CN209986336U - Circular saw - Google Patents
Circular saw Download PDFInfo
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- CN209986336U CN209986336U CN201920323493.0U CN201920323493U CN209986336U CN 209986336 U CN209986336 U CN 209986336U CN 201920323493 U CN201920323493 U CN 201920323493U CN 209986336 U CN209986336 U CN 209986336U
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- circular saw
- saw blade
- guide pipeline
- base
- shield
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Abstract
The utility model discloses a circular saw, which comprises a base, a circular saw blade and a saw blade shield; the base is provided with saw blade slotted holes in the front-back direction; the circular saw blade passes through the saw blade slotted hole and is fixed on the base in a pivoting manner through the driving shaft in the left-right direction; the saw blade shield is coated on the peripheral surface of the upper part of the circular saw blade and the left side surface and the right side surface of the upper part of the circular saw blade; a scrap guide pipeline which tangentially surrounds the outer peripheral surface of the upper part of the circular saw blade is formed in the saw blade shield; the front end opening of the scrap guide pipeline is positioned at the junction of the circular saw blade and the front side base; the rear end opening of the scrap guide pipeline is positioned on the rear side of the circular saw blade and above the base. The utility model discloses the annular saw of deciding makes the smear metal collect the cleaning work and becomes simple safety, and the flow orbit of smear metal is controlled, and the smear metal can not splash away, can not be detained inside the annular saw yet, can provide good operational environment for the annular saw operator.
Description
Technical Field
The utility model relates to a saw, in particular to circular saw.
Background
Circular saws, one of the most common tools used in construction sites and home furnishings, can be used to cut wood, metal, plastic products, and the like. The cutting machine generates a large amount of cutting chips, and if the cutting chips are not collected, the cutting machine is extremely unfavorable for operators and working environment.
The common circular saw rebounds and falls after chips impact the inner wall of the protective cover, and can directly fall on a workpiece or a bottom base or splash away.
At present, the collection of the chips on the market is concentrated on the treatment after the chips fly out of a chip outlet of a machine, a dust collector or a dust collecting device is mainly connected to the rear end of the circular saw, however, the flowing track of the chips is not controlled, and part of the chips are difficult to fly out of the chip outlet and can be retained in the circular saw.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a circular saw, make the smear metal collect the cleaning work and become simple safety, the flow orbit of smear metal is controlled, and the smear metal can not splash away, can not be detained inside the circular saw yet, can provide good operational environment for the circular saw operator.
In order to solve the technical problem, the circular saw provided by the utility model comprises a base 1, a circular saw blade 2 and a saw blade shield 3;
the base 1 is provided with saw blade slotted holes in the front-back direction;
the circular saw blade 2 passes through the saw blade slotted hole and is fixed on the base 1 in a pivoting way through a driving shaft 9 in the left-right direction;
the saw blade shield 3 is coated on the peripheral surface of the upper part and the left and right side surfaces of the upper part of the circular saw blade 2;
a scrap guide pipe 30 which tangentially surrounds the outer peripheral surface of the upper part of the circular saw blade 2 is formed in the saw blade shield 3;
the front end opening 31 of the scrap guide pipeline 30 is positioned at the junction of the circular saw blade 2 and the front side base 1;
the rear end opening 32 of the scrap guide duct 30 is positioned on the rear side of the circular saw blade 2 and above the base 1.
Preferably, the circular saw further comprises dust collecting means 4;
the air inlet of the dust collecting device 4 is communicated with the rear end opening 32 of the dust guide pipeline 30.
Preferably, the circular saw further comprises a motor 5;
the motor 5 is used for driving the driving shaft 9 to rotate, thereby driving the circular saw blade 2 to rotate.
Preferably, the motor 5 drives the drive shaft 9 to rotate, either directly or through a gear assembly.
Preferably, the motor 5 and the dust collecting device 4 are both fixed on the base 1, the motor is positioned at the left side of the circular saw blade, and the dust collecting device is positioned above the rear part of the circular saw blade.
Preferably, the front end of the scrap guide pipeline 30 is provided with a groove on the pipe wall close to the side of the circular saw blade 2;
the saw teeth of the circular saw blade 2 penetrate into the front end opening 31 of the chip guide pipe 30 through the slots.
Preferably, the surface of the front opening 31 of the chip guide pipe 30 is tangent to the outer circle of the circular saw blade 2.
Preferably, the blade guard 3 is composed of a left guard 37 and a right guard 38;
the left shroud 37 contains a left half-open chip guide tube 371;
the right shroud 38 contains a right half-open chip duct 381;
the left half chip guide tube 371 and the right half chip guide tube 381 are buckled together to form a chip guide tube 30 with two open ends.
Preferably, the chip duct 30 comprises at least two parallel sub-channels.
Preferably, the inner wall of the scrap guiding pipe 30 is a smooth surface;
the saw blade shield 3 is made of metal or plastic.
