Fine adjustment slitting knife rest

Abstract

The utility model discloses a fine adjustment slitting knife rest. The slitting tool rest comprises a tool apron, a nut knob, a small rod, an adjustable fastening handle, a connecting frame, a handle, a tool sliding block and a blade with edges. The tool apron provides a supporting point, the small rod penetrates through the tool apron and is in sliding connection, one end of the small rod is connected with the connecting frame, the other end of the small rod is connected with the nut knob, the nut knob is rotated to control the connecting frame to slide, and the adjustable fastening handle can limit the small rod. The cutter sliding block is arranged in a sliding groove in the front end of the connecting frame, the edge blade is fixed in the middle, and the cutter sliding block can be controlled to slide by rotating the handle. The knife rest is designed to adjust the position of the knife at multiple positions, so that materials can be better cut, and the service life of the knife is effectively prolonged.

Description

Technical Field

[0001] This utility model relates to a fine-tuning slitting blade holder, and more particularly to a fine-tuning slitting blade holder for cutting soft film materials. Background Technology

[0002] A slitting cutter is a mechanical component that cuts wide materials into multiple narrow strips. It is mainly used for slitting various thin film materials, and is especially suitable for slitting soft materials. For example, the cutter structure disclosed in the utility model patent with patent number CN202322287805.6 has an overly complex cutter holder, which is inconvenient to operate. The cutter is prone to wear and frequent replacement, which affects production efficiency. There is an urgent need for a micro-adjustable slitting cutter holder with a simple structure, convenient operation, and long service life. Summary of the Invention

[0003] The purpose of this utility model is to overcome the defects in the existing technology and provide a fine-tuning slitting tool holder. The overall external structure of this tool holder is relatively simple, and only a few parts are needed to fully limit the displacement of the tool. Furthermore, without affecting production, some parts of the structure can be adjusted to position the unworn cutting edge to cut the material, thereby improving the utilization rate of the tool.

[0004] To achieve the above objectives, the technical solution of this utility model is: a fine-tuning slitting blade holder, characterized in that: the slitting blade holder includes a blade holder, a pressure plate, a nut knob, a small rod, an adjustable tightening handle, a connecting frame, and a blade with an edge;

[0005] The tool holder is provided with a small rod sliding hole, the small rod is slidably connected to the small rod sliding hole, one end of the small rod is threadedly connected to a nut knob, and the other end is connected to a connecting frame; the edged blade is provided on the connecting frame;

[0006] The pressure plate is fixedly connected to the tool holder. The inner end of the nut knob is provided with an annular groove and a limiting protrusion in sequence. The pressure plate is provided with a U-shaped protrusion that rotates in conjunction with the annular groove. A protrusion cavity is reserved between the U-shaped protrusion and the surface of the tool holder. The limiting protrusion is installed in conjunction with the protrusion cavity.

[0007] The adjustable clamping handle has a limiting section that extends through the inside of the tool holder. The tool holder has a threaded hole for connecting the limiting section, and the threaded hole communicates with the sliding hole of the small rod. The small rod has an axial groove in the middle, and the front end of the limiting section extends into the groove and slides with the inner wall of the groove or locks with the bottom of the groove.

[0008] This design allows for easy fine-tuning of the cutting tool during production. The adjustable locking handle, in conjunction with the groove in the lever, guides the lead screw drive and locks the tool holder to the lever position. This improves the operability of fine-tuning the tool and also increases tool utilization.

[0009] Preferably, the length of the groove in the small rod is between 3cm and 6cm. This design optimizes the lateral movement range of the tool.

[0010] Preferably, the rod includes a thicker end passing through the tool holder and a thinner end farther from the tool holder; the connecting frame is rotatably connected to the thinner end of the rod, and a limiting surface of the connecting frame is provided at the connection position between the thicker and thinner ends of the rod, so that the connecting frame contacts and limits contact during installation; the connecting frame is provided with a triangular screw, the inner end of which passes through the connecting frame and engages with the thinner end of the rod to lock the connecting frame. This design allows for better installation of the connecting frame on the rod and enables adjustment of the cutting angle of the tool.

[0011] Preferably, the connecting frame has a tool slide groove in the middle of its front end, and a tool slider is slidably connected inside the tool slide groove; the connecting frame is also provided with a straight-lined handle, the inner end of which passes through the connecting frame and cooperates with the tool slider to lock the tool slider.

