Roller structure with end face capable of automatically clamping, rotating and adjusting length and tension of metal wire

Abstract

A roller structure with the end face capable of automatically clamping, rotating and adjusting the length and tension of a metal wire comprises a roller shell, a roller front end fixing plate and a front-back position adjusting device. A mounting column is arranged in the center of the front-back movement fixing plate in a forward protruding manner; front shells of a plurality of friction sleeves are fixedly mounted on the rear wall of the front-back movement fixing plate; the outer edge of the roller front end fixing plate is inserted into the plurality of friction sleeves; a plurality of elastic devices are respectively mounted and fixed on the front-back movement fixing plate; the electromagnet mounting seat is fixedly mounted on the front side of the front-back movement fixing plate, and a mounting cylinder is arranged in the center of the electromagnet mounting seat; the mounting cylinder is sleeved outside the mounting column of the front-back movement fixing plate; the front side metal plate is mounted and fixed at the front end part of the mounting cylinder; the electromagnet is arranged outside a mounting cylinder of the electromagnet mounting base in a sleeving mode and located between the rear baffle and the front side metal plate. The position of the roller shell can be adjusted, so that the metal wire is tightened.

Description

Technical Field

[0001] This utility model relates to a wire cutting machine. Background Technology

[0002] In existing wire EDM machines, metal wire is used for cutting, and the wire is wound around a drum. Under normal operating conditions, the wire wound around the drum must be taut. In existing equipment, due to various reasons, the wire often becomes slack, requiring machine shutdown and manual adjustment, which is very time-consuming, labor-intensive, and inefficient. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to overcome the defects of the existing technology and provide a roller structure with an end face that can automatically clamp and rotate to adjust the length and tension of the metal wire. This structure can conveniently, efficiently and accurately adjust the position of the roller shell, tighten the slack metal wire, improve the quality of processing and production, increase production efficiency, and facilitate the smooth progress of production.

[0004] In order to solve the above-mentioned technical problems, the present invention proposes the following technical solution: a roller structure with an end face that can automatically clamp and rotate to adjust the length and tension of a metal wire, including a roller shell, a roller front end fixing plate and a front and rear position adjustment device;

[0005] The front end fixing plate of the drum is installed and fixed to the front end of the drum shell;

[0006] The front and rear position adjustment device includes a front and rear motion fixing plate, several friction sleeves, several elastic devices, an electromagnet mounting base, an electromagnet, and a front metal plate;

[0007] Bearing through holes are provided on the front and rear moving fixed plates, and a mounting post protrudes forward from the center of the front and rear moving fixed plates;

[0008] Each friction sleeve includes a front shell and a rear shell that are parallel to each other, and a receiving groove is provided between the front shell and the rear shell. The width of the receiving groove is greater than the thickness of the front end fixing plate of the roller.

[0009] The front shells of several friction sleeves are mounted and fixed on the rear wall of the front and rear moving fixed plates, and the outer edge of the front end fixed plate of the roller is inserted into the grooves of several friction sleeves.

[0010] Several elastic devices are respectively installed and fixed on the front and rear moving fixed plates;

[0011] Each elastic device includes a pivot block, a pivot plate, a spring, and a rolling bearing;

[0012] The pivot block is mounted and fixed on the front and rear moving fixed plates;

[0013] The pivot plate is rotatably pivoted to the pivot block at its center;

[0014] The spring and rolling bearing are located at both ends of the pivot plate, respectively. The spring is installed between the pivot plate and the front and rear moving fixed plates, and the rolling bearing is rotatably pivotally connected to the pivot plate.

[0015] The electromagnet mounting base is fixed on the front side of the front and rear moving fixed plates. The electromagnet mounting base has a mounting cylinder in the center and a rear baffle extending vertically from the rear end of the mounting cylinder.

[0016] The mounting sleeve is located outside the mounting post of the front and rear moving fixed plates;

[0017] The front metal plate is fixed to the front end of the mounting cylinder;

[0018] The electromagnet is sleeved outside the mounting cylinder of the electromagnet mounting base, and the electromagnet is located between the rear baffle and the front metal plate.

[0019] The electromagnet attracts the front metal plate and pushes the front metal plate, the electromagnet mounting base, the front and rear moving fixed plates and several friction sleeves together to move to the rear side. Neither the front shell nor the rear shell of the friction sleeve contacts the front end fixed plate of the roller.

