Automatic cutting device for fastening screws

Abstract

The invention relates to the technical field of fastening screw machining, in particular to an automatic fastening screw cutting device which comprises a workbench and an electric driving roller installed on the workbench and used for driving a wire to move, and an elastic pressing roller located over the electric driving roller is installed at the top of the workbench. Firstly, an electric driving roller is started to rotate forwards to drive a wire to move rightwards, the electric driving roller drives a disc to rotate forwards, the disc rotates forwards to drive a connecting rod to rotate forwards through a movable block, the connecting rod rotates forwards to drive a driving rod to move leftwards and rightwards, and the driving rod drives a cutter to move leftwards and rightwards through a sliding seat and an n-shaped frame; meanwhile, the cutter moves rightwards and downwards to cut the wire rod, then when the cutter moves leftwards and resets, the wire rod continues to move rightwards to the cutting position, the operation is repeated, continuous equal-distance cutting can be carried out continuously along with the rightward movement of the wire rod, and it is not needed to stop the machine to wait for the wire rod to be conveyed to the cutting position to be cut; therefore, the overall cutting efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of fastening screw processing, and particularly relates to an automatic material cutting device for fastening screws. Background Art

[0002] In the processing of fastening screws, multiple processes are required, and the material cutting process plays a crucial role, which is directly related to the dimensional accuracy of the screws, the material utilization rate, and the smooth progress of subsequent processing operations.

[0003] Chinese Patent No. CN114632895B discloses a raw material cutting device and its processing technology for screw processing, including a workbench. A fixed groove is provided on the top outer wall of the workbench, and support legs are provided at the four corners of the bottom outer wall of the workbench. The bottom inner wall of the fixed groove is of a hollow structure. A first communication hole is provided on the outer wall of the workbench near the bottom. The inner wall of the first communication hole is slidably connected with equally spaced connecting pads. Activity frames are provided on the top outer walls of several connecting pads. A second communication hole is provided on one side of the top outer wall of the workbench, and the activity frame is slidably connected to the inner wall of the second communication hole. A cylinder is installed on the activity frame, and the movable end of the cylinder is connected with a cutting assembly. The same inserting rod is inserted into several cutting assemblies. Although the above patent can be used to cut the wire rod for making fastening screws, since the cutting assembly often relies on a single cutting assembly or multiple independent cutting assemblies to work sequentially, each time a cut is made, the cutting assembly needs to stop and wait for the wire rod to continue to be conveyed to the cutting position for cutting, and true continuous cutting cannot be achieved, affecting the overall material cutting efficiency.

[0004] The present invention aims to solve the problems existing in the above patent. For this purpose, an automatic material cutting device for fastening screws is proposed, which can perform continuous cutting following the movement of the wire rod without stopping, improving the overall material cutting efficiency. Summary of the Invention

[0005] In order to overcome the disadvantages that although the above patent can be used to cut the wire rod for making fastening screws, since the cutting assembly often relies on a single cutting assembly or multiple independent cutting assemblies to work sequentially, each time a cut is made, the cutting assembly needs to stop and wait for the wire rod to continue to be conveyed to the cutting position for cutting, and true continuous cutting cannot be achieved, affecting the overall material cutting efficiency, the present invention provides an automatic material cutting device for fastening screws, which can perform continuous cutting following the movement of the wire rod without stopping, improving the overall material cutting efficiency.

[0006] The present invention is achieved through the following technical solutions: An automatic cutting device for fastening screws, comprising a workbench and an electric driving roller installed on the workbench for driving the wire to move. An elastic pressing roller is installed above the electric driving roller at the top of the workbench. A sliding seat is slidably penetrated on the workbench, and an inclined blanking plate is fixedly connected to the sliding seat. It also includes a driving rod fixedly penetrated on the sliding seat. A disc is fixedly sleeved at the end of the electric driving roller. A slotted hole is opened at an eccentric position of the disc. A movable block is slidably connected in the slotted hole. A connecting rod is rotatably connected to the movable block, and the end of the connecting rod is rotatably connected to the end of the driving rod. An adjusting screw is rotatably connected to the disc in the slotted hole, and the adjusting screw is threadedly connected to the movable block. A cutting assembly is arranged on the sliding seat for cutting the wire. The electric driving roller is used to drive the disc to rotate, the disc drives the movable block to rotate, the movable block drives the driving rod to move left and right through the connecting rod, and the driving rod drives the cutting assembly to move left and right through the sliding seat, so that the cutting assembly can continuously cut along with the movement of the wire. A grinding assembly is arranged on the sliding seat for grinding the edge of the end of the cut wire.

