A double-sided printing machine

Abstract

The present invention provides a double-sided printing machine, comprising a printing machine body, the printing machine body comprising a base, a transmission component, a support mechanism and a printing module, one end of the base is provided with a discharge port, the bottom end of the discharge port is provided with a collection box, the other end of the bottom of the base is provided with a support leg, the top of the collection box is in an open state, and the collection box and the bottom of the base are welded as a whole, the surface of the base is provided with a transmission component, and the middle position of the transmission component is provided with a printing module, the double-sided printing machine is only provided with a single printing module, and the transmission component at the bottom can be used to move each cardboard back and forth to sequentially contact the two sides with the printing module part at the top, so as to achieve the effect of double-sided printing, improve the utilization rate of the printing module, and apply a downward thrust to the accumulated cardboard through the reversing groove at the end and the vertical conveyor belts on both sides, so as to avoid the cardboard from warping.

Description

Technical Field

[0001] The invention relates to the technical field of printing, in particular to a double-sided printing machine. Background Art

[0002] During the production and processing of cartons, a printing press is needed. Using four-color printing technology, various patterns are printed on the surface of the cardboard through the printing press. Among them, the double-sided printing machine can print on both sides of the cardboard at the same time, without the need for manual flipping, thus greatly improving the printing efficiency.

[0003] The double-sided printing press in the prior art realizes the double-sided printing effect by building two sets of printing mechanisms. Therefore, it is necessary to carry two sets of four-color printing components and corresponding feeding systems inside the printing press. This structure leads to an increase in the cost of the printing press, and the additional printing module also increases the failure rate, making the subsequent maintenance and repair more difficult and increasing the cost of replacing accessories. On the other hand, when a conventional double-sided printing press is in use, there is a certain difference between the printing pressure on the top of the cardboard and the printing pressure on the bottom, which leads to poor uniformity of the final product of double-sided printing, making it difficult to achieve a completely uniform printing effect. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a double-sided printing machine to solve the problems raised in the above-mentioned background technology. The present invention improves the printing efficiency, can achieve double-sided printing effect using a single four-color printing component, reduces equipment costs, and promotes to maintain balanced printing pressure on both sides.

[0005] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: a double-sided printing machine, including a printing machine body, the printing machine body including a base, a conveying assembly, a supporting mechanism and a printing module, a discharge port is opened at one end of the base, a collecting box is installed at the bottom end of the discharge port, a supporting leg is installed at the other end of the bottom of the base, the top of the collecting box is in an open state, and the collecting box and the bottom of the base are welded as a whole, a conveying assembly is installed on the surface of the base, a printing module is installed in the middle position of the conveying assembly, a supporting mechanism is installed on the top of the printing module, a plurality of brackets are installed on the sides of the supporting mechanism and the conveying assembly, the bottom of each bracket is fixedly connected to the surface of the base, a material preparation mechanism is installed on the top of the supporting mechanism, and the material preparation mechanism is partially connected to the printing module.

[0006] Furthermore, the conveying assembly includes a first horizontal conveyor belt, a second horizontal conveyor belt and a third horizontal conveyor belt, the rear end of the second horizontal conveyor belt is provided with a first vertical conveyor belt, and one end of the third horizontal conveyor belt is provided with a reversing guide roller group.

[0007] Furthermore, a second vertical conveyor belt is connected to the top of the side of the reversing guide roller group, and the first vertical conveyor belt and the second vertical conveyor belt remain parallel, the third horizontal conveyor belt and the second vertical conveyor belt are connected to each other, and a reversing groove is set in the middle of the first vertical conveyor belt and the second vertical conveyor belt.

[0008] Furthermore, the first horizontal conveyor belt and the second horizontal conveyor belt are flush with each other, a gap is provided between the bottom of the first vertical conveyor belt and the third horizontal conveyor belt, and the second horizontal conveyor belt and the first vertical conveyor belt are at a right angle.

