Printing device and labeling machine

Abstract

The present invention discloses a printing device and a labeling machine. The printing device includes a sliding frame loaded with a plurality of printing modules. Both sides of the sliding frame are respectively slidably assembled on a pair of guide rails. Both sides of the sliding frame are provided with lifting and lowering adjustment mechanisms. The lifting and lowering adjustment mechanisms include a slider fixing plate, a unit movable plate and a cylinder. The sliding frame is fixed to the unit movable plate. The slider fixing plate is provided with a slider slidably connected to the guide rail. One end of the cylinder body of the cylinder is fixed to the unit movable plate. One end of the rod body of the cylinder is fixed to the slider fixing plate. The rod body is telescopic relative to the cylinder body to realize the lifting and lowering of the printing module. The above-mentioned printing device adopts the control method of the cylinder to realize the lifting and lowering of the printing module. It is not only height-adjustable and has a large lifting force, but also occupies a small space and has a compact structure.

Description

Technical Field

[0001] The present invention relates to the field of printing technology, and in particular to a printing device and a labeling machine. Background Art

[0002] A digital label machine is a common label machine. During printing, the printing module in the printing device prints while moving.

[0003] In the above process, there must be a certain gap between the printing device and the printed object. The size of the gap affects the printing accuracy, so it is necessary to accurately adjust the height of the descent of the printing unit device; when the digital label machine is not working, the printing device needs to be raised to a safe height and moved to the nozzle moisturizing position. Moisturizing also requires a precise height, so it is also necessary to accurately adjust the height of the rise of the printing device. The existing printing device is composed of several printing unit modules. Each unit module is heavy and the printing space is limited. The lifting and adjusting mechanism of the printing device must have sufficient lifting force and a compact structure. The existing printing device mostly uses a stepper motor to drive the screw to rotate and move up and down. The stepper motor needs to be large and high-power. The stepper motor has a large size and does not meet the use conditions of limited printing space.

[0004] Therefore, how to provide a printing device with compact structure, adjustable height and large lifting force is a technical problem that technical personnel in this field need to solve urgently. Summary of the invention

[0005] The object of the present invention is to provide a printing device which uses a cylinder control method to realize the lifting of the printing module, which is not only height-adjustable and has a large lifting force, but also occupies a small space and has a compact structure. Another object of the present invention is to provide a labeling machine.

[0006] To achieve the above-mentioned purpose, the present invention provides a printing device, including a sliding frame loaded with a plurality of printing modules, the two sides of the sliding frame are respectively slidably assembled on a pair of guide beams, and the two sides of the sliding frame are provided with a lifting and lowering adjustment mechanism, and the lifting and lowering adjustment mechanism includes a slider fixing plate, a unit movable plate and a cylinder, the sliding frame is fixed to the unit movable plate, the slider fixing plate is provided with a slider slidably connected to the guide beam, one end of the cylinder body of the cylinder is fixed to the unit movable plate, one end of the rod body of the cylinder is fixed to the slider fixing plate, and the rod body is telescoped relative to the cylinder body to realize the lifting and lowering of the printing module.

[0007] Preferably, the lifting and lowering adjustment mechanism comprises a guide column and a spring, one end of the guide column is fixed to the slider fixing plate, the other end of the guide column passes through the unit moving plate, and the spring is sleeved on the guide column between the unit moving plate and the slider fixing plate.

[0008] Preferably, the lifting and lowering adjustment mechanism includes a linear bearing seat and a guide column inner sleeve, the linear bearing seat is fixed to the unit moving plate, the guide column is fixed to the slider fixed plate through the guide column inner sleeve, the guide column passes through the linear bearing seat, and the spring is sleeved between the linear bearing seat and the guide column inner sleeve.

[0009] Preferably, a limiting portion is provided at one end of the guide column passing through the linear bearing seat, a gasket sleeved on the guide column is provided between the limiting portion and the linear bearing seat, and the limiting portion blocks the gasket from moving upward to achieve the highest limit of the printing module.

[0010] Preferably, the guide column has an external thread, and the limiting portion is specifically a second nut, which is threadably connected to the guide column to achieve the adjustability of the maximum limit.

[0011] Preferably, when the printing module is at the uppermost limit position, the spring maintains the pre-pressure.

