CN213568629U - Uncoiling device of uncoiling machine - Google Patents

Abstract

The utility model relates to an unwinding device of unwinding machine relates to the field of unwinding machine, and it includes the frame, the fixed unwinding frame that is provided with in the frame, it is provided with two live-rollers that are used for the bearing yardage roll to rotate on the unwinding frame, it is provided with two gag lever posts still to fix on the unwinding frame, and two the gag lever post is located two the top of live-roller, every all be provided with on the gag lever post and keep off the cloth structure, it is in including sliding the setting to keep off the cloth structure backup pad on the gag lever post, the backup pad is kept away from the fixed extension rod that is provided with on the lateral wall of unwinding frame one side, it is provided with fender cloth rod to rotate on the extension rod, keep off cloth rod with be provided with limit structure in the backup pad. This application has the effect that reduces the possibility that cloth dropped among the unwinding process.

Description

Uncoiling device of uncoiling machine

Technical Field

The application relates to the field of uncoilers, in particular to an uncoiling device of an uncoiler.

Background

The dyeing and finishing process is a chemical and physical process of the fabric on special equipment through dyes, medicaments and auxiliaries under certain process conditions. The cloth needs to be opened before the dyeing and finishing process, and the used machine equipment is an unwinder.

Chinese utility model patent with grant bulletin number CN208948454U, it discloses an unwinder, which comprises a frame, be fixed in the frame of unreeling, rotate the biography cloth roller of connecting in the frame, the roller of unreeling, be provided with cloth pressing mechanism in the frame, cloth pressing mechanism is including being fixed in the frame and being located the horizontal pole between biography cloth roller and the roller of unreeling, the cover is located on the horizontal pole and is located the regulation seat at horizontal pole both ends respectively, articulate the installation pole on adjusting the seat, rotate the compress roller of connecting on the installation pole, be formed with the clamp cloth space between compress roller and the roller of unreeling, and be provided with between regulation seat and installation pole and be used for ordering about the compress roller and move towards the tensioning piece that the roller moved of unreeling.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: after cloth is placed on the cloth storage rack, the cloth needs to be pulled by the unwinding roller to be unwound, the cloth tends to remain static due to inertia, and therefore the cloth can be pulled up from the cloth storage rack at the moment when the cloth is pulled by the unwinding roller to be unwound.

SUMMERY OF THE UTILITY MODEL

In order to improve the possible problem that cloth is easy to be pulled and falls off from a cloth storage rack, the application provides an unwinding device of an unwinding machine.

The application provides an unwinding device of unwinding machine adopts following technical scheme:

the utility model provides an unwinding device of unwinding machine, includes the frame, the fixed unwinding frame that is provided with in frame, it is provided with two and is used for bearing yardage roll live-rollers to rotate on the unwinding frame, it is provided with two gag lever posts still to fix on the unwinding frame, and two the gag lever post is located two the top of live-rollers, every all be provided with on the gag lever post and keep off the cloth structure, it is in including sliding the setting to keep off the cloth structure backup pad on the gag lever post, the backup pad is kept away from the fixed extension rod that is provided with on the lateral wall of unwinding frame one side, it is provided with the fender cloth rod to rotate on the extension rod, keep off the cloth rod with be provided with limit structure in the backup pad.

By adopting the technical scheme, when the cloth is uncoiled, the cloth on the uncoiling rack is easy to drop. And the fender cloth structure of extra setting, after cloth put into the unwinding frame, only need rotate the fender cloth pole for keep off cloth pole and become the effect of blockking to cloth, the position adjustment of fender cloth pole is accomplished the back, utilizes limit structure to inject the position of fender cloth pole. Therefore, the arrangement of the limiting structure can reduce the possibility that cloth on the unwinding frame falls.

Preferably, limit structure is including fixed setting up first spacing ring in the backup pad, just first spacing ring fixed cover is established on the extension rod, limit structure is still including fixed setting up second spacing ring on the fabric blocking pole, just second spacing ring slip cover is established on the extension rod, first spacing ring is close to the fixed first ring gear that is provided with of circumference on the lateral wall of second spacing ring one side, the second spacing ring is close to the fixed second ring gear that is provided with of circumference on the lateral wall of first spacing ring one side, just first ring gear with second ring gear intermeshing, be provided with on the extension rod and be used for promoting first ring gear with second ring gear intermeshing's promotion structure.

