Feeding device of corrugated carton printing machine

Abstract

The invention belongs to the technical field of corrugated carton production, and particularly relates to a feeding device of a corrugated carton printing machine, which comprises a rack, a conveying belt is arranged on the rack, and a corrugated carton can enter the printing machine for printing through the conveying belt. The rack is provided with an anti-extrusion type intermittent discharging mechanism used for controlling the feeding frequency of corrugated cartons. By means of the extrusion-preventing intermittent discharging mechanism, a plurality of cartons can be placed at the same position in a centralized mode, the cartons intermittently fall onto the conveying belt at a fixed frequency according to actual needs and enter the printing machine one by one for printing, subsequent collection and management of the printed cartons are facilitated, and in addition, the production efficiency is improved. Due to the fact that the multiple cartons can be temporarily stored to the same position rapidly, the process that when workers place the cartons on the conveying belt one by one, the workers need to wait for printing of the previous carton is omitted, the labor intensity of the workers is reduced, and printing errors caused by too fast or too slow placement are avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of corrugated paper box production, in particular to a feeding device of a corrugated paper box printing machine. Background Art

[0002] Corrugated cardboard is the most widely used packaging product, and its usage has always been the highest among all packaging products. During the production process of corrugated cardboard, patterns need to be printed on the surface of the corrugated cardboard by a printing press. The feeding device can smoothly and accurately feed the corrugated cardboard to be printed into the printing press to ensure that the printing process can proceed smoothly.

[0003] The patent with announcement number CN220811193U discloses a feeding device for a carton printing machine, including: a transmission unit, the transmission unit is connected inside the carton printing machine, a lint cleaning structure is arranged above the transmission unit, and a leveling structure is arranged on both sides of the transmission unit. The lint cleaning structure includes a fixed frame, the fixed frame is arranged on both sides of the transmission unit, and three groups of air pumps are fixedly arranged on the upper end of the fixed frame. One end of the air pump is connected to the inside of a collection box through a connecting pipe, and the collection box is assembled on the upper end of the air pump. The other end of the air pump is fixedly connected to a transmission pipe, and the end of the transmission pipe away from the air pump is fixedly connected to a lint extraction head. This patent realizes that when the feeding device of the carton printing machine prints the carton, it can avoid the lint attached to the outside of the carton from affecting the printing effect, thereby improving the practicality and printing effect of the device.

[0004] However, the above technical solution still has the following deficiencies in practical application: By placing cartons on a conveyor belt, the cartons enter the printing machine along the conveyor belt for printing. However, when multiple cartons need to be printed in sequence, in order to ensure that the cartons can be printed in an orderly manner through the printing machine and facilitate the subsequent collection and management of the printed cartons, it is necessary to maintain a certain distance between the cartons and enter the printing machine one by one at a fixed frequency for printing. In the above technical solution, if all cartons are placed on the conveyor belt at one time, it is difficult to effectively control the distance between the cartons, which will affect the normal working frequency or rhythm of the printing machine. In addition, in some cases, the printing speed of the printing machine may be slow, and when workers place cartons one by one on the conveyor belt at a fixed frequency, they need to wait for the previous carton to be printed. This will not only increase the labor intensity of the workers, but may also result in too fast or too slow placement, resulting in printing errors.

[0005] To this end, the present invention provides a feeding device for a corrugated paper box printing machine. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the present invention proposes a feeding device for a corrugated box printing machine.

[0007] The technical solution adopted by the present invention to solve the technical problem is: a feeding device of a corrugated paper box printing machine, comprising a frame, a conveyor belt is arranged on the frame, and the corrugated paper box can enter the printing machine through the conveyor belt for printing, and an anti-squeezing intermittent unloading mechanism for controlling the feeding frequency of the corrugated paper box is arranged on the frame; The anti-extrusion intermittent feeding mechanism includes two pillars fixedly connected to the left side of the upper end of the frame, one side of the upper end of the pillar is fixedly connected to a top plate, one side of the top plate is slidably connected to two limit plates 1, and the other side is slidably connected to two limit plates 2, one side of the limit plate 2 is slidably connected to a slide plate, and one side of the limit plate 1 and the limit plate 2 are both slidably connected to a plurality of elastic blocks, and the spacing between adjacent elastic blocks is the same, the middle part of the upper end of the frame is fixedly connected to a frame body, one side of the frame body is slidably connected to a lifting plate, the middle of the lifting plate is slidably connected to two sliding rods 2, one end of the sliding rod 2 is fixedly connected to an adjusting plate, and a plurality of correction rods are slidably connected to the adjusting plate.

