CN114750335B - Processing method of plastic threaded product - Google Patents
Processing method of plastic threaded product Download PDFInfo
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- CN114750335B CN114750335B CN202210659830.XA CN202210659830A CN114750335B CN 114750335 B CN114750335 B CN 114750335B CN 202210659830 A CN202210659830 A CN 202210659830A CN 114750335 B CN114750335 B CN 114750335B
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- thread
- glue
- connecting piece
- male
- female
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2618—Moulds having screw-threaded mould walls
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2001/00—Articles provided with screw threads
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a processing method of a plastic thread product, which comprises the following steps: selecting a threaded product, wherein the threaded product comprises a first connecting piece and a second connecting piece, the first connecting piece is provided with male threads, and the second connecting piece is provided with female threads; connecting the first connecting piece and the second connecting piece together, and injecting glue into a gap between the male thread and the female thread; splitting the thread product after the glue is solidified; measuring the thickness of the glue to obtain the fit clearance of the male thread and the female thread; and correcting the size of the die based on the fit clearance, and processing a new thread product according to the corrected die. According to the invention, the fit clearance data of the male thread and the female thread can be obtained through the glue, effective data support is provided for mould correction, and a mould with higher precision can be developed at one time, so that the precision of a thread product is improved, the development cycle of the thread product is shortened, the yield of the thread product is increased, and the production cost of the thread product is reduced.
Description
Technical Field
The invention relates to the technical field of injection molding, in particular to a processing method of a plastic threaded product.
Background
Injection molding, also known as injection molding, is a method of molding by injection molding, in which molten raw materials are pressed, injected, cooled, and separated to form a semi-finished product having a predetermined shape. The injection molding method has the advantages of high production speed, high efficiency, automation of operation, various colors, various shapes from simple to complex, small sizes, accurate product size, easy replacement of products, capability of manufacturing products with complex shapes, and suitability for the molding processing fields of mass production, products with complex shapes and the like.
For plastic thread products, the thread precision of the thread products is not high enough due to the deformation and shrinkage defects of the thread products in the injection molding process, and certain troubles are caused to the thread injection molding industry. At present, the thread precision of a thread product is improved mainly by modifying the size of a die, but the modification of the size of the die can only be carried out according to experience feedback modification and adaptation completion requirements, so that the thread product has low precision, long development period, low production yield and high production cost.
Disclosure of Invention
The invention aims to provide a processing method of a plastic thread product, which is used for solving the problems of low precision, low production yield, high production cost and long production period of the plastic thread product in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme: a processing method of a plastic threaded product comprises the following steps:
selecting a threaded product, wherein the threaded product comprises a first connecting piece and a second connecting piece, the first connecting piece is provided with a male thread, and the second connecting piece is provided with a female thread;
connecting the first connecting piece and the second connecting piece together through a male thread and a female thread, and injecting glue into a gap between the male thread and the female thread;
after the glue is solidified, splitting the thread product along the radial section of the male thread or the female thread;
measuring the thickness of the glue to obtain the fit clearance of the male thread and the female thread;
and correcting the size of the die based on the fit clearance of the male thread and the female thread, and processing a new thread product according to the corrected die.
As an alternative to the above technical solution, selecting a threaded product comprises: the male head thread and the thread pitch of the selected first connecting piece are clear and uniform, and the female head thread and the thread pitch of the selected second connecting piece are clear and uniform.
As an optional mode of the above technical solution, injecting glue into a gap between the pin thread and the box thread includes: glue is injected into the thread matching part between the male thread and the female thread, the glue is injected from one end of the thread matching part, the glue flows along the thread matching part and flows out from the other end of the thread matching part, and the gap between the male thread and the female thread is filled with the glue.
As an alternative mode of the above technical solution, obtaining the fit clearance of the pin thread and the box thread includes: and carrying out region division on a thread matching part between the male thread and the female thread along the length direction of the thread matching part, calculating the average thickness of glue in each region according to the thickness of the glue on two sides of the male thread in each region, and then obtaining the matching clearance of the male thread and the female thread.
As an optional manner of the above technical solution, the thread matching portion between the male thread and the female thread is divided into at least three regions, and the three regions include a head portion, a middle portion and a tail portion of the thread matching portion.
The invention has the beneficial effects that:
according to the invention, the fit clearance data of the male thread and the female thread can be obtained through the glue, effective data support is provided for mould correction, and a mould with higher precision can be developed at one time, so that the precision of a thread product is improved, the development cycle of the thread product is shortened, the yield of the thread product is increased, and the production cost of the thread product is reduced.
Drawings
Fig. 1 is a schematic view of a threaded product according to an embodiment of the present invention.
In the figure: 1-a first connector; 2-a second connector; 3-male thread; 4-female thread.
