Intermittent flexographic printing seat

Abstract

The utility model discloses an intermittent flexographic printing seat, and belongs to the field of printing equipment. Comprising a mounting frame, a plate roller, a plate roller driving motor, a plate roller transmission assembly, a bottom roller, a bottom roller driving motor, a bottom roller transmission assembly, a doctor blade, an ink disc, an ink transfer roller and an anilox roller, the mounting frame is fixed to a rack, and the plate roller, the plate roller driving motor, the bottom roller, the bottom roller driving motor, the doctor blade, the ink disc, the ink transfer roller and the anilox roller are all fixed to the mounting frame; the plate roller is connected with a plate roller driving motor through a plate roller transmission assembly, and the plate roller, the anilox roller and the ink transfer roller are sequentially in transmission connection. The bottom roller driving motor is arranged on the bottom roller to provide power for the bottom roller, a driven roller is changed into a driving roller, a printing material can be driven to advance and retreat, intermittent printing is achieved, position sleeving is more accurate, and precision is higher; meanwhile, the printing material can be prevented from bearing large pulling force in the returning process, and then the risk that the printing material is snapped is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of printing equipment, and particularly relates to an intermittent flexographic printing seat. BACKGROUND

[0002] Flexographic printing, also commonly referred to as flexographic printing, is a printing method using a flexible plate and transferring ink through a screen anilox roller. The printing plate of flexographic printing is usually made of rubber or flexible plastic material, which can well adapt to various irregular surfaces, has high printing speed and bright color characteristics, and is commonly used for printing of materials such as packaging, labels, paper, and plastic film, and has a broad application prospect.

[0003] In order to improve the utilization rate of the printing material, the prior art has an intermittent printing technology, which can improve the utilization rate of the printing material by controlling the printing material to retreat and supplement printing at the position of the empty part of the printing material.

[0004] The intermittent flexographic printing device is provided with a bottom roller and a plate roller, the printing material passes between the plate roller and the bottom roller, the bottom roller is used to carry the printing material, and the plate roller is used to print ink on the printing material. The printing material of the existing intermittent flexographic printing device is pulled forward by a traction roller, the bottom roller is a driven roller and has no power, and the bottom roller rolls with the printing material when the device works. When the printing material retreats, the sleeve position of the bottom roller is difficult to align due to the passive retreat of the printing material, sleeve position difference exists, and the precision is small. In addition, when the printing material is thin, the printing material may be pulled apart when the printing material pulls the bottom roller. TECHNICAL CONTENT

[0005] To solve the above problems, the primary purpose of the utility model is to provide an intermittent flexographic printing seat with better sleeve position precision.

[0006] Another purpose of the utility model is to provide an intermittent flexographic printing seat which can avoid the printing material from being pulled apart during the printing process.

[0007] To achieve the above purpose, the technical scheme of the utility model is as follows:

[0008] The utility model provides a kind of intermittent flexographic printing seat, comprising: mounting bracket, plate roller, plate roller drive motor, plate roller transmission component, bottom roller, bottom roller drive motor, bottom roller transmission component, ink scraper, ink tray, ink transfer roller, anilox roller, the mounting bracket is fixed on the rack, the plate roller, plate roller drive motor, bottom roller, bottom roller drive motor, ink scraper, ink tray, ink transfer roller, anilox roller are all fixed on the mounting bracket;The plate roller is connected with plate roller drive motor by plate roller transmission component, and the plate roller, anilox roller, ink transfer roller are sequentially transmission connection;The ink transfer roller is set to the top of the ink tray, and the ink scraper is set to the side of the ink transfer roller;The bottom roller is connected with the bottom roller drive motor by bottom roller transmission component, and the plate roller is set to the bottom of the bottom roller.

[0009] Further, the bottom roller transmission component includes a bottom roller driving gear, a bottom roller transmission gear and a bottom roller driven gear, the bottom roller driving gear is connected to the output end of the bottom roller drive motor, the bottom roller driven gear is coaxially fixedly connected with the bottom roller, and the bottom roller driving gear and the bottom roller driven gear are transmissionally connected through the bottom roller transmission gear. The bottom roller drive motor drives the bottom roller to rotate through the bottom roller driving gear, the bottom roller transmission gear and the bottom roller driven gear in sequence.

