Multifunctional compound machine for multi-color printing and coloring

Abstract

The invention relates to the field of multi-color printing, and discloses a multi-color printing and painting multifunctional compound machine which comprises a multi-color printing machine, an ink storage box, an adding opening, a guide pipe, an ink adding opening, a guide shaft, a pressing roller, a printing roller, a supporting column, an ink scraping knife rest, a rotating frame, an ink fountain and the like. A supporting column is arranged in the multicolor printing machine, a plurality of ink storage boxes are installed on the supporting column, colors of ink stored in different ink storage boxes are different, adding openings are formed in the tops of the ink storage boxes, and guide pipes are fixedly connected to the bottoms of the ink storage boxes. Double ink grooves are formed in the device, only one ink groove is used every time printing is conducted, the ink grooves in the device can move so that the ink grooves can be driven to rapidly move away from the bottom of the printing roller and be cleaned after printing is completed, and in the process that the ink grooves are driven to move away from the bottom of the printing roller, the sliding limiting frames can limit the states of the ink grooves through the sliding limiting blocks; the ink fountain is prevented from colliding with the printing roller, and the function of rapidly cleaning and replacing the ink fountain is achieved.

Description

Technical Field

[0001] The invention relates to the field of multi-color printing, and in particular to a multifunctional compound machine for multi-color printing and coloring. Background Art

[0002] In the packaging and printing industry, gravure printing machines are widely used because of their simple structure, fast printing speed, thick and bright ink layer, and high printing plate durability. Usually, multiple gravure printing machines are connected for multi-color printing.

[0003] During the printing process, the gravure plate roller is fixed on the gravure printing machine and penetrates into the ink tank. At present, the ink tank in the gravure printing machine is usually fixed on the frame and cannot be moved. The substrate passes between the printing roller and the pressure roller. The printing roller rotates in the ink tank, so that the printing ink fills the groove of the printing roller. The scraper scrapes off the corresponding ink, and then the gravure plate image or text is transferred to the substrate through the pressure roller to complete the printing process.

[0004] After printing is completed, in order to avoid the mixing of different colors of ink during the next printing, which will cause the color of the printed product to be incorrect, it is usually necessary to remove the ink tank from the equipment. After the ink tank is removed, the worker uses a scraper to clean the residual ink inside the ink tank. After cleaning, the ink tank is reinstalled in the equipment for use. Since the gap between the printing roller and the ink tank is small, the ink tank may come into contact with the printing roller when moving during the manual removal or installation of the ink tank, thereby causing damage to the printing roller and the ink tank, affecting the subsequent printing quality. In the existing multi-color printing process, multiple ink tanks are required, and each ink tank needs to be removed and cleaned. Summary of the invention

[0005] The present invention provides a multifunctional compound machine for multi-color printing and coloring, which can quickly replace ink tanks and automatically clean the ink tanks, so as to solve the problem that the ink tanks may come into contact with printing rollers during manual removal of ink tanks, thereby damaging the printing rollers and ink tanks and affecting the subsequent printing quality.

[0006] The technical scheme of the present invention is: a multifunctional compound machine for multi-color printing and coating, comprising a multi-color printing machine, an ink storage box, an addition port, a conduit, an ink addition port, a guide shaft, a pressure roller, a printing roller, a support column, an ink scraper holder, a rotating frame, an ink tank, a rotating mechanism and a cleaning mechanism. The multi-color printing machine is provided with a support column, an ink storage box is installed on the support column, a adding port is opened on the top of the ink storage box, the bottom of the ink storage box is fixedly connected to the conduit, the other end of the conduit is fixedly connected to the ink filling port, the ink filling port is located at the top of the ink tank, the support column is rotatably connected with the guide shaft, the pressure roller and the printing roller, the substrate passes between the pressure roller and the printing roller, and then is sent outward through the guide shaft, the support column is fixedly connected with the ink scraper holder, the ink scraper is installed on the ink scraper holder, the support column is rotatably connected with the rotating frame, a control motor is installed on the support column, the output shaft of the control motor is fixedly connected to the rotating frame, the ink tank is installed on the rotating frame, the ink tank is used to hold ink for printing, the rotating mechanism is used to move the ink tank away from the bottom of the printing roller, and the cleaning mechanism is used to scrape off the ink residual on the bottom surface of the ink tank.

[0007] Preferably, the rotating mechanism includes a first torsion spring, a sliding limit block, a limit spring, a fixed rod and a limit assembly. The ink trough and the rotating frame are connected by the first torsion spring, and the two ends of the first torsion spring are respectively fixed on the ink trough and the rotating frame. A sliding groove is provided at the end of the rotating shaft of the ink trough, and a fixed rod is fixed in the sliding groove at the end of the rotating shaft of the ink trough. The fixed rod is slidably connected with a sliding limit block, and the sliding limit block and the rotating shaft of the ink trough are connected by the limit spring. The limit assembly is installed on the support column, and the limit assembly limits the state of the ink trough through the sliding limit block.

