Forward and reverse stacking paper turning machine and paper turning method thereofTechnical Field
The utility model belongs to the technical field of overlapping stacking of objects, and particularly relates to a forward and reverse stacking paper turning machine and a paper turning method thereof.
Background
In the process of forming, the paper is easy to be deformed and warped due to the shrinkage of glue, or other reasons, so that the paper is required to be stacked in the same direction and stacked in a small way, and then the paper is placed in a positive and negative stacking way, and the warping of the edges of the paper is avoided by utilizing the acting force of the paper and the paper is flattened, so that the paper is ensured to be flat.
The forward and reverse stacking of paper is realized in two ways:
1. and (5) manually. In this way, 3-4 workers are required to mutually cooperate, a certain amount of paper is stacked one by one and placed one by one through manual paper collection, the problems of time and labor waste and low efficiency exist, and the processing cost is greatly improved.
2. Mechanically. For example, chinese patent publication No. CN205838100U discloses an automatic paper turning device of a full-automatic paper feeder. According to the technical scheme, the lifting oil cylinder and the overturning part are arranged, so that the problem that labor and time are consumed in manually overturning the paper board is avoided, and the labor intensity is reduced. However, the technical scheme turns all the paper, and the forward and reverse stacking is not realized, so that the defect of warping of the edge of the paper cannot be eliminated.
Disclosure of Invention
The present utility model is directed to overcoming the above-mentioned drawbacks and shortcomings and providing a front-back stacking type paper turner.
Another object of the present utility model is to provide a method for reversing paper in a positive and negative stack.
The technical scheme adopted by the utility model for achieving the purpose is as follows.
A paper turning machine capable of being stacked positively and negatively comprises a conveying belt mechanism, a lifting mechanism, a turning mechanism and a stacking mechanism; the lifting mechanism is provided with a lifting frame which moves up and down; the stacking mechanism is provided with a stacking frame which moves up and down; the output end of the conveying belt mechanism is connected with the input port of the lifting mechanism; the input end of the turnover mechanism is connected with the output port of the lifting mechanism, and the turnover mechanism is positioned right above the stacking mechanism.
The conveying belt mechanism comprises an active conveying roller, a conveying belt, a driven wheel and a supporting plate; the transmission belts are parallel to each other and are arranged at intervals; one end of the transmission belt is connected with the active transmission roller, and the other end of the transmission belt is connected with the driven wheel; the backup pad wears to locate the conveyer belt, and the upper and lower surface of backup pad all sets up with the conveyer belt clearance.
The lifting mechanism comprises a lifting frame, a lifting machine, a lifting chain, a lifting start photoelectric switch, a lifting first end photoelectric switch and a lifting second end photoelectric switch; the hoisting machine is connected with a hoisting chain; the lifting chain is connected with the lifting frame; the lifting frame is hinged with the lifting chain; the lifting starting photoelectric switch is arranged at the bottom of the lifting mechanism; the lifting first tail photoelectric switch is arranged at the middle upper part of the lifting mechanism; the lifting second ending photoelectric switch is arranged at the upper part of the lifting mechanism.
The lifting frame comprises a lifting transmission motor, a lifting roller, a lifting first gear, a lifting second gear and a lifting cross rod; the lifting transmission motor is fixedly arranged on the lifting cross rod; the lifting rollers are longitudinally arranged at equal intervals, and two ends of each lifting roller are rotatably arranged on the lifting cross rod; the lifting first gear is fixedly arranged at the end part of the lifting roller shaft; the lifting second gear is clamped between the two lifting first gears, and the lifting second gears are meshed with the adjacent lifting first gears; the output end of the lifting transmission motor is provided with a gear meshed with the lifting first gear.
The lifting cross rod is fixedly connected with a lifting vertical rod; the upper end of the lifting vertical rod is fixedly connected with a lifting vertical rod, and the lower end of the lifting vertical rod is fixedly arranged on the lifting cross rod; the lifting longitudinal rods are arranged on the left side and the right side of the lifting frame, two alignment transverse rods are arranged on the lifting longitudinal rods, and the alignment transverse rods are fixedly provided with pairs Ji Qigang; an alignment plate is fixedly arranged at the output end of the alignment cylinder.
