Injection mold for display backboard production

Abstract

The utility model belongs to the technical field of injection molds, and particularly relates to an injection mold for producing a display backboard, which comprises a lower mold base, an upper mold base and a pouring pipe above the lower mold base, the inner mold base is located between the lower mold base and the upper mold base, is longitudinally stacked in a layered mode and is used for increasing the number of injection mold cavities and improving the yield, pouring gates which are communicated with one another are formed in the lower mold base, the upper mold base and the inner mold base, and flow guide holes which are communicated with the mold cavities are formed in one sides of the pouring gates; and the sealing plate is located in the limiting grooves in the right sides of the lower mold base and the inner mold frames and used for blocking the pouring gates to separate the pouring gates, so that each inner mold frame can be subjected to mold opening separation, and internal products can be conveniently taken out. According to the utility model, the production operation of multi-layer simultaneous injection molding can be realized, each layer of mold cavity can be separated after injection molding, and the effects of batch injection molding and low operation difficulty are achieved.

Description

Technical Field

[0001] This utility model belongs to the field of injection mold technology, and in particular relates to an injection mold for producing display back panels. Background Technology

[0002] A display back panel injection mold is a mold specifically used to produce display back panels. It uses the injection molding process to process plastic materials into display back panels of specific shapes and sizes, giving the plastic shape and size.

[0003] Currently, in practical applications, existing injection molds often employ a method of simultaneous injection of multiple cavities to increase production output. However, this method requires arranging the cavities on the same plane, which undoubtedly occupies a large area and affects practicality. At the same time, the number of products injected is limited, which cannot meet the needs of large-scale production.

[0004] To address the aforementioned issues, this application proposes an injection mold for manufacturing display back panels. Utility Model Content

[0005] The purpose of this invention is to provide an injection mold for manufacturing display back panels, which solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is an injection mold for producing a display back panel, including a lower mold base, an upper mold base and a gating pipe above it;

[0008] The inner mold frame, located between the lower mold base and the upper mold base, is a vertically layered structure used to increase the injection mold cavity and improve production output. The lower mold base, the upper mold base, and the inner mold frame are all provided with interconnected sprues, and one side of the sprue is provided with a guide hole that connects to the mold cavity.

[0009] The sealing plate, located inside the limiting groove on the right side of the lower mold base and the inner mold frame, is used to block the sprue and separate the gate, so that each inner mold frame can be opened and separated, making it easy to remove the internal product.

[0010] Furthermore, the lower mold base, the upper mold base, and the inner mold frame are all provided with side grooves with upper openings at the four corners, and a first electric telescopic device is installed inside the side grooves of the lower mold base and the inner mold frame to push the inner mold frame out for mold opening.

[0011] Furthermore, the lower mold base and the inner mold frame are provided with a side plate on the right side, and a second electric telescopic device is installed inside the limiting groove.

[0012] Furthermore, the right end of the sealing plate is provided with a push plate, which is connected to the movable end of the second electric telescopic device.

[0013] Furthermore, the left end of the sealing plate is provided with a sealing ring for connecting to the gating channel and filling gaps to prevent material overflow.

[0014] Furthermore, a slot is provided at the left end of the push plate for engaging the sealing ring.

[0015] Furthermore, each adjacent runner is equipped with a raised tube and a sealing tube, with the lower sealing tube enclosing the upper raised tube to ensure the flow of injection molding material.

[0016] This utility model has the following beneficial effects:

[0017] This utility model combines the internal structural features of the upper and lower mold frames through a double-layer structure of the inner mold frame. By combining the sprue and guide holes, material can be directly injected into different mold cavities, enabling the mold to be installed vertically and simultaneously injection molded into multiple products. This improves space utilization and increases production capacity, while being simple to operate and suitable for large-scale production needs.

[0018] This invention allows the sealing plate to be installed inside the limiting groove. During injection molding, the inner side of the sealing ring is flush with the sprue. After the material enters, the sealing plate blocks the sprue, thus fixing the gate and achieving the effect of layered injection molding. After the mold is opened, the sprue and guide hole can be cleaned directly. The operation is simple and the gates of multiple mold cavities can be connected in series to realize batch injection molding production.

[0019] 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

[0020] 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.

[0021] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall internal planar structure of this utility model;

[0023] Figure 3 This is a partially enlarged structural diagram of part A of this utility model;

[0024] Figure 4 This is a schematic diagram of the internal structure of the right end of the lower mold base of this utility model;

[0025] The attached diagram lists the components represented by each number as follows:

[0026] In the diagram: 1. Lower mold base; 2. Upper mold base; 3. Inner mold frame; 4. Side groove; 5. First electric expansion joint; 6. Sprue; 7. Side plate; 8. Sprue; 9. Guide hole; 10. Limiting groove; 11. Sealing plate; 12. Protruding tube; 13. Sealing tube; 14. Push plate; 15. Second electric expansion joint; 16. Sealing ring; 17. Slot. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0028] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] Please see Figure 1-4 As shown, this utility model is an injection mold for producing a display back panel, including a lower mold base 1, an upper mold base 2, and a gating pipe 6 above them;

[0030] The inner mold base 3 is located between the lower mold base 1 and the upper mold base 2. It is a vertically layered stack to increase the injection mold cavity and improve production. The lower mold base 1, the upper mold base 2 and the inner mold base 3 are all provided with interconnected sprues 8, and a guide hole 9 connecting the mold cavity is provided on one side of the sprue 8.

