An injection molding device for automotive parts

Abstract

This invention discloses an injection molding apparatus for automotive parts, relating to the field of injection molding equipment. It includes an injection molding machine, with a rotating base, a control box, and a drive unit mounted on its top side. Two lower molds are mounted on the rotating base, and an upper mold is mounted on the drive unit. It should be noted that in this embodiment, the inclusion of a protection device, a cooling and cleaning device, and an early warning device, along with the protection of the lower molds by two closing boxes, prevents impurities or dust from falling into the mold cavity or onto the parts on the lower molds. Simultaneously, when the two closing boxes are closed, the automotive parts on the lower molds can be cooled, and the surface of the lower molds can be cleaned, thereby ensuring the production quality of the automotive parts. Furthermore, in the event of misalignment of the upper or lower molds, an audible alarm can be triggered promptly, allowing workers to handle the situation immediately, thus preventing the large-scale production of defective products and ensuring the production quality of the automotive parts.

Description

Technical Field

[0001] This invention relates to the field of injection molding equipment technology, and more particularly to an injection molding equipment for automotive parts. Background Technology

[0002] Injection molding machines, also known as injection molding machines or injection machines, are the main molding equipment used to produce various shapes of plastic products from thermoplastic or thermosetting plastics using plastic molds. They are classified as vertical, horizontal, and all-electric. Injection molding machines heat the plastic and apply high pressure to the molten plastic, causing it to be injected and fill the mold cavity. The working principle of an injection molding machine is similar to that of a syringe; it uses the thrust of a screw (or plunger) to inject the plasticized molten state (i.e., viscous flow state) into a closed mold cavity, where it solidifies and sets to obtain the finished product.

[0003] Most car parts are made of plastic, and car production is high-volume, often requiring injection molding machines for mass production. During injection molding, a rotary table rotates the lower mold, moving it below the upper mold. A drive unit then moves the upper mold downwards to close it. After mold closure, injection molding occurs. Once injection is complete, the mold opens, and the rotary table continues to rotate the lower mold, moving the next lower mold to the position of the upper mold, allowing the part to be removed from the previous lower mold.

[0004] However, without any protective measures during the rotation of the lower mold, the air in the workshop often carries a lot of impurities or dust. Since the plastic cannot cool completely immediately after injection molding, these impurities or dust fall on the lower mold or automotive parts, causing the parts to be of substandard quality and resulting in significant economic losses for the production plant. At the same time, if the mold is misaligned, it will also cause damage to a large number of parts because it cannot be detected in time. Summary of the Invention

[0005] The purpose of this invention is to provide an injection molding apparatus for automotive parts to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An injection molding apparatus for automotive parts includes an injection molding machine. A rotary seat, a control box, and a drive device are mounted on the top side of the injection molding machine. Two lower molds are mounted on the rotary seat, and an upper mold is mounted on the drive device. The drive device drives the upper mold to close with the lower molds. A partition plate is mounted on the injection molding machine, and the rotary seat is located inside the partition plate.

[0008] It also includes two protective devices, which are respectively installed on the two lower molds. Each protective device includes two closing boxes, which are used to seal and protect the lower molds. A cooling and cleaning device is installed inside the closing boxes, which is used to cool the automotive parts on the lower molds and clean the surface of the lower molds.

[0009] It also includes two triggering devices, which are respectively installed on the two protection devices. The triggering devices are used to trigger the protection devices to close or open.

[0010] It also includes an early warning device, which is sleeved around the lower mold and adapted to the upper mold. The early warning device is used to position and warn of the lower mold and the upper mold.

[0011] Furthermore, in a preferred embodiment of the present invention, the protective device further includes a connecting seat, which is sleeved on the lower mold, and mounting seats are installed on both sides of the connecting seat;

[0012] Both sides of the two closing boxes are equipped with rotating frames, and rotating shafts are rotatably mounted on the rotating frames and rotatably mounted on the connecting seats.

