A cutting device for meltblown fabric of masks
By designing an automated cutting device including cylinders, push plates, guide rollers and Hall sensors, the problem of manual measurement of cutting length and cutting offset in the prior art is solved, and efficient and accurate meltblown fabric cutting is achieved.
Patent Information
- Application Number
- CN202420980037.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-08
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-05-08
AI Technical Summary
The existing meltblown cloth cutting device needs to manually measure the cutting length before cutting, which increases labor intensity and is prone to offset during cutting, affecting the cutting accuracy.
A cutting device including a housing, a cylinder, a push plate, a cutting blade, a press plate, a guide roller, a driving motor, a rotating rod, a tension roller, a magnetic steel and a Hall sensor is designed. Through the cooperation of the cylinder and the push plate, the movement of the clipper and the extrusion and fixation of the press plate are achieved automatically, thereby improving the cutting accuracy. The guide roller and tension roller are used to realize the automatic conveying of meltblown cloth, and the conveying volume is detected through magnetic steel and Hall sensors, and the cutting volume is automatically controlled.
It realizes automatic control of the cutting amount of meltblown fabric, reduces the labor intensity of manual measurement, improves cutting accuracy and stability, and enhances the automation and efficiency of the cutting process.
Smart Images
Figure CN222730227U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of meltblown cloth production, in particular to a cutting device for meltblown cloth for masks. Background Art
[0002] Meltblown cloth uses polypropylene as its main raw material. The ultrafine fibers with a unique capillary structure increase the number and surface area of fibers per unit area, making the meltblown cloth have excellent air filtration properties. It is a relatively good mask material. In large, medium and small medical institutions, in earthquake-stricken areas and flood-stricken areas, and in the high-incidence season of influenza viruses, meltblown cloth plays an irreplaceable role with its strong filtration performance.
[0003] The inventors found that there are at least the following problems in the prior art that have not been solved: the existing meltblown cloth cutting device mainly uses a cylinder to push the cutting knife to cut the meltblown cloth, but before cutting, the staff needs to measure the cutting length of the meltblown cloth, which increases the labor intensity of the staff, and the meltblown cloth is easily offset during the cutting process, which affects the cutting accuracy. Therefore, a new technical solution needs to be designed to solve this problem. Utility Model Content
[0004] The purpose of the utility model is to overcome the shortcomings of the prior art, adapt to actual needs, and provide a cutting device for meltblown cloth for masks to solve the current technical problems of inconvenient control of the cutting amount of meltblown cloth and easy shaking of meltblown cloth during cutting.
[0005] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: to design a cutting device for meltblown cloth for masks, including a shell and a meltblown cloth: a cylinder is fixedly connected to the middle part of one end of the upper surface of the shell by bolts, the telescopic end of the cylinder passes through the top inner wall of the shell and is fixedly installed with a push plate, a cutting knife is vertically fixedly connected to the middle part of the bottom side of the push plate, a pressing plate is horizontally arranged on the bottom side of the pushing plate, the meltblown is arranged on the bottom side of the pressing plate, a through groove is horizontally penetrated in the middle part of the upper surface of the pressing plate, the cutting knife is movably connected to the through groove, four groups of springs are arranged above the pressing plate, and the front and rear ends of the shell are provided with springs. The inner wall on the side is rotatably connected with two groups of guide rollers through bearings, the lower part of the rear side of the shell is fixedly connected with a driving motor through bolts, the motor shaft of the driving motor is fixedly connected with a rotating rod, the rotating rod is rotatably connected with the inner walls on the front and rear sides of the shell through bearings, the rotating rod horizontally penetrates the tensioning roller and is fixedly connected with the tensioning roller, the tensioning roller is placed between the two groups of guide rollers, the guide roller and the tensioning roller are transmission connected with the meltblown cloth, the outer side of the rear end of the rotating rod is fixedly connected with a magnetic steel, the magnetic steel is evenly distributed on the outer side of the rotating rod, and the bottom inner wall of the shell is fixedly connected with a Hall sensor, and the Hall sensor corresponds to the magnetic steel.
[0006] Preferably, the four corners on the upper surface of the push plate are penetrated by limiting grooves, the inner part of the limiting grooves is slidably connected to limiting rods, and the bottom ends of the four groups of limiting rods are respectively fixedly connected to the four corners on the upper surface of the pressure plate.
