile, the movable block drives the limit stop block to slide in the limit chute, when the sliding of the limit stop block is limited by the limit chute, the first vertical plane of the shovel base is separated from the second vertical plane of the ejector rod, at the moment, the core pulling is completed once, and then, because the shovel base and the ejector rod are separated, the first sliding block drives the insert pin mounting plate to retreat, the insert pin mounting plate drives the second sliding block to retreat through the limit stop block on the movable block, the forming surface of the second sliding block is separated from a product, and secondary core pulling is completed.

The utility model has the advantages that: the utility model provides an injection mold is used in production of porous product of thin wall, its is rational in infrastructure, through adopting the mode of secondary loose core, has effectually avoided the product to glue on inlaying the needle to improve product quality.

Drawings

Fig. 1 is a schematic diagram of the present invention.

Fig. 2 is the schematic view of the core pulling assembly in the mold closing process of the present invention.

Fig. 3 is the schematic view of the central core pulling assembly of the present invention when completing one core pulling.

Fig. 4 is the schematic diagram of the middle core-pulling assembly when secondary core-pulling is completed.

Fig. 5 is a schematic top view of fig. 3.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

The utility model discloses the technical scheme who specifically implements is:

as shown in fig. 1 to 5, an injection mold for producing a thin-wall porous product comprises an upper mold 1 and a lower mold 1 which are matched with each other, wherein the upper mold 1 and the lower mold 1 are matched to enclose a cavity for forming a product 2, and the product 2 comprises a circle of side wall which is in an oval shape and a plurality of round holes which are arranged on the side wall; the injection mold further comprises a plurality of groups of core-pulling assemblies 3 arranged between the upper mold and the lower mold 1, the plurality of groups of core-pulling assemblies 3 are distributed on the periphery of the product 2, and each group of core-pulling assemblies 3 comprises an inclined guide pillar 4 and a shovel base 5 which are arranged on the upper mold, and a first sliding block 6 and a second sliding block 7 which are arranged on the lower mold 1; the first sliding block 6 is positioned between the second sliding block 7 and the shovel base 5, the first sliding block 6 is provided with an inclined guide hole 8 matched with the inclined guide post 4, the side surface of the first sliding block 6 facing the second sliding block 7 is fixed with an insert pin mounting plate 9, the top of the second sliding block 7 is provided with a through chute 10, the extending direction of the through chute 10 is consistent with the sliding direction of the second sliding block 7, the two sides of the through chute 10 are respectively provided with a limit chute 11 communicated with the through chute 10, the top of the insert pin mounting plate 9 is fixedly connected with a movable block 12, the movable block 12 is connected in the through chute 10 in a sliding manner, the two sides of the movable block 12 are respectively provided with a limit stop 13 connected with the limit chute 11 in a sliding manner, the insert pin mounting plate 9 is provided with a plurality of insert pins 14 penetrating through the second sliding block 7 along the horizontal direction, the insert pins 14 are used for forming a round hole on a product 2, the second sliding block 7 is provided with a plurality of through holes for, this second slider 7 is towards side bottom fixedly connected with ejector pin 15 of inlaying needle mounting panel 9, and the other end of this ejector pin 15 runs through in proper order along the horizontal direction and inlays needle mounting panel 9 and first slider 6, it all is equipped with the through-hole that supplies ejector pin 15 to run through to inlay needle mounting panel 9 and first slider 6, shovel base 5 is including first inclined plane 16 and the first vertical plane 17 that from top to bottom sets gradually towards the side of first slider 6, first slider 6 is equipped with the second inclined plane 18 that corresponds with first inclined plane 16, the one end that second slider 7 was kept away from to ejector pin 15 is equipped with the vertical plane 19 of second that corresponds with first vertical plane 17.

A first avoidance inclined surface 20 is provided at the bottom of the first vertical plane 17, and a second avoidance inclined surface 21 is provided at the top of the second vertical plane 19.

The first inclined plane 16 is provided with a wear-resistant block mounting groove, and a wear-resistant block is mounted in the wear-resistant block mounting groove.

The core pulling assembly further comprises an inclined guide post fixing block 22, and the inclined guide post 4 is mounted on the upper die through the inclined guide post fixing block 22.

The number of the core-pulling assemblies 3 is eight.

