Printing machine with belt convenient to replace

Abstract

The utility model discloses a printing machine with a belt convenient to replace, which relates to the field of printing machines and comprises a base, a first support plate and an operation bin, the first support plate is welded at the top end of the base, and a second support plate is arranged at the front end of the first support plate above the base. And a servo motor is mounted on the outer side of the first supporting plate through a bolt. The sliding block pushes the limiting frame to move, so that the limiting frame cannot limit the second supporting plate, the second supporting plate is taken down from the outer side of the transmission shaft and the outer side of the fixing plate, the servo motor and the threaded rod drive the guide block and the push ring to move, the push ring pushes the belt body to move, and the belt body is detached and replaced. By arranging the servo motor, the threaded rod, the guide block, the push ring and the fixing plate, the belt of the printing machine can be conveniently and rapidly replaced, the whole printing machine does not need to be manually disassembled and reassembled, and then the replacement efficiency of the belt is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing machines, in particular to a printing machine which is convenient for replacing belts. Background Art

[0002] Decorative film is a new type of decorative material made of high molecular polymer as raw material, adding various additives, calendering and compounding. It can be compounded with wood, plastic board, aluminum plate, iron plate and other substrates to make multi-purpose decorative materials. It is widely used in household appliances, audio surface decoration, interior decoration, aircraft, ships, train interior decoration. In the process of manufacturing decorative film, printing machine is often used to print the surface of decorative film, thereby improving the aesthetics of decorative film. Printing machine is divided into embossing type and inkjet printing type.

[0003] When the existing printing machine is in use, the decorative film is transmitted by the belt driven by the transmission motor, the paint is sprayed onto the printing roller by the spray pump, and the pattern is then imprinted onto the decorative film by the printing roller. The printing machine uses paint for printing operations, and the paint is easy to spill onto the belt. The paint adheres to the outer wall of the belt, which is inconvenient to clean. The belt needs to be replaced regularly to prevent the paint on the belt from staining the decorative film. The belt is located on the inner side of the printing machine, and the outer shell of the printing machine needs to be disassembled, and the belt needs to be manually pulled out from the outer wall of the transmission roller before the belt can be replaced. Since the outer shell of the printing machine needs to be disassembled during the belt replacement process, and the belt needs to be manually pulled out from the outer wall of the transmission roller, this operation method is relatively time-consuming and labor-intensive, and has low efficiency. Utility Model Content

[0004] The utility model aims to provide a printing machine with an easy-to-replace belt, so as to solve the problem that the belts of printing machines currently on the market are not easy to replace, as mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a printing machine that is easy to replace the belt, comprising a base, a first support plate and an operating chamber, the top of the base is welded with the first support plate, the front end of the first support plate is located above the base and a second support plate is arranged, the outer side of the first support plate is installed with a servo motor by bolts, the top of the first support plate is welded with a connecting plate, the top of the connecting plate is welded with the operating chamber, the top of the operating chamber is installed with a hydraulic rod by bolts, the output end of the servo motor is connected to a threaded rod extending to the inner sides of the first support plate and the second support plate through a coupling, the outer wall of the threaded rod is sleeved with a guide block, the top of the guide block is welded with a push ring, the inner side of the first support plate is welded with two groups of fixing plates that penetrate the second support plate, and the ends of the two groups of fixing plates away from the first support plate are provided with sliding grooves.

[0006] Preferably, the inner walls of the two groups of sliding grooves are welded with fixing rods, the outer walls of the two groups of fixing rods are sleeved with two groups of limit frames extending to the outside of the fixed plate, the outer walls of the two groups of fixing rods located on the inner sides of the two groups of limit frames are sleeved with a first spring, and the outer walls of the four groups of limit frames are welded with sliding blocks extending to the outside of the sliding grooves.

