CN217534832U - Multi-station material roll clamping device - Google Patents

Abstract

The utility model discloses a multi-station material coil clamping device; the material roll clamping mechanism comprises two fixed wallboards which are oppositely arranged, wherein the fixed wallboards are rotatably connected with turnover wallboards, at least two groups of clamping and positioning units are connected between the turnover wallboards, a plurality of groups of clamping and positioning mechanisms are uniformly arrayed in the center of the turnover wallboards, and the clamping and positioning units are used for clamping a material roll; the automatic clamping of the material roll can be realized through the rotation of the turnover wall plate and the arrangement of the clamping and positioning unit, the clamping efficiency is improved, the integral clamping, positioning and transmission are arranged on the turnover wall plate, the integral structure is compact, and the manufacturing cost is reduced; and the rotation process of the integral rotating wallboard is adjusted through the driving mechanism and the speed reducing mechanism, and the stability of operation is ensured through independent arrangement.

Description

Multi-station material roll clamping device

Technical Field

The utility model relates to a equipment for packing technical field, concretely relates to clamping device is rolled up to multistation material.

Background

Coating composite equipment is generally used for compounding a base material and a surface material in the technical field of packaging equipment, namely coating a coating agent on the base material through the equipment, and then contacting and laminating the surface material and the coating agent surface so as to realize the compounding process of the base material and the surface material; generally, a coating and compounding device comprises a winding device, an unwinding device, a coating device, a compounding device and other components, wherein a material roll clamping device for clamping a material roll is arranged in the winding device and the unwinding device, and the material roll is clamped by the material roll clamping device.

The existing material roll clamping device is usually clamped by a movable clamping head with two ends fixed on a wall plate, and only can meet the existing coating composite equipment, however, along with the development of the equipment intelligentization trend, the manual feeding efficiency of the existing material roll clamping device is low, the automatic clamping of the feeding and discharging of material rolls becomes a technical problem of industry development, and the existing material roll clamping device cannot meet the automatic clamping and cannot solve the problem of automatic clamping. Therefore, a material roll clamping device which can provide an automatic clamping scheme is needed.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a clamping device is rolled up to multistation material to improve the degree of automation of material clamping device, promote its work efficiency.

In order to achieve the purpose, the utility model provides a multi-station material roll clamping device, which comprises two fixed wallboards which are oppositely arranged, wherein a plurality of fixed supporting columns which are used for connecting the fixed wallboards at two sides into a whole are arranged between the fixed wallboards, the clamping device comprises an overturning wallboard and a clamping positioning unit, a material roll transmission mechanism, an overturning driving mechanism and an overturning braking mechanism which are respectively arranged on the overturning wallboard, the overturning wallboard is respectively and rotatably connected on the fixed wallboards at two sides, the central axes of the two overturning wallboards are collinear, and a plurality of fixed supporting columns are connected between the overturning wallboards; the clamping and positioning unit is connected between the turnover wallboards at two sides and comprises at least two groups of clamping and positioning mechanisms, and the clamping and positioning mechanisms are uniformly arrayed in the center of the turnover wallboards; the clamping and positioning mechanism is connected between the turnover wallboards in a sliding manner, so that the clamping and positioning of the material roll are completed through the clamping and positioning mechanism; the material roll transmission mechanism is arranged in the clamping and positioning unit and used for driving a material roll to rotate; the turnover driving mechanism is in driving connection with the turnover wall plate and is used for driving the turnover wall plate to rotate; the turnover braking mechanism is connected with the turnover wall plate and used for realizing the speed reduction of the rotation of the turnover wall plate through the turnover braking mechanism.

According to the material roll clamping device, the rotatable wall plates are respectively arranged on the wall plates on two sides of the fixed wall plate and the ground, and the devices and parts for material roll clamping are arranged on the rotatable wall plates, so that the whole clamping device can rotate, and the clamping positioning unit has up-and-down displacement distance in the rotating process, thereby providing an automatic clamping scheme for automatically loading and unloading material rolls, namely arranging an automatic loading device (such as an AGV automatic feeding vehicle) in the automatic scheme, moving the automatic feeding vehicle to the position of the clamping unit, and realizing the automatic loading or unloading process through the position change in the rotating process; in addition, in order to achieve more efficient working efficiency and continuous and uninterrupted working environment, the positioning and clamping units are provided with multiple groups, and the multiple groups of positioning and clamping units are arranged in an even array mode, so that the working efficiency is improved, and the whole material roll clamping device is kept to be always provided with a standby material roll.