[0012] Preferably, the lifting and lowering adjustment mechanism includes an adjusting screw and a positioning column, the adjusting screw is fixed to the unit moving plate, the positioning column is fixed to the slider fixing plate, and the positioning column blocks the adjusting screw from moving downward to achieve the lowest limit of the printing module.

[0013] Preferably, the lifting and lowering adjustment mechanism includes a first nut and a nut sleeve, the nut sleeve is fixed to the unit movable plate, the adjusting screw is fixed to the nut sleeve through the first nut, and the first nut is threadedly connected to the adjusting screw to achieve the adjustability of the minimum limit.

[0014] Preferably, the lifting and lowering adjustment mechanism comprises a floating joint fixing plate and a floating joint, the floating joint fixing plate is fixed to the slider fixing plate, the floating joint is fixed to the floating joint fixing plate, and one end of the rod body is fixed to the floating joint.

[0015] The present invention also provides a labeling machine, comprising a printing device as described in any one of the above items, wherein the labeling machine is specifically a digital inkjet printer, and the printing device comprises a first printing device having a plurality of the printing modules and a second printing device having a plurality of the printing modules, an intermediate guide beam is provided between the first printing device and the second printing device, and a left guide beam and a right guide beam are respectively provided on the outer sides of the first printing device and the second printing device.

[0016] Compared with the above-mentioned background technology, the printing device provided by the present invention includes a sliding frame, the sliding frame is loaded with a plurality of printing modules, the two sides of the sliding frame are respectively slidably assembled on a pair of guide beams, the sliding frame slides along the guide beams, and the printing module realizes mobile printing at different sliding positions; a lifting and adjusting mechanism is arranged on both sides of the sliding frame, the lifting and adjusting mechanism includes a slider fixing plate, a unit moving plate and a cylinder, the sliding frame is fixed to the unit moving plate, the slider fixing plate is provided with a slider, the slider is slidably connected with the guide beam, one end of the cylinder body of the cylinder is fixed to the unit moving plate, and one end of the rod body of the cylinder is fixed to the slider fixing plate, when the rod body is extended and retracted relative to the cylinder body, the rod body drives the unit moving plate to move relative to the slider fixing plate, and then the unit moving plate drives the sliding frame to move, and finally realizes the lifting and lowering of the printing module on the sliding frame; the printing device adopts the control method of the cylinder to realize the lifting and lowering of the printing module, which is not only height-adjustable and has a large lifting force, but also occupies a small space and has a compact structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the structure of a labeling machine provided by an embodiment of the present invention;

[0019] Figure 2 for Figure 1 A schematic diagram of a printing device;

[0020] Figure 3 for Figure 1 Schematic diagram of the lifting and lowering adjustment mechanism.

[0021] in:

[0022] 1-slider fixing plate, 2-slider, 3-guide column inner sleeve, 4-positioning column, 5-floating joint, 6-floating joint fixing plate, 7-spring, 8-unit moving plate, 9-nut sleeve, 10-first nut, 11-cylinder, 12-adjusting screw, 13-guide column, 14-linear bearing seat, 15-gasket, 16-second nut, 20-lifting adjustment mechanism, 21-middle guide beam, 22-first unit end plate, 23-left guide beam, 24-printing module, 25-right guide beam, 26-limiting block, 27-guide rail, 28-second unit end plate, 31-first printing device, 32-second printing device. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] Please refer to Figures 1 to 3 ,in, Figure 1 A schematic diagram of the structure of a labeling machine provided by an embodiment of the present invention, Figure 2 for Figure 1 Schematic diagram of the printing device, Figure 3 for Figure 1 Schematic diagram of the lifting and lowering adjustment mechanism.

[0026] In a first specific embodiment, the printing device provided by the present invention includes a sliding frame loaded with a plurality of printing modules 24, and the two sides of the sliding frame are respectively slidably assembled on a pair of guide rail beams, the guide rail beams are provided with guide rails 27, and the guide rails 27 are provided with limit blocks 26. The sliding frame can slide under the action of the guide rails 27 of the guide rail beams, thereby realizing the movement and printing of the printing module 24. In addition, the two sides of the sliding frame are provided with lifting and lowering adjustment mechanisms 20, and the function of the lifting and lowering adjustment mechanisms 20 is to realize the lifting and lowering of the printing module 24; wherein, the lifting and lowering adjustment mechanism 20 includes a slider fixing plate 1, a unit moving plate 8 and a cylinder 11, the sliding frame is fixed to the unit moving plate 8, the slider fixing plate 1 is provided with a slider 2, the slider 2 is slidably connected to the guide rail beam, one end of the cylinder body of the cylinder 11 is fixed to the unit moving plate 8, and one end of the rod body of the cylinder 11 is fixed to the slider fixing plate 1.

