Automatic pressing device for automobile tail door trim paillettes

Abstract

The invention provides an automobile tail door trim paillette automatic pressing device which comprises an upper die plate and a lower die plate, a die cavity is formed between the upper die plate and the lower die plate, and a trim is pressed and formed in the die cavity. A lower die groove is formed in the side, close to the upper die plate, of the lower die plate, a two-section ejection mechanism is arranged on the side, away from the upper die plate, of the lower die groove, and an ejector pin arranged on the two-section ejection mechanism penetrates through the lower die plate and extends into the lower die groove. The second-section ejection mechanism ejects the plaque out in a segmented mode. According to the automobile tail door trim paillette pressing device, the two-section ejection mechanism is arranged, segmented ejection of the trim can be achieved, the problem that in a traditional ejection mode, due to uneven stress, the trim deforms or the paillette falls off is effectively solved, automation of the automobile tail door trim paillette pressing process is achieved, manual intervention is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the field of new energy vehicle manufacturing technology, specifically relating to an automatic pressing device for automotive tailgate trim pieces. Background Technology

[0002] With the rapid development of the new energy vehicle industry, consumers are increasingly demanding higher quality exterior designs and more aesthetically pleasing interiors. As a crucial component of the vehicle's exterior, the tailgate trim directly impacts the vehicle's visual appeal. In recent years, designs combining glass or glass-like optical effects with plastic trim panels have become increasingly popular in high-end models. These glittery materials not only possess high gloss and light transmittance but also achieve various light and shadow effects through surface textures, significantly enhancing the visual appeal of the tailgate area.

[0003] However, the bonding of decorative panels and sequins still faces numerous challenges in existing production processes. Traditional methods mainly rely on manual or semi-automated equipment for bonding, with the specific process including multiple steps such as manual feeding, positioning, pre-pressing, and final pressing. Because sequins are inherently fragile, have high surface hardness, and are extremely sensitive to pressure uniformity, manual operation makes it difficult to ensure consistent bonding positions, easily leading to defects such as misalignment, bubbles, and even breakage. Furthermore, plastic decorative panels undergo certain thermal deformation and dimensional fluctuations after injection molding, further increasing the difficulty of matching them with rigid sequins.

[0004] Therefore, the above problems urgently need to be solved. Summary of the Invention

[0005] Purpose of the invention: In order to overcome the above shortcomings, the present invention provides an automatic pressing device for automotive tailgate trim panel sequins. By setting a two-stage ejection mechanism, the trim panel can be ejected in stages, which effectively avoids the problems of trim panel deformation or sequin detachment caused by uneven force in the traditional ejection method. It realizes the automation of the automotive tailgate trim panel sequin pressing process, reduces manual intervention, and improves production efficiency.

[0006] Technical Solution: To achieve the above objectives, this invention provides an automatic pressing device for automotive tailgate trim sequins, comprising an upper mold plate and a lower mold plate, with a mold cavity between the upper and lower mold plates, where the trim plate is pressed and formed. A lower mold groove is provided on the side of the lower mold plate near the upper mold plate, and a two-stage ejection mechanism is provided on the side of the lower mold groove away from the upper mold plate. Ejector pins in the two-stage ejection mechanism pass through the lower mold plate and extend into the lower mold groove. The two-stage ejection mechanism ejects the trim plate in segments. Electric heating tubes are built into both the upper and lower mold plates, and both mold plates need to be heated to 120°C-150°C before hot pressing. Temperature sensors and temperature controllers are installed in both the lower and upper mold plates, forming a closed-loop control with the electric heating tubes for precise mold temperature control. Before the upper and lower mold plates are closed, some of the ejector pins in the two-stage ejection mechanism retract into the lower mold plate to form a positioning groove. The sequins are placed into the positioning groove, and the material sheet is laid in the lower mold groove. Then the mold is closed, and pressure is applied to the material sheet. Under the influence of heat and pressure, the material softens and flows, filling the entire mold cavity. It is then held under pressure to solidify, forming the final product shape. Finally, the mold is opened, and a two-stage ejection mechanism removes the product from the mold.

