An automatic dispensing device and process for UV spot color inks

Abstract

This invention discloses an automatic batching device and process for UV spot color inks, belonging to the technical field of UV ink production equipment. The invention features a batching and mixing tank on a working platform, with an automatic feeding mechanism on one side of the tank. The automatic feeding mechanism pours the main material from the main material batching cylinder into the batching and mixing tank. Multiple auxiliary material batching cylinders for storing different auxiliary materials are arranged side-by-side on a first support frame. Multiple quantitative batching mechanisms on a fourth support frame quantitatively add different auxiliary materials from each auxiliary material batching cylinder into the batching and mixing tank. The automatic feeding mechanism pours the main material from the main material batching cylinder into the batching and mixing tank, and the quantitative batching mechanisms quantitatively add different auxiliary materials from each auxiliary material batching cylinder into the batching and mixing tank. A stirring mechanism mixes and stirs the main material and auxiliary materials, improving production efficiency, enhancing the quality and uniformity of the finished ink, and saving manpower and resources.

Description

Technical Field

[0001] This invention belongs to the technical field of UV ink production equipment, specifically relating to an automatic batching device and process for UV spot color inks. Background Technology

[0002] UV spot color ink is a type of ink that cures rapidly under UV (ultraviolet) irradiation. UV ink contains special photosensitizers and monomers. It utilizes ultraviolet light of different wavelengths and energies to polymerize the monomers in the ink binder, causing the ink to form a film and dry. UV ink must possess vibrant colors, good printability, suitable curing and drying rates, good adhesion, and properties such as abrasion resistance, corrosion resistance, and weather resistance.

[0003] The main components of UV inks include polymerizable prepolymers, photosensitive monomers, and photoinitiators. Polymerizable prepolymers are crucial components determining the performance of UV varnish coatings and are generally classified according to their skeletal structure. The skeletal structure affects coating hardness, abrasion resistance, adhesion, lightfastness, chemical resistance, and water resistance. Photosensitive monomers (reactive diluents) form a solid film through polymerization under ultraviolet light irradiation. Common monomers include acrylates and epoxy acrylates; different monomer combinations can adjust the ink's viscosity, hardness, and chemical resistance. Photoinitiators absorb ultraviolet light energy, generating free radicals that initiate the polymerization reaction in the ink. Auxiliary materials for UV inks include coloring pigments, leveling agents, defoamers, and polymerization inhibitors, used to provide the desired color and gloss effects, while also adjusting the ink's rheology and enhancing its printability and durability.

[0004] Therefore, an automatic UV spot color ink dispensing device is needed to automatically mix the main material and the auxiliary material to ensure accurate ink ratio and meet printing quality requirements. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide an automatic batching device and process for UV spot color inks that improves production efficiency, finished ink quality and ink uniformity.

[0006] The technical solution adopted to solve the above-mentioned technical problems is as follows: A mixing tank is set on the working platform, and an automatic feeding mechanism is set on one side of the mixing tank. The automatic feeding mechanism is equipped with a main ingredient mixing cylinder for storing the main ingredient. The automatic feeding mechanism pours the main ingredient from the main ingredient mixing cylinder into the mixing tank. A first support frame is set on the other side of the mixing tank. Multiple auxiliary ingredient mixing cylinders for storing different auxiliary ingredients are arranged side by side on the first support frame. A fourth support frame is set on the other side of the mixing tank, below the first support frame. Multiple auxiliary ingredient mixing cylinders for storing different auxiliary ingredients are arranged on the fourth support frame. A quantitative dispensing mechanism for quantitatively adding auxiliary materials into a mixing tank is provided. The mixing tank is equipped with a stirring mechanism for mixing and dispensing the main materials and auxiliary materials. The quantitative dispensing mechanism comprises: a connecting cylinder at the bottom of the auxiliary material dispensing cylinder; an inlet at the top of the connecting cylinder communicating with the outlet end of the auxiliary material dispensing cylinder; an outlet at the bottom of the connecting cylinder communicating with the inlet end of a first discharge pipe; the outlet end of the first discharge pipe being located above the inlet end of the mixing tank; a third support plate located on one side of the auxiliary material dispensing cylinder on a first support frame; a first connecting rod rotatably mounted on the third support plate; and a fixed device on the first connecting rod. Equipped with an arc-shaped plate, a first connecting rod is fixedly connected to one end of a first spring, and the other end of the first spring is fixedly connected to a third support plate. An arc-shaped sliding hole is machined on the third support plate to slidably connect with the arc-shaped plate. A first motor driving the first connecting shaft to rotate is installed on the first support plate of the third support plate. Multiple hexagonal retaining shafts are installed on the first connecting shaft. A rotating cylinder is installed on the outer circumference of each hexagonal retaining shaft. A hexagonal retaining hole is machined in the center of the rotating cylinder to engage with the hexagonal retaining shaft. The rotating cylinder is located inside a connecting cylinder and is rotatably connected to it. A connecting channel is machined inside the rotating cylinder, and a connection point is machined on the top of the outer circumference of the rotating cylinder to the connecting channel. The rotating cylinder has a first connecting hole that communicates with the feed inlet. A second connecting hole, which communicates with the connecting channel, is machined on the outer circumference side of the rotating cylinder. The second connecting hole communicates with the discharge outlet. A third connecting hole, which communicates with the connecting channel, is machined on the bottom of the outer circumference of the rotating cylinder. An extrusion cylinder is installed at the bottom of the rotating cylinder. The third connecting hole communicates with the inlet end of the extrusion cylinder. A piston rod is slidably connected inside the extrusion cylinder. A sliding block, which is slidably connected to the arc surface of the arc plate, is installed at the bottom of the piston rod. A second spring is installed on the piston rod. One end of the second spring is fixedly connected to the bottom of the extrusion cylinder, and the other end of the second spring is fixedly connected to the sliding block.

