Adjustable slitting knife rest of slitting machine
By designing an adjustable slitting blade holder, using a servo motor to drive a gear and rack structure to adjust the blade spacing, and adjusting the screw to raise and lower the blade, the problem of non-adjustable blade spacing in existing technologies is solved, improving the flexibility and ease of operation of the slitting machine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-03-17
AI Technical Summary
The blade holder of the existing slitting machine cannot flexibly adjust the blade spacing, making it difficult to adapt to slitting operations of different widths and causing inconvenience in use.
An adjustable slitting knife holder was designed. A servo motor drives a gear and rack structure to adjust the distance between the collar and the slitting mechanism. The lifting and lowering of the cutter and its protection are achieved by adjusting the screw.
It enables flexible adjustment of the cutting blade spacing, facilitating slitting operations of different widths. Furthermore, the cutting blades can be raised and lowered within the protective chamber, improving the slitting machine's flexibility and ease of operation.
Smart Images

Figure CN223997429U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of slitting machine technology, specifically relating to an adjustable slitting knife holder for a slitting machine. Background Technology
[0002] A slitting machine is a device that longitudinally cuts strip material into strips of several required specifications. A cutting structure is set between the unwinding and winding to cut the strip material, realizing the slitting work from wide rolls to narrow rolls. The base is welded from shaped steel and steel plates, so an adjustable slitting knife holder for the slitting machine needs to be designed.
[0003] For example, Chinese utility model patent CN207171084U, entitled "A Slitting Machine Blade Holder," includes a frame, a drive shaft, a driven shaft, an upper slitting blade, a lower slitting blade, and a gap adjustment mechanism. Sliding blocks are mounted on both sides of the frame, and the drive shaft and driven shaft pass through these blocks. The upper and lower slitting blades are mounted on the drive shaft and driven shaft, respectively. The gap adjustment mechanism is located at both ends of the frame, with its lower end connected to the sliding blocks. Although this prior art adjusts the gap between the upper and lower slitting blades by adjusting the position of the sliding blocks through the gap adjustment mechanism, thus adapting to materials of various thicknesses, the blades installed inside the blade holder in this prior art lack a gap adjustment function. This results in the distance between multiple blades being equal and unadjustable, making it difficult to achieve slitting operations of different widths according to specific operational needs. This leads to insufficient flexibility in the adjustment of the slitting machine, causing inconvenience in its later adjustment and use. Utility Model Content
[0004] The purpose of this utility model is to provide an adjustable slitting knife holder for a slitting machine that has a simple structure and reasonable design in order to solve the above problems.
[0005] This utility model achieves the above objectives through the following technical solutions:
[0006] An adjustable slitting knife holder for a slitting machine includes a U-shaped mounting frame. A limit rod is fixed to the bottom of the inner side of the U-shaped mounting frame. A fixing block is installed at the middle position of the outer side of the limit rod. Two collars are slidably sleeved on both sides of the middle position of the limit rod. One collar is slidably sleeved on both sides of the limit rod. Slitting mechanisms are installed at the bottom of the two sets of one collars and the bottom of the two sets of two collars, as well as at the bottom of the fixing block. A second drive assembly that cooperates with the two collars is installed on the top of the fixing block. A first drive assembly that cooperates with the one collar is installed at the middle position of the top of the U-shaped mounting frame.
[0007] As a further optimization of this utility model, the slitting mechanism includes an L-shaped fixing frame installed on the bottom of two sets of collar one and two sets of collar two and the fixing block. A protective chamber is installed on the bottom of one side of the L-shaped fixing frame. An adjusting screw is threadedly fitted at the middle position of the top of the protective chamber. A U-shaped mounting plate is rotatably installed on the bottom of the adjusting screw, and the U-shaped mounting plate is in contact with the inner side of the protective chamber. A cutter is fixed on the inner bottom of the U-shaped mounting plate.
[0008] As a further optimization of this utility model, the drive assembly includes a servo motor installed at the top center of the U-shaped mounting bracket. The drive assembly also includes a fixing rod installed at the top back end of one set of collars and the top front end of another set of collars. A rack is installed on the top of the two sets of fixing rods on the side closest to each other, and the two sets of racks are placed at both ends outside the gear and mesh with it.
