Ribbon binding machine

Abstract

The utility model provides a ribbon binding machine, including automatic feeding system and automatic binding system, automatic feeding system includes feeding unit, distributing unit and conveying unit, distributing unit is located the feeding unit and conveying unit, automatic binding system includes body, cam module, motor, upper hook module, lower hook module and gear module, the motor is located in the feeding unit, the motor is located in the feeding unit, the motor is located in the conveying unit, and the gear module is located in the conveying unit. The conveying unit is located between the material distributing unit and the body of the automatic binding system. The ribbon binding machine has the advantages of being simple and stable in structure, convenient to control, high in binding speed and high in efficiency, and is particularly suitable for being used on a ribbon binding full-automatic production line.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of wire packing, especially to a strap binding machine. BACKGROUND

[0002] For some wire products (such as cables, etc.), in the production assembly process or after processing, in order to facilitate production and transportation (semi-finished products) or save packaging volume (finished products), it is necessary to bind the wire with straps. At present, most manufacturers mainly rely on manual installation of straps on simple tooling one by one, and then use simple tooling for manual binding of straps, which is low in efficiency and high in cost. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide a strap binding machine with high production efficiency.

[0004] To solve the above technical problem, the utility model provides a strap binding machine, which comprises an automatic feeding system and an automatic binding system; the automatic feeding system comprises a feeding unit, a distribution unit and a conveying unit, the distribution unit is located between the feeding unit and the conveying unit; the automatic binding system comprises a body, a cam module, a motor, an upper hook component module, a lower hook component module and a gear module, the conveying unit is located between the distribution unit and the body; the body has a clamping groove for accommodating a strap head, a through hole for the strap tail to pass through is formed in the groove bottom of the clamping groove; the cam module comprises a main shaft, a composite cam, a power input gear and a power output gear, the main shaft is rotatably installed on the body, the composite cam and the power input gear are fixedly connected to the main shaft, the power output gear is rotatably sleeved on the main shaft, the composite cam has a first cam surface and a second cam surface arranged at intervals, and the first and second cam surfaces are arranged alternately; the motor is in transmission connection with the power input gear; the upper hook component module comprises an upper hook component and an upper swing rod assembly, the upper hook component is rotatably installed on the body and is in relative rotation connection with one end of the upper swing rod assembly, the other end of the upper swing rod assembly is provided with an upper follow-up bearing, and the upper follow-up bearing is located in the working range of the first cam surface; the lower hook component module comprises a lower hook component and a lower swing rod assembly, the lower hook component is rotatably installed on the body and is in relative rotation connection with one end of the lower swing rod assembly, the lower swing rod assembly is rotatably installed on the body and is provided with a lower follow-up bearing, and the lower follow-up bearing is located in the working range of the second cam surface; the gear module is in transmission connection with the power output gear and comprises a first driven gear set and a second driven gear set for clamping and pulling the strap tail.

[0005] Further, the feeding unit comprises a vibration plate and a linear feeder capable of automatically sorting the cable ties, both of which have a cable tie track, and the cable tie track of the linear feeder is connected to the end outlet of the cable tie track of the vibration plate.

[0006] Further, the feeding unit comprises a track body, a pushing assembly, a blocking assembly and a detector; the track body is located at the end of the linear feeder, and a linear cable tie chute is formed in the track body and vertically located at the end outlet of the cable tie track of the linear feeder; the pushing assembly comprises a pushing cylinder, a pushing body and a pushing block, the piston of the pushing cylinder is axially parallel to the cable tie chute, the pushing body is connected to the piston of the pushing cylinder and slidably installed on the track body, and the pushing block is located in the cable tie chute and fixedly connected to the pushing body; the blocking assembly comprises a blocking cylinder and a blocking slider, the piston of the blocking cylinder is axially perpendicular to the cable tie chute, and the blocking slider is located at the free end of the piston of the blocking cylinder; a blocking groove is formed in the track body and connected to the cable tie chute, and the blocking slider passes through the blocking groove.

[0007] Further, the pushing assembly further comprises a cable tie cover plate, a guide groove is formed in the pushing body and parallel to the cable tie chute, the cable tie cover plate is located above the pushing block and slidably arranged in the guide groove, and the end of the cable tie cover plate away from the pushing cylinder protrudes downward and covers the top of the cable tie chute.

[0008] Further, the conveying unit comprises a cylinder body, an air inlet pipe and a conveying pipe, the cylinder body is located at the end of the track body away from the pushing cylinder, a cable tie linear channel is formed in the cylinder body and connected to the end outlet of the cable tie chute, a cylinder valve is arranged in the cylinder body and capable of opening / closing the cable tie linear channel, the air inlet pipe is connected to the cable tie linear channel, and the conveying pipe is connected to the end outlet of the cable tie linear channel.

[0009] Further, the remote rest angle of the second cam surface is greater than the sum of the lift angle and the remote rest angle of the first cam surface.

[0010] Further, the cam module further comprises a torque controller for adjusting the output torque of the power output gear, the torque controller comprises a first friction plate, a second friction plate, a spring and a locking nut, the first friction plate is clamped between the power input gear and the power output gear, the second friction plate, the spring and the locking nut are sequentially sleeved on the main shaft away from the composite cam in sequence.

[0011] Further, the upper hook component module further comprises an upper reset spring, one end of the upper reset spring is connected to the body, and the other end of the upper reset spring is connected to one end of the upper swing rod assembly close to the upper follower bearing.

[0012] Further, a bearing swing groove is formed on the upper swing rod assembly close to the upper follower bearing, and an end of the upper follower bearing protrudes out of the bearing swing groove as a swing column which can swing in the bearing swing groove. In the initial state, the distance L between the groove bottom of the bearing swing groove and the center of the composite cam rotating shaft satisfies the following relationship: L≥R1+R2+R3, wherein R1 represents the maximum radius of the first cam surface, R2 represents the radius of the upper follower bearing, and R3 represents the radius of the end column of the upper follower bearing.

[0013] Further, the upper swing rod assembly comprises a first swing rod and a second swing rod, one end of the first swing rod is pivotally connected to the body, and the other end of the first swing rod is relatively rotatable and slidable connected to the upper hook component, one end of the second swing rod is pivotally connected to the body, and the other end of the second swing rod is relatively rotatable and slidable connected to the other end of the first swing rod, and the upper follower bearing is installed on the second swing rod.

[0014] Further, an upper follower swing rod and an upper reset torsional spring for resetting the upper follower bearing are arranged at the end of the upper swing rod assembly away from the upper hook component, the upper follower swing rod is rotatably installed on the upper swing rod assembly, the upper follower bearing is installed on the free end of the upper follower swing rod, and the upper reset torsional spring is sleeved on the rotating shaft of the upper follower swing rod.

[0015] Further, the lower swing rod assembly is provided with a blocking rod on one side of the lower follower bearing for limiting the swing amplitude of the lower follower bearing.

[0016] Further, the lower hook component module further comprises a lower reset torsional spring, the body is provided with a spring abutting pin close to the end of the lower swing rod assembly, and the lower reset torsional spring is sleeved on the rotating shaft of the lower swing rod assembly and clamped between the end of the lower swing rod assembly and the spring abutting pin.

[0017] Further, the lower swing rod assembly comprises a connecting rod and a third swing rod, the lower hook component and the third swing rod are pivotally connected to two ends of the connecting rod respectively, the third swing rod is rotatably installed on the body, and the lower follower bearing is located at one end of the third swing rod.

[0018] Further, the lower swing rod assembly is provided with a lower follow-up swing rod and a lower reset spring for resetting the lower follow-up bearing, the lower follow-up swing rod is rotatably installed on the lower swing rod assembly, the lower follow-up bearing is installed on one end of the lower follow-up swing rod, and the other end of the lower follow-up swing rod is connected with one end of the lower reset spring, and the other end of the lower reset spring is connected with the other end of the lower swing rod assembly away from the lower hook piece.

