Rotary flexographic printing machine
By designing a positioning device in a rotary flexographic printing machine, the problem of easy skewness when replacing the printed flexographic printing machine is solved, and the correct positioning and fixing of the printed flexographic printing is achieved, which improves the stability and quality of printing.
Patent Information
- Application Number
- CN202421423406.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-06-20
AI Technical Summary
Existing flexographic printing machines are prone to skew when replacing the printing flexographic printing, resulting in the inability to print normally, affecting the printing effect.
A rotary flexographic printing machine including positioning devices is designed, which consists of grooves, fixing rods, sliders, clamps and springs. Through the cooperation of these components, the printing flexographic printing is ensured when pasted to the surface of the printing roller. Not skewed.
It effectively avoids the skew problem of printing flexographic plates when replacing them, ensures the correct positioning and fixation of the printing flexographic plates on the printing roller surface, avoids wrinkles and detachments during the printing process, and improves the stability and quality of printing.
Smart Images
Figure CN222451640U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rotary flexographic printing presses, in particular to a rotary flexographic printing press. Background Art
[0002] Flexographic printing presses use fluid ink with high fluidity. The ink is transferred to the image and text part of the printing plate by the ink fountain rubber roller and the anilox transfer roller to make it inked. Then the pressure roller applies printing pressure to transfer the ink on the printing plate to the substrate, and finally the printing process is completed through the drying surface.
[0003] The printing flexo plate on the surface of a general flexographic printing machine is usually replaced manually by workers. Since the printing roller is a smooth column, the printing flexo plate may be skewed on the surface of the printing roller when the operator is fixing the printing flexo plate, causing the printing flexo plate to be skewed and unable to print, which in turn causes an impact. Utility Model Content
[0004] The utility model aims to solve the shortcomings in the prior art and proposes a rotary flexographic printing machine.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: it includes a printing press, a power system arranged on the top of the printing press, a printing roller and a winding roller arranged on the side of the power system, a positioning device is arranged on the side of the printing roller, and the positioning device includes a groove opened on the surface of the printing roller, a fixed rod arranged inside the groove, a slider slidably installed on the fixed rod, a telescopic rod arranged on one side of the slider, a block arranged at the end of the telescopic rod away from the slider, and a first spring sleeved on the telescopic rod.
[0006] The effects achieved by the above components are as follows: under the action of the positioning device, the printing flexo plate will not be skewed when it is pasted to the surface of the printing roller. Under the action of the first spring, the printing flexo plate can be positioned between the slider and the block, thereby avoiding the skew phenomenon. When using the printing press, the paper to be printed is put on the surface of the rotating roller, the paper passes through the traction roller, the closing device passes between the squeezing roller and the printing roller, the power system is started, and the traction roller, the printing roller and the squeezing roller are rotated, so that the paper is printed with fonts, the printed paper is blown dry by the blow dryer, and the blown dry paper is wrapped around the surface of the winding roller for winding, thereby completing the printing phenomenon.
[0007] Preferably, a second spring is sleeved on the surface of the fixing rod, and two ends of the second spring are fixedly connected to the side surfaces of the sliding block and the inner wall of the groove respectively.
[0008] The effect achieved by the above components is that under the action of the second spring, the slider can be pulled, thereby preventing the printing flexographic plate from wrinkling on the surface of the printing roller.
[0009] Preferably, a rectangular plate is fixedly connected to the side surface of the sliding block, a clamping rod is inserted into the surface of the rectangular plate, a circular hole is opened on the inner wall of the groove, and the clamping rod is inserted into the inside of the circular hole.
[0010] The effect achieved by the above components is that the slider can be fixed in a suitable position under the action of the clamping rod and the round hole, thereby preventing the slider from being pulled and shaken.
[0011] Preferably, an anti-sliding block is fixedly connected to the upper top of the sliding block, and the anti-sliding block is a rubber block.