[0013] Furthermore, in a preferred embodiment of the present invention, the cooling and cleaning device includes a motor, which is mounted on the upper surface of the closing box;

[0014] The output shaft of the motor is connected to a power shaft via a coupling. The power shaft extends into the closing box. Multiple cooling fan blades are equidistantly mounted on the surface of the power shaft in a circular direction. The power shaft drives the multiple cooling fan blades to blow air to cool the automotive parts on the lower mold.

[0015] Furthermore, in a preferred embodiment of the present invention, a sliding frame is slidably installed inside the closing box, and a cleaning soft plate is installed on the bottom side of the sliding frame. The cleaning soft plate is used to clean the upper surface of the lower mold.

[0016] The inner walls on both sides of the closing box are provided with sliding grooves, and sliders are slidably installed in both sliding grooves. The two sliders are respectively installed on both sides of the sliding frame.

[0017] Furthermore, in a preferred embodiment of the present invention, a drive frame is mounted at the bottom end of the power shaft, and the drive frame is movably mounted on the top side of the sliding frame;

[0018] The top side of the sliding frame is provided with a drive groove, and a drive shaft is rotatably mounted on the drive frame, with the drive shaft movably mounted in the drive groove.

[0019] Furthermore, in a preferred embodiment of the present invention, each of the two closing boxes has an installation groove on one side that is close to each other, and a motor switch is installed on the inner wall of each of the two installation grooves.

[0020] Furthermore, in a preferred embodiment of the present invention, the triggering device includes a trigger frame, which is mounted on the top side of the injection molding machine;

[0021] Gears are installed on both of the two rotating shafts near the trigger frame. Double-sided racks mesh on the two gears. A drive frame is installed on the double-sided racks. A semi-circular plate is installed on the drive frame. The semi-circular plate is in contact with the trigger frame.

[0022] Furthermore, in a preferred embodiment of the present invention, a tension groove is provided on the connecting seat, and a limiting block is slidably installed in the tension groove, the limiting block being installed on the drive frame;

[0023] A tension spring is installed on the bottom side of the limiting block, and the bottom end of the tension spring is installed on the bottom inner wall of the tension groove.

[0024] Furthermore, in a preferred embodiment of the present invention, the warning device includes a mounting frame, which is sleeved on the lower mold, and four positioning rods are mounted on the mounting frame, the height of which is higher than that of the lower mold;

[0025] The mounting bracket has four extrusion slots, and the bottom ends of the four positioning rods are respectively installed in the four extrusion slots, and each of them is equipped with a sound alarm. An alarm switch is installed on the bottom side of the sound alarm.

[0026] Furthermore, in a preferred embodiment of the present invention, a buffer rod is installed on the bottom side of the mounting bracket, a buffer sleeve is installed on the top side of the connecting seat, the bottom end of the buffer rod is movably installed in the buffer sleeve and a buffer spring is installed thereon, and the bottom end of the buffer spring is installed on the top side of the connecting seat.

[0027] The beneficial effects of the automotive parts injection molding device proposed in this invention are:

[0028] In this invention, by setting up a protection device and a cooling and cleaning device, the lower mold is protected by two closing boxes while it continues to rotate after injection molding. During the process of the rotating seat driving the lower mold to rotate before and after injection molding, impurities or dust are prevented from falling into the mold cavity or on the parts of the lower mold. At the same time, when the two closing boxes are closed, the automotive parts on the lower mold can be cooled and the surface of the lower mold can be cleaned, thereby ensuring the production quality of the automotive parts.

[0029] Furthermore, in this invention, by setting a triggering device, when the rotating seat drives the lower mold to rotate to the position of the trigger frame, the trigger frame presses the semicircular plate, causing the semicircular plate to move upward under force. When the semicircular plate moves upward, it drives the racks on both sides to move. The movement of the racks on both sides drives the two gears to rotate. The rotation of the two gears drives the two rotating frames to rotate through the two rotating shafts, so that the two rotating frames can drive the two closing boxes to rotate and open. This enables the closing boxes to automatically unfold when the lower mold moves to the position of the upper mold, or to a position symmetrical to the upper mold, thereby facilitating mold closing injection or removing automotive parts.

