Multifunctional sheet-fed gravure press with main unit and drying unit separated

Abstract

The utility model discloses a multifunctional sheet-fed photogravure press with a host separated from drying, which relates to the technical field of photogravure presses, and comprises a base, a conveying chain and a support frame which are arranged on the base, a drying device arranged above the support frame, a mesh belt positioned below the drying device, a guide roller and an air collecting pipe, the two guide rollers are rotationally arranged in the supporting frame and are in rolling contact with the lower surface of the mesh belt, and the opposite surfaces of the lower half section and the upper half section of the mesh belt are in contact; a fan is installed in the supporting frame, the air inlet end of the fan communicates with an air blocking ring, and the air inlet end of the air blocking ring makes contact with the lower surface of the lower half section. The air outlet end of the draught fan communicates with the air collecting pipe, the air collecting pipe communicates with an air exhaust assembly, and the air exhaust assembly communicates with the drying device. According to the multifunctional sheet-fed gravure press with the main machine separated from the drying machine, electric energy consumed by the fan can be reduced, and hot air can be recycled.

Description

Technical Field

[0001] The utility model relates to the technical field of intaglio printing machines, in particular to a multi-functional single-sheet intaglio printing machine with a separated main machine and drying device. Background Art

[0002] An intaglio printing machine is an important printing device with a unique working principle and remarkable characteristics. The working principle of an intaglio printing machine is based on intaglio plate making technology. The graphic part of the printing plate is recessed, while other parts are on the same plane as the outer circle of the printing plate cylinder. When the intaglio printing machine is printing, the entire surface of the printing plate cylinder is inked, and the ink on other parts of the plate surface is scraped off by a doctor blade, leaving the ink in the graphic part. Then, the impression cylinder applies pressure on the back of the printing material to transfer the ink in the pits to the printing material, thus realizing printing.

[0003] The applicant's patent (publication number CN215041157U) discloses a multi-functional single-sheet intaglio printing machine with a separated main machine and drying device, which is provided with a mesh belt and a transmission chain. A drying device is arranged on the mesh belt, and the transportation of paper is divided into two parts to prevent the residual temperature on the mesh belt from affecting the printing work of the main machine, eliminating the dry plate phenomenon caused by the heat transfer of the drying part to the main machine; improving the drying effect of special processes such as freezing point, snowflake, and wrinkle; and increasing the printing speed of tactile water-based ink.

[0004] However, it can be directly known from its drawings and specifications that the fan and the wind shield are located below the workbench, and the workbench is located below the mesh belt. The inventor believes that this results in the air inlet at the top of the wind shield being far from the paper on the upper half surface of the mesh belt. The fan will suck in the air between the upper and lower cavities of the mesh belt and between the wind shield and the workbench, causing air leakage. This requires increasing the power of the fan (i.e., using a fan with a large rated air volume) to ensure that the paper can be firmly adsorbed on the mesh belt, resulting in a large amount of electrical energy consumed by the fan; and the fan will suck away the hot air generated by the drying device, and the sucked hot air is not reused, causing waste.

[0005] Therefore, it is necessary to develop a multi-functional single-sheet intaglio printing machine with a separated main machine and drying device to address the above-mentioned defects. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a multi-functional single-sheet intaglio printing machine with a separated main machine and drying device, which can reduce the electrical energy consumed by the fan and recycle the hot air.

[0007] To solve the above technical problems, the utility model adopts the following technical solutions:

[0008] The utility model relates to a multi-functional single-sheet gravure printing press with a separated main machine and drying device, which comprises a base, and a paper feeding device, a paper transfer channel, a main machine, a transfer chain, a support frame, a bridging plate and a paper receiving device which are sequentially arranged on the base. It further comprises a drying device arranged above the support frame and a mesh belt positioned below the drying device. One end of the mesh belt extends to the lower end of the transfer chain. It also comprises:

[0009] Guide rollers, which are rotatably mounted in the support frame. There are two guide rollers, which are respectively arranged at the feeding end and the discharging end of the support frame. The guide rollers are located below the lower half section of the mesh belt, and the guide rollers are in rolling contact with the lower surface of the lower half section. The lower half section is arranged parallel to the upper half section of the mesh belt, and the surface of the lower half section opposite to the upper half section is in contact or has a gap of 1 to 5 millimeters; A plurality of air blowers are installed in the support frame, and a wind shield is connected to the air inlet end of the air blower. The air inlet end of the wind shield is in contact or has a gap of 1 to 5 millimeters with the lower surface of the lower half section;

[0010] An air collecting pipe, which is located in the support frame. The air outlet end of the air blower is communicated with the air collecting pipe, and an exhaust component is communicated with the air collecting pipe. The exhaust component is communicated with the drying device.

