CN113427536B - Transformer insulating paper cutting equipment - Google Patents
Transformer insulating paper cutting equipment Download PDFInfo
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- CN113427536B CN113427536B CN202110985989.6A CN202110985989A CN113427536B CN 113427536 B CN113427536 B CN 113427536B CN 202110985989 A CN202110985989 A CN 202110985989A CN 113427536 B CN113427536 B CN 113427536B
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- Prior art keywords
- feeding
- cavity
- pan feeding
- transmission
- eccentric
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
- B26D1/04—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member
- B26D1/06—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates
- B26D1/08—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates of the guillotine type
- B26D1/09—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates of the guillotine type with a plurality of cutting members
- B26D1/095—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates of the guillotine type with a plurality of cutting members for thin material, e.g. for sheets, strips or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D5/08—Means for actuating the cutting member to effect the cut
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
- B65H35/04—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators
- B65H35/06—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators from or with blade, e.g. shear-blade, cutters or perforators
Abstract
The invention discloses a transformer insulating paper cutting device which comprises a machine shell, wherein a main operation cavity is arranged near the left end in the machine shell, two mechanical contact cavities which are symmetrical up and down about a horizontal central axis are arranged in the main operation cavity, a mechanical linkage mechanism is arranged in each mechanical contact cavity, a transmission cavity is arranged at the left end of each mechanical contact cavity, a friction feeding mechanism is arranged in each feeding operation cavity, the periodical motion of a cutting tool is realized through an eccentric moving mechanism formed by an eccentric wheel and a circular sliding block, the cutting action is finished, and meanwhile, the periodical cutting signals are converted into the periodical feeding motion of the friction feeding mechanism through the mechanical linkage mechanism in a mode of mechanically driving a movable contact belt, so that the linkage of a plurality of mechanisms is realized, and the feeding of insulating paper is realized through the transmission of the sliding block and a friction wheel.
Description
Technical Field
The invention relates to the field of cutting, in particular to a cutting device for insulating paper of a transformer.
Background
The insulating paper board is a common insulating material, is used as an electric insulating paper board at a low temperature, is an electrical paper board for motors, electrical appliances, instruments, switch transformers and other components, and needs to be cut into a certain size for packaging after being dried and formed; shearing machines or manual work are mostly used for shearing at present. When the insulating paperboard is cut by the shearing machine, the insulating paperboard is easy to incline during cutting by directly conveying and cutting, so that the cutting quality of the insulating paperboard is influenced, and the waste of materials is caused; the existing manual shearing workers have high labor intensity and low efficiency and can not meet the production requirement.
Disclosure of Invention
The invention aims to provide a cutting device for insulating paper of a transformer, which is used for overcoming the defects in the prior art.
The equipment for cutting the insulating paper of the transformer comprises a shell, wherein a main operation cavity is arranged near the left end in the shell, two mechanical contact cavities which are symmetrical up and down about a horizontal central axis are arranged in the main operation cavity, a mechanical linkage mechanism is arranged in the mechanical contact cavities, a transmission cavity is arranged at the left end of each mechanical contact cavity, an eccentric moving mechanism is arranged in each transmission cavity, a feeding auxiliary cavity is arranged at the right end of the shell, a feeding block is fixedly arranged at the right upper end of the shell, a feeding operation cavity is arranged in the feeding block, a friction feeding mechanism is arranged in the feeding operation cavity, and the friction feeding mechanism is used for conveying the insulating paper of the transformer;
the eccentric moving mechanism comprises an eccentric transmission motor fixedly arranged at the left end wall of the transmission cavity, the right end of the eccentric transmission motor is in driving connection with a transmission shaft, a driving gear is fixedly arranged at the middle part of the transmission shaft, the right end of the transmission shaft is rotatably connected at the right end wall of the transmission cavity, a through hole is formed in the upper end of the right end wall of the transmission cavity, an eccentric output shaft is rotatably arranged in the through hole, a driven gear is fixedly connected at the left end face of the eccentric output shaft and can be in meshing transmission with the driving gear, an eccentric wheel is fixedly connected at the right end of the eccentric output shaft, an annular slide block is slidably arranged on the eccentric wheel, two linkage fixed blocks which are arranged front and back are fixedly arranged at the right end of the annular slide block, a fixed chute is fixedly arranged at the position of the inner end face of the linkage fixed block, and an I-shaped slide block is slidably connected on the fixed chute, the lower end of the I-shaped sliding block is fixedly connected with a vertical positioning sliding rod, a lower end fixing block is fixedly arranged at the lower end wall of the mechanical linkage mechanism, and a vertical fixing through hole is fixedly formed in the middle of the lower end fixing block.
