Automatic feeding method of splitting machine

Abstract

The invention discloses an automatic feeding method of a splitting machine, and particularly relates to the field of splitting machines, which comprises the following steps: step S100, preparing a flexible plastic sheet and a cotton thread; s200, the flexible plastic sheet and the paper roll are firmly thermally bonded together through heat sealing equipment at the new uncoiling starting position of the paper roll; s300, remaining tailings obtained after the last time of slitting is completed are found, and the cotton threads adhere to the tailings; s400, the splitting machine is started, the tailings drive the attached cotton threads to move under the action of slight power, and the tailings sequentially penetrate through all rollers of the splitting machine; and S500, after the cotton thread penetrates through the rollers, the tail end of the cotton thread adheres to the flexible plastic sheet which is thermally sealed on the new paper roll. Tailings obtained after last-time cutting are used for adhering cotton threads to be fed between the rollers of the splitting machine, then after the cotton threads are attached to the plastic pieces, the plastic pieces are guided by the cotton threads to drive new paper rolls to enter the splitting machine, and feeding loss is reduced.

Description

Technical Field

[0001] The present invention relates to the field of slitting machines, and more specifically, to an automatic feeding method for slitting machines. Background Art

[0002] A slitting machine is a device that cuts wide materials (such as paper, film, tape, non-woven fabric, aluminum foil, etc.) into multiple narrow materials. It can accurately cut materials according to predetermined width, length and other specifications to meet different industrial production or processing needs.

[0003] The slitting machine consists of an unwinding part, a slitting part, a rewinding part, a transmission part and a control system. The unwinding part is mainly used to place the coiled material to be slit, and usually includes an unwinding shaft, a tension control system, etc. The tension control system can adjust the tension of the coil during the unwinding process to ensure that the material enters the slitting area smoothly. For example, in a film slitting machine, the tension control of the unwinding part can prevent the film from stretching, deforming or relaxing during unwinding; the slitting part is the core part of the slitting machine, which includes blades (cutters, rollers, etc.), knife shafts, knife holders and other components. The knife shaft drives the blades to rotate, and the knife holder can adjust the position and spacing of the blades to achieve slitting of different widths. In some precision slitting machines, the knife holder also has an automatic adjustment function, which can accurately adjust the blade position according to the preset slitting width parameters; the winding part is used to collect narrow materials after slitting, including a winding shaft, a winding motor, etc. The speed of the winding shaft can be automatically adjusted according to the changes in the slitting speed and winding diameter of the material to keep the winding tension uniform. For example, in the winding process after paper slitting, reasonable winding tension can make the paper tightly wound and the edges neat.

[0004] The existing technology uses manual pulling to thread the paper tape, and the single-point pulling causes the paper tape to wrinkle. It is necessary to remove a lot of material heads after the pulling is completed, which increases the loss of slitting.

[0005] In order to solve the above problems, a technical solution is now provided. Summary of the invention

[0006] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a method for automatically feeding a slitting machine to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] An automatic feeding method for a slitting machine comprises the following steps:

[0009] Step S100, preparing a flexible plastic sheet and cotton thread;

[0010] Step S200, at the starting position of unwinding a new paper roll, heat-sealing the flexible plastic sheet and the paper roll firmly together using a heat-sealing device;

[0011] Step S300, finding the remaining tailings after the last cutting is completed, and adhering the cotton thread to the tailings;

[0012] Step S400, starting the slitting machine, so that the tail material starts to move with the adhered cotton thread under the action of slight power, and passes through each roller of the slitting machine in turn;

[0013] Step S500, after the cotton thread passes through each roller, the end of the cotton thread is adhered to the flexible plastic sheet heat-sealed on the new paper roll;

[0014] Step S600, start the slitting machine, the cotton thread will pull the flexible plastic sheet attached to it, and then drive the new paper roll to start moving and loading.

[0015] In a preferred embodiment, step S200 specifically includes the following contents:

[0016] Set the heat sealing temperature to 120-180°C, the heat sealing pressure to 0.3-0.6MPa, and the heat sealing time to 3-8s;

[0017] Before heat sealing, use a clean soft brush or compressed air to clean the surface of the paper roll unwinding start position to remove dust and paper scraps;

[0018] Place the flexible plastic sheet on the surface of the paper roll at the start of unwinding, start the heat sealing device, and perform heat sealing according to the set parameters;

[0019] Gently pull the plastic sheet by hand to observe the connection strength of the heat-sealed area.

