A three-in-one printing machine

By designing an automatic cleaning system on the three-in-one printing press, dust is removed using a curtain frame and air blowing/jet spraying mechanisms, solving the equipment contamination problem, achieving efficient cleaning and stable operation of the equipment, and improving print quality and equipment lifespan.

CN122481353APending Publication Date: 2026-07-31GUANGZHOU SANRONG PACKING MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGZHOU SANRONG PACKING MATERIALS CO LTD
Filing Date
2025-04-08
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

The existing three-in-one printing press lacks an automatic protection mechanism, which makes the surface and inside of the equipment easily contaminated by dust, affecting the printing effect and the life of the equipment.

Method used

An automated cleaning system comprising a top mount, a curtain frame, an air blower, and an air jet pipe was designed. The curtain frame is lowered to cover the equipment, and the air blower and air jet pipe are used to clean dust, ensuring the cleanliness and sealing of the equipment.

Benefits of technology

It effectively prevents dust accumulation, keeps the equipment clean, improves print quality, extends equipment life, reduces maintenance costs, and enhances equipment stability and safety.

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Abstract

This invention relates to the field of printing press technology, and more particularly to a three-in-one printing press, comprising a mounting base, on which the printing press body is fixedly mounted; a belt is rotatably connected to the inner wall of the mounting base, and an air blower is fixedly connected to the belt; two support tubes are symmetrically fixedly connected to the mounting base, and a top seat is fixedly connected between the two support tubes; a retractable mechanism is rotatably connected to the top seat, and a curtain frame is rotatably connected to the retractable mechanism; the air blower is rotatably connected to the top seat. By setting up the top seat and the curtain frame, when the printing press is not in use, the curtain frame is lowered, the elastic curtain is pulled open, and it covers the outside of the printing press, effectively preventing dust from affecting the printing press. This not only keeps the equipment clean and extends its lifespan, but also improves print quality and overall operating efficiency. For example, in dusty workshop environments, it effectively prevents printing press malfunctions caused by dust accumulation.
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Description

Technical Field

[0001] This invention relates to the field of printing press technology, and more particularly to a three-in-one printing press. Background Technology

[0002] A three-in-one printing press typically refers to a printing device that integrates three functions. This type of equipment can perform different types of printing jobs on the same machine, thereby improving production efficiency and saving space. Below are some possible combinations of functions for a three-in-one printing press:

[0003] Common three-in-one function combinations (such as flat printing, flexographic printing, and screen printing)

[0004] Flat printing: Suitable for high-precision graphic printing, often used in mass production scenarios such as books, newspapers, and advertisements.

[0005] Flexographic printing: Suitable for printing on plastic films, cartons, packaging bags, etc., mainly used in food packaging, daily necessities packaging and other fields.

[0006] Screen printing: Used for high-precision, multi-color, and multi-material printing, such as T-shirts, promotional materials, glass, etc., suitable for small-batch, diversified product printing.

[0007] With the development of printing technology, various types of printing presses have emerged on the market. Existing technology publication CN108851359B provides a printing press. Since the main shaft is composed of a main shaft body and a moving body, a locking mechanism reliably connects the main shaft body and the moving body, and limits the rotation axis of the printing wheel between the main shaft body and the moving body, thereby connecting the printing wheel to the main shaft. This reduces the step of disassembling and assembling the bearing each time the printing wheel is replaced, not only reducing operational difficulty but also improving replacement efficiency. Furthermore, because the color leveling device includes a sponge that contacts the printing wheel, and a flow regulating valve controls the flow rate of ink penetrating the sponge, the depth of dye adhering to the color leveling roller can be controlled, thereby adjusting the depth of dye on the printing wheel.

[0008] When not in use, existing technology lacks protective mechanisms, making the surface and interior of the equipment susceptible to the accumulation of fine dust particles from the air. This dust can clog the print head or ink cartridges, resulting in poor print quality, such as streaks, blurriness, or color differences.

