A carton processing nailer

Abstract

This invention relates to the field of cardboard box stapling technology and discloses a carton stapling machine, comprising two mounting plates, which are mounted on a base via brackets. Two connecting plates are fixedly connected between the two mounting plates, and sliding rods are slidably connected between the two connecting plates. A movable block is fixedly connected to one end of each sliding rod, and the movable block is rotatably connected to a rotating shaft via bearings. This invention utilizes a contact mechanism to connect the circuit after the feeding wheel is fully loaded with stapling wire. This energizes an electromagnet, which generates a repulsive force with a permanent magnet. This causes a lifting plate to rise via a connecting structure, lifting the pressure roller. During the remaining rotation of the feeding roller, the compression of the stapling wire between the feeding roller and the pressure roller is removed. This prevents wear and damage to the stapling wire coating caused by the feeding roller continuing to rotate and compress the wire until it is fully loaded, thus improving the quality of carton binding.

Description

Technical Field

[0001] This invention relates to the field of cardboard box nailing technology, specifically a box nailing machine for cardboard box processing. Background Technology

[0002] With the development of modern industry, carton stapling machines have become an indispensable piece of industrial equipment in the product assembly field. Carton stapling machines are commonly used for the final binding and forming of cartons. The principle of a carton stapling machine is the same as that of a regular stapler, using staples shaped like book staples to fasten the cartons together. Typically, a carton stapling machine includes a motor, a transmission assembly, a stapling mechanism, and a wire feeding mechanism. The staples used for binding are made of staple wire, which is wound in a reel and hung on the carton stapling machine. The motor provides power to both the stapling and wire feeding mechanisms through the transmission assembly. When binding the carton, the wire feeding mechanism pulls the staple wire from the reel and feeds it into the stapling mechanism. The stapling mechanism punches and bends the staple wire into an inverted U-shaped staple, which is then pressed against the base at the bottom of the carton to fasten the carton together.

[0003] During operation, the stapler wire is fed by the feeding wheel and pressure wheel in the wire feeding mechanism. The wire length fed each time is a fixed length, and the length of the wire fed is greater than the length required for the staple to be formed. This ensures that the staple wire abuts against the inner wall in the stapler mechanism, thus ensuring that the wire is fully fed in each feeding process. During the feeding process, the wire feeding wheel and pressure wheel will squeeze the staple wire and rotate and rub against it, which can easily wear down and damage the coating of the staple wire, resulting in a decrease in the quality of carton binding. At the same time, the accumulation of coating debris can easily affect the operation of the mechanical transmission structure inside the stapler, leading to damage to mechanical components and affecting the efficiency of carton binding. Summary of the Invention

[0004] In view of the shortcomings of existing carton stapling machines mentioned in the background art, the present invention provides a carton stapling machine for carton processing, which has the advantages of long service life and minimal impact on the coating of stapling wires, thus solving the technical problems mentioned in the background art.

[0005] This invention provides the following technical solution: a carton nailing machine for cardboard box processing, comprising two mounting plates, which are mounted on a base via brackets. Two connecting plates are fixedly connected between the two mounting plates, and sliding rods are slidably connected between the two connecting plates. A moving block is fixedly connected to one end of each sliding rod, and a rotating shaft is rotatably connected to the moving block via a bearing. A wire feeding wheel is fixedly connected to one end of the rotating shaft, and a splined drive shaft is slidably connected to one end of the wire feeding wheel. A lifting plate is slidably engaged between the two mounting plates, and connecting rods are fixedly connected to the front and rear ends of both sides of the upper surface of the lifting plate. A lifting cover is fixedly connected to the upper end of each connecting rod.

[0006] A pressure wheel is rotatably connected to the lower inner side of the lifting cover. A support plate is fixedly connected to one side of one of the two connecting plates. Limit rods are fixedly connected to the front and rear ends of the upper surface of the support plate. A round block is fixedly connected to the upper end of the limit rod, and a pressure spring is fixedly connected to the lower end of the round block. A fixing plate is fixedly connected between the two mounting plates. An electromagnet is fixedly installed at the midpoint of the upper surface of the fixing plate. A permanent magnet is fixedly installed at the midpoint of the upper surface of the lifting plate. A nailing mechanism is fixedly connected to the lower part of the two mounting plates. A contact mechanism is fixedly installed on one side of the lower end of the nailing mechanism.