[0007] Further explanation, the cutting assembly includes an n-shaped frame fixedly connected to the sliding seat. A cutting knife is vertically slidably connected inside the n-shaped frame for cutting the wire. A reset spring is symmetrically connected between the cutting knife and the sliding seat. An L-shaped rod is fixedly connected to the cutting knife, and the L-shaped rod is slidably connected to the n-shaped frame. A triggering assembly is arranged on the workbench for driving the L-shaped rod to move downward.

[0008] Further explanation, the triggering assembly includes grooved seats symmetrically fixedly connected to the workbench. The groove of the grooved seat is composed of a straight section and a V-shaped section. The grooved seat corresponds to the L-shaped rod for driving the L-shaped rod to move downward. A rotating shaft is rotatably penetrated on the grooved seat. A one-way plate in contact with the inner top of the grooved seat is fixedly connected to the end of the rotating shaft to limit and guide the movement of the L-shaped rod. A torsion spring is connected between the rotating shaft and the grooved seat.

[0009] Further explanation, the grinding assembly includes an annular plate fixedly penetrated on the sliding seat. Outer gear rings are symmetrically rotatably connected inside the annular plate. Mounting plates are symmetrically fixedly connected between the outer gear rings. A steel brush plate is slidably penetrated on the mounting plate for grinding the edge of the end of the wire. Buffer springs are symmetrically connected between the steel brush plate and the mounting plate. A housing is fixedly connected to the annular plate. An electric rotating rod is rotatably penetrated between the two sides of the housing. Straight gears meshing with the outer gear rings are symmetrically fixedly sleeved on the electric rotating rod. A dust suction head is fixedly penetrated on the annular plate for sucking away the dust generated during the grinding process. A connecting pipe is connected to the dust suction head, and the discharging end of the connecting pipe is located outside the annular plate. A conveying assembly is arranged between the annular plate and the sliding seat for driving the cut wire to move to the right.

[0010] Further explanation, the conveying assembly includes guide rollers slidably inserted through both sides of the annular plate. A connecting spring I is connected between the guide rollers and the annular plate. A conveying roller is rotatably inserted through the sliding seat and is located directly below the guide rollers. The conveying roller is located on the right side of the n-shaped frame. The conveying rollers are driven and connected by a synchronous belt assembly. A stepping motor is installed on the sliding seat, and the end of the output shaft of the stepping motor is fixedly connected to the end of one of the conveying rollers.

[0011] Further explanation, the automatic cutting device for fastening screws further includes a straightening assembly. The straightening assembly includes a U-shaped seat fixedly inserted through the workbench. L-shaped sliding rods are symmetrically and slidably inserted through the U-shaped seat. Connecting springs II are symmetrically connected between the L-shaped sliding rods and the U-shaped seat. A straightening roller I is fixedly sleeved on the L-shaped sliding rods for straightening the wire. A straightening roller II is rotatably connected inside the U-shaped seat. A U-shaped frame is slidably inserted through both sides of the U-shaped seat. A straightening roller III is rotatably sleeved on the U-shaped frame and is located directly above the straightening roller II. A driving plate is fixedly connected to the U-shaped seat. The driving plate is in an inverted V shape and contacts the L-shaped sliding rods for driving the L-shaped sliding rods to move. An electric push rod is installed on the U-shaped seat, and the end of the telescopic rod of the electric push rod is fixedly connected to the U-shaped seat.

[0012] Further explanation, the supporting assembly includes fixed seats fixedly connected to the workbench. The fixed seats are located on both sides of the U-shaped seat. V-shaped support plates are installed on the fixed seats, and the ends of the V-shaped support plates are fixedly connected to the U-shaped seat for supporting and guiding the wire.

[0013] Further explanation, the automatic cutting device for fastening screws further includes a sponge seat embedded and fixedly connected to the sliding seat. The sponge seat is located directly below the cutting knife for removing the debris on the cutting knife.

[0014] The beneficial effects of the present invention are as follows: 1. First, move the wire between the electric driving roller and the sliding seat. Start the electric driving roller to rotate forward to drive the wire to move to the right. The electric driving roller drives the disc to rotate forward. The forward rotation of the disc drives the connecting rod to rotate forward through the movable block. The forward rotation of the connecting rod drives the driving rod to move left and right. The driving rod drives the cutting knife to move left and right through the sliding seat and the n-shaped frame. The cutting knife moves to the right and moves synchronously with the wire to the right. At the same time, the cutting knife moves to the right and moves downward to cut the wire. Then when the cutting knife moves left to reset, the wire continues to move to the right to the cutting position. Repeating this way, continuous equidistant cutting can be carried out following the rightward movement of the wire, so that there is no need to stop the machine and wait for the wire to be conveyed to the cutting position for cutting, thereby improving the overall cutting efficiency.