The turnover mechanism comprises a turnover cylinder, a small driving plate shaft, a driving plate, a turnover shaft seat, a turnover box body, a paper placing cylinder, a turnover plate and a hinge; one end of the small shaft of the driving plate is rotationally connected with the output end of the overturning cylinder, and the other end of the small shaft of the driving plate is connected with the driving plate; the driving plate is fixedly connected with the turnover box body through a turnover shaft; the turnover shaft is rotatably arranged on the turnover shaft seat; the paper placing cylinder is hinged to the left side and the right side of the turnover box body, and the output end of the paper placing cylinder is hinged to the inner side of the turnover plate; the outer side of the rotating plate is rotatably arranged on the overturning box body through a hinge.
The stacking mechanism comprises a stacking frame, a stacking first photoelectric switch, a stacking second photoelectric switch, a stacking third photoelectric switch, a stacking motor and a stacking chain; the stacking rack is arranged right below the overturning box body; the stacking first photoelectric switch is arranged at the upper part of the stacking mechanism; the stacking second photoelectric switch is arranged in the middle of the stacking mechanism; the stacking third photoelectric switch is arranged at the bottom of the stacking mechanism; one end of the stacking chain is connected with the output end of the stacking motor, and the other end of the stacking chain is connected with the stacking frame.
The stacking frame comprises a stacking transmission motor, a stacking roller, a stacking first gear, a stacking second gear and a stacking cross bar; the stacking transmission motor is fixedly arranged on the stacking cross rod; the stacking rollers are longitudinally arranged at equal intervals, and two ends of each stacking roller are rotatably arranged on the stacking cross rod; the stacking first gear is fixedly arranged at the end part of the stacking roller; the stacking second gears are clamped between the two stacking first gears, and the stacking second gears are meshed with the adjacent stacking first gears; the output end of the stacking transmission motor is provided with a gear meshed with the stacking first gear.
A positive and negative stacking paper turning method comprises the following steps:
step 1, single paper receiving of a lifting mechanism: the conveying belt mechanism conveys the paper stack to the lifting frame;
step 2, the lifting mechanism transports and beats the paper for a plurality of times: the lifting frame moves upwards, paper is beaten while the lifting frame moves upwards, the alignment cylinder acts, and the alignment plate moves forwards and backwards and beaten the paper stack; when the number of times of the first tail photoelectric switch subjected to shielding is singular, stopping ascending by the lifting frame;
step 3, single paper receiving of the stacking mechanism: the lifting and conveying motor acts to drive the lifting roller to rotate in the same direction, and the paper stack on the lifting frame is conveyed to the stacking frame;
step 4, the lifting mechanism connects paper for even times: the lifting frame descends, and when the lifting start photoelectric switch encounters shielding, the lifting frame stops acting; the conveying belt mechanism conveys the paper stack into the lifting frame;
step 5, the lifting mechanism transports and beats the paper for even times: the lifting frame shoots paper while ascending, when the shielding times of the lifting first ending photoelectric switch are even, the lifting frame continues ascending, and then the lifting frame stops ascending after the shielding of the lifting second ending photoelectric switch; at this time, the top surface of the lifting frame is basically level with the top surface of the overturning box body;
step 6, the turnover mechanism receives paper: the lifting and conveying motor acts to drive the lifting roller to rotate in the same direction, after the paper stack on the lifting frame is conveyed into the overturning box body, the lifting mechanism instantaneously descends until the photoelectric switch stops, and the paper receiving movement is repeated; then, step 1 and step 7 are performed simultaneously;
step 7, turning over the turning mechanism: the turning cylinder acts, and the driving plate is driven to rotate around the turning shaft through the driving plate small shaft, so that the turning box body is driven to rotate 180 degrees;
step 8, the stacking mechanism connects paper for even times: the stacking frame ascends, and after the first photoelectric switch is blocked, the stacking frame stops acting; at this time, the stacking frame is positioned right below the overturning box body and is arranged in a clearance with the overturning box body; the paper placing cylinder acts, the rotating plate is opened, and papers in the turnover mechanism are piled on the stacking frame; then the paper discharge cylinder is reset in a delayed manner, and the rotating plate is driven to reset;
step 9, resetting the stacking mechanism and the turnover mechanism: the stacking frame acts, and when the second photoelectric switch is blocked, the stacking frame stops acting; then the overturning cylinder acts, and the driving plate is driven to rotate around the overturning shaft through the driving plate small shaft, so that the overturning box body is driven to rotate for 180 DEG for resetting; if the stacking of the third photoelectric switch is not shielded, performing the step 3; if the stacked third opto-electronic switch is blocked, proceeding to step 10;
step 10, outputting a paper stack by the stacking mechanism: when the stacking mechanism is full of the paper stack, the third photoelectric switch is blocked and stacked, the stacking transmission motor is started, the stacking roller is driven to start, and the paper stack is output.
