CN116619890A

CN116619890A - Online printing device of bag making machine

Info

Publication number: CN116619890A
Application number: CN202310204019.7A
Authority: CN
Inventors: 宋建新; 杨伟; 刘金花; 吴大江
Original assignee: Shenghui New Material Co ltd
Current assignee: Shenghui New Material Co ltd
Priority date: 2023-03-06
Filing date: 2023-03-06
Publication date: 2023-08-22

Abstract

The invention discloses an online printing device of a bag making machine, which comprises an unreeling mechanism, a reeling mechanism and a packaging bag film between the unreeling mechanism and the reeling mechanism, wherein the unreeling mechanism and the reeling mechanism are provided with a printing device, the printing device comprises an upper roller and a printing roller positioned below the upper roller, the printing roller can move along the axial direction of the printing roller, and the online printing device also comprises an adjusting mechanism for controlling the printing roller to move along the axial direction. The printing rollers can move along the axial direction of the printing rollers, so that when the printing dislocation is found, the printing rollers can be corrected by controlling the fine adjustment of the transverse positions of the printing rollers, and the printing machine is convenient and quick. The position of the printing roller can be conveniently shifted and fixed by arranging the shifting fork in the printing device. The shifting fork is matched with the linear bearing through the two guide shafts, so that sliding resistance can be greatly reduced, accuracy is high, and the printing roller can be conveniently and accurately adjusted in position. The shifting fork can be finely adjusted accurately through the cylinder cam groove on the adjusting cylinder, and the shifting fork is driven to move by utilizing the rotation torque of the adjusting cylinder.

Description

Online printing device of bag making machine

Technical Field

The invention relates to the technical field of printing equipment, in particular to an online printing device of a bag making machine.

Background

The bag making machine is a machine for making various plastic bags or bags made of other materials, the processing range of the bag making machine is various plastic bags or bags made of other materials with different sizes, thicknesses and specifications, and the plastic bags are generally taken as main products. In order to improve the attractive appearance of the product, the merchant increases the selling point of the product and improves the recognition degree of the product, the outer packaging bag of the product and the appearance of the product can be designed, namely, patterns or fonts are designed on the outer packaging bag, so that the recognition degree is improved, and the merchant is attracted to purchase by customers.

The utility model discloses a roll toilet paper printing device of application number CN200920171370.6 among the prior art, or the online printing device of pattern on the sanitary towel of application number CN201410223924.8, all adopts a pair of upper roller and the stamp roller of relative setting about to carry out online printing to the product surface, its defect lies in: because the stamp on its stamp roller is the stamp of fixed setting, if because assembly accuracy is not enough, when the phenomenon of off tracking dislocation takes place for the decorative pattern of printing out during the printing, extremely be difficult to adjust, usually need stop, pull down the stamp roller to just can drive production once more after installing again and the check-up finishes, and because equipment long-time production takes place the skew dislocation between product and the stamp roller, also be inconvenient for on-line adjustment, so cause a great deal of inconvenience, lead to reduction in production efficiency and product quality. Secondly, in the prior art, each embossing roller can only print with a single color, and multiple printing devices are required to be arranged for patterns with rich colors, so that the equipment cost is increased, and the printing efficiency is lower.

In view of the foregoing, it is desirable to provide an online printing device for a bag machine that solves the above-mentioned problems.

Disclosure of Invention

The invention aims to solve the technical problems, and provides an online printing device of a bag making machine, which can adjust a printing roller online and timely when the printing of a product is offset, so that the printing quality of the product is improved.

In order to achieve the above purpose, the present invention adopts the following technical scheme: the utility model provides a system bag machine online printing device, includes unreeling mechanism and winding mechanism and wrapping bag membrane between the two, is equipped with at least a set of printing device between unreeling mechanism and winding mechanism, and this printing device includes the upper roller and is located the embossing roller of upper roller below, and embossing roller upper surface is equipped with the pattern relief printing that is used for printing, embossing roller can follow its axial displacement, still includes control embossing roller along axial displacement's adjustment mechanism.

Further, the printing device is arranged in the outer frame, the printing rotating shaft is rotatably connected in the outer frame, the printing device comprises a printing roller, the printing roller is sleeved on the printing rotating shaft, a convex key is axially arranged on the side surface of the printing rotating shaft, a key groove corresponding to the convex key is formed in the printing roller, and the printing roller can be driven to rotate by the printing rotating shaft and axially slide along the printing rotating shaft; the printing device is provided with an outer frame body, and a driving motor for driving the printing rotating shaft to rotate is arranged on the outer frame body.

