Forming die of glue inlet and exhaust structure

Abstract

The utility model discloses a forming die of a glue inlet and exhaust structure, which relates to the technical field of forming dies and comprises a die body, a plurality of mounting holes are arranged on the inner side of the die body, an exhaust passage is arranged in the die body, and exhaust components are arranged on the inner sides of the mounting holes. According to the technical scheme provided by the utility model, the exhaust assembly is arranged, specifically, during injection molding, gas of a forming mold can extrude the blocking piece, so that the blocking piece overcomes the elastic force of the reset spring to open the air hole for exhausting, the gas is gradually exhausted out of the reset spring and supports the blocking piece, and the blocking piece and the exhaust hole are attached and reset; therefore, protrusions recessed from the air holes are not left on the product during injection molding, the smoothness of the surface of the product is ensured, and the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of forming molds, in particular to a forming mold with a glue feeding and exhausting structure. Background Art

[0002] An injection mold is a tool that injects molten plastic material into a mold and forms a product of the desired shape through pressurization and cooling. Usually, in an injection mold, in order to ensure the quality of the product during injection molding, it is necessary to vent the mold cavity. Currently, it is common to open vent holes in the mold cavity.

[0003] However, when a vent hole is currently opened in the mold cavity, since the vent hole itself is hollow in the middle, a small protrusion formed by the vent hole will appear on the surface of the product after molding, which not only affects the smoothness of the surface but also makes subsequent processing more troublesome. Therefore, improvements are needed. Utility Model Content

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing technology and provide a molding mold with a glue feeding and exhaust structure, so as to solve the problem that when the exhaust hole is opened in the mold cavity in the existing technology, since the middle of the exhaust hole itself is hollow, small protrusions formed by the exhaust hole will appear on the surface of the product after molding, which not only affects the smoothness of the surface, but also makes subsequent processing more troublesome.

[0005] In view of this, the utility model provides a molding die with a glue feeding and exhausting structure, comprising a die body, a plurality of mounting holes being opened on the inner side of the die body, an exhaust passage being opened inside the die body, and an exhaust assembly being arranged inside the mounting holes;

[0006] The exhaust assembly includes a mounting head, a blocking piece, a fixing frame, a sliding rod, a return spring, an adjusting screw, a fixing ear and an air hole. The mounting head is fixedly mounted on the inner side of the mounting hole, the blocking piece and the fixing frame are both arranged on the inner side of the mounting head, one end of the sliding rod passes through the middle of the fixing frame and is fixedly connected to the inner side of the blocking piece, the return spring is sleeved on the outside of the sliding rod, the fixing ear is fixedly connected to the inner side of one end of the mounting head, one end of the adjusting screw passes through the fixing ear and is rotatably connected to one end of the sliding rod, and the air hole is opened at one end of the mounting head.

[0007] Optionally, a side surface of the blocking piece and an end surface of the mounting head are on the same plane.

[0008] Optionally, one end of the sliding rod is slidably connected to the middle of the fixing frame.

[0009] Optionally, one end of the return spring is disposed against a surface of one side of the blocking piece, and the other end of the return spring is disposed against a side of the fixing frame.

[0010] Optionally, one end of the adjusting screw is threadedly connected to the fixing ear.

[0011] Optionally, the inner diameter of the mounting hole matches the outer diameter of the mounting head.

[0012] Optionally, the exhaust passage is communicated with the mounting hole.

[0013] It can be seen from the above technical solutions that the embodiments of the present invention have the following advantages:

[0014] 1. The molding die of the glue feeding and exhaust structure of the present invention is provided with an exhaust component. Specifically, during injection molding, the gas in the molding die will squeeze the plugging piece so that the plugging piece overcomes the elastic force of the reset spring and opens the air hole for exhaust. As the gas is gradually discharged, the reset spring and the supporting plugging piece are supported, so that the plugging piece fits and resets with the exhaust hole, thereby ensuring that the product will not leave a protrusion caused by the air hole depression during injection molding, ensuring the smoothness of the product surface and improving the product quality.

[0015] 2. The molding die of the glue feeding and exhaust structure of the present invention is provided with an exhaust assembly. Specifically, when in use, the exhaust assembly can be disassembled, and the position of the fixing frame can be adjusted by rotating the adjusting screw, thereby adjusting the compression amount of the reset spring so as to adjust according to different injection molding materials. When the material is harder, the compression amount of the reset spring can be increased, and vice versa, it can be reduced so that there is sufficient supporting force to support the material, thereby improving the practical versatility of the exhaust assembly.

[0016] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings:

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

[0019] Figure 2 This is a schematic diagram of the mold body structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the overall structure of the exhaust assembly of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the mounting head of the utility model;

[0022] Figure 5 This is a schematic diagram of the partial structure of the exhaust component of the present utility model.

[0023] Explanation of the accompanying drawings: 1. Mold body; 2. Mounting hole; 3. Exhaust channel; 401. Mounting head; 402. Blocking piece; 403. Fixing frame; 404. Sliding rod; 405. Return spring; 406. Adjusting screw; 407. Fixing ear; 408. Air hole. DETAILED DESCRIPTION

[0024] The following is an explanation and description of the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0025] The forming mold of the glue feeding and exhaust structure of the embodiment of the utility model is described in detail below with reference to the accompanying drawings.