[0009] In summary, the existing technology lacks a technology for automatic protection of printing presses. Summary of the Invention

[0010] The purpose of this invention is to address the shortcomings of the prior art by proposing a three-in-one printing machine.

[0011] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a three-in-one printing machine, including a mounting base, on which the printing machine body is fixedly mounted; a belt is rotatably connected to the inner wall of the mounting base; an air blower is fixedly connected to the belt; two support tubes are symmetrically fixedly connected to the mounting base; a top seat is fixedly connected between the two support tubes; a retracting mechanism is rotatably connected to the top seat; a curtain frame is rotatably connected to the retracting mechanism; and an air blowing mechanism is rotatably connected to the top seat.

[0012] Preferably, the mounting base has an annular groove, and an annular rack is fixedly connected to the inner wall of the annular groove.

[0013] Preferably, the belt internal friction drive is provided with multiple pulleys, which are rotatably connected to the inner wall of the mounting base. A drive rod is fixedly connected to the pulley located on the lower side of the support tube, and the outer wall of the drive rod is provided with a spiral groove.

[0014] Preferably, a rotating shaft is rotatably connected through the inner wall of the bottom end of the air blower, a gear is fixedly connected to the rotating shaft, the gear meshes with a ring rack for transmission, and a protruding disc is fixedly connected to one end of the rotating shaft located inside the air blower.

[0015] Preferably, a T-shaped plug is slidably fitted on the inner wall of the air blower, the outer wall of the bottom end of the T-shaped plug is slidably in contact with the protruding disc, a spring is fixedly connected to the T-shaped plug, the other end of the spring is fixedly connected to the inner wall of the air blower, and an inclined air blowing pipe is connected through the bottom end of the air blower.

[0016] Preferably, a motor is fixedly connected to the top seat, and a drive wheel is fixedly connected to the output end of the motor.

[0017] Preferably, the retracting mechanism includes a worm gear, one end of which is rotatably connected to a top seat, and the other end of which is fixedly connected to a driven wheel. A worm wheel is meshed and driven on one side of the worm gear, and a transmission rod is fixedly connected to the worm wheel. Both ends of the transmission rod are rotatably connected to the top seat, and both ends of the transmission rod are fixedly connected to a connecting rod assembly. The other end of the connecting rod assembly is rotatably connected to a hinge seat, and the hinge seat is fixedly connected to the curtain frame.

[0018] Preferably, an elastic curtain is fixedly connected to the curtain frame, and the other end of the elastic curtain is fixedly connected to the lower surface of the top seat. Two sliding sleeves are fixedly connected to the side of the curtain frame near the support tube. The inner wall of the sliding sleeve is slidably engaged with the outer wall of the support tube. A guide rod is fixedly connected to the inner wall of the sliding sleeve, and the outer wall of the other end of the guide rod is slidably engaged with the inner wall of the spiral groove.

[0019] Preferably, the blowing mechanism includes a jet pipe, one end of which is inclined, and a plurality of nozzles are fixedly connected to the inclined end of the jet pipe. The top end of the jet pipe is rotatably connected to a top seat, and an air pump is rotatably connected to the top end of the jet pipe. The air pump is fixedly connected to the top seat, and a transmission wheel is fixedly connected to the outer wall of the top end of the jet pipe. The transmission wheel meshes with a driving wheel and a driven wheel for transmission.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. By installing a top mount and curtain frame, when the printing press is not in use, the curtain frame can be lowered, the elastic curtain pulled open, and placed over the outside of the printing press, effectively preventing dust from affecting it. This not only keeps the equipment clean and extends its lifespan but also improves print quality, simplifies maintenance, enhances exterior protection, and increases overall equipment operating efficiency. For example, in dusty workshop environments, it effectively prevents printing press malfunctions caused by dust accumulation, ensuring the equipment is always in good working order.

[0022] 2. By incorporating an air blower, when the curtain frame moves downward, it drives the belt to rotate, causing the air blower to move in a circular motion and continuously blow air. This effectively cleans the contact area between the printing press mounting base and the curtain frame, ensuring a tight seal. This not only keeps the equipment clean, enhances sealing, and reduces malfunctions, but also extends equipment life, improves work efficiency, and reduces maintenance costs.

