A closed material box for online replacement of scraper

Abstract

The utility model discloses a closed material box for online replacement of scrapers, including a frame, a plate roller, a material box, a scraper assembly, a material box moving assembly, a scraper translation assembly and a scraper rotating assembly, wherein the plate roller is rotatably connected to the frame, an opening is provided on one side of the material box, the material box moving assembly drives the material box to approach or move away from the plate roller, the scraper assembly includes a first blade holder, a second blade holder, a first scraper arranged on the first blade holder, and a plurality of second scrapers arranged on the second blade holder, the first blade holder and the second blade holder are respectively arranged on both sides of the opening of the material box, the scraper translation assembly is used to drive the second blade holder to approach or move away from the plate roller, the scraper rotating assembly is used to drive the second blade holder to rotate, and a plurality of second scrapers are distributed in a ring array along the rotation center of the second blade holder. The utility model can realize the rapid switching of the second scraper, reduce downtime, and improve production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of coating equipment, in particular to a closed material box for online replacement of scrapers. Background Art

[0002] In the gravure coating process, a closed material box is usually used. An opening is provided on the side of the material box close to the plate roller. Scrapers are provided on both sides of the opening of the material box. The plate roller and the scraper of the material box are tightly attached to each other to achieve the closure of the material box.

[0003] During production, the plate roller is in a high-speed running state. If one of the scrapers is in contact with the high-speed running plate roller for a long time, it will cause wear. Therefore, the scraper needs to be replaced after a certain period of use.

[0004] However, the existing coating device generally presses the scraper in the material box through a pressure plate and bolts. When replacing the scraper, the disassembly and assembly time is relatively long, which causes the equipment to be shut down for a long time, seriously affecting production efficiency. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a closed material box for online replacement of scrapers, which can achieve rapid switching of the second scraper, reduce downtime, and improve production efficiency.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A closed material box for online replacement of scrapers comprises a frame, a plate roller, a material box, a scraper assembly, a material box moving assembly, a scraper translation assembly and a scraper rotating assembly, the plate roller is rotatably connected to the frame, the material box and the scraper assembly are both movably arranged on the frame, one side of the material box is provided with an opening, the material box moving assembly drives the material box to approach or move away from the plate roller, the scraper assembly comprises a first knife holder, a second knife holder, a first scraper arranged on the first knife holder, and a plurality of second scrapers arranged on the second knife holder, the first knife holder is fixedly arranged on one side of the opening of the material box, the second knife holder is movably arranged on the other side of the opening of the material box, the scraper translation assembly is used to drive the second knife holder to approach or move away from the plate roller, the scraper rotating assembly is used to drive the second knife holder to rotate, and the plurality of second scrapers are distributed in a ring array along the rotation center of the second knife holder;

[0008] When the scraper translation assembly drives the second knife holder close to the plate roller, the material box moving assembly drives the material box close to the plate roller and abuts against the second knife holder.

[0009] As a further improvement of the above technical solution, the material box moving assembly includes a support frame, a rocker arm arranged at one end of the support frame, and a cylinder driving the rocker arm to flip, the material box is fixed on the support frame, one end of the rocker arm is rotatably connected to the frame, the other end of the rocker arm is rotatably connected to the telescopic end of the cylinder through a fisheye joint, and the other end of the cylinder is rotatably connected to the frame.

[0010] As a further improvement of the above technical solution, the scraper translation assembly includes a moving plate and a first driving member, the moving plate is slidably connected to the frame, the first driving member is used to drive the moving plate to translate, and the scraper rotation assembly is arranged on the moving plate.

[0011] As a further improvement of the above technical solution, a sliding structure is provided between the frame and the movable plate, and the frame and the movable plate slide relative to each other based on the sliding structure.

[0012] As a further improvement of the above technical solution, an adjustment component is provided on the movable plate, and the adjustment component includes two adjustment fixed blocks, an adjustment screw, an adjustment block and an adjustment handwheel. The two adjustment fixed blocks are respectively fixed on both sides of the movable plate, and the adjustment screw is rotatably connected to the two adjustment fixed blocks. A nut is provided in the adjustment block, and the nut is threadedly connected to the adjustment screw. The adjustment handwheel is fixedly connected to one end of the adjustment screw, and the scraper rotation component is arranged on the adjustment block.

