An automotive interior molding device and process

Abstract

An automotive interior molding device and process according to the present application relate to the technical field of injection molding machines. It includes a base, an injection molding component, a mold component, a heating component, and a linkage member. The injection molding component includes a barrel and a screw. One end of the barrel is provided as a nozzle, and the nozzle is connected to the injection molding component. A feed hopper is communicated with the barrel. One end of the screw is located inside the barrel, and one end of the screw is located outside the barrel and is connected to a rotating motor. The heating component includes multiple groups of electromagnetic coils installed on the base, and the multiple groups of electromagnetic coils are coaxially sleeved on the barrel, and the multiple groups of electromagnetic coils do not contact the barrel. The linkage member is installed on the screw, and the screw can drive the barrel to rotate reciprocally around its own axis through the linkage member to cut the magnetic field generated by the electromagnetic coils. The present application has the effect of being able to reduce the heat dissipation on the barrel, thereby improving the energy utilization rate. At the same time, the equipment and process of the present application can also improve the production quality of products.

Description

Technical Field

[0001] This application relates to the technical field of injection molding machines, and particularly to an automobile interior molding device and process. Background Art

[0002] An automobile interior molding device refers to the general term for a series of equipment and process systems used for manufacturing and processing automobile interior decoration parts. These devices and processes act on raw materials together, and through specific molding technologies, convert the raw materials into automobile interior parts with specific shapes, structures, and functions.

[0003] Among them, the injection molding machine is the most commonly used equipment in automobile interior molding devices. Due to its high production efficiency, suitability for mass production, and ability to manufacture interior parts with complex shapes and high precision, it is widely used.

[0004] In the prior art, the injection molding machine includes a barrel, and a heating device is arranged on the barrel. The heating device heats the barrel. Then, after the plastic particles in the barrel receive the heat on the barrel, they are converted into molten plastic for subsequent injection molding work. However, during the process of the heating device heating the barrel, a considerable part of the heat is lost through the air, resulting in waste of energy and resources. Summary of the Invention

[0005] The purpose of this application is to provide an automobile interior molding device and process, which can reduce the heat loss on the barrel, thereby improving the energy utilization rate.

[0006] In the first aspect, an automobile interior molding device provided by this application adopts the following technical solutions:

[0007] Base;

[0008] An injection molding assembly, including a barrel and a screw. One end of the barrel is set as a nozzle, a feed hopper is communicated with the barrel, one end of the screw is located inside the barrel, and the other end of the screw is located outside the barrel and is connected with a rotating motor;

[0009] A mold assembly, installed on the base, and the nozzle on the barrel is communicated with the mold assembly;

[0010] A heating assembly, including multiple groups of electromagnetic coils, installed on the base, and the multiple groups of electromagnetic coils are coaxially sleeved on the barrel, and the multiple groups of electromagnetic coils do not contact the barrel;

[0011] A linkage, installed on the screw. The screw can drive the barrel to rotate reciprocally around its own axis through the linkage to cut the magnetic field generated by the electromagnetic coils. At the same time, the reciprocating rotation of the barrel drives the feed hopper on the barrel to swing reciprocally.

[0012] Optionally, the linkage member includes a connecting ring, a toggle rod, and a return spring. The connecting ring is fixedly installed on the base and coaxially located between the barrel and the screw. The toggle rod is rotatably installed on the connecting ring. A toggle block is installed on the outer peripheral wall of the screw, and the toggle block abuts against one end of the toggle rod. The return spring is installed on the connecting ring, and one end of the toggle rod close to the toggle block is fixedly connected to the return spring. A chute is provided at one end of the barrel, and a slider is arranged in the chute. The end of the toggle rod away from the screw is rotatably connected to the slider.

[0013] Optionally, an insulating and heat-insulating tube is coaxially sleeved on the outer peripheral wall of the barrel.

[0014] Optionally, a plurality of guide plates are arranged on the inner wall of the feed hopper. The plurality of guide plates are divided into two groups, and the two groups of guide plates are respectively installed on both sides inside the feed hopper. The guide plates of the two groups are staggered along the feed direction. The plurality of guide plates and the feed hopper form a continuously curved channel, increasing the moving distance of the raw materials in the feed hopper, and the raw materials in the feed hopper can enter the barrel by relying on the reciprocating swing of the feed hopper.

