Slitting equipment for insulating stays

Abstract

The utility model relates to the technical field of insulating material processing equipment, in particular to slitting equipment for an insulating supporting strip. A slitting device for an insulation supporting strip comprises a frame body which forms a basic supporting structure of the device. The slitting assembly is arranged in the upper machining area of the frame body and comprises an upper slitting assembly and a lower slitting assembly which are arranged in a spaced mode, the upper slitting assembly is used for conducting rotary cutting on the upper half portion of the supporting strip, and the lower slitting assembly is used for conducting rotary cutting on the lower half portion of the supporting strip; the rolling assemblies are arranged on the upper portion of the frame body at intervals in the machining direction, located on the two sides of the slitting assembly and used for pressing the supporting strips to prevent longitudinal tilting; the dust removal assembly comprises a liftable dust removal cover arranged outside the upper cutting assembly and a fixed dust removal cover arranged below the lower cutting assembly and is used for collecting cutting dust; and the traction assembly is arranged at one end of the frame body, comprises a driving unit and a transmission mechanism and is used for pulling the stay to move at a constant speed.

Description

Technical Field

[0001] This utility model relates to the technical field of insulating material processing equipment, specifically to a slitting device for insulating support strips, which is particularly suitable for solving the problems of stress concentration during the slitting process leading to support strip breakage, cutting warping, dust pollution, and unstable feeding. Background Technology

[0002] Insulating support strips are key insulating components in power equipment, and their slitting quality directly affects the product's mechanical strength and insulation performance. Traditional slitting equipment has the following drawbacks:

[0003] 1. Stress concentration leads to breakage of support bars: Existing insulation board slitting machines usually use a single set of saw blades to cut from top to bottom in one go, which causes the internal stress of the support bars to concentrate instantly. The breakage rate after slitting is as high as 15% or more, which has a significant impact on brittle composite materials.

[0004] 2. Warping of support strips during cutting: Although the existing laminate slitting device is equipped with pressure plates to prevent warping, the rigid pressure plates cannot adapt to the dynamic pressing requirements of support strips of different thicknesses. During cutting, there is still local warping that causes the cut to be skewed (deviation > 0.5mm), and the surface of the support strip is easily scratched.

[0005] 3. Dust pollution during the cutting process: Existing insulation material slitting equipment usually only has a fixed dust collection hood above the saw blade, and the dust collection rate of the lower cutting part is less than 40%.

[0006] The aforementioned defects severely restrict the slitting pass rate of insulating support strips (pass rate of traditional equipment <85%) and the safety of the production environment. Utility Model Content

[0007] To overcome the problems of stress concentration during the cutting of insulating support bars in the prior art, which leads to breakage, longitudinal warping, and dust pollution, this utility model provides a cutting device for insulating support bars that adopts optimized cutting structure, dynamic pressing to prevent warping, and dynamic and static dust removal technology, which greatly improves the pass rate of insulating support bars.

[0008] The technical solution adopted by this utility model to solve its technical problem is as follows: an insulating support strip slitting device, including a frame, which constitutes the basic support structure of the device; a slitting assembly, arranged in the upper processing area of ​​the frame, including an upper slitting assembly and a lower slitting assembly arranged at intervals, wherein the upper slitting assembly is used to rotary cut the upper half of the support strip, and the lower slitting assembly is used to rotary cut the lower half of the support strip; a roller pressing assembly, arranged at intervals along the processing direction on the upper part of the frame, located on both sides of the slitting assembly, for pressing the support strip to prevent longitudinal warping; a dust removal assembly, including a liftable dust removal hood arranged outside the upper slitting assembly and a fixed dust removal hood arranged below the lower slitting assembly, for collecting cutting dust; and a traction assembly, arranged at one end of the frame, including a drive unit and a transmission mechanism, for traction of the support strip to move at a constant speed.

[0009] The aforementioned insulating support strip slitting equipment includes a slitting assembly comprising a shaft, multiple saw blades mounted on the shaft, and a partition cylinder for separating the saw blades. The shaft has a straight groove cross-section.

[0010] The aforementioned insulating support bar cutting equipment has a saw blade with a through hole that matches the straight groove-shaped cross-section of the shaft.

