Automatic binding system of ribbon binding machine

Abstract

The invention provides an automatic binding system of a ribbon binding machine. The automatic binding system comprises a body, a cam module, a motor, an upper hook piece module, a lower hook piece module and a gear module. A composite cam of the cam module is fixedly arranged on the main shaft, and the power output gear is located on one side of the power input gear. An upper hook piece of the upper hook piece module is connected to one end of an upper swing rod assembly in a relatively rotating mode, and an upper follow-up bearing is arranged at the other end of the upper swing rod assembly and located in the working range of the curved surface of the first cam. A lower hook piece of the lower hook piece module can be connected to one end of a lower swing rod assembly in a relatively rotating mode, a lower follow-up bearing is arranged on the lower swing rod assembly, the lower follow-up bearing is located in the working range of the curved surface of the second cam, and a blocking rod is arranged on the lower swing rod assembly. The automatic binding system is high in binding speed and high in efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of wire packaging, and in particular to an automatic binding system of 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 tying of cable ties with the help of simple tooling, which is inefficient and costly. Summary of the invention

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

[0004] In order to solve the above technical problems, the present invention provides an automatic tying system for a cable tie tying machine, comprising: The main body has a cable tie track, the bottom of the cable tie track has a clamping groove for accommodating the cable tie head, and the bottom of the clamping groove is provided with a through hole for the cable tie tail to pass through; A cam module, comprising a rotatable main shaft, a composite cam, a power input gear and a power output gear, wherein the main shaft is rotatably installed on the main body, the composite cam fixing sleeve is placed on the main shaft, and 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 power input gear is fixedly connected to the main shaft, and the power output gear is relatively rotatably sleeved on the main shaft and is located on one side of the power input gear; A motor, drivingly connected to the power input gear; An 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 an upper swing rod follower assembly is provided at the other end of the upper swing rod assembly, wherein the upper swing rod follower assembly comprises an upper follower swing rod, an upper follower bearing and an upper return torsion spring for returning the upper follower bearing, wherein the upper follower swing rod is rotatably mounted on the upper swing rod assembly, the upper follower bearing is mounted on the free end of the upper follower swing rod and is located within the working range of the first cam curved surface, the upper return torsion spring is sleeved on the rotating shaft of the upper follower swing rod, 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 rod assembly and a lower return torsion spring. The lower hook can be rotatably mounted on the body and relatively rotatably connected to one end of the lower swing rod assembly. The lower hook and the upper hook together form a binding operation space for the product to be bound to extend into. The lower swing rod assembly can be rotatably mounted on the body and is provided with a lower swing rod follower assembly. The lower swing rod follower assembly comprises a lower follower swing rod, a lower follower bearing and a lower return spring for resetting the lower follower bearing. The rod is rotatably mounted on the lower swing lever assembly, the lower follower bearing is mounted on one end of the lower follower swing lever and is located within the working range of the second cam curved surface, one end of the lower return spring is connected to the other end of the lower follower swing lever, and the other end thereof is connected to the other end of the lower swing lever assembly away from the lower hook member, a blocking rod for limiting the swing amplitude of the lower follower bearing is provided 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; and The gear module is drivingly connected with 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 cable tie rail includes a first groove section and a second groove section, the cross-sectional dimension of the first groove section is larger than the dimension of the cable tie head, the cross-sectional dimension of the second groove section is larger than the dimension of the cable tie tail and smaller than the dimension of the cable tie head, the positioning groove is located between the first and second groove sections, the width of the positioning groove is consistent with that of the first groove section, and its depth is greater than the depth of the first groove section.

[0006] Furthermore, a blowing gas inlet is provided on the main body, a blowing pipeline connected to the blowing gas inlet is provided in the main body, and an outlet end of the blowing pipeline is located between each driven gear set of the gear module.

[0007] Furthermore, a groove is provided on one side of the upper hook and the lower hook close to the binding operation space, the center of the groove is on the same plane as the center of the cable tie track, and the overall length of the positioning groove, the upper hook and the groove on the lower groove is less than the length of the cable tie.

[0008] 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.

[0009] 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.

[0010] 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.

[0011] 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.

[0012] Furthermore, the upper rocker arm follower assembly also includes a mounting seat, which is fixed on the upper rocker arm assembly, and the upper follower rocker arm is rotatably mounted on the mounting seat, and the two sides of the upper return torsion spring are respectively clamped between the mounting seat and the rotating shaft of the upper follower bearing.

[0013] 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 the two ends of the connecting rod, the third swing arm is rotatably mounted on the main body, the lower swing arm follower assembly and the blocking rod are both located at one end of the third swing arm, and the lower return spring is connected to the other end of the third swing arm.

[0014] Furthermore, a spring support pin is provided on the main body at a position close to the end of the lower swing rod assembly, and two sides of the lower return torsion spring are respectively clamped between the end of the lower swing rod assembly and the spring support pin.

[0015] 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.

[0016] Furthermore, the gear module also includes a bridge gear set, and the bridge gear set is transmission-connected between the power output gear and the second driven gear set.

[0017] Furthermore, the bridge gear set 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, the other bridge transmission gear is transmission-connected to 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, the automatic binding system of the present invention is completely completed by a single motor driving the cam module and the gear module during the cable tie binding process, and has the characteristics of simple and stable structure, convenient control, fast binding speed and high efficiency. 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 A three-dimensional schematic diagram of the main body.