[0009] Furthermore, the printing module includes four-color guide rollers, each of which is mounted with a printing rubber sleeve on its surface, a four-color dye bin is installed between two adjacent four-color guide rollers, and the front end of the four-color dye bin is connected to a replenishing pipe, which is connected to the material preparation mechanism at the top.

[0010] Furthermore, the side of the four-color dye bin is provided with an arc structure, and a gap is provided between the side of the four-color dye bin and the surface of the printing rubber sleeve, and a sponge brush is installed on the outside of the four-color dye bin.

[0011] Furthermore, the material preparation mechanism includes a material storage box and a metering pump. The material storage box is fixedly installed on the top of the supporting mechanism. A plurality of injection ports are arranged on the surface of the material storage box. The metering pump is connected to the interior of the material storage box through a pipeline.

[0012] Furthermore, the metering pump is connected to the interior of the four-color dye bin at the bottom through a liquid replenishing pipe, and the four-color dye bins are connected to the independent internal space of the storage box through independent conveying pipes.

[0013] Furthermore, the support mechanism includes a top plate and a boosting mechanism, the boosting mechanism is installed at the bottom of the top plate, a pressure plate is provided at the bottom of the boosting mechanism, both ends of the pressure plate are connected to elastic membranes, and the top of the pressure plate is connected to a spring.

[0014] Furthermore, the top of the spring is fixedly connected to the bottom of the top plate, a closed space is provided between the pressure plate and the top plate, and a gap is provided between the pressure plate and the surface of the four-color guide roller at the bottom.

[0015] Beneficial effects of the present invention: A double-sided printing machine of the present invention comprises a printing machine body, wherein the printing machine body comprises a base, a discharge port, a collection box, support legs, a conveying assembly, a support mechanism, a printing module, a material preparation mechanism, a first horizontal conveyor belt, a second horizontal conveyor belt, a third horizontal conveyor belt, a first vertical conveyor belt, a second vertical conveyor belt, a reversing guide roller group, a reversing groove, a four-color guide roller, a four-color dye bin, a liquid replenishment pipeline, a top plate, a booster mechanism, a material storage box, an injection port, a metering pump, a printing rubber sleeve, a sponge brush, a pressure plate, a spring, an elastic membrane, and a bracket.

[0016] 1. The double-sided printing machine is only equipped with a single printing module. With the conveying assembly at the bottom, the raw materials of each carton can be moved back and forth to contact the two sides with the printing module at the top in sequence, so as to achieve the effect of double-sided printing, thereby improving the utilization rate of the printing module and reducing the equipment cost requirement.

[0017] 2. The double-sided printing machine stacks the conveyed cardboard parts through the reversing groove at the end and realizes the effect of reversing movement. With the vertical conveyor belts on both sides applying downward thrust to the stacked cardboard, the cardboard parts can always be kept horizontally placed to avoid the cardboard from warping, thereby improving the smoothness of the cardboard reversing.

[0018] 3. The double-sided printing machine is equipped with a booster mechanism at the bottom of the support mechanism, which can provide downward pressure to the cardboard, thereby improving the printing quality on the bottom of the cardboard, thereby making the printing effects on the top and bottom of the cardboard more balanced and uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic structural diagram of the appearance of a double-sided printing machine of the present invention;

[0020] Figure 2 A side view of a conveying assembly of a double-sided printing press according to the present invention;

[0021] Figure 3 It is a structural schematic diagram of a material preparation mechanism of a double-sided printing machine of the present invention;

[0022] Figure 4 It is a structural schematic diagram of a printing module part of a double-sided printing machine of the present invention;

[0023] Figure 5 A side sectional view of a pressurizing mechanism of a double-sided printing press according to the present invention;

