Printing machine capable of achieving automatic turning-over of printing paperboard

Abstract

The utility model relates to the technical field of printing machines, in particular to a printing machine capable of achieving automatic turning-over of a printing paperboard, which comprises a machine frame, an installation frame is fixedly installed inside the machine frame, the top end of the installation frame is connected with a lifting frame in a sliding mode, and a first air cylinder is fixedly installed on the top of the machine frame. The driving end of the first air cylinder is fixedly connected with the top of the lifting frame, a printing screen plate is fixedly installed at the bottom of the front end of the lifting frame, a second air cylinder is fixedly installed at the rear end of the top of the lifting frame, a connecting frame is fixedly installed at the driving end of the second air cylinder, and a printing scraping plate is movably installed at the front end of the connecting frame; compared with an existing printing machine, through the design, a paperboard can be adjusted and positioned in the printing process, the printing quality is guaranteed, the printing process is convenient and fast, the printing efficiency is effectively improved, meanwhile, the number of times of contact between workers and the printing machine can be reduced, and the operation safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing machines, in particular to a printing machine capable of realizing automatic turning over of printed paperboards. Background Art

[0002] Corrugated cardboard is a multi-layer adhesive body, which consists of at least a layer of wavy core paper interlayer (commonly known as "corrugated sheet", "corrugated paper", "corrugated core paper", "corrugated paper core", "corrugated base paper") and a layer of cardboard (also known as "box board", "box board"). It has high mechanical strength and can withstand collisions and falls during transportation. The actual performance of corrugated cardboard depends on three factors: the characteristics of the core paper and cardboard and the structure of the carton itself. In order to enhance the aesthetics of the corrugated paper, the corrugated paper used for packaging needs to be printed on its surface using a printing press during production.

[0003] Most existing printing machines are single-sided printing structures, and the cardboard printing process requires manual flipping of the cardboard. The manual flipping method not only increases the workload of the staff, but also increases the number of times the staff come into contact with the printing machine, increasing the risk of accidents to the staff.

[0004] Therefore, it is particularly important to design a printing press that can realize automatic flipping of printed cardboard to solve the above-mentioned defects. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model designs a printing press that can realize automatic flipping of printed cardboard. The printing press aims to solve the technical problem that the manual flipping of cardboard during printing and plate making under the existing technology not only increases the workload of the staff, but also increases the number of times the staff come into contact with the printing press, thereby increasing the risk of accidents for the staff.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] The top of the movable frame is rotatably connected to the movable frame, and the top of the movable frame is fixedly mounted on the movable frame.

[0008] The flipping mechanism includes a support frame fixedly mounted on the top of the moving platform, a third cylinder fixedly mounted on the front end of the top of the support frame, a gear plate slidably connected to the rear end of the top of the support frame, a driving end of the third cylinder fixedly connected to the left end of the gear plate through a connecting plate, a rotating shaft rotatably connected to the back side of the top end of the support frame, the front end of the rotating shaft meshes with the gear plate through a transmission gear, and a clamping cylinder fixedly mounted on the rear end of the rotating shaft.

[0009] As a preferred solution of the present invention, sliding rods are fixedly installed on both the left and right ends of the connecting frame, and the two groups of sliding rods are slidably connected to the lifting frame through sliding sleeves.

[0010] As a preferred solution of the present invention, a movable frame is fixedly installed on the top of the printing scraper, and the left and right ends of the top of the movable frame are slidably connected with connecting columns. The top ends of the two groups of connecting columns are threadedly connected to the connecting frame, and the outer sides of the two groups of connecting columns are sleeved with buffer springs.

[0011] As a preferred solution of the present invention, the left and right ends of the bottom of the movable frame are slidably connected to the mounting frame through the first slide rail, and a fourth cylinder is fixedly installed on the left end of the top of the movable frame, and the driving end of the fourth cylinder is fixedly connected to the mounting frame through the top plate.

