WO2022127297A1

WO2022127297A1 - Z-shaped guide rail structure of thin-walled and highly rigid automobile bumper mold

Info

Publication number: WO2022127297A1
Application number: PCT/CN2021/122162
Authority: WO
Inventors: 任伟华
Original assignee: 浙江朔豪科技股份有限公司
Priority date: 2020-12-17
Filing date: 2021-09-30
Publication date: 2022-06-23
Also published as: CN215039969U

Abstract

The present utility model relates to the technical field of injection molding devices, and provided therein is a Z-shaped guide rail structure of a thin-walled and highly rigid automobile bumper mold. The guide rail structure solves problems such as low demolding efficiency of existing automobile bumper molds. The present Z-shaped guide rail structure of a thin-walled highly rigid automobile bumper mold for automobiles comprises a movable mold and a fixed mold. A molding cavity is formed between the movable mold and the fixed mold; an inner groove that is formed by recessing downward is provided on the fixed mold; a molding block is provided in the inner groove; a molding gap is formed between one end side part of the molding block and the inner groove, and a lower end of the molding block is movably connected to a pushing structure and may laterally slide along the pushing structure; a lower end of the pushing structure is connected to a moving plate; and when the moving plate drives the pushing structure to move close to the movable mold, and the molding block moves toward a side that is far from the molding gap. The present utility model has the advantage of high demolding efficiency.

Description

Z-shaped guide rail structure of thin-walled and high-rigidity automobile bumper mould

technical field

The utility model belongs to the technical field of injection molding equipment, and relates to a Z-shaped guide rail structure of a thin-walled and high-rigidity automobile bumper mold.

Background technique

Injection mold is a tool for producing plastic products, and it is also a tool for imparting complete structure and precise dimensions to plastic products. Injection molding is a processing method used in mass production of certain parts with complex shapes. The injection molding machine injects high pressure into the mold cavity, and after cooling and solidifying, a molded product is obtained. The injection mold consists of a movable mold and a fixed mold. The movable mold is installed on the moving template of the injection molding machine, and the fixed mold is installed on the fixed mold of the injection molding machine. On the template, the movable mold and the fixed mold are closed to form a gating system and a cavity during injection molding. When the mold is opened, the movable mold and the fixed mold are separated to take out the plastic products.

The structure of the automobile bumper is relatively complex. There are grooves and other structures inside the box body. It is necessary to use additional pellets to assist in the molding of the grooves of the automobile bumper. When the product is injection molded, the product needs to be removed from the mold. For demolding work, most of the existing molds for bumper product molding are designed with the core block and the ejector mechanism separately. Out, an additional process of demolding is required, resulting in reduced work efficiency.

Utility model content

The purpose of this utility model is to solve the above problems, to provide a Z-shaped guide rail structure of a thin-walled and high-rigidity automobile bumper mold.

In order to achieve the above object, the utility model adopts the following technical solutions:

The Z-shaped guide rail structure of the thin-walled high-rigidity automobile bumper mold includes a movable mold and a fixed mold, and a molding cavity is formed between the movable mold and the fixed mold. A recessed inner groove, a forming block is arranged in the inner groove, a forming gap is formed between one end side of the forming block and the inner groove, and the lower end of the forming block is movably connected to the push structure and can be moved along the The push structure slides laterally, and the lower end of the push structure is connected with a moving plate. When the moving plate drives the push structure to move close to the movable die, the forming block moves toward the side away from the forming gap.

In the above-mentioned Z-shaped guide rail structure of the thin-walled high-rigidity automobile bumper mold, the push-up structure includes a push-up rod and a push-up block, the lower end of the push-up rod is fixedly connected to the moving plate, and the push-up rod is fixed on the moving plate. The upper end of the push rod is connected to the lower end of the push block, and the forming block is slidably connected to the push block.

In the above-mentioned Z-shaped guide rail structure of the thin-walled and high-rigidity automobile bumper mold, the pushing block is provided with a laterally opened slideway, and the lower end of the forming block has a sliding block matched with the slideway.

