Automatic metal cable tie assembly machine

Abstract

The utility model relates to the technical field of ribbon assembly automation equipment, especially a kind of metal ribbon automatic assembly machine;It includes rack and the material belt feeding mechanism, cutting and punching mechanism, strip bending mechanism, ribbon head feeding mechanism and pulling mechanism installed in sequence, strip bending mechanism includes first, second bending mechanism, first driving mechanism including the fixed connection of the first motor of the output end and rotary bending bar, the fixed connection of first motor side first mounting plate, the linear sliding connection of second mounting plate with first mounting plate, the second driving mechanism that can drive first mounting plate on second mounting plate sliding close or away from positioning block;The utility model improves after prior art, simplifies the structure of first driving mechanism, reduces the number of parts and linkage complexity, to reduce failure rate;Through the vertical wallboard centralized installation each core mechanism, optimize the whole machine layout, it is convenient to maintain.

Description

Technical Field

[0001] This utility model relates to the field of automated cable tie assembly equipment, and in particular to an automatic metal cable tie assembly machine. Background Technology

[0002] Cable ties are straps used to bundle items; they are also called cable ties, wire ties, or locking straps. Based on material, cable ties can be divided into nylon cable ties and stainless steel cable ties. Stainless steel cable ties consist of a strip and a tie head connected to one end of the strip. To improve the connection strength between the strip and the tie head, a buckle is usually punched at one end of the strip, and this end is bent and connected to the tie head. Traditionally, the assembly of the strip and the tie head is usually done manually, which is relatively inefficient.

[0003] In view of this, Chinese invention patent CN119772025A discloses an automatic metal cable tie assembly machine. Its first drive mechanism for the cable tie bending mechanism achieves linkage through gears, cams, and return springs, resulting in numerous parts and a complex linkage structure, making it prone to malfunctions. Furthermore, in the aforementioned existing equipment, the drive structures such as motors and cylinders are distributed and installed on both sides of the cable tie on the frame and below the worktable, resulting in a cluttered overall layout and inconvenient maintenance.

[0004] Therefore, it is necessary to improve upon the shortcomings of the existing technologies mentioned above. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide an automatic metal cable tie assembly machine to address the shortcomings of the prior art, thereby solving the problems of complex and faulty first drive mechanism and inconvenient maintenance caused by messy overall structure layout in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic metal cable tie assembly machine, comprising a frame and a cable tie feeding mechanism for conveying continuous cable ties, a cutting and stamping mechanism for cutting and buckling the cable ties to form strips, a strip bending mechanism for bending one end of the strip, a cable tie head feeding mechanism for continuously conveying cable tie heads located on one side of the strip bending mechanism, and a cable tie pulling mechanism for pulling the strip forward located beside the strip bending mechanism; the strip bending mechanism includes a first bending mechanism capable of rotary bending of the strip and a second bending mechanism capable of stamping bending. The two bending mechanisms include a first bending mechanism comprising a rotary bending rod, a positioning block disposed on one side of the rotary bending rod, and a first driving mechanism for extending, retracting, and rotating the rotary bending rod. The rotary bending rod has a gap for the strip to pass through, and the positioning block has a positioning surface and a clearance groove adapted to the rotary bending rod at its front end. The first driving mechanism includes a first motor whose output end is fixedly connected to the rotary bending rod, a first mounting plate fixedly connected to one side of the first motor, a second mounting plate linearly slidably connected to the first mounting plate, and a second driving mechanism capable of driving the first mounting plate to slide closer to or away from the positioning block on the second mounting plate.

[0007] By adopting the above technical solution, the first motor directly drives the rotary bending rod to rotate, and the second drive mechanism controls the movement of the first motor and the rotary bending rod on the first mounting plate. Compared with the complex linkage structure of gears, cams and return springs in the prior art, the drive structure of the rotary bending rod is simplified, the number of parts and linkage complexity are reduced, thereby reducing the failure rate.

[0008] A further configuration of the above technical solution is as follows: a first linear guide rail is installed between the first mounting plate and the second mounting plate, the slider of the first linear guide rail is fixedly connected to the first mounting plate, and the second driving mechanism includes a second motor mounted on the second mounting plate, a first eccentric rotating component mounted on the output shaft of the second motor, and a first connecting rod rotatably connected to the first eccentric rotating component and the first mounting plate respectively.

[0009] By adopting the above technical solution, the rotational motion of the motor is converted into linear motion through the cooperation of the eccentric rotating component and the connecting rod. This enables the first mounting plate to slide back and forth along the first linear guide rail, realizing the extension and retraction of the rotary bending rod. The structure is compact and the transmission is efficient, further simplifying the drive structure.

