Filtering cotton piece cutting equipment and working method thereof

Abstract

The invention relates to the technical field of automatic cutting, in particular to filtering cotton piece cutting equipment and a working method thereof. The cutting equipment comprises a feeding mechanism, a pressing mechanism, a pulling mechanism and a cutting mechanism. The material pressing mechanism comprises a material pressing platform and a material pressing assembly, the material supply mechanism is installed on the material pressing platform, and the material pressing assembly is installed at the end of the material pressing platform and used for pressing the filter cotton pieces; the material pulling mechanism is located on the opposite side of the material pressing assembly, the material pulling mechanism is provided with a clamping jaw assembly for clamping the filter cotton piece, and the clamping jaw assembly can move close to and away from the material pressing assembly; the cutting mechanism is provided with a pair of scissors, and the scissors are located between the material pressing assembly and the clamping jaw assembly and used for cutting the filter cotton pieces. By means of the cutting device, reliable clamping, accurate positioning and stable cutting of light, breathable and micro-sized filter cotton pieces can be achieved, it is ensured that the cut cotton pieces can be effectively temporarily stored and smoothly transferred, and therefore the cutting efficiency is remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of automated cutting technology, and in particular to a filter cotton sheet cutting device and its working method. Background Technology

[0002] In the manufacturing process of electronic products, filter cotton sheets are key components that need to be precisely cut into specific shapes (such as rectangles) and tiny sizes (such as 4mm x 5mm). Their materials are usually lightweight, with tough internal cotton fibers and a fluffy and breathable overall structure.

[0003] In the field of automated manufacturing, the common existing technology for cutting sheet-like filter cotton sheets is to use punching or cutting equipment similar to tape or film. However, when the above-mentioned existing technology is directly applied to the cutting of filter cotton sheets, significant technical problems arise: First, the filter cotton sheets are tiny (e.g., 4mm x 5mm), extremely lightweight, and have a loose, breathable structure. Because the filter cotton sheets are too small, it is difficult to achieve effective zone clamping, and the poor breathability makes it difficult for negative pressure adsorption to form sufficient suction in such a small area, making it impossible to stabilize the position during the cutting process.

[0004] Secondly, the filter cotton sheets are soft and lightweight, making them prone to deformation, curling, or shifting during the cutting process, which makes it difficult to guarantee the accuracy of cutting dimensions and the consistency of shape. The simple pressing and cutting methods in existing equipment are insufficient to effectively constrain these soft filter cotton sheets. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a filter cotton sheet cutting device that can reliably clamp, accurately position, and stably cut lightweight, breathable, and small-sized filter cotton sheets, and ensure that the cut cotton sheets can be effectively stored and smoothly transferred, thereby significantly improving cutting efficiency and ensuring a high degree of consistency in cutting size and shape.

[0006] To achieve the above objectives, the embodiments of the present invention provide the following technical solutions: A filter sheet cutting device includes: a feeding mechanism, a pressing mechanism, a pulling mechanism, and a cutting mechanism; the pressing mechanism includes a pressing platform and a pressing assembly, the feeding mechanism is mounted on the pressing platform, and the pressing assembly is mounted on the end of the pressing platform for pressing the filter sheet; the pulling mechanism is located on the opposite side of the pressing assembly, and the pulling mechanism has a gripper assembly for holding the filter sheet, the gripper assembly being movable towards and away from the pressing assembly; the cutting mechanism has scissors located between the pressing assembly and the gripper assembly for cutting the filter sheet.

[0007] Optionally, the bottom of the cutting device has a base, and the pressing mechanism, pulling mechanism and cutting mechanism are all installed on the base; the pressing platform has a groove for conveying filter cotton sheets, the feeding mechanism includes a feeding roll, the filter cotton sheets to be cut are wound on the feeding roll, and a guide wheel is also provided on the lower side of the feeding roll, the guide wheel is located directly above the groove.