[0007] Preferably, one end of the spline drive shaft is rotatably connected to the connecting plate, the spline drive shaft is an external spline shaft, the pressure roller is located directly above the wire feeding roller, the lower end of the pressure spring is fixedly connected to the lifting cover, the limiting rod is slidably sleeved with the lifting cover, the pressure spring is movably sleeved with the limiting rod, the permanent magnet is located above the electromagnet, and when the electromagnet is connected to the circuit, the force between it and the permanent magnet is a repulsive force, and the repulsive force is greater than the resultant force of the structure connected to the lifting plate and the elastic force of the two pressure springs.

[0008] Preferably, the nailing mechanism includes a housing, which is fixedly connected to a mounting plate. A wire feeding block is fixedly provided on one side of the housing, and a wire feeding groove is provided inside the wire feeding block. A punching cutter is slidably provided inside the housing, and a guide groove is provided on the side of the punching cutter near the wire feeding block. A pressure block is rotatably connected to the front end of the housing via a rotating shaft, and a wire bending groove is provided on the lower end of the rear end face of the pressure block.

[0009] Preferably, a spring-loaded mechanism is fixedly provided at the front end of the nailing mechanism. The spring-loaded mechanism includes a fixed tube, the rear end of which is fixedly connected to the housing. A return spring is fixedly connected to the front end of the inner wall of the fixed tube, and the other end of the return spring is fixedly connected to the pressure block.

[0010] Preferably, the contact mechanism includes a sliding conductive block and a fixed conductive block. An insulating block is fixedly sleeved on the outer side of both the sliding conductive block and the fixed conductive block. Both insulating blocks are slidably connected to the housing. A contact spring is fixedly connected to the side of the two insulating blocks that are close to each other. A limiting groove is formed on the upper end face of the insulating block that is fixedly sleeved with the sliding conductive block. A limiting block is fixedly provided at the lower end of one side of the housing, and the limiting block is embedded in the limiting groove.

[0011] Preferably, an adjustment mechanism is fixedly provided at the lower end of one side of the housing. The adjustment mechanism includes a fixed block, which is fixedly connected to the housing. A threaded rod is threadedly sleeved inside the fixed block. One end of the threaded rod is rotatably engaged with a fixed insulating block, and the other end of the threaded rod is fixedly connected to a knob. The sliding conductive block and the fixed conductive block are respectively connected in series with an electromagnet to the circuit. When the sliding conductive block and the fixed conductive block are separated, the circuit is disconnected.

[0012] Preferably, a transmission rod is fixedly connected to the midpoint of the front end face of the connecting rod, a lifting rod is fixedly connected to the midpoint of the lower end face of the transmission rod, a clearance groove is provided at the midpoint of the rear end face of the lifting rod, a stop pawl is rotatably connected to the clearance groove via a rotating shaft, a stop spring is fixedly connected to one upper side of the stop pawl, the other end of the stop spring is fixedly connected to the inner wall of the clearance groove, a sliding plate is fixedly connected to one midpoint of one side of one of the two mounting plates, a connecting block is fixedly connected to the other end of the sliding plate, and the front end of the connecting block is fixedly connected to the other mounting plate.

[0013] A sliding groove is provided on the side of the sliding plate near the midpoint. A sliding block is slidably disposed in the sliding groove. Moving rods are fixedly connected to the rear ends of both sides of the sliding block. The upper ends of the moving rods are fixedly connected to the moving block. A linkage rod is rotatably connected to one side of the sliding block near the front end. A connecting shaft is rotatably connected inside the connecting block. A rotating wheel is fixedly sleeved at one end of the connecting shaft. A ratchet gear is fixedly sleeved at the other end of the connecting shaft. A rotating rod is fixedly connected to the lower end of the rotating wheel. The rotating rod is fixedly connected to the linkage rod. A guide wire block is fixedly connected to one side of the lower end of the lifting cover. A guide wire hole is provided in the middle of the side of the guide wire block.

