Adjusting device for transmission tension of grid unreeling machine

Abstract

The utility model discloses an adjusting device for transmission tension of a grid unreeling machine. The adjusting device comprises a machine frame, the pressure transmission assembly comprises a pressure transmission roller, the two ends of the pressure transmission roller are connected with lifting roller seats, and the lifting roller seats slide on the rack in the vertical direction; the detection assembly is used for detecting the transmission tension of the coiled material; the pressure applying assembly comprises a swing arm and a pressure applying roller, the swing arm rotates on the rack, the pressure applying roller rotates on the swing arm around the axis of the pressure applying roller, and the roller surface of the pressure applying roller is attached to the upper portion of the roller surface side of the pressure transmitting roller; and the driving assembly drives the swing arm to rotate so as to adjust the pressure of the pressure applying roller on the pressure transmitting roller. According to the adjusting device for the transmission tension of the grid unreeling machine, pressure is applied to the pressure transmission roller downwards from the side upper direction through the pressure applying roller, the driving assembly is used for driving the swing arm to rotate, and the pressure of the pressure applying roller to the pressure transmission roller is adjusted, so that the coiled material transmission tension is rapidly adjusted through the pressure transmission roller, a balance weight does not need to be prepared and replaced, operation is convenient, and adjustment is timely; and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of grid production, in particular to a device for adjusting the transmission tension of a grid unwinder. Background Art

[0002] The grid unwinder is a processing device used in production areas such as battery grid production lines and metal coil processing lines. It is mainly used to automatically unwind rolled raw materials (usually lead strips) to subsequent processing equipment such as punching devices for processing. It can provide raw materials stably and continuously to ensure the smooth operation of the production line.

[0003] In order to ensure that the grid unwinder has appropriate transmission tension for the coil when unwinding, in the prior art, the Chinese utility model patent with announcement number CN220264611U discloses a gravity-type grid unwinding tensioning device. During unwinding, the pressure roller presses the coil to increase the transmission tension. Due to the effect of the counterweight, the pressure of the pressure roller on the coil is reduced. Under the tension of the coil, the pressure roller moves upward, playing a role of flexible tensioning; the counterweight is hung on the lifting ear A through a hook to ensure that the entire counterweight system is easy to disassemble and assemble, and facilitates subsequent inspection and maintenance.

[0004] In the above-mentioned gravity-type grid unwinding and tensioning device, the transmission tension of the pressure roller to the coil is adjusted mainly by the disassembly and replacement of the counterweight. When the transmission tension of the coil needs to be changed, the counterweight needs to be replaced, which is inconvenient to disassemble and assemble, and difficult to adjust quickly. Moreover, in the actual operation process, counterweights of different weights need to be prepared, which increases the adjustment cost. In addition, due to the fixed structure and weight of the counterweight, the adjustment effect is limited, and the pressure roller can only adjust the tension of the coil in a small range. The adjustable range is small and the adjustment effect is poor.

[0005] Therefore, it is necessary to improve the adjustment device for the transmission tension of the grid unwinder in the prior art. Utility Model Content

[0006] The purpose of the utility model is to overcome the defects in the prior art and provide a device for adjusting the transmission tension of a grid unwinder, which is convenient, fast and instant in operation, reduces adjustment costs, expands the adjustment range and improves the adjustment effect.

[0007] In order to achieve the above technical effects, the technical solution of the utility model is: a device for adjusting the transmission tension of a grid unwinder, comprising:

[0008] frame;

[0009] A pressure transmission assembly, the pressure transmission assembly comprising a pressure transmission roller with a horizontal axis and rotating around its own axis, with lifting roller seats connected to both ends of the pressure transmission roller, and the lifting roller seats sliding on the frame in a vertical direction;

[0010] A detection component, the detection component is used to detect the transmission tension of the coiled material when it passes through the bottom of the pressure transfer roller;

[0011] A pressure assembly, the pressure assembly comprising a swing arm and a pressure roller, the swing arm rotating on the frame with its rotation axis parallel to the axial direction of the pressure roller and the axial direction of the pressure transfer roller, the pressure roller rotating around its own axis on the swing arm with its roller surface in contact with the upper side of the roller surface of the pressure transfer roller;

[0012] A driving assembly is provided on the frame, and the driving assembly drives the swing arm to rotate so as to adjust the pressure of the pressure roller on the pressure transfer roller.

