CN210260553U

CN210260553U - Tension adjusting device

Info

Publication number: CN210260553U
Application number: CN201921221973.2U
Authority: CN
Inventors: 陈安顺
Original assignee: Group Up Industrial Co ltd
Current assignee: Group Up Industrial Co ltd
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-04-07
Anticipated expiration: 2029-07-31

Abstract

A tension adjusting device is suitable for winding a feeding belt and comprises a base, a fixed pulley, a rope, a movable pulley block and a matching set. The rope is wound around the fixed pulley and includes a first end portion and a second end portion. The movable pulley block can be connected to the base in a vertically sliding mode and connected to the first end portion, and the bottom end of the movable pulley block is used for winding the feeding belt and can slide and move on the base along with the change of the tension of the material belt. The counterweight group is connected to the base in a vertically sliding manner and connected to the second end portion, and the counterweight group can selectively adjust the load applied to the rope. Therefore, the preset load applied to the material belt by the movable pulley block can be adjusted and controlled to provide the proper tension required by the material belt in the conveying process.

Description

Tension adjusting device

Technical Field

The present invention relates to a tension adjusting device, and more particularly to a tension adjusting device for adjusting and providing tension of a material belt.

Background

The flexible material belt conveyed by the conventional Roll-to-Roll (Roll to Roll) conveying device is increasingly thinner and thinner, and if the flexible material belt cannot provide proper tension, the flexible material belt is easily loosened or excessively tightened during the conveying process.

Disclosure of Invention

An object of the present invention is to provide a tension adjusting device capable of overcoming at least one of the drawbacks of the background art.

The utility model discloses an aim at and solve the background technical problem and adopt following technical scheme to realize, the foundation the utility model provides a tension adjusting device is suitable for the feed area to coil.

Tension adjusting device contains base, fixed pulley, rope, movable pulley group, and joins in marriage the heavy group, the fixed pulley rotationally the pin joint in the base, the rope is convoluteed in the fixed pulley top includes first end, and on the contrary in the second end of first end, movable pulley group slidable connect from top to bottom in the base and connect in first end, movable pulley group bottom is used for supplying the material area is convoluteed and can be followed the material area tension changes and in sliding displacement on the base, join in marriage heavy group slidable connect from top to bottom in the base and connect in the second end, but weight group selective adjustment is applied to load on the rope.

The utility model discloses a tension adjusting device, the base includes an at least first guide arm, and an at least second guide arm, the running block include slidable ground connect in first guide arm and fixedly connect in the first slider of first end, join in marriage the reorganization including slidable ground connect in the second guide arm and fixedly connect in the second slider of second end.

The utility model discloses a tension adjusting device, first slider reaches the second slider all is slide bearing.

The utility model discloses a tension adjusting device, first slider reaches the second slider all is air bearing.

The utility model discloses a tension adjusting device, the base includes two first guide arms, and two second guide arms, first slider slidable connect in first guide arm, second slider slidable connect in the second guide arm.

The utility model discloses a tension adjusting device, the running block still including set up in first slider one side is used for supplying the movable pulley that the material area was convoluteed, the counterweight group still including set up in the counter weight unit of second slider one side.

The utility model discloses a tension adjusting device, the counter weight unit contain set up in the second slider bear the frame, and a plurality of detachably assemble in bear the balancing weight of frame.

The utility model discloses a tension adjusting device, bear the frame including being fixed in the second slider is used for bearing the loading board of balancing weight, and two set up in the reference column of loading board top surface, the balancing weight is formed with two and supplies respectively the locating hole that the reference column was worn to establish.

The utility model discloses a tension adjusting device still contain set up in the base is used for the sensing the linear displacement volume's of first slider sensor.

The utility model discloses a tension adjusting device, the base still including set up in the lower spacing piece of first guide arm, and set up in the last spacing piece of first guide arm, lower spacing piece interval is located first slider below is used for the stop first slider, it is located to go up spacing piece interval first slider top is used for the stop first slider.

The utility model discloses a tension adjusting device, the weight of joining in marriage is including bearing the frame, and a plurality of detachably assemble in bear the balancing weight of frame.

