A new type of ribbon machine with a torsion adjusting device

Abstract

The utility model discloses a novel take twist force adjusting device's ribbon machine, including shell, frame, guide dog subassembly and tensioning mechanism, tensioning mechanism includes pull belt driving wheel, pull belt driven wheel, tensioning motor and twist force adjusting device, and twist force adjusting device includes base, pivot, pressure piece, transition rod, elastic part, locating piece, fixed cylinder and knob, base is located in frame and is connected with tensioning motor transmission, base is equipped with the slot and is equipped with the embedded position, pivot is connected with pull belt driving wheel transmission and pivot's first end inserts the slot, transition rod's first end and pressure piece are in the pivot and are equipped in proper order, the first end of pressure piece is connected with transition rod's first end, locating piece's first end reaches to pivot outside and is embedded with embedded position and fits cooperation, locating piece's second end cooperates with the second end of pressure piece, fixed cylinder is fixed in frame and the outer end is stretched out shell, and knob is in fixed cylinder and is pressed tightly in elastic part and is equipped with. The utility model can accurately realize the adjustment to the tension of ribbon.

Description

Technical Field

[0001] This utility model relates to the field of cable tie machine technology, specifically to a novel cable tie machine with a torque adjustment device. Background Technology

[0002] For the automatic bundling of ordinary nylon cable ties, there is a desktop cable tie machine design in China. This machine has the following disadvantages: the machine is fixed and can only move the workpiece, making it inflexible in use; due to space limitations, it cannot be used for on-site or internal construction of pipelines, tunnels, or aerial cables for aircraft, ships, trains, automobiles, power lines, and communication equipment; the desktop cable tie machine also has some design flaws, making it inconvenient and unreliable to use; moreover, desktop automatic cable tie machines on the market generally use five motors for drive, which wastes parts and results in a large size.

[0003] Handheld cable tie machines have also appeared on the market. For example, a cable tie machine disclosed in patent announcement number CN111591490B specifically discloses a machine including a housing, a frame mounted on the housing, and guide claws mounted on the frame. The guide claws include a first guide claw and a second guide claw respectively hinged to the frame and correspondingly cooperating with each other. Both the first and second guide claws have cooperating guide grooves to guide the cable ties. The first guide claw is driven inward by a push rod and a cylinder, and the cylinder drives the push rod to move. The push rod has a through hole penetrating its upper and lower end faces, allowing the tail of the cable tie to pass through. A hole extending from the front or rear of the through hole is provided on the wall of the through hole. A bevel is formed on the front or rear side of the perforation to create a cutter connected to the perforation. When the cylinder drives the push rod, it causes the first guide claw to hook inward. When the cylinder resets, it causes the push rod to reset and the cutter cuts the cable tie. The front end of the push rod is hinged to the rear end of the first guide claw, and the rear end of the push rod is fixedly connected to the cylinder. The cutter is located on the front side of the perforation. The bevel extends through the upper and lower end faces of the push rod. The cable tie machine also includes a tensioning mechanism. The tensioning mechanism includes a pull-up drive wheel located above the perforation and at least one pull-up driven wheel that cooperates with the pull-up drive wheel, as well as a motor for driving the pull-up drive wheel and the pull-up driven wheel. Both the pull-up drive wheel and the pull-up driven wheel are mounted on the frame. The tensioning mechanism further includes a cable tie torque adjustable device; the cable tie torque adjustable device includes a base, a rotating shaft, a pressure member, an elastic member, and a positioning member; the base is rotatably mounted on the frame and driven by the motor, a slot is provided on the base, and at least one insertion position is provided on the side wall of the slot; the rotating shaft is drivenly connected to the pull belt drive wheel, and one end of the rotating shaft is inserted into the slot; the elastic member and the pressure member are sequentially arranged inside the rotating shaft along the length direction of the rotating shaft, and one end of the pressure member is connected to one end of the elastic member; at least one positioning member is provided and is locked on the side wall of the rotating shaft, one end of the positioning member extends outside the rotating shaft and this end cooperates with the insertion position, the end face of the end of the positioning member extending out of the rotating shaft is an arc surface, and the other end of the positioning member is movably connected to the other end of the pressure member; a screw is threadedly connected to the other end of the rotating shaft, and one end of the screw is connected to the other end of the elastic member; by the inward contraction of the positioning member, the pressure member moves upward and the elastic member contracts.

