Viscosity detection device and method applied to package printing ink

Abstract

The invention belongs to the technical field of viscosity detection, and particularly relates to a viscosity detection device and method applied to packaging printing ink. Comprising a device table, a detection instrument and an ink injector, the detector is mounted at the top of the device table; an ink distributing roller; the ink distributing roller is mounted in the opening of the detection instrument; the uniform ink coating device is arranged on the detection instrument; the uniform ink coating device comprises a double-acting square block; the double-acting square block is positioned above the ink distributing roller; an auxiliary square groove; the two auxiliary square grooves are arranged in the detection instrument and are symmetrically distributed by taking an opening of the detection instrument as a symmetry axis; an opposite position control unit; the opposite position control unit is arranged on the double-acting square block; the ink injector is used for applying ink to the ink distributing roller; the coating on the surface of the ink distributing roller can be uniformly distributed through the uniform ink coating device, the situation that the detection result of the device on the ink is affected by the inconsistent thickness of the coating is avoided, the detection effect of the device on the ink is improved, and the detection precision of the device on the ink is further improved.

Description

Technical Field

[0001] This invention belongs to the field of viscosity testing technology, specifically a viscosity testing device and method for packaging and printing inks. Background Technology

[0002] Printing ink is a key material in the printing industry. Through the printing process, patterns and text can be accurately transferred to the surface of the substrate. It is widely used in printing scenarios on metal substrates such as metal packaging, metal signs, metal crafts, and metal electronic product casings. In order to ensure printing quality, improve production efficiency, and ensure that the performance of finished products meets the standards, the viscosity of printing ink needs to be tested.

[0003] Existing testing devices mostly use ink viscosity meters for testing. However, during operation, staff still need to manually apply the ink to be tested onto the surface of the ink roller using an ink injector. Manual application can easily lead to uneven ink distribution and inconsistent coating thickness, which can affect the testing accuracy and reduce the testing effect and precision of the device. Summary of the Invention

[0004] In view of the above situation and to overcome the defects of the prior art, the present invention provides a viscosity testing device and method for packaging printing inks, which effectively solves the problems in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a viscosity testing device for packaging printing inks, comprising a device platform, a testing instrument, and an ink dispenser; the testing instrument is mounted on the top of the device platform; Ink distribution roller; The ink distribution roller is installed inside the opening of the testing instrument; A uniform ink coating device is mounted on a testing instrument; the uniform ink coating device is used to uniformly coat the printing ink to be tested onto the ink coating roller; the uniform ink coating device includes a repeating block; the repeating block is located above the ink coating roller; Auxiliary square grooves; two auxiliary square grooves are disposed inside the detection instrument and are symmetrically distributed with the opening of the detection instrument as the axis of symmetry. A counter-positioning control unit; the counter-positioning control unit is disposed on a repeating block; the counter-positioning control unit is used to load and unload an ink injector onto the repeating block; the ink injector is used to apply ink to an ink distribution roller; the counter-positioning control unit includes a loading and unloading block; the loading and unloading block is mounted on the repeating block; A flip-up positioning component is disposed within an auxiliary square groove; the flip-up positioning component is used to control the position of the ink-spreading roller; the flip-up positioning component includes a drive shaft mounted on a testing instrument; one end of the drive shaft is located within the auxiliary square groove, and this end is also connected to an active bevel gear; the other end of the drive shaft is connected to an active pulley.

[0006] Preferably, it includes a drive motor, which is installed at the bottom of the auxiliary square groove; A rotating shaft is connected to the testing instrument; one end of the rotating shaft extends into the auxiliary square groove and is connected to the output end of the drive motor; the other end of the rotating shaft is located at the top of the testing instrument and is also connected to a rotating disk. The rotating column is mounted on the edge of the rotating disk on the side away from the platform.

[0007] Preferably, it includes a rotating base; the rotating base is fixedly connected to the top of the testing instrument; Driven sliding columns; two drive sliding columns are connected through the rotating base on the side near the repeating block; the drive sliding columns and the rotating base are in sliding engagement; A rotating torque block is located at the top of the rotating disk; the two driving slides are connected together to the side of the rotating torque block; A rotating torque groove is provided on the side of the rotating torque block near the rotating disk; the rotating column is located in the rotating torque groove, and the two are in sliding fit.

