Inkjet printed paper reverser

Abstract

The application discloses an ink-jet printing paper reversing device, which comprises an inlet walkway, a transformation walkway and an outlet walkway, one end of the inlet walkway is connected to an upper walkway, the other end of the inlet walkway is communicated with the transformation walkway and the outlet walkway, and the other end of the outlet walkway is communicated to a lower walkway; a switcher is arranged at the three-way communication position of the inlet walkway, the transformation walkway and the outlet walkway, the inlet walkway is communicated with the transformation walkway when the switcher is in a first state, the transformation walkway is communicated with the outlet walkway when the switcher is in a second state, and a direction-changing conveying mechanism is arranged on the transformation walkway. The application has the advantages that the device is designed between the upper walkway and the lower walkway, paper can enter the device after being printed on the front surface in the upper walkway, the paper enters the lower walkway after being reversed, the back surface of the paper is located in the upper walkway after the paper returns to the upper walkway from the lower walkway, and the back surface of the paper is printed, so that double-sided printing is realized; and the application only needs one printing head, and the cost is reduced.

Description

Technical Field

[0001] This invention relates to mechanical mechanisms, and more specifically to inkjet printing paper commutators. Background Technology

[0002] Inkjet printing is a contactless, pressureless, and plateless printing process. Information stored in a computer can be input into an inkjet printer for printing.

[0003] An inkjet printer consists of a system controller, an inkjet controller, printheads, and a substrate drive mechanism. Under the control of the inkjet controller, ink is ejected from the nozzles of the printhead and printed onto the substrate. According to the printing requirements, the drive mechanism transports the substrate, and the system controller is responsible for the overall operation of the machine.

[0004] Existing inkjet printers all have a flipping structure when performing double-sided printing. For example, a platform-type roller flipping single-sheet double-sided inkjet printing system with patent number CN202121452777.3 achieves double-sided printing by designing a ring track structure, where the paper on the upper and lower tracks has different facing sides. However, this structure requires two printing heads, which is too costly. Summary of the Invention

[0005] One object of the present invention is to solve at least the above-mentioned problems and to provide at least the advantages that will be described later.

[0006] The purpose of this invention is to provide an inkjet printing paper reversing device to solve the problem of high cost caused by the use of dual printheads in existing inkjet printers for double-sided printing.

[0007] To achieve these and other advantages according to the present invention, an inkjet printing paper commutator is provided, comprising an inlet channel, a change channel, and an outlet channel, wherein one end of the inlet channel is connected to an upper channel and the other end is connected to both the change channel and the outlet channel, and the other end of the outlet channel is connected to a lower channel.

[0008] A converter is installed at the three-way connection point of the entrance corridor, the transformation corridor, and the exit corridor. When the converter is in the first state, the entrance corridor and the transformation corridor are connected, and the entrance corridor and the exit corridor are blocked by the converter. When the converter is in the second state, the entrance corridor and the transformation corridor are blocked, the entrance corridor and the exit corridor are blocked, and the transformation corridor and the exit corridor are connected. When the converter is in the third state, the entrance corridor and the transformation corridor are blocked, the entrance corridor and the exit corridor are connected, and the transformation corridor and the exit corridor are blocked.

[0009] The changing walkway is equipped with a reversing conveyor mechanism, which includes a reversing main rubber roller and multiple reversing auxiliary rubber rollers. The reversing auxiliary rubber rollers are all driven by the reversing main rubber roller to rotate in the same direction. The reversing main rubber roller is connected to a reversing rotator, which drives the reversing main rubber roller to rotate in the forward or reverse direction.

[0010] In one possible design, the reversing rotary device includes two electromagnetic rotating components respectively disposed at both ends of the reversing main rubber roller, a fixed rotating shaft, and a reversing drive motor;

[0011] The electromagnetic rotating component includes a rotating ring sleeved on the reversing main roller and an adsorption ring fixed on the reversing main rubber roller. A reversing electromagnet is provided on the adsorption ring. When the reversing electromagnet is energized, the rotating ring and the adsorption ring are adsorbed and fixed together. When the reversing electromagnet is de-energized, the rotating ring and the adsorption ring separate.

