Printing ink color mixing machine

Abstract

The present invention discloses a printing ink color mixing machine, comprising a frame, a plurality of ink cartridges, and a control unit. The frame is provided with a tray, a slide is slidably connected to a notch of the tray, the slide is provided with an ink outlet, and a first drive mechanism drives the slide to slide. A plurality of ink cartridges are located above the tray and are rotatably connected to the frame via a rotating shaft, and a second drive mechanism drives each of the trays to rotate. Each ink cartridge is provided with an ink suction mechanism, a suction pipe of the ink suction mechanism intersecting the ink cartridge, a one-way valve is provided between the suction pipe and the ink cartridge, a piston is slidably connected to the inner wall of the suction pipe, a rack is provided on the upper part of the piston, a second drive motor for adjusting the rack is fixedly connected to the suction pipe, and the bottom end of the suction pipe is flush and slidably connected to the tray. The printing ink color mixing machine has the beneficial effects of accurate color matching and good sealing effect.

Description

Technical Field

[0001] The present invention relates to the field of printing technology, in particular to a printing ink toner. Background Art

[0002] Color matching in the printing industry is based on color theory. Computers automatically calculate the formula for base inks for any color mixture, simplifying the actual color matching process. The Kubelka-Munk theory, also known as the KM theory, proposes that the absorption and scattering coefficients of light in a mixture of multiple non-transparent substances are linearly related to the absorption and scattering coefficients of each individual non-transparent substance, and that these absorption and scattering coefficients are only related to their reflectivity.

[0003] Based on this theory, some companies manually absorb different types of inks or colors and then mix them to achieve the target color. This method has low working efficiency. When many types of inks or colors are involved, the absorption ratio is often wrong. In addition, long-term inhalation of ink or color solvents by personnel is likely to cause harm to their health.

[0004] For example, the application number is CN201810914192, and the name is “an automatic ink color matching system for printing”, which includes a mixing tank and a protective box. The interior of the protective box is hollow, and the upper end of the protective box is open, and a rectangular mounting plate is installed at the opening. The front and rear walls of the interior of the protective box are provided with horizontal slides of equal height, and the upper front and rear walls of the mixing tank are provided with raised plates for slidingly connecting the horizontal slides. The right end of the protective box is provided with a cylinder, and its piston rod passes through the protective box and is connected to the right end of the mixing tank. The mixing tank is topped with an end cap, with an ink inlet located in the middle of its upper end. Slots communicating with the ink inlets are located on the left and right sides of the upper end of the end cap. Pulleys arranged in an inverted "eight" pattern are mounted on the side walls of the slots. Several sets of ink storage tanks are located at the top of the rectangular mounting plate. Discharge pipes extend through the bottom of the rectangular mounting plate and are connected to the tanks. These pipes contain an ink metering pump and are connected to a hollow rubber discharge nozzle at the bottom. An impact buffer is installed on the left side wall of the protective housing's inner cavity. While this automatic ink color matching system for printing achieves automatic color matching, its low precision often results in significant color variation. Summary of the Invention

[0005] In order to overcome the above-mentioned deficiencies in the prior art, the present invention provides a printing ink toner with accurate color matching and good sealing effect.

[0006] The technical solution of the present invention is:

[0007] A printing ink toner comprises a frame, a plurality of ink cartridges and a control unit, wherein the frame is provided with a tray, the tray is provided with a notch, a slide is slidably connected to the notch, and the slide is provided with an ink outlet, and

[0008] a first driving mechanism for driving the slide to slide;

[0009] A plurality of ink cartridges are located above the tray and are rotatably connected to the frame via a rotating shaft, and

[0010] a second driving mechanism for driving each of the trays to rotate;

[0011] Each ink cartridge is provided with an ink suction mechanism, comprising a straw, the straw intersecting the ink cartridge, a one-way valve being provided between the straw and the ink cartridge, a piston being slidably connected to the inner wall of the straw, a rack being provided on the upper portion of the piston, a second drive motor for adjusting the rack being fixedly connected to the straw, the bottom end of the straw being flush with and slidably connected to the tray;

[0012] The first driving mechanism, the second driving mechanism and each of the second driving motors are electrically connected to the control unit respectively.

