Sanding machine with dust collection optimized balance structure

Abstract

The utility model belongs to the technical field of sanding machines, and particularly relates to a sanding machine with a dust collection optimized balance structure. The sanding machine with the dust collection optimized balance structure comprises a blade plate arranged on a rotating shaft penetrating into a circular-truncated-cone-shaped concave part, and a plurality of upper fins are evenly arranged on the upper surface of the blade plate in the circumferential direction; a plurality of lower long fins are evenly arranged on the lower surface of the blade plate along the major arc, and a plurality of lower short fins are evenly arranged on the lower surface of the blade plate along the minor arc. The angle of the fan-shaped balance block is matched with the minor arc, and when the fan-shaped balance block is pressed against the lower surface of the blade plate, the fan-shaped balance block abuts against the lower long fins on the two sides for limiting. According to the sander with the dust collection optimized balance structure, the fan-shaped balance blocks can abut against the lower surfaces of the blade plates, it can be guaranteed that the fins are distributed on the lower surfaces of the blade plates in the whole circumferential direction, when the blade plates rotate along with the rotating shaft, continuous airflow is kept, and the problem that suction force is suddenly weakened during dust collection is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sanding machines, and in particular relates to a sanding machine with a dust suction optimization balance structure. Background Art

[0002] The sanding machine achieves the grinding function by making the base plate rotate eccentrically, so it will generate a large eccentric force when working. If this eccentric force is not balanced, the overall vibration of the sanding machine will be large, affecting its service life. Therefore, a balance block is currently used for balancing.

[0003] The method of setting the balancing block in the publication (announcement) No. CN220408370U is to first set a balancing block installation position on the lower surface of the fan blade, and then press the balancing block on the balancing block installation position through the pressing block part. In this way, in order to open the balancing block installation position on the lower surface of the fan blade, it is necessary to give up processing space, so as shown in the attached Figure 1 and attached Figure 2 As shown, the fins on the lower surface of the fan blade are incomplete, which reduces the dust collection effect of the sander. Utility Model Content

[0004] The utility model aims to provide a sanding machine with a dust suction optimization balance structure to solve the technical problem that the dust suction effect of the existing sanding machine is reduced due to the balancing block occupying the fin space of the fan blade.

[0005] In order to solve the above technical problems, the utility model provides a sanding machine with a dust suction optimized balance structure, including: a casing, the bottom of which is concave to form a truncated cone-shaped recess; a dust outlet is opened on the side wall of the truncated cone-shaped recess; a blade plate, which is arranged on a rotating shaft penetrating into the truncated cone-shaped recess; the upper surface of the blade plate is evenly provided with a plurality of upper fins along the circumferential direction; the lower surface of the blade plate is evenly provided with a plurality of lower long fins along the major arc, and a plurality of lower short fins along the minor arc; a fan-shaped balance block, the angle of which is adapted to the minor arc, and when pressed against the lower surface of the blade plate, it is limited by the lower long fins on both sides.

[0006] Furthermore, the blade plate is flush with the upper edge of the dust outlet.

[0007] Furthermore, the angle of the major arc is 260° to 280°.

[0008] Furthermore, the angle of the major arc is 270°.

[0009] Furthermore, an eccentric seat is provided on the rotating shaft; one end of the sector-shaped balancing block is sleeved on the rotating shaft, and the sector-shaped balancing block is pressed against the lower surface of the blade plate by the eccentric seat.

[0010] Furthermore, a bearing seat is sleeved on the eccentric seat; a pressure plate is provided on the bottom surface of the bearing seat; a perforated bottom plate is provided on the bottom surface of the pressure plate; and a brake pad is provided between the perforated bottom plate and the truncated cone-shaped recess.

