Ribbon binding machine

Abstract

The invention provides a ribbon binding machine which comprises an automatic feeding system and an automatic binding system, the automatic feeding system comprises a feeding unit, a distributing unit and a conveying unit, the distributing unit is located between the feeding unit and the conveying unit, and the automatic binding system comprises a body, a cam module, a motor, an upper hook module, a lower hook module and a gear module. 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 invention relates to the technical field of wire packaging, and in particular to a cable tie binding machine. Background Art

[0002] For some wire products (such as cables, etc.), in the production and assembly process or after processing, in order to facilitate production and transportation (semi-finished products) or save packaging volume (finished products), cable ties are needed to tie the wires. At present, most manufacturers mainly rely on manual installation of cable ties on simple tooling one by one, and then use simple tooling to manually tie the cable ties, which is inefficient and costly. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a cable tie binding machine with high production efficiency.

[0004] In order to solve the above technical problems, the present invention provides a cable tie binding machine, including an automatic feeding system and an automatic binding system, the automatic feeding system includes a feeding unit, a material dividing unit and a conveying unit, the material dividing unit is 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, the conveying unit is located between the material dividing unit and the body of the automatic binding system; wherein, The main body is provided with a slot for accommodating the cable tie head, and the bottom of the slot is provided with a through hole for the cable tie tail to pass through; The cam module comprises a main shaft, a compound cam, a power input gear and a power output gear, the main shaft is rotatably mounted on the main body, the compound cam and the power input gear are both fixedly connected to the main shaft, the power output gear is relatively rotatably sleeved on the main shaft, the compound cam has a first cam surface and a second cam surface arranged at intervals, the first and second cam surfaces are arranged alternately, and the distal repose angle of the second cam surface is greater than the sum of the lift angle and the distal repose angle of the first cam surface; The motor is drivingly connected to the power input gear; The upper hook module comprises an upper hook, an upper swing rod assembly and an upper return spring, wherein the upper hook is rotatably mounted on the body and is relatively rotatably connected to one end of the upper swing rod assembly, and the other end of the upper swing rod assembly is provided with an upper swing rod follower assembly, wherein the upper swing rod follower assembly comprises an upper follower bearing, and the upper follower bearing is located within the working range of the first cam curved surface, and one end of the upper return spring is connected to the body, and the other end thereof is connected to one end of the upper swing rod assembly close to the upper swing rod follower assembly; The lower hook module comprises a lower hook, a lower swing lever assembly and a lower return torsion spring, wherein the lower hook is rotatably mounted on the body and is relatively rotatably connected to one end of the lower swing lever assembly, the lower swing lever assembly is rotatably mounted on the body, and a lower swing lever follower assembly is arranged thereon, the lower swing lever follower assembly comprises a lower follower bearing, the lower follower bearing is located within the working range of the second cam curved surface, a blocking rod for limiting the swing amplitude of the lower follower bearing is arranged on one side of the lower follower bearing on the lower swing lever assembly, and the lower return torsion spring is sleeved on the rotating shaft of the lower swing lever assembly; The gear module is drivingly connected to the power output gear, and comprises a first driven gear set and a second driven gear set for clamping and pulling the cable tie tail.

[0005] Furthermore, the feeding unit includes a vibration plate and a linear feeder that can automatically sort the cable ties, and both the vibration plate and the linear feeder have a cable tie track, and the cable tie track of the linear feeder is connected to the terminal outlet of the cable tie track of the vibration plate.

[0006] Furthermore, the material dividing unit includes a track body, a pushing assembly, a stopping assembly and a detector; the track body is located at the end of the linear feeder and is provided with a linear tie slide groove, and the tie slide groove is vertically located at the end outlet of the tie track 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 tie slide 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 tie slide groove and is fixedly connected to the pushing body; the stopping assembly includes a stopping cylinder and a stopping slide block, the piston of the stopping cylinder is axially perpendicular to the tie slide groove, the stopping slide block is at the free end of the piston of the stopping cylinder, a stopping groove for the stopping slide block to pass through is opened at the position of the track body corresponding to the stopping slide block, and the stopping groove is communicated with the tie slide groove.

[0007] Furthermore, the pushing assembly also includes a cable tie cover plate, a guide groove is opened 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 can be slidably inserted into the guide groove, the cable tie cover plate protrudes downward at one end away from the pushing cylinder, and the cover is placed above the groove surface of the cable tie slide groove.

[0008] Furthermore, the conveying unit includes a cylinder body, an air intake pipe and a conveying pipe. The cylinder body is located at one end of the track body away from the pushing cylinder, and a cable tie linear channel is opened therein, and the cable tie linear channel is connected to the end outlet of the cable tie slide groove. A cylinder valve that can open / close the cable tie linear channel is provided in the cylinder body, the air intake 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] Furthermore, the cam module also includes a torque controller for adjusting the output torque of the power output gear, and the torque controller includes a first friction plate, a second friction plate, a butterfly spring and a locking nut. The first friction plate is clamped between the power input gear and the power output gear, and the second friction plate, butterfly spring and locking nut are sequentially sleeved on the main shaft along the main shaft axis away from the compound cam.

[0010] Furthermore, the torque controller also includes a first isolation gasket and a second isolation gasket, the first and second isolation gaskets are placed on the main shaft, the first isolation gasket is clamped between the second friction plate and the butterfly spring plate, and the second isolation gasket is clamped between the butterfly spring plate and the locking nut.

[0011] Furthermore, a bearing swing groove is provided on the upper swing arm assembly at a position close to the upper follower bearing, and a convex column that can swing in the bearing swing groove protrudes from the end of the upper follower bearing close to the bearing swing groove. In an initial state, the distance L between the bottom of the bearing swing groove and the center of rotation of the composite cam 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 convex column at the end of the upper follower bearing.

[0012] Further, the upper rocker arm assembly includes a first rocker arm and a second rocker arm, the first rocker arm is rotatably pivoted on the main body, one end of which is relatively rotatably and slidably connected to the upper hook, the second rocker arm is rotatably pivoted on the main body, one end of which is relatively rotatably and slidably connected to the other end of the first rocker arm, the upper return spring is connected to the other end of the second rocker arm, and the upper rocker arm follower assembly is installed on the second rocker arm.

[0013] Furthermore, the upper rocker follower assembly also includes an upper follower rocker and an upper return torsion spring for resetting the upper follower bearing. The upper follower rocker is rotatably mounted on the upper rocker assembly, the upper follower bearing is mounted on the free end of the upper follower rocker, and the upper return torsion spring is sleeved on the rotating shaft of the upper follower rocker.

[0014] Furthermore, the lower swing arm assembly includes a connecting rod and a third swing arm, the lower hook and the third swing arm are respectively rotatably pivoted at both ends of the connecting rod, the third swing arm is rotatably mounted on the main body, and the lower swing arm follower assembly and the blocking rod are both located at one end of the third swing arm.

[0015] Furthermore, the lower swing arm follower assembly also includes 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 thereof is connected to the other end of the lower swing arm assembly away from the lower hook.

[0016] Furthermore, the first driven gear set includes a first driven gear shaft and a first transmission gear and a first binding gear fixed on the first driven gear shaft, and the second driven gear set includes a second driven gear shaft and a second transmission gear and a second binding gear fixed on the second driven gear shaft, and the first and second driven gear shafts can be rotatably mounted on the main body, and the gear teeth of the first binding gear have the same pitch as the self-locking internal teeth on the cable tie.

[0017] Furthermore, the gear module also includes a bridge gear set, which is transmission-connected between the power output gear and the second driven gear set, and includes a bridge gear rotating shaft and two bridge transmission gears fixed on the bridge gear rotating shaft, and the bridge gear rotating shaft is rotatably mounted on the main body, one of the bridge transmission gears is meshed with the power output gear, and the other bridge transmission gear is transmission-connected with the first transmission gear, and the first transmission gear is meshed with the second transmission gear.