By adopting the technical scheme, after the position of the cloth blocking rod is adjusted, the position of the cloth blocking rod needs to be fixed. When the position of cloth blocking rod is fixed, the cloth blocking rod is pushed to move towards the first limiting ring along the extension rod only by utilizing the pushing structure, and the cloth blocking rod is moved to drive the second limiting rod to be close to the first limiting ring, so that the first gear ring and the second gear ring are meshed with each other, and the cloth blocking rod is fixed in position.

Preferably, the pushing structure comprises first pushing rods, second pushing rods are fixedly arranged at two ends of each first pushing rod, one ends, far away from the first pushing rods, of the second pushing rods are tightly abutted to the second limiting rings, and a pulling structure is arranged on each first pushing rod between the two second pushing rods.

Through adopting above-mentioned technical scheme, when the position of fixed fender cloth pole, only need drive first catch bar through the pulling structure and remove, the removal of first catch bar drives two second catch bars and removes towards the fender cloth pole along the extension rod removes, and two second catch bars then promote the second spacing ring orientation and be close to first spacing ring and remove for first ring gear and second ring gear intermeshing, thereby the position of fixed fender cloth pole. Therefore, the arrangement of the pushing structure can push the second limiting ring to move close to the first limiting ring.

Preferably, the pulling structure is including fixed setting the pulling rod on the first catch bar, the hole of sliding has been seted up on the extension rod, the extension rod is kept away from the fixed collar that is provided with in one end of backup pad, the pulling rod with slide hole sliding fit, just the pulling rod is kept away from the fixed pulling plate that is provided with in one end of first catch bar, the pulling plate with slide hole sliding fit, the extension rod with between the pulling plate sliding sleeve is equipped with the pulling spring on the pulling rod, the one end of pulling spring with the pulling plate supports tightly, the other end of pulling spring with the collar supports tightly.

Through adopting above-mentioned technical scheme, when first ring gear and second ring gear intermeshing, the pulling spring is in compression state, and the elastic force that the pulling spring recovered deformation constantly promotes the pulling plate and moves towards the fender cloth pole, and the pulling plate then drives first catch bar through the pulling rod and moves along the extension rod towards the fender cloth pole, and the catch bar drives two second catch bars and constantly supports tightly with the second spacing ring to reduce the possibility that first ring gear and second ring gear break away from the meshing.

Preferably, two ends of the two pushing rods, which are close to the second limiting ring, are circumferentially and fixedly provided with first friction plates, the second limiting ring is fixedly provided with second friction plates, and the first friction plates and the second friction plates are tightly abutted.

Through adopting above-mentioned technical scheme, set up first friction disc and second friction disc and can increase the frictional force between two second catch bars and the second spacing ring to reduce the gliding possibility between two second catch bars and the second spacing ring.

Preferably, be provided with location structure on pulling plate and the extension rod, the shrinkage pool has been seted up on the pulling plate, it sets up two universal balls to slide in the shrinkage pool, it is provided with positioning spring still to slide in the shrinkage pool, positioning spring's both ends all with one universal ball supports tightly, and then set up the confession on the inner wall in hole that slides the constant head tank that universal ball sinks.

Through adopting above-mentioned technical scheme, when the position of fender cloth pole is adjusted to needs, need two second catch bars and second spacing ring to break away from to support tight state. And when the two second push rods and the second limiting ring are kept in the state of being separated from the abutting state, only the first push rod needs to be pulled, and the first push rod drives the two second push rods and the second limiting ring to be separated from the abutting state. The first pushing rod drives the pulling rod to move towards the direction away from the cloth blocking rod along the sliding hole, and the pulling rod drives the pulling plate to move along the sliding hole. The movement of the pulling plate drives the positioning beads to sink into the positioning grooves, so that the two second pushing rods and the stop rod are kept in a separated and tightly-abutted state.