The utility model discloses a circular saw has the collection dirt function, and the smear metal just gets into the chip guide pipeline 30 from forming the smear metal stream, and the smear metal can only move at chip guide pipeline 30 and get into dust collecting device from its rear end opening 32 play bits mouth, makes the smear metal collect the cleaning work and becomes simple safety, and the flow orbit of smear metal is controlled, and the smear metal can not splash away, can not be detained inside the circular saw yet, can provide good operational environment for the circular saw operator.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings required for the present invention are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a perspective view of a circular saw according to an embodiment of the present invention;
FIG. 2 is a schematic view of a scrap guide duct according to an embodiment of the circular saw of the present invention;
FIG. 3 is an exploded view of a blade guard of an embodiment of the circular saw of the present invention.
The reference numbers in the figures illustrate:
1, a base; 2 a circular saw blade; 3 saw blade shield; 30 a scrap guide pipeline; 31 front end opening; 32 rear end opening; 37 a left shield; 371 left half-open chip guide pipe; 38 a right shield; 381 right half-open chip guide duct; 4 dust collecting means; 5, a motor; 8, workpiece; 9 drive the shaft.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments, but not all embodiments, of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Example one
As shown in fig. 1, 2 and 3, the circular saw includes a base 1, a circular saw blade 2 and a blade guard 3;
the base 1 is provided with saw blade slotted holes in the front-back direction;
the circular saw blade 2 passes through the saw blade slotted hole and is fixed on the base 1 in a pivoting way through a driving shaft 9 in the left-right direction;
the saw blade shield 3 is coated on the peripheral surface of the upper part and the left and right side surfaces of the upper part of the circular saw blade 2;
a scrap guide pipe 30 which tangentially surrounds the outer peripheral surface of the upper part of the circular saw blade 2 is formed in the saw blade shield 3;
the front end opening 31 of the scrap guide pipeline 30 is positioned at the junction of the circular saw blade 2 and the front side base 1;
the rear end opening 32 of the scrap guide duct 30 is positioned on the rear side of the circular saw blade 2 and above the base 1.
Preferably, the circular saw further comprises dust collecting means 4;
the air inlet of the dust collecting device 4 is communicated with the rear end opening 32 of the dust guide pipeline 30.
Preferably, the circular saw further comprises a motor 5;
the motor 5 is used for driving the driving shaft 9 to rotate, thereby driving the circular saw blade 2 to rotate.
Preferably, the motor 5 drives the drive shaft 9 to rotate, either directly or through a gear assembly.
Preferably, the motor 5 and the dust collecting device 4 are both fixed on the base 1, the motor is positioned at the left side of the circular saw blade, and the dust collecting device is positioned above the rear part of the circular saw blade.
In the circular saw of the first embodiment, the saw blade guard 3 is provided with a chip guide pipeline 30 tangential to the outer peripheral surface of the upper part of the circular saw blade 2, the front end opening 31 of the chip guide pipeline 30 is used as a chip inlet and is positioned at the junction of the circular saw blade 2 and the front side base 1 and is infinitely close to the starting point of chip flow formed by cutting a workpiece 8 by the circular saw, and the rear end opening 32 of the chip guide pipeline 30 is used as a chip outlet; the motor 5 drives the circular saw blade 2 to rotate to cut the workpiece 8 to generate cutting chips, and the cutting chips form a cutting chip flow at the junction of the circular saw blade 2 and the front side base 1 and enter the chip guide pipeline 30. Most of the chips C2 directly enter the chip guide pipe 30, pass through the rear end opening 32 and enter the dust collecting device 4, a small part of the slow-speed chips C1 hit the inner wall of the chip guide pipe 30 and rebound, the traveling direction similar to that of the most of the chips C2 is maintained during rebound and is wrapped by the most of the chips C2, finally, the chips C1 enter the dust collecting device 4 through the rear end opening 32, and the other part of the light chips C3 are cut by the circular saw blade 2, so that the kinetic energy is not enough to reach the rear end opening 32 and enter the dust collecting device 4, but because the most of the chips C2 fly in the chip guide pipe 30 with limited space to form air flows W1, the air flows not only help the slow-speed chips C1 in the passage to enter the dust collecting device 4, but also can completely help the light chips C3 to obtain enough kinetic energy again to continue flying in the chip guide pipe 30 and enter. The circular saw of the first embodiment has a dust collecting function, chips enter the chip guide pipeline 30 from the beginning of forming a chip flow, the chips can only run in the chip guide pipeline 30 and enter the dust collecting device from the chip outlet 32 at the rear end of the chip guide pipeline, so that the chip collecting and cleaning work becomes simple and safe, the flowing track of the chips is controlled, the chips cannot splash out, the chips cannot be retained inside the circular saw, and a good working environment can be provided for a circular saw operator.
Example two
Based on the circular saw in the first embodiment, the pipe wall of the front end of the scrap guide pipe 30, which is close to the circular saw blade 2 side, is grooved;
the saw teeth of the circular saw blade 2 penetrate into the front end opening 31 of the chip guide pipe 30 through the slots.
In the circular saw of the second embodiment, a portion of the saw teeth of the circular saw blade 2 are located in the chip guide duct 30 at a position where the chip flow is formed above the initial cutting point, thereby ensuring that the chips directly and smoothly enter the chip guide duct 30 to the maximum extent.
