A glass fiber mat rotary cross-cut system

Abstract

The application belongs to the technical field of glass fiber mat and discloses a glass fiber mat rotary cross-cutting system, which comprises a winding machine and a cross-cutting device, the winding machine comprises a winding machine frame, a winding rotary disc, two winding rollers, two winding transition rollers and a power assembly, the cross-cuting device comprises a cross-cutting machine frame, a rotating shaft, a swing frame, a rotary cutter assembly, a driving assembly, a driving rod and a driving cylinder, when the winding roller at the working position is about to be full, the winding rotary disc is rotated to drive the winding roller at the standby position of the working position to interchange, then the piston rod of the driving cylinder is extended, the rotating shaft is rotated through the driving rod, and then the swing frame is moved to the direction of the winding roller, then the driving assembly drives the rotary cutter assembly to rotate at high speed, so that the rotary cutter assembly can be quickly cut into when contacting with the glass fiber mat, the glass fiber mat is instantaneously cut off, the cutting action is rapid and decisive, the neatness of the cut is ensured, the automatic roll changing without stopping is realized, and the production efficiency and the automation level are significantly improved.

Description

Technical Field

[0001] This invention relates to the field of glass fiber mat technology, and in particular to a glass fiber mat rotary cross-cutting system. Background Technology

[0002] Fiberglass mat is a sheet-like composite reinforcing material made by bonding continuous or chopped filaments together using chemical adhesives or mechanical action. In the continuous production process of fiberglass mat, the product is usually output in roll form. When a roll reaches the set specifications (full roll), the continuously running mat material needs to be cut laterally to separate the full roll of product, and the cut starting end is quickly transferred to a new core cylinder to start the winding operation of the next roll. The smoothness and efficiency of this process directly affect the continuous operation capability of the entire production line and the product quality.

[0003] Currently, the transverse cutting device commonly used in fiberglass mat production lines is a reciprocating mechanical structure. This structure mainly consists of components such as pressure rollers, swing rods, cutters, and drive cylinders. Its working process is as follows: When the mat roll is detected to be fully wound, the pressure rollers gradually press the surface of the mat material under the action of the cylinder; after the pressing force reaches the set threshold, the swing rod drives the cutter to perform a reciprocating transverse cutting action to separate the mat material; after the cutting is completed, the swing rod drives the cutter to return to the initial position; after the operator or auxiliary mechanism completes the winding of the new core cylinder, the cylinder drives the pressure rollers to slowly reset, restoring the normal conveying and winding of the mat material.

[0004] When using the reciprocating mechanical structure described above for cross-cutting, the felt material conveying must be stopped first. After cutting is completed, manual rewinding is required before the conveying can be restarted. The entire process involves many steps, each of which must be performed sequentially and relies on manual assistance, resulting in a long time consumption for each roll change and limiting the overall operating speed of the production line. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a glass fiber mat rotary cross-cutting system.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a glass fiber mat rotary cross-cutting system, comprising a winding machine and a cross-cutting device, wherein the winding machine comprises a winding machine frame, a winding turntable is rotatably mounted on the winding machine frame, two winding rollers are symmetrically arranged left and right on the winding turntable, and two winding transition rollers are symmetrically arranged up and down on the winding turntable, and a power assembly is also provided on the winding machine frame to drive the winding turntable and the winding rollers to rotate respectively; the cross-cutting device comprises a cross-cutting machine frame, a rotating shaft with its length direction aligned with the axis of the winding roller is rotatably mounted at the top of the cross-cutting machine frame, a swing frame extending towards the winding machine frame is mounted on the rotating shaft, a rotating cutter assembly and a drive assembly for driving the rotating cutter assembly are mounted on the swing frame near the winding machine frame, drive rods are mounted at both ends of the rotating shaft away from the winding machine frame, and two drive cylinders are respectively mounted on the cross-cutting machine frame at both ends of the rotating shaft, the cylinder body end of the drive cylinder is hinged to the cross-cutting machine frame, and the piston rod end is hinged to the end of the corresponding drive rod away from the rotating shaft.

