Handheld grinding and dust collection all-in-one machine

Abstract

The utility model relates to a handheld grinding and dust collection all-in-one machine which comprises a machine base and a grinding assembly, the grinding assembly comprises a millstone and a power device, a grinding cavity is formed in the machine base, a grinding opening extending in the length direction of the millstone is formed in one side of the grinding cavity, the millstone is partially exposed out of the grinding opening, and the end of the millstone is installed at one end of the machine base; the other end of the machine base is further provided with a dust collection head which is connected with the grinding cavity and forms negative pressure to collect dust particles. The grinding and dust collection all-in-one machine further comprises a handheld part, and a control component used for controlling starting and stopping of the power device and the dust collection head and / or adjusting the power output is further arranged on the handheld part. On one hand, handheld operation is convenient so as to reduce the polishing difficulty, and pollution of dust to the production environment is effectively reduced based on dust removal of the dust collection head; and on the other hand, starting and power output are set based on the control component, the grinding efficiency and quality are improved, and practicability is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of grinding processing, and particularly relates to a handheld grinding and dust collection all-in-one machine. Background Art

[0002] Currently, deposition methods such as PECVD and ALD processes are required in the processing of solar cells. During the process, an aluminum boat is used to carry the solar cells. After the aluminum boat has been used for a period of time, the aluminum oxide deposited on the aluminum boat plate becomes too thick. However, the excessively thick aluminum oxide will cause it to warp and fall off due to thermal expansion and contraction, contaminating the solar cells. Therefore, the aluminum boat needs to be polished and cleaned regularly. The current maintenance cycle is once a month.

[0003] However, there are two common cleaning solutions for aluminum boats:

[0004] Option 1: manual grinding with handheld grinding stones. The advantages of this method are easy operation and low cost. Due to the short operating cycle of aluminum boats, this method is currently adopted by the industry. However, manual grinding produces serious dust, which is harmful to the human body. At the same time, there are certain requirements for the grinding environment. The closed environment and the dust after grinding will pollute the surrounding environment, so it has the disadvantage of poor environmental protection.

[0005] Option 2 is to use sandblasting cleaning. This method not only has the problems of complex process and high cleaning cost, but also because the cleaning frequency of aluminum boats is low, battery manufacturers comprehensively consider the investment benefits and do not build separate sandblasting cleaning workshops. The aluminum boats need to be transported to companies specializing in sandblasting cleaning for cleaning, and the operation cycle of the aluminum boats is long.

[0006] After comprehensive consideration, combined with the current actual production process in the industry, and considering production costs, most manufacturers use manual polishing methods (that is, option one) to implement aluminum boat polishing. Therefore, how to avoid environmental pollution during polishing is very important. Utility Model Content

[0007] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an improved handheld grinding and dust collection all-in-one machine.

[0008] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0009] A handheld grinding and dust collection machine comprises a machine base and a grinding assembly mounted on the machine base, wherein the grinding assembly comprises a grinding stone and a power device for driving the grinding stone to rotate around its own axis. In particular, a grinding chamber is formed inside the machine base, and the grinding chamber forms a grinding opening extending along the length direction of the grinding stone from one side. The grinding stone is partially exposed from the grinding opening and its own end is mounted on one end of the machine base. Driven by the power device, the grinding stone rotates in the grinding chamber; the other end of the machine base is also provided with a dust collection head connected to the grinding chamber and forming a negative pressure to collect dust particles; the grinding and dust collection machine also comprises a handheld part mounted on the machine base and located on one side or both sides of the grinding opening, wherein the handheld part is also provided with a control component for controlling the start and stop of the power device and the dust collection head and / or adjusting the power output.

[0010] Preferably, the base and the grinding stone have a similar appearance, with one end open and the other closed. The grinding stone is pivotally mounted to the closed end, and the dust collector is connected to the open end. This design not only creates an aesthetically pleasing overall appearance, but also facilitates the removal and filtration of dust raised during grinding by the dust collector (the principle of a dust collector is common knowledge: it sucks in dust and gas together, then intercepts and filters, retaining dust particles and discharging gas). Furthermore, the closed end reduces the difficulty of negative pressure suction and facilitates assembly of the grinding stone.

