Hot press forming die for automotive upholstery

Abstract

The invention relates to the technical field of vehicle part hot-press machining, in particular to an automobile interior trim part hot-press forming die which comprises a fixed die and a movable die and is characterized in that bearing plates are arranged on the front side and the rear side of the fixed die in an up-down sliding mode, and suction mechanisms used for conducting active exhaust on a multi-layer composite material are arranged on the bearing plates through connecting assemblies; according to the invention, a suction pipe is adopted to extend between two adjacent layers of composite materials, and the suction pipe is driven by a driving assembly to perform reciprocating swing and move in a direction away from a fixed mold while closing the mold, so that air between the two layers of composite materials is actively sucked; and meanwhile, the pressing block synchronously moving along with the suction pipe is used for pressing and supporting the composite material on the uppermost layer, on one hand, bubbles can be pushed and driven, the exhaust effect is improved, on the other hand, the composite material can be pre-pressed, wrinkles can be removed through supporting, and the hot pressing effect is improved.

Description

Technical Field

[0001] This invention relates to the field of hot pressing technology for vehicle parts, specifically a hot pressing mold for automotive interior parts. Background Technology

[0002] The car roof is one of the important large interior parts of a car. It is usually manufactured using a hot pressing process. This process involves stacking two or more layers of composite materials in a hot pressing mold. Through the closing action of the fixed mold and the moving mold, pressure and heat are applied to the composite materials using the mold cavity, so that they are bonded together as a whole during the hot pressing process, thereby forming a car roof component with a preset shape and structure.

[0003] When hot-pressing automotive roofs, effectively expelling air between adjacent materials is essential for obtaining high-quality, high-performance roof products. In addition, keeping the mating surfaces of adjacent materials clean is also conducive to the tight bonding of roof composite materials. Currently, mechanical extrusion during the closing of the fixed and moving molds is mainly used to expel air between the multi-layer composite materials. Without interference from air and impurity particles, the closing pressure can be evenly transmitted to every part of the material, making the material layers tightly bonded.

[0004] However, existing hot pressing molds have significant shortcomings in terms of venting. When hot pressing large interior parts such as car roofs, due to the large number of composite material layers and large area, the gas is often not completely discharged during the hot pressing process and is sealed in the cavity. In addition, the large area of ​​the material is prone to adhering impurity particles, which leads to residual air bubbles between the composite material layers. It is difficult to achieve complete bonding and defects such as bulges and wrinkles are prone to occur, which seriously affect the appearance quality and performance of the product. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a hot pressing mold for automotive interior parts, comprising a fixed mold and a moving mold, characterized in that a support plate is slidably provided on both the front and rear sides of the fixed mold, and a suction mechanism for actively venting multi-layer composite material and a stroking mechanism for pressing and pre-fitting the composite material are provided on the support plate through a connecting component.

[0006] The suction mechanism includes several suction tubes evenly spaced on the connecting component in the left-right direction. The suction tubes are detachably connected to the connecting component to accommodate the hot pressing of multi-layer composite materials. The end of the suction tube away from the fixed mold is connected to the air pump through a hose, and the end of the suction tube near the fixed mold has a flat opening structure.

[0007] The stroking mechanism includes several cantilever plates evenly spaced on the connecting assembly in the left-right direction. A pressing block is slidably disposed on the lower side of the cantilever plate near the fixed mold. A push spring is disposed between the pressing block and the cantilever plate. The mold also includes a driving assembly for driving the suction tube and the cantilever plates to move and swing.

[0008] During hot pressing, the drive assembly moves the suction tube and the cantilever plate away from the fixed mold and swings back and forth, so that the flat end structure of the suction tube sweeps and actively exhausts air inside the composite material. At the same time, it pushes the spring to push the pressing block to press on the top layer of composite material and performs sweeping smoothing.

[0009] Preferably, the connecting assembly includes a support frame that is slidably mounted on the upper side of the support plate, a hydraulic cylinder three with a telescopic section fixedly connected to the support frame is fixedly installed on the support plate, a connecting frame is hinged at equal intervals along the left and right directions on the support frame, and a number of suction pipes arranged at equal intervals vertically are detachably connected to the connecting frame.

[0010] Preferably, the pressing block has a right-angled trapezoidal structure, and a vibrating block is slidably arranged inside the pressing block. The upper part of the vibrating block has a rod-shaped structure, and the rod-shaped structure of the vibrating block is slidably connected to the cantilever plate. A return spring is arranged between the rod-shaped structure of the vibrating block and the cantilever plate.