[0012] As a preferred solution of the present invention, the rear end of the top of the movable frame is rotatably connected to a fifth cylinder, and the driving end of the fifth cylinder is rotatably connected to the rear end of the bottom of the positioning platform.

[0013] As a preferred solution of the present invention, a first positioning plate is fixedly installed on the rear end of the top of the positioning platform, a sixth cylinder is fixedly installed on the left and right ends of the top of the positioning platform, and a second positioning plate is fixedly installed on the driving ends of the two groups of the sixth cylinders.

[0014] As a preferred solution of the present invention, the left and right ends of the bottom of the movable platform are slidably connected to the mounting plate through a second guide rail, a motor is fixedly installed on the front end of the top of the movable platform, a threaded rod is fixedly installed on the driving end of the motor, and the outer side of the threaded rod is threadedly connected to the bottom of the movable platform through a connecting seat.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. In the present invention, through the coordinated design of the mounting frame and the positioning platform, when printing on a cardboard, the cardboard is first placed on the positioning platform for printing on the top of the cardboard, and the rear end of the cardboard is supported by the first positioning plate. Subsequently, the two groups of sixth cylinders are started to position the left and right ends of the cardboard using the second positioning plate, thereby firmly positioning the cardboard to avoid displacement during printing. The top plate is pushed by the fourth cylinder, and the movable frame is driven to move under the reaction force, so that the position of the cardboard on the positioning platform can be adjusted according to the printing position, thereby ensuring the printing quality.

[0017] 2. In the utility model, through the coordinated design of the movable table and the turning mechanism, after printing on one side of the cardboard is completed, the support frame is moved backward so that the clamping cylinder is close to the front end of the cardboard, and then the front end of the cardboard is clamped by the clamping cylinder, and then the support frame is moved forward so that the clamping cylinder takes the cardboard out of the positioning table, and then the third cylinder is started to push the tooth plate to move left, and the rotating shaft is driven by the transmission gear to rotate, and the clamping cylinder is driven to rotate 180 degrees, so as to automatically turn the cardboard over, and then the cardboard is moved backward to be placed on the positioning table to print on the other side of the cardboard. This not only conveniently and quickly and effectively improves the printing efficiency, but also can avoid the number of times the staff touches the printing machine, thereby improving the safety of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the back structure of the frame of the utility model;

[0020] Figure 3 This is a three-dimensional diagram of the mounting frame structure of the utility model;

[0021] Figure 4 This is a side view of the mounting frame structure of the utility model;

[0022] Figure 5 It is a schematic diagram of the structure of the turning mechanism of the utility model.

[0023] In the figure: 1, frame; 2, mounting frame; 3, lifting frame; 4, first cylinder; 5, printing screen; 6, second cylinder; 7, connecting frame; 701, slide bar; 702, sliding sleeve; 8, printing scraper; 801, movable frame; 802, connecting column; 803, buffer spring; 9, moving frame; 901, first slide rail; 902, fourth cylinder; 903, top plate; 904, fifth cylinder; 10, positioning table; 1001, first Positioning plate; 1002, sixth cylinder; 1003, second positioning plate; 11, mounting plate; 12, moving platform; 1201, second guide rail; 1202, motor; 1203, threaded rod; 1204, connecting seat; 13, flipping mechanism; 1301, support frame; 1302, third cylinder; 1303, gear plate; 1304, connecting plate; 1305, rotating shaft; 1306, transmission gear; 1307, gripper cylinder. DETAILED DESCRIPTION

[0024] The following will combine 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, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] Example:

[0026] See also Figure 1-Figure 5 , the utility model provides a technical solution:

[0027] A printing press that can realize automatic flipping of printed cardboard includes a frame 1, a mounting frame 2 is fixedly installed inside the frame 1, the top of the mounting frame 2 is slidably connected to a lifting frame 3, a first cylinder 4 is fixedly installed on the top of the frame 1, and the driving end of the first cylinder 4 is fixedly connected to the top of the lifting frame 3, a printing screen 5 is fixedly installed at the bottom of the front end of the lifting frame 3, a second cylinder 6 is fixedly installed at the rear end of the top of the lifting frame 3, a connecting frame 7 is fixedly installed on the driving end of the second cylinder 6, a printing scraper 8 is movably installed at the front end of the connecting frame 7, the bottom end of the mounting frame 2 is slidably connected to a moving frame 9, the top of the moving frame 9 is rotatably connected to a positioning platform 10, a mounting plate 11 is fixedly installed at the bottom end of the front face of the frame 1, the top of the mounting plate 11 is slidably connected to a moving platform 12, and a flipping mechanism 13 is fixedly installed on the top of the moving platform 12.

