Automobile interior trim part forming mold capable of achieving rapid demolding

Abstract

The utility model provides a quick-demoulding forming die for an automobile interior trim part, and belongs to the technical field of automobile interior trim part manufacturing. The rapid demolding forming mold for the automotive upholstery comprises an upper mold plate, a lower mold plate, a mold core, a vertical plate, an ejector rod and a bottom plate, the edge of the lower end face of the ejector plate is connected with a vibration rod inserted into a mounting cavity, a vertically-arranged sleeve is fixed to the bottom of the mounting cavity, and an impact ball head capable of abutting against the vibration rod is fixed to the upper end of a telescopic rod. A swing arm is rotationally connected into the mounting cavity, the outer end of the swing arm is hinged to the linkage rod, an extrusion ball head is arranged at the inner end of the swing arm, a plurality of rings arranged at equal intervals are arranged at the upper end of the ejector rod in the length direction of the ejector rod, and when the ejector rod ascends or descends, the rings and the extrusion ball head extrude each other to drive the swing arm to swing. And the impact ball head at the upper end of the telescopic rod continuously impacts the vibration rod to drive the ejector plate to vibrate, so that vibration is generated between the automobile interior trim part and the lower mold cavity to loosen, and demolding is easier.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile interior decoration manufacturing, and relates to a forming die for automobile interior decoration with rapid demoulding. Background Art

[0002] Many automotive interior parts are manufactured using injection molding. Injection molded parts are in close contact with the mold within the mold cavity, making them difficult to eject using an ejector pin. Forcible ejection can easily cause deformation, breakage, and other adverse consequences. Therefore, a vibration mechanism is used to vibrate the part before demolding to loosen it and facilitate subsequent ejection. Utility Model Content

[0003] The purpose of the utility model is to address the above-mentioned problems in the existing technology and propose a molding die for automobile interior decoration parts with rapid demoulding. The impact ball head at the upper end of the telescopic rod continuously impacts the vibration rod, driving the ejector plate to vibrate, causing vibration between the automobile interior decoration parts and the lower mold cavity to loosen, making demoulding easier.

[0004] The purpose of the utility model can be achieved through the following technical solutions: a forming mold for automobile interior parts with rapid demoulding, comprising an upper template, a lower template, a mold core, a vertical plate, a ejector rod and a bottom plate, characterized in that an upper mold cavity is opened on the upper template, a lower mold cavity and an embedding groove are opened on the lower template, the mold core is fixed in the embedding groove, two vertical plates are respectively fixed on both sides of the lower template, the bottom plate is fixed at the lower end of the vertical plate, a mounting cavity is opened in the mold core, a makeshift groove is opened at the upper end of the mold core, an ejector plate is provided in the makeshift groove, a movable rod inserted into the mounting cavity is connected to the center of the lower end surface of the ejector plate, a support plate is fixed to the lower end of the movable rod, a large spring is sleeved on the movable rod, the upper end of the large spring abuts against the top wall of the mounting cavity, the lower end of the large spring abuts against the support plate, the edge of the lower end surface of the ejector plate is connected to the The vibrating rod has a vertically arranged sleeve fixed at the bottom of the mounting cavity, a telescopic rod sliding in the sleeve, an impact ball head that can abut against the vibrating rod is fixed to the upper end of the telescopic rod, a horizontally arranged linkage rod is provided in the middle of the telescopic rod, a small spring is sleeved on the telescopic rod, the upper end of the small spring abuts against the linkage rod, and the lower end of the small spring abuts against the sleeve, a swing arm is rotatably connected in the mounting cavity, the outer end of the swing arm is hinged to the linkage rod, the inner end of the swing arm has an extrusion ball head, the lower end of the ejecting rod is located between the vertical plates on both sides and is connected to the horizontal plate, the upper end of the ejecting rod extends into the mounting cavity, and the lower template and the mold core are provided with sliding holes for the ejecting rod to pass through. The upper end of the ejecting rod is provided with several equidistant rings along its length direction, and the rings are squeezed by the extrusion ball head when the ejecting rod rises or falls, driving the swing arm to swing.

