Intermittent flexographic printing device

Abstract

The utility model discloses an intermittent flexographic printing device which comprises a flexographic printing base and petal type pressure adjusting pieces, the petal type pressure adjusting pieces are arranged on the inner sides of the two side walls of the flexographic printing base respectively, an impressing roller and an anilox roller are rotationally installed on the side walls of the flexographic printing base, and the petal type pressure adjusting pieces are arranged on the inner sides of the two side walls of the flexographic printing base respectively. A plate cylinder shoulder iron is arranged in a petal groove of the petal type pressure adjusting piece in a supporting mode, an integrated flexible printing plate roller is rotationally installed on the plate cylinder shoulder iron, a plate roller gear is installed on the end side of the integrated flexible printing plate roller, and a printing gear is installed on the impressing roller. The flexible printing device has the beneficial effects that compared with a traditional sleeve printing plate roller, the jumping error is reduced, the 7-shaped position distribution of the impressing roller, the integrated flexible printing plate roller and the anilox roller is introduced into the intermittent flexible printing device, so that the overall structure is more compact, and the production efficiency is improved. The petal type pressure adjusting piece bears the integrated flexographic printing plate roller to be matched with the plate roller pressing assembly to adjust the overall pressure, so that the pressure in the flexographic printing process is adjustable and can be accurately controlled.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of soft printing, in particular to an intermittent soft printing device. BACKGROUND

[0002] Flexographic printing is a method of printing using a flexible printing plate to transfer ink through an anilox roll, which is a kind of relief printing process, and the intermittent soft printing machine is widely loved by practitioners in the industry because of its flexible control, easy plate making and relatively low cost.

[0003] The printing plate roll of the existing intermittent soft printing machine is mostly of a sleeve type structure. When the pressure of the traditional intermittent soft printing is adjusted, the position of the sleeve type plate roll is fixed and immovable, and the pressure between the plate roll and the anilox roll and the impression roll is adjusted by changing the positions of the anilox roll and the impression roll. However, the jumping error is large during the printing process, which leads to low control precision of the soft printing roll pressure. UTILITY MODEL CONTENT

[0004] The utility model discloses a kind of intermittent soft printing devices to solve the above problems.

[0005] The utility model achieves the above-mentioned purposes by the following technical solutions:

[0006] An intermittent soft printing device includes a soft printing seat and a petal type pressure adjusting part, the petal type pressure adjusting part is provided with two groups, and is respectively arranged in the inner side of the two side walls of the soft printing seat, a pressure printing roll and an anilox roll are rotatably installed on the side wall of the soft printing seat, a printing plate cylinder shoulder iron is supported and placed in the petal groove of the petal type pressure adjusting part, an integrated soft printing plate roll is rotatably installed on the printing plate cylinder shoulder iron, a plate roll gear is installed on the end side of the integrated soft printing plate roll, a printing gear is installed on the pressure printing roll, the printing gear and the plate roll gear are meshed and connected together, an ink fountain is installed on the inner side wall of the soft printing seat through a bucket frame, an ink fountain roll is rotatably installed in the ink fountain, the ink fountain roll is pressed together with the surface of the anilox roll, a petal end side top presser is fixedly installed on the soft printing seat, the two end sides of the petal type pressure adjusting part are pressed onto the petal end side top presser, an adjusting column of the petal type pressure adjusting part extends to the outside of the soft printing seat and is installed with an adjusting arm, an adjusting cylinder is fixedly installed on the soft printing seat, an adjusting pressure block is installed at the end of the piston rod of the adjusting cylinder, the adjusting pressure block is pressed to one side of the adjusting arm, a pressing groove is arranged at the top of the side wall of the soft printing seat, and a plate roll pressing assembly is installed on the pressing groove.

[0007] Further, the pressure printing roll, the integrated soft printing plate roll and the anilox roll are distributed in a 7-shaped position.

[0008] Further, the impression roller is composed of an impression roller body and body end shafts installed on both sides of the impression roller body, the end of the body end shaft on one side of the impression roller body is rotatably installed with an end disc through the end bearing, the body end shaft on the other side of the impression roller body is connected with a printing motor, and the printing motor is fixed to the soft printing seat.

