CN-114770301-B - Needle tube sharpening clamping mechanism

CN114770301BCN 114770301 BCN114770301 BCN 114770301BCN-114770301-B

Abstract

The invention discloses a needle tube sharpening clamping mechanism, which relates to the technical field of needle tube sharpening and comprises a clamp which can be opened and closed and is used for clamping the lower half part of a needle tube, a top plate which is used for propping against the upper half part of the needle tube, a driving device which is used for driving the top plate to move, and a control device, wherein the clamp and the driving device are connected with the control device. The needle tube sharpening clamping mechanism provided by the invention can be used for rapidly and conveniently taking out the needle tube after the needle tip of the stainless steel needle tube is sharpened.

Inventors

YU CHUNCHI
JIANG LEI
YAO PENGCHENG
YU JINGHUA
LIU GAOWEI
TAN XIANCHENG

Assignees

威海洁瑞医用制品有限公司

Dates

Publication Date: 20260508
Application Date: 20220527

Claims (6)

1. Needle tubing sharpening fixture, characterized by, include: a clamp (1) which can be opened and closed and is used for clamping the lower half part of the needle tube (8); a top plate (2) for pushing against the upper half of the needle tube (8); -a driving device (3) for driving the movement of the top plate (2); the control device is connected with the clamp (1) and the driving device (3); the moving end of the driving device (3) is directly connected with the top plate (2), or the moving end of the driving device (3) is indirectly connected with the top plate (2); The driving device (3) comprises a driving piece and a rotating mechanism (4) which are used for carrying out reciprocating motion, the rotating mechanism (4) is rotationally arranged on a frame (9), the moving end of the driving piece is connected with the rotating mechanism (4), the top plate (2) is connected with the rotating mechanism (4), or the driving device (3) comprises at least two driving pieces, the rotating mechanism (4) and a synchronizing component (7) which are used for carrying out reciprocating motion, the rotating mechanism (4) is rotationally arranged on the frame (9), the moving end of the driving piece is connected with the rotating mechanism (4), the top plate (2) is connected with the rotating mechanism (4), and the tops of a plurality of the rotating mechanisms (4) are all connected with the synchronizing component (7); Firstly, the control device controls the clamp (1) to be opened so as to put the lower half part of the needle tube (8) into the clamp (1), then, the control device controls the clamp (1) to be closed so as to clamp the lower half part of the needle tube (8), then, the control device controls the driving device (3) to operate so as to drive the top plate (2) to be close to the upper half part of the needle tube (8), the top plate (2) and the clamp (1) are matched to clamp the needle tube (8), then, the sharpening operation is carried out on the needle tube (8) by utilizing the sharpening equipment, after the needle tip of the needle tube (8) is polished, the control device controls the driving device (3) to reversely move so as to enable the top plate (2) to be far away from the needle tip, and finally, the control device controls the clamping piece to operate so as to clamp the upper half part of the needle tube (8) and transfer the needle tube (8).
2. A sharpening fixture for needle tubes as claimed in claim 1, wherein the driving means (3) comprises a driving member for reciprocating movement and a holder for holding the driving member, the driving member being positioned at a non-level with the top plate (2), the moving end of the driving member and the top plate (2) being connected by an L-shaped connecting plate.
3. A sharpening gripping mechanism as defined in claim 1, wherein said driving means (3) comprises a driving member for reciprocating movement, the moving end of said driving member being connected to the central portion of said top plate (2); or the driving device (3) comprises at least two driving pieces for reciprocating motion, the moving ends of the driving pieces are connected with the top plate (2), and a plurality of driving pieces are symmetrically distributed by taking the middle part of the top plate (2) as the center.
4. A sharpening clamping mechanism as defined in claim 1, wherein the rotation mechanism (4) is vertically provided with a positioning pin (6), the positioning pin (6) being adapted to abut against the top plate (2) to determine the position of the top plate (2).
5. The sharpening gripping mechanism of claim 1 wherein the drive member is a push-pull cylinder that is pushed outwardly and pulled back inwardly; Or the driving member comprises a first cylinder (31) for pushing out and a second cylinder (32) for pulling back in.
6. A sharpening clamping mechanism for a needle cannula according to any of the claims 1 to 5, characterized in that the clamp (1) comprises two oppositely arranged clamping plates and a moving part for driving the clamping plates to move, said moving part being connected to the control device.

