Wire cutting device for metal wire drawing machine

Abstract

The present invention relates to the technical field of wire shearing equipment, and in particular to a wire shearing device for a metal wire drawing machine, comprising a base, the top of the base is provided with two front and rear groups of connecting plates that can move forward and backward, two connecting plates form a group, and the two connecting plates of each group are symmetrically arranged on the left and right, and the tops of the two groups of connecting plates are connected with mounting rings, and the front mounting ring is provided with two left and right clamping blocks that can approach and move away from each other, and the rear mounting ring is provided with four movable blocks that can approach and move away from each other at even intervals along the circumference, and the four movable blocks are connected to the sides close to each other. The front and rear two pressing plates can press and fix the front and rear sides of the metal wire shearing area on the front and rear inverted U-shaped support plates, and the contact wheel can be moved forward close to the metal wire to straighten the shearing area of ​​the metal wire to ensure the flatness of the incision after the wire is sheared and the product quality.

Description

Technical Field

[0001] The invention relates to the technical field of wire shearing equipment, and in particular to a wire shearing device for a metal wire drawing machine. Background Art

[0002] A metal wire drawing machine is a processing equipment that draws metal wires so that their wire diameter, roundness, surface finish, straightness and other indicators can meet the needs of downstream production. A wire shearing device is used in the metal wire drawing machine to shear the metal wires.

[0003] After searching, the patent publication number is: CN209006584U, a wire cutting device for a metal wire drawing machine, including a bracket, a horizontal air shear slide is provided on the bracket, an air shear is provided on the air shear slide, an air shear cylinder is provided at the rear of the air shear, the air shear cylinder is installed on the bracket, and the telescopic driving part of the air shear cylinder is fixedly connected to the air shear; a wire sensor is provided at the front end of the air shear slide; a longitudinal wire hook slide is provided at the rear of the front end of the air shear slide, a protruding wire hook is provided on the wire hook slide, and a wire hook cylinder is provided above the wire hook, and the telescopic driving part of the wire hook cylinder is fixedly connected to the wire hook.

[0004] Although the above patent can bring the wire to be cut to the gas shear for cutting through the wire hook, the above patent cannot pre-straighten the wire, resulting in the cut of the metal wire being inclined after being cut, making the cut of the metal wire uneven. The uneven cut will not only directly affect the subsequent processing and use of the metal wire, but also produce sharp edges, increasing the safety risks of operators during handling and use, and the uneven cut will affect the quality of the wire. Summary of the invention

[0005] The object of the present invention is to provide a wire shearing device for a metal wire drawing machine which can straighten and pre-treat wires before shearing in order to solve the above-mentioned problems.

[0006] The present invention achieves the above-mentioned purpose through the following technical scheme: a wire shearing device for a metal wire drawing machine, comprising a base, an inverted U-shaped mounting plate connected to the top rear side of the base, a T-shaped lifting plate slidably connected inside the inverted U-shaped mounting plate, a screw motor is provided on the inner wall of the inverted U-shaped mounting plate, the screw of the screw motor is threadedly connected to the T-shaped lifting plate, an electric gas shear is installed on the bottom front side of the T-shaped lifting plate, three inverted U-shaped support plates for supporting wires are connected at intervals from front to back on the top of the base, a mounting frame is installed on the top of the inverted U-shaped mounting plate, a pressing component for pressing and fixing the wire on the inverted U-shaped support plate is provided on the mounting frame, and two front and rear connecting plates that can move forward and backward are provided on the top of the base, and two connecting plates form a group. The two connecting plates of each group are symmetrically arranged on the left and right, and the tops of the two groups of connecting plates are connected with mounting rings, which are located between the front and middle inverted U-shaped support plates. The front mounting ring is provided with left and right clamping blocks that can approach and move away from each other, and the clamping part of the clamping blocks is arc-shaped. The rear mounting ring is provided with four movable blocks that can approach and move away from each other at even intervals along the circumference, and the four movable blocks are connected with contact wheels on the sides close to each other. A pushing component is provided between the base and the mounting ring, and the pushing component can push the two clamping blocks to approach and move away from each other, and can also push the four movable blocks to approach and move away from each other. A driving component for driving the connecting plate to move forward and backward is provided on the base.

