An automatic printing ink supply and viscosity control integrated device

Abstract

This invention discloses an integrated device for automatic ink supply and viscosity control, comprising a housing with a first conical toothed disc inside. The first conical toothed disc is connected to a second conical toothed disc above it via a magnetic coupler. The second conical toothed disc is connected to a drive motor via a first rotating shaft. The bottom of the first conical toothed disc is connected to several stirring shafts via a stirring mechanism. A bevel gear meshes between the first and second conical toothed discs. A second rotating shaft is located at the outer end of the bevel gear, and a second gear is located at the outer end of the second rotating shaft. A locking mechanism is provided between the second rotating shaft and the second gear. An annular toothed disc is sleeved on the first rotating shaft above the second conical toothed disc. The second gear meshes with the annular toothed disc via a transmission gear. An inlet pipe is provided on the housing, and a gate valve is provided on the inlet pipe. The annular toothed disc drives the gate valve to open and close via a transmission mechanism. This solution can achieve automatic ink dilution.

Description

Technical Field

[0001] This invention relates to the field of printing equipment technology, and specifically to an integrated device for automatic ink supply and viscosity control. Background Technology

[0002] Printing equipment is a mechanical device used to transfer graphic information from a printing plate to a substrate (such as paper, plastic, metal, etc.). Its core function is to achieve precise ink transfer through pressure, heat, or chemical action. Common printing equipment includes offset printing machines, gravure printing machines, flexographic printing machines, and screen printing machines.

[0003] Ink viscosity directly affects printing quality. Too high a viscosity will make ink transfer difficult and result in incomplete images and text, while too low a viscosity may cause ink diffusion and blurry color blocks. Ink needs to flow quickly on the substrate to form a uniform film layer. The equipment design (such as squeegee pressure and drying speed) needs to be matched with the ink flowability. Printing equipment needs to control the ink drying speed to avoid clogging due to excessively fast drying or sticking due to excessively slow drying.

[0004] When controlling the viscosity of ink in large ink storage containers that supply ink to multiple printing devices simultaneously, sensors are widely used in industry to monitor ink viscosity. Common technologies include rotational viscometers, which measure viscosity by measuring the torque of a rotor rotating in the ink; vibrational viscometers, which detect viscosity by utilizing changes in damped vibration frequency; and differential pressure viscometers, which calculate viscosity by measuring fluid pressure differences. However, all of these sensors require direct contact with the ink, and over time, the sensors are susceptible to ink contamination or even corrosion, affecting the detection results. Summary of the Invention

[0005] To address the aforementioned shortcomings of the prior art, the present invention provides an integrated device for automatic ink supply and viscosity control in printing, thereby solving the technical problems mentioned in the background section.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: An integrated device for automatic ink supply and viscosity control is provided, comprising a housing. The bottom of the housing is connected to several printing devices via several fixed pipes. A first conical toothed disc is disposed inside the housing. The first conical toothed disc is connected to a second conical toothed disc above it via a magnetic coupler. The second conical toothed disc is connected to a drive motor via a first rotating shaft. The bottom of the first conical toothed disc is connected to several stirring shafts via a stirring mechanism, driving the stirring shafts to rotate and rotate simultaneously. A bevel gear meshes between the first and second conical toothed discs. A second rotating shaft is disposed at the outer end of the bevel gear. A freely rotatable second gear is disposed at the outer end of the second rotating shaft. A locking mechanism is provided between the second rotating shaft and the second gear for transmission connection between the second rotating shaft and the second gear. A freely rotatable annular toothed disc is sleeved on the first rotating shaft above the second conical toothed disc. The second gear meshes with the annular toothed disc via a transmission gear. An inlet pipe is disposed on the housing, and a gate valve is disposed on the inlet pipe. The annular toothed disc drives the gate valve to open and close via a transmission mechanism.

[0007] Furthermore, the stirring mechanism includes a fixed frame, which is connected to the bottom of the first conical toothed disc via a third rotating shaft. Several fixed rods are spaced apart on the circumference of the fixed frame, and a first gear is provided at the outer end of each of the fixed rods. A partition ring plate is provided inside the housing, and an internal toothed ring is provided on the partition ring plate. Several first gears mesh with the internal toothed ring, and the upper ends of several stirring shafts are fixedly connected to several first gears respectively.

