A board cutting device

Abstract

The application discloses a plate cutting device, and belongs to the field of plate cutting equipment.The plate cutting device comprises a frame body, a central shaft, a guide groove, a spacing sleeve, cutting blades, a limiting plate, a positioning column, a round steel sleeve, a partition plate and a fastening nut.The spacing sleeve can change the axial length, and when the cutting width needs to be adjusted, the axial length of the spacing sleeve is adjusted, the cutting blades are pushed to slide along the guide groove to change the distance between adjacent cutting blades, and all the cutting blades and the spacing sleeve do not need to be taken off from the central shaft one by one to be replaced, so that the problem that the cutting assembly needs to be disassembled and replaced in the prior art is solved, the replacement efficiency is improved, the distance between the cutting blades is adjusted on line, the replacement time is shortened, the labor intensity of the operator is reduced, the damage of the cutting blades caused by repeated disassembly and assembly is avoided, and the consistency of the cutting quality is improved.

Description

Technical Field

[0001] This application relates to the field of sheet metal cutting equipment, and in particular to a sheet metal cutting device. Background Technology

[0002] In the production of sheet metal, it is often necessary to cut a whole sheet into strips of a specified width to meet the needs of subsequent processing or finished product use. Sheet metal cutting equipment is the core equipment for this process. It uses multiple circular cutting blades arranged on a rotating shaft to continuously cut the sheet metal as it passes through. It has advantages such as high cutting efficiency and clean cuts, and is widely used in the processing of various sheet metal products, including wood, plastics, and thin metal sheets.

[0003] In existing technology, the cutting blades of sheet metal cutting devices are typically positioned using sleeves. Multiple cutting blades and sleeves are alternately mounted on a central shaft, and the axial length of the sleeve determines the distance between adjacent cutting blades, thereby controlling the width of the cut sheet metal strips. When producing sheet metal strips of different widths, the entire central shaft must first be disassembled from the frame. Then, all the cutting blades and sleeves on the central shaft must be removed one by one. After replacing the sleeves with the corresponding lengths according to the target width, the cutting blades and sleeves are reinstalled onto the central shaft in sequence. Finally, the central shaft is reinstalled back onto the frame.

[0004] The aforementioned existing technologies have the following drawbacks: First, the changeover and adjustment process is extremely cumbersome, requiring complete disassembly of the cutting components, which is time-consuming and labor-intensive, seriously affecting production efficiency. In particular, in scenarios of multi-specification small-batch production, frequent changeovers lead to a significant waste of non-production time. Second, repeated disassembly and assembly can easily cause damage to the cutting blade edge, shortening the tool's lifespan and increasing the labor intensity of operators.

[0005] Application content

[0006] The purpose of this application is to address the problems raised in the background art by designing a plate cutting device.

[0007] The technical solution of this application to achieve the above objectives is a plate cutting device, comprising a frame, a central shaft, a guide groove, spacer sleeves, cutting blades, a limiting plate, a positioning post, a round steel sleeve, a partition plate, and a fastening nut. The central shaft is rotatably mounted on the frame, and the central shaft has a guide groove. Multiple spacer sleeves and cutting blades are slidably mounted on the central shaft along the guide groove. The limiting plate is threadedly engaged with the central shaft. The spacer sleeves are used to change the spacing between two adjacent cutting blades.

[0008] The frame is equipped with positioning posts at the four corners by threads. Each positioning post is fitted with a round steel sleeve. The two partitions are located at the upper and lower ends of the round steel sleeves and pass through the positioning posts at the four corners. The fastening nuts are located on the uppermost partition and are screwed onto the positioning posts by threads.

[0009] Furthermore, the spacer sleeve includes a fixed sleeve, a rotating ring, a limiting sleeve, a wedge block, and a sliding ring. The fixed sleeve is slidably mounted on the central shaft along the guide groove. The rotating ring is rotatably mounted on the fixed sleeve. The limiting sleeve is fixed on the rotating ring. The wedge block is fixed on both sides of the rotating ring. The two sliding rings are located between the fixed sleeve and the limiting sleeve and are respectively disposed on both sides of the rotating ring. The sliding rings are slidably mounted on the fixed sleeve, and the sliding rings are in contact with the inclined surface of the wedge block.

[0010] Furthermore, the bottom of the frame is provided with a guide plate, which is fixed to the bottom of the inner side of the frame. The frame is provided with an opening and closing door, which is hinged to the side of the frame.

[0011] Furthermore, the partition is provided with reinforcing ribs, which are fixed to the uppermost partition.

