Blowing injection mold and charger shell

Abstract

The utility model relates to the technical field of injection molds, in particular to a blowing injection mold and a charger shell, which comprise a front mold frame bottom plate, a rear mold frame bottom plate, a positioning guide pillar arranged between the front mold frame bottom plate and the rear mold frame bottom plate, and a front mold plate, a rear mold plate and a push plate which are movably arranged on the positioning guide pillar along the vertical direction, the injection mold further comprises a blowing assembly used for demolding, the blowing assembly comprises an air channel arranged in the front mold plate and an air inlet pipe arranged in the mold core, one end of the air channel communicates with the outside, the other end of the air channel communicates with the air inlet pipe, and the other end of the air inlet pipe communicates with the injection molding cavity. The automatic falling-off device can realize automatic falling-off of an injection mold product, the inclined surface of the mold does not need to reach 3 degrees or below, the production cost of the mold is reduced, and meanwhile, the mold does not need to be manually taken out, so that the labor intensity of workers is effectively reduced, potential safety hazards caused by manual participation are eliminated, and the effects of increasing the yield and improving the efficiency are achieved.

Description

Technical field:

[0001] The utility model relates to the technical field of injection molds, in particular to an air blowing injection mold and a charger shell. Background technology:

[0002] Injection molding is a method for producing industrial products. Products usually use rubber injection molding and plastic injection molding. Injection molding can also be divided into injection molding compression molding and die casting. Injection molding machine (referred to as injection machine or injection molding machine) is the main molding equipment that uses plastic molding molds to make plastic products of various shapes of thermoplastic plastics or thermosetting materials. Injection molding is achieved through injection molding machines and molds. Injection molds are a tool for producing plastic products and also a tool for giving plastic products a complete structure and precise size. Injection molding refers to the high-pressure injection of heated and melted plastic into the mold cavity by an injection molding machine, and after cooling and solidification, a molded product is obtained. The shell of the charger is usually produced by injection molding. In the prior art, when the charger mold is demolded, the mold bevel often needs to be 3° or more for demolding. However, in actual production, the draft angle often does not meet the standard, resulting in the injection molded parts being pulled or sticking during the demolding process, seriously affecting the product quality. In addition, the charger shell molded by a mold with a 3° or more mold will have a higher inclination of the surface used for demolding due to the inclination of the mold, affecting the appearance of the product. Utility model content:

[0003] The purpose of the utility model is to provide a blow injection mold to address the deficiencies in the prior art, which has fast and stable demoulding and effectively improves the yield rate;

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a blowing injection mold, comprising a front mold frame bottom plate, a rear mold frame bottom plate, a positioning guide column arranged between the front mold frame bottom plate and the rear mold frame bottom plate, a front template, a rear template, a push plate movably arranged on the positioning guide column along the vertical direction, a driving component for driving the front template, the rear template, and the push plate to move, a mold core arranged in the front template, and an injection cavity arranged in the mold core, one end of the injection cavity is attached to the upper end surface of the push plate; it also includes a blowing component for demolding, the blowing component includes an air path channel arranged in the front template, and an air intake pipe arranged in the mold core, one end of the air path channel is connected to the outside, the other end of the air path channel is connected to the air intake pipe, and the other end of the air intake pipe is connected to the injection cavity.

[0005] A further improvement to the above solution is that at least one air inlet hole is provided on the side wall of the injection cavity, and the air inlet pipe is connected to the air inlet hole.

[0006] A further improvement to the above scheme is that the mold core includes a front mold core and a rear mold core, the front mold core is provided with a front molding cavity, the rear mold core is provided with a rear molding cavity, and the front molding cavity and the rear molding cavity are bonded to form the injection molding cavity.

[0007] A further improvement to the above solution is that an airtight groove is provided at the joint between the front molding cavity and the rear molding cavity, and a sealing rubber ring is provided in the airtight groove.

[0008] A further improvement to the above scheme is that the front mold core is provided with a plurality of front molding cavities, the rear mold core is provided with a plurality of rear molding cavities, and the front molding cavities and the rear molding cavities form a plurality of injection cavities.

[0009] A further improvement to the above solution is that the number of the air inlet pipes is greater than or equal to the number of the injection cavities, and a plurality of the injection cavities are connected to at least one air inlet pipe.