[0028] First, in this embodiment, the specific structure of the turning mechanism 13 is as follows:

[0029] The flipping mechanism 13 includes a support frame 1301 fixedly mounted on the top of the movable table 12, a third cylinder 1302 fixedly mounted on the front end of the top of the support frame 1301, a tooth plate 1303 slidably connected to the rear end of the top of the support frame 1301, a driving end of the third cylinder 1302 fixedly connected to the left end of the tooth plate 1303 through a connecting plate 1304, a rotating shaft 1305 is rotatably connected to the back of the top of the support frame 1301, the front end of the rotating shaft 1305 is meshed with the tooth plate 1303 through a transmission gear 1306, and a clamping cylinder 1307 is fixedly mounted on the rear end of the rotating shaft 1305. When printing on the cardboard, the cardboard is first placed on the positioning table 10 to print on the top of the cardboard. After printing on one side of the cardboard is completed, it moves backward. The support frame 1301 allows the clamping cylinder 1307 to approach the front end of the cardboard, and then the clamping cylinder 1307 is used to clamp the front end of the cardboard, and then the support frame 1301 is moved forward to allow the clamping cylinder 1307 to take the cardboard out from the positioning platform 10, and then the third cylinder 1302 is started to push the tooth plate 1303 to move to the left, and the transmission gear 1306 drives the rotating shaft 1305 to rotate, driving the clamping cylinder 1307 to rotate one hundred and eighty degrees, thereby automatically turning the cardboard over, and then moving backward to place the cardboard on the positioning platform 10 to print on the other side of the cardboard. This not only conveniently and quickly and effectively improves printing efficiency, but also avoids the number of times the staff touches the printing machine, thereby improving the safety of operation.

[0030] Furthermore, sliding rods 701 are fixedly installed on both ends of the connecting frame 7. Both sets of sliding rods 701 are slidably connected to the lifting frame 3 through sliding sleeves 702. When printing on the cardboard, the first cylinder 4 is started to lower the lifting frame 3, and then the second cylinder 6 is started to push the connecting frame 7. Under the sliding connection between the sliding rods 701 and the sliding sleeves 702, the connecting frame 7 is stably driven to move, so that the printing scraper 8 pushes the printing ink on the inside of the printing screen 5 to print on the top of the cardboard.

[0031] Then, a movable frame 801 is fixedly installed on the top of the printing scraper 8, and the left and right ends of the top of the movable frame 801 are slidably connected with connecting columns 802. The top ends of the two groups of connecting columns 802 are threadedly connected to the connecting frame 7, and the outer sides of the two groups of connecting columns 802 are sleeved with buffer springs 803. When the printing scraper 8 prints on the cardboard, the movable frame 801 is slidably connected to the connecting columns 802. Under the action of the buffer springs 803, the printing scraper 8 can perform flexible printing, avoiding damage caused by excessive force when the printing scraper 8 prints on the cardboard, thereby ensuring the quality of printing.

[0032] Furthermore, the left and right ends of the bottom of the movable frame 9 are slidably connected to the mounting frame 2 through the first slide rail 901, and the fourth cylinder 902 is fixedly installed on the left end of the top of the movable frame 9. The driving end of the fourth cylinder 902 is fixedly connected to the mounting frame 2 through the top plate 903. When printing on the cardboard, the fourth cylinder 902 is used to push the top plate 903, and the movable frame 9 is driven to move under the reaction force, so that the position of the cardboard on the positioning table 10 can be adjusted according to the printing position, thereby further ensuring the printing quality.

