A powder-modified vacuum drum coating apparatus

By designing a vacuum drum coating equipment with adjustment, clamping, and coating mechanisms, the problem of uneven powder particle mixing was solved, achieving uniform coating and equipment stability, and improving the accuracy of powder modification and the effect of vacuum drum coating.

CN117802457BActive Publication Date: 2026-05-12LONGKOU CITY BITE VACUUM TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
LONGKOU CITY BITE VACUUM TECH
Filing Date
2024-01-15
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

In existing vacuum roller coating equipment for powder modification, the powder particles are not mixed evenly, resulting in poor coating uniformity and reducing the precision of powder modification.

Method used

A vacuum drum coating equipment was designed, comprising a furnace frame, an adjustment mechanism, a coating mechanism, and a clamping mechanism. The drum is driven to rotate by a motor in the coating assembly, and powder particles are coated by combining source components such as magnetic filter, arc source, and planar target. The powder particles are rolled uniformly in the drum by the center of gravity to ensure the consistency of the coating. The clamping mechanism is used to seal the vacuum environment and prevent air leakage. The adjustment mechanism improves the stability of movement.

Benefits of technology

It achieves uniformity and sealing of powder coating, improves the accuracy of powder modification and the stability and sealing effect of vacuum roller coating equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a kind of powder modified vacuum drum coating equipment, the present application relates to vacuum coating technical field, including furnace frame, the adjusting mechanism, coating mechanism and clamping mechanism are arranged on the top of furnace frame, the adjusting mechanism is below coating mechanism, the clamping mechanism is located on the surface of coating mechanism;The coating mechanism includes support assembly and coating assembly;Coating assembly is located on the surface of support assembly.The setting of coating mechanism, support assembly supports coating assembly, motor drives the rotation of drum in coating assembly, powder particles are constantly rolling, rising, falling in the inner wall of drum in the action of gravity force in drum, while the magnetic filtration source in vacuum chamber inner cylinder, arc source, plane target and other source components are coated to powder particles, since powder particles are constantly rolling in drum, make its coating uniform and consistent, improve the precision of the vacuum drum coating equipment to powder modification.
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Description

Technical Field

[0001] This invention relates to the field of vacuum coating technology, specifically to a vacuum roller coating equipment for powder modification. Background Technology

[0002] Vacuum coating is a method that involves heating metallic or non-metallic materials under high vacuum conditions, causing them to evaporate and condense onto the surface of the workpiece (metal, semiconductor, or insulator) to form a thin film. For powder materials, vacuum coating can improve their surface hardness, corrosion resistance, and optical properties, which will undoubtedly further expand its application range.

[0003] To address the challenges of vacuum roller coating for modified powders, patent CN201883142U discloses a powder coating apparatus, comprising a vacuum chamber, a hot-wire electrode, a magnetron target, a multi-station rotating target, an ion gun, and a rebound vibration device. Within the vacuum chamber, the hot-wire electrode, magnetron target, multi-station rotating target, and ion gun are positioned above the sample tray of the rebound vibration device. The ion beam from the ion gun is reflected from the target surface of the multi-station rotating target to the sample tray, and the centerline of the magnetron target intersects the sample tray. This design increases the distance between adjacent powder particles, reducing inter-particle friction and preventing the coating from being worn away. It also ensures that each powder particle has the opportunity to face the target surface or the hot-wire electrode from each side, thereby achieving coating on all surfaces of the powder particles.

[0004] However, existing devices still have the following problems: the powder particles are not mixed evenly, which cannot guarantee the uniformity of the coating and reduces the accuracy of powder modification. Therefore, a vacuum roller coating device for powder modification is proposed. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a vacuum roller coating equipment for powder modification, which solves the problem that uneven mixing of powder particles makes it impossible to guarantee the uniformity of the coating and reduces the precision of powder modification.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: a vacuum roller coating equipment for powder modification, comprising a furnace frame, an adjustment mechanism, a coating mechanism and a clamping mechanism arranged above the furnace frame, wherein the adjustment mechanism is located below the coating mechanism and the clamping mechanism is located on the surface of the coating mechanism;

[0007] The coating mechanism includes a support assembly and a coating assembly;

[0008] The coating component is located on the surface of the support component;

[0009] The support assembly includes a fixed base plate, a support frame is provided on the right side of the fixed base plate, a support column is provided on the right side of the support frame, and a fixed base is provided on the top of the support column;