[0013] Preferably, a second sliding block and a second sliding track that cooperate with each other are provided between the suction tube of each ink suction mechanism and the ink cartridge, and

[0014] A first spring provides elastic force between the straw and the ink cartridge.

[0015] In any of the above solutions, preferably, a gasket is provided at the position where the bottom end of the suction tube of each ink suction mechanism contacts the tray.

[0016] In any of the above solutions, preferably, the gasket is made of polytetrafluoroethylene.

[0017] In any of the above schemes, it is preferred that the main body of the gasket is in the shape of a hollow cylinder, an annular protrusion is provided on the outer wall of the gasket, the protrusion is spherical, a pressure cover is provided at the bottom of the straw, and a groove adapted to the protrusion is provided on the inner wall of the pressure cover.

[0018] In any of the above schemes, preferably, a flexible baffle is provided on the upper part of the gasket, a sealing gasket is provided on the upper edge of the flexible baffle, the body of the gasket is inserted into the pressure cover, and the sealing gasket is clamped at the bottom of the straw through the pressure cover.

[0019] In any of the above solutions, preferably, a first flange is provided on the outer wall of the straw, a second flange is provided on the gasket, and at least three second springs are evenly distributed between the first flange and the second flange.

[0020] In any of the above solutions, preferably, an annular baffle is provided on the inner wall of the straw near the bottom, a support rod is provided on the upper part of the gasket located at the outlet, and a sealing ball is provided between the annular baffle and the gasket.

[0021] In any of the above solutions, preferably, each of the straws is provided with a proximity switch, a trigger of each of the proximity switches is provided on the slide, and each of the proximity switches is electrically connected to the control unit.

[0022] In any of the above solutions, preferably, the proximity switch is any one of a contact switch, an infrared sensor, and a reed switch.

[0023] The printing ink color mixing machine of the present invention accurately absorbs the ink in the ink cartridge through the ink suction mechanism, operates the ink suction mechanism at the ink cartridge to a specified position through the second driving mechanism, and drives the slide to move to release the ink in the suction tube, thereby realizing accurate absorption and release of each color ink, achieving the beneficial effect of accurate color matching.

[0024] A piston is slidably connected inside the straw, which generates positive and negative pressure inside the straw to achieve the absorption and release of ink. The bottom end of the straw is always in sliding contact with the tray. When each straw releases ink, it flows out through the ink outlet at the slide, thus achieving the beneficial effect of good sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 FIG. 1 is a schematic diagram of an embodiment of a printing ink toning machine according to the present invention.

[0026] Figure 2 FIG. 1 is a schematic diagram of an embodiment of the cooperation between a tray and a slide of a printing ink toner of the present invention.

[0027] Figure 3 It is a schematic diagram of a preferred embodiment of the cooperation between the ink suction mechanism and the ink cartridge of the printing ink toner of the present invention.

[0028] Figure 4 FIG. 1 is a schematic diagram of an ink suction mechanism of a printing ink toner according to an embodiment of the present invention.

[0029] Figure 5 FIG. 1 is a schematic diagram of a preferred embodiment of an ink suction mechanism of a printing ink toning machine according to the present invention.

[0030] Figure 6 FIG. 1 is a circuit connection diagram of an embodiment of a printing ink toner according to the present invention.

[0031] Description of the numbers in the figure:

[0032] 101-second drive motor; 102-rack; 103-rotating shaft; 104-ink cartridge; 105-mounting seat; 106-tray; 107-slide; 108-base; 109-push rod; 110-first support; 111-trigger; 112-proximity switch; 113-strawberry; 114-first slider; 115-ink outlet; 116-first slide; 117-second slide; 118-second slider; 119-first spring; 120-second support; 121-piston; 122-first flange; 123-pressure cover; 124-second spring; 125-sealing gasket; 126-flexible baffle; 127-gasket; 128-support rod; 129-protrusion; 130-second flange; 131-groove; 132-sealing ball; 133-annular baffle; 134-end cover. DETAILED DESCRIPTION

[0033] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0034] In the description of the present invention, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate and simplify the description of the present invention and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not intended to indicate or imply relative importance.

