Injection foaming forming equipment and method for automobile TPO (thermoplastic polyolefin) interior soft contact

Abstract

The invention relates to the technical field of injection foaming forming, and discloses an injection foaming forming device and method for an automobile TPO interior soft contact piece. The injection foaming forming device comprises an injection foaming forming machine, and the side, close to an injection mold head, of the top end of the injection foaming forming machine is fixedly connected with a foaming mechanism; a mixing mechanism is fixedly connected to the side, close to the control platform, of the top end of the injection foaming forming machine, a feeding box is fixedly connected to the top end of the mixing mechanism, a scattering mechanism is movably connected to the top end in the feeding box, and a cleaning mechanism is fixedly connected to the side face of the feeding box. Through the arrangement of the connecting plate, the rotating rod, the scattering plate and the sealing frame, when the servo motor is started, the connecting plate is driven to rotate through the output shaft, and at the moment, the rotating rod rotates in the scattering plate and enables the scattering plate to move in the sealing frame; and the sealing frame can scatter the raw materials falling on the sealing frame and then fall off through holes in the sealing frame, so that the raw materials are prevented from being bonded with one another.

Description

Technical Field

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

[0002] TPO is a new type of automotive interior material. Its full English name is Thermoplastic polyolefin. Compared with PVC material, TPO material has the advantages of low density, energy saving and environmental protection. As a plastic material, TPO needs to be produced by injection foaming when it is prepared into interior soft touch parts.

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

[0004] When the current injection foam molding equipment is working, various raw materials need to be added into the feeding mechanism, and then added into the molding machine through the feeding mechanism. The working environment temperature of the molding machine is relatively high, so various raw materials are prone to sticking to each other. When the raw materials sticking to each other are melted, they cannot be completely melted, which affects the quality of the finished product.

[0005] Before the raw materials enter the molding equipment, they need to be cleaned, and molding can only be carried out after cleaning. However, after cleaning, they also need to go through the transportation and loading links before molding. During transportation and loading, 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, it will also affect the quality of the finished product. The injection molding foaming equipment requires the addition of gas foaming agent. The gas is greatly affected by temperature. If the temperature is 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, an embodiment of the present invention provides an injection foaming molding device and method for automotive TPO interior soft touch parts to solve the technical problems raised in the background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an injection molding and foaming molding device for automotive TPO interior soft touch parts, comprising an injection molding and foaming molding machine, one side of the injection molding and foaming molding machine is fixedly connected to a control platform, the other side of the injection molding and foaming molding machine is fixedly connected to an injection die head, the top of the injection molding and foaming molding machine is fixedly connected to a foaming mechanism on the side close to the injection die head, the top of the injection molding and foaming molding machine is fixedly connected to a mixing mechanism on the side close to the control platform, the top of the mixing mechanism is fixedly connected to a feeding box, the top of the inside of the feeding box is movably connected to a breaking mechanism, and the side of the feeding box is fixedly connected to a cleaning mechanism;

[0008] The breaking up mechanism includes a servo motor for providing 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, the side of the output shaft is fixedly connected to a rotating rod, the side of the rotating rod is movably connected to a breaking up plate, and the rotating rod is located in an arc groove opened in the breaking up plate.

[0009] In a preferred embodiment, the side of the scattering plate is movably connected to a sealing frame, the scattering plate is located inside a loading box and fixedly connected to the loading box, a slope is provided on the top of the sealing frame, and the top of the slope of the sealing frame contacts the inside of the loading box, and the bottom of the slope of the scattering plate contacts the top of the scattering plate.

[0010] In a preferred embodiment, the side of the loading box close to the servo motor is fixedly connected to a first sealed box, the side of the connecting plate and the rotating rod are both located in the first sealed box, and the side of the loading box away from the servo motor is fixedly connected to a second sealed box, and the sealing frame is located in the second sealed box.

[0011] In a preferred embodiment, the mixing mechanism includes an output bevel tooth that rotates synchronously with the output shaft, the side of the output bevel tooth is meshed with a transmission bevel tooth, the side of the transmission bevel tooth away from the output bevel tooth is fixedly connected to a rotating shaft, the side of the rotating shaft away from the transmission bevel tooth is fixedly connected to a first bevel tooth, the bottom end of the first bevel tooth is meshed with a second bevel tooth, the bottom end of the second bevel tooth is fixedly connected to a stirring shaft, and the side of the stirring shaft is fixedly connected to a stirring blade.

