Stiffness cutting knife

Abstract

The utility model provides a stiffness cutting knife, which relates to the technical field of cutting knives and comprises a guide rod. The outer side face of the guide rod is slidably connected with a sliding frame, the rear end of the sliding frame is connected with a scale block through a bolt, the upper side face of the scale block is rotatably connected with a threaded rotating rod, the outer side face of the threaded rotating rod is in meshed connection with a pressing plate, and a pedestal is welded to the rear end of the guide rod. The upper side face of the pedestal is connected with a cutting plate through bolts, the upper side face of the pedestal is connected with a positioning cutter plate through bolts, and the front end of the pedestal is rotationally connected with a threaded adjusting rod. Through the arrangement of a threaded adjusting rod, a sliding frame, a scale block, a positioning cutter plate, a threaded rotating rod and a pressing plate, the accuracy of the cutting length of a sheet sample is improved, and the situation that the cutting size structure of the sheet sample is irregular due to the fact that the sheet shakes along with the hand is avoided; the problems that a traditional stiffness cutting knife cannot accurately measure the sampling length, and due to a sheet handheld fixing mode, the size structure of a sample is irregular, and the error of the cutting length is large are solved.

Description

Technical Field

[0001] This utility model belongs to the field of cutting knife technology, and more specifically, relates to a stiffness cutting knife. Background Technology

[0002] A stiffness cutter is a cutting and sampling tool used to test the stiffness of materials. It is mainly used for sampling and cutting thin materials such as mica, film, paper and cardboard. By using a stiffness cutter to sample thin materials, more accurate physical property test data can be obtained from the samples, ensuring product quality. Currently, in the sampling process of stiffness cutting, the sheet to be sampled is usually placed on a blade holder, and then the cutting bar is manually released. The weight then uses gravity to drive the cutting blade to quickly flip and fall. The cutting blade, in conjunction with the edge of the through groove on the upper side of the blade holder, pushes and cuts the sheet to form a long strip sample. However, depending on the test material, the required length of the sampled sheet is not uniform. Traditional stiffness cutting blades cannot accurately locate and measure the required cutting length of the sheet. In addition, the stiffness cutting blade is only used to hold the sheet in the hand and fix it on the blade holder. Hand shaking can easily cause the sheet to move. Therefore, the sheet sample cut by traditional stiffness cutting blades has an irregular size structure and a large error in cutting length, which affects the accuracy of subsequent stiffness physical tests. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a stiffness cutting knife, which solves the problems of traditional stiffness cutting knives being unable to accurately measure the sampling length and the irregular size and structure of the sample and large errors in the cutting length caused by the handheld fixing method of thin sheets.

[0004] This utility model provides a stiffness cutting knife, including a base plate; a vertical plate is welded to the upper side of the base plate, a foot pad is adhered to the lower side of the base plate, a base is welded to the upper side of the base plate, and a weight is hinged to the rear end of the base; the weight has a through hole running horizontally, a support rod is welded into the through hole, a gravity cutting knife is bolted to the lower side of the weight, and a lifting rod is installed at the front end of the weight; it also includes a guide rod; a vertical plate is welded to the front end of the guide rod, a slide is slidably connected to the outer side of the guide rod, and the rear end of the slide is bolted to the guide rod. A ruler block is connected, and a threaded rotating rod is rotatably connected to the upper side of the ruler block. A pressure plate is engaged with the outer side of the threaded rotating rod, and a clamping knob is welded to the top of the threaded rotating rod. A base is welded to the rear end of the guide rod. A cutting plate is bolted to the upper side of the base, and a positioning cutting plate is bolted to the upper side of the base. A pad is installed on the upper side of the positioning cutting plate, and a threaded adjusting rod is rotatably connected to the front end of the base. A vertical plate is rotatably connected to the outer side of the threaded adjusting rod, and an adjusting knob is welded to the front end of the threaded adjusting rod.

[0005] In at least some embodiments, the number of positioning cutting plates is two sets, the positioning cutting plates are symmetrically distributed on the left and right, and the upper side of each set of positioning cutting plates is printed with scale marks.

[0006] In at least some embodiments, the front side of the slide is provided with a threaded through hole near the center of the bottom end, the outer side of the threaded adjusting rod is threadedly engaged in the threaded through hole of the slide, and the left and right sides of the threaded through hole of the slide are symmetrically provided with through hole structures that pass through from front to back, and two sets of guide rods are respectively inserted into the two sets of through holes of the slide.