[0020] Under the elastic force of the spring, the rolling bearing passes through the bearing through hole and through the front wall of the front end fixing plate of the rear push roller, causing the front and rear moving fixing plates and several friction sleeves to move forward. The rear shell of the friction sleeve contacts the rear wall of the front end fixing plate of the roller and generates friction.

[0021] A further limitation of the above technical solution is that a number of elastic device mounting grooves are excavated backward on the front wall surface of the front and rear moving fixed plate. The elastic device mounting groove is provided with a mounting plate and the above-mentioned bearing through hole. The elastic devices are respectively installed and fixed in the elastic device mounting grooves. The pivot block is installed and fixed on the mounting plate, and the spring is installed between the pivot plate and the mounting plate.

[0022] A further limitation of the above technical solution is that the number of friction sleeves is two, and the number of elastic devices is two.

[0023] A further limitation of the above technical solution is that the roller structure with the end face that can automatically clamp and rotate to adjust the length and tension of the metal wire also includes a roller rotation adjustment device, which includes an encoder mounting base, a first encoder, a driving gear, a driven gear, and an encoder inside the roller motor.

[0024] The encoder mounting bracket is fixed to the front side of the front metal plate;

[0025] The first encoder is mounted and fixed on an encoder mounting base, which includes a rotating shaft;

[0026] The drive gear is fixedly connected to the shaft of the first encoder;

[0027] The driven gear is mounted and fixed at the front end of the mounting post of the front and rear moving fixed plates, and the driven gear is threadedly connected to the driving gear.

[0028] The encoder inside the drum motor is installed and fixed inside the drum housing.

[0029] A further limitation of the above technical solution is that the first encoder is a hollow encoder or a regular encoder that rotates in conjunction with gears or belts.

[0030] A further limitation of the above technical solution is that the roller structure with an end face that can automatically clamp and rotate to adjust the length and tension of the metal wire also includes a metal wire clamping device, which includes a power equipment mounting base, a power equipment, a connecting block, a pivot rod, a clamping plate mounting block, a gasket, and a clamping plate.

[0031] The power equipment is installed and fixed on the power equipment mounting base;

[0032] The connecting block is connected to the power equipment. After the power equipment is started, it pushes the connecting block to move in the left and right directions.

[0033] The top of the pivot rod is rotatably pivoted to the connecting block, and the bottom is rotatably pivoted to the power equipment mounting base;

[0034] The clip mounting block is installed and fixed at the bottom of the front and rear moving fixing plates;

[0035] The gasket is installed and fixed at the bottom of the friction sleeve;

[0036] The middle part of the clamp is rotatably pivoted at the bottom of the clamp mounting block. A spring is provided between the front part of the clamp and the clamp mounting block. Under the elastic force of the spring, the front part of the clamp moves downward and the rear part moves upward and clamps with the pad.

[0037] A further limitation of the above technical solution is that the power equipment is a cylinder or an electric motor.

[0038] A further limitation of the above technical solution is that the roller structure, which can automatically clamp and rotate to adjust the length and tension of the metal wire, also includes several sliders, linear slide rails, linear racks, rotary motors, rotary gears, and fixed back plates.

[0039] The linear guide rail is installed and fixed along the front-to-back direction;

[0040] The drum housing is mounted and fixed to the fixed back plate;

[0041] Several sliders are mounted and fixed on a fixed back plate, and several sliders are mounted on a linear slide rail and can slide along the linear slide rail in the front-back direction;

[0042] The linear rack is installed and fixed to the fixed back plate along the front-to-back direction;

[0043] The rotary gear is connected to the shaft of the rotary motor, and the rotary gear and the linear rack are connected by a thread;

[0044] When the rotary motor is started, its shaft rotates, which drives the rotary gear to rotate, causing the linear rack to move in the forward and backward direction.

[0045] Compared with the prior art, the present invention has the following beneficial effects:

[0046] 1. This utility model, through the cooperation of a front and rear position adjustment device and a roller rotation adjustment device, can conveniently, efficiently and accurately adjust the position of the roller shell, tighten the slack metal wire, improve processing quality and increase production efficiency.

[0047] 2. The metal wire clamping device of this utility model can clamp metal wires conveniently and accurately, facilitating smooth production. Attached Figure Description

[0048] Figure 1 This is an exploded view of the roller structure of this utility model, which can automatically clamp and rotate to adjust the length and tension of the metal wire.

[0049] Figure 2 This is an assembly diagram of the roller structure of the present invention, which can automatically clamp and rotate to adjust the length and tension of the metal wire.