[0009] As a further optimization of this utility model, the second drive assembly includes a second servo motor installed at the middle position of the top of the fixed block. The second drive assembly also includes a second fixing rod installed at one end of the back of the top of a set of second collars and one end of the front of the top of another set of second collars. The top of the two sets of second fixing rods are both equipped with racks, and the two sets of racks are placed at both ends outside the gear and mesh with it.
[0010] As a further optimization of this utility model, both ends of the cutter are provided with internal threaded holes, and the internal threads of the internal threaded holes are provided with fixing screws that extend to the outside of the U-shaped mounting plate.
[0011] As a further optimization of this utility model, the bottom of each of the multiple sets of protective compartments on the side away from the L-shaped fixing frame is provided with an opening groove, and the opening groove is connected to the inside and outside of the protective compartment.
[0012] The beneficial effects of this utility model are as follows:
[0013] 1. This utility model, through the structural design of drive component one and drive component two, respectively cooperates with collar one and collar two. Finally, through the design of the slitting mechanism, the operator can easily adjust collar one and collar two by driving drive component one and drive component two. This allows collar one and collar two to drive the slitting mechanism to adjust and move away, so that the distance between multiple slitting mechanisms can be adjusted later, which is convenient for subsequent slitting operations of different widths.
[0014] 2. The slitting mechanism of this utility model allows operators to easily rotate the adjusting screw to raise and lower the cutter, enabling the cutter to extend and retract inside the protective chamber, which in turn protects the cutter when not in use. Attached Figure Description
[0015] Figure 1 This is a front sectional view of the present invention;
[0016] Figure 2 This is the front view of this utility model;
[0017] Figure 3 This is a three-dimensional structural diagram of the slitting mechanism of this utility model;
[0018] Figure 4 This is a three-dimensional structural diagram of the drive component of this utility model;
[0019] Figure 5 This is a three-dimensional structural diagram of the second drive component of this utility model;
[0020] Figure 6 This is a utility model Figure 1 Enlarged view of point A in the middle.
[0021] In the diagram: 1. U-shaped mounting bracket; 2. Drive assembly one; 200. Fixing rod one; 201. Rack one; 202. Servo motor one; 203. Gear one; 3. Drive assembly two; 300. Gear two; 301. Rack two; 302. Servo motor two; 303. Fixing rod two; 4. Limiting rod; 5. Collar one; 6. Slitting mechanism; 600. L-shaped fixing bracket; 601. Protective chamber; 602. Cutter; 603. U-shaped mounting plate; 604. Adjusting screw; 7. Fixing block; 8. Collar two. Detailed Implementation
[0022] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.
[0023] Example 1
[0024] like Figure 1 , Figure 2 As shown, an adjustable slitting knife holder for a slitting machine includes a U-shaped mounting frame 1. A limiting rod 4 is installed at the bottom of the inner side of the U-shaped mounting frame 1. The top of the limiting rod 4 is evenly provided with scale lines, and the scale lines cooperate with collar 1 5 and collar 2 8. A fixing block 7 is installed at the middle position of the outer side of the limiting rod 4. The fixing block 7 can realize the positioning and centering function of the slitting knife holder. Collar 2 8 is slidably sleeved on both sides of the middle position of the limiting rod 4, and collar 1 5 is slidably sleeved on both sides of the limiting rod 4. A slitting mechanism 6 is installed at the bottom of the two sets of collar 1 5 and the bottom of the two sets of collar 2 8 and the bottom of the fixing block 7. The slitting mechanism 6 can facilitate the slitting operation in the later stage.
