Coating forming device for special-shaped chair back plate
By combining guide blocks and guide grooves and using different lifting methods, the problem of inconvenient mold assembly and disassembly was solved, thus improving the processing efficiency of irregularly shaped chair back panels.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU MINGFEI AUTO PARTS CO LTD
- Filing Date
- 2024-12-31
- Publication Date
- 2026-05-15
AI Technical Summary
The existing overmolding equipment has heavy upper and lower molds that are inconvenient to disassemble and assemble, resulting in low processing efficiency for irregularly shaped car seat back panels and frequent mold replacements that affect production efficiency.
The combination of the first guide block and the first guide groove, and the second guide block and the second guide groove, combined with the lifting method, facilitates the disassembly and installation of the upper and lower molds. The movement of the mold is assisted by the first and second lifting electric cylinders.
It simplifies the mold assembly and disassembly process, improves processing efficiency and convenience, and enhances the practicality of the device.
Smart Images

Figure CN224240176U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a molding device, specifically a wrapping molding device for irregularly shaped chair back panels. Background Technology
[0002] Car seat back panels come in a variety of shapes and structures. To meet specific requirements, some car seat back panels need to be processed into irregular shapes. The processing of these irregularly shaped car seat back panels is quite complicated and requires a special overmolding device. The upper and lower molds are used for hot pressing to form the panels. However, the production volume required for irregularly shaped car seat back panels is often low. Therefore, it is necessary to frequently change the upper and lower molds used for forming. However, the upper and lower molds in existing overmolding devices are often heavy and difficult to disassemble and assemble. Furthermore, frequent mold changes will greatly affect the processing efficiency. Therefore, it is particularly important to design an overmolding device for irregularly shaped seat back panels to solve this problem. Summary of the Invention
[0003] To solve the above problems, this utility model designs a wrapping molding device for irregularly shaped chair back panels. By cooperating the first guide block with the first guide groove and the second guide block with the second guide groove, when disassembling the upper and lower molds, the molds can be moved to the upper and lower auxiliary support seats first, and then removed by lifting. This facilitates disassembly and increases practicality.
[0004] To solve the above-mentioned technical problems, this utility model provides a wrapping molding device for irregularly shaped chair back panels, characterized in that it includes a base, a worktable, a top seat, an upper mold, and a lower mold. The worktable is horizontally arranged on top of the base and integrated with it. The top seat is located directly above the worktable and connected to it via telescopic hydraulic rods located at four angles at its bottom. The upper mold consists of an upper support plate and an upper mold body located at the bottom of the upper support plate. A first guide block is also provided on the top of the upper support plate and integrated with it. An upper auxiliary support seat is also provided on the front side of the top seat and integrated with it. A first guide groove is formed at the bottom of the upper auxiliary support seat and the bottom of the top seat relative to the first guide block. The first guide block is in the shape of an inverted convex character. The shape of the first guide groove matches the first guide block. The front end of the first guide groove in the bottom of the upper auxiliary support seat is open. The upper support plate... The upper mold has first mounting holes at its four corners for installation. The bottom of the top seat has a matching first connecting hole relative to the first mounting hole. The lower mold consists of a lower support plate and a lower mold body on top of the lower support plate. The bottom of the lower support plate has a U-shaped second guide block. The front of the worktable has an integrated lower auxiliary support seat. The top of the worktable and the top of the lower auxiliary support seat have second guide grooves relative to the second guide block. The shape of the second guide groove matches the second guide block. The front end of the second guide groove in the lower auxiliary support seat is also open. The lower support plate has second mounting holes at its four corners for installation. The top of the worktable has a matching second connecting hole relative to the second mounting hole. The bottom of the upper mold body and the top of the lower mold body both have forming grooves matching the irregularly shaped chair back panel.
[0005] Further: The top of the upper support plate is provided with a first lifting ring assembly, the bottom of the top seat is provided with a third guide groove relative to the position of the first lifting ring assembly, the bottom of the upper auxiliary support seat is provided with a fourth guide groove relative to the position of the first lifting ring assembly, the rear end of the fourth guide groove is connected to the third guide groove, the front end of the fourth guide groove is open, and the fourth guide groove at the front end of the upper auxiliary support seat is through from top to bottom.
