An injection molding and foaming forming device and method for an automotive TPO interior soft touch part

Abstract

The present invention relates to the technical field of injection molding and foaming, and discloses an injection molding and foaming device and method for automotive TPO interior soft-touch parts, including an injection molding and foaming machine. One side of the injection molding and foaming machine close to the injection die head is fixedly connected with a foaming mechanism, and one side of the injection molding and foaming machine close to the control platform is fixedly connected with a mixing mechanism. The top of the mixing mechanism is fixedly connected with a feeding box. The top end inside the feeding box is movably connected with a dispersing mechanism, and the side surface of the feeding box is fixedly connected with a cleaning mechanism; through the provision of a connecting plate, a rotating rod, a dispersing plate, and a sealing frame, when the servo motor is started, the connecting plate is driven to rotate through the output shaft. At this time, the rotating rod rotates inside the dispersing plate and causes the dispersing plate to move inside the sealing frame. When the dispersing plate reciprocates inside the sealing frame, the sealing frame will disperse the raw materials falling on the sealing frame and drop them through the holes inside the sealing frame, avoiding the adhesion between the raw materials.

Description

Technical Field

[0001] The present invention relates to the technical field of injection molding and foaming, and more particularly to an injection molding and foaming device and method for automotive TPO interior soft touch parts. Background Art

[0002] TPO is a new type of automotive interior material, with the full English name Thermoplastic polyolefin, a thermoplastic polyolefin elastomer. Compared with PVC materials, TPO materials have the advantages of low density, energy conservation and environmental protection. As a plastic material, when preparing interior soft touch parts, it needs to be produced by injection molding and foaming.

[0003] The injection foaming molding technology is a one-shot molding method, with high production efficiency and good product quality. It is suitable for foam plastic products with complex shapes and strict dimensional requirements, and is also the main method for producing structural foam bodies. The injection foaming molding method is to add inactive gases such as azobisisobutyronitrile and nitrogen, as well as propane and butane as blowing agents to the resin, and add them to the molding material. The molding material is melted through the heating barrel of the injection molding machine and injected into the mold to obtain a foamed product.

[0004] When the current injection molding and foaming equipment is working, various raw materials need to be added into the feeding mechanism and then into the molding machine through the feeding mechanism. Since the working environment temperature of the molding machine is relatively high, it is easy for various raw materials to stick to each other. When the mutually sticky raw materials are melted, they cannot be completely melted, thus affecting the quality of the finished product.

[0005] Before the raw materials enter the molding equipment, they need to be cleaned and then can be molded. However, after cleaning, they also need to go through transportation and feeding links before molding. During transportation and feeding, dust may adhere to the surface again, affecting the quality of the finished product. If the various raw materials for molding are not mixed evenly enough, it will also affect the quality of the finished product. And the injection molding and foaming equipment needs to add a gas blowing agent, and the gas is greatly affected by temperature. If the temperature is too low, it will affect the normal foaming work. Summary of the Invention

[0006] In order to overcome the above-mentioned defects of the prior art, embodiments of the present invention provide an injection molding and foaming device and method for automotive TPO interior soft touch parts to solve the technical problems proposed in the background art.

[0007] To achieve the above object, the present invention provides the following technical solution: an injection molding and foaming forming device for an automotive TPO interior soft-touch component, including an injection molding and foaming machine, a control platform is fixedly connected to one side of the injection molding and foaming machine, an injection mold head is fixedly connected to the other side of the injection molding and foaming machine, a foaming mechanism is fixedly connected to one side of the injection molding and foaming machine near the injection mold head, a mixing mechanism is fixedly connected to one side of the injection molding and foaming machine near the control platform, a feeding box is fixedly connected to the top of the mixing mechanism, a dispersing mechanism is movably connected to the top inside the feeding box, and a cleaning mechanism is fixedly connected to the side of the feeding box;

[0008] The dispersing mechanism includes a servo motor that provides power. The top of the servo motor is fixedly connected to an output shaft. The top of the output shaft is fixedly connected to a connecting plate. A rotating rod is fixedly connected to the side of the output shaft. A dispersing plate is movably connected to the side of the rotating rod. The rotating rod is located in an arc groove formed in the dispersing plate.