[0005] Furthermore, a discharge hole is formed on the bottom plate through which the piston rod of the discharge cylinder passes. The piston rod is connected to the horizontal plate. After passing through the discharge hole, the piston rod abuts against the horizontal plate and the two are fixed together by bolts. The piston rod drives the horizontal plate and the ejector rod to move up and down.

[0006] Furthermore, the diameter of the lower end of the ejector rod is greater than the diameter of the upper end.

[0007] Furthermore, the ejector rod is located directly below the support plate.

[0008] Furthermore, a strip-shaped hole is formed at one end of the linkage rod, and a pin shaft is provided on the outer end of the swing arm and is inserted into the strip-shaped hole.

[0009] Furthermore, an injection needle tube communicating with the upper mold cavity is passed through the upper mold plate.

[0010] The injection molding machine drives the upper and lower mold plates together, combining the upper and lower mold cavities to form the molding cavity. Plastic material is injected into the molding cavity through the injection needle. After cooling and finalizing the desired shape, the mold is opened. The piston rod of the discharge cylinder moves upward, driving the ejector rod upward. During this upward movement, the first ring pushes the extrusion ball, causing the inner end of the swing arm to swing upward. Simultaneously, the outer end of the swing arm swings downward, driving the linkage rod and telescopic rod downward, compressing and shortening the small spring. After the extrusion ball passes the first ring, the small spring rebounds, pushing the telescopic rod upward suddenly. This causes the impact ball to strike the vibration rod, vibrating the ejector plate and the interior component, loosening the component and making it easier to release from the lower mold cavity. The ejector rod continues to rise, and the extrusion ball contacts the next ring, generating a second vibration, and the cycle repeats. After the extrusion ball passes the final ring, the upper end of the ejector rod contacts the support plate, compressing the large spring and pushing the ejector plate out of the clearance slot. The car interior parts are separated from the lower mold cavity. At this time, the car interior parts can be easily taken out, the ejector rod moves down, and the large spring rebounds, so that the ejector plate is re-embedded in the clearance groove.

[0011] Compared with the existing technology, the molding die of the automotive interior parts with rapid demoulding has the following advantages:

[0012] 1. Before the ejector plate is lifted, the impact ball head of the telescopic rod continuously strikes the vibration rod back and forth. Through the repeated impacts on the vibration rod, the ejector plate and the car interior parts vibrate together, causing loosening between the car interior parts and the mold core, and between the car interior parts and the lower mold plate. Then, the ejector rod can lift the ejector plate upward more easily and labor-savingly, which helps to quickly demold the car interior parts.

[0013] 2. All components of the vibration mechanism are located in the installation cavity and do not take up additional space. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a cross-sectional view of a molding die for a quick-release automotive interior trim part.

[0015] Figure 2 It is a structural diagram of the ejector rod.

[0016] Figure 3 It is a structural diagram of the swing arm.

[0017] Figure 4 This is a diagram of the coordination between the swing arm and the telescopic rod.

[0018] In the figure, 1. Upper template; 2. Lower template; 3. Mold core; 4. Vertical plate; 5. Ejector rod; 6. Bottom plate; 7. Mounting cavity; 8. Ejector plate; 9. Movable rod; 10. Support plate; 11. Large spring; 12. Vibration rod; 13. Sleeve; 14. Telescopic rod; 15. Impact ball head; 16. Linkage rod; 17. Small spring; 18. Swing arm; 19. Extrusion ball head; 20. Horizontal plate; 21. Ring; 22. Discharge hole; 23. Piston rod; 24. Injection needle; 25. Pin; 26. Strip hole. DETAILED DESCRIPTION

