Portable metal band-sawing machine

Abstract

The utility model discloses a portable metal band-sawing machine which comprises a shell, the bottom of the shell is fixedly connected with a suction cup, the top of the shell is fixedly connected with a driving motor, the output end of the driving motor is rotationally connected with the shell, and the lower end of the output end of the driving motor is fixedly connected with a driving wheel. The driving wheel is rotationally connected with the shell through a bearing, and the outer side of the driving wheel is sleeved with a saw blade. Through the design of the driving motor, the driving motor can drive the driving wheel to rotate and can drive the saw blade to rotate under the cooperation of the transmission wheel, namely, the saw blade can be used for cutting, and in the cutting process, the interior of the fixing box can be sucked under the action of the air pump, so that a negative pressure state can be formed in the fixing box; during cutting, cutting chippings and impurities can be sucked along with air through the air inlet, then the chippings are collected on the surface of the filter screen to achieve collection of the cutting chippings, and the problem that the chippings splash and are difficult to clean subsequently is solved.

Description

Technical Field

[0001] This utility model relates to the field of band saw technology, specifically a portable metal band saw. Background Technology

[0002] A band saw is a mechanical device used for cutting various materials. Its working principle involves the band saw blade rotating on a wheel to cut the material. Band saws are commonly used to cut different types of materials such as metal, wood, and plastic, and are characterized by high efficiency, precision, and stability.

[0003] The utility model patent with patent authorization announcement number CN201061837Y discloses an improved design for reducing noise during sawing of a portable metal band saw. The main feature is that the transmission motor of the portable metal band saw is equipped with an adjustable low-speed transmission control by a DC motor, and is assembled with an external independent reduction mechanism, which greatly reduces the speed of the transmission motor during sawing.

[0004] In existing technologies, during the use of portable metal band saws, the rotating saw blade produces shavings that fly everywhere, requiring manual cleaning after cutting and making subsequent collection difficult. Therefore, improvements are needed. Utility Model Content

[0005] The purpose of this invention is to provide a portable metal band saw that solves the problem of inconvenient collection and cleaning of cutting debris.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a portable metal band saw, comprising a housing, a suction cup fixedly connected to the bottom of the housing, a drive motor fixedly connected to the top of the housing, an output end of the drive motor rotatably connected to the housing, a drive wheel fixedly connected to the lower end of the output end of the drive motor, the drive wheel rotatably connected to the housing via a bearing, a saw blade sleeved on the outer side of the drive wheel, a transmission wheel sleeved on the inner side of the other end of the saw blade, the transmission wheel rotatably connected to the housing via a bearing, a fixed box fixedly connected to the upper end of the housing, a collection mechanism provided on the fixed box, and an anti-blocking mechanism provided on the collection mechanism.

[0007] Preferably, there are multiple suction cups, which are evenly distributed on the bottom of the outer casing. By designing the suction cups, the overall structure can be positioned by suction.

[0008] Preferably, the collection mechanism includes an air pump, which is fixedly connected inside the fixed box. The air pump has a suction port on its inner side. A connecting plate is slidably fitted inside the fixed box, and a filter screen is installed inside the connecting plate. A fixed pipe is fixedly connected inside the fixed box, and a connecting seat is fixedly connected to the lower end of the fixed pipe. The connecting seat is fixedly connected to the outer shell, and multiple evenly distributed air inlets are fixedly connected inside the connecting seat. This collection mechanism facilitates the collection of cutting debris.

[0009] Preferably, the air pump has an exhaust port on its outer side, and the exhaust port is fixedly connected to the outer casing. By designing the exhaust port, gas can be discharged from the outer casing.

[0010] Preferably, the anti-clogging mechanism includes a rotating motor. The rotating motor is fixedly connected to the bottom of the inner wall of the fixed box. A connecting strip is fixedly connected to the upper end of the output end of the rotating motor. A top block is fixedly connected to the top of the connecting strip. A protrusion is contacted on the top of the top block. The protrusion is fixedly connected to a connecting plate. A guide rod is slidably sleeved inside the connecting plate. The guide rod is fixedly connected to the fixed box. A support block is fixedly connected to the bottom of the guide rod. The support block is fixedly connected to the fixed box. A first spring and a second spring are provided on the outer side of the guide rod. By designing the anti-clogging mechanism, filter clogging can be prevented.

[0011] Preferably, one end of the first spring is fixedly connected to the connecting plate, and the other end of the first spring is fixedly connected to the fixed box. The first spring is designed so that its force can be applied to the connecting plate.

