Positioning and guiding device for injection molding of automobile plastic parts

Abstract

The application relates to the injection molding field and particularly relates to a positioning and guiding device for injection molding of automobile plastic parts, which comprises a supporting frame, the top of the supporting frame is provided with a plurality of partition plates, an upper mold is arranged on the partition plates, a transverse moving mechanism is arranged on the top of the supporting frame in a sliding mode, a longitudinal moving mechanism is drivenly connected to the transverse moving mechanism, a height adjusting mechanism is connected to the longitudinal moving mechanism, a limiting mechanism is connected to the bottom of the height adjusting mechanism, an amplitude adjusting mechanism is connected to one side of the bottom of the height adjusting mechanism close to the limiting mechanism, and a knocking mechanism is connected to the amplitude adjusting mechanism. The device can realize flexible adjustment in the transverse, longitudinal and height directions through the cooperation of the transverse moving mechanism, the longitudinal moving mechanism and the height adjusting mechanism, the transmission of the adjusting mechanisms is smooth, and the alignment and calibration of molds of different specifications can be quickly completed.

Description

Technical Field

[0001] This invention belongs to the field of injection molding, and specifically relates to a positioning and guiding device for injection molding of automotive plastic parts. Background Technology

[0002] With the rapid development of the automotive industry, automotive plastic parts are increasingly widely used in automobile manufacturing due to their advantages such as light weight, good formability, and low cost. Key components such as dashboards, door panels, and bumpers all extensively utilize plastic materials. Injection molding is the core process in the production of automotive plastic parts. It involves injecting molten plastic into a mold cavity, which then cools and solidifies to obtain the desired shape of the plastic part. The accuracy and stability of the positioning and guiding directly determine the dimensional accuracy, appearance quality, and mold lifespan of the injection molded part.

[0003] However, most devices use a single mechanical clamping mechanism, which is prone to loosening of the limit and mold displacement due to injection vibration. Furthermore, the limit mechanism has low adjustment flexibility and insufficient versatility, making it unable to adapt to molds of different sizes and shapes. Existing devices on the market lack targeted molding auxiliary structures, making it difficult to eliminate air bubbles in the cavity and ensure dense plastic filling, which can easily lead to substandard mechanical properties of injection molded parts. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of many current injection mold limiting mechanisms in terms of stability, flexibility and auxiliary molding function, thereby realizing a positioning and guiding device for injection molding of automotive plastic parts.

[0005] To achieve the above-mentioned objectives, the technical solution of the present invention is: a positioning and guiding device for injection molding of automotive plastic parts, comprising a support frame, a plurality of partition plates being provided on the top of the support frame, an upper mold being provided on the partition plates, a lateral moving mechanism being slidably provided on the top of the support frame, a longitudinal moving mechanism being drivenly connected to the lateral moving mechanism, a height adjusting mechanism being connected to the longitudinal moving mechanism, a limiting mechanism being connected to the bottom of the height adjusting mechanism, an amplitude adjusting mechanism being connected to the side of the bottom of the height adjusting mechanism near the limiting mechanism, and a striking mechanism being connected to the amplitude adjusting mechanism.

[0006] In the aforementioned positioning and guiding device for injection molding of automotive plastic parts, the lateral movement mechanism includes a moving frame, a first servo motor, and a moving block. Slider blocks are fixed on both sides of the moving frame, and grooves for sliding of the sliders are opened on opposite sides of the support frame. The first servo motor is connected to the bottom of the support frame, and a first threaded rod is connected to the output end of the first servo motor. The moving block is fitted with a matching moving block on the outer surface of the first threaded rod, and the moving block is fixed to the bottom of the moving frame.

[0007] In the aforementioned positioning and guiding device for injection molding of automotive plastic parts, the longitudinal movement mechanism includes a second servo motor and a second threaded rod. The second servo motor is fixed to one side of the moving frame, and the second threaded rod is rotatably connected to the inner wall of the moving frame. The output end of the second servo motor is fixed to one end of the second threaded rod.