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

[0015] 1. This invention connects the circuit by pushing the sliding conductive block to contact the fixed conductive block after the staple wire is fully fed. When the electromagnet is energized, it interacts with the permanent magnet to form a repulsive force, causing the lifting plate to lift the structure above. This causes the pressure roller to rise after the staple wire is fully fed, removing the squeezing and feeding of the staple wire from the feeding roller and stopping the feeding. While ensuring a fixed staple wire feeding length each time, this invention avoids the feeding roller from continuing to rotate due to the remaining stroke after the staple wire is fully fed, which would cause relative rotation and friction on the staple wire, resulting in wear and damage to the staple wire coating. This improves the final binding quality of the carton and avoids the impact of the generated coating debris on the mechanical structure of the stapler, thus improving the stability of the stapler's operation.

[0016] 2. This invention uses a lifting rod and a pressure roller to raise and lower the weight. The lifting rod drives the ratchet gear to rotate in one direction via a stop pawl. When the lifting rod rises, it drives the ratchet gear to rotate. The lifting rod rises multiple times, causing the ratchet gear to rotate one revolution. The ratchet gear drives the sliding block to move back and forth through a connecting shaft, a rotating wheel, a rotating rod, and a linkage rod. Thus, when the feeding roller is not rotating and squeezing the wire, the ratchet gear rotates one revolution, causing the feeding roller to move back and forth once. Without increasing the additional friction between the feeding roller and the wire due to movement, this invention allows different parts of the friction surface between the wire and the feeding roller to contact each other, thereby increasing the contact area between the feeding roller and the wire, increasing the usable area of ​​the feeding roller, extending the time before the feeding roller wears out due to friction, and improving the service life of the nailing machine. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a partial structural diagram of the present invention;

[0019] Figure 3 For the present invention Figure 2 Enlarged schematic diagram of the structure at point A in the diagram;

[0020] Figure 4 This is a front sectional view of the nailing mechanism of the present invention;

[0021] Figure 5 For the present invention Figure 4 Enlarged schematic diagram of the structure at point B in the diagram;

[0022] Figure 6 This is a side sectional view of the nailing machine of the present invention;

[0023] Figure 7 This is a three-dimensional schematic diagram of part of the structure of the present invention;

[0024] Figure 8 This is a schematic diagram of part of the transmission structure of the present invention;

[0025] Figure 9 This is a schematic diagram of the structure of a portion of the ratchet gear in this invention;

[0026] Figure 10 This is a schematic diagram of the spline drive shaft structure of the present invention.

[0027] In the diagram: 1. Mounting plate; 2. Nail-driving mechanism; 201. Housing; 202. Punching tool; 203. Guide groove; 204. Wire feeding block; 205. Wire feeding groove; 206. Pressure block; 207. Wire bending groove; 3. Wire feeding wheel; 4. Wire pressure wheel; 5. Contact mechanism; 501. Sliding conductive block; 502. Fixed conductive block; 503. Insulating block; 504. Contact spring; 505. Limiting groove; 6. Adjustment mechanism; 601. Threaded rod; 602. Knob; 603. Fixing block; 7. Springback mechanism; 701. Fixing tube; 702. Return spring; 8. Splined drive shaft; 9. Rotating shaft; 10. Limiting rod; 11. 12. Connecting rod; 13. Pressure spring; 14. Lifting cover; 15. Guide block; 16. Guide hole; 17. Limiting block; 18. Fixing plate; 19. Electromagnet; 20. Lifting plate; 21. Permanent magnet; 22. Round block; 23. Support plate; 24. Connecting plate; 25. Sliding plate; 26. Sliding groove; 27. Sliding block; 28. Moving rod; 29. ​​Linkage rod; 30. Connecting shaft; 31. Rotating wheel; 32. Rotating rod; 33. Ratchet; 34. Lifting rod; 35. Transmission rod; 36. Moving block; 37. Stop pawl; 38. Stop spring; 39. Bracket; 40. Base; 41. Sliding rod. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figure 1 , Figure 2 , Figure 7 , Figure 8 and Figure 10A carton stapling machine for cardboard box processing includes two mounting plates 1, which are mounted on a base 40 via brackets 39. Two connecting plates 23 are fixedly connected between the two mounting plates 1, and sliding rods 41 are slidably connected between each of the two connecting plates 23. A movable block 36 is fixedly connected to one end of each sliding rod 41, and a rotating shaft 9 is rotatably connected to the movable block 36 via bearings. The sliding rods 41 and the movable block 36 support the rotating shaft 9 and can drive the rotating shaft 9 to move back and forth without affecting its rotation. A wire feeding wheel 3 is fixedly connected to the other end of the rotating shaft 9. The other end of the wire feeding wheel 3 is slidably connected to a spline drive shaft 8. The other end of the spline drive shaft 8 is rotatably connected to the connecting plate 23. The spline drive shaft 8 is an external spline shaft, which is used to drive the wire feeding wheel 3 to rotate and enable the wire feeding wheel 3 to slide back and forth relative to the spline drive shaft 8. The spline drive shaft 8 itself cannot move back and forth relative to the connecting plate 23. A lifting plate 19 is slidably engaged between the two mounting plates 1. Connecting rods 11 are fixedly connected to the front and rear ends on both sides of the upper end face of the lifting plate 19. A lifting cover 13 is fixedly connected to the upper end of the connecting rod 11. A pressure wheel 4 is rotatably connected to the lower end of the inner side of the lifting cover 13.

