Adjusting mechanism of carton printing roller
By employing an adjustment mechanism in the flexographic printing press to make the printing roller move in a circular motion around the rotation axis of the anilox roller, the problems of shaking and imbalance during the adjustment process of the printing roller are solved, thereby improving printing accuracy and reducing energy consumption.
Patent Information
- Application Number
- CN202520734729.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-04-17
AI Technical Summary
The printing rollers, anilox rollers, and ink fountains in existing flexographic printing machines are quite heavy, and they are prone to shaking or becoming unbalanced during adjustment, which affects printing quality and increases energy consumption.
The adjustment mechanism makes the printing roller move in a circle around the rotation axis of the anilox roller, thereby achieving contact between the printing roller and the anilox roller and adjusting the distance between the printing roller and the impression roller, reducing the probability of wobbling and imbalance.
It improves the precision of printing adjustment, reduces energy consumption, ensures printing quality, and reduces the operating cost of flexographic printing machines.
Smart Images
Figure CN223850205U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of printing equipment, concretely relates to a kind of paper box printing roller's adjusting mechanism. BACKGROUND
[0002] Paper box printing is usually completed by flexographic printing machine using flexographic printing process, which usually includes printing roller, anilox roller and fountain, and the anilox roller needs to be in contact with the printing roller and extend into the fountain during printing process. The printing roller of the existing flexographic printing machine can move up and down to adapt to the printing of paper boxes with different thicknesses. However, during the movement of the printing roller, the anilox roller and the fountain usually need to move with the printing roller to ensure that the anilox roller is in contact with the printing roller and can extend into the fountain to stain ink. Due to the large overall weight of the printing roller, the anilox roller, the fountain and the ink in the fountain, shaking or imbalance may occur during the adjustment process, which reduces the adjustment accuracy and affects the printing quality. In addition, more energy is consumed during the adjustment process, increasing the operating cost of the flexographic printing machine. SUMMARY
[0003] The purpose of the utility model is to provide a kind of paper box printing roller's adjusting mechanism, the mechanism is driven by adjusting mechanism to make the printing roller do circular motion with the rotational axis of anilox roller as center line, so as to realize the adjustment of the distance between printing roller and impression roller only by driving the printing roller to move while ensuring that the printing roller is always in contact with the surface of anilox roller, reduce the probability of shaking and imbalance during the adjustment process.
[0004] The technical solution adopted by the utility model to solve the above problems is as follows:
[0005] A kind of paper box printing roller's adjusting mechanism, including rack, printing roller, impression roller, anilox roller and fountain, the printing roller, the impression roller and the anilox roller are rotationally arranged in the rack, the impression roller is arranged below the printing roller, the anilox roller is in contact with the printing roller, and the fountain is arranged below the anilox roller, the rack is provided with adjusting mechanism for driving the printing roller to do circular motion with the rotational axis of anilox roller as center line, and the rack is provided with driving mechanism for driving the printing roller, the impression roller and the anilox roller to rotate.
[0006] In the above technical solution, preferably, the adjusting mechanism includes an upper slide groove in the form of a circular arc, an upper support rod and a lead screw motor, the upper slide groove is provided with two and is respectively opened on the left and right sides of the rack, the center of the upper slide groove is located on the rotational axis of the anilox roller, the left and right ends of the printing roller are respectively slidingly arranged in the two upper slide grooves, the upper support rod is provided with two and is respectively slidingly arranged on the left and right sides of the rack, the left and right ends of the printing roller are respectively provided with upper bearing seats, and the two upper bearing seats are respectively slidingly arranged on the front and back of the two upper support rods, and the upper support rod is driven to move up and down by the lead screw motor.
[0007] Preferably, a lower slide groove is formed below the upper slide groove, and the left and right ends of the impression roller are slidably arranged in the lower slide groove; the upper and lower slide grooves are arranged in a mirror image; a lower support rod is arranged at the lower slide groove; the left and right ends of the impression roller are provided with lower bearing seats, and the lower bearing seats are slidably arranged on the lower support rod; and the lower support rod is driven to move up and down by the lead screw motor.
[0008] Preferably, the lead screw motor is fixed on the rack, and the lead screw of the lead screw motor comprises an upper half and a lower half with opposite screw directions; and the upper and lower support rods on the same side of the rack are threadedly connected to the upper half and the lower half, respectively.