[0011] Preferably, a linkage rod is fixedly installed at the upper end of the rod-shaped structure of the vibration block, and a drive plate is slidably arranged on the upper side of the cantilever plate along the front-back direction. Several triangular plates arranged at equal intervals in the front-back direction for pushing the linkage rod upward are fixedly installed on the upper side of the drive plate near the end of the linkage rod.

[0012] Preferably, a number of arc-shaped plates are fixedly installed at equal intervals along the left and right directions on the upper side of the support frame. The arc-shaped plates are provided with wavy guide grooves. A protruding rod that is slidably connected inside the wavy guide groove is fixedly installed on the lower side of the drive plate away from the fixed mold.

[0013] Preferably, the driving component includes a movable frame that is slidably disposed on the support frame and away from the fixed mold. The movable frame has waist-shaped grooves evenly spaced along the left and right directions. The end of the connecting frame away from the fixed mold is engaged with the corresponding waist-shaped groove. A hydraulic cylinder is fixedly installed on the right end of the support frame, and the telescopic section of the hydraulic cylinder is fixedly connected to the movable frame.

[0014] Preferably, several bristle blocks are fixedly installed on both the upper and lower sides of the flat opening structure of the suction tube, and the bristle blocks are arranged at equal intervals along the left and right direction on the suction tube.

[0015] Preferably, the suction tube has two symmetrically arranged adsorption rollers mounted on its flat end structure. The adsorption rollers are hollow and have several air holes on their outer surfaces. The ends of the adsorption rollers are connected to the suction tube via rotatably connected pipes.

[0016] Preferably, a flared tube is fixedly installed inside the suction tube, and the flared tube is connected to the ends of the two pipes.

[0017] Preferably, counterweights are slidably provided on both the left and right sides of the moving mold, and a hydraulic cylinder is provided between the lower side of the bearing plate and the fixed mold.

[0018] The beneficial effects of this invention are as follows: First, this invention uses a suction tube that extends between two adjacent layers of composite material. The suction tube is driven by a drive component to reciprocate and move away from the fixed mold while the mold is closed, thereby actively suctioning the air between the two layers of composite material. At the same time, the pressing block that moves synchronously with the suction tube presses down and moves the uppermost layer of composite material. On the one hand, it can push away the air bubbles and improve the venting effect. On the other hand, it can pre-press the composite material and remove wrinkles by moving it, thereby improving the hot pressing effect.

[0019] Second, the present invention uses a brush block on a suction tube to remove impurity particles from the composite material, and at the same time uses an adsorption roller to adsorb the composite material. The rotation of the adsorption roller drives the multi-layer composite material to be pre-pressed together, thereby ensuring the hot pressing effect.

[0020] Third, the present invention uses a pressing block that swings to drive the vibrating block to move synchronously, and guides the drive plate through a wave-shaped guide groove, thereby controlling the up-and-down reciprocating movement of the vibrating block, so that the vibrating block vibrates the uppermost composite material, further improving the pre-compression effect of the multi-layer composite material.

[0021] Fourth, in this invention, when the moving mold descends and closes, the moving mold drives the counterweight block to press against the left and right sides of the composite material before the moving mold, so that the counterweight block seals the left and right sides of the composite material, thereby increasing the suction effect of the suction tube on the composite material. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 This is a structural schematic diagram of the fixed mold, bearing plate, support frame and arc plate in this invention.

[0025] Figure 3 This is a schematic diagram of the structure of the support plate, connecting frame, suction tube and pressing block in this invention.

[0026] Figure 4 This is a schematic diagram of the structure of the fixed mold, hydraulic cylinder 2, and bearing plate in this invention.

[0027] Figure 5 This is a partial sectional view of the bearing plate, suction pipe, cantilever plate and support frame in this invention.

[0028] Figure 6 This is a schematic diagram of the structure of the cantilever plate, connecting frame, suction pipe and linkage rod in this invention.

[0029] Figure 7 This is a schematic diagram of the structure of the connecting frame, suction tube, brush block and adsorption roller in this invention.

[0030] Figure 8 This is a partial cross-sectional view of the brush block, adsorption roller, pipe and flared pipe in this invention.