[0013] As a further improvement of the above technical solution, a locking screw is threadedly connected to one of the adjustment fixing blocks.

[0014] As a further improvement of the above technical solution, the scraper rotating assembly includes a rotating shaft and a second driving member that drives the rotating shaft to rotate, the rotating shaft is arranged at one end of the second tool holder, and the second driving member is arranged on the movable plate.

[0015] As a further improvement of the above technical solution, sealing grooves are provided on both sides of the opening of the material box, and the sealing grooves accommodate sealing strips, and the two sealing strips are respectively in contact with the first tool holder and the second tool holder.

[0016] As a further improvement of the above technical solution, foam is provided at both ends of the material box.

[0017] As a further improvement of the above technical solution, the foam is fixedly connected to the end of the material box through a foam cover.

[0018] The beneficial effects of the utility model are as follows: the utility model provides a closed material box for online replacement of scrapers, by arranging a material box moving component, a scraper translation component and a scraper rotation component, when the scraper needs to be replaced, the material box moving component drives the material box away from the plate roller, so that the material box is separated from the second knife holder, then the scraper translation component drives the second knife holder and the second scraper to translate, so that the second knife holder and the second scraper are away from the plate roller, then, the scraper rotation component drives the second knife holder to rotate, and the second knife holder drives several second scrapers to flip, so that one of the spare second scrapers on the second knife holder is switched to the position of the original working second scraper, thereby, the second scraper can be quickly switched, the downtime can be reduced, and the production efficiency can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is a structural schematic diagram provided by an example of the utility model;

[0021] Figure 2 It is a side cross-sectional view of the utility model in the coating state;

[0022] Figure 3 It is a side sectional view of the utility model in the tool changing state;

[0023] Figure 4 yes Figure 1 Structural schematic diagram of the middle scraper translation assembly, scraper rotation assembly and adjustment assembly;

[0024] Figure 5 yes Figure 4 A cross-sectional view of

[0025] Figure 6 yes Figure 1 A is an enlarged view of the middle image.

[0026] Reference numerals: 1-frame;

[0027] 2-plate roller;

[0028] 3-material box, 31-sealing strip, 32-foam, 33-foam cover;

[0029] 4-scraper assembly, 41-first blade holder, 42-second blade holder, 43-first scraper, 44-second scraper;

[0030] 5-material box moving assembly, 51-support frame, 52-rocker arm, 53-cylinder, 54-fisheye joint, 55-rotating shaft;

[0031] 6-scraper translation assembly, 61-moving plate, 62-first driving member, 63-sliding block, 64-guide rail;

[0032] 7-scraper rotating assembly, 71-rotating shaft, 72-second driving member;

[0033] 8-adjustment assembly, 81-adjustment fixing block, 82-adjustment screw, 83-adjustment block, 84-adjustment handwheel, 85-nut, 86-locking screw. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the concept, specific structure and technical effects of the utility model in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the utility model. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the creation of the utility model can be combined interchangeably without conflicting with each other.

[0035] Reference Figures 1 to 4 The utility model provides a closed material box for online replacement of scrapers, comprising a frame 1, a plate roller 2, a material box 3, a scraper assembly 4, a material box moving assembly 5, a scraper translation assembly 6 and a scraper rotating assembly 7. The plate roller 2 is rotatably connected to the frame 1, the material box 3 and the scraper assembly 4 are both movably arranged on the frame 1, an opening is arranged on one side of the material box 3, the material box moving assembly 5 drives the material box 3 to approach or move away from the plate roller 2, and the scraper assembly 4 comprises a first knife frame 41, a second knife frame 42, a first scraper 43 arranged on the first knife frame 41 and a first scraper 44 arranged on the second knife frame 42. Several second scrapers 44 are on the tool holder 42, the first tool holder 41 is fixedly set on one side of the opening of the material box 3, and the second tool holder 42 is movably set on the other side of the opening of the material box 3. The scraper translation assembly 6 is used to drive the second tool holder 42 to approach or move away from the plate roller 2, and the scraper rotation assembly 7 is used to drive the second tool holder 42 to rotate. The several second scrapers 44 are distributed in a circular array along the rotation center of the second tool holder 42. Specifically, the first scraper 43 is installed on the first tool holder 41 through a pressure plate, and the several second scrapers 44 are installed on the second tool holder 42 through a pressure plate.

