Forming mold for automobile thin-wall injection molded part

Abstract

The utility model discloses a forming mold for an automobile thin-wall injection molded part, and belongs to the technical field of injection molds, the forming mold comprises a main body module and a working module, the main body module comprises a bottom plate, a lower mold main body is arranged at the top of the bottom plate, and an upper mold main body is arranged above the lower mold main body; the working module is arranged among the bottom plate, the lower mold main body and the upper mold main body, the working module comprises a mounting assembly arranged at the top of the bottom plate and among the lower mold main body and the upper mold main body, and a first ejection assembly is arranged between the bottom of the bottom plate and the lower mold main body; a second ejection assembly is arranged on the top of the upper mold body, the second ejection assembly can be installed through the installation assembly, meanwhile, the lower mold body and the upper mold body can be limited, and through the arrangement of the first ejection assembly and the second ejection assembly, the upper mold body and the lower mold body can be fixed. And injection molding parts can be ejected out from the interiors of the lower mold main body and the upper mold main body, so that the practicability is improved.

Description

Technical Field

[0001] The present application relates to the technical field of injection molds, and more specifically, to a molding mold for automobile thin-wall injection molded parts. Background Art

[0002] An injection mold is a tool for producing plastic products. It is also a tool that gives plastic products a complete structure and precise dimensions. Injection molding is a processing method used in mass production of certain parts with complex shapes. Specifically, it refers to the high-pressure injection of heated and melted plastic into the mold cavity by an injection molding machine, and the molded product is obtained after cooling and solidification. Corresponding injection molding molds are also used in the production of thin-walled automotive parts.

[0003] According to the search, the Chinese patent with the announcement number CN218803725U discloses an automobile injection molding mold, which includes a base and two connecting plates, the base is provided with an ejection mechanism, the base is provided with an auxiliary component, the ejection mechanism includes two electric push rods fixedly installed with the bottom of the inner wall of the base, the output ends of the two electric push rods are fixedly installed with a lower mold, the tops of the two connecting plates are fixedly installed with an extrusion spring with one end fixedly connected to the bottom of the lower mold, and the tops of the two connecting plates are fixedly installed with a connecting rod. The utility model is equipped with an ejection mechanism, which can eject the injection molded part from the mold cavity after the automobile injection mold is formed, reduce the situation of damage to the injection molded part when it is taken out, and is beneficial to improve the quality and efficiency of demolding the injection molded part. Auxiliary components are installed, which can accurately connect the upper mold with the lower mold, reduce the situation of mold deviation, and is beneficial to improve the quality of injection molding of the injection molded part.

[0004] With respect to the above-mentioned related technologies, the applicant believes that only an ejection structure is provided on the lower mold, and no corresponding ejection structure is provided on the upper mold. When demolding, the injection molded parts may get stuck in the upper mold. Therefore, we propose a molding mold for automotive thin-walled injection molding parts. Utility Model Content

[0005] In order to solve the above problems, the present application provides a molding die for thin-walled injection molded parts of automobiles, which adopts the following technical solution:

[0006] A molding die for thin-walled injection molded parts of an automobile comprises a main body module and a working module, wherein the main body module comprises a bottom plate, a lower mold body is arranged on the top of the bottom plate, an upper mold body is arranged above the lower mold body, the working module is arranged between the bottom plate, the lower mold body and the upper mold body, the working module comprises an installation assembly arranged on the top of the bottom plate, between the lower mold body and the upper mold body, a first ejection assembly is arranged between the bottom of the bottom plate and the lower mold body, and a second ejection assembly is arranged on the top of the upper mold body.

[0007] By adopting the above technical solution, the injection molded parts in the lower mold body and the upper mold body can be ejected.

[0008] Furthermore, the installation assembly includes four limit columns that are fixedly connected to the top of the base plate, the lower mold body and the upper mold body are both sleeved between the surfaces of the four limit columns, an H-shaped block is fixedly connected between the tops of the four limit columns, and a rectangular groove is opened inside the H-shaped block.