Detailed Description
Examples
The embodiment provides a processing method of a plastic threaded product, which comprises the following steps:
step 1, selecting a threaded product, wherein the threaded product comprises a first connecting piece 1 and a second connecting piece 2 as shown in fig. 1, the first connecting piece 1 is provided with a male thread 3, and the second connecting piece 2 is provided with a female thread 4. This screw thread product adopts injection moulding, because there is the shrink defect of deformation in the screw thread product among the injection moulding process, leads to the screw thread precision of screw thread product not high enough, and the two has certain fit clearance behind the threaded connection of male thread 3 and female thread 4, and this fit clearance is difficult to detect moreover. When a thread product is selected, the male thread 3 of the first connecting piece 1 needs to have clear insection, uniform thread pitch and smooth wall surface without obvious defects; the female thread 4 of the second connecting piece 2 needs clear insections, has uniform thread pitch, smooth wall surface and no obvious defect, and can be selected by means of a microscope or other detection tools.
And 2, connecting the first connecting piece 1 and the second connecting piece 2 together through the male threads 3 and the female threads 4, and injecting glue into a gap between the male threads 3 and the female threads 4. In order to obtain the degree of fit between the male thread 3 and the female thread 4, the gap between the male thread 3 and the female thread 4 can be filled with glue in a manner of pressurizing the glue. Glue has better mobility, when concrete injection glue in-process, pressurizes glue, injects glue to the screw-thread fit portion between pin thread 3 and the female thread 4, and glue is injected from the one end of screw-thread fit portion, and glue flows and flows from the other end of screw-thread fit portion along the screw-thread fit portion, makes the clearance between pin thread 3 and the female thread 4 fill glue. In order to ensure that the gap between the male thread 3 and the female thread 4 is filled with glue, the glue can be continuously injected, so that the glue wraps and seals the two ends of the thread matching part.
And 3, after the glue is completely solidified, splitting the thread product along the radial section of the male thread 3 or the female thread 4 to expose the glue, and solidifying the glue in the thread gap between the male thread 3 and the female thread 4. Glue is filled in a gap between the male thread 3 and the female thread 4, the thread product is split into two parts, and the thickness of the glue can be visually checked and detected by selecting any one of the two parts.
And 4, measuring the thickness of the glue to obtain the fit clearance of the male thread 3 and the female thread 4. And obtaining the thickness data of the glue after the thickness of the glue is measured, wherein the thickness data is used as the basic data for calculating the fit clearance between the male thread 3 and the female thread 4. Wherein, the fit clearance who obtains public first screw thread 3 and female first screw thread 4 includes: and (3) carrying out regional division on the thread matching part between the male thread 3 and the female thread 4 along the length direction of the thread matching part, calculating the average thickness of glue in each region according to the thickness of the glue on two sides of the male thread 3 in each region, and then obtaining the matching clearance of the male thread 3 and the female thread 4. Because the plastic threaded product may have the condition of uneven deformation and shrinkage in the injection molding process, the divided region can improve the working efficiency.
Preferably, the thread fit part between the male thread 3 and the female thread 4 is divided into at least three regions, the three regions comprise a head part, a middle part and a tail part of the thread fit part, the average thickness of glue in each region is calculated respectively, and the fit clearance of the male thread 3 and the female thread 4 is obtained according to the average thickness of the glue.
And 5, correcting the size of the die based on the fit clearance of the male thread 3 and the female thread 4, and machining a thread product according to the corrected die. The average thickness of glue can obtain the fit clearance data of pin thread 3 and box thread 4, and the staff can adjust and revise the size of mould according to this fit clearance data, then uses the mould after the correction to reprocess new thread product, and new thread product has higher precision, and pin thread 3 and box thread 4 have suitable fit clearance. Wherein, the staff can obtain every thread clearance between public first screw thread 3 and the female screw thread 4 according to the glue thickness in every thread clearance of public first screw thread 3 and female screw thread 4, revises the precision that can once improve the screw thread product and satisfy customer cooperation requirement to the mould based on this method.
The invention can obtain the fit clearance data of the male thread 3 and the female thread 4, provides effective data support for mould correction, and can develop a mould with higher precision at one time, thereby improving the precision of a thread product, shortening the development period of the thread product, increasing the yield of the thread product and reducing the production cost of the thread product.
It should be noted that, for the threaded product with accuracy not meeting the requirement, the steps 1 to 5 can be repeated to further improve the accuracy of the threaded product and meet the requirements of different users.
In the description of the present invention, the terms "mounted," "connected," "fixed," and the like are to be understood broadly and may be fixedly connected, detachably connected, or integrated; may be a mechanical or electrical connection; either directly or indirectly through intervening media, either internally or in any other relationship. Those skilled in the art will understand the specific meaning of the above terms in the present invention. Furthermore, the particular features, structures, etc. described in the examples can be included in at least one implementation and can be combined by one skilled in the art without conflicting therewith. The protection scope of the present invention is not limited to the above specific examples, and embodiments that can be imagined by those skilled in the art without creative efforts based on the basic technical concept of the present invention belong to the protection scope of the present invention.