[0020] In a preferred embodiment, step S300 specifically includes the following contents:

[0021] Clean up the tailings found, and determine the length of the cotton thread according to the structure of the slitting machine and the length of the guide path from the tailing position to the new paper roll;

[0022] Place one end of the cotton thread on the tailing material coated with glue, and gently press the cotton thread to make the cotton thread fully contact with the tailing material, ensuring that the cotton thread is firmly adhered to the tailing material;

[0023] After the cotton thread is attached, gently pull the cotton thread to check how firmly the cotton thread is attached to the tail material.

[0024] In a preferred embodiment, step S500 specifically includes the following contents:

[0025] After the cotton thread passes through each roller, the state of the end of the cotton thread is checked to determine the adhesion position of the end of the cotton thread and the flexible plastic sheet;

[0026] Wrap the end of the cotton thread around the flexible plastic sheet several times, then apply a small amount of glue to the wrapped area to adhere it;

[0027] After the adhesion is completed, the cotton thread is gently pulled by hand to check the adhesion strength between the cotton thread and the flexible plastic sheet.

[0028] In a preferred embodiment, step S600 specifically includes the following contents:

[0029] According to the size of the material conveying channel of the slitting machine and the expected amount of dust, select the electrostatic generator and electrostatic adsorption plate of corresponding power and specifications. The output voltage and current of the electrostatic generator are sufficient to effectively charge the dust particles, and the area and adsorption capacity of the electrostatic adsorption plate match the conveying channel and material flow rate.

[0030] Install electrostatic generators on both sides of the conveying channel, install electrostatic adsorption plates near the electrostatic generators, and set the voltage of the electrostatic generators to 5-30kV.

[0031] In a preferred embodiment, step S600 specifically further includes the following contents:

[0032] A high-precision industrial camera is installed at the starting end of the paper roll conveying path of the slitting machine. During the paper roll conveying process, the industrial camera captures images of the paper roll at a frequency of 10-30 frames per second;

[0033] The edge contour of the paper roll is identified by the edge detection algorithm, and the deviation is calculated based on the pre-set standard position and the actual edge position of the paper roll;

[0034] The deviation information is fed back to slightly increase the speed of the conveyor belt on the right side or slightly slow down the speed of the conveyor belt on the left side until the edge of the paper roll is aligned with the standard position.

[0035] In a preferred embodiment, step S600 specifically further includes the following contents:

[0036] The coordinates of the preset standard position of the paper roll in the conveying direction are , the actual coordinates of a point on the edge contour of the paper roll on the conveying plane are identified by the edge detection algorithm as ;

[0037] The deviation of the paper roll in the horizontal direction relative to the standard position is The calculation formula is:

[0038] .

[0039] In a preferred embodiment, step S600 specifically further includes the following contents:

[0040] According to the deviation, the conveyor belt speed is adjusted. Assume that the initial conveyor belt speed is , the adjustment factor is ;

[0041] when , that is, the actual position of the paper roll is to the right of the standard position, so the speed of the right conveyor belt needs to be slightly increased, and the speed of the left conveyor belt needs to be slightly slowed down;

[0042] Adjusted speed of the right conveyor belt The calculation formula is:

[0043] ;

[0044] Adjusted speed of the left conveyor belt The calculation formula is:

[0045] ;

[0046] when , that is, the actual position of the paper roll is to the left of the standard position, so the speed of the left conveyor belt needs to be slightly increased, and the speed of the right conveyor belt needs to be slightly slowed down;

[0047] Adjusted speed of the right conveyor belt The calculation formula is:

[0048] ;

[0049] Adjusted speed of the left conveyor belt The calculation formula is:

[0050] .