[0015] Optionally, air inlet holes are provided on the outer peripheral wall of the feed hopper, and a plurality of air outlet holes are provided on the inner peripheral wall of the feed hopper. One air outlet hole is arranged between two adjacent guide plates. The gas flow direction in each air outlet hole is opposite to the moving direction of the raw materials. Each air outlet hole is communicated with the air inlet hole. Heat conduction holes are provided on the insulating and heat-insulating tube, and a heat conduction hose is arranged between the heat conduction holes and the air inlet hole. The gas blown out from the air outlet holes can slow down the moving speed of the raw materials in the feed hopper and can disperse the raw materials in the feed hopper. At the same time, the swing of the feed hopper can shake the raw materials inside itself into the air, increasing the contact area between the dispersed raw materials and the hot gas ejected from the air outlet holes and accelerating the evaporation speed of the moisture in the raw materials.

[0016] Optionally, an air inlet pipe is arranged between the air inlet hole and the heat conduction hose. A driven pipe is coaxially arranged on the inner peripheral wall of the air inlet pipe. The outer peripheral wall of the driven pipe slidably abuts against the inner peripheral wall of the air inlet pipe. The driven pipe is coaxially fixedly connected with an impeller. A driving wheel is coaxially fixedly connected to the screw. A transmission belt is arranged on the outer peripheral walls of the driving wheel and the driven pipe. A through groove for inserting the transmission belt is provided on the outer peripheral wall of the air inlet pipe.

[0017] Optionally, a moisture absorption plate is arranged on the lower end surface of the guide plate.

[0018] Optionally, an installation groove for slidably inserting the moisture absorption plate is provided on the side wall of the feed hopper.

[0019] Optionally, a water storage block is arranged at the end of the moisture absorption plate located outside the feed hopper.

[0020] In a second aspect, an automotive interior molding process provided by the present application includes the following steps:

[0021] S1: Start the rotating motor and the heating component. The screw rotates, the barrel rotates reciprocally, and the barrel and the screw start to heat up;

[0022] S2: Add raw materials into the feeding hopper. The raw materials flow along the layout direction of the guiding plate. The impeller rotates, and blows the hot air on the barrel into the interior of the feeding hopper in the opposite direction of the movement of the raw materials to perform dehumidification pretreatment on the raw materials;

[0023] S4: The heated screw and barrel perform high-temperature melting on the raw materials entering the barrel;

[0024] S4: The screw moves axially, and extrudes the molten plastic from the barrel into the mold assembly;

[0025] S5: The mold is cooled to obtain a molded product.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. Through the setting of the electromagnetic coil, when the screw rotates, it cuts the magnetic field generated by the electromagnetic coil, so that the screw can generate heat energy. While the screw conveys the raw materials, it can also perform melting treatment on the plastic particles. Moreover, the screw is located inside the barrel, and the heat energy generated by it is not easily lost to the outside of the barrel, thus minimizing energy waste; in addition, the screw drives the barrel to rotate reciprocally through the linkage, so the barrel also cuts the magnetic field and generates heat. Its cooperation with the heat energy generated by the screw can melt the plastic particles more thoroughly, thus minimizing the occurrence of blockage of the nozzle by the molten plastic or failure of product molding;

[0028] 2. An insulating and heat-insulating pipe is coaxially sleeved on the outer peripheral wall of the barrel, which can further prevent the heat on the barrel from dissipating through the air, thereby further improving the energy utilization rate;

[0029] 3. The setting of the guiding plate increases the moving distance of the raw materials, thus minimizing the occurrence of blockage of the feeding hopper caused by the too-fast descent of the raw materials; at the same time, when the barrel rotates reciprocally, it can drive the feeding hopper to swing reciprocally. Under the swing of the feeding hopper, the raw materials can descend step by step along the layers of guiding plates in an orderly manner, thereby further avoiding the occurrence of hopper blockage. At the same time, the orderly descent of the raw materials is due to the swing of the feeding hopper, and the swing of the feeding hopper is driven by the screw, the linkage and the barrel, and finally it still depends on the driving of the rotating motor, without relying on an additional driving source. Compared with the prior art, it has a more energy-saving effect;

[0030] 4. The settings of the air outlet, air inlet, and heat conduction tube enable hot air to be ejected from the air outlet. The hot air can dry the plastic particles in the feed hopper to remove the moisture that may exist in the plastic particles, thereby minimizing the entry of moisture carried by the plastic particles into the mold assembly and preventing the formation of bubbles, thus improving the production quality of the product.

