Edge breakage preventing saw blade with alternate teeth
By designing the saw blade with alternating tooth structure, the left and right edge cutting of the carbide head is used to alternately cut, which solves the problem of edge collapse of the existing saw blades when cutting metal plates, and achieves a high-quality cutting effect.
Patent Information
- Application Number
- CN202422383663.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-29
AI Technical Summary
Existing saw blades are prone to edge collapse when cutting metal plates, resulting in low cutting quality.
A saw blade with alternating teeth is designed, and the left and right blades are alternately cut. The left and right blades are both carbide heads. The blades of the left and right blades are alternately cut into triangular grooves to reduce cutting force and avoid edge collapse.
Effectively prevent the metal plate from collapsing after cutting, significantly improving the cutting quality.
Smart Images
Figure CN223129506U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of saw blade structures, in particular to a saw blade with alternating teeth for preventing edge chipping. Background Art
[0002] The structure of a certain saw blade is as Figures 1 to 2 shown. It includes a saw blade body 1, and a plurality of tooth seats 2 are fixedly arranged on the outer edge of the saw blade body 1 along its circumferential direction. Each tooth seat 2 is integrally formed with the saw blade body 1, and a cutting head 3 is welded on the inner end surface of each tooth seat 2. The cross-section of the cutting head 3 is rectangular, and a straight cutting edge 4 is formed between the inner end surface and the top end surface of the cutting head 3. The straight cutting edges 4 are all located outside the tooth seats 2. The purpose of this saw blade is to cut a metal plate with a thickness of 2 - 4 mm.
[0003] The method of using this saw blade to cut the metal plate is as follows: The worker fixedly installs the saw blade body 1 on the main shaft of the cutting equipment, then fixes the metal plate tooling to be cut, turns on the cutting equipment, the cutting equipment drives the main shaft to rotate, the main shaft drives the saw blade body 1 to rotate, the saw blade body 1 drives each cutting head 3 thereon to move synchronously, and then the cutting equipment controls the rotating saw blade to move towards the direction of the metal plate 5. Each cutting head 3 on the saw blade alternately cuts the metal plate 5. After cutting for a period of time, the metal plate can finally be cut into two sections. As Figure 3 shown, it is the cutting path diagram of the cutting head 3 in the metal plate 5.
[0004] However, although this saw blade can cut the metal plate, there are still the following technical defects in terms of technology:
[0005] Since the straight cutting edge of the cutting head 3 is linear, the amount of metal material cut by the cutting head 3 each time is large, correspondingly resulting in a large cutting force on the cutting head 3. When the metal plate is cut into two halves, an edge chipping phenomenon occurs [burrs appear on the outer edges of the cross-sections of the left and right half metal plates]. Therefore, this saw blade has the technical defect of low cutting quality. Summary of the Utility Model
[0006] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a saw blade with alternating teeth that greatly improves the cutting quality of the metal plate and prevents edge chipping.
[0007] The object of the present utility model is achieved through the following technical solutions: A saw blade with alternating teeth for preventing edge chipping, which includes a saw blade body. A plurality of tooth seats are fixedly arranged on the outer edge of the saw blade body along its circumferential direction. Each tooth seat is integrally formed with the saw blade body. Left deflecting knives are welded on the inner end faces of the alternately arranged tooth seats. A short knife face is provided between the top face and the rear face of the left deflecting knife, and a long knife face is provided between the top face and the front face of the left deflecting knife; the short cutting edge of the short knife face of the left deflecting knife extends outside the tooth seat, and the long cutting edge of the long knife face of the left deflecting knife extends outside the tooth seat.
[0008] A right deflecting knife welded on the inner end face of the tooth seat is arranged between every two adjacent left deflecting knives. A long knife face is provided between the top face and the rear face of the right deflecting knife, and a short knife face is provided between the top face and the front face of the right deflecting knife; the short cutting edge of the short knife face of the right deflecting knife extends outside the tooth seat, and the long cutting edge of the long knife face of the right deflecting knife extends outside the tooth seat.