Tension adjusting device contains first guide arm, second guide arm, fixed pulley, rope, running block, and joins in marriage the heavy group, the fixed pulley is located first guide arm with between the second guide arm, the rope convolute in the fixed pulley top, the running block including can connect in with sliding from top to bottom first guide arm and connect in the first slider of rope one end, the running block bottom is used for supplying the material area is convoluteed and can be followed the material area tension change and in sliding displacement on the first guide arm, join in with heavy group including sliding from top to bottom connect in the second guide arm and connect in the second slider of the rope other end, but the weight group selective adjustment is applied in load on the rope.

The beneficial effects of the utility model reside in that: by means of the design of the fixed pulleys, the ropes, the movable pulley blocks and the matching sets, the preset load applied to the material belt by the movable pulley blocks can be adjusted and controlled so as to provide proper tension required by the material belt in the conveying process.

Drawings

Fig. 1 is a perspective view of an embodiment of the tension adjusting apparatus of the present invention;

FIG. 2 is an exploded perspective view of a tension adjustment mechanism of the illustrated embodiment;

FIG. 3 is a rear view of the tensioning mechanism of the embodiment;

FIG. 4 is a side view of the tension adjustment mechanism of the embodiment as applied to a roll-to-roll conveyor; and

fig. 5 is a side view similar to fig. 4, illustrating a belt driving a running block to slide upward.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

Referring to fig. 1, which is an embodiment of the tension adjusting device 200 of the present invention, the tension adjusting device 200 is applied to a roll-to-roll conveying device, for example. The roll-to-roll conveying device is used for conveying a flexible material strip 11 (shown in fig. 4) to move for various processes. The tensioning device 200 is adapted to wind the supply tape 11 to adjust and provide the appropriate tension to the supply tape 11. The tension adjusting apparatus 200 includes two tension adjusting mechanisms 20, and the two tension adjusting mechanisms 20 are symmetrically disposed in a left-right direction Y and are arranged side by side. Since the two tension adjustment mechanisms 20 have the same structure, only one set of the tension adjustment mechanisms 20 will be described below.

Referring to fig. 2, 3 and 4, the tension adjusting mechanism 20 includes a base 2, a fixed pulley 3, a rope 4, a movable pulley block 5, a matching unit 6 and a sensor 7. The base 2 includes a bottom plate 21, a top plate 22, two first guide rods 23, two second guide rods 24, two lower stoppers 25, two upper stoppers 26, a first bracket 27, and a second bracket 28. The top plate 22 is spaced above the bottom plate 21 in an up-down direction Z. The two first guide rods 23 are disposed between the bottom plate 21 and the top plate 22 and spaced apart from each other along a front-back direction X, and an axial direction of each first guide rod 23 extends along an up-down direction Z. The two second guide rods 24 are disposed between the bottom plate 21 and the top plate 22 and spaced apart from each other in the left-right direction Y, the two second guide rods 24 are spaced apart from each other in front of the corresponding first guide rods 23, and the axial direction of each second guide rod 24 extends in the up-down direction Z. Each lower limiting member 25 is disposed adjacent to the bottom plate 21 corresponding to the first guide bar 23 and has a first ring 251, a second ring 252, and two screws 253. The first ring 251 and the second ring 252 are sleeved on the first guide bar 23, and the first ring 251 and the second ring 252 are locked together by two screws 253, so that the first guide bar 23 is tightened and fixed by the first ring 251 and the second ring 252. Each upper limiting member 26 is disposed corresponding to the first guiding rod 23 and adjacent to the top plate 22, and each upper limiting member 26 has the same structure as each lower limiting member 25 and has a first collar 261, a second collar 262, and two screws 263. The first collar 261 and the second collar 262 are jointly sleeved on the first guide rod 23, and the first collar 261 and the second collar 262 are locked together by two screws 263, so that the first guide rod 23 is tightened and fixed by the first collar 261 and the second collar 262. The first bracket 27 is disposed on the bottom surface of the top plate 22 and located between the first guide bar 23 and the second guide bar 24, the first bracket 27 has a shaft 271, and the shaft 271 extends in the left-right direction Y in the axial direction. The second bracket 28 is disposed on the top surface of the top plate 22.

The fixed pulley 3 is rotatably pivoted to the shaft 271 of the first bracket 27 and located between the first guide rod 23 and the second guide rod 24. The rope 4 is wound around the top end of the fixed pulley 3 and includes a first end 41 and a second end 42 opposite to the first end 41. The first end portion 41 is formed with a first opening 411, and the second end portion 42 is formed with a second opening 421.

