Rubber coating forming mold

Abstract

The utility model discloses a rubber coating forming die, which comprises an upper die mechanism, a lower die mechanism and a lower die mechanism, the lower die mechanism is used for positioning the part to be encapsulated from the lower part; the side pushing mechanism is arranged at the side part of the lower die mechanism and is used for positioning the to-be-encapsulated part from the side surface, and a cavity for placing the to-be-encapsulated part is formed among the side pushing mechanism, the upper die mechanism and the lower die mechanism; the lateral pushing mechanism comprises a sliding seat, a sliding block and a connecting piece, the sliding block is arranged in the sliding seat in a sliding manner, the connecting piece is movably connected with the sliding block, the connecting piece is in transmission connection with a driving part, and the driving part pushes the sliding seat to abut against the lower die mechanism and pushes the sliding block to abut against the part to be encapsulated. And a sliding gap matched with the length of the to-be-encapsulated piece is formed between the sliding block and the connecting piece. The rubber coating forming die provided by the utility model can reduce the requirement of the die on the precision of a part to be coated with rubber, and improve the production efficiency and the product quality.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, and particularly relates to a rubber overmolding mold. Background Art

[0002] Compared with aluminum alloy die-casting powder spraying parts, metal rubber overmolding parts can reduce manual grinding, avoid dust pollution, and reduce production costs.

[0003] In the existing rubber overmolding process, the upper mold mechanism and the lower mold mechanism are used to complete the mold closing. It requires very high machining accuracy of the workpiece. If the length of the workpiece is too long, it will cause interference between the workpiece and the mold, resulting in mold collision. If the length is too short, it will cause glue overflow. Summary of the Utility Model

[0004] In order to solve the above problems, the purpose of the utility model is to provide a rubber overmolding mold. The side pushing mechanism can be adjusted adaptively according to the length of the rubber overmolding part to abut against the rubber overmolding part, reduce the requirement for the machining accuracy of the workpiece during rubber overmolding, and improve production efficiency.

[0005] Based on the above problems, the technical solution provided by the utility model is as follows:

[0006] A rubber overmolding mold, comprising:

[0007] An upper mold mechanism for positioning the rubber overmolding part from above;

[0008] A lower mold mechanism for positioning the rubber overmolding part from below;

[0009] A side pushing mechanism, which is arranged on the side of the lower mold mechanism for positioning the rubber overmolding part from the side. A cavity for the rubber overmolding part to be placed is formed between the side pushing mechanism, the upper mold mechanism and the lower mold mechanism. The side pushing mechanism includes a sliding seat, a slider slidably arranged in the sliding seat, and a connecting piece movably connected to the slider. The connecting piece is in transmission connection with a driving component. The driving component pushes the sliding seat to abut against the lower mold mechanism and pushes the slider to abut against the rubber overmolding part. A sliding gap adapted to the length of the rubber overmolding part is provided between the slider and the connecting piece.

[0010] In some embodiments, a T-shaped limiting block is provided at one end of the connecting piece close to the slider, and a limiting groove for the T-shaped limiting block to be placed is provided on the slider. The length of the limiting groove along the sliding direction of the slider is greater than that of the T-shaped limiting block.

[0011] In some embodiments, a first positioning pin is provided at one end of the slider close to the lower mold mechanism to cooperate with a first positioning hole on the rubber overmolding part.

[0012] In some of these embodiments, a chute with an upper opening and a side communicating with the cavity is provided on the sliding seat, and the slider is slidably disposed in the chute.

[0013] In some of these embodiments, a limiting protrusion is provided at the bottom of the slider, and a kidney-shaped hole matching the limiting protrusion is provided at the bottom of the chute.

[0014] In some of these embodiments, an upper inclined surface extending obliquely upward from the connecting member toward the cavity is provided on the slider and the sliding seat, and a lower inclined surface matching the upper inclined surface is provided on the upper die mechanism.

[0015] In some of these embodiments, an elastic buffer is provided between the connecting member and the driving component.

[0016] In some of these embodiments, the elastic buffer is a spring, and a positioning groove for placing the elastic buffer is provided on one side of the connecting member close to the driving component.