[0008] Preferably, it includes a T-shaped base connected to the top of the device platform; two positioning shafts are mounted on the T-shaped base; the two positioning shafts are respectively located at two auxiliary square grooves; The driven pulley is connected to one end of the positioning shaft; A one-way gear is installed at the other end of the positioning shaft; the one-way gear has a one-way circular groove with the same size as the positioning shaft. A transmission belt, one end of which is connected to a driving pulley and the other end of which is connected to a driven pulley; the transmission belt slides in conjunction with the driving pulley and the driven pulley.

[0009] Preferably, it includes unidirectional inclined grooves; a plurality of the unidirectional inclined grooves are disposed within a unidirectional circular groove; the inclined surfaces on the plurality of unidirectional circular grooves all face the same direction; The limiting slide is located on the outer wall of the positioning shaft; the number of limiting slides is the same as that of the one-way inclined slide. The limiting slide plate fits into the limiting slide groove, and the two slide together. A limiting spring is located within a limiting groove; one end of the limiting spring is fixedly connected to a limiting slide plate, and the other end is fixedly connected to the limiting groove. A one-way inclined block is installed on the side of the limiting slide away from the limiting spring; the initial position of the one-way inclined block is located in the one-way inclined groove, and the inclined surfaces of the two are in contact.

[0010] Preferably, it includes a U-shaped square base; the U-shaped square base is installed on the side of the rotating block near the repeating block; the opening of the U-shaped square base is away from the rotating block; An directional cylinder is fixedly connected inside a U-shaped square base; the directional cylinder is connected through the moving block, and the two are slidably engaged. A directional spring is sleeved on a directional cylinder; one end of the directional spring is fixedly connected to a U-shaped square base, and the other end is fixedly connected to a repeating block; an extension wheel is installed on the repeating block; a directional T-post is installed on the repeating block, and directional racks are connected to both sides of the directional T-post, with two directional racks and two one-way gears corresponding one-to-one; when one set of one-way gears is in meshing connection with the directional rack, the one-way gear in the other set is located at the movement path of its corresponding directional rack.

[0011] Preferably, it includes an active rotating shaft located inside an auxiliary square groove; one end of the active rotating shaft passes through the inner wall of the auxiliary square groove and is connected to the ink distribution roller, and the other end is connected to an active gear; A driven shaft is connected to the inner wall of an auxiliary square groove; a driven gear is mounted on the driven shaft; the driven gear meshes with the driving gear; a driven bevel gear is mounted on the driven shaft; the driven bevel gear meshes with the driving bevel gear.

[0012] Preferably, it includes a displacement base, which is installed on the side of the loading / unloading block away from the repeating block; A dual-control lead screw, which is connected to the displacement base; A control motor is mounted on a displacement base; the control motor is connected to a double-control lead screw; two displacement blocks are symmetrically threaded onto the double-control lead screw; A displacement slide column is installed on the loading and unloading block; the displacement slide column is connected through the displacement circular block, and the two are slidably engaged; a guide cylinder is connected through the displacement circular block; the guide cylinder is slidably engaged with the displacement circular block; one end of the guide cylinder is connected to a guide limiting plate, and the other end is connected to a locking clamping block, the inner wall of the locking clamping block is provided with a rubber buffer pad, and the side wall of the ink dispenser is located at the movement path of the rubber buffer pad; a guide spring is sleeved on the guide cylinder, one end of which is fixedly connected to the guide limiting plate, and the other end is fixedly connected to the displacement circular block.

[0013] Preferably, it includes a wavy long block, which is fixedly connected to the top of the testing instrument; several semi-circular blocks on the wavy long block are arranged at equal intervals, with the sidewalls of the semi-circular blocks facing the top of the device platform; both ends of the wavy long block extend to two auxiliary square grooves; when the repeating square block moves, it drives the extension wheel to move along the wavy long block, and makes the extension wheel continuously contact several semi-circular blocks on the wavy long block; there is a concave area between two semi-circular blocks, and the initial position of the extension wheel is located in the concave area between two semi-circular blocks.

[0014] This invention also provides a method for detecting the viscosity of packaging printing inks, comprising the following steps: Step 1: Operate the opposing control unit to install the ink dispenser onto the loading / unloading block; Step 2: Activate the uniform ink coating device to ensure that the ink dispenser uniformly operates on the ink coating roller and that the ink coating on it is evenly distributed. Step 3: With the help of the flip-shifting component, the ink roller is flipped slightly to apply ink at different positions on the ink roller.