Further technical scheme, friction pan feeding mechanism includes fixed connection and is in the vertical pan feeding operation piece of pan feeding operation chamber rear end face department, the fixed vertical pan feeding spout that is equipped with in the vertical pan feeding operation piece, pan feeding operation chamber upper end wall department is fixed and is equipped with the pan feeding pneumatic cylinder, pan feeding pneumatic cylinder lower extreme sliding connection hydraulic stem, hydraulic stem lower extreme fixed connection pan feeding motor fixed block, the fixed pan feeding motor that is equipped with of terminal surface department before the pan feeding motor fixed block, pan feeding motor front end drive links the material axle of inserting, the fixed pan feeding friction pulley that is equipped with in material axle front end.
According to the technical scheme, the left end face of the feeding motor fixing block is fixedly connected with a sliding pin, the rear end of the sliding pin can slide in the vertical feeding chute, and a driving roller is arranged in the middle of the sliding pin in a rotating mode.
According to the technical scheme, a rotating shaft is rotatably arranged at the rear end wall of the feeding auxiliary cavity, and the middle of the rotating shaft is rotatably connected with a feeding driven roller.
According to the technical scheme, a contact sensor is fixedly arranged on the front end face of the linkage fixing block, a control module is fixedly arranged on the upper end wall of the feeding operation cavity, and when the I-shaped sliding block touches the contact sensor, the contact sensor excites the control module.
According to the technical scheme, a discharge hole is fixedly formed in the left end of the main operation cavity, and a feeding hole is fixedly formed in the right end of the main operation cavity.
The invention has the beneficial effects that: through the eccentric moving mechanism, the periodical motion of the cutting tool is realized by the eccentric moving mechanism consisting of the eccentric wheel and the circular sliding block, the cutting action is completed, and meanwhile, the periodical cutting signal is converted into the periodical feeding motion of the friction feeding mechanism by the mechanical linkage mechanism and the mode of mechanically driving a movable contact of a belt, so that the linkage of a plurality of mechanisms is realized, and the feeding of the insulating paper is realized by the transmission of the sliding block and the friction wheel.
Drawings
FIG. 1 is a schematic external view of the present invention;
FIG. 2 is a schematic diagram of the overall structure of a cutting device for insulation paper of a transformer according to the present invention;
FIG. 3 is an enlarged, fragmentary view of FIG. 2 of the present invention;
FIG. 4 is a schematic view of A-A of FIG. 3 according to the present invention;
FIG. 5 is a schematic view of B-B of FIG. 3 according to the present invention.
Detailed Description
In order that the objects and advantages of the present invention will be more clearly understood, the following detailed description of the invention with reference to the examples should be understood as the following text only describing a transformer paper cutting apparatus or several specific embodiments of the invention, and not strictly limiting the scope of protection specifically claimed by the invention, as used herein, the terms upper, lower, left and right are not limited to their strict geometric definitions, but include tolerances for machining or human error rationality and inconsistency, the following detailed description of which is given in detail:
referring to fig. 1-5, the transformer insulation paper cutting device according to the embodiment of the present invention includes a housing 10, a main operation cavity 33 is disposed near a left end inside the housing 10, two mechanical contact cavities 11 that are vertically symmetrical with respect to a horizontal central axis are disposed inside the main operation cavity 33, a mechanical linkage mechanism 13 is disposed inside the mechanical contact cavities 11, a transmission cavity 14 is disposed at a left end of the mechanical contact cavities 11, an eccentric moving mechanism 12 is disposed in the transmission cavity 14, a feeding auxiliary cavity 36 is disposed at a right end of the housing 10, a feeding block 51 is fixedly disposed at a right upper end of the housing 10, a feeding operation cavity 39 is disposed inside the feeding block 51, a friction feeding mechanism 53 is disposed inside the feeding operation cavity 39, and the friction feeding mechanism 53 is used for conveying transformer insulation paper;
the eccentric moving mechanism 12 comprises an eccentric transmission motor 15 fixedly arranged at the left end wall of the transmission cavity 14, a transmission shaft 16 is connected to the right end of the eccentric transmission motor 15 in a driving manner, a driving gear 17 is fixedly arranged at the middle of the transmission shaft 16, the right end of the transmission shaft 16 is rotatably connected to the right end wall of the transmission cavity 14, a through hole 18 is formed in the upper end of the right end wall of the transmission cavity 14, an eccentric output shaft 19 is rotatably arranged in the through hole 18, a driven gear 20 is fixedly connected to the left end face of the eccentric output shaft 19, the driven gear 20 can be meshed with the driving gear 17 for transmission, an eccentric wheel 21 is fixedly connected to the right end of the eccentric output shaft 19, an annular sliding block 22 is slidably arranged on the eccentric wheel 21, two linkage fixing blocks 23 arranged front and back are fixedly arranged at the right end of the annular sliding block 22, and a fixed sliding chute 24 is fixedly arranged at the position of the linkage fixing block 23, which is close to the inner end face, sliding connection I slider 25 on the fixed spout 24, the vertical location slide bar 26 of I slider 25 lower extreme fixed connection, the fixed lower extreme fixed block 27 that is equipped with of mechanical linkage 13 lower extreme wall department, the fixed vertical fixing hole 28 that is equipped with in middle part of lower extreme fixed block 27, vertical location slide bar 26 can slide from top to bottom in the vertical fixing hole 28.