[0007] By adopting the above technical solution, a cross-cutting frame, a rotating shaft, a swing frame, a rotary cutter assembly, a drive assembly, a drive rod, and a drive cylinder are set up. When the take-up roller in the working position is about to be fully wound, the take-up turntable rotates, causing the take-up roller in the working position to be swapped with the take-up roller in the spare position. That is, the fully wound take-up roller is rotated to the spare position. After the take-up roller is fitted with the paper tube, it rotates to the working position. Then, the piston rod of the drive cylinder extends, which drives the rotating shaft to rotate through the drive rod, thereby causing the swing frame to move towards the take-up roller. Then, the drive assembly drives the rotary cutter assembly to rotate at high speed, so that when the rotary cutter assembly contacts the glass fiber mat, it can quickly cut into it and cut the glass fiber mat instantly. The cutting action is fast and decisive, ensuring the neatness of the cut. It realizes automatic roll changing without stopping the machine, which significantly improves production efficiency and automation level.

[0008] Furthermore, the rotary cutter assembly includes a rotary roller rotatably mounted on a swing frame, the roller core direction of which is consistent with the rotation shaft core direction. The rotary roller is provided with an elastic cutter holder and an elastic cover covering the elastic cutter holder. The elastic cover is an arc-shaped cover with the same core as the rotary roller. The elastic cutter holder is provided with a transverse cutter arranged along the core direction of the take-up roller. The cutting edge of the transverse cutter is arranged along the tangential direction of the take-up roller and protrudes from the edge of the elastic cover.

[0009] By adopting the above technical solution, an elastic blade holder, an elastic cover, and a cross-cutting blade are set up. The elastic blade holder can buffer the strong impact force generated at the moment of cross-cutting, and avoid damage to the blade or equipment due to rigid impact. The elastic cover rotates together with the rotating roller, which can protect the cross-cutting blade and prevent it from being damaged or accidentally injuring the operator when it is not in operation. It can also use its arc-shaped surface to smoothly guide and press the cut felt material onto the surface of the empty paper tube of the take-up roller after cutting, and complete the loading action at the same time as cutting.

[0010] Furthermore, the cross-cutting blade is an overall double-layered serrated blade with staggered arrangement.

[0011] By adopting the above technical solution, the cross-cutting blade is set as a double-layer sawtooth structure with staggered arrangement. When cutting glass fiber mat, a composite cutting effect similar to "shearing" is formed, which greatly improves the cutting ability of fiber materials and effectively avoids the "stringing" or "blade bridging" phenomenon caused by the good toughness of fibers. The staggered tooth design makes the cutting force distributed to different points, reduces the single-point cutting resistance, makes the cutting process more stable, and extends the service life of the blade and reduces the frequency of blade replacement.

[0012] Furthermore, the drive assembly includes a servo motor mounted on the swing frame, a drive wheel mounted on the output shaft of the servo motor, one end of the rotating roller passing through the swing frame and mounted on a driven wheel, and the drive wheel and the driven wheel being connected by a transmission belt.

[0013] By adopting the above technical solution, a servo motor is used in conjunction with belt drive to drive the rotating roller. The servo motor can precisely control the start, stop and rotation speed of the rotating cutter assembly, and can be flexibly matched according to the material, thickness and production speed of the felt to ensure the best linear speed cutting.

[0014] Furthermore, a cross-cutting transition roller is rotatably mounted on the cross-cutting frame, which is aligned with the direction of the take-up roller shaft. The cross-cutting transition roller is positioned below the take-up roller, and the tangent line from the lower side of the cross-cutting transition roller to the upper side of the take-up transition roller is tangent to the empty paper tube sleeved on the right take-up roller.

[0015] By adopting the above technical solution, a cross-cutting transition roller is set up, and a specific tangential path is formed with the winding transition roller and the empty paper tube. In this way, after the cutting is completed, the cut glass fiber mat can be accurately guided to the paper tube surface of the winding roller, realizing automatic mat feeding and rapid winding.