[0008] Preferably, an electric push rod 1 is fixedly connected to the middle of the upper end surface of the top plate, and a connecting block is fixedly connected to the piston end of the electric push rod 1. A plurality of connecting rods 1 are rotatably provided on the connecting block, and the upper ends of the limit plate 1 and the limit plate 2 are both rotatably connected to the end of the connecting rod 1.

[0009] Preferably, one side of the elastic block is fixedly connected with a spring, the other end of the springs on both sides are fixedly connected to one side of the limit plate one and the limit plate two, the lower ends of the limit plate one and the limit plate two on one side are fixedly connected with a sliding rod three, the sliding rod three on both sides are slidably connected with a transmission column, and the transmission column can squeeze the elastic block when it moves up and down, one side of the transmission column is threadedly connected with a threaded rod three, the lower ends of the threaded rod three on both sides are rotatably arranged on the limit plate one and the limit plate two, the lower ends of the limit plate one and the limit plate two on one side are fixedly connected with a motor three, and the output end of the motor three is fixedly connected to one end of the threaded rod three.

[0010] Preferably, one end of the lifting plate is threadedly connected to a second threaded rod, both ends of the second threaded rod are rotatably arranged on the frame, one side of the upper end of the frame is fixedly connected to a second motor, and the output end of the second motor is fixedly connected to the upper end of the second threaded rod.

[0011] Preferably, a second electric push rod is fixedly connected to one side of the right end surface of the lifting plate, and a piston end of the second electric push rod is fixedly connected to one side of the connecting rod.

[0012] Preferably, a connecting rod three is rotatably provided at one end of the correction rod, a connecting rod two is rotatably provided at one end of the connecting rod three, one end of the connecting rod two is rotatably provided at the bottom of the adjustment plate, one end of the connecting rod two is fixedly connected with a gear two, the gear two is rotatably provided at the bottom of the adjustment plate, a gear one is rotatably provided at the middle part of the lower end surface of the adjustment plate, the gear one and the gear two are meshed with each other, a motor four is fixedly connected to one side of the lower end surface of the adjustment plate, and the output end of the motor four is fixedly connected to the gear one.

[0013] Preferably, a fixed plate is fixedly connected to one side of the left end surface of the adjustment plate, a clamping block 2 is fixedly connected to one side of the left end of the fixing plate, a clamping block 1 is slidably connected to the left end surface of the fixing plate, a threaded rod 4 is threadedly connected to one side of the clamping block 1, both ends of the threaded rod 4 are rotatably set on the fixed plate, a motor 5 is fixedly connected to the lower end of one side of the fixing plate, and the output end of the motor 5 is fixedly connected to the lower end of the threaded rod 4.

[0014] Preferably, a threaded rod 1 is threadedly connected to one side of the upper end of the skateboard, one end of the threaded rod 1 is rotatably set on a limit plate 2, one side of the upper end of the limit plate 2 is fixedly connected to a motor 1, and the output end of the motor 1 is fixedly connected to one end of the threaded rod 1.

[0015] Preferably, two sliding rods are slidably connected to both sides of the middle part of the upper end of the frame, and one end of the sliding rod is fixedly connected to a correction plate.

[0016] Preferably, electric push rods three are fixedly connected to both sides of the middle of the upper end of the frame, and the piston end of the electric push rod three is fixedly connected to one side of the correction plate.

[0017] The beneficial effects of the present invention are as follows: 1. The feeding device of the corrugated paper box printing machine described in the present invention utilizes an anti-squeezing intermittent feeding mechanism to place multiple cartons in the same place, and according to actual needs, the cartons are intermittently dropped onto the conveyor belt at a fixed frequency, and enter the printing machine one by one for printing, which is convenient for the subsequent collection and management of the printed cartons. In addition, since multiple cartons can be quickly temporarily stored in the same place, it also saves the workers from having to wait for the previous carton to be printed when placing the cartons one by one on the conveyor belt, which not only reduces the workers' labor intensity, but also avoids printing errors caused by placing too fast or too slow. In addition, two adjacent cartons are separated by elastic blocks, so the cartons will not be deformed and damaged due to squeezing. In addition, when workers make operating errors and When a carton printed with a different pattern is arranged together with other cartons, the carton can be placed between clamp block 1 and clamp block 2 by controlling the position of the adjusting plate according to the position of the wrongly placed carton, and then the carton can be clamped by clamp block 1 and clamp block 2, and then the adjusting plate can be driven to move horizontally to pull out the carton with the wrong position. When the cartons printed with the same pattern above it have completed printing, the clamped carton can be reset to the initial position under the action of clamp block 1 and clamp block 2, and the remaining cartons can be printed in sequence, thereby avoiding the situation where a carton printed with a different pattern is arranged together with other cartons due to operational errors, and the other cartons need to be dropped before they can be taken out. This is more convenient and ensures the normal progress of printing work.