[0011] Furthermore, it also comprises an adjusting component. One adjusting component is correspondingly arranged at both ends of each guide roller. The adjusting component comprises a slider, a bolt and a fixing block. Both ends of the guide roller protrude out of the support frame. A strip-shaped through hole is formed in the support frame, and the length direction of the strip-shaped through hole is the vertical direction. One end of the slider is located in the strip-shaped through hole, and both sides of the slider are slidably connected with the inner walls of both sides of the strip-shaped through hole. A bearing hole is formed in the slider, and a bearing is installed in the bearing hole. The end of the guide roller is rotatably connected with the slider through the bearing. The fixing block is fixedly connected with the outer wall of the support frame. The bolt is arranged vertically, and the bolt rotatably penetrates through the fixing block. The bolt is in threaded connection with the fixing block, and the top end of the bolt is rotatably connected with the bottom surface of the slider.

[0012] Furthermore, an inclined plate is fixed in the support frame. The inclined plate is arranged parallel to the lower half section. The air blower is fixed on the lower surface of the inclined plate. A plurality of ventilation openings are formed in the inclined plate, and the ventilation openings are arranged corresponding to the air blowers one by one. The wind shield is fixed on the upper surface of the inclined plate.

[0013] Furthermore, the air outlet end of the air blower is communicated with the air collecting pipe through a hose.

[0014] Further, the exhaust air assembly includes a first exhaust air duct and a second exhaust air duct. One end of the first exhaust air duct is communicated with the air collecting duct, the other end of the first exhaust air duct extends out of the support frame and is communicated with one end of the second exhaust air duct, and the other end of the second exhaust air duct is communicated with the drying device; the second exhaust air duct is a flexible duct.

[0015] Further, there are two drying devices.

[0016] Further, the end of the first exhaust air duct extending out of the support frame is arranged as a tee pipe, and there are two second exhaust air ducts which are arranged in one-to-one correspondence with the two drying devices.

[0017] Further, the exhaust air assembly further includes valves. There are two valves which are arranged in one-to-one correspondence with the second exhaust air ducts. One end of each valve is communicated with the second exhaust air duct, and the other end of each valve is communicated with the tee pipe.

[0018] Compared with the prior art, the beneficial technical effects of the present utility model are as follows:

[0019] In the multifunctional single-sheet gravure printing machine with the host machine separated from the drying part of the present utility model, through the arrangement of the guide rollers, the lower half section and the upper half section of the mesh belt are in contact with each other or there is a gap of 1 to 5 millimeters between them, and the wind shield ring is in contact with the lower half section or there is a gap of 1 to 5 millimeters. In summary, the distance between the wind shield ring and the paper is reduced, the air leakage phenomenon is reduced, so that the power of the fan can be reduced, that is, a fan with a smaller rated air volume can be selected, thereby saving electric energy. The hot air flow is collected through the air collecting duct, and then the hot air flow is transported to the drying device through the exhaust air assembly, so that the hot air can be recycled. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present utility model will be further described below in conjunction with the drawings.

[0021] Figure 1 is the front view structural schematic diagram of the present utility model;

[0022] Figure 2 is the internal structural schematic diagram of the support frame of the present utility model.

[0023] Description of the reference numerals: 1, paper feeding device; 2, paper transfer channel; 3, host machine; 4, transmission chain; 5, support frame; 501, strip-shaped through hole; 6, bridging plate; 7, paper receiving device; 8, mesh belt; 801, lower half section;

[0024] 802, upper half section; 9, base; 10, drying device; 11, guide roller; 12, fan; 13, wind shield ring.

[0025] 14. Collector duct; 15. Slide block; 16. Bolt; 17. Fixed block; 18. Inclined plate; 19. First row of air ducts; 20. Second row of air ducts; 21. Valve. Detailed implementation manner

[0026] The core of the present utility model is to provide a multi-functional single-sheet gravure printing machine with a separated main machine and drying function, which can reduce the electric energy consumed by the fan and recycle the hot air.

[0027] 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 work shall fall within the protection scope of the present utility model.

[0028] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "middle", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation to the present utility model.