[0022] Figure 3 yes Figure 2 Schematic diagram of the local structure of the body shown.

[0023] Figure 4 Schematic diagram of the cable tie at the end of the cable tie track in the body.

[0024] Figure 5 yes Figure 1 Schematic diagram of power transmission between the motor and the cam module.

[0025] Figure 6 yes Figure 1 Schematic diagram of the exploded cam module.

[0026] Figure 7 yes Figure 1Schematic diagram of the transmission between the middle upper hook module and the compound cam.

[0027] Figure 8 yes Figure 7 Schematic diagram of the structure of the second swing rod and the upper swing rod assembly.

[0028] Fig. 9 yes Figure 8 A plan view schematically showing the transmission direction of the second rocker arm, the upper rocker arm follower assembly and the compound cam.

[0029] Fig.10 yes Figure 1 Schematic diagram of the installation and transmission of the middle and lower hook module and the compound cam.

[0030] Fig.11 yes Fig.10 Schematic diagram of the structure of the third swing rod and the lower swing rod follower assembly.

[0031] Fig.12 yes Fig.10 A plan view schematically showing the transmission direction of the third rocker arm and the compound cam.

[0032] Fig.13 yes Figure 1 Schematic diagram of the structure of the gear module.

[0033] Fig.14 yes Fig.13 A schematic structural diagram of the gear module shown in another angle.

[0034] Fig.15 yes Fig.13 Schematic diagram of the gear module performing the cable tie tying process.

[0035] Fig.16 yes Figure 1 The illustrated embodiment is a schematic plan view in an initial state.

[0036] Fig.17 yes Fig.16 The illustrated embodiment is a schematic plan view of a product to be tied when placed therein.

[0037] Fig.18 yes Fig.17 The illustrated embodiment is a plan view showing a state in which the lower hook member is closed.

[0038] Fig.19 yes Fig.18 The illustrated embodiment is a schematic plan view of a cable tie when it is in place.

[0039] Fig. 20 yes Fig.19 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.

[0040] Fig.21 yes Fig. 20 The illustrated embodiment is a plan view of a situation in which the gear module pulls the cable tie to move.

[0041] Fig. 22 yes Fig.21 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

[0042] 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.

[0043] See also Figure 1 , is a preferred embodiment of the present invention. The automatic tying system of the cable tie tying machine is mainly suitable for the automatic tying of nylon cable ties, which includes a main body 1, a cam module, a motor 2, an upper hook module, a lower hook module and a gear module.

[0044] Please also read Figures 2 to 4 The main body 1 provides mounting supports for various functional structures of the automatic binding system, and also provides a track for the movement of the cable tie A. In this embodiment, the main body 1 has a cable tie track 101, 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 101 has a clamping groove 102 for accommodating the cable tie head, and the bottom of the clamping groove 102 is provided with a through hole 103 for the cable tie tail to pass through. The cable tie track 101 includes a first slot section 1011 and a second slot section 1012. The cross-sectional size of the first slot section 1011 is larger than the size of the cable tie head, and the cable tie A can pass through the first slot section 1011 as a whole. The cross-sectional size of the second slot section 1012 is larger than the size of the cable tie tail, and smaller than the size of the cable tie head. The clamping groove 102 is located between the first and second slot sections 1011 and 1012, and its width is consistent with that of the first slot section 1011, and its depth is greater than that of the first slot section 1011. When tying, the cable tie A enters the body 1 from the entrance at one end of the cable tie track 101. After the cable tie A passes through the first slot section 1011 as a whole, the cable tie head stops and is placed in the clamping slot 102. After the cable tie tail passes through the second slot section 1012, it comes out from the exit of the cable tie track 101. Figure 4 The figure shows the state where the cable tie A moves to the final binding position.

[0045] Please also read Figure 5 and Figure 6The cam module includes a rotatable main shaft 3, a compound cam 4, a power input gear 5, a power output gear 6, and a torque controller for adjusting the output torque of the power output gear 6. The motor 2 is connected to the power input gear 5 in a transmission manner. In this embodiment, a gear 201 is fixedly provided at one end of the power output shaft of the motor 2, and the gear 201 is meshed with an idler gear 202, and the idler gear 202 is also meshed with the power input gear 5. The power input gear 5 rotates synchronously with the main shaft 3, and is used to receive the power transmitted from the front motor 2 and transmit the power to the gear module. The compound cam 4 rotates synchronously with the main shaft 3, and is used to drive the upper hook module and the lower hook module.

[0046] The main shaft 3 is perpendicular to the cable tie track 101 and is rotatably installed on the main body 1. In this embodiment, the main shaft 3 is installed on the main body 1 through a bearing 7, and the bearing 7 is located between the power input gear 5 and the compound cam 4. The main shaft 3 is fixedly connected to the inner ring of the bearing 7 and can rotate with the inner ring of the bearing 7. The outer ring of the bearing 7 is fixedly connected to the main body 1, and the inner ring can rotate freely, which supports the rotation of the cam module. The compound cam 4 is located on one side of the main body 1, and the fixed sleeve is placed on the main shaft 3. In this embodiment, the compound cam 4 and the main shaft 3 are connected by a key, and the compound cam 4 can rotate synchronously with the main shaft 3. The compound cam 4 has a first cam surface 401 and a second cam surface 402 that are arranged at intervals. The first and second cam surfaces 401, 402 are arranged alternately and at intervals along the axial direction of the compound cam 4, and the distal repose angle of the second cam surface 402 is greater than the sum of the lift angle and the distal repose angle of the first cam surface 401, so as to ensure that the upper hook module and the lower hook module can be in a working state at the same time (see below for details).

[0047] The power input gear 5, the power output gear 6 and the torque controller are located on the other side of the body 1. The power input gear 5 is fixedly connected to the main shaft 3, and the power output gear 6 is located on one side of the power input gear 5 and is relatively rotatably sleeved on the main shaft 3. The torque controller can adjust the output torque of the power output gear 6. During the rotation of the main shaft 3, when the resistance of the power output gear 6 is less than or equal to the torque, the power output gear 6 can rotate synchronously with the main shaft 3; on the contrary, when the resistance of the power output gear 6 is greater than the torque, the power output gear 6 will not rotate with the main shaft 3, and the main shaft 3 can be separated.

[0048] In this embodiment, the torque controller includes a first friction plate 8, a second friction plate 9, a butterfly spring 10 and a locking nut 11. The first friction plate 8 is sandwiched between the power input gear 5 and the power output gear 6, and the second friction plate 9, the butterfly spring 10 and the locking nut 11 are sequentially sleeved on the main shaft 3 along the axis of the main shaft 3 away from the compound cam 4. In addition, the torque controller also includes a first isolation gasket 12 and a second isolation gasket 13, and the first and second isolation gaskets 12 and 13 are sleeved on the main shaft 3. Among them, the first isolation gasket 12 is sandwiched between the second friction plate 9 and the butterfly spring 10, and the second isolation gasket 13 is sandwiched between the butterfly spring 10 and the locking nut 11. Specifically, one side of the power input gear 5 is flush with the first friction plate 8, and it can move synchronously with the main shaft 3. The two sides of the first friction plate 8 are respectively flush with the power input gear 5 and the power output gear 6; the two sides of the power output gear 6 are respectively flush with the first and second friction plates 8 and 9; the two sides of the second friction plate 9 are respectively flush with the first isolation gasket 12 and the power output gear 6; the two sides of the first isolation gasket 12 are respectively flush with the butterfly spring plate 10 and the second friction plate 9, which can move along the axial direction of the main shaft 3 and rotate synchronously with the main shaft 3; the two sides of the butterfly spring plate 10 are respectively flush with the first and second isolation gaskets 12 and 13; the two sides of the second isolation gasket 13 are respectively flush with the locking nut 11 and the butterfly spring plate 10, which can move along the axial direction of the main shaft 3 and rotate synchronously with the main shaft 3. The locking nut 11 is fixedly connected to the main shaft 3, and is fixedly connected to the main shaft 3 through a thread, and can rotate synchronously with the main shaft 3.

[0049] The principle of the torque controller adjusting the output torque of the power output gear 6 is roughly as follows: The first and second friction plates 8 and 9 are respectively provided on both sides of the power output gear 6, and the outer sides of the first and second friction plates 8 and 9 are respectively in contact with the sides of the power input gear 5 and the first isolation gasket 12. Since the power input gear 5 and the first isolation gasket 12 rotate synchronously with the main shaft 3, as long as there is a certain pressure between the first isolation gasket 12, the second friction plate 9, the power output gear 6, the first friction plate 8 and the power input gear 5 in the axial direction of the main shaft 3, there will be friction between them, and the first and second friction plates 8 and 9 will rotate with the power input gear 5 and the first isolation gasket 12, and the power output gear 6 will also rotate with the first and second friction plates 8 and 9. Among them, the rotational force of the power output gear 6 is the friction between it and the first and second friction plates 8 and 9, 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 6 can be controlled. In the set of parts sleeved on the main shaft 3, except for the butterfly spring 10 whose thickness can change with the pressure change, the thickness of other parts remains unchanged. When they are sequentially mounted on the main shaft 3, the first friction plate 8 is against the power input gear 5 (the power input gear 5 is fixed to the main shaft 3 and is immovable). When the locking nut 11 is screwed inward along the main shaft 3 thread, the whole set of parts will be close together. The further in, the tighter the butterfly spring 10 is pressed, and the pressure between the parts will increase. On the contrary, when the locking nut 11 is screwed outward, the butterfly spring 10 will be loosened, and the pressure between the parts will decrease. In this way, by adjusting the position of the locking nut 11 at the side end, the pressure between the parts can be changed, and the rotation torque of the power output gear 6 will also change accordingly. During the rotation of the main shaft 3, when the resistance of the power output gear 6 is less than or equal to the torque generated by the first and second friction plates 8 and 9, the power output gear 6 will rotate synchronously with the main shaft 3. On the contrary, when the resistance of the power output gear 6 is greater than the torque generated by the first and second friction plates 8 and 9, the power output gear 6 will not rotate with the main shaft 3, and the power output gear 6 will be separated from the main shaft 3.

[0050] Please also read Figure 7 and Figure 8The upper hook module includes an upper hook 14, an upper swing rod assembly and an upper return spring 15. The upper hook 14 is in a hook shape, which is rotatably mounted on the body 1 through the upper hook shaft 16, 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 17, an upper follower bearing 18 and an upper return torsion spring 19 for returning the upper follower bearing 18. The upper follower swing rod 17 is rotatably mounted on the upper swing rod assembly, the upper follower bearing 18 is mounted on the free end of the upper follower swing rod 17, close to the composite cam 4, and located within the working range of the first cam curved surface 401, and the upper return torsion spring 19 is sleeved on the shaft of the upper follower swing rod 17. One end of the upper return spring 15 is connected to the body 1, and the other end is connected to one end of the upper swing rod assembly close to the upper swing rod follower assembly.

[0051] Specifically, the upper swing link assembly includes a first swing link 20 and a second swing link 21. The first swing link 20 is rotatably pivoted to the body 1 through a first swing link shaft 22, and one end of the first swing link 20 is relatively rotatably and slidably connected to the upper hook 14. The second swing link 21 is rotatably pivoted to the body 1 through a second swing link shaft 23, and one end of the second swing link 21 is relatively rotatably and slidably connected to the other end of the first swing link 20, and the upper return spring 15 is connected to the other end of the second swing link 21. In this embodiment, one end of the first swing link 20 has a first swing link waist groove 2001, and an upper hook connecting column 1401 protrudes from the upper hook 14, and the upper hook connecting column 1401 is located in the first swing link waist groove 2001. One end of the second swing link 21 is provided with a second swing link waist groove 2101, and the other end of the first swing link 20 protrudes from the first swing link connecting column 2002, and the first swing link connecting column 2002 is located in the second swing link waist groove 2101. The upper swing rod follower assembly is mounted on the second swing rod 21. In this embodiment, the upper swing rod follower assembly further includes a mounting seat 24, which is fixed on the upper swing rod assembly, the upper follower swing rod 17 is rotatably mounted on the mounting seat 24, and the two sides of the upper return torsion spring 19 are respectively sandwiched between the mounting seat 24 and the rotating shaft of the upper follower bearing 18.

[0052] like Fig. 9 As shown, the body 1 is provided with a blocking pin 104, and in the initial state, the second swing rod 21 and the components thereon are acted upon by the upper return spring 15, close to the blocking pin 104. At this time, the upper follower swing rod 17 is at the right limit position under the action of the upper return torsion spring 19, and the outer surface of the upper follower bearing 18 can just contact the lowest position of the first cam curved surface 401.

[0053] When the compound cam 4 is Fig. 9When the position shown in (a) and 9 (b) rotates clockwise, the cam raises the curved surface, and the first cam curved surface 401 on the compound cam 4 drives the upper follower bearing 18 to swing to the right. Since the upper follower swing rod 17 is already in the rightmost limit position, the second swing rod 21 will only rotate counterclockwise (i.e., away from the direction of the compound cam 4) around the second swing rod rotating shaft 23 together with the upper swing rod follower assembly. When the compound cam 4 rotates clockwise, the second swing rod 21 and its components will swing along with the change of the working curved surface of the first cam curved surface 401. During the swinging process of the second swing rod 21, the second swing rod waist groove 2101 on the second swing rod 21 can drive the first swing rod connecting column 2002, so that the first swing rod 20 can rotate clockwise around the first swing rod rotating shaft 22, and then the first swing rod waist groove 2001 drives the upper hook member connecting column 1401, so that the upper hook member 14 follows and rotates counterclockwise around the upper hook member rotating shaft 16. Thus, the compound cam 4 rotates one circle clockwise, and the upper hook member 14 follows the first cam curved surface 401 to achieve a certain angle swing rotation.

[0054] When the compound cam 4 rotates counterclockwise, the upper hook 14 is designed to be reversed and disengaged, so that the upper hook 14 does not swing along with the rotation of the compound cam 4. Specifically, a bearing swing groove 2103 is provided on the upper swing rod assembly near the upper follower bearing 18 (in this embodiment, the bearing swing groove 2103 is located on the second swing rod 21), and a protruding column 1801 that can swing in the bearing swing groove 2103 protrudes from the end of the upper follower bearing 18 near the bearing swing groove 2103.

[0055] like Fig. 9 As shown in (d), the distance L between the bottom of the bearing swing groove 2103 and the rotation axis of the composite cam 4 satisfies the following relationship: L≥R1+R2+R3. Among them, R1 represents the maximum radius of the first cam surface 401, R2 represents the radius of the upper follower bearing 18, and R3 represents the radius of the end convex column 1801 of the upper follower bearing 18. In this way, the upper follower bearing 18 can swing around the swing support shaft in the range of the bearing swing groove 2103, and when the upper follower bearing 18 is at the highest position of the first cam surface 401 (such as Fig. 9 (d)), it will not touch the limit position of the bearing swing groove 2103 (i.e. the bottom of the bearing swing groove 2103).

[0056] like Fig. 9As shown in (c) and 9 (d), in the initial state, the second swing rod 21 and the components thereon are acted upon by the upper return spring 15, close to the blocking pin 104. At this time, the upper follower swing rod 17 is at the right limit position under the action of the upper return torsion spring 19, and the outer surface of the upper follower bearing 18 can just touch the lowest position of the first cam curved surface 401. When the composite cam 4 rotates counterclockwise, the cam raises the curved surface, and the first cam curved surface 401 on the composite cam 4 drives the upper follower bearing 18 to swing to the left. In this process, since the corresponding bearing swing groove 2103 in this direction is longer (L≥R1+R2+R3), even if the upper follower bearing 18 is at the highest position of the first cam curved surface 401, the convex column 1801 on the upper follower bearing 18 does not touch the left limit position of the bearing swing groove 2103. Therefore, at this time, only the upper follower bearing 18 follows the swing, but the second swing rod 21 does not follow the rotation of the composite cam 4 and follows. Thus, when the composite cam 4 rotates clockwise, the second swing rod 21 and the upper hook 14 can rotate accordingly; when the composite cam 4 rotates counterclockwise, the second swing rod 21 and the upper hook 14 remain stationary, thus achieving follow-up separation. As for the entire upper hook module, it is only necessary to ensure that the tension torque of the upper return spring 15 is much greater than the torque of the upper return torsion spring 19. Then, during the counterclockwise rotation of the composite cam 4, the second swing rod 21 as a whole will remain stationary close to the blocking pin 104, and only the upper follower swing rod 17 will swing independently, thus achieving separation of the swing rod and the cam.

[0057] During the clockwise and counterclockwise rotation of the above-mentioned compound cam 4, when the working surface of the compound cam 4 passes over the highest point of the first cam surface 401, the second rocker arm 21 can be reset under the action of the upper reset spring 15, so that the second rocker arm 21 is close to the blocking pin 104. At the same time, the upper follower bearing 18 can be reset under the action of the upper reset torsion spring 19 and is in the right extreme position.

[0058] Please also read Fig.10 and Fig.11The lower hook module includes a lower hook 25, a lower swing rod assembly and a lower return torsion spring 26. The lower hook 25 is in the shape of a hook, and it and the upper hook 14 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 14 and the lower hook 25 close to the binding operation space, and the center of the groove is on the same plane as the center of the tie track 101. The lower hook 25 is rotatably mounted on the body 1 through the lower hook rotating shaft 27, 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 1, and is provided with a lower swing rod follower assembly. The lower swing rod follower assembly includes a lower follower swing rod 28, a lower follower bearing 29 and a lower return spring 30 for resetting the lower follower bearing 29. The lower follower swing rod 28 is rotatably mounted on the lower swing rod assembly, and the lower follower bearing 29 is mounted on one end of the lower follower swing rod 28, close to the composite cam 4, and located within the working range of the second cam curved surface 402. One end of the lower return spring 30 is connected to the other end of the lower follower swing rod 28, and the other end thereof is connected to the other end of the lower swing rod assembly away from the lower hook 25. A blocking rod 31 for limiting the swing amplitude of the lower follower bearing 29 is provided on one side of the lower swing rod assembly, and the lower return torsion spring 26 is sleeved on the rotating shaft of the lower swing rod assembly. Specifically, the lower swing rod assembly includes a connecting rod 32 and a third swing rod 33, and the lower hook 25 and the third swing rod 33 are rotatably pivoted at both ends of the connecting rod 32. The third swing rod 33 is rotatably mounted on the body 1 through the swing rod rotating shaft 34, and the lower swing rod follower assembly and the blocking rod 31 are both located at one end of the third swing rod 33, and the lower return spring 30 is connected to the other end of the third swing rod 33. A spring support pin 105 is provided on the body 1 at a position close to the end of the lower swing lever assembly, and two sides of the lower return torsion spring 26 are respectively sandwiched between the end of the lower swing lever assembly and the spring support pin 105.

[0059] like Fig.12 As shown, a blocking pin 106 is provided on the main body 1. In the initial state, the second cam surface 402 of the compound cam 4 is at the lowest position. At this time, under the action of the lower return torsion spring 26, the third rocker arm 33 is close to the blocking pin 106, and the lower follower rocker arm 28 is close to the blocking rod 31 on the lower rocker arm assembly under the pulling force of the lower return spring 30. At this time, the lower follower bearing 29 just contacts with the lowest position of the second cam surface 402.

[0060] like Fig.12 As shown in (a) and 12 (b), when the composite cam 4 rotates clockwise as shown in the figure (as shown in Fig.12In the direction ① indicated in (a), the working surface of the compound cam 4 gradually rises from the lowest surface, and the second cam surface 402 drives the lower follower bearing 29 to move away from the compound cam 4 (i.e., toward the blocking rod 31). Since the lower follower bearing 29 is blocked by the blocking rod 31, it cannot rotate around its rotation axis, and thus drives the third swing rod 33 to rotate counterclockwise (i.e., move away from the compound cam 4, as shown in FIG. Fig.12 (a) in the direction ②), the third swing rod 33 pushes the lower hook member 25 to rotate through the connecting rod 32, so that the lower hook member 25 rotates counterclockwise (such as Fig.12 (a) indicates the direction ③).

[0061] When the composite cam 4 rotates counterclockwise, the lower hook 25 is automatically disengaged by the reverse rotation of the lower swing lever assembly, so that the lower hook 25 does not follow the rotation of the composite cam 4. Fig.12 (c) and Fig.12 As shown in (d), in the initial state, the second cam surface 402 of the compound cam 4 is at the lowest position. At this time, under the action of the lower return torsion spring 26, the third rocker arm 33 is close to the blocking pin 106, and the lower follower rocker arm 28 is close to the blocking rod 31 on the lower rocker arm assembly under the pulling force of the lower return spring 30. At this time, the lower follower bearing 29 just contacts with the lowest position of the second cam surface 402.

