Screening mechanism for printing ink sand mill
By installing a cleaner inside the disperser of the ink sand mill, and using radial and axial brushes to unclog the screen holes in the screen cylinder online, the problem of screen hole blockage is solved, screening efficiency and flexibility are improved, and energy saving and cost reduction are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINAN NEPTON DIGITAL TECH CO LTD
- Filing Date
- 2025-04-25
- Publication Date
- 2026-05-05
AI Technical Summary
During the screening process of an ink sand mill, the screen holes of the screen cylinder are easily clogged by ink pigments, resulting in reduced screening efficiency.
Design a screening mechanism for an ink sand mill, including a disperser and a screen cylinder. The disperser is equipped with a cleaner, which contains radial brushes and axial brushes. The cleaner is driven to rotate by the disperser. The radial brushes clean the screen holes on the end face of the screen cylinder, and the axial brushes clean the screen holes on the side face of the screen cylinder, thereby achieving online unblocking of the screen holes.
It improves screening efficiency, reduces power source requirements, has a simple and reliable structure, adapts to screen cylinders of different diameters, saves energy and reduces costs, and improves the flexibility of use and space utilization.
Smart Images
Figure CN224195273U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ink processing equipment technology, specifically to a screening mechanism for an ink sand mill. Background Technology
[0002] When processing inks, a sand mill is needed to grind the ink pigments. This grinding process refines the pigment particles in the ink, improving not only its hiding power and color saturation but also its stability. The finer pigment particles help the ink adhere better to the substrate, reducing plate clogging during printing and enhancing print clarity and detail.
[0003] The working principle of a sand mill is that the main shaft drives the disperser to rotate. The disperser agitates and disperses the grinding media and ink pigments in the sand mill cylinder, causing the ink pigments to collide, rub, and shear violently with the grinding media, thereby achieving the pulverization and refinement of the pigments.
[0004] See Figure 12 The disperser 1 includes a dispersing shaft 11. A dispersing disc 12 and a dispersing pin 13 are provided on the outer wall of the dispersing shaft 11. The dispersing shaft 11 is fixedly mounted on the main shaft of the sand mill and is driven to rotate by the main shaft. A receiving cavity 111 is provided at the right end of the dispersing shaft 11. A through hole 112 is provided on the right side of the dispersing shaft 11, communicating with the receiving cavity 111. A sieve cylinder 7 is provided inside the receiving cavity 111. The sieve cylinder 7 is fixedly mounted on a sieve cylinder cover 71. A discharge port 711 is provided on the sieve cylinder cover 71, which is fixedly mounted on an end cover. The end cover is fixedly mounted on the end of the sand mill cylinder. Small particles of ink pigment, after crushing and grinding, sequentially pass through the through hole 112 and the sieve holes of the sieve cylinder 7 into the inner cavity of the sieve cylinder 7, and are then discharged from the discharge port 711.
[0005] However, during the screening process described above, the ink pigments intercepted by the screen cylinder can easily clog the screen holes, thus reducing the screening efficiency. Utility Model Content
[0006] To address the aforementioned shortcomings of existing technologies, this invention proposes a screening mechanism for an ink sand mill. This invention can unclog the screen holes of the screen cylinder, thereby improving screening efficiency.
[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0008] A sieving mechanism for an ink sand mill includes a disperser and a sieve cylinder. The disperser has a receiving cavity at its end and a through hole on its side that communicates with the receiving cavity. A cleaner is provided inside the receiving cavity. The cleaner includes several radial brushes, the outer ends of which are connected to axial brushes. All radial brushes and all axial brushes surround the cleaning cavity, which is equipped with a sieve cylinder. The radial brushes abut against the outer end face of the sieve cylinder, and the axial brushes abut against the outer wall of the sieve cylinder.
[0009] Furthermore, the disperser is provided with a stepped groove at its end, and the accommodating cavity is provided with a plurality of dovetail grooves in its circumference. The dovetail grooves are connected to the stepped grooves. The axial brush is slidably connected to the dovetail grooves. A retaining ring is provided in the stepped grooves. The retaining ring abuts against the end of the axial brush away from the radial brush. The retaining ring is connected to the disperser by fasteners.
[0010] Furthermore, there are at least two radial brushes, all of which are connected at the end away from the axial brush.