Claims (5)
1. The processing method of the plastic threaded product is characterized by comprising the following steps of:
selecting a threaded product, wherein the threaded product comprises a first connecting piece (1) and a second connecting piece (2), the first connecting piece (1) is provided with a male thread (3), and the second connecting piece (2) is provided with a female thread (4);
connecting the first connecting piece (1) and the second connecting piece (2) together through a male thread (3) and a female thread (4), and injecting glue into a gap between the male thread (3) and the female thread (4);
after the glue is solidified, splitting the thread product along the radial section of the male thread (3) or the female thread (4);
measuring the thickness of the glue to obtain the fit clearance between the male thread (3) and the female thread (4);
and correcting the size of the die based on the fit clearance of the male thread (3) and the female thread (4), and processing a new thread product according to the corrected die.
2. The method of claim 1, wherein selecting a threaded product comprises: the selected male head threads (3) of the first connecting piece (1) are clear in insection and uniform in thread pitch, and the selected female head threads (4) of the second connecting piece (2) are clear in insection and uniform in thread pitch.
3. The method for manufacturing a plastic threaded product according to claim 1, wherein injecting glue into the gap between the pin thread (3) and the box thread (4) comprises: glue is injected into a thread matching part between the male thread (3) and the female thread (4), the glue is injected from one end of the thread matching part, the glue flows along the thread matching part and flows out from the other end of the thread matching part, and a gap between the male thread (3) and the female thread (4) is filled with the glue.
4. The method for processing a plastic threaded product according to claim 1, wherein obtaining the fit clearance of the pin thread (3) and the box thread (4) comprises: and (3) carrying out region division on the thread matching part between the male thread (3) and the female thread (4) along the length direction of the thread matching part, calculating the average thickness of glue in each region according to the thickness of the glue on two sides of the male thread (3) in each region, and then obtaining the matching clearance of the male thread (3) and the female thread (4).
5. The method for processing a plastic threaded product according to claim 4, wherein the thread engagement portion between the pin thread (3) and the box thread (4) is divided into at least three regions, the three regions including a head portion, a middle portion and a tail portion of the thread engagement portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210659830.XA CN114750335B (en) | 2022-06-13 | 2022-06-13 | Processing method of plastic threaded product |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210659830.XA CN114750335B (en) | 2022-06-13 | 2022-06-13 | Processing method of plastic threaded product |
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| CN114750335A CN114750335A (en) | 2022-07-15 |
| CN114750335B true CN114750335B (en) | 2022-08-19 |
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| CN202210659830.XA Active CN114750335B (en) | 2022-06-13 | 2022-06-13 | Processing method of plastic threaded product |
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| JP2003075145A (en) * | 2001-06-19 | 2003-03-12 | Nissan Motor Co Ltd | Clearance measuring method |
| JP2006175820A (en) * | 2004-12-24 | 2006-07-06 | Suzuka Fuji Xerox Co Ltd | Manufacturing method of mold |
| CN202280981U (en) * | 2011-11-07 | 2012-06-20 | 三一重机有限公司 | Hose connector for testing |
| CN102567564A (en) * | 2010-10-25 | 2012-07-11 | 本田技研工业株式会社 | Mold designing apparatus, mold designing method, mold designing system and mold designing program |
| CN108908807A (en) * | 2018-08-22 | 2018-11-30 | 奥克斯空调股份有限公司 | It is a kind of hot with mould method and mold production method |
| CN109821955A (en) * | 2017-11-23 | 2019-05-31 | 山东菏泽振华精密模具有限公司 | A kind of automobile cover plate drawing die and gap detection method |
| CN113392474A (en) * | 2021-05-10 | 2021-09-14 | 深圳市银宝山新科技股份有限公司 | Injection mold in-mold parameter correction method and device, storage medium and equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8286362B2 (en) * | 2010-11-24 | 2012-10-16 | Honda Motor Co., Ltd. | Device for measuring seal gaps of vehicles |
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2022
- 2022-06-13 CN CN202210659830.XA patent/CN114750335B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6420119A (en) * | 1987-07-16 | 1989-01-24 | Sumitomo Heavy Industries | Control device of non-interferential control type t-die gap |
| JPH07152821A (en) * | 1993-11-27 | 1995-06-16 | Toyota Motor Corp | Designing method and design support system for mold |
| JP2003075145A (en) * | 2001-06-19 | 2003-03-12 | Nissan Motor Co Ltd | Clearance measuring method |
| JP2006175820A (en) * | 2004-12-24 | 2006-07-06 | Suzuka Fuji Xerox Co Ltd | Manufacturing method of mold |
| CN102567564A (en) * | 2010-10-25 | 2012-07-11 | 本田技研工业株式会社 | Mold designing apparatus, mold designing method, mold designing system and mold designing program |
| CN202280981U (en) * | 2011-11-07 | 2012-06-20 | 三一重机有限公司 | Hose connector for testing |
| CN109821955A (en) * | 2017-11-23 | 2019-05-31 | 山东菏泽振华精密模具有限公司 | A kind of automobile cover plate drawing die and gap detection method |
| CN108908807A (en) * | 2018-08-22 | 2018-11-30 | 奥克斯空调股份有限公司 | It is a kind of hot with mould method and mold production method |
| CN113392474A (en) * | 2021-05-10 | 2021-09-14 | 深圳市银宝山新科技股份有限公司 | Injection mold in-mold parameter correction method and device, storage medium and equipment |
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| CN114750335A (en) | 2022-07-15 |
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