[0012] The effect achieved by the above components is that, under the action of the anti-sliding block, the printing flexographic plate will not be separated from between the block and the sliding block.
[0013] Preferably, a rubber plate is fixedly connected to the side of the clamping block, and the rubber plate is arranged on a side of the clamping block close to the sliding block.
[0014] The effects achieved by the above components are as follows: under the action of the rubber sheet, the printing flexo plate can be fixed on the surface of the card block, thereby achieving the fixing effect. When the printing flexo plate needs to be pasted, one end of the printing flexo plate is placed between the slider and the card block. Under the action of the first spring, the card block is pressed against the surface of the slider. Under the action of the anti-slider, the printing flexo plate will not be separated from between the card block and the slider. Under the action of the rubber sheet, the printing flexo plate can be fixed on the surface of the card block, thereby achieving the fixing effect. After the printing flexo plate is clamped, under the action of the second spring, the slider is pulled, thereby preventing the printing flexo plate from wrinkling on the surface of the printing roller. When the slider is pulled to a suitable position, the slider is fixed under the action of the card rod inserted into the round hole, thereby achieving the effect of positioning one end of the printing flexo plate.
[0015] Preferably, it also includes a replacement device arranged at one end of the winding roller close to the power system, the replacement device includes a round rod rotatably connected to the side of the power system, a protrusion is fixedly connected to the surface of the round rod, a circular groove is provided at one end of the winding roller close to the round rod, and a card groove is provided on the inner wall of the circular groove.
[0016] The effect achieved by the above components is that under the action of the convex block, the winding roller can rotate along with the rotation of the round rod, thereby avoiding the phenomenon that the winding roller does not rotate along with the round rod.
[0017] Preferably, a locking rod is inserted into the surface of the winding roller, and the locking rod is inserted into the interior of the round rod.
[0018] The effect achieved by the above components is that under the action of the locking rod, the winding roller can be fixed on the surface of the round rod.
[0019] Preferably, a third spring is sleeved on the surface of the locking rod, and two ends of the third spring are respectively fixedly connected to the winding roller and an end of the locking rod away from the winding roller.
[0020] The effect achieved by the above-mentioned components is: under the action of the third spring, the locking rod can be firmly inserted into the interior of the round rod. When the winding roller needs to be replaced, the locking rod is pulled outward to make the locking rod disengage from the round rod, and the winding roller is pulled outward to make the winding roller disengage from the round rod, and the new winding roller is installed on the surface of the round rod. Under the action of the protrusion, the winding roller can rotate with the rotation of the round rod, thereby avoiding the phenomenon that the winding roller does not rotate with the round rod. Under the action of the third spring, the locking rod can be firmly inserted into the interior of the round rod, thereby achieving the purpose of replacing the winding roller.
[0021] Compared with the prior art, the advantages and positive effects of the utility model are:
[0022] In the utility model, by arranging a positioning device, when it is necessary to paste the printing flexo plate, one end of the printing flexo plate is placed between the slider and the clamping block, and under the action of the first spring, the clamping block is pressed against the surface of the slider, and under the action of the anti-sliding block, the printing flexo plate will not be separated from between the clamping block and the slider, and under the action of the rubber plate, the printing flexo plate can be fixed on the surface of the clamping block, thereby achieving the fixing effect. When the printing flexo plate is clamped, under the action of the second spring, the slider is pulled, thereby preventing the printing flexo plate from wrinkling on the surface of the printing roller. When the slider is pulled to a suitable position, the slider is fixed under the action of the clamping rod inserted into the inside of the round hole, thereby achieving the effect of positioning one end of the printing flexo plate, thereby solving the problem that the printing flexo plate is easily skewed when being replaced. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 A three-dimensional structural schematic diagram of a rotary flexographic printing machine is proposed for the utility model;
[0024] Figure 2 A schematic diagram of a positioning device for a rotary flexographic printing press is provided for the utility model;
[0025] Figure 3 A partial schematic diagram of a positioning device for a rotary flexographic printing press is provided for the utility model;
[0026] Figure 4 The utility model provides a schematic diagram of a replacement device for a rotary flexographic printing press.