[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 transmission bevel gear, a conical cylinder is fixedly connected to the side of the fixing rod away from the transmission bevel gear, and the top end of the conical cylinder is fixedly connected to the bottom end of the loading box.

[0013] In a preferred embodiment, the cleaning mechanism includes an air inlet pipe for providing gas, the top end of the air inlet pipe is fixedly connected to a first branch pipe, 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 will blow the gas toward the upper filter plate, and the second branch pipe is provided on the side of the second branch pipe close to the first branch pipe, and the second branch pipe will blow the gas toward the lower filter plate, and 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, and both sides of the first partition plate are fixedly connected to the inside of the loading box, and a distance of three centimeters is left between the side of the first partition plate away from the first branch pipe and the inner side of the loading box, and a second partition plate is fixedly connected to the side of the loading box away from the upper filter plate, and a distance of one centimeter is left between the side of the second partition plate away from the upper filter plate and the inner side of the loading box.

[0015] In a preferred embodiment, the sides of the lower filter plate and the upper filter plate away from the loading box are fixedly connected with a discharge channel, the discharge channel is connected to the bag dust collector, and a cross arc plate is fixedly connected in each hole of the upper filter plate and the lower filter plate.

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

[0017] Technical effects and advantages of the present invention:

[0018] 1. The present invention is provided with a connecting plate, a rotating rod, a breaking 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 in the breaking plate and makes the breaking plate move in the sealing frame. When the breaking plate moves back and forth in the sealing frame, the sealing frame will break up the raw materials falling on the sealing frame and then drop through the holes inside the sealing frame to avoid 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 and blows into the upper material box, the dust on the raw material will be blown into the upper filter plate and discharged, and the raw material will fall again on the surface of the upper filter plate. The raw material that is discharged again will be blown to the surface of the lower filter plate on the other side by the second branch pipe, and cleaned again. Finally, the clean raw material falls from the surface of the lower filter plate;

[0020] 3. In the present invention, the raw materials cleaned by the cleaning mechanism will enter the mixing mechanism, and when the servo motor is started, the output bevel gear will rotate synchronously, and finally the stirring shaft will drive the stirring blade to rotate. When the cross arc plate rotates, the raw materials entering the conical cylinder will be stirred, so that different raw materials are evenly dispersed, and the foaming agent in the foaming machine storage tank will be heated by the heating box when in use, so that the foaming agent is in a critical state, thereby 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 structure of the loading box of the present invention.

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

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

[0025] Figure 5 It is a schematic diagram of the structure of the mixing mechanism 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] Fig. 9 It is a schematic diagram of the foaming mechanism structure of the present invention.

[0030] The accompanying drawings are marked as follows: 1, injection foaming molding machine; 2, control platform; 3, injection mold head; 4, loading box; 5, scattering mechanism; 501, servo motor; 502, output shaft; 503, connecting plate; 504, rotating rod; 505, scattering plate; 506, sealing frame; 507, first sealing box; 508, second sealing box; 6, mixing mechanism; 601, output bevel gear; 602, transmission bevel gear; 603, rotating shaft; 604, first bevel gear; 605, second bevel gear; 606, Protection box; 607, fixing rod; 608, stirring shaft; 609, stirring blade; 610, conical cylinder; 7, cleaning mechanism; 701, air inlet 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 tank; 802, discharge pipe; 803, air inlet head; 804, heating box. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are only examples. The injection molding and foaming molding equipment and method of an automotive TPO interior soft touch part involved in the present invention are not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0032] Reference Figure 1 and Figure 2 The present invention provides an injection molding and foaming device for automotive TPO interior soft touch parts, including an injection molding and foaming molding machine 1, one side of the injection molding and foaming molding machine 1 is fixedly connected to a control platform 2, the other side of the injection molding and foaming molding machine 1 is fixedly connected to an injection die head 3, the top of the injection molding and foaming molding machine 1 is fixedly connected to a foaming mechanism 8 on the side close to the injection die head 3, the top of the injection molding and foaming molding machine 1 is fixedly connected to a mixing mechanism 6 on the side close to the control platform 2, the top of the mixing mechanism 6 is fixedly connected to a feeding box 4, the top of the inside of the feeding box 4 is movably connected to a breaking mechanism 5, and the side of the feeding box 4 is fixedly connected to a cleaning mechanism 7.

