Splicing type sliding block demolding mechanism for injection mold of lower protective plate body of automobile body

Abstract

The utility model belongs to the technical field of molds, and particularly relates to a splicing type sliding block demolding mechanism for an injection mold of a lower protective plate body of an automobile body. The utility model discloses an automobile body lower guard plate body forming template. In the injection molding process, the lower protection plate body rear forming part is used for assisting in forming the rear structure of the lower protection plate body of the automobile body, the splicing type sliding block demolding auxiliary forming assembly is used for assisting in forming the structures of the front side end and the front middle end of the lower protection plate body of the automobile body, and the overall forming structure is of a splicing type structure; after injection molding is completed, a molded plastic part can be demolded by moving the lower guard plate body rear molding part and the splicing type sliding block demolding auxiliary molding assembly, complete ejection is achieved in cooperation with the straight ejector rod, the ejection area is large and comprehensive, the situation of incomplete demolding is avoided, and the structure is compact and reasonable.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds and relates to a spliced ​​slider demoulding mechanism for an injection mold of a lower guard plate body of an automobile body. Background Art

[0002] The underbody guard plate of a car is generally used to be fixed on the chassis of the car to protect the chassis and reduce the damage caused by the impact of gravel and foreign objects. It is usually made of plastic material, which will not add too much weight on the one hand, and reduce the harm when it falls off on the other hand. At present, the underbody guard plate of a car is generally manufactured by injection molds. During injection molding, an integrated molding template is usually used. It is easy to have incomplete demolding during demolding. For the underbody guard plate of a car with a large area and a long length, the demolding accuracy is not high. Therefore, it is urgent to design a splicing slider demolding mechanism for the injection mold of the underbody guard plate of the car body that can overcome the above defects.

[0003] In order to overcome the shortcomings of the prior art, people have proposed various solutions through continuous exploration. For example, a Chinese patent discloses a demolding device for the production of automobile body underguard panels [application number: 202222329459.9], which includes an upper mold and a lower mold. The lower mold is used to place the semi-finished product of the underguard panel of the automobile body. The upper mold presses the semi-finished product of the underguard panel of the automobile body on the lower mold into shape. The bottom wall of the upper mold is partially convex downward to form a boss. The peripheral edge of the boss is provided with a plurality of first accommodating holes on the bottom wall that expand outward to the sides of the boss. These first accommodating holes are evenly distributed around the boss, and each first accommodating hole accommodates a first push block and a first pneumatic rod. Utility Model Content

[0004] The utility model aims to solve the above problems and provides a splicing type slider demoulding mechanism for the injection mold of the lower guard plate body of an automobile body.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A spliced ​​slider demoulding mechanism for an injection mold of an automobile body lower guard plate body, comprising an automobile body lower guard plate body forming template, wherein the automobile body lower guard plate body forming template is provided with a lower guard plate body rear forming piece and a spliced ​​slider demoulding auxiliary forming component, the lower guard plate body rear forming piece and the spliced ​​slider demoulding auxiliary forming component are abutted and matched, the lower guard plate body rear forming piece and the spliced ​​slider demoulding auxiliary forming component are respectively slidably matched with the automobile body lower guard plate body forming template, the automobile body lower guard plate body forming template is provided with a clamping piece, and the lower guard plate body rear forming piece and the spliced ​​slider demoulding auxiliary forming component are respectively staggered with the clamping piece.

[0007] In the above-mentioned splicing slider demoulding mechanism of the automobile body lower guard plate main body injection mold, the splicing slider demoulding auxiliary molding component includes a front side end splicing molding demoulding part and a front middle end splicing molding demoulding part arranged in the automobile body lower guard plate main body molding template, and the front side end splicing molding demoulding part and the front middle end splicing molding demoulding part are abutted and matched.

[0008] In the above-mentioned automobile body lower guard plate body injection mold splicing slider demolding mechanism, the front side end splicing molding demolding part includes two front side end sliders arranged in the automobile body lower guard plate body molding template, and the front middle end splicing molding demolding part is located between the two adjacent front side end sliders.