[0009] In a preferred embodiment, a sealing frame is movably connected to the side of the dispersing plate. The dispersing plate is located inside the feeding box and is fixedly connected to the feeding box. An inclined surface is provided at the top of the sealing frame, and the top of the inclined surface of the sealing frame is in contact with the inside of the feeding box. The bottom of the inclined surface of the dispersing plate is in contact with the top of the dispersing plate.

[0010] In a preferred embodiment, a first sealing box is fixedly connected to the side of the feeding box near the servo motor. The sides of the connecting plate and the rotating rod are both located inside the first sealing box. A second sealing box is fixedly connected to the side of the feeding box away from the servo motor. The sealing frame is located inside the second sealing box.

[0011] In a preferred embodiment, the mixing mechanism includes an output bevel gear that rotates synchronously with the output shaft. A driving bevel gear is engaged with the side of the output bevel gear. A rotating shaft is fixedly connected to the side of the driving bevel gear away from the output bevel gear. A first bevel gear is fixedly connected to the side of the rotating shaft away from the driving bevel gear. A second bevel gear is engaged with the bottom of the first bevel gear. A stirring shaft is fixedly connected to the bottom of the second bevel gear. Stirring blades are fixedly connected to the side of the stirring shaft.

[0012] In a preferred embodiment, a protection box is fixedly connected to the side of the rotating shaft. The first bevel gear and the second bevel gear are located inside the protection box. A fixing rod is fixedly connected to the side of the protection box away from the driving bevel gear. A conical cylinder is fixedly connected to the side of the fixing rod away from the driving bevel gear, and the top of the conical cylinder is fixedly connected to the bottom of the feeding box.

[0013] In a preferred embodiment, the cleaning mechanism includes an air inlet pipe for supplying gas. The top end of the air inlet pipe is fixedly connected to a first branch pipe, and the bottom end of the air inlet pipe is fixedly connected to a second branch pipe. An upper filter plate is provided on the side of the first branch pipe close to the second branch pipe, and the first branch pipe blows gas onto the upper filter plate. A lower filter plate is provided on the side of the second branch pipe close to the first branch pipe, and the second branch pipe blows gas onto the lower filter plate. The lower filter plate is located below the upper filter plate.

[0014] In a preferred embodiment, a first partition plate is fixedly connected to the side of the second branch pipe. Both sides of the first partition plate are fixedly connected to the inside of the feeding box, and there is a distance of three centimeters between the side of the first partition plate away from the first branch pipe and the inner side of the feeding box. A second partition plate is fixedly connected to the side of the feeding box away from the upper filter plate. There is a distance of one centimeter between the side of the second partition plate away from the upper filter plate and the inner side of the feeding box.

[0015] In a preferred embodiment, discharge channels are fixedly connected to the sides of the lower filter plate and the upper filter plate away from the feeding box. The discharge channels are connected to a bag filter. A cross arc plate is fixedly connected to each hole of the upper filter plate and the lower filter plate.

[0016] In a preferred embodiment, the foaming mechanism includes a foaming machine storage tank. The top end of the foaming machine storage tank is fixedly connected to a discharge pipe. The bottom end of the discharge pipe away from the foaming machine storage tank is fixedly connected to an air inlet head. The air inlet head connects the discharge pipe and an injection molding and foaming machine. A heating box is fixedly connected to the side of the discharge pipe.

[0017] The technical effects and advantages of the present invention:

[0018] 1. In the present invention, by providing a connecting plate, a rotating rod, a dispersing plate, and a sealing frame, when the servo motor is started, the connecting plate is driven to rotate through the output shaft. At this time, the rotating rod rotates within the dispersing plate and causes the dispersing plate to move within the sealing frame. When the dispersing plate reciprocates within the sealing frame, the sealing frame will disperse the raw materials falling on the sealing frame and drop them through the holes inside the sealing frame, avoiding the raw materials from sticking to each other.

[0019] 2. The gas in the present invention enters the first branch pipe and the second branch pipe through the air inlet pipe. When the gas enters the first branch pipe, it blows air into the feeding box. The dust on the raw materials will be blown into the upper filter plate and discharged, while the raw materials will fall again on the surface of the upper filter plate. The raw materials falling again will be blown by the second branch pipe to the surface of the other lower filter plate for cleaning again. Finally, the clean raw materials fall from the surface of the lower filter plate.

