Portable decorative plate cutting device

Abstract

The utility model relates to a portable decorative plate cutting device. According to the technical scheme, an output shaft of a motor is fixedly sleeved with a baffle ring, the front end of the baffle ring is movably sleeved with a cutting piece, a rotating shaft at the front end of the cutting piece is provided with threads, a fastening nut is screwed on the threads, and a rotating shaft at the rear end of the baffle ring is sleeved with a protective shell assembly which is composed of a semicircular outer shell and a semicircular inner shell. A cutting depth adjusting assembly is arranged on the rear side wall of the semicircular shell and comprises moving columns movably inserted into the left first fixing lug and the right first fixing lug, the upper ends of the left moving column and the right moving column are fixedly connected with the two ends of a connecting piece respectively, an adjusting screw is inserted into a middle screw hole of the connecting piece, and the upper end and the lower end of the adjusting screw are movably sleeved with the second fixing lugs respectively. Limiting rings are fixedly sleeved on the screws above and below the lower second fixing lug respectively, and the lower ends of the left and right moving columns are fixedly connected with the two sides of a U-shaped depth setting block respectively. The cutting knife has the advantages that the cutting blade can be protected conveniently, the carrying safety is improved, and meanwhile the cutting depth can be adjusted conveniently.

Description

Technical Field

[0001] This utility model belongs to the field of sheet metal cutting devices, and relates to a portable decorative sheet metal cutting device. Background Technology

[0002] Decorative panels need to be cut according to the needs of decoration during use. Commonly used cutting tools include cutting machines. Portable cutting machines are often the first choice because they are lightweight and easy to use. However, the protective shell of existing handheld cutting machines is usually fixed in one piece, covering the upper part of the saw blade. During carrying, the lower part of the saw blade is exposed, which can easily damage the saw teeth and cut others. At the same time, it lacks the corresponding depth of cut adjustment components, which makes it easy to damage the pad at the bottom of the board when cutting the board. Therefore, it is inconvenient to use.

[0003] Therefore, this utility model provides a portable decorative panel cutting device to solve the above problems. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model discloses a portable decorative panel cutting device. The technical solution adopted is as follows: A motor is included, a retaining ring is fixedly mounted on the output shaft of the motor, a cutting blade is movably mounted on the front end of the retaining ring, a thread is opened on the rotating shaft at the front end of the cutting blade, a fastening nut is screwed onto the thread, a protective shell assembly is mounted on the rotating shaft at the rear end of the retaining ring, the protective shell assembly includes a semi-circular outer shell with a rear center hole fitted onto the motor rotating shaft, the arc-shaped sidewalls at the left and right ends of the semi-circular outer shell extend downward to form arc-shaped convex walls, a rectangular through groove is opened from the left end to the right end in the middle part of the arc-shaped sidewalls of the semi-circular outer shell, a semi-circular inner shell is movably mounted inside the semi-circular outer shell, the rear center hole of the semi-circular inner shell is fitted onto the rotating shaft in front of the rear center hole of the semi-circular outer shell, the semi-circular inner shell covers the upper half of the cutting blade, and the left end of the arc-shaped sidewall of the semi-circular inner shell... A screw hole is made in the middle part, and a wing screw is screwed into the screw hole. The nut of the wing screw is located outside the rectangular through groove. Connecting posts are fixedly installed on the left and right sides of the lower edge of the rear side wall of the semi-circular shell. The left and right connecting posts are fixedly connected to the front shell of the motor. First fixing ears are fixedly installed on the shells on the left and right sides of the left and right connecting posts. Cutting depth adjustment components are movably inserted into the left and right first fixing ears. The cutting depth adjustment components include movable posts movably inserted into the left and right first fixing ears. The upper ends of the left and right movable posts are fixedly connected to the two ends of the connector. An adjusting screw is inserted into the middle screw hole of the connector. The upper and lower ends of the adjusting screw are movably fitted into the second fixing ears. Limiting rings are fixedly fitted on the screws above and below the lower part of the second fixing ears. The lower ends of the left and right movable posts are fixedly connected to the two sides of the U-shaped fixed depth block.