The movable pulley block 5 includes a first sliding member 51, a movable pulley 52, and a connecting unit 53. The first sliding member 51 is connected to the two first guide rods 23 in a vertically slidable manner along the vertical direction Z and is spaced above the lower limiting member 25 and below the upper limiting member 26. The first sliding member 51 has a first sliding block 510, and the first sliding block 510 is formed with two first through holes 511, a first screw hole 512, and a through hole 513. The two first through holes 511 are spaced apart from each other along the front-back direction X, and each first through hole 511 extends along the up-down direction Z and is provided for the corresponding first guide rod 23 to penetrate through. The first screw hole 512 is located at the front end of the first slider 510 and corresponds to the first opening 411 of the first end portion 41 of the rope 4. The through hole 513 is located between the first through holes 511 and extends in the left-right direction Y. A first screw 514 of the first sliding member 51 is inserted into the first opening 411 and screwed into the first screw hole 512, so as to fix the first end portion 41 to the first sliding block 510. In the present embodiment, the first sliding member 51 is a sliding bearing. More specifically, the first slider 51 is an Air Bearing (Air Bearing). By injecting compressed air between the first through hole 511 and the first guide bar 23, the first slider 51 does not directly contact the first guide bar 23 and a floating effect can be generated. Therefore, the friction between the first sliding member 51 and the first guide rod 23 during the sliding process can be greatly reduced, so that the first sliding member 51 can slide upwards or downwards sharply and smoothly when being subjected to an external force.

In the present embodiment, the cross sections of the first guide rods 23 and the first through holes 511 cut along the horizontal direction are all circular, so that the first sliding member 51 can be prevented from rotating during the sliding process along the first guide rods 23 by the design manner that the number of the first guide rods 23 and the number of the first through holes 511 are two. Of course, in other embodiments, if the cross-section of each first guide rod 23 and each first through hole 511 is non-circular, the number of the first guide rods 23 and the number of the first through holes 511 may be one.

The lower limiting member 25 is used for stopping the bottom end of the first slider 510 of the first sliding member 51 to define a limit position of downward sliding. The upper limiting member 26 is used to stop the top end of the first slider 510 of the first sliding member 51 to define an upward sliding limit position.

The movable pulley 52 is located outside the first sliding member 51, and the bottom end of the movable pulley 52 is used for winding the material supply belt 11, and the movable pulley 52 is formed with a shaft hole 521 extending along the left-right direction Y. The connecting unit 53 has a shaft 531, a fixing ring 532, a spacing ring 533, and a stop ring 534. The shaft 531 is inserted through the through hole 513 of the first slider 51 and the shaft hole 521 of the movable pulley 52. The fixing ring 532 is fixed to one end of the shaft 531 and is screwed to the first slider 51. The spacing ring 533 is fixed to the middle of the shaft 531 and located between the first sliding member 51 and the movable pulley 52 for separating the first sliding member 51 and the movable pulley 52. The stop ring 534 is fixed on the other end of the shaft 531 for stopping the pulley 52 to prevent it from separating from the shaft 531.

The counterweight group 6 includes a second sliding member 61 and a counterweight unit 62. The second sliding member 61 is connected to the two second guide rods 24 in a vertically slidable manner along the vertical direction Z and has a second sliding block 610, and the second sliding block 610 is formed with two second through holes 611 and a second screw hole 612. The two second through holes 611 are spaced apart from each other along the left-right direction Y, and each second through hole 611 extends along the up-down direction Z and is provided for the corresponding second guide rod 24 to penetrate. The second screw hole 612 is located at the rear end of the second slider 610 and corresponds to the second opening 421 of the second end portion 42. A second screw 613 of the second sliding member 61 is inserted into the second opening 421 and screwed into the second screw hole 612, so as to fix the second end portion 42 to the second sliding block 610. In the present embodiment, the second sliding member 61 is a sliding bearing. More specifically, the second slider 61 is an air bearing. By injecting compressed air between the second through hole 611 and the second guide bar 24, the second slider 61 does not directly contact the second guide bar 24 and a floating effect can be generated. Therefore, the friction between the second sliding member 61 and the second guide rod 24 during the sliding process can be greatly reduced, so that the second sliding member 61 can slide upwards or downwards sharply and smoothly when being acted by external force.