[0015] 2. Under the action of the steel brush plate, whenever the cut wire moves to the right, the steel brush plate can polish and remove the burrs at the edge of the end of the cut wire, preventing the burrs at the edge of the end of the cut wire from affecting the subsequent processing, thus facilitating the subsequent processing of the wire.

[0016] 3. Under the action of straightening roller I, straightening roller II and straightening roller III, whenever the wire moves to the right, straightening roller I, straightening roller II and straightening roller III can straighten the wire. The straightened wire moves to the right and is cut, which can prevent the wire from being cut in a bent state and affecting the cutting accuracy, thereby improving the cutting accuracy of the wire. Description of the Drawings

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the sliding seat and the blanking plate of the present invention.

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the disc, connecting rod and driving rod of the present invention.

[0020] Figure 4 It is a three-dimensional structural schematic diagram of the cutting assembly of the present invention.

[0021] Figure 5 It is a three-dimensional structural schematic diagram of the rotating shaft, one-way plate and torsion spring of the present invention.

[0022] Figure 6 It is a three-dimensional structural schematic diagram of the grinding assembly of the present invention.

[0023] Figure 7 It is a sectional structural schematic diagram of the annular plate of the present invention.

[0024] Figure 8 It is a three-dimensional structural schematic diagram of the straightening assembly of the present invention.

[0025] Figure 9 It is a sectional structural schematic diagram of the return-shaped seat of the present invention.

[0026] Figure 10 It is a three-dimensional structural schematic diagram of the supporting roller and the movable roller of the present invention.

[0027] Figure 11 It is a three-dimensional structural schematic diagram of the sponge seat of the present invention.

[0028] Names of the reference numerals in the figure: 1, workbench; 2, electric drive roller; 3, elastic pressing roller; 4, sliding seat; 5, blanking plate; 6, disc; 7, linear hole; 8, movable block; 9, adjusting screw; 10, connecting rod; 11, driving rod; 12, n-shaped frame; 121, cutter; 122, return spring; 123, L-shaped rod; 124, slotted seat; 125, rotating shaft; 126, one-way plate; 127, torsion spring; 13, annular plate; 131, steel brush plate; 132, conveying roller; 1321, stepping motor; 133, guiding roller; 134, connecting spring I; 135, external gear ring; 136, mounting plate; 137, buffer spring; 138, housing; 139, electric rotating rod; 1310, spur gear; 1311, communicating pipe; 1312, dust suction head; 14, U-shaped seat; 142, straightening roller I; 143, fixed seat; 144, V-shaped support plate; 145, L-shaped sliding rod; 146, connecting spring II; 147, straightening roller II; 148, U-shaped frame; 149, straightening roller III; 1410, driving plate; 1411, electric push rod; 15, sponge seat. Detailed implementation manners

[0029] First of all, it should be pointed out that in the embodiments described differently, the same components are provided with the same reference numerals or the same component names. Among them, the disclosed content included in the whole specification can be meaningfully applied to the same components with the same reference numerals or the same component names. The positional descriptions selected in the specification, such as upper, lower, lateral, etc., also refer to the directly described and illustrated drawings and are meaningfully applied to the new positions when the positions change.

[0030] Example: An automatic cutting device for fastening screws, please refer to Figures 1-7As shown in the figure, it includes a workbench 1 and an electric drive roller 2 installed on the left side of the workbench 1. The electric drive roller 2 can drive the wire to move to the right. An elastic pressing roller 3 is installed on the left side of the top of the workbench 1. The elastic pressing roller 3 is located directly above the electric drive roller 2. A sliding seat 4 is slidably connected through the right side of the workbench 1. A blanking plate 5 is fixedly connected to the upper right part of the sliding seat 4. The blanking plate 5 is inclined. It also includes a disc 6, a movable block 8, an adjusting screw 9, a connecting rod 10, a driving rod 11, a cutting assembly and a grinding assembly. A driving rod 11 is fixedly connected through the lower part of the sliding seat 4. Discs 6 are fixedly sleeved at both the front and rear ends of the electric drive roller 2. One-word holes 7 are opened at the eccentric positions on the left sides of the front and rear discs 6. A movable block 8 is slidably connected in the one-word hole 7. Connecting rods 10 are rotatably connected to the mutually remote sides of the front and rear movable blocks 8. The right ends of the front and rear connecting rods 10 are respectively rotatably connected to the front and rear ends of the driving rod 11. An adjusting screw 9 is rotatably connected to the middle parts of the left sides of the front and rear discs 6. The adjusting screw 9 is located in the one-word hole 7. The adjusting screw 9 is threadedly connected to the movable block 8. A cutting assembly is arranged on the sliding seat 4. When the cutting assembly operates, the cutting assembly can cut the wire. The electric drive roller 2 is used to drive the disc 6 to rotate. The disc 6 drives the movable block 8 to rotate. The movable block 8 drives the driving rod 11 to move left and right through the connecting rod 10. The driving rod 11 drives the cutting assembly to move left and right through the sliding seat 4, so that the cutting assembly can move continuously following the wire for cutting. A grinding assembly is arranged on the sliding seat 4. When the grinding assembly operates, the grinding assembly can grind the edge of the end of the cut wire.

