CN223720089U - An injection mold that utilizes air ejection for demolding - Google Patents
An injection mold that utilizes air ejection for demoldingInfo
- Publication number
- CN223720089U CN223720089U CN202520164267.8U CN202520164267U CN223720089U CN 223720089 U CN223720089 U CN 223720089U CN 202520164267 U CN202520164267 U CN 202520164267U CN 223720089 U CN223720089 U CN 223720089U
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- mold
- disposed
- lower mold
- injection
- air supply
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Abstract
本实用新型公开了一种利用气顶脱模的注塑模具，属于注塑模具领域。一种利用气顶脱模的注塑模具，包括：顶板，还包括：上模具，设置在所述顶板上；下模具，设置在所述上模具的下侧；底板，设置在所述下模具的下侧；芯模，设置在所述下模具上；供气管，设置在所述芯模与下模具上；供气阀，设置在所述供气管内；位于所述芯模内的供气管内滑动设置有顶杆；顶头，固定设置在所述顶杆的上端；限位板，固定设置在所述顶杆上；安装盘，设置在所述下模具上；拉簧，固定设置在所述安装盘与限位板之间；本实用新型通过气顶提供的均匀作用力分散了顶出压力，避免了注塑件因局部受力过大而产生痕迹，提高了注塑件的表面质量，有效地防止注塑件损伤。
This utility model discloses an injection mold using air ejection, belonging to the field of injection molds. An injection mold using air ejection includes: a top plate; an upper mold disposed on the top plate; a lower mold disposed below the upper mold; a bottom plate disposed below the lower mold; a core mold disposed on the lower mold; an air supply pipe disposed on the core mold and the lower mold; an air supply valve disposed within the air supply pipe; an ejector rod slidably disposed within the air supply pipe located within the core mold; an ejector head fixedly disposed at the upper end of the ejector rod; a limiting plate fixedly disposed on the ejector rod; a mounting plate disposed on the lower mold; and a tension spring fixedly disposed between the mounting plate and the limiting plate. This utility model disperses the ejection pressure through the uniform force provided by the air ejector, avoiding marks on the injection molded part due to excessive local stress, improving the surface quality of the injection molded part, and effectively preventing damage to the injection molded part.
Description
Technical Field
The utility model relates to the technical field of injection molds, in particular to an injection mold utilizing air-top demolding.
Background
The injection mold is a tool for producing plastic parts and plastic parts products, is also a tool for endowing the plastic parts and plastic parts products with complete structures and precise dimensions, and is a processing method used in mass production of parts with complex shapes.
At present, a plurality of injection molds simply adopt the ejector rod mode of drawing of patterns when the drawing of patterns, this kind of traditional drawing of patterns mode has obvious defect, because the ejector rod is when the ejector rod drawing of patterns, the effort of ejector rod to the injection molding is concentrated in local position, causes the damage to the injection molding very easily, produces the ejector rod vestige on the injection molding surface, influences the appearance quality and the quality of product, has reduced the market competition of product.
Disclosure of utility model
The technical problem to be solved by the utility model is to overcome the defects in the prior art and provide an injection mold which can overcome the problems or at least partially solve the problems and is demoulded by using a gas cap.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
The injection mold capable of demolding through the air cap comprises a top plate, an upper mold, a lower mold, a bottom plate, a core mold, an air supply pipe, an air supply valve, a push rod, a push head, a limiting plate, a mounting plate, a tension spring and a tension spring, wherein the upper mold is arranged on the top plate, the lower mold is arranged on the lower side of the upper mold, the bottom plate is arranged on the lower mold, the core mold is arranged on the lower mold, the air supply pipe is arranged on the core mold and the lower mold, the push rod is arranged in the air supply pipe in a sliding mode, the push head is fixedly arranged at the upper end of the push rod, the limiting plate is fixedly arranged on the push rod, the mounting plate is arranged on the lower mold, and the tension spring is fixedly arranged between the mounting plate and the limiting plate.
In order to discharge the hot air, further, exhaust pipes are arranged in the lower die and the core die, a second electric telescopic rod is fixedly connected in the exhaust pipe in the core die, and a sealing head is fixedly connected to the top of the second electric telescopic rod.
