Multipurpose bimetal saw blade with gradually-changed tooth structure

Abstract

The utility model discloses a multi-purpose bimetal saw blade with a gradually changing tooth structure, which comprises a saw frame, a distance adjusting rod, a first clamping rod and a second clamping rod are arranged on the saw frame, a rack frame is detachably connected to the first clamping rod and the second clamping rod, saw blade frames are detachably connected to the upper end and the lower end of the rack frame, and the saw blade frames are arranged on the saw frame. Thin teeth and thick teeth are arranged on the saw blade frame; a mounting strip is fixedly connected to the lower surface of the rack frame, side plates are fixedly connected to the surfaces of the two sides of the mounting strip, a check block is fixedly connected to one end of the mounting strip, a mounting groove is formed in the saw blade frame, a moving groove is formed in the mounting strip, and a spring and a limiting plate are arranged in the moving groove. The outer surface of the limiting plate is fixedly connected with a positioning block, and the positioning block is of an inclined type. By means of the device, when the thin teeth or the thick teeth are abraded, the positioning blocks are pressed to retract into the moving grooves, the saw blade frame is pulled out for replacement, and resource waste of whole set replacement is avoided.

Description

Technical Field

[0001] This utility model relates to the field of saw blade technology, and in particular to a multi-purpose bimetallic saw blade with a gradient tooth structure. Background Technology

[0002] Currently, bimetal saw blades are commonly used cutting tools in the metal processing industry. Due to their good wear resistance and fracture resistance, they are widely used in the metal cutting industry. Since the object being cut is metal, tooth wear is normal and the saw blade needs to be replaced frequently.

[0003] Existing saw blade technology mostly uses a one-piece saw blade. However, if the teeth wear out during use, the entire saw blade must be replaced. For example, Chinese patent discloses "A multi-purpose bimetallic saw blade with a gradient tooth structure" (application number CN202123126543.2). It uses a coarse and fine toothed rack assembly connected to the rack frame by bolts. If the coarse and fine toothed rack assemblies are damaged, they can be disassembled and replaced separately without replacing the rack frame. However, disassembly is cumbersome, and since the saw blade itself is relatively thin, removing the bolts is even more cumbersome and difficult to detect. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a multi-purpose bimetal saw blade with a gradient tooth structure. When the fine or coarse teeth on the saw blade are worn, the operator presses the positioning block on the saw blade holder to retract it into the moving groove, and then pulls out the saw blade holder for replacement. When reinstalling, the new saw blade holder is slid in along the installation strip, automatically guided and pressed in when passing the inclined positioning block, and finally abuts against the stop block to complete the installation. The positioning block returns to its original position under the action of the spring, realizing quick disassembly and assembly and firm fixation.

[0005] This utility model also provides a multi-purpose bimetallic saw blade with the aforementioned gradient tooth structure, comprising: a saw frame, on which an adjusting rod, a first locking rod, and a second locking rod are provided; a rack frame is detachably connected to the first and second locking rods; saw blade frames are detachably connected to both ends of the rack frame; the saw blade frame is provided with fine teeth and coarse teeth; an installation strip is fixedly connected to the lower surface of the rack frame; side plates are fixedly connected to both sides of the installation strip; a stop block is fixedly connected to one end of the installation strip; an installation groove is provided on the saw blade frame; a moving groove is provided inside the installation strip; a spring is provided inside the moving groove; a limit plate is slidably connected inside the moving groove; a positioning block is fixedly connected to the outer surface of the limit plate; the positioning block is inclined. With this device, when the fine or coarse teeth become worn, pressing the positioning block causes it to retract into the moving groove, allowing the saw blade frame to be pulled out for replacement, avoiding the waste of resources from replacing the entire set.

[0006] According to the present invention, a multi-purpose bimetal saw blade with a gradient tooth structure is provided. The first locking rod is fixedly connected to the adjusting rod, and the first and second locking rods are located at both ends of the rack frame. Through this device, the saw blade frame can be quickly fixed and disassembled by adjusting the position of the locking rods, improving assembly efficiency.

[0007] According to the present invention, a multi-purpose bimetal saw blade with a gradient tooth structure is provided. The fine and coarse teeth have the same structure and are both linearly arrayed. The width of the fine teeth is smaller than that of the coarse teeth. Through this device, gradient cutting can be achieved by using a linear array and width difference, improving adaptability to various materials.

[0008] According to the present invention, a multi-purpose bimetal saw blade with a gradient tooth structure is provided, wherein the width of the saw blade holder is equal to the width of the toothed rack holder, and the left side of the saw blade holder is fitted with a stop block. Through this device, the equal width design and the fitted stop block prevent displacement of the saw blade holder, ensuring cutting stability.

[0009] According to the present invention, a multi-purpose bimetal saw blade with a gradient tooth structure is provided, wherein the side plate is located at the bottom of the mounting strip, and the side plate and the mounting strip are combined to form an inverted T-shape. This device, through the inverted T-structure, enhances assembly strength, improves the overall stability of the device, and prevents the rack frame from falling off.

