Letterpress printing device

Abstract

The utility model discloses a letterpress printing device which comprises a letterpress printing machine. The letterpress printing machine has the advantages that due to the fact that the second hydraulic cylinder, the adjusting support and the guide roller are arranged, printing film materials are guided and conveyed through the guide roller, winding is conducted through the winding roller, and the printing film materials are conveyed through the adjusting support and the guide roller. The height positions of an adjusting support and a guide roller are adjusted through the output end of a second hydraulic cylinder, the tightness degree of a film material below the guide roller during conveying is adjusted, a two-way lead screw, limiting sliding blocks and a film cutting knife are arranged, the symmetrical limiting sliding blocks on the outer side are driven to move when the two-way lead screw rotates, and the film material conveying efficiency is improved. When the limiting sliding blocks move, the film cutting knives at the bottom of the supporting bottom box are driven to move, the distance between the two film cutting knives is adjusted, and therefore edge cutting is conducted on the letterpress printing film materials through the film cutting knives, and cutting treatment is conducted on the film materials in the conveying process according to the width requirement.

Description

Technical Field

[0001] The utility model relates to the technical field of relief printing, in particular to a relief printing device. Background Technique

[0002] Relief printing is an important printing technology. It uses a relief plate (i.e., a printing plate with raised graphic parts) for printing, abbreviated as relief printing. Relief printing is a general term for any modern relief printing production method. It attaches formed or structured printing elements (such as natural, artificial, molded, combined or engraved) to the plate. After inking, the ink on the graphic part is transferred to the substrate under a certain pressure to complete the printing. Relief printing has certain applications in the field of film printing, especially on some specific film materials. However, after printing, the coiled film material needs to be transported to an independent machine knife for cutting, which requires special operators for separate cutting, and it does not have the function of cutting the printed film during relief printing. Content of the Utility Model

[0003] The purpose of the utility model is to provide a relief printing device to solve the problem that after printing, the coiled film material needs to be transported to an independent machine knife for cutting, which requires special operators for separate cutting, and it does not have the function of cutting the printed film during relief printing as mentioned in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: a relief printing device, including:

[0005] A relief printing machine;

[0006] A first support side seat, which is arranged on one side of the relief printing machine;

[0007] A support top frame, which is symmetrically arranged on the top of the first support side seat;

[0008] A fixed side plate, which is arranged on one side of the support top frame;

[0009] A first hydraulic cylinder, which is installed on the top of the fixed side plate;

[0010] A support bottom box, which is arranged at the output end of the first hydraulic cylinder;

[0011] A film cutting knife, which is symmetrically and slidably arranged at the bottom of the support bottom box;

[0012] An adjusting bracket, which is slidably arranged inside the support top frame, and a guiding roller is rotatably arranged inside the adjusting bracket.

[0013] As a preferred embodiment of the present utility model: It further includes a fixed inner plate, which is fixedly connected to the inner side of the support top frame. A second hydraulic cylinder is installed at the bottom of the fixed inner plate, and the output end of the second hydraulic cylinder is fixedly connected to the adjustment bracket. Two limit sliding rods are symmetrically and slidably arranged inside the fixed inner plate, and the top ends of the two limit sliding rods are fixedly connected to the adjustment bracket.

[0014] As a preferred embodiment of the present utility model: A bidirectional lead screw is rotatably arranged inside the support bottom box. Symmetrically threaded connections are arranged on the outer side of the bidirectional lead screw with limit sliders, and the limit sliders are slidably connected to the support bottom box. A first motor is installed on one side of the support bottom box, and the output end of the first motor is fixedly connected to the bidirectional lead screw. The bottom of the limit slider is fixedly connected to the film cutting knife.

[0015] As a preferred embodiment of the present utility model: Two first limit sliding rods are symmetrically and slidably arranged inside the fixed side plate, and the bottom ends of the two first limit sliding rods are fixedly connected to the support bottom box.