[0009] Further, the petal end side top pressing device is composed of a top pressing groove block and top pressing grooves arranged on the top pressing groove block, a top pressing bolt is threadedly connected in the top pressing groove, and a fixing hole is arranged on the top pressing groove block.

[0010] Further, the plate roller pressing assembly is composed of a clamping groove frame and a pushing clamping groove piece, the bottom of the clamping groove frame is provided with a pushing groove, the pushing clamping groove piece is arranged in the pushing groove, the end side of the pushing clamping groove piece is provided with a pressing turning groove, a pressing block is rotatably installed in the pressing turning groove through a pressing block shaft, a movable limiting hole is arranged on the pressing block, a movable limiting shaft is inserted into the movable limiting hole, and both ends of the movable limiting shaft are fixed to the groove wall of the pressing turning groove.

[0011] Further, the outside of the printing plate cylinder shoulder iron is provided with a pressing disc surface groove, and the pressing head is arranged in the pressing disc surface groove.

[0012] Further, one side of the pushing clamping groove piece is provided with a pushing threaded hole, a lead screw is threadedly connected in the pushing threaded hole, one end of the lead screw extends to the outside of the pushing threaded hole and is connected with a lead screw motor, the lead screw motor is fixed to the clamping groove frame, and the clamping groove frame is fixed to the soft printing seat through a screw.

[0013] Further, a screen roller motor is installed on the soft printing seat, and one side roller shaft of the screen roller is connected with the screen roller motor.

[0014] Further, a bottom frame is fixedly installed at the bottom of the soft printing seat.

[0015] Further, a limiting cylinder is rotatably installed on the inner side wall of the soft printing seat, and the limiting cylinder is located below the ink duct.

[0016] Beneficial effects are that the intermittent soft printing device reduces the jumping error compared with the traditional sleeve printing plate roller, the 7-shaped position distribution of the impression roller, the integrated soft printing plate roller and the screen roller is introduced into the intermittent soft printing device, so that the overall structure is more compact, the petal type pressure adjusting piece bears the integrated soft printing plate roller, the overall pressure is adjusted through the plate roller pressing assembly, the pressure in the soft printing process is adjustable and can be accurately controlled. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1is a structure diagram of the intermittent soft printing device of the utility model;

[0018] Figure 2 is a petal type pressure adjusting part driving schematic view of the intermittent soft printing device of the utility model;

[0019] Figure 3 is a anilox roller, impression roller and ink fountain roller structure installation view of the intermittent soft printing device of the utility model;

[0020] Figure 4 is a plate roller pressure assembly structure view of the intermittent soft printing device of the utility model;

[0021] Figure 5 is an internal component view of the top pressing groove of the intermittent soft printing device of the utility model;

[0022] Figure 6 is a petal type pressure adjusting part structure view of the intermittent soft printing device of the utility model;

[0023] Figure 7 is an impression roller structure view of the intermittent soft printing device of the utility model;

[0024] Figure 8 is a petal end side presser structure view of the intermittent soft printing device of the utility model.

[0025] The figure mark is explained as follows:

[0026] 1, soft printing seat, 2, impression roller, 201, impression roller main body, 202, main body end shaft, 203, end bearing, 204, end disc, 3, integral soft printing plate roller, 4, anilox roller, 5, ink fountain roller, 6, ink fountain, 7, ink fountain frame, 8, scraper assembly, 9, plate roller gear, 10, printing gear, 11, anilox roller motor, 12, printing motor, 13, base frame, 14, side cover, 15, printing plate cylinder shoulder iron, 16, petal type pressure adjusting part, 17, adjusting arm, 18, adjusting cylinder, 19, plate roller pressure assembly, 20, pressure groove, 21, screw motor, 22, clamping groove frame, 23, pressure head, 24, pressure block, 25, pressure block pivot, 26, advancing clamping groove part, 27, advancing screw hole, 28, movable limit hole, 29, movable limit shaft, 30, limit cylinder, 31, petal end side presser, 32, top pressing groove block, 33, top pressing bolt, 34, fixed hole, 35, pressure disc surface groove. DETAILED DESCRIPTION

[0027] The utility model is further explained in connection with the drawings as follows:

[0028] As Figures 1-8As shown, an intermittent flexographic printing device consists of a flexographic printing base 1 and a petal-shaped pressure regulating element 16.

