A diode processing and welding device

Abstract

The present invention relates to a welding device, and provides a diode processing welding device, comprising: a base; a material storage bin, which is provided with two side-by-side mounted on the base; a material storage area with a funnel cross-section is provided on the top of the material storage bin, the bottom of the material storage area is connected to a curved and inclined curved channel, a side edge of the material storage bin is provided with a vertical upward feeding channel, the feeding channel and the curved channel are connected, and a material guide plate is symmetrically and inclinedly arranged at the outlet of the top of the feeding channel; a loader is installed at the bottom of the feeding channel; a bracket is installed on the base directly in front of the feeding channel; a lifting soldering head is installed on the bracket; a wire feeder is installed on the bracket; and a lifting support platform is installed directly below the bracket. The present invention places the material to be welded in the material storage bin, lifts the material with the loader, causes the material to slide onto the lifting support platform, and then uses the lifting soldering head to press the fed tin wire onto the pin of the material, thereby completing automatic welding.

Description

Technical Field

[0001] The present invention relates to welding equipment, in particular to diode processing welding equipment. Background Art

[0002] When using a diode, a suitable resistor is usually added to the diode according to the requirements of the product circuit. The two are connected mainly by welding, in which the wires need to be welded. Figure 1 As shown, a worker holds two components to be welded, places their pins together, and then places them on the welding machine's platform. The machine's lifting head then presses down to hold the pins together. This process is also used if additional wires are required. This welding method relies primarily on manual labor, which limits welding speed and prevents significant improvement. Summary of the Invention

[0003] The present invention aims to solve the technical problems existing in the above-mentioned prior art. To this end, the present invention provides a diode processing and welding device.

[0004] To achieve the above-mentioned purpose, the present invention provides such a diode processing and welding device, comprising: a base; a storage bin, which is provided with two materials installed side by side on the base; a storage area with a funnel cross-section is provided on the top of the storage bin, the bottom of the storage area is connected to a curved and inclined curved channel, a side edge of the storage bin is provided with a vertical upward feeding channel, the feeding channel is connected to the curved channel, and a guide plate is symmetrically and obliquely arranged at the outlet of the top of the feeding channel to guide the material to slide downward; a loader is installed at the bottom of the feeding channel for feeding the material The material in the feeding channel is lifted up; the bracket is installed on the base directly in front of the feeding channel; the lifting soldering head is installed on the bracket; the wire feeder is installed on the bracket to feed the tin wire toward the bottom of the lifting soldering head; the lifting support platform is installed directly under the bracket to allow the material sliding off the guide plate to fall on the lifting support platform, and as the lifting support platform moves upward to bring the two materials closer, the wire feeder pushes out the tin wire so that the lifting soldering head presses the tin wire on the pins of the two materials when pressing down, thereby welding the two materials together.

[0005] As a further improvement of the solution, the loader includes: a first motor, installed on the side wall of the storage bin; a screw rod, connected to the first motor; a top plate, sliding into the feeding channel and connected to the screw rod, moving up / down with the rotation of the screw rod.

[0006] As a further improvement of the solution, it also includes: a wedge block, which is installed on the inner wall of the feeding channel in a pop-up manner.

[0007] As a further improvement of the solution, it also includes: a first telescopic push block, embedded in the storage bin; a top block, installed on the movable rod of the first telescopic push block, and the top block is located at the top outlet of the feeding channel.

[0008] As a further improvement of the solution, it also includes: a spray-suction mechanism installed on the lifting platform for stabilizing and discharging the materials dropped on the lifting platform.

[0009] As a further improvement of the solution, it also includes: installing a second lifting soldering head side by side on the bracket, installing the wire feeder next to the second lifting soldering head to feed the tin wire toward the bottom of the second lifting soldering head; a wire cutting mechanism is installed on the bracket, and a group of wire feeders are arranged on the bracket to allow the wire to pass through the wire cutting mechanism and guide the end of the wire to pass under the second lifting soldering head, so as to weld the wire and the material on the first lifting plate together.