[0031] Please refer to Figures 3-5As shown, the cutting assembly includes an n-shaped frame 12, a cutting knife 121, a return spring 122, an L-shaped rod 123 and a trigger assembly. On the left side of the top of the sliding seat 4, an n-shaped frame 12 is fixedly connected. Inside the n-shaped frame 12, a cutting knife 121 is vertically slidably connected. When the cutting knife 121 moves downward, the cutting knife 121 can cut the wire. Between the upper part of the cutting knife 121 and the top of the sliding seat 4, return springs 122 are symmetrically connected front and back. On the upper parts of the front and back sides of the cutting knife 121, L-shaped rods 123 are fixedly connected respectively. The L-shaped rods 123 on the front and back sides are respectively slidably connected with the front and back sides of the n-shaped frame 12. A trigger assembly is arranged on the right side of the workbench 1. When the L-shaped rod 123 contacts the trigger assembly, the trigger assembly can drive the L-shaped rod 123 to move downward; the trigger assembly includes a slotted seat 124, a rotating shaft 125, a one-way plate 126 and a torsion spring 127. On the right side of the workbench 1, slotted seats 124 are symmetrically fixedly connected front and back. The slot of the slotted seat 124 consists of a straight section and a V-shaped section. The slotted seat 124 corresponds to the L-shaped rod 123. When the L-shaped rod 123 moves and contacts the V-shaped section of the slotted seat 124, the slotted seat 124 can drive the L-shaped rod 123 to move downward. On the left side of the slotted seat 124, a rotating shaft 125 is rotatably inserted. On the end parts of the rotating shafts 125 on the front and back sides close to each other, one-way plates 126 are fixedly connected. The top of the one-way plate 126 contacts the inner top of the slotted seat 124. The one-way plate 126 can limit and guide the movement of the L-shaped rod 123. A torsion spring 127 is connected between the rotating shaft 125 and the slotted seat 124.

[0032] Please refer to Figure 6 and Figure 7As shown, the grinding assembly includes an annular plate 13, a steel brush plate 131, a conveying assembly, an outer gear ring 135, a mounting plate 136, a buffer spring 137, a housing 138, an electric rotating rod 139, a spur gear 1310, a connecting pipe 1311 and a dust collector 1312. The right side of the sliding seat 4 is fixedly connected with the annular plate 13, and the inner side of the annular plate 13 is symmetrically connected to the outer gear ring 135. The mounting plates 136 are symmetrically fixed between the outer gear rings 135 on the left and right sides, and the steel brush plates 131 are slidably connected to the mounting plates 136 on the upper and lower sides. When the steel brush plate 131 rotates, the steel brush plate 131 can grind the edge of the wire end. The upper and lower steel brush plates 131 are symmetrically connected to the upper and lower mounting plates 136 on one side and the other side with buffer springs 137. A shell 138 is fixedly connected to the middle of the outer bottom of the annular plate 13. An electric rotating rod 139 is rotatably connected between the left and right sides of the shell 138. A spur gear 1310 is fixedly mounted on the electric rotating rod 139 on the left and right sides. The spur gears 1310 on the left and right sides are respectively meshed with the outer gear rings 135 on the left and right sides. A dust suction head 1312 is fixedly connected in the middle of the top of 13, and the dust suction head 1312 can remove the dust generated during the grinding process. A connecting pipe 1311 is connected to the top of the dust suction head 1312, and the discharge end of the connecting pipe 1311 is located outside the annular plate 13. A conveying assembly is arranged between the annular plate 13 and the sliding seat 4. When the conveying assembly is in operation, the conveying assembly can drive the cut wire to move to the right; the conveying assembly includes a conveying roller 132, a stepping motor 1321, a guide roller 133 and a connecting spring Ⅰ134. The left and right sides of the annular plate 13 Guide rollers 133 are slidably connected to the upper parts of both sides, and a connecting spring Ⅰ134 is connected between the lower part of the guide roller 133 and the upper part of the annular plate 13. Conveying rollers 132 are rotatably connected to the left and right sides of the sliding seat 4. The left conveying roller 132 is located on the right side of the n-shaped frame 12, and the conveying roller 132 is located directly below the guide roller 133. The front sides of the left and right conveying rollers 132 are connected by a synchronous belt assembly. A stepping motor 1321 is installed on the front side of the sliding seat 4, and the output shaft end of the stepping motor 1321 is fixedly connected to the front end of the left conveying roller 132.

