CN108143478B - Steel needle bending and scraping device - Google Patents
Steel needle bending and scraping device Download PDFInfo
- Publication number
- CN108143478B CN108143478B CN201510214954.7A CN201510214954A CN108143478B CN 108143478 B CN108143478 B CN 108143478B CN 201510214954 A CN201510214954 A CN 201510214954A CN 108143478 B CN108143478 B CN 108143478B
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- steel needle
- scraping
- clamping
- bending
- clamping piece
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Abstract
The invention provides a steel needle bending and scraping device which comprises a clamping piece for clamping a steel needle, wherein the clamping piece is used as a rotating shaft, so that a contact head for applying bending force to the steel needle rotates around the clamping piece, a scraping and cutting edge for scraping and cutting the steel needle on the contact head and the clamping piece form a scraping notch, and the scraping and cutting edge continuously rotates along the scraping notch to scrape and cut off the clamped steel needle. The invention adopts the binding clip in the prior art, often clamp the steel needle first, then bend it with another pliers under the state of clamping, waste time and energy, the invention adopts the binding clip (grip) to clamp the steel needle at first, accord with the common clamping habit, then use and bend and scrape and cut the organization and stir the steel needle and bend around shaping pellet by the shifting block rotating around the axis of rotation to form the necessary hook-like bend, later scrape and cut the steel needle, scrape and cut the course, clamp the steel needle all the time; a limiting groove is formed in one side of the clamping piece, so that the clamping piece can be conveniently bent and separated after being scraped; the ratchet wrench is arranged, so that the bending and scraping processes are labor-saving.
Description
Technical Field
The invention relates to a forming and cutting method and a forming and cutting device for surgical parts, in particular to a bending and scraping method and a bending and scraping device for an orthopedic steel needle.
Background
In the bone surgery, the steel needle is usually used as the steel needle for the butt joint and fixation of broken bones, generally the steel needle is about twenty centimeters, and the diameter of the steel needle is between 0.5 and 4 millimeters with different specifications. The bone fracture fixation device is used for fixing short fractures or avulsion fractures and other fractures with low stress, and is also commonly used for fixing temporary fracture blocks in orthopedic operations. During operation, the steel needle can be cut according to the size of the butted bone, then the steel needle is inserted into the drilled bone for fixing, and the bent steel needle is exposed out of the bone, so that the needle tail remained on the surface of the bone is prevented from pricking skin or submerging into the surface of the bone and being incapable of being taken out at a later date. At present, the needle holder or the binding clip is often used to accomplish the work of bending, often waste time and energy, and the handle in the patent with the publication number of CN87212315U must rotate 180 degrees and just can bend the steel needle, and at the in-process of bending, the side plane of pressing the needle piece contacts with the steel needle all the time for whole bender length is too long, and it is very inconvenient to use, so, does not have the bender that can once roll over the steel needle for required angle at present, dares not to use the bender to continue to cut the steel needle more. In the last patent applied by the company, the steel needle is limited by the fixing groove, so that the steel needle is easy to separate in the bending and scraping process; when the fixing groove is used as a rotating shaft, the volumes of the two sides of the fixing groove are small, and it is difficult to continuously arrange an additional clamping piece on the fixing groove.
Disclosure of Invention
The invention solves the technical problem that the steel needle is continuously applied with clamping force in the bending and scraping process of the steel needle.
The utility model provides a steel needle is bent and is scraped disconnected device, includes the holder of centre gripping steel needle, and the holder is as the rotation axis for the contact that is equipped with to apply the power of bending to the steel needle rotates around the holder, is used for scraping the cutting edge of cutting the steel needle and forms with the holder and scrape the incision, scrapes the cutting edge and continues the rotation to scrape the steel needle of centre gripping along scraping the incision and cut off.
The steel needle bend and scrape off device, the holder includes two holding pieces of centre gripping steel needle, at the tip of two holding pieces, establishes the spacing groove on one of them holding piece, the spacing groove prevents to scrape and cuts in-process steel needle and deviate from.