[0008] Preferably, the limit assembly includes a fixed frame, a sliding limit frame, a return spring, a sliding limit frame and a support spring. The bottom end of the support column is fixedly connected to the fixed frame, the sliding limit frame is slidably connected to the fixed frame, the sliding limit frame and the fixed frame are connected via the return spring, the sliding limit frame is slidably connected inside the sliding limit frame, and the sliding limit frame and the sliding limit frame are connected via the support spring.

[0009] Preferably, the cleaning mechanism includes a control cylinder, a sliding frame, a cleaning guide rail, a fixed guide rail, a sliding cleaning frame, a cleaning spring, a connecting frame, a cleaning knife and an unlocking component. The control cylinder is installed on the fixed frame, the sliding frame is slidably connected to the fixed frame, the telescopic rod of the control cylinder is connected to the sliding frame, the cleaning guide rail and the fixed guide rail are fixed to the sliding frame, the sliding cleaning frame is slidably connected in the fixed guide rail, the sliding cleaning frame and the sliding frame are connected through a cleaning spring, the sliding cleaning frame is fixed to the connecting frame, the end of the connecting frame is slidably set in the cleaning guide rail, and the cleaning knife is installed on the connecting frame.

[0010] Preferably, the unlocking assembly includes a moving push rod, a sliding block, a return spring, a wedge block and an unlocking block. The moving push rod is fixed to the sliding frame, the sliding block is slidably connected to the support column through a guide rod, the sliding block and the guide rod are connected through a return spring, the sliding block is fixed to the sliding block, and the unlocking block is slidably connected to the sliding block.

[0011] Preferably, it further comprises a blocking rod and a buffer spring, the blocking rod is fixedly connected to the sliding blocking frame, and the unlocking block is connected to the sliding blocking frame via the buffer spring.

[0012] Preferably, it also includes a lifting limit frame, a connecting spring, a transmission gear, a rotation adjustment block and a second torsion spring. The lifting limit frame is slidably connected to the support column, and the lifting limit frame and the support column are connected through a connecting spring. The transmission gear is fixed to the rotating shaft of the ink tank, and the support column is rotatably connected to a rotation adjustment block. The rotation adjustment block is provided with teeth, and the rotation adjustment block and the support column are connected through a second torsion spring.

[0013] Preferably, a limit plate is further included, and the support column is fixedly connected with the limit plate, and the limit plate is used to block the rotation of the adjustment block.

[0014] The present invention has the following advantages: 1. Double ink tanks are arranged in the device, and only one of the ink tanks is used each time printing, and the ink tank in the device can be moved to drive the ink tank to quickly move away from the bottom of the printing roller after printing is completed. When the rotating frame drives the ink tank to move away from the bottom of the printing roller, the sliding limit frame limits the ink tank to prevent the rear wall of the ink tank from swinging upward with the rotation of the rotating frame, thereby preventing the ink tank from colliding with the printing roller and being damaged. The ink tank is then cleaned by a cleaning mechanism. After cleaning, the cleaned ink tank is rotated to a state where the opening is facing downward, which can prevent ink splashed or debris dropped during the use of the equipment from falling into it, and the other unused ink tank is sent to the bottom of the printing roller, thereby realizing the function of automatically cleaning the ink tank and sending the new ink tank to the printing roller for rapid subsequent printing.

[0015] 2. During the printing process, the sliding limit frame limits the position of the ink slot by means of the sliding limit block to prevent the ink slot from shaking due to the influence of the ink during the printing process, thereby ensuring that the printing roller can always be in contact with the ink to ensure the printing effect.

[0016] 3. Before cleaning the ink slot, the sliding limit frame is disengaged from the sliding limit block, and the used ink slot is driven by the corresponding first torsion spring to rotate, and at the same time, another unused ink slot is driven to rotate through the transmission gear and the rotating adjustment block. When the new ink slot is sent to the bottom of the printing roller, the lifting limit frame and the sliding limit frame cooperate to keep the unused ink slot open upward, which also prevents the unused ink slot from contacting the printing roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a structural schematic diagram of the ink storage box of the present invention.

[0019] Figure 3 It is a schematic structural diagram of the rear side of the printing assembly of the present invention.

[0020] Figure 4 It is a schematic structural diagram of the rotating frame of the present invention.

[0021] Figure 5 It is a structural schematic diagram of the fixing frame of the present invention.

[0022] Figure 6 It is a structural schematic diagram of the ink tank of the present invention.