[0007] Preferably, the outer wall of the first support plate is located on one side of the servo motor and a transmission motor is installed with bolts, two groups of transmission shafts are penetrated inside the first support plate, and the output end of the transmission motor is connected to one end of one group of the transmission shafts through a coupling, the outer walls of the two groups of transmission shafts are located on the inner sides of the first support plate and the second support plate, and transmission rollers are sleeved on the outer walls of the two groups of transmission rollers, and the belt body is sleeved on the outer walls.

[0008] Preferably, the output end of the hydraulic rod is connected to a protective frame by bolts, a paint bin is provided at the top of the protective frame located on one side of the hydraulic rod, an electric push rod is installed at the top inside the protective frame by bolts, the output end of the electric push rod is connected to an arc frame by bolts, a printing roller is provided on the inner side of the arc frame, an embossing motor is installed at one end of the arc frame by bolts, and the output end of the embossing motor is connected to the printing roller through a coupling, a spray pump is installed at one end of the paint bin by bolts, and the output end of the spray pump is connected to a paint delivery pipe extending to the inside of the arc frame.

[0009] Preferably, fixed blocks are welded to the inner walls on both sides of the operating compartment, an inspection door extending to the outside is provided inside the operating compartment, two groups of cross limit grooves are provided inside the inspection door, a connecting rod passing through the cross limit groove is sleeved on the inner wall of the fixed block, and a limiting rod is welded to the outer wall of the connecting rod.

[0010] Preferably, a second spring is sleeved on an outer wall of the connecting rod located on one side of the fixing block, and a pulling block is welded to one end of the connecting rod away from the fixing block.

[0011] Preferably, a connecting frame is welded on the inner side of the base, and a supporting frame is connected to the outer side of the connecting frame via a rotating shaft, a cleaning roller brush is arranged on the inner side of the top end of the supporting frame, and a card slot is provided at both ends of the cleaning roller brush inside the supporting frame, and a third spring is arranged inside both ends of the cleaning roller brush, and one end of two groups of the third springs are located inside the cleaning roller brush and a card rod extending to the inside of the card slot is arranged.

[0012] Preferably, an annular tooth groove is provided on the inner wall of one side of the connecting frame, a hexagonal groove is provided on the front end of the supporting frame, a limiting gear is arranged inside the annular tooth groove, a supporting rod extending to the inside of the hexagonal groove is welded to the front end of the limiting gear, one end of the supporting rod is located inside the hexagonal groove and a hexagonal block is welded thereto, and the outer wall of the supporting rod is located inside the hexagonal groove and is sleeved with a fourth spring.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. When the belt body of the printing machine is replaced, the limit frame is pushed to move by the slider, so that the limit frame cannot limit the second support plate, the second support plate is removed from the outside of the transmission shaft and the fixed plate, the guide block and the push ring are driven to move by the servo motor and the threaded rod, the push ring pushes the belt body to move, and the belt body is disassembled and replaced. By setting the servo motor, the threaded rod, the guide block, the push ring and the fixed plate, the belt of the printing machine is easy to replace quickly, and there is no need to manually disassemble and reassemble the printing machine as a whole, thereby improving the belt replacement efficiency.

[0015] 2. When the interior of the printing machine is maintained, the pull block is pulled outward, and the movement of the pull block drives the connecting rod and the limit rod to move. After the limit rod is separated from the cross limit groove, the connecting rod and the limit rod are rotated 90° by the pull block, and then the pull block is released. The second spring pushes the connecting rod, the limit rod and the pull block to move, so that the limit rod is separated from the inspection door, the inspection door is disassembled, and the interior of the operating chamber is maintained and fed, so that the printing machine is easy to maintain and can be maintained without the use of tools, which effectively improves the efficiency of disassembly and assembly of the printing machine.

