Opening needle manufacturing method

Abstract

The invention discloses a method for manufacturing an open needle. The problems that an existing fine 304 stainless steel wire is low in welding strength and low in production efficiency when a traditional brazing method is adopted are solved. The method comprises the four steps of plate swinging of the stainless steel wire, cutting of the stainless steel wire, welding of the opening needle and cleaning treatment of the opening needle. The opening needle welding process is simple in structure and convenient to operate, the opening needle manufactured through the process has the advantages of being high in welding quality, better in elasticity, durable in use, high in quality and low in price, a plurality of products can be welded at the same time, the time of single-time welding is shortened, and the overall production efficiency is improved; the consistency of the welding quality is high, and the stability and the reliability of products are good; stainless steel wires are uniformly welded, so that frequent start and stop of equipment can be reduced, and energy consumption is reduced; and the stainless steel wires are uniformly and intensively placed through the acrylic template, so that the stainless steel wires are convenient to manage.

Description

Technical Field

[0001] The present application relates to the technical field of daily necessities, and in particular to a method for manufacturing an open needle. Background Art

[0002] Beading needle, an open needle used for hand-made beaded jewelry, is welded by 304 stainless steel wire with a diameter of 0.25mm.

[0003] However, there are two main welding methods for fine 304 stainless steel wire:

[0004] (1) Soldering is used for welding, but the welding strength of this method is not enough, it is easy to crack, and it cannot meet the requirements of product use;

[0005] (2) The brazing process using copper-based brazing material mainly involves heating the steel wire first, then bringing the solder into contact with the heated portion of the steel wire and continuing to heat it until the solder melts. The molten solder fills the gaps between the steel wires and wraps around the welding ends of the steel wires to perform welding. This operation is cumbersome and has low production efficiency. If the solder model and composition are not selected correctly, the welding strength will be insufficient and the welding will easily break, which cannot meet the product use requirements.

[0006] At the same time, the use of traditional welding technology also has the problem of low production efficiency. Summary of the invention

[0007] To this end, the present application provides a method for manufacturing an open needle to solve the problems of low welding strength and low production efficiency of the existing fine 304 stainless steel wire using traditional brazing methods.

[0008] In order to achieve the above objectives, this application provides the following technical solutions:

[0009] A method for manufacturing an open needle, the method comprising the following steps:

[0010] Step 1: a swing plate for stainless steel wires; placing multiple groups of stainless steel wires on the template of the acrylic mold, and arranging them in sequence along the length direction of the template, each group of stainless steel wires includes multiple pairs of stainless steel wires, and each pair of the stainless steel wires is horizontally distributed; a layer of adhesive tape is provided on the upper part of the multiple groups of stainless steel wires, and the multiple groups of stainless steel wires are bonded together as a whole by the adhesive tape; placing the multiple groups of stainless steel wires with the adhesive tape as a whole on the transfer plate of the acrylic mold;

[0011] Step 2, cutting the stainless steel wires; when the transfer plate is filled with the stainless steel wires, the tape between each adjacent group of stainless steel wires is cut by a cutting knife, thereby separating the multiple groups of stainless steel wires one by one;

[0012] Step 3, welding of the open needle: clamp a group of stainless steel wires with a clamping tool, and immerse one end of the group of stainless steel wires into a copper-based silver solder melted at a set temperature for dip soldering, take out after immersion for a specific time, and weld the other end of the group of stainless steel wires with the same process; repeat the welding steps of the group of stainless steel wires, and complete the welding of other groups of stainless steel wires in sequence;

[0013] Step 4: Clean the opening needles; tear off the sticky tape on each group of opening needles after welding, and use stainless steel weld spot cleaning fluid to clean each opening needle; then use abrasives with grinding fluid and polishing fluid to grind and polish for one hour, so that the solder points of the opening needles are polished to bright and silver, and then cleaned.

[0014] Optionally, the plurality of groups of stainless steel wires include 5-15 groups;

[0015] Each set of stainless steel wires includes 5 or 6 pairs of stainless steel wires.