[0019] Further, the first driven gear set comprises a first driven gear shaft and a first transmission gear and a first binding gear fixed on the first driven gear shaft, the second driven gear set comprises a second driven gear shaft and a second transmission gear and a second binding gear fixed on the second driven gear shaft, the first and second driven gear shafts are rotatably installed on the body, and the teeth of the first binding gear have the same pitch as the self-locking inner teeth on the strap; the gear module further comprises a third driven gear set, the third driven gear set comprises a third driven gear shaft and a third transmission gear and a third binding gear fixed on the third driven gear shaft, the third driven gear shaft is rotatably installed on the body, the third transmission gear is in transmission connection with the power output gear and is in mesh with the first transmission gear at the same time, and the first, second and third binding gears are in a triangular distribution, the first binding gear is located on the inner side of the strap, and the second and third binding gears are located on the outer side of the strap.

[0020] Compared with the prior art, in the strap binding machine, the automatic feeding system can automatically feed the scattered straps one by one to the specified position of the automatic binding system body, the automatic binding system adopts a cam module, the strap binding process is completely completed by the single motor driving the cam module and the gear module through the control program, the whole machine has the characteristics of simple and stable structure, convenient control, fast binding speed and high efficiency, and is particularly suitable for use on a strap binding fully automatic production line. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a three-dimensional schematic view of a preferred embodiment of the utility model.

[0022] Figure 2 is Figure 1 is a three-dimensional schematic view of an automatic feeding system in the utility model.

[0023] Figure 3 is Figure 2 is a three-dimensional schematic view of a feeding unit in the utility model.

[0024] Figure 4 is Figure 2 is a three-dimensional schematic view of a distribution unit in the utility model.

[0025] Figure 5 is Figure 4Partial structure diagram of the middle distributing unit.

[0026] Figure 6 is Figure 4 Diagram of the distributing unit in the initial state of movement.

[0027] Figure 7 is Figure 4 Diagram of the distributing unit in the terminal state of movement.

[0028] Figure 8 is Figure 2 Position diagram of the middle conveying unit.

[0029] Figure 9 is Figure 8 Structure diagram of the conveying unit.

[0030] Figure 10 is Figure 1 Three-dimensional diagram of the automatic binding system.

[0031] Figure 11 is Figure 10 Three-dimensional diagram of the body.

[0032] Figure 12 is Figure 11 Partial structure diagram of the body.

[0033] Figure 13 is Diagram of the tie in the body in the tie rail end position.

[0034] Figure 14 is Figure 10 Power transmission diagram of the motor and cam module.

[0035] Figure 15 is Figure 10 Exploded diagram of the cam module.

[0036] Figure 16 is Figure 10 Transmission diagram of the upper hook component module and compound cam.

[0037] Figure 17 is Figure 16 Structure diagram of the second swing rod and upper swing rod assembly.

[0038] Figure 18 is Figure 17 Diagram of the transmission direction plane of the second swing rod, upper swing rod follow-up assembly and compound cam.

[0039] Figure 19 is Figure 10 Installation transmission diagram of the lower hook component module and compound cam.

[0040] Figure 20 is Figure 19 is a structural schematic diagram of the third swing rod and the lower swing rod follow-up assembly in the third embodiment.

[0041] Figure 21 is Figure 19 is a schematic diagram of the transmission direction plane of the third swing rod and the composite cam shown in the third embodiment.

[0042] Figure 22 is Figure 10 is a structural schematic diagram of the gear module in the third embodiment.

[0043] Figure 23 is Figure 22 is a structural schematic diagram of the gear module in another angle shown in the third embodiment.

[0044] Figure 24 is Figure 22 is a schematic diagram of the process of the strap binding shown in the third embodiment.

[0045] Figure 25 is Figure 10 is a schematic diagram of the third embodiment in the initial state.

[0046] Figure 26 is Figure 25 is a schematic diagram of the third embodiment when the product to be bound is put in.

[0047] Figure 27 is Figure 26 is a schematic diagram of the third embodiment in the state of the lower hook closing.

[0048] Figure 28 is Figure 27 is a schematic diagram of the third embodiment when the strap is sent into position.

[0049] Figure 29 is Figure 28 is a schematic diagram of the third embodiment when the tail of the strap is moved by the rotation of the upper hook.

[0050] Figure 30 is Figure 29 is a schematic diagram of the third embodiment when the strap is moved by the gear module.

[0051] Figure 31 is Figure 30 is a schematic diagram of the third embodiment when the strap is reversely withdrawn by the motor. DETAILED DESCRIPTION

[0052] In order to make the utility model purposes, technical solutions and advantages more clearly, the following will be further described in detail with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0053] Please refer to Figure 1 , it is a preferred embodiment of the utility model, the strapping machine is mainly suitable for automatic feeding and binding of nylon strapping, including automatic feeding system A located in the front section and automatic binding system B located in the rear section.

[0054] Please refer to Figure 2 , the automatic feeding system includes a feeding unit, a distribution unit and a conveying unit, and the distribution unit is located between the feeding unit and the conveying unit.

[0055] Please refer to Figure 3 , the feeding unit includes a vibrating disc A1 and a linear feeder A2. The vibrating disc A1 can automatically sort the strapping I, which has a strapping track A101. During production, a certain number of strapping I is scattered into the vibrating disc A1, and the vibrating disc A1 vibrates. The strapping I can be sorted during the conveying process in the strapping track A101 of the vibrating disc A1, and orderly sent out at the end of the strapping track A101 of the vibrating disc A1. The linear feeder A2 has a strapping track A201, and the strapping track A201 of the linear feeder A2 is connected to the end outlet of the strapping track A101 of the vibrating disc A1. In this way, the strapping I output from the strapping track A101 of the vibrating disc A1 forms a neat row on the strapping track A201 of the linear feeder A2, and the strapping I keeps the strapping tail outward and the strapping head inward, thereby realizing automatic feeding of the rear section distribution unit.

[0056] Please refer to Figure 4 and Figure 5 , the distribution unit is located between the feeding unit and the rear conveying unit, and is used to distribute the whole row of strapping I at the end of the feeding unit one by one, and then send the single strapping I to the conveying unit in the rear section. The distribution unit includes a track body A3, a pushing assembly, a blocking assembly and a detector.

[0057] The track body A3 is located at the end of the linear feeder A2, and a linear strapping chute A301 is formed at the top of the track body A3. The strapping chute A301 is vertically located at the end outlet of the strapping track A201 of the linear feeder A2, and the strapping I can move linearly along the strapping chute A301.

[0058] The pushing assembly comprises a pushing cylinder A4, a pushing body A5 and a pushing block A6. The piston of the pushing cylinder A4 is axially parallel to the strap chute A301. The pushing body A5 is connected with the piston of the pushing cylinder A4 and is slidably mounted on the track body A3. In this embodiment, the pushing body A5 is slidably mounted on one of the side walls of the strap chute A301. The pushing block A6 is located in the strap chute A301 and is fixed to the pushing body A5. The pushing cylinder A4 can drive the pushing body A5 and the pushing block A6 to move together along the strap chute A301. In order to prevent the strap I from being bent upward, the pushing assembly further comprises a strap cover plate A7. A guide groove is formed through the pushing body A5. The guide groove is parallel to the strap chute A301. The strap cover plate A7 is located above the pushing block A6 and is slidably arranged in the guide groove. The strap cover plate A7 can move linearly relative to the pushing body A5. The end of the strap cover plate A7 away from the pushing cylinder A4 protrudes downward and covers the slot surface of the strap chute A301. In this way, the strap cover plate A7 covers the strap I during the pushing process, thereby preventing the strap I from being bent upward. In addition, the pushing assembly further comprises a cover plate return spring A8. The two ends of the cover plate return spring A8 are respectively connected with the strap cover plate A7 and the pushing body A5. In this embodiment, the top of the pushing body A5 and the top of the strap cover plate A7 are provided with spring connecting columns. The two ends of the cover plate return spring A8 are respectively sleeved on the spring connecting columns.

