Leather processing equipment and winding and unwinding method

Abstract

The invention discloses leather processing equipment and a winding and unwinding method. The leather processing equipment comprises a processing device, a first bracket, a driving roller, a driven roller, a driving motor, a controller and a tension mechanism. Wherein the driving roller is rotationally connected to the first support, the driven roller is used for conveying leather to the driving roller, the driving motor is arranged at one end of the driving roller, and the controller is connected with the driving motor and controls the driving motor to rotate at a theoretical rotating speed; the tension mechanism comprises a tension support, a floating roller and a floating roller position detection sensor, the floating roller is rotationally connected to the tension support and can move relative to the tension support in the height direction of the leather processing equipment, the floating roller position detection sensor is arranged on the tension support, and the floating roller position detection sensor is connected with the controller. The floating roller position detection sensor is used for detecting the real-time height of the floating roller. By means of the leather winding and unwinding device, the leather winding speed and the leather unwinding speed can be effectively adjusted and controlled.

Description

Technical Field

[0001] The present invention relates to the technical field of leather processing, and in particular to a leather processing device and a winding and unwinding method, which can be applied to the production of polyvinyl chloride artificial leather (also called PVC artificial leather), thermoplastic polyolefin artificial leather (also called TPO artificial leather), etc. Background Art

[0002] When processing leather, it is necessary to first unwind the leather (ie, provide the leather to the processing equipment) and then rewind the leather (ie, roll up the processed leather to form a leather roll).

[0003] However, currently the speed of leather winding and unwinding cannot be effectively regulated, which can easily lead to winding too fast or unwinding too slow, resulting in the leather roll being too tight after winding, or even causing the leather to be stretched during processing, thereby causing the leather to be scrapped; or it can easily lead to winding too slow or unwinding too fast, resulting in the leather roll being too loose after winding, which is not conducive to subsequent processing. Summary of the Invention

[0004] The present invention aims to solve the problem that current processing equipment cannot effectively control the speed of leather winding and unwinding. The present invention provides a leather processing equipment and a winding and unwinding method, which can effectively control the speed of leather winding and unwinding.

[0005] To solve the above technical problems, the embodiments of the present invention disclose a leather processing device, comprising:

[0006] Processing equipment for processing leather;

[0007] First bracket;

[0008] an active roller, rotatably connected to the first bracket, the active roller extending along the width direction of the leather processing equipment, and used to receive the leather and wind the leather into a leather roll, or transfer the leather to the processing device;

[0009] A driven roller extending along the width direction of the leather processing equipment, the driven roller being used to convey the leather to the driving roller;

[0010] A driving motor is provided at one end of the active roller, and the driving motor is capable of driving the active roller to rotate;

[0011] A controller connected to the drive motor, the controller controlling the drive motor to rotate at a theoretical speed;

[0012] A tension mechanism, comprising:

[0013] Tension bracket;

[0014] a floating roller, rotatably connected to the tension bracket, the floating roller being movable relative to the tension bracket along a height direction of the leather processing equipment, the leather being configured to pass through the floating roller from below the floating roller;

[0015] a floating roller position detection sensor, provided on the tension bracket, connected to the controller, and used to detect the real-time height of the floating roller;

[0016] When the floating roller position detection sensor detects that the real-time height is greater than the set height, the controller controls the theoretical speed of the drive motor to decrease; when the real-time height is less than the set height, the controller controls the theoretical speed of the drive motor to increase.

[0017] Using this technical solution, the drive motor is controlled to rotate at a theoretical speed. The drive motor's speed is dynamically adjusted based on the real-time height measured by the floating roller position detection sensor to prevent the drive motor from rotating too fast or too slow. Specifically, a controller compares the real-time height measured by the floating roller position detection sensor with a set height. If the real-time height is greater than the set height, the current drive motor speed is too fast. The controller controls the drive motor speed to reduce it, preventing the leather from being too tight after winding. This also prevents the active or driven rollers from winding the leather too quickly, causing it to stretch during processing and thus causing product scrapping, or from unwinding it too quickly, which could affect the leather's processing quality. If the real-time height is lower than the set height, the current drive motor speed is too slow. The controller controls the drive motor speed to increase it to avoid affecting production efficiency. This allows for dynamic adjustment of the leather winding or unwinding speed.

[0018] According to a specific embodiment of the present invention, the active roller is used to roll the leather into a leather roll;

[0019] The leather processing equipment also includes:

[0020] A roll diameter sensor is provided on the first bracket, and the roll diameter sensor is used to detect the real-time roll diameter of the leather roll on the active roller. The controller is connected to the roll diameter sensor, and the controller is used to calculate the theoretical rotation speed of the drive motor based on the real-time roll diameter and the average linear speed of the driven roller.

[0021] By adopting the above technical solution, the real-time roll diameter of the leather roll on the active roller is detected by the roll diameter sensor, and the drive motor is controlled to rotate at the theoretical speed based on the real-time roll diameter and the average linear velocity of the driven roller. The speed of the drive motor can be regulated in real time to avoid the drive motor speed being too fast or too slow. In the embodiment of the present application, the speed of the drive motor is dynamically adjusted based on the real-time roll diameter measured by the roll diameter sensor to avoid the drive motor speed being too fast or too slow. At the same time, the speed of the drive motor is adjusted based on the real-time height of the floating roller measured by the floating roller position detection sensor to further improve the adjustment accuracy of the drive motor speed and avoid errors caused by a single adjustment method.

[0022] According to a specific embodiment of the present invention, the active roller is used to transfer the leather to the processing device;

[0023] The controller is used to calculate the theoretical rotation speed of the driving motor according to the diameter of the active roller and the average linear speed of the processing device.

[0024] Using the above technical solution, the drive motor is controlled to rotate at a theoretical speed based on the diameter of the active roller and the average linear velocity of the processing device. This allows for real-time regulation of the drive motor's speed to prevent the motor from rotating too fast or too slowly. In this embodiment of the present application, the drive motor's speed is dynamically adjusted based on the average linear velocity of the processing device to prevent the motor from rotating too fast or too slowly. Simultaneously, the drive motor's speed is adjusted based on the real-time height of the floating roller as measured by the floating roller position detection sensor, further improving the accuracy of the drive motor's speed regulation and avoiding errors caused by a single adjustment method.

[0025] According to a specific embodiment of the present invention, two slide rails are provided at both ends of the tension bracket along the width direction, and each of the slide rails extends along the height direction;

[0026] Along the width direction, one end of the floating roller is connected to one of the two slide rails in a manner that is slidable along the height direction, and the other end of the floating roller is connected to the other of the two slide rails in a manner that is slidable along the height direction.

[0027] According to a specific embodiment of the present invention, each of the two slide rails includes:

[0028] an upper limit portion, provided at the upper end of the slide rail along the height direction, the upper limit portion being capable of preventing the floating roller from upwardly separating from the slide rail along the height direction;

[0029] A lower limit portion is provided at the lower end of the slide rail along the height direction, and the lower limit portion can prevent the floating roller from falling off the slide rail downward along the height direction.

[0030] According to a specific embodiment of the present invention, a limit detection sensor is provided on the tension bracket, the limit detection sensor is capable of detecting the position of the floating roller, and the limit detection sensor is connected to the controller;

[0031] When the limit detection sensor detects that the floating roller is in contact with the upper limit portion, the controller controls the theoretical rotation speed of the driving motor to decrease;

[0032] When the limit detection sensor detects that the floating roller is in contact with the lower limit portion, the controller controls the theoretical rotation speed of the driving motor to increase.