[0010] A further configuration of the above technical solution is as follows: the output end of the first motor is connected to the rotary bending rod via a coupling; the end of the rotary bending rod near the first motor is rotatably connected to a bearing seat mounted on a first mounting plate; a first detection sensor for detecting the rotational position of the rotary bending rod is mounted on one side of the bearing seat; a first detection element cooperating with the first detection sensor is mounted on the rotary bending rod; a second detection sensor is mounted on one side of the first eccentric rotating component on the second mounting plate; a second detection element cooperating with the second detection sensor is mounted on the first eccentric rotating component.

[0011] Using the above technical solution, the first detection sensor cooperates with the first detection component, and the second detection sensor cooperates with the second detection component to monitor the initial rotation position and extension position of the rotary bending rod, respectively, so as to control the start and stop of the rotation of the first motor and the second motor, and complete one rotation and extension action of the rotary bending rod.

[0012] A further configuration of the above technical solution is as follows: a vertical wall panel is installed on the worktable of the frame, the second mounting plate is horizontally fixedly installed on the vertical wall panel, the positioning block is fixedly installed on the second mounting plate, and the material feeding mechanism, the cutting and punching mechanism, and the second bending mechanism are all installed on the vertical wall panel.

[0013] By adopting the above technical solution, the core mechanisms are centrally installed on vertical wall panels, optimizing the overall layout, avoiding structural clutter, and facilitating maintenance and operation.

[0014] A further configuration of the above technical solution is as follows: the second bending mechanism includes a vertically arranged stamped bending rod, a third motor mounted on a vertical wall plate, and a second linear guide rail. A third mounting plate is mounted on the slider of the second linear guide rail. The upper end of the stamped bending rod is fixedly mounted on the third mounting plate. A second eccentric rotating component is mounted on the output shaft of the third motor. The second eccentric rotating component is rotatably connected to the third mounting plate by a second connecting rod. A third detection sensor is mounted on the vertical wall plate next to the second eccentric rotating component. A third detection component that cooperates with the third detection sensor is mounted on the second eccentric rotating component. The lower end of the stamped bending rod can abut against the positioning surface and is provided with an arched groove that corresponds to the clearance groove.

[0015] Using the above technical solution, the third motor drives the second eccentric rotating component to rotate, and through the second connecting rod drives the stamping bending rod to move up and down along the second linear guide. When the stamping bending rod descends, it cooperates with the arched groove and the positioning surface to realize the secondary bending of the strip. The detection sensor cooperates to control the rotation and start and stop of the third motor to drive the stamping bending rod to complete one stamping action.

[0016] A further configuration of the above technical solution is as follows: the rear end of the positioning block is provided with a limiting groove for feeding the cable tie head. The inner side of the limiting groove is connected to a movable groove. The positioning block is rotatably connected to a limiting rotating rod on both sides of the movable groove via a pin. The upper end of the limiting rotating rod can abut against the bottom wall of the movable groove, and the lower end has a movable gap with the bottom wall of the movable groove. The lower end of the limiting rotating rod is provided with a first recessed groove facing the movable groove. The bottom wall of the movable groove is provided with a second recessed groove corresponding to the position of the first recessed groove. A first spring is installed between the first recessed groove and the second recessed groove. Above the limiting groove and the movable groove, there is also a relief groove for pulling out the cable tie head. The upper side of the relief groove is provided with a fixed position above the limiting groove. The pressure settling hole has a pressure settling block slidably connected inside it. The upper end of the pressure settling block extends horizontally, and the lower end of the pressure settling block is fitted with a second spring that is accommodated in the pressure settling hole. The upper end of the pressure settling block has a through hole, and the through hole is slidably connected to a first limiting post. The positioning block has a limiting hole for the first limiting post to slide vertically. The first limiting post is fitted with a third spring, the upper end of which abuts against the upper end of the first limiting post and the lower end of which abuts against the pressure settling block. The side of the positioning block has a limiting strip hole that communicates with the limiting hole. The limiting strip hole is fitted with a second limiting post that is detachably connected to the lower end of the first limiting post. The stamped bending rod has a pressing block that can abut against the first limiting post.