[0013] Preferably, in order to facilitate uniform force on both sides of the pressure transfer roller, two pressure components are provided, which are arranged on both sides of the vertical plane where the axis of the pressure transfer roller is located.

[0014] Preferably, in order to further ensure that the forces on both sides of the pressure transfer roller are uniform, the two pressure components are symmetrically distributed about the vertical plane where the axis of the pressure transfer roller is located.

[0015] Preferably, in order to realize the rotation of the swing arm, thereby adjusting the pressure applied by the pressure roller to the pressure transfer roller, and further realizing the adjustment of the transmission tension of the roll by the pressure transfer roller, the pressure assembly also includes a sliding member arranged at the top end of the swing arm, and the sliding member moves in a horizontal direction perpendicular to the axial direction of the pressure transfer roller. The driving assembly includes a lifting unit and a transmission rod. The lifting unit is arranged on the frame, and the output end of the lifting unit is connected to the sliding member through the transmission rod.

[0016] Preferably, in order to achieve stable rotation of the swing arm, in the pressure assembly, the swing arm is arranged at both ends of the pressure roller and is connected through a horizontal axis axially parallel to the axis of the pressure roller, the sliding member includes a sliding sleeve, a ring and a connecting seat that are fixedly connected, the frame includes a sliding shaft extending in a horizontal direction perpendicular to the axis of the pressure roller, the sliding sleeve is slidably sleeved outside the sliding shaft, the ring sealing sleeve is arranged outside the horizontal axis, the transmission rod is rotatably connected to the connecting seat and the relative rotation axis is parallel to the axis of the pressure roller.

[0017] Preferably, in order to achieve precise adjustment of the transmission tension, a water supply component is also included, and the pressure transfer roller and / or the pressure roller are hollow rollers. The water supply component is used to pass an external water source into the hollow roller and discharge the water in the hollow roller to the outside to adjust the transmission tension of the coil when it passes through the pressure transfer roller.

[0018] Preferably, in order to further achieve precise adjustment of the coil transmission tension and expand the adjustment range, the pressure transfer roller and the pressure roller are both hollow rollers.

[0019] Preferably, in order to increase the weight of the hollow roller, the water supply assembly includes a water pump, a first water pipe connected between the water pump and the pressure transfer roller, a second water pipe connected between the water pump and the pressure roller, a first switch valve arranged on the first water pipe, and a second switch valve arranged on the second water pipe.

[0020] Preferably, in order to facilitate the position adjustment of the hollow roller, the water delivery assembly further includes a corrugated hose, and the corrugated hose is connected between the first water pipe and the pressure transfer roller and between the second water pipe and the pressure roller.

[0021] Preferably, in order to conveniently control the adjustment of water flow between the inner cavity of the hollow roller and the outside world through a water pump, a suction pipe is sealed through the end of the hollow roller coaxially, one end of the suction pipe is fixedly connected to the corrugated hose, and the other end extends downward to cooperate with the bottom gap of the inner wall of the hollow roller.

[0022] To sum up, compared with the prior art, the transmission tension adjustment device for the grid unwinder of the utility model applies pressure to the pressure transfer roller from the upper side downward by a pressure roller, and uses a driving assembly to drive the swing arm to rotate to adjust the pressure of the pressure roller on the pressure transfer roller, thereby realizing rapid adjustment of the transmission tension of the coil by the pressure transfer roller, without the need to prepare and replace counterweights, convenient operation, timely adjustment, and reduced costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural diagram of the utility model board;

[0024] Figure 2 yes Figure 1 Explosion diagram of

[0025] Figure 3 yes Figure 2 A magnified view of part A;

[0026] Figure 4 yes Figure 1 Side view of

[0027] Figure 5 It is a structural diagram of the water delivery component of the utility model;