[0030] The lifting plate 19 can slide up and down relative to the mounting plate 1 within a certain range. The pressure roller 4 can rotate relative to the lifting cover 13. The pressure roller 4 is located directly above the feeding roller 3. The feeding roller 3 cooperates with the pressure roller 4 to press the wire and rotate to feed the wire to one side. The lifting plate 19 drives the lifting cover 13 to rise and fall through the connecting rod 11. One side of one of the two connecting plates 23 is fixedly connected to a support plate 22. The upper end face of the support plate 22 is fixedly connected to the front and rear ends of the front end face. The upper end of the limit rod 10 is fixedly connected to the limit rod 10. A circular block 21 is fixedly connected, and a pressure spring 12 is fixedly connected to the lower end of the circular block 21. The lower end of the pressure spring 12 is fixedly connected to the lifting cover 13. The limiting rod 10 is slidably sleeved with the lifting cover 13. The pressure spring 12 is movably sleeved with the limiting rod 10. The support plate 22 is fixed in position. The pressure spring 12, together with the circular block 21 and the limiting rod 10, is used to provide pressure. The lifting cover 13 can slide relative to the limiting rod 10, so that the lifting cover 13 drives the pressure wheel 4 to press down, so that the nail wire is pressed tightly by the wire feeding wheel 3 in conjunction with the pressure wheel 4.

[0031] See Figure 2 , Figure 3 and Figure 7A wire guide block 14 is fixedly connected to one side of the lower end of the lifting cover 13. A wire guide hole 15 is provided in the middle of the side of the wire guide block 14. The horizontal height of the wire guide hole 15 is the same as the height of the wire between the wire feeding wheel 3 and the wire pressing wheel 4. The free end of the wire passes through the wire guide hole 15. Due to the guidance of the wire, when the lifting cover 13 rises, it drives the wire pressing wheel 4 to rise, removing the pressure of the wire and stopping the wire feeding. At the same time, when the lifting cover 13 drives the wire guide block 14 to rise, it can lift the wire, so that the wire is no longer in contact with the wire feeding wheel 3, further avoiding... The friction between the feed wheel 3 and the nail wire is eliminated. A fixed plate 17 is fixedly connected between the two mounting plates 1. An electromagnet 18 is fixedly installed at the midpoint of the upper end surface of the fixed plate 17. A permanent magnet 20 is fixedly installed at the midpoint of the upper end surface of the lifting plate 19. The permanent magnet 20 is located above the electromagnet 18. When the electromagnet 18 is connected to the circuit, the force between it and the permanent magnet 20 is a repulsive force. The repulsive force is greater than the weight of the structure connected to the lifting plate 19 and the resultant force of the elastic force of the two pressure springs 12. When the circuit is connected, the repulsive force enables the permanent magnet to drive the lifting plate 19 to rise.