[0035] Example 1:

[0036] The printing film color mixing machine provided by the present invention is used for mixing printing inks to prepare inks of different colors.

[0037] like Figure 1 、 2 In the embodiments shown in Figures 4 and 6, the frame is used to install various components, and the frame includes a base 108 and a rotating shaft 103 rotatably connected to the base 108.

[0038] The tray 106 is fixedly connected to the top of the base 108. A notch in the tray 106 provides sliding space for the slide 107. A first slider 114 is provided on the side of the slide 107, and a first slideway 116 is provided in the notch to mate with the first slider 114. The slide 107 is slidably connected to the notch via the first slider 114 on the body and the first slideway 116 in the notch. To ensure that the bottom of each straw 113 does not leak ink when it slides through the connection between the tray 106 and the slide 107, the slide 107 is selected so that its top surface is flush with the top surface of the tray 106 when connected. An ink outlet 115 on the slide 107 is used to direct ink flowing out of the straw 113.

[0039] The first driving mechanism is used to drive the slide 107 to slide in the notch. Specifically, the first driving mechanism includes a first support 110 and a push rod 109. The first support 110 is provided at the outer edge of the tray 106 and is used to mount the push rod 109. The telescopic rod of the push rod 109 is connected to the slide 107. The position of the slide 107 can be adjusted by extending and retracting the push rod 109 to achieve the purpose of draining the ink in the ink suction mechanism suction tube 113 at the slide 107. The push rod 109 can be a pneumatic push rod or an electric push rod.

[0040] A plurality of ink cartridges 104 are located above the tray 106 and are rotatably connected to the base 108 via a rotating shaft 103. Each ink cartridge 104 is used to hold a different type of ink. Specifically, the ink cartridges 104 are evenly distributed along the circumference of the rotating shaft 103 via mounting seats 105 and are fixedly connected to the rotating shaft 103 via mounting seats 105. A second drive mechanism is used to drive the rotating shaft 103 to rotate. Specifically, the second drive mechanism includes a first drive motor and a driven wheel disposed on the rotating shaft 103. The driving wheel of the first drive motor provides power to the driven wheel via a belt drive, chain drive, or gear meshing drive, thereby driving the rotating shaft 103 to rotate. The rotation of the rotating shaft 103 drives the rotation of each ink cartridge 104. Based on the angle of each ink cartridge 104 and the transmission ratio between the driving wheel and the driven wheel of the first drive motor, the speed of the first drive motor is controlled to ensure that each ink cartridge 104 drives the ink suction mechanism to a designated position on the slide 107. In order to prevent the solvent of the ink in the ink cartridge 104 from volatilizing, a sealing cover is provided on the top of each ink cartridge 104. In order to prevent negative pressure from being generated in the ink cartridge 104 when the ink is sucked, a breathing valve is provided at the sealing cover.

[0041] Each ink cartridge 104 is provided with an ink suction mechanism for aspirating a predetermined amount of ink from each ink cartridge 104 . Specifically, each ink suction mechanism includes a suction tube 113 , each connected to an ink cartridge 104 . Each suction tube 113 intersects the ink cartridge 104 via a conduit. A one-way valve ensures unidirectional flow of ink between the ink cartridge 104 and the suction tube 113 . A piston 121 is slidably connected to the inner wall of the straw 113. A rack 102 arranged on the upper part of the piston 121 is used to drive the piston 121 to slide. To ensure that the rack 102 moves along a certain trajectory, an end cover 134 can be provided at the upper end of the straw 113. The end cover 134 is provided with a notch for constraining the rack 102. The end cover 134 can be connected to the upper end of the straw 113 by a threaded connection. The bottom of the straw 113 is the ink outlet. The bottom edge of the straw 113 is flush with the tray 106 and is slidably connected to the tray 106, ensuring the airtightness between the bottom end of the straw 113 and the tray 106, so that when the straw 113 slides on the tray 106, the ink remaining in each straw 113 will not flow out. The second drive motor 101 is connected to the outer wall of the straw 113 via the second support 120. The driving wheel of the second drive motor 101 meshes with the rack 102. Driven by the second drive motor 101, the piston 121 slides along the inner wall of the straw 113, thereby drawing ink from the ink cartridge 104 and discharging it through the outlet at the bottom of the straw 113. By controlling the rotational speed of the second drive motor 101, the amount of ink drawn in can be accurately controlled.

