TPV sliding material injection molding equipment

By introducing a sealing and buffering mechanism into the TPV slip injection molding equipment, combined with a hydraulic drive structure and hot melt butyl rubber, the problem of poor mold sealing was solved, and the injection quality and wear resistance of the sealing strip were improved.

CN224224339UActive Publication Date: 2026-05-12SAIYANG SEALING ELEMENT ZHEJIANG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SAIYANG SEALING ELEMENT ZHEJIANG
Filing Date
2025-05-12
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing injection molding equipment has poor mold sealing, which leads to heat dissipation and affects product quality.

Method used

The mold is sealed by employing a sealing and buffering mechanism, combined with a hydraulic pump-driven telescopic rod and pressing plate structure, and the sealing performance is improved by adding hot melt butyl rubber into the sealing groove.

Benefits of technology

It improves the sealing and stability of the injection molding process, ensures the injection molding quality of TPV slip material, and enhances the wear resistance and safety of the sealing strip.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses TPV (thermoplastic vulcanizate) sliding material injection molding equipment, which relates to the technical field of vehicle sealing strip injection molding and comprises a base, a supporting column is fixedly mounted at the top end of the base, a buffer plate is fixedly mounted at the top end of the base, and an adjusting wheel is movably mounted on the outer surface of the supporting column. A sealing mechanism is arranged between the base and the supporting column; a top plate is fixedly mounted on the outer surface of the supporting column, a pressing plate is movably mounted on the outer surface of the supporting column, and an injection molding mechanism is arranged between the top plate and the pressing plate. According to the TPV sliding material injection molding equipment, two kinds of hot-melt butyl rubber are added into the sealing groove, so that the better sealing performance of the TPV sliding material is improved, it is ensured that even if an automobile is soaked in water, the position of a sealing strip using the TPV sliding material does not leak water, the overall abrasion resistance is enhanced, generated impact force is relieved through a buffer spring, and the service life of the automobile is prolonged. And the buffer rod is used for positioning the lower die, generated impact is effectively absorbed through the adjusting wheel, and the stability of the equipment is improved.
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Description

Technical Field

[0001] This utility model relates to the field of automotive sealing strip injection molding technology, specifically a TPV slip material injection molding equipment. Background Technology

[0002] With the continuous development of society, people are finding it increasingly convenient to travel by car. Car sealing strips are used to fill various gaps and crevices between the components of the car body, and have functions such as shock absorption, waterproofing, and dustproofing. When a vehicle is involved in a side collision, the buffer distance is very short, which can easily injure the occupants. The sealing strips play a certain role in sealing and buffering. Using TPV sliding material can improve the comfort of the driving experience and protect the vehicle body.

[0003] However, existing injection molding equipment leaves material residue inside the mold during use, which can affect the production of subsequent plastic parts.

[0004] To address the aforementioned deficiencies, Chinese Patent Publication No. CN216831991U discloses an injection molding device for automotive door sealing strips. This device includes a base, a left bracket fixedly mounted on the left side wall of the base, and a top electric telescopic rod fixedly mounted on the top of the left bracket. This injection molding device for automotive door sealing strips shapes the sealing strip through injection molding, which, compared to extrusion, improves the surface smoothness of the processed sealing gasket and the uniformity of its molding, thereby improving the quality of the sealing gasket and reducing the probability of producing defective products. During production, internal water cooling is used for heat dissipation, increasing the cooling speed and production efficiency. Three cavities are formed inside the sealing strip, improving its deformation and recovery capabilities, thus extending its service life. When compressed, the sealing strip can deform and adhere to gaps for sealing, thereby improving the sealing effect.

[0005] The above-mentioned device improves the smoothness of the sealing gasket surface by extrusion during use. However, there are gaps around the mold during injection molding, which causes some heat to dissipate and affects the sealing performance during injection molding. Therefore, in actual use, the sealing effect of the mold is poor, which affects the injection molding quality of the product. Utility Model Content

[0006] The purpose of this invention is to provide a TPV slip injection molding equipment to solve the problem mentioned in the background art where poor mold sealing affects the injection molding quality of the product.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a TPV slip material injection molding equipment, comprising a base, a support column fixedly installed at the top of the base, a buffer plate fixedly installed at the top of the base, an adjusting wheel movably installed on the outer surface of the support column, and a sealing mechanism provided between the base and the support column; a top plate fixedly installed on the outer surface of the support column, a pressing plate movably installed on the outer surface of the support column, and an injection molding mechanism provided between the top plate and the pressing plate.