[0027] Legend: 1. Printing machine; 2. Positioning device; 21. Groove; 22. Fixing rod; 23. Sliding block; 24. Block; 25. First spring; 26. Second spring; 27. Round hole; 28. Blocking rod; 29. Anti-sliding block; 210. Rubber plate; 3. Changing device; 31. Round rod; 32. Bump; 33. Blocking rod; 34. Third spring; 4. Dryer; 5. Rotating roller; 6. Traction roller; 7. Winding roller; 8. Printing roller; 9. Power system. DETAILED DESCRIPTION
[0028] Embodiment 1:
[0029] like Figure 1-4 As shown, a rotary flexographic printing machine 1 comprises a printing machine 1, the upper top of the printing machine 1 is fixedly connected to a power system 9, a button is arranged on the side of the printing machine 1, the upper top of the power system 9 is fixedly connected to a blow dryer 4, the side of the power system 9 is fixedly connected to a printing roller 8, the surface of the printing roller 8 is arranged with a positioning device 2, the side of the printing machine 1 is rotatably connected to a rotating roller 5, the side of the power system 9 is rotatably connected to a traction roller 6, the side of the power system 9 is rotatably connected to an extrusion roller, the side of the power system 9 is arranged with a winding roller 7, and one end of the winding roller 7 is arranged with a replacement device 3. When the printing machine 1 is used, the paper to be printed is sleeved on the surface of the rotating roller 5, the paper is passed through the traction roller 6, and the paper passes between the extrusion roller and the printing roller 8, the power system 9 is started, and the traction roller 6, the printing roller 8 and the extrusion roller are rotated, so that the paper is printed with fonts, the printed paper is blown dry by the blow dryer 4, and the blown dry paper is wound around the surface of the winding roller 7 for winding, thereby completing the printing phenomenon.
[0030] Embodiment 2:
[0031] Reference Figure 2-3The positioning device 2 includes a groove 21 formed on the surface of the printing roller 8, a fixing rod 22 is fixedly connected to the inside of the groove 21, a slider 23 is slidably connected to the surface of the fixing rod 22, a telescopic rod is fixedly connected to the side of the slider 23, a block 24 is fixedly connected to a section of the telescopic rod away from the slider 23, a first spring 25 is sleeved on the surface of the telescopic rod, and the two ends of the first spring 25 are respectively fixedly connected to the block 24 and the slider 23. Under the action of the positioning device 2, the printing flexographic plate will not be skewed when it is pasted to the surface of the printing roller 8. Under the action of the first spring 25, the printing flexographic plate can be positioned between the slider 23 and the block 24, thereby avoiding the skew phenomenon. When the printing machine 1 is used, the paper to be printed is sleeved On the surface of the rotating roller 5, the paper passes through the traction roller 6, passes between the squeezing roller and the printing roller 8, and starts the power system 9, so that the traction roller 6, the printing roller 8 and the squeezing roller rotate, so that the paper is printed with fonts, and the printed paper is blown dry by the blow dryer 4, and the blown dry paper is wound on the surface of the winding roller 7 for winding, so that the printing is completed. The surface of the fixed rod 22 is sleeved with a second spring 26, and the two ends of the second spring 26 are respectively fixedly connected to the side of the slider 23 and the inner wall of the groove 21. Under the action of the second spring 26, the slider 23 can be pulled, so as to avoid the printing flexo plate from wrinkling on the surface of the printing roller 8. The side of the slider 23 is fixedly connected with a rectangular plate, and the