[0018] Furthermore, 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 fixed on the third driven gear shaft. The third driven gear shaft is rotatably mounted on the main body, and the third transmission gear is meshed with one of the bridge transmission gears and is simultaneously meshed with the first transmission gear. The first, second and third binding gears are distributed in a triangle, and the first binding gear is located on the inner side of the cable tie, and the second and third binding gears are located on the outer side of the cable tie.

[0019] Compared with the prior art, in the cable tie binding machine of the present invention, the automatic feeding system can automatically transport a number of scattered cable ties one by one to the designated position of the rear-stage automatic binding system body, and the automatic binding system adopts a cam module. The cable tie binding process is completely completed by a single motor driving the cam module and the gear module in coordination with 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 in a fully automated cable tie binding production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of a preferred embodiment of the present invention.

[0021] Figure 2 yes Figure 1 Schematic diagram of the automatic feeding system.

[0022] Figure 3 yes Figure 2 Schematic diagram of the feeding unit.

[0023] Figure 4 yes Figure 2 Schematic diagram of the center material distribution unit.

[0024] Figure 5 yes Figure 4 Schematic diagram of the partial structure of the middle material distribution unit.

[0025] Figure 6 yes Figure 4 The schematic diagram of the material distribution unit shown is in the initial state of movement.

[0026] Figure 7 yes Figure 4 Schematic diagram of the dispensing unit shown in the end state of movement.

[0027] Figure 8 yes Figure 2 Schematic diagram of the location of the conveying unit.

[0028] Fig. 9 yes Figure 8 The structural schematic diagram of the conveying unit is shown in FIG.

[0029] Fig.10 yes Figure 1 Schematic diagram of the automatic lashing system.

[0030] Fig.11 yes Fig.10 A three-dimensional schematic diagram of the main body.

[0031] Fig.12 yes Fig.11 Schematic diagram of the local structure of the body shown.

[0032] Fig.13 Schematic diagram of the cable tie at the end of the cable tie track in the body.

[0033] Fig.14 yes Fig.10 Schematic diagram of power transmission between the motor and the cam module.

[0034] Fig.15 yes Fig.10 Schematic diagram of the exploded cam module.

[0035] Fig.16 yes Fig.10 Schematic diagram of the transmission between the middle upper hook module and the compound cam.

[0036] Fig.17 yes Fig.16 Schematic diagram of the structure of the second swing rod and the upper swing rod assembly.

[0037] Fig.18 yes Fig.17 A plan view schematically showing the transmission direction of the second rocker arm, the upper rocker arm follower assembly and the compound cam.

[0038] Fig.19 yes Fig.10 Schematic diagram of the installation and transmission of the middle and lower hook module and the compound cam.

[0039] Fig. 20 yes Fig.19 Schematic diagram of the structure of the third swing rod and the lower swing rod follower assembly.

[0040] Fig.21 yes Fig.19 A plan view schematically showing the transmission direction of the third rocker arm and the compound cam.

[0041] Fig. 22 yes Fig.10 Schematic diagram of the structure of the gear module.

[0042] Fig.23 yes Fig. 22 A schematic structural diagram of the gear module shown in another angle.

[0043] Fig.24 yes Fig. 22 Schematic diagram of the gear module performing the cable tie tying process.

[0044] Fig.25 yes Fig.10 The illustrated embodiment is a schematic plan view in an initial state.

[0045] Fig.26 yes Fig.25 The illustrated embodiment is a schematic plan view of a product to be tied when placed therein.

[0046] Fig. 27 yes Fig.26 The illustrated embodiment is a plan view showing a state in which the lower hook member is closed.

[0047] Fig.28 yes Fig. 27 The illustrated embodiment is a schematic plan view of a cable tie when it is in place.

[0048] Fig.29 yes Fig.28 The illustrated embodiment is a plan view of a state in which the upper hook member rotates to push the cable tie tail to move.

[0049] Fig.30 yes Fig.29 The illustrated embodiment is a plan view of a situation in which the gear module pulls the cable tie to move.

[0050] Fig.31 yes Fig.30 The illustrated embodiment is a plan view of a situation in which the cable tie is withdrawn in the reverse direction by the motor reversing. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0052] See also Figure 1 , is a preferred embodiment of the present invention, the cable tie tying machine is mainly suitable for automatic feeding and tying of nylon cable ties, including an automatic feeding system A located at the front section and an automatic tying system B located at the rear section.

[0053] Please also read Figure 2 The automatic feeding system includes a feeding unit, a dividing unit and a conveying unit, and the dividing unit is located between the feeding unit and the conveying unit.

[0054] Please also read Figure 3 , the feeding unit includes a vibration disk A1 and a linear feeder A2. The vibration disk A1 can automatically sort the cable ties I, and it has a cable tie track A101. During production, a certain number of cable ties I are randomly placed in the vibration disk A1. Relying on the vibration of the vibration disk A1, the cable ties I can be sorted during the transportation process of the cable tie track A101 of the vibration disk A1, and are sent out in order at the end of the cable tie track A101 of the vibration disk A1. The linear feeder A2 has a cable tie track A201, and the cable tie track A201 of the linear feeder A2 is connected to the end outlet of the cable tie track A101 of the vibration disk A1. In this way, the cable ties I output from the cable tie track A101 of the vibration disk A1 will form a neat and uniform row on the cable tie track A201 of the linear feeder A2, and the cable ties I keep the tails of the cable ties facing outward and the heads of the cable ties facing inward, thereby realizing automatic feeding to the rear-stage material distribution unit.

[0055] Please also read Figure 4 and Figure 5 The material separation unit is located between the feeding unit and the rear conveying unit, and is used to separate the entire row of cable ties I at the end of the feeding unit one by one, and then send a single cable tie I to the rear conveying unit. The material separation unit includes a track body A3, a pushing assembly, a blocking assembly and a detector.

[0056] The track body A3 is located at the end of the linear feeder A2, and a linear tie chute A301 is provided on the top thereof. The tie chute A301 is vertically located at the end exit of the tie track A201 of the linear feeder A2, and the tie I can move linearly along the tie chute A301.

[0057] The pusher assembly includes a pusher cylinder A4, a pusher body A5 and a pusher block A6. The piston of the pusher cylinder A4 is axially parallel to the cable tie chute A301, and the pusher body A5 is connected to the piston of the pusher cylinder A4 and is slidably mounted on the track body A3. In this embodiment, the pusher body A5 is slidably mounted on one of the side walls of the cable tie chute A301. The pusher block A6 is located in the cable tie chute A301 and is fixedly connected to the pusher body A5. The pusher cylinder A4 can push the pusher body A5 and the pusher block A6 to move together along the cable tie chute A301. In order to prevent the cable tie I from flapping upward, the pusher assembly in this embodiment also includes a cable tie cover A7. A guide groove is provided through the pusher body A5. The guide groove is parallel to the cable tie chute A301. The cable tie cover A7 is located above the pusher block A6 and can be slidably penetrated in the guide groove. The cable tie cover A7 can make linear motion relative to the pusher body A5. The end of the cable tie cover A7 away from the pusher cylinder A4 protrudes downward, and the cover is placed above the groove surface of the cable tie chute A301. In this way, in the process of pushing the cable tie I, the cable tie cover A7 always covers the cable tie I, thereby preventing the cable tie I from flapping upward. In addition, the pusher assembly also includes a cover reset spring A8, and the two ends of the cover reset spring A8 are respectively connected to the cable tie cover A7 and the pusher body A5. In this embodiment, spring connecting columns are provided at the top of the pusher body A5 and the top of the cable tie cover A7, and the two ends of the cover reset spring A8 are respectively placed on the spring connecting columns.