[0011] Furthermore, the radial brush includes a first radial brush and a second radial brush, which are slidably connected radially. All the first radial brushes are connected at the end away from the second radial brush to form a central portion, and the second radial brush has the axial brush at the end away from the first radial brush.
[0012] Furthermore, it also includes an adjustment structure, which includes an adjustment shaft, an adjustment disc, and a limiting member. The adjustment shaft is located at the center, the adjustment disc has an adjustment hole that is rotatably engaged with the adjustment shaft, the adjustment disc has several arc-shaped rods circumferentially arranged, each arc-shaped rod has an arc-shaped hole, and a sliding rod is located inside the arc-shaped hole. The sliding rod is located on the second radial brush, the adjustment shaft has a limiting member, and the adjustment disc is sandwiched between the limiting member and the center.
[0013] Furthermore, the adjusting shaft is a screw, and the limiting component is a nut, which is threadedly connected to the screw.
[0014] The beneficial effects of this utility model are:
[0015] 1. By installing a cleaner in the accommodating cavity of the disperser, and a screen cylinder in the cleaning cavity of the cleaner, the disperser can drive the cleaner to rotate around the screen cylinder. The radial brush in the cleaner cleans the end face screen holes of the screen cylinder, and the axial brush in the cleaner cleans the side screen holes of the screen cylinder. This can unclog the screen holes of the screen cylinder, realize online unblocking, and eliminate the need to stop the machine to unblock the screen cylinder, which is beneficial to improving screening efficiency.
[0016] 2. Because the cleaner is installed inside the dispersant's accommodating cavity, the dispersant can drive the cleaner to rotate around the screen cylinder together. There is no need to use other power sources to drive the cleaner to rotate around the screen cylinder, which can reduce the power source and help save energy and reduce costs.
[0017] 3. The cleaner is a purely mechanical structure, which is simple and reliable.
[0018] 4. By utilizing the radial sliding connection between the first radial brush and the second radial brush, the overall length of the first radial brush and the second radial brush can be adjusted to accommodate dispersion shafts and screen cylinders with larger diameters, thereby enabling the unblocking of screen cylinders with larger diameters and improving the flexibility of use.
[0019] 5. By setting an adjustment structure, the length of all radial brushes can be adjusted simultaneously, which can improve the efficiency of adjusting the length of all radial brushes.
[0020] 6. In the adjustment structure, when the adjustment disc is rotated clockwise, it causes all the arc-shaped rods to rotate clockwise together. The wall of the arc-shaped hole pushes the sliding rod away from the adjustment disc, causing the sliding rod to move the second radial brush radially outward, thus increasing the overall length of the first and second radial brushes. Conversely, when the adjustment disc is rotated counterclockwise, the overall length of the first and second radial brushes decreases. The adjustment structure adjusts the length of all radial brushes by rotation, making the entire adjustment structure compact in axial space and improving space utilization. Attached Figure Description
[0021] Figure 1 This is a three-dimensional view of a screening mechanism for an ink sand mill;
[0022] Figure 2 This is a 3D diagram of the disperser;
[0023] Figure 3 It's a 3D image of the cleaner;
[0024] Figure 4 It is a 3D view of the retaining ring and screw;
[0025] Figure 5 It is a 3D view of the assembly of the sieve cylinder and sieve cylinder cover;
[0026] Figure 6 This is the main view of the assembled sieve cylinder and sieve cylinder cover;
[0027] Figure 7 This is a schematic diagram illustrating the use of a screening mechanism in an ink sand mill.
[0028] Figure 8 This is a perspective view of the cleaner in Example 2;
[0029] Figure 9 This is a partial perspective view of the cleaner in Example 2;
[0030] Figure 10 This is a partial front view of the cleaner in Embodiment 2;
[0031] Figure 11This is a right view of the cleaner in Embodiment 2;
[0032] Figure 12 It is a 3D diagram of the background technology.