[0016] In summary, the present invention has the following beneficial effects: 1. In this application, by setting up a cross-cutting frame, a rotating shaft, a swing frame, a rotary cutter assembly, a drive assembly, a drive rod, and a drive cylinder, when the take-up roller in the working position is about to be fully wound, the take-up turntable rotates to drive the take-up roller in the spare position of the working position to be interchanged, that is, the take-up roller that is fully wound is rotated to the spare position. After the take-up roller is wrapped with the paper tube, it rotates to the working position. Then the piston rod of the drive cylinder extends, and drives the rotating shaft to rotate through the drive rod, thereby causing the swing frame to move towards the take-up roller. Then the drive assembly drives the rotary cutter assembly to rotate at high speed, so that when the rotary cutter assembly contacts the glass fiber mat, it can quickly cut into it and cut the glass fiber mat instantly. The cutting action is fast and decisive, ensuring the neatness of the cut. It realizes automatic roll changing without stopping the machine, which significantly improves production efficiency and automation level.

[0017] 2. In this application, by setting up an elastic blade holder, an elastic cover and a cross-cutting blade, the elastic blade holder can buffer the strong impact force generated at the moment of cross-cutting, and avoid damage to the blade or equipment due to rigid impact; the elastic cover rotates together with the rotating roller, which can protect the cross-cutting blade and prevent it from being damaged or accidentally injuring the operator when it is not in operation, and can also use its arc-shaped surface to smoothly guide and press the cut felt material onto the surface of the empty paper tube of the take-up roller after cutting, and complete the loading action at the same time as cutting.

[0018] 3. In this application, by setting a cross-cutting transition roller and forming a specific tangential path with the winding transition roller and the empty paper tube, the cut glass fiber mat can be accurately guided to the paper tube surface of the winding roller after cutting, so as to realize automatic mat feeding and rapid winding. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention in the rolled-up state; Figure 2 This is a structural schematic diagram of an embodiment of the present invention in a state of preparation for cross-cutting; Figure 3 This is a schematic diagram of the cross-cutting device according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the rotary cutter assembly according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the cross-cutting blade rotating towards the glass fiber mat according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the cross-cutting blade cutting glass fiber mat according to an embodiment of the present invention; Figure 7 This is a schematic diagram of how the elastic cover is extruded and the glass fiber felt is loaded onto the vehicle after being transversely cut according to an embodiment of the present invention.

[0020] In the diagram: 10. Winding machine; 11. Winding machine frame; 12. Winding turntable; 13. Winding roller; 14. Winding transition roller; 20. Cross-cutting device; 21. Cross-cutting frame; 22. Rotating shaft; 23. Swing frame; 24. Rotary cutter assembly; 241. Rotary roller; 242. Elastic cutter holder; 243. Elastic cover; 244. Cross-cutting blade; 245. Driven wheel; 25. Drive assembly; 251. Servo motor; 252. Drive wheel; 253. Transmission belt; 26. Drive rod; 27. Drive cylinder; 28. Cross-cutting transition roller. Detailed Implementation

[0021] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0022] like Figure 1-7 As shown in the figure, this application discloses a glass fiber mat rotary cross-cutting system, including a winding machine 10 and a cross-cutting device 20. The winding machine 10 is used to wind up the glass fiber mat, and the cross-cutting device 20 is used to cut the glass fiber mat when it is fully wound to achieve product separation and to complete the reloading of the cut glass fiber mat, so as to realize automatic roll changing and automatic loading without stopping the machine, thereby improving production efficiency and automation level.

[0023] Specifically, the winding machine 10 includes a winding machine frame, on which a winding turntable 12 is rotatably mounted via bearings. Two winding rollers 13 are symmetrically arranged on the winding turntable 12 for alternately winding the fiberglass mat, with the right side being the working position and the left side the standby position. Two winding transition rollers 14 are symmetrically arranged on the winding turntable 12 for guiding and changing the orientation of the fiberglass mat. The winding machine frame also includes a power assembly that drives the winding turntable 12 and the winding rollers 13 to rotate, thereby achieving rotational repositioning of the winding turntable 12 and constant tension winding of each individual winding roller 13.