[0006] Furthermore: A first lifting electric cylinder is installed on the top of the top seat. The output shaft of the first lifting electric cylinder is connected to the transmission plate. A transmission rod is connected to the bottom of each of the four corners of the transmission plate. The transmission rod passes through the top seat and is connected to the upper protective housing frame.
[0007] Furthermore, a second lifting ring assembly is provided on the lower support plate around the lower mold body, and a lower protective shell frame is also provided on the outer side of the lower mold body. The lower protective shell frame is connected to a second lifting electric cylinder installed at the bottom of the workbench.
[0008] Furthermore, electric heating tubes are embedded in both the upper mold body and the lower mold body around the forming groove.
[0009] With the above structure, this utility model, through the cooperation of the first guide block and the first guide groove and the cooperation of the second guide block and the second guide groove, allows the upper and lower molds to be moved to the upper and lower auxiliary support seats first when disassembling them, and then removed by lifting, thus facilitating disassembly; in addition, this design also has the advantages of simple structure, convenient use and practical efficiency. Attached Figure Description
[0010] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0011] Figure 1 This is a schematic diagram of the structure of this utility model.
[0012] Figure 2 This is a partial structural diagram of the present invention. Detailed Implementation
[0013] like Figure 1 and Figure 2The device shown is a wrapping molding apparatus for an irregularly shaped chair back panel, comprising a base 1, a worktable 2, a top seat 3, an upper mold, and a lower mold. The worktable is horizontally positioned on top of the base and integrated with it. The top seat is positioned directly above the worktable and connected to it via telescopic hydraulic rods 8 located at four corners at its bottom. The upper mold consists of an upper support plate 14 and an upper mold body 13 located at the bottom of the upper support plate. A first guide block 17 is also integrated with the top of the upper support plate. An upper auxiliary support seat 6 is also integrated with the front side of the top seat. A first guide groove is formed at the bottom of the upper auxiliary support seat and the bottom of the top seat relative to the first guide block. The first guide block is inverted convex shape, and the shape of the first guide groove matches the first guide block. The front end of the first guide groove in the bottom of the upper auxiliary support seat is open. Openings are formed at the four corners of the upper support plate. The upper mold is provided with a first mounting hole for installation. The bottom of the top seat is provided with a first connecting hole that matches the first mounting hole. The lower mold is composed of a lower support plate and a lower mold body 12 set on the top of the lower support plate. The bottom of the lower support plate is provided with a convex second guide block. The front side of the worktable is provided with a lower auxiliary support seat 5 integrated with it. The top of the worktable and the top of the lower auxiliary support seat are provided with a second guide groove that matches the second guide block. The shape of the second guide groove matches the second guide block. The front end of the second guide groove in the lower auxiliary support seat is also open. The four corners of the lower support plate are provided with second mounting holes for installation. The top of the worktable is provided with a second connecting hole that matches the second mounting hole. The bottom of the upper mold body and the top of the lower mold body are provided with forming grooves that match the irregular chair back panel. This invention, through the cooperation of the first guide block and the first guide groove, and the cooperation of the second guide block and the second guide groove, allows the upper and lower molds to be moved to the upper and lower auxiliary support seats before being removed by lifting, thus facilitating disassembly. Furthermore, when installing new upper and lower molds, this design allows them to be suspended on the upper and lower auxiliary support seats before sliding onto the top seat and the worktable for installation, thus facilitating installation.
[0014] like Figure 2 The top of the upper support plate is provided with a first lifting ring assembly 15. The bottom of the top seat is provided with a third guide groove relative to the position of the first lifting ring assembly. The bottom of the upper auxiliary support seat is provided with a fourth guide groove relative to the position of the first lifting ring assembly. The rear end of the fourth guide groove is connected to the third guide groove. The front end of the fourth guide groove is open. The fourth guide groove at the front end of the upper auxiliary support seat is vertically through.