Further, the end face of one side of the printing roller is provided with a driving ring groove, the adjusting mechanism comprises a shifting fork, a fork opening of the shifting fork is matched with the driving ring groove, the driving ring groove is inserted by a fork opening of the shifting fork, the driving ring groove is rotationally connected with the fork opening, and the shifting fork can axially move along the printing roller and drive the position of the printing roller to move.

Further, at least two guide shafts which are arranged in parallel are arranged on the outer frame body, the guide shafts are parallel to the printing rotating shaft, the shifting fork is far away from the fork opening end and is in sliding connection with the two guide shafts, and the linear bearings are arranged at the two sliding connection positions of the shifting fork.

Further, the adjusting mechanism further comprises a driving mechanism for the shifting fork, the driving mechanism comprises an adjusting cylinder and a fixing shaft, two ends of the fixing shaft are fixedly arranged on the outer frame body and are parallel to the printing rotating shaft, the adjusting cylinder is rotationally connected to the fixing shaft, a cylinder cam groove is formed in the cylindrical curved surface of the adjusting cylinder, a cam key is matched with the cylinder cam groove on the shifting fork, and the shifting fork is pushed to finely adjust and move through the matching of the cylinder cam groove and the cam key when the adjusting cylinder rotates.

Further, the worm wheel is fixedly arranged on one side end face of the adjusting cylinder, a worm is rotatably connected with the side wall of the outer frame body, the worm wheel is connected with the worm in a meshed mode, and one end, extending out of the outer frame body, of the worm is provided with the adjusting hand wheel.

Further, a plurality of groups of printing devices are arranged in the outer frame body; printing rollers in each group of printing devices are immersed in the ink hopper, and a hopper lifting cylinder is arranged below the ink hopper.

Further, a plurality of partition boards are arranged in the ink hopper, the partition boards divide the ink hopper into a plurality of compartments, and printing rollers are correspondingly arranged in the compartments.

Further, a lifting cylinder II for controlling the lifting of the upper roller is arranged above the upper roller.

Further, a scraper is further arranged in the outer frame body, and the scraper is matched with the roller surface of the printing roller.

Compared with the prior art, the invention has the beneficial effects that:

1. the printing roller of this device possesses high accuracy regulatory function, because the printing roller can follow its axial displacement to when finding printing dislocation, can correct through the fine setting of the transverse position of control each printing roller, convenient and fast.

2. The position of the printing roller can be conveniently shifted and fixed by arranging the shifting fork in the printing device.

3. The shifting fork is matched with the linear bearing through the two guide shafts, so that sliding resistance can be greatly reduced, accuracy is high, and the printing roller can be conveniently and accurately adjusted in position.

4. Can carry out accurate fine setting to the shift fork through the cylinder cam groove on the adjusting cylinder, utilize the rotation moment of torsion drive shift fork of adjusting the cylinder to remove to utilize the unidirectional drive principle of worm gear, can carry out automatic spacing to the shift fork after making the regulation, thereby carry out spacingly to the axial position of stamp roller.

Drawings

FIG. 1 is a schematic diagram of an on-line printing device of a bag making machine according to the present invention;

FIG. 2 is an isometric view of an on-line printing device of a bag making machine according to the present invention;

FIG. 3 is one of the exploded views of the in-line printing apparatus of the present invention;

FIG. 4 is a second exploded view of the in-line printing apparatus of the present invention;

in the figure:

1. an unreeling mechanism; 2. a winding mechanism; 3. packaging bag films; 4. a printing device; 5. an upper roller; 6. a printing roller; 7. an adjusting mechanism; 8. an outer frame body; 9. printing a rotating shaft; 10. a convex key; 11. a key slot; 12. a driving motor; 13. driving the ring groove; 14. a shifting fork; 15. fork openings; 16. a guide shaft; 17. adjusting a cylinder; 18. a fixed shaft; 19. cylindrical cam grooves; 20. a cam key; 21. a worm wheel; 22. a worm; 23. an adjusting hand wheel; 24. an ink hopper; 25. a hopper lifting cylinder; 26. a partition plate; 27. a lifting cylinder II; 28. a scraper.