[0010] The coating assembly includes a flange plate. A positioning ring for a fixed disc is located on the left side of the flange plate. The inner wall of the positioning ring is threadedly connected to the inner wall of the mounting plate of the fixed seat by bolts. A furnace door support roller is installed on the left side of the flange plate. A vacuum inner cylinder is located on the right side of the flange plate. An inner cylinder rear end plate is located on the right side of the vacuum inner cylinder. A motor is located above the fixed seat. The left end of the motor output rod extends through the right side of the fixed seat to the left side of the fixed seat. A rotating shaft is located on the left side of the fixed seat. A second gear is fixedly sleeved on the surface of the rotating shaft. A first gear is fixedly sleeved on the surface of the motor output rod. An outer vacuum outer cylinder is located to the left of the rotating shaft. A sealing seat is installed on the right side of the outer vacuum outer cylinder. A roller and four floating support rollers are located inside the outer vacuum outer cylinder. The four floating support rollers are located on both sides below the roller. A furnace frame panel is located above the support frame. Two support plates are located above the furnace frame panel. The top surfaces of the two support plates are fixedly connected to the bottom surface of the outer vacuum outer cylinder.

[0011] Preferably, the surface of the furnace door support roller is in contact with the surface of the positioning ring of the fixed plate, the left side of the vacuum chamber cylinder is fixedly connected to the right side of the flange plate, the right side of the vacuum chamber cylinder is threadedly connected to the left side of the rear end plate of the inner cylinder by bolts, and magnetic filters, arc sources and planar targets are arranged along the upper wall of the inner cylinder. The target particles of each source component in the vacuum chamber cylinder are magnetron sputtered onto the surface of powder particles in the drum for coating treatment.

[0012] Preferably, the left side of the support column is threadedly connected to the right side of the support frame by bolts, the top surface of the support frame is fixedly connected to the bottom surface of the furnace frame panel, and the bottom surfaces of the two support plates are threadedly connected to the top surface of the support frame by bolts. The support plates facilitate the support of the vacuum chamber.

[0013] Preferably, the bottom surface of the fixed base is threadedly connected to the top surface of the support column by bolts, the left side of the motor is fixedly connected to the right side of the fixed base, and the tooth surface of the first gear meshes with the tooth surface of the second gear to improve the stability of the motor connection.

[0014] Preferably, the left end face of the rotating shaft extends through the right side of the sealing seat and the right side of the outer vacuum chamber to the inside of the outer vacuum chamber. The surface of the rotating shaft is rotatably connected to the inner wall of the outer vacuum chamber and the inner wall of the sealing seat respectively through the bearing seat. The left end face of the rotating shaft is fixedly connected to the right side of the drum, and the sealing seat is protected from air leakage.

[0015] Preferably, all four floating support rollers are installed on the inner wall of the outer vacuum chamber, and the surfaces of the four outer vacuum chambers are rotatably connected to the roller surface. The floating support rollers are used to support the roller so that it does not skew when it rotates.

[0016] Preferably, the clamping mechanism includes two fixed lugs, which are symmetrically arranged. The inner end faces of the two fixed lugs are fixedly connected to the surface of the outer cylinder of the vacuum chamber. A clamping cylinder is fixedly connected to the right side of the fixed lugs. The left end face of the output rod of the clamping cylinder extends through the right side of the fixed lugs to the left side of the fixed lugs, so as to facilitate clamping the flange plate and the outer cylinder of the vacuum chamber.

[0017] Preferably, a slot is provided through the left side of the outer cylinder of the vacuum chamber, and a sealing ring is installed inside the slot to prevent air leakage during vacuuming.

[0018] Preferably, the adjustment mechanism includes an adjustment cylinder, with cylinder mounting seats installed on both the left and right sides of the adjustment cylinder. The bottom surface of the cylinder mounting seats is threadedly connected to the top surface of the furnace frame via bolts. A connecting plate is fixedly connected to the left end of the output rod of the adjustment cylinder. A furnace door bracket is provided on the left side of the connecting plate. The top surface of the inner side of the furnace door bracket is threadedly connected to the bottom surface of the connecting plate via bolts. The top surface of the furnace door bracket is fixedly connected to the top surface of the mounting seat plate, which facilitates the adjustment of the position of the inner cylinder of the vacuum chamber.