[0008] In the aforementioned positioning and guiding device for injection molding of automotive plastic parts, the height adjustment mechanism includes a connecting frame, a lifting block, a slide rail, and a third threaded rod. The connecting frame has an internal thread that matches the second threaded rod. A third drive motor is connected to the top of the connecting frame. The third threaded rod is rotatably connected to one side of the connecting frame. The output end of the third drive motor is fixed to the top of the third threaded rod. The lifting block is sleeved on the outer surface of the third threaded rod. The slide rail is symmetrically fixed to the inner sidewall of the connecting frame. A groove for sliding on the slide rail is provided on one side of the lifting block.

[0009] In the aforementioned positioning and guiding device for injection molding of automotive plastic parts, the limiting mechanism includes a fourth servo motor, a hexagonal sleeve, a connecting plate, an electric telescopic rod, and a limiting bolt. The fourth servo motor is connected to one side wall of the lifting block, and the output end of the fourth servo motor is connected to the hexagonal sleeve. The two ends of the connecting plate are slidably connected to the inner wall of the support frame. Grooves for sliding of the connecting plate are provided on both sides of the inner wall of the support frame. One side of the connecting plate is longitudinally slidably connected to the bottom of the connecting frame, and a sliding groove for sliding on the bottom of the connecting frame is provided on the connecting plate.

[0010] In the aforementioned positioning and guiding device for injection molding of automotive plastic parts, the connecting plate is provided with through holes for sliding of the hexagonal sleeve, the top of the hexagonal sleeve is fitted with a baffle, and a plurality of electric telescopic rods are evenly fixed on one side of the connecting plate. The output end of the electric telescopic rod is connected to a limit frame, and the limit frame is adapted to the outer surface of the limit bolt.

[0011] In the aforementioned positioning and guiding device for injection molding of automotive plastic parts, the amplitude adjustment mechanism includes a limiting frame, a fifth servo motor, a sliding rod, a fourth threaded rod, a sliding plate, a hydraulic telescopic cylinder, a threaded retaining ring, a gear, a transmission belt, a rotating wheel, and a rotating plate. The limiting frame is connected to one side of the connecting plate, and several sliding rods are fixed between the limiting frames. The sliding plate has limiting holes for sliding on the sliding rods. The hydraulic telescopic cylinder is rotatably connected to the sliding plate, and its output end is rotatably connected to one side of the rotating plate. One end of the rotating plate is rotatably connected to one side wall of the sliding plate. The fourth threaded rod is rotatably connected to the limiting frame, and the fifth servo motor is fixed to one side of the limiting frame. The output end of the fifth servo motor drives the fourth threaded rod to rotate.

[0012] In the aforementioned positioning and guiding device for injection molding of automotive plastic parts, the inner wall of the threaded retaining ring is provided with an internal thread that is compatible with the fourth threaded rod. One side of the threaded retaining ring is fastened by a bolt. The threaded retaining ring is sleeved on the fourth threaded rod. The outer surface of the other side of the threaded retaining ring is fixedly connected to the inner wall of the gear. The rotating wheel is rotatably connected to one side wall of the rotating plate. The outer surfaces of the gear and the rotating wheel are sleeved with the transmission belt.

[0013] In the aforementioned positioning and guiding device for injection molding of automotive plastic parts, the striking mechanism includes a striking cylinder, a rotating shaft, an eccentric wheel, and a placement frame. One side of the placement frame is fixedly connected to the other side of the rotating plate. The striking cylinder is rotatably connected to the inner wall of the placement frame. The rotating shaft is rotatably connected inside the striking cylinder. The eccentric wheel is fixed to the outer surface of the rotating shaft. One end of the rotating shaft is fixedly connected to one side of the rotating wheel.

[0014] Compared with the prior art, the positioning and guiding device for injection molding of automotive plastic parts of the present invention has at least the following beneficial effects: The positioning and guiding device for injection molding of automotive plastic parts of the present invention enables flexible adjustment in the lateral, longitudinal and height directions through the coordinated operation of the lateral movement mechanism, the longitudinal movement mechanism and the height adjustment mechanism. The transmission connection of each adjustment mechanism is smooth, and the alignment and calibration of molds of different specifications can be completed quickly. This helps to enhance the adaptability of the device to the production of automotive plastic parts of multiple specifications, shorten the mold change and debugging time, and improve production efficiency.