[0010] Further, the plate roller transmission component includes a plate roller transmission shaft, a plate roller transmission gear and a plate roller driven gear, the plate roller transmission shaft is arranged in the bottom roller and rotationally connected with the bottom roller, and the plate roller transmission shaft is connected to the output end of the plate roller drive motor;The plate roller transmission gear is fixedly sleeved on the plate roller transmission shaft, the plate roller transmission gear is transmissionally connected with the plate roller driven gear, and the plate roller driven gear is coaxially fixedly connected with the plate roller.

[0011] Further, an intermediate transmission wheel is arranged between the plate roller, the anilox roller and the ink transfer roller, so that the anilox roller and the ink transfer roller can be synchronously rotated by the plate roller.

[0012] Further, the utility model also includes a pressure adjusting structure, the pressure adjusting structure includes a fixed shaft, a first pressure adjusting movable block and a second pressure adjusting movable block, the two ends of the fixed shaft are fixedly arranged in the mounting bracket, the first pressure adjusting movable block is arranged between the plate roller and the bottom roller, and the second pressure adjusting movable block is arranged between the plate roller and the anilox roller;The first pressure adjusting movable block and the second pressure adjusting movable block are fixedly connected with the fixed shaft and can move relative to the fixed shaft;The first pressure adjusting movable block and the second pressure adjusting movable block combine to form a bearing groove, the plate roller is located in the bearing groove, and the roller surfaces on both sides of the plate roller respectively abut against the upper walls of the first pressure adjusting movable block and the second pressure adjusting movable block.

[0013] Compared with the prior art, the utility model discloses a bottom roller drive motor is arranged on the bottom roller to provide power for the bottom roller, changes from the driven roller to the driving roller, can drive the printing material to advance and retreat, realizes intermittent printing, and the sleeve position is more accurate, and the precision is higher, and simultaneously, can also avoid that the printing material bears greater tension when retreating, and then reduces the risk that the printing material is pulled apart. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is the first perspective axonometric drawing of intermittent flexographic printing seat.

[0015] Fig. 2 It is the second perspective axonometric drawing of intermittent flexographic printing seat.

[0016] Fig. 3 It is the structural schematic view of pressure regulating structure.

[0017] In the drawing: 31, mounting frame;32, plate roller;33, plate roller drive motor;34, plate roller transmission assembly;341, plate roller transmission shaft;342, plate roller transmission gear;343, plate roller driven gear;35, bottom roller;36, bottom roller drive motor;37, bottom roller transmission assembly;371, bottom roller driving gear;372, bottom roller transmission gear;373, bottom roller driven gear;38, doctor blade;39, ink tray;310, ink transfer roller;320, anilox roller;330, intermediate transmission wheel;340, pressure regulating structure;3401, fixed shaft;3402, first pressure regulating movable block;3403, second pressure regulating movable block;3404, bearing groove. DETAILED DESCRIPTION

[0018] In order to make the utility model's purpose, technical scheme and advantage more clearly, the following is combined with the drawing and example, and the utility model is further detailedly explained.It should be understood that the specific example described here is only used to explain the utility model, and is not used to limit the utility model.

[0019] In order to realize the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0020] Refer to Figs. 1-3As shown, the embodiment provides an intermittent flexographic printing seat, which comprises a mounting frame 31, a plate roller 32, a plate roller driving motor 33, a plate roller transmission assembly 34, a bottom roller 35, a bottom roller driving motor 36, a bottom roller transmission assembly 37, a doctor blade 38, an ink tray 39, an ink transfer roller 310, and an anilox roller 320. The mounting frame 31 is fixed on a machine frame. The plate roller 32, the plate roller driving motor 33, the bottom roller 35, the bottom roller driving motor 36, the doctor blade 38, the ink tray 39, the ink transfer roller 310, and the anilox roller 320 are all fixed on the mounting frame 31. The plate roller 32 is connected with the plate roller driving motor 33 through the plate roller transmission assembly 34, and the plate roller 32, the anilox roller 320, and the ink transfer roller 310 are sequentially connected through gear transmission. The ink transfer roller 310 is arranged above the ink tray 39, and the doctor blade 38 is arranged at the side of the ink transfer roller 310. The bottom roller 35 is connected with the bottom roller driving motor 36 through the bottom roller transmission assembly 37. The plate roller 32 is arranged above the bottom roller 35. When the printing machine prints, the printing material is attached to the surface of the bottom roller 35 and is arranged between the plate roller 32 and the bottom roller 35.