[0004] However, the aforementioned cable tie machine still has room for improvement. For example, since the screw is directly connected to the rotating shaft and then to the elastic element, the tension of the cable tie can be set by rotating the screw. However, in actual use, when the operator rotates the screw, the rotating shaft is not normally fixed by any external force. This causes the rotating shaft to rotate synchronously with the screw, meaning that when the shaft and screw rotate simultaneously, the screw cannot exert any external force on the elastic element, thus failing to accurately adjust the tension of the cable tie. Furthermore, using hands or other tools to hold the rotating shaft in place before adjusting the screw is quite cumbersome.

[0005] Therefore, improvements to existing technologies are necessary. Utility Model Content

[0006] In view of the problems existing in the prior art, the purpose of this utility model is to provide a new type of cable tie machine with a torque adjustment device. The structure of the torque adjustment device has been improved so that the shaft will not rotate synchronously with the screw when the operator adjusts the torque. Furthermore, it can conveniently and accurately adjust the tension of the cable tie.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows:

[0008] A novel cable tie machine with a torque adjustment device includes a housing, a frame mounted on the housing, and guide claw assemblies and a tensioning mechanism respectively mounted on the frame. The guide claw assembly includes a first guide claw and a second guide claw respectively hinged to the frame and correspondingly cooperating with each other. Both the first and second guide claws have cooperating guide grooves to guide the cable tie movement. The tensioning mechanism includes a pull-pull drive wheel, a pull-pull driven wheel, a tensioning motor, and a torque adjustment device respectively mounted on the frame. The pull-pull drive wheel cooperates with the pull-pull driven wheel. The torque adjustment device includes a base, a rotating shaft, a pressure member, a transition rod, an elastic member, a positioning member, a fixing cylinder, and a knob. The base is rotatably mounted on the frame and is drive-connected to the tensioning motor. A slot is provided on the base for inserting... At least one embedding position is provided on the side wall of the slot; the rotating shaft is drivenly connected to the pulley drive wheel and the first end of the rotating shaft is inserted into the slot; the first end of the transition rod and the pressure member are sequentially arranged inside the rotating shaft along the length direction of the rotating shaft; the first end of the pressure member is connected to the first end of the transition rod; at least one positioning member is provided and is locked on the side wall of the rotating shaft, the first end of the positioning member is an arc-shaped surface and extends outside the rotating shaft and is fitted with the embedding position, the second end of the positioning member is movably connected to the second end of the pressure member; the fixed cylinder is fixed on the frame and sleeved on the second end of the transition rod and the elastic member, the outer end of the fixed cylinder extends out of the housing through a through hole in the housing; the knob is threadedly sleeved on the fixed cylinder and the knob is pressed against the outer end of the elastic member. By turning the knob, the elastic member can be driven to contract or extend without affecting the rotating shaft, and the transition rod and the pressure member can be driven to make corresponding movements to set the tension force on the cable tie.

[0009] Furthermore, multiple scale values ​​are provided on the outer end face of the knob, distributed around its perimeter; and markings for pointing to the scale values ​​are provided on the outer surface of the housing. These features allow the user to easily and intuitively observe the adjustment range and direction of the torque adjustment, enabling precise torque control.

[0010] Furthermore, the mark is an arrow-shaped mark.

[0011] Furthermore, the transition rod is a T-shaped rod; the rod portion of the transition rod passes through the rotating shaft and is connected to the pressure member; the head of the transition rod abuts against the elastic member.

[0012] Furthermore, the elastic element is a spring or elastic rubber; the pressure element and the positioning element are both steel balls.

[0013] Furthermore, four positioning elements and four embedding positions are provided; the four positioning elements are evenly distributed on the side wall of the rotating shaft; the four embedding positions are evenly distributed on the side wall of the slot. This arrangement allows for more even force distribution and more stable movement of the pressing element.

