CN219566962U - Shaftless discharging unit - Google Patents

Abstract

The utility model discloses a shaftless unreeling unit which comprises a base, wherein unreeling frames are vertically arranged on two sides of the base, a turnover shaft is arranged between the two unreeling frames, two side cantilevers which move along the radial direction of the turnover shaft and are symmetrically arranged are arranged on the turnover shaft, clamping jaws for clamping reels are arranged on the inner sides of the two side cantilevers, unreeling rectifying mechanisms for controlling the unreeling frames to move along the radial direction of the reels are arranged at the bottoms of the unreeling frames, and reel clamping mechanisms for driving the side cantilevers to move oppositely are arranged below the turnover shaft.

Description

Shaftless discharging unit

Technical Field

The utility model belongs to the technical field of rewinders, and particularly relates to a shaftless discharging unit.

Background

At present, a large-roll-diameter roll material is used as a printing stock for printing an artificial board facing decoration material, the process comprises unreeling, printing, reeling and rewinding, the roll is borne on a reeling and unreeling unit of a gravure printing machine through an air inflation shaft, and the air inflation shaft drives the roll to rotate by a motor after air inflation is performed on the roll.

The existing rewinding machine is characterized in that the feeding of the existing rewinding machine is achieved by means of manually enabling an inflatable shaft to pass through a shaft hole of a whole winding drum material, then enabling two ends of the inflatable shaft to be placed on a feeding frame in a lifting mode through a manual vehicle, and then enabling the inflatable shaft to be fixed with the winding drum material through inflation of the inflatable shaft, so that feeding and receiving are achieved.

Because the industrial coiled materials such as artificial boards, home furnishings, floors, packaging, decoration and the like have large specification and wide width, the corresponding coiled material positioning air expansion shaft has large width and heavy weight, the manual labor intensity for loading and unloading the shaft by adopting the manual shaft is very high, and the machine parts are easy to damage; on the other hand, after the discharged paper tape enters the rewinder, the paper tape often deviates in the transmission process to influence the rewinder quality, and the existing correction roller is generally arranged at the feed inlet of the rewinder, however, in production, the paper tape is corrected only through the correction roller arranged at the feed inlet, and the paper tape is easily wrinkled in the translation process of the correction roller to influence the subsequent rewinder quality.

Disclosure of Invention

In order to solve the problems, the utility model provides the shaftless discharging unit which is reasonable in structure, does not need to frequently disassemble a shackle or an air inflation shaft, increases automatic production and greatly reduces the labor intensity, and can initially rectify paper tape before the paper tape enters a rewinder through a roll paper rectification mechanism arranged at the bottom of the shackle-free discharging unit, so that the paper tape is prevented from being wrinkled after entering the rewinder only through one-round rectification, and the discharging quality of the discharging unit is greatly improved.

The technical scheme provided by the utility model is as follows:

the shaftless discharging unit comprises a base, wherein two sides of the base are provided with vertically placed unreeling frames, a turnover shaft is arranged between the two unreeling frames, two side cantilevers which move along the radial direction of the turnover shaft and are symmetrically arranged are arranged on the turnover shaft, and clamping jaws for clamping a winding drum are respectively arranged on the inner sides of the two side cantilevers;

the bottom of the unreeling frame is provided with an unreeling deviation correcting mechanism for controlling the unreeling frame to move along the radial direction of the winding drum;

a reel clamping mechanism for driving the side cantilever to move oppositely is arranged below the turnover shaft.

Further, unreel rectifying mechanism is including setting up horizontal pole and the gyro wheel in unreeling frame bottom to and fix on the base and the high first power cylinder the same with the horizontal pole, the output and the horizontal pole fixed connection of first power cylinder are equipped with on the base with gyro wheel complex guide rail.

Further, the winding drum clamping mechanism comprises two second power cylinders symmetrically arranged on the overturning shaft, the output ends of the second power cylinders are connected to the inner sides of the side cantilevers, symmetrical sliding grooves are formed in the overturning shaft, and sliding blocks matched with the sliding grooves are arranged on the side cantilevers and used for limiting the side cantilevers.

