Automatic shaft threading and pulling machine

Abstract

The invention relates to the technical field of automated assembly equipment, and discloses an automatic shaft threading and pulling machine, comprising a shaft pulling mechanism, which also includes a main body, a plurality of fixed plates fixedly connected to the side walls of the main body, and support legs fixedly connected to the bottoms of the plurality of fixed plates respectively; when the threaded rod drives the moving block to move forward, the moving block will contact the annular push plate, thereby pushing the annular push plate to slide on the limit rod, so that the annular push plate drives the push rod and the rectangular push plate to move forward, and then the rectangular push plate squeezes the telescopic tube, and after the telescopic tube is squeezed, the gas in the telescopic tube is forced to enter the air pipe, and the gas entering the air pipe pushes the piston rod, so that the piston rod slides in the air pipe, and when the piston rod slides, the rectangular block follows the rectangular block to move, and after the rectangular block moves, the support block is pulled downward by a pull rope, and after the support block moves downward, the circular plate and the sliding rod are driven to move downward, exerting a downward squeezing force on the compression spring.

Description

Technical Field

[0001] The invention relates to the technical field of automated assembly equipment, in particular to an automatic shaft threading and pulling machine. Background Art

[0002] During the packaging process of rolled products, an expansion mandrel needs to be inserted into the tube body, and then the tube body is driven to rotate under the rotation of the expansion mandrel, and the material is then wound around the tube body. Finally, the expansion mandrel is pulled out of the tube body to form a finished rolled product.

[0003] During the operation of the automatic shaft threading and pulling machine, especially at the moment of pulling out the shaft, the shaft will lose the support of the rolled product, and the shaft may fall due to the displacement of the center of gravity or instability, thus causing damage to the shaft. To address the above problems, the following solutions are proposed. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides an automatic shaft threading and pulling machine, including a shaft pulling mechanism, the shaft pulling mechanism also includes a main body, a plurality of fixed plates are fixedly connected to the side wall of the main body, and the bottoms of the plurality of fixed plates are respectively fixedly connected to support legs;

[0005] The clamping mechanism has a plurality of slide grooves on the top of the main body, and a slide rod 1 is slidably connected in the slide groove;

[0006] The anti-slip mechanism has a support frame fixedly connected to the top of the main body, a plurality of slide bars 2 are slidably connected to the top of the support frame, the plurality of slide bars 2 all penetrate the support frame and are slidably connected to the support frame, and circular plates are fixedly connected to the tops of the plurality of slide bars 2 respectively.

[0007] Preferably, the shaft pulling mechanism also includes a movable groove opened at the top of the main body, a threaded rod is rotatably connected on the inner wall of the movable groove, a driving motor is fixedly connected to the side wall of the main body, the output shaft of the driving motor extends into the movable groove and is fixedly connected to the threaded rod, a moving block is threadedly sleeved on the outer wall of the threaded rod, a plurality of limiting rods are fixedly connected to the inner wall of the movable groove, the plurality of limiting rods all penetrate the moving block and are slidably connected to the moving block, an arc-shaped supporting block is fixedly connected to the top of the moving block, the driving motor is started, the driving motor drives the threaded rod to rotate, and the threaded rod drives the moving block to move forward after rotation, and the threaded rod will generate shaking when driving the moving block to move. Under the limiting action of the limiting rod, it can ensure that the moving block will not shake during movement, so that the moving block is more stable during movement.

[0008] Preferably, the clamping mechanism also includes a fixed block fixedly connected to the side wall of the moving block, the top of the fixed block is provided with a through groove, the through groove is slidably connected to the sliding rod one, and a tension spring is fixedly connected to the side wall of the through groove, and the tension spring is fixedly connected to the outer wall of the sliding rod one on a side away from the through groove, and the top of the sliding rod one is fixedly connected to the clamping block. When the moving block moves forward, it is restricted by the shape of the sliding groove, forcing the sliding rod one to move along the trajectory of the sliding groove. When the sliding rod one is in the outer sliding groove in the sliding groove, the tension spring is in a stretched state. When the sliding rod one slides to the turning point of the sliding groove, the tension spring is no longer restricted by the shape of the sliding groove, and guides the sliding rod one to the inner sliding groove of the sliding groove. After the sliding rod one moves from the outer sliding groove of the sliding groove to the inner sliding groove, it drives several clamping blocks to approach each other, thereby clamping and fixing the mandrel to be pulled out, effectively clamping and fixing the mandrel, and ensuring the safety and stability when the mandrel is pulled out.