[0008] Furthermore, a hydraulic pump is fixedly installed at the top of the top plate, a telescopic rod is movably installed on the outer surface of the hydraulic pump, a pressing plate is fixedly installed on the bottom surface of the telescopic rod, and the pressing plate and the telescopic rod form a lifting structure.

[0009] Furthermore, the injection molding mechanism includes an upper mold, which is fixedly installed on the bottom surface of the pressing plate. A connecting rod is fixedly installed on the bottom surface of the pressing plate, and the pressing plate and the upper mold form an integral structure.

[0010] Furthermore, the sealing mechanism includes an adjustment component, which is movably mounted on the inner side of the connecting rod, and a sealing plate is fixedly mounted on the outer surface of the connecting rod.

[0011] Furthermore, an adjustment component is movably installed on the inner side of the sealing plate, and a baffle is fixedly installed on the outer surface of the adjustment component, and the adjustment component and the baffle form a telescopic structure.

[0012] Furthermore, a buffer spring is fixedly installed on the outer surface of the buffer plate, and a lower mold is fixedly installed on the top end of the buffer spring, and the buffer spring and the lower mold form a telescopic structure.

[0013] Furthermore, a buffer rod is fixedly installed on the bottom surface of the lower mold, and a sealing groove is provided on the inner side of the lower mold.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] (1) By adding two kinds of hot melt butyl rubber into the sealing groove, the sealing performance of TPV lubricant is improved, ensuring that even if the car is submerged in water, the parts of the sealing strip with this TPV lubricant will not leak, thus ensuring vehicle safety and enhancing overall wear resistance.

[0016] (2) The impact force generated is relieved by the buffer spring, the lower mold is positioned by the buffer rod, and the impact generated is effectively absorbed by the adjusting wheel to improve the stability of the equipment;

[0017] (3) By starting the hydraulic pump, the hydraulic pump works to drive the telescopic rod to move, the telescopic rod to drive the pressing plate to move, and the pressing plate to drive the upper mold to move, so as to realize the upper mold to squeeze the lower mold and improve the injection efficiency.

[0018] (4) The connecting rod moves by pressing the plate. During injection, the lower mold moves the baffle, and the baffle moves the adjustment component. The sealing plate limits the baffle, thereby improving the sealing during injection, avoiding heat dissipation, and improving the quality of TPV material injection. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the top plate of this utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the lower mold of this utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of the upper mold of this utility model;

[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of the pressing plate of this utility model;

[0024] Figure 6 This is a schematic diagram of the three-dimensional structure of the baffle of this utility model.

[0025] In the diagram: 1. Base; 2. Support column; 3. Top plate; 4. Pressing plate; 5. Hydraulic pump; 6. Telescopic rod; 7. Upper mold; 8. Connecting rod; 9. Sealing plate; 10. Adjusting component; 11. Baffle; 12. Buffer plate; 13. Buffer spring; 14. Buffer rod; 15. Lower mold; 16. Sealing groove; 17. Adjusting wheel. Detailed Implementation

[0026] 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.

[0027] Example 1: Please refer to Figure 1 - Figure 6The present invention provides the following technical solution: a TPV slip material injection molding equipment, including a base 1, a support column 2 fixedly installed at the top of the base 1, a buffer plate 12 fixedly installed at the top of the base 1, an adjusting wheel 17 movably installed on the outer surface of the support column 2, and a sealing mechanism provided between the base 1 and the support column 2; a top plate 3 fixedly installed on the outer surface of the support column 2, a pressing plate 4 movably installed on the outer surface of the support column 2, and an injection molding mechanism provided between the top plate 3 and the pressing plate 4.

[0028] The sealing mechanism between the base 1 and the support column 2 improves the internal sealing of the equipment and ensures the stability of injection molding. The injection molding mechanism between the top plate 3 and the pressing plate 4 performs injection molding on the TPV material, thereby improving the processing efficiency of the TPV material.

[0029] Example 2: Based on Example 1, please refer to... Figure 1 - Figure 6 The upper mold 7 was also disclosed, and its specific structure is as follows: a hydraulic pump 5 is fixedly installed at the top of the top plate 3, a telescopic rod 6 is movably installed on the outer surface of the hydraulic pump 5, a pressing plate 4 is fixedly installed on the bottom surface of the telescopic rod 6, and the pressing plate 4 and the telescopic rod 6 form a lifting structure. The injection molding mechanism includes the upper mold 7, which is fixedly installed on the bottom surface of the pressing plate 4. A connecting rod 8 is fixedly installed on the bottom surface of the pressing plate 4, and the pressing plate 4 and the upper mold 7 form an integrated structure. The sealing mechanism includes an adjusting component 10, which is movably installed on the inner side of the connecting rod 8, and a sealing plate 9 is fixedly installed on the outer surface of the connecting rod 8.