[0020] 3. The raw materials cleaned by the cleaning mechanism in the present invention will enter the mixing mechanism. When the servo motor starts, the output bevel gear rotates synchronously, and finally the stirring shaft drives the stirring blades to rotate. When the cross-arc plate rotates, it stirs the raw materials entering the conical cylinder, making different raw materials disperse evenly. And the foaming agent in the storage tank of the foaming machine will be heated by the heating box during use, making the foaming agent in a critical state and improving the foaming effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the feeding box structure of the present invention.

[0023] Figure 3 It is a schematic diagram of the dispersing mechanism structure of the present invention.

[0024] Figure 4 It is a schematic diagram of the dispersing plate structure in the sealing frame of the present invention.

[0025] Figure 5 It is a schematic diagram of the mixing mechanism structure of the present invention.

[0026] Figure 6 It is a schematic diagram of the internal structure of the protection box of the present invention.

[0027] Figure 7 It is a schematic diagram of the cleaning mechanism structure of the present invention.

[0028] Figure 8 It is a schematic diagram of the cross-arc plate structure in the lower filter plate of the present invention.

[0029] Figure 9 It is a schematic diagram of the foaming mechanism structure of the present invention.

[0030] The reference numerals are as follows: 1, injection molding and foaming machine; 2, control platform; 3, injection molding die head; 4, feeding box; 5, dispersion mechanism; 501, servo motor; 502, output shaft; 503, connecting plate; 504, rotating rod; 505, dispersion plate; 506, sealing frame; 507, first sealed box; 508, second sealed box; 6, mixing mechanism; 601, output bevel gear; 602, driving bevel gear; 603, rotating shaft; 604, first bevel gear; 605, second bevel gear; 606, protection box; 607, fixed rod; 608, stirring shaft; 609, stirring blade; 610, conical cylinder; 7, cleaning mechanism; 701, intake pipe; 702, first branch pipe; 703, second branch pipe; 704, upper filter plate; 705, lower filter plate; 706, discharge channel; 707, first partition plate; 708, second partition plate; 709, cross arc plate; 8, foaming mechanism; 801, foaming machine storage tank; 802, discharge pipe; 803, air intake head; 804, heating box. Detailed implementation manners

[0031] Next, the technical solutions in the present invention will be clearly and completely described in conjunction with the accompanying drawings in the present invention. In addition, the forms of each structure described in the following embodiments are merely examples, and an injection molding and foaming equipment and method for an automotive TPO interior soft-touch component involved in the present invention are not limited to the structures described in the following embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0032] Referring to Figure 1 And Figure 2 , the present invention provides an injection molding and foaming equipment for an automotive TPO interior soft-touch component, including an injection molding and foaming machine 1. One side of the injection molding and foaming machine 1 is fixedly connected with a control platform 2, the other side of the injection molding and foaming machine 1 is fixedly connected with an injection molding die head 3, one side of the injection molding and foaming machine 1 near the injection molding die head 3 at the top is fixedly connected with a foaming mechanism 8, one side of the injection molding and foaming machine 1 near the control platform 2 at the top is fixedly connected with a mixing mechanism 6, the top of the mixing mechanism 6 is fixedly connected with a feeding box 4, the top inside the feeding box 4 is movably connected with a dispersion mechanism 5, and the side of the feeding box 4 is fixedly connected with a cleaning mechanism 7.

[0033] In the embodiment of the present application, during injection molding, the feeding box 4 disperses the raw materials, the dispersion mechanism 5 cleans the dispersed raw materials, and after cleaning, the raw materials are stirred and mixed by the mixing mechanism 6 to make the raw materials evenly mixed. The evenly mixed raw materials enter the injection molding and foaming machine 1 to be melted. The foaming mechanism 8 adds a foaming agent into the melted raw materials, and after mixing again, it is discharged into the mold through the injection molding die head 3 to complete the injection molding and foaming work. The produced products have less impurities, uniform bubbles, and higher quality.

[0034] Reference Figure 3 and Figure 4 The scattering mechanism 5 includes a servo motor 501 for providing power, the top of the servo motor 501 is fixedly connected to an output shaft 502, the top of the output shaft 502 is fixedly connected to a connecting plate 503, the side of the output shaft 502 is fixedly connected to a rotating rod 504, the side of the rotating rod 504 is movably connected to a scattering plate 505, the rotating rod 504 is located in an arc groove opened by the scattering plate 505, the side of the scattering plate 505 is movably connected to a sealing frame 506, and the scattering plate 505 is located inside the loading box 4 and is fixedly connected to the loading box 4 A slope is provided on the top of the sealing frame 506, and the top of the slope of the sealing frame 506 contacts the inside of the feeding box 4, and the bottom end of the slope of the scattering plate 505 contacts the top of the scattering plate 505. The side of the feeding box 4 close to the servo motor 501 is fixedly connected to the first sealing box 507, and the sides of the connecting plate 503 and the rotating rod 504 are both located in the first sealing box 507. The side of the feeding box 4 away from the servo motor 501 is fixedly connected to the second sealing box 508, and the sealing frame 506 is located in the second sealing box 508.