[0007] This invention, by setting a two-stage ejection mechanism, enables the segmented ejection of the trim panel, effectively avoiding the problems of trim panel deformation or sequin detachment caused by uneven force in traditional ejection methods. It automates the process of pressing sequins on automotive tailgate trim panels, reduces manual intervention, and improves production efficiency.

[0008] Furthermore, in the aforementioned automatic pressing device for automotive tailgate trim sequins, the two-stage ejection mechanism includes an ejector plate, an ejector base plate, a first ejector pin, and a second ejector pin assembly. The first ejector pin is connected to a countersunk hole in the ejector plate, and its bottom end abuts against the ejector base plate. The ejector base plate has a groove with its opening at the bottom. The bottom of the second ejector pin assembly is slidably connected to the groove, and a plug is threadedly connected to the groove opening. The plug confines the second ejector pin assembly within the groove, and a damping mechanism is provided between the plug and the lower ends of the second ejector pin assembly. The second ejector pin assembly passes through a through hole in the ejector plate, and its lower end is connected to the groove in the ejector base plate. The second ejector pin assembly extends into the mold cavity through the ejector plate. The bottom of the ejector base plate is connected to the ejection cylinder of the press. In the initial ejection stage, the ejector base plate pushes the ejector plate into the mold cavity. The ejector base plate first pushes the first ejector pin upward, initially lifting the non-sparkling area of ​​the trim panel. The second ejector assembly is then subjected to the reaction force of the trim panel, which compresses the damping mechanism, causing the damping mechanism to move with a delay. As the ejection stroke increases, the second ejector assembly begins to move upward, performing a secondary ejection of the sparkling area of ​​the trim panel, ultimately completely ejecting the trim panel from the lower mold groove. This damping mechanism uses a compressible spring. This invention first applies a demolding force to the non-glitter area of ​​the trim panel using a first ejector pin, creating a certain gap between the trim panel and the inner wall of the lower mold groove, thus reducing the overall demolding resistance. A damping mechanism is then used to reduce the demolding force applied to the glitter area of ​​the trim panel by the second ejector pin assembly. When a gap is created between the trim panel and the inner wall of the lower mold groove, the damping mechanism returns to its original state, and the second ejector pin assembly separates the glitter area from the inner wall of the lower mold groove. This segmented ejection method, by controlling the action sequence and ejection force of different ejector pins, can effectively protect the glitter on the surface of the trim panel from damage and avoid the separation of the glitter from the trim panel substrate due to excessive instantaneous ejection force.

[0009] Furthermore, in the aforementioned automatic pressing device for automotive tailgate trim pieces, the second ejector assembly includes an inner ejector pin located within the lower mold groove, an outer ejector pin located around the lower mold groove, and a middle plate. The outer ejector pin is positioned higher than the inner ejector pin. The inner and outer ejector pins are connected by the middle plate, which maintains a distance from the ejector plate. Before mold closing, the inner ejector pin forms a positioning groove below the bottom surface of the lower mold groove, and the trim piece is placed within the positioning groove. During mold closing, the upper mold plate presses against the outer ejector pin, and the outer ejector pin drives the inner ejector pin downwards via the middle plate. This puts the damping mechanism in a pre-compression state. The inner ejector pin and the inverted conical hole provided in the lower mold plate fit together to form a seal. The sealing structure formed by the inverted conical part and the lower mold plate prevents molten material from seeping into the gap between the ejector pin and the mold plate during pressing, avoiding flash or overflow, and ensuring the surface finish of the product.

[0010] Furthermore, in the aforementioned automatic pressing device for automotive tailgate trim pieces, the second ejector assembly includes an inverted cone portion and a rod portion, with the inverted cone portion connected to an inverted cone hole in the lower mold plate. During mold closing, the inverted cone portion and the inverted cone hole in the lower mold plate fit together to form a seal. The top cross-section of the inverted cone portion is circular or square, and the bottom end of the inverted cone portion is circular, with the top portion being smaller than the bottom portion. This allows the inverted cone portion and the inverted cone hole to be quickly and accurately positioned and tightly fitted during mold closing, further improving the sealing effect.

