Needle bending device
By designing a needle bending device including a bending punch, a bending seat, a shaping block, a buffering mechanism and a limiting mechanism, the problem of difficult to control the bending force in the prior art, lack of buffering and bending fulcrum points is solved, and the precise bending and stable setting of the steel needle is achieved.
Patent Information
- Application Number
- CN202421252368.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-06-03
AI Technical Summary
The existing bending devices for needles cannot effectively control the bending force and lack buffering, which makes the steel needle easily break or slide during the setting process, and the bend fulcrum is difficult to control.
A bending device for needles is designed, including a bending punch, a bending seat, a shaping block, a buffer mechanism and a limiting mechanism. The bending punch is movably installed on the bending seat. The bending seat is equipped with a fixed block and a buffer mechanism. The buffer mechanism is composed of a buffer spring and a buffer seat. The limiting mechanism accurately controls the stroke of the bending punch through a limiting pin and a limiting hole.
Through this device, the bending position of the steel needle can be accurately controlled, and the buffering mechanism reduces the sudden change of stress on the needle, avoids breaking and sliding of the steel needle, and ensures the accuracy and stability of the bending.
Smart Images
Figure CN222569107U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of bending equipment, and more specifically, relates to a needle bending device. Background Art
[0002] Steel needles are a common auxiliary tool. Medical steel needles often need to be bent. For example, to fix avulsion fractures, the part of the needle that remains outside the bone must be bent to prevent the needle from slipping into the bone marrow cavity after loosening.
[0003] The existing bending device applies pressure to the needle through the upper or lower die, so that the sheet material and the inner surface of the V-groove of the lower die gradually come close to each other. At the same time, the radius of curvature and the bending force arm also gradually become smaller. The pressure is continued until the stroke ends, so that the upper and lower dies are in close contact with the sheet material at three points. At this time, the bending is completed, which is commonly known as bending.
[0004] The existing needle bending device has the following disadvantages: the force of bending the steel needle cannot be controlled, there is a lack of buffer during the shaping process of the steel needle, and the sudden stress change on the steel needle can easily break the steel needle; the steel needle has good toughness, and it is easy to slide when bending, and the bending fulcrum is difficult to control. Summary of the invention
[0005] The purpose of the utility model is to make up for the deficiencies of the prior art and provide a needle bending device. The technical solution adopted in this application is:
[0006] A needle bending device is provided with a bending punch and a bending seat. The bending punch is movably arranged on the bending seat. The bending seat is provided with a shaping block and a buffer mechanism. The buffer mechanism is provided with a buffer spring and a buffer seat. The buffer seat is attached to the buffer spring. The bending seat is linked with the buffer seat. The front end of the bending punch is provided with a shaping protrusion, and the shaping block is arranged in front of the shaping protrusion.
[0007] Preferably, the bending seat is further provided with an orientation mechanism, the orientation mechanism is provided with an orientation groove, and the buffer seat is movably arranged in the orientation groove.
[0008] Preferably, the orientation mechanism is further provided with an orientation bolt and an orientation hole, wherein the orientation bolt is movably arranged in the orientation hole; the orientation hole is arranged at the bottom of the orientation groove, and the buffer seat is linked with the orientation bolt.
[0009] Preferably, the buffer spring is arranged between the buffer seat and the directional groove, and the buffer spring is sleeved outside the directional bolt.
[0010] Preferably, the bending seat is also provided with a clamping mechanism, which is provided with a clamping bolt and a clamping spring, and the clamping spring is abutted against the rear end of the clamping bolt; the front end of the shaping protrusion is provided with a shaping arc, and the clamping bolt is arranged on the side of the shaping block, and the front end of the clamping bolt points to the shaping arc.
[0011] Preferably, the clamping mechanism is further provided with a clamping groove, the clamping bolt is movably arranged in the clamping groove, and the clamping spring is arranged between the clamping bolt and the clamping groove.
[0012] Preferably, the clamping bolt is provided with a first clamping bolt and a second clamping bolt, the clamping spring is provided with a first clamping spring and a second clamping spring, and the clamping groove is provided with a first clamping groove and a second clamping groove; the first clamping bolt and the first clamping spring are arranged in the first clamping groove, and the second clamping bolt and the second clamping spring are arranged in the second clamping groove; the first clamping bolt and the second clamping bolt are symmetrically arranged on both sides of the shaping block.
[0013] Preferably, the bending seat is further provided with a stamping groove, and the bending punch is slidably arranged in the stamping groove.
[0014] Preferably, a limiting mechanism is also provided, the limiting mechanism is provided with a limiting pin and a limiting hole, the limiting hole is in the shape of an oblong hole, the limiting pin is slidably arranged in the limiting hole; the limiting pin is arranged on the bending seat, and the limiting hole is arranged on the bending punch.
[0015] Preferably, the shaping block is provided with a shaping groove, and the shaping groove is arranged right in front of the shaping protrusion.
