CN114275590A - Material transportation system and blowing subassembly - Google Patents
Material transportation system and blowing subassembly Download PDFInfo
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- CN114275590A CN114275590A CN202111657628.5A CN202111657628A CN114275590A CN 114275590 A CN114275590 A CN 114275590A CN 202111657628 A CN202111657628 A CN 202111657628A CN 114275590 A CN114275590 A CN 114275590A
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Abstract
The invention aims to provide a material conveying system and a discharging assembly. The material to be transported can be wound on the periphery of the coil material unit, and the guide roller is arranged at the downstream position of the press roller along the material transportation direction. The force application unit is used for applying an external force to the compression roller so as to enable the compression roller to be pressed against the surface of the material to be transported wound on the periphery of the coil material unit. Adopt this blowing subassembly and have the material transportation system of this blowing subassembly can prevent that the material from producing the phenomenon of tensile or shake in the transportation, and then guarantee the product quality who produces.
Description
Technical Field
The invention relates to the field of material transportation, in particular to a material transportation system and a discharging assembly.
Background
With the rapid development of social science and technology, narrow or low-tension materials are produced at the same time, and a material transportation system is often needed when the materials are processed.
Fig. 1 to 4 are schematic diagrams illustrating a discharging process of a discharging assembly of a conventional material transportation system. After the device is started, the material is drawn from the material roll 90 and continuously conveyed after passing through the fixed roller 91. In the process of continuously conveying the materials, the emptying assembly gradually changes from the initial state shown in fig. 1 to the intermediate state shown in fig. 2 to fig. 3, then changes to the state shown in fig. 4, and the materials are completely emptied in the state shown in fig. 4.
However, when the existing material transportation system discharges narrow-spoke or low-tension materials, the phenomenon of stretching or shaking can occur, and the quality of the produced products is greatly reduced.
Disclosure of Invention
The invention aims to provide a discharging assembly which can improve the transportation smoothness of narrow spokes or small tension.
The discharging assembly comprises a material rolling unit, a pressing roller, a guide roller and a force application unit. The material to be transported can be wound on the periphery of the coil material unit, and the guide roller is arranged at the downstream position of the press roller along the material transportation direction. The force application unit is used for applying an external force to the compression roller so as to enable the compression roller to be pressed against the surface of the material to be transported wound on the periphery of the material rolling unit. Wherein, at the blowing in-process, twine in the material external diameter of waiting to transport of coil stock unit periphery constantly reduces, the compression roller is in under the application of force unit effect, support all the time and press in waiting to transport the material surface to along with waiting to transport the reduction of material external diameter and the activity, the deflector roll by the application of force unit orders about, with the compression roller moves in step, so that the compression roller with interval between the deflector roll remains unchanged all the time. Order about deflector roll and compression roller through the application of force unit and move synchronously for in the transportation of material, even twine in the material external diameter of coil stock unit periphery and reduce, the first section length of material that transports between deflector roll and the compression roller also remains unchanged throughout, thereby prevents that the material from producing the phenomenon of tensile or shake in the transportation, and then guarantees the product quality who produces.
In one or more embodiments, the emptying assembly further comprises one or more guide rollers, the guide rollers are arranged at the downstream positions of the guide rollers along the material conveying direction, the guide rollers comprise fixed guide rollers, and the fixed guide rollers are the guide rollers adjacent to the guide rollers. In the process of reducing the outer diameter of the material to be transported, the guide roller is driven by the force application unit to act, so that the distance between the guide roller and the fixed guide roller is reduced or kept unchanged. Order about fixed deflector roll and compression roller through the application of force unit and move synchronously for in the transportation of material, even twine in the material external diameter of coil stock unit periphery and reduce, the material second section length of carrying out the transportation between deflector roll and the fixed deflector roll also remains unchanged throughout or reduces, thereby prevents that the material from producing the phenomenon of tensile or shake in the transportation, and then guarantees the product quality who produces.
