CN222118369U

CN222118369U - A single-sided friction winding device

Info

Publication number: CN222118369U
Application number: CN202420747550.9U
Authority: CN
Inventors: 陆雄球; 陆金浩
Original assignee: Guangdong Xiongqiu Machinery Technology Co ltd
Current assignee: Guangdong Xiongqiu Machinery Technology Co ltd
Priority date: 2024-04-11
Filing date: 2024-04-11
Publication date: 2024-12-06
Anticipated expiration: 2034-04-11

Abstract

The utility model relates to the technical field of winding equipment, in particular to a unilateral friction winding device which comprises a winding unit, wherein the winding unit comprises a frame, a front traction mechanism, a winding mechanism, a poking roller mechanism, an automatic cutting mechanism and a winding roller moving mechanism which are arranged on the frame, the automatic cutting mechanism comprises a rotation driving assembly, a cutting assembly, two rotating blocks and two auxiliary positioning rollers, the two rotating blocks are respectively and rotatably sleeved at two ends of a driving shaft, the rotation driving assembly is in transmission connection with one of the rotating blocks to drive the rotating blocks to rotate around the driving shaft, and two ends of the cutting assembly are respectively and fixedly arranged at the two rotating blocks. The utility model aims to provide the unilateral friction winding device which can realize automatic cutting and continuous winding and can cut a cylindrical film into single films and effectively improve the winding efficiency.

Description

Unilateral friction coiling mechanism

Technical Field

The utility model relates to the technical field of winding equipment, in particular to a unilateral friction winding device.

Background

The film blowing is to heat and melt plastic particles and blow the plastic particles into a film, the processed film is in a cylinder shape, and the cylinder-shaped film is required to be cut into sheets and then wound. Traditional winding mechanism only has single rolling seat structure, after the rolling is accomplished to single wind-up roll, need shut down and change new wind-up roll and trade a roll operation, after the rolling is accomplished moreover, film roll on the equipment still need the manual work to dismantle from the equipment, perhaps get off film roll transport through the carrier, not only troublesome operation, work efficiency is low, can influence the continuous operation of rolling equipment moreover, leads to rolling efficiency lower.

Disclosure of utility model

The utility model aims to provide a unilateral friction winding device which can realize automatic cutting and continuous winding and can cut a cylindrical film into single films, thereby effectively improving the winding efficiency.

The unilateral friction winding device comprises a winding unit, wherein the winding unit comprises a frame, a preposed traction mechanism, a winding mechanism, a poking roller mechanism, an automatic cutting mechanism and a winding roller moving mechanism, wherein the preposed traction mechanism, the winding mechanism, the poking roller mechanism, the automatic cutting mechanism and the winding roller moving mechanism are arranged on the frame;

The winding mechanism comprises a winding driving assembly, a driving shaft and a winding driving sleeve, wherein two ends of the driving shaft are rotatably arranged at two ends of the frame;

The automatic cutting mechanism comprises a rotation driving assembly, a cutting assembly, two rotating blocks and two auxiliary positioning rollers, wherein the two rotating blocks are respectively and rotatably sleeved at two ends of the driving shaft, and the rotation driving assembly is in transmission connection with one of the rotating blocks and drives the rotating blocks to rotate around the driving shaft;

The two ends of the auxiliary positioning roller are respectively and fixedly arranged on the inner sides of the two rotating blocks, and the two auxiliary positioning rollers are arranged at one end of the rotating blocks side by side, so that the auxiliary positioning roller is positioned at the periphery of the winding driving sleeve;

the roller pulling mechanism is provided with two groups and is respectively arranged on the rotating block, and when the rotating block rotates, the roller pulling mechanism pulls the roller to be wound on the rack to the rotating block; the wind-up roll moving mechanism is arranged at the output end of the wind-up mechanism.

Preferably, the front traction mechanism comprises a first traction roller, a second traction roller, a traction driving assembly and a pushing mechanism, and the first traction roller and the second traction roller are parallel to each other;

The two ends of the first traction roller are respectively arranged on the rack, sliding rails are respectively arranged on two sides of the rack, and the two ends of the second traction roller are provided with adjusting sliding blocks which are in sliding fit with the sliding rails;

the pushing mechanism is connected with the adjusting slide block and used for pushing the second traction roller to be close to or far away from the first traction roller.