[0033] The above technical solution effectively prevents the floating roller from dislodging from the rail in the height direction by providing an upper limit at the upper end of the slide rail and a lower limit at the lower end of the slide rail. Furthermore, a limit detection sensor detects the position of the floating roller relative to the upper and lower limit portions. This allows the controller to adjust the theoretical speed of the drive motor based on the limit detection sensors if the floating roller position detection sensor fails. For example, if the floating roller position detection sensor fails and the floating roller contacts the upper limit portion, the controller controls the theoretical speed of the drive motor to decrease. Alternatively, if the floating roller position detection sensor fails and the floating roller contacts the lower limit portion, the controller controls the theoretical speed of the drive motor to increase.

[0034] According to a specific embodiment of the present invention, the limit detection sensor includes:

[0035] an upper limit detection sensor, provided at the upper limit portion, for detecting the position of the floating roller relative to the upper limit portion;

[0036] The lower limit detection sensor is provided at the lower limit portion and is used for detecting the position of the floating roller relative to the lower limit portion.

[0037] According to a specific embodiment of the present invention, the floating roller position detection sensor is disposed below the floating roller along the height direction, and the floating roller position detection sensor is spaced apart from the floating roller along the height direction.

[0038] According to a specific embodiment of the present invention, the first bracket includes:

[0039] an upper bracket, the active roller being rotatably connected to the upper bracket;

[0040] a lower bracket, located below the upper bracket along the height direction, and the upper bracket is movable relative to the lower bracket along the width direction;

[0041] a deviation-correcting roller, rotatably connected to the upper bracket, the deviation-correcting roller being used to receive the leather passing through the tension mechanism;

[0042] a correction sensor, provided at one end of the upper bracket, the correction sensor being used to detect the position of the leather along the width direction, the correction sensor being connected to the controller;

[0043] The controller is capable of controlling the upper bracket and the correcting roller to move relative to the lower bracket along the width direction.

[0044] By adopting the above technical solution, the first bracket is arranged to include two parts, an upper bracket and a lower bracket, and the upper bracket can move relative to the lower bracket in the width direction. At the same time, the active roller and the correcting roller are arranged on the upper bracket so that the active roller and the correcting roller can move synchronously with the upper bracket, and a correcting sensor is arranged on the correcting roller to detect the position of the leather along the width direction, and the controller controls the movement of the upper bracket and the correcting roller relative to the lower bracket according to the detection result of the correcting sensor, thereby adjusting the position of the leather along the width direction, which can effectively prevent the leather roll from presenting a non-cylindrical state after the leather is rolled up.

[0045] An embodiment of the present invention further discloses a winding and unwinding method, which is applied to leather processing equipment. The leather processing equipment includes a driving roller, a drive motor, a driven roller, and a floating roller. The drive motor is used to drive the driving roller to rotate. The driving roller is used to receive leather and wind the leather into a leather roll, or to transfer the leather to a processing device. The driven roller is used to provide the leather to the driving roller. The winding and unwinding method includes:

[0046] Controlling the drive motor to rotate at a theoretical speed, wherein the theoretical speed is calculated based on the real-time roll diameter of the leather roll and the average linear speed of the driven roller; or, the theoretical speed is calculated based on the diameter of the active roller and the average linear speed of the processing device;

[0047] Obtaining the real-time height of the floating roller;

[0048] If the real-time height of the floating roller is higher than the set height, the theoretical speed of the drive motor is controlled to decrease; or if the real-time height of the floating roller is higher than the set height, the theoretical speed of the drive motor is controlled to increase. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 A side view of a leather processing apparatus according to an embodiment of the present invention is shown.

[0050] Figure 2A A three-dimensional view of a winding device of a leather processing equipment according to an embodiment of the present invention is shown.

[0051] Figure 2B A three-dimensional view of a winding device of a leather processing equipment according to an embodiment of the present invention is shown.

[0052] Figure 2C Schematic diagram showing the positional relationship between the correction sensor of the winding device of the leather processing equipment according to the embodiment of the present invention and the leather Figure 1 .

[0053] Figure 2D Schematic diagram 2 showing the positional relationship between the deviation correction sensor of the winding device of the leather processing equipment according to an embodiment of the present invention and the leather.

[0054] Figure 2E Schematic diagram showing the positional relationship between the correction sensor of the winding device of the leather processing equipment according to the embodiment of the present invention and the leather Figure 3 .

[0055] Figure 3 A perspective view showing a tension mechanism according to an embodiment of the present invention.

[0056] Figure 4 A block diagram showing a leather processing device according to an embodiment of the present invention.

[0057] Figure 5 A side view showing a tension mechanism according to an embodiment of the present invention.

[0058] Figure 6 A logical schematic diagram of a winding and unwinding method according to an embodiment of the present invention is shown.

[0059] Figure 7 A schematic diagram showing the positional relationship between the roll diameter sensor, the leather roll, and the active roller according to an embodiment of the present invention is shown.

[0060] Figure 8 A block diagram of an electronic device provided by an embodiment of the present invention is shown.

[0061] Figure 9 A block diagram of a system on chip (SoC) provided by an embodiment of the present invention is shown.

[0062] Description of Figure Numbers:

[0063] 10. Leather processing equipment;

[0064] 100. Paper delivery device, 101. Driven roller, 1011. Second motor, 102. Paper, 103. Paper roll, 104. Leather, 1041. Leather end, 105. Leather roll;

[0065] 200. Leather winding device;

[0066] 210. Winding mechanism, 211. First bracket, 2111. Upper bracket, 2112. Lower bracket, 2113. Correction slider, 212. Active roller, 213. Drive motor, 214. Roll diameter sensor, 215. Speed ​​reducer, 216. Correction roller, 217. Correction sensor, 2171. Detection groove, 218. Correction motor, 219. Correction screw;

[0067] 220. Tension mechanism, 221. Tension bracket, 222. Floating roller, 223. Slide rail, 2231. Upper limit portion, 2232. Lower limit portion, 224. Floating roller position detection sensor, 225. Limit detection sensor, 226. Fixed rod, 227. Bottom of the tension bracket;

[0068] 230. Controller;

[0069] 300. Punching device;

[0070] 400. Leather unloading device;

[0071] 500. Paper feeding device. DETAILED DESCRIPTION

[0072] The following is an explanation of the embodiments of the present invention by specific specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this invention are limited to this embodiment. On the contrary, the purpose of introducing the invention in conjunction with the embodiment is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will contain many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0073] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0074] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0075] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0076] In the description of this embodiment, it should be noted that, unless otherwise specified or limited, the terms "disposed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this embodiment based on specific circumstances.

[0077] To make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0078] refer to Figure 1 An embodiment of the present application provides a leather processing device 10. For example, the leather processing device 10 can perform various types of processing on leather 104, such as punching, flattening, embossing, etc.

[0079] To facilitate the description of the leather processing device 10, the leather processing device 10 of the embodiment of the present application is used as an example to illustrate that it can punch holes in leather 104. The leather processing device 10 punches holes in the leather 104, thereby forming multiple small holes in the leather 104 to improve the air permeability, heat dissipation, and anti-slip properties of the leather 104, effectively improving the texture of the leather. The punched leather 104 can be used to make car seats, thereby enabling the car seats to have functions such as seat heating, seat cooling, and seat ventilation, effectively improving the comfort of the car seats. In addition, the punched leather 104 can also be used to make steering wheels, thereby enabling the steering wheels to have a heating function, providing users with a better driving experience in winter or summer.

[0080] To facilitate description of the structure of the leather processing equipment 10, the length direction X, width direction Y, and height direction Z of the leather processing equipment 10 are first defined herein. The length direction X, width direction Y, and height direction Z are mutually perpendicular, i.e., the angles between the length direction X and width direction Y, the angles between the width direction Y and height direction Z, and the angles between the length direction X and height direction Z are all 90°. However, this is not limiting. In other possible embodiments, the angles between the length direction X and width direction Y, the angles between the width direction Y and height direction Z, and the angles between the length direction X and height direction Z may also be 89°, 91°, 92°, or the like.