[0015] As can be seen from the above, the viscosity detection device for packaging printing inks provided by the present invention has the effect of avoiding the impact of uneven coating distribution on the accuracy of detection results. This avoids the need for operators to manually apply the ink to the surface of the ink distribution roller using an ink injector, reducing the workload of operators and the detection efficiency of the device. Simultaneously, the device can drive the ink injector to evenly apply the ink to the surface of the ink distribution roller, ensuring a uniform coating distribution. This avoids uneven coating distribution leading to inconsistent thickness, which would affect the detection accuracy of the ink. Therefore, the detection effect of the device on ink is improved, and the detection accuracy is further enhanced, reducing the limitations of the device in use. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0017] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the rotating torque block structure of the present invention; Figure 3 This is a cross-sectional view of the auxiliary square groove of the present invention; Figure 4 This is a schematic diagram of the extended wheel structure of the present invention; Figure 5 This is a cross-sectional view of the one-way gear of the present invention; Figure 6 This is a schematic diagram of the directional rack structure of the present invention; Figure 7 This is a cross-sectional view of the rotating disk of the present invention; Figure 8 This is a schematic diagram of the locking clamping block structure of the present invention; Figure 9 This is a sectional view of the unidirectional inclined block of the present invention; Figure 10 This is a schematic diagram of the T-shaped base structure of the present invention; Figure 11 This is a schematic diagram of the displacement circular block structure of the present invention; In the diagram: 1. Device platform; 2. Testing instrument; 3. Ink dispenser; 4. Ink distribution roller; 5. Reciprocating block; 6. Auxiliary square groove; 7. Loading / unloading block; 8. Drive shaft; 9. Active bevel gear; 10. Active pulley; 11. Drive motor; 12. Rotating shaft; 13. Rotating disc; 14. Rotating column; 15. Rotating base; 16. Drive slide column; 17. Rotating torque block; 18. Rotating torque groove; 19. T-shaped base; 20. Positioning shaft; 21. Driven pulley; 22. One-way gear; 23. One-way circular groove; 24. Transmission belt; 25. One-way inclined groove; 26. Limiting slide. 27. Groove; 28. Limiting slide plate; 29. ​​Limiting spring; 30. One-way inclined block; 31. U-shaped square seat; 32. Directional cylinder; 33. Directional spring; 34. Extension wheel; 35. Directional T-post; 36. Directional rack; 37. Driving shaft; 38. Driven shaft; 39. Driven gear; 40. Driven bevel gear; 41. Displacement base; 42. Double control screw; 43. Control motor; 44. Displacement block; 45. Displacement slide column; 46. Guide cylinder; 47. Locking clamp; 48. Rubber buffer pad; 49. Guide spring; 50. Wave-shaped long block. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0019] Implementation examples, by Figures 1 to 11The present invention includes a device platform 1, a testing instrument 2, and an ink injector 3; the testing instrument 2 is mounted on the top of the device platform 1; an ink distribution roller 4 is mounted inside the opening of the testing instrument 2; a uniform ink coating device is disposed on the testing instrument 2; the uniform ink coating device is used to uniformly coat the printing ink to be tested onto the ink distribution roller 4; the uniform ink coating device includes a repeating block 5; the repeating block 5 is located above the ink distribution roller 4; auxiliary square grooves 6 are disposed inside the testing instrument 2 and symmetrically distributed with the opening of the testing instrument 2 as the axis of symmetry; a counter-positioning unit is disposed on the repeating block 5; the counter-positioning unit is used to mount and dismount the ink injector 3 onto the repeating block 5; the ink injector 3 is used to coat the ink distribution roller 4 with ink; and a flip-up positioning assembly is disposed on the repeating block 5. The auxiliary square groove 6 is located within the instrument 2. A flip-up positioning assembly controls the position of the ink-spreading roller 4. A drive motor 11 is installed at the bottom of the auxiliary square groove 6. A rotating shaft 12 is connected to the testing instrument 2. One end of the rotating shaft 12 extends into the auxiliary square groove 6 and is connected to the output end of the drive motor 11. The other end of the rotating shaft 12 is located at the top of the testing instrument 2 and is also connected to a rotating disk 13. A rotating column 14 is installed on the edge of the rotating disk 13 away from the device platform 1. A rotating base 15 is fixedly connected to the top of the testing instrument 2. Two drive columns 16 are connected through the rotating base 15 near the rotating block 5. The drive columns 16 and the rotating base 15 are in sliding engagement. A rotating rectangular block 17 is located on the rotating disk. The top of the disk 13; two driving sliding columns 16 are connected to the side of the rotating torque block 17; a rotating torque groove 18 is provided on the side of the rotating torque block 17 near the rotating disk 13; a rotating column 14 is located in the rotating torque groove 18, and the two are slidably engaged; a U-shaped square seat 30; the U-shaped square seat 30 is installed on the side of the rotating torque block 17 near the repeating square block 5; the opening of the U-shaped square seat 30 is away from the rotating torque block 17; a directional cylinder 31 is fixedly connected to the U-shaped square seat 30; the directional cylinder 31 is connected through the repeating square block 5, and the two are slidably engaged; a directional spring 32 is sleeved on the directional cylinder 31; one end of the directional spring 32 is fixedly connected to the U-shaped square seat 30, and the other end is fixedly connected to the repeating square block 5; an extension wheel 33 is installed on the repeating square block 5; A directional T-post 34 is installed on the moving block 5. A directional rack 35 is connected to both sides of the directional T-post 34. The two directional racks 35 correspond one-to-one with the two one-way gears 22. When one set of one-way gears 22 is in meshing with the directional rack 35, the one-way gear 22 in the other set is located at the moving path of its corresponding directional rack 35. A wave-shaped long block 50 is fixedly connected to the top of the detection instrument 2. Several semi-circular blocks on the wave-shaped long block 50 are arranged at equal intervals, and the sidewalls of the semi-circular blocks face the top of the device platform 1. Both ends of the wave-shaped long block 50 extend to two auxiliary square grooves 6. When the moving block 5 moves, it drives the extension wheel 33 to move along the wave-shaped long block 50, and makes the extension wheel 33 continuously contact the several semi-circular blocks on the wave-shaped long block 50.The space between the two semicircular blocks is concave, and the initial position of the extended wheel 33 is located in the concave space between the two semicircular blocks; Start the drive motor 11, so that its output end drives the rotating disk 13 to rotate through the rotating shaft 12. This causes the rotating column 14 on it to move back and forth in the rotating torque groove 18. This causes the rotating torque block 17 on it to move back and forth at the rotating base 15 through the drive slide 16. This causes the rotating torque block 17 to drive the U-shaped square seat 30 on it to move back and forth, which in turn causes the U-shaped square seat 30 to move back and forth between the two ends of the wavy long block 50. When the U-shaped square seat 30 moves, it drives the reciprocating square block 5 on it to move, so that the extension wheel 33 on it continuously contacts several semicircular blocks on the wavy long block 50. When the extension wheel 33 contacts the semicircular part on the wavy long block 50, it applies downward pressure to the extension wheel 33, causing the... The repeating block 5 reciprocates at the directional cylinder 31 within the U-shaped base 30, causing the directional spring 32 to be in a buffered state. This drives the loading and unloading block 7 on the repeating block 5 to reciprocate. The ink injector 3 is mounted on the loading and unloading block 7, which causes the ink injector 3 to move downwards to contact the side wall of the ink distribution roller 4. When the ink injector 3 contacts the ink distribution roller 4, it indicates that the extension wheel 33 has contacted the lowest point of the semicircle on the wavy long block 50. At this point, the extension wheel 33 gradually stops contacting the semicircle on the wavy long block 50, and the downward pressure on the repeating block 5 gradually decreases. This causes the directional spring 32, which is in a buffered state, to gradually return to its original position, and drives the extension wheel 33 to return to its original position, thus allowing the extension wheel to move. The circular wheel 33 remains in contact with the wavy long block 50, causing the reciprocating block 5 to reset and drive the ink dispenser 3 to reset and move, thus preventing it from contacting the ink distribution roller 4. Since the wavy long block 50 has several semicircular blocks, the ink dispenser 3 moves back and forth up and down, continuously applying ink to the ink distribution roller 4. The semicircular blocks are evenly spaced, ensuring that the reciprocating downward movement of the ink dispenser 3 is regular, even, and has the same period, preventing sudden changes in displacement. The drive motor 11 also maintains a stable rotation speed for the rotating disk 13, ensuring that the ink dispenser 3 moves at a uniform speed during horizontal movement and uniformly during vertical movement. This allows the ink dispenser 3 to evenly apply ink to the ink distribution roller 4, resulting in a uniform coating on the ink distribution roller 4. The uniform printing process improves the accuracy of the testing instrument 2 when detecting the viscosity of printing ink, avoiding the impact of uneven coating distribution on the accuracy of the test results. This also eliminates the need for manual application of the ink to be tested onto the surface of the ink distribution roller 4 using the ink injector 3, reducing the workload of the operator and the testing efficiency of the device. Simultaneously, the device drives the ink injector 3 to uniformly apply the ink to the surface of the ink distribution roller 4, ensuring a uniform coating distribution and preventing uneven thickness that could affect the accuracy of ink detection. This improves the device's ink detection performance and further enhances its accuracy, reducing limitations in its use.