[0016] Optionally, the acrylic mold includes the template, the transfer plate, a bottom plate, and an upper support plate and a lower support plate placed on the bottom plate, and the transfer plate is used to place the multiple groups of stainless steel wires bonded by the adhesive tape;

[0017] The bottom plate is provided with a first placement groove for placing the template along the length direction, and the template is provided with a plurality of second placement grooves arranged in sequence along the length direction. The plurality of second placement grooves are used to place a plurality of pairs of stainless steel wires in a one-to-one correspondence. The upper support plate and the lower support plate are placed along the width direction of the bottom plate, and a plurality of groups of stainless steel wires are located between the upper support plate and the lower support plate; each pair of the stainless steel wires is placed horizontally and one-to-one in the second placement groove.

[0018] Optionally, the transfer plate is a transparent acrylic plate.

[0019] Optionally, the upper backing plate and the lower backing plate are respectively clamped with a first elastic rubber band and a second elastic rubber band;

[0020] The bottom plate is symmetrically provided with two groups of upper and lower slots on the left and right sides along the length direction, and the two groups of slots are respectively located at the upper support plate and the lower support plate. The two ends of the first elastic rubber band are respectively connected to a pair of slots of the upper support plate, and the two ends of the second elastic rubber band are respectively connected to a pair of slots of the lower support plate.

[0021] Optionally, step 1 is specifically divided into the following steps:

[0022] 1) placing the template in the first placement groove on the bottom plate;

[0023] 2) placing multiple pairs of stainless steel wires in a one-to-one correspondence in the second placement grooves on the template;

[0024] 3) The upper supporting plate placed on the upper part of the bottom plate is moved downward, and the lower supporting plate placed on the lower part of the bottom plate is moved upward, and the upper ends and lower ends of the multiple groups of stainless steel wires are aligned by the upper supporting plate and the lower supporting plate;

[0025] 4) Adhere the adhesive tape to the upper part of the multiple groups of stainless steel wires along the length direction of the template, and the multiple groups of stainless steel wires will be bonded to the adhesive tape as a whole;

[0026] 5) Tear off the adhesive tape on the template, and then transfer the multiple groups of stainless steel wires to the transfer plate as a whole.

[0027] Optionally, the diameter of the stainless steel wire is 0.25 mm;

[0028] The dimensions of the bottom plate are: length 180mm-200mm, width 150mm-200mm;

[0029] The dimensions of the template are: length 150mm-180mm, width 40mm;

[0030] The distance between each adjacent set of stainless steel wires is 4-6mm;

[0031] The width of the second placement groove is 0.5 mm, the depth of the second placement groove is 0.15-0.25 mm, and the distance between adjacent second placement grooves is 1.25-2 mm.

[0032] Optionally, in step 3, the copper-based silver solder is melted by heating a graphite crucible with a 220V high-frequency induction heater, and after the copper-based silver solder is melted at a set temperature, the open pin is welded;

[0033] The set temperature is 800-1000° C., the specific time is 3-5 seconds, and the immersion depth of the stainless steel wire is 5-10 mm.

[0034] Optionally, in step 4, the open needle after grinding and polishing is immersed in silver protection liquid for 3-5 minutes for anti-oxidation treatment, and after the anti-oxidation treatment is completed, it is cleaned and finally dried with a hair dryer.

[0035] Compared with the prior art, this application has at least the following beneficial effects:

[0036] 1. Based on further analysis and research on the existing technical problems, the present application provides a method for making an open needle, which mainly includes four steps: a swing plate of stainless steel wire, cutting of stainless steel wire, welding of open needle and cleaning of open needle; the present application has a simple structure and is easy to operate. The open needle made by this process has the advantages of high welding quality, better elasticity, durability and good quality and low price. It can weld multiple products at the same time, reducing the time of a single welding, improving the overall production efficiency, avoiding the steps of frequently changing welding objects and repeatedly setting welding parameters, saving time and labor; the welding quality is highly consistent, and the product has good stability and reliability; the uniform welding of stainless steel wire can also reduce the frequent start and stop of equipment and reduce energy consumption; the stainless steel wire is uniformly and centrally placed through the acrylic template, which is also convenient for the management of the stainless steel wire;

[0037] 2. The open needle after grinding and polishing is then soaked in silver protection liquid for 3-5 minutes for anti-oxidation treatment. After the anti-oxidation treatment is completed, it is cleaned and finally dried with a hair dryer;