[0016] 3. When the belt body of the printing machine needs to be cleaned, the cleaning roller brush is fixed to the inner side of the support frame by the clamping rod, the third spring and the clamping groove, and the hexagonal block, the support rod and the limit gear are pushed to move, so that the limit gear is separated from the annular tooth groove, and the hexagonal block pushes the fourth spring to compress and deform, and the support frame is rotated. The rotation of the support frame drives the cleaning roller brush to rotate to the outer wall of the bottom end of the belt body, and the hexagonal block, the support rod and the limit gear are pushed to move by the fourth spring, so that the limit gear is engaged with the annular tooth groove, and the angle of the connecting frame and the support frame is fixed, so that the top end of the cleaning roller brush is in contact with the bottom end of the belt body, so that when the belt body is transmitting the decorative film, the cleaning roller brush cleans the outer wall of the belt body, so that the dirty pigment adhered to the surface of the belt body is easy to clean, so as to prevent the dirty pigment from affecting the use of the printing machine and provide convenience for the production of decorative film. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the utility model;

[0018] Figure 2 It is a rear view of the utility model;

[0019] Figure 3 It is a right-side stereoscopic cutaway view of the utility model;

[0020] Figure 4 It is a top-down perspective cutaway view of the utility model;

[0021] Figure 5 This is a schematic diagram of the internal structure of the operating chamber of the utility model;

[0022] Figure 6 This is a schematic diagram of the connection between the cross limit groove and the limit rod of the utility model;

[0023] Figure 7 It is a schematic diagram of the connection between the base and the connecting frame of the utility model;

[0024] Figure 8 It is a schematic diagram of the internal structure of the connecting frame of the utility model.

[0025] In the figure: 1, base; 2, first support plate; 201, transmission motor; 202, transmission shaft; 203, transmission roller; 204, belt body; 3, second support plate; 4, servo motor; 401, threaded rod; 402, guide block; 403, push ring; 404, fixed plate; 405, sliding groove; 406, fixed rod; 407, limit frame; 408, first spring; 409, slider; 5, connecting plate; 6, operating compartment; 601, fixed block; 602, inspection door; 603, cross limit groove; 604, connecting rod; 605, limit Rod; 606, second spring; 607, pull block; 7, hydraulic rod; 701, protective frame; 702, pigment bin; 703, electric push rod; 704, arc frame; 705, printing roller; 706, embossing motor; 707, spray pump; 708, pigment delivery pipe; 8, connecting frame; 801, support frame; 802, cleaning roller brush; 803, slot; 804, third spring; 805, clamping rod; 806, annular tooth groove; 807, hexagonal slot; 808, limit gear; 809, support rod; 810, hexagonal block; 811, fourth spring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The utility model provides a technical solution: a printing machine that is easy to replace a belt, comprising a base 1, a first support plate 2 and an operating chamber 6, the top of the base 1 is welded with the first support plate 2, the front end of the first support plate 2 is located above the base 1 and is provided with a second support plate 3, the outer side of the first support plate 2 is installed with a servo motor 4 by bolts, the top of the first support plate 2 is welded with a connecting plate 5, the top of the connecting plate 5 is welded with an operating chamber 6, the top of the operating chamber 6 is installed with a hydraulic rod 7 by bolts, the output end of the servo motor 4 is connected to a threaded rod 401 extending to the inner sides of the first support plate 2 and the second support plate 3 through a coupling, the outer wall of the threaded rod 401 is sleeved with a guide block 402, the top of the guide block 402 is welded with a push ring 403, the inner side of the first support plate 2 is welded with two groups of fixed plates 404 that penetrate the second support plate 3, and the ends of the two groups of fixed plates 404 away from the first support plate 2 are both provided with sliding grooves 405.

[0028] See also Figure 1 , Figure 3 , Figure 4 and Figure 5 It can be seen that the inner walls of the two groups of sliding grooves 405 are welded with fixed rods 406, the outer walls of the two groups of fixing rods 406 are sleeved with two groups of limit frames 407 extending to the outside of the fixed plate 404, the outer walls of the two groups of fixing rods 406 are located on the inner sides of the two groups of limit frames 407 and are sleeved with first springs 408, the outer walls of the four groups of limit frames 407 are welded with sliders 409 extending to the outside of the sliding grooves 405, the outer wall of the threaded rod 401 is threadedly connected to the inner wall of the guide block 402, the outer wall of the limit frame 407 is slidably connected to the inner wall of the sliding groove 405, and the inner wall of the limit frame 407 is slidably connected to the outer wall of the fixing rod 406.

