Injection mold for large-size sheets

Abstract

The utility model relates to the technical field of injection molds, and discloses an injection mold for large-size sheets, which comprises a lower fixing plate and an upper fixing plate, a supporting plate is fixedly mounted on the upper surface of the lower fixing plate, the upper fixing plate is fixedly mounted at one end of the supporting plate, and a plate B is fixedly mounted on the upper surface of the supporting plate. A plate A is fixedly installed on the upper surface of the plate B, the plate A is connected with the lower surface of an upper fixing plate, a glue opening device is installed in the upper fixing plate and extends to the position between the plate A and the plate B, a cost lowering mechanism is fixedly installed on the upper surface of a lower fixing plate, and the supporting end of the cost lowering mechanism is connected with the lower surface of the plate B. The ejector plate supporting rod is installed between the ejector plate and the lower fixing plate, the ejector plate can be moved upwards, the length of the spring, the ejector and the return pin can be shortened, the strength of the ejector is improved, and the effect of reducing the weight and cost of a mold is achieved.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to an injection mold for large-size thin sheets. Background Technology

[0002] Sheet injection molds are tools used to produce sheet plastic products. They use injection molding technology to process plastic materials into sheet products of specific shapes and sizes. Different types of sheet injection molds play a key role in the processing of materials such as rubber and plastics, as well as in product manufacturing.

[0003] Because of the minimum mold thickness requirement of injection molding machines, some large-sized, thin-walled, thick-walled products require large-tonnage injection molding machines due to their large projected area. In order to meet the minimum mold thickness requirement of the injection molding machine, thin-walled products often need to be made very thick, which increases the weight and cost of the mold. Utility Model Content

[0004] The purpose of this utility model is to provide a solution for large-size thin-sheet injection molds, which addresses the problem that existing technology requires injection molding machines to have a minimum mold thickness requirement. For some large-size thin-walled products with large projected areas, large-tonnage injection molding machines are needed. In order to meet the minimum mold thickness requirement of the injection molding machine, thin-walled products often need to be made very thick, which increases the weight and cost of the mold.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a large-size thin-sheet injection mold, comprising a lower fixed plate and an upper fixed plate. A support plate is fixedly mounted on the upper surface of the lower fixed plate, and the upper fixed plate is fixedly mounted on one end of the support plate. A B plate is fixedly mounted on the upper surface of the support plate, and an A plate is fixedly mounted on the upper surface of the B plate. The A plate is connected to the lower surface of the upper fixed plate. A glue outlet device is installed inside the upper fixed plate, extending between the A plate and the B plate. A cost reduction mechanism is fixedly mounted on the upper surface of the lower fixed plate, and the support end of the cost reduction mechanism is connected to the lower surface of the B plate.

[0007] Furthermore, the cost reduction mechanism includes ejector plate support rods, and several sets of ejector plate support rods are fixedly installed on the upper surface of the lower fixed plate.

[0008] Furthermore, one end of the ejector plate support rod is provided with an ejector plate.

[0009] Furthermore, several sets of ejector pins are fixedly installed on the upper surface of the ejector plate.

[0010] Furthermore, a number of return pins are installed on the upper surface of the ejector plate, one end of each return pin is connected to the interior of the B plate, and a spring is sleeved on the outer surface of each return pin. A number of support columns are fixedly installed on the upper surface of the lower fixing plate, and all the support columns are connected to the lower surface of the ejector plate and the B plate.

[0011] Furthermore, a number of sets of push rods are installed on the lower surface of the ejector plate.

[0012] This utility model has the following beneficial effects:

[0013] (1) By installing an ejector plate support rod between the ejector plate and the lower fixed plate, the ejector plate can be moved up, which can shorten the length of the spring, ejector pin and return pin, increase the ejector pin strength, and reduce the weight and cost of the mold.

[0014] (2) This utility model places support columns between the B plate and the lower fixed plate. The spacing and specifications of the support columns must be able to ensure that the B plate does not deform during injection molding.

[0015] (3) This utility model achieves the goal of ensuring the mold ejection distance even after the ejector pin is moved upward by installing an ejector pin column under the ejector plate.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic cross-sectional view of the overall structure of this utility model. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 3 This is a schematic diagram of part of the structure of this utility model;

[0021] Figure 4 This is a schematic cross-sectional view of the overall structure of this utility model. Figure 2 ;

[0022] The attached diagram lists the components represented by each number as follows:

[0023] In the diagram: 1. Lower fixing plate; 2. Support plate; 3. Upper fixing plate; 4. Plate A; 5. Plate B; 6. Gluing device; 7. Ejector plate support rod; 8. Ejector plate; 9. Ejector pin; 10. Return pin; 11. Spring; 12. Support column; 13. Ejector roller column. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-4 As shown, this utility model is a large-size thin sheet injection mold, including a lower fixed plate 1 and an upper fixed plate 3. A support plate 2 is fixedly installed on the upper surface of the lower fixed plate 1, and the upper fixed plate 3 is fixedly installed on one end of the support plate 2. A B plate 5 is fixedly installed on the upper surface of the support plate 2, and an A plate 4 is fixedly installed on the upper surface of the B plate 5. The A plate 4 is connected to the lower surface of the upper fixed plate 3. A glue outlet device 6 is installed inside the upper fixed plate 3 and extends between the A plate 4 and the B plate 5. A cost reduction mechanism is fixedly installed on the upper surface of the lower fixed plate 1, and the support end of the cost reduction mechanism is connected to the lower surface of the B plate 5.