[0031] 5. The flow direction of the hot air ejected from the air outlet is opposite to the flow direction of the plastic particles. It can slow down the flow rate of the raw materials in the feed hopper, thereby increasing the residence time of the raw materials in the feed hopper, further increasing the baking time of the hot air on the raw materials, and improving the drying effect of the hot air on the raw materials. Additionally, the hot air ejected from the air outlet can blow the raw materials into the air. At the same time, the feed hopper is in a swinging state, which can also shake the raw materials into the air. The combined use of the hot air and the feed hopper can keep the raw materials in the feed hopper in the air and more dispersed, thereby increasing the contact area between the raw materials and the air and further improving the drying effect of the hot air on the raw materials. Description of the Drawings

[0032] Figure 1 is the overall structural schematic diagram of Embodiment 1 of the present application;

[0033] Figure 2 is Figure 1 the partial enlarged schematic diagram of part A in

[0034] Figure 3 is Figure 1 the partial enlarged schematic diagram of part B in

[0035] Figure 4 is the structural schematic diagram of the feed hopper in Embodiment 1 of the present application;

[0036] Figure 5 is the structural schematic diagram of the air guide channel in Embodiment 1 of the present application;

[0037] Figure 6 is the structural schematic diagram of the deflector in Embodiment 1 of the present application;

[0038] Figure 7 is the structural schematic diagram of the driven tube in Embodiment 1 of the present application;

[0039] Figure 8 is the structural schematic diagram of the intake pipe in Embodiment 1 of the present application;

[0040] Figure 9 is Figure 8 the partial enlarged schematic diagram of part C in

[0041] In the figure, 1, base; 2, injection molding component; 21, barrel; 22, screw; 23, nozzle; 24, rotating motor; 25, insulating heat insulation tube; 251, heat conduction hole; 3, mold assembly; 31, upper mold; 32, lower mold; 4, heating component; 41, support rod; 42, electromagnetic coil; 5, linkage; 51, connecting ring; 52, toggle rod; 53, reset spring; 54, fixing rod; 55, toggle block; 56, slider; 6, feed funnel; 61, guide plate; 62, air inlet; 63, air outlet; 64, air guide channel; 65, heat conduction tube; 66, air inlet pipe; 661, driven pipe; 662, driving wheel; 663, transmission belt; 664, impeller; 665, through groove; 67, installation groove; 7, moisture absorption plate; 71, water storage block. DETAILED DESCRIPTION

[0042] The following is combined with Figures 1-9 , further details of this application are given. Example 1

[0043] An automobile interior molding device, referring to Figure 1 and Figure 2 , including a base 1, an injection molding component 2, a mold component 3 and a heating component 4.

[0044] The base 1 in this embodiment is fixedly installed on the ground, and a shell (not shown in the figure) is fixedly connected to the top of the base 1 for protecting the components on the base 1.

[0045] The injection molding assembly 2 includes a barrel 21 and a screw 22 .

[0046] Two supporting columns are provided on the base 1, and the barrel 21 is rotatably mounted on the two supporting columns and arranged along the barrel 21 in the horizontal direction. The two supporting columns are located respectively near the two ends of the barrel 21. A nozzle 23 is coaxially arranged at one end of the barrel 21. The nozzle 23 is fixedly mounted on one of the supporting columns, and one end of the barrel 21 is inserted into the nozzle 23. A sealed bearing (not shown in the figure) is provided between the outer circumferential wall of the barrel 21 and the inner circumferential wall of the nozzle 23 to prevent the molten plastic from flowing out of the connecting gap between the barrel 21 and the nozzle 23 as much as possible.

[0047] A feeding funnel 6 is provided above the barrel 21, and the feeding funnel 6 is connected to the side wall of the barrel 21. The screw 22 is coaxially located inside the barrel 21, and the screw 22 extends to the outside of the barrel 21 away from one end, and the end of the screw 22 located outside the barrel 21 is coaxially fixedly connected to a rotating motor 24. A linkage part 5 is provided between the screw 22 and the barrel 21, and the linkage part 5 can drive the barrel 21 to reciprocate around its own axis.

[0048] The mold assembly 3 includes an upper mold 31 and a lower mold 32. The upper mold 31 is fixedly mounted on the base 1 and connected to the nozzle 23. The lower mold 32 is slidably mounted on the base 1. The lower mold 32 can move in a direction close to or away from the upper mold 31. A driving assembly (not shown in the figure) for driving the lower mold 32 to move is provided on the base 1.