[0030] Furthermore, in this invention, by setting up an early warning device, when the upper or lower mold is misaligned, the upper mold presses the positioning rod, allowing the positioning rod to move within the extrusion groove. This, in turn, causes the alarm switch to move via a sound alarm. The alarm switch is pressed against the bottom inner wall of the extrusion groove, thereby triggering the sound alarm and alerting the staff to handle the situation promptly. This prevents the large-scale production of defective products and ensures the production quality of automotive parts. Attached Figure Description

[0031] Figure 1 This is a three-dimensional structural schematic diagram of an injection molding device for automotive parts provided in an embodiment of the present invention;

[0032] Figure 2 This is a partial structural schematic diagram of an injection molding device for automotive parts provided in an embodiment of the present invention;

[0033] Figure 3 This is a schematic diagram of the connection between the rotating seat and the lower mold of an injection molding device for automotive parts, provided by an embodiment of the present invention.

[0034] Figure 4 This is a schematic diagram illustrating the connection between a protective device and a cooling and cleaning device in an automotive parts injection molding apparatus, as provided in an embodiment of the present invention.

[0035] Figure 5 This is a schematic diagram of the structure of a cooling and cleaning device for an automotive parts injection molding apparatus, provided in an embodiment of the present invention.

[0036] Figure 6 A partial structural schematic diagram of the closing box of an injection molding device for automotive parts provided in an embodiment of the present invention;

[0037] Figure 7 This is a partial structural diagram of the connection between the gear and the double-sided rack in an injection molding device for automotive parts, provided by an embodiment of the present invention.

[0038] Figure 8 This is a cross-sectional view of the connection between the connecting seat and the double-sided rack and other structures of an injection molding device for automotive parts, provided in an embodiment of the present invention.

[0039] Figure 9 This is a cross-sectional structural schematic diagram of a warning device for an automotive parts injection molding apparatus provided in an embodiment of the present invention.

[0040] In the diagram: 1-Injection molding machine; 2-Rotating seat; 3-Lower mold; 4-Upper mold; 5-Protective device; 501-Closing box; 502-Rotating frame; 503-Mounting seat; 504-Rotating shaft; 505-Connecting seat; 6-Cooling and cleaning device; 601-Motor; 602-Power shaft; 603-Cooling fan blade; 604-Sliding frame; 605-Cleansing plate; 606-Drive frame; 607-Drive groove; 608-Drive shaft; 609-Slide groove; 610-Slider; 611-Mounting groove; 612- 7-Motor switch; 7-Triggering device; 701-Trigger frame; 702-Gear; 703-Double-sided rack; 704-Drive frame; 705-Semi-circular plate; 706-Tension groove; 707-Limiting block; 708-Tension spring; 8-Warning device; 801-Mounting frame; 802-Positioning rod; 803-Buffer rod; 804-Buffer sleeve; 805-Buffer spring; 806-Extrusion groove; 807-Sound alarm; 808-Alarm switch; 9-Enclosure; 10-Control box; 11-Drive device. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0042] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0043] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0044] Furthermore, in the description of this invention, it should be noted that the terms "center," "upper," "lower," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0045] Furthermore, terms such as "horizontal," "vertical," and "perpendicular" do not imply that components must be absolutely vertical, but rather that they can be slightly tilted. For example, "vertical" simply means that its direction is more vertical relative to "horizontal," not that the structure must be completely vertical, but can be slightly tilted.

[0046] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Example

[0047] Please refer to the instruction manual attached. Figure 1 This invention provides an injection molding apparatus for automotive parts, comprising an injection molding machine 1. A rotary seat 2, a control box 10, and a drive device 11 are mounted on the top side of the injection molding machine 1. Two lower molds 3 are mounted on the rotary seat 2, and an upper mold 4 is mounted on the drive device 11. The drive device 11 drives the upper mold 4 to close with the lower molds 3. A retaining plate 9 is mounted on the injection molding machine 1, and the rotary seat 2 is located within the retaining plate 9. It should be noted that, in this embodiment of the invention, during the injection molding production of automotive parts, the rotary seat 2 drives the lower molds 3 to rotate, rotating them to the position of the upper mold 4. The drive device 11 then drives the upper mold 4 to move downwards to close with the lower molds 3, and then injection molding is performed.

