Automobile EPP steering wheel foaming mold with compact structure

By designing a combination of opening and closing mechanism and locking mechanism in the automotive steering wheel mold, the problem of poor sealing during the molding process is solved, and higher safety and production efficiency are achieved.

CN222628398UActive Publication Date: 2025-03-18SUZHOU ZEHAN AUTOMOTIVE PARTS
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Patent Information

Application Number
CN202421201949.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-30
Publication Date
2025-03-18
Estimated Expiration
2034-05-30

AI Technical Summary

Technical Problem

The existing automotive steering wheel molds lack tightening during the molding process, resulting in poor sealing, liquid overflow and may lead to adhesion between the upper and lower molds, posing safety hazards.

Method used

A tight structure of automotive EPP steering wheel foam mold is designed, using a combination of opening and closing mechanism and locking mechanism. Through the cooperation of locking, opening and closing components and locking components, the tight connection and convenient opening and closing of the upper mold and the lower mold are achieved.

Benefits of technology

It improves the sealing of the mold, reduces the phenomenon of EPP overflowing between the molds, and improves the safety and production efficiency of the steering wheel mold.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automobile EPP steering wheel foaming mold with a compact structure, which belongs to the technical field of steering wheel molds and comprises a mold lower shell, two lock catches are fixedly connected to the front end of the mold lower shell, and an opening and closing mechanism is fixedly connected to the left wall and the right wall of an inner cavity of the mold lower shell together. The lower part of the opening and closing mechanism is fixedly connected with a mold upper shell, the bottom wall of an inner cavity at the upper end of the mold upper shell is fixedly connected with an injection port, the front end of the mold upper shell is fixedly connected with two locking mechanisms, and the opening and closing between the upper mold and the lower mold can be more convenient through the matching of the opening and closing mechanism and the locking mechanisms; according to the EPP steering wheel mold, the produced EPP steering wheel model can be rapidly taken out of the mold, the sealing performance between the upper mold and the lower mold can be improved, the phenomenon that errors occur to the final model due to the fact that EPP overflows from a gap between the upper mold and the lower mold is reduced, the good sealing performance is achieved, and the practicability of the steering wheel mold is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of steering wheel moulds, and more specifically to a compactly structured automobile EPP steering wheel foaming mould. Background Art

[0002] Steering wheel mold is a very critical mold in the automobile manufacturing process. Its key characteristics include materials, structure, precision and processing technology. Only by reasonable, precise and rigorous design and production in these aspects can high-quality and high-precision steering wheel molds be produced to meet the production needs of the automobile manufacturing industry.

[0003] China Patent Authorization Announcement No.: CN212764627U provides an automobile steering wheel injection mold. This solution can introduce water in the water tank into the first spiral tube and the second spiral tube through the cooling mechanism set inside the upper module and the cooling mechanism set inside the lower module, so that the plastic solution injected into the upper mold cavity and the lower mold cavity can be quickly cooled by water, and the forming speed can be accelerated, thereby improving the overall production effect of the product. At the same time, the cooling mechanism and the cooling mechanism realize the recycling of water to avoid wasting water resources. However, there are still the following defects in the specific implementation process: the device lacks the fastening of the mold during the steering wheel molding process, and the mold has poor sealing, which will cause liquid overflow and thus adhere the upper mold and the lower mold, posing a safety hazard.

[0004] Therefore, in view of the above problems, a compact automotive EPP steering wheel foaming mold is proposed. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a compact automobile EPP steering wheel foaming mold, which can achieve the functions of good sealing, simple use and high safety.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A compactly structured automotive EPP steering wheel foaming mold comprises a mold lower shell, the front end of the mold lower shell is fixedly connected to two lock buckles, the left and right walls of the inner cavity of the mold lower shell are commonly fixedly connected to an opening and closing mechanism, the lower part of the opening and closing mechanism is fixedly connected to a mold upper shell, the bottom wall of the inner cavity at the upper end of the mold upper shell is fixedly connected to an injection port, and the front end of the mold upper shell is fixedly connected to two locking mechanisms.

[0010] Furthermore, the opening and closing mechanism includes a rocker, the outer surface of the rocker is rotatably connected to the inner surface of the right end of the lower shell of the mold, the right end of the rocker is fixedly connected to a transmission assembly, the outside of the transmission assembly is fixedly connected to an opening and closing assembly, the upper end of the opening and closing assembly is fixedly connected to a splint, and the outer surface of the rocker is fixedly connected to a positioning assembly.