Detailed Description

The following description of the embodiments of the present invention 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 invention, but not all embodiments.

Example 1

An online printing device of a bag making machine is shown in figure 1, and comprises an unreeling mechanism 1, a reeling mechanism 2 and a packaging bag film 3 between the unreeling mechanism 1 and the reeling mechanism 2, wherein at least one group of printing devices 4 are arranged between the unreeling mechanism 1 and the reeling mechanism 2, in actual production, two ends of the packaging bag film 3 are respectively wound on the unreeling mechanism 1 and the reeling mechanism 2, when the reeling mechanism 2 operates, the packaging bag film 3 can be pulled to pass through the printing devices 4, thereby realizing online printing of the packaging bag film 3, the printing devices 4 comprise an upper roller 5 and a printing roller 6 positioned below the upper roller 5, the upper surface of the printing roller 6 is provided with a pattern relief plate used for printing, a lifting cylinder II 27 for controlling the lifting of the upper roller 5 is arranged above the upper roller 5, the upper roller 5 can move up and down under the driving of the lifting cylinder II 27, thereby controlling the force of the upper roller 5 pressing on the printing roller 6, the packaging bag film 3 passes through the two rollers, so that the printing force on the surface of the packaging bag film 3 is regulated, the upper roller 5 can be set as a soft upper roller 5 all the time, the printing definition is improved, the ink hopper 24 is arranged below the printing roller 6, the hopper lifting cylinder 25 is arranged below the ink hopper 24, so that the side surface of the printing roller 6 can be immersed into the ink hopper 24 when rotating to the lower side, the surface of the printing roller 6 is full of ink when rotating again, continuous printing is realized, the printing roller 6 uniformly coats and scrapes the ink on the surface of the printing roller 6 through the scraper 28 when rotating out of the printing roller 6, the ink thickness is uniform, the printing effect is good, in order to conveniently correct the problem of pattern printing deviation on the packaging bag film 3 in actual use, the device is provided with the printing roller 6 in a structure capable of moving along the axial direction, the range that stamp roller 6 moved on stamp pivot 9 constitutes the range that this device can be adjusted to the stamp pattern to the problem of coping pattern printing off tracking, displacement that the axial moved is followed through adjustment mechanism 7 control stamp roller 6 when this device is used.

Embodiment two:

as shown in fig. 2, the printing device 4 of the device is arranged in an outer frame body 8, a printing rotating shaft 9 is connected in a rotating way in the outer frame body 8, a driving motor 12 for driving the printing rotating shaft 9 to rotate is arranged on the outer frame body 8, and the rotating speed of the printing device is controlled by the driving motor 12, so that the circumferential roller speed of a printing roller is matched with the moving speed of a packaging bag film 3. Printing device 4 includes stamp roller 6, stamp roller 6 cover is located on stamp pivot 9, stamp pivot 9 side is equipped with protruding key 10 along the axial, stamp roller 6 is equipped with the keyway 11 rather than corresponding, as shown in the figure, when stamp roller 6 cover is on stamp pivot 9, protruding key 10 is gone into in the keyway 11 by the protruding card in side, so, make stamp roller 6 can rotate along with the drive of stamp pivot 9, simultaneously, because protruding key 10 and keyway 11 can not restrict the axial displacement of stamp roller 6, so stamp roller 6 can also carry out lateral shifting along stamp pivot 9, thereby when the printing pattern skew on the product, can carry out lateral adjustment.

In order to realize that the printing roller 6 can be adjusted by moving transversely when printing and rotating, as shown in fig. 3, a driving ring groove 13 is fixedly arranged on one side end surface of the printing roller 6, the driving ring groove 13 is of a structure that a circle of circular ring groove is arranged on the circumferential side surface, the adjusting mechanism 7 comprises a shifting fork 14, a fork opening 15 of the shifting fork 14 is matched with the driving ring groove 13, the driving ring groove 13 is inserted by the fork opening 15 of the shifting fork 14, the opening caliber of the fork opening 15 of the shifting fork 14 is matched with the diameter of the driving ring groove 13, the thickness of the shifting fork 14 is matched with the width of the driving ring groove 13, a large ore quantity is avoided, the printing roller can freely rotate when the fork opening 15 is inserted into the driving ring groove 13, and it is understood that balls can be arranged on two side surfaces of the fork opening 15, so that the matching of the shifting fork 14 and the driving ring groove 13 is changed from sliding friction to rolling friction, thereby greatly reducing friction resistance and being beneficial to improving control precision, and when in use, the printing roller 6 can be driven to move transversely by shifting the shifting fork 14, and the rotation of the printing roller 6 is not affected.