[0030] By starting the hydraulic pump 5, the hydraulic pump 5 drives the telescopic rod 6 to move, the telescopic rod 6 drives the pressing plate 4 to move, and the pressing plate 4 drives the upper mold 7 to move, so that the upper mold 7 can perform extrusion injection on the lower mold 15, thereby improving the injection efficiency. In addition, the pressing plate 4 drives the connecting rod 8 to move. During injection, the lower mold 15 drives the baffle 11 to move, and the baffle 11 drives the adjustment component 10 to extend and retract. The sealing plate 9 is used to limit the baffle 11, thereby improving the sealing performance during injection, avoiding heat dissipation, and improving the quality of TPV material injection molding.

[0031] Example 3: Based on Example 1, please refer to... Figure 1 - Figure 6 The lower mold 15 was also disclosed, and its specific structure is as follows: an adjustment component 10 is movably installed on the inner side of the sealing plate 9, a baffle 11 is fixedly installed on the outer surface of the adjustment component 10, and the adjustment component 10 and the baffle 11 form a telescopic structure; a buffer spring 13 is fixedly installed on the outer surface of the buffer plate 12, the lower mold 15 is fixedly installed on the top of the buffer spring 13, and the buffer spring 13 and the lower mold 15 form a telescopic structure; a buffer rod 14 is fixedly installed on the bottom surface of the lower mold 15, and a sealing groove 16 is opened on the inner side of the lower mold 15.

[0032] By adding two types of hot melt butyl rubber into the sealing groove 16, the sealing performance of the TPV material is improved, ensuring that even if the car is submerged in water, the sealing strip of this TPV material will not leak, thus ensuring vehicle safety and enhancing overall wear resistance. The buffer spring 13 alleviates the impact force, the buffer rod 14 positions the lower mold 15, and the adjusting wheel 17 effectively absorbs the impact, improving the stability of the equipment.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A TPV slip injection molding equipment, comprising a base (1), wherein a support column (2) is fixedly installed at the top of the base (1), characterized in that: A buffer plate (12) is fixedly installed on the top of the base (1), an adjusting wheel (17) is movably installed on the outer surface of the support column (2), and a sealing mechanism is provided between the base (1) and the support column (2). A top plate (3) is fixedly installed on the outer surface of the support column (2), and a pressing plate (4) is movably installed on the outer surface of the support column (2). An injection molding mechanism is provided between the top plate (3) and the pressing plate (4).

2. The TPV slip injection molding equipment according to claim 1, characterized in that: A hydraulic pump (5) is fixedly installed at the top of the top plate (3). A telescopic rod (6) is movably installed on the outer surface of the hydraulic pump (5). A pressing plate (4) is fixedly installed on the bottom surface of the telescopic rod (6). The pressing plate (4) and the telescopic rod (6) form a lifting structure.

3. The TPV slip injection molding equipment according to claim 1, characterized in that: The injection molding mechanism includes an upper mold (7), which is fixedly installed on the bottom surface of a pressing plate (4). A connecting rod (8) is fixedly installed on the bottom surface of the pressing plate (4), and the pressing plate (4) and the upper mold (7) form an integral structure.

4. The TPV slip injection molding equipment according to claim 1, characterized in that: The sealing mechanism includes an adjustment component (10), which is movably mounted on the inner side of the connecting rod (8), and a sealing plate (9) is fixedly mounted on the outer surface of the connecting rod (8).

5. The TPV slip injection molding equipment according to claim 4, characterized in that: An adjustment component (10) is movably installed on the inner side of the sealing plate (9), and a baffle (11) is fixedly installed on the outer surface of the adjustment component (10). The adjustment component (10) and the baffle (11) form a telescopic structure.

6. The TPV slip injection molding equipment according to claim 1, characterized in that: A buffer spring (13) is fixedly installed on the outer surface of the buffer plate (12), and a lower mold (15) is fixedly installed on the top of the buffer spring (13). The buffer spring (13) and the lower mold (15) form a telescopic structure.

7. The TPV slip injection molding equipment according to claim 6, characterized in that: A buffer rod (14) is fixedly installed on the bottom surface of the lower mold (15), and a sealing groove (16) is provided on the inner side of the lower mold (15).