[0008] Optionally, the pressing platform is also provided with a pressure plate and an optical fiber sensor. The pressure plate is installed on the upper side of the groove, the optical fiber sensor is aligned with the groove, and a through hole is opened in the groove at the position corresponding to the optical fiber sensor.

[0009] Optionally, the pressing assembly includes a pressing cylinder and a pressing component. The pressing platform has a protruding plate protruding in the direction of the pulling mechanism. The pressing cylinder is mounted on the protruding plate, and the pressing component is mounted on the pressing cylinder.

[0010] Optionally, the material pulling mechanism includes a material pulling module mounted on the base. The material pulling module includes a ball screw pair and a slider mounted on the ball screw pair, and the gripper assembly is mounted on the slider.

[0011] Optionally, the material pulling mechanism further includes a transverse cylinder and a lifting cylinder. The transverse cylinder is mounted on the slider of the material pulling module, and the lifting cylinder is mounted on the transverse cylinder. The gripper assembly includes an upper gripper and a lower gripper. The upper gripper is mounted on the lifting cylinder, and the lower gripper is mounted on the slider of the material pulling module.

[0012] Optionally, the lower gripper has an air chamber inside, and an air suction hole is provided on the top surface of the lower gripper. The air suction hole is connected to the air chamber and is used to temporarily absorb the cut filter cotton sheet.

[0013] Optionally, the cutting mechanism further includes a fixed seat, a finger cylinder, and a fixed plate. The fixed seat is mounted on the base, the finger cylinder is mounted on the side of the fixed seat, the fixed plate is mounted on the side of the finger cylinder, and the scissors are mounted on the side of the fixed plate. The finger cylinder drives the scissors to pinch and cut the filter cotton sheet.

[0014] Optionally, the cutting mechanism further includes a knob, a baffle, and pins. The side of the fixed plate has a receiving cavity, and the scissors are installed in the receiving cavity. The knob passes through the tail of the scissors and is installed on the fixed plate. The baffle is installed on the side of the fixed plate and blocks the outside of the scissors. There are two pins, one end of which is installed on the two driving fingers of the finger cylinder, and the other end passes through the fixed plate and is located on the upper and lower sides of the scissors respectively.

[0015] This invention also provides a method for operating a filter cotton sheet cutting device, including: The feed roll is fitted with filter cotton sheets and the feed head is guided to the cutting position; The gripper assembly holds the filter cotton sheet and moves it to a predetermined length position; The pressing mechanism presses down on the rear section of the filter cotton sheet to fix its position. The cutting mechanism cuts the filter cotton sheet between the gripper assembly and the pressing mechanism. During cutting, the gripper assembly holds most of the filter cotton sheet, leaving only the cutting position of the cutting mechanism. After cutting, the clamping components are staggered to expose the cut filter cotton sheet, and the cut filter cotton sheet is temporarily adsorbed and fixed. The suction nozzle sucks up the cut-off filter cotton sheets; After the material is picked up, reset each mechanism to repeat the cutting cycle.

[0016] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages: The filter sheet cutting device of the present invention includes a feeding mechanism, a pressing mechanism, a pulling mechanism, and a cutting mechanism. The feeding mechanism is installed on the pressing platform, and the pressing assembly is located at the end of the pressing platform to fix the filter sheet during the cutting process and prevent it from shifting. The pulling mechanism is located on the opposite side of the pressing assembly, and the gripper assembly can move flexibly, either close to the pressing assembly to clamp the filter sheet or away from the pressing assembly to complete the pulling action. The cutting mechanism is equipped with scissors installed between the pressing assembly and the gripper assembly, so that the filter sheet can be quickly and accurately cut after being fixed by the gripper assembly. This cutting device realizes the fully automated operation of the filter sheet from feeding to cutting. The feeding mechanism continuously and stably provides the filter sheet to be cut, the pressing mechanism and the pulling mechanism work together to ensure that the filter sheet remains stable during cutting, and the cutting mechanism efficiently completes the cutting task, improving production efficiency and cutting accuracy. The close cooperation between the various components ensures the efficient and stable operation of the filter sheet cutting process, meeting the large demand for small and lightweight filter sheets from industries such as electronics.