[0007] Preferably, the spring is sleeved on the outside of the limiting rod, and the spring is placed between the push plate and the pressure plate.
[0008] Preferably, a cutting table is fixedly mounted at the lower end of the shell, and the guide roller is flush with the upper surface of the cutting table.
[0009] Preferably, a cutting groove is provided in the middle of the upper surface of the cutting table, and the cutting knife is movably connected to the cutting groove.
[0010] Preferably, an anti-skid pad is sleeved on the outer side of the tensioning roller, and the tensioning roller is bonded to the anti-skid pad by glue.
[0011] Preferably, an industrial computer is fixedly connected to the front side of the shell by screws, the data output end of the Hall sensor is connected to the data input end of the industrial computer, and the signal output end of the industrial computer is connected to the signal input end of the cylinder and the drive motor.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] 1. The utility model controls the operation of the cylinder through the combination of the cylinder, the push plate and the cutting knife, and can push the cutting knife to move downward to cut the meltblown cloth on the upper surface of the cutting table. Through the combination of the pressing plate, the through groove and the spring, the pressing plate can be pushed downward during the downward movement of the push plate. The elastic force of the spring can push the pressing plate to extrude and fix the meltblown cloth on the upper surface of the cutting table, thereby improving the cutting accuracy of the meltblown cloth. Through the combination of the guide roller, the drive motor, the rotating rod and the tensioning roller, the conveying operation of the meltblown cloth can be realized. Through the combination of the magnetic steel and the Hall sensor, when the rotating rod drives the tensioning roller to rotate, it can drive the magnetic steel to rotate. When the magnetic steel is vertically aligned with the Hall sensor, the Hall sensor can transmit data to the industrial control computer, further detect the number of rotations of the rotating rod and the tensioning roller, and further detect the conveying amount of the meltblown cloth. When the conveying amount of the meltblown cloth reaches the setting, the industrial control computer can automatically control the drive motor to stop working, and at the same time control the cylinder to work, automatically cut the meltblown cloth, thereby automatically controlling the cutting amount of the meltblown cloth.
[0014] 2. The utility model can limit the pressure plate on the bottom side of the push plate through the combination of the limit rod and the limit groove, thereby improving the stability of the pressure plate during use and further improving the extrusion and fixing effect of the pressure plate on the meltblown cloth. At the same time, the limit rod can limit the spring to prevent the spring from tilting when it is compressed and stretched, affecting the use effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is the front view of the utility model;
[0016] Figure 2 It is a schematic diagram of the push plate and the pressure plate of the utility model;
[0017] Figure 3 It is a schematic diagram of the structure of the utility model;
[0018] Figure 4 It is a top view of the tensioning roller of the utility model;
[0019] In the figure: 1. Shell; 11. Cylinder; 12. Push plate; 13. Cutting knife; 14. Press plate; 15. Through slot; 16. Spring; 17. Limit slot; 18. Limit rod; 19. Meltblown cloth; 2. Guide roller; 21. Drive motor; 22. Rotating rod; 23. Tensioning roller; 24. Anti-skid pad; 25. Cutting table; 26. Cutting slot; 3. Magnetic steel; 31. Hall sensor; 32. Industrial computer. DETAILED DESCRIPTION
[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments:
[0021] Example 1: A cutting device for meltblown fabric for masks, see Figures 1 to 4 , including a shell 1 and a meltblown cloth 19: a cylinder 11 is fixedly connected to the middle of one end of the upper surface of the shell 1 by bolts, the telescopic end of the cylinder 11 penetrates the inner wall of the top end of the shell 1 and is fixedly installed with a push plate 12, a cutting knife 13 is vertically fixedly connected to the middle of the bottom side of the push plate 12, a pressing plate 14 is horizontally arranged on the bottom side of the push plate 12, the meltblown cloth 19 is placed on the bottom side of the pressing plate 14, a through groove 15 is horizontally penetrated in the middle of the upper surface of the pressing plate 14, the cutting knife 13 is movably connected to the through groove 15, four groups of springs 16 are arranged above the pressing plate 14, the inner walls on the front and rear sides of the shell 1 are rotatably connected with two groups of guide rollers 2 through bearings, and the lower part of the rear side of the shell 1 is screwed The bolt is fixedly connected to a driving motor 21, and the motor shaft of the driving motor 21 is fixedly connected to a rotating rod 22. The rotating rod 22 is rotatably connected to the inner walls of the front and rear sides of the shell 1 through bearings. The rotating rod 22 horizontally penetrates the tensioning roller 23 and is fixedly connected to the tensioning roller 23. The tensioning roller 23 is placed between two groups of guide rollers 2. The guide roller 2 and the tensioning roller 23 are transmission-connected to the meltblown cloth 19. A cutting table 25 is fixedly installed at the lower end of the shell 1. A magnetic steel 3 is fixedly connected to the outer side of the rear end of the rotating rod 22. The magnetic steel 3 is evenly distributed on the outer side of the rotating rod 22. A Hall sensor 31 is fixedly connected to the inner wall of the bottom end of the shell 1, and the Hall sensor 31 corresponds to the magnetic steel 3.