[0017] Using the above technical solution, when the strip is bent a second time, the stamping bending rod descends while simultaneously driving the pressure block to press down the first limiting post. The first limiting post descends, compressing the third spring and elastically acting on the lower fixed pressure block. The lower end of the fixed pressure block then presses down on the second spring and extends out of the fixed pressure countersink to press down on the cable tie head in the lower limiting slot. After the strip is bent a second time, the stamping bending rod rises a short distance, and the belt pulling mechanism pulls the strip, causing the bent part of the strip to hook onto the cable tie head and complete the engagement. The pressure block is lifted back to its initial position. Under the elastic force of the second and third springs, the lower end of the pressure block retracts into the pressure countersink. Continuing to pull the strip causes the cable tie head to press against the limiting rotating rod. After the limiting rotating rod rotates, its other end squeezes the first spring. The strip then causes the cable tie head to disengage from the limiting slot and be unloaded. Under the elastic force of the first spring, the limiting rotating rod rotates back to its original position, and the next cable tie head is filled into the limiting slot. This completes one stamping bending and assembly unloading operation.

[0018] The above technical solution is further configured as follows: the material feeding mechanism includes a correction structure for guiding the material belt, a leveling structure for leveling the material belt, a conveying structure for driving the material belt forward, and a pressure plate structure for limiting and guiding; the correction structure includes a fourth mounting plate mounted on a vertical wall plate, a horizontal correction wheel assembly and a vertical correction wheel assembly mounted on the fourth mounting plate; the leveling structure includes an upper rotating wheel assembly, a lower rotating wheel assembly and a first cylinder capable of driving the upper rotating wheel assembly to rise and fall, mounted on the vertical wall plate; the conveying structure includes a conveying drive wheel, a conveying driven wheel and a fourth motor connected to the conveying drive wheel, mounted on the vertical wall plate, and the conveying driven wheel is connected to a second cylinder capable of driving it to rise and fall; the pressure plate structure includes an upper clamping plate and a lower clamping plate mounted on the vertical wall plate.

[0019] By adopting the above technical solution, the correction and leveling structure ensures the flatness and accuracy of the conveying strip, and the conveying structure and pressure plate structure work together to achieve stable conveying of the conveying strip, providing a guarantee for subsequent cutting and stamping processes.

[0020] A further configuration of the above technical solution is as follows: the cutting and stamping mechanism includes an upper cutting module, a lower cutting template, and a third driving mechanism that can drive the upper cutting module to perform lifting and stamping on a vertical wall panel. The third driving mechanism includes a third linear guide rail and a fifth motor. A fifth mounting plate is mounted on the slider of the third linear guide rail. A third eccentric rotating component is mounted on the output shaft of the fifth motor. The third eccentric rotating component is rotatably connected to the fifth mounting plate by a third connecting rod. The lower end of the fifth mounting plate is connected to the upper cutting module.

[0021] Using the above technical solution, the rotation of the fifth motor drives the eccentric rotating component and the connecting rod to drive the upper cutting module to rise and fall, thereby achieving efficient cutting and buckle stamping of the strip.

[0022] A further provision of the above technical solution is that the cable tie feeding mechanism includes a vibratory plate mounted on the frame, a feeding track connected to the discharge port of the vibratory plate, and a straight vibrator connected to the lower end of the feeding track. The position of the discharge port of the feeding track corresponds to the position of the limiting slot, so that the cable tie head can be smoothly transferred into the limiting slot.

[0023] By adopting the above technical solution, the vibratory feeder and the straight vibrator work together to achieve continuous and orderly conveying of the cable tie head, ensuring that the cable tie head accurately enters the limit slot and improving the continuity of assembly.

[0024] A further configuration of the above technical solution is as follows: the belt pulling mechanism includes a pneumatic gripper capable of pulling the belt forward, and a fourth drive mechanism capable of moving the pneumatic gripper. The fourth drive mechanism includes a bracket mounted on the frame, a fourth linear guide rail mounted on the bracket, and a sixth motor. A sixth mounting plate is mounted on the slider of the fourth linear guide rail. The output shaft of the sixth motor is connected to a lead screw, which is threadedly connected to the sixth mounting plate. The pneumatic gripper is mounted on the sixth mounting plate. A discharge guide rail for finished product discharge is mounted below the pneumatic gripper.

[0025] Using the above technical solution, the sixth motor drives the lead screw to drive the pneumatic gripper to move smoothly, realizing the precise pulling of the strip. The finished product is output in an orderly manner through the discharge guide rail, improving the automation level of the whole machine.