[0017] Advantages of additional aspects of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In addition, the spacing or dimensions between components are exaggerated to show the position of each component, and the schematic diagrams are for illustrative purposes only.

[0019] Figure 1 This is a schematic diagram of the overall cutting device provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the feeding mechanism provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the pressing mechanism provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the pressing assembly provided in an embodiment of the present invention; Figure 5 This is a first-view schematic diagram of the material pulling mechanism provided in an embodiment of the present invention; Figure 6 This is a second-view schematic diagram of the material pulling mechanism provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the gripper assembly provided in an embodiment of the present invention; Figure 8 This is a first-view schematic diagram of the cutting mechanism provided in an embodiment of the present invention; Figure 9 This is a second-view schematic diagram of the cutting mechanism provided in an embodiment of the present invention; Figure 10 This is a schematic diagram of the scissors provided in an embodiment of the present invention; In the diagram: 1. Base; 2. Feeding mechanism; 21. Feed roll; 22. Guide wheel; 3. Pressing mechanism; 31. Pressing platform; 32. Pressing assembly; 321. Pressing cylinder; 322. Pressing component; 33. Fiber optic sensor; 34. Pressure plate; 35. Groove; 4. Pulling mechanism; 41. Gripper assembly; 411. Lower gripper; 412. Upper gripper; 413. Suction hole; 42. Pulling module; 43. Lateral movement cylinder; 44. Lifting cylinder; 5. Cutting mechanism; 51. Finger cylinder; 52. Scissors; 53. Fixing plate; 54. Knob; 55. Baffle; 56. Pin; 6. Filter sheet; Detailed Implementation It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0020] Example 1 like Figure 1 As shown, this embodiment proposes a filter cotton sheet 6 cutting device, including a feeding mechanism 2, a pressing mechanism 3, a pulling mechanism 4, and a cutting mechanism 5; as Figure 2 , Figure 3 , Figure 4 As shown, the pressing mechanism 3 includes a pressing platform 31 and a pressing assembly 32. The feeding mechanism 2 is installed on the pressing platform 31, and the pressing assembly 32 is installed at the end of the pressing platform 31 to press down the filter cotton sheet 6. The pulling mechanism 4 is located on the opposite side of the pressing assembly 32, as shown. Figure 5 , Figure 6 , Figure 7 As shown, the feeding mechanism 4 has a gripper assembly 41 for holding the filter cotton sheet 6, and the gripper assembly 41 can move closer to and further away from the pressing assembly 32; as Figure 8 , Figure 9 , Figure 10 As shown, the cutting mechanism 5 has scissors 52, which are located between the pressing assembly 32 and the gripper assembly 41, and are used to cut the filter cotton sheet 6.

[0021] The pressure platform 31 and the pressure assembly 32 are installed at their ends to ensure that the filter cotton sheet 6 is fixed near the cutting point, preventing the filter cotton sheet 6 from retracting. The gripper assembly 41 and the pressure assembly 32 are positioned opposite each other to form a tension zone for the filter cotton sheet 6. Combined with the central position of the scissors 52, this ensures that the cutting action occurs in a region with stable tension. The bidirectional movement capability of the gripper assembly 41 enables precise control of the traction length of the filter cotton sheet 6 (e.g., a fixed length of 5mm retraction), replacing manual measurement. The pressure assembly 32 fixes the rear end of the filter cotton sheet 6, the gripper assembly 41 pulls the front end of the filter cotton sheet 6, and the scissors 52 cuts between the two, forming a closed cutting force field to prevent the thin filter cotton sheet 6 from drifting. Through the coordinated layout of the feeding mechanism 2, the pressure mechanism 3, the pulling mechanism 4, and the cutting mechanism 5, the positioning stability problem of automated cutting of the lightweight breathable filter cotton sheet 6 is solved.