[0026] The cost reduction mechanism includes ejector plate support rods 7, and several sets of ejector plate support rods 7 are fixedly installed on the upper surface of the lower fixed plate 1;

[0027] By installing an ejector plate support rod 7 between the ejector plate 8 and the lower fixed plate 1, the ejector plate 8 can be moved upward, which can shorten the length of the spring 11, ejector pin 9, and return pin 10, increase the strength of the ejector pin 9, and reduce the weight and cost of the mold.

[0028] One end of the ejector plate support rod 7 is provided with an ejector plate 8.

[0029] Several sets of ejector pins 9 are fixedly installed on the upper surface of the ejector plate 8.

[0030] Several sets of return pins 10 are installed on the upper surface of the ejector plate 8. One end of each return pin 10 is connected to the inside of the B plate 5. A spring 11 is sleeved on the outer surface of the return pin 10. Several sets of support columns 12 are fixedly installed on the upper surface of the lower fixing plate 1. All the support columns 12 are connected to the lower surface of the ejector plate 8 and the B plate 5 through the ejector plate 8.

[0031] By placing support columns 12 between plate B 5 and lower fixed plate 1, the spacing and specifications of the support columns 12 must be sufficient to prevent plate B from deforming during injection molding.

[0032] Several sets of push rods 13 are installed on the lower surface of the ejector plate 8;

[0033] By installing the ejector pin 13 under the ejector plate 8, the ejection distance of the mold can still be guaranteed even after the ejector pin 13 moves upward.

[0034] When in use, firstly, support columns 12 are placed between B plate 5 and lower fixed plate 1. The spacing and specifications of the support columns 12 must be sufficient to prevent B plate from deforming during injection molding.

[0035] By installing an ejector plate support rod 7 between the ejector plate 8 and the lower fixed plate 1, the ejector plate 8 can be moved upwards, which can shorten the length of the spring 11, ejector pin 9, and return pin 10, increase the strength of the ejector pin 9, and thus reduce the weight and cost of the mold.

[0036] By installing the ejector pin 13 under the ejector plate 8, the ejection distance of the mold can still be guaranteed even after the ejector pin 13 moves upward.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A large-size thin sheet injection mold, comprising a lower fixed plate (1) and an upper fixed plate (3), wherein a support plate (2) is fixedly installed on the upper surface of the lower fixed plate (1), an upper fixed plate (3) is fixedly installed at one end of the support plate (2), a B plate (5) is fixedly installed on the upper surface of the support plate (2), an A plate (4) is fixedly installed on the upper surface of the B plate (5), the A plate (4) is connected to the lower surface of the upper fixed plate (3), and a gate device (6) is installed inside the upper fixed plate (3), the gate device (6) extending between the A plate (4) and the B plate (5), characterized in that: A cost reduction mechanism is fixedly installed on the upper surface of the lower fixed plate (1), and the support end of the cost reduction mechanism is connected to the lower surface of plate B (5).

2. The injection mold for large-size thin sheets according to claim 1, characterized in that: The cost reduction mechanism includes ejector plate support rods (7), and several sets of ejector plate support rods (7) are fixedly installed on the upper surface of the lower fixed plate (1).

3. The injection mold for large-size thin sheets according to claim 2, characterized in that: One end of the ejector plate support rod (7) is provided with an ejector plate (8).

4. The injection mold for large-size thin sheets according to claim 3, characterized in that: Several sets of ejector pins (9) are fixedly installed on the upper surface of the ejector plate (8).

5. The injection mold for large-size thin sheets according to claim 3, characterized in that: The upper surface of the ejector plate (8) is equipped with several sets of return pins (10), one end of each return pin (10) is connected to the interior of the B plate (5), and the outer surface of each return pin (10) is fitted with a spring (11). The upper surface of the lower fixing plate (1) is fixedly equipped with several sets of support columns (12), and the support columns (12) are all connected to the lower surface of the ejector plate (8) and the B plate (5).

6. The injection mold for large-size thin sheets according to claim 3, characterized in that: The lower surface of the ejector plate (8) is equipped with several sets of ejector pins (13).

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