[0011] According to a specific embodiment and preferred aspect of the present invention, a detachable cover is provided at the closed end of the base, with the power unit concealed within the closed cavity formed by the cover and the base. This prevents dust from entering the power unit and affecting its service life. For heat dissipation, a heat dissipation channel with a filter can be arranged on the cover (similar to the motor mounting position of a hair dryer).

[0012] In some embodiments, the dust collector head is detachable from the open end of the base, so that the dust collector head can be detached and assembled at any time to clean the collected dust.

[0013] According to another specific embodiment and preferred aspect of the present invention, the dust collector head includes a housing detachably mounted to the open end of the housing, a negative pressure blower and a filter element mounted within the housing, wherein the housing forms a filter cavity for collecting dust, the filter element is mounted within the filter cavity, and an air outlet is further provided at the end of the housing. The filter element filters the air, and the air is discharged through the air outlet, thereby completing the primary filtration of the dust.

[0014] Preferably, the filter element is intercepted at the open end of the base.

[0015] In some specific embodiments, a partition forms a first housing and a second housing within the housing. The negative pressure fan is mounted on the partition. The first housing is detachably connected to the housing base and internally forms a filter chamber. The air outlet is located in the second housing. The partition not only facilitates fan installation but also facilitates the formation of a filter chamber for dust collection after primary filtration.

[0016] Preferably, the first cover body and the second cover body are detachably connected to facilitate assembly and parts replacement.

[0017] According to another specific embodiment and preferred aspect of the present invention, the vacuum cleaner head further includes a protective filter cover that covers the negative pressure blower. The protective filter cover, the filter element, and the first cover body form a filter chamber. Dust intercepted by the filter element is adsorbed on the filter element. Gas entering the filter chamber is filtered by the protective filter cover and then enters the second cover body before being discharged through the air outlet. This two-stage filtration method better collects dust and further reduces the probability of environmental pollution.

[0018] In addition, the handheld portion includes a hand grip and a hand handle, wherein the hand grip and the hand handle are located on opposite sides of the machine base, and the centers of the hand grip and the hand handle are located on the same plane. This makes it easier for users to hold it with either hand and more convenient for polishing.

[0019] As for the control components, they use a conventional display screen, buttons and circuit board combination, which can have its own power supply or be connected to an external power supply through a lead. At the same time, this operation method is very common and belongs to the conventional control method.

[0020] Due to the implementation of the above technical solution, the utility model has the following advantages compared with the prior art:

[0021] The existing manual handheld grinding stone is used for grinding. The advantages of this method are easy operation and low cost. Due to the short operating cycle of the aluminum boat, this solution is currently adopted in the industry. However, manual grinding produces serious dust, which is harmful to the human body. At the same time, there are certain requirements for the grinding environment. The closed environment and the dust after grinding pollute the surrounding environment, so there is a disadvantage of poor environmental protection. The present application comprehensively designs the structure of a handheld grinding and dust collection machine, cleverly solving the shortcomings and defects of the existing technology. After using the grinding and dust collection machine, the grinding stone is aimed at the position where the aluminum boat needs to be polished by hand, and then the control components are controlled to start and set the power output. The dust is removed by the dust collection head while grinding, and after grinding is completed, the dust collection head can be removed for dust cleaning. Therefore, compared with the existing design, the present invention is not only easy to hold and operate to reduce the difficulty of grinding, but also effectively reduces the pollution of dust to the production environment based on the dust removal of the dust collection head; on the other hand, the start and power output settings are based on the control components to improve the grinding efficiency and quality, and it is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of the handheld grinding and vacuuming machine of this embodiment;

[0023] Figure 2 for Figure 1 The main schematic diagram of

[0024] Figure 3 for Figure 2 Schematic top view of

[0025] Figure 4 for Figure 2 A schematic cross-sectional view of the partial structure of the middle vacuum head;

[0026] Wherein: 1, machine base; 10, grinding cavity; 10a, grinding opening;

[0027] 2. Grinding assembly; 20. Grinding stone; 21. Power unit;