[0023] Figure 7 It is a structural schematic diagram of the sliding limit frame of the present invention.

[0024] Figure 8 It is a schematic structural diagram of the present invention after the rotating frame drives the ink tank to rotate 90 degrees.

[0025] Fig. 9 It is a structural schematic diagram of the sliding frame of the present invention.

[0026] Fig.10 It is a structural schematic diagram of the sliding retaining frame of the present invention.

[0027] Fig.11 It is a structural schematic diagram of the limiting plate of the present invention.

[0028] In the accompanying drawings: 1, multi-color printing press, 101, ink storage box, 1011, adding port, 1012, guide tube, 1013, ink adding port, 102, guide shaft, 103, pressure roller, 104, printing roller, 105, support column, 1051, lifting limit frame, 1052, connecting spring, 106, ink scraper holder, 2, rotating frame, 201, ink tank, 202, first torsion spring, 203, transmission gear, 204, sliding limit block, 205, limit spring, 206, fixing rod, 3, fixing frame, 301, sliding limit Frame, 302, return spring, 303, sliding limit frame, 304, support spring, 4, control cylinder, 401, sliding frame, 4011, cleaning guide rail, 402, fixed guide rail, 403, sliding cleaning frame, 404, cleaning spring, 405, connecting frame, 406, cleaning knife, 407, moving push rod, 5, sliding stop frame, 501, return spring, 502, stop rod, 503, wedge block, 504, unlocking block, 505, buffer spring, 6, limit plate, 601, rotation adjustment block, 602, second torsion spring. DETAILED DESCRIPTION

[0029] The above scheme is further described below in conjunction with specific examples. It should be understood that these examples are used to illustrate the present application and are not limited to the scope of the present application. The implementation conditions adopted in the examples can be further adjusted according to the conditions of the specific manufacturer, and the implementation conditions not specified are usually the conditions in conventional experiments.

[0030] Embodiment 1: A multifunctional compound machine for multi-color printing and coloring, such as Figure 1-Figure 11 As shown, it includes a multi-color printing machine 1, an ink storage box 101, an addition port 1011, a conduit 1012, an ink addition port 1013, a guide shaft 102, a pressure roller 103, a printing roller 104, a support column 105, an ink scraper frame 106, a rotating frame 2, an ink tank 201, a rotating mechanism and a cleaning mechanism. The multi-color printing machine 1 is provided with a support column 105, and an ink storage box 101 is installed on the support column 105. There are multiple ink storage boxes 101, and the inks stored in different ink storage boxes 101 have different colors. The top of the ink storage box 101 is provided with an addition port 1011, the bottom of the ink storage box 101 is fixedly connected to the conduit 1012, and the other end of the conduit 1012 is fixedly connected to the ink addition port 1013, and the ink addition port 1013 is located at the top of the ink tank 201. The ink in the ink storage box 101 flows from the ink addition port 1013 to the ink tank through the conduit 1012 In 201, the guide shaft 102, the pressure roller 103 and the printing roller 104 are rotatably connected on the support column 105, the substrate passes between the pressure roller 103 and the printing roller 104, and then is sent out through the guide shaft 102, the support column 105 is fixedly connected to the ink scraper frame 106, the ink scraper is installed on the ink scraper frame 106, the support column 105 is rotatably connected to the rotating frame 2, the support column 105 is installed with a control motor, the output shaft of the control motor is fixedly connected to the rotating frame 2, the rotating frame 2 is installed with an ink tank 201, the ink tank 201 is used to hold ink for printing, an ink discharge port is opened in the middle of the front side wall of the ink tank 201, the inside of the front side wall of the ink tank 201 is an inclined surface inclined to the ink discharge port, the rotating mechanism is used to move the ink tank 201 away from the bottom of the printing roller 104, and the cleaning mechanism is used to scrape off the ink remaining on the bottom surface of the ink tank 201.

