Winding and unwinding conveying line

Abstract

The invention provides a winding and unwinding conveying line which comprises an unwinding mechanism, a winding mechanism, a conveying mechanism and a winding mechanism. A tensioning mechanism; a labeling platform; the U-shaped ultrasonic sensor is used for detecting the edge position of the roll paper and detecting the deviation value between the edge position and a set position; the front end deviation rectifying device comprises an electric driver and a deviation rectifying guide mechanism, and the electric driver is used for driving the deviation rectifying guide mechanism to rectify deviation of the roll paper according to the deviation value; the winding mechanism comprises a third servo motor, an L-shaped base, a guide rail sliding block and an electric cylinder, the guide rail sliding block is arranged in a sliding mode, the lower end of the L-shaped base is connected with the guide rail sliding block, and the electric cylinder is connected with the L-shaped base and used for driving the L-shaped base to slide according to the edge position, detected by the U-shaped ultrasonic sensor, of the roll paper. According to the roll paper conveying device, long-distance intermittent or continuous accurate conveying of roll paper can be achieved.

Description

Technical Field

[0001] The present application relates to the technical field of roll paper conveying, and in particular to a winding and unwinding conveyor line. Background Art

[0002] At present, most of the self-adhesive labeling equipment adopts roll-fed labeling, but gravure printing adopts flat paper printing, and there is no roll printing equipment. Therefore, it is necessary to make the flat label of gravure printing into roll-fed label. One of the core technologies that need to be solved in the equipment development process is: the conveying of roll base paper. Summary of the invention

[0003] The present application aims to solve at least one of the above-mentioned technical problems.

[0004] To this end, the first purpose of the present application is to provide a winding and unwinding conveyor line.

[0005] To achieve the first purpose of the present application, the technical solution of the first aspect of the present invention provides a winding and unwinding conveyor line, including: an unwinding mechanism, including a first servo motor and an air shaft, the first servo motor is connected to the air shaft, and is used to drive the air shaft to rotate, and the air shaft is used to sleeve a roll of paper; a tensioning mechanism is used to tension the roll of paper; a labeling platform, a cavity is provided in the labeling platform, the cavity is used to be connected to a negative pressure, and an air hole is provided on the upper surface of the labeling platform, and the air hole is connected to the cavity; a U-shaped ultrasonic sensor is used to detect the edge position of the roll of paper and detect the deviation between the edge position and the set position; a front-end correction device, including The invention comprises an electric drive and a deviation correction guide mechanism, wherein the electric drive is used to drive the deviation correction guide mechanism to correct the deviation of the web according to the deviation amount; the winding mechanism comprises a third servo motor, an L-shaped base, a guide rail slider and an electric cylinder, wherein the third servo motor is fixed on the L-shaped base, the guide rail slider is slidably arranged, the lower end of the L-shaped base is connected to the guide rail slider, and the electric cylinder is connected to the L-shaped base, and is used to drive the L-shaped base to slide according to the edge position of the web detected by the U-shaped ultrasonic sensor; wherein the unwinding mechanism, the tensioning mechanism, the front end deviation correction device, the labeling platform, the U-shaped ultrasonic sensor and the winding mechanism are arranged in sequence in the conveying direction of the web.