[0033] Explanation of reference numerals in the attached figures:
[0034] 1-Disperser, 11-Dispersing shaft, 111-Receiving cavity, 112-Through hole, 113-Stepped groove, 114-Dovetail groove, 12-Dispersing disc, 13-Dispersing pin
[0035] 2-Spindle,
[0036] 3-Grinding cylinder, 31-End cap,
[0037] 4-Cleaner, 41-Radial brush, 411-First radial brush, 4111-Sliding cavity, 4112-Center, 412-Second radial brush, 42-Axial brush
[0038] 5-stop ring,
[0039] 6-Screws
[0040] 7-Screen cylinder, 71-Screen cylinder cover, 711-Discharge port,
[0041] 8-Adjusting structure, 81-Screw, 82-Adjusting disc, 821-Arc rod, 822-Arc hole, 823-Slide rod, 83-Nut. Detailed Implementation
[0042] To better understand this utility model, it will be further described below with reference to the accompanying drawings. It is worth noting that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings. They are used for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0043] Example 1:
[0044] See Figures 1 to 7 A screening mechanism for an ink sand mill includes a disperser 1 and a screen cylinder 7.
[0045] The disperser 1 includes a dispersing shaft 11 and a dispersing structure. The dispersing structure includes a dispersing disc 12 and a dispersing pin 13, both of which are disposed on the outer side wall of the dispersing shaft 11. The dispersing shaft 11, dispersing disc 12, and dispersing pin 13 are integrally formed. The dispersing shaft 11 is fixedly mounted on the main shaft 2 of the sand mill and is driven to rotate by the main shaft 2 to agitate and disperse the grinding media and ink pigments inside the sand mill cylinder 3.
[0046] The right end of the dispersion shaft 11 is provided with a receiving cavity 111, and the right side of the dispersion shaft 11 is provided with a through hole 112, which communicates with the receiving cavity 111. The right end of the dispersion shaft 11 is also provided with a stepped groove 113, and three dovetail grooves 114 are provided around the receiving cavity 111, which communicate with the stepped groove 113.
[0047] The cavity 111 is equipped with a cleaner 4, which includes three radial brushes 41 and three axial brushes 42. The three radial brushes 41 are arranged in a radial pattern, and each radial brush 41 has an axial brush 42 at its outer end. The three radial brushes 41 and the three axial brushes 42 are an integral structure.
[0048] When installing the cleaner 4 into the receiving cavity 111, first insert the end of the axial brush 42 near the radial brush 41 into the dovetail groove 114. After the axial brush 42 is fully inserted into the dovetail groove 114, insert the retaining ring 5 into the stepped groove 113 so that the retaining ring 5 abuts against the end of the axial brush 42 away from the radial brush 41. At this time, the retaining ring 5 can prevent the axial brush 42 from sliding out of the dovetail groove 114. Finally, use fasteners to fix the retaining ring 5 to the bottom of the stepped groove 113. The fasteners can be screws 6.
[0049] All radial brushes 41 and all axial brushes 42 surround a cleaning chamber, within which a screen cylinder 7 is installed. The radial brushes 41 abut against the outer end face of the screen cylinder 7, and the axial brushes 42 abut against the outer side wall of the screen cylinder 7. The screen cylinder 7 is fixedly mounted on a screen cylinder cover 71, which has a discharge port 711 that communicates with the inner cavity of the screen cylinder 7. The screen cylinder cover 71 is fixedly mounted on an end cover 31 by screws 6, and the end cover 31 is fixedly mounted on the right end of the grinding cylinder 3 by screws 6.
[0050] The working principle of this embodiment 1 is as follows:
[0051] When the main shaft 2 drives the disperser 1 to rotate, the disperser 1 agitates and disperses the grinding media and ink pigments in the sand mill 3. After the ink pigments are squeezed and collided with the grinding media, they are crushed and ground. The small particles of ink pigments after crushing and grinding pass through the through hole 112 and the sieve hole of the sieve cylinder 7 in sequence and enter the inner cavity of the sieve cylinder 7, and are then discharged from the discharge port 711.
[0052] At the same time, when the main shaft 2 drives the disperser 1 to rotate, the disperser 1 drives the cleaner 4 to rotate together. Since the screen cylinder 7 remains stationary, the cleaner 4 rotates around the screen cylinder 7. The radial brush 41 in the cleaner 4 cleans the end face screen holes of the screen cylinder 7, and the axial brush 42 in the cleaner 4 cleans the side screen holes of the screen cylinder 7, thus unblocking the screen holes of the screen cylinder 7 and ensuring screening efficiency.