[0059] The blocking assembly comprises a blocking cylinder A9 and a blocking slider A10. The blocking cylinder A9 is fixed to one side of the track body A3. The piston of the blocking cylinder A9 is axially perpendicular to the strap chute A301. The blocking slider A10 is located at the free end of the piston of the blocking cylinder A9. A blocking slot is formed on the track body A3 at a position corresponding to the blocking slider A10. The blocking slot is connected with the strap chute A301 to allow the blocking slider A10 to pass through. When the blocking cylinder A9 is extended, the blocking slider A10 can move along the blocking slot. When the blocking slider A10 moves beyond the slot surface of the strap chute A301 corresponding to the track body A3, the blocking slider A10 can block the strap head. At this time, the strap I cannot move linearly along the strap chute A301. In this embodiment, the blocking assembly is mounted on one side of the track body A3. The blocking slider A10 has a blocking column A1001 protruding out of the blocking slot at a position corresponding to the blocking slot. The cross sections of the blocking slot and the blocking column A1001 are square. The blocking column A1001 extends horizontally. When the blocking slider A10 moves, the blocking column A1001 blocks the strap head. In addition, the blocking assembly further comprises a slider return spring A11. The two ends of the slider return spring A11 are respectively abutted against the blocking slider A10 and the track body A3. When the blocking cylinder A9 is retracted, the blocking slider A10 can be reset under the action of the slider return spring A11. When the blocking slider A10 moves without exceeding the slot surface of the strap chute A301, the strap I can move linearly along the strap chute A301.

[0060] The detector has a detection optical fiber A12, which corresponds to the initial position of the strap I in the strap chute A301. In this embodiment, the detection system also includes an optical fiber mounting frame A13, which is fixed to one side of the track body A3, and the detection optical fiber A12 is fixed to the optical fiber mounting frame A13.

[0061] Please refer to Figure 6 and Figure 7 , the action process of the above-mentioned material distribution unit is as follows:

[0062] As shown in Figure 6 , the initial state of the material distribution movement, the strap I enters the strap chute A301 of the track body A3. At this time, corresponding to the strap I direction of the strap track A201 end outlet of the front straight line feeder A2, the strap tail is in front and the strap head is behind, at this time the strap head is positioned between the pushing block A6, the blocking slide block A10 and the strap cover plate A7.

[0063] As shown in Figure 7 , when the detection optical fiber A12 detects the strap I in place, at this time the blocking slide block A10 is retracted, the pushing cylinder A4 pushes the pushing assembly, so that the pushing body A5, the pushing block A6 and the strap cover plate A7 are stretched forward. The pushing block A6 at one end pushes the strap I to move forward together until the strap tail part is sent into the rear conveying unit. When the pushing assembly pushes the strap I forward, the strap cover plate A7 always covers the strap I to prevent the strap I from being raised upward. When the strap tail has entered the rear conveying unit, the strap cover plate A7 first hits the inlet part of the conveying unit. Since the strap cover plate A7 is relatively slidably arranged in the guide groove of the pushing body A5, at this time although the strap cover plate A7 is blocked, the pushing block A6 can still continue to push the strap I forward under the drive of the pushing cylinder A4 until the pushing cylinder A4 runs to the end point. In this way, the strap I can be completely sent to the specified position of the rear conveying unit. When the pushing cylinder A4 moves back, it can drive the pushing body A5, the pushing block A6 and the strap cover plate A7 of the pushing assembly to move back together, and when the pushing assembly exits the conveying unit, the strap cover plate A7 and the pushing block A6 can recover to the original initial relative position under the action of the cover plate reset spring A8. Finally, when the pushing cylinder A4 moves back to the initial position, the whole material distribution unit returns to the initial state.

[0064] Please refer to Figure 8 and Figure 9The conveying unit is connected between the distributing unit and the automatic binding system in the rear section, and is used to convey the one strap I distributed by the front section to the designated position of the automatic binding system in the rear section. The conveying unit can automatically form a conveying pipeline with a single outlet, and can also provide high-speed movement power for the forward movement of the strap I. The conveying unit comprises a cylinder body A14, an air inlet pipe A15 and a conveying pipe A16.

[0065] The cylinder body A14 is located at the end of the track body A3 away from the pushing cylinder A4, and a strap linear channel A1401 is formed in the cylinder body A14. The strap linear channel A1401 is connected to the end outlet of the strap chute A301, and a cylinder valve A17 is arranged in the cylinder body A14 to open / close the strap linear channel A1401. In this embodiment, a valve channel is also formed in the cylinder body A14, which is perpendicular to the strap linear channel A1401 and communicates with the strap linear channel A1401. The cylinder valve A17 is slidably arranged in the valve channel and is connected to a valve cylinder A18. The air inlet pipe A15 communicates with the strap linear channel A1401, and can be externally connected to a high-pressure gas source (not shown in the figure), which can be used as the power source for the movement of the strap I in the conveying pipe A16. One end of the conveying pipe A16 is connected to the end outlet of the strap linear channel A1401, and the other end can be connected to the inlet of the automatic binding system in the rear section. In this embodiment, the cross section of the strap linear channel A1401 is square, and the four sides of the inlet are chamfered to facilitate the entry of the strap I. The end of the strap linear channel A1401 is a thin-walled pipe with a small outer diameter, and the conveying pipe A16 is sleeved on the thin-walled pipe. The design of the thin-walled pipe facilitates the quick plug-in connection of the conveying pipe A16. The conveying pipe A16 can be a plastic hose, which can be bent and its length can be determined according to actual needs to ensure flexible connection between the cylinder body A14 and the automatic binding system in the rear section. In this embodiment, the cross sections of the thin-walled pipe and the conveying pipe A16 are also square, and the shape of the conveying pipe A16 is similar to that of the strap head but slightly larger in size to ensure smooth movement of the strap I during conveying but without change in the direction of the strap I at the inlet and outlet positions. The shape of the strap linear channel A1401 is similar to that of the strap head but slightly larger in size to ensure that the strap I can easily enter and exit the strap linear channel A1401 during movement but will not be twisted inside the strap linear channel A1401 to ensure consistent orientation of the strap I. In this embodiment, the valve channel is located below the strap linear channel A1401, and the cross section thereof is also square. The air inlet is located on the cylinder body A14 near the side of the cylinder valve A17. The shape of the cylinder valve A17 is consistent with that of the valve channel, and the valve cylinder A18 is installed below the cylinder valve A17 to drive the cylinder valve A17 to reciprocate in the valve channel.

[0066] The working process of the conveying unit is as follows:

[0067] At the beginning, the cylinder valve A17 is opened (the cylinder valve A17 is in the lower position), the distribution unit pushes a strap I into the cylinder valve A17, and the strap I is pushed to a position beyond the cylinder valve A17 and the air inlet of the cylinder body A14. Then, the pushing block A6 of the distribution unit is withdrawn, the cylinder valve A17 is extended to seal the entrance of the straight strap channel A1401. The air inlet pipe A15 is connected to high-pressure gas, at this time, the cylinder body A14 and the delivery pipe A16 form a semi-closed pipeline. The high-pressure gas is located between the cylinder valve A17 and the strap head, so that the high-pressure gas entering the cylinder body A14 will push the strap I at the strap head to move at high speed from the cylinder body A14 to the delivery pipe A16, and finally fly out of the delivery pipe A16.