[0012] An electromagnetic rotating component located at one end of the reversing main rubber roller has its rotating ring connected to a fixed rotating shaft via a belt; an electromagnetic rotating component located at the other end of the reversing main rubber roller has its rotating ring connected to an intermediate rotating shaft via a belt, and the intermediate rotating shaft and the fixed rotating shaft are meshed by gears.

[0013] The reversible drive motor drives the fixed shaft to rotate in a fixed direction.

[0014] In one possible design, the converter includes a conversion shaft and a rotating block fixed on the conversion shaft. The conversion shaft is connected to a push-pull electromagnet via a connector, and the push-pull electromagnet drives the conversion shaft to swing back and forth.

[0015] The connection between the entrance passage and the transition passage is vertical. The connection includes a plate without an opening and a plate with an opening. The plate with an opening is provided with an opening that communicates with the exit passage. The exit passage extends upward at an angle from the opening.

[0016] The rotating block is located at the opening and is trapezoidal in shape. When the rotating block is rotated, the bottom surface of the rotating block is parallel to the opening plate. At this time, the rotating block is located in the exit passage and blocks the exit passage. The converter is in the first state. When the conversion shaft is rotated, the rotating block blocks the entrance passage and the converter is in the second state.

[0017] In one possible design, the connector includes a first connecting rod and a second connecting rod, one end of the first connecting rod being hinged to a conversion shaft and the other end being hinged to one end of the second connecting rod, the other end of the second connecting rod being hinged to a push-pull electromagnet.

[0018] In one possible design, the rotating block includes several trapezoidal blocks and several circular blocks, the conversion shaft is a square shaft, and the trapezoidal blocks and circular blocks are installed alternately on the conversion shaft.

[0019] In one possible design, the open plate is provided with slots that correspond one-to-one with the trapezoidal blocks.

[0020] In one possible design, one side of the entrance walkway is provided with several inlet paper drive rollers, and the other side is provided with auxiliary rollers that correspond one-to-one with the paper drive rollers. The inlet paper drive rollers are driven to rotate in the same direction by an inlet drive motor.

[0021] In one possible design, one side of the outlet walkway is provided with several outlet paper drive rollers, and the other side of the outlet walkway is provided with auxiliary rollers that correspond one-to-one with the outlet paper drive rollers. The outlet paper drive rollers are driven to rotate in the same direction by an outlet drive motor.

[0022] In one possible design, the deflection walkway is provided with a deflection conveyor mechanism on one side and a corresponding auxiliary rubber roller on the other side.

[0023] In one possible design, the converter also includes a third state in which the entrance passage and the transformation passage are blocked, the entrance passage and the exit passage are connected, and the transformation passage and the exit passage are blocked.

[0024] The present invention has at least the following beneficial effects: The device is designed between the upper and lower walkways. After the paper is printed on the upper walkway with the front side facing up, it can enter the device. After the paper is reversed, it enters the lower walkway. When it returns from the lower walkway to the upper walkway, the back side of the paper is facing up, and then the back side of the paper is printed, thus realizing double-sided printing. The present invention only requires one printing head, which reduces costs.

[0025] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the device;

[0027] Figure 2 Schematic diagram of the corridor structure Figure 1 ;

[0028] Figure 3 Schematic diagram of the corridor structure Figure 2 ;

[0029] Figure 4 This is a schematic diagram showing the disassembled state of the device;

[0030] Figure 5 for Figure 4 Enlarged diagram of part A in the diagram;

[0031] Figure 6Schematic diagram of the converter Figure 1 ;

[0032] Figure 7 Schematic diagram of the converter Figure 2 ;

[0033] Figure 8 This is a schematic diagram of the structure of the reversing main rubber roller;

[0034] Figure 9 This is a cross-sectional view of the device;

[0035] Figure 10 for Figure 9 Enlarged schematic diagram of section B, in which the converter is located in the first configuration;

