CN218624971U - Knurling screw capable of preventing glue leakage during injection molding - Google Patents
Knurling screw capable of preventing glue leakage during injection molding Download PDFInfo
- Publication number
- CN218624971U CN218624971U CN202222507936.6U CN202222507936U CN218624971U CN 218624971 U CN218624971 U CN 218624971U CN 202222507936 U CN202222507936 U CN 202222507936U CN 218624971 U CN218624971 U CN 218624971U
- Authority
- CN
- China
- Prior art keywords
- knurled
- cylinder
- screw
- blind hole
- annular knurl
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000003292 glue Substances 0.000 title claims abstract description 11
- 238000001746 injection moulding Methods 0.000 title claims abstract description 9
- 238000000465 moulding Methods 0.000 claims abstract description 10
- 239000004033 plastic Substances 0.000 claims abstract description 10
- 229920003023 plastic Polymers 0.000 claims abstract description 10
- 238000004026 adhesive bonding Methods 0.000 claims abstract description 7
- 230000002265 prevention Effects 0.000 claims abstract description 4
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 claims description 4
- 238000007774 anilox coating Methods 0.000 claims 1
- 238000010030 laminating Methods 0.000 abstract description 2
- 238000010073 coating (rubber) Methods 0.000 description 3
- UVXCXZBZPFCAAJ-UHFFFAOYSA-N arc-111 Chemical compound C1=C2OCOC2=CC2=C(N(CCN(C)C)C(=O)C3=C4C=C(C(=C3)OC)OC)C4=CN=C21 UVXCXZBZPFCAAJ-UHFFFAOYSA-N 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Images
Abstract
The utility model provides a prevent leaking annular knurl screw of gluing of moulding plastics, includes batch head, knurling portion, goes up mould location portion, screw thread portion and leading-in portion, batch head is including a position dish to and lower mould location blind hole. The knurled portion includes a first knurled cylinder and a second knurled cylinder. The second annular knurl cylinder is kept away from the cylindrical tip edge of first annular knurl is the right angle edge, it is four directions step to go up mould location portion, lower mould location blind hole with the outline of four directions step all becomes the quadrangle, just lower mould location blind hole with the edge of four directions step is all parallel. The injection molding glue leakage prevention knurled screw is formed by dividing the knurled part into the first knurled cylinder and the second knurled cylinder. Make the cylindrical diameter of second annular knurl is less than the cylindrical diameter of first annular knurl, and will the cylindrical edge of second annular knurl designs into the right angle edge, makes its laminating mould that can be better, thereby prevents to leak and glues.
Description
Technical Field
The utility model relates to a fastener technical field, in particular to prevent leaking annular knurl screw of gluing of moulding plastics.
Background
The screw is mainly used for connecting two workpieces together to play a role in fastening and is an indispensable necessity in industry or life. In order to make things convenient for people directly to go to assemble a certain screw with the hand, people have designed the annular knurl screw, have still improved people simultaneously and have twisted the comfort level of establishing the screw and improve and twist the frictional force of establishing this annular knurl screw, need carry out the rubber coating on the position that is equipped with the annular knurl of this annular knurl screw.
The knurled screw in the prior art is mostly formed by processing reticulate patterns and knurls at the position of the screw needing knurling and then integrally placing the screw into a die for punching, injection molding and encapsulation. But current screw appears the knurling easily after the rubber coating and rotates, leaks gluey scheduling problem during moulding plastics, and both can influence the result of use of screw, consequently need improve.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a knurling screw that can prevent to leak gluey when moulding plastics to solve foretell technical problem.
