阅读说明：本技术 一种带张力控制器的芯体捆扎机 (Core body binding machine with tension controller ) 是由 刘鸿坤 丰尧 叶志鹏 邓志文 于 2021-09-17 设计创作，主要内容包括：本申请公开了一种带张力控制器的芯体捆扎机,包括依次设置的固定支架、安装支架和连接支架,所述固定支架的侧部安装有开料机构和伺服电机,所述开料机构和所述伺服电机的侧部均安装有同步轮,两个所述同步轮通过同步皮带连接,所述安装支架的侧部安装有缓冲轮,所述连接支架的侧部安装有张力传感器,所述张力传感器和所述缓冲轮的两侧均设置有导轮。本申请在使用时铁丝的张力如果发生变化,张力传感器会感应到变化,进而会将信号传递给伺服电机,伺服电机通过同步皮带将速度及动力传输给开料机构,从而可以调节后续铁丝输送的张力,使钢丝达到捆扎产品需要的张力,有效保障芯体捆扎后钢丝的张力满足产品后续工序的要求。(The application discloses take tension controller's core strapper, including fixed bolster, installing support and the linking bridge that sets gradually, cutting mechanism and servo motor are installed to the lateral part of fixed bolster, cutting mechanism with the synchronizing wheel, two are all installed to servo motor's lateral part the synchronizing wheel passes through synchronous belt and connects, buffer wheel is installed to the lateral part of installing support, tension sensor is installed to the lateral part of linking bridge, tension sensor with the both sides of buffer wheel all are provided with the guide pulley. This application is if the tension of iron wire changes when using, and tension sensor can sense the change, and then can give servo motor with signal transmission, and servo motor gives the mechanism of opening material with speed and power transmission through synchronous belt to can adjust the tension that follow-up iron wire was carried, make the steel wire reach the tension of tying up the product needs, the requirement that the product follow-up process is satisfied to the tension of steel wire after effectively guaranteeing the core is tied up.)

1. The core body strapping machine with the tension controller is characterized by comprising a fixing support (10), a mounting support (11) and a connecting support (12) which are sequentially arranged, wherein a cutting mechanism (3) and a servo motor (1) are installed on the side portion of the fixing support (10), synchronizing wheels (13) are installed on the side portions of the cutting mechanism (3) and the servo motor (1), the two synchronizing wheels (13) are connected through a synchronizing belt (2), a buffer wheel (5) is installed on the side portion of the mounting support (11), a tension sensor (6) is installed on the side portion of the connecting support (12), guide wheels (4) are arranged on two sides of the tension sensor (6) and the buffer wheel (5), the guide wheels (4) located on two sides of the buffer wheel (5) are rotatably installed on the side portion of the mounting support (11) and located above the buffer wheel (5), the guide wheels (4) positioned on two sides of the tension sensor (6) are rotatably installed on the side parts of the connecting support (12) and are arranged in parallel with the tension sensor (6), binding iron wires (7) are installed on the cutting mechanism (3), the binding iron wires (7) are wound on the four guide wheels (4), the buffer wheels (5) and the tension sensor (6), the binding iron wires (7) are wound on the tops of the two guide wheels (4) positioned on the mounting support (11), the binding iron wires (7) are wound on the bottoms of the two guide wheels (4) positioned on the connecting support (12), servo controllers (9) and tension controllers (8) are respectively arranged on the side parts of the fixing support (10) and the connecting support (12), and the servo controllers (9) are connected with the servo motors (1), the tension controller (8) is connected with the tension sensor (6).

2. The core body strapping machine with the tension controller according to claim 1, characterized in that an adjusting bracket (14) is arranged on one side of the connecting bracket (12), a fixed wheel (15) is rotatably mounted on the side of the adjusting bracket (14), an L-shaped rectangular column (16) is arranged on one side of the fixed wheel (15) and is mounted on the side of the adjusting bracket (14), a rectangular block (17) is slidably sleeved on the L-shaped rectangular column (16), a spring is mounted on the top of the L-shaped rectangular column (16), the top end of the spring is connected with the rectangular block (17), a tension moving wheel (18) is rotatably mounted on the side of the rectangular block (17), an adjusting groove is formed on the side of the adjusting bracket (14), a sliding rod (19) is mounted on the inner wall of the top side and the bottom side of the adjusting groove, a sliding strip (20) is slidably sleeved on the sliding rod (19), the side part of the sliding strip (20) is rotatably provided with an adjusting wheel (21), and the sliding strip (20) is connected with the rectangular block (17) through a one-way transmission mechanism; the rectangular block (17) drives the slide bar (20) to move through the one-way transmission mechanism.