[0026] The beneficial effects achieved by this utility model are: it simplifies the structure of the first drive mechanism, reduces the number of parts and the complexity of linkage, thereby reducing the failure rate; by centrally installing each core mechanism on the vertical wall panel, it optimizes the overall layout and facilitates maintenance. Attached Figure Description

[0027] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model; Figure 2 yes Figure 1 A partial view at point A in the middle; Figure 3 This is a schematic diagram of the material belt feeding mechanism in an embodiment of this utility model; Figure 4 This is a schematic diagram of the cutting and stamping mechanism in an embodiment of this utility model; Figure 5 This is a schematic diagram of the structure of the first bending mechanism in this embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the second bending mechanism in this embodiment of the present invention; Figure 7 This is an exploded view of the cable tie head limiting structure at the positioning block in an embodiment of this utility model; Figure 8 This is a schematic diagram of the positioning block in an embodiment of this utility model; Figure 9 This is a schematic diagram of the limiting rotating rod in an embodiment of this utility model; Figure 10 This is a schematic diagram of the cable tie feeding mechanism in an embodiment of this utility model; Figure 11 This is a schematic diagram of the pull belt mechanism in an embodiment of this utility model.

[0028] Reference numerals: 1. Frame; 11. Vertical wall panel; 2. Belt feeding mechanism; 21. Correction structure; 211. Fourth mounting plate; 212. Horizontal correction wheel assembly; 213. Vertical correction wheel assembly; 22. Leveling structure; 221. Upper rotating wheel assembly; 222. Lower rotating wheel assembly; 223. First cylinder; 23. Conveying structure; 231. Conveying drive wheel; 232. Conveying driven wheel; 233. Fourth motor; 234. Second cylinder; 24. Pressure plate structure; 241. Upper clamping plate; 242. Lower clamping plate; 3. Cutting and stamping mechanism; 31. Upper cutting die assembly; 32. Lower cutting die assembly; 33. Third drive mechanism 331. Third linear guide rail; 332. Fifth motor; 333. Fifth mounting plate; 334. Third eccentric rotating component; 335. Third connecting rod; 4. Strip bending mechanism; 41. First bending mechanism; 411. Rotary bending rod; 412. Positioning block; 4121. Positioning surface; 4122. Clearance groove; 4123. Limiting slot; 4124. Movable groove; 4125. Clearance groove; 4126. Constant pressure countersunk hole; 4127. Limiting hole; 4128. Limiting strip hole; 4129. Second countersunk groove; 413. First drive mechanism; 4131. First motor; 4132. First mounting plate; 413 3. Second mounting plate; 4134. Second drive mechanism; 41341. Second motor; 41342. First eccentric rotating component; 41343. First connecting rod; 414. First linear guide rail; 415. Coupling; 416. Bearing housing; 417. First detection sensor; 418. First detection component; 419. Second detection sensor; 420. Second detection component; 42. Second bending mechanism; 421. Stamped bending rod; 4211. Arched groove; 4212. Pressing block; 422. Third motor; 423. Second linear guide rail; 424. Third mounting plate; 425. Second eccentric rotating component; 42 6. Second connecting rod; 427. Third detection sensor; 428. Third detection component; 43. Limiting rotating rod; 431. First settling trough; 44. First spring; 45. Constant pressure block; 451. Perforation; 46. Second spring; 47. First limiting post; 48. Third spring; 49. Second limiting post; 5. Cable tie feeding mechanism; 51. Vibratory feeder; 52. Feeding track; 53. Straight vibrator; 6. Strap pulling mechanism; 61. Pneumatic gripper; 62. Fourth drive mechanism; 621. Bracket; 622. Fourth linear guide; 623. Sixth motor; 624. Sixth mounting plate; 625. Lead screw; 63. Discharge guide. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] like Figure 1 As shown, an automatic metal cable tie assembly machine includes a frame 1 and a cable tie feeding mechanism 2 for conveying continuous cable ties, a cutting and stamping mechanism 3 for cutting and buckling the cable ties to form strips, a strip bending mechanism 4 for bending one end of the strip, a cable tie head feeding mechanism 5 for continuously conveying cable tie heads, located on one side of the strip bending mechanism 4, and a cable tie pulling mechanism 6 for pulling the strip forward, located next to the strip bending mechanism 4.

[0031] like Figure 2 , 5 As shown in Figures 7 and 8, the strip bending mechanism 4 includes a first bending mechanism 41 capable of rotating and bending the strip and a second bending mechanism 42 capable of stamping and bending the strip. The first bending mechanism 41 includes a rotating bending rod 411, a positioning block 412 located on one side of the rotating bending rod 411, and a first driving mechanism 413 that drives the rotating bending rod 411 to extend, retract, and rotate. The rotating bending rod 411 has a gap for the strip to pass through, and the front end of the positioning block 412 has a positioning surface 4121 and a relief groove 4122 adapted to the rotating bending rod 411.