Beneficially, friction pan feeding mechanism 53 is including fixed connection in the vertical pan feeding operation piece 40 of pan feeding operation chamber 39 rear end face department, fixed vertical pan feeding spout 41 that is equipped with in the vertical pan feeding operation piece 40, pan feeding operation chamber 39 upper end wall department is fixed and is equipped with pan feeding pneumatic cylinder 49, pan feeding pneumatic cylinder 49 lower extreme sliding connection hydraulic stem 50, hydraulic stem 50 lower extreme fixed connection pan feeding motor fixed block 44, pan feeding motor fixed block 44 front end face department is fixed and is equipped with pan feeding motor 45, pan feeding motor 45 front end drive is connected into material axle 46, it is fixed with pan feeding friction pulley 47 to go into material axle 46 front end.
Beneficially, a sliding pin 42 is fixedly connected to the left end face of the feeding motor fixing block 44, the rear end of the sliding pin 42 can slide in the vertical feeding chute 41, a driving roller 43 is rotatably arranged in the middle of the sliding pin 42, and the driving roller 43 can be in friction transmission with the feeding friction wheel 47.
Advantageously, a rotating shaft 37 is rotatably arranged at the rear end wall of the feeding auxiliary cavity 36, the middle part of the rotating shaft 37 is rotatably connected with a feeding driven roller 38, and the feeding driven roller 38 can be in friction transmission with the sliding pin 42 for feeding the insulation paper to be cut into the eccentric moving mechanism 12.
Beneficially, a contact sensor 32 is fixedly arranged on the front end face of the linkage fixing block 23, a control module 48 is fixedly arranged on the upper end wall of the feeding operation cavity 39, when the i-shaped slider 25 touches the contact sensor 32, the contact sensor 32 excites the control module 48, and the control module 48 controls the start and stop of the feeding hydraulic cylinder 49 and the feeding motor 45.
Beneficially, the left end of the main operation cavity 33 is fixedly provided with the discharge hole 34, and the right end of the main operation cavity 33 is fixedly provided with the feeding hole 52, and the feeding hole 52 is used for placing insulating paper.
The invention relates to a device for cutting insulating paper of a transformer, which comprises the following working procedures:
when the insulation paper is cut, firstly, the eccentric transmission motor 15 is started to drive the transmission shaft 16 to rotate, the transmission shaft 16 rotates to drive the driving gear 17 to rotate, the driving gear 17 is in meshing transmission with the driven gear 20, so that the driven gear 20 rotates, the driven gear 20 rotates to drive the eccentric output shaft 19 to rotate, the eccentric output shaft 19 rotates to drive the eccentric wheel 21 to rotate, and the eccentric wheel 21 rotates around the eccentric output shaft 19 to drive the annular slide block 22 to move up and down;
at the moment, the annular slide block 22 moves up and down to drive the linkage fixing block 23 and the fixed chute 24 to move up and down, the fixed chute 24 moves to drive the whole of the I-shaped slide block 25 and the vertical positioning slide rod 26 to slide up and down along the vertical fixing through hole 28, the I-shaped slide block 25 moves to the right side to be contacted with the contact sensor 32, the contact sensor 32 excites the control module 48, the control module 48 controls the feeding motor 45 and the feeding hydraulic cylinder 49 to be started, the feeding hydraulic cylinder 49 is started to drive the feeding motor fixing block 44 to move downwards, the feeding motor 45 is started to drive the feeding shaft 46 to rotate, the feeding shaft 46 rotates to drive the feeding friction wheel 47 to rotate, the feeding friction wheel 47 is in friction transmission with the driving roller 43, and the driving roller 43 is in fit transmission with the feeding driven roller 38 to convey the insulating paper into the main operation cavity 33;
at this time, the annular slider 22 moves up and down, the annular slider 22 drives the left eccentric fixing block 29 to move up and down, and the cutter fixing block 30 and the cutting cutter 31 located at the upper end of the left eccentric fixing block 29 are driven by the annular slider 22 to periodically approach and cut the insulating paper.