[0028] Figure 6 This is a structural diagram of the pressure transmission component of the utility model;

[0029] Figure 7 yes Figure 6 Explosion diagram of

[0030] Figure 8 It is a structural diagram of the pressure-applying component of the utility model;

[0031] Figure 9 yes Figure 8 Explosion diagram of

[0032] In the figure: 1. Frame; 11. Vertical plate; 111. Slide; 12. Top plate; 13. Bracket; 14. Sliding shaft; 2. Pumping pipe; 3. Pressure transmission assembly; 31. Pressure transmission roller; 311. Pressure transmission cylinder; 312. Pressure transmission cover; 313. Pressure transmission convex tube; 32. Lifting roller seat; 33. Pressure transmission bearing; 4. Detection assembly; 41. Detection frame; 42. Tension sensor; 5. Pressure assembly; 51. Swing arm; 511. Connecting ring; 52. Pressure roller; 521. Pressure cylinder; 52 2. Pressure cover; 523. Pressure convex tube; 53. Horizontal axis; 531. Positioning convex ring; 54. Sliding part; 541. Sliding sleeve; 542. Ring; 543. Connecting seat; 544. Connecting strip; 55. Side pressure bearing; 6. Driving assembly; 61. Lifting unit; 62. Transmission rod; 7. Water delivery assembly; 71. Water pump; 72. Water delivery shell; 73. First water pipe; 731. First switch valve; 74. Second water pipe; 741. Second switch valve; 75. Corrugated hose. DETAILED DESCRIPTION

[0033] The following embodiments are used to further describe the specific embodiments of the present invention in conjunction with the accompanying drawings and examples. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.

[0034] like Figures 1-9 As shown, the utility model is a device for adjusting the transmission tension of a grid unwinder, comprising:

[0035] Rack 1;

[0036] The pressure transmission assembly 3 includes a pressure transmission roller 31 with a horizontal axis and rotating around its own axis. Both ends of the pressure transmission roller 31 are connected to a lifting roller seat 32, and the lifting roller seat 32 slides on the frame 1 along the vertical direction;

[0037] Detection component 4, which is used to detect the transmission tension of the coiled material when it passes through the bottom of the pressure roller 31;

[0038] The pressure assembly 5 includes a swing arm 51 and a pressure roller 52. The swing arm 51 rotates on the frame 1, and the rotation axis is parallel to the axial direction of the pressure roller 52 and the axial direction of the pressure transfer roller 31. The pressure roller 52 rotates around its own axis on the swing arm 51, and the roller surface is in contact with the upper roller surface side of the pressure transfer roller 31.

[0039] The driving assembly 6 is arranged on the frame 1 , and the driving assembly 6 drives the swing arm 51 to rotate to adjust the pressure of the pressure roller 52 on the pressure transfer roller 31 .

[0040] The transmission tension adjustment device is usually arranged on the discharge side of the grid unwinder. When the grid unwinder is unwinding, the coil passes through the bottom of the pressure roller 31 and abuts against the bottom of the pressure roller 31. Due to the transmission tension of the coil acting on the pressure roller 31, the lifting roller seats 32 at both ends of the pressure roller 31 move upward in the vertical direction, thereby causing the pressure roller 31 to act on the transmitted coil. At the same time, on the upper side of the pressure roller 31, the roller surface of the pressure roller 52 fits with the roller surface of the pressure roller 31, so that the pressure roller 31 applies pressure to the pressure roller 31. The pressure is applied in the vertical direction. The component force in the vertical direction is transmitted to the coil through the pressure transfer roller 31, and cooperates with the gravity of the pressure transfer roller 31 to apply pressure to the coil together. The detection component 4 is used to detect the transmission tension of the coil when it passes through the bottom of the pressure transfer roller 31. When it is necessary to adjust the transmission tension of the coil, the driving component 6 acts on the swing arm 51 to drive the swing arm 51 to rotate, thereby changing the orientation of the swing arm 51, so that the pressure of the pressure roller 52 on the pressure transfer roller 31 changes, thereby changing the pressure transmitted to the coil through the pressure transfer roller 31, thereby realizing the adjustment of the coil transmission tension.