[0033] First, twist the adjusting screw rod 9 to rotate forward and backward alternately. The adjusting screw rod 9 drives the movable block 8 to move left and right. The movable block 8 drives the connecting rod 10 to move left and right. The connecting rod 10 drives the driving rod 11 to move left and right. The driving rod 11 drives the sliding seat 4 to move left and right. The sliding seat 4 drives the cutting knife 121 to move left and right through the n-shaped frame 12. When the cutting knife 121 moves left and right to the position required for the cutting length of the wire, stop twisting the adjusting screw rod 9. The movable block 8 stops moving left and right, and the sliding seat 4 also stops driving the cutting knife 121 to move through the n-shaped frame 12. Then, place the wire on the electric driving roller 2. The elastic pressing roller 3 presses the wire tightly on the electric driving roller 2, and pushes the wire to move to the right so that the cutting position is directly below the cutting knife 121. The wire is on the sliding seat 4. Then, start the electric driving roller 2 to rotate forward. The forward rotation of the electric driving roller 2 drives the wire to move to the right through the elastic pressing roller 3. At the same time, the forward rotation of the electric driving roller 2 also drives the disc 6 to rotate forward. The forward rotation of the disc 6 drives the movable block 8 to rotate forward. The forward rotation of the movable block 8 drives the connecting rod 10 to rotate forward. The forward rotation of the connecting rod 10 first drives the driving rod 11 to move to the right. The driving rod 11 moving to the right drives the sliding seat 4 to move to the right. The sliding seat 4 moving to the right drives the cutting knife 121 to move to the right through the n-shaped frame 12. The cutting knife 121 moves to the right and moves to the right synchronously with the wire. At the same time, the cutting knife 121 moving to the right drives the L-shaped rod 123 to move to the right. The L-shaped rod 123 moves to the right into the slotted seat 124. The L-shaped rod 123 moving to the right contacts the one-way plate 126 and is limited and guided. The one-way plate 126 causes the L-shaped rod 123 to move downward into the v-shaped section of the slotted seat 124. The slotted seat 124 drives the L-shaped rod 123 moving to the right to move downward. The downward movement of the L-shaped rod 123 drives the cutting knife 121 to move downward. The return spring 122 is compressed. The cutting knife 121 moves downward and to the right to cut the wire, and thus completes the cutting process of the wire. The cut wire is on the sliding seat 4. As the L-shaped rod 123 continues to move to the right, the L-shaped rod 123 disengages from the v-shaped section of the slotted seat 124. Due to the action of the return spring 122, the cutting knife 121 moves upward to reset and drives the L-shaped rod 123 to move upward to reset. The L-shaped rod 123 resets to the straight-line section position of the slotted seat 124. Then, the connecting rod 10 continues to rotate forward and drives the driving rod 11 to move to the left to reset. The driving rod 11 drives the sliding seat 4 to move to the left to reset. The sliding seat 4 drives the cutting knife 121 to move to the left through the n-shaped frame 12. The cutting knife 121 moving to the left drives the L-shaped rod 123 to move to the left to reset. The L-shaped rod 123 moving to the left contacts the one-way plate 126. The L-shaped rod 123 pushes the one-way plate 126 to swing downward. The downward swing of the one-way plate 126 drives the rotating shaft 125 to rotate reversely. The torsion spring 127 is compressed. The L-shaped rod 123 continues to move to the left and slides over the one-way plate 126 to reset. During the process of the sliding seat 4 moving to the left to reset, the electric driving roller 2 continues to drive the wire to move to the right. The wire moving to the right pushes the cut wire to the right. The cut wire moves into the blanking plate 5. The blanking plate 5 discharges the cut wire for collection.Subsequently, the connecting rod 10 continues to rotate forward to drive the driving rod 11 to move to the right, so that the cutter 121 moves to the right again and moves downward to cut the wire. Repeating this process, continuous equidistant cutting can be carried out following the rightward movement of the wire, without the need to stop the machine and wait for the wire to be transported to the cutting position for cutting, thereby improving the overall cutting efficiency. When the entire wire is cut into multiple required lengths, the electric drive roller 2 is turned off. The electric drive roller 2 stops driving the disc 6 to rotate forward. The disc 6 stops driving the movable block 8 to rotate forward. The movable block 8 stops driving the driving rod 11 to move left and right through the connecting rod 10. The driving rod 11 stops driving the sliding seat 4 to move left and right. The cutter 121 also stops moving left and right, and subsequent processing of the cut wire can be carried out; Initially, the connecting pipe 1311 is externally connected to a vacuum cleaner. When the wire moves onto the sliding seat 4, the wire passes through between the left conveying roller 132 and the guiding roller 133, and the wire passes through between the annular plate 13 and the upper and lower steel brush plates 131. The wire contacts the upper and lower steel brush plates 131. Then, when the wire is cut, the stepping motor 1321 is started to rotate forward to drive the left conveying roller 132 to rotate forward. The forward rotation of the left conveying roller 132 drives the right conveying roller 132 to rotate forward through the synchronous belt assembly. The forward rotation of the conveying roller 132 drives the cut wire to move to the right. Due to the action of the connecting spring I 134, the guiding roller 133 can contact the wire more closely for guiding. At the same time, the electric rotating rod 139 is started to drive the spur gear 1310 to rotate. The rotation of the spur gear 1310 drives the external gear ring 135 to rotate. The external gear ring 135 drives the steel brush plate 131 to rotate through the mounting plate 136. The rotation of the steel brush plate 131 polishes the cut wire, that is, polishes the end edge of the wire cutting position, removing the burrs at the end edge. Due to the action of the buffer spring 137, the steel brush plate 131 can contact the wire more closely for polishing, thereby improving the polishing effect. At the same time, the externally connected vacuum cleaner is started. The vacuum cleaner sucks the dust generated during the polishing process into the connecting pipe 1311 through the suction head 1312. The dust in the connecting pipe 1311 is sucked into the vacuum cleaner for collection. Subsequently, the wire after the end burrs are removed continues to be driven by the conveying roller 132 to move to the right and is transported into the blanking plate 5. When the wire moves to the right and disengages from the conveying roller 132, the wire drops from the blanking plate 5 for collection. Repeating this process, the burrs at the end edge of the cut wire can be continuously removed. When all the wires are cut, the externally connected vacuum cleaner is turned off, and then the stepping motor 1321 and the electric rotating rod 139 are turned off. The conveying roller 132 stops rotating forward. The electric rotating rod 139 stops driving the spur gear 1310 to rotate. The spur gear 1310 stops driving the external gear ring 135 to rotate. The external gear ring 135 stops driving the steel brush plate 131 to rotate through the mounting plate 136. In this way, it can be prevented that the burrs at the end edge of the cut wire affect the subsequent processing, thus facilitating the subsequent processing of the wire.