[0010] A further improvement to the above scheme is that a buffer assembly is arranged between the rear mold frame bottom plate and the rear mold plate, and the buffer assembly includes a support column, a support column bottom plate arranged on the rear mold frame bottom plate, and a buffer spring sleeved on the support column, one end of the support column is connected to the rear mold plate, and the other end of the support column is connected to the rear mold frame bottom plate.

[0011] A further improvement to the above solution is that a flow channel inlet is provided on the bottom plate of the front mold frame.

[0012] A further improvement to the above solution is that a heating copper tube is provided in the mold core.

[0013] On the other hand, the utility model provides a charger housing, which is prepared by using a blow molding mold as described in any one of the above items, and the inclination of each surface is less than or equal to 0.3°.

[0014] The beneficial effects of the utility model are as follows: the utility model comprises a front mold frame bottom plate, a rear mold frame bottom plate, a positioning guide column arranged between the front mold frame bottom plate and the rear mold frame bottom plate, a front template, a rear template, a push plate movably arranged on the positioning guide column along the vertical direction, a driving component for driving the front template, the rear template, and the push plate to move, a mold core arranged in the front template, an injection molding cavity arranged in the mold core, one end of the injection molding cavity is attached to the upper end surface of the push plate; and also comprises an air blowing component for demoulding, the air blowing component comprises an air path channel arranged in the front template, an air inlet pipe arranged in the mold core, one end of the air path channel is connected to the outside, the other end of the air path channel is connected to the air inlet pipe, and the other end of the air inlet pipe is connected to the injection molding cavity;

[0015] The air path of the utility model is communicated with the outside, one end of the air inlet pipe is communicated with the air path, and the other end is led into the injection cavity. When the product in the injection cavity is completed and needs to be demolded, the air is connected to the outside and led into the injection cavity. The gas is converted into thrust under the action of air pressure. At this time, the driving component drives the front template to separate from the push plate, so that the injection mold product can be automatically removed. The inclined surface of the mold can be made 0.3° or less, which not only improves the aesthetics of the product, but also eliminates the need for manual removal of the injection molded product, thereby effectively reducing the labor intensity of employees and eliminating the safety hazards caused by manual participation, thereby achieving the effect of increasing production and efficiency. Description of the drawings:

[0016] Figure 1 It is a schematic diagram of the structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0018] Figure 3 It is a structural schematic diagram of the mold core of the utility model.

[0019] Figure 4 It is a cross-sectional view of the mold core of the utility model.

[0020] Figure 5 It is a side view of the utility model.

[0021] Explanation of the accompanying drawings: front mold frame base plate 1, rear mold frame base plate 2, positioning guide column 3, front mold plate 31, rear mold plate 32, push plate 33, drive assembly 34, mold core 35, front mold core 351, front molding cavity 3511, rear mold core 352, rear molding cavity 3521, injection cavity 353, blowing assembly 4, air path channel 41, air inlet pipe 42, air inlet hole 43, airtight groove 5, sealing rubber ring 51, buffer assembly 6, support column 61, support column base plate 62, buffer spring 63, flow channel inlet 7, heating copper tube 8. Specific implementation method:

[0022] The utility model will be further described below in conjunction with the accompanying drawings. Figure 1-5As shown, the utility model provides an air blowing injection mold, comprising a front mold frame bottom plate 1, a rear mold frame bottom plate 2, a positioning guide column 3 arranged between the front mold frame bottom plate 1 and the rear mold frame bottom plate 2, a front template 31, a rear template 32, a push plate 33, and a driving component 34 for driving the front template 31, the rear template 32, and the push plate 33 to move, a mold core 35 arranged in the front template 31, and an injection cavity 353 arranged in the mold core 35, one end of the injection cavity 353 is attached to the upper end surface of the push plate 33; and also includes a blowing component 4 for demoulding, the blowing component 4 includes an air path 41 arranged in the front template 31, an air inlet pipe 42 arranged in the mold core 35, one end of the air path 41 is connected to the outside, and the air path 4 The other end of 1 is connected with the air inlet pipe 42, and the other end of the air inlet pipe 42 is connected with the injection cavity 353. The air path 41 is connected with the outside. One end of the air inlet pipe 42 is connected with the air path 41, and the other end is passed into the injection cavity 353. When the product in the injection cavity 353 is completed and needs to be demolded, the outside is connected with air and passed into the injection cavity 353. The gas is converted into thrust under the action of air pressure. At this time, the driving component 34 drives the front template 31 to separate from the push plate 33, so that the injection mold product can be automatically detached, and the mold slope can be made 0.3° or less, which not only improves the aesthetics of the product, but also does not need to be manually taken out of the injection molded product, thereby effectively reducing the labor intensity of employees and eliminating the safety hazards caused by manual participation, thereby achieving the effect of increasing production and efficiency.