Preferably, two all be provided with locking structure on the gag lever post, locking structure includes two lock sleeves, and the cover all slides on every gag lever post and is equipped with a lock sleeve, two the locking is sheathe in fixedly and is provided with the check lock lever, the fixed fender cloth board that is provided with on the check lock lever, the fender cloth board is close to the live-rollers.

Through adopting above-mentioned technical scheme, cloth need fix the position of cloth in putting into the unwinding frame. When fixing cloth position, only need promote the check lock lever, the check lock lever drives the lock sleeve and removes along the gag lever post, and the removal of check lock lever also drives the fender cloth constantly to remove simultaneously to make fender cloth and cloth support tightly, thereby accomplish the fixed to cloth position.

Preferably, each locking rod is provided with a locking bolt, the locking bolt penetrates through the locking sleeve, and the locking bolt is tightly abutted to a limiting rod in the locking sleeve.

By adopting the technical scheme, after the position of the cloth baffle is adjusted, the position of the cloth baffle needs to be locked. Only the tightening bolt needs to be screwed, so that the tightening bolt is continuously abutted against the limiting rod, and the position of the limiting rod is locked and locked by the locking sleeve.

Preferably, be provided with fixed knot in the backup pad and construct, fixed knot constructs including setting up arc ring in the backup pad, the arc ring is located the backup pad is close to the one end of gag lever post, just arc ring sliding sleeve is established on the gag lever post, the fixed first mount pad that is provided with of one end of arc ring, it runs through and is provided with first installation pole to rotate on the first mount pad, the fixed dead lever that is provided with on the first installation pole, the arc ring is kept away from the fixed second mount pad that is provided with of one end of first mount pad, it runs through and is provided with the second installation pole to rotate on the second mount pad, it is provided with fixed pipe to fix on the second installation pole to run through, the dead lever slides and runs through fixed pipe, the dead lever is kept away from the one end of first installation pole is provided with fixation nut.

Through adopting above-mentioned technical scheme, cloth is put into the unwinding frame, needs to keep off the position of cloth pole at the gag lever post according to the length adjustment of cloth. When the position of the cloth blocking rod on the limiting rod is adjusted, the arc-shaped ring only needs to be pushed to move along the limiting rod, and the cloth blocking rod is driven by the arc-shaped ring through the supporting plate to move. After the position of the cloth blocking rod is adjusted, the position of the cloth blocking rod needs to be fixed. At this moment, only need twist and move fixation nut, fixation nut moves towards first extension rod along the dead lever, and fixation nut drives the second extension rod through fixed pipe and is close to first extension rod for the gag lever post is cramped to the arc ring, thereby accomplishes the fixed to fender cloth rod position.

In summary, the present application includes at least one of the following beneficial technical effects:

by arranging the cloth blocking structure, after the cloth is placed in the unwinding frame, the cloth blocking rod only needs to be rotated, so that the cloth blocking rod can block the cloth, and then the position of the cloth blocking rod is fixed by using the limiting structure, so that the possibility that the cloth on the unwinding frame falls off is reduced;

by arranging the limiting structure, after the position of the cloth blocking rod is adjusted, the pushing structure is only needed to push the second limiting ring to move towards the first limiting ring along the extension rod, so that the first gear ring is meshed with the second gear ring, and the position fixing of the cloth blocking rod is completed;

by arranging the pushing structure and the pulling structure, after the first gear ring and the second gear ring are meshed with each other, the pulling spring is in a compressed state, and the pulling spring drives the two second pushing rods to continuously and tightly abut against the cloth blocking rod through the pulling rod, so that the possibility that the first gear ring and the second gear ring are disengaged is reduced;

by arranging the positioning structure, when the position of the cloth blocking rod needs to be adjusted, two second pushing rods and two second limiting rings need to be kept in a state of being separated from a tight state, and only the first pushing rod needs to be pulled and drives the positioning beads to sink into the positioning grooves through the pulling plate, so that the two second pushing rods and the two second limiting rings are kept in the state of being separated from the tight state;

through setting up fixed knot and constructing, according to the length adjustment cloth blocking rod of cloth in the position of gag lever post, only need promote the arc ring and remove along the gag lever post, twist fixation nut afterwards for the gag lever post is cramped to the arc ring, thereby accomplishes the fixed to cloth blocking rod position.

