CN217319044U

CN217319044U - Improve injection moulding product yielding back moulding-die utensil

Info

Publication number: CN217319044U
Application number: CN202220326132.3U
Authority: CN
Inventors: 喻允斌; 朱乃春; 朱源
Original assignee: Anhui Huihetai Intelligent Technology Co ltd
Current assignee: Anhui Huihetai Intelligent Technology Co ltd
Priority date: 2022-02-17
Filing date: 2022-02-17
Publication date: 2022-08-30
Anticipated expiration: 2032-02-17

Abstract

The utility model provides an improve yielding back moulding-die utensil of injection moulding product, including hot runner plate, install at the female template of hot runner plate lower surface and set up the public template of female template downside, public template downside is equipped with the backup pad, two die feet of backup pad lower surface symmetry fixedly connected with, die foot lower extreme is fixed at the bottom plate upper surface, a plurality of vertical arrangement's guiding hole is evenly seted up to the one side of backup pad towards public template, the upper portion position is equipped with the spring in the guiding hole, the spring lower extreme is equipped with the top column cap, top column head lower extreme fixed connection is on the layer board, the layer board sets up between two die feet, surface symmetry installs two driving pieces that are used for driving layer board rebound under the layer board, the utility model discloses following beneficial effect has: the secondary compression of the product is realized, the consistency of the forming pressure of each place of the finished product is ensured, the investment of later shaping of the product is reduced, the cost is reduced, and the production efficiency is improved.

Description

Improve injection moulding product yielding back moulding-die utensil

Technical Field

The utility model relates to an improve yielding back moulding-die utensil of injection moulding product belongs to mould technical field.

Background

In the field of manufacturing and processing of household appliances and automobile interior and exterior trim parts by IML technology, the requirement of flatness of a product with a display window, which has high requirement on flatness, cannot be met by an injection mold structure, the requirement of flatness of the product with the display window is less than 0.3mm, the mold structure is required to realize high flatness, the technology can be finely adjusted only through an injection molding machine, and the high requirement of a customer on flatness cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an improve the yielding back compression mold of injection moulding product to solve the problem of proposing in the above-mentioned background art.

In order to achieve the above purpose, the present invention is realized by the following technical solution: the utility model provides an improve yielding back moulding-die utensil of injection moulding product, includes hot runner plate, installs at the female die plate of hot runner plate lower surface and sets up the public template board at the female die plate downside, public template board downside is equipped with the backup pad, two die feet of backup pad lower surface symmetry fixedly connected with, die foot lower extreme is fixed at the bottom plate upper surface, a plurality of vertical arrangement's guiding hole is evenly seted up to the one side of backup pad towards public template, the upper portion position is equipped with the spring in the guiding hole, the spring lower extreme is equipped with the top column cap, top column cap slidable mounting is in the guiding hole lower part position, top column cap lower extreme fixed connection is on the layer board, the layer board sets up between two die feet, two driving pieces that are used for driving layer board rebound are installed to layer board lower surface symmetry.

Further, the upper surface of the top column head is provided with a vertically arranged threaded blind hole, a threaded column is connected with the threaded blind hole in a threaded manner, the upper end of the threaded column is fixedly connected with a limiting disc, and the spring is arranged on the upper side of the limiting disc.

Further, the upper end of the spring extends into a limiting hole, and the limiting hole is formed in the lower surface of the male template.

Furthermore, a plurality of positioning columns are uniformly arranged on the upper surface of the supporting plate, the upper ends of the positioning columns are inserted into the positioning holes, and the positioning holes are formed in the lower surface of the male template.

Furthermore, an external thread is processed on the outer surface of the lower end of the positioning column, a threaded blind hole is formed in the position where the positioning column is installed on the supporting plate, and the lower end of the positioning column is in threaded connection with the threaded blind hole.

Further, the driving piece comprises a straight cylinder, the lower end of the straight cylinder is fixed on the upper surface of the lower fixing plate, the outer surface of the lower end of the straight cylinder is provided with an electromagnetic valve used for being connected with an air supply pipeline, a piston is slidably mounted at the upper part of the straight cylinder, the middle part of the upper surface of the piston is fixedly connected with an ejector rod, and the upper end of the ejector rod extends to the upper side of the straight cylinder and is fixedly connected with the supporting plate.

The utility model has the advantages that:

1. in the die closing process, the die locking force is smaller than the elastic force of a spring at the back of the male die plate, after injection is finished, the die locking force is increased and is larger than the elastic force of the spring at the back of the male die plate, then the solenoid valve is controlled to be opened, compressed air in an air supply pipeline enters the straight cylinder after the solenoid valve is opened, a piston in the straight cylinder drives the ejector rod to move upwards, the supporting plate drives the ejector rod head to move upwards and further extrude the spring, the spring forces the male die plate to move the male die core, secondary compression on a product is realized, the forming pressure of each place of the finished product is guaranteed to be consistent, the investment for later shaping of the product is reduced, the cost is reduced, and the production efficiency is improved.