[0036] Reference Figure 2During coating, the first scraper 43 on the first tool holder 41 is in contact with the outer surface of the plate roller 2, and one of the second scrapers 44 on the second tool holder 42 is in contact with the outer surface of the plate roller 2. The plate roller 2 is partially immersed in the slurry in the material box 3. The plate roller 2 rotates so that the outer surface of the plate roller 2 is coated with the slurry. Then, the second scraper 44 scrapes away part of the slurry on the outer surface of the plate roller 2, so that the slurry coated on the plate roller 2 is evenly distributed. The first scraper 43 is in contact with the outer surface of the plate roller 2, which can close the material box 3 and prevent the slurry in the material box 3 from leaking.

[0037] Reference Figure 3 After being used for a period of time, the second scraper 44 needs to be replaced, and the material box moving assembly 5 drives the material box 3 away from the plate roller 2 to separate the material box 3 from the second blade holder 42. Then, the scraper translation assembly 6 drives the second blade holder 42 and several second scrapers 44 to translate, so that the second blade holder 42 and several second scrapers 44 translate away from the plate roller 2. Then, the scraper rotating assembly 7 drives the second blade holder 42 to rotate, and the second blade holder 42 drives several second scrapers 44 to flip, so that one of the spare second scrapers 44 on the second blade holder 42 is switched to the position of the original working second scraper 44, thereby, the second scraper 44 can be quickly switched, reducing downtime and improving production efficiency.

[0038] In some preferred embodiments, the material box moving assembly 5 includes a support frame 51, a rocker arm 52 and a cylinder 53, one end of the support frame 51 is fixedly connected to the middle part of the rocker arm 52, one end of the rocker arm 52 is rotatably connected to the frame 1 through a rotating shaft 55, the other end of the rocker arm 52 is rotatably connected to the telescopic end of the cylinder 53 through a fisheye joint 54, the other end of the cylinder 53 is rotatably connected to the frame 1, the material box 3 is fixed on the support frame 51, when the cylinder 53 is extended and retracted, the cylinder 53 drives the rocker arm 52 to swing around the axis of the rotating shaft 55, and the rocker arm 52 drives the support frame 51 and the material box 3 to flip together, thereby making the material box 3 move away from or close to the plate roller 2, and at the same time, the material box 3 is separated from or fitted with the second tool holder 42.

[0039] It should be noted that there are two rocker arms 52 and two cylinders 53, respectively. The two rocker arms 52 are respectively arranged at both ends of the support frame 51, and the two cylinders 53 respectively drive the two rocker arms 52 to swing along the same direction of movement, so that the material box 3 is evenly stressed and the stability of the equipment is improved.

[0040] In other embodiments, the material box moving assembly 5 includes a support frame 51 and a cylinder 53. The cylinder 53 is fixed on the frame 1. The telescopic end of the cylinder 53 is fixedly connected to the support frame 51. The material box 3 is fixed on the support frame 51. When the cylinder 53 is telescopic, the cylinder 53 drives the support frame 51 and the material box 3 to move linearly together, thereby making the material box 3 move away from or close to the plate roller 2. At the same time, the material box 3 is separated from or fitted with the second tool holder 42.

[0041] The scraper translation assembly 6 includes a moving plate 61 and a first driving member 62. The moving plate 61 is slidably connected to the frame 1. The scraper rotation assembly 7 is arranged on the moving plate 61. The first driving member 62 drives the moving plate 61 to translate, thereby driving the scraper rotation assembly 7 and the second tool holder 42 to translate.

[0042] Furthermore, a sliding structure is provided between the frame 1 and the movable plate 61, and the frame 1 and the movable plate 61 slide relative to each other based on the sliding structure. Specifically, the sliding structure includes a slider 63 and a guide rail 64. The guide rail 64 is provided on the frame 1, and the movable plate 61 is provided with a slider 63. The slider 63 is slidably connected to the guide rail 64, thereby increasing the stability of the movable plate 61.

