CN110978861B - Necking method of large-diameter needle tube pen point - Google Patents
Necking method of large-diameter needle tube pen point Download PDFInfo
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- CN110978861B CN110978861B CN201911345155.8A CN201911345155A CN110978861B CN 110978861 B CN110978861 B CN 110978861B CN 201911345155 A CN201911345155 A CN 201911345155A CN 110978861 B CN110978861 B CN 110978861B
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- processing
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- needle tube
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- pen point
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K15/00—Assembling, finishing, or repairing pens
- B43K15/02—Automatic machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K7/00—Ball-point pens
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Abstract
The invention relates to a necking method of a large-diameter needle tube pen point, wherein a transmission seat transmits the needle tube pen point to the lower part of a first necking device, a processing seat descends, the needle tube pen point enters a processing hole from a feed inlet and jacks up a processing part of a processing ball at the same time, the processing ball ascends along a movable channel until reaching a processing position, a force application mechanism extrudes the processing ball downwards while the processing seat coaxially rotates relative to the transmission seat, the processing ball rotates along with the processing seat, the necking is completed after the processing ball descends to a specified height, the processing seat stops rotating, the processing seat ascends, the processing ball moves upwards along the surface behind the needle tube necking pen point until the needle tube pen point completely separates from the processing seat, the transmission seat transmits the pen point needle tube to the next necking device for necking, and the necking depth is larger than that of the previous necking device. By adopting the scheme, the invention provides the necking method of the large-diameter needle tube pen point, which can ensure the molding effect of the needle tube pen point during necking.
Description
Technical Field
The invention relates to the field of pen point processing, in particular to a necking method of a large-diameter needle tube pen point.
Background
The needle tube pen point is a pen point processed by a needle tube in sections. The specification of a traditional needle tube pen point is generally 0.4 mm-1.2 mm, and with the increasing demand of users, a large-diameter needle tube pen point with the specification of 1.2 mm-2.0 mm is required for writing.
When a needle tube pen point is processed, necking needs to be carried out at a position close to the needle tube pen point to form a ball support for supporting a ball, the pen point is placed into a specified mould by a traditional ball support processing method, so that the needle tube pen point is extruded from outside to inside to form the ball support by extrusion force generated when the mould is closed, however, larger extrusion force is needed when the needle tube pen point is extruded along with the increase of the pipe diameter of the needle tube pen point, the extrusion force is easy to cause irregular deformation of the needle tube pen point once being too large, and the rejection rate is further improved, so that the traditional processing mode cannot be suitable for processing the large-diameter needle tube pen point.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a necking method of a large-diameter needle tube pen point, which can ensure the molding effect of the needle tube pen point during necking.
In order to achieve the purpose, the invention provides the following technical scheme: the processing seat is provided with a plurality of processing balls and a movable channel for the vertical movement of each processing ball, the processing balls partially extend into the processing holes, the part of each processing ball extending into the processing holes is used as a processing part for extruding the needle tube, the movable channel gradually approaches to the processing holes along with the reduction of the height, the processing part is gradually increased when the processing balls descend along the movable channel, the processing seat and the transmission seat can relatively ascend and descend and can relatively coaxially rotate, and a force application mechanism for downwards extruding the processing balls is arranged in the processing seat,
the needle tube pen point is transmitted to the lower part of a first necking device by the transmission seat, the processing seat descends, the needle tube pen point enters the processing hole from the feed inlet and jacks up the processing part of the processing ball while entering, so that the processing ball ascends along the movable channel until reaching a processing position, the processing seat coaxially rotates relative to the transmission seat and simultaneously presses the processing ball downwards by the force application mechanism, the processing ball automatically rotates along with the revolution of the processing seat, necking is completed after the processing ball descends to a designated height, the processing seat stops rotating, the processing seat ascends and moves upwards along the surface of the needle tube pen point after being necked until the needle tube pen point is completely separated from the processing seat, the transmission seat transmits the needle tube pen point to the next necking device to carry out the same necking, and the necking depth is larger than that of the previous necking device until the pen point of the needle tube is necked once by all the necking devices.
