CN212372598U - Flash structure and gas assist mould - Google Patents
Flash structure and gas assist mould Download PDFInfo
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- CN212372598U CN212372598U CN202020951711.8U CN202020951711U CN212372598U CN 212372598 U CN212372598 U CN 212372598U CN 202020951711 U CN202020951711 U CN 202020951711U CN 212372598 U CN212372598 U CN 212372598U
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Abstract
The utility model discloses a flash structure and an air-assisted die using the same, wherein the flash structure comprises a flash collecting structure, an adjusting structure for adjusting the volume of the flash collecting structure and a control switch for controlling the flash collecting structure to be opened or closed; the flash collecting structure is provided with a feed inlet, and the control switch is arranged at the feed inlet; the adjusting structure is arranged at one end of the flash collecting structure, which is far away from the feeding hole. The flash collection structure in this flash structure can be closed and adjust, can solve prior art completely and in the in-process of moulding plastics, and the product is not filled full, and the flash just begins, leads to the not up to standard technical problem of product of production.
Description
Technical Field
The utility model relates to a gas is assisted and is moulded plastics technical field, especially relates to a mould is assisted to flash structure and gas.
Background
The gas-assisted injection molding technology is widely applied to the production process of hollow plastic products, most gas-assisted molds have flash structures, the existing flash structures are characterized in that flash grooves are designed at the tail ends of product cavities, and movable adjusting blocks are used for controlling the volume of flash. Namely, the overflow trough of the existing air-assisted mold cannot be closed, and the adjusted volume is inaccurate. Often in the process of injection molding, the product is not filled, and flash begins, so that the produced product does not reach the standard, and resource waste is caused.
SUMMERY OF THE UTILITY MODEL
The utility model provides a to the not enough of above-mentioned prior art, the utility model provides a mould is assisted to flash structure and gas that uses this flash structure, and the flash collection structure in this flash structure can be closed and adjust, can solve the problem that prior art exists completely.
The specific technical scheme is as follows: a flash structure comprises a flash collecting structure, an adjusting structure for adjusting the volume of the flash collecting structure and a control switch for controlling the flash collecting structure to be turned on or turned off; the flash collecting structure is provided with a feed inlet, and the control switch is arranged at the feed inlet; the adjusting structure is arranged at one end of the flash collecting structure, which is far away from the feeding hole.
Furthermore, the control switch comprises an ejector sleeve with a hollow structure, and the ejector sleeve is communicated with the flash collecting structure; a cylinder ejecting needle capable of penetrating through the cylinder is arranged in the cylinder ejecting, and the cylinder ejecting needle is connected with the inner wall of the cylinder ejecting in a force limiting manner; one end of the ejector sleeve needle, which is far away from the flash collecting structure, is provided with a driving structure, and the driving structure is used for driving the ejector sleeve needle to move in the ejector sleeve along the length direction of the ejector sleeve.
Furthermore, the driving structure comprises a hydraulic oil cylinder and an oil cylinder connector, and the ejector pin is fixedly connected with a piston rod of the hydraulic oil cylinder through the oil cylinder connector.
Further, the flash collection structure includes hollow structure's flash regulation pole, and the flash is adjusted the pole and is set up in the one end of keeping away from the feed inlet, and the flash is adjusted the pole inner wall and is equipped with the internal thread.
Further, the adjusting structure comprises an adjusting part and a fixing device for fixing the flash adjusting rod; the adjusting part is arranged in the flash adjusting rod and can move along the length direction of the flash adjusting rod.
Furthermore, the adjusting part is an adjusting screw rod, and the adjusting screw rod is in threaded connection with the internal thread of the flash adjusting rod; the adjusting screw is sleeved with a positioning nut, and the positioning nut is in threaded connection with the adjusting screw.
Furthermore, the fixing device comprises a flash rod fixing piece, a through hole is formed in the flash rod fixing piece, a limiting step is arranged in the through hole, and one end, far away from the feeding hole, of the flash adjusting rod is connected with the limiting step; the through hole comprises a connecting end, an internal thread is arranged on the connecting end, and the adjusting screw rod is inserted into the through hole and is in threaded connection with the flash rod fixing piece.