[0010] As a further improvement of the solution, the wire feeder includes: a mounting frame for connecting and supporting other components; a wire feeding wheel, which is provided with a groove that fits the wire, and the wire feeding wheel is symmetrically rotated on the mounting frame; a driving motor, which is arranged on the mounting frame to drive the wire feeding wheel to rotate; a wire pipe, which is installed on both sides of the mounting frame, and the wire enters the wire pipe after being rolled by the wire feeding wheel.

[0011] As a further improvement of the solution, the lifting platform includes: a first lifting plate and a second lifting plate mounted side by side on the base; a guide plate mounted on the base, the guide plate having a gently sloping guide groove; a slider slidably arranged in the guide groove; a moving plate slidably mounted on the second lifting plate, the top of the moving plate being flush with the top of the first lifting plate, the slider being connected to the moving plate; a second telescopic push block mounted on the base for driving the first lifting plate and the second lifting plate to move up / down; the tops of the first lifting plate and the moving plate are moved upwards A receiving groove is provided at the bottom to accommodate materials. The receiving groove provided on the movable plate is shallower than the receiving groove provided on the first lifting plate. Materials fall from the guide plate into the receiving groove. When the first lifting plate and the second lifting plate move up at the same time, the movable plate is guided by the guide plate and moves closer to the first lifting plate. A material blocking protrusion is provided on the edge of the receiving groove to prevent materials from falling from the receiving groove. An extension part is provided on both sides of the top edge of the first lifting plate. A notch is provided on the top edge of the movable plate on the side close to the first lifting plate to fit with the extension part.

[0012] As a further improvement of the solution, the spray-suction mechanism includes: an air pump installed on the first lifting plate; an air pipe connected to the air pump; air holes are opened in the accommodating grooves on the first lifting plate and the movable plate, and the air pipe is connected to the air holes.

[0013] As a further improvement of the scheme, the wire cutting mechanism includes: two cutting blades installed side by side, the two cutting blades are constrained to fit together by a constraint card and then slid through the bracket; a second motor is installed on the bracket; a camshaft is connected to the second motor; a connecting hole is opened on the cutting blade, and the camshaft is connected to the cutting blade through the connecting hole, and as the camshaft rotates, the two cutting blades slide back and forth in an offset manner; an annular cutting edge is opened on the two cutting blades, and when the wire passes through the annular cutting edge, the cutting blades sliding in an offset manner up and down will cut the wire; wherein, an open wire drawing notch is opened on the wire tube on the wire feeder close to the side of the first lifting plate.

[0014] The present invention brings the following effects:

[0015] 1. The present invention places the materials to be welded in a storage bin, lifts the materials one by one through a loader, and makes the materials slide onto a matching lifting platform. After the materials move up, the lifting soldering head is used to press on the pins of the two materials. While pressing down, the tin wire sent out will be pressed on the pins of the two materials together, thereby completing automatic welding. After welding is completed, the materials can be taken out.

[0016] 2. The spray-suction mechanism can maintain a stable adsorption of the material by exhausting air when the lifting platform moves up, and after welding is completed, the welded material can be ejected from the holding tank by air jet.

[0017] 3. When the lifting platform moves upward, the movable plate will move closer to the first lifting plate, thereby stacking the pins of the two materials placed on the top. Through this action, the two materials can be better welded together during welding.

[0018] 4. Through the wire cutting mechanism, if additional welding wires are required during welding, the wires can be stripped of the insulation layer and then welded together with the material and cut. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the prior art.

[0020] Figure 2 It is a complete schematic diagram of the present invention.

[0021] Figure 3 For the present invention Figure 2 Schematic diagram from another perspective.

[0022] Figure 4 For the present invention Figure 2 Schematic diagram with part of the cover omitted.

[0023] Figure 5 It is a schematic diagram of the internal structure of the storage bin of the present invention.

[0024] Figure 6 It is a schematic diagram of the bracket, lifting soldering head, wire feeder, lifting support platform and spraying and suction mechanism of the present invention.

[0025] Figure 7 Schematic diagram of the wire feeder of the present invention.

[0026] Figure 8 It is a schematic diagram of the lifting platform of the present invention.

[0027] Figure 9 This is a schematic diagram of the lifting platform of the present invention in working state.

[0028] Figure 10 For the present invention Figure 8 Schematic diagram from another perspective.