[0007] Furthermore, each of the auxiliary material dispensing cylinders is slidably fitted with a dust cover for covering the opening of the auxiliary material dispensing cylinder.

[0008] Furthermore, the bottom outlet end of the mixing tank is provided with a second discharge pipe that is connected to it, and a valve is provided on the second discharge pipe.

[0009] Furthermore, the fourth support frame is provided with a support cylinder, and a second motor is provided on the fourth support frame to drive the lead screw to rotate. The lead screw is threadedly connected to the sliding plate. The sliding plate is provided with a second connecting rod that is slidably connected to the inside of the support cylinder in a vertical direction. The top of the second connecting rod is provided with an abutting block that abuts against the bottom of the arc plate. The abutting block causes the arc plate to swing in the arc-shaped sliding hole by abutting against the bottom of the arc plate.

[0010] Furthermore, the stirring mechanism is as follows: a second support plate is provided above the opening of the mixing tank, a third motor is provided on the second support plate to drive the first rotating shaft to rotate, a fixed cylinder is provided at the bottom of the second support plate to be rotatably connected to the first rotating shaft, the first rotating shaft is located inside the fixed cylinder, and stirring rods for stirring and mixing the main ingredients and auxiliary ingredients in the mixing tank are evenly arranged in the circumferential direction on the first rotating shaft, and multiple stirring rods are respectively located inside the mixing tank.

[0011] Furthermore, the automatic feeding mechanism comprises: a contact plate on one side of the mixing tank; vertical plates on both sides of the contact plate on the working platform; racks on one side of each vertical plate on the mixing tank; a lower fixed pulley rotatably mounted at the bottom of each vertical plate; a fourth motor driving the lower fixed pulley to rotate on one of the vertical plates; two lower fixed pulleys fixedly connected by a second connecting shaft; an upper fixed pulley rotatably mounted at the top of each vertical plate; each rope wound around the upper and lower fixed pulleys on the same side; one end of each rope fixedly connected to a fixed end; and a second rotating shaft rotatably mounted between the two fixed ends. Each vertical plate is provided with a vertical sliding hole that slides vertically to the second rotating shaft. The second rotating shaft is provided with a snap-fit ​​plate that is fixedly connected to the base. Gears are provided on both sides of the snap-fit ​​plate at both ends of the base. Each gear meshes with a corresponding rack. The snap-fit ​​plate abuts against the contact plate. Fixed rods are provided on both sides of the base. Each fixed rod is slidably connected with a gripper in the horizontal direction. One end of the gripper is slidably connected to the base in the horizontal direction. A third spring is provided on each fixed rod. One end of each third spring is fixedly connected to the gripper, and the other end of each third spring is fixedly connected to the base. The two grippers hold the main material dispensing cylinder.

[0012] A dispensing process using an automatic UV spot color ink dispensing device includes the following steps:

[0013] S1, the automatic feeding mechanism pours the main material batching cylinder containing one main material into the batching and mixing tank; the automatic feeding mechanism then pours the main material batching cylinder containing another main material into the batching and mixing tank.

[0014] S2, different auxiliary materials are added to each auxiliary material dispensing cylinder. The output shaft of the first motor drives the first connecting shaft to rotate in both directions. The first connecting shaft drives multiple rotating cylinders and extrusion cylinders to reciprocate through multiple hexagonal clamps. When the first connecting hole on each rotating cylinder rotates to connect with the feed inlet of the connecting cylinder, the auxiliary materials in each auxiliary material dispensing cylinder enter the extrusion cylinder sequentially through the feed inlet, the first connecting hole, the connecting channel, and the third connecting hole. When the second connecting hole on each rotating cylinder rotates to connect with the discharge outlet of the connecting cylinder, the sliding block at the bottom of the piston rod on each extrusion cylinder moves to contact the arc surface of the arc plate, and each second spring is compressed. Each piston rod pushes the auxiliary materials in the extrusion cylinder sequentially through the rotating cylinder, the first connecting hole, the connecting channel, and the third connecting hole. The connecting channel, the second connecting hole, the discharge port, and the first discharge pipe enter the mixing tank. At the same time, the output shaft of the second motor located at the bottom of the extrusion cylinder drives the lead screw to rotate. Each sliding disc slides vertically on the lead screw. Each sliding disc drives the contact block to move vertically to contact the bottom of the arc plate through the second connecting rod. The second connecting rod slides vertically inside the support cylinder. Each first connecting rod rotates on the third support plate. Each arc plate swings in the arc sliding hole. According to the different auxiliary material feed amount in each auxiliary material mixing cylinder, the auxiliary material feed amount in the extrusion cylinder into the mixing tank is controlled by controlling the height of the contact block, the swing amplitude of the arc plate, and the stroke of the piston rod in the extrusion cylinder.

