CN210940337U - Nitrogen ejection device for injection molding - Google Patents
Nitrogen ejection device for injection molding Download PDFInfo
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- CN210940337U CN210940337U CN201921829209.3U CN201921829209U CN210940337U CN 210940337 U CN210940337 U CN 210940337U CN 201921829209 U CN201921829209 U CN 201921829209U CN 210940337 U CN210940337 U CN 210940337U
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Abstract
The utility model discloses a nitrogen ejection device for injection molding, including back matrix bottom plate, back template, front matrix bottom plate, core, holding ring, upper airflow channel, gas cap subassembly, installation cavity, water-cooling hole, lower airflow channel and air inlet, back matrix bottom plate top fixed mounting has the back template, back template top central point department imbeds perpendicularly and installs the core, front template bottom fixed mounting has the front template, front template bottom position in die cavity bilateral symmetry position and core top bilateral symmetry position all are provided with two sets of symmetrical gas cap subassemblies, gas cap subassembly sets up respectively in the installation cavity that front template bottom both sides and core top both sides were seted up, the position department that corresponds the installation cavity outside the front template bottom plate sets up the upper airflow channel of installation cavity; the utility model discloses, replace thimble or kicking block ejecting mode through the gas cap, can not leave the thimble seal at product ejection face, improve product quality.
Description
Technical Field
The utility model relates to an injection molding drawing of patterns technical equipment field specifically is a nitrogen gas ejecting device for injection molding.
Background
Most of plastic parts are ejected by ejector pins or ejector blocks, ejector pin marks can be left on the ejection surfaces of products in the ejection modes, customers do not allow the ejector pin marks for some special plastic parts, meanwhile, the left ejector pin marks can cause unqualified products, and the design of the nitrogen ejection device for the injection molding parts is necessary for overcoming the defects.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a nitrogen gas ejecting device for injection molding replaces thimble or kicking block ejecting mode through the gas cap, can not leave the thimble seal at product ejection face, improves product quality.
The purpose of the utility model can be realized by the following technical scheme:
a nitrogen ejection device for injection molding parts comprises a rear mold bottom plate, a rear mold plate, a front mold bottom plate, a mold core, a positioning ring, an upper airflow channel, an air cap component, a mounting cavity, a water cooling hole, a lower airflow channel and an air inlet, wherein the rear mold plate is fixedly mounted at the top of the rear mold bottom plate, the mold core is vertically embedded and mounted at the center of the top of the rear mold plate, the front mold plate is fixedly mounted at the bottom of the front mold bottom plate, two groups of symmetrical air cap components are respectively arranged at the symmetrical positions of two sides of the mold cavity and the symmetrical positions of two sides of the top of the mold core at the bottom of the front mold bottom plate, the air cap components are respectively arranged in the mounting cavities arranged at two sides of the bottom of the front mold bottom plate and two sides of the top of the mold core, the upper airflow channel communicated with the mounting cavity is arranged at the position corresponding to, the lower airflow channel is communicated to the top of the core along the central line of the core, and the lower airflow channel is communicated with the mounting cavity on the core;
the gas cap component comprises a cylinder body, a chute, a bolt, a cylindrical movable insert, a circular truncated cone-shaped movable insert, a reset spring and a fixed cavity, the cylinder body is placed in the installation cavity, a circular truncated cone-shaped groove is formed in the center of one end of the cylinder body, the circular truncated cone-shaped movable insert is clamped in the circular truncated cone-shaped groove, a cylindrical groove is formed in the center of the top edge of the circular truncated cone-shaped groove in the axial direction of the cylinder body, a fixed cavity is formed in the center of the other end of the cylinder body in the axial direction, the end face of the cylinder body is symmetrically provided with a chute on each side of the fixed cavity, one end of the cylindrical movable insert sequentially penetrates through the cylindrical groove and the fixed cavity, the other end of the cylindrical movable insert is fixedly connected with the center of the circular truncated cone-shaped movable insert, the bolt penetrates through the end of the cylindrical movable insert, the two ends of the, and the reset spring is sleeved on the plug pin.