[0009] Preferably, the clamping mechanism also includes a plurality of limit grooves opened on the top of the fixed block, a plurality of limit blocks are fixedly connected to one side of the clamping block close to the sliding rod, the bottoms of the plurality of limit blocks respectively extend into the plurality of limit grooves and are respectively slidably connected to the plurality of limit grooves, a ratchet is rotatably connected to the top of the main body, a cylinder is fixedly connected to the top of the main body, a coil spring is fixedly connected to the inner wall of the cylinder, a limit tooth is fixedly connected to the inner wall of the coil spring, the limit tooth is meshed with the ratchet, and when the sliding rod moves backward to the turning point of the sliding groove , slide bar 1 contacts the ratchet and pushes the ratchet to rotate. At this time, slide bar 1 continues to move forward. After slide bar 1 moves forward and passes through the ratchet, it is restricted by the shape of the slide groove and slides to the outer slide groove of the slide groove. At this time, the clamping block follows the slide groove to move and no longer clamps the core shaft. The ratchet is restricted by the limit teeth and the coil spring, and the ratchet can only rotate clockwise, thereby avoiding the position of slide bar 1 at the inner slide groove of the slide groove when the core shaft is pulled out next time the device is used, thereby ensuring that the device can operate normally the next time it is used.

[0010] Preferably, the anti-slip mechanism also includes a compression spring sleeved on the outer wall of the second slide bar, the compression spring is fixedly connected to the circular plate on one side away from the support frame, the compression spring is fixedly connected to the support frame on one side away from the circular plate, the slide bar is fixedly connected to a support block on one side away from the circular plate, a groove is provided on the top of the support block, and a pulley is rotatably connected to the inner wall of the groove. After the core shaft is clamped and fixed, the drive motor is started again, and the drive motor drives the threaded rod to rotate in the opposite direction, thereby pulling out the core shaft clamped by the clamping block and driving the core shaft to move backward. Under the action of the pulley, when the clamped core shaft slides backward, the pulley can reduce the friction directly contacted by the core shaft when it moves, which helps to extend the service life of the core shaft and reduce the wear caused by friction.

[0011] Preferably, the anti-slip mechanism also includes an annular push plate slidably connected to the outer wall of the limit rod, a return spring is sleeved on the outer wall of the limit rod, the side of the return spring away from the annular push plate is fixedly connected to the inner wall of the movable groove, the other end of the return spring is fixedly connected to the annular push plate, an installation groove is opened on the top of the main body, a push rod is fixedly connected to the side wall of the annular push plate, one end of the push rod away from the annular push plate extends into the installation groove and is slidably connected to the installation groove, when the threaded rod drives the moving block to move forward, the moving block will contact the annular push plate, thereby pushing the annular push plate to slide on the limit rod, and the annular push plate drives the push rod to move forward, providing power for the anti-slip mechanism to operate.

[0012] Preferably, the anti-slip mechanism also includes a rectangular push plate slidably connected to the inner wall of the mounting groove, the side wall of the rectangular push plate is fixedly connected to the push rod, the side of the rectangular push plate away from the push rod is fixedly connected to a telescopic tube, the side of the telescopic tube away from the rectangular push plate is fixedly connected to the inner wall of the mounting groove, the push rod pushes the rectangular push plate forward, and then the rectangular push plate squeezes the telescopic tube.

[0013] Preferably, the anti-slip mechanism also includes an air pipe fixedly connected to the side wall of the telescopic tube, the air pipe extends to the outside of the main body away from the side of the telescopic tube and is fixedly connected to the main body, a piston rod is slidably connected to the inner wall of the air pipe, and a rectangular block is fixedly connected to the end of the piston rod away from the air pipe, the top of the main body is fixedly connected to a guide wheel, and the top of the rectangular block is fixedly connected to a pull rope, the pull rope passes around the guide wheel and is fixedly connected to the support block. After the telescopic tube is squeezed, the gas in the telescopic tube is forced to enter the air pipe, and the gas entering the air pipe pushes the piston rod to make the piston rod slide in the air pipe. When the piston rod slides, the rectangular block moves with the piston rod, and after the rectangular block moves, the support block is pulled downward by the pull rope. After the support block moves downward, it drives the circular plate and the sliding rod to move downward, exerting a downward squeezing force on the compression spring. When the telescopic tube is not squeezed, the support The block will block the core shaft. After the telescopic tube is squeezed to the bottom, the support block no longer blocks the core shaft, and the core shaft is placed above the support block. The support block is subjected to the downward pressure of the core shaft. At the same time, several clamping blocks clamp the core shaft. After the clamping block clamps the core shaft, the drive motor is started again to drive the threaded rod to reverse, thereby driving the clamped core shaft to move backward. As the clamping block continues to move backward, the annular push plate is no longer pushed by the moving block. At this time, the support block is still subjected to the downward pressure of the core shaft and will not complete the reset and upward movement, so that it can provide a support for the core shaft at the moment the core shaft is pulled out, provide supporting force for the core shaft, avoid the core shaft losing the support of the rolled product at the moment the core shaft is pulled out, support it at the moment the core shaft is pulled out, and ensure that the core shaft will not tilt or become unstable and fall due to loss of support during the process of pulling out the core shaft.