[0012] An adjusting screw is provided in the tool slide groove. One end of the adjusting screw is threaded to the tool slider, and the other end passes through the connecting frame and is fixedly connected to the handle. A screw protrusion is provided in the middle of the adjusting screw. When the adjusting screw is inserted into the connecting frame, the screw protrusion and the connecting frame cooperate to limit the adjusting screw. Rotating the handle can drive the adjusting screw, thereby driving the tool slider to move axially along the adjusting screw.

[0013] This design improves the tool's lifespan by changing the cutting position of the edge blade and the film material through the movement of the tool slider.

[0014] Preferably, the tool slider has a slider groove in the middle, and a set screw is provided on the tool slider. The inner end of the set screw penetrates the side wall of the tool slider and engages with the slider groove to fix the edged blade. With this design, the edged blade is fixed to the tool slider, and by engaging the set screw with different positions on the edge of the edged blade, a small range of rotational adjustment of the edged blade can be achieved.

[0015] Preferably, a pressure block is fitted around the edge of the blade, and a blade receiving groove is provided at the bottom of the pressure block. This design restricts the feeding position of the film material, allowing the edge blade to better contact and cut the material.

[0016] The advantages and beneficial effects of this utility model are as follows: Through this design, not only is there a lot of stabilization design on the blade holder itself, which fully prevents the blade from shifting when cutting materials and affecting the yield of finished products; it is also easy to operate. The left, right and front and back positions of the blade can be adjusted by simply turning two knobs, and the adjustment can be completed by simply tightening two handles, making the entire slitting blade holder simple and easy to use; at the same time, the contact point between the blade edge and the material can also be easily controlled, so that the blade is fully utilized and there is no need to frequently replace the blade. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the connection structure between the tool holder 1 and the worktable B of this utility model;

[0018] Figure 2 This is a schematic diagram of the connection structure between the tool holder 1 and the worktable B of this utility model (another perspective);

[0019] Figure 3 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 4 This is a schematic diagram showing the installation of the two ends of the small rod 4 in this utility model.

[0021] Figure 5 This is a schematic diagram showing the cooperation between the pressure plate 2 and the knife holder 1 in this utility model;

[0022] Figure 6 This is a schematic diagram showing the cooperation between the pressure plate 2 and the nut knob 3 in this utility model;

[0023] Figure 7 This is a schematic diagram of the connecting frame 6 in this utility model;

[0024] Figure 8 This is a schematic diagram showing the connection between the adjusting screw 8 and the handle 7 in this utility model;

[0025] Figure 9 This is a schematic diagram of the separation structure of the small rod 4 and the connecting frame 6 of this utility model;

[0026] Figure 10 This is a schematic diagram of the separation structure of the small rod 4 and the tool holder 1 of this utility model.

[0027] In the diagram: 1. Tool holder; 1-1. Sliding hole of small rod; 1-2. Threaded hole of tool holder; 2. Pressure plate; 2-1. U-shaped protrusion ring; 2-2. Cavity of protrusion ring; 3. Nut knob; 3-1. Annular groove; 3-2. Limiting protrusion ring; 4. Small rod; 4-1. Groove of small rod; 4-2. Coarse end; 4-3. Fine end; 4-4. Limiting surface of connecting frame; 5. Adjustable set handle; 5-1. Limiting section; 6. Connecting frame; 6-1. Tool slide groove; 7. Handle; 8. Adjusting screw; 8-1. Screw protrusion ring; 9. Tool slider; 9-1. Slider groove; 10. Edged blade; 11. Triangular screw; 12. Straight-lined handle; A1, A2, A3, A4, A5, A6. Set screw; B. Worktable; B-1. Pressure block. Detailed Implementation

[0028] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0029] like Figures 1 to 2 As shown, a fine-tuning slitting knife holder is installed on a workbench B. The installation method is to use set screws A1 to tighten and fix the knife holder 1 and the screw hole on the workbench B. The front end of the knife holder 1 is provided with a ramp for easy removal and installation.

[0030] A film pressing block B-1 is installed on the workbench B. The film pressing block B-1 works in conjunction with the edge blade 10 on the fine-tuning slitting knife holder. Its main function is to limit the height of the material entering.