[0012] Furthermore, the frame is provided with positioning holes, which are located at the four corners of the bottom of the frame.

[0013] Furthermore, the partition includes a pressure plate, a frame, and spacers. The positioning posts pass through the pressure plate and the frame respectively, and the multiple spacers are clamped between the pressure plate and the frame. The upper surface of the pressure plate is parallel to the upper surface of the frame.

[0014] Furthermore, the limiting sleeve is provided with protrusions, and a plurality of the protrusions are fixed on the surface of the limiting sleeve.

[0015] Furthermore, the sliding ring is provided with a scale, which is fixed on the sliding ring and the upper surface of the scale does not exceed the outer surface of the sliding ring.

[0016] Furthermore, the outermost diameter of the cutting blade extends beyond the upper surface of the uppermost partition.

[0017] In summary, this application provides a sheet metal cutting device with the following advantages: Through its structural design, this device utilizes a guide groove on the central shaft, with a spacer sleeve and cutting blades slidingly mounted along the guide groove. The spacer sleeve itself has an adjustable axial length. When adjusting the cutting width, only the axial length of the spacer sleeve needs to be adjusted, which pushes the cutting blades along the guide groove to change the spacing between adjacent cutting blades. This eliminates the need to remove and replace all cutting blades and spacer sleeves from the central shaft one by one, thus solving the problem of low efficiency in changing cutting specifications in existing technologies, which require complete disassembly of the cutting assembly. Compared with existing technologies, this application utilizes the axially adjustable spacer sleeve structure to achieve rapid online adjustment of the blade spacing, shortening the changeover adjustment time, reducing the labor intensity of operators, and avoiding damage to the cutting blades caused by repeated disassembly and assembly, thereby improving the consistency of cutting quality. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of Embodiment 1 described in this application;

[0019] Figure 2 This is a top view of the structure of Embodiment 1 described in this application;

[0020] Figure 3 This is a front structural diagram of Embodiment 1 described in this application;

[0021] Figure 4 This is a side view of Embodiment 1 described in this application;

[0022] Figure 5 This is as described in this application. Figure 4 A schematic diagram of the three-dimensional cross-sectional structure at point AA is shown.

[0023] Figure 6 This is a schematic diagram of the spacer sleeve described in this application;

[0024] Figure 7 This is an exploded structural diagram of the spacer sleeve described in this application;

[0025] Figure 8 This is a three-dimensional structural schematic diagram of Embodiment 2 described in this application;

[0026] Figure 9 This is a three-dimensional structural schematic diagram of the partition in Embodiment 2 of this application;

[0027] Figure 10 This is a schematic diagram of the three-dimensional cross-sectional structure of the partition in Embodiment 2 of this application;

[0028] Figure 11 This is a schematic diagram of the structure of the partition explosion in Embodiment 2 of this application.

[0029] In the diagram, 1. Frame; 2. Central shaft; 3. Guide groove; 4. Spacer sleeve; 5. Cutting blade; 6. Limiting plate; 7. Positioning post; 8. Round steel sleeve; 9. Partition plate; 10. Fastening nut; 11. Guide plate; 12. Opening and closing door; 13. Reinforcing rib; 14. Positioning hole; 15. Protrusion; 16. Scale; 401. Fixed sleeve; 402. Rotating ring; 403. Limiting sleeve; 404. Wedge block; 405. Sliding ring; 901. Pressure plate; 902. Frame; 903. Spacer strip. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The examples given are only for explaining this application and are not intended to limit the scope of this application.

[0031] In Embodiment 1 of this application, please refer to Figure 1-7 This application provides a technical solution: a plate cutting device, including a frame 1, a central shaft 2, a guide groove 3, spacer sleeves 4, cutting blades 5, a limiting plate 6, a positioning post 7, a round steel sleeve 8, a partition plate 9, and a fastening nut 10. The central shaft 2 is rotatably mounted on the frame 1. The central shaft 2 has a guide groove 3. Multiple spacer sleeves 4 and cutting blades 5 are slidably mounted on the central shaft 2 along the guide grooves 3. The limiting plate 6 is threadedly mounted on the central shaft 2. The spacer sleeves 4 are used to change the distance between two adjacent cutting blades 5.

[0032] Positioning posts 7 are installed at the four corners of the frame 1 by threads. A round steel sleeve 8 is fitted on each positioning post 7. Two partitions 9 are located at the upper and lower ends of the round steel sleeve 8 respectively and pass through the positioning posts 7 at the four corners. Fastening nuts 10 are located on the uppermost partition 9 and are screwed onto the positioning posts 7 by threads.