[0008] Furthermore, the radial dimension of the inner circle of the internal gear ring is larger than the radial dimension of the inner circle of the partition ring plate, and a number of balls for supporting the first gear and rolling contacting it are embedded in the circumferential direction of the upper surface of the partition ring plate near the inner circle.

[0009] Furthermore, a ring-shaped baffle is provided at the bottom of the fixing frame.

[0010] Furthermore, the locking mechanism includes a limiting ring disposed on the inner end of the second gear, an annular groove being provided on the outer end of the second rotating shaft, the limiting ring being rotatably disposed in the annular groove, and a plurality of triangular grooves being provided circumferentially on the outer wall of the limiting ring, with limiting posts being movably disposed in the triangular grooves, and the sidewalls of the limiting posts being connected to the sidewalls corresponding to the short sides of the triangular grooves via a first spring, and the sidewalls of the limiting posts slidingly contacting the outer arc wall of the annular groove and the sidewalls corresponding to the long sides of the triangular grooves respectively.

[0011] Furthermore, an L-shaped connecting rod is provided between the first rotating shaft and the second rotating shaft, and both ends of the L-shaped connecting rod are provided with collars. The two collars are respectively rotatably sleeved on the first rotating shaft and the second rotating shaft, and the transmission gear is provided on the L-shaped connecting rod.

[0012] Furthermore, the transmission mechanism includes a third gear, an external gear ring that meshes with the third gear is provided on the outer wall of the annular gear disk, a number of sliding frames are provided in the circumferential direction at the bottom of the third gear, and the length direction of each sliding frame is located in the radial direction of the third gear. A counterweight is slidably arranged in the sliding frame along its length direction, and the number of counterweights are all connected to the gate valve transmission via a fixed belt.

[0013] Furthermore, a fixed cylinder is provided in the middle of several sliding frames, and several sliding channels corresponding to several sliding frames are opened in the circumferential direction on the side wall of the fixed cylinder. Guide pulleys are provided on the inner and outer sides of the sliding channels, and the fixing belt passes through the sliding channels through the guide pulleys and extends vertically downward from the bottom of the fixed cylinder.

[0014] Furthermore, the gate valve includes a valve body disposed in the horizontal section of the inlet pipe, a vertical valve plate disposed in the valve body, a flow hole disposed on the vertical valve plate, and the gate valve is opened and closed by the lifting and lowering of the vertical valve plate, several fixing straps are connected to the upper end of the vertical valve plate, and a second spring is disposed between the lower end of the vertical valve plate and the valve body.

[0015] Furthermore, the radial dimension of the external gear ring is several times the radial dimension of the third gear.

[0016] The beneficial effects of this invention are as follows: 1. In this scheme, the drive motor drives several stirring shafts via a magnetic coupler. Due to the stirring resistance of the stirring shafts, a speed difference is generated between the input and output rotors of the magnetic coupler. Under the action of the speed difference, the first and second conical toothed discs drive the bevel gear to rotate slowly while moving in a circular motion. At this time, the second gear, which is moving in a circular motion, rotates under the action of the ring toothed disc and the transmission gear, and the direction of the second gear is the same as that of the bevel gear. The speed of the second gear is greater than that of the bevel gear, and the locking mechanism is not activated at this time. However, when the ink viscosity is too high, the resistance of the stirring shaft gradually increases, and the speed difference also gradually increases, thereby causing the speed of the bevel gear to gradually increase. When the speed of the bevel gear is higher than that of the second gear, the locking mechanism is triggered, causing the bevel gear to drive the second gear to rotate synchronously. The speed of the second gear increases, causing the second gear to drive the ring toothed disc to rotate through the transmission gear. The ring toothed disc drives the third gear to rotate, and drives the gate valve to open through the transmission mechanism, releasing the solvent through the liquid inlet pipe to promote ink dilution.

[0017] 2. The working principle of the locking mechanism in this scheme is as follows: When the rotational speed of the second gear is greater than that of the bevel gear, the outer arc wall of the annular groove rubs against the limiting post and drives the limiting post to compress the first spring, thereby causing the limiting post to gradually move towards a wider area of ​​the triangular groove, thus allowing the limiting ring and the second rotating shaft to rotate relative to each other; when the rotational speed of the bevel gear is higher than that of the second gear, the outer arc wall of the annular groove rubs against the limiting post and drives the limiting post to stretch the first spring, thereby causing the limiting post to gradually move towards a narrower area of ​​the triangular groove, thus increasing the friction between the limiting post and the outer arc wall of the annular groove, allowing the second rotating shaft to drive the limiting ring to rotate synchronously, thereby causing the bevel gear to drive the second gear to rotate synchronously.