The steel needle bending and scraping device is characterized in that a forming core block is arranged on the end part of the two clamping pieces and the other clamping piece, a contact applies bending force to the steel needle to bend the steel needle around the forming core block, a scraping cutting edge used for scraping and cutting the steel needle on the contact forms a scraping cut with the side of the forming core block, and the scraping cutting edge continuously rotates along the scraping cut to scrape and cut the bent steel needle.
The steel needle bending and scraping device is characterized in that the outer sides of the two clamping pieces form a conical profile, a sleeve is sleeved outside the conical profile, and the sleeve is connected with a contact.
The steel needle bending and scraping device is characterized in that the sleeve is provided with a limiting stop ring, and the limiting stop ring prevents the sleeve from being separated from the conical profile clamping piece when scraping and cutting.
The steel needle bending and scraping device is characterized in that a clamping piece for clamping the steel needle is a sharp-nose pliers, two clamping pieces of a jaw of a head of the sharp-nose pliers are two clamping pieces for clamping the steel needle by the clamping piece, limiting grooves at the end parts of the two clamping pieces of the jaw and a forming core block clamp the steel needle, and a clamping handle of the sharp-nose pliers provides clamping force.
The steel needle bending and scraping device is characterized in that the sleeve is provided with a pulling handle, and the pulling handle provides bending and scraping force for the contact and the scraping blade thereof.
The steel needle bending and scraping device is characterized in that a fixed handle matched with a pulling handle is arranged on the side of the sharp-nose pliers, and the pulling handle and the fixed handle are matched to form a pair of hand-held handles.
The steel needle bending and scraping device is characterized in that the pulling handle is a ratchet wrench, and the shape of the part, matched with the ratchet wrench, of the sleeve is the shape of a nut matched with the ratchet wrench.
A steel needle bending and scraping method comprises the following steps:
clamping a steel needle at the end of a rotating shaft, wherein the steel needle exposes one end to be bent and scraped;
applying a bending force rotating around a rotating shaft to one end to be bent and scraped to bend the steel needle;
thirdly, the steel needle bent to the required angle is limited to be bent continuously, and the steel needle is limited to be bent continuously by the core block at the end of the rotating shaft;
and fourthly, continuously applying scraping force to the blade rotating around the rotating shaft to scrape and cut off the steel needle.
The invention adopts the binding clip in the prior art, often clamp the steel needle first, then bend it with another pliers under the state of clamping, waste time and energy, the invention adopts the binding clip (grip) to clamp the steel needle at first, accord with the common clamping habit, then use and bend and scrape and cut the organization and stir the steel needle and bend around shaping pellet by the shifting block rotating around the axis of rotation to form the necessary hook-like bend, later scrape and cut the steel needle, scrape and cut the course, clamp the steel needle all the time; a limiting groove is formed in one side of the clamping piece, so that the clamping piece can be conveniently bent and separated after being scraped; the ratchet wrench is arranged, so that the bending and scraping processes are labor-saving.
Drawings
Fig. 1 is a schematic view of the open structure of the clamping member of the present invention.
Figure 2 is a schematic view of the closed clamp, the scraping blade and the side of the formed core block to form a scraping cut.
FIG. 3 is a schematic view of the clamp of FIG. 1 clamping a steel needle.
FIG. 4 is a schematic cross-sectional view of the tapered spindle of the tapered bushing and the retaining ring of the tapered bushing of the present invention.
Fig. 5 is a schematic view of the structure of the nipper pliers.
Fig. 6 is a schematic view of the sleeve or tapered sleeve fixed wrench handle of the present invention.
Fig. 7 is a schematic view of the bending process of the steel needle of the present invention.