[0014] Furthermore, a steering gear is provided on the side wall of the rotating shaft; the steering gear is connected to the belt drive wheel via a transmission gear assembly.

[0015] Furthermore, the output shaft of the tensioning motor is connected to the base via a transmission gear assembly.

[0016] Furthermore, the first guide claw can be hooked inward by a push rod and a cylinder, the cylinder driving the push rod to move; the push rod has a through hole extending through its upper and lower end faces, allowing the tail of the cable tie to pass through; a cutter extending from the front or rear of the through hole is provided on the wall of the through hole; the pull belt drive wheel and the pull belt driven wheel mesh with each other and are respectively located above the through hole. This configuration facilitates the driving of the first guide claw and the push rod, as well as the cutting of the tail of the cable tie using the cutter.

[0017] The beneficial effects of this utility model are as follows:

[0018] (I) This utility model separates the rotating shaft and the knob, and after setting a fixed cylinder on the frame, the knob is threaded onto the fixed cylinder. This way, when the operator turns the knob, the rotating shaft will not rotate synchronously. Instead, the knob can act on the pressure member through the elastic element and the transition rod (specifically, the pressure member can be moved closer to or away from the elastic element). That is, the transition member is set between the pressure member and the elastic element, so as to accurately achieve the purpose of adjusting the tension of the cable tie and ensure the adjustment effect.

[0019] In addition, since the staff will not cause the shaft to rotate synchronously when turning the knob, and the knob is designed so that when the staff wants to adjust the tension of the cable tie, they can simply adjust the knob by hand without the need to use other tools (such as screwdrivers) to turn the knob, thus making it convenient to adjust the tension of the cable tie.

[0020] (ii) This utility model ingeniously changes the adjustment method of the torque adjustment device to knob adjustment. The knob is provided with scale values ​​and the outer shell is provided with arrow marks, so that the staff can intuitively observe the range and position of torque adjustment to achieve precise adjustment and greatly facilitate the use. Attached Figure Description

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

[0022] Figure 2 This is an exploded view of this utility model;

[0023] Figure 3 This is a partial structural diagram of the interior of the outer shell of this utility model;

[0024] Figure 4 This is a partial structural diagram of the torque adjustment device of this utility model. Figure 1 ;

[0025] Figure 5 This is a partial structural diagram of the torque adjustment device of this utility model. Figure 2 ;

[0026] Figure 6 A schematic diagram of the push rod and cutter of this utility model.

[0027] Figure label:

[0028] 1. Outer shell; 11. Through hole;

[0029] 2. Rack;

[0030] 3. Guide claw assembly; 31. First guide claw; 32. Second guide claw; 33. Guide groove; 34. Cylinder; 35. Push rod; 36. Through hole; 37. Cutting blade;

[0031] 4. Tensioning mechanism; 41. Belt drive pulley; 42. Belt driven pulley; 43. Tensioning motor; 440. Torque adjustment device; 441. Base; 442. Rotating shaft; 443. Pressure component; 444. Transition rod; 445. Elastic component; 446. Positioning component; 447. Fixing cylinder; 448. Knob; 449. Slot; 450. Embedded position;

[0032] 5. Scale value; 51. Marking. Detailed Implementation

[0033] The utility model will be further described below with reference to the accompanying drawings and specific embodiments. The following description is merely exemplary and does not limit the scope of protection of the utility model.

[0034] like Figures 1-6As shown, a novel cable tie machine with a torque adjustment device includes a housing 1, a frame 2 mounted on the housing 1, and guide claw assemblies 3 and a tensioning mechanism 4 respectively mounted on the frame 2. The guide claw assembly 3 includes a first guide claw 31 and a second guide claw 32 respectively hinged to the frame 2 and correspondingly cooperating with each other. The first guide claw 31 and the second guide claw 32 are provided with mutually cooperating guide grooves 33 to guide the cable tie movement. The first guide claw 31 can be hooked inward by a push rod 35 and a cylinder 34. The cylinder 34 can drive the push rod 35 to move. The push rod 35 is provided with a through hole 36 that passes through its upper and lower end faces and allows the tail of the cable tie to pass through. A cutter 37 is provided on the wall of the through hole 36 extending from the front or rear of the through hole 36. In this embodiment, the cutter 37 is located in front of the through hole 36. Therefore, with the above settings, when the cylinder 34 is reset, it can drive the push rod 35 to reset, which in turn allows the cutter 37 on the push rod 35 to cut off the end of the cable tie that passes through the hole 36.