[0010] According to the present invention, a multi-purpose bimetal saw blade with a gradient tooth structure is provided. The mounting groove is T-shaped and extends through the saw blade frame. The mounting groove is clearance-fitted with the side plate and mounting strip. Through this device, the T-shaped groove and the mounting structure work together to ensure smooth sliding and secure assembly.

[0011] According to the present invention, a multi-purpose bimetal saw blade with a gradient tooth structure is provided. The other end of the spring is fixedly connected to a limiting plate, and a baffle is fixedly connected to the top of the moving groove. The size of the baffle is smaller than that of the limiting plate. Through this device, the baffle and spring ensure that the positioning block is always on the outside, thereby locking the saw blade frame.

[0012] According to the present invention, a multi-purpose bimetal saw blade with a gradient tooth structure is provided. The ramp of the positioning block is located on the right side of the positioning block, and the left surface of the positioning block is in contact with the saw blade holder. The positioning block is located on both sides of the mounting strip. Through this device, the ramp design and the contact structure guide the saw blade holder to slide in and automatically lock it, improving installation convenience.

[0013] Beneficial effects

[0014] Compared with existing technologies, this multi-purpose bimetal saw blade with a gradient tooth structure allows the operator to press the positioning block on the saw blade holder when the fine or coarse teeth on the saw blade wear down, causing it to retract into the moving groove. The saw blade holder can then be pulled out for replacement. When reinstalling, the new saw blade holder is slid in along the mounting strip, automatically guided and pressed in as it passes the inclined positioning block, and finally abuts against the stop block to complete the installation. The positioning block returns to its original position under the action of the spring, achieving quick disassembly and secure fixation. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a front view of the multipurpose bimetal saw blade with a gradient tooth structure according to this utility model;

[0017] Figure 2 This utility model relates to a multi-purpose bimetal saw blade with a gradient tooth structure. Figure 1 Internal structure diagram;

[0018] Figure 3 This utility model relates to a multi-purpose bimetal saw blade with a gradient tooth structure. Figure 1 Internal sectional view;

[0019] Figure 4 In the multi-purpose bimetal saw blade with gradient tooth structure of this utility model Figure 2 Enlarged view of point A in the middle;

[0020] Figure 5 In the multi-purpose bimetal saw blade with gradient tooth structure of this utility model Figure 3 Enlarged view of section B in the middle.

[0021] Legend:

[0022] 1. Saw frame; 2. Rack frame; 3. Adjusting rod; 4. First locking rod; 5. Second locking rod; 6. Fine tooth; 7. Coarse tooth; 8. Stop block; 9. Mounting strip; 10. Side plate; 11. Mounting groove; 12. Saw blade frame; 13. Spring; 14. Moving groove; 15. Limiting plate; 16. Baffle; 17. Positioning block. Detailed Implementation

[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0024] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 This utility model discloses a multi-purpose bimetal saw blade with a gradient tooth structure, comprising: a saw frame 1, on which an adjusting rod 3, a first locking rod 4, and a second locking rod 5 are provided. A rack frame 2 is detachably connected to the first locking rod 4 and the second locking rod 5. The first locking rod 4 is fixedly connected to the adjusting rod 3. The first locking rod 4 and the second locking rod 5 are located at both ends of the rack frame 2. A saw blade frame 12 is detachably connected to both the upper and lower ends of the rack frame 2. The saw blade frame 12 is provided with fine teeth 6 and coarse teeth 7. The fine teeth 6 and the coarse teeth 7 have the same structure and are linearly arrayed. The tooth width of the fine teeth 6 is smaller than that of the coarse teeth 7.

[0025] Specifically, the two ends of the rack frame 2 are respectively installed on the first clamping rod 4 and the second clamping rod 5. If it is necessary to tighten the rack frame 2 to prevent it from falling off, the adjusting rod 3 is rotated to tighten the rack frame 2. When facing different metals, it is cut by the fine teeth 6 and the coarse teeth 7 respectively, thus achieving a multi-purpose function. Both the fine teeth 6 and the coarse teeth 7 are gradient teeth, which can improve its cutting efficiency.