Further, a third power cylinder is connected to the unreeling frame in a shaft mode, a supporting arm is fixed to the outer side of any side cantilever, the supporting arm extends to the end portion of the side cantilever, and the output end of the third power cylinder is connected to the end portion of the supporting arm in a shaft mode and used for driving the side cantilever to rotate around the overturning shaft.

Further, the clamping jaw is provided with a rotating shaft, and a magnetic powder clutch is arranged on the other side of the rotating shaft extending to the side cantilever.

Further, a roll paper motor is fixed on the side cantilever, a chain wheel connected with a rotating shaft is arranged on the outer side of the magnetic powder clutch, and the chain wheel is connected with the output end of the roll paper motor and used for controlling the rotation of the clamping jaw.

Further, two transition shafts which are coaxially arranged are arranged above the overturning shaft on the inner side of the unreeling frame, and transition rollers which are consistent with the width of the paper roll are arranged between the transition shafts.

Further, a fixed connecting shaft is arranged between the unreeling frames at two sides.

In summary, the beneficial effects of the utility model are as follows:

(1) According to the utility model, the paper winding drum is clamped by adopting the non-tandem type discharging unit and adopting the clamping jaw with the cam, when the winding drum rotates, the cam can prop against the inner wall of the winding drum under the action of centrifugal force, so that the winding drum is clamped, the stability during unreeling is ensured, the tandem shaft or the air expansion shaft is not required to be frequently detached, the automatic production is increased, and meanwhile, the labor intensity of the physical labor is greatly reduced.

(2) According to the utility model, the side cantilever which can move back and forth along the radial direction of the turnover shaft is arranged, so that the chuck is driven to extend into or withdraw from the winding drum, clamping or releasing of the winding drum is realized, the winding drum is applicable to paper winding drums with different widths, and the application range of the winding drum is greatly improved.

(3) The unreeling deviation correcting mechanism is arranged at the bottom of the unreeling machine without the tandem axle, and can primarily correct the paper tape before the paper tape enters the rewinder, so that the paper tape is prevented from being folded only through one-round deviation correction after the paper tape enters the rewinder, and the unreeling quality of the unreeling machine is greatly improved.

(4) The magnetic powder clutches are arranged on the two sides of the clamping jaw, so that the rotating shaft can be prevented from rotating too fast during unreeling, the tension of the paper tape can be controlled, meanwhile, the rotating shaft and the clamping jaw are controlled to rotate through rack transmission, the rotating power can be provided for the clamping jaw, the functionality of the unreeling machine set is improved, and the feeding machine set is suitable for popularization and application.

Drawings

FIG. 1 is a schematic diagram of a front view structure of the present utility model;

FIG. 2 is a schematic view of a left-hand cross-sectional structure of the present utility model;

FIG. 3 is a schematic top view of the present utility model;

fig. 4 is a schematic diagram of the structure of the winding motor and magnetic powder clutch of the utility model.

The reference numerals are as follows:

1. a base; 2. unreeling rack; 3. a turnover shaft; 4. a side cantilever; 5. a clamping jaw; 6. a third power cylinder; 7. a roll paper motor; 8. a transition shaft; 9. a fixed connecting shaft; 21. a cross bar; 22. a roller; 23. a first power cylinder; 24. a guide rail; 31. a second power cylinder; 32. a chute; 51. a rotation shaft; 52. a magnetic powder clutch; 53. a sprocket; 81. and (5) a transition roller.

Detailed Description

The present utility model will be further described in detail with reference to the following examples, which are only for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.