[0015] The limiting mechanism adopts a design that combines a hexagonal sleeve driven by a fourth servo motor with a limiting frame driven by an electric telescopic rod, which can achieve double limiting and fixing of the mold and improve the stability of the limiting structure. At the same time, with the sliding adjustment of the connecting plate and the even distribution of multiple sets of electric telescopic rods, it can be adapted to injection molds of different sizes and shapes, improving the versatility of the device.

[0016] The device is equipped with an amplitude adjustment mechanism that works in conjunction with the striking mechanism to flexibly adjust the striking angle and amplitude according to different parts and thicknesses of the injection molded part. The vibration generated by the rotation of the eccentric wheel drives the striking cylinder to move, which can help eliminate air bubbles inside the cavity, promote dense plastic filling, and help improve the density and mechanical properties of the injection molded part, thereby improving the molding quality of the injection molded part. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a side view schematic diagram of the present invention; Figure 3 This is a front view schematic diagram of the lateral movement mechanism of the present invention; Figure 4 This is a front view schematic diagram of the limiting mechanism of the present invention; Figure 5 This is a schematic cross-sectional view of the entire invention; Figure 6 This is the invention Figure 5 Enlarged diagram of A in the middle; Figure 7 This is a first front view schematic diagram of the amplitude adjustment mechanism of the present invention; Figure 8 This is a second main view schematic diagram of the amplitude adjustment mechanism of the present invention; Figure 9 This is a cross-sectional schematic diagram of the striking mechanism of the present invention.

[0018] In the diagram: 1. Support frame; 2. Lateral movement mechanism; 201. Moving frame; 202. First servo motor; 203. Moving block; 204. First threaded rod; 3. Longitudinal movement mechanism; 301. Second servo motor; 302. Second threaded rod; 4. Height adjustment mechanism; 401. Connecting frame; 402. Third drive motor; 403. Lifting block; 404. Slide rail; 405. Third threaded rod; 5. Fourth servo motor; 501. Hexagonal sleeve; 6. Limiting mechanism; 601. Connecting plate; 602. Electric extension... 603. Retractable rod; 604. Limit bolt; 605. Limit frame; 606. Baffle; 7. Amplitude adjustment mechanism; 701. Limit bracket; 702. Fifth servo motor; 703. Sliding rod; 704. Fourth threaded rod; 705. Sliding plate; 706. Hydraulic telescopic cylinder; 707. Threaded retaining ring; 708. Gear; 709. Transmission belt; 7010. Rotating wheel; 7011. Rotating plate; 8. Dividing plate; 9. Striking mechanism; 901. Striking cylinder; 902. Rotating shaft; 903. Eccentric wheel; 904. Placement frame. Detailed Implementation

[0019] The positioning and guiding device for injection molding of automotive plastic parts of the present invention will be described in more detail below with reference to the accompanying drawings and specific embodiments.

[0020] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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. Therefore, they should not be construed as limitations on this invention.

[0021] This embodiment discloses a positioning and guiding device for injection molding of automotive plastic parts. Currently, many injection mold limiting mechanisms have significant shortcomings in stability, flexibility, and auxiliary molding functions. Referring to… Figures 1-9 It mainly includes a support frame 1, with several dividing plates 8 on the top of the support frame 1, an upper mold on the dividing plate 8, a lateral moving mechanism 2 slidably mounted on the top of the support frame 1, a longitudinal moving mechanism 3 connected to the lateral moving mechanism 2, a height adjusting mechanism 4 connected to the longitudinal moving mechanism 3, a limit mechanism 6 connected to the bottom of the height adjusting mechanism 4, an amplitude adjusting mechanism 7 connected to the side of the bottom of the height adjusting mechanism 4 near the limit mechanism 6, and a striking mechanism 9 connected to the amplitude adjusting mechanism 7.