[0006] In this technical solution, the unwinding and winding conveyor line includes an unwinding mechanism, a tensioning mechanism, a front-end deviation correction device, a labeling platform, a U-shaped ultrasonic sensor and a winding mechanism. The unwinding mechanism mainly realizes the unwinding function of the roll base paper. The servo motor is used as the power source. The air shaft expands the inner ring of the roll base paper. The air shaft is mechanically connected to the servo motor. The servo motor drives the air shaft to rotate to achieve the unwinding function. The mechanism can realize intermittent or continuous unwinding. In order to ensure the constant tension of the roll base paper, the torque of the servo motor changes with the change of the roll paper diameter. The tensioning mechanism mainly tensions the base paper. The labeling platform adopts a cavity structure inside, which is connected to the negative pressure. When labeling, the labeling platform is connected to the negative pressure, and an air cavity is formed inside. The base paper is adsorbed on the platform surface through the air vents on the upper surface to ensure the flatness of the base paper. The base paper passes through the middle of the U-shaped ultrasonic sensor. The U-shaped ultrasonic sensor detects the edge position of the roll by detecting the edge of the base paper, and reads the deviation between the actual position and the set position. The electric driver drives the correction guide mechanism to perform correction action according to the deviation, and guides the roll to the preset position. In addition to the functions of rotating rewinding and tightening the roll paper, the rewinding mechanism also has the function of correcting the base paper belt. The servo motor is fixed on the L-shaped base. The lower end of the L-shaped base is equipped with a guide slider. The L-shaped base is connected to the electric cylinder through a connector. The ultrasonic sensor detects the edge of the base paper to control the telescopic action of the electric cylinder to realize the action of the L-shaped base, that is, the function of correcting the base paper belt, and ensure the neatness of the roll rewinding. The problem of long-distance accurate transportation of the roll base paper is solved by the rewinding and unwinding conveyor line. While meeting the basic functions, the conveyor line is also designed with a labeling platform and has the function of front and rear correction, which ensures the high accuracy of label transfer and the neatness of the roll paper rewinding. At the same time, the conveyor line can keep the tension of the roll paper constant during the entire transportation process.

[0007] In addition, the technical solution provided by this application may also have the following additional technical features: In some technical solutions, optionally, the tensioning mechanism includes two driven wheels and a bracket, the two driven wheels are fixed on the bracket in parallel, and the web is wound between the two driven wheels.

[0008] In this technical solution, the tensioning mechanism includes two driven wheels and a bracket, the two driven wheels are fixed on the bracket in parallel, and the web is wound between the two driven wheels.

[0009] In some technical solutions, optionally, the tensioning mechanism further includes a second servo motor, and the second servo motor is connected to one end of the bracket.

[0010] In this technical solution, the tensioning mechanism also includes a second servo motor, and the second servo motor is connected to one end of the bracket.

[0011] In some technical solutions, optionally, the winding and unwinding conveyor line also includes: a controller, which is respectively connected to the U-shaped ultrasonic sensor and the electric driver, for receiving the voltage signal of the deviation detected by the U-shaped ultrasonic sensor, and amplifying and calibrating the voltage signal before outputting it to the electric driver.

[0012] In this technical solution, the winding and unwinding conveyor line also includes a controller, which is respectively connected to the U-shaped ultrasonic sensor and the electric driver, and is used to receive the voltage signal of the deviation detected by the U-shaped ultrasonic sensor, and amplify and calibrate the voltage signal before outputting it to the electric driver.

[0013] In some technical solutions, optionally, the controller is also connected to the electric cylinder to control the extension and retraction of the electric cylinder according to the edge position of the roll paper detected by the U-shaped ultrasonic sensor.

[0014] In this technical solution, the controller is also connected to the electric cylinder and is used to control the extension and retraction of the electric cylinder according to the edge position of the roll paper detected by the U-shaped ultrasonic sensor.

[0015] In some technical solutions, optionally, the winding and unwinding conveyor line further includes: a reversing valve for switching the cavity to be connected to or isolated from the negative pressure.

[0016] In this technical solution, the winding and unwinding conveyor line also includes a reversing valve, which is used to switch the cavity to be connected to or isolated from the negative pressure.

[0017] In some technical solutions, optionally, there are multiple vent holes, and the multiple vent holes are evenly arranged on the upper surface of the labeling platform.

[0018] In this technical solution, there are multiple vent holes, and the multiple vent holes are evenly arranged on the upper surface of the labeling platform.

[0019] In some technical solutions, optionally, a negative pressure connector is provided at the bottom of the labeling platform, and the negative pressure connector is used to connect to the negative pressure.

[0020] In this technical solution, a negative pressure connector is provided at the bottom of the labeling platform, and the negative pressure connector is used to connect to the negative pressure.

