CN212312590U - Stub bar-free mold - Google Patents
Stub bar-free mold Download PDFInfo
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- CN212312590U CN212312590U CN202020045303.6U CN202020045303U CN212312590U CN 212312590 U CN212312590 U CN 212312590U CN 202020045303 U CN202020045303 U CN 202020045303U CN 212312590 U CN212312590 U CN 212312590U
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- injection molding
- molding pipe
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- mould
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Abstract
The utility model relates to the technical field of injection molds, in particular to a stub bar-free mold, which comprises a mold main body, wherein the outer surface of the mold main body is provided with an injection molding pipe communicated with the interior of the mold main body, a slide block matched with the interior of the injection molding pipe is arranged inside the injection molding pipe, the side surface of the slide block is in sliding connection with the inner side wall of the injection molding pipe, the top of the slide block is fixedly provided with a push-pull rod, the inner side wall of the bottom of the injection molding pipe is provided with an annular limiting bulge for limiting the slide block, and the side surface of the injection molding pipe is provided with; the injection molding pipe is arranged on the mold main body, the injection molding pipe is internally provided with a sliding block used for pushing residual raw materials inside the injection molding pipe to the mold main body, the side surface of the injection molding pipe is provided with an injection molding port, injection molding is carried out from the side surface of the injection molding pipe, the sliding block is pushed by a push rod to push redundant raw materials to an inner cavity of the mold after injection molding is completed, and residual stub bars cannot appear after solidification due to the fact that no redundant raw materials exist in the injection molding pipe.
Description
Technical Field
The utility model relates to an injection mold technical field specifically is a no stub bar mould.
Background
The injection molding process is a process method for injecting the packaging material into a mold at a very low injection pressure and rapidly curing and molding. The low-pressure injection molding process is widely applied to industries of electronic component PCBA packaging, precision cable components and the like. The process has the advantages that the pressure requirement of injection molding is low, and precise parts of the electronic element can be effectively protected from being damaged by the pressure of injection molding. And the structure of traditional low pressure injecting glue mould has been annotated and has had remaining stub bar to solidify in injection moulding mouthful department after gluing, and remaining stub bar needs to carry out artifical clearance, can not reuse moreover, causes the waste.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a no stub bar mould can make injection moulding's product not have the stub bar to avoid remaining stub bar to solidify and cause the waste in injection molding mouthful department.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model discloses a no stub bar mould, including the mould main part, the surface of mould main part be equipped with mould plastics the pipe with the inside intercommunication of mould main part, mould plastics the inside be equipped with mould plastics the inside slider that matches of intraduct, the side of slider with mould plastics the inside wall sliding connection of pipe, the fixed push-and-pull rod that is equipped with in top of slider, the inside wall of the intraduct bottom of moulding plastics is equipped with and is used for the restriction the spacing arch of annular of slider, the side of the pipe of moulding plastics is opened there is the mouth of moulding plastics.
Firstly, the sliding block is pulled to the position above the injection molding opening by the aid of the push-pull rod, plastic melt enters the interior of the mold main body from the injection molding opening on the side face of the injection molding hole, the sliding block is pushed to abut against the annular limiting protrusion by pushing the push-pull rod after a proper amount of plastic melt is injected, the annular limiting protrusion is arranged on the inner side wall of the bottom of the injection molding pipe, the phenomenon that the shape of a product in the mold is affected due to too deep penetration of the sliding block is avoided, too long stub bars cannot be left, and the excessive plastic melt in the injection molding pipe is removed by the sliding block, so that the stub bars cannot be left after solidification.
Further, the mould main part includes mould and bed die, mould and bed die are connected through setting up reference column on the bed die is as far as possible, the pipe of moulding plastics sets up in the top surface of mould.
Furthermore, an overflow hole is formed in the part, close to the connecting position of the injection molding pipe and the mold main body, of the injection molding pipe.
Further, the bottom surface of slider with when annular spacing arch butt, the bottom surface of slider with the inner chamber wall of last mould flushes and keeps the shape unanimous.
Further, the injection molding opening is used for connecting an injection molding mechanism.
Furthermore, a recovery container is arranged on the top surface of the upper die, and an opening of the recovery container is positioned right below the overflow hole.
The utility model has the advantages that: the utility model discloses a no stub bar mould sets up the pipe of moulding plastics in the mould main part, is used for pushing away the inside remaining raw materials of the intraduct of moulding plastics to the inside slider of mould main part in the inside setting of the pipe of moulding plastics simultaneously, and the mouth of moulding plastics is seted up to the side of the pipe of moulding plastics, moulds plastics from the side of the pipe of moulding plastics, promotes the slider with the push rod after the completion and pushes away unnecessary raw materials to mould cavity, because the intraductal unnecessary raw materials that does not have of moulding plastics, just can not appear remaining stub bar after solidifying.
Drawings
The invention will be further described with reference to the following figures and examples:
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged schematic view of a part of the structure of the present invention;
the reference numbers are as follows: 1-a mould main body, 2-an injection molding pipe, 3-a slide block, 4-a recovery container, 11-an upper mould, 12-a lower mould, 21-an annular limiting bulge, 22-an injection molding opening, 23-an overflow hole and 31-a push-pull rod.