[0011] The beneficial effect of the utility model is that the utility model aims to solve the technical problem that the dust suction effect of the existing sanding machine is reduced due to the balancing block occupying the fin space of the fan blade. The blade plate of the sanding machine with a dust suction optimized balance structure is arranged on the rotating shaft, and the upper surface of the blade plate is provided with an upper fin, and the lower surface of the blade plate is evenly provided with a lower long fin along the superior arc, and the lower surface of the blade plate is evenly provided with a lower short fin along the inferior arc, so that the fan-shaped balancing block can be pressed against the lower surface of the blade plate, and the fins can be ensured to be arranged on the entire circumference of the lower surface of the blade plate. When the blade plate rotates with the rotating shaft, a continuous airflow is maintained, and the problem of sudden weakening of suction will not occur during dust suction. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the prior descriptions will be briefly introduced below. Obviously, the drawings in the following description are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 This is a schematic diagram of the structure of the sanding machine with dust collection optimization balance structure of the utility model. Figure 1 ;

[0014] Figure 2 It is an exploded view of the sanding machine with a dust suction optimized balance structure of the utility model;

[0015] Figure 3 It is a cross-sectional view of the sanding machine with a dust collection optimized balance structure of the utility model;

[0016] Figure 4 It is a bottom view of the blade plate of the sanding machine with the dust suction optimized balance structure of the utility model;

[0017] Figure 5 It is a top view of the blade plate of the sanding machine with the dust suction optimized balance structure of the utility model;

[0018] In the figure:

[0019] The housing 100, the truncated cone-shaped recess 110;

[0020] Dust outlet 200;

[0021] Blade plate 300, upper fin 310, lower long fin 321, lower short fin 322;

[0022] Rotating shaft 400;

[0023] Sector balancing weight 500;

[0024] Eccentric seat 600;

[0025] Bearing seat 720, pressure plate 730, perforated bottom plate 740, brake pad 750. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments of ordinary technicians in this field without creative work are within the protection scope of the utility model.

[0027] Example

[0028] like Figure 1 As shown, the utility model provides a sanding machine with a dust collection optimized balance structure, comprising: a housing 100, the bottom of which is concave to form a truncated cone-shaped recess 110; Figure 2 As shown, the side wall of the truncated cone-shaped recess 110 is provided with a dust outlet 200; a blade plate 300 is arranged on a rotating shaft 400 penetrating into the truncated cone-shaped recess 110; Figure 5 The upper surface of the blade plate 300 is evenly provided with a plurality of upper fins 310 along the circumferential direction; Figure 4 The lower surface of the blade plate 300 is evenly provided with a plurality of lower long fins 321 along the major arc, and a plurality of lower short fins 322 along the minor arc; the fan-shaped balance block 500 has an angle adapted to the minor arc, and when pressed against the lower surface of the blade plate 300, it is limited by the lower long fins 321 on both sides.

[0029] The blade plate 300 of the sanding machine with the dust suction optimized balance structure is arranged on the rotating shaft 400, and the upper surface of the blade plate 300 is provided with an upper fin 310, and the lower surface of the blade plate 300 is evenly provided with lower long fins 321 along the major arc, and evenly provided with lower short fins 322 along the minor arc, so that the fan-shaped balance block 500 can be pressed against the lower surface of the blade plate 300, and the fins can be arranged on the entire circumference of the lower surface of the blade plate 300. When the blade plate 300 rotates with the rotating shaft 400, a continuous airflow is maintained, and the problem of sudden weakening of suction will not occur during dust suction.

[0030] like Figure 3As shown, the blade plate 300 is flush with the upper edge of the dust outlet 200, so that the airflow generated by the upper fins 310 on the upper surface of the blade plate 300 is downwardly merged into the airflow generated by the lower long fins 321 and the lower short fins 322 on the lower surface of the blade plate 300, and directly enters the dust outlet 200 together, so that the airflow can enter the dust outlet 200 more smoothly.

[0031] like Figure 4 As shown, the angle of the major arc can be 260° to 280°, so as to ensure that the airflow generated by the lower long fins 321 and the lower short fins 322 on the lower surface of the blade plate 300 is relatively continuous and stable.

[0032] In at least one embodiment, the angle of the major arc is 270°, and correspondingly, the angle of the minor arc is 90°.