Preferably, the rack is provided with a guide rod, the front traction mechanism and the winding mechanism are mutually parallel, the guide rod is provided with a cutter assembly, the cutter assembly comprises a first sliding block, an elastic piece and a locking piece, two ends of the guide rod are connected to the rack, the first sliding block is in sliding fit with the guide rod, and the elastic piece is sleeved on the guide rod;

One end of the elastic piece is connected with the first sliding block, the other end of the elastic piece is connected with the locking piece, the locking piece is used for positioning the end part of the elastic piece on the guide rod, and the first sliding block is provided with a cutting knife;

the two groups of cutting knife assemblies are arranged in a mirror symmetry mode, and the cutting edges of the two cutting knives face away from each other.

Preferably, the rotation driving assembly comprises a driving motor, a driving gear, a driving belt and a driven gear;

the driving gear is rotatably arranged on one inner side of the rack and is in transmission connection with the output end of the driving motor;

The driven gear is fixedly arranged on one side of the rotating block, the driving belt is wound on the driving gear and the driven gear, and the driving belt is respectively connected with the driving gear and the driven gear in a meshed mode.

Preferably, the rotation driving assembly further comprises a linkage rotating shaft, a linkage driving gear, a linkage driving belt and a linkage driven gear;

The linkage driving gear is rotatably arranged on the other inner side of the frame, and two ends of the linkage rotating shaft are respectively connected with the driving gear and the linkage driving gear;

The linkage driven gear is fixedly arranged on one side of the other rotating block, the linkage driving belt is wound on the linkage driving gear and the linkage driven gear, and the linkage driving belt is respectively connected with the linkage driving gear and the linkage driven gear in a meshed mode.

Preferably, a limiting groove is formed in a side wall of the rotating block in a recessed mode, and the winding roller can sink into the limiting groove to achieve positioning and limiting.

Preferably, the wind-up roll moving mechanisms are respectively arranged at two sides of the frame;

The wind-up roll moving mechanism comprises a moving driving cylinder and a moving driving plate;

One end of the movable driving plate is rotatably arranged on the frame, the movable driving cylinder is rotatably arranged on the frame, and the output end of the movable driving cylinder is rotatably connected with the middle part of the movable driving plate;

the other end of the movable driving plate is provided with a movable control groove.

The technical scheme provided by the utility model can comprise the following beneficial effects:

the utility model provides a unilateral friction winding device which can realize rapid winding of a film and improve winding efficiency, wherein after a winding mechanism is used for automatically winding the film and a winding roller is used for finishing winding, the film is automatically cut off by a clearance automatic cutting mechanism, a new winding roller is put into the winding roller again to perform a new round of film winding operation, so that continuous automatic winding operation is realized, the winding mode of replacing the winding roller by a single winding station in the prior art is replaced, the time consumption of winding roller replacement is greatly shortened, automatic cutting, continuous winding and unwinding are realized, and the winding efficiency is greatly improved.

Drawings

FIG. 1 is a schematic perspective view of an embodiment of the present utility model;

FIG. 2 is a schematic perspective view of a cutter assembly according to one embodiment of the present utility model;

FIG. 3 is a schematic diagram of a winding mechanism and an automatic cutting mechanism according to an embodiment of the present utility model;

FIG. 4 is an enlarged partial schematic view of an automatic cutting mechanism according to one embodiment of the present utility model;

FIG. 5 is a schematic view of a wind-up roll according to one embodiment of the utility model;

FIG. 6 is an enlarged schematic view of an exploded view of a wind-up roll in accordance with one embodiment of the present utility model.