[0049] The heating component 4 includes multiple groups of electromagnetic coils 42, which are coaxially sleeved on the barrel 21 and do not contact the barrel 21. In this embodiment, the electromagnetic coils 42 are preferably three groups, and the three groups of electromagnetic coils 42 are evenly spaced along their own axial direction. Three support rods 41 are provided on the base 1, and the three support rods 41 correspond to the three groups of electromagnetic coils 42 one by one. The support rods 41 are fixedly installed on the base 1 in the vertical direction, and the end of the support rod 41 away from the base 1 is fixedly connected to the electromagnetic coil 42.

[0050] When the rotating motor 24 is started, the rotating motor 24 drives the screw 22 to rotate. At the same time, the raw materials in the feed hopper 6 enter the barrel 21. The raw materials entering the barrel 21 move in the direction close to the nozzle 23 under the drive of the screw 22. At the same time, the screw 22 cuts the magnetic field generated by the electromagnetic coil 42 when rotating. Therefore, the temperature of the screw 22 increases sharply due to the current generated, so that the principle in the barrel 21 can be heated and melted. Since the screw 22 is located inside the barrel 21, the heat generated by the screw 22 is not easily dissipated to the outside of the barrel 21, thereby minimizing the heat generated by the screw 22 from being dissipated into the air, resulting in energy waste, thereby improving energy utilization.

[0051] In addition, the screw 22 in this embodiment can drive the barrel 21 to reciprocate around its own axis through the linkage 5. Therefore, the barrel 21 can also cut the magnetic field generated by the electromagnetic coil 42, thereby generating heat. The heat generated by the barrel 21 can further heat and melt the raw materials inside the barrel 21, so that the raw materials in the barrel 21 are melted more thoroughly, thereby improving the efficiency and effect of the heating component 4 in this embodiment on the melting of the raw materials, and avoiding the unmelted raw materials from clogging the nozzle 23 or entering the mold cavity in the mold, resulting in a decrease in product quality; at the same time, in this embodiment, an insulating and heat-insulating tube 25 is coaxially sleeved on the outer peripheral wall of the barrel 21. The insulating and heat-insulating tube 25 in this embodiment is made of alumina, which has the properties of insulation, high temperature resistance and heat insulation. Therefore, the insulating and heat-insulating tube 25 made of alumina can well wrap the heat emitted by the barrel 21, thereby avoiding the heat on the barrel 21 from being lost to the air as much as possible, thereby further improving the energy utilization rate.

[0052] The linkage member 5 includes a connecting ring 51 , a toggle rod 52 and a return spring 53 .

[0053] The connecting ring 51 is coaxially sleeved on the screw 22, and the connecting ring 51 is located between the screw 22 and the barrel 21. A fixing rod 54 is arranged between the connecting ring 51 and the base 1. The fixing rod 54 in this embodiment is L-shaped as a whole. Sealed bearings (not shown in the figure) are arranged between the connecting ring 51 and the barrel 21, and between the connecting tube and the screw 22. The toggle rod 52 is rotatably mounted on the end surface of the connecting ring 51 close to the rotating motor 24. A toggle block 55 is fixedly connected to the outer peripheral wall of the screw 22. The toggle block 55 abuts against one end of the toggle rod 52 close to the screw 22. One end of the return spring 53 is fixedly connected to the end surface of the connecting ring 51, and the other end of the return spring 53 is fixedly connected to the toggle rod 52. A slide groove is provided at one end of the barrel 21 close to the rotating motor 24, and a sliding member is arranged in the slide groove. The end of the toggle rod 52 away from the screw 22 is rotatably connected to the slider 56.

[0054] When the screw 22 rotates, the shift block 55 on the screw 22 will abut against the shift rod 52 and squeeze the shift rod 52. The shift rod 52 is pressed and rotates. The shift rod 52 rotates, the return spring 53 is in a compressed state, and the end of the wave rod close to the slider 56 applies pressure to the groove wall of the slide groove through the slider 56, thereby driving the slider 56 to slide and driving the barrel 21 to rotate around its own axis; when the shift block 55 continues to rotate and separates from the shift rod 52, the return spring 53 is reset, thereby driving the shift rod 52 to rotate in the opposite direction, so that the shift rod 52 drives the barrel 21 to reverse through the slider 56, and the above movement is repeated. Therefore, the continuous rotation of the screw 22 can drive the barrel 21 to reciprocate in a fixed period.

[0055] Among them, refer to Figure 4 and Figure 5 A plurality of guide plates are arranged on the inner wall of the feed hopper 6 .