[0009] By adopting the above technical solution, the lower mold body and the upper mold body can be limited.

[0010] Furthermore, the first ejection assembly includes a mounting groove provided inside the bottom plate, the interior of the mounting groove is fixedly connected with a first hydraulic cylinder, and an output end of the first hydraulic cylinder extends to the interior of the lower mold body.

[0011] By adopting the above technical solution, the first hydraulic cylinder can be installed.

[0012] Furthermore, the first ejection assembly also includes a first ejection block fixedly connected to the output end of the first hydraulic cylinder, and a first sealing ring is fixedly connected to the top of the first ejection block.

[0013] By adopting the above technical solution, the first hydraulic cylinder can drive the first ejection block to drive the first sealing ring to move up and down.

[0014] Furthermore, the second ejection assembly includes a second hydraulic cylinder fixedly connected to the top of the upper mold body, and the output end of the second hydraulic cylinder extends to the inside of the upper mold body, and the second hydraulic cylinder is located on the inner side of the rectangular groove.

[0015] By adopting the above technical solution, the second hydraulic cylinder can be installed.

[0016] Furthermore, the second ejection assembly also includes a second ejection block fixedly connected to the output end of the second hydraulic cylinder, and a second sealing ring is fixedly connected to the bottom of the second ejection block.

[0017] By adopting the above technical solution, the second hydraulic cylinder can drive the second ejection block to drive the second sealing ring to move up and down.

[0018] Furthermore, the installation assembly also includes two placement grooves, both of which are opened on the H-shaped block, and the interiors of the two placement grooves are fixedly connected to a third hydraulic cylinder, and the output ends of the two third hydraulic cylinders are fixedly connected to the top of the upper mold body.

[0019] By adopting the above technical solution, the third hydraulic cylinder can drive the upper mold body to move up and down.

[0020] Furthermore, the main module also includes a fixing component arranged on the base plate, and the fixing component includes four threaded holes respectively opened at the four corners of the base plate, the interiors of the four threaded holes are all threadedly connected with fixing pins, and the four fixing pins extend to the bottom of the base plate.

[0021] By adopting the above technical solution, it is convenient to install and fix the base plate.

[0022] In summary, this application includes the following beneficial technical effects:

[0023] (1) By providing the first ejection assembly and the second ejection assembly, the injection molded part can be ejected from the inside of the lower mold body and the upper mold body, thereby improving practicality;

[0024] (2) The rectangular groove is provided to facilitate the passage of the second hydraulic cylinder. The first sealing ring and the second sealing ring are provided to ensure the sealing of the lower mold body and the upper mold body. The first hydraulic cylinder is provided to drive the first ejector block to move up and down. The second hydraulic cylinder is provided to drive the second ejector block to move up and down.

[0025] (3) By setting the mounting groove, the third hydraulic cylinder can be installed, by setting the threaded hole, the fixing pin can be installed, and by setting the fixing pin, the bottom plate can be installed and fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of this application;

[0027] Figure 2 This is a schematic diagram of the explosion structure of this application;

[0028] Figure 3 It is a schematic diagram of the exploded structure of the installation component and the fixing component of the present application;

[0029] Figure 4 This is a schematic diagram of the exploded structure of the first ejection assembly and the second ejection assembly of the present application.

[0030] Description of the numbers in the figure:

[0031] 100, main body module; 110, bottom plate; 120, lower mold body; 130, upper mold body; 140, fixing assembly; 141, threaded hole; 142, fixing pin;

[0032] 200, working module; 210, mounting assembly; 211, limiting column; 212, H-shaped block; 213, rectangular groove; 214, placement groove; 215, third hydraulic cylinder; 220, first ejection assembly; 221, mounting groove; 222, first hydraulic cylinder; 223, first ejection block; 224, first sealing ring; 230, second ejection assembly; 231, second hydraulic cylinder; 232, second ejection block; 233, second sealing ring. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0034] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] The following is combined with Figure 1-4 This application is described in further detail.

