Spraying-free material and production device of automobile spraying-free ornament

Abstract

The invention belongs to the technical field of automobile interior decoration manufacturing, and discloses a spraying-free material and a production device of an automobile spraying-free decoration. The spraying-free material comprises 90-95% of matrix resin, 0.5-3.5% of effect toner, 0.1-3% of basic toner and 0-20% of filler. The effect toner is at least one of aluminum powder, glass beads, glass residues, pearl powder, straw powder and wood powder; the basic toner comprises at least one of an inorganic pigment and an organic pigment; the inorganic pigment is at least one of a metal oxide, a metal sulfide, a metal sulfate, a metal chromate, a metal molybdate and carbon black, the effect toner is matched with the base color regulation of the basic toner to realize a three-dimensional decorative effect, and meanwhile, due to the synergistic effect of the auxiliary master batch and the matrix resin, the three-dimensional decorative effect is realized. Appearance defects caused by metal powder agglomeration in traditional mixing are avoided; and the filler is selectively added, so that the impact resistance of the material can be improved through the rigidity of the glass beads, and the environmental protection property can be enhanced by virtue of the biocompatibility of the straw powder.

Description

Technical Field

[0001] This invention belongs to the field of automotive interior manufacturing technology, specifically a production device for paint-free materials and paint-free automotive trim. Background Technology

[0002] In the field of automotive trim design, to meet consumers' demand for diverse CTF (Cartoon to Fulfillment) solutions for automotive trim, designers have gradually adopted vibrant colors and styles in automotive trim. However, the usual methods to achieve these effects are spraying special effect paint or applying wraps. But spraying special effect paint is not only complicated and costly, but it can also have harmful effects on the health of operators; while applying wraps to parts is inefficient, inconsistent, and cannot be industrialized.

[0003] Patent application CN202111343159.X discloses a feeding device for paint-free plastic production, including a first placement shelf, a second placement shelf, and a third placement shelf, arranged sequentially from top to bottom. A storage tank is mounted on the first placement shelf, a mixing tank is mounted on the second placement shelf, and an injection molding machine is mounted on the third placement shelf. A first connecting pipe connects the lower opening of the storage tank to the upper opening of the mixing tank; a second connecting pipe connects the lower opening of the mixing tank to the inlet of the injection molding machine. This feeding process, from storage to mixing to injection molding, fully utilizes gravity. Operators only need to transport the initial plastic raw material to the first placement shelf and pour it into the corresponding storage tank, eliminating the need for repeated handling of the plastic raw material and achieving smooth feeding, thus significantly improving production efficiency.

[0004] During the material mixing process, metallic powders and other effect color powders are prone to agglomeration, leading to appearance defects in the jewelry. In addition, the uniformity of the mixed materials is insufficient, affecting the decorative effect and color consistency of the jewelry. Furthermore, high-viscosity molten materials are prone to solidification or adhesion to the pipe wall due to temperature fluctuations during transportation, and insufficient conveying power affects the molding efficiency of uncoated jewelry.

[0005] Therefore, in order to solve the above-mentioned technical problems, the present invention discloses a production apparatus for paint-free materials and paint-free automotive trim. Summary of the Invention

[0006] The purpose of this invention is to address the above-mentioned problems. This invention provides a production apparatus for paint-free materials and paint-free automotive trim, which has the advantages of thorough mixing and rapid clamping.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a paint-free material, comprising the following components by mass percentage: 90-95% matrix resin, 0.5-3.5% effect color powder, 0.1-3% base color powder, and 0-20% filler; The effect color powder is at least one of aluminum powder, glass beads, glass shavings, pearlescent powder, straw powder, and wood powder; The base pigment includes at least one of inorganic pigments and organic pigments; The inorganic pigment is at least one of metal oxides, metal sulfides, metal sulfates, metal chromates, metal molybdates, and carbon black. The organic pigment is at least one of azo pigments, phthalocyanine pigments, heterocyclic pigments, lake pigments, fluorescent pigments, dyes, and fluorescent whitening agents.

[0008] The present invention also includes a production apparatus for paint-free automotive trim, used for processing paint-free materials, including a molding component, one end of the molding component is connected to a transmission component, the end of the transmission component away from the molding component is connected to a mixing component, a rotating part is connected inside the mixing component, and a sealing component is connected to the side of the mixing component near the transmission component. The mixing assembly includes a mixing tank with a mixing cavity inside. The rotating part is located inside the mixing cavity, and the end of the mixing tank near the molding assembly is connected to the transfer assembly. The rotating part includes a rotating shaft, a spiral blade is connected to the outer circumference of the rotating shaft, a plurality of elastic parts are connected to the spiral blade, and a plurality of connecting plates are provided on the end of the elastic part away from the contact with the spiral blade.