[0081] Continue to refer Figure 1The leather processing equipment 10 includes a paper receiving device 100, a leather winding device 200, a punching device (also called a processing device) 300, a leather unloading device 400, and a paper unloading device 500. The leather unloading device 400 is used to provide unpunched leather 104 to the punching device 300, and the paper unloading device 500 is used to provide paper 102 to the punching device 300. When the punching device 300 punches holes in the leather 104, the paper 102 is placed under the leather 104, thereby protecting the punching tool (not shown) of the punching device 300 and the leather 104 from damage. After the leather 104 is punched, the leather winding device 200 winds up the punched leather 104 to form a leather roll 105, and the paper receiving device 100 winds up the paper 102 to form a paper roll 103.

[0082] In the embodiment of the present application, the paper 102 is specifically corrugated paper, but is not limited thereto. In other possible embodiments, the paper 102 may also be other materials having a certain degree of hardness and capable of being rolled up to form the leather roll 105. The embodiment of the present application does not impose any particular limitation on the thickness of the paper 102. For example, in some possible embodiments, the thickness of the paper 102 is 0.9 mm. In other possible embodiments, the thickness of the paper 102 may be 1.0 mm, 1.1 mm, or 1.2 mm.

[0083] The leather rolling device 200 will be described in detail below with reference to the accompanying drawings.

[0084] refer to Figures 2A to 5 Combined with Figure 1 , an embodiment of the present application provides a leather rolling device 200 , which is used to roll up the punched leather 104 and form a leather roll 105 .

[0085] It should be noted that, in the embodiment of the present application, the length direction of the leather rolling device 200 is the same as the length direction of the leather processing equipment 10, both are the length direction X, the width direction of the leather rolling device 200 is the same as the width direction of the leather processing equipment 10, both are the width direction Y, and the height direction of the leather rolling device 200 is the same as the height direction of the leather processing equipment 10, both are the height direction Z.

[0086] Illustratively, the leather rolling device 200 includes: a driven roller 101, a rolling mechanism 210, a tension mechanism 220, and a controller 230. Along the length direction X, the driven roller 101, the tension mechanism 220, and the rolling mechanism 210 are sequentially arranged.

[0087] In one possible embodiment, the driven roller 101 is provided at the punching device 300 to transfer the punched leather 104 to the tension mechanism 220. Along the width direction Y, a second motor 1011 is provided at the end of the driven roller 101. The second motor 1011 is connected to the driven roller 101. The second motor 1011 can drive the driven roller 101 to rotate so that the driven roller 101 provides the leather 104 to the tension mechanism 220. The controller 230 is connected to the second motor 1011 (for example, by wired or wireless communication). The average linear velocity of the driven roller 101 is stored in the controller 230, so that the controller 230 can directly read the average linear velocity of the driven roller 101. It should be noted that the embodiment of the present application does not impose any special restrictions on the average linear velocity of the driven roller 101, and it can be set by the staff according to actual needs. For example, the average linear velocity of the driven roller in the embodiment of the present application is 2200 mm / min.

[0088] It should be noted that, in some possible embodiments, the driven roller 101 may not be provided with the second motor 1011, that is, the driven roller 101 itself does not rotate, but the transmission mechanism in the punching device 300 drives the punched leather 104 to move to the tension mechanism 220 at the above-mentioned average linear speed (2200 mm / min).

[0089] Illustratively, the driven roller 101 extends in the width direction Y. The driven roller 101 conveys the punched leather 104 to the tension mechanism 220 (i.e., the driven roller 101 provides the leather 104 to the tension mechanism 220). The tension mechanism 220 conveys the leather 104 to the winding mechanism 210 for winding. The controller 230 can adjust the winding speed of the leather 104 by the winding mechanism 210 to prevent the winding mechanism 210 from winding the leather 104 too quickly, thereby preventing the leather roll 105 from being too tight. Furthermore, the controller 230 can prevent the leather 104 from being pulled during the punching process, thereby preventing the leather 104 from being broken, damaged, and thus scrapped. Alternatively, the controller 230 can prevent the winding mechanism 210 from winding the leather 104 too slowly, thereby reducing production efficiency.

[0090] The embodiment of the present application does not impose any special restrictions on the specific type of the controller 230. For example, the controller 230 may be a PLC (Programmable Logic Controller).

[0091] For example, continue to refer to Figures 2A to 4 In the embodiment of the present application, the winding mechanism 210 includes: a first bracket 211, an active roller 212, a driving motor 213 and a winding diameter sensor 214.

[0092] The driving roller 212 is rotatably connected to the first bracket 211. The driving roller 212 receives the leather 104 delivered from the driven roller 101 and winds the leather 104 into a leather roll 105. The driving roller 212 extends along the width direction Y of the leather winding device 200. A drive motor 213 is mounted on the first bracket 211 and at one end of the driving roller 212. The drive motor 213 is connected to the driving roller 212 via a speed reducer 215. The drive motor 213 drives the driving roller 212 to rotate via the speed reducer 215, thereby allowing the driving roller 212 to wind the leather 104 into the leather roll 105. The drive motor 213 is also connected to a controller 230.

[0093] It should be noted that in the embodiment of the present application, the reduction ratio i of the reducer 215 is 100:1, but is not limited to this. For example, in other possible implementations, the reduction ratio i of the reducer 215 can also be 90:1, 80:1 or 110:1, etc., and can be adaptively adjusted according to actual needs.

[0094] For example, in some possible implementations, the driving motor 213 may not be connected to the active roller 212 via the speed reducer 215 , but the output end of the driving motor 213 may be directly connected to the active roller 212 .

[0095] Exemplarily, the roll diameter sensor 214 is disposed on the first bracket 211 and is located below the active roller 212 along the height direction Z. The roll diameter sensor 214 is spaced apart from the active roller 212 and is capable of detecting the real-time roll diameter D of the leather roll 105 on the active roller 212. The roll diameter sensor 214 is connected to the controller 230 (e.g., via a wired or wireless communication connection). The controller 230 calculates the theoretical rotational speed N of the drive motor 101 based on the real-time roll diameter D, the average linear velocity V of the driven roller 101, and the reduction ratio i of the reducer 215. The controller 230 then controls the drive motor 213 to rotate at the theoretical rotational speed N.

[0096] In the embodiment of the present application, the roll diameter sensor 214 is an ultrasonic ranging sensor. The embodiment of the present application does not impose any special restrictions on the specifications of the roll diameter sensor 214, and can be adaptively adjusted according to actual needs. For example, the measurement range of the roll diameter sensor 214 in the embodiment of the present application is 100 mm to 1 m, and the corresponding digital value (when the controller 230 is a PLC, the value displayed by the PLC) ranges from 0 to 27648. For example, when the measured value is 100 mm, the corresponding digital value is 0, and when the measured value is 1 m, the corresponding digital value is 27648. For example, the current signal collected by the roll diameter sensor 214 in the embodiment of the present application is 4 to 20 mA.

[0097] The embodiment of the present application does not impose any special restrictions on the specific type of the roll diameter sensor 214, as long as it can effectively detect the real-time roll diameter of the leather roll 105 on the active roller 212. For example, in some possible implementations, the roll diameter sensor 214 can be a laser sensor, infrared sensor, or other type of sensor.