[0017] In some of these embodiments, the upper die mechanism includes an upper die having a first groove at the lower end and a second positioning pin disposed in the first groove, and the second positioning pin cooperates with a second positioning hole on the part to be overmolded.

[0018] In some of these embodiments, the lower die mechanism includes a lower die having a second groove at the upper end and a third positioning pin disposed in the second groove, and the third positioning pin cooperates with a third positioning hole on the part to be overmolded.

[0019] Compared with the prior art, the advantages of the present utility model are:

[0020] (1) The slider of the side pushing mechanism can be adaptively adjusted according to the length of the part to be overmolded to abut against the part to be overmolded, and keep the cavity in a sealed state, ensuring the smooth progress of overmolding, reducing the requirement for the processing accuracy of the part to be overmolded by the overmolding die, and improving production efficiency;

[0021] (2) The T-shaped limiting block and the limiting groove are used for interlocking between the connecting member and the slider, with a simple structure and facilitating the relative sliding between the connecting member and the slider to adapt to the deviation of the length accuracy of the part to be overmolded, sealing the cavity, and ensuring the quality of overmolding;

[0022] (3) An upper inclined surface extending obliquely upward from the connecting member toward the cavity is provided on the slider and the sliding seat, and a lower inclined surface matching the upper inclined surface is provided on the upper die mechanism. When the upper die mechanism is closed, the sliding seat abuts against the lower die mechanism and the slider moves toward the part to be overmolded by the pushing of the lower inclined surface on the upper inclined surface. Description of the Drawings

[0023] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. The drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0024] Figure 1 It is one of the structural schematic diagrams of an embodiment of a rubber-coated molding die of the present utility model;

[0025] Figure 2 It is the second structural schematic diagram of an embodiment of the present utility model;

[0026] Figure 3 It is the third structural schematic diagram of an embodiment of the present utility model;

[0027] Figure 4 It is one of the structural schematic diagrams of a sliding seat in an embodiment of the present utility model;

[0028] Figure 5 It is the second structural schematic diagram of a sliding seat in an embodiment of the present utility model;

[0029] Figure 6 It is one of the structural schematic diagrams of a sliding block in an embodiment of the present utility model;

[0030] Figure 7 It is the second structural schematic diagram of a sliding block in an embodiment of the present utility model;

[0031] Figure 8 It is the structural schematic diagram of a connecting piece in an embodiment of the present utility model;

[0032] Figure 9 It is one of the structural schematic diagrams of a rubber-coated product completed in an embodiment of the present utility model;

[0033] Figure 10 It is the second structural schematic diagram of a rubber-coated product completed in an embodiment of the present utility model

[0034] Wherein:

[0035] 1. Upper die mechanism; 1-1. Upper die; 1-2. Second positioning pin;

[0036] 2. Lower die mechanism; 2-1. Lower die; 2-2. Third positioning pin;

[0037] 3. Side pushing mechanism; 3-1. Sliding seat; 3-1a. Chute; 3-1b. Waist-shaped hole; 3-1c. Guide bar; 3-2. Sliding block; 3-2a. First positioning pin; 3-2b. Limiting projection; 3-2c. Limiting groove; 3-3. Connecting piece; 3-3a. T-shaped limiting block; 3-3b. Positioning groove; 3-4. Elastic buffer member;

[0038] 4. Parts to be overmolded; 4-1. First positioning hole; 4-2. Second positioning hole; 4-3. Third positioning hole; Specific embodiments

[0039] The above solution will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are for illustrating the present invention and not for limiting the scope of the present invention. The implementation conditions adopted in the embodiments can be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are usually those in conventional experiments.

[0040] As Figure 1 , Figure 2 , Figure 3 As shown in

[0041] , a structural schematic diagram of an embodiment of the present invention is provided. An overmolding die is provided, which includes an upper die mechanism 1, a lower die mechanism 2 and a side pushing mechanism 3 arranged on a die carrier (not shown). The parts to be overmolded 4 are hermetically coated by the upper die mechanism 1, the lower die mechanism 2 and the side pushing mechanism 3 to complete the overmolding process.