The utility model provides a leak annular knurl screw of gluing of preventing moulding plastics, its includes in proper order criticize head, knurling portion, goes up mould location portion, screw thread portion and leading-in portion, criticize the head and include a positioning disk, and a setting is in the lower mould location blind hole of the free end of positioning disk, lower mould location blind hole passes criticize the head with knurling portion, the diameter of the circumscribed circle of lower mould location blind hole is less than the diameter of the circumscribed circle of knurling portion, the diameter of positioning disk is greater than the diameter of the circumscribed circle of knurling portion, knurling portion includes that one sets up criticize first annular knurl cylinder on the head, and one sets up first annular knurl cylinder dorsad criticize the second annular knurl cylinder of head one end, second annular knurl cylinder keeps away from first annular knurl cylindrical tip edge is the right angle edge, it is one to go up mould location portion and is one and sets up the cubic step of knurling portion one end, and the diameter of the circumscribed circle of this cubic step is less than the cylindrical circumscribed circle of second annular knurl cylinder, lower mould location blind hole with the outline of cubic step all becomes, just the lower mould location blind hole all with the lower mould location all with the edge of tetragonal step fixes a position with the quadrangle.
Further, the knurled portion is located between the batch head portion and the upper die positioning portion.
Further, a reticulate pattern knurling with the depth of 1mm is arranged on the outer side wall of the first knurled cylinder.
Further, a thread type thread is arranged on the thread part.
Further, an end of the introduction portion remote from the threaded portion is tapered.
Further, the batch head portion, the knurled portion, the upper die positioning portion, the threaded portion, and the introduction portion are integrally formed.
Compared with the prior art, the utility model provides a pair of prevent leaking annular knurl screw of gluing it through with annular knurl part becomes first annular knurl cylinder and second annular knurl cylinder. Make the cylindrical diameter of second annular knurl is less than the cylindrical diameter of first annular knurl, and will the cylindrical edge of second annular knurl designs into the right angle edge, makes its laminating mould that can be better to prevent the hourglass and glue.
Drawings
Fig. 1 is the utility model provides a pair of prevent leaking the structural sketch of annular knurl screw of gluing of moulding plastics.
Fig. 2 is the utility model provides a prevent moulding plastics hourglass annular knurl screw's of gluing elevation structure sketch map.
Detailed Description
Specific examples of the present invention will be described in further detail below. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.
As shown in fig. 1 to fig. 2, it is a structural schematic diagram of a knurled screw for preventing glue leakage during injection molding provided by the present invention. The injection molding glue leakage prevention knurled screw comprises a screwdriver head part 10, a knurled part 20 arranged on one end face of the screwdriver head part 10 in a protruding mode, an upper die positioning part 30 arranged on the other end face of the knurled part 20, a threaded part 40 connected with the upper die positioning part 30, and a guiding part 50 arranged on the other end portion of the threaded part 40. It is contemplated that the injection molding glue leakage prevention knurled screw further includes other functional structures, such as a lubrication coating, etc., which are well known to those skilled in the art and will not be described herein in detail.
The screwdriver head 10 is connected with the knurled part 20, the diameter of the circumscribed circle of the screwdriver head 10 is larger than that of the circumscribed circle of the knurled part 20, the screwdriver head 10 comprises a lower die positioning blind hole 11, the lower die positioning blind hole 11 penetrates through the screwdriver head 10 and the knurled part 20, and the diameter of the lower die positioning blind hole 11 is smaller than that of the circumscribed circle of the knurled part 20. Lower mould location blind hole 11 is square groove shape, just the opening end face of lower mould location blind hole 11 is provided with recessed circular arc 111, recessed circular arc 111 is used for leading-in with the constant head tank (not shown) on the mould thereby lower mould location blind hole 11 plays the positioning action with the constant head tank joint of one side of mould.
The knurled section 20 is located between the screwdriver head portion 10 and the upper die positioning portion 30, and the knurled section 20 is composed of a first knurled cylinder 21 and a second knurled cylinder 22 disposed on an end surface of the first knurled cylinder 21. The diameter of first knurling cylinder 21 is less than the diameter of the circumscribed circle of head 10 of criticizing, the diameter of second knurling cylinder 22 is greater than go up the diameter of the circumscribed circle of mould location portion 30, make first knurling cylinder 21 with form cascaded between the second knurling cylinder 22, just second knurling cylinder 22 keeps away from the tip of first knurling cylinder 21 is the right angle edge, makes second knurling cylinder 22 more laminates the mould when moulding plastics the rubber coating to prevent the adhesive leakage. The side wall of the first knurled cylinder 21 is provided with reticulate knurls, the depth of each knurl is 1mm, and the friction force after encapsulation is increased.
