CN213533600U - Mould structure for controlling warping of thin-wall plastic part - Google Patents
Mould structure for controlling warping of thin-wall plastic part Download PDFInfo
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- CN213533600U CN213533600U CN202022496927.2U CN202022496927U CN213533600U CN 213533600 U CN213533600 U CN 213533600U CN 202022496927 U CN202022496927 U CN 202022496927U CN 213533600 U CN213533600 U CN 213533600U
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Abstract
A mould structure for controlling warping of a thin-wall plastic part is characterized in that a telescopic rod is arranged on a base, the telescopic rod is connected with a top plate, a lower mould bottom block and a lower mould frame are arranged on the base, a sliding block is arranged on the side surface of the lower mould frame, a fixed support fixes a threaded rod, the sliding block is sleeved on the threaded rod, the bottom of the threaded rod is embedded in the base, a rotating shaft is arranged in the base, driving wheels are arranged at the end part of the rotating shaft and the bottom end of the threaded rod, a lifting motor is arranged beside the rotating shaft, and the rotating shaft and the lifting motor are both provided with driving; the roof has inlayed last mould, be equipped with the clamp plate on going up the mould, the clamp plate supports coolant tank, be equipped with condenser tube in going up the mould, condenser tube connects coolant tank, the tip of clamp plate is equipped with fixed establishment. The utility model discloses being equipped with condenser tube and avoiding uncooled warping that leads to, making the bed die bottom block support and mould the piece, the activity of bed die frame is avoided the uneven drawing of patterns of atress in coordination to warp that leads to.
Description
Technical Field
The utility model relates to the technical field of mold, especially, relate to a control thin wall moulds a warping mould structure.
Background
The warpage is the surface distortion of the plastic part which is not formed according to the designed shape, and the warpage of the plastic part is caused by the uneven shrinkage of the formed plastic part. If the whole plastic part has uniform shrinkage, the plastic part cannot warp after being deformed, and only the size is reduced; however, it is a very complicated task to achieve low or uniform shrinkage due to the interactive effects of many factors, such as molecular chain/fiber orientation, mold cooling, mold design and forming conditions.
The mould is various moulds and tools for obtaining required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production. In short, a mold is a tool used to make a shaped article, the tool being made up of various parts, different molds being made up of different parts. The processing of the appearance of an article is realized mainly through the change of the physical state of a formed material. The element has the name of "industrial mother".
In the prior art, in the process of taking out the finished product, the position of the ejection object is uneven or the stress area is small, and the ejection object can cause the finished product to generate certain warping deformation. In addition, the finished product still has certain heat and is not completely cooled, and the ejected object is stressed to generate warping deformation when being ejected.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects of the prior art and providing a mould structure for controlling the warping of a thin-wall plastic part.
A mould structure for controlling warping of a thin-wall plastic part is characterized by comprising a base, wherein a telescopic rod is arranged on the base perpendicularly to the base and is connected with a top plate, a lower mould bottom block is arranged on the base and is sleeved with a lower mould frame, a sliding block is arranged on the side face of the lower mould frame, a threaded rod perpendicular to the base is arranged beside the lower mould bottom block, a fixing support is used for fixing the threaded rod, the sliding block is sleeved on the threaded rod, the bottom of the threaded rod is embedded in the base, a rotating shaft is arranged in the base perpendicularly to the threaded rod, driving wheels are arranged at the end part of the rotating shaft and the bottom end of the threaded rod, the driving wheels are meshed, a lifting motor is arranged beside the rotating shaft, driving wheels are arranged on the rotating shaft and the lifting motor, and the driving wheels are meshed;
an upper die is embedded in the top plate, a pressing plate is arranged on the upper die, a cooling water tank is arranged on the pressing plate, a cooling water pipe is arranged in the upper die, the cooling water pipe is connected with the cooling water tank, and a fixing mechanism is arranged at the end part of the pressing plate;
the fixing mechanism is provided with a sliding guide rod, the sliding guide rod penetrates through the fixing block, the top plate is provided with a matched fixing groove, the sliding guide rod is sleeved with a reset spring, the pressing plate is provided with a stirring groove, a stirring block is arranged in the stirring groove, and the stirring block is connected with the fixing block.
Preferably, a sliding groove is formed in the side face of the bottom block of the lower die, a sliding convex block is arranged on the inner ring of the bottom of the lower die frame, and the sliding convex block is embedded in the sliding groove.
Preferably, the fixed bolster is L type structure, the minor face of fixed bolster is established on the top, the threaded rod tip inlays in the minor face of fixed bolster, the long limit length less than or equal to of fixed bolster the length that the telescopic link is in the complete contraction state.
Preferably, the upper die is provided with a placing groove, and the cooling water pipe is arranged in the placing groove.