[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 6 As shown, the slitting mechanism 6 includes an L-shaped fixing frame 600 installed at the bottom of two sets of collar 1 5 and two sets of collar 2 8 and the fixing block 7. The structural design of the L-shaped fixing frame 600 facilitates the later fixed installation of the protective chamber 601 and the above components, and also facilitates the later rotation and upward movement of the adjusting screw 604. The protective chamber 601 is installed at the bottom of one side of the L-shaped fixing frame 600. The bottom of the multiple protective chambers 601 on the side away from the L-shaped fixing frame 600 is provided with an opening groove, and the opening groove is connected to the inside and outside of the protective chamber 601. The design of the opening groove allows the operator to easily disassemble and replace the cutter 602. The adjusting screw 604 is threaded at the middle position of the top of the protective chamber 601, which allows the operator to adjust the cutting by adjusting the screw 604. The blade 602 moves up or down inside the protective chamber 601. A U-shaped mounting plate 603 is rotatably mounted on the bottom of the adjusting screw 604, and the U-shaped mounting plate 603 fits against the inner side of the protective chamber 601. The design of the U-shaped mounting plate 603 facilitates the fixed installation of the blade 602. At the same time, its fit against the inner side of the protective chamber 601 also facilitates its positioning. It rotates with the adjusting screw 604 later. The blade 602 is fixed to the inner bottom of the U-shaped mounting plate 603. The design of the blade 602 facilitates slitting operations. Both ends of the blade 602 have internal threaded holes, and the internal threads of the internal threaded holes are connected to fixing screws that extend from the U-shaped mounting plate 603 to its outside, facilitating the fixed installation of the blade 602.
[0026] like Figure 1 , Figure 2 , Figure 5 As shown, a drive assembly 3 that cooperates with the collar 8 is installed on the top of the fixed block 7. The drive assembly 3 includes a servo motor 302 installed at the middle position of the top of the fixed block 7. The servo motor 302 can drive the gear 300. The drive assembly 3 also includes a fixing rod 303 installed at one end of the back of the top of one set of collars 8 and one end of the front of the top of another set of collars 8. The fixing rod 303 can fix the rack 301. The top of the two sets of fixing rods 303 are both mounted on the side close to each other. The two sets of racks 301 are placed at both ends outside the gear 300 and mesh with it. Through the meshing operation of the racks 301 and the gear 300, the gear 300 can drive the two sets of racks 301 away when it rotates, thereby realizing the adjustment of the collar 8 driving the slitting mechanism 6 away.
[0027] like Figure 1 , Figure 2 , Figure 4 As shown, a drive assembly 2 that cooperates with collar 5 is installed at the middle position of the top of the U-shaped mounting bracket 1. The drive assembly 2 includes a servo motor 202 installed at the middle position of the top of the U-shaped mounting bracket 1. The servo motor 202 can drive the gear 203. The drive assembly 2 also includes a fixing rod 200 installed at one end of the back of the top of one set of collars 5 and one end of the front of the top of another set of collars 5. The fixing rod 200 can fix the rack 201. The top of the two sets of fixing rods 200 on the side close to each other is equipped with racks 201. The two sets of racks 201 are placed at both ends outside the gear 203 and mesh with it. Through the meshing design of racks 201 and gears 203, when the gear 203 rotates, it can drive the two sets of racks 201 to move the collar 5 and the slitting mechanism 6 away from the outside of the limit rod 4, thereby realizing the function of adjusting the spacing of the slitting mechanism 6.
[0028] It should be noted that, in the case of this adjustable slitting knife holder of the slitting machine, the operator can directly install the U-shaped mounting bracket 1 and above to the designated position. Later, when it is necessary to adjust the spacing of the slitting mechanism 6 to facilitate slitting operations of different widths, the operator can first drive the servo motor 202 to rotate the gear 203. Then, through the meshing design of the two sets of racks 201 and the two ends of the gear 203, the rotation of the gear 203 can drive the two sets of racks 201 to move away from each other. Then, through the connection design of the fixed rod 200 and the collar 5, the collar 5 can be driven to move away from the limit rod 4 to the designated position. The scale line on the top of the limit rod 4 allows the operator to easily record and observe the displacement distance of the collar 5.
