A stirring device for preparing and processing environment-friendly water-based printing ink

Abstract

The application relates to the field of ink production and discloses an environment-friendly water-based printing ink preparation and processing stirring equipment, which comprises a rack, a stirring tank, a feeding component, a motor and a discharging ring pipe are installed on the rack, a stirring mechanism is arranged in the stirring tank, the stirring mechanism comprises a stirring shaft coaxially installed in the stirring tank, a lead screw is installed in the stirring shaft, a sliding seat is installed outside the lead screw, a sleeve shaft is installed outside the stirring shaft, the sleeve shaft is magnetically coupled with the sliding seat, the outer circumferential surface of the sleeve shaft extends a convex bracket, stirring blades are hingedly arranged on the convex bracket, two stirring blades are arranged along the axial line of the sleeve shaft, initially, the stirring blades are parallel to the sleeve shaft, and the hinging shafts of the two stirring blades are close to each other, a push seat is slidably installed on the convex bracket along the radial direction of the sleeve shaft, the push seat is located on the side of the stirring blade facing the axial line of the sleeve shaft, and the push seat is in contact with the stirring blade, and a spring is arranged on the side of the push seat facing the axial line of the sleeve shaft.

Description

Technical Field

[0001] This invention relates to the field of ink production, specifically to the stirring process in ink production, and specifically to a stirring device for the preparation and processing of environmentally friendly water-based printing inks. Background Technology

[0002] Environmentally friendly water-based inks refer to non-organic solvent-based inks, possessing environmentally friendly properties. Their production process includes a mixing step, where mixing technology ensures the various components of the ink are evenly mixed. In existing technologies, the common mixing technique involves rotating stirring blades. Some methods simply utilize the rotation of the stirring blades to achieve uniform ink mixing, while others simultaneously drive the stirring blades to rotate and move them up and down. However, both methods have some shortcomings: 1. In existing stirring blade technology, the stirring blades generally only rotate at a constant speed in one direction. Even with the addition of up-and-down movement, the mixing effect is relatively poor, requiring a longer mixing time. 1. Stirring time is needed to achieve uniform ink mixing, meaning the stirring effect and efficiency need improvement; 2. Magnetic ink is a type of water-based ink, and its components include magnetizable materials. In current technology, it is common to use motor technology to drive the stirring blades to rotate. When the motor is powered on, it generates an electromagnetic field, which affects the mixing of magnetic ink; 3. After the ink is stirred, it needs to be output. The ink has a certain viscosity and will adhere to the stirring tank, stirring blades, and stirring shaft in various dead corners, resulting in incomplete discharge, waste, and the need to clean the entire stirring equipment regularly, which is quite troublesome.

[0003] Based on the above, the present invention proposes a stirring device for the preparation and processing of environmentally friendly water-based printing inks. Summary of the Invention

[0004] To address the problems mentioned in the background above, the present invention provides a stirring device for the preparation and processing of environmentally friendly water-based printing inks.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows.

[0006] A mixing device for preparing and processing environmentally friendly water-based printing inks includes a frame, on which a mixing tank, a feeding component, a motor, and a discharge ring pipe are mounted. A connecting shaft extends radially from the outer surface of the mixing tank and is connected to the frame. A mixing mechanism is provided inside the mixing tank.

[0007] The stirring mechanism includes a stirring shaft that is hollow and coaxially installed in the stirring tank. A lead screw is installed inside the stirring shaft, and a slide is installed outside the lead screw. The slide and the stirring shaft are in sliding fit. A sleeve is installed outside the stirring shaft. The sleeve is magnetically coupled to the slide. A stirring blade unit is provided outside the sleeve.

[0008] The outer circular surface of the sleeve shaft extends with a protrusion. The stirring blade unit includes a stirring blade hinged on the protrusion, and the hinge axis formed by the hinge of the stirring blade and the protrusion is perpendicular to the axis of the sleeve shaft. Two stirring blades are arranged along the axis of the sleeve shaft. Initially, the length direction of the stirring blade is parallel to the axis of the sleeve shaft, and the hinge axes of the two stirring blades are close to each other. A pusher is slidably installed on the protrusion along the radial direction of the sleeve shaft. The pusher is located on the side of the stirring blade facing the axis of the sleeve shaft and is in contact with the stirring blade. A spring is provided on the side of the pusher facing the axis of the sleeve shaft.

[0009] Furthermore, the stirring blade includes a main stirring blade hinged to the protrusion, the main stirring blade is hollow inside and fitted with a secondary stirring blade, and a spring is provided between the secondary stirring blade and the main stirring blade to drive the secondary stirring blade to retract into the main stirring blade.