In the present embodiment, the cross sections of the second guide rods 24 and the second through holes 611 cut along the horizontal direction are all circular, so that the second sliding member 61 can be prevented from rotating during the sliding process along the second guide rods 24 by the design manner that the number of the second guide rods 24 and the number of the second through holes 611 are two. Of course, in other embodiments, if the cross-sections of the second guide rods 24 and the second through holes 611 are non-circular, the number of the second guide rods 24 and the number of the second through holes 611 may be one.

The weight unit 62 includes a carrier 621 and a plurality of weights 622. The supporting frame 621 includes a supporting plate 623 and two positioning posts 624. The bearing plate 623 is in an inverted L shape and is fastened to the front end of the second slider 610 of the second slider 61 by screws for bearing the weight block 622. Each positioning column 624 is disposed on the top surface of the supporting plate 623, and an axial direction of each positioning column 624 extends along the vertical direction Z. Each weight 622 has two positioning holes 625 through which two positioning posts 624 are inserted.

To assemble the weight block 622 on the supporting frame 621, the two positioning holes 625 of the weight block 622 are aligned above the two positioning posts 624, and then the weight block 622 is moved downward to make each positioning post 624 penetrate through the corresponding positioning hole 625. When the weight 622 is stopped by the carrier 623, the weight 622 cannot move downward, and the assembly of the weight 622 is completed. The above assembly is repeated to assemble the rest of the weights 622 to the carrier 621 and stack them together. The two positioning posts 624 are respectively inserted into the two positioning holes 625 of each weight block 622 to prevent each weight block 622 from rotating relative to the supporting frame 621, so that each weight block 622 can be stably positioned on the supporting frame 621. To detach the weight 622 from the supporting frame 621, the weight 622 is moved upward, and when the two positioning holes 625 of the weight 622 are respectively moved away from the two positioning posts 624, the weight 622 can be detached from the supporting frame 621. Therefore, an operator can selectively assemble a predetermined number of weight blocks 622 on the bearing frame 621 according to a set requirement to adjust the load of the weight assembly 6 on the second end 42 of the rope 4.

The sensor 7 is a linear encoder disposed on the second bracket 28, and has a connecting wire 71, the connecting wire 71 is disposed through a through hole 221 of the top plate 22 and connected to the top end of the first slider 510 of the first slider 51. The sensor 7 is used to convert the linear displacement of the first sliding member 51 into an electronic signal, and transmit the electronic signal to a computer (not shown) through a signal transmission line (not shown) for being used as a parameter for subsequently calculating the tension applied to the tape 11.

Referring to fig. 4 and 5, the material strip 11 conveyed by the roll-to-roll conveying device is first wound around a conveying roller 12, then passes through the conveying roller 12 and moves downward to be wound around the bottom end of the movable pulley 52, then passes through the movable pulley 52 and moves upward to be wound around another conveying roller 13, and finally, the material strip 11 is wound by a winding roller (not shown). In the state that the take-up roller has not rotated and takes up the tape 11, the movable pulley 52 is maintained at a position shown in fig. 4 and applies a predetermined load to the tape 11 by the weight of the movable pulley 52 itself and the load applied to the second end 42 of the cord 4 by the matching set 6.

When the take-up roll rotates and takes up the strip 11, the strip 11 exerts a pulling force P on the movable pulley 52 and tightens thereon. When the tension P is greater than the predetermined load and overcomes the predetermined load, the tape 11 will lift the movable pulley 52 upward in an upward moving direction U to a position shown in fig. 5. Since the friction between the first sliding member 51 and the first guide rod 23 is relatively small, the first sliding member 51 can slide upwards sharply and smoothly when driven by the pulley 52. During the upward sliding process of the first sliding member 51, the rope 4 is in a slack state, and at this time, the weight set 6 slides downward in a downward moving direction D by its own weight and pulls the rope 4 to drive the fixed pulley 3 to rotate in a first rotating direction R1. Since the friction between the second slider 61 and the second guide bar 24 is relatively small, the second slider 61 can slide down sharply and smoothly to pull the rope 4 when the rope 4 is in a slack state. With the predetermined load applied to the strip of material 11 by the movable pulley 52, the tension P of the strip of material 11 at the two ends of the movable pulley 52 is equal to half of the predetermined load, i.e., the tension of the strip of material 11 is equal to half of the predetermined load. Therefore, the tension adjusting device 200 can provide a proper tension for the tape 11, so that the tape 11 will not be loosened or too tight during the transportation process.