[0042] The ink cartridges 104 and the suction tubes 113, as well as the connectors between the suction tubes 113 and the ink cartridges 104, are preferably made of rigid materials. Since servo motors or stepper motors can precisely control the number of revolutions and speed, to further improve the accuracy of the operating position of each ink suction mechanism and the accuracy of the ink suction amount, the first and second drive motors 101 can be servo motors or stepper motors.

[0043] The first drive mechanism, the second drive mechanism, and each second drive motor 101 are electrically connected to a control unit. Specifically, the control unit is provided with a number of I / O interfaces, and the push rod 109, the first drive motor 101, and the second drive motor 101 are electrically connected to corresponding I / O interfaces. The control unit can, on the one hand, control the movement of the push rod 109, the first drive motor 101, and the second drive motor 101. On the other hand, the control unit can also have a storage function, storing color information of different ink mixtures in different proportions. When the required color information is input and the preparation amount is determined, the control unit can automatically configure the ink according to the filling position of each color ink.

[0044] In actual use, each ink cartridge 104 is filled with ink of a different color. Once the preset color mixing amount and the mixing ratio of each ink are determined, the control unit controls the first drive motor to operate, driving the first ink cartridge 104 to move above the slide 107. At this time, the second drive motor 101 of the ink suction mechanism of the first ink cartridge 104 operates to accurately suck out the ink of that color according to the mixing amount of that color. When the preset amount is reached, the control unit moves the slide 107 via the push rod 109, so that the ink outlet 115 of the slide 107 is located below the suction tube 113. The control unit controls the second drive motor 101 again to squeeze out the ink in the suction tube 113. When all the ink in the suction tube 113 is squeezed out, the push rod 109 resets the slide 107. The same process is performed when adding other colors of ink.

[0045] It is understood that the functions of the control unit are implemented by the control unit hardware itself and the program installed within it. It should be noted that the program was written based on the aforementioned description of the working principle of the ink color mixing machine. The specific assembly language, function calls, and data debugging methods used in the program writing are all prior art, and the program installed within the control unit of this application is not protected by this scheme.

[0046] Example 2:

[0047] On the basis of Example 1, Figure 3 In the illustrated embodiment, in order to ensure that the bottom end of the suction tube 113 is always in effective contact with the tray 106 and to prevent a gap from being generated between the bottom end of the suction tube 113 and the tray 106 due to mechanical vibration or inertia during startup, a second slider 118 and a second slide 117 that cooperate with each other are provided between the suction tube 113 of each ink suction mechanism and the ink cartridge 104. Each suction tube 113 is slidably connected to the second slide 117 via the second slider 118, and a first spring 119 can be provided between the second slider 118 and the second slide 117.

[0048] During use, the first spring 119 always provides elastic force between the straw 113 and the ink cartridge 104 , so that the bottom end of the straw 113 is always in effective contact with the tray 106 .

[0049] Example 3:

[0050] On the basis of Example 1 or 2, as Figure 5In the illustrated embodiment, a gasket 127 is provided at the point where the bottom end of each ink suction mechanism's suction tube 113 contacts the tray 106. The gasket 127 can be connected to the bottom end of each ink suction mechanism's suction tube 113 by plugging, sleeve-fitting, or snapping. The gasket 127 reduces friction when the suction tube 113 rotates on the tray 106, thereby lowering the load on the first drive motor. It also prevents mechanical damage between the tray 106 and the suction tube 113 when the suction tube 113 slides on the tray 106. The gasket 127 also further enhances the seal between the bottom end of the suction tube 113 and the tray 106.

