A roller limiting structure
By designing the roller limit structure of seat blocks, rollers, limiting mechanisms and driving mechanisms, the problem of inconvenient roller limit adjustment of roller presses is solved, and the stability and safety of roller presses are improved.
Patent Information
- Application Number
- CN202510519068.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-24
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2045-04-24
AI Technical Summary
The roller limit structure of existing roller presses is inconvenient when adjusting distances, which affects the stability and safety of the equipment.
A roller limiting structure including a seat block, a roller, a limiting mechanism and a driving mechanism is designed. The distance between the two rollers is adjusted by the driving mechanism, and the rotation limiting component and the rotation locking component are avoided when the adjustment is difficult when the space is restricted.
The flexible adjustment of roller distance is achieved, the stability and safety of the roller press is improved, and the control problems when the adjustment components are loose and space is limited are avoided.
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Figure CN120024066B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of roller presses, and more particularly to a roller limiting structure. Background Art
[0002] Generally, a limiting block is required between the rollers of a roller press, mainly to control the position and stroke of the rollers, and to ensure the stability and safety of the roller press during operation. The limiting block is fixed to the relevant part of the machine tool by screws, and its function is to limit the moving position and distance of the component. Since the distance between the two rollers of the roller press is limited, it is inconvenient to adjust the distance when it is necessary to limit the two rollers.
[0003] Therefore, the present invention provides a roller limiting structure. Summary of the Invention
[0004] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.
[0005] The present invention provides a roller limiting structure, including seat blocks, the seat blocks are arranged in pairs, and the seat blocks are slidably connected to the roller press; and a roller rotatably arranged between the two seat blocks; further including: a limiting mechanism arranged on the seat blocks; and a driving mechanism arranged on the limiting mechanism, the driving mechanism is used to control the limiting mechanism to adjust the distance between the two rollers.
[0006] Specifically, when it is necessary to adjust the distance between two adjacent rollers on the roller press, the distance between the limiting mechanism and the seat block is controlled by the driving mechanism, and then the distance between the two rollers can be adjusted.
[0007] Preferably, the limiting mechanism includes: a limiting plate arranged on the side of the seat block, the limiting plate is fixedly connected to the roller press; and a cushion plate arranged between the seat block and the limiting plate.
[0008] Preferably, the driving mechanism includes an adjusting component, and the adjusting component includes: a moving part arranged on the limiting plate; and a control part arranged on the moving part, a semi-straight groove is opened on the cushion plate; the moving part is slidably connected to the semi-straight groove, and the moving part is slidably arranged in the seat block.
[0009] Preferably, the moving part includes: a slide bar sliding in a fixed groove, the fixed groove is opened in the seat block and the limiting plate; and a clamping block placed in a clamping groove, the clamping groove is opened in the limiting plate, the clamping groove is opened on the side of the fixed groove, and the clamping block is fixedly connected to the outer wall of the slide bar.
[0010] Preferably, the control member includes: a driving rod disposed in a rotating groove, the rotating groove being formed in the sliding rod, and the driving rod being capable of rotating in the rotating groove; a rotating plate fixedly connected to an end of the driving rod, the rotating plate being rotatably connected to the sliding rod; an arc groove formed in the rotating plate; a pulling rod sliding in a straightening groove, the straightening groove being formed in the sliding rod; a clamping ball sliding in a through groove, the through groove being formed in the sliding rod, the straightening groove communicating with the through groove, one end of the pulling rod being disposed in the arc groove, the other end of the pulling rod passing through the straightening groove and being fixedly connected to the clamping ball; and a ball groove formed on a side of the fixing groove, the clamping ball being adapted to the ball groove.
[0011] Preferably, the driving mechanism further includes a rotation limiting assembly, and the rotation limiting assembly includes: a fixed plate sliding in a plate groove, the plate groove being formed in the driving rod; a limiting spring fixedly connected to the fixed plate, one end of the limiting spring being fixedly connected to the fixed plate, and the other end of the limiting spring being fixedly connected to the bottom surface of the plate groove; and a fixed groove formed in a side wall of the rotating groove, the fixed groove being adapted to the fixed plate.