[0031] The film pressing block B-1 has a groove in the middle. The edge blade 10 can extend its cutting edge into the groove in the middle of the film pressing block B-1. The main function of this groove is to provide the edge blade 10 with a certain amount of room to move. Finally, the material enters from the plane parallel to the bottom of the film pressing block B-1 and contacts the cutting edge of the edge blade 10 for cutting.

[0032] like Figures 3 to 10 As shown, a fine-tuning slitting blade holder is provided with a small rod sliding hole 1-1 on the blade holder 1. The small rod 4 is slidably connected to the small rod sliding hole 1-1. One end of the small rod 4 is threadedly connected to the nut knob 3, and the other end is connected to the connecting frame 6.

[0033] The pressure plate 2 and the tool holder 1 are fixedly connected by set screws A2 and A3. The inner end of the nut knob 3 is provided with an annular groove 3-1 and a limiting protrusion 3-2 in sequence. The pressure plate 2 is provided with a U-shaped protrusion 2-1 that rotates in conjunction with the annular groove 3-1. The U-shaped protrusion 2-1 and the surface of the tool holder 1 have a protrusion cavity 2-2 reserved. The limiting protrusion 3-2 is installed in conjunction with the protrusion cavity 2-2.

[0034] The limiting section 5-1 of the adjustable clamping handle 5 is disposed inside the tool holder 1. The tool holder 1 has a tool holder threaded hole 1-2 for connecting the limiting section 5-1. The tool holder threaded hole 1-2 communicates with the small rod sliding hole 1-1. The small rod 4 has a small rod groove 4-1 axially formed in the middle. The front end of the limiting section 5-1 extends into the small rod groove 4-1 and slides with the inner wall of the small rod groove 4-1 or locks with the bottom of the small rod groove 4-1.

[0035] The small rod 4 includes a thick end 4-2 passing through the tool holder 1 and a thin end 4-3 further away from the tool holder 1; the connecting frame 6 is rotatably connected to the thin end 4-3 of the small rod, and a connecting frame limiting surface 4-4 is provided at the connection position of the thick end 4-2 and the thin end 4-3 of the small rod. When the connecting frame 6 is installed, it cooperates with the connecting frame limiting surface 4-4 for limiting; a triangular screw 11 is provided on the connecting frame 6, and the inner end of the triangular screw 11 passes through the connecting frame 6 and cooperates with the thin end 4-3 of the small rod to lock the connecting frame 6.

[0036] The connecting frame 6 has a tool slide groove 6-1 at the middle of its front end, and a tool slider 9 is slidably connected inside the tool slide groove 6-1; the connecting frame 6 is also provided with a straight-lined handle 12, the inner end of which passes through the connecting frame 6 and cooperates with the tool slider 9 to lock the tool slider 9.

[0037] An adjusting screw 8 is provided in the tool slide groove 6-1. One end of the adjusting screw 8 is threaded to the tool slider 9, and the other end passes through the connecting frame 6 and is fixedly connected to the handle 7 with a set screw A4. The adjusting screw 8 has a screw protrusion ring 8-1 in the middle. When the adjusting screw 8 is inserted into the connecting frame 6, the screw protrusion ring 8-1 and the connecting frame 6 cooperate to limit the adjusting screw 8. Rotating the handle 7 can drive the adjusting screw 8, thereby driving the tool slider 9 to move axially along the adjusting screw 8.

[0038] The tool slider 9 has a slider groove 9-1 in the middle, and set screws A5 and A6 are provided on the tool slider 9. The inner ends of the set screws A5 and A6 penetrate the side wall of the tool slider 9 and cooperate with the slider groove 9-1 to fix the edged blade 10.

[0039] Example 1

[0040] First, fix the tool holder 1 to the workbench B with the fixing screw A1, and fine-tune the nut knob 3 so that the front end of the limiting section 5-1 of the adjustable tightening handle 5 is exactly in the middle of the groove 4-1 of the small rod. Then tighten the adjustable tightening handle 5 to limit the small rod 4.