The clamping and positioning mechanism in the material package clamping device is characterized by comprising a sliding guide shaft, a first clamping part, a second clamping part, a linear moving mechanism and a positioning and moving mechanism, wherein the sliding guide shaft is fixedly connected between the turnover wall plates; the first clamping part and the second clamping part are respectively connected with a sliding part, so that the first clamping part and the second clamping part can slide along the axial direction of the sliding guide shaft through the sliding parts; the non-shaft material ejecting heads for clamping the material roll are respectively connected to the opposite sides of the first clamping part and the second clamping part, the non-shaft material ejecting heads on the two sides are collinear, and the non-shaft material ejecting head on one side is in transmission connection with a material roll transmission mechanism; the linear moving mechanism is associated with the first clamping part and the second clamping part; the positioning and moving mechanism is arranged on the first clamping part or the second clamping part. If the first clamping part and the second clamping part are not provided with sliding parts, the sliding on the sliding guide shaft can be finished, however, sliding friction is necessarily generated during sliding, so that the sliding resistance of the first sliding part and the second sliding part is large, the sliding process is not smooth, the clamping efficiency and the service life of the part are influenced, and therefore, the sliding part is particularly necessary to be arranged, and particularly, the effect is that the material roll with larger weight and longer width can be rolled.

A particularly advantageous embodiment is characterized in that the first clamping part and the second clamping part in the clamping and positioning mechanism are associated through a linear moving mechanism, so that automatic clamping of a material roll is performed through the linear moving mechanism, and the whole body is formed after clamping, so that positioning and moving are convenient, and the positioning and moving mechanism is arranged to ensure that the material roll can be accurately moved to a target position after the material roll is completely clamped, so that the clamping efficiency is improved, and the service life of the screw rod is prolonged, the labor intensity is reduced, and the positioning quality of the material roll is improved.

An advantageous feature of the positioning and moving mechanism in the material package clamping device is that the positioning and moving mechanism includes a screw rod and a threaded portion, wherein the threaded portion is provided on the first clamping portion or the second clamping portion, and the screw rod is in threaded connection with the threaded portion; the one end of lead screw is connected rotate on the wallboard, still the transmission is connected with a drive division on the end of lead screw, drive division fixed connection is in rotate on the wallboard, be connected with the encoder on the drive division. The positioning function is realized through the arrangement of the encoder on the driving device, the positioning precision of the material roll device is improved, and the working quality of the whole material roll is further improved.

An advantageous feature of the linear moving mechanism in the above-described material package clamping device is that the linear moving mechanism includes a fixed portion and a moving portion, wherein the fixed portion is connected to the first clamping portion, and the moving portion is connected to the second clamping portion; in another embodiment of the linear moving mechanism, the fixed part is connected to the second clamping part, and the moving part is connected to the first clamping part.

In an advantageous embodiment of the present invention, the first clamping portion and the second clamping portion are designed to have the same structure, wherein the two clamping portions respectively include a first clamping wall plate and a second clamping wall plate, the first clamping wall plate is fixedly connected to the second clamping wall plate, a transmission gap is formed between the first clamping wall plate and the second clamping wall plate, and one of the clamping portions is provided with a material roll transmission mechanism for driving the shaftless material ejection head in the transmission gap. Be to the clamping part of both sides respectively through two fixed wallboard connection realization promptly, in principle a wallboard alright in order to realize the function of wallboard, and established two wallboards in this application, and two wallboard middle parts are provided with a transmission clearance, setting up in this clearance has provided installation space and stress point for drive mechanism for holistic connection structure is compacter, and meanwhile has still increased the structural strength of clamping portion, and this is more important to the heavier or longer material of width of quality rolls.