[0032] See Figure 2 , Figure 4 and Figure 6 A nailing mechanism 2 is fixedly connected to the lower end between the two mounting plates 1. The nailing mechanism 2 includes a housing 201, which is fixedly connected to the mounting plate 1. A wire feeding block 204 is fixedly installed on one side of the housing 201. A wire feeding groove 205 is opened in the wire feeding block 204. A punching cutter 202 is slidably installed in the housing 201. A guide groove 203 is opened on the side of the punching cutter 202 near the wire feeding block 204. A pressure block 206 is rotatably connected to the front end of the housing 201 via a rotating shaft. A wire bending groove 207 is opened at the lower end of the rear end face of the pressure block 206. A spring-loaded mechanism 7 is fixedly installed at the front end of the nailing mechanism 2. The spring-loaded mechanism 7 includes a fixing tube 701. The rear end of the fixing tube 701 is fixedly connected to the housing 201. A return spring 702 is fixedly connected to the front end face of the inner wall of the fixing tube 701. The other end of the return spring 702 is fixedly connected to the pressure block 206.

[0033] The wire feeding groove 205 is used to feed the nail wire into the housing 201. After the nail wire enters the housing 201, part of the nail wire is located in the bending groove 207. The punching cutter 202 moves downward to cut the nail wire and presses down and bends the part on both sides of the bending groove 207 to form an inverted U-shaped nail. Then the pressure block 206 rotates forward and moves away, and at the same time the wire feeding begins. The nail wire enters the bending groove 207 along the forward inclined surface of the guide groove 203 until the free end of the nail wire abuts against the inner wall of the housing 201 and the wire feeding stops. The wire feeding process and the nailing process after the nail is formed are carried out simultaneously. After the nailing is completed, the return spring 702 rebounds and the front wall of the bending groove 207 drives the nail wire back to below the punching cutter 202, which facilitates continuous nailing.

[0034] See Figure 4 and Figure 5A contact mechanism 5 is fixedly installed on one side of the nailing mechanism 2 near its lower end. The contact mechanism 5 includes a sliding conductive block 501 and a fixed conductive block 502. Insulating blocks 503 are fixedly sleeved on the outer sides of both the sliding conductive block 501 and the fixed conductive block 502. Both insulating blocks 503 are slidably connected to the housing 201. A contact spring 504 is fixedly connected to the side of the two insulating blocks 503 that are close to each other. A limit groove 505 is opened on the upper end surface of the insulating block 503 that is fixedly sleeved with the sliding conductive block 501. A limit block 16 is fixedly installed on one side of the lower end of the housing 201. 16 is embedded in the limiting groove 505. An adjustment mechanism 6 is fixedly installed on the lower side of one side of the housing 201. The adjustment mechanism 6 includes a fixing block 603, which is fixedly connected to the housing 201. A threaded rod 601 is threadedly sleeved in the fixing block 603. One end of the threaded rod 601 is rotatably engaged with the fixed insulating block 503. A knob 602 is fixedly connected to the other end of the threaded rod 601. The sliding conductive block 501 and the fixed conductive block 502 are respectively connected in series with the electromagnet 18 to the circuit. When the sliding conductive block 501 and the fixed conductive block 502 are separated, the circuit is disconnected.

[0035] The threaded rod 601 can rotate relative to the fixed conductive block 502 but cannot move laterally. It is used to adjust the distance between the fixed conductive block 502 and the sliding conductive block 501 by rotating the threaded rod 601, thereby adjusting the sensitivity of the contact mechanism 5. The contact spring 504 extends to separate the sliding conductive block 501 and the fixed conductive block 502. The limiting block 16 cooperates with the limiting groove 505 to limit the sliding range of the sliding conductive block 501, so that one side of the insulating block 503 is aligned with the side wall of the housing 201. When the screw enters the housing 201, the free end abuts against the insulating block 503, pushing the other side of the sliding conductive block 501 to abut against the fixed conductive block 502. At this time, the circuit is connected. The insulating block 503 can be electrically connected to the sliding conductive block 501 and the fixed conductive block 502 through the contact spring 504 when they are separated, and avoids electrical connection with other conductive structures.

