CN113545836B - Steel needle bending device - Google Patents
Steel needle bending device Download PDFInfo
- Publication number
- CN113545836B CN113545836B CN202110680029.9A CN202110680029A CN113545836B CN 113545836 B CN113545836 B CN 113545836B CN 202110680029 A CN202110680029 A CN 202110680029A CN 113545836 B CN113545836 B CN 113545836B
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- steel needle
- clamping
- scraping
- sleeve
- 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
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- Portable Nailing Machines And Staplers (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention provides a steel needle bending 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 provided with bending force applied to the steel needle rotates around the clamping piece, a scraping cutting edge used for scraping the steel needle and the clamping piece form a scraping notch on the contact, and the scraping cutting edge continuously rotates along the scraping notch to scrape and cut off the clamped steel needle. In the prior art, the steel needle is always clamped by the clamp head, then the steel needle is bent by the other clamp in the clamped state, and time and labor are wasted; the limiting groove is arranged on one side of the clamping piece, so that the clamping piece is convenient to bend, scratch and release; the ratchet wrench is arranged, and the bending and scraping processes are labor-saving.
Description
Technical Field
The present application is a divisional application of application number 2015102149547, with application date 2015 being 4 months and 30 days.
The invention relates to a forming cutting method and a forming cutter for surgical operation parts, in particular to a bending scraping method and a bending cutter for an orthopaedics steel needle.
Background
In the bone surgery, steel needles are commonly used as the steel needles for the butt joint and fixation of broken bones, and the diameters of the steel needles are about twenty centimeters and are different in several specifications between 0.5 and 4 millimeters. The fracture fixation device is used for fixing short and small fracture or avulsion fracture and other fracture fixation with low stress, and is also commonly used for fixing temporary fracture blocks in orthopedic operation. The steel needle can be cut according to the size of the butt joint bone in the operation, 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 left on the surface of the bone can be prevented from piercing out the skin or sinking into the bone surface and can not be taken out in the future. At present, a needle holder or a clamp head is often used for completing bending work, so that time and labor are often wasted, a handle in a patent with a publication number of CN87212315U must be rotated for bending a steel needle, the side plane of a needle pressing block is always in contact with the steel needle in the bending process, the length of the whole bending device is too long, and the bending device is very inconvenient to use, so that the bending device capable of bending the steel needle into a required angle at one time is not available at present, and the bending device is not used for continuously cutting the steel needle. 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 break off in the bending and scraping process; when the fixed slot is used as a rotating shaft, the volumes at two sides of the fixed slot are small, and it is difficult to continuously arrange additional clamping pieces on the fixed slot.
Disclosure of Invention
The invention solves the technical problem of continuously applying clamping force to the steel needle 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 be equipped with the contact that applys the bending force to the steel needle and rotate around the holder, be used for scraping the scraping cutting edge and the holder formation of cutting the steel needle on the contact and scrape the incision, scrape the cutting edge and continue the rotation along scraping the incision and scrape the steel needle of cutting off with the centre gripping.
The steel needle bending and scraping device is characterized in that the clamping piece comprises two clamping pieces for clamping the steel needle, a limiting groove is formed in one of the two clamping pieces at the end parts of the two clamping pieces, and the steel needle is prevented from falling out in the scraping and cutting process by the limiting groove.
The steel needle bending and scraping device is characterized in that the end parts of the two clamping sheets are provided with forming core blocks, the contact applies bending force to the steel needle to enable the steel needle to bend around the forming core blocks, a scraping cutting edge used for scraping the steel needle and forming core block sides on the contact form a scraping notch, and the scraping cutting edge continuously rotates along the scraping notch to scrape and cut off 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 the contact.
The steel needle bending scraping device is characterized in that the sleeve is provided with a limiting baffle ring, and the limiting baffle ring prevents the sleeve from falling out of the conical profile clamping piece during scraping.