[0019] Preferably, the top surface of the furnace frame is fixedly connected to two tracks, which are symmetrically arranged. The track surface is provided with a slider, the inner side of the slider is slidably connected to the track surface, and the top surface of the slider is threadedly connected to the bottom surface of the furnace door support by bolts, thereby improving the stability of the inner cylinder of the vacuum chamber when it moves. Beneficial effects

[0020] This invention provides a vacuum roller coating apparatus for powder modification. Compared with the prior art, it has the following advantages:

[0021] (1) The vacuum roller coating equipment for powder modification, through the setting of the coating mechanism, the support component supports the coating component. The motor in the coating component drives the roller to rotate. Due to the effect of gravity, the powder particles continuously roll, rise and fall along the lower arc position of the inner wall of the roller. At the same time, the magnetic filter source, arc source, planar target and other source components in the vacuum chamber cylinder coat the powder particles. Since the powder particles continuously roll in the roller, the coating layer is guaranteed to be uniform and consistent, thus improving the accuracy of the vacuum roller coating equipment for powder modification.

[0022] (2) The powder-modified vacuum roller coating equipment, through the setting of the clamping mechanism, clamping cylinder locks the flange plate on the inner cylinder of the vacuum chamber and the sealing ring on the outer cylinder of the vacuum chamber, so as to avoid air leakage during vacuuming and improve the sealing effect of the powder-modified vacuum roller coating equipment.

[0023] (3) The vacuum roller coating equipment for powder modification, through the setting of the adjustment mechanism, facilitates the adjustment cylinder to drive the inner cylinder of the vacuum chamber to move along the track to the outer cylinder of the vacuum chamber. The track and slider improve the stability of the inner cylinder of the vacuum chamber when it moves.

[0024] (4) The powder-modified vacuum roller coating equipment, through the setting of floating support rollers, the floating support rollers on both sides of the lower part of the roller are used to support the roller to prevent it from tilting when rotating, ensuring the smoothness of the roller rotation and improving the stability of the powder-modified vacuum roller coating equipment. Attached Figure Description

[0025] Figure 1 This is a perspective view of the entire invention.

[0026] Figure 2 This is a rear perspective view of the entire invention;

[0027] Figure 3 This is a perspective view of the entire invention from the front sectional view.

[0028] Figure 4 This is a rear perspective view of the second gear of the present invention;

[0029] Figure 5 This is a perspective cross-sectional view of the left side of the floating support roller of the present invention;

[0030] Figure 6 This is a left perspective view of the floating support roller of the present invention.

[0031] Figure 7 For the present invention Figure 4 Enlarged 3D view of area A

[0032] Figure 8 For the present invention Figure 5 Enlarged 3D view of area B

[0033] Figure 9 For the present invention Figure 2 Enlarged 3D view of area C.

[0034] In the diagram: Furnace frame 1, Adjustment mechanism 2, Adjustment cylinder 201, Track 202, Slider 203, Door support 204, Connecting plate 205, Furnace door support 206, Coating mechanism 3, Fixed seat plate 301, Flange plate 302, Vacuum inner cylinder 303, Support column 304, Fixed seat 305, Motor 306, First gear 307, Second gear 308, Support plate 309, Vacuum outer cylinder 310, Rotating shaft 311, Roller 312, Furnace frame panel 313, Sealing seat 314, Inner cylinder rear end plate 315, Clamping mechanism 4, Fixed ear plate 401, Clamping cylinder 402, Sealing ring 404, Floating support roller 5. Detailed Implementation

[0035] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0036] Please see Figures 1-9 The present invention provides two technical solutions, specifically including the following embodiments: Example 1

[0037] A vacuum roller coating equipment for powder modification includes a furnace frame 1. An adjustment mechanism 2, a coating mechanism 3 and a clamping mechanism 4 are arranged above the furnace frame 1. The adjustment mechanism 2 is located below the coating mechanism 3 and the clamping mechanism 4 is located on the surface of the coating mechanism 3.

[0038] The coating mechanism 3 includes a support assembly and a coating assembly;

[0039] The coating component is located on the surface of the support component;

[0040] The support assembly includes a fixed base plate 301, a support frame is provided on the right side of the fixed base plate 301, a support column 304 is provided on the right side of the support frame, and a fixed base 305 is provided above the support column 304.