[0051] The technical effects and advantages of the automatic feeding method for a slitting machine of the present invention are as follows:

[0052] 1. By heat-sealing the flexible plastic sheet at the unwinding position of the paper roll, and then using the tailings of the last slitting to stick the cotton thread and feed it between the rollers of the slitting machine, and then after the cotton thread and the plastic sheet are attached, the plastic sheet is guided by the cotton thread to drive the new paper roll into the slitting machine, reducing the loss of feeding;

[0053] 2. Install a high-precision industrial camera at the start of the conveyor to capture images at a certain frequency and identify the edge contour of the paper roll through an edge detection algorithm, so as to accurately determine the actual position of the paper roll. By comparing with the pre-set standard position to calculate the deviation, and using the deviation information feedback to adjust the conveyor belt speed, high-precision control of the paper roll position can be achieved. This ensures that the paper roll can accurately enter the slitting machine, improves the slitting accuracy, and reduces the slitting error and product quality problems caused by the paper roll position deviation. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 The present invention is a schematic flow chart of an automatic feeding method for a slitting machine. DETAILED DESCRIPTION

[0055] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0056] Example 1

[0057] Figure 1 The present invention provides an automatic feeding method for a slitting machine, comprising the following steps:

[0058] Step S100, preparing a flexible plastic sheet and cotton thread;

[0059] Step S200, at the starting position of unwinding a new paper roll, heat-sealing the flexible plastic sheet and the paper roll firmly together using a heat-sealing device;

[0060] Step S300, finding the remaining tailings after the last cutting is completed, and adhering the cotton thread to the tailings;

[0061] Step S400, starting the slitting machine, so that the tail material starts to move with the adhered cotton thread under the action of slight power, and passes through each roller of the slitting machine in turn;

[0062] Step S500, after the cotton thread passes through each roller, the end of the cotton thread is adhered to the flexible plastic sheet heat-sealed on the new paper roll;

[0063] Step S600, start the slitting machine, the cotton thread will pull the flexible plastic sheet attached to it, and then drive the new paper roll to start moving and loading.

[0064] Step S200 specifically includes the following contents:

[0065] The heat sealing temperature was set to 120°C, the heat sealing pressure was set to 0.3MPa, and the heat sealing time was set to 3s;

[0066] Before heat sealing, use a clean soft brush or compressed air to clean the surface of the paper roll unwinding start position to remove dust and paper scraps;

[0067] Place the flexible plastic sheet on the surface of the paper roll at the start of unwinding, start the heat sealing device, and perform heat sealing according to the set parameters;

[0068] Gently pull the plastic sheet by hand to observe the connection strength of the heat-sealed area.

[0069] By adopting the above content, the flexible plastic sheet is accurately placed on the surface of the paper roll unwinding start position, and heat sealing is performed according to the set parameters, which can ensure the accuracy and consistency of heat sealing. This standardized operation process can ensure that each heat-sealed paper roll has similar quality, improving the stability of product quality. Moreover, by starting the heat sealing equipment for heat sealing and using the set parameters, the heat sealing process can be automated and standardized, reducing the heat sealing defects caused by human factors.

[0070] Step S300 specifically includes the following contents:

[0071] Clean up the tailings found, and determine the length of the cotton thread according to the structure of the slitting machine and the length of the guide path from the tailing position to the new paper roll;

[0072] Place one end of the cotton thread on the tailing material coated with glue, and gently press the cotton thread to make the cotton thread fully contact with the tailing material, ensuring that the cotton thread is firmly adhered to the tailing material;

[0073] After the cotton thread is attached, gently pull the cotton thread to check how firmly the cotton thread is attached to the tail material.

[0074] By adopting the above content, pulling inspection after the cotton thread is attached is a simple and effective quality control method. By gently pulling the cotton thread, you can directly judge whether it is firmly attached to the tail material. If the cotton thread can withstand a certain pulling force without falling off, it means that the adhesion quality is qualified and subsequent operations can be carried out.

[0075] Step S500 specifically includes the following contents:

[0076] After the cotton thread passes through each roller, the state of the end of the cotton thread is checked to determine the adhesion position of the end of the cotton thread and the flexible plastic sheet;

[0077] Wrap the end of the cotton thread around the flexible plastic sheet several times, then apply a small amount of glue to the wrapped area to adhere it;

[0078] After the adhesion is completed, the cotton thread is gently pulled by hand to check the adhesion strength between the cotton thread and the flexible plastic sheet.