Furthermore, the adjusting structure comprises a flash adjusting rod, an adjusting screw rod and a flash rod fixing piece, and the flash adjusting rod is connected with the flash collecting structure; the inside through-hole that is equipped with of flash pole mounting is equipped with the link in the through-hole, and the link is equipped with the internal thread, and flash is adjusted the pole and is inserted in the through-hole and is connected with flash pole mounting limit of force.
Furthermore, a positioning nut is sleeved on the adjusting screw rod, and the adjusting screw rod is inserted into the through hole to be connected with the connecting end through threads and fixedly connected with the flash adjusting rod.
Furthermore, the flash collecting structure is arranged in a slender cylindrical shape, so that the cooling time in the production process can be effectively reduced.
On the other hand, the utility model provides a gas-assisted mould, which comprises the flash structure, a product cavity and a nitrogen channel, wherein the nitrogen channel is communicated with the product cavity and is used for blowing gas into the product cavity in the blowing stage; the flash collecting structure is connected with the product cavity, and the control switch is used for controlling the connection or the disconnection of the flash collecting structure and the product cavity.
The utility model provides a mould is assisted to flash structure and gas compares with prior art, possesses following beneficial effect: during injection molding, the flash collecting structure is closed through the control switch, so that the situation that the rubber material enters the flash collecting structure during injection molding to cause pressure loss and rubber material loss is prevented; when blowing, collect the structure through control switch to the flash and open, unnecessary sizing material can get into the flash smoothly and collect the structure, the utility model discloses can accurate control blow time and flash start time keep unanimous, improved the precision of moulding plastics. On the other hand, the volume of the flash collecting structure can be accurately adjusted by the flash adjusting rod, and the thickness of the product is effectively controlled. Meanwhile, the flash collecting structure is arranged to be in a long and thin cylindrical shape, so that the cooling time in the production process can be reduced, and the production efficiency is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic view of another perspective structure of the present invention;
FIG. 3 is a sectional view taken along line A-A of FIG. 2 with the feed gap closed;
FIG. 4 is an enlarged view of portion C of FIG. 3;
FIG. 5 is a sectional view A-A of FIG. 2 with the feed opening open;
FIG. 6 is an enlarged view of portion B of FIG. 5;
FIG. 7 is a schematic view of an adjustment structure in the first embodiment;
fig. 8 is a schematic view of an adjustment structure in the second embodiment.
Description of the drawings: 1. a ejector sleeve; 2. a sleeve ejecting needle; 3. adjusting the screw rod; 4. positioning a nut; 5. a flash rod securing member; 51. a limiting step; 52. a connecting end; 6. a flash tank; 61. a feed inlet; 7. a flash adjusting rod; 8. a cylinder connector; 9. an oil cylinder; 10. a nitrogen channel; 11. and (4) forming a product cavity.
Detailed Description
To further illustrate the technical means and technical effects of the present invention, the following describes a preferred embodiment of the present invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-7, a flash structure comprises a flash collecting structure, a hollow driver barrel 1, a driver barrel needle 2, an adjusting screw 3, a positioning nut 4 and a flash rod fixing member 5. The flash collecting structure comprises a flash tank 6 and a hollow-structure flash adjusting rod 7, the flash tank 6 is in a long and thin cylindrical shape, one end of the flash tank is provided with a feed port 61, the other end of the flash tank is connected with the flash adjusting rod 7, and the inner wall of the flash adjusting rod 7 is provided with internal threads. Department's section of thick bamboo 1 sets up in the feed inlet 61 department of flash collection structure and collects the structure intercommunication with the flash, and department's section of thick bamboo needle 2 passes department's section of thick bamboo 1 and is connected with department's section of thick bamboo 1 limit power, and limit power is connected under the condition that outside effort reaches certain degree, just can produce the connected mode of mutual motion between two parts. The ejector pin 2 is fixedly connected with a piston of the oil cylinder 9 through an oil cylinder connector 8, and the oil cylinder 9 drives the ejector pin 2 to ascend or descend during work so as to close or open the flash collecting structure feed port 61.