EXAMPLE III
According to the circular saw of the first embodiment, the surface of the front opening 31 of the chip guide pipe 30 is tangent to the outer circle of the circular saw blade 2.
In the circular saw of the third embodiment, the chip inlet of the chip guide pipeline 30 is tangent to the excircle of the circular saw blade 2, so that chips can directly and smoothly enter the chip guide pipeline 30 to the maximum extent.
Example four
According to the circular saw of the first embodiment, the blade guard 3 is composed of a left guard 37 and a right guard 38;
the left shroud 37 contains a left half-open chip guide tube 371;
the right shroud 38 contains a right half-open chip duct 381;
the left half chip guide tube 371 and the right half chip guide tube 381 are buckled together to form a chip guide tube 30 with two open ends.
EXAMPLE five
Based on the circular saw of the first embodiment, the chip guide pipe 30 comprises at least two parallel sub-channels, and the effect of the closed channel is also achieved, so that the chip running direction is not influenced, the production is convenient, and the cost can be reduced.
EXAMPLE six
Based on the circular saw in the first embodiment, the inner wall of the chip guide pipe 30 is a smooth surface.
Preferably, the blade guard 3 is made of metal or wear-resistant plastic (e.g., polyamide imide (PAI), polyether ether ketone (PEEK), Polyoxymethylene (POM), etc.).
In the circular saw of the sixth embodiment, the inner wall of the chip guide pipeline 30 of the saw blade shield 3 is a smooth surface, so that the air flow loss can be reduced, the loss caused by the friction of chips entering the chip guide pipeline 30 can be reduced, and the chips can pass through the chip guide pipeline smoothly; the saw blade shield 3 is also wear-resistant, so that chips (such as sawdust and metal chips) made of various materials can be rubbed for a long time without a gap, and the service life is prolonged.
The above are merely preferred embodiments of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A circular saw is characterized by comprising a base (1), a circular saw blade (2) and a saw blade shield (3);
the base (1) is provided with saw blade slotted holes in the front-back direction;
the circular saw blade (2) passes through the saw blade slotted hole and is pivotally fixed on the base (1) through a driving shaft (9) in the left-right direction;
the saw blade shield (3) is coated on the peripheral surface of the upper part and the left and right side surfaces of the upper part of the circular saw blade (2);
a scrap guide pipeline (30) which tangentially surrounds the outer peripheral surface of the upper part of the circular saw blade (2) is formed in the saw blade shield (3);
the front end opening (31) of the scrap guide pipeline (30) is positioned at the junction of the circular saw blade (2) and the front side base (1);
the rear end opening (32) of the scrap guide pipeline (30) is positioned on the rear side of the circular saw blade (2) and above the base (1).
2. The circular saw of claim 1,
the circular saw also comprises a dust collecting device (4);
the air inlet of the dust collecting device (4) is communicated with the rear end opening (32) of the scrap guide pipeline (30).
3. The circular saw of claim 1,
the circular saw also comprises a motor (5);
the motor (5) is used for driving the driving shaft (9) to rotate, so that the circular saw blade (2) is driven to rotate.
4. The circular saw of claim 3,
the motor (5) drives the driving shaft (9) to rotate directly or through a gear assembly.
5. The circular saw of claim 4,
motor (5) and dust collecting device (4) are all fixed on base (1) to the motor is located the left side of circular saw blade, and dust collecting device is located the rear portion top of circular saw blade.
6. The circular saw of claim 1,
the pipe wall at the front end of the scrap guide pipeline (30) close to the side of the circular saw blade (2) is grooved;
the sawteeth of the circular saw blade (2) penetrate into the front end opening (31) of the scrap guide pipeline (30) through the grooves.
7. The circular saw of claim 1,
the surface of the front end opening (31) of the scrap guide pipeline (30) is tangent to the excircle of the circular saw blade (2).
8. The circular saw of claim 1,
the saw blade shield (3) consists of a left shield (37) and a right shield (38);
the left shield (37) comprises a left half-open chip guide pipeline (371);
the right shroud (38) comprises a right half-open chip duct (381);
the left half-open chip guide pipeline (371) and the right half-open chip guide pipeline (381) are buckled together to form a chip guide pipeline (30) with two open ends.
9. The circular saw of claim 1,
the chip guide duct (30) comprises at least two parallel sub-channels.
10. The circular saw of claim 1,
the inner wall of the scrap guide pipeline (30) is a smooth surface;
the saw blade shield (3) is made of metal or plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920323493.0U CN209986336U (en) | 2019-03-14 | 2019-03-14 | Circular saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920323493.0U CN209986336U (en) | 2019-03-14 | 2019-03-14 | Circular saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209986336U true CN209986336U (en) | 2020-01-24 |
Family
ID=69289440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920323493.0U Active CN209986336U (en) | 2019-03-14 | 2019-03-14 | Circular saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209986336U (en) |
-
2019
- 2019-03-14 CN CN201920323493.0U patent/CN209986336U/en active Active
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