surface of the rectangular plate A clamping rod 28 is inserted into the surface, and a circular hole 27 is opened on the inner wall of the groove 21. The clamping rod 28 is inserted into the inside of the circular hole 27. Under the action of the clamping rod 28 and the circular hole 27, the slider 23 can be fixed in a suitable position, avoiding the phenomenon of the slider 23 being pulled and shaken. The top of the slider 23 is fixedly connected with an anti-sliding block 29, and the anti-sliding block 29 is a rubber block. Under the action of the anti-sliding block 29, the printing flexographic plate will not be separated from between the clamping block 24 and the slider 23. The side of the clamping block 24 is fixedly connected with a rubber plate 210. The rubber plate 210 is arranged on the side of the clamping block 24 close to the slider 23. Under the action of the rubber plate 210, the printing flexographic plate can be fixed on the surface of the clamping block 24, thereby achieving the fixing effect. When the printing flexographic plate needs to be pasted, One end of the printing flexo plate is placed between the slider 23 and the block 24. Under the action of the first spring 25, the block 24 is pressed against the surface of the slider 23. Under the action of the anti-slider 29, the printing flexo plate will not be separated from the block 24 and the slider 23. Under the action of the rubber plate 210, the printing flexo plate can be fixed on the surface of the block 24, thereby achieving the fixing effect. When the printing flexo plate is clamped, under the action of the second spring 26, the slider 23 is pulled, thereby preventing the printing flexo plate from wrinkling on the surface of the printing roller 8. When the slider 23 is pulled to a suitable position, the slider 23 is fixed under the action of the clamping rod 28 inserted into the circular hole 27, thereby achieving the effect of positioning one end of the printing flexo plate.
[0032] Embodiment 3:
[0033] Reference Figure 4 The replacement device 3 includes a round rod 31 rotatably connected to the side of the power system 9, and a protrusion 32 is fixedly connected to the surface of the round rod 31. A round groove is provided at one end of the winding roller 7 close to the round rod 31, and a clamping groove is provided on the inner wall of the round groove. Under the action of the protrusion 32, the winding roller 7 can rotate along with the rotation of the round rod 31, thereby avoiding the phenomenon that the winding roller 7 does not rotate along with the round rod 31. A locking rod 33 is inserted on the surface of the winding roller 7, and the locking rod 33 is inserted into the inside of the round rod 31. Under the action of the locking rod 33, the winding roller 7 can be fixed on the surface of the round rod 31. A third spring 34 is sleeved on the surface of the locking rod 33. The two ends of the third spring 34 are respectively far away from the winding roller 7 and the locking rod 33. The third spring 34 is used to hold the locking rod 33 in place so that the locking rod 33 can be firmly inserted into the interior of the round rod 31. When the winding roller 7 needs to be replaced, the locking rod 33 is pulled outward to disengage the locking rod 33 from the round rod 31, and the winding roller 7 is pulled outward to disengage the winding roller 7 from the round rod 31. The new winding roller 7 is installed on the surface of the round rod 31. The winding roller 7 can rotate with the rotation of the round rod 31 under the action of the protrusion 32, thereby avoiding the phenomenon that the winding roller 7 does not rotate with the round rod 31. The third spring 34 is used to hold the locking rod 33 firmly inserted into the interior of the round rod 31, thereby achieving the purpose of replacing the winding roller 7.