[0011] The aforementioned insulating support strip slitting equipment includes the following roller pressing assembly: a hanging column fixed to the upper part of the frame; a shaft seat pinned to the hanging column and capable of swinging longitudinally around it; a pressure roller sleeved on one end of the shaft seat; and a tensioner connecting the frame and the shaft seat for adjusting the downward pressure of the pressure roller.

[0012] The aforementioned insulating support strip slitting equipment, the roller pressing assembly further includes a support roller disposed inside the frame and located below the pressure roller, the surface of the support roller being higher than the processing plane of the frame.

[0013] The aforementioned insulating support strip cutting equipment includes a liftable dust cover comprising a cover body, a vertical guide rod, a pressure frame, and a second spring, wherein the pressure frame abuts against the surface of the support strip via the second spring.

[0014] The aforementioned insulating support bar slitting equipment includes a belt drive mechanism and a universal joint that connect the drive unit to the roller pressing assembly shaft seat.

[0015] The aforementioned insulating support strip is cut using a slitting device, and the drive unit is a variable frequency speed control motor.

[0016] The beneficial effects of this utility model are:

[0017] 1. Segmentation structure optimization: By using upper and lower segmentation components arranged at intervals, the upper half of the support bar is first rotary-cut to release stress, and then the lower half is cut, which greatly reduces the breakage rate of the support bar.

[0018] 2. Dynamic clamping and anti-warping: The longitudinally swingable bearing seat is used in conjunction with the tensioner to achieve elastic clamping of the pressure roller on the support strips of different thicknesses, completely eliminating cutting warping and avoiding surface damage.

[0019] 3. High-efficiency dust removal: Based on the dual-mode layout of liftable dust hood and fixed dust hood, the dust collection rate is greatly improved. Attached Figure Description

[0020] The present invention will be further described below with reference to the embodiments and examples.

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment.

[0022] Figure 2 This is a side view of the structure of an embodiment.

[0023] Figure 3 This is a front view structural diagram of an embodiment.

[0024] Figure 4 This is a schematic diagram of the slitting component.

[0025] Figure 5 This is a schematic diagram of the roll forming assembly.

[0026] Figure 6 This is a schematic diagram of the dust removal component.

[0027] Figure 7 This is a schematic diagram of the tensioner.

[0028] In the diagram: 1. Frame; 2. Cutting assembly; 21. First motor; 22. Shaft; 23. Saw blade; 24. Partition cylinder; 3. Roller assembly; 31. Hanging column; 32. Pressure roller; 33. Shaft seat; 34. Tensioner; 341. Tie rod; 342. Lock nut; 343. First spring; 35. Support roller; 4. Dust removal assembly; 41. Cover; 42. Frame strip; 43. Guide rod; 44. Bolt rod; 45. Second spring; 46. Pressure frame; 5. Second motor. Detailed Implementation

[0029] Example

[0030] In the production and processing of insulating support strips, slitting is a critical process, and its quality directly affects the subsequent performance and product quality of the insulating support strips. This embodiment provides a slitting device for insulating support strips, aiming to solve problems such as stress concentration leading to strip breakage, strip warping during cutting, dust pollution, and unstable material feeding and discharging in traditional slitting equipment. Figure 1-7As shown, this insulating support strip slitting equipment mainly consists of a frame 1, a slitting assembly 2, a roller pressing assembly 3, a dust removal assembly 4, and a traction assembly. The frame 1 serves as the basic support structure of the entire equipment, providing a stable installation platform for other components. The slitting assembly 2 is responsible for performing rotary cutting and separation of the support strips and is the core component for completing the slitting of the support strips. The roller pressing assembly 3 is used to anti-tilt clamp the support strips to ensure the stability of the support strips during the cutting process. The dust removal assembly 4 is used to reduce the dust generated during the rotary cutting of the support strips and improve the working environment. The traction assembly is used to provide constant-speed traction for the support strips to ensure relatively stable movement of the support strips when they are fed and discharged.