[0032] like Figure 5 As shown, the first drive mechanism 413 includes a first motor 4131 whose output end is fixedly connected to a rotary bending rod 411, a first mounting plate 4132 fixedly connected to one side of the first motor 4131, a second mounting plate 4133 linearly slidably connected to the first mounting plate 4132, and a second drive mechanism 4134 capable of driving the first mounting plate 4132 to slide on the second mounting plate 4133 closer to or away from the positioning block 412. A first linear guide rail 414 is installed between the first mounting plate 4132 and the second mounting plate 4133. The slider of the first linear guide rail 414 is fixedly connected to the first mounting plate 4132, providing guidance for the sliding of the first mounting plate 4132. The second drive mechanism 4134 includes a second motor 41341 mounted on a second mounting plate 4133, a first eccentric rotating member 41342 mounted on the output shaft of the second motor 41341, and a first connecting rod 41343 rotatably connected to the first eccentric rotating member 41342 and the first mounting plate 4132 respectively. The second motor 41341 converts the rotational motion into the linear motion of the first mounting plate 4132 through the first eccentric rotating member 41342 and the first connecting rod 41343.

[0033] like Figure 5 As shown, the output end of the first motor 4131 is connected to the rotary bending rod 411 via a coupling 415. The end of the rotary bending rod 411 near the first motor 4131 is rotatably connected to a bearing seat 416 mounted on the first mounting plate 4132. A first detection sensor 417 for detecting the rotational position of the rotary bending rod 411 is mounted on one side of the bearing seat 416. A first detection element 418 that cooperates with the first detection sensor 417 is mounted on the rotary bending rod 411. A second detection sensor 419 located on one side of the first eccentric rotating member 41342 is mounted on the second mounting plate 4133. A second detection element 420 that cooperates with the second detection sensor 419 is mounted on the first eccentric rotating member 41342.

[0034] like Figure 1 , 5 As shown, a vertical wall plate 11 is installed on the workbench of the frame 1, a second mounting plate 4133 is horizontally fixed on the vertical wall plate 11, a positioning block 412 is fixedly installed on the second mounting plate 4133, and the material feeding mechanism 2, the cutting and punching mechanism 3 and the second bending mechanism 42 are all installed on the vertical wall plate 11, realizing the centralized installation of each core mechanism.

[0035] like Figure 6 As shown, the second bending mechanism 42 includes a vertically arranged stamped bending rod 421, a third motor 422 mounted on a vertical wall plate 11, and a second linear guide 423. A third mounting plate 424 is mounted on the slider of the second linear guide 423. The upper end of the stamped bending rod 421 is fixedly mounted on the third mounting plate 424. A second eccentric rotating component 425 is mounted on the output shaft of the third motor 422. The second eccentric rotating component 425 is rotatably connected to the third mounting plate 424 by a second connecting rod 426. A third detection sensor 427 is mounted on the vertical wall plate 11 next to the second eccentric rotating component 425. A third detection component 428 that cooperates with the third detection sensor 427 is mounted on the second eccentric rotating component 425. The lower end of the stamped bending rod 421 can abut against the positioning surface 4121 and is provided with an arched groove 4211 that corresponds to and cooperates with the clearance groove 4122.

[0036] like Figure 6-9As shown, the rear end of the positioning block 412 is provided with a limiting groove 4123 for feeding the cable tie head. The inner side of the limiting groove 4123 is connected to a movable groove 4124. The positioning block 412 is rotatably connected to a limiting rod 43 on both sides of the movable groove 4124 via a pin. The upper end of the limiting rod 43 can abut against the bottom wall of the movable groove 4124, and the lower end has a movable gap with the bottom wall of the movable groove 4124. The lower end of the limiting rod 43 is provided with a first recess 431 facing the movable groove 4124. The bottom wall of the movable groove 4124 is provided with a second recess 4129 corresponding to the position of the first recess 431. A first spring 44 is installed between the first recess 431 and the second recess 4129. Above the limiting groove 4123 and the movable groove 4124, there is also a relief groove 4125 for feeding the cable tie and the cable tie head. The upper side of the relief groove 4125 is provided above the limiting groove 4123. A pressure-reducing hole 4126 is provided, and a pressure-reducing block 45 is slidably connected inside the pressure-reducing hole 4126. The upper end of the pressure-reducing block 45 extends horizontally, and a second spring 46 is fitted into the lower end of the pressure-reducing block 45 and accommodated inside the pressure-reducing hole 4126. A through hole 451 is provided at the upper end of the pressure-reducing block 451, and a first limiting post 47 is slidably connected to the through hole 451. A limiting hole 4127 is provided on the positioning block 412 for the first limiting post 47 to slide vertically, and a sleeve is provided on the first limiting post 47. There is a third spring 48, the upper end of which abuts against the upper end of the first limiting post 47 and the lower end of which abuts against the pressure block 45. The side of the positioning block 412 is provided with a limiting strip hole 4128 that communicates with the limiting hole 4127. The limiting strip hole 4128 is provided with a second limiting post 49 that is detachably connected to the lower end of the first limiting post 47. The stamped bending rod 421 is provided with a pressing block 4212 that can abut against the first limiting post 47.