[0012] Specifically, the rotation limiting assembly can prevent accidental contact with the driving rod, which may cause the driving rod to rotate, resulting in loosening of the connection between the adjusting assembly and the seat block, and further causing the roller to move during fixation.
[0013] Preferably, the driving mechanism further includes a rotation clamping assembly, and the rotation clamping assembly includes: a rotation clamping member disposed in a rotation pressing groove, the rotation pressing groove being formed in the limiting plate, the rotation clamping member being movably connected in the rotation pressing groove, and two groups of the rotation clamping members being symmetrically disposed on a side of the driving rod; and a connecting member disposed between the two groups of the rotation clamping members, and the two groups of the rotation clamping members and the connecting member cooperate to clamp and rotate the driving rod.
[0014] Specifically, the rotation clamping assembly can avoid the problem that it is difficult to control the adjusting assembly when the space adjacent to the roller is small.
[0015] Preferably, the rotation clamping member includes: a pressing plate disposed on a side of the driving rod; an arc surface disposed on the pressing plate, the arc surface being adapted to the driving rod, and the arc surface being located directly above the fixed plate; a clamping bar fixedly connected to the arc surface, a strip groove being formed in the driving rod, and the clamping bar being adapted to the strip groove; a first magnetic block fixedly connected to an upper wall of the pressing plate; and a second magnetic block fixedly connected to the rotation pressing groove, and the first magnetic block can adsorb to the second magnetic block.
[0016] Preferably, the connecting member includes: a first connecting rod fixedly connected to one of the pressing plates; and a second connecting rod disposed on the first connecting rod, the first connecting rod being slidably connected to the second connecting rod, and the second connecting rod being fixedly connected to the other pressing plate.
[0017] The beneficial effects of the present invention are as follows: By controlling the distance between the limiting mechanism and the seat block through the driving mechanism, the distance between the two roller wheels can be adjusted; through the rotation-limiting component, accidental contact with the driving rod can be avoided, preventing the driving rod from rotating, which may cause the connection between the adjusting component and the seat block to become loose, and further causing the roller wheel to move during fixation; through the rotation-locking component, the problem that it is difficult to control the adjusting component when the space adjacent to the roller wheel is small can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a schematic structural diagram of the whole of the present invention;
[0019] Figure 2 is a schematic structural diagram of the limiting mechanism in the present invention;
[0020] Figure 3 is a schematic structural diagram of the limiting plate in the present invention;
[0021] Figure 4 is a schematic structural diagram of the backing plate in the present invention;
[0022] Figure 5 is a schematic structural diagram of the rotation-limiting component in the present invention;
[0023] Figure 6 is a schematic structural diagram of the driving rod in the present invention;
[0024] Figure 7 is Figure 6 a schematic enlarged structural diagram of part A in
[0025] Figure 8 is a schematic structural diagram of the connecting piece in the present invention;
[0026] Figure 9 is a schematic structural diagram of the rotation-locking piece in the present invention.
[0027] Description of the reference numerals: 1, seat block; 2, roller wheel; 3, limiting mechanism; 31, limiting plate; 32, backing plate; 33, semi-straight groove; 4, driving mechanism; 41, adjusting component; 42, rotation-limiting component; 43, rotation-locking component; 411, moving part; 412, control part; 421, plate groove; 422, fixed plate; 423, limiting spring; 424, fixed groove; 431, rotation-locking piece; 432, connecting piece; 433, rotation pressure groove; 4111, fixed groove; 4112, sliding rod; 4113, clamping groove; 4114, clamping block; 4121, rotation groove; 4122, driving rod; 4123, rotating plate; 4124, arc groove; 4125, limiting straight groove; 4126, pull rod; 4127, through groove; 4128, clamping ball; 4129, ball groove; 4311, pressing plate; 4312, arc surface; 4313, clamping strip; 4314, strip groove; 4315, first magnet; 4316, second magnet; 4321, first connecting rod; 4322, second connecting rod. Detailed implementation manners
[0028] The subject matter described herein will now be discussed with reference to exemplary implementation manners. It should be understood that discussing these implementation manners is only to enable those skilled in the art to better understand and thus implement the subject matter described herein. Without departing from the scope of protection of the content of this specification, changes can be made to the functions and arrangements of the elements discussed. Each example can omit, substitute, or add various processes or components as needed. Additionally, the features described relative to some examples can also be combined in other examples.