Drawings

Fig. 1 is a schematic view of the overall structure of the present application.

Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a schematic structural diagram of the limiting structure and the pulling structure of the present application.

FIG. 4 is a cross-sectional view of the push, pull and positioning structures of the present application.

Fig. 5 is a schematic structural view of the locking structure of the present application.

Description of reference numerals: 1. a frame; 11. unwinding the rack; 12. a rotating roller; 13. a limiting rod; 14. a connecting rod; 2. a cloth blocking structure; 21. a support plate; 22. an extension pole; 23. a cloth blocking rod; 24. a sliding hole; 25. a mounting ring; 3. a fixed structure; 31. an arc-shaped ring; 32. a first mounting seat; 33. a first mounting bar; 34. fixing the rod; 35. a second mounting seat; 36. a second mounting bar; 37. a fixed tube; 38. fixing a nut; 4. a limiting structure; 41. a first limit ring; 42. a second stop collar; 43. a first ring gear; 44. a second ring gear; 5. a pulling structure; 51. pulling the movable plate; 52. pulling a rod; 53. pulling the spring; 6. a pushing structure; 61. a first push rod; 62. a second push rod; 63. a first friction plate; 64. a second friction plate; 7. a positioning structure; 71. concave holes; 72. a positioning spring; 73. a universal ball; 74. positioning a groove; 8. a locking structure; 81. a locking sleeve; 82. a locking lever; 83. locking the bolt; 84. a cloth baffle plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses unwinding device of unwinding machine. Referring to fig. 1, the unwinding device of the unwinding machine comprises a frame 1, and an unwinding frame 11 is fixedly connected to the frame 1 on one side close to the ground. Two rotating rollers 12 for supporting the cloth roll are rotatably connected to the unwinding frame 11, and the axes of the two rotating rollers 12 are positioned on the same horizontal plane. The unwinding frame 11 is also fixedly connected with two connecting rods 14, the two limiting rods 13 are positioned above the two rotating rollers 12, and the unwinding frame 11 above the connecting rods 14 is fixedly connected with the two limiting rods 13.

Referring to fig. 2 and 3, the limiting rod 13 is provided with a fixing structure 3, and the fixing structure 3 includes an arc-shaped ring 31 slidably sleeved on the limiting rod 13. One end of the arc-shaped ring 31 is fixedly connected with a first mounting seat 32, the first mounting seat 32 is rotatably connected with a first mounting rod 33, the first mounting rod 33 is fixedly connected with a fixing rod 34, and the fixing rod 34 is perpendicular to the first mounting rod 33.

One end of the arc-shaped ring 31 far away from the first mounting seat 32 is fixedly connected with a second mounting seat 35, the second mounting seat 35 is connected with a second mounting rod 36 in a rotating manner, the second mounting rod 36 is fixedly connected with a fixing pipe 37 in a penetrating manner, and the fixing pipe 37 is perpendicular to the second mounting rod 36. The fixing rod 34 slides through the fixing tube 37, a fixing nut 38 is screwed to one end of the fixing rod 34 away from the first mounting rod 33, and the fixing nut 38 is tightly abutted to the fixing tube 37.

Be provided with on the arc ring 31 and keep off cloth structure 2, keep off cloth structure 2 and include fixed connection in the backup pad 21 of arc ring, fixedly connected with extension rod 22 on the lateral wall of backup pad 21 keeping away from unwinding frame 12 one side is provided with limit structure 4 on the extension rod 22, is provided with cloth blocking rod 23 on limit structure 4.