[0079] By adopting the above content, the state of the cotton thread end is checked to ensure that the cotton thread is in the best condition before adhering to the flexible plastic sheet. If the cotton thread end is scattered, worn or contaminated, the adhesion effect may be affected. Through inspection, the cotton thread end can be arranged as necessary, such as trimming and cleaning, so as to create good conditions for subsequent firm adhesion.

[0080] Wrap the end of the cotton thread around the flexible plastic sheet several times. This wrapping method can increase the contact area and friction between the cotton thread and the plastic sheet. Compared with simple sticking, wrapping can fix the cotton thread from multiple angles, making it less likely to fall off when the cotton thread is under tension.

[0081] Step S600 specifically includes the following contents:

[0082] According to the size of the material conveying channel of the slitting machine and the expected amount of dust, select the electrostatic generator and electrostatic adsorption plate of corresponding power and specifications. The output voltage and current of the electrostatic generator are sufficient to effectively charge the dust particles, and the area and adsorption capacity of the electrostatic adsorption plate match the conveying channel and material flow rate;

[0083] Install electrostatic generators on both sides of the conveying channel, install electrostatic adsorption plates near the electrostatic generators, and set the voltage of the electrostatic generators to 5kV.

[0084] By adopting the above content, the electrostatic generator and electrostatic adsorption plate are selected according to the size of the material conveying channel of the slitting machine and the expected amount of dust, which can ensure that the performance of the equipment matches the actual work needs. The electrostatic generator with appropriate power and specifications can provide sufficient electric field strength to fully charge the dust particles, thereby improving the dust removal efficiency. The electrostatic adsorption plate with appropriate area and adsorption capacity can effectively capture the charged dust, avoid dust residue in the conveying channel, and ensure the cleanliness of the material conveying process.

[0085] Step S600 specifically includes the following contents:

[0086] A high-precision industrial camera is installed at the starting end of the paper roll conveying path of the slitting machine. During the paper roll conveying process, the industrial camera captures images of the paper roll at a frequency of 10 frames per second;

[0087] The edge contour of the paper roll is identified by the edge detection algorithm, and the deviation is calculated based on the pre-set standard position and the actual edge position of the paper roll;

[0088] The deviation information is fed back to slightly increase the speed of the conveyor belt on the right side or slightly slow down the speed of the conveyor belt on the left side until the edge of the paper roll is aligned with the standard position.

[0089] Step S600 specifically includes the following contents:

[0090] The coordinates of the preset standard position of the paper roll in the conveying direction are , the actual coordinates of a point on the edge contour of the paper roll on the conveying plane are identified by the edge detection algorithm as ;

[0091] The deviation of the paper roll in the horizontal direction relative to the standard position is The calculation formula is:

[0092] .

[0093] Step S600 specifically includes the following contents:

[0094] According to the deviation, the conveyor belt speed is adjusted. Assume that the initial conveyor belt speed is , the adjustment factor is ;

[0095] when , that is, the actual position of the paper roll is to the right of the standard position, so the speed of the right conveyor belt needs to be slightly increased, and the speed of the left conveyor belt needs to be slightly slowed down;

[0096] Adjusted speed of the right conveyor belt The calculation formula is:

[0097] ;

[0098] Adjusted speed of the left conveyor belt The calculation formula is:

[0099] ;

[0100] when , that is, the actual position of the paper roll is to the left of the standard position, so the speed of the left conveyor belt needs to be slightly increased, and the speed of the right conveyor belt needs to be slightly slowed down;

[0101] Adjusted speed of the right conveyor belt The calculation formula is:

[0102] ;

[0103] Adjusted speed of the left conveyor belt The calculation formula is:

[0104] .

[0105] By adopting the above content, a high-precision industrial camera is installed at the starting end of the conveying and images are collected at a certain frequency, so that the status information of the paper roll during the conveying process can be obtained in real time. The edge detection algorithm can be used to identify the edge contour of the paper roll to accurately determine the actual position of the paper roll. Compared with traditional manual positioning or simple mechanical positioning methods, this has higher accuracy and reliability, and avoids inaccurate positioning caused by factors such as human judgment errors or wear of mechanical parts.