[0098] It should be noted that in some possible implementations, for example, the output end of the drive motor 213 is directly connected to the active roller 212, and the controller 230 can calculate the theoretical speed N of the drive motor 101 based on the real-time winding diameter D and the average linear speed V of the driven roller 101, and then the controller 230 controls the drive motor 213 to rotate at the theoretical speed N.

[0099] It should be noted that the embodiment of the present application does not impose any special restrictions on the specific position of the roll diameter sensor 214, as long as the roll diameter sensor 214 can effectively detect the real-time roll diameter D of the leather roll 105 on the active roller 212.

[0100] Continue to refer Figures 2A to 4 and combined Figure 1 The tension mechanism 220 is provided between the winding mechanism 210 and the driven roller 101 . The tension mechanism 220 includes a tension bracket 221 , a floating roller 222 , two slide rails 223 and a floating roller position detection sensor 224 .

[0101] The floating roller 222 is rotatably connected to the tension bracket 221 , and the floating roller 222 can move relative to the tension bracket 221 along the height direction Z. The leather 104 passes through the floating roller 222 from below.

[0102] In the embodiment of the present application, the floating roller 222 will generate a downward force along the height direction Z on the leather 104 passing through the floating roller 222 due to its own gravity, thereby increasing the tension of the leather 104. As a result, the tension of the leather 104 passing through the floating roller 222 is increased, which can make the leather roll 105 formed by the active roller 212 rolling up the leather 104 tight and neat, avoiding the leather roll 105 from being too loose, which is not conducive to subsequent processing or utilization.

[0103] For example, in the embodiment of the present application, the weight of the floating roller 222 is 10 kg, but is not limited thereto. In other possible implementations, the weight of the floating roller 222 can also be 9 kg, 11 kg or 12 kg, etc., and can be adaptively adjusted according to actual needs.

[0104] Exemplarily, the floating roller position detection sensor 224 is provided on the tension bracket 221, the floating roller position detection sensor 224 is located below the floating roller 222 in the height direction, and the floating roller position detection sensor 224 is connected to the controller 230 (for example, in a wired or wireless communication connection), the floating roller position detection sensor 224 is used to detect the real-time height H1 of the floating roller 222, and perform PID adjustment on the theoretical speed N of the drive motor 213 according to the real-time height H1.

[0105] Specifically, the tension bracket 221 is provided with a fixing rod 226 . The fixing rod 226 extends in the width direction Y, and both ends of the fixing rod 226 are respectively fixed to the tension bracket 221 . The dancing roller position detection sensor 224 is provided on the fixing rod 226 .

[0106] In the embodiment of the present application, the real-time height H1 refers to the height of the floating roller 222 from the floating roller position detection sensor 224 along the height direction Z. The set height H2 refers to the height of the floating roller 222 from the floating roller position detection sensor 224 along the height direction Z. It should be noted that the specific value of the set height H2 is not particularly limited in the embodiment of the present application. For example, in some possible implementations, the set height H2 is 60 cm, 70 cm, or 80 cm. This value can be adjusted based on actual needs.

[0107] It should be noted that, in some other possible embodiments, the real-time height H1 refers to the height between the floating roller 222 and the bottom 227 of the tension bracket 221, and accordingly, the set height H2 refers to the height between the floating roller 222 and the bottom 227 of the tension bracket 221. In other possible embodiments, the real-time height H1 may also refer to the height between the floating roller 222 and the ground, and accordingly, the set height H2 refers to the height between the floating roller 222 and the ground.

[0108] For example, when the floating roller position detection sensor 224 detects that the real-time height H1 of the floating roller 222 is higher than the set height H2, the current active roller 212 is winding the leather 104 too fast, and the controller 230 controls the theoretical rotation speed N of the drive motor 213 to decrease, thereby preventing the active roller 212 from winding the leather 104 too fast, which would cause the leather roll 105 to be too tight. This also prevents the leather 104 being pulled during perforation, which could cause the leather 104 to break, be damaged, and thus be scrapped. When the floating roller position detection sensor 224 detects that the real-time height H1 of the floating roller 222 is lower than the set height H2, the current active roller 212 is winding the leather 104 too slowly, and the controller 230 controls the theoretical rotation speed N of the drive motor 213 to increase, thereby preventing the winding mechanism 210 from winding the leather 104 too slowly, which would cause a decrease in production efficiency.

[0109] It should be noted that the embodiment of the present application does not impose any special restrictions on the specific position of the floating roller position detection sensor 224 , as long as the floating roller position detection sensor 224 can effectively detect the distance between the floating roller 222 and the detection sensor 224 .

[0110] In the embodiment of the present application, the floating roller position detection sensor 224 is specifically a photoelectric sensor. However, the embodiment of the present application does not impose any special restrictions on the specific type of the floating roller position detection sensor 224. For example, in other possible implementations, the floating roller position detection sensor 224 can also be an infrared sensor, a laser sensor, etc., which can effectively detect the real-time height of the floating roller 222 relative to the tension bracket 221 along the height direction Z.

[0111] Continue to refer Figure 2A 、 Figure 3 and Figure 5 Combined with Figure 4 For example, along the width direction Y, a slide rail 223 is provided at each end of the tension bracket 221. Each slide rail 223 extends along the height direction Z (it should be noted that in some possible embodiments, the slide rails 223 may be arranged at an angle relative to the height direction Z). One end of the floating roller 222 is slidably connected to one of the two slide rails 223 along the height direction Z, and the other end of the floating roller 222 is also slidably connected to the other of the two slide rails 223 along the height direction Z. The floating roller 222 can move up and down relative to the slide rails 223 along the height direction Z, thereby enabling the floating roller 222 to move relative to the tension bracket 221 along the height direction Z.

[0112] Illustratively, each of the two slide rails 223 includes an upper stop portion 2231 and a lower stop portion 2232. Specifically, along the height direction Z, the upper stop portion 2231 is located at the upper end of the slide rail 223, and the lower stop portion 2232 is located at the lower end of the slide rail 223. The upper stop portion 2231 prevents the floating roller 222 from disengaging from the slide rail 223 upward along the height direction Z. The lower stop portion 2232 prevents the floating roller 222 from disengaging from the slide rail 223 downward along the height direction Z.

[0113] Furthermore, the tension mechanism 220 in the embodiment of the present application also includes a limit detection sensor 225. The limit detection sensor 225 is disposed on the tension bracket 221 and is connected to the controller 230 (e.g., via a wired or wireless communication connection). The limit detection sensor 225 is capable of detecting the position of the floating roller 222 relative to the upper limit portion 2231 and the lower limit portion 2232. It should be noted that the limit detection sensor 225 is used to detect whether the floating roller 222 is at its limit.

[0114] For example, when the limit detection sensor 225 detects that the floating roller 222 is in contact with the upper limit portion 2231, the floating roller 222 has reached the upper limit of the slide rail 223, and the controller 230 needs to control the theoretical rotation speed N of the drive motor 213 to decrease so that the floating roller 222 returns to the set height H2 along the height direction Z. When the limit detection sensor 225 detects that the floating roller 222 is in contact with the lower limit portion 2232, the floating roller 222 has reached the lower limit of the slide rail 223, and the controller 230 needs to control the theoretical rotation speed N of the drive motor 213 to increase so that the floating roller 222 returns to the set height H2 along the height direction Z.

[0115] In the embodiment of the present application, the limit detection sensor 225 is specifically a photoelectric sensor. However, the embodiment of the present application does not impose any special restrictions on the specific type of the limit detection sensor 225. For example, in other possible implementations, the limit detection sensor 225 can also be an infrared sensor, a laser sensor, or the like that can effectively detect the real-time height of the floating roller 222 along the height direction Z.