[0018] 3. The stirring mechanism of this solution drives several first gears to make circular motion through the first conical toothed disc, and at the same time drives several first gears to rotate under the meshing action of the internal toothed ring, thereby driving several stirring shafts to rotate and move in a circular motion at the same time, so as to improve the stirring effect of ink dilution and avoid ink stratification or sedimentation.

[0019] 4. The transmission mechanism of this scheme uses the high-speed rotation of the third gear to cause the counterweight to pull the fixed belt under the action of centrifugal force, and open the gate valve to release solvent, thereby promoting ink dilution. The opening degree of the gate valve is related to the input speed of the transmission mechanism. That is, the higher the ink viscosity, the greater the speed difference between the first and second conical toothed discs, the faster the conical gear rotates, the faster the third gear rotates, and the greater the centrifugal force received by the counterweight, thus making the gate valve open to a greater extent, thereby realizing the automatic adjustment of ink dilution.

[0020] 5. This solution, through the ingenious design of the mechanical transmission structure, can directly respond to changes in ink viscosity without the need for sensors or other electronic components, thereby reducing operating costs and electrical failure rates. Furthermore, since the components do not come into direct contact with the ink, interference to the components is reduced and corrosion by the ink is avoided. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this solution.

[0022] Figure 2 This is a schematic diagram of the internal structure of the box.

[0023] Figure 3 This is a schematic diagram of the stirring mechanism.

[0024] Figure 4 This is a schematic diagram of the first structure of the locking mechanism.

[0025] Figure 5 This is a schematic diagram of the second structure of the locking mechanism.

[0026] Figure 6This is a flowchart illustrating the locking principle of the locking mechanism.

[0027] Figure 7 This is a schematic diagram of the first structure of the transmission mechanism.

[0028] Figure 8 This is a schematic diagram of the second structure of the transmission mechanism.

[0029] Figure 9 This is a schematic diagram of a gate valve.

[0030] 10. Box body; 11. Printing equipment; 12. Fixing pipe; 13. Dividing ring plate; 14. Stirring shaft; 15. Liquid inlet pipe; 20. Fixing frame; 21. First gear; 22. Internal gear ring; 23. Fixing rod; 24. Annular baffle; 30. First conical gear disk; 31. Second conical gear disk; 32. Bevel gear; 33. Magnetic coupler; 34. Second gear; 35. Annular gear disc; 36. External gear ring; 37. L-shaped connecting rod; 38. Limiting ring; 39. Limiting post; 310. First rotating shaft; 311. Second rotating shaft; 312. Transmission gear; 313. Annular groove; 314. Triangular groove; 315. First spring; 40. Third gear; 41. Fixed cylinder; 42. Sliding frame; 43. Counterweight; 44. Fixing belt; 45. Gate valve; 46. Sliding channel; 47. Guide pulley; 51. Valve body; 52. Vertical valve plate; 53. Flow hole; 54. Second spring. Detailed Implementation

[0031] The specific embodiments of the present invention are described below to enable those skilled in the art to understand the present invention. However, it should be understood that the present invention is not limited to the scope of the specific embodiments. For those skilled in the art, various changes are obvious as long as they are within the spirit and scope of the present invention as defined and determined by the appended claims. All inventions utilizing the concept of the present invention are protected.

[0032] Example 1 like Figures 1 to 9As shown, the integrated automatic ink supply and viscosity control device of this solution includes a housing 10. The bottom of the housing 10 is connected to several printing devices 11 via several fixed pipes 12. A first conical toothed disk 30 is installed inside the housing 10. The first conical toothed disk 30 is connected to a second conical toothed disk 31 above it via a magnetic coupler 33. The second conical toothed disk 31 is connected to a drive motor via a first rotating shaft 310. The bottom of the first conical toothed disk 30 is connected to several stirring shafts 14 via a stirring mechanism, driving the stirring shafts 14 to rotate and rotate simultaneously. The first conical toothed disk 30 and the second conical toothed disk 31 are meshed with a certain amount of material. A bevel gear 32 is provided with a second rotating shaft 311 at its outer end. A second rotating gear 34 that can rotate freely is provided at the outer end of the second rotating shaft 311. A locking mechanism for transmission connection between the second rotating shaft 311 and the second gear 34 is provided. A freely rotatable annular gear disk 35 is sleeved on a first rotating shaft 310 located above the second bevel gear disk 31. The second gear 34 meshes with the annular gear disk 35 through a transmission gear 312. An inlet pipe 15 is provided on the housing 10. A gate valve 45 is provided on the inlet pipe 15. The annular gear disk 35 drives the gate valve 45 to open and close through a transmission mechanism.