[0016] As a preferred embodiment of the present utility model: A second support side seat is fixedly connected to the side of the first support side seat away from the letterpress printing machine. A fixed top frame is fixedly connected to the top of the second support side seat. A winding roller is rotatably arranged inside the fixed top frame. A second motor is installed on one side of the fixed top frame, and the output end of the second motor is fixedly connected to the winding roller.

[0017] As a preferred embodiment of the present utility model: A support top plate is fixedly connected to the top of the support top frame, and the bottom of the support top plate is fixedly connected to the fixed side plate.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows: By setting the second hydraulic cylinder, the adjustment bracket and the guide roller, the present utility model realizes the guiding and conveying of the printed film material by the guide roller, and the winding by the winding roller. The height position of the adjustment bracket and the guide roller is adjusted by the output end of the second hydraulic cylinder to adjust the tightness of the film material during the conveying below the guide roller. By setting the bidirectional lead screw, the limit slider and the film cutting knife, when the bidirectional lead screw rotates, it drives the symmetric limit sliders on the outer side to move. When the limit slider moves, it drives the film cutting knife at the bottom of the support bottom box to move, so as to adjust the distance between the two film cutting knives, and thus cut the edges of the film material for letterpress printing and cut the film material during the conveying according to the width requirements. Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 It is a front view of the present utility model;

[0021] Figure 3This is the right side view of the second support side seat of the utility model;

[0022] Figure 4 This is the schematic diagram of the internal structure of the support bottom box of the utility model.

[0023] In the figure: 1. Letterpress printing machine; 2. First support side seat; 3. Second support side seat; 4. Support top frame; 5. Support top plate; 6. Fixed side plate; 7. First hydraulic cylinder; 8. Limit slider; 9. First limit slide bar; 10. Bidirectional lead screw; 11. First motor; 12. Film cutting knife; 13. Support bottom box; 14. Fixed top frame; 15. Rewinding roller; 16. Second motor; 17. Fixed inner plate; 18. Second hydraulic cylinder; 19. Adjusting bracket; 20. Second limit slide bar; 21. Guide roller. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1 to 4 , the present utility model provides a technical solution: A letterpress printing device, comprising: a letterpress printing machine 1; a first support side seat 2 is fixedly connected to one side of the letterpress printing machine 1; support top frames 4 are symmetrically fixedly connected to the top of the first support side seat 2; a fixed side plate 6 is fixedly connected to one side of the support top frame 4; a first hydraulic cylinder 7 is installed on the top of the fixed side plate 6; a support bottom box 13 is fixedly connected to the output end of the first hydraulic cylinder 7; film cutting knives 12 are symmetrically and slidably arranged at the bottom of the support bottom box 13; an adjusting bracket 19 is slidably arranged inside the support top frame 4, and a guide roller 21 is rotatably arranged inside the adjusting bracket 19;

[0026] The letterpress printing machine 1 mainly includes the following key components:

[0027] Plate cylinder: It directly prints patterns or texts on the printing substrate. The patterns or texts on the plate cylinder are convex so as to transfer ink during printing;

[0028] Ink roller: It is responsible for evenly coating the ink on the convex part of the plate cylinder. It ensures the sufficient and uniform distribution of the ink so that it can be effectively transferred to the printing substrate during printing;

[0029] Imprinting roller: By contacting the printing substrate and applying appropriate pressure, it transfers the ink on the plate cylinder to the printing substrate, thus completing the printing process;

[0030] Printing material: As the printing substrate, it receives the ink transferred from the plate cylinder through the impression cylinder, thereby presenting the required pattern or text;

[0031] Film feeding device: The film feeding device is responsible for transporting the film material to be printed to the printing position;

[0032] Ink cartridge: It is a container for storing ink and provides the required ink for the printing process.