[0007] Preferably, the pressing assembly includes two front and rear electric push rods installed on the mounting frame, and the telescopic rods of the two electric push rods are connected to a pressing plate, and the two pressing plates are respectively located on the upper side of the front and rear inverted U-shaped support plates.

[0008] Preferably, the pushing assembly includes two front and rear fixed plates connected to the top of the base, the fixed plate on the rear side is rotatably connected with a spline shaft, the fixed plate on the front side is installed with a stepper motor, the output shaft of the stepper motor is connected with the spline shaft, the spline shaft is keyed with two front and rear spur gears, the front sides of the two spur gears are connected with spline sleeves, the spline sleeves are arranged on the spline shaft, the outer walls of the two spline sleeves are rotatably connected with connecting blocks, the two connecting blocks are respectively fixedly connected to the outer walls of the two mounting rings, the rear sides of the two mounting rings are rotatably connected with open hole disks, the outer walls of the two open hole disks are connected with gear rings, the two gear rings are respectively meshed with the two spur gears, the open hole disks are provided with oblique grooves evenly spaced along the circumferential direction, the front open hole disk is provided with two oblique grooves, the rear open hole disk is provided with four oblique grooves, a pushing rod is slidably connected in the oblique grooves, the two pushing rods on the front open hole disk are respectively fixedly connected to the two clamping blocks, and the four pushing rods on the rear open hole disk are respectively fixedly connected to the four movable blocks.

[0009] Preferably, the driving assembly includes a screw rod I and a screw rod II rotatably connected to the base, screw rod II is located on the left side of screw rod I, screw rod I is threadedly connected to the connecting plate on the right front side, the connecting plate on the right rear side is rotatably and slidably connected to screw rod I, screw rod II is threadedly connected to the connecting plate on the left rear side, the connecting plate on the right front side is rotatably and slidably connected to screw rod II, the front sides of screw rods I and screw rod II are both connected to driving gears, a driving motor is installed on the front side of the base, a missing gear is connected to the output shaft of the driving motor, and the missing gear can rotate to engage with the driving gear.

[0010] Preferably, an arc-shaped groove for accommodating the wire is formed on the top of the inverted U-shaped support plate.

[0011] Preferably, a unloading mechanism is provided on the inverted U-shaped support plate on the front side, and the unloading mechanism includes two left and right pushing wheels rotatably connected to the top of the inverted U-shaped support plate on the front side through a rotating shaft. A trigger assembly is provided on the inverted U-shaped support plate on the front side. When the front pressure plate moves up, the trigger assembly is driven to work, and the trigger assembly drives the rotating shaft to drive the pushing wheel to rotate, so as to push the cut wire forward from the inverted U-shaped support plate on the front side.

[0012] Preferably, the trigger assembly includes two left and right magnets that are arranged on the front inverted U-shaped support plate and can move up and down. The front pressure plate can move downward and contact the magnet. The front pressure plate is made of iron. A tension spring is connected between the magnet and the front inverted U-shaped support plate. A winding wheel is connected to the lower part of the rotating shaft, and a pull rope is wound on the winding wheel. The two pull ropes are respectively connected to the two magnets, and a spiral spring is connected between the rotating shaft and the inverted U-shaped support plate.

[0013] Preferably, a connecting plate is connected to the top rear side of the base, and an annular brush for cleaning the wire is connected to the top of the connecting plate.

[0014] Preferably, the clamping part of the clamping block is connected to an arc-shaped rubber block.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The front and rear two pressing plates can press and fix the front and rear sides of the metal wire shearing area on the front and rear two inverted U-shaped support plates. The contact wheel moves forward close to the metal wire to straighten the shearing area of ​​the metal wire to ensure the flatness of the incision after wire shearing and the product quality.

[0017] 2. Through the cooperation of magnets, pull ropes and winding wheels, the front pressure plate can be moved up and the rotating shaft can be driven to drive the pushing wheel to rotate, so as to push the cut wire forward from the inverted U-shaped support plate on the front side to realize automatic unloading.

