Injection molding equipment and process for automobile parts

Abstract

The invention relates to the technical field of automobile part production and processing, and particularly discloses an automobile part injection molding device and process, the automobile part injection molding device comprises: a feeding assembly comprising a hopper, a charging barrel communicating with the bottom of the hopper, a screw rotatably connected in the charging barrel, and a rotation driving member for driving the screw to rotate; the heating assembly comprises a plurality of electric heating cylinders arranged at the peripheral end of the charging barrel in a sleeving manner; the mold assembly comprises a fixed mold connected with the end part of the charging barrel, a movable mold matched with the fixed mold and a first linear driving piece for driving the movable mold to move, and a material injection channel for communicating the charging barrel with the mold cavity is arranged in the fixed mold; the interior of the screw rod is hollow, and the adjusting assembly comprises a sliding rod which is arranged in the screw rod and can stretch out of the screw rod to block the material injection channel and a second linear driving part for driving the sliding rod to move. And the temperature of the molten plastic remained in the material injection channel is reduced, so that the next molding effect is influenced.

Description

Technical Field

[0001] The present application relates to the technical field of automobile parts production and processing, and specifically discloses an automobile parts injection molding device and process. Background Art

[0002] In the production and processing of automotive parts, injection molding is a common and practical processing method, which is mainly used to produce plastic parts for automobiles, such as intake manifolds, oil filters, radiator grilles, etc. The principle of injection molding is to heat the plastic raw materials to a molten state, and then inject them into the mold cavity of a closed mold through the thrust of a plunger or screw, and obtain the finished product after cooling and solidification.

[0003] Taking a horizontal injection molding machine as an example, plastic particles are usually added from a hopper into the barrel of the injection molding machine. When the screw rotates, the plastic is pushed forward and heated at the same time to reach a viscosity suitable for injection, and the molten plastic is injected into the mold cavity. A certain pressure is maintained to ensure that the plastic fills the mold cavity and is compacted. After cooling, the molded product is removed from the mold. In order to quickly cool the molten plastic in the mold cavity, a plurality of cooling pipes for cooling the environment in the mold cavity are usually configured in the mold. While the cooling pipe cools the mold cavity, it also has a cooling effect on the injection channel between the barrel and the mold cavity, causing the temperature of the molten plastic remaining in the injection channel to decrease and affect the next molding effect. In view of this, the inventor provides an automotive parts injection molding equipment and process to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that in the production process of a traditional horizontal injection molding machine, the cooling pipe cools the mold cavity while also cooling the injection channel between the barrel and the mold cavity, causing the temperature of the molten plastic remaining in the injection channel to decrease, thereby affecting the next molding effect.

[0005] In order to achieve the above-mentioned object, the basic scheme of the present invention provides an automobile parts injection molding equipment and process, comprising:

[0006] A feeding assembly includes a hopper, a barrel connected to the bottom of the hopper, a screw rotatably connected to the barrel, and a rotary drive member for driving the screw to rotate;

[0007] A heating assembly, comprising a plurality of electric heating cylinders sleeved on the peripheral ends of the barrel;

[0008] A mold assembly, comprising a fixed mold connected to the end of the barrel, a movable mold adapted to the fixed mold, and a first linear driving member driving the movable mold to move, wherein the fixed mold and the movable mold are closed to form a mold cavity, and an injection channel for connecting the barrel and the mold cavity is provided in the fixed mold;

[0009] The adjusting component is hollow inside the screw rod, and the adjusting component comprises a sliding rod which is arranged inside the screw rod and can extend out of the screw rod to block the injection channel, and a second linear driving member which drives the sliding rod to move.

[0010] The principles and effects of this basic solution are:

[0011] Compared with the prior art, the present invention sets the interior of the screw to be hollow and uses a second linear drive member to drive the sliding rod to move, so that the sliding rod can extend out of the screw or extend into the screw. When the sliding rod is located inside the screw, the sliding rod does not affect the screw extruding the molten plastic into the mold cavity. When the sliding rod extends out of the screw, the molten plastic in the injection channel can be pushed into the mold cavity and the mold cavity can be kept sealed, thereby preventing the molten plastic from entering the injection channel during the cooling process of the mold cavity. This solves the problem that in the production process of traditional horizontal injection molding machines, the cooling pipe cools the mold cavity while also causing a cooling effect on the injection channel between the barrel and the mold cavity, resulting in a decrease in the temperature of the molten plastic remaining in the injection channel and affecting the next molding effect.