[0014] The present invention has the following beneficial effects:

[0015] The present invention aims to solve the problem that the mandrel will lose the support of the rolled product at the moment of pulling out, and the mandrel may fall due to the deviation of the center of gravity or instability. When the threaded rod drives the moving block to move forward, the moving block will contact the annular push plate, thereby pushing the annular push plate to slide on the limit rod, so that the annular push plate drives the push rod and the rectangular push plate to move forward, and then the rectangular push plate squeezes the telescopic tube. After the telescopic tube is squeezed, the gas in the telescopic tube is forced to enter the air supply pipe. The gas entering the air supply pipe pushes the piston rod, causing the piston rod to slide in the air supply pipe. When the piston rod slides, the rectangular block moves with the rectangular block, and the rectangular block After the movement, the support block is pulled downward by the pull rope. After the support block moves downward, it drives the circular plate and the sliding rod 2 to move downward, applying a downward squeezing force to the compression spring. After the support block moves downward, the mandrel to be pulled out is placed on the top of the support block, so that the support block provides supporting force for the mandrel when pulling out the mandrel, thereby avoiding the mandrel losing support for the rolled product at the moment the mandrel is pulled out, and supporting the mandrel at the moment of pulling out the mandrel, ensuring that the mandrel will not tilt or become unstable due to loss of support during the process of pulling out the mandrel, thereby avoiding the mandrel from shaking or tilting during the extraction process.

[0016] The present invention utilizes the thrust of the moving block when the threaded rod rotates to start the driving motor, and the driving motor drives the threaded rod to rotate. After the threaded rod rotates, it drives the moving block to move forward. The threaded rod will produce shaking when driving the moving block to move. Under the limiting action of the limiting rod, it can ensure that the moving block will not produce shaking when moving, so that the moving block is more stable when moving. In addition, when the slide bar slides in the slide groove and drives the clamping block to move, the slide bar will be affected by the circular shape and rotate when sliding in the slide groove. The clamping block is limited by the limiting block at a certain time, thereby ensuring the stability and accuracy of the clamping block when clamping the core shaft.

[0017] The present invention utilizes the characteristic of the change of the shape of the slide groove. When the moving block moves forward, it is restricted by the shape of the slide groove, forcing the slide rod 1 to move along the trajectory of the slide groove. When the slide rod 1 is in the outer slide groove of the slide groove, the tension spring is in a stretched state. When the slide rod 1 slides to the turning point of the slide groove, the tension spring is no longer pulled by the restriction of the shape of the slide groove, and the slide rod 1 is guided to the inner slide groove of the slide groove. After the slide rod 1 moves from the outer slide groove of the slide groove to the inner slide groove, it drives a plurality of clamping blocks to approach each other, thereby clamping and fixing the core shaft to be pulled out, effectively clamping and fixing the core shaft, and ensuring the safety and stability when the core shaft is pulled out.

[0018] After the spindle is clamped and fixed by the present invention, the driving motor is started again, and the driving motor drives the threaded rod to rotate in the opposite direction, thereby pulling out the spindle clamped by the clamping block and driving the spindle to move backward. Under the action of the pulley, when the clamped spindle slides backward, the pulley can reduce the friction directly contacted by the spindle when it moves, which is helpful to prolong the service life of the spindle and reduce the wear caused by friction; in addition, when the sliding rod one moves backward to the turning point of the sliding groove, the sliding rod one contacts the ratchet wheel and pushes the ratchet wheel to rotate. At this time, the sliding rod one continues to move forward. After the sliding rod one moves forward and passes through the ratchet wheel, it is restricted by the shape of the sliding groove and the sliding groove slides to the outer sliding groove of the sliding groove. At this time, the clamping block follows the sliding groove to move and no longer clamps the spindle. The ratchet wheel is restricted by the limiting teeth and the coil spring, and the ratchet wheel can only rotate clockwise, thereby avoiding the position of the sliding rod one at the inner sliding groove of the sliding groove when the device is used to pull out the spindle next time, thereby ensuring that the device can operate normally when it is used next time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0020] Figure 1 It is an exploded schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 3 For the present invention Figure 2 A is an enlarged schematic diagram;