The lifting mechanism of the paper turning machine is always in the process of moving up and down except for necessary paper receiving and paper conveying. The simple moving speed of the lifting mechanism is higher, and the reset paper receiving of the lifting mechanism and the paper turning of the turnover mechanism are synchronously carried out, that is, the paper turning is not influenced during paper conveying, and the paper conveying is not influenced during paper turning, so that the working efficiency of the paper turning machine is greatly improved. In addition, the turnover mechanism adopts a fixed paper turnover mode, and the turnover mechanism in the motion of a guide rail sliding column is not adopted, so that the turnover of the paper board is realized, the structure of the fixed turnover mechanism is quite simple, the manufacturing cost is greatly reduced, the failure rate is greatly reduced, the working efficiency is improved by about 1.5 times, and the speed can reach about 15000 pieces/hour. The paper turning machine adopts a structure that a single paper conveying pulley is used for conveying paper, and a fixed paper turning mechanism is used for turning the paper, so that the paper turning machine is simple and easy to operate.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the structure of the conveyor belt mechanism and the lifting mechanism;
FIG. 3 is a schematic view of the structure of the flipping mechanism and stacking mechanism;
FIG. 4 is a schematic view of the structure of the roll-over box body turned 90;
FIG. 5 is a schematic view of the structure of the roll-over case turned 180;
FIG. 6 is a schematic diagram of a single transport direct stack of an elevator mechanism;
FIG. 7 is a schematic view of the structure of an even number of transports of the lifting mechanism;
FIG. 8 is a schematic diagram of the structure of the turning mechanism;
FIG. 9 is a schematic view of a structure of a stacking mechanism for even number of paper receiving;
FIG. 10 is a schematic diagram of the return of the flipping mechanism and stacking mechanism;
FIG. 11 is a schematic view of a structure of a lifting mechanism for receiving paper;
FIG. 12 is a schematic view of the structure of a single transport of the lifting mechanism;
FIG. 13 is a schematic view of a structure of a stacking mechanism for single-pass paper receiving;
fig. 14 is a schematic view of a structure in which the stacking mechanism outputs a sheet bundle;
FIG. 15 is a flow chart of the present utility model;
in the figure: a conveyor belt mechanism 100, an active conveyor roller 101, a conveyor belt 102, a driven wheel 103, a support plate 104,
Lifting mechanism 200, lifting frame 201, lifting transport motor 201a, lifting roller 201b, lifting first gear 201c, lifting second gear 201d, lifting cross bar 201e, lifting vertical bar 201f, lifting vertical bar 201g, alignment cross bar 201h, alignment plate Ji Qigang i, alignment plate 201j, lifting machine 202, lifting chain 203, lifting start photo switch 204, lifting first end photo switch 205, lifting second end photo switch 206,
A turnover mechanism 300, a turnover cylinder 301, a small driving plate shaft 302, a driving plate 303, a turnover shaft 304, a turnover shaft seat 305, a turnover box 306, a paper discharge cylinder 307, a turnover plate 308, a hinge 309,
The stacking mechanism 400, the stacking rack 401, the stacking transfer motor 402, the stacking roller 403, the stacking first gear 404, the stacking second gear 405, the stacking cross bar 406, the stacking first photoelectric switch 407, the stacking second photoelectric switch 408, the stacking third photoelectric switch 409, and the stacking motor 410.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings.