The material roll transmission mechanism in the material roll clamping device is characterized in that the transmission mechanism comprises a motor and a transmission assembly, the motor is fixedly connected to the first clamping wall plate, an output shaft of the motor extends into the transmission gap, and a driving wheel is arranged on the output shaft of the motor; the transmission assembly comprises a transmission part and a driven part, and the transmission part is in transmission connection with the driven part and the driving wheel respectively; the transmission part comprises an intermediate transmission wheel and a transmission shaft, the intermediate transmission wheel is rotatably connected to the transmission shaft, and the transmission shaft is fixedly connected between the first clamping wallboard and the second clamping wallboard; the distance between the driving wheel and the middle driving wheel can be adjusted.

An advantageous feature of the turnover driving mechanism in the material package clamping device is that the turnover driving mechanism includes a driving device, a speed reducer and a transmission chain, wherein the driving device is in driving connection with the speed reducer, a driving wheel is connected to an output end of the speed reducer, a circle of sprocket is connected to an outer ring of the turnover table, and the driving wheel is in transmission connection with the sprocket through the transmission chain. This actuating mechanism is used for the rotation of drive upset wallboard, can know by the aforesaid, be provided with a plurality of spare parts and material book on the upset wallboard, this makes the whole quality of upset wallboard great, and then the torsion that needs is great, and usually for improving stable rotation effect, traditional transmission in the field is for chooseing for use gear drive or belt drive, if adopt gear drive to certainly need improve the machining precision of this part in order to reach the meshing between the gear and the noise of control transmission in-process, this will improve the utility model discloses a manufacturing cost, and belt drive can lead to its transmission unstability to the great drive of this type of torsion, the condition such as skidding produces. The utility model discloses in carry out the transmission through the mode of chain with sprocket for the transmission noise stabilization is little, and is that precision ratio gear machining precision requires lowly at processing, saves the cost of manufacture.

A simple feature of the turning brake mechanism in the material roll clamping device is that the turning wallboard is driven by the turning wallboard and the packing equipment is characterized in that the rotating speed of the turning wallboard is very low during the working process. The design based on the speed reducing mechanism comprises a speed reducing belt arranged around an outer ring of the turnover wall plate, the two ends of the speed reducing belt are respectively connected with a first positioning device and a second positioning device, the first positioning device is fixedly connected onto a fixed wall plate, the second positioning device is connected with a linear driving device, and the linear driving device is fixedly connected onto the fixed wall plate so as to drive the second positioning device to move through the linear driving device. This makes the reduction mechanism particularly simple and easy to manufacture.

In an advantageous embodiment of the present invention, the linear moving mechanism includes a cylinder device, the cylinder device includes a cylinder wall and a push rod, the cylinder wall is fixedly connected to the inside of the first clamping portion through a clamping component, and the cylinder wall freely extends to the outside of the wall plate, and the push rod is fixedly connected to the second clamping portion. It is conceivable to use a cylinder device for the linear movement mechanism.

In an advantageous embodiment of the present invention, the turnover wall plate is circular, and the shape can be other shapes, in order to install the circular turnover wall plate, a circular rotation cavity is processed on the fixed wall plate, and a plurality of limiting rotation wheels are arranged on a circle at the edge of the rotation cavity, and the limiting rotation wheels are in contact with the turnover disk and rotate.

The utility model discloses following beneficial effect has at least: the rotatable wall plates are respectively arranged on the wall plates on the two sides of the fixed wall plate and the ground, and the devices and parts for material roll clamping are arranged on the rotatable wall plates, so that the whole clamping device can rotate, and a clamping positioning unit has an up-and-down displacement distance in the rotating process, thereby providing an automatic clamping scheme for automatically feeding and discharging material rolls, namely arranging an automatic feeding vehicle in an automatic scheme, moving the automatic feeding vehicle to the position of the clamping unit, and realizing the automatic feeding or discharging process through the position change in the rotating process; in addition, in order to achieve more efficient working efficiency and continuous and uninterrupted working environment, the positioning and clamping units are provided with multiple groups, and the multiple groups of positioning and clamping units are arranged in an even array mode, so that the working efficiency is improved, and the whole material roll clamping device is kept to be always provided with a standby material roll.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a three-dimensional structure diagram of a clamping device according to an embodiment of the present invention;

FIG. 2 is a structural diagram of the clamping and positioning mechanism of the present invention;

fig. 3 is a structural diagram of the first clamping part and the second clamping part of the present invention;

FIG. 4 is a schematic structural view of a material roll driving mechanism according to the present invention;

fig. 5 is a schematic structural diagram of the turnover driving mechanism of the present invention;

fig. 6 is a schematic structural diagram of the roll-over braking mechanism of the present invention.

