Roller cleaning device for offset printing connecting line code spraying

Abstract

The utility model discloses a roller cleaning device for offset printing connecting line code spraying, which belongs to the technical field of offset printing equipment, and comprises an offset printing roller, an assembly frame and a cleaning plate, the assembly frame is positioned on one side of the offset printing roller and consists of two supporting plates which are symmetrically arranged, the cleaning plate is transversely arranged between the two supporting plates, and the cleaning plate is positioned on one side of the offset printing roller. The offset printing roller is provided with two supporting plates, the two ends of the cleaning plate are slidably connected with the two supporting plates correspondingly, and the two supporting plates are provided with a first driving part and a second driving part which can drive the cleaning plate to get close to the side edge of the offset printing roller correspondingly. The cleaning plate is made to be close to or away from the offset printing roller in an intermittent mode so that intermittent ink cleaning can be carried out on the offset printing roller, and ink on the cleaning plate is cleaned in the standby process that the cleaning plate scrapes off ink on the outer side surface of the offset printing roller.

Description

Technical Field

[0001] The utility model relates to the technical field of offset printing equipment, in particular to a roller cleaning device for offset printing line coding. Background Art

[0002] The QR code on the cigarette pack can help consumers verify the authenticity of the product and trace its source. By scanning the QR code, consumers can obtain detailed product information, including production date and batch number, to ensure that they are purchasing products from legitimate channels.

[0003] There are many production processes for cigarette boxes, among which the offset printing and in-line coding process is widely used in the production of QR codes on cigarette boxes. However, in the existing technology, after the offset printing cylinder contacts the cigarette box paper in a rolling state, part of the coding ink sticks to the offset printing cylinder because the QR code is not dry. As time goes by, the ink on the outer surface of the offset printing cylinder accumulates more and more. If the ink is not cleaned in time, the offset printing cylinder will be in contact with the subsequent cigarette box paper to be processed. The accumulated ink will be contaminated on the subsequent cigarette box paper to be processed, resulting in blurred QR code printing, and then causing the QR code on the cigarette box paper to fail. Utility Model Content

[0004] The embodiment of the utility model provides a roller cleaning device for offset printing in-line coding to solve the above-mentioned technical problems.

[0005] The embodiment of the present utility model adopts the following technical solution: it includes an offset printing roller, an assembly frame and a cleaning plate, the assembly frame is located on one side of the offset printing roller, the assembly frame is composed of two support plates arranged in a symmetrical state, the cleaning plate is placed horizontally between the two support plates, and the two ends of the cleaning plate are respectively slidably connected to the two support plates, and the two support plates are respectively provided with a first driving member and a second driving member that can drive the cleaning plate to approach the side of the offset printing roller.

[0006] Preferably, the upper portion of the side of the cleaning plate close to the offset cylinder is arranged as an inclined surface.

[0007] Preferably, the first driving member and the second driving member are symmetrically arranged on the two support plates, and the first driving member and the second driving member have the same structure. The first driving member and the second driving member both include a driving wheel, a guide member and a traction member. The driving wheel is located on the inner side of the corresponding support plate, and the center of the driving wheel is rotatably connected to the support plate. The guide member is located on the inner side of the driving wheel. The guide member is C-shaped as a whole, and a first extension end and a second extension end are respectively extended in a straight line at both ends of the guide member. The first extension end on the guide member is rotatably connected to the corresponding support plate. The traction member is located between the second extension end on the guide member and the cleaning plate, and the two ends of the traction member are respectively rotatably connected to the second extension end on the guide member and the cleaning plate.

[0008] Preferably, guide grooves that are interconnected are provided along the C-shaped track of the guide member and on the first extension end and the second extension end at both ends. A guide wheel that matches the width of the guide groove is rotatably provided on the driving wheel. The guide wheel extends from the inner side of the driving wheel into the guide groove of the guide member, and as the driving wheel rotates, the guide wheel can move in the guide grooves on the guide member and the first extension end and the second extension end.