[0021] In some technical solutions, optionally, the winding and unwinding conveyor line further includes: a driven roller, which is arranged between the tensioning mechanism and the labeling platform, and is used to tension the roll paper and partially support the paper.

[0022] In this technical solution, the reeling and unreeling conveyor line also includes a driven roller, which is arranged between the tensioning mechanism and the labeling platform and is used to tension and partially support the roll paper. Specifically, the horizontal transmission distance of the roll bottom paper is 2.5m or longer. In order to ensure the long-distance transmission of the bottom paper and to enable effective transmission between various mechanisms, a driven roller is installed on the transmission route of the bottom paper to partially support and tension the bottom paper.

[0023] In some technical solutions, optionally, the winding and unwinding conveyor line also includes: a quality detection platform, which is arranged between the labeling platform and the U-shaped ultrasonic sensor, and is used to detect the labeling quality.

[0024] In this technical solution, the winding and unwinding conveyor line also includes a quality detection platform, which is arranged between the labeling platform and the U-shaped ultrasonic sensor and is used to detect the labeling quality.

[0025] Additional aspects and advantages of the present application will become apparent in the following description or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the main structure of a winding and unwinding conveyor line according to one embodiment of the present application; Figure 2 This is a schematic diagram of the top view of the winding and unwinding conveyor line according to one embodiment of the present application; Figure 3 This is a schematic side view of the structure of a winding and unwinding conveyor line according to one embodiment of the present application; Figure 4 This is a schematic diagram of the main structure of a tensioning mechanism according to an embodiment of the present application; Figure 5 This is a schematic diagram of a top view of a tensioning mechanism according to an embodiment of the present application; Figure 6 This is a side structural schematic diagram of a tensioning mechanism according to an embodiment of the present application; Figure 7 This is a schematic diagram of the main structure of a labeling platform according to an embodiment of the present application; Figure 8 This is a schematic diagram of a top view of a labeling platform according to an embodiment of the present application; Fig. 9 For along Figure 8 Schematic diagram of the cross-sectional structure of AA; Fig.10 This is a schematic diagram of the main structure of a winding mechanism according to an embodiment of the present application; Fig.11This is a schematic diagram of a top view of a winding mechanism according to an embodiment of the present application; Fig.12 This is a side structural schematic diagram of a winding mechanism according to an embodiment of the present application; Fig.13 This is a schematic block diagram of the structure of a front-end deviation correction device according to an embodiment of the present application; Fig.14 This is a schematic structural diagram of a winding and unwinding conveyor line according to an embodiment of the present application; Fig.15 This is a schematic structural diagram of a winding and unwinding conveyor line according to an embodiment of the present application; Fig.16 A schematic diagram of the relationship between the first servo motor and the web diameter according to an embodiment of the present application; Fig.17 Schematic diagram of the relationship between the third servo motor and the diameter of the web according to an embodiment of the present application.

[0027] in, Figures 1 to 15 The corresponding relationship between the reference numerals and component names in the figure is: 10: Winding and unwinding conveyor line; 110: unwinding mechanism; 112: first servo motor; 114: pneumatic shaft; 120: tensioning mechanism; 122: second servo motor; 124: driven wheel; 126: bracket; 130: labeling platform; 132: cavity; 134: vent; 136: negative pressure connector; 140: U-shaped ultrasonic sensor; 150: front end correction device; 152: electric drive; 154: correction guide mechanism; 160: winding mechanism; 162: third servo motor; 164; L-shaped base; 166: guide rail slider; 168: electric cylinder; 170: driven roller; 180: quality inspection platform; 190: controller; 210: reversing valve. DETAILED DESCRIPTION

[0028] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0030] Refer to the following Figures 1 to 17 The winding and unwinding conveyor lines according to some embodiments of the present application are described.

