CN213084855U

CN213084855U - Tension adjusting mechanism of rewinding machine and rewinding machine thereof

Info

Publication number: CN213084855U
Application number: CN202021909877.XU
Authority: CN
Inventors: 李吉青
Original assignee: Dongguan Guangquan Electronic Technology Co ltd
Current assignee: Dongguan Guangquan Electronic Technology Co ltd
Priority date: 2020-09-03
Filing date: 2020-09-03
Publication date: 2021-04-30
Anticipated expiration: 2030-09-03

Abstract

The utility model provides a tension adjusting mechanism of rewinding machine, including pivot and the axle sleeve of cover locating outside the pivot, be equipped with tension adjusting assembly in the pivot, tension adjusting assembly includes friction piece and the adjusting nut of control friction piece and axle sleeve abutting pressure contact, adjusting nut is screwed with the pivot and is connected, the tension adjusting mechanism can adjust the tension size of label area wantonly; the utility model also provides a rewinding machine, including the frame, be equipped with first pivot, first axle sleeve, second pivot and second axle sleeve in the frame, first pivot and second pivot all are equipped with tension adjusting part, are equipped with first one-way bearing and the one-way bearing of third in the first pivot, are equipped with the one-way bearing of second and the one-way bearing of fourth in the second pivot, and first one-way bearing and the one-way bearing of second pass through the hold-in range and are connected with the drive wheel on the motor, and this rewinding machine can realize the forward and reverse rolling function of two-way double drive with the single motor.

Description

Tension adjusting mechanism of rewinding machine and rewinding machine thereof

Technical Field

The utility model relates to a receive and release coil stock equipment and some rewinding equipment technical field, concretely relates to tension adjustment mechanism of rewinding machine and rewinding machine thereof.

Background

The label rewinding machine is used for winding a label tape from one rotating shaft to the other rotating shaft, rewinding is completed, and other functions (such as point number, length calculation, printing and spray printing, appearance/quality detection, code reading and writing and the like) are completed in rewinding in an expanding mode. The existing rewinding machine mainly adopts a magnetic powder clutch structure to realize the adjustment of the tension, however, the structure is complex, the manufacturing cost is high, and meanwhile, two motors are needed to respectively drive the first rotating shaft and the second rotating shaft to rotate, so that the equipment volume is large.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the disappearance that prior art exists, provide a tension adjustment mechanism of rewinding machine and rewinding machine thereof, its tension size that can adjust the label area wantonly, simple structure, it is easy and simple to handle, small, low in manufacturing cost, can forward rolling also can reverse rolling.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the tension adjusting mechanism of the rewinding machine comprises a rotating shaft and a shaft sleeve, wherein the rotating shaft is sleeved with the rotating shaft, the rotating shaft can drive the rotating shaft sleeve to rotate, a tension adjusting assembly is arranged on the rotating shaft and comprises a friction piece and an adjusting nut, the adjusting nut is used for controlling the friction piece to be in abutting contact with the shaft sleeve, an external thread corresponding to an internal thread of the adjusting nut is arranged on the rotating shaft, and the adjusting nut is movably connected with the rotating shaft through screwing of the internal thread and the external thread.

As a preferred scheme, the friction piece is a friction plate, the friction plate is sleeved on the rotating shaft, a limiting groove extending along the axial direction of the rotating shaft is formed in the outer surface of the rotating shaft, a limiting block corresponding to the limiting groove is arranged on the friction plate, and one end of the limiting block extends into the limiting groove.

As a preferable scheme, the friction plates include a first friction plate and a second friction plate, the first friction plate and the second friction plate are respectively located at two ends of the shaft sleeve, and the adjusting nut is located on one side of the first friction plate.

As a preferable scheme, a return spring which enables the first friction plate to always have the tendency of pressing and contacting towards the shaft sleeve is sleeved on the rotating shaft between the adjusting nut and the first friction plate.

As a preferred scheme, friction rings are arranged between the first friction plate and the shaft sleeve, the second friction plate and the shaft sleeve are provided with annular mounting grooves matched with the friction rings.

As a preferable scheme, two ends of the shaft sleeve are respectively provided with a containing groove capable of containing the first friction plate and the second friction plate, the two friction rings are arranged at the bottom of the corresponding containing groove, and one end of the rotating shaft extends into the first containing groove to be screwed with the adjusting nut.