[0037] like Figure 1 , 3 As shown, the material feeding mechanism 2 includes a correction structure 21 for guiding the material belt, a leveling structure 22 for leveling the material belt, a conveying structure 23 for driving the material belt forward, and a pressure plate structure 24 for limiting and guiding. The correction structure 21 includes a fourth mounting plate 211 mounted on the vertical wall plate 11, a horizontal correction wheel assembly 212 mounted on the fourth mounting plate 211, and a vertical correction wheel assembly 213 mounted on the fourth mounting plate 211. The leveling structure 22 includes an upward rotating... The upper rotating wheel assembly 221, the lower rotating wheel assembly 222, and the first cylinder 223 capable of driving the upper rotating wheel assembly 221 to rise and fall; the transmission structure 23 includes a transmission drive wheel 231, a transmission driven wheel 232, and a fourth motor 233 connected to the transmission drive wheel 231, all mounted on the vertical wall plate 11; the transmission driven wheel 232 is connected to a second cylinder 234 capable of driving it to rise and fall; the pressure plate structure 24 includes an upper clamping plate 241 and a lower clamping plate 242 mounted on the vertical wall plate 11.

[0038] like Figure 1 ,4 As shown, the cutting and stamping mechanism 3 includes an upper cutting module 31, a lower cutting template 32, and a third drive mechanism 33 that can drive the upper cutting module 31 to perform lifting and stamping. The third drive mechanism 33 includes a third linear guide rail 331 and a fifth motor 332. A fifth mounting plate 333 is mounted on the slider of the third linear guide rail 331. A third eccentric rotating component 334 is mounted on the output shaft of the fifth motor 332. The third eccentric rotating component 334 and the fifth mounting plate 333 are rotatably connected by a third connecting rod 335. The lower end of the fifth mounting plate 333 is connected to the upper cutting module 31. The upper cutting module 31 has an I-shaped cutting punch and a snap-fit ​​punch at its bottom. The I-shaped cutting punch is used to stamp the beginning and end of the strip, so that the beginning of the strip forms a conical surface and the end forms a flat surface.

[0039] like Figure 1 , 10 As shown, the cable tie feeding mechanism 5 includes a vibratory plate 51 mounted on the frame 1, a feeding track 52 connected to the discharge port of the vibratory plate 51, and a straight vibrator 53 connected to the lower end of the feeding track 52. The position of the discharge port of the feeding track 52 corresponds to the position of the limiting slot 4123, so that the cable tie head can be smoothly transferred into the limiting slot 4123.

[0040] like Figure 1 , 11 As shown, the belt pulling mechanism 6 includes a pneumatic gripper 61 capable of pulling the belt forward and a fourth drive mechanism 62 capable of moving the pneumatic gripper 61. The fourth drive mechanism 62 includes a bracket 621 mounted on the frame 1, a fourth linear guide rail 622 mounted on the bracket 621, and a sixth motor 623. A sixth mounting plate 624 is mounted on the slider of the fourth linear guide rail 622. The output shaft of the sixth motor 623 is connected to a lead screw 625, which is threadedly connected to the sixth mounting plate 624. The pneumatic gripper 61 is mounted on the sixth mounting plate 624. A discharge guide rail 63 for finished product discharge is mounted below the pneumatic gripper 61.

[0041] In the above embodiments, servo motors are preferred to improve control accuracy.

