Automobile part injection mold with multi-cavity precise positioning function

Abstract

The utility model discloses an automobile part injection mold with multi-cavity precise positioning, which comprises a fixed mold and a movable mold, the side walls of the fixed mold and the movable mold are provided with deviation detection mechanisms acting on the fixed mold and the movable mold, and each deviation detection mechanism consists of a fixed plate, a detection piece and a deviation detection assembly; the fixed plate is fixedly connected to the side wall of the movable mold, a positioning detection plate is fixedly connected to the bottom of the fixed plate, and through the arrangement of the positioning detection plate, the pressure detector, the elastic piece and the deviation detection assembly, whether position deviation occurs between the fixed mold and the movable mold or not can be detected, so that the machining quality of parts is guaranteed, and the machining efficiency is improved. Through the arranged deviation detection assembly, the two ends of the spring can be prevented from being directly and fixedly connected with the elastic piece and the pressure detector, the problem that the detection precision is affected due to the fact that the elastic piece and the pressure detector are pulled by the gravity of the spring is solved, and meanwhile the elastic piece and the pressure detector are convenient to disassemble, assemble and replace.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts production, in particular to an injection mold for automobile parts with multi-cavity precise positioning. Background Technique

[0002] Most automobile parts need to be injection-molded through an injection mold during production. A multi-cavity injection mold can produce multiple automobile parts simultaneously, effectively improving the processing efficiency. Therefore, using a multi-cavity injection mold during injection molding has gradually become the main method for automobile parts production.

[0003] When the injection mold is in use, the moving template and the fixed template will continuously separate and then combine, thereby realizing the molding and demolding of the plastic part. However, if due to improper installation operation, a slight deviation occurs in the combination of the moving and fixed templates, at this time, the staff cannot know the existence of the deviation, and continuing to use the mold without knowing the deviation is likely to cause wear of the parts inside the mold, thereby accelerating the scrapping of the mold, and will also cause phenomena such as burrs when the plastic part is molded.

[0004] According to a precision injection mold for facilitating precise positioning disclosed in the Chinese patent document with the publication number CN214773645U, which includes a moving template, a fixed template, a positioning active structure, and a positioning monitoring structure, this device can detect a slight deviation in the combination of the moving template and the fixed template, and can avoid continuing to use the mold without knowing that a deviation has occurred.

[0005] In the above device, the deviation of the elastic sheet drives the spring to squeeze the pressure detector to judge whether there is a slight deviation in the combination of the moving template and the fixed template. Among them, both ends of the spring are fixedly connected to the pressure detector and the elastic sheet, and the spring itself lacks a support measure. Although the spring itself is in a relaxed state, the weight of the spring itself will have a certain pulling effect on the pressure detector and the elastic sheet, and this pulling force will cause a slight deviation of the elastic sheet, thereby affecting the detection effect of the pressure detector. At the same time, the fixed connection of the spring with the pressure detector and the elastic sheet will also affect the disassembly and assembly work during the maintenance of the pressure detector and the elastic sheet. Summary of the Utility Model

[0006] The purpose of the utility model is to provide an injection mold for automobile parts with multi-cavity precise positioning to solve the problems raised in the above background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solution: An injection mold for automobile parts with multi-cavity precise positioning, including a fixed mold and a moving mold, the moving mold is located above the fixed mold, and a deviation detection mechanism acting on the two is arranged on the side walls of the fixed mold and the moving mold, and the deviation detection mechanism is composed of a fixing plate, a detection piece, and a deviation detection component;

[0008] The fixed plate is fixedly connected to the side wall of the moving mold. A positioning detection plate is fixedly connected to the bottom of the fixed plate. A detection piece is fixedly installed on the side wall of the fixed mold below the positioning detection plate. An installation groove is formed at the front end of the detection piece. Elastic pieces are respectively fixedly installed on two symmetric inner walls of the installation groove. A pressure detector is fixedly installed on the inner wall of the detection groove adjacent to the elastic piece. A deviation detection component is arranged between the pressure detector and the elastic piece;

[0009] The deviation detection component consists of a U-shaped plate, a trigger rod, a central plate and a centering spring. A U-shaped plate is arranged at the central position between the elastic piece and the pressure detector. The U-shaped plate is fixedly connected to the inner wall of the installation groove. A trigger rod is arranged between two parallel plates of the U-shaped plate. Two ends of the trigger rod respectively slide through the two parallel plates of the U-shaped plate. A central plate is sleeved at the central position of the trigger rod and fixedly connected to the central plate. Centering springs are respectively fixedly connected to two ends of the central plate. The other ends of the two centering springs are respectively fixedly connected to the two parallel plates of the U-shaped plate. The two centering springs have the same structure.

[0010] As a further preference of this technical solution, a front baffle is arranged at the front opening position of the installation groove.

[0011] As a further preference of this technical solution, the two elastic pieces are symmetric with each other. A detection groove is formed between the two elastic pieces. The detection groove is slidably fitted with the positioning detection plate.

[0012] As a further preference of this technical solution, the length of the trigger rod is equal to the distance between the elastic piece and the pressure detector.