[0056] The feed funnel 6 in this embodiment is arranged in a column shape, and two sides of the feed end are arranged to be relatively parallel, and the other two sides are arranged along inclined surfaces close to each other. A plurality of guide plates are divided into two groups, and the two groups of guide plates are respectively installed on both sides of the feed funnel 6, and are respectively fixedly connected to the two inclined surfaces. The two sides of the guide plates adjacent to the feed funnel 6 are respectively abutted against the side edges of the feed funnel 6 adjacent to the inclined surfaces. The transverse length of each guide plate is different, and the length of each guide plate decreases from top to bottom in sequence. The two groups of guide plates are staggered along the feeding direction, and the plurality of guide plates and the feed funnel 6 together form a continuously curved channel (combined with Figure 6 ).

[0057] When the raw materials enter the feeding hopper 6 from the feeding end of the feeding hopper 6, the raw materials slide from the upper end surface of each guide plate to the lower end surface of the next guide plate in sequence from top to bottom, and finally fall into the barrel 21. The guide plates increase the moving distance of the raw materials, thus minimizing the occurrence of the situation where the raw materials descend too quickly, leading to the blockage of the feeding hopper 6. At the same time, while the barrel 21 rotates reciprocally, it can drive the feeding hopper 6 to swing reciprocally. Under the swing of the feeding hopper 6, the raw materials can descend step by step along the layers of the diversion plates 61 in an orderly manner, thus further avoiding the occurrence of the hopper blockage situation.

[0058] In addition, generally, a motor and a feeding screw 22 are installed in the feeding hopper 6 in the prior art. The motor drives the screw 22 to rotate, thereby realizing the orderly descent of the raw materials. However, in this embodiment, the orderly descent of the raw materials is due to the swing of the feeding hopper 6. When the feeding hopper 6 swings, the inner wall of the feeding hopper 6 will exert a thrust on the raw materials inside the hopper. At the same time, when the feeding hopper 6 swings, one side of the guide plates inside the feeding hopper 6 will be in a high position, and the guide plates on the other side will be in a low position. Therefore, under the thrust of the feeding hopper 6 and the gravity of the raw materials themselves, the raw materials will orderly fall from one guide plate to the next guide plate. Therefore, the orderly descent of the raw materials in this embodiment is driven by the screw 22, the linkage member 5, and the barrel 21, and finally it is still driven by the rotation of the motor 24. It does not rely on an additional driving source, and compared with the prior art, it has a more energy-saving effect.

[0059] Secondly, an air inlet hole 62 is provided on the outer peripheral wall of the feeding hopper 6, and a plurality of air outlet holes 63 are provided on the inner peripheral wall of the feeding hopper 6.

[0060] In this embodiment, there is one air inlet hole 62, and one air outlet hole 63 is provided between two adjacent guide plates in the vertical direction. A plurality of air guiding channels 64 are provided inside the side wall of the feeding hopper 6, and the plurality of air guiding channels 64 are in one-to-one communication with the plurality of air outlet holes 63. A heat conduction hole 251 is provided on the insulating and heat insulating pipe 25, and a heat conduction pipe 65 is provided between the heat conduction hole 251 and the air inlet hole 62. The flowing direction of the gas ejected from the air outlet hole 63 is opposite to the moving direction of the raw materials.

[0061] When both the barrel 21 and the screw 22 are heated, the temperature of the gas in the barrel 21 is relatively high, while the temperature of the gas in the feed funnel 6 is relatively low. The gas with higher temperature will flow in the direction close to the gas with lower temperature, so that the hot air in the barrel 21 will flow through the heat conduction holes 251, the heat conduction pipe 65, the air inlet holes 62 and the air guide channels 64, and finally be ejected from the air outlet holes 63. The hot air ejected from the air outlet holes 63 can dry the raw materials in the feed funnel 6. The raw materials after drying contain less water or no water. Therefore, the possibility of bubbles in the melted raw materials is smaller, and the probability of bubbles or indentations in the molten raw materials in the mold cavity during molding is also lower, thereby reducing the overall scrap rate of product production.