The invention has the beneficial effects that: through the eccentric moving mechanism, the periodical motion of the cutting tool is realized by the eccentric moving mechanism consisting of the eccentric wheel and the circular sliding block, the cutting action is completed, and meanwhile, the periodical cutting signal is converted into the periodical feeding motion of the friction feeding mechanism by the mechanical linkage mechanism and the mode of mechanically driving a movable contact of a belt, so that the linkage of a plurality of mechanisms is realized, and the feeding of the insulating paper is realized by the transmission of the sliding block and the friction wheel.
It will be apparent to those skilled in the art that various modifications may be made to the above embodiments without departing from the general spirit and concept of the invention. All falling within the scope of protection of the present invention. The protection scheme of the invention is subject to the appended claims.
Claims (6)
1. The utility model provides a transformer insulated paper equipment of cutting out, includes the casing, its characterized in that: a main operation cavity is arranged at the left end inside the casing, two mechanical contact cavities which are symmetrical up and down about a horizontal central axis are arranged inside the main operation cavity, a mechanical linkage mechanism is arranged inside the mechanical contact cavities, a transmission cavity is arranged at the left end of the mechanical contact cavities, an eccentric moving mechanism is arranged in the transmission cavity, a feeding auxiliary cavity is arranged at the right end of the casing, a feeding block is fixedly arranged at the upper right end of the casing, a feeding operation cavity is arranged inside the feeding block, a friction feeding mechanism is arranged inside the feeding operation cavity, and the friction feeding mechanism is used for conveying transformer insulating paper;
the eccentric moving mechanism comprises an eccentric transmission motor fixedly arranged at the left end wall of the transmission cavity, the right end of the eccentric transmission motor is in driving connection with a transmission shaft, a driving gear is fixedly arranged at the middle part of the transmission shaft, the right end of the transmission shaft is rotatably connected at the right end wall of the transmission cavity, a through hole is formed in the upper end of the right end wall of the transmission cavity, an eccentric output shaft is rotatably arranged in the through hole, a driven gear is fixedly connected at the left end face of the eccentric output shaft and can be in meshing transmission with the driving gear, an eccentric wheel is fixedly connected at the right end of the eccentric output shaft, an annular slide block is slidably arranged on the eccentric wheel, two linkage fixed blocks which are arranged front and back are fixedly arranged at the right end of the annular slide block, a fixed chute is fixedly arranged at the position of the inner end face of the linkage fixed block, and an I-shaped slide block is slidably connected on the fixed chute, the lower end of the I-shaped sliding block is fixedly connected with a vertical positioning sliding rod, a lower end fixing block is fixedly arranged at the lower end wall of the mechanical linkage mechanism, and a vertical fixing through hole is fixedly formed in the middle of the lower end fixing block.
2. The transformer insulation paper cutting device according to claim 1, wherein: the friction pan feeding mechanism includes fixed connection and is in the vertical pan feeding operation piece of pan feeding operation chamber rear end face department, the fixed vertical pan feeding spout that is equipped with in the vertical pan feeding operation piece, the fixed pan feeding pneumatic cylinder that is equipped with of pan feeding operation chamber upper end wall department, pan feeding pneumatic cylinder lower extreme sliding connection hydraulic stem, hydraulic stem lower extreme fixed connection pan feeding motor fixed block, the fixed pan feeding motor that is equipped with of pan feeding motor fixed block front end face department, pan feeding motor front end drive even inserts the material axle, the fixed pan feeding friction pulley that is equipped with of material axle front end.