[0010] Furthermore, the tank lid is equipped with a pneumatic motor 1 that is powered by the stirring shaft and a pneumatic motor 2 that is powered by the lead screw.

[0011] Furthermore, there are two connecting shafts, namely connecting shaft one and connecting shaft two, with connecting shaft one being connected to the motor for power.

[0012] Furthermore, the second connecting shaft is hollow, and the feeding component includes a collar sleeved on the outside of the second connecting shaft. The outer circular surface of the second connecting shaft has a connecting hole communicating with the inner cavity of the collar. The outer circular surface of the collar is provided with a feeding pipe. A plug is sleeved inside the second connecting shaft, and the plug is moved by a telescopic rod installed on the frame.

[0013] Furthermore, the mixing tank has openings at both ends and is equipped with a tank cover. The tank cover is hollow inside and has a connecting nozzle extending from its outer surface. One end of the discharge ring pipe is open and is rotatably fitted with a ring cover. The connecting nozzle is connected to the ring cover, and the discharge nozzle extends from the outer surface of the discharge ring pipe.

[0014] The inside of the tank lid is hollow and a discharge hole is provided at one end facing the mixing tank. A one-way plug is slidably installed inside the tank lid along the axis of the mixing tank. A spring is provided between the one-way plug and the tank lid. Initially, the one-way plug blocks the discharge hole.

[0015] Furthermore, the frame is equipped with a reversing mechanism for driving the pneumatic motor to change its rotation direction after the sleeve shaft contacts the can lid.

[0016] Furthermore, the reversing mechanism includes two sets of reversing components, each of which includes a trigger pump and a connecting valve;

[0017] The trigger pump includes a pump housing, a piston is installed inside the pump housing, a piston rod extends from the end of the piston, and a connector one and a connector two are provided on the outer surface of the pump housing on the side of the piston away from the piston rod. The connector one is connected to the pneumatic motor two through an air pipe. The piston rods in the two sets of reversing components are arranged facing each other and a support one is provided between them.

[0018] The connecting valve includes a valve body installed on connector two, a valve core installed inside the valve body, a valve hole one and a valve hole two provided on the valve core, a connector three provided on the valve body, connector three in the two sets of reversing components are connected by a main pipe, the main pipe is connected to the air outlet end of the rotary joint installed on the connecting shaft by a branch pipe, a valve stem extends from the end of the valve core, a linkage groove is provided on the valve stem, a protrusion extends from the bracket one, and the end of the protrusion is located in the linkage groove;

[0019] When connector 2 and connector 3 are connected through valve hole 1, the reversing component switches to the air intake state. When connector 2 and connector 3 are disconnected and connector 2 is connected to the inner cavity of the valve body through valve hole 2, the reversing component switches to the air outlet state. An air outlet hole is opened on the outer surface of the valve body. The states of the two sets of reversing components are opposite.

[0020] Furthermore, a trigger groove is provided on the bracket, and the distance between the two groove walls along the piston rod axis increases from the bottom of the groove to the opening of the groove.

[0021] A bracket 2 is provided between the pump casings of the two sets of reversing components. A connecting seat is hinged on the bracket 2. A trigger block is slidably installed on the side of the connecting seat facing the trigger groove, and a spring 4 is provided between the trigger block and the connecting seat. The sliding direction of the trigger block is perpendicular to the side of the connecting seat facing the trigger groove. The trigger block is triangular prism in shape and one edge is inserted into the trigger groove.

[0022] Compared with the prior art, the beneficial effects of this invention are as follows:

[0023] I. In this solution, the ink raw materials are stirred by the combined action of the rotating mixing tank and the stirring mechanism. The stirring action consists of the moving action of the stirring blades, the rotating action of the stirring blades, and the deflection action of the stirring blades around the hinge axis.

[0024] On the one hand, the three sub-actions working together can improve the stirring effect on the ink raw materials, thereby increasing the stirring efficiency and enabling the ink to be uniformly stirred in a shorter time.