[0022] The bottom of the cutting equipment has a base 1, and the pressing mechanism 3, the pulling mechanism 4 and the cutting mechanism 5 are all installed on the base 1; the pressing platform 31 has a groove 35 for conveying the filter cotton sheet 6, the feeding mechanism 2 includes a feeding roll 21, the filter cotton sheet 6 to be cut is wound on the feeding roll 21, and a guide wheel 22 is also provided on the lower side of the feeding roll 21, the guide wheel 22 is located directly above the groove 35.

[0023] The base 1 integrates and mounts the pressure mechanism 3, pulling mechanism 4, and cutting mechanism 5 to enhance rigidity and positional accuracy, reducing cumulative errors. The groove 35 corresponds vertically to the guide wheel 22, with the groove 35 limiting the offset of the filter sheet 6 and the guide wheel 22 providing vertical restraint. The guide wheel 22, groove 35, and subsequent pressure plate 34 form a three-stage guiding restraint system, ensuring the output path of the material roll coincides with the cutting axis, avoiding dimensional deviations caused by skewing, and adapting to the flexible characteristics of the roll material.

[0024] The pressing platform 31 is also provided with a pressing plate 34 and an optical fiber sensor 33. The pressing plate 34 is installed on the upper side of the groove 35, and the optical fiber sensor 33 is aligned with the groove 35. A through hole is opened in the groove 35 at the position corresponding to the optical fiber sensor 33.

[0025] The pressure plate 34 covers the upper side of the groove 35 to prevent the filter cotton sheet 6 from falling out of the groove 35 during conveying. The fiber optic sensor 33 cooperates with the through hole to detect the blocking status of the filter cotton sheet 6 at the through hole of the groove 35 and provide real-time feedback on material shortage / interruption.

[0026] like Figure 4 As shown, the pressing assembly 32 includes a pressing cylinder 321 and a pressing component 322. The pressing platform 31 has a protruding plate protruding in the direction of the pulling mechanism 4. The pressing cylinder 321 is mounted on the protruding plate, and the pressing component 322 is mounted on the pressing cylinder 321.

[0027] The convex plate extension design allows the pressing element 322 to extend to a position close to the cutting point, shortening the pressing lever arm. The cylinder-driven pressing element 322 provides a rapid pressing / releasing response. The lower end of the pressing element 322 is shaped to fit the cross section of the groove 35, ensuring that the pressure is evenly distributed on the narrow filter cotton sheet 6.

[0028] The material pulling mechanism 4 includes a material pulling module 42, which is mounted on the base 1. The material pulling module 42 includes a ball screw pair and a slider mounted on the ball screw pair. The gripper assembly 41 is mounted on the slider. The ball screw pair and the slider convert the rotary motion of the servo motor into linear displacement, achieving a repeatability accuracy of ±0.01mm.

[0029] The material pulling mechanism 4 further includes a transverse cylinder 43 and a lifting cylinder 44. The transverse cylinder 43 is mounted on the slider of the material pulling module 42, and the lifting cylinder 44 is mounted on the transverse cylinder 43. The gripper assembly 41 includes an upper gripper 412 and a lower gripper 411. The upper gripper 412 is mounted on the lifting cylinder 44, and the lower gripper 411 is mounted on the slider of the material pulling module 42.

[0030] The combination of the lifting cylinder 44 and the lateral movement cylinder 43 enables the upper gripper 412 to perform longitudinal clamping and lateral avoidance, while the lower gripper 411 provides a fixed reference surface. During the clamping phase, the lifting cylinder 44 drives the upper gripper 412 to press down, forming a mechanical clamping force with the lower gripper 411; during the avoidance phase, the lateral movement cylinder 43 moves the upper gripper 412 horizontally out of the material picking area to avoid interfering with the suction nozzle.

