CN115416147B - Joint waste discharging system and method based on position of joint on plate surface - Google Patents
Joint waste discharging system and method based on position of joint on plate surface Download PDFInfo
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- CN115416147B CN115416147B CN202211067323.3A CN202211067323A CN115416147B CN 115416147 B CN115416147 B CN 115416147B CN 202211067323 A CN202211067323 A CN 202211067323A CN 115416147 B CN115416147 B CN 115416147B
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- joint
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- 239000002699 waste material Substances 0.000 title claims abstract description 122
- 238000007599 discharging Methods 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims description 9
- 238000001514 detection method Methods 0.000 claims abstract description 31
- 238000005520 cutting process Methods 0.000 claims description 79
- 238000001035 drying Methods 0.000 claims description 8
- 230000003044 adaptive effect Effects 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000005304 joining Methods 0.000 claims description 2
- 238000004804 winding Methods 0.000 abstract 1
- 210000001503 joint Anatomy 0.000 description 36
- 229910052602 gypsum Inorganic materials 0.000 description 20
- 239000010440 gypsum Substances 0.000 description 20
- 238000004519 manufacturing process Methods 0.000 description 12
- 230000001276 controlling effect Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B15/00—General arrangement or layout of plant ; Industrial outlines or plant installations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/14—Apparatus or processes for treating or working the shaped or preshaped articles for dividing shaped articles by cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
- B28B17/0063—Control arrangements
- B28B17/0072—Product control or inspection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
- B28B17/0063—Control arrangements
- B28B17/0081—Process control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H19/00—Changing the web roll
- B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
- B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H26/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms
- B65H26/06—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms responsive to predetermined lengths of webs
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Structural Engineering (AREA)
- Replacement Of Web Rolls (AREA)
Abstract
The application discloses a joint waste discharging system based on the position of a joint on a plate surface, which comprises a plate cutter, a cutter encoder, a allowance statistics module, a paper receiving unit, a length detection unit, a waste discharging unit and a control device, wherein the control device controls the paper receiving unit to receive paper according to the residual amount of roll paper and controls the plate cutter to cut a plate according to the residual amount; the control device is provided with a distance limit value in advance, controls the paper receiving unit to receive paper, and cuts and discharges the plate with the joint locally when the paper winding allowance is smaller than the distance limit value. According to the application, through the relation among the length of the paper roll, the length of the plate and the allowance of the paper roll, the positions of the tail of the paper roll on the plate and the positions of the upper and lower paper joints on the plate are judged, the waste plate placing area and the waste plate placing size are judged according to the joint positions, and the partial plate with the joints is cut and placed, so that the waste of the plate and the waste of the face paper are reduced, and the cost is saved.
Description
Technical Field
The application relates to the technical field of gypsum board manufacturing, in particular to a joint waste discharging system and a waste discharging method based on the position of a joint on a board surface.
Background
When the facing paper is switched in the gypsum board production process, the tail part of the last paper roll and the beginning part of the beginning of the next paper roll are required to be bonded together, an upper paper joint and a lower paper joint are generated at the bonding positions of the upper paper and the lower paper, when the plates with joints enter a dryer for drying, the bonded joints have the risk of drying and degumming, and the fallen paper tape is easy to wind a conveying roller way of the dryer, so that the plates in the dryer are blocked and even stop faults are caused. In order to avoid clogging of the dryer, therefore, the sheet material with the tabs is usually discarded before it enters the dryer, avoiding that the sheet material with the tabs enters the dryer.
However, a long plate entering the dryer correspondingly produces two finished plates, one long plate with a connector is discharged in a conventional manner, the connector only occupies a small area of the plate, and at least one complete plate is wasted by discharging waste, so that a large amount of waste is caused.
According to long-term practice summary, the long plates can smoothly pass through the dryer after the upper and lower paper joints and the end parts of the gypsum boards exceed a certain distance, the board of the dryer is not blocked or stopped, the board is directly discharged and discarded, and the discharged board needs more labor and time cost to be processed, so that unnecessary waste is caused.
Disclosure of Invention
The application aims to provide a joint waste discharging system and a waste discharging method based on the position of a joint on a plate surface, which are used for solving the technical problem that in the prior art, unnecessary waste is caused by discharging all plates with joints before entering a dryer.