[0053] Based on the above working principle, it can be seen that Embodiment 1 has the following effects:
[0054] First, in this embodiment 1, by setting a cleaner 4 in the accommodating cavity 111 of the disperser 1 and setting a screen cylinder 7 in the cleaning cavity of the cleaner 4, the disperser 1 can drive the cleaner 4 to rotate around the screen cylinder 7. The radial brush 41 in the cleaner 4 cleans the end face screen holes of the screen cylinder 7, and the axial brush 42 in the cleaner 4 cleans the side screen holes of the screen cylinder 7, which can unclog the screen holes of the screen cylinder 7, realize online unblocking, and eliminate the need to stop the machine to unblock the screen cylinder 7, which is beneficial to improving the screening efficiency.
[0055] Secondly, in this embodiment 1, since the cleaner 4 is installed in the accommodating cavity 111 of the disperser 1, the disperser 1 can drive the cleaner 4 to rotate around the screen cylinder 7 together. There is no need to use other power sources to drive the cleaner 4 to rotate around the screen cylinder 7, which can reduce the power source and help save energy and reduce costs.
[0056] Third, in this embodiment 1, the cleaner 4 is a purely mechanical structure, which is simple and reliable.
[0057] Example 2:
[0058] This embodiment 2 is a further improvement on embodiment 1:
[0059] See Figures 8 to 11 The radial brush 41 includes a first radial brush 411 and a second radial brush 412. The first radial brush 411 has a sliding cavity 4111 inside, and the second radial brush 412 slides radially within the sliding cavity 4111. All the first radial brushes 411 are connected at the end away from the second radial brush 412 to form a central portion 4112, and all the first radial brushes 411 are a single integral structure. The second radial brush 412 has an axial brush 42 at the end away from the first radial brush 411, and the second radial brush 412 and the axial brush 42 are a single integral structure.
[0060] The sieving mechanism for an ink sand mill in Embodiment 2 further includes an adjusting structure 8. The adjusting structure 8 includes an adjusting shaft, an adjusting disc 82, and a limiting component. The adjusting shaft is a screw 81, which is welded and fixed to the center portion 4112. The adjusting disc 82 has an adjusting hole that rotatably engages with the screw 81. Three arc-shaped rods 821 are circumferentially arranged on the adjusting disc 82, and the arc-shaped rods 821 are integral with the adjusting disc 82. Arc-shaped holes 822 are provided on the arc-shaped rods 821. A sliding rod 823 is provided within the arc-shaped hole 822 and is welded and fixed to the second radial brush 412. The limiting component is a nut 83, which is threadedly connected to the screw 81, and the adjusting disc 82 is clamped between the nut 83 and the center portion 4112.
[0061] The working principle of this embodiment 2 is as follows:
[0062] For the dispersion shaft 11 and screen cylinder 7 with larger diameter specifications, the length of the radial brush 41 needs to be increased in order to accommodate the screen cylinder 7 within the cleaning cavity formed by the radial brush 41 and the axial brush 42.
[0063] When increasing the length of radial brush 41, the operation is as follows:
[0064] Step S1: Loosen the nut 83 outward to increase the distance between the nut 83 and the center part 4112, so that the adjusting plate 82, which was originally clamped between the nut 83 and the center part 4112, is relaxed. At this time, the adjusting plate 82 can rotate around the screw 81.
[0065] Step S2: Rotate the adjusting disk 82 clockwise. The adjusting disk 82 drives all the arc-shaped rods 821 to rotate clockwise together. The wall of the arc-shaped hole 822 pushes the slide rod 823 away from the adjusting disk 82. The slide rod 823 drives the second radial brush 412 to move radially outward, thereby increasing the overall length of the first radial brush 411 and the second radial brush 412 (i.e., the length of the radial brush 41 is increased).
[0066] Step S3: Tighten the nut 83 in the reverse direction. The distance between the nut 83 and the center part 4112 decreases, so that the adjusting plate 82 is re-clamped between the nut 83 and the center part 4112. At this time, the adjusting plate 82 cannot rotate around the screw 81. The position of the arc rod 821 around the adjusting plate 82 is fixed. The arc hole 822 stops pushing the slide rod 823, so that the position of the slide rod 823 and the second radial brush 412 is fixed, so that the radial brush 41 can stabilize at its current length.