[0058] The material blocking assembly includes a material blocking cylinder A9 and a material blocking slider A10. The material blocking cylinder A9 is fixedly mounted on one side of the track body A3, and its piston is axially perpendicular to the cable tie chute A301. The material blocking slider A10 is located at the free end of the piston of the material blocking cylinder A9. A material blocking groove connected to the cable tie chute A301 is provided at the position corresponding to the material blocking slider A10 on the track body A3, so that the material blocking slider A10 can pass through. When the material blocking cylinder A9 extends, it can drive the material blocking slider A10 to move along the material blocking groove. When the material blocking slider A10 moves to the groove surface beyond the track body A3 corresponding to the cable tie chute A301, the material blocking slider A10 can stop the cable tie head, and at this time, the cable tie I cannot make a linear motion along the cable tie chute A301. In this embodiment, the material blocking assembly is installed on one side of the track body A3, and the material blocking slider A10 has a material blocking column A1001 protruding through the material blocking groove at the position corresponding to the material blocking groove. The cross-sections of the material blocking groove and the material blocking column A1001 are both square, and the material blocking column A1001 extends horizontally. When the material blocking slider A10 moves, the material blocking column A1001 blocks the tie tie head. In addition, the material blocking assembly also includes a slider return spring A11, and the two ends of the slider return spring A11 respectively abut the material blocking slider A10 and the track body A3. When the material blocking cylinder A9 retracts, the material blocking slider A10 can follow the material blocking cylinder A9 to reset under the action of the slider return spring A11. When the material blocking slider A10 moves to the groove surface that does not exceed the tie tie chute A301, the tie tie I can move linearly along the tie tie chute A301.

[0059] The detector has a detection optical fiber A12, and the detection optical fiber A12 corresponds to the cable tie I in the initial position in the cable tie slot A301. In this embodiment, the detection system also includes an optical fiber mounting frame A13, which is fixedly mounted on one side of the track body A3, and the detection optical fiber A12 is fixedly mounted on the optical fiber mounting frame A13.

[0060] Please also read Figure 6 and Figure 7 The action process of the above-mentioned material distribution unit is roughly as follows: like Figure 6 As shown, in the initial state of the material distribution movement, the cable tie I enters the cable tie chute A301 of the track body A3. At this time, the cable tie I direction corresponding to the end outlet of the cable tie track A201 of the front linear feeder A2, the cable tie tail is in front and the cable tie head is in the back. At this time, the cable tie head is positioned between the pusher block A6, the blocking slider A10 and the cable tie cover A7.

[0061] like Figure 7As shown, when the detection optical fiber A12 detects that the cable tie I is in place, the blocking slider A10 retracts, and the pushing cylinder A4 pushes the pushing assembly to make the pushing body A5, the pushing block A6 and the cable tie cover A7 extend forward. One end of the pushing block A6 pushes the cable tie I to move forward together until the tail of the cable tie is sent to the rear conveying unit. When the pushing assembly pushes the cable tie I forward, the cable tie cover A7 always covers the cable tie I to prevent the cable tie I from tilting upward. When the tail of the cable tie has entered the rear conveying unit, the cable tie cover A7 first hits the entrance part of the conveying unit. Since the cable tie cover A7 can be relatively slidably inserted into the guide groove of the pushing body A5, although the cable tie cover A7 is blocked at this time, the pushing block A6 can still continue to push the cable tie I forward under the drive of the pushing cylinder A4 until the pushing cylinder A4 runs to the end. In this way, the cable tie I can be completely sent to the designated position of the rear conveying unit. When the pushing cylinder A4 moves back, it can drive the pushing body A5, pushing block A6 and tie cover A7 of the pushing assembly to move back together. When the pushing assembly exits the conveying unit, the tie cover A7 and the pushing block A6 can be restored to their original initial relative positions under the action of the cover return spring A8. Finally, when the pushing cylinder A4 moves back to the initial position, the entire material distribution unit returns to its initial state.

[0062] Please also read Figure 8 and Fig. 9 The conveying unit is located between the material distribution unit and the rear automatic binding system, and is used to convey a cable tie I distributed from the front section to a designated position of the rear automatic binding system. The conveying unit can automatically form a conveying pipeline with a single outlet, and can also provide high-speed motion power for the cable tie I to move forward. The conveying unit includes a cylinder body A14, an air intake pipe A15 and a conveying pipe A16.

[0063] The cylinder body A14 is located at one end of the track body A3 away from the push cylinder A4, and a cable tie linear channel A1401 is provided therein. The cable tie linear channel A1401 is connected to the terminal outlet of the cable tie slideway A301, and a cylinder valve A17 that can open / close the cable tie linear channel A1401 is provided in the cylinder body A14. In this embodiment, a valve channel is also provided in the cylinder body A14, and the valve channel is perpendicular to the cable tie linear channel A1401 and is connected to the cable tie linear channel A1401. The cylinder valve A17 is slidably located in the valve channel and is connected to a valve cylinder A18. The air inlet pipe A15 is connected to the cable tie linear channel A1401, and it can be connected to an external high-pressure gas source (not shown in the figure), and the high-pressure gas source can be used as a power source for the cable tie I to move in the delivery pipe A16. One end of the delivery pipe A16 is connected to the terminal outlet of the cable tie linear channel A1401, and the other end can be connected to the entrance of the rear-stage automatic binding system. In this embodiment, the cross section of the cable tie linear channel A1401 is square, and the four sides at the entrance are chamfered to facilitate the entry of the cable tie I. The end of the cable tie linear channel A1401 is a thin-walled tube with a smaller outer diameter, and the delivery tube A16 is placed on the thin-walled tube. The design of the thin-walled tube can facilitate the quick plug-in and unplug connection of the delivery tube A16. The delivery tube A16 can be a plastic hose, which can be bent and the length can be determined according to actual needs to ensure that the cylinder body A14 and the rear-stage automatic binding system can be flexibly connected. In this embodiment, the cross sections of the thin-walled tube and the delivery tube A16 are also square, and the inner shape of the delivery tube A16 is similar to the shape of the cable tie head, but the size is slightly larger to ensure that the cable tie I moves smoothly during the transportation process, but the direction of the cable tie I will not change at the inlet and outlet positions. The shape of the cable tie linear channel A1401 is similar to the appearance of the cable tie head, but the size is slightly larger, so as to ensure that the cable tie I can easily move in and out when moving in the cable tie linear channel A1401, but will not turn over and twist in the cable tie linear channel A1401, so as to ensure that the cable tie I enters and exits in a consistent direction. In this embodiment, the valve channel is located below the cable tie linear channel A1401, and its cross-section is also square, and the air inlet is located on the cylinder body A14 near the cylinder valve A17. The appearance of the cylinder valve A17 is consistent with the appearance and size of the valve channel, and the valve cylinder A18 is installed below the cylinder valve A17, which can drive the cylinder valve A17 to reciprocate in the valve channel.

[0064] The working process of the above-mentioned conveying unit is roughly as follows: At the beginning, the cylinder valve A17 is opened (the cylinder valve A17 is located at the lower position), and the distributing unit pushes a cable tie I in. The pushing position of the cable tie I must pass the cylinder valve A17 and exceed the position of the air inlet of the cylinder body A14. After that, the pushing block A6 of the distributing unit withdraws, and the cylinder valve A17 extends to seal the entrance of the cable tie straight channel A1401. The air inlet pipe A15 is connected to the high-pressure gas. At this time, the entire 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 cable tie head. In this way, the high-pressure gas entering the cylinder body A14 will push the cable tie I at one end of the cable tie head from the cylinder body A14 to the outlet delivery pipe A16 for high-speed movement, and finally fly out from the pipe mouth of the delivery pipe A16.

