Injection mold

Abstract

The utility model relates to the technical field of injection molding process devices, and provides an injection mold which comprises a fixed mold assembly and a movable mold assembly, a product cavity is formed between the fixed mold assembly and the movable mold assembly, a sliding block and an ejection assembly are arranged on the movable mold assembly, a material channel is arranged on the sliding block, the ejection assembly comprises an ejection rod, and after the mold is closed, the ejection rod is inserted into the material channel. During mold opening, injection molding materials enter a product cavity through the material channel on the sliding block, and during mold opening, when the sliding block drives the material channel to move to the position where the ejector rod is located, the ejection assembly drives the ejector rod to move, so that the injection molding materials solidified in the material channel are ejected out of the material channel through the ejector rod; when the injection mold needs to produce a plurality of products at one time, a plurality of product cavities can be arranged, the material channels are arranged on the plurality of sliding blocks, each product cavity is communicated with one material channel, and the length of the material channels arranged on the sliding blocks is not too long, so that after the injection molding work is completed, the residual curing injection molding material in the flow channels is not too much, and the production efficiency is improved. Therefore, production raw materials are saved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of injection molding process devices, in particular to an injection molding mold. Background Art

[0002] Injection mold is a common manufacturing tool, mainly used to make plastic injection molded products. It is composed of high-precision molds and mold holders, and is used to make plastic products of various shapes and sizes, such as plastic cups, plastic plates, plastic toys, auto parts, etc. In the injection molding process, the mold is injected with molten plastic, which is then cooled to solidify and form the desired plastic product. Injection molds play a vital role in modern manufacturing.

[0003] An injection mold can produce one or more products at one time. In the prior art, when an injection mold needs to produce multiple products at one time, the material channel is usually very long. After the injection molding work is completed, more injection molding material will remain in the material channel, resulting in excessive waste. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide an injection mold in view of the current status of the prior art.

[0005] The technical solution adopted by the utility model to solve the above technical problems is: to propose an injection mold, comprising:

[0006] Fixed mold assembly;

[0007] A movable mold assembly, which movably abuts against the fixed mold assembly;

[0008] A product cavity is formed between the fixed mold component and the movable mold component when the fixed mold component and the movable mold component abut against each other;

[0009] A slider assembly is arranged on the movable mold assembly, the slider assembly includes a plurality of movable sliders, at least one of the sliders is provided with a material channel, the material channel is communicated with the product cavity, and is used for injection molding raw materials to enter the product cavity;

[0010] An ejector assembly, wherein at least one group of the ejector assemblies is arranged in the movable mold assembly, and the ejector assembly includes a movably arranged ejector rod, one end of which is arranged on the moving path of the material channel, and is used to eject the solidified injection molding material in the material channel out of the material channel.

[0011] In the above-mentioned injection mold, a latent gate is provided at one end of the material channel, and a first feed port is provided on one side of the product cavity. The latent gate is connected to the first feed port for supplying injection molding raw materials into the product cavity.

[0012] In the above-mentioned injection mold, a through hole is provided on the slide block, the through hole is located below the material channel, and the through hole is communicated with the material channel for the ejector rod to enter.

[0013] In the above-mentioned injection mold, the ejector assembly includes:

[0014] A push plate, which is arranged in the movable mold assembly and is used to drive the ejector rod to move;

[0015] A fixing plate is arranged on the push plate, one end of the push rod away from the material channel is clamped on the fixing plate and pressed against the push plate, and the fixing plate is used to fix the push rod.

[0016] In the above-mentioned injection mold, a hot runner is also arranged in the fixed mold assembly, and an electrical connector is arranged on one side of the fixed mold assembly. The hot runner is electrically connected to the electrical connector. The hot runner can be in a heating state because the electrical connector is connected to an external power supply, and is used to heat the injection molding material entering the hot runner.

[0017] In the above-mentioned injection mold, a second feed port is provided on the hot runner, and the second feed port is located outside the fixed mold assembly and is used for the injection raw material to enter the hot runner.

[0018] In the above-mentioned injection mold, at least one nozzle is further provided on the hot runner, and the nozzle is communicated with the material channel for allowing the heated injection raw material to enter the material channel.