By adopting the technical scheme, firstly, the structure of the necking device is changed, the needle tube pen point is extruded by the processing ball to carry out necking, stable and concentrated extrusion force can be generated at the needle tube pen point due to point contact between the processing ball and the needle tube pen point, thereby ensuring the necking effect, simultaneously reducing the output requirement on the force application mechanism, then, in the extrusion process of the processing ball, the processing seat coaxially rotates relative to the transmission seat, the processing ball revolves along with the processing seat and rotates under the driving of the surface damping of the needle tube pen point in the rotation process, the necking is more uniform, the necking effect is optimized, in addition, the previous single necking is replaced by multiple times of necking, the requirement of each time on the extrusion force is reduced, the irregular deformation caused by the overlarge extrusion force is avoided, the necking effect is ensured, meanwhile, the time consumed by the single necking time is reduced, namely the single-station time length of the automatic equipment is reduced, the processing efficiency is effectively improved.
The invention is further configured to: and the necking depth of the next necking device is 0.2-0.3 mm greater than that of the previous necking device.
Through adopting above-mentioned technical scheme, the necking down increase degree can be adjusted as required, prefers 0.2~0.3mm, compromises necking down effect and machining efficiency.
The invention is further configured to: the transmission seat comprises a clamp for clamping the pen point of the needle tube and a displacement mechanism for driving the clamp to move along the arrangement direction of the necking device.
Through adopting above-mentioned technical scheme, displacement mechanism drive anchor clamps remove, realize the automatic transmission of transmission seat at the necking down device to improve machining efficiency.
The invention is further configured to: the device is characterized by further comprising a rotating mechanism and a lifting mechanism, wherein the rotating mechanism drives the processing seat to coaxially rotate relative to the transmission seat, and the lifting mechanism drives the rotating mechanism and the processing seat to lift relative to the transmission seat.
Through adopting above-mentioned technical scheme, rotary mechanism drive processing seat is coaxial rotatory relatively the transmission seat to lift together with the processing seat under elevating system drives, realized the function that processing seat is rotatory and goes up and down.
The invention is further configured to: the movable channel is provided with an extending hole which is communicated with the processing hole and is used for extending a processing part of the processing ball into the processing hole and a force application hole which is opposite to the force application mechanism and is used for extending the force application mechanism into, and the two sides of the extending hole of the movable channel are respectively provided with a limiting part which is used for limiting the processing ball to completely enter the processing hole.
Through adopting above-mentioned technical scheme, the hole that stretches out that has spacing part avoids the processing ball to fall into the downthehole normal work that influences of processing, and the application of force hole makes force applying mechanism get into the movable channel smoothly and carries out the application of force to the processing ball.
The invention is further configured to: force application mechanism quantity for having the multiunit and along circumference equidistance arrangement in processing seat, each force application mechanism include application of force passageway, application of force piece and telescopic machanism, the application of force passageway be located the movable channel top, application of force piece remove and stretch into the movable channel along application of force passageway under telescopic machanism's drive in, application of force piece have with the contact inclined plane of processing ball contact, this contact inclined plane is along with the decline of height keeps away from the processing ball gradually.
By adopting the technical scheme, the force application block is driven by the telescopic mechanism to move along the force application channel and extend into the movable channel, so that the needle tube pen point is necked down by extruding the processing part of the processing ball.
Drawings
FIG. 1 is a functional block diagram of an embodiment of the present invention;
FIG. 2 is a schematic illustration of the construction of a necking apparatus in an embodiment of the present invention;
fig. 3 is a top view of the movable tunnel according to the embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in figures 1-3, the invention discloses a method for necking a large-diameter needle tube pen point, which comprises more than two necking devices 1 which are sequentially arranged and a transmission seat 2 which is positioned below the necking devices 1 and transmits the needle tube pen point between the necking devices 1, wherein each necking device 1 comprises a processing seat 11, the processing seat 11 is vertically provided with a processing hole 12, the processing hole 12 extends to the bottom of the processing seat 11 and forms a feed inlet 13 for the needle tube pen point to extend into, the processing seat 11 is provided with a plurality of processing balls 14 and movable channels 15 for the processing balls 14 to vertically move around the processing hole 12, the processing balls 14 partially extend into the processing hole 12, the part of the processing ball 14 extending into the processing hole 12 is used as a processing part 141 for extruding the needle tube pen point, the movable channels 15 gradually approach the processing hole 12 along with the reduction of the height, the processing part 141 is gradually increased when the processing balls 14 descend along the movable channels 15, the processing seat 11 and the transmission seat can relatively lift and relatively coaxially rotate, and a force application mechanism 16 for pressing the processing ball 14 downwards is arranged in the processing seat 11.