Referring to fig. 1-3, a shaftless discharging unit comprises a base 1, wherein two sides of the base 1 are provided with vertically placed unreeling frames 2, a turnover shaft 3 is arranged between the two unreeling frames 2, two side cantilevers 4 which move radially along the turnover shaft 3 and are symmetrically arranged are arranged on the turnover shaft 3, and clamping claws 5 for clamping a winding drum are respectively arranged on the inner sides of the two side cantilevers 4;

specifically, in this embodiment, the base 1 is fixed on the ground by a screw and a nut, so as to ensure the stability of the base 1, the unreeling frame 2 is a hollow metal box, and is used for supporting a turnover shaft 3 arranged between the two unreeling frames 2, an operation control device is placed in the unreeling frame 2, the side cantilever 4 is movably fixed on the turnover shaft 3, and the side cantilever is used for clamping a reel along with the rotation adjustment angle of the turnover shaft 3;

the diameter of clamping jaw 5 is slightly less than the internal diameter of reel, and clamping jaw 5 inserts in the reel and is used for fixed reel, in this embodiment, is equipped with a plurality of cam on the clamping jaw 5, and when the reel takes place to rotate, the cam can support the reel inner wall under the effect of centrifugal force, realizes the centre gripping to the reel, guarantees the stability when unreeling.

Further, a reel clamping mechanism for driving the side cantilever 4 to move oppositely is arranged below the overturning shaft 3;

specifically, the side cantilevers 4 are fixed on the turnover shaft 3 in a limiting manner and can move along the turnover shaft 3 in the radial direction for clamping the winding drum, the maximum distance between the two side cantilevers 4 is larger than the width of the winding drum, and the minimum distance can be adapted to winding drums with different widths according to actual production requirements.

Further, the bottom of the unreeling frame 2 is provided with an unreeling deviation correcting mechanism for controlling the unreeling frame 2 to move along the radial direction of the winding drum;

specifically, the unreeling deviation correcting mechanism is a moving mechanism for driving the unreeling frame 2 to move along the radial direction of the winding drum, is arranged at the bottom of the unreeling frame 2, monitors the transmission track of the paper tape in real time according to the sensor, compares the transmission track with corresponding target track data, judges that deviation occurs if the data are inconsistent, and controls the unreeling frame 2 to drive the unreeling unit to move transversely integrally by the unreeling deviation correcting mechanism, so that deviation correcting operation is carried out on the paper tape in conveying, and the rewinding quality of the paper tape is ensured.

In a preferred embodiment, the unreeling deviation correcting mechanism comprises a cross rod 21 and a roller 22 which are arranged at the bottom of the unreeling frame 2, and a first power cylinder 23 which is fixed on the base 1 and has the same height as the cross rod 21, wherein the output end of the first power cylinder 23 is fixedly connected with the cross rod 21, and a guide rail 24 matched with the roller 22 is arranged on the base 1.

Specifically, the horizontal pole 21 sets up between two unreels 2, connect two unreels 2, make horizontal pole 21 upper portion equipment form an organic wholely, gyro wheel 22 sets up in horizontal pole 21 or unreels 2 bottoms, and can drive equipment along the radial removal of roll-over shaft 3 on the guide rail 24 on base 1, first power cylinder 23 is servo electricity push cylinder, first power cylinder 23 passes through the mounting bracket to be fixed on base 1, guarantee highly the same with horizontal pole 21, first power cylinder 23 transversely sets up, first power cylinder 23's output and horizontal pole 21 fixed connection, first power cylinder 23's output can drive horizontal pole 21 that is horizontal pole 21 upper portion equipment along roll-over shaft 3 radial movement, just can realize the operation of rectifying a deviation to the paper tape before the paper tape gets into the rewinding machine.

Further, the reel clamping mechanism comprises two second power cylinders 31 symmetrically arranged on the turnover shaft 3, the output ends of the second power cylinders 31 are connected to the inner side of the side cantilevers 4, symmetrical sliding grooves 32 are formed in the turnover shaft 3, and sliding blocks matched with the sliding grooves 32 are arranged on the side cantilevers 4 and used for limiting the side cantilevers 4.

Specifically, two second power cylinders 31 are transversely installed on the turnover shaft through the mounting plate, the output ends of the two second power cylinders 31 are respectively connected to the inner sides of corresponding side cantilevers 4, the two second power cylinders 31 are arranged in a staggered mode, on one hand, the inner space can be saved, on the other hand, the moving path of the side cantilevers 4 can be increased, the sliding chute 32 is used for limiting the side cantilevers 4, the side cantilevers 4 can only move in the radial direction of the sliding chute 32 relative to the turnover shaft 3, the maximum distance between the two side cantilevers 4 is larger than the width of a winding drum, and the minimum distance can be matched with winding drums with different widths according to actual production requirements.