[0023] 3. By incorporating an air-blowing mechanism, the air jet pipes rotate simultaneously with the lowering of the curtain frame via the retraction mechanism, automatically cleaning dust adhering to the printing press. This design offers significant advantages, including automated cleaning, improved equipment cleanliness, reduced malfunctions, extended equipment lifespan, increased production efficiency and print quality, lower cleaning costs, a clean equipment appearance, and enhanced safety. It not only improves equipment reliability and stability but also reduces manual intervention, making the production process more efficient, energy-saving, and environmentally friendly. Attached Figure Description

[0024] Figure 1 This is a partial structural schematic diagram of a three-in-one printing machine according to the present invention;

[0025] Figure 2 This is a schematic diagram of the overall structure of a three-in-one printing machine according to the present invention;

[0026] Figure 3 This is a partial cross-sectional view of a three-in-one printing machine according to the present invention;

[0027] Figure 4 This is a cross-sectional schematic diagram of the mounting base structure of a three-in-one printing machine according to the present invention;

[0028] Figure 5 This is a schematic diagram of the belt structure of a three-in-one printing machine according to the present invention;

[0029] Figure 6 This is a cross-sectional schematic diagram of the air blowing cylinder structure of a three-in-one printing machine according to the present invention;

[0030] Figure 7 This is a schematic diagram of the curtain frame structure of a three-in-one printing machine according to the present invention;

[0031] Figure 8 This is a schematic diagram of the take-up and take-down mechanism of a three-in-one printing machine according to the present invention;

[0032] Figure 9 This is a schematic diagram of the air blowing mechanism of a three-in-one printing machine according to the present invention.

[0033] The diagram shows: 1. Mounting base; 2. Printing machine body; 3. Belt; 4. Air blower; 5. Support tube; 6. Top seat; 7. Retraction mechanism; 8. Curtain frame; 9. Air blowing mechanism; 101. Annular groove; 102. Annular rack; 301. Pulley; 302. Drive rod; 303. Spiral groove; 401. Shaft; 402. Gear; 403. Raised disc; 404. T-plug; 405. Spring; 406. Inclined air blowing pipe; 601. Motor; 602. Drive wheel; 701. Worm; 702. Driven wheel; 703. Worm gear; 704. Transmission rod; 705. Linkage assembly; 706. Hinge; 801. Elastic curtain; 802. Sliding sleeve; 803. Guide rod; 901. Air jet pipe; 902. Nozzle; 903. Air pump; 904. Transmission wheel. Detailed Implementation

[0034] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0035] like Figures 1-9 The three-in-one printing machine shown includes a mounting base 1, on which the printing machine body 2 is fixedly mounted. A belt 3 is rotatably connected to the inner wall of the mounting base 1, and an air blower 4 is fixedly connected to the belt 3. Two support pipes 5 are symmetrically fixedly connected to the mounting base 1, and a top seat 6 is fixedly connected between the two support pipes 5. A take-up and release mechanism 7 is rotatably connected to the top seat 6, and a curtain frame 8 is rotatably connected to the take-up and release mechanism 7. An air blowing mechanism 9 is rotatably connected to the top seat 6.

[0036] like Figure 4 As shown, an annular groove 101 is provided on the mounting base 1, and an annular rack 102 is fixedly connected to the inner wall of the annular groove 101.

[0037] like Figure 5 As shown, the belt 3 has multiple pulleys 301 arranged for friction transmission. The pulleys 301 are rotatably connected to the inner wall of the mounting base 1. A drive rod 302 is fixedly connected to the pulley 301 located on the lower side of the support tube 5. The outer wall of the drive rod 302 has a spiral groove 303. The guide rod 803 in the sliding sleeve 802 slides in the spiral groove 303, thereby driving the drive rod 302 to rotate. This causes the drive rod 302 to drive the connected pulley 301 to rotate, which in turn drives the belt 3 to rotate. At this time, the belt 3 drives the air blower 4 to slide in the annular groove 101.