[0019] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0020] like Figure 1 As shown, the molding die for the automotive interior trim with rapid demolding comprises an upper mold plate 1, a lower mold plate 2, a mold core 3, a vertical plate 4, a ejector rod 5, and a bottom plate 6. The upper mold plate 1 is provided with an upper mold cavity, and an injection needle 24 is provided on the upper mold plate 1 to communicate with the upper mold cavity. The lower mold plate 2 is provided with a lower mold cavity and an embedding groove, the mold core 3 is fixed in the embedding groove, two vertical plates 4 are respectively fixed to both sides of the lower mold plate 2, and the bottom plate 6 is fixed to the lower end of the vertical plate 4. The mold core 3 is provided with a mounting cavity 7, and the upper end of the mold core 3 is provided with a clearance groove, and an ejector plate 8 is provided in the clearance groove. The center of the lower end surface of the ejector plate 8 is connected to a movable rod 9 inserted into the mounting cavity 7, and a support plate 10 is fixed to the lower end of the movable rod 9. A large spring 11 is sleeved on the movable rod 9, and the upper end of the large spring 11 abuts against the top wall of the mounting cavity 7, and the lower end of the large spring 11 abuts against the support plate 10.

[0021] The edge of the lower end surface of the ejector plate 8 is connected to a vibration rod 12 inserted into the installation cavity 7. A vertical sleeve 13 is fixed to the bottom of the installation cavity 7. A telescopic rod 14 is slidably provided in the sleeve 13. The upper end of the telescopic rod 14 is fixed with a collision ball head 15 that can abut against the vibration rod 12. The middle of the telescopic rod 14 has a horizontally arranged linkage rod 16. A small spring 17 is sleeved on the telescopic rod 14. The upper end of the small spring 17 abuts on the linkage rod 16, and the lower end of the small spring 17 abuts on the sleeve 13. The installation cavity 7 rotates It is connected to a swing arm 18, the outer end of the swing arm 18 is hinged to the linkage rod 16, the inner end of the swing arm 18 has an extrusion ball head 19, the lower end of the ejector rod 5 is located between the vertical plates 4 on both sides and is connected to a horizontal plate 20, the upper end of the ejector rod 5 extends into the installation cavity 7, and a sliding hole for the ejector rod 5 to pass through is opened on the lower template 2 and the mold core 3. The upper end of the ejector rod 5 is provided with several equidistantly arranged circular rings 21 along its length direction. When the ejector rod 5 rises or falls, the circular rings 21 are squeezed with the extrusion ball head 19 to drive the swing arm 18 to swing.

[0022] The bottom plate 6 is provided with a discharge hole 22 through which the piston rod 23 of the discharge cylinder passes. The piston rod 23 is connected to the horizontal plate 20. After passing through the discharge hole 22, the piston rod 23 abuts against the horizontal plate 20 and is fixed together by bolts. The piston rod 23 drives the horizontal plate 20 and the ejector rod 5 up and down.

[0023] The lower end diameter of the ejector rod 5 is larger than the upper end diameter, and the ejector rod 5 is located directly below the support plate 10. The lower end diameter of the ejector rod 5 and the outer diameter of the ring 21 can be matched with the slide hole, so that the ejector rod 5 can be lifted up and down without swinging.

[0024] One end of the linkage rod 16 has a strip hole 26, and the outer end of the swing arm 18 has a pin 25 inserted into the strip hole 26. The outer end of the swing arm 18 swings up and down, which can drive the linkage rod 16 to move downward steadily, thereby moving the telescopic rod 14 into the sleeve 13 and compressing the small spring 17.