[0033] In this embodiment, the spacer sleeve 4 includes a fixed sleeve 401, a rotating ring 402, a limiting sleeve 403, a wedge block 404, and a sliding ring 405. The fixed sleeve 401 is slidably mounted on the central shaft 2 along the guide groove 3. The rotating ring 402 is rotatably mounted on the fixed sleeve 401. The limiting sleeve 403 is fixed on the rotating ring 402. The wedge block 404 is fixed on both sides of the rotating ring 402. Two sliding rings 405 are located between the fixed sleeve 401 and the limiting sleeve 403 and are respectively disposed on both sides of the rotating ring 402. The sliding rings 405 are slidably mounted on the fixed sleeve 401, and the sliding rings 405 are in contact with the inclined surface of the wedge block 404.

[0034] In this embodiment, a guide plate 11 is provided at the bottom of the frame 1, and the guide plate 11 is fixed to the bottom inner side of the frame 1. An opening and closing door 12 is provided on the frame 1, and the opening and closing door 12 is hinged to the side of the frame 1. The guide plate 11 allows for the centralized collection and discharge of debris, preventing debris from accumulating inside the frame 1 and affecting cutting operations, thus improving the continuous working capacity of the device. When it is necessary to clean the inside of the frame 1 or perform maintenance, the opening and closing door 12 on the side of the frame 1 can be opened, allowing operators to easily reach inside the frame 1 for cleaning or repair. The opening and closing door 12 makes daily maintenance and troubleshooting more convenient, allowing access to the inside of the frame 1 without disassembling other components, thus improving the maintainability of the device.

[0035] In this embodiment, the partition 9 is provided with reinforcing ribs 13, which are fixed to the uppermost partition 9. This improves the structural rigidity of the partition 9, prevents the partition 9 from deforming under stress during the plate cutting process, thus ensuring the stability of the cutting quality.

[0036] In this embodiment, the frame 1 is provided with positioning holes 14, which are located at the four corners of the bottom of the frame 1. The positioning holes 14 at the four corners of the bottom of the frame 1 are used to fix the entire cutting device to the corresponding workstation of the production line, ensuring the accuracy of the installation position and the stability of the device operation, and preventing the device from shifting during the cutting process.

[0037] In this embodiment, the limiting sleeve 403 is provided with protrusions 15, and multiple protrusions 15 are fixed on the surface of the limiting sleeve 403. The protrusions 15 on the surface of the limiting sleeve 403 increase the friction between the hand and the limiting sleeve 403, making it easier to apply force and rotate, allowing the operator to adjust the length of the spacer sleeve 4 more easily, and improving the convenience and feel of the adjustment operation.

[0038] In this embodiment, a scale 16 is provided on the sliding ring 405. The scale 16 is fixed on the sliding ring 405, and its upper surface does not exceed the outer surface of the sliding ring 405. By observing the scale 16 on the sliding ring 405, the current length of the spacer sleeve 4 can be accurately read, thereby precisely controlling the spacing adjustment of the cutting blades 5 and ensuring adjustment accuracy. The fact that the upper surface of the scale 16 does not exceed the outer surface of the sliding ring 405 prevents the scale 16 from protruding and scraping other components, ensuring the safety and reliability of the device operation.

[0039] In this embodiment, the outermost diameter of the cutting blade 5 extends beyond the upper surface of the uppermost partition 9. This ensures that the cutting blade 5 can fully contact and cut through the material, guaranteeing the integrity and reliability of the cut and preventing the material from being completely cut.

[0040] In the implementation scheme of this embodiment one: when it is necessary to cut the board, the frame 1 needs to be installed on the production line in advance. The positioning holes 14 at the four corners of the bottom of the frame 1 are used to fix the entire cutting device to the corresponding work station of the production line, so as to ensure the accuracy of the installation position and the stability of the device operation, and prevent the device from shifting during the cutting process.

[0041] During production, the sheet material to be cut is first fed into the frame 1 from one side. As the sheet material passes through the space between the upper and lower partitions 9, the central shaft 2 rotates under the drive of an external drive device. The cutting blade 5 mounted on the central shaft 2 rotates together with the central shaft 2. The upper part of the cutting blade 5 passes through the elongated hole on the upper partition 9 and then contacts the sheet material, thereby cutting the sheet material into multiple strips of uniform width along the feed direction. The outermost diameter of the cutting blade 5 exceeds the upper surface of the uppermost partition 9, ensuring that the cutting blade 5 can fully contact and cut through the sheet material, guaranteeing the integrity and reliability of the cut, and avoiding the situation where the sheet material cannot be cut through. The reinforcing ribs 13 provided on the uppermost partition 9 improve the structural rigidity of the partition 9, preventing the partition 9 from deforming under stress during the sheet material cutting process, which would affect the cutting accuracy and ensure the stability of the cutting quality.