Further, a third power cylinder 6 is connected to the unreeling frame 2 in a shaft way, a supporting arm 61 is fixed to the outer side of any side cantilever 4, the supporting arm 61 extends to the end part of the side cantilever 4, and the output end of the third power cylinder 6 is connected with the end part of the supporting arm 61 in a shaft way and used for driving the side cantilever 4 to rotate around the overturning shaft 3.

Specifically, the third power cylinder 6 is a hydraulic cylinder, is axially connected to the side wall of the unreeling frame 2, is axially connected to the support arm 61, pushes the side cantilever 4 to rotate around the turning shaft 3 through the support arm 61 fixed to the side cantilever 4, is coaxially arranged with the side cantilever 4, is also fixed to the outer side of the side cantilever 4, and synchronously rotates with the side cantilever 4.

Referring to fig. 3-4, as a further optimized embodiment, the clamping jaw 5 is provided with a rotation shaft 51, and the other side of the rotation shaft 51 extending to the side cantilever 4 is provided with a magnetic powder clutch 52.

Specifically, the clamping jaw 5 is rotatably connected to the side cantilever 4 through a rotating shaft 51, and a magnetic powder clutch 52 on the other side of the side cantilever 4 is arranged on the rotating shaft 51 to control the rotating speed of the rotating shaft 51, so that the rotating shaft 51 is prevented from rotating too fast to affect the tension of the paper tape during unreeling.

Further, a roll paper motor 7 is fixed on the side cantilever 4, a sprocket 53 connected with a rotating shaft 51 is arranged on the outer side of the magnetic powder clutch 52, and the sprocket 53 is connected with the output end of the roll paper motor 7 and used for controlling the rotation of the clamping jaw 5.

Specifically, the two side cantilevers 4 are provided with the coil paper motor 7 through the mounting plate, the coil paper motor 7 is used for providing power for the clamping jaw 5 and the rotating shaft 51, the output end of the coil paper motor 7 is communicated to the sprocket 53 on the outer side of the magnetic powder clutch 52 through rack transmission, the clamping jaw 5 is controlled to drive the winding drum to rotate, and preferably, the outer side of the rack transmission structure is wrapped with the baffle 54.

Further, two transition shafts 8 coaxially arranged are arranged above the overturning shaft 3 on the inner side of the unreeling frame 2, and transition rollers 81 consistent with the width of the paper roll are arranged between the transition shafts 8.

Specifically, the overroller 81 is free to rotate about its axis for overfeeding the web, overfeeding the web before it enters the rewinder, ensuring the tension of the web.

Further, a fixed connecting shaft 9 is arranged between the unreeling frames 2 at two sides.

Specifically, the fixing connecting shaft 9 is horizontally fixed between the two unreeling frames 2, and is used for reinforcing the two unreeling frames 2.

The working principle of the utility model is as follows:

firstly, a paper roll is transported to one side of a shaftless discharging unit through an unmanned vehicle or an elevator, a third power cylinder 6 is started to drive two side cantilevers 4 to rotate and adjust to a proper height, then two second power cylinders 31 are synchronously started to push the side cantilevers 4 to two sides, then the paper roll is placed between two clamping jaws 5, the two second power cylinders 31 are synchronously retracted to tighten the side cantilevers 4 inwards, the clamping jaws 5 extend into a winding drum, and clamping of the paper roll is realized; the third cylinder 6 is then activated continuously to raise the roll to the proper height and the web passes over the overroller 81 for unreeling.

The belt transmission track is monitored in real time according to the position sensor at the unreeling side, the belt transmission track is compared with corresponding target track data, if the data are inconsistent, the belt transmission track is judged to deviate, at the moment, the first power cylinder 23 is started to extend or retract according to the real-time monitoring data, the unreeling frame 2 is driven to integrally and transversely move, so that deviation correction operation is carried out on the paper belt in conveying, and the rewinding quality of the paper belt is ensured.