[0029] In specific implementation, when the belt body 204 of the printing machine needs to be replaced, the operator pushes the slider 409, and the slider 409 drives the limit frame 407 to move, and the limit frame 407 slides on the inner wall of the sliding groove 405, and the limit frame 407 slides on the outer wall of the fixed rod 406. The limit frame 407 pushes the first spring 408 to compress and deform, and the limit frame 407 moves to the inner side of the sliding groove 405, so that the limit frame 407 cannot limit the second support plate 3, and the second support plate 3 is removed from the outer side of the transmission shaft 202 and the fixed plate 404, and the forward rotation mode of the servo motor 4 is started. The output end of 4 drives the threaded rod 401 to rotate forwardly through the coupling, and the threaded rod 401 rotates forwardly to drive the guide block 402 threadedly connected to the threaded rod 401 to move, and the movement of the guide block 402 drives the push ring 403 to move, and the push ring 403 slides on the outer wall of the transmission roller 203, and the push ring 403 pushes the belt body 204 to move, and the belt body 204 is replaced. By arranging the servo motor 4, the threaded rod 401, the guide block 402, the push ring 403 and the fixing plate 404, the belt of the printing machine is easy to replace quickly, and there is no need to manually disassemble and reassemble the printing machine as a whole, thereby improving the belt replacement efficiency.

[0030] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 It can be seen that the outer wall of the first support plate 2 is located on one side of the servo motor 4 and is equipped with a transmission motor 201 by bolts. Two groups of transmission shafts 202 are arranged through the inside of the first support plate 2, and the output end of the transmission motor 201 is connected to one end of a group of transmission shafts 202 through a coupling. The outer walls of the two groups of transmission shafts 202 are located on the inner sides of the first support plate 2 and the second support plate 3 and are both sleeved with transmission rollers 203. The outer walls of the two groups of transmission rollers 203 are sleeved with a belt body 204, and the inner wall of the push ring 403 is slidably connected to the outer wall of the transmission roller 203.

[0031] In specific implementation, when the decorative film needs to be conveyed, the decorative film is placed on the top of the belt body 204, the transmission motor 201 is started, and the output end of the transmission motor 201 drives a group of transmission shafts 202 to rotate through a coupling, and the transmission shaft 202 drives a group of transmission rollers 203, the belt body 204 and another group of transmission rollers 203 and the transmission shaft 202 to rotate, so that the belt body 204 conveys the decorative film.

[0032] See also Figure 1 , Figure 3 and Figure 5It can be seen that the output end of the hydraulic rod 7 is connected to the protective frame 701 by bolts, and a pigment bin 702 is provided at the top of the protective frame 701 on one side of the hydraulic rod 7. An electric push rod 703 is installed at the top inside the protective frame 701 by bolts, and the output end of the electric push rod 703 is connected to the arc frame 704 by bolts. A printing roller 705 is provided on the inner side of the arc frame 704, and an embossing motor 706 is installed at one end of the arc frame 704 by bolts, and the output end of the embossing motor 706 is connected to the printing roller 705 through a coupling, and a spray pump 707 is installed at one end of the pigment bin 702 by bolts, and the output end of the spray pump 707 is connected to a pigment delivery pipe 708 extending to the inside of the arc frame 704, and the outer wall of the protective frame 701 is slidably connected to the inner wall of the operating bin 6.