The transmission seat 2 transmits the needle tube pen point to the lower part of the first necking device 1, the processing seat 11 descends, the needle tube pen point enters the processing hole 12 from the feeding hole 13, the processing part 141 of the processing ball 14 is jacked up while entering, the processing ball 14 ascends along the movable channel 15 until reaching a processing position, the force application mechanism 16 extrudes the processing ball 14 downwards while the processing seat 11 coaxially rotates relative to the transmission seat, the processing ball 14 rotates along with the processing seat 11 while revolving, the necking is completed after the processing ball 14 descends to a specified height, the processing seat 11 stops rotating, the processing seat 11 ascends, the processing ball 14 moves upwards along the surface of the needle tube pen point after being necked until the needle tube pen point is completely separated from the processing seat 11, the transmission seat 2 transmits the needle tube pen point to the next necking device 1 to carry out the same necking, and the necking depth is larger than that of the previous necking device 1, until the needle tube pen point is necked down once by all necking down devices 1, firstly, the structure of the necking down device 1 is changed, the needle tube pen point is squeezed by the processing ball 14 to carry out necking down, because the processing ball 14 is in point contact with the needle tube pen point, stable and concentrated squeezing force can be generated at the needle tube pen point, thereby ensuring necking down effect, simultaneously reducing output requirements on the force application mechanism 16, then, in the squeezing process of the processing ball 14, the processing seat 11 coaxially rotates relative to the transmission seat, the processing ball 14 revolves along with the processing seat 11 in the rotating process and rotates under the driving of surface damping of the needle tube pen point, thereby leading necking down to be more uniform, optimizing necking down effect, in addition, the previous single necking down is replaced by multiple times of necking down, reducing the requirements on squeezing force at each time, avoiding irregular deformation caused by overlarge squeezing force, thereby ensuring necking down effect, and simultaneously reducing the time consumed by single necking, the time length of a single station of the automatic equipment is reduced, and the processing efficiency is effectively improved.
The necking down degree of depth 0.2~0.3mm that next necking down device 1 is greater than last necking down device 1, and the necking down increase degree can be adjusted as required, prefers 0.2~0.3mm, compromises necking down effect and machining efficiency.
The transmission seat 2 comprises a clamp 21 for clamping the pen point of the needle tube and a displacement mechanism 22 for driving the clamp 21 to move along the arrangement direction of the necking device 1, the displacement mechanism 22 drives the clamp 21 to move, automatic transmission of the transmission seat 2 on the necking device 1 is achieved, and therefore machining efficiency is improved, and the displacement mechanism can be a disc, a conveyor belt, a transmission chain and the like.
The machining seat is characterized by further comprising a rotating mechanism 17 and a lifting mechanism 18, the rotating mechanism 17 drives the machining seat 11 to coaxially rotate relative to the transmission seat, the lifting mechanism 18 drives the rotating mechanism 17 and the machining seat 11 to lift relative to the transmission seat, the rotating mechanism 17 drives the machining seat 11 to coaxially rotate relative to the transmission seat and lift together with the machining seat 11 under the driving of the lifting mechanism 18, the rotating and lifting functions of the machining seat 11 are achieved, the rotating mechanism 17 can be a motor, and the lifting mechanism 18 can be an air cylinder.
