CN114016276A - Cloth cutting machine for mask production - Google Patents

Cloth cutting machine for mask production Download PDF

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Publication number
CN114016276A
CN114016276A CN202111427647.9A CN202111427647A CN114016276A CN 114016276 A CN114016276 A CN 114016276A CN 202111427647 A CN202111427647 A CN 202111427647A CN 114016276 A CN114016276 A CN 114016276A
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CN
China
Prior art keywords
gear
connecting rod
conveying roller
cutting machine
plate
Prior art date
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Pending
Application number
CN202111427647.9A
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Chinese (zh)
Inventor
张晓兵
漆春香
周华宗
游弯弯
晏玲
陈奕克
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangxi Kangya Medical Supplies Co ltd
Original Assignee
Jiangxi Kangya Medical Supplies Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Jiangxi Kangya Medical Supplies Co ltd filed Critical Jiangxi Kangya Medical Supplies Co ltd
Priority to CN202111427647.9A priority Critical patent/CN114016276A/en
Publication of CN114016276A publication Critical patent/CN114016276A/en
Pending legal-status Critical Current

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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06HMARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS
    • D06H7/00Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

The invention discloses a cloth cutting machine for mask production, which comprises a workbench, wherein an unwinding roller, a first supporting plate and a shearing device are sequentially arranged on the upper surface of the workbench from left to right, a second supporting plate is arranged on the lower surface of the workbench, a first conveying roller and a second conveying roller are rotatably connected on the first supporting plate, a rotating motor for driving a large gear to rotate is arranged on the second supporting plate, the large gear is an incomplete gear, the large gear is sequentially meshed and connected with a first gear and a second gear, the first gear drives the first conveying roller and the second conveying roller to simultaneously rotate in reverse directions through a first transmission mechanism, the second gear drives a crank connecting rod to rotate through a second transmission mechanism, the invention has the advantages of ingenious structural design, capability of ensuring the consistent length of the non-woven fabrics after cutting, and improvement of the working efficiency of the cloth cutting machine and the automation level of equipment.