[0031] The sealing plate 11 is located inside the limiting groove 10 on the right side of the lower mold base 1 and the inner mold frame 3. It is used to block the sprue 8 and separate the gate, so that each inner mold frame 3 can be opened and separated, making it convenient to take out the internal product.

[0032] This embodiment provides a mold structure capable of batch injection molding. The double-sided structure of the inner mold frame 3 forms a layered mold cavity with the lower mold base 1 and the upper mold base 2. Combined with the connection of multiple runners 8, it can directly perform multi-layer simultaneous injection molding operations. During injection molding, the sealing plate 11 is used to separate the material in the runner, so that each layer of the inner mold frame 3 can be separated from the mold, ensuring the smooth removal of the internal products.

[0033] The lower mold base 1, the upper mold base 2, and the inner mold frame 3 are all provided with side grooves 4 with upper openings at the four corners. The first electric telescopic device 5 is installed inside the side grooves 4 of the lower mold base 1 and the inner mold frame 3 to push the inner mold frame 3 out to open the mold, so that the products in the mold cavity are also separated from each other.

[0034] The lower mold base 1 and the inner mold frame 3 are provided with a side plate 7 on the right side, and a second electric telescopic device 15 is installed inside it. It is located inside the limiting groove 10. The right end of the sealing plate 11 is provided with a push plate 14, which is connected to the movable end of the second electric telescopic device 15, thereby adjusting the use state of the sealing plate 11.

[0035] The sealing plate 11 has a sealing ring 16 on its left end, which is used to connect with the sprue 8 and fill the gap to prevent material from overflowing, ensuring that the multi-layer mold cavity is sealed and connected during injection molding.

[0036] The push plate 14 has a slot 17 on its left end for engaging the sealing ring 16. When the sealing plate 11 blocks the gating channel 8, the sealing ring 16 is housed inside the slot 17.

[0037] The junctions of adjacent runners 8 are provided with a protruding tube 12 and a sealing tube 13. The sealing tube 13 located below wraps around the protruding tube 12 above to ensure the flow of injection molding material.

[0038] It is understandable that this utility model can realize multi-layer simultaneous injection molding production operations and ensure that each mold cavity can be separated after injection molding, achieving the effect of batch injection molding with low operation difficulty.

[0039] A specific application of the operation process of this embodiment is as follows: In use, multiple inner mold frames 3 are first stacked between the lower mold base 1 and the upper mold base 2. At this time, the convex tube 12 is wrapped by the sealing tube 13, and the adjacent sprues 8 are interconnected. After this arrangement, the material can be poured directly through the sprue 6 to form multiple mold cavities for simultaneous injection molding. When the material of each layer of mold cavity reaches a predetermined value, the second electric telescopic device 15 drives the sealing plate 11 to block the sprue 8, forming a partition. This makes the gates isolated from each other. When the mold is opened, each inner mold frame 3 can be directly separated, which is convenient for removing the internal product and also convenient for cleaning the sprue 8 for the next injection molding operation.

[0040] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] 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. An injection mold for producing a display back panel, comprising a lower mold base (1) and an upper mold base (2) and a gating pipe (6) above them, characterized in that: The inner mold frame (3) is located between the lower mold base (1) and the upper mold base (2). It is a longitudinally layered stack, used to increase the injection mold cavity and improve production. The lower mold base (1), the upper mold base (2) and the inner mold frame (3) are all provided with interconnected sprues (8), and a guide hole (9) connecting the mold cavity is provided on one side of the sprue (8). The sealing plate (11) is located inside the limiting groove (10) on the right side of the lower mold base (1) and the inner mold frame (3). It is used to block the sprue (8) and separate the gate, so that each inner mold frame (3) can be opened and separated, making it convenient to take out the internal product.

2. The injection mold for producing a display backplane according to claim 1, wherein: The lower mold base (1), the upper mold base (2), and the inner mold frame (3) are all provided with side grooves (4) with upper openings at the four corners. A first electric telescopic device (5) is installed inside the side grooves (4) of the lower mold base (1) and the inner mold frame (3) to push the inner mold frame (3) out to open the mold.

3. The injection mold for producing a display backplane according to claim 1, wherein: The lower mold base (1) and the inner mold frame (3) are provided with a side plate (7) on the right side, and a second electric telescopic device (15) is installed inside, located inside the limiting groove (10).

4. The injection mold for producing a display backplane according to claim 1, wherein: The right end of the sealing plate (11) is provided with a push plate (14), which is connected to the movable end of the second electric telescopic device (15).

5. The injection mold for producing a display backplane according to claim 1, wherein: The sealing plate (11) is provided with a sealing ring (16) at the left end, which is used to connect with the gating channel (8) and fill the gap to prevent material from overflowing.

6. The injection mold for producing a display backplane according to claim 4, wherein: The push plate (14) has a slot (17) at its left end for engaging the sealing ring (16).

7. The injection mold for producing a display backplane according to claim 1, wherein: At the junction of adjacent runners (8), there are protruding tubes (12) and sealing tubes (13). The sealing tube (13) located below wraps around the protruding tube (12) above to ensure the flow of injection molding material.

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