[0029] Two sets of petal-shaped pressure adjusting components 16 are respectively placed inside the two side walls of the flexographic printing base 1. The impression roller 2 and the anilox roller 4 are rotatably mounted on the side walls of the flexographic printing base 1. The printing plate cylinder shoulder iron 15 is supported and placed in the petal groove of the petal-shaped pressure adjusting component 16. An integrated flexographic printing plate roller 3 is rotatably mounted on the printing plate cylinder shoulder iron 15. The printing plate cylinder shoulder iron 15 can drive the integrated flexographic printing plate roller 3 to move radially up and down, thereby changing the distance gap between the integrated flexographic printing plate roller 3 and the impression roller 2, so as to adjust the pressure and the material thickness specification. The printing plate cylinder shoulder iron 15 and the integrated flexographic printing plate roller 3 can be picked up and put down as a whole, which is convenient to operate. The end side of the integrated flexographic printing plate roller 3 is equipped with a plate roller gear 9, and the impression roller 2 is equipped with a printing gear 10. The printing gear 10 is meshed with the plate roller gear 9 to realize the transmission between the two and flexographic printing the material between them.

[0030] The integrated flexographic printing roller 3 is a single-piece structure, replacing the traditional shaft plus sleeve mode. The impression roller 2, the integrated flexographic printing roller 3 and the anilox roller 4 are arranged in a 7-shaped position, which can reduce the roller pressure stroke of each roller group in the intermittent flexographic printing device, making the structure more compact and facilitating the roller pressure of flexographic materials. The integrated flexographic printing roller 3 is a single-piece structure, which has higher precision than the traditional sleeve-type printing roller.

[0031] The inner wall of the flexographic printing base 1 is equipped with an ink fountain 6 via a frame 7. An ink fountain roller 5 is rotatably installed inside the ink fountain 6. The surfaces of the ink fountain roller 5 and the anilox roller 4 are pressed together, so that they can be driven to rotate synchronously through friction.

[0032] The petal-shaped pressure regulating component 16 is a commonly used pressure regulating component in this industry. It is equipped with an adjusting column. A petal-end side pressurer 31 is fixedly installed on the flexographic printing base 1. Both ends of the petal-shaped pressure regulating component 16 are pressed onto the petal-end side pressurer 31. The end of the adjusting column of the petal-shaped pressure regulating component 16 extends to the outside of the flexographic printing base 1 and is equipped with an adjusting arm 17. An adjusting cylinder 18 is fixedly installed on the flexographic printing base 1. An adjusting pressure block is installed at the end of the piston rod of the adjusting cylinder 18. The adjusting pressure block is pressed onto one side of the adjusting arm 17 and drives it to rotate, thereby realizing the pressure regulation of the petal-shaped pressure regulating component 16.

[0033] The side wall top of the soft printing seat 1 is provided with a pressing groove 20, and a plate roller pressing assembly 19 is installed on the pressing groove 20, which is used for pressing the printing plate cylinder shoulder iron 15, realizing the downward movement of the printing plate cylinder shoulder iron 15 and the integrated soft printing plate roller 3. Through the change of the position of the pressing block 24 on the plate roller pressing assembly 19, the petal end side adjustment of the petal end side pressing device 31 and the driving action of the adjusting cylinder 18, the distance between the integrated soft printing plate roller 3 and the impression roller 2 is changed, and finally the adjustment purpose is achieved. When adjusting the pressure or distance between the printing plate cylinder and the impression cylinder, the pressure between the integrated soft printing plate roller 3 and the anilox roller 4 will also be slightly affected, but in actual use, these changes are very slight, and basically do not affect the normal transmission of the anilox roller.