Description

Cloth cutting machine for mask production
Technical Field
The invention relates to the technical field of mask production, in particular to a cloth cutting machine for mask production.
Background
The dust mask is a sanitary article, and is a tool which is generally worn at the mouth and nose part and used for filtering air entering the mouth and nose so as to prevent harmful gas, smell and spray from entering and exiting the mouth and nose of a wearer. In the production process of the dust mask, a cloth cutting machine is needed to cut the mask production cloth into a certain length. The cloth cutting machine for producing the existing mask has low cloth cutting efficiency and automation degree, and can not continuously cut coiled cloth into shorter cloth with consistent length.
Disclosure of Invention
The invention aims to improve and innovate the defects and problems in the background art and provides a cloth cutting machine for producing a mask.
In order to achieve the purpose, the invention provides the following technical scheme: a cloth cutting machine for mask production comprises a workbench, wherein an unwinding roller, a first supporting plate and a shearing device are sequentially arranged on the upper surface of the workbench from left to right, a second supporting plate is arranged on the lower surface of the workbench, a first conveying roller and a second conveying roller are rotatably connected onto the first supporting plate, a rotating motor is fixedly connected onto the front surface of the second supporting plate, a large gear is fixedly connected onto the output end of the rotating motor, the large gear is an incomplete gear, the large gear is sequentially meshed and connected with the first gear and the second gear in a rotating process of the rotating motor driving the large gear to rotate, the first gear drives the first conveying roller and the second conveying roller to rotate simultaneously through a first transmission mechanism, the rotating directions of the first conveying roller and the second conveying roller are opposite, the second gear drives a crank connecting rod to rotate through a second transmission mechanism, the crank connecting rod is arranged in the shearing device, and two ends of the crank connecting rod are rotatably connected with the inside the shearing device, the cutting device is characterized in that a movable sleeve is sleeved in the middle of the crank connecting rod, a second connecting rod is fixedly connected to the bottom end of the movable sleeve, a lifting plate is hinged to the bottom end of the second connecting rod through a ball hinge, sliding grooves formed in the two ends of the lifting plate are connected with a shearing device in a sliding mode through sliding blocks, a cutting knife is installed on the lower surface of the lifting plate, a cutting table is arranged under the lifting plate, and cutting grooves corresponding to the cutting knife are formed in the cutting table.
The first transmission mechanism comprises a first driving wheel arranged on the outer surface of a first gear, the first driving wheel is in transmission connection with a first driven wheel through a transmission belt, the first driven wheel is arranged on the outer surface of a third gear, the third gear is arranged on a roller shaft of a first conveying roller, a sixth gear is arranged on the roller shaft of a second conveying roller, and the third gear is in meshing connection with the sixth gear after passing through a fourth gear and a fifth gear in sequence; the second transmission mechanism comprises a second driving wheel arranged on the outer surface of the second gear, the second driving wheel is in transmission connection with a second driven wheel through a conveyor belt, and the second driven wheel is arranged at the tail end of the crank connecting rod).
A further scheme is, crank connecting rod bilateral symmetry installs the seventh gear, seventh gear engagement is connected with the eighth gear, the gear shaft and the shearing mechanism inner wall of eighth gear rotate to be connected, the top of eighth gear is provided with the fixed plate, the inner wall fixed connection of fixed plate and shearing mechanism, it is equipped with the third connecting rod to insert on the fixed plate, third connecting rod top fixedly connected with fixed block, third connecting rod bottom are provided with the fixture block, still overlap on the third connecting rod to be equipped with the spring, spring one end and fixture block fixed connection, the spring other end and fixed plate fixed connection, the fixture block cooperates with the teeth of a cogwheel wedge of eighth gear.
The further scheme is that sponge blocks are further installed on the lower surface of the lifting plate, and the number of the sponge blocks is two and the sponge blocks are arranged on the front side and the rear side of the cutting knife.