[0016] The advantages of the utility model are as follows:
[0017] The needle is placed between the bending punch and the shaping block, the bending punch moves forward and approaches the shaping block, the needle abuts against the bending seat, the part of the needle to be bent is pressed between the bending punch and the shaping block, and the bending position can be accurately controlled; the bending punch continues to move forward, pushing the shaping block forward, the needle is gradually bent, the deformation of the buffer spring gradually increases, and the stress on the needle gradually increases, which ensures the shaping effect of the needle, prevents the needle from popping out from between the bending punch and the shaping block, and prevents the needle from being broken due to a sudden increase in stress;
[0018] The bending punch pushes the shaping block forward, the needle is gradually bent, and the pressing bolt gradually presses the needle against the positioning protrusion, so that the shape of the needle bending is the same as the shape of the shaping arc, thereby controlling the bending accuracy of the needle;
[0019] The limit mechanism controls the stroke of the bending punch, thereby controlling the forward movement of the shaping block, and accurately controlling the degree of needle bending. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained like these drawings without paying any creative labor.
[0021] Figure 1 is a schematic diagram of a needle bending device;
[0022] Figure 2 is a schematic diagram of a bending device for bending a needle.
[0023] Explanation of symbols in the figure:
[0024] 1 is a bending punch, 11 is a shaping protrusion, 111 is a shaping arc, and 12 is a connecting hole;
[0025] 2 is a bending seat, 21 is a shaping block, 211 is a shaping groove, 22 is a buffer mechanism, 221 is a buffer spring, 222 is a buffer seat, 23 is an orientation mechanism, 231 is an orientation groove, 232 is an orientation bolt, 233 is an orientation hole, 24 is a clamping mechanism, 241 is a clamping bolt, 2411 is a first clamping bolt, 2412 is a second clamping bolt, 242 is a clamping spring, 2421 is a first clamping spring, 2422 is a second clamping spring, 243 is a clamping groove, 2431 is a first clamping groove, 2432 is a second clamping groove, and 25 is a stamping groove;
[0026] 3 is a limiting mechanism, 31 is a limiting pin, and 32 is a limiting hole;
[0027] 4 is the needle. DETAILED DESCRIPTION
[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0029] The needle bending device provided in the embodiment of the present application is now described.
[0030] like Figure 1 and Figure 2 As shown, a needle bending device is provided with a bending punch 1 and a bending seat 2. The bending punch 1 is movably arranged on the bending seat 2. The bending seat 2 is provided with a shaping block 21 and a buffer mechanism 22. The buffer mechanism 22 is provided with a buffer spring 221 and a buffer seat 222. The buffer seat 222 is abutted against the buffer spring 221; the bending seat 2 is linked with the buffer seat 222; the front end of the bending punch 1 is provided with a shaping protrusion 11, and the shaping block 21 is arranged in front of the shaping protrusion 11.
[0031] The needle 4 is placed between the bending punch 1 and the shaping block 21, the bending punch 1 moves forward close to the shaping block 21, the needle 4 rests on the bending seat 2, and the part of the needle 4 to be bent is pressed between the bending punch 1 and the shaping block 21, so that the bending position can be accurately controlled; the bending punch 1 continues to move forward, pushing the shaping block 21 forward, the needle 4 is gradually bent, the deformation of the buffer spring 221 gradually increases, and the stress on the needle 4 gradually increases, which ensures the shaping effect on the needle 4, avoids the needle 4 from popping out from between the bending punch 1 and the shaping block 21, and also avoids the needle 4 from being broken due to the sudden increase in stress.
[0032] In this embodiment, a connecting hole 12 is further provided at the rear end of the bending punch 1, and a driving component such as a cylinder or an oil cylinder can be connected through the connecting hole 12 to drive the bending punch 1 to move, which is convenient to operate.
[0033] The bending seat 2 is further provided with an orientation mechanism 23 , and the orientation mechanism 23 is provided with an orientation groove 231 , and the buffer seat 222 is movably disposed in the orientation groove 231 .
[0034] The orientation mechanism 23 is further provided with an orientation bolt 232 and an orientation hole 233 . The orientation bolt 232 is movably disposed in the orientation hole 233 . The orientation hole 233 is disposed at the bottom of the orientation slot 231 . The buffer seat 222 is linked to the orientation bolt 232 .
[0035] In this embodiment, a spring seat is provided at the bottom of the directional groove 231 , and the buffer spring 221 is provided between the buffer seat 222 and the spring seat; the buffer spring 221 is sleeved outside the directional bolt 232 , which can support the buffer spring 221 and control the direction of the buffer spring 221 .
[0036] The bending seat 2 is also provided with a clamping mechanism 24, which is provided with a clamping bolt 241 and a clamping spring 242, and the clamping spring 242 is abutted against the rear end of the clamping bolt 241; the front end of the shaping protrusion 11 is provided with a shaping arc 111, and the clamping bolt 241 is arranged on the side of the shaping block 21, and the front end of the clamping bolt 241 points to the shaping arc 111.
[0037] The bending punch 1 pushes the shaping block 21 forward, the needle 4 is gradually bent, and the pressing bolt 241 gradually presses the needle 4 against the positioning protrusion 11, so that the bent shape of the needle 1 is the same as the shape of the shaping arc 111, thereby controlling the bending accuracy of the needle 4.
