CN113857791A - Processing method of tubular double-ball pen point - Google Patents
Processing method of tubular double-ball pen point Download PDFInfo
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- CN113857791A CN113857791A CN202111246961.7A CN202111246961A CN113857791A CN 113857791 A CN113857791 A CN 113857791A CN 202111246961 A CN202111246961 A CN 202111246961A CN 113857791 A CN113857791 A CN 113857791A
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- metal pipe
- ball
- wall
- punching
- processing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Abstract
The invention provides a method for processing a tubular double-ballpoint pen head, which comprises the steps of selecting a section of metal tubular; rolling the front end of the metal pipe to form a conical part; punching and punching the outer wall of the front end of the metal pipe, wherein the punched holes are blind holes, and the pipe wall at the position corresponding to the blind holes protrudes inwards to form a ball seat part; turning the inner wall of the front end of the metal pipe and the ball seat part to form an installation cavity for installing the ball; filling a first ball into the mounting cavity; closing up the front end of the metal pipe to enable the side wall of the front end of the metal pipe to be bent inwards; a second ball is arranged into the metal pipe from the rear end of the metal pipe, and the second ball is abutted and matched with the first ball; adding a spring into the metal pipe from the rear end of the metal pipe; and punching the outer wall of the rear end of the metal pipe, wherein the pipe wall at the position corresponding to the blind hole protrudes inwards to form a limiting part, and the rear end of the spring is abutted against the limiting part.
Description
Technical Field
The invention relates to a processing method of a pen point, in particular to a processing method of a tubular double-ball pen point.
Background
At present, a common pen point processing method is that a section of solid metal rod is selected, and during processing, two ends of the metal rod are respectively processed in a turning mode.
Disclosure of Invention
Aiming at the problems pointed out in the background technology, the invention provides a method for processing a tubular double-ballpoint pen head.
The technical scheme of the invention is realized as follows:
a processing method of a tubular double-ballpoint pen head comprises the following steps:
step one, selecting a section of cylindrical metal pipe;
step two, carrying out rolling treatment on the front end of the metal pipe, and processing the front end of the metal pipe into a conical part;
thirdly, punching and punching the outer wall of the front end of the metal pipe, wherein the punched holes are blind holes, the pipe wall at the position corresponding to the blind holes protrudes inwards to form ball seat parts, and multiple punching and punching treatments are carried out, so that the formed ball seat parts are distributed at intervals in the circumferential direction of the metal pipe;
turning the inner wall of the front end of the metal pipe and the ball seat part to form an installation cavity for installing the ball;
step five, filling a ball I into the mounting cavity;
sixthly, closing up the front end of the metal pipe to enable the side wall of the front end of the metal pipe to be bent inwards, and fixing the first ball in the mounting cavity;
step seven, a second ball is arranged in the metal pipe from the rear end of the metal pipe, the second ball is positioned at the rear side of the ball seat part, and the second ball is abutted and matched with the first ball;
step eight, adding a spring into the metal pipe from the rear end of the metal pipe, wherein the spring is coaxially abutted and matched with the ball II;
and ninthly, punching the outer wall of the rear end of the metal pipe, wherein the pipe wall at the position corresponding to the blind hole protrudes inwards to form a limiting part, and punching for multiple times, wherein the formed limiting parts are distributed at intervals in the circumferential direction of the metal pipe, and the rear end of the spring abuts against the limiting part.
The invention is further provided that the taper of the conical part is 26-35 degrees, and the length of the conical part is 1.5-3.5 mm.
The invention is further provided that the length of the metal pipe is 7-15 mm.
The invention is further provided that the ball seat part is provided with three or four.
The invention is further provided that the outer diameter of the metal pipe is 0.8mm, 1.0mm, 1.3mm and 2.3 mm.
The invention is further provided that the diameters of the first ball and the second ball are 0.3-1.5 mm.