Preferably, the pressing plate is provided with a through hole, and the diameter of the through hole is larger than or equal to that of the cooling water pipe.
Preferably, a water suction pump is arranged at the top of the cooling water tank, and a connecting port is arranged on the side face of the cooling water tank.
Preferably, the fixed block is a U-shaped block, the short edge of the fixed block is arranged on one side, a limiting groove is formed in the other side of the fixed block, and one end of the reset spring is embedded in the limiting groove.
Preferably, one end of the sliding guide rod is connected with the inner wall of the pressing plate, the other end of the sliding guide rod is provided with a limiting block, and the other end of the reset spring abuts against the limiting block.
The utility model has the advantages that:
after the plastic part is molded, the threaded rod rotates to enable the sliding block to descend, the sliding block drives the lower die frame to descend, the plastic part is separated from the lower die frame, meanwhile, the lower die bottom block completely supports the plastic part, the plastic part uniformly receives the supporting force of the lower die bottom block, and warping is avoided; the upper die is provided with a placing groove, a cooling water pipe is arranged in the placing groove and is connected with a cooling water tank, and a water pump enables cooling liquid to circulate, so that cooling of the plastic part is guaranteed, and the rate of finished products of demolding is improved; through the fixing mechanism of clamp plate, the replacement of mould in convenient quick going on improves production efficiency.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, together with the description of embodiments of the invention, and are not intended to limit the invention. In the drawings:
fig. 1 is a first structural front view of the present invention;
FIG. 2 is a second structural front view of the present invention;
FIG. 3 is a top view of the present invention;
labeled as: 1-base, 2-top plate, 3-telescopic rod, 4-bottom die block, 5-bottom die frame, 6-slide block, 7-fixed support, 8-threaded rod, 9-driving wheel, 10-driving wheel, 11-rotating shaft, 12-lifting motor, 13-top die, 14-cooling water pipe, 15-pressing plate, 16-cooling water tank, 17-water pump, 18-placing groove, 19-sliding guide rod, 20-fixed block, 21-limiting groove, 22-reset spring, 23-limiting block, 24-shifting groove, 25-shifting block and 26-fixing groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
According to shown in fig. 1 to 3, a mould structure for controlling warping of a thin-wall plastic part comprises a base 1, a telescopic rod 3 perpendicular to the base 1 is arranged on the base 1, the telescopic rod 3 is connected with a top plate 2, a lower mould bottom block 4 is arranged on the base 1, a lower mould frame 5 is sleeved on the lower mould bottom block 4, a sliding block 6 is arranged on the side surface of the lower mould frame 5, a threaded rod 8 perpendicular to the base 1 is arranged beside the lower mould bottom block 4, a fixed support 7 fixes the threaded rod 8, the sliding block 6 is sleeved on the threaded rod 8, the bottom of the threaded rod 8 is embedded in the base 1, a rotating shaft 11 is arranged perpendicular to the threaded rod 8 in the base 1, a driving wheel 9 is arranged at the end part of the rotating shaft 11 and the bottom end of the threaded rod 8, the driving wheel 9 is meshed, a lifting motor 12 is.
The top plate 2 is embedded with an upper die 13, a pressing plate 15 is arranged on the upper die 13, a cooling water tank 16 is arranged on the pressing plate 15, a cooling water pipe 14 is arranged in the upper die 13, the cooling water pipe 14 is connected with the cooling water tank 16, a water suction pump 17 is arranged at the top of the cooling water tank 16, and a fixing mechanism is arranged at the end of the pressing plate 15. The upper mold 13 is provided with a placement groove 18, and the cooling water pipe 14 is disposed in the placement groove 18.
The fixing mechanism is provided with a sliding guide rod 19, the sliding guide rod 19 penetrates through a fixing block 20, the top plate 2 is provided with a matched fixing groove 26, the sliding guide rod 19 is sleeved with a return spring 22, a toggle groove 24 is formed in the pressing plate 15, a toggle block 25 is arranged in the toggle groove 24, and the toggle block 25 is connected with the fixing block 20. The fixed block 20 is provided with a limit groove 21, and one end of a return spring 22 is embedded in the limit groove 21. The other end of the return spring 22 abuts against a stopper 23 of the slide guide 19.
The working principle is as follows: the telescopic rod 3 contracts, the top plate 2 with the upper die 13 descends until the telescopic rod 3 completely contracts, and solution is injected through the injection molding opening. After liquid injection, the water suction pump 17 is started, and cooling liquid in the cooling water tank 16 cools the plastic part through the cooling water pipe 14. After a while, the suction pump 17 is stopped.
The lifting motor 12 is electrified, and the threaded rod 8 is rotated through the driving wheel 10, the rotating shaft 11 and the driving wheel 9. The threaded rod 8 rotates to drive the sliding block 6 to descend, and the sliding block 6 drives the lower die frame 5 to descend. The lower mold bottom block 4 supports the plastic part. Until the bottom of the lower mold frame 5 is pressed against the base 1.