[0050] Figure 3 This is an assembly diagram (showing some components) of the roller structure of the present invention, which can automatically clamp and rotate at the end face to adjust the length and tension of the metal wire.

[0051] Figure 4 This is a perspective view of the roller structure of this utility model, which has an end face that can automatically clamp and rotate to adjust the length and tension of the metal wire in the installed state.

[0052] Figure 5 This is another perspective view of the roller structure of this utility model, which can automatically clamp and rotate to adjust the length and tension of the metal wire at the end face, in its installed state.

[0053] Figure 6 This is an exploded view (showing some components) of the roller structure of this utility model, which can automatically clamp and rotate at the end face to adjust the length and tension of the metal wire in the installed state. Detailed Implementation

[0054] like Figure 1 As shown in Figure 6, this utility model proposes a roller structure with an end face that can automatically clamp and rotate to adjust the length and tension of the metal wire. It includes a roller shell 1, a roller front end fixing plate 3, a front and rear position adjustment device (not labeled), a roller rotation adjustment device 7, and a metal wire clamping device 9.

[0055] A motor (not shown) capable of driving the roller housing 1 to rotate is installed and fixed inside the roller housing 1.

[0056] The front end fixing plate 3 of the roller is installed and fixed at the front end of the roller shell 1.

[0057] When the motor is started, the front end fixing plate 3 of the drum rotates synchronously with the drum shell 1.

[0058] The front and rear position adjustment device (unnumbered) includes a front and rear motion fixing plate 51, two friction sleeves 53, two elastic devices 55, an electromagnet mounting base 57, an electromagnet 59, and a front metal plate 61.

[0059] Two elastic device mounting grooves 511 are excavated backward on the front wall of the front and rear moving fixing plate 51. The elastic device mounting grooves 511 are provided with mounting plates 513 and bearing through holes 515.

[0060] A mounting post 517 protrudes forward from the center of the front and rear movement fixing plate 51.

[0061] Each friction sleeve 53 includes a front shell 531 and a rear shell 533 that are parallel to each other, and a receiving groove 535 is provided between the front shell 531 and the rear shell 533. The width of the receiving groove 535 is greater than the thickness of the front end fixing plate 3 of the roller.

[0062] The front shells 531 of the two friction sleeves 53 are mounted and fixed on the rear wall of the front and rear moving fixed plates 51. The outer edge of the front end fixed plate 3 of the roller is inserted into the receiving grooves 535 of the two friction sleeves 53. The front end fixed plate 3 of the roller is not fixedly connected to the two friction sleeves 53.

[0063] Two elastic devices 55 are respectively installed and fixed in two elastic device mounting slots 511.

[0064] Each elastic device 55 includes a pivot block 551, a pivot plate 553, a spring 555, and a rolling bearing 557.

[0065] The pivot block 551 is installed and fixed on the mounting plate 513 in the elastic device mounting groove 511 of the front and rear moving fixed plate 51.

[0066] The pivot plate 553 is pivotally connected to the pivot block 551 at its center.

[0067] Spring 555 is installed between the upper part of pivot plate 553 and mounting plate 513.

[0068] The rolling bearing 557 is rotatably pivotally connected to the bottom of the pivot plate 553.

[0069] The electromagnet mounting base 57 is mounted and fixed on the front side of the front and rear moving fixed plate 51.

[0070] The electromagnet mounting base 57 has a mounting cylinder 571 in the center and a rear baffle 573 extending vertically from the rear end of the mounting cylinder 571.

[0071] Mounting cylinder 571 is fitted onto the mounting post 517 of the front and rear moving fixing plate 51.

[0072] The front metal plate 61 is installed and fixed to the front end of the mounting cylinder 571.

[0073] The electromagnet 59 is sleeved outside the mounting sleeve 571 of the electromagnet mounting base 57 and is not fixedly connected to the electromagnet mounting base 57. The electromagnet 59 is located between the rear baffle 573 and the front metal plate 61.

[0074] When the electromagnet 59 attracts the front metal plate 61, it pushes the front metal plate 61, the electromagnet mounting base 57, the front and rear moving fixing plate 51 and the two friction sleeves 53 to move to the rear. The front shell 531 and the rear shell 533 of the two friction sleeves 53 do not contact the front end fixing plate 3 of the drum. Therefore, there is no friction between the two friction sleeves 53 and the front end fixing plate 3 of the drum. The two friction sleeves 53 and the front and rear moving fixing plate 51 will not rotate with the drum outer shell 1 and the front end fixing plate 3 of the drum.