[0011] Furthermore, in the aforementioned automatic pressing device for automotive tailgate trim panel glitter, an upper mold core is connected to the bottom surface of the upper template, and an upper mold groove is provided on the bottom surface of the upper mold core. A lower mold core is connected to the top surface of the lower template, and a lower mold groove is provided on the top surface of the lower mold core. During mold closing, the upper mold core and the lower template abut against each other, and the upper and lower mold grooves form a mold cavity. By providing detachable upper and lower mold cores, it is convenient to replace the corresponding mold cores according to the shape and size of trim panels for different vehicle models, thereby improving the versatility and flexibility of the device and reducing mold replacement costs.

[0012] Furthermore, in the aforementioned automatic pressing device for automotive tailgate trim panels, a cutting block is connected to the lower mold plate. The cutting block has a blade at its top and is connected to both sides of the lower mold core. The upper mold core has cutting grooves on both sides. During mold closing, the cutting block extends into the cutting grooves to remove residual trim panel material. This design achieves integrated product pressing and burr removal, eliminating the need for subsequent manual trimming. This not only improves production efficiency but also ensures neat and consistent cuts, enhancing product dimensional accuracy.

[0013] Furthermore, in the aforementioned automatic pressing device for automotive tailgate trim pieces, the outer periphery of the cutter block and the lower die core is designed with inclined surfaces sloping downwards towards the lower die core. The lower die core and cutter block are correspondingly configured, with the cutter block pressing and fixing the lower die core. This pressing and fixing of the lower die core by the cutter block converts the installation force of the cutter block into a radial clamping force on the lower die core, enhancing the stability and firmness of the lower die core installation and preventing displacement of the die core during the pressing process, which could affect product quality.

[0014] Furthermore, in the aforementioned automatic pressing device for automotive tailgate trim pieces, a cooling channel is laterally formed in the lower mold plate. This cooling channel connects to a conical hole and a cooling system. Coolant exchanges heat with the conical portion of the second ejector assembly through the conical hole, thereby cooling the trim piece within the mold cavity and accelerating its forming speed. After the holding pressure stage, coolant is introduced into the cooling channel through the cooling system. The coolant exchanges heat with the conical portion of the second ejector assembly through the conical hole, rapidly dissipating heat from the product within the mold cavity and quickly lowering the product temperature to the setting temperature. This effectively shortens the forming cycle and increases the production quantity per unit time.

[0015] Furthermore, in the aforementioned automatic pressing device for automotive tailgate trim pieces, the lower mold plate is equipped with guide posts, and the upper mold plate is equipped with guide holes that mate with the guide posts. The guide posts extend into the guide holes, guiding the mold closing process. The cooperation between the guide posts on the lower mold plate and the guide holes on the upper mold plate ensures precise guidance during the mold closing process, further improving the overall operational stability of the device and the product qualification rate.

[0016] Furthermore, in the aforementioned automatic pressing device for automotive tailgate trim pieces, an upper mold base is connected to the top of the upper template, and a lower mold base is connected to the bottom of the lower template. The upper and lower mold bases are used to connect to the press and transmit the pressure of the press to the upper and lower templates.

[0017] As can be seen from the above technical solution, the present invention has the following beneficial effects: The automatic pressing device for automotive tailgate trim panel glitter of the present invention reduces the demolding force applied to the glitter area by the second ejector assembly, so that the trim panel is ejected in sections. By controlling the action sequence and ejection force of different ejector pins, the glitter on the surface of the trim panel can be effectively protected from damage, and the separation of the glitter from the trim panel substrate due to excessive instantaneous ejection force can be avoided. Attached Figure Description

[0018] Figure 1 This is a cross-sectional view of the automatic pressing device for automotive tailgate trim pieces according to the present invention; Figure 2 As shown Figure 1 A magnified view of a portion of the image; Figure 3 As shown Figure 1 A magnified view of a portion of the image; Figure 4 This is a schematic diagram of the structure of the second ejector pin; Figure 5 As shown Figure 1 A magnified view of a portion of the image; Figure 6 As shown Figure 1 A magnified view of a portion of the image.