[0116] It should be noted that, in the embodiment of the present application, the limit detection sensor 225 serves as a safety measure for the leather winding device 200. That is, when the leather winding device 200 is in normal working condition, the limit detection sensor 225 is in a stopped state. When the floating roller position detection sensor 224 fails, the limit detection sensor 225 starts to work, thereby replacing the floating roller position detection sensor 224 to detect the real-time height H1 of the floating roller 222.

[0117] It should be noted that, in some possible embodiments, the limit detection sensor 225 includes: an upper limit detection sensor (not shown) and a lower limit detection sensor (not shown), wherein the upper limit detection sensor is provided at the upper limit portion 2231 and is used to detect the position of the floating roller 222 relative to the upper limit portion 2231. The lower limit detection sensor is provided at the lower limit portion 2232 and is used to detect the position of the floating roller 222 relative to the lower limit portion 2232.

[0118] That is, the embodiment of the present application provides two limit detection sensors to respectively detect the position of the floating roller 222 relative to the upper limit portion 2231 and the position of the floating roller 222 relative to the lower limit portion 2232, thereby improving detection accuracy.

[0119] refer to Figure 2B In the embodiment of the present application, the first bracket 211 includes an upper bracket 2111 and a lower bracket 2112. The lower bracket 2112 is located below the upper bracket 2111 along the height direction Z. Moreover, the upper bracket 2111 is connected to the lower bracket 2112 in a manner that it can move along the width direction Y.

[0120] For example, continue to refer to Figure 2B A correction screw 219 is provided at the top of the lower bracket 2112. A correction motor 218 is provided at one end of the correction screw 219 along the width direction Y. The correction motor 218 is connected to the controller 230 (e.g., via a wired or wireless communication connection). A correction slider 2113 is provided at the bottom of the upper bracket 2111. The correction slider 2113 is connected to the correction screw 219 so as to be movable along the width direction Y. The correction motor 218 can drive the correction screw 219 to rotate, thereby enabling the correction slider 2113 to drive the upper bracket 2111 to move along the width direction Y relative to the lower bracket 2112.

[0121] The active roller 212 is rotatably connected to the upper bracket 2111 .

[0122] The winding mechanism 210 in the embodiment of the present application further includes a correction roller 216, which is used to receive the leather 104 that has passed through the tension mechanism 220. The correction roller 216 extends along the width direction Y and is rotatably connected to the upper bracket 2111 of the first bracket 211. The correction roller 216 is capable of moving synchronously with the upper bracket 2111 relative to the lower bracket 2112 along the width direction Y. Along the width direction Y, a correction sensor 217 is provided at one end of the correction roller 216. The correction sensor 217 is connected to the controller 230 (e.g., in a wired or wireless communication manner). The correction sensor 217 is capable of detecting the position of the leather 104 along the width direction Y. For example, when the correction sensor 217 detects that the leather 104 is offset along the width direction Y, the controller 230 controls the correction motor 218 to drive the correction screw 219 to rotate, thereby driving the upper bracket 2111 and the correction roller 216 to move along the width direction Y, thereby adjusting the position of the leather 104 relative to the active roller 212 along the width direction Y to avoid the leather roll 105 from presenting a non-cylindrical state after the leather 104 is rolled up.

[0123] Specifically, refer to Figure 2C Combined with Figure 2B The deviation correction sensor 217 has a detection groove 2171, and the end 1041 of the leather 104 is located in the detection groove 2171, so as to detect the position of the leather 104 relative to the deviation correction roller 216 along the width direction. For example, the middle position of the detection groove 2171 (such as Figure 2C The position indicated by the dotted line a) is used as a detection reference. When the end 1041 of the leather 104 is located at the position of the dotted line a, it means that the position of the leather 104 along the width direction Y is normal.

[0124] refer to Figure 2D Combined with Figure 2B For example, when the deviation correction sensor 217 detects that the end portion 1041 of the leather 104 is located on the right side of the middle position along the width direction Y (ie Figure 2D The correcting motor 218 drives the correcting screw 219 to rotate, thereby driving the upper bracket 2111, the correcting roller 216 and the correcting sensor 217 to move rightward along the width direction Y, so that the end 1041 of the leather 104 is located at the position of the dotted line a.

[0125] refer to Figure 2E Combined with Figure 2B For another example, when the deviation correction sensor 217 detects that the end portion 1041 of the leather 104 is located on the left side of the middle position along the width direction Y (ie Figure 2D The deviation correction motor 218 drives the deviation correction screw 219 to rotate, thereby driving the upper bracket 2111, the deviation correction roller 216 and the deviation correction sensor 217 to move toward the left along the width direction Y, so that the end 1041 of the leather 104 is located at the position of the dotted line a.

[0126] It should be noted that the embodiment of the present application does not impose any special restrictions on the specific type of the correction sensor 217. For example, the correction sensor 217 can be a photoelectric sensor, an infrared sensor, or other types of sensors.

[0127] An embodiment of the present application further provides a winding and unwinding method, which includes a winding method and an unwinding method, wherein the winding method is applied to the above-mentioned leather winding device 200.

[0128] Specifically, refer to Figure 6 and Figure 7 Combined with Figures 2A to 5 The winding method includes the following steps:

[0129] S100: Obtaining the real-time roll diameter of the leather roll.

[0130] Here, the controller 230 of the embodiment of the present application is connected to the roll diameter sensor 214 (for example, in a wired or wireless communication manner), so that the controller 230 can obtain the real-time roll diameter D of the leather roll 105 on the active roller 212.

[0131] Specifically, the roll diameter sensor 214 detects the distance L1 between the lower end of the leather roll 105 and the roll diameter sensor 214, and transmits the distance L1 to the controller 230. The controller 230 stores the distance L2 between the center of the active roller 212 and the roll diameter sensor 214. The controller 230 subtracts the distance L1 from the distance L2 to obtain the radius of the leather roll 105. The real-time roll diameter D of the leather roll 105 can be calculated by multiplying the radius of the leather roll 105 by two.

[0132] That is, the distance L1 between the lower end of the leather roll 105 and the roll diameter sensor 214 is detected by the roll diameter sensor 214, and then the controller 230 calculates the real-time roll diameter D according to the formula (1): D=2×(L2-L1).

[0133] For example, in one possible embodiment, the distance L2 between the center of the active roller 212 and the roll diameter sensor 214 is 950 mm, and the distance L1 between the lower end of the leather roll 105 and the roll diameter sensor 214 measured by the roll diameter sensor 214 is 150 mm. The controller 230 then calculates the real-time roll diameter of the leather roll 105 according to formula (1) as D = 2 × (950 - 150) = 1600 mm. The process then proceeds to step S200, described below.

[0134] S200 : Acquire the average linear velocity of the driven roller 101 .

[0135] Here, the controller 230 may directly read the average linear velocity V of the driven roller 101 , for example, the average linear velocity V of the driven roller 101 is 2200 mm / min, and then proceed to step S300 to be described later.

[0136] S300: Calculating the theoretical rotation speed of the driving motor according to the real-time winding diameter and the average linear speed.

[0137] Specifically, the controller 230 calculates the real-time circumference C of the leather roll 105 based on the real-time roll diameter D of the leather roll 105 and the formula (2): C = πD. The controller 230 then calculates the theoretical speed of the drive motor 213 based on the formula (3): N = iV / C. Here, i is the reduction ratio of the reducer 215. In the embodiment of the present application, the reduction ratio i = 100:1.

[0138] For example, by substituting the real-time roll diameter D = 1600 mm obtained in step S100 into formula (2), the real-time circumference C = π × 1600 = 5026.6 mm of the leather roll 105 can be calculated. Next, by substituting the circumference C = 5026.6 mm and the average linear velocity V = 2200 mm / min obtained in step S200 into formula (3), the theoretical rotational speed N1 of the drive motor 213 can be calculated as N1 = 2200 / 5026.6 × 100 = 43 r / min.