[0015] S3, the stirring mechanism stirs and mixes various main ingredients and auxiliary ingredients in the mixing tank to prepare the ingredients.

[0016] Furthermore, the method by which the automatic feeding mechanism in step S1 pours the main material batching cylinder containing one main material into the batching and mixing tank is as follows: the output shaft of the fourth motor drives the lower fixed pulley on one side to rotate, and the lower fixed pulley drives the lower fixed pulley on the other side to rotate through the second connecting shaft. Each lower fixed pulley drives the rope to drive the upper fixed pulley. Each rope drives the second rotating shaft to slide vertically in the vertical sliding hole of the vertical plate through the fixed end. The second rotating shaft drives the base to move vertically through the snap-fit ​​plate. During the movement, the snap-fit ​​plate abuts against the contact plate. The second rotating shaft drives the gears on both sides to move to mesh with the rack and pinion. The gears rotate sequentially through the second rotating shaft, snap-fit ​​plate, and base. The main material batching cylinder held by the two grippers on the base tilts, and the main material in the main material batching cylinder enters the batching and mixing tank.

[0017] Furthermore, the method by which the stirring mechanism in step S3 stirs and mixes the various main ingredients and auxiliary ingredients in the mixing tank is as follows: the output shaft of the third motor drives the first rotating shaft to rotate in the fixed cylinder, and the first rotating shaft drives multiple circumferential stirring rods to rotate, thereby stirring and mixing the main ingredients and auxiliary ingredients in the mixing tank.

[0018] Furthermore, each of the second motors has a different rotational speed.

[0019] The beneficial effects of the present invention are as follows: (1) The present invention uses an automatic feeding mechanism to pour the main material in the main material batching cylinder into the batching mixing tank. The main material includes polymerizable prepolymer, photosensitive monomer, photoinitiator, etc. The quantitative batching mechanism adds different auxiliary materials from each auxiliary material batching cylinder into the batching mixing tank in a quantitative manner. The auxiliary materials include coloring pigment, leveling agent, defoamer, polymerization inhibitor, etc. The stirring mechanism mixes and stirs the main material and auxiliary materials, which can improve production efficiency, and at the same time improve the quality and uniformity of the finished ink, saving manpower and material resources.

[0020] (2) In the feeding process of the present invention, when the first connecting hole on the rotating cylinder is rotated to communicate with the feed inlet of the connecting cylinder, the auxiliary material in the auxiliary material batching cylinder enters the extrusion cylinder in sequence through the feed inlet, the first connecting hole, the connecting channel, and the third connecting hole. In the discharge process, when the second connecting hole on the rotating cylinder is rotated to communicate with the discharge outlet of the connecting cylinder, the sliding block at the bottom of the piston rod moves to contact the arc surface of the arc plate. The piston rod pushes the auxiliary material in the extrusion cylinder into the batching and mixing tank in sequence through the rotating cylinder, the connecting channel, the second connecting hole, the discharge outlet, and the first discharge pipe. The auxiliary material can be quantitatively added to the batching and mixing tank.

[0021] (3) The present invention adopts the method of controlling the amount of auxiliary material in the extrusion cylinder to enter the mixing tank according to the different amount of auxiliary material in each auxiliary material feeding cylinder and the different speed of each second motor. The method controls the amount of auxiliary material in the extrusion cylinder to enter the mixing tank by controlling the height of the contact block, the swing amplitude of the arc plate, and the stroke of the piston rod in the extrusion cylinder. This method can control the different amount of auxiliary material in each auxiliary material feeding cylinder to enter the mixing tank. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of one embodiment of the automatic dispensing device for UV spot color inks of the present invention.

[0023] Figure 2 This is a schematic diagram of the quantitative dispensing mechanism.

[0024] Figure 3 This is a schematic diagram of the arc-shaped sliding hole.

[0025] Figure 4 yes Figure 2 A structural diagram with some parts removed.

[0026] Figure 5 yes Figure 4 A structural diagram with some parts removed.

[0027] Figure 6 This is a schematic diagram of the structure of a communicating cylinder.

[0028] Figure 7 This is a structural schematic diagram of the first connecting shaft, the rotating cylinder, and the extrusion cylinder.

[0029] Figure 8 yes Figure 7 A structural diagram from another angle.

[0030] Figure 9 This is a schematic diagram of the internal structure of the rotating cylinder.

[0031] Figure 10 This is a schematic diagram of the internal structure of the third connecting hole on the rotating cylinder.

[0032] Figure 11 This is a schematic diagram of the internal structure of the first connecting hole on the rotating cylinder.

[0033] Figure 12 This is a schematic diagram of the internal structure of the second connecting hole on the rotating cylinder.

[0034] Figure 13 This is a schematic diagram of the stirring mechanism.

[0035] Figure 14 This is a schematic diagram of the automatic feeding mechanism.

[0036] Figure 15 yes Figure 14 A structural diagram from another angle.

[0037] Figure 16 yes Figure 14 A partial structural diagram.

[0038] Figure 17 yes Figure 16 A structural diagram from another angle.