[0031] Figure 9 This is a partial cross-sectional view of the cantilever plate, pressing block, linkage rod, and drive plate in this invention.

[0032] Figure 10 This is a partial structural diagram of the arc-shaped plate, the protruding rod, and the drive plate in this invention.

[0033] In the diagram: 1. Fixed mold; 2. Moving mold; 3. Bearing plate; 4. Connecting assembly; 5. Suction mechanism; 6. Stroking mechanism; 21. Counterweight; 31. Hydraulic cylinder II; 41. Support frame; 42. Connecting frame; 51. Suction pipe; 61. Cantilever plate; 62. Pressing block; 63. Drive assembly; 411. Hydraulic cylinder III; 511. Brush block; 512. Adsorption roller; 513. Pipe; 514. Flared pipe; 621. Vibrating block; 622. Linkage rod; 623. Drive plate; 624. Triangular plate; 625. Arc plate; 626. Protruding rod; 631. Moving frame; 632. Hydraulic cylinder I. Detailed Implementation

[0034] The embodiments of the present invention are described in detail below. The embodiments described below are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. Where specific techniques or conditions are not specified in the embodiments, they shall be performed in accordance with the techniques or conditions described in the literature in the art or in accordance with the product manual.

[0035] See Figure 1 and Figure 2 A hot pressing mold for automotive interior parts includes a fixed mold 1 and a moving mold 2. The fixed mold 1 has a support plate 3 that slides up and down on both the front and rear sides. The support plate 3 is provided with a suction mechanism 5 for actively venting multi-layer composite material and a stroking mechanism 6 for pressing and pre-fitting the composite material through a connecting component 4.

[0036] See Figure 1 , Figure 3 and Figure 5The suction mechanism 5 includes a plurality of suction tubes 51 evenly spaced along the left and right directions on the connecting component 4. The suction tubes 51 are detachably connected to the connecting component 4 to accommodate the hot pressing of multi-layer composite materials. The end of the suction tube 51 away from the fixed mold 1 is connected to the air pump through a hose, and the end of the suction tube 51 near the fixed mold 1 has a flat opening structure.

[0037] See Figure 1 , Figure 2 and Figure 3 The stroking mechanism 6 includes several cantilever plates 61 that are equally spaced on the connecting assembly 4 in the left-right direction. A pressing block 62 is slidably arranged on the lower side of the cantilever plate 61 near the fixed mold 1. A push spring is arranged between the pressing block 62 and the cantilever plate 61. The mold also includes a driving assembly 63 for driving the suction tube 51 and the cantilever plate 61 to move and swing.

[0038] See Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 7 The connecting component 4 includes a support frame 41 that is slidably mounted on the upper side of the support plate 3. A hydraulic cylinder 3 411 with a telescopic section fixedly connected to the support frame 41 is fixedly installed on the support plate 3. A connecting frame 42 is hinged at equal intervals along the left and right directions on the support frame 41. Several suction pipes 51 arranged at equal intervals are detachably connected to the connecting frame 42. The suction pipes 51 and the connecting frame 42 are detachably connected by using the plug-in and threaded locking method in the prior art. Specifically, the end of the suction pipe 51 is plugged into the connecting frame 42 and the locking nut is threaded onto the outside of the end of the suction pipe 51. At the same time, the locking nut is pressed against the connecting frame 42, thereby realizing the connection between the suction pipe 51 and the connecting frame 42.

[0039] It should be noted that the number of suction tubes 51 with equal spacing between the upper and lower parts is determined according to the number of layers required for hot pressing of the corresponding size of the automotive interior parts, to ensure that there is a suction tube 51 between any two adjacent layers of composite material in the upper and lower directions. For example, if the number of layers of composite material is two, only one suction tube 51 is needed. The embodiment of the present invention is illustrated in the state where only one suction tube 51 is needed when the number of layers of composite material is two.

[0040] See Figure 2 , Figure 3 and Figure 5The drive assembly 63 includes a movable frame 631 that is slidably disposed on the support frame 41 and away from the fixed mold 1. The movable frame 631 has waist-shaped grooves evenly spaced along the left and right directions. The end of the connecting frame 42 away from the fixed mold 1 is engaged with the corresponding waist-shaped groove. A hydraulic cylinder 632 is fixedly installed on the right end of the support frame 41. The telescopic section of the hydraulic cylinder 632 is fixedly connected to the movable frame 631.