When the take-up roller stops rotating, the tape 11 stops applying the pulling force P to the movable pulley 52 and becomes loose, and at this time, the first sliding member 51 slides downward along the downward moving direction D and returns to the position shown in fig. 4, so that the movable pulley 52 drives the tape 11 to move downward. During the downward sliding process of the first sliding member 51, the rope 4 is pulled to drive the fixed pulley 3 to rotate along a second rotating direction R2. The second slider 61 is pulled by the rope 4 to slide upward in the upward moving direction U and return to the position shown in fig. 4.

It should be noted that, when the predetermined load applied to the tape 11 by the movable pulley 52 is reduced, the amount of the predetermined load is reduced by increasing the number of the weight blocks 622 assembled on the bearing frame 621, so as to reduce the tension applied to the tape 11. Conversely, when the predetermined load applied to the strip 11 by the movable pulley 52 is increased, the amount of the predetermined load is increased by reducing the number of the weight blocks 622 assembled on the bearing frame 621, so as to increase the tension applied to the strip 11. Therefore, an operator can selectively assemble a predetermined number of weight blocks 622 on the loading frame 621 according to the thickness of the tape 11 and the tension to be provided to the tape 11, so as to control the movable pulley 52 to apply a predetermined load to the tape 11, thereby providing the proper tension required by the tape 11 during the conveying process.

Summarizing the above, the tension adjusting device 200 of the present embodiment can adjust and control the predetermined load applied to the tape 11 by the movable pulley 52 by the design of the fixed pulley 3, the rope 4, the movable pulley block 5 and the counterweight group 6, so as to provide the proper tension required by the tape 11 during the conveying process. In addition, by the design mode that the first sliding part 51 and the second sliding part 61 are both air bearings, the friction between the first guide rod 23 and the second guide rod 24 can be greatly reduced, so that the movable pulley block 5 can slide upwards or downwards sharply and smoothly along with the tension change of the material belt 11, and the purpose of the utility model can be achieved.

Claims

1. A tension adjusting device is suitable for winding a feeding belt; the method is characterized in that:

2. The tensioning device according to claim 1, wherein: the base comprises at least one first guide rod and at least one second guide rod, the movable pulley block comprises a first sliding part which is connected with the first guide rod in a sliding mode and fixedly connected with the first end portion, and the matching block comprises a second sliding part which is connected with the second guide rod in a sliding mode and fixedly connected with the second end portion.

3. The tensioning device according to claim 2, wherein: the first sliding part and the second sliding part are sliding bearings.

4. A tensioning device according to claim 3, characterized in that: the first sliding part and the second sliding part are both air bearings.

5. The tensioning device according to claim 2, wherein: the base comprises two first guide rods and two second guide rods, the first sliding part is connected to the first guide rods in a sliding mode, and the second sliding part is connected to the second guide rods in a sliding mode.

6. A tensioning device according to any one of claims 2 to 5, characterised in that: the movable pulley block further comprises a movable pulley arranged on one side of the first sliding part and used for winding the material belt, and the counterweight group further comprises a counterweight unit arranged on one side of the second sliding part.

7. The tensioning device according to claim 6, wherein: the counterweight unit comprises a bearing frame arranged on the second sliding part and a plurality of counterweight blocks detachably assembled on the bearing frame.

8. The tensioning device according to claim 7, wherein: the bearing frame comprises a bearing plate fixed on the second sliding part and used for bearing the balancing weight, and two positioning columns arranged on the top surface of the bearing plate, wherein the balancing weight is provided with two positioning holes for the positioning columns to penetrate through.

9. A tensioning device according to any one of claims 2 to 5, characterised in that: the first sliding part is arranged on the base and used for sliding along the first direction.

10. A tensioning device according to any one of claims 2 to 4, characterized in that: the base further comprises a lower limiting piece and an upper limiting piece, the lower limiting piece is arranged on the first guide rod, the upper limiting piece is arranged on the first guide rod, the lower limiting piece is located below the first sliding piece at intervals and used for stopping the first sliding piece, and the upper limiting piece is located above the first sliding piece at intervals and used for stopping the first sliding piece.

11. The tensioning device according to claim 1, wherein: the counterweight group comprises a bearing frame and a plurality of counterweight blocks which are detachably assembled on the bearing frame.

12. A tension adjusting device is suitable for winding a feeding belt; the method is characterized in that:

13. The tensioning device according to claim 12, wherein: the first sliding part and the second sliding part are both air bearings.