[0029] Figure 11 Schematic diagram of the wire cutting mechanism of the present invention.

[0030] Figure 12 This is a disassembled schematic diagram of the wire cutting mechanism of the present invention.

[0031] Among them, the correspondence between the reference numerals in the accompanying drawings and the names of the components is: 501-placing table, 502-lifting welding head, 503-welding head, 504-component, 505-pin, 11-base, 12-storage bin, 121-storage area, 122-bending channel, 123-feeding channel, 124-guide plate, 13-bracket, 14-lifting welding head, 15-wire feeder, 16-lifting support platform, 21-first motor, 22-screw, 23-top plate, 31-wedge block, 41-first telescopic push block, 42-top block, 51-spray and suction mechanism, 61-wire cutting machine Structure, 151-installation frame, 152-feeding wheel, 153-drive motor, 154-conductor, 71-first lifting plate, 72-second lifting plate, 73-guide plate, 74-guide groove, 75-slider, 76-moving plate, 77-second telescopic push block, 78-accommodating groove, 79-material blocking protrusion, 710-extension part, 711-recess, 52-air pump, 53-trachea, 54-air hole, 162-wire withdrawal notch, 163-cutting blade, 164-constraint card plate, 165-second motor, 166-camshaft, 167-coupling hole, 168-annular blade. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It will be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some, rather than all, structures related to the present application are shown in the drawings. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0033] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, electrical connections, or mutual communication; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0034] The present invention specifically discloses a diode processing and welding device, such as Figure 2-Figure 12As shown, it includes: a base 11 and a storage bin 12 installed on the base 11, there are two storage bins 12, and the two storage bins 12 are installed side by side on the base 11, and a storage area 121 with a funnel cross-section is provided on the top of the storage bin 12, and the materials to be welded are placed in the two storage areas 121 respectively, and then the materials roll downward along the curved and inclined curved channel 122 connected to the bottom of the storage area 121, and a vertical upward feeding channel 123 is provided on one side edge of the storage bin 12, and the feeding channel 123 is connected to the curved channel 122, and the material will roll into the feeding channel 123 along the curved channel 122, wherein the width of the feeding channel and the feeding channel 123 is only the width of one material, so that the material will not be stuck in the channel, and a guide plate 124 is symmetrically and obliquely installed at the outlet of the top of the feeding channel 123. After the material is discharged from the feeding channel 123, it will fall between the two guide plates 124 and flow along The guide plate 124 slides downwardly at an angle, and a loader is installed at the bottom of the loading channel 123. When the loader is working, it will intermittently push the material in the loading channel 123 to the position of the channel mouth, so that the material slides along the guide plate 124. A bracket 13 is fixedly installed on the base 11, and the bracket 13 is located directly in front of the loading channel 123. A lifting soldering head 14 is fixedly installed on the bracket 13, and a wire feeder 15 is installed on the bracket 13 to feed the tin wire toward the bottom of the lifting soldering head 14; the lifting support platform 16 is installed directly below the bracket 13, and the material falling from the guide plate 124 will fall on the lifting support platform 16, and after the lifting support platform 16 lifts the material close to the lifting soldering head 14, the wire feeder 15 works to feed the tin wire, and then the soldering head part of the lifting soldering head 14 extends downward to press the tin wire on the pins 505 of the two materials. The heated soldering head melts the tin wire so that the pins 505 of the two materials are welded together.

[0035] The present invention places the materials to be welded in a storage bin 12, lifts the materials one by one through a loader, and allows the materials to slide onto a matching lifting platform 16. After the materials move upward, the lifting soldering head 14 is used to press on the pins 505 of the two materials. While pressing down, the delivered tin wire will also be pressed on the pins 505 of the two materials, thereby completing automatic welding. After welding is completed, the materials can be taken out.

[0036] Reference Figure 5 As shown, the loader includes: a first motor 21 mounted on the side wall of the storage bin 12, a screw rod 22 connected to the first motor 21, and a top plate 23 that slides into the loading channel 123 and is connected to the screw rod 22. The top plate 23 moves up and down as the screw rod 22 rotates. Specifically, after the first motor 21 drives the screw rod 22 to rotate, the top plate 23 can rise or fall, and when it rises, it lifts the material in the loading channel 123.