[0041] See Figure 1 and Figure 4 The moving mold 2 has counterweights 21 that slide up and down on both sides, and a hydraulic cylinder 31 is provided between the lower side of the bearing plate 3 and the fixed mold 1.

[0042] When it is necessary to hot press the multi-layer composite material to prepare automotive interior parts, firstly, the extension section of the hydraulic cylinder 31 is extended according to the total thickness of the material, so that the hydraulic cylinder 31 drives the bearing plate 3 to move upward. The bearing plate 3 drives the connecting frame 42 to move upward to a suitable height through the support frame 41. Then, according to the number of material layers, the corresponding number of suction pipes 51 are selected and connected to the connecting frame 42 to prevent the bottom suction pipe 51 from interfering with the fixed mold 1.

[0043] It should be noted that the thickness of the multilayer composite material required for automotive interior parts of a certain size is consistent, and automotive interior parts of the same size are usually processed by hot pressing in batches over a long period of time. Therefore, it is only necessary to adjust and install the corresponding number of suction tubes 51 once before the hot pressing of automotive interior parts of this batch size. The required number of tubes to be installed is determined by those skilled in the art based on the technical parameters required for hot pressing.

[0044] Then the operator places the multi-layer composite material on the fixed mold 1, and at the same time, the operator positions the suction tube 51, which is located at the same level, between two adjacent layers of material, and positions the cantilever plate 61 and the pressing block 62 on the uppermost layer of material. The push spring, under its own elastic force, causes the lower side of the pressing block 62 to abut against the upper side of the uppermost layer of material.

[0045] When the mold is closed, the press drives the moving mold 2 to move downward. Under normal conditions, the counterweight 21 slides downward by its own gravity, so that the lower side of the counterweight 21 is located below the lower side of the moving mold 2. This allows the counterweight 21 to contact the composite material before the moving mold 2, and to press down on the left and right sides of the composite material by its own gravity, thus sealing the left and right sides of the composite material. This helps the suction pipe 51 to prevent air from outside the composite material from re-entering the interior of the composite material when it actively suctions the interior of the composite material, ensuring the suction and exhaust effect.

[0046] When the counterweight 21 presses against the composite material, the telescopic section of hydraulic cylinder 3 411 contracts and the telescopic section of hydraulic cylinder 1 632 reciprocates. Air is drawn from the suction pipe 51 by the air pump, creating a negative pressure inside the suction pipe 51. This allows the suction pipe 51 to actively draw air from between adjacent layers of material, achieving the function of active venting. Hydraulic cylinder 1 632 drives the moving frame 631 to slide back and forth. The moving frame 631, through the connecting frame 42, drives the flat-mouth structure of the suction pipe 51 to sweep between adjacent layers of material. At the same time, hydraulic cylinder 3 411, through the support frame 41, drives the suction pipe 51 in a direction away from the fixed mold 1, so that the suction pipe 51 gradually and comprehensively draws air from the composite material from the center to the front and back sides.

[0047] While the connecting frame 42 drives the suction tube 51 to move and swing, the connecting frame 42 drives the pressing block 62 to move and sweep synchronously through the cantilever plate 61, so that the pressing block 62 presses down and supports the uppermost composite material. On the one hand, it can push away the air bubbles and improve the exhaust effect; on the other hand, it can pre-press the composite material and smooth out the wrinkles through continuous sweeping, thereby improving the hot pressing effect.

[0048] To enhance the pre-compression effect of the pressing block 62 on the composite material, the present invention designs the following structure: (See attached diagram) Figure 5 , Figure 6 ,and Figure 9 The pressing block 62 has a right-angled trapezoidal structure. Inside the pressing block 62, a vibrating block 621 is slidably arranged. The upper part of the vibrating block 621 has a rod-shaped structure. The rod-shaped structure of the vibrating block 621 is slidably connected to the cantilever plate 61. A return spring is arranged between the rod-shaped structure of the vibrating block 621 and the cantilever plate 61.

[0049] See Figure 6 and Figure 9 The upper end of the rod-shaped structure of the vibrating block 621 is fixedly installed with a linkage rod 622 arranged perpendicularly thereto. The upper side of the cantilever plate 61 is slidably provided with a drive plate 623 along the front-back direction. Several triangular plates 624 arranged at equal intervals in the front-back direction for pushing the linkage rod 622 upward are fixedly installed on the upper side of the drive plate 623 near the end of the linkage rod 622.