[0067] Conversely, when it is necessary to reduce the length of the radial brush 41, in step S2, the adjusting disk 82 is rotated in the opposite direction. The adjusting disk 82 drives all the arc rods 821 to rotate in the opposite direction together. The wall of the arc hole 822 pushes the slide rod 823 towards the adjusting disk 82. The slide rod 823 drives the second radial brush 412 to move radially inward, so that the overall length of the first radial brush 411 and the second radial brush 412 is reduced (that is, the length of the radial brush 41 is reduced).
[0068] Based on the above working principle, it can be seen that Embodiment 2 has the following effects:
[0069] First, by utilizing the radial sliding connection of the first radial brush 411 and the second radial brush 412, the overall length of the first radial brush 411 and the second radial brush 412 can be adjusted to accommodate the larger diameter of the dispersion shaft 11 and the screen cylinder 7, thereby enabling the screen cylinder 7 with a larger diameter to be unblocked, which is beneficial to improving the flexibility of use.
[0070] Secondly, by setting the adjustment structure 8, the length of all radial brushes 41 can be adjusted simultaneously, which can improve the efficiency of length adjustment of all radial brushes 41.
[0071] Third, in the adjustment structure 8, when the adjustment disk 82 is rotated clockwise, the adjustment disk 82 drives all the arc-shaped rods 821 to rotate clockwise together. The wall of the arc-shaped hole 822 pushes the slide rod 823 away from the adjustment disk 82. The slide rod 823 drives the second radial brush 412 to move radially outward, thereby increasing the overall length of the first radial brush 411 and the second radial brush 412. Conversely, when the adjustment disk 82 is rotated in the opposite direction, the overall length of the first radial brush 411 and the second radial brush 412 decreases. The adjustment structure 8 adjusts the length of all radial brushes 41 by rotation, making the entire adjustment structure 8 compact in axial space, which is beneficial to improving space utilization.
[0072] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A sieving mechanism for an ink sand mill, comprising a disperser and a sieve cylinder, wherein the disperser has a receiving cavity at its end, a through hole on its side communicating with the receiving cavity, and a sieve cylinder is disposed within the receiving cavity, characterized in that, The cavity is equipped with a cleaner, which includes several radial brushes. The outer ends of the radial brushes are connected to the axial brushes. All the radial brushes and all the axial brushes surround the cleaning cavity. The cleaning cavity is equipped with the screen cylinder. The radial brushes abut against the outer end face of the screen cylinder, and the axial brushes abut against the outer wall of the screen cylinder.
2. The screening mechanism for an ink sand mill according to claim 1, characterized in that, The disperser has a stepped groove at its end, and the accommodating cavity has several dovetail grooves around its circumference. The dovetail grooves are connected to the stepped grooves. The axial brush is slidably connected to the dovetail grooves. A retaining ring is provided in the stepped groove. The retaining ring abuts against the end of the axial brush away from the radial brush. The retaining ring is connected to the disperser by fasteners.
3. A screening mechanism for an ink sand mill according to claim 1 or 2, characterized in that, There are at least two radial brushes, and all radial brushes are connected at the end away from the axial brush.
4. A screening mechanism for an ink sand mill according to claim 3, characterized in that, The radial brush includes a first radial brush and a second radial brush, which are slidably connected radially. All the first radial brushes are connected at the end away from the second radial brush to form a central portion, and the second radial brush has the axial brush at the end away from the first radial brush.
5. A sieving mechanism for an ink sand mill according to claim 4, characterized in that, It also includes an adjustment structure, which includes an adjustment shaft, an adjustment disc, and a limiting member. The adjustment shaft is located at the center, the adjustment disc has an adjustment hole that is rotatably engaged with the adjustment shaft, the adjustment disc has several arc-shaped rods circumferentially arranged, each arc-shaped rod has an arc-shaped hole, and a sliding rod is located inside the arc-shaped hole. The sliding rod is located on the second radial brush, the adjustment shaft has a limiting member, and the adjustment disc is sandwiched between the limiting member and the center.
6. A screening mechanism for an ink sand mill according to claim 5, characterized in that, The adjusting shaft is a screw, and the limiting component is a nut, which is threadedly connected to the screw.