[0075] When the electromagnet 59 does not attract the front metal plate 61, under the elastic force of the spring 555, the pivot plate 553 moves away from the mounting plate 513, while the rolling bearing 557 moves towards the mounting plate 513 and passes through the bearing through hole 515 through the front wall of the rear push roller front end fixing plate 3, causing the two friction sleeves 53 to move forward. The rear shells 533 of the two friction sleeves 53 contact the rear wall of the roller front end fixing plate 3 and generate friction. With the help of friction, the two friction sleeves 53 and the front and rear moving fixing plate 51 rotate synchronously with the roller outer shell 1 and the roller front end fixing plate 3.

[0076] The drum rotation adjustment device 7 includes an encoder mounting base 71, a first encoder 73, a drive gear 75, a driven gear 77, and an internal encoder of the drum motor (not shown).

[0077] The encoder mounting base 71 is mounted and fixed on the front side of the front metal plate 61.

[0078] The first encoder 73 is mounted and fixed on the encoder mounting base 71, which includes a rotating shaft 732.

[0079] The first encoder 73 is a hollow encoder or a regular encoder that rotates in conjunction with gears or belts.

[0080] The drive gear 75 is fixedly connected to the rotating shaft 732 of the first encoder 73.

[0081] Driven gear 77 is mounted and fixed at the front end of mounting post 517 of front and rear moving fixed plate 51. Driven gear 77 is threadedly connected to driving gear 75.

[0082] The encoder (not shown) inside the drum motor is installed and fixed inside the drum housing 1.

[0083] When the metal wire 1000 wound on the drum housing 1 becomes loose, the drum housing 1 needs to be adjusted to tighten the metal wire 1000. When the first encoder 73 receives a signal from the encoder inside the drum motor (not shown), it starts. The rotating shaft 732 rotates, driving the drive gear 75 to rotate. The drive gear 75 drives the driven gear 77 to rotate, thereby causing the front and rear motion fixing plates 51 and the two friction sleeves 53 to rotate synchronously. As mentioned earlier, with the help of the elastic device 55, the front and rear motion fixing plates 51, the two friction sleeves 53, the drum front fixing plate 3, and the drum housing 1 rotate together, adjusting the position of the drum housing 1 to tighten the loose metal wire 1000.

[0084] The wire clamping device 9 includes a power equipment mounting base 91, a power equipment 93, a connecting block 95, a pivot rod 97, a clamp mounting block 99, a gasket 101, and a clamp 103.

[0085] The power equipment mounting base 91 is mounted and fixed on the bottom surface of the encoder mounting base 71.

[0086] The power unit 93 is mounted and fixed on the power unit mounting base 91. The power unit 93 is a cylinder or an electric motor.

[0087] Connecting block 95 is connected to power device 93. After power device 93 is started, it pushes connecting block 95 to move in the left and right direction.

[0088] The top of the pivot rod 97 is rotatably pivoted to the connecting block 95, and the bottom is rotatably pivoted to the power equipment mounting base 91.

[0089] The clip mounting block 99 is installed and fixed at the bottom of the front and rear moving fixing plate 51.

[0090] Gasket 101 is installed and fixed at the bottom of friction sleeve 53.

[0091] The middle part of the clip 103 is rotatably pivotally mounted on the bottom of the clip mounting block 99. A spring (not shown) is provided between the front part of the clip 103 and the clip mounting block 99. Under the action of the spring, the front part of the clip 103 moves downward and the rear part moves upward and clamps with the washer 101. The metal wire 1000 is clamped between the washer 101 and the clip 103.

[0092] When it is necessary to release the metal wire 1000, start the power device 93, pull the connecting block 95 to move to the left, the top of the pivot rod 97 moves to the left and the bottom moves upward, pushing against the front of the clamp 103, and the rear of the clamp 103 moves downward, so that it no longer clamps the metal wire 1000.

[0093] like Figures 4 to 6 As shown, the roller structure of this utility model, which can automatically clamp and rotate to adjust the length and tension of the metal wire, also includes several sliders 111, linear slide rails 113, linear racks 115, rotary motors 117, rotary gears 119, and fixed back plates 121.

[0094] The linear guide rail 113 is installed and fixed on the right end of the lower wire frame 21 along the front-to-back direction.

[0095] The roller housing 1 is mounted and fixed on the fixed back plate 121.

[0096] Several sliders 111 are mounted and fixed on the fixed back plate 121. Several sliders 111 are mounted on the linear slide rail 113 and can slide along the linear slide rail 113 in the front-back direction.