[0062] When the compound cam 4 rotates counterclockwise (such as Fig.12 (c) direction ⑤), starting from the lowest surface of the second cam surface 402, the second cam surface 402 drives the lower carrier bearing 29 to rotate in a clockwise direction (i.e., moving away from the cam direction, i.e., away from the blocking rod 31, as shown in FIG. Fig.12 (c) Direction ⑥), the rotational force of the compound cam 4 is greater than the pulling force of the lower return spring 30, and the lower follower rocker 28 rotates around its rotation axis with the compound cam 4. At this time, the third rocker 33 will not follow the rotation of the compound cam 4 and follow it. Correspondingly, the connecting rod 32 will not drive the lower hook 25 to swing. Therefore, this structure realizes that the compound cam 4 rotates clockwise, and the third rocker 33 and the lower hook 25 can follow the swing; the compound cam 4 rotates counterclockwise, and the third rocker 33 and the lower hook 25 do not move, thereby realizing the follow-up separation. During the counterclockwise rotation of the compound cam 4, as long as the force direction of the lower follower bearing 29 is ensured to be away from the blocking rod 31, then except for the rotation of the lower follower rocker 28 around its support axis, the third rocker 33 and the connecting rod 32 and the lower hook 25 will not follow the movement.

[0063] During the clockwise and counterclockwise rotation of the above-mentioned compound cam 4, when the working surface of the compound cam 4 passes over the highest point of the second cam surface 402, the third rocker arm 33 can be reset under the action of the lower reset torsion spring 26, so that the third rocker arm 33 is close to the blocking pin 106. At the same time, the lower follower bearing 29 can be reset under the action of the lower reset spring 30, so that the lower follower bearing 29 is close to the blocking rod 31 on the lower rocker arm assembly.

[0064] Please also read Fig.13 and Fig.14 , the gear module is transmission-connected with the power output gear 6, and includes a first driven gear set 35 and a second driven gear set 36 for clamping and pulling the cable tie tail. The first driven gear set 35 includes a first driven gear shaft 3501 and a first transmission gear 3502 and a first tying gear 3503 fixedly mounted on the first driven gear shaft 3501. In the present embodiment, the first transmission gear 3502 and the first tying gear 3503 are both integrated with the first driven gear shaft 3501, and the two are arranged up and down along the axial direction. The second driven gear set 36 includes a second driven gear shaft 3601 and a second transmission gear 3602 and a second tying gear 3603 fixedly mounted on the second driven gear shaft 3601. In the present embodiment, the second transmission gear 3602 and the second tying gear 3603 are both integrated with the second driven gear shaft 3601, and the two are arranged up and down along the axial direction. The first and second driven gear shafts 3501 and 3601 are both rotatably mounted on the main body 1 through bearings. The gear teeth of the first binding gear 3503 have the same pitch as the self-locking internal teeth on the cable tie, and the two can mesh.

[0065] When the cable tie A is tied, the power output gear 6 drives the first transmission gear 3502, and the first transmission gear 3502 further drives the second transmission gear 3602. The first and second tying gears 3503 and 3603 rotate together with the first and second transmission gears 3502 and 3602 respectively, and the tail of the cable tie passes between the first and second tying gears 3503 and 3603. The first tying gear 3503 engages with the self-locking internal teeth of the cable tie A, so that as the first tying gear 3503 rotates, the tail of the cable tie will be clamped between the first and second tying gears 3503 and 3603 and pulled accordingly.

[0066] In addition, the gear module described above also includes a bridge gear set 37, which is transmission-connected between the power output gear 6 and the first driven gear set 35. The bridge gear set 37 includes a bridge gear shaft 3701 and two bridge transmission gears 3702 fixedly mounted on the bridge gear shaft 3701. In this embodiment, the two bridge transmission gears 3702 are both integrated with the bridge gear shaft 3701, and the two are arranged up and down along the axial direction. The bridge gear shaft 3701 is rotatably mounted on the body 1 through a bearing, one of the bridge transmission gears 3702 is meshed with the power output gear 6, and the other bridge transmission gear 3702 is transmission-connected with the first transmission gear 3502, and the first transmission gear 3502 is meshed with the second transmission gear 3602.

[0067] In order to ensure that the first binding gear 3503 is more stably meshed with the inner teeth of the cable tie A, the gear module further includes a third driven gear set 38. The third driven gear set 38 includes a third driven gear shaft 3801 and a third transmission gear 3802 and a third binding gear 3803 fixed on the third driven gear shaft 3801. In this embodiment, the third driven gear shaft 3801 is rotatably mounted on the body 1 through a bearing, and the third transmission gear 3802 and the third binding gear 3803 are both integral with the third driven gear shaft 3801, and the two are arranged up and down along the axial direction. The first, second, and third binding gears 3503, 3603, and 3803 are distributed in a triangular shape, with the first binding gear 3503 located on the inner side of the cable tie A, and the second and third binding gears 3603 and 3803 located on the outer side of the cable tie A. In this way, it can be ensured that the first binding gear 3503 and the inner teeth of the cable tie A are meshed the most, the meshing is the most stable, and the tightening tension of the cable tie A is also the largest.