In one or more embodiments, the discharging assembly further comprises a swing arm having a first end and a second end, the pressing roller is rotatably connected to the second end, and the guide roller is rotatably connected between the first end and the second end. The swing arm is in transmission connection with the force application unit, and the force application unit can drive the swing arm to rotate by taking the first end as a rotation center. The swing arm structure is adopted, the relative position relation between the materials in the transportation process can be met by a simple structure, namely only one power source is needed, the implementation and the realization are easy,
in one or more embodiments, the connection of the guide roller to the swing arm is closer to the first end than to the second end. So set up for can have shorter distance between connecting portion and the fixed deflector roll, produce tensile or the phenomenon of shake in the transportation with the further reduction material.
In one or more embodiments, the force application unit is a cylinder, and an actuating end of the cylinder is hinged between the first end and the second end. The cylinder is used as a driving piece, so that the size of the applied external force is easily adjusted, and the pressure applied to the material by the pressing roller is easily adjusted.
In one or more embodiments, the material to be transported has a maximum outer diameter when the material to be transported wound around the outer circumference of the coil unit reaches a maximum amount. When the material to be transported is in the state of having the maximum outer diameter, the force application unit can drive the compression roller to be separated from the surface of the material to be transported. Through the arrangement, one section of space can flow out between the compression roller and the surface of the material all the time, so that the feeding operation is facilitated.
Another object of the present invention is to provide a material transportation system, which includes a driving unit and the emptying assembly as described above, wherein the material is driven by the driving unit to be transported out of the rolling material unit.
In one or more embodiments, the material transportation system further includes a deviation rectifying photoelectric unit and a distance measuring unit, wherein the distance measuring unit is used for detecting a deviation value in the material transportation process, and the deviation rectifying photoelectric unit moves according to the deviation value so that a deviation rectifying executing mechanism controlled by the deviation rectifying photoelectric unit swings to eliminate the deviation value. Through the photoelectric and range unit that carries out feedback control to the photoelectric of rectifying for the material is more steady at this material transportation system's transportation, has further guaranteed the stability of product.
In one or more embodiments, the material transport system is for transporting material having a width of less than 100 mm.
The foregoing description is only an overview of the technical solutions of the present application, and the present application can be implemented according to the content of the description in order to make the technical means of the present application more clearly understood, and the following detailed description of the present application is given in order to make the above and other objects, features, and advantages of the present application more clearly understandable.
Drawings
Various additional advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Moreover, like reference numerals are used to refer to like elements throughout. In the drawings:
fig. 1 to 4 are schematic diagrams illustrating a discharging process of a discharging assembly of a conventional material transportation system;
FIG. 5 is a schematic view of a drop assembly according to some embodiments of the present application;
FIGS. 6-9 are schematic views illustrating the operation of the dispensing assembly according to some embodiments of the present disclosure;
FIG. 10 is a partial schematic view of a material transport system according to some embodiments of the present application;
FIG. 11 is a schematic diagram of a rectification photovoltaic according to some embodiments of the present application.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are merely used to more clearly illustrate the technical solutions of the present application, and therefore are only examples, and the protection scope of the present application is not limited thereby.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions.
As shown in fig. 1 to 4, when the existing discharging device is used for discharging, the quality of the product produced by the narrow or low-tension material is low.
The inventor found that as shown in fig. 1 to 4, the outer diameter of the material in the material roll 90 gradually decreases along with the discharging process, so that the length of a section 92 between the material and the adjacent downstream fixed roller 91 gradually increases, and under the same tension, the material with narrow width or small tension stretches or shakes at the section 92, so that the quality of the produced product is reduced.
After the research of the applicant, the applicant finds that the phenomenon of the lifting or shaking of the narrow or low-tension material in the conveying process can be reduced by arranging the discharging assembly with a proper configuration in the discharging process, so that the space between the material roller and the roller for conveying the material and the space between the adjacent rollers are always kept inconvenient or reduced in the material conveying process.
According to some embodiments of the present application, please refer to fig. 5, fig. 5 is a schematic view of a discharging assembly according to some embodiments of the present application.