[0019] In the diagram: 1. Upper mold plate, 11. Upper mold core, 12. Upper mold groove, 13. Cutting groove, 2. Lower mold plate, 21. Lower mold core, 22. Cutting block, 211. Lower mold groove, 23. Inverted conical hole, 233. Damping mechanism, 24. Cooling channel, 3. Two-stage ejection mechanism, 31. Ejector plate, 32. Ejector base plate, 321. Slide groove, 322. Block, 33. First ejector pin, 34. Second ejector pin assembly, 341. Inner ejector pin, 342. Inverted conical part, 343. Rod part, 35. Middle plate, 4. Guide pillar, 5. Guide hole, 6. Upper mold base, 7. Lower mold base, 100. Mold cavity. Detailed Implementation

[0020] Example 1 like Figure 1 The illustrated automatic pressing device for automotive tailgate trim panels includes an upper mold plate 1 and a lower mold plate 2, with a mold cavity 100 between them. The trim panel is pressed and formed within the mold cavity 100. A lower mold groove 211 is provided on the side of the lower mold plate 2 closest to the upper mold plate 1, and a two-stage ejection mechanism 3 is provided on the side of the lower mold groove 211 furthest from the upper mold plate 1. Ejector pins in the two-stage ejection mechanism 3 pass through the lower mold plate 2 and extend into the lower mold groove 211. The two-stage ejection mechanism 3 ejects the trim panel in segments. Both the upper mold plate 1 and the lower mold plate 2 have built-in electric heating elements, requiring them to be heated to 120°C-150°C before hot pressing. Temperature sensors and temperature controllers are installed in both the lower mold plate 2 and the upper mold plate 1, forming a closed-loop control system with the electric heating elements for precise temperature control.

[0021] In this embodiment, the lower mold plate 2 is provided with guide posts 4, and the upper mold plate 1 is provided with guide holes 5 that cooperate with the guide posts 4. The guide posts 4 extend into the guide holes 5 and play a guiding role in the mold closing process. The cooperation between the guide posts 4 on the lower mold plate and the guide holes 5 on the upper mold plate ensures accurate guidance during the mold closing process.

[0022] In this embodiment, the upper mold plate 1 is connected to the top of the upper mold plate 6, and the lower mold plate 2 is connected to the bottom of the lower mold plate 7. The upper mold plate 6 and the lower mold plate 7 are used to connect to the press and transmit the pressure of the press to the upper mold plate 1 and the lower mold plate 2.

[0023] like Figure 2-3 The automatic pressing device for the tailgate trim panel glitter shown includes a two-stage ejection mechanism 3 comprising an ejector plate 31, an ejector base plate 32, a first ejector pin 33, and a second ejector pin assembly 34. The first ejector pin 33 is connected to a countersunk hole in the ejector plate 31, and its bottom end abuts against the ejector base plate 32. The ejector base plate 32 has a groove 321 with its opening at the bottom. The bottom of the second ejector pin assembly 34 is slidably connected to the groove 321, and a plug 322 is threadedly connected to the opening of the groove 321. The plug 322 confines the second ejector pin assembly 34 within the groove 321, and a damping mechanism is provided between the lower ends of the plug 322 and the second ejector pin assembly 34. The second ejector assembly 34 passes through the through hole provided in the ejector plate 31. The lower end of the second ejector assembly 34 is connected to the slide groove 321 provided in the ejector base plate 32. The second ejector assembly 34 extends into the mold cavity 100 through the ejector plate 31. The bottom of the ejector base plate 32 is connected to the ejection cylinder of the press.