[0029] In a specific implementation manner of the present utility model, as Figures 1-2 shown, it includes a base 9 and a paper feeding device 1, a paper transfer channel 2, a main machine 3, a transmission chain 4, a support frame 5, a bridging plate 6, and a paper receiving device 7 sequentially arranged on the base 9. It also includes a drying device 10 arranged above the support frame 5 and a mesh belt 8 located below the drying device 10. One end of the mesh belt 8 extends to the lower end of the transmission chain 4. It further includes:

[0030] Guide rollers 11, the guide rollers 11 are rotatably mounted in the support frame 5. There are two guide rollers 11, and the two guide rollers 11 are respectively arranged at the feeding end and the discharging end of the support frame 5. The guide rollers 11 are located below the lower half section 801 of the mesh belt 8, and the guide rollers 11 are in rolling contact with the lower surface of the lower half section 801. The lower half section 801 is arranged in parallel with the upper half section 802 of the mesh belt 8. The surface of the lower half section 801 opposite to the upper half section 802 is in contact or has a gap of one to five millimeters; A plurality of fans 12 are installed in the support frame 5. The air inlet end of the fan 12 is connected with a wind shield 13. The air inlet end of the wind shield 13 is in contact with the lower surface of the lower half section 801 or has a gap of one to five millimeters;

[0031] The air collecting duct 14 is located inside the support frame 5. The air outlet end of the fan 12 is communicated with the air collecting duct 14. An exhaust component is communicated with the air collecting duct 14, and the exhaust component is communicated with the drying device 10.

[0032] Specifically, through the arrangement of the guide rollers 11, the lower half 801 and the upper half 802 of the mesh belt 8 are in contact or there is a gap of 1 to 5 millimeters between them, and the wind shield 13 is in contact with the lower half 801 or there is a gap of 1 to 5 millimeters. In summary, the distance between the wind shield 13 and the paper is reduced, the air leakage phenomenon is reduced, so that the power of the fan can be reduced, that is, a fan with a smaller rated air volume can be selected, thus saving electric energy. The hot air flow is collected through the air collecting duct 14, and then the hot air flow is transported to the drying device 10 through the exhaust component, so that the hot air can be recycled.

[0033] The paper feeding device 1, the paper transfer channel 2, the main machine 3, the transfer chain 4, the support frame 5, the bridging plate 6, the paper receiving device 7, the mesh belt 8 and the drying device 10 are all prior arts. For example, the mesh belt 8 is sleeved on two rotating rollers, a driven wheel is arranged at the end of any one of the rotating rollers, a driving motor is installed on the base 9, a driving wheel is installed on the output shaft of the driving motor, and the driving wheel and the driven wheel are connected by a belt or a chain.

[0034] In a specific embodiment of the present invention, an adjusting component is further included. An adjusting component is correspondingly arranged at both ends of each guide roller 11. The adjusting component includes a slider 15, a bolt 16 and a fixing block 17. Both ends of the guide roller 11 protrude out of the support frame 5. A strip-shaped through hole 501 is opened on the support frame 5. The length direction of the strip-shaped through hole 501 is the vertical direction. One end of the slider 15 is located in the strip-shaped through hole 501, and both sides of the slider 15 are slidably connected with the inner walls of both sides of the strip-shaped through hole 501. A bearing hole is opened on the slider 15, and a bearing is installed in the bearing hole. The end of the guide roller 11 is rotatably connected with the slider 15 through the bearing. The fixing block 17 is fixedly connected with the outer wall of the support frame 5. The bolt 16 is arranged vertically, the bolt 16 rotatably penetrates through the fixing block 17, the bolt 16 is in threaded connection with the fixing block 17, and the top end of the bolt 16 is rotatably connected with the bottom surface of the slider 15.

[0035] Specifically, when the rotating bolt 16 is turned, the top end of the bolt 16 rises or falls. The top end of the bolt 16 drives the slider 15 to lift and lower synchronously, then the guide roller 11 lifts and lowers synchronously, and the distance between the upper half section 802 and the lower half section 801 is adjustable. If the mesh belt 8 is made of an elastic and stretchable material, the distance adjustment between the upper half section 802 and the lower half section 801 can be achieved without replacement; if the mesh belt 8 is made of a non-elastic material, the mesh belt 8 with a corresponding circumference needs to be replaced. Blind holes can be formed on the bottom surface of the slider 15, and ball bearings are installed in the blind holes. The top end of the bolt 16 is set as a smooth rod, and the smooth rod is in interference fit with the inner ring of the ball bearing, so that the top end of the bolt 16 is rotatably connected to the bottom surface of the slider 15; alternatively, blind holes can be formed on the bottom surface of the slider 15, and elastic retaining rings are installed in the blind holes. A first smooth shaft section is integrally formed at the top end of the bolt 16, and a second smooth shaft section is integrally formed at the top end of the first smooth shaft section. The diameter of the second smooth shaft section is larger than that of the first smooth shaft section. Both the first smooth shaft section and the second smooth shaft section extend into the blind hole, and the second smooth shaft section is in rotational fit with the inner wall of the blind hole. The elastic retaining ring is clamped and rotatably fitted with the step surfaces of the first smooth shaft section and the second smooth shaft section, so that the top end of the bolt 16 is rotatably connected to the bottom surface of the slider 15. The above two rotational connection methods both belong to the prior art and will not be elaborated here.