[0020] The opposing control unit of this embodiment includes a loading / unloading block 7; the loading / unloading block 7 is mounted on the repeating block 5; a displacement base 41 is mounted on the side of the loading / unloading block 7 away from the repeating block 5; a double control screw 42 is connected to the displacement base 41; a control motor 43 is mounted on the displacement base 41; the control motor 43 is connected to the double control screw 42; two displacement blocks 44 are symmetrically threaded onto the double control screw 42; and a displacement slide 45 is mounted on the loading / unloading block 7; the displacement slide 45 is connected through to... The displacement block 44 is slidably connected to the displacement block 44; a guide cylinder 46 is slidably connected to the displacement block 44; a guide limit plate is connected to one end of the guide cylinder 46 and a locking clamp 47 is connected to the other end; a rubber buffer pad 48 is provided on the inner wall of the locking clamp 47, and the side wall of the ink dispenser 3 is located at the moving path of the rubber buffer pad 48; a guide spring 49 is sleeved on the guide cylinder 46, one end of which is fixedly connected to the guide limit plate and the other end is fixedly connected to the displacement block 44; When the device needs to test the viscosity of printing ink, the test ink is prepared in advance and placed into the ink dispenser 3. The ink dispenser 3 is then moved up and down repeatedly by the uniform ink coating device to evenly coat the ink roller 4. When the ink dispenser 3 is needed, it is installed on the loading / unloading block 7. By placing the ink dispenser 3 on the loading / unloading block 7, the control motor 43 is started, causing its output end to drive the double-control screw 42 to rotate. Since the threads at both ends of the double-control screw 42 are opposite, the ink can be evenly coated onto the roller 4. This causes the threaded displacement block 44 to move, reaching its upper limit on the displacement slide 45, thus limiting the relative movement of the two displacement blocks 44. Under the action of the guide cylinder 46 and the guide spring 49, the displacement block 44 can drive the locking clamp 47 to move closer to and contact the side wall of the ink dispenser 3, ensuring that both sides of the ink dispenser 3 are in contact with the locking clamp 47. This clamps the ink dispenser 3 onto the loading / unloading block 7, completing the installation operation of the ink dispenser 3. Simultaneously, the rubber buffer pad 48 enhances the locking mechanism. The friction between the clamping block 47 and the ink dispenser 3 prevents the ink dispenser 3 from dislodging during clamping. Simultaneously, the buffering force provided by the rubber buffer pad 48 and the guide spring 49 reduces the impact force received by the ink dispenser 3 during use, improving its stability and protecting it from excessive impact, thus extending its service life. Notably, after the locking clamping block 47 has clamped the ink dispenser 3, continuing to rotate the double-control screw 42 causes the displacement block 44 to continue moving. Since both sides of the ink dispenser 3 are in contact with the locking clamping block 47, preventing further movement, the displacement block 44 is limited at the guide cylinder 46. This puts the guide spring 49 in a buffered state, strengthening the contact strength and friction between the locking clamping block 47 and the ink dispenser 3, and controlling the clamping force to prevent damage from excessive force. This further reduces the limitations of the device during use and improves its performance. When it is necessary to disassemble the ink injector 3, simply reverse the double control screw 42 to move the locking clamp 47 away from the ink injector 3, so that the two are no longer in contact. This releases the limiting setting on the ink injector 3, allowing the ink injector 3 to be disassembled onto the loading and unloading block 7. This makes the installation and disassembly of the ink injector 3 convenient and quick, without the need for any tools. This avoids the inconvenience of installation and disassembly affecting the detection effect of the device, thus reducing the limitations of the device in use. At the same time, it makes the ink injector 3 easy to disassemble, install, and maintain, and facilitates the detection of the viscosity of different types of printing inks. This improves the efficiency of the device in detecting ink viscosity and ensures the stability of the ink injector 3 in use.