[0068] The working process of the automatic feeding system is as follows:

[0069] A certain amount of straps I are placed in the vibration plate A1, and the straps I are sequentially sent out from the end of the strap track A101 of the vibration plate A1 to the strap track A201 of the straight-line feeder A2 through vibration of the vibration plate A1, forming a neat row, and the straps I keep the strap tail outward and the strap head inward. Then, the straps I enter the strap chute A301 of the track body A3 one by one, and in this process, the detection optical fiber A12 detects that a strap I is in place, the blocking slider A10 is retracted, the pushing cylinder A4 pushes the pushing assembly, the pushing body A5, the pushing block A6 and the strap cover plate A7 are extended forward, the pushing block A6 pushes the strap I to move forward until the strap I is completely sent to the specified position of the strap straight channel A1401 in the cylinder body A14, the pushing cylinder A4 moves back to the initial position, and the distribution unit is reset. Then, the cylinder valve A17 is extended to seal the entrance of the strap straight channel A1401, the air inlet pipe A15 is connected to high-pressure gas, the strap I is pushed by the high-pressure gas to move at high speed in the direction of the delivery pipe A16, and finally, the strap I flies out of the delivery pipe A16 and enters the specified position of the automatic strapping system B in the rear section, thereby completing the automatic feeding.

[0070] Please refer to Figure 10 The automatic strapping system B includes a body B1, a cam module, a motor B2, an upper hook component module, a lower hook component module and a gear module. The delivery unit of the automatic feeding system A is located between the distribution unit and the body B1 of the automatic strapping system B, and is used to deliver a single strap I to the body B1 of the automatic strapping system B.

[0071] Please refer to Figures 11 to 13The body B1 provides installation support for each functional structure of the automatic binding system, and also provides a track for the movement of the binding tape I. In this embodiment, the body B1 has a binding tape track B101 which is a square channel with an open inlet and outlet and a closed other four sides. The bottom of the binding tape track B101 has a clamping groove B102 for accommodating the binding tape head, and the bottom of the clamping groove B102 is provided with a through hole B103 for the binding tape tail to pass through. The binding tape track B101 includes a first groove section B1011 and a second groove section B1012. The cross-sectional size of the first groove section B1011 is larger than the size of the binding tape head, and the entire binding tape I can pass through the first groove section B1011. The cross-sectional size of the second groove section B1012 is larger than the size of the binding tape tail and smaller than the size of the binding tape head. The clamping groove B102 is located between the first and second groove sections B1011, B1012, and its width is consistent with that of the first groove section B1011, and its depth is greater than that of the first groove section B1011. During binding, the binding tape I enters the body B1 from the inlet at one end of the binding tape track B101, and after the entire binding tape I passes through the first groove section B1011, the binding tape head is stopped and clamped in the clamping groove B102, and the binding tape tail passes through the second groove section B1012 and then comes out of the outlet of the binding tape track B101, Figure 13 The state shown is the final binding position of the movement of the binding tape I.

[0072] Please refer to Figure 14 and Figure 15 The cam module includes a rotatable main shaft B3, a composite cam B4, a power input gear B5, a power output gear B6, and a torque controller for adjusting the output torque of the power output gear B6. The motor B2 is in transmission connection with the power input gear B5. In this embodiment, one end of the power output shaft of the motor B2 is fixedly provided with a gear B201, the gear B201 is in meshing connection with an idler gear B202, and the idler gear B202 is in meshing connection with the power input gear B5. The power input gear B5 rotates synchronously with the main shaft B3, is used for receiving the power transmitted by the front motor B2, and transmits the power to the gear module. The composite cam B4 and the main shaft B3 rotate synchronously, and are used for driving the upper hook piece module and the lower hook piece module.

[0073] The main shaft B3 is perpendicular to the strap track B101 and is rotatably arranged on the body B1. In this embodiment, the main shaft B3 is arranged on the body B1 through a bearing B7, which is located between the power input gear B5 and the compound cam B4. The main shaft B3 is fixed to the inner ring of the bearing B7 and can rotate with the inner ring. The outer ring of the bearing B7 is fixed to the body B1, and the inner ring can rotate freely, thereby supporting the rotation of the cam module. The compound cam B4 is located on one side of the body B1 and is fixedly sleeved on the main shaft B3. In this embodiment, the compound cam B4 is connected to the main shaft B3 through a key, and can rotate synchronously with the main shaft B3. The compound cam B4 has a first cam surface B401 and a second cam surface B402 arranged at intervals. The first and second cam surfaces B401 and B402 are arranged at intervals along the axial direction of the compound cam B4, and the remote rest angle of the second cam surface B402 is greater than the sum of the lift angle and the remote rest angle of the first cam surface B401, so as to ensure that the upper hook module and the lower hook module can be in a working state at the same time (details are described below).

[0074] The power input gear B5, the power output gear B6, and the torque controller are located on the other side of the body B1. The power input gear B5 is fixed to the main shaft B3, and the power output gear B6 is located on one side of the power input gear B5 and is rotatably sleeved on the main shaft B3. The torque controller can adjust the output torque of the power output gear B6. During the rotation of the main shaft B3, when the resistance of the power output gear B6 is less than or equal to the torque, the power output gear B6 can rotate synchronously with the main shaft B3; on the contrary, when the resistance of the power output gear B6 is greater than the torque, the power output gear B6 will not rotate with the main shaft B3, thereby achieving the disengagement of the power output gear B6 from the main shaft B3.

[0075] The torsion controller comprises a first friction plate B8, a second friction plate B9, an elastic sheet B10 and a locking nut B11. The first friction plate B8 is clamped between the power input gear B5 and the power output gear B6. The second friction plate B9, the elastic sheet B10 and the locking nut B11 are sequentially sleeved on the main shaft B3 away from the composite cam B4. In addition, the torsion controller further comprises a first isolation pad B12 and a second isolation pad B13, which are sleeved on the main shaft B3. The first isolation pad B12 is clamped between the second friction plate B9 and the elastic sheet B10, and the second isolation pad B13 is clamped between the elastic sheet B10 and the locking nut B11. Specifically, the power input gear B5 side is flat with the first friction plate B8, which can move synchronously with the main shaft B3. The two sides of the first friction plate B8 are flat with the power input gear B5 and the power output gear B6 respectively; the two sides of the power output gear B6 are flat with the first and second friction plates B8 and B9 respectively; the two sides of the second friction plate B9 are flat with the first isolation pad B12 and the power output gear B6 respectively; the two sides of the first isolation pad B12 are flat with the elastic sheet B10 and the second friction plate B9 respectively, which can move axially along the main shaft B3 and rotate synchronously with the main shaft B3; the two sides of the elastic sheet B10 are flat with the first and second isolation pads B12 and B13 respectively; the two sides of the second isolation pad B13 are flat with the locking nut B11 and the elastic sheet B10 respectively, which can move axially along the main shaft B3 and rotate synchronously with the main shaft B3. The locking nut B11 is fixedly connected to the main shaft B3 and can rotate synchronously with the main shaft B3 through the thread.

[0076] The principle of the above-mentioned torsion controller for adjusting the output torque of the power output gear B6 is as follows:

[0077] The power output gear B6 is provided with a first and a second friction plate B8, B9 on both sides, and the outer side of the first and second friction plate B8, B9 is respectively attached to the power input gear B5 and the side of the first isolation pad B12. Since the power input gear B5 and the first isolation pad B12 are synchronously rotated with the main shaft B3, as long as there is a certain pressure between the first isolation pad B12, the second friction plate B9, the power output gear B6, the first friction plate B8 and the power input gear B5 in the axial direction of the main shaft B3, there will be a friction force between them, and the first and second friction plate B8, B9 will rotate with the power input gear B5 and the first isolation pad B12. Similarly, the power output gear B6 will also rotate with the first and second friction plate B8, B9. The rotating force of the power output gear B6 is the friction force between it and the first and second friction plate B8, B9, and the size of the friction force is related to the pressure between these parts. By adjusting the pressure, the rotating torque of the power output gear B6 can be controlled. In the part group sleeved on the main shaft B3, except that the thickness of the elastic sheet B10 can change with the change of pressure, the thickness of the other parts does not change. When they are sequentially sleeved on the main shaft B3, the first friction plate B8 is attached to the power input gear B5 (the power input gear B5 is fixedly connected to the main shaft B3 and is stationary). When the lock nut B11 is screwed inward along the threads of the main shaft B3, the entire group of parts will be tightly attached, and the closer it is, the tighter the elastic sheet B10 is pressed, and the pressure between the parts will increase. Conversely, unscrewing the lock nut B11 will loosen the elastic sheet B10, and the pressure between the parts will decrease. In this way, by adjusting the position of the lock nut B11 at the side end, the pressure between the parts can be changed, and the rotating torque of the power output gear B6 will also change. During the rotation of the main shaft B3, when the resistance of the power output gear B6 is less than or equal to the torque generated by the first and second friction plate B8, B9, the power output gear B6 will rotate synchronously with the main shaft B3. Conversely, when the resistance of the power output gear B6 is greater than the torque generated by the first and second friction plate B8, B9, the power output gear B6 will not rotate with the main shaft B3, realizing the disengagement from the main shaft B3.