[0036] In a specific embodiment of the present invention, an inclined plate 18 is fixed inside the support frame 5. The inclined plate 18 is arranged parallel to the lower half section 801. The blower 12 is fixed on the lower surface of the inclined plate 18. A plurality of ventilation openings are formed in the inclined plate 18, and the ventilation openings are arranged in one-to-one correspondence with the blower 12. The wind shield ring 13 is fixed on the upper surface of the inclined plate 18.

[0037] In a specific embodiment of the present invention, the air outlet end of the blower 12 is communicated with the collecting air duct 14 through a hose.

[0038] In a specific embodiment of the present invention, the exhaust component includes a first exhaust air duct 19 and a second exhaust air duct 20. One end of the first exhaust air duct 19 is communicated with the collecting air duct 14. The other end of the first exhaust air duct 19 extends out of the support frame 5 and is communicated with one end of the second exhaust air duct 20. The other end of the second exhaust air duct 20 is communicated with the drying device 10; the second exhaust air duct 20 is a hose.

[0039] Specifically, the drying device 10 belongs to the prior art, and the air can be heated by means of electric heating tubes or hot air blowers. The blower 12 conveys the hot air flow into the collecting air duct 14 through a hose. The hot air flow enters the shell of the drying device 10 through the first exhaust air duct 19 and the second exhaust air duct 20 and is discharged from the opening at the bottom end of the shell.

[0040] In a specific embodiment of the present invention, two drying devices 10 are provided.

[0041] In a specific embodiment of the present utility model, one end of the first exhaust duct 19 protruding from the support frame 5 is provided as a tee pipe, and there are two second exhaust ducts 20 which are arranged in one-to-one correspondence with the two drying devices 10.

[0042] In a specific embodiment of the present utility model, the exhaust air assembly further includes valves 21. There are two valves 21 which are arranged in one-to-one correspondence with the second exhaust ducts 20. One end of the valve 21 is communicated with the second exhaust duct 20, and the other end of the valve 21 is communicated with the tee pipe.

[0043] Specifically, the valves 21 can adjust the air intake volume of the two second exhaust ducts 20, so that the hot air flow entering the two drying devices 10 is equal or one is larger and the other is smaller, thereby meeting different drying process requirements.

[0044] The working principle of a multi-functional single-sheet gravure printing machine with a separated main machine and drying function of the present utility model: Through the arrangement of the guide rollers 11, the lower half 801 and the upper half 802 of the mesh belt 8 are in contact or there is a gap of 1 to 5 millimeters between them, and the wind shield 13 is in contact with the lower half 801 or has a gap of 1 to 5 millimeters. In summary, the distance between the wind shield 13 and the paper is reduced, and the air leakage phenomenon is reduced, so that the power of the fan can be reduced, that is, a fan with a smaller rated air volume can be selected, thereby saving electric energy. The hot air flow is collected through the air collecting duct 14, and then the hot air flow is transported to the drying device 10 through the exhaust air assembly, so that the hot air can be recycled.

[0045] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other, and the embodiments can be combined with each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method part.

[0046] The above embodiments are only used to describe the preferred mode of the present utility model, and do not limit the scope of the present utility model. Without departing from the design spirit of the present utility model, various deformations and improvements made by those of ordinary skill in the art to the technical solution of the present utility model shall fall within the protection scope determined by the claims of the present utility model.