[0034] As shown in Figures 1-8 The utility model discloses the following more optimized specific structure:

[0035] The impression roller 2 is composed of an impression roller main body 201 and main body end shafts 202 installed on both sides of the impression roller main body 201. The end disc 204 is rotatably installed at the end of the main body end shaft 202 on one side of the impression roller main body 201 through the end bearing 203, which facilitates the overall disassembly.

[0036] The printing motor 12 is connected to the main body end shaft 202 on the other side of the impression roller main body 201 and is fixed to the soft printing seat 1.

[0037] The petal end side pressing device 31 is composed of a pressing groove block 32 and a pressing groove arranged on the pressing groove block 32. The pressing screw 33 is screwed in the pressing groove. The end of the pressing screw 33 is used to support the petal type pressure adjusting part 16 in the pressing groove, so that the two end sides are adjusted. The fixed hole 34 is arranged on the pressing groove block 32, which is convenient for being fixed to the soft printing seat 1 by screws.

[0038] The plate roller pressing assembly 19 is composed of a clamping groove frame 22 and a pushing clamping groove part 26. The bottom of the clamping groove frame 22 is provided with a pushing groove, and the pushing clamping groove part 26 is arranged in the pushing groove. The end side of the pushing clamping groove part 26 is provided with a pressing rotating groove. The pressing block 24 is rotatably installed in the pressing rotating groove through the pressing block rotating shaft 25. The movable limiting hole 28 is arranged on the pressing block 24. The movable limiting shaft 29 is inserted into the movable limiting hole 28. The two ends of the movable limiting shaft 29 are fixed to the groove wall of the pressing rotating groove. The movable diameter of the movable limiting hole 28 is greater than the shaft diameter of the movable limiting shaft 29. The pressing head 23 is installed on the pressing block 24.

[0039] The outer side of the printing plate cylinder shoulder 15 is provided with a pressing plate groove 35. The pressing head 23 is pressed into the pressing plate groove 35. By adjusting the pressing block 24 and the pressing head 23, the printing plate cylinder shoulder 15 can be pressed firmly, or it can be loosened so that the printing plate cylinder shoulder 15 and the integrated flexographic printing plate roller 3 can be taken out as a whole for replacement and maintenance.

[0040] The push clamping slot 26 has a push threaded hole 27 on one side, and a lead screw (not shown) is screwed into the push threaded hole 27. One end of the lead screw extends to the outside of the push threaded hole 27 and is connected to a lead screw motor 21. The lead screw motor 21 is fixed to the clamping slot frame 22, and the clamping slot frame 22 is fixed to the flexographic printing seat 1 by screws.

[0041] An anilox roller motor 11 is installed on the flexographic printing press 1, and one side of the anilox roller 4 is connected to the anilox roller motor 11.

[0042] A base frame 13 is fixedly installed at the bottom of the flexographic printing press 1. The base frame 13 is convenient for mounting a winding and unwinding device. After the material is unwound by the material unwinding device, it passes through the flexographic printing components on the flexographic printing press 1, passes through the UV drying system, and is then wound up. This structure is a general supporting equipment for flexographic printing machines and will not be described in detail here.

[0043] A limiting roller 30 is rotatably installed on the inner wall of the flexographic printing base 1. The limiting roller 30 is located below the ink fountain 6 to facilitate the limiting of the flexographic printing material.

[0044] like Figures 1-8 The intermittent flexographic printing device shown reduces runout error through the integrated design of the flexographic printing roller. Compared with the traditional sleeve printing roller, it has higher precision. Furthermore, the introduction of a 7-shaped position distribution of the impression roller 2, the integrated flexographic printing roller 3, and the anilox roller 4 in the intermittent flexographic printing device makes the overall structure more compact. This facilitates the passage of flexographic material between the impression roller 2 and the integrated flexographic printing roller 3. The integrated flexographic printing roller 3 is supported by a petal-shaped pressure adjustment component and cooperates with the roller clamping assembly 19, making the pressure of the integrated flexographic printing roller 3 adjustable and precisely controlled during the flexographic printing process.

[0045] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of this utility model as claimed.