[0025] On the other hand, the deflection of the stirring blades around the hinge axis is achieved by the change in the rotational speed of the stirring shaft. When the rotational speed of the stirring shaft decreases, the angle between the two stirring blades increases; when the rotational speed of the stirring shaft increases, the angle between the two stirring blades decreases. The advantage is that, under the traction of the rotational and moving movements of the stirring blades, the ink raw material will form a unidirectional rotating vortex. The rotational speed of the vortex is related to the rotational speed of the stirring blades. When the stirring shaft speed changes and causes the stirring blades to deflect around the hinge axis, the rotational speed of the stirring blades following the rotational speed of the stirring shaft also changes. When the rotational speed of the stirring shaft decreases, the rotational speed of the stirring blades also decreases. Compared to the ink vortex, the rotational speed of the stirring blades is lower, and the stirring blades act as an obstacle. The ink vortex will actively collide with the stirring blades, and the collision is beneficial to improving the stirring effect. Similarly, when the rotational speed of the stirring shaft increases, the rotational speed of the stirring blades also increases. Compared to the ink vortex, the rotational speed of the stirring blades is higher, and the stirring blades will actively strike the ink raw material. The striking is also beneficial to improving the stirring effect.

[0026] In summary, the combined action of the moving part of the stirring blade, the rotating part of the stirring blade, and the deflection part of the stirring blade around the hinge axis in this solution can improve the stirring effect on the ink raw materials. At the same time, the driving method of the deflection part of the stirring blade will further enhance the stirring effect of the deflection part of the stirring blade on the ink raw materials. The two work together to significantly improve the stirring effect of the ink raw materials and significantly shorten the stirring time.

[0027] Second, in this solution, after the mixing is completed, the mixing tank rotates at high speed. Under the action of centrifugal force, the one-way plug moves and the discharge hole opens. Under the action of centrifugal force, the ink enters the tank cover through the discharge hole and then is output outward through the connecting nozzle and the discharge ring pipe. This centrifugal output method of ink can make the ink in the mixing tank completely leave without residue.

[0028] Third, in this scheme, the stirring action is driven by pneumatic motor technology, and the rotation direction change of the second pneumatic motor is also achieved by a mechanical reversing mechanism, so no electromagnetic field will be generated that would affect the stirring of the magnetic ink. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0030] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0031] Figure 3 This is a cross-sectional view of the present invention;

[0032] Figure 4 This is a cross-sectional view of the mixing tank and the feeding component;

[0033] Figure 5 This is a cross-sectional view of the can lid;

[0034] Figure 6 This is a schematic diagram of the stirring mechanism;

[0035] Figure 7 This is a schematic diagram of the stirring assembly;

[0036] Figure 8 This is a cross-sectional view of the stirring assembly;

[0037] Figure 9 for Figure 8 Enlarged view of A in the image;

[0038] Figure 10 This is a schematic diagram of the reversing mechanism;

[0039] Figure 11 This is a cross-sectional view of the reversing mechanism;

[0040] Figure 12 This is a schematic diagram of the triggering component.

[0041] The labels in the attached diagram are:

[0042] 100. Frame; 200. Mixing tank; 201. Tank cover; 202. Connecting nozzle; 203. Connecting shaft; 204. Sliding sleeve; 205. Sliding rod; 206. One-way plug; 207. Spring 1; 208. Pneumatic motor; 209. Lead screw; 210. Mixing shaft; 211. Slide seat; 212. Mixing assembly; 2121. Sleeve shaft; 2122. Main mixing blade; 2123. Secondary mixing blade; 2124. Spring 2; 2125. Push seat; 2126. Spring 3; 300. Feeding component; 301. Collar; 302. Feeding pipe 303. Sealing plug; 304. Telescopic rod; 400. Motor; 500. Discharge ring pipe; 501. Ring cover; 502. Discharge nozzle; 600. Reversing mechanism; 601. Pump housing; 602. Piston; 603. Piston rod; 604. Bracket one; 605. Valve housing; 606. Valve core; 607. Valve hole one; 608. Valve stem; 609. Main pipe; 610. Branch pipe; 611. Air pipe; 612. Bracket two; 613. Trigger groove; 614. Connecting seat; 615. Trigger block; 616. Spring four; 700. Connecting assembly. Detailed Implementation

[0043] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structure, features and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0044] Example 1

[0045] Reference Figures 1-9An environmentally friendly water-based printing ink preparation and processing mixing device includes a frame 100, on which a mixing tank 200, a feeding component 300, a motor 400, and a discharge ring pipe 500 are installed. The mixing tank 200 is equipped with a mixing mechanism to provide space for ink mixing. The feeding component 300 is used to input ink raw materials into the mixing tank 200. The mixing mechanism is used to mix the ink raw materials in the mixing tank 200. During mixing, the motor 400 drives the mixing tank 200 to rotate at a relatively low speed to improve the mixing effect and thus increase the mixing efficiency. After mixing, the motor 400 drives the mixing tank 200 to rotate at high speed, centrifugally drawing the mixed ink towards the discharge ring pipe 500 for output. This centrifugal output method ensures that the ink in the mixing tank 200 is completely discharged.