[0078] Please refer to Figure 16 and Figure 17The upper hook member module comprises an upper hook member B14, an upper swing lever assembly and an upper reset spring B15. The upper hook member B14 is in the shape of a hook, and is rotatably mounted on the body B1 through an upper hook member pivot B16, and is connected to one end of the upper swing lever assembly in a rotatable manner. The other end of the upper swing lever assembly is provided with an upper swing lever follower assembly, which comprises an upper follower swing lever B17, an upper follower bearing B18 and an upper reset torsion spring B19 for resetting the upper follower bearing B18. The upper follower swing lever B17 is rotatably mounted on the upper swing lever assembly, the upper follower bearing B18 is mounted on the free end of the upper follower swing lever B17, close to the composite cam B4 and within the working range of the first cam curve B401, and the upper reset torsion spring B19 is sleeved on the pivot of the upper follower swing lever B17. One end of the upper reset spring B15 is connected to the body B1, and the other end is connected to one end of the upper swing lever assembly close to the upper swing lever follower assembly.

[0079] Specifically, the upper swing lever assembly comprises a first swing lever B20 and a second swing lever B21. The first swing lever B20 is pivotally connected to the body B1 through a first swing lever pivot B22, and one end thereof is rotatably and slidably connected to the upper hook member B14. The second swing lever B21 is pivotally connected to the body B1 through a second swing lever pivot B23, and one end thereof is rotatably and slidably connected to the other end of the first swing lever B20, and the other end of the second swing lever B21 is connected to the upper reset spring B15. In this embodiment, one end of the first swing lever B20 has a first swing lever waist-shaped groove B2001, the upper hook member B14 has an upper hook member connecting column B1401 protruding therefrom, and the upper hook member connecting column B1401 is located in the first swing lever waist-shaped groove B2001. The second swing lever B21 has a second swing lever waist-shaped groove B2101 at one end, and the other end of the first swing lever B20 has a first swing lever connecting column B2002 protruding therefrom, and the first swing lever connecting column B2002 is located in the second swing lever waist-shaped groove B2101. The upper swing lever follower assembly is mounted on the second swing lever B21. In this embodiment, the upper swing lever follower assembly further comprises a mounting seat B24, which is fixedly mounted on the upper swing lever assembly, the upper follower swing lever B17 is rotatably mounted on the mounting seat B24, and the upper reset torsion spring B19 is clamped between the mounting seat B24 and the pivot of the upper follower bearing B18.

[0080] As shown in Figure 18 , the body B1 is provided with a blocking pin B104, and in the initial state, the second swing lever B21 and the components thereon are close to the blocking pin B104 under the action of the upper reset spring B15. At this time, the upper follower swing lever B17 is in the right limit position under the action of the upper reset torsion spring B19, and the outer surface of the upper follower bearing B18 can just contact the lowest position of the first cam curve B401.

[0081] When the composite cam B4 rotates as shown in Figure 18When the positions shown in (a) and 18(b) are rotated clockwise, the cam raises the curved surface, and the first cam surface B401 on the compound cam B4 drives the upper follower bearing B18 to swing to the right. Since the upper follower rocker arm B17 is already at its rightmost extreme position, the second rocker arm B21 will only rotate counterclockwise (i.e., away from the direction of the compound cam B4) around the second rocker arm pivot B23 along with the upper rocker arm follower assembly. When the compound cam B4 rotates clockwise, the second rocker arm B21 and its components will swing in accordance with the changes in the working surface of the first cam surface B401. During the swinging process of the second rocker arm B21, the second rocker arm waist-shaped groove B2101 on the second rocker arm B21 can drive the first rocker arm connecting column B2002, so that the first rocker arm B20 can rotate clockwise around the first rocker arm pivot B22. Subsequently, the first rocker arm waist-shaped groove B2001 drives the upper hook connecting column B1401, so that the upper hook B14 follows the upper hook pivot B16 and rotates counterclockwise. Thus, when the compound cam B4 rotates clockwise one revolution, the upper hook B14 follows the first cam surface B401 to achieve a certain angle of rotation.

[0082] When the compound cam B4 rotates counterclockwise, the upper hook B14, through a reversing disengagement mechanism, prevents it from swinging along with the compound cam B4. Specifically, a bearing swing groove B2103 (in this embodiment, the bearing swing groove B2103 is located on the second swing rod B21) is provided on the upper swing rod assembly near the upper follower bearing B18. A protruding post B1801, which can swing within the bearing swing groove B2103, protrudes from the end of the upper follower bearing B18 near the bearing swing groove B2103.

[0083] like Figure 18 As shown in (d), the distance L between the bottom of the bearing swing groove B2103 and the axis of rotation of the compound cam B4 satisfies the following relationship: L≥R1+R2+R3. Where R1 represents the maximum radius of the first cam surface B401, R2 represents the radius of the upper follower bearing B18, and R3 represents the radius of the end protrusion B1801 of the upper follower bearing B18. Thus, the upper follower bearing B18 can swing around the swing axis within the bearing swing groove B2103, and when the upper follower bearing B18 is at the highest position of the first cam surface B401 (e.g., when...), the distance L between the bottom of the bearing swing groove B2103 and the axis of rotation of the compound cam B401 is... Figure 18 (d) As shown, it will not touch the limit position of the bearing swing groove B2103 (i.e., the bottom of the bearing swing groove B2103).

[0084] like Figure 18(c) and (d) 18, the initial state, the second pendulum B21 and its components on the role of the upper reset spring B15, next to the blocking pin B104, at this time, the upper follow-up swing B17 in the right limit position under the action of the upper reset torsion spring B19, the outer surface of the upper follow-up bearing B18 can just contact the lowest position of the first cam curve B401. When the composite cam B4 counterclockwise rotation, the cam lifting curve, the first cam curve B401 on the composite cam B4 drive the upper follow-up bearing B18 to swing left. In this process, due to the bearing swing groove B2103 corresponding to this direction is longer (L≥R1+R2+R3), even if the upper follow-up bearing B18 in the highest position of the first cam curve B401, the convex column B1801 on the upper follow-up bearing B18 also does not touch the left limit position of the bearing swing groove B2103, so at this time, only the upper follow-up bearing B18 swing, but the second pendulum B21 will not follow the rotation of the composite cam B4 and follow. Thus, the composite cam B4 clockwise rotation, the second pendulum B21 and the upper hook B14 can follow the rotation; the composite cam B4 counterclockwise rotation, the second pendulum B21 and the upper hook B14 do not move, to realize the follow-up separation. As the whole upper hook module, only need to ensure that the tension torque of the upper reset spring B15 is much larger than the torque of the upper reset torsion spring B19, so that in the process of counterclockwise rotation of the composite cam B4, the second pendulum B21 will always be next to the blocking pin B104 to keep static, only the upper follow-up swing B17 independent swing, so as to realize the separation of the swing bar and the cam.

[0085] In the above composite cam B4 clockwise and counterclockwise rotation process, when the working surface of the composite cam B4 passes through the highest point of the first cam curve B401, the second pendulum B21 can be reset under the action of the upper reset spring B15, so that the second pendulum B21 is next to the blocking pin B104, at the same time, the upper follow-up bearing B18 can be reset under the action of the upper reset torsion spring B19, in the right limit position.