[0041] The coating assembly includes a flange plate 302. A positioning ring for a fixed plate is located on the left side of the flange plate 302. The inner wall of the positioning ring is threadedly connected to the inner wall of the fixed base plate 301 by bolts. A furnace door support roller is installed on the left side of the flange plate 302. A vacuum chamber inner cylinder 303 is located on the right side of the flange plate 302. An inner cylinder rear end plate 315 is located on the right side of the vacuum chamber inner cylinder 303. A motor 306 is located above the fixed base 305. The left end of the output rod of the motor 306 extends through the right side of the fixed base 305 to the left side of the fixed base 305. A rotating shaft 311 is located on the left side of the fixed base 305. A second gear 308 is fixedly sleeved on the surface of the rotating shaft 311, and a first gear 307 is fixedly sleeved on the surface of the output rod of the motor 306. A vacuum outer cylinder 310 is arranged on the left side of the rotating shaft 311, and a sealing seat 314 is installed on the right side of the vacuum outer cylinder 310. A roller 312 and four floating support rollers 5 are arranged inside the vacuum outer cylinder 310. The four floating support rollers 5 are located on both sides below the roller 312. A furnace frame panel 313 is arranged above the support frame, and two support plates 309 are arranged above the furnace frame panel 313. The top surfaces of the two support plates 309 are flush with the vacuum outer cylinder. The bottom surface of the outer cylinder 310 of the vacuum chamber is fixedly connected, and the surface of the furnace door support roller contacts the surface of the positioning ring of the fixed plate. The left side of the inner cylinder 303 of the vacuum chamber is fixedly connected to the right side of the flange plate 302. The right side of the inner cylinder 303 of the vacuum chamber is threadedly connected to the left side of the rear end plate 315 of the inner cylinder by bolts. Magnetic filters, arc sources, and planar targets are arranged along the upper wall inside the inner cylinder 303. The left side of the support column 304 is threadedly connected to the right side of the support frame by bolts. The top surface of the support frame is fixedly connected to the bottom surface of the furnace frame panel 313. The bottom surfaces of the two support plates 309 are bolted to the top surface of the support frame. The bottom surface of the fixed seat 305 is threadedly connected to the top surface of the support column 304 by bolts. The left side of the motor 306 is fixedly connected to the right side of the fixed seat 305. The tooth surface of the first gear 307 meshes with the tooth surface of the second gear 308. The left end face of the rotating shaft 311 extends through the right side of the sealing seat 314 and the right side of the vacuum outer cylinder 310 to the inside of the vacuum outer cylinder 310. The surface of the rotating shaft 311 is rotatably connected to the inner wall of the vacuum outer cylinder 310 and the inner wall of the sealing seat 314 by bearing seats respectively. The left end face of the rotating shaft 311 is fixedly connected to the right side of the drum 312.

[0042] Four floating support rollers 5 are installed on the inner wall of the outer vacuum chamber 310, and the surfaces of the four outer vacuum chambers 310 are rotatably connected to the surface of the rollers 312.

[0043] By setting up floating support rollers 5, the floating support rollers 5 on both sides of the lower part of the roller 312 are used to support the roller 312 to prevent it from tilting when rotating, ensuring the smooth rotation of the roller 312 and improving the stability of the vacuum roller coating equipment for powder modification.

[0044] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0045] During operation, firstly, the adjusting cylinder 201 is activated. The output rod of the adjusting cylinder 201 retracts, causing the connecting plate 205 to move to the right. The connecting plate 205 then causes the slider 203 to slide on the track 202, allowing the inner vacuum cylinder 303 to move along the track 202 to the outer vacuum cylinder 310. Then, the clamping cylinder 402 is activated, locking the flange plate 302 on the inner vacuum cylinder 303 and the sealing ring 404 on the outer vacuum cylinder 310, ensuring a leak-proof seal during vacuuming. A suitable amount of powder particles is then loaded into the drum 312, and the... The motor 306 is started, and the output rod of the motor 306 drives the connected first gear 307 to rotate. The rotation of the first gear 307 drives the meshing second gear 308 to rotate, so that the second gear 308 drives the connected rotating shaft 311 to rotate. The rotating shaft 311 drives the drum 312 to rotate. The powder particles inside the drum 312 tumble and roll along the lower arc position of the drum wall due to the action of the center of gravity. The target particles of each source component in the vacuum chamber cylinder 303 are magnetron sputtered onto the surface of the powder particles inside the drum 312 for coating treatment.