[0011] Furthermore, the transmission assembly includes a connecting rod, a left end of the connecting rod is fixedly connected to a right end of the rocker, an outer surface of the connecting rod is fixedly connected to a connecting rod, and an inner surface of the connecting rod is fixedly connected to a transmission rod.

[0012] Furthermore, the opening and closing assembly includes a driving plate, the inner surface of the driving plate is fixedly connected to the outer surface of the transmission rod, and the left end of the driving plate is fixedly connected to a cylindrical slider.

[0013] Furthermore, the positioning assembly includes a positioning plate, the left end of which is fixedly connected to the left wall of the inner cavity of the lower shell of the mold, the right end of which is provided with a Y-shaped slide groove, and the right end of which is provided with two positioning holes.

[0014] Furthermore, the locking mechanism includes a connecting plate, the rear end of the connecting plate is fixedly connected to the front end of the mold upper shell, the lower end of the connecting plate is fixedly connected to a placement groove, and the inner cavity of the placement groove is slidably connected to a locking component.

[0015] Furthermore, the locking assembly includes two locking tongues, and the front and rear ends of the two locking tongues are fixedly connected to two sliding bars, the ends of the two locking tongues close to each other are fixedly connected to four springs, and the ends of the two locking tongues close to each other are fixedly connected to a telescopic rod.

[0016] Furthermore, the outer surface of the cylindrical slider is slidably connected to the inner surface of the Y-shaped slide groove, and the outer surface of the transmission rod is slidably connected to the inner surface of the Y-shaped slide groove.

[0017] 3. Beneficial effects

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] (1) This solution can make the opening and closing between the upper mold and the lower mold more convenient through the opening and closing mechanism, which can reduce the contact between workers and the mold shell, reduce the possibility of workers being scalded during operation, and improve the safety of the automobile EPP steering wheel foaming mold.

[0020] (2) This solution improves the sealing between the upper mold and the lower mold by cooperating with the lock and locking mechanism, reduces the phenomenon of EPP overflowing from the gap between the two molds and causing errors in the final model, and improves the practicality of the steering wheel mold.

[0021] (3) This solution can quickly remove the produced EPP steering wheel model from the mold by cooperating with the opening and closing mechanism and the locking mechanism, thereby improving the production efficiency of the EPP steering wheel model by increasing the number of times the mold is used. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the overall structure of the utility model from another perspective;

[0024] Figure 3 This is a schematic diagram of the opening and closing mechanism of the utility model;

[0025] Figure 4 It is a schematic diagram of the structure of the transmission component and the opening and closing component of the utility model;

[0026] Figure 5 This is a schematic diagram of a positioning component of the utility model;

[0027] Figure 6 This is a schematic diagram of the locking mechanism of the utility model;

[0028] Figure 7 It is a schematic diagram of the locking assembly of the utility model.

[0029] Description of the numbers in the figure:

[0030] 1. Mold lower shell; 2. Lock; 3. Opening and closing mechanism; 31. Rocker; 32. Transmission assembly; 321. Connecting rod; 322. Connecting rod; 323. Transmission rod; 33. Opening and closing assembly; 331. Drive plate; 332. Cylindrical slider; 34. Clamp; 35. Positioning assembly; 351. Positioning plate; 352. Y-shaped slide groove; 353. Positioning hole; 4. Mold upper shell; 5. Injection port; 6. Locking mechanism; 61. Connecting plate; 62. Placement slot; 63. Locking assembly; 631. Lock tongue; 632. Slide bar; 633. Spring; 634. Telescopic rod. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0032] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] Example:

[0035] See also Figure 1-7 A compact automobile EPP steering wheel foaming mold comprises a mold lower shell 1, two lock buckles 2 are fixedly connected to the front end of the mold lower shell 1, an opening and closing mechanism 3 is fixedly connected to the left and right walls of the inner cavity of the mold lower shell 1, an upper mold shell 4 is fixedly connected to the lower part of the opening and closing mechanism 3, an injection port 5 is fixedly connected to the bottom wall of the inner cavity at the upper end of the upper mold shell 4, and two locking mechanisms 6 are fixedly connected to the front end of the upper mold shell 4.

[0036] In this solution, the mold lower shell 1 and the mold upper shell 4 are connected together by the opening and closing mechanism 3, two locking mechanisms 6 and two lock buckles 2, and EPP is filled into the cavity formed between the mold lower shell 1 and the mold upper shell 4 through the injection port 5.