[0051] In particular, since polytetrafluoroethylene has a certain self-lubricating property, the gasket 127 can be made of polytetrafluoroethylene.

[0052] like Figure 5 In the illustrated embodiment, the gasket 127 has a hollow cylindrical body and an annular protrusion 129 disposed on its outer wall. The protrusion 129 is spherical. A gland 123 is disposed at the bottom of the straw 113. To facilitate quick connection, the gland 123 can be threadedly connected to the bottom of the straw 113. The inner wall of the pressure cover 123 is provided with a groove 131 adapted to the protrusion 129. The outer diameter of the gasket 127 is smaller than the inner diameter of the pressure cover 123. The protrusion 129 on the gasket body is slidably connected with the groove 131 on the pressure cover 123. When in use, the protrusion 129 on the gasket body cooperates with the groove 131 on the pressure cover 123, so that the gasket body can freely adjust its direction within a certain range. When a gap is generated between the bottom end of the straw 113 and the tray 106 due to mechanical vibration or inertia during startup, the gasket 127 can freely adjust its position so that it is always in close contact with the tray 106, thereby preventing ink from flowing out.

[0053] like Figure 5 In the embodiment shown, a flexible baffle 126 is provided on the upper portion of the gasket body, wherein the flexible baffle 126 can be made of rubber. The sealing gasket 125 on the upper edge of the flexible baffle 126 serves to seal the connection between the gland 123 and the bottom end of the straw 113.

[0054] During assembly, bend the sealing gasket 125 and the flexible baffle 126 so that the sealing gasket 125 is positioned between the gland 123 and the bottom end of the straw 113. The body of the gasket 127 is then inserted into the gland 123, and the gland 123 and straw 113 are locked. This design allows for a clearance fit between the protrusion 129 on the gasket body and the groove 131 on the gland 123, thereby reducing friction between the protrusion 129 and the groove 131. This allows for quick adjustment of the angle of the gasket 127 when a gap forms between the bottom end of the straw 113 and the tray 106 due to mechanical vibration or inertia during startup.

[0055] like Figure 5 In the illustrated embodiment, a first flange 122 is provided at the outer wall of the straw 113, and a second flange 130 is provided at the gasket 127. At least three second springs 124 are evenly distributed between the first flange 122 and the second flange 130 to provide elastic force at various angles to the gasket 127. During use, when a gap is generated between the bottom end of the straw 113 and the tray 106 due to mechanical vibration or inertia during startup, the presence of the second spring 124 can further realize rapid adjustment of the angle of the gasket 127.

[0056] Example 4:

[0057] On the basis of any one of Examples 1-3, Figure 5 In the illustrated embodiment, an annular baffle 133 is provided on the inner wall of the straw 113 near the bottom. A support rod 128 is provided above the outlet of the gasket 127. A sealing ball 132 is disposed between the annular baffle 133 and the gasket 127. When the straw 113 is positioned on the tray 106, supported by the tray 106, the sealing ball 132 contacts the annular baffle 133, effectively sealing the bottom of the straw 113 and preventing ink from leaking. When the straw 113 is located at the ink outlet 115 of the slide 107, the ink outlet 115 allows the sealing ball 132 to have a certain downward space. Under the action of gravity and the internal pressure of the straw 113, the upper part of the sealing ball 132 leaves the annular baffle 133 at the straw 113, allowing ink to flow out from the annular baffle 133. With the support of the support rod 128 at the upper part of the outlet of the gasket 127, there is still a certain gap between the sealing ball 132 and the outlet of the gasket 127 for ink to flow out. This design further improves the airtightness of the straw 113 and prevents ink from seeping out of the tray 106.