[0039] Reference numerals: 1. First support frame; 2. Auxiliary material dispensing cylinder; 301. Arc-shaped sliding hole; 302. Third support plate; 303. First motor; 304. Support cylinder; 305. Second motor; 306. Arc-shaped plate; 307. First connecting rod; 308. First spring; 309. Extrusion cylinder; 310. Piston rod; 311. Second spring; 312. Contact block; 313. Second connecting rod; 314. Lead screw; 315. Sliding disc; 316. Connecting cylinder; 317. Rotating cylinder; 318. First discharge pipe; 319. Sliding block; 320. Feed inlet; 321. Discharge outlet; 322. First connecting shaft; 323. Hexagonal retaining shaft; 324. First connecting hole; 325. Second connecting hole; 326. Third connecting hole; 327. First support 328. Plate; 329. Hexagonal snap-fit ​​hole; 4. Connecting channel; 5. Dust cover; 6. Fourth support frame; 701. Batching mixing tank; 702. Stirring rod; 703. First rotating shaft; 704. Fixed cylinder; 705. Third motor; 706. Second support plate; 8. Main material batching cylinder; 901. Vertical sliding hole; 902. Vertical plate; 903. Rack; 904. Contact plate; 905. Upper fixed pulley; 906. Rope; 907. Fixed end; 908. Fourth motor; 909. Lower fixed pulley; 910. Base; 911. Second connecting shaft; 912. Gripper; 913. Third spring; 914. Fixed rod; 915. Gear; 916. Second rotating shaft; 917. Snap-fit ​​plate; 10. Working platform; 11. Valve; 12. Second discharge pipe. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0041] like Figure 1 As shown, the automatic UV spot color ink dispensing device of this embodiment is composed of a first support frame 1, an auxiliary material dispensing cylinder 2, a quantitative dispensing mechanism, a dust cover 4, a fourth support frame 5, a dispensing mixing tank 6, a stirring mechanism, a main material dispensing cylinder 8, an automatic feeding mechanism, a working platform 10, a valve 11, and a second discharge pipe 12.

[0042] A mixing tank 6 is provided on the working platform 10. An automatic feeding mechanism is provided on one side of the mixing tank 6. The automatic feeding mechanism is provided with a main material mixing cylinder 8 for storing the main material. The main material includes polymeric prepolymer, photosensitive monomer, photoinitiator, etc. The automatic feeding mechanism pours the main material from the main material mixing cylinder 8 into the mixing tank 6. A first support frame 1 is provided on the other side of the mixing tank 6. Multiple auxiliary material mixing cylinders 2 for storing different auxiliary materials are arranged side by side on the first support frame 1. The auxiliary materials include coloring pigments, leveling agents, defoamers, and polymerization inhibitors. A dust cover 4 for covering the opening of the auxiliary material mixing cylinder 2 is slidably installed on the opening of each auxiliary material mixing cylinder 2. A fourth support frame 5 is located on the other side of the mixing tank 6, below the first support frame 1. The fourth support frame 5 is equipped with multiple metering mechanisms that quantitatively add different auxiliary materials from each auxiliary material mixing cylinder 2 into the mixing tank 6. The mixing tank 6 is equipped with a stirring mechanism for mixing and agitating the main and auxiliary materials. A second discharge pipe 12, connected to the bottom outlet of the mixing tank 6, is installed, and a valve 11 is mounted on the second discharge pipe 12.

[0043] like Figures 2 to 12 As shown, the quantitative dispensing mechanism is composed of a third support plate 302, a first motor 303, a support cylinder 304, a second motor 305, an arc plate 306, a first connecting rod 307, a first spring 308, a pressing cylinder 309, a piston rod 310, a second spring 311, a contact block 312, a second connecting rod 313, a lead screw 314, a sliding disc 315, a connecting cylinder 316, a rotating cylinder 317, a first discharge pipe 318, a sliding block 319, a feed inlet 320, a discharge outlet 321, a first connecting shaft 322, a hexagonal clamping shaft 323, a first connecting hole 324, a second connecting hole 325, a third connecting hole 326, a first support plate 327, a hexagonal clamping hole 328, and a connecting channel 329.

[0044] The quantitative dispensing mechanism is as follows: A connecting cylinder 316 is provided at the bottom of the auxiliary material dispensing cylinder 2. An inlet 320, communicating with the outlet end of the auxiliary material dispensing cylinder 2, is machined at the top of the connecting cylinder 316. An outlet 321, communicating with the inlet end of the first discharge pipe 318, is machined at the bottom of the connecting cylinder 316. The outlet end of the first discharge pipe 318 is located above the inlet end of the mixing tank 6. A third support plate 302, located on one side of the auxiliary material dispensing cylinder 2, is provided on the first support frame 1. A first connecting rod 307 is rotatably mounted on the third support plate 302. A fixed mounting plate is installed on the first connecting rod 307. An arc-shaped plate 306 is mounted on the first connecting rod 307, which is fixedly connected to one end of a first spring 308. The other end of the first spring 308 is fixedly connected to a third support plate 302. An arc-shaped sliding hole 301 is machined on the third support plate 302 to slide with the arc-shaped plate 306. A first motor 303 for driving the first connecting shaft 322 to rotate is mounted on the first support plate 327 of the third support plate 302. A plurality of hexagonal retaining shafts 323 are mounted on the first connecting shaft 322. A rotating cylinder 317 is mounted on the outer circumference of the hexagonal retaining shaft 323. A center part for the hexagonal retaining shaft 323 is machined in the middle. The hexagonal snap-fit ​​hole 328 of the shaft 323 is used for snap-fitting. The rotating cylinder 317 is located inside the connecting cylinder 316 and is rotatably connected to the connecting cylinder 316. A connecting channel 329 is machined inside the rotating cylinder 317. A first connecting hole 324, which communicates with the connecting channel 329, is machined on the top of the outer circumference of the rotating cylinder 317. The first connecting hole 324 communicates with the feed inlet 320. A second connecting hole 325, which communicates with the connecting channel 329, is machined on the side of the outer circumference of the rotating cylinder 317. The second connecting hole 325 communicates with the discharge outlet 321. The bottom of the outer circumference is machined with a third connecting hole 326 that communicates with the connecting channel 329. The bottom of the rotating cylinder 317 is provided with an extrusion cylinder 309. The third connecting hole 326 communicates with the inlet end of the extrusion cylinder 309. A piston rod 310 is slidably connected inside the extrusion cylinder 309. The bottom of the piston rod 310 is provided with a sliding block 319 that is slidably connected with the arc surface of the arc plate 306. A second spring 311 is provided on the piston rod 310. One end of the second spring 311 is fixedly connected to the bottom of the extrusion cylinder 309, and the other end of the second spring 311 is fixedly connected to the sliding block 319.