[0024] In the figure: 1. base; 2. discharge port; 3. collection box; 4. support leg; 5. conveying assembly; 6. support mechanism; 7. printing module; 8. material preparation mechanism; 9. first horizontal conveyor belt; 10. second horizontal conveyor belt; 11. third horizontal conveyor belt; 12. first vertical conveyor belt; 13. second vertical conveyor belt; 14. reversing guide roller group; 15. reversing groove; 16. four-color guide roller; 17. four-color dye bin; 18. liquid replenishing pipeline; 19. top plate; 20. booster mechanism; 21. material storage box; 22. injection port; 23. metering pump; 24. printing rubber sleeve; 25. sponge brush; 26. pressure plate; 27. spring; 28. elastic membrane; 29. ​​bracket. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0026] See also Figures 1 to 5 The present invention provides a technical solution: a double-sided printing machine, comprising a printing machine body, the printing machine body comprising a base 1, a transmission component 5, a support mechanism 6 and a printing module 7, one end of the base 1 is provided with a discharge port 2, the bottom end of the discharge port 2 is provided with a collection box 3, the other end of the bottom of the base 1 is provided with a support leg 4, the top of the collection box 3 is in an open state, and the collection box 3 and the bottom of the base 1 are welded as a whole, the surface of the base 1 is provided with a transmission component 5, the middle position of the transmission component 5 is provided with a printing module 7, the top of the printing module 7 is provided with a support mechanism 6, and the sides of the support mechanism 6 and the transmission component 5 are provided with a plurality of brackets 29, the bottom of each bracket 29 is fixedly connected to the surface of the base 1, and a material preparation mechanism 8 is installed on the top of the support mechanism 6, and the material preparation mechanism 8 is connected to the printing module 7. The double-sided printing machine is mainly used in the production and processing of cartons to print patterns on both sides of the cardboard raw materials. When used specifically, the cardboard raw materials are directly placed on the first horizontal conveyor belt 9 in the conveying component 5, and can be transported along the conveying component 5. During the conveying process, they come into contact with the printing module 7, and the surface of the cardboard can be printed, and the conveying component 5 is used for reversing processing, so that double-sided printing processing is achieved through a single printing module 7.

[0027] In this embodiment, the conveying assembly 5 includes a first horizontal conveyor belt 9, a second horizontal conveyor belt 10 and a third horizontal conveyor belt 11. The rear end of the second horizontal conveyor belt 10 is provided with a first vertical conveyor belt 12. One end of the third horizontal conveyor belt 11 is provided with a reversing guide roller group 14. The side top of the reversing guide roller group 14 is connected to a second vertical conveyor belt 13, and the first vertical conveyor belt 12 and the second vertical conveyor belt 13 are kept parallel. The third horizontal conveyor belt 11 and the second vertical conveyor belt 13 are connected to each other. The first vertical conveyor belt 12 A reversing groove 15 is arranged in the middle of the second vertical conveyor belt 13, the first horizontal conveyor belt 9 and the second horizontal conveyor belt 10 are flush with each other, a gap is arranged between the bottom of the first vertical conveyor belt 12 and the third horizontal conveyor belt 11, and the second horizontal conveyor belt 10 and the first vertical conveyor belt 12 are at a right angle, the conveyed cardboard part is stacked through the reversing groove 15 at the end, and the effect of reversing movement is achieved, and the downward thrust applied to the stacked cardboard by the vertical conveyor belts on both sides can keep the cardboard part horizontally placed all the time, avoiding the cardboard The warping situation improves the smoothness of the cardboard reversing. Specifically, after the cardboard raw material is placed on the surface of the first horizontal conveyor belt 9, it can be transported backward along the first horizontal conveyor belt 9. After moving between the printing module 7 and the supporting mechanism 6, the pressure-boosting mechanism 20 provides downward pressure to the cardboard raw material. After the pressure is generated between the printing module 7, the prefabricated pattern on the four-color guide roller 16 can be printed on the cardboard raw material. After the bottom printing of the cardboard raw material is completed, it will move to the second horizontal conveyor belt 10, and fall into the inner side of the reversing groove 15 at the rear end along with the second horizontal conveyor belt 10, and temporarily accumulate in the reversing groove 15. After the cardboard raw material at the bottom contacts the third horizontal conveyor belt 11, it can continue to move in the opposite direction, and finally the top of the cardboard raw material contacts the bottom of the printing module 7 again, so as to realize the printing process on the top surface of the cardboard raw material. In this process, when the cardboard raw material is accumulated on the inner side of the reversing groove 15, a downward thrust will be applied through the first vertical conveyor belt 12 and the second vertical conveyor belt 13. The thrust can ensure that the accumulated cardboard raw material can always maintain a horizontal state to avoid jamming.