In order to solve the technical problems, the application specifically provides the following technical scheme:
a joint waste disposal system based on the position of a joint on a panel, comprising:
the plate cutting machine is used for cutting the plate to obtain a long plate with an adaptive length for entering the dryer, and can cut the waste plate with the upper paper joint;
the cutter encoder is arranged on a cutter of the plate cutting machine and rotates along with the cutter, and the encoder generates a pulse signal every time the cutter cuts a long plate;
the allowance counting module is used for calculating the remaining amount of the current paper roll according to the pulse signal book generated by the cutter encoder and the long plate specification;
a paper receiving unit for automatically bonding a new paper roll with the current paper roll according to the residual quantity of the current paper roll;
the length detection unit is used for determining the waste discharge length of the joint, and the waste discharge plate at least comprises an area where the upper paper joint and the lower paper joint are positioned;
the waste discharging unit is arranged at the downstream of the plate cutting machine and is used for discharging waste plates with upper and lower paper joints, which are generated by cutting of the plate cutting machine;
the control device is respectively connected with the control device, controls the paper receiving piece of the paper receiving unit to receive paper according to the surplus and controls the plate cutting machine to cut plates according to the surplus;
the control device is used for controlling the paper receiving unit to receive paper when the lower roll paper allowance is larger than the distance limit value, controlling the paper receiving unit to receive paper when the lower roll paper allowance is smaller than the distance limit value, controlling the plate cutting machine to cut plates with joints, and controlling the waste discharging unit to discharge waste of the plates with joints.
As a preferable mode of the present application, the length detecting unit is provided downstream of the sheet receiving unit, and the length detecting unit is provided upstream of the sheet cutting machine, and the sheet cutting machine and the sheet receiving unit are respectively in control association with the length detecting unit.
As a preferred embodiment of the present application, the discharging unit is disposed at a side of the sheet conveying line downstream of the sheet cutting machine, and the discharging unit includes a conveying roller section and a guide roller section connected to the sheet conveying line, and the guide roller section guides and separates the waste sheet with the upper paper joint from the sheet conveying line to the conveying roller.
As a preferred scheme of the application, the allowance counting module updates the allowance once every time the plate cutting machine cuts the plate within the length range of a paper roll;
when the whole length of the current roll paper is fixed as S, the length of a long plate specification which enters a dryer and is dried is L, in the range of the length of the current roll paper, the number of signals generated by the cutter encoder is n, the residual quantity is set as M, and the residual quantity is updated by a residual quantity counting module according to M=S-n x L, wherein n is a positive integer, n=0, 1,2,3 and …, and the number of the whole long plates corresponding to the length of one roll paper is represented.
As a preferable scheme of the application, after the plate is cut by the plate cutting machine, when the updated residual quantity M value of the residual quantity statistics module is smaller than the length L of a long plate, the control device clears and resets the pulse number counted in an accumulated way;
the length detection unit judges the paper receiving position of the paper receiving unit and the joint waste discharge length according to the remainder length of the new paper roll, which is less than the complete long plate after the complete long plate is produced correspondingly;
the control device regulates and controls the paper receiving unit to implement paper receiving according to the judged paper receiving piece according to the judging result of the length detection unit, regulates and controls the plate cutting machine to cut the plate so as to cut the plate with the upper and lower paper connectors, so that the waste discharging unit discharges waste, and when the plate cutting machine starts to cut a new plate corresponding to a roll of paper, the control device restarts counting the pulse number generated by the cutter encoder.
As a preferable mode of the present application, when the remaining amount M is smaller than a long plate length L, it is set to M',
m' =s-n×l, and wherein n is the maximum positive integer produced for a roll length;
if the overlapping length of the upper and lower paper joints is Δm, the paper joining conditions are as follows:
the distance limit value is > M '>0, the paper receiving unit controls the overlapping length of the upper paper receiving and the lower paper receiving to be M' > DeltaM >1/3M ', and the control device controls the cutting and discharging length of the plate cutting machine to be M';
the delta M+ distance limit value is greater than M '> distance limit value, the paper receiving unit controls the overlapping length of the upper paper receiving and the lower paper receiving to be greater than M' > delta M >1/3M ', and the control device controls the cutting-off and discharging length of the plate cutting machine to be M';
the L-distance limit value is larger than M ' > DeltaM+ and the paper receiving unit controls the overlapping length of the upper paper receiving paper and the lower paper receiving paper to be larger than M ' > DeltaM >1/2M ';
and L is greater than M '> L-distance limit value, the paper receiving unit controls the overlapping length of the upper paper receiving and the lower paper receiving to be greater than 1/2 distance limit value is greater than deltaM and greater than 0, and the control device controls the cutting and waste discharging length of the plate cutting machine to be M'.
As a preferable scheme of the application, the length detection unit comprises a ranging sensor, the control device regulates and controls the ranging sensor to start detection after the plate cutting machine cuts the last complete long plate produced corresponding to one paper roll, and a detection distance signal of the ranging sensor is transmitted to the control device in real time;
the control device regulates and controls the paper receiving unit to receive paper according to the residual quantity, the corresponding matching paper receiving condition and the distance detection value of the distance measuring sensor, and enables the sum of the overlapping length delta M of the upper paper connector and the lower paper connector and the distance measured by the distance measuring sensor to be equal to the residual quantity M'.
