Improvements in hot pressing apparatus

Abstract

The utility model discloses an improved structure of hot-pressing equipment relates to hot-pressing equipment technical field, including mould body, be provided with mistake prevention subassembly and cladding subassembly on the mould body, the cladding subassembly is located the mould body outer edge for pushing and pressing skin material and skeleton to adhere, mistake prevention subassembly sets up in the mould body inside for pressing out process mistake prevention mark, the utility model discloses an improved structure of hot-pressing equipment, simplifies quality inspection process, and the qualified process is identified through plum blossom needle mark fast, and the process integrity is guaranteed, and the top block and push block ensure the cladding quality, promote the cladding flatness, guarantee appearance and hand feeling, jointly promote the stability and efficiency of door handle handrail production adaptation batch production standardization demand.

Description

Technical Field

[0001] This utility model relates to the field of hot pressing equipment technology, and in particular to an improved structure for hot pressing equipment. Background Technology

[0002] As a high-frequency contact component, the manufacturing quality of door handles and armrests directly affects the tactile experience, appearance consistency, and service life. The hot-pressing process is the core step in bonding the door handle frame to the outer skin, requiring heating to activate the pre-applied adhesive on the frame surface while simultaneously achieving precise skin coverage. Currently, the hot-pressing production of door handles and armrests, limited by traditional mold design and process control methods, faces the following technical challenges in process integrity identification, skin coverage quality control, and subsequent cutting and positioning accuracy: (1) Under the traditional production model, the control of "whether the hot pressing process has been completed" relies on manual verification of production records or visual inspection of the surface condition of workpieces. Manual verification is inefficient and difficult to meet the efficiency requirements of mass production of automotive parts. Poor identification accuracy can easily lead to missed inspections in the hot pressing process. After defective products flow into the downstream bonding process, the rework cost is high.

[0003] (2) Traditional hot press molds use overall planar pressure, which can only apply uniform pressure to the flat area of ​​the handrail surface. However, for non-flat areas such as the edge of the handrail and the arc transition, there is a problem of uneven pressure transmission, which leads to tiny gaps between the skin and the skeleton, forming bubbles or curling edges, resulting in skin covering defects. Utility Model Content

[0004] The purpose of this invention is to provide an improved structure for a hot pressing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides an improved structure for a hot pressing device, including a mold body. The mold body is provided with an error-prevention component and a covering component. The covering component is located at the outer edge of the mold body and is used to push the skin material to fit the skeleton. The error-prevention component is disposed inside the mold body and is used to mark the error during the pressing process.

[0006] Preferably, the mold body includes an upper mold and a lower mold, with the lower mold corresponding vertically to the upper mold.

[0007] Preferably, the error-proof component includes a plum blossom pin and a screw hole. The plum blossom pin is embedded in the inner wall of the lower mold cavity and is fixedly connected to the lower mold through the screw hole.

[0008] Preferably, the covering component includes a top block, a first push block, a second push block, and a third push block. The bottom of the first push block, the second push block, and the third push block are all provided with sliders. The sliders are slidably connected to a linear slide rail, and the linear slide rail is fixedly mounted on a fixed base.

[0009] Preferably, the first pusher block, the second pusher block, and the third pusher block are all driven by cylinders.

[0010] Preferably, the top block is located outside the lower mold, and its top is flush with or recessed from the surface of the lower mold cavity.

[0011] Therefore, the improved structure of the hot pressing equipment described above has the following beneficial effects: (1) During hot pressing, the anti-error component presses a unique plum blossom mark on the handrail surface with the pressure of the mold body. As a physical proof of the completion of the process, only the workpiece that has completed the hot pressing process will have this mark, which replaces manual verification and record, improves quality inspection efficiency, and intercepts the workpiece that has missed the hot pressing process from the source, avoiding subsequent bonding failure.

[0012] (2) During the hot pressing process, the covering component applies directional thrust to the difficult-to-fit areas such as the corners and arcs of the handrail. Combined with the heating of the mold body and the overall pressure, the skin and the glued skeleton are in full-range close contact, eliminating local fitting defects, improving the flatness and consistency of the skin, reducing the secondary adjustment process, and reducing rework costs.

[0013] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of an embodiment of an improved hot pressing device according to the present invention. Figure 1 ; Figure 2 This is a schematic diagram of an embodiment of an improved hot pressing device according to the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the pusher block structure of an embodiment of an improved hot pressing device according to the present invention; Figure 4 This is a schematic diagram of the slide rail structure of an improved structure embodiment of a hot pressing device according to this utility model. Figure 1 ; Figure 5 This is a schematic diagram of the slide rail structure of an improved structure embodiment of a hot pressing device according to this utility model. Figure 2 ; Figure 6 This is a schematic diagram of the upper mold structure of an embodiment of an improved hot pressing device according to the present invention; Reference numerals in the attached drawings: 1. Mold body; 11. Upper mold; 12. Lower mold; 2. Plum blossom pin; 21. Screw hole; 22. Process error prevention mark; 3. Ejector block; 41. First push block; 42. Second push block; 43. Third push block; 44. Cylinder; 45. Linear slide rail; 46. Fixed base; 47. Slider. Detailed Implementation

[0015] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0016] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0017] Example Please see Figures 1-6 This utility model provides an improved structure for a hot pressing device, including a mold body 1. The mold body 1 is provided with an anti-error component and a covering component. The covering component is located on the outer edge of the mold body 1 and is used to push the skin material to fit the skeleton. The anti-error component is set inside the mold body 1 and is used to prevent error marking 22 in the pressing process.