[0034] Please refer toFigures 8-10 As shown, the automatic wire cutting device for fastening screws further includes a straightening component installed on the workbench 1. The straightening component includes a rectangular seat 14, straightening roller I 142, a support component, L-shaped slide bar 145, connecting spring II 146, straightening roller II 147, rectangular frame 148, straightening roller III 149, driving plate 1410, and electric push rod 1411. The rectangular seat 14 is fixedly inserted through the left side of the workbench 1. The L-shaped slide bars 145 are symmetrically and slidably inserted through the front and rear sides of the right side of the rectangular seat 14. Between the mutually approaching sides of the front and rear L-shaped slide bars 145 and the inner side of the rectangular seat 14, connecting springs II 146 are symmetrically connected up and down. The lower parts of the front and rear L-shaped slide bars 145 are fixedly sleeved with the straightening roller I 142. When the wire moves, the straightening roller I 142 can straighten the wire. The lower part of the inner side of the rectangular seat 14 is rotatably connected with the straightening roller II 147. The rectangular frame 148 is slidably inserted through between the front and rear sides of the rectangular seat 14. The lower part of the rectangular frame 148 is rotatably sleeved with the straightening roller III 149. The straightening roller III 149 is located directly above the straightening roller II 147. The upper part of the right side of the rectangular seat 14 is fixedly connected with the driving plate 1410. The driving plate 1410 is in an inverted V shape. The inner side of the driving plate 1410 contacts the upper parts of the front and rear L-shaped slide bars 145. When the driving plate 1410 moves downward, the driving plate 1410 can drive the L-shaped slide bar 145 to move. The left side of the outer top of the rectangular seat 14 is equipped with an electric push rod 1411. The end of the telescopic rod of the electric push rod 1411 is fixedly connected with the inner top of the rectangular seat 14; the support component includes a fixed seat 143 and a V-shaped support plate 144. Two fixed seats 143 are fixedly connected to the top left of the workbench 1. The fixed seats 143 are located on both sides of the rectangular seat 14. V-shaped support plates 144 are installed on the mutually approaching sides of the left and right fixed seats 143. The mutually approaching ends of the left and right V-shaped support plates 144 are respectively fixedly connected to the lower parts of the left and right sides of the rectangular seat 14. When the wire moves for cutting, the V-shaped support plate 144 can support and guide the wire.