[0028] 3. Cleaning head; 30. Device cover; 300. Air outlet; 301. First cover; 302. Second cover; 31. Negative pressure fan; 32. Filter element; 33. Protective filter cover; G. Partition;

[0029] 4. Hand grip; 40. Hand grip; 41. Hand handle;

[0030] 5. Control components; 50. Display screen; 51. Buttons;

[0031] 6. Cover;

[0032] q, closed cavity; s, filter cavity. DETAILED DESCRIPTION

[0033] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0034] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0036] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0037] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it can mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher horizontal height than the second feature. When a first feature is "below," "below," or "below" a second feature, it can mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower horizontal height than the second feature. It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there can be an intermediate element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there can be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0038] like Figures 1 to 4 As shown, the handheld grinding and dust collection machine of this embodiment includes a machine base 1, a grinding component 2 installed on the machine base 1, a dust collection head 3 that forms a negative pressure to collect dust particles, and a handheld part 4, wherein the grinding component 2 includes a grinding stone 20, a power device 21 for driving the grinding stone 20 to rotate around its own axis, a grinding chamber 10 is formed inside the machine base 1, and the grinding chamber 10 forms a grinding opening 10a extending along the length direction of the grinding stone from one side, the grinding stone 20 is partially exposed from the grinding opening 10a and its own end is installed at one end of the machine base 1, and the grinding stone 20 rotates in the grinding chamber 10 under the drive of the power device 21; the dust collection head 3 is installed at the other end of the machine base 1 and connected to the grinding chamber 10; the handheld part 4 is installed on the machine base 1 and is located on one side or both sides of the grinding opening 10a, and the handheld part 4 is also provided with a control component 5 for controlling the start and stop of the power device 21 and the dust collection head 3 and / or adjusting the power output.

[0039] Specifically, the base 1 and grindstone 2 are similar in appearance, with one end open and the other closed. The grindstone 20 is pivotally mounted to the closed end, and the dust collector 3 is connected to the open end. This design not only creates an aesthetically pleasing overall appearance but also facilitates the removal and filtration of dust raised during grinding by the dust collector (the principle of a dust collector is common knowledge: it absorbs dust and gas together, then intercepts and filters, retaining dust particles and discharging gas). Furthermore, the closed end design not only reduces the difficulty of negative pressure suction but also facilitates grindstone assembly.

[0040] In this example, a detachable cover 6 is provided at the closed end of the base 1, and the power unit 21 is concealed within the closed cavity q formed by the cover 6 and the base 1. To prevent dust from entering the power unit and affecting its service life, a heat dissipation channel with a filter can be arranged on the cover (similar to the motor mounting position of a hair dryer) for heat dissipation.

[0041] Specifically, the dust collector head 3 is detachable and assembled at the open end of the base 1. In this way, it can be disassembled and assembled at any time to clean the collected dust. The dust collector head 3 includes a device cover 30 that is detachable and assembled at the open end of the base 1, a negative pressure fan 31 and a filter element 32 installed in the device cover 30, and a protective filter cover 33 that covers the negative pressure fan 31, wherein a filter cavity for collecting dust is formed in the device cover 30, and the filter element 32 is installed in the filter cavity and intercepted at the open end of the base 1. An air outlet 300 is also provided at the end of the device cover 30. The filter element is used for filtering, and the gas is discharged from the air outlet. Therefore, the filter element 32 can complete the first-level filtration of the dust, and the protective filter cover 33 can filter the filtered gas again (that is, the second-level filtration), and then discharge it from the air outlet 300.

[0042] In this example, the interior of the device cover 30 is formed by a first cover body 301 and a second cover body 302 by a partition G. The negative pressure fan 31 is installed on the partition G. The first cover body 301 is detachably connected to the base 1, and the air outlet 300 is located on the second cover body 302. The provision of the partition not only facilitates the installation of the fan, but also facilitates the formation of a filter chamber for collecting dust after the first-stage filtration. The first cover body 301 and the second cover body 302 are detachably connected. This facilitates assembly and parts replacement. At the same time, the protective filter cover 33, the filter element 32 and the first cover body 301 form the above-mentioned filter chamber s. The dