Novel strapping machine with torsion adjustable device

Abstract

The utility model discloses a novel strapping machine with a torsion adjustable device. The novel strapping machine comprises a shell, a rack, a guide claw mechanism and a tensioning mechanism, wherein the guide claw mechanism and the tensioning mechanism are respectively arranged on the rack; the tensioning mechanism comprises a belt pulling wheel assembly located above the penetrating hole, a motor serving as a power source and a torsion adjustable device. The torsion adjustable device comprises a first planetary gear assembly, a clutch assembly and a second planetary gear assembly. According to the utility model, a torsion adjustable device with a novel structure is adopted in the tensioning mechanism, and the torsion adjustable device can also form a clutch action, so that the tensioning action on the drawstring can be favorably realized in a non-stop state.

Description

Technical Field

[0001] The utility model relates to the technical field of cable tie machines, in particular to a novel cable tie machine with a torque adjustable device. Background Art

[0002] Cable ties (also known as drawstrings or nylon straps) are widely used tools for fixing or bundling items. They are usually made of plastic injection molding and have certain strength and durability.

[0003] For a cable tie machine, application publication number CN111591490A discloses a cable tie machine, which specifically discloses a shell, a frame arranged on the shell and a guide claw arranged on the frame, the guide claw including a first guide claw and a second guide claw respectively hinged on the frame and corresponding to each other, and the first guide claw and the second guide claw are both provided with guide grooves that cooperate with each other to guide the cable tie to run, the first guide claw is hooked inward by a push rod and a cylinder, and the cylinder drives the push rod to move; a through hole is provided in the push rod that passes through its upper and lower end surfaces and can allow the tail of the cable tie to pass through; an inclined surface extending from the front or rear of the through hole to the through hole is provided on the wall surface of the through hole, so as to form a cutter connected to the through hole on the front side or rear side of the through hole accordingly; when the cylinder drives the push rod to move, it drives the first guide claw to hook inward, and when the cylinder resets, it drives the push rod to reset and the cutter cuts the cable tie. The cable tie machine also includes a tensioning mechanism; the tensioning mechanism includes a strap driving wheel located above the perforation and at least one strap passive wheel cooperating with the strap driving wheel, and a motor for driving the strap driving wheel and the strap passive wheel; the strap driving wheel and the strap passive wheel are both arranged on the frame. The cam is adapted to engage a gear of the driver and the actuator is engaged to the actuator, and the actuator is engaged with the actuator member and the actuator is engaged with the actuator in an intermittent manner.

[0004] The above-mentioned strapping machine can prevent the damage of the motor and other parts caused by the excessive tension torque of the strapping when the strapping active wheel and the strapping passive wheel tighten the strapping, and further prevent the damage of the whole machine. However, in order to meet the market demand, it is necessary to provide a strapping machine with a new structure of the torque adjustable device to meet the different needs of the market. The utility model discloses

[0005] In view of the problems existing in the prior art, the utility model discloses a novel strapping machine with a torque adjustable device, which adopts a new structure of the torque adjustable device in the tensioning mechanism, and can also form a clutching action, thereby facilitating the tensioning action of the strapping under the condition of no shutdown.

[0006] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0007] 18. The swiftly and minutely adjusting device for a wood-planer as claimed in claim 15, wherein said linking rod and said adjusting base are pivotally connected to each other with a bolt, and said bolt has a round shank to contact with said linking rod of said second cam. said bolt has a round shank to contact with said linking rod of said second cam. a movable rod, two extrusion blocks respectively connected to both sides of the first end of the driving rod, and two friction blocks respectively connected to the other two sides of the first end of the driving rod and respectively covered on the sides of the two extrusion blocks; the second planetary gear assembly includes a hollow second sun gear that can be movably mounted on the second end of the driving rod along the length direction of the driving rod, at least two second planetary gears meshed around the second sun gear, a second ring gear meshed around the second planetary gear, a second planet carrier fixed to the second ring gear and used to mount the second planetary gear, a top rod that can be movably passed through the second sun gear along the length direction of the second sun gear and with its first end abutting against the second end of the driving rod, a spring abutting against the second end of the top rod, and a cap pressed on the spring and connected to the frame; the second ring gear is transmission-connected to the pulley assembly; the driving rod can be used to push the two extrusion blocks outward by being inserted into the friction mounting cavity, thereby driving the two friction blocks to move outward; during the outward movement of the friction block, the friction between it and the side wall of the friction mounting cavity can be increased. The above arrangement enables the torque adjustable device to conveniently realize clutch action.

[0008] The additional structure of the above technical solution also includes the following solutions:

[0009] Furthermore, a first inclined surface inclined toward the middle of the end surface of the first end is provided on both sides of the first end of the driving rod, and a clamping block protruding outward is provided on the other two sides; a second inclined surface corresponding to the first inclined surface is provided on one side of each of the extrusion blocks, and the first inclined surface and the second inclined surface abut against each other; a clamping groove is provided on the inner side of each of the friction blocks for engaging with the clamping block; the two clamping blocks are matched and clamped in the two clamping grooves. The above arrangement facilitates the coordination between the driving rod, the extrusion block, and the friction block.

[0010] Furthermore, each of the extrusion blocks has an angular extrusion portion on the side facing away from the drive rod; each of the friction blocks has an arcuate surface on the side facing away from the drive rod, and two third inclined surfaces on the side facing the drive rod, respectively, for engaging with the side edges of the two extrusion portions. This arrangement facilitates the two extrusion blocks to push the two friction blocks outward.

[0011] Furthermore, the second end of the drive rod has a rectangular cross-section; a rectangular through-hole with a rectangular cross-section is provided within the end of the drive rod that is fitted over the second sun gear, and the second end of the drive rod is matingly inserted into the rectangular through-hole. This arrangement ensures a stable connection between the drive rod and the second sun gear.

[0012] Furthermore, a tapered groove is provided on the end surface of the second end of the driving rod, and the first end of the push rod is correspondingly tapered; the first end of the push rod can be matched and inserted into the tapered groove. This arrangement ensures the stability between the driving rod and the push rod.

[0013] Furthermore, a set of positioning posts with external threads on the outer side, which are located on the second sun gear, are connected to the frame; an internal thread is provided on the inner side of the cap; the cap is threadedly connected to the positioning posts and is used to press the spring. This arrangement allows the cap to be easily twisted to adjust the elastic force of the spring.

[0014] Furthermore, external teeth are provided on the outer sides of the second ring gear, and the external teeth are connected to the pulley assembly through a transmission gear. The above arrangement facilitates transmission between the second ring gear and the pulley assembly.

[0015] Furthermore, the belt pulley assembly includes a belt driving pulley and a belt driven pulley respectively arranged on the frame and cooperating with each other; the transmission gear is engaged with the belt driving pulley.

[0016] Furthermore, guide grooves that cooperate with each other are provided on the first guide claw and the second guide claw to guide the cable tie.

[0017] Furthermore, a cutter is provided on the side wall of the perforation, so as to facilitate cutting off the tail of the cable tie.

[0018] The beneficial effects of the utility model are:

[0019] The utility model adopts a torque adjustable device of a new structure in the tensioning mechanism, which can also form a clutch action through the cooperation between the first planetary gear assembly, the clutch assembly and the second planetary gear assembly, so that when the first planetary gear assembly is in the starting state, the clutch assembly and the second planetary gear assembly can be in the starting state or the stopping state. The design is ingenious, which is conducive to realizing the tensioning action of the pull belt without stopping the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the utility model Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the internal structure of the utility model Figure 1 ;

[0022] Figure 3 This is a schematic diagram of the internal structure of the utility model Figure 2 ;

[0023] Figure 4 This is a schematic diagram of the local structure of the utility model Figure 1 ;

[0024] Figure 5 This is a schematic diagram of the local structure of the utility model Figure 2 ;

[0025] Figure 6 This is a schematic diagram of the local structure of the utility model Figure 3 ;

[0026] Figure 7 The first planetary gear assembly and the clutch assembly of the utility model are exploded Figure 1 ;

[0027] Figure 8 The first planetary gear assembly and the clutch assembly of the utility model are exploded Figure 2 ;

[0028] Figure 9 It is a structural schematic diagram of the second planetary gear assembly of the utility model;

[0029] Figure 10 The explosion of the second planetary gear assembly of the utility model Figure 1 ;

[0030] Figure 11The explosion of the second planetary gear assembly of the utility model Figure 2 ;

[0031] Figure 12 It is a structural schematic diagram of the spring and the positioning column of the utility model.

[0032] Reference numerals:

[0033] 1. Shell;

[0034] 2. Frame; 21. Positioning column; 22. Bracket;

[0035] 3. Guide claw mechanism; 31. First guide claw; 32. Second guide claw; 33. Push rod; 331. Perforation; 34. Cylinder; 35. Guide groove; 36. Cutter;

[0036] 4. Puller pulley assembly; 41. Puller driving pulley; 42. Puller driven pulley; 43. Transmission gear;

[0037] 5. Motor;

[0038] 6. First planetary gear assembly; 61. First sun gear; 62. First planetary gear; 63. First ring gear; 64. First planet carrier; 641. Friction mounting cavity;

[0039] 7. Clutch assembly; 71. Drive rod; 711. First inclined surface; 712. Clamping block; 713. Conical groove; 72. Extrusion block; 721. Second inclined surface; 722. Extrusion portion; 73. Friction block; 731. Clamping groove; 732. Third inclined surface;

[0040] 8. Second planetary gear assembly; 81. Second sun gear; 811. Rectangular through hole; 82. Second planetary gear; 83. Second ring gear; 831. External teeth; 84. Second planet carrier; 85. Push rod; 86. Spring; 87. Cover cap. DETAILED DESCRIPTION

[0041] The utility model will be further described below with reference to the accompanying drawings and specific embodiments. The following description is merely illustrative and does not limit the scope of protection of the utility model.

[0042] like Figures 1-12 As shown, a novel cable tie machine with an adjustable torque device includes a housing 1, a frame 2 arranged on the housing 1, and a guide claw mechanism 3 and a tensioning mechanism respectively arranged on the frame 2.

[0043] like Figure 1-Figure 3As shown in the figure, for the guide claw mechanism 3, it comprises a first guide claw 31 and a second guide claw 32 which are hingedly arranged on the frame 2 and cooperated with each other, the first guide claw 31 can be inwardly hooked by the driving of a push rod 33 and a cylinder 34 which are arranged on the frame 2 respectively, the cylinder 34 can be used to drive the push rod 33 to move; a through hole 331 is arranged in the push rod 33; and a cutter 36 is arranged on the side wall of the through hole 331, since the cutter 36 is prior art, here will not be described in detail.

[0044] As shown in the figure, a guide slot 35 is arranged on the first guide claw 31 and the second guide claw 32, and the guide slot 35 is cooperated with each other, so as to guide the operation of the cable tie. Figure 1-Figure 3

[0045] As shown in the figure, of course, a trigger (not marked in the figure) for controlling the second guide claw 32 is arranged on the frame 2, but since the trigger is prior art, here will not be described in detail. Figure 1-Figure 3

[0046] As shown in the figure, for the tensioning mechanism, it comprises a cable wheel assembly 4 which is arranged above the through hole, a motor 5 as a power source and a torsion adjustable device; specifically, the torsion adjustable device comprises a first planetary gear assembly 6, a clutch assembly 7 and a second planetary gear assembly 8. Figure 1-Figure 3 As shown in the figure, the first planetary gear assembly 6 comprises a first sun gear 61 which is in transmission connection with the motor 5, at least two first planetary gears 62 which are engaged around the first sun gear 61, a first ring gear 63 which is engaged around the first planetary gears 62 and fixed on the frame 2 and a first carrier 64 which is used to install the first planetary gears 62 at the first end; a friction installation cavity 641 is arranged at the second end of the first carrier 64. Therefore, through the above arrangement, the first sun gear 61 can be driven by the motor 5, so as to synchronously drive the first planetary gears 62 and the first carrier 64 which is used to install the first planetary gears 62 to rotate.

[0047] Figure 4-Figure 8 As shown in the figure, in the embodiment, the first planetary gears 62 are provided with four which are uniformly distributed.

[0048] As shown in the figure, the second planetary gear assembly 8 comprises a second sun gear 81 which is in transmission connection with the first planetary gear assembly 6, at least two second planetary gears 82 which are engaged around the second sun gear 81, a second ring gear 83 which is engaged around the second planetary gears 82 and fixed on the frame 2 and a second carrier 84 which is used to install the second planetary gears 82 at the first end; a friction installation cavity 841 is arranged at the second end of the second carrier 84. Therefore, through the above arrangement, the second sun gear 81 can be driven by the first planetary gear assembly 6, so as to synchronously drive the second planetary gears 82 and the second carrier 84 which is used to install the second planetary gears 82 to rotate. Figure 4-Figure 8

[0049] As shown in the figure, the second planetary gears 82 are provided with four which are uniformly distributed. Figure 4-Figure 8 ​​​​As shown, the clutch assembly 7 includes a drive rod 71 having a first end inserted into the friction mounting cavity 641, two extrusion blocks 72 connected to both sides of the first end of the drive rod 71, and two friction blocks 73 connected to the other two sides of the first end of the drive rod 71 and respectively covering the sides of the two extrusion blocks 72. Therefore, the above arrangement facilitates the two extrusion blocks 72 and the two friction blocks 73 to cooperate with the drive rod 71 to achieve a clutching action. Specifically, after the drive rod 71 is inserted into the friction mounting cavity 641, it can be used to push the two extrusion blocks 72 to move outward (i.e., separate from each other), thereby driving the two friction blocks 73 to move outward (i.e., separate from each other); during the outward movement of the friction blocks 73, the friction force between them and the side walls of the friction mounting cavity 641 can be increased. When the friction force is large enough, the first planetary carrier 64 can be used to drive the clutch assembly 7 to rotate synchronously.

[0050] like Figures 9-12 As shown, the second planetary gear assembly 8 includes a hollow second sun gear 81 that can be movably mounted on the second end of the drive rod 71 along the length direction of the drive rod 71, at least two second planetary gears 82 meshing around the second sun gear 81, a second ring gear 83 meshing around the second planetary gear 82, a second planet carrier 84 fixed to the second ring gear 83 and used to mount the second planetary gear 82, a top rod 85 that can be movably inserted into the second sun gear 81 along the length direction of the second sun gear 81 and abutted against the second end of the drive rod 71 at its first end, a spring 86 abutting against the second end of the top rod 85, and a cap 87 pressed against the spring 86 and connected to the frame 2; the second ring gear 83 is transmission-connected to the pulley assembly 4. Therefore, through the above arrangement, the drive rod 71 can be used to drive the second sun gear 81 to rotate, and when the second sun gear 81 rotates, it can also drive the second planetary gears 82, the second planet carrier 84, and the second ring gear 83 to rotate, ultimately transmitting power to the pulley assembly 4.

[0051] like Figure 4-Figure 12 As shown, specifically, external teeth 831 are provided around the outer sides of the second ring gear 83; the external teeth 831 are connected to the pulley assembly 4 via a transmission gear 43. More specifically, the pulley assembly 4 includes a pulley driving pulley 41 and a pulley driven pulley 42, which are respectively provided on the frame 2 and cooperate with each other; the transmission gear 43 meshes with the pulley driving pulley 41. Therefore, during the rotation of the second ring gear 83, the transmission gear 43 can synchronously drive the pulley driving pulley 41 and the pulley driven pulley 42 to rotate.

[0052] like Figure 4-Figure 8As shown, preferably, a first inclined surface 711 inclined toward the middle of the end surface of the first end is provided on both sides of the first end of the driving rod 71, and a clamping block 712 protruding outward is provided on the other two sides; a second inclined surface 721 corresponding to the first inclined surface 711 is provided on one side of each extrusion block 72, and the first inclined surface 711 and the second inclined surface 721 abut against each other; a clamping groove 731 for engaging with the clamping block 712 is provided on the inner side of each friction block 73; the two clamping blocks 712 are matched and clamped in the two clamping grooves 731. Therefore, through the above-mentioned arrangement, in the process of the driving rod 71 moving into the friction mounting cavity 641, the first inclined surface 711 can be used to push the second inclined surface 721 of the two extrusion blocks 72, so that the two extrusion blocks 72 will move outwards respectively (that is, separate from each other), and after the extrusion blocks 72 move outwards, they will correspondingly push the two friction blocks 73 to move outwards (that is, separate from each other) until they are tightly fitted on the side wall of the friction mounting cavity 641, and the friction force between the two is relatively large at this time; in this way, when the first planetary carrier 64 rotates, these friction forces can be used to drive the driving rod 71, the friction block 73 and the extrusion block 72 to rotate synchronously, and the driving rod 71 will drive the second sun gear 81, the second planetary gear 82, the second planetary carrier 84 and the second ring gear 83 to rotate, and finally transmit the power to the pulley assembly 4. Of course, if the two extrusion blocks 72 and the two friction blocks 73 approach each other, they will push the drive rod 71 to move out of the friction mounting cavity 641, and then the push rod 85 will be used to compress the spring 86. At this time, the friction force between the outer wall of the friction block 73 and the side wall of the friction mounting cavity 641 will become smaller, so that the first planetary carrier 64 will not drive the friction block 73 to rotate synchronously when rotating, and will not drive the extrusion block 72, the drive rod 71 and the corresponding components in the second planetary gear assembly 8 to rotate; and when the subsequent extension force of the spring 86 pushes the drive rod 71 to reset through the push rod 85, the drive rod 71 will push the two extrusion blocks 72 and the two friction blocks 73 apart from each other and the spring 86 will always maintain the extension force. In this way, the friction force between the outer wall of the friction block 73 and the side wall of the friction mounting cavity 641 can be maintained sufficiently large, so that the first planetary carrier 64 can drive the corresponding components in the clutch assembly 7 and the second planetary gear assembly 8 to rotate when rotating.