As a further aspect of the present invention: the bottom end of the mold core vertically penetrates through the rear mold plate and is embedded into the center of the rear mold bottom plate.
As a further aspect of the present invention: the locating ring is installed at the center of the top of the front template, and a plurality of water cooling holes penetrating to the other side are formed in one side of the front template.
As a further aspect of the present invention: the center of the front template is provided with a cavity in a penetrating way, and the core extends into the cavity and extends into the cavity.
The utility model has the advantages that: nitrogen is input through an upper airflow channel and a lower airflow channel respectively, nitrogen obtained by the lower airflow channel is input through an air inlet, the nitrogen is introduced to extrude and push the bolt, the bolt slides in the sliding groove, the cylindrical movable insert is driven to move, the reset spring is stressed and contracted, the cylindrical movable insert is pushed to be separated from the circular table-shaped groove through the cylindrical movable insert, a gap is formed between the cylindrical movable insert and the side wall of the circular table-shaped groove, the nitrogen flows out through the gap to eject an injection molding part in an air jacking mode, the input of the nitrogen is cancelled, the elastic action of the reset spring is improved, the bolt is driven to be restored to an initial position, the circular table-shaped movable insert is in box lifting contact with the circular table-shaped groove, and the structure can replace an ejector pin or an ejector block ejection mode through the air jacking, so that an ejector pin mark can not be.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall internal structure of the present invention;
FIG. 2 is a schematic structural view of the gas cap assembly of the present invention;
in the figure: 1. a rear mold base plate; 2. a rear template; 3. a front template; 4. a front mold base plate; 5. a core; 6. a positioning ring; 7. an upper airflow channel; 8. a gas cap assembly; 81. a cylinder; 82. a chute; 83. a bolt; 84. a cylindrical movable insert; 85. a movable insert in a shape of a circular truncated cone; 86. a return spring; 87. a fixed cavity; 9. a mounting cavity; 10. water cooling holes; 11. a lower airflow channel; 12. an air inlet.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
As shown in figure 1-2, a nitrogen ejection device for injection molding parts comprises a rear mold base plate 1, a rear mold plate 2, a front mold plate 3, a front mold base plate 4, a mold core 5, a positioning ring 6, an upper air flow channel 7, an air cap component 8, a mounting cavity 9, a water cooling hole 10, a lower air flow channel 11 and an air inlet 12, wherein the rear mold plate 2 is fixedly arranged at the top of the rear mold base plate 1, the mold core 5 is vertically embedded and mounted at the central position of the top of the rear mold plate 2, the front mold plate 3 is fixedly mounted at the bottom of the front mold base plate 4, two groups of symmetrical air cap components 8 are respectively arranged at the symmetrical positions of the two sides of the mold cavity and the symmetrical positions of the two sides of the top of the mold core 5 at the bottom of the front mold base plate 4, the air cap components 8 are respectively arranged in the mounting cavities 9 formed at the two sides of the bottom of the front mold base plate 4, the rear die bottom plate 1 is provided with an air inlet 12, a lower air flow channel 11 is arranged at the position of the rear die bottom plate 1 corresponding to the air inlet 12, the lower air flow channel 11 is communicated to the top of the die core 5 along the central line of the die core 5, and the lower air flow channel 11 is communicated with the mounting cavity 9 on the die core 5;
the gas cap component 8 comprises a cylinder 81, a sliding groove 82, a bolt 83, a cylindrical movable insert 84, a circular table-shaped movable insert 85, a return spring 86 and a fixed cavity 87, the cylinder 81 is placed in the installation cavity 9, a circular table-shaped groove is formed in the center of one end of the cylinder 81, the circular table-shaped groove is clamped with the circular table-shaped movable insert 85, a cylindrical groove is formed in the center of the top edge of the circular table-shaped groove along the axial direction of the cylinder 81, a fixed cavity 87 is formed in the center of the other end of the cylinder 81 along the axial direction, a sliding groove 82 is symmetrically formed in each of the two sides of the fixed cavity 87 on the end surface of the cylinder 81, one end of the cylindrical movable insert 84 sequentially penetrates through the cylindrical groove and the fixed cavity 87, the other end of the cylindrical movable insert 84 is fixedly connected with the center of the top edge 85 of the circular table-shaped movable insert 84, the bolt 83 penetrates through the end of the cylindrical movable insert 84, and the return spring 86 is sleeved on the bolt 83;
the bottom end of the mold core 5 vertically penetrates through the rear mold plate 2 and is embedded into the center of the rear mold bottom plate 1, so that the installation is facilitated;
wherein, the positioning ring 6 is arranged at the center of the top of the front template 3, and a plurality of water cooling holes 10 penetrating to the other side are arranged at one side of the front template 3, which is beneficial to connecting a water cooling device for cooling;
wherein, a cavity is arranged at the center of the front template 3 in a penetrating way, and the mold core 5 extends into the cavity and extends into the cavity to form an injection molding piece;
the circular truncated cone-shaped movable inserts 85 in the two groups of gas cap components 8 on the mold core 5 face upwards, and the circular truncated cone-shaped movable inserts 85 in the two groups of gas cap components 8 on the front mold bottom plate 4 face downwards, so that ejection of injection molding parts is facilitated.