Claims

1. A multifunctional sheet-fed gravure printing machine with a main machine and a drying machine separated, comprising a base (9) and a paper feeding device (1), a paper transfer channel (2), a main machine (3), a conveying chain (4), a support frame (5), a strap (6) and a paper receiving device (7) arranged on the base (9) in sequence, and also comprising a drying device (10) arranged above the support frame (5) and a mesh belt (8) located below the drying device (10), one end of the mesh belt (8) extending to the lower end of the conveying chain (4), characterized in that: Also includes: A guide roller (11), the guide roller (11) is rotatably mounted in the support frame (5), two guide rollers (11) are provided, and the two guide rollers (11) are respectively arranged at the feeding end and the discharging end of the support frame (5), the guide roller (11) is located below the lower half (801) of the mesh belt (8), and the guide roller (11) is in rolling contact with the lower surface of the lower half (801), the lower half (801) is arranged in parallel with the upper half (802) of the mesh belt (8), and the surfaces of the lower half (801) and the upper half (802) facing each other are in contact with each other or have a spacing of one to five millimeters; a plurality of fans (12) are installed in the support frame (5), and the air inlet end of the fan (12) is connected to a wind shield ring (13), and the air inlet end of the wind shield ring (13) is in contact with the lower surface of the lower half (801) or has a spacing of one to five millimeters; An air collecting pipe (14), wherein the air collecting pipe (14) is located inside the support frame (5), an air outlet end of the fan (12) is connected to the air collecting pipe (14), an exhaust assembly is connected to the air collecting pipe (14), and the exhaust assembly is connected to the drying device (10).

2. The multifunctional sheet-fed gravure printing machine with separated mainframe and drying function according to claim 1, characterized in that: The invention also comprises an adjustment component, wherein each of the two ends of the guide roller (11) is provided with an adjustment component, and the adjustment component comprises a slider (15), a bolt (16) and a fixing block (17). Both ends of the guide roller (11) protrude out of the support frame (5), and the support frame (5) is provided with a strip-shaped through hole (501), and the length direction of the strip-shaped through hole (501) is the vertical direction. One end of the slider (15) is located in the strip-shaped through hole (501), and the two sides of the slider (15) are in contact with the strip-shaped through hole (501). ) are slidably connected to the inner walls on both sides of the support frame (5), a bearing hole is opened on the slider (15), a bearing is installed in the bearing hole, the end of the guide roller (11) is rotatably connected to the slider (15) through the bearing, the fixing block (17) is fixedly connected to the outer wall of the support frame (5), the bolt (16) is vertically arranged, the bolt (16) rotatably penetrates the fixing block (17), the bolt (16) is threadedly connected to the fixing block (17), and the top of the bolt (16) is rotatably connected to the bottom surface of the slider (15).

3. The multifunctional sheet-fed gravure printing machine with separated mainframe and drying function according to claim 1, characterized in that: An inclined plate (18) is fixed inside the support frame (5), the inclined plate (18) is arranged parallel to the lower half (801), the fan (12) is fixed to the lower surface of the inclined plate (18), a plurality of ventilation holes are opened on the inclined plate (18), the ventilation holes are arranged one-to-one with the fans (12), and the wind shield ring (13) is fixed to the upper surface of the inclined plate (18).

4. The multifunctional sheet-fed gravure printing machine with separated main machine and drying device according to claim 1 or 3, characterized in that: The air outlet end of the fan (12) is connected to the air collecting pipe (14) via a hose.

5. The multifunctional sheet-fed gravure printing machine with separated mainframe and drying function according to claim 1, characterized in that: The exhaust assembly comprises a first exhaust pipe (19) and a second exhaust pipe (20); one end of the first exhaust pipe (19) is connected to the air collecting pipe (14); the other end of the first exhaust pipe (19) protrudes out of the support frame (5) and is connected to one end of the second exhaust pipe (20); the other end of the second exhaust pipe (20) is connected to the drying device (10); the second exhaust pipe (20) is a hose.

6. The multifunctional sheet-fed gravure printing machine with separated mainframe and drying function according to claim 5, characterized in that: The drying devices (10) are provided with two.

7. The multifunctional sheet-fed gravure printing machine with separated mainframe and drying function according to claim 6, characterized in that: One end of the first exhaust duct (19) extending out of the support frame (5) is configured as a three-way duct, and two second exhaust ducts (20) are provided and are arranged in one-to-one correspondence with the two drying devices (10).

8. The multifunctional sheet-fed gravure printing machine with separated mainframe and drying function according to claim 7, characterized in that: The exhaust assembly further comprises a valve (21), wherein the valve (21) is provided with two valves connected to the first The two exhaust pipes (20) are arranged in a one-to-one correspondence, and one end of the valve (21) is connected to the second exhaust pipe (20). The other end of the valve (21) is communicated with the three-way pipe.

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