[0022] The dividing plate 8 is used to divide and organize the injection molding operation area. The upper mold is adapted to be installed on the dividing plate 8. In order to achieve multi-directional precise adjustment, the top of the support frame 1 is slidably equipped with a horizontal moving mechanism 2. The horizontal moving mechanism 2 is connected to a vertical moving mechanism 3. The two work together to achieve full-range position adjustment in the horizontal direction. The vertical moving mechanism 3 is equipped with a height adjustment mechanism 4 to adapt to the alignment requirements of molds of different heights. The bottom of the height adjustment mechanism 4 is equipped with a limit mechanism 6 to stably limit the mold after mold closing. At the same time, the bottom of the height adjustment mechanism 4 is connected to the side near the limit mechanism 6, and the amplitude adjustment mechanism 7 is equipped with a striking mechanism 9. The two work together to assist in completing the shaping operation after injection molding.

[0023] Reference Figure 1 and Figure 2The lateral moving mechanism 2 includes a moving frame 201, a first servo motor 202, and a moving block 203. Sliders are fixed on both sides of the moving frame 201. Slide grooves for sliding of the sliders are opened on opposite sides of the support frame 1. The bottom of the support frame 1 is connected to the first servo motor 202. The output end of the first servo motor 202 is connected to the first threaded rod 204. The outer surface of the first threaded rod 204 is fitted with a matching moving block 203. The moving block 203 is fixed to the bottom of the moving frame 201.

[0024] The lateral movement mechanism 2 constructs a horizontal guide channel through the nesting of sliders on both sides of the moving frame 201 and slide grooves on both sides of the support frame 1, ensuring that the moving frame 201 slides stably along a preset path under the drive of the servo motor. The first servo motor 202 serves as a power source, and its output end is axially connected to the first threaded rod 204, converting rotational motion into linear displacement of the moving block 203. This linear displacement is then achieved through the rigid connection between the moving block 203 and the bottom of the moving frame 201. The cooperation between the sliders and slide grooves not only restricts the direction of movement of the moving frame 201 but also disperses the force through surface contact, reducing swaying and offset during movement and improving the stability of lateral positioning.

[0025] Reference Figure 1 and Figure 3 The longitudinal moving mechanism 3 includes a second servo motor 301 and a second threaded rod 302. The second servo motor 301 is fixed on one side of the moving frame 201, and the second threaded rod 302 is rotatably connected to the inner wall of the moving frame 201. The output end of the second servo motor 301 is fixed to one end of the second threaded rod 302.

[0026] The longitudinal movement mechanism 3 is axially fixedly connected to the second threaded rod 302 via the second servo motor 301, establishing a power transmission path for longitudinal movement. The second servo motor 301 is fixed to one side of the moving frame 201, and its output end directly drives the second threaded rod 302 to rotate on the inner wall of the moving frame 201, converting the rotational motion into longitudinal linear displacement of the connecting frame 401. The engagement of the second threaded rod 302 with the pre-set internal thread on the inner wall of the connecting frame 401 ensures that the connecting frame 401 maintains vertical consistency when sliding on the inner wall of the moving frame 201. This mechanism, together with the lateral movement mechanism 2, forms a vertically intersecting positioning network, providing a precise two-dimensional coordinate positioning basis for the height adjustment mechanism 4 through coordinated lateral and longitudinal movements, supporting the subsequent precise operation of the limiting and striking mechanism 9 in the vertical direction.

[0027] Reference Figure 1 , Figure 3 and Figure 4The height adjustment mechanism 4 includes a connecting frame 401, a lifting block 403, a slide rail 404, and a third threaded rod 405. The connecting frame 401 has an internal thread that matches the second threaded rod 302. A third drive motor 402 is connected to the top of the connecting frame 401. The third threaded rod 405 is rotatably connected to one side of the connecting frame 401. The output end of the third drive motor 402 is fixed to the top of the third threaded rod 405. The lifting block 403 is sleeved on the outer surface of the third threaded rod 405. The slide rail 404 is symmetrically fixed on the inner sidewall of the connecting frame 401. A groove for sliding on the slide rail 404 is provided on one side of the lifting block 403.