[0021] The flip-and-change positioning assembly of this embodiment includes a drive shaft 8, which is mounted on the detection instrument 2; one end of the drive shaft 8 is located in the auxiliary square groove 6, and this end is also connected to an active bevel gear 9; the other end of the drive shaft 8 is connected to an active pulley 10; a T-shaped base 19 is connected to the top of the device platform 1; two positioning shafts 20 are mounted on the T-shaped base 19; the two positioning shafts 20 are respectively located in the two auxiliary square grooves 6; a driven pulley 21 is connected to one end of the positioning shaft 20; unidirectional A gear 22 is mounted on the other end of the positioning shaft 20; the one-way gear 22 has a one-way circular groove 23, which is the same size as the positioning shaft 20; a transmission belt 24 is connected at one end to the driving pulley 10 and at the other end to the driven pulley 21; the transmission belt 24 slides in contact with the driving pulley 10 and the driven pulley 21; a one-way inclined groove 25; several one-way inclined grooves 25 are arranged in the one-way circular groove 23; the inclined surfaces on the several one-way circular grooves 23 all face the same direction; a limiting groove 26. It is located on the outer wall of the positioning shaft 20; the number of limiting slide grooves 26 is the same as that of the one-way inclined grooves 25; the limiting slide plate 27 is fitted into the limiting slide groove 26, and the two slide together; the limiting spring 28 is located in the limiting slide groove 26; one end of the limiting spring 28 is fixedly connected to the limiting slide plate 27, and the other end is fixedly connected to the limiting slide groove 26; the one-way inclined block 29 is installed on the side of the limiting slide plate 27 away from the limiting spring 28; the initial position of the one-way inclined block 29 is located in the one-way inclined groove. The two inclined surfaces are in contact within the groove 25; the driving shaft 36 is located within the auxiliary square groove 6; one end of the driving shaft 36 passes through the inner wall of the auxiliary square groove 6 and is connected to the ink distribution roller 4, and the other end is connected to the driving gear 37; the driven shaft 38 is connected to the inner wall of the auxiliary square groove 6; a driven gear 39 is installed on the driven shaft 38; the driven gear 39 meshes with the driving gear 37; a driven bevel gear 40 is installed on the driven shaft 38; the driven bevel gear 40 meshes with the driving bevel gear 9. When the ink dispenser 3 moves from one end of the wavy block 50 to the other, for example from end A to end B, it indicates that the ink coating on the transverse area at the top of the ink roller 4 has been formed. This causes the directional rack 35 facing end B to contact the one-way gear 22 located at that end, so that the right-angled surface of the one-way inclined groove 25 at the one-way circular groove 23 inside it contacts the right-angled surface of the one-way inclined block 29 on the positioning shaft 20, so that the one-way inclined block 29 and the one-way inclined groove 25 are engaged, thereby driving the positioning shaft 20 to rotate. Under the action of the driven pulley 21, the transmission belt 24, the driving pulley 10, the driving bevel gear 9, and the driven bevel gear 40, the driven shaft 38 on it is driven to rotate, so that the upper... The driven gear 39 rotates and meshes with the driving gear 37, causing it to drive the ink distribution roller 4 to rotate via the driving shaft 36. Simultaneously, the gears have a reduction ratio, so the power transmission to the driving gear 37 is already very low, resulting in a small rotation amplitude of the ink distribution roller 4. This avoids excessive amplitude that could lead to large differences in ink distribution on the ink distribution roller 4, affecting the detection effect and accuracy. The newly applied coating is flipped over, exposing the top of the ink distribution roller 4, which is uncoated. Through the lateral reset movement of the ink injector 3 (from end B to end A), the one-way gear 22 at end B resets and rotates, causing the inclined surface of the one-way groove 25 inside to contact... When the unidirectional inclined block 29 on the positioning shaft 20 reaches its inclined surface, it applies downward pressure, causing the unidirectional inclined block 29 to move within the limiting groove 26. This keeps the limiting spring 28 in a buffered state, preventing it from rotating the positioning shaft 20 and allowing it to rotate only in one direction. Consequently, the lateral reset movement of the ink dispenser 3 cannot reset the positioning shaft 20 at end B, preventing the ink dispenser 3 from rotating at end B. Meanwhile, the directional rack 35 facing end A has not yet contacted the unidirectional gear 22 at end A during its reset process, allowing the ink roller 4 to maintain its current angle and ensuring that the reset ink dispenser 3 evenly applies ink. When the directional rack 35 facing end A meshes with the unidirectional gear 22 at end A, the process repeats. During the operation, the directional rack 35 and the one-way gear 22 at end B are disengaged, which means that when the ink is evenly applied to different sidewalls of the ink roller 4, the coating can be evenly distributed without manual rotation of the ink roller 4. The coating is not only distributed laterally, but also distributed around the center of the ink roller 4, which reduces the workload of the operator. In addition, the lateral movement of the ink dispenser 3 is reciprocating. Each time it moves to the end point or the beginning point, the ink roller 4 will rotate slightly to adjust its position. This means that one lateral reciprocating movement of the ink dispenser 3 can apply two laterally evenly distributed ink coatings, which reduces the ink application time and improves the detection efficiency of the device.Furthermore, the lateral movement distance of the ink-distributing roller 4 is the same each time, ensuring that the flipping angle of the ink-distributing roller 4 is the same each time. If the coating on the ink-distributing roller 4 is in the form of lateral groups, then several lateral groups are coated on the ink-distributing roller 4. These lateral groups are arranged equidistantly around the center of the ink-distributing roller 4, as described above. This ensures that the coating on the ink-distributing roller 4 is uniform, whether arranged laterally or in a circular pattern, thereby guaranteeing the accuracy of the device's ink viscosity detection and further improving the device's detection effect.