Further, in order to enable the shifting fork 14 to stably move transversely, at least two guide shafts 16 which are arranged in parallel are arranged on the outer frame body 8, the guide shafts 16 are parallel to the printing rotating shaft 9, the end, away from the fork opening 15, of the shifting fork 14 is slidably connected with the two guide shafts 16, linear bearings are arranged at two sliding connection positions of the shifting fork 14, and the two guide shafts 16 can also adopt the linear bearings, so that the moving smoothness of the shifting fork 14 is improved.

Embodiment III:

in order to conveniently drive the shifting fork 14 to move and limit the position of the shifting fork 14, the device is provided with a driving mechanism for the shifting fork 14, as shown in fig. 3 and 4, the driving mechanism comprises an adjusting cylinder 17 and a fixed shaft 18, wherein two ends of the fixed shaft 18 are fixedly arranged on the outer frame body 8 and are parallel to the printing rotating shaft 9, the adjusting cylinder 17 is rotatably connected with the fixed shaft 18, a bearing convenient for rotation can be arranged between the adjusting cylinder 17 and the fixed shaft 18, and a worm wheel 21 is fixedly arranged on one end surface of the adjusting cylinder 17, so that the adjusting cylinder 17 can be driven to rotate by driving the worm wheel 21, and the angle of the adjusting cylinder 17 can be locked by the unidirectional property of a worm 22 of the worm wheel 21 and the worm 22 of the worm wheel 21; the side wall of the outer frame body 8 is rotationally connected with a worm 22, the worm wheel 21 is meshed with the worm 22, one end of the worm 22 extending out of the outer frame body 8 is provided with an adjusting hand wheel 23, and the adjusting cylinder 17 inside can be conveniently controlled to rotate at a fixed angle through the adjusting hand wheel 23 extending out of the side wall of the outer frame body 8.

Further, the cylindrical curved surface of the adjusting cylinder 17 is provided with a cylindrical cam groove 19, the cylindrical cam groove 19 is spirally wound around at least one circle on the outer periphery of the adjusting cylinder 17, it can be understood that as the number of circles increases, the adjustment of the shifting fork 14 is finer and more accurate, as shown in fig. 4, the shifting fork 14 is matched with the cylindrical cam groove 19 and is provided with a cam key 20, the diameter of the cam key 20 is matched with the width of the cylindrical cam groove 19, so that a larger ore quantity is avoided, during assembly, the cam key 20 is inserted into the cylindrical cam groove 19 to form cam fit, and when the adjusting cylinder 17 rotates, the shifting fork 14 is pushed to finely adjust by the cooperation of the cylindrical cam groove 19 and the cam key 20, so that when the adjusting cylinder 17 rotates, the driving force for pushing the shifting fork 14 to transversely move is formed by utilizing the rotation torque of the adjusting cylinder 17 through the conversion of a cam mechanism, and the cam fit structure can also limit the position of the shifting fork 14, namely the position of the printing roller 6 is controlled.

Embodiment four:

the number of the printing rollers 6 in the printing device 4 is not limited, a single printing roller 6 or a plurality of printing rollers 6 can be set according to the complexity of printing patterns and the diversity of colors, when one printing roller 6 is set, only one shifting fork 14 and one group of adjusting mechanisms 7 can be set for control, when a plurality of printing rollers 6 are set, a plurality of groups of adjusting mechanisms 7 are needed to be correspondingly set, as shown in fig. 2, three groups of printing rollers 6 are set, it is understood that if one printing roller 6 is set, printing can only be dipped with ink of one color in printing, in order to print patterns of multiple colors, in this embodiment, a plurality of printing rollers 6 are set on the same printing rotating shaft 9, so that different patterns and different colors can be printed conveniently, and a plurality of partition boards 26 are arranged in the ink hopper 24, the partition boards 26 divide the ink hopper 24 into a plurality of partition bins, and the printing rollers 6 are correspondingly set in each partition bin. The printing rollers 6 in each group of printing devices 4 are immersed in the ink hopper 24, and different inks can be added into different compartments, so that patterns with various colors can be printed.