[0013] As a further preference of this technical solution, the number of the deviation detection mechanisms is four. The four deviation detection mechanisms are symmetrically distributed in pairs on two symmetric sides of the mold.

[0014] As a further preference of this technical solution, a plurality of injection ports are arranged at the upper end of the moving mold.

[0015] As a further preference of this technical solution, guide rods are fixedly installed at four corner positions at the bottom of the moving mold. Guide grooves are formed at the upper end of the fixed mold below the plurality of guide rods.

[0016] The utility model provides an injection mold for automobile parts with multi-cavity precise positioning, and has the following beneficial effects:

[0017] Through the provided positioning detection plate, pressure detector, elastic sheet, and deviation detection component, the present utility model can detect whether there is a position deviation between the fixed mold and the moving mold to ensure the quality of part processing. By setting the deviation detection component, it can prevent the two ends of the spring from being directly fixedly connected to the elastic sheet and the pressure detector, avoiding the pulling effect of the spring's own gravity on the elastic sheet and the pressure detector, which may affect the detection accuracy. At the same time, it also facilitates the disassembly, installation, and replacement of the elastic sheet and the pressure detector. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 is a schematic diagram of a partial structure of the present utility model;

[0020] Figure 3 is a schematic diagram of the internal structure of the detection part in the present utility model;

[0021] Figure 4 is a schematic diagram of the structure of the deviation detection mechanism in the present utility model;

[0022] Figure 5 For the present utility model Figure 4 is a schematic diagram of the structure of A;

[0023] In the figure: 1, fixed mold; 2, moving mold; 3, guide rod; 4, guide groove; 5, fixed plate; 6, positioning detection plate; 7, detection part; 8, front baffle; 9, installation groove; 10, pressure detector; 11, elastic sheet; 12, detection groove; 13, U-shaped plate; 14, trigger rod; 15, center plate; 16, centering spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0025] The present utility model provides a technical solution: As Figures 1 to 5 shown, in this embodiment, an injection mold for automotive parts with multi-cavity precision positioning includes a fixed mold 1 and a moving mold 2. The moving mold 2 is located above the fixed mold 1. A deviation detection mechanism acting on both is provided on the side walls of the fixed mold 1 and the moving mold 2. The deviation detection mechanism is composed of a fixed plate 5, a detection part 7, and a deviation detection component;

[0026] The fixed plate 5 is fixedly connected to the side wall of the moving mold 2. A positioning and detecting plate 6 is fixedly connected to the bottom of the fixed plate 5. A detecting member 7 is fixedly installed on the side wall of the fixed mold 1 below the positioning and detecting plate 6. An installation groove 9 is formed at the front end of the detecting member 7. A front baffle 8 is arranged at the opening position of the front end of the installation groove 9. Elastic sheets 11 are fixedly installed on two symmetric inner walls of the installation groove 9 respectively. The two elastic sheets 11 are symmetric to each other. A detecting groove 12 is formed between the two elastic sheets 11. The detecting groove 12 is slidably fitted with the positioning and detecting plate 6. A pressure detector 10 is fixedly installed on the inner wall of the detecting groove 12 adjacent to the elastic sheet 11. A deviation detecting assembly is arranged between the pressure detector 10 and the elastic sheet 11.

[0027] The deviation detecting assembly consists of a U-shaped plate 13, a trigger rod 14, a central plate 15 and a centering spring 16. A U-shaped plate 13 is arranged at the central position between the elastic sheet 11 and the pressure detector 10. The U-shaped plate 13 is fixedly connected to the inner wall of the installation groove 9. A trigger rod 14 is arranged between two parallel plates of the U-shaped plate 13. The length of the trigger rod 14 is equal to the distance between the elastic sheet 11 and the pressure detector 10. Two ends of the trigger rod 14 respectively slide through the two parallel plates of the U-shaped plate 13. A central plate 15 is sleeved at the central position of the trigger rod 14 and fixedly connected to the central plate 15. Centering springs 16 are fixedly connected to two ends of the central plate 15 respectively. The other ends of the two centering springs 16 are respectively fixedly connected to the two parallel plates of the U-shaped plate 13. The two centering springs 16 have the same structure.

[0028] Among them, the number of the deviation detecting mechanisms is four. The four deviation detecting mechanisms are symmetrically distributed in two pairs on two symmetric sides of the mold.

[0029] With such a setting, the multiple groups of deviation detecting mechanisms act together, which can ensure that the detecting structure is more accurate.

[0030] Among them, a plurality of injection ports are arranged at the upper end of the moving mold 2. Guide rods 3 are fixedly installed at four corner positions at the bottom of the moving mold 2. Guide grooves 4 are formed at the upper end of the fixed mold 1 below the plurality of guide rods 3.

[0031] The fixed mold 1 and the moving mold 2 can be positioned through the arranged guide rods 3 and guide grooves 4.

[0032] With such a setting, the multiple groups of deviation detecting mechanisms act together, which can ensure that the detecting structure is more accurate.