The limiting structure 4 comprises a first limiting ring 41 fixedly sleeved on the extension rod 22, and the first limiting ring 41 is fixedly connected with the support plate 21. The extension rod 22 is further slidably sleeved with a second limiting ring 42, and the second limiting ring 42 is fixedly connected with the cloth blocking rod 23. A first gear ring 43 is circumferentially and fixedly arranged on the side wall of the first limiting ring 41 close to one side of the second limiting ring 42, a second gear ring 44 is fixedly arranged on the side wall of the second limiting ring 42 close to one side of the first gear ring 43, and the first gear ring 43 and the second gear ring 44 are meshed with each other.

The extension rod 22 is provided with a pushing structure 6 for pushing the first gear ring 43 and the second gear ring 44 to be meshed, the pushing structure 6 comprises a first pushing rod 61 slidably mounted on the extension rod 22, the first pushing rod 61 is located at one end of the extension rod 22 far away from the supporting plate 21, and two ends of the first pushing rod 61 are vertically and fixedly connected with second pushing rods 62. One ends of the two second pushing rods 62 close to the second limiting ring 42 are circumferentially and fixedly connected with first friction plates 63, the second limiting ring 42 is circumferentially provided with second friction plates 64, and the first friction plates 63 and the second friction plates 64 are tightly abutted.

Referring to fig. 4, a sliding hole 24 is formed in the extension rod 22 along the length direction, and a mounting ring 25 is fixedly connected to one end of the extension rod 22 away from the support plate 21. The pulling structure 5 is arranged in the sliding hole 24, the pulling structure 5 comprises a pulling plate 51 which is slidably mounted in the sliding hole 24, a pulling rod 52 is fixedly connected to the pulling plate 51, one end, far away from the pulling plate 51, of the pulling rod 52 penetrates through the mounting ring 25, a pulling spring 53 is slidably sleeved on the pulling rod 52 between the mounting ring 25 and the pulling plate 51, one end of the pulling spring 53 is abutted against the pulling plate 51, and the other end of the pulling spring 53 is abutted against the mounting ring 25.

Positioning structures 7 are arranged on the pulling plate 51 and the extension rod 22, a concave hole 71 is formed in the pulling plate 51 along the length direction, and each positioning structure 7 comprises two universal balls 73 which are slidably mounted in the concave hole 71. A positioning spring 72 is further slidably disposed in the concave hole 71, two ends of the positioning spring 72 are both tightly abutted against a universal ball 73, and positioning grooves 74 for the universal ball 73 to sink into are disposed on inner walls of the sliding holes 24 on two sides of the pulling plate 51.

Referring to fig. 5, two ends of each of the two limiting rods 13 are provided with a locking structure 8, each locking structure 8 comprises two locking sleeves 81, each locking sleeve 81 is slidably sleeved on one limiting rod 13, and each locking sleeve 81 is located on the limiting rod 13 between the unwinding frame 11 and the arc-shaped ring 31. The two locking sleeves 81 are fixedly connected with locking rods 82, each locking rod 82 is in threaded connection with a locking bolt 83, each locking bolt 83 penetrates through the locking sleeve 81, and the tightening bolts 83 are tightly abutted to the limiting rods 13 in the locking sleeves 81. A cloth guard 84 is vertically and fixedly connected to the lock lever 82, and the cloth guard 84 is adjacent to the rotating roller 13.

The implementation principle of the uncoiling device of the uncoiling machine in the embodiment of the application is as follows:

the cloth is put into the unwinding frame 12, and the position of the cloth needs to be fixed. When the position of cloth is fixed, only the locking rod 82 needs to be pushed, the locking rod 82 drives the locking sleeve 81 to move along the limiting rod 13, and the movement of the locking rod 82 simultaneously drives the cloth baffle 84 to continuously move, so that the cloth baffle 84 is tightly abutted to the cloth. Subsequently, the tightening bolt is screwed, so that the locking bolt 84 continuously abuts against the stopper rod 13, thereby completing the fixing of the cloth position.