The discharging assembly comprises a rolling unit 1, a pressing roller 2, a guide roller 3 and a force application unit 4. The material to be transported can be wound on the periphery of the coil material unit 1, and the guide roller 3 is arranged at the downstream position of the press roller 2 along the material transportation direction. The force application unit 4 is used for applying an external force to the compression roller 2, so that the compression roller 2 is pressed against the surface of the material to be transported wound on the periphery of the coil material unit 1. Wherein, at the blowing in-process, twine and constantly reduce in the waiting material external diameter of 1 periphery of coil stock unit, compression roller 2 supports all the time and presses in waiting to transport the material surface under the effect of force application unit 4 to along with waiting to transport the reduction of material external diameter and the activity, deflector roll 3 is ordered about by force application unit 4, moves with compression roller 2 in step, so that the interval between compression roller 2 and the deflector roll 3 remains unchanged all the time.
The rolls described herein may be referred to as roll shafts, which are cylindrical elements that can rotate on a machine. When the roller shaft rotates along the axis of the roller shaft, the material can be conveyed through friction force.
In a specific embodiment, the material rolling unit 1 may also be a roller structure, and the material is wound around the periphery of the roller structure circle by circle to form a feeding unit in the emptying assembly.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
During the transport of the material, the reel unit 1 is rotated continuously, so that the strip-shaped material is transported out of the reel unit 1, guided via guide rollers 3 adjacent thereto and optionally by one or more roller-shaped transport units. The roll unit 1, the guide rollers 3 and optionally one or more roller-shaped transport units together define a material transport direction in the emptying assembly.
The compression roller 2 is always abutted to and pressed on the surface of a material to be transported wound on the periphery of the coil stock unit 1 under the action of the force application unit 4, and in the continuous transportation process of the material, the compression roller 2 continuously rotates, so that the material is continuously transported between the compression roller 2 and the force application unit 4, and meanwhile, the compression roller 2 plays a role in the transportation process, flattening the material and keeping the tension in the material transportation process.
During transportation, because the material is constantly transported away from coil stock unit 1 for the material external diameter of twining in coil stock unit 1 periphery can be along with the increase of material transportation time and constantly reduce, as shown in fig. 6-9, when the material external diameter of twining in coil stock unit 1 periphery reduces, compression roller 2 can be by the application of force unit 4 application of force, thereby constantly move ground, support and press in the material periphery. At this time, if the position of the guide roller 3 is maintained, the distance between the guide roller 3 and the press roll 2 is continuously increased, so that the material between the guide roller 3 and the press roll 2 is shaken.
Order about deflector roll 3 and compression roller 2 through application of force unit 4 and move synchronously for in the transportation of material, even twine in the material external diameter of 1 periphery of coil stock unit and reduce, the first section 81 lengths of material that carry out the transportation between deflector roll 3 and the compression roller 2 also remain unchanged throughout, thereby prevent that the material from producing the phenomenon of tensile or shake in the transportation, and then guarantee the product quality who produces.
According to some embodiments of the present application, the drop assembly further comprises one or more guide rollers 5. Guide roller 5 sets up in the downstream position of deflector roll 3 along material transportation direction, and guide roller 5 is including fixed deflector roll 51, and fixed deflector roll 51 is the deflector roll 5 adjacent with deflector roll 3. In the process of reducing the outer diameter of the material to be transported, the guide roller 3 is driven by the force application unit 4 to act, so that the distance between the guide roller 3 and the fixed guide roller 51 is reduced or kept unchanged.
In the description of the embodiments of the present application, the technical terms "first", "second", and the like are used only for distinguishing different objects, and are not to be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary-secondary relationship of the technical features indicated.
In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise. The number of guide rollers 5 as shown in the drawing is two, and in fact, the number of pull rollers 5 may be set to other suitable numbers depending on the material transport length.
During the transport of the material, the roll unit 1, the guide roller 3 and the one or more guide rollers 5 together define the transport direction of the material in the emptying assembly.