[0031] The frame 1 is the basic framework of the entire slitting equipment. It is welded from high-strength steel and has good rigidity and stability. The frame 1 is designed as a cuboid frame structure. The upper part is the processing area for the support bars. The slitting assembly 2 and the roller pressing assembly 3 are arranged sequentially along the processing direction on the upper part. The dust removal assembly 4 is sleeved on the outside of the upper slitting assembly 2. The traction assembly is set at one end of the upper part of the frame 1. The bottom of the frame 1 is equipped with adjustable height anchor bolts. By adjusting the height of the anchor bolts, the frame 1 can be kept level on uneven ground to ensure the normal operation of the equipment.

[0032] The slitting assembly 2 is one of the core components of this equipment. Its function is to perform rotary cutting and slitting operations on the support bars. To reduce the risk of breakage due to stress concentration after the support bars are directly cut from top to bottom, two sets of slitting assemblies 2 are arranged. One set is located on the upper part of the support bars, and the other set is located on the lower part of the support bars, with a certain distance between the two sets of slitting assemblies 2. Each set of slitting assemblies 2 includes components such as a first motor 21, a shaft 22, a saw blade 23, and a partition cylinder 24. The first motor 21 is located at the lower part of the frame 1 and is fixedly connected to the frame 1 by bolts. The first motor 21 is a high-performance AC asynchronous motor, which has the advantages of high power, stable speed, and reliable operation. The output shaft of the first motor 21 is fixedly connected by a key. A pulley is provided for transmitting power to the pulley on the shaft 22 via a belt. The shaft 22 is horizontally positioned on the upper part of the frame 1 in the machining direction. One end of the shaft 22 is connected to the frame 1 via a bearing seat. The bearing seat uses a high-quality bearing that can withstand large radial and axial loads while ensuring flexible circumferential rotation of the shaft 22. The other end of the shaft 22 does not have a bearing seat and is secured to the saw blade 23 and the partition cylinder 24 with a nut. To prevent slippage between the saw blade 23 or the partition cylinder 24 and the shaft 22, the cross-section of the shaft 22 is designed as a straight groove. This straight groove cross-section design increases the friction between the saw blade 23 and the partition cylinder 24 and the shaft 22, ensuring that the saw blade 23 and the partition cylinder 24 can rotate synchronously when the shaft 22 rotates.

[0033] The saw blade 23 is made of high-strength, high-hardness alloy material, possessing a sharp cutting edge and good wear resistance. The diameter of the saw blade 23 is selected according to the slitting requirements of the support bar, generally between 200-300mm. The spacing between the saw blades 23 is adjusted according to the required slitting width of the support bar, achieved by increasing or decreasing the number of spacers 24. When installing the saw blade 23, the straight groove-shaped through hole of the saw blade 23 needs to be aligned with the straight groove-shaped section of the shaft 22, and then... The partition cylinder 24, fitted onto the shaft 22, serves to separate the saw blades 23, ensuring accurate spacing between them. Made of steel, the outer diameter of the partition cylinder 24 matches the inner diameter of the saw blades 23. Its length is determined by the required width of the support strips. During installation, the partition cylinder 24 is fitted onto the shaft 22, positioned at the interval between the saw blades 23. Finally, the saw blades 23 and the partition cylinder 24 are secured to the shaft 22 by tightening the nut at the end of the shaft 22.

[0034] During operation, the first motor 21 starts, driving the shaft 22 to rotate via belt and pulley. The saw blade 23 on the shaft 22 rotates at high speed, and the support bar moves forward under the action of the traction component. It first passes through the upper cutting component 2, where the saw blade 23 performs a rotary cutting operation on the upper half of the support bar. Then, the support bar continues to move forward, passing through the lower cutting component 2, where the saw blade 23 performs a rotary cutting operation on the lower half of the support bar. By first rotary cutting the upper half of the support bar and then rotary cutting the lower half, the internal stress of the support bar can be fully released, reducing the probability of breakage after rotary cutting.