[0009] Preferably, a transmission assembly is provided on the outer sides of the two support plates, each of the transmission assemblies includes a first transmission wheel, a second transmission wheel and a transmission belt, the first transmission wheel is located on the outer side of the corresponding support plate, and the first transmission wheel and the driving wheel on the support plate are in a concentric corresponding state, a connecting shaft is fixedly provided at the center of the first transmission wheel, the connecting shaft passes through the support plate and is fixedly connected to the center of the corresponding driving wheel, and the connecting shaft is rotatably connected to the support plate, the second transmission wheel is located at the outer end of the offset cylinder, and the second transmission wheel is fixedly connected to the center of the outer end of the offset cylinder through the connecting shaft, so that the second transmission wheel can produce a synchronous rotation state with the rolling of the offset cylinder, and the transmission belt is sleeved on the outer sides of the first transmission wheel and the second transmission wheel.

[0010] Preferably, a fixed plate is provided between the two support plates, the fixed plate is located above the cleaning plate, and the two ends of the fixed plate are fixedly connected to the two support plates respectively, and a driving device with a linear drive track is installed below the fixed plate, the driving device is a linear slide module, and a scraper is fixedly provided on the output end of the driving device, and a detachable silicone scraper strip is provided at the bottom of the scraper, and the silicone scraper strip is in contact with the top of the cleaning plate;

[0011] An adsorption device is provided on the output end of the driving device and on one side of the scraper. The adsorption port of the adsorption device faces the upper part of the cleaning plate, and the adsorption device is controlled by a control unit.

[0012] At least one of the above technical solutions adopted in the embodiment of the present utility model can achieve the following beneficial effects:

[0013] First, the first driving member and the second driving member in the present application can jointly drive the cleaning plate to move closer and closer, and clean the ink accumulated on the outer surface of the offset cylinder through the cleaning plate.

[0014] Secondly, the first drive member and the second drive member can be controlled by the coordinated operation of the transmission assembly and the offset cylinder, so that the cleaning plate is intermittently moved close to or away from the offset cylinder, thereby performing intermittent ink cleaning on the offset cylinder, and cleaning the ink on the cleaning plate during the standby process of scraping the ink on the outer surface of the offset cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model Figure 2 ;

[0018] Figure 3 This is a structural diagram of the first driving member and the transmission assembly in the present utility model;

[0019] Figure 4 This is a schematic structural diagram of the first state of the first driving member in the present utility model;

[0020] Figure 5 This is a schematic diagram of the second state structure of the first driving member in the present utility model;

[0021] Figure 6 It is a structural schematic diagram of the scraper and adsorption equipment in this utility model.

[0022] Reference numerals

[0023] Offset printing cylinder 1, assembly frame 2, support plate 21, fixing plate 22, driving device 23, scraper 24, silicone scraper 25, adsorption device 26, cleaning plate 3, first driving member 4, driving wheel 41, guide member 42, traction member 43, first extension end 44, second extension end 45, guide groove 46, guide wheel 47, second driving member 5, transmission assembly 6, first transmission wheel 61, second transmission wheel 62, transmission belt 63, and connecting shaft 64. DETAILED DESCRIPTION

[0024] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will provide a clear and complete description of the technical solutions of the present invention in conjunction with specific embodiments of the present invention and the corresponding drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0025] The technical solutions provided by various embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0026] The embodiment of the utility model provides a roller cleaning device for offset printing line coding, comprising an offset printing roller 1, an assembly frame 2 and a cleaning plate 3;

[0027] Refer to the attached Figure 1 and 2 As shown, the assembly frame 2 is located on one side of the blanket cylinder 1. The assembly frame 2 is composed of two symmetrically arranged support plates 21. The cleaning plate 3 is placed horizontally between the two support plates 21, and the two ends of the cleaning plate 3 are respectively slidably connected to the two support plates 21. The two support plates 21 are respectively provided with a first driving member 4 and a second driving member 5 that can drive the cleaning plate 3 to approach the side of the blanket cylinder 1.

[0028] Taking the rolling direction of the offset cylinder 1 toward the cleaning plate 3 as an example, after the offset cylinder 1 completes a certain number of offset printings on the cigarette box paper, the first driving member 4 and the second driving member 5 on the assembly frame 2 can jointly drive the cleaning plate 3 to translate and approach the outer surface of the offset cylinder 1 until the side of the cleaning plate 3 is close to the outer surface of the offset cylinder 1. As the offset cylinder 1 continues to roll, the cleaning plate 3 close to it will drive away the ink accumulated on the outer surface of the offset cylinder 1, and along the rolling trajectory of the offset cylinder 1, the accumulated ink will be gradually scraped by the cleaning plate 3 to the upper part of the cleaning plate 3, so that the ink accumulated on the offset cylinder 1 can be cleaned.