[0050] See Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 10 Several arc-shaped plates 625 are fixedly installed at equal intervals along the left and right directions on the upper side of the support frame 41. The arc-shaped plates 625 are provided with wavy guide grooves. A protruding rod 626 that is slidably connected inside the wavy guide groove is fixedly installed on the lower side of the drive plate 623 away from the fixed mold 1.

[0051] When the pressing block 62 swings back and forth, the cantilever plate 61 drives the drive plate 623 to move synchronously, causing the drive plate 623 to drive the protruding rod 626 to move along the guide of the wavy guide groove. This causes the wavy guide groove to drive the triangular plate 624 to move back and forth along the length of the cantilever plate 61 through the reciprocating push and pull of the drive plate 623. This causes the triangular plate 624 to intermittently push the linkage rod 622 upward and push the linkage rod 622 downward through the elastic force of the return spring, realizing the reciprocating up and down movement of the linkage rod 622. The linkage rod 622 drives the vibrating block 621 to move up and down synchronously. The vibrating block 621 vibrates the uppermost composite material, further improving the pre-compression effect of the multi-layer composite material.

[0052] To remove impurity particles from composite materials, the present invention designs the following structure: (See attached diagram) Figure 7 and Figure 8 Several bristle blocks 511 are fixedly installed on both the upper and lower sides of the flat opening structure of the suction tube 51. The bristle blocks 511 are arranged at equal intervals along the left and right directions on the suction tube 51.

[0053] As the suction tube 51 swings and moves, it simultaneously drives the brush block 511 to sweep away impurity particles on the sides of two adjacent composite materials, and then removes the impurity particles through the suction tube 51.

[0054] To pre-press the multi-layered composite materials together and ensure the hot-pressing effect, the present invention designs the following structure: (See attached diagram) Figure 6 , Figure 7 and Figure 8 Two symmetrically arranged adsorption rollers 512 are rotatably mounted on the flat opening structure of the suction pipe 51. The adsorption rollers 512 have a hollow structure and several air holes are opened on the outer surface of the adsorption rollers 512. The ends of the adsorption rollers 512 are connected to the suction pipe 51 through a rotatably connected pipe 513.

[0055] While the suction pipe 51 is drawing in air, it also draws air from the adsorption roller 512 through the pipe 513, creating a negative pressure in the adsorption roller 512. This causes the adsorption roller 512 to adsorb the composite material onto its outer surface. As the adsorption roller 512 moves synchronously with the suction pipe 51, it rolls against the composite material, causing the adsorption roller 512 to continuously adhere the two adjacent layers of composite material together, thus ensuring the hot pressing effect.

[0056] To improve the suction effect of the suction tube 51, the present invention designs the following structure: (See attached diagram) Figure 8 The suction tube 51 has a flared tube 514 fixedly installed inside, and the flared tube 514 is connected to the ends of the two pipes 513.

[0057] The outer side of the flared tube 514 shortens the internal space of the suction tube 51, reducing the flow space in the middle of the flared tube 514, thereby creating a Venturi effect, which in turn increases the suction flow rate of the suction tube 51 and enhances the suction effect.

[0058] It should be noted that the support frame 41 can be slidably connected to the bearing plate 3 in a detachable manner, which facilitates the maintenance of the structure on the support frame 41. When hot pressing some small automotive headliner interior parts with good traditional mold venting effect, the suction mechanism 5 and the stroking mechanism 6 of the present invention need to work. It is only necessary to move the support frame 41 in advance before working so that the suction pipe 51 is always outside the fixed mold 1, thus enabling high flexibility and applicability according to the specific situation of the automotive headliner.

[0059] This invention pre-treats the composite material before hot pressing by using a synchronously moving and continuously sweeping suction pipe 51 and pressing block 62. The suction pipe 51 actively sucks out air and impurity particles between the composite material layers using negative pressure, while the pressing block 62 pre-presses and sweeps the composite material to smooth it. Although this method increases the structure and energy consumption compared to traditional hot pressing methods, it significantly improves the hot pressing quality of automotive headliner interior parts, effectively increases the yield rate, and indirectly reduces the cost increase caused by defective products. By controlling the yield rate, it not only offsets the cost increase caused by the increased structure and energy consumption but also greatly improves the quality of headliner products, thereby enhancing the product's competitiveness in the market and bringing more economic benefits.

