Cutting saw tool bit

Abstract

The utility model relates to the technical field of saw blades, and discloses a cutting saw tool bit which comprises a saw blade, the saw blade is provided with a disc structure, a plurality of first fixing holes are formed in one side face of the saw blade in an array mode, the first fixing holes are conical, a plurality of second fixing holes are formed in the other side face of the saw blade in an array mode, and the second fixing holes are conical. The second fixing hole is also conical, and the first fixing hole and the second fixing hole are opposite in orientation; connecting mechanisms are arranged between the rotating shaft and the saw blade, and the rotating shaft is used for driving the saw blade to rotate. According to the saw blade, the connecting mechanisms are arranged on the two sides of the saw blade, when one side face of the saw blade is abraded and the saw blade needs to be replaced, the working face of the saw blade can be switched through the connecting mechanisms; therefore, the other side face of the saw blade can continue to work, and the service life of the saw blade is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of saw blades, in particular to a cutting saw head. Background Art

[0002] Saw blades are widely used to cut various materials such as wood, artificial boards, stone, metal, and non-metal. As the saw blade is used, the blade head will gradually become blunt, and even the blade head will inevitably be damaged during the cutting process, such as partially breaking or missing. Especially for materials with higher hardness, such as calcium silicate board, when cutting, the saw blade will be more worn, resulting in reduced cutting efficiency or even the entire saw blade being unusable.

[0003] For such blunt or damaged blades, each blade must be individually sharpened or replaced. Obviously, sharpening or replacing each blade individually is very inefficient. In addition, saw blades usually work on one side when in use. It is possible that one side of the saw blade is severely worn while the other side remains relatively intact and can continue to be used. If the saw blade is completely discarded, there will be a certain amount of waste. Utility Model Content

[0004] The purpose of the utility model is to provide a saw blade head to solve the technical problem of short service life of saw blade heads in the prior art.

[0005] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

[0006] A saw head, comprising:

[0007] A saw blade having a disc structure, wherein a plurality of first fixing holes are arranged in an array on one side of the saw blade, each of the first fixing holes having a conical shape, and a plurality of second fixing holes are arranged in an array on the other side of the saw blade, each of the second fixing holes also having a conical shape, and the first fixing holes and the second fixing holes are oriented in opposite directions;

[0008] A rotating shaft is provided with a connecting mechanism between the rotating shaft and the saw blade, and the rotating shaft is used to drive the saw blade to rotate.

[0009] As a preferred solution of the present invention, the connecting mechanism includes a fixed plate installed on a rotating shaft, a through hole is opened on the fixed plate, a fastener is arranged in the through hole, and the saw blade is fixedly connected to the fixed plate by inserting the other end of the fastener into the first fixing hole or the second fixing hole.

[0010] As a preferred solution of the present invention, the fastener includes a straight rod, one end of which is connected to a stop block, and the size of the stop block is larger than the size of the first fixing hole and the second fixing hole;

[0011] The other end of the straight rod passes through the through hole and is provided with an external thread on the peripheral wall thereof, and a nut is threadedly connected to the external thread.

[0012] As a preferred solution of the present invention, the stop block has a conical shape, and the size of the stop block is comparable to the size of the first fixing hole and the second fixing hole, so that the side surfaces of the saw blade always remain flush.

[0013] As a preferred solution of the present invention, a mounting hole is provided in the middle of the saw blade, and the saw blade is sleeved on the rotating shaft through the mounting hole.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] In the present invention, connecting mechanisms are provided on both sides of the saw blade. When one side of the saw blade is worn and needs to be replaced, the working surface of the saw blade can be switched through the connecting mechanism, so that the other side of the saw blade can be used to continue working, thereby increasing the service life of the saw blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely illustrative, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0017] Figure 1 A schematic structural diagram of a saw blade head is provided for an embodiment of the present utility model;

[0018] Figure 2 A schematic side view of the structure of a saw blade in a saw head is provided for an embodiment of the utility model;

[0019] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0020] Figure 4 for Figure 1 Enlarged view of point B in the middle;

[0021] The numbers in the figure represent the following:

[0022] 1 saw blade, 2 rotating shaft, 3 first fixing hole;

[0023] 4 fasteners, 401 block, 402 straight rod, 403 external thread, 404 nut;

[0024] 5 fixing plate, 6 second fixing hole. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] like Figure 1 、 Figure 2 and Figure 3 As shown, the utility model provides a saw head, comprising:

[0027] Saw blade 1, saw blade 1 has a disc structure, and a plurality of first fixing holes 3 are arranged in an array on one side of the saw blade 1, and the first fixing holes 3 have a conical shape. A plurality of second fixing holes 6 are arranged in an array on the other side of the saw blade 1, and the second fixing holes 6 also have a conical shape, and the first fixing holes 3 and the second fixing holes 6 are oriented in opposite directions.