[0035] To prevent the support bars from tilting longitudinally during the cutting process, several sets of roller pressing assemblies 3 are arranged at intervals along the processing direction on the upper part of the frame 1. Each set of roller pressing assemblies 3 includes components such as a hanging column 31, a pressure roller 32, a bearing seat 33, a tensioner 34, and a support roller 35. The hanging column 31 is fixed to the upper part of the frame 1 by bolts, and its function is to provide an installation base for the bearing seat 33. The hanging column 31 is made of cylindrical steel and its surface is precision machined to ensure the fitting accuracy between it and the bearing seat 33. The bearing seat 33 is arranged on the side of the hanging column 31 and is pinned to its center. This pinning method allows the bearing seat 33 to swing longitudinally around the hanging column 31. The roller 32 is fitted onto one end of the bearing seat 33 to accommodate the pressing requirements of support bars of different thicknesses. The bearing seat 33 has a bearing for the free rotation of the roller 32. The bearing is a deep groove ball bearing, which has the advantages of low friction coefficient and flexible rotation. The roller 32 is made of rubber material and has a certain degree of elasticity, which can prevent damage to the surface of the support bar while pressing it. The diameter of the roller 32 is selected according to the width of the support bar and the processing requirements. Generally, the diameter is between 100-150mm. The length of the roller 32 is slightly larger than the width of the support bar to ensure that the support bar can be fully pressed.

[0036] To ensure sufficient downward pressure from the pressure roller 32 on the support bar, a tensioner 34 is arranged on one side of the bearing seat 33. The tensioner 34 includes components such as a pull rod 341, a lock nut 342, and a first spring 343. The pull rod 341 is positioned between the frame 1 and the bearing seat 33. The upper part of the pull rod 341 is fitted with a first spring 343 that abuts against the frame 1. The lower end of the pull rod 341 is threadedly connected to a lock nut 342, with the upper end of the lock nut 342 abutting against the lower end of the first spring 343. By adjusting the lock nut 342, the tension of the first spring 343 can be changed, thereby altering the resistance of the bearing seat 33 during rotation, and thus changing the downward pressure of the pressure roller 32 on the support bar. During use, the tension of the tensioner 34 can be adjusted according to factors such as the material and thickness of the support bar, so that the pressure roller 32 applies appropriate downward pressure to the support bar. The upper part of the frame 1 is also equipped with a support roller 35, which supports the support bar to reduce the wear on the lower surface of the support bar. The support roller 35 is arranged inside the frame 1 and its two ends are connected to it through bearing seats. The edge of the support roller 35 is higher than the horizontal plane of the support bar processed on the upper part of the frame 1 to avoid contact between the lower surface of the support bar and the frame 1, so that the support bar can only move along the processing direction between the pressure roller 32 and the support roller 35. The support roller 35 is made of steel and the surface is chrome-plated, which has good wear resistance and corrosion resistance.

[0037] Before entering the slitting assembly 2, the support bar passes through the roller pressing assembly 3. Under the action of the tensioner 34, the pressure roller 32 applies a certain downward pressure to the support bar, pressing the support bar tightly onto the support roller 35. As the support bar moves forward, the pressure roller 32 and the support roller 35 also rotate, which guides and clamps the support bar, preventing it from tilting longitudinally during the cutting process and ensuring the stability of the support bar during the cutting process.

[0038] To reduce dust generated during the rotary cutting process, this equipment is equipped with a dust collection component 4. A liftable dust collection component 4 is fitted around the upper part of the cutting component 2, while a fixed dust collection hood is installed below the lower part of the cutting component 2. The liftable dust collection component 4 includes a hood body 41, frame bars 42, guide rods 43, bolts 44, a second spring 45, and a pressure frame 46. The hood body 41 is made of metal sheet and is a semi-enclosed cylindrical shape. It is fitted around the saw blade 23 of the upper cutting component 2. The function of the hood body 41 is to collect dust generated during the rotary cutting process and prevent dust from spreading to the surrounding environment. A cavity is provided on the upper part of the frame 1 for the vertical sliding of the hood body 41. 1. It can slide up and down in the cavity to adapt to the processing requirements of support bars of different thicknesses. The outer side of the cover 41 is symmetrically arranged with frame bars 42 that are bolted to it. The frame bars 42 are made of steel and have a certain strength and rigidity. The function of the frame bars 42 is to provide an installation base for components such as guide rods 43 and bolt rods 44. The upper part of the frame bars 42 is vertically arranged with guide rods 43 that are slidably connected to it. The guide rods 43 are made of cylindrical steel and the surface is precision machined to ensure the sliding fit accuracy between them and the frame bars 42. The lower end of the guide rods 43 is arranged with a pressure frame 46 for abutting the support bars. The pressure frame 46 is made of rubber material and the surface has a certain elasticity, which can prevent damage to the surface of the support bars while pressing them.