[0018] 3. The metal wire can be cleaned by the circular brush, so as to achieve the effect of cleaning the metal wire before shearing. The cleaned metal wire can obtain a smoother and smoother cut when shearing, which helps to improve the overall quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0020] Figure 2 It is a partial three-dimensional structural schematic diagram of the present invention.

[0021] Figure 3 It is a three-dimensional structural schematic diagram of the pushing component and the driving component of the present invention.

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the present invention without a gear.

[0023] Figure 5 It is a schematic diagram of the connection between the mounting ring and the clamping block of the present invention.

[0024] Figure 6 It is a schematic diagram of the installation of the movable block and the contact wheel of the present invention.

[0025] Figure 7 It is the installation schematic diagram of the unloading mechanism of the present invention.

[0026] Figure 8 It is a three-dimensional structural schematic diagram of the unloading mechanism of the present invention.

[0027] Fig. 9 It is a schematic diagram of the connection between the connecting plate and the annular brush of the present invention.

[0028] In the figure: 1-base, 2-inverted U-shaped mounting plate, 3-T-shaped lifting plate, 4-screw motor, 5-electric gas shear, 6-inverted U-shaped support plate, 61-arc groove, 7-mounting frame, 8-pressing assembly, 81-electric push rod, 82-pressing plate, 9-connecting plate, 10-mounting ring, 11-clamping block, 12-movable block, 13-contact wheel, 140-fixed plate, 141-spline shaft, 142-stepping motor, 143-connecting block, 144-spline sleeve, 1 45-spur gear, 146-perforated disc, 147-gear ring, 148-bevel groove, 149-pushing rod, 151-screw rod I, 152-screw rod II, 153-driving gear, 154-driving motor, 155-missing gear, 161-rotating shaft, 162-pushing wheel, 163-magnet, 164-tension spring, 165-winding wheel, 166-pull rope, 167-volute spring, 17-connecting plate, 18-annular brush, 19-arc rubber block. DETAILED DESCRIPTION