[0024] The cross-cutting device 20 includes a cross-cutting frame 21. A rotating shaft 22 is rotatably mounted on the top of the cross-cutting frame 21 via a bearing seat. The length direction of the rotating shaft 22 is aligned with the axis of the winding roller 13. A swing frame 23 extending towards the winding machine 10 is fixedly mounted on the rotating shaft 22. The swing frame 23 is a rectangular frame structure, and its length direction is aligned with the length direction of the rotating shaft 22. Drive rods 26 are mounted at both ends of the rotating shaft 22 in a direction away from the winding machine 10. The drive rods 26 can be right-angled bent rods or straight rods. Two drive cylinders 27 are respectively mounted on the cross-cutting frame 21 at both ends of the rotating shaft 22. The cylinder body of the drive cylinder 27 is hinged to the cross-cutting frame 21 via a hinge seat, and the piston rod end is hinged to the end of the corresponding drive rod 26 away from the rotating shaft 22 via a hinge joint. By extending and retracting the two drive cylinders 27, the drive rods 26 swing around the center of the rotating shaft 22, thereby driving the rotating shaft 22 to rotate and causing the swing frame 23 to swing around the rotating shaft 22. A rotary cutter assembly 24 and a drive assembly 25 for driving the rotary cutter assembly 24 to rotate are provided at one end of the swing frame 23 near the winding machine 10 frame. Under the action of the drive cylinder 27, the rotary cutter assembly 24 moves towards or away from the winding machine 10.

[0025] The rotary cutter assembly 24 includes a rotary roller 241 rotatably mounted on a swing frame 23 via bearings. The core direction of the rotary roller 241 is aligned with the core direction of the rotating shaft 22. An elastic cutter holder 242 is mounted on the rotary roller 241, and a cross-cutting blade 244 arranged along the core direction of the take-up roller 13 is mounted on the elastic cutter holder 242. Specifically, several guide holes are formed in the elastic cutter holder 242, and guide posts are installed within these holes. One end of each guide post is connected to the cross-cutting blade 244, and the other end passes through the guide hole and is fitted with a limiting plate. A buffer spring is fitted onto the guide post, applying an outward elastic force to the cross-cutting blade 244. This buffers the strong impact force generated during the cross-cutting of the fiberglass mat, protecting the blade and equipment.

[0026] An elastic cover 243 is also provided on the rotating roller 241, covering the elastic cutter holder 242. The elastic cover 243 is an arc-shaped cover with the same core as the rotating roller 241. When the rotating roller 241 rotates to perform cross-cutting, the elastic cover 243 squeezes the empty paper tube on the winding roller 13 at the working position, squeezing and winding the glass fiber felt in the middle onto the empty paper tube of the winding roller 13, thus achieving automatic loading. The elastic cover 243 is made of elastic materials such as rubber or flexible polyurethane. Its elastic parameters and the distance between it and the paper tube of the winding roller 13 at the working position need to be determined through multiple tests under actual working conditions: if the distance is too far or the elasticity is insufficient, it will result in the inability to reliably squeeze the felt to complete the loading; if the distance is too close or the elasticity is too hard, it may cause a large impact on the equipment, or even cause the equipment to jam.

[0027] The cutting edge of the cross-cutting blade 244 is arranged along the tangential direction of the take-up roller 13 and protrudes from the edge of the elastic cover 243. In this way, when the rotating roller 241 rotates, the cutting edge of the cross-cutting blade 244 contacts the fiberglass mat first and will not be blocked by the elastic cover 243, thus affecting the cutting.