[0036] Figure 11 This is a schematic diagram showing the position of the converter in the second configuration;

[0037] The diagram indicates the following: 100 - Inlet walkway, 101 - Inlet paper drive roller, 200 - Conversion walkway, 300 - Outlet walkway, 301 - Outlet paper drive roller, 400 - Converter, 401 - Conversion shaft, 402 - Rotating block, 403 - Connector, 404 - Push-pull electromagnet, 405 - First connecting rod, 406 - Second connecting rod, 407 - Trapezoidal block, 408 - Circular block, 500 - Directional conveyor. Mechanism, 501-reversing main rubber roller, 502-reversing auxiliary rubber roller, 600-upper walkway, 700-lower walkway, 800-reversing rotary device, 801-electromagnetic rotating component, 802-fixed direction rotating shaft, 803-reversing drive motor, 804-rotating ring, 805-adsorption ring, 806-reversing electromagnet, 807-intermediate rotating shaft, 900-plate without opening, 901-plate with opening, 902-opening, 903-grooving. Detailed Implementation

[0038] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that while these descriptions of embodiments are intended to aid in understanding the invention, they do not constitute a limitation thereof. The specific structural and functional details disclosed herein are merely for describing exemplary embodiments of the invention. However, the invention can be embodied in many alternative forms and should not be construed as being limited to the embodiments described herein.

[0039] It should be noted that, unless otherwise specified, the experimental methods described in the following embodiments are all conventional methods, and the reagents and materials described are all commercially available unless otherwise specified. In the description of this invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0040] like Figure 1-11 An inkjet printing paper commutator includes an inlet channel 100, a conversion channel 200, and an outlet channel 300. One end of the inlet channel 100 is connected to the upper channel 600, and the other end is connected to both the conversion channel 200 and the outlet channel 300. The other end of the outlet channel 300 is connected to the lower channel 700.

[0041] A converter 400 is installed at the three-way connection point of the entrance passage 100, the transformation passage 200, and the exit passage 300. When the converter 400 is in the first state, the entrance passage 100 is connected to the transformation passage 200, and the entrance passage 100 and the exit passage 300 are blocked by the converter, as are the transformation passage 200 and the exit passage 300. When the converter 400 is in the second state, the entrance passage 100 and the transformation passage 200 are blocked, the entrance passage 100 and the exit passage 300 are blocked, and the transformation passage 200 and the exit passage 300 are connected. When the converter 400 is in the third state, the entrance passage 100 and the transformation passage 200 are blocked, the entrance passage 100 and the exit passage 300 are connected, and the transformation passage 200 and the exit passage 300 are blocked.

[0042] The changing walkway 200 is provided with a reversing conveyor mechanism 500, which includes a reversing main rubber roller 501 and a plurality of reversing auxiliary rubber rollers 502. The reversing auxiliary rubber rollers 502 are all driven by the reversing main rubber roller 501 to rotate in the same direction. The reversing main rubber roller 501 is connected to a reversing rotator 800, and the reversing main rubber roller 501 is driven by the reversing rotator 800 to rotate in the forward or reverse direction.

[0043] Existing printers are generally designed with a racetrack-shaped walkway, including upper and lower walkways and curves at both ends, with printheads designed on both the upper walkway 600 and the lower walkway 700.

[0044] This invention mainly modifies a bend in the path, comprising an entrance passage 100, a changing passage 200, and an exit passage 300. One end of the entrance passage 100 connects to the upper passage 600, and one end of the exit passage 300 connects to the lower passage 700. The other ends of the entrance passage 100, the changing passage 200, and the exit passage 300 form a three-way structure. A converter 400 is designed at the three-way structure to control the paper conveying direction, including ensuring that paper can only be conveyed from the entrance passage 100 to the changing passage 200, and only... The paper can be conveyed from the changing corridor 200 to the exit corridor 300. A conveying mechanism 500 is designed in the changing corridor 200 to control the direction of paper movement. The paper first enters the changing corridor 200, and at this time, the conveying direction of the conveying mechanism 500 is from one end closer to the entrance corridor 100 (or exit corridor 300) to the other end. After that, the paper needs to be conveyed from the changing corridor 200 to the exit corridor 300, and the conveying direction of the conveying mechanism 500 is from one end farther away from the entrance corridor 100 (or exit corridor 300) to the other end.