[0018] 2. The feeding device of a corrugated cardboard box printing machine described in the present invention can use two electric push rods to drive the correction plates on both sides to approach each other at the same time until they are in contact with the sides of the cardboard box when the cardboard box moves between the two correction plates. At this time, the cardboard box is straightened, so that the angles of the cardboard boxes entering the printing machine are uniform, ensuring the uniformity of printing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure at the top plate; Figure 3 yes Figure 2 A partial enlarged view of the middle part; Figure 4 It is a schematic diagram of the three-dimensional structure at the connection block; Figure 5 yes Figure 4 A partial enlarged view of point B in the middle; Figure 6 It is a schematic diagram of the three-dimensional structure at the lifting plate; Figure 7It is a schematic diagram of the three-dimensional structure at the adjustment plate; Figure 8 yes Figure 7 A partial enlarged view of point C in the middle; Fig. 9 It is a schematic diagram of the three-dimensional structure at another viewing angle of the adjustment plate; Fig.10 It is a schematic diagram of the three-dimensional structure of the correction plate.

[0021] In the figure: 1, frame; 2, conveyor belt; 3, frame; 4, correction plate; 5, top plate; 6, printing press; 7, limit plate 1; 8, slide bar 1; 9, connecting rod 1; 10, connecting block; 11, electric push rod 1; 12, limit plate 2; 13, slide plate; 14, motor 1; 15, threaded rod 1; 16, motor 2; 17, threaded rod 2; 18, lifting plate; 19, electric push rod 2; 20, slide bar 2; 21, elastic block ; 22. Spring; 23. Transmission column; 24. Motor three; 25. Threaded rod three; 26. Slide rod three; 27. Adjustment plate; 28. Correction rod; 29. ​​Motor four; 30. Gear one; 31. Gear two; 32. Connecting rod two; 33. Connecting rod three; 34. Connecting rod; 35. Fixed plate; 36. Clamp one; 37. Clamp two; 38. Motor five; 39. Threaded rod four; 40. Electric push rod three; 41. Pillar. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. 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.

[0023] Please refer to Figure 1-Figure 10 The present invention provides a technical solution: a feeding device for a corrugated paper box printing machine, comprising a frame 1, a conveyor belt 2 is arranged on the frame 1, and the corrugated paper box can enter the printing machine 6 through the conveyor belt 2 for printing, and an anti-squeezing intermittent unloading mechanism for controlling the feeding frequency of the corrugated paper box is arranged on the frame 1; The anti-extrusion intermittent unloading mechanism includes two pillars 41 fixedly connected to the left side of the upper end of the frame 1, one side of the upper end of the pillar 41 is fixedly connected to a top plate 5, one side of the top plate 5 is slidably connected to two limit plates 1 7, and the other side is slidably connected to two limit plates 2 12, one side of the limit plate 2 12 is slidably connected to a slide plate 13, one side of the limit plate 1 7 and the limit plate 2 12 are both slidably connected to multiple elastic blocks 21, and the spacing between adjacent elastic blocks 21 is the same, the middle part of the upper end of the frame 1 is fixedly connected to a frame body 3, one side of the frame body 3 is slidably connected to a lifting plate 18, the middle part of the lifting plate 18 is slidably connected to two sliding rods 20, one end of the sliding rod 20 is fixedly connected to an adjusting plate 27, and the adjusting plate 27 is slidably connected to multiple correction rods 28.

[0024] In this embodiment, Figure 1-Figure 9 As shown, an electric push rod 11 is fixedly connected to the middle of the upper end surface of the top plate 5, and a connecting block 10 is fixedly connected to the piston end of the electric push rod 11. A plurality of connecting rods 9 are rotatably provided on the connecting block 10, and the upper ends of the limit plate 17 and the limit plate 2 12 are both rotatably connected to one end of the connecting rod 9.