A rewinding machine comprises a rack, wherein a first rotating shaft, a second rotating shaft and a motor for driving the first rotating shaft or the second rotating shaft to rotate are arranged on the rack, a first synchronous belt pulley is arranged on the first rotating shaft and connected with the first rotating shaft through a first one-way bearing, a second synchronous belt pulley is arranged on the second rotating shaft and connected with the second rotating shaft through a second one-way bearing, the first synchronous belt pulley and the second synchronous belt pulley are connected with a driving wheel on the motor through a synchronous belt, the first rotating shaft is arranged on the rack through a third one-way bearing, the second rotating shaft is arranged on the rack through a fourth one-way bearing, the rotating directions of the first one-way bearing and the second one-way bearing are opposite, the rotating directions of the third one-way bearing and the fourth one-way bearing are opposite, and the rotating directions of the first one-way bearing and the third one-way bearing are opposite, the tension adjusting device is characterized in that a first shaft sleeve is sleeved on the first rotating shaft, a second shaft sleeve is sleeved on the second rotating shaft, and the tension adjusting assembly is arranged on the first rotating shaft and the second rotating shaft.

As a preferred scheme, a first material blocking plate is arranged on the first shaft sleeve, and a second material blocking plate is arranged on the second shaft sleeve.

Compared with the prior art, the utility model has the obvious advantages and beneficial effects, particularly,

1. the shaft sleeve, the friction piece and the adjusting nut for controlling the friction piece to be in abutting contact with the shaft sleeve are arranged on the rotating shaft, the adjusting nut is in threaded connection with the rotating shaft, the friction force between the friction piece and the shaft sleeve is adjusted by rotating the position of the adjusting nut, and the rotation resistance of the shaft sleeve is changed, so that the tension of the label tape can be adjusted at will, and the label tape tension adjusting device is simple in structure, convenient to operate, stable in operation, small in size and low in manufacturing cost;

2. by arranging a first rotating shaft, a second rotating shaft and a motor on a rack, wherein the first rotating shaft and the second rotating shaft are respectively provided with a first synchronous belt pulley and a second synchronous belt pulley, the first synchronous belt pulley and the second synchronous belt pulley are respectively connected with the first rotating shaft and the second rotating shaft through a first one-way bearing and a second one-way bearing, the first rotating shaft and the second rotating shaft are respectively arranged on the rack through a third one-way bearing and a fourth one-way bearing, the rotating directions of the first one-way bearing and the second one-way bearing are opposite, the rotating directions of the third one-way bearing and the fourth one-way bearing are opposite, and the rotating directions of the first one-way bearing and the third one-way bearing are opposite, thereby realize that single motor drive first pivot carries out forward rolling, also can drive the second pivot and carry out reverse rolling, the structure sets up simply rationally, can reduce equipment volume, saves the cost, does benefit to and uses widely.

To more clearly illustrate the structural features and technical means of the present invention and the specific objects and functions achieved thereby, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments:

drawings

Fig. 1 is a schematic view of an assembly structure of a tension adjusting mechanism of a rewinding machine according to the present invention;

FIG. 2 is a side view of the tension adjusting mechanism of the rewinding machine of the present invention;

FIG. 3 is a schematic cross-sectional view taken at A-A in FIG. 2;

FIG. 4 is a schematic structural view of a first friction plate according to the present invention;

FIG. 5 is a schematic view of the assembly structure of the rewinding machine of the present invention;

fig. 6 is a schematic view of another perspective structure of the rewinding machine of the present invention.

The attached drawings indicate the following:

10-a rotating shaft; 11-a limiting groove; 12-a ball bearing;

13-adjusting the nut; 14-a gasket; 15-a return spring;

16 — a first friction plate; 161-a limiting block; 17-a second friction plate;

18-a friction ring; 19-a clamp spring; 20-shaft sleeve;

201-a receiving groove; 21-a buffer plate; 22-a first synchronous pulley;

22' -a second synchronous pulley; 23-a first one-way bearing; 23' -a second one-way bearing;

24-a third one-way bearing; 24' -a fourth one-way bearing; 30-a frame;

31-a first shaft; 32-a first sleeve; 33-a first material blocking disc;

33' -a second catch tray; 34-a second rotating shaft; 35-a second bushing;

36-a motor; 37-a synchronous belt; 38-label tape.

Detailed Description

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the indicated position or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.

As shown in fig. 1 to 4, a tension adjusting mechanism of a rewinding machine includes a rotating shaft 10 and a shaft sleeve 20 sleeved outside the rotating shaft 10 and driven by the rotating shaft 10 to rotate, the shaft sleeve 20 is connected to the rotating shaft 10 through a ball bearing 12, three buffer plates 21 are annularly distributed on the outer surface of the shaft sleeve 20, a tension adjusting assembly is arranged on the rotating shaft 10, the tension adjusting assembly includes a friction member and an adjusting nut 13 for controlling the friction member to contact with the shaft sleeve 20 in a pressing manner, an external thread corresponding to the internal thread of the adjusting nut 13 is arranged on the rotating shaft 10, and the adjusting nut 13 is movably connected to the rotating shaft 10 through the screwing of the internal thread and the external thread.