[0007] In at least some embodiments, the number of pressure plates is two sets, the lower side of the pressure plates is bonded with rubber gaskets, each set of pressure plates has a protruding plate at the rear end, the center of the protruding plate has a threaded through hole, the outer side of the threaded rotating rod is threadedly engaged in the threaded through hole of the protruding plate of the pressure plate, and the rear side of the pressure plate is attached to the front side of the scale block.

[0008] In at least some embodiments, the number of ruler blocks is two sets, the ruler blocks are symmetrically distributed left and right, each set of ruler blocks is an L-shaped structure, and the lower side of the ruler block is attached to the upper side of the positioning cutter plate.

[0009] In at least some embodiments, the upper side of the pedestal is provided with a through groove, and the right side of the pedestal is provided with a rectangular groove structure. The through groove and the rectangular groove structure of the pedestal are interconnected, and the bottom side of the rectangular groove of the pedestal is a sloping structure.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. In this utility model, the threaded engagement transmission structure formed by the threaded adjustment rod on the outer side of the adjustment knob and the threaded through hole of the slide is operated. This causes the scale block connected to the slide push-pull bolt to move back and forth along the guide rod, allowing the scale block to slide and adjust according to the scale surface printed on the side of the positioning cutter plate. This enables the stiffness cutter to measure and adjust the placement position of the thin sheet according to the different sampling and cutting length requirements of the thin sheet, ensuring the accurate cutting of the thin sheet length by the stiffness cutter and greatly improving the accuracy of the cutting length of the thin sheet sample.

[0012] 2. In this utility model, the threaded engagement transmission structure formed by the threaded rotating rod in the threaded through hole of the pressure plate causes the pressure plate to move vertically downward against the front side of the ruler block. This allows the lower side of the pressure plate to cooperate with the upper side of the positioning cutter plate to clamp and fix the thin sheet. This eliminates the need for hand-held thin sheet cutting and fixing, avoids irregularities in the size and structure of the thin sheet sample due to hand shaking, and improves the cutting and sampling quality of the thin sheet by the stiff cutting blade. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the rear side view of this utility model.

[0015] Figure 3 This is a schematic diagram of the right-side structure of this utility model.

[0016] Figure 4 This is a front view structural diagram of this utility model.

[0017] Figure 5 This is a top view of the structure of this utility model.

[0018] Figure 6 This is a cross-sectional structural diagram of the present invention.

[0019] Figure 7 This is the utility model Figure 6 Enlarged structural diagram of part A in the middle.

[0020] Reference numerals: 1. Base plate; 2. Vertical plate; 3. Guide rod; 4. Threaded adjusting rod; 5. Adjusting knob; 6. Platform; 7. Slide; 8. Scale block; 9. Lifting rod; 10. Weight block; 11. Support rod; 12. Pressure plate; 13. Cutting board; 14. Positioning cutting blade plate; 15. Foot pad; 16. Gravity cutting blade; 17. Pad block; 18. Clamping knob; 19. Threaded rotating rod; 20. Rubber pad. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] like Figures 1-7As shown, this utility model provides a stiffness cutting blade, including a base plate 1; a vertical plate 2 is welded to the upper side of the base plate 1, a foot pad 15 is glued to the lower side of the base plate 1, a base 6 is welded to the upper side of the base plate 1, and a weight 10 is hinged to the rear end of the base 6; the weight 10 has a through hole running from left to right, a support rod 11 is welded into the through hole of the weight 10, a gravity cutting blade 16 is bolted to the lower side of the weight 10, and a lifting rod 9 is installed at the front end of the weight 10; it also includes a guide rod 3; a vertical plate 2 is welded to the front end of the guide rod 3, a slide 7 is slidably connected to the outer side of the guide rod 3, and the rear end of the slide 7 is bolted to the guide rod 3. A ruler block 8 is connected, and a threaded rotating rod 19 is rotatably connected to the upper side of the ruler block 8. A pressure plate 12 is engaged with the outer side of the threaded rotating rod 19. A clamping knob 18 is welded to the top of the threaded rotating rod 19. A base 6 is welded to the rear end of the guide rod 3. A cutting plate 13 is bolted to the upper side of the base 6. A positioning cutting plate 14 is bolted to the upper side of the base 6. A pad 17 is installed on the upper side of the positioning cutting plate 14. A threaded adjusting rod 4 is rotatably connected to the front end of the base 6. A vertical plate 2 is rotatably connected to the outer side of the threaded adjusting rod 4. An adjusting knob 5 is welded to the front end of the threaded adjusting rod 4.