[0031] like Figure 1 , Figure 2, Figure 3 , Fig.13 As shown, an embodiment of the first aspect of the present invention provides a winding and unwinding conveyor line 10, including: an unwinding mechanism 110, including a first servo motor 112 and an inflatable shaft 114, the first servo motor 112 is connected to the inflatable shaft 114, and is used to drive the inflatable shaft 114 to rotate, and the inflatable shaft 114 is used to sleeve a roll of paper; a tensioning mechanism 120, used to tension the roll of paper; a labeling platform 130, a cavity 132 is provided in the labeling platform 130, the cavity 132 is used to be connected to a negative pressure, and a vent 134 is provided on the upper surface of the labeling platform 130, and the vent 134 is connected to the cavity 132; a U-shaped ultrasonic sensor 140, used to detect the edge position of the roll of paper, and detect the deviation between the edge position and the set position; a front-end correction device 150, including an electric driver 152 and a correction guide Mechanism 154, the electric driver 152 is used to drive the correction guide mechanism 154 to correct the web according to the deviation amount; the winding mechanism 160 includes a third servo motor 162, an L-shaped base 164, a guide slider 166 and an electric cylinder 168, the third servo motor 162 is fixed on the L-shaped base 164, the guide slider 166 is slidably arranged, the lower end of the L-shaped base 164 is connected to the guide slider 166, and the electric cylinder 168 is connected to the L-shaped base 164, and is used to drive the L-shaped base 164 to slide according to the edge position of the web detected by the U-shaped ultrasonic sensor 140; wherein the unwinding mechanism 110, the tensioning mechanism 120, the front end correction device 150, the labeling platform 130, the U-shaped ultrasonic sensor 140, and the winding mechanism 160 are arranged in sequence in the conveying direction of the web.

[0032] In this embodiment, the winding and unwinding conveyor line 10 includes an unwinding mechanism 110, a tensioning mechanism 120, a front-end deviation correction device 150, a labeling platform 130, a U-shaped ultrasonic sensor 140 and a winding mechanism 160. The unwinding mechanism 110 mainly realizes the unwinding function of the roll base paper. The servo motor is used as the power source. The air shaft 114 expands the inner ring of the roll base paper. The air shaft 114 is mechanically connected to the servo motor. The servo motor drives the air shaft 114 to rotate to achieve the unwinding function. The mechanism can realize intermittent or continuous unwinding. In order to ensure that the tension of the roll base paper is constant, the torque of the servo motor changes with the change of the roll paper diameter. The tensioning mechanism 120 mainly tensions the base paper. The labeling platform 130 adopts a cavity 132 structure inside, which is connected to the negative pressure. When labeling, the labeling platform 130 is connected to the negative pressure, and an air cavity is formed inside. Through the vent 134 on the upper surface, the base paper is adsorbed on the platform surface to ensure the flatness of the base paper. The bottom paper passes through the middle of the U-shaped ultrasonic sensor 140. The U-shaped ultrasonic sensor 140 detects the edge position of the coil by detecting the edge of the bottom paper, and reads the deviation between the actual position and the set position. The electric driver 152 drives the correction guide mechanism 154 to perform a correction action according to the deviation, and guides the coil to the preset position. In addition to the functions of rotating winding and tightening the roll paper, the winding mechanism 160 also has the function of correcting the bottom paper belt. The servo motor is fixed on the L-shaped base 164. The lower end of the L-shaped base 164 is equipped with a guide slider 166. The L-shaped base 164 is connected to the electric cylinder 168 through a connecting piece. The ultrasonic sensor detects the edge of the bottom paper to control the telescopic action of the electric cylinder 168, so as to realize the action of the L-shaped base 164, that is, the function of correcting the bottom paper belt, and ensure the neatness of the roll winding. The problem of long-distance accurate transportation of roll base paper is solved by the winding and unwinding conveyor line 10. While meeting the basic functions, the conveyor line is also designed with a labeling platform 130 and has front and rear deviation correction functions, which ensures high accuracy of label transfer and neatness of roll paper winding. At the same time, the conveyor line can keep the tension of the roll paper constant during the entire transportation process.

[0033] like Figure 4 , Figure 5 , Figure 6 As shown, in some embodiments, optionally, the tensioning mechanism 120 includes two driven wheels 124 and a bracket 126 , the two driven wheels 124 are fixed in parallel on the bracket 126 , and the web is wound between the two driven wheels 124 .