[0028] The 244 cross-cutting blade features a double-layered, staggered serrated structure made of high-hardness materials such as high-speed tool steel. The staggered serrations engage with the fiberglass mat sequentially during cutting, creating a step-by-step cutting action. Compared to straight blades or single-layered serrations, this provides better cutting performance for fiber materials like fiberglass, which have good toughness. It effectively prevents fiber fraying and unbroken cuts after cutting. Simultaneously, the staggered structure disperses cutting resistance, reduces blade wear, and extends blade life.

[0029] The drive assembly 25 includes a servo motor 251 mounted on the swing frame 23. A drive wheel 252 is mounted on the output shaft of the servo motor 251. One end of the rotating roller 241 passes through the swing frame 23 and has a driven wheel 245 mounted on it. The drive wheel 252 and the driven wheel 245 are connected by a transmission belt 253. The servo motor 251 can precisely control the start, stop, and rotation speed of the rotary cutter assembly 24, and can be flexibly matched according to the material, thickness, and production speed of the felt, ensuring optimal linear speed cutting. After the servo motor 251 starts, the output shaft drives the drive wheel 252 to rotate. The drive wheel 252 transmits power to the driven wheel 245 through the transmission belt 253, thereby driving the rotating roller 241 and the driven wheel 245 to rotate synchronously, allowing the cross-cutting blade 244 mounted on the rotating roller 241 to stably complete the rotary cutting action.

[0030] A cross-cutting transition roller 28 is rotatably mounted on the cross-cutting frame 21 via a bearing housing, with its shaft orientation aligned with that of the take-up roller 13. The cross-cutting transition roller 28 is positioned lower than the take-up roller 13, and the tangent line between the lower side of the cross-cutting transition roller 28 and the upper side of the upper take-up transition roller 14 is tangent to the empty paper tube fitted onto the right take-up roller 13. This arrangement ensures that the paper tube is not damaged when the cross-cutting blade 244 cuts the fiberglass felt. After cutting, the cut end of the fiberglass felt can be precisely guided to the surface of the empty paper tube on the take-up shaft via the elastic cover 243, achieving automatic felt feeding and rapid take-up. Specifically, the bearing housing is fitted with a slotted hole when connected to the cross-cutting frame 21, allowing for fine-tuning of the position of the cross-cutting transition roller 28 to accommodate paper tubes of different diameters. Before starting the machine, adjust the position of the bearing seat according to the actual working conditions to position the cross-cutting transition roller 28. This ensures that the cross-cutting transition roller 28, the empty paper tube of the winding roller 13, and the winding transition roller 14 are always tangent during operation, thereby reducing many pre-cutting preparation actions in the traditional cross-cutting method.

[0031] The working principle of the glass fiber mat rotary cross-cutting system in this embodiment is as follows: the glass fiber mat moves from the lower side of the cross-cutting transition roller 28 to the upper side of the take-up roller 13 in the working position, and continues to be wound under constant tension. When the take-up roller 13 in the working position is about to be wound to the set full roll length, the take-up turntable 12 rotates 180 degrees under the drive of the power component, and rotates the take-up roller 13, which was originally in the standby position and pre-loaded with empty paper tubes, to the right working position. The take-up roller 13, which was originally fully wound, rotates to the left standby position. At this time, the glass fiber mat moves from the lower side of the cross-cutting transition roller 28 to the upper side of the take-up transition roller 14 in the upper position and then to the full roll of mat in the standby position. The glass fiber mat between the cross-cutting transition roller 28 and the take-up transition roller 14 is tangent to the empty paper tube on the take-up roller 13 in the working position.