The upper die positioning portion 30 is clamped between the knurled portion 20 and the threaded portion 40, the upper die positioning portion 30 is a square step arranged at one end of the knurled portion 20, and four side walls of the upper die positioning portion 30 are parallel to four side walls of the lower die positioning blind hole 11, so that the die is prevented from being damaged when being closed.
The thread part 40 is provided with a thread form thread, and the friction force after the object is screwed in is increased through the thread form thread, so that the stability is improved.
The introduction portion 50 is located at a lower end of the threaded portion 40. The end of the introduction portion 50 remote from the threaded portion 40 is tapered to act at a position where it is inserted into a predetermined groove and then to perform a fastening function.
Compared with the prior art, the utility model provides a pair of it passes through with it is through will to prevent moulding plastics hourglass annular knurl screw that glues first annular knurl cylinder 21 and second annular knurl cylinder 22 are divided into in annular knurl portion 20. The diameter of the second knurled cylinder 22 is smaller than that of the first knurled cylinder 21, and the edge of the second knurled cylinder 22 is designed to be a right-angle edge, so that the second knurled cylinder can be better attached to a die, and glue leakage is prevented.
The above are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent replacements, or improvements within the spirit of the present invention are all encompassed in the scope of the claims of the present invention.
Claims (6)
1. The utility model provides a prevent leaking annular knurl screw of gluing of moulding plastics which characterized in that: the injection molding leakage prevention knurled screw comprises a batch head, a knurled part, an upper die positioning part, a threaded part and a guiding part in sequence, wherein the batch head comprises a positioning disc, one lower die positioning blind hole is formed in the free end of the positioning disc, the lower die positioning blind hole penetrates through the batch head and the knurled part, the diameter of the excircle of the lower die positioning blind hole is smaller than that of the excircle of the knurled part, the diameter of the positioning disc is larger than that of the excircle of the knurled part, the knurled part comprises a first knurled cylinder arranged on the batch head, and one first knurled cylinder is arranged in a mode that the first knurled cylinder faces away from the second knurled cylinder at one end of the batch head, the second knurled cylinder is far away from the end edge of the first knurled cylinder is a right angle edge, the upper die positioning part is arranged in a mode, the diameter of the excircle of the tetragonal blind hole is smaller than that of the tetragonal blind hole, the lower die positioning and the outline of the tetragonal step are parallel.
2. The knurling screw of claim 1, wherein: the knurled portion is located between the screwdriver head portion and the upper die positioning portion.
3. The knurled screw for preventing glue leakage during injection molding according to claim 1, wherein: and an anilox knurl with the depth of 1mm is arranged on the outer side wall of the first knurled cylinder.
4. The knurling screw of claim 1, wherein: the thread part is provided with a tooth-shaped thread.
5. The knurling screw of claim 1, wherein: the end of the leading-in part far away from the thread part is conical.
6. The knurling screw of claim 1, wherein: the batch head part, the knurled part, the upper die positioning part, the threaded part and the guide-in part are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222507936.6U CN218624971U (en) | 2022-09-21 | 2022-09-21 | Knurling screw capable of preventing glue leakage during injection molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222507936.6U CN218624971U (en) | 2022-09-21 | 2022-09-21 | Knurling screw capable of preventing glue leakage during injection molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218624971U true CN218624971U (en) | 2023-03-14 |
Family
ID=85466228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222507936.6U Active CN218624971U (en) | 2022-09-21 | 2022-09-21 | Knurling screw capable of preventing glue leakage during injection molding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218624971U (en) |
-
2022
- 2022-09-21 CN CN202222507936.6U patent/CN218624971U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 314100 Building 2, 99 Lingxiu Branch Road, Luoxing street, Jiashan County, Jiaxing City, Zhejiang Province Patentee after: Zhejiang Hangong Intelligent Industry Co.,Ltd. Country or region after: China Address before: 314100 Building 2, 99 Lingxiu Branch Road, Luoxing street, Jiashan County, Jiaxing City, Zhejiang Province Patentee before: JIAXING HANGONG AUTOMOBILE FASTENER CO.,LTD. Country or region before: China |