[0139] It should be noted that in some possible embodiments, the drive motor 213 is not connected to the active roller 212 through the reducer 215, but the output end of the drive motor 213 is directly connected to the active roller 212. Therefore, when calculating the theoretical speed N1 according to formula (3), it is not necessary to multiply the reduction ratio of the reducer 215. That is, by substituting the circumference C = 5026.6 mm and the average linear velocity V = 2200 mm / min obtained in step S200 into the above formula (3), the theoretical speed N1 of the drive motor 213 can be calculated as N1 = 2200 / 5026.6 = 0.43 r / min.

[0140] After the theoretical rotation speed N1 of the drive motor 213 is calculated, the process proceeds to step S400 described below.

[0141] S400: Control the driving motor to rotate at a theoretical speed.

[0142] Here, the controller 230 controls the driving motor 213 to rotate at the theoretical rotation speed N1 = 43 r / min obtained in step S300 , and then proceeds to step S500 to be described later.

[0143] S500: Acquire the real-time height of the floating roller.

[0144] Here, the controller 230 of the present embodiment is connected to the dancer roller position detection sensor 224 (e.g., via a wired or wireless communication connection) to enable the controller 230 to obtain the real-time height H1 of the dancer roller. Furthermore, the controller 230 can store and update the real-time height H1 obtained by the dancer roller position detection sensor 224. The process then proceeds to step S601, described below.

[0145] S601: Determine whether the real-time height of the floating roller is higher than the set height.

[0146] The controller 230 pre-stores the set height H2 of the dancer roller. The controller 230 compares the real-time height H1 obtained in step S500 with the set height H2, and proceeds to steps S601 and S602 described below according to the determination results.

[0147] For example, the height H2 is set to 50% of the length of the slide rail 223 along the height direction Z (ie, the middle position of the slide rail 223 ).

[0148] For example, if the floating roller position detection sensor 224 detects that the real-time height H1 of the floating roller 222 is 60 cm, while the height H3 of the lower limit portion 2232 of the slide rail 223 from the floating roller position detection sensor 224 is 40 cm, and the height H4 of the upper limit portion 2231 of the slide rail 223 from the floating roller position detection sensor 224 is 84 cm, the controller 230 calculates the position percentage of the floating roller 222 on the slide rail 223 as (60-40) / (84-40)×100%=45% according to the formula (4): Position Percentage = (H1-H3) / (H4-H3)×100%. That is, the position percentage of the floating roller 222 relative to the slide rail 223 is 45%, and since 45% is less than 50%, it is determined that the real-time height H1 is less than the set height H2, and the process proceeds to step S603 described later.

[0149] For another example, when the position percentage of the floating roller 222 relative to the slide rail 223 is 55%, and 55%>50%, it is determined that the real-time height H1 is lower than the set height H2, and the process proceeds to step S602 described later.

[0150] S602: Determine that the real-time height of the floating roller is higher than the set height, and control the theoretical rotation speed of the driving motor to decrease.

[0151] Here, the controller 230 performs PID adjustment on the speed of the drive motor 213 according to the real-time height H1 measured in step S500, so as to reduce the speed of the drive motor 213. The PID adjustment specifically includes: a proportional component, an integral component, and a differential component.

[0152] The following describes the proportional link as an example. Specifically, the controller 230 substitutes the set height H2, which is 50% of the height of the tension support 221, and the real-time height H1, which is 55% of the height of the tension support 221, into the proportional formula to obtain a proportional coefficient K1 of 92.157% (i.e., 0.92157). The controller 230 then multiplies the proportional coefficient K1 by the theoretical speed N1 of the drive motor 213 calculated in step S400 according to formula (5): N2 = N1 × K1 to obtain the actual speed N2 required by the drive motor 213, which is 43 × 0.92157 = 39.62751 r / min. The controller 230 then reduces the theoretical speed to 39.62751 r / min and controls the drive motor 213 to rotate at the theoretical speed of 39.62751 r / min.

[0153] S603: Determine that the real-time height of the floating roller is lower than the set height, and control the theoretical speed of the driving motor to increase.

[0154] Here, the controller 230 performs PID adjustment on the rotation speed of the driving motor 213 according to the real-time height H1 measured in step S500, so as to increase the rotation speed of the driving motor 213.

[0155] The following describes the proportional link as an example. Specifically, the controller 230 substitutes the set height H2, which is 50% of the height of the tension support 221, and the real-time height H1, which is 45% of the height of the tension support 221, into the proportional formula to obtain a proportional coefficient K2 of 108% (i.e., 1.08). The controller 230 then multiplies the proportional coefficient K2 by the theoretical speed N1 of the drive motor 213 calculated in step S400 according to formula (5): N2 = N1 × K2 to obtain the actual speed N2 required by the drive motor 213, which is 43 × 1.08 = 46.44 r / min. The controller 230 then increases the theoretical speed to 46.44 r / min and controls the drive motor 213 to rotate at the theoretical speed of 46.44 r / min.

[0156] It should be noted that the controller 230 repeats steps S601 to S602, or steps S601 to S603, every 15 milliseconds to perform real-time, dynamic adjustment of the speed of the drive motor 213. The embodiment of the present application does not impose any particular limitation on the time interval at which the controller 230 repeats steps S601 to S602, or steps S601 to S603. For example, in other possible implementations, the time interval at which the controller 230 repeats steps S601 to S602, or steps S601 to S603, may be 20 milliseconds, 30 milliseconds, or 40 milliseconds, etc.

[0157] The controller 230 repeats steps S100 to S602 or steps S100 to S603 every 10 seconds to perform real-time, dynamic adjustment of the rotational speed of the drive motor 213. The embodiment of the present application does not impose any particular limitation on the time interval at which the controller 230 repeats steps S100 to S602 or steps S100 to S603. For example, in other possible implementations, the time interval at which the controller 230 repeats steps S100 to S602 or steps S100 to S603 may be 5 seconds, 15 seconds, or 20 seconds, etc.

[0158] In another possible embodiment, referring to Figure 1 The leather unwinding device 400 includes: a driven roller 401, an active roller (not shown) and a tension mechanism (the tension mechanism structure here is the same as Figure 3 and Figure 5 The structure of the tension mechanism shown in FIG. 1 is the same as that of the tension mechanism shown in FIG. 1 ), and the driven roller 401 provides the unprocessed leather 104 to the punching device 300 for punching the leather 104. For example, the punching device 300 is located between the driven roller 101 and the tension mechanism (not shown). The tension mechanism and the active roller are located between the punching device 300 and the leather unloading device 400, and the active roller is located between the tension mechanism and the leather unloading device 400.

[0159] In this embodiment, a driving roller (also called a discharge roller) transfers the leather 104 from the driven roller 401 to a tensioning mechanism located between the leather discharge device 400 and the punching device 300. The tensioning mechanism then transfers the leather 104 to the punching device 300 for punching. For example, a drive motor is provided at one end of the driving roller, connected to the driving roller via a speed reducer, and capable of driving the driving roller to rotate. For example, in some possible embodiments, the drive motor may also be directly connected to the driving roller.

[0160] For example, the controller 230 is connected to the drive motor. The controller 230 calculates the theoretical speed of the drive motor based on the average linear velocity of the punching device 300 and the diameter of the active roller. The controller 230 then controls the drive motor to rotate at the theoretical speed. The theoretical speed of the drive motor is then PID-controlled via a tension mechanism located between the punching device 300 and the leather unwinding device 400. This prevents the drive motor from unwinding too quickly or too slowly.