[0028] The height adjustment mechanism 4 uses the connecting frame 401 as its main frame. Its internal thread engages with the second threaded rod 302 of the longitudinal moving mechanism 3, achieving synchronous vertical lifting under the action of longitudinal driving force. The third drive motor 402 is fixed to the top of the connecting frame 401 and directly drives the third threaded rod 405 to rotate through axial transmission, converting the rotational motion into linear displacement of the lifting block 403. The sliding grooves on both sides of the lifting block 403 slide in conjunction with the inner slide rail 404 of the connecting frame 401, forming a vertical guiding constraint to ensure no swaying or jamming during lifting, thus improving the stability of height adjustment.

[0029] Reference Figure 1 and Figures 3-6 The limiting mechanism 6 includes a fourth servo motor 5, a hexagonal sleeve 501, a connecting plate 601, an electric telescopic rod 602, and a limiting bolt 603. The fourth servo motor 5 is connected to one side wall of the lifting block 403. The output end of the fourth servo motor 5 is connected to the hexagonal sleeve 501. The two ends of the connecting plate 601 are slidably connected to the inner wall of the support frame 1. Grooves for sliding of the connecting plate 601 are provided on both sides of the inner wall of the support frame 1. One side of the connecting plate 601 is longitudinally slidably connected to the bottom of the connecting frame 401. A sliding groove for sliding on the bottom of the connecting frame 401 is provided on the connecting plate 601.

[0030] The connecting plate 601 has through holes evenly distributed for sliding of the hexagonal sleeve 501. The top of the hexagonal sleeve 501 is fitted with a baffle 605. Several electric telescopic rods 602 are evenly distributed and fixed on one side of the connecting plate 601. The output end of the electric telescopic rod 602 is connected to a limit frame 604. The limit frame 604 is adapted to the outer surface of the limit bolt 603.

[0031] The limiting mechanism 6 drives the hexagonal sleeve 501 to rotate via the fourth servo motor 5, enabling the limiting bolt 603 to be quickly inserted and positioned into the upper mold. The connecting plate 601, serving as an intermediate transition structure, slides with the grooves on the inner wall of the support frame 1 at both ends and slides longitudinally with the bottom groove of the connecting frame 401, forming a dual guide path to ensure stable movement of the limiting mechanism 6 in both vertical and horizontal directions. The design of the top baffle 605 of the hexagonal sleeve 501 effectively limits axial movement during rotation, improving the accuracy of the insertion of the limiting bolt 603. The electric telescopic rod 602 drives the synchronous movement of the limiting frame 604, forming a composite limiting structure with the limiting bolt 603. This ensures locking strength during insertion while also enabling rapid unlocking through the lifting function of the limiting frame 604, allowing for flexible switching between limiting and releasing.

[0032] Reference Figure 1 , Figure 3 and Figure 7-9 The amplitude adjustment mechanism 7 includes a limit frame 701, a fifth servo motor 702, a sliding rod 703, a fourth threaded rod 704, a sliding plate 705, a hydraulic telescopic cylinder 706, a threaded fixing ring 707, a gear 708, a transmission belt 709, a rotating wheel 7010, and a rotating plate 7011. The limit frame 701 is connected to one side of the connecting plate 601. Several sliding rods 703 are fixed between the limit frames 701. The sliding plate 705 has a limit hole for sliding on the sliding rods 703. The hydraulic telescopic cylinder 706 is rotatably connected to the sliding plate 705. The output end of the hydraulic telescopic cylinder 706 is rotatably connected to one side of the rotating plate 7011. One end of the rotating plate 7011 is rotatably connected to one side wall of the sliding plate 705. The fourth threaded rod 704 is rotatably connected to the limit frame 701. The fifth servo motor 702 is fixed to one side of the limit frame 701. The output end of the fifth servo motor 702 drives the fourth threaded rod 704 to rotate. The inner wall of the threaded retaining ring 707 is provided with an internal thread that matches the fourth threaded rod 704. One side of the threaded retaining ring 707 is fastened by bolts. The threaded retaining ring 707 is sleeved on the fourth threaded rod 704. The outer surface of the other side of the threaded retaining ring 707 is fixedly connected to the inner wall of the gear 708. The rotating wheel 7010 is rotatably connected to one side wall of the rotating plate 7011. The outer surfaces of the gear 708 and the rotating wheel 7010 are fitted with a transmission belt 709. The striking mechanism 9 includes a striking cylinder 901, a rotating shaft 902, an eccentric wheel 903, and a placement frame 904. One side of the placement frame 904 is fixedly connected to the other side of the rotating plate 7011. The striking cylinder 901 is rotatably connected to the inner wall of the placement frame 904. The rotating shaft 902 is rotatably connected inside the striking cylinder 901. The eccentric wheel 903 is fixedly fixed to the outer surface of the rotating shaft 902. One end of the rotating shaft 902 is fixedly connected to one side of the rotating wheel 7010.