[0025] One side of the elastic block 21 is fixedly connected with a spring 22, and the other ends of the springs 22 on both sides are fixedly connected to one side of the limit plate 1 7 and the limit plate 2 12, and the lower ends of the limit plate 1 7 and the limit plate 2 12 on one side are fixedly connected with a slide rod 3 26, and the slide rod 3 26 on both sides are slidably connected with a transmission column 23, and the transmission column 23 can squeeze the elastic block 21 when it moves up and down, and one side of the transmission column 23 is threadedly connected with a threaded rod 3 25, and the lower ends of the threaded rod 3 25 on both sides are rotatably set on the limit plate 1 7 and the limit plate 2 12, and the lower ends of the limit plate 1 7 and the limit plate 2 12 on one side are fixedly connected with a motor 3 24, and the output end of the motor 3 24 is fixedly connected to one end of the threaded rod 3 25.

[0026] One end of the lifting plate 18 is threadedly connected to a threaded rod 17 , both ends of the threaded rod 17 are rotatably arranged on the frame 3 , one side of the upper end of the frame 3 is fixedly connected to a motor 16 , and the output end of the motor 16 is fixedly connected to the upper end of the threaded rod 17 .

[0027] One side of the right end surface of the lifting plate 18 is fixedly connected with an electric push rod 19 , and the piston end of the electric push rod 19 is fixedly connected to one side of the connecting rod 34 .

[0028] A connecting rod three 33 is rotatably provided at one end of the correction rod 28, a connecting rod two 32 is rotatably provided at one end of the connecting rod three 33, one end of the connecting rod two 32 is rotatably provided at the bottom of the adjustment plate 27, one end of the connecting rod two 32 is fixedly connected with a gear two 31, the gear two 31 is rotatably provided at the bottom of the adjustment plate 27, a gear one 30 is rotatably provided at the middle part of the lower end surface of the adjustment plate 27, the gear one 30 and the gear two 31 are meshed with each other, a motor four 29 is fixedly connected to one side of the lower end surface of the adjustment plate 27, and the output end of the motor four 29 is fixedly connected to the gear one 30.

[0029] A fixing plate 35 is fixedly connected to one side of the left end surface of the adjustment plate 27, a clamping block 2 37 is fixedly connected to one side of the left end of the fixing plate 35, a clamping block 1 36 is slidably connected to the left end surface of the fixing plate 35, a threaded rod 4 39 is threadedly connected to one side of the clamping block 1 36, both ends of the threaded rod 4 39 are rotatably set on the fixing plate 35, a motor 5 38 is fixedly connected to the lower end of one side of the fixing plate 35, and the output end of the motor 5 38 is fixedly connected to the lower end of the threaded rod 4 39.

[0030] A threaded rod 15 is threadedly connected to one side of the upper end of the slide plate 13, and one end of the threaded rod 15 is rotatably set on the limit plate 2 12. A motor 14 is fixedly connected to one side of the upper end of the limit plate 2, and the output end of the motor 14 is fixedly connected to one end of the threaded rod 15.