[0009] Preferably, the driving mechanism comprises a left support, a first motor, a right support, a second motor and a third motor; the left support and the right support are fixed on the left side and the right side of the rack, respectively; the first motor is fixed on the left support; the output shaft of the first motor is coaxially fixed with the right end of the anilox roller; the second motor and the third motor are both fixed on the right support; the rotation axis of the output shaft of the second motor coincides with the center of the upper slide groove; the second motor is drivingly connected to the right end of the printing roller through a synchronous belt mechanism; and the rotation axis of the output shaft of the third motor coincides with the center of the lower slide groove; the third motor is drivingly connected to the right end of the impression roller through another synchronous belt mechanism.
[0010] Preferably, the front side of the ink fountain is provided with a scraper, and the scraper is attached to the surface of the anilox roller.
[0011] Compared with the prior art, the present application has the following advantages and effects:
[0012] The present application adjusts the distance between the printing roller and the impression roller through the adjusting mechanism for printing work of cartons with different thicknesses; since the printing roller moves in a circular motion with the rotation axis of the anilox roller as the center line, the printing roller is always in contact with the surface of the anilox roller, so that the present application only needs to move the printing roller to adjust the distance between the printing roller and the impression roller, thereby reducing the probability of shaking and imbalance during the adjustment process, improving the adjustment accuracy and ensuring the printing quality, while reducing the energy consumption during the adjustment process and reducing the operation cost of the flexographic printing machine. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 is a structural schematic view of the adjusting mechanism of the carton printing roller of the present application.
[0014] Figure 2 is Figure 1 the enlarged view of the right side of
[0015] Figure 3 isFigure 1 Structure diagram of the left side of figure 1.
[0016] Figure 4 Figure 2 is a side sectional view of figure 1. Figure 1
[0017] Wherein, the rack 1, printing roller 2, impression roller 3, anilox roller 4, ink fountain 5, scraper 51, adjusting mechanism 6, upper chute 61, upper support rod 62, screw motor 63, upper bearing seat 64, lower chute 65, lower support rod 66, lower bearing seat 67, upper half 68, lower half 69, drive mechanism 7, left bracket 71, first motor 72, right bracket 73, second motor 74, third motor 75, synchronous belt mechanism 76. DETAILED DESCRIPTION
[0018] The utility model will be further explained in detail below by combining with the drawings and through examples, and the following examples are the explanation of the utility model and the utility model is not limited to the following examples.
[0019] Referring to Figures 1-4 , the adjusting mechanism of the carton printing roller, including rack 1, printing roller 2, impression roller 3, anilox roller 4 and ink fountain 5, printing roller 2, impression roller 3 and anilox roller 4 are rotationally arranged in rack 1, impression roller 3 is arranged below printing roller 2, anilox roller 4 is in contact with printing roller 2, ink fountain 5 is arranged below anilox roller 4, characterized by: the rack 1 is provided with adjusting mechanism 6 that drives printing roller 2 to do circular motion with the rotation axis of anilox roller 4 as the center line, and the rack 1 is provided with drive mechanism 7 that drives printing roller 2, impression roller 3 and anilox roller 4 to rotate.
[0020] The utility model drives printing roller 2 to move through adjusting mechanism 6 to adjust the spacing between printing roller 2 and impression roller 3 for the printing work of carton of different thicknesses, since printing roller 2 does circular motion with the rotation axis of anilox roller 4 as the center line, printing roller 2 can be in contact with the surface of anilox roller 4 all the time, so that when drive mechanism 7 drives printing roller 2, impression roller 3 and anilox roller 4 to rotate, the ink on anilox roller 4 can be adhered to printing roller 2, so as to print the carton passing between printing roller 2 and impression roller 3. Since the utility model only needs to drive printing roller 2 to move to realize the purpose of adjusting the spacing between printing roller 2 and impression roller 3, the position of anilox roller 4 and ink fountain 5 does not need to move, so as to reduce the probability of shaking and imbalance in the adjusting process, improve the accuracy of adjustment to ensure the quality of printing, reduce the energy consumption in the adjusting process and reduce the operation cost of flexographic printing machine.
[0021] Referring to Figure 2 , Figure 3 The adjusting mechanism 6 comprises an upper arc-shaped sliding groove 61, an upper supporting rod 62 and a screw rod motor 63, the upper sliding groove 61 is provided with two and is respectively arranged on the left and right sides of the rack 1, the center of the upper sliding groove 61 is located on the rotation axis of the anilox roller 4, the left and right ends of the printing roller 2 are respectively slidably arranged in the two upper sliding grooves 61, the upper supporting rod 62 is provided with two and is respectively arranged on the left and right sides of the rack 1, the left and right ends of the printing roller 2 are provided with upper bearing seats 64, and the two upper bearing seats 64 are respectively slidably arranged on the two upper supporting rods 62, and the upper supporting rod 62 is driven to move up and down by the screw rod motor 63.