[0046] 1. Mixing tank 200:

[0047] Reference Figure 4 A connecting shaft 203 extends radially from the outer surface of the mixing tank 200. The connecting shaft 203 is connected to the frame 100. There are two connecting shafts 203, namely connecting shaft one and connecting shaft two. Connecting shaft one is powered by a motor 400. The motor 400 drives connecting shaft one to rotate, which in turn drives the mixing tank 200 to rotate. This rotation is called revolution. Connecting shaft two is a hollow shaft and is used for communication between the mixing tank 200 and the feeding component 300.

[0048] 2. Feeding component 300:

[0049] Reference Figure 4 The feeding component 300 includes a collar 301 sleeved on the outside of the connecting shaft 2. The outer circular surface of the connecting shaft 2 is provided with a connecting hole communicating with the inner cavity of the collar 301. The outer circular surface of the collar 301 is provided with a feeding pipe 302. The ink raw material is driven to flow by peristaltic pump and other technologies, and enters the mixing tank 200 after passing through the feeding pipe 302, collar 301, connecting hole, and connecting shaft 2 in sequence.

[0050] The inner sleeve of the connecting shaft 2 is equipped with a plug 303. The plug 303 is driven by the telescopic rod 304 and moves within the connecting shaft 2. The telescopic rod 304 can be an electric telescopic rod or a hydraulic rod, which will not be elaborated here. After the ink raw material is fed, the telescopic rod 304 drives the plug 303 to seal the inner cavity of the connecting shaft 2.

[0051] 3. Discharge ring pipe 500:

[0052] Reference Figure 2The mixing tank 200 has openings at both ends and each is provided with a tank cover 201. The tank cover 201 is hollow inside and has a connecting nozzle 202 extending from its outer surface. The discharge ring pipe 500 has an opening at one end and is rotatably installed with a ring cover 501. The connecting nozzle 202 is connected to the ring cover 501. The discharge ring pipe 500 has a discharge nozzle 502 extending from its outer surface.

[0053] Reference Figure 5 The interior of the lid 201 is hollow and a discharge hole is provided at one end facing the mixing tank 200. A one-way plug 206 is slidably installed inside the lid 201 along the axis of the mixing tank 200. Specifically, a sliding sleeve 204 parallel to the axis of the mixing tank 200 is provided inside the lid 201. A sliding rod 205 is sleeved inside the sliding sleeve 204. The one-way plug 206 is slidably installed in the discharge hole and connected to the sliding rod 205. A spring 207 is provided between the one-way plug 206 and the lid 201. Initially, the one-way plug 206 blocks the discharge hole. Preferably, there are several one-way plugs 206 and several discharge holes are provided accordingly. The connecting nozzle 202 communicates with the inner cavity of the lid 201.

[0054] During the ink mixing process, the rotation speed of the mixing tank 200 driven by the motor 400 is relatively slow, and the centrifugal force is insufficient to overcome the elastic force of the spring 207 to move the one-way plug 206, and the sealing of the discharge hole remains unchanged.

[0055] After the ink is mixed, the motor 400 drives the mixing tank 200 to rotate at high speed. Under the action of centrifugal force, it is sufficient to overcome the elastic force of the spring 207, causing the one-way plug 206 to move and the spring 207 to be compressed. Under the action of centrifugal force, the ink in the mixing tank 200 enters the tank cover 201 through the discharge hole, and then enters the discharge ring pipe 500 through the connecting nozzle 202. This centrifugal ink output method can completely remove the ink in the mixing tank 200 without any residue.

[0056] 4. Stirring mechanism:

[0057] Reference Figure 6 The stirring mechanism includes a hollow shaft 210 coaxially mounted inside the stirring tank 200. A lead screw 209 is coaxially mounted inside the stirring shaft 210. Two pneumatic motors 208 are mounted on the tank cover 201, namely pneumatic motor one and pneumatic motor two. The former is powered by the stirring shaft 210, and the latter is powered by the lead screw 209. A slide 211 is mounted on the outside of the lead screw 209. The slide 211 also forms a sliding fit with the stirring shaft 210. Therefore, when the lead screw 209 rotates, it drives the slide 211 to move.

[0058] A stirring assembly 212 is mounted on the outside of the stirring shaft 210.

[0059] Specifically, refer to Figure 7The stirring assembly 212 includes a sleeve 2121 installed outside the stirring shaft 210. The sleeve 2121 is magnetically coupled to the slide 211. Furthermore, a magnet 1 is provided on the sleeve 2121 and a magnet 2 is provided on the slide 211. The magnetic poles of the magnet 1 and the magnet 2 are opposite. Based on the principle of magnetic adsorption, the slide 211 moves together with the stirring assembly 212.