In the drawing, a fixed wall plate 100, a fixed support column 101, a turnover wall plate 200, a clamping and positioning unit 300, a clamping and positioning mechanism 301, a second clamping part 301-1, a sliding guide shaft 301-2, a shaftless jacking head 301-3, a first clamping part 301-4, a first clamping wall plate 301-4-1, a second clamping wall plate 301-4-2, a screw rod 301-5, a cylinder device 301-6, a middle support 301-7, a linear bearing 301-8, a turnover braking mechanism 400, a deceleration strip 401, a first positioning device 402, a second positioning device 403, a turnover driving mechanism 500, a driving motor 501, a deceleration device 502, a transmission chain 503, a material roll transmission mechanism 600, a middle transmission wheel 601, a primary transmission wheel 601-1, a secondary transmission wheel 601-2 and a transmission shaft 602.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

Referring to fig. 1, in the embodiment of the clamping device of the present invention, a plurality of fixed support columns 101 for connecting two opposite fixed wall panels 100 into a whole are disposed between the two fixed wall panels 100, and a circular turnover wall panel 200 is disposed on the fixed wall panel 100, a clamping positioning unit 300, a material roll transmission mechanism 600, a turnover driving mechanism 500 and a turnover braking mechanism 400 are disposed on the turnover wall panel 200, the turnover wall panel 200 is rotatably connected to the fixed wall panels 100 on two sides, the fixed wall panels 100 are fixed on the ground, the central axes of the turnover wall panels 200 on two sides are collinear, and a plurality of the fixed support columns 101 are connected between the turnover wall panels 200; the clamping and positioning unit 300 is connected between the turnover wall boards 200 at two sides, the clamping unit comprises at least two groups of clamping and positioning mechanisms 301, and a plurality of groups of clamping and positioning mechanisms 301 are uniformly arranged in an array at the center of the turnover wall board 200; the clamping and positioning mechanism 301 is connected between the turnover wallboards 200 in a sliding manner, so that the clamping and positioning of the material roll can be completed through the clamping and positioning mechanism 301; the material roll transmission mechanism 600 is arranged in the clamping and positioning unit 300, and the material roll transmission mechanism 600 is used for driving a material roll to rotate; the turnover driving mechanism 500 is in driving connection with the turnover wall board 200, and the turnover driving mechanism 500 is used for driving the turnover wall board 200 to rotate; the turnover braking mechanism 400 is connected with the turnover wall board 200 and used for realizing the speed reduction of the rotation of the turnover wall board 200 through the turnover braking mechanism 400.

Referring to fig. 2, the clamping and positioning mechanism 301 includes a sliding guide shaft 301-2, a first clamping portion 301-4, a second clamping portion 301-1, a cylinder device 301-6 and a positioning and moving mechanism, wherein the sliding guide shaft 301-2 is fixedly connected between the turnover wall boards 200; the first clamping part 301-4 and the second clamping part 301-1 are respectively connected with a sliding part, wherein the sliding part adopts a linear bearing 301-8, the sliding efficiency is improved, and the friction in the sliding process is greatly reduced, so that the first clamping part 301-4 and the second clamping part 301-1 slide along the axial direction of the sliding guide shaft 301-2 through the sliding parts; a shaftless material ejecting head 301-3 for clamping a material roll is respectively connected to the opposite sides of the first clamping part 301-4 and the second clamping part 301-1, the shaftless material ejecting heads 301-3 at the two sides are collinear, and a material roll transmission mechanism 600 is in transmission connection with the shaftless material ejecting head 301-3 at one side; wherein the linear moving mechanism is associated with the first clamping part 301-4 and the second clamping part 301-1; the positioning and moving mechanism is arranged on the first clamping part 301-4 or the second clamping part 301-1; the positioning and moving mechanism comprises a screw rod 301-5 and a threaded part, wherein the threaded part is arranged on the first clamping part 301-4 or the second clamping part 301-1, and the screw rod 301-5 is in threaded connection with the threaded part; one end of the screw rod 301-5 is connected to the rotating wall plate, a driving part is further connected to the end of the screw rod 301-5 in a transmission mode, the driving part is fixedly connected to the rotating wall plate, an encoder is connected to the driving part, a fixing part of the air cylinder device 301-6 is connected to the first clamping part 301-4, a moving part is connected to the second clamping part 301-1, an intermediate support 301-7 is further connected to the middle of the sliding guide shaft 301-2 as shown in the drawing, stable support for material rolls with large weight or large width size is guaranteed through the intermediate support 301-7, and bending of the sliding guide shaft 301-2 is avoided.