[0005] As a preferred embodiment of this utility model, the lower second fixing ear is installed on the rear side wall of the semi-circular outer shell above the motor output shaft, and the upper second fixing ear is installed in the middle upper part of the rear side wall of the semi-circular outer shell. By using the upper and lower second fixing ears, it is convenient to limit the upper and lower ends of the adjusting screw. At the same time, the lower second fixing ear is located on the upper part of the motor shaft, which can ensure that the connecting piece can be moved down to the lowest position, thereby increasing the movement range of the U-shaped depth-fixing block on the lower half surface of the cutting blade, and thus increasing the adjustment range of the cutting depth.

[0006] As a preferred embodiment of this utility model, the middle crossbeam of the U-shaped depth block is located in the gap between the front housing of the motor and the rear side wall of the semi-circular outer shell at the lower part of the motor shaft; this design allows the U-shaped depth block to rise to the lower part of the motor shaft, maximizing the adjustment of the cutting depth.

[0007] As a preferred embodiment of this utility model, the two ends of the U-shaped depth block are respectively located on the outer sides of the left and right arc-shaped convex walls; this design avoids interference between the U-shaped depth block and the semi-circular inner shell.

[0008] As a preferred embodiment of this utility model, a bushing is fixedly mounted on the outer casing of the motor, and handle mounting blocks are fixedly provided on the left and right sides of the upper part of the outer side wall of the bushing.

[0009] As a preferred embodiment of this utility model, an arc-shaped handle is installed between the upper ends of the left and right handle mounting blocks, and a button switch is provided on the upper side of the left end of the arc-shaped handle; by providing a button switch on the arc-shaped handle, it is convenient to quickly control the device and improve the ease of use.

[0010] The beneficial effects of this utility model are as follows: By setting a protective shell assembly around the cutting disc, which consists of a semi-circular outer shell and a semi-circular inner shell, loosening the wing screw and rotating it 180 degrees clockwise along the arc-shaped side wall of the semi-circular outer shell before tightening it, the semi-circular inner shell can cover the lower half of the cutting disc, thereby quickly achieving closed protection of the cutting disc. This effectively avoids the risk of the cutting disc cutting others during carrying and reduces the risk of damage to the cutting disc's teeth, improving safety during carrying. At the same time, a cutting depth adjustment assembly is set on the rear side of the semi-circular outer shell. By rotating the adjustment screw, the connecting piece and the moving columns on both sides can be moved up and down, thereby moving the U-shaped depth-fixing block at the lower end up and down around the lower half of the cutting disc, thus flexibly adjusting the cutting depth and improving the convenience of use. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0013] Figure 3 This is a cross-sectional view of the protective shell assembly of this utility model;

[0014] Figure 4 This is a schematic diagram of the rear side of the protective shell assembly and the cutting depth adjustment assembly of this utility model.

[0015] In the diagram: 1-Motor, 2-Protective housing assembly, 3-Depth of cut adjustment assembly, 4-Sleeve, 5-Arc-shaped handle, 6-Button switch, 11-Retaining ring, 12-Cutting disc, 13-Fasting nut, 21-Semi-circular outer shell, 211-Arc-shaped convex wall, 212-Rectangular through slot, 22-Semi-circular inner shell, 23-Wing screw, 24-Connecting post, 25-First fixing ear, 26-Second fixing ear, 31-Moving post, 32-Connector, 33-Adjusting screw, 331-Limiting ring, 34-U-shaped depth block, 41-Handle mounting block. Detailed Implementation