[0048] Please refer to the attached instruction manual. Figure 1-9The present invention provides an injection molding apparatus for automotive parts, which further includes two protective devices 5, which are respectively installed on two lower molds 3. The protective devices 5 include two closing boxes 501, which are used to close and protect the lower molds 3. A cooling and cleaning device 6 is installed inside the closing box 501, which is used to cool the automotive parts on the lower molds 3 and clean the surface of the lower molds 3. In addition, it also includes two triggering devices 7, which are respectively installed on the two protective devices 5, and are used to trigger the protective devices 5 to close or open.

[0049] Furthermore, in this embodiment of the invention, an early warning device 8 is also included. The early warning device 8 is sleeved around the lower mold 3 and is adapted to the upper mold 4. The early warning device 8 is used to position and warn of the lower mold 3 and the upper mold 4. It should be noted that in this embodiment of the invention, the lower mold 3 is protected by two closing boxes 501. During the rotation of the lower mold 3 driven by the rotating seat 2 before and after injection molding, impurities or dust are prevented from falling into the mold cavity or on the parts of the lower mold 3, thereby ensuring the production quality of the automotive parts. In addition, the cooling and cleaning device 6 can be automatically activated after the two closing boxes 501 are closed, and can provide auxiliary cooling for the automotive parts, which can accelerate the hardening of the automotive parts and clean the surface of the lower mold 3, thereby further ensuring the cleanliness of the lower mold 3. Furthermore, the trigger device 7 can automatically unfold when the lower mold 3 moves to the position of the upper mold 4 or to a position symmetrical to the upper mold 4, which is convenient to use. If misalignment occurs when the upper mold 4 and the lower mold 3 are closed, the warning device 8 can sound an alarm to remind the staff to deal with it in time and avoid a large amount of damage to the automotive parts.

[0050] For further details, please refer to the appendix to the instruction manual. Figure 1-9 This invention provides an injection molding device for automotive parts. The protective device 5 further includes a connecting seat 505, which is sleeved on the lower mold 3. Mounting seats 503 are installed on both sides of the connecting seat 505. Rotating frames 502 are installed on both sides of the two closing boxes 501. A rotating shaft 504 is rotatably mounted on the rotating frame 502, and the rotating shaft 504 is rotatably mounted on the connecting seat 505. It should be noted that in this embodiment of the invention, when the closing box 501 rotates, it drives the rotating frame 502 to rotate, and the rotating frame 502 rotates on the mounting seat 503 via the rotating shaft 504.

[0051] Please refer to the instruction manual attached. Figure 4-6Furthermore, the automotive parts injection molding apparatus provided in this embodiment of the invention includes a cooling and cleaning device 6 comprising a motor 601 mounted on the upper surface of a closing box 501; a power shaft 602 is mounted on the output shaft of the motor 601 via a coupling, the power shaft 602 extending into the closing box 501; a plurality of cooling fan blades 603 are equidistantly mounted in a ring along the circumferential direction on the surface of the power shaft 602, the power shaft 602 driving the plurality of cooling fan blades 603 to blow air to cool the automotive parts on the lower mold 3. It should be noted that, in this embodiment of the invention, when the two closing boxes 501 are closed, the two motors 601 can automatically start, enabling the motors 601 to drive the plurality of cooling fan blades 603 to rotate via the power shaft 602, thereby blowing air to cool the automotive parts on the lower mold 3, ensuring timely cooling of the automotive parts and guaranteeing the production quality of the automotive parts.

[0052] More specifically, in this embodiment of the invention, a sliding frame 604 is slidably installed inside the closing box 501, and a cleaning soft plate 605 is installed on the bottom side of the sliding frame 604. The cleaning soft plate 605 is used to clean the upper surface of the lower mold 3. Sliding grooves 609 are provided on both inner walls of the closing box 501, and sliders 610 are slidably installed in both sliding grooves 609. The two sliders 610 are respectively installed on both sides of the sliding frame 604. It should be noted that, in this embodiment of the invention, when the closing box 501 is closed, the sliding frame 604 slides within the two sliding grooves 609 via the two sliders 610, thereby driving the cleaning soft plate 605 to clean the lower mold 3.