3. The core binding machine with the tension controller as claimed in claim 2, wherein the one-way transmission mechanism comprises an L-shaped rod (22), a rack (23), a gear (27), a rotating column (26), a vertical bevel gear (24), a horizontal bevel gear (25), a worm (28), a worm gear (29), an extrusion column (30) and a compression column (31), the rack (23) is mounted on the side of the L-shaped rod (22), the L-shaped rod (22) is connected with the side of the rectangular block (17), the vertical bevel gear (24) and the horizontal bevel gear (25) are engaged and rotatably mounted on the side of the adjusting bracket (14), the rotating column (26) is mounted at the center of the side of the vertical bevel gear (24), the rotating column (26) is fixedly connected with the gear (27), and the gear (27) is engaged with the rack (23), the worm (28) is installed at the center position of the side part of the horizontal bevel gear (25), the worm (28) is meshed with the worm wheel (29), the worm wheel (29) is rotatably installed on the side part of the adjusting support (14), the extrusion column (30) is installed at the eccentric position of the worm wheel (29), the compression column (31) is connected with the side part of the sliding strip (20), the side part of the compression column (31) is provided with an extrusion hole, one end of the extrusion column (30) extends into the extrusion hole, and one end of the tied iron wire (7) sequentially passes through the adjusting wheel (21), the tension moving wheel (18) and the fixed wheel (15).

4. The core binding machine with the tension controller as claimed in claim 2, wherein the rectangular block (17) is provided with a rectangular slot at the bottom end, the top end of the spring is mounted on the inner wall of the rectangular slot at the fixed side, the top end of the L-shaped rectangular column (16) is slidably mounted in the rectangular slot, and the top end of the L-shaped rectangular column (16) is located at the middle position of the rectangular slot.

5. The core binding machine with the tension controller as claimed in claim 3, wherein the side of the adjusting bracket (14) is mounted with a fixed post, two opposite sides of the fixed post are mounted with two fixed rods, and one ends of the two fixed rods far away from the fixed post are respectively connected with the vertical bevel gear (24) and the horizontal bevel gear (25) through bearings.

6. The core strapping machine with tension controller as claimed in claim 3, characterized in that the squeeze bar (30) is located on a center line between the top and the bottom of the worm wheel (29).

7. The core body strapping machine with the tension controller as claimed in claim 2, wherein a stop hole is formed in the side of the L-shaped rectangular column (16), a stop rod (32) is installed in the stop hole, and the stop rod (32) is in contact with the bottom of the rectangular block (17).

8. A tension controller core strapping machine as claimed in claim 3, wherein the gear (27) is located at a central position of the rack (23).

9. The core binding machine with tension controller according to claim 2, wherein the tension moving wheel (18) is located at a position intermediate between the adjusting wheel (21) and the fixed wheel (15), and a rotation center of the tension moving wheel (18) is located below a rotation center of the adjusting wheel (21) and a rotation center of the fixed wheel (15).

Technical Field

The application relates to the technical field of binding machines, in particular to a core binding machine with a tension controller.

Background

In the core production process, the core needs to be bound by iron wires, the core needs to be stable after the core is bound, and therefore the iron wires are required to have certain tension, the bound core can be used only when the core is bound, and when the core is bound by the conventional binding machine, if the tension of the iron wires changes, the core cannot be bound well, so that the subsequent processes of the product are influenced.

Disclosure of Invention

An object of the application is to provide a take tension controller's core strapper, the tension of iron wire if change when this application is used, tension sensor can sense the change, and then can give servo motor with signal transmission, servo motor gives out material mechanism with speed and power transmission through synchronous belt, thereby can adjust the tension that follow-up iron wire was carried, make the steel wire reach the tension of tying up the product needs, the tension of effectively ensuring the core to tie up the back steel wire satisfies the requirement of product follow-up process.