[0106] By adjusting the speed of the left and right sides of the conveyor belt according to the positive and negative and size of the deviation, the position of the paper roll can be accurately corrected. By speeding up the conveyor belt on one side and slowing down the other side, a lateral correction force can be applied to the paper roll to gradually move it to the standard position. This dynamic adjustment method can effectively align the edge of the paper roll with the standard position, ensuring that the paper roll is in the correct position when entering the slitting machine, and improving the slitting accuracy.

[0107] Example 2

[0108] Figure 1 The present invention provides an automatic feeding method for a slitting machine, comprising the following steps:

[0109] Step S100, preparing a flexible plastic sheet and cotton thread;

[0110] Step S200, at the starting position of unwinding a new paper roll, heat-sealing the flexible plastic sheet and the paper roll firmly together using a heat-sealing device;

[0111] Step S300, finding the remaining tailings after the last cutting is completed, and adhering the cotton thread to the tailings;

[0112] Step S400, starting the slitting machine, so that the tail material starts to move with the adhered cotton thread under the action of slight power, and passes through each roller of the slitting machine in turn;

[0113] Step S500, after the cotton thread passes through each roller, the end of the cotton thread is adhered to the flexible plastic sheet heat-sealed on the new paper roll;

[0114] Step S600, start the slitting machine, the cotton thread will pull the flexible plastic sheet attached to it, and then drive the new paper roll to start moving and loading.

[0115] Step S200 specifically includes the following contents:

[0116] The heat sealing temperature was set to 150°C, the heat sealing pressure was set to 0.4 MPa, and the heat sealing time was set to 5 s;

[0117] Before heat sealing, use a clean soft brush or compressed air to clean the surface of the paper roll unwinding start position to remove dust and paper scraps;

[0118] Place the flexible plastic sheet on the surface of the paper roll at the start of unwinding, start the heat sealing device, and perform heat sealing according to the set parameters;

[0119] Gently pull the plastic sheet by hand to observe the connection strength of the heat-sealed area.

[0120] Step S300 specifically includes the following contents:

[0121] Clean up the tailings found, and determine the length of the cotton thread according to the structure of the slitting machine and the length of the guide path from the tailing position to the new paper roll;

[0122] Place one end of the cotton thread on the tailing material coated with glue, and gently press the cotton thread to make the cotton thread fully contact with the tailing material, ensuring that the cotton thread is firmly adhered to the tailing material;

[0123] After the cotton thread is attached, gently pull the cotton thread to check how firmly the cotton thread is attached to the tail material.

[0124] Step S500 specifically includes the following contents:

[0125] After the cotton thread passes through each roller, the state of the end of the cotton thread is checked to determine the adhesion position of the end of the cotton thread and the flexible plastic sheet;

[0126] Wrap the end of the cotton thread around the flexible plastic sheet several times, then apply a small amount of glue to the wrapped area to adhere it;

[0127] After the adhesion is completed, the cotton thread is gently pulled by hand to check the adhesion strength between the cotton thread and the flexible plastic sheet.

[0128] Step S600 specifically includes the following contents:

[0129] According to the size of the material conveying channel of the slitting machine and the expected amount of dust, select the electrostatic generator and electrostatic adsorption plate of corresponding power and specifications. The output voltage and current of the electrostatic generator are sufficient to effectively charge the dust particles, and the area and adsorption capacity of the electrostatic adsorption plate match the conveying channel and material flow rate;

[0130] Install electrostatic generators on both sides of the conveying channel, install electrostatic adsorption plates near the electrostatic generators, and set the voltage of the electrostatic generators to 20kV.

[0131] Step S600 specifically includes the following contents:

[0132] A high-precision industrial camera is installed at the starting end of the paper roll conveying path of the slitting machine. During the paper roll conveying process, the industrial camera captures images of the paper roll at a frequency of 20 frames per second;

[0133] The edge contour of the paper roll is identified by the edge detection algorithm, and the deviation is calculated based on the pre-set standard position and the actual edge position of the paper roll;

[0134] The deviation information is fed back to slightly increase the speed of the conveyor belt on the right side or slightly slow down the speed of the conveyor belt on the left side until the edge of the paper roll is aligned with the standard position.