By adopting the technical scheme, the invention has the beneficial effects that:
according to the processing method of the tubular double-ball pen point, the pen point is processed by using the tubular, so that a channel does not need to be processed in the pen point in a turning mode, the convex ball seat part is processed in the pen point in a mode of radially punching the wall of the pen point, and the mounting cavity for mounting the ball is processed at the front end of the pen point tubular in a turning mode. By adopting the processing method, the processing technology of the pen point is simplified, and the processing precision of the pen point is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a process flow diagram corresponding to steps one through five of the process of the present invention;
fig. 2 is a processing flow chart corresponding to steps six to nine of the processing method of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention is illustrated below with reference to fig. 1-2:
a processing method of a tubular double-ballpoint pen head comprises the following steps:
step one, selecting a section of cylindrical metal pipe 1;
step two, performing rolling treatment on the front end of the metal pipe 1, and processing the front end of the metal pipe 1 into a conical part;
thirdly, punching the outer wall of the front end of the metal pipe 1, wherein the punched holes are blind holes, the pipe wall at the position corresponding to the blind holes protrudes inwards to form ball seat parts 2, and multiple punching and punching treatments are carried out to form a plurality of ball seat parts 2 which are distributed at intervals in the circumferential direction of the metal pipe 1;
turning the inner wall of the front end of the metal pipe 1 and the ball seat part 2 to form an installation cavity 3 for installing balls;
step five, filling a first ball 4 into the installation cavity 3;
sixthly, closing up the front end of the metal pipe 1, and bending the side wall of the front end of the metal pipe 1 inwards to fix the first ball 4 in the mounting cavity 3;
seventhly, a second ball 5 is arranged into the metal pipe 1 from the rear end of the metal pipe 1, the second ball 5 is positioned at the rear side of the ball seat part 2, and the second ball 5 is abutted and matched with the first ball 4;
step eight, adding a spring 6 into the metal pipe 1 from the rear end of the metal pipe 1, wherein the spring 6 is coaxially abutted and matched with the ball II 5;
and ninthly, punching the outer wall of the rear end of the metal pipe 1, forming a limiting part 7 by protruding the pipe wall at the position corresponding to the blind hole inwards, punching for multiple times, wherein the formed limiting parts 7 are distributed at intervals in the circumferential direction of the metal pipe 1, and the rear end of the spring 6 abuts against the limiting part 7.
The taper of the conical part is 26-35 degrees, and the length of the conical part is 1.5-3.5 mm.
The length of the metal pipe is 7-15 mm.
The ball seat part is provided with three or four.
The outer diameter of the metal pipe is 0.8mm, 1.0mm, 1.3mm and 2.3 mm.
The diameters of the first ball and the second ball are 0.3-1.5mm
By adopting the technical scheme, the invention has the beneficial effects that:
according to the processing method of the tubular double-ball pen point, the pen point is processed by using the tubular, so that a channel does not need to be processed in the pen point in a turning mode, the convex ball seat part 2 is processed in the pen point in a mode of radially punching the wall of the pen point, and the mounting cavity 3 for mounting the ball is processed at the front end of the pen point tubular in a turning mode. By adopting the processing method, the processing technology of the pen point is simplified, and the processing precision of the pen point is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. A processing method of a tubular double-ballpoint pen head is characterized by comprising the following steps:
step one, selecting a section of cylindrical metal pipe;
step two, carrying out rolling treatment on the front end of the metal pipe, and processing the front end of the metal pipe into a conical part;
thirdly, punching and punching the outer wall of the front end of the metal pipe, wherein the punched holes are blind holes, the pipe wall at the position corresponding to the blind holes protrudes inwards to form ball seat parts, and multiple punching and punching treatments are carried out, so that the formed ball seat parts are distributed at intervals in the circumferential direction of the metal pipe;
turning the inner wall of the front end of the metal pipe and the ball seat part to form an installation cavity for installing the ball;
step five, filling a ball I into the mounting cavity;
sixthly, closing up the front end of the metal pipe to enable the side wall of the front end of the metal pipe to be bent inwards, and fixing the first ball in the mounting cavity;
step seven, a second ball is arranged in the metal pipe from the rear end of the metal pipe, the second ball is positioned at the rear side of the ball seat part, and the second ball is abutted and matched with the first ball;
step eight, adding a spring into the metal pipe from the rear end of the metal pipe, wherein the spring is coaxially abutted and matched with the ball II;
and ninthly, punching the outer wall of the rear end of the metal pipe, wherein the pipe wall at the position corresponding to the blind hole protrudes inwards to form a limiting part, and punching for multiple times, wherein the formed limiting parts are distributed at intervals in the circumferential direction of the metal pipe, and the rear end of the spring abuts against the limiting part.
2. The method for processing the tubular double-ballpoint pen head as recited in claim 1, wherein the method comprises the following steps: the taper of the conical part is 26-35 degrees, and the length of the conical part is 1.5-3.5 mm.