A waste discharge method of a joint waste discharge system based on the position of a joint on a plate surface comprises the following steps:
step 100: cutting the complete long plate and monitoring and updating the current paper roll residual quantity in real time;
step 200: judging the paper receiving position of the next paper roll and the length of the waste board according to the residual length of the current paper roll which is less than one complete board;
step 300: receiving paper according to the pre-determined paper receiving position;
step 400: cutting the plate with the upper and lower paper joints at the waste discharging part according to the pre-judged waste discharging length;
step 500: the contents of steps 100-400 are repeated.
As a preferred solution of the present application, in the step 200, the paper receiving position and the paper receiving length are determined according to the remaining length of the current paper roll which is less than a complete sheet, and the determination principle is that the waste amount of cutting the sheet is reduced and the waste of the facing paper is reduced, and the priority of reducing the waste amount of cutting the sheet is greater than that of reducing the waste of the facing paper.
As a preferable scheme of the application, the distance boundary lines between the upper paper joint and the lower paper joint and the two ends of the plate head and the plate tail of the complete plate are arranged, and the bonding area of the upper paper and the lower paper and the length of the cutting waste discharging range are defined according to the position of the tail of the lower paper roll on the complete plate and the position distance relation between the tail of the paper roll and the distance boundary lines.
Compared with the prior art, the application has the following beneficial effects:
according to the application, through the relation among the length of the paper roll, the length of the plate and the allowance of the paper roll, the positions of the tail of the paper roll on the plate and the positions of the upper and lower paper joints on the plate are judged, and the waste plate discharging area and the waste plate discharging size are judged according to the joint positions, so that the method has the following advantages:
the joint is controlled at a safe position far away from the plate head, and the plates of the joint at the safe position far away from the plate head can smoothly pass through the dryer without waste discharge, so that waste is avoided, and the cost is saved;
the butt joint is close to the plate with the end part of the plate not in a safe position, the plate with the joint is selectively and partially discharged, the whole plate is prevented from being cut and discharged, the waste of the plate and the waste of the face protection paper are reduced, and the cost is saved;
and the overlapping length of the joint is selectively regulated and controlled according to the paper roll allowance, so that the waste of the facing paper is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.
FIG. 1 is a schematic diagram of a system structure according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a system control according to an embodiment of the present application;
FIG. 3 is a schematic flow chart of a system for adjusting and controlling joint positions according to an embodiment of the present application;
FIG. 4 is a flowchart of the steps of the method for disposing waste according to the embodiment of the present application;
reference numerals in the drawings are respectively as follows:
1-a plate cutting machine; 2-a cutter encoder; 3-a margin statistics module; 4-a paper receiving unit; a 5-length detection unit; 6-a waste discharging unit; 7-a control device; 8-a plate conveying line; 9-a conveying roller section; 10-guiding roller section.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The application is suitable for the technical field of gypsum board production line, mainly aims at the problem of waste discharge of boards with upper and lower paper joints in two control and three control of gypsum boards, judges the position of the tail of a paper roll on the boards according to the relation among the length of the paper roll, the length of the boards and the allowance of the paper roll, controls the positions of the upper and lower paper joints on the boards according to the positions of the tail of the paper roll on the boards, judges the waste discharge area of the boards and the waste discharge size of the boards according to the positions of the upper and lower paper joints on the boards, and reduces the waste of cutting boards and the waste of face protection paper because the cutting and the waste discharge are partial boards with joints.
As shown in fig. 1 and 2, the present application provides a joint discharging system based on the position of a joint on a board surface, which comprises a total control device 7 for controlling a production line to discharge waste, and a board cutter 1 for cutting boards, wherein the board cutter 1 is mainly used for cutting boards to obtain long boards with an adaptive length into a dryer, and is secondly used for cutting waste board boards with upper paper joints, a cutter encoder 2 is arranged on a cutter of the board cutter 1 and rotates along with the cutter, and each time the cutter cuts one long board, the cutter encoder 2 generates a pulse signal, and a margin counting module 3 for calculating the residual amount of a current paper roll according to the pulse signal book generated by the cutter encoder 2 and the long board specification, a paper receiving unit 4 for automatically bonding a new paper roll with the current paper roll to realize paper feeding according to the residual amount of the current paper roll, a length detecting unit 5 for auxiliary detection to determine the discharge length, and the discharge board at least comprises an area where the upper paper joint and the lower paper joint are located.