[0036] See Figures 7-9 A transmission rod 35 is fixedly connected to the midpoint of the front end face of the connecting rod 11. A lifting rod 34 is fixedly connected to the midpoint of the lower end face of the transmission rod 35. A clearance groove is provided at the midpoint of the rear end face of the lifting rod 34. A stop pawl 37 is rotatably connected to the clearance groove via a rotating shaft. A stop spring 38 is fixedly connected to the upper side of one side of the stop pawl 37. The other end of the stop spring 38 is fixedly connected to the inner wall of the clearance groove. A sliding plate 24 is fixedly connected to the midpoint of one side of one of the two mounting plates 1. A connecting block 29 is fixedly connected to the other end of the sliding plate 24.

[0037] The front end of the connecting block 29 is fixedly connected to another mounting plate 1. A sliding groove 25 is provided on the side of the sliding plate 24 near the midpoint. A sliding block 26 is slidably arranged in the sliding groove 25. Moving rods 27 are fixedly connected to both sides of the sliding block 26 near the rear end. The upper end of the moving rod 27 is fixedly connected to the moving block 36. A linkage rod 28 is rotatably connected to one side of the sliding block 26 near the front end. A connecting shaft 30 is rotatably connected in the connecting block 29. A rotating wheel 31 is fixedly sleeved on one end of the connecting shaft 30. A ratchet 33 is fixedly sleeved on the other end of the connecting shaft 30. A rotating rod 32 is fixedly connected to the lower end of the rotating wheel 31. The rotating rod 32 is fixedly connected to the linkage rod 28.

[0038] The connecting rod 11 can drive the lifting rod 34 to rise and fall via the transmission rod 35, which in turn drives the stop pawl 37 to rise and fall. When the stop pawl 37 rises, the stop spring 38 pushes the stop pawl 37 to rotate and extend from the relief groove. The upper end of the stop pawl 37 abuts against the edge of the ratchet 33 and pushes the ratchet 33 to rotate in the forward direction. When the stop pawl 37 falls, the edge of the ratchet 33 abuts against the lower end face of the stop pawl 37 and pushes the stop pawl 37 to rotate and embed into the relief groove, so that the lifting rod 34 can achieve the action of the ratchet 33 through the stop pawl 37. In a one-way transmission, the ratchet 33 rotates, driving the connecting shaft 30 to rotate. The connecting shaft 30 drives the rotating wheel 31 to rotate, and the rotating wheel 31 drives the rotating rod 32 to rotate. The sliding block 26 can slide horizontally back and forth in the sliding groove 25, so that the end of the linkage rod 28 that is rotatably connected to the sliding block 26 can only slide back and forth. The other end of the linkage rod 28 moves in a circle around the connecting shaft 30 as the rotating rod 32 rotates, thereby causing the one-way rotation of the rotating rod 32 to drive the sliding block 26 to slide back and forth through the linkage rod 28.

[0039] The sliding block 26 drives the moving block 36 to move back and forth via the moving rod 27. As the pressing wheel 4 rises and separates from the feeding wheel 3, the feeding wheel 3 moves back and forth. Each rotation of the ratchet 33 completes one cycle of back and forth movement of the feeding wheel 3. The lifting rod 34, which rises synchronously with the pressing wheel 4, rises and falls multiple times, driving the ratchet 33 to rotate one cycle. The back and forth movement of the feeding wheel 3 is synchronized with the stopping of the feeding, which avoids the feeding wheel 3 from squeezing the wire and causing wear on the wire while rotating and moving back and forth. This allows the wire to contact different friction surfaces of the feeding wheel 3, increasing the usable area of ​​the friction surface of the feeding wheel 3.

