Intermittent rotary press with cooling unit

Abstract

The invention relates to the technical field of printing machines, and provides an intermittent rotary printing machine with a cooling unit, which comprises a box body, a printing roller and a conveying roller, and further comprises a cooling mechanism, the cooling mechanism is used for cooling the box body and comprises a cold water assembly, a fan and a cold water tank, and the cold water assembly is used for conveying cold water into the box body; the cold water assembly comprises a water cooler and a cooling pipe network, the cooling pipe network is arranged in the box body and communicated with the water cooler, the fan is arranged on the inner bottom wall of the box body, the cooling pipe network is located above the fan, the cold water tank is arranged outside the box body and communicated with the cooling pipe network, and a plurality of air outlets are formed in the top of the box body. The device is used for discharging hot air. By means of the technical scheme, the problems that in the prior art, high-temperature drying causes printing material deformation, printing quality is reduced, and the cooling effect of an air cooling mode is limited are solved.

Description

Technical Field

[0001] The invention relates to the technical field of printing presses, and in particular to an intermittent rotary printing press with a cooling unit. Background Art

[0002] A rotary printing press is a device used for continuous large-scale printing. It generally includes a paper feeding part, a printing part, a drying part and a cutting part. The printing part is composed of a group of printing plates and printing rollers. There are graphics and texts on the printing plates, which are printed on paper through ink or ink transfer. After printing, the ink or ink is dried by a dryer in the drying part to prevent the pattern from blurring.

[0003] However, when printing thin film materials that are greatly affected by temperature, the high temperature heating of the dryer will cause the printed materials to stretch, resulting in inaccurate printing positioning and reduced printing quality. At the same time, the high temperature of the dryer will also have a certain impact on other components of the printing machine under long-term operation, resulting in a reduction in the service life of the components. The UV device currently used for drying ink usually uses air cooling for cooling, but the cooling effect is relatively limited. At the same time, in hot summer weather, the heat exchange effect between the printing machine and the outside world is also relatively limited. Therefore, we propose an intermittent rotary printing machine with a cooling unit, which can improve the cooling effect of the dried paper, reduce the deformation of the printed material, and ensure the printing quality. Summary of the invention

[0004] The present invention provides an intermittent rotary printing press with a cooling unit, which solves the problems in the related art that high-temperature drying causes deformation of printed materials, reduces printing quality, and the cooling effect of air cooling is limited.

[0005] The technical solution of the present invention is as follows: An intermittent rotary printing machine with a cooling unit comprises a box, a printing roller and a conveying roller, and also comprises: A cooling mechanism, the cooling mechanism is used to cool the box, and the cooling mechanism includes: A cold water assembly, the cold water assembly is used to transport cold water to the interior of the box, and the cold water assembly includes: Chillers; A cooling pipe network, the cooling pipe network is arranged inside the box, and the cooling pipe network is connected to the chiller; A fan, wherein the fan is arranged on the inner bottom wall of the box body, and the cooling pipe network is located above the fan; A cold water tank is arranged outside the box body, and the cooling pipe network is connected to the cold water tank.

[0006] In order to prevent the cold water from causing moisture in the box, a water absorption component is also included, and the water absorption component includes: A replacement frame, wherein the box body is provided with a replacement opening, and the replacement frame is slidably arranged inside the replacement opening; A water-absorbing sponge is arranged inside the replacement frame, and the water-absorbing sponge is located between the cooling pipe network and the printing roller.

[0007] In order to squeeze out the water in the water-absorbing sponge, a squeezing component is also included, and the squeezing component is used to squeeze out the water in the water-absorbing sponge. The squeezing component includes: A pressure plate, the pressure plate is arranged inside the box, the pressure plate is located below the water-absorbing sponge, and a plurality of water holes are opened on the pressure plate; A squeezing plate is arranged in a liftable manner inside the box body, and the squeezing plate is located above the water-absorbing sponge.

[0008] In order to realize the lifting and lowering of the extrusion plate, a lifting driving member is also included, and the lifting driving member is used to drive the extrusion plate to lift and lower, and the lifting driving member includes: A driving roller, the driving roller is rotatably arranged inside the box, and the driving roller is in contact with the printing roller; A rotating shaft, the rotating shaft being coaxially arranged on the driving roller; An eccentric wheel is arranged on the rotating shaft, and the eccentric wheel is in contact with the top end of the extrusion plate.