The friction piece is a friction piece, the friction piece is sleeved on the rotating shaft 10, a limiting groove 11 extending along the axial direction of the rotating shaft 10 is arranged on the outer surface of the rotating shaft 10, a limiting block 161 corresponding to the limiting groove 11 is arranged on the friction piece, one end of the limiting block 161 extends into the limiting groove 11, the friction piece comprises a first friction piece 16 and a second friction piece 17, the first friction piece 16 and the second friction piece 17 are respectively arranged at two ends of a shaft sleeve 20, an adjusting nut 13 is arranged at one side of the first friction piece 16, a return spring 15 enabling the first friction piece 16 to always have a pressing contact trend towards the shaft sleeve 20 is sleeved on the rotating shaft 10 between the adjusting nut 13 and the first friction piece 16, a gasket 14 is arranged between the adjusting nut 13 and the return spring 15, two ends of the return spring 15 are respectively in pressing contact with the gasket 14 and the first friction piece 16, friction rings 18 are respectively arranged between the first friction piece 16 and the shaft sleeve 20 and the second friction piece 17, one side of the second friction plate 17 opposite to the friction ring 18 is provided with a clamp spring 19, the shaft sleeve 20 is provided with an annular mounting groove (not shown) matched with the friction ring 18, two ends of the shaft sleeve 20 are respectively provided with a containing groove 201 capable of containing the first friction plate 16 and the second friction plate 17, the two friction rings 18 are arranged at the bottoms of the corresponding containing grooves 201, and one end of the rotating shaft 10 extends into the first containing groove 201 to be screwed with the adjusting nut 13.

It should be noted that, in the present invention, the friction ring 18 may be replaced by a plurality of friction protrusions.

The working principle of the tension adjusting mechanism of the rewinding machine is as follows: the adjusting nut 13 is tightened to increase the friction force between the friction plate and the friction ring 18 and increase the rotation resistance of the sleeve 20, so that the tension of the label tape 38 is increased, otherwise, the adjusting nut 13 is loosened to decrease the friction force between the friction plate and the friction ring 18 and decrease the rotation resistance of the sleeve 20, so that the tension of the label tape 38 is decreased, and the function of stepless tension adjustment can be realized.

How to 1-6 show, the utility model also provides a rewinding machine, including the frame 30, be equipped with first pivot 31, second pivot 34 and drive first pivot 31 or the pivoted motor 36 of second pivot 34 on the frame 30, be equipped with first synchronous pulley 22 on the first pivot 31, first synchronous pulley 22 is connected with first pivot 31 through first one way bearing 23, be equipped with second synchronous pulley 22 'on the second pivot 34, second synchronous pulley 22' is connected with second pivot 34 through second one way bearing 23 ', first synchronous pulley 22 and second synchronous pulley 22' are connected with the drive wheel on the motor 36 through synchronous belt 37, first pivot 31 is installed on frame 30 through third one way bearing 24, second pivot 34 is installed on frame 30 through fourth one way bearing 24 ', the rotation direction of first one way bearing 23 and second one way bearing 23' is opposite, the third one-way bearing 24 and the fourth one-way bearing 24 'have opposite rotating directions, the first one-way bearing 23 and the third one-way bearing 24 have opposite rotating directions, the first rotating shaft 31 is sleeved with the first shaft sleeve 32, the second rotating shaft 34 is sleeved with the second shaft sleeve 35, the first rotating shaft 31 and the second rotating shaft 34 are provided with the tension adjusting assembly, and the first one-way bearing 23 and the second one-way bearing 23' are respectively arranged on the first rotating shaft 31 and the second rotating shaft 34, so that the first rotating shaft 31 and the second rotating shaft 34 can share one motor 36 to freely change the winding and unwinding roles, namely the second rotating shaft 34 is a winding shaft when the first rotating shaft 31 is a winding shaft; on the contrary, when the second rotating shaft 34 is a winding shaft, the first rotating shaft 31 is an unwinding shaft.

The label tape comprises a first shaft sleeve 32, a second shaft sleeve 35 and a label tape 33, wherein the first shaft sleeve 32 is provided with a first material blocking disc 33, the second shaft sleeve 35 is provided with a second material blocking disc 33 ', the axes of the first material blocking disc 33 and the second material blocking disc 33 ' are inclined at a certain angle with the horizontal plane, and the first material blocking disc 33 and the second material blocking disc 33 ' move along with the first shaft sleeve 32 and the second shaft sleeve 35 respectively, so that the label tape 38 can rotate synchronously in a retracting mode.