[0042] As Figure 8 shown, a T-shaped limit block 3-3a is provided at one end of the connecting member 3-3 close to the slider 3-2. At the same time, a limit groove 3-2c for the T-shaped limit block 3-3a to be inserted is provided on the slider 3-2. The length of the limit groove 3-2c along the sliding direction of the slider 3-2 is greater than that of the T-shaped limit block 3-3a. Thus, the cooperation between the T-shaped limit block 3-3a and the limit groove 3-2c can realize the interlock between the connecting member 3-3 and the slider 3-2. At the same time, the slider 3-2 can slide relative to the connecting member 3-3 to adapt to the deviation of the processing accuracy of the parts to be overmolded 4, improving the production efficiency and the overmolding quality of the product.

[0043] To facilitate the positioning between the slider 3-2 and the parts to be overmolded 4, as Figure 6 and Figure 7As shown, a first positioning pin 3-2a is provided at one end of the slider 3-2 close to the lower die mechanism 2 to cooperate with the first positioning hole 4-1 in the part 4 to be rubber-coated (as Figure 9 and Figure 10 shown).

[0044] To facilitate the sliding connection between the slider 3-2 and the slide base 3-1, as Figure 4 and Figure 5 shown, a chute 3-1a with an open upper end and a side communicating with the cavity is provided on the slide base 3-1, and the slider 3-2 is slidably arranged in the chute 3-1a.

[0045] Guide bars 3-1c are respectively provided on both sides of the slide base 3-1 in the moving direction. When the slide base 3-1 slides along the mold base, it can play a guiding role to make the slide base 3-1 move smoothly along the mold base.

[0046] To facilitate the sliding limit of the slider 3-2, a limit protrusion 3-2b is provided at the bottom of the slider 3-2. At the same time, a waist-shaped hole 3-1b matching the limit protrusion 3-2b is provided at the bottom of the chute 3-1a. The movable distance of the slider 3-2 relative to the slide base 3-1, that is, the length of the waist-shaped hole 3-1b, is determined according to the length error of the part 4 to be rubber-coated plus a certain safety distance.

[0047] In this example, upper inclined surfaces extending obliquely upward toward the cavity are provided on the slider 3-2 and the slide base 3-1 by a connecting member 3-3, and a lower inclined surface matching the upper inclined surface is provided on the upper die mechanism 1. When the upper die mechanism 1 and the lower die mechanism 2 are closed, the lower inclined surface pushes the upper inclined surface, so that the slider 3-2 and the slide base 3-1 move toward the lower die mechanism 2, and the slide base 3-1 abuts against the lower die mechanism 2 and the upper die mechanism 1.

[0048] An elastic buffer 3-4 is provided between the connecting member 3-3 and the driving component. Preferably, the elastic buffer 3-4 is a spring. When the driving component drives the slider 3-2 and the slide base 3-1 to move, the elastic buffer 3-4 can play a buffering role.

[0049] To facilitate the limit of the elastic buffer 3-4, a positioning groove 3-3b for the elastic buffer 3-4 to be placed is provided on the connecting member 3-3 close to the driving component side to ensure the stability of the elastic buffer 3-4.

[0050] The upper die mechanism 1 is used to position the part 4 to be rubber-coated from above, and includes an upper die 1-1 with a first groove at the lower end and a second positioning pin 1-2 arranged in the first groove. The second positioning pin 1-2 cooperates with the second positioning hole 4-2 on the part 4 to be rubber-coated (as Figure 9 shown).

[0051] The lower die mechanism 2 is used to position the component 4 to be overmolded from below, and includes a lower die 2-1 with a second groove at the upper end and a third positioning pin 2-2 arranged in the second groove. The third positioning pin 2-2 cooperates with the third positioning hole 4-3 on the component 4 to be overmolded (as Figure 10 shown).