[0025] The injection molding machine drives the upper mold plate 1 and lower mold plate 2 together, forming a molding cavity. Plastic material is injected into the molding cavity through the injection needle 24. After cooling and setting, the mold is opened. The piston rod 23 of the discharge cylinder moves upward, driving the ejector rod 5 upward. During this upward movement, the first circular ring 21 preferentially contacts the extrusion ball 19, pushing it upward. This causes the inner end of the swing arm 18 to swing upward. Simultaneously, the outer end of the swing arm 18 swings downward, driving the linkage rod 16 and telescopic rod 14 downward, compressing and shortening the small spring 17. After the extrusion ball 19 passes around the first circular ring 21, the small spring 17 rebounds, pushing the telescopic rod 14 upward suddenly. This causes the impact ball 15 to strike the vibration rod 12, vibrating the ejector plate 8 and the interior trim component. This loosens the component and makes it easier to release from the lower mold cavity. The ejector rod 5 continues to rise, and the extrusion ball contacts the next circular ring 21, generating a second vibration. This cycle repeats. When the ball 19 is squeezed around the last ring 21, the upper end of the ejector pin 5 abuts against the support plate 10, the large spring 11 is compressed, and the ejector plate 8 is pushed out of the clearance groove. The automotive interior component is now separated from the lower mold cavity and can be easily removed. The ejector pin 5 moves downward, and the large spring 11 rebounds, allowing the ejector plate 8 to re-enter the clearance groove.

[0026] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A molding die for automobile interior parts with rapid demoulding, comprising an upper mold plate, a lower mold plate, a mold core, a vertical plate, a ejector rod and a bottom plate, characterized in that: The upper mold plate is provided with an upper mold cavity, the lower mold plate is provided with a lower mold cavity and an embedding groove, the mold core is fixed in the embedding groove, the two vertical plates are respectively fixed on both sides of the lower mold plate, the bottom plate is fixed to the lower end of the vertical plate, the mold core is provided with a mounting cavity, the upper end of the mold core is provided with a makeshift groove, a top plate is provided in the makeshift groove, the center of the lower end surface of the top plate is connected to a movable rod inserted into the mounting cavity, a support plate is fixed to the lower end of the movable rod, a large spring is sleeved on the movable rod, the upper end of the large spring rests on the top wall of the mounting cavity, the lower end of the large spring rests on the support plate, the edge of the lower end surface of the top plate is connected to a vibration rod inserted into the mounting cavity, a vertically arranged sleeve is fixed to the bottom of the mounting cavity, a telescopic rod is provided for sliding in the sleeve, and the telescopic rod The upper end is fixed with an impact ball head that can abut against the vibration rod, and the middle part of the telescopic rod is provided with a horizontally arranged linkage rod. A small spring is sleeved on the telescopic rod, and the upper end of the small spring abuts against the linkage rod, and the lower end of the small spring abuts against the sleeve. A swing arm is rotatably connected in the installation cavity, and the outer end of the swing arm is hinged to the linkage rod, and the inner end of the swing arm is provided with an extrusion ball head. The lower end of the ejector rod is located between the vertical plates on both sides and is connected to the horizontal plate. The upper end of the ejector rod extends into the installation cavity, and the lower template and the mold core are provided with sliding holes for the ejector rod to pass through. The upper end of the ejector rod is provided with several equidistant rings along its length direction. When the ejector rod rises or falls, the rings are squeezed by the extrusion ball head to drive the swing arm to swing.

2. The rapid demoulding mold for automobile interior trim parts according to claim 1, characterized in that: The bottom plate is provided with a discharge hole through which the piston rod of the discharge cylinder passes, and the piston rod is connected to the horizontal plate.

3. The rapid demoulding mold for automobile interior trim parts according to claim 1, characterized in that: The diameter of the lower end of the ejector rod is greater than the diameter of the upper end.

4. The rapid demoulding mold for automobile interior trim parts according to claim 1, characterized in that: The ejector rod is located directly below the support plate.

5. The rapid demoulding mold for automobile interior trim parts according to claim 1, characterized in that: One end of the linkage rod is provided with a strip hole, and the outer end of the swing arm is provided with a pin shaft which is inserted into the strip hole.

6. The rapid demoulding mold for automobile interior trim parts according to claim 1, characterized in that: An injection needle tube communicating with the upper mold cavity is passed through the upper mold plate.

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