CN216189795U

CN216189795U - Cantilever type tension automatic regulating apparatus

Info

Publication number: CN216189795U
Application number: CN202122740544.XU
Authority: CN
Inventors: 张新海
Original assignee: Nanjing Xinyang Intelligent Technology Co ltd
Current assignee: Nanjing Xinyang Intelligent Technology Co ltd
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2022-04-05
Anticipated expiration: 2031-11-10

Abstract

The utility model discloses a cantilever type tension automatic adjusting device, which comprises a paper roll bracket and a paper roll shaft, wherein the paper roll shaft penetrates through one end of the rear side of the paper roll bracket and is fixedly sleeved with a positioning sleeve; the front side surface of the paper roll support is fixedly provided with a first supporting rod and a second supporting rod, the first supporting rod is rotatably provided with a first steering roller and a second steering roller, the second supporting rod is rotatably provided with a third steering roller, and wrapping paper is wound out of the paper roll and then sequentially bypasses the first steering roller, the tensioning roller, the second steering roller and the third steering roller to enter the traction mechanism. The tension control device has the advantages of simple structure and low manufacturing cost, and can ensure that the packaging machine does not need to be manually adjusted when in work, thereby obtaining stable tension control.

Description

Cantilever type tension automatic regulating apparatus

Technical Field

The utility model relates to the technical field of tension adjustment, in particular to a cantilever type automatic tension adjusting device.

Background

The existing straw packaging machine generally adopts a roll type packaging material (film or paper) to package straws, when the packaging machine works, the tension of the packaging material can be continuously changed along with the change of the diameter of a roll, and the running speed of a paper roll or a film roll must be adjusted in real time to obtain stable tension, so that the packaging material is effectively controlled in tension. The existing tension control devices are roughly classified into two types, one is a manual tension adjusting device, the other is a full-automatic tension control device which is formed by depending on a tension sensor and a special controller, and the manual tension adjusting device is high in labor intensity and low in production efficiency; and a full-automatic tension control device is adopted, so that the structure is complex and the realization cost is high.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a cantilever type automatic tension adjusting device.

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

a cantilever type automatic tension adjusting device comprises a paper roll support and a paper roll shaft, wherein a positioning sleeve is fixedly sleeved at one end, which rotatably penetrates through the rear side face of the paper roll support, of the paper roll shaft, a fixing rod and a cantilever shaft are fixedly installed on the rear side face of the paper roll support, a rotating sleeve is rotatably installed on the cantilever shaft, one end of a belt is fixed on the fixing rod, the other end of the belt is fixed on the left circumferential side wall of the rotating sleeve after upwards and clockwise bypassing the positioning sleeve, one end of a cantilever rod is fixed on the rotating sleeve, the other end of the cantilever rod freely extends in the direction far away from a paper roll along the vertical surface, and a tensioning roller is rotatably installed at the free end of the cantilever rod; a first supporting rod and a second supporting rod are fixedly installed on the front side face of the paper roll support, a first steering roller and a second steering roller are rotatably installed on the first supporting rod from right to left, the first steering roller and the second steering roller are located on two sides above the tensioning roller, a third reversing roller is rotatably installed on the second supporting rod, and the third reversing roller is located below the tensioning roller and on the left side of the second steering roller; the wrapping paper is in turn wound out from the paper roll, anticlockwise winds the first steering roller, clockwise winds the tensioning roller, anticlockwise winds the second steering roller and anticlockwise winds the third reversing roller, and then enters the traction mechanism.

Furthermore, the first steering roller, the second steering roller, the third reversing roller and the tensioning roller are arranged in parallel, and the front end face and the rear end face of each roller are located in the same vertical plane.

Further, the roller bodies of the first steering roller, the second steering roller, the third reversing roller and the tensioning roller are all made of polyurethane materials.

Furthermore, the outer peripheral surface of the locating sleeve is provided with an annular groove, and the belt is arranged in the annular groove.

Further, the belt is a canvas belt, and two ends of the canvas belt are respectively fixed on the fixing rod and the rotating sleeve through screws.

Further, the rotating sleeve is rotatably mounted on the cantilever shaft through a bearing.

The utility model has the beneficial effects that: through setting up the cantilever type tension automatic regulating apparatus of this application, can make packagine machine at the during operation, need not artifical the participation and adjust, obtain stable tension control. The tension adjusting mechanism has the advantages of simple structure, low manufacturing cost and high tension adjusting reliability.

Drawings

Fig. 1 is a schematic structural view of a cantilever type automatic tension adjusting apparatus of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail and fully with reference to the accompanying drawings and a preferred embodiment.

It should be noted that in the following description, taking the orientation shown in fig. 1 as an example, in fig. 1, the left side of the paper roll holder 10 is the left side of the present application, and is also the rear side of the packaging machine; the right side of the roll holder 10 is the right side of the application and is also the front side of the packaging machine.

Referring to fig. 1, the embodiment provides a cantilever type automatic tension adjusting device, including being used for supporting scroll pivoted scroll support 10 and passing the scroll support 10 trailing flank and be used for the paper spool of fixed scroll 30, the fixed cover in rear flank of paper spool is equipped with position sleeve 11, fixed mounting has dead lever 12 and cantilever axle 13 on the trailing flank of scroll support 10 of position sleeve 11 below, cantilever axle 13 has the cover 14 that changes through the rotatable installation of bearing, belt 1 one end is passed through the fix with screw on the left side circumference lateral wall of dead lever 12, the other end upwards walks around clockwise behind position sleeve 11 and down through fix with screw on the left side circumference lateral wall of the

cover

14, 2 one end of cantilever pole is passed through the fix with screw on the outer terminal surface of the cover 14 that changes, the other end freely extends towards the direction of keeping away from the scroll along vertical, 2 free ends of cantilever pole are rotatable installs tensioning roller 4.