A waste discharging unit 6 disposed downstream of the sheet cutter 1 for discharging waste sheet materials with upper and lower paper joints, which are cut by the sheet cutter 1; the plate cutting machine 1, the cutter encoder 2, the allowance statistics module 3, the paper receiving unit 4, the length detection unit 5 and the waste discharge unit 6 are respectively connected with the control device 7, the control device 7 controls the paper receiving strip piece of the paper receiving unit 4 to receive paper according to the allowance, and controls the plate cutting machine 1 to cut plates according to the allowance.
Specifically, the length detection unit 5 is disposed downstream of the sheet receiving unit 4, and the length detection unit 5 is disposed upstream of the sheet cutting machine 1, with the sheet cutting machine 1 and the sheet receiving unit 4 being respectively in control association with the length detection unit 5.
As shown in fig. 1, the discard unit 6 is disposed at the side of the sheet conveying line downstream of the sheet cutter 1, and the discard unit 6 includes a conveying roller section 9 and a guide roller section 10 connected to the sheet conveying line 8, the guide roller section 10 guiding and separating the discard plate with the upper paper joint from the sheet conveying line 8 to the conveying roller section 9.
Wherein, a distance limit value is preset in the control device 7, and when the lower roll paper allowance is larger than the distance limit value, the control device 7 controls the paper receiving unit 4 to receive paper; when the lower roll paper allowance is smaller than the distance limit value, the control device 7 controls the paper receiving unit 4 to receive paper, controls the plate cutting machine 1 to cut the plate with the joint, and controls the waste discharging unit 6 to discharge waste of the plate with the joint.
When the facing paper is switched in the gypsum board production process, the tail part of the last paper roll and the beginning part of the beginning of the next paper roll are required to be bonded together, an upper paper joint and a lower paper joint are generated at the bonding positions of the upper paper and the lower paper, when the plates with joints enter a dryer for drying, the bonded joints have the risk of drying and degumming, and the fallen paper tape is easy to wind a conveying roller way of the dryer, so that the plates in the dryer are blocked and even stop faults are caused. In order to avoid clogging of the dryer, therefore, the sheet material with the tabs is usually discarded before it enters the dryer, avoiding that the sheet material with the tabs enters the dryer.
However, in the production process of the gypsum board production line, the finished board is obtained by cutting the formed board produced in one production line for multiple times, and the board dried by the dryer is required to be cut into two boards again after drying and forming, and the finished board is obtained after trimming and trimming, that is, the board entering the gypsum board to be dried is finally correspondingly produced into two finished boards, so that the board with the joint is wasted by discharging the board with the joint before the board enters the dryer conventionally.
Considering that the gypsum board to be dried is twice as long as the gypsum board, the gypsum board is obtained by dividing the board with the length of one production line, if the joint is controlled to be close to the end part of the dried gypsum board and close to the board head as much as possible during paper connection, the local board with the joint can be selectively cut, and waste caused by more waste discharge is avoided.
According to long-term practice summary, after the upper and lower paper joints are over a certain distance from the end of the gypsum board, the gypsum board is basically not degummed after being received and dried in a dryer, and the blocking and shutdown faults of the dryer can be avoided. Therefore, the upper and lower paper joints are controlled to be away from the dry gypsum board by a certain distance, and the board with the joints does not need to be discarded.
Therefore, in the embodiment of the application, the joint position is controlled to be out of the range of the distance limit value length of the two ends of the dry gypsum board as far as possible, so that unnecessary waste caused by cutting and discharging can be avoided, and if the joint position cannot be controlled between the distance limit lines on the two sides, the joint is controlled to be in the position of the long board head which is subjected to drying as far as possible, and the board head position of the board close to one side of the board cutting machine 1 is regulated, and the board tail is arranged at the other end of the board.
For example, in the actual production process of the facing paper gypsum board, joints are generated by each roll of facing paper, the positions of the joints are not fixed, and under normal conditions, the positions of the joints are more than 0.5 m away from the positions of the board heads, so that the risk of blocking the drier can not occur when long boards enter the drier. Therefore, the limit value of the distance is defined to be 0.5 meter, the range of 0.5 meter at each of the two ends of the long plate is eliminated, the joint is controlled between the limit values of the distance at the two sides as much as possible, and unnecessary waste of plate waste can be avoided.
The length of a paper roll of the facing paper is very long, a plurality of long plates can be correspondingly produced, the long plates refer to gypsum plates which enter the dryer and are about twice the length of finished plates, namely, one long plate corresponds to two finished plates, joints can be necessarily generated when the length of the whole long plate is less than the length of the whole long plate after the plate cutter 1 cuts a plurality of plates, the positions of the joints on the long plates are controlled, and the waste discharge of part of joint plates can be avoided. Therefore, the length of the current paper roll after being cut by the plate cutter 1 is counted and updated every time, the joint position is judged and controlled according to the residual quantity, and the system is implemented as follows.