[0029] In a further preferred embodiment, the upper portion of the side of the cleaning plate 3 close to the offset cylinder 1 is provided with an inclined surface; in order to allow the ink accumulated on the offset cylinder 1 to be smoothly transferred to the upper portion of the cleaning plate 3, the upper portion of the side of the cleaning plate 3 close to the offset cylinder 1 is provided with an inclined surface, so that the ink accumulated on the outer surface of the offset cylinder 1 can be more smoothly transferred to the upper portion of the cleaning plate 3 through the inclined surface when it is close to the outer edge of the cleaning plate 3.

[0030] In a further preferred embodiment, referring to the attached Figures 3 to 5As shown, the first driving member 4 and the second driving member 5 are symmetrically arranged on the two support plates 21, and the first driving member 4 and the second driving member 5 have the same structure. The first driving member 4 and the second driving member 5 both include a driving wheel 41, a guide member 42 and a traction member 43. The driving wheel 41 is located on the inner side of the corresponding support plate 21, and the center of the driving wheel 41 is rotatably connected to the support plate 21. The guide member 42 is located on the inner side of the driving wheel 41. The guide member 42 is C-shaped as a whole, and a first extension end 44 and a second extension end 45 are respectively extended in a straight line at both ends of the guide member 42. The first extension end 44 on the guide member 42 is rotatably connected to the corresponding support plate 21. The traction member 43 is located between the second extension end 45 on the guide member 42 and the cleaning plate 3, and the two ends of the traction member 43 are rotatably connected to the second extension end 45 on the guide 42 and the cleaning plate 3 respectively.

[0031] Guide grooves 46 that are interconnected are provided along the C-shaped track of the guide member 42 and on the first extension end 44 and the second extension end 45 at both ends. A guide wheel 47 that matches the width of the guide groove 46 is rotatably provided on the driving wheel 41. The guide wheel 47 extends from the inner side of the driving wheel 41 to the guide groove 46 of the guide member 42, and as the driving wheel 41 rotates, the guide wheel 47 can move in the guide grooves 46 on the guide member 42 and the first extension end 44 and the second extension end 45.

[0032] In a further preferred embodiment, a transmission assembly 6 is provided on the outer side of the two support plates 21, and each transmission assembly 6 includes a first transmission wheel 61, a second transmission wheel 62 and a transmission belt 63. The first transmission wheel 61 is located on the outer side of the corresponding support plate 21, and the first transmission wheel 61 is in a concentric corresponding state with the driving wheel 41 on the support plate 21. A connecting shaft 64 is fixedly provided at the center of the first transmission wheel 61. The connecting shaft 64 passes through the support plate 21 and is fixedly connected to the center of the corresponding driving wheel 41, and the connecting shaft 64 is rotatably connected to the support plate 21. The second transmission wheel 62 is located at the outer end of the blanket cylinder 1, and the second transmission wheel 62 is fixedly connected to the center of the outer end of the blanket cylinder 1 through the connecting shaft 64, so that the second transmission wheel 62 can rotate synchronously with the rolling of the blanket cylinder 1, and the transmission belt 63 is sleeved on the outer sides of the first transmission wheel 61 and the second transmission wheel 62;

[0033] In the present patent application, a transmission assembly 6 is provided, which enables the first driving member 4 and the second driving member 5 to form a linkage with the rolling blanket cylinder 1;

[0034] When the blanket cylinder 1 rolls, the second transmission wheels 62 at both ends of the blanket cylinder 1 rotate synchronously, and the first transmission wheels 61 and the second transmission wheels 62 are driven to rotate synchronously by the transmission belt 63 sleeved on the outer sides of the first transmission wheels 61 and the second transmission wheels. Subsequently, the drive wheels 41 corresponding to each first transmission wheel 61 concentrically rotate.