[0043] More specifically, the first driving member 62 is a telescopic cylinder, and the telescopic end of the telescopic cylinder is connected to the moving plate 61 via a fisheye joint 54 .

[0044] Furthermore, an adjustment component 8 is provided on the movable plate 61 , and the adjustment component 8 is used to adjust the position of the tool holder 41 along a direction perpendicular to the moving direction of the movable plate 61 .

[0045] Reference Figure 4 and Figure 5 Structurally, the adjusting assembly 8 includes two adjusting fixed blocks 81, an adjusting screw 82, an adjusting block 83 and an adjusting handwheel 84. The two adjusting fixed blocks 81 are respectively fixed on both sides of the movable plate 61. The adjusting screw 82 is rotatably connected to the two adjusting fixed blocks 81. A nut 85 is provided in the adjusting block 83. The nut 85 is threadedly connected to the adjusting screw 82. The adjusting handwheel 84 is fixedly connected to one end of the adjusting screw 82. The scraper rotating assembly 7 is provided on the adjusting block 83. By rotating the adjusting handwheel 84, the adjusting handwheel 84 drives the adjusting screw 82 to rotate. The adjusting screw 82 is screwed together with the nut 85. The adjusting screw 82 drives the nut 85 and the adjusting block 83 to move along the length direction of the adjusting screw 82. The adjusting block 83 drives the scraper rotating assembly 7 and the second tool holder 42 to move, thereby enabling the position of the second tool holder 42 to be adjusted in different directions.

[0046] Furthermore, a locking screw 86 is threadedly connected to one of the adjustment fixing blocks 81. One end of the locking screw 86 is screwed into the adjustment fixing block 81 and then abuts against the outer side of the adjustment screw 82, thereby locking the adjustment screw 82 to prevent the adjustment screw 82 from loosening and affecting the position of the second tool holder 42.

[0047] In some preferred embodiments, the scraper rotating assembly 7 includes a rotating shaft 71 and a second driving member 72, the rotating shaft 71 is fixed at one end of the second blade holder 42, and the second driving member 72 is arranged on the movable plate 61. When the second scraper 44 needs to be replaced, the second driving member 72 drives the rotating shaft 71 to rotate, and the rotating shaft 71 drives the second blade holder 42 to rotate, and the second blade holder 42 drives a plurality of second scrapers 44 to rotate around the rotating shaft 71, so that another spare second scraper 44 rotates to the position of the original working second scraper 44, and the original working second scraper 44 rotates to other positions, thereby facilitating the replacement of the second scraper 44 and reducing downtime.

[0048] Furthermore, two scraper rotation assemblies 7 and two scraper translation assemblies 6 are provided. Specifically, two rotation shafts 71 are respectively connected to the two ends of the second tool holder 42, and the two rotation shafts 71 are coaxially arranged. The two second driving members 72 are respectively arranged on the two movable plates 61, and the two first driving members 62 are respectively arranged on both sides of the frame 1.

[0049] When switching the second scraper 44, the two first driving members 62 respectively drive the two movable plates 61 to translate in the same direction, driving the second tool holder 42 and the two scraper rotating assemblies 7 to move together, and then the two second driving members 72 respectively drive the two rotating shafts 71 to rotate in the same direction, so that the second tool holder 42 rotates, thereby enabling the second tool holder 42 to be evenly stressed and improving the stability of the equipment.

[0050] It should be noted that the second driving member 72 is a rotary cylinder 53, which can rotate to a certain angle and has a compact structure, saving space and being easy to arrange.

[0051] Reference Figure 1 and Figure 6 Furthermore, sealing grooves are provided on both sides of the opening of the material box 3, and sealing strips 31 are accommodated in the sealing grooves. When the two sides of the opening of the material box 3 are respectively attached to the first tool holder 41 and the second tool holder 42, the sealing strip 31 can seal the gap between the material box 3 and the first tool holder 41 or the second tool holder 42, thereby preventing the slurry in the material box 3 from overflowing.