[0031] The lower gripper 411 has an air chamber inside, and the top surface of the lower gripper 411 has an air suction hole 413. The air suction hole 413 is connected to the air chamber and is used to temporarily absorb the cut filter cotton sheet 6.

[0032] After the cutting process is completed, when the lower gripper 411 holds the cut filter cotton sheet 6, the air chamber generates negative pressure through the suction hole 413, forming an adsorption force. This firmly adsorbs the thin and easily movable filter cotton sheet 6 onto the surface of the lower gripper 411, solving the problem of displacement of the filter cotton sheet 6 after cutting and ensuring temporary fixation of the filter cotton sheet 6 before unloading. In actual operation, by reasonably adjusting the negative pressure of the air chamber, the adsorption force can be flexibly adjusted according to the material and size of the filter cotton sheet 6, ensuring stable adsorption of the filter cotton sheet 6 while avoiding difficulties in unloading due to over-adsorption.

[0033] The cutting mechanism 5 also includes a fixed seat, a finger cylinder 51, and a fixed plate 53. The fixed seat is mounted on the base 1, the finger cylinder 51 is mounted on the side of the fixed seat, the fixed plate 53 is mounted on the side of the finger cylinder 51, and the scissors 52 are mounted on the side of the fixed plate 53. The finger cylinder 51 drives the scissors 52 to pinch and cut the filter cotton sheet 6.

[0034] The fixed base, serving as the foundation of the cutting mechanism 5, is securely mounted on the base 1, providing a solid foundation for the entire cutting mechanism 5. A finger cylinder 51 is mounted on the side of the fixed base and connected to a fixed plate 53, while the scissors 52 are mounted on the side of the fixed plate 53. When a cutting command is issued, the finger cylinder 51 drives the scissors 52 to perform a pinching action, completing the cutting task. This structural layout gives the cutting mechanism 5 high flexibility and adjustability. The precise control of the finger cylinder 51 enables accurate adjustment of the opening and closing of the scissors 52, ensuring fast and accurate cutting. Simultaneously, the cooperation between the fixed base and the fixed plate 53 ensures the stability of the scissors 52 during the cutting process, effectively improving the cutting quality.

[0035] The cutting mechanism 5 also includes a knob 54, a baffle 55, and a pin 56. The side of the fixing plate 53 has a receiving cavity, and the scissors 52 are installed in the receiving cavity. The knob 54 passes through the tail of the scissors 52 and is installed on the fixing plate 53. The baffle 55 is installed on the side of the fixing plate 53 and blocks the outside of the scissors 52. There are two pins 56. One end of the two pins 56 is respectively installed on the two driving fingers of the finger cylinder 51, and the other end passes through the fixing plate 53 and is located on the upper and lower sides of the scissors 52 respectively.

[0036] The side cavity of the fixing plate 53 provides a stable installation space for the scissors 52. The tail of the scissors 52 is fixed to the fixing plate 53 by a knob 54. Tightening or loosening the knob 54 allows for convenient replacement and maintenance of the scissors 52. The baffle 55 is installed on the side of the fixing plate 53 and fits tightly against the outside of the scissors 52, providing safety protection and limiting excessive swinging of the scissors 52, ensuring the safety and stability of the cutting process. The two ends of the pin 56 are connected to the driving fingers of the finger cylinder 51 and the upper and lower sides of the scissors 52, respectively. When the finger cylinder 51 is activated, the pin 56 transmits the driving force to the scissors 52, causing the scissors 52 to open and close.

[0037] The coordinated operation of these components not only improves the stability and safety of the cutting mechanism 5, but also greatly facilitates the replacement and adjustment of the scissors 52. In actual production, when the scissors 52 wears or is damaged due to long-term use, the operator does not need to disassemble the entire cutting mechanism 5, but only needs to remove the knob 54 and the baffle 55 to quickly replace the scissors 52, which greatly shortens the equipment downtime and improves production efficiency.