[0045] The fourth support frame 5 is provided with a support cylinder 304 and a second motor 305 that drives the lead screw 314 to rotate. The lead screw 314 is threadedly connected to the sliding plate 315. The sliding plate 315 is provided with a second connecting rod 313 that slides vertically to the inside of the support cylinder 304. The top of the second connecting rod 313 is provided with an abutting block 312 that abuts against the bottom of the arc plate 306. The abutting block 312 drives the arc plate 306 to swing in the arc-shaped sliding hole 301 by abutting against the bottom of the arc plate 306.

[0046] like Figure 13As shown, the stirring mechanism is composed of a stirring rod 701, a first rotating shaft 702, a fixed cylinder 703, a third motor 704, and a second support plate 705.

[0047] The stirring mechanism is as follows: a second support plate 705 is provided above the opening of the mixing tank 6, a third motor 704 is provided on the second support plate 705 to drive the first rotating shaft 702 to rotate, a fixed cylinder 703 is provided at the bottom of the second support plate 705 and is rotatably connected to the first rotating shaft 702, the first rotating shaft 702 is located inside the fixed cylinder 703, and stirring rods 701 are evenly arranged in the circumferential direction on the first rotating shaft 702 for stirring and mixing the main ingredients and auxiliary ingredients in the mixing tank 6, and multiple stirring rods 701 are located inside the mixing tank 6.

[0048] like Figures 14 to 17 As shown, the automatic feeding mechanism is composed of a vertical sliding hole 901, a vertical plate 902, a rack 903, a contact plate 904, an upper fixed pulley 905, a rope 906, a fixed end 907, a fourth motor 908, a lower fixed pulley 909, a base 910, a second connecting shaft 911, a gripper 912, a third spring 913, a fixed rod 914, a gear 915, a second rotating shaft 916, and a snap-fit ​​plate 917.

[0049] The automatic feeding mechanism consists of: a contact plate 904 on one side of the mixing tank 6; vertical plates 902 on both sides of the contact plate 904 on the working platform 10; racks 903 on one side of each vertical plate 902 on the mixing tank 6; a lower fixed pulley 909 rotatably mounted at the bottom of each vertical plate 902; a fourth motor 908 driving the lower fixed pulley 909 to rotate on one of the vertical plates 902; two lower fixed pulleys 909 fixedly connected by a second connecting shaft 911; an upper fixed pulley 905 rotatably mounted at the top of each vertical plate 902; and a rope 906 wound around the upper fixed pulley 905 and the lower fixed pulley 909 on the same side, with one end of each rope 906 fixedly connected to a fixed end 907; a second rotating shaft 916 rotatably mounted between the two fixed ends 907; and a second rotating shaft 916 rotatably mounted between each vertical plate 902. Each shaft 916 is provided with a vertical sliding hole 901 that is slidably connected to the second shaft 916 in the vertical direction. The second shaft 916 is provided with a snap-fit ​​plate 917 that is fixedly connected to the base 910. The base 910 is provided with gears 915 located on both sides of the snap-fit ​​plate 917. Each gear 915 meshes with a corresponding rack 903. The snap-fit ​​plate 917 abuts against the contact plate 904. The base 910 is provided with a fixing rod 914 on both sides. Each fixing rod 914 is slidably connected with a gripper 912 in the horizontal direction. One end of the gripper 912 is slidably connected to the base 910 in the horizontal direction. Each fixing rod 914 is provided with a third spring 913. One end of each third spring 913 is fixedly connected to the gripper 912, and the other end of each third spring 913 is fixedly connected to the base 910. The two grippers 912 hold the main material dispensing cylinder 8.

[0050] The dispensing process of the automatic dispensing device for UV spot color inks in this embodiment includes the following steps:

[0051] S1, the automatic feeding mechanism pours the main material batching cylinder 8 containing one main material into the batching and mixing tank 6, and the automatic feeding mechanism pours the main material batching cylinder 8 containing another main material into the batching and mixing tank 6.