[0035] When it is necessary to place the wire, first pass the wire through the two straightening rollers Ⅰ142, straightening roller Ⅱ147 and straightening roller Ⅲ149 and place it on the electric drive roller 2. The wire contacts the straightening roller Ⅱ147. At the same time, the V-shaped support plate 144 supports and positions the wire, which can prevent the wire from sagging and bending. Subsequently, start the electric push rod 1411. The telescopic rod of the electric push rod 1411 shortens and drives the return frame 148 to move downward. The downward movement of the return frame 148 drives the drive plate 1410 and the straightening roller Ⅲ149 to move downward. The downward movement of the drive plate 1410 drives the front and rear L-shaped slide bars 145 to move towards each other. The connecting spring Ⅱ146 is compressed. The L-shaped slide bars 145 drive the front and rear straightening rollers Ⅰ142 to move towards each other. The front and rear straightening rollers Ⅰ142 move towards each other and contact the wire. At the same time, the downward movement of the straightening roller Ⅲ149 also contacts the wire. Turn off the electric push rod 1411. When the electric drive roller 2 rotates forward to drive the wire to move to the right for cutting, the straightening rollers Ⅰ142, straightening roller Ⅱ147 and straightening roller Ⅲ149 straighten the wire moving to the right to prevent the wire from being bent and cut. When all the wires are cut, start the electric push rod 1411 to drive the return frame 148 to move upward and reset. The upward movement of the return frame 148 drives the straightening roller Ⅲ149 and the drive plate 1410 to move upward and reset. The straightening roller Ⅲ149 resets and disengages from the wire. The drive plate 1410 resets and stops limiting the L-shaped slide bar 145. Due to the action of the connecting spring Ⅱ146, the front and rear L-shaped slide bars 145 move away from each other and reset. The reset of the L-shaped slide bar 145 drives the straightening roller Ⅰ142 to move away from each other and reset. Turn off the electric push rod 1411. In this way, it can prevent the wire from being cut in a bent state, which affects the cutting accuracy, thereby improving the cutting accuracy of the wire.

[0036] Please refer to Figure 11 As shown, the fastening screw automatic cutting device further includes a sponge seat 15. The sponge seat 15 is fixedly connected to the left side of the sliding seat 4 in an embedded manner. The sponge seat 15 is located directly below the cutting knife 121. When the cutting knife 121 contacts the sponge seat 15, the sponge seat 15 can remove the debris on the cutting knife 121.

[0037] After the cutting knife 121 moves downward to cut the wire, the cutting knife 121 moves downward and contacts the sponge seat 15. The sponge seat 15 can remove the debris attached to the cutting knife 121. The cutting knife 121 that has removed the debris moves upward and resets to disengage from the sponge seat 15. In this way, it can prevent debris from adhering to the cutting knife 121 and affecting the subsequent use effect, thereby improving the use effect of the cutting knife 121.

[0038] Finally, it is necessary to state that the above content is only used to help understand the technical solution of the present invention and should not be construed as a limitation on the protection scope of the present invention; any non-essential improvements and adjustments made by those skilled in the art based on the above content of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. An automatic cutting device for fastening screws, comprising a workbench (1) and an electric driving roller (2) installed on the workbench (1) for driving the wire to move. An elastic pressing roller (3) is installed above the electric driving roller (2) at the top of the workbench (1). A sliding seat (4) is slidably inserted through the workbench (1), and an inclined blanking plate (5) is fixedly connected to the sliding seat (4). It is characterized in that, It further includes a driving rod (11) fixedly inserted through the sliding seat (4). A disc (6) is fixedly sleeved at the end of the electric driving roller (2). A slotted hole (7) is formed at an eccentric position of the disc (6). A movable block (8) is slidably connected in the slotted hole (7). A connecting rod (10) is rotatably connected to the movable block (8). The end of the connecting rod (10) is rotatably connected to the end of the driving rod (11). An adjusting screw rod (9) located in the slotted hole (7) is rotatably connected to the disc (6). The adjusting screw rod (9) is threadedly connected to the movable block (8). A cutting assembly is arranged on the sliding seat (4) for cutting the wire. The electric driving roller (2) is used to drive the disc (6) to rotate. The disc (6) drives the movable block (8) to rotate. The movable block (8) drives the driving rod (11) to move left and right through the connecting rod (10). The driving rod (11) drives the cutting assembly to move left and right through the sliding seat (4) so that the cutting assembly can move along with the wire for continuous cutting. A grinding assembly is arranged on the sliding seat (4) for grinding the edge of the end of the cut wire.