[0034] In some embodiments, optionally, the tensioning mechanism 120 further includes a second servo motor 122 , and the second servo motor 122 is connected to one end of the bracket 126 .

[0035] like Fig.14As shown, in some embodiments, optionally, the winding and unwinding conveyor line 10 also includes a controller 190, which is respectively connected to the front-end correction device 150 and the electric driver 152, and is used to receive a voltage signal of the deviation detected by the front-end correction device 150, and amplify and calibrate the voltage signal before outputting it to the electric driver 152.

[0036] In some embodiments, optionally, the controller 190 is also connected to the electric cylinder 168 for controlling the extension and retraction of the electric cylinder 168 according to the edge position of the web detected by the U-shaped ultrasonic sensor 140 .

[0037] like Fig.15 As shown, in some embodiments, optionally, the winding and unwinding conveyor line 10 further includes a reversing valve 210, and the reversing valve 210 is used to switch the cavity 132 to be connected to or isolated from the negative pressure.

[0038] In some embodiments, optionally, there are multiple vent holes 134 , and the multiple vent holes 134 are evenly arranged on the upper surface of the labeling platform 130 .

[0039] In some embodiments, optionally, a negative pressure connector 136 is provided at the bottom of the labeling platform 130, and the negative pressure connector 136 is used to connect to a negative pressure.

[0040] In some embodiments, the unwinding and winding conveyor line 10 may further include a driven roller 170, which is disposed between the tensioning mechanism 120 and the labeling platform 130 and is used to tension and partially support the roll paper. Specifically, the horizontal transmission distance of the roll base paper is 2.5 m or longer. In order to ensure the long-distance transmission of the base paper and to enable effective transmission between various mechanisms, a driven roller 170 is installed on the transmission route of the base paper to partially support and tension the base paper.

[0041] In some embodiments, optionally, the winding and unwinding conveyor line 10 further includes a quality detection platform 180 , which is disposed between the labeling platform 130 and the U-shaped ultrasonic sensor 140 for detecting the labeling quality.

[0042] like Figures 1 to 12As shown, according to a specific embodiment of the winding and unwinding conveyor line 10 proposed in the present application, while meeting the basic function of long-distance conveying of roll paper, it is also designed with a labeling platform 130 and a detection platform, and has front and rear deviation correction functions, thereby ensuring high precision of label transfer and neatness of roll paper winding. At the same time, the conveyor line can keep the tension of the roll paper constant during the entire conveying process. Under the control of PLC, the rotation of winding and unwinding adopts servo motor as the power mechanism, which has high rotation accuracy and excellent controllability. Through the logic algorithm in the PLC program, the motor torque changes with the change of the radius of the roll paper. With the support of the tensioning mechanism 120, the constant tension of the roll paper is guaranteed during the entire conveying process. In order to ensure the flatness of the base paper before labeling and to inspect the quality of the label after being transferred to the base paper, a labeling platform 130 and a quality inspection platform 180 are designed. The upper surface of the platform is evenly distributed with air holes, and the cavity 132 structure is adopted inside. After being connected to the negative pressure air, the entire width of the roll base paper is adsorbed to ensure the flatness of the paper. The front and rear of the labeling platform 130 are designed with a correction function. The front-end correction ensures the transfer accuracy of the label. The label angle skew is controlled at ±0.3° and the distance from the edge of the base paper is ±0.5mm. The rear-end correction is mainly used in the winding mechanism 160 to ensure the winding effect of the roll base paper.

[0043] The winding and unwinding conveyor line 10 includes an unwinding mechanism 110 , a tensioning mechanism 120 , a driven roller 170 , a labeling platform 130 , a quality inspection platform 180 , a U-shaped ultrasonic sensor 140 , a front end deviation correction device 150 , and a winding mechanism 160 .