[0028] The rotating shaft 2 has a connecting mechanism provided between the rotating shaft 2 and the saw blade 1 , and the rotating shaft 2 is used to drive the saw blade 1 to rotate.

[0029] The first fixing hole 3 and the second fixing hole 6 arranged oppositely on both sides of the saw blade 1 are two installation methods set on the saw blade 1. When assembling the saw blade 1 and the rotating shaft, the saw blade 1 and the rotating shaft 2 are first connected using the first fixing hole 3 in conjunction with the connecting mechanism.

[0030] During use, when one side of the saw blade 1 is worn and cannot be used, the saw blade 1 is disassembled and separated from the rotating shaft 2 through the connecting mechanism, and then the saw blade 1 is connected to the rotating shaft 2 through the second fixing hole 6 in conjunction with the connecting mechanism, so that the other side of the saw blade 1 can be used to continue working, thereby improving the service life of the saw blade 1.

[0031] In this embodiment, the connecting mechanism includes a fixed plate 5 installed on the rotating shaft 2, a through hole is opened on the fixed plate 5, and a fastener 4 is arranged in the through hole. The fastener 4 is inserted into the through hole and the first fixing hole 3 or the fastener 4 is inserted into the second fixing hole 6 and the through hole, so that the installation direction of the saw blade 1 on the rotating shaft 2 can be changed. When one side of the saw blade 1 is worn, the saw blade 1 can be turned over and combined with the rotating shaft 2, and the other side of the saw blade 1 can continue to be used.

[0032] In this embodiment, referring to Figure 3 and Figure 4 As shown, the fastener 4 includes a straight rod 402, one end of which is connected to a stop block 401, the size of which is larger than the size of the first fixing hole 3 and the second fixing hole 6, and the other end of the straight rod 402 passes through the through hole and is provided with an external thread 403 on its peripheral wall, and a nut 404 is threadedly connected to the external thread 403.

[0033] When installing the saw blade 1 and the fixed plate 5, one end of the straight rod 402 with the external thread 403 passes through the first fixing hole 3 or the second fixing hole 6 at one time, and then passes through the through hole. Thereafter, the nut 404 is threadedly sleeved on the external thread 403, thereby fixing the saw blade 1 and the fixed plate 5 together. Finally, multiple straight rods 402 are installed in turn in the above manner, thereby achieving multi-point connection between the saw blade 1 and the fixed plate 5.

[0034] In this embodiment, the stop block 401 has the same conical shape as the first fixing hole 3 and the second fixing hole 6, and the size of the stop block 401 is comparable to the size of the first fixing hole 3 and the second fixing hole 6. When the stop block 401 is pressed into the first fixing hole 3 or the second fixing hole 6, the side of the saw blade 1 always remains flush.

[0035] In this embodiment, a mounting hole is opened in the middle of the saw blade 1, and the saw blade 1 is sleeved on the rotating shaft 2 through the mounting hole.

[0036] The above embodiments are merely exemplary embodiments of the present application and are not intended to limit the scope of the present application. The scope of protection of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and scope of protection of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the scope of protection of the present application.

Claims

1. A saw blade head, characterized in that: include: A saw blade (1), the saw blade (1) having a disc structure, a plurality of first fixing holes (3) arranged in an array on one side of the saw blade (1), the first fixing holes (3) having a conical shape, a plurality of second fixing holes (6) arranged in an array on the other side of the saw blade (1), the second fixing holes (6) also having a conical shape, and the first fixing holes (3) and the second fixing holes (6) facing in opposite directions; A rotating shaft (2) is provided between the rotating shaft (2) and the saw blade (1), and the rotating shaft (2) is used to drive the saw blade (1) to rotate.

2. A saw blade according to claim 1, characterized in that: The connection mechanism comprises a fixed disk (5) mounted on a rotating shaft (2), a through hole being provided on the fixed disk (5), a fastener (4) being provided in the through hole, and the saw blade (1) is fixedly connected to the fixed disk (5) by inserting the other end of the fastener (4) into the first fixing hole (3) or the second fixing hole (6).

3. A saw blade according to claim 2, characterized in that: The fastener (4) comprises a straight rod (402), one end of the straight rod (402) is connected to a stop block (401), and the size of the stop block (401) is larger than the size of the first fixing hole (3) and the second fixing hole (6); The other end of the straight rod (402) passes through the through hole and is provided with an external thread (403) on the peripheral wall thereof, and a nut (404) is threadedly connected to the external thread (403).

4. A saw blade according to claim 3, characterized in that: The stop block (401) has a conical shape, and the size of the stop block (401) is comparable to the size of the first fixing hole (3) and the second fixing hole (6), so that the side surface of the saw blade (1) always remains flush.

5. The saw blade according to claim 1, characterized in that: A mounting hole is provided in the middle of the saw blade (1), and the saw blade (1) is sleeved on the rotating shaft (2) through the mounting hole.

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