[0046] With the coating mechanism 3 in place, the support assembly supports the coating assembly. The motor 306 in the coating assembly drives the drum 312 to rotate. Due to the force of gravity, the powder particles continuously roll, rise, and fall along the lower arc of the inner wall of the drum 312. At the same time, the magnetic filter source, arc source, planar target, and other source components in the vacuum chamber 303 coat the powder particles. Because the powder particles continuously roll in the drum, the coating layer is guaranteed to be uniform and consistent, thus improving the accuracy of powder modification by the vacuum drum coating equipment. Example 2

[0047] Based on Embodiment 1, the clamping mechanism 4 includes two fixed ear plates 401, which are symmetrically arranged. The inner end faces of the two fixed ear plates 401 are fixedly connected to the surface of the outer vacuum chamber 310. A clamping cylinder 402 is fixedly connected to the right side of the fixed ear plate 401. The left end face of the output rod of the clamping cylinder 402 extends through the right side of the fixed ear plate 401 to the left side of the fixed ear plate 401. A slot is opened through the left side of the outer vacuum chamber 310, and a sealing ring 404 is installed inside the slot.

[0048] By setting the clamping mechanism 4, the clamping cylinder 402 locks the flange plate 302 on the inner cylinder 303 of the vacuum chamber and the sealing ring on the outer cylinder 310 of the vacuum chamber, so as to avoid air leakage during vacuuming and improve the sealing effect of the powder-modified vacuum roller coating equipment. Example 3

[0049] Based on Embodiment 1, the adjustment mechanism 2 includes an adjustment cylinder 201. A cylinder mounting base is installed on both the left and right sides of the adjustment cylinder 201. The bottom surface of the cylinder mounting base is threadedly connected to the top surface of the furnace frame 1 via bolts. A connecting plate 205 is fixedly connected to the left end of the output rod of the adjustment cylinder 201. A furnace door support 206 is provided on the left side of the connecting plate 205. The inner top surface of the furnace door support 206 is threadedly connected to the bottom surface of the connecting plate 205 via bolts. The top surface of the furnace door support 206 is fixedly connected to the top surface of the mounting plate 301. Two rails 202 are fixedly connected to the top surface of the furnace frame 1. The two rails 202 are symmetrically arranged. A slider 203 is provided on the surface of the rails 202. The inner side of the slider 203 is slidably connected to the surface of the rails 202. The top surface of the slider 203 is threadedly connected to the bottom surface of the furnace door support 206 via bolts.

[0050] By adjusting the mechanism 2, the cylinder 201 can drive the inner vacuum cylinder 303 to move along the track 202 to the outer vacuum cylinder 310. The track 202 and the slider 203 improve the stability of the inner vacuum cylinder 303 during movement.

[0051] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A vacuum roller coating apparatus for powder modification, comprising a furnace frame (1), characterized in that: An adjustment mechanism (2), a coating mechanism (3) and a clamping mechanism (4) are provided above the furnace frame (1). The adjustment mechanism (2) is located below the coating mechanism (3), and the clamping mechanism (4) is located on the surface of the coating mechanism (3). The coating mechanism (3) includes a support component and a coating component; The coating component is located on the surface of the support component; The support assembly includes a fixed base plate (301), a support frame is provided on the right side of the fixed base plate (301), a support column (304) is provided on the right side of the support frame, and a fixed base (305) is provided above the support column (304). The coating assembly includes a flange plate (302). A fixed disk positioning ring is provided on the left side of the flange plate (302). The inner wall of the fixed disk positioning ring is threadedly connected to the inner wall of the fixed seat plate (301) by bolts. A furnace door support roller is installed on the left side of the flange plate (302). A vacuum chamber cylinder (303) is provided on the right side of the flange plate (302). An inner cylinder rear end plate (315) is provided on the right side of the vacuum chamber cylinder (303). A motor (306) is provided above the fixed seat (305). The left end face of the output rod of the motor (306) extends through the right side of the fixed seat (305) to the left side of the fixed seat (305). A rotating shaft (311) is provided on the left side of the fixed seat (305). A second gear (308) is fixedly sleeved on the surface of the rotating shaft (311). The output rod of the motor (306) is... A first gear (307) is fixedly sleeved on the surface. A vacuum outer cylinder (310) is provided on the left side of the rotating shaft (311). A sealing seat (314) is installed on the right side of the vacuum outer cylinder (310). A roller (312) and four floating support rollers (5) are provided inside the vacuum outer cylinder (310). The four floating support rollers (5) are located on both sides below the roller (312). A furnace frame panel (313) is provided above the support frame. Two support plates (309) are provided above the furnace frame panel (313). The top surfaces of the two support plates (309) are fixedly connected to the bottom surface of the vacuum outer cylinder (310). The left side of the motor (306) is fixedly connected to the right side of the fixed seat (305). The tooth surface of the first gear (307) meshes with the tooth surface of the second gear (308). The left end face of the rotating shaft (311) extends through the right side of the sealing seat (314) and the right side of the vacuum outer cylinder (310) into the interior of the vacuum outer cylinder (310). The surface of the rotating shaft (311) is rotatably connected to the inner wall of the vacuum outer cylinder (310) and the inner wall of the sealing seat (314) respectively through the bearing seat. The left end face of the rotating shaft (311) is fixedly connected to the right side of the roller (312).

