A non-breakthrough corona silicone roller

Abstract

This utility model provides an anti-breakdown corona silicone roller, comprising: a roller body, a support tube for quick installation of a silicone sleeve fixed to the outer side of the roller body by a fixing ring, a fixing ring respectively provided at the left and right ends of the roller body, a silicone sleeve fixed to the outer wall of the support tube, the support tube including two arc plates for fixing and supporting the silicone sleeve, and a connecting plate fixed to the upper and lower sides between the two arc plates respectively. Compared with the prior art, this utility model has the following beneficial effects: by setting a ceramic layer with a thickness of 0.2-0.5mm on the outer wall of the silicone sleeve, it helps to improve the service life of the silicone sleeve; by adding a support tube and fixing rings between the roller body and the silicone sleeve, the installation and removal of the silicone sleeve becomes simple, eliminating the need to spend a lot of time and multiple people to complete the installation and removal of the silicone sleeve, thus improving the convenience of installation and removal of the silicone sleeve.

Description

Technical Field

[0001] This utility model belongs to the technical field of corona silicone rollers, and specifically relates to a corona-resistant silicone roller. Background Technology

[0002] Existing corona-treated silicone rollers use silicone sleeves, which are prone to localized breakdown under high-voltage conditions. Furthermore, their tight interference fit leads to time-consuming installation and can easily damage the silicone material. These problems stem from the insufficient dielectric properties and limited high-voltage resistance of the silicone material itself. During corona treatment, the silicone sleeve must withstand high frequency and high voltage, but uneven internal electric field distribution may cause local areas to exceed the material's breakdown strength, leading to breakdown failure. Conventional solutions to these problems include using high-performance silicone materials; however, these methods each have drawbacks: while high-performance silicone materials can effectively improve breakdown resistance, they are more expensive and have complex processing techniques. Therefore, we aim to design a corona-treated silicone roller with a novel structure to solve this problem. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a silicone roller that is resistant to breakdown and corona discharge, thereby solving the problems mentioned in the background art.

[0004] This utility model is achieved through the following technical solution: a silicone roller for preventing breakdown and corona discharge, comprising: a roller body, a support tube for quick installation of a silicone sleeve fixed to the outer side of the roller body by a fixing ring, a fixing ring being provided at the left end and the right end of the roller body respectively, and a silicone sleeve being fixed to the outer wall of the support tube;

[0005] The support tube includes two arc plates for fixing and supporting the silicone sleeve. A connecting plate is fixed on the upper and lower sides of the two arc plates, and a locking block is fixed on the left and right ends of each connecting plate. The silicone sleeve includes a ceramic layer for preventing breakdown. The ceramic layer is disposed on the outer surface of the silicone layer. In actual use, the thickness of the ceramic layer is 0.2-0.5mm, which can maintain the discharge uniformity requirement of surface roughness Ra≥1.2μm. The ceramic layer reduces the damage of nitric acid (concentration up to 10^-6mol / L) generated during the corona process to the silicone rubber molecular chains in the silicone sleeve, and avoids the formation of microcracks on its surface, thus reducing the dielectric strength.

[0006] In a preferred embodiment, the left and right sides of the roller are recessed inward to form circular grooves, and three extension grooves are radially extended outward on the outer side of the circular grooves, with each of the three extension grooves being set at a 120-degree angle.

[0007] In a preferred embodiment, three fixing plates are provided on the outer side of the fixing ring, each of the three fixing plates being arranged at a 120-degree angle. The fixing plates are movably fitted inside the extension groove, and the fixing ring is fixed inside the circular groove by screws.

[0008] As a preferred embodiment, each of the arc plates has a notch on the upper left side, upper right side, lower left side, and lower right side, and a fixing groove is formed inward on the upper left side, upper right side, lower left side, and lower right side of the arc plate on the rear side of the support tube, and the two fixing grooves on the arc plate on the rear side of the support tube are placed between the two notches above it.

[0009] A fixing groove is provided inward at the middle of the left end and the middle of the right end of the arc plate on the front side of the support tube, and the three fixing grooves are each set at a 120-degree angle.

[0010] In a preferred embodiment, the width, depth, and distribution position of the fixing groove are matched with the width, depth, and distribution position of the extension groove. The outer end of the fixing plate passes through the extension groove and is placed inside the fixing groove, and is fixedly connected to the arc plate by screws.