[0042] During the cutting process, debris falls downwards and is guided by the guide plate 11 at the bottom of the frame 1 before being discharged from the bottom of the frame 1, keeping the cutting area clean. The guide plate 11 allows for the centralized collection and discharge of debris, preventing debris from accumulating inside the frame 1 and affecting the cutting operation, thus improving the continuous working capacity of the device. When it is necessary to clean the inside of the frame 1 or perform maintenance, the opening door 12 on the side of the frame 1 can be opened, allowing operators to easily reach inside the frame 1 for cleaning or maintenance. The opening door 12 makes daily maintenance and troubleshooting more convenient, allowing access to the inside of the frame 1 without disassembling other parts, thus improving the maintainability of the device.

[0043] When it is necessary to adjust the cutting width or change the spacing between adjacent cutting blades 5, remove the central shaft 2. First, loosen the limiting plate 6 at the end of the central shaft 2 so that the cutting blades 5 and the spacer sleeves 4 can slide freely. Then, for each spacer sleeve 4, rotate the limiting sleeve 403 to drive the rotating ring 402 to rotate together on the fixed sleeve 401. The protrusions 15 on the surface of the limiting sleeve 403 increase the friction between the hand and the limiting sleeve 403, making it easier to apply force for rotation. This allows the operator to adjust the length of the spacer sleeve 4 more easily, improving the convenience and feel of the adjustment operation. The rotating ring 402 rotates on the fixed sleeve 401, causing the wedge blocks 404 on both sides of the rotating ring 402 to rotate synchronously with the rotating ring 402. Since the sliding ring 405 is in contact with the inclined surface of the wedge block 404, the rotation of the wedge block 404 will push the sliding ring 405 on both sides to slide outward along the axial direction of the fixed sleeve 401 through the inclined surface, thereby increasing the total axial length of the entire spacer sleeve 4. When the limiting sleeve 403 is rotated in the opposite direction, the wedge block 404 rotates in the opposite direction, and the sliding ring 405 retracts inward along the axial direction under the pushing of the adjacent cutting blades 5, thereby decreasing the total axial length of the spacer sleeve 4. While the length of the spacer sleeve 4 changes, it drives the adjacent cutting blades 5 to slide along the guide groove 3 on the central shaft 2, thereby changing the distance between the adjacent cutting blades 5. After all the spacer sleeves 4 have been adjusted, the limiting plates 6 at both ends of the central shaft 2 are tightened again to axially press and fix all the cutting blades 5 and the spacer sleeves 4, thus completing the change of cutting width adjustment. During the adjustment of the length of the spacer sleeve 4, the current length of the spacer sleeve 4 can be accurately read by observing the scale 16 on the sliding ring 405, thereby precisely controlling the spacing adjustment of the cutting blades 5 and ensuring adjustment accuracy. The upper surface of the scale 16 does not exceed the outer surface of the sliding ring 405, preventing the scale 16 from protruding and scraping other components, thus ensuring the safety and reliability of the device operation.

[0044] In the second embodiment of this application, please refer to Figure 8-11 The difference from Embodiment 1 is that in this embodiment, the partition 9 includes a pressure plate 901, a frame 902, and partition strips 903. The positioning posts 7 pass through the pressure plate 901 and the frame 902 respectively. Multiple partition strips 903 are clamped between the pressure plate 901 and the frame 902. The upper surface of the pressure plate 901 is parallel to the upper surface of the frame 902.

[0045] In the implementation scheme of this second embodiment: The difference between this embodiment and the first embodiment is that the partition 9 is composed of a pressure plate 901, a frame 902, and spacers 903, rather than an integral steel plate. Multiple spacers 903 are clamped between the pressure plate 901 and the frame 902. The gap between the spacers 903 forms a groove for the cutting blade 5 to pass through. The upper surface of the pressure plate 901 is parallel to the upper surface of the frame 902 to ensure the flatness of the plate when it passes through. When it is necessary to adjust the cutting width, while adjusting the length of the spacer sleeve 4 to change the spacing of the cutting blade 5, it is also necessary to adjust the spacing of the spacers 903 on the partition 9 accordingly. The specific operation process is as follows: First, loosen the fastening nut 10 on the positioning post 7 so that the pressure plate 901 releases the clamping force on the spacers 903. Then, according to the new position of the cutting blade 5 after adjustment, slide each spacer 903 along the frame 902 one by one so that the gap between the spacers 903 is aligned with the corresponding cutting blade 5. Excess or missing spacers 903 can be added or removed. After adjustment, tighten the fastening nut 10 again, and press the pressure plate 901 downward to press all the spacers 903 onto the frame 902, thereby completing the synchronous adjustment of the spacing between the slots of the spacers 9.