[0033] Specifically, the drive motor of this scheme drives several stirring shafts 14 through a magnetic coupler 33. Due to the stirring resistance of the stirring shaft 14, a speed difference is generated between the input rotor and the output rotor of the magnetic coupler 33. Under the action of the speed difference, the first conical toothed disk 30 and the second conical toothed disk 31 drive the bevel gear 32 to rotate slowly while making circular motion.

[0034] When the ink viscosity is normal, the second gear 34 rotates under the action of the ring gear 35 and the transmission gear 312, and the direction of rotation of the second gear 34 is the same as that of the bevel gear 32. The rotational speed of the second gear 34 is greater than that of the bevel gear 32, and the locking mechanism does not activate at this time. When the ink viscosity is too high, the resistance of the stirring shaft 14 gradually increases, and the speed difference also gradually increases, thereby causing the rotational speed of the bevel gear 32 to gradually increase. When the rotational speed of the bevel gear 32 is higher than that of the second gear 34, the locking mechanism is triggered, causing the bevel gear 32 to drive the second gear 34 to rotate synchronously. The increased rotational speed of the second gear 34 causes the second gear 34 to drive the ring gear 35 to rotate through the transmission gear 312. The ring gear 35 drives the third gear 40 to rotate, and drives the gate valve 45 to open through the transmission mechanism, releasing the solvent through the liquid inlet pipe 15 to promote ink dilution.

[0035] Example 2 like Figure 2 and Figure 3As shown, the stirring mechanism includes a fixed frame 20, which is connected to the bottom of the first conical gear disk 30 via a third rotating shaft. Four fixed rods 23 are spaced apart around the fixed frame 20, and a first gear 21 is provided at the outer end of each of the four fixed rods 23. A partition ring plate 13 is provided inside the housing 10, and an internal gear ring 22 is provided on the partition ring plate 13. The four first gears 21 mesh with the internal gear ring 22. The upper ends of the four stirring shafts 14 are fixedly connected to the four first gears 21 respectively. In this scheme, the stirring mechanism drives the four first gears 21 to make circular motion through the first conical gear disk 30, and at the same time, under the meshing action of the internal gear ring 22, it drives the four first gears 21 to rotate, thereby driving the four stirring shafts 14 to rotate and move in a circular motion at the same time, so as to improve the stirring effect of ink dilution and avoid ink stratification or sedimentation.

[0036] Specifically, the radial dimension of the inner circle of the internal gear ring 22 is larger than the radial dimension of the inner circle of the partition ring plate 13. The upper surface of the partition ring plate 13 near the inner circle is provided with a number of balls for supporting the first gear 21 and rolling contacting it, so as to prevent the first gear 21 from falling. The bottom of the fixing frame 20 is provided with an annular baffle 24, which to a certain extent prevents the ink below the partition ring plate 13 from splashing upward.

[0037] Example 3 like Figure 4 and Figure 5 As shown, the locking mechanism includes a limiting ring 38 disposed on the inner end of the second gear 34, and an annular groove 313 is provided on the outer end of the second rotating shaft 311. The limiting ring 38 is rotatably disposed in the annular groove 313. Two triangular grooves 314 are provided on the circumferential direction of the outer wall of the limiting ring 38, and the two triangular grooves 314 are rotationally symmetrical. A limiting post 39 is movably disposed in the triangular groove 314, and the side wall of the limiting post 39 is connected to the side wall corresponding to the short side of the triangular groove 314 through a first spring 315. The side wall of the limiting post 39 slides in contact with the outer arc wall of the annular groove 313 and the side wall corresponding to the long side of the triangular groove 314, respectively.