[0031] A plurality of printing components are arranged in the multi-color printing machine 1, and each printing component prints ink of a different color on a substrate. Before printing, the substrate is passed between the pressure roller 103 and the printing roller 104, and then the substrate is sent out around the guide shaft 102, and a scraper is installed on the scraper holder 106 so that the scraper fits the printing roller 104, and a switch on the ink filling port 1013 is turned on, so that the ink in the ink storage tank 101 flows into the ink tank 201 from the ink filling port 1013 through the conduit 1012. At this time, the ink discharge port on the front side wall of the ink tank 201 is blocked by a baffle. When the ink in the ink tank 201 is added to the printing height, the switch at the ink filling port 1013 is closed, and at this time, the bottom end of the printing roller 104 contacts with the ink, and then the multi-color printing machine 1 is started to print. The printing process is the existing technology, and the printing is completed. After completion, the equipment is closed and the baffle is pulled out from the ink discharge port opened on the front side wall of the ink tank 201. Most of the ink in the ink tank 201 flows out from the ink discharge port, and then the rotating mechanism is started. The rotating mechanism drives the rotating frame 2 to rotate and move the ink tank 201 away from the bottom of the printing roller 104. The rotating mechanism drives the rotating frame 2 to rotate 90 degrees and then stops. At this time, the cleaning mechanism is started. The cleaning mechanism removes the ink remaining on the bottom surface of the ink tank 201 to achieve the function of moving the ink tank 201 away from the bottom of the printing roller 104 and quickly cleaning the residual ink therein. After cleaning, the rotating mechanism drives the rotating frame 2 to rotate 90 degrees again, and a new ink tank 201 will be sent to the bottom of the printing roller 104. The cleaned ink tank 201 is turned to a state with the outlet facing downward to ensure that the ink remaining on the inner wall of the ink tank 201 can fall downward.

[0032] Embodiment 2: Based on embodiment 1, Figure 3-Figure 8 As shown, the rotating mechanism includes a first torsion spring 202, a sliding limit block 204, a limit spring 205, a fixed rod 206 and a limit assembly. The ink tank 201 is connected to the rotating frame 2 through the first torsion spring 202. The two ends of the first torsion spring 202 are respectively fixed to the ink tank 201 and the rotating frame 2. A sliding groove is provided at the end of the rotating shaft of the ink tank 201. A fixed rod 206 is fixed in the sliding groove at the end of the rotating shaft of the ink tank 201. The sliding limit block 204 is slidably connected to the fixed rod 206. 04, the sliding limit block 204 slides in the sliding groove on the rotating shaft of the ink tank 201, the sliding limit block 204 and the rotating shaft of the ink tank 201 are connected through the limit spring 205, the limit spring 205 is sleeved outside the fixed rod 206, one end of the limit spring 205 is fixed on the sliding limit block 204, and the other end is fixed on the rotating shaft of the ink tank 201, and a limit component is installed on the support column 105, and the limit component limits the state of the ink tank 201 through the sliding limit block 204.

[0033] When the ink tank 201 rotates to the bottom of the printing roller 104, the limit spring 205 pushes the sliding limit block 204 out of the slide groove at the end of the ink tank 201 shaft, and the limit component is stuck on the outside of the sliding limit block 204 to limit the ink tank 201 to prevent the ink tank 201 from shaking during the printing process. After printing is completed, the external control motor drives the rotating frame 2 to rotate. When the rotating frame 2 rotates, the ink tank 201 moves accordingly. During the movement of the ink tank 201, the limit component limits the ink tank 201 through the sliding limit block 204, so that the ink tank 201 remains in an upward state. During the rotation of the rotating frame 2, the ink tank 201 remains in a horizontal state and moves along an arc The ink tank 201 is moved so that the ink tank 201 will not collide with the printing roller 104 during the movement. During the movement of the ink tank 201, the first torsion spring 202 is gradually deformed by the force. When the control motor drives the rotating frame 2 to rotate 90 degrees, the control motor is turned off. At this time, the cleaning mechanism is started, and the cleaning mechanism pushes the sliding limit block 204 into the slide groove at the end of the rotating shaft of the ink tank 201, so that the ink tank 201 is no longer restricted by the limit assembly. Under the action of the first torsion spring 202, the ink tank 201 rotates 90 degrees on the rotating frame 2. At this time, the ink tank 201 becomes vertical, which is convenient for the subsequent cleaning mechanism to clean the residual ink inside the ink tank 201.

[0034] like Figure 5 and Figure 7 As shown, the limit assembly includes a fixed frame 3, a sliding limit frame 301, a reset spring 302, a sliding limit frame 303 and a supporting spring 304. The bottom end of the support column 105 is fixedly connected to the fixed frame 3. The sliding limit frame 301 is slidably connected to the fixed frame 3. The sliding limit frame 301 and the fixed frame 3 are connected through the reset spring 302. One end of the reset spring 302 is fixed to the sliding limit frame 301, and the other end is fixed to the fixed frame 3. The sliding limit frame 303 is slidably connected in the sliding limit frame 301. The sliding limit frame 303 and the sliding limit frame 301 are connected through the supporting spring 304. One end of the supporting spring 304 is fixedly connected to the sliding limit frame 301, and the other end is fixedly connected to the sliding limit frame 303. The sliding limit frame 303 is stuck outside the sliding limit block 204 to prevent the ink tank 201 from shaking during printing.