[0012] Preferably, one end of the second spring is fixedly connected to the connecting plate, and the other end of the second spring is fixedly connected to the support block. By designing the second spring, its force can be applied to the connecting plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model utilizes a drive motor to rotate the drive wheel, which in turn drives the saw blade to rotate with the help of the transmission wheel. This allows for cutting using the saw blade. During the cutting process, the air pump creates a negative pressure inside the fixed box, allowing cutting debris and impurities to be drawn in with the air through the air inlet. The debris is then collected on the filter screen, preventing debris from splashing and becoming difficult to clean later.

[0015] 2. This utility model utilizes the design of a rotating motor to drive the top block to rotate and press the protrusion, which causes the connecting plate to move upward along the guide rod. The connecting plate presses the first spring and stretches the second spring. Under the elastic action of the spring, the filter screen can be shaken vertically during debris collection, thus preventing the filter screen from becoming clogged and affecting air permeability. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of this utility model;

[0017] Figure 2 This utility model Figure 1 A partial three-dimensional sectional view of the structure;

[0018] Figure 3 This utility model Figure 1 A front sectional view of the fixed box;

[0019] Figure 4 This utility model Figure 3 Enlarged view of point A.

[0020] In the diagram: 1. Outer shell; 2. Suction cup; 3. Drive motor; 4. Drive wheel; 5. Saw blade; 6. Transmission wheel; 7. Fixing box; 8. Collection mechanism; 9. Anti-clogging mechanism; 81. Air pump; 82. Exhaust port; 83. Suction port; 84. Connecting plate; 85. Filter screen; 86. Fixing pipe; 87. Connecting seat; 88. Air inlet; 91. Rotating motor; 92. Connecting strip; 93. Top block; 94. Protrusion; 95. Guide rod; 96. Support block; 97. First spring; 98. Second spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1 , Figure 2A portable metal band saw includes a housing 1. Multiple suction cups 2 are fixedly connected to the bottom of the housing 1, evenly distributed on the bottom. The suction cups 2 allow for the adsorption and positioning of the entire structure. A drive motor 3 is fixedly connected to the top of the housing 1, with its output rotatably connected to the housing 1. A drive wheel 4 is fixedly connected to the lower end of the drive motor 3's output, rotatably connected to the housing 1 via bearings. A saw blade 5 is sleeved on the outer side of the drive wheel 4, and a transmission wheel 6 is sleeved on the inner side of the other end of the saw blade 5, rotatably connected to the housing 1 via bearings. A fixed box 7 is fixedly connected to the upper end of the housing 1, with a collection mechanism 8 and an anti-blocking mechanism 9 installed on the collection mechanism 8.

[0023] Please see Figure 1 , Figure 2 , Figure 3 The collection mechanism 8 includes an air pump 81. The air pump 81 is fixedly connected inside the fixed box 7. An exhaust port 82 is provided on the outside of the air pump 81. The exhaust port 82 is fixedly connected to the outer shell 1. By designing the exhaust port 82, gas can be discharged from the outer shell 1. A suction port 83 is provided on the inside of the air pump 81. A connecting plate 84 is slidably sleeved inside the fixed box 7. A filter screen 85 is provided inside the connecting plate 84. A fixed pipe 86 is fixedly connected inside the fixed box 7. A connecting seat 87 is fixedly connected to the lower end of the fixed pipe 86. The connecting seat 87 is fixedly connected to the outer shell 1. Multiple evenly distributed air inlets 88 are fixedly connected inside the connecting seat 87. By designing the collection mechanism 8, it is convenient to collect cutting debris.

[0024] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4The anti-blocking mechanism 9 includes a rotating motor 91. The rotating motor 91 is fixedly connected to the bottom of the inner wall of the fixed box 7. A connecting strip 92 is fixedly connected to the upper end of the output end of the rotating motor 91. A top block 93 is fixedly connected to the top of the connecting strip 92. A protrusion 94 contacts the top of the top block 93. The protrusion 94 is fixedly connected to the connecting plate 84. A guide rod 95 is slidably sleeved inside the connecting plate 84. The guide rod 95 is fixedly connected to the fixed box 7. A support block 96 is fixedly connected to the bottom of the guide rod 95. The support block 96 is fixedly connected to the fixed box 7. A first spring 95 is provided on the outer side of the guide rod 95. 7. One end of the first spring 97 is fixedly connected to the connecting plate 84, and the other end of the first spring 97 is fixedly connected to the fixed box 7. By designing the first spring 97, the force of the first spring 97 can be applied to the connecting plate 84. A second spring 98 is provided on the outside of the guide rod 95. One end of the second spring 98 is fixedly connected to the connecting plate 84, and the other end of the second spring 98 is fixedly connected to the support block 96. By designing the second spring 98, the force of the second spring 98 can be applied to the connecting plate 84. By designing the anti-clogging mechanism 9, the clogging of the filter screen 85 can be prevented.