[0037] See also Figure 1-4A molding mold for automotive thin-walled injection molding parts includes a main body module 100 and a working module 200. The main body module 100 includes a bottom plate 110. A lower mold body 120 is arranged on the top of the bottom plate 110. An upper mold body 130 is arranged above the lower mold body 120. The working module 200 is arranged between the bottom plate 110, the lower mold body 120 and the upper mold body 130. The working module 200 includes an installation component 210 arranged on the top of the bottom plate 110, between the lower mold body 120 and the upper mold body 130. A first ejection component 220 is arranged between the bottom of the bottom plate 110 and the lower mold body 120, and a second ejection component 230 is arranged on the top of the upper mold body 130.

[0038] By setting the installation component 210, the second ejector component 230 can be installed, and the lower mold body 120 and the upper mold body 130 can be limited at the same time. By setting the first ejector component 220 and the second ejector component 230, the injection molded parts can be ejected from the inside of the lower mold body 120 and the upper mold body 130, thereby improving practicality.

[0039] The mounting assembly 210 includes four limiting columns 211 fixedly connected to the top of the bottom plate 110, the lower mold body 120 and the upper mold body 130 are sleeved between the surfaces of the four limiting columns 211, an H-shaped block 212 is fixedly connected between the tops of the four limiting columns 211, and a rectangular groove 213 is opened inside the H-shaped block 212. The first ejection assembly 220 includes a mounting groove 221 opened inside the bottom plate 110, and a first hydraulic cylinder 222 is fixedly connected inside the mounting groove 221, and the output end of the first hydraulic cylinder 222 extends to the inside of the lower mold body 120. The first ejection assembly 220 It also includes a first ejector block 223 fixedly connected to the output end of the first hydraulic cylinder 222, and a first sealing ring 224 is fixedly connected to the top of the first ejector block 223. The second ejector assembly 230 includes a second hydraulic cylinder 231 fixedly connected to the top of the upper mold body 130, and the output end of the second hydraulic cylinder 231 extends to the interior of the upper mold body 130. The second hydraulic cylinder 231 is located on the inner side of the rectangular groove 213. The second ejector assembly 230 also includes a second ejector block 232 fixedly connected to the output end of the second hydraulic cylinder 231, and a second sealing ring 233 is fixedly connected to the bottom of the second ejector block 232.

[0040] By starting the first hydraulic cylinder 222, the first ejection block 223 can be driven to drive the first sealing ring 224 to eject the injection molded part inside the upper mold body 130. By starting the second hydraulic cylinder 231, the second ejection block 232 can be driven to drive the second sealing ring 233 to eject the injection molded part inside the lower mold body 120.

[0041] The mounting assembly 210 also includes two mounting grooves 214 both provided on the H-shaped block 212, the interiors of the two mounting grooves 214 are fixedly connected with a third hydraulic cylinder 215, and the output ends of the two third hydraulic cylinders 215 are fixedly connected with the top of the upper mold body 130, and the main body module 100 also includes a fixing assembly 140 arranged on the base plate 110, and the fixing assembly 140 includes four threaded holes 141 respectively provided at the four corners of the base plate 110, and the interiors of the four threaded holes 141 are threadedly connected with fixing pins 142, and the four fixing pins 142 extend to the bottom of the base plate 110.

[0042] By starting the third hydraulic cylinder 215 , the upper mold body 130 can be driven to slide and rise on the surfaces of the four limiting pillars 211 , thereby facilitating demoulding of the injection molded part.