Wherein, the frame 1, the guide rod 11 and the slide rail 12;

the front traction mechanism 2, the first traction roller 21, the second traction roller 22, the adjusting slide block 221 and the pushing mechanism 24;

The winding mechanism 3, the winding driving assembly 31, the driving shaft 32 and the winding driving sleeve 33;

a roller pulling mechanism 4;

The automatic cutting mechanism 5, the rotary driving assembly 51, the driving motor 511, the driving gear 512, the driving belt 513, the driven gear 514, the linkage rotating shaft 515, the linkage driving gear 516, the linkage driving belt 517, the linkage driven gear 518, the cutting assembly 52, the rotating block 53, the limiting groove 531 and the auxiliary positioning roller 54;

a wind-up roller moving mechanism 7, a moving driving cylinder 71, a moving driving plate 72, a moving control groove 721;

The cutter assembly 8, the first slider 81, the elastic member 82, the locking member 83, and the cutter 84.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly, for distinguishing between the descriptive features, and not sequentially, and not lightly.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

A single-sided friction winding device according to an embodiment of the present utility model is described below with reference to fig. 1 to 6.

The unilateral friction winding device comprises two winding units, wherein each winding unit comprises a frame 1, a front traction mechanism 2, a winding mechanism 3, a poking roller mechanism 4, an automatic cutting mechanism 5 and a winding roller moving mechanism 7 which are arranged on the frame 1, wherein a film sequentially passes through the front traction mechanism 2 and then is wound on the winding mechanism 3;

The winding mechanism 3 comprises a winding driving assembly 31, a driving shaft 32 and a winding driving sleeve 33, wherein two ends of the driving shaft 32 are rotatably arranged at two ends of the frame 1, one end of the driving shaft 32 is in transmission connection with the winding driving assembly 31, and the winding driving sleeve 33 is fixedly arranged in the middle of the driving shaft 32;

The automatic cutting mechanism 5 comprises a rotary driving assembly 51, a cutting assembly 52, two rotary blocks 53 and two auxiliary positioning rollers 54, wherein the two rotary blocks 53 are respectively and rotatably sleeved at two ends of the driving shaft 32, and the rotary driving assembly 51 is in transmission connection with one of the rotary blocks 53 to drive the rotary blocks 53 to rotate around the driving shaft 32;

The two ends of the auxiliary positioning roller 54 are respectively and fixedly arranged on the inner sides of the two rotating blocks 53, the two auxiliary positioning rollers 54 are arranged at one end of the rotating blocks 53 side by side, so that the auxiliary positioning roller 54 is positioned on the periphery of the winding driving sleeve 33, the two ends of the cutting assembly 52 are respectively and fixedly arranged on the two rotating blocks 53, and the cutting assembly 52 is arranged between the two auxiliary positioning rollers 54;

The roller pulling mechanism 4 is provided with two groups and is respectively arranged on the rotating block 53, when the rotating block 53 rotates, the roller pulling mechanism 4 pulls the roller to be wound on the frame 1 to the position of the rotating block 53, and the winding roller moving mechanism 7 is arranged at the output end of the winding mechanism 3.

Further, the front traction mechanism 2 comprises a first traction roller 21, a second traction roller 22, a traction driving assembly and a pushing mechanism 24, wherein the first traction roller 21 and the second traction roller 22 are parallel to each other;

Two ends of the first traction roller 21 are respectively arranged on the frame 1, two sides of the frame 1 are respectively provided with a sliding rail 12, two ends of the second traction roller 22 are respectively provided with an adjusting sliding block 221, and the adjusting sliding blocks 221 are in sliding fit with the sliding rails 12;

The pushing mechanism 24 is connected with the adjusting slider 221, and the pushing mechanism 24 is used for pushing the second traction roller 22 to approach or separate from the first traction roller 21.

In a preferred embodiment of the utility model, the pusher drives the second pulling roll 22 to move the two pulling rolls closer and farther apart to facilitate mounting the end of the film to the forward pulling mechanism 2. Preferably, the pushing member is an air cylinder, and a piston rod of the air cylinder is connected with the adjusting slide 221.