[0053] like Figure 4-Figure 8As shown, each extrusion block 72 has an angular extrusion portion 722 on the side facing away from the drive rod 71; each friction block 73 has an arcuate surface on the side facing away from the drive rod 71, and two third inclined surfaces 732 are respectively provided on the side facing the drive rod 71 for mating with the side edges of the two extrusion portions 722. Therefore, by providing the angular extrusion portions 722 on the extrusion blocks 72 and the third inclined surfaces 732 on the friction blocks 73, the two extrusion blocks 722 and the two friction blocks 73 can be more closely fitted together, thereby allowing the two extrusion blocks 722 to more stably and smoothly spread the two friction blocks 73 apart.

[0054] like Figure 4-Figure 8 As shown, the cross-section of the second end of the driving rod 71 is rectangular; a rectangular through-hole 811 with a rectangular cross-section is provided in the end of the second sun gear 81 that is sleeved on the driving rod 71, and the second end of the driving rod 71 is matched and inserted into the rectangular through-hole 811. Therefore, by providing the driving rod 71 with a rectangular cross-section at the second end and the second sun gear 81 with a rectangular through-hole 811, it is possible to ensure that after the second end of the driving rod 71 is inserted into the rectangular through-hole 811, the driving rod 71 can stably drive the second sun gear 81 to rotate when it rotates, without "slipping". Moreover, even if the driving rod 71 moves axially for a certain distance, it will not affect the cooperation between the two.

[0055] like Figure 4-Figure 8 As shown, a tapered groove 713 is provided on the end surface of the second end of the driving rod 71, and the first end of the push rod 85 is also tapered correspondingly; the first end of the push rod 85 can be inserted into the tapered groove 713. This arrangement can improve the connection stability between the driving rod 71 and the push rod 85.

[0056] like Figures 1-8 As shown, a set of positioning posts 21 provided on the second sun gear 81 and having external threads on the outside are connected to the frame 2; an internal thread is provided on the inside of a cap 87; the cap 87 is threadedly connected to the positioning posts 21 and is used to press the spring 86. Therefore, the above arrangement allows the cap 87 to be easily positioned; in addition, since the cap 87 is threadedly connected to the positioning posts 21, the elastic force of the spring 86 can be adjusted by twisting the cap 87 on the positioning posts 21, so that different forces of pressure are applied to the drive rod 71 through the push rod 85, thereby adjusting the force with which the drive rod 71 pushes the two extrusion blocks 72 and the two friction blocks 73 apart.

[0057] Specifically, the positioning column 21 is connected to the frame 2 via a bracket 22 .

[0058] The specific operating principle of the utility model is introduced below to facilitate understanding of the utility model:

[0059] First, press the trigger to close the first guide claw 31 and the second guide claw 32;

[0060] Next, the motor 5 is started and drives the first sun gear 61 to rotate through a gear transmission assembly (not shown), thereby synchronously driving the first planetary gears 62 and the first planet carrier 64 to rotate;

[0061] Next, since the friction between the outer wall of the friction block 73 and the side wall of the friction mounting cavity 641 is now large enough, the friction can be used to synchronously drive the clutch assembly 7 to rotate when the first planet carrier 64 rotates. When the clutch assembly 7 rotates, it uses the second end of the drive rod 71 to drive the second sun gear 81 to rotate, and then drives the second ring gear 83 to rotate through the second planet gears 82 and the second planet carrier 84.