[0024] In this embodiment, the second ejector assembly 34 includes an inner ejector pin 341 disposed within the lower mold groove 211, an outer ejector pin disposed around the lower mold groove 211, and a middle plate 35. The outer ejector pin is positioned higher than the inner ejector pin 341. The inner ejector pin 341 and the outer ejector pin are connected by the middle plate 35, which maintains a distance from the ejector plate 31. Before mold closing, the inner ejector pin 341 forms a positioning groove below the bottom surface of the lower mold groove 211, and the sequins are placed in the positioning groove. During mold closing, the upper mold plate 1 presses against the outer ejector pin, and the outer ejector pin drives the inner ejector pin downward through the middle plate 35, compressing the damping mechanism into a pre-compression state. The inner ejector pin 341 and the inverted conical hole 23 provided in the lower mold plate 2 fit together to form a seal. The damping mechanism uses a compressible spring.

[0025] like Figure 4 The automatic pressing device for automotive tailgate trim pieces shown includes a second ejector assembly 34 comprising an inverted cone portion 342 and a rod portion 343. The inverted cone portion 342 is connected to an inverted cone hole 23 in the lower mold plate 2. During mold closing, the inverted cone portion 342 and the inverted cone hole 23 in the lower mold plate 2 fit together to form a seal. The top cross-section of the inverted cone portion 342 is circular or square, and the bottom end is circular, with the top portion of the inverted cone portion 342 being smaller than the bottom portion. This allows the inverted cone portion 342 and the inverted cone hole 23 to be quickly and accurately positioned and tightly fitted during mold closing, further improving the sealing effect. A guide post 4 passes through the middle plate 35, guiding the movement of the middle plate 35. A damping mechanism maintains a distance between the middle plate 35 and the ejector plate 31. The sealing structure formed by the inverted cone portion 342 and the lower mold plate 2 prevents molten material from seeping into the gap between the ejector and the mold plate during pressing, avoiding flash or overflow, and ensuring the surface finish of the product.

[0026] like Figure 5 The automatic pressing device for automotive tailgate trim panels shown has an upper mold core 11 connected to the bottom surface of the upper template 1, with an upper mold groove 12 on the bottom surface of the upper mold core 11. A lower mold core 21 is connected to the top surface of the lower template 2, with a lower mold groove 211 on the top surface of the lower mold core 21. During mold closing, the upper mold core 11 and the lower template 2 abut against each other, and the upper mold groove 12 and the lower mold groove 211 form a mold cavity 100. By providing detachable upper mold core 11 and lower mold core 21, it is easy to replace the corresponding mold core according to the shape and size of the trim panels for different vehicle models, improving the versatility and flexibility of the device and reducing mold replacement costs.

[0027] In this embodiment, the lower mold plate 2 is connected to a cutting block 22, the top of which is provided with a cutting edge. The cutting block 22 is connected to both sides of the lower mold core 21. The upper mold core 11 is provided with a cutting groove 13, which is located on both sides of the upper mold groove 12. When the mold is closed, the cutting block 22 extends into the cutting groove 13 to remove the trim panel residue. This design realizes the integrated operation of product pressing and burr removal, eliminating the need for subsequent manual trimming. This not only improves production efficiency but also ensures neat and consistent cuts, improving product dimensional accuracy.

[0028] In this embodiment, the outer periphery of the cutter block 22 and the lower mold core 21 is provided as an inclined surface sloping towards the lower mold core 21. The lower mold core 21 and the cutter block 22 are correspondingly arranged, and the cutter block 22 presses and fixes the lower mold core 21. The pressing and fixing of the lower mold core 21 by the cutter block 22 can convert the installation force of the cutter block 22 into a radial clamping force on the lower mold core 21, which enhances the stability and firmness of the installation of the lower mold core 21 and prevents the mold core from shifting during the pressing process, thus affecting the product quality.

[0029] In this embodiment, the lower mold plate 2 has a horizontally opened cooling channel 24, which is connected to the inverted conical hole 23 and the cooling system. The coolant exchanges heat with the inverted conical portion 342 of the second ejector assembly 34 through the inverted conical hole 23, thereby cooling the decorative panel in the mold cavity 100 and accelerating the molding speed of the decorative panel. After the holding pressure stage, coolant is introduced into the cooling channel 24 through the cooling system. The coolant exchanges heat with the inverted conical portion 342 of the second ejector assembly 34 through the inverted conical hole 23, quickly dissipating the heat of the product in the mold cavity 100 and rapidly reducing the product temperature to the setting temperature, effectively shortening the molding cycle and increasing the production quantity per unit time.