[0022] In this embodiment, the guide roller 2 and the tensioning roller 23 are connected to the meltblown cloth 19 through transmission, and the driving motor 21 is controlled to work. The tensioning roller 23 can be driven to rotate through the rotating rod 22, and the meltblown cloth 19 can be transported to the upper surface of the cutting table 25, so as to realize the transportation operation of the meltblown cloth 19. During the process of the rotating rod 22 driving the tensioning roller to rotate, the magnetic steel 3 can be driven to rotate. When the magnetic steel 3 is vertically aligned with the Hall sensor 31, the Hall sensor 31 can transmit data to the industrial control computer 32, and further detect the number of rotations of the rotating rod 22 and the tensioning roller 23, and further detect the transportation amount of the meltblown cloth 19. When the delivery amount of the meltblown cloth 19 reaches the set amount, the industrial control computer 32 can automatically control the drive motor 21 to stop working, and at the same time control the cylinder 11 to work. The push plate 12 can push the cutting knife 13 to move downward to cut the meltblown cloth 19 on the upper surface of the cutting table 25. During the downward movement of the push plate 12, the pressing plate 14 can be pushed to move downward to fit the meltblown cloth 19 on the upper surface of the cutting table 25. As the push plate 12 continues to move downward, the elastic force of the spring 16 can push the pressing plate 14 to extrude and fix the meltblown cloth 19 on the upper surface of the cutting table 25, thereby improving the cutting accuracy of the meltblown cloth 19.
[0023] For details, see Figure 1-3 The four corners on the upper surface of the push plate 12 are all penetrated by limiting grooves 17, and the limiting grooves 17 are internally slidably connected to limiting rods 18. The bottom ends of the four groups of limiting rods 18 are respectively fixedly connected to the four corners on the upper surface of the pressure plate 14. The spring 16 is sleeved on the outside of the limiting rod 18, and the spring 16 is placed between the push plate 12 and the pressure plate 14.
[0024] In this embodiment, through the combination of the limiting rod 18 and the limiting groove 17, the pressure plate 14 on the bottom side of the push plate 12 can be limited, thereby improving the stability of the pressure plate 14 during use, and further improving the extrusion and fixing effect of the pressure plate 14 on the meltblown cloth 19. At the same time, the limiting rod 18 can limit the spring 16 to prevent the spring 16 from tilting when it is compressed and stretched, affecting the use effect.
[0025] For further information, see Figure 1 and Figure 3 The guide roller 2 is flush with the upper surface of the cutting table 25 , a cutting groove 26 is provided in the middle of the upper surface of the cutting table 25 , and the cutting knife 13 is movably connected to the cutting groove 26 .
[0026] In this embodiment, when the cylinder 11 pushes the push plate 12 to move downward, it can push the cutting knife 13 to move downward through the through groove 15 on the upper surface of the pressing plate 14 and insert into the cutting groove 26 on the upper surface of the cutting table 25, which can improve the cutting effect of the cutting knife 13 on the meltblown cloth 19 on the upper surface of the cutting table 25.
[0027] It is worth noting that see Figure 3-4The outer side of the tensioning roller 23 is covered with an anti-skid pad 24, and the tensioning roller 23 is bonded to the anti-skid pad 24 by glue.