[0035] like Figure 6 As shown, as a specific configuration, the cutter 37 and the push rod 35 can be integrally formed components, or they can be detachably connected. For ease of manufacturing, in this embodiment, the cutter 37 and the push rod 35 are integrally formed.

[0036] like Figure 3 As shown, the tensioning mechanism 4 includes a belt drive wheel 41, a belt driven wheel 42, a tensioning motor 43, and a torque adjustment device 440, all of which are mounted on the frame 2.

[0037] like Figure 3 As shown, the belt driving pulley 41 and the belt driven pulley 42 cooperate with each other; specifically, the belt driving pulley 41 and the belt driven pulley 42 are meshed with each other and are respectively located above the through hole 36.

[0038] like Figures 1-5As shown, the torque adjustment device 440 includes a base 441, a rotating shaft 442, a pressure member 443, a transition rod 444, an elastic member 445, a positioning member 446, a fixing cylinder 447, and a knob 448. The base 441 is rotatably mounted on the frame 2 and is driven by the tensioning motor 43. A slot 449 is provided on the base 441, and at least one insertion position 450 is provided on the side wall of the slot 449. The rotating shaft 442 is driven by the belt drive wheel 41, and the first end of the rotating shaft 442 is inserted into the slot 449. The second end can also be limited by a set of limiting components (not shown in the figure) to prevent its position from shifting. The first end of the transition rod 444 and the pressure member 443 are driven by the rotating shaft 442. The components are arranged sequentially along the length of the rotating shaft 442; the first end of the pressure member 443 is connected to the first end of the transition rod 444; at least one positioning member 446 is provided and is locked on the side wall of the rotating shaft 442, the first end of the positioning member 446 is an arc-shaped surface and extends outside the rotating shaft 442 and is fitted with the insertion position 450, the second end of the positioning member 446 is movably connected to the second end of the pressure member 443; the fixed cylinder 447 is fixed on the frame 2 and sleeved on the second end of the transition rod 444 and the elastic member 445, the outer end of the fixed cylinder 447 extends out of the outer shell 1 through a through hole 11; the knob 448 is threadedly sleeved on the fixed cylinder 447 and the knob 448 is pressed against the outer end of the elastic member 445.

[0039] like Figures 2-5 As shown, during use, the fixed cylinder 447 is fixed on the frame 2, and the knob 448 is threaded onto the fixed cylinder 447 and then pressed against the elastic element 445, the transition rod 444 and the positioning element 446. Of course, the rotating shaft 442 is not directly connected to the knob 448. By turning the knob 448, the elastic element 445 can be contracted or extended without affecting the rotating shaft 442, and the transition rod 444 and the pressing element 443 can be moved accordingly to set the tension of the cable tie.

[0040] Specifically, when the tension torque of the cable tie reaches or exceeds the preset torque of the elastic element 445, the rotating shaft 442 stops rotating, and the positioning element 446 is forced to contract, thereby driving the pressure element 443 to move towards the transition rod 444. At this time, the elastic element 445 contracts under pressure. Since the positioning element 446 contracts inward, even if the base 441 rotates, it will not damage or drive the rotating shaft 442, thus effectively preventing the tensioning mechanism 4 from tearing the cable tie when it is tightened. During the rotation of the base 441, when the embedded... When the base 441 rotates back to the position of the positioning member 446, the positioning member 446 will be ejected by the elastic force of the elastic member 445. As the base 441 continues to rotate, the positioning member 446 will retract inward. This process is repeated continuously. When the cable tie between the pull belt drive wheel 41 and the pull belt driven wheel 42 is removed, the pull belt drive wheel 41, the pull belt driven wheel 42 and the rotating shaft 442 will no longer be subject to resistance, so that the rotating shaft 442 and the pull belt drive wheel 41 and the pull belt driven wheel 42 can continue to rotate with the base 441.