[0062] Reference Figure 3 and Figure 7 In order to further improve the drying effect of hot air on the raw materials, an air inlet pipe 66 is arranged between the air inlet hole 62 and the heat conducting pipe 65. The air inlet pipe 66 is fixedly connected to the outer peripheral wall of the feeding funnel 6. The air inlet pipe 66 in this embodiment includes a first part and a second part. The first part and the second part are coaxially arranged and do not abut each other. The first part and the second part are connected by a plurality of connecting columns. The plurality of connecting columns are evenly spaced around the axis of the air inlet pipe 66. Through grooves 665 are formed between the plurality of connecting columns. A driven pipe 661 is provided between the first and second parts of the air pipe 66. The outer peripheral wall of the driven pipe 661 is in sliding contact with the outer peripheral wall of the air intake pipe 66. A portion of the driven pipe 661 is located in the first portion of the air intake pipe 66, and another portion of the driven pipe 661 is located in the second portion of the air intake pipe 66. A clamping ring is also provided on the outer peripheral wall of the driven pipe 661, and a clamping groove is also provided on the inner peripheral wall of the air intake pipe 66. The provision of the clamping groove and the clamping ring can limit the axial movement of the driven pipe 661 (combined with Figure 8 and Figure 9 ).

[0063] A driving wheel 662 is coaxially fixedly connected to the outer peripheral wall of the screw rod 22, and a transmission belt 663 is arranged between the driving wheel 662 and the driven tube 661. The transmission belt 663 passes through the through groove 665 between the connecting columns. At the same time, a yield groove is opened on the outer peripheral wall of the driven tube 661 that contacts the transmission belt 663. The transmission belt 663 is located in the yield groove of the driven tube 661 to avoid as much as possible the situation that the transmission belt 663 is squeezed and cannot rotate due to the small space between the driven tube 661 and the connecting column; an impeller 664 is coaxially fixedly connected inside the driven tube 661.

[0064] When the rotating motor 24 drives the screw rod 22 to rotate, the screw rod 22 drives the barrel 21 to rotate reciprocally through the linkage member 5, thereby driving the feed hopper 6 to swing reciprocally. At the same time, the screw rod 22 drives the impeller 664 to rotate through the driving wheel 662, the transmission belt 663 and the driven pipe 661. The rotation of the impeller 664 can accelerate the hot air in the barrel 21 to enter the feed hopper 6, so that more hot air enters the feed hopper 6 per unit time, and thus the drying effect of the raw materials in the feed hopper 6 is better.

[0065] At the same time, the rotation of the impeller 664 can increase the speed of gas flow. When the gas flow speed increases, wind is formed, which can accelerate the gas flow speed on the outer surface of the raw materials, thereby further improving the drying effect on the surface of the raw materials. In addition, the flow direction of the gas ejected from the air outlet hole 63 in this embodiment is opposite to the moving direction of the raw materials in the feed hopper 6. Therefore, the gas ejected from the air outlet hole 63 can slow down the moving speed of the raw materials in the feed hopper 6, thereby increasing the time of the raw materials in the feed hopper 6. Therefore, the time for the raw materials to be dried by the hot air in the feed hopper 6 is relatively longer, and thus the drying effect of the raw materials is further improved.

[0066] Furthermore, when the rotating motor 24 rotates, it drives the screw rod 22 to rotate. At the same time, the screw rod 22 drives the barrel 21 to rotate reciprocally through the linkage member 5. The barrel 21 and the screw rod 22 generate heat due to cutting the magnetic field. After the air inside the barrel 21 is completely heated by the barrel 21 and the screw rod 22, the raw materials are poured into the feed hopper 6. Therefore, the hot air in the barrel 21 can flow from the heat-conducting hose, the air inlet hole 62 and the air guide pipe to the air outlet, and be ejected from the air outlet into the feed hopper 6, thereby drying the raw materials in the feed hopper 6. When the rotating motor 24 in this embodiment rotates, it will drive the feed hopper 6 to swing reciprocally through the screw rod 22, the linkage member 5 and the barrel 21. Therefore, during the movement of the raw materials in the feed hopper 6, due to the swing of the feed hopper 6, the raw materials are in a relatively bumpy state. The raw materials in the relatively bumpy state are relatively scattered in the air. And since the flow direction of the hot air ejected from the air outlet hole 63 is opposite to the moving direction of the raw materials in the feed hopper 6, the hot air can blow the raw materials in the feed hopper 6 more scattered, so that the raw materials in the feed hopper 6 are more scattered. Therefore, the contact area of each raw material in the feed hopper 6 with the air is larger, and thus the contact area between the hot air ejected from the air outlet hole 63 and each raw material is also larger, and further improves the drying effect of the raw materials as a whole.

[0067] It should be noted that in this embodiment, the driven tube 661 and the transmission belt 663 will also swing with the swing of the feed funnel 6, and the transmission belt 663 in this embodiment is a rubber belt. Even if the transmission belt 663 occasionally slips due to the swing of the feed funnel 6, it can still operate stably as a whole, and the impeller 664 can also rotate continuously.