[0011] In a preferred embodiment, a groove is formed from left to right between the two notches on the upper side of the two arc plates, and a groove is formed from left to right between the two notches on the lower side of the two arc plates.

[0012] In a preferred embodiment, the locking block includes a first locking block and a second locking block. The second locking block is located at the end of the first locking block near the connecting plate. The cross-sectional dimensions and structure of the second locking block are the same as those of the connecting plate. The width of the first locking block is the same as the sum of the widths of the two adjacent notches and the width of the second locking block, and their curvature and axis are matched. In actual use, the locking block can fix the two arc plates and the two connecting plates to form a complete support tube structure, thereby fixing and supporting the outer silicone sleeve.

[0013] In a preferred embodiment, a positioning block 2 that matches the size and structure of the slide groove is provided on the front and rear sides of the second card block, and a positioning block 1 is provided outward at the end of the second card block near the connecting plate.

[0014] In a preferred embodiment, the end of the connecting plate near the locking block is recessed inward to form a positioning blind hole. The cross-sectional dimensions, structure, and depth of the positioning blind hole are matched with the cross-sectional dimensions, structure, and length of the positioning block one. The cross-sectional structure and dimensions of the connecting plate are matched with the cross-sectional structure and dimensions of the locking block two and the positioning blocks two on both sides of it as a whole.

[0015] After adopting the above technical solution, the beneficial effects of this utility model are: 1. By setting a ceramic layer with a thickness of 0.2-0.5mm on the outer wall of the silicone sleeve, the ceramic layer reduces the damage of nitric acid generated during the corona process to the silicone rubber molecular chains in the silicone sleeve, avoids the formation of microcracks on its surface and reduces the dielectric strength, thereby preventing continuous corona work from breaking down the silicone sleeve and helping to improve the service life of the silicone sleeve.

[0016] 2. By adding a support tube and a fixing ring between the roller body and the silicone sleeve, the installation and removal of the silicone sleeve are simplified, eliminating the need for a lot of time and multiple people to complete the installation and removal of the silicone sleeve, thus improving the ease of installation and removal of the silicone sleeve. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of a silicone roller designed to prevent breakdown and corona discharge according to this utility model.

[0019] Figure 2 This is a schematic diagram of the support tube for an anti-breakdown corona silicone roller according to the present invention.

[0020] Figure 3 This is a schematic diagram of the connection structure between the arc plate and the connecting plate of the anti-breakdown corona silicone roller of this utility model.

[0021] Figure 4 for Figure 3 A magnified diagram of point A in the middle.

[0022] Figure 5 This is a schematic diagram of the connecting plate structure of an anti-breakdown corona silicone roller according to the present invention.

[0023] Figure 6 This is a schematic diagram of the locking block structure of an anti-breakdown corona silicone roller according to the present invention.

[0024] In the diagram, 100 represents the roller body;

[0025] 200-Fixing ring;

[0026] 300-Supporting tube, 310-Arc plate, 311-Fixing groove, 312-Notch, 313-Sliding groove, 320-Locking block, 321-Clocking block one, 322-Clocking block two, 323-Positioning block one, 324-Positioning block two, 330-Connecting plate;

[0027] 400 - Silicone sleeve, 410 - Ceramic layer, 420 - Silicone layer. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] As the first embodiment of this utility model:

[0030] Please see Figures 1 to 6 A type of anti-breakdown corona silicone roller includes: a roller body 100, a support tube 300 for quick installation of a silicone sleeve 400 fixed on the outer side of the roller body 100 by a fixing ring 200, a fixing ring 200 being provided at the left end and the right end of the roller body 100 respectively, and a silicone sleeve 400 being fixed on the outer wall of the support tube 300.

[0031] The support tube 300 includes two arc plates 310 for fixing and supporting the silicone sleeve 400. A connecting plate 330 is fixed on the upper and lower sides between the two arc plates 310, and a locking block 320 is fixed on the left and right ends of each connecting plate 330. The silicone sleeve 400 includes a ceramic layer 410 for preventing breakdown. The ceramic layer 410 is disposed on the outer wall surface of the silicone layer 420. In actual use, the thickness of the ceramic layer 410 is 0.2-0.5mm, which can maintain the discharge uniformity requirement of surface roughness Ra≥1.2μm. The ceramic layer 410 reduces the damage of nitric acid (concentration up to 10^-6mol / L) generated during the corona process to the silicone rubber molecular chains in the silicone sleeve 400, and avoids the formation of microcracks on its surface, thus reducing the dielectric strength.