[0058] Example 5:

[0059] On the basis of any one of Examples 1-4, Figure 1 、 6 In the illustrated embodiment, each straw 113 is provided with a proximity switch 112, and a trigger 111 for each proximity switch 112 is provided on the slide 107. Each proximity switch 112 is electrically connected to a control unit. The trigger 111 is positioned collinearly with the ink outlet 115 on the slide 107 and the rotating shaft 103. During use, the control unit promptly shuts off the first drive motor based on feedback signals from the proximity switches 112, ensuring that the ink outlet 115 on the slide 107 moves to the bottom of the straw 113, thereby ensuring smooth flow of ink into the ink outlet 115.

[0060] Each proximity switch 112 may be any one of a contact switch, an infrared sensor or a reed switch.

[0061] The embodiments described above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, and these should be covered within the protection scope of the present invention.

Claims

1. A printing ink toner, comprising a frame, a plurality of ink cartridges (104) and a control unit, characterized in that: The frame is provided with a tray (106), a notch is provided on the tray (106), a slide (107) is slidably connected to the notch, an ink outlet (115) is provided on the slide (107), a first driving mechanism is used to drive the slide (107) to slide, and a plurality of ink cartridges (104) are located above the tray (106) and are rotatably connected to the frame via a rotating shaft (103), and a second driving mechanism is used to drive the rotating shaft (103) to rotate; Each ink cartridge (104) is provided with an ink suction mechanism, the ink suction mechanism comprising a suction tube (113), the suction tube (113) intersecting the ink cartridge (104), a one-way valve being provided between the suction tube (113) and the ink cartridge (104), a piston (121) being slidably connected to the inner wall of the suction tube (113), a rack (102) being provided on the upper portion of the piston (121), a second driving motor (101) for adjusting the rack (102) being fixedly connected to the suction tube (113), and the bottom end of the suction tube (113) being flush with the tray (106). A gasket (127) is provided at the bottom end of the suction tube (113) of each ink suction mechanism at a position where the bottom end contacts the tray (106); the gasket (127) is in the shape of a hollow cylinder; an annular protrusion (129) is provided on the outer wall of the gasket (127); the protrusion (129) is spherical; a pressure cover (123) is provided at the bottom of the suction tube (113); a groove (131) adapted to the protrusion (129) is provided on the inner wall of the pressure cover (123); a flexible baffle (126) is provided on the upper part of the gasket (127); a sealing gasket (125) is provided on the upper edge of the flexible baffle (126); the gasket (127) is plugged into the pressure cover (123); and the sealing gasket (125) is clamped to the bottom of the suction tube (113) via the pressure cover (123); The first drive mechanism, the second drive mechanism and each second drive motor (101) are electrically connected to the control unit respectively.

2. The printing ink toning machine according to claim 1, wherein: A second sliding block (118) and a second slideway (117) that cooperate with each other are provided between the suction tube (113) of each ink suction mechanism and the ink cartridge (104), and A first spring (119) provides elastic force between the straw (113) and the ink cartridge (104).

3. The printing ink toning machine according to claim 1, wherein: The material of the gasket (127) is polytetrafluoroethylene.

4. The printing ink toning machine according to claim 1, wherein: A first flange (122) is provided on the outer wall of the straw (113), a second flange (130) is provided on the gasket (127), and at least three second springs (124) are evenly distributed between the first flange (122) and the second flange (130).

5. The printing ink toning machine according to claim 1, wherein An annular baffle (133) is provided on the inner wall of the suction tube (113) near the bottom, a support rod (128) is provided on the upper portion of the gasket (127) located at the outlet, and a sealing ball (132) is provided between the annular baffle (133) and the gasket (127).

6. The printing ink toning machine according to claim 1, wherein: Each straw (113) is provided with a proximity switch (112), and a trigger (111) of each proximity switch (112) is provided on the slide (107). Each proximity switch (112) is electrically connected to the control unit.

7. The printing ink toning machine according to claim 6, wherein: The proximity switch (112) is any one of a contact switch, an infrared sensor, and a reed switch.

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