[0062] Next, the second ring gear 83 drives the transmission gear 43, the pulley driving wheel 41 and the pulley driven wheel 42 to rotate in sequence through the external teeth 831, thereby tightening the cable tie;

[0063] Next, the feeding mechanism (not shown) feeds the cable tie and allows it to pass through the cable tie track (not shown) on the frame 2 and sequentially pass through the guide groove of the first guide claw 31 and the guide groove of the second guide claw 32. At this time, a portion of the tail of the cable tie passes through the hole of the head of the cable tie.

[0064] Next, the cylinder 34 is activated, pushing the push rod 33 forward and simultaneously driving the first guide claw 31 to hook inward, so that the tail of the cable tie passes through the through hole 331 of the push rod 33 and is tightened by the pulley driving wheel 41 and the pulley driven wheel 42;

[0065] Next, when the cable tie can no longer be pulled and forces the cable tie driving wheel 4 and the cable tie driven wheel 42 to stop, then, since the cable tie driving wheel 4 and the cable tie driven wheel 42 stop, the second planetary gear assembly 8 will also stop at the same time, but at this time the motor 5 will continue to drive the first sun gear 61 to rotate. In this way, in order to reduce the friction between the outer wall of the friction block 73 and the side wall of the friction mounting cavity 641, it is convenient for the first planetary carrier 64 to continue to rotate but the friction block 73 does not rotate, thereby forcing the two friction blocks 73 to move closer to each other by a certain distance, and then again This causes the two extrusion blocks 72 to move closer to each other by a certain distance. Finally, the first inclined surface 711 and the second inclined surface 721 guide the drive rod 71 to move a certain distance out of the friction mounting cavity 641. The drive rod 71 then compresses the spring 86 via the push rod 85. After the above steps, the friction between the outer wall of the friction block 73 and the side wall of the friction mounting cavity 641 becomes smaller, which is insufficient to allow the first planetary carrier 64 to drive the friction block 73 and other components to rotate synchronously. In other words, the first planetary carrier 64 continues to rotate while the friction block 73 does not rotate.

[0066] Next, the cylinder 34 is reset, causing the push rod 33 to move backward synchronously. When the push rod 33 moves, the cutter 36 cuts off the tail of the cable tie in the perforation 331. After the tail of the cable tie is cut off, the waste is unloaded, thereby completing the process of bundling the items with a cable tie.

[0067] Next, after the waste is unloaded, the belt driving wheel 41 and the belt driven wheel 42 can continue to rotate, and then, the extension force of the spring 86 is used to push the driving rod 71 through the push rod 85 to move into the friction mounting cavity 641;

[0068] Next, when the driving rod 71 moves, the two extrusion blocks 72 will be pushed outward respectively through the guidance of the first inclined surface 711 and the second inclined surface 721. After the two extrusion blocks 72 are pushed out, the two friction blocks 73 will be pushed outward synchronously, so that the friction force between the outer wall of the friction block 73 and the side wall of the friction mounting cavity 641 becomes larger. In this way, the first planetary carrier 64 will drive the clutch assembly 7 such as the friction block 73 to rotate, and finally drive the pulley driving wheel 41 and the pulley driven wheel 42 to rotate through transmission until the next cable tie is tightened.

[0069] To sum up, the utility model adopts a new structure of torque adjustable device in the tensioning mechanism, which can also form a clutch action through the cooperation between the first planetary gear assembly 6, the clutch assembly 7 and the second planetary gear assembly 8, so that when the first planetary gear assembly 6 is in the starting state, the clutch assembly 7 and the second planetary gear assembly 8 can be in the starting state or the stopping state. The design is ingenious, which is conducive to realizing the tensioning action of the pull belt without stopping the machine.

[0070] The present invention is not limited to the above-mentioned embodiments. If various changes or modifications to the present invention do not depart from the spirit and scope of the present invention, and if these changes and modifications fall within the scope of the claims and equivalent technologies of the present invention, the present invention is also intended to include these changes and modifications.