The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims

1. The utility model provides a bag machine on-line printing device, includes unreeling mechanism (1) and winding mechanism (2) and wrapping bag membrane (3) between the two, its characterized in that is equipped with at least a set of printing device (4) between unreeling mechanism (1) and winding mechanism (2), and this printing device (4) are including last roller (5) and be located stamp roller (6) of last roller (5) below, and stamp roller (6) upper surface is equipped with the pattern relief printing plate that is used for the printing, stamp roller (6) can follow its axial displacement, still include adjustment mechanism (7) of control stamp roller (6) along axial displacement.

2. The online printing device (4) of the bag making machine according to claim 1, wherein the printing device (4) is arranged in an outer frame body (8), a printing rotating shaft (9) is rotationally connected to the outer frame body (8), the printing device (4) comprises a printing roller (6), the printing roller (6) is sleeved on the printing rotating shaft (9), a convex key (10) is arranged on the side surface of the printing rotating shaft (9) along the axial direction, a key groove (11) corresponding to the convex key is arranged on the printing roller (6), and the printing roller (6) can be driven to rotate by the printing rotating shaft and can axially slide along the printing rotating shaft; the printing device (4) is provided with an outer frame body (8), and a driving motor (12) for driving the printing rotating shaft (9) to rotate is arranged on the outer frame body (8).

3. An on-line printing device (4) of a bag making machine according to claim 2, wherein a driving ring groove (13) is arranged on one side end surface of the printing roller (6), the adjusting mechanism (7) comprises a shifting fork (14), a fork opening (15) of the shifting fork (14) is matched with the driving ring groove (13), the driving ring groove (13) is inserted from the fork opening (15) of the shifting fork (14) to enable the driving ring groove (13) to be rotationally connected with the fork opening (15), and the shifting fork (14) can move along the axial direction of the printing roller (6) and drive the printing roller (6) to move in position.

4. An on-line printing device (4) of a bag making machine according to claim 3, characterized in that the outer frame body (8) is provided with at least two parallel guide shafts (16), the guide shafts (16) are parallel to the printing rotating shaft (9), the end of the shifting fork (14) far away from the fork opening (15) is in sliding connection with the two guide shafts (16), and the shifting fork (14) is provided with a linear bearing at the two sliding connection positions.

5. A bag making machine on-line printing device (4) according to claim 3, characterized in that the adjusting mechanism (7) further comprises a driving mechanism for a shifting fork (14), the driving mechanism comprises an adjusting cylinder (17) and a fixed shaft (18), two ends of the fixed shaft (18) are fixedly arranged on the outer frame body (8) and are parallel to the printing rotating shaft (9), the adjusting cylinder (17) is rotatably connected on the fixed shaft (18), a cylinder cam groove (19) is arranged on the cylinder curved surface of the adjusting cylinder (17), a cam key (20) is matched with the cylinder cam groove (19) on the shifting fork (14), and the shifting fork (14) is pushed to finely adjust through the matching of the cylinder cam groove (19) and the cam key (20) when the adjusting cylinder (17) rotates.

6. The online printing device (4) of the bag making machine according to claim 5, wherein a worm wheel (21) is fixedly arranged on one side end surface of the adjusting cylinder (17), a worm (22) is rotatably connected to the side wall of the outer frame body (8), the worm wheel (21) is meshed with the worm (22), and an adjusting hand wheel (23) is arranged at one end of the worm (22) extending out of the outer frame body (8).

7. An on-line printing device (4) of a bag making machine according to any one of claims 1-6, wherein the printing device (4) is provided with a plurality of groups in an outer frame body (8); the printing rollers (6) in each group of printing devices (4) are immersed in the ink hopper (24), and a hopper lifting cylinder (25) is arranged below the ink hopper (24).

8. An on-line printing device (4) of a bag making machine according to claim 7, wherein a plurality of partition boards (26) are arranged in the ink hopper (24), the partition boards (26) divide the ink hopper (24) into a plurality of compartments, and printing rollers (6) are correspondingly arranged in each compartment.

9. The online printing device (4) of the bag making machine according to claim 8, wherein a lifting cylinder II (27) for controlling the lifting of the upper roller (5) is arranged above the upper roller (5).

10. The online printing device (4) of the bag making machine according to claim 8, wherein a scraper (28) is further arranged in the outer frame body (8), and the scraper (28) is matched with the roller surface of the printing roller (6).