[0043] The implementation principle of the embodiment of the present application is as follows: when it is necessary to demold the molded injection molded part, first start the second hydraulic cylinder 231 and the third hydraulic cylinder 215, the third hydraulic cylinder 215 will drive the upper mold body 130 to move upward on the surfaces of the four limit columns 211, the second hydraulic cylinder 231 will drive the second ejection block 232 to drive the second sealing ring 233 to eject the injection molded part downward, so that the injection molded part can be separated from the upper mold body 130, thereby preventing the injection molded part from being stuck inside the upper mold body 130, and then start the first hydraulic cylinder 222, the first hydraulic cylinder 222 will drive the first ejection block 223 to drive the first sealing ring 224 to lift the injection molded part upward, so that the injection molded part can be separated from the lower mold body 120, and then the injection molded part can be demolded. In this mold, the lower mold body 120 and the upper mold body 130 are both equipped with corresponding ejection structures, so that the molded injection molded part can be completely ejected and demolded, thereby improving practicality.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A molding die for thin-walled injection molded parts of an automobile, comprising a main module (100) and a working module (200), characterized in that: The main body module (100) comprises a bottom plate (110), a lower mold body (120) is arranged on the top of the bottom plate (110), an upper mold body (130) is arranged above the lower mold body (120), and the working module (200) is arranged between the bottom plate (110), the lower mold body (120) and the upper mold body (130); The working module (200) comprises a mounting assembly (210) arranged at the top of a base plate (110), between a lower mold body (120) and an upper mold body (130); a first ejection assembly (220) is arranged between the bottom of the base plate (110) and the lower mold body (120); and a second ejection assembly (230) is arranged at the top of the upper mold body (130).

2. The molding die for thin-walled automotive injection molded parts according to claim 1, characterized in that: The mounting assembly (210) comprises four limiting columns (211) which are fixedly connected to the top of the bottom plate (110); the lower mold body (120) and the upper mold body (130) are sleeved between the surfaces of the four limiting columns (211); an H-shaped block (212) is fixedly connected between the tops of the four limiting columns (211); and a rectangular groove (213) is provided inside the H-shaped block (212).

3. The molding die for a thin-walled automobile injection molded part according to claim 2, characterized in that: The first ejection assembly (220) comprises a mounting groove (221) provided inside the bottom plate (110), a first hydraulic cylinder (222) is fixedly connected inside the mounting groove (221), and an output end of the first hydraulic cylinder (222) extends to the inside of the lower mold body (120).

4. The molding die for thin-walled automotive injection molding according to claim 3, characterized in that: The first ejection assembly (220) further comprises a first ejection block (223) fixedly connected to the output end of the first hydraulic cylinder (222), and a first sealing ring (224) is fixedly connected to the top of the first ejection block (223).

5. The molding die for thin-walled automotive injection molding according to claim 4, characterized in that: The second ejection assembly (230) comprises a second hydraulic cylinder (231) fixedly connected to the top of the upper mold body (130), and the output end of the second hydraulic cylinder (231) extends to the interior of the upper mold body (130), and the second hydraulic cylinder (231) is located on the inner side of the rectangular groove (213).

6. The molding die for thin-walled automotive injection molding according to claim 5, characterized in that: The second ejection assembly (230) further comprises a second ejection block (232) fixedly connected to the output end of the second hydraulic cylinder (231), and a second sealing ring (233) is fixedly connected to the bottom of the second ejection block (232).

7. The molding die for thin-walled automotive injection moldings according to claim 6, characterized in that: The mounting assembly (210) further comprises two mounting grooves (214) both provided on the H-shaped block (212), the interiors of the two mounting grooves (214) both being fixedly connected with a third hydraulic cylinder (215), and the output ends of the two third hydraulic cylinders (215) both being fixedly connected with the top of the upper mold body (130).

8. The molding die for thin-walled automotive injection molding according to claim 7, characterized in that: The main body module (100) further comprises a fixing assembly (140) arranged on the base plate (110), the fixing assembly (140) comprising four threaded holes (141) respectively opened at four corners of the base plate (110), the interiors of the four threaded holes (141) are all threadedly connected with fixing pins (142), and the four fixing pins (142) all extend to the bottom of the base plate (110).

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