The positioning nut 4 is sleeved on the adjusting screw rod 3 and is in threaded connection with the adjusting screw rod 3. The flash pole mounting 5 is used for fixed flash regulation pole 7, and inside is equipped with the through-hole, is equipped with spacing step 51 in the through-hole, and flash regulation pole 7 is kept away from the one end of flash tank 6 and is met with spacing step 51, and the through-hole is including being equipped with internal screw thread link 52, adjusting screw 3 respectively with flash pole mounting 5 and flash regulation pole 7 threaded connection. Sleeving a positioning nut 4 on the adjusting screw rod 3, inserting the flash adjusting rod 7 into the through hole until the flash adjusting rod is connected with the limiting step 51, enabling the flash adjusting rod 7 to be in interference fit with the inner wall of the through hole, then inserting the adjusting screw rod 3 from the connecting end 52 of the through hole, and sequentially connecting the flash rod fixing piece 5 and the flash adjusting rod 7 in a threaded manner; when the screw is screwed into the preset position, the positioning nut 4 is rotated, so that the positioning nut 4 is connected with the flash rod fixing piece 5, and the purpose of positioning the adjusting screw rod 3 is achieved. In production, when the volume of the flash collecting structure needs to be adjusted, the flash collecting structure can be realized only by rotating the adjusting screw rod 3 clockwise or anticlockwise.
In another embodiment, as shown in fig. 8, based on the above structure, the flash adjusting rod 7 is replaced by a solid structure, the positioning nut 4 is sleeved on the adjusting screw rod 3, the flash adjusting rod 7 is inserted into the through hole of the flash rod fixing member 5 to be connected with the through hole in a force-limiting manner, and then the adjusting screw rod 3 is inserted from the connecting end 52 of the through hole to be sequentially connected with the flash rod fixing member 5 in a threaded manner and fixedly connected with the flash adjusting rod 7, it is obvious that the existing fixing connection methods are all suitable for connecting the flash adjusting rod 7 and the adjusting screw rod 3, such as, for example, snap connection, threaded connection, welding, and the like; when the adjusting screw reaches a preset position, the positioning nut 4 is rotated, so that the positioning nut 4 is connected with the flash rod fixing piece 5, and the purpose of positioning the adjusting screw 3 is achieved. In production, the adjusting screw rod 3 is rotated clockwise or anticlockwise to drive the flash adjusting rod 7 to move in the through hole in the flash rod fixing part 5, so that the volume of the flash collecting structure is adjusted.
A gas-assisted mold comprises the flash structure, a product cavity 11 and a nitrogen channel 10, wherein a flash groove 3 in the flash collecting structure is connected with the product cavity 11, and the nitrogen channel 10 is communicated with the product cavity 11. The production process using the gas-assisted mold is as follows:
1. the hydraulic oil cylinder 9 drives the ejector pin 2 to slide in the ejector 1 to close the feed port 61.
2. The injection molding machine starts to perform injection molding, and the rubber enters the mold and is filled with the product cavity 11 all the time.
3. The injection molding machine stops injection molding, the nitrogen channel 10 starts to inject nitrogen into the product cavity 11, the oil cylinder 9 drives the ejector pin 2 to slide in the ejector 1 while injecting the nitrogen, the feed port 61 is opened, and the rubber enters the flash collection structure along the feed port 61 under the blowing of the nitrogen.
4. After the flash is filled in the flash collecting structure, if the thickness of the blowing position of the product needs to be adjusted, the distance of the adjusting screw rod 3 needing to move is calculated according to the adjusted thickness of the product, and the adjusting screw rod 3 is rotated to achieve the purpose of adjusting the thickness of the product.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Claims (10)
1. A flash structure is characterized by comprising a flash collecting structure, an adjusting structure for adjusting the volume of the flash collecting structure and a control switch for controlling the flash collecting structure to be turned on or turned off;
the flash collecting structure is provided with a feeding hole, and the control switch is arranged at the feeding hole;
the adjusting structure is arranged at one end, far away from the feeding hole, of the flash collecting structure.