The movable channel 15 is provided with an extending hole 151 communicated with the machining hole 12 and used for extending the machining part 141 of the machining ball 14 into the machining hole 12 and a force application hole 152 opposite to the force application mechanism 16 and used for extending the force application mechanism 16 into the machining hole 12, the movable channel 15 is positioned on two sides of the extending hole 151 and is respectively provided with a limiting part 153 used for limiting the machining ball 14 to completely enter the machining hole 12, the extending hole 151 with the limiting part 153 prevents the machining ball 14 from falling into the machining hole 12 to influence normal work, and the force application hole 152 enables the force application mechanism 16 to smoothly enter the movable channel 15 to apply force to the machining ball 14.
The force application mechanisms 16 are arranged in the processing seat 11 in a plurality of groups at equal intervals along the circumferential direction, the force application mechanisms 16 comprise force application channels 161, force application blocks 162 and telescopic mechanisms 163, the force application channels 161 are positioned above the movable channels 15, the force application blocks 162 move along the force application channels 161 under the driving of the telescopic mechanisms 163 and extend into the movable channels 15, the force application blocks 162 are provided with contact inclined surfaces 1621 which are in contact with the processing balls 14, the contact slope 1621 gradually gets away from the processing ball 14 along with the descending of the height, the telescopic mechanism drives the force application block to move along the force application channel and extend into the movable channel, therefore, the needle nib is constricted by pressing the processing portion of the processing ball, the telescoping mechanism 163 is a cylinder, and the force applying block 162 is engaged with the contact slope 1621 to apply a pressing force to the processing ball and also apply a pressing force to the inside, thereby further increasing the pressing effect of the telescoping mechanism 163 with the same output.
Claims (6)
1. A necking method of a large-diameter needle tube pen point is characterized in that: the processing seat is provided with a plurality of processing balls and a movable channel for the vertical movement of each processing ball, the processing balls partially extend into the processing holes, the part of each processing ball extending into the processing holes is used as a processing part for extruding the needle tube, the movable channel gradually approaches to the processing holes along with the reduction of the height, the processing part is gradually increased when the processing balls descend along the movable channel, the processing seat and the transmission seat can relatively ascend and descend and can relatively coaxially rotate, and a force application mechanism for downwards extruding the processing balls is arranged in the processing seat,
the needle tube pen point is transmitted to the lower part of a first necking device by the transmission seat, the processing seat descends, the needle tube pen point enters the processing hole from the feed inlet and jacks up the processing part of the processing ball while entering, so that the processing ball ascends along the movable channel until reaching a processing position, the processing seat coaxially rotates relative to the transmission seat and simultaneously presses the processing ball downwards by the force application mechanism, the processing ball automatically rotates along with the revolution of the processing seat, necking is completed after the processing ball descends to a designated height, the processing seat stops rotating, the processing seat ascends and moves upwards along the surface of the needle tube pen point after being necked until the needle tube pen point is completely separated from the processing seat, the transmission seat transmits the needle tube pen point to the next necking device to carry out the same necking, and the necking depth is larger than that of the previous necking device until the pen point of the needle tube is necked once by all the necking devices.
2. The method for necking the tip of the large-diameter needle tube according to claim 1, wherein: and the necking depth of the next necking device is 0.2-0.3 mm greater than that of the previous necking device.
3. The method for necking the tip of the large-diameter needle tube according to claim 1, wherein: the transmission seat comprises a clamp for clamping the pen point of the needle tube and a displacement mechanism for driving the clamp to move along the arrangement direction of the necking device.
4. The method for necking the tip of the large-diameter needle tube according to claim 1, wherein: the device is characterized by further comprising a rotating mechanism and a lifting mechanism, wherein the rotating mechanism drives the processing seat to coaxially rotate relative to the transmission seat, and the lifting mechanism drives the rotating mechanism and the processing seat to lift relative to the transmission seat.
5. The method for necking the tip of the large-diameter needle tube according to claim 1, wherein: the movable channel is provided with an extending hole which is communicated with the processing hole and is used for extending a processing part of the processing ball into the processing hole and a force application hole which is opposite to the force application mechanism and is used for extending the force application mechanism into, and the two sides of the extending hole of the movable channel are respectively provided with a limiting part which is used for limiting the processing ball to completely enter the processing hole.