Claims

1. A new type of cable tie machine with an adjustable torque device, characterized by: The machine comprises a housing, a frame mounted on the housing, and a guide claw mechanism and a tensioning mechanism respectively mounted on the frame; the guide claw mechanism comprises a first guide claw and a second guide claw respectively hinged on the frame and cooperating with each other; the first guide claw can be hooked inward by a push rod and a cylinder respectively mounted on the frame; the cylinder can be used to drive the push rod to move; a through hole is provided in the push rod; The tensioning mechanism includes a pulley assembly located above the perforation, a motor as a power source, and a torque adjustable device; the torque adjustable device includes a first planetary gear assembly, a clutch assembly, and a second planetary gear assembly; The first planetary gear assembly includes a first sun gear drivingly connected to the motor, at least two first planetary gears meshing around the first sun gear, a first ring gear meshing around the first planetary gears and fixed to the frame, and a first planet carrier for mounting the first planetary gears at a first end; a friction mounting cavity is defined at a second end of the first planet carrier; The clutch assembly includes a driving rod with a first end inserted into the friction mounting cavity, two extrusion blocks respectively connected to both sides of the first end of the driving rod, and two friction blocks respectively connected to the other two sides of the first end of the driving rod and respectively covering the sides of the two extrusion blocks; The second planetary gear assembly includes a hollow second sun gear that can be movably mounted on the second end of the driving rod along the length direction of the driving rod, at least two second planetary gears meshed around the second sun gear, a second ring gear meshed around the second planetary gears, a second planet carrier fixed to the second ring gear and used for mounting the second planetary gears, a push rod that can be movably inserted into the second sun gear along the length direction of the second sun gear and abutted against the second end of the driving rod, a spring abutted against the second end of the push rod, and a cap pressed on the spring and connected to the frame; the second ring gear is transmission connected to the pulley assembly; The driving rod can be used to push the two extrusion blocks to move outward by being inserted into the friction mounting cavity, thereby driving the two friction blocks to move outward; during the outward movement of the friction block, the friction force between it and the side wall of the friction mounting cavity can be increased.

2. The novel cable tie machine with a torque adjustable device according to claim 1 is characterized in that: A first inclined surface inclined toward the middle of the end surface of the first end is respectively provided on both sides of the first end of the driving rod, and a clamping block protruding outward is respectively provided on the other two sides; a second inclined surface corresponding to the first inclined surface is respectively provided on one side of each of the extrusion blocks, and the first inclined surface and the second inclined surface abut against each other; a clamping groove for engaging with the clamping block is respectively provided on the inner side of each of the friction blocks; the two clamping blocks are matched and clamped in the two clamping grooves.

3. The novel cable tie machine with a torque adjustable device according to claim 2 is characterized in that: On the side of each extrusion block facing away from the driving rod is an angular extrusion portion; on the side of each friction block facing away from the driving rod is an arc-shaped surface and on the side facing the driving rod are respectively provided two third inclined surfaces for fitting with the side edges of the two extrusion portions.

4. The novel cable tie machine with a torque adjustable device according to claim 1 is characterized in that: The cross section of the second end of the driving rod is rectangular; a rectangular through hole with a rectangular cross section is provided in the end of the driving rod on which the second sun gear is sleeved, and the second end of the driving rod is matched and inserted into the rectangular through hole.

5. The novel cable tie machine with a torque adjustable device according to claim 1 is characterized in that: A tapered groove is provided on the end surface of the second end of the driving rod, and the first end of the push rod is correspondingly tapered; the first end of the push rod can be matched and inserted into the tapered groove.

6. The novel cable tie machine with a torque adjustable device according to claim 1, characterized in that: A set of positioning columns arranged on the second sun gear and having external threads on the outside is connected to the frame; an internal thread is arranged on the inside of the cap; the cap is threadedly connected to the positioning columns and is used to press the spring.

7. The novel cable tie machine with a torque adjustable device according to claim 1, characterized in that: External teeth are arranged on the outer sides of the second ring gear; the external teeth are connected to the pulley assembly through a transmission gear.

8. The novel cable tie machine with a torque adjustable device according to claim 7, characterized in that: The belt pulley assembly includes a belt driving wheel and a belt driven wheel which are respectively arranged on the frame and cooperate with each other; the transmission gear is meshed with the belt driving wheel.

9. The novel cable tie machine with a torque adjustable device according to claim 1, characterized in that: The first guide claw and the second guide claw are both provided with guide grooves that cooperate with each other to guide the operation of the cable tie.

10. The novel cable tie machine with a torque adjustable device according to claim 1, characterized in that: A cutter is also provided on the side wall of the perforation.

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