[0046] The partition 9 structure, which combines pressure plate 901, frame 902 and spacer 903, allows the spacing of the slots on the partition 9 through which the cutting blade 5 passes to be adjusted according to the change of blade spacing. This eliminates the need to replace the entire partition 9 of different specifications, further improving the convenience and efficiency of changeover adjustment, while reducing the number of spare parts and costs.

[0047] The foregoing has provided a detailed description of one embodiment of this application, but the description is merely a preferred embodiment and should not be construed as limiting the scope of this application. All equivalent variations and improvements made within the scope of this application should still fall within the patent coverage of this application.

Claims

1. A sheet metal cutting device, comprising a frame (1), a central shaft (2), a guide groove (3), a spacer sleeve (4), a cutting blade (5), a limiting plate (6), a positioning post (7), a round steel sleeve (8), a partition plate (9), and a fastening nut (10), characterized in that, A central shaft (2) is rotatably mounted on the frame (1). A guide groove (3) is opened on the central shaft (2). Multiple spacer sleeves (4) and cutting blades (5) are slidably mounted on the central shaft (2) along the guide groove (3). The limiting plate (6) is threadedly mounted on the central shaft (2). The spacer sleeves (4) are used to change the distance between two adjacent cutting blades (5). The frame (1) has positioning posts (7) installed at the four corners by threads. Each positioning post (7) is fitted with a round steel sleeve (8). The two partitions (9) are located at the upper and lower ends of the round steel sleeve (8) and pass through the positioning posts (7) at the four corners. The fastening nut (10) is located on the uppermost partition (9) and is screwed onto the positioning post (7) by threads.

2. The plate cutting device according to claim 1, characterized in that, The spacer sleeve (4) includes a fixed sleeve (401), a rotating ring (402), a limiting sleeve (403), a wedge block (404), and a sliding ring (405). The fixed sleeve (401) is slidably mounted on the central shaft (2) along the guide groove (3). The rotating ring (402) is rotatably mounted on the fixed sleeve (401). The limiting sleeve (403) is fixed on the rotating ring (402). The wedge block (404) is fixed on both sides of the rotating ring (402). The two sliding rings (405) are located between the fixed sleeve (401) and the limiting sleeve (403) and are respectively set on both sides of the rotating ring (402). The sliding ring (405) is slidably mounted on the fixed sleeve (401), and the inclined surface of the sliding ring (405) is in contact with the wedge block (404).

3. The plate cutting device according to claim 1, characterized in that, The bottom of the frame (1) is provided with a guide plate (11), which is fixed to the bottom of the inner side of the frame (1). The frame (1) is provided with an opening and closing door (12), which is hinged to the side of the frame (1).

4. The plate cutting device according to claim 1, characterized in that, The partition (9) is provided with reinforcing ribs (13), which are fixed on the uppermost partition (9).

5. The plate cutting device according to claim 1, characterized in that, The frame (1) is provided with positioning holes (14), which are located at the four corners of the bottom of the frame (1).

6. The plate cutting device according to claim 1, characterized in that, The partition (9) includes a pressure plate (901), a frame (902), and partition strips (903). The positioning posts (7) pass through the pressure plate (901) and the frame (902) respectively. Multiple partition strips (903) are clamped between the pressure plate (901) and the frame (902). The upper surface of the pressure plate (901) is parallel to the upper surface of the frame (902).

7. A plate cutting device according to claim 2, characterized in that, The limiting sleeve (403) is provided with protrusions (15), and a plurality of protrusions (15) are fixed on the surface of the limiting sleeve (403).

8. A plate cutting device according to claim 2, characterized in that, The sliding ring (405) is provided with a scale (16), which is fixed on the sliding ring (405) and the upper surface of the scale (16) does not exceed the outer surface of the sliding ring (405).

9. A plate cutting device according to claim 1, characterized in that, The outermost diameter of the cutting blade (5) extends beyond the upper surface of the uppermost partition (9).

Images