2. The length of adjustment screw thread post in the screw blind hole, and then spacing increase or reduce of spacing dish and top column cap to when the layer board drove the top column cap and removes to the top, the spring was changed by extruded degree, realizes adjusting the purpose of spring to public template effort size as required.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural view of a rear pressing mold for improving the deformation of an injection molding product of the present invention;

FIG. 2 is a schematic view of the assembly of the supporting plate, the supporting plate and the male mold plate in the rear-pressing mold for improving the deformation of the injection molding product of the present invention;

FIG. 3 is a schematic structural view of a driving member in a rear pressing mold for improving the deformation of an injection molding product according to the present invention;

FIG. 4 is a perspective view of a top column head in the rear pressing mold for improving the deformation of the injection molding product of the present invention;

in the figure: 1-hot runner plate, 2-female template, 3-male template, 4-supporting plate, 5-mould foot, 6-lower fixing plate, 7-supporting plate, 8-guide hole, 9-limit hole, 10-spring, 11-limit disc, 12-threaded column, 13-top column cap, 14-top rod, 15-straight cylinder, 16-electromagnetic valve, 17-positioning column, 18-positioning hole, 19-piston and 20-threaded blind hole.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 1, the present invention provides a technical solution: the utility model provides an improve easy deformable back moulding-die utensil of injection moulding product, includes hot runner plate 1, installs at the female die plate 2 of 1 lower surface of hot runner plate and sets up the public template 3 in female die plate 2 downside, and 3 downside of public template are equipped with backup pad 4, and two feet of face symmetry fixedly connected with 5 under the

backup pad

4, 5 lower extremes of feet of mould are fixed at 6 upper surfaces of bottom plate, and

bottom plate

6 and 5 effects that play backup pad 4 jointly of feet of mould.

Referring to fig. 1 and 2, a plurality of positioning columns 17 are uniformly installed on the upper surface of the supporting plate 4, the upper ends of the positioning columns 17 are inserted into the positioning holes 18, the positioning holes 18 are formed in the lower surface of the male template 3, external threads are machined on the outer surface of the lower end of each positioning column 17, threaded blind holes 20 are formed in the positions, where the positioning columns 17 are installed, of the supporting plate 4, the lower ends of the positioning columns 17 are in threaded connection in the threaded blind holes 20, assembling of the positioning columns 17 and the supporting plate 4 is completed, the positioning columns 17 are matched with the positioning holes 18, and the effect of limiting the relative positions of the supporting plate 4 and the male template 3 is achieved.

Referring to fig. 2 and 3, one surface of the supporting plate 4 facing the core plate 3 is uniformly provided with a plurality of vertically arranged guide holes 8, a spring 10 is arranged at the upper position in each guide hole 8, a top column head 13 is arranged at the lower end of each spring 10, the top column head 13 is slidably mounted at the lower position in each guide hole 8, the lower end of each top column head 13 is fixedly connected to a supporting plate 7, the supporting plate 7 is arranged between two mold legs 5, two straight cylinders 15 are arranged at the lower side of the supporting plate 7, the lower ends of the straight cylinders 15 are fixed on the upper surface of the lower fixing plate 6, electromagnetic valves 16 for connecting air supply pipelines are mounted on the outer surfaces of the lower ends of the straight cylinders 15, pistons 19 are slidably mounted at the upper positions in the straight cylinders 15, ejector rods 14 are fixedly connected to the middle positions of the upper surfaces of the pistons 19, the upper ends of the ejector rods 14 extend to the upper sides of the straight cylinders 15 and are fixedly connected with the supporting plates 7, in the mold closing process, the mold clamping force is smaller than the elastic force of the springs 10 at the back surface of the core plate 3, after the injection is completed, increase the clamping force, make the clamping force be greater than the elasticity of 3 back springs 10 of core plate, then control solenoid valve 16 opens, solenoid valve 16 opens the back, compressed air in the air supply line gets into in the straight section of thick bamboo 15, piston 19 in the straight section of thick bamboo 15 drives ejector pin 14 and upwards removes this moment, thereby layer board 7 drives top column cap 13 rebound and further extrudees spring 10, spring 10 forces core plate 3 to drive the removal of core, realize the secondary compression to the product, guarantee that finished local forming pressure keeps unanimous in each place, the input of having reduced the plastic of this type of product later stage, the cost is reduced, and the production efficiency is improved.