When the material passes through the guide roller 3 and continues to be transported downstream, the material is firstly contacted with the fixed guide roller 51. When the outer diameter of the material wound around the periphery of the coil unit 1 is reduced and the pressure roller 2 follows the guide roller 3, if the position of the fixed guide roller 51 is fixed, the distance between the fixed guide roller 51 and the guide roller 3 is continuously increased, so that the material between the guide roller 3 and the fixed guide roller 51 is shaken.
The fixed guide roller 51 is driven by the force application unit 4 to synchronously move with the guide roller 3 and the press roller 2, and the fixed guide roller 51 is fixed, so that in the transportation process of materials, even if the outer diameter of the materials wound on the periphery of the coil unit 1 is reduced, the length of the second section 82 of the materials transported between the guide roller 3 and the fixed guide roller 51 is always kept unchanged or reduced, the phenomenon that the materials are stretched or shaken in the transportation process is prevented, and the quality of the produced products is ensured.
According to some embodiments of the present application, the emptying assembly further comprises a swing arm 6. The swing arm 6 has a first end 61 and a second end 62, the press roller 2 is rotatably connected to the second end 62, and the guide roller 3 is rotatably connected between the first end 61 and the second end 62. The swing arm 6 is in transmission connection with the force application unit 4, and the force application unit 4 can drive the swing arm 6 to rotate around the first end 61 as a rotation center.
The pressure roller 2 may be rotatably connected to the second end 62 by means of, for example, a hinge, and in particular, in one embodiment, the second end 62 of the swing arm 6 has a hole in which the pressure roller 2 is rotatably connected. Alternatively, in some other suitable embodiments, the pressure roller 2 may be rotatably coupled to the second end 62 of the swing arm 6 by a member such as a bearing.
Likewise, the guide roller 3 may be rotatably connected, such as by a hinge, between the first end 61 and the second end 62 of the swing arm 6. Specifically, as in the embodiment shown in the drawings, the swing arm 6 has a connecting portion 63, the connecting portion 63 is protrudingly provided at a middle portion of the swing arm 6, a hole is provided in the connecting portion 63, and the guide roller 3 is rotatably connected in the hole.
The first end 61 of the swing arm 6 is pivotally secured to the discharge assembly by a hinge or other suitable connection, optionally in one embodiment a bracket is included in the discharge assembly and the first end 61 of the swing arm 6 is hinged to the bracket of the discharge assembly.
When the force application unit 4 is activated, the swing arm 6 rotates around the first end 61 as a rotation center, and synchronously drives the pressing roller 2 connected to the second end of the swing arm 6 and the guide roller 3 connected to the middle portion of the swing arm 6 to move synchronously, so that the distance between the pressing roller 2 and the guide roller 3 is always kept constant, and the distance between the guide roller 3 and the fixed guide roller 51 is reduced or kept constant.
Alternatively, in other embodiments different from those shown in the drawings, the press roller 2 and/or the guide roller 3 and/or the fixed guide roller 51 may be driven simultaneously and synchronously by a plurality of force application units so as to satisfy the relative positional relationship with each other during the material transportation as described above.
With the structure of the swing arm 6 as shown in fig. 5 to 9, it is possible to realize a structure satisfying the relative positional relationship with each other in the aforementioned material transporting process, with a simple structure, i.e., only one power source, easy to implement and realize,
according to some embodiments of the present application, the connection of the guide roller 3 to the swing arm 6 is closer to the first end 61 than to the second end 62.
Specifically, unlike the illustration, the connecting portion 63 is closer to the first end 61 than to the second end 62. So set up for can have shorter distance between connecting portion 63 and the fixed deflector roll 51, in order to further reduce the material and produce the phenomenon of tensile or shake in the transportation.
According to some embodiments of the present application, as shown in the figures, the force application unit 4 is a cylinder, and the actuating end 41 of the cylinder is hinged between the first end 61 and the second end 62.
When the cylinder is actuated, the actuating end 41 of the cylinder can extend out of or retract into the actuating cylinder of the cylinder, and when the actuating end 41 of the cylinder extends out, the swing arm 6 can be driven to rotate in a linkage manner.