[0035] During the printing process, the sliding limit frame 303 is stuck outside the sliding limit block 204. The sliding limit frame 303 limits the ink tank 201 through the sliding limit block 204 and the fixed rod 206 to prevent it from shaking during the printing process. When the rotating frame 2 rotates and drives the ink tank 201 to move, the sliding limit block 204 moves in an arc around the center point of the rotating frame 2. At this time, the sliding limit block 204 is displaced in both the horizontal and vertical directions. When the sliding limit block 204 is displaced in the horizontal direction, it will pass through the sliding limit frame 303 The sliding limit frame 301 is pushed to slide along the fixed frame 3 and compress the reset spring 302. The sliding limit block 204 is displaced in the vertical direction, which will push the sliding limit frame 303 to slide downward along the sliding limit frame 301 and compress the supporting spring 304. When the cleaning mechanism pushes the sliding limit block 204 to slide into the sliding groove at the end of the ink tank 201 shaft along the fixed rod 206, the sliding limit block 204 is disengaged from the sliding limit frame 303. At this time, under the elastic force of the first torsion spring 202, the ink tank 201 rotates 90 degrees around the rotating frame.

[0036] like Fig. 9 and Fig.10 As shown, the cleaning mechanism includes a control cylinder 4, a sliding frame 401, a cleaning guide rail 4011, a fixed guide rail 402, a sliding cleaning frame 403, a cleaning spring 404, a connecting frame 405, a cleaning knife 406 and an unlocking component. The control cylinder 4 is installed on the fixed frame 3, and the sliding frame 401 is slidably connected to the fixed frame 3. The telescopic rod of the control cylinder 4 is connected to the sliding frame 401. The control cylinder 4 drives the sliding frame 401 to slide reciprocatingly along the fixed frame 3. The cleaning guide rail 4011 is fixedly connected to the sliding frame 401 The fixed guide rail 402 and the cleaning guide rail 4011 are tilted, and a sliding cleaning frame 403 is slidably connected inside the fixed guide rail 402. The sliding cleaning frame 403 is connected to the sliding frame 401 through a cleaning spring 404. One end of the cleaning spring 404 is fixed on the sliding cleaning frame 403, and the other end is fixed on the sliding frame 401. A connecting frame 405 is fixed to the sliding cleaning frame 403, and a cleaning knife 406 is installed on the connecting frame 405. The cleaning knife 406 scrapes off the ink remaining at the bottom of the ink tank 201.

[0037] like Fig. 9 and Fig.10 As shown, the unlocking assembly includes a moving push rod 407, a sliding block frame 5, a return spring 501, a wedge block 503 and an unlocking block 504. The moving push rod 407 is fixed to the sliding frame 401, and the sliding block frame 5 is slidably connected to the support column 105 through a guide rod. The sliding block frame 5 and the guide rod are connected through a return spring 501. The wedge block 503 is fixed to the sliding block frame 5. The moving push rod 407 cooperates with the wedge block 503. The sliding frame 401 pushes the wedge block 503 and the sliding block frame 5 to move through the moving push rod 407. The sliding block frame 5 is slidably connected to the unlocking block 504, and the unlocking block 504 is equal in size to the sliding limit block 204.