[0012] Furthermore, the outer wall of the sliding rod is spline-connected to the inner wall of one end of the screw, and the end of the sliding rod away from the injection channel is spline-connected to the output shaft of the rotary drive, and a slide seat driven by the second linear drive is provided. Through this arrangement, the sliding rod serves as a transmission member for power transmission between the rotary drive and the screw, and at the same time provides space for sliding between the sliding rod and the screw, so as to improve the functionality of the sliding rod and improve the compactness of the connection and transmission between the rotary drive, the sliding rod and the screw.

[0013] Furthermore, the end of the screw away from the injection channel is provided with a connecting sleeve that is rotatably sealed with the inner wall of the barrel, the inner wall of the connecting sleeve is provided with an inner spline groove, and the outer wall of the sliding rod is provided with an outer spline of the sliding rod that matches the inner spline groove. This arrangement facilitates the connection and cooperation between the screw and the sliding rod, and the connecting sleeve ensures the sealing of the end of the barrel, preventing plastic particles from flowing out of the end of the barrel.

[0014] Furthermore, a conducting cavity is provided in the sliding rod, one end of the sliding rod is provided with a first conducting port through which a screw rod can be extended and communicated with the conducting cavity, the other end of the sliding rod is provided with a screw rod extended and a second conducting port communicated with the conducting cavity is provided, and the second conducting port is communicated with the first conduit. With this arrangement, when it is necessary to clean the inside of the barrel, the cleaning liquid can be discharged from the first conducting port, the conducting cavity, the second conducting port and the first conduit, avoiding the traditional process of disassembling the barrel and the fixed mold to clean the screw rod, thereby making it more convenient to clean the inside of the barrel.

[0015] Furthermore, the adjustment component also includes:

[0016] A conversion box, wherein the sliding rod passes through the conversion box;

[0017] A conversion cylinder is arranged in the conversion box and sleeved on the outer wall of the sliding rod. Both ends of the conversion cylinder are sealed with the sliding rod and the inner wall of the conversion cylinder is provided with a conversion groove connected with the second conducting port. The first conduit and the conversion groove are arranged on the conversion box and connected with the conversion groove.

[0018] With this arrangement, the sliding rod can maintain connection with the first conduit during the state switching process such as rotation and sliding, thereby preventing the cleaning liquid from leaking and contaminating other equipment.

[0019] Furthermore, the adjustment component also includes:

[0020] A material guide pipe provided between the hopper and the barrel;

[0021] An adjusting shaft driven by the second linear drive member and slidably connected to the material guide tube, the adjusting shaft is provided with a material guide groove that can conduct the material guide tube, and a cleaning channel is also provided in the adjusting shaft, one end of the cleaning channel is connected to the bottom of the side wall of the adjusting shaft, and the other end of the conducting channel is connected to the second conduit.

[0022] Since the plastic particles in the hopper are fixed, they are not very sticky and are easy to clean. However, the materials in the barrel and on the screw are heated by the electric heating tube and are in a molten state. They are very sticky and need to be cleaned with plasticizers and other cleaning agents. However, using cleaning agents to clean the hopper not only increases the cost, but also increases the drying process, resulting in an increase in the actual cleaning time of the hopper. The above-mentioned arrangement can effectively avoid this problem, so that during the normal injection molding process, the material guide trough connects the material guide tube for feeding, and during the cleaning process of the barrel, the cleaning channel is connected to the barrel, so that the cleaning agent directly enters the barrel for cleaning.

[0023] Furthermore, the side wall of the material guide pipe is also provided with a sleeve, and the adjustment shaft is slidably connected in the sleeve. The sleeve not only plays a role of limiting and guiding the sliding of the adjustment shaft, but also plays a role of protecting the material guide groove and the cleaning channel.

[0024] Furthermore, when the first conducting port is located inside the screw, the material guide groove conducts the material guide tube, and when the first conducting port extends out of the screw, the top of the side wall of the adjustment shaft is sealed and connected to the material guide tube and the cleaning channel is connected to the material guide tube. In a normal injection molding process, when the material guide groove conducts the material guide tube for feeding, the material flows along the injection molding channel, and in the process of cleaning the barrel, the cleaning channel is connected to the barrel, so that the cleaning agent directly enters the barrel for cleaning and is discharged from the conducting cavity and the first conduit.