[0041] In summary, this utility model separates the rotating shaft 442 and the knob 448. Furthermore, by installing a fixed cylinder 447 on the frame 2 and threading the knob 442 onto the fixed cylinder 447, the operator can rotate the knob 448 without simultaneously rotating the rotating shaft 442. Instead, the knob 448 acts on the pressure member 443 through the elastic element 445 and the transition rod 444 (specifically, the pressure member 443 can be moved closer to or further away from the elastic element 445). That is, when the pressure member 443 and... The transition piece 444 is provided between the elastic elements 445, which can accurately achieve the purpose of adjusting the tension of the cable tie and ensure the adjustment effect. In addition, since the rotating shaft 442 will not rotate synchronously when the operator turns the knob 448, and the setting of the knob 448 allows the operator to adjust the tension of the cable tie by hand, without the need to use other tools (such as screwdrivers) to turn the knob 448, thus making it convenient to adjust the tension of the cable tie.

[0042] like Figure 1 As shown, the outer end face of the knob 448 is provided with multiple scale values ​​5 distributed around its perimeter; a mark 51 for pointing to the scale value 5 is provided on the outer surface of the housing 1. Specifically, the mark 51 is an arrow-shaped mark. Therefore, through the above-mentioned arrangement, the user can easily and intuitively observe the adjustment range and direction of torque adjustment, and at the same time, the user can also achieve precise torque adjustment, greatly facilitating use.

[0043] like Figure 5As shown, in this embodiment, the transition rod 444 is a T-shaped rod; the rod portion of the transition rod 444 passes through the rotating shaft 442 and is connected to the pressure member 443; the head of the transition rod 444 abuts against the elastic member 445. This arrangement facilitates transmission between the rotating shaft 442 and the pressure member 443.

[0044] In this embodiment, the elastic element 445 is a spring or elastic rubber; the pressure element 443 and the positioning element 446 are both steel balls.

[0045] like Figure 4 and Figure 5 As shown, in this embodiment, there are four positioning members 446 and four embedding positions 450; the four positioning members 446 are evenly distributed on the side wall of the rotating shaft 442; the four embedding positions 450 are evenly distributed on the side wall of the slot 449. This arrangement allows the pressure member 446 to be subjected to more even force and move more stably.

[0046] like Figure 4 and Figure 5 As shown, in this embodiment, a steering gear (not shown) is provided on the side wall of the rotating shaft 442; the steering gear is connected to the belt drive pulley 41 via a transmission gear assembly (not shown). Additionally, the output shaft of the tensioning motor 43 is also connected to the base 441 via a transmission gear assembly (not shown). Since the aforementioned transmission gear assemblies are all prior art, mainly including planetary gear sets, their structure and principle will not be described in detail here.

[0047] The specific working principle of this utility model is described below to help you understand it:

[0048] First, the first guide claw 31 and the second guide claw 32 close, the tensioning motor 43 starts and drives the belt drive wheel 41 and the belt driven wheel 42 to move through the torque adjustment device 440;

[0049] Next, the feeding mechanism (not shown in the figure) feeds out the cable tie, so that the cable tie passes through the guide groove 33 of the first guide claw 31 and the guide groove 33 of the second guide claw 32 in sequence. At this time, a part of the tail of the cable tie passes through the hole of the head of the cable tie.

[0050] Next, cylinder 34 is activated, pushing push rod 35 forward, and at the same time driving first guide claw 31 to hook inward, so that the tail of the cable tie passes through the through hole 36 of push rod 35 and is tightened by pull belt drive wheel 41 and pull belt driven wheel 42.

[0051] Next, when the cable tie can no longer be pulled, forcing the pull belt drive wheel 41 and the pull belt driven wheel 42 to stop, the rotating shaft 442 also stops synchronously, while the positioning component 446 is forced to perform reciprocating motion of contraction and extension on the rotating shaft 442 because the base 441 continues to rotate;

[0052] Next, cylinder 34 resets, causing push rod 35 to move backward synchronously. While push rod 35 moves, cutter 37 cuts off the tail of cable tie in hole 36. After the tail of cable tie is cut off, waste is discharged through air pipe, thus completing the process of cable tie binding an item. Then tensioning mechanism 4 continues to operate.