[0032] Specifically, by setting a ceramic layer 410 with a thickness of 0.2-0.5mm on the outer wall of the silicone sleeve 400, in actual use, the ceramic layer 410 reduces the damage of the silicone rubber molecular chains in the silicone sleeve 400 caused by the nitric acid generated during the corona process, avoids the formation of microcracks on its surface and reduces the dielectric strength, thereby preventing the silicone sleeve 400 from being broken down by continuous corona work, and helps to improve the service life of the silicone sleeve 400.

[0033] As a second embodiment of this utility model:

[0034] Please see Figures 1 to 6 The left and right sides of the roller body 100 are recessed inward to form circular grooves. Three extension grooves are radially extended outward on the outer side of the circular grooves, and the three extension grooves are each set at a 120-degree angle.

[0035] The outer side of the fixing ring 200 is provided with three fixing plates, each of which is set at a 120-degree angle. The fixing plates are movably snapped into the extension groove, and the fixing ring 200 is fixed in the circular groove by screws.

[0036] Each arc plate 310 has a notch 312 on the upper left side, upper right side, lower left side, and lower right side. The arc plate 310 on the rear side of the support tube 300 has a fixing groove 311 on the upper left side, upper right side, lower left side, and lower right side. The two fixing grooves 311 on the arc plate 310 on the rear side of the support tube 300 are placed between the two notches 312.

[0037] The arc plate 310 on the front side of the support tube 300 has a fixing groove 311 inwardly at the middle of the left end and the middle of the right end, and the three fixing grooves 311 are set at an angle of 120 degrees.

[0038] The width, depth, and distribution of the fixing groove 311 are matched with the width, depth, and distribution of the extension groove. The outer end of the fixing plate passes through the extension groove and is placed inside the fixing groove 311 and is fixedly connected to the arc plate 310 by screws.

[0039] A groove 313 is formed by passing through the two notches 312 on the upper side of the two arc plates 310 from left to right. A groove 313 is also formed by passing through the two notches 312 on the lower side of the two arc plates 310 from left to right.

[0040] The locking block 320 includes a first locking block 321 and a second locking block 322. The second locking block 322 is provided at the end of the first locking block 321 near the connecting plate 330. The cross-sectional dimensions and structure of the second locking block 322 are the same as those of the connecting plate 330. The width of the first locking block 321 is the same as the sum of the widths of the two adjacent notches 312 and the width of the second locking block 322, and their curvature and axis are matched. In actual use, the locking block 320 can fix the two arc plates 310 and the two connecting plates 330 to form a complete support tube 300 structure, which can then fix and support the outer silicone sleeve 400.

[0041] The front and rear sides of the second locking block 322 are respectively provided with a second positioning block 324 that matches the size and structure of the slide groove 313, and the end of the second locking block 322 near the connecting plate 330 is provided with a first positioning block 323.

[0042] The end of the connecting plate 330 near the locking block 320 is recessed inward to form a positioning blind hole. The cross-sectional dimensions, structure, and depth of the positioning blind hole are all matched with the cross-sectional dimensions, structure, and length of the positioning block 323. The cross-sectional structure and dimensions of the connecting plate 330 are all matched with the cross-sectional structure and dimensions of the combined block 322 and the positioning blocks 324 on both sides.