[0009] In the above-mentioned automobile body lower guard plate body injection mold splicing slider demoulding mechanism, the front side end slider is provided with a lower guard plate front side groove forming part.

[0010] In the above-mentioned automobile body lower guard plate body injection mold splicing slider demolding mechanism, the lower guard plate front side groove forming part includes a lower guard plate front side groove forming chamber arranged in the front side end slider, and a through groove forming block is provided in the lower guard plate front side groove forming chamber.

[0011] In the above-mentioned automobile body lower guard plate body injection mold splicing slider demolding mechanism, the front middle end splicing molding demolding part includes a front middle end slider arranged in the automobile body lower guard plate body molding template, and the front middle end slider is tightly matched with the two front side end sliders.

[0012] In the above-mentioned automobile body lower guard plate body injection mold splicing slider demolding mechanism, the lower guard plate body rear molding part includes a rear molding slider arranged in the automobile body lower guard plate body molding template, and the horizontal height of the rear molding slider is higher than the horizontal height of the front middle end slider and the two front side end sliders.

[0013] In the above-mentioned automobile body lower guard plate injection mold splicing slider demoulding mechanism, two connecting sliders are provided between the rear molding slider and the front side end slider, one end of the connecting slider is tightly matched with the rear molding slider, and the other end is tightly matched with the front side end slider.

[0014] In the above-mentioned automobile body lower guard plate body injection mold splicing slider demoulding mechanism, the rear molding slider, the rear molding slider, the front middle end slider and the two front side end sliders are all provided with through-holes for ejection.

[0015] In the above-mentioned automobile body lower guard plate body injection mold splicing slider demolding mechanism, the mold clamping part includes four mold clamping protrusions arranged on the automobile body lower guard plate body molding template, and the four mold clamping protrusions are distributed in a rectangular array along the center point of the automobile body lower guard plate body molding template.

[0016] Compared with the existing technology, the advantages of the utility model are:

[0017] 1. In the injection molding process of the utility model, the rear molding of the lower guard plate body is used to assist in molding the rear structure of the lower guard plate body of the automobile body, and the spliced ​​slider demoulding auxiliary molding component is used to assist in molding the front side end and front middle end structure of the lower guard plate body of the automobile body. The overall molding structure adopts a spliced ​​structure. After the injection molding is completed, the molded plastic part can be demoulded by moving the rear molding of the lower guard plate body and the spliced ​​slider demoulding auxiliary molding component, and then the straight ejector rod is used to achieve complete ejection. The ejection area is large and comprehensive, avoiding the situation of incomplete demoulding, and the structure is compact and reasonable.

[0018] 2. The connecting slider in the present invention is used to connect the gap between the rear molding slider and the front side end slider, and at the same time fill the molding surface between the rear molding slider and the front side end slider.

[0019] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model.

[0021] Figure 2 It is a structural schematic diagram of the utility model in another direction.

[0022] Figure 3 It is a partial structural schematic diagram of the utility model.

[0023] Figure 4 It is a partial structural schematic diagram of the utility model in another direction.

[0024] In the figure: automobile body lower guard plate main body forming template 1, lower guard plate main body rear forming part 2, spliced ​​slider demoulding auxiliary forming component 3, mold clamping part 4, front side end splicing molding demoulding part 5, front middle end splicing molding demoulding part 6, front side end slider 7, lower guard plate front side groove molding part 8, lower guard plate front side groove molding chamber 9, through groove molding block 10, front middle end slider 11, rear molding slider 12, connecting slider 13, and mold clamping protrusion 14. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings.

[0026] like Figure 1-4 As shown, a spliced ​​slider demoulding mechanism of an automobile body lower guard plate injection mold comprises an automobile body lower guard plate body forming template 1, wherein the automobile body lower guard plate body forming template 1 is provided with a lower guard plate body rear forming part 2 and a spliced ​​slider demoulding auxiliary forming component 3, wherein the lower guard plate body rear forming part 2 and the spliced ​​slider demoulding auxiliary forming component 3 are abutted and matched, wherein the lower guard plate body rear forming part 2 and the spliced ​​slider demoulding auxiliary forming component 3 are respectively slidably matched with the automobile body lower guard plate body forming template 1, wherein the automobile body lower guard plate body forming template 1 is provided with a clamping part 4, wherein the lower guard plate body rear forming part 2 and the spliced ​​slider demoulding auxiliary forming component 3 are respectively staggered with the clamping part 4.