The utility model discloses a theory of operation: nitrogen is respectively input through the upper airflow channel 7 and the lower airflow channel 11, nitrogen obtained by the lower airflow channel 11 is input through the air inlet 12, the nitrogen is introduced to extrude and push the bolt 83, the bolt 83 slides in the sliding groove 82, the cylindrical movable insert 84 is driven to move, the reset spring 86 is stressed and contracted, the cylindrical movable insert 84 pushes the circular table-shaped movable insert 85 to be separated from the circular table-shaped groove, a gap is formed between the circular table-shaped movable insert 85 and the side wall of the circular table-shaped groove, the nitrogen flows out through the gap to eject an injection molding piece in an air jacking mode, the input of the nitrogen is cancelled, the elastic force of the reset spring 86 is improved, the bolt 83 is driven to be restored to the initial position, the circular table-shaped movable insert 85 is in contact with the circular table-shaped groove lifting box, and the structure can replace an ejector pin or ejector block ejecting mode through the air jacking, so that no ejector pin.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (4)
1. The nitrogen ejection device for the injection molding part is characterized by comprising a rear mold bottom plate (1), a rear mold plate (2), a front mold plate (3), a front mold bottom plate (4), a mold core (5), a positioning ring (6), an upper air flow channel (7), an air cap component (8), a mounting cavity (9), a water cooling hole (10), a lower air flow channel (11) and an air inlet (12), wherein the rear mold plate (2) is fixedly installed at the top of the rear mold bottom plate (1), the mold core (5) is vertically embedded and installed at the central position of the top of the rear mold plate (2), the front mold plate (3) is fixedly installed at the bottom of the front mold bottom plate (4), two groups of symmetrical air cap components (8) are respectively arranged at the symmetrical positions of two sides of the mold cavity and at the symmetrical positions of two sides of the top of the mold core (5), the air cap components (8) are respectively arranged in the mounting cavities (9) formed at two sides of the bottom of the front mold bottom of the, an upper airflow channel (7) communicated with the installation cavity (9) is formed in the position, corresponding to the installation cavity (9), on the outer side of the front mold bottom plate (4), an air inlet (12) is formed in the rear mold bottom plate (1), a lower airflow channel (11) is formed in the position, corresponding to the air inlet (12), of the rear mold bottom plate (1), the lower airflow channel (11) is communicated to the top of the mold core (5) along the center line of the mold core (5), and the lower airflow channel (11) is communicated with the installation cavity (9) in the mold core (5);
the gas cap component (8) comprises a cylinder (81), a sliding groove (82), a bolt (83), a cylindrical movable insert (84), a circular table-shaped movable insert (85), a reset spring (86) and a fixed cavity (87), wherein the cylinder (81) is placed in the installation cavity (9), a circular table-shaped groove is formed in the center of one end of the cylinder (81), the circular table-shaped groove is connected with the circular table-shaped movable insert (85) in a clamping manner, a cylindrical groove is formed in the center of the top edge of the circular table-shaped groove in the axial direction of the cylinder (81), a fixed cavity (87) is formed in the center of the other end of the cylinder (81) in the axial direction, the sliding grooves (82) are symmetrically formed in the two sides of the end face of the cylinder (81) positioned in the fixed cavity (87), one end of the cylindrical movable insert (84) sequentially penetrates through the cylindrical groove and the fixed cavity (87), the other end of the cylindrical movable insert (84) is fixedly connected with the center of the, the bolt (83) runs through the end of the cylindrical movable insert (84), two ends of the bolt (83) extend into one sliding groove (82) respectively, a return spring (86) is arranged between one side of the bolt (83) and the inner wall of the fixed cavity (87), and the return spring (86) is sleeved on the bolt (83).