[0060] Reference Figure 8 and Figure 9 The outer circular surface of the sleeve shaft 2121 is provided with stirring blade units, and several groups of stirring blade units are arranged in an array along the circumferential direction of the sleeve shaft 2121.

[0061] Specifically, the outer circular surface of the sleeve shaft 2121 extends with a protrusion. The stirring blade unit includes a stirring blade hinged to the protrusion, and the hinge axis formed by the hinge of the stirring blade and the protrusion is perpendicular to the axis of the sleeve shaft 2121. The stirring blade includes a main stirring blade 2122 hinged to the protrusion. The main stirring blade 2122 is hollow inside and is fitted with a secondary stirring blade 2123. A second spring 2124 is provided between the secondary stirring blade 2123 and the main stirring blade 2122. The elastic force of the second spring 2124 is used to drive the secondary stirring blade 2123 to retract into the main stirring blade 2122. In addition, a limit ring is provided at the free end of the main stirring blade 2122 to prevent the secondary stirring blade 2123 from detaching from the main stirring blade 2122.

[0062] Two stirring blades are arranged along the axis of the sleeve shaft 2121 in each stirring blade unit. Initially, the length direction of the stirring blades is parallel to the axis of the sleeve shaft 2121 and the hinge axes of the two stirring blades are close to each other.

[0063] A pusher 2125 is also slidably mounted on the protrusion along the radial direction of the sleeve shaft 2121. The pusher 2125 is located on the side of the stirring blade facing the axis of the sleeve shaft 2121 and is in contact with the stirring blade. A spring 2126 is provided on the side of the pusher 2125 facing the axis of the sleeve shaft 2121.

[0064] Working principle of Example 1:

[0065] Step 1: Ink raw materials are fed into the mixing tank 200 through the feeding component 300;

[0066] Step 2: Both motor 400 and the two pneumatic motors 208 are started, including:

[0067] When the pneumatic motor starts, it drives the stirring shaft 210 to rotate. The rotation of the stirring shaft 210 causes the stirring assembly 212 to rotate together. During this process, since the mass of the stirring blade is significantly greater than the mass of the pusher 2125, the centrifugal force on the stirring blade is greater than the centrifugal force on the pusher 2125. The stirring blade will deflect away from the sleeve shaft 2121 around the hinge shaft. That is, the included angle between the two stirring blades in the same set of stirring blades becomes smaller. At the same time, the stirring auxiliary blade 2123 extends out from the stirring main blade 2122 under the action of centrifugal force. Based on this, the rotation speed of the stirring shaft 210 driven by the pneumatic motor changes periodically. Specifically, the stirring shaft 210 first increases its rotation speed and then decreases its rotation speed, and so on. During this process, the stirring blade deflects back and forth around the hinge shaft.

[0068] The pneumatic motor drives the lead screw 209 to rotate, thereby driving the stirring assembly 212 to reciprocate along the axis of the stirring shaft 210.

[0069] The motor 400 drives the mixing tank 200 to rotate;

[0070] In step two, the ink raw materials are stirred through the combined action of the rotating mixing tank 200 and the stirring mechanism. This stirring action consists of the movement of the stirring blades, the rotation of the stirring blades, and the deflection of the stirring blades around the hinge axis. This is significant because, firstly, the coordination of these three actions improves the stirring effect on the ink raw materials, thereby increasing stirring efficiency and allowing the ink to be uniformly stirred in a shorter time. Secondly, the deflection of the stirring blades around the hinge axis is achieved by changing the rotational speed of the stirring shaft 210. A decrease in the rotational speed of the stirring shaft 210 increases the angle between the two stirring blades, while an increase in the rotational speed decreases the angle. This benefits the ink raw materials during stirring... Driven by the rotational movement of the blades and the movement of the stirring blades, a unidirectional rotating vortex is formed. The vortex speed is related to the rotational speed of the stirring blades. When the speed of the stirring shaft 210 changes, causing the stirring blades to deflect around the hinge axis, the speed of the stirring blades rotating with the stirring shaft 210 also changes. When the speed of the stirring shaft 210 decreases, the speed of the stirring blades also decreases. Compared to the ink vortex, the speed of the stirring blades is lower, and the stirring blades act as an obstacle. The ink vortex will actively collide with the stirring blades, and the collision is beneficial to improving the stirring effect. Similarly, when the speed of the stirring shaft 210 increases, the speed of the stirring blades also increases. Compared to the ink vortex, the speed of the stirring blades is higher, and the stirring blades will actively strike the ink raw materials. The striking is also beneficial to improving the stirring effect.