[0029] After the first collar 5 has moved, the second gear 300 can be driven to rotate by the second servo motor 302. Then, through the meshing design of the two sets of racks 301 and the two ends of the second gear 300, the rotation of the second gear 300 can drive the two sets of racks 301 to move away from each other. Then, through the connection design between the second fixed rod 303 and the second collar 8, the second collar 8 can be driven to move away to the designated position outside the limit rod 4. At this time, through the design of the first collar 5 and the second collar 8 driving the slitting mechanism 6 to move away, the function of adjusting the spacing between multiple slitting mechanisms 6 can be easily realized, so as to facilitate the subsequent slitting operation of different widths.
[0030] When not in use, rotating the adjusting screw 604 will move the cutter 602 upwards into the protective chamber 601 via the U-shaped mounting plate 603. The protective chamber 601 will then protect the cutter 602. Later, rotating the adjusting screw 604 in the opposite direction will allow the cutter 602 to be moved downwards and removed, facilitating slitting operations.
[0031] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.
Claims
1. An adjustable slitting knife holder for a slitter comprising a U-shaped mounting frame (1), characterized in that, The bottom of the inner side of the U-shaped mounting frame (1) is fixed with a limiting rod (4), a fixed block (7) is installed at the middle position of the outer side of the limiting rod (4), a sleeve ring two (8) is slidably sleeved on both sides of the middle position of the limiting rod (4), a sleeve ring one (5) is slidably sleeved on both sides of the limiting rod (4), a striping mechanism (6) is installed at the bottom of the two groups of sleeve ring one (5) and the two groups of sleeve ring two (8) and the bottom of the fixed block (7), a driving assembly two (3) cooperating with the sleeve ring two (8) is installed at the top of the fixed block (7), and a driving assembly one (2) cooperating with the sleeve ring one (5) is installed at the middle position of the inner top of the U-shaped mounting frame (1).
2. The adjustable slitting knife holder of claim 1, wherein: The striping mechanism (6) comprises an L-shaped fixing frame (600) installed at the bottom of the two groups of sleeve ring one (5) and the two groups of sleeve ring two (8) and the fixed block (7), a protective bin (601) is installed at the bottom of one side of the L-shaped fixing frame (600), a adjusting screw (604) is threadedly sleeved at the middle position of the inner top of the protective bin (601), a U-shaped mounting plate (603) is rotatably installed at the bottom of the adjusting screw (604), the U-shaped mounting plate (603) is attached to the inner side of the protective bin (601), and a cutter (602) is fixed to the inner bottom of the U-shaped mounting plate (603).
3. The adjustable slitting knife holder of claim 1, wherein: The driving assembly one (2) comprises a servo motor one (202) installed at the middle position of the inner top of the U-shaped mounting frame (1), the driving assembly one (2) further comprises a fixed rod one (200) installed at one end of the top back of one group of sleeve ring one (5) and one end of the top front of the other group of sleeve ring one (5), a rack one (201) is installed at the top of the close side of the two groups of fixed rod one (200), and the two groups of rack one (201) are arranged at the two ends of the outer side of a gear one (203) and engaged with the gear one (203).
4. The adjustable slitting knife holder of claim 1 wherein: The driving assembly two (3) comprises a servo motor two (302) installed at the middle position of the top of the fixed block (7), the driving assembly two (3) further comprises a fixed rod two (303) installed at one end of the top back of one group of sleeve ring two (8) and one end of the top front of the other group of sleeve ring two (8), a rack two (301) is installed at the top of the close side of the two groups of fixed rod two (303), and the two groups of rack two (301) are arranged at the two ends of the outer side of a gear two (300) and engaged with the gear two (300).
5. The adjustable slitting knife holder of claim 2 wherein: Threaded holes are formed at both ends of the cutter (602), and the inner threads of the threaded holes are penetrated by fixed screws extending to the outside of the U-shaped mounting plate (603).
6. The adjustable slitting knife holder of claim 2 wherein: Open grooves are formed at the bottom of the far side of the protective bin (601) away from the L-shaped fixing frame (600), and the open grooves are in communication with the inside and outside of the protective bin (601).
Citation Information
Patent Citations
Divide strip machine knife frame
CN207171084U