[0023] At least one air inlet hole 43 is formed on the side wall of the injection cavity 353 . The air inlet pipe 42 is connected to the air inlet hole. The air inlet pipe 42 passes into the injection cavity 353 through the air inlet hole 43 .

[0024] The mold core 35 includes a front mold core 351 and a rear mold core 352 . A front molding cavity 3511 is disposed in the front mold core 351 , and a rear molding cavity 3521 is disposed in the rear mold core 352 . The front molding cavity 3511 and the rear molding cavity 3521 are bonded together to form an injection cavity 353 .

[0025] An airtight groove 5 is provided at the joint between the front molding cavity 3511 and the rear molding cavity 3521. A sealing rubber ring 51 is provided in the airtight groove 5 to prevent air leakage caused by excessive air pressure during demoulding, thereby ensuring normal blowing and demoulding.

[0026] A plurality of front molding cavities 3511 are provided on the front mold core 351, and a plurality of rear molding cavities 3521 are provided on the rear mold core 352. The front molding cavities 3511 and the rear molding cavities 3521 form a plurality of injection cavities 353. The number of air inlet pipes 42 is greater than or equal to the number of injection cavities 353. The plurality of injection cavities 353 are connected to at least one air inlet pipe 42. The plurality of injection cavities 353 can complete the injection molding of multiple molds during the injection molding operation, thereby effectively improving the work efficiency.

[0027] A buffer assembly 6 is arranged between the rear mold frame bottom plate 2 and the rear mold plate 32. The buffer assembly 6 includes a support column 61, a support column bottom plate 62 arranged on the rear mold frame bottom plate 2, and a buffer spring 63 sleeved on the support column 61. One end of the support column 61 is connected to the rear mold plate 32, and the other end of the support column 61 is connected to the rear mold frame bottom plate 2. The support column 61 is sleeved with a buffer spring 63, which can effectively reduce the vibration of the mold during injection molding and ensure stability during demolding.

[0028] A flow channel inlet 7 is provided on the front mold frame bottom plate 1 , and the injection molding material enters the mold core 35 through the flow channel inlet 7 .

[0029] A heating copper tube 8 is provided in the mold core 35 to maintain a sufficient temperature in the mold core 35 during the injection molding process, thereby ensuring that the mold will not solidify due to a decrease in temperature caused by heat loss during injection molding.

[0030] The utility model also provides a charger shell, which is prepared by using any one of the above-mentioned air blowing injection molds, and the inclination of each surface of the charger shell is less than or equal to 0.3°. The charger shell has a low inclination and a beautiful appearance.

[0031] Working principle:

[0032] The utility model provides an air blowing injection mold, comprising a front mold frame bottom plate 1, a rear mold frame bottom plate 2, a positioning guide column 3 arranged between the front mold frame bottom plate 1 and the rear mold frame bottom plate 2, a front template 31, a rear template 32, a push plate 33, which are movably arranged on the positioning guide column 3 along the vertical direction, a driving component 34 for driving the front template 31, the rear template 32, and the push plate 33 to move, a mold core 35 arranged in the front template 31, and an injection cavity 353 arranged in the mold core 35, one end of the injection cavity 353 is attached to the upper end surface of the push plate 33; and also includes an air blowing component 4 for demoulding, the air blowing component 4 includes an air path channel 41 arranged in the front template 31, an air inlet pipe 42 arranged in the mold core 35, one end of the air path channel 41 is connected to the outside, and the air inlet pipe 42 is connected to the outside. The other end is connected with the air inlet pipe 42, and the other end of the air inlet pipe 42 is connected with the injection cavity 353. The air path 41 is connected with the outside world. One end of the air inlet pipe 42 is connected with the air path 41, and the other end is passed into the injection cavity 353. When the product in the injection cavity 353 is completed and needs to be demolded, the air is connected to the outside and passed into the injection cavity 353. The gas is converted into thrust under the action of air pressure. At this time, the driving component 34 drives the front template 31 to disengage from the push plate 33, so that the injection mold product can be automatically detached, and the mold slope can be made 0.3° or less, which not only improves the aesthetics of the product, but also the injection molded product does not need to be manually taken out, thereby effectively reducing the labor intensity of employees and eliminating the safety hazards caused by manual participation, thereby achieving the effect of increasing production and efficiency.