3. The transformer insulation paper cutting device according to claim 2, wherein: the feeding motor fixing block is characterized in that a sliding pin is fixedly connected to the left end face of the feeding motor fixing block, the rear end of the sliding pin can slide in the vertical feeding chute, and a driving roller is arranged in the middle of the sliding pin in a rotating mode.
4. The transformer insulation paper cutting device according to claim 2, wherein: the rear end wall of the feeding auxiliary cavity is rotatably provided with a rotating shaft, and the middle of the rotating shaft is rotatably connected with a feeding driven roller.
5. The transformer insulation paper cutting device according to claim 1, wherein: the feed inlet operation cavity is characterized in that a contact sensor is fixedly arranged at the front end face of the linkage fixing block, and a control module is fixedly arranged at the upper end wall of the feed inlet operation cavity.
6. The transformer insulation paper cutting device according to claim 1, wherein: the left end of the main operation cavity is fixedly provided with a discharge hole, and the right end of the main operation cavity is fixedly provided with a feeding hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110985989.6A CN113427536B (en) | 2021-08-26 | 2021-08-26 | Transformer insulating paper cutting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110985989.6A CN113427536B (en) | 2021-08-26 | 2021-08-26 | Transformer insulating paper cutting equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113427536A CN113427536A (en) | 2021-09-24 |
| CN113427536B true CN113427536B (en) | 2021-10-29 |
Family
ID=77798015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110985989.6A Active CN113427536B (en) | 2021-08-26 | 2021-08-26 | Transformer insulating paper cutting equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113427536B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU704778A1 (en) * | 1973-07-06 | 1979-12-25 | Феб Полиграф Лейпциг Комбинат Фюр Полиграфише Машинен Унд Аусрюстунген(Инопредприятие) | Method of trimming paper stacks |
| JP2000317883A (en) * | 1999-05-10 | 2000-11-21 | Takatori Corp | Cutter reciprocating mechanism in cutting machine |
| CN203095263U (en) * | 2012-12-26 | 2013-07-31 | 无锡顶一电机有限公司 | Insulation paper tape cutting machine |
| CN105058487A (en) * | 2015-08-28 | 2015-11-18 | 王奇勇 | Sugarcane peeling and splitting machine |
| CN110091374A (en) * | 2019-06-05 | 2019-08-06 | 广州佶兔工业设计有限公司 | A kind of substrate and its manufacturing method |
| CN111230941A (en) * | 2020-01-20 | 2020-06-05 | 浙江巨力电机成套设备有限公司 | Automatic paper cutting and inserting machine |
| CN112111963A (en) * | 2020-11-02 | 2020-12-22 | 佛山市永原针织有限公司 | Cloth leveling device capable of controlling quantitative cutting length |
| CN212681901U (en) * | 2020-07-20 | 2021-03-12 | 龙口市腾达绝缘材料有限公司 | Cutting device for insulating paper |
-
2021
- 2021-08-26 CN CN202110985989.6A patent/CN113427536B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU704778A1 (en) * | 1973-07-06 | 1979-12-25 | Феб Полиграф Лейпциг Комбинат Фюр Полиграфише Машинен Унд Аусрюстунген(Инопредприятие) | Method of trimming paper stacks |
| JP2000317883A (en) * | 1999-05-10 | 2000-11-21 | Takatori Corp | Cutter reciprocating mechanism in cutting machine |
| CN203095263U (en) * | 2012-12-26 | 2013-07-31 | 无锡顶一电机有限公司 | Insulation paper tape cutting machine |
| CN105058487A (en) * | 2015-08-28 | 2015-11-18 | 王奇勇 | Sugarcane peeling and splitting machine |
| CN110091374A (en) * | 2019-06-05 | 2019-08-06 | 广州佶兔工业设计有限公司 | A kind of substrate and its manufacturing method |
| CN111230941A (en) * | 2020-01-20 | 2020-06-05 | 浙江巨力电机成套设备有限公司 | Automatic paper cutting and inserting machine |
| CN212681901U (en) * | 2020-07-20 | 2021-03-12 | 龙口市腾达绝缘材料有限公司 | Cutting device for insulating paper |
| CN112111963A (en) * | 2020-11-02 | 2020-12-22 | 佛山市永原针织有限公司 | Cloth leveling device capable of controlling quantitative cutting length |
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| CN113427536A (en) | 2021-09-24 |
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