[0071] In summary, the combination of the moving action, rotating action, and deflection action of the stirring blade around the hinge axis in this solution can improve the stirring effect on the ink raw materials. At the same time, the driving method of the deflection action of the stirring blade will increase the stirring effect of the deflection action on the ink raw materials. The two work together to significantly improve the stirring effect of the ink raw materials and significantly shorten the stirring time.

[0072] Step 3: When the ink mixing ends, the motor 400 and the two pneumatic motors 208 remain running, but the output speed of the motor 400 increases, causing the mixing tank 200 to rotate at high speed. Under the action of centrifugal force, the spring force of the spring-207 is overcome, causing the one-way plug 206 to move. The spring-207 is compressed, and the ink in the mixing tank 200, under the action of centrifugal force, enters the tank cover 201 through the discharge hole, and then enters the discharge ring pipe 500 through the connecting nozzle 202. This centrifugal ink output method can completely remove the ink in the mixing tank 200 without residue.

[0073] Furthermore, since the motor 400 is far from the mixing tank 200, the motor 400 can also be replaced with a pneumatic motor to drive the mixing tank 200 to rotate. In addition, the stirring action of the stirring component 212 is driven by the pneumatic motor, so there is no problem of generating an electromagnetic field when energized. It should be noted that although the slide 211 and the stirring component 212 are magnetically coupled, the stirring action of the stirring component 212 is continuously present around the magnetic field. Therefore, the stirring and mixing of the magnetic components in the ink can be avoided from being affected by the magnetic field. Unlike the stirring shaft 210 and the lead screw 209, their vicinity cannot be continuously stirred and are therefore easily affected by the electromagnetic field. Therefore, pneumatic motor technology is used instead of electric motor technology.

[0074] Example 2

[0075] In Embodiment 1, the stirring shaft 210 and the lead screw 209 are driven to rotate by a pneumatic motor. However, the stirring shaft 210 only needs to rotate in one direction, while the direction of rotation of the lead screw 209 needs to change back and forth to ensure that the stirring assembly 212 can move back and forth. However, unlike electric motor technology, the number of rotations of a pneumatic motor cannot be well monitored. Therefore, it is easy for the stirring assembly 212 to move to contact the lid 201, but the direction of rotation of the lead screw 209 driven by the pneumatic motor 212 has not changed. This can easily lead to damage to the pneumatic motor 212 or the stirring assembly 212 and the lid 201. To solve this problem, Embodiment 2 is proposed.

[0076] A reversing mechanism 600 is provided on the frame 100. The reversing mechanism 600 is used to drive the pneumatic motor 2 to change its rotation direction after the stirring assembly 212 contacts the tank cover 201.

[0077] Reference Figure 10 and Figure 11 The reversing mechanism 600 includes two sets of reversing components.

[0078] The reversing components include a trigger pump and a connecting valve.

[0079] The trigger pump includes a pump housing 601, a piston 602 is installed inside the pump housing 601, a piston rod 603 extends from the end of the piston 602, and a connector is provided on the outer surface of the pump housing 601. The connector is located on the side of the piston 602 away from the piston rod 603. There are two connectors, namely connector one and connector two. Connector one is connected to pneumatic motor two through an air pipe 611.

[0080] The piston rods 603 in the two sets of reversing components are arranged facing each other and a bracket 604 is provided between them.

[0081] The connecting valve includes a valve housing 605 disposed on connector two, a valve core 606 installed inside the valve housing 605, a valve hole 607 and a valve hole 607 disposed on the valve core 606, a connector three disposed on the valve housing 605, and connector three of the two sets of reversing components are connected by a main pipe 609, the main pipe 609 is connected to the air outlet end of the rotary joint mounted on connecting shaft one by a branch pipe 610, and the air inlet end of the rotary joint is connected to an air source, such as an air compressor.

[0082] When connector 2 and connector 3 are connected through valve hole 1 607, the reversing component switches to the air intake state. When connector 2 and connector 3 are disconnected and connector 2 is connected to the inner cavity of valve housing 605 through valve hole 2, the reversing component switches to the air outlet state. An air outlet hole is provided on the outer surface of valve housing 605.

[0083] The two sets of reversing components are in opposite states.

[0084] A valve stem 608 extends from the end of the valve core 606. A linkage groove is provided on the valve stem 608. A protrusion extends from the bracket 604, and the end of the protrusion is located in the linkage groove.

[0085] Reference Figure 12 The reversing mechanism 600 also includes a triggering component.