In order to achieve the purpose, the application provides a core strapping machine with a tension controller, which comprises a fixed support, a mounting support and a connecting support which are sequentially arranged, wherein a cutting mechanism and a servo motor are installed on the side part of the fixed support, synchronizing wheels are installed on the cutting mechanism and the side part of the servo motor, the two synchronizing wheels are connected through a synchronous belt, a buffer wheel is installed on the side part of the mounting support, a tension sensor is installed on the side part of the connecting support, guide wheels are arranged on the tension sensor and the two sides of the buffer wheel, the guide wheels on the two sides of the buffer wheel are rotatably installed on the side part of the mounting support and are positioned above the buffer wheel, the guide wheels on the two sides of the tension sensor are rotatably installed on the side part of the connecting support and are arranged in parallel with the tension sensor, a strapping iron wire is installed on the cutting mechanism, the binding iron wire is wound on four guide wheels, buffer wheels and tension sensors, the binding iron wire is wound on two guide wheels positioned on the mounting bracket, the binding iron wire is wound on two guide wheels positioned on the connecting bracket, the bottom of the guide wheels is positioned on the connecting bracket, the side parts of the fixing bracket and the connecting bracket are respectively provided with a servo controller and a tension controller, the servo controller is connected with a servo motor, and the tension controller is connected with the tension sensors.

Preferably, an adjusting bracket is arranged on one side of the connecting bracket, a fixed wheel is rotatably mounted on the side portion of the adjusting bracket, an L-shaped rectangular column mounted on the side portion of the adjusting bracket is arranged on one side of the fixed wheel, a rectangular block is sleeved on the L-shaped rectangular column in a sliding manner, a spring is mounted at the top of the L-shaped rectangular column, the top end of the spring is connected with the rectangular block, a tension moving wheel is rotatably mounted on the side portion of the rectangular block, an adjusting groove is formed in the side portion of the adjusting bracket, sliding rods are mounted on the inner walls of the top side and the bottom side of the adjusting groove, a sliding strip is sleeved on the sliding rods in a sliding manner, an adjusting wheel is rotatably mounted on the side portion of the sliding strip, and the sliding strip is connected with the rectangular block through a one-way transmission mechanism; the rectangular block drives the slide bar to move through the one-way transmission mechanism.

Preferably, the one-way transmission mechanism comprises an L-shaped rod, a rack, a gear, a rotating column, a vertical bevel gear, a horizontal bevel gear, a worm gear, an extrusion column and a compression column, the rack is mounted on the side of the L-shaped rod, the L-shaped rod is connected with the side of the rectangular block, the vertical bevel gear and the horizontal bevel gear are meshed and rotatably mounted on the side of the adjusting bracket, the rotating column is mounted at the central position of the side of the vertical bevel gear, the rotating column is fixedly connected with the gear in a sleeved mode, the gear is meshed with the rack, the worm is mounted at the central position of the side of the horizontal bevel gear, the worm is meshed with the worm gear, the worm gear is rotatably mounted on the side of the adjusting bracket, the extrusion column is mounted at the eccentric position of the worm gear, and the compression column is connected with the side of the slide bar, the lateral part of the pressed column is provided with an extrusion hole, one end of the extrusion column extends into the extrusion hole, and one end of the bundled iron wire sequentially passes through the adjusting wheel, the tension moving wheel and the fixed wheel.

Preferably, the bottom end of the rectangular block is provided with a rectangular groove, the top end of the spring is mounted on the inner wall of the fixed side of the rectangular groove, the top end of the L-shaped rectangular column is slidably mounted in the rectangular groove, and the top end of the L-shaped rectangular column is located in the middle of the rectangular groove.

Preferably, a fixing column is installed on the side portion of the adjusting bracket, two fixing rods are installed on two opposite side portions of the fixing column, and one ends of the two fixing rods, which are far away from the fixing column, are respectively connected with the vertical bevel gear and the horizontal bevel gear through bearings.

Preferably, the compression leg is located on a centerline between the top and bottom of the worm gear.

Preferably, the side part of the L-shaped rectangular column is provided with a blocking hole, a blocking rod is installed in the blocking hole, and the blocking rod is in contact with the bottom of the rectangular block.

Preferably, the gear is located at a central position of the rack.

Preferably, the tension moving wheel is located between the adjusting wheel and the fixed wheel, and the rotation center of the tension moving wheel is located below the rotation center of the adjusting wheel and the rotation center of the fixed wheel.