[0031] Specifically, when the feeding device of the existing corrugated carton printing machine is in use, the carton is placed on the conveyor belt 2, and the carton enters the printing machine 6 with the conveyor belt 2 for printing. However, when it is necessary to print multiple cartons in sequence, in order to ensure that the cartons can be printed in an orderly manner through the printing machine 6 and facilitate the subsequent collection and management of the printed cartons, it is necessary to keep a certain distance between the cartons and enter the printing machine 6 one by one at a fixed frequency for printing. In the prior art, if all cartons are placed on the conveyor belt 2 at one time, it is difficult to effectively control the distance between the cartons, which will affect the normal working frequency or rhythm of the printing machine 6. In addition, in some cases, the printing speed of the printing machine 6 may be slow, and when the worker places the cartons one by one on the conveyor belt 2 at a fixed frequency, it is necessary to wait for the previous carton to be printed. This will not only increase the labor intensity of the workers, but may also cause the cartons to be placed too fast or too slow, thereby causing printing errors. Therefore, in order to solve the above problems, this embodiment is used for cartons of the same batch with the same specifications and square top and bottom surfaces. Such cartons are more common, and in order to facilitate observation of the drawings and avoid clutter, only the elastic block 21 and other structures on the limiting plate 1 7 are shown, and the elastic block 21 on the limiting plate 2 12 on one side is the same as the elastic block 21 and other structures on the limiting plate 1 7; The printing machine 6 is set on the path where the carton moves along the conveyor belt 2, and the carton is placed on the upper end surface of the adjustment plate 27. Then, the motor 4 29 is used to drive the gear 1 30 to rotate, so that multiple gears 2 31 and connecting rod 2 32 can be rotated at the same time. The connecting rod 2 32 drives the connecting rod 3 33 to rotate, so that multiple correction rods 28 can slide radially at the same time and approach the side of the carton. When all the correction rods 28 are in contact with the side of the carton, the four sides of the carton are parallel to the four sides of the adjustment plate 27. In addition, the electric push rod 11 is used to drive the connecting block 10 to rise and fall, so that the connecting rod 1 9 is rotated, so that the limit plate 1 7 and the limit plate 2 12 can be moved at the same time, so that the angle of the limit plate 1 7 and the limit plate 2 1 2. The angle formed by the slide plate 13 is aligned with the four corners of the carton. At this time, the motor 2 16 is used to drive the threaded rod 2 17 to rotate, so that the lifting plate 18 and the adjusting plate 27 rise. When the bottom surface of the carton is higher than the elastic block 21 on the uppermost side, the motor 3 24 can drive the threaded rod 3 25 to rotate, so that the transmission column 23 moves downward. The transmission column 23 will first squeeze the elastic block 21 on the uppermost side, and the spring 22 will be compressed. Moreover, when the transmission column 23 moves up and down, it is staggered with the top plate 5 and will not conflict with the top plate 5. When the elastic block 21 on the uppermost side is squeezed, it will move toward the inner side of the limit plate 7. At this time, the elastic block 21 will support both sides of the bottom of the carton, and then drive the correction rod 28 releases the carton and resets it downward to the initial position, and then repeats the above operation. As the transmission column 23 gradually descends, each rising carton will stop under the previous carton and be supported by the elastic block 21. When all the cartons are placed, the electric push rod 21 is used to drive the adjustment plate 27 to move away from under the carton. When the carton needs to be put into the printing machine 6 for printing, the transmission column 23 can be driven to rise again. After the elastic block 21 loses the squeezing of the transmission column 23, it will reset under the action of the spring 22. If the carton loses support, it will slide down along the angle between the limit plate 1 7 and the limit plate 2 12 to the conveyor belt 2. At this time, the conveyor belt 2 can drive the carton to enter the printing machine 6. Printing is performed in the printing machine 6, and the rising speed of the transmission column 23 can be controlled according to actual needs, so that the printing frequency of the cartons can be controlled, so that multiple cartons can be printed in a fixed rhythm in an orderly manner, which is convenient for the subsequent collection and management of the printed cartons. In addition, since multiple cartons can be quickly temporarily stored in the same place, it is also saved that the worker needs to wait for the previous carton to be printed when placing the cartons one by one on the conveyor belt 2, which not only reduces the labor intensity of the workers, but also avoids printing errors caused by placing too fast or too slow. In addition, two adjacent cartons are separated by the elastic block 21, so the cartons will not be deformed and damaged due to squeezing. In some cases, the same batch of cartons may also need to be printed with different patterns, so the printing machine 6 needs to use different printing plates. In order to reduce the frequency of changing the printing plates of the printing machine 6, the cartons printed with the same pattern need to be sequentially fed into the printing machine 6 for printing. When the cartons printed with the same pattern are all printed, the printing plates are replaced. Therefore, when the cartons are placed on the elastic block 21, the placement order of the cartons needs to be controlled. The cartons printed with the same pattern are arranged and placed in sequence and dropped onto the conveyor belt 2 in sequence to reduce the frequency of changing the printing plates. However, in some cases, When workers manually arrange cartons on the adjustment plate 27 in sequence, a carton printed with a different pattern may be placed together with the other cartons and between two cartons due to operational errors. After all cartons are placed, it is discovered after inspection. In order not to affect the normal printing order of the cartons, it is necessary to take it out from between two adjacent cartons. If the elastic block 21 is driven away from the bottom of the carton, multiple cartons that have been placed will fall down and need to be placed again, which is troublesome. In addition, the carton that needs to be taken out may be located at a higher position, which is also Therefore, in order to avoid this problem, according to the position of the carton to be taken out, the motor 14 is first used to drive the threaded rod 15 to rotate, so that the slide plate 13 slides on the side of the limit plate 2 12, so that the limit plate 2 12 and the slide plate 13 no longer form an angle, and then the carton to be taken out is placed between the clamp block 1 36 and the clamp block 2 37 by controlling the orientation of the adjustment plate 27, and then the motor 5 38 is used to drive the threaded rod 4 39 to rotate, so that the clamp block 1 36 moves downward, and the carton can be clamped under the cooperation of the clamp block 1 36 and the clamp block 2 37, and then the adjustment plate 27 is driven to adjust the position of the carton. The plate 27 moves laterally to pull out the cartons that are placed in the wrong position. When the cartons printed with the same pattern above it all fall onto the conveyor belt 2 and the printing is completed, the printing plate is replaced, and then the clamped carton is reset to the initial position under the action of the clamp block 1 36 and the clamp block 2 37, and the remaining cartons can be printed in sequence, thereby avoiding the situation where a carton printed with a different pattern is arranged together with the remaining cartons due to operational errors, and the remaining cartons need to be dropped before they can be taken out. This is more convenient and ensures the normal progress of the printing work.

