CN217098640U - Injection mold for screw cap - Google Patents
Injection mold for screw cap Download PDFInfo
- Publication number
- CN217098640U CN217098640U CN202122313738.1U CN202122313738U CN217098640U CN 217098640 U CN217098640 U CN 217098640U CN 202122313738 U CN202122313738 U CN 202122313738U CN 217098640 U CN217098640 U CN 217098640U
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- die
- screw
- nut
- groove
- upper die
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Abstract
The utility model relates to an injection mold for a nut, which comprises a lower mold, wherein a middle groove is arranged at the central position of the top of the lower mold, a plurality of mold grooves are annularly arranged on the lower mold based on the middle groove, and a communicating groove is arranged between each mold groove and the middle groove; a plurality of screw rods are arranged on the upper die in a threaded manner, and the bottom ends of the screw rods extend into the die grooves; and the upper die is provided with a screw lifting device, and the screw lifting device is used for driving the screw to rotate and lift. The utility model can form a plurality of nuts at one time by arranging a plurality of mould grooves, thereby greatly improving the production efficiency of the nuts; the screw threads on the inner surface of the nut are shaped through the movable screw rod extending into the die groove, and the screw rod is rotated and lifted to be separated from the injection molding nut through the screw rod lifting device, so that the die is convenient to take.
Description
Technical Field
The utility model belongs to the technical field of the mould, especially, relate to an injection mold for nut.
Background
The nut is a nut, is screwed together with the bolt or the screw rod to play a role in fastening, and can be connected with the bolt through the threads on the inner side. The screw cap, which is commonly used in children's toys, is made of plastic, and the inner surface of the plastic screw cap is provided with spiral threads, and is generally formed by injection molding through a mold.
The injection mold of current plastics nut processing can only one shaping nut, and machining efficiency is lower, and this kind of plastics nut one shot forming is difficult for taking out from the mould because the inboard is provided with the screw thread moreover.
Therefore, there is a need to provide a new injection mold for nuts to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an injection mold for nut just in order to solve above-mentioned problem.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
an injection mold for a nut comprises a lower mold, wherein a middle groove is formed in the center of the top of the lower mold, a plurality of mold grooves are annularly formed in the lower mold based on the middle groove, and a communication groove is formed between each mold groove and the middle groove;
an upper die is arranged at the top of the lower die, a material injection pipe is arranged on the upper die, and the material injection pipe penetrates through the upper die and is communicated with the middle groove; a plurality of screw rods are arranged on the upper die in a threaded manner, and the bottom ends of the screw rods extend into the die grooves;
and the upper die is provided with a screw lifting device, and the screw lifting device is used for driving the screw to rotate and ascend.
As a further optimization scheme of the utility model, screw rod hoisting device includes the support, the support sets up go up the top of mould, the top of support is provided with the roof, the top of notes material pipe extends to the top of roof, the bottom side of roof is rotated and is installed a plurality of revolving stages, the bottom side fixed mounting of revolving stage has flexible post, flexible post flexible end with screw rod fixed connection fixes the cover on the flexible post and has connect driven sprocket, upward be provided with the motor on the mould, fixed mounting has the pivot on the output shaft of motor, fixed the cover has connect drive sprocket in the pivot, all driven sprocket is connected through the chain, drive sprocket with chain looks adaptation.
As a further optimization scheme of the utility model, the top side of bed die is provided with two locating pins, two constant head tanks have been seted up to the bottom of going up the mould, the locating pin with constant head tank looks adaptation.
As a further optimization scheme of the utility model, the top symmetry of going up the mould is provided with two ear-hangs.
As the utility model discloses a further optimization scheme, the bed die passes through fixed column fixed mounting in the cooling trough, be provided with the breakwater around the bed die.
The beneficial effects of the utility model reside in that:
the utility model can form a plurality of nuts at one time by arranging a plurality of mould grooves, thereby greatly improving the production efficiency of the nuts; the screw threads on the inner surface of the nut are shaped through the movable screw rod extending into the die groove, and the screw rod is rotated and lifted to be separated from the injection molding nut through the screw rod lifting device, so that the die is convenient to take.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a plan view of the lower mold of the present invention;
fig. 3 is a plan view of the upper mold of the present invention.
In the figure: 1. a lower die; 2. a mould groove; 3. an intermediate tank; 4. a communicating groove; 5. an upper die; 6. injecting a material pipe; 7. a screw; 8. a support; 9. a top plate; 10. a turntable; 11. a telescopic column; 12. a driven sprocket; 13. a chain; 14. a motor; 15. a rotating shaft; 16. a drive sprocket; 17. ear hanging; 18. positioning a groove; 19. positioning pins; 20. a cooling water tank; 21. fixing a column; 22. a water baffle.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
Example 1
As shown in fig. 1-3, an injection mold for a nut comprises a lower mold 1, wherein a middle groove 3 is formed in the center of the top of the lower mold 1, a plurality of mold grooves 2 are annularly formed in the lower mold 1 based on the middle groove 3, and a communication groove 4 is formed between each mold groove 2 and the middle groove 3;
an upper die 5 is arranged at the top of the lower die 1, a material injection pipe 6 is arranged on the upper die 5, and the material injection pipe 6 penetrates through the upper die 5 and is communicated with the middle groove 3; a plurality of screws 7 are arranged on the upper die 5 in a threaded manner, and the bottom ends of the screws 7 extend into the die grooves 2;
the upper die 5 is provided with a screw lifting device, and the screw lifting device is used for driving a screw to rotate and lift; screw rod hoisting device includes support 8, support 8 sets up go up the top of mould 5, and the top of support 8 is provided with roof 9, the top of notes material pipe 6 extends to the top of roof 9, the bottom side of roof 9 is rotated and is installed a plurality of revolving stages 10, the bottom side fixed mounting of revolving stage 10 has flexible post 11, flexible post 11 flexible end with screw rod 7 fixed connection, the fixed driven sprocket 12 that has cup jointed on the flexible post 11, upward be provided with motor 14 on the mould 5, fixed mounting has pivot 15 on motor 14's the output shaft, the fixed driving sprocket 16 that has cup jointed in pivot 15, all driven sprocket 12 is connected through chain 13, driving sprocket 16 with 13 looks adaptations of chain.