Has the advantages that:

1. if the tension of the iron wire changes during use, the tension sensor senses the change and transmits a signal to the servo motor, and the servo motor transmits speed and power to the cutting mechanism through the synchronous belt, so that the tension of subsequent iron wire conveying can be adjusted, the steel wire reaches the tension required by a bundled product, and the tension of the steel wire after core bundling can be effectively ensured to meet the requirements of subsequent procedures of the product;

2. this application is when using, when the tension of iron wire changes, the tension removes the wheel and can produce the removal, can make the regulating wheel remove through one-way drive mechanism, when tension is too big, the regulating wheel can move down, thereby make and tie up the holistic distance reduction of iron wire, thereby make and tie up the tension of iron wire and diminish, when tension diminishes, can make the regulating wheel rebound, thereby make and tie up the holistic distance increase of iron wire, enlarge its tension, thereby guarantee the current tension of tying up the iron wire that changes, the later stage of being convenient for uses.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view showing a structure of a core binding machine with a tension controller according to embodiment 1 of the present application;

FIG. 2 is a schematic view showing the structure of a core binding machine with a tension controller according to embodiment 2 of the present application;

FIG. 3 is a schematic view of a portion of the structure of FIG. 2;

fig. 4 is an enlarged schematic view of a portion a in fig. 3.

Reference numerals: 1. a servo motor; 2. a synchronous belt; 3. a cutting mechanism; 4. a guide wheel; 5. a buffer wheel; 6. a tension sensor; 7. binding iron wires; 8. a tension controller; 9. a servo controller; 10. fixing a bracket; 11. mounting a bracket; 12. connecting a bracket; 13. a synchronizing wheel; 14. adjusting the bracket; 15. a fixed wheel; 16. an L-shaped rectangular column; 17. a rectangular block; 18. a tension moving wheel; 19. a slide bar; 20. a slide bar; 21. an adjustment wheel; 22. an L-shaped rod; 23. a rack; 24. a vertical bevel gear; 25. a horizontal bevel gear; 26. rotating the column; 27. a gear; 28. a worm; 29. a worm gear; 30. extruding the column; 31. a pressurized column; 32. a gear lever.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1, a core body strapping machine with a tension controller comprises a fixing support 10, a mounting support 11 and a connecting support 12 which are arranged in sequence, the fixing support 10, the mounting support 11 and the connecting support 12 can be any one of the prior art, a cutting mechanism 3 and a servo motor 1 are arranged on the side portion of the fixing support 10, the cutting mechanism 3 and the servo motor 1 can be any one of the prior art, synchronizing wheels 13 are arranged on the side portions of the cutting mechanism 3 and the servo motor 1, the two synchronizing wheels 13 are connected through a synchronizing belt 2, the synchronizing wheels 13 and the synchronizing belt 2 can be any one of the prior art, a buffer wheel 5 is arranged on the side portion of the mounting support 11, a tension sensor 6 is arranged on the side portion of the connecting support 12, guide wheels 4 are arranged on the two sides of the tension sensor 6 and the buffer wheel 5, the guide wheels 4, the buffer wheels 5 and the tension sensor 6 can be any one of the prior art, the guide wheels 4 positioned at two sides of the buffer wheel 5 are rotatably arranged on the side part of the mounting bracket 11 and positioned above the buffer wheel 5, the guide wheels 4 positioned at two sides of the tension sensor 6 are rotatably arranged on the side part of the connecting bracket 12 and arranged in parallel with the tension sensor 6, the cutting mechanism 3 is provided with a binding iron wire 7, the binding iron wire 7 can be any one of the prior art, the binding iron wire 7 is wound on the four guide wheels 4, the buffer wheel 5 and the tension sensor 6, the binding iron wire 7 is wound on the top parts of the two guide wheels 4 positioned on the mounting bracket 11, the binding iron wire 7 is wound on the bottom parts of the two guide wheels 4 positioned on the connecting bracket 12, the servo controller 9 and the tension controller 8 are respectively arranged at the side parts of the fixing bracket 10 and the connecting bracket 12, the servo controller 9 and the tension controller 8 can be any one of the prior art, the servo controller 9 is connected with the servo motor 1, the tension controller 8 is connected to the tension sensor 6.

Borrow by above-mentioned structure, if the tension of iron wire changes when using, tension sensor 6 can sense the change, and then can give servo motor 1 with signal transmission, and servo motor 1 transmits speed and power for cutting mechanism 3 through synchronous belt 2 to can adjust the tension that follow-up iron wire was carried, make the steel wire reach the tension of tying up the product needs, effectively ensure that the core ties up the tension of back steel wire and satisfies the requirement of product follow-up process.