[0041] Specifically, in the tension adjustment device, the pressure roller 52 rotates around its own axis at the bottom of the swing arm 51, and the roller surface of the pressure roller 52 is always in contact with the roller surface of the pressure transfer roller 31. The length direction of the swing arm 51 is inclined, and the drive component 6 drives the swing arm 51 to rotate. When the length direction of the swing arm 51 tends to the vertical direction, the pressure of the pressure roller 52 on the pressure transfer roller 31 decreases, thereby reducing the pressure on the roll. Conversely, when the length direction of the swing arm 51 tends to the horizontal direction, the pressure of the pressure roller 52 on the pressure transfer roller 31 increases, thereby increasing the pressure on the roll.

[0042] Therefore, the device can drive the swing arm 51 to rotate through the driving component 6, change the pressure of the pressure roller 52 on the pressure transfer roller 31, and then realize real-time and rapid adjustment of the coil transmission tension through the pressure transfer roller 31. It is easy to operate, does not require the preparation and replacement of counterweights, reduces the adjustment cost, and can realize rapid and flexible adjustment of the coil transmission tension.

[0043] A further improvement is that two pressure assemblies 5 are provided, which are arranged on both sides of the vertical plane where the axis of the pressure transfer roller 31 is located; further, the two pressure assemblies 5 are symmetrically distributed about the vertical plane where the axis of the pressure transfer roller 31 is located.

[0044] After adopting the above design, by using two symmetrically distributed pressure components 5, the two pressure rollers 52 can apply symmetrical pressure to the pressure transfer roller 31 at the same time, thereby ensuring that the pressure transfer roller 31 applies stable downward pressure on the coil, and makes the force on both sides of the pressure transfer roller 31 uniform and consistent, ensuring the stability of the structure, avoiding local force in a single direction, resulting in unstable structure of the tension adjustment device, and by setting two pressure rollers 52, the adjustment range of the coil pressure can be further expanded, thereby expanding the adjustment range of the coil transmission tension.

[0045] A further improvement is that the pressure assembly 5 also includes a sliding member 54 arranged at the top of the swing arm 51, and the sliding member 54 moves in a horizontal direction perpendicular to the axial direction of the pressure transfer roller 31. The driving assembly 6 includes a lifting unit 61 and a transmission rod 62. The lifting unit 61 is arranged on the frame 1, and the output end of the lifting unit 61 is connected to the sliding member 54 through the transmission rod 62.

[0046] After adopting the above structure, the lifting unit 61 in the drive assembly 6 is started and acts on the transmission rod 62. The transmission rod 62 is connected to the sliding member 54, driving the sliding member 54 to move, thereby changing the orientation of the swing arm 51, and then changing the pressure of the pressure roller 52 on the pressure transfer roller 31, thereby realizing the adjustment of the tension of the roll.

[0047] A further improvement is that in the pressure assembly 5, the swing arms 51 are arranged at both ends of the pressure roller 52 and are connected through a horizontal axis 53 axially parallel to the axis of the pressure roller 52. The sliding member 54 includes a sliding sleeve 541, a ring 542 and a connecting seat 543 that are fixedly connected to each other. The frame 1 includes a sliding shaft 14 extending in a horizontal direction perpendicular to the axis of the pressure roller 52. The sliding sleeve 541 is slidably sleeved outside the sliding shaft 14, the ring 542 is sealingly sleeved outside the horizontal axis 53, and the transmission rod 62 is rotatably connected to the connecting seat 543 and the relative rotation axis is parallel to the axis of the pressure roller 52.

[0048] Specifically, in the present invention, the frame 1 includes two vertical plates 11 distributed along the axial direction parallel to the pressure transfer roller 31, and the top ends of the two vertical plates 11 are fixedly mounted with a top plate 12. The vertical plates 11 are provided with a through-hole-shaped slide 111 extending in the vertical direction. Both ends of the pressure transfer roller 31 are connected to the lifting roller seat 32 through a pressure transfer bearing 33. The inner ring of the pressure transfer bearing 33 is fixedly connected to the pressure transfer roller 31 coaxially, and the circumferential outer edge of the outer ring is fixedly connected to the lifting roller seat 32. The lifting roller seat 32 slides on the slide 111, which facilitates the pressure transfer roller 31 to rotate around its own axis while realizing the change of its own height position through the sliding cooperation of the lifting roller seat 32 and the slide 111.