[0086] The triggering component includes a second bracket 612 disposed between the pump housings 601 in the two sets of reversing components. A triggering groove 613 is provided on the first bracket 604. The distance between the two groove walls of the triggering groove 613 along the axis of the piston rod 603 increases from the bottom of the groove to the opening of the groove.

[0087] The triggering component also includes a connecting seat 614 hinged to the bracket 612. A trigger block 615 is slidably mounted on the side of the connecting seat 614 facing the trigger groove 613, and a spring 616 is provided between the trigger block 615 and the connecting seat 614. The sliding direction of the trigger block 615 is perpendicular to the side of the connecting seat 614 facing the trigger groove 613. The trigger block 615 is in the shape of a triangular prism and one edge is inserted into the trigger groove 613.

[0088] Working principle of Example 2:

[0089] Initially, refer to Figure 11 The left reversing component is in the air outlet state, and the right reversing component is in the air inlet state. The compressed gas supplied by the air source enters the pneumatic motor 2 through the right reversing component and is discharged through the left reversing component. At this time, the pneumatic motor 2 is rotating in the forward direction.

[0090] When the stirring assembly 212 contacts the can lid 201, the pneumatic motor can no longer rotate the lead screw 209, and the compressed gas cannot escape. The compressed gas accumulates in the right ventilation component, causing the piston 602 and piston rod 603 to move away from the connector. When the sliding direction of the trigger block 615 is perpendicular to the piston rod 603, the critical point is reached. After that, as long as the piston rod 603 moves slightly, it will move rapidly under the elastic force of the spring 616. When the critical point is reached, the protrusion contacts the groove wall of the linkage groove, and the piston rod 603 moves along with the valve rod 608, thereby switching the state of the reversing component. At this time, the compressed gas supplied by the air source enters the pneumatic motor 2 through the left ventilation component and is discharged through the right ventilation component. At this time, the pneumatic motor 2 is in reverse.

[0091] In this way, the pneumatic motor 2 is driven by the reversing mechanism 600 to complete the rotation direction change, and no electricity is required, so no electromagnetic field is generated.

[0092] Example 3

[0093] Preferably, the mixing tank 200 will vibrate when rotating at high speed, therefore, referring to Figure 2 A connecting assembly 700 is provided on the frame 100. The connecting assembly 700 includes a shock-absorbing support 1 that is slidably mounted on the frame 100 along direction 1. A spring 5 is provided on each side of the shock-absorbing support 1. A shock-absorbing support 2 is slidably mounted on the shock-absorbing support 1 along direction 2. A spring 6 is provided on each side of the shock-absorbing support 2. Directions 1 and 2 are perpendicular to each other. Directions 1 or 2 are perpendicular to the axis of the connecting shaft 203. The connecting shaft 203 is connected to the shock-absorbing support 2. The connecting shaft 1 is connected to the motor 400 through a universal joint. The significance of the connecting assembly 700 is that it plays a role in shock absorption.