[0028] In this embodiment, the anti-slip pad 24 on the outside of the tensioning roller 23 can increase the friction between the tensioning roller 23 and the meltblown cloth 19, thereby preventing the meltblown cloth 19 and the tensioning roller 23 from slipping and affecting the cutting accuracy of the meltblown cloth 19.
[0029] It is worth noting that see Figure 1 , Figure 2 and Figure 4 The front side of the housing 1 is fixedly connected with an industrial computer 32 by screws, the data output end of the Hall sensor 31 is connected to the data input end of the industrial computer 32, and the signal output end of the industrial computer 32 is connected to the signal input end of the cylinder 11 and the drive motor 21.
[0030] In addition, the circuits, electronic components and modules involved in the utility model are all existing technologies and can be fully implemented by those skilled in the art. Needless to say, the content protected by the utility model does not involve improvements to the internal structure and methods.
[0031] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.
Claims
1. A cutting device for meltblown fabric of masks, characterized in that: The invention comprises a shell (1) and a meltblown cloth (19): a cylinder (11) is fixedly connected to the middle of one end of the upper surface of the shell (1) by bolts, the telescopic end of the cylinder (11) passes through the inner wall of the top end of the shell (1) and is fixedly installed with a push plate (12), a cutting knife (13) is vertically fixedly connected to the middle of the bottom side of the push plate (12), a pressing plate (14) is horizontally arranged on the bottom side of the push plate (12), the meltblown cloth (19) is placed on the bottom side of the pressing plate (14), a through groove (15) is horizontally penetrated in the middle of the upper surface of the pressing plate (14), the cutting knife (13) is movably connected to the through groove (15), four groups of springs (16) are arranged above the pressing plate (14), the inner walls on the front and rear sides of the shell (1) are rotatably connected to two groups of guide rollers (2) through bearings, and the shell (1) A driving motor (21) is fixedly connected to the lower part of the rear side by bolts, and the motor shaft of the driving motor (21) is fixedly connected to a rotating rod (22). The rotating rod (22) is rotatably connected to the inner walls of the front and rear sides of the shell (1) through bearings. The rotating rod (22) horizontally penetrates the tensioning roller (23) and is fixedly connected to the tensioning roller (23). The tensioning roller (23) is placed between two groups of guide rollers (2). The guide rollers (2) and the tensioning roller (23) are transmission-connected to the melt-blown cloth (19). The outer side of the rear end of the rotating rod (22) is fixedly connected to a magnetic steel (3), and the magnetic steel (3) is evenly distributed on the outer side of the rotating rod (22). The inner wall of the bottom end of the shell (1) is fixedly connected to a Hall sensor (31), and the Hall sensor (31) corresponds to the magnetic steel (3).
2. A cutting device for meltblown fabric for masks as claimed in claim 1, characterized in that: The four corners of the upper surface of the push plate (12) are all penetrated by limiting grooves (17), and the inner part of the limiting grooves (17) is slidably connected to limiting rods (18), and the bottom ends of the four groups of limiting rods (18) are respectively fixedly connected to the four corners of the upper surface of the pressing plate (14).
3. A cutting device for meltblown fabric for masks according to claim 1, characterized in that: The spring (16) is sleeved on the outside of the limiting rod (18), and the spring (16) is placed between the push plate (12) and the pressure plate (14).
4. A cutting device for meltblown fabric for masks according to claim 1, characterized in that: A cutting table (25) is fixedly mounted at the lower end of the interior of the shell (1), and the guide roller (2) is flush with the upper surface of the cutting table (25).
5. A cutting device for meltblown fabric for masks as claimed in claim 4, characterized in that: A cutting groove (26) is provided in the middle of the upper surface of the cutting table (25), and the cutting knife (13) is movably connected to the cutting groove (26).
6. A cutting device for meltblown fabric for masks according to claim 1, characterized in that: The outer side of the tensioning roller (23) is provided with an anti-skid pad (24), and the tensioning roller (23) is bonded to the anti-skid pad (24) by glue.
7. A cutting device for meltblown fabric for masks as claimed in claim 1, characterized in that: The front side of the housing (1) is fixedly connected to an industrial control computer (32) by means of screws, the data output end of the Hall sensor (31) is connected to the data input end of the industrial control computer (32), and the signal output end of the industrial control computer (32) is connected to the signal input ends of the cylinder (11) and the drive motor (21).