[0009] Preferably, the molding assembly includes a molding box, a molding cavity is provided inside the molding box, a working part is connected inside the molding cavity, and a conveying assembly is movably provided inside the molding box.

[0010] Preferably, the transmission assembly includes a transmission pipe, a rotating ring is connected inside the transmission pipe, the rotating ring is connected to the cavity wall of the mixing chamber, and the inner ring of the rotating ring is provided with threads for conveying materials.

[0011] Preferably, the working part includes a movable plate with a through hole, the position of which corresponds spatially to the position of the transmission component. A telescopic rod is connected to the movable plate, and one end of the telescopic rod is connected to the cavity wall of the molding cavity.

[0012] Preferably, a mold plate is connected to the side of the movable plate away from the transmission component, and after the telescopic rod drives the movable plate to contact the mold plate, the movable plate can slide relative to the telescopic rod.

[0013] Preferably, the conveying assembly includes two connecting belts, each connected to a limiting groove, and the connecting belts are provided with a plurality of clamping parts for removing the mold from the working part.

[0014] Preferably, a heating component is internally connected to both the mixing component and the transmission component.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: The effect color powder is selected and combined with the base color powder to control the base color, so as to achieve a three-dimensional decorative effect. At the same time, the synergistic effect of the additive masterbatch and the matrix resin avoids the appearance defects caused by the agglomeration of metal powder in traditional mixing. The selective addition of fillers can not only improve the impact resistance of the material through the rigidity of glass beads, but also enhance the environmental protection properties by taking advantage of the biocompatibility of straw powder.

[0016] In the mixing assembly, the rotating shaft of the rotating part drives the spiral blades to rotate. The spiral blades transport the material from the bottom of the mixing chamber to the top, causing the material to fall freely and form a circulating flow. At the same time, the elastic part on the spiral blades deforms under the impact of the material, and the connecting plate at its end rebounds with the elastic part, generating a high-frequency knocking action, effectively breaking up the clumps of material. The heating assembly continuously maintains a molten environment, and together with the conveying of the spiral blades and the dynamic breaking of the connecting plate, the base resin, effect pigments, and basic pigments are fully integrated. The mixing uniformity is improved by more than 30% compared to traditional stirring methods, ensuring the consistency of the decorative effect and color of the jewelry.

[0017] The transfer tube of the transfer assembly is equipped with a threaded rotating ring, which works with the heating assembly to maintain a constant temperature and prevent the molten material from solidifying. When the sealing assembly of the mixing chamber is closed, it ensures that the material is fully mixed. When opened, it forms a synergistic mechanism with the vent, allowing high-pressure gas to enter and increase the air pressure in the mixing chamber. The rotating ring rotates and generates axial thrust through the threads, improving the conveying power of the high-viscosity molten material. At the same time, the threaded structure reduces the contact area between the material and the tube wall, reducing the risk of adhesion and achieving seamless and efficient material transfer from the mixing chamber to the molding assembly. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the overall device of the present invention; Figure 2 This is a cross-sectional structural diagram of the overall device of the present invention; Figure 3 This is a three-dimensional structural diagram of the hybrid component of the present invention; Figure 4 This is a schematic cross-sectional view of the hybrid component of the present invention; Figure 5 This is a schematic diagram of the connection structure of the rotating part of the present invention; Figure 6This is a schematic diagram of the connection structure of the working part of the present invention; Figure 7 This is a three-dimensional structural schematic diagram of the conveying component of the present invention; Figure 8 This is a three-dimensional structural diagram of the rotating part of the present invention.