2. The vacuum roller coating equipment for powder modification according to claim 1, characterized in that: The surface of the furnace door support roller is in contact with the surface of the fixed plate positioning ring. The left side of the vacuum inner cylinder (303) is fixedly connected to the right side of the flange plate (302). The right side of the vacuum inner cylinder (303) is threadedly connected to the left side of the inner cylinder rear end plate (315) by bolts. Magnetic filters, arc sources and planar targets are arranged along the upper wall inside the vacuum inner cylinder (303).

3. The vacuum roller coating equipment for powder modification according to claim 1, characterized in that: The left side of the support column (304) is threadedly connected to the right side of the support frame by bolts, the top surface of the support frame is fixedly connected to the bottom surface of the furnace frame panel (313), and the bottom surfaces of the two support plates (309) are threadedly connected to the top surface of the support frame by bolts.

4. The vacuum roller coating equipment for powder modification according to claim 1, characterized in that: The bottom surface of the fixed base (305) is threadedly connected to the top surface of the support column (304) by bolts.

5. The vacuum roller coating equipment for powder modification according to claim 1, characterized in that: All four floating support rollers (5) are installed on the inner wall of the outer vacuum chamber (310), and the surfaces of the four outer vacuum chambers (310) are rotatably connected to the surface of the roller (312).

6. The vacuum roller coating equipment for powder modification according to claim 1, characterized in that: The clamping mechanism (4) includes two fixed ear plates (401), which are symmetrically arranged. The inner end faces of the two fixed ear plates (401) are fixedly connected to the surface of the outer cylinder (310) of the vacuum chamber. A clamping cylinder (402) is fixedly connected to the right side of the fixed ear plate (401). The left end face of the output rod of the clamping cylinder (402) extends through the right side of the fixed ear plate (401) to the left side of the fixed ear plate (401).

7. The vacuum roller coating equipment for powder modification according to claim 6, characterized in that: The outer cylinder (310) of the vacuum chamber has a through groove on its left side, and a sealing ring (404) is installed inside the groove.

8. The vacuum roller coating equipment for powder modification according to claim 1, characterized in that: The adjustment mechanism (2) includes an adjustment cylinder (201). The adjustment cylinder (201) is equipped with cylinder mounting seats on both the left and right sides. The bottom surface of the cylinder mounting seats is threaded to the top surface of the furnace frame (1) by bolts. A connecting plate (205) is fixedly connected to the left end of the output rod of the adjustment cylinder (201). A furnace door bracket (206) is provided on the left side of the connecting plate (205). The top surface of the inner side of the furnace door bracket (206) is threaded to the bottom surface of the connecting plate (205) by bolts. The top surface of the furnace door bracket (206) is fixedly connected to the top surface of the mounting plate (301).

9. The vacuum roller coating equipment for powder modification according to claim 8, characterized in that: The top surface of the furnace frame (1) is fixedly connected to two rails (202), which are symmetrically arranged. A slider (203) is provided on the surface of the rail (202). The inner side of the slider (203) is slidably connected to the surface of the rail (202). The top surface of the slider (203) is threadedly connected to the bottom surface of the furnace door bracket (206) by bolts.