Detailed Description
A steel needle bending and scraping device comprises a clamping piece 1 for clamping a steel needle, wherein the clamping piece 1 comprises two open-close parts for clamping the steel needle, the two open-close parts of the clamping piece 1 are used as rotating shafts, the rotating shafts can be cylinders or cones, a contact 3 for applying bending force to the steel needle can rotate around the clamping piece 1, namely the contact 3 rotates around the rotating shafts, a scraping blade 4 for scraping the steel needle on the contact 3 and a side 61 of a forming core block 6 at one side end of the clamping piece 1 form a scraping notch as shown in figure 2, the scraping blade 4 continuously rotates along the scraping notch, the steel needle is scraped during rotation until the scraping blade 4 is in contact with the side 61 of the forming core block 6 (the distance can also be short, so that the steel needle is broken), and the clamped steel needle is scraped and cut.
The steel needle bend and scrape disconnected device, holder 1 includes two holding pieces of centre gripping steel needle, at the tip of two holding pieces, establishes spacing groove 5 on one of them holding piece, spacing groove 5 prevents to scrape and cuts the in-process steel needle and deviate from. The limiting groove 5 is arranged on one side of the clamping piece, because the bent steel needle 80 abuts against two surfaces or three surfaces of the forming core block 6, if the patent with the priority patent number of 2014206616135 is required, the bent steel needle 80 needs to be separated from the forming core block 6 after being scraped, the groove is arranged on the surface of the forming core block 6 for clamping the steel needle, the steel needle is not favorably separated from the forming core block 6, and certainly, the demoulding inclination can be designed on the side of the forming core block 6, so that the forming core block 6 is convenient to separate from the bent and scraped steel needle 80.
The steel needle bending and scraping device is characterized in that a forming core block 6 is arranged on the other clamping block and the end parts of the two clamping blocks, after a contact 3 applies bending force to the steel needle to bend the steel needle around the forming core block 6, the forming core block 6 is a cylinder, a scraping blade 4 used for scraping the steel needle on the contact 3 and the side of the forming core block 6 form a scraping notch, the side of the forming core block 6 forming the scraping notch with the scraping blade 4 can be an intersecting line 61 of two side surfaces of the forming core block 6, and can also be an arc surface concentric with a rotating path of the scraping blade 4, such as a side arc surface of the forming core block 6 in the figure, and the scraping blade 4 continuously rotates along the scraping notch to scrape and cut the bent steel needle. The shape of the shaped core 6 corresponds to the inner curved surface or curve of the needle, which corresponds to the shape of the inner contour of the hook.
At this time, as shown in fig. 1, the two opening and closing parts of the clamping piece 1 are opened, the steel needle 80 is arranged in the opening, then the two opening and closing parts of the clamping piece 1 are closed, as shown in fig. 3, the steel needle 80 is clamped by the limiting groove 5 and the corresponding side surface of the forming core block 6, the contact 3 is abutted against the steel needle, the contact 3 is rotated, the contact 3 presses the steel needle 80 to bend, the steel needle 80 bends to the required bending shape, the scraping and cutting edge 4 of the contact 3 and the intersecting line 61 of the two side surfaces of the forming core block 6 form a scraping and cutting opening, the contact 3 is continuously rotated, the scraping and cutting edge 4 of the contact 3 scrapes and cuts the steel needle 80, then the two opening and closing parts are opened, and the forming core block.
In the steel needle bending and scraping device, the outer sides of the two clamping pieces form a conical profile, and under the condition that the diameters of the end parts are the same, the conical profile can bear larger torque, so that the diameter of the end part is as small as possible; the tapered profile is sleeved outside the sleeve 302, and the sleeve 302 is connected with the fixed contact 3. The inner contour of the sleeve 302 matches the outer contour of the two clamping pieces to form a tapered contour, and of course, if the outer contour of the two clamping pieces forms a cylinder, the inner contour of the sleeve 302 is a matched circular tube, and the outer contour of the sleeve 302 can be a tapered contour or a cylindrical contour.
In the needle bending and scraping device as shown in fig. 4, the sleeve 302 is provided with a limiting stop ring 3021, and the limiting stop ring 3021 and the conical surface jointly prevent the sleeve 302 from falling off from the conical profile clamping member 1 during scraping. Of course, the outer portion of the holder 1 may be provided with an annular projection or an annular groove, and the inner surface of the sleeve 302 matches the annular groove or the annular projection to prevent the sleeve 302 from being released from the holder 1.