[0032] In this embodiment, Fig.10 As shown, two slide bars 8 are slidably connected to both sides of the middle of the upper end of the frame 1, and a correction plate 4 is fixedly connected to one end of the slide bar 8.

[0033] Electric push rods 3 40 are fixedly connected to both sides of the middle part of the upper end of the frame 1, and the piston end of the electric push rods 3 40 is fixedly connected to one side of the correction plate 4.

[0034] Specifically, in the above embodiment, when the carton falls onto the conveyor belt 2, it may present any angle, which will cause the angle of the carton entering the printing machine 6 to be inconsistent, thereby affecting the uniformity of printing. Therefore, in order to avoid this situation, when the carton moves between the two correction plates 4, two electric push rods 40 can be used to drive the correction plates 4 on both sides to approach each other at the same time until they are in contact with the side of the carton. At this time, the carton is straightened, so that the angle of the carton entering the printing machine 6 is uniform, thereby ensuring the uniformity of printing.

[0035] Working principle: the printing machine 6 is set on the path where the carton moves along the conveyor belt 2, and the carton is placed on the upper end surface of the adjusting plate 27, and then the motor 4 29 is used to drive the gear 1 30 to rotate, so that multiple gears 2 31 and connecting rod 2 32 can be rotated at the same time, and the connecting rod 2 32 drives the connecting rod 3 33 to rotate, so that multiple correction rods 28 can slide radially at the same time and approach the side of the carton. When all the correction rods 28 are in contact with the side of the carton, the four sides of the carton are parallel to the four sides of the adjusting plate 27, and the electric push rod 11 is used to drive the connecting block 10 to rise and fall, so that the connecting rod 1 9 is rotated, so that the limit plate 1 7 and the limit plate 2 12 can be moved at the same time, so that the angle of the limit plate 1 7 and the limit The angle formed by the plate 2 12 and the slide plate 13 is aligned with the four corners of the carton. At this time, the motor 2 16 is used to drive the threaded rod 2 17 to rotate, so that the lifting plate 18 and the adjusting plate 27 rise. When the bottom surface of the carton is higher than the elastic block 21 on the uppermost side, the motor 3 24 can drive the threaded rod 3 25 to rotate, so that the transmission column 23 moves downward. The transmission column 23 will first squeeze the elastic block 21 on the uppermost side, and the spring 22 will be compressed. Moreover, when the transmission column 23 moves up and down, it will be staggered with the top plate 5 and will not conflict with the top plate 5. When the elastic block 21 on the uppermost side is squeezed, it will move toward the inner side of the limit plate 7. At this time, the elastic block 21 will support both sides of the bottom of the carton, and then drive the correction plate 17 to move upward. The positive rod 28 releases the carton and resets it downward to the initial position, and then repeats the above operation. As the transmission column 23 gradually descends, each rising carton will stop under the previous carton and be supported by the elastic block 21. When all the cartons are placed, the electric push rod 21 is used to drive the adjustment plate 27 to move away from under the carton. When the carton needs to be put into the printing machine 6 for printing, the transmission column 23 can be driven to rise again. After the elastic block 21 loses the squeezing of the transmission column 23, it will reset under the action of the spring 22. If the carton loses support, it will slide down along the angle between the limit plate 1 7 and the limit plate 2 12 to the conveyor belt 2. At this time, the conveyor belt 2 can drive the carton into the printing machine 6. The printing work is carried out in the printing machine 6, and the rising speed of the transmission column 23 can be controlled according to actual needs, so that the printing frequency of the carton can be controlled, so that multiple cartons can be printed in a fixed rhythm in an orderly manner, which is convenient for the subsequent collection and management of the printed cartons. In addition, since multiple cartons can be quickly temporarily stored in the same place, it is also saved that the worker needs to wait for the previous carton to be printed when placing the cartons one by one on the conveyor belt 2, which not only reduces the labor intensity of the workers, but also avoids printing errors caused by placing too fast or too slow. In addition, two adjacent cartons are separated by the elastic block 21, so the cartons will not be deformed and damaged due to squeezing.In some