[0033] In the embodiment of the present application, when injection molding is performed, the feeding box 4 breaks up the raw materials, the breaking mechanism 5 cleans the broken up 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 foaming molding machine 1 for melting, and the foaming mechanism 8 adds a foaming agent to the melted raw materials. After mixing again, it is discharged into the mold through the injection die head 3 to complete the injection foaming molding work. The products produced have fewer 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 6The mixing mechanism 6 includes an output bevel gear 601 that rotates synchronously with the output shaft 502, the side of the output bevel gear 601 is meshed with a transmission bevel gear 602, the side of the transmission bevel gear 602 away from the output bevel gear 601 is fixedly connected to a rotating shaft 603, the side of the rotating shaft 603 away from the transmission bevel gear 602 is fixedly connected to a first bevel gear 604, the bottom end of the first bevel gear 604 is meshed with a second bevel gear 605, the bottom end of the second bevel gear 605 is fixedly connected to a stirring shaft 608, the side of the stirring shaft 608 is fixedly connected to a stirring blade 609, the side of the rotating shaft 603 is fixedly connected to a protection box 606, the first bevel gear 604 and the second bevel gear 605 are located inside the protection box 606, the side of the protection box 606 away from the transmission bevel gear 602 is fixedly connected to a fixing rod 607, the side of the fixing rod 607 away from the transmission bevel gear 602 is fixedly connected to a conical cylinder 610, and the top of the conical cylinder 610 is fixedly connected to the bottom end of the loading box 4.

[0037] In the embodiment of the present application, when the raw materials fall into the conical cylinder 610, the stirring shaft 608 will drive the stirring blades 609 to rotate, thereby mixing the raw materials, so that different raw materials are mixed evenly, and the quality of the final product is improved. The fixed rod 607 supports the protection box 606, so that the first bevel gear 604 and the second bevel gear 605 are transmitted more smoothly, and the top of the protection box 606 is arc-shaped to prevent the raw materials from falling on the protection box 606 and being unable to fall off.

[0038] Reference Figure 7 and Figure 8 The cleaning mechanism 7 includes an air inlet pipe 701 for providing 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, an 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 will blow the gas to the upper filter plate 704, the side of the second branch pipe 703 close to the first branch pipe 702 is provided with a lower filter plate 705, the second branch pipe 703 will blow the gas to 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 first partition Both sides of plate 707 are fixedly connected to the inside of the loading box 4, and the side of the first partition plate 707 away from the first branch pipe 702 is three centimeters away from the inner side of the loading box 4, and the side of the loading box 4 away from the upper filter plate 704 is fixedly connected to the second partition plate 708, and the side of the second partition plate 708 away from the upper filter plate 704 is one centimeter away from the inner side of the loading box 4, the lower filter plate 705 and the upper filter plate 704 are fixedly connected to the side of the loading box 4 away from the upper filter plate 704, and the discharge channel 706 is connected to the bag dust collector, and a cross arc plate 709 is 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 air inlet pipe 701 exhausts air into the first branch pipe 702 and the second branch pipe 703, and the gas blows the raw material to the surface of the upper filter plate 704. Since the raw material is light, the raw material and the dust will be blown to the side of the upper filter plate 704 together. When the raw material and the dust are blown to the side of the upper filter plate 704 together, the dust will be blown into the upper filter plate 704, and the raw material cannot pass through the upper filter plate 704 and falls downward. At this time, the cleaned raw material falls on the surface of the upper filter plate 704 and will be located on the side of the first partition plate 707 close to the upper filter plate 704, and directly enter the mixing mechanism 6, while the raw material originally close to the first branch pipe 702 cannot be blown to the upper filter plate 704. The filter plate 704 will drop, and the second branch pipe 703 will blow the raw material to the side of the lower filter plate 705 to complete the cleaning of the remaining raw material. The second partition plate 708 leaves a distance of one centimeter to ensure that the raw material can fall, so that part of the raw material can fall on the other side of the second partition plate 708, avoiding the raw material from entering the mixing mechanism 6 at the same place. A cross arc plate 709 is fixedly connected to each hole of the upper filter plate 704 and the lower filter plate 705 to avoid the raw material being stuck in the holes on the surface of the upper filter plate 704 and the lower filter plate 705 when it is blown to the surface. When the holes are stuck, exhaust cannot be carried out, which will also reduce the cleaning effect.