In the above-mentioned Z-shaped guide rail structure of the thin-walled high-rigidity automobile bumper mold, the slideway has a lower sliding part and an upper contact part, and the combination of the lower sliding part and the upper contact part makes the cross-section of the slideway a convex character type.

In the above-mentioned Z-shaped guide rail structure of the thin-walled high-rigidity automobile bumper mold, the forming block includes an upper forming part and a lower connecting part connected to the upper forming part, and the upper forming part is accommodated in the inner groove , the sliding block is connected to the bottom end of the lower connecting part.

In the above-mentioned Z-shaped guide rail structure of the thin-walled high-rigidity automobile bumper mold, the fixed mold is provided with a perforation through which the lower connecting portion passes, and the perforation is obliquely opened on the fixed mold.

In the above-mentioned Z-shaped guide rail structure of the thin-walled and high-rigidity automobile bumper mold, the perforations are inclined outward from the side close to the lower connecting portion to the side away from the lower connecting portion.

In the above-mentioned Z-shaped guide rail structure of the thin-walled high-rigidity automobile bumper mold, the top end surface of the molding block has the same arc shape as the upper surface of the fixed mold.

In the above-mentioned Z-shaped guide rail structure of the thin-walled high-rigidity automobile bumper mold, the width of the lower connecting portion is greater than the width of the upper contact portion, and the bottom end surface of the lower connecting portion abuts on the top end surface of the push block .

In the above-mentioned Z-shaped guide rail structure of the thin-walled high-rigidity automobile bumper mold, the push block is provided with a fixing piece for connecting the push block and the push rod, and the slideway is provided with downward The recess is used for mounting holes for mounting the fixing piece, and the depth of the mounting hole is greater than the height of the fixing piece.

Compared with the existing technology, the advantages of the present utility model are:

1. The lower end of the push structure of the present invention is connected with a moving plate, and the upper end of the push structure is connected with a forming block for product forming. When the mobile plate drives the push structure to perform the push-out movement, the forming block moves toward the side away from the forming gap. When it is separated from the product, both the ejection process and the core pulling process are completed, which improves the overall processing efficiency of the mold.

2. The push block of the present utility model is provided with a slideway with a convex cross-section, and the slider at the lower end of the forming block is inserted into the slideway for sliding, so as to maintain the stability of sliding.

3. The depth of the mounting hole for installing the fixing piece in the present invention is greater than the height of the fixing piece. When the fixing piece is installed, the whole is accommodated in the mounting hole, which does not affect the normal sliding of the slider.

Other advantages, objects, and features of the present invention will be manifested in part by the description below, and in part will be understood by those skilled in the art from the study and practice of the present invention.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the present invention.

Figure 2 is a schematic diagram of the connection structure of the forming blocks in the present invention.

3 is a schematic diagram of the overall structure of the molding block in the present invention. Figure 4

It is the structure diagram of the push rod in the utility model.

In the figure, 1, movable mold; 2, fixed mold; 3, molding cavity; 4, inner groove; 5, molding block; 6, molding gap; 7, moving plate; 8, ejector rod; 9, ejector block; 10. Slideway; 11. Slider; 12. Lower sliding part; 13. Upper contact part; 14. Upper forming part; 15. Lower connecting part; 16. Perforation; 17. Fixing part; 18. Mounting hole; 19. push-up structure.

Detailed ways

The present utility model will be further described below in conjunction with the accompanying drawings.

As shown in Figure 1, the Z-shaped guide rail structure of the thin-walled high-rigidity automobile bumper mold includes a movable mold 1 and a fixed mold 2. A molding cavity 3 is formed between the movable mold 1 and the fixed mold 2, and the fixed mold 2 is provided with a The inner groove 4 formed by the downward depression, the inner groove 4 is provided with a forming block 5, a forming gap 6 is formed between one end side of the forming block 5 and the inner groove 4, and the lower end of the forming block 5 is movably connected to the push structure 19 And can slide laterally along the pushing structure 19 , the lower end of the pushing structure 19 is connected with the moving plate 7 , when the moving plate 7 drives the pushing structure 19 to move close to the movable die 1 , the forming block 5 moves toward the side away from the forming gap 6 . .