Detailed Description
As shown in fig. 1: the stub bar-free mold comprises a mold main body 1, wherein the outer surface of the mold main body 1 is provided with an injection molding pipe 2 and an inner portion of the mold main body 1 in communication, the injection molding pipe 2 is internally provided with a sliding block 3 matched with the injection molding pipe 2, the side surface of the sliding block 3 is connected with the inner side wall of the injection molding pipe 2 in a sliding mode, the top of the sliding block 3 is fixedly provided with a push-pull rod 31, the inner side wall of the bottom of the injection molding pipe 2 is provided with an annular limiting protrusion 21 used for limiting the sliding block 3, and the side surface of the injection molding pipe 2.
Firstly, the sliding block 3 is pulled to be above the injection molding opening 22 by utilizing the push-pull rod 31, plastic melt enters the interior of the mold main body 1 from the injection molding opening 22 on the side surface of the injection molding hole, after a proper amount of plastic melt is injected, the push-pull rod 31 is pushed to push the sliding block 3 to abut against the annular limiting protrusion 21, the annular limiting protrusion 21 is arranged on the inner side wall of the bottom of the injection molding pipe 2, the phenomenon that the sliding block 3 is too deep to affect the shape of a product in the mold is avoided, meanwhile, too long stub bars cannot be left, and the excessive plastic solution in the injection molding pipe 2 is removed by the sliding block 3, so that the stub.
In this embodiment, the mold main body 1 includes an upper mold 11 and a lower mold 12, the upper mold 11 and the lower mold 12 are connected through a positioning column disposed on the lower mold 12, the injection molding pipe 2 is disposed on the top surface of the upper mold 11, and the general upper mold 11 and the general lower mold 12 are connected by opening the positioning column, which is prior art and therefore will not be described again.
In this embodiment, the part of the injection molding pipe 2 near the connection position with the mold main body 1 is provided with the overflow hole 23, the aperture of the overflow hole 23 is small, when there is a space in the inner cavity of the mold main body 1, the raw material will not overflow from the overflow hole 23 due to the liquid tension, and when the slide block 3 is filled to extrude the raw material in the injection molding pipe 2, the raw material will overflow from the overflow hole 23 under the action of the pressure, and the redundant raw material is discharged, so as to keep the proper amount of the raw material in the mold main body 1.
In this embodiment, when the bottom surface of the slider 3 abuts against the annular limiting protrusion 21, the bottom surface of the slider 3 is flush with the inner cavity wall of the upper die 11 and keeps the same shape, so as to keep the product inside the die in a good shape, and the appearance does not need to be manually trimmed after cooling and forming.
In this embodiment, the injection port 22 is used to connect an injection mechanism that injects the raw material into the cavity of the injection pipe 2 and the mold body 1 by means of low pressure.
In this embodiment, the top surface of the upper mold 11 is provided with the recovery container 4, the opening of the recovery container 4 is located under the overflow hole 23, and the recovery container 4 recovers the overflowed raw material, so that waste is avoided, and the situation that the raw material is adhered to the surface of the upper mold 11 and cannot be cleaned after solidification is avoided.
The utility model discloses a no stub bar mould, set up injection molding pipe 2 in mould main part 1, the inside setting of pipe 2 of moulding plastics is used for pushing away the inside remaining raw materials of pipe 2 of moulding plastics to the inside slider 3 of mould main part 1 simultaneously, the mouth 22 of moulding plastics is seted up to the side of pipe 2 of moulding plastics, mould plastics from the side of pipe 2 of moulding plastics, promote slider 3 with the push rod after the completion of moulding plastics and push away unnecessary raw materials to the mould inner chamber, because there is not unnecessary raw materials in the pipe 2 of moulding plastics, remaining stub bar just can not appear after solidifying, avoid extravagant, also need not the manual work to clear up the stub bar.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (6)
1. The utility model provides a no stub bar mould which characterized in that: the injection molding device comprises a die main body, the outer surface of the die main body is provided with an injection molding pipe and communicated with the inside of the die main body, a sliding block matched with the inside of the injection molding pipe is arranged inside the injection molding pipe, the side face of the sliding block is connected with the inner side wall of the injection molding pipe in a sliding mode, a push-pull rod is fixedly arranged at the top of the sliding block, an annular limiting protrusion used for limiting the sliding block is arranged on the inner side wall of the bottom of the injection molding pipe, and an injection molding opening is formed in the side.
2. The stub-free mold according to claim 1, wherein: the mould main part includes mould and bed die, it is in through setting up to go up mould and bed die the reference column on the bed die connects as far as possible, the pipe of moulding plastics sets up in the top surface of last mould.
3. The stub-free mold according to claim 2, wherein: and an overflow hole is formed in the part, close to the connecting position of the injection molding pipe and the mold main body, of the injection molding pipe.
4. The stub-free mold according to claim 2, wherein: the bottom surface of slider with during the spacing arch butt of annular, the bottom surface of slider with the inner chamber wall of last mould flushes and keeps the shape unanimous.
5. The stub-free mold according to claim 1, wherein: the injection molding port is used for connecting an injection molding mechanism.
6. A stub bar-free die as claimed in claim 3, wherein: and a recovery container is arranged on the top surface of the upper die, and an opening of the recovery container is positioned right below the overflow hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020045303.6U CN212312590U (en) | 2020-01-09 | 2020-01-09 | Stub bar-free mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020045303.6U CN212312590U (en) | 2020-01-09 | 2020-01-09 | Stub bar-free mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212312590U true CN212312590U (en) | 2021-01-08 |
Family
ID=74030423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020045303.6U Active CN212312590U (en) | 2020-01-09 | 2020-01-09 | Stub bar-free mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212312590U (en) |
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2020
- 2020-01-09 CN CN202020045303.6U patent/CN212312590U/en active Active
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