[0052] The automatic feeding mechanism pours the main ingredient batching cylinder 8, which stores one main ingredient, into the batching mixing tank 6 as follows: The output shaft of the fourth motor 908 drives one of the lower fixed pulleys 909 to rotate. One of the lower fixed pulleys 909 drives the other lower fixed pulley 909 to rotate via the second connecting shaft 911. Each lower fixed pulley 909 drives a rope 906 to drive an upper fixed pulley 905. Each rope 906 drives a second rotating shaft 916 to slide vertically in the vertical sliding hole 901 of the vertical plate 902 via a fixed end 907. The second rotating shaft 916 is connected by a snap-fit ​​mechanism. Plate 917 drives base 910 to move vertically. During the movement, snap-fit ​​plate 917 abuts against contact plate 904. Second rotating shaft 916 drives gears 915 on both sides to move to mesh with rack 903. Gears 915 drive base 910 to rotate through second rotating shaft 916 and snap-fit ​​plate 917 in sequence. Base 910 drives the main material mixing cylinder 8 held by two grippers 912 to tilt. The main material in the main material mixing cylinder 8 enters mixing tank 6. Replace the main material mixing cylinder 8 held between the two grippers 912 to pour the other main material into mixing tank 6.

[0053] S2, different auxiliary materials are added to each auxiliary material dispensing cylinder 2. The output shaft of the first motor 303 drives the first connecting shaft 322 to rotate in both directions. The first connecting shaft 322 drives multiple rotating cylinders 317 and extrusion cylinders 309 to reciprocate through multiple hexagonal clamping shafts 323. When the first connecting hole 324 on each rotating cylinder 317 rotates to connect with the feed port 320 of the connecting cylinder 316, the auxiliary materials in each auxiliary material dispensing cylinder 2 enter the extrusion cylinder 309 in sequence through the feed port 320, the first connecting hole 324, the connecting channel 329, and the third connecting hole 326. The above process is the material suction process.

[0054] When the second connecting hole 325 on each rotating cylinder 317 rotates to connect with the discharge port 321 of the connecting cylinder 316, the sliding block 319 at the bottom of the piston rod 310 on each extrusion cylinder 309 moves to contact the arc surface of the arc plate 306, each second spring 311 is compressed, and each piston rod 310 sequentially passes the auxiliary material in the extrusion cylinder 309 through the rotating cylinder 317, the connecting channel 329, the second connecting hole 325, the discharge port 321, and the first discharge pipe 318 into the mixing tank 6. The above process is the discharge process.

[0055] Simultaneously, the output shaft of each second motor 305 located at the bottom of the extrusion cylinder 309 drives the lead screw 314 to rotate. Each sliding disc 315 slides vertically on the lead screw 314. Each sliding disc 315 drives the contact block 312 to move vertically to contact the bottom of the arc plate 306 via the second connecting rod 313. The second connecting rod 313 slides vertically inside the support cylinder 304. Each first connecting rod 307 rotates on the third support plate 302. Each arc plate 306 swings in the arc-shaped sliding hole 301. According to the different feed amounts of auxiliary materials in each auxiliary material feeding cylinder 2, the contact block 31 is controlled sequentially. The height of the 2, the swing amplitude of the arc plate 306, and the stroke of the piston rod 310 in the extrusion cylinder 309 control the amount of auxiliary material fed into the mixing tank 6 from the extrusion cylinder 309. The rotation speed of each second motor 305 is different. The higher the height of the contact block 312, the greater the swing amplitude of the arc plate 306 and the longer the stroke of the piston rod 310 in the extrusion cylinder 309. The more auxiliary material is fed into the mixing tank 6 from the extrusion cylinder 309, the more auxiliary material is fed into the mixing tank 6 from the extrusion cylinder 309. Conversely, the less auxiliary material is fed into the mixing tank 6 from the extrusion cylinder 309, the less auxiliary material is fed into the mixing tank 6 from the extrusion cylinder 309. This controls the amount of auxiliary material fed into the mixing tank 6 from each type of auxiliary material.

[0056] S3, the stirring mechanism stirs and mixes various main ingredients and auxiliary ingredients in the batching mixing tank 6 to form batches.

[0057] The method by which the stirring mechanism stirs and mixes the various main ingredients and auxiliary ingredients in the mixing tank 6 is as follows: the output shaft of the third motor 704 drives the first rotating shaft 702 to rotate in the fixed cylinder 703, and the first rotating shaft 702 drives multiple circumferential stirring rods 701 to rotate, thereby stirring and mixing the main ingredients and auxiliary ingredients in the mixing tank 6.