[0135] Step S600 specifically includes the following contents:

[0136] The coordinates of the preset standard position of the paper roll in the conveying direction are , the actual coordinates of a point on the edge contour of the paper roll on the conveying plane are identified by the edge detection algorithm as ;

[0137] The deviation of the paper roll in the horizontal direction relative to the standard position is The calculation formula is:

[0138] .

[0139] Step S600 specifically includes the following contents:

[0140] According to the deviation, the conveyor belt speed is adjusted. Assume that the initial conveyor belt speed is , the adjustment factor is ;

[0141] when , that is, the actual position of the paper roll is to the right of the standard position, so the speed of the right conveyor belt needs to be slightly increased, and the speed of the left conveyor belt needs to be slightly slowed down;

[0142] Adjusted speed of the right conveyor belt The calculation formula is:

[0143] ;

[0144] Adjusted speed of the left conveyor belt The calculation formula is:

[0145] ;

[0146] when , that is, the actual position of the paper roll is to the left of the standard position, so the speed of the left conveyor belt needs to be slightly increased, and the speed of the right conveyor belt needs to be slightly slowed down;

[0147] Adjusted speed of the right conveyor belt The calculation formula is:

[0148] ;

[0149] Adjusted speed of the left conveyor belt The calculation formula is:

[0150] .

[0151] Example 3

[0152] Figure 1 The present invention provides an automatic feeding method for a slitting machine, comprising the following steps:

[0153] Step S100, preparing a flexible plastic sheet and cotton thread;

[0154] Step S200, at the starting position of unwinding a new paper roll, heat-sealing the flexible plastic sheet and the paper roll firmly together using a heat-sealing device;

[0155] Step S300, finding the remaining tailings after the last cutting is completed, and adhering the cotton thread to the tailings;

[0156] Step S400, starting the slitting machine, so that the tail material starts to move with the adhered cotton thread under the action of slight power, and passes through each roller of the slitting machine in turn;

[0157] Step S500, after the cotton thread passes through each roller, the end of the cotton thread is adhered to the flexible plastic sheet heat-sealed on the new paper roll;

[0158] Step S600, start the slitting machine, the cotton thread will pull the flexible plastic sheet attached to it, and then drive the new paper roll to start moving and loading.

[0159] Step S200 specifically includes the following contents:

[0160] The heat sealing temperature was set to 180°C, the heat sealing pressure was set to 0.6MPa, and the heat sealing time was set to 8s;

[0161] Before heat sealing, use a clean soft brush or compressed air to clean the surface of the paper roll unwinding start position to remove dust and paper scraps;

[0162] Place the flexible plastic sheet on the surface of the paper roll at the start of unwinding, start the heat sealing device, and perform heat sealing according to the set parameters;

[0163] Gently pull the plastic sheet by hand to observe the connection strength of the heat-sealed area.

[0164] Step S300 specifically includes the following contents:

[0165] Clean up the tailings found, and determine the length of the cotton thread according to the structure of the slitting machine and the length of the guide path from the tailing position to the new paper roll;

[0166] Place one end of the cotton thread on the tailing material coated with glue, and gently press the cotton thread to make the cotton thread fully contact with the tailing material, ensuring that the cotton thread is firmly adhered to the tailing material;

[0167] After the cotton thread is attached, gently pull the cotton thread to check how firmly the cotton thread is attached to the tail material.

[0168] Step S500 specifically includes the following contents:

[0169] After the cotton thread passes through each roller, the state of the end of the cotton thread is checked to determine the adhesion position of the end of the cotton thread and the flexible plastic sheet;

[0170] Wrap the end of the cotton thread around the flexible plastic sheet several times, then apply a small amount of glue to the wrapped area to adhere it;

[0171] After the adhesion is completed, the cotton thread is gently pulled by hand to check the adhesion strength between the cotton thread and the flexible plastic sheet.