[0027] In this embodiment, the printing device has the function of lifting and lowering adjustment. In the lifting and lowering adjustment mechanism 20 for realizing the lifting and lowering, the rod body of the cylinder 11 is used to extend and retract relative to the cylinder body to realize the lifting and lowering of the printing module 24; specifically, when it is necessary to raise the printing module 24, the rod body of the cylinder 11 extends out, and at this time, the cylinder 11 pushes the slider fixing plate 1 to move in a direction away from the unit movable plate 8, and the sliding frame fixed as a whole with the unit movable plate 8 drives the printing module 24 to move, thereby completing the lifting of the printing module 24; when it is necessary to lower the printing module 24, the rod body of the cylinder 11 retracts, and at this time, the cylinder 11 pulls the slider fixing plate 1 to move in a direction close to the unit movable plate 8, and the sliding frame fixed as a whole with the unit movable plate 8 drives the printing module 24 to move, thereby completing the lowering of the printing module 24.

[0028] The printing device uses the control method of the cylinder 11 to realize the lifting of the printing module 24. The power source can provide greater power; not only is the height adjustable and the lifting force is large, but also the space occupied is small and the structure is compact.

[0029] On this basis, the lifting and lowering adjustment mechanism 20 includes a guide post 13 and a spring 7. The function of the guide post 13 is to limit the lifting direction of the unit movable plate 8 and the slider fixed plate 1, thereby improving the reliability and stability of the lifting movement; the function of the spring 7 is to provide a buffering and shock absorbing effect during the lifting movement, thereby improving the reliability and stability of the lifting movement. Among them, one end of the guide post 13, i.e., the lower end, is fixed to the slider fixed plate 1, and the lower end is fixed and cannot move. The other end of the guide post 13, i.e., the upper end, is penetrated by the unit movable plate 8, and the upper end is free and movable. The spring 7 is sleeved on the guide post 13 between the unit movable plate 8 and the slider fixed plate 1. When the unit movable plate 8 is close to the slider fixed plate 1, the spring 7 is compressed to buffer the violent movement and protect the printing module 24.

[0030] On this basis, the lifting and lowering adjustment mechanism 20 includes a linear bearing seat 14 and a guide column inner sleeve 3. The upper and lower ends of the guide column 13 are respectively connected to the unit movable plate 8 and the slider fixed plate 1 through the linear bearing seat 14 and the guide column inner sleeve 3; specifically, the linear bearing seat 14 is fixed to the unit movable plate 8, the guide column 13 is fixed to the guide column inner sleeve 3, the guide column 13 is fixed to the slider fixed plate 1 through the guide column inner sleeve 3, the guide column 13 is passed through the linear bearing seat 14, and the guide column 13 can move freely in the linear bearing seat 14. At this time, the spring 7 is installed between the linear bearing seat 14 and the guide column inner sleeve 3, which saves space and has a compact structure.

[0031] On this basis, the upward movement of the printing module 24 has a maximum limit; specifically, a limiting portion is provided at one end of the guide column 13 passing through the linear bearing seat 14, and a gasket 15 is provided between the limiting portion and the linear bearing seat 14 and is sleeved on the guide column 13; when the unit movable plate 8 drives the printing module 24 to move upward, the linear bearing seat 14 pushes the gasket 15 to move upward until the gasket 15 contacts the limiting portion, and the limiting portion prevents the gasket 15 from continuing to move. At this time, the gasket 15, the linear bearing seat 14, the unit movable plate 8 and the printing module 24 are stationary, and the printing module 24 is at the maximum limit.