[0065] The working process of the above automatic feeding system is roughly as follows: A certain number of cable ties I are placed in the vibration disk A1. The vibration disk A1 vibrates, and the cable ties I are sent out in order from the end of the cable tie track A101 of the vibration disk A1 to the cable tie track A201 of the linear feeder A2, forming a neat and uniform row, with the tail of the cable ties I facing outward and the head facing inward. Then, the cable ties I enter the cable tie chute A301 of the track body A3 one by one. During this process, the detection optical fiber A12 detects that a cable tie I is in place, the material blocking slider A10 retracts, and the push cylinder A4 pushes the push assembly, so that the push body A5, the push block A6 and the cable tie cover A7 extend forward, and the push block A6 pushes the cable tie I to move forward until the cable tie I is completely sent to the specified position of the cable tie linear channel A1401 in the cylinder body A14, and the push cylinder A4 moves back to the initial position, and the material distribution unit is reset. Afterwards, the cylinder valve A17 extends to seal the entrance of the cable tie linear channel A1401, and the air inlet pipe A15 is connected to the high-pressure gas, which pushes the cable tie I to move toward the conveying pipe A16 at high speed. Finally, the cable tie I flies out from the pipe mouth of the conveying pipe A16 and enters the designated position of the rear-stage automatic binding system B, thereby completing automatic loading.

[0066] See also Fig.10 The automatic tying system B includes a body B1, a cam module, a motor B2, an upper hook module, a lower hook module and a gear module. The conveying unit of the automatic feeding system A is located between the material distribution unit and the body B1 of the automatic tying system B, and is used to convey a single cable tie I into the body B1 of the automatic tying system B.

[0067] Please also read Figures 11 to 13The main body B1 provides mounting supports for various functional structures of the automatic binding system, and also provides a track for the movement of the cable tie I. In this embodiment, the main body B1 has a cable tie track B101, which is a square channel, the entrance and exit of which are open, and the other four sides are closed. The bottom of the slot of the cable tie track B101 has a positioning groove B102 for accommodating the cable tie head, and the bottom of the positioning groove B102 is provided with a through hole B103 for the cable tie tail to pass through. The cable tie track B101 includes a first slot section B1011 and a second slot section B1012. The cross-sectional size of the first slot section B1011 is larger than the size of the cable tie head, and the cable tie I can pass through the first slot section B1011 as a whole. The cross-sectional size of the second slot section B1012 is larger than the size of the cable tie tail, and smaller than the size of the cable tie head. The clamping groove B102 is located between the first and second groove sections B1011 and 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. When tying, the cable tie I enters the body B1 from the entrance at one end of the cable tie track B101. After the cable tie I passes through the first groove section B1011 as a whole, the cable tie head stops and is clamped in the clamping groove B102. After the cable tie tail passes through the second groove section B1012, it comes out from the exit of the cable tie track B101. Fig.13 The figure shows the state of the cable tie 1 in the final binding position.

[0068] Please also read Fig.14 and Fig.15 The cam module includes a rotatable main shaft B3, a compound 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 connected to the power input gear B5 in a transmission manner. In this embodiment, a gear B201 is fixedly provided at one end of the power output shaft of the motor B2. The gear B201 is meshed with an idler gear B202, and the idler gear B202 is also meshed with the power input gear B5. The power input gear B5 rotates synchronously with the main shaft B3, and is used to receive the power transmitted from the front motor B2 and transmit the power to the gear module. The compound cam B4 rotates synchronously with the main shaft B3, and is used to drive the upper hook module and the lower hook module.

[0069] The main shaft 3 is perpendicular to the cable tie track B101 and is rotatably installed on the main body B1. In this embodiment, the main shaft B3 is installed on the main body B1 through a bearing B7, and the bearing B7 is located between the power input gear B5 and the compound cam B4. The main shaft B3 is fixedly connected to the inner ring of the bearing B7 and can rotate with the inner ring of the bearing B7. The outer ring of the bearing B7 is fixedly connected to the main body B1, and the inner ring can rotate freely, which supports the rotation of the cam module. The compound cam B4 is located on one side of the main body B1, and the fixed sleeve is placed on the main shaft B3. In this embodiment, the compound cam B4 and the main shaft B3 are connected by a key, and the compound cam B4 can rotate synchronously with the main shaft B3. The compound cam B4 has a first cam surface B401 and a second cam surface B402 that are arranged at intervals. The first and second cam surfaces B401 and B402 are arranged alternately and at intervals along the axial direction of the compound cam B4, and the distal repose angle of the second cam surface B402 is greater than the sum of the lift angle and the distal repose angle of the first cam surface B401, so as to ensure that the upper hook module and the lower hook module can be in working state at the same time (see below for details).

[0070] The power input gear B5, the power output gear B6 and the torque controller are located on the other side of the body B1. Among them, the power input gear B5 is fixedly connected to the main shaft B3, and the power output gear B6 is located on one side of the power input gear B5 and can be relatively 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, and realize the separation from the main shaft B3.

[0071] In this embodiment, the torque controller includes a first friction plate B8, a second friction plate B9, a butterfly spring B10 and a locking nut B11. The first friction plate B8 is sandwiched between the power input gear B5 and the power output gear B6, and the second friction plate B9, the butterfly spring B10 and the locking nut B11 are sequentially sleeved on the main shaft B3 along the axial direction of the main shaft B3 away from the compound cam B4. In addition, the torque controller also includes a first isolation gasket B12 and a second isolation gasket B13, and the first and second isolation gaskets B12 and B13 are sleeved on the main shaft B3. Among them, the first isolation gasket B12 is sandwiched between the second friction plate B9 and the butterfly spring B10, and the second isolation gasket B13 is sandwiched between the butterfly spring B10 and the locking nut B11. Specifically, one side of the power input gear B5 is flush with the first friction plate B8, and it can move synchronously with the main shaft B3. The two sides of the first friction plate B8 are respectively flush with the power input gear B5 and the power output gear B6; the two sides of the power output gear B6 are respectively flush with the first and second friction plates B8 and B9; the two sides of the second friction plate B9 are respectively flush with the first isolation gasket B12 and the power output gear B6; the two sides of the first isolation gasket B12 are respectively flush with the butterfly spring plate B10 and the second friction plate B9, which can move along the axial direction of the main shaft B3 and rotate synchronously with the main shaft B3; the two sides of the butterfly spring plate B10 are respectively flush with the first and second isolation gaskets B12 and B13; the two sides of the second isolation gasket B13 are respectively flush with the locking nut B11 and the butterfly spring plate B10, which can move along the axial direction of 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 is fixedly connected to the main shaft B3 through a thread, and can rotate synchronously with the main shaft B3.