[0038] After the rotating frame 2 rotates and drives the ink tank 201 to rotate 90 degrees and move away from the bottom of the printing roller 104, the control cylinder 4 is started, and the control cylinder 4 pushes the sliding frame 401 to move in the direction close to the ink tank 201. The moving push rod 407 on the sliding frame 401 will push the sliding block 5 to move in the direction close to the ink tank 201 through the wedge block 503. At this time, the unlocking block 504 on the sliding block 5 is aligned with the sliding limit block 204. The sliding block 5 will compress the return spring 501 during the movement of the sliding block 5 toward the ink tank 201. After the unlocking block 504 contacts the sliding limit block 204, as the sliding block 5 continues to move, the unlocking block 504 pushes the sliding limit block 204 to slide along the fixed rod 206 into the slide groove at the end of the rotating shaft of the ink tank 201. The limit spring 205 between the slots 201 is also compressed. When the sliding limit block 204 is out of contact with the sliding limit frame 303, the first torsion spring 202 will drive the ink slot 201 to rotate 90 degrees around the rotating frame 2 and become a vertical state. At this time, the opening of the ink slot 201 faces the sliding frame 401. At this time, the unlocking block 504 is inserted into the sliding limit frame 303 and restricts its reset. Then the sliding frame 401 and the device thereon continue to move toward the ink slot 201. When the cleaning knife 406 contacts the bottom surface of the ink slot 201, as the sliding frame 401 continues to move, the sliding cleaning frame 403, the connecting frame 405 and the cleaning knife 406 are blocked by the ink slot 201 and cannot continue to move in the horizontal direction. At this time, the sliding cleaning frame 403 and the sliding frame 401 produce relative movement and compress the cleaning knife 406. Spring 404 shortens the distance between connecting frame 405 and fixed guide rail 402, so sliding cleaning frame 403 will move downward along fixed guide rail 402 driven by connecting frame 405, connecting frame 405 moves downward along cleaning guide rail 4011, cleaning knife 406 descends accordingly and scrapes off the ink remaining on the bottom surface of ink tank 201, when connecting frame 405 moves downward along cleaning guide rail 4011 to the lowest point, cleaning knife 406 just scrapes off all the ink remaining on the bottom surface of ink tank 201, and the ink in ink tank 201 will flow downward along the ink discharge port of its front side (at the lowest point at this time), after cleaning, control cylinder 4 pulls sliding frame 401 to slide and reset along fixed frame 3, at this time, under the action of cleaning spring 404, sliding cleaning frame 4 03 and the sliding frame 401 move relative to each other again, the distance between the connecting frame 405 and the fixed guide rail 402 becomes longer, the connecting frame 405 will slide upward along the cleaning guide rail 4011, and at the same time drive the sliding cleaning frame 403 to slide upward and reset along the fixed guide rail 402. When the cleaning spring 404 returns to its original state, the sliding frame 401 continues to slide, which will drive the sliding cleaning frame 403 and the upper device to move together in the direction away from the ink tank 201. When the moving push rod 407 is out of contact with the wedge block 503, the sliding stop frame 5 slides and resets along the support column 105 in the direction away from the ink tank 201 under the push of the return spring 501, and the unlocking block 504 slides out of the sliding limit frame 303. At this time, under the push of the support spring 304 and the reset spring 302,The sliding limit frame 301 and the sliding limit frame 303 move to reset. When the sliding frame 401 is completely reset, the control cylinder 4 is closed, and then the rotating frame 2 is driven to rotate again by the control motor to send the new ink tank 201 to the bottom of the printing roller 104 for printing.

[0039] like Fig. 9 and Fig.10 As shown, it also includes a baffle rod 502 and a buffer spring 505. The baffle rod 502 is fixedly connected to the sliding baffle frame 5. During the process of cleaning the ink tank 201, the baffle rod 502 presses the ink tank 201 from the side to prevent the ink tank 201 from shaking. The unlocking block 504 and the sliding baffle frame 5 are connected through the buffer spring 505. One end of the buffer spring 505 is fixed to the unlocking block 504, and the other end is fixed to the sliding baffle frame 5.

[0040] When the sliding frame 401 moves toward the ink groove 201, it will drive the sliding frame 5 to move toward the ink groove 201 through the wedge block 503. After the unlocking block 504 pushes the sliding limit block 204 to slide into the sliding groove at the end of the rotating shaft of the ink groove 201, the sliding frame 5 continues to move toward the ink groove 201, and the buffer spring 505 between the sliding frame 5 and the unlocking block 504 is compressed. After the ink groove 201 rotates 90 degrees driven by the first torsion spring 202, the blocking rod 502 on the sliding frame 5 just moves and rests on the back side of the ink groove 201, so as to provide support for the ink groove 201 during the process of the cleaning knife 406 moving to scrape off the ink, prevent the ink groove 201 from rotating, and ensure the cleaning effect.

[0041] Embodiment 3: Based on embodiment 2, Figure 4 , Figure 6 and Fig.11 As shown, it also includes a lifting limit frame 1051, a connecting spring 1052, a transmission gear 203, a rotation adjustment block 601 and a second torsion spring 602. The lifting limit frame 1051 is slidably connected to the support column 105. The lifting limit frame 1051 and the support column 105 are connected through the connecting spring 1052. One end of the connecting spring 1052 is fixed to the lifting limit frame 1051, and the other end is fixed to the support column 105. The transmission gear 203 is fixed to the rotating shaft of the ink tank 201. The support column 105 is rotatably connected with the rotation adjustment block 601, the rotation adjustment block 601 is sleeved outside the axis of the rotating frame 2, and the rotation adjustment block 601 is provided with teeth. The rotation adjustment block 601 and the support column 105 are connected through the second torsion spring 602. One end of the second torsion spring 602 is fixed to the rotation adjustment block 601, and the other end is fixed to the support column 105.