[0032] On this basis, the maximum limit is adjustable; specifically, the end of the guide column 13 has an external thread, and the limiting part is specifically a second nut 16, which is threadedly connected to the guide column 13. By screwing the second nut 16, the position of the second nut 16 along the guide column 13 can be adjusted, thereby achieving adjustable position of the maximum limit.

[0033] It should be noted that when the printing module 24 is at the highest limit, the spring 7 maintains the pre-pressure. When the printing module 24 is at the highest position, the spring 7 must have a certain pre-pressure, so that the spring 7 always maintains the pre-pressure. When the cylinder 11 is without air source, due to the action of the spring 7, there is a certain safety distance between the printing module 24 and the printed object, which plays a protective role.

[0034] In addition, the downward movement of the printing module 24 has a minimum limit; specifically, the lifting and adjusting mechanism 20 includes an adjusting screw 12 and a positioning column 4, the adjusting screw 12 is fixed to the unit movable plate 8, the positioning column 4 is fixed to the slider fixing plate 1, and the positioning column 4 is located directly below the adjusting screw 12; when the unit movable plate 8 drives the printing module 24 to move downward, the adjusting screw 12 moves downward toward the positioning column 4 until the adjusting screw 12 contacts the positioning column 4, and the positioning column 4 blocks the adjusting screw 12 from continuing to move. At this time, the adjusting screw 12, the unit movable plate 8 and the printing module 24 are stationary, and the printing module 24 is at the minimum limit.

[0035] Furthermore, the positioning column 4 and the nut sleeve 9 reserve a position for installing the spring 7, which is convenient for increasing the number of springs 7. At this time, the spring 7 is not only arranged between the linear bearing seat 14 and the guide column inner sleeve 3, but also arranged between the positioning column 4 and the nut sleeve 9, which has a better buffering and shock absorbing effect.

[0036] On this basis, the minimum limit is adjustable; specifically, the lifting and lowering adjustment mechanism 20 includes a first nut 10 and a nut sleeve 9, the nut sleeve 9 is fixed to the unit moving plate 8, the adjusting screw 12 is fixed to the nut sleeve 9 through the first nut 10, and the first nut 10 is threadedly connected to the adjusting screw 12. By screwing the first nut 10, the length of the adjusting screw 12 extending downward can be adjusted, thereby realizing the adjustability of the minimum limit.

[0037] In a specific embodiment, the lifting and lowering adjustment mechanism 20 includes a floating joint fixing plate 6 and a floating joint 5 , the floating joint fixing plate 6 is fixed to the slider fixing plate 1 , the floating joint 5 is fixed to the floating joint fixing plate 6 , and one end of the rod body is fixed to the floating joint 5 .

[0038] The present invention also provides a labeling machine having a printing function, including the above-mentioned printing device. The labeling machine is specifically a digital inkjet printer. The printing device includes a first printing device 31 having a plurality of printing modules 24 and a second printing device 32 having a plurality of printing modules 24. An intermediate guide beam 21 is provided between the first printing device 31 and the second printing device 32. A left guide beam 23 and a right guide beam 25 are respectively provided on the outer sides of the first printing device 31 and the second printing device 32.

[0039] Specifically, the first printing device 31 and the second printing device 32 serve as two printing units of the label machine and have higher printing efficiency; the first printing device 31 has two printing modules 24, and the second printing device 32 has six printing modules 24. The left and right sides of the first unit end plate 22 of the sliding frame of the first printing device 31 are respectively slidably assembled on the guide rails 27 of the left guide beam 23 and the middle guide beam 21, and the left and right sides of the second unit end plate 28 of the sliding frame of the second printing device 32 are respectively slidably assembled on the guide rails 27 of the middle guide beam 21 and the right guide beam 25.

[0040] In the specific process, when the printing module 24 moves downward, the rod of the cylinder 11 retracts, the spring 7 is compressed, and the unit movable plate 8 descends. When it reaches the printing position, which is the lowest limit, the bottom of the adjusting screw 12 contacts the positioning column 4, and the lowest limit can be adjusted by screwing the first nut 10; when the printing module 24 moves upward, the rod of the cylinder 11 extends, the spring 7 rebounds upward but always maintains the pre-pressure, and the unit movable plate 8 rises. When it reaches the highest limit, the gasket 15 contacts the second nut 16, and the highest limit can be adjusted by screwing the second nut 16; at this time, the height of the printing module 24 can be adjusted up and down.