[0172] Step S600 specifically includes the following contents:

[0173] According to the size of the material conveying channel of the slitting machine and the expected amount of dust, select the electrostatic generator and electrostatic adsorption plate of corresponding power and specifications. The output voltage and current of the electrostatic generator are sufficient to effectively charge the dust particles, and the area and adsorption capacity of the electrostatic adsorption plate match the conveying channel and material flow rate;

[0174] Install electrostatic generators on both sides of the conveying channel, install electrostatic adsorption plates near the electrostatic generators, and set the voltage of the electrostatic generators to 30kV.

[0175] Step S600 specifically includes the following contents:

[0176] A high-precision industrial camera is installed at the starting end of the paper roll conveying path of the slitting machine. During the paper roll conveying process, the industrial camera captures images of the paper roll at a frequency of 30 frames per second;

[0177] The edge contour of the paper roll is identified by the edge detection algorithm, and the deviation is calculated based on the pre-set standard position and the actual edge position of the paper roll;

[0178] The deviation information is fed back to slightly increase the speed of the conveyor belt on the right side or slightly slow down the speed of the conveyor belt on the left side until the edge of the paper roll is aligned with the standard position.

[0179] Step S600 specifically includes the following contents:

[0180] The coordinates of the preset standard position of the paper roll in the conveying direction are , the actual coordinates of a point on the edge contour of the paper roll on the conveying plane are identified by the edge detection algorithm as ;

[0181] The deviation of the paper roll in the horizontal direction relative to the standard position is The calculation formula is:

[0182] .

[0183] Step S600 specifically includes the following contents:

[0184] According to the deviation, the conveyor belt speed is adjusted. Assume that the initial conveyor belt speed is , the adjustment factor is ;

[0185] when , that is, the actual position of the paper roll is to the right of the standard position, so the speed of the right conveyor belt needs to be slightly increased, and the speed of the left conveyor belt needs to be slightly slowed down;

[0186] Adjusted speed of the right conveyor belt The calculation formula is:

[0187] ;

[0188] Adjusted speed of the left conveyor belt The calculation formula is:

[0189] ;

[0190] when , that is, the actual position of the paper roll is to the left of the standard position, so the speed of the left conveyor belt needs to be slightly increased, and the speed of the right conveyor belt needs to be slightly slowed down;

[0191] Adjusted speed of the right conveyor belt The calculation formula is:

[0192] ;

[0193] Adjusted speed of the left conveyor belt The calculation formula is:

[0194] .

[0195] By feeding the paper rolls through Examples 1 to 3, the loss of feeding can be greatly reduced. There are slight cracks at the connection between Examples 1 and 3, and the connection of Example 2 is always in a tight state.

[0196] The above formulas are all dimensionless and numerical calculations. The formula is a formula for the most recent real situation obtained by collecting a large amount of data and performing software simulation. The preset parameters and thresholds in the formula are set by technicians in this field according to actual conditions.

[0197] The above embodiments may be implemented in whole or in part by software, hardware, firmware or any other combination thereof. When implemented by software, the above embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium, or may be transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from one website, computer, server or data center to another website, computer, server or data center by wired (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server or data center that contains one or more available media sets. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium. The semiconductor medium may be a solid-state hard disk.

[0198] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0199] In the several embodiments provided in the present application, it should be understood that the disclosed methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of the units is only a logical function division, and there may be other division methods in actual implementation. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, indirect coupling or communication connection of devices or units, which may be electrical, mechanical or other forms.

[0200] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, and may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0201] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0202] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, and other media that can store program codes.

[0203] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0204] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for automatic feeding of a slitting machine, characterized in that: The steps include: Step S100, preparing a flexible plastic sheet and cotton thread; Step S200, at the starting position of unwinding a new paper roll, heat-sealing the flexible plastic sheet and the paper roll firmly together using a heat-sealing device; Step S300, finding the remaining tailings after the last cutting is completed, and adhering the cotton thread to the tailings; Step S400, starting the slitting machine, so that the tail material starts to move with the adhered cotton thread under the action of slight power, and passes through each roller of the slitting machine in turn; Step S500, after the cotton thread passes through each roller, the end of the cotton thread is adhered to the flexible plastic sheet heat-sealed on the new paper roll; Step S600, start the slitting machine, the cotton thread will pull the flexible plastic sheet attached to it, and then drive the new paper roll to start moving and loading.