[0033] It can be understood that the present utility model performs relief printing on the film material through the relief printing press 1. A film unwinding roller is installed on one side of the relief printing press 1, and the film material to be relief printed is unwound through the film unwinding roller and enters the relief printing press 1 for printing. After printing, it is guided by the guide roller 21, and the film material is wound by the winding roller 15. The output end of the second motor 16 drives the winding roller 15 to rotate to complete the winding. The output end of the first motor 11 drives the bidirectional lead screw 10 to rotate. When the bidirectional lead screw 10 rotates, it drives the outer limit slider 8 to move. When the limit slider 8 moves, it drives the cutting knife 12 at the bottom of the support base box 13 to adjust its position, and adjusts the distance between the two cutting knives 12. The distance between the two cutting knives 12 is adjusted according to the required width of the film material. The wound film material is cut by the cutting knife 12. The output end of the second hydraulic cylinder 18 drives the adjustment bracket 19 to adjust its height position. When the height position of the adjustment bracket 19 is adjusted, it drives the inner guide roller 21 to adjust its height position, thereby adjusting the tightness of the film material during downward transportation through the guide roller 21. The output end of the first hydraulic cylinder 7 drives the support base box 13 to adjust its height position, thereby adjusting the height position of the cutting knife 12 at the bottom of the support base box 13 and adjusting the position of the cutting knife 12.

[0034] Please refer to Figures 1 to 3 , and it further includes a fixed inner plate 17. The fixed inner plate 17 is fixedly connected to the inside of the support top frame 4. A second hydraulic cylinder 18 is installed at the bottom of the fixed inner plate 17. The output end of the second hydraulic cylinder 18 is fixedly connected to the adjustment bracket 19. Second limit slide bars 20 are symmetrically and slidably arranged inside the fixed inner plate 17. The top ends of the second limit slide bars 20 are fixedly connected to the adjustment bracket 19.

[0035] It can be understood that the present utility model drives the adjustment bracket 19 to adjust its height position through the output end of the second hydraulic cylinder 18. When the height position of the adjustment bracket 19 is adjusted, it drives the bottom second limit slide bar 20 to move. The second limit slide bar 20 is limited and slides inside the fixed inner plate 17 to adjust the height positions of the adjustment bracket 19 and the guide roller 21 and adjust the tightness of the transported film material.

[0036] Please refer to Figures 1 to 4, a bidirectional lead screw 10 is rotatably arranged inside the supporting bottom box 13. Symmetrically threaded connections are provided on the outer side of the bidirectional lead screw 10 with limit sliders 8. The limit sliders 8 are slidably connected to the supporting bottom box 13. A first motor 11 is installed on one side of the supporting bottom box 13. The output end of the first motor 11 is fixedly connected to the bidirectional lead screw 10. The bottom of the limit slider 8 is fixedly connected to the film cutting knife 12.

[0037] It can be understood that in the present utility model, the output end of the first motor 11 drives the bidirectional lead screw 10 to rotate. When the bidirectional lead screw 10 rotates, the position of the limit slider 8 on the outer side is adjusted. When the limit slider 8 moves, it drives the film cutting knife 12 at the bottom of the supporting bottom box 13 to move and adjust, so as to adjust the distance between the two film cutting knives 12 and perform trimming according to the width of the film material to be cut.

[0038] Please refer to Figures 1 to 4 , inside the fixed side plate 6, first limit sliding rods 9 are symmetrically and slidably arranged. The bottom ends of the first limit sliding rods 9 are fixedly connected to the supporting bottom box 13.

[0039] It can be understood that in the present utility model, when adjusting the height position of the supporting bottom box 13, the supporting bottom box 13 drives the first limit sliding rods 9 at the top to move synchronously. The first limit sliding rods 9 are limited and slide with the fixed side plate 6, thereby improving the stability of the adjustment of the supporting bottom box 13.

[0040] Please refer to Figures 1 to 3 , on the side of the first supporting side seat 2 away from the letterpress printing machine 1, a second supporting side seat 3 is fixedly connected. On the top of the second supporting side seat 3, a fixed top frame 14 is fixedly connected. Inside the fixed top frame 14, a winding roller 15 is rotatably arranged. On one side of the fixed top frame 14, a second motor 16 is installed. The output end of the second motor 16 is fixedly connected to the winding roller 15.