[0023] Figure 4 It is a schematic diagram of the clamping mechanism of the present invention;

[0024] Figure 5 For the present invention Figure 4 A magnified schematic diagram of B;

[0025] Figure 6 It is a schematic diagram of a part of the structure of the anti-slip mechanism of the present invention;

[0026] Figure 7 It is a schematic diagram of the anti-slip mechanism of the present invention;

[0027] Figure 8 For the present invention Figure 7 A magnified schematic diagram of middle C;

[0028] Fig. 9 This is a diagram showing the extrusion state of the compression spring in the anti-slip mechanism of the present invention;

[0029] Fig.10 FIG. 1 is a clamping state diagram of the clamping mechanism of the present invention;

[0030] Fig.11 This is a diagram of the clamping state of the clamping block in the clamping mechanism of the present invention.

[0031] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0032] In the figure: 1. shaft pulling mechanism; 101. main body; 102. fixed plate; 103. supporting leg; 104. movable groove; 105. threaded rod; 106. driving motor; 107. moving block; 108. limiting rod; 109. arc-shaped supporting block; 2. clamping mechanism; 201. slide groove; 202. slide rod 1; 203. fixed block; 204. through groove; 205. tension spring; 206. clamping block; 207. limiting groove; 208. limiting block; 209. ratchet; 210. cylinder; 211. coil spring; 212. limit tooth; 3. anti-slip mechanism; 301. support frame; 302. slide bar 2; 303. circular plate; 304. compression spring; 305. support block; 306. groove; 307. pulley; 308. annular push plate; 309. return spring; 310. mounting groove; 311. push rod; 312. rectangular push plate; 313. telescopic tube; 314. air pipe; 315. piston rod; 316. rectangular block; 317. guide wheel; 318. pull rope. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] For example, see Figure 1 - Figure 5 The present invention is an automatic shaft threading and pulling machine, comprising a shaft pulling mechanism 1, the shaft pulling mechanism 1 further comprising a main body 101, a plurality of fixed plates 102 are fixedly connected to the side wall of the main body 101, and a plurality of supporting legs 103 are fixedly connected to the bottom of the plurality of fixed plates 102;

[0035] The clamping mechanism 2, a plurality of slide grooves 201 are provided on the top of the main body 101, and a slide rod 202 is slidably connected in the slide groove 201;

[0036] The anti-slip mechanism 3, the top of the main body 101 is fixedly connected to a support frame 301, the top of the support frame 301 is slidably connected to a plurality of sliding rods 302, the plurality of sliding rods 302 all penetrate the support frame 301 and are slidably connected to the support frame 301, and the tops of the plurality of sliding rods 302 are respectively fixedly connected to circular plates 303.

[0037] The shaft pulling mechanism 1 also includes a movable groove 104 opened on the top of the main body 101, and a threaded rod 105 is rotatably connected to the inner wall of the movable groove 104. A driving motor 106 is fixedly connected to the side wall of the main body 101. The output shaft of the driving motor 106 extends into the movable groove 104 and is fixedly connected to the threaded rod 105. A moving block 107 is threadedly sleeved on the outer wall of the threaded rod 105. A plurality of limiting rods 108 are fixedly connected to the inner wall of the movable groove 104, and the plurality of limiting rods 108 all penetrate the movable groove 104. Blocks 107 are all slidably connected to the moving block 107. The top of the moving block 107 is fixedly connected with an arc-shaped supporting block 109. The driving motor 106 is started, and the driving motor 106 drives the threaded rod 105 to rotate. After the threaded rod 105 rotates, it drives the moving block 107 to move forward. The threaded rod 105 will shake when driving the moving block 107 to move. Under the limiting action of the limiting rod 108, it can be ensured that the moving block 107 will not shake when moving, making the moving block 107 more stable when moving.