[0026] For easier understanding, see Figures 1 to 5 An embodiment of a molding die with a glue feeding and exhausting structure provided by the present invention includes a die body 1, a plurality of mounting holes 2 are opened on the inner side of the die body 1, an exhaust channel 3 is opened inside the die body 1, and an exhaust component is arranged inside the mounting hole 2;

[0027] The exhaust assembly includes a mounting head 401, a plug 402, a fixing frame 403, a slide rod 404, a return spring 405, an adjusting screw 406, a fixing ear 407 and an air hole 408. The mounting head 401 is fixedly mounted on the inner side of the mounting hole 2. The plug 402 and the fixing frame 403 are both arranged on the inner side of the mounting head 401. One end of the slide rod 404 passes through the middle of the fixing frame 403 and is fixedly connected to the inner side of the plug 402. The return spring 405 is sleeved on the outer side of the slide rod 404. The fixing ear 407 is fixedly connected to the inner side of one end of the mounting head 401. One end of the adjusting screw 406 passes through the fixing ear 407 and is rotatably connected to one end of the slide rod 404. The air hole 408 is opened at one end of the mounting head 401. The surface of one side of the blocking piece 402 is on the same plane as the surface of one end of the mounting head 401. One end of the slide rod 404 is slidably connected to the middle of the fixing frame 403. One end of the return spring 405 is against the surface of one side of the blocking piece 402, and the other end of the return spring 405 is against one side of the fixing frame 403. The inner diameter of the mounting hole 2 matches the outer diameter of the mounting head 401, and the exhaust channel 3 is connected to the mounting hole 2.

[0028] It should be noted that, by setting up a separate mounting head 401, first, the separate mounting head 401 opens the mounting hole 2, which is more convenient than the traditional method of directly opening a tiny hole on the mold, and can be disassembled, which also facilitates the processing of the mounting hole 2. Then, a plug 402 and a fixing frame 403 are set. The fixing frame 403 is fixed by the cooperation of the adjusting screw 406 and the fixing ear 407. The plug 402 can slide on the fixing frame 403 using the sliding rod 404, thereby shrinking. Therefore, during injection molding, the gas in the molding mold will squeeze the plug 402 so that the plug 402 overcomes the elastic force of the reset spring 405 to open the air hole 408 for exhaust. As the gas is gradually discharged, the reset spring 405 and the support of the plug 402 are released, so that the plug 402 and the exhaust hole 408 are fit and reset, thereby ensuring that the product will not leave a protrusion that is concave from the air hole 408 during injection molding, ensuring the smoothness of the product surface, and improving product quality.

[0029] In some embodiments, as Figure 3 、 Figure 5 As shown, one end of the adjusting screw 406 is connected to the fixing ear 407 by a thread.

[0030] It should be noted that by engaging the adjusting screw 406 and the fixing ear 407 and rotating the adjusting screw 406, the position of the fixing frame 403 is adjusted, thereby adjusting the compression amount of the return spring 405 so as to be adjusted according to different injection molding materials. When the material is harder, the compression amount of the return spring 405 can be increased, and vice versa, it can be reduced so that there is sufficient supporting force to support the material, thereby improving the practical versatility of the exhaust component.

[0031] Working principle: When in use, the position of the fixing frame 403 is adjusted by rotating the adjusting screw 406 according to the material, thereby adjusting the compression amount of the return spring 405, and the exhaust component is installed inside the mounting hole 2. During injection molding, the gas in the molding mold will squeeze the plugging piece 402 so that the plugging piece 402 overcomes the elastic force of the return spring 405 to open the air hole 408 for exhaust. As the gas is gradually discharged, the return spring 405 and the support of the plugging piece 402 are made to fit and reset with the exhaust hole 408, thereby ensuring that the product will not leave a protrusion caused by the depression of the air hole 408 during injection molding, ensuring the smoothness of the product surface and improving product quality.

[0032] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. The molding die of the glue feeding and exhaust structure is characterized by: The mold body (1) comprises a mold body (1), a plurality of mounting holes (2) are provided on the inner side of the mold body (1), an exhaust passage (3) is provided inside the mold body (1), and an exhaust assembly is provided on the inner side of the mounting holes (2); The exhaust assembly comprises a mounting head (401), a plug (402), a fixing frame (403), a slide rod (404), a return spring (405), an adjusting screw (406), a fixing ear (407) and an air hole (408); the mounting head (401) is fixedly mounted on the inner side of the mounting hole (2); the plug (402) and the fixing frame (403) are both arranged on the inner side of the mounting head (401); one end of the slide rod (404) passes through the middle of the fixing frame (403) and is fixedly connected to the inner side of the plug (402); the return spring (405) is sleeved on the outer side of the slide rod (404); the fixing ear (407) is fixedly connected to the inner side of one end of the mounting head (401); one end of the adjusting screw (406) passes through the fixing ear (407) and is rotatably connected to one end of the slide rod (404); and the air hole (408) is opened at one end of the mounting head (401).

2. The molding die of the glue feeding and exhausting structure according to claim 1, characterized in that: A side surface of the blocking piece (402) and an end surface of the mounting head (401) are on the same plane.

3. The molding die of the glue feeding and exhausting structure according to claim 1, characterized in that: One end of the sliding rod (404) is slidably connected to the middle of the fixing frame (403).

4. The molding die of the glue inlet and exhaust structure according to claim 1, characterized in that: One end of the return spring (405) is disposed against a surface of one side of the blocking piece (402), and the other end of the return spring (405) is disposed against a side of the fixing frame (403).

5. The molding die of the glue feeding and exhausting structure according to claim 1, characterized in that: One end of the adjusting screw (406) is connected to the fixing ear (407) by threaded connection.

6. The molding die of the glue feeding and exhausting structure according to claim 1, characterized in that: The inner diameter of the mounting hole (2) matches the outer diameter of the mounting head (401).

7. The molding die of the glue inlet and exhaust structure according to claim 1, characterized in that: The exhaust channel (3) is communicated with the mounting hole (2).

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