[0097] The linear rack 115 is mounted and fixed on the fixed back plate 121 along the front-to-back direction.

[0098] The rotary motor 117 is mounted and fixed on the lower wire frame 21, and the rotary gear 119 is connected to the rotating shaft (unlabeled) of the rotary motor 117. The rotary gear 119 and the linear rack 115 are threaded together.

[0099] When the rotary motor 117 is started, its shaft rotates, which drives the rotary gear 119 to rotate, causing the linear rack 115, the fixed back plate 121 and the drum shell 1 to move in the front-back direction, thereby causing the drum structure of this utility model to slide in the front-back direction on the linear slide rail 113. The rotary gear 119 and the linear rack 115 can ensure the effect of threading on the drum shell 1.

[0100] Above the lower wire frame 21 is an upper wire frame 23. The right end of the upper wire frame 23 is equipped with a wire guide rod 231 and a torque sensor 233. When the torque sensor 233 senses that the metal wire 1000 is too loose, the torque sensor 233 transmits a signal to the front and rear position adjustment device (unlabeled), the roller rotation adjustment device 7 and the metal wire clamping device 9 to make corresponding adjustments.

[0101] The present invention has the following beneficial effects: The present invention, through the cooperation of the front and rear position adjustment device (not labeled) and the roller rotation adjustment device 7, can conveniently, efficiently and accurately adjust the position of the roller shell 1, so that the loose metal wire 1000 is tightened, thereby improving the processing quality and production efficiency.

[0102] The metal wire clamping device 9 of this utility model can conveniently and accurately clamp the metal wire 1000, facilitating the smooth progress of production.

Claims

1. A roller structure with an end face capable of automatically clamping and rotating to adjust the length and tension of a metal wire, characterized in that, It includes a drum housing (1), a drum front end fixing plate (3), and a front and rear position adjustment device; The front end fixing plate (3) of the roller is installed and fixed at the front end of the roller shell (1); The front and rear position adjustment device includes a front and rear motion fixing plate (51), several friction sleeves (53), several elastic devices (55), an electromagnet mounting base (57), an electromagnet (59), and a front metal plate (61). A bearing through hole (515) is provided on the front and rear moving fixing plate (51), and a mounting post (517) protrudes forward from the center of the front and rear moving fixing plate (51); Each friction sleeve (53) includes a front shell (531) and a rear shell (533) that are parallel to each other, and a receiving groove (535) is provided between the front shell (531) and the rear shell (533). The width of the receiving groove (535) is greater than the thickness of the front end fixing plate (3) of the roller. The front shell (531) of several friction sleeves (53) is installed and fixed on the rear wall of the front and rear motion fixing plate (51), and the outer edge of the front end fixing plate (3) of the roller is inserted into the groove (535) of several friction sleeves (53); Several elastic devices (55) are respectively installed and fixed on the front and rear motion fixing plates (51); Each elastic device (55) includes a pivot block (551), a pivot plate (553), a spring (555), and a rolling bearing (557). The pivot block (551) is installed and fixed on the front and rear motion fixing plates (51); The pivot plate (553) is rotatably pivotally connected to the pivot block (551) at its center; Spring (555) and rolling bearing (557) are located at both ends of pivot plate (553). Spring (555) is installed between pivot plate (553) and front and rear moving fixed plate (51). Rolling bearing (557) is rotatably pivotally connected to pivot plate (553). The electromagnet mounting base (57) is mounted and fixed on the front side of the front and rear moving fixing plate (51). The electromagnet mounting base (57) has a mounting cylinder (571) in the center and a rear baffle (573) extending vertically from the rear end of the mounting cylinder (571). The mounting sleeve (571) is fitted onto the mounting post (517) of the front and rear moving fixed plates (51); The front metal plate (61) is fixed to the front end of the mounting cylinder (571); The electromagnet (59) is sleeved outside the mounting sleeve (571) of the electromagnet mounting base (57), and the electromagnet (59) is located between the rear baffle (573) and the front metal plate (61). The electromagnet (59) attracts the front metal plate (61) and pushes the front metal plate (61), the electromagnet mounting base (57), the front and rear moving fixing plate (51) and several friction sleeves (53) to move to the rear side together. The front shell (531) and the rear shell (533) of the friction sleeve (53) do not contact the front end fixing plate (3) of the roller. Under the elastic force of the spring (555), the rolling bearing (557) passes through the bearing through hole (515) through the front wall of the front end fixing plate (3) of the rear push roller, causing the front and rear moving fixing plate (51) and several friction sleeves (53) to move forward. The rear shell (533) of the friction sleeve (53) contacts the rear wall of the front end fixing plate (3) of the roller and generates friction.