In this embodiment, the inner groove 4 on the fixed mold 2 cooperates with the forming block 5 to form the concave structure of the product. After the product is completely formed, the part needs to be demolded and core-pulled. The oil cylinder or air cylinder drives the moving plate 7 to move towards the side of the movable die 1, and uses the forming block 5 itself to push out the product. During the upward movement, the forming block 5 will move towards the side away from the forming gap 6 by itself. , out of the product, to achieve the purpose of core pulling.

In this embodiment, the push structure 19 includes a push rod 8 and a push block 9. The lower end of the push rod 8 is fixedly connected to the moving plate 7 to be linked with the moving plate 7, and the movement process is to push upward and upward. At the same time, the forming block 5 is slidably connected to the pushing block 9 .

Preferably, in order to improve the cooperation between the sliding of the forming block 5 and the push block 9, the push block 9 is provided with a laterally opened slideway 10, and the lower end of the forming block 5 has a slider 11 matched with the slideway 10. The slideway 10 has a lower sliding part 12 and an upper contact part 13. The combination of the lower sliding part 12 and the upper contact part 13 makes the cross section of the slideway 10 a convex shape. Sliding, in order to maintain the stability of the sliding.

In this embodiment, the forming block 5 includes an upper forming part 14 and a lower connecting part 15 connected to the upper forming part 14 , the upper forming part 14 is accommodated in the inner groove 4 , and the slider 11 is connected to the bottom of the lower connecting part 15 . At the end, the fixed mold 2 is provided with a through hole 16 for the lower connecting part 15 to pass through, and the through hole 16 is opened on the fixed mold 2 obliquely. One side is inclined and opened outwards toward the side away from the lower connecting portion 15 .

In order to prevent the product surface from being scratched and dented or raised when the forming block 5 pushes out the product, the top surface of the forming block 5 has the same arc shape as the upper surface of the fixed die 2 .

In this embodiment, the width of the lower connecting portion 15 is greater than the width of the upper contact portion 13 , the bottom surface of the lower connecting portion 15 abuts on the top surface of the push block 9 , and the sliding block 11 and the slideway 10 are matched with each other. The connection between the lower connection parts 15 and the push block 9 is more closely matched, so as to avoid the occurrence of movement gaps.

The ejector block 9 is provided with a fixing member 17 for connecting the ejector block 9 and the ejector rod 8. The fixing member 17 can be a bolt, and the slideway 10 is provided with a downwardly recessed mounting hole 18 for the installation of the fixing member 17. , the depth of the mounting hole 18 is greater than the height of the fixing piece 17 , when the fixing piece 17 is installed, the whole is accommodated in the mounting hole 18 and does not affect the normal sliding of the slider 11 .

The working principle of the utility model is as follows: after the fixed mold 2 is covered with the movable mold 1, the molding cavity 3 is mainly used for the molding of the overall shape of the product, and the inner groove 4 on the fixed mold 2 cooperates with the molding block 5 for the product concave structure. When the product is completely formed, the part needs to be demolded and core-pulled. At this time, the oil cylinder or the cylinder can drive the moving plate 7 to move toward the side of the movable mold 1, and use the forming block 5 itself to play a role in the product. During the upward movement, because the perforations 16 are arranged obliquely, when the ejector rod 8 moves vertically upward, the upper forming part 14 of the forming block 5 will move with the movement of the sliding block 11. Move to the side away from the forming gap 6 to be separated from the product to achieve the purpose of core pulling.

The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art of the present invention can make various modifications or supplements to the described specific embodiments or replace them in similar ways, but will not deviate from the spirit of the present invention or go beyond the appended claims the defined range.