[0086] Please see Figure 19 and Figure 20The lower hook member module comprises a lower hook member B25, a lower swing rod assembly and a lower reset torsion spring B26. The lower hook member B25 is in the shape of a hook, which, together with the upper hook member B14, encloses a binding operation space for the product to be bound to extend into. The upper hook member B14 and the lower hook member B25 are both provided with a recess on the side close to the binding operation space, and the center of the recess is on the same plane as the center of the strap track B101. The lower hook member B25 is rotatably installed on the body B1 through a lower hook member pivot B27, and is rotatably connected to one end of the lower swing rod assembly. The lower swing rod assembly is rotatably installed on the body B1, and is provided with a lower swing rod follower assembly thereon. The lower swing rod follower assembly comprises a lower swing rod follower B28, a lower swing bearing B29 and a lower reset spring B30 for resetting the lower swing bearing B29. The lower swing rod follower B28 is rotatably installed on the lower swing rod assembly, the lower swing bearing B29 is installed on one end of the lower swing rod follower B28 close to the compound cam B4 and located in the working range of the second cam surface B402. One end of the lower reset spring B30 is connected to the other end of the lower swing rod follower B28, and the other end thereof is connected to the other end of the lower swing rod assembly away from the lower hook member B25. The lower swing rod assembly is provided with a blocking rod B31 on the side of the lower swing bearing B29 for limiting the swing amplitude of the lower swing bearing B29, and the lower reset torsion spring B26 is sleeved on the pivot of the lower swing rod assembly. Specifically, the lower swing rod assembly comprises a connecting rod B32 and a third swing rod B33, and the lower hook member B25 and the third swing rod B33 are rotatably pivoted to the two ends of the connecting rod B32 respectively. The third swing rod B33 is rotatably installed on the body B1 through a swing rod pivot B34, and the lower swing rod follower assembly and the blocking rod B31 are located at one end of the third swing rod B33, and the lower reset spring B30 is connected to the other end of the third swing rod B33. The body B1 is provided with a spring abutting pin B105 at a position close to the end of the lower swing rod assembly, and the two sides of the lower reset torsion spring B26 are respectively clamped between the end of the lower swing rod assembly and the spring abutting pin B105.

[0087] As shown in Figure 21 , the body B1 is provided with a blocking pin B106, and in the initial state, the second cam surface B402 of the compound cam B4 is at the lowest position, at this time, under the action of the lower reset torsion spring B26, the third swing rod B33 is close to the blocking pin B106, and the lower swing rod follower B28 is close to the blocking rod B31 on the lower swing rod assembly under the action of the pulling force of the lower reset spring B30, at this time, the lower swing bearing B29 just contacts the lowest position of the second cam surface B402.

[0088] As shown in Figure 21 (a) and 21 (b), when the compound cam B4 is rotated in the clockwise direction as shown in the figure, the lower swing bearing B29 is in contact with the second cam surface B402, and the lower swing rod follower B28 is in contact with the blocking rod B31 on the lower swing rod assembly, and the third swing rod B33 is in contact with the blocking pin B106 on the body B1. Figure 21(a) direction ①), the working surface of the composite cam B4 gradually rises from the lowest surface, the second cam surface B402 drives the lower follower bearing B29 to move away from the composite cam B4 (i.e. towards the blocking rod B31), and the lower follower bearing B29 cannot rotate around its axis due to the blocking of the blocking rod B31, thus driving the third swing rod B33 to rotate counterclockwise (i.e. moving away from the composite cam B4, as shown by the arrow in Figure 21 (a) direction ②), the third swing rod B33 pushes the lower hook B25 to rotate counterclockwise through the connecting rod B32, so that the lower hook B25 rotates counterclockwise (as shown by the arrow in Figure 21 (a) direction ③).

[0089] When the composite cam B4 rotates counterclockwise, the structure of the lower hook B25 automatically separates through the reverse rotation of the lower swing rod assembly, so that the lower hook B25 does not rotate with the composite cam B4. Figure 21 (c) and Figure 21 (d) shows that in the initial state, the second cam surface B402 of the composite cam B4 is at the lowest position, at this time, under the action of the lower reset torsion spring B26, the third swing rod B33 is next to the blocking pin B106, and the lower follower swing rod B28 is next to the blocking rod B31 on the lower swing rod assembly under the tension of the lower reset spring B30, at this time, the lower follower bearing B29 is in contact with the lowest position of the second cam surface B402.

[0090] When the composite cam B4 rotates counterclockwise (as shown by the arrow in Figure 21 (c) direction ⑤), starting from the lowest surface of the second cam surface B402, the second cam surface B402 drives the lower follower bearing B29 to rotate clockwise (i.e. moving away from the cam, i.e. moving away from the blocking rod B31, as shown by the arrow in Figure 21 (c) direction ⑥), the rotation force of the composite cam B4 is greater than the tension of the lower reset spring B30, and the lower follower swing rod B28 rotates around its axis following the composite cam B4, at this time, the third swing rod B33 does not rotate following the composite cam B4, and the connecting rod B32 does not drive the lower hook B25 to swing. Therefore, this structure realizes that when the composite cam B4 rotates clockwise, the third swing rod B33 and the lower hook B25 can swing following; when the composite cam B4 rotates counterclockwise, the third swing rod B33 and the lower hook B25 do not move, thus realizing the separation of the follower. During the counterclockwise rotation of the composite cam B4, as long as the force direction of the lower follower bearing B29 is away from the blocking rod B31, in addition to the rotation of the lower follower swing rod B28 around its axis, the third swing rod B33 and the connecting rod B32, the lower hook B25 will not move following.

[0091] During the clockwise and counterclockwise rotation of the composite cam B4, when the working surface of the composite cam B4 passes the highest point of the second cam surface B402, the third swing lever B33 can be reset under the action of the lower reset torsion spring B26, so that the third swing lever B33 is close to the blocking pin B106, and the lower follower bearing B29 can be reset under the action of the lower reset spring B30, so that the lower follower bearing B29 is close to the blocking lever B31 on the lower swing lever assembly.

[0092] Please see Figure 22 and Figure 23 The gear module is in transmission connection with the power output gear B6, and includes a first driven gear set B35 and a second driven gear set B36 for clamping and pulling the strap tail. The first driven gear set B35 includes a first driven gear shaft B3501 and a first transmission gear B3502 and a first binding gear B3503 fixed on the first driven gear shaft B3501. In the embodiment, the first transmission gear B3502 and the first binding gear B3503 are integrated with the first driven gear shaft B3501, and are arranged in an axial direction. The second driven gear set B36 includes a second driven gear shaft B3601 and a second transmission gear B3602 and a second binding gear B3603 fixed on the second driven gear shaft B3601. In the embodiment, the second transmission gear B3602 and the second binding gear B3603 are integrated with the second driven gear shaft B3601, and are arranged in an axial direction. The first and second driven gear shafts B3501, B3601 are rotatably mounted on the body B1 through bearings, and the teeth of the first binding gear B3503 are the same as the pitch of the self-locking internal teeth on the strap, and the first and second binding gears B3503, B3603 can be engaged.

[0093] When the strap I is bound, the power output gear B6 drives the first transmission gear B3502, the first transmission gear B3502 further drives the second transmission gear B3602, the first and second binding gears B3503, B3603 are rotated with the first and second transmission gears B3502, B3602 respectively, the strap tail passes between the first and second binding gears B3503, B3603, the first binding gear B3503 is engaged with the self-locking internal teeth of the strap I, so that the strap tail is clamped between the first and second binding gears B3503, B3603 and is pulled with the rotation of the first binding gear B3503.