[0052] The working principle of the utility model is as follows:

[0053] Place the component 4 to be overmolded into the lower die 2-1. The third positioning pin 2-2 extends into the third positioning hole 4-3 of the component 4 to be overmolded to position the component 4. The driving component pushes the connecting piece 3-3, and then pushes the sliding seat 3-1 and the sliding block 3-2 to the position of the lower die 2-1. The first positioning pin 3-2a on the sliding block 3-2 extends into the first positioning hole 4-1 of the component 4 to be overmolded. Then, start the mold closing to make the upper die mechanism 1 and the lower die mechanism 2 close. The upper die mechanism 1 pushes the sliding seat 3-1 and the sliding block 3-2 to further move to the position of the lower die 2-1, so that the sliding seat 3-1 abuts against the lower die 2-1. At the same time, the second positioning pin 1-2 extends into the second positioning hole 4-2 of the component 4 to be overmolded to close the component 4 in the cavity. After that, the mold injects glue to evenly fill the plastic around the component 4 to be overmolded to complete the overmolding. After cooling, the driving component drives the sliding seat 3-1 and the sliding block 3-2 to withdraw through the connecting piece 3-3, and ejects the product that has completed overmolding from the lower die 2-1.

[0054] In summary, the side pushing mechanism of the mold can be adjusted adaptively according to the length of the component to be overmolded, reducing the requirements of the mold for product accuracy and improving production efficiency and overmolding quality.

[0055] The above examples are only used to illustrate the technical concept and characteristics of the utility model, and the purpose is to enable those who are familiar with this technology to understand the content of the utility model and implement it accordingly, and cannot be used to limit the protection scope of the utility model. Any equivalent transformation or modification made according to the spirit and essence of the utility model should be covered within the protection scope of the utility model.

Claims

1. A rubber-coated forming mold, characterized in that, Comprising: An upper mold mechanism for positioning the part to be overmolded from above; A lower mold mechanism for positioning the part to be overmolded from below; A side pushing mechanism provided on the side of the lower mold mechanism for positioning the part to be overmolded from the side. A cavity for placing the part to be overmolded is formed among the side pushing mechanism, the upper mold mechanism and the lower mold mechanism. The side pushing mechanism includes a sliding seat, a slider slidably arranged in the sliding seat and a connecting piece movably connected to the slider. The connecting piece is in transmission connection with a driving component. The driving component pushes the sliding seat to abut against the lower mold mechanism and pushes the slider to abut against the part to be overmolded. A sliding gap adapted to the length of the part to be overmolded is provided between the slider and the connecting piece.

2. The overmolding die according to claim 1, wherein: A T-shaped limiting block is provided at one end of the connecting piece close to the slider, and a limiting groove for placing the T-shaped limiting block is provided on the slider. The length of the limiting groove along the sliding direction of the slider is greater than that of the T-shaped limiting block.

3. The overmolding die according to claim 2, characterized in that: A first positioning pin is provided at one end of the slider close to the lower mold mechanism to cooperate with a first positioning hole on the part to be overmolded.

4. The overmolding die according to claim 1, wherein: The sliding seat is provided with a chute with an open upper end and a side communicated with the cavity, and the slider is slidably arranged in the chute.

5. The overmolding die according to claim 4, wherein: A limiting protrusion is provided at the bottom of the slider, and a kidney-shaped hole matching the limiting protrusion is provided at the bottom of the chute.

6. The overmolding die according to claim 5, wherein: Upper inclined surfaces extending obliquely upward from the connecting piece towards the cavity are provided on the slider and the sliding seat, and a lower inclined surface matching the upper inclined surface is provided on the upper mold mechanism.

7. The overmolding die according to claim 1, wherein: An elastic buffer is provided between the connecting piece and the driving component.

8. The overmolding die according to claim 7, wherein: The elastic buffer is a spring, and a positioning groove for placing the elastic buffer is provided on one side of the connecting piece close to the driving component.

9. The overmolding die according to claim 1, wherein: The upper mold mechanism includes an upper mold with a first groove at the lower end and a second positioning pin arranged in the first groove. The second positioning pin cooperates with a second positioning hole on the part to be overmolded.

10. The encapsulation molding die according to claim 1, wherein: The lower mold mechanism includes a lower mold with a second groove at the upper end and a third positioning pin arranged in the second groove. The third positioning pin cooperates with a third positioning hole on the part to be overmolded.

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