Although the movable mold 1, the fixed mold 2, the molding cavity 3, the inner groove 4, the molding block 5, the molding gap 6, the moving plate 7, the ejector rod 8, the ejector block 9, the slideway 10, and the slider are mostly used in this paper 11. Terms such as the lower sliding part 12, the upper contact part 13, the upper molding part 14, the lower connecting part 15, the perforation 16, the fixing part 17, the mounting hole 18, the pushing structure 19, etc., but the possibility of using other terms is not excluded . These terms are only used to describe and explain the essence of the present invention more conveniently, and it is contrary to the spirit of the present invention to interpret them as any kind of additional limitations.

Claims

A Z-shaped guide rail structure of a thin-walled and high-rigidity automobile bumper mold includes a movable mold (1) and a fixed mold (2), and a molding cavity (3) is formed between the movable mold (1) and the fixed mold (2). , characterized in that the fixed die (2) is provided with an inner groove (4) which is formed by a downward depression, and a forming block (5) is arranged in the inner groove (4), and the forming block (5) ) A forming gap (6) is formed between the side of one end and the inner groove (4), the lower end of the forming block (5) is movably connected with a pushing structure (19), and the forming block (5) can move along the pushing structure (19) Lateral sliding, the lower end of the pushing structure (19) is connected with a moving plate (7), when the moving plate (7) drives the pushing structure (19) to move close to the movable die (1), The forming block (5) moves toward the side away from the forming gap (6).
The Z-shaped guide rail structure of the thin-walled high-rigidity automobile bumper mold according to claim 1, wherein the push-up structure (19) comprises a push-up rod (8) and a push-up block (9). The lower end of the push rod (8) is fixed on the moving plate (7), the upper end of the push rod (8) is connected to the lower end of the push block (9), and the forming block (5) is slidably connected on the push block (9).
The Z-shaped guide rail structure of the thin-walled high-rigidity automobile bumper mold according to claim 2, characterized in that, the pushing block (9) is provided with a laterally opened slideway (10), and the forming block The lower end of (5) has a slider (11) matched with the slideway (10).
The Z-shaped guide rail structure of the thin-walled high-rigidity automobile bumper mold according to claim 3, wherein the slideway (10) has a lower sliding part (12) and an upper contact part (13), and the The lower sliding part (12) is combined with the upper contact part (13) so that the cross section of the slideway (10) is convex.
The Z-shaped guide rail structure of the thin-walled high-rigidity automobile bumper mold according to claim 4, wherein the forming block (5) comprises an upper forming part (14) and is connected to the upper forming part (14). The lower connecting part (15), the upper forming part (14) is accommodated in the inner groove (4), and the sliding block (11) is connected to the bottom end of the lower connecting part (15).
The Z-shaped guide rail structure of a thin-walled and high-rigidity automobile bumper mold according to claim 5, wherein the fixed mold (2) is provided with a perforation (16) through which the lower connecting portion (15) passes. , the through hole (16) is inclined on the fixed mold (2).
The Z-shaped guide rail structure of the thin-walled high-rigidity automobile bumper mold according to claim 6, wherein the through hole (16) is away from the lower connecting part (15) from the side close to the lower connecting part (15) One side is inclined outwards.
The Z-shaped guide rail structure of the thin-walled and high-rigidity automobile bumper mold according to claim 1, characterized in that the top surface of the forming block (5) has the same arc shape as the upper surface of the fixed mold (2).
The Z-shaped guide rail structure of the thin-walled high-rigidity automobile bumper mold according to claim 5, wherein the width of the lower connecting portion (15) is greater than the width of the upper contact portion (13), and the lower connecting portion The bottom end surface of (15) is in contact with the top end surface of the push block (9).
The Z-shaped guide rail structure of the thin-walled and high-rigidity automobile bumper mold according to claim 3, wherein the push block (9) is provided with a structure for connecting the push block (9) and the push rod ( 8) The connected fixing piece (17), the slideway (10) is provided with a mounting hole (18) recessed downward for the fixing piece (17) to be installed, and the depth of the mounting hole (18) is greater than that of the fixing piece (18) the height of the piece (17).