[0038] 3. The upper support plate and the lower support plate of the present application are respectively clamped with the first elastic rubber band and the second elastic rubber band, and the upper and lower groups of slots arranged on the bottom plate include multiple pairs of slots that are symmetrical on the left and right, which can adjust the positions of the upper support plate and the lower support plate to be suitable for stainless steel wires of different lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more intuitively illustrate the prior art and the present application, exemplary drawings are given below. It should be understood that the specific shapes and structures shown in the drawings should not generally be regarded as limiting conditions for implementing the present application; for example, those skilled in the art are capable of easily making conventional adjustments or further optimizations to the addition / reduction / attribution division, specific shapes, positional relationships, connection methods, dimensional ratios, etc. of certain units (components) based on the technical concepts and exemplary drawings disclosed in the present application.

[0040] Figure 1 Schematic diagram of the structure of an acrylic mold provided in one embodiment of the present application Figure 1 ;

[0041] Figure 2 for Figure 1 The top view shown;

[0042] Figure 3 for Figure 1 The partial schematic diagram shown;

[0043] Figure 4 Schematic diagram of the structure of an acrylic mold provided in one embodiment of the present application Figure 2 .

[0044] Description of reference numerals:

[0045] 1. Acrylic mold; 11. Bottom plate; 111. Card slot; 12. Template; 121. Second placement slot; 13. Upper support plate; 14. Lower support plate; 15. Adhesive tape; 16. Transfer plate; 17. First elastic rubber band; 18. Second elastic rubber band;

[0046] 2. Stainless steel wire. DETAILED DESCRIPTION

[0047] The present application is further described below in detail through specific embodiments in conjunction with the accompanying drawings.

[0048] In the description of this application: unless otherwise specified, the meaning of "plurality" is two or more. The terms "first", "second", "third", etc. in this application are intended to distinguish the objects referred to, and do not have special meanings in terms of technical connotations (for example, they should not be understood as emphasizing the importance or order, etc.). Expressions such as "including", "comprising", "having", etc. also mean "not limited to" (certain units, components, materials, steps, etc.).

[0049] The terms such as "upper", "lower", "left", "right", "middle", etc. cited in this application are usually used to indicate the general relative position relationship for the purpose of intuitive understanding by referring to the drawings, and are not absolute limitations on the position relationship in the actual product.

[0050] One embodiment of the present application is a method for making an open needle, such as Figure 1-Figure 4 As shown, the open needle is a 304 stainless steel wire with a diameter of 0.25 mm, which is a beaded needle. The manufacturing method includes the following steps:

[0051] Step 1, swing plate of stainless steel wire; swing plate stainless steel wire through acrylic mold 1, specifically: place multiple groups of stainless steel wires 2 on template 12 of acrylic mold 1, and arrange them in sequence along the length direction of acrylic mold 1, each group of stainless steel wires 2 includes multiple pairs of stainless steel wires 2, and each pair of stainless steel wires 2 is horizontally distributed; a layer of high temperature resistant adhesive tape 15 is arranged on the upper part of multiple groups of stainless steel wires 2, and multiple groups of stainless steel wires 2 are bonded together as a whole through adhesive tape 15; multiple groups of stainless steel wires 2 with adhesive tape 15 are placed as a whole on transfer plate 16 of acrylic mold 1;

[0052] Step 2: Cutting the stainless steel wires; when the stainless steel wires 2 fill the transfer plate 16, the tape between each adjacent group of stainless steel wires 2 is cut with a cutting knife (a utility knife), thereby separating the multiple groups of stainless steel wires 2 one by one;

[0053] Step 3, welding of the open needle: clamp a group of stainless steel wires 2 with a clamping tool (such as tweezers), and immerse one end of the group of stainless steel wires 2 into a copper-based silver solder melted at a high temperature for dip soldering, and take it out after immersion for a specific time, thereby completing the welding of one end of the open needle, and then use the same process to weld the other end of the group of stainless steel wires 2; repeat the welding steps of the group of stainless steel wires 2, and complete the welding of other groups of stainless steel wires 2 in sequence;

[0054] Step 4: Cleaning the opening needle; tear off the adhesive tape 15 on the opening needle after welding, and use stainless steel weld spot cleaning liquid to clean each opening needle; then use abrasives added with grinding liquid and polishing liquid to grind and polish for one hour, so that the welding point of the opening needle is polished to bright and silver, and then cleaned.