[0045] First, let's explain the reversing transmission mechanism 500, such as... Figure 2 , Figure 3 Its main reversing rubber roller 501 is driven to rotate by the reversing rotor 800, thereby driving the auxiliary reversing rubber roller to rotate.

[0046] It is further confirmed that the inlet aisle 100, the deflection aisle 200, and the outlet aisle 300 are all two-panel structures, which is an existing structure of printers and common knowledge. Generally, drive rollers are designed on one panel, and auxiliary rollers are designed on the other panel. Therefore, the structure is as follows: One side of the inlet aisle 100 has several inlet paper drive rollers 101, and the other side has auxiliary rollers corresponding to the paper drive rollers 101. The inlet paper drive rollers 101 are driven to rotate in the same direction by an inlet drive motor. One side of the outlet aisle 300 has several outlet paper drive rollers 301, and the other side of the outlet aisle 300 has auxiliary rollers corresponding to the outlet paper drive rollers 301. The outlet paper drive rollers 301 are driven to rotate in the same direction by an outlet drive motor. The deflection aisle 200 has a deflection conveyor mechanism 500 on one side and auxiliary rollers on the other side. The main rubber roller 501 and the auxiliary rubber roller 502 in the reversing conveying mechanism 500 each have a corresponding auxiliary rubber roller on the other side.

[0047] Then the reversing actuator 800 is described, such as Figure 8 It includes two electromagnetic rotating parts 801 respectively disposed at both ends of the reversing main rubber roller 501, a fixed rotating shaft 802, and a reversing drive motor 803;

[0048] The electromagnetic rotating component 801 includes a rotating ring 804 sleeved on the reversing main roller 501 and an adsorption ring 805 fixed on the reversing main rubber roller 501. A reversing electromagnet 806 is provided on the adsorption ring 805. When the reversing electromagnet 806 is energized, the rotating ring 804 and the adsorption ring 805 are adsorbed and fixed together. When the reversing electromagnet 806 is de-energized, the rotating ring 804 and the adsorption ring 805 separate.

[0049] An electromagnetic rotating component 801 located at one end of the reversing main rubber roller 501 has a rotating ring 804 connected to a fixed rotating shaft 802 via a belt; an electromagnetic rotating component 801 located at the other end of the reversing main rubber roller 501 has a rotating ring 804 connected to an intermediate rotating shaft 807 via a belt, and the intermediate rotating shaft 807 and the fixed rotating shaft 802 are meshed by gears.

[0050] The reversible drive motor 803 drives the fixed-direction rotating shaft 802 to rotate in a fixed direction.

[0051] Two electromagnetic rotating components 801 are respectively installed at both ends of the reversing main rubber roller 501. When the reversing electromagnet 806 is energized, the adsorption ring 805 and the rotating ring 804 are attracted and fixed together. Because the adsorption ring 805 is fixed to the reversing main rubber roller 501, the rotation of the rotating ring 804 will drive the reversing main rubber roller 501 to rotate. When the reversing electromagnet 806 is de-energized, the adsorption ring 805 separates from the rotating ring 804, and the rotating ring 804 can no longer drive the adsorption ring 805 to rotate. The reversing electromagnet 806 is a ring-shaped reversing electromagnet, a standard structure, and will not be described in detail.