[0009] In order to increase the air flow rate and speed up the heat dissipation, an air circulation component is also included, and the air circulation component includes: An air supply pipe, wherein a plurality of the air supply pipes are provided, and the plurality of air supply pipes are arranged outside the printing roller and the conveying roller in a surrounding shape, a valve is provided on the air supply pipe, and the air supply pipe is connected to an air inlet pipe; A plurality of air blowing nozzles are provided, and the air blowing nozzles are connected to the air supply pipe.

[0010] In order to further improve the cooling effect on the printed matter, a cold air pipe is arranged inside the cold water tank, and the air supply pipe is connected with the air inlet pipe through the cold air pipe.

[0011] In order to drain excess water, a drainage component is also included, and the drainage component is used to drain the water at the bottom of the box body. The drainage component includes: A slope, wherein the slope is arranged on the inner bottom wall of the box body; A water outlet pipe, the water outlet pipe is connected to the bottom of the box body close to the lower side of the slope; A push plate is movably arranged inside the box body, and the push plate slides along the slope.

[0012] In order to prevent the push plate from blocking the water, a toggle assembly is also included, and the toggle assembly is used to toggle the push plate to rotate. The toggle assembly includes: A movable plate, wherein the movable plate is movably arranged inside the box body, and the push plate is rotatably arranged at the bottom of the movable plate; A limit spring is provided between the push plate and the movable plate, and is used to press the movable plate against the slope; A push rod is arranged on the inner wall of the box body, the push rod is located on the side of the slope with a higher height, and the push rod is in contact with the push plate.

[0013] In order to discharge the hot air in the box, a plurality of air outlets are provided on the top of the box for discharging the hot air.

[0014] In order to prevent foreign matter from falling into the interior of the box, a cover plate is provided on the top of the box to cover the air outlet, and a gap exists between the cover plate and the air outlet.

[0015] The working principle and beneficial effects of the present invention are: 1. In the present invention, cold water is transported to the interior of the cooling network and the cold water tank by a water chiller to cool the interior and exterior of the box simultaneously, and cold air is blown to the cooling network and the printing roller by a fan, and a plurality of air supply pipes are opened in sequence by valves to cool the printing roller and printed products at multiple angles, and air is circulated in the box to discharge hot air through the air outlet, thereby further improving the cooling effect on the printing roller and other components, thereby reducing the deformation of the printed products.

[0016] 2. In the present invention, the cold air generated by the cooling pipe network and the water vapor generated by the hot air exchange generated by drying are absorbed by the water-absorbing sponge, so as to reduce the deformation of the printed matter caused by the humid environment generated by the water vapor. At the same time, during the rotation of the printing roller, the driving roller and the eccentric wheel are driven to rotate, and the extrusion plate is pushed down to squeeze the water-absorbing sponge, so that the water in the water-absorbing sponge is squeezed to the bottom of the box body, and then falls to the water outlet pipe through the slope for discharge. The water on the slope is discharged with the assistance of the movement of the push plate. When the push plate returns to the upper position of the slope, the push rod pushes the push plate to rotate, so as to avoid the accumulation of water on the side of the push plate away from the water outlet pipe, thereby ensuring the drainage effect.

[0017] 3. Therefore, compared with the intermittent rotary printing press in the prior art, the present invention uses a water cooler to transport cold water to the interior of the cooling pipe network and the cold water tank, and at the same time uses a fan and an air supply pipe to blow cold air to the interior of the box to cool the printing roller and the printed matter, reduce the deformation of the printed matter during the drying process, and ensure the printing quality. At the same time, the water vapor generated by the alternation of hot and cold is absorbed by the absorbent sponge, and the eccentric wheel is driven to rotate by the printing roller to push the extrusion plate down to squeeze out the water in the absorbent sponge. The water is discharged through the outlet pipe through the push of the push plate and the slope of the slope. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] Figure 1 It is a structural schematic diagram of the first viewing angle of a partial cross-section of the present invention; Figure 2 It is a structural schematic diagram of a second viewing angle of a partial cross-section of the present invention; Figure 3 It is a schematic structural diagram of the first viewing angle of the entire present invention; Figure 4 It is a structural schematic diagram of the second viewing angle of the whole invention; Figure 5 It is a structural schematic diagram of the cooling mechanism of the present invention; Figure 6 It is a schematic diagram of the structure of the water absorbing component and the extruding component of the present invention; Figure 7 It is a schematic diagram of the structure of the air circulation assembly of the present invention; Figure 8 It is a schematic diagram of the structure of the drainage component and the toggle component of the present invention; Fig. 9 For the present invention Figure 1 A schematic diagram of the local enlarged structure at point A in the middle; Fig.10 For the present invention Figure 8 Schematic diagram of the local enlarged structure at point B in the middle.

