Remaining needle safety elastic clamp torsion forming die
By applying a remote and staggered force to the clamping arm of the safety elastic clamp in the rotary assembly and the torsion molding assembly, the problem of high cost and low efficiency of the indwelling needle safety elastic clamp twisting molding process in the prior art is solved, and a low cost and high efficiency processing effect is achieved.
Patent Information
- Application Number
- CN202422512986.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-17
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-10-17
AI Technical Summary
The existing torsion forming process of the indwelling needle safety elastic clamp has problems of high processing costs and low efficiency.
Using a rotating assembly and a torsion forming assembly, the twisting forming of the clamping arm of the safety elastic clamp is applied to the clamping arm of the safety elastic clamp during rotation, and the torsion rod is used to telescope in the space between the safety elastic clamp plane section and the clamping arm to achieve twisting forming of the clamping arm.
The low-cost and high-efficiency molding of safe elastic clamps is achieved, which reduces the impact of processing errors and improves processing effect and efficiency.
Smart Images
Figure CN223197822U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of needle safety protection, in particular to a twisting forming die for a safety elastic clip of an indwelling needle. Background Art
[0002] An indwelling needle is a special medical needle that can reduce repeated vein penetration. The indwelling needle safety elastic clip is a needle tip protection device that can effectively prevent medical staff from needlestick injuries and avoid blood-borne infections.
[0003] Currently, see Figure 2 There is a low-cost safety elastic clamp on the market, which includes a flat section and left and right clamping arms. Figure 3 The flat section above the safety elastic clip has a through hole for the needle to pass through to prevent the needle from swinging. The safety elastic clip then protects the needle tip by clamping it between the overlapping parts of the clamping arms below the safety elastic clip. The main processing steps of this product include cutting (trimming), bending and preforming (see Figure 1 Preformed products) and twist forming (see Figure 2 For pre-forming products), cutting (trimming) and bending are conventional processing technologies. For torque forming, the industry's conventional practice includes pressing the left side of the product after bending, clamping the lower end of the right side of the product after bending with a clamp, lifting, moving, and loosening the product so that the left and right sides of the product are overlapped and formed.
[0004] This application is based on the improvement of the existing torque forming process mold, which reduces the processing cost and improves the processing efficiency. Utility Model Content
[0005] The purpose of the utility model is to provide a twisting forming die for a safety elastic clip of an indwelling needle, so as to solve the problems raised in the above background technology.
[0006] To achieve the above-mentioned purpose, the present invention adopts a technical solution: a torsion forming mold for a safety elastic clip of an indwelling needle, comprising a rotating component, a torsion forming component arranged on the rotating component and rotating therewith, and a fixing tool for fixing the plane segment of the safety elastic clip. During the rotation process, the torsion forming component can apply a force to at least one clamping arm of the safety elastic clip so that the two clamping arms move away from each other in the width direction of the safety elastic clip and staggered with each other in the length direction.
[0007] Preferably, the torsion forming assembly includes a telescopic assembly and a torsion rod placed at the output end of the telescopic assembly, the fixed tooling is located within the circular area of the rotational forming of the rotating assembly, and the end of the torsion rod can extend into the space formed between the safety elastic clamping plane section and the two clamping arms under the drive of the telescopic assembly.
[0008] Preferably, the direction of the torsion rod extension process is toward the center of the circular area rotationally formed by the rotating component.
[0009] Preferably, it further comprises a conveyor belt, and a plurality of the fixed toolings are provided and distributed in an array on the conveyor belt.
[0010] Preferably, the angle between the length direction of the safety elastic clip on the material strip and the travel direction of the torsion bar is an acute angle in the direction in which the safety elastic clip is formed.
[0011] Preferably, when the torsion rod extends into the space formed between the plane section of the safety elastic clamp and the two clamping arms, the minimum distance between the torsion rod and the safety elastic clamp is greater than 0.5 mm.
[0012] The beneficial effects of the utility model are as follows: the present invention realizes the twisting of at least one clamping arm of the safety elastic member by driving the torque forming assembly during the rotation of the rotating assembly, thereby completing the molding of the product. The product has a simple structure and is characterized by low cost and high efficiency.
[0013] The angle between the length direction of the safety elastic clip on the material strip and the travel direction of the torsion bar is set to an acute angle in the direction of the safety elastic clip forming, so that the rotating assembly can be rotated slightly to achieve the torsional overlap between the two clamping arms of the safety elastic clip;
[0014] By setting the minimum distance between the torsion bar and the safety elastic clamp, the influence of the fixing tooling error can be reduced, thereby ensuring the processing effect and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of a preformed product;
[0016] Figure 2 It is a schematic diagram of the formed product;
[0017] Figure 3 It is a schematic diagram of the product in use;
[0018] Figure 4 It is a structural diagram of the utility model;
[0019] Figure 5 It is a front schematic diagram of the utility model;
[0020] Figure 6 This is a schematic diagram of the positional relationship between the material strip and the safety elastic clip;
[0021] In the figure: 1. Plane section; 2. Clamping arm; 3. Needle; 4. Rotating assembly; 5. Twist-forming assembly; 6. Twist rod; 7. Material strip; 8. Safety elastic clip. DETAILED DESCRIPTION
[0022] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.