And in the length range of one paper roll, the surplus statistics module updates the surplus once every time the plate cutting machine cuts the plate. For convenience of description and statistical calculation, the relevant parameters are set as follows:
setting the whole length of the current roll paper to be S, setting the length of a long plate specification which enters a dryer and is dried to be L, setting the number of signals generated by a cutter encoder to be n and the remaining amount to be M in the range of the length of the current roll paper, and calculating and updating the remaining amount by a remaining amount statistics module according to M=S-n×L, wherein n is a positive integer, n=0, 1,2,3 and …, and representing the number of the whole long plates produced correspondingly to the length of one roll paper.
After the plate is cut by the plate cutting machine 1, when the updated residual quantity M value of the residual quantity statistics module 3 is smaller than the length L of a long plate, the control device 7 clears and resets the accumulated and counted pulse number;
the length detection unit 5 judges the paper receiving position of the paper receiving unit 4 and the joint waste discharge length according to the remainder length of the incomplete long board after the complete long board is correspondingly produced by the new paper roll;
the control device 7 regulates and controls the paper receiving unit 4 to implement paper receiving according to the determined paper receiving piece according to the detection result of the length detection unit 5, regulates and controls the plate cutting machine 1 to cut the plate so as to cut the plate with the upper and lower paper joints to discharge the waste from the waste discharging unit 6, and when the plate cutting machine 1 starts cutting a new roll of the plate corresponding to the upper paper, the control device 7 restarts counting the pulse number generated by the cutter encoder 2.
And calculating an updated residual quantity by using the M=S-n×L, and when the value of the residual quantity M is smaller than the length L of one long plate, the residual quantity is M ', wherein M' =S-n×L, n is the maximum positive integer produced by corresponding to the length of one paper roll, and the overlapping length of the upper paper joint and the lower paper joint is set to be delta M.
The position of the upper and lower paper joints is related to the allowance M ' and also related to the overlapping length delta M of the upper and lower paper, the position of the joint approximate area is judged according to the allowance M ', the overlapping length delta M of the upper and lower paper influences the joint position area and the length of the waste joint plate to be cut, and the overlapping length of the lower paper and the upper paper also influences the allowance M ' of a new paper roll so as to influence the position of the upper and lower paper joints on the plate.
According to the length of remainder, a new roll of paper is prejudged to be capable of correspondingly producing a plurality of complete boards, and the length of the head section and the tail end of the roll of paper is distributed, so that the boards are not cut to the greatest extent, and the waste of the face protection paper is reduced. Meanwhile, in order to ensure stable butt joint of the upper and lower paper joints, a certain bonding overlap length is required to be ensured. The following examples are provided to illustrate the manner in which the position of the joint is regulated.
For example, the distance limit value is 0.5 m, in the prior art, the specification of the produced dragon board gypsum board is 2400 x 1200 x 9.5mm, the board cutting machine 1 cuts the board into long boards with the length of 4.85 m so as to enter a dryer for drying, the joint is controlled to be within 3.85 m in the middle of the long boards as much as possible, the gypsum board can be ensured to be dried smoothly by the dryer, and the problem of waste discharge of the joint is solved. For the plates with joints and without waste discharge, the overlapping length of the upper paper and the lower paper is longer, for example, 1/2 of the allowance length, in order to ensure the joint to be bonded stably, the joints cannot be controlled in the middle safety area, the plates need to be discharged, and in order to reduce the waste of the facing paper, for the joint, the overlapping length of the upper paper and the lower paper is relatively smaller, for example, 1/3 of the allowance length.
Then preferably, according to the allowance length condition, the paper receiving conditions are:
1) The distance limit value is larger than M '>0, the overlapping length of the upper paper and the lower paper is controlled to be M' > DeltaM >1/3M 'by the paper receiving unit, and the cutting and discharging length of the plate cutting machine is controlled to be M' by the control device.
The length of the surplus is smaller and is positioned at the board head, and in the safety range that the tail part cannot be positioned in the middle of the board, a small part of the face guard paper at the tail part of the paper roll needs to be cut off, so that the length of the necessary waste board is M ', and the length of the joint which is positioned at the board head and needs to be cut off is set to be 1/3M' because the bonding length between a new paper roll and the tail part of the paper roll is smaller in order to reduce the waste of the face guard paper.
2) The distance limit value of delta M+ is greater than M '> the distance limit value, the overlapping length of the upper paper and the lower paper is controlled by the paper receiving unit to be greater than M' > delta M >1/3M ', and the cutting and discharging length of the plate cutting machine is controlled by the control device to be M'.