[0038] The clamping mechanism 2 also includes a fixed block 203 fixedly connected to the side wall of the moving block 107, a through slot 204 is provided on the top of the fixed block 203, the through slot 204 is slidably connected to the slide bar 202, a tension spring 205 is fixedly connected to the side wall of the through slot 204, the side of the tension spring 205 away from the through slot 204 is fixedly connected to the outer wall of the slide bar 202, and a clamping block 206 is fixedly connected to the top of the slide bar 202. When the moving block 107 moves forward, it is restricted by the shape of the slide slot 201, forcing the slide bar 202 to move along the track of the slide slot 201. When the slide bar 202 is in the outer slide groove of the slide groove 201, the tension spring 205 is in a stretched state. When the slide bar 202 slides to the turning point of the slide groove 201, the tension spring 205 is no longer pulled by the shape restriction of the slide groove 201, and the slide bar 202 is guided to the inner slide groove of the slide groove 201. After the slide bar 202 moves from the outer slide groove of the slide groove 201 to the inner slide groove, it drives several clamping blocks 206 to approach each other, so as to clamp and fix the core shaft to be pulled out, effectively clamping and fixing the core shaft, and ensuring the safety and stability when pulling out the core shaft.

[0039] The clamping mechanism 2 also includes a plurality of limit grooves 207 opened on the top of the fixed block 203, a plurality of limit blocks 208 are fixedly connected to the side of the clamping block 206 close to the slide bar 202, the bottoms of the plurality of limit blocks 208 extend into the plurality of limit grooves 207 respectively and are slidably connected to the plurality of limit grooves 207 respectively, a ratchet 209 is rotatably connected to the top of the main body 101, a cylinder 210 is fixedly connected to the top of the main body 101, a coil spring 211 is fixedly connected to the inner wall of the cylinder 210, a limit tooth 212 is fixedly connected to the inner wall of the coil spring 211, and the limit tooth 212 is meshed with the ratchet 209. When the slide bar 202 moves backward to the inflection point of the slide groove 201, the limit tooth 212 is engaged with the ratchet 209. When the lever 202 is in the bend, the slide bar 202 contacts the ratchet 209, pushing the ratchet 209 to rotate. At this time, the slide bar 202 continues to move forward. After the slide bar 202 moves forward and passes through the ratchet 209, it is restricted by the shape of the slide groove 201, and the slide groove 201 slides to the outer slide groove of the slide groove 201. At this time, the clamping block 206 follows the slide groove 201 to move and no longer clamps the spindle. The ratchet 209 is restricted by the limit teeth 212 and the coil spring 211, and the ratchet 209 can only rotate clockwise, thereby avoiding the position of the slide bar 202 at the inner slide groove of the slide groove 201 when the spindle is pulled out next time the device is used, thereby ensuring that the device can operate normally the next time it is used.

[0040] For example 2, please refer to Figure 6 - Fig.11 The present invention is an automatic shaft threading and pulling machine. On the basis of Example 1, the anti-slip mechanism 3 also includes a compression spring 304 sleeved on the outer wall of the second slide bar 302. The compression spring 304 is fixedly connected to the circular plate 303 on the side away from the support frame 301, and the compression spring 304 is fixedly connected to the support frame 301 on the side away from the circular plate 303. The second slide bar 302 is fixedly connected to a support block 305 on the side away from the circular plate 303. A groove 306 is provided on the top of the support block 305, and a pulley 307 is rotatably connected to the inner wall of the groove 306. After the mandrel is clamped and fixed, the drive motor 106 is started again. The drive motor 106 drives the threaded rod 105 to rotate in the opposite direction, thereby pulling out the mandrel clamped by the clamping block 206 and driving the mandrel to move backward. Under the action of the pulley 307, when the clamped mandrel slides backward, the pulley 307 can reduce the friction directly contacted by the mandrel when it moves, which helps to extend the service life of the mandrel and reduce the wear caused by friction.

[0041] The anti-slip mechanism 3 also includes an annular push plate 308 slidably connected to the outer wall of the limiting rod 108, and a return spring 309 is sleeved on the outer wall of the limiting rod 108. The side of the return spring 309 away from the annular push plate 308 is fixedly connected to the inner wall of the movable groove 104, and the other end of the return spring 309 is fixedly connected to the annular push plate 308. A mounting groove 310 is opened on the top of the main body 101, and a push rod 311 is fixedly connected to the side wall of the annular push plate 308. One end of the push rod 311 away from the annular push plate 308 extends into the mounting groove 310 and is slidably connected to the mounting groove 310. When the threaded rod 105 drives the moving block 107 to move forward, the moving block 107 will contact the annular push plate 308, thereby pushing the annular push plate 308 to slide on the limiting rod 108, and the annular push plate 308 drives the push rod 311 to move forward, providing power for the anti-slip mechanism 3 to operate.