[0019] Compared with the prior art, the utility model has the advantage that, by arranging a slider and an ejector assembly on the movable mold assembly, a product cavity is formed between the fixed mold assembly and the movable mold assembly when the mold is closed, a material channel is arranged on the slider, and the ejector assembly includes an ejector rod. After the mold is closed, the injection material enters the product cavity through the material channel on the slider. When the mold is opened, when the slider moves with the material channel to the position of the ejector rod, the ejector assembly drives the ejector rod to move, so that the ejector rod ejects the solidified injection material in the material channel from the material channel; when the injection mold needs to produce multiple products at one time, multiple product cavities can be arranged, and material channels are arranged on multiple sliders at the same time, and each product cavity is connected to a material channel. The length of the material channel arranged on the slider will not be too long, so that after the injection molding work is completed, there will not be too much solidified injection material remaining in the flow channel, thereby saving production raw materials and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of this scheme;

[0021] Figure 2 This is a three-dimensional diagram of the hidden fixed mold assembly and hot runner in this solution;

[0022] Figure 3 This is a plan view of the hidden fixed mold assembly and hot runner in this solution;

[0023] Figure 4 yes Figure 3 Sectional view of AA in the middle;

[0024] Figure 5 It is a structural schematic diagram of the hot runner in this scheme.

[0025] In the figure, 1. fixed mold assembly; 2. movable mold assembly; 3. product cavity; 4. slider; 5. material channel; 6. ejector pin; 7. latent gate; 8. perforation; 9. push plate; 10. fixed plate; 11. hot runner; 12. electrical connection parts; 13. second feed port; 14. nozzle. DETAILED DESCRIPTION

[0026] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0027] like Figures 1 to 5 As shown, an injection mold of the utility model comprises:

[0028] Fixed mold assembly 1;

[0029] A movable mold assembly 2, which movably abuts against the fixed mold assembly 1;

[0030] A product cavity 3 is formed between the fixed mold assembly 1 and the movable mold assembly 2 when the fixed mold assembly 1 and the movable mold assembly 2 abut against each other;

[0031] A slider assembly is arranged on the movable mold assembly 2, and the slider assembly includes a plurality of movable sliders 4, and a material channel 5 is arranged on at least one slider 4, and the material channel 5 is connected with the product cavity 3 for supplying injection molding raw materials into the product cavity 3;

[0032] The ejector assembly is provided with at least one group of ejector assemblies in the movable mold assembly 2 . The ejector assembly includes a movably arranged ejector rod 6 , one end of which is arranged on the moving path of the material channel 5 , and is used to eject the solidified injection molding material in the material channel 5 out of the material channel 5 .

[0033] After the mold is closed, the injection material enters the product cavity 3 through the material channel 5 on the slider 4. When the mold is opened, when the slider 4 moves with the material channel 5 to the position of the ejector 6, the ejector assembly drives the ejector 6 to move, so that the ejector 6 ejects the solidified injection material in the material channel 5 from the material channel 5.

[0034] When the injection mold needs to produce multiple products at one time, multiple product cavities 3 can be set, and material channels 5 can be set on multiple sliders 4, and each product cavity 3 is connected to a material channel 5. The length of the material channel 5 set on the slider 4 will not be too long, so that after the injection molding work is completed, there will not be too much solidified injection molding material remaining in the flow channel, thereby saving production raw materials and reducing production costs.

[0035] More specifically, a latent gate 7 is provided at one end of the material channel 5 , and a first feed port is provided at one side of the product cavity 3 . The latent gate 7 is connected to the first feed port for supplying injection molding raw materials into the product cavity 3 .

[0036] The latent gate 7 is evolved from the point gate, and its branch channel is opened on the parting surface, and the gate is submerged under the parting surface and enters the cavity along the oblique direction. In addition to the characteristics of the point gate, the latent gate 7 has a feed gate that is generally on the inner surface or side hidden part of the plastic part. Therefore, the latent gate 7 is divided into an inner latent gate 7 and an outer latent gate 7. Most functional parts, switch fixing frames, etc. use the latent gate 7 type on the outside, while most product shells use the latent gate type on the inside. This gate can automatically drop materials to meet automation requirements, and no gate marks are left on the product surface.

[0037] More specifically, a through hole 8 is provided on the slider 4 , and the through hole 8 is located below the material channel 5 , and the through hole 8 is communicated with the material channel 5 for allowing the ejector rod 6 to enter.

[0038] When the mold is opened, the slider 4 drives the material channel 5 to move. When the through hole 8 on the slider 4 moves to the position of the ejector 6, the ejector assembly drives the ejector 6 into the through hole 8 to eject the solidified injection material in the through hole 8 and the material channel 5.