[0038] Specifically, an L-shaped connecting rod 37 is provided between the first rotating shaft 310 and the second rotating shaft 311, and both ends of the L-shaped connecting rod 37 are provided with collars. The two collars are respectively rotatably sleeved on the first rotating shaft 310 and the second rotating shaft 311. The transmission gear 312 is provided on the L-shaped connecting rod 37. This solution uses the L-shaped connecting rod 37 to limit the bevel gear 32, the second rotating shaft 311, the second gear 34, and the transmission gear 312.

[0039] like Figure 6As shown, the working principle of the locking mechanism in this scheme is as follows: When the rotational speed of the second gear 34 is greater than that of the bevel gear 32, the outer arc wall of the annular groove 313 rubs against the limiting post 39 and drives the limiting post 39 to compress the first spring 315, thereby causing the limiting post 39 to gradually move towards a wider area of ​​the triangular groove 314, thus allowing the limiting ring 38 and the second rotating shaft 311 to rotate relative to each other; while when the rotational speed of the bevel gear 32 is higher than that of the second gear 34, the outer arc wall of the annular groove 313 rubs against the limiting post 39 and drives the limiting post 39 to stretch the first spring 315, thereby causing the limiting post 39 to gradually move towards a narrower area of ​​the triangular groove 314, thereby increasing the friction between the limiting post 39 and the outer arc wall of the annular groove 313, allowing the second rotating shaft 311 to drive the limiting ring 38 to rotate synchronously, thereby causing the bevel gear 32 to drive the second gear 34 to rotate synchronously.

[0040] Example 4 like Figures 7 to 9 As shown, the transmission mechanism includes a third gear 40. An external gear ring 36 that meshes with the third gear 40 is provided on the outer side wall of the annular gear disk 35. Three sliding frames 42 are provided circumferentially at the bottom of the third gear 40, and the length direction of each sliding frame 42 is located in the radial direction of the third gear 40. A counterweight 43 is slidably arranged inside the sliding frame 42 along its length direction. The three counterweights 43 are all connected to the gate valve 45 through a fixed belt 44.

[0041] like Figure 9 As shown, the gate valve 45 includes a valve body 51 disposed in the horizontal section of the inlet pipe 15, a vertical valve plate 52 disposed inside the valve body 51, a flow hole 53 disposed on the vertical valve plate 52, and the gate valve 45 is opened and closed by the lifting and lowering of the vertical valve plate 52. A second spring 54 is disposed between the lower end of the vertical valve plate 52 and the valve body 51.

[0042] A fixed cylinder 41 is provided in the middle of the three sliding frames 42. Three sliding channels 46 corresponding to the three sliding frames 42 are opened on the circumferential side wall of the fixed cylinder 41. Guide pulleys 47 are provided on the inner and outer sides of the sliding channels 46. Three fixing belts 44 pass through the sliding channels 46 through the guide pulleys 47 and extend vertically downward from the bottom of the fixed cylinder 41 and converge at a point. Then, they are connected to the upper end of the vertical valve plate 52 through the fixing belts 44.

[0043] In particular, the radial dimension of the external gear ring 36 is several times the radial dimension of the third gear 40, so that the ring gear disk 35 can drive the third gear 40 to rotate at high speed.

[0044] In this scheme, the transmission mechanism uses the high-speed rotation of the third gear 40 to cause the counterweight 43 to pull the fixed belt 44 under the action of centrifugal force, and open the gate valve 45 to release solvent, thereby promoting ink dilution. The opening degree of the gate valve 45 is related to the input speed of the transmission mechanism. That is, the higher the ink viscosity, the greater the speed difference between the first conical toothed disc 30 and the second conical toothed disc 31, the faster the speed of the conical gear 32, the faster the speed of the third gear 40, and the greater the centrifugal force received by the counterweight 43, thereby making the gate valve 45 open to a greater extent, thus realizing the automatic adjustment of ink dilution.

[0045] In summary, this solution, through the ingenious design of the mechanical transmission structure, can directly respond to changes in ink viscosity without the need for sensors or other electronic components, thereby reducing operating costs and electrical failure rates. Furthermore, since the components do not come into direct contact with the ink, interference to the components is reduced and corrosion by the ink is avoided.