[0038] like Figure 6 As shown, a rotating shaft 401 is rotatably connected through the inner wall of the bottom end of the air blower 4. A gear 402 is fixedly connected to the rotating shaft 401. The gear 402 meshes with the ring rack 102 for transmission. A protruding disc 403 is fixedly connected to one end of the rotating shaft 401 located inside the air blower 4.

[0039] A T-shaped plug 404 is slidably fitted onto the inner wall of the air blower 4. The outer wall of the bottom end of the T-shaped plug 404 is in slidable contact with the raised disc 403. A spring 405 is fixedly connected to the T-shaped plug 404, and the other end of the spring 405 is fixedly connected to the inner wall of the air blower 4. An inclined air blowing pipe 406 is connected through the bottom end of the air blower 4. Under the action of the ring rack 102, the gear 402 rotates, which in turn drives the connected rotating shaft 401 to rotate. This causes the rotating shaft 401 to drive the connected raised disc 403 to rotate, and the raised disc 403 then pushes up the T-shaped plug 404, drawing air into the air blower 4. Then, under the action of the spring 405, the T-shaped plug 404 moves downward, forcing the air out through the inclined air blowing pipe 406. One-way valves are installed at the input end of the air blower 4 and inside the inclined air blowing pipe 406. The inclined air blowing pipe 406 facilitates the blowing away of particles on the mounting base 1.

[0040] By incorporating an air blower 4, when the curtain frame 8 moves downward, it drives the belt 3 to rotate. The belt 3 then drives the air blower 4 in a circular motion, continuously blowing out air. This effectively cleans the contact area between the mounting base 1 of the printing press body 2 and the curtain frame 8, ensuring a tight seal. This not only keeps the equipment clean, enhances sealing, and reduces malfunctions, but also extends equipment life, improves work efficiency, and reduces maintenance costs.

[0041] like Figure 9 As shown, a motor 601 is fixedly connected to the top seat 6, and a drive wheel 602 is fixedly connected to the output end of the motor 601. The motor 601 drives the connected drive wheel 602 to rotate, and at this time the drive wheel 602 will drive the jet pipe 901 connected to the transmission wheel 904 to rotate.

[0042] like Figure 8As shown, the retracting mechanism 7 includes a worm gear 701. One end of the worm gear 701 is rotatably connected to the top seat 6, and the other end of the worm gear 701 is fixedly connected to a driven wheel 702. A worm wheel 703 is meshed and driven on one side of the worm gear 701. A transmission rod 704 is fixedly connected to the worm wheel 703. Both ends of the transmission rod 704 are rotatably connected to the top seat 6. Both ends of the transmission rod 704 are fixedly connected to a connecting rod assembly 705. The other end of the connecting rod assembly 705 is rotatably connected to a hinge seat 706. The hinge seat 706 is fixedly connected to the curtain frame 8.

[0043] like Figure 7 As shown, an elastic curtain 801 is fixedly connected to the curtain frame 8. The other end of the elastic curtain 801 is fixedly connected to the lower surface of the top seat 6. Two sliding sleeves 802 are fixedly connected to the side of the curtain frame 8 near the support tube 5. The inner wall of the sliding sleeve 802 is slidably fitted with the outer wall of the support tube 5. A guide rod 803 is fixedly connected to the inner wall of the sliding sleeve 802. The outer wall of the other end of the guide rod 803 is slidably fitted with the inner wall of the spiral groove 303. The driven wheel 702 drives the connected worm gear 701 to rotate, causing the worm gear 701 to drive the worm wheel 703 to rotate slowly and uniformly. This, in turn, drives the connected transmission rod 704 to rotate, causing the transmission rod 704 to drive the connected connecting rod assembly 705 to rotate. The connecting rod assembly 705 then moves the curtain frame 8 downwards, stretching the elastic curtain 801 to cover the printing press body 2. The elastic curtain 801 is made of rubber and has excellent elasticity and wear resistance. When elastic curtains are made of rubber, it ensures that they can quickly return to their original shape after being stretched and can withstand greater tension and external forces.