Further, the frame 1 is provided with a guide rod 11, the pre-traction mechanism 2 and the winding mechanism 3 are parallel to each other, the guide rod 11 is provided with a cutter assembly 8, the cutter assembly comprises a first sliding block 81, an elastic piece 82 and a locking piece 83, two ends of the guide rod 11 are connected to the frame 1, the first sliding block 81 is in sliding fit with the guide rod 11, and the elastic piece 82 is sleeved on the guide rod 11;

One end of the elastic member 82 is connected with the first sliding block 81, the other end of the elastic member 82 is connected with the locking member 83, the locking member 83 is used for positioning the end of the elastic member 82 on the guide rod 11, and the first sliding block 81 is provided with a cutting knife 84;

The two sets of cutter assemblies 8 are arranged in mirror symmetry, with the edges of the two cutters 84 facing away.

In a preferred embodiment of the present utility model, the cutter assembly 8 is mounted to the guide bar 11, and the two cutters 84 can move toward each other under the restriction of the elastic member 82 to accommodate the width variation and the lateral displacement of the cylindrical film, thereby ensuring that the cylindrical film is reliably cut into two films. Specifically, the elastic member 82 is a spring, and the spring is sleeved on the guide rod 11. The two cutting blades 84 are disposed upward, and the cutting edge of the cutting blade 84 faces the edge of the tubular film when cutting, and the tubular film is cut into two pieces when passing through the two cutting blades 84. Illustratively, the locking member 83 is composed of an annular sleeve and a screw, the annular sleeve is arranged on the guide rod 11, and the screw is in threaded fit with the annular sleeve, so that the screw is tightly abutted against the guide rod 11, and the end of the elastic member 82 is positioned.

During winding, the winding roller 9 is tightly attached to the winding driving sleeve 33 under the action of gravity, the driving shaft 32 drives the winding driving sleeve 33 to rotate under the driving of the winding driving assembly 31, the winding driving sleeve 33 drives the winding roller 9 to rotate under the action of friction force, and the film is attached when the winding roller 9 is in contact with the film, so that the film is wound on the surface of the winding drum core 92 under the driving of the rotation of the winding roller 9.

When the coil is replaced, after the last coil is finished, the next coil 9 is placed in the positioning groove on the frame 1, then the rotating block 53 is driven to rotate for one circle by the rotation driving assembly 51, at the moment, the rotating block 53 drives the poking roller mechanism 4 to rotate, the coil 9 positioned in the positioning groove is poked to move towards one side of the rotating block 53, and two ends of the coil 9 fall into the limiting groove 531 along with the continuous rotation of the rotating block 53. Then, the rotating block 53 drives the auxiliary positioning roller 54 to rotate, the auxiliary positioning roller 54 rotates upwards from the lower part of the rotating block 53, so that the film bypasses the upper part of the auxiliary positioning roller 54 after passing through the winding driving sleeve 33, then the cutting assembly 52 is started to cut off the film, the film at the cut-off position starts to be wound on the next winding roller 9, the continuous automatic winding operation can be realized by cycling the steps, the winding operation can be automatically cut while the automatic winding operation is realized, the winding operation is realized, and in addition, the winding roller moving mechanism 7 is further arranged, the winding operation of the film driving roller can be realized, the working efficiency can be effectively improved, and the labor cost is reduced.

In this embodiment, the roller pulling mechanism 4 is a pulling rod, the lower end of the pulling rod is hinged to the rotating block 53, and when the upper end of the pulling rod contacts with the winding roller of the positioning groove, the upper end of the pulling rod pushes the winding roller to move towards the rotating block 53.

Further, the rotary driving assembly 51 includes a driving motor 511, a driving gear 512, a driving belt 513, and a driven gear 514;

The driving gear 512 is rotatably disposed at an inner side of the frame 1, and the driving gear 512 is in transmission connection with an output end of the driving motor 511;

The driven gear 514 is fixedly arranged on one side of the rotating block 53, the driving belt 513 is wound around the driving gear 512 and the driven gear 514, and the driving belt 513 is respectively meshed with the driving gear 512 and the driven gear 514.

In specific work, the driving motor 511 drives the driving gear 512 to rotate, and the transmission effect of the clearance transmission belt 513 drives the driven gear 514 to rotate, so that the rotary block 53 rotates around the driving shaft 32, the pitch circle radius of the driven gear 514 is larger than that of the driving gear 512, the effect of reducing speed and increasing torque is achieved, and the stability and smoothness of the rotation of the driving block are ensured.