[0042] The anti-slip mechanism 3 also includes a rectangular push plate 312 slidably connected to the inner wall of the mounting groove 310, the side wall of the rectangular push plate 312 is fixedly connected to the push rod 311, the side of the rectangular push plate 312 away from the push rod 311 is fixedly connected to a telescopic tube 313, the side of the telescopic tube 313 away from the rectangular push plate 312 is fixedly connected to the inner wall of the mounting groove 310, the push rod 311 pushes the rectangular push plate 312 to move forward, and then the rectangular push plate 312 squeezes the telescopic tube 313.

[0043] The anti-slip mechanism 3 also includes an air pipe 314 fixedly connected to the side wall of the telescopic tube 313. The air pipe 314 extends from one side of the telescopic tube 313 to the outside of the main body 101 and is fixedly connected to the main body 101. A piston rod 315 is slidably connected to the inner wall of the air pipe 314. The end of the piston rod 315 away from the air pipe 314 is fixedly connected to a rectangular block 316. A guide wheel 317 is fixedly connected to the top of the main body 101. A pull rope 318 is fixedly connected to the top of the rectangular block 316. The pull rope 318 passes around the guide wheel 317. The telescopic tube 313 is fixedly connected to the support block 305. After the telescopic tube 313 is squeezed, the gas in the telescopic tube 313 is forced to enter the gas pipe 314. The gas entering the gas pipe 314 pushes the piston rod 315 to slide in the gas pipe 314. When the piston rod 315 slides, the rectangular block 316 moves with the piston rod 315. After the rectangular block 316 moves, it pulls the support block 305 downward through the pull rope 318. After the support block 305 moves downward, it drives the circular plate 303 and the sliding rod 302 to move downward. The compression spring 304 applies a downward squeezing force. When the telescopic tube 313 is not squeezed, the support block 305 blocks the mandrel. After the telescopic tube 313 is squeezed to the bottom, the support block 305 no longer blocks the mandrel. The mandrel is placed above the support block 305. The support block 305 is subjected to the downward pressure of the mandrel. At the same time, a plurality of clamping blocks 206 clamp the mandrel. After the clamping block 206 clamps the mandrel, the drive motor 106 is started again to drive the threaded rod 105 to reverse, thereby driving the clamped mandrel to move backward. As the clamping block 206 continues to move backward, the annular push plate 308 is no longer pushed by the moving block 107. At this time, the support block 305 is still under the downward pressure of the core shaft and will not complete the reset upward movement, so that it can provide a support for the core shaft at the moment the core shaft is pulled out, provide supporting force for the core shaft, avoid the core shaft losing support for the rolled product at the moment the core shaft is pulled out, support it at the moment the core shaft is pulled out, and ensure that the core shaft will not tilt or become unstable and fall due to loss of support during the process of pulling out the core shaft.

[0044] A specific application of this embodiment is:

[0045] When it is necessary to pull the core shaft out of the rolled product, the driving motor 106 is first started. The driving motor 106 drives the threaded rod 105 to rotate. After the threaded rod 105 rotates, it drives the moving block 107 to move forward. The threaded rod 105 will shake when driving the moving block 107 to move. Under the limiting action of the limiting rod 108, it can ensure that the moving block 107 will not shake when moving, making the moving block 107 more stable when moving. When the moving block 107 moves forward, it is restricted by the shape of the slide groove 201, forcing the slide bar 202 to move along the trajectory of the slide groove 201. When the slide bar 202 is in the outer slide groove of the slide groove 201, the tension spring 205 is in a stretched state. When the slide bar 202 slides to the turning point of the slide groove 201, the tension spring 205 is no longer pulled by the restriction of the shape of the slide groove 201, 2 is guided to the inner slide groove of the slide groove 201. The slide groove 201 includes an inner slide groove and an outer slide groove. The inner slide groove is inclined. The clamping block 206 moves in the inner slide groove during the process of pulling out the mandrel. Due to the reason that the inner slide groove is inclined, the mandrel is gradually clamped tighter and tighter, which can prevent the mandrel from slipping off during the pulling out process. After the slide bar 202 moves from the outer slide groove of the slide groove 201 to the inner slide groove, it drives several clamping blocks 206 to approach each other, so as to clamp and fix the mandrel to be pulled out. When the slide bar 202 slides in the slide groove 201 and drives the clamping block 206 to move, the slide bar 202 will be affected by the circular shape and rotate when sliding in the slide groove 201. The clamping block 206 is limited by the limit block 208 at a certain time, which ensures the stability of the clamping block 206 when clamping the mandrel.