[0033] The amplitude adjustment mechanism 7 uses the limiting frame 701 as a base. A horizontal movement channel is constructed through the cooperation of the sliding rod 703 and the limiting hole of the sliding plate 705. Driven by the hydraulic telescopic cylinder 706, the sliding plate 705 slides along the sliding rod 703, achieving the front-to-back position adjustment of the striking mechanism 9. The fifth servo motor 702 drives the fourth threaded rod 704 to rotate. The threaded fixing ring 707 engages with the fourth threaded rod 704 through its internal thread. During rotation, it drives the gear 708 to rotate synchronously. Power is transmitted to the rotating wheel 7010 via the transmission belt 709, and finally, the eccentric wheel 903 is driven to rotate via the rotating shaft 902. The rotating plate 7011 serves as a connecting carrier, with one end rotatably connected to the sliding plate 705, and the other end deflected at an angle through the extension and retraction of the hydraulic telescopic cylinder 706. This allows the striking cylinder 901 to adjust the striking direction according to the cavity structure, forming a multi-angle composite striking mode.

[0034] The striking mechanism 9 is fixedly connected to the rotating plate 7011 via the placement frame 904, converting the deflection motion of the rotating plate 7011 into the posture adjustment of the striking cylinder 901. The eccentric wheel 903, fixed to the outer surface of the rotating shaft 902, generates centrifugal force during rotation, driving the striking cylinder 901 to rotate within the placement frame 904, forming a composite action of high-frequency vibration and rotational striking. Simultaneously, the deflection function of the rotating plate 7011 ensures precise matching between the striking direction and the cavity structure, improving the consistency of the injection molded part's molding quality.

[0035] The working principle of the positioning and guiding device for injection molding of automotive plastic parts of the present invention is as follows: The lower mold is fixed within the cavity enclosed by the support frame partition plate. After injection molding material is injected, the upper mold is placed in the lower mold closing position to complete assembly. When extrusion or hammering is required for molding, each moving mechanism is activated to achieve precise alignment. The first servo motor 202 is started to drive the first threaded rod 204 to rotate. Through the threaded engagement, the moving block 203 and the moving frame 201 are moved laterally along the slide groove of the support frame to complete the lateral alignment.

[0036] The second servo motor 301 is started to drive the second threaded rod 302 to rotate. Through the threaded engagement, the connecting frame 401 and subsequent mechanisms move longitudinally along the moving frame to complete the longitudinal alignment.

[0037] The third drive motor 402 is started to drive the third threaded rod 405 to rotate. Under the guidance of the slide rail 404, the lifting block 403 and subsequent mechanisms move up and down, so that the limiting and striking components are aligned with the target position of the upper mold.

[0038] Note: When the connecting frame moves laterally, it drives the limit and amplitude adjustment mechanisms to move synchronously; when it moves longitudinally, it only slides on its own to ensure that the limit mechanism and the lower mold are in stable lateral position.

[0039] The fourth servo motor 5 is started to drive the hexagonal sleeve 501 to rotate, causing it to be fitted with the limit bolt 603; the electric telescopic rod 602 retracts to avoid the movement, and the hexagonal sleeve drives the limit bolt to screw into the threaded hole of the upper mold for initial locking; then the electric telescopic rod extends, and the limit frame 604 is fitted with the limit bolt for auxiliary positioning to ensure stable extrusion of the upper mold.