[0025] Based on the same inventive concept, the present invention provides an automobile parts injection molding process, including using the above-mentioned automobile parts injection molding equipment to perform injection molding in the automobile parts production process, the steps are as follows:

[0026] Step S1, passing the plastic granule raw material into the hopper, and the plastic granule raw material enters the barrel through the guide trough;

[0027] Step S2, the rotating driving member drives the screw to rotate, the screw extrude the plastic granule raw material and push the plastic granule raw material to move along the barrel, and the electric heating barrel heats the plastic granule raw material in the barrel to form molten plastic;

[0028] Step S3, the molten plastic enters the injection mold cavity from the injection channel under the push of the screw, and the second linear drive member drives the sliding rod to extend the screw to push the molten plastic in the injection channel into the injection mold cavity, and the injection mold cavity is blocked;

[0029] Step S4, after the molten plastic in the injection mold cavity cools down, the first linear drive member drives the mold to move and take out the molded automobile parts;

[0030] Step S5, the first linear drive member drives the movable mold to move in the opposite direction, so that the fixed mold and the movable mold are closed to form a mold cavity, and the second linear drive member drives the sliding rod to move in the opposite direction, so that the end of the sliding rod is flush with the end of the screw.

[0031] Compared with the prior art, the present method sets the interior of the screw to be hollow, and uses the second linear drive member to drive the sliding rod to move, so that the sliding rod can extend out of the screw or extend into the interior of the screw. When the sliding rod is located inside the screw, the sliding rod does not affect the screw in squeezing the molten plastic into the mold cavity. When the sliding rod extends out of the screw, the molten plastic in the injection channel can be pushed into the mold cavity and the mold cavity can be kept sealed, thereby preventing the molten plastic from entering the injection channel during the cooling process of the mold cavity. This solves the problem that in the production process of the traditional horizontal injection molding machine, the cooling pipe cools the mold cavity while also causing a cooling effect on the injection channel between the barrel and the mold cavity, causing the temperature of the molten plastic remaining in the injection channel to decrease, thereby affecting the next molding effect.

[0032] Furthermore, when performing split injection molding, after the injection molding of the previous plastic raw material is completed, the second linear drive member drives the sliding rod to extend out of the screw, so that the first conducting port extends out of the interior of the screw, and at the same time drives the cleaning channel to communicate with the material guide pipe, and the second conduit supplies high-pressure airflow or high-pressure cleaning agent, which flows along the material guide pipe, the barrel, and the conducting cavity and flows out from the first conduit. In this process, the electric heating tube keeps heating the barrel, so as to conveniently clean the molten plastic adhering to the barrel and the screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0034] Figure 1 An axonometric diagram of an automobile parts injection molding device proposed in an embodiment of the present application is shown;

[0035] Figure 2 A partial structural schematic diagram of an automobile parts injection molding device proposed in an embodiment of the present application is shown;

[0036] Figure 3 Shows Figure 2 Enlarged view of part A;

[0037] Figure 4 A schematic diagram of the connection of a first conduit in an automobile parts injection molding device proposed in an embodiment of the present application is shown;

[0038] Figure 5 A schematic diagram of material guide pipe connection in an automobile parts injection molding device proposed in an embodiment of the present application is shown;

[0039] Figure 6 A schematic diagram of an adjustment shaft in an automobile parts injection molding device proposed in an embodiment of the present application is shown;

[0040] Figure 7 A cross-sectional view of one end of the interior of a barrel in an automobile parts injection molding device proposed in an embodiment of the present application is shown;

[0041] Figure 8 A schematic diagram of the cooperation between a sliding rod and a conversion cylinder in an automobile parts injection molding device proposed in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0042] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0043] The figure marks in the drawings of the specification include: chassis 1, hopper 2, rotary drive member 3, electric heating cylinder 4, second linear drive member 5, connecting seat 6, fixed mold 7, movable mold 8, telescopic frame 9, barrel 10, mounting seat 11, conversion box 12, sleeve 13, adjustment shaft 14, output shaft external spline 15, slide seat 16, sliding rod 17, first conduit 18, second conduit 19, material guide trough 20, cleaning channel 21, material guide pipe 22, screw 23, fixed seat 24, connecting sleeve 25, sliding rod external spline 26, injection channel 27, first conducting port 28, conducting cavity 29, second conducting port 30, conversion cylinder 31.

[0044] An automobile parts injection molding device, for example Figure 1 As shown: it includes a chassis 1, a feeding component, a heating component, a mold component and an adjustment component arranged on the chassis 1.

[0045] The feeding assembly includes a hopper 2 mounted on the chassis 1 through a mounting seat 11, a barrel 10 connected to the bottom of the hopper 2, a screw 23 rotatably connected to the barrel 10, and a rotating drive member 3 driving the screw 23 to rotate. The rotating drive member 3 uses a servo motor or a stepper motor, and the barrel 10 is fixed by a fixing seat 24.