The steel needle bending and scraping device as shown in fig. 4 and fig. 5, wherein the clamping member 1 for clamping the steel needle is a nipper pliers, fig. 4 shows the sectional shape of the nipper pliers, but the nipper pliers are one of two parts hinged to each other, a revolving body which is arranged along the outer contour of the mouth of the part is arranged at two ends of a hinge shaft of the common nipper pliers, a groove for the other hinged part to move is reserved, so that two clamping sheets at the head of the nipper pliers are two clamping sheets for clamping the steel needle by the clamping member 1, the limiting grooves 5 at the end parts of the two clamping sheets and the formed core block 6 clamp the steel needle, and the clamping handle 10 of the nipper pliers provides clamping force.
In the needle bending and scraping device shown in fig. 6, the sleeve 302 is provided with a pulling handle 3022, and the pulling handle 3022 provides bending and scraping force for the contact 3 and the scraping and cutting edge 4 thereof. Thus, the nipper is held by the holding handle 10 and fixed, and the bending scraping force is applied by pulling the handle 3022, and the nipper is generally suitable for a steel needle having a diameter of 2mm or less.
In the needle bending and scraping device as shown in fig. 7, a fixed handle 3023 engaged with a pulling handle 3022 is provided at a side of the nipper 10, and the pulling handle 3022 and the fixed handle 3023 are engaged with each other to form a pair of hand-held handles. Since the wrench handle 3022 and the fixed handle 3023 are combined to form a pair of hand-held handles, the grip handle 10 of the nipper pliers is not affected by the bending and scraping force provided by the wrench handle 3022, and is generally suitable for steel needles with a diameter of 2mm to 4 mm.
In the steel needle bending and scraping device, the pulling handle 3022 is a ratchet wrench, and the shape of the part of the sleeve 302 matched with the ratchet wrench is the shape of a nut matched with the ratchet wrench. The wrench handle 3022 is a ratchet wrench, so that the use is more convenient.
A steel needle bending and scraping method comprises the following steps:
clamping a steel needle at the end of a rotating shaft, wherein the steel needle exposes one end to be bent and scraped;
applying a bending force rotating around a rotating shaft to one end to be bent and scraped to bend the steel needle;
thirdly, the steel needle bent to the required angle is limited to be bent continuously, and the steel needle is limited to be bent continuously by the core block at the end of the rotating shaft;
and fourthly, continuously applying scraping force to the blade rotating around the rotating shaft to scrape and cut off the steel needle.
For the explanation of the steel needle bending scraping method, reference can be made to the embodiment of the steel needle bending scraping device.
Claims (9)
1. The utility model provides a steel needle bends and scrapes disconnected device, holder (1) including the centre gripping steel needle, holder (1) is sharp-nosed pliers, two holding pieces of keeping silent of sharp-nosed pliers head are two holding pieces of holder (1) centre gripping steel needle promptly, two holding pieces of keeping silent of sharp-nosed pliers head are as the rotation axis, make be equipped with contact (3) that apply the power of bending to the steel needle and rotate around two holding pieces of keeping silent of sharp-nosed pliers head, be used for scraping two cutting edges (4) of scraping the steel needle and two holding pieces of keeping silent of sharp-nosed pliers head on contact (3) and form and scrape the incision, scrape cutting edge (4) and continue rotatory the steel needle of centre gripping along scraping the incision and scrape the cut-off.
2. The steel needle bending and scraping device as claimed in claim 1, characterized in that: the clamping piece (1) comprises two clamping pieces for clamping the steel needle, a limiting groove (5) is formed in one of the clamping pieces at the end of each clamping piece, and the limiting groove (5) prevents the steel needle from being separated from the scraping and cutting process.
3. The steel needle bending and scraping device as claimed in claim 2, characterized in that: and at the end parts of the two clamping pieces, the other clamping piece is provided with a forming core block (6), the contact (3) applies bending force to the steel needle to bend the steel needle around the forming core block (6), a scraping and cutting edge (4) used for scraping and cutting the steel needle on the contact (3) and the side of the forming core block (6) form a scraping notch, and the scraping and cutting edge (4) continuously rotates along the scraping notch to scrape and cut off the bent steel needle.