Claims

1. An integrated device for automatic ink supply and viscosity control in printing, characterized in that, The device includes a housing, the bottom of which is connected to several printing devices via several fixed pipes. A first conical toothed disc is installed inside the housing. The first conical toothed disc is connected to a second conical toothed disc above it via a magnetic coupler. The second conical toothed disc is connected to a drive motor via a first rotating shaft. The bottom of the first conical toothed disc is connected to several stirring shafts via a stirring mechanism, which drives the stirring shafts to rotate and rotate simultaneously. A bevel gear meshes between the first conical toothed disk and the second conical toothed disk. A second rotating shaft is provided at the outer end of the bevel gear. A second gear that can rotate freely is provided at the outer end of the second rotating shaft. A locking mechanism for transmission connection between the second rotating shaft and the second gear is provided between the second rotating shaft and the second gear. The locking mechanism includes a limiting ring disposed on the inner end of the second gear, an annular groove being provided on the outer end of the second rotating shaft, the limiting ring being rotatably disposed in the annular groove, and a plurality of triangular grooves being provided on the circumferential direction of the outer wall of the limiting ring, a limiting post being movably disposed in the triangular groove, and the side wall of the limiting post being connected to the side wall corresponding to the short side of the triangular groove through a first spring, and the side wall of the limiting post being in sliding contact with the outer arc wall of the annular groove and the side wall corresponding to the long side of the triangular groove respectively; An L-shaped connecting rod is provided between the first rotating shaft and the second rotating shaft, and a collar is provided at both ends of the L-shaped connecting rod. The two collars are respectively rotatably sleeved on the first rotating shaft and the second rotating shaft, and the transmission gear is provided on the L-shaped connecting rod. A freely rotatable annular gear is fitted on the first rotating shaft above the second conical gear. The second gear meshes with the annular gear through a transmission gear. An inlet pipe is provided on the housing, and a gate valve is provided on the inlet pipe. The annular gear drives the gate valve to open and close through a transmission mechanism.

2. The integrated automatic ink supply and viscosity control device for printing ink according to claim 1, characterized in that, The stirring mechanism includes a fixed frame, which is connected to the bottom of the first conical toothed disc via a third rotating shaft. Several fixed rods are spaced apart on the circumference of the fixed frame, and a first gear is provided at the outer end of each of the fixed rods. A partition ring plate is provided inside the housing, and an internal toothed ring is provided on the partition ring plate. Several first gears mesh with the internal toothed ring, and the upper ends of several stirring shafts are fixedly connected to several first gears respectively.

3. The integrated automatic ink supply and viscosity control device for printing ink according to claim 2, characterized in that, The radial dimension of the inner circle of the internal gear ring is greater than the radial dimension of the inner circle of the separator ring plate. The upper surface of the separator ring plate near the inner circle is provided with a plurality of balls for supporting the first gear and making rolling contact with it.

4. The integrated automatic ink supply and viscosity control device for printing ink according to claim 2, characterized in that, The bottom of the fixing frame is provided with an annular baffle.

5. The integrated device for automatic ink supply and viscosity control according to claim 1, characterized in that, The transmission mechanism includes a third gear. An external gear ring that meshes with the third gear is provided on the outer wall of the annular gear disk. Several sliding frames are provided circumferentially at the bottom of the third gear, and the length direction of each sliding frame is located in the radial direction of the third gear. A counterweight is slidably arranged in the sliding frame along its length direction. Several counterweights are connected to the gate valve through a fixing belt.

6. The integrated automatic ink supply and viscosity control device according to claim 5, characterized in that, A fixed cylinder is provided in the middle of the sliding frame. The side wall of the fixed cylinder is provided with a plurality of sliding channels corresponding to the sliding frames. Guide pulleys are provided on the inner and outer sides of the sliding channels. The fixing belt passes through the sliding channel through the guide pulleys and extends vertically downward from the bottom of the fixed cylinder.

7. The integrated automatic ink supply and viscosity control device according to claim 6, characterized in that, The gate valve includes a valve body disposed in the horizontal section of the inlet pipe, a vertical valve plate disposed in the valve body, a flow hole disposed on the vertical valve plate, and the gate valve is opened and closed by the lifting and lowering of the vertical valve plate, a plurality of fixing straps are connected to the upper end of the vertical valve plate, and a second spring is disposed between the lower end of the vertical valve plate and the valve body.

8. The integrated automatic ink supply and viscosity control device for printing ink according to claim 5, characterized in that, The radial dimension of the external gear ring is several times the radial dimension of the third gear.

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