[0053] Please continue to refer to the instruction manual appendix. Figure 4-6 More specifically, in this embodiment of the invention, a drive frame 606 is mounted on the bottom end of the power shaft 602, and the drive frame 606 is movably mounted on the top side of the sliding frame 604; a drive groove 607 is provided on the top side of the sliding frame 604, and a drive shaft 608 is rotatably mounted on the drive frame 606, and the drive shaft 608 is movably mounted in the drive groove 607. It should be noted that, in this embodiment of the invention, when the power shaft 602 rotates, it can drive the drive frame 606 to rotate, and the rotation of the drive frame 606 can drive the drive shaft 608 to rotate. The drive shaft 608 rotates in the drive groove 607 and drives the sliding frame 604 to move, so that the sliding frame 604 can drive the cleaning plate 605 to clean the lower mold 3.

[0054] More specifically, in this embodiment of the invention, each of the two closing boxes 501 has a mounting groove 611 on one side that is close to each other, and a motor switch 612 is installed on the inner wall of each of the two mounting grooves 611. It should be noted that, in this embodiment of the invention, when the two closing boxes 501 are closed, the two motor switches 612 press against each other, so that the two motor switches 612 can be opened simultaneously, thereby starting the two motors 601, achieving the purpose of automatically starting the motors 601 when the closing boxes 501 are closed.

[0055] Please refer to the instruction manual attached. Figure 3-7 Furthermore, in an embodiment of the present invention, an injection molding device for automotive parts is provided. The triggering device 7 includes a trigger frame 701, which is mounted on the top side of the injection molding machine 1. Additionally, gears 702 are mounted on two rotating shafts 504 near the trigger frame 701. Double-sided racks 703 mesh on the two gears 702. A drive frame 704 is mounted on the double-sided racks 703. A semi-circular plate 705 is mounted on the drive frame 704, and the semi-circular plate 705 contacts the trigger frame 701.

[0056] It should be noted that in this embodiment of the invention, when the rotating seat 2 drives the lower mold 3 to rotate to the position of the trigger frame 701, the trigger frame 701 presses the semi-circular plate 705, causing the semi-circular plate 705 to move upward under force. When the semi-circular plate 705 moves upward, it drives the double-sided rack 703 to move. The movement of the double-sided rack 703 drives the two gears 702 to rotate. The rotation of the two gears 702 drives the two rotating frames 502 to rotate through the two rotating shafts 504, so that the two rotating frames 502 can drive the two closing boxes 501 to rotate and open. This enables the closing boxes 501 to automatically unfold when the lower mold 3 moves to the position of the upper mold 4, or to a position symmetrical to the upper mold 4, thereby facilitating mold closing injection or removal of automotive parts.

[0057] Please continue to refer to the instruction manual appendix. Figure 3-7 More specifically, in this embodiment of the invention, a tension groove 706 is provided on the connecting seat 505, and a limiting block 707 is slidably installed in the tension groove 706. The limiting block 707 is installed on the driving frame 704. A tension spring 708 is installed on the bottom side of the limiting block 707, and the bottom end of the tension spring 708 is installed on the bottom inner wall of the tension groove 706. It should be noted that in this embodiment of the invention, when the semicircular plate 705 is pressed by the trigger frame 701, thereby causing the semicircular plate 705 to drive the driving frame 704 to move upward, the driving frame 704 slides vertically in the tension groove 706 through the limiting block 707, and drives the tension spring 708 to stretch. Therefore, when the semicircular plate 705 leaves the trigger frame 701, the restoring force of the tension spring 708 can drive the driving frame 704 to reset.

[0058] Further, please refer to the appendix to the instruction manual. Figure 4 and Figure 9 The present invention provides an injection molding device for automotive parts. The warning device 8 includes a mounting bracket 801, which is sleeved on the lower mold 3. Four positioning rods 802 are installed on the mounting bracket 801, and the height of the positioning rods 802 is higher than that of the lower mold 3.