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

[0041] In the embodiment of the present application, the foaming agent in the foaming machine tank 801 will enter the exhaust pipe 802 after coming out. If it is not heated by the heating box 804, the gas will be cooled down under the external environment, and the foaming agent gas will leave the critical state after cooling down, which will affect the foaming effect. The present application can keep the foaming agent gas in a critical state, so that the product quality after the foaming injection molding work is completed is higher.

[0042] The working principle of the present invention is as follows: the raw materials are added into the feeding box 4, and the raw materials entering into the feeding box 4 fall onto the top of the scattering plate 505 through the sealing frame 506, the servo motor 501 is started and drives the output shaft 502 to rotate, and when the output shaft 502 rotates, the rotating rod 504 is driven to rotate in the slide groove of the scattering plate 505 through the connecting plate 503, and at this time, the scattering plate 505 reciprocates in the sealing frame 506, and the reciprocating movement of the scattering plate 505 causes the raw materials on the scattering plate 505 to be scattered, and the scattered raw materials fall into the feeding box 4 through the holes in the scattering plate 505;

[0043] When the raw materials dropped from the scattering 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, and the gas blows the raw materials to the surface of the upper filter plate 704, and 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 scattering plate 505 will discharge materials downward as a whole, some raw materials fail to be blown to the surface of the upper filter plate 704 in time. Therefore, the raw materials blown to 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 to 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 will blow air, and the raw materials are blown to the surface of the lower filter plate 705 for cleaning again.

[0044] The cleaned raw materials will enter the conical barrel 610, and when the output shaft 502 rotates, the output bevel gear 601 drives the transmission bevel gear 602 to rotate, and when the transmission bevel gear 602 rotates, it drives the stirring shaft 608 to rotate after being transmitted through the rotating shaft 603, the first bevel gear 604 and the second bevel gear 605, and when the stirring shaft 608 rotates, it drives the stirring blade 609 to rotate, so as to mix and stir the raw materials entering the conical barrel 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 into the injection foaming molding machine 1 through the air inlet head 803 to complete the foaming injection molding work.

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

Claims

1. An injection foaming molding device for automotive TPO interior soft touch parts, comprising an injection foaming molding machine (1), characterized in that: One side of the injection molding and foaming molding machine (1) is fixedly connected to a control platform (2), the other side of the injection molding and foaming molding machine (1) is fixedly connected to an injection die head (3), the top of the injection molding and foaming molding machine (1) close to the injection die head (3) is fixedly connected to a foaming mechanism (8), the top of the injection molding and foaming molding 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), and the top of the inside of the feeding box (4) is movably connected to a breaking mechanism (5), A cleaning mechanism (7) is fixedly connected to the side of the loading box (4); the scattering mechanism (5) comprises 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), and the rotating rod (504) is located in an arc groove formed in the scattering plate (505).

2. The injection foaming molding equipment for automotive TPO interior soft touch parts according to claim 1, characterized in that: The side of the scattering plate (505) is movably connected to a sealing frame (506); 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); the top of the slope of the sealing frame (506) is in contact with the inside of the loading box (4); and the bottom of the slope of the scattering plate (505) is in contact with the top of the scattering plate (505).