[0040] The method of using (working principle) of this invention is as follows:

[0041] The pressure spring 12 provides pressure between the wire feeding wheel 3 and the pressure wheel 4, causing the wire feeding wheel 3 and the pressure wheel 4 to rotate and squeeze the nail wire. After passing through the wire guide hole 15 and the wire feeding groove 205, the nail wire enters the nailing mechanism 2. The free end of the nail wire abuts against the insulating block 503, pushing the sliding conductive block 501 to slide until it is in contact with the fixed conductive block 502. At this time, the length of the nail wire extending into the inner side of the housing 201 is the nail wire length required for nail forming, that is, the nail wire is just fully fed. At the same time, the circuit is connected, the electromagnet 18 is energized, and the repulsive force generated between it and the permanent magnet 20 pushes the lifting plate 19 to rise, thereby causing the pressure wheel 4 to rise, removing the squeezing of the nail wire below, and stopping the continued feeding of wire. This prevents the wire feeding wheel 3 from continuing to rotate because the preset feeding distance is greater than the length of the nail wire fully fed, which would squeeze the nail wire and wear and damage the coating of the nail wire.

[0042] After the nailing mechanism 2 cuts the nail wire, the contact spring 504 rebounds, causing the sliding conductive block 501 and the fixed conductive block 502 to separate, breaking the circuit. The wire pressing spring 12 resets, causing the wire feeding wheel 3 to rotate again with the wire pressing wheel 4 to press the nail wire, entering the next round of wire feeding. During the lifting and lowering of the wire pressing wheel 4, the lifting rod 34, which rises and falls synchronously with the wire pressing wheel 4, drives the ratchet 33 to rotate unidirectionally through the stop pawl 37. The ratchet 33 drives the sliding block 26 to move back and forth through the connecting shaft 30, rotating wheel 31, rotating rod 32 and linkage rod 28. Thus, while stopping the wire feeding, the lifting rod 34 lifts and lowers multiple times, causing the wire feeding wheel 3 to move back and forth, so that different parts of the friction surface of the wire feeding wheel 3 come into contact, thereby increasing the usable area of ​​the friction surface of the wire feeding wheel 3 and improving the service life of the wire feeding wheel 3.

Claims

1. A carton stapling machine for cardboard box processing, comprising two mounting plates (1), the two mounting plates (1) being mounted on a base (40) via brackets (39), characterized in that: Two connecting plates (23) are fixedly connected between the two mounting plates (1). Sliding rods (41) are slidably connected between the two connecting plates (23). A moving block (36) is fixedly connected to one end of the two sliding rods (41) that is close to each other. A rotating shaft (9) is rotatably connected to the moving block (36) through a bearing. A wire feeding wheel (3) is fixedly connected to one end of the rotating shaft (9). A spline drive shaft (8) is slidably connected to one end of the wire feeding wheel (3). A lifting plate (19) is slidably engaged between the two mounting plates (1). Connecting rods (11) are fixedly connected to the front and rear ends of both sides of the upper end face of the lifting plate (19). A lifting cover (13) is fixedly connected to the upper end of the connecting rod (11). The lifting cover (13) is rotatably connected to the lower end of the inner side of the lifting cover (13). One of the two connecting plates (23) is fixedly connected to a support plate (22) on one side. The upper end of the support plate (22) is fixedly connected to the front and rear ends of the upper end face. The upper end of the limit rod (10) is fixedly connected to a round block (21). The lower end of the round block (21) is fixedly connected to a pressure spring (12). The two mounting plates (1) are fixedly connected to a fixing plate (17). An electromagnet (18) is fixedly installed at the midpoint of the upper end face of the fixing plate (17). A permanent magnet (20) is fixedly installed at the midpoint of the upper end face of the lifting plate (19). The lower end of the two mounting plates (1) is fixedly connected to a nailing mechanism (2). The lower end of one side of the nailing mechanism (2) is fixedly connected to a contact mechanism (5). One end of the spline drive shaft (8) is rotatably connected to the connecting plate (23). The spline drive shaft (8) is an external spline shaft. The pressure wheel (4) is located directly above the wire feeding wheel (3). The lower end of the pressure spring (12) is fixedly connected to the lifting cover (13). The limiting rod (10) is slidably sleeved with the lifting cover (13). The pressure spring (12) is movably sleeved with the limiting rod (10). The permanent magnet (20) is located above the electromagnet (18). When the electromagnet (18) is connected to the circuit, the force between it and the permanent magnet (20) is a repulsive force, and the repulsive force is greater than the weight of the structure connected to the lifting plate (19) and the resultant force of the elastic force of the two pressure springs (12).