[0068] Finally, refer to Figure 6 In this embodiment, a moisture absorbing plate 7 is provided on the lower end surface of each guide plate. Since the hot air is sprayed out from the air outlet 63 to dry the raw material, the water vapor evaporated by the heat floats upward, and the raw material flows from top to bottom. The raw material at the top can easily absorb the moisture discharged from the raw material at the bottom. Therefore, a moisture absorbing plate 7 is provided on the lower end surface of the guide plate. The moisture absorbing plate 7 in this embodiment is made of activated carbon. Activated carbon is a porous carbon-containing material with high adsorption capacity and can adsorb water vapor in the air. Since the moving channel of the raw material in the feeding funnel 6 in this embodiment is curved, the heated water vapor will first hit the lower end surface of the guide plate during the upward movement. Therefore, the moisture absorbing plate 7 on the lower end surface of the guide plate will absorb the water vapor in advance to prevent the water vapor from entering the raw material again.

[0069] In order to facilitate the installation of the desiccant plate 7, a mounting groove 67 for the desiccant plate 7 to slide into is provided on the side wall of the feed funnel 6. In the present embodiment, a snap-in component (not shown in the figure) is provided between the material guide plate and the desiccant plate 7. The snap-in component can realize the snap-in and detachable connection between the desiccant plate 7 and the material guide plate, thereby further improving the convenience of the installation of the desiccant plate 7.

[0070] In addition, a water storage block 71 is provided at one end of the desiccant plate 7 located outside the feed funnel 6. The water storage block 71 in this embodiment can be made of materials such as sponge. The setting of the water storage block 71 can absorb and store the moisture in the desiccant plate 7, thereby avoiding as much as possible the situation where the desiccant plate 7 absorbs too much moisture and reaches its own saturation, resulting in excess moisture being re-absorbed by the raw materials; at the same time, due to the setting of the water storage block 71, when the desiccant plate 7 reaches saturation, there is no need to replace the desiccant plate 7 inside the feed funnel 6, only the water storage block 71 outside the feed funnel 6 needs to be replaced, which is more convenient for the staff to operate. Example 2

[0071] A car interior molding process, based on the above-mentioned car interior molding device, comprises the following steps:

[0072] S1: Start the rotating motor 24 and energize the electromagnetic coil 42, the screw 22 rotates, and the screw 22 drives the barrel 21 to reciprocate through the linkage 5, and the barrel 21 and the screw 22 begin to heat up;

[0073] S2: Add raw materials into the feeding funnel 6. The raw materials flow along the layout direction of the material guiding plate. The impeller 664 rotates, and blows the hot air on the barrel 21 into the inside of the feeding funnel 6 in the opposite direction of the movement of the raw materials to perform dehumidification pretreatment on the raw materials;

[0074] S4: The heating screw 22 and the barrel 21 perform high-temperature melting on the raw materials entering the barrel 21;

[0075] S4: The screw 22 continues to rotate, and pushes the molten plastic from the barrel 21 into the mold assembly 3;

[0076] S5: The mold is cooled to obtain a molded product.

[0077] Through this process, the raw materials can be dried, thereby reducing the moisture in the raw materials. Therefore, the probability of bubbles in the obtained product will be smaller, thus improving the production quality of the product.

[0078] The embodiments of this specific implementation manner are all preferred embodiments of this application, and do not limit the protection scope of this application accordingly. The same components are denoted by the same reference numerals. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. An automobile interior molding device, characterized in that: include: Base (1); An injection molding component (2) comprises a barrel (21) and a screw (22), one end of the barrel (21) being provided with a nozzle (23), the barrel (21) being connected to a feeding funnel (6), one end of the screw (22) being located inside the barrel (21), and one end of the screw (22) being located outside the barrel (21) and connected to a rotating motor (24); A mold assembly (3) is mounted on the base (1), and a nozzle (23) on the barrel (21) is connected to the mold assembly (3); The heating component (4) comprises a plurality of sets of electromagnetic coils (42), which are mounted on the base (1), and the plurality of sets of electromagnetic coils (42) are coaxially sleeved on the barrel (21), and the plurality of sets of electromagnetic coils (42) do not contact the barrel (21); A linkage member (5) is mounted on the screw (22), and the screw (22) can drive the barrel (21) to reciprocate around its own axis through the linkage member (5) to cut the magnetic field generated by the electromagnetic coil (42). At the same time, the reciprocating rotation of the barrel (21) drives the feed funnel (6) on the barrel (21) to reciprocate; The linkage member (5) comprises a connecting ring (51), a toggle rod (52) and a return spring (53). The connecting ring (51) is fixedly mounted on the base (1) and is coaxially located between the barrel (21) and the screw rod (22). The toggle rod (52) is rotatably mounted on the connecting ring (51). A toggle block (55) is mounted on the outer peripheral wall of the screw rod (22). The toggle block (55) abuts against one end of the toggle rod (52). The return spring (53) is mounted on the connecting ring (51). One end of the toggle rod (52) close to the toggle block (55) is fixedly connected to the return spring (53). A slide groove is provided at one end of the barrel (21). A slider (56) is provided in the slide groove. One end of the toggle rod (52) away from the screw rod (22) is rotatably connected to the slider (56).