cases, the same batch of cartons may also need to be printed with different patterns, so the printing machine 6 needs to use different printing plates. In order to reduce the frequency of changing the printing plates of the printing machine 6, the cartons printed with the same pattern need to be sequentially entered into the printing machine 6 for printing. When the cartons printed with the same pattern are all printed, the printing plates are replaced. Therefore, when the cartons are placed on the elastic block 21, the placement order of the cartons needs to be controlled. The cartons printed with the same pattern are arranged in sequence and dropped onto the conveyor belt 2 in sequence to reduce the frequency of changing the printing plates. However, in some cases, when the workers manually arrange the cartons in sequence on the adjustment plate 27, Due to operational errors, a carton printed with different patterns may be arranged and placed together with the other cartons, and between two cartons. After all cartons are placed, it is discovered after inspection. In order not to affect the normal printing order of the cartons, it is necessary to take it out from between two adjacent cartons. If the elastic block 21 is driven away from the bottom of the carton, multiple cartons that have been placed will fall off, and they will need to be placed again, which is more troublesome. In addition, the position of the carton to be taken out may be high, which is inconvenient to take. Therefore, in order to avoid this problem, according to the position of the carton to be taken out, the motor 14 is first used to drive the threaded rod 15 The slide plate 13 is rotated to slide on one side of the limiting plate 12, so that no angle is formed between the limiting plate 12 and the slide plate 13, and then the carton to be taken out is placed between the clamping block 1 36 and the clamping block 2 37 by controlling the orientation of the adjusting plate 27, and then the motor 5 38 drives the threaded rod 4 39 to rotate to move the clamping block 1 36 downward, so that the carton can be clamped under the cooperation of the clamping block 1 36 and the clamping block 2 37, and then the adjusting plate 27 is driven to move horizontally to pull out the carton placed in the wrong position, when the cartons printed with the same pattern above it all fall above the conveyor belt 2 and the printing is completed, the printing plate is replaced, and then Under the action of the clamping block 1 36 and the clamping block 2 37, the clamped carton is reset to the initial position, and the remaining carton can be printed in sequence, thereby avoiding the situation that a carton printed with different patterns is arranged together with the remaining carton due to operational errors, and the remaining carton needs to be dropped before it can be taken out. It is more convenient and ensures the normal progress of the printing work. When the carton moves between the two correction plates 4, the two electric push rods 3 40 can be used to drive the correction plates 4 on both sides to approach each other at the same time until they are in contact with the side of the carton. At this time, the carton is straightened, so that the angle of the carton entering the printing machine 6 is uniform, ensuring the neatness of printing. ;

[0036] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A feeding device for a corrugated box printing machine, comprising a frame (1), characterized in that: The frame (1) is provided with a conveyor belt (2), and the corrugated paper boxes can enter the printing machine (6) via the conveyor belt (2) for printing. The frame (1) is provided with an anti-squeezing intermittent feeding mechanism for controlling the feeding frequency of the corrugated paper boxes; The anti-extrusion intermittent feeding mechanism comprises two pillars (41) fixedly connected to the left side of the upper end of the frame (1); one side of the upper end of the pillar (41) is fixedly connected to a top plate (5); one side of the top plate (5) is slidably connected to two limit plates (7) and the other side is slidably connected to two limit plates (12); one side of the limit plate (12) is slidably connected to a slide plate (13); one side of the limit plate (7) and the limit plate (12) are both slidably connected to a plurality of elastic blocks (21); the spacing between adjacent elastic blocks (21) is the same; the middle part of the upper end of the frame (1) is fixedly connected to a frame body (3); one side of the frame body (3) is slidably connected to a lifting plate (18); the middle part of the lifting plate (18) is slidably connected to two sliding rods (20); one end of the sliding rod (20) is fixedly connected to an adjustment plate (27); and the adjustment plate (27) is slidably connected to a plurality of correction rods (28).