2. The carton stapling machine for cardboard box processing according to claim 1, characterized in that: The nailing mechanism (2) includes a housing (201), which is fixedly connected to the mounting plate (1). A wire feeding block (204) is fixedly provided on one side of the housing (201). A wire feeding groove (205) is provided in the wire feeding block (204). A punching cutter (202) is slidably provided in the housing (201). A guide groove (203) is provided on the side of the punching cutter (202) near the wire feeding block (204). A pressure block (206) is rotatably connected to the front end of the housing (201) via a rotating shaft. A wire bending groove (207) is provided on the lower end of the rear end face of the pressure block (206).

3. A carton stapling machine for cardboard box processing according to claim 2, characterized in that: The front end of the nailing mechanism (2) is fixedly provided with a spring-loaded mechanism (7). The spring-loaded mechanism (7) includes a fixed tube (701). The rear end of the fixed tube (701) is fixedly connected to the housing (201). The front end of the inner wall of the fixed tube (701) is fixedly connected with a reset spring (702). The other end of the reset spring (702) is fixedly connected to the pressure block (206).

4. A carton stapling machine for cardboard box processing according to claim 3, characterized in that: The contact mechanism (5) includes a sliding conductive block (501) and a fixed conductive block (502). An insulating block (503) is fixedly sleeved on the outer side of both the sliding conductive block (501) and the fixed conductive block (502). Both insulating blocks (503) are slidably connected to the housing (201). A contact spring (504) is fixedly connected to the side of the two insulating blocks (503) that are close to each other. A limiting groove (505) is opened on the upper end surface of the insulating block (503) that is fixedly sleeved with the sliding conductive block (501). A limiting block (16) is fixedly provided on the lower end of one side of the housing (201). The limiting block (16) is embedded in the limiting groove (505).

5. A carton stapling machine for cardboard box processing according to claim 4, characterized in that: An adjustment mechanism (6) is fixedly provided on the lower side of one side of the housing (201). The adjustment mechanism (6) includes a fixing block (603). The fixing block (603) is fixedly connected to the housing (201). A threaded rod (601) is threadedly sleeved inside the fixing block (603). One end of the threaded rod (601) is rotatably engaged with a fixed insulating block (503). A knob (602) is fixedly connected to the other end of the threaded rod (601). The sliding conductive block (501) and the fixed conductive block (502) are connected in series with an electromagnet (18) to the circuit. The circuit is disconnected when the sliding conductive block (501) and the fixed conductive block (502) are separated.

6. A carton stapling machine for cardboard box processing according to claim 1, characterized in that: A transmission rod (35) is fixedly connected to the midpoint of the front end face of the connecting rod (11). A lifting rod (34) is fixedly connected to the midpoint of the lower end face of the transmission rod (35). A clearance groove is provided at the midpoint of the rear end face of the lifting rod (34). A stop pawl (37) is rotatably connected to the clearance groove via a rotating shaft. A stop spring (38) is fixedly connected to the upper side of one side of the stop pawl (37). One end of the stop spring (38) is fixedly connected to the inner wall of the clearance groove. A sliding plate (24) is fixedly connected to the midpoint of one side of one of the two mounting plates (1). A connecting block (29) is fixedly connected to the other end of the sliding plate (24). The front end of the connecting block (29) is fixedly connected to the other mounting plate (1). A sliding groove (25) is provided on the side of the sliding plate (24) near the midpoint. A sliding block (26) is slidably arranged in the sliding groove (25). A moving rod (27) is fixedly connected to both sides of the sliding block (26) near the rear end. The upper end of the moving rod (27) is fixedly connected to the moving block (36). A linkage rod (28) is rotatably connected to one side of the sliding block (26) near the front end. A connecting shaft (30) is rotatably connected in the connecting block (29). A rotating wheel (31) is fixedly sleeved on one end of the connecting shaft (30). A ratchet gear (33) is fixedly sleeved on the other end of the connecting shaft (30). A rotating rod (32) is fixedly connected to the lower end of the rotating wheel (31). The rotating rod (32) is fixedly connected to the linkage rod (28). A guide wire block (14) is fixedly connected to one side of the lower end of the lifting cover (13). A guide wire hole (15) is provided in the middle of the side of the guide wire block (14).

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