2. The roller structure with automatically clamping and rotating end face adjustable wire length and tension as described in claim 1, characterized in that, Several elastic device mounting grooves (511) are excavated backward on the front wall of the front and rear moving fixing plate (51). The elastic device mounting groove (511) is provided with a mounting plate (513) and the above-mentioned bearing through hole (515). Several elastic devices (55) are respectively installed and fixed in several elastic device mounting grooves (511). The pivot block (551) is installed and fixed on the mounting plate (513). The spring (555) is installed between the pivot plate (553) and the mounting plate (513).

3. The roller structure with automatically clamping and rotating end face adjustable wire length and tension as described in claim 1, characterized in that, The number of friction sleeves (53) is two, and the number of elastic devices (55) is two.

4. The roller structure with automatically clamping and rotating end face adjustable wire length and tension as described in claim 1, characterized in that, The roller structure that can automatically clamp and rotate to adjust the length and tension of the metal wire also includes a roller rotation adjustment device (7), which includes an encoder mounting base (71), a first encoder (73), a drive gear (75), a driven gear (77), and an encoder inside the roller motor. The encoder mounting base (71) is mounted and fixed on the front side of the front metal plate (61); The first encoder (73) is mounted and fixed on the encoder mounting base (71), which includes a rotating shaft (732). The drive gear (75) is fixedly connected to the shaft (732) of the first encoder (73); The driven gear (77) is mounted and fixed at the front end of the mounting post (517) of the front and rear moving fixed plates (51), and the driven gear (77) is threadedly connected to the driving gear (75). The encoder inside the drum motor is installed and fixed inside the drum housing (1).

5. The roller structure with automatically clamping and rotating end face adjustable wire length and tension as described in claim 4, characterized in that, The first encoder (73) is a hollow encoder or a regular encoder that rotates with gears or belts.

6. The roller structure with automatically clamping and rotating end face adjustable wire length and tension according to claim 1, characterized in that, The roller structure with automatic clamping and rotation adjustment of the wire length and tension also includes a wire clamping device (9), which includes a power equipment mounting base (91), a power equipment (93), a connecting block (95), a pivot rod (97), a clamp mounting block (99), a gasket (101), and a clamp (103). The power equipment (93) is installed and fixed on the power equipment mounting base (91); The connecting block (95) is connected to the power equipment (93). After the power equipment (93) is started, it pushes the connecting block (95) to move in the left and right directions. The top of the pivot rod (97) is rotatably pivoted to the connecting block (95), and the bottom is rotatably pivoted to the power equipment mounting base (91); The clip mounting block (99) is installed and fixed to the bottom of the front and rear moving fixing plate (51); The gasket (101) is installed and fixed to the bottom of the friction sleeve (53); The middle part of the clip (103) is rotatably pivoted at the bottom of the clip mounting block (99). A spring is provided between the front part of the clip (103) and the clip mounting block (99). Under the action of the spring force, the front part of the clip (103) moves downward and the rear part moves upward and clamps with the pad (101).

7. The roller structure with automatically clamping and rotating end face adjustable wire length and tension as described in claim 6, characterized in that, The power equipment (93) is a cylinder or an electric motor.

8. The roller structure with automatically clamping and rotating end face adjustable wire length and tension according to claim 1, characterized in that, The roller structure, which can automatically clamp and rotate to adjust the length and tension of the metal wire, also includes several sliders (111), linear slide rails (113), linear racks (115), rotary motors (117), rotary gears (119), and fixed back plates (121). The linear guide rail (113) is installed and fixed along the front-to-back direction; The roller shell (1) is mounted and fixed on the fixed back plate (121); Several sliders (111) are mounted and fixed on a fixed back plate (121), and several sliders (111) are mounted on a linear slide rail (113) and can slide along the front and back direction on the linear slide rail (113); A straight rack (115) is mounted and fixed on a fixed back plate (121) along the front-to-back direction; A rotary gear (119) is connected to the shaft of a rotary motor (117), and the rotary gear (119) and a linear rack (115) are threaded together. Start the rotary motor (117), whose shaft rotates and drives the rotary gear (119) to rotate, which in turn drives the linear rack (115), the fixed back plate (121) and the drum shell (1) to move in the front and back direction.

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