Vacuum roller

Abstract

The vacuum roller comprises a roller body, the roller body is of a hollow structure with an opening in one end, a plurality of through holes communicated with the interior of the roller body are formed in the circumferential outer wall of the roller body, a flow dividing disc is arranged at the position, located at the end, in the roller body, a plurality of limiting grooves are formed in the circumferential inner wall of the roller body, and the through holes are communicated with the interior of the roller body. A plurality of limiting grooves are formed in the flow dividing disc, limiting plates are slidably connected into the multiple limiting grooves, the flow dividing disc is fixed to the limiting plates, multiple receding holes communicating with the through holes are formed in the tops of the limiting plates, and pipe frames communicating with the receding holes are fixedly connected to the bottoms of the limiting plates. The air suction space of the vacuum pump can be reduced, so that air can be rapidly extracted, time is saved, efficiency is improved, the flow dividing disc can be stably installed in the roller body, the flow dividing disc can be prevented from moving, and the installation stability of the flow dividing disc is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum rollers, in particular to a vacuum roller. Background Art

[0002] The vacuum roller is a transmission device that absorbs the continuous web on the outer roller surface by generating negative pressure through internal air extraction and conveying the web.

[0003] After searching, a Chinese patent with publication number CN205613663U discloses a vacuum adsorption roller. The above device effectively and intelligently controls the adsorption force on the substrate based on the information monitored in real time by the pressure sensor. Since the diameter of the roller core is large and the internal space is relatively large, the time required for suction using a vacuum pump is long and the efficiency is low. Summary of the invention

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a vacuum roller.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A vacuum roller comprises a roller body, which is a hollow structure with an opening at one end, a plurality of through holes connected to the inside of the roller body are formed on the circumferential outer wall of the roller body, a diverter plate is arranged at the end of the roller body, a plurality of limit grooves are formed on the circumferential inner wall of the roller body, a limit plate is slidably connected in the plurality of limit grooves, and the diverter plate is fixed to the limit plate, a plurality of avoidance holes connected to the through holes are formed on the top of the limit plate, a pipe rack connected to the avoidance holes is fixedly connected to the bottom of the limit plate, and the pipe rack is fixed to the diverter plate, a connecting pipe is fixedly connected to one side of the diverter plate, and a limit assembly for fixing the diverter plate is provided at one end of the roller body close to the diverter plate.

[0007] As a further solution of the utility model, the limiting assembly includes a plurality of fixed blocks, and the plurality of fixed blocks are fixedly connected to one end of the roller body close to the diverter plate.

[0008] As a further solution of the utility model, two fixing frames are arranged in the roller body, and the circumferential outer walls of the two fixing frames are both provided with a plurality of slots, and the pipe racks are engaged with the slots.

[0009] As a further solution of the utility model, one end of the roller body away from the diverter plate is fixedly connected to a fixed shaft.

[0010] As a further solution of the present invention, a second bearing is provided on the circumferential outer wall of the fixed shaft.

[0011] As a further solution of the utility model, a first bearing is provided on the circumferential outer wall of the connecting pipe.

[0012] As a further solution of the utility model, one end of the connecting pipe is fixedly connected with a connecting head.

[0013] The beneficial effects of the utility model are:

[0014] 1. Through the coordinated use of the pipe rack and the diverter plate, the diverter plate is used to suck air from inside the multiple pipe racks, and the multiple pipe racks are respectively connected to the multiple through holes on the roller body, so as to achieve the adsorption of the substrate. By extracting the pipe rack, the space for the vacuum pump to suck air can be reduced, so that the air can be quickly extracted, saving time and improving efficiency.

[0015] 2. By setting the limit assembly, the limit assembly is used to resist and limit the diverter disc, so that the diverter disc can be stably installed inside the roller body, thereby preventing the diverter disc from moving and improving the stability of the diverter disc installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front three-dimensional structure of a vacuum roller proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the rear three-dimensional structure of a vacuum roller proposed by the utility model;

[0018] Figure 3 This is a schematic diagram of the partial cross-sectional structure of a vacuum roller proposed by the utility model.

[0019] In the figure: 1. roller body; 2. through hole; 3. connecting pipe; 4. first bearing; 5. connecting head; 6. fixing block; 7. fixing shaft; 8. second bearing; 9. diverter plate; 10. pipe rack; 11. limiting groove; 12. limiting plate; 13. avoiding hole; 14. fixing frame; 15. slot. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, other embodiments obtained by ordinary technicians in this field without making creative work are all within the scope of protection of the utility model.