3. The method for processing the tubular double-ballpoint pen head as recited in claim 1, wherein the method comprises the following steps: the length of the metal pipe is 7-15 mm.
4. The method for processing the tubular double-ballpoint pen head as recited in claim 1, wherein the method comprises the following steps: the ball seat part is provided with three or four.
5. The method for processing the tubular double-ballpoint pen head as recited in claim 1, wherein the method comprises the following steps: the outer diameter of the metal pipe is 0.8mm, 1.0mm, 1.3mm and 2.3 mm.
6. The method for processing the tubular double-ballpoint pen head as recited in claim 1, wherein the method comprises the following steps: the diameters of the first ball and the second ball are 0.3-1.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111246961.7A CN113857791A (en) | 2021-10-26 | 2021-10-26 | Processing method of tubular double-ball pen point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111246961.7A CN113857791A (en) | 2021-10-26 | 2021-10-26 | Processing method of tubular double-ball pen point |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113857791A true CN113857791A (en) | 2021-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111246961.7A Pending CN113857791A (en) | 2021-10-26 | 2021-10-26 | Processing method of tubular double-ball pen point |
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| CN (1) | CN113857791A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2779991A1 (en) * | 1998-06-19 | 1999-12-24 | Bic Si Support Ind | Writing tip for ball point pen |
| JP2005279979A (en) * | 2004-03-29 | 2005-10-13 | Zebra Pen Corp | Ball-point pen tip and its manufacturing method |
| CN200960786Y (en) * | 2006-05-30 | 2007-10-17 | 毛应仕 | Double-ball spring type neutral stainless steel ball pen point |
| CN102632744A (en) * | 2012-04-28 | 2012-08-15 | 林大喜 | 670 pen point and production technique thereof |
| CN202428879U (en) * | 2011-08-31 | 2012-09-12 | 青岛昌隆文具有限公司 | Double-ball pen head |
| CN102848793A (en) * | 2011-12-15 | 2013-01-02 | 上海晨光文具股份有限公司 | Needle tubing spring pen point and ball-point pen cartridge comprising same |
| CN104551570A (en) * | 2015-01-13 | 2015-04-29 | 林大喜 | 670 pen point processing method and 670 pen point prepared based on method |
| CN109203763A (en) * | 2018-10-19 | 2019-01-15 | 上海晨光文具股份有限公司 | Spring pen head, emulsion ink pen core and emulsion ink pen |
| CN112517432A (en) * | 2020-11-13 | 2021-03-19 | 温州昌诚文化用品有限公司 | Automatic assembling equipment for double-ball pen point |
| CN112721494A (en) * | 2021-02-08 | 2021-04-30 | 上海晨光文具股份有限公司 | Needle tube type spring pen point and processing technology thereof |
-
2021
- 2021-10-26 CN CN202111246961.7A patent/CN113857791A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2779991A1 (en) * | 1998-06-19 | 1999-12-24 | Bic Si Support Ind | Writing tip for ball point pen |
| JP2005279979A (en) * | 2004-03-29 | 2005-10-13 | Zebra Pen Corp | Ball-point pen tip and its manufacturing method |
| CN200960786Y (en) * | 2006-05-30 | 2007-10-17 | 毛应仕 | Double-ball spring type neutral stainless steel ball pen point |
| CN202428879U (en) * | 2011-08-31 | 2012-09-12 | 青岛昌隆文具有限公司 | Double-ball pen head |
| CN102848793A (en) * | 2011-12-15 | 2013-01-02 | 上海晨光文具股份有限公司 | Needle tubing spring pen point and ball-point pen cartridge comprising same |
| CN102632744A (en) * | 2012-04-28 | 2012-08-15 | 林大喜 | 670 pen point and production technique thereof |
| CN104551570A (en) * | 2015-01-13 | 2015-04-29 | 林大喜 | 670 pen point processing method and 670 pen point prepared based on method |
| CN109203763A (en) * | 2018-10-19 | 2019-01-15 | 上海晨光文具股份有限公司 | Spring pen head, emulsion ink pen core and emulsion ink pen |
| CN112517432A (en) * | 2020-11-13 | 2021-03-19 | 温州昌诚文化用品有限公司 | Automatic assembling equipment for double-ball pen point |
| CN112721494A (en) * | 2021-02-08 | 2021-04-30 | 上海晨光文具股份有限公司 | Needle tube type spring pen point and processing technology thereof |
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