This embodiment theory of operation, when needing to use, open the material through opening material mechanism 3, can tie up the core through tying up iron wire 7, at the bundling in-process, if tie up the tension of iron wire 7 and produce the change, tension sensor 6 can sense the change, and then tension sensor 6 gives tension controller 8 with signal transmission, tension controller 8 signal transmission gives servo controller 9, servo controller 9 gives servo motor 1 with the signal transmission, servo motor 1 gives out material mechanism 3 with speed and power transmission through synchronous belt 2, thereby reach and make the tension of tying up iron wire 7 reach the design value.

Example 2

On the basis of embodiment 1, referring to fig. 2-4, one side of the connecting bracket 12 is provided with an adjusting bracket 14, the adjusting bracket 14 can be any one in the prior art, the side of the adjusting bracket 14 is rotatably provided with a fixed wheel 15, one side of the fixed wheel 15 is provided with an L-shaped rectangular column 16 which can be mounted on the side of the adjusting bracket 14 in a welding manner in the prior art, the L-shaped rectangular column 16 is slidably sleeved with a rectangular block 17, the top of the L-shaped rectangular column 16 is provided with a spring in a welding manner in the prior art, the fixed wheel 15, the L-shaped rectangular column 16, the rectangular block 17 and the spring can be any one in the prior art, the spring is in a stretching state, the amount of deformation generated by stretching is the same as the tension of the binding iron wire 7, the top end of the spring is connected with the rectangular block 17, the side of the rectangular block 17 is rotatably provided with a tension moving wheel 18, the tension moving wheel 18 can be any one of the prior art, an adjusting groove is formed in the side portion of the adjusting support 14, a sliding rod 19 can be installed on the inner walls of the top side and the bottom side of the adjusting groove in a welding mode in the prior art, a sliding strip 20 is sleeved on the sliding rod 19 in a sliding mode, an adjusting wheel 21 is installed on the side portion of the sliding strip 20 in a rotating mode, the sliding rod 19, the sliding strip 20 and the adjusting wheel 21 can be any one of the prior art, the tension moving wheel 18 is located between the adjusting wheel 21 and the fixed wheel 15, and the rotating center of the tension moving wheel 18 is located below the rotating center of the adjusting wheel 21 and the rotating center of the fixed wheel 15. This has the advantage that the tension moving wheel 18 can be made to receive tension from the lashing wire 7 for later adjustment. The slide bar 20 is connected with the rectangular block 17 through a one-way transmission mechanism; the rectangular block 17 drives the slide bar 20 to move through the one-way transmission mechanism.

When using, when the tension of iron wire changes, tension removes wheel 18 and can produce the removal, can make regulating wheel 21 remove through one-way drive mechanism, when tension is too big, regulating wheel 21 can move down, thereby make and tie up the holistic distance reduction of iron wire 7, thereby make and tie up the tension of iron wire 7 and diminish, when tension diminishes, can make regulating wheel 21 rebound, thereby make and tie up the holistic distance increase of iron wire 7, enlarge its tension, thereby guarantee the current tension of tying up iron wire 7 that changes, the later stage of being convenient for uses.

The one-way transmission mechanism comprises an L-shaped rod 22, a rack 23, a gear 27, a rotating column 26, a vertical bevel gear 24, a horizontal bevel gear 25, a worm 28, a worm wheel 29, an extrusion column 30 and a pressure column 31, the L-shaped rod 22, the rack 23, the gear 27, the rotating column 26, the vertical bevel gear 24, the horizontal bevel gear 25, the worm 28, the worm gear 29, the extrusion column 30 and the compression column 31 can be any one of the prior art, the rack 23 can be installed on the side of the L-shaped rod 22 through welding in the prior art, the L-shaped rod 22 and the side of the rectangular block 17 can be connected through welding in the prior art, the vertical bevel gear 24 and the horizontal bevel gear 25 are meshed and rotatably installed on the side of the adjusting bracket 14, the rotating column 26 is installed at the center position of the side of the vertical bevel gear 24, the gear 27 is fixedly sleeved on the rotating column 26, the gear 27 is meshed with the rack 23, and the gear 27 is located at the center position of the rack 23. This has the advantage that the rotation of the blower 27 causes the rack 23 to move back and forth, which facilitates the back and forth movement. The worm 28 is installed at the center of the side of the horizontal bevel gear 25, the worm 28 is engaged with the worm wheel 29, the worm wheel 29 is rotatably installed on the side of the adjusting bracket 14, the pressing column 30 can be installed at the eccentric position of the worm wheel 29 by welding in the prior art, and the pressing column 30 is located on the center line between the top and the bottom of the worm wheel 29. This has the advantage of allowing the squeeze column 30 to move up and down, thereby allowing the tightness to be adjusted. The compression column 31 is connected with the side part of the slide bar 20, an extrusion hole is formed in the side part of the compression column 31, one end of the extrusion column 30 extends into the extrusion hole, and one end of the bundled iron wire 7 sequentially passes through the adjusting wheel 21, the tension moving wheel 18 and the fixing wheel 15.