[0039] A bolt 44 is vertically arranged in the middle of the frame bar 42. The bolt 44 is made of threaded rod, with its upper end fixedly connected to the frame bar 42 and its lower end passing through the pressure frame 46. A second spring 45 is sleeved on the outside of the bolt 44. The two ends of the second spring 45 abut against the frame bar 42 and the pressure frame 46, respectively. Through the elastic force of the second spring 45, the pressure frame 46 can be tightly abutted against the upper surface of the support bar. When the thickness of the support bar changes, the pressure frame 46 can automatically adjust its position under the action of the second spring 45 to ensure that the cover 41 always remains in contact with the support bar. A suitable distance improves dust removal efficiency. The fixed dust hood is arranged below the lower cutting component 2. Its structure is similar to that of the liftable dust removal component 4, but the hood 41 is fixed to the frame 1 and cannot slide up or down. The fixed dust hood is connected to the dust removal system through pipes, which transport the collected dust to the dust removal equipment for processing. During operation, the dust generated by rotary cutting is collected by the hood 41 and the fixed dust hood and processed by the dust removal system, which effectively reduces dust pollution in the working environment and improves the working conditions of the operators.

[0040] To ensure relatively stable movement of the support bars during feeding and discharging, a second motor 5 is arranged at one end of the upper part of the frame 1 to provide constant-speed traction for the support bars. The second motor 5 is driven by a belt and pulley through a shaft seat 33 of the roller pressing assembly 3. To meet the circumferential rotation requirements of the shaft seat 33, a universal joint connected to the pulley is added to one end of the shaft seat 33. The second motor 5 is a variable frequency speed control motor, which has advantages such as a wide speed range, smooth operation, and high control precision. The output shaft of the second motor 5 is connected to a pulley via a key, which transmits power to the pulley on the shaft seat 33 via a belt. By adjusting the speed of the second motor 5, the rotation speed can be controlled. The feed speed of the support bar meets different processing requirements. The belt uses a V-belt, which has the advantages of smooth transmission, low noise, and no slippage under overload. The number of teeth and diameter of the pulley are designed according to the transmission ratio and speed requirements. During transmission, the belt and pulley are closely fitted and transmit power through friction. The function of the universal joint is to enable the bearing 33 to rotate circumferentially and receive power from the second motor 5. The universal joint adopts a cross-shaft universal joint, which has the advantages of simple structure, high transmission efficiency, and strong angle compensation capability. When the bearing 33 swings around the hanging column 31, the universal joint can automatically adjust the angle to ensure stable power transmission.

[0041] During operation, the second motor 5 starts and drives the bearing seat 33 of the roller pressing assembly 3 to rotate through the belt, pulley and universal joint, which in turn drives the pressure roller 32 and the support roller 35 to rotate. Under the friction of the pressure roller 32 and the support roller 35, the support bar is pulled forward at a constant speed, which ensures that the movement of the support bar when feeding and discharging materials is relatively stable and improves the cutting quality.

[0042] Workflow: According to the processing requirements, prepare the insulating support strips to be cut, check the surface quality of the support strips to ensure that there are no obvious defects, damage or impurities. If necessary, the support strips can be cleaned to improve the cutting quality. Measure the width and thickness of the support strips. Based on the measurement results, adjust the spacing between the saw blades 23 of the cutting assembly 2 and the pressing degree of the roller pressing assembly 3 to ensure that the equipment can adapt to the specifications of the support strips. Slowly put one end of the support strip into the feed end of the frame 1 so that the support strip enters between the roller pressing assemblies 3. When putting in the support strip, pay attention to maintaining the straightness of the support strip and avoid bending or twisting. Gently push the support strip so that it moves forward under the friction of the roller pressing assembly 3. Observe the movement of the support strip to ensure that it can move smoothly and steadily between the roller pressing assemblies 3. If there is any abnormality, such as the support strip getting stuck or the movement being unstable, the equipment should be stopped in time to check and troubleshoot.