[0037] Reference Figure 5 As shown, it also includes: a wedge block 31 installed in a pop-up manner on the inner wall of the feeding channel 123, and the end of the wedge block 31 is a slope. When the feeder pushes the material upward from the bottom of the feeding channel 123, the material will pass over the wedge block 31 along the slope, and then the wedge block 31 will pop out again and clamp the material to prevent it from falling.

[0038] Reference Figure 5 As shown, the apparatus further includes: a first telescopic push block 41 embedded in the storage bin 12; a top block 42 mounted on a movable rod of the first telescopic push block 41; and the top block 42 is located at the top outlet of the feeding channel 123. After the material reaches the outlet of the feeding channel 123, the first telescopic push block 41 pushes the top block 42 out, thereby pushing the material onto the guide plate 124 to prevent the material from falling onto the guide plate 124 in time.

[0039] Reference Figure 6 As shown, it also includes: a second lifting soldering head 14 installed side by side with the previous lifting soldering head 14 on the bracket 13, a wire feeder 15 is installed next to the second lifting soldering head 14 to feed the tin wire toward the bottom of the second lifting soldering head 14, and a wire cutting mechanism 61 is installed on the bracket 13. A group of wire feeders 15 are arranged on the bracket 13. The wire feeders 15 are distributed on both sides of the wire cutting mechanism 61, so that the wire can pass through the middle of the wire cutting mechanism 61 and guide the end of the wire that has passed through to the bottom of the second lifting soldering head 14, thereby welding the wire and the material on the first lifting plate 71 together. Specifically, when it is necessary to weld the wire to the pin 505 of the material, after the material is moved up and welded by the first lifting soldering head 14, the wire feeder 15 cooperating with the wire cutting mechanism 61 will feed the wire, and then the second lifting soldering head 14 will press the tin wire on the pin 505 of the material and the wire according to the working mode of the first lifting soldering head 14, thereby welding the two together.

[0040] Reference Figure 7 As shown, the wire feeder 15 includes: a mounting frame 151 for connecting and supporting other components, a wire feeding wheel 152 symmetrically rotatably mounted on the mounting frame 151, and a groove that fits the wire and tin wire is provided on the wire feeding wheel 152. The tin wire or wire to be transported is inserted into the groove of the two wire feeding wheels 152. As the wire feeding wheels 152 rotate, the wire can be pushed. A driving motor 153 is installed on the mounting frame 151 to drive the wire feeding wheel 152 to rotate. The wire tube 154 is installed on both sides of the mounting frame 151. The tin wire and the wire enter the wire tube 154 after being rolled by the wire feeding wheel 152, and can reach the designated position under the guidance of the wire tube 154.

[0041] Reference Figure 8 and Figure 9When the second lifting plate 72 moves upward, the sliding plate 75 on the sliding plate 76 will follow the deviation of the sliding plate 75 and approach the first lifting plate 71. When the sliding plate 75 slides to the top of the guide groove 74, the sliding plate 76 can be close to the first lifting plate 71.

[0042] The top of the first lifting plate 71 and the movable plate 76 are downwardly opened with a receiving groove 78 for accommodating material, and the receiving groove 78 opened by the movable plate 76 is shallower than the receiving groove 78 opened by the first lifting plate 71, and the material falls from the guide plate 124 into the receiving groove 78; the material stopping protrusion 79 is provided at the edge of the receiving groove 78 to prevent the material from falling from the receiving groove 78

[0043] Reference Figure 4 、 Figure 6 and Figure 10 As shown, the apparatus further includes: a spray-suction mechanism 51 mounted on the lifting platform 16, which is used to stabilize and discharge the material that has landed on the lifting platform 16. The spray-suction mechanism 51 specifically includes: an air pump 52 mounted on the first lifting plate 71, an air pipe 53 connected to the air pump 52, and air holes 54 formed in the receiving groove 78 on the first lifting plate 71 and the movable plate 76, and the air pipe 53 is connected to the air holes 54. Specifically, after the material lands on the receiving groove 78, the air pump 52 draws air through the air holes 54 to absorb the material into the receiving groove 78. After the material is welded, the air pump 52 ejects air to blow the material out of the receiving groove 78, thereby achieving the effect of automatically discharging the material.