[0072] The principle of the torque controller adjusting the output torque of the power output gear B6 is as follows: The first and second friction plates B8 and B9 are respectively provided on both sides of the power output gear B6, and the outer sides of the first and second friction plates B8 and B9 are respectively in contact with the sides of the power input gear B5 and the first isolation gasket B12. Since the power input gear B5 and the first isolation gasket B12 rotate synchronously with the main shaft B3, as long as there is a certain pressure between the first isolation gasket 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 friction between them, and the first and second friction plates B8 and B9 will rotate with the power input gear B5 and the first isolation gasket B12, and the power output gear B6 will also rotate with the first and second friction plates B8 and B9. Among them, the rotational force of the power output gear B6 is the friction between it and the first and second friction plates B8 and B9, and the magnitude of the friction is related to the pressure between these parts. By adjusting the pressure, the rotational torque of the power output gear B6 can be controlled. In the set of parts mounted on the main shaft B3, except for the butterfly spring B10, whose thickness can change with the pressure, the thickness of other parts remains unchanged. When they are mounted on the main shaft B3 in sequence, the first friction plate B8 is close to the power input gear B5 (the power input gear B5 is fixed to the main shaft B3 and is immovable). When the locking nut B11 is screwed inward along the main shaft B3 thread, the whole set of parts will be close together. The further in, the tighter the butterfly spring B10 is pressed, and the pressure between the parts will increase. On the contrary, when the locking nut B11 is screwed outward, the butterfly spring B10 will be loosened, and the pressure between the parts will decrease. In this way, by adjusting the position of the locking nut B11 at the side end, the pressure between the parts can be changed, and the rotation torque of the power output gear B6 will also change accordingly. 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 plates B8 and B9, the power output gear B6 will rotate synchronously with the main shaft B3. On the contrary, when the resistance experienced by the power output gear B6 is greater than the torque generated by the first and second friction plates B8 and B9, the power output gear B6 will not rotate along with the main shaft B3, and will be separated from the main shaft B3.

[0073] Please also read Fig.16 and Fig.17The upper hook module includes an upper hook B14, an upper swing rod assembly and an upper return spring B15. The upper hook B14 is in a hook shape, which is rotatably mounted on the body B1 through the upper hook shaft B16, and is relatively rotatably connected to one end of the upper swing rod assembly. The other end of the upper swing rod assembly is provided with an upper swing rod follower assembly, which includes an upper follower swing rod B17, an upper follower bearing B18 and an upper return torsion spring B19 for returning the upper follower bearing B18. The upper follower swing rod B17 is rotatably mounted on the upper swing rod assembly, the upper follower bearing B18 is mounted on the free end of the upper follower swing rod B17, close to the composite cam B4, and located within the working range of the first cam curved surface B401, and the upper return torsion spring B19 is sleeved on the rotating shaft of the upper follower swing rod B17. One end of the upper return spring B15 is connected to the body B1, and the other end thereof is connected to one end of the upper swing arm assembly close to the upper swing arm follower assembly.

[0074] Specifically, the upper swing arm assembly includes a first swing arm B20 and a second swing arm B21. The first swing arm B20 is rotatably pivoted to the body B1 through a first swing arm rotating shaft B22, and one end of the first swing arm B20 is relatively rotatably and slidably connected to the upper hook member B14. The second swing arm B21 is rotatably pivoted to the body B1 through a second swing arm rotating shaft B23, and one end of the first swing arm B21 is relatively rotatably and slidably connected to the other end of the first swing arm B20, and an upper return spring B15 is connected to the other end of the second swing arm B21. In this embodiment, one end of the first swing arm B20 has a first swing arm waist-shaped groove B2001, and an upper hook member connecting column B1401 protrudes from the upper hook member B14, and the upper hook member connecting column B1401 is located in the first swing arm waist-shaped groove B2001. A second swing rod waist groove B2101 is provided at one end of the second swing rod B21, and the other end of the first swing rod B20 protrudes out of the first swing rod connecting column B2002, and the first swing rod connecting column B2002 is located in the second swing rod waist groove B2101. The upper swing rod follower assembly is installed on the second swing rod B21. In this embodiment, the upper swing rod follower assembly also includes a mounting seat B24, which is fixed on the upper swing rod assembly, and the upper follower swing rod B17 is rotatably mounted on the mounting seat B24, and the two sides of the upper return torsion spring B19 are respectively sandwiched between the mounting seat B24 and the rotating shaft of the upper follower bearing B18.

[0075] like Fig.18 As shown, the body B1 is provided with a blocking pin B104, and in the initial state, the second swing rod B21 and the components thereon are acted upon by the upper return spring B15, close to the blocking pin B104. At this time, the upper follower swing rod B17 is at the right limit position under the action of the upper return torsion spring B19, and the outer surface of the upper follower bearing B18 can just contact the lowest position of the first cam curved surface B401.

[0076] When the compound cam B4 is Fig.18When the position shown in (a) and 18 (b) rotates clockwise, the cam raises the curved surface, and the first cam curved surface B401 on the compound cam B4 drives the upper follower bearing B18 to swing to the right. Since the upper follower swing rod B17 is already at the rightmost limit position, the second swing rod B21 will only rotate counterclockwise (i.e. away from the compound cam B4) around the second swing rod rotating axis B23 together with the upper swing rod follower assembly. When the compound cam B4 rotates clockwise, the second swing rod B21 and its components will swing along with the change of the working curved surface of the first cam curved surface B401. During the swinging process of the second swing bar B21, the second swing bar waist-shaped groove B2101 on the second swing bar B21 can drive the first swing bar connecting column B2002, so that the first swing bar B20 can rotate clockwise around the first swing bar rotating shaft B22, and then the first swing bar waist-shaped groove B2001 drives the upper hook connecting column B1401, so that the upper hook B14 follows around the upper hook rotating shaft B16 and rotates counterclockwise. Therefore, the composite cam B4 rotates clockwise for one circle, and the upper hook B14 follows the first cam curved surface B401 to achieve a certain angle swing rotation.

[0077] When the compound cam B4 rotates counterclockwise, the upper hook B14 will not swing along with the rotation of the compound cam B4 through the design mechanism of reverse disengagement. Specifically, a bearing swing groove B2103 is provided on the upper swing rod assembly near the upper follower bearing B18 (in this embodiment, the bearing swing groove B2103 is located on the second swing rod B21), and a protruding column B1801 that can swing in the bearing swing groove B2103 protrudes from the end of the upper follower bearing B18 near the bearing swing groove B2103.

[0078] like Fig.18 As shown in (d), the distance L between the bottom of the bearing swing groove B2103 and the rotation axis of the composite cam B4 satisfies the following relationship: L≥R1+R2+R3. Among them, 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 convex column B1801 of the upper follower bearing B18. In this way, the upper follower bearing B18 can swing around the swing support shaft in the range of the bearing swing groove B2103, and when the upper follower bearing B18 is at the highest position of the first cam surface B401 (such as Fig.18 (d)), it will not touch the limit position of the bearing swing groove B2103 (i.e. the bottom of the bearing swing groove B2103).

[0079] like Fig.18As shown in (c) and (d), in the initial state, the second swing rod B21 and its components are acted upon by the upper return spring B15, close to the blocking pin B104. At this time, the upper follower swing rod B17 is at the right limit position under the action of the upper return torsion spring B19, and the outer surface of the upper follower bearing B18 can just touch the lowest position of the first cam curved surface B401. When the compound cam B4 rotates counterclockwise, the cam raises the curved surface, and the first cam curved surface B401 on the compound cam B4 drives the upper follower bearing B18 to swing to the left. In this process, since the corresponding bearing swing groove B2103 in this direction is longer (L≥R1+R2+R3), even if the upper follower bearing B18 is at the highest position of the first cam curved surface B401, the convex column B1801 on the upper follower bearing B18 does not touch the left limit position of the bearing swing groove B2103. Therefore, at this time, only the upper follower bearing B18 follows the swing, but the second swing rod B21 does not follow the rotation of the compound cam B4 and follows. Thus, the composite cam B4 rotates clockwise, and the second swing rod B21 and the upper hook B14 can rotate accordingly; the composite cam B4 rotates counterclockwise, and the second swing rod B21 and the upper hook B14 remain stationary, achieving follow-up separation. As for the entire upper hook module, it is only necessary to ensure that the tension torque of the upper reset spring B15 is much greater than the torque of the upper reset torsion spring B19. Then, during the counterclockwise rotation of the composite cam B4, the second swing rod B21 as a whole will remain stationary close to the blocking pin B104, and only the upper follower swing rod B17 will swing independently, thereby achieving separation of the swing rod and the cam.