[0046] like Figure 1 and Figure 2 As shown, the heating assembly includes a plurality of electric heating tubes 4 which are sleeved on the circumferential ends of the barrel 10 by bolt fixing, welding fixing or riveting fixing, and an electric heating coil is arranged inside the electric heating tubes 4 .

[0047] like Figure 1 and Figure 3 As shown, the mold assembly includes a fixed mold 7 connected to the end of the barrel 10, a movable mold 8 adapted to the fixed mold 7, and a first linear drive member for driving the movable mold 8 to move. The first linear drive member adopts a cylinder or a hydraulic cylinder. The output end of the first linear drive member is connected to the movable mold 8, and a telescopic frame 9 connected to the movable mold 8 and a guide rod for accommodating the sliding of the movable mold 8 are arranged on the chassis 1. A fixed mold plate and a movable mold plate are respectively arranged in the fixed mold 7 and the movable mold 8. The fixed mold plate and the movable mold plate are closed to form a mold cavity. The end of the barrel 10 is connected to the fixed mold 7 through a connecting plate. The connecting plate, the fixed mold 7, and the top mold plate are provided with an injection channel 27 for connecting the barrel 10 with the mold cavity.

[0048] like Figure 1 , Figure 2 , Figure 3As shown, the adjustment component includes a material guide tube 22 arranged between the hopper 2 and the barrel 10, an adjustment shaft 14 horizontally slidably connected to the material guide tube 22, sleeves 13 arranged at both ends of the material guide tube 22 and capable of accommodating the sliding of the adjustment shaft 14, a sliding rod 17 connected to the screw 23, and a second linear drive member 5 for driving the sliding rod 17 to move, and the second linear drive member 5 is a pneumatic cylinder or a hydraulic cylinder.

[0049] like Figure 3 As shown, the output end of the second linear drive member 5 is connected to a slide seat 16, and the slide seat 16 is rotatably connected to the slide rod 17. A bearing seat is arranged inside the slide seat 16 to cooperate with the slide rod 17. Correspondingly, the portion of the slide rod 17 located inside the slide seat 16 is a stepped surface, and the diameter of the portion located inside the slide seat 16 is larger than the diameter of the portion located outside the slide seat 16. The bearing cooperates with the portion of the slide rod 17 located inside the slide seat 16, and the bearing seat cooperates with the end face of the stepped surface, so that the slide rod 17 can rotate relative to the slide seat 16 and can move synchronously with the slide seat 16.

[0050] like Figure 4 As shown, a conversion box 12 is provided on the mounting seat 11 , the conversion box 12 is connected to a first conduit 18 , and a side wall of the sleeve 13 is connected to a second conduit 19 .

[0051] like Figure 3 and Figure 5 As shown, the right end of the sliding rod 17 is spline-connected with the output shaft of the rotary driving member 3, the output shaft end of the rotary driving member 3 is provided with an output shaft external spline 15, and the right end of the sliding rod 17 is provided with an internal spline groove, and the right end of the screw 23 is provided with a connecting sleeve 25 that is rotatably sealed and connected to the inner wall of the barrel 10, and the inner wall of the connecting sleeve 25 is provided with an internal spline groove, and the outer wall of the sliding rod 17 is provided with a sliding rod external spline 26 that is adapted to the internal spline groove, so that the outer wall of the sliding rod 17 is spline-connected with the inner wall of the right end of the screw 23, so that the sliding rod 17 serves as a transmission member for transmitting power between the rotary driving member 3 and the screw 23.

[0052] like Figure 5 and Figure 6 As shown, a guide groove 20 is provided on the adjusting shaft 14 to conduct the guide pipe 22. A cleaning channel 21 is also provided in the adjusting shaft 14. One end of the cleaning channel 21 is connected to the bottom of the side wall of the adjusting shaft 14. Since the cleaning channel 21 of this shape is difficult to process, the adjusting shaft 14 in this embodiment is composed of two half shafts, each of which has a groove. The two grooves are in the shape of cleaning channels 21, and aluminum material is filled on the inner wall of the cleaning channel 21 to form a highly sealed pipeline structure. The end of the second conduit 19 is connected to the sleeve. When the cleaning channel 21 moves to the guide pipe 22, one end of the cleaning channel 21 is connected to the guide pipe 22, and the other end is connected to the second conduit 19 through the sleeve 13.