[0094] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A stirring device for preparing and processing environmentally friendly water-based printing inks, comprising a frame (100), characterized in that: The frame (100) is equipped with a mixing tank (200), a feeding component (300), a motor (400) and a discharge ring pipe (500). A connecting shaft (203) extends radially from the outer surface of the mixing tank (200). The connecting shaft (203) is connected to the frame (100). A mixing mechanism is provided inside the mixing tank (200). The stirring mechanism includes a stirring shaft (210) that is hollow and coaxially installed in a stirring tank (200). A lead screw (209) is installed inside the stirring shaft (210). A slide (211) is installed outside the lead screw (209). The slide (211) and the stirring shaft (210) are in sliding fit. A sleeve shaft (2121) is installed outside the stirring shaft (210). The sleeve shaft (2121) is magnetically coupled to the slide (211). A stirring blade unit is provided outside the sleeve shaft (2121). The outer circular surface of the sleeve shaft (2121) extends with a protrusion. The stirring blade unit includes a stirring blade hinged on the protrusion, and the hinge axis formed by the hinge of the stirring blade and the protrusion is perpendicular to the axis of the sleeve shaft (2121). Two stirring blades are arranged along the axis of the sleeve shaft (2121). Initially, the length direction of the stirring blade is parallel to the axis of the sleeve shaft (2121), and the hinge axes of the two stirring blades are close to each other. A push seat (2125) is slidably installed on the protrusion along the radial direction of the sleeve shaft (2121). The push seat (2125) is located on the side of the stirring blade facing the axis of the sleeve shaft (2121), and the push seat (2125) is in contact with the stirring blade. A spring three (2126) is provided on the side of the push seat (2125) facing the axis of the sleeve shaft (2121). The lid (201) is equipped with a pneumatic motor 1 that is powered by the stirring shaft (210) and a pneumatic motor 2 that is powered by the lead screw (209); The frame (100) is provided with a reversing mechanism (600) for driving the pneumatic motor II to change the direction of rotation after the sleeve shaft (2121) contacts the can cover (201). The reversing mechanism (600) includes two sets of reversing components, each including a trigger pump and a connecting valve; The trigger pump includes a pump housing (601), a piston (602) is installed inside the pump housing (601), a piston rod (603) extends from the end of the piston (602), and a connector one and a connector two are provided on the outer surface of the pump housing (601) on the side of the piston (602) away from the piston rod (603). The connector one is connected to the pneumatic motor two through an air pipe (611). The piston rods (603) in the two sets of reversing components are arranged facing each other and a bracket one (604) is provided between them. The connecting valve includes a valve housing (605) installed on the second connector, a valve core (606) installed inside the valve housing (605), a valve hole (607) and a valve hole (2) provided on the valve core (606), a third connector provided on the valve housing (605), the third connectors in the two sets of reversing components are connected by a main pipe (609), the main pipe (609) is connected to the air outlet end of the rotary joint installed on the connecting shaft (203) by a branch pipe (610), a valve stem (608) extends from the end of the valve core (606), a linkage groove is provided on the valve stem (608), a protrusion extends from the first bracket (604), and the end of the protrusion is located in the linkage groove; When connector 2 and connector 3 are connected through valve hole 1 (607), the reversing component switches to the air intake state. When connector 2 and connector 3 are disconnected and connector 2 is connected to the inner cavity of valve housing (605) through valve hole 2, the reversing component switches to the air outlet state. An air outlet hole is opened on the outer surface of valve housing (605). The states of the two sets of reversing components are opposite. A trigger groove (613) is provided on the bracket (604). The distance between the two groove walls of the trigger groove (613) along the axis of the piston rod (603) increases from the bottom of the groove to the opening of the groove. A bracket (612) is provided between the two sets of pump housings (601). A connecting seat (614) is hinged on the bracket (612). A trigger block (615) is slidably installed on the side of the connecting seat (614) facing the trigger groove (613). A spring (616) is provided between the trigger block (615) and the connecting seat (614). The sliding direction of the trigger block (615) is perpendicular to the side of the connecting seat (614) facing the trigger groove (613). The trigger block (615) is in the shape of a triangular prism and one edge is inserted into the trigger groove (613).

2. The stirring equipment for preparing and processing environmentally friendly water-based printing inks according to claim 1, characterized in that: The stirring blade includes a main stirring blade (2122) hinged to the protrusion. The main stirring blade (2122) is hollow inside and is fitted with a secondary stirring blade (2123). A second spring (2124) is provided between the secondary stirring blade (2123) and the main stirring blade (2122) to drive the secondary stirring blade (2123) to retract into the main stirring blade (2122).

3. The stirring equipment for preparing and processing environmentally friendly water-based printing inks according to claim 2, characterized in that: There are two connecting shafts (203), namely connecting shaft one and connecting shaft two. Connecting shaft one is connected to the motor (400) for power connection.

4. The stirring equipment for preparing and processing environmentally friendly water-based printing inks according to claim 3, characterized in that: The second connecting shaft is hollow. The feeding component (300) includes a collar (301) sleeved on the outside of the second connecting shaft. The outer circular surface of the second connecting shaft has a connecting hole that communicates with the inner cavity of the collar (301). The outer circular surface of the collar (301) is provided with a feeding pipe (302). A plug (303) is sleeved inside the second connecting shaft. The plug (303) is driven to move by a telescopic rod (304) installed on the frame (100).

5. The stirring equipment for preparing and processing environmentally friendly water-based printing inks according to claim 3, characterized in that: The mixing tank (200) has openings at both ends and is provided with a tank cover (201). A connecting nozzle (202) extends from the outer surface of the tank cover (201). One end of the discharge ring pipe (500) is open and is rotatably fitted with a ring cover (501). The connecting nozzle (202) is connected to the ring cover (501). A discharge nozzle (502) extends from the outer surface of the discharge ring pipe (500). The inside of the lid (201) is hollow and a discharge hole is provided at one end facing the mixing tank (200). A one-way plug (206) is slidably installed inside the lid (201) along the axis of the mixing tank (200). A spring (207) is provided between the one-way plug (206) and the lid (201). Initially, the one-way plug (206) blocks the discharge hole.

Images