[0035] In the embodiment of the present application, when the rotating rod 504 rotates in the sliding groove of the scattering plate 505, the scattering plate 505 will reciprocate. The reciprocating scattering plate 505 can scatter the raw materials that fall on the scattering plate 505, and the diameter of the holes in the scattering plate 505 is larger than the diameter of all the raw materials, ensuring that the raw materials can be discharged normally. Since the scattering plate 505 is in a reciprocating state, the raw materials will also fall from various places of the scattering plate 505 when falling through the scattering plate 505, avoiding the accumulation of raw materials. The top of the sealing frame 506 is an inclined surface, and the scattering plate 505 moves in the sealing frame 506. The sealing frame 506 can ensure the stability of the scattering plate 505 when moving, and the inclined surface on the sealing frame 506 makes it easy for the raw materials to fall onto the scattering plate 505 to avoid the raw materials from getting stuck. The first sealing box 507 and the second sealing box 508 seal and avoid the moving scattering plate 505 to ensure that the scattering plate 505 can move smoothly.

[0036] Reference Figure 5 and Figure 6, the mixing mechanism 6 includes an output bevel gear 601 that rotates synchronously with the output shaft 502. A transmission bevel gear 602 is meshed with the side surface of the output bevel gear 601. A rotating shaft 603 is fixedly connected to the side surface of the transmission bevel gear 602 away from the output bevel gear 601. A first bevel gear 604 is fixedly connected to the side surface of the rotating shaft 603 away from the transmission bevel gear 602. A second bevel gear 605 is meshed with the bottom end of the first bevel gear 604. A stirring shaft 608 is fixedly connected to the bottom end of the second bevel gear 605. Stirring blades 609 are fixedly connected to the side surface of the stirring shaft 608. A protective box 606 is fixedly connected to the side surface of the rotating shaft 603. The first bevel gear 604 and the second bevel gear 605 are located inside the protective box 606. A fixing rod 607 is fixedly connected to the side surface of the protective box 606 away from the transmission bevel gear 602. A conical cylinder 610 is fixedly connected to the side surface of the fixing rod 607 away from the transmission bevel gear 602, and the top end of the conical cylinder 610 is fixedly connected to the bottom end of the feeding box 4.

[0037] In the embodiment of the present application, when the raw materials fall into the conical cylinder 610, at this time, the stirring shaft 608 drives the stirring blades 609 to rotate, so as to mix the raw materials, make the different raw materials mix evenly, improve the quality of the final product, and the fixing rod 607 supports the protective box 606, making the transmission between the first bevel gear 604 and the second bevel gear 605 more stable. The upper part of the protective box 606 is arc-shaped to prevent the raw materials from falling on the protective box 606 and not being able to fall.

[0038] Refer to Figure 7 And Figure 8 , the cleaning mechanism 7 includes an air inlet pipe 701 for providing gas. A first branch pipe 702 is fixedly connected to the top end of the air inlet pipe 701. A second branch pipe 703 is fixedly connected to the bottom end of the air inlet pipe 701. An upper filter plate 704 is provided on the side surface of the first branch pipe 702 close to the second branch pipe 703, and the first branch pipe 702 blows the gas onto the upper filter plate 704. A lower filter plate 705 is provided on the side surface of the second branch pipe 703 close to the first branch pipe 702, and the second branch pipe 703 blows the gas onto the lower filter plate 705. The lower filter plate 705 is located below the upper filter plate 704. A first partition plate 707 is fixedly connected to the side surface of the second branch pipe 703. Both sides of the first partition plate 707 are fixedly connected to the inside of the feeding box 4, and there is a distance of three centimeters between the side surface of the first partition plate 707 away from the first branch pipe 702 and the inner side of the feeding box 4. A second partition plate 708 is fixedly connected to the side surface of the feeding box 4 away from the upper filter plate 704. There is a distance of one centimeter between the side surface of the second partition plate 708 away from the upper filter plate 704 and the inner side of the feeding box 4. Discharge channels 706 are fixedly connected to the side surfaces of the lower filter plate 705 and the upper filter plate 704 away from the feeding box 4. The discharge channels 706 are connected to a bag filter. Cross arc plates 709 are fixedly connected to each hole of the upper filter plate 704 and the lower filter plate 705.