[0022] This invention also provides a method for detecting the viscosity of packaging printing inks, comprising the following steps: Step 1: Operate the opposing control unit to install the ink dispenser 3 onto the loading / unloading block 7; Step 2: Activate the uniform ink coating device so that the ink dispenser 3 can uniformly apply ink to the ink coating roller 4 and distribute the ink coating on it evenly. Step 3: With the help of the flip-shifting component, the ink roller 4 is flipped slightly to apply ink at different positions on the ink roller 4.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A viscosity testing device for packaging printing inks, comprising a device stage, a testing instrument, and an ink dispenser; characterized in that: The detection instrument is installed on the top of the device platform; Ink distribution roller; The ink distribution roller is installed inside the opening of the testing instrument; A uniform ink coating device is mounted on a testing instrument; the uniform ink coating device is used to uniformly coat the printing ink to be tested onto the ink coating roller; the uniform ink coating device includes a repeating block; the repeating block is located above the ink coating roller; Auxiliary square grooves; two auxiliary square grooves are disposed inside the detection instrument and are symmetrically distributed with the opening of the detection instrument as the axis of symmetry. A counter-positioning control unit; the counter-positioning control unit is disposed on a repeating block; the counter-positioning control unit is used to load and unload an ink injector onto the repeating block; the ink injector is used to apply ink to an ink distribution roller; the counter-positioning control unit includes a loading and unloading block; the loading and unloading block is mounted on the repeating block; A flip-up positioning component is disposed within an auxiliary square groove; the flip-up positioning component is used to control the position of the ink-spreading roller; the flip-up positioning component includes a drive shaft mounted on a testing instrument; one end of the drive shaft is located within the auxiliary square groove, and this end is also connected to an active bevel gear; the other end of the drive shaft is connected to an active pulley.