A paper turning machine capable of being stacked positively and negatively comprises a conveying belt mechanism 100, a lifting mechanism 200, a turning mechanism 300 and a stacking mechanism 400. The lifting mechanism 200 is provided with a lifting frame 201 which moves up and down; the stacking mechanism 400 is provided with a stacking rack 401 which moves up and down; the output end of the conveying belt mechanism 100 is connected with the input port of the lifting mechanism 200; the input end of the turnover mechanism 300 is connected to the output port of the lifting mechanism 200, and the turnover mechanism 300 is located right above the stacking mechanism 400.
The conveyor belt mechanism 100 comprises an active conveyor roller 101, a conveyor belt 102, a driven wheel 103 and a support plate 104; the number of the transmission belts 102 is several, and the transmission belts are parallel to each other and are arranged at intervals; one end of the conveying belt 102 is connected with the driving conveying roller 101, and the other end is connected with the driven wheel 103; the supporting plate 104 is disposed through the conveying belt 102, and the upper and lower surfaces of the supporting plate 104 are disposed in a gap with the conveying belt 102. The supporting plate 104 is fixedly installed on the frame of the conveyor belt mechanism 100, and the conveyor belt 102 and the driven wheel 103 are both rotatably installed on the frame of the conveyor belt mechanism 100.
The active conveying roller 101 is driven by a motor to rotate, so that the conveying belt 102 is driven to convey the paper stack. The support plate 104 functions to support the conveyor belt 102.
The lifting mechanism 200 comprises a lifting frame 201, a lifting machine 202, a lifting chain 203, a lifting start photoelectric switch 204, a lifting first end photoelectric switch 205 and a lifting second end photoelectric switch 206; the elevator 202 is connected with an elevator chain 203; the lifting frame 201 is hinged with the lifting chain 203; the lifting start photoelectric switch 204 is installed at the bottom of the lifting mechanism 200; the lifting first ending photoelectric switch 205 is installed at the middle upper part of the lifting mechanism 200; the lift second end photoelectric switch 206 is mounted on the upper portion of the lift mechanism 200.
The lifting frame 201 includes a lifting transmission motor 201a, a lifting roller 201b, a lifting first gear 201c, a lifting second gear 201d, and a lifting cross bar 201e; the lifting transmission motor 201a is fixedly arranged on the lifting cross bar 201e; the lifting rollers 201b are longitudinally arranged at equal intervals, and two ends of the lifting rollers 201b are rotatably arranged on the lifting cross bars 201e; the lifting first gear 201c is fixedly mounted to the end of the lifting roller 201 b; the lifting second gear 201d is sandwiched between the two lifting first gears 201c, and the lifting second gear 201d is meshed with the adjacent lifting first gears 201 c; the output end of the lifting transmission motor 201a is provided with a gear meshed with the lifting first gear 201 c. The lifting transmission motor 201a acts to drive the lifting first gears 201c to rotate, and as the lifting second gears 201d are arranged between the adjacent lifting first gears 201c, all the lifting first gears 201c rotate in the same direction, so that all the lifting rollers 201b are guaranteed to act in the same direction.
Further, the lifting cross bar 201e is fixedly connected with a lifting vertical bar 201f; the lifting vertical rod 201f is vertically arranged, the upper end of the lifting vertical rod 201f is fixedly provided with a lifting vertical rod 201g, and the lower end of the lifting vertical rod is fixedly provided with a lifting horizontal rod 201e; the lifting longitudinal rods 201g are arranged on the left side and the right side of the lifting frame 201, the lifting longitudinal rods 201g are provided with two alignment transverse rods 201h, and the alignment transverse rods 201h are fixedly provided with pairs Ji Qigang i; an alignment plate 201j is fixedly arranged at the output end of the pair Ji Qigang i. The lifting longitudinal bar 201g is used as a guide rail, and the distance between the two alignment transverse bars 201h is adjusted by adjusting the position of the alignment transverse bars 201h on the lifting longitudinal bar 201g so as to adapt to paper sheets with different sizes. When the stack is positioned on the lift roller 201b, the pair Ji Qigang i is actuated to displace the alignment plate 201j back and forth, thereby tapping the stack and aligning the stack.