[0038] Example 2 This embodiment proposes a working method for the filter cotton sheet 6 cutting device described in Embodiment 1, including: installing the filter cotton sheet 6 on the feed roll 21 and guiding the feed head to the cutting position; clamping the filter cotton sheet 6 with the gripper assembly 41 and moving the filter cotton sheet 6 to a predetermined length position; pressing the material mechanism 3 pressing down on the rear section of the filter cotton sheet 6 to fix the position of the filter cotton sheet 6; the cutting mechanism 5 cutting the filter cotton sheet 6 between the gripper assembly 41 and the pressing mechanism 3, wherein during cutting, the gripper assembly 41 clamps most of the area of ​​the filter cotton sheet 6, leaving only the cutting position of the cutting mechanism 5; after cutting, the gripper assembly 41 is staggered to expose the cut filter cotton sheet 6, and the cut filter cotton sheet 6 is temporarily adsorbed and fixed; the material suction nozzle sucks up the cut filter cotton sheet 6; after the material is picked up, the mechanisms are reset to repeat the cutting cycle.

[0039] The entire process begins with the feed roll 21 installing the filter sheet 6 and guiding the material head to the cutting position, providing a stable material source for subsequent processes. Then, the gripper assembly 41 precisely clamps the filter sheet 6 and smoothly moves it to the predetermined length position, ensuring accurate cutting dimensions. Subsequently, the pressing mechanism 3 presses down on the rear section of the filter sheet 6, firmly fixing its position and providing stable support for the following cutting process.

[0040] During the cutting stage, the cutting mechanism 5 is located between the gripper assembly 41 and the pressing mechanism 3, precisely cutting the filter cotton sheet 6. At this time, the gripper assembly 41 holds most of the filter cotton sheet 6, leaving only the cutting position required by the cutting mechanism 5. This unique three-step cutting strategy fully considers the characteristics of the filter cotton sheet 6, which is lightweight and highly breathable, and effectively avoids problems such as material displacement and deformation that are prone to occur in traditional cutting methods. After cutting, the cut filter cotton sheet 6 is exposed by staggering the gripper assembly 41, and the filter cotton sheet 6 is temporarily fixed by the adsorption function of the lower gripper 411. Finally, it is smoothly sucked away by the material suction nozzle, completing the unloading process.

[0041] This working method achieves a fully automated process for cutting the filter sheet 6, with each step closely linked and interconnected, greatly improving production efficiency and cutting quality. By precisely controlling the sequence and coordination of the actions of each mechanism, not only is the dimensional accuracy and consistency of the filter sheet 6 guaranteed, but manual intervention is also effectively reduced, production costs are decreased, and an efficient and reliable solution is provided for the production of the filter sheet 6.

[0042] The specific process is as follows: I. Preparatory Work Install the filter cotton roll: Based on the required size of the filter cotton sheet 6, taking 4mm×5mm as an example, install a 4mm wide roll of filter cotton sheet 6 on the feeding mechanism 2. The guide wheel 22 set on the lower side of the feeding roll 21 is located directly above the groove 35 of the pressing platform 31, and cooperates with the pressure plate 34 covering the groove 35 to prevent the filter cotton sheet 6 from shifting or tilting during transportation, ensuring that the filter cotton sheet 6 is transported smoothly.

[0043] Leading out the feed head: Locate the feed head of the filter cotton sheet 6 roll, ensuring it is flat, without wrinkles or damage. Pass the feed head through the pressing mechanism 3, allowing the filter cotton sheet 6 to be conveyed along the groove 35 of the pressing platform 31. The fiber optic sensor 33 on the pressing platform 31 is aligned with the groove 35 to detect in real time whether filter cotton sheet 6 is being conveyed.

[0044] II. Material Pulling and Positioning Gripper clamping: After the material head passes through the pressing mechanism 3, the servo motor of the pulling mechanism 4 drives the ball screw pair, which drives the gripper assembly 41 forward (moving towards the pressing assembly 32), and the gripper assembly 41 clamps the filter cotton sheet 6.