[0039] In the embodiment of the present application, the intake pipe 701 discharges gas into the first branch pipe 702 and the second branch pipe 703, and the gas blows the raw materials onto the surface of the upper filter plate 704. Since the raw materials are relatively light, the raw materials and dust will be blown to the side of the upper filter plate 704 together. When the raw materials and dust are blown to the side of the upper filter plate 704, the dust will be blown into the upper filter plate 704, while the raw materials cannot pass through the upper filter plate 704 and will fall downward. At this time, the cleaned raw materials will fall on the surface of the upper filter plate 704 and will be located inside the side of the first partition plate 707 close to the upper filter plate 704 and directly enter the mixing mechanism 6. The raw materials originally close to the first branch pipe 702 will drop if they are not blown to the location of the upper filter plate 704. At this time, the second branch pipe 703 blows the raw materials to the side of the lower filter plate 705 to complete the cleaning work of the remaining raw materials. The second partition plate 708 has a distance of one centimeter. To ensure that the raw materials can fall, some raw materials will fall on the other side of the second partition plate 708, preventing the raw materials from entering the mixing mechanism 6 at the same location. Cross arc plates 709 are fixedly connected to each hole of the upper filter plate 704 and the lower filter plate 705 to prevent the raw materials from being stuck by the holes on their surfaces and unable to fall when being blown to the surfaces of the upper filter plate 704 and the lower filter plate 705. When the holes are stuck, the gas cannot be exhausted, which will also reduce the cleaning effect.

[0040] Refer to Figure 9 , the foaming mechanism 8 includes a foaming machine storage tank 801. The top of the foaming machine storage tank 801 is fixedly connected with a discharge pipe 802. The bottom of the discharge pipe 802 far from the foaming machine storage tank 801 is fixedly connected with an air inlet head 803. The air inlet head 803 connects the discharge pipe 802 and the injection foaming molding machine 1. A heating box 804 is fixedly connected to the side of the discharge pipe 802.

[0041] In the embodiment of the present application, the foaming agent in the foaming machine storage tank 801 will enter the discharge pipe 802 after coming out. If it is not heated by the heating box 804, the gas will cool down in the external environment at this time, and the foaming agent gas will deviate from the critical state after cooling down. At this time, the foaming effect will be affected. The present application can keep the foaming agent gas in the critical state, making the quality of the product after the foaming injection molding work higher.

[0042] The working principle of the present invention: The raw materials are added into the feeding box 4, and the raw materials entering the feeding box 4 fall above the dispersing plate 505 through the sealing frame 506. The servo motor 501 starts and drives the output shaft 502 to rotate. When the output shaft 502 rotates, it drives the rotating rod 504 to rotate in the chute of the dispersing plate 505 through the connecting plate 503. At this time, the dispersing plate 505 reciprocates in the sealing frame 506. The reciprocating movement of the dispersing plate 505 causes the raw materials on the dispersing plate 505 to be dispersed, and the dispersed raw materials fall into the feeding box 4 through the holes in the dispersing plate 505;

[0043] When the raw materials falling through the dispersion plate 505 pass through the first branch pipe 702, the air inlet pipe 701 exhausts air into the first branch pipe 702 and the second branch pipe 703. The gas blows the raw materials onto the surface of the upper filter plate 704. The dust on the surface of the raw materials is blown into the upper filter plate 704 and recovered through the discharge channel 706. Since the entire dispersion plate 505 discharges materials downward, some raw materials fail to be blown onto the surface of the upper filter plate 704 in time. Therefore, the raw materials that are blown onto the surface of the upper filter plate 704 for cleaning fall to the side of the first partition plate 707 away from the second partition plate 708 and directly fall into the conical cylinder 610. The raw materials that fail to be blown onto the surface of the upper filter plate 704 fall to the other side of the first partition plate 707. At this time, the second branch pipe 703 in the first partition plate 707 blows air, and the raw materials are blown onto the surface of the lower filter plate 705 for cleaning again;