4. The steel needle bending and scraping device as claimed in claim 3, characterized in that: the outer sides of the two clamping sheets form a tapered profile, the tapered profile is sleeved with a sleeve (302), and the sleeve (302) is connected with the contact (3).
5. The steel needle bending and scraping device as claimed in claim 4, characterized in that: the sleeve (302) is provided with a limiting stop ring (3021), and the limiting stop ring (3021) prevents the sleeve (302) from being separated from the conical profile clamping piece (1) during scraping.
6. The steel needle bending and scraping device as claimed in claim 5, characterized in that: the clamping piece (1) for clamping the steel needle is a sharp-nose pliers, the two clamping pieces of the jaw of the head of the sharp-nose pliers are the two clamping pieces for clamping the steel needle by the clamping piece (1), the limiting grooves (5) at the end parts of the two clamping pieces of the jaw and the forming core block (6) clamp the steel needle, and a clamping handle (10) of the sharp-nose pliers provides clamping force.
7. The steel needle bending and scraping device as claimed in claim 6, characterized in that: the sleeve (302) is provided with a wrenching handle (3022), and the wrenching handle 3022 provides bending and breaking force for the contact (3) and the scraping and cutting edge (4) thereof.
8. The steel needle bending and scraping device as claimed in claim 7, wherein: the side of the nipper pliers (10) is provided with a fixed handle (3023) matched with the wrenching handle (3022), and the wrenching handle (3022) and the fixed handle (3023) are matched to form a pair of hand-held handles.
9. The steel needle bending and scraping device as claimed in claim 7, wherein: the wrench handle (3022) is a ratchet wrench, and the shape of the part of the sleeve (302) matched with the ratchet wrench is the shape of a nut matched with the ratchet wrench.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110680029.9A CN113545836B (en) | 2014-11-07 | 2015-04-30 | Steel needle bending device |
| CA2977851A CA2977851A1 (en) | 2015-04-30 | 2016-04-30 | Device for bending a kirschner wire |
| JP2017546238A JP6558783B2 (en) | 2015-04-30 | 2016-04-30 | Kirschner Wire Bender |
| PCT/CN2016/080849 WO2016173561A1 (en) | 2015-04-30 | 2016-04-30 | Kirschner wire bending device |
| KR1020177029523A KR102045067B1 (en) | 2015-04-30 | 2016-04-30 | Kirschner wire bending device |
| EP16785989.1A EP3289991A4 (en) | 2015-04-30 | 2016-04-30 | Kirschner wire bending device |
| US15/682,211 US20170340373A1 (en) | 2015-04-30 | 2017-08-21 | Kirschner wire bending device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2014206616135 | 2014-11-07 | ||
| CN201420661613 | 2014-11-07 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110680029.9A Division CN113545836B (en) | 2014-11-07 | 2015-04-30 | Steel needle bending device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108143478A CN108143478A (en) | 2018-06-12 |
| CN108143478B true CN108143478B (en) | 2021-06-29 |
Family
ID=62469274
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110680029.9A Active CN113545836B (en) | 2014-11-07 | 2015-04-30 | Steel needle bending device |
| CN201510214954.7A Active CN108143478B (en) | 2014-11-07 | 2015-04-30 | Steel needle bending and scraping device |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110680029.9A Active CN113545836B (en) | 2014-11-07 | 2015-04-30 | Steel needle bending device |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN113545836B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106109003A (en) * | 2016-08-22 | 2016-11-16 | 郑州泽正技术服务有限公司 | A kind of Kirschner wire apparatus for bending |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108143478A (en) | 2018-06-12 |
| CN113545836B (en) | 2023-04-21 |
| CN113545836A (en) | 2021-10-26 |
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Inventor after: Zhang Weixing Inventor after: Wang Haijun Inventor before: Zhang Weixing |
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