After the cloth position is fixed, the position of the cloth blocking rod 23 on the limiting rod 13 needs to be adjusted according to the length of the cloth. When the position of the cloth blocking rod 23 on the limiting rod 13 is adjusted, only the arc-shaped ring 31 needs to be pushed to move along the limiting rod 13, and the arc-shaped ring 31 drives the cloth blocking rod 23 to move through the supporting plate 21. After the position of the cloth stop bar 23 is adjusted, the position of the support plate 21 on the limiting rod 13 needs to be fixed. At this time, only the fixing nut 38 needs to be screwed, the fixing nut 38 moves towards the first mounting rod 33 along the fixing rod 34, and the fixing nut 38 drives the second mounting rod 36 to be close to the first mounting rod 33 through the fixing tube 37, so that the arc-shaped ring 31 hoops the limiting rod 13, thereby completing the position fixing of the supporting rod on the limiting rod 13.

After the position of the support rod on the limiting rod 13 is fixed, two second pushing rods 62 and the cloth blocking rod 23 need to be kept in a state of being separated from a tight state before the position of the cloth blocking rod 23 is adjusted. Only by pulling the first pushing rod 61, the movement of the first pushing rod 61 drives the two second pushing rods 62 to move along the extension rod 22 toward and away from the cloth blocking rod 23, and the pulling rod 52 drives the pulling plate 51 to move along the sliding hole 24, so that the positioning beads 73 sink into the positioning grooves 74, and the two second pushing rods 62 and the blocking rod are kept in a disengagement and tightening state. The movement of the pulling plate 51 drives the pulling spring 53 to move along the sliding hole 24 in a direction away from the cloth stop bar 23, so that the pulling spring 53 is in a compressed state.

After the two second pushing rods 62 and the cloth blocking rod 23 are separated from the tight abutting state, the position of the cloth blocking rod 23 can be adjusted. The cloth stop bar 23 forms a blocking effect for the cloth only by rotating the cloth stop bar 23. After the position adjustment of the cloth stopper bar 23 is completed, the first push rod 61 is pushed so that the positioning beads 73 are disengaged from the positioning grooves 74. Subsequently, the pulling plate 51 is constantly pushed by the elastic force of the pulling spring 53 returning to its deformation toward the cloth stopper bar 23. The pulling plate 51 drives the two second pushing rods 62 to approach the cloth blocking rod 23 through the pulling rod 52, the two second pushing rods 62 push the cloth blocking rod 23 to move towards the first limiting ring 41 along the extension rod 22, and the movement of the cloth blocking rod 23 drives the second limiting rod 13 to approach the first limiting rod 13, so that the first gear ring 43 and the second gear ring 44 are meshed with each other, and the position of the cloth blocking rod 23 is fixed.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (9)

1. The utility model provides an unwinding device of unwinder, includes frame (1), fixed unwinding frame (11) that is provided with on frame (1), it is provided with two live-rollers (12) that are used for bearing yardage roll to rotate on unwinding frame (11), it is provided with two gag lever posts (13) still to fix on unwinding frame (11), and two gag lever post (13) are located two the top of live-rollers (12), its characterized in that: every all be provided with on gag lever post (13) and keep off cloth structure (2), keep off cloth structure (2) and set up including sliding backup pad (21) on gag lever post (13), backup pad (21) are kept away from fixed extension rod (22) that is provided with on the lateral wall of unwinding frame (11) one side, it is provided with cloth-blocking pole (23) to rotate on extension rod (22), cloth-blocking pole (23) with be provided with limit structure (4) on backup pad (21).

2. An unwinding device of an unwinder as claimed in claim 1, characterized in that: the limiting structure (4) comprises a first limiting ring (41) fixedly arranged on the supporting plate (21), and the first limit ring (41) is fixedly sleeved on the extension rod (22), the limit structure (4) also comprises a second limit ring (42) fixedly arranged on the cloth blocking rod (23), and the second limit ring (42) is sleeved on the extension rod (22) in a sliding way, a first gear ring (43) is circumferentially and fixedly arranged on the side wall of one side of the first limiting ring (41) close to the second limiting ring (42), a second gear ring (44) is circumferentially and fixedly arranged on the side wall of the second limit ring (42) close to one side of the first limit ring (41), and the first ring gear (43) and the second ring gear (44) are meshed with each other, the extension rod (22) is provided with a pushing structure (6) used for pushing the first gear ring (43) and the second gear ring (44) to be meshed with each other.