[0060] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0061] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0062] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0063] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A thermoforming mold for automotive interior parts, comprising a fixed mold and a moving mold, characterized in that, The mold has a support plate that slides up and down on both the front and rear sides. The support plate is equipped with a suction mechanism for actively venting the multi-layer composite material and a stroking mechanism for pressing and pre-bonding the composite material through a connecting component. The suction mechanism includes several suction tubes that are equally spaced on the connecting component in the left-right direction. The suction tubes are detachably connected to the connecting component to adapt to the hot pressing of multi-layer composite materials. The end of the suction tube away from the fixed mold is connected to the air pump through a hose, and the end of the suction tube near the fixed mold has a flat opening structure. The stroking mechanism includes several cantilever plates that are equally spaced on the connecting component in the left-right direction. A pressing block is slidably arranged on the lower side of the cantilever plate near the fixed mold. A push spring is arranged between the pressing block and the cantilever plate. The mold also includes a driving component for driving the suction tube and the cantilever plate to move and swing. During hot pressing, the drive assembly moves the suction tube and the cantilever plate away from the fixed mold and swings back and forth, so that the flat end structure of the suction tube sweeps and actively exhausts air inside the composite material. At the same time, it pushes the spring to push the pressing block to press on the top layer of composite material and performs sweeping smoothing.

2. The hot pressing mold for automotive interior parts according to claim 1, characterized in that, The connecting assembly includes a support frame that is slidably mounted on the upper side of the support plate, a hydraulic cylinder three that is fixedly connected to the support frame and has a telescopic section fixedly installed on the support plate, a connecting frame that is hinged at equal intervals along the left and right directions on the support frame, and several suction pipes that are arranged at equal intervals up and down that are detachably connected to the connecting frame.

3. The hot pressing mold for automotive interior parts according to claim 2, characterized in that, The pressing block has a right-angled trapezoidal structure. Inside the pressing block, a vibrating block is slidably arranged vertically. The upper part of the vibrating block has a rod-shaped structure. The rod-shaped structure of the vibrating block is slidably connected to the cantilever plate. A return spring is arranged between the rod-shaped structure of the vibrating block and the cantilever plate.

4. The hot pressing mold for automotive interior parts according to claim 3, characterized in that, The upper end of the rod-shaped structure of the vibrating block is fixedly installed with a linkage rod arranged perpendicular to it. A drive plate is slidably arranged on the upper side of the cantilever plate along the front-back direction. Several triangular plates arranged at equal intervals in the front-back direction for pushing the linkage rod upward are fixedly installed on the upper side of the drive plate near the linkage rod.

5. The hot pressing mold for automotive interior parts according to claim 4, characterized in that, Several arc-shaped plates are fixedly installed at equal intervals along the left and right directions on the upper side of the support frame. The arc-shaped plates are provided with wavy guide grooves. A protruding rod that is slidably connected inside the wavy guide groove is fixedly installed on the lower side of the drive plate away from the fixed mold.

6. The hot pressing mold for automotive interior parts according to claim 2, characterized in that, The drive assembly includes a movable frame that is slidably disposed on the support frame and away from the fixed mold. The movable frame has waist-shaped grooves evenly spaced along the left and right directions. The end of the connecting frame away from the fixed mold is engaged with the corresponding waist-shaped groove. A hydraulic cylinder is fixedly installed on the right end of the support frame. The telescopic section of the hydraulic cylinder is fixedly connected to the movable frame.

7. The hot pressing mold for automotive interior parts according to claim 1, characterized in that, The suction tube has several bristle blocks fixedly installed on both the upper and lower sides of its flat opening structure, and the bristle blocks are arranged at equal intervals along the left and right direction on the suction tube.

8. The hot pressing mold for automotive interior parts according to claim 1, characterized in that, The suction tube has two symmetrically arranged suction rollers mounted on its flat-mouth structure. The suction rollers are hollow and have several air holes on their outer surfaces. The ends of the suction rollers are connected to the suction tube via rotating pipes.

9. A hot pressing mold for automotive interior parts according to claim 8, characterized in that, The suction tube has a flared tube fixedly installed inside, and the flared tube is connected to the ends of the two tubes.

10. A hot pressing mold for automotive interior parts according to claim 1, characterized in that, The moving mold has counterweights that slide up and down on both sides, and a hydraulic cylinder is installed between the lower side of the bearing plate and the fixed mold.

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