[0035] At this time, refer to the attached Figure 4 and 5 As shown, the guide wheel 47 on the driving wheel 41 will move around the center of the driving wheel 41. When the driving wheel 41 rotates clockwise, the guide wheel 47 will move in the guide groove 46 of the second extension end 45 toward the guide member 42 and the guide groove 46 of the first extension end 44. During the movement, the guide wheel 47 will pull the guide member 42 and the corresponding first extension end 44 in the guide groove 46. Since the first extension end 44 on the guide member 42 is rotatably connected to the support plate 21, The entire guide member 42 and the first extension end 44 and the second extension end 45 are inclined toward the blanket cylinder 1 with the rotational connection portion of the first extension end 44 and the support plate 21 as the axis, and the second extension end 45 below the guide member 42 pushes the traction member 43, so that the traction member 43 pushes the cleaning plate 3, which is slidably connected to the two support plates 21, toward the blanket cylinder 1 until the side edge of the cleaning plate 3 is close to the outer surface of the blanket cylinder 1 to scrape off the accumulated ink;

[0036] As the blanket cylinder 1 continues to roll and the transmission assembly 6 drives the driving wheel 41, the driving wheel 41 will continue to rotate. When the guide wheel 47 moves from the upper right area of ​​the driving wheel 41 to the upper left and left areas, the guide wheel 47 will retreat in the guide groove 46 of the first extension end 44 and move into the guide groove 46 of the guide member 42. At this time, the guide wheel 47 will pull the guide member 42 and the first extension end 44 and the second extension end 45, so that the entire guide member 42 and the first extension end 44 and the second extension end 45 are tilted away from the blanket cylinder 1, and the second extension end 45 drives the cleaning plate 3 away from the blanket cylinder 1. In this way, the guide wheel 47 on the driving wheel 41 moves back and forth in the guide groove 46 on the guide member 42 and the first extension end 44 and the second extension end 45, which can tilt the entire guide member 42 and the first extension end 44 and the second extension end 45, and drive the cleaning plate 3 to approach or move away from the blanket cylinder 1 in an intermittent manner, thereby performing intermittent ink cleaning on the blanket cylinder 1.

[0037] In a further preferred embodiment, referring to the attached Figure 5 and 6As shown, a fixed plate 22 is provided between the two support plates 21, and the fixed plate 22 is located above the cleaning plate 3, and the two ends of the fixed plate 22 are fixedly connected to the two support plates 21 respectively. A driving device 23 with a linear drive track is assembled below the fixed plate 22, and the driving device 23 is a linear slide module. A scraper 24 is fixedly provided on the output end of the driving device 23, and a detachable silicone scraper 25 is provided at the bottom of the scraper 24. The silicone scraper 25 is in contact with the top of the cleaning plate 3;

[0038] An adsorption device 26 is provided at the output end of the driving device 23 and on one side of the scraper 24. The adsorption port of the adsorption device 26 faces the upper portion of the cleaning plate 3, and the adsorption device 26 is controlled by a control unit.

[0039] During the process of cleaning the ink accumulated on the outer surface of the blanket cylinder 1 by the cleaning plate 3, the ink on the cleaning plate 3 will also increase. Therefore, in the present patent application, the cleaning plate 3 and the adsorption device 26 are designed. In combination with the first driving member 4 and the second driving member 5, the cleaning plate 3 is driven so that the cleaning plate 3 can switch its position close to the blanket cylinder 1 and away from the blanket cylinder 1. The ink on the cleaning plate 3 is cleaned during the standby process of the cleaning plate 3 scraping the ink on the outer surface of the blanket cylinder 1.

[0040] During use, the control unit can be set with operating instructions. When the cleaning plate 3 is away from the offset printing cylinder 1, the driving device 23 starts to operate and drives the scraper 24 to move from one end to the other end on the cleaning plate 3, and the silicone scraper 25 set at the bottom of the cleaning plate 3 is used to scrape off the ink accumulated on the surface above the cleaning plate 3. During the scraping process, the adsorption device 26 can be operated to absorb the ink on the cleaning plate 3, and then the cleaning plate 3 is cleaned, so as to avoid excessive accumulation of the scraped ink on the cleaning plate 3 and affect the cleaning efficiency.

[0041] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of the claims of the present invention.