Two positioning pins 19 are arranged on the top side of the lower die 1, two positioning grooves 18 are formed in the bottom of the upper die 5, and the positioning pins 19 are matched with the positioning grooves 18, so that the upper die 5 and the lower die 1 can be conveniently positioned and installed.
Two ear hooks 17 are symmetrically arranged at the top of the upper die 5, and the ear hooks 17 are used as acting points for the stripping of the upper die 5.
The lower die 1 is fixedly installed in the cooling water tank 20 through a fixing column 21, a water baffle 22 is arranged around the lower die 1, cold water is contained in the cooling water tank 20 and used for cooling the lower die 1, and the water baffle 22 is used for preventing the water level of the cold water from entering the die groove 2 from the top side of the lower die 1.
The utility model provides an injection mold for nut's theory of operation as follows:
firstly, an upper die 5 and a lower die 1 are installed in a matched mode through a positioning pin 19 and a positioning groove 18, a motor 14 is started, an output shaft of the motor 14 drives a rotating shaft 15 to rotate, the rotating shaft 15 drives a driving chain wheel 16 to rotate, the driving chain wheel 16 drives all driven chain wheels 12 to rotate through a chain 13, the driven chain wheels 12 drive telescopic columns 11 to rotate, the telescopic columns 11 drive screw rods 7 to rotate until the screw rods 7 extend into a die groove 2 and are contacted with the inner wall of the bottom side of the die groove 2, then plastic slurry is injected through a material injection pipe 6, the plastic slurry enters the die groove 2 through a communication groove 4, the die groove 2 and the screw rods 7 are matched for forming, cold water is added into a cooling water tank 20 for cooling, the motor 14 is started after cooling forming, the output shaft of the motor 14 drives the rotating shaft 15 to rotate, the rotating shaft 15 drives the driving chain wheel 16 to rotate, and the driving chain wheel 16 drives all the driven chain wheels 12 to rotate through the chain 13, driven sprocket 12 drives flexible post 11 and rotates, and flexible post 11 drives screw rod 7 and rotates, has realized that screw rod 7 pivoted while rebound, until taking off die cavity 2, the screw thread of nut internal surface is the one shot forming and be convenient for get the mould this moment.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (5)
1. An injection mold for a nut, characterized in that: the die comprises a lower die, wherein a middle groove is formed in the center of the top of the lower die, a plurality of die grooves are annularly formed in the lower die based on the middle groove, and a communication groove is formed between each die groove and the middle groove;
an upper die is arranged at the top of the lower die, a material injection pipe is arranged on the upper die, and the material injection pipe penetrates through the upper die and is communicated with the middle groove; a plurality of screw rods are arranged on the upper die in a threaded manner, and the bottom ends of the screw rods extend into the die grooves;
and the upper die is provided with a screw lifting device, and the screw lifting device is used for driving the screw to rotate and lift.
2. An injection mold for a nut as defined in claim 1, wherein: screw rod hoisting device includes the support, the support sets up go up the top of mould, the top of support is provided with the roof, the top of notes material pipe extends to the top of roof, the bottom side of roof is rotated and is installed a plurality of revolving stages, the bottom side fixed mounting of revolving stage has flexible post, flexible post flexible end with screw rod fixed connection, the fixed cover of having connect from the sprocket on the flexible post, upward be provided with the motor on the mould, fixed mounting has the pivot on the output shaft of motor, the fixed hub connection has drive sprocket in the pivot, all from the sprocket is connected through the chain, drive sprocket with chain looks adaptation.
3. An injection mold for a nut as defined in claim 1, wherein: the top side of the lower die is provided with two positioning pins, the bottom of the upper die is provided with two positioning grooves, and the positioning pins are matched with the positioning grooves.
4. An injection mold for a nut as defined in claim 1, wherein: the top of the upper die is symmetrically provided with two ear hooks.
5. An injection mold for a nut as defined in claim 1, wherein: the lower die is fixedly installed in the cooling water tank through a fixing column, and a water baffle is arranged around the lower die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122313738.1U CN217098640U (en) | 2021-09-18 | 2021-09-18 | Injection mold for screw cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122313738.1U CN217098640U (en) | 2021-09-18 | 2021-09-18 | Injection mold for screw cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217098640U true CN217098640U (en) | 2022-08-02 |
Family
ID=82576002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122313738.1U Active CN217098640U (en) | 2021-09-18 | 2021-09-18 | Injection mold for screw cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217098640U (en) |
-
2021
- 2021-09-18 CN CN202122313738.1U patent/CN217098640U/en active Active
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