[0033] Among them, the rear end of the top of the movable frame 9 is rotatably connected to the fifth cylinder 904, and the driving end of the fifth cylinder 904 is rotatably connected to the rear end of the bottom of the positioning platform 10. After the printing of both sides of the last cardboard is completed, the fifth cylinder 904 is started to push up the rear end of the positioning platform 10, so that the positioning platform 10 is tilted and the cardboard slides out to facilitate the staff to take the material.

[0034] Secondly, a first positioning plate 1001 is fixedly installed at the rear end of the top of the positioning platform 10, and a sixth cylinder 1002 is fixedly installed at the left and right ends of the top of the positioning platform 10. A second positioning plate 1003 is fixedly installed on the driving end of the two groups of sixth cylinders 1002. When the cardboard is placed on the top of the positioning platform 10 for printing, the rear end of the cardboard is supported by the first positioning plate 1001, and then the two groups of sixth cylinders 1002 are started to position the left and right ends of the cardboard using the second positioning plate 1003, so that the cardboard is firmly positioned to avoid displacement during printing, thereby further ensuring the printing quality.

[0035] Finally, the left and right ends of the bottom of the movable platform 12 are slidably connected to the mounting plate 11 through the second guide rail 1201. A motor 1202 is fixedly installed on the front end of the top of the movable platform 12. A threaded rod 1203 is fixedly installed on the driving end of the motor 1202, and the outer side of the threaded rod 1203 is threadedly connected to the bottom of the movable platform 12 through the connecting seat 1204. When the cardboard is turned over, the motor 1202 is started to drive the threaded rod 1203 to rotate, and the movable platform 12 is driven to move under the connection of the connecting seat 1204, thereby driving the clamping cylinder 1307 to automatically pick up and place the cardboard for turning over, thereby effectively improving the printing efficiency.