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

4. The injection foaming molding equipment for automotive TPO interior soft touch parts according to claim 1, characterized in that: The mixing mechanism (6) comprises an output bevel gear (601) which rotates synchronously with the output shaft (502); a side surface of the output bevel gear (601) is meshed with a transmission bevel gear (602); a side surface of the transmission bevel gear (602) away from the output bevel gear (601) is fixedly connected to a rotating shaft (603); a side surface of the rotating shaft (603) away from the transmission bevel gear (602) is fixedly connected to a first bevel gear (604); a bottom end of the first bevel gear (604) is meshed with a second bevel gear (605); a bottom end of the second bevel gear (605) is fixedly connected to a stirring shaft (608); and a side surface of the stirring shaft (608) is fixedly connected to a stirring blade (609).

5. The injection foaming molding equipment for automotive TPO interior soft touch 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 loading box (4).

6. The injection foaming molding equipment for automotive TPO interior soft touch parts according to claim 1, characterized in that: The cleaning mechanism (7) comprises an air inlet pipe (701) for providing gas, the top end of the air inlet pipe (701) being fixedly connected to a first branch pipe (702), the bottom end of the air inlet pipe (701) being fixedly connected to a second branch pipe (703), an upper filter plate (704) being provided on the side of the first branch pipe (702) close to the second branch pipe (703), and the first branch pipe (702) will blow the gas toward the upper filter plate (704), and a lower filter plate (705) being provided on the side of the second branch pipe (703) close to the first branch pipe (702), and the second branch pipe (703) will blow the gas toward the lower filter plate (705), and the lower filter plate (705) is located below the upper filter plate (704).

7. The injection foaming molding equipment for automotive TPO interior soft touch parts according to claim 6, characterized in that: A first partition plate (707) is fixedly connected to the side of the second branch pipe (703), and both sides of the first partition plate (707) are fixedly connected to the inside of the loading box (4), and a distance of three centimeters is left between the side of the first partition plate (707) away from the first branch pipe (702) and the inner side of the loading box (4). A second partition plate (708) is fixedly connected to the side of the loading box (4) away from the upper filter plate (704), and a distance of one centimeter is left between the side of the second partition plate (708) away from the upper filter plate (704) and the inner side of the loading box (4).

8. The injection foaming molding equipment for automotive TPO interior soft touch parts according to claim 7, characterized in that: The sides of the lower filter plate (705) and the upper filter plate (704) away from the loading box (4) are fixedly connected with a discharge channel (706), the discharge channel (706) is connected to a bag filter, and each hole of the upper filter plate (704) and the lower filter plate (705) is fixedly connected with a cross arc plate (709).

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

10. An injection molding and foaming method for automotive TPO interior soft touch parts, using an injection molding and foaming device for automotive TPO interior soft touch parts as described in claims 1-9, characterized in that: The following steps are involved: Step S1, raw materials are added into the feeding box (4), and the raw materials entering the feeding box (4) pass through the sealing frame (506) and fall onto the top of the scattering plate (505), the servo motor (501) is started and drives the output shaft (502) to rotate, and when the output shaft (502) rotates, it drives the rotating rod (504) to rotate in the slide groove of the scattering plate (505) through the connecting plate (503), and at this time, the scattering plate (505) reciprocates in the sealing frame (506), and the reciprocating movement of the scattering plate (505) causes the raw materials on the scattering plate (505) to be scattered, and the scattered raw materials pass through the holes in the scattering plate (505) and fall into the feeding box (4); Step S2, when the raw materials dropped from the scattering 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), and the gas blows the raw materials onto the surface of the upper filter plate (704), and 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 scattering plate (505) as a whole discharges the materials downward, some of the raw materials fail to be blown onto the upper filter plate (704) in time. ), so the raw materials that are blown onto the surface of the upper filter plate (704) for cleaning fall onto the side of the first partition plate (707) away from the second partition plate (708) and directly fall into the conical cylinder (610), and the raw materials that fail to be blown onto the surface of the upper filter plate (704) fall onto the other side of the first partition plate (707), at which time the second branch pipe (703) in the first partition plate (707) will blow 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), and when the output shaft (502) rotates, the output conical gear (601) drives the transmission conical gear (602) to rotate, and when the transmission conical gear (602) rotates, it drives the stirring shaft (608) to rotate after being transmitted through the rotating shaft (603), the first conical gear (604) and the second conical gear (605), and when the stirring shaft (608) rotates, it drives the stirring blade (609) to rotate, so as 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), completing the foaming injection molding work.

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