Referring to fig. 3, the first clamping portion 301-4 and the second clamping portion 301-1 are designed to have the same structure, wherein both clamping portions include a first clamping wall plate 301-4-1 and a second clamping wall plate 301-4-2, the first clamping wall plate 301-4-1 and the second clamping wall plate 301-4-2 are fixedly connected, a transmission gap is formed between the first clamping wall plate 301-4-1 and the second clamping wall plate 301-4-2, and the material roll transmission mechanism 600 for driving the shaftless material ejection head 301-3 is arranged in the transmission gap.

Referring to fig. 4, the material roll transmission mechanism 600 includes a motor and a transmission assembly, the motor is fixedly connected to the first clamping wall plate 301-4-1, an output shaft of the motor extends into the transmission gap, and a driving wheel is disposed on the output shaft of the motor; the transmission assembly comprises a transmission part and a driven part, and the transmission part is in transmission connection with the driven part and the driving wheel belt respectively; the transmission part comprises an intermediate transmission wheel 601 and a transmission shaft 602, the intermediate transmission wheel 601 is rotatably connected to the transmission shaft 602, and the transmission shaft 602 is fixedly connected between the first clamping wall plate 301-4-1 and the second clamping wall plate 301-4-2; the distance between the driving wheel and the middle driving wheel 601 can be adjusted, wherein the middle driving wheel 601 is provided with a primary driving wheel 601-1 and a secondary driving wheel 601-2, the primary driving wheel 601-1 and the secondary driving wheel 601-2 are integrally formed, and the radius of the primary driving wheel 601-1 is larger than that of the secondary driving wheel 601-2; the primary driving wheel 601-1 is in transmission connection with the driving wheel, the secondary driving wheel 601-2 outputs high speed through the transmission connection of the primary driving wheel 601-1 and the driving wheel, and further speed adjustment is achieved.

Referring to fig. 5, the turnover driving mechanism 500 includes a driving motor 501, a speed reducer 502 and a transmission chain 503, the driving motor 501 is in driving connection with the speed reducer 502, a driving wheel is connected to an output end of the speed reducer 502, a circle of chain gears is connected to an outer ring of the turnover table, and the driving wheel is in transmission connection with the chain gears through the transmission chain 503.

Referring to fig. 6, the turnover braking mechanism 400 includes a deceleration strip 401 disposed around an outer ring of the turnover wall panel 200, the deceleration strip 401 is connected at two ends thereof with a first positioning device 402 and a second positioning device 403, the first positioning device 402 is fixedly connected to a fixed wall panel 100, the second positioning device 403 is connected to a cylinder driving device, and the cylinder driving device is fixedly connected to the fixed wall panel 100, so that the cylinder driving device drives the second positioning device 403 to move.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims (10)

1. The utility model provides a clamping device is rolled up to multistation material, includes the fixed wallboard of two relative settings be provided with between the fixed wallboard and be used for connecting into an organic whole a plurality of fixed stay posts of fixed wallboard in both sides, its characterized in that still includes:

the turnover wall boards are respectively and rotatably connected to the fixed wall boards on the two sides, the central axes of the two turnover wall boards are collinear, and a plurality of fixed support columns are connected between the turnover wall boards;

the clamping and positioning unit is connected between the turnover wallboards at two sides and comprises at least two groups of clamping and positioning mechanisms, and the clamping and positioning mechanisms are uniformly arrayed in the center of the turnover wallboards; the clamping and positioning mechanism is connected between the turnover wallboards in a sliding manner, so that the clamping and positioning of the material roll are completed through the clamping and positioning mechanism;

the material roll transmission mechanism is arranged in the clamping and positioning unit and is used for driving a material roll to rotate;

the turnover driving mechanism is in driving connection with the turnover wall board and is used for driving the turnover wall board to rotate; and

and the turnover braking mechanism is connected with the turnover wallboard and is used for realizing the speed reduction of the rotation of the turnover wallboard through the turnover braking mechanism.