[0045] Determine the cutting length: After the gripper assembly 41 clamps the filter cotton sheet 6, the servo single axis group drives the gripper to move back 5mm, thereby determining that the required cutting length of the filter cotton sheet 6 is 5mm.

[0046] III. Pressing and fixing After the gripper assembly 41 retracts 5mm and is positioned, the pressing cylinder 321 drives the pressing component 322 to descend, so that the pressing component 322 presses onto the filter cotton sheet 6 in the rear section of the groove 35, fixing the filter cotton sheet 6 in place and preventing it from moving during the cutting process, thus ensuring cutting accuracy.

[0047] IV. Cutting and Separation Scissors 52 in position: The finger cylinder 51 drives two driving fingers to pinch together, which in turn drives two pins 56 to pinch together, thereby making the scissors 52 pinch together and ready to cut.

[0048] Three-step cropping strategy: Partial clamping and cutting: Due to the small area and breathability of the filter cotton sheet 6, it can only be clamped and sucked up as a whole. First, the gripper assembly 41 clamps most of the filter cotton sheet 6 to be cut, leaving only the lower cutting edge of the scissors 52 exposed. The finger cylinder 51 drives the scissors 52 to cut the filter cotton sheet 6, completing the cutting action. The blade thickness of the scissors 52 is less than 1mm, which can cut smaller filter cotton sheets 6 at a very low cost.

[0049] Clamping jaws offset: After cutting, the lateral movement cylinder 43 of the pulling mechanism 4 drives the upper clamping jaw 412 to move laterally, causing the upper clamping jaw 412 and the lower clamping jaw 411 to be offset. The upper clamping jaw 412 moves away, and at this time, the cut filter cotton sheet 6 is temporarily adsorbed on the lower clamping jaw 411. The filter cotton sheet 6 is adsorbed by negative pressure to prevent the filter cotton sheet 6 from being taken away when the upper clamping jaw 412 moves away.

[0050] Filter cotton sheet 6 is temporarily stored: After the upper clamp 412 is removed, the cut filter cotton sheet 6 is exposed and adsorbed on the lower clamp 411, waiting for the feeding nozzle to pick up the material.

[0051] V. Material feeding and unloading The gripper assembly 41 continues to retract (at this time, the lower gripper 411 is adsorbing the filter cotton sheet 6) to the unloading position. The unloading suction nozzle approaches the lower gripper 411 and uses negative pressure to suck up the cut filter cotton sheet 6 from the lower gripper 411, completing the entire cutting process. Afterwards, all mechanisms reset, ready for the next cutting cycle: the pressing component 322 is lifted by the pressing cylinder 321, and the gripper assembly 41 moves forward by the pulling module 42, re-gripping the filter cotton sheet 6. The above steps are repeated to realize the automated cutting and feeding of the filter cotton sheet 6.

[0052] While the specific embodiments of the present invention have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of the present invention are still within the scope of protection of the present invention.

Claims

1. A filter cotton sheet cutting device, characterized in that, The application relates to a cutting device for cutting filter cotton, which comprises a feeding mechanism, a pressing mechanism, a pulling mechanism and a cutting mechanism. The pressing mechanism comprises a pressing platform and a pressing assembly, the feeding mechanism is installed on the pressing platform, and the pressing assembly is installed at the end of the pressing platform and used for pressing the filter cotton sheet. The pulling mechanism is located at the opposite side of the pressing assembly, the pulling mechanism has a clamping jaw assembly for clamping the filter cotton sheet, and the clamping jaw assembly can move close to and away from the pressing assembly. The cutting mechanism has a scissors, which is located between the pressing assembly and the clamping jaw assembly and used for cutting the filter cotton sheet. The bottom of the cutting device is provided with a base, the pressing mechanism, the pulling mechanism and the cutting mechanism are all installed on the base, a groove for conveying the filter cotton sheet is formed in the pressing platform, the feeding mechanism comprises a feeding roll, the filter cotton sheet to be cut is wound on the feeding roll, and a guide wheel is further arranged on the lower side of the feeding roll.