[0161] It should be noted that the average linear speed of the punching device 300 (also referred to as the average linear speed of the processing device) refers to the average speed at which the punching device 300 drives the leather 104 to move along the longitudinal direction X.

[0162] The present embodiment also provides a method for unwinding leather, which is applicable to the leather unwinding device 400. Specifically, the method includes the following steps:

[0163] S700: Acquire the diameter of the active roller.

[0164] Here, since the active roller is used to convey the leather 104 to the punching device 300 and the leather 104 does not wind around the punching device 300, the diameter of the active roller is constant. The controller 230 can directly read the diameter D2 of the active roller, for example, if the diameter D2 is 100 mm, and then proceed to step S800, which will be described later.

[0165] S800: Obtain the average linear velocity V2 of the punching device 300.

[0166] Here, since the driven roller 101 drives the punched leather 104, the average linear velocity of the driven roller 101 is the same as the average linear velocity of the punching device 300. The controller 230 can directly read the average linear velocity V of the driven roller 101. For example, the average linear velocity V2 of the driven roller 101 is 2200 mm / min. Then, the process proceeds to step S900 described below.

[0167] S900: Calculating the theoretical rotation speed of the driving motor according to the diameter of the active roller and the average linear speed of the punching device.

[0168] Specifically, the controller 230 calculates the circumference C2 of the active roller based on the diameter D2 and the formula (2): C = πD. The theoretical speed of the drive motor is then calculated using the formula (3): N = iV / C. Here, i is the reduction ratio of the reducer. In the embodiment of the present application, the reduction ratio i = 100:1.

[0169] For example, by substituting the diameter D2 = 100 mm obtained in step S700 into formula (2), the circumference of the active roller C2 = π × 100 = 214.2 mm can be calculated. Next, by substituting the circumference C2 = 314.2 mm and the average linear velocity V2 = 2200 mm / min obtained in step S800 into formula (3), the theoretical speed of the drive motor N3 = 2200 / 314.2 × 100 = 700.2 r / min can be calculated.

[0170] It should be noted that in some possible embodiments, the drive motor is not connected to the active roller through a reducer, but the output end of the drive motor is directly connected to the drive roller. Therefore, when calculating the theoretical speed N3 according to formula (3), it is not necessary to multiply the reduction ratio of the reducer 215. That is, by substituting the circumference C2 = 214.2 mm and the average linear velocity V2 = 2200 mm / min obtained in step S800 into the above formula (3), the theoretical speed of the drive motor N1 = 2200 / 314.2 = 7 r / min can be calculated.

[0171] After the theoretical rotation speed N3 of the drive motor is calculated, the process proceeds to step S1000 described later.

[0172] S1000: Control the driving motor to rotate at a theoretical speed.

[0173] Here, the controller 230 controls the driving motor to rotate at the theoretical rotation speed N1 = 700 r / min obtained in step S900 , and then proceeds to step S500 to be described later.

[0174] S1100: Acquire the real-time height of the floating roller.

[0175] S1201: Determine whether the real-time height of the floating roller is higher than the set height.

[0176] S1202: Determine that the real-time height of the floating roller is higher than the set height, and control the theoretical speed of the driving motor to decrease.

[0177] S1203: Determine that the real-time height of the floating roller is lower than the set height, and control the theoretical speed of the driving motor to increase.

[0178] Here, steps S1100 to S1203 are the same as steps S500 to S603 , and the description of steps S500 to S603 may be referred to, and will not be repeated here.

[0179] Now refer to Figure 8 , shown is a block diagram of an electronic device 600 according to an embodiment of the present application. The electronic device 600 is, for example, the leather processing device 10 described above. The electronic device 600 may include one or more processors 601 coupled to a controller hub 603. For at least one embodiment, the controller hub 603 communicates with the processor 601 via a multi-drop bus such as a front-side bus (FSB), a point-to-point interface such as a QuickPath Interconnect (QPI), or a similar connection. The processor 601 executes instructions that control general types of data processing operations. In one embodiment, the controller hub 603 includes, but is not limited to, a graphics & memory controller hub (GMCH) (not shown) and an input / output hub (IOH) (which may be on separate chips) (not shown), wherein the GMCH includes a memory and a graphics controller and is coupled to the IOH.

[0180] The electronic device 600 may also include a coprocessor 602 and a memory 604 coupled to a controller hub 603. Alternatively, one or both of the memory and the GMCH may be integrated within the processor (as described herein), with the memory 604 and coprocessor 602 coupled directly to the processor 601 and the controller hub 603, with the controller hub 603 being in a single chip with the IOH.

[0181] The memory 604 may be, for example, a dynamic random access memory (DRAM), a phase change memory (PCM), or a combination thereof. The memory 604 may include one or more tangible, non-transitory computer-readable media for storing data and / or instructions. The computer-readable storage medium stores instructions, specifically, temporary and permanent copies of the instructions. The instructions may include: when executed by at least one of the processors, causing the electronic device 600 to implement the following: Figure 6 When the instructions are executed on a computer, the computer executes the method disclosed in any one of the above embodiments or combined embodiments to control the speed of the drive motor to increase or decrease.

[0182] In one embodiment, the coprocessor 602 is a special-purpose processor, such as, for example, a high-throughput MIC (Many Integrated Core) processor, a network or communication processor, a compression engine, a graphics processor, a GPGPU (General-purpose computing on graphics processing units), or an embedded processor. The optional nature of the coprocessor 602 is indicated by a dashed line in FIG. Figure 8 middle.

[0183] In one embodiment, the electronic device 600 may further include a network interface controller (NIC) 606. The network interface 606 may include a transceiver for providing a radio interface for the electronic device 600, thereby communicating with any other suitable device (such as a front-end module, an antenna, etc.). In various embodiments, the network interface 606 may be integrated with other components of the electronic device 600. The network interface 606 may implement the functions of the communication unit in the above-mentioned embodiments.

[0184] The electronic device 600 may further include input / output (I / O) devices 605. The I / O 605 may include: a user interface designed to enable a user to interact with the electronic device 600; a peripheral component interface designed to enable peripheral components to interact with the electronic device 600; and / or sensors designed to determine environmental conditions and / or location information related to the electronic device 600.

[0185] It is worth noting that Figure 8 This is for illustrative purposes only. Figure 8 It is shown that the electronic device 600 includes multiple devices such as a processor 601, a controller hub 603, a memory 604, etc. However, in actual applications, the devices using the methods of the present application may only include a part of the devices of the electronic device 600, for example, it may only include the processor 601 and the network interface 606. Figure 8 The properties of the optional devices are shown with dotted lines.

[0186] Now refer to Figure 9 , which is a block diagram of a SoC (System on Chip) 700 according to an embodiment of the present application. Figure 9 In FIG, similar components have the same reference numerals. In addition, the dashed boxes are optional features of more advanced SoCs. Figure 9In the embodiment, the SoC includes: an interconnect unit 750 coupled to a processor 710; a system agent unit 780; a bus controller unit 790; an integrated memory controller unit 740; a set of one or more coprocessors 720, which may include integrated graphics logic, an image processor, an audio processor, and a video processor; a static random access memory (SRAM) unit 730; and a direct memory access (DMA) unit 760. In one embodiment, the coprocessors 720 include specialized processors, such as network or communication processors, compression engines, GPGPUs (General-purpose computing on graphics processing units), high-throughput MIC processors, or embedded processors.

[0187] The static random access memory (SRAM) unit 730 may include one or more tangible, non-transitory computer-readable media for storing data and / or instructions. The computer-readable storage medium stores instructions, and more specifically, temporary and permanent copies of the instructions. The instructions may include instructions that, when executed by at least one of the processors, cause the SoC to implement the following: Figure 6 When the instructions are executed on a computer, the computer executes the method disclosed in the above embodiment.