[0021] In the embodiment, compared with the existing intermittent flexographic printing module 3, the bottom roller 35 is powered by the bottom roller driving motor 36, and is changed from a driven roller to a driving roller, which can drive the printing material to advance and retreat, realize intermittent printing, make the positioning more accurate, and have higher precision. Meanwhile, the printing material can avoid bearing a large pulling force when retreating, thereby reducing the risk of being pulled off.

[0022] Further, the bottom roller transmission assembly 37 comprises a bottom roller driving gear 371, a bottom roller transmission gear 372, and a bottom roller driven gear 373. The bottom roller driving gear 371 is connected to the output end of the bottom roller driving motor 36. The bottom roller driven gear 373 is coaxially and fixedly connected with the bottom roller 35. The bottom roller driving gear 371 and the bottom roller driven gear 373 are drivingly connected through the bottom roller transmission gear 372. The bottom roller driving motor 36 drives the bottom roller 35 to rotate through the bottom roller driving gear 371, the bottom roller transmission gear 372, and the bottom roller driven gear 373 in sequence.

[0023] Further, the plate roller driving assembly 34 comprises a plate roller driving shaft 341, a plate roller driving gear 342, and a plate roller driven gear 343. The plate roller driving shaft 341 is arranged in the bottom roller 35 and is rotationally connected with the bottom roller 35. The plate roller driving shaft 341 is connected with the output end of the plate roller driving motor 33. The plate roller driving gear 342 is fixedly sleeved on the plate roller driving shaft 341. The plate roller driving gear 342 is in driving connection with the plate roller driven gear 343. The plate roller driven gear 343 is coaxially fixedly connected with the plate roller 32. In this embodiment, the plate roller driving motor 33 drives the plate roller 32 to rotate through the plate roller driving shaft 341, the plate roller driving gear 342, and the plate roller driven gear 343 in sequence. Since the plate roller 32 is located above the bottom roller 35 and protrudes from the mounting frame 31, and the plate roller driving motor 33 is fixed on the mounting frame 31, the plate roller driving shaft 341 must be located below the plate roller. In this embodiment, the plate roller driving shaft 341 is arranged in the bottom roller 35, so that the bottom roller 35 can be positioned by the plate roller driving shaft 341, and the space occupied by the plate roller driving shaft 341 is saved, so that the structure of the whole device is more reasonable and compact, and the volume of the device is reduced.

[0024] Further, an intermediate transmission wheel 330 is arranged between the plate roller 32, the anilox roller 320, and the ink transmission roller 310, so that the plate roller 32 can drive the anilox roller 320 and the ink transmission roller 310 to rotate synchronously. When the ink transmission roller 310 rotates, the ink in the ink tray 39 is conducted to the anilox roller 320, and then to the plate roller 32, so that the ink is transferred to the printing material by the plate roller 32. The doctor blade 38 can scrape the ink on the ink transmission roller 310 evenly.