[0022] When the screw rod motor 63 drives the upper supporting rod 62 to move up and down, the upper bearing seat 64 moves forward and backward on the upper supporting rod 62, so that the left and right ends of the printing roller 2 can move along the track of the upper sliding groove 61, and since the center of the upper sliding groove 61 is located on the rotation axis of the anilox roller 4, the printing roller 2 can always be in contact with the anilox roller 4 when moving along the sliding groove, and the purpose of adhering ink on the printing roller 2 by the anilox roller 4 can be achieved. The adjusting mechanism 6 has simple structure, low cost and is easy to maintain.
[0023] Referring to Figure 2 , Figure 3 , the lower sliding groove 65 is arranged below the upper sliding groove 61, the left and right ends of the impression roller 3 are slidably arranged in the lower sliding groove 65, the upper sliding groove 61 and the lower sliding groove 65 are arranged in mirror image, the lower supporting rod 66 is arranged at the lower sliding groove 65, the left and right ends of the impression roller 3 are provided with lower bearing seats 67, and the lower bearing seats 67 are slidably arranged on the lower supporting rod 66, and the lower supporting rod 66 is driven to move up and down by the screw rod motor 63.
[0024] When the screw rod motor 63 drives the lower supporting rod 66 to move up and down, the lower bearing seat 67 moves forward and backward on the lower supporting rod 66, so that the left and right ends of the impression roller 3 can move along the track of the lower sliding groove 65, and since the upper sliding groove 61 and the lower sliding groove 65 are arranged in mirror image, the movement tracks of the printing roller 2 and the impression roller 3 are also arranged in mirror image, so that the upper supporting rod 62 and the lower supporting rod 66 can be simultaneously moved in opposite directions by the same distance by the action of the screw rod motor 63, so that the printing roller 2 and the impression roller 3 can be moved away from or close to each other to adapt to the printing of cartons of different thicknesses, and at the same time, the rotation axis of the printing roller 2 and the rotation axis of the impression roller 3 are always located on the same vertical plane, thereby improving the stability of the printing roller 2 and the impression roller 3 in clamping the carton, and reducing the occurrence of the situation that the printing is not clear due to the low pressure of the printing roller 2 on the carton when the printing roller 2 and the impression roller 3 are misaligned upward and downward.
[0025] Referring to Figure 2 , Figure 3The screw rod motor 63 is fixed on the frame 1, and the screw rod of the screw rod motor 63 comprises an upper half 68 and a lower half 69 with opposite screw directions, and the upper support rod 62 and the lower support rod 66 on the same side of the frame 1 are respectively screwed on the upper half 68 and the lower half 69.
[0026] When the screw rod motor 63 drives the screw rod to rotate, the upper half 68 and the lower half 69 respectively drive the upper support rod 62 and the lower support rod 66 to move in opposite directions, and the moving distances of the upper support rod 62 and the lower support rod 66 can be controlled to be the same, so that the rotating axes of the printing roller 2 and the impression roller 3 can be ensured to be located on the same vertical plane at all times, while the number of the screw rod motor 63 is reduced, and the complexity and manufacturing cost of the adjusting mechanism 6 are reduced.
[0027] Referring to Figure 2 , Figure 3 The driving mechanism 7 comprises a left support 71, a first motor 72, a right support 73, a second motor 74 and a third motor 75, the left support 71 and the right support 73 are respectively fixed on the left side and the right side of the frame 1, the first motor 72 is fixed on the left support 71, the output shaft of the first motor 72 is coaxially fixed with the right end of the anilox roller 4, the second motor 74 and the third motor 75 are both fixed on the right support 73, the rotating axis of the output shaft of the second motor 74 coincides with the center of the upper slide groove 61, the second motor 74 is in transmission connection with the right end of the printing roller 2 through a synchronous belt mechanism 76, and the rotating axis of the output shaft of the third motor 75 coincides with the center of the lower slide groove 65, the third motor 75 is in transmission connection with the right end of the impression roller 3 through another synchronous belt mechanism 76.