[0034] Working principle: when it is necessary to use the rotary flexographic printing machine 1, when using the printing machine 1, the paper to be printed is put on the surface of the rotating roller 5, the paper is passed through the traction roller 6, and the paper is passed between the squeezing roller and the printing roller 8, and the power system 9 is started, so that the traction roller 6, the printing roller 8 and the squeezing roller are rotated, so that the paper is printed with fonts, and the printed paper is blown dry by the blow dryer 4, and the blown dry paper is wound on the surface of the winding roller 7 for winding, so that the printing is completed. When it is necessary to paste the printing flexographic plate, one end of the printing flexographic plate is placed between the slider 23 and the block 24. Under the action of the first spring 25, the block 24 is tightly attached to the surface of the slider 23. Under the action of the anti-sliding block 29, the printing flexographic plate will not be separated from the block 24 and the slider 23. Under the action of the rubber plate 210, the printing flexographic plate can be fixed on the surface of the block 24, so that the fixing is achieved. When the printing flexo plate is clamped, the slider 23 is pulled under the action of the second spring 26, thereby preventing the printing flexo plate from wrinkling on the surface of the printing roller 8. When the slider 23 is pulled to the appropriate position, the slider 23 is fixed under the action of the clamping rod 28 inserted into the inside of the round hole 27, thereby achieving the effect of positioning one end of the printing flexo plate. When the winding roller 7 needs to be replaced, the clamping rod 33 is pulled outward to make the clamping rod 33 disengage from the round rod 31, and the winding roller 7 is pulled outward to make the winding roller 7 disengage from the round rod 31, and the new winding roller 7 is installed on the surface of the round rod 31. Under the action of the protrusion 32, the winding roller 7 can rotate with the rotation of the round rod 31, thereby avoiding the phenomenon that the winding roller 7 does not rotate with the round rod 31. Under the action of the third spring 34, the clamping rod 33 can be firmly inserted into the inside of the round rod 31, thereby achieving the effect of replacing the winding roller 7.
Claims
1. A rotary flexographic printing press, comprising a printing press (1), a power system (9) arranged on the top of the printing press (1), a printing roller (8) and a winding roller (7) arranged on the side of the power system (9), characterized in that: A positioning device (2) is arranged on the side of the printing roller (8), and the positioning device (2) comprises a groove (21) formed on the surface of the printing roller (8), a fixing rod (22) arranged inside the groove (21), a slider (23) slidably mounted on the fixing rod (22), a telescopic rod arranged on one side of the slider (23), a clamping block (24) arranged at one end of the telescopic rod away from the slider (23), and a first spring (25) sleeved on the telescopic rod.
2. The rotary flexographic printing press according to claim 1, characterized in that: A second spring (26) is sleeved on the surface of the fixing rod (22), and two ends of the second spring (26) are respectively fixedly connected to the side surfaces of the sliding block (23) and the inner wall of the groove (21).
3. The rotary flexographic printing press according to claim 2, characterized in that: A rectangular plate is fixedly connected to the side of the slider (23), a clamping rod (28) is inserted into the surface of the rectangular plate, a circular hole (27) is opened on the inner wall of the groove (21), and the clamping rod (28) is inserted into the inside of the circular hole (27).
4. The rotary flexographic printing press according to claim 3, characterized in that: An anti-sliding block (29) is fixedly connected to the upper top of the sliding block (23), and the anti-sliding block (29) is a rubber block.
5. The rotary flexographic printing press according to claim 4, characterized in that: A rubber plate (210) is fixedly connected to the side of the clamping block (24), and the rubber plate (210) is arranged on a side of the clamping block (24) close to the sliding block (23).
6. The rotary flexographic printing press according to claim 5, characterized in that: The invention also comprises a replacement device (3) arranged at one end of the winding roller (7) close to the power system (9), the replacement device (3) comprising a round rod (31) rotatably connected to the side of the power system (9), a protrusion (32) being fixedly connected to the surface of the round rod (31), a round groove being provided at one end of the winding roller (7) close to the round rod (31), and a clamping groove being provided on the inner wall of the round groove.
7. The rotary flexographic printing press according to claim 6, characterized in that: A locking rod (33) is inserted into the surface of the winding roller (7), and the locking rod (33) is inserted into the interior of the round rod (31).
8. The rotary flexographic printing press according to claim 7, characterized in that: A third spring (34) is sleeved on the surface of the locking rod (33), and two ends of the third spring (34) are respectively fixedly connected to the winding roller (7) and one end of the locking rod (33) away from the winding roller (7).