In order to prevent the ejector rod effort from being too big, further, one side of bed die is provided with the seal groove, sealed sliding connection has the sealing rod that matches with the limiting plate in the seal groove, one side fixedly connected with first electric telescopic handle of bed die, just the output and the sealing rod fixed connection of first electric telescopic handle.
In order to facilitate improvement of the sealing effect, further, the mounting plate is detachably connected with the lower die through a third bolt, and a sealing gasket is fixedly connected to the mounting plate.
Preferably, the lower die is fixedly connected with the bottom plate through a first bolt.
Further, the core mold is fixedly connected with the lower mold through a second bolt.
Compared with the prior art, the utility model provides the injection mold using the air-top demolding, which has the following beneficial effects:
1. this utilize injection mold of gas cap drawing of patterns, through the air supply pipe to the interior air feed of mandrel, the atmospheric pressure promotes the ejector pin and upwards slides in the air supply pipe, and the ejector pin drives the ejector pin and upwards jack-up injection molding to when the upward movement appears in the ejector pin, gas in the air supply pipe enters into between injection molding and the mandrel, thereby can accomplish the drawing of patterns under the effect of atmospheric pressure, prevents that the trace from appearing in the injection molding, and then has improved the processingquality of injection molding effectively.
2. This utilize injection mold of gas cap drawing of patterns through utilizing the mode drawing of patterns of gas cap combination ejector pin, compares the ejector pin drawing of patterns of simple adoption, and the even effort that the gas cap provided has dispersed ejection pressure, has avoided the injection molding to produce the vestige because of local atress is too big, has improved the surface quality of injection molding.
3. This utilize injection mold of gas cap drawing of patterns promotes sealing rod through first electric telescopic handle and slides in the seal groove, spacing to the limiting plate, when the ejector pin rises to certain position, limiting plate and sealing rod contact, block the limiting plate, make the ejector pin keep in current position, thereby prevent that the excessive jacking injection molding from causing the damage, stretch out the back at first electric telescopic handle, the second electric telescopic handle is controlled again and is driven the sealed head shrink, the gaseous exhaust pipe that passes through between injection molding and the mandrel that enters into this moment partially is discharged, thereby cool down injection molding effectively, after opening the settlement time, the second electric telescopic handle is controlled again and is stretched out and drive sealing head to blast pipe shutoff, control first electric telescopic handle drives sealing rod and resets, accomplish the drawing of patterns again this moment, prevent the damage of injection molding effectively.
The device has the advantages that the parts which are not involved in the device are the same as or can be realized by adopting the prior art, the ejection pressure is dispersed through the uniform acting force provided by the air cap, the trace of the injection molding part caused by overlarge local stress is avoided, the surface quality of the injection molding part is improved, and the damage of the injection molding part is effectively prevented.
Drawings
FIG. 1 is a schematic diagram of an injection mold using gas cap demolding according to the present utility model;
FIG. 2 is a schematic cross-sectional view of an injection mold using gas cap demolding according to the present utility model;
FIG. 3 is an enlarged schematic view of the injection mold at A in FIG. 2 using gas cap stripping according to the present utility model;
FIG. 4 is a schematic cross-sectional view of an injection mold using gas cap demolding according to the present utility model;
Fig. 5 is an enlarged schematic view of the injection mold using air-top demolding at B in fig. 4 according to the present utility model.
1, A top plate, 101, an upper die, 2, a bottom plate, 201, a lower die, 202, a first bolt, 203, an air supply pipe, 204, an air supply valve, 205, a sealing gasket, 3, a core die, 301, a second bolt, 302, a top rod, 303, a top head, 304, a limiting plate, 305, a mounting plate, 306, a third bolt, 307, a tension spring, 308, a sealing groove, 309, a sealing rod, 310, a first electric telescopic rod, 4, an exhaust pipe, 401, a second electric telescopic rod, 402 and a sealing head.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Embodiment 1 referring to fig. 1 to 5, an injection mold using gas cap demolding comprises a top plate (1), an upper mold (101) arranged on the top plate (1), a lower mold (201) arranged on the lower side of the upper mold (101), a bottom plate (2) arranged on the lower side of the lower mold (201), a core mold (3) arranged on the lower mold (201), a gas supply pipe (203) arranged on the core mold (3) and the lower mold (201), a gas supply valve (204) arranged in the gas supply pipe (203), a push rod (302) arranged in the gas supply pipe (203) in a sliding manner in the core mold (3), a plug (303) fixedly arranged at the upper end of the push rod (302), a limiting plate (304) fixedly arranged on the push rod (302), a mounting plate (305) arranged on the lower mold (201), and a tension spring (307) fixedly arranged between the mounting plate (305) and the limiting plate (304).