[0055] Preferably, the plurality of groups of stainless steel wires 2 include 5-15 groups;

[0056] Each group of stainless steel wires 2 includes 5 or 6 pairs of stainless steel wires 2 .

[0057] Preferably, the acrylic mold 1 includes a base plate 11 and an upper support plate 13 and a lower support plate 14 placed on the base plate 11. The base plate 11 is provided with a first placement groove for placing the template 12 along the length direction. The template 12 is provided with a plurality of second placement grooves 121 arranged in sequence along the length direction. The plurality of second placement grooves 121 are used to place a plurality of pairs of stainless steel wires 2 in a one-to-one correspondence. The upper support plate 13 and the lower support plate 14 are placed along the width direction of the base plate 11, and a plurality of groups of stainless steel wires 2 are located between the upper support plate 13 and the lower support plate 14; each pair of stainless steel wires 2 are placed horizontally and one-to-one in the second placement groove 121; when the stainless steel wire 2 is placed in the second placement groove 121, the stainless steel wire 2 will be slightly higher than the depth of the second placement groove 121.

[0058] Further preferably, the acrylic mold 1 further comprises a transfer plate 16 for placing the plurality of groups of stainless steel wires 2 bonded by the adhesive tape 15.

[0059] Still more preferably, the bottom plate 11, the template 12, the upper supporting plate 13, the lower supporting plate 14 and the transfer plate 16 are all made of acrylic plates, and the transfer plate 16 is made of a transparent material.

[0060] Preferably, the upper backing plate 13 and the lower backing plate 14 are respectively clamped with a first elastic rubber band 17 and a second elastic rubber band 18, and the first elastic rubber band 17 and the first elastic rubber band 17 can be rubber bands. Specifically, the upper part of the upper backing plate 13 and the lower backing plate 14 are respectively provided with a first groove and a second groove along the length direction, and the first groove is used to fix the first elastic rubber band 17, and the second groove is used to fix the second elastic rubber band 18;

[0061] Two groups of upper and lower slots 111 are symmetrically arranged on the left and right sides of the bottom plate 11 along the length direction. The two groups of slots 111 are respectively located at the upper support plate 13 and the lower support plate 14. The two ends of the first elastic rubber band 17 are respectively connected to a pair of slots 111 on the upper support plate 13, and the two ends of the second elastic rubber band 18 are respectively connected to a pair of slots 111 on the lower support plate 14.

[0062] After the first elastic rubber band 17 is wrapped around the bottom plate 11 for one circle, its two ends are respectively clamped in a pair of clamping grooves 111 on the upper part of the bottom plate 11, and the middle part of the first elastic rubber band 17 is clamped in the first groove on the upper part of the upper support plate 13; after the second elastic rubber band 18 is wrapped around the bottom plate 11 for one circle, its two ends are respectively clamped in a pair of clamping grooves 111 on the lower part of the bottom plate 11, and the middle part of the second elastic rubber band 18 is clamped in the second groove on the upper part of the lower support plate 14.

[0063] Further preferably, the upper and lower groups of slots 111 each include multiple pairs of slots 111 that are symmetrical left and right, which are used to adjust the positions of the upper support plate 13 and the lower support plate 14 and ensure that the distance between the upper support plate 13 and the lower support plate 14 can completely accommodate the stainless steel wire 2.