[0032] After the repositioning is completed, the two drive cylinders 27 extend their piston rods in sync, and drive the rotating shaft 22 to rotate as a whole by pushing the drive rods 26 at both ends. This causes the swing frame 23 to swing towards the winding machine 10, so that the rotating cutter assembly 24 moves closer to the glass fiber mat to the designated position. Then, the meter counter starts the countdown to full roll. Once the time is up, the servo motor 251 starts quickly and drives the rotating roller 241 to rotate rapidly through the belt drive 253. The double-layered staggered saw teeth of the cross cutter 244 quickly cut into the tensioned glass fiber mat along the tangential direction, and instantly cut the glass fiber mat neatly. The elastic cover 243 continues to rotate with the rotating roller 241, using its arc-shaped surface to smoothly press the cut glass fiber mat end onto the surface of the empty paper tube of the take-up roller 13 in the working position. In conjunction with the pre-determined tangent path of the cross-cutting transition roller 28, the automatic loading of the mat is completed. Then, the piston rod of the drive cylinder 27 retracts, driving the swing frame 23 and the rotating cutter assembly 24 to reset. The fully rolled mat can be unloaded from the take-up roller 13 in the standby position. The entire roll changing and cutting process is fully automated, requiring no manual intervention or machine downtime, effectively improving the production and processing efficiency of glass fiber mat.

[0033] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A glass fiber mat rotary cross-cutting system, characterized in that: The device includes a winding machine (10) and a cross-cutting device (20). The winding machine (10) includes a winding machine (10) frame, on which a winding turntable (12) is rotatably mounted. The winding turntable (12) has two winding rollers (13) arranged symmetrically to the left and right, and two winding transition rollers (14) arranged symmetrically to the top and bottom. The winding machine (10) frame is also equipped with power components that drive the winding turntable (12) and the winding rollers (13) to rotate. The cross-cutting device (20) includes a cross-cutting frame (21), at the top of which a rotating shaft (22) is rotatably mounted with its length direction aligned with the axis of the winding rollers (13). A swing frame (23) extending toward the winding machine (10) is provided on the rotating shaft (22). A rotating cutter assembly (24) and a drive assembly (25) for driving the rotating cutter assembly (24) to rotate are provided at one end of the swing frame (23) near the winding machine (10). Drive rods (26) are provided at both ends of the rotating shaft (22) in the direction away from the winding machine (10). Two drive cylinders (27) are respectively provided at both ends of the rotating shaft (22) on the cross-cutting frame (21). The cylinder body end of the drive cylinder (27) is hinged to the cross-cutting frame (21), and the piston rod end is hinged to the end of the corresponding drive rod (26) away from the rotating shaft (22).

2. The glass fiber mat rotary cross-cutting system according to claim 1, characterized in that: The rotary cutter assembly (24) includes a rotary roller (241) rotatably mounted on a swing frame (23). The core direction of the rotary roller (241) is consistent with the core direction of the rotating shaft (22). The rotary roller (241) is provided with an elastic cutter holder (242) and an elastic cover (243) covering the elastic cutter holder (242). The elastic cover (243) is an arc-shaped cover with the same core as the rotary roller (241). The elastic cutter holder (242) is provided with a cross-cutting blade (244) arranged along the core direction of the take-up roller (13). The cutting edge of the cross-cutting blade (244) is arranged along the tangential direction of the take-up roller (13) and protrudes from the edge of the elastic cover (243).

3. The glass fiber mat rotary cross-cutting system according to claim 2, characterized in that: The cross-cutting blade (244) is an overall double-layered sawtooth structure blade with staggered arrangement.

4. The glass fiber mat rotary cross-cutting system according to claim 2, characterized in that: The drive assembly (25) includes a servo motor (251) mounted on the swing frame (23). A drive wheel (252) is mounted on the output shaft of the servo motor (251). One end of the rotating roller (241) passes through the swing frame (23) and is mounted on a driven wheel (245). The drive wheel (252) and the driven wheel (245) are connected by a transmission belt (253).

5. The glass fiber mat rotary cross-cutting system according to claim 1, characterized in that: The cross-cutting frame (21) is also rotatably equipped with a cross-cutting transition roller (28) that is aligned with the axis of the take-up roller (13). The cross-cutting transition roller (28) is arranged below the take-up roller (13), and the tangent line from the lower side of the cross-cutting transition roller (28) to the upper side of the take-up transition roller (14) above it is tangent to the empty paper tube sleeved on the right take-up roller (13).

Images