[0033] In specific implementation, when the printing machine needs to print the decorative film, the hydraulic rod 7 starts the extension mode, the hydraulic rod 7 pushes the protective frame 701 to descend, so that the bottom end of the protective frame 701 is fitted with the top of the first support plate 2 and the second support plate 3, and the decorative film during the printing process is protected by the protective frame 701, the electric push rod 703 starts the extension mode, the electric push rod 703 pushes the arc frame 704 and the printing roller 705 to descend, so that the bottom end of the printing roller 705 is fitted with the top of the decorative film, the spray pump 707 is started, and the pigment inside the pigment bin 702 is transported to the inside of the arc frame 704 through the spray pump 707 and the pigment delivery pipe 708, so that the pigment adheres to the outer wall of the printing roller 705, the belt body 204 conveys the decorative film, the embossing motor 706 is started, and the output end of the embossing motor 706 drives the printing roller 705 to rotate through the coupling, and the printing roller 705 prints the surface of the decorative film.

[0034] See also Figure 2 , Figure 3 and Figure 6 It can be seen that fixed blocks 601 are welded to the inner walls on both sides of the operating chamber 6, and an inspection door 602 extending to the outside is arranged inside the operating chamber 6. Two groups of cross limit grooves 603 are opened inside the inspection door 602. The inner wall of the fixed block 601 is sleeved with a connecting rod 604 that passes through the cross limit groove 603. A limiting rod 605 is welded to the outer wall of the connecting rod 604. The outer wall of the connecting rod 604 is located on one side of the fixed block 601 and is sleeved with a second spring 606. A pulling block 607 is welded to the end of the connecting rod 604 away from the fixed block 601. The outer wall of the connecting rod 604 is slidably connected to the inner wall of the fixed block 601, and the outer wall of the connecting rod 604 is snap-connected with the inner wall of the cross limit groove 603.

[0035] During specific implementation, when it is necessary to maintain and add materials to the interior of the printing machine, the operator pulls the pull block 607 outward, and the movement of the pull block 607 drives the connecting rod 604 to move, and the connecting rod 604 slides on the inner wall of the fixed block 601, and the movement of the connecting rod 604 drives the limiting rod 605 to separate from the cross limiting groove 603, and the connecting rod 604 pushes the second spring 606 to compress and deform, and rotates the connecting rod 604 and the limiting rod 605 90° through the pull block 607, and then releases the pull block 607, and the second spring 606 loses the limit and resets, and the second spring 606 pushes the connecting rod 604, the limiting rod 605 and the pull block 607 to move, so that the limiting rod 605 is separated from the inspection door 602, the inspection door 602 is disassembled, and the interior of the operating chamber 6 is maintained and added, so that the printing machine is easy to maintain, and the printing machine can be maintained without using tools, which effectively improves the efficiency of disassembly and assembly of the printing machine.

[0036] See also Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 7 and Figure 8 It can be seen that a connecting frame 8 is welded on the inner side of the base 1, and a supporting frame 801 is connected to the outer side of the connecting frame 8 through a rotating shaft. A cleaning roller brush 802 is arranged on the inner side of the top of the supporting frame 801, and a card slot 803 is provided at both ends of the cleaning roller brush 802 inside the supporting frame 801, and a third spring 804 is arranged inside both ends of the cleaning roller brush 802, and one end of the two sets of third springs 804 is located inside the cleaning roller brush 802, and a card rod 805 extending to the inside of the card slot 803 is arranged, and an annular tooth groove 806 is arranged on the inner wall of one side of the connecting frame 8, and a hexagonal groove 807 is arranged at the front end of the supporting frame 801, and a limit gear 808 is arranged inside the annular tooth groove 806. 08. A support rod 809 extending to the inside of the hexagonal groove 807 is welded to the front end of the limiting gear 808. One end of the support rod 809 is located inside the hexagonal groove 807 and is welded with a hexagonal block 810. The outer wall of the support rod 809 is located inside the hexagonal groove 807 and is sleeved with a fourth spring 811. One end of the clamping rod 805 is engaged with the inside of the clamping groove 803, and the outer wall of the clamping rod 805 is slidably connected to the inner wall of the cleaning roller brush 802. The inside of the limiting gear 808 is engaged with the inside of the annular tooth groove 806, the outer wall of the hexagonal block 810 is slidably connected to the inner wall of the hexagonal groove 807, and the outer wall of the support rod 809 is slidably connected to the inner wall of the support frame 801.