[0019] Figure Descriptions: 1. Molding Component; 101. Molding Box; 102. Molding Cavity; 2. Conveying Component; 201. Connecting Belt; 202. Limiting Groove; 203. Clamping Part; 3. Transmission Component; 301. Transmission Pipe; 302. Rotating Ring; 4. Mixing Component; 401. Mixing Tank; 402. Mixing Cavity; 403. Feed Inlet; 404. Vent; 5. Working Part; 501. Movable Plate; 502. Telescopic Rod; 503. Mold Plate; 6. Sealing Component; 7. Rotating Part; 701. Rotating Shaft; 702. Spiral Blade; 703. Connecting Plate; 704. Elastic Part. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] like Figures 1-8 As shown, a paint-free material comprises the following components by weight percentage: 90-95% matrix resin, 0.5-3.5% effect color powder, 0.1-3% base color powder, and 0-20% filler; The effect color powder is at least one of aluminum powder, glass beads, glass shavings, pearlescent powder, straw powder, and wood powder; The base pigment includes at least one of inorganic pigments and organic pigments; The inorganic pigment is at least one of metal oxides, metal sulfides, metal sulfates, metal chromates, metal molybdates, and carbon black. The organic pigment is at least one of azo pigments, phthalocyanine pigments, heterocyclic pigments, lake pigments, fluorescent pigments, dyes, and fluorescent whitening agents.

[0022] This invention also includes a production apparatus for paint-free automotive trim, used for processing paint-free materials. It includes a molding component 1 for processing the trim, one end of which is connected to a conveying component 3 for transporting a mixed molten material. To ensure the molten material does not solidify in the conveying component 3, a heating component is provided in the conveying component 3 to ensure the material remains in a molten state. A mixing component 4 is connected to the end of the conveying component 3 away from the molding component 1. A rotating part 7 is connected inside the mixing component 4. After the paint-free material is placed into the mixing component 4, the rotating part 7 rotates the material... The materials in the mixing component 4 are fully mixed to ensure that the paint-free material is fully melted and can meet production requirements when it is formed in the molding component 1. The mixing component 4 is rotatably provided with a sealing component 6 on the side near the transfer component 3 for sealing and opening the mixing component 4. When the material enters the mixing component 4, the sealing component 6 seals the mixing component 4 to ensure that the rotating part 7 can fully mix and melt the material in the mixing component 4. Then, the sealing component 6 is controlled to rotate to realize the connection between the mixing component 4 and the transfer component 3, so that the molten material in the mixing component 4 can enter the molding component 1.

[0023] To improve the mixing efficiency of materials, the mixing assembly 4 includes a mixing tank 401 for containing materials. A mixing chamber 402 is provided inside the mixing tank 401. A heating assembly with the same structure and function as the transfer assembly 3 is connected to the wall of the mixing chamber 402. A rotating part 7 is located inside the mixing chamber 402. The material in the mixing chamber 402 is mixed by rotating the rotating part 7. At the same time, during the melting process of the material, the rotation of the rotating part 7 is used to ensure the uniformity of the molten material. The end of the mixing tank 401 near the forming assembly 1 is connected to the transfer assembly 3.

[0024] Meanwhile, in order to assist the molten material to be discharged from the mixing chamber 402, a vent 404 is provided on the side of the mixing chamber 402 away from the transmission component 3. The end of the vent 404 away from the mixing chamber 402 is connected to a high-pressure gas. When the molten material in the mixing chamber 402 is discharged, the high-pressure gas is introduced into the mixing chamber 402 through the vent 404 to increase the gas pressure value in the mixing chamber 402 and increase the rate of molten material discharge.

[0025] The rotating part 7 includes a rotating shaft 701 for driving, and a spiral blade 702 is connected to the outer circumference of the rotating shaft 701. The rotation of the rotating shaft 701 drives the spiral blade 702 to rotate, and during the rotation of the spiral blade 702, the material is conveyed on the spiral blade 702. That is, during the rotation of the spiral blade 702, the material located at the bottom of the mixing chamber 402 is conveyed to the upper end of the spiral blade 702, causing the material to fall freely in the mixing chamber 402, ensuring that the material is fully mixed. A plurality of elastic parts 704 are connected to the spiral blade 702 to prevent the material from agglomerating. The elastic parts 704 are located away from the spiral blade 702. The contact end is provided with multiple connecting plates 703 for crushing the solidified material. In use, the rotation of the spiral blade 702 drives the material to move on the spiral blade 702, thereby causing the connecting plates 703 to come into relative contact with the material. This ensures that the connecting plates 703 can crush the agglomerated material. At the same time, when the connecting plates 703 crush the material, the material will collide with the connecting plates 703. This will cause the elastic part 704 to deflect. When the elastic part 704 rebounds, it will cause the connecting plates 703 to reset, thereby increasing the force of the connecting plates 703 on the solidified material and improving the crushing efficiency.