[0064] The acrylic mold 1 provided in the present application can place a row of multiple groups of stainless steel wires 2; in step 1, it is specifically divided into the following steps:

[0065] 1) Place the template 12 in the first placement groove on the base plate 11;

[0066] 2) placing multiple pairs of stainless steel wires 2 in a one-to-one correspondence in the second placement grooves 121 on the template 12;

[0067] 3) The upper support plate 13 placed on the upper part of the bottom plate 11 is moved downward, and the lower support plate 14 placed on the lower part of the bottom plate 11 is moved upward, and the upper ends and lower ends of the plurality of groups of stainless steel wires 2 are aligned by the upper support plate 13 and the lower support plate 14, see Figure 1-Figure 2 ; Specifically:

[0068] Use the thumb and index finger of the left and right hands to pinch the two ends of the upper support plate 13 and the lower support plate 14 at the same time, and then move them to the position close to the middle stainless steel wire 2, so that the upper ends and lower ends of the multiple groups of stainless steel wires 2 are aligned. When the stainless steel wires 2 are aligned, the upper support plate 13 and the lower support plate 14 are restored to their initial positions under the action of the first elastic rubber band 17 and the second elastic rubber band 18 respectively;

[0069] 4) Adhere the adhesive tape 15 to the upper part of the multiple groups of stainless steel wires 2 along the length direction of the template 12, and then the multiple groups of stainless steel wires 2 will be bonded to the adhesive tape 15 as a whole;

[0070] 5) Tear off the adhesive tape 15 attached to the template 12, and then transfer the multiple groups of stainless steel wires 2 as a whole to the transfer plate 16, see Figure 3 ;

[0071] 6) Repeat the above steps 1) to 5) to place multiple rows of stainless steel wires 2 on the transfer plate 16.

[0072] Preferably, the size of the bottom plate 11 is: length 180mm-200mm, width 150mm-200mm; the size of the template 12 is: length 150mm-180mm, width 40mm;

[0073] The distance between each adjacent group of stainless steel wires 2 is 4-6 mm;

[0074] The width of the second placement groove 121 is 0.5 mm, the depth of the second placement groove 121 is 0.15-0.25 mm, and the distance between adjacent second placement grooves 121 is 1.25-2 mm.

[0075] Preferably, in step 3, the copper-based silver solder is melted by heating a graphite crucible with a 220V high-frequency induction heater, and after the copper-based silver solder is melted to a set high temperature, the open pin is welded;

[0076] The set high temperature is 800-1000° C., the specific time is 3-5 seconds, and the immersion depth of the stainless steel wire 2 is 5-10 mm.

[0077] Preferably, in step 4, the open needle after grinding and polishing is immersed in silver protection liquid for 3-5 minutes for anti-oxidation treatment, and after the anti-oxidation treatment is completed, it is cleaned and finally dried with a hair dryer.

[0078] In summary, this application has at least the following advantages:

[0079] 1) The operation is simple and can weld multiple products at the same time, significantly reducing the time of a single welding, improving the overall production efficiency, avoiding the steps of frequently changing welding objects and repeatedly setting welding parameters, saving time and effort;

[0080] 2) Ensure the consistency of welding quality so that the welding parameters in the same batch remain consistent; through batch operation, the fluctuation of welding quality caused by human factors is also reduced, and the stability and reliability of the product are improved;

[0081] 3) Unified welding of stainless steel wire can also reduce the frequent start and stop of equipment and reduce energy consumption;

[0082] 4) The stainless steel wires can be placed centrally through acrylic templates, which is also convenient for management.

[0083] The technical features of the above embodiments may be arbitrarily combined (as long as there is no contradiction in the combination of these technical features). To make the description concise, not all possible combinations of the technical features in the above embodiments are described; these embodiments that are not explicitly written should also be considered to be within the scope of this specification.

Claims

1. A method for making an open needle, characterized in that: The production method comprises the following steps: Step 1: a swing plate for stainless steel wires; placing multiple groups of stainless steel wires on the template of the acrylic mold, and arranging them in sequence along the length direction of the template, each group of stainless steel wires includes multiple pairs of stainless steel wires, and each pair of the stainless steel wires is horizontally distributed; a layer of adhesive tape is provided on the upper part of the multiple groups of stainless steel wires, and the multiple groups of stainless steel wires are bonded together as a whole by the adhesive tape; placing the multiple groups of stainless steel wires with the adhesive tape as a whole on the transfer plate of the acrylic mold; Step 2, cutting the stainless steel wires; when the transfer plate is filled with the stainless steel wires, the tapes between each adjacent group of stainless steel wires are cut by a cutting knife, thereby separating the multiple groups of stainless steel wires one by one; Step 3, welding of the open needle: clamp a group of stainless steel wires with a clamping tool, and immerse one end of the group of stainless steel wires into a copper-based silver solder melted at a set temperature for dip soldering, take out after immersion for a specific time, and weld the other end of the group of stainless steel wires with the same process; repeat the welding steps of the group of stainless steel wires, and complete the welding of other groups of stainless steel wires in sequence; Step 4: Clean the opening needles; tear off the sticky tape on each group of opening needles after welding, and use stainless steel weld spot cleaning fluid to clean each opening needle; then use abrasives with grinding fluid and polishing fluid to grind and polish for one hour, so that the solder points of the opening needles are polished to bright and silver, and then cleaned.