[0044] Reference Figure 11 and Figure 12As shown, the wire cutting mechanism 61 includes: two cutting blades 163 installed side by side, the two cutting blades 163 are attached to each other and constrained together by a constraining card 164, and then slidably penetrated on the bracket 13, the second motor 165 is installed on the bracket 13, and the cam shaft 166 is connected to the second motor 165, and the two cutting blades 163 are each provided with a connecting shaft hole 167, and the cam shaft 166 is connected to the cutting blades 163 through the connecting shaft hole 167. Therefore, as the cam shaft 166 rotates, the two cutting blades 163 will present a reciprocating sliding state that is staggered up and down, and an annular cutting edge 168 is provided on the two cutting blades 163, and a wire feeder 15 for conveying a wire is installed on both sides of the cutting blades 163. Therefore, after the two cutting blades 163 slide to a flush state, the annular cutting edge 168 is flush, and the wire can pass through the annular cutting edge 168. When the annular cutting edge 168 is staggered, the wire will be cut.

[0045] Specifically, when in use, the wire feeder 15 first passes a part of the wire through the annular blade 168, and then the two cutting blades 163 can cut into the insulation layer of the wire, but there is no need to cut the internal wire core. Then the wire is pulled back by the wire feeder 15, so that the insulation layer at the end of the wire can be stripped off. After stripping, the wire is passed through the annular blade 168 and sent to the opposite wire feeder 15 by the wire feeder 15. After the wire enters the opposite wire feeder 15, the cutting blade 163 can directly cut the wire. After the wire is guided by the wire tube 154, the end of the wire with the exposed core can be aligned with the pin 505 of the material, and then the second lifting soldering head 14 installed on the bracket 13 is used to weld the wire and the pin 505 of the material together.

[0046] Among them, an open wire extraction notch 162 is opened on the wire tube 154 on the wire feeder 15 on the side close to the first lifting plate 71. After welding is completed, the wire in the wire tube 154 can be pulled out through the wire extraction notch 162. When pulling it out, the wire extraction notch 162 is deformed accordingly to allow the wire to come out.

[0047] The above-described embodiments merely represent preferred embodiments of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications, improvements, and substitutions without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A diode processing and welding device, comprising: A base (11); a storage bin (12), which is provided with two storage areas (121) installed side by side on the base (11); characterized in that it also includes: a storage area (121) with a funnel cross-section is provided on the top of the storage bin (12); the bottom of the storage area (121) is connected to a curved and inclined curved channel (122); a side edge of the storage bin (12) is provided with a vertical upward feeding channel (123); the feeding channel (123) is connected to the curved channel (122); a guide plate (124) is symmetrically inclined and arranged at the outlet of the top of the feeding channel (123) to guide the material to slide downward; a feeder is installed at the bottom of the feeding channel (123) to feed the material in the feeding channel (123) to the top a bracket (13) mounted on the base (11) directly in front of the feeding channel (123); a lifting soldering head (14) mounted on the bracket (13); a wire feeder (15) mounted on the bracket (13) for feeding the tin wire toward the bottom of the lifting soldering head (14); a lifting support platform (16) mounted directly below the bracket (13) so that the material sliding down from the guide plate (124) falls onto the lifting support platform (16), and as the lifting support platform (16) moves upward to bring the two materials closer together, the wire feeder (15) pushes out the tin wire so that the lifting soldering head (14) presses the tin wire onto the pins (505) of the two materials when pressing downward, thereby welding the two materials together; The lifting platform (16) comprises: a first lifting plate (71) and a second lifting plate (72) mounted side by side on the base (11); a guide plate (73) mounted on the base (11), and a gently sloped guide groove (74) is provided on the guide plate (73); a slider (75) is slidably arranged in the guide groove (74); a moving plate (76) is slidably mounted on the second lifting plate (72), the top of the moving plate (76) is flush with the top of the first lifting plate (71), and the slider (75) is connected to the moving plate (76); a second telescopic push block (77) is mounted on the base (11) and is used to drive the first lifting plate (71) and the second lifting plate (72) to move up / down; the tops of the first lifting plate (71) and the moving plate (76) are downwardly opened with a groove capable of The material is placed in the receiving groove (78), the receiving groove (78) provided on the movable plate (76) is shallower than the receiving groove (78) provided on the first lifting plate (71), and the material falls from the guide plate (124) into the receiving groove (78). When the first lifting plate (71) and the second lifting plate (72) move upward at the same time, the movable plate (76) is guided by the guide plate (73) to move closer to the first lifting plate (71); a material blocking protrusion (79) is provided on the edge of the receiving groove (78) to prevent the material from falling from the receiving groove (78); an extension portion (710) is provided on both sides of the top edge of the first lifting plate (71); a notch (711) is provided on the top edge of the movable plate (76) on the side close to the first lifting plate (71) and is matched with the extension portion (710).