[0018] In the production process of door handles and armrests, hot pressing is a crucial step in activating the adhesive and preparing it for bonding. Adhesive is pre-applied to the surface of the door handle and armrest frame for subsequent bonding of leather and other surface materials. The mold body 1 heats the adhesive to its activation temperature and applies pressure to ensure tight contact between the adhesive and the frame and surface material.

[0019] The mold body 1 includes an upper mold 11 and a lower mold 12, with the lower mold 12 corresponding to the upper mold 11. The lower mold 12 cooperates with the upper mold 11 to provide the pressure and temperature required for hot pressing, activate the adhesive and assist in the surface bonding, and complete the process error prevention marking. For the top of the handrail and the raised areas, additional pressure is applied to optimize the covering quality.

[0020] The error-proofing component includes a plum blossom-shaped pin 2 and a screw hole 21. The plum blossom pin 2 is embedded in the inner wall of the cavity of the lower mold 12 and is fixedly connected to the lower mold 12 through the screw hole 21. The plum blossom pin 2 on the hot-pressing mold will press a unique plum blossom-shaped mark onto the surface of the handrail during pressing, namely the process error-proofing mark 22, serving as physical proof that the hot-pressing process has been completed. The process error-proofing mark 22 can distinguish the state of the door handle handrail and quickly identify whether the hot-pressing process has been omitted. In subsequent stages, as long as this mark is seen, it can be quickly confirmed that the workpiece has completed hot pressing without having to check production records one by one, preventing workpieces that have omitted the hot-pressing process from flowing into subsequent stages and completely eliminating the situation of "omitted hot pressing". The tip of the plum blossom pin 2 protrudes 0.1~0.3mm, the depth of the mark is clearly distinguishable and does not damage the workpiece.

[0021] The covering assembly includes a top block 3, a first push block 41, a second push block 42, and a third push block 43, which can be assigned to different areas and directly contact the skin, filling the gap between the skin and the skeleton through directional pushing. Each of the first push block 41, the second push block 42, and the third push block 43 has a slider 47 fixedly mounted at its bottom. The slider 47 is slidably connected to a linear slide rail 45, which is fixedly mounted on a fixed base 46. The linear slide rail provides precise guidance for the slider, and the fixed base ensures the slide rail is in a fixed position.

[0022] The first push block 41, the second push block 42 and the third push block 43 are all driven by the cylinder 44. The cylinder 44 provides a power source for the push blocks, drives the push blocks to extend and retract, and controls the pressure applied by the push blocks by adjusting the air pressure to adapt to different skin materials.

[0023] The top block 3 is located outside the lower mold 12, and its top is flush with or slightly concave with the cavity surface of the lower mold 12. The top block 3 matches the edge of the armrest frame.

[0024] The door handle armrest is enhanced in feel and appearance by covering it with a skin. During the hot pressing process, the coordinated action of the first push block 41, the second push block 42, the third push block 43 and the top block, combined with the precise temperature and pressure control of the mold body, fully activates the adhesive between the skin and the frame. This helps the skin material to tightly cover the surface of the door handle armrest frame, ensuring that the covering layer is flat and wrinkle-free.

[0025] Therefore, this utility model adopts the above-mentioned hot pressing equipment with an improved structure, simplifies the quality inspection process, quickly identifies qualified processes through plum blossom needle marks, ensures the integrity of the process, pushes the blocks to ensure the quality of the covering, improves the flatness of the covering, and guarantees the appearance and feel, and the top block provides precise positioning for subsequent processing, improving cutting accuracy and efficiency, and together enhances the stability and efficiency of door handle and handrail production to meet the standardization requirements of mass production.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. An improved structure for a hot pressing device, characterized in that: The mold body includes a mold body, on which an error-prevention component and a covering component are provided. The covering component is located on the outer edge of the mold body and is used to push the skin material to fit the skeleton. The error-prevention component is located inside the mold body and is used to mark the error during the pressing process.

2. The improved structure of the hot pressing equipment according to claim 1, characterized in that: The mold body includes an upper mold and a lower mold, with the lower mold corresponding to the upper mold vertically.

3. The improved structure of the hot pressing equipment according to claim 2, characterized in that: The error-proof component includes a plum blossom pin and a screw hole. The plum blossom pin is embedded in the inner wall of the lower mold cavity and is fixedly connected to the lower mold through the screw hole.

4. The improved structure of the hot pressing equipment according to claim 3, characterized in that: The covering component includes a top block, a first push block, a second push block, and a third push block. The bottom of the first push block, the second push block, and the third push block are all provided with sliders. The sliders are slidably connected to a linear slide rail, which is fixedly mounted on a fixed base.

5. The improved structure of the hot pressing equipment according to claim 4, characterized in that: The first pusher block, the second pusher block, and the third pusher block are all driven by cylinders.

6. The improved structure of the hot pressing equipment according to claim 4, characterized in that: The top block is located outside the lower mold, and its top is flush with or recessed from the surface of the lower mold cavity.

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