[0058] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. An automatic dispensing device for UV spot color inks, characterized in that: A mixing tank (6) is provided on the working platform (10). An automatic feeding mechanism is provided on one side of the mixing tank (6). A main material feeding cylinder (8) for storing the main material is provided on the automatic feeding mechanism. The automatic feeding mechanism pours the main material in the main material feeding cylinder (8) into the mixing tank (6). A first support frame (1) is provided on the other side of the mixing tank (6). Multiple auxiliary material feeding cylinders (2) for storing different auxiliary materials are arranged side by side on the first support frame (1). A fourth support frame (5) is provided on the other side of the mixing tank (6) below the first support frame (1). Multiple quantitative feeding mechanisms are provided on the fourth support frame (5) to quantitatively add different auxiliary materials from each auxiliary material feeding cylinder (2) into the mixing tank (6). A stirring mechanism for mixing and stirring the main material and auxiliary materials is provided inside the mixing tank (6). The quantitative dispensing mechanism is as follows: a connecting cylinder (316) is provided at the bottom of the auxiliary material dispensing cylinder (2), and an inlet (320) is machined at the top of the connecting cylinder (316) to communicate with the outlet end of the auxiliary material dispensing cylinder (2). An outlet (321) is machined at the bottom of the connecting cylinder (316) to communicate with the inlet end of the first discharge pipe (318). The outlet end of the first discharge pipe (318) is located above the inlet end of the mixing tank (6). A third support plate (302) is provided on the first support frame (1) on one side of the auxiliary material dispensing cylinder (2). A first connecting rod (307) is rotatably installed on the third support plate (302). A fixed mounting is installed on the first connecting rod (307). An arc-shaped plate (306) is mounted on the first connecting rod (307), which is fixedly connected to one end of the first spring (308). The other end of the first spring (308) is fixedly connected to the third support plate (302). An arc-shaped sliding hole (301) that slides with the arc-shaped plate (306) is machined on the third support plate (302). A first motor (303) that drives the first connecting shaft (322) to rotate is provided on the first support plate (327) of the third support plate (302). A plurality of hexagonal retaining shafts (323) are provided on the first connecting shaft (322). A rotating cylinder (317) is provided on the outer circumference of the hexagonal retaining shaft (323). A hole that connects with the hexagonal retaining shaft is machined in the middle of the rotating cylinder (317). (323) A hexagonal snap-fit ​​hole (328) is used for snap-fitting. The rotating cylinder (317) is located inside the connecting cylinder (316). The rotating cylinder (317) is rotatably connected to the connecting cylinder (316). A connecting channel (329) is machined inside the rotating cylinder (317). A first connecting hole (324) is machined on the top of the outer circumference of the rotating cylinder (317) and communicates with the connecting channel (329). The first connecting hole (324) communicates with the feed inlet (320). A second connecting hole (325) is machined on the side of the outer circumference of the rotating cylinder (317) and communicates with the connecting channel (329). The second connecting hole (325) communicates with the discharge outlet (321). The rotating cylinder (317) 7) A third connecting hole (326) is machined at the bottom of the outer circumference and communicates with the connecting channel (329). A pressing cylinder (309) is provided at the bottom of the rotating cylinder (317). The third connecting hole (326) communicates with the inlet end of the pressing cylinder (309). A piston rod (310) is slidably connected inside the pressing cylinder (309). A sliding block (319) is provided at the bottom of the piston rod (310) and is slidably connected to the arc surface of the arc plate (306). A second spring (311) is provided on the piston rod (310). One end of the second spring (311) is fixedly connected to the bottom of the pressing cylinder (309), and the other end of the second spring (311) is fixedly connected to the sliding block (319). The fourth support frame (5) is provided with a support cylinder (304), and the fourth support frame (5) is provided with a second motor (305) that drives the lead screw (314) to rotate. The lead screw (314) is threadedly connected to the sliding plate (315). The sliding plate (315) is provided with a second connecting rod (313) that slides vertically inside the support cylinder (304). The top of the second connecting rod (313) is provided with an abutting block (312) that abuts against the bottom of the arc plate (306). The abutting block (312) drives the arc plate (306) to swing in the arc sliding hole (301) by abutting against the bottom of the arc plate (306). The stirring mechanism is as follows: a second support plate (705) is provided above the opening of the mixing tank (6), a third motor (704) for driving the first rotating shaft (702) to rotate is provided on the second support plate (705), a fixed cylinder (703) is provided at the bottom of the second support plate (705) and is rotatably connected to the first rotating shaft (702), the first rotating shaft (702) is located inside the fixed cylinder (703), and stirring rods (701) for stirring and mixing the main ingredients and auxiliary ingredients in the mixing tank (6) are evenly arranged on the first rotating shaft (702) in the circumferential direction. Multiple stirring rods (701) are located inside the mixing tank (6) respectively. The automatic feeding mechanism is as follows: a contact plate (904) is provided on one side of the mixing tank (6), and vertical plates (902) located on both sides of the contact plate (904) are respectively provided on the working platform (10). A rack (903) is provided on one side of each vertical plate (902) on the mixing tank (6). A lower fixed pulley (909) is rotatably installed at the bottom of each vertical plate (902). A fourth motor for driving the lower fixed pulley (909) to rotate is provided on one of the vertical plates (902). 908), two lower fixed pulleys (909) are fixedly connected by a second connecting shaft (911), and an upper fixed pulley (905) is rotatably mounted on the top of each vertical plate (902). Each rope (906) is wound around the upper fixed pulley (905) and the lower fixed pulley (909) on the same side. One end of each rope (906) is fixedly connected to a fixed end (907). A second rotating shaft (916) is rotatably mounted between the two fixed ends (907). On each vertical plate (902) Each shaft (916) is provided with a vertical sliding hole (901) that is slidably connected to the second shaft (916) in the vertical direction. The second shaft (916) is provided with a snap-fit ​​plate (917) that is fixedly connected to the base (910). The base (910) is provided with gears (915) located on both sides of the snap-fit ​​plate (917) at both ends. Each gear (915) meshes with the corresponding rack (903) for transmission. The snap-fit ​​plate (917) abuts against the contact plate (904). The base (910) is provided with a fixed... A rod (914) is provided with a gripper (912) that slides horizontally on each fixed rod (914). One end of the gripper (912) is slidably connected to the base (910) in the horizontal direction. A third spring (913) is provided on each fixed rod (914). One end of each third spring (913) is fixedly connected to the gripper (912), and the other end of each third spring (913) is fixedly connected to the base (910). The two grippers (912) hold the main material dispensing cylinder (8). The bottom outlet of the mixing tank (6) is provided with a second discharge pipe (12) that is connected to it, and a valve (11) is provided on the second discharge pipe (12).