2. The automotive interior molding device according to claim 1, characterized in that: An insulating heat-insulating tube (25) is coaxially sleeved on the outer peripheral wall of the barrel (21).

3. The automobile interior molding device according to claim 2, characterized in that: A plurality of guide plates are arranged on the inner wall of the feed hopper (6), and the plurality of guide plates are divided into two groups. The two groups of guide plates are respectively installed on both sides of the feed hopper (6), and the two groups of guide plates are staggered along the feeding direction. The plurality of guide plates and the feed hopper (6) form a continuously curved channel, thereby increasing the moving distance of the raw materials in the feed hopper (6), and the raw materials in the feed hopper (6) enter the barrel (21) by virtue of the reciprocating swing of the feed hopper (6).

4. The automobile interior molding device according to claim 3, characterized in that: An air inlet (62) is provided on the outer peripheral wall of the feed funnel (6), and a plurality of air outlets (63) are provided on the inner peripheral wall of the feed funnel (6). An air outlet (63) is provided between two adjacent guide plates. The gas flow direction in each of the air outlets (63) is opposite to the moving direction of the raw materials. Each of the air outlets (63) is connected to the air inlet (62). A heat conduction hole (251) is provided on the insulating heat-insulating tube (25). A heat conduction hose is provided between the heat conduction hole (251) and the air inlet (62). The gas blown out from the air outlet (63) can slow down the moving speed of the raw materials in the feed funnel (6) and can blow the raw materials in the feed funnel (6). At the same time, the swinging of the feed funnel (6) can shake the raw materials inside the feed funnel into the air. The contact area between the dispersed raw materials and the hot air ejected from the air outlet (63) is increased, thereby accelerating the evaporation speed of the water in the raw materials.

5. The automobile interior molding device according to claim 4, characterized in that: An air intake pipe (66) is arranged between the air intake hole (62) and the heat-conducting hose, a driven pipe (661) is coaxially arranged on the inner peripheral wall of the air intake pipe (66), the outer peripheral wall of the driven pipe (661) is slidably abutted against the inner peripheral wall of the air intake pipe (66), the driven pipe (661) is coaxially fixedly connected with an impeller (664), a driving wheel (662) is coaxially fixedly connected to the screw rod (22), a transmission belt (663) is arranged on the outer peripheral walls of the driving wheel (662) and the driven pipe (661), and a through groove (665) for inserting the transmission belt (663) is opened on the outer peripheral wall of the air intake pipe (66).

6. The automobile interior molding device according to any one of claims 3 to 5, characterized in that: A moisture absorbing plate (7) is provided on the lower end surface of the material guide plate.

7. The automobile interior molding device according to claim 6, characterized in that: The side wall of the feed funnel (6) is provided with a mounting groove (67) for the moisture absorption plate (7) to be slidably inserted into.

8. The automobile interior trim molding device according to claim 7, characterized in that: A water storage block (71) is provided at one end of the moisture absorbing plate (7) located outside the feed funnel (6).

9. A process for molding an automobile interior decoration, based on an automobile interior decoration molding device according to any one of claims 1 to 8, comprising the following steps: S1: starting the rotating motor (24) and the heating component (4), the screw (22) rotates, the barrel (21) reciprocates, and the barrel (21) and the screw (22) begin to heat up; S2: adding raw materials into the feed hopper (6), the raw materials flow along the direction in which the guide plates are arranged, and the impeller (664) rotates to blow the hot air on the barrel (21) into the feed hopper (6) in the opposite direction of the movement of the raw materials, thereby performing dehumidification pretreatment on the raw materials; S4: The heated screw (22) and the barrel (21) melt the material entering the barrel (21) at high temperature; S4: the screw (22) moves axially to extrude the molten plastic from the barrel (21) into the mold assembly (3); S5: The mold is cooled to obtain a molded product.

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