[0029] Example: As Figures 1 to 9 shown, a roller limiting structure according to an embodiment of the present invention is hereinafter referred to with emphasis to Figure 1 , Figure 2 , Figure 3 , and includes: a seat block 1, the seat blocks 1 being provided in pairs, the seat blocks 1 being slidably connected to a roller press; and a roller 2 rotatably provided between the two seat blocks 1; further includes: a limiting mechanism 3 provided on the seat block 1; and a driving mechanism 4 provided on the limiting mechanism 3, the driving mechanism 4 being used to control the limiting mechanism 3 to adjust the distance between the two rollers 2.
[0030] Specifically, when it is necessary to adjust the distance between two adjacent rollers 2 on the roller press, the distance between the limiting mechanism 3 and the seat block 1 is controlled by the driving mechanism 4, and thus the distance between the two rollers 2 can be adjusted.
[0031] As Figures 1 to 9 shown, the limiting mechanism 3 includes: a limiting plate 31 provided on the side of the seat block 1, the limiting plate 31 being fixedly connected to the roller press; and a spacer 32 provided between the seat block 1 and the limiting plate 31. The number of the spacers 32 increases or decreases according to the distance adjusted by the roller 2.
[0032] Please refer with emphasis to Figure 3 , Figure 4 , Figure 5 , Figure 6 , the driving mechanism 4 includes an adjusting assembly 41, the adjusting assembly 41 including: a moving member 411 provided on the limiting plate 31; and a control member 412 provided on the moving member 411, a semi-straight groove 33 being formed on the spacer 32; the moving member 411 being slidably connected to the semi-straight groove 33, the moving member 411 being slidably provided within the seat block 1.
[0033] Specifically, the control member 412 can control the moving member 411 to move on the seat block 1. When the position of the moving member 411 moves within the seat block 1, the number of the spacers 32 between the seat block 1 and the limiting plate 31 can be increased or decreased, and thus the position of the roller 2 can be adjusted.
[0034] Please refer specifically to Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 , the moving member 411 includes: a sliding rod 4112 that slides within a fixed groove 4111, the fixed groove 4111 being formed in the seat block 1 and the limiting plate 31; and a clamping block 4114 placed within a clamping groove 4113, the clamping groove 4113 being formed in the limiting plate 31, the clamping groove 4113 being formed on the side of the fixed groove 4111, and the clamping block 4114 being fixedly connected to the outer wall of the sliding rod 4112.
[0035] Specifically, the size of the fixed groove 4111 is adapted to the size of the semi-straight groove 33. The clamping block 4114 prevents the sliding rod 4112 from rotating, and the clamping block 4114 fixedly connects the sliding rod 4112 to the limiting plate 31.
[0036] Please refer specifically to Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 , the control member 412 includes:
[0037] A driving rod 4122 placed within a rotating groove 4121, the rotating groove 4121 being formed in the sliding rod 4112, and the driving rod 4122 being able to rotate within the rotating groove 4121; a rotating plate 4123 fixedly connected to the end of the driving rod 4122, the rotating plate 4123 being rotatably connected to the sliding rod 4112; an arc groove 4124 formed in the rotating plate 4123; a pull rod 4126 that slides within a limiting straight groove 4125, the limiting straight groove 4125 being formed in the sliding rod 4112; a clamping ball 4128 that slides within a through groove 4127, the through groove 4127 being formed in the sliding rod 4112, the limiting straight groove 4125 communicating with the through groove 4127, one end of the pull rod 4126 being placed within the arc groove 4124, and the other end of the pull rod 4126 passing through the limiting straight groove 4125 and being fixedly connected to the clamping ball 4128; and a ball groove 4129 formed on the side of the fixed groove 4111, the clamping ball 4128 being adapted to the ball groove 4129.