The cylinder is used as a driving piece, so that the size of the applied external force is easily adjusted, and the pressure applied to the material by the compression roller 2 is easily adjusted.
According to some embodiments of the present application, the material to be transported has the largest outer diameter when the maximum amount of the material to be transported wound around the outer circumference of the coil unit 1 is reached. When the material to be transported is in a state of having the maximum outer diameter, the force application unit 4 can drive the press roller 2 to be separated from the surface of the material to be transported.
For example, in the embodiment shown in fig. 5, the material to be transported wound around the periphery of the material rolling unit 1 reaches the maximum, and at this time, the air cylinder can still be actuated to drive the swing arm 6 to continue to rotate clockwise with the first end 61 as the rotation center, so that the pressing roller 2 is away from the material surface on the periphery of the material rolling unit 1.
Through the aforesaid setting, can flow out one section space all the time between compression roller 2 and material surface to the material loading operation of being convenient for.
In another aspect, according to some embodiments of the present application, there is also provided a material transportation system, which includes a driving unit and the emptying assembly as described in one or more of the above embodiments, wherein the material is driven by the driving unit to be transported out of the rolling unit.
The drive unit may be a roller-like member which, when rotated, is capable of driving the material in the material conveying direction by friction.
The material transportation system is used for transporting materials with narrow width, namely the width is less than 100mm, and compared with the existing material transportation mechanism, the material transportation system can ensure the stability of material transportation and the quality of the transported materials.
Referring to fig. 10, according to some embodiments of the present application, fig. 10 is a partial schematic view of a material transport system according to some embodiments of the present application. The material transportation system further comprises a deviation rectifying photoelectric device 71 and a distance measuring unit 72, wherein the distance measuring unit 72 is used for detecting a deviation value in the material transportation process, and the deviation rectifying photoelectric device 71 moves according to the deviation value so that a deviation rectifying executing mechanism controlled by the deviation rectifying photoelectric device swings to eliminate the deviation value.
Specifically, referring to fig. 11, fig. 11 is a schematic diagram of a rectification photo-electric device 71 according to some embodiments of the present application. The rectification photo 71 includes a photo unit 711, a photo moving base 712, a servo motor 713, and a lead screw 714.
The distance measuring unit 72 can detect the distance between the edge of the material in the transported material and a set reference, namely a deviation value, and then the servo motor 713 is controlled to rotate by the control unit according to the instruction, the servo motor 713 rotates to enable the photoelectric unit 711 to move left and right through the photoelectric moving seat 712 through the lead screw 714, and then the deviation correcting actuator is controlled to swing left and right through the deviation correcting photoelectric 71 to adjust the position of the edge of the material so that the edge of the material reaches a preset ideal position.
Alternatively, in one particular embodiment, the ranging unit 72 is a CCD camera.
Through the deviation rectification photoelectricity 71 and the distance measuring unit 72 for carrying out feedback adjustment on the deviation rectification photoelectricity 71, the transportation process of the material in the material transportation system is more stable, and the stability of the product is further ensured. When the deviation rectification is performed by adopting the deviation rectification photoelectricity 71, the width of the material is not limited.
According to some embodiments of the present application, please refer to fig. 5 to 9 in combination, there is provided a discharging assembly, which includes a coil stock unit 1, a press roll 2, a guide roll 3, a cylinder 4, a guide roll 5 and a swing arm 6. The first end 61 of the swing arm 6 is configured as the rotation center of the swing arm 6, the second end 62 of the swing arm 6 is configured as the press roller 2, the cylinder 4 is hinged at the middle position of the swing arm 6, and the guide roller 3 is hinged at the middle position of the swing arm 6. With the height position of the guide roller 5 as a reference, the coil unit 1 is disposed below the guide roller 5, the first end 61 of the swing arm 6 is disposed above the guide roller 5, and when the cylinder 4 is actuated, the swing arm 6 rotates around the first end 61 to drive the press roller 2 and the guide roller 3 to actuate synchronously. Since the press roller 2 and the guide roller 3 are both arranged on the swing arm 6, the distance between the two is kept constant during the rotation of the swing arm 6. And the first end 61 of the swing arm 6 is disposed above the guide roller 5 so that the distance between the guide roller 3 and the fixed guide roller 51 can be driven to be inconvenient or shortened.