[0080] During the clockwise and counterclockwise rotation of the above-mentioned compound cam B4, when the working surface of the compound cam B4 passes the highest point of the first cam surface B401, the second rocker arm B21 can be reset under the action of the upper reset spring B15, so that the second rocker arm B21 is close to the blocking pin B104. At the same time, the upper follower bearing B18 can be reset under the action of the upper reset torsion spring B19 and is in the right extreme position.

[0081] Please also read Fig.19 and Fig. 20, the lower hook module includes a lower hook B25, a lower swing rod assembly and a lower return torsion spring B26. The lower hook B25 is in the shape of a hook, and it and the upper hook B14 enclose a binding operation space for the product to be bound to extend into. A groove is provided on one side of the upper hook B14 and the lower hook B25 close to the binding operation space, and the center of the groove is on the same plane as the center of the tie track B101. The lower hook B25 is rotatably mounted on the body B1 through the lower hook shaft B27, and is relatively rotatably connected to one end of the lower swing rod assembly. The lower swing rod assembly is rotatably mounted on the body B1, and is provided with a lower swing rod follower assembly. The lower swing rod follower assembly includes a lower follower swing rod B28, a lower follower bearing B29 and a lower return spring B30 for resetting the lower follower bearing B29. The lower follower swing rod B28 is rotatably mounted on the lower swing rod assembly, and the lower follower bearing B29 is mounted on one end of the lower follower swing rod B28, close to the composite cam B4, and located within the working range of the second cam curved surface B402. One end of the lower return spring B30 is connected to the other end of the lower follower swing rod 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. A blocking rod B31 for limiting the swing amplitude of the lower follower bearing B29 is provided on one side of the lower follower bearing B29 on the lower swing rod assembly, and the lower return torsion spring B26 is sleeved on the rotating shaft of the lower swing rod assembly. Specifically, the lower swing rod assembly includes 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 mounted on the body B1 through the swing rod rotating shaft B34, the lower swing rod follower assembly and the blocking rod B31 are both located at one end of the third swing rod B33, and the lower return spring B30 is connected to the other end of the third swing rod B33. A spring support pin B105 is provided at a position near the end of the lower swing rod assembly on the body B1, and the two sides of the lower return torsion spring B26 are respectively sandwiched between the end of the lower swing rod assembly and the spring support pin B105.

[0082] like Fig.21 As shown, a blocking pin B106 is provided on the main body B1. 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 return torsion spring B26, the third rocker arm B33 is close to the blocking pin B106, and the lower follower rocker arm B28 is close to the blocking rod B31 on the lower rocker arm assembly under the pulling force of the lower return spring B30. At this time, the lower follower bearing B29 just contacts with the lowest position of the second cam surface B402.

[0083] like Fig.21 As shown in (a) and 21 (b), when the compound cam B4 rotates clockwise as shown in the figure (as shown in Fig.21In the direction ① marked in (a), the working surface of the compound cam B4 gradually rises from the lowest surface, and the second cam surface B402 drives the lower follower bearing B29 to move away from the compound cam B4 (i.e., toward the blocking rod B31). Since it is blocked by the blocking rod B31, the lower follower bearing B29 cannot rotate around its axis, and thus drives the third swing rod B33 to rotate counterclockwise (i.e., move away from the compound cam B4, as shown in FIG. Fig.21 (a) in the direction ②), the third swing rod B33 pushes the lower hook member B25 to rotate through the connecting rod B32, so that the lower hook member B25 rotates counterclockwise (such as Fig.21 (a) indicates the direction ③).

[0084] When the composite cam B4 rotates counterclockwise, the lower hook member B25 is automatically disengaged through the reverse rotation of the lower swing lever assembly, so that the lower hook member B25 does not follow the rotation of the composite cam B4. Fig.21 (c) and Fig.21 As shown in (d), 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 return torsion spring B26, the third rocker arm B33 is close to the blocking pin B106, and the lower follower rocker arm B28 is close to the blocking rod B31 on the lower rocker arm assembly under the pulling force of the lower return spring B30. At this time, the lower follower bearing B29 just contacts with the lowest position of the second cam surface B402.

[0085] When the compound cam B4 rotates counterclockwise (such as Fig.21 (c) direction ⑤), starting from the lowest surface of the second cam surface B402, the second cam surface B402 drives the lower carrier bearing B29 to rotate clockwise (i.e., move away from the cam direction, i.e., away from the blocking rod B31 direction, as shown in FIG. Fig.21 (c) Direction ⑥), the rotation force of the compound cam B4 is greater than the pulling force of the lower return spring B30, and the lower follower rocker B28 rotates around its rotation axis with the compound cam B4. At this time, the third rocker B33 will not follow the rotation of the compound cam B4 and follow it. Correspondingly, the connecting rod B32 will not drive the lower hook B25 to swing. Therefore, this structure realizes that the compound cam B4 rotates clockwise, and the third rocker B33 and the lower hook B25 can follow the swing; the compound cam B4 rotates counterclockwise, and the third rocker B33 and the lower hook B25 do not move, thereby realizing follow-up separation. During the counterclockwise rotation of the compound cam B4, as long as the force direction of the lower follower bearing B29 is guaranteed to be away from the blocking rod B31, then except for the rotation of the lower follower rocker B28 around its support axis, the third rocker B33 and the connecting rod B32 and the lower hook B25 will not follow the movement.

[0086] During the clockwise and counterclockwise rotation of the above-mentioned compound cam B4, when the working surface of the compound cam B4 passes over the highest point of the second cam surface B402, the third rocker arm B33 can be reset under the action of the lower reset torsion spring B26, so that the third rocker arm B33 is close to the blocking pin B106. At the same time, 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 rod B31 on the lower rocker arm assembly.

[0087] Please also read Fig. 22 and Fig.23 , the gear module is transmission-connected 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 cable tie tail. The first driven gear set B35 includes a first driven gear shaft B3501 and a first transmission gear B3502 and a first tying gear B3503 fixedly mounted on the first driven gear shaft B3501. In the present embodiment, the first transmission gear B3502 and the first tying gear B3503 are both integrated with the first driven gear shaft B3501, and the two are arranged up and down along the axial direction. The second driven gear set B36 includes a second driven gear shaft B3601 and a second transmission gear B3602 and a second tying gear B3603 fixedly mounted on the second driven gear shaft B3601. In the present embodiment, the second transmission gear B3602 and the second tying gear B3603 are both integrated with the second driven gear shaft B3601, and the two are arranged up and down along the axial direction. The first and second driven gear shafts B3501 and B3601 are both rotatably mounted on the body B1 through bearings. The gear teeth of the first binding gear B3503 have the same pitch as the self-locking internal teeth on the cable tie, and the two can mesh.

[0088] When the cable tie I is tied, the power output gear B6 drives the first transmission gear B3502, and the first transmission gear B3502 further drives the second transmission gear B3602. The first and second tying gears B3503 and B3603 rotate together with the first and second transmission gears B3502 and B3602 respectively, and the tail of the cable tie passes between the first and second tying gears B3503 and B3603. The first tying gear B3503 engages with the self-locking internal teeth of the cable tie I, so that as the first tying gear B3503 rotates, the tail of the cable tie will be clamped between the first and second tying gears B3503 and B3603, and will be pulled accordingly.