[0044] The cleaned raw materials enter the conical cylinder 610. When the output shaft 502 rotates, it drives the transmission bevel gear 602 to rotate through the output bevel gear 601. When the transmission bevel gear 602 rotates, it drives the stirring shaft 608 to rotate through the transmission of the rotating shaft 603, the first bevel gear 604 and the second bevel gear 605. When the stirring shaft 608 rotates, it drives the stirring blades 609 to rotate to mix and stir the raw materials entering the conical cylinder 610;

[0045] The foaming agent comes out of the foaming machine storage tank 801 and enters the discharge pipe 802. The foaming agent in the discharge pipe 802 is heated by the heating box 804 and then added to the injection molding foaming machine 1 through the air inlet head 803 to complete the foaming injection molding work.

[0046] Finally: The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An injection molding and foaming forming device for an automotive TPO interior soft-touch component, comprising an injection molding and foaming forming machine (1), characterized in that: One side of the injection molding and foaming machine (1) is fixedly connected to a control platform (2), the other side of the injection molding and foaming machine (1) is fixedly connected to an injection mold head (3), one side of the top of the injection molding and foaming machine (1) close to the injection mold head (3) is fixedly connected to a foaming mechanism (8), one side of the top of the injection molding and foaming machine (1) close to the control platform (2) is fixedly connected to a mixing mechanism (6), the top of the mixing mechanism (6) is fixedly connected to a feeding box (4), the top inside the feeding box (4) is movably connected to a dispersing mechanism (5), and the side of the feeding box (4) is fixedly connected to a cleaning mechanism (7); The dispersing mechanism (5) includes a servo motor (501) that provides power. The top of the servo motor (501) is fixedly connected to an output shaft (502). The top of the output shaft (502) is fixedly connected to a connecting plate (503). The side of the output shaft (502) is fixedly connected to a rotating rod (504). The side of the rotating rod (504) is movably connected to a dispersing plate (505). The rotating rod (504) is located in an arc groove opened in the dispersing plate (505). The cleaning mechanism (7) includes an air inlet pipe (701) that provides gas. The top of the air inlet pipe (701) is fixedly connected to a first branch pipe (702). The bottom of the air inlet pipe (701) is fixedly connected to a second branch pipe (703). A upper filter plate (704) is provided on the side of the first branch pipe (702) close to the second branch pipe (703), and the first branch pipe (702) blows gas onto the upper filter plate (704). A lower filter plate (705) is provided on the side of the second branch pipe (703) close to the first branch pipe (702). The second branch pipe (703) blows gas onto the lower filter plate (705). The lower filter plate (705) is located below the upper filter plate (704). The side of the second branch pipe (703) is fixedly connected to a first partition plate (707). The two sides of the first partition plate (707) are fixedly connected to the inside of the feeding box (4). There is a three - centimeter distance between the side of the first partition plate (707) away from the first branch pipe (702) and the inner side of the feeding box (4). A second partition plate (708) is fixedly connected to the side of the feeding box (4) away from the upper filter plate (704). There is a one - centimeter distance between the side of the second partition plate (708) away from the upper filter plate (704) and the inner side of the feeding box (4). Exhaust channels (706) are fixedly connected to the sides of the lower filter plate (705) and the upper filter plate (704) away from the feeding box (4). The exhaust channels (706) are connected to a bag filter. A cross - arc plate (709) is fixedly connected to each hole of the upper filter plate (704) and the lower filter plate (705).

2. The injection molding and foaming forming equipment for the soft-touch parts of automotive TPO interiors according to claim 1, wherein: The side of the dispersion plate (505) is movably connected with a sealing frame (506). The dispersion plate (505) is located inside the feeding box (4) and fixedly connected with the feeding box (4). The top of the sealing frame (506) is provided with an inclined surface, and the top of the inclined surface of the sealing frame (506) is in contact with the inside of the feeding box (4). The bottom end of the inclined surface of the dispersion plate (505) is in contact with the top end of the dispersion plate (505).

3. The injection molding and foaming forming equipment for the automotive TPO interior soft-touch component according to claim 2, wherein: A first sealing box (507) is fixedly connected to the side of the feeding box (4) close to the servo motor (501). The sides of the connecting plate (503) and the rotating rod (504) are both located inside the first sealing box (507). A second sealing box (508) is fixedly connected to the side of the feeding box (4) away from the servo motor (501). The sealing frame (506) is located inside the second sealing box (508).