[0020] In the figure: 1. Box body; 2. Printing roller; 3. Conveying roller; 4. Air outlet; 5. Cover plate; 101. Fan; 102. Cold water tank; 103. Chiller; 104. Cooling pipe network; 201, air supply pipe; 202, air blowing nozzle; 203, air intake pipe; 204, cooling air pipe; 301, replacement frame; 302, water-absorbing sponge; 401, pressure plate; 402, extrusion plate; 403, return spring; 501, driving roller; 502, rotating shaft; 503, eccentric wheel; 601, slope; 602, water outlet pipe; 603, push plate; 701, movable plate; 702, limit spring; 703, push rod; 704, screw feed mechanism. DETAILED DESCRIPTION

[0021] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] like Figures 1 to 10 As shown, this embodiment proposes an intermittent rotary printing machine with a cooling unit, including a box body 1, a printing roller 2 and a conveying roller 3, and also includes a cooling mechanism. Compared with the intermittent rotary printing machine in the prior art, the present invention conveys cold water to the interior of the cooling pipe network 104 and the cold water tank 102 through a water cooler, and at the same time blows cold air to the interior of the box body 1 through the fan 101 and the air supply pipe 201, so as to cool the printing roller 2 and the printed matter, reduce the deformation of the printed matter during the drying process, and ensure the printing quality. At the same time, the water vapor generated by the alternation of hot and cold is absorbed by the water-absorbing sponge 302, and the eccentric wheel 503 is driven to rotate by the printing roller 2 to push the extrusion plate 402 down, squeeze out the water in the water-absorbing sponge 302, and discharge the water through the outlet pipe 602 through the push of the push plate 603 and the slope of the slope 601.

[0023] like Figures 1 to 5As shown, the cooling mechanism is used to cool the box 1, and the cooling mechanism includes a cold water component, a fan 101 and a cold water tank 102. The cold water component is used to transport cold water to the inside of the box 1. The cold water component includes a cold water machine 103 and a cooling pipe network 104. The cooling pipe network 104 is arranged inside the box 1, and the cooling pipe network 104 is connected to the cold water machine 103. The fan 101 is arranged on the inner bottom wall of the box 1, and the cooling pipe network 104 is located above the fan 101. The cold water tank 102 is arranged outside the box 1, and the cooling pipe network 104 is connected to the cold water tank 102. The bottom of the cold water tank 102 is connected to a water inlet pipe, and the top of the cold water tank 102 is connected to a water outlet pipe 6 02, the water inlet pipe and the water outlet pipe 602 are both connected to the cooling network 104, the cooling network 104 is connected to the water inlet and the water outlet of the chiller 103, the chiller 103 produces cold water and transports it to the inside of the cooling network 104 through the water outlet, so as to cool the inside of the box 1, and then the water enters the inside of the cold water tank 102 through the water inlet pipe, so as to cool the outside of the box 1, thereby ensuring a low temperature environment for the printing roller 2, the conveying roller 3 and the printed matter, etc., and reducing the deformation of the printed matter caused by drying and heating, and the cold water in the cold water tank 102 flows back to the cooling network 104 through the water outlet pipe 602 and is sent back to the inside of the chiller 103 for circulating cooling.

[0024] like Figure 7 As shown, in order to increase the air flow rate and accelerate the heat dissipation, an air circulation component is also included, and the air circulation component includes an air supply pipe 201 and an air blowing nozzle 202. The air supply pipe 201 is provided with multiple, and the multiple air supply pipes 201 are arranged outside the printing roller 2 and the conveying roller 3 in a surrounding shape. A valve is arranged on the air supply pipe 201, and the air supply pipe 201 is connected to the air intake pipe 203. The air blowing nozzle 202 is provided with multiple, and the air blowing nozzle 202 is connected to the air supply pipe 201. A cold air pipe 204 is arranged inside the cold water tank 102, and the air supply pipe 201 is connected to the air intake pipe 203 through the cold air pipe 204, and the air intake pipe 203 is connected to the external air supply device The external air supply equipment enters the interior of the cold air pipe 204 through the air inlet pipe 203, the cold water in the cold water tank 102 cools the air in the cold air pipe 204, and the cold air enters the interior of the air supply pipe 201. The multiple air supply pipes 201 are opened in sequence through the valve, and one air supply pipe 201 is opened at a time. Cold air is blown to the printing roller 2 and the printed matter through the air blowing nozzle 202 to assist in cooling the printing roller 2 and the printed matter, and to cool the printed matter and the internal components of the printing machine at different angles, while accelerating the air flow in the box body 1, accelerating the flow of cold air in the box body 1, and accelerating the discharge of hot air in the box body 1.