Although the length of the margin is larger than the distance limit value, the length of the margin exceeding the distance limit value is smaller, and when a new paper roll is adhered to the tail of the paper roll, in order to ensure firm adhesion of the joint, the joint overlapping area is overlapped with the distance limit area, and it is difficult to ensure that the plate with the joint can smoothly pass through the dryer, so that the plate is necessary to cut and discard the plate.
A flowchart for determining the paper receiving position, the paper receiving length, and the reject length from the remaining amount is given as in fig. 3.
For example, if the paper roll margin M 'exceeds 0.7M by 0.2M from the boundary line, the delta M is set to 0.35M in order to keep the joint firmly bonded without placing the waste joint, and the upper and lower paper joints are set to 1/3M' because the distance between the joint and the end of the board head is not longer than 0.5M, and the waste paper should be placed, so that the waste of the facing paper is reduced.
3) The L-distance limit value is larger than M '> DeltaM+ and the distance limit value is larger than M' > DeltaM+2M ', and the paper receiving unit controls the overlapping length of the upper paper receiving unit and the lower paper receiving unit to be larger than M' > DeltaM. The allowance length is long enough, the joint can be ensured to be far away from the plate head, and the plate can be ensured to smoothly pass through the dryer, so that the joint overlapping length is set to be 1/2M', cutting is not needed, waste is avoided, and the waste is avoided.
4) The L is larger than M '> L-distance limit value, the paper receiving unit controls the overlapping length of the upper paper receiving and the lower paper receiving to be larger than 1/2 distance limit value which is larger than DeltaM >0, and the control device controls the cutting-off and discharging length of the plate cutting machine to be M'.
And when the allowance length is longer and the tail part of the whole long plate is correspondingly close to the tail part of the whole long plate, the plate covered by the whole allowance length is required to be cut and discarded due to the fact that the head end length of the right side plate is smaller than that of the long plate, and in order to reduce the waste of the face guard paper, the bonding overlapping length of a new paper roll and the tail part of the paper roll is set to be 1/2 distance limit value.
In summary, the joint position should be controlled within the middle L-distance limit value > M '> DeltaM+ distance limit value region, so as to reduce the waste discharge, and secondly, when the joint position cannot be located within the L-distance limit value > M' > DeltaM+ distance limit value region, the joint position should be controlled on the board head position, the joint occupies only a small part of the area of the board tail, and the waste discharge length is only a short allowance length, so that the integrity of the following board is not affected. Whereas the joint occupies only a small part of the area of the tail of the board, the board is intact and is discarded from the large area leading from the joint to the end of the head. Therefore, the joint is prevented from being arranged in the position area of the tail of the long plate, the length of the waste plate is shortened, and the waste of the plate is reduced.
The length detection unit 5 at least comprises a ranging sensor, a mounting rack for mounting the ranging sensor, and the control device 7 regulates and controls the ranging sensor to start detection after the plate cutter 1 cuts the last whole long plate produced by a paper roll correspondingly, and a detection distance signal of the ranging sensor is transmitted to the control device in real time;
the control device 7 regulates and controls the paper receiving unit 4 to receive paper according to the residual quantity M 'and the corresponding matched paper receiving condition and the distance detection value of the distance measuring sensor, and enables the sum of the overlapping length delta M of the upper paper connector and the lower paper connector and the distance measured by the distance measuring sensor to be equal to the residual quantity M'. The length detecting unit 5 detects the conveying length according to the allowance situation and the corresponding paper receiving condition, so that the paper receiving unit 4 receives paper in time.
According to the above-mentioned joint waste discharging system based on the position of the joint on the board, the application further provides a waste discharging method of the joint waste discharging system based on the position of the joint on the board, as shown in fig. 4, comprising the following steps:
step 100: cutting the complete long plate and monitoring and updating the current paper roll residual quantity in real time;
step 200: judging the paper receiving position of the next paper roll and the length of the waste board according to the residual length of the current paper roll which is less than one complete board;
step 300: receiving paper according to the pre-determined paper receiving position;
step 400: cutting the plate with the upper and lower paper joints at the waste discharging part according to the pre-judged waste discharging length;
step 500: the contents of steps 100-400 are repeated.
And setting distance boundaries between the upper paper joint and the lower paper joint and the two ends of the plate head and the plate tail of the complete plate, and defining the bonding area of the upper paper and the lower paper and the length of the cutting waste discharge range according to the position of the tail of the current paper roll on the complete plate and the position distance relation between the tail of the paper roll and the distance boundaries. And the paper roll allowance is controlled at a position far away from the tail of the board as far as possible, so that waste discharge or partial waste discharge of boards with smaller areas is avoided to a large extent, and unnecessary waste is avoided.