[0028] In this embodiment, the printing module 7 includes a four-color guide roller 16, and a printing rubber sleeve 24 is attached to the surface of each of the four-color guide rollers 16. A four-color dye bin 17 is installed between two adjacent four-color guide rollers 16, and the front end of the four-color dye bin 17 is connected to a liquid replenishing pipe 18, and the liquid replenishing pipe 18 is partially connected to the material preparation mechanism 8 at the top. The side of the four-color dye bin 17 is provided with an arc structure, and a gap is provided between the side of the four-color dye bin 17 and the surface of the printing rubber sleeve 24. A sponge brush 25 is installed on the outside of the four-color dye bin 17. Only a single printing module 7 is provided, and each paper can be transferred to the printing module 7 by cooperating with the conveying component 5 at the bottom. The raw materials of the box are brought into contact with the printing module 7 on the top in sequence on both sides through reciprocating movement, so as to achieve the effect of double-sided printing, thereby improving the utilization rate of the printing module 7 and reducing the equipment cost requirement. After the dye is partially injected into the four-color dye bin 17 through the top material preparation mechanism 8, the dye can be applied to the printing rubber sleeve 24 on the surface of each four-color guide roller 16 through the sponge brush 25 as the four-color guide roller 16 rotates, so as to achieve subsequent printing processing. Moreover, as the four-color guide roller 16 rotates, the cardboard raw materials moving on the top can be pushed backwards at the same time, and the cardboard raw materials at the bottom can be pushed forwards, so as to achieve a two-way conveying effect.

[0029] In this embodiment, the material preparation mechanism 8 includes a material storage box 21 and a metering pump 23. The material storage box 21 is fixedly installed on the top of the supporting mechanism 6. A plurality of injection ports 22 are arranged on the surface of the material storage box 21. The metering pump 23 is connected with the interior of the material storage box 21 through a pipeline. The metering pump 23 is connected with the interior of the four-color dye bin 17 at the bottom through a replenishment pipeline 18. The four-color dye bins 17 are all connected with the independent internal space of the material storage box 21 through independent conveying pipelines. Specifically, the dye portion on the inside of the material storage box 21 is extracted through the metering pump 23 and transported to the interior of each four-color dye bin 17 at the bottom along the replenishment pipeline 18 at the end to realize dye replenishment.

[0030] In this embodiment, the support mechanism 6 includes a top plate 19 and a booster mechanism 20, the booster mechanism 20 is installed at the bottom of the top plate 19, a pressure plate 26 is provided at the bottom of the pressure plate 26, both ends of the pressure plate 26 are connected to elastic membranes 28, the top of the pressure plate 26 is connected to a spring 27, the top of the spring 27 is fixedly connected to the bottom of the top plate 19, a closed space is provided between the pressure plate 26 and the top plate 19, and a gap is provided between the pressure plate 26 and the surface of the four-color guide roller 16 at the bottom, and a booster mechanism 20 is installed at the bottom of the support mechanism 6. The pressurizing mechanism 20 can provide downward pressure to the paperboard through the pressurizing mechanism 20, and the printing quality on the bottom of the paperboard is improved through the pressure, so that the printing effects on the top and bottom of the paperboard are more balanced and unified. Specifically, when the top paperboard material moves, after passing between the top plate 19 and the four-color guide roller 16, the inner spring 27 applies downward pressure to the bottom press plate 26, and then the pressure acts on the top of the paperboard material, so as to improve the contact pressure between the bottom of the paperboard material and the four-color guide roller 16, and optimize the final printing quality.