[0026] Furthermore, in order to reduce heat loss during the transportation and molding process of molten material, which would affect the subsequent molding efficiency, the molding component 1 includes a molding box 101 for processing paint-free ornaments. The molding box 101 has a molding cavity 102 for processing paint-free materials, and the molding cavity 102 is interconnected with the conveying component 3, so that the molten material can directly enter the molding cavity 102. The molding cavity 102 is connected to a working part 5, so that the material entering the molding cavity 102 falls directly into the working part 5, ensuring that the working part 5 can process the molten material. The molding box 101 is also equipped with a conveying component 2 for transporting the molded ornaments. When the material enters the molding cavity 102 and then enters the working part 5, the working part 5 is used to promote the molding of the ornaments. After the ornaments are molded, the conveying component 2 is used to remove the material from the working part 5. It should be noted that the conveying component 2 and the working part 5 do not interfere with each other during operation.

[0027] Furthermore, in order to improve the conveying efficiency of molten material and reduce the adhesion between the material and the conveying component 3, the conveying component 3 includes a conveying pipe 301 for material conveying. The two ends of the conveying pipe 301 along the length direction are respectively connected to the mixing chamber 402 and the forming chamber 102. A rotating ring 302 is connected inside the conveying pipe 301 and is connected to the cavity wall of the mixing chamber 402. The inner ring of the rotating ring 302 is provided with a thread for conveying material. When the sealing component 6 is opened, the molten material enters the conveying pipe 301 from the mixing chamber 402. At this time, the rotating ring 302 is controlled to rotate, thereby driving the thread to rotate and causing the molten material to move rapidly in the conveying component 3. At the same time, the state of the molten material in the conveying component 3 is maintained by the heating component.

[0028] Furthermore, the working part 5 includes a movable plate 501 with a through hole, the position of which corresponds spatially to the position of the transmission component 3. When the material enters the molding cavity 102, it enters the working part 5 through the through hole. A telescopic rod 502 is connected to the movable plate 501, one end of which is connected to the cavity wall of the molding cavity 102. The telescopic rod 502 controls the position movement of the movable plate 501 and is also used to adjust the plastic pressure of the movable plate 501.

[0029] Furthermore, a mold plate 503 for fixing the shape of the ornament is connected to the side of the movable plate 501 away from the transmission component 3. After the telescopic rod 502 drives the movable plate 501 to contact the mold plate 503, the movable plate 501 can slide relative to the telescopic rod 502. This ensures that the pressure between the mold plate 503 and the movable plate 501 can promote the molding of the paint-free material ornament. When the movable plate 501 abuts against the mold plate 503, it plastically shapes the molten material. The relative sliding between the movable plate 501 and the telescopic rod 502 ensures that the pressure between the movable plate 501 and the mold plate 503 meets the requirements for molding the paint-free ornament.

[0030] Furthermore, to facilitate the removal of the molded ornaments from the molding component 1 and reduce the work risks for workers, the conveying component 2 includes two connecting belts 201 for transmission. The two connecting belts 201 are symmetrically distributed on the molding component 1 and are located on both sides of the working part 5. Each of the two connecting belts 201 is connected to a limiting groove 202 for constraining the movement of the connecting belt 201. At the same time, at both ends of the connecting belt 201 along its length, there are locking blocks for constraining the limiting grooves 202. The locking blocks are used to limit the movement of the limiting grooves 202. The connecting belt 201 is equipped with multiple clamping parts 203 for removing the mold from the working part 5. The specific structure of the clamping part 203 consists of an adjustable length movable rod and a workpiece for clamping the ornament. After the movable plate 501 finishes processing the material on the mold plate 503, the movable plate 501 is reset by the telescopic rod 502, and then the clamping part 203 is controlled to clamp the ornament on the mold plate 503. The movement of the connecting belt 201 drives the clamping part 203 to move, and the formed ornament is taken out from the forming component 1.

[0031] It should be noted that, in order to avoid positional interference between the conveying component 2 and the working part 5, a groove is opened on the forming component 1 during the setting process, the conveying component 2 is located in the groove, and in the forming cavity 102, the two connecting belts 201 are located on both sides of the working part 5, thereby ensuring that the working part 5 will not damage the conveying component 2 during the working process.

[0032] When producing paint-free automotive trim, the paint-free material components, configured according to mass percentage, are first fed into the mixing chamber 402 through the feed port 403 of the mixing tank 401.

[0033] At this time, the sealing component 6 on the side of the mixing chamber 402 near the transfer pipe 301 is in the closed state, isolating the mixing chamber 402 from the transfer component 3, ensuring that the material can be fully mixed and melted within the mixing chamber 402. The heating component in the mixing component 4 is activated to heat the material in the mixing chamber 402, causing the matrix resin to gradually melt, providing a good material state for subsequent mixing.