The further scheme is that a third supporting plate is arranged on the upper surface of the workbench at intervals, and a driving roller is rotatably connected to the third supporting plate.
A further scheme is that four corners of the lower surface of the workbench are provided with first supporting legs, the bottom ends of the first supporting legs are fixedly connected with a bottom plate, a collecting frame is placed on the bottom plate, and the collecting frame is used for collecting non-woven fabrics cut by the cutting knife.
The further scheme is that a control panel is installed on the lower surface of the workbench and electrically connected with the rotating motor.
The further scheme is that the rear end of the bull gear is fixedly connected with the output end of the rotating motor through a first connecting rod, and the first connecting rods are distributed in a central annular array of the bull gear.
Compared with the prior art, the invention has the beneficial effects that: (1) the large gear is driven to rotate by the rotating motor, gear teeth on the large gear are sequentially in meshing transmission with the first gear and the second gear, and the non-woven fabric on the furling roller is driven to move forwards when the large gear is in meshing connection with the first gear; when the gear wheel is meshed with the second gear, the crank connecting rod is driven to rotate, the lifting plate is further driven to reciprocate up and down, the cutting knife mounted on the lower surface of the lifting plate is driven to cut off the non-woven fabric, the non-woven fabric is automatically driven to move forwards and cut, the length of the cut non-woven fabric is consistent, and the work efficiency of the cloth cutting machine and the automation level of equipment are greatly improved. In the rotation process of the large gear, when the non-woven fabric is driven to move forwards, the cutting knife is fixed; when driving cutting knife up-and-down reciprocating motion, the non-woven fabrics will be fixed, and both can not mutual interference, do not need complicated procedure algorithm to control, just can realize through mechanical transmission structure, structural design is ingenious, convenient to use.
(2) Through the mutual matching of the crank connecting rod, the seventh gear, the eighth gear, the fixing plate, the clamping block, the third connecting rod, the spring and the fixing block, when the rotating motor drives the gear teeth on the large gear to be meshed and connected with the second gear, the crank connecting rod is further driven to rotate, so that the seventh gear is driven to rotate, the seventh gear is meshed and connected with the eighth gear, so that the eighth gear is driven to extrude the clamping block, the clamping block is separated from the eighth gear, the clamping block cannot limit the rotation of the eighth gear, and the rotation of the crank connecting rod cannot be influenced; when the teeth of a cogwheel on the gear wheel are not connected with the meshing of second gear, under the effect of spring, the fixture block will keep with eighth gear wedge-shaped complex state for the crank connecting rod can not take place to rotate because of the effect of self gravity, makes the crank connecting rod during operation out of work, and the state can remain stable, and relative position can not change, thereby has improved the stability of disconnected cloth machine operation process.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the shearing apparatus of the present invention;
FIG. 3 is a schematic view of a gear engagement structure of a second support plate according to the present invention;
FIG. 4 is a schematic view of a gear engagement connection structure of the first support plate according to the present invention;
FIG. 5 is a schematic view of a seventh gear, an eighth gear and a latch of the present invention;
FIG. 6 is a perspective view of the bull gear of the present invention;
FIG. 7 is a schematic perspective view of the lifter plate of the present invention;
FIG. 8 is a schematic perspective view of the cutting deck of the present invention;
reference numerals: a working table 1, a unreeling roller 2, a first supporting plate 3, a first conveying roller 4, a second conveying roller 5, a shearing device 6, a collecting frame 7, a second supporting plate 8, a rotating motor 9, a gearwheel 10, a first gear 11, a second gear 12, a first driving wheel 13, a second driving wheel 14, a first connecting rod 15, a first driven wheel 16, a third gear 17, a fourth gear 18, a fifth gear 19, a sixth gear 20, a second driven wheel 21, a third supporting plate 22 and a driving roller 23, the device comprises a control panel 24, a first supporting leg 25, a bottom plate 26, a crank connecting rod 27, a movable sleeve 28, a second connecting rod 29, a ball hinge 30, a lifting plate 31, a sponge block 32, a cutting knife 33, a sliding block 34, a sliding chute 35, a cutting table 36, a cutting groove 37, a second supporting leg 38, a seventh gear 39, an eighth gear 40, a fixing plate 41, a fixture block 42, a third connecting rod 43, a spring 44 and a fixing block 45.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings 1 to 8.