[0036] In this embodiment, the implementation scenario is specifically as follows: when printing on a cardboard, the cardboard is first placed on the positioning table 10 to print on the top of the cardboard, the rear end of the cardboard is held against by the first positioning plate 1001, and then the two groups of sixth cylinders 1002 are started to use the second positioning plate 1003 to position the left and right ends of the cardboard, so that the cardboard is firmly positioned to avoid displacement during printing, and the top plate 903 is pushed by the fourth cylinder 902, and the movable frame 9 is driven to move under the reaction force, so that the position of the cardboard on the positioning table 10 can be adjusted according to the printing position, the first cylinder 4 is started to lower the lifting frame 3, and then the second cylinder 6 is started to push the connecting frame 7, and the connecting frame 7 is stably driven to move under the sliding connection between the slide rod 701 and the sliding sleeve 702, so that the printing scraper 8 pushes the printing ink on the inner side of the printing screen 5 to print on the top of the cardboard. After printing on one side of the cardboard is completed, the support frame 1301 is moved backward so that the clamping cylinder 1307 is close to the front end of the cardboard, and then the clamping claw is used to press the cardboard. The cylinder 1307 clamps the front end of the cardboard, and then moves the support frame 1301 forward so that the clamping claw cylinder 1307 takes the cardboard out of the positioning platform 10, and then starts the third cylinder 1302 to push the tooth plate 1303 to move to the left, and drives the rotating shaft 1305 to rotate under the transmission of the transmission gear 1306, driving the clamping claw cylinder 1307 to rotate 180 degrees, thereby automatically turning the cardboard over, and then moves backward to place the cardboard on the positioning platform 10 to print the other side of the cardboard. After the printing of both sides of the last cardboard is completed, the fifth cylinder 904 is started to push up the rear end of the positioning platform 10, so that the positioning platform 10 is tilted and the cardboard slides out to facilitate the staff to take the material. The whole operation process is simple and convenient. Compared with the existing printing press, the utility model can adjust and position the cardboard during printing through design, thereby ensuring the printing quality. The printing process is not only convenient, fast and effective, but also improves the printing efficiency. At the same time, it can avoid the number of contacts between the staff and the printing press, thereby improving the safety of operation.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A printing press capable of automatically turning over printed cardboard, comprising a frame (1), characterized in that: The frame (1) is fixedly provided with a mounting frame (2), the top of the mounting frame (2) is slidably connected to a lifting frame (3), the top of the frame (1) is fixedly provided with a first cylinder (4), and the driving end of the first cylinder (4) is fixedly connected to the top of the lifting frame (3), the bottom of the front end of the lifting frame (3) is fixedly provided with a printing screen (5), the rear end of the top of the lifting frame (3) is fixedly provided with a second cylinder (6), the driving end of the second cylinder (6) is fixedly provided with a connecting frame (7), the front end of the connecting frame (7) is movably provided with a printing scraper (8), the bottom end of the mounting frame (2) is slidably connected to a moving frame (9), the top of the moving frame (9) is rotatably connected to a positioning platform (10), the bottom end of the front face of the frame (1) is fixedly provided with a mounting plate (11), the top of the mounting plate (11) is slidably connected to a moving platform (12), and the top of the moving platform (12) is fixedly provided with a turning mechanism (13); The left and right ends of the bottom of the movable platform (12) are both slidably connected to the mounting plate (11) via a second guide rail (1201); a motor (1202) is fixedly mounted on the front end of the top of the movable platform (12); a threaded rod (1203) is fixedly mounted on the driving end of the motor (1202); and the outer side of the threaded rod (1203) is threadedly connected to the bottom of the movable platform (12) via a connecting seat (1204); The flipping mechanism (13) comprises a support frame (1301) fixedly mounted on the top of the movable platform (12); a third cylinder (1302) is fixedly mounted on the front end of the top of the support frame (1301); a tooth plate (1303) is slidably connected to the rear end of the top of the support frame (1301); a driving end of the third cylinder (1302) is fixedly connected to the left end of the tooth plate (1303) via a connecting plate (1304); a rotating shaft (1305) is rotatably connected to the back end of the top of the support frame (1301); a front end of the rotating shaft (1305) is meshed with the tooth plate (1303) via a transmission gear (1306); and a clamping cylinder (1307) is fixedly mounted on the rear end of the rotating shaft (1305).

2. A printing press capable of automatically turning over printed cardboard according to claim 1, characterized in that: Slide rods (701) are fixedly mounted on both left and right ends of the connecting frame (7), and both sets of the slide rods (701) are slidably connected to the lifting frame (3) via sliding sleeves (702).

3. The printing press capable of automatically turning over printed cardboard according to claim 1, characterized in that: A movable frame (801) is fixedly mounted on the top of the printing scraper (8), and connecting columns (802) are slidably connected to the left and right ends of the top of the movable frame (801). The top ends of the two groups of connecting columns (802) are threadedly connected to the connecting frame (7), and the outer sides of the two groups of connecting columns (802) are sleeved with buffer springs (803).

4. The printing press capable of automatically turning over printed cardboard according to claim 1, characterized in that: The left and right ends of the bottom of the movable frame (9) are both slidably connected to the mounting frame (2) via a first slide rail (901); a fourth cylinder (902) is fixedly mounted on the left end of the top of the movable frame (9); and a driving end of the fourth cylinder (902) is fixedly connected to the mounting frame (2) via a top plate (903).

5. The printing press capable of automatically turning over printed cardboard according to claim 1, characterized in that: The rear end of the top of the movable frame (9) is rotatably connected to a fifth cylinder (904), and the driving end of the fifth cylinder (904) is rotatably connected to the rear end of the bottom of the positioning platform (10).

6. The printing press capable of automatically turning over printed cardboard according to claim 1, characterized in that: A first positioning plate (1001) is fixedly mounted on the rear end of the top of the positioning platform (10), a sixth air cylinder (1002) is fixedly mounted on both the left and right ends of the top of the positioning platform (10), and a second positioning plate (1003) is fixedly mounted on the driving ends of the two groups of the sixth air cylinders (1002).

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