[0016] Example 1

[0017] like Figures 1 to 4As shown, the portable decorative panel cutting device of this utility model adopts the following technical solution: It includes a motor 1, the rear end of which is powered by an external power source. A retaining ring 11 is fixedly mounted on the output shaft of the motor 1. A cutting blade 12 is movably mounted on the front end of the retaining ring 11. The rotating shaft at the front end of the cutting blade 12 is threaded, and a fastening nut 13 is screwed onto the thread. A protective shell assembly 2 is mounted on the rotating shaft at the rear end of the retaining ring 11. The protective shell assembly 2 includes a semi-circular outer shell 21 with a rear center hole fitted onto the motor shaft. The arc-shaped sidewalls at the left and right ends of the semi-circular outer shell 21 extend downwards to form arc-shaped convex walls 211. The middle part of the arc-shaped sidewalls of the semi-circular outer shell 21 extends from the left end to the right end... A rectangular through slot 212 is formed, and a semi-circular inner shell 22 is movably fitted inside the semi-circular outer shell 21. The rear center hole of the semi-circular inner shell 22 is fitted onto the rotating shaft in front of the rear center hole of the semi-circular outer shell 21. The semi-circular inner shell 22 covers the upper half of the cutting blade 12. A screw hole is formed at the middle of the left end of the arc-shaped sidewall of the semi-circular inner shell 22, and a wing screw 23 is screwed into the screw hole. The nut of the wing screw 23 is located outside the rectangular through slot 212. Connecting posts 24 are fixedly installed on the left and right sides of the lower edge of the rear sidewall of the semi-circular outer shell 21, respectively. The left and right connecting posts 24 are fixedly connected to the front end shell of the motor 1, respectively. The shells on the left and right sides of the left and right connecting posts 24 are respectively fixed. A first fixing ear 25 is fixedly provided, and a cutting depth adjustment component 3 is movably inserted into the left and right first fixing ears 25. The cutting depth adjustment component 3 includes a movable column 31 movably inserted into the left and right first fixing ears 25. The upper ends of the left and right movable columns 31 are respectively fixedly connected to the two ends of the connector 32. An adjusting screw 33 is inserted into the middle screw hole of the connector 32. The upper and lower ends of the adjusting screw 33 are respectively movably fitted into the second fixing ears 26. The lower second fixing ear 26 is installed on the rear side wall of the semi-circular outer shell above the output shaft of the motor 1. The upper second fixing ear 26 is installed on the upper middle part of the rear side wall of the semi-circular outer shell 21. The screws on the upper and lower ends of the lower second fixing ear 26 are respectively fixed. The fixed fitting limit ring 331 is fixedly connected to the lower ends of the left and right moving columns 31 respectively, and the middle crossbeam of the U-shaped depth block 34 can rise to the gap between the front housing of the motor 1 and the rear side wall of the semi-circular outer shell 21 at the lower part of the motor 1 shaft. The two ends of the U-shaped depth block 34 are respectively set on the outer side of the left and right arc-shaped convex walls 211. The bushing 4 is fixedly fitted on the outer shell of the motor 1. The left and right sides of the upper part of the outer side wall of the bushing 4 are respectively fixedly fitted with handle mounting blocks 41. The upper ends of the left and right handle mounting blocks 41 are installed between the upper ends of the left and right handles 5. A button switch 6 is opened on the upper left side of the arc-shaped handle 5. The button switch 6 is electrically connected to the motor 1.

[0018] The working principle of this utility model is as follows: During use, the wire on the rear side of the motor 1 is connected to an external power source. During cutting, the adjusting screw 33 can be rotated according to the required cutting depth. The adjusting screw 33 drives the connecting piece 32 mounted on it to move up and down along the rear wall of the semi-circular outer shell 21, thereby moving the moving columns 31 on both sides and the U-shaped depth-fixing block 34 at the lower end up and down. This adjusts the depth of the exposed cutting blade 12 at the lower part of the U-shaped depth-fixing block 34, achieving the purpose of adjusting the cutting depth. After the cutting depth adjustment is completed, the button switch 6 on the arc-shaped handle 5 is pressed to start the motor. 1. The motor 1 drives the cutting blade 12 to rotate, thereby completing the cutting of the decorative panel. During the carrying process, the wing screw 23 can be loosened and rotated 180 degrees clockwise along the arc-shaped side wall of the semi-circular outer shell 21, and the semi-circular inner shell 22 can be rotated 180 degrees to cover the lower half of the cutting blade 12. Then, the wing screw 23 is tightened to fix the semi-circular inner shell 22 and the semi-circular inner shell 21. The semi-circular inner shell 22 and the semi-circular inner shell 21 completely enclose the cutting blade 12 inside, preventing the saw teeth from damaging or cutting others during the carrying process.