[0089] In addition, the gear module described above also includes a bridge gear set B37, which is transmission-connected between the power output gear B6 and the first driven gear set B35. The bridge gear set B37 includes a bridge gear rotating shaft B3701 and two bridge transmission gears B3702 fixedly mounted on the bridge gear rotating shaft B3701. In this embodiment, the two bridge transmission gears B3702 are both integral with the bridge gear rotating shaft B3701, and the two are arranged up and down along the axial direction. The bridge gear rotating shaft B3701 is rotatably mounted on the body B1 through a bearing, one of the bridge transmission gears B3702 is meshed with the power output gear B6, and the other bridge transmission gear B3702 is transmission-connected with the first transmission gear B3502, and the first transmission gear B3502 is meshed with the second transmission gear B3602.

[0090] In order to ensure that the first binding gear B3503 is more stably meshed with the inner teeth of the cable tie I, the gear module also includes a third driven gear set B38. The third driven gear set B38 includes a third driven gear shaft B3801 and a third transmission gear B3802 and a third binding gear B3803 fixed on the third driven gear shaft B3801. In this embodiment, the third driven gear shaft B3801 is rotatably mounted on the body B1 through a bearing, and the third transmission gear B3802 and the third binding gear B3803 are both integrated with the third driven gear shaft B3801, and the two are arranged up and down along the axial direction. The first, second and third binding gears B3503, B3603 and B3803 are distributed in a triangle, with the first binding gear B3503 being located on the inner side of the cable tie I, and the second and third binding gears B3603 and B3803 being located on the outer side of the cable tie I. In this way, it can ensure that the first binding gear B3503 and the inner teeth of the cable tie I are engaged the most, the engagement is the most stable, and the tightening tension of the cable tie I is also the greatest.

[0091] The first, second, and third transmission gears B3502, B3602, and B3802 and one of the bridge transmission gears B3702 are located on the same side, and the first, second, and third lashing gears B3503, B3603, and B3803 and another bridge transmission gear B3702 are located on the same side. The power transmission of the gear module is carried out in the following manner: The power is transmitted from the power output gear B6 to one of the bridge transmission gears B3702, and then to the third transmission gear B3802 through another bridge transmission gear B3702, and then to the first transmission gear B3502 from the third transmission gear B3802, and the first transmission gear B3502 drives the second transmission gear B3602. The first, second and third tying gears B3503, B3603 and B3803 form a cable tie tying gear set, the gear teeth of the first tying gear B3503 contact the inner teeth of the cable tie I, and the second and third tying gears B3603 and B3803 contact the cable tie I from the back.

[0092] Please also read Fig.24 When tying the cable tie I, the cable tie head of the cable tie I is stuck in the corresponding clamping groove B102 of the body B1, and the cable tie tail passes through the inner hole of the cable tie head under the action of the upper hook B14, and enters between the first and second tying gears B3503 and B3603 from the through hole B103 at the bottom of the clamping groove B102. The first and second tying gears B3503 and B3603 rotate continuously, and the back of the cable tie I is pushed forward by the second tying gear B3603. The gear teeth of the first tying gear B3503 instantly mesh with the inner teeth of the tail of the cable tie I, and the cable tie I moves forward under the pulling force of the meshing teeth of the first tying gear B3503. After that, the back of the cable tie I contacts the third tying gear B3803, and the third tying gear B3803 supports the back of the cable tie I, so that the other teeth on the inner side of the cable tie I mesh with the gear teeth of the first tying gear B3503 again. In this way, the tail of the cable tie I is between the first, second, and third tying gears B3503, B3603, and B3803 (hereinafter referred to as the "tie tying gear set"), and is pulled forward by the joint action of the cable tie tying gear set until the cable tie ring becomes the smallest and the product is tied to the tightest. Finally, the cable tie tying gear set is stuck and stops. At this time, the resistance of the cable tie tying gear set will increase instantly, and the resistance is greater than the output force set by the power output gear B6. The power output gear B6 and the main shaft B3 jump out, which does not affect the continued rotation of the main shaft B3 and the motor B2. After the cable tie I is tied tightly, the motor B2 and the spindle B3 reverse, and at this time, the cable tie tying gear set will also reverse, and the tail of the cable tie I will exit the gear as the cable tie tying gear set reverses, and finally the tied product cable tie I can be separated from the automatic tying system.

[0093] In this embodiment, the body B1 is provided with a blowing pipeline for blowing air to the gear module, which can be used to blow air to 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 connected to the blowing gas inlet B107, and the outlet end of the blowing pipeline is located between the gear groups of the gear module.

[0094] The automatic lashing system mentioned above realizes lashing by the movement and stop of the motor B2 and the machine control system. Its working process is roughly as follows: like Fig.25 As shown, the automatic lashing system is at the origin position, at which time the motor B2 does not move, the motor B2 is at the origin position, the upper hook B14 and the lower hook B25 are not closed, and a certain opening is left at the free ends of the two.

[0095] like Fig.26 As shown, the product II to be tied is placed from the opening to a suitable position in the tying operation space.

[0096] like Fig. 27As shown, the motor B2 starts to rotate an angle and then pauses. At this time, the cam module follows and rotates an angle, and the lower hook B25 is driven to swing an angle and maintain it. At this time, the opening between the upper hook B14 and the lower hook B25 is closed. In this way, a closed loop is formed between the main body B1, the upper hook B14 and the lower hook B25, which serves as a binding operation space.

[0097] like Fig.28 As shown, the cable tie I is quickly blown in by high-pressure gas from the entrance of the cable tie track B101 from the conveying unit of the automatic feeding system A, and the cable tie I will come in along the first groove section B1011, and its tail end will pass through the grooves on the second groove section B1012 and the upper hook member B14 and the lower hook member B25, and finally the cable tie head will stop at the clamping groove B102, so that the cable tie I is delivered in place. From the entire annular groove of the clamping groove B102, the upper hook member B14 and the lower groove member B25, as long as the circumference of the entire annular groove is designed so that its length is at an appropriate value (theoretically less than the length of the cable tie I), it can be ensured that the cable tie I will not be stuck during the feeding movement and can be smoothly delivered to the position.

[0098] like Fig.29 As shown, the motor B2 continues to rotate forward, driving the cam module to continue to rotate. At this time, the upper hook B14 is driven by the composite cam B4 to rotate to the set angle, and the tail of the cable tie is pushed forward during the rotation. The tail of the cable tie passes through the positioning hole of the cable tie head and the through hole B103 at the bottom of the positioning groove B102, and extends directly between the first and second binding gears B2703 and B2803. Since the distal repose angle of the second cam surface B402 is greater than the sum of the lift angle and the distal repose angle of the first cam surface B401, during this process, the lower hook B25 remains in a closed state.

[0099] like Fig.30 As shown, since the cable tie gear set rotates synchronously with the motor B2, when the cable tie tail is pushed by the upper hook B14, the first tying gear B3503 will instantly mesh with the inner teeth of the cable tie I, thereby pulling the cable tie I forward until the cable tie I is tied to the product II and stuck (at this time, the power output gear B6 will jump out). In this process, under the action of the upper reset spring B15 and the upper reset torsion 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 reset torsion spring B26 and the lower reset 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 both return to the origin.

[0100] like Fig.31As shown, the motor B2 moves forward to the position according to the set angle (at this time, the cable tie I has been tightened in place), and then the motor B2 reverses and returns to the origin, the gear module follows the reverse rotation, and the cable tie tail exits the gear module synchronously. Finally, the tied product II can be removed from the automatic tying system through the opening between the upper hook B14 and the lower hook B25 to complete the tying.

[0101] In the cable tie binding machine of the present invention, the automatic feeding system A can automatically transport a number of scattered cable ties I one by one to the specified position of the rear-stage automatic binding system B body B1, and the automatic binding system B adopts a cam module. The binding process of the cable tie I is completely completed by a single motor B2 driving the cam module and the gear module in cooperation with 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 in a fully automated cable tie binding production line.