[0049] Two brackets 13 distributed along the axial direction of the pressure transfer roller 31 are fixed above the top plate 12. The bracket 13 is a U-shaped bracket with an upward opening and a bottom fixed to the top plate 12. The two ends of the bracket 13 are fixedly connected by a sliding shaft 14. The axial direction of the sliding shaft 14 is horizontal and perpendicular to the axial direction of the pressure transfer roller 31.

[0050] In the pressure assembly 5, a swing arm 51 is provided at both ends of the pressure roller 52. The swing arm 51 is tilted and its bottom end is integrally connected with a mounting ring 511. A side pressure bearing 55 is provided on the inner side of the mounting ring 511. The inner ring of the side pressure bearing 55 is fixedly connected to the pressure roller 52, and the circumferential outer edge of the outer ring is fixedly connected to the circumferential inner wall of the mounting ring 511. A through hole with an inner diameter consistent with the outer diameter of the horizontal axis 53 is provided at the top of the swing arm 51. The horizontal axis 53 is sealed and penetrated inside the through hole. Positioning blocks are provided at both ends of the horizontal axis 53, and the positioning blocks fit in with the swing arm 51. , to prevent the horizontal shaft 53 and the two swing arms 51 from having relative axial movement; the horizontal shaft 53 is also provided with three positioning protrusions 531 distributed along its axial direction, and a sliding member 54 is provided between two adjacent positioning protrusions 531. The sliding member 54 includes a collar 542, and the collar 542 is sealed and sleeved outside the horizontal shaft 53, and its two ends are fitted between the two adjacent positioning protrusions 531. The bottom ends of the collars 542 are fixed with sliding sleeves 541, and the sliding sleeves 541 are fixedly connected by connecting strips 544, and a connecting seat 543 is fixed on the connecting strip 544.

[0051] In the driving assembly 6, the lifting unit 61 is a lifting cylinder, whose cylinder barrel is fixed on the top plate 12, the piston rod is set upward, and two transmission rods 62 are connected to both sides of the top. The two transmission rods 62 are connected to the two pressure assemblies 5 one by one. One end of the transmission rod 62 is hinged to the top of the piston rod, and the other end is connected to the connecting seat 543.

[0052] After adopting the above structure, the lifting cylinder drives its own piston rod to move in the vertical direction, acting on the two transmission rods 62, and can simultaneously drive the sliding members 54 on both sides to move in the horizontal direction perpendicular to the axial direction of the pressure transfer roller 31, changing the horizontal position of the sliding member 54, and then changing the horizontal position of the horizontal axis 53, so that the horizontal position of the swing arm 51 changes, and the bottom end of the swing arm 51 is connected to the pressure roller 52, so that the direction of the swing arm 51 changes, and then changes the pressure of the pressure roller 52 on the pressure transfer roller 31, thereby realizing the adjustment of the coil transmission tension.

[0053] In order to adjust the transmission tension of the web, the detection assembly 4 in the present invention includes a detection frame 41 arranged on the lifting roller seat 32, and a tension sensor 42 facing the roller shaft of the pressure roller 31 is arranged on the detection frame 41.

[0054] A further improvement is that it also includes a water supply component 7, the pressure transfer roller 31 and / or the pressure roller 52 are hollow rollers, and the water supply component 7 is used to pass external water source into the hollow roller and discharge the water in the hollow roller to the outside to adjust the transmission tension of the coil when it passes through the pressure transfer roller 31.