[0040] After the operation is completed, the fourth servo motor 5 reverses and drives the limit bolt 603 to disengage from the threaded hole. The electric telescopic rod 602 extends to lift the limit bolt 603 from the limit frame, thus completing the unlocking.

[0041] Loosen the threaded retaining ring 707 bolt, push the sliding plate 705 along the sliding rod 703 to the target position, and tighten the bolt to lock it.

[0042] Start the hydraulic telescopic cylinder 706 to drive the rotating plate 7011 to rotate, and adjust the angle of the striking mechanism to align with the molding part.

[0043] The fifth servo motor 702 is started to drive the fourth threaded rod 704 to rotate. Through the threaded fixing ring 707, gear 708, and transmission belt 709, the rotating wheel 7010 and rotating shaft 902 are rotated. The rotation of the eccentric wheel 903 generates centrifugal force, causing the rotating shaft to vibrate at high frequency. At the same time, it drives the striking cylinder 901 to rotate, forming a compound striking action to fill the cavity and eliminate air bubbles.

[0044] It should be noted that, in actual implementation, the structure depicted in the accompanying drawings is not a fixed or unchanging embodiment. The components of the embodiments of the invention described and shown in these drawings can typically be arranged and designed in various different configurations. Furthermore, the accompanying drawings and abstract drawings are merely illustrative and do not represent the specific structure or actual quantity in a concrete implementation.

[0045] Unless otherwise defined, the technical or scientific terms used herein should be understood in their ordinary sense as understood by one of ordinary skill in the art to which this invention pertains. The use of terms such as "a" or "an" in this specification and claims does not necessarily indicate a limitation of quantity. Terms such as "comprising" or "including" mean that the element or component preceding the word encompasses the element or component listed following the word and its equivalents, without excluding other elements or components. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0046] The exemplary embodiments of the present invention have been described in detail above with reference to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the concept of the present invention, and various combinations can be made to the various technical features and structures proposed in the present invention without exceeding the protection scope of the present invention.

Claims

1. A positioning and guiding device for injection molding of automotive plastic parts, comprising a support frame (1), wherein a plurality of partition plates (8) are provided on the top of the support frame (1), and an upper mold is provided on the partition plates (8), characterized in that: The top of the support frame (1) is slidably provided with a horizontal moving mechanism (2), and a longitudinal moving mechanism (3) is drivenly connected to the horizontal moving mechanism (2). A height adjustment mechanism (4) is connected to the longitudinal moving mechanism (3). A limit mechanism (6) is connected to the bottom of the height adjustment mechanism (4). An amplitude adjustment mechanism (7) is connected to the side of the bottom of the height adjustment mechanism (4) near the limit mechanism (6). A striking mechanism (9) is connected to the amplitude adjustment mechanism (7).

2. The positioning and guiding device for injection molding of automotive plastic parts according to claim 1, characterized in that: The lateral moving mechanism (2) includes a moving frame (201), a first servo motor (202), and a moving block (203). The moving frame (201) has sliders fixed on both sides. The support frame (1) has grooves on opposite sides for the sliders to slide. The bottom of the support frame (1) is connected to the first servo motor (202). The output end of the first servo motor (202) is connected to a first threaded rod (204). The outer surface of the first threaded rod (204) is fitted with the matching moving block (203). The moving block (203) is fixed to the bottom of the moving frame (201).

3. The positioning and guiding device for injection molding of automotive plastic parts according to claim 2, characterized in that: The longitudinal moving mechanism (3) includes a second servo motor (301) and a second threaded rod (302). The second servo motor (301) is fixed to one side of the moving frame (201), and the second threaded rod (302) is rotatably connected to the inner wall of the moving frame (201). The output end of the second servo motor (301) is fixed to one end of the second threaded rod (302).

4. The positioning and guiding device for injection molding of automotive plastic parts according to claim 3, characterized in that: The height adjustment mechanism (4) includes a connecting frame (401), a lifting block (403), a slide rail (404), and a third threaded rod (405). The connecting frame (401) has an internal thread that is compatible with the second threaded rod (302). A third drive motor (402) is connected to the top of the connecting frame (401). The third threaded rod (405) is rotatably connected to one side of the connecting frame (401). The output end of the third drive motor (402) is fixed to the top of the third threaded rod (405). The lifting block (403) is sleeved on the outer surface of the third threaded rod (405). The slide rail (404) is symmetrically fixed to the inner sidewall of the connecting frame (401). A groove for sliding on the slide rail (404) is provided on one side of the lifting block (403).

