Injection mold for automobile decoration panel

Abstract

The utility model provides an injection mold for an automobile decoration panel, and belongs to the technical field of automobile decoration part processing. The injection mold for the automobile decoration panel comprises an upper top plate, a mounting plate, an upper mold plate, a mold core, a lower mold plate, a vertical plate and a lower bottom plate, the lower mold plate is provided with a step and is provided with a sideslip demolding mechanism, the sideslip demolding mechanism comprises a translation core block, a side air cylinder and a supporting block fixed to the outer side of the lower mold plate, the side air cylinder is fixed to the supporting block, and the side air cylinder is fixed to the lower bottom plate. When the translation core block abuts against the step, a forming die cavity is formed between the translation core block and the die core, a forming groove is formed in the inner side face of the translation core block, and a telescopic rod of the side air cylinder is fixedly connected with the translation core block. The side sliding demolding mechanism is arranged, the translation core block is pulled to move outwards through a side air cylinder, the translation core block is easily pulled out of the automobile decoration panel, the upper mold is easier to move and demold, and a forming groove of the translation core block is separated from a connecting structure on the automobile decoration panel.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile decorative parts processing, and relates to an injection mold for an automobile decorative panel. Background Art

[0002] The side of the automobile decorative part is provided with a concave structure for connection. The existing mold structure will drive the inclined guide column when the upper mold is demoulded upward. The upward movement of the inclined guide column drives the side slider to move outward. Since the contact area between the upper mold and the automobile decorative part is large, and the side slider and the concave structure are separated at the same time, the automobile decorative part is easy to stick to the upper mold, which makes the decorative part require extra manpower, time and upper mold to complete separation, reducing the production efficiency of the mold. In addition, most of the existing molds use one mold with multiple cavities to improve production efficiency. If the side core pulling in each cavity is achieved by an inclined guide column, this not only increases the size of the mold, but also makes the mold structure complicated and the runner is not convenient to arrange. For this reason, the injection mold reduces the use of inclined guide columns, making the mold structure more compact and smaller. Utility Model Content

[0003] The purpose of the utility model is to address the above-mentioned problems in the existing technology and propose an injection mold for an automobile decorative panel. The mold is provided with a side sliding demoulding mechanism, which can easily pull the translational core block out of the automobile decorative panel by pulling the translational core block outward through a side cylinder, and the upper mold can be moved more easily and demoulded more easily, so that the molding groove of the translational core block is separated from the connecting structure on the automobile decorative panel.

[0004] The purpose of the utility model can be achieved through the following technical solutions: an injection mold for an automobile decorative panel, comprising an upper top plate, a mounting plate, an upper template, a mold core, a lower template, a vertical plate and a lower bottom plate, the upper template, the mounting plate and the upper top plate are fixed in sequence by bolts, and the lower template, the vertical plate and the lower bottom plate are fixed in sequence by bolts, characterized in that a mold groove for the mold core to be embedded is opened on the upper template, the mold core is fixed by a positioning column that passes through laterally, the lower template has a step, and the lower template is provided with a side-sliding demolding mechanism, the side-sliding demolding mechanism comprises a translation core block, a side cylinder, and a support block fixed to the outside of the lower template, the side cylinder is fixed on the support block, when the translation core block abuts against the step, a molding cavity is formed between the translation core block and the mold core, the inner side surface of the translation core block has a molding groove, and the telescopic rod of the side cylinder is fixedly connected to the translation core block.

[0005] Furthermore, guide slide grooves are provided on both sides of the translation core block, and two parallel L-shaped guide slide bars are fixed on the lower template, and one side of the guide slide bar is embedded in the guide slide groove.

[0006] Furthermore, a first ejection plate and a second ejection plate are provided between the two vertical plates, a guide slide column is fixed on the lower bottom plate, the upper end of the guide slide column is abutted against the lower template, and guide slide holes for the guide slide column to pass through are opened on the first ejection plate and the second ejection plate, and a plurality of ejection rods are fixed on the first ejection plate, and the ejection rods contact the molding cavity after passing through the lower template.