[0044] like Fig.16 and Fig.17 As shown, the unwinding mechanism 110 mainly realizes the unwinding function of the roll base paper, takes the servo motor as the power source, and the air shaft 114 expands the inner ring of the roll base paper. The air shaft 114 is mechanically connected to the servo motor, and the servo motor drives the air shaft 114 to rotate to achieve the unwinding function. The mechanism can realize intermittent or continuous unwinding. In order to ensure the constant tension of the roll base paper, the torque of the servo motor changes with the change of the roll paper diameter.

[0045] The tensioning mechanism 120 is mainly used to tension the bottom paper. Two metal driven wheels 124 are fixed in parallel on a bracket 126. One end of the bracket 126 is connected to a servo motor. The bottom paper passes through the middle of the two metal driven wheels 124. The rotation of the servo motor forms a torque on the bottom paper, thereby achieving the purpose of tightening the bottom paper.

[0046] The horizontal transmission distance of the roll base paper is 2.5m or longer. In order to ensure the long-distance transmission of the base paper and the effective transmission between various mechanisms, a driven roller 170 is installed on the transmission route of the base paper to play a role in local paper support and tensioning of the base paper.

[0047] like Figure 7 , Figure 8 , Fig. 9 As shown, the labeling platform 130 and the quality inspection platform 180 are the same in terms of processing materials and structural structures except for their differences in appearance size and function. The cavity 132 structure is used inside and is connected to the negative pressure air pipe. When labeling and quality inspection are performed, the reeling and unreeling servo motors stop rotating, and the PLC controls the reversing valve 210 to reverse. The labeling platform 130 and the quality inspection platform 180 are connected to the negative pressure, and an air cavity is formed inside. The bottom paper is adsorbed on the platform surface through the vent hole 134 on the upper surface to ensure the flatness of the bottom paper, so as to perform labeling operations and quality inspections. During the rest of the working time, the labeling platform 130 and the quality inspection platform 180 are not connected to the negative pressure through the control of the reversing valve 210.

[0048] In the front-end deflection correction device, the base paper passes through the middle of the U-shaped ultrasonic sensor 140. The U-shaped ultrasonic sensor 140 detects the edge position of the web by detecting the edge of the base paper, reads the deviation between the actual position and the set position, and converts the deviation into a voltage signal proportional to the deviation. The signal is then sent to the controller 190. The controller 190 amplifies and calibrates the signal and outputs it to the electric driver 152. The electric driver 152 drives the deflection correction guide mechanism 154 to perform a correction action according to the size of the input signal, and guides the web to a preset position.

[0049] like Fig.10 , Fig.11 , Fig.12 As shown, the winding mechanism 160 is similar to the unwinding mechanism 110 in structure and working principle. However, in addition to the functions of rotating winding and tightening the roll paper, the winding mechanism 160 also has a bottom paper belt deviation correction function. The servo motor is fixed on the L-shaped base 164. A guide slider 166 is installed at the lower end of the L-shaped base 164. The L-shaped base 164 is connected to the electric cylinder 168 through a connecting piece. The ultrasonic sensor detects the edge of the bottom paper to control the extension and retraction action of the electric cylinder 168, so as to realize the action of the L-shaped base 164, that is, the bottom paper belt deviation correction function is realized to ensure the neatness of the roll winding.

[0050] Beneficial effects of this embodiment: 1. The core power mechanism of the conveyor line adopts a servo motor, which has a faster response speed and higher control accuracy than traditional AC motors. Closed-loop servo control can achieve intermittent or continuous conveying, and the intermittent conveying distance is highly accurate and easy to adjust.

[0051] 2. The rewinding and unwinding mechanisms cooperate with the tensioning mechanism to ensure that the paper tension is constant during the entire conveying process.

[0052] 3. The structural design of the labeling and quality inspection platform uses the pneumatic control principle to ensure the flatness of the paper during labeling and quality inspection.

[0053] 4. The front and rear deviation-correcting mechanisms use sensors to detect the edge of the bottom paper, convert the detection signal into an electrical signal, and drive the deviation-correcting mechanism to perform corrective actions through program control, making slight adjustments to the bottom paper in the lateral direction to achieve the purpose of guiding.