[0033] The utility model provides an injection mold for automobile parts with multi-cavity precise positioning. The specific working principle is as follows:

[0034] During use, the moving mold 2 is installed on the moving module of the injection molding machine, and the fixed mold 1 is installed on the fixed module of the injection molding machine. By driving the moving mold 2 to move up and down through the moving module, the mold closing and mold opening movements of the fixed mold 1 and the moving mold 2 can be realized. When the fixed mold 1 and the moving mold 2 are closed, the positioning detection plate 6 on the side wall of the moving mold 2 will insert into the interior of the detection part 7 on the side wall of the fixed mold 1, and the positioning detection plate 6 will slide in the detection groove 12 formed between the two elastic pieces 11. When there is a position deviation between the fixed mold 1 and the moving mold 2, the positioning detection plate 6 will exert extrusion on the elastic piece 11 to cause it to deform. The deformation of the elastic piece 11 will exert extrusion on the trigger rod 14, causing the other end of the trigger rod 14 to act on the pressure detector 10. The built-in signal transmission module of the pressure detector 10 will transmit the signal to an external receiver to remind the staff that there is a position deviation between the fixed mold 1 and the moving mold 2;

[0035] Function of the deviation detection component: Under the action of the U-shaped plate 13, the central plate 15 and the two centering springs 16, the trigger rod 14 can be centered between the elastic piece 11 and the pressure detector 10, and it is ensured that the two ends of the trigger rod 14 will not exert pulling or squeezing effects on the elastic piece 11 and the pressure detector 10 (the two ends of the trigger rod 14 are separated from the elastic piece 11 and the pressure detector 10), thus avoiding the problem that when the two ends of the spring are directly fixedly connected to the elastic piece 11 and the pressure detector 10, the self-weight of the spring will exert pulling on the elastic piece 11 and the pressure detector 10, which affects the detection accuracy. At the same time, this separated structural design also facilitates the disassembly, replacement and installation of the elastic piece 11 and the pressure detector 10.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection mold for automotive parts with multi-cavity precision positioning, comprising a fixed mold (1) and a moving mold (2), characterized in that: The moving mold (2) is located above the fixed mold (1). A deviation detection mechanism acting on both of them is provided on the side walls of the fixed mold (1) and the moving mold (2). The deviation detection mechanism consists of a fixed plate (5), a detection piece (7) and a deviation detection component; The fixed plate (5) is fixedly connected to the side wall of the moving mold (2). A positioning detection plate (6) is fixedly connected to the bottom of the fixed plate (5). A detection piece (7) is fixedly installed on the side wall of the fixed mold (1) below the positioning detection plate (6). An installation groove (9) is formed at the front end of the detection piece (7). Elastic pieces (11) are respectively fixedly installed on two symmetric inner walls of the installation groove (9). A pressure detector (10) is fixedly installed on the inner wall of the detection groove (12) adjacent to the elastic piece (11). A deviation detection component is arranged between the pressure detector (10) and the elastic piece (11); The deviation detection component consists of a U-shaped plate (13), a trigger rod (14), a central plate (15) and a centering spring (16). A U-shaped plate (13) is arranged at the central position between the elastic piece (11) and the pressure detector (10). The U-shaped plate (13) is fixedly connected to the inner wall of the installation groove (9). A trigger rod (14) is arranged between two parallel plates of the U-shaped plate (13). Two ends of the trigger rod (14) respectively slide through the two parallel plates of the U-shaped plate (13). A central plate (15) is sleeved at the central position of the trigger rod (14) and fixedly connected to the central plate (15). Centering springs (16) are respectively fixedly connected to two ends of the central plate (15). The other ends of the two centering springs (16) are respectively fixedly connected to the two parallel plates of the U-shaped plate (13). The two centering springs (16) have the same structure.

2. The injection mold for automotive parts with multi-cavity precise positioning according to claim 1, wherein: A front baffle (8) is arranged at the front end opening position of the installation groove (9).

3. The injection mold for automotive parts with multi-cavity precise positioning according to claim 1, characterized in that: The two elastic pieces (11) are symmetric to each other. A detection groove (12) is formed between the two elastic pieces (11). The detection groove (12) is slidably fitted with the positioning detection plate (6).

4. A plastic injection mold for automotive parts with multi-cavity precision positioning according to claim 1, characterized in that: The length of the trigger rod (14) is equal to the distance between the elastic piece (11) and the pressure detector (10).

5. The injection mold for automotive parts with multi-cavity precise positioning according to claim 1, characterized in that: The number of the deviation detection mechanisms is four. The four deviation detection mechanisms are symmetrically distributed in two pairs on two symmetric sides of the mold.

6. The injection mold for automotive parts with multi-cavity precision positioning according to claim 1, characterized in that: A plurality of injection ports are arranged at the upper end of the moving mold (2).

7. A plastic injection mold for automotive parts with multi-cavity precision positioning according to claim 1, characterized in that: Guide rods (3) are fixedly installed at four corner positions at the bottom of the moving mold (2). Guide grooves (4) are formed at the upper end of the fixed mold (1) below the plurality of guide rods (3).

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