[0041] Rotate the connecting frame 6 to tilt the edged blade 10 at a certain angle for better material cutting. Tighten the triangular screw 11 to limit the connecting frame 6. Then rotate the handle 7 to drive the cutter slider 9, inserting a small portion of the front end of the edged blade 10 into the groove of the film pressing block B-1. The tip of the edged blade 10 is a certain distance from the bottom of the groove of the film pressing block B-1, leaving enough space for adjusting the cutting edge of the cutter. After setting, tighten the straight-lined handle 12 to limit the cutter slider 9. Then, the soft film material enters from below the film pressing block B-1 and contacts the cutting edge of the edged blade 10 for cutting.

[0042] The following are the fine-tuning steps:

[0043] If the tool deviates laterally, it needs to be adjusted laterally. First, rotate the adjustable clamping handle 5 to release the small rod 4, then rotate the nut knob 3 to make the small rod 4 slide along the axis, pushing the connecting frame 6 to become driven, thereby driving the tool slider 9, and finally making the edged blade 10 correct the error. After the correction is completed, tighten the adjustable clamping handle 5 to lock the small rod 4.

[0044] like Figure 10 As shown, the tool holder 1 is provided with a small rod sliding hole 1-1, and the thick end 4-2 of the small rod is slidably connected to the small rod sliding hole 1-1. The adjustable tightening handle 5 includes a limiting section 5-1, which is disposed through the inside of the tool holder 1. The tool holder 1 is provided with a tool holder threaded hole 1-2 for connecting the limiting section 5-1, and the tool holder threaded hole 1-2 is connected to the small rod sliding hole 1-1.

[0045] like Figure 5 As shown, since the pressure plate 2 is fixed to the tool holder 1 by set screws A2 and A3, and the pressure plate 2 is provided with a U-shaped protruding ring 2-1, the U-shaped protruding ring 2-1 and the surface of the tool holder 1 form a protruding ring cavity 2-2. These structures can just cooperate with the annular groove 3-1 and the limiting protruding ring 3-2 arranged sequentially at the inner end of the nut knob 3 to rotate, forming a rotational cooperation structure; as Figure 6 As shown, the thick end 4-2 of the small rod is threadedly connected to the nut knob 3. Since the nut knob 3 does not move laterally when rotating, the small rod 4 must slide when rotating the nut knob 3.

[0046] like Figure 4As shown, the small rod 4 has a small rod groove 4-1. Rotating the nut knob 3 causes the small rod 4 to slide, which may result in the small rod 4 rotating on its own. The front end of the limiting section 5-1 of the adjustable tightening handle 5 extends into the small rod groove 4-1. When the adjustable tightening handle 5 is not tightened, the front end of the limiting section 5-1 contacts and engages with the inner wall of the small rod groove 4-1, thus limiting the rotation of the small rod 4. This forms a screw drive structure, allowing the small rod 4 to slide only axially, providing guidance for the lateral offset of the adjustment tool. This guiding process does not require... External intervention greatly simplifies the operation process; at the same time, when the inner wall of either end of the small rod groove 4-1 contacts the front end of the limiting section 5-1, the sliding of the small rod 4 will be limited, which can prevent the tool from sliding too far beyond the adjustment range. This process does not require manual adjustment. Therefore, the length of the small rod groove 4-1 needs to be determined according to the material roughing qualification standard, and the length range is 3cm-6cm; when the adjustable tightening handle 5 is tightened, the small rod 4 will be limited and locked, so that the tool will no longer slide laterally.

[0047] As can be seen from the above, when adjusting the lateral displacement of the tool using this utility model, it is only necessary to rotate the nut knob 3, and after the adjustment is completed, it is only necessary to tighten the adjustable clamping handle 5 to complete the fine adjustment.

[0048] The above fine-tuning operations can be completed without stopping production.

[0049] In this utility model, the adjustable locking handle 5 and the groove 4-1 of the small rod can cooperate to achieve three beneficial effects at the same time: first, it enables the small rod 4 to slide laterally; second, it limits the sliding distance of the small rod 4; and third, it can lock the small rod 4 to stop it from sliding. Achieving three complex functions through a simple mechanical structure is one of the innovations of this patent.

[0050] Example 2

[0051] This embodiment is a further optimization of Embodiment 1.