[0054] In this application, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise expressly defined. Terms such as "installed", "connected", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0055] In the description of the present application, it should be understood that the terms "upper", "lower", "rear", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be understood as a limitation on the present application.

[0056] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0057] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A winding and unwinding conveyor line, characterized in that: include: The unwinding mechanism (110) comprises a first servo motor (112) and an inflatable shaft (114); the first servo motor (112) is connected to the inflatable shaft (114) and is used to drive the inflatable shaft (114) to rotate; the inflatable shaft (114) is used to sleeve the roll paper; A tensioning mechanism (120), used for tensioning the roll paper; A labeling platform (130), wherein a cavity (132) is provided in the labeling platform (130), the cavity (132) is used to be connected to a negative pressure, and an air vent (134) is provided on the upper surface of the labeling platform (130), the air vent (134) being in communication with the cavity (132); A U-shaped ultrasonic sensor (140) is used to detect the edge position of the roll paper and to detect the deviation between the edge position and a set position; A front-end deviation correction device (150) comprises an electric driver (152) and a deviation correction guide mechanism (154), wherein the electric driver (152) is used to drive the deviation correction guide mechanism (154) to correct the deviation of the roll paper according to the deviation amount; The rewinding mechanism (160) comprises a third servo motor (162), an L-shaped base (164), a guide rail slider (166) and an electric cylinder (168), wherein the third servo motor (162) is fixed to the L-shaped base (164), the guide rail slider (166) is slidably arranged, the lower end of the L-shaped base (164) is connected to the guide rail slider (166), and the electric cylinder (168) is connected to the L-shaped base (164) and is used to drive the L-shaped base (164) to slide according to the edge position of the roll paper detected by the U-shaped ultrasonic sensor (140); The unwinding mechanism (110), the tensioning mechanism (120), the front end deviation correcting device (150), the labeling platform (130), the U-shaped ultrasonic sensor (140), and the rewinding mechanism (160) are arranged in sequence in the conveying direction of the roll paper.

2. The winding and unwinding conveyor line according to claim 1, characterized in that: The tensioning mechanism (120) comprises two driven wheels (124) and a bracket (126); the two driven wheels (124) are fixed in parallel on the bracket (126); and the roll paper is wound between the two driven wheels (124).

3. The winding and unwinding conveyor line according to claim 2, characterized in that: The tensioning mechanism (120) further comprises a second servo motor (122), wherein the second servo motor (122) is connected to one end of the bracket (126).

4. The winding and unwinding conveyor line according to claim 1, characterized in that: Also includes: The controller (190) is connected to the U-shaped ultrasonic sensor (140) and the electric driver (152) respectively, and is used to receive a voltage signal of a deviation detected by the U-shaped ultrasonic sensor (140), amplify and calibrate the voltage signal, and then output it to the electric driver (152).

5. The winding and unwinding conveyor line according to claim 4, characterized in that: The controller (190) is also connected to the electric cylinder (168) and is used to control the extension and retraction of the electric cylinder (168) according to the edge position of the roll paper detected by the U-shaped ultrasonic sensor (140).

6. The winding and unwinding conveyor line according to claim 1, characterized in that: Also includes: The reversing valve (210) is used to switch the cavity (132) to be connected to or isolated from the negative pressure.

7. The winding and unwinding conveyor line according to claim 1, characterized in that: The number of the vent holes (134) is multiple, and the multiple vent holes (134) are evenly arranged on the upper surface of the labeling platform (130).

8. The winding and unwinding conveyor line according to claim 1, characterized in that: A negative pressure connector (136) is provided at the bottom of the labeling platform (130), and the negative pressure connector (136) is used to connect to a negative pressure.

9. The winding and unwinding conveyor line according to claim 1, characterized in that: Also includes: The driven roller (170) is arranged between the tensioning mechanism (120) and the labeling platform (130) and is used to tension and partially support the roll paper.

10. The winding and unwinding conveyor line according to any one of claims 1 to 9, characterized in that: Also includes: The quality detection platform (180) is arranged between the labeling platform (130) and the U-shaped ultrasonic sensor (140) and is used to detect the labeling quality.

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