[0028] The anilox roller 4, the printing roller 2 and the impression roller 3 are respectively driven to rotate by the first motor 72, the second motor 74 and the third motor 75, the rotating directions of the anilox roller 4 and the impression roller 3 are opposite to that of the printing roller 2, so that the anilox roller 4 can adhere ink from the ink fountain 5 and transfer to the printing roller 2, the printing roller 2 and the impression roller 3 drive the carton to move while printing, the position relationship between the second motor 74 and the upper slide groove 61 can ensure that the distance between the printing roller 2 and the second motor 74 remains unchanged when the printing roller 2 moves in the upper slide groove 61, so that the second motor 74 can drive the printing roller 2 through the synchronous belt mechanism 76, and the position relationship between the third motor 75 and the lower slide groove 65 can enable the second motor 74 to drive the impression roller 3 through another synchronous belt mechanism 76, thereby reducing the structural complexity of the driving mechanism 7.
[0029] Referring to Figure 4 The front side of the ink fountain 5 is provided with a scraper 51, and the scraper 51 is in contact with the surface of the anilox roller 4.
[0030] By the scraping action of the doctor blade 51, the excess ink is scraped into the fountain 5 before the ink adhered to the anilox roll 4 contacts the printing roll 2, improving the clarity of the print.
[0031] The above only is the illustration of the utility model described in the specification. The skilled in the art to which the utility model belongs can make various modifications or supplements or adopt similar ways to replace to the described specific embodiments, as long as not deviating from the content of the utility model specification or beyond the range defined by the claims, all should belong to the protection scope of the utility model.
Claims
1. An adjusting mechanism for a carton printing roller, comprising a frame, a printing roller, an impression roller, an anilox roller, and an ink fountain, wherein the printing roller, the impression roller, and the anilox roller are all rotatably disposed within the frame, the impression roller is disposed below the printing roller, the anilox roller is in contact with the printing roller, and the ink fountain is disposed below the anilox roller, characterized in that: The rack is provided with an adjusting mechanism for driving the printing roller to make a circular motion with the rotation axis of the anilox roller as the center line, and the rack is provided with a driving mechanism for driving the printing roller, the impression roller and the anilox roller to rotate.
2. The paper box printing roller adjustment mechanism according to claim 1, characterized in that: The adjusting mechanism comprises upper slide grooves in the shape of circular arcs, upper support rods and lead screw motors, the two upper slide grooves are arranged on the left and right sides of the rack respectively, the center of the circular arc of each upper slide groove is located on the rotation axis of the anilox roller, the left and right ends of the printing roller are respectively slidably arranged in the two upper slide grooves, the two upper support rods are arranged on the left and right sides of the rack respectively and are slidably arranged on the upper and lower sides of the rack, the left and right ends of the printing roller are respectively provided with upper bearing seats, and the two upper bearing seats are slidably arranged on the front and back of the two upper support rods, and the upper support rods are driven to move up and down by the lead screw motors.
3. A carton printing roller adjustment mechanism according to claim 2, characterised in that: The lower side of each upper slide groove is provided with a lower slide groove, the left and right ends of the impression roller are slidably arranged in the lower slide grooves, the upper slide grooves and the lower slide grooves are arranged in a mirror image, the lower slide grooves are provided with lower support rods, the left and right ends of the impression roller are provided with lower bearing seats, and the lower bearing seats are slidably arranged on the front and back of the lower support rods, and the lower support rods are driven to move up and down by the lead screw motors.
4. The paper box printing roller adjustment mechanism according to claim 2, characterized in that: The lead screw motor is fixed on the rack, the lead screw of the lead screw motor comprises an upper half and a lower half with opposite screw directions, and the upper support rods and the lower support rods on the same side of the rack are threadedly connected to the upper half and the lower half respectively.
5. The paper box printing roller adjustment mechanism according to claim 1, characterized in that: The driving mechanism comprises left brackets, a first motor, right brackets, a second motor and a third motor, the left brackets and the right brackets are fixed on the left side and the right side of the rack respectively, the first motor is fixed on the left bracket, the output shaft of the first motor is coaxially fixed with the right end of the anilox roller, the second motor and the third motor are fixed on the right bracket, the rotation axis of the output shaft of the second motor coincides with the center of the upper slide groove, the second motor is drivingly connected to the right end of the printing roller through a synchronous belt mechanism, and the rotation axis of the output shaft of the third motor coincides with the center of the lower slide groove, the third motor is drivingly connected to the right end of the impression roller through another synchronous belt mechanism.
6. The paper box printing roller adjustment mechanism according to claim 1, characterized in that: The front side of the ink fountain is provided with a scraper, and the scraper is in contact with the surface of the anilox roller.