[0037] When the cleaning roller brush 802 is in a state of being moved, the operator pushes the clamping rods 805 at both ends of the cleaning roller brush 802 toward the inside of the cleaning roller brush 802, and the clamping rods 805 slide on the inner wall of the cleaning roller brush 802. At the same time, the clamping rods 805 push the third spring 804 to be compressed and deformed, and the cleaning roller brush 802 is placed on the inner side of the support frame 801, and the clamping rods 805 are released. The third spring 804 loses its limit and resets. The third spring 804 pushes the clamping rod 805 to move, so that the clamping rod 805 limits the slot 803, fixes the support frame 801 and the cleaning roller brush 802, and pushes the hexagonal block 810 to move. The hexagonal block 810 slides on the inner wall of the hexagonal slot 807, and the hexagonal block 810 pushes the support rod 809 and the limiting gear 808 to move. The limiting gear 808 is separated from the annular tooth groove 806, and the hexagonal block 810 pushes The fourth spring 811 is compressed and deformed to rotate the support frame 801. The rotation of the support frame 801 drives the cleaning roller brush 802 to rotate to the outer wall of the bottom end of the belt body 204, and the hexagonal block 810 is loosened. The fourth spring 811 loses the limit and resets. The fourth spring 811 pushes the hexagonal block 810, the support rod 809 and the limiting gear 808 to move, so that the limiting gear 808 is engaged with the annular tooth groove 806. The angle of the connecting frame 8 and the support frame 801 is fixed by the limiting gear 808 and the annular tooth groove 806, so that the top end of the cleaning roller brush 802 is in contact with the bottom end of the belt body 204, so that when the belt body 204 is transmitting the decorative film, the cleaning roller brush 802 cleans the outer wall of the belt body 204, so that the dirty pigment adhered to the surface of the belt body 204 is easy to clean, preventing the dirty pigment from affecting the use of the printing machine, and providing convenience for the production of decorative film.

[0038] To sum up: when the printing machine is in use, the decorative film is placed on the top of the belt body 204, and the transmission motor 201 drives the transmission shaft 202, the transmission roller 203 and the belt body 204 to rotate, and the belt body 204 transmits the decorative film, and the electric push rod 703 pushes the arc frame 704 and the printing roller 705 to descend, so that the bottom end of the printing roller 705 is in contact with the top of the decorative film, and the pigment in the pigment bin 702 is transported to the inside of the arc frame 704 through the spray pump 707 and the pigment delivery pipe 708, so that the pigment adheres to the outer wall of the printing roller 705, and the output end of the embossing motor 706 drives the printing roller 705 to rotate through the coupling, and the printing roller 705 prints the surface of the decorative film on the top of the belt body 204.

[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A printing machine for convenient belt replacement, comprising a base (1), a first support plate (2) and an operating chamber (6), characterized in that: A first support plate (2) is welded to the top of the base (1); a second support plate (3) is arranged at the front end of the first support plate (2) above the base (1); a servo motor (4) is installed on the outer side of the first support plate (2) by means of bolts; a connecting plate (5) is welded to the top of the first support plate (2); an operating chamber (6) is welded to the top of the connecting plate (5); a hydraulic rod (7) is installed on the top of the operating chamber (6) by means of bolts; an output end of the servo motor (4) is connected to a threaded rod (401) extending to the inner sides of the first support plate (2) and the second support plate (3) by means of a coupling; a guide block (402) is sleeved on the outer wall of the threaded rod (401); a push ring (403) is welded to the top of the guide block (402); two groups of fixing plates (404) penetrating the second support plate (3) are welded to the inner side of the first support plate (2); a sliding groove (405) is provided at one end of the two groups of fixing plates (404) away from the first support plate (2).