[0055] In this embodiment, the pressure transfer roller 31 and the pressure roller 52 are both hollow rollers. With this design, external water is input into the hollow rollers through the water supply component 7, or the water in the hollow rollers is discharged. The overall weight of the pressure transfer roller 31 and the pressure roller 52 can be adjusted, thereby changing the pressure on the coil, thereby achieving rapid adjustment of the coil transmission tension. Moreover, since the pressure transfer roller 31 and the pressure roller 52 are both hollow rollers, the water storage capacity is increased, and the adjustment range of the coil transmission tension is further expanded. In order to facilitate the injection or extraction of water into the pressure transfer roller 31 and the pressure roller 52, water supply components 7 are provided on both sides of the frame 1.

[0056] A further improvement is that the water supply component 7 includes a water pump 71, a first water pipe 73 connected between the water pump 71 and the pressure roller 31, a second water pipe 74 connected between the water pump 71 and the pressure roller 52, a first switch valve 731 arranged on the first water pipe 73 and a second switch valve 741 arranged on the second water pipe 74.

[0057] Specifically, one end of the water pump 71 is connected to the external water source, and the other end is fixedly connected to a water supply shell 72. A first water pipe 73 and two second water pipes 74 are fixedly connected to the outside of the water supply shell 72. A first switch valve 731 is provided on the first water pipe 73, and a second switch valve 741 is provided on the second water pipe 74. The water supply component 7 also includes three corrugated hoses 75. Among the three corrugated hoses 75, one is connected between the first water pipe 73 and the pressure roller 31, and the other two are respectively connected between one of the second water pipes 74 and the pressure roller 52.

[0058] After adopting the above structure, the deformable characteristic of the corrugated hose 75 is utilized to facilitate the connection between the inner cavity of the pressure transfer roller 31 and the pressure roller 52 and the water pump 71 when the position of the pressure transfer roller 31 and the pressure roller 52 changes, relying on the deformation of the corrugated hose 75. Through the design of the first switch valve 731 and the second switch valve 741, it is convenient to choose to inject water into or pump water out of a specific hollow roller, which makes the operation more convenient and the adjustment of the roll transmission tension more flexible.

[0059] A further improvement is that a suction pipe 2 is sealed through the end of the hollow roller coaxially, one end of the suction pipe 2 is fixedly connected to the corrugated hose 75, and the other end extends downward to fit the bottom gap of the inner wall of the hollow roller.

[0060] Specifically, the pumping pipe 2 is L-shaped, one end of which is connected to the end of the corrugated hose 75, and the other end is gap-fitted with the bottom of the inner wall of the hollow roller.

[0061] The pressure transmission roller 31 includes a pressure transmission cylinder 311, and pressure transmission covers 312 are fixed at both ends of the pressure transmission cylinder 311. A pressure transmission convex tube 313 is fixed coaxially on the side of the pressure transmission cover 312 facing away from the pressure transmission cylinder 311. The end of the suction pipe 2 connected to the corrugated hose 75 has its circumferential outer edge sealedly connected to the circumferential inner wall of the pressure transmission convex tube 313, and the other end is arranged in the lower roller inner cavity formed by the pressure transmission cover 312 and the pressure transmission cylinder 311, so that the water pump 71 can pump water from the pressure transmission roller 31 or inject water into the pressure transmission roller 31.

[0062] The pressure roller 52 includes a pressure cylinder 521, and pressure covers 522 are fixed at both ends of the pressure cylinder 521. A pressure convex tube 523 is fixed coaxially with the end of the pressure cover 522 facing away from the pressure cylinder 521. The end of the suction pipe 2 connected to the corrugated hose 75 has its circumferential outer edge sealedly connected to the circumferential inner wall of the pressure convex tube 523, and the other end is arranged in the side roller cavity formed by the pressure cover 522 and the pressure cylinder 521, so that the water pump 71 can pump water from the pressure roller 52 or inject water into the pressure roller 52.