[0038] Specifically, two arc grooves 4124 are formed in the rotating plate 4123, and correspondingly, two pull rods 4126 and two clamping balls 4128 are provided. By providing two clamping balls 4128, it is beneficial to make the connection between the component 41 and the seat block 1 more stable. One end of the pull rod 4126 is placed within the arc groove 4124, and the other end of the pull rod 4126 passes through the limiting straight groove 4125 and is fixedly connected to the clamping ball 4128. The distance between adjacent ball grooves 4129 is adapted to the thickness of the backing plate 32.
[0039] Specifically, when the distance between the rollers 2 is fixed, one end of the pull rod 4126 is placed at the outer end of the arc groove 4124, the other end of the pull rod 4126 passes through the outer end of the straight groove 4125, one end of the clamping ball 4128 is placed in the ball groove 4129, and the other end of the clamping ball 4128 is placed in the through groove 4127. At this time, the adjusting assembly 41 is fixed to the seat block 1, and further the position of the limiting assembly and the seat block 1 is fixed, and the position of the roller 2 cannot be adjusted; when the position of the roller 2 needs to be adjusted, rotate the driving rod 4122. The rotation of the driving rod 4122 drives the rotating plate 4123 and the arc groove 4124 to rotate. The rotation of the arc groove 4124 drives the pull rod 4126 and the clamping ball 4128 to move along the straight groove 4125 towards the center of the axis of the driving rod 4122. When one end of the pull rod 4126 is placed at the inner end of the arc groove 4124 point, the clamping ball 4128 disengages from the ball groove 4129 and completely enters the through groove 4127. At this time, the adjusting assembly 41 is no longer fixed to the seat block 1, and further the seat block 1 and the roller 2 can be moved. The movement of the seat block 1 changes the distance between the seat block 1 and the limiting plate 31. At this time, the number of the cushion plates 32 between the seat block 1 and the limiting plate 31 can be increased or decreased according to the position adjustment of the roller 2. And because one end of the shape of the semi-straight groove 33 is placed on the cushion plate 32 and the other end of the semi-straight groove 33 penetrates through the cushion plate 32, when the installation space is limited, it is not necessary to completely separate the adjusting assembly 41 from the seat block 1. Only by moving the adjusting assembly 41 in the seat block 1 can the replacement of the cushion plate 32 be realized, and the position adjustment and limitation of the roller 2 can be realized.
[0040] Please refer specifically to Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 The driving mechanism 4 further includes a rotation limiting assembly 42. The rotation limiting assembly 42 includes: a fixed plate 422 sliding in the plate groove 421, and the plate groove 421 is opened on the driving rod 4122; a limiting spring 423 fixed on the fixed plate 422, one end of the limiting spring 423 is fixed to the fixed plate 422, and the other end of the limiting spring 423 is fixed to the bottom surface of the plate groove 421; and a fixed groove 424 opened on the side wall of the rotating groove 4121, and the fixed groove 424 is adapted to the fixed plate 422.
[0041] Specifically, when the distance between the rollers 2 is fixed, the limiting spring 423 is in a normal state. One end of the fixed plate 422 is placed in the fixed slot 424, and the other end of the fixed plate 422 is placed in the plate slot 421. At this time, the driving rod 4122 is restricted and cannot rotate. When the position of the roller 2 needs to be adjusted, the staff holds the fixed plate 422, and the fixed plate 422 moves towards the axis of the driving rod 4122, causing the limiting spring 423 to contract. When the fixed plate 422 disengages from the fixed slot 424, the driving rod 4122 can rotate to drive the rotating plate 4123 and the arc slot 4124 to rotate. The rotation limiting assembly 42 can prevent accidental contact with the driving rod 4122, which may cause the driving rod 4122 to rotate, resulting in the loosening of the connection between the adjusting assembly 41 and the seat block 1, and further causing the roller 2 to move when fixed.
[0042] Please refer specifically to Figure 2 、 Figure 8 、 Figure 9 The driving mechanism 4 further includes a clamping and rotating assembly 43. The clamping and rotating assembly 43 includes: a clamping and rotating member 431 disposed in the rotation pressing groove 433. The rotation pressing groove 433 is formed in the limiting plate 31. The clamping and rotating member 431 is movably connected in the rotation pressing groove 433. Two groups of the clamping and rotating members 431 are symmetrically disposed on the side of the driving rod 4122; and a connecting member 432 disposed between the two groups of the clamping and rotating members 431. The two groups of the clamping and rotating members 431 and the connecting member 432 cooperate to clamp the driving rod 4122 for rotation.