2. The viscosity detection device for packaging printing inks according to claim 1, characterized in that: Includes a drive motor, which is installed at the bottom of the auxiliary square groove; A rotating shaft is connected to the testing instrument; one end of the rotating shaft extends into the auxiliary square groove and is connected to the output end of the drive motor; the other end of the rotating shaft is located at the top of the testing instrument and is also connected to a rotating disk. The rotating column is mounted on the edge of the rotating disk on the side away from the platform.

3. The viscosity testing device for packaging printing inks according to claim 2, characterized in that: Includes a rotating base; the rotating base is fixedly connected to the top of the testing instrument; Driven sliding columns; two drive sliding columns are connected through the rotating base on the side near the repeating block; the drive sliding columns and the rotating base are in sliding engagement; A rotating torque block is located at the top of the rotating disk; the two driving slides are connected together to the side of the rotating torque block; A rotating torque groove is provided on the side of the rotating torque block near the rotating disk; the rotating column is located in the rotating torque groove, and the two are in sliding fit.

4. The viscosity detection device for packaging printing inks according to claim 1, characterized in that: It includes a T-shaped base connected to the top of the device platform; two positioning shafts are mounted on the T-shaped base; the two positioning shafts are respectively located at two auxiliary square grooves; The driven pulley is connected to one end of the positioning shaft; A one-way gear is installed at the other end of the positioning shaft; the one-way gear has a one-way circular groove with the same size as the positioning shaft. A transmission belt, one end of which is connected to a driving pulley and the other end of which is connected to a driven pulley; the transmission belt slides in conjunction with the driving pulley and the driven pulley.