[0094] In addition, the above-mentioned gear module further comprises a bridge gear set B37, which is drivingly connected between the power output gear B6 and the first driven gear set B35. The bridge gear set B37 comprises a bridge gear rotating shaft B3701 and two bridge driving gears B3702 fixed on the bridge gear rotating shaft B3701. In the embodiment, the two bridge driving gears B3702 are integral with the bridge gear rotating shaft B3701 and arranged in an axial direction. The bridge gear rotating shaft B3701 is rotatably mounted on the body B1 through a bearing, one of the bridge driving gears B3702 is engaged with the power output gear B6, and the other bridge driving gear B3702 is drivingly connected with the first driving gear B3502, which is engaged with the second driving gear B3602.

[0095] In order to ensure that the first binding gear B3503 is more stably engaged with the inner teeth of the strap I, the above-mentioned gear module further comprises a third driven gear set B38. The third driven gear set B38 comprises a third driven gear shaft B3801, a third driving gear B3802 and a third binding gear B3803 fixed on the third driven gear shaft B3801. In the embodiment, the third driven gear shaft B3801 is rotatably mounted on the body B1 through a bearing, the third driving gear B3802 and the third binding gear B3803 are integral with the third driven gear shaft B3801 and arranged in an axial direction. The first, second and third binding gears B3503, B3603 and B3803 are distributed in a triangular manner, the first binding gear B3503 is located on the inner side of the strap I, and the second and third binding gears B3603 and B3803 are located on the outer side of the strap I. In this way, the first binding gear B3503 can be most stably engaged with the inner teeth of the strap I, and the strap I can be most tightly bound.

[0096] The first, second and third driving gears B3502, B3602 and B3802 and one of the bridge driving gears B3702 are located on the same side, and the first, second and third binding gears B3503, B3603 and B3803 and the other bridge driving gear B3702 are located on the same side. The power transmission of the above-mentioned gear module is carried out in the following manner:

[0097] The power is transmitted from the power output gear B6 to one of the bridge driving gears B3702, then transmitted to the third driving gear B3802 through the other bridge driving gear B3702, and then transmitted from the third driving gear B3802 to the first driving gear B3502, which drives the second driving gear B3602. The first, second and third binding gears B3503, B3603 and B3803 form a strap binding gear set, the teeth of the first binding gear B3503 are in contact with the inner teeth of the strap I, and the second and third binding gears B3603 and B3803 are in contact with the strap I from the back.

[0098] Please see Figure 24 , when the binding tape I is bound, the tape head of the tape I is clamped in the clamping groove B102 corresponding to the body B1, the tail of the tape I passes through the hole in the tape head under the action of the upper hook B14, and enters between the first and second binding gears B3503 and B3603 from the perforation B103 at the bottom of the clamping groove B102. The first and second binding gears B3503 and B3603 keep rotating, and the back of the tape I is pushed forward by the second binding gear B3603. The teeth of the first binding gear B3503 are instantaneously engaged with the inside teeth of the tail of the tape I, and the tape I moves forward under the pulling force of the engaged teeth of the first binding gear B3503. Then, the back of the tape I contacts the third binding gear B3803, which supports the back of the tape I, so that the other inside teeth of the tape I are engaged with the teeth of the first binding gear B3503 again. In this way, the tail of the tape I is pulled forward by the first, second and third binding gears B3503, B3603 and B3803 (hereinafter referred to as "tape binding gear set") until the tape ring becomes the smallest and the product is bound tightly. Finally, the tape binding gear set is clamped and stopped. At this time, the resistance of the tape binding gear set will instantaneously increase, which is greater than the output force set by the power output gear B6. The power output gear B6 and the main shaft B3 are disengaged, which does not affect the continuous rotation of the main shaft B3 and the motor B2. After the tape I is bound tightly, the motor B2 and the main shaft B3 are reversed. At this time, the tape binding gear set will also be reversed, and the tail of the tape I will exit the gear with the tape binding gear set. Finally, the bound product tape I can be separated from the automatic binding system.

[0099] In this embodiment, the body B1 has a blowing pipeline for blowing air to the gear module, which can clean the gear module. Specifically, the body B1 is provided with a blowing gas inlet B107, and the body B1 is provided with a blowing pipeline in communication with the blowing gas inlet B107. The outlet end of the blowing pipeline is located between each gear set of the gear module.

[0100] The above automatic binding system realizes binding through the movement and stop of the motor B2, and is controlled by a machine control system. The working process is as follows:

[0101] As shown in Figure 25 , the automatic binding system is at the original position. At this time, the motor B2 is stationary, the motor B2 is at the original position, the upper hook B14 and the lower hook B25 are not closed, and the free ends of the two have a certain opening.

[0102] As shown in Figure 26 , the product II to be bound is placed in the appropriate position in the binding operation space from the opening.

[0103] As shown in Figure 27As shown, the motor B2 starts to rotate an angle and then pauses, at this time, the cam module follows to rotate an angle, the lower hook B25 is also driven to swing an angle and keep, at this time, the opening between the upper hook B14 and the lower hook B25 is closed, so that a closed loop is formed between the body B1, the upper hook B14 and the lower hook B25 as a binding operation space.

[0104] As shown, Figure 28 As shown, the strap I is quickly blown into by the high-pressure gas from the conveying unit of the automatic feeding system A through the entrance of the strap track B101, the strap I enters along the first groove segment B1011, the tail end passes through the second groove segment B1012 and the groove on the upper hook B14 and the lower hook B25, and finally the strap head stops at the clamping groove B102, so that the strap I is fed into position. As long as the entire circumference of the annular groove of the clamping groove B102, the upper hook B14 and the lower groove B25 is designed to have a length of a proper value (theoretically less than the length of the strap I), it can be ensured that the strap I will not be stuck during the feeding movement and will be smoothly fed into position.

[0105] As shown, Figure 29 As shown, the motor B2 continues to rotate forward to drive the cam module to continue to rotate, at this time, the upper hook B14 is driven by the compound cam B4 to rotate to a set angle, and in the process of rotation, the strap tail is continuously pushed forward, the strap tail passes through the clamping hole of the strap head and the perforation B103 at the bottom of the clamping groove B102, and extends to between the first and second binding gears B2703 and B2803. Since the remote rest angle of the second cam surface B402 is greater than the sum of the lift angle and the remote rest angle of the first cam surface B401, the lower hook B25 remains in a closed state during this process.

[0106] As shown, Figure 30 As shown, since the strap binding gear set follows the motor B2 to rotate synchronously, when the strap tail is pushed over by the upper hook B14, the first binding gear B3503 will instantaneously mesh with the inner teeth of the strap I, so as to pull the strap I forward until the strap I is tightly bound to the product II and cannot move (at this time, the power output gear B6 will jump off). In this process, under the action of the upper return spring B15 and the upper return torsional spring B19, the upper hook B14 and the upper follower bearing B18 are reset, and at the same time, under the action of the lower return torsional spring B26 and the lower return spring B30, the lower hook B25 and the lower follower bearing B29 are reset, so that the upper hook B14 and the lower hook B25 return to the original position.

[0107] As shown, Figure 31As shown, the motor B2 advances to the position according to the set angle (at this time the strap I has been tightened to the position), then the motor B2 reverses to the original position, the gear module follows the reverse, the strap tail synchronously exits the gear module, and finally the bound product II can be taken away from the automatic binding system through the opening between the upper hook B14 and the lower hook B25, and the binding is completed.

[0108] In the strap binding machine, the automatic feeding system A can automatically feed the scattered several straps I to the designated position of the automatic binding system B body B1 in the rear section, and the automatic binding system B adopts a cam module. The strap I binding process is completely completed by the single motor B2 driving the cam module and the gear module through the control program. The whole machine has the characteristics of simple and stable structure, convenient control, fast binding speed and high efficiency, and is especially suitable for use on the strap binding fully automatic production line.