[0102] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cable tie binding machine, characterized in that: It includes an automatic feeding system and an automatic tying system. The automatic feeding system includes a feeding unit, a material dividing unit and a conveying unit. The material dividing unit is located between the feeding unit and the conveying unit. The automatic tying system includes a body, a cam module, a motor, an upper hook module, a lower hook module and a gear module. The conveying unit is located between the material dividing unit and the body of the automatic tying system. The main body is provided with a slot for accommodating the cable tie head, and the bottom of the slot is provided with a through hole for the cable tie tail to pass through; The cam module comprises a main shaft, a compound cam, a power input gear and a power output gear, the main shaft is rotatably mounted on the main body, the compound cam and the power input gear are both fixedly connected to the main shaft, the power output gear is relatively rotatably sleeved on the main shaft, the compound cam has a first cam surface and a second cam surface arranged at intervals, the first and second cam surfaces are arranged alternately, and the distal repose angle of the second cam surface is greater than the sum of the lift angle and the distal repose angle of the first cam surface; The motor is drivingly connected to the power input gear; The upper hook module comprises an upper hook, an upper swing rod assembly and an upper return spring, wherein the upper hook is rotatably mounted on the body and is relatively rotatably connected to one end of the upper swing rod assembly, and the other end of the upper swing rod assembly is provided with an upper swing rod follower assembly, wherein the upper swing rod follower assembly comprises an upper follower bearing, and the upper follower bearing is located within the working range of the first cam curved surface, and one end of the upper return spring is connected to the body, and the other end thereof is connected to one end of the upper swing rod assembly close to the upper swing rod follower assembly; The lower hook module comprises a lower hook, a lower swing lever assembly and a lower return torsion spring, wherein the lower hook is rotatably mounted on the body and is relatively rotatably connected to one end of the lower swing lever assembly, the lower swing lever assembly is rotatably mounted on the body, and a lower swing lever follower assembly is arranged thereon, the lower swing lever follower assembly comprises a lower follower bearing, the lower follower bearing is located within the working range of the second cam curved surface, a blocking rod for limiting the swing amplitude of the lower follower bearing is arranged on one side of the lower follower bearing on the lower swing lever assembly, and the lower return torsion spring is sleeved on the rotating shaft of the lower swing lever assembly; The gear module is drivingly connected to the power output gear, and comprises 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 according to claim 1, characterized in that: The feeding unit comprises a vibration plate and a linear feeder which can automatically sort the cable ties. Both the vibration plate and the linear feeder are provided with a cable tie track. The cable tie track of the linear feeder is connected to the terminal outlet of the cable tie track of the vibration plate.

3. The cable tie binding machine according to claim 2, characterized in that: The material dispensing unit comprises a track body, a pushing assembly, a stopping assembly and a detector; the track body is located at the end of the linear feeder and is provided with a linear tie slide groove, and the tie slide groove is vertically located at the end outlet of the 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 tie slide groove, the pushing body is connected with the piston of the pushing cylinder and is slidably mounted on the track body, the pushing block is located in the tie slide groove and is fixedly connected to the pushing body; the stopping assembly comprises a stopping cylinder and a stopping slide block, the piston of the stopping cylinder is axially perpendicular to the tie slide groove, the stopping slide block is at the free end of the piston of the stopping cylinder, a stopping groove for the stopping slide block to pass through is provided at the position of the track body corresponding to the stopping slide block, and the stopping groove is communicated with the tie slide groove.

4. The cable tie binding machine according to claim 3, characterized in that: The pushing assembly also includes a cable tie cover plate, a guide groove is opened 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 can be slidably inserted into the guide groove, the cable tie cover plate protrudes downward at one end away from the pushing cylinder, and the cover is placed above the groove surface of the cable tie slide groove.

5. The cable tie binding machine according to claim 2, characterized in that: The conveying unit includes a cylinder body, an air intake pipe and a conveying pipe. The cylinder body is located at one end of the track body away from the pushing cylinder, and a cable tie linear channel is opened therein. The cable tie linear channel is connected to the end outlet of the cable tie slide. A cylinder valve that can open / close the cable tie linear channel is provided in the cylinder body. The air intake 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.

6. The cable tie binding machine according to 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, and the torque controller includes a first friction plate, a second friction plate, a butterfly spring and a locking nut. The first friction plate is clamped between the power input gear and the power output gear, and the second friction plate, the butterfly spring and the locking nut are sequentially sleeved on the main shaft along the main shaft axis away from the compound cam.

7. The cable tie binding machine according to claim 6, characterized in that: The torque controller also includes a first isolation gasket and a second isolation gasket. The first and second isolation gaskets are sleeved on the main shaft. The first isolation gasket is clamped between the second friction plate and the butterfly spring plate, and the second isolation gasket is clamped between the butterfly spring plate and the locking nut.

8. The cable tie tying machine according to any one of claims 1 to 5, characterized in that: A bearing swing groove is provided on the upper swing arm assembly at a position close to the upper follower bearing, and a convex column that can swing in the bearing swing groove protrudes from the end of the upper follower bearing close to the bearing swing groove. In an initial state, the distance L between the bottom of the bearing swing groove and the center of rotation of the composite cam 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 convex column at the end of the upper follower bearing.

9. The cable tie tying machine according to 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 pivoted on the main body, one end of which is connected to the upper hook member for relative rotation and sliding, the second swing arm is rotatably pivoted on the main body, one end of which is connected to the other end of the first swing arm for relative rotation and sliding, the upper return spring is connected to the other end of the second swing arm, and the upper swing arm follower assembly is installed on the second swing arm.

10. The cable tie tying machine according to any one of claims 1 to 5, characterized in that: The upper rocker follower assembly also includes an upper follower rocker and an upper return torsion spring for returning the upper follower bearing. The upper follower rocker is rotatably mounted on the upper rocker assembly, the upper follower bearing is mounted on the free end of the upper follower rocker, and the upper return torsion spring is sleeved on the rotating shaft of the upper follower rocker.

11. The cable tie tying machine according to any one of claims 1 to 5, characterized in that: The lower swing rod assembly includes a connecting rod and a third swing rod. The lower hook and the third swing rod are rotatably pivoted to the two ends of the connecting rod respectively. The third swing rod is rotatably installed on the main body. The lower swing rod follower assembly and the blocking rod are both located at one end of the third swing rod.

12. The cable tie tying machine according to any one of claims 1 to 5, characterized in that: The lower swing arm follower assembly also includes a lower follower swing arm and a lower return spring for returning 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 thereof is connected to the other end of the lower swing arm assembly away from the lower hook.

13. The cable tie binding machine according to 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 fixed 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 fixed on the second driven gear shaft; the first and second driven gear shafts can be rotatably mounted on the main body; the gear teeth of the first binding gear have the same pitch as the self-locking internal teeth on the cable tie.

14. The cable tie binding machine according to claim 13, characterized in that: The gear module also includes a bridge gear set, which is transmission-connected between the power output gear and the second driven gear set, and includes a bridge gear shaft and two bridge transmission gears fixed on the bridge gear shaft. The bridge gear shaft is rotatably mounted on the body, one of the bridge transmission gears is meshed with the power output gear, and the other bridge transmission gear is transmission-connected with the first transmission gear, and the first transmission gear is meshed with the second transmission gear.

15. The cable tie binding machine according to claim 14, characterized in that: 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 fixed on the third driven gear shaft. The third driven gear shaft is rotatably mounted on the main body, and the third transmission gear is meshed with one of the bridge transmission gears and is simultaneously meshed with the first transmission gear. The first, second and third binding gears are distributed in a triangle, and the first binding gear is located on the inner side of the cable tie, and the second and third binding gears are located on the outer side of the cable tie.

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