[0023] Example:
[0024] See Figure 1-3 The product in this scheme is suitable for the twisted and formed safety elastic clip as described in the figure, which includes a plane segment and two clamping arms. The width direction of the safety elastic clip hereinafter refers to the direction of the fold line formed at the bend of the plane segment and the two clamping arms, and the length direction of the safety elastic clip is the direction perpendicular to the two parallel fold lines on the plane segment.
[0025] See Figure 5-6 A torsion forming mold for a safety elastic clip of an indwelling needle includes a rotating component, a torsion forming component arranged on the rotating component and rotating therewith, and a fixing tool for fixing the plane segment of the safety elastic clip. During the rotation process, the torsion forming component can apply a force to at least one clamping arm of the safety elastic clip so that the two clamping arms move away from each other in the width direction of the safety elastic clip and staggered with each other in the length direction.
[0026] The fixing fixture may be merely a groove capable of accommodating the safety elastic clamping plane segment and supporting part of the clamping arm, or a structure with a clamping function capable of fixing the safety elastic clamping plane segment on a plane.
[0027] In which, the torsion forming component includes a telescopic component and a torsion rod placed at the output end of the telescopic component, the fixed tooling is located in the circular area of the rotational forming of the rotating component, and the end of the torsion rod can extend from the space formed between the safety elastic clamping plane section and the two clamping arms under the drive of the telescopic component, wherein, the rotating component can be a rotary cylinder, the telescopic component can be a linear cylinder, and the torsion rod is a long rod fixed to the output section of the telescopic component, and its cross-section is optimally circular.
[0028] The direction of the torsion rod extending process is toward the center of the circular area rotated by the rotating component.
[0029] Among them, it also includes a conveyor belt, and the fixed tooling is provided with a plurality of them and the array is distributed on the conveyor belt. The preferred setting position of the belt is as follows Figure 4 The illustrated arrangement is through the axis of rotation of the rotating assembly, in which case the optimal telescopic direction of the torsion bar is also arranged through the axis of rotation of the rotating assembly.
[0030] Wherein, the angle between the length direction of the safety elastic clip on the material strip and the travel direction of the torsion bar is an acute angle in the direction in which the safety elastic clip is formed.
[0031] Wherein, when the torsion rod extends into the space formed between the plane section of the safety elastic clamp and the two clamping arms, the minimum distance between the torsion rod and the safety elastic clamp is greater than 0.5 mm.
[0032] Working principle and process:
[0033] When using this product, the material belt runs so that the preformed safety elastic clip on it is placed in the position where it should be processed. Then, the telescopic assembly drives the torsion rod to extend into the space formed between the plane section of the safety elastic clamp and the two clamping arms. Then, the rotating assembly rotates so that the torsion rod collides with the two clamping arms. As the rotation angle increases, the two clamping arms move toward each other along the length direction of the torsion rod until a staggered state in space is formed. Then, the telescopic assembly controls the torsion rod to retract, and the two clamping arms are overlapped and formed. Then, the rotary cylinder resets and waits for the next material to be processed.
[0034] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, is also included in the patent protection scope of the present invention.
Claims
1. A twisting forming die for a safety elastic clip of an indwelling needle, characterized by: It includes a rotating component, a torsion forming component arranged on the rotating component and rotating therewith, and a fixing tool for fixing the plane section of the safety elastic clamp. During the rotation process, the torsion forming component can apply a force to at least one clamping arm of the safety elastic clamp so that the two clamping arms move away from each other in the width direction of the safety elastic clamp and staggered with each other in the length direction.
2. The twisting forming mold for the safety elastic clip of an indwelling needle according to claim 1, characterized in that: The torsion forming assembly includes a telescopic assembly and a torsion rod placed at the output end of the telescopic assembly. The fixed tooling is located in the circular area of the rotational forming of the rotating assembly. The end of the torsion rod can extend from the space formed between the safety elastic clamping plane section and the two clamping arms under the drive of the telescopic assembly. When the rotating assembly rotates, the extended torsion rod can contact the two clamping arms at the same time.
3. The twisting forming mold for the safety elastic clip of an indwelling needle according to claim 2, characterized in that: The direction of the torsion rod extending process is toward the center of the circular area rotationally formed by the rotating component.
4. The twisting forming mold for the safety elastic clip of an indwelling needle according to claim 3, characterized in that: It also includes a conveyor belt, and a plurality of the fixed toolings are provided and distributed in an array on the conveyor belt.
5. The twisting forming mold for the safety elastic clip of an indwelling needle according to claim 4, characterized in that: The angle between the length direction of the safety elastic clip on the material strip and the travel direction of the torsion bar is an acute angle in the direction in which the safety elastic clip is formed.
6. The twisting forming mold for the safety elastic clip of an indwelling needle according to claim 5, characterized in that: When the torsion rod extends into the space formed between the plane section of the safety elastic clamp and the two clamping arms, the minimum distance between the torsion rod and the safety elastic clamp is greater than 0.5 mm.