[0046] When the threaded rod 105 drives the moving block 107 to move forward, the moving block 107 will contact the annular push plate 308, thereby pushing the annular push plate 308 to slide on the limiting rod 108, so that the annular push plate 308 drives the push rod 311 and the rectangular push plate 312 to move forward, and then the rectangular push plate 312 squeezes the telescopic tube 313. After the telescopic tube 313 is squeezed, the gas in the telescopic tube 313 is forced to enter the gas pipe 314. The gas entering the gas pipe 314 pushes the piston rod 315, causing the piston rod 315 to slide in the gas pipe 314. The piston rod 315 When sliding, the rectangular block 316 moves with the piston rod 315, and the initial state of the pull rope 318 is in a taut state. After the rectangular block 316 moves, the bottom end of the pull rope 318 in the taut state moves outward, so that the distance between the bottom end of the pull rope 318 and the support block 305 continues to increase. As the rectangular block 316 continuously pulls the pull rope 318 outward, the pull rope 318 is forced to pull the support block 305 downward. After the support block 305 moves downward, it drives the circular plate 303 and the second slide bar 302 to move downward, exerting a downward squeezing force on the compression spring 304. After the block 305 moves downward, the mandrel to be pulled out is placed on the top of the support block 305. At the same time, the clamping block 206 clamps and fixes the mandrel. When the telescopic tube 313 is not squeezed, the support block 305 will block the mandrel. After the telescopic tube 313 is squeezed to the bottom, the support block 305 no longer blocks the mandrel. The mandrel is then placed above the support block 305. The support block 305 is subjected to the downward pressure of the mandrel. At the same time, several clamping blocks 206 clamp the mandrel. After the clamping block 206 clamps the mandrel, the drive motor 106 is started again to drive the threaded rod 105 to reverse. Thereby, the clamped mandrel is driven to move backward. As the clamping block 206 continues to move backward, the annular push plate 308 is no longer pushed by the moving block 107. At this time, the support block 305 is still under the downward pressure of the mandrel and will not complete the reset upward movement. Therefore, it can provide a support for the mandrel at the moment the mandrel is pulled out, provide supporting force for the mandrel, avoid the mandrel losing support for the rolled product at the moment the mandrel is pulled out, support the mandrel at the moment the mandrel is pulled out, and ensure that the mandrel will not tilt or become unstable and fall due to loss of support during the process of pulling out the mandrel.

[0047] After the mandrel is clamped and fixed, the drive motor 106 is started again, and the drive motor 106 drives the threaded rod 105 to rotate in the opposite direction, so that the mandrel clamped by the clamping block 206 is pulled out, and the mandrel is driven to move backward. Under the action of the pulley 307, when the clamped mandrel slides backward, the pulley 307 can reduce the friction directly contacted when the mandrel moves, which helps to extend the service life of the mandrel and reduce the wear caused by friction. When the slide bar 202 moves backward to the turning point of the slide groove 201, the slide bar 202 contacts the ratchet 209, pushing the ratchet 209 to rotate. Rod 1 202 continues to move forward. After sliding rod 1 202 moves forward and passes through ratchet 209, it is restricted by the shape of slide groove 201, and slide groove 201 slides to the outer slide groove of slide groove 201. At this time, clamping block 206 follows the movement of slide groove 201 and no longer clamps the spindle. Ratchet 209 is restricted by limit teeth 212 and coil spring 211, and ratchet 209 can only rotate clockwise, thereby avoiding the position of sliding rod 1 202 at the inner slide groove of slide groove 201 when the spindle is pulled out next time the device is used, thereby ensuring that the device can operate normally the next time it is used.