[0188] The embodiments of the present application also provide a computer program product for implementing the winding and unwinding methods provided in the above embodiments.

[0189] The various embodiments of the mechanisms disclosed in this application can be implemented in hardware, software, firmware, or a combination of these implementation methods. The embodiments of the present application can be implemented as computer program modules or module codes executed on a programmable system, which includes at least one processor, a storage system (including volatile and non-volatile memory and / or storage elements), at least one input device, and at least one output device.

[0190] A computer program module or module code can be applied to input instructions to perform the functions described herein and generate output signals. The output signals can be applied to one or more output devices in a known manner. For the purposes of this application, a processing system includes any system having a processor such as, for example, a digital signal processor (DSP), a microcontroller, an application specific integrated circuit (ASIC), or a microprocessor.

[0191] Module code can be implemented with high-level modular language or object-oriented programming language to communicate with the processing system. When necessary, module code can also be implemented with assembly language or machine language. In fact, the mechanism described in this application is not limited to the scope of any specific programming language. In either case, the language can be a compiled language or an interpreted language.

[0192] In some cases, the disclosed embodiments may be implemented in hardware, firmware, software, or any combination thereof. The disclosed embodiments may also be implemented as instructions carried or stored on one or more temporary or non-temporary machine-readable (e.g., computer-readable) storage media, which may be read and executed by one or more processors. For example, instructions may be distributed over a network or through other computer-readable media. Therefore, a machine-readable medium may include any mechanism for storing or transmitting a signal in a machine (e.g., computer) readable form, including but not limited to a floppy disk, an optical disk, an optical disk, a magneto-optical disk, a read-only memory (ROM), a random access memory (RAM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a magnetic card or an optical card, a flash memory, or a tangible machine-readable memory for transmitting a signal (e.g., a carrier wave, an infrared signal, a digital signal, etc.) using the Internet in an electrical, optical, acoustic, or other form of propagation signal. Accordingly, machine-readable media includes any type of machine-readable media suitable for storing or transmitting electronic instructions or signals in a form readable by a machine (eg, a computer).

[0193] Although the present invention has been illustrated and described with reference to certain preferred embodiments thereof, it should be understood by those skilled in the art that the above description is provided as a further detailed description of the present invention in conjunction with specific embodiments thereof, and that the specific implementation of the present invention is not limited to these descriptions. Those skilled in the art may make various changes in form and details, including simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A leather processing equipment, characterized in that, include: Processing equipment for processing leather; First bracket; an active roller, rotatably connected to the first bracket, the active roller extending along the width direction of the leather processing equipment, and used to receive the leather and wind the leather into a leather roll, or transfer the leather to the processing device; A driven roller extending along the width direction of the leather processing equipment, the driven roller being used to convey the leather to the driving roller; A driving motor is provided at one end of the active roller, and the driving motor is capable of driving the active roller to rotate; A controller connected to the drive motor, the controller controlling the drive motor to rotate at a theoretical speed; A tension mechanism, comprising: Tension bracket; a floating roller, rotatably connected to the tension bracket, the floating roller being movable relative to the tension bracket along a height direction of the leather processing equipment, the leather being configured to pass through the floating roller from below the floating roller; a floating roller position detection sensor, provided on the tension bracket, connected to the controller, and used to detect the real-time height of the floating roller; When the floating roller position detection sensor detects that the real-time height is greater than the set height, the controller controls the theoretical speed of the drive motor to decrease to prevent the leather from being too tight after being rolled up; when the real-time height is less than the set height, the controller controls the theoretical speed of the drive motor to increase to prevent the leather from being loose after being rolled up.

2. The leather processing equipment according to claim 1, characterized in that: The active roller is used to roll the leather around a leather roll; The leather processing equipment also includes: A roll diameter sensor is provided on the first bracket, and the roll diameter sensor is used to detect the real-time roll diameter of the leather roll on the active roller. The controller is connected to the roll diameter sensor, and the controller is used to calculate the theoretical rotation speed of the drive motor based on the real-time roll diameter and the average linear speed of the driven roller.

3. The leather processing equipment according to claim 1, characterized in that: The active roller is used to transfer the leather to the processing device; The controller is used to calculate the theoretical rotation speed of the driving motor according to the diameter of the active roller and the average linear speed of the processing device.

4. The leather processing equipment according to claim 1, characterized in that: Also includes: Two slide rails are provided at both ends of the tension bracket along the width direction, and each of the slide rails extends along the height direction; Along the width direction, one end of the floating roller is connected to one of the two slide rails in a manner that is slidable along the height direction, and the other end of the floating roller is connected to the other of the two slide rails in a manner that is slidable along the height direction.

5. The leather processing equipment according to claim 4, characterized in that: Each of the two slide rails comprises: an upper limit portion, provided at the upper end of the slide rail along the height direction, the upper limit portion being capable of preventing the floating roller from upwardly separating from the slide rail along the height direction; A lower limit portion is provided at the lower end of the slide rail along the height direction, and the lower limit portion can prevent the floating roller from falling off the slide rail downward along the height direction.

6. The leather processing equipment according to claim 5, characterized in that: Also includes: a limit detection sensor, provided on the tension bracket, capable of detecting the position of the floating roller, and connected to the controller; When the limit detection sensor detects that the floating roller is in contact with the upper limit portion, the controller controls the theoretical rotation speed of the driving motor to decrease; When the limit detection sensor detects that the floating roller is in contact with the lower limit portion, the controller controls the theoretical rotation speed of the driving motor to increase.

7. The leather processing equipment according to claim 6, characterized in that: The limit detection sensor includes: an upper limit detection sensor, provided at the upper limit portion, for detecting the position of the floating roller relative to the upper limit portion; The lower limit detection sensor is provided at the lower limit portion and is used for detecting the position of the floating roller relative to the lower limit portion.

8. The leather processing equipment according to claim 1, characterized in that: The floating roller position detection sensor is disposed below the floating roller along the height direction, and the floating roller position detection sensor is spaced apart from the floating roller along the height direction.

9. The leather processing equipment according to claim 1, characterized in that: The first bracket includes: an upper bracket, the active roller being rotatably connected to the upper bracket; a lower bracket, located below the upper bracket along the height direction, and the upper bracket is movable relative to the lower bracket along the width direction; a deviation-correcting roller, rotatably connected to the upper bracket, the deviation-correcting roller being used to receive the leather passing through the tension mechanism; a correction sensor, provided at one end of the upper bracket, the correction sensor being used to detect the position of the leather along the width direction, the correction sensor being connected to the controller; The controller is capable of controlling the upper bracket and the correcting roller to move relative to the lower bracket along the width direction.

10. A winding and unwinding method, characterized in that: Applied to leather processing equipment, the leather processing equipment includes a driving roller, a driving motor, a driven roller and a floating roller, the driving motor is used to drive the driving roller to rotate, the driving roller is used to receive leather and wind the leather into a leather roll, or transmit the leather to a processing device, the driven roller is used to provide the leather to the driving roller, and the winding and unwinding method includes: Controlling the drive motor to rotate at a theoretical speed, wherein the theoretical speed is calculated based on the real-time roll diameter of the leather roll and the average linear speed of the driven roller; or, the theoretical speed is calculated based on the diameter of the active roller and the average linear speed of the processing device; Obtaining the real-time height of the floating roller; If the real-time height of the floating roller is higher than the set height, the theoretical speed of the drive motor is controlled to decrease; or if the real-time height of the floating roller is higher than the set height, the theoretical speed of the drive motor is controlled to increase.

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