CN110900982A

CN110900982A - Superimposed molding injection mold

Info

Publication number: CN110900982A
Application number: CN201911167654.2A
Authority: CN
Inventors: 杨向荣
Original assignee: Hunan Liansu Science And Technology Co Ltd
Current assignee: Hunan Liansu Science And Technology Co Ltd
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-03-24

Abstract

The invention relates to the technical field of injection molds, in particular to an injection mold formed in an overlapping mode. Including sliding connection's front mould, sliding seat and back mould in proper order, the front mould in be equipped with first core, the back mould in be equipped with the second core, the sliding seat in be equipped with the formula runner of hiding that holds the chamber and communicate and hold the chamber, first core and second core insert respectively hold the chamber around both ends and with hold and form first die cavity and second die cavity between the intracavity wall. The product is arranged and overlapped into two layers, so that the production capacity of the product is doubled under the condition of not increasing the length and the width of the die.

Description

Superimposed molding injection mold

Technical Field

The invention relates to the technical field of injection molds, in particular to an injection mold formed in an overlapping mode.

Background

The existing common mould structure is generally a single-layer structure, and the number of the produced products on one parting surface is different from that of the produced products in 8 cavities or 12 cavities. As disclosed in publication No.: CN207140244U discloses an automatic thread-removing die structure with a threaded cover for plastic parts, which comprises a fixed die fixing plate and a movable die fixing plate, wherein the lower part of the fixed die fixing plate is provided with a fixed die plate, and a plurality of containing cavities for molding the plastic parts are arranged in the fixed die plate; the movable mould fixing plate is fixedly connected with a cushion block, a bearing plate is fixedly arranged on the cushion block, a core equal to the number of the cavities is installed on the bearing plate, threads are arranged at the head of the core and used for forming internal threads of a plastic part, the core is driven by a rotary driving mechanism to synchronously rotate so as to realize demoulding, a movable mould plate is fixedly arranged on the bearing plate, a push plate capable of axially moving synchronously with a product is arranged on the movable mould plate, a rotation stopping mechanism used for limiting the plastic part to rotate is arranged on the push plate, and a limiting device used for limiting the moving distance of the push plate is further arranged on the bearing plate. In this application, in order to improve the productivity, the improvement of productivity can be realized only by increasing the number of the cavities, and the increase of the number of the cavities means that the length and the width of the mold need to be increased and the energy consumption of the injection molding machine can be increased, so that the design cost and the energy consumption of one mold with multiple cavities are high.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide an injection mold for superposition molding, which arranges and superposes products into two layers so as to double the product production under the condition of not increasing the length and width of the mold.

In order to solve the technical problems, the invention adopts the technical scheme that: the utility model provides an injection mold who superposes shaping, includes sliding connection's front mould, sliding seat and back mould in proper order, the front mould in be equipped with first core, the back mould in be equipped with the second core, the sliding seat in be equipped with the formula runner of hiding that holds the chamber and communicate and hold the chamber, first core and second core insert respectively and hold the chamber around both ends and with hold and form first die cavity and second die cavity between the intracavity wall.

In this device, advance gluey through the formula runner of hiding behind front mould and the back mould compound die to in first die cavity and second die cavity injection moulding product, two same products of two die cavities shaping respectively need not additionally to increase the length and width of mould and can improve the product output of one time. After the product is formed, the submarine gate is broken by force, two groups of products and the whole flow channel are all remained in the sliding seat, and the separated gap of the sliding seat is larger than the width of the product, so that the two groups of products arranged in the sliding seat can smoothly fall off, and a production period is completed.

Further, the formula runner of hiding include first minute runner and second minute runner, first core in be equipped with the first accommodation hole that matches with first minute runner, second core in be equipped with the second accommodation hole that matches with the second minute runner, first minute runner slide and set up in first accommodation hole, the second minute runner slide and set up in the second accommodation hole, first accommodation hole and first die cavity intercommunication, second accommodation hole and second die cavity intercommunication. After die assembly, the first branch gate and the second branch gate are respectively arranged in the first accommodating hole and the second accommodating hole, and glue is injected into the first cavity and the second cavity from the side walls of the first core and the second core. When demoulding, the front mould is separated from the sliding seat, the first branch sprue arranged in the first mould core is broken by force, the two groups of products and the whole runner are all left in the sliding seat and the rear mould, then the sliding seat is separated from the rear mould, the second branch sprue arranged in the second mould core is broken by force at the moment, and the two groups of products are finally and completely left in the sliding seat, so that the products and the runner system are completely separated and fall off smoothly.