The front side surface of the paper roll support 10 is fixedly provided with a first supporting rod 15 and a second supporting rod 16 from top to bottom in sequence, the first supporting rod 15 is sequentially provided with a first steering roller 5 and a second steering roller 6 from right to left in a rotatable mode, the first steering roller 5 and the second steering roller 6 are located on two sides above the tensioning roller 4, the second supporting rod 16 is provided with a third steering roller 7 in a rotatable mode, and the third steering roller 7 is located below the tensioning roller 4 and located on the left side of the second steering roller 6.

The wrapping paper 20 is wound out from the paper roll 30, and then sequentially wound around the first turning roller 5 anticlockwise, the tensioning roller 4 clockwise, the second turning roller 6 anticlockwise, the third reversing roller 7 anticlockwise, and then enters the traction mechanism.

Preferably, the first steering roller 5, the second steering roller 6, the third steering roller 7 and the tensioning roller 4 are arranged in parallel and are positioned on the front side of the paper roll support 10, and the front end face and the rear end face of each roller are flush.

Preferably, the roller bodies of the first deflecting roller 5, the second deflecting roller 6, the third deflecting roller 7 and the tension roller 4 are made of polyurethane material. The roller body made of the polyurethane material has light weight, is resistant to environmental corrosion, and is non-toxic and harmless when being contacted with a packaging material.

Preferably, the outer circumferential surface of the positioning sleeve 11 is provided with an annular groove, and the belt 1 is arranged in the annular groove. The belt 1 is prevented from deviating and the free rotation of the cantilever bar 2 is hindered.

The preferable belt 1 is a canvas belt, so that the deformation is small, and the stable control of the tension is facilitated.

The working principle of the utility model is as follows: when the packaging machine works, paper on the paper roll 20 is driven by the traction mechanism to sequentially move to the packaging mechanism by bypassing the first steering roller 5, the tensioning roller 4, the second steering roller 6 and the third reversing roller 7, a paper reel freely rotates under the action of traction force, and the paper keeps certain tension; in the initial stage, the diameter of the paper roll is large, the rotational inertia of the paper roll shaft is large, the traction force for pulling the paper roll to rotate is large, the tension of paper is large, the cantilever rod 2 is lifted to a higher position, and the friction force between the belt 1 and the positioning sleeve 11 is small or zero; with the reduction of the diameter of the paper roll, the rotational inertia of the paper roll is reduced, the traction force is reduced, the paper tension is reduced, the cantilever rod 2 descends under the action of gravity, the belt 1 extends, the wrap angle of the belt 1 on the positioning sleeve 11 is increased, the friction force between the belt 1 and the positioning sleeve 11 is increased, the torque of the paper reel is increased, the rotating speed of the paper reel is reduced, the paper tension is increased, and the paper tension is controlled within a proper range.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and the improvements and modifications are also within the protection scope of the present invention.

Claims

1. A cantilever type automatic tension adjusting device comprises a paper roll support and a paper roll shaft, and is characterized in that one end of the paper roll shaft, which rotatably penetrates through the back side of the paper roll support, is fixedly sleeved with a positioning sleeve, the back side of the paper roll support is fixedly provided with a fixed rod and a cantilever shaft, the cantilever shaft is rotatably provided with a rotating sleeve, one end of a belt is fixed on the fixed rod, the other end of the belt is fixed on the circumferential side wall on the left side of the rotating sleeve after upwards and clockwise bypassing the positioning sleeve, one end of a cantilever rod is fixed on the rotating sleeve, the other end of the cantilever rod freely extends in the direction far away from a paper roll along the vertical surface, and the free end of the cantilever rod is rotatably provided with a tensioning roller; a first supporting rod and a second supporting rod are fixedly installed on the front side face of the paper roll support, a first steering roller and a second steering roller are rotatably installed on the first supporting rod from right to left, the first steering roller and the second steering roller are located on two sides above the tensioning roller, a third reversing roller is rotatably installed on the second supporting rod, and the third reversing roller is located below the tensioning roller and on the left side of the second steering roller; the wrapping paper is in turn wound out from the paper roll, anticlockwise winds the first steering roller, clockwise winds the tensioning roller, anticlockwise winds the second steering roller and anticlockwise winds the third reversing roller, and then enters the traction mechanism.

2. The automatic tension adjusting device of claim 1, wherein the first deflecting roller, the second deflecting roller, the third deflecting roller and the tension roller are disposed in parallel, and the front and rear end surfaces of each roller are in the same vertical plane.

3. The automatic tension adjusting device of claim 1, wherein the first deflecting roller, the second deflecting roller, the third deflecting roller and the tension roller are made of polyurethane.

4. The automatic tension adjusting apparatus of claim 1, wherein the positioning sleeve is provided with an annular groove on its outer circumferential surface, and the belt is disposed in the annular groove.

5. The automatic tension adjusting apparatus of claim 1, wherein the belt is a canvas belt, and both ends of the canvas belt are fixed to the fixing rod and the rotating sleeve by screws, respectively.

6. The automatic tension adjusting apparatus of claim 1, wherein the rotating sleeve is rotatably mounted on the cantilever shaft by a bearing.