[0021] Reference Figure 1-Figure 3A vacuum roller comprises a roller body 1, which is a hollow structure with an opening at one end. A plurality of through holes 2 connected to the inside of the roller body 1 are provided on the circumferential outer wall of the roller body 1. A diverter plate 9 is arranged at the end of the roller body 1. A plurality of limiting grooves 11 are provided on the circumferential inner wall of the roller body 1. A limiting plate 12 is slidably connected in the plurality of limiting grooves 11, and the diverter plate 9 is fixed to the limiting plate 12. A plurality of avoidance holes 13 connected to the through holes 2 are provided on the top of the limiting plate 12. A pipe rack 10 connected to the avoidance holes 13 is welded to the bottom of the limiting plate 12, and the pipe rack 10 is fixed to the diverter plate 9. A connecting pipe 3 is welded to one side of the diverter plate 9. A limiting component for fixing the diverter plate 9 is provided at one end of the roller body 1 close to the diverter plate 9. The roller body 1 is away from the diverter plate 9. One end of the disk 9 is fixed with a fixed shaft 7 by bolts, a second bearing 8 is provided on the circumferential outer wall of the fixed shaft 7, a first bearing 4 is provided on the circumferential outer wall of the connecting pipe 3, and one end of the connecting pipe 3 is fixed with a connector 5 by bolts. The vacuum pump is connected to the connecting pipe 3 through the connector 5. At this time, suction is performed through the vacuum pump, and the vacuum pump will extract the gas in the pipe rack 10 through the diverter disk 9. The pipe rack 10 is connected with the avoidance hole 13 on the limit plate 12, and the avoidance hole 13 is connected with the through hole 2 on the roller body 1. Therefore, when the vacuum pump is suctioning, it will realize the adsorption of the substrate. Since the vacuum pump extracts the gas in the pipe rack 10, the space for the vacuum pump to extract gas can be reduced, so that the air can be extracted quickly.

[0022] In the utility model, in order to make the diverter plate 9 installed more stably in the roller body 1, the limiting assembly includes a plurality of fixing blocks 6, and the plurality of fixing blocks 6 are fixed to one end of the roller body 1 close to the diverter plate 9 by bolts. The plurality of fixing blocks 6 are in contact with the diverter plate 9, and the diverter plate 9 is resisted and limited by the fixing blocks 6, so as to prevent the diverter plate 9 from moving out of the roller body 1. Two fixing frames 14 are arranged in the roller body 1, and the circumferential outer walls of the two fixing frames 14 are provided with a plurality of slots 15, and the pipe rack 10 is engaged with the slots 15. The fixing frames 14 can support the pipe rack 10, so as to reduce the centrifugal force on the pipe rack 10 and make the installation of the pipe rack 10 more stable.

[0023] Working principle: when it is needed, connect the vacuum pump to the connecting pipe 3 through the connector 5. At this time, air is sucked through the vacuum pump, and the vacuum pump extracts the gas in the pipe rack 10 through the diverter plate 9. The pipe rack 10 is connected with the avoidance hole 13 on the limit plate 12, and the avoidance hole 13 is connected with the through hole 2 on the roller body 1. Therefore, when the vacuum pump is sucking air, it can achieve adsorption of the substrate. Since the vacuum pump extracts the gas in the pipe rack 10, the space for the vacuum pump to extract gas can be reduced, so that the air can be extracted quickly, saving time and improving efficiency.

[0024] In addition, the terms "installation", "setting", "connection" and "socketing" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements or components. Those skilled in the art can understand the specific meanings of the above terms in this application according to specific circumstances.

Claims

1. A vacuum roller, comprising a roller body (1), characterized in that: The roller body (1) is a hollow structure with one end open. The outer circumferential wall of the roller body (1) is provided with a plurality of through holes (2) connected to the inside of the roller body (1). A diverter plate (9) is arranged at the end of the roller body (1). The inner circumferential wall of the roller body (1) is provided with a plurality of limiting grooves (11). A limiting plate (12) is slidably connected in each of the plurality of limiting grooves (11). The diverter plate (9) is fixed to the limiting plate (12). The top of the limiting plate (12) is provided with a plurality of avoidance holes (13) connected to the through holes (2). The bottom of the limiting plate (12) is fixedly connected to a pipe rack (10) connected to the avoidance holes (13). The pipe rack (10) is fixed to the diverter plate (9). A connecting pipe (3) is fixedly connected to one side of the diverter plate (9). A limiting component for fixing the diverter plate (9) is provided at one end of the roller body (1) close to the diverter plate (9).

2. A vacuum roller according to claim 1, characterized in that: The limiting assembly comprises a plurality of fixed blocks (6), and the plurality of fixed blocks (6) are all fixedly connected to one end of the roller body (1) close to the diverter plate (9).

3. A vacuum roller according to claim 1, characterized in that: Two fixing frames (14) are arranged inside the roller body (1), and a plurality of clamping grooves (15) are provided on the circumferential outer walls of the two fixing frames (14), and the pipe frame (10) is clamped with the clamping grooves (15).

4. A vacuum roller according to claim 1, characterized in that: One end of the roller body (1) away from the diverter plate (9) is fixedly connected to a fixed shaft (7).

5. A vacuum roller according to claim 4, characterized in that: A second bearing (8) is provided on the circumferential outer wall of the fixed shaft (7).

6. A vacuum roller according to claim 1, characterized in that: A first bearing (4) is provided on the circumferential outer wall of the connecting pipe (3).

7. A vacuum roller according to claim 6, characterized in that: One end of the connecting pipe (3) is fixedly connected to a connecting head (5).

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