Furthermore, at least 2 first cores are arranged in the front mold in parallel, and the number of the cavities and the number of the second cores are the same as that of the first cores. The increase in the production amount of the product is achieved by increasing the number of set cores.

Furthermore, the sliding seat is formed by connecting a push plate and a sliding block, the front die is provided with a first cavity part matched with the sliding block, and the sliding block is arranged in the first cavity part in a sliding mode. The front die and the sliding seat are connected, the rear sliding block is sleeved in the first cavity part, and the first mold core is inserted into the containing cavity.

The die further comprises bent pins, the two bent pins are symmetrically arranged on the rear die, one end of each bent pin is fixedly connected with the rear die, a guide groove is formed in the sliding block, and the bent pins are in sliding fit with the guide grooves. The bent pin plays a guiding role, and the sliding seat is released along the direction of the bent pin during demoulding.

Furthermore, the push plate is provided with a second cavity part communicated with the guide groove. The second cavity part can be used for reserving position allowance for the bent pin when the sliding seat slides to perform demoulding or mold closing, so that the bent pin is prevented from being clamped in the mold closing or demoulding process.

Furthermore, the first cavity and the second cavity are identical in structure. Thus doubling the product throughput.

Furthermore, first die cavity and second die cavity set up in the slider, the up end of slider be first die joint face, slider under the terminal surface be the second die joint face. The two parting surfaces are respectively one end surface of two products.

Furthermore, the submarine gate is arranged in the slide block and obliquely enters the first cavity and the second cavity respectively.

Compared with the prior art, the invention has the beneficial effects that: the mould arranges the product into two layers, so that the production capacity of the product is doubled without increasing the length and the width of the mould, meanwhile, the product can be produced in a relatively small injection moulding machine, the energy consumption is reduced, and the production efficiency is improved.

Drawings

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

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is a cross-sectional view of FIG. 1;

FIG. 4 is a schematic structural view of the demolding of the front mold in the present invention;

FIG. 5 is a schematic structural view of the front mold and the sliding seat demolding in the present invention;

FIG. 6 is a schematic structural view of a front mold according to the present invention;

FIG. 7 is a schematic view of the sliding seat of the present invention;

fig. 8 is a schematic structural view of a rear mold in the present invention.

Detailed Description

The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.

Example (b):

as shown in fig. 3, an injection mold for superposition molding comprises a front mold 10, a sliding seat 20 and a rear mold 30 which are sequentially connected in a sliding manner, specifically, the sliding seat 20 is formed by connecting a push plate 202 and a slider 201, the front mold 10 is provided with a first cavity portion 102 matched with the slider 201, the slider 201 is arranged in the first cavity portion 102 in a sliding manner, and the slider 201 is sleeved in the first cavity portion 102 and can slide along the direction of the first cavity portion 102. The die further comprises bent pins 40, the two bent pins 40 are symmetrically arranged on the rear die 30, one ends of the bent pins 40 are fixedly connected with the rear die 30, guide grooves 2011 are formed in the sliding blocks 201, and the bent pins 40 are in sliding fit with the guide grooves 2011. The bending pin 40 plays a guiding role, and the sliding seat 20 is pulled out along the direction of the bending pin 40 during demoulding. The push plate 202 is provided with a second chamber 2021 communicating with the guide groove 2011. The second cavity 2021 is configured to allow a position margin for the bending pin 40 when the sliding seat 20 slides to perform mold releasing or mold closing, so as to prevent the bending pin 40 from being jammed during mold closing or mold releasing.

In addition, in the present apparatus, as shown in fig. 6 and 8, a first core 101 is disposed in the front mold 10, a second core 301 is disposed in the rear mold 30, a cavity 203 is disposed in the slider 201, the first core 101 and the second core 301 are respectively inserted into front and rear ends of the cavity 203 and respectively form a first cavity 2031 and a second cavity 2032 with inner walls of the cavity 203, and the first cavity 2031 and the second cavity 2032 have the same structure to produce the same product.

As shown in fig. 5 and 7, a submarine gate 204 communicated with the cavity 203, specifically, the submarine gate 204 disposed in the slider 201, is disposed in the sliding seat 20, the submarine gate 204 includes a first branch gate 2041 and a second branch gate 2042, a first receiving hole 1011 matching with the first branch gate 2041 is disposed in the first core 101, a second receiving hole 3011 matching with the second branch gate 2042 is disposed in the second core 301, the first branch gate 2041 is slidably disposed in the first receiving hole 1011, the second branch gate 2042 is slidably disposed in the second receiving hole 3011, the first receiving hole is communicated with the first cavity 2031, and the second receiving hole 3011 is communicated with the second cavity 2032. After the mold clamping, the first branch gate 2041 and the second branch gate 2042 are respectively placed in the first accommodating hole 1011 and the second accommodating hole 3011, and glue is injected from the side walls of the first core 101 and the second core 301 to the first cavity 2031 and the second cavity 2032.