In injection molding, an upper mold (101) and a lower mold (201) are clamped, and then injection molding material is injected into a mold cavity, and the injection molding material is molded under the action of a core mold (3), wherein an injection molding pipe is not shown in the figure.
After injection molding cooling and forming, an air supply valve (204) is opened, air is supplied to the core mold (3) through an air supply pipe (203), an ejector rod (302) is pushed by air pressure to slide upwards in the air supply pipe (203), the ejector rod (302) drives an ejector head (303) to jack up the injection molding upwards, and when the ejector rod (302) moves upwards, air in the air supply pipe (203) enters between the injection molding and the core mold (3), so that demolding can be completed under the action of air pressure, the injection molding is prevented from being marked, and the processing quality of the injection molding is effectively improved.
Wherein, the external air supply mechanism is connected with the air supply pipe (203).
Compared with the mode of simply adopting the ejector rod (302) to carry out demoulding by combining the air top with the ejector rod (302), the uniform acting force provided by the air top disperses the ejection pressure, avoids the trace of the injection molding part caused by overlarge local stress, and improves the surface quality of the injection molding part.
Embodiment 2 referring to fig. 1 to 5, an injection mold using gas cap demolding is basically the same as embodiment 1, further, exhaust pipes 4 are provided in both the lower mold 201 and the core mold 3, a second electric telescopic rod 401 is fixedly connected in the exhaust pipe 4 located in the core mold 3, and a sealing head 402 is fixedly connected to the top of the second electric telescopic rod 401.
One side of the lower die 201 is provided with a sealing groove 308, a sealing rod 309 matched with the limiting plate 304 is connected in a sealing sliding manner in the sealing groove 308, one side of the lower die 201 is fixedly connected with a first electric telescopic rod 310, and the output end of the first electric telescopic rod 310 is fixedly connected with the sealing rod 309.
When the ejector rod 302 moves upwards, the sealing rod 309 is pushed to slide in the sealing groove 308 by the first electric telescopic rod 310, the limiting plate 304 is limited, when the ejector rod 302 rises to a certain position, the limiting plate 304 contacts with the sealing rod 309, the limiting plate 304 is clamped, the ejector rod 302 is kept at the current position, and damage caused by excessive lifting of an injection molding piece is prevented.
After the first electric telescopic rod 310 stretches out, the second electric telescopic rod 401 is controlled to drive the sealing head 402 to shrink, at the moment, part of gas entering between the injection molding piece and the core mold 3 is discharged through the exhaust pipe 4, so that the injection molding piece is effectively cooled, after the opening setting time, the second electric telescopic rod 401 is controlled to stretch out to drive the sealing head 402 to seal the exhaust pipe 4, the first electric telescopic rod 310 is controlled to drive the sealing rod 309 to reset, at the moment, demolding is finished, and damage to the injection molding piece is further effectively prevented.
The mounting plate 305 is detachably connected with the lower die 201 through a third bolt 306, and the sealing gasket 205 is fixedly connected to the mounting plate 305.
The lower die 201 is fixedly connected with the bottom plate 2 by a first bolt 202.
The core mold 3 is fixedly connected to the lower mold 201 by a second bolt 301.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520164267.8U CN223720089U (en) | 2025-01-24 | 2025-01-24 | An injection mold that utilizes air ejection for demolding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520164267.8U CN223720089U (en) | 2025-01-24 | 2025-01-24 | An injection mold that utilizes air ejection for demolding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223720089U true CN223720089U (en) | 2025-12-26 |
Family
ID=98134161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202520164267.8U Active CN223720089U (en) | 2025-01-24 | 2025-01-24 | An injection mold that utilizes air ejection for demolding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223720089U (en) |
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2025
- 2025-01-24 CN CN202520164267.8U patent/CN223720089U/en active Active
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