[0038] The pressing mechanism 24 is further provided with a pressing groove 243 , in which a pressing bolt 241 is movably disposed, and a pressing spring 242 is disposed between the pressing bolt 241 and the pressing groove 243 .
[0039] The clamping bolt 241 is provided with a first clamping bolt 2411 and a second clamping bolt 2412, the clamping spring 242 is provided with a first clamping spring 2421 and a second clamping spring 2422, and the clamping groove 243 is provided with a first clamping groove 2431 and a second clamping groove 2432; the first clamping bolt 2411 and the first clamping spring 2421 are arranged in the first clamping groove 2431, and the second clamping bolt 2412 and the second clamping spring 2422 are arranged in the second clamping groove 2432; the first clamping bolt 2411 and the second clamping bolt 2412 are symmetrically arranged on both sides of the shaping block 21.
[0040] The bending seat 2 is further provided with a punching groove 25 , and the bending punch 1 is slidably arranged in the punching groove 25 .
[0041] A limiting mechanism 3 is also provided, which is provided with a limiting pin 31 and a limiting hole 32. The limiting hole 32 is in the shape of an oblong hole, and the limiting pin 31 is slidably arranged in the limiting hole 32; the limiting pin 31 is arranged on the bending seat 2, and the limiting hole 32 is arranged on the bending punch 1.
[0042] The limiting mechanism 3 controls the stroke of the bending punch 1, thereby controlling the forward movement stroke of the shaping block 21, and accurately controlling the bending degree of the needle 1.
[0043] The shaping block 21 is provided with a shaping groove 211, which is arranged just in front of the shaping protrusion 11. The shape of the shaping groove 211 is adapted to the shape of the front end of the bending punch 1. When bending, the contact area between the needle 4 and the shaping protrusion 11 is increased, further preventing the needle 4 from sliding between the bending punch 1 and the shaping block 21, so that the bending shape of the needle 4 is the same as the shape of the shaping arc 111, thereby ensuring the shaping effect of the needle 4.
[0044] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims
1. A needle bending device, comprising a bending punch and a bending seat, wherein the bending punch is movably arranged on the bending seat, and characterized in that: The bending seat is provided with a shaping block and a buffer mechanism, the buffer mechanism is provided with a buffer spring and a buffer seat, and the buffer seat is abutted against the buffer spring; the bending seat is linked with the buffer seat; the front end of the bending punch is provided with a shaping protrusion, and the shaping block is arranged in front of the shaping protrusion.
2. The needle bending device according to claim 1, characterized in that: The bending seat is also provided with an orientation mechanism, the orientation mechanism is provided with an orientation groove, and the buffer seat is movably arranged in the orientation groove.
3. The needle bending device according to claim 2, characterized in that: The orientation mechanism is further provided with an orientation bolt and an orientation hole, wherein the orientation bolt is movably arranged in the orientation hole; the orientation hole is arranged at the bottom of the orientation groove, and the buffer seat is linked with the orientation bolt.
4. The needle bending device according to claim 3, characterized in that: The buffer spring is arranged between the buffer seat and the directional groove, and the buffer spring is sleeved outside the directional bolt.
5. The needle bending device according to any one of claims 1 to 4, characterized in that: The bending seat is also provided with a clamping mechanism, which is provided with a clamping bolt and a clamping spring, and the clamping spring is abutted against the rear end of the clamping bolt; the front end of the shaping protrusion is provided with a shaping arc, and the clamping bolt is arranged on the side of the shaping block, and the front end of the clamping bolt points to the shaping arc.
6. The needle bending device according to claim 5, characterized in that: The clamping mechanism is further provided with a clamping groove, the clamping bolt is movably arranged in the clamping groove, and the clamping spring is arranged between the clamping bolt and the clamping groove.
7. The needle bending device according to claim 6, characterized in that: The clamping bolt is provided with a first clamping bolt and a second clamping bolt, the clamping spring is provided with a first clamping spring and a second clamping spring, and the clamping groove is provided with a first clamping groove and a second clamping groove; the first clamping bolt and the first clamping spring are arranged in the first clamping groove, and the second clamping bolt and the second clamping spring are arranged in the second clamping groove; the first clamping bolt and the second clamping bolt are symmetrically arranged on both sides of the shaping block.
8. The needle bending device according to any one of claims 1 to 4, characterized in that: The bending seat is also provided with a stamping groove, and the bending punch is slidably arranged in the stamping groove.
9. The needle bending device according to claim 8, characterized in that: A limiting mechanism is also provided, which is provided with a limiting pin and a limiting hole. The limiting hole is in the shape of an oblong hole, and the limiting pin is slidably arranged in the limiting hole; the limiting pin is arranged on the bending seat, and the limiting hole is arranged on the bending punch.
10. The needle bending device according to any one of claims 1 to 4, characterized in that: The shaping block is provided with a shaping groove, and the shaping groove is arranged right in front of the shaping protrusion.