[0029] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0030] A wire cutting device for a metal wire drawing machine, see Figure 1-Figure 6, including a base 1, an inverted U-shaped mounting plate 2 is connected to the top rear side of the base 1, a T-shaped lifting plate 3 is slidably connected to the inverted U-shaped mounting plate 2 through a slide groove, a screw motor 4 is provided on the left inner wall of the inverted U-shaped mounting plate 2, the screw motor 4 is composed of a screw and a servo motor, the screw is rotatably connected to the left inner wall of the inverted U-shaped mounting plate 2, the screw is threadedly connected to the T-shaped lifting plate 3, the servo motor is installed at the lower part of the left inner wall of the inverted U-shaped mounting plate 2, the output shaft of the servo motor is connected to the screw, the T-shaped lifting plate 3 can be driven downward by the servo motor driving the screw to rotate, and the T-shaped lifting plate 3 can be driven upward by the servo motor driving the screw to reverse, and an electric gas shear 5 is installed on the bottom front side of the T-shaped lifting plate 3, and three support wires are connected to the top of the base 1 from front to back. The inverted U-shaped support plate 6 of the wire is provided, and a mounting frame 7 is installed on the top of the inverted U-shaped mounting plate 2. A pressing component 8 for pressing and fixing the wire on the inverted U-shaped support plate 6 is provided on the mounting frame 7. The pressing component 8 includes two front and rear electric push rods 81 installed on the mounting frame 7. The telescopic rods of the two electric push rods 81 are connected with a pressing plate 82. The two pressing plates 82 are respectively located on the upper sides of the front and rear inverted U-shaped support plates 6. The top of the inverted U-shaped support plate 6 is provided with an arc-shaped groove 61 for accommodating the wire. The arc-shaped groove 61 can ensure that the wire maintains a stable position during the shearing process. The top of the base 1 is slidably connected with two front and rear connecting plates 9 that can move forward and backward through a slide groove. The connecting plates 9 are two in a group, and the two connecting plates 9 in each group are symmetrically arranged. The two groups of connecting plates 9 is connected to the top of each wire, and the mounting ring 10 is located between the front and middle inverted U-shaped support plates 6. The front mounting ring 10 is slidably connected with two left and right clamping blocks 11 that can approach and move away from each other through a guide rod. The clamping part of the clamping block 11 is arc-shaped to better fit the wire. An arc-shaped rubber block 19 is connected to the clamping part of the clamping block 11. The arc-shaped rubber block 19 can protect the wire to avoid the clamping block 11 from clamping the wire. The rear mounting ring 10 is evenly spaced along the circumference and slidably connected with four movable blocks 12 that can approach and move away from each other through a guide rod. The four movable blocks 12 are rotatably connected to the contact wheel 13 on the side close to each other. A pushing component is provided between the base 1 and the mounting ring 10, and the pushing component includes a connecting There are two front and rear fixing plates 140 on the left side of the top of the base 1, and a spline shaft 141 is rotatably connected to the fixing plate 140 on the rear side, and a stepper motor 142 is installed on the fixing plate 140 on the front side. The output shaft of the stepper motor 142 is connected to the spline shaft 141, and two front and rear spur gears 145 are key-connected to the spline shaft 141. The front sides of the two spur gears 145 are both connected to spline sleeves 144, and the spline sleeves 144 are slidably sleeved on the spline shaft 141. The outer walls of the two spline sleeves 144 are both rotatably connected to connecting blocks 143, and the two connecting blocks 143 are respectively fixedly connected to the outer walls of the two mounting rings 10. The rear sides of the two mounting rings 10 are both rotatably connected to perforated discs 146, and the outer walls of the two perforated discs 146 are both connected to gear rings 147.The two gear rings 147 are respectively meshed with the two spur gears 145. The perforated disc 146 is provided with inclined grooves 148 at even intervals along the circumferential direction. The front perforated disc 146 is provided with two inclined grooves 148, and the rear perforated disc 146 is provided with four inclined grooves 148. Push rods 149 are slidably connected in the inclined grooves 148. The two push rods 149 on the front perforated disc 146 are respectively fixedly connected to the two clamping blocks 11, and the four push rods 149 on the rear perforated disc 146 are respectively fixedly connected to the four movable blocks 12. A driving assembly for driving the connecting plate 9 to move forward and backward is provided on the base 1. The driving assembly includes a rotating connection The screw rod Ⅰ151 and screw rod Ⅱ152 on the base 1, screw rod Ⅱ152 is located on the left side of screw rod Ⅰ151, screw rod Ⅰ151 is threadedly connected to the connection plate 9 on the right front side, the connection plate 9 on the right rear side is rotatably and slidably connected to the screw rod Ⅰ151, screw rod Ⅱ152 is threadedly connected to the connection plate 9 on the left rear side, the connection plate 9 on the right front side is rotatably and slidably connected to the screw rod Ⅱ152, the front sides of the screw rods Ⅰ151 and Ⅱ152 are both connected to the driving gear 153, the front side of the base 1 is installed with a driving motor 154, the output shaft of the driving motor 154 is connected to a missing gear 155, and the missing gear 155 can be rotated to mesh with the driving gear 153.