[0059] In addition, the mounting bracket 801 has four extrusion grooves 806, and the bottom ends of the four positioning rods 802 are respectively installed in the four extrusion grooves 806, each equipped with an audible alarm 807. An alarm switch 808 is installed on the bottom side of the audible alarm 807. It should be noted that, in this embodiment of the invention, when the upper mold 4 is misaligned, the upper mold 4 presses the positioning rods 802, allowing the positioning rods 802 to move within the extrusion grooves 806. This movement is triggered by the audible alarm 807, causing the alarm switch 808 to move. The alarm switch 808 is pressed against the bottom inner wall of the extrusion groove 806, thereby triggering the audible alarm 807, reminding the staff to handle the situation promptly, thus avoiding the large-scale production of defective products and ensuring the production quality of automotive parts.

[0060] More specifically, in this embodiment of the invention, a buffer rod 803 is installed on the bottom side of the mounting bracket 801, and a buffer sleeve 804 is installed on the top side of the connecting seat 505. The bottom end of the buffer rod 803 is movably installed inside the buffer sleeve 804 and a buffer spring 805 is installed thereon. The bottom end of the buffer spring 805 is installed on the top side of the connecting seat 505. It should be noted that, in this embodiment of the invention, when the upper mold 4 continues to move downward, the positioning rod 802 can press the mounting bracket 801 to move. The mounting bracket 801 drives the buffer rod 803 to move inside the buffer sleeve 804, and drives the buffer spring 805 to be stressed, thus avoiding affecting the movement of the upper mold 4.

[0061] In summary, the working principle of the automotive parts injection molding device provided in this embodiment of the invention is as follows:

[0062] When the rotating seat 2 drives the lower mold 3 to rotate, when the two lower molds 3 rotate to the corresponding positions of the upper mold 4 and the positions symmetrical to the upper mold 4, the rotating seat 2 drives the lower mold 3 to rotate to the position of the trigger frame 701. The trigger frame 701 presses the semi-circular plate 705, causing the semi-circular plate 705 to move upward under force. When the semi-circular plate 705 moves upward, it drives the double-sided rack 703 to move. The movement of the double-sided rack 703 drives the two gears 702 to rotate. The rotation of the two gears 702 drives the two rotating frames 502 to rotate through the two rotating shafts 504, so that the two rotating frames 502 can drive the two closing boxes 501 to rotate and open. This allows the closing boxes 501 to automatically unfold when the lower mold 3 moves to the position of the upper mold 4 or the position symmetrical to the upper mold 4, which facilitates mold closing injection or removal of automotive parts. At the same time, the frame 704 slides vertically in the stretching groove 706 through the limiting block 707, and drives the stretching spring 708 to stretch.

[0063] Furthermore, when the upper mold 4 moves down to close with the lower mold 3, if the position of the upper mold 4 or the lower mold 3 is offset, the upper mold 4 will press the positioning rod 802, allowing the positioning rod 802 to move within the extrusion groove 806. This will cause the alarm switch 808 to move via the sound alarm 807. The alarm switch 808 will be pressed by the bottom inner wall of the extrusion groove 806, thereby triggering the sound alarm 807 and reminding the staff to handle the situation promptly.

[0064] Furthermore, after injection molding, the rotating seat 2 drives the two lower molds 3 to continue rotating, allowing the two lower molds 3 to separate from the two trigger frames 701. The return force of the tension spring 708 can drive the drive frame 704 to reset, thereby resetting the two closing boxes 501. When the two closing boxes 501 close, the two motor switches 612 press against each other, allowing the two motor switches 612 to open simultaneously, thereby starting the two motors 601. The motors 601 can then drive multiple cooling fan blades 603 to rotate via the power shaft 602, which can blow air to cool the automotive parts on the lower molds 3. In addition, when the power shaft 602 rotates, it can drive the drive frame 606 to rotate. The rotation of the drive frame 606 can drive the drive shaft 608 to rotate. The drive shaft 608 rotates in the drive groove 607 and drives the sliding frame 604 to move, allowing the sliding frame 604 to drive the cleaning plate 605 to clean the lower molds 3.