In this embodiment, the produced product is characterized in that the through hole is a circular member, the outer circumferential surface is threaded, the first cavity 2031 and the second cavity 2032 are symmetrically arranged at two ends of the cavity 203, the upper end surface of the slider 201 is a first parting surface, and the lower end surface of the slider 201 is a second parting surface. The two parting surfaces are respectively one end surface of two products.

In addition, in the present apparatus, in order to improve productivity, at least 2 first cores 101 are arranged in parallel in the front mold 10, and the number of the cavities 203 and the number of the second cores 301 are the same as the number of the first cores 101. The increase in the production amount of the product is achieved by increasing the number of set cores. As shown in fig. 1 and 2, in the present embodiment, 6 first cores 101, 6 second cores 301, 6 cavities 203, and corresponding submarine gates 204 are provided.

In the present apparatus, as shown in fig. 3, after the front mold 10 and the rear mold 30 are closed, glue is injected through the submarine gate 204, and the product is injection molded in the first cavity 2031 and the second cavity 2032, and the two cavities respectively mold two identical products, so that the product yield can be doubled without additionally increasing the length and width of the mold. When the product is demolded, as shown in fig. 4, the front mold 10 is separated from the sliding seat 20, the first gate 2041 disposed in the first mold core 101 is broken by force, the two groups of products and the whole runner are all left in the sliding seat 20 and the rear mold 30, then as shown in fig. 5, the sliding seat 20 is separated from the rear mold 30, the second gate 2042 disposed in the second mold core 301 is broken by force, and the two groups of products are all left in the sliding seat 20 finally, so that the products and the runner system are completely separated and fall off smoothly. The device arranges and superposes the product into an upper layer and a lower layer through the ingenious design of the flow channel and the glue inlet, so that the product production capacity is doubled without increasing the length and the width of the die, meanwhile, the energy consumption is reduced, and the production efficiency is improved.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides an injection mold who superposes shaping, its characterized in that, including in proper order sliding connection's front mould (10), sliding seat (20) and back mould (30), front mould (10) in be equipped with first core (101), back mould (30) in be equipped with second core (301), sliding seat (20) in be equipped with latent formula runner (204) that hold chamber (203) and intercommunication appearance chamber (203), first core (101) and second core (301) insert respectively the front and back both ends that hold chamber (203) and hold and form first die cavity (2031) and second die cavity (2032) between chamber (203) inner wall.

2. The injection mold of claim 1, wherein the submarine gate (204) comprises a first branch gate (2041) and a second branch gate (2042), a first receiving hole (1011) matching with the first branch gate (2041) is formed in the first core (101), a second receiving hole (3011) matching with the second branch gate (2042) is formed in the second core (301), the first branch gate (2041) is slidably disposed in the first receiving hole (1011), the second branch gate (2042) is slidably disposed in the second receiving hole (3011), the first receiving hole (1011) is communicated with the first cavity (2031), and the second receiving hole (3011) is communicated with the second cavity (2032).

3. An injection mould according to claim 1, characterised in that at least 2 first cores (101) are arranged in parallel in the front mould (10), and the number of cavities (203) and second cores (301) is the same as the number of first cores (101).

4. An injection mould according to claim 1, characterised in that the slide (20) is formed by connecting a push plate (202) and a slide (201), the front mould (10) is provided with a first cavity (102) matching with the slide (201), and the slide (201) is slidably arranged in the first cavity (102).

5. The overlapping injection mold according to claim 4, further comprising two bending pins (40), wherein the two bending pins (40) are symmetrically arranged on the rear mold (30), one end of each bending pin (40) is fixedly connected with the rear mold (30), a guide groove (2011) is arranged in the sliding block (201), and the bending pins (40) are in sliding fit with the guide groove (2011).

6. An injection mould according to claim 5, characterised in that the push plate (202) is provided with a second cavity (2021) communicating with the guide groove (2011).

7. An overmolding injection mold according to claim 1, characterized in that the first cavity (2031) and the second cavity (2032) are of the same configuration.

8. An injection mould according to claim 1, characterised in that the first cavity (2031) and the second cavity (2032) are arranged in a slide (201), the upper end surface of the slide (201) is a first parting surface, and the lower end surface of the slide (201) is a second parting surface.

9. An injection mould according to claim 8, characterised in that the submarine gate (204) is arranged in the slide (201), and the submarine gate (204) is respectively inclined into the first cavity (2031) and the second cavity (2032).