[0031] The metal wire that has been drawn by the metal wire drawing machine is inserted from the back to the front into the mounting ring 10 on the front side, and the stepper motor 142 is controlled to drive the spline shaft 141 to rotate, so that the spline sleeve 144 can drive the spur gear 145 to rotate, and the cooperation of the spur gear 145 and the ring gear 147 can make the perforated disc 146 rotate, and the perforated disc 146 on the front side rotates through the two inclined grooves 148 thereon to push the two pushing rods 149 on the front side to approach each other, so that the two clamping blocks 11 are close to each other to clamp the metal wire, and the perforated disc 146 on the rear side rotates through the four inclined grooves 148 thereon to push the four pushing rods 149 on the rear side to approach each other, so that the four movable blocks 12 drive the four contact wheels 13 to approach each other and fit tightly with the metal wire. Controlling the drive motor 154 to drive the missing gear 155 to rotate can make the missing gear 155 first mesh with the right driving gear 153, thereby driving the right driving gear 153 to drive the screw rod Ⅰ151 to rotate, so that the right front connecting plate 9 drives the front mounting ring 10 to move forward, and then the clamping block 11 moves forward to pull the metal wire to be sheared forward to the inverted U-shaped support plate 6 on the front side; when the missing gear 155 rotates and disengages from the right driving gear 153, the missing gear 155 meshes with the left driving gear 153, thereby driving the left driving gear 153 to drive the screw rod Ⅱ152 to rotate, so that the left rear connecting plate 9 drives the rear mounting ring 10 to move forward, and then the movable block 12 drives the contact wheel 13 to move forward. Then, the stepper motor 142 is controlled to drive the spline shaft 141 to reverse, so that the perforated disc 146 is reversed, and the perforated disc 146 on the front side is reversed to push the two push rods 149 on the front side away from each other through the two inclined grooves 148 thereon, so that the two clamping blocks 11 are moved away from each other to release the metal wire, and the perforated disc 146 on the rear side is reversed to push the four push rods 149 on the rear side away from each other through the four inclined grooves 148 thereon, so that the four movable blocks 12 drive the four contact wheels 13 to move away from each other and disengage from the metal wire; then the drive motor 154 is controlled to drive The missing gear 155 is reversed so that the missing gear 155 first meshes with the driving gear 153 on the left, thereby driving the driving gear 153 on the left to drive the screw rod II 152 to reverse, so that the connecting plate 9 on the left rear side drives the mounting ring 10 on the rear side to move backward and reset; when the missing gear 155 is reversed and disengaged from the driving gear 153 on the left, the missing gear 155 meshes with the driving gear 153 on the right, thereby driving the driving gear 153 on the right to drive the screw rod I 151 to reverse, so that the connecting plate 9 on the right front side drives the mounting ring 10 on the front side to move backward and reset.By repeating the above operation, the metal wire to be sheared can be pulled forward to an appropriate length. When the metal wire to be sheared is pulled forward to an appropriate length, the telescopic rod of the electric push rod 81 is controlled to extend to push the pressure plate 82 downward to press and fix the metal wire on the inverted U-shaped support plate 6. Since the front and rear sides of the metal wire shearing area are pressed and fixed by the pressure plate 82, the subsequent contact wheel 13 moves forward closely against the metal wire and can straighten the shearing area of ​​the metal wire to ensure the flatness of the incision and product quality after the wire is sheared; after the mounting ring 10 on the front side drives the clamping block 11 to move backward and reset, the screw motor 4 is controlled to work to drive the T-shaped lifting plate 3 to drive the electric gas shear 5 to move downward, and then the metal wire is sheared by the electric gas shear 5. After the shearing is completed, the screw motor 4 is controlled to drive the T-shaped lifting plate 3 to drive the electric gas shear 5 to move upward and reset, and the telescopic rod of the electric push rod 81 is controlled to shorten to pull the pressure plate 82 upward to loosen the metal wire.

[0032] See also Figure 7-Figure 8 The inverted U-shaped support plate 6 on the front side is provided with a discharge mechanism, which includes two left and right rotating shafts 161 rotatably connected to the top of the inverted U-shaped support plate 6 on the front side, and a driving wheel 162 is connected to the upper part of the rotating shaft 161. The driving wheel 162 is located on the upper side of the inverted U-shaped support plate 6. A rubber wheel is sleeved on the outer wall of the driving wheel 162. Anti-skid grooves are spaced circumferentially on the outer wall of the rubber wheel. The rubber wheel and the anti-skid groove can increase the friction between the driving wheel 162 and the metal wire to prevent slipping, so that the cut wire can be pushed forward from the inverted U-shaped support plate 6 on the front side more smoothly. A trigger assembly is provided on the inverted U-shaped support plate 6, and the trigger assembly includes two left and right magnets 163 that are slidably connected to the front inverted U-shaped support plate 6 through a guide rod and can move up and down. The front pressure plate 82 moves down and can contact the magnet 163. The front pressure plate 82 is made of iron. A tension spring 164 is connected between the magnet 163 and the front inverted U-shaped support plate 6. A winding wheel 165 is connected to the lower part of the rotating shaft 161. A pull rope 166 is wound on the winding wheel 165. The two pull ropes 166 are respectively connected to the two magnets 163. A spiral spring 167 is connected between the rotating shaft 161 and the inverted U-shaped support plate 6.