[0065] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An injection molding apparatus for an automobile part, characterized by comprising: It includes injection molding machine, the top side of the injection molding machine is provided with a rotating seat, a control box and a driving device, two lower molds are installed on the rotating seat, an upper mold is installed on the driving device, the driving device drives the upper mold and the lower mold to close, the injection molding machine is provided with a coaming, and the rotating seat is located in the coaming; It also includes two protection devices, two protection devices are installed on two lower molds, the protection device includes two folding boxes, two folding boxes are used to close and protect the lower mold, a cooling and cleaning device is installed in the folding box, the cooling and cleaning device is used to cool the automobile parts on the lower mold and clean the surface of the lower mold; It also includes two trigger devices, two trigger devices are installed on two protection devices, the trigger device is used to trigger the protection device to close or open; It also includes a warning device, the warning device is sleeved on the four sides of the lower mold, the warning device is matched with the upper mold, and the warning device is used for positioning and warning the lower mold and the upper mold.

2. The injection molding device for an automobile part according to claim 1, wherein The protection device also includes a connecting seat, the connecting seat is sleeved on the lower mold, and the connecting seat is installed on both sides of the connecting seat; Both sides of the two folding boxes are provided with rotating frames, rotating shafts are rotatably installed on the rotating frames, and the rotating shafts are rotatably installed on the connecting seat.

3. The injection molding device for an automobile part according to claim 2, wherein The cooling and cleaning device includes a motor, and the motor is installed on the upper surface of the folding box; The output shaft of the motor is provided with a power shaft through a shaft coupling, the power shaft extends into the folding box, a plurality of cooling vanes are annularly and equidistantly installed on the surface of the power shaft in the circumferential direction, and the power shaft drives the plurality of cooling vanes to blow and cool the automobile parts on the lower mold.

4. The injection molding device for an automobile part according to claim 3, wherein A sliding frame is slidably installed in the folding box, a cleaning soft plate is installed on the bottom side of the sliding frame, and the cleaning soft plate is used to clean the upper surface of the lower mold; Sliding grooves are formed in the inner walls of both sides of the folding box, sliding blocks are slidably installed in the two sliding grooves, and the two sliding blocks are installed on both sides of the sliding frame.

5. The injection molding device for an automobile part according to claim 4, wherein The bottom end of the power shaft is provided with a driving frame, and the driving frame is movably installed on the top side of the sliding frame; A driving groove is formed in the top side of the sliding frame, a driving shaft is rotatably installed on the driving frame, and the driving shaft is movably installed in the driving groove.

6. The injection molding device for an automobile part according to claim 5, wherein Mounting grooves are formed in the sides of the two folding boxes close to each other, and motor switches are installed on the inner walls of the two mounting grooves.

7. The injection molding device for an automobile part according to claim 6, wherein The trigger device includes a trigger frame, and the trigger frame is installed on the top side of the injection molding machine; Two gears are installed on the two rotating shafts close to the trigger frame, two bilateral racks are engaged with the two gears, a driving frame is installed on the bilateral racks, a semicircular plate is installed on the driving frame, and the semicircular plate is in contact with the trigger frame.

8. The injection molding device for an automobile part according to claim 7, wherein A stretching groove is formed in the connecting seat, a limiting block is slidably installed in the stretching groove, and the limiting block is installed on the driving frame. The bottom side of the limiting block is provided with a tension spring, and the bottom end of the tension spring is installed on the inner wall of the bottom side of the tension groove.

9. The injection molding device for an automobile part according to claim 8, wherein The early warning device comprises a mounting frame which is sleeved on the lower mold, four positioning rods are installed on the mounting frame, and the height of the positioning rods is higher than that of the lower mold; Four extrusion grooves are formed in the mounting frame, the bottom ends of the four positioning rods are respectively installed in the four extrusion grooves, and a sound alarm is installed on each positioning rod, and the bottom side of the sound alarm is provided with an alarm switch.

10. The injection molding device for an automobile part according to claim 9, wherein The bottom side of the mounting frame is provided with a buffer rod, the top side of the connecting seat is provided with a buffer sleeve, the bottom end of the buffer rod is movably installed in the buffer sleeve, a buffer spring is installed on the buffer rod, and the bottom end of the buffer spring is installed on the top side of the connecting seat.

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