A kind of processing method of high precision U-shaped titanium nail

A processing method and high-precision technology, applied in the field of processing and manufacturing, can solve the problems that the straightness of the titanium wire body cannot be guaranteed, the angle consistency cannot be accurately guaranteed, and the guiding performance of the wire foot will be affected, so as to achieve good appearance quality and sharp The effect of high angle consistency and no scratches

Active Publication Date: 2020-11-13
上海亚尔精密零件制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing processing technology has the following disadvantages: 1, the two-way molding process, the process is complicated
2. High material loss, more than 25%
3. This forming method cannot guarantee the straightness of the titanium wire body and the two wire feet, and there is a certain inclination, which will affect the guiding performance of the wire feet
4. The edging process of the angle of the silk foot, the angle consistency cannot be guaranteed accurately, and there will be defects such as long and short angles, sharp angle differences, etc., which seriously affect the puncture performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The molding process of the U-shaped titanium nail of the present invention is manufactured by a one-shot molding method. The manufacturing method of the present invention will be briefly described below by taking a 4.5mm titanium nail as an example.

[0028] Use 0.022 titanium wire, send the titanium wire coil material into the straightening mechanism, send the titanium wire material into the straightening mechanism, the straightening speed is 2880 rpm, the wire receiving speed is 6.5 circles / min, and the wire discharge speed is 2.5 circles per minute. Replace the receiving reel every 1 hour, and the straightening row will bear the same force of 8.9N. Attention: the titanium wire material is soft and the wire diameter is thin. When feeding the wire, the pulling force must be controlled, and the speed of the wire feeding row and the wire receiving row must be kept in a certain state of balance so that it can rotate smoothly without uneven force. The wire is broken durin...

Embodiment 2

[0032] A processing method of high-precision U-shaped titanium nails, comprising the following steps:

[0033] (1) The straightening mechanism is obtained by making cork material;

[0034] (2) Send the titanium wire into the straightening mechanism, control the speed of the straightening row in the straightening mechanism at 2800 rpm, the wire discharge speed is 2 turns per minute, and control the winding speed of the winding mechanism to be 6 turns / minute. The straightening row of the straightening mechanism bears the same force of 8N when receiving the wire;

[0035] (3) Feed the titanium wire collected by the wire-receiving mechanism into the cutter mold, the mold core and the cutter are in a close contact state, and the angle between the mold core and the cutter is controlled to 45°. After the forming mechanism is pressed down, the pressure The spring and the pre-pressing block compress the titanium wire, and then the double cutters on both sides act at the same time to c...

Embodiment 3

[0038] A processing method of high-precision U-shaped titanium nails, comprising the following steps:

[0039] (1) The straightening mechanism is obtained by making cork material;

[0040] (2) Send the titanium wire into the straightening mechanism, control the speed of the straightening row in the straightening mechanism at 3200 rpm, the wire discharge speed is 3.5 turns per minute, and control the winding speed of the winding mechanism to 7 turns per minute. The straightening row of the straightening mechanism bears the same force of 10N when receiving the wire;

[0041] (3) Feed the titanium wire collected by the wire-receiving mechanism into the cutter mold, the mold core and the cutter are in a state of close contact, and the angle between the mold core and the cutter is controlled to 60°. After the forming mechanism is pressed down, the pressure The spring and the pre-pressing block compress the titanium wire, and then the double cutters on both sides act at the same ti...

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PUM

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Abstract

The invention relates to a processing method for a high-precision U-shaped titanium nail. The method comprises the following steps that a straightening mechanism is manufactured by utilizing cork materials; titanium wires are conveyed in the straightening mechanism, the rotating speed of a straightening raw is controlled to be 2800-3200 revolutions / min, the wire discharging speed is 2-3.5 circles / min, the wire winding speed of a wire winding mechanism is controlled to be 6-7circles / min for wire winding; and the titanium wires wound by the wire winding mechanism are convoyed into a cutter die,a die core is attached to cutters, after a forming mechanism presses down, a pressure spring and a pre-pressing block press the titanium wires tightly, then double cutters on the two sides act to cuttitanium wires on the two sides of the cutter die at the same time, the titanium wires are bent and formed, and a titanium nail with a U-shaped structure is formed. Compared with the prior art, the process of one-time punching forming has the advantages that the process is greatly simplified, the production efficiency is improved, and the processing mode is unique, so that products are greatly improved in terms of quality, performance and processing flexibility.

Description

technical field [0001] The invention relates to the field of processing and manufacturing, in particular to a processing method of a high-precision U-shaped titanium nail. Background technique [0002] Medical titanium nails, disposable consumable products, are used in medical staplers to replace traditional manual suture products in medicine. The product material is titanium, and the main structure is U-shaped. [0003] When the existing U-shaped titanium nails are produced and processed, the spring winding method is used to form the four sides first, and then the mechanical edging process is used to make the U-shaped and silk feet of the titanium nails. However, the existing processing technology has the following disadvantages: 1. The two-way molding process has complicated procedures. 2. High material loss, more than 25%. 3. This forming method cannot guarantee the straightness of the titanium wire body and the two wire feet, and there is a certain inclination, which ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21F45/24
CPCB21F45/24
Inventor 盛誉陆磊何健荣
Owner 上海亚尔精密零件制造有限公司
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