Referring to fig. 2 and 4, threaded blind hole 20 of vertical arrangement is seted up to fore-set 13 upper surface, threaded blind hole 20 female connection has threaded post 12, the spacing dish 11 of threaded post 12 upper end fixedly connected with, spring 10 sets up at spacing dish 11 upside, spring 10 upper end extends to in the spacing downthehole 9, spacing hole 9 is seted up at public template 3 lower surface, spacing hole 9 realizes the restriction to spring 10 upper end position, adjust the length of threaded post 12 in threaded blind hole 20, and then spacing dish 11 increases or reduces with fore-set 13's interval, thereby layer board 7 drives the fore-set head 13 and removes when the top post head is topmost, spring 10 is changed by the extruded degree, realize adjusting the purpose of spring 10 to public template 3 effort size as required.

The specific implementation mode is as follows: adjusting the length of the threaded column 12 in the threaded blind hole 20, and further increasing or decreasing the distance between the limiting disc 11 and the top column head 13, so that when the supporting plate 7 drives the top column head 13 to move to the uppermost side, the extruded degree of the spring 10 is changed, and the purpose of adjusting the acting force of the spring 10 on the male template 3 according to the requirement is realized, in the mold closing process, the mold locking force is smaller than the elastic force of the spring 10 on the back of the male template 3, after the injection is finished, the mold locking force is increased to be larger than the elastic force of the spring 10 on the back of the male template 3, then the electromagnetic valve 16 is controlled to be opened, after the electromagnetic valve 16 is opened, compressed air in an air supply pipeline enters the straight cylinder 15, at the moment, the piston 19 in the straight cylinder 15 drives the ejector rod 14 to move upwards, so that the supporting plate 7 drives the top column head 13 to move upwards and further extrude the spring 10, the spring 10 forces the male template 3 to drive the male mold core to move, and realize secondary compression of the product, the forming pressure of each place of the finished product is kept consistent, the investment of later shaping of the product is reduced, the cost is reduced, and the production efficiency is improved.

Although the present description is described in terms of embodiments, not every embodiment includes only a single embodiment, and such description is for clarity only, and those skilled in the art should be able to integrate the description as a whole, and the embodiments can be appropriately combined to form other embodiments as will be understood by those skilled in the art.

Claims

1. The utility model provides an improve injection moulding product yielding back compression mold, includes hot runner plate (1), installs female template (2) and male template (3) of setting in female template (2) downside at hot runner plate (1) lower surface, its characterized in that: the utility model discloses a supporting plate, including public template (3), backup pad (3), two feet of surface symmetry fixedly connected with (5) under backup pad (4), foot of the mould (5) lower extreme is fixed at bottom plate (6) upper surface, a plurality of vertical arrangement's guiding hole (8) are evenly seted up towards the one side of public template (3) in backup pad (4), upper portion position is equipped with spring (10) in guiding hole (8), spring (10) lower extreme is equipped with top column cap (13), top column cap (13) slidable mounting is in guiding hole (8) lower part position, top column cap (13) lower extreme fixed connection is on layer board (7), layer board (7) set up between two feet of the mould (5), two driving pieces that are used for driving layer board (7) rebound are installed to surface symmetry under layer board (7).

2. A back pressure mold for improving the easy deformation of an injection molding product according to claim 1, wherein: the top column cap (13) upper surface is seted up vertical arrangement's screw thread blind hole (20), screw thread blind hole (20) female connection has screw thread post (12), spacing dish (11) of screw thread post (12) upper end fixedly connected with, spring (10) set up in spacing dish (11) upside.

3. A back pressure mold for improving the easy deformation of an injection molding product according to claim 1, wherein: the upper end of the spring (10) extends into the limiting hole (9), and the limiting hole (9) is formed in the lower surface of the male template (3).

4. A back pressure mold for improving the easy deformation of an injection molding product according to claim 1, wherein: a plurality of positioning columns (17) are uniformly arranged on the upper surface of the supporting plate (4), the upper ends of the positioning columns (17) are inserted into the positioning holes (18), and the positioning holes (18) are formed in the lower surface of the male template (3).

5. An improved easy deformable back pressure mould for injection moulding products according to claim 4, characterized in that: the outer surface of the lower end of the positioning column (17) is provided with an external thread, a threaded blind hole (20) is formed in the position where the positioning column (17) is installed on the supporting plate (4), and the lower end of the positioning column (17) is connected into the threaded blind hole (20) in a threaded mode.

6. A back pressure mold for improving the easy deformation of an injection molding product according to claim 1, wherein: the driving piece includes straight section of thick bamboo (15), straight section of thick bamboo (15) lower extreme is fixed at bottom plate (6) upper surface, straight section of thick bamboo (15) lower extreme surface mounting has solenoid valve (16) that are used for connecting the air supply line, upper portion position slidable mounting has piston (19) in straight section of thick bamboo (15), piston (19) upper surface middle part fixedly connected with ejector pin (14), ejector pin (14) upper end extend to straight section of thick bamboo (15) upside and with layer board (7) fixed connection.