The steel needle bending and scraping device is characterized in that the clamping piece for clamping the steel needle is a nipper pliers, two clamping pieces at the head of the nipper pliers are two clamping pieces for clamping the steel needle by the clamping piece, the limiting grooves at the end parts of the two clamping pieces and the forming core block are used for clamping the steel needle, and the clamping handles of the nipper pliers provide 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 into 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 matched part of the sleeve and the ratchet wrench is the shape of a nut matched with the ratchet wrench.
A steel needle bending and scraping method comprises the following steps:
the method comprises the steps that a steel needle is clamped at the end head of a rotating shaft, and the steel needle exposes one end needing bending and scraping;
secondly, bending the steel needle by applying bending force rotating around the rotating shaft at one end needing bending and scraping;
thirdly, the steel needle after being bent to a required angle is limited to continue bending, and the steel needle is limited to continue bending by the core block at the end of the rotating shaft;
and fourthly, continuously applying scraping force to scrape and cut off the steel needle around the blade rotating around the rotating shaft.
In the prior art, the steel needle is always clamped by the clamp head, then the steel needle is bent by the other clamp in the clamped state, and time and labor are wasted; the limiting groove is arranged on one side of the clamping piece, so that the clamping piece is convenient to bend, scratch and release; the ratchet wrench is arranged, and the bending and scraping processes are labor-saving.
Drawings
Fig. 1 is a schematic view of the open structure of the clamp of the present invention.
Fig. 2 is a schematic view of the closure of the clamp, the doctor blade and the side formation of the formed core block of the present invention, showing a doctor blade configuration.
Fig. 3 is a schematic view of the grip of fig. 1 gripping a steel needle.
FIG. 4 is a schematic cross-sectional view of the tapered sleeve cone shaft and the cone sleeve fixed limit stop ring of the invention.
Fig. 5 is a schematic view of the structure of the nipper pliers.
Fig. 6 is a schematic view of the structure of the sleeve or tapered sleeve fixed pulling handle of the present invention.
Fig. 7 is a schematic view of the steel needle bending process 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 opening and closing parts for clamping the steel needle, the two opening and closing parts of the clamping piece 1 serve as rotating shafts, the rotating shafts can be cylindrical or conical, a contact 3 with bending force applied to the steel needle can rotate around the clamping piece 1, namely the contact 3 rotates around the rotating shafts, a scraping cutting edge 4 for scraping the steel needle on the contact 3 and a formed core block 6 side 61 at one side end part of the clamping piece 1 form a scraping notch, the scraping cutting edge 4 continuously rotates along the scraping cutting notch, the steel needle is scraped in the rotating process until the scraping cutting edge 4 contacts with the formed core block 6 side 61 (the distance can be short, the steel needle is broken), and the clamped steel needle is scraped and cut.
The steel needle bending and scraping device is 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 two clamping pieces at the end parts of the two clamping pieces, and the limiting groove 5 prevents the steel needle from falling off in the scraping and cutting process. The limiting groove 5 is formed in the clamping piece at one side, because the bent steel needle 80 abuts against two surfaces or three surfaces of the formed core block 6, if the patent with the priority of patent number 2014206616135 is required in the patent, after the bent steel needle 80 is scraped, the steel needle needs to be separated from the formed core block 6, and the groove is formed in the surface of the formed core block 6 for clamping the steel needle, so that the steel needle is not easy to separate from the formed core block 6, and of course, the demoulding inclination can be designed at the side of the formed core block 6, so that the formed core block 6 is convenient to separate from the bent scraped steel needle 80.
The steel needle bending and scraping device is characterized in that the end parts of the two clamping sheets are provided with a forming core block 6, the contact 3 applies bending force to the steel needle to enable the steel needle to bend around the forming core block 6, the forming core block 6 is a cylinder, a scraping cutting edge 4 used for scraping the steel needle on the contact 3 forms a scraping notch with the side of the forming core block 6, the side of the forming core block 6 forming the scraping notch with the scraping cutting edge 4 can be an intersecting line 61 of two side surfaces of the forming core block 6, or an arc surface concentric with the rotating path of the scraping cutting edge 4, such as a side arc surface of the forming core block 6 in the figure, and the scraping cutting edge 4 continuously rotates along the scraping cutting 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 steel needle, which corresponds to the inner contour shape of the hook.