[0025] like Figures 1 to 4As shown, in order to discharge the hot air in the box body 1, a plurality of air outlets 4 are opened on the top of the box body 1 for discharging the hot air. A cover plate 5 is provided on the top of the box body 1 for covering the air outlet 4. There is a gap between the cover plate 5 and the air outlet 4. Under the action of the fan 101 and the air supply pipe 201, cold air is blown to the printing roller 2 and the printed matter. At the same time, the density of the hot air is relatively small. The hot air generated by drying the ink rises and is discharged through the air outlet 4. The cover plate 5 is used to block the top of the air outlet 4 to prevent external impurities and dust from falling into the interior of the box body 1 through the air outlet 4 to contaminate the printed matter.

[0026] like Figures 1 to 6 As shown, in order to avoid moisture in the box body 1 caused by cold water, a water absorption component is also included, which includes a replacement frame 301 and a water absorption sponge 302. A replacement port is provided on the box body 1, and the replacement frame 301 is slidably arranged inside the replacement port. The water absorption sponge 302 is arranged inside the replacement frame 301, and the water absorption sponge 302 is located between the cooling pipe network 104 and the printing roller 2. The hot air generated by the dryer meets the cold air generated by the cooling pipe network 104, especially the surface temperature of the cooling pipe network 104 is low, and the hot air contacts the cooling pipe network 104 and condenses into water droplets, which rise under the action of the fan 101 and are absorbed by the water absorption sponge 302 to avoid water vapor wetting the printed matter. The water absorption sponge 302 can be taken out from the inside of the box body 1 by pulling the replacement frame 301, and the water absorption sponge 302 can be replaced or the water inside it can be squeezed out to ensure the water absorption effect of the water absorption sponge 302.

[0027] like Figures 1 to 6As shown, in order to squeeze out the water in the water-absorbing sponge 302, it also includes an extrusion component, which is used to squeeze out the water in the water-absorbing sponge 302. The extrusion component includes a pressure plate 401 and an extrusion plate 402. The pressure plate 401 is arranged inside the box body 1, and the pressure plate 401 is located below the water-absorbing sponge 302. A plurality of water drop holes are opened on the pressure plate 401. The extrusion plate 402 can be lifted and arranged inside the box body 1. The extrusion plate 402 is arranged inside the box body 1 through a reset spring 403. The extrusion plate 402 is located above the water-absorbing sponge 302. In order to realize the lifting and lowering of the extrusion plate 402, it also includes a lifting drive member, which is used to drive the extrusion plate 402 to lift and lower. The lifting drive member includes a driving roller 501, a rotating shaft 502 and an eccentric wheel 503. The driving roller 501 is rotatably arranged inside the box body 1, and the driving roller 501 contacts the printing roller 2. , the rotating shaft 502 is coaxially arranged on the driving roller 501, and the eccentric wheel 503 is arranged on the rotating shaft 502. The eccentric wheel 503 is in contact with the top of the squeezing plate 402. There is a certain friction damping between the driving roller 501 and the printing roller 2. The driving roller 501 will be driven to rotate during the rotation of the printing roller 2, thereby driving the eccentric wheel 503 to rotate. Under the action of the reset spring 403, the squeezing plate 402 is at a position away from the water-absorbing sponge 302. At this time, the side with a smaller radius of the eccentric wheel 503 is in contact with the squeezing plate 402. As the eccentric wheel 503 rotates, the squeezing plate 402 is lowered to squeeze the water-absorbing sponge 302, squeezing out the water inside the sponge and dropping it to the bottom of the box body 1 through the water drop hole. Then the eccentric wheel 503 rotates, and under the action of the reset spring 403, the squeezing plate 402 is always in contact with the eccentric wheel 503, and rises and falls with the rotation of the eccentric wheel 503.