[0042] The workflow of the automatic metal cable tie assembly machine in this embodiment is as follows: The cable tie head feeding mechanism 5 conveys the cable tie head to the limiting slot 4123 of the positioning block 412; the strip is corrected and leveled by the strip feeding mechanism 2 and then conveyed to the cutting and stamping mechanism 3 and passes through the cable tie head. The cutting and stamping mechanism 3 cuts the strip and stamps it to form a strip; the pneumatic gripper 61 of the pulling mechanism 6 clamps the strip and pulls it forward to the strip bending machine 4; the second drive mechanism 4134 of the first bending mechanism 41 drives the rotary bending rod 411 to approach the positioning block 412, and the first motor 4131 of the first drive mechanism 413 rotates to drive the rotary bending rod 411 to rotate and perform rotary bending on the strip. Then, the second drive mechanism 4134 drives the rotary bending rod 411 away from the positioning block 412; the pulling mechanism 6 pulls the strip forward until the bending end of the strip is located in the stamping bending machine. The bending rod 421 stops below; the third motor 422 of the second bending mechanism 42 drives the stamping bending rod 421 to move downward, performing a stamping bending of the strip, while driving the pressing block 4212 to press against the first limiting post 47 and finally causing the fixed pressure block 45 to press against the cable tie head. After the stamping bending is completed, the stamping bending rod 421 moves upward a short distance and stops. The pulling mechanism 6 continues to pull the strip forward until the strip and the cable tie head are snapped together. The stamping bending rod 421 moves upward to the initial position. The fixed pressure block 45 resets upward and retracts under the action of the second spring 46 and the third spring 48, no longer pressing against the cable tie head. Finally, the pulling mechanism 6 pulls out the finished product. The cable tie head drives the limiting rotating rod 43 to rotate and disengage from the limiting slot 4123. When the strip is pulled above the discharge guide rail 63, the pneumatic gripper 61 releases the strip and finally discharges it through the discharge guide rail 63. This utility model simplifies the structure of the first drive mechanism 413, reduces the number of parts and the complexity of linkage, thereby reducing the failure rate; by centrally installing each core mechanism on the vertical wall plate 11, the overall layout of the machine is optimized and maintenance is facilitated.

Claims

1. An automatic metal cable tie assembly machine, comprising a frame and a cable tie feeding mechanism for conveying continuous cable ties, a cutting and stamping mechanism for cutting and snapping the cable ties into strips, a strip bending mechanism for bending one end of the strip, a cable tie head feeding mechanism for continuously conveying cable tie heads and located on one side of the strip bending mechanism, and a cable tie pulling mechanism for pulling the strip forward, located on one side of the strip bending mechanism; the strip bending mechanism includes a first bending mechanism capable of rotary bending of the strip and a second bending mechanism capable of stamping bending, the first bending mechanism including a rotary bending rod, a positioning block located on one side of the rotary bending rod, and a first driving mechanism for extending, retracting, and rotating the rotary bending rod, the rotary bending rod having a gap for the strip to pass through, and the positioning block having a positioning surface and a clearance groove adapted to the rotary bending rod at its front end, characterized in that: The first drive mechanism includes a first motor whose output end is fixedly connected to a rotary bending rod, a first mounting plate fixedly connected to one side of the first motor, a second mounting plate linearly slidably connected to the first mounting plate, and a second drive mechanism capable of driving the first mounting plate to slide closer to or further away from the positioning block on the second mounting plate.

2. The automatic metal cable tie assembly machine according to claim 1, characterized in that: A first linear guide rail is installed between the first mounting plate and the second mounting plate. The slider of the first linear guide rail is fixedly connected to the first mounting plate. The second driving mechanism includes a second motor mounted on the second mounting plate, a first eccentric rotating component mounted on the output shaft of the second motor, and a first connecting rod rotatably connected to the first eccentric rotating component and the first mounting plate respectively.

3. The automatic metal cable tie assembly machine according to claim 2, characterized in that: The output end of the first motor is connected to the rotary bending rod via a coupling. The end of the rotary bending rod near the first motor is rotatably connected to a bearing seat mounted on a first mounting plate. A first detection sensor for detecting the rotational position of the rotary bending rod is mounted on one side of the bearing seat. A first detection element that cooperates with the first detection sensor is mounted on the rotary bending rod. A second detection sensor is mounted on one side of the first eccentric rotating component on the second mounting plate. A second detection element that cooperates with the second detection sensor is mounted on the first eccentric rotating component.

4. An automatic metal cable tie assembly machine according to any one of claims 1-3, characterized in that: A vertical wall panel is installed on the worktable of the frame. The second mounting plate is horizontally fixed on the vertical wall panel. The positioning block is fixedly installed on the second mounting plate. The material feeding mechanism, the cutting and punching mechanism, and the second bending mechanism are all installed on the vertical wall panel.

5. The automatic metal cable tie assembly machine according to claim 4, characterized in that: The second bending mechanism includes a vertically arranged stamped bending rod, a third motor mounted on a vertical wall plate, and a second linear guide. A third mounting plate is mounted on the slider of the second linear guide. The upper end of the stamped bending rod is fixedly mounted on the third mounting plate. A second eccentric rotating component is mounted on the output shaft of the third motor. The second eccentric rotating component is rotatably connected to the third mounting plate by a second connecting rod. A third detection sensor is mounted on the vertical wall plate next to the second eccentric rotating component. A third detection component that cooperates with the third detection sensor is mounted on the second eccentric rotating component. The lower end of the stamped bending rod can abut against the positioning surface and is provided with an arched groove that corresponds to the clearance groove.