At this time, as shown in fig. 1, the two opening and closing members of the holding member 1 are opened, the steel needle 80 is placed in the opening, then, the two opening and closing members of the holding member 1 are closed, as shown in fig. 3, the steel needle 80 is held by the corresponding sides of the limit groove 5 and the formed 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 is bent to a desired bending shape, the scraping cutting edge 4 of the contact 3 and the intersecting line 61 of the two sides of the formed core block 6 form a scraping cut, the contact 3 is continuously rotated, the scraping cutting edge 4 of the contact 3 scrapes and cuts the steel needle 80, then, the two opening and closing members are opened, and the formed core block 6 is separated from the bent and scraped steel needle 80.
According to the steel needle bending and scraping device, the outer sides of the two clamping pieces form conical profiles, and under the condition that the diameters of the end parts are the same, the conical profiles can bear larger torque, so that the diameter of the end parts is as small as possible; the sleeve 302 is sleeved outside the conical profile, and the sleeve 302 is connected with the fixed contact 3. The inner contour of the sleeve 302 is matched with the outer sides of the two clamping pieces to form a conical contour, and of course, if the outer sides of the two clamping pieces form 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 conical contour or a columnar contour.
The steel needle bending scraping device as shown in fig. 4, wherein the sleeve 302 is provided with a limiting stop ring 3021, and the limiting stop ring 3021 and the conical surface prevent the sleeve 302 from being separated from the conical profile clamping piece 1 during scraping. Of course, an annular boss or an annular groove can be formed on the outer portion of the clamping piece 1, and the inner surface of the sleeve 302 is matched with the annular groove or the annular boss to prevent the sleeve 302 from being separated from the clamping piece 1.
The steel needle bending and scraping device as shown in fig. 4 and 5, the clamping piece 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 with each other, a revolving body which is in the outer contour of the mouth of the part is arranged along the two ends of the hinge shaft of the common nipper pliers, a groove for the other hinged part to move is reserved, two clamping pieces of a jaw of the head of the nipper pliers are two clamping pieces of the clamping piece 1 for clamping the steel needle, the limiting grooves 5 at the end parts of the two clamping pieces of the jaw clamp the steel needle with the forming core block 6, and the clamping handle 10 of the nipper pliers provides clamping force.
As shown in fig. 6, the sleeve 302 is provided with a pulling handle 3022, and the pulling handle 3022 provides bending scraping force for the contact 3 and the scraping blade 4 thereof. Thus, the grip handle 10 of the nipper pliers provides a gripping force and secures the nipper pliers, and the pull handle 3022 provides a bending and scraping force, and is generally suitable for steel needles having diameters of 2mm and less.
As shown in fig. 7, a fixed handle 3023 is provided on the side of the nipper pliers 10 and is engaged with a pulling handle 3022, and the pulling handle 3022 and the fixed handle 3023 are engaged as a pair of hand-held handles. Because the pulling handle 3022 and the fixed handle 3023 are matched to form a pair of hand-held handles, the holding handle 10 of the nipper pliers is not affected by the bending scraping force provided by the pulling handle 3022, and at this time, the nipper pliers are generally suitable for steel needles with diameters of 2mm-4 mm.
In the steel needle bending and scraping device, the pulling handle 3022 is a ratchet wrench, and the shape of the portion of the sleeve 302 matched with the ratchet wrench is the shape of a nut matched with the ratchet wrench. Since the pulling handle 3022 is a ratchet wrench, it is more convenient to use.