The turnover mechanism 300 comprises a turnover cylinder 301, a small driving plate shaft 302, a driving plate 303, a turnover shaft 304, a turnover shaft seat 305, a turnover box 306, a paper discharge cylinder 307, a rotating plate 308 and a hinge 309; one end of the driving plate small shaft 302 is rotatably connected with the output end of the overturning cylinder 301, and the other end of the driving plate small shaft is connected with the driving plate 303; the driving plate 303 is fixedly connected with the turnover box 306 through a turnover shaft 304; the overturning shaft 304 is rotatably installed on the overturning shaft seat 305; the paper placing cylinder 307 is hinged to the left side and the right side of the turnover box 306, and the output end of the paper placing cylinder 307 is hinged to the inner side of the turnover plate 308; the outer side of the turning plate 308 is rotatably mounted on the turning box 306 through a hinge 309.
The overturning cylinder 301 is hinged to the frame. The overturning shaft seat 305 is fixedly installed on the frame.
The turning cylinder 301 acts, and the driving plate 303 is driven to rotate around the turning shaft 304 through the driving plate small shaft 302, so that the turning box 306 is driven to rotate. The roll-over shaft seat 305 functions to support the roll-over box 306. The paper discharge cylinder 307 acts to drive the rotating plate 308 to rotate, so that the rotating plate 308 is opened and closed.
The stacking mechanism 400 includes a stacking rack 401, a stacking first photoelectric switch 407, a stacking second photoelectric switch 408, a stacking third photoelectric switch 409, a stacking motor 410, and a stacking chain; the stacking frame 401 is arranged right below the overturning box body 306; the first photoelectric switch 407 is mounted on the upper part of the stacking mechanism 400; the second photoelectric switch 408 is installed in the middle of the stacking mechanism 400; the third photoelectric switch 409 is mounted at the bottom of the stacking mechanism 400; one end of the stacking chain is connected with the output end of the stacking motor 410, and the other end of the stacking chain is connected with the stacking frame 401.
The stacking motor 410 operates to drive the stacking rack 401 to move up and down through the stacking chain.
Preferably, the stacking rack 401 includes a stacking transport motor 402, a stacking roller 403, a stacking first gear 404, a stacking second gear 405, and a stacking cross bar 406; the stacking transport motor 402 is fixedly mounted to a stacking rail 406; the stacking rollers 403 are longitudinally arranged at equal intervals, and two ends of the stacking rollers 403 are rotatably arranged on the stacking cross bars 406; the stacking first gear 404 is fixedly installed at the end of the stacking roller 403; the second gear 405 is sandwiched between the two first gears 404, and the second gear 405 is meshed with the adjacent first gears 404; the output of the stack transfer motor 402 is provided with a gear that meshes with the stack first gear 404. The stacking and conveying motor 402 acts to drive the stacking first gears 404 to rotate, and as the stacking second gears 405 are arranged between the adjacent stacking first gears 404, all the stacking first gears 404 rotate in the same direction, so that all the stacking rollers 403 are guaranteed to act in the same direction.
A positive and negative stacking paper turning method comprises the following steps:
step 1, the lifting mechanism 200 receives paper for a plurality of times: the conveyor belt mechanism 100 conveys the stack of sheets to the lifting frame 201;
step 2, the lifting mechanism 200 transports and beats up paper for a single time: the lifting frame 201 ascends, at this time, one side of the lifting frame 201 ascends and beats paper, the alignment plate 201j moves forwards and backwards and beats paper piles for Ji Qigang i action; when the number of times of shielding encountered by lifting the first ending photoelectric switch 205 is singular, the lifting frame 201 stops ascending; at this time, if the stacking frame 401 has no paper stack, the top surface of the lifting frame 201 should be about 1.1 times higher than the top surface of the stacking frame 401 to facilitate the paper stack to roll into the stacking frame 401; if the stacker tray 401 has a stack, the top surface height of the lift frame 201 should be about 1.1 times higher than the stack top surface height on the stacker tray 401 by one stack height.