[0048] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An automatic shaft threading and pulling machine, comprising a shaft pulling mechanism (1), wherein the shaft pulling mechanism (1) further comprises a main body (101), a plurality of fixing plates (102) are fixedly connected to the side wall of the main body (101), and a plurality of supporting legs (103) are fixedly connected to the bottom of the fixing plates (102), characterized in that: Also includes: The clamping mechanism (2) is provided with a plurality of slide grooves (201) on the top of the main body (101), and a slide rod (202) is slidably connected in the slide groove (201); The anti-slip mechanism (3) comprises a support frame (301) fixedly connected to the top of the main body (101), a plurality of second slide bars (302) slidably connected to the top of the support frame (301), the plurality of second slide bars (302) all pass through the support frame (301) and are slidably connected to the support frame (301), and the tops of the plurality of second slide bars (302) are respectively fixedly connected to circular plates (303); The clamping mechanism (2) further comprises a fixed block (203) fixedly connected to the side wall of the moving block (107); a through slot (204) is provided on the top of the fixed block (203); the through slot (204) is slidably connected to the slide bar 1 (202); a tension spring (205) is fixedly connected to the side wall of the through slot (204); a side of the tension spring (205) away from the through slot (204) is fixedly connected to the outer wall of the slide bar 1 (202); and a clamping block (206) is fixedly connected to the top of the slide bar 1 (202); The clamping mechanism (2) further comprises a plurality of limit slots (207) formed on the top of the fixed block (203); a plurality of limit blocks (208) are fixedly connected to one side of the clamping block (206) close to the sliding rod (202); the bottoms of the plurality of limit blocks (208) respectively extend into the plurality of limit slots (207) and are respectively slidably connected to the plurality of limit slots (207); a ratchet (209) is rotatably connected to the top of the main body (101); a cylinder (210) is fixedly connected to the top of the main body (101); a coil spring (211) is fixedly connected to the inner wall of the cylinder (210); a limit tooth (212) is fixedly connected to the inner wall of the coil spring (211); and the limit tooth (212) is meshed with the ratchet (209); The anti-slip mechanism (3) further comprises a compression spring (304) sleeved on the outer wall of the second slide bar (302); the compression spring (304) is fixedly connected to the circular plate (303) on the side away from the support frame (301); the compression spring (304) is fixedly connected to the support frame (301) on the side away from the circular plate (303); a support block (305) is fixedly connected to the side of the second slide bar (302) away from the circular plate (303); a groove (306) is provided on the top of the support block (305); a pulley (307) is rotatably connected to the inner wall of the groove (306); The anti-slip mechanism (3) further comprises an annular push plate (308) slidably connected to the outer wall of the limiting rod (108); a return spring (309) is sleeved on the outer wall of the limiting rod (108); a side of the return spring (309) away from the annular push plate (308) is fixedly connected to the inner wall of the movable groove (104); the other end of the return spring (309) is fixedly connected to the annular push plate (308); a mounting groove (310) is formed on the top of the main body (101); a push rod (311) is fixedly connected to the side wall of the annular push plate (308); an end of the push rod (311) away from the annular push plate (308) extends into the mounting groove (310) and is slidably connected to the mounting groove (310); The anti-slip mechanism (3) further comprises a rectangular push plate (312) slidably connected to the inner wall of the mounting groove (310), the side wall of the rectangular push plate (312) being fixedly connected to the push rod (311), a telescopic tube (313) being fixedly connected to the side of the rectangular push plate (312) away from the push rod (311), and a telescopic tube (313) being fixedly connected to the inner wall of the mounting groove (310) on the side of the telescopic tube (313) away from the rectangular push plate (312); The anti-slip mechanism (3) further comprises an air pipe (314) fixedly connected to the side wall of the telescopic tube (313); the air pipe (314) extends to the outside of the main body (101) at a side away from the telescopic tube (313) and is fixedly connected to the main body (101); a piston rod (315) is slidably connected to the inner wall of the air pipe (314); an end of the piston rod (315) away from the air pipe (314) is fixedly connected to a rectangular block (316); a guide wheel (317) is fixedly connected to the top of the main body (101); a pull rope (318) is fixedly connected to the top of the rectangular block (316); the pull rope (318) passes around the guide wheel (317) and is fixedly connected to the support block (305); The shaft pulling mechanism (1) further comprises a movable groove (104) provided on the top of the main body (101); a threaded rod (105) is rotatably connected to the inner wall of the movable groove (104); a driving motor (106) is fixedly connected to the side wall of the main body (101); an output shaft of the driving motor (106) extends into the movable groove (104) and is fixedly connected to the threaded rod (105); a moving block (107) is threadedly sleeved on the outer wall of the threaded rod (105); a plurality of limiting rods (108) are fixedly connected to the inner wall of the movable groove (104); the plurality of limiting rods (108) all penetrate the moving block (107) and are slidably connected to the moving block (107); and an arc-shaped supporting block (109) is fixedly connected to the top of the moving block (107).

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