[0009] A central hole is provided in the middle of the saw blade body.
[0010] The distance between every two adjacent tooth seats is equal.
[0011] Both the left deflecting knife and the right deflecting knife are carbide cutting heads.
[0012] A cutting tip is formed between the short knife face and the long knife face of the left deflecting knife, and a cutting tip is formed between the short knife face and the long knife face of the right deflecting knife.
[0013] The present utility model has the following advantages: greatly improving the cutting quality of metal plates and preventing edge chipping. Description of the Drawings
[0014] Figure 1 It is a structural schematic diagram of a certain saw blade;
[0015] Figure 2 It is an axonometric view of the cutting head;
[0016] Figure 3 It is a cutting path diagram of the cutting head in the metal plate;
[0017] Figure 4 It is a structural schematic diagram of the present utility model;
[0018] Figure 5 For Figure 4 Schematic view in the A direction;
[0019] Figure 6 It is an axonometric view of the left deflecting knife;
[0020] Figure 7 For Figure 4 Schematic view in the B direction;
[0021] Figure 8Isometric view of a right-hand side tool
[0022] Figure 9 Schematic diagram showing the short and long cutting edges of a left-hand side tool cutting groove A on a metal plate
[0023] Figure 10 Schematic diagram showing the short and long cutting edges of a right-hand side tool cutting groove B on a metal plate
[0024] Figure 11 Cutting path diagram of a left-hand side tool
[0025] Figure 12 Cutting path diagram of a right-hand side tool
[0026] In the figure:
[0027] 1 - Saw blade body, 2 - Tooth seat, 3 - Tool bit, 4 - Straight cutting edge, 5 - Metal plate, 6 - Left-hand side tool, 7 - Short tool face, 8 - Long tool face, 9 - Short cutting edge, 10 - Long cutting edge, 11 - Right-hand side tool, 12 - Central hole, 13 - Tool tip, 14 - Groove A, 15 - Groove B. Specific implementation mode
[0028] The following further describes the present utility model in conjunction with the attached drawings. The protection scope of the present utility model is not limited to the following:
[0029] As Figures 4 to 8 shown, a saw blade with alternating teeth for preventing edge chipping includes a saw blade body 1, and a central hole 12 is provided in the middle of the saw blade body 1. A plurality of tooth seats 2 are fixedly arranged on the outer edge of the saw blade body 1 along its circumferential direction, and the distance between every two adjacent tooth seats 2 is equal. Each tooth seat 2 is integrally formed with the saw blade body 1, and left-hand side tools 6 are welded on the inner end faces of the alternately arranged tooth seats 2. A short tool face 7 is provided between the top end face and the rear end face of the left-hand side tool 6, and a long tool face 8 is provided between the top end face and the front end face of the left-hand side tool 6; the short cutting edge 9 of the short tool face 7 of the left-hand side tool 6 extends outside the tooth seat 2, and the long cutting edge 10 of the long tool face 8 of the left-hand side tool 6 extends outside the tooth seat 2;
[0030] A right-hand side tool 11 welded on the inner end face of the tooth seat 2 is arranged between every two adjacent left-hand side tools 6. A long tool face 8 is provided between the top end face and the rear end face of the right-hand side tool 11, and a short tool face 7 is provided between the top end face and the front end face of the right-hand side tool 11; the short cutting edge 9 of the short tool face 7 of the right-hand side tool 11 extends outside the tooth seat 2, and the long cutting edge 10 of the long tool face 8 of the right-hand side tool 11 extends outside the tooth seat 2.
[0031] Both the left-hand side tool 6 and the right-hand side tool 11 are carbide tool bits. A tool tip 13 is formed between the short tool face 7 and the long tool face 8 of the left-hand side tool 6, and a tool tip 13 is formed between the short tool face 7 and the long tool face 8 of the right-hand side tool 11.