[0044] By installing the top mount 6 and the curtain frame 8, when the printing press body 2 is not in use, the curtain frame 8 is lowered, the elastic curtain 801 is pulled open and covers the outside of the printing press body 2, effectively preventing dust from affecting the printing press body 2. This not only keeps the equipment clean and extends its lifespan, but also improves print quality, simplifies maintenance, enhances exterior protection, and improves the overall operating efficiency of the equipment. For example, in dusty workshop environments, it effectively prevents malfunctions of the printing press body 2 due to dust accumulation, ensuring the equipment is always in good working order.

[0045] like Figure 8As shown, the air blowing mechanism 9 includes an air jet pipe 901, one end of which is inclined. Multiple nozzles 902 are fixedly connected to the inclined end of the air jet pipe 901. The top end of the air jet pipe 901 is rotatably connected to the top seat 6. An air pump 903 is rotatably connected to the top end of the air jet pipe 901, and the air pump 903 is fixedly connected to the top seat 6. A transmission wheel 904 is fixedly connected to the outer wall of the top end of the air jet pipe 901. The transmission wheel 904 meshes with the driving wheel 602 and the driven wheel 702 for transmission. The air pump 903 injects high-pressure gas into the air jet pipe 901, which is then ejected through the nozzles 902, thereby cleaning the surface of the printing press body 2. When the transmission wheel 904 rotates, it drives the meshing driven wheel 702 to rotate.

[0046] By incorporating an air-blowing mechanism 9, which, while driving the curtain frame 8 downwards via the retraction mechanism 7, simultaneously rotates the air jet pipe 901, automatically cleaning dust adhering to the printing press body 2. This design offers significant advantages, including automated cleaning, improved equipment cleanliness, reduced malfunctions, extended equipment lifespan, increased production efficiency and print quality, lower cleaning costs, a clean equipment appearance, and enhanced safety. It not only improves equipment reliability and stability but also reduces manual intervention, making the production process more efficient, energy-saving, and environmentally friendly.

[0047] Working principle: When the printing press body 2 is not in use, the motor 601 drives the connected drive wheel 602 to rotate. At this time, the drive wheel 602 drives the air jet pipe 901 connected to the transmission wheel 904 to rotate. At this time, the air pump 903 injects high-pressure gas into the air jet pipe 901, and then sprays it out through the nozzle 902, thereby cleaning the surface of the printing press body 2.

[0048] At the same time, when the transmission wheel 904 rotates, it will drive the meshing driven wheel 702 to rotate, which will drive the connected worm 701 to rotate, which will drive the worm wheel 703 to rotate slowly and uniformly, which will drive the connected transmission rod 704 to rotate, which will drive the connected connecting rod group 705 to rotate, which will drive the curtain frame 8 to move down, stretching the elastic curtain 801 to cover the printing machine body 2;

[0049] At the same time, when the curtain frame 8 moves down, it will drive the connected sliding sleeve 802 to slide on the support tube 5. At this time, the guide rod 803 in the sliding sleeve 802 will slide in the spiral groove 303, which will drive the drive rod 302 to rotate, so that the drive rod 302 drives the connected pulley 301 to rotate, so that the pulley 301 can drive the belt 3 to rotate. At this time, the belt 3 will drive the air blower 4 to slide in the annular groove 101.