[0043] Based on the first embodiment described above, further, in actual use, when the silicone sleeve 400 needs to be installed, first place the two arc plates 310 inside the silicone sleeve 400, then assemble the two connecting plates 330 through the sliding grooves 313 on the arc plates 310. After the two arc plates 310 and the two connecting plates 330 form a cylindrical structure, snap the four locking blocks 320 into the left and right ends of the two connecting plates 330 through the notches 312, and then fix them with screws. This completes the assembly and fixing of the support tube 300. At this time, the silicone sleeve 400 is placed on the outer wall of the assembled silicone tube (this method can easily complete the interference fit of the silicone sleeve 400). Then, the assembled support tube 300 and silicone sleeve 400 are mounted on the roller body 100. Subsequently, the two fixing rings 200 are snapped into place through the circular groove, extension groove, and fixing groove 311, and screws are used to fix them to both ends of the roller body 100 and both ends of the support tube 300, thereby completing the fixation of the support tube 300 and completing the installation and fixation of it to the roller body 100. The addition of the support tube 300 and fixing rings 200 makes the installation and removal of the silicone sleeve 400 simple, eliminating the need for a lot of time and multiple people to complete the installation and removal of the silicone sleeve 400, which helps to improve the ease of installation and removal of the silicone sleeve 400.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A breakdown corona-resistant silicone roller, comprising: The roller body (100) is characterized in that a support tube (300) for quick installation of a silicone sleeve (400) is fixed on the outer side of the roller body (100) by a fixing ring (200), and a fixing ring (200) is provided on the left end and the right end of the roller body (100), and a silicone sleeve (400) is fixed on the outer wall of the support tube (300). The support tube (300) includes two arc plates (310) for fixing and supporting the silicone sleeve (400). A connecting plate (330) is fixed on the upper and lower sides of the two arc plates (310), and a locking block (320) is fixed on the left and right ends of each connecting plate (330). The silicone sleeve (400) includes a ceramic layer (410) for puncture prevention. The ceramic layer (410) is disposed on the outer wall surface of the silicone layer (420).

2. The anti-breakdown corona silicone roller as described in claim 1, characterized in that: The left and right sides of the roller body (100) are recessed inward to form circular grooves. Three extension grooves are radially extended outward on the outer side of the circular grooves, and the three extension grooves are each set at a 120-degree angle.

3. The anti-breakdown corona silicone roller as described in claim 2, characterized in that: The outer side of the fixing ring (200) is provided with three fixing plates, each of which is set at a 120-degree angle. The fixing plates are movably fitted inside the extension groove, and the fixing ring (200) is fixed inside the circular groove by screws.

4. The anti-breakdown corona silicone roller as described in claim 3, characterized in that: Each of the arc plates (310) has a notch (312) on the upper left side, upper right side, lower left side, and lower right side respectively. The arc plates (310) on the rear side of the support tube (300) have a fixing groove (311) on the upper left side, upper right side, lower left side, and lower right side respectively. The two fixing grooves (311) on the arc plates (310) on the rear side of the support tube (300) are placed between the two notches (312). The arc plate (310) on the front side of the support tube (300) has a fixing groove (311) inwardly opened at the middle of the left end and the middle of the right end, and the three fixing grooves (311) are each set at a 120-degree angle.

5. The anti-breakdown corona silicone roller as described in claim 4, characterized in that: The width, depth and distribution position of the fixing groove (311) are matched with the width, depth and distribution position of the extension groove. The outer end of the fixing plate passes through the extension groove and is placed inside the fixing groove (311) and is fixedly connected to the arc plate (310) by screws.

6. The anti-breakdown corona silicone roller as described in claim 4, characterized in that: A groove (313) is formed between the two notches (312) on the upper side of the two arc plates (310) from left to right. A groove (313) is also formed between the two notches (312) on the lower side of the two arc plates (310) from left to right.

7. The anti-breakdown corona silicone roller as described in claim 6, characterized in that: The locking block (320) includes a first locking block (321) and a second locking block (322). The first locking block (321) is provided with the second locking block (322) at one end near the connecting plate (330). The cross-sectional dimensions and structure of the second locking block (322) are the same as those of the connecting plate (330). The width of the first locking block (321) is the same as the sum of the widths of the two adjacent notches (312) and the width of the second locking block (322), and their curvature and axis are matched.

8. The anti-breakdown corona silicone roller as described in claim 7, characterized in that: The front and rear sides of the second card block (322) are respectively provided with a second positioning block (324) that matches the size and structure of the slide groove (313), and the end of the second card block (322) near the connecting plate (330) is provided with a first positioning block (323).

9. The anti-breakdown corona silicone roller as described in claim 8, characterized in that: The end of the connecting plate (330) near the locking block (320) is recessed inward to form a positioning blind hole. The cross-sectional dimensions, structure, and depth of the positioning blind hole are matched with the cross-sectional dimensions, structure, and length of the positioning block one (323). The cross-sectional structure and dimensions of the connecting plate (330) are matched with the cross-sectional structure and dimensions of the locking block two (322) and the positioning blocks two (324) on both sides of it as a whole.

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