2. The nitrogen gas ejection device for injection-molded parts according to claim 1, wherein the bottom end of the core (5) vertically penetrates through the rear mold plate (2) and is inserted into the center of the rear mold base plate (1).
3. The nitrogen ejection device for the injection molded parts as claimed in claim 1, wherein a positioning ring (6) is installed at the center of the top of the front mold plate (3), and a plurality of water cooling holes (10) penetrating to the other side are formed in one side of the front mold plate (3).
4. The nitrogen ejection device for the injection molded parts according to claim 1, wherein a cavity is arranged in the center of the front mold plate (3) in a penetrating manner, and the core (5) extends into the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921829209.3U CN210940337U (en) | 2019-10-29 | 2019-10-29 | Nitrogen ejection device for injection molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921829209.3U CN210940337U (en) | 2019-10-29 | 2019-10-29 | Nitrogen ejection device for injection molding |
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| Publication Number | Publication Date |
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| CN210940337U true CN210940337U (en) | 2020-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921829209.3U Active CN210940337U (en) | 2019-10-29 | 2019-10-29 | Nitrogen ejection device for injection molding |
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| CN (1) | CN210940337U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110587936A (en) * | 2019-10-29 | 2019-12-20 | 常州市武进升越模塑有限公司 | Nitrogen ejection device for injection molding |
| CN111730801A (en) * | 2020-07-20 | 2020-10-02 | 潍坊正达实业有限公司 | Automatic demoulding type double-color continuous injection mould |
| JP7495146B2 (en) | 2022-07-05 | 2024-06-04 | 浦谷商事株式会社 | Mold fittings |
-
2019
- 2019-10-29 CN CN201921829209.3U patent/CN210940337U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110587936A (en) * | 2019-10-29 | 2019-12-20 | 常州市武进升越模塑有限公司 | Nitrogen ejection device for injection molding |
| CN111730801A (en) * | 2020-07-20 | 2020-10-02 | 潍坊正达实业有限公司 | Automatic demoulding type double-color continuous injection mould |
| CN111730801B (en) * | 2020-07-20 | 2021-01-05 | 潍坊正达实业有限公司 | Automatic demoulding type double-color continuous injection mould |
| JP7495146B2 (en) | 2022-07-05 | 2024-06-04 | 浦谷商事株式会社 | Mold fittings |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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Address after: 213000 workshop 2 and 3, west side of East Avenue, 5 Longyu Road, Wujin national high tech Industrial Development Zone, Changzhou City, Jiangsu Province Patentee after: Changzhou Shengyue Molding Co., Ltd Address before: 213000 No.8 longhui Road, Wujin high tech Industrial Development Zone, Changzhou City, Jiangsu Province Patentee before: CHANGZHOU WUJIN SHENGYUE MOULD PLASTIC Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 213000 workshop 2 and 3, west side of East Avenue, 5 Longyu Road, Wujin national high tech Industrial Development Zone, Changzhou City, Jiangsu Province Patentee after: Changzhou Shengyue Molding Co.,Ltd. Address before: 213000 workshop 2 and 3, west side of East Avenue, 5 Longyu Road, Wujin national high tech Industrial Development Zone, Changzhou City, Jiangsu Province Patentee before: Changzhou Shengyue Molding Co.,Ltd. |