Step 3, the stacking mechanism 400 receives paper for a single time: the lifting and conveying motor 201a acts to drive the lifting roller 201b to rotate in the same direction, and the paper stack on the lifting frame 201 is conveyed to the stacking frame 401;
step 4, the lifting mechanism 200 connects paper for even times: the lifting frame 201 descends, and when the lifting start photoelectric switch 204 encounters shielding, the lifting frame 201 stops acting; the conveyor belt mechanism 100 conveys the stack of sheets into the lifting frame 201;
step 5, the lifting mechanism 200 transports and beats up the paper for even number of times: the lifting frame 201 shoots the paper while lifting up, when the number of times of shielding by the lifting first ending photoelectric switch 205 is even, the lifting frame 201 continues to lift, and then after shielding by the lifting second ending photoelectric switch 206, the lifting frame 201 stops lifting; at this time, the height of the top surface of the lifting frame 201 is substantially flush with the height of the top surface of the roll-over box 306;
step 6, the tipping mechanism 300 receives paper: the lifting and conveying motor 201a acts to drive the lifting roller 201b to rotate in the same direction, and after the paper stack on the lifting frame 201 is conveyed into the overturning box 306, the lifting mechanism 200 descends instantly until the photoelectric switch 204 is stopped; then, step 1 and step 7 are performed simultaneously.
Step 7, the overturning mechanism 300 overturns: the turning cylinder 301 acts, and the driving plate 303 is driven to rotate around the turning shaft 304 through the driving plate small shaft 302, so that the turning box 306 is driven to rotate 180 degrees;
step 8, stacking mechanism 400 takes paper an even number of times: the stacking frame 401 moves upwards, and after the first photoelectric switch 407 is blocked, the stacking frame 401 stops acting; at this time, the stack 401 is located right below the roll-over box 306 and is disposed in a gap with the roll-over box 306; the paper discharge cylinder 307 acts, the rotating plate 308 is opened, and the paper in the turnover mechanism 300 is piled on the piling frame 401; then the paper discharge cylinder 307 is reset in a delayed manner, and the rotating plate 308 is driven to reset;
step 9. Reset of stacking mechanism 400 and flipping mechanism 300: the stacking rack 401 acts, and when the second photoelectric switch 408 is blocked, the stacking rack 401 stops acting; then the overturning cylinder 301 acts, and the driving plate 303 is driven to rotate around the overturning shaft 304 through the driving plate small shaft 302, so that the overturning box 306 is driven to rotate 180 degrees for resetting; if the third photoelectric switch 409 is not blocked, step 3 is performed; if the stacked third electro-optical switch 409 is blocked, then step 10 is performed;
step 10, stacking mechanism 400 outputs a stack of sheets: when the stacking mechanism 400 is full of the paper stack, the third photoelectric switch 409 is blocked, the stacking and conveying motor 402 is started, the stacking roller 403 is driven to be started, and the paper stack is output.
The lifting mechanism 200 of the paper turner is always in the process of moving up and down except for necessary paper receiving and paper feeding. The simple moving speed of the lifting mechanism 200 is high, and the resetting paper receiving of the lifting mechanism 200 and the paper turning of the turning mechanism 300 are synchronously performed, so that the working efficiency of the paper turning machine is greatly improved. In addition, the turnover mechanism 300 adopts a fixed paper turnover mode, and the turnover of the paperboard is realized without a guide rail slide column and a turnover mechanism in motion, so that the structure of the fixed turnover mechanism is quite simple, the manufacturing cost is greatly reduced, the failure rate is greatly reduced, the working efficiency is improved by about 1.5 times, and the speed can reach about 15000 pieces/hour. The paper turning machine adopts an independent paper transporting pulley, and has simple and easy structure.
The utility model has been described in terms of embodiments, and the device can be modified and improved without departing from the principles of the utility model. It should be noted that all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of the present utility model.