[0033] Of course, the above is only a preferred embodiment of the present invention, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present invention patent application are included in the scope of the present invention patent application.

Claims

1. A blow injection mold, characterized in that: The invention comprises a front mold frame bottom plate (1), a rear mold frame bottom plate (2), a positioning guide column (3) arranged between the front mold frame bottom plate (1) and the rear mold frame bottom plate (2), a front mold plate (31) arranged on the positioning guide column (3) in a vertical direction, a rear mold plate (32), a push plate (33), a driving component (34) for driving the front mold plate (31), the rear mold plate (32), and the push plate (33) to move, a mold core (35) arranged in the front mold core (31), and an injection molding cavity (35) arranged in the mold core (35). 3), one end of the injection cavity (353) is attached to the upper end surface of the push plate (33); and it also includes a blowing assembly (4) for demoulding, the blowing assembly (4) includes an air path channel (41) arranged in the front template (31), and an air inlet pipe (42) arranged in the mold core (35), one end of the air path channel (41) is connected to the outside, the other end of the air path channel (41) is connected to the air inlet pipe (42), and the other end of the air inlet pipe (42) is connected to the injection cavity (353).

2. The blow injection mold according to claim 1, characterized in that: At least one air inlet hole (43) is formed on the side wall of the injection cavity (353), and the air inlet pipe (42) is in communication with the air inlet hole (43).

3. The blow injection mold according to claim 1, characterized in that: The mold core (35) comprises a front mold core (351) and a rear mold core (352); a front molding cavity (3511) is arranged in the front mold core (351), and a rear molding cavity (3521) is arranged in the rear mold core (352); the front molding cavity (3511) and the rear molding cavity (3521) are bonded together to form the injection molding cavity (353).

4. The blow injection mold according to claim 3, characterized in that: An airtight groove (5) is provided at the joint between the front molding cavity (3511) and the rear molding cavity (3521), and a sealing rubber ring (51) is provided in the airtight groove (5).

5. The blow injection mold according to claim 3, characterized in that: The front mold core (351) is provided with a plurality of front molding cavities (3511), and the rear mold core (352) is provided with a plurality of rear molding cavities (3521), and the front molding cavities (3511) and the rear molding cavities (3521) are formed with a plurality of injection molding cavities (353).

6. The blow injection mold according to claim 5, characterized in that: The number of the air inlet pipes (42) is greater than or equal to the number of the injection cavities (353), and a plurality of the injection cavities (353) are connected to at least one air inlet pipe (42).

7. The blow injection mold according to claim 1, characterized in that: A buffer assembly (6) is arranged between the rear mold frame bottom plate (2) and the rear mold plate (32), and the buffer assembly (6) comprises a support column (61), a support column bottom plate (62) arranged on the rear mold frame bottom plate (2), and a buffer spring (63) sleeved on the support column (61); one end of the support column (61) is connected to the rear mold plate (32), and the other end of the support column (61) is connected to the rear mold frame bottom plate (2).

8. The blow injection mold according to claim 1, characterized in that: The front mold frame bottom plate (1) is provided with a flow channel inlet (7).

9. The blow injection mold according to claim 1, characterized in that: A heating copper tube (8) is arranged inside the mold core (35).

10. A charger housing, characterized in that: It is prepared by using a blow injection mold as described in any one of claims 1 to 9, and the inclination of each surface is less than or equal to 0.3°.

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