2. The automatic UV spot color ink dispensing device according to claim 1, characterized in that: Each auxiliary material dispensing cylinder (2) is slidably fitted with a dust cover (4) for covering the opening of the auxiliary material dispensing cylinder (2).

3. A dispensing process using the automatic dispensing device for UV spot color inks as described in claim 1, characterized in that, Includes the following steps: S1, the automatic feeding mechanism pours the main material batching cylinder (8) storing one main material into the batching mixing tank (6), and the automatic feeding mechanism pours the main material batching cylinder (8) storing another main material into the batching mixing tank (6); S2, different auxiliary materials are added to each auxiliary material dispensing cylinder (2). The output shaft of the first motor (303) drives the first connecting shaft (322) to rotate in both directions. The first connecting shaft (322) drives multiple rotating cylinders (317) and extrusion cylinders (309) to reciprocate through multiple hexagonal clamps (323). When the first connecting hole (324) on each rotating cylinder (317) rotates to connect with the feed inlet (320) of the connecting cylinder (316), the auxiliary materials in each auxiliary material dispensing cylinder (2) pass through the feed inlet (320) and the first connecting shaft (322) in sequence. Through hole (324), connecting channel (329), and third connecting hole (326) enter the extrusion cylinder (309). When the second connecting hole (325) on each rotating cylinder (317) rotates to connect with the discharge port (321) of the connecting cylinder (316), the sliding block (319) at the bottom of the piston rod (310) on each extrusion cylinder (309) moves to contact the arc surface of the arc plate (306), each second spring (311) is compressed, and each piston rod (310) sequentially passes the auxiliary material in the extrusion cylinder (309) through the rotating cylinder. (317), connecting channel (329), second connecting hole (325), discharge port (321), and first discharge pipe (318) enter the mixing tank (6). At the same time, the output shaft of the second motor (305) located at the bottom of the extrusion cylinder (309) drives the lead screw (314) to rotate. Each sliding disc (315) slides vertically on the lead screw (314). Each sliding disc (315) drives the contact block (312) to move vertically to contact the bottom of the arc plate (306) through the second connecting rod (313). The two connecting rods (313) slide vertically inside the support cylinder (304), each first connecting rod (307) rotates on the third support plate (302), and each arc plate (306) swings in the arc sliding hole (301). According to the different auxiliary material feed amount in each auxiliary material feeding cylinder (2), the auxiliary material feed amount in the extrusion cylinder (309) into the mixing tank (6) is controlled by controlling the height of the contact block (312), the swing amplitude of the arc plate (306), and the stroke of the piston rod (310) in the extrusion cylinder (309). S3, the stirring mechanism stirs and mixes the various main ingredients and auxiliary ingredients in the mixing tank (6) to prepare the ingredients.

4. The dispensing process of the automatic UV spot color ink dispensing device according to claim 3, characterized in that, The automatic feeding mechanism in step S1 pours the main ingredient batching cylinder (8) containing one main ingredient into the batching mixing tank (6) as follows: the output shaft of the fourth motor (908) drives one side of the lower fixed pulley (909) to rotate, and the lower fixed pulley (909) drives the other side of the lower fixed pulley (909) to rotate through the second connecting shaft (911). Each lower fixed pulley (909) drives the rope (906) to drive the upper fixed pulley (905) through the fixed pulley (905). Each rope (906) drives the second rotating shaft (916) through the fixed end (907) in the vertical sliding hole (901) of the vertical plate (902). Sliding vertically, the second rotating shaft (916) drives the base (910) to move vertically through the snap-fit ​​plate (917). During the movement, the snap-fit ​​plate (917) abuts against the contact plate (904). The second rotating shaft (916) drives the gears (915) on both sides to move to mesh with the rack (903). The gears (915) rotate sequentially through the second rotating shaft (916), the snap-fit ​​plate (917), and the base (910). The main material batching cylinder (8) held by the two grippers (912) on the base (910) tilts, and the main material in the main material batching cylinder (8) enters the batching and mixing tank (6).

5. The dispensing process of the automatic UV spot color ink dispensing device according to claim 3, characterized in that, The method by which the stirring mechanism in step S3 stirs and mixes the various main ingredients and auxiliary ingredients in the mixing tank (6) is as follows: the output shaft of the third motor (704) drives the first rotating shaft (702) to rotate in the fixed cylinder (703), and the first rotating shaft (702) drives multiple circumferential stirring rods (701) to rotate, thereby stirring and mixing the main ingredients and auxiliary ingredients in the mixing tank (6).

6. The dispensing process of the automatic UV spot color ink dispensing device according to claim 3, characterized in that, Each of the second motors (305) has a different rotational speed.

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