[0042] Each rotating frame 2 is provided with two ink tanks 201. When the rotating frame 2 rotates, the used ink tank 201 is moved away from the bottom of the printing roller 104, and the unused ink tank 201 rotates with the rotating frame 2. When the rotating frame 2 drives the used ink tank 201 to move away from the bottom of the printing roller 104, the status of the two ink tanks 201 is as follows: Figure 8 As shown, at this time, the transmission gears 203 on the two ink tanks 201 are respectively meshed with the teeth at both ends of the rotation adjustment block 601. When the unused ink tank 201 rotates with the rotating frame 2, the sliding limit block 204 on the unused ink tank 201 contacts the lifting limit frame 1051. The lifting limit frame 1051 is inclined on the side facing the ink tank 201. During the rotation of the sliding limit block 204, it is pushed into the slide groove at the end of the rotating shaft of the ink tank 201 by the lifting limit frame 1051. When the rotating frame 2 finishes rotating, the sliding limit block 204 is still pressed in the ink tank 201 by the lifting limit frame 1051, and the first torsion spring 202 drives the used ink tank 201 to rotate. During the process of the ink tank 201 rotating 90 degrees, the transmission gear 203 on the used ink tank 201 drives the rotating adjustment block 601 to rotate. When the rotating adjustment block 601 rotates, it drives the transmission gear 203 on the unused ink tank 201 to rotate, and then drives the unused ink tank 201 to rotate 90 degrees around the rotating frame 2. The sliding limit block 204 on the unused ink tank 201 rotates 90 degrees accordingly. At this time, the sliding limit block 204 on the unused ink tank 201 is just aligned with the card window of the lifting limit frame 1051. At this time, under the push of the limit spring 205, the sliding limit block 204 will slide into the lifting limit frame 1051 along the fixed rod 206. 51, at this time, the unused first torsion spring 202 is deformed by force, and the unused ink tank 201 is restricted by the lifting limit frame 1051 and cannot be restored. When the residual ink in the used ink tank 201 is scraped off, the control motor drives the ink tank 201 to rotate through the rotating frame 2, and the unused ink tank 201 is driven by the rotating frame 2 and moves along the arc. During this process, the lifting limit frame 1051 is pushed up by the sliding limit block 204, and the connecting spring 1052 is compressed. The sliding limit block 204 slides toward the exit of the lifting limit frame 1051 during the movement of the ink tank 201. The sliding limit block 204 moves toward the lifting limit frame 1051. During the sliding process at the exit, it will slide into the sliding limit frame 303. When the sliding limit block 204 is out of contact with the lifting limit frame 1051, the sliding limit block 204 has been restricted by the sliding limit frame 303. Then, under the push of the elastic force of the connecting spring 1052, the lifting limit frame 1051 slides downward along the support column 105 to reset. When the unused ink groove 201 moves to the bottom of the printing roller 104, the first torsion spring 202 between the unused ink groove 201 and the rotating frame 2 returns to its original state, thereby delivering the unused ink groove 201 to the bottom of the printing roller 104 and avoiding the contact between the ink groove 201 and the printing roller 104.

[0043] like Fig.11 As shown, it also includes a limit plate 6, and the limit plate 6 is fixedly connected to the support column 105, and the limit plate 6 is used to block the rotation adjustment block 601; in the process of the first torsion spring 202 driving the used ink tank 201 to rotate on the rotating frame 2, the rotation adjustment block 601 is driven by the transmission gear 203 to rotate and deform the second torsion spring 602. In the process of controlling the motor to drive the cleaned ink tank 201 to rotate 90 degrees again through the rotating frame 2, the second torsion spring 602 drives the rotation adjustment block 601 to gradually rotate and reset. Under the obstruction of the limit plate 6, the rotation adjustment block 601 is no longer engaged with the output transmission gear 203, so as to prevent the transmission gear 203 from being affected by the rotation adjustment block 601 and driving the ink tank 201 to rotate again when the ink tank 201 rotates with the rotating frame 2 again.

[0044] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A multifunctional compound machine for multi-color printing and painting, characterized in that: The invention comprises a multi-color printing machine (1), an ink storage box (101), an ink adding port (1011), a conduit (1012), an ink adding port (1013), a guide shaft (102), a pressure roller (103), a printing roller (104), a support column (105), an ink scraper frame (106), a rotating frame (2), an ink tank (201), a rotating mechanism and a cleaning mechanism. The multi-color printing machine (1) is provided with a support column (105), an ink storage box (101) is installed on the support column (105), a top of the ink storage box (101) is provided with an adding port (1011), a bottom of the ink storage box (101) is fixedly connected to the conduit (1012), the other end of the conduit (1012) is fixedly connected to the ink adding port (1013), the ink adding port (1013) is located at the top of the ink tank (201), and the support column (105) is provided with a plurality of ink cartridges. The support column (105) is rotatably connected to a guide shaft (102), a pressure roller (103) and a printing roller (104). The substrate passes between the pressure roller (103) and the printing roller (104) and is then sent out through the guide shaft (102). A scraper frame (106) is fixedly connected to the support column (105). The scraper is mounted on the scraper frame (106). A rotating frame (2) is rotatably connected to the support column (105). A control motor is mounted on the support column (105). The output shaft of the control motor is fixedly connected to the rotating frame (2). An ink tank (201) is mounted on the rotating frame (2). The ink tank (201) is used to hold ink for printing. The rotating mechanism is used to move the ink tank (201) away from the bottom of the printing roller (104). The cleaning mechanism is used to scrape off the ink remaining on the bottom surface of the ink tank (201).