[0050] At this time, under the action of the ring rack 102, the gear 402 will rotate. The gear 402 will drive the connected rotating shaft 401 to rotate, which will drive the connected protruding disk 403 to rotate. Then the protruding disk 403 will push up the T-shaped plug 404, drawing air into the air blower 4. Then, under the action of the spring 405, the T-shaped plug 404 will move down, pushing the air out through the inclined air blower 406 to clean the contact area between the mounting base 1 and the curtain frame 8, ensuring sealing.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0052] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A three-in-one printing press comprising a mounting base (1), characterized in that: The mounting base (1) is fixedly mounted with a printing machine body (2). A belt (3) is rotatably connected to the inner wall of the mounting base (1). An air blower (4) is fixedly connected to the belt (3). Two support tubes (5) are fixedly connected to the mounting base (1) in a symmetrical structure. A top seat (6) is fixedly connected between the two support tubes (5). A retractable mechanism (7) is rotatably connected to the top seat (6). A curtain frame (8) is rotatably connected to the retractable mechanism (7). An air blowing mechanism (9) is rotatably connected to the top seat (6).

2. A three-in-one printer according to claim 1, characterized in that: The mounting base (1) has an annular groove (101) and an annular rack (102) is fixedly connected to the inner wall of the annular groove (101).

3. A three-in-one printer according to claim 2, wherein: The belt (3) is equipped with multiple pulleys (301) for internal friction transmission. The pulleys (301) are rotatably connected to the inner wall of the mounting base (1). A drive rod (302) is fixedly connected to the pulley (301) located on the lower side of the support tube (5). The outer wall of the drive rod (302) is provided with a spiral groove (303).

4. A three-in-one printer according to claim 3, wherein: A rotating shaft (401) is rotatably connected through the inner wall of the bottom end of the air blower (4). A gear (402) is fixedly connected on the rotating shaft (401). The gear (402) meshes with the ring rack (102) for transmission. A protruding disc (403) is fixedly connected to one end of the rotating shaft (401) inside the air blower (4).

5. A three-in-one printer according to claim 4, wherein: The inner wall of the air blower (4) is provided with a T-shaped plug (404) that slides in fit. The outer wall of the bottom end of the T-shaped plug (404) is in sliding contact with the protruding disc (403). A spring (405) is fixedly connected to the T-shaped plug (404). The other end of the spring (405) is fixedly connected to the inner wall of the air blower (4). An inclined air blowing pipe (406) is provided through the bottom end of the air blower (4).

6. A three-in-one printer according to claim 5, wherein: A motor (601) is fixedly connected to the top seat (6), and a drive wheel (602) is fixedly connected to the output end of the motor (601).

7. A three-in-one printer according to claim 6, wherein: The retracting mechanism (7) includes a worm gear (701), one end of which is rotatably connected to the top seat (6), and the other end of which is fixedly connected to a driven wheel (702). A worm wheel (703) is meshed and driven on one side of the worm gear (701), and a transmission rod (704) is fixedly connected to the worm wheel (703). Both ends of the transmission rod (704) are rotatably connected to the top seat (6), and both ends of the transmission rod (704) are fixedly connected to a connecting rod assembly (705). The other end of the connecting rod assembly (705) is rotatably connected to a hinge seat (706), and the hinge seat (706) is fixedly connected to the curtain frame (8).

8. A three-in-one printer according to claim 7, wherein: An elastic curtain (801) is fixedly connected to the curtain frame (8). The other end of the elastic curtain (801) is fixedly connected to the lower surface of the top seat (6). Two sliding sleeves (802) are fixedly connected to the side of the curtain frame (8) near the support tube (5). The inner wall of the sliding sleeve (802) is slidably engaged with the outer wall of the support tube (5). A guide rod (803) is fixedly connected to the inner wall of the sliding sleeve (802). The outer wall of the other end of the guide rod (803) is slidably engaged with the inner wall of the spiral groove (303).

9. A three-in-one printer according to claim 8, wherein: The blowing mechanism (9) includes a jet pipe (901), one end of which is inclined. Multiple nozzles (902) are fixedly connected to the inclined end of the jet pipe (901). The top end of the jet pipe (901) is rotatably connected to the top seat (6). An air pump (903) is rotatably connected to the top end of the jet pipe (901). The air pump (903) is fixedly connected to the top seat (6). A transmission wheel (904) is fixedly connected to the outer wall of the top end of the jet pipe (901). The transmission wheel (904) is meshed with the driving wheel (602) and the driven wheel (702) for transmission.