[0041] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0042] The above is a detailed introduction to the printing device and label machine provided by the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core ideas of the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified in a number of ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A printing device, comprising a sliding frame loaded with a plurality of printing modules (24), wherein two sides of the sliding frame are respectively slidably mounted on a pair of guide rail beams, characterized in that: The guide rail beam is provided with a guide rail (27), the guide rail (27) is provided with a limit block (26), the sliding frame can slide under the action of the guide rail (27), and lifting adjustment mechanisms (20) are provided on both sides of the sliding frame, the lifting adjustment mechanism (20) comprises a slider fixing plate (1), a unit movable plate (8) and a cylinder (11), the sliding frame is fixed to the unit movable plate (8), the slider fixing plate (1) is provided with a slider (2) slidably connected to the guide rail beam, one end of the cylinder body of the cylinder (11) is fixed to the unit movable plate (8), one end of the rod body of the cylinder (11) is fixed to the slider fixing plate (1), and the rod body is telescopic relative to the cylinder body to realize the lifting and lowering of the printing module (24); The lifting and lowering adjustment mechanism (20) comprises a guide column (13) and a spring (7); one end of the guide column (13) is fixed to the slider fixing plate (1); the other end of the guide column (13) passes through the unit moving plate (8); and the spring (7) is sleeved on the guide column (13) between the unit moving plate (8) and the slider fixing plate (1); The lifting and lowering adjustment mechanism (20) comprises a linear bearing seat (14) and a guide column inner sleeve (3), wherein the linear bearing seat (14) is fixed to the unit movable plate (8), the guide column (13) is fixed to the slider fixed plate (1) via the guide column inner sleeve (3), the guide column (13) passes through the linear bearing seat (14), and the spring (7) is sleeved between the linear bearing seat (14) and the guide column inner sleeve (3); A limiting portion is provided at one end of the guide column (13) passing through the linear bearing seat (14), a gasket (15) sleeved on the guide column (13) is provided between the limiting portion and the linear bearing seat (14), the limiting portion blocks the gasket (15) from moving upward to achieve the highest limit of the printing module (24), and the position of the highest limit is adjustable; The lifting and lowering adjustment mechanism (20) comprises an adjusting screw (12) and a positioning column (4), wherein the adjusting screw (12) is fixed to the unit movable plate (8), and the positioning column (4) is fixed to the slider fixing plate (1), and the positioning column (4) blocks the adjusting screw (12) from moving downward to achieve the lowest limit position of the printing module (24), and the position of the lowest limit position is adjustable.

2. The printing device according to claim 1, characterized in that: The guide column (13) has an external thread, and the limiting portion is specifically a second nut (16). The second nut (16) is threadedly connected to the guide column (13) to achieve the adjustability of the upper limit.

3. The printing device according to claim 1, characterized in that: When the printing module (24) is at the upper limit position, the spring (7) maintains the pre-pressure.

4. The printing device according to any one of claims 1 to 3, characterized in that: The lifting and lowering adjustment mechanism (20) comprises a first nut (10) and a nut sleeve (9); the nut sleeve (9) is fixed to the unit movable plate (8); the adjusting screw (12) is fixed to the nut sleeve (9) via the first nut (10); the first nut (10) and the adjusting screw (12) are threadedly connected to achieve the adjustability of the lowest limit position.

5. The printing device according to any one of claims 1 to 3, characterized in that: The lifting and lowering adjustment mechanism (20) comprises a floating joint fixing plate (6) and a floating joint (5), wherein the floating joint fixing plate (6) is fixed to the slider fixing plate (1), the floating joint (5) is fixed to the floating joint fixing plate (6), and one end of the rod body is fixed to the floating joint (5).

6. A labeling machine, characterized in that: The invention comprises a printing device according to any one of claims 1 to 5, wherein the label machine is specifically a digital inkjet printer, the printing device comprises a first printing device (31) having a plurality of the printing modules (24) and a second printing device (32) having a plurality of the printing modules (24), an intermediate guide rail beam (21) is provided between the first printing device (31) and the second printing device (32), and a left guide rail beam (23) and a right guide rail beam (25) are provided on the outer sides of the first printing device (31) and the second printing device (32), respectively.

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