[0052] If the tool wears out after a period of use, the cutting position of the tool edge needs to be replaced. Keep the connecting bracket 6 still, rotate the straight-line handle 12 to release the tool slider 9, and then rotate the handle 7 to drive the adjusting screw 8. The adjusting screw 8 drives the tool slider 9, and the tool slider 9 drives the edged blade 10 to finely adjust the material receiving position of the tool edge. After the adjustment is completed, tighten the straight-line handle 12 to limit the slider 9.

[0053] like Figure 7 , 8As shown, a tool slide groove 6-1 is provided in the middle of the front end of the connecting frame 6. A tool slider 9 is slidably connected inside the tool slide groove 6-1. An adjusting screw 8 is provided inside the tool slide groove 6-1. One end of the adjusting screw 8 is threadedly connected to the tool slider 9, and the other end passes through the connecting frame 6 and is fixedly connected to the handle 7 with a set screw A4. A screw protrusion ring 8-1 is provided in the middle of the adjusting screw 8. When the adjusting screw 8 is inserted into the connecting frame 6, the screw protrusion ring 8-1 and the connecting frame 6 cooperate to contact and limit the adjusting screw 8. Rotating the handle 7 can drive the adjusting screw 8, thereby driving the tool slider 9 to move axially along the adjusting screw 8.

[0054] The aforementioned lead screw protrusion 8-1 is in contact with the connecting frame 6. One end of the adjusting lead screw 8 is threadedly connected to the tool slider 9, and the other end passes through the connecting frame 6 and is fixedly connected to the handle 7 with a set screw A4. This structure is similar to the structure formed by the tool holder 1, pressure plate 2 and nut knob 3, which can make the tool slider 9 slide strictly along the axial direction of the adjusting lead screw 8.

[0055] like Figure 7 As shown, the connecting frame 6 is also provided with a straight-lined handle 12. The inner end of the straight-lined handle 12 passes through the connecting frame 6 and cooperates with the tool slider 9 to lock the tool slider 9. When the straight-lined handle 12 is not tightened, turning the handle 7 may cause the tool slider 9 to rotate. However, since the tool slider 9 is in contact with the inner wall of the tool groove 6-1, the tool slider 9 is limited and will not rotate. When the straight-lined handle 12 is tightened, the tool slider 9 will be locked. Therefore, the screw drive structure in the connecting frame 6 is similar to the structure formed by the small rod groove 4-1 and the front end of the limiting section 5-1 of the adjustable tightening handle 5, and has the same characteristics.

[0056] The above fine-tuning operations can be completed without stopping production.

[0057] Example 3

[0058] This embodiment is a further optimization of embodiment 1 or embodiment 2.

[0059] like Figure 9 , 10 As shown, the small rod 4 includes a thicker end 4-2 passing through the tool holder 1 and a thinner end 4-3 farther from the tool holder 1. A connecting frame limiting surface 4-4 is provided at the connection position between the thicker end 4-2 and the thinner end 4-2. When installed, the connecting frame 6 engages with the connecting frame limiting surface 4-4 for limiting position. The connecting frame 6 is rotatably connected to the thinner end 4-3 of the small rod. Figure 4 , 9 As shown, the connecting frame 6 is provided with a triangular screw 11. The inner end of the triangular screw 11 passes through the connecting frame 6 and cooperates with the thin end 4-3 of the small rod to lock the connecting frame 6. The connecting frame 6 is moved laterally by the transmission of the small rod 4.

[0060] If the cutting edge of the tool is completely worn, the edged blade 10 needs to be replaced. First, rotate the triangular screw 11 to release the connecting bracket 6, then rotate the connecting bracket 6 to flip the edged blade 10 down to expose the cutting edge. Then, loosen the set screws A5 and A6 to release the edged blade 10. Use the new edged blade 10 to push the old edged blade 10 out of the tool slider 9. Finally, tighten the set screws A5 and A6 to fix the edged blade 10. Rotate the connecting bracket 6 upwards to adjust the material receiving angle of the blade cutting edge. Tighten the triangular screw 11 to lock the connecting bracket 6. Then, adjust the tool according to the above fine-tuning operation so that the tool is placed in the correct position. Finally, the soft film material enters from below the pressure block B-1 and contacts the cutting edge of the edged blade 10 for cutting.