The utility model discloses a theory of operation does: when the upper die and the lower die 1 are assembled, the inclined guide post 4 is inserted into the inclined guide hole 8 of the first slide block 6, the shovel base 5 is matched with the second inclined surface 18 through the first inclined surface 16 to lock the first slide block 6 and the second slide block 7, and the insert pin 14 on the insert pin mounting plate 9 penetrates through the second slide block 7 and extends into the die cavity to participate in the forming of the product 2. After the die opening of the upper die and the lower die is finished, the inclined guide post 4 moves upwards under the driving of the upper die so as to drive the first slide block 6 to retreat, the shovel base 5 can be matched with a second vertical plane 19 of the ejector rod 15 through the first vertical plane 17 to lock the ejector rod 15, so the second slide block 7 is not moved, the forming surface of the second slide block 7 props against the product 2, the first slide block 6 drives the insert pin mounting plate 9 and the insert pin 14 to retreat so that the insert pin 14 is drawn out of a round hole of the product 2, the second slide block 7 props against the product 2, so the product 2 can be prevented from being stuck on the insert pin 14 and retreating together with the insert pin 14, in the process of retreating the insert pin mounting plate 9, the movable block 12 is driven to slide in the through chute 10, meanwhile, the movable block 12 drives the limit stop block 13 to slide in the limit chute 11, until the slide of the limit stop block 13 is limited by the limit chute 11, the first vertical plane 17 of the shovel base 5 is separated from the second vertical plane, at the moment, once core pulling is completed, then the inclined guide post 4 continues to move upwards, and as the shovel base 5 and the ejector rod 15 are separated, the first slide block 6 drives the insert pin mounting plate 9 to retreat, and the insert pin mounting plate 9 drives the second slide block 7 to retreat through the limit stop 13 on the movable block 12, so that the forming surface of the second slide block 7 is separated from the product 2, and secondary core pulling is completed.

The utility model has the advantages that: the injection mold for producing the thin-wall porous product is reasonable in structure, and effectively prevents the product 2 from being stuck on the insert pin 14 by adopting a secondary core pulling mode, so that the product quality is improved.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. An injection mold for producing a thin-wall porous product is characterized by comprising an upper mold and a lower mold which are matched with each other, wherein the upper mold and the lower mold are matched to enclose a cavity for forming the product, and the product comprises a circle of side wall in an oval shape and a plurality of round holes arranged on the side wall; the injection mold also comprises a plurality of groups of core-pulling components arranged between the upper mold and the lower mold, the plurality of groups of core-pulling components are distributed on the periphery of a product, and each group of core-pulling components comprises an inclined guide pillar and a shovel base which are arranged on the upper mold, and a first sliding block and a second sliding block which are arranged on the lower mold; the first sliding block is positioned between the second sliding block and the shovel base, the first sliding block is provided with an inclined guide hole matched with an inclined guide post, the side surface of the first sliding block facing the second sliding block is fixedly provided with an embedded needle mounting plate, the top of the second sliding block is provided with a through chute, the extending direction of the through chute is consistent with the sliding direction of the second sliding block, two sides of the through chute are respectively provided with a limit chute communicated with the through chute, the top of the embedded needle mounting plate is fixedly connected with a movable block, the movable block is slidably connected in the through chute, two sides of the movable block are respectively provided with a limit stop block slidably connected with the limit chute, the embedded needle mounting plate is provided with a plurality of embedded needles which horizontally penetrate through the second sliding block, the embedded needles are used for forming round holes on a product, the second sliding block is provided with a plurality of through holes for the embedded needles to penetrate one by one to one, and the bottom of the side surface of the second sliding block, the other end of this ejector pin runs through in proper order along the horizontal direction and inlays needle mounting panel and first slider, it all is equipped with the through-hole that supplies the ejector pin to run through to inlay needle mounting panel and first slider, the shovel basal plane is including first inclined plane and the first vertical plane that from top to bottom sets gradually to the side of first slider, first slider is equipped with the second inclined plane that corresponds with first inclined plane, the one end that the second slider was kept away from to the ejector pin is equipped with the vertical plane of second that corresponds with first vertical plane.

2. The injection mold for producing the thin-walled porous product as claimed in claim 1, wherein a first avoiding inclined surface is provided at the bottom of the first vertical plane, and a second avoiding inclined surface is provided at the top of the second vertical plane.

3. The injection mold for producing the thin-walled porous product as claimed in claim 2, wherein the first inclined surface is provided with a wear-resistant block mounting groove, and a wear-resistant block is mounted in the wear-resistant block mounting groove.

4. The injection mold for producing the thin-walled porous product according to claim 3, wherein the core pulling assembly further comprises an inclined guide pillar fixing block, and the inclined guide pillar is mounted on the upper mold through the inclined guide pillar fixing block.

5. An injection mold for producing thin-walled porous products according to claim 4, wherein the number of the core pulling assemblies is eight.