In the description of the embodiments of the present application, the term "and/or" is only one kind of association relationship describing an associated object, and means that three relationships may exist, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
In the description of the embodiments of the present application, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, and for example, may be fixedly connected, detachably connected, or integrated; mechanical connection or electrical connection is also possible; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill 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 depart from the spirit and scope of the present disclosure, and the present disclosure should be construed as being covered by the claims and the specification. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present application is not intended to be limited to the particular embodiments disclosed herein but is to cover all embodiments that may fall within the scope of the appended claims.
Claims (9)
1. A drop assembly, comprising:
the material rolling unit is used for winding the material to be transported on the periphery of the material rolling unit;
a compression roller;
the guide roller is arranged at the downstream position of the compression roller along the material conveying direction; and
the force application unit is used for applying an external force to the compression roller so as to enable the compression roller to be pressed against the surface of the material to be transported wound on the periphery of the coil material unit;
wherein, at the blowing in-process, twine in the material external diameter of waiting to transport of coil stock unit periphery constantly reduces, the compression roller is in under the application of force unit effect, support all the time and press in waiting to transport the material surface to along with waiting to transport the reduction of material external diameter and the activity, the deflector roll by the application of force unit orders about, with the compression roller moves in step, so that the compression roller with interval between the deflector roll remains unchanged all the time.
2. The emptying assembly of claim 1, further comprising:
the guide rollers are arranged at the downstream positions of the guide rollers along the material conveying direction, and comprise fixed guide rollers which are adjacent to the guide rollers;
in the process of reducing the outer diameter of the material to be transported, the guide roller is driven by the force application unit to act, so that the distance between the guide roller and the fixed guide roller is reduced or kept unchanged.
3. The emptying assembly of claim 2, further comprising:
the pressure roller is rotatably connected to the second end, and the guide roller is rotatably connected between the first end and the second end;
the swing arm is in transmission connection with the force application unit, and the force application unit can drive the swing arm to rotate by taking the first end as a rotation center.
4. The discharge assembly of claim 3, wherein said guide roller is connected to said swing arm closer to said first end than to said second end.
5. The emptying assembly of claim 3, wherein the force applying unit is a cylinder, and an actuating end of the cylinder is hinged between the first end and the second end.
6. The emptying assembly of claim 3, wherein when the maximum amount of material to be transported wound around the periphery of the coil unit is reached, the material to be transported has a maximum outer diameter;
when the material to be transported is in the state of having the maximum outer diameter, the force application unit can drive the compression roller to be separated from the surface of the material to be transported.
7. A material transport system comprising a drive unit and a drop assembly as claimed in any one of claims 1 to 6, material being driven out of the roll unit by the drive unit.
8. The material transporting system as claimed in claim 7, further comprising a deviation-correcting photo and a distance-measuring unit for detecting a deviation value during the material transporting process, the deviation-correcting photo moving according to the deviation value to swing a deviation-correcting actuator controlled by the deviation-correcting photo to remove the deviation value.
9. The material transport system of claim 7, wherein the material transport system is configured to transport material having a width of less than 100 mm.
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| CN202111657628.5A CN114275590A (en) | 2021-12-30 | 2021-12-30 | Material transportation system and blowing subassembly |
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| CN202111657628.5A CN114275590A (en) | 2021-12-30 | 2021-12-30 | Material transportation system and blowing subassembly |
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| CN213140789U (en) * | 2020-09-02 | 2021-05-07 | 杭州锦添装饰纸有限公司 | Deviation rectifying rewinding machine suitable for wide-width paper and narrow-width paper |
| CN113511531A (en) * | 2021-09-14 | 2021-10-19 | 山东华滋自动化技术股份有限公司 | Online deviation rectifying and material pressing assembly for unwinding material coil |
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