2. The flash structure of claim 1, wherein the control switch comprises a cartridge having a hollow structure, the cartridge being in communication with the flash collection structure;
a barrel driving needle capable of penetrating through the barrel is arranged in the barrel driving needle and is in force limiting connection with the inner wall of the barrel driving needle;
and a driving structure for driving the ejector pin to move in the ejector cylinder along the length direction of the ejector cylinder is arranged at one end of the ejector pin, which is far away from the flash collecting structure.
3. The flash structure of claim 2 wherein the drive structure comprises a hydraulic cylinder and a cylinder connector, and the ejector pin is fixedly connected with a piston rod of the hydraulic cylinder through the cylinder connector.
4. The flash structure of any of claims 1-3, wherein the flash collecting structure comprises a flash regulating rod with a hollow structure, the flash regulating rod is arranged at one end far away from the feed inlet, and the inner wall of the flash regulating rod is provided with internal threads.
5. The flash structure of claim 4, wherein the adjusting structure comprises an adjusting member and a fixing means for fixing the flash adjusting lever;
the adjusting part is arranged in the flash adjusting rod and can move along the length direction of the flash adjusting rod.
6. The flash structure of claim 5, wherein the adjustment member is an adjustment screw threadedly coupled to the internal threads of the flash adjustment stem;
the adjusting screw is sleeved with a positioning nut, and the positioning nut is in threaded connection with the adjusting screw.
7. The flash structure of claim 6, wherein the fixture comprises a flash rod holder, the flash rod holder has a through hole therein, the through hole has a stop step therein, and the end of the flash rod away from the feed inlet is connected to the stop step;
the through hole comprises a connecting end, the connecting end is provided with an internal thread, and the adjusting screw rod is inserted into the through hole and is in threaded connection with the flash rod fixing piece.
8. The flash structure of any of claims 1-3, wherein the adjustment structure comprises a flash adjustment bar, an adjustment screw, and a flash bar fixture, the flash adjustment bar interfacing with the flash collection structure;
the flash pole mounting is characterized in that a through hole is formed in the flash pole mounting, a connecting end is arranged in the through hole, an internal thread is arranged at the connecting end, and the flash adjusting pole is inserted into the through hole and connected with the flash pole mounting in a force-limiting manner.
9. The flash structure of claim 8, wherein the adjusting screw is sleeved with a positioning nut, and the adjusting screw is inserted into the through hole to be in threaded connection with the connecting end and fixedly connected with the flash adjusting rod.
10. A gas-assisted mould comprising a flash structure according to any one of claims 1 to 9, further comprising a product cavity and a nitrogen channel, the nitrogen channel being in communication with the product cavity;
the flash collecting structure is connected with the product cavity, and the control switch can control the connection or the disconnection of the flash collecting structure and the product cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020951711.8U CN212372598U (en) | 2020-05-29 | 2020-05-29 | Flash structure and gas assist mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020951711.8U CN212372598U (en) | 2020-05-29 | 2020-05-29 | Flash structure and gas assist mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212372598U true CN212372598U (en) | 2021-01-19 |
Family
ID=74179223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020951711.8U Active CN212372598U (en) | 2020-05-29 | 2020-05-29 | Flash structure and gas assist mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212372598U (en) |
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2020
- 2020-05-29 CN CN202020951711.8U patent/CN212372598U/en active Active
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Address after: 518000 No. 101, 17 and 15, building 1, No. 17, East Xinfa Road, Xinqiao community, Baoan District, Shenzhen City, Guangdong Province Patentee after: Senjun precision manufacturing (Shenzhen) Co.,Ltd. Address before: 518000 No. 101, 17 and 15, building 1, No. 17, East Xinfa Road, Xinqiao community, Baoan District, Shenzhen City, Guangdong Province Patentee before: SENJUN EXCELLENT PREC MOLD SHENZHEN Co.,Ltd. |