It should be noted that, in the drawings or the description, the implementation manner not shown or described is a manner known to those of ordinary skill in the art, and is not described in detail, and the above definitions of the elements and the methods are not limited to the specific structures, shapes or manners mentioned in the embodiments.

It should be noted that, in the embodiments, directional terms such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc. refer to the directions of the drawings only, and are not intended to limit the scope of the present utility model.

While the foregoing description illustrates and describes the preferred embodiments of the present utility model, as noted above, it is to be understood that the utility model is not limited to the forms disclosed herein but is not to be construed as excluding other embodiments, and that various other combinations, modifications and environments are possible and may be made within the scope of the inventive concepts described herein, either by way of the foregoing teachings or by those of skill or knowledge of the relevant art. And that modifications and variations which do not depart from the spirit and scope of the utility model are intended to be within the scope of the appended claims.

Claims (8)

1. The shaftless discharging unit comprises a base (1), and is characterized in that two sides of the base (1) are provided with vertically placed unreeling frames (2), a turnover shaft (3) is arranged between the two unreeling frames (2), two side cantilevers (4) which move radially along the turnover shaft (3) and are symmetrically arranged are arranged on the turnover shaft (3), and clamping jaws (5) for clamping a winding drum are arranged on the inner sides of the two side cantilevers (4);

the bottom of the unreeling frame (2) is provided with an unreeling deviation correcting mechanism for controlling the unreeling frame (2) to move along the radial direction of the winding drum;

and a reel clamping mechanism for driving the side cantilever (4) to move oppositely is arranged below the overturning shaft (3).

2. The shaftless discharging unit according to claim 1, wherein the discharging deviation rectifying mechanism comprises a cross rod (21) and a roller (22) which are arranged at the bottom of the discharging frame (2), and a first power cylinder (23) which is fixed on the base (1) and has the same height as the cross rod (21), the output end of the first power cylinder (23) is fixedly connected with the cross rod (21), and a guide rail (24) matched with the roller (22) is arranged on the base (1).

3. The shaftless discharging unit according to claim 1, wherein the reel clamping mechanism comprises two second power cylinders (31) symmetrically arranged on the overturning shaft (3), the output ends of the second power cylinders (31) are connected to the inner side of the side cantilevers (4), symmetrical sliding grooves (32) are formed in the overturning shaft (3), and sliding blocks matched with the sliding grooves (32) are arranged on the side cantilevers (4) and used for limiting the side cantilevers (4).

4. A shaftless discharging unit according to claim 3, wherein a third power cylinder (6) is connected to the discharging frame (2) in a shaft mode, a supporting arm (61) is fixed to the outer side of any side cantilever (4), the supporting arm (61) extends to the end portion of the side cantilever (4), and an output end of the third power cylinder (6) is connected with the end portion of the supporting arm (61) in a shaft mode to drive the side cantilever (4) to rotate around the overturning shaft (3).

5. A shaftless blanking unit according to claim 1, characterized in that the clamping jaw (5) is provided with a rotation shaft (51), and that the rotation shaft (51) extends to the other side of the side cantilever (4) and is provided with a magnetic powder clutch (52).

6. The shaftless discharging unit according to claim 5, wherein a roll paper motor (7) is fixed on the side cantilever (4), a sprocket (53) connected with a rotating shaft (51) is arranged on the outer side of the magnetic powder clutch (52), and the sprocket (53) is connected with the output end of the roll paper motor (7) for controlling rotation of the clamping jaw (5).

7. A shaftless discharge unit according to claim 1, characterized in that the inner side of the unreeling frame (2) is provided with two coaxially arranged transition shafts (8) above the turning shaft (3), between which transition shafts (8) transition rolls (81) are arranged, which correspond to the width of the paper roll.

8. The shaftless discharging unit according to claim 6, wherein a fixed connecting shaft (9) is arranged between the two side discharging frames (2).