2. A printing machine with easy belt replacement according to claim 1, characterized in that: The inner walls of the two groups of sliding grooves (405) are welded with fixing rods (406), the outer walls of the two groups of fixing rods (406) are sleeved with two groups of limiting frames (407) extending to the outside of the fixing plate (404), the outer walls of the two groups of fixing rods (406) are located on the inner sides of the two groups of limiting frames (407) and are sleeved with first springs (408), and the outer walls of the four groups of limiting frames (407) are welded with sliding blocks (409) extending to the outside of the sliding grooves (405).

3. A printing machine with easy belt replacement according to claim 1, characterized in that: The outer wall of the first support plate (2) is located on one side of the servo motor (4) and is equipped with a transmission motor (201) by means of bolts; two groups of transmission shafts (202) are provided inside the first support plate (2), and the output end of the transmission motor (201) is connected to one end of one group of the transmission shafts (202) by means of a coupling; the outer walls of the two groups of transmission shafts (202) are located on the inner sides of the first support plate (2) and the second support plate (3) and are both provided with transmission rollers (203); the outer walls of the two groups of transmission rollers (203) are provided with belt bodies (204).

4. A printing machine with easy belt replacement according to claim 1, characterized in that: The output end of the hydraulic rod (7) is connected to a protective frame (701) by bolts; a pigment bin (702) is arranged at the top of the protective frame (701) on one side of the hydraulic rod (7); an electric push rod (703) is installed at the top of the inside of the protective frame (701) by bolts; the output end of the electric push rod (703) is connected to an arc frame (704) by bolts; a printing roller (705) is arranged on the inner side of the arc frame (704); an embossing motor (706) is installed at one end of the arc frame (704) by bolts, and the output end of the embossing motor (706) is connected to the printing roller (705) by a coupling; a spray pump (707) is installed at one end of the pigment bin (702) by bolts; and the output end of the spray pump (707) is connected to a pigment delivery pipe (708) extending into the inside of the arc frame (704).

5. A printing machine with easy belt replacement according to claim 1, characterized in that: The inner walls on both sides of the operating chamber (6) are welded with fixing blocks (601), the interior of the operating chamber (6) is provided with an inspection door (602) extending to the outside, the interior of the inspection door (602) is provided with two groups of cross limit grooves (603), the inner wall of the fixing block (601) is provided with a connecting rod (604) passing through the cross limit groove (603), and the outer wall of the connecting rod (604) is welded with a limiting rod (605).

6. A printing machine with easy belt replacement according to claim 5, characterized in that: The outer wall of the connecting rod (604) is located on one side of the fixing block (601) and is sleeved with a second spring (606). The end of the connecting rod (604) away from the fixing block (601) is welded with a pulling block (607).

7. A printing machine with easy belt replacement according to claim 1, characterized in that: A connecting frame (8) is welded to the inner side of the base (1); the outer side of the connecting frame (8) is connected to a supporting frame (801) via a rotating shaft; a cleaning roller brush (802) is arranged on the inner side of the top end of the supporting frame (801); a clamping groove (803) is provided at both ends of the cleaning roller brush (802) inside the supporting frame (801); third springs (804) are arranged inside both ends of the cleaning roller brush (802); and one end of two groups of the third springs (804) are arranged inside the cleaning roller brush (802) and are provided with a clamping rod (805) extending to the inside of the clamping groove (803).

8. A printing machine with easy belt replacement according to claim 7, characterized in that: An inner wall of one side of the connecting frame (8) is provided with an annular tooth groove (806), and the front of the supporting frame (801) is provided with a tooth groove (806). A hexagonal groove (807) is provided at the end, and a limit gear (808) is provided inside the annular tooth groove (806). A support rod (809) extending into the hexagonal groove (807) is welded to the front end of the limit gear (808). One end of the support rod (809) is located inside the hexagonal groove (807) and is welded with a hexagonal block (810). The outer wall of the support rod (809) is located inside the hexagonal groove (807) and is sleeved with a fourth spring (811).

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