[0028] It should be noted that the water-absorbing sponge 302 is made of porous material and is relatively thin, so that the cold air generated by the cooling pipe network 104 and the fan 101 can pass through, and the water in the water-absorbing sponge 302 can be squeezed out in time through the squeezing plate 402, which also reduces the obstruction of the water in the water-absorbing sponge 302 to the cold air.

[0029] like Figures 1 to 7As shown, in order to drain excess water, a drainage component is also included, and the drainage component is used to drain the water at the bottom of the box body 1. The drainage component includes a slope 601, an outlet pipe 602 and a push plate 603. The slope 601 is arranged on the inner bottom wall of the box body 1, and the outlet pipe 602 is connected to the bottom of the box body 1 near the lower side of the slope 601. The push plate 603 is movably arranged inside the box body 1, and the push plate 603 slides along the slope 601. To prevent the push plate 603 from blocking the water, a toggle component is also included, and the toggle component is used to toggle the push plate 603 to rotate. The toggle component includes a movable plate 701, a limit spring 702 and a push rod 703. The movable plate 701 is movably arranged inside the box body 1. A screw feeding mechanism 704 is arranged on the box body 1 for driving the movable plate 701 to move. The inclination angles of the screw and the slope 601 are adapted. The push plate 603 is rotatably arranged at the bottom of the movable plate 701, and the push plate 603 and the movable plate 701 A limit spring 702 is arranged between the movable plate 701 and the inclined slope 601, and a push rod 703 is arranged on the inner wall of the box body 1, and the push rod 703 is located on the side with a higher height of the inclined slope 601, and the push rod 703 contacts the push plate 603, and the falling water falls on the inclined slope 601 and falls along the inclined slope 601 to the outlet pipe 602 and flows out, and the movable plate 701 is driven to move back and forth along the inclined slope 601 under the action of the screw feeding mechanism 704, driving the push plate 603 to The water is pushed down to the water outlet pipe 602. When the push plate 603 moves to the higher side of the slope 601, the water accumulates on the side of the push plate 603 away from the water outlet pipe 602. When the push plate 603 moves to the push rod 703, as the moving plate 701 continues to move, the push rod 703 pushes the push plate 603 to rotate to compress the return spring 403. The water on the side of the push plate 603 away from the water outlet pipe 602 can flow down the slope 601 and be discharged, thereby reducing the residual water in the box body 1.

[0030] The working principle or use process of the intermittent rotary printing press with a cooling unit is as follows: The printing material is placed between the printing rollers 2 for printing, the dryer dries the ink on the printing material, the water cooler delivers cold water to the inside of the cooling pipe network 104, and then the cold water enters the inside of the cold water tank 102, the fan 101 blows air to the cooling pipe network, and the cold air passes through the water-absorbing sponge 302 to cool down the printing roller 2 and the printed matter, and at the same time, the air blowing pipe is controlled by the valve to open in sequence, blowing air to the printing roller 2 and the printed matter, and the hot air is discharged through the air outlet 4; As the printing roller 2 rotates, the eccentric wheel 503 is driven to rotate, and under the action of the return spring 403, the squeezing plate 402 is reciprocated and lifted along with the eccentric wheel 503, pressing the water-absorbing sponge 302, squeezing the water in the water-absorbing sponge 302 to the bottom of the box body 1, and the water falls along the slope 601 and is discharged through the water outlet pipe 602. The moving plate 701 is regularly driven by the lead screw feeding mechanism 704 to move along the slope 601, so that the push plate 603 pushes the water on the slope 601 off, and then the moving plate 701 drives the push plate 603 to move to the higher side of the slope 601. When it moves to the higher side of the slope 601, the push rod 703 pushes the push plate 603 to rotate, so that the water on the side of the push plate 603 away from the water outlet pipe 602 falls.

[0031] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An intermittent rotary printing machine with a cooling unit, comprising a housing (1), a printing roller (2) and a conveying roller (3), characterized in that: Also includes: A cooling mechanism, the cooling mechanism is used to cool the box (1), the cooling mechanism comprising: A cold water assembly, the cold water assembly being used to transport cold water into the interior of the box (1), the cold water assembly comprising: Chiller (103); A cooling pipe network (104), the cooling pipe network (104) being arranged inside the box (1), the cooling pipe network (104) being connected to the chiller (103); A fan (101), the fan (101) being arranged on the inner bottom wall of the box body (1), and the cooling pipe network (104) being located above the fan (101); A cold water tank (102), the cold water tank (102) being arranged outside the box body (1), and the cooling pipe network (104) being in communication with the cold water tank (102).