The working principle of the rewinding machine is as follows:

and (3) forward winding process: the motor 36 drives the synchronous belt 37 to drive the first synchronous belt pulley 22 and the second synchronous belt pulley 22 ' to rotate in the forward direction, the first one-way bearing 23 drives the first rotating shaft 31 to rotate, the third one-way bearing 24 is in a slipping state relative to the first rotating shaft 31, the first rotating shaft 31 drives the friction plate to rotate, the friction plate is matched with the friction ring 18 to drive the first shaft sleeve 32 to rotate, so that the first shaft sleeve 32 is actively wound, meanwhile, the second one-way bearing 23 ' is in a slipping state relative to the second rotating shaft 34, the fourth one-way bearing 24 ' clamps the second rotating shaft 34 to prevent the second rotating shaft 34 from rotating, and the second shaft sleeve 35 rotates relative to the second rotating shaft 34, namely the second shaft sleeve is passively unwound;

and (3) reverse winding process: in contrast to the forward winding process, the motor 36 drives the timing belt 37 to drive the first and second timing pulleys 22 and 22' to rotate in opposite directions, the second shaft sleeve 35 is actively wound, and the first shaft sleeve 32 is passively unwound.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, so any modifications, equivalent replacements, improvements, etc. made to the above embodiments by the technology of the present invention are all within the scope of the technical solution of the present invention.

Claims

1. The tension adjusting mechanism of the rewinding machine is characterized by comprising a rotating shaft and a shaft sleeve, wherein the shaft sleeve is sleeved outside the rotating shaft and can be driven to rotate by the rotating shaft, a tension adjusting assembly is arranged on the rotating shaft and comprises a friction piece and an adjusting nut, the adjusting nut controls the friction piece to be in abutting contact with the shaft sleeve, an external thread corresponding to an internal thread of the adjusting nut is arranged on the rotating shaft, and the adjusting nut is movably connected with the rotating shaft through screwing of the internal thread and the external thread.

2. A tension adjusting mechanism of a rewinding machine as claimed in claim 1, characterized in that said friction member is a friction plate, said friction plate is sleeved on the rotating shaft, a limiting groove extending along the axial direction of the rotating shaft is provided on the outer surface of the rotating shaft, a limiting block corresponding to the limiting groove is provided on the friction plate, and one end of the limiting block extends into the limiting groove.

3. The tension adjusting mechanism of a rewinding machine as claimed in claim 2, characterized in that said friction plates comprise a first friction plate and a second friction plate, said first friction plate and said second friction plate being located at the two ends of the sleeve, respectively, said adjusting nut being located at one side of the first friction plate.

4. A tension adjusting mechanism of a rewinding machine as claimed in claim 3, characterized in that a return spring is provided on the shaft between the adjusting nut and the first friction plate to keep the first friction plate in a pressing contact with the sleeve.

5. A tension adjustment mechanism of a rewinding machine as claimed in claim 3, characterized in that friction rings are provided between the first and second friction plates and the sleeve, and the sleeve is provided with annular mounting grooves adapted to the friction rings.

6. The tension adjusting mechanism of a rewinding machine as claimed in claim 5, wherein the two ends of the sleeve are respectively provided with a receiving groove for receiving the first friction plate and the second friction plate, the two friction rings are disposed at the bottom of the corresponding receiving grooves, and one end of the rotating shaft is inserted into the first receiving groove and is screwed with the adjusting nut.

7. A rewinding machine is characterized by comprising a frame, wherein the frame is provided with a tension adjusting mechanism as claimed in any one of claims 1 to 6, the frame is provided with a first rotating shaft, a second rotating shaft and a motor for driving the first rotating shaft or the second rotating shaft to rotate, the first rotating shaft is provided with a first synchronous belt pulley, the first synchronous belt pulley is connected with the first rotating shaft through a first one-way bearing, the second rotating shaft is provided with a second synchronous belt pulley, the second synchronous belt pulley is connected with the second rotating shaft through a second one-way bearing, the first synchronous belt pulley and the second synchronous belt pulley are connected with a driving wheel on the motor through a synchronous belt, the first rotating shaft is arranged on the frame through a third one-way bearing, the second rotating shaft is arranged on the frame through a fourth one-way bearing, and the rotating directions of the first one-way bearing and the second one-way bearing are opposite, the rotation direction of the third one-way bearing is opposite to that of the fourth one-way bearing, the rotation direction of the first one-way bearing is opposite to that of the third one-way bearing, the first rotating shaft is sleeved with a first shaft sleeve, and the second rotating shaft is sleeved with a second shaft sleeve.

8. A rewinding machine as claimed in claim 7, characterized in that said first hub is provided with a first stop, and said second hub is provided with a second stop.