3. An unwinding device of an unwinder as claimed in claim 2, characterized in that: the pushing structure (6) comprises first pushing rods (61), second pushing rods (62) are fixedly arranged at two ends of each first pushing rod (61), one end, far away from the first pushing rods (61), of each second pushing rod (62) is abutted against the second limiting ring (42), and a pulling structure (5) is arranged between the second pushing rods (62) on each first pushing rod (61).

4. An unwinding device of an unwinder as claimed in claim 3, characterized in that: the pulling structure (5) comprises a pulling rod (52) fixedly arranged on the first pushing rod (61), a sliding hole (24) is formed in the extension rod (22), a mounting ring (25) is fixedly arranged at one end, far away from the support plate (21), of the extension rod (22), the pulling rod (52) is in sliding fit with the sliding hole (24), and one end of the pulling rod (52) far away from the first pushing rod (61) is fixedly provided with a pulling plate (51), the pulling plate (51) is in sliding fit with the sliding hole (24), a pulling spring (53) is sleeved on the pulling rod (52) between the extension rod (22) and the pulling plate (51) in a sliding way, one end of the pulling spring (53) is tightly pressed against the pulling plate (51), and the other end of the pulling spring (53) is tightly pressed against the mounting ring (25).

5. An unwinding device of an unwinder as claimed in claim 4, characterized in that: one end of each of the two pushing rods (62) close to the second limiting ring (42) is circumferentially and fixedly provided with a first friction plate (63), the second limiting ring (42) is fixedly provided with a second friction plate (64), and the first friction plate (63) is tightly abutted against the second friction plate (64).

6. An unwinding device of an unwinder as claimed in claim 5, characterized in that: be provided with location structure (7) on dragging plate (51) and extension rod (22), shrinkage pool (71) have been seted up on dragging plate (51), it sets up two universal balls (73) to slide in shrinkage pool (71), it is provided with positioning spring (72) still to slide in shrinkage pool (71), positioning spring (72) both ends all with one universal ball (73) support tightly, and then seted up the confession on the inner wall of hole of sliding (24) constant head tank (74) that universal ball (73) sink into.

7. An unwinding device of an unwinder as claimed in claim 1, characterized in that: two all be provided with locking structure (8) on gag lever post (13), locking structure (8) include two lock sleeves (81), and the cover that all slides on every gag lever post (13) is equipped with one lock sleeve (81), two fixed lock rod (82) that are provided with on lock sleeve (81), fixed fender cloth board (84) that are provided with on lock rod (82), fender cloth board (84) are close to live-rollers (12).

8. An unwinding device of an unwinder as claimed in claim 7, characterized in that: every all be provided with locking bolt (83) on check lock lever (82), locking bolt (83) run through lock sleeve (81), just locking bolt (83) with gag lever post (13) in lock sleeve (81) support tightly.

9. An unwinding device of an unwinder as claimed in claim 1, characterized in that: the fixing structure (3) is arranged on the supporting plate (21), the fixing structure (3) comprises an arc-shaped ring (31) arranged on the supporting plate (21), the arc-shaped ring (31) is positioned at one end, close to the limiting rod (13), of the supporting plate (21), the arc-shaped ring (31) is sleeved on the limiting rod (13) in a sliding mode, a first mounting seat (32) is fixedly arranged at one end of the arc-shaped ring (31), a first mounting rod (33) is arranged on the first mounting seat (32) in a rotating and penetrating mode, a fixing rod (34) is fixedly arranged on the first mounting rod (33), a second mounting seat (35) is fixedly arranged at one end, far away from the first mounting seat (32), of the arc-shaped ring (31), a second mounting rod (36) is arranged on the second mounting seat (35) in a rotating and penetrating mode, a fixing pipe (37) is fixedly arranged on the second mounting rod (36) in a penetrating mode, the fixing rod (34) penetrates through the fixing pipe (37) in a sliding mode, and a fixing nut (38) is arranged at one end, far away from the first mounting rod (33), of the fixing rod (34).

Images