6. The method for necking the tip of the large-diameter needle tube according to claim 1, wherein: force application mechanism quantity for having the multiunit and along circumference equidistance arrangement in processing seat, each force application mechanism include application of force passageway, application of force piece and telescopic machanism, the application of force passageway be located the movable channel top, application of force piece remove and stretch into the movable channel along application of force passageway under telescopic machanism's drive in, application of force piece have with the contact inclined plane of processing ball contact, this contact inclined plane is along with the decline of height keeps away from the processing ball gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911345155.8A CN110978861B (en) | 2019-12-24 | 2019-12-24 | Necking method of large-diameter needle tube pen point |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911345155.8A CN110978861B (en) | 2019-12-24 | 2019-12-24 | Necking method of large-diameter needle tube pen point |
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| Publication Number | Publication Date |
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| CN110978861A CN110978861A (en) | 2020-04-10 |
| CN110978861B true CN110978861B (en) | 2021-01-15 |
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| CN201911345155.8A Active CN110978861B (en) | 2019-12-24 | 2019-12-24 | Necking method of large-diameter needle tube pen point |
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| CN1321586A (en) * | 2000-04-28 | 2001-11-14 | 百乐墨水株式会社 | Ball-point pen ball point and ball-point pen using same |
| JP2005119281A (en) * | 2003-09-25 | 2005-05-12 | Pilot Ink Co Ltd | Pipe-type ballpoint pen chip and its manufacturing method |
| CN201745285U (en) * | 2010-08-18 | 2011-02-16 | 上海高铨精密五金有限公司 | Improved needle tube type pen head |
| CN103097047A (en) * | 2011-01-14 | 2013-05-08 | 古河电气工业株式会社 | Internally grooved pipe, manufacturing method therefor, and manufacturing device therefor |
| CN103831362A (en) * | 2012-11-23 | 2014-06-04 | 真彩文具股份有限公司 | Rotation necking-down device |
| DE202016101179U1 (en) * | 2016-03-04 | 2016-03-16 | Leifeld Metal Spinning Ag | Device for forming a tubular workpiece |
| JP2016221788A (en) * | 2015-05-28 | 2016-12-28 | 株式会社パイロットコーポレーション | Ball point pen |
| CN206952015U (en) * | 2017-06-30 | 2018-02-02 | 平阳县尚伟笔业有限公司 | Closing device in nib process equipment |
| CN108714653A (en) * | 2018-04-24 | 2018-10-30 | 温州大学 | Pen tip automatic necking machine |
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2019
- 2019-12-24 CN CN201911345155.8A patent/CN110978861B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1321586A (en) * | 2000-04-28 | 2001-11-14 | 百乐墨水株式会社 | Ball-point pen ball point and ball-point pen using same |
| JP2005119281A (en) * | 2003-09-25 | 2005-05-12 | Pilot Ink Co Ltd | Pipe-type ballpoint pen chip and its manufacturing method |
| CN201745285U (en) * | 2010-08-18 | 2011-02-16 | 上海高铨精密五金有限公司 | Improved needle tube type pen head |
| CN103097047A (en) * | 2011-01-14 | 2013-05-08 | 古河电气工业株式会社 | Internally grooved pipe, manufacturing method therefor, and manufacturing device therefor |
| CN103831362A (en) * | 2012-11-23 | 2014-06-04 | 真彩文具股份有限公司 | Rotation necking-down device |
| JP2016221788A (en) * | 2015-05-28 | 2016-12-28 | 株式会社パイロットコーポレーション | Ball point pen |
| DE202016101179U1 (en) * | 2016-03-04 | 2016-03-16 | Leifeld Metal Spinning Ag | Device for forming a tubular workpiece |
| CN206952015U (en) * | 2017-06-30 | 2018-02-02 | 平阳县尚伟笔业有限公司 | Closing device in nib process equipment |
| CN108714653A (en) * | 2018-04-24 | 2018-10-30 | 温州大学 | Pen tip automatic necking machine |
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