The utility model provides a cloth cutting machine of gauze mask production usefulness, includes workstation 1, 1 lower surface four corners department of workstation is provided with first supporting leg 25, first supporting leg 25 bottom fixedly connected with bottom plate 26, placed collection frame 7 on the bottom plate 26, place under workstation 1 right side collection frame 7. 1 upper surface of workstation has from left to right set gradually unreel roller 2, first backup pad 3 and shearing mechanism 6, 1 surface mounting has second backup pad 8 and control panel 24 under the workstation, and the quantity of first backup pad 3 has two, rotates between two first backup pads 3 to be connected with first conveying roller 4 and second conveying roller 5, surface fixedly connected with rotating electrical machines 9 before the second backup pad 8, and control panel 24 is connected with rotating electrical machines 9 electricity, and control panel 24 is used for the start and the stoppage of rotating electrical machines 9. The output end of the rotating motor 9 is fixedly connected with the rear end of the large gear 10 through a first connecting rod 15, the first connecting rod 15 is distributed in a central annular array mode through the large gear 10, the large gear 10 is an incomplete gear, the rotating motor 9 drives the large gear 10 to rotate through the first connecting rod 15, the large gear 10 is sequentially meshed with a first gear 11 and a second gear 12, gear shafts of the first gear 11 and the second gear 12 are rotatably connected with a second supporting plate 8, the first gear 11 drives a first conveying roller 4 and a second conveying roller 5 to rotate simultaneously through a first transmission mechanism, and the rotating directions of the first conveying roller 4 and the second conveying roller 5 are opposite, so that the non-woven fabric on the unwinding roller 2 is driven by the first conveying roller 4 and the second conveying roller 5 to move forwards.
In this embodiment, the second gear 12 drives the crank link 27 to rotate through the second transmission mechanism, the crank connecting rod 27 is arranged in the shearing device 6, two ends of the crank connecting rod 27 are rotationally connected with the inside of the shearing device 6, the middle part of the crank connecting rod 27 is sleeved with a movable sleeve 28, the bottom end of the movable sleeve 28 is fixedly connected with a second connecting rod 29, the bottom end of the second connecting rod 29 is hinged with a lifting plate 31 through a ball hinge 30, the two ends of the lifting plate 31 are connected with a sliding groove 35 arranged on the shearing device 6 in a sliding way through a slide block 34, the lower surface of the lifting plate 31 is provided with a cutting knife 33, a cutting table 36 is arranged under the lifting plate 31, a cutting groove 37 corresponding to the cutting knife 33 is formed in the cutting table 36, a second supporting leg 38 is fixedly connected to the lower surface of the cutting table 36, and one end, far away from the cutting table 36, of the second supporting leg 38 is fixedly connected with the bottom wall of the shearing device 6. After the second gear 12 drives the crank connecting rod 27 to rotate, the lifting plate 31 is driven to reciprocate up and down through the mutual matching of the movable sleeve 28, the second connecting rod 29 and the ball hinge 30, the lifting plate 31 moves downwards to drive the cutting knife 33 on the lower surface of the lifting plate 31 to be matched with the cutting groove 37, the non-woven fabric is cut off, and the cut non-woven fabric falls to the collecting frame 7 under the action of gravity, so that the non-woven fabric is collected.
In this embodiment, sponge piece 32 is still installed to lifter plate 31 lower surface, the quantity of sponge piece 32 has two, and sets up in the front and back both sides of cutting knife 31, and at the in-process of cutting the non-woven fabrics of cutting knife 31, sponge piece 32 and cutting bed 36 mutually support, and the non-woven fabrics that will be located cutting knife 31 front side and rear side are pushed down, avoids the in-process non-woven fabrics of cutting knife 31 cutting to slide, is favorable to the incision to level to cutting quality has been improved.