Claims

1. A roller cleaning device for offset printing in-line coding, comprising an offset printing roller (1), characterized in that: Also included is an assembly frame (2) and a cleaning plate (3); The assembly frame (2) is located on one side of the offset printing cylinder (1), and the assembly frame (2) is composed of two support plates (21) arranged in a symmetrical state; The cleaning plate (3) is placed horizontally between the two support plates (21), and the two ends of the cleaning plate (3) are respectively connected to the two support plates (21) in a sliding manner; A first driving member (4) and a second driving member (5) are respectively provided on the two support plates (21) for driving the cleaning plate (3) to approach the side of the offset printing cylinder (1).

2. The roller cleaning device for offset printing in-line coding according to claim 1 is characterized in that: The upper portion of the side of the cleaning plate (3) close to the offset printing cylinder (1) is arranged as an inclined surface.

3. The roller cleaning device for offset printing in-line coding according to claim 1, characterized in that: The first driving member (4) and the second driving member (5) are symmetrically arranged on the two support plates (21), and the first driving member (4) and the second driving member (5) have the same structure; The first driving member (4) and the second driving member (5) both include a driving wheel (41), a guide member (42) and a traction member (43); The driving wheel (41) is located on the inner side of the corresponding support plate (21), and the center of the driving wheel (41) is rotatably connected to the support plate (21); The guide member (42) is located inside the driving wheel (41), and the guide member (42) is C-shaped as a whole, and a first extension end (44) and a second extension end (45) are respectively provided at both ends of the guide member (42) in a straight line extending manner, and the first extension end (44) on the guide member (42) is rotatably connected to the corresponding support plate (21); The traction member (43) is located between the second extension end (45) on the guide member (42) and the cleaning plate (3), and the two ends of the traction member (43) are respectively rotatably connected to the second extension end (45) on the guide member (42) and the cleaning plate (3).

4. The roller cleaning device for offset printing in-line coding according to claim 3 is characterized in that: Guide grooves (46) that are interconnected are provided along the C-shaped track of the guide member (42) and on the first extension end (44) and the second extension end (45) at both ends. A guide wheel (47) that matches the width of the guide groove (46) is rotatably provided on the driving wheel (41). The guide wheel (47) extends from the inner side of the driving wheel (41) into the guide groove (46) of the guide member (42). As the driving wheel (41) rotates, the guide wheel (47) can move within the guide grooves (46) on the guide member (42) and the first extension end (44) and the second extension end (45).

5. The roller cleaning device for offset printing in-line coding according to claim 3, characterized in that: A transmission assembly (6) is provided on the outer sides of the two support plates (21), and each transmission assembly (6) comprises a first transmission wheel (61), a second transmission wheel (62) and a transmission belt (63); The first transmission wheel (61) is located outside the corresponding support plate (21), and the first transmission wheel (61) and the driving wheel (41) on the support plate (21) are in a concentric corresponding state. A connecting shaft (64) is fixedly provided at the center of the first transmission wheel (61). The connecting shaft (64) passes through the support plate (21) and is fixedly connected to the center of the corresponding driving wheel (41), and the connecting shaft (64) is rotatably connected to the support plate (21). The second transmission wheel (62) is located at the outer end of the offset cylinder (1), and the second transmission wheel (62) is fixedly connected to the center of the outer end of the offset cylinder (1) through a connecting shaft (64), so that the second transmission wheel (62) can rotate synchronously with the rolling of the offset cylinder (1); The transmission belt (63) is sleeved on the outside of the first transmission wheel (61) and the second transmission wheel (62).

6. The roller cleaning device for offset printing in-line coding according to claim 1, characterized in that: A fixing plate (22) is provided between the two supporting plates (21), the fixing plate (22) is located above the cleaning plate (3), and both ends of the fixing plate (22) are fixedly connected to the two supporting plates (21) respectively; A driving device (23) with a linear driving track is assembled below the fixed plate (22), and the driving device (23) is a linear slide module. A scraper (24) is fixedly arranged on the output end of the driving device (23), and a detachable silicone scraper (25) is arranged at the bottom of the scraper (24), and the silicone scraper (25) is in contact with the top of the cleaning plate (3).

7. The roller cleaning device for offset printing in-line coding according to claim 6, characterized in that: An adsorption device (26) is provided at the output end of the driving device (23) and on one side of the scraper (24). The adsorption port of the adsorption device (26) faces the upper part of the cleaning plate (3), and the adsorption device (26) is controlled by a control unit.

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