[0043] Specifically, the clamping and rotating assembly 43 can avoid the problem that it is difficult to control the adjusting assembly 41 when the adjacent space of the roller 2 is small.
[0044] Please refer specifically to Figure 2 、 Figure 8 、 Figure 9 The clamping and rotating member 431 includes: a pressing plate 4311 disposed on the side of the driving rod 4122; a cambered surface 4312 disposed on the pressing plate 4311. The cambered surface 4312 is adapted to the driving rod 4122, and the cambered surface 4312 is located directly above the fixed plate 422; a clamping bar 4313 fixedly connected to the cambered surface 4312. A strip groove 4314 is formed in the driving rod 4122, and the clamping bar 4313 is adapted to the strip groove 4314; a first magnet 4315 fixedly connected to the upper wall of the pressing plate 4311; and a second magnet 4316 fixedly connected to the rotation pressing groove 433. The first magnet 4315 can adsorb to the second magnet 4316.
[0045] Please refer specifically to Figure 2 、 Figure 8 、 Figure 9, the connecting member 432 includes: a first connecting rod 4321 fixedly connected to one of the pressing plates 4311; and a second connecting rod 4322 disposed on the first connecting rod 4321, the first connecting rod 4321 is slidably connected to the second connecting rod 4322, and the second connecting rod 4322 is fixedly connected to the other pressing plate 4311.
[0046] Specifically, the axis of the rotation pressing groove 433 is in the same position as the axis of the driving rod 4122, and the angles at both ends of the rotation pressing groove 433 are adapted to the angles at both ends of the arc groove 4124. The connecting member 432 is used to connect the two pressing plates 4311. When the adjacent space between the rollers 2 is small and the distance between the rollers 2 is fixed, the first magnet 4315 and the second magnet 4316 are adsorbed and connected. At this time, the pressing plate 4311 is placed at the uppermost point of the rotation pressing groove 433, and the distance between the first connecting rod 4321 and the second connecting rod 4322 is the maximum value at this time. When the position of the roller 2 needs to be adjusted, the two pressing plates 4311 are moved towards the axis of the driving rod 4122. At this time, the first magnet 4315 and the second magnet 4316 are separated, and the distance between the first connecting rod 4321 and the second connecting rod 4322 is shortened. The movement of the pressing plate 4311 towards the axis of the driving rod 4122 drives the fixed plate 422 to move towards the axis of the driving rod 4122. When the arc surface 4312 is in contact with the outer wall of the driving rod 4122, the fixed plate 422 completely enters the plate groove 421, and the clamping strip 4313 enters the strip groove 4314. At this time, the pressing plate 4311 is rotated. The pressing plate 4311 rotates around the axis of the driving rod 4122 in the rotation pressing groove 433. The rotation of the pressing plate 4311 drives the driving rod 4122 to rotate, so that the limiting mechanism 3 can adjust the position of the roller 2 and limit the roller 2. Furthermore, through the clamping and rotating assembly 43, it is also convenient to adjust the position of the roller 2 when the adjacent space between the rollers 2 is small.
[0047] The above describes the embodiments of the specific implementation manner, but this embodiment is not limited to the above specific implementation manner. The above specific implementation manner is only illustrative and not restrictive. Under the inspiration of this embodiment, those of ordinary skill in the art can also make many forms, all of which fall within the protection scope of this embodiment.