2. The intermittent rotary printing press with a cooling unit according to claim 1, characterized in that: Also included is a water absorbing component, the water absorbing component comprising: A replacement frame (301), wherein a replacement opening is provided on the box body (1), and the replacement frame (301) is slidably arranged inside the replacement opening; A water-absorbing sponge (302), wherein the water-absorbing sponge (302) is arranged inside the replacement frame (301), and the water-absorbing sponge (302) is located between the cooling pipe network (104) and the printing roller (2).

3. The intermittent rotary printing press with a cooling unit according to claim 2, characterized in that: It also includes a squeezing component, which is used to squeeze out the water in the water-absorbing sponge (302), and the squeezing component includes: A pressure plate (401), the pressure plate (401) being arranged inside the box body (1), the pressure plate (401) being located below the water-absorbing sponge (302), and a plurality of water-falling holes being provided on the pressure plate (401); A squeezing plate (402), the squeezing plate (402) being arranged inside the box body (1) in a liftable manner, and the squeezing plate (402) being located above the water-absorbing sponge (302).

4. The intermittent rotary printing press with a cooling unit according to claim 3, characterized in that: It also includes a lifting drive component, the lifting drive component is used to drive the extrusion plate (402) to lift, and the lifting drive component includes: A driving roller (501), the driving roller (501) being rotatably arranged inside the box (1), the driving roller (501) being in contact with the printing roller (2); A rotating shaft (502), the rotating shaft (502) being coaxially arranged on the driving roller (501); An eccentric wheel (503), wherein the eccentric wheel (503) is arranged on the rotating shaft (502), and the eccentric wheel (503) is in contact with the top end of the extrusion plate (402).

5. The intermittent rotary printing press with a cooling unit according to claim 4, characterized in that: Also included is an air circulation assembly, the air circulation assembly comprising: An air supply pipe (201), wherein a plurality of the air supply pipes (201) are provided, and the plurality of the air supply pipes (201) are arranged in a surrounding shape outside the printing roller (2) and the conveying roller (3), a valve is provided on the air supply pipe (201), and the air supply pipe (201) is connected to an air inlet pipe (203); An air blowing nozzle (202), wherein a plurality of the air blowing nozzles (202) are provided, and the air blowing nozzles (202) are connected to the air supply pipe (201).

6. The intermittent rotary printing press with a cooling unit according to claim 5, characterized in that: A cold air pipe (204) is provided inside the cold water tank (102), and the air supply pipe (201) is connected to the air intake pipe (203) via the cold air pipe (204).

7. The intermittent rotary printing press with a cooling unit according to claim 6, characterized in that: It also includes a drainage component, which is used to drain the moisture at the bottom of the box body (1), and the drainage component includes: A slope (601), wherein the slope (601) is arranged on the inner bottom wall of the box body (1); A water outlet pipe (602), the water outlet pipe (602) being connected to a lower side of the bottom of the box (1) close to the slope (601); A push plate (603), the push plate (603) is movably arranged inside the box (1), and the push plate (603) slides along the slope (601).

8. The intermittent rotary printing press with a cooling unit according to claim 7, characterized in that: It also includes a toggle assembly, which is used to toggle the push plate (603) to rotate, and the toggle assembly includes: A movable plate (701), the movable plate (701) being movably arranged inside the box body (1), and the push plate (603) being rotatably arranged at the bottom of the movable plate (701); A limit spring (702), wherein the limit spring (702) is provided between the push plate (603) and the movable plate (701) and is used to press the movable plate (701) against the slope (601); A push rod (703), the push rod (703) being arranged on the inner wall of the box body (1), the push rod (703) being located on the side of the slope (601) with a higher height, and the push rod (703) being in contact with the push plate (603).

9. The intermittent rotary printing press with a cooling unit according to claim 8, characterized in that: The top of the box body (1) is provided with a plurality of air outlets (4) for discharging hot air.

10. The intermittent rotary printing press with a cooling unit according to claim 9, characterized in that: A cover plate (5) is provided on the top of the box body (1) for covering the air outlet (4), and a gap exists between the cover plate (5) and the air outlet (4).

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