[0033] When the front pressure plate 82 moves down to contact the magnet 163, the front pressure plate 82 continues to move down to push the magnet 163 down. When the front pressure plate 82 moves up, it drives the magnet 163 up, thereby pulling the pull rope 166 upward to make the winding wheel 165 drive the rotating shaft 161 to rotate, and the spiral spring 167 is compressed, so that the push wheel 162 rotates to push the cut wire forward from the front inverted U-shaped support plate 6 to achieve automatic unloading. The magnet 163 moves up to stretch the tension spring 164. When the magnet 163 moves up to the limit, the magnet 163 cannot move up further, so the front pressure plate 82 continues to move up and disengages from the magnet 163. Then, under the reset action of the tension spring 164, the magnet 163 is pulled down to reset. Under the reset action of the spiral spring 167, the winding wheel 165 reverses and retracts the pull rope 166.

[0034] See also Fig. 9 A connecting plate 17 is connected to the rear side of the top of the base 1, and the connecting plate 17 is located between the middle and rear inverted U-shaped support plates 6. An annular brush 18 is connected to the top of the connecting plate 17. In the process of the metal wire moving forward, the metal wire passes through the annular brush 18. The metal wire can be cleaned by the annular brush 18, thereby achieving the effect of cleaning the metal wire before shearing. The cleaned metal wire can obtain a smoother and smoother incision when shearing, which helps to improve the overall quality of the product.

[0035] The above only expresses the preferred embodiments of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications, improvements and substitutions can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A wire shearing device for a metal wire drawing machine, comprising a base (1), an inverted U-shaped mounting plate (2) connected to the top rear side of the base (1), a T-shaped lifting plate (3) slidably connected inside the inverted U-shaped mounting plate (2), a screw motor (4) provided on the inner wall of the inverted U-shaped mounting plate (2), a screw of the screw motor (4) being threadedly connected to the T-shaped lifting plate (3), an electric gas shear (5) being installed on the bottom front side of the T-shaped lifting plate (3), three inverted U-shaped support plates (6) for supporting wire rods being spaced apart from front to back at the top of the base (1), characterized in that: A mounting frame (7) is mounted on the top of the inverted U-shaped mounting plate (2), and a pressing assembly (8) for pressing and fixing the wire on the inverted U-shaped support plate (6) is provided on the mounting frame (7). Two front and rear groups of connecting plates (9) that can move forward and backward are provided on the top of the base (1), and two connecting plates (9) form a group, and the two connecting plates (9) in each group are symmetrically arranged. The tops of the two groups of connecting plates (9) are connected to mounting rings (10), and the mounting rings (10) are located between the front and middle inverted U-shaped support plates (6). The front mounting ring (10) is provided with two left and right connecting plates that can move closer to and farther from each other. A clamping block (11), the clamping portion of the clamping block (11) is arc-shaped, four movable blocks (12) that can move closer to or farther from each other are evenly spaced in the circumferential direction in the rear mounting ring (10), the four movable blocks (12) being connected to each other on one side thereof, and a contact wheel (13) being connected to each other, a pushing component being provided between the base (1) and the mounting ring (10), the pushing component being able to push the two clamping blocks (11) closer to or farther from each other, and the four movable blocks (12) closer to or farther from each other, and a driving component being provided on the base (1) for driving the connecting plate (9) to move forward and backward; The pushing assembly comprises two front and rear fixing plates (140) connected to the top of the base (1); a spline shaft (141) is rotatably connected to the fixing plate (140) on the rear side; a stepper motor (142) is installed on the fixing plate (140) on the front side; an output shaft of the stepper motor (142) is connected to the spline shaft (141); two front and rear spur gears (145) are key-connected to the spline shaft (141); the front sides of the two spur gears (145) are both connected to spline sleeves (144); the spline sleeves (144) are sleeved on the spline shaft (141); the outer walls of the two spline sleeves (144) are both rotatably connected to connecting blocks (143); the two connecting blocks (143) are respectively fixedly connected to the outer walls of the two mounting rings (10); the rear ends of the two mounting rings (10) are connected to the outer walls of the two mounting rings (10); The two sides are rotatably connected with a perforated disc (146), the outer walls of the two perforated discs (146) are connected with a gear ring (147), the two gear rings (147) are respectively meshed with two spur gears (145), the perforated discs (146) are evenly spaced along the circumferential direction with inclined grooves (148), the front perforated disc (146) is provided with two inclined grooves (148), the rear perforated disc (146) is provided with four inclined grooves (148), the inclined grooves (148) are slidably connected with a push rod (149), the two push rods (149) on the front perforated disc (146) are respectively fixedly connected to the two clamping blocks (11), and the four push rods (149) on the rear perforated disc (146) are respectively fixedly connected to the four movable blocks (12); The driving assembly comprises a screw rod I (151) and a screw rod II (152) which are rotatably connected to the base (1). The screw rod II (152) is located on the left side of the screw rod I (151). The screw rod I (151) is threadedly connected to a connecting plate (9) on the right front side. The connecting plate (9) on the right rear side is rotatably and slidably connected to the screw rod I (151). The screw rod II (152) is threadedly connected to a connecting plate (9) on the left rear side. The connecting plate (9) on the right front side is rotatably and slidably connected to the screw rod II (152). The front sides of the screw rods I (151) and the screw rod II (152) are both connected to a driving gear (153). A driving motor (154) is installed on the front side of the base (1). A missing gear (155) is connected to the output shaft of the driving motor (154). The missing gear (155) can be rotated to mesh with the driving gear (153).