[0027] In this embodiment, the mold clamping part 4 is used to play the role of mold clamping and positioning. During the injection molding process, the rear molding part 2 of the lower guard plate body is used to assist in molding the rear structure of the lower guard plate body of the automobile body. The spliced ​​slider demoulding auxiliary molding component 3 is used to assist in molding the front side end and front middle end structure of the lower guard plate body of the automobile body. The overall molding structure adopts a spliced ​​structure. After the injection molding is completed, the molded plastic part can be demoulded by moving the rear molding part 2 of the lower guard plate body and the spliced ​​slider demoulding auxiliary molding component 3, and then the straight ejector rod can be used to achieve complete ejection. The ejection area is large and comprehensive, which avoids incomplete demoulding and has a compact and reasonable structure.

[0028] Combination Figure 1-4 As shown, the spliced ​​slider demoulding auxiliary molding component 3 includes a front side splicing molding demoulding part 5 and a front middle end splicing molding demoulding part 6 arranged in the automobile body lower guard plate main body molding template 1, and the front side end splicing molding demoulding part 5 and the front middle end splicing molding demoulding part 6 are abutted and matched.

[0029] Specifically, during the injection molding process, the front side end splicing molding demolding part 5 and the front middle end splicing molding demolding part 6 are used to assist in molding the front side end and front middle end structure of the lower guard plate body of the automobile body. The overall molding structure adopts a splicing structure. After the injection molding is completed, the molded plastic part can be demolded by moving the rear molding part 2 of the lower guard plate body, the front side end splicing molding demolding part 5 and the front middle end splicing molding demolding part 6, and then cooperate with the straight ejector rod to achieve complete ejection. The ejection area is large and comprehensive, which avoids incomplete demolding and has a compact and reasonable structure.

[0030] The front side end splicing and molding demoulding part 5 includes two front side end sliders 7 arranged in the automobile body lower guard plate main body molding template 1, and the front middle end splicing and molding demoulding part 6 is located between two adjacent front side end sliders 7.

[0031] In this embodiment, the two front side end sliders 7 are used to assist in molding the front side end structure of the lower guard plate body of the automobile body. After the injection molding is completed, the front side end sliders 7 can slide to assist in demoulding at the corresponding position.

[0032] Combination Figure 2 , Figure 3 As shown, the front side end slider 7 is provided with a lower guard plate front side groove forming portion 8.

[0033] In this embodiment, the groove forming portion 8 on the front side of the lower guard plate can simultaneously form the groove structure on the front side of the lower guard plate during the injection molding process, without the need for secondary processing, thereby shortening the process and reducing production costs.

[0034] The lower guard plate front side groove forming portion 8 includes a lower guard plate front side groove forming chamber 9 arranged in the front side end slider 7, and a through groove forming block 10 is provided in the lower guard plate front side groove forming chamber 9.

[0035] In this embodiment, the groove molding chamber 9 on the front side of the lower guard plate can simultaneously mold the groove structure on the front side of the lower guard plate during the injection molding process, and the through-groove molding block 10 is used to assist in molding the gap structure therein, without the need for secondary processing, shortening the process and reducing production costs.

[0036] Combination Figure 3 As shown, the front middle end splicing molding demoulding part 6 includes a front middle end slider 11 arranged in the automobile body lower guard plate main body molding template 1, and the front middle end slider 11 is tightly matched with the two front side end sliders 7.

[0037] In this embodiment, the front middle end slider 11 is used to assist in molding the front middle end structure of the lower guard plate body of the automobile body. After the injection molding is completed, the front middle end slider 11 can slide to assist in demolding at the corresponding position.

[0038] The rear molding part 2 of the lower guard plate body includes a rear molding slider 12 arranged in the lower guard plate body molding template 1 of the automobile body. The horizontal height of the rear molding slider 12 is higher than the horizontal heights of the front middle end slider 11 and the two front side end sliders 7.