In this embodiment, the first transmission mechanism includes a first driving wheel 13 mounted on an outer surface of the first gear 11, the first driving wheel 13 is in transmission connection with a first driven wheel 16 through a transmission belt, the first driven wheel 16 is arranged on an outer surface of a third gear 17, the third gear 17 is mounted on a roller shaft of the first conveying roller 4, a sixth gear 20 is mounted on a roller shaft of the second conveying roller 5, and the third gear 17 is in meshing connection with the sixth gear 20 after passing through a fourth gear 18 and a fifth gear 19 in sequence; the second transmission mechanism comprises a second driving wheel 14 arranged on the outer surface of the second gear 12, the second driving wheel 14 is in transmission connection with a second driven wheel 21 through a transmission belt, and the second driven wheel 21 is arranged at the tail end of a crank connecting rod 27.
In this embodiment, seventh gear 39 is installed to crank connecting rod 27 bilateral symmetry, seventh gear 39 meshing is connected with eighth gear 40, eighth gear 40's gear shaft and 6 inner walls of shearing mechanism rotate to be connected, eighth gear 40's top is provided with fixed plate 41, fixed plate 41 and shearing mechanism 6's inner wall fixed connection, it is equipped with third connecting rod 43 to insert on the fixed plate 41, third connecting rod 43 top fixedly connected with fixed block 45, third connecting rod 43 bottom are provided with fixture block 42, still overlap on the third connecting rod 43 and be equipped with spring 44, spring 44 one end and fixture block 42 fixed connection, the spring 44 other end and fixed plate 41 fixed connection, fixture block 42 and eighth gear 40's the teeth of a cogwheel wedge cooperation. When the rotating motor 9 drives the gear teeth on the large gear 10 to be meshed and connected with the second gear 12, the crank connecting rod 27 is further driven to rotate, so that the seventh gear 39 is driven to rotate, the seventh gear 39 is meshed and connected with the eighth gear 40, so that the eighth gear 40 is driven to extrude the clamping block 42, the clamping block 42 is separated from the eighth gear 40, the clamping block 42 cannot limit the eighth gear 40 to rotate, and the rotation of the crank connecting rod 27 cannot be influenced; when the teeth of a cogwheel on gear wheel 10 are not connected with the meshing of second gear 12, under the effect of spring 44, fixture block 42 will keep with eighth gear 40 wedge fit's state for crank connecting rod 27 can not take place to rotate because of the effect of self gravity, and when making crank connecting rod 27 not work, the state can remain stable, and relative position can not change, thereby has improved the stability of disconnected cloth machine operation process.
In this embodiment, a third supporting plate 22 is arranged on the upper surface of the working table 1 at intervals, a driving roller 23 is rotatably connected to the third supporting plate 22, and the driving roller 23 is used for guiding the non-woven fabric to move forward.
The working principle of the invention is as follows: when the non-woven fabric unwinding device is used, after the rotating motor 9 is driven by the control panel 24, the rotating motor 9 drives the large gear 10 to rotate, gear teeth on the large gear 10 are firstly meshed with the first gear 11 for transmission, so that the first driving wheel 13 is driven to rotate, the non-woven fabric on the unwinding roller 1 is driven to move forwards and pass through the shearing device 6 through the cooperation of the conveying belt, the first driven wheel 16, the third gear 17, the fourth gear 18, the fifth gear 19 and the sixth gear 20, then the first conveying roller 4 and the second conveying roller 5 are driven to rotate reversely, the first conveying roller 4 and the second conveying roller 5 stop driving the non-woven fabric to move forwards, the non-woven fabric is fixed, the second gear 12 drives the second driving wheel 14 to rotate, and the conveying belt is meshed with the second driven wheel 21, the drive crank connecting rod 27 is rotatory, rethread movable sleeve 28, the mutually supporting of second connecting rod 29 and ball hinge 30, drive lifter plate 31 up-and-down motion, lifter plate 31 downstream drives the cutting knife 33 of lifter plate 31 lower surface and cuts off the non-woven fabrics, the cutting is accomplished the back, the non-woven fabrics falls under the effect of gravity and collects in the frame 7, and the initial position is got back to lifter plate 31 upward motion, then the teeth of a cogwheel on gear wheel 10 continues to be connected with first gear 11 and the meshing of second gear 12 in proper order, automatically, drive non-woven fabrics forward motion and cutting non-woven fabrics, and guarantee that the non-woven fabrics length after the cutting is unanimous, the work efficiency of cloth cutting machine and the automation level of equipment have been improved greatly.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (8)