[0032] The method of using this saw blade to cut a metal plate is as follows:
[0033] S1. The worker fixedly installs the saw blade body 1 on the main shaft of the cutting equipment, then fixes the metal plate tooling to be cut, turns on the cutting equipment, the cutting equipment drives the main shaft to rotate, the main shaft drives the saw blade body 1 to rotate, the saw blade body 1 drives each left-offset cutter 6 and right-offset cutter 11 thereon to move synchronously, and then the cutting equipment controls the rotating saw blade to move towards the metal plate 5. The short cutting edge 9 and long cutting edge 10 of the left-offset cutter 6 on the saw blade first cut a groove A14 with a triangular cross-section on the metal plate 5, as Figure 9 shown, and then the short cutting edge 9 and long cutting edge 10 of the right-offset cutter 11 cut a groove B15 with a triangular cross-section on the metal plate 5, as Figure 10 shown;
[0034] S2. As the saw blade continuously penetrates into the metal plate 5, the left-offset cutter 6 and right-offset cutter 11 that make alternating movements cut the metal plate 5 into two sections; among them, the cutting path of the left-offset cutter 6 is as Figure 11 shown, and the cutting path of the right-offset cutter 11 is as Figure 12 shown.
[0035] Among them, from the cutting path of the left-offset cutter 6, it can be seen that the amount of metal material cut by the short cutting edge 9 of the left-offset cutter 6 each time is small, and thus the cutting force generated is small. Therefore, when the metal plate 5 is cut off, no burrs will be generated on the outer edge of the cross-section of the left half of the metal plate. Compared with the saw blade as Figures 1 to 3 shown, the phenomenon of edge chipping is avoided, and thus the cutting quality is improved.
[0036] In addition, from the cutting path of the right-offset cutter 11, it can be seen that the amount of metal material cut by the short cutting edge 9 of the right-offset cutter 11 each time is small, and thus the cutting force generated is small. Therefore, when the metal plate 5 is cut off, no burrs will be generated on the outer edge of the cross-section of the right half of the metal plate. Compared with the saw blade as Figures 1 to 3 shown, the phenomenon of edge chipping is avoided, and further the cutting quality is greatly improved.
[0037] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A saw blade with alternating teeth for preventing edge chipping, characterized in that: It includes a saw blade body (1), and a plurality of tooth seats (2) are fixedly arranged on the outer edge of the saw blade body (1) along its circumferential direction. Each tooth seat (2) is integrally formed with the saw blade body (1). Left offset knives (6) are welded on the inner end faces of the tooth seats (2) arranged at intervals. A short knife face (7) is formed between the top face and the rear face of the left offset knife (6), and a long knife face (8) is formed between the top face and the front face of the left offset knife (6); the short cutting edge (9) of the short knife face (7) of the left offset knife (6) extends outside the tooth seat (2), and the long cutting edge (10) of the long knife face (8) of the left offset knife (6) extends outside the tooth seat (2). A right offset knife (11) welded on the inner end face of the tooth seat (2) is arranged between every two adjacent left offset knives (6). A long knife face (8) is formed between the top face and the rear face of the right offset knife (11), and a short knife face (7) is formed between the top face and the front face of the right offset knife (11); the short cutting edge (9) of the short knife face (7) of the right offset knife (11) extends outside the tooth seat (2), and the long cutting edge (10) of the long knife face (8) of the right offset knife (11) extends outside the tooth seat (2).
2. A saw blade with alternating teeth for preventing edge chipping according to claim 1, characterized in that: A central hole (12) is formed in the middle of the saw blade body (1).
3. A saw blade with alternating teeth for preventing edge chipping according to claim 2, characterized in that: The distance between every two adjacent tooth seats (2) is equal.
4. A saw blade with alternating teeth for preventing edge chipping according to claim 3, characterized in that: Both the left offset knife (6) and the right offset knife (11) are carbide tool bits.
5. A saw blade with alternating teeth for preventing chipping, as claimed in claim 4, wherein: A tool tip (13) is formed between the short knife face (7) and the long knife face (8) of the left offset knife (6), and a tool tip (13) is formed between the short knife face (7) and the long knife face (8) of the right offset knife (11).