[0037] See also Figure 3-5The opening and closing mechanism 3 includes a rocker 31, the outer surface of the rocker 31 is rotatably connected to the inner surface of the right end of the mold lower shell 1, the right end of the rocker 31 is fixedly connected to a transmission assembly 32, the outer surface of the transmission assembly 32 is fixedly connected to an opening and closing assembly 33, the upper end of the opening and closing assembly 33 is fixedly connected to a clamping plate 34, the outer surface of the rocker 31 is fixedly connected to a positioning assembly 35, the transmission assembly 32 includes a connecting rod 321, the left end of the connecting rod 321 is fixedly connected to the right end of the rocker 31, the outer surface of the connecting rod 321 is fixedly connected to a connecting rod 322, and the inner surface of the connecting rod 322 is fixedly connected to a transmission rod 323. The combining component 33 includes a driving plate 331, the inner surface of the driving plate 331 is fixedly connected to the outer surface of the transmission rod 323, the left end of the driving plate 331 is fixedly connected to a cylindrical slider 332, the positioning component 35 includes a positioning plate 351, the left end of the positioning plate 351 is fixedly connected to the left wall of the inner cavity of the mold lower shell 1, the right end of the positioning plate 351 is provided with a Y-shaped slide groove 352, the right end of the positioning plate 351 is provided with two positioning holes 353, the outer surface of the cylindrical slider 332 is slidably connected to the inner surface of the Y-shaped slide groove 352, and the outer surface of the transmission rod 323 is slidably connected to the inner surface of the Y-shaped slide groove 352.

[0038] The present invention allows the connecting rod 321 to rotate by shaking the rocker 31. The rotation of the connecting rod 321 will drive the connecting rod 322, so that the transmission rod 323 and the cylindrical slider 332 can slide upward together in the inner cavity of the Y-shaped slot 352. At the beginning, the two slide upward along the vertical section of the Y-shaped slot 352 at the same time to lift the barrel cover 4. When the cylindrical slider 332 slides to the uppermost end of the vertical section of the Y-shaped slot 352, the two ends of the transmission rod 323 are just at the intersection of the vertical section and the arc section of the Y-shaped slot 352. At this time, as the rocker 31 continues to shake, the two ends of the transmission rod 323 will slide upward along the arc section of the Y-shaped slot 352 until they slide to the top of the arc section of the Y-shaped slot 352. At this time, the mold upper shell 4 will be flipped over, the mold lower shell 1 and the mold upper shell 4 will be opened, and the rocker 31 will be shaken in the opposite direction, and the mold lower shell 1 and the mold upper shell 4 will be closed.

[0039] See also Figure 6-7 The locking mechanism 6 includes a connecting plate 61, the rear end of the connecting plate 61 is fixedly connected to the front end of the mold upper shell 4, the lower end of the connecting plate 61 is fixedly connected with a placement groove 62, and the inner cavity of the placement groove 62 is slidably connected with a locking component 63, and the locking component 63 includes two locking tongues 631, and the front and rear ends of the two locking tongues 631 are fixedly connected with two sliding bars 632, the ends of the two locking tongues 631 close to each other are fixedly connected with four springs 633, and the ends of the two locking tongues 631 close to each other are fixedly connected with a telescopic rod 634.

[0040] This solution uses two locking tongues 631 to be stuck in the lower ends of the two lock buckles 2, so that the mold lower shell 1 and the mold upper shell 4 can be tightly fitted together, thereby improving the sealing of the mold. When the mold upper shell 4 is closed with the mold lower shell 1 under the action of the opening and closing mechanism 3, the two locking tongues 631 will pass through the inner cavity of the two lock buckles 2. At the moment of passing through, due to the squeezing of the inner wall of the lock buckle 2, the two locking tongues 631 will approach each other in the inner cavity of the placement groove 62, which will cause the four springs 633 and the telescopic rod 634 to be compressed together. At the moment the two locking tongues 631 pass through the inner cavity of the two lock buckles 2, they will be stuck in the lower end of the lock buckle 2 under the action of the four springs 633 and the telescopic rod 634, so that the mold lower shell 1 and the mold upper shell 4 are tightly connected together.