Claims
1. A roller limiting structure, comprising: Seat blocks (1), said seat blocks (1) being arranged in pairs, said seat blocks (1) being slidably connected to the roller press; And a roller (2) rotatably arranged between the two seat blocks (1); characterized in that it further comprises: A limiting mechanism (3) arranged on the seat block (1); and a driving mechanism (4) arranged on the limiting mechanism (3), said driving mechanism (4) being used to control the limiting mechanism (3) to adjust the distance between the two rollers (2); said driving mechanism (4) comprises an adjusting component (41), and said limiting mechanism (3) comprises: a limiting plate (31) arranged on the side of the seat block (1), and said adjusting component (41) comprises: a moving member (411) arranged on the limiting plate (31); said moving member (411) comprises: a sliding rod (4112) sliding in a fixed groove (4111), said fixed groove (4111) being opened in the seat block (1) and the limiting plate (31); and a clamping block (4114) placed in a clamping groove (4113), said clamping groove (4113) being opened in the limiting plate (31), said clamping groove (4113) being opened on the side of the fixed groove (4111), and said clamping block (4114) being fixedly connected to the outer wall of the sliding rod (4112); Said adjusting component (41) comprises: a control member (412) arranged on the moving member (411); Said control member (412) comprises: a driving rod (4122) placed in a rotating groove (4121), said rotating groove (4121) being opened in the sliding rod (4112), and said driving rod (4122) being able to rotate in the rotating groove (4121); a rotating plate (4123) fixedly connected to the end of the driving rod (4122), said rotating plate (4123) being rotatably connected to the sliding rod (4112); Said driving mechanism (4) further comprises a rotation limiting component (42), and said rotation limiting component (42) comprises: a fixed plate (422) sliding in a plate groove (421), said plate groove (421) being opened on the driving rod (4122); a limiting spring (423) fixedly connected to the fixed plate (422), one end of said limiting spring (423) being fixedly connected to the fixed plate (422), and the other end of said limiting spring (423) being fixedly connected to the bottom surface of the plate groove (421); and a fixed groove (424) opened on the side wall of the rotating groove (4121), said fixed groove (424) being adapted to the fixed plate (422); Said limiting plate (31) is fixedly connected to the roller press; and a cushion plate (32) arranged between the seat block (1) and the limiting plate (31); A semi-straight groove (33) is opened on said cushion plate (32); and said moving member (411) is slidably connected to the semi-straight groove (33), and said moving member (411) is slidably arranged in the seat block (1); An arc groove (4124) opened on the rotating plate (4123); a pull rod (4126) sliding in a straightening groove (4125), the straightening groove (4125) being opened in a sliding rod (4112); a clamping ball (4128) sliding on a through groove (4127), the through groove (4127) being opened in the sliding rod (4112), the straightening groove (4125) communicating with the through groove (4127), one end of the pull rod (4126) being placed in the arc groove (4124), and the other end of the pull rod (4126) passing through the straightening groove (4125) and being fixedly connected to the clamping ball (4128); and a ball groove (4129) opened on the side of the fixing groove (4111), the clamping ball (4128) being adapted to the ball groove (4129); The driving mechanism (4) further includes a clamping and rotating assembly (43), and the clamping and rotating assembly (43) includes: a clamping and rotating member (431) arranged in a rotating and pressing groove (433), the rotating and pressing groove (433) being opened in a limiting plate (31), the clamping and rotating member (431) being movably connected in the rotating and pressing groove (433), and two groups of the clamping and rotating members (431) being symmetrically arranged on the side of the driving rod (4122); and a connecting member (432) arranged between the two groups of the clamping and rotating members (431), and the two groups of the clamping and rotating members (431) and the connecting member (432) cooperate to clamp the driving rod (4122) for rotation; The clamping and rotating member (431) includes: a pressing plate (4311) arranged on the side of the driving rod (4122); an arc surface (4312) arranged on the pressing plate (4311), the arc surface (4312) being adapted to the driving rod (4122), and the arc surface (4312) being located directly above a fixed plate (422); a clamping strip (4313) fixedly connected to the arc surface (4312), a strip groove (4314) being opened on the driving rod (4122), and the clamping strip (4313) being adapted to the strip groove (4314); a first magnet (4315) fixedly connected to the upper wall of the pressing plate (4311); and a second magnet (4316) fixedly connected to the rotating and pressing groove (433), and the first magnet (4315) can adsorb to the second magnet (4316); The connecting member (432) includes: a first connecting rod (4321) fixedly connected to one of the pressing plates (4311); and a second connecting rod (4322) arranged on the first connecting rod (4321), the first connecting rod (4321) being slidably connected to the second connecting rod (4322), and the second connecting rod (4322) being fixedly connected to the other pressing plate (4311).
Citation Information
Patent Citations
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CN116329275A
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