2. The automatic cutting device for fastening screws according to claim 1, characterized in that, The cutting assembly includes an n-shaped frame (12) fixedly connected to the sliding seat (4). A cutter (121) is vertically slidably connected inside the n-shaped frame (12) for cutting the wire. A return spring (122) is symmetrically connected between the cutter (121) and the sliding seat (4). An L-shaped rod (123) is fixedly connected to the cutter (121). The L-shaped rod (123) is slidably connected to the n-shaped frame (12). A triggering assembly is arranged on the workbench (1) for driving the L-shaped rod (123) to move downward.

3. The automatic cutting device for fastening screws according to claim 2, characterized in that The triggering assembly includes slotted seats (124) symmetrically fixedly connected to the workbench (1). The slot of the slotted seat (124) consists of a straight section and a V-shaped section. The slotted seat (124) corresponds to the L-shaped rod (123) for driving the L-shaped rod (123) to move downward. A rotating shaft (125) is rotatably inserted through the slotted seat (124). A one-way plate (126) in contact with the inner top of the slotted seat (124) is fixedly connected to the end of the rotating shaft (125) to limit and guide the movement of the L-shaped rod (123). A torsion spring (127) is connected between the rotating shaft (125) and the slotted seat (124).

4. The automatic cutting device for fastening screws according to claim 3, characterized in that, The grinding assembly comprises an annular plate (13) fixedly connected to the sliding seat (4), an outer gear ring (135) is symmetrically connected to the inner side of the annular plate (13), a mounting plate (136) is symmetrically fixed between the outer gear rings (135), a steel brush plate (131) is slidably connected to the mounting plate (136) to grind the edge of the wire end, a buffer spring (137) is symmetrically connected between the steel brush plate (131) and the mounting plate (136), a housing (138) is fixedly connected to the annular plate (13), and a housing (138) is symmetrically connected between the two sides of the housing (138). The annular plate (13) is connected with an electric rotating rod (139) in a movable manner, and a spur gear (1310) meshing with the outer gear ring (135) is symmetrically fixedly mounted on the electric rotating rod (139). A dust collecting head (1312) is fixedly connected with the annular plate (13) for removing dust generated during the grinding process. The dust collecting head (1312) is connected with a connecting pipe (1311), and the discharge end of the connecting pipe (1311) is located outside the annular plate (13). A conveying assembly is provided between the annular plate (13) and the sliding seat (4) for driving the cut wire to move to the right.

5. An automatic cutting device for fastening screws according to claim 4, characterized in that, The conveying assembly comprises guide rollers (133) slidably connected to both sides of the annular plate (13); a connecting spring I (134) is connected between the guide rollers (133) and the annular plate (13); a conveying roller (132) located directly below the guide rollers (133) is rotatably connected to the sliding seat (4); the conveying rollers (132) are located on the right side of the n-shaped frame (12); the conveying rollers (132) are connected to each other through a synchronous belt assembly; a stepping motor (1321) is installed on the sliding seat (4); and an end of an output shaft of the stepping motor (1321) is fixedly connected to an end of one of the conveying rollers (132).

6. An automatic cutting device for fastening screws according to claim 5, characterized in that, The automatic cutting device for fastening screws also includes a straightening assembly, which includes a return seat (14) fixedly connected to the workbench (1), an L-shaped slide bar (145) symmetrically slidably connected to the return seat (14), a connecting spring II (146) symmetrically connected between the L-shaped slide bar (145) and the return seat (14), a straightening roller I (142) fixedly sleeved on the L-shaped slide bar (145) for straightening the wire, a straightening roller II (147) rotatably connected to the inner side of the return seat (14), and a straightening roller II (147) between the two sides of the return seat (14). A return frame (148) is slidably connected, and a straightening roller III (149) is rotatably mounted on the return frame (148) and is located directly above the straightening roller II (147). A driving plate (1410) is fixedly connected to the return seat (14), and the driving plate (1410) is in an inverted V shape. The driving plate (1410) contacts the L-shaped slide bar (145) and is used to drive the L-shaped slide bar (145) to move. An electric push rod (1411) is installed on the return seat (14), and the telescopic rod end of the electric push rod (1411) is fixedly connected to the return seat (14).

7. The automatic blanking device for fastening screws according to claim 6, characterized in that, The supporting component includes a fixed seat (143) fixedly connected to the workbench (1). The fixed seat (143) is located on both sides of the loop-shaped seat (14). A V-shaped support plate (144) is installed on the fixed seat (143), and the end of the V-shaped support plate (144) is fixedly connected to the loop-shaped seat (14) for supporting and guiding the wire.

8. The automatic cutting device for fastening screws according to claim 7, characterized in that, The automatic cutting device for fastening screws further includes a sponge seat (15) embedded and fixedly connected to the sliding seat (4). The sponge seat (15) is located directly below the cutting knife (121) for removing debris on the cutting knife (121).

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