[0068] The first, second, and third transmission gears 3502, 3602, 3802 and one of the bridge transmission gears 3702 are located on the same side, and the first, second, and third lashing gears 3503, 3603, 3803 and another of the bridge transmission gears 3702 are located on the same side. The power transmission of the gear module is performed in the following manner: The power is transmitted from the power output gear 6 to one of the bridge transmission gears 3702, and then to the third transmission gear 3802 through another bridge transmission gear 3702, and then to the first transmission gear 3502 from the third transmission gear 3802, and the first transmission gear 3502 drives the second transmission gear 3602. The first, second and third tying gears 3503, 3603 and 3803 form a cable tie tying gear set, the gear teeth of the first tying gear 3503 contact the inner teeth of the cable tie A, and the second and third tying gears 3603 and 3803 contact the cable tie A from the back.

[0069] Please also read Fig.15When tying the cable tie A, the cable tie head of the cable tie A is stuck in the corresponding clamping groove 102 of the body 1, and the cable tie tail passes through the inner hole of the cable tie head under the action of the upper hook 14, and enters between the first and second tying gears 3503 and 3603 from the through hole 103 at the bottom of the clamping groove 102. The first and second tying gears 3503 and 3603 rotate continuously, and the back of the cable tie A is pushed forward by the second tying gear 3603. The gear teeth of the first tying gear 3503 instantly mesh with the inner teeth of the tail of the cable tie A, and the cable tie A moves forward under the pulling force of the meshing teeth of the first tying gear 3503. After that, the back of the cable tie A contacts the third tying gear 3803, and the third tying gear 3803 supports the back of the cable tie A, so that the other teeth on the inner side of the cable tie A mesh with the gear teeth of the first tying gear 3503 again. In this way, the tail of the cable tie A is between the first, second, and third tying gears 3503, 3603, and 3803 (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 loop 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 instantly increase, and the resistance is greater than the output force set by the power output gear 6. The power output gear 6 and the main shaft 3 jump out, which does not affect the continued rotation of the main shaft 3 and the motor 2. After the cable tie A is tied tightly, the motor 2 and the main shaft 3 reverse, and at this time, the cable tie tying gear set will also reverse, and the tail of the cable tie A will exit the gear as the cable tie tying gear set reverses, and finally the tied product cable tie A can be separated from the automatic tying system.

[0070] In this embodiment, the main body 1 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 main body 1 is provided with a blowing gas inlet 107, and the main body 1 is provided with a blowing pipeline connected to the blowing gas inlet 107, and the outlet end of the blowing pipeline is located between the gear groups of the gear module.

[0071] The automatic lashing system mentioned above realizes lashing by the movement and stop of the motor 2 and the machine control system. The working process is roughly as follows: like Fig.16 As shown, the automatic lashing system is at the origin position, at which time the motor 2 is stationary, the motor 2 is at the origin position, the upper hook 14 and the lower hook 25 are not closed, and a certain opening is left at the free ends of the two.

[0072] like Fig.17 As shown, the product B to be tied is placed from the opening to a suitable position in the tying operation space.

[0073] like Fig.18As shown, the motor 2 starts to rotate an angle and then pauses. At this time, the cam module follows and rotates an angle, and the lower hook 25 is driven to swing an angle and maintain it. At this time, the opening between the upper hook 14 and the lower hook 25 is closed. In this way, a closed loop is formed between the main body 1, the upper hook 14 and the lower hook 25 as a binding operation space.

[0074] like Fig.19 As shown, the cable tie A is quickly blown in by high-pressure gas from the entrance of the cable tie track 101, and the cable tie A will come in along the first slot section 1011, and its tail end will pass through the second slot section 1012 and the grooves on the upper hook member 14 and the lower hook member 25, and finally the cable tie head will stop at the clamping slot 102, so that the cable tie A is delivered in place. From the entire annular groove of the clamping slot 102, the upper hook member 14 and the lower groove member 25, 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 A), it can be ensured that the cable tie A will not be stuck during the feeding movement and can be smoothly delivered to the position.

[0075] like Fig. 20 As shown, the motor 2 continues to rotate forward, driving the cam module to continue to rotate. At this time, the upper hook 14 is driven by the composite cam 4 to rotate to a set angle, and the tail of the cable tie is pushed forward during the rotation. The tail of the cable tie passes through the locking hole of the cable tie head and the through hole 103 at the bottom of the locking groove 102, and extends directly between the first and second tying gears 2703 and 2803. Since the distal repose angle of the second cam surface 402 is greater than the sum of the lift angle and the distal repose angle of the first cam surface 401, during this process, the lower hook 25 remains in a closed state.

[0076] like Fig.21 As shown, since the cable tie gear set rotates synchronously with the motor 2, when the cable tie tail is pushed by the upper hook 14, the first tying gear 3503 will instantly mesh with the inner teeth of the cable tie A, thereby pulling the cable tie A forward until the cable tie A is tied to the product B and stuck (at this time, the power output gear 6 will jump out). In this process, under the action of the upper reset spring 15 and the upper reset torsion spring 19, the upper hook 14 and the upper follower bearing 18 are reset, and at the same time, under the action of the lower reset torsion spring 26 and the lower reset spring 30, the lower hook 25 and the lower follower bearing 29 are reset, so that the upper hook 14 and the lower hook 25 are returned to the origin.