[0053] like Figure 7As shown, the screw 23 is hollow inside, the sliding rod 17 is slidably connected in the screw 23, and a conducting cavity 29 is provided in the sliding rod 17. One end of the sliding rod 17 is provided with a first conducting port 28 that can extend the screw 23 and communicate with the conducting cavity 29. Figure 8 As shown, the other end of the sliding rod 17 extends into the conversion box 12 and is provided with a second conduction port 30 connected to the conduction cavity 29, and a conversion cylinder 31 is provided in the conversion box 12, and the conversion cylinder 31 is sleeved on the outer wall of the sliding rod 17, and both ends of the conversion cylinder 31 are sealed and connected to the sliding rod 17, and the inner wall of the conversion cylinder 31 is provided with a conversion groove connected to the second conduction port 30, and the first conduit 18 and the conversion groove are provided on the conversion box 12 and are connected to the conversion groove.

[0054] In this embodiment, when the sliding rod 17 is located inside the screw 23, the sliding rod 17 does not affect the screw 23 from squeezing the molten plastic into the mold cavity. When the sliding rod 17 extends out of the screw 23, the molten plastic in the injection channel 27 can be pushed into the mold cavity and the mold cavity can be kept sealed, thereby preventing the molten plastic from entering the injection channel 27 during the cooling process of the mold cavity. This effectively solves the problem that in the production process of traditional horizontal injection molding machines, the cooling pipe cools the mold cavity while also causing a cooling effect on the injection channel 27 between the barrel 10 and the mold cavity, causing the temperature of the molten plastic remaining in the injection channel 27 to decrease, thereby affecting the next molding effect.

[0055] Based on the same inventive concept, the present invention discloses an automobile parts injection molding process, including using the above-mentioned automobile parts injection molding equipment to perform injection molding in the automobile parts production process, the steps are as follows:

[0056] Step S1, the plastic granule raw material is introduced into the hopper 2, and the plastic granule raw material enters the barrel 10 through the guide trough 20;

[0057] Step S2, the rotary drive member 3 drives the screw 23 to rotate, the screw 23 extrude the plastic granule raw material and push the plastic granule raw material to move along the barrel 10, and the electric heating barrel 4 heats the plastic granule raw material in the barrel 10 to form molten plastic;

[0058] Step S3, the molten plastic enters the injection mold cavity from the injection channel under the push of the screw 23, and the second linear drive member 5 drives the sliding rod 17 to extend the screw 23, pushes the molten plastic in the injection channel into the injection mold cavity, and seals the injection mold cavity;

[0059] Step S4, after the molten plastic in the injection mold cavity cools down, the first linear drive member drives the movable mold 8 to move and take out the molded automobile parts;

[0060] In step S5 , the first linear drive member drives the movable mold 8 to move in the opposite direction, so that the fixed mold 7 and the movable mold 8 are closed to form a mold cavity, and the second linear drive member 5 drives the sliding rod 17 to move in the opposite direction, so that the end of the sliding rod 17 is flush with the end of the screw rod 23 .

[0061] Furthermore, during the process of material division injection molding or cleaning the inside of the barrel 10, when the injection molding of the previous plastic raw material is completed, the second linear drive member 5 drives the sliding rod 17 to extend the screw 23, so that the first conducting port 28 extends out of the inside of the screw 23, and at the same time drives the cleaning channel 21 to communicate with the guide tube 22, and the second conduit 19 supplies high-pressure plasticizers and other cleaning agents for cleaning, keeps the electric heating tube 4 heating the barrel 10, and can increase the heating temperature according to the properties of the plastic, thereby improving the fluidity of the plastic, so that the plastic flows along the guide tube 22, the barrel 10, and the conducting cavity 29 and flows out from the first conduit 18, and then introduces high-pressure air, the electric heating tube 4 heats the air, and the inside of the barrel 10 is dried.

[0062] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An automobile parts injection molding equipment, characterized in that: include: A feeding assembly includes a hopper, a barrel connected to the bottom of the hopper, a screw rotatably connected to the barrel, and a rotary drive member for driving the screw to rotate; A heating assembly, comprising a plurality of electric heating cylinders sleeved on the peripheral ends of the barrel; A mold assembly, comprising a fixed mold connected to the end of the barrel, a movable mold adapted to the fixed mold, and a first linear driving member driving the movable mold to move, wherein the fixed mold and the movable mold are closed to form a mold cavity, and an injection channel for connecting the barrel and the mold cavity is provided in the fixed mold; The adjusting component is hollow inside the screw rod. The adjusting component comprises a sliding rod which is arranged inside the screw rod and can extend out of the screw rod to block the injection channel, and a second linear driving member which drives the sliding rod to move.