[0063] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A device for adjusting transmission tension of a grid unwinder, characterized in that: include: Rack (1); A pressure transmission component (3), the pressure transmission component (3) comprising a pressure transmission roller (31) with a horizontal axis and rotating around its own axis, both ends of the pressure transmission roller (31) being connected to a lifting roller seat (32), the lifting roller seat (32) sliding on the frame (1) in a vertical direction; A detection component (4), the detection component (4) is used to detect the transmission tension of the coiled material when it passes through the bottom of the pressure transfer roller (31); A pressure assembly (5), the pressure assembly (5) comprising a swing arm (51) and a pressure roller (52), the swing arm (51) rotating on the frame (1) and having a rotation axis parallel to the axial direction of the pressure roller (52) and the axial direction of the pressure transfer roller (31), the pressure roller (52) rotating on the swing arm (51) around its own axis and having a roller surface attached to the upper side of the roller surface of the pressure transfer roller (31); A driving assembly (6), wherein the driving assembly (6) is arranged on the frame (1), and the driving assembly (6) drives the swing arm (51) to rotate to adjust the pressure of the pressure roller (52) on the pressure transfer roller (31).

2. The device for adjusting transmission tension of a grid unwinder according to claim 1, characterized in that: The pressure applying components (5) are provided in two pieces, and are respectively arranged on both sides of the vertical plane where the axis of the pressure transfer roller (31) is located.

3. The device for adjusting transmission tension of a grid unwinder according to claim 2, characterized in that: The two pressure components (5) are symmetrically distributed about the vertical plane where the axis of the pressure transfer roller (31) is located.

4. The device for adjusting transmission tension of a grid unwinder according to claim 1, characterized in that: The pressure assembly (5) further includes a sliding member (54) arranged at the top end of the swing arm (51), and the sliding member (54) moves in a horizontal direction perpendicular to the axial direction of the pressure transfer roller (31). The driving assembly (6) includes a lifting unit (61) and a transmission rod (62). The lifting unit (61) is arranged on the frame (1), and the output end of the lifting unit (61) is connected to the sliding member (54) through the transmission rod (62).

5. The device for adjusting transmission tension of a grid unwinder according to claim 4, characterized in that: In the pressure assembly (5), the swing arm (51) is arranged at both ends of the pressure roller (52) and is connected through a horizontal axis (53) axially parallel to the axis of the pressure roller (52); the sliding member (54) includes a sliding sleeve (541), a ring (542) and a connecting seat (543) fixedly connected to each other; the frame (1) includes a sliding shaft (14) extending in a horizontal direction perpendicular to the axis of the pressure roller (52); the sliding sleeve (541) is slidably sleeved outside the sliding shaft (14); the ring (542) is sealingly sleeved outside the horizontal axis (53); the transmission rod (62) is rotatably connected to the connecting seat (543) and the relative rotation axis is parallel to the axis of the pressure roller (52).

6. The device for adjusting transmission tension of a grid unwinder according to claim 1, characterized in that: It also includes a water supply component (7), the pressure transfer roller (31) and / or the pressure roller (52) are hollow rollers, and the water supply component (7) is used to pass external water into the hollow roller and discharge the water in the hollow roller to the outside, so as to adjust the transmission tension of the coiled material when passing through the pressure transfer roller (31).

7. The device for adjusting transmission tension of a grid unwinder according to claim 6, characterized in that: The pressure transfer roller (31) and the pressure applying roller (52) are both hollow rollers.

8. The device for adjusting transmission tension of a grid unwinder according to claim 6, characterized in that: The water delivery assembly (7) comprises a water pump (71), a first water pipe (73) connected between the water pump (71) and the pressure roller (31), a second water pipe (74) connected between the water pump (71) and the pressure roller (52), a first switch valve (731) provided on the first water pipe (73), and a second switch valve (741) provided on the second water pipe (74).

9. The device for adjusting transmission tension of a grid unwinder according to claim 8, characterized in that: The water delivery assembly (7) further comprises a corrugated hose (75), wherein the corrugated hose (75) is connected between the first water pipe (73) and the pressure transfer roller (31) and between the second water pipe (74) and the pressure roller (52).

10. The device for adjusting transmission tension of a grid unwinder according to claim 9, characterized in that: The end of the hollow roller is sealed with a pumping pipe (2) running through it coaxially. One end of the pumping pipe (2) is fixedly connected to the corrugated hose (75), and the other end extends downward to fit into the bottom gap of the inner wall of the hollow roller.

Images