[0043] After confirming that all components of the equipment are functioning properly and after loading, start the second motor 5 and the first motor 21 in sequence according to the operating procedures. Starting the second motor 5 will cause the traction component to start working and drive the support bar forward. After the support bar moves steadily, start the first motor 21 to make the saw blade 23 of the slitting component 2 start rotating. During the motor start-up process, closely observe the operation of the equipment, listen carefully to the sound of the motor and each component, and check for any abnormal vibrations or noises. If any abnormality is found, stop the equipment immediately for inspection and repair. After the support bar is slitting, it will be output from the discharge end of the frame 1. The operator should remove the slitting support bar from the discharge end in a timely manner to avoid the support bar accumulating at the discharge end and affecting the normal operation of the equipment. During the unloading process, handle the support bar gently to avoid secondary damage to the slitting support bar.

[0044] The insulating support strip slitting equipment provided in this embodiment, by setting two sets of slitting components 2, first spin-cuts the upper half of the support strip and then spin-cuts the lower half, effectively reduces the internal stress of the support strip and reduces the probability of the support strip breaking. The setting of the roller pressing component 3 prevents the support strip from warping longitudinally during the cutting process, ensuring the stability of the support strip. The dust removal component 4 can reduce the dust generated during the spin-cutting process and improve the working environment. The traction component realizes constant speed traction of the support strip and improves the slitting quality. The equipment has a reasonable structure, stable performance, and convenient operation, and can meet the slitting processing requirements of insulating support strips.

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A slitting device for insulating support strips, characterized in that: include The frame constitutes the basic support structure of the equipment; The slitting assembly is arranged in the upper processing area of ​​the frame, including an upper slitting assembly and a lower slitting assembly arranged at intervals. The upper slitting assembly is used to rotary cut the upper half of the support bar, and the lower slitting assembly is used to rotary cut the lower half of the support bar. Roller pressing assemblies are arranged at intervals on the upper part of the frame along the processing direction, located on both sides of the slitting assembly, and are used to press the support bars to prevent longitudinal warping; The dust collection assembly includes a liftable dust collection hood disposed outside the upper cutting assembly and a fixed dust collection hood disposed below the lower cutting assembly, for collecting cutting dust; The traction assembly, located at one end of the frame, includes a drive unit and a transmission mechanism, and is used to traction the support bars to move at a constant speed.

2. The slitting equipment for insulating support strips according to claim 1, characterized in that: The slitting assembly includes a shaft, multiple saw blades mounted on the shaft, and a partition cylinder for separating the saw blades. The shaft has a straight groove cross-section.

3. The slitting equipment for insulating support strips according to claim 2, characterized in that: The saw blade is provided with a through hole that matches the straight groove cross-section of the shaft.

4. The slitting equipment for insulating support strips according to claim 1, characterized in that: The rolling assembly includes: Hanging posts are fixed to the upper part of the frame. The bearing seat is pinned to the hanger and can swing longitudinally around it. The pressure roller is sleeved on one end of the shaft seat; The tensioner connects the frame and the shaft seat and is used to adjust the downward pressure of the pressure roller.

5. The slitting equipment for insulating support strips according to claim 4, characterized in that: The roller pressing assembly also includes a support roller disposed inside the frame and located below the pressing roller, the surface of which is higher than the processing plane of the frame.

6. The slitting equipment for insulating support strips according to claim 1, characterized in that: The liftable dust cover includes a cover body, a vertical guide rod, a pressure frame and a second spring, wherein the pressure frame abuts against the surface of the support bar through the second spring.

7. The slitting equipment for insulating support strips according to claim 1, characterized in that: The transmission mechanism of the traction assembly includes a belt drive mechanism and a universal joint that connect the drive unit and the roller pressing assembly shaft seat.

8. The slitting equipment for insulating support strips according to claim 7, characterized in that: The drive unit is a variable frequency speed control motor.

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