[0019] Electrical connection methods or structures not described in detail in this article are existing technologies.

[0020] While the specific embodiments of this utility model have been described in detail above, this 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 this utility model. Modifications or variations that do not involve creative labor are still within the protection scope of this utility model.

Claims

1. A portable decorative panel cutting device, comprising a motor (1), wherein a retaining ring (11) is fixedly mounted on the output shaft of the motor (1), a cutting blade (12) is movably mounted on the front end of the retaining ring (11), and the rotating shaft at the front end of the cutting blade (12) is threaded, and a fastening nut (13) is screwed onto the thread, characterized in that: A protective shell assembly (2) is fitted onto the rotating shaft at the rear end of the retaining ring (11). The protective shell assembly (2) includes a semi-circular outer shell (21) fitted onto the motor rotating shaft with a central hole at the rear end. The arc-shaped sidewalls at the left and right ends of the semi-circular outer shell (21) extend downward to form arc-shaped convex walls (211). A rectangular through groove (212) is opened from the left end to the right end in the middle part of the arc-shaped sidewall of the semi-circular outer shell (21). A semi-circular inner shell (22) is movably fitted inside the semi-circular outer shell (21). The rear center hole of the semicircular inner shell (22) is fitted onto the pivot on the front side of the rear center hole of the semicircular outer shell (21). The semicircular inner shell (22) covers the upper half of the cutting blade (12). A screw hole is opened at the middle part of the left end of the arc-shaped sidewall of the semicircular inner shell (22). A wing screw (23) is screwed into the screw hole. The nut of the wing screw (23) is located outside the rectangular through groove (212). The lower side of the rear sidewall of the semicircular outer shell (21) Connecting posts (24) are fixedly installed on the left and right sides of the edge, respectively. The left and right connecting posts (24) are fixedly connected to the front end housing of the motor (1). First fixing ears (25) are fixedly installed on the housings on the left and right sides of the connecting posts (24). Cutting depth adjustment components (3) are movably inserted into the left and right first fixing ears (25). The cutting depth adjustment components (3) include moving posts (31) movably inserted into the left and right first fixing ears (25). The upper ends of the left and right moving posts (31) are fixedly connected to the two ends of the connector (32). The middle screw hole of the connector (32) is inserted with an adjusting screw (33). The upper and lower ends of the adjusting screw (33) are movably fitted into the second fixing ears (26). Limiting rings (331) are fixedly fitted on the screws on the upper and lower parts of the second fixing ears (26). The lower ends of the left and right moving posts (31) are fixedly connected to the two sides of the U-shaped fixed depth block (34).

2. The portable decorative panel cutting device according to claim 1, characterized in that: The lower second fixing ear (26) is installed on the rear side wall of the semi-circular housing above the output shaft of the motor (1), and the upper second fixing ear (26) is installed in the middle upper part of the rear side wall of the semi-circular housing (21).

3. The portable decorative panel cutting device according to claim 1, characterized in that: The middle crossbeam of the U-shaped fixed-depth block (34) is located in the gap between the front housing of the motor (1) and the rear side wall of the semi-circular outer shell (21) at the lower part of the motor (1) shaft.

4. The portable decorative panel cutting device according to claim 1, characterized in that: The two ends of the U-shaped depth block (34) are respectively located on the outer sides of the left and right arc-shaped convex walls (211).

5. The portable decorative panel cutting device according to claim 1, characterized in that: A bushing (4) is fixedly mounted on the outer casing of the motor (1), and handle mounting blocks (41) are fixedly mounted on the left and right sides of the upper part of the outer side wall of the bushing (4).

6. A portable decorative panel cutting device according to claim 5, characterized in that: An arc-shaped handle (5) is installed between the upper ends of the left and right handle mounting blocks (41), and a button switch (6) is opened on the upper side of the left end of the arc-shaped handle (5).

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