Description

Needle tube sharpening clamping mechanism Technical Field The invention relates to the technical field of needle tube polishing, in particular to a needle tube sharpening clamping mechanism. Background In the prior art, the clamping and loosening of the needle tube 01 made of the stainless steel material is generally realized through the clamping and moving operations of the sharpening clamping mechanism, so that after the needle tip of the needle tube 01 made of the stainless steel material is sharpened, the needle tip is taken out, and other subsequent processes are further executed. At present, before sharpening a fine needle or a short needle, a lower half part of the needle tube 01 needs to be clamped by a clamp 02, a space is reserved above the needle tube 01 so as to facilitate sharpening, one side above the needle tube 01 is abutted against a fixed top plate 03, and the other side above the needle tube 01 can be contacted with a sharpening device to carry out grinding operation. Because the upper part of the needle tube 01 is abutted against the fixed top plate 03, the top plate 03 cannot move, so that a sufficient space is not available for taking out the sharpened needle tube 01, and the subsequent operation of the sharpened needle tube 01 is inconvenient. In summary, how to quickly and conveniently take out the needle tip after grinding the needle tip of the stainless steel needle tube is a problem to be solved by those skilled in the art. Disclosure of Invention Therefore, the invention aims to provide the needle tube sharpening clamping mechanism which can rapidly and conveniently take out the needle tube after the needle tip of the stainless steel needle tube is sharpened. In order to achieve the above object, the present invention provides the following technical solutions: A needle sharpening fixture comprising: a clamp which can be opened and closed and is used for clamping the lower half part of the needle tube; A top plate for abutting against the upper half of the needle tube; a driving device for driving the top plate to move; and the control device is connected with the clamp and the driving device. Preferably, the moving end of the driving device and the top plate are directly connected. Preferably, the driving device comprises a driving piece for reciprocating movement, and the moving end of the driving piece is connected with the middle part of the top plate; or the driving device comprises at least two driving pieces for reciprocating motion, the moving ends of the driving pieces are connected with the top plate, and the driving pieces are symmetrically distributed by taking the middle part of the top plate as the center. Preferably, the moving end of the driving device is indirectly connected with the top plate. Preferably, the driving device comprises a driving member for performing reciprocating motion and a rotating mechanism, the rotating mechanism is rotatably arranged on the frame, the moving end of the driving member is connected with the rotating mechanism, and the top plate is connected with the rotating mechanism. Preferably, the rotating mechanism is vertically provided with a positioning pin, and the positioning pin is used for propping against the top plate to determine the position of the top plate. Preferably, the driving device comprises at least two driving pieces for reciprocating motion, a rotating mechanism and a synchronizing component, the rotating mechanism is rotationally arranged on the frame, the moving end of the driving piece is connected with the rotating mechanism, the top plate is connected with the rotating mechanism, and the tops of a plurality of rotating mechanisms are connected with the synchronizing component. Preferably, the driving piece is a push-pull cylinder capable of being pushed out outwards and pulled back inwards; or the driving member includes a first cylinder for pushing out and a second cylinder for pulling back in. Preferably, the driving device comprises a driving piece for performing reciprocating motion and a bracket for supporting the driving piece, the position of the driving piece is not flush with the position of the top plate, and the moving end of the driving piece is connected with the top plate through an L-shaped connecting plate. Preferably, the clamp comprises two clamping plates which are arranged oppositely and a moving part for driving the clamping plates to move, and the moving part is connected with the control device. When the needle tube sharpening clamping mechanism provided by the invention is used, firstly, the control device can control the clamp to be opened so as to put the lower half part of the needle tube into the clamp. Then, the control device controls the clamp to be closed so as to effectively clamp the lower half part of the needle tube. Then, the control device controls the driving device to operate so as to drive the top plate to be close to the upper half part of the needle tube, and the top p