[0053] This utility model is not limited to the above-described embodiments. If any modifications or variations to this utility model do not depart from the spirit and scope of this utility model, and if such modifications and variations fall within the scope of the claims and equivalent technologies of this utility model, then this utility model also intends to include such modifications and variations.

Claims

1. A novel cable tie machine with a torque adjustment device, characterized in that: It includes a housing, a frame mounted on the housing, and guide claw assemblies and a tensioning mechanism respectively mounted on the frame; The guide claw assembly includes a first guide claw and a second guide claw that are respectively hinged to the frame and cooperate with each other. Both the first guide claw and the second guide claw are provided with mutually cooperating guide grooves to guide the cable tie movement. The tensioning mechanism includes a belt drive pulley, a belt drive pulley, a tensioning motor, and a torque adjustment device, all mounted on the frame; the belt drive pulley cooperates with the belt drive pulley. The torque adjustment device includes a base, a rotating shaft, a pressure member, a transition rod, an elastic member, a positioning member, a fixing cylinder, and a knob; the base is rotatably mounted on the frame and is drivenly connected to the tensioning motor; a slot is provided on the base, and at least one insertion position is provided on the side wall of the slot; the rotating shaft is drivenly connected to the belt drive pulley, and the first end of the rotating shaft is inserted into the slot; the first end of the transition rod and the pressure member are sequentially arranged inside the rotating shaft along its length; the first end of the pressure member and the transition rod... The first end is connected; the positioning element is provided at least one and is locked on the side wall of the rotating shaft, the first end of the positioning element is an arc-shaped surface and extends outside the rotating shaft and is fitted with the insert position, the second end of the positioning element is movably connected to the second end of the pressing element; the fixed cylinder is fixed on the frame and sleeved on the second end of the transition rod and the elastic element, the outer end of the fixed cylinder extends out of the outer shell through a through hole in the outer shell; the knob is threadedly sleeved on the fixed cylinder and the knob is pressed against the outer end of the elastic element; By turning the knob, the elastic element can be contracted or extended without affecting the rotating shaft, and the transition rod and the pressure element can be moved accordingly to set the tension force on the cable tie.

2. The novel cable tie machine with torque adjustment device according to claim 1, characterized in that: Multiple scale values ​​are provided on the outer end face of the knob, distributed around its perimeter; and markings for pointing to the scale values ​​are provided on the outer surface of the housing.

3. The novel cable tie machine with torque adjustment device according to claim 2, characterized in that: The mark is an arrow-shaped mark.

4. The novel cable tie machine with torque adjustment device according to claim 1, characterized in that: The transition rod is a T-shaped rod; the rod portion of the transition rod passes through the rotating shaft and is connected to the pressure member; the head of the transition rod abuts against the elastic member.

5. The novel cable tie machine with torque adjustment device according to claim 1, characterized in that: The elastic element is a spring or elastic rubber; the pressure element and the positioning element are both steel balls.

6. The novel cable tie machine with torque adjustment device according to claim 1, characterized in that: There are four positioning elements and four embedding positions; the four positioning elements are evenly distributed on the side wall of the rotating shaft; the four embedding positions are evenly distributed on the side wall of the slot.

7. The novel cable tie machine with torque adjustment device according to claim 1, characterized in that: A steering gear is provided on the side wall of the rotating shaft; the steering gear is connected to the belt drive pulley via a transmission gear assembly.

8. The novel cable tie machine with torque adjustment device according to claim 1, characterized in that: The output shaft of the tensioning motor is connected to the base via a transmission gear assembly.

9. The novel cable tie machine with torque adjustment device according to claim 1, characterized in that: The first guide claw can be hooked inward by a push rod and a cylinder, the cylinder driving the push rod to move; the push rod has a through hole that passes through its upper and lower end faces and allows the tail of the cable tie to pass through, and a cutter extending from the front or rear of the through hole is provided on the wall of the through hole; the pull belt drive wheel and the pull belt driven wheel mesh with each other and are respectively located above the through hole.

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