[0052] The electromagnetic rotating component 801 located at one end of the reversing main rubber roller 501 has its rotating ring 804 directly connected to the fixed rotating shaft 802 by a belt. Generally, a rotating ring with anti-slip texture is designed on the fixed rotating shaft 802, and the rotating ring 804 is also designed with anti-slip texture to facilitate belt drive. Since the rotation direction of the fixed rotating shaft 802 is fixed, if the electromagnetic rotating component 801 at that end is attracted and fixed, the rotation direction of the reversing main rubber roller 501 is consistent with that of the fixed rotating shaft 802; the electromagnetic rotating component at the other end... In component 801, the rotating ring 804 passes through an intermediate rotating shaft 807, which has a gear meshing structure with the fixed rotating shaft 802. When the fixed rotating shaft 802 drives the intermediate rotating shaft 807 to rotate, the intermediate rotating shaft 807 and the fixed rotating shaft 802 rotate in opposite directions. Therefore, the rotating ring 804 at this end rotates in the opposite direction to the fixed rotating shaft 802. If the electromagnetic rotating component 801 at this end is attracted and fixed, the rotation direction of the reversing main rubber roller 501 is opposite to that of the fixed rotating shaft 802. This allows control of the rotation direction of the reversing main rubber roller 501, and consequently, the control of the paper conveying direction.

[0053] As can be seen from the figure, the fixed-direction rotating shaft 807 uses an outlet paper drive roller 301 of the outlet walkway 300 to avoid the need for an additional rotating shaft design.

[0054] Further explanation of converter 400, such as Figures 4-7 It includes a conversion shaft 401 and a rotating block 402 fixed on the conversion shaft 401. The conversion shaft 401 is connected to a push-pull electromagnet 404 via a connector 403. The push-pull electromagnet 404 drives the conversion shaft 403 to swing back and forth.

[0055] The connecting member 403 includes a first connecting rod 405 and a second connecting rod 406. One end of the first connecting rod 405 is hinged to the conversion shaft 401, and the other end is hinged to one end of the second connecting rod 406. The other end of the second connecting rod 406 is hinged to a push-pull electromagnet 404. Thus, when the push-pull electromagnet 404 extends or retracts, it causes the conversion shaft 401 to rotate back and forth. The push-pull electromagnet 404 is existing technology, comprising a housing, an electromagnetic core and an electromagnetic rod inside the housing, and the electromagnetic rod extending through the housing and connecting to the second connecting rod 406. A spring is provided between the electromagnetic rod and the electromagnetic core. When the electromagnetic core is energized, the electromagnetic rod is attracted and retracts; when the electromagnetic core is de-energized, the electromagnetic rod is pushed outward by the spring. This is existing technology and will not be elaborated further. Furthermore, this device also connects a spring to the first connecting rod 405 to ensure that the first connecting rod 405 rotates to a set position.

[0056] The connection between the entrance passage 100 and the transformation passage 200 is vertical. The connection includes a plate without an opening 900 and a plate with an opening 901. The plate with an opening 901 is provided with an opening 902. The opening 902 is connected to the exit passage 300. The exit passage 300 extends obliquely upward from the opening 901.

[0057] The rotating block 402 is located at the opening and is trapezoidal in shape. When the rotating block 402 is rotated, the bottom surface of the rotating block 402 is parallel to the opening plate 901. At this time, the rotating block 402 is located inside the exit passage 300, blocking the exit passage 300, and the converter 400 is in the first state. When the conversion shaft 401 is rotated, the rotating block 402 blocks the entrance passage 100, and the converter 400 is in the second state.

[0058] like Figure 10 The converter 400 is in the first state; such as Figure 11 The converter 400 is in the second state.

[0059] like Figures 4-9The rotating block 402 includes several trapezoidal blocks 407 and several circular blocks 408. The conversion shaft 401 is a square shaft, and the trapezoidal blocks 407 and circular blocks 408 are installed alternately on the conversion shaft 401. The slotless plate 900 is provided with slots 903 that correspond one-to-one with the trapezoidal blocks 407. Because the gap between the slotless plate 900 and the plate with openings 901 is the paper path, the gap is very small, which facilitates the rotation of the rotating block 402. Therefore, the rotating block 402 is designed with trapezoidal blocks 407 and circular blocks 408 installed alternately, which will not affect the paper feeding. The slots 903 are designed on the slotless plate 900, and after the rotating block 402 rotates, it is inserted into the slots 903.