[0007] Furthermore, the outer side surface of the translation core block is an inclined outer slope, and the upper mold plate has an extrusion slope that can abut against the outer slope.

[0008] Furthermore, an injection hole is provided on the upper top plate, and an injection flow channel connecting the injection hole and the molding cavity is provided in the mounting plate and the upper mold plate.

[0009] Furthermore, unloading cylinders are fixed at both ends of the lower template, and the telescopic rods of the unloading cylinders are connected to the second ejecting plate.

[0010] The molding groove is used to mold the connecting structure that is laterally arranged inside the car decorative panel. Start the injection molding machine, close the upper and lower molds, inject the molten plastic raw material into the injection hole through the feeding pipe, and the plastic raw material enters each molding cavity along the injection flow channel. After cooling and shaping, the mold is opened. After the upper mold moves up, the side cylinder is started to pull out the translation core block, and finally the unloading cylinder drives the ejector rod to push up the car decorative panel, so that the car decorative panel is separated from the lower mold.

[0011] Compared with the prior art, the injection mold for the automobile decorative panel has the following advantages:

[0012] 1. It is equipped with a side sliding demoulding mechanism, which pulls the translation core block outward through the side cylinder, and easily pulls the translation core block out of the car decorative panel. The upper mold moves more easily and demoulds more easily, so that the molding groove of the translation core block is separated from the connecting structure on the car decorative panel.

[0013] 2. The translation core block has an outer bevel. When the mold is closed, the translation core block can be firmly pressed against the step through the extrusion bevel on the upper mold plate, thereby improving the positioning accuracy of the translation core block and making the quality of automobile decorative panel products higher.

[0014] 3. The internal structure of the mold becomes simpler and more compact, saving space. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional view of the injection mold of the automobile decorative panel.

[0016] Figure 2 It is a structural schematic diagram of the lower mold part of the injection mold of the automobile decorative panel.

[0017] Figure 3 It is a cross-sectional view of the lower mold part of the injection mold of the automobile decorative panel.

[0018] Figure 4 It is a three-dimensional side-sliding demoulding mechanism. Figure 1 .

[0019] Figure 5 It is a three-dimensional side-sliding demoulding mechanism. Figure 2 .

[0020] Figure 6 This is the product structure diagram of this automobile decorative panel.

[0021] In the figure, 1. upper top plate; 2. mounting plate; 3. upper template; 4. mold core; 5. lower template; 6. vertical plate; 7. lower bottom plate; 8. positioning column; 9. step; 10. translation core block; 11. side cylinder; 12. support block; 13. molding cavity; 14. molding groove; 15. guide groove; 16. guide slide; 17. first ejector plate; 18. second ejector plate; 19. guide slide column; 20. ejector rod; 21. outer slope; 22. extrusion slope; 23. unloading cylinder; 24. automobile decorative panel. DETAILED DESCRIPTION

[0022] 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.

[0023] like Figure 1-3 As shown, the injection mold of the automobile decorative panel 24 includes an upper top plate 1, a mounting plate 2, an upper template 3, a mold core 4, a lower template 5, a vertical plate 6 and a lower bottom plate 7. The upper template 3, the mounting plate 2 and the upper top plate 1 are fixed in sequence by bolts, and the lower template 5, the vertical plate 6 and the lower bottom plate 7 are fixed in sequence by bolts. It is characterized in that a mold groove for the mold core 4 to be embedded is opened on the upper template 3, and the mold core 4 is fixed by a positioning column 8 that passes through horizontally.

[0024] The upper top plate 1 is provided with an injection hole, and the mounting plate 2 and the upper mold plate 3 are provided with an injection flow channel connecting the injection hole and the molding cavity 13. The lower mold plate 5 is fixed with a discharge cylinder 23 at both ends, and the telescopic rod of the discharge cylinder 23 is connected to the second top plate 18.

[0025] A first ejection plate 17 and a second ejection plate 18 are provided between the two vertical plates 6. A guide slide column 19 is fixed on the lower base plate 7. The upper end of the guide slide column 19 abuts against the lower template 5. The first ejection plate 17 and the second ejection plate 18 are provided with guide slide holes for the guide slide column 19 to pass through. A plurality of ejection rods 20 are fixed on the first ejection plate 17. The ejection rods 20 penetrate the lower template 5 and contact the molding cavity 13.