[0023] In this embodiment, there are two sets of positioning cutter plates 14, which are symmetrically distributed on the left and right sides. Each set of positioning cutter plates 14 has scale markings printed on its upper side. The front end of the ruler block 8 moves according to the scale markings of the positioning cutter plate 14, so that the sampling personnel can accurately determine the placement position of the thin sheet by using the scale markings of the positioning cutter plate 14 and the ruler block 8, and ensure that the thin sheet is accurately cut according to the required sampling length.

[0024] In this embodiment, a threaded through hole is provided at the center of the front side of the slide 7 near the bottom end. The outer side of the threaded adjusting rod 4 is threadedly engaged in the threaded through hole of the slide 7. The slide 7 has symmetrical through hole structures on the left and right sides of the threaded through hole. Two sets of guide rods 3 are respectively inserted into the two sets of through holes of the slide 7. During the process of the adjusting knob 5 driving the threaded adjusting rod 4 to rotate, the threaded adjusting rod 4 drives the slide 7 to move back and forth along the guide rod 3. The slide 7 drives the scale block 8 connected by the rear bolt to move synchronously, so that the scale block 8 is adjusted according to the scale line of the positioning cutter plate 14.

[0025] In this embodiment, there are two sets of pressure plates 12. A rubber pad 20 is bonded to the lower side of the pressure plate 12. Each set of pressure plates 12 has a convex plate at its rear end. A threaded through hole is provided at the center of the convex plate. The outer side of the threaded rotating rod 19 is threadedly engaged with the threaded through hole of the convex plate of the pressure plate 12. The rear side of the pressure plate 12 is attached to the front side of the ruler block 8. During the rotation of the threaded rotating rod 19, the pressure plate 12 is driven to move vertically downward along the front side of the ruler block 8, so that the rubber pad 20 on the lower side of the pressure plate 12 is attached to the upper side of the sheet. The pressure plate 12, together with the positioning cutting plate 14, clamps and fixes the sheet to prevent it from shaking during the cutting process and ensures that the gravity cutting blade 16 can stably flip and fall the sheet for cutting.

[0026] In this embodiment, there are two sets of ruler blocks 8, which are symmetrically distributed on the left and right. Each set of ruler blocks 8 has an L-shaped structure. The lower side of the ruler block 8 is attached to the upper side of the positioning cutter plate 14, and the rear edge of the sheet is pressed against the front side of the ruler block 8, so that the sheet and the scale line of the positioning cutter plate 14 corresponding to the ruler block 8 can be quickly aligned and placed, making the positioning of the sheet faster and simpler.

[0027] In this embodiment, the upper side of the pedestal 6 is provided with a through groove, and the right side of the pedestal 6 is provided with a rectangular groove structure. The through groove of the pedestal 6 and the rectangular groove structure of the pedestal 6 are interconnected. The bottom side of the rectangular groove of the pedestal 6 is a sloping structure. The thin sheet sample cut by the gravity cutter 16 in conjunction with the cutting plate 13 and the positioning cutter plate 14 falls into the rectangular groove structure of the pedestal 6 through the through groove on the upper side of the pedestal 6. The thin sheet sample automatically slides out to the right side of the pedestal 6 along the sloping structure of the bottom side of the rectangular groove of the pedestal 6 by gravity, which makes it convenient for the sampling personnel to pick up the cut thin sheet sample.

[0028] The specific usage and function of this embodiment are as follows:

[0029] In this invention, when performing the adjustment, sampling, and cutting of thin sheets, the adjustment knob 5 is first manually rotated. The adjustment knob 5 drives the welded threaded adjustment rod 4 to rotate. Since the outer side of the threaded adjustment rod 4 is threadedly engaged in the threaded through hole of the slide 7, the slide 7 moves forward or backward along the guide rod 3. The slide 7 drives the scale block 8, which is bolted to the rear end, to slide synchronously on the upper side of the positioning cutter plate 14 until the lower edge of the front side of the scale block 8 aligns with the corresponding cutting length scale line of the positioning cutter plate 14. Then, the lifting rod 9 is manually pulled. The lifting rod 9 drives the gravity cutter 16, bolted to the lower side of the weight block 10, to flip and lift upward. The thin sheet is then placed on the upper side of the positioning cutter plate 14, with the rear edge of the thin sheet pressing against the front side of the two sets of scale blocks 8. The two sets of scale blocks 8 are then manually rotated in sequence. Clamping knob 18 drives threaded rotating rod 19 to rotate. Since the outer side of threaded rotating rod 19 is threadedly engaged in the threaded through hole of the convex plate of pressure plate 12, threaded rotating rod 19 drives pressure plate 12 to move downward along the front side of scale block 8. The lower sides of the two sets of pressure plates 12 cooperate with the upper sides of the two sets of positioning cutting blades 14 to clamp and fix the sheet from top to bottom. Then, release lifting rod 9. The weight block 10 pushes gravity cutting blade 16 downward by its own weight. Gravity cutting blade 16 cooperates with cutting plate 13 and two sets of positioning cutting blades 14 to cut the sheet. The cut sheet sample falls into the inclined structure of the rectangular groove of the platform 6 through the through groove on the upper side of the platform 6. The sheet sample slides to the right along the inclined structure of the platform 6 by gravity, thus completing the adjustment, sampling and cutting of the sheet.