[0061] All of the above embodiments can only be completed under the premise that the overall tool holder is relatively stable. However, the structure of this utility model can be stable enough: multiple rotational fit structures and lead screw transmission structures are used, and multiple locking measures are used to lock the sliding or rotating parts. This allows the other parts to still work stably even when some parts of the slitting tool holder are unlocked, which greatly improves production efficiency and the ease of operation and control.

[0062] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A fine-tuning slitting blade holder, characterized in that: The slitting blade holder includes a blade holder (1), a pressure plate (2), a nut knob (3), a small rod (4), an adjustable tightening handle (5), a connecting frame (6), and a blade with an edge (10). The tool holder (1) is provided with a small rod sliding hole (1-1), the small rod (4) is slidably connected to the small rod sliding hole (1-1), one end of the small rod (4) is threadedly connected to the nut knob (3), and the other end is connected to the connecting frame (6); the edged blade (10) is provided on the connecting frame (6); The pressure plate (2) is fixedly connected to the tool holder (1). The inner end of the nut knob (3) is provided with an annular groove (3-1) and a limiting protrusion (3-2). The pressure plate (2) is provided with a U-shaped protrusion (2-1) that rotates in cooperation with the annular groove (3-1). The U-shaped protrusion (2-1) and the surface of the tool holder (1) are provided with a protrusion cavity (2-2). The limiting protrusion (3-2) is installed in cooperation with the protrusion cavity (2-2). The limiting section (5-1) of the adjustable clamping handle (5) is disposed inside the tool holder (1). The tool holder (1) is provided with a tool holder threaded hole (1-2) for connecting the limiting section (5-1). The tool holder threaded hole (1-2) is connected to the small rod sliding hole (1-1). The small rod (4) has a small rod groove (4-1) in the middle along the axial direction. The front end of the limiting section (5-1) extends into the small rod groove (4-1) and slides with the inner wall of the small rod groove (4-1) or locks with the bottom of the small rod groove (4-1).

2. The fine-tuning slitting blade holder as described in claim 1, characterized in that: The length of the groove (4-1) of the small rod is in the range of 3cm-6cm.

3. The fine-tuning slitting blade holder as described in claim 1, characterized in that: The small rod (4) includes a thick end (4-2) that passes through the tool holder (1) and a thin end (4-3) that is farther away from the tool holder (1); the connecting frame (6) is rotatably connected to the thin end (4-3), and a connecting frame limiting surface (4-4) is provided at the connection position of the thick end (4-2) and the thin end (4-3) of the small rod. When the connecting frame (6) is installed, it cooperates with the connecting frame limiting surface (4-4) for contact and limiting; a triangular screw (11) is provided on the connecting frame (6), and the inner end of the triangular screw (11) passes through the connecting frame (6) and cooperates with the thin end (4-3) of the small rod to lock the connecting frame (6).

4. The fine-tuning slitting blade holder as described in claim 1, characterized in that: The connecting frame (6) has a tool slide groove (6-1) in the middle of its front end, and a tool slider (9) is slidably connected inside the tool slide groove (6-1); the connecting frame (6) is also provided with a straight-line handle (12), the inner end of which passes through the connecting frame (6) and cooperates with the tool slider (9) to lock the tool slider (9). An adjusting screw (8) is provided in the tool slide groove (6-1). One end of the adjusting screw (8) is threaded to the tool slider (9), and the other end passes through the connecting frame (6) and is fixedly connected to the handle (7). A screw protrusion (8-1) is provided in the middle of the adjusting screw (8). When the adjusting screw (8) is inserted into the connecting frame (6), the screw protrusion (8-1) and the connecting frame (6) cooperate to contact and limit the adjusting screw (8). Rotating the handle (7) can drive the adjusting screw (8), thereby driving the tool slider (9) to move axially along the adjusting screw (8).

5. The fine-tuning slitting blade holder as described in claim 4, characterized in that: The tool slider (9) has a slider groove (9-1) in the middle. A set screw is provided on the tool slider (9). The inner end of the set screw passes through the side wall of the tool slider (9) and cooperates with the slider groove (9-1) to fix the edge blade (10).

6. The fine-tuning slitting blade holder as described in claim 1, characterized in that: The blade (10) with edge is fitted with a pressure block (B-1) on the outside of the blade, and the bottom of the pressure block (B-1) is provided with a blade receiving groove.

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