When it is necessary to replace the upper mold, the pusher block 25 is moved along the pusher slot 24 of the platen 15, the pusher block 25 carries the fixed block 20 along the sliding guide 19 and compresses the return spring 22. Until the toggle block 25 abuts against the other end of the toggle groove 24, and the projection on the side surface of the fixed block 20 is separated from the fixed groove 21 and is received in the press plate 15. The pressing plate can be taken out, and the upper grinding tool 13 is convenient to disassemble.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A mould structure for controlling warping of a thin-wall plastic part is characterized by comprising a base, wherein a telescopic rod is arranged on the base perpendicularly to the base and is connected with a top plate, a lower mould bottom block is arranged on the base and is sleeved with a lower mould frame, a sliding block is arranged on the side face of the lower mould frame, a threaded rod perpendicular to the base is arranged beside the lower mould bottom block, a fixing support is used for fixing the threaded rod, the sliding block is sleeved on the threaded rod, the bottom of the threaded rod is embedded in the base, a rotating shaft is arranged in the base perpendicularly to the threaded rod, driving wheels are arranged at the end part of the rotating shaft and the bottom end of the threaded rod, the driving wheels are meshed, a lifting motor is arranged beside the rotating shaft, driving wheels are arranged on the rotating shaft and the lifting motor, and the driving wheels are meshed;
an upper die is embedded in the top plate, a pressing plate is arranged on the upper die, a cooling water tank is arranged on the pressing plate, a cooling water pipe is arranged in the upper die, the cooling water pipe is connected with the cooling water tank, and a fixing mechanism is arranged at the end part of the pressing plate;
the fixing mechanism is provided with a sliding guide rod, the sliding guide rod penetrates through the fixing block, the top plate is provided with a matched fixing groove, the sliding guide rod is sleeved with a reset spring, the pressing plate is provided with a stirring groove, a stirring block is arranged in the stirring groove, and the stirring block is connected with the fixing block.
2. The mold structure for controlling the warping of a thin-walled plastic part as claimed in claim 1, wherein the bottom mold bottom block is provided with a sliding groove on a side surface thereof, and the inner ring of the bottom of the lower mold frame is provided with a sliding protrusion embedded in the sliding groove.
3. The mold structure for controlling the warping of a thin-wall plastic part according to claim 1, wherein the fixing bracket is an L-shaped structure, the short side of the fixing bracket is arranged at the top end, the end of the threaded rod is embedded in the short side of the fixing bracket, and the length of the long side of the fixing bracket is less than or equal to the length of the telescopic rod in the fully retracted state.
4. The mold structure for controlling the warpage of a thin-wall plastic part according to claim 1, wherein the upper mold is provided with a placing groove, and the cooling water pipe is arranged in the placing groove.
5. The mold structure for controlling the warping of a thin-walled plastic part according to claim 1, wherein the pressure plate is provided with a through hole, and the diameter of the through hole is larger than or equal to that of the cooling water pipe.
6. The mold structure for controlling the warping of a thin-wall plastic part according to claim 1, wherein a water pump is arranged at the top of the cooling water tank, and a connecting port is arranged on the side surface of the cooling water tank.
7. The mold structure for controlling the warping of a thin-wall plastic part according to claim 1, wherein the fixing block is a U-shaped block, the short edge of the fixing block is arranged on one side, a limiting groove is arranged on the other side, and one end of the return spring is embedded in the limiting groove.
8. The mold structure for controlling the warping of a thin-wall plastic part according to claim 1, wherein one end of the sliding guide rod is connected with the inner wall of the pressing plate, a limiting block is arranged at the other end of the sliding guide rod, and the other end of the return spring abuts against the limiting block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022496927.2U CN213533600U (en) | 2020-11-02 | 2020-11-02 | Mould structure for controlling warping of thin-wall plastic part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022496927.2U CN213533600U (en) | 2020-11-02 | 2020-11-02 | Mould structure for controlling warping of thin-wall plastic part |
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| Publication Number | Publication Date |
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| CN213533600U true CN213533600U (en) | 2021-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022496927.2U Active CN213533600U (en) | 2020-11-02 | 2020-11-02 | Mould structure for controlling warping of thin-wall plastic part |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116728671A (en) * | 2023-08-16 | 2023-09-12 | 华侨大学 | Carbon fiber material former |
-
2020
- 2020-11-02 CN CN202022496927.2U patent/CN213533600U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116728671A (en) * | 2023-08-16 | 2023-09-12 | 华侨大学 | Carbon fiber material former |
| CN116728671B (en) * | 2023-08-16 | 2023-12-19 | 华侨大学 | Carbon fiber material former |
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