[0034] Subsequently, the rotating part 7 begins to operate, and the rotating shaft 701 rotates under the drive of the drive device, causing the spiral blade 702 on its outer circumference to rotate as well. The rotation of the spiral blade 702 not only drives the material in the mixing chamber 402 to be conveyed upward in the spiral direction, but also causes the material to tumble and collide during the conveying process. At the same time, the multiple elastic parts 704 connected to the spiral blade 702 undergo elastic deformation under the impact of the material and the driving force of the spiral blade 702, and the connecting plate 703 at the end of the elastic part 704 away from the spiral blade 702 then produces irregular oscillation and knocking motions.

[0035] When there are lumps or insufficiently dispersed particles in the material, the connecting plate 703 will effectively break them up, and the rebound effect of the elastic part 704 will enhance the impact force of the connecting plate 703 on the lumps, further improving the breaking efficiency. After the material reaches the upper part of the mixing chamber 402 under the conveying of the spiral blade 702, it will fall to the bottom of the mixing chamber 402 due to gravity, forming a circulating mixing process. With the continuous heating of the heating component, it is ensured that the matrix resin, effect color powder, base color powder, auxiliary masterbatch and filler are uniformly mixed in the molten state, so that the effect color powder (such as aluminum powder, pearlescent powder, etc.) can be uniformly dispersed to present the expected decorative effect, the base color powder ensures the overall color consistency, and the auxiliary masterbatch improves the material processing performance.

[0036] When the material in the mixing chamber 402 reaches the preset mixing requirements, the heating component in the transmission component 3 is activated to maintain the temperature in the transmission pipe 301 and prevent the molten material from solidifying during transmission. The control sealing component 6 is rotated and opened under the action of the drive mechanism, so that the mixing chamber 402 is connected to the transmission pipe 301 of the transmission component 3.

[0037] At this time, the molten material in the mixing chamber 402 enters the transfer pipe 301 under the continuous push of the spiral blade 702. The rotating ring 302 in the transfer pipe 301 begins to rotate, and the thread on its inner ring rotates with the rotating ring 302, generating an axial thrust on the molten material and stably conveying the material towards the molding component 1.

[0038] After the molten material enters the molding cavity 102 within the molding box 101 of the molding assembly 1 via the transfer pipe 301, it precisely falls through the through-hole on the movable plate 501 in the working part 5 into the cavity between the movable plate 501 and the mold plate 503. Subsequently, the telescopic rod 502 connected to the movable plate 501 extends, pushing the movable plate 501 towards the mold plate 503. When the movable plate 501 contacts the mold plate 503, the telescopic rod 502 continues to apply thrust, at which point relative sliding occurs between the movable plate 501 and the telescopic rod 502, ensuring that the movable plate 501 can tightly fit the mold plate 503, so that the molten material in the cavity is molded under a preset pressure, ensuring the shape accuracy and surface quality of the paint-free automotive trim. During the molding process, the closed environment of the molding cavity 102 and the heating effect of the transfer assembly 3 work together to maintain the molten state of the material, preventing the molding effect from being affected by temperature drop.

[0039] After the ornament has cooled and solidified between the mold plate 503 and the movable plate 501, the telescopic rod 502 retracts, moving the movable plate 501 away from the mold plate 503 and releasing the pressure on the formed ornament. At this time, the conveying component 2 inside the forming box 101 starts to work. Two symmetrically distributed connecting belts 201 move along a preset trajectory. The limiting grooves 202 on the connecting belts 201 cooperate with the locking blocks on the forming box 101 to ensure that the moving trajectory of the connecting belts 201 is accurate and to avoid interference with the working part 5. The clamping part 203 on the connecting belts 201 extends under the driving action. After its length-adjustable movable rod is adjusted to a suitable position, it clamps the workpiece to stably hold the ornament formed on the mold plate 503. Subsequently, the connecting belts 201 continue to move, driving the clamping part 203 to remove the formed ornament from the forming cavity 102, completing the part removal process.

[0040] After the part is picked up, the conveying component 2 is reset and waits for the next part to be picked up, while the working part 5 is ready to receive the next batch of molten material and enter the next production cycle.

[0041] Specifically, in the mixing component 4, the rotating part 7 not only achieves the circulation flow of material by conveying it from the bottom and dropping it from the top through the spiral angle design, but also forms a dynamic crushing effect through the cooperation of the elastic part 704 and the connecting plate 703. When the connecting plate 703 collides with the agglomerated material, the elastic part 704 deflects due to the force, and the impact force generated when it rebounds can enhance the crushing effect, making the mixing uniformity more than 30% higher than that of traditional stirring paddles.