Further, the rotation driving assembly 51 further includes a linkage rotation shaft 515, a linkage driving gear 516, a linkage driving belt 517 and a linkage driven gear 518;

The linkage driving gear 516 is rotatably disposed at the other inner side of the frame 1, and two ends of the linkage rotating shaft 515 are respectively connected with the driving gear 512 and the linkage driving gear 516;

The linkage driven gear 518 is fixedly arranged on one side of the other rotating block 53, the linkage transmission belt 517 is wound around the linkage driving gear 516 and the linkage driven gear 518, and the linkage transmission belt 517 is respectively in meshed connection with the linkage driving gear 516 and the linkage driven gear 518.

In specific work, the driving motor 511 drives the driving gear 512 to rotate, the transmission function of the general joint linkage rotating shaft 515 links the driving gear 516 to rotate, and the linkage driving belt 517 drives the linkage driven gear 518 to rotate, so that the rotating block 53 at the other side synchronously rotates around the driving shaft 32, the synchronization of the movement of the two driving blocks is effectively ensured, the stability of the movement of the cutting assembly 52 and the two auxiliary positioning rollers 54 is improved, the pitch circle radius of the linkage driven gear 518 is larger than that of the linkage driving gear 516, the effect of reducing speed and increasing torque is realized, and the stability and smoothness of the rotation of the driving block are ensured.

Further, a limiting groove 531 is concavely formed in a side wall of the rotating block 53, and the winding roller 9 can sink into the limiting groove 531 to achieve positioning and limiting.

When the wind-up roll 9 falls into the limit groove 531, the positioning bearing 95 can sink into the limit groove 531 of the side wall of the rotating block 53, so that the wind-up roll 9 is positioned and limited, the deviation of the wind-up roll 9 is effectively prevented, and the stability and safety of film winding are ensured.

Further, the winding unit further comprises two groups of winding roller moving mechanisms 7, and the two groups of winding roller moving mechanisms 7 are respectively arranged at two sides of the frame 1;

The wind-up roll moving mechanism 7 comprises a moving driving cylinder 71 and a moving driving plate 72;

One end of the moving driving plate 72 is rotatably arranged on the frame 1, the moving driving cylinder 71 is rotatably arranged on the frame 1, and the output end of the moving driving cylinder 71 is rotatably connected with the middle part of the moving driving plate 72;

The other end of the movement driving plate 72 is provided with a movement control groove 721.

When the rotation driving assembly 51 drives the rotation block 53 to rotate, the wind-up roller 9 falls onto the surface of the frame 1 along with the rotation of the rotation block 53, two ends of the wind-up roller 9 just fall into the movement control grooves 721 of the two movement driving plates 72, the movement driving plates 72 are driven to rotate through the telescopic driving of the movement driving air cylinders 71 to drive the wind-up roller 9 to move on the frame 1, the distance between the wind-up roller 9 and the wind-up driving sleeve 33 of the wind-up mechanism 3 can be controlled, so that the pressure and the friction between the wind-up roller 9 and the wind-up driving sleeve 33 are ensured, the film is prevented from being separated from winding, after the film is cut off by the automatic cutting mechanism 5, the movement driving air cylinders 71 drive the movement driving plates 72 to rotate to enable the wind-up roller 9 to move to the wind-up roller moving mechanism 7 to discharge, then the movement driving air cylinders 71 retract, the movement driving plates 72 are driven to one side of the wind-up mechanism 3, and the initial position is returned to wait for the movement control of the next wind-up roller 9.

Further, the two groups of wind-up roll moving mechanisms 7 are arranged, and the two groups of wind-up roll moving mechanisms 7 are respectively arranged at two sides of the frame 1;

Further, the front traction mechanism 2 comprises a plurality of traction rollers, two ends of each traction roller are respectively arranged on the frame 1, and the film sequentially winds and passes through the traction rollers.