[0030] The working steps of this invention include: Before mold closing; the inner ejector pin 341 at the lower mold groove 211 sinks down to form a positioning groove, a sequin is placed in the positioning groove, and a laying sheet is placed in the lower mold groove 211.

[0031] The mold closes; the upper mold core 11 and the lower mold plate 2 abut against each other, and the upper mold groove 12 and the lower mold groove 211 form the mold cavity 100. The upper mold plate 1 presses against the outer ejector pin, and the outer ejector pin drives the inner ejector pin to move downward through the middle plate 35, so that the damping mechanism is compressed to a pre-compression state. The inner ejector pin 341 moves downward and fits against the inverted conical hole 23 provided in the lower mold plate 2 to form a seal. In order to ensure the sealing effect, a sealing sleeve is provided in the middle section of the inner ejector pin 341.

[0032] Holding pressure: Under the action of heat and pressure, the sheet material begins to soften and flow, filling the entire mold cavity, and then is held under pressure to solidify. The cooling system introduces coolant into the cooling channel 24. The coolant exchanges heat with the inverted cone portion 342 of the second ejector pin assembly 34 through the inverted cone hole 23, quickly dissipating the heat of the product in the mold cavity 100, so that the temperature of the decorative panel is rapidly reduced to the setting temperature to form the final product shape.

[0033] Mold opening; the upper mold plate 1 and lower mold plate 2 separate, the ejector cylinder drives the ejector pin base plate 32 to move to the upper mold plate 1, the ejector pin base plate 32 pushes the ejector pin plate 31 to move towards the mold cavity 100, the ejector pin base plate 32 first pushes the first ejector pin 33 to move upward, initially lifting the non-sparkling area of ​​the decorative panel, the second ejector pin assembly 34 is squeezed by the reaction force of the decorative panel to the damping mechanism, the damping mechanism lags the movement. As the ejection stroke increases, a gap is generated between the decorative panel and the inner wall of the lower mold groove 211, the second ejector pin assembly 34 overcomes the resistance of the decorative panel and begins to move upward, performing a second ejection of the sparkling area of ​​the decorative panel, and finally completely ejecting the decorative panel from the lower mold groove 211.

[0034] The above embodiments are exemplary and are intended to illustrate the technical concept and features of the present invention, so that those skilled in the art can understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An automatic pressing device for automotive tailgate trim panel sequins, characterized in that: It includes an upper template (1) and a lower template (2), and a mold cavity (100) is provided between the upper template (1) and the lower template (2). The decorative panel is pressed and formed in the mold cavity (100). The lower template (2) is provided with a lower mold groove (211) on the side close to the upper template (1). The lower mold groove (211) is provided with a two-stage ejection mechanism (3) on the side away from the upper template (1). The ejector pins of the two-stage ejection mechanism (3) pass through the lower template (2) and extend into the lower mold groove (211). The two-stage ejection mechanism (3) ejects the decorative panel in sections.

2. The automatic pressing device for automotive tailgate trim panel sequins according to claim 1, characterized in that: The two-stage ejection mechanism (3) includes an ejector plate (31), an ejector base plate (32), a first ejector pin (33), and a second ejector assembly (34). The first ejector pin (33) is connected to a countersunk hole in the ejector plate (31), and the bottom end of the first ejector pin (33) abuts against the ejector base plate (32). The ejector base plate (32) is provided with a groove (321), the groove (321) opening at the bottom of the ejector base plate (32), and the bottom of the second ejector assembly (34) is slidably connected to the groove (321). 1) An open threaded connection is provided with a plug (322), which limits the second ejector assembly (34) to be located in the slide groove (321). A damping mechanism is provided between the plug (322) and the lower end of the second ejector assembly (34). The second ejector assembly (34) passes through the through hole provided in the ejector plate (31). The lower end of the second ejector assembly (34) is connected to the slide groove (321) provided in the ejector base plate (32). The second ejector assembly (34) extends into the mold cavity (100) through the ejector plate (31).