A steel needle bending and scraping method comprises the following steps:
the method comprises the steps that a steel needle is clamped at the end head of a rotating shaft, and the steel needle exposes one end needing bending and scraping;
secondly, bending the steel needle by applying bending force rotating around the rotating shaft at one end needing bending and scraping;
thirdly, the steel needle after being bent to a required angle is limited to continue bending, and the steel needle is limited to continue bending by the core block at the end of the rotating shaft;
and fourthly, continuously applying scraping force to scrape and cut off the steel needle around the blade rotating around the rotating shaft.
The explanation of the steel needle bending and scraping method can be referred to the embodiment of the steel needle bending and scraping device.
Claims (5)
1. A steel needle bending device which is characterized in that: the device comprises a clamping piece (1) for clamping a steel needle, wherein the clamping piece (1) is a nipper pliers, two clamping pieces of a jaw of the nipper pliers head are two clamping pieces of the clamping piece (1) for clamping the steel needle, and the two clamping pieces of the jaw of the nipper pliers head are used as rotating shafts, so that a contact (3) for applying bending force to the steel needle rotates around the two clamping pieces of the jaw of the nipper pliers head; 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 parts is as small as possible; the sleeve (302) is sleeved outside the conical outline, and the sleeve (302) is connected with the fixed contact (3); the inner contour of the sleeve (302) is matched with the conical contour formed on the outer sides of the two clamping pieces, or the outer sides of the two clamping pieces form a cylinder, and the inner contour of the sleeve (302) is a matched circular tube; the outer contour of the sleeve (302) is a tapered or cylindrical contour.
2. The steel needle bending device as set forth in claim 1, wherein: the clamping piece (1) comprises two clamping pieces for clamping the steel needle, and a limiting groove (5) is formed in one of the two clamping pieces at the end of the two clamping pieces.
3. The steel needle bending device as set forth in claim 2, wherein: the end parts of the two clamping sheets and the other clamping sheet are provided with forming core blocks (6).
4. A steel needle bending device as claimed in claim 3 wherein: the sleeve (302) is provided with a limiting retainer ring (3021), and when the sleeve is bent, the limiting retainer ring (3021) prevents the sleeve (302) from falling out of the conical profile clamping piece (1).
5. The steel needle bending device of claim 4, wherein: the clamping piece (1) for clamping the steel needle is a nipper pliers, two clamping pieces at the head of the nipper pliers are two clamping pieces for clamping the steel needle by the clamping piece (1), a limiting groove (5) at the end part of the two clamping pieces and a forming core block (6) are used for clamping the steel needle, and a clamping handle (10) of the nipper pliers provides clamping force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110680029.9A CN113545836B (en) | 2014-11-07 | 2015-04-30 | Steel needle bending device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420661613 | 2014-11-07 | ||
| CN201510214954.7A CN108143478B (en) | 2014-11-07 | 2015-04-30 | Steel needle bending and scraping device |
| CN202110680029.9A CN113545836B (en) | 2014-11-07 | 2015-04-30 | Steel needle bending device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510214954.7A Division CN108143478B (en) | 2014-11-07 | 2015-04-30 | Steel needle bending and scraping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113545836A CN113545836A (en) | 2021-10-26 |
| CN113545836B true CN113545836B (en) | 2023-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510214954.7A Active CN108143478B (en) | 2014-11-07 | 2015-04-30 | Steel needle bending and scraping device |
| CN202110680029.9A Active CN113545836B (en) | 2014-11-07 | 2015-04-30 | Steel needle bending device |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510214954.7A Active CN108143478B (en) | 2014-11-07 | 2015-04-30 | Steel needle bending and scraping device |
Country Status (1)
| Country | Link |
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| CN (2) | CN108143478B (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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| CN203751988U (en) * | 2014-01-27 | 2014-08-06 | 杭州巨星科技股份有限公司 | Sharp-nose pliers with stripping function |
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- 2015-04-30 CN CN202110680029.9A patent/CN113545836B/en active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108143478B (en) | 2021-06-29 |
| CN108143478A (en) | 2018-06-12 |
| CN113545836A (en) | 2021-10-26 |
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