[0033] like Figure 2 As shown, the rotating shaft 400 is provided with an eccentric seat 600; Figure 4 One end of the fan-shaped balancing block 500 is sleeved on the rotating shaft 400, and the fan-shaped balancing block 500 is pressed against the lower surface of the blade plate 300 by the eccentric seat 600, and at this time, the fan-shaped balancing block 500 is limited against the lower long fins 321 on both sides, so that the fan-shaped balancing block 500 is firmly fixed on the lower surface of the blade plate 300 and is not easy to deviate.

[0034] like Figure 2 As shown, the eccentric seat 600 is sleeved with a bearing seat 720, and a bearing is arranged in the bearing seat 720; the bottom surface of the bearing seat 720 is provided with a pressing plate 730; the bottom surface of the pressing plate 730 is provided with a perforated bottom plate 740, combined with Figure 3 , a brake pad 750 is provided between the perforated bottom plate 740 and the truncated cone-shaped recess 110. When the rotating shaft 400 drives the eccentric seat 600, it drives the perforated bottom plate 740 for grinding, and the rotating shaft 400 also drives the blade plate 300 to generate airflow, thereby sucking dust through the through holes on the perforated bottom plate 740, and the brake pad 750 also plays a sealing role in this process. It should be noted that Figure 1 and Figure 2 The brake pads 750 are hidden in the Figure 3 There are no hidden brake pads in the 750.

[0035] In summary, the blade plate 300 of the sanding machine with a dust suction optimized balance structure is arranged on the rotating shaft 400, and the upper surface of the blade plate 300 is provided with an upper fin 310, and the lower surface of the blade plate 300 is evenly provided with lower long fins 321 along the major arc, and evenly provided with lower short fins 322 along the minor arc, so that the fan-shaped balance block 500 can be pressed against the lower surface of the blade plate 300, and the fins can be arranged on the entire circumference of the lower surface of the blade plate 300. When the blade plate 300 rotates with the rotating shaft 400, a continuous airflow is maintained, and the problem of sudden weakening of suction will not occur during dust suction.

[0036] In the embodiments provided in this application, it should be understood that the disclosed systems and devices can be implemented in other ways. The embodiments described above are only exemplary. For example, the division of the mechanism is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed.

[0037] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0038] Based on the above ideal embodiments of the utility model, through the above description, relevant technicians can make various changes and modifications without departing from the technical concept of the utility model. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A sanding machine with a dust collection optimized balance structure, characterized in that: include: The housing (100) has a concave bottom to form a truncated cone-shaped recess (110); A dust outlet (200) is provided on the side wall of the truncated cone-shaped recess (110); A blade plate (300) is arranged on a rotating shaft (400) that penetrates into the truncated cone-shaped recess (110); The upper surface of the blade plate (300) is evenly provided with a plurality of upper fins (310) along the circumferential direction; The lower surface of the blade plate (300) is evenly provided with a plurality of lower long fins (321) along the major arc, and evenly provided with a plurality of lower short fins (322) along the minor arc; The fan-shaped balancing block (500) has an angle adapted to the inferior arc, and when pressed against the lower surface of the blade plate (300), it abuts against the lower long fins (321) on both sides to limit position.

2. The sanding machine with dust suction optimized balance structure according to claim 1, characterized in that: The blade plate (300) is flush with the upper edge of the dust outlet (200).

3. The sanding machine with dust suction optimized balance structure according to claim 1, characterized in that: The angle of the major arc is 260° to 280°.

4. The sanding machine with dust suction optimized balance structure according to claim 3, characterized in that: The angle of the major arc is 270°.

5. The sanding machine with dust suction optimized balance structure according to claim 1, characterized in that: An eccentric seat (600) is provided on the rotating shaft (400); One end of the sector-shaped balancing block (500) is sleeved on the rotating shaft (400), and the sector-shaped balancing block (500) is pressed against the lower surface of the blade plate (300) by the eccentric seat (600).

6. The sanding machine with dust suction optimized balance structure according to claim 5, characterized in that: The eccentric seat (600) is sleeved with a bearing seat (720); A pressure plate (730) is provided on the bottom surface of the bearing seat (720); The bottom surface of the pressing plate (730) is provided with a perforated bottom plate (740); A brake pad (750) is provided between the perforated bottom plate (740) and the truncated cone-shaped recess (110).

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