2. A multi-functional compound machine for multi-color printing and painting as claimed in claim 1, characterized in that: The rotating mechanism comprises a first torsion spring (202), a sliding limit block (204), a limit spring (205), a fixed rod (206) and a limit assembly. The ink tank (201) and the rotating frame (2) are connected via the first torsion spring (202). Two ends of the first torsion spring (202) are respectively fixed on the ink tank (201) and the rotating frame (2). A sliding groove is provided at the end of the rotating shaft of the ink tank (201). A fixed rod (206) is fixed in the sliding groove at the end of the rotating shaft of the ink tank (201). The fixed rod (206) is slidably connected with the sliding limit block (204). The sliding limit block (204) and the rotating shaft of the ink tank (201) are connected via the limit spring (205). The limit assembly is installed on the support column (105). The limit assembly limits the state of the ink tank (201) via the sliding limit block (204).

3. A multifunctional compound machine for multi-color printing and painting as claimed in claim 2, characterized in that: The limiting assembly comprises a fixed frame (3), a sliding limiting frame (301), a reset spring (302), a sliding limiting frame (303) and a support spring (304); the bottom end of the support column (105) is fixedly connected to the fixed frame (3); the sliding limiting frame (301) is slidably connected to the fixed frame (3); the sliding limiting frame (301) and the fixed frame (3) are connected via the reset spring (302); the sliding limiting frame (303) is slidably connected inside the sliding limiting frame (301); the sliding limiting frame (303) and the sliding limiting frame (301) are connected via the support spring (304).

4. A multifunctional compound machine for multi-color printing and painting as claimed in claim 3, characterized in that: The cleaning mechanism comprises a control cylinder (4), a sliding frame (401), a cleaning guide rail (4011), a fixed guide rail (402), a sliding cleaning frame (403), a cleaning spring (404), a connecting frame (405), a cleaning knife (406) and an unlocking component. The control cylinder (4) is mounted on the fixed frame (3), the sliding frame (401) is slidably connected to the fixed frame (3), the telescopic rod of the control cylinder (4) is connected to the sliding frame (401), and the sliding frame (401) is ) is fixedly connected to a cleaning guide rail (4011) and a fixed guide rail (402); a sliding cleaning frame (403) is slidably connected inside the fixed guide rail (402); the sliding cleaning frame (403) and the sliding frame (401) are connected via a cleaning spring (404); a connecting frame (405) is fixedly connected to the sliding cleaning frame (403); an end of the connecting frame (405) is slidably arranged in the cleaning guide rail (4011); and a cleaning knife (406) is installed on the connecting frame (405).

5. A multifunctional compound machine for multi-color printing and painting as claimed in claim 4, characterized in that: The unlocking assembly comprises a moving push rod (407), a sliding block (5), a return spring (501), a wedge block (503) and an unlocking block (504); the moving push rod (407) is fixedly connected to the sliding block (401); the sliding block (5) is slidably connected to the support column (105) via a guide rod; the sliding block (5) and the guide rod are connected via a return spring (501); the wedge block (503) is fixedly connected to the sliding block (5); and the unlocking block (504) is slidably connected to the sliding block (5).

6. A multi-functional compound machine for multi-color printing and painting as claimed in claim 5, characterized in that: It also comprises a blocking rod (502) and a buffer spring (505); the blocking rod (502) is fixedly connected to the sliding blocking frame (5); and the unlocking block (504) and the sliding blocking frame (5) are connected via the buffer spring (505).

7. A multi-functional compound machine for multi-color printing and painting as claimed in claim 2, characterized in that: The ink tank (201) further comprises a lifting limit frame (1051), a connecting spring (1052), a transmission gear (203), a rotation adjustment block (601) and a second torsion spring (602); the lifting limit frame (1051) is slidably connected to the support column (105); the lifting limit frame (1051) and the support column (105) are connected via the connecting spring (1052); the transmission gear (203) is fixedly connected to the rotating shaft of the ink tank (201); the rotation adjustment block (601) is rotatably connected to the support column (105); the rotation adjustment block (601) is provided with teeth; and the rotation adjustment block (601) and the support column (105) are connected via the second torsion spring (602).

8. A multi-functional compound machine for multi-color printing and painting as claimed in claim 7, characterized in that: It also includes a limit plate (6), the limit plate (6) being fixedly connected to the support column (105), and the limit plate (6) being used to block the rotation of the adjustment block (601).

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