In step 200, the paper receiving position and the paper receiving length are determined according to the remaining length of the current paper roll which is less than the full sheet, and the production cycle is longer due to the longer sheet production line, so that the determination principle is that the waste amount of cutting the sheet is reduced and the waste of the face guard paper is reduced, and the priority of reducing the waste amount of cutting the sheet is greater than that of reducing the waste of the face guard paper. That is, if the joint overlap length is larger, so that the cutting and waste discharge of the plate are avoided, the joint overlap length (waste facial tissues in the relative sense) can be selectively increased, and the waste of the plate is avoided.
The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application, the scope of which is defined by the claims. Various modifications and equivalent arrangements of this application will occur to those skilled in the art, and are intended to be within the spirit and scope of the application.
Claims (5)
1. Waste system is put to joint based on connect position on face, a serial communication port, include:
the plate cutting machine is used for cutting the plate to obtain a long plate with an adaptive length for entering the dryer, and can cut the waste plate with the upper paper joint;
the cutter encoder is arranged on a cutter of the plate cutting machine and rotates along with the cutter, and the encoder generates a pulse signal every time the cutter cuts a long plate;
the allowance counting module is used for calculating the remaining amount of the current paper roll according to the pulse signal book generated by the cutter encoder and the long plate specification;
a paper receiving unit for automatically bonding a new paper roll with the current paper roll according to the residual quantity of the current paper roll;
the length detection unit is used for determining the waste discharge length of the joint, and the waste discharge plate at least comprises an area where the upper paper joint and the lower paper joint are positioned;
the waste discharging unit is arranged at the downstream of the plate cutting machine and is used for discharging waste plates with upper and lower paper joints, which are generated by cutting of the plate cutting machine;
the control device is respectively connected with the control device, controls the paper receiving piece of the paper receiving unit to receive paper according to the surplus and controls the plate cutting machine to cut plates according to the surplus;
the control device is used for controlling the paper receiving unit to receive paper when the lower roll paper allowance is larger than the distance limit value, controlling the paper receiving unit to receive paper when the lower roll paper allowance is smaller than the distance limit value, controlling the plate cutting machine to cut plates with joints, and controlling the waste discharging unit to discharge waste of the plates with joints;
in the length range of a paper roll, the surplus statistics module updates the surplus once every time the plate cutting machine cuts a plate;
when the whole length of the current roll paper is fixed as S, the length of a long plate specification which enters a dryer and is subjected to drying is L, the number of signals generated by the cutter encoder is n, the residual quantity is set as M, and a residual quantity statistics module calculates and updates the residual quantity according to M=S-n x L, wherein n is a positive integer, n=0, 1,2,3 and …, and the number of the whole long plates which are correspondingly produced by the length of one roll paper is represented;
after the plate cutting machine cuts the plate, when the residual quantity M value updated by the residual quantity statistics module is smaller than a long plate length L, the control device clears and resets the accumulated and counted pulse number;
the length detection unit judges the paper receiving position of the paper receiving unit and the joint waste discharge length according to the remainder length of the new paper roll, which is less than the complete long plate after the complete long plate is produced correspondingly;
the control device regulates and controls the paper receiving unit to implement paper receiving according to the judged paper receiving piece according to the judging result of the length detection unit, regulates and controls the plate cutting machine to cut the plate so as to cut the plate with the upper and lower paper joints so that the waste discharging unit can discharge waste, and when the plate cutting machine begins to cut a new plate corresponding to a roll of paper, the control device restarts counting the pulse number generated by the cutter encoder;
when the remaining amount M is smaller than the length L of one long plate, the value is set as M ′ ，
M is then ′ S-n x L, and wherein n is the maximum positive integer produced for a roll length;
if the overlapping length of the upper and lower paper joints is Δm, the paper joining conditions are as follows:
distance limit value>M ′ >0, the paper receiving unit controls the overlapping length of the upper paper receiving unit and the lower paper receiving unit to have M ′ >ΔM>1/3M ′ The control device controls the cutting and discharging length of the plate cutter to be M ′ ；
ΔM+ distance limit value>M ′ >The paper receiving unit controls the overlapping length of the upper paper receiving unit and the lower paper receiving unit to have M ′ >ΔM>1/3M ′ The control device controls the cutting and discharging length of the plate cutter to be M ′ ；
L-distance limit value>M ′ >The delta M+ distance limit value controls the overlapping length of the upper paper and the lower paper to be M ′ >ΔM>1/2M ′ ；
L>M ′ >The value of the L-distance threshold is set,the paper receiving unit controls the overlapping length of the upper paper receiving unit and the lower paper receiving unit to be 1/2 distance limit value>ΔM>0, the control device controls the cutting and discharging length of the plate cutter to be M ′ 。
2. The splice waste disposal system of claim 1, wherein said length detection unit is disposed downstream of said splicing unit and said length detection unit is disposed upstream of said sheet cutter, said sheet cutter and splicing unit being in control association with said length detection unit, respectively.