2. The diode processing and welding equipment according to claim 1, characterized in that: The loader comprises: a first motor (21) mounted on the side wall of the storage bin (12); a screw rod (22) connected to the first motor (21); a top plate (23) slidingly inserted into the feeding channel (123) and connected to the screw rod (22), and moving up / down as the screw rod (22) rotates.

3. The diode processing and welding equipment according to claim 2, characterized in that: Also includes: The wedge block (31) is installed on the inner side wall of the feeding channel (123) in a pop-up manner.

4. The diode processing and welding equipment according to claim 3, characterized in that: Also includes: A first telescopic push block (41) is embedded in the storage bin (12); a top block (42) is mounted on a movable rod of the first telescopic push block (41), and the top block (42) is located at the top outlet of the loading channel (123).

5. The diode processing and welding equipment according to claim 4, characterized in that: Also includes: The spraying and sucking mechanism (51) is installed on the lifting platform (16) and is used for stabilizing and discharging the materials dropped on the lifting platform (16).

6. The diode processing and welding equipment according to claim 5, characterized in that: Also includes: A second lifting soldering head (14) is installed side by side on the bracket (13), and a wire feeder (15) is installed next to the second lifting soldering head (14) to feed the tin wire toward the bottom of the second lifting soldering head (14); a wire cutting mechanism (61) is installed on the bracket (13), and a group of wire feeders (15) are arranged on the bracket (13) to allow the wire to pass through the wire cutting mechanism (61) and guide the end of the wire to pass under the second lifting soldering head (14), so as to weld the wire and the material on the lifting platform (16) together.

7. The diode processing and welding equipment according to claim 6, characterized in that: The wire feeder (15) comprises: a mounting frame (151) for connecting and supporting other components; a wire feeding wheel (152) provided with a groove for fitting with the wire, the wire feeding wheel (152) being symmetrically rotatably arranged on the mounting frame (151); a driving motor (153) arranged on the mounting frame (151) for driving the wire feeding wheel (152) to rotate; and a wire conduit (154) mounted on both sides of the mounting frame (151), the wire being rolled by the wire feeding wheel (152) and then entering the wire conduit (154).

8. The diode processing and welding equipment according to claim 7, characterized in that: The ejection and suction mechanism (51) comprises: an air pump (52) mounted on the first lifting plate (71); an air pipe (53) connected to the air pump (52); air holes (54) are provided in the receiving grooves (78) on the first lifting plate (71) and the movable plate (76), and the air pipe (53) is connected to the air holes (54).

9. The diode processing and welding equipment according to claim 8, characterized in that: The thread cutting mechanism (61) comprises: two cutting blades (163) installed side by side, the two cutting blades (163) being constrained and attached together by a constraining card (164) and then slidingly penetrated on the bracket (13); a second motor (165) installed on the bracket (13); a cam shaft (166) connected to the second motor (165); a connecting shaft hole (167) provided on the cutting blade (163), the cam shaft (166) being connected to the second motor (165) through the connecting shaft hole (167). The cutting blades (163) are connected, and as the cam shaft (166) rotates, the two cutting blades (163) slide back and forth in an offset manner; the two cutting blades (163) are provided with an annular blade edge (168), and when the wire passes through the annular blade edge (168), the cutting blades (163) that slide in an offset manner up and down will cut the wire; wherein, the wire tube (154) on the wire feeder (15) near the side of the first lifting plate (71) is provided with an open wire drawing notch (162).

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