[0060] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. An inkjet printing paper commutator, characterized in that, It includes an entrance corridor, a transition corridor, and an exit corridor. One end of the entrance corridor is connected to the upper corridor, and the other end is connected to both the transition corridor and the exit corridor. The other end of the exit corridor is connected to the lower corridor. A converter is installed at the three-way connection point of the entrance corridor, the transformation corridor and the exit corridor. When the converter is in the first state, the entrance corridor and the transformation corridor are connected, and the entrance corridor and the exit corridor are blocked by the converter. When the converter is in the second state, the entrance corridor and the transformation corridor are blocked, the entrance corridor and the exit corridor are blocked, and the transformation corridor and the exit corridor are connected. The changing walkway is equipped with a reversing conveyor mechanism, which includes a reversing main rubber roller and multiple reversing auxiliary rubber rollers. The reversing auxiliary rubber rollers are all driven by the reversing main rubber roller to rotate in the same direction. The reversing main rubber roller is connected to a reversing rotator, which drives the reversing main rubber roller to rotate in the forward or reverse direction. The reversing rotary device includes two electromagnetic rotating components respectively disposed at both ends of the reversing main rubber roller, a fixed rotating shaft, and a reversing transmission motor; The electromagnetic rotating component includes a rotating ring sleeved on the reversing main roller and an adsorption ring fixed on the reversing main rubber roller. A reversing electromagnet is provided on the adsorption ring. When the reversing electromagnet is energized, the rotating ring and the adsorption ring are adsorbed and fixed together. When the reversing electromagnet is de-energized, the rotating ring and the adsorption ring separate. An electromagnetic rotating component located at one end of the reversing main rubber roller has its rotating ring connected to a fixed rotating shaft via a belt; an electromagnetic rotating component located at the other end of the reversing main rubber roller has its rotating ring connected to an intermediate rotating shaft via a belt, and the intermediate rotating shaft and the fixed rotating shaft are meshed by gears. The reversing drive motor drives the fixed shaft to rotate in a fixed direction; The converter includes a conversion shaft and a rotating block fixed on the conversion shaft. The conversion shaft is connected to a push-pull electromagnet via a connector, and the push-pull electromagnet drives the conversion shaft to swing back and forth. The connection between the entrance passage and the transition passage is vertical. The connection includes a plate without an opening and a plate with an opening. The plate with an opening is provided with an opening that communicates with the exit passage. The exit passage extends upward at an angle from the opening. The rotating block is located at the opening and is trapezoidal in shape. When the rotating block is rotated, the bottom surface of the rotating block is parallel to the opening plate. At this time, the rotating block is located in the exit passage and blocks the exit passage. The converter is in the first state. When the conversion shaft is rotated, the rotating block blocks the entrance passage and the converter is in the second state. The entrance walkway is provided with several inlet paper drive rollers on one side and auxiliary rollers corresponding to the paper drive rollers on the other side. The inlet paper drive rollers are driven to rotate in the same direction by the inlet drive motor. One side of the outlet walkway is provided with several outlet paper drive rollers, and the other side of the outlet walkway is provided with auxiliary rollers that correspond one-to-one with the outlet paper drive rollers. The outlet paper drive rollers are driven to rotate in the same direction by an outlet drive motor. The rotating block includes several trapezoidal blocks and several circular blocks, and the conversion shaft is a square shaft. The trapezoidal blocks and circular blocks are installed alternately on the conversion shaft. The open plate is provided with slots that correspond one-to-one with the trapezoidal blocks.

2. The inkjet printing paper commutator as described in claim 1, characterized in that, The connector includes a first connecting rod and a second connecting rod. One end of the first connecting rod is hinged to the conversion shaft, and the other end is hinged to one end of the second connecting rod. The other end of the second connecting rod is hinged to a push-pull electromagnet.

3. The inkjet printing paper commutator as described in claim 1, characterized in that, The deflection walkway is equipped with a deflection conveyor mechanism on one side and a corresponding auxiliary rubber roller on the other side.

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