2. The feeding device of a corrugated box printing machine according to claim 1, characterized in that: An electric push rod 1 (11) is fixedly connected to the middle of the upper end surface of the top plate (5); a connecting block (10) is fixedly connected to the piston end of the electric push rod 1 (11); a plurality of connecting rods 1 (9) are rotatably arranged on the connecting block (10); and the upper ends of the limit plate 1 (7) and the limit plate 2 (12) are both rotatably connected to one end of the connecting rod 1 (9).

3. The feeding device of a corrugated box printing machine according to claim 1, characterized in that: One side of the elastic block (21) is fixedly connected with a spring (22), and the other ends of the springs (22) on both sides are fixedly connected to one side of the limit plate 1 (7) and the limit plate 2 (12). The lower ends of the limit plate 1 (7) and the limit plate 2 (12) on one side are fixedly connected with a sliding rod 3 (26), and the sliding rod 3 (26) on both sides are slidably connected with a transmission column (23). When the transmission column (23) moves up and down, it can squeeze the elastic block (21). One side of the transmission column (23) is threadedly connected with a threaded rod 3 (25), and the lower ends of the threaded rod 3 (25) on both sides are rotatably arranged on the limit plate 1 (7) and the limit plate 2 (12). The lower ends of the limit plate 1 (7) and the limit plate 2 (12) on one side are fixedly connected with a motor 3 (24), and the output end of the motor 3 (24) is fixedly connected to one end of the threaded rod 3 (25).

4. The feeding device of a corrugated box printing machine according to claim 1, characterized in that: One end of the lifting plate (18) is threadedly connected to a second threaded rod (17), both ends of the second threaded rod (17) are rotatably arranged on the frame (3), one side of the upper end of the frame (3) is fixedly connected to a second motor (16), and the output end of the second motor (16) is fixedly connected to the upper end of the second threaded rod (17).

5. The feeding device of a corrugated box printing machine according to claim 1, characterized in that: A second electric push rod (19) is fixedly connected to one side of the right end surface of the lifting plate (18), and a piston end of the second electric push rod (19) is fixedly connected to one side of the connecting rod (34).

6. The feeding device of a corrugated box printing machine according to claim 1, characterized in that: A connecting rod 3 (33) is rotatably provided at one end of the correction rod (28), a connecting rod 2 (32) is rotatably provided at one end of the connecting rod 3 (33), one end of the connecting rod 2 (32) is rotatably provided at the bottom of the adjustment plate (27), one end of the connecting rod 2 (32) is fixedly connected to a gear 2 (31), the gear 2 (31) is rotatably provided at the bottom of the adjustment plate (27), a gear 1 (30) is rotatably provided at the middle of the lower end surface of the adjustment plate (27), the gear 1 (30) and the gear 2 (31) are meshed with each other, a motor 4 (29) is fixedly connected to one side of the lower end surface of the adjustment plate (27), and the output end of the motor 4 (29) is fixedly connected to the gear 1 (30).

7. The feeding device of a corrugated box printing machine according to claim 1, characterized in that: A fixing plate (35) is fixedly connected to one side of the left end surface of the adjustment plate (27), a clamping block 2 (37) is fixedly connected to one side of the left end of the fixing plate (35), a clamping block 1 (36) is slidably connected to the left end surface of the fixing plate (35), a threaded rod 4 (39) is threadedly connected to one side of the clamping block 1 (36), both ends of the threaded rod 4 (39) are rotatably arranged on the fixing plate (35), a motor 5 (38) is fixedly connected to the lower end of one side of the fixing plate (35), and an output end of the motor 5 (38) is fixedly connected to the lower end of the threaded rod 4 (39).

8. The feeding device of a corrugated box printing machine according to claim 1, characterized in that: One side of the upper end of the slide plate (13) is threadedly connected to a threaded rod (15), one end of the threaded rod (15) is rotatably arranged on the second limiting plate (12), one side of the upper end of the second limiting plate (12) is fixedly connected to a motor (14), and the output end of the motor (14) is fixedly connected to one end of the threaded rod (15).

9. The feeding device of a corrugated box printing machine according to claim 1, characterized in that: Two sliding rods (8) are slidably connected to both sides of the middle of the upper end of the frame (1), and one end of the sliding rod (8) is fixedly connected to a correction plate (4).

10. The feeding device of a corrugated box printing machine according to claim 9, characterized in that: Electric push rods 3 (40) are fixedly connected to both sides of the middle of the upper end of the frame (1), and the piston end of the electric push rod 3 (40) is fixedly connected to one side of the correction plate (4).

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