[0025] The specific implementation process of this utility model is as follows: When in use, start the drive motor 3. The output end of the drive motor 3 drives the drive wheel 4 to rotate. The drive wheel 4 drives the saw blade 5 to rotate. The saw blade 5 drives the transmission wheel 6 to rotate. At this time, the material can be cut by contacting the rotating saw blade 5. During the cutting process, the air pump 81 works at the same time. The air pump 81 draws into the fixed box 7 through the suction port 83, so that the fixed box 7 forms a negative pressure state. Then, it draws through the fixed pipe 86, so that the debris and impurities generated during the cutting process are drawn in through the air inlet 88. The debris enters the fixed box 7 with the gas. Under the action of the filter screen 85, the debris can be filtered. The debris cannot pass through the filter screen 85, while the gas passes through the filter screen 85 and is discharged through the exhaust port 82, avoiding the problem of debris splashing and subsequent cleaning.

[0026] During the debris collection process, the rotating motor 91 works simultaneously. The output end of the rotating motor 91 drives the connecting bar 92 and the top block 93 to rotate. The rotation of the top block 93 will squeeze the protrusion 94, and the protrusion 94 will drive the connecting plate 84 to move upward. The connecting plate 84 slides along the guide rod 95, and the connecting plate 84 squeezes the first spring 97 and stretches the second spring 98. Then the top block 93 rotates and separates from the protrusion 94. Subsequently, under the elastic action of the spring, the connecting plate 84 can shake vertically to prevent the filter screen 85 from being blocked and affecting the air passage.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable metal band saw, comprising a casing (1), characterized in that: A suction cup (2) is fixedly connected to the bottom of the outer shell (1), and a drive motor (3) is fixedly connected to the top of the outer shell (1). The output end of the drive motor (3) is rotatably connected to the outer shell (1). A drive wheel (4) is fixedly connected to the lower end of the output end of the drive motor (3). The drive wheel (4) is rotatably connected to the outer shell (1) through a bearing. A saw blade (5) is sleeved on the outer side of the drive wheel (4). A transmission wheel (6) is sleeved on the inner side of the other end of the saw blade (5). The transmission wheel (6) is rotatably connected to the outer shell (1) through a bearing. A fixed box (7) is fixedly connected to the upper end of the outer shell (1). A collection mechanism (8) is provided on the fixed box (7). An anti-blocking mechanism (9) is provided on the collection mechanism (8).

2. The portable metal band saw according to claim 1, characterized in that: The number of suction cups (2) is multiple, and the multiple suction cups (2) are evenly distributed at the bottom of the outer shell (1).

3. A portable metal band saw according to claim 1, characterized in that: The collection mechanism (8) includes an air pump (81). The air pump (81) is fixedly connected inside the fixed box (7). A suction port (83) is provided on the inner side of the air pump (81). A connecting plate (84) is slidably sleeved inside the fixed box (7). A filter screen (85) is provided inside the connecting plate (84). A fixed pipe (86) is fixedly connected inside the fixed box (7). A connecting seat (87) is fixedly connected to the lower end of the fixed pipe (86). The connecting seat (87) is fixedly connected to the outer shell (1). A plurality of evenly distributed air inlets (88) are fixedly connected inside the connecting seat (87).

4. A portable metal band saw according to claim 3, characterized in that: An exhaust port (82) is provided on the outside of the air pump (81), and the exhaust port (82) is fixedly connected to the outer shell (1).

5. A portable metal band saw according to claim 3, characterized in that: The anti-blocking mechanism (9) includes a rotating motor (91). The rotating motor (91) is fixedly connected to the bottom of the inner wall of the fixed box (7). A connecting strip (92) is fixedly connected to the upper end of the output end of the rotating motor (91). A top block (93) is fixedly connected to the top of the connecting strip (92). A protrusion (94) contacts the top of the top block (93). The protrusion (94) is fixedly connected to the connecting plate (84). A guide rod (95) is slidably sleeved inside the connecting plate (84). The guide rod (95) is fixedly connected to the fixed box (7). A support block (96) is fixedly connected to the bottom of the guide rod (95). The support block (96) is fixedly connected to the fixed box (7). A first spring (97) is provided on the outside of the guide rod (95). A second spring (98) is provided on the outside of the guide rod (95).

6. A portable metal band saw according to claim 5, characterized in that: One end of the first spring (97) is fixedly connected to the connecting plate (84), and the other end of the first spring (97) is fixedly connected to the fixed box (7).

7. A portable metal band saw according to claim 5, characterized in that: One end of the second spring (98) is fixedly connected to the connecting plate (84), and the other end of the second spring (98) is fixedly connected to the support block (96).

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