[0039] More specifically, the ejector assembly includes:

[0040] A push plate 9 is arranged in the movable mold assembly 2 and is used to drive the ejector rod 6 to move;

[0041] The fixing plate 10 is arranged on the pushing plate 9 , and one end of the ejector rod 6 away from the material channel 5 is clamped on the fixing plate 10 and pressed against the pushing plate 9 . The fixing plate 10 is used to fix the ejector rod 6 .

[0042] More specifically, a hot runner 11 is also provided in the fixed mold assembly 1, and an electrical connection part 12 is provided on one side of the fixed mold assembly 1. The hot runner 11 is electrically connected to the electrical connection part 12. The hot runner 11 can be in a heating state because the electrical connection part 12 is connected to an external power supply, and is used to heat the injection molding material entering the hot runner 11.

[0043] During operation, the power connector 12 is connected to an external power source, and the injection molding material entering the hot runner 11 is continuously heated. After the injection molding work is completed, the power connector 12 is disconnected from the external power source, and the solidified injection molding material in the hot runner 11 does not need to be taken out. When working again, the power connector 12 is connected to the external power source again, and the hot runner 11 is heated to a required temperature. The solidified injection molding material in the hot runner 11 is heated to a molten state and can continue to be used, which saves raw materials for the injection molding work and reduces production costs.

[0044] In order to allow the injection material to enter the hot runner 11 , a second feed port 13 is provided on the hot runner 11 . The second feed port 13 is located at one side of the fixed mold assembly 1 .

[0045] In order to allow the heated injection molding material in the hot runner 11 to enter the material channel 5 , at least one nozzle 14 is further provided on the hot runner 11 , and the nozzle 14 is communicated with the material channel 5 .

[0046] The injection molding material enters the hot runner 11 from the second feed port 13 , and the electrical connection piece 12 is connected to an external power source, so that the hot runner 11 continuously heats the injected injection molding material. The heated injection molding material enters the material channel 5 through the nozzle 14 .

[0047] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0048] In addition, in the present invention, the descriptions of "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0049] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0051] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the scope defined by the spirit of the present invention.

Claims

1. An injection mold, characterized in that: include: Fixed mold assembly; A movable mold assembly, which movably abuts against the fixed mold assembly; A product cavity is formed between the fixed mold component and the movable mold component when the fixed mold component and the movable mold component abut against each other; A slider assembly is arranged on the movable mold assembly, the slider assembly includes a plurality of movable sliders, at least one of the sliders is provided with a material channel, the material channel is communicated with the product cavity, and is used for injection molding raw materials to enter the product cavity; An ejector assembly, wherein at least one group of the ejector assemblies is arranged in the movable mold assembly, and the ejector assembly includes a movably arranged ejector rod, one end of which is arranged on the moving path of the material channel, and is used to eject the solidified injection molding material in the material channel out of the material channel.

2. An injection mold as claimed in claim 1, characterized in that: A latent gate is arranged at one end of the material channel, and a first feed port is arranged at one side of the product cavity. The latent gate is connected with the first feed port to supply injection molding raw materials into the product cavity.

3. An injection mold as claimed in claim 1, characterized in that: The sliding block is provided with a through hole, the through hole is located below the material channel, and the through hole is communicated with the material channel for allowing the ejector rod to enter.

4. An injection mold as claimed in claim 1, characterized in that: The ejection assembly comprises: A push plate, which is arranged in the movable mold assembly and is used to drive the ejector rod to move; A fixing plate is arranged on the push plate, one end of the push rod away from the material channel is clamped on the fixing plate and pressed against the push plate, and the fixing plate is used to fix the push rod.

5. An injection mold as claimed in claim 1, characterized in that: A hot runner is also provided in the fixed mold assembly. An electrical connection piece is provided on one side of the fixed mold assembly. The hot runner is electrically connected to the electrical connection piece. The hot runner can be in a heating state because the electrical connection piece is connected to an external power supply, so as to heat the injection molding material entering the hot runner.

6. An injection mold as claimed in claim 5, characterized in that: The hot runner is provided with a second feed port, which is located outside the fixed mold assembly and is used for the injection molding raw material to enter the hot runner.

7. An injection mold according to claim 6, characterized in that: The hot runner is also provided with at least one nozzle, which is communicated with the material channel and is used for allowing the heated injection molding raw material to enter the material channel.

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