2. The filter sheet cutting apparatus according to claim 1, wherein The pressing platform is further provided with a pressing plate and a fiber sensor, the pressing plate is installed on the upper side of the groove, the fiber sensor is aligned with the groove, and a through hole is formed in the corresponding position of the fiber sensor in the groove.

3. The filter sheet cutting apparatus according to claim 2, wherein The pressing assembly comprises a pressing cylinder and a pressing piece, the pressing platform has a convex plate protruding towards the pulling mechanism, the pressing cylinder is installed on the convex plate, and the pressing piece is installed on the pressing cylinder.

4. The filter sheet cutting apparatus according to claim 2, wherein The pulling mechanism comprises a pulling module, the pulling module is installed on the base, the pulling module comprises a ball screw pair and a sliding block installed on the ball screw pair, and the clamping jaw assembly is installed on the sliding block.

5. The filter sheet cutting apparatus according to claim 2, wherein The pulling mechanism further comprises a horizontal moving cylinder and a lifting cylinder, the horizontal moving cylinder is installed on the sliding block of the pulling module, the lifting cylinder is installed on the horizontal moving cylinder, the clamping jaw assembly comprises an upper clamping jaw and a lower clamping jaw, the upper clamping jaw is installed on the lifting cylinder, and the lower clamping jaw is installed on the sliding block of the pulling module.

6. The filter sheet trimming apparatus according to claim 5, wherein The lower clamping jaw is internally provided with an air cavity, an air suction hole is formed in the top surface of the lower clamping jaw, and the air suction hole is communicated with the air cavity and used for temporarily adsorbing the cut filter cotton sheet.

7. The filter sheet trimming apparatus according to claim 6, wherein The cutting mechanism further comprises a fixing seat, a finger cylinder and a fixing plate, the fixing seat is installed on the base, the finger cylinder is installed on the side surface of the fixing seat, the fixing plate is installed on the side surface of the finger cylinder, the scissors are installed on the side surface of the fixing plate, and the finger cylinder drives the scissors to pinch and cut the filter cotton sheet.

8. The filter sheet trimming apparatus according to claim 2, wherein The cutting mechanism further comprises a knob, a baffle and a pin shaft, the side surface of the fixing plate has a containing cavity, the scissors are installed in the containing cavity, the knob passes through the tail of the scissors and is installed on the fixing plate, the baffle is installed on the side surface of the fixing plate and blocks the outside of the scissors, and the pin shaft has two ends, one end of the two pin shafts is respectively installed on the two driving fingers of the finger cylinder, and the other end passes through the fixing plate and is respectively located on the upper and lower sides of the scissors.

9. The filter sheet trimming apparatus according to claim 8, wherein The application further discloses a cutting method of the cutting device.

10. A working method of a filter sheet cutting apparatus, characterized in that, The feeding roll is used for installing the filter cotton sheet and guiding the material head to the cutting position. The clamping jaw assembly is used for clamping the filter cotton sheet and moving the filter cotton sheet to a predetermined length position. The pressing mechanism is used for pressing the rear section of the filter cotton sheet to fix the position of the filter cotton sheet. ​ The cutting mechanism cuts the filter cotton sheet between the gripper assembly and the pressing mechanism, and the gripper assembly holds most of the filter cotton sheet during the cutting, leaving only the cutting position of the cutting mechanism; After cutting, the gripper assembly is staggered to expose the cut filter cotton sheet, and the cut filter cotton sheet is temporarily adsorbed and fixed; The material taking suction nozzle sucks away the cut filter cotton sheet; After the material taking is completed, the mechanisms are reset to repeat the cutting cycle.

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