[0025] Further, the device further comprises a pressure adjusting structure 340. The pressure adjusting structure 340 comprises a fixed shaft 3401, a first pressure adjusting movable block 3402, and a second pressure adjusting movable block 3403. The fixed shaft 3401 is fixed on the mounting frame 31. The first pressure adjusting movable block 3402 is arranged between the plate roller 32 and the bottom roller 35. The second pressure adjusting movable block 3403 is arranged between the plate roller 32 and the anilox roller 320. The first pressure adjusting movable block 3402 and the second pressure adjusting movable block 3403 are fixedly connected with the fixed shaft 3401 and can rotate relative to the fixed shaft 3401. The first pressure adjusting movable block 3402 and the second pressure adjusting movable block 3403 are combined to form a bearing groove 3404. The plate roller 32 is located in the bearing groove 3404. The roller surfaces on both sides of the plate roller 32 abut against the upper wall surfaces of the first pressure adjusting movable block 3402 and the second pressure adjusting movable block 3403, respectively. In this embodiment, the first pressure adjusting movable block 3402 and the second pressure adjusting movable block 3403 can bear the plate roller 32, so that the plate roller 32 has a certain spacing with the bottom roller 35 and the anilox roller 320. The first pressure adjusting movable block 3402 and the second pressure adjusting movable block 3403 can rotate relative to the fixed shaft 3401 to adjust the spacing, so as to adjust the pressure between the plate roller 32, the bottom roller 35, and the anilox roller 320.

[0026] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An intermittent flexographic printing press, characterized in that, include: The assembly comprises a mounting frame, a printing roller, a printing roller drive motor, a printing roller transmission assembly, a bottom roller, a bottom roller drive motor, a bottom roller transmission assembly, a doctor blade, an ink tray, an ink transfer roller, and an anilox roller. The mounting frame is fixed to the machine frame. The printing roller, printing roller drive motor, bottom roller, bottom roller drive motor, doctor blade, ink tray, ink transfer roller, and anilox roller are all fixed to the mounting frame. The printing roller is connected to the printing roller drive motor via the printing roller transmission assembly, and the printing roller, anilox roller, and ink transfer roller are sequentially connected and driven. The ink transfer roller is positioned above the ink tray, and the doctor blade is positioned to the side of the ink transfer roller. The bottom roller is connected to the bottom roller drive motor via the bottom roller transmission assembly, and the printing roller is positioned above the bottom roller.

2. The intermittent flexographic printing press as described in claim 1, characterized in that, The bottom roller transmission assembly includes a bottom roller drive gear, a bottom roller transmission gear, and a bottom roller driven gear. The bottom roller drive gear is connected to the output end of the bottom roller drive motor. The bottom roller driven gear is coaxially and fixedly connected to the bottom roller. The bottom roller drive gear and the bottom roller driven gear are connected by transmission through the bottom roller transmission gear. The bottom roller drive motor drives the bottom roller to rotate in sequence through the bottom roller drive gear, the bottom roller transmission gear, and the bottom roller driven gear.

3. The intermittent flexographic printing press as described in claim 1, characterized in that, The printing roller transmission assembly includes a printing roller transmission shaft, a printing roller transmission gear, and a printing roller driven gear. The printing roller transmission shaft passes through the bottom roller and is rotatably connected to the bottom roller. The printing roller transmission shaft is also connected to the output end of the printing roller drive motor. The printing roller transmission gear is sleeved and fixed on the printing roller transmission shaft. The printing roller transmission gear is drivingly connected to the printing roller driven gear, and the printing roller driven gear is coaxially and fixedly connected to the printing roller.

4. The intermittent flexographic printing press as described in claim 1, characterized in that, An intermediate drive wheel is provided between the printing roller, the anilox roller, and the ink transfer roller, which can drive the anilox roller and the ink transfer roller to rotate synchronously through the printing roller.

5. An intermittent flexographic printing press as described in claim 1, characterized in that, It also includes a pressure regulating structure, which comprises a fixed shaft, a first pressure regulating movable block, and a second pressure regulating movable block. The two ends of the fixed shaft are fixed to the mounting frame. The first pressure regulating movable block is disposed between the printing roller and the bottom roller, and the second pressure regulating movable block is disposed between the printing roller and the anilox roller. Both the first and second pressure regulating movable blocks are fixedly connected to the fixed shaft and can move relative to the fixed shaft. The first and second pressure regulating movable blocks are combined to form a bearing groove. The printing roller is located in the bearing groove, and the roller surfaces on both sides of the printing roller abut against the upper walls of the first and second pressure regulating movable blocks, respectively.

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