[0042] Furthermore, traditional pipes are prone to solidification or adhesion of molten material due to temperature fluctuations during use. Therefore, the rotating ring 302 within the transmission pipe 301 and the heating component form a dual protection mechanism. When the rotating ring 302 rotates, its threads generate a helical thrust to transport the molten material, working in conjunction with the heating component to maintain a constant temperature within the transmission pipe 301 (preventing solidification due to cooling). Simultaneously, the threaded structure reduces the contact area between the material and the pipe wall, lowering the risk of adhesion. More importantly, the sealing component 6 of the mixing chamber 402 and the vent 404 form a pneumatically assisted transport mechanism. When the sealing component 6 is opened, high-pressure gas is introduced through the vent 404, increasing the air pressure within the mixing chamber 402. This, combined with the helical thrust of the rotating ring 302, solves the problem of insufficient power for transporting high-viscosity molten material, achieving seamless connection between the mixing chamber 402 and the forming component 1.

[0043] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A paint-free material, characterized in that: The product comprises the following components by weight percentage: 90-95% matrix resin, 0.5-3.5% effect colorant, 0.1-3% base colorant, and 0-20% filler; The effect color powder is at least one of aluminum powder, glass beads, glass shavings, pearlescent powder, straw powder, and wood powder; The base pigment includes at least one of inorganic pigments and organic pigments; The inorganic pigment is at least one of metal oxides, metal sulfides, metal sulfates, metal chromates, metal molybdates, and carbon black. The organic pigment is at least one of azo pigments, phthalocyanine pigments, heterocyclic pigments, lake pigments, fluorescent pigments, dyes, and fluorescent whitening agents.

2. A production apparatus for paint-free automotive trim, used for processing the paint-free material as described in claim 1, characterized in that: It includes a molding component (1), one end of which is connected to a transmission component (3), the other end of which is connected to a mixing component (4) away from the molding component (1), a rotating part (7) is connected inside the mixing component (4), and a sealing component (6) is connected to the side of the mixing component (4) near the transmission component (3). The mixing component (4) includes a mixing tank (401), a mixing cavity (402) is provided inside the mixing tank (401), the rotating part (7) is located inside the mixing cavity (402), and the end of the mixing tank (401) near the molding component (1) is connected to the transfer component (3). The rotating part (7) includes a rotating shaft (701), a spiral blade (702) is connected to the outer circumference of the rotating shaft (701), a plurality of elastic parts (704) are connected to the spiral blade (702), and a plurality of connecting plates (703) are provided on the end of the elastic part (704) away from the spiral blade (702).

3. The production apparatus for paint-free automotive trim according to claim 2, characterized in that: The molding component (1) includes a molding box (101), a molding cavity (102) is provided inside the molding box (101), a working part (5) is connected inside the molding cavity (102), and a conveying component (2) is movably provided inside the molding box (101).

4. The production apparatus for paint-free automotive trim according to claim 2, characterized in that: The transmission component (3) includes a transmission pipe (301), a rotating ring (302) is connected inside the transmission pipe (301), and the rotating ring (302) is connected to the cavity wall of the mixing chamber (402), and the inner ring of the rotating ring (302) is provided with a thread for conveying materials.

5. The production apparatus for paint-free automotive trim according to claim 3, characterized in that: The working part (5) includes a movable plate (501), on which a through hole is provided, and the position of the through hole corresponds spatially to the position of the transmission component (3). A telescopic rod (502) is connected to the movable plate (501), and one end of the telescopic rod (502) is connected to the cavity wall of the molding cavity (102).

6. The production apparatus for paint-free automotive trim according to claim 5, characterized in that: The movable plate (501) is connected to a mold plate (503) on the side away from the transmission component (3), and after the telescopic rod (502) drives the movable plate (501) to contact the mold plate (503), the movable plate (501) can slide relative to the telescopic rod (502).

7. The production apparatus for paint-free automotive trim according to claim 3, characterized in that: The conveying assembly (2) includes two connecting belts (201), each of which is connected to a limiting groove (202), and the connecting belts (201) are connected to a plurality of clamping parts (203) for removing the mold from the working part (5).

8. The production apparatus for paint-free automotive trim according to claim 2, characterized in that: A heating component is connected within the mixing component (4) and the transmission component (3).

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