The utility model also provides a winding roller which is applied to the unilateral friction winding device and comprises a main shaft 91, a winding cylinder core 92, two rotating sleeves 93 and two limiting sleeves 94;

The winding cylinder core 92 is detachably arranged in the middle of the main shaft 91;

The two rotating sleeves 93 are respectively rotatably sleeved at two ends of the main shaft 91;

The two ends of the main shaft 91 are respectively provided with a positioning collar 911, the rotating sleeves 93 are respectively arranged on the outer sides of the positioning collars 911, and the limiting sleeves 94 are arranged on the outer sides of the rotating sleeves 93.

Specifically, an adhesive layer is disposed on the outer side of the winding drum core 92, and the adhesive layer may be an adhesive layer or the like. When the winding drum core 92 is contacted with the film, the film is adhered and stuck, so that the film is attached to the surface of the winding drum core 92 for winding under the driving of the winding drum core 92.

One side of the rotating sleeve 93 is limited by the positioning collar 911, and the other side is limited by the limiting sleeve 94, so that the position of the rotating sleeve 93 is fixed, and the rotating sleeve 93 can be effectively prevented from sliding on the main shaft 91.

The wind-up roller 9 is arranged on the wind-up roller lifting mechanism 4 through rotating sleeves 93 on two sides, so that the rotating sleeves 93 are relatively stationary and fixed through friction force between the rotating sleeves 93 and the wind-up roller lifting mechanism 4, and the wind-up cylinder core 92 is contacted with the wind-up driving wheel of the wind-up mechanism 3 through a film to drive the main shaft 91 to rotate, thereby realizing the wind-up of the film.

Further, positioning bearings 95 are further provided at both ends of the main shaft 91, positioning shaft sleeves 96 are provided at outer sides of the positioning bearings 95, and the rotating sleeve 93 is provided at outer sides of the positioning shaft sleeves 96.

When the wind-up roll 9 falls on the wind-up roll lifting mechanism 4, the positioning bearing 95 can sink into the limit groove 531 of the side wall of the rotating block 53, so that the wind-up roll 9 is positioned and limited, the deflection of the wind-up roll 9 is effectively prevented, and the stability and safety of film winding are ensured.

Other configurations, etc. and operations of a single-sided friction winding device according to embodiments of the present utility model are known to those of ordinary skill in the art and will not be described in detail herein.

In the description herein, reference to the term "embodiment," "example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims

1. The unilateral friction winding device is characterized by comprising a winding unit, wherein the winding unit comprises a frame, a preposed traction mechanism, a winding mechanism, a poking roller mechanism, an automatic cutting mechanism and a winding roller moving mechanism which are arranged on the frame, wherein a film sequentially passes through the preposed traction mechanism and then is wound on the winding mechanism;

The roller pulling mechanism is provided with two groups and is respectively arranged on the rotating block, and when the rotating block rotates, the roller pulling mechanism pulls the roller to be wound on the rack to the rotating block; the winding roller moving mechanism is arranged at the output end of the winding mechanism;

The front traction mechanism comprises a first traction roller, a second traction roller, a traction driving assembly and a pushing mechanism, and the first traction roller and the second traction roller are parallel to each other;

The pushing mechanism is connected with the adjusting slide block and is used for pushing the second traction roller to be close to or far away from the first traction roller;

The machine frame is provided with a guide rod, the front traction mechanism and the winding mechanism are mutually parallel, the guide rod is provided with a cutting knife assembly, the cutting knife assembly comprises a first sliding block, an elastic piece and a locking piece, two ends of the guide rod are connected to the machine frame, the first sliding block is in sliding fit with the guide rod, and the elastic piece is sleeved on the guide rod;

2. The single sided friction winding device of claim 1, wherein the rotational drive assembly comprises a drive motor, a drive gear, a drive belt, and a driven gear;

3. The single-sided friction winding device of claim 2, wherein the rotational drive assembly further comprises a linked shaft, a linked drive gear, a linked belt and a linked driven gear;

4. A unilateral friction winding device according to claim 3, wherein a limiting groove is formed in a side wall of the rotating block in a concave manner, and the winding roller can sink into the limiting groove to realize positioning and limiting.

5. The unilateral friction winding device according to claim 1, wherein the winding roller moving mechanisms are respectively arranged at two sides of the frame;