3. A splice disposal system based on the position of a splice on a panel as defined in claim 2, wherein said disposal unit is disposed on the side of the panel conveyor line downstream of said panel cutter, said disposal unit including a conveyor roller section and a guide roller section attached to the panel conveyor line, said guide roller section guiding and separating the waste panel with the upper splice from the panel conveyor line to the conveyor roller.
4. The joint waste discharging system based on the position of a joint on a board surface according to claim 1, wherein the length detection unit comprises a ranging sensor, the control device regulates and controls the ranging sensor to start detection after the board cutting machine cuts the last whole long board produced by a paper roll, and a detection distance signal of the ranging sensor is transmitted to the control device in real time;
the control device regulates and controls the paper receiving unit to receive paper according to the residual quantity and the corresponding matching paper receiving condition and the distance detection value of the distance measuring sensor, and enables the sum of the overlapping length delta M of the upper paper connector and the lower paper connector and the distance measured by the distance measuring sensor to be equal to the residual quantity M ′ 。
5. A method for discharging waste applicable to the joint discharging system based on the position of the joint on the panel as claimed in any one of claims 1 to 4, comprising the steps of:
step 100: cutting the complete long plate and monitoring and updating the current paper roll residual quantity in real time;
step 200: judging the paper receiving position and the paper receiving length of the next paper roll according to the residual length of the current paper roll which is less than one complete plate, judging the paper receiving position and the paper receiving length according to the residual length of the current paper roll which is less than one complete plate, wherein the judging principle is that the cutting and discharging amount of the plate is reduced, the waste of the face guard paper is reduced, the priority of reducing the cutting and discharging amount of the plate is greater than that of reducing the waste of the face guard paper, the distance boundary lines between the upper paper joint and the lower paper joint and the two end parts are arranged at the plate head and the plate tail of the complete plate, and the bonding area of the upper paper and the lower paper and the length of the cutting and discharging range are defined according to the position of the tail of the current paper roll on the complete plate and the position distance relation between the tail of the paper roll and the distance boundary lines;
step 300: receiving paper according to the pre-determined paper receiving position;
step 400: cutting the plate with the upper and lower paper joints at the waste discharging part according to the pre-judged waste discharging length;
step 500: the contents of steps 100-400 are repeated.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111300629A (en) * | 2020-02-12 | 2020-06-19 | 镇江北新建材有限公司 | Full-automatic control system that takes out of gypsum board mask paper joint panel |
| CN111496998A (en) * | 2019-01-30 | 2020-08-07 | 北新建材（嘉兴）有限公司 | Paper joint waste discharge-free system and paper joint waste discharge-free method |
| CN113146831A (en) * | 2021-04-25 | 2021-07-23 | 广安北新建材有限公司 | Automatic waste discharge gypsum board production system and control method thereof |
| CN215150289U (en) * | 2021-04-25 | 2021-12-14 | 广安北新建材有限公司 | Automatic put useless gypsum board production system |
| CN114179211A (en) * | 2021-12-09 | 2022-03-15 | 太仓北新建材有限公司 | Paper feeding device with corrugated ironing function |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6688791B2 (en) * | 2001-06-08 | 2004-02-10 | Seiko Epson Corporation | Roll paper printing system, method for managing remaining amount of roll paper, recording medium, roll paper with memory |
-
2022
- 2022-09-01 CN CN202211067323.3A patent/CN115416147B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111496998A (en) * | 2019-01-30 | 2020-08-07 | 北新建材（嘉兴）有限公司 | Paper joint waste discharge-free system and paper joint waste discharge-free method |
| CN111300629A (en) * | 2020-02-12 | 2020-06-19 | 镇江北新建材有限公司 | Full-automatic control system that takes out of gypsum board mask paper joint panel |
| CN113146831A (en) * | 2021-04-25 | 2021-07-23 | 广安北新建材有限公司 | Automatic waste discharge gypsum board production system and control method thereof |
| CN215150289U (en) * | 2021-04-25 | 2021-12-14 | 广安北新建材有限公司 | Automatic put useless gypsum board production system |
| CN114179211A (en) * | 2021-12-09 | 2022-03-15 | 太仓北新建材有限公司 | Paper feeding device with corrugated ironing function |
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