6. The automatic metal cable tie assembly machine according to claim 5, characterized in that: The positioning block has a limiting groove at its rear end for feeding the cable tie head. The inner side of the limiting groove is connected to a movable groove. The positioning block is rotatably connected to a limiting rod on both sides of the movable groove via pins. The upper end of the limiting rod can abut against the bottom wall of the movable groove, while the lower end has a clearance with the bottom wall of the movable groove. The lower end of the limiting rod facing the movable groove has a first recessed groove. The bottom wall of the movable groove has a second recessed groove corresponding to the position of the first recessed groove. A first spring is installed between the first and second recessed grooves. Above the limiting groove and the movable groove, there is also a clearance groove for the cable tie head and strap to be pulled out. The upper side of the clearance groove, located above the limiting groove, has a pressure-regulating hole. A pressure-regulating block is slidably connected inside the pressure-recessing hole. The upper end of the pressure-regulating block extends horizontally, and a second spring is fitted into the pressure-regulating hole at the lower end of the pressure-regulating block. A through hole is provided at the upper end of the pressure-regulating block, and a first limiting post is slidably connected to the through hole. A limiting hole is provided on the positioning block for the first limiting post to slide vertically. A third spring is fitted over the first limiting post. The upper end of the third spring abuts against the upper end of the first limiting post, and the lower end abuts against the pressure-regulating block. A limiting strip hole communicating with the limiting hole is provided on the side of the positioning block. A second limiting post detachably connected to the lower end of the first limiting post passes through the limiting strip hole. A pressing block that can abut against the first limiting post is provided on the stamped bending rod.

7. The automatic metal cable tie assembly machine according to claim 6, characterized in that: The material feeding mechanism includes a correction structure for guiding the material belt, a leveling structure for leveling the material belt, a conveying structure for driving the material belt forward, and a pressure plate structure for limiting and guiding. The correction structure includes a fourth mounting plate mounted on a vertical wall panel, a horizontal correction wheel assembly and a vertical correction wheel assembly mounted on the fourth mounting plate. The leveling structure includes an upper rotating wheel assembly, a lower rotating wheel assembly, and a first cylinder capable of driving the upper rotating wheel assembly to rise and fall, all mounted on the vertical wall panel. The conveying structure includes a conveying drive wheel, a conveying driven wheel, and a fourth motor connected to the conveying drive wheel, all mounted on the vertical wall panel. The conveying driven wheel is connected to a second cylinder capable of driving it to rise and fall. The pressure plate structure includes an upper clamping plate and a lower clamping plate mounted on the vertical wall panel.

8. The automatic metal cable tie assembly machine according to claim 7, characterized in that: The cutting and stamping mechanism includes an upper cutting module, a lower cutting template, and a third drive mechanism that can drive the upper cutting module to perform lifting and stamping on a vertical wall panel. The third drive mechanism includes a third linear guide rail and a fifth motor. A fifth mounting plate is mounted on the slider of the third linear guide rail. A third eccentric rotating component is mounted on the output shaft of the fifth motor. The third eccentric rotating component is rotatably connected to the fifth mounting plate by a third connecting rod. The lower end of the fifth mounting plate is connected to the upper cutting module.

9. An automatic metal cable tie assembly machine according to claim 8, characterized in that: The cable tie feeding mechanism includes a vibratory plate mounted on the frame, a feeding track connected to the discharge port of the vibratory plate, and a straight vibrator connected to the lower end of the feeding track. The position of the discharge port of the feeding track corresponds to the position of the limiting slot, so that the cable tie head can be smoothly transferred into the limiting slot.

10. An automatic metal cable tie assembly machine according to claim 9, characterized in that: The belt pulling mechanism includes a pneumatic gripper capable of pulling the belt forward and a fourth drive mechanism capable of moving the pneumatic gripper. The fourth drive mechanism includes a bracket mounted on the frame, a fourth linear guide rail mounted on the bracket, and a sixth motor. A sixth mounting plate is mounted on the slider of the fourth linear guide rail. The output shaft of the sixth motor is connected to a lead screw, which is threadedly connected to the sixth mounting plate. The pneumatic gripper is mounted on the sixth mounting plate. A discharge guide rail for finished product discharge is mounted below the pneumatic gripper.

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