1. The utility model provides a cloth cutting machine of gauze mask production usefulness, includes workstation (1), its characterized in that: the automatic cutting device is characterized in that an unwinding roller (2), a first supporting plate (3) and a shearing device (6) are sequentially arranged on the upper surface of the workbench (1) from left to right, a second supporting plate (8) is arranged on the lower surface of the workbench (1), a first conveying roller (4) and a second conveying roller (5) are rotatably connected to the first supporting plate (3), a rotating motor (9) is fixedly connected to the front surface of the second supporting plate (8), a large gear (10) is fixedly connected to the output end of the rotating motor (9), the large gear (10) is an incomplete gear, the large gear (10) is sequentially meshed with a first gear (11) and a second gear (12) in the rotating process that the rotating motor (9) drives the large gear (10), the first gear (11) drives the first conveying roller (4) and the second conveying roller (5) to rotate simultaneously through a first transmission mechanism, the rotating directions of the first conveying roller (4) and the second conveying roller (5) are opposite, the second gear (12) drives the crank connecting rod (27) to rotate through the second transmission mechanism, the crank connecting rod (27) is arranged in the shearing device (6) and two ends of the crank connecting rod are rotationally connected with the inside of the shearing device (6), a movable sleeve (28) is sleeved in the middle of the crank connecting rod (27), the bottom end of the movable sleeve (28) is fixedly connected with a second connecting rod (29), the bottom end of the second connecting rod (29) is hinged with a lifting plate (31) through a ball hinge (30), two ends of the lifting plate (31) are connected with a sliding groove (35) arranged on the shearing device (6) in a sliding way through a slide block (34), a cutting knife (33) is arranged on the lower surface of the lifting plate (31), a cutting table (36) is arranged under the lifting plate (31), and cutting grooves (37) corresponding to the cutting knives (33) are formed in the cutting table (36).
2. The cloth cutting machine for mask production according to claim 1, characterized in that: the first transmission mechanism comprises a first driving wheel (13) arranged on the outer surface of a first gear (11), the first driving wheel (13) is in transmission connection with a first driven wheel (16) through a transmission belt, the first driven wheel (16) is arranged on the outer surface of a third gear (17), the third gear (17) is arranged on a roller shaft of the first conveying roller (4), a sixth gear (20) is arranged on the roller shaft of the second conveying roller (5), and the third gear (17) is in meshing connection with the sixth gear (20) after passing through a fourth gear (18) and a fifth gear (19) in sequence; the second transmission mechanism comprises a second driving wheel (14) arranged on the outer surface of the second gear (12), the second driving wheel (14) is in transmission connection with a second driven wheel (21) through a conveyor belt, and the second driven wheel (21) is arranged at the tail end of a crank connecting rod (27).
3. The cloth cutting machine for mask production according to claim 1, characterized in that: seventh gears (39) are symmetrically arranged on two sides of the crank connecting rod (27), the seventh gears (39) are connected with eighth gears (40) in a meshing way, the gear shaft of the eighth gear (40) is rotationally connected with the inner wall of the shearing device (6), a fixing plate (41) is arranged above the eighth gear (40), the fixing plate (41) is fixedly connected with the inner wall of the shearing device (6), a third connecting rod (43) is inserted on the fixing plate (41), the top end of the third connecting rod (43) is fixedly connected with a fixing block (45), a clamping block (42) is arranged at the bottom end of the third connecting rod (43), a spring (44) is further sleeved on the third connecting rod (43), one end of the spring (44) is fixedly connected with the clamping block (42), the other end of the spring (44) is fixedly connected with the fixing plate (41), and the clamping block (42) is in wedge-shaped fit with the gear teeth of the eighth gear (40).
4. The cloth cutting machine for mask production according to claim 1, characterized in that: sponge blocks (32) are further mounted on the lower surface of the lifting plate (31), and two sponge blocks (32) are arranged on the front side and the rear side of the cutting knife (31).
5. The cloth cutting machine for mask production according to claim 1, characterized in that: the upper surface of the workbench (1) is provided with a third support plate (22) at intervals, and the third support plate (22) is connected with a driving roller (23) in a rotating manner.
6. The cloth cutting machine for mask production according to claim 1, characterized in that: workstation (1) lower surface four corners department is provided with first supporting leg (25), first supporting leg (25) bottom fixedly connected with bottom plate (26), placed on bottom plate (26) and collected frame (7), collect frame (7) and be used for collecting the non-woven fabrics after cutting knife (33) cutting.
7. The cloth cutting machine for mask production according to claim 1, characterized in that: a control panel (24) is installed on the lower surface of the workbench (1), and the control panel (24) is electrically connected with the rotating motor (9).
8. The cloth cutting machine for mask production according to claim 1, characterized in that: the rear end of the bull gear (10) is fixedly connected with the output end of the rotating motor (9) through a first connecting rod (15), and the first connecting rods (15) are distributed in a central annular array of the bull gear (10).
CN202111427647.9A 2021-11-26 2021-11-26 Cloth cutting machine for mask production Pending CN114016276A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111427647.9A CN114016276A (en) 2021-11-26 2021-11-26 Cloth cutting machine for mask production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111427647.9A CN114016276A (en) 2021-11-26 2021-11-26 Cloth cutting machine for mask production

Publications (1)

Publication Number Publication Date
CN114016276A true CN114016276A (en) 2022-02-08

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Application Number Title Priority Date Filing Date
CN202111427647.9A Pending CN114016276A (en) 2021-11-26 2021-11-26 Cloth cutting machine for mask production

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Publication number Priority date Publication date Assignee Title
CN114589747A (en) * 2022-03-08 2022-06-07 西安电子科技大学 Fresh food material dicer

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CN113023951A (en) * 2021-03-22 2021-06-25 张国华 Novel sewage treatment system and using method thereof
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CN111809382A (en) * 2020-08-28 2020-10-23 溆浦县顺成服装有限公司 Garment fabric tailoring equipment
CN213624950U (en) * 2020-10-13 2021-07-06 江西博美斯特医疗科技股份有限公司 Cutting machine of medical surgery gauze mask production usefulness
CN112941885A (en) * 2021-02-01 2021-06-11 王强 Trimming mechanism and trimming method of non-woven fabric for mask machine
CN113023951A (en) * 2021-03-22 2021-06-25 张国华 Novel sewage treatment system and using method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114589747A (en) * 2022-03-08 2022-06-07 西安电子科技大学 Fresh food material dicer

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Application publication date: 20220208