2. The automobile parts injection molding equipment according to claim 1, characterized in that: The outer wall of the sliding rod is spline-connected to the inner wall of one end of the screw rod, and the end of the sliding rod away from the injection channel is spline-connected to the output shaft of the rotary drive member, and is provided with a sliding seat driven by the second linear drive member.

3. The automobile parts injection molding equipment according to claim 2, characterized in that: The end of the screw away from the injection channel is provided with a connecting sleeve rotatably sealed with the inner wall of the barrel, the inner wall of the connecting sleeve is provided with an inner spline groove, and the outer wall of the sliding rod is provided with a sliding rod outer spline matched with the inner spline groove.

4. The automobile parts injection molding equipment according to claim 1, characterized in that: A conducting cavity is provided in the sliding rod, a first conducting port is provided at one end of the sliding rod through which a screw rod can be extended and which is connected to the conducting cavity, a second conducting port is provided at the other end of the sliding rod through which a screw rod can be extended and which is connected to the conducting cavity, and the second conducting port is connected to a first conduit.

5. The automobile parts injection molding equipment according to claim 2, characterized in that: The adjustment component also includes: A conversion box, wherein the sliding rod passes through the conversion box; A conversion cylinder is arranged in the conversion box and sleeved on the outer wall of the sliding rod. Both ends of the conversion cylinder are sealed with the sliding rod and the inner wall of the conversion cylinder is provided with a conversion groove connected with the second conducting port. The first conduit and the conversion groove are arranged on the conversion box and connected with the conversion groove.

6. The automobile parts injection molding equipment according to claim 5, characterized in that: The adjustment component also includes: A material guide pipe provided between the hopper and the barrel; An adjusting shaft driven by the second linear drive member and slidably connected to the material guide tube, the adjusting shaft is provided with a material guide groove that can conduct the material guide tube, and a cleaning channel is also provided in the adjusting shaft, one end of the cleaning channel is connected to the bottom of the side wall of the adjusting shaft, and the other end of the conducting channel is connected to the second conduit.

7. The automobile parts injection molding equipment according to claim 6, characterized in that: The side wall of the material guiding pipe is also provided with a sleeve, and the adjusting shaft is slidably connected in the sleeve.

8. An automobile parts injection molding equipment according to claim 6 or 7, characterized in that: When the first conducting port is located inside the screw, the material guide groove conducts the material guide tube; when the first conducting port extends out of the screw, the top of the side wall of the adjusting shaft is sealed and connected to the material guide tube and the cleaning channel is connected to the material guide tube.

9. An injection molding process for automobile parts, characterized in that: The method comprises using the automobile parts injection molding equipment according to any one of claims 6 to 8 to perform injection molding in the production process of automobile parts, the steps of which are as follows: Step S1, passing the plastic granule raw material into the hopper, and the plastic granule raw material enters the barrel through the guide trough; Step S2, the rotating driving member drives the screw to rotate, the screw extrude the plastic granule raw material and push the plastic granule raw material to move along the barrel, and the electric heating barrel heats the plastic granule raw material in the barrel to form molten plastic; Step S3, the molten plastic enters the injection mold cavity from the injection channel under the push of the screw, and the second linear drive member drives the sliding rod to extend the screw to push the molten plastic in the injection channel into the injection mold cavity, and the injection mold cavity is blocked; Step S4, after the molten plastic in the injection mold cavity cools down, the first linear drive member drives the mold to move and take out the molded automobile parts; Step S5, the first linear drive member drives the movable mold to move in the opposite direction, so that the fixed mold and the movable mold are closed to form a mold cavity, and the second linear drive member drives the sliding rod to move in the opposite direction, so that the end of the sliding rod is flush with the end of the screw.

10. The automotive parts injection molding process according to claim 9, characterized in that: When performing material-by-material injection molding, after the injection molding of the previous plastic raw material is completed, the second linear drive member drives the sliding rod to extend out of the screw, so that the first conducting port extends out of the inside of the screw, and at the same time drives the cleaning channel to connect with the material guide pipe, and a high-pressure airflow or a high-pressure cleaning agent is supplied by the second conduit. The high-pressure airflow or the high-pressure cleaning agent flows along the material guide pipe, the barrel, and the conducting cavity and flows out from the first conduit. During this process, the electric heating tube keeps heating the barrel.

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