Claims

1. An intermittent flexographic printing apparatus characterized by: The utility model provides a flexible printing seat and petal pressure regulating spare, the petal pressure regulating spare is equipped with two groups, is placed in the inside of two side walls of the flexible printing seat respectively, the side wall of flexible printing seat rotates and installs the impression roller and anilox roller, the petal pressure regulating spare's petal groove supports and places the plate cylinder shoulder iron, the plate cylinder shoulder iron rotates and installs the integral type flexible printing plate roller on, the integral type flexible printing plate roller's end side installs the plate roller gear, the impression roller installs the printing gear, the printing gear is engaged together with plate roller gear, the inside wall of flexible printing seat is equipped with the ink fountain through the bucket frame, the ink fountain rotates and installs the ink fountain roller in, the ink fountain roller is pressed together with the surface pressure of anilox roller, the flexible printing seat is fixedly installed with petal end side top pressure ware, the both ends of petal pressure regulating spare are pressed to the petal end side top pressure ware, the regulating column end of petal pressure regulating spare extends to the outside of flexible printing seat and is installed with regulating arm, the regulating cylinder is fixedly installed on the flexible printing seat, the piston rod end of regulating cylinder is installed with regulating pressure block, regulating pressure block is pressed to one side of regulating arm, the side wall top of flexible printing seat is equipped with the compression groove, and the plate roller compression assembly is installed on the compression groove.

2. An intermittent flexographic printing apparatus according to claim 1, characterized in that: The impression roller, the integral type flexible printing plate roller and the anilox roller are in 7-shaped position distribution.

3. An intermittent flexographic printing apparatus as claimed in claim 1, wherein: The impression roller is composed of an impression roller body and body end shafts installed on both sides of the impression roller body, the end of the body end shaft on one side of the impression roller body is rotatably installed with an end disc through an end bearing, the body end shaft on the other side of the impression roller body is connected with a printing motor, and the printing motor is fixed to the flexible printing seat.

4. An intermittent flexographic printing apparatus as claimed in claim 1, characterized in that: The petal end side top pressure ware is composed of a top pressure groove block and a top pressure groove arranged on the top pressure groove block, a top pressure bolt is threadedly connected in the top pressure groove, and the top pressure groove block is provided with a fixing hole.

5. An intermittent flexographic printing apparatus as claimed in claim 1, wherein: The plate roller compression assembly is composed of a clamping groove frame and a pushing clamping groove piece, the bottom of the clamping groove frame is provided with a pushing groove, the pushing clamping groove piece is arranged in the pushing groove, the end side of the pushing clamping groove piece is provided with a compression turning groove, a compression block is rotatably installed in the compression turning groove through a compression block shaft, the compression block is provided with a movable limiting hole, a movable limiting shaft is inserted in the movable limiting hole, and the two ends of the movable limiting shaft are fixed to the groove wall of the compression turning groove.

6. An intermittent flexographic printing apparatus according to claim 5, wherein: A compression head is installed on the compression block, the outside surface of the plate cylinder shoulder iron is provided with a compression disc surface groove, and the compression head is pressed in the compression disc surface groove.

7. An intermittent flexographic printing apparatus as claimed in claim 5, wherein: One side of the pushing clamping groove piece is provided with a pushing threaded hole, a lead screw is threadedly connected in the pushing threaded hole, one end of the lead screw extends to the outside of the pushing threaded hole and is connected with a lead screw motor, the lead screw motor is fixed to the clamping groove frame, the clamping groove frame is fixed to the flexible printing seat through a screw.

8. An intermittent flexographic printing apparatus as claimed in claim 1, characterized in that: An anilox roller motor is installed on the flexible printing seat, and one side roller shaft of the anilox roller is connected with the anilox roller motor.

9. An intermittent flexographic printing apparatus as claimed in claim 1, characterized in that: A bottom frame is fixedly installed on the bottom of the flexible printing seat.

10. An intermittent flexographic printing apparatus as claimed in claim 1, characterized in that: A limiting cylinder is rotatably installed on the inside wall of the flexible printing seat, and the limiting cylinder is located below the ink fountain.

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