[0026] like Figure 4-5As shown, the lower template 5 has a step 9, and the lower template 5 is provided with a side-sliding demolding mechanism, which includes a translation core block 10, a side cylinder 11, and a support block 12 fixed to the outside of the lower template 5, the side cylinder 11 is fixed on the support block 12, and when the translation core block 10 abuts against the step 9, a molding cavity 13 is formed between the translation core block 10 and the mold core 4, a molding groove 14 is opened on the inner side surface of the translation core block 10, and the telescopic rod of the side cylinder 11 is fixedly connected to the translation core block 10.

[0027] like Figure 6 As shown, the forming groove 14 is used to form a connecting structure disposed laterally inside the automobile decorative panel 24 .

[0028] The translation core block 10 has guide grooves 15 on both sides, and two parallel L-shaped guide strips 16 are fixed on the lower mold plate 5, and one side of the guide strip 16 is embedded in the guide groove 15. The outer side surface of the translation core block 10 is an inclined outer bevel 21, and the upper mold plate 3 has an extrusion bevel 22 that can abut against the outer bevel 21.

[0029] Injection molding process: start the injection molding machine, close the upper mold plate 3 and the lower mold plate 5, inject molten plastic raw material into the injection hole through the feeding pipe, and the plastic raw material enters each molding cavity 13 along the injection flow channel. After cooling and shaping, the mold is opened. After the upper mold plate 3 moves up, the side cylinder 11 is started to pull out the translation core block 10, and finally the unloading cylinder 23 drives the ejector rod 20 to push up the automobile decorative panel 24, so that the automobile decorative panel 24 is separated from the lower mold plate 5.

[0030] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An injection mold for an automobile decorative panel, comprising an upper top plate, a mounting plate, an upper mold plate, a mold core, a lower mold plate, a vertical plate and a lower bottom plate, wherein the upper mold plate, the mounting plate and the upper top plate are fixed in sequence by bolts, and the lower mold plate, the vertical plate and the lower bottom plate are fixed in sequence by bolts, characterized in that: The upper template is provided with a mold groove for the mold core to be embedded, and the mold core is fixed by a positioning column that passes through horizontally. The lower template is provided with a step, and a side-sliding demolding mechanism is provided on the lower template. The side-sliding demolding mechanism includes a translation core block, a side cylinder, and a support block fixed to the outer side of the lower template. The side cylinder is fixed on the support block. When the translation core block abuts against the step, a molding cavity is formed between the translation core block and the mold core. A molding groove is provided on the inner side surface of the translation core block, and the telescopic rod of the side cylinder is fixedly connected to the translation core block.

2. The injection mold for an automobile decorative panel according to claim 1, characterized in that: Guide slide grooves are provided on both sides of the translation core block, and two parallel L-shaped guide slide bars are fixed on the lower template, and one side of the guide slide bar is embedded in the guide slide groove.

3. The injection mold for an automobile decorative panel according to claim 1, characterized in that: A first ejection plate and a second ejection plate are provided between the two vertical plates, a guide slide column is fixed on the lower bottom plate, the upper end of the guide slide column is against the lower template, and guide slide holes for the guide slide column to pass through are opened on the first ejection plate and the second ejection plate, and a plurality of ejection rods are fixed on the first ejection plate, and the ejection rods contact the molding cavity after passing through the lower template.

4. The injection mold for an automobile decorative panel according to claim 1, characterized in that: The outer side surface of the translation core block is an inclined outer slope, and the upper mold plate is provided with an extrusion slope that can abut against the outer slope.

5. The injection mold for an automobile decorative panel according to claim 1, characterized in that: The upper top plate is provided with an injection hole, and the mounting plate and the upper mold plate are provided with an injection flow channel communicating with the injection hole and the molding cavity.

6. The injection mold for an automobile decorative panel according to claim 1, characterized in that: Discharge cylinders are fixed at both ends of the lower template, and the telescopic rods of the discharge cylinders are connected to the second ejecting plate.

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