4. An injection molding and foaming forming device for an automotive TPO interior soft-touch part according to claim 1, characterized in that: The mixing mechanism (6) includes an output bevel gear (601) that rotates synchronously with the output shaft (502). A transmission bevel gear (602) is meshed with the side of the output bevel gear (601). A rotating shaft (603) is fixedly connected to the side of the transmission bevel gear (602) away from the output bevel gear (601). A first bevel gear (604) is fixedly connected to the side of the rotating shaft (603) away from the transmission bevel gear (602). A second bevel gear (605) is meshed with the bottom end of the first bevel gear (604). A stirring shaft (608) is fixedly connected to the bottom end of the second bevel gear (605). Stirring blades (609) are fixedly connected to the side of the stirring shaft (608).

5. The injection molding and foaming equipment for the soft-touch automotive TPO interior parts according to claim 4, characterized in that: A protection box (606) is fixedly connected to the side of the rotating shaft (603). The first bevel gear (604) and the second bevel gear (605) are located inside the protection box (606). A fixing rod (607) is fixedly connected to the side of the protection box (606) away from the transmission bevel gear (602). A conical cylinder (610) is fixedly connected to the side of the fixing rod (607) away from the transmission bevel gear (602), and the top end of the conical cylinder (610) is fixedly connected to the bottom end of the feeding box (4).

6. The injection molding and foaming equipment for the automotive TPO interior soft-touch component according to claim 1, characterized in that: The foaming mechanism (8) includes a foaming machine storage tank (801). A discharge pipe (802) is fixedly connected to the top of the foaming machine storage tank (801). An air inlet head (803) is fixedly connected to the bottom end of the discharge pipe (802) away from the foaming machine storage tank (801). The air inlet head (803) connects the discharge pipe (802) with the injection foaming molding machine (1). A heating box (804) is fixedly connected to the side of the discharge pipe (802).

7. An injection molding and foaming method for an automotive TPO interior soft-touch component, which uses the injection molding and foaming equipment for an automotive TPO interior soft-touch component as described in any one of claims 1-6, characterized in that, Including the following steps: Step S1: The raw materials are added into the feeding box (4). The raw materials entering the feeding box (4) fall above the dispersion plate (505) through the sealing frame (506). The servo motor (501) starts and drives the output shaft (502) to rotate. When the output shaft (502) rotates, it drives the rotating rod (504) to rotate in the chute of the dispersion plate (505) through the connecting plate (503). At this time, the dispersion plate (505) reciprocates in the sealing frame (506). The reciprocating movement of the dispersion plate (505) causes the raw materials on the dispersion plate (505) to be dispersed. The dispersed raw materials fall into the feeding box (4) through the holes in the dispersion plate (505). Step S2: When the raw materials falling through the dispersion plate (505) pass through the first branch pipe (702), the air inlet pipe (701) exhausts air into the first branch pipe (702) and the second branch pipe (703). The gas blows the raw materials onto the surface of the upper filter plate (704). The dust on the surface of the raw materials is blown into the upper filter plate (704) and recycled through the discharge channel (706). Since the entire dispersion plate (505) discharges materials downward, some raw materials fail to be blown onto the surface of the upper filter plate (704) in time. Therefore, the raw materials that are blown onto the surface of the upper filter plate (704) for cleaning fall to the side of the first partition plate (707) away from the second partition plate (708) and directly fall into the conical cylinder (610). The raw materials that fail to be blown onto the surface of the upper filter plate (704) fall to the other side of the first partition plate (707). At this time, the second branch pipe (703) in the first partition plate (707) blows air to blow the raw materials onto the surface of the lower filter plate (705) for cleaning again. Step S3: The cleaned raw materials enter the conical cylinder (610). When the output shaft (502) rotates, it drives the transmission bevel gear (602) to rotate through the output bevel gear (601). When the transmission bevel gear (602) rotates, it is transmitted through the rotating shaft (603), the first bevel gear (604), and the second bevel gear (605) to drive the stirring shaft (608) to rotate. When the stirring shaft (608) rotates, it drives the stirring blades (609) to rotate to mix and stir the raw materials entering the conical cylinder (610). Step S4: The foaming agent comes out of the foaming machine storage tank (801) and enters the discharge pipe (802). The foaming agent in the discharge pipe (802) is heated by the heating box (804) and then added into the injection foaming molding machine (1) through the air inlet head (803) to complete the foaming injection molding work.

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