[0015] like Figure 1 and Figure 2 The top of the top seat is equipped with a first lifting electric cylinder 7. The output shaft of the first lifting electric cylinder is connected to the transmission plate 4. A transmission rod 16 is connected to the bottom of each of the four corners of the transmission plate. The transmission rods pass through the top seat and are connected to the upper protective housing frame 9. When disassembling or assembling the upper mold, the first lifting electric cylinder must be activated first to lower the upper protective housing frame before disassembly or assembly can be performed.
[0016] like Figure 1 A second lifting ring assembly is installed on the lower support plate around the lower mold body. A lower protective shell frame 10 is also installed on the outer side of the lower mold body. The lower protective shell frame is connected to a second lifting electric cylinder 11 installed at the bottom of the workbench. When disassembling or assembling the upper and lower molds, the second lifting electric cylinder must be activated first to raise the lower protective shell frame before disassembly or assembly.
[0017] Electric heating tubes are embedded in both the upper mold body and the lower mold body around the aforementioned molding groove.
[0018] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should be considered within its protection scope.
Claims
1. A wrapping molding device for irregularly shaped chair back panels, characterized in that: The system includes a base (1), a worktable (2), a top seat (3), an upper mold, and a lower mold. The worktable is horizontally positioned on top of the base and integrated with it. The top seat is positioned directly above the worktable and connected to it via telescopic hydraulic rods (8) located at the bottom of four angles. The upper mold consists of an upper support plate (14) and an upper mold body (13) located at the bottom of the upper support plate. The top of the upper support plate is also equipped with a first guide block (17) integrated with it. The front side of the top seat is also equipped with an upper auxiliary support seat (6) integrated with it. The bottom of the upper auxiliary support seat and the bottom of the top seat are provided with a first guide groove relative to the position of the first guide block. The first guide block is in the shape of an inverted convex character. The shape of the first guide groove matches the first guide block. The front end of the first guide groove inside the bottom of the upper auxiliary support seat is open. Useful openings are provided at the four corners of the upper support plate. The first mounting hole is provided at the bottom of the top seat, which is located relative to the first mounting hole. The lower mold is composed of a lower support plate and a lower mold body (12) located on the top of the lower support plate. The bottom of the lower support plate is provided with a convex second guide block. The front side of the worktable is provided with a lower auxiliary support seat (5) integrated with it. The top of the worktable and the top of the lower auxiliary support seat are provided with a second guide groove relative to the second guide block. The shape of the second guide groove matches the second guide block. The front end of the second guide groove in the lower auxiliary support seat is also open. The four corners of the lower support plate are provided with second mounting holes for installation. The top of the worktable is provided with a second connecting hole relative to the second mounting hole. The bottom of the upper mold body and the top of the lower mold body are provided with forming grooves that match the irregular chair back panel.
2. The covering and molding device for irregularly shaped chair back panels according to claim 1, characterized in that: The top of the upper support plate is provided with a first lifting ring assembly (15). The bottom of the top seat is provided with a third guide groove relative to the position of the first lifting ring assembly. The bottom of the upper auxiliary support seat is provided with a fourth guide groove relative to the position of the first lifting ring assembly. The rear end of the fourth guide groove is connected to the third guide groove. The front end of the fourth guide groove is open. The fourth guide groove at the front end of the upper auxiliary support seat is vertically penetrating.
3. The covering and molding device for irregularly shaped chair back panels according to claim 1, characterized in that: The top of the top seat is equipped with a first lifting electric cylinder (7), the output shaft end of the first lifting electric cylinder is connected to the transmission plate (4), and a transmission rod (16) is connected to the bottom of each of the four angles of the transmission plate. The transmission rod passes through the top seat and is connected to the upper protective shell frame (9).
4. The overmolding device for irregularly shaped chair back panels according to claim 1, characterized in that: A second lifting ring assembly is provided on the lower support plate around the lower mold body. A lower protective shell frame (10) is also provided on the outside of the lower mold body. The lower protective shell frame is connected to a second lifting electric cylinder (11) installed at the bottom of the workbench.
5. The overmolding device for irregularly shaped chair back panels according to claim 1, characterized in that: Electric heating tubes are embedded in both the upper mold body and the lower mold body around the forming groove.