5. The viscosity testing device for packaging printing inks according to claim 4, characterized in that: Includes a unidirectional inclined groove; a plurality of the unidirectional inclined grooves are disposed within a unidirectional circular groove; the inclined surfaces on the plurality of unidirectional circular grooves all face the same direction; The limiting slide is located on the outer wall of the positioning shaft; the number of limiting slides is the same as that of the one-way inclined slide. The limiting slide plate fits into the limiting slide groove, and the two slide together. A limiting spring is located within a limiting groove; one end of the limiting spring is fixedly connected to a limiting slide plate, and the other end is fixedly connected to the limiting groove. A one-way inclined block is installed on the side of the limiting slide away from the limiting spring; the initial position of the one-way inclined block is located in the one-way inclined groove, and the inclined surfaces of the two are in contact.

6. The viscosity detection device for packaging printing inks according to claim 3, characterized in that: Includes a U-shaped square base; the U-shaped square base is installed on the side of the rotating torque block near the repeating block; the opening of the U-shaped square base is away from the rotating torque block; A directional cylinder is fixedly connected inside a U-shaped square base; the directional cylinder is connected through the moving block, and the two are slidably engaged. A directional spring is sleeved on a directional cylinder; one end of the directional spring is fixedly connected to a U-shaped square base, and the other end is fixedly connected to a repeating block; an extension wheel is installed on the repeating block; a directional T-post is installed on the repeating block, and directional racks are connected to both sides of the directional T-post, with two directional racks and two one-way gears corresponding one-to-one; when one set of one-way gears is in meshing connection with the directional rack, the one-way gear in the other set is located at the movement path of its corresponding directional rack.

7. The viscosity testing device for packaging printing inks according to claim 1, characterized in that: It includes an active rotating shaft located inside an auxiliary square groove; one end of the active rotating shaft passes through the inner wall of the auxiliary square groove and is connected to the ink distribution roller, and the other end is connected to an active gear; A driven shaft is connected to the inner wall of an auxiliary square groove; a driven gear is mounted on the driven shaft; the driven gear meshes with the driving gear; a driven bevel gear is mounted on the driven shaft; the driven bevel gear meshes with the driving bevel gear.

8. The viscosity detection device for packaging printing inks according to claim 1, characterized in that: This includes a displacement base, which is installed on the side of the loading / unloading block away from the repeating block; A dual-control lead screw, which is connected to the displacement base; A control motor is mounted on a displacement base; the control motor is connected to a double-control lead screw; two displacement blocks are symmetrically threaded onto the double-control lead screw; A displacement slide column is installed on the loading and unloading block; the displacement slide column is connected through the displacement circular block, and the two are slidably engaged; a guide cylinder is connected through the displacement circular block; the guide cylinder is slidably engaged with the displacement circular block; one end of the guide cylinder is connected to a guide limiting plate, and the other end is connected to a locking clamping block, the inner wall of the locking clamping block is provided with a rubber buffer pad, and the side wall of the ink dispenser is located at the movement path of the rubber buffer pad; a guide spring is sleeved on the guide cylinder, one end of which is fixedly connected to the guide limiting plate, and the other end is fixedly connected to the displacement circular block.

9. The viscosity detection device for packaging printing inks according to claim 6, characterized in that: It includes a wavy long block, which is fixedly connected to the top of the testing instrument; several semi-circular blocks are equidistantly arranged on the wavy long block, with the sidewalls of the semi-circular blocks facing the top of the device platform; both ends of the wavy long block extend to two auxiliary square grooves; when the repeating square block moves, it drives the extension wheel to move along the wavy long block, and the extension wheel continuously contacts several semi-circular blocks on the wavy long block; there is a concave area between two semi-circular blocks, and the initial position of the extension wheel is located in the concave area between two semi-circular blocks.

10. A method for detecting the viscosity of packaging printing inks, using the viscosity detection device for packaging printing inks as described in claim 1, characterized in that, Including the following steps: Step 1: Operate the opposing control unit to install the ink dispenser onto the loading / unloading block; Step 2: Activate the uniform ink coating device to ensure that the ink dispenser uniformly operates on the ink coating roller and that the ink coating on it is evenly distributed. Step 3: With the help of the flip-shifting component, the ink roller is flipped slightly to apply ink at different positions on the ink roller.

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