[0041] It can be understood that in the present utility model, the output end of the second motor 16 drives the winding roller 15 to rotate, and the winding roller 15 is used to wind the film material after letterpress printing.

[0042] Please refer to Figures 1 to 4 , on the top of the supporting top frame 4, a supporting top plate 5 is fixedly connected. The bottom of the supporting top plate 5 is fixedly connected to the fixed side plate 6.

[0043] It can be understood that in the present utility model, the supporting top plate 5 is connected and fixed on the top of the supporting top frame 4, further supporting and fixing the position of the fixed side plate 6 on one side of the supporting top frame 4.

[0044] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "center", "both ends", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0045] In addition, the terms "first", "second", "third", "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third", "fourth" may explicitly or implicitly include at least one of such features.

[0046] In the present utility model, unless otherwise clearly defined and limited, terms such as "installed", "set", "connected", "fixed", "swivelly connected", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. Unless otherwise clearly limited, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0047] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A relief printing device, characterized in that: include: Letterpress(1); A first supporting side seat (2), the first supporting side seat (2) is arranged on one side of the relief printing machine (1); A supporting top frame (4), the supporting top frame (4) is symmetrically arranged on the top of the first supporting side seat (2); A fixed side plate (6), the fixed side plate (6) being arranged on one side of the supporting top frame (4); A No. 1 hydraulic cylinder (7), which is mounted on the top of the fixed side plate (6); A supporting bottom box (13), wherein the supporting bottom box (13) is arranged at the output end of the No. 1 hydraulic cylinder (7); A film cutting knife (12), the film cutting knife (12) is symmetrically slidably arranged at the bottom of the supporting bottom box (13); The adjusting bracket (19) is slidably arranged on the inner side of the supporting top frame (4), and a guide roller (21) is rotatably arranged inside the adjusting bracket (19).

2. A relief printing device according to claim 1, characterized in that: It also includes a fixed inner plate (17), which is fixedly connected to the inner side of the supporting top frame (4), a No. 2 hydraulic cylinder (18) is installed at the bottom of the fixed inner plate (17), the output end of the No. 2 hydraulic cylinder (18) is fixedly connected to the adjusting bracket (19), and a No. 2 limiting slide bar (20) is symmetrically slidably arranged inside the fixed inner plate (17), and the top end of the No. 2 limiting slide bar (20) is fixedly connected to the adjusting bracket (19).

3. A relief printing device according to claim 1, characterized in that: The supporting bottom box (13) is internally rotatably provided with a bidirectional screw rod (10), the outer side of the bidirectional screw rod (10) is symmetrically threadedly connected with a limit slider (8), the limit slider (8) is slidably connected to the supporting bottom box (13), a No. 1 motor (11) is installed on one side of the supporting bottom box (13), the output end of the No. 1 motor (11) is fixedly connected to the bidirectional screw rod (10), and the bottom of the limit slider (8) is fixedly connected to the film cutting knife (12).

4. A relief printing device according to claim 1, characterized in that: A first limiting slide bar (9) is symmetrically slidably arranged inside the fixed side plate (6), and the bottom end of the first limiting slide bar (9) is fixedly connected to the supporting bottom box (13).

5. A relief printing device according to claim 1, characterized in that: A No. 2 supporting side seat (3) is fixedly connected to a side of the No. 1 supporting side seat (2) away from the relief printing machine (1); a fixed top frame (14) is fixedly connected to the top of the No. 2 supporting side seat (3); a winding roller (15) is rotatably arranged inside the fixed top frame (14); a No. 2 motor (16) is installed on one side of the fixed top frame (14); and an output end of the No. 2 motor (16) is fixedly connected to the winding roller (15).

6. A relief printing device according to claim 1, characterized in that: The top of the supporting top frame (4) is fixedly connected to a supporting top plate (5), and the bottom of the supporting top plate (5) is fixedly connected to a fixed side plate (6).

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