2. A wire cutting device for a metal wire drawing machine according to claim 1, characterized in that: The pressing assembly (8) comprises two front and rear electric push rods (81) mounted on the mounting frame (7), the telescopic rods of the two electric push rods (81) are connected to a pressing plate (82), and the two pressing plates (82) are respectively located on the upper side of the front and rear inverted U-shaped support plates (6).

3. A wire cutting device for a metal wire drawing machine according to claim 1, characterized in that: The top of the inverted U-shaped support plate (6) is provided with an arc-shaped groove (61) for accommodating the wire.

4. A wire cutting device for a metal wire drawing machine according to claim 2, characterized in that: The front inverted U-shaped support plate (6) is provided with a discharge mechanism, which comprises two left and right push wheels (162) rotatably connected to the top of the front inverted U-shaped support plate (6) via a rotating shaft (161). The front inverted U-shaped support plate (6) is provided with a trigger assembly. When the front pressure plate (82) moves upward, the trigger assembly is driven to work. The operation of the trigger assembly drives the rotating shaft (161) to drive the push wheel (162) to rotate, so as to push the cut wire material forward from the front inverted U-shaped support plate (6).

5. A wire cutting device for a metal wire drawing machine according to claim 4, characterized in that: The trigger assembly comprises two left and right magnets (163) arranged on the front inverted U-shaped support plate (6) and capable of moving up and down. The front pressure plate (82) moves downward and can contact the magnet (163). The front pressure plate (82) is made of iron. A tension spring (164) is connected between the magnet (163) and the front inverted U-shaped support plate (6). The lower part of the rotating shaft (161) is connected to a winding wheel (165). A pull rope (166) is wound around the winding wheel (165). The two pull ropes (166) are respectively connected to the two magnets (163). A spiral spring (167) is connected between the rotating shaft (161) and the inverted U-shaped support plate (6).

6. A wire cutting device for a metal wire drawing machine according to claim 1, characterized in that: A connecting plate (17) is connected to the rear side of the top of the base (1), and an annular brush (18) for cleaning the wire is connected to the top of the connecting plate (17).

7. A wire cutting device for a metal wire drawing machine according to claim 1, characterized in that: The clamping part of the clamping block (11) is connected with an arc-shaped rubber block (19).

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