3. The automatic pressing device for automotive tailgate trim panel sequins according to claim 2, characterized in that: The second ejector assembly (34) includes an inner ejector (341) disposed in the lower mold groove (211), an outer ejector and a middle plate (35) disposed around the lower mold groove (211). The inner ejector (341) is slidably connected to the lower template (2) which has an inverted conical hole (23). The outer ejector is set higher than the inner ejector (341). The inner ejector (341) and the outer ejector are connected by the middle plate (35). The middle plate (35) and the ejector plate (31) are set at a distance. Before the mold is closed, the inner ejector (341) is lower than the bottom surface of the lower mold groove (311) to form a positioning groove. When the mold is closed, the upper template (1) squeezes the outer ejector. The outer ejector drives the inner ejector to move downward through the middle plate (35). The inner ejector (341) and the inverted conical hole (23) fit together to form a seal.

4. The automatic pressing device for automotive tailgate trim panel sequins according to claim 3, characterized in that: The second ejector pin assembly (34) includes an inverted cone portion (342) and a rod portion (343). The inverted cone portion (342) is connected to the inverted cone hole (23) provided in the lower template (2). The top cross-section of the inverted cone portion (342) is set to be circular or square, and the bottom end of the (342) is set to be circular. The inverted cone portion (342) is smaller in shape from the top end than from the bottom end.

5. The automatic pressing device for automotive tailgate trim panel sequins according to claim 1, characterized in that: The bottom surface of the upper template (1) is connected to the upper mold core (11), and the bottom surface of the upper mold core (11) is provided with an upper mold groove (12). The top surface of the lower template (2) is connected to the lower mold core (21), and the top surface of the lower mold core (21) is provided with a lower mold groove (211). When the mold is closed, the upper mold core (11) and the lower template (2) abut against each other, and the upper mold groove (12) and the lower mold groove (211) form a mold cavity (100).

6. The automatic pressing device for automotive tailgate trim panel sequins according to claim 5, characterized in that: The lower mold plate (2) is connected to a cutting block (22), the top of the cutting block (22) is provided with a blade, and the cutting block (22) is connected to both sides of the lower mold core (21); the upper mold core (11) is provided with a cutting groove (13), and the cutting groove (13) is provided on both sides of the upper mold groove (12); when the mold is closed, the cutting block (22) extends into the cutting groove (13) to cut off the trim panel residue.

7. The automatic pressing device for automotive tailgate trim panel sequins according to claim 6, characterized in that: The outer periphery of the cutter block (22) and the lower mold core (21) is provided with inclined surfaces that are inclined towards the lower mold core (21). The lower mold core (21) and the cutter block (22) are respectively provided, and the cutter block (22) presses and fixes the lower mold core (21).

8. The automatic pressing device for automotive tailgate trim panel sequins according to claim 3, characterized in that: The lower template (2) has a horizontally opened cooling channel (24), which is connected to the inverted conical hole (23) and the cooling system. The coolant exchanges heat with the inverted conical part (341) of the second ejector assembly (34) through the inverted conical hole (23), thereby cooling the decorative panel in the mold cavity (100) and accelerating the molding speed of the decorative panel.

9. The automatic pressing device for automotive tailgate trim panel sequins according to claim 1, characterized in that: The lower template (2) is provided with guide posts (4), and the upper template (1) is provided with guide holes (5) that cooperate with the guide posts (4). The guide posts (4) extend into the guide holes (5) and play a guiding role in the mold closing process.

10. The automatic pressing device for automotive tailgate trim panel sequins according to claim 1, characterized in that: The upper template (1) is connected to the top of the upper mold base (6), and the lower template (2) is connected to the bottom of the lower mold base (7). The upper mold base (6) and the lower mold base (7) are used to connect to the press and transmit the pressure of the press to the upper template (1) and the lower template (2).

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