Further, can drive worm 28 when the position of tension removal wheel 18 changes and rotate, worm 28 rotates and drives worm wheel 29 and rotate, because worm wheel 29 can't drive worm 28 and rotate, thereby when guaranteeing that only the position of tension removal wheel 18 changes, can make regulating wheel 21 produce and remove, and regulating wheel 21 can not initiatively drive tension removal wheel 18 and remove, thereby can guarantee, when regulating wheel 21 receives different tension, can not produce and remove, can adjust regulating wheel 21 when tension removal wheel 18 experiences different pressures.

The rectangular channel has been seted up to the bottom of rectangular block 17, and the top of spring is installed on the fixed side inner wall of rectangular channel, and the top slidable mounting of L shape rectangular column 16 is in the rectangular channel, and the top of L shape rectangular column 16 is located the intermediate position of rectangular channel. Further, the L-shaped rectangular column 16 can be limited by the rectangular groove, so that the L-shaped rectangular column can only slide.

Referring to fig. 3, a stop hole is formed in a side portion of the L-shaped rectangular column 16, a stop lever 32 is installed in the stop hole, the stop lever 32 may be any one of the prior art, and the stop lever 32 contacts with a bottom of the rectangular block 17. The position of the rectangular block 17 can be blocked by the arrangement of the stop lever 32, so that the spring has certain deformation force, and the rectangular block 17 is prevented from moving when the work is started.

Referring to fig. 4, the side of the adjusting bracket 14 may be provided with a fixing post by welding in the prior art, and two opposite sides of the fixing post may be provided with two fixing rods by welding in the prior art, where the fixing post and the fixing rod may be any one of the fixing posts in the prior art, and one ends of the two fixing rods far away from the fixing post are respectively connected with the vertical bevel gear 24 and the horizontal bevel gear 25 through bearings. Through the arrangement of the bearing, the vertical bevel gear 24 and the horizontal bevel gear 25 are convenient to mount, so that the limiting and the transmission are convenient.

When the device is used, the bundled iron wires 7 respectively pass through the adjusting wheel 21, the tension moving wheel 18 and the fixed wheel 15, then the cutting mechanism 3 is started to enable the bundled iron wires 7 to generate certain tension, bundling operation is carried out, then the blocking rod 32 is moved out of the blocking hole, so that the rectangular block 17 is not limited, because the spring is in a stretching state, the generated elastic force is the same as the tension, the position of the tension moving wheel 18 cannot be changed, when the tension of the rope is changed, the elastic force is increased due to the increase of the tension, the elastic force is reduced due to the reduction of the tension, and the L-shaped rectangular column 16 slides in the rectangular block 17, so that the L-shaped rod 22 is driven to move, the L-shaped rod 22 drives the rack 23 to move, the rack 23 drives the gear 27 to rotate, the gear 27 rotates to drive the rotating column 26 to rotate, the rotating column 26 rotates to drive the vertical bevel gear 24 to rotate, the vertical bevel gear 24 rotates to drive the horizontal bevel gear 25 to rotate, horizontal bevel gear 25 rotates and drives worm 28 and rotate, thereby it rotates to drive worm wheel 29, worm wheel 29 rotates and drives extrusion post 30 and rotate, and then make the inner wall in extrusion post 30 extrusion hole make and receive the post 31 and remove, receive the post 31 and remove and drive draw runner 20 and remove, thereby make regulating wheel 21 remove, when tension is too big, regulating wheel 21 can move down, thereby make and tie up the holistic distance reduction of iron wire 7, thereby make the tension of tying up iron wire 7 diminish, when tension diminishes, can make regulating wheel 21 rebound, thereby make and tie up the holistic distance increase of iron wire 7, enlarge its tension, thereby guarantee the tension of tying up the iron wire that changes, be convenient for the later stage to use.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.