[0052] Furthermore, foams 32 are provided at both ends of the material box 3, and the foams 32 are fixedly connected to the ends of the material box 3 through foam covers 33. When the material box 3, the scraper 42 and the plate roller 2 are fitted together, the foams 32 on both sides of the material box 3 are pressed against the two ends of the plate roller 2, so that a closed space is formed inside the material box 3. On the one hand, the foams 32 can wipe away the paint on both sides of the plate roller 2, and on the other hand, it can prevent the slurry in the material box 3 from overflowing from both sides of the material box 3, thereby further improving the sealing performance of the material box 3.

[0053] The above is a specific description of the preferred implementation of the utility model, but the invention of the utility model is not limited to the described embodiments. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A closed material box for online replacement of scrapers, comprising a frame, a plate roller, a material box, a scraper assembly, and a material box moving assembly, wherein the plate roller is rotatably connected to the frame, the material box and the scraper assembly are both movably arranged on the frame, an opening is arranged on one side of the material box, and the material box moving assembly drives the material box to approach or move away from the plate roller, characterized in that: It also includes a scraper translation assembly and a scraper rotation assembly, the scraper assembly includes a first blade holder, a second blade holder, a first scraper arranged on the first blade holder, and a plurality of second scrapers arranged on the second blade holder, the first blade holder is fixedly arranged on one side of the opening of the material box, the second blade holder is movably arranged on the other side of the opening of the material box, the scraper translation assembly is used to drive the second blade holder to approach or move away from the plate roller, the scraper rotation assembly is used to drive the second blade holder to rotate, and the plurality of second scrapers are distributed in a ring array along the rotation center of the second blade holder; When the scraper translation assembly drives the second knife holder close to the plate roller, the material box moving assembly drives the material box close to the plate roller and abuts against the second knife holder.

2. A closed material box for online replacement of scraper blades according to claim 1, characterized in that: The material box moving assembly includes a support frame, a rocker arm arranged at one end of the support frame, and a cylinder driving the rocker arm to flip, the material box is fixed on the support frame, one end of the rocker arm is rotatably connected to the frame, the other end of the rocker arm is rotatably connected to the telescopic end of the cylinder through a fisheye joint, and the other end of the cylinder is rotatably connected to the frame.

3. A closed material box for online replacement of scraper blades according to claim 1, characterized in that: The scraper translation assembly includes a moving plate and a first driving member. The moving plate is slidably connected to the frame. The first driving member is used to drive the moving plate to translate. The scraper rotation assembly is arranged on the moving plate.

4. A closed material box for online replacement of scraper blades according to claim 3, characterized in that A sliding structure is provided between the frame and the movable plate, and the frame and the movable plate slide relative to each other based on the sliding structure.

5. A closed material box for online replacement of scraper blades according to claim 3, characterized in that: The movable plate is provided with an adjustment component, which includes two adjustment fixing blocks, an adjustment screw, an adjustment block and an adjustment handwheel. The two adjustment fixing blocks are respectively fixed on both sides of the movable plate. The adjustment screw is rotatably connected to the two adjustment fixing blocks. A nut is provided in the adjustment block, and the nut is threadably connected to the adjustment screw. The adjustment handwheel is fixedly connected to one end of the adjustment screw, and the scraper rotating component is arranged on the adjustment block.

6. A closed material box for online replacement of scraper blades according to claim 5, characterized in that: A locking screw is threadedly connected on one of the adjustment fixing blocks.

7. A closed material box for online replacement of scraper blades according to claim 3, characterized in that: The scraper rotating assembly comprises a rotating shaft and a second driving member for driving the rotating shaft to rotate. The rotating shaft is arranged at one end of the second blade holder, and the second driving member is arranged on the movable plate.

8. A closed material box for online replacement of scraper blades according to claim 1, characterized in that: Sealing grooves are provided on both sides of the opening of the material box, and sealing strips are accommodated in the sealing grooves. The two sealing strips are respectively in contact with the first tool holder and the second tool holder.

9. A closed material box for online replacement of scraper blades according to claim 1, characterized in that: Both ends of the material box are provided with foam.

10. A closed material box for online replacement of scraper blades according to claim 9, characterized in that: The foam is fixedly connected to the end of the material box through a foam cover.

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