[0039] In this embodiment, the rear molding slider 12 is used to assist in molding the rear structure of the lower guard plate body of the automobile body. The horizontal height of the rear molding slider 12 is higher than the horizontal heights of the front middle end slider 11 and the two front side end sliders 7, and is adapted to the required structural shape. After the injection molding is completed, the rear molding slider 12 can slide to assist in demolding at the corresponding position.

[0040] Combination Figure 1-4As shown, two connecting sliders 13 are provided between the rear forming slider 12 and the front side end slider 7 , and one end of the connecting slider 13 is tightly matched with the rear forming slider 12 , and the other end is tightly matched with the front side end slider 7 .

[0041] In this embodiment, the connecting slider 13 is used to connect the gap between the rear molding slider 12 and the front end slider 7 , and at the same time fill the molding surface between the rear molding slider 12 and the front end slider 7 .

[0042] Combination Figure 1-4 As shown, the rear forming slider 12, the rear forming slider 12, the front middle end slider 11 and the two front side end sliders 7 are all provided with through-holes for ejection.

[0043] In this embodiment, during the ejection process, the ejection rod cooperates with the ejection through hole to achieve complete ejection, and the ejection area is large and comprehensive, avoiding incomplete demoulding, and the structure is compact and reasonable.

[0044] Combination Figure 1-2 As shown, the mold clamping part 4 includes four mold clamping protrusions 14 arranged on the automobile body lower guard plate body forming template 1, and the four mold clamping protrusions 14 are distributed in a rectangular array along the center point of the automobile body lower guard plate body forming template 1.

[0045] In this embodiment, the four mold clamping protrusions 14 are used to perform mold clamping alignment to ensure mold clamping accuracy.

[0046] The working principle of the utility model is:

[0047] The four mold-closing protrusions 14 are used to play the role of mold-closing alignment to ensure the accuracy of mold-closing. During the injection molding process, the front side end slider 7 and the front middle end slider 11 are used to assist in molding the front side end and front middle end structure of the lower guard plate body of the automobile body. The overall molding structure adopts a splicing structure. After the injection molding is completed, the molded plastic part can be demoulded by moving the rear molding part 2 of the lower guard plate body, the front side end slider 7 and the front middle end slider 11, and then the straight ejector rod is used to achieve complete ejection. The ejection area is large and comprehensive, avoiding the situation of incomplete demoulding. The structure is compact and reasonable.

[0048] The lower guard plate front side groove forming part 8 can simultaneously form the lower guard plate front side groove structure during the injection molding process, without the need for secondary processing, shortening the process and reducing the production cost. The lower guard plate front side groove forming chamber 9 can simultaneously form the lower guard plate front side groove structure during the injection molding process, and the through groove forming block 10 is used to assist in forming the gap structure therein, without the need for secondary processing, shortening the process and reducing the production cost.

[0049] The rear molding slider 12 is used to assist in molding the rear structure of the lower guard plate of the automobile body. The horizontal height of the rear molding slider 12 is higher than the horizontal height of the front middle end slider 11 and the two front side end sliders 7, and is adapted to the required structural shape. After the injection molding is completed, the rear molding slider 12 can slide to assist in demoulding at the corresponding position.

[0050] The connecting slider 13 is used to connect the gap between the rear molding slider 12 and the front end slider 7, and fill the molding surface between the rear molding slider 12 and the front end slider 7.

[0051] During the ejection process, the ejector rod cooperates with the ejection through hole to achieve complete ejection. The ejection area is large and comprehensive, avoiding incomplete demoulding. The structure is compact and reasonable.

[0052] 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 without departing from the spirit of the present invention.