2. The multi-station material roll clamping device according to claim 1, wherein: the clamping positioning mechanism comprises:

the sliding guide shaft is fixedly connected between the turnover wallboards;

the first clamping part and the second clamping part are respectively connected with a sliding part, so that the first clamping part and the second clamping part slide along the axial direction of the sliding guide shaft through the sliding parts; the non-shaft material ejecting heads on two sides are collinear, and a material roll transmission mechanism is connected to the non-shaft material ejecting head on one side in a transmission mode;

a linear movement mechanism associated with the first clamping portion and the second clamping portion; and

and the positioning moving mechanism is arranged on the first clamping part or the second clamping part.

3. The multi-station material roll clamping device as claimed in claim 2, wherein: the positioning and moving mechanism comprises a screw rod and a screw thread part, the screw thread part is arranged on the first clamping part or the second clamping part, and the screw rod is in threaded connection with the screw thread part; one end of the screw rod is connected to the turnover wall plate, a driving portion is connected to the end of the screw rod in a transmission mode, the driving portion is fixedly connected to the turnover wall plate, and an encoder is connected to the driving portion.

4. The multi-station material roll clamping device as claimed in claim 2, wherein: the linear moving mechanism comprises a fixed part and a moving part, the fixed part is connected to the first clamping part, and the moving part is connected to the second clamping part; or the fixed part is connected to the second clamping part, and the movable part is connected to the first clamping part.

5. The multi-station material roll clamping device as claimed in claim 2, wherein: the first clamping portion comprises a first clamping wallboard and a second clamping wallboard, the first clamping wallboard is fixedly connected with the second clamping wallboard, a transmission gap is formed between the first clamping wallboard and the second clamping wallboard, and a material winding transmission mechanism used for driving the shaftless jacking head is arranged in the transmission gap.

6. The multi-station material roll clamping device according to claim 5, wherein: the material roll transmission mechanism comprises:

the motor is fixedly connected to the first clamping wall plate, an output shaft of the motor extends into the transmission gap, and a driving wheel is arranged on the output shaft of the motor; and

the transmission assembly comprises a transmission part and a driven part, and the transmission part is in transmission connection with the driven part and the driving wheel respectively; the transmission part comprises an intermediate transmission wheel and a transmission shaft, the intermediate transmission wheel is rotatably connected to the transmission shaft, and the transmission shaft is fixedly connected between the first clamping wallboard and the second clamping wallboard; the distance between the driving wheel and the middle driving wheel can be adjusted.

7. The multi-station material roll clamping device according to claim 1, wherein: the turnover driving mechanism comprises a driving device, a speed reducer and a transmission chain, the driving device is in driving connection with the speed reducer, a driving wheel is connected to the output end of the speed reducer, a circle of chain gears are connected to the outer ring of the turnover wall plate, and the driving wheel is in transmission connection with the chain gears through the transmission chain.

8. The multi-station material roll clamping device according to claim 1, wherein: the overturning braking mechanism comprises a deceleration strip arranged around an outer ring of the overturning wallboard, the two ends of the deceleration strip are respectively connected with a first positioning device and a second positioning device, the first positioning device is fixedly connected onto a fixed wallboard, the second positioning device is connected with a linear driving device, and the linear driving device is fixedly connected onto the fixed wallboard so as to drive the second positioning device to move through the linear driving device.

9. The multi-station material roll clamping device according to claim 4, wherein: the linear moving mechanism comprises an air cylinder device, the air cylinder device comprises an air cylinder wall and a push rod, the air cylinder wall is fixedly connected into the first clamping part through a clamping component, the air cylinder wall freely extends out of the wallboard, and the push rod is fixedly connected onto the second clamping part.

10. The multi-station material roll clamping device according to claim 1, wherein: the turnover wallboard is circular, a circular rotating cavity is processed on the fixed wallboard, a plurality of limiting rotating wheels are arranged on one ring at the edge of the rotating cavity, and the limiting rotating wheels are in contact with the turnover wallboard and rotate.

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