[0077] like Fig. 22 As shown, the motor 2 moves forward to the position according to the set angle (at this time, the cable tie A has been tightened in place), and then the motor 2 reverses and returns to the origin, the gear module follows the reverse rotation, and the tail of the cable tie synchronously exits the gear module. Finally, the tied product B can be removed from the automatic tying system through the opening between the upper hook 14 and the lower hook 25 to complete the tying.

[0078] The automatic binding system of the present invention adopts a cam module, and the binding process of the cable tie A is completely completed by a single motor 2 driving the cam module and the gear module in cooperation with the control program. It 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 production line for cable tie binding.

[0079] 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. An automatic tying system for a cable tie tying machine, characterized in that: include: The main body has a cable tie track, the bottom of the cable tie track has a clamping groove for accommodating the cable tie head, and the bottom of the clamping groove is provided with a through hole for the cable tie tail to pass through; A cam module, comprising a rotatable main shaft, a composite cam, a power input gear and a power output gear, wherein the main shaft is rotatably installed on the main body, the composite cam fixing sleeve is placed on the main shaft, and 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 power input gear is fixedly connected to the main shaft, and the power output gear is relatively rotatably sleeved on the main shaft and is located on one side of the power input gear; A motor, drivingly connected to the power input gear; An 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 an upper swing rod follower assembly is provided at the other end of the upper swing rod assembly, wherein the upper swing rod follower assembly comprises an upper follower swing rod, an upper follower bearing and an upper return torsion spring for returning the upper follower bearing, wherein the upper follower swing rod is rotatably mounted on the upper swing rod assembly, the upper follower bearing is mounted on the free end of the upper follower swing rod and is located within the working range of the first cam curved surface, the upper return torsion spring is sleeved on the rotating shaft of the upper follower swing rod, 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 rod assembly and a lower return torsion spring. The lower hook can be rotatably mounted on the body and relatively rotatably connected to one end of the lower swing rod assembly. The lower hook and the upper hook together form a binding operation space for the product to be bound to extend into. The lower swing rod assembly can be rotatably mounted on the body and is provided with a lower swing rod follower assembly. The lower swing rod follower assembly comprises a lower follower swing rod, a lower follower bearing and a lower return spring for resetting the lower follower bearing. The rod is rotatably mounted on the lower swing lever assembly, the lower follower bearing is mounted on one end of the lower follower swing lever and is located within the working range of the second cam curved surface, one end of the lower return spring is connected to the other end of the lower follower swing lever, and the other end thereof is connected to the other end of the lower swing lever assembly away from the lower hook member, a blocking rod for limiting the swing amplitude of the lower follower bearing is provided 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; and The gear module is drivingly connected with 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 automatic tying system of the cable tie tying machine according to claim 1, characterized in that: The cable tie track includes a first groove section and a second groove section, the cross-sectional dimension of the first groove section is larger than the size of the cable tie head, the cross-sectional dimension of the second groove section is larger than the size of the cable tie tail and smaller than the size of the cable tie head, the positioning groove is located between the first and second groove sections, the width of the positioning groove is consistent with that of the first groove section, and the depth thereof is greater than the depth of the first groove section.

3. The automatic tying system of the cable tie tying machine according to claim 1, characterized in that: The main body is provided with a blowing gas inlet, and the main body is provided with a blowing pipeline connected with the blowing gas inlet, and the outlet end of the blowing pipeline is located between the driven gear groups of the gear module.

4. The automatic tying system of the cable tie tying machine according to claim 1, characterized in that: A groove is provided on one side of the upper hook and the lower hook close to the binding operation space, the center of the groove is on the same plane as the center of the cable tie track, and the overall length of the positioning groove, the upper hook and the groove on the lower groove is less than the length of the cable tie.

5. The automatic tying system of the cable tie tying machine according to claim 1, 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.

6. The automatic tying system of the cable tie tying machine according to claim 5, 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.

7. The automatic tying system of the cable tie tying machine according to claim 1, 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.

8. The automatic tying system of the cable tie tying machine according to claim 1, 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.

9. The automatic tying system of the cable tie tying machine according to claim 1 or 8, characterized in that: The upper rocker follower assembly also includes a mounting seat, which is fixed on the upper rocker assembly. The upper follower rocker is rotatably mounted on the mounting seat, and the two sides of the upper return torsion spring are respectively clamped between the mounting seat and the rotating shaft of the upper follower bearing.

10. The automatic tying system of the cable tie tying machine according to claim 1, 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 mounted 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. The lower return spring is connected to the other end of the third swing rod.

11. The automatic tying system of the cable tie tying machine according to claim 1 or 10, characterized in that: A spring support pin is provided on the main body at a position close to the end of the lower swing rod assembly, and two sides of the lower return torsion spring are respectively clamped between the end of the lower swing rod assembly and the spring support pin.

12. The automatic tying system of the cable tie tying machine according to claim 1, 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.

13. The automatic tying system of the cable tie tying machine according to claim 12, characterized in that: The gear module also includes a bridge gear set, and the bridge gear set is transmission-connected between the power output gear and the second driven gear set.

14. The automatic tying system of the cable tie tying machine according to claim 13, characterized in that: The bridge gear set 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 connected to the first transmission gear, and the first transmission gear is meshed with the second transmission gear.

15. The automatic tying system of the cable tie tying 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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