[0109] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model. Any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A cable tie binding machine, characterized in that, The system includes an automatic feeding system and an automatic binding system. The automatic feeding system includes a feeding unit, a dispensing unit, and a conveying unit, with the dispensing unit located between the feeding unit and the conveying unit. The automatic binding system includes a body, a cam module, a motor, an upper hook module, a lower hook module, and a gear module, with the conveying unit located between the dispensing unit and the body. The body has a slot for accommodating the cable tie head, and the bottom of the slot has a through hole for the cable tie tail to pass through. The cam module includes a main shaft, a compound cam, a power input gear, and a power output gear. The main shaft is rotatably mounted on the body, the compound cam and the power input gear are both fixed to the main shaft, and the power output gear is rotatably sleeved on the main shaft. The compound cam has a first cam surface and a second cam surface spaced apart. The cam surfaces are staggered; the motor is connected to the power input gear; the upper hook module includes an upper hook and an upper rocker arm assembly, the upper hook is rotatably mounted on the body and rotatably connected to one end of the upper rocker arm assembly, the other end of the upper rocker arm assembly is provided with an upper follower bearing, the upper follower bearing is located within the working range of the first cam surface; the lower hook module includes a lower hook and a lower rocker arm assembly, the lower hook is rotatably mounted on the body and rotatably connected to one end of the lower rocker arm assembly, the lower rocker arm assembly is rotatably mounted on the body and is provided with a lower follower bearing, the lower follower bearing is located within the working range of the second cam surface; the gear module is connected to the power output gear and includes a first driven gear set and a second driven gear set for clamping and pulling the cable tie tail.

2. The cable tie binding machine as described in claim 1, characterized in that, The feeding unit includes a vibratory feeder and a linear feeder that can automatically sort cable ties. Both the vibratory feeder and the linear feeder have cable tie tracks, and the cable tie track of the linear feeder is connected to the end outlet of the cable tie track of the vibratory feeder.

3. The cable tie binding machine as described in claim 2, characterized in that, The material distribution unit includes a track body, a pushing assembly, a blocking assembly, and a detector. The track body is located at the end of the linear feeder and has a linear cable tie groove. The cable tie groove is perpendicular to the cable tie track end outlet of the linear feeder. The pushing assembly includes a pushing cylinder, a pushing body, and a pushing block. The piston of the pushing cylinder is axially parallel to the cable tie groove. The pushing body is connected to the piston of the pushing cylinder and is slidably mounted on the track body. The pushing block is located in the cable tie groove and is fixedly connected to the pushing body. The blocking assembly includes a blocking cylinder and a blocking slider. The piston of the blocking cylinder is axially perpendicular to the cable tie groove. The blocking slider is located at the free end of the piston of the blocking cylinder. The track body has a blocking groove corresponding to the position of the blocking slider for the blocking slider to pass through. The blocking groove is connected to the cable tie groove.

4. The cable tie binding machine as described in claim 3, characterized in that, The pushing assembly also includes a cable tie cover plate. A guide groove is provided through the pushing body. The guide groove is parallel to the cable tie slide groove. The cable tie cover plate is located above the pushing block and is slidably inserted in the guide groove. The end of the cable tie cover plate away from the pushing cylinder protrudes downward and covers the groove surface of the cable tie slide groove.

5. The cable tie binding machine as described in claim 3, characterized in that, The conveying unit includes a cylinder body, an air inlet pipe, and a conveying pipe. The cylinder body is located at the end of the track body away from the pusher cylinder, and a straight cable tie channel is opened inside it. The straight cable tie channel is connected to the end outlet of the cable tie chute. A cylinder valve is provided in the cylinder body to open / close the straight cable tie channel. The air inlet pipe is connected to the straight cable tie channel, and the conveying pipe is connected to the end outlet of the straight cable tie channel.

6. The cable tie binding machine as described in any one of claims 1 to 5, characterized in that, The far repose angle of the second cam surface is greater than the sum of the lift angle and the far repose angle of the first cam surface.

7. The cable tie binding machine as described in any one of claims 1 to 5, characterized in that, The cam module also includes a torque controller for adjusting the output torque of the power output gear. The torque controller includes a first friction plate, a second friction plate, a spring plate, and a locking nut. The first friction plate is sandwiched between the power input gear and the power output gear. The second friction plate, the spring plate, and the locking nut are sequentially sleeved on the main shaft along the axis away from the composite cam.

8. The cable tie binding machine as described in any one of claims 1 to 5, characterized in that, The upper hook module also includes an upper return spring, one end of which is connected to the body and the other end of which is connected to the end of the upper rocker arm assembly near the upper follower bearing.

9. The cable tie binding machine as described in any one of claims 1 to 5, characterized in that, The upper rocker arm assembly has a bearing rocker groove near the upper follower bearing. The end of the upper follower bearing near the bearing rocker groove protrudes with a protrusion that can swing in the bearing rocker groove. In the initial state, the distance L between the bottom of the bearing rocker groove and the axis of rotation of the compound cam satisfies the following relationship: L≥R1+R2+R3, where R1 represents the maximum radius of the first cam surface, R2 represents the radius of the upper follower bearing, and R3 represents the radius of the protrusion at the end of the upper follower bearing.

10. The cable tie binding machine as described in any one of claims 1 to 5, characterized in that, The upper swing arm assembly includes a first swing arm and a second swing arm. The first swing arm is rotatably pivotally connected to the body, and one end of the first swing arm is rotatably and slidably connected to the upper hook. The second swing arm is rotatably pivotally connected to the body, and one end of the second swing arm is rotatably and slidably connected to the other end of the first swing arm. The upper follower bearing is mounted on the second swing arm.

11. The cable tie binding machine as described in any one of claims 1 to 5, characterized in that, The upper swing arm assembly is provided with an upper follower swing arm and an upper return torsion spring for resetting the upper follower bearing at one end away from the upper hook. The upper follower swing arm is rotatably mounted on the upper swing arm assembly. The upper follower bearing is mounted on the free end of the upper follower swing arm. The upper return torsion spring is sleeved on the rotating shaft of the upper follower swing arm.

12. The cable tie binding machine as described in any one of claims 1 to 5, characterized in that, The lower swing arm assembly has a stop bar on one side of the lower follower bearing for limiting the swing amplitude of the lower follower bearing.

13. The cable tie binding machine as described in any one of claims 1 to 5, characterized in that, The lower hook module also includes a lower reset torsion spring. A spring abutment is provided on the main body near the end of the lower swing rod assembly. The lower reset torsion spring is sleeved on the pivot of the lower swing rod assembly, and its two sides are respectively sandwiched between the end of the lower swing rod assembly and the spring abutment.

14. The cable tie binding machine as described in any one of claims 1 to 5, characterized in that, The lower swing arm assembly includes a connecting rod and a third swing arm. The lower hook and the third swing arm are rotatably pivotally connected to both ends of the connecting rod. The third swing arm is rotatably mounted on the body. The lower follower bearing is located at one end of the third swing arm.

15. The cable tie binding machine as described in any one of claims 1 to 5, characterized in that, The lower swing arm assembly is provided with a lower follower swing arm and a lower return spring for resetting the lower follower bearing. The lower follower swing arm is rotatably mounted on the lower swing arm assembly. The lower follower bearing is mounted on one end of the lower follower swing arm. One end of the lower return spring is connected to the other end of the lower follower swing arm, and the other end is connected to the other end of the lower swing arm assembly away from the lower hook.

16. The cable tie binding machine as described in any one of claims 1 to 5, characterized in that, The first driven gear set includes a first driven gear shaft and a first transmission gear and a first binding gear fixedly mounted on the first driven gear shaft. The second driven gear set includes a second driven gear shaft and a second transmission gear and a second binding gear fixedly mounted on the second driven gear shaft. The first and second driven gear shafts are rotatably mounted on the body. The teeth of the first binding gear have the same pitch as the self-locking internal teeth on the cable tie. The gear module also includes a third driven gear set, which includes a third driven gear shaft and a third transmission gear and a third binding gear fixedly mounted on the third driven gear shaft. The third driven gear shaft is rotatably mounted on the body. The third transmission gear is connected to the power output gear and meshes with the first transmission gear. The first, second, and third binding gears are triangularly distributed, with the first binding gear located inside the cable tie and the second and third binding gears located outside the cable tie.

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