2. The method for making an open needle according to claim 1, characterized in that: Multiple groups of stainless steel wires include 5-15 groups; Each set of stainless steel wires includes 5 or 6 pairs of stainless steel wires.

3. The method for making an open needle according to claim 1 or 2, characterized in that: The acrylic mold includes the template, the transfer plate, the bottom plate, and an upper support plate and a lower support plate placed on the bottom plate, and the transfer plate is used to place multiple groups of stainless steel wires bonded by the adhesive tape; The bottom plate is provided with a first placement groove for placing the template along the length direction, and the template is provided with a plurality of second placement grooves arranged in sequence along the length direction. The plurality of second placement grooves are used to place a plurality of pairs of stainless steel wires in a one-to-one correspondence. The upper support plate and the lower support plate are placed along the width direction of the bottom plate, and a plurality of groups of stainless steel wires are located between the upper support plate and the lower support plate; each pair of the stainless steel wires is placed horizontally and one-to-one in the second placement groove.

4. The method for making an open needle according to claim 3, characterized in that: The transfer plate is a transparent acrylic plate.

5. The method for making an open needle according to claim 3, characterized in that: The upper backing plate and the lower backing plate are respectively clamped with a first elastic rubber band and a second elastic rubber band; The bottom plate is symmetrically provided with two groups of upper and lower slots on the left and right sides along the length direction, and the two groups of slots are respectively located at the upper support plate and the lower support plate. The two ends of the first elastic rubber band are respectively connected to a pair of slots of the upper support plate, and the two ends of the second elastic rubber band are respectively connected to a pair of slots of the lower support plate.

6. The method for making an open needle according to claim 3, characterized in that: In step one, the specific steps are as follows: 1) placing the template in the first placement groove on the bottom plate; 2) placing multiple pairs of stainless steel wires in a one-to-one correspondence in the second placement grooves on the template; 3) The upper supporting plate placed on the upper part of the bottom plate is moved downward, and the lower supporting plate placed on the lower part of the bottom plate is moved upward, and the upper ends and lower ends of the multiple groups of stainless steel wires are aligned by the upper supporting plate and the lower supporting plate; 4) Adhere the adhesive tape to the upper part of the multiple groups of stainless steel wires along the length direction of the template, and the multiple groups of stainless steel wires will be bonded to the adhesive tape as a whole; 5) Tear off the adhesive tape on the template, and then transfer the multiple groups of stainless steel wires to the transfer plate as a whole.

7. The method for making an open needle according to claim 4, characterized in that: The diameter of the stainless steel wire is 0.25 mm; The dimensions of the bottom plate are: length 180mm-200mm, width 150mm-200mm; The dimensions of the template are: length 150mm-180mm, width 40mm; The distance between each adjacent set of stainless steel wires is 4-6mm; The width of the second placement groove is 0.5 mm, the depth of the second placement groove is 0.15-0.25 mm, and the distance between adjacent second placement grooves is 1.25-2 mm.

8. The method for making an open needle according to claim 1, characterized in that: In step 3, the copper-based silver solder is melted by heating the graphite crucible with a 220V high-frequency induction heater, and after the copper-based silver solder is melted at the set temperature, the open pin is welded; The set temperature is 800-1000° C., the specific time is 3-5 seconds, and the immersion depth of the stainless steel wire is 5-10 mm.

9. The method for making an open needle according to claim 1, characterized in that: In step 4, the open needle after grinding and polishing is immersed in silver protection liquid for 3-5 minutes for anti-oxidation treatment. After the anti-oxidation treatment is completed, it is cleaned and finally the water stains are blown away with a hair dryer.

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