[0026] Reference Figure 1 , Figure 4 , Figure 5 A mounting strip 9 is fixedly connected to the lower surface of the rack frame 2. Side plates 10 are fixedly connected to both sides of the mounting strip 9. A stop block 8 is fixedly connected to one end of the mounting strip 9. The width of the saw blade frame 12 is equal to the width of the rack frame 2. The left side of the saw blade frame 12 is in contact with the stop block 8. The side plate 10 is located at the bottom of the mounting strip 9. The side plate 10 and the mounting strip 9 are combined to form an inverted T-shape. A mounting groove 11 is provided on the saw blade frame 12. The mounting groove 11 is T-shaped and penetrates the saw blade frame 12. The mounting groove 11 is clearance-fitted with the side plate 10 and the mounting strip 9. The installation strip 9 has a movable groove 14 inside, a spring 13 inside the movable groove 14, a limit plate 15 slidably connected inside the movable groove 14, the other end of the spring 13 is fixedly connected to the limit plate 15, a baffle 16 is fixedly connected to the top inside the movable groove 14, the size of the baffle 16 is smaller than the size of the limit plate 15, a positioning block 17 is fixedly connected to the outer surface of the limit plate 15, the positioning block 17 is inclined, the slope of the positioning block 17 is located on the right side of the positioning block 17, the left surface of the positioning block 17 is in contact with the saw blade frame 12, and the positioning block 17 is located on both sides of the installation strip 9.

[0027] Specifically, when the fine tooth 6 or coarse tooth 7 shows wear, the operator presses the positioning block 17, causing it to retract into the moving groove 14. Then, the saw blade holder 12 can be pulled out for replacement, without needing to replace the entire blade. Furthermore, since the saw blade holder 12 and the toothed rack 2 have the same width, there will be no jamming during cutting, allowing for a complete cut. During installation, the saw blade holder 12 is slid into the mounting strip 9. As it passes the positioning block 17, its shape makes it easier for the saw blade holder 12 to enter, pressing against the stop block 8. After the saw blade holder 12 disengages from the positioning block 17, the positioning block 17 returns to its original position under the action of the spring 13.

[0028] Working principle: When the fine tooth 6 or coarse tooth 7 is worn, the operator presses the positioning block 17 to retract it into the moving groove 14, and then pulls out the saw blade holder 12 for replacement without replacing the entire saw blade. During installation, the saw blade holder 12 is slid into the mounting strip 9. When passing the positioning block 17, its shape makes it easier for the saw blade holder 12 to enter the interior and press against the stop block 8. After the saw blade holder 12 disengages from the positioning block 17, the positioning block 17 returns to its original position under the action of the spring 13.

[0029] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A multi-purpose bimetal saw blade with a gradient tooth structure, characterized in that, include: A saw frame (1) is provided with an adjustment rod (3), a first locking rod (4) and a second locking rod (5). A rack frame (2) is detachably connected to the first locking rod (4) and the second locking rod (5). A saw blade frame (12) is detachably connected to both the upper and lower ends of the rack frame (2). The saw blade frame (12) is provided with fine teeth (6) and coarse teeth (7). The rack frame (2) is fixedly connected to the lower surface of the rack frame (2), and the two sides of the rack frame (9) are fixedly connected to the side plates (10). One end of the rack frame (9) is fixedly connected to the stop block (8). The saw blade frame (12) is provided with an installation groove (11). The inside of the rack frame (9) is provided with a moving groove (14). The inside of the moving groove (14) is provided with a spring (13). The inside of the moving groove (14) is slidably connected to a limit plate (15). The outer surface of the limit plate (15) is fixedly connected to a positioning block (17). The positioning block (17) is a ramp type.

2. The multi-purpose bimetal saw blade with a gradient tooth structure according to claim 1, characterized in that, The first locking rod (4) is fixedly connected to the adjusting rod (3), and the first locking rod (4) and the second locking rod (5) are located at both ends of the rack frame (2).

3. The multi-purpose bimetal saw blade with a gradient tooth structure according to claim 1, characterized in that, The fine teeth (6) and coarse teeth (7) have the same structure. Both the fine teeth (6) and coarse teeth (7) are linearly arrayed. The width of the fine teeth (6) is smaller than that of the coarse teeth (7).

4. The multi-purpose bimetal saw blade with a gradient tooth structure according to claim 1, characterized in that, The width of the saw blade holder (12) is equal to the width of the rack holder (2), and the left side of the saw blade holder (12) is in contact with the stop block (8).

5. A multi-purpose bimetal saw blade with a gradient tooth structure according to claim 1, characterized in that, The side plate (10) is located at the bottom of the mounting strip (9), and the side plate (10) and the mounting strip (9) are combined to form an inverted T-shape.

6. A multi-purpose bimetal saw blade with a gradient tooth structure according to claim 1, characterized in that, The mounting groove (11) is T-shaped and passes through the saw blade frame (12). The mounting groove (11) is in clearance fit with the side plate (10) and the mounting strip (9).

7. A multi-purpose bimetal saw blade with a gradient tooth structure according to claim 1, characterized in that, The other end of the spring (13) is fixedly connected to the limiting plate (15), and a baffle (16) is fixedly connected to the top of the moving groove (14). The size of the baffle (16) is smaller than that of the limiting plate (15).

8. A multi-purpose bimetal saw blade with a gradient tooth structure according to claim 1, characterized in that, The ramp of the positioning block (17) is located on the right side of the positioning block (17), the left surface of the positioning block (17) is in contact with the saw blade frame (12), and the positioning block (17) is located on both sides of the mounting strip (9).

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