[0041] Working principle: When the mold needs to be used, first shake the rocker 31 to rotate the connecting rod 321. The rotation of the connecting rod 321 will drive the connecting rod 322, so that the transmission rod 323 and the cylindrical slider 332 can slide upward together in the inner cavity of the Y-shaped slide groove 352. At the beginning, the two slide upward along the vertical section of the Y-shaped slide groove 352 at the same time to lift the barrel cover 4. When the cylindrical slider 332 slides to the uppermost end of the vertical section of the Y-shaped slide groove 352, the two ends of the transmission rod 323 are just at the intersection of the vertical section and the arc section of the Y-shaped slide groove 352. At this time, as the rocker 31 continues to shake, the two ends of the transmission rod 323 will slide upward along the arc section of the Y-shaped slide groove 352 until they slide to the top of the arc section of the Y-shaped slide groove 352. At this time, the mold upper shell 4 will be turned over, the mold lower shell 1 and the mold upper shell 4 will be opened, and the interior will be checked. Check for foreign matter and shake the joystick 31 in the opposite direction after the inspection to allow the two locking tongues 631 to pass through the inner cavity of the two lock buckles 2. At the moment of passing through, the two locking tongues 631 will be squeezed by the inner wall of the lock buckle 2, so that the two locking tongues 631 will be close to each other in the inner cavity of the placement groove 62, and the four springs 633 and the telescopic rod 634 will be compressed together. When the two locking tongues 631 pass through the inner cavity of the two lock buckles 2, they will be stuck at the lower end of the lock buckle 2 under the action of the four springs 633 and the telescopic rod 634, and the mold lower shell 1 and the mold upper shell 4 will be tightly connected together. At this time, EPP is injected into the internal cavity of the mold lower shell 1 and the mold upper shell 4 through the injection port 5. After cooling is completed, the two locking tongues 631 are squeezed inward and the joystick 31 is shaken at the same time to make the mold upper shell 4 flip over again. At this time, the EPP steering wheel model can be taken out for further processing.

[0042] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A compact automotive EPP steering wheel foaming mold, comprising a mold lower shell (1), characterized in that: The front end of the mold lower shell (1) is fixedly connected to two lock buckles (2); the left and right walls of the inner cavity of the mold lower shell (1) are commonly fixedly connected to an opening and closing mechanism (3); the lower part of the opening and closing mechanism (3) is fixedly connected to the mold upper shell (4); the bottom wall of the inner cavity at the upper end of the mold upper shell (4) is fixedly connected to an injection port (5); the front end of the mold upper shell (4) is fixedly connected to two locking mechanisms (6); the opening and closing mechanism (3) comprises a rocker (31); the outer surface of the rocker (31) is rotatably connected to the inner surface of the right end of the mold lower shell (1); the right end of the rocker (31) is fixedly connected to a transmission component (32); the outside of the transmission component (32) is fixedly connected to an opening and closing component (33); the upper end of the opening and closing component (33) is fixedly connected to a clamping plate (34); and the outer surface of the rocker (31) is fixedly connected to a positioning component (35).

2. The compact structured automotive EPP steering wheel foaming mold according to claim 1, characterized in that: The transmission assembly (32) comprises a connecting rod (321), the left end of the connecting rod (321) is fixedly connected to the right end of the rocker (31), the outer surface of the connecting rod (321) is fixedly connected to a connecting rod (322), and the inner surface of the connecting rod (322) is fixedly connected to a transmission rod (323).

3. The compact structured automotive EPP steering wheel foaming mold according to claim 2, characterized in that: The opening and closing assembly (33) comprises a driving plate (331), the inner surface of the driving plate (331) is fixedly connected to the outer surface of the transmission rod (323), and the left end of the driving plate (331) is fixedly connected to a cylindrical slider (332).

4. The compact structured automotive EPP steering wheel foaming mold according to claim 3, characterized in that: The positioning assembly (35) comprises a positioning plate (351), the left end of which is fixedly connected to the left wall of the inner cavity of the mold lower shell (1), the right end of which is provided with a Y-shaped slide groove (352), and the right end of which is provided with two positioning holes (353).

5. The compact structured automotive EPP steering wheel foaming mold according to claim 1, characterized in that: The locking mechanism (6) comprises a connecting plate (61), the rear end of the connecting plate (61) is fixedly connected to the front end of the mold upper shell (4), the lower end of the connecting plate (61) is fixedly connected to a placement groove (62), and the inner cavity of the placement groove (62) is slidably connected to a locking component (63).

6. The compact structured automotive EPP steering wheel foaming mold according to claim 5, characterized in that: The locking assembly (63) comprises two locking tongues (631), the front and rear ends of the two locking tongues (631) are fixedly connected to two slide bars (632), the ends of the two locking tongues (631) close to each other are fixedly connected to four springs (633), and the ends of the two locking tongues (631) close to each other are fixedly connected to a telescopic rod (634).

7. The compact structured automotive EPP steering wheel foaming mold according to claim 4, characterized in that: The outer surface of the cylindrical slider (332) is slidably connected to the inner surface of the Y-shaped slide groove (352), and the outer surface of the transmission rod (323) is slidably connected to the inner surface of the Y-shaped slide groove (352).

Citation Information

Patent Citations

  • Automobile steering wheel injection mold

    CN212764627U