[0031] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0032] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A double-sided printing machine, comprising a printing machine body, characterized in that: The printing machine body comprises a base (1), a conveying assembly (5), a supporting mechanism (6) and a printing module (7); a discharge port (2) is provided at one end of the base (1); a collecting box (3) is installed at the bottom end of the discharge port (2); a supporting leg (4) is installed at the other end of the bottom of the base (1); the top of the collecting box (3) is in an open state, and the collecting box (3) and the bottom of the base (1) are welded as a whole; a conveying assembly (5) is installed on the surface of the base (1); a printing module (7) is installed in the middle of the conveying assembly (5); a supporting mechanism (6) is installed on the top of the printing module (7); a plurality of brackets (29) are installed on the sides of the supporting mechanism (6) and the conveying assembly (5); each bracket (29) is provided on the bottom of the base (1); The bottom of the bracket (29) is fixedly connected to the surface of the base (1), the top of the support mechanism (6) is equipped with a material preparation mechanism (8), and the material preparation mechanism (8) is connected to the printing module (7). The conveying assembly (5) includes a first horizontal conveyor belt (9), a second horizontal conveyor belt (10) and a third horizontal conveyor belt (11), the rear end of the second horizontal conveyor belt (10) is provided with a first vertical conveyor belt (12), one end of the third horizontal conveyor belt (11) is provided with a reversing guide roller group (14), the top of the side of the reversing guide roller group (14) is connected to the second vertical conveyor belt (13), and the first vertical conveyor belt (12) and the second vertical conveyor belt (13) are kept parallel to each other, and the third horizontal conveyor belt (11) is provided with a reversing guide roller group (14). The conveyor belt (11) and the second vertical conveyor belt (13) are connected to each other. A reversing groove (15) is provided between the first vertical conveyor belt (12) and the second vertical conveyor belt (13). The printing module (7) comprises four-color guide rollers (16). A printing rubber sleeve (24) is mounted on the surface of each of the four-color guide rollers (16). A four-color dye bin (17) is installed between two adjacent four-color guide rollers (16). A liquid replenishing pipe (18) is connected to the front end of the four-color dye bin (17). The liquid replenishing pipe (18) is partially connected to a material preparation mechanism (8) at the top. The material preparation mechanism (8) comprises a material storage box (21) and a metering pump (23). The material storage box (21) is fixedly installed on the top of the support mechanism (6). The surface of the material storage box (21) is provided with a plurality of injection ports (22); the metering pump (23) is connected to the interior of the material storage box (21) through a pipeline; the metering pump (23) is connected to the interior of a four-color dye bin (17) at the bottom through a liquid replenishing pipe (18); the four-color dye bins (17) are connected to the independent internal space of the material storage box (21) through independent conveying pipes; the support mechanism (6) comprises a top plate (19) and a pressurizing mechanism (20); the pressurizing mechanism (20) is installed at the bottom of the top plate (19); a pressure plate (26) is provided at the bottom of the pressurizing mechanism (20); elastic membranes (28) are connected to the two ends of the pressure plate (26); a spring (27) is connected to the top of the pressure plate (26);The top of the spring (27) is fixedly connected to the bottom of the top plate (19), a closed space is provided between the pressing plate (26) and the top plate (19), and a gap is provided between the pressing plate (26) and the surface of the four-color guide roller (16) at the bottom.

2. A double-sided printing machine according to claim 1, characterized in that: The first horizontal conveyor belt (9) and the second horizontal conveyor belt (10) are flush with each other, a gap is provided between the bottom of the first vertical conveyor belt (12) and the third horizontal conveyor belt (11), and the second horizontal conveyor belt (10) and the first vertical conveyor belt (12) are at a right angle.

3. A double-sided printing machine according to claim 1, characterized in that: The side of the four-color dye bin (17) is provided with an arc structure, and a gap is provided between the side of the four-color dye bin (17) and the surface of the printing rubber sleeve (24), and a sponge brush (25) is installed on the outside of the four-color dye bin (17).

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