[0030] All the above components are installed, connected, or set up using common mechanical methods, such as welding, threaded connections, and screw connections. Furthermore, the specific structure, model, and coefficient indicators of all components are based on their own technology; any method that achieves the desired effect can be implemented. The cutting board 13, foot pad 15, gravity cutter 16, and rubber gasket 20 mentioned above are all common market components. When purchasing and using them, simply connect them according to the instruction manual purchased with the product; therefore, further details are omitted here.

[0031] The technical solution of this utility model is not limited to the scope of the embodiments of this utility model. All technical contents not described in detail in this utility model are known technologies.

Claims

1. A stiff cutting blade, comprising a base plate (1); a vertical plate (2) is welded to the upper side of the base plate (1), a foot pad (15) is adhered to the lower side of the base plate (1), a base (6) is welded to the upper side of the base plate (1), and a weight (10) is hinged to the rear end of the base (6); the weight (10) is provided with a through hole running through the left and right sides, a support rod (11) is welded into the through hole of the weight (10), a gravity cutting blade (16) is connected to the lower side of the weight (10) by bolts, and a lifting rod (9) is installed at the front end of the weight (10); characterized in that: It also includes a guide rod (3); a vertical plate (2) is welded to the front end of the guide rod (3), a slide (7) is slidably connected to the outer side of the guide rod (3), a scale block (8) is bolted to the rear end of the slide (7), a threaded rotating rod (19) is rotatably connected to the upper side of the scale block (8), a pressure plate (12) is meshed to the outer side of the threaded rotating rod (19), a clamping knob (18) is welded to the top of the threaded rotating rod (19), and a base (6) is welded to the rear end of the guide rod (3); a cutting plate (13) is bolted to the upper side of the base (6), a positioning cutting plate (14) is bolted to the upper side of the base (6), a pad (17) is installed on the upper side of the positioning cutting plate (14), and a threaded adjusting rod (4) is rotatably connected to the front end of the base (6); a vertical plate (2) is rotatably connected to the outer side of the threaded adjusting rod (4), and an adjusting knob (5) is welded to the front end of the threaded adjusting rod (4).

2. The stiffness cutting blade as described in claim 1, characterized in that: The number of positioning cutting plates (14) is two sets, and the positioning cutting plates (14) are symmetrically distributed on the left and right sides. Each set of positioning cutting plates (14) has scale markings printed on its upper side.

3. The stiffness cutting blade as described in claim 1, characterized in that: The slide (7) has a threaded through hole at the center of the front side near the bottom. The outer side of the threaded adjusting rod (4) is threadedly engaged in the threaded through hole of the slide (7). The slide (7) has a through hole structure that runs through the front and back on both sides of the threaded through hole. Two sets of guide rods (3) are inserted into the two sets of through holes of the slide (7).

4. The stiffness cutting blade as described in claim 1, characterized in that: The number of pressure plates (12) is two sets. A rubber gasket (20) is glued to the lower side of the pressure plate (12). Each set of pressure plates (12) has a convex plate at the rear end. A threaded through hole is provided at the center of the convex plate. The outer side of the threaded rotating rod (19) is threadedly engaged in the threaded through hole of the convex plate of the pressure plate (12). The rear side of the pressure plate (12) is attached to the front side of the scale block (8).

5. The stiffness cutting blade as described in claim 1, characterized in that: The number of ruler blocks (8) is two sets, and the ruler blocks (8) are symmetrically distributed on the left and right. Each set of ruler blocks (8) has an L-shaped structure, and the lower side of the ruler block (8) is attached to the upper side of the positioning cutter plate (14).

6. The stiffness cutting blade as described in claim 1, characterized in that: The upper side of the pedestal (6) is provided with a through groove, and the right side of the pedestal (6) is provided with a rectangular groove structure. The through groove of the pedestal (6) and the rectangular groove structure of the pedestal (6) are interconnected. The bottom side of the rectangular groove of the pedestal (6) is a sloping structure.

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