[0053] Although this article uses more terms such as automobile body lower guard plate body forming template 1, lower guard plate body rear forming part 2, splicing slider demoulding auxiliary forming component 3, mold clamping part 4, front side end splicing molding demoulding part 5, front middle end splicing molding demoulding part 6, front side end slider 7, lower guard plate front side groove forming part 8, lower guard plate front side groove forming chamber 9, through groove forming block 10, front middle end slider 11, rear forming slider 12, connecting slider 13, mold clamping protrusion 14, etc., it does not exclude the possibility of using other terms. The use of these terms is only to more conveniently describe and explain the essence of the utility model, and interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A spliced ​​slider demoulding mechanism for an injection mold of an automobile body lower guard plate body, comprising an automobile body lower guard plate body forming template (1), characterized in that: The automobile body lower guard plate body forming template (1) is provided with a lower guard plate body rear forming piece (2) and a spliced ​​slider demoulding auxiliary forming component (3); the lower guard plate body rear forming piece (2) and the spliced ​​slider demoulding auxiliary forming component (3) are abutted and matched with each other; the lower guard plate body rear forming piece (2) and the spliced ​​slider demoulding auxiliary forming component (3) are respectively slidably matched with the automobile body lower guard plate body forming template (1); the automobile body lower guard plate body forming template (1) is provided with a clamping piece (4); the lower guard plate body rear forming piece (2) and the spliced ​​slider demoulding auxiliary forming component (3) are respectively staggered with the clamping piece (4).

2. The automobile body lower guard plate body injection mold splicing slider demoulding mechanism according to claim 1, characterized in that: The spliced ​​slider demoulding auxiliary molding component (3) comprises a front side spliced ​​molding demoulding portion (5) and a front middle spliced ​​molding demoulding portion (6) arranged in a molding template (1) of a lower guard plate of an automobile body, wherein the front side spliced ​​molding demoulding portion (5) and the front middle spliced ​​molding demoulding portion (6) are abutted and matched with each other.

3. The automobile body lower guard plate body injection mold splicing slider demoulding mechanism according to claim 2, characterized in that: The front side end splicing and molding demoulding part (5) comprises two front side end sliders (7) arranged in the automobile body lower guard plate main body molding template (1), and the front middle end splicing and molding demoulding part (6) is located between two adjacent front side end sliders (7).

4. The automobile body lower guard plate body injection mold splicing slider demoulding mechanism according to claim 3, characterized in that: The front end slide block (7) is provided with a lower guard plate front side groove forming portion (8).

5. The automobile body lower guard plate body injection mold splicing slider demoulding mechanism according to claim 4, characterized in that: The lower guard plate front side groove forming part (8) comprises a lower guard plate front side groove forming chamber (9) arranged in the front side end slider (7), and a through groove forming block (10) is arranged in the lower guard plate front side groove forming chamber (9).

6. The automobile body lower guard plate body injection mold splicing slider demoulding mechanism according to claim 5, characterized in that: The front middle end splicing molding demoulding part (6) comprises a front middle end slider (11) arranged in the automobile body lower guard plate main body molding template (1), and the front middle end slider (11) is tightly matched with the two front side end sliders (7).

7. The automobile body lower guard plate body injection mold splicing slider demoulding mechanism according to claim 6, characterized in that: The rear molding part (2) of the lower guard plate body comprises a rear molding slider (12) arranged in the lower guard plate body molding template (1) of the automobile body, and the horizontal height of the rear molding slider (12) is higher than the horizontal height of the front middle end slider (11) and the two front side end sliders (7).

8. The automobile body lower guard plate body injection mold splicing slider demoulding mechanism according to claim 7, characterized in that: Two connecting sliders (13) are provided between the rear forming slider (12) and the front end slider (7); one end of the connecting slider (13) is tightly fitted with the rear forming slider (12), and the other end is tightly fitted with the front end slider (7).

9. The automobile body lower guard plate body injection mold splicing slider demoulding mechanism according to claim 8, characterized in that: The rear forming slider (12), the rear forming slider (12), the front middle slider (11) and the two front side sliders (7) are all provided with through-holes for ejection.

10. The automobile body lower guard plate body injection mold splicing slider demoulding mechanism according to claim 9, characterized in that: The mold clamping part (4) comprises four mold clamping protrusions (14) arranged on the automobile body lower guard plate body forming template (1), and the four mold clamping protrusions (14) are distributed in a rectangular array along the center point of the automobile body lower guard plate body forming template (1).

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