5. The positioning and guiding device for injection molding of automotive plastic parts according to claim 4, characterized in that: The limiting mechanism (6) includes a fourth servo motor (5), a hexagonal sleeve (501), a connecting plate (601), an electric telescopic rod (602), and a limiting bolt (603). The fourth servo motor (5) is connected to one side wall of the lifting block (403). The output end of the fourth servo motor (5) is connected to the hexagonal sleeve (501). The two ends of the connecting plate (601) are slidably connected to the inner wall of the support frame (1). The inner wall of the support frame (1) has grooves on both sides for sliding of the connecting plate (601). One side of the connecting plate (601) is longitudinally slidably connected to the bottom of the connecting frame (401). The connecting plate (601) has a sliding groove on the bottom of the connecting frame (401) for sliding.

6. The positioning and guiding device for injection molding of automotive plastic parts according to claim 5, characterized in that: The connecting plate (601) is provided with through holes for sliding of the hexagonal sleeve (501). A baffle (605) is fitted on the top of the hexagonal sleeve (501). A plurality of electric telescopic rods (602) are evenly fixed on one side of the connecting plate (601). The output end of the electric telescopic rod (602) is connected to a limit frame (604). The limit frame (604) is adapted to the outer surface of the limit bolt (603).

7. The positioning and guiding device for injection molding of automotive plastic parts according to claim 5, characterized in that: The amplitude adjustment mechanism (7) includes a limiting frame (701), a fifth servo motor (702), a sliding rod (703), a fourth threaded rod (704), a sliding plate (705), a hydraulic telescopic cylinder (706), a threaded retaining ring (707), a gear (708), a transmission belt (709), a rotating wheel (7010), and a rotating plate (7011). The limiting frame (701) is connected to one side of the connecting plate (601), and a plurality of the sliding rods (703) are fixed between the limiting frames (701). The sliding plate (705) has a setting for adjusting the sliding rods (7010). 3) The upper sliding limit hole, the hydraulic telescopic cylinder (706) is rotatably connected to the sliding plate (705), the output end of the hydraulic telescopic cylinder (706) is rotatably connected to one side of the rotating plate (7011), one end of the rotating plate (7011) is rotatably connected to one side wall of the sliding plate (705), the fourth threaded rod (704) is rotatably connected to the limit frame (701), the fifth servo motor (702) is fixed to one side of the limit frame (701), and the output end of the fifth servo motor (702) drives the fourth threaded rod (704) to rotate.

8. The positioning and guiding device for injection molding of automotive plastic parts according to claim 7, characterized in that: The inner wall of the threaded retaining ring (707) is provided with an internal thread that is compatible with the fourth threaded rod (704). One side of the threaded retaining ring (707) is fastened by a bolt. The threaded retaining ring (707) is sleeved on the fourth threaded rod (704). The outer surface of the other side of the threaded retaining ring (707) is fixedly connected to the inner wall of the gear (708). The rotating wheel (7010) is rotatably connected to one side wall of the rotating plate (7011). The transmission belt (709) is sleeved on the outer surfaces of the gear (708) and the rotating wheel (7010).

9. The positioning and guiding device for injection molding of automotive plastic parts according to claim 8, characterized in that: The striking mechanism (9) includes a striking cylinder (901), a rotating shaft (902), an eccentric wheel (903), and a placement frame (904). One side of the placement frame (904) is fixedly connected to the other side of the rotating plate (7011). The striking cylinder (901) is rotatably connected to the inner wall of the placement frame (904). The rotating shaft (902) is rotatably connected inside the striking cylinder (901). The eccentric wheel (903) is fixed on the outer surface of the rotating shaft (902). One end of the rotating shaft (902) is fixedly connected to one side of the rotating wheel (7010).

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