2. The automatic feeding method for a slitting machine according to claim 1, characterized in that: Step S200 specifically includes the following contents: Set the heat sealing temperature to 120-180°C, the heat sealing pressure to 0.3-0.6MPa, and the heat sealing time to 3-8s; Before heat sealing, use a clean soft brush or compressed air to clean the surface of the paper roll unwinding start position to remove dust and paper scraps; Place the flexible plastic sheet on the surface of the paper roll at the start of unwinding, start the heat sealing device, and perform heat sealing according to the set parameters; Gently pull the plastic sheet by hand to observe the connection strength of the heat-sealed area.

3. The automatic feeding method for a slitting machine according to claim 2, characterized in that: Step S300 specifically includes the following contents: Clean up the tailings found, and determine the length of the cotton thread according to the structure of the slitting machine and the length of the guide path from the tailing position to the new paper roll; Place one end of the cotton thread on the tailing material coated with glue, and gently press the cotton thread to make the cotton thread fully contact with the tailing material, ensuring that the cotton thread is firmly adhered to the tailing material; After the cotton thread is attached, gently pull the cotton thread to check how firmly the cotton thread is attached to the tail material.

4. The automatic feeding method for a slitting machine according to claim 3, characterized in that: Step S500 specifically includes the following contents: After the cotton thread passes through each roller, the state of the end of the cotton thread is checked to determine the adhesion position of the end of the cotton thread and the flexible plastic sheet; Wrap the end of the cotton thread around the flexible plastic sheet several times, then apply a small amount of glue to the wrapped area to adhere it; After the adhesion is completed, the cotton thread is gently pulled by hand to check the adhesion strength between the cotton thread and the flexible plastic sheet.

5. The automatic feeding method for a slitting machine according to claim 4, characterized in that: Step S600 specifically includes the following contents: According to the size of the material conveying channel of the slitting machine and the expected amount of dust, select the electrostatic generator and electrostatic adsorption plate of corresponding power and specifications. The output voltage and current of the electrostatic generator are sufficient to effectively charge the dust particles, and the area and adsorption capacity of the electrostatic adsorption plate match the conveying channel and material flow rate; Install electrostatic generators on both sides of the conveying channel, install electrostatic adsorption plates near the electrostatic generators, and set the voltage of the electrostatic generators to 5-30kV.

6. The automatic feeding method for a slitting machine according to claim 5, characterized in that: Step S600 specifically includes the following contents: A high-precision industrial camera is installed at the starting end of the paper roll conveying path of the slitting machine. During the paper roll conveying process, the industrial camera captures images of the paper roll at a frequency of 10-30 frames per second; The edge contour of the paper roll is identified by the edge detection algorithm, and the deviation is calculated based on the pre-set standard position and the actual edge position of the paper roll; The deviation information is fed back to slightly increase the speed of the conveyor belt on the right side or slightly slow down the speed of the conveyor belt on the left side until the edge of the paper roll is aligned with the standard position.

7. The automatic feeding method for a slitting machine according to claim 6, characterized in that: Step S600 specifically includes the following contents: The coordinates of the preset standard position of the paper roll in the conveying direction are , the actual coordinates of a point on the edge contour of the paper roll on the conveying plane are identified by the edge detection algorithm as ; The deviation of the paper roll in the horizontal direction relative to the standard position is The calculation formula is: 。 8. The automatic feeding method for a slitting machine according to claim 7, characterized in that: Step S600 specifically includes the following contents: Adjust the conveyor belt speed according to the deviation. Suppose the initial conveyor belt speed is , the adjustment factor is ; when , that is, the actual position of the paper roll is to the right of the standard position, so the speed of the right conveyor belt needs to be slightly increased, and the speed of the left conveyor belt needs to be slightly slowed down; Adjusted speed of the right conveyor belt The calculation formula is: ； Adjusted speed of the left conveyor belt The calculation formula is: ； when , that is, the actual position of the paper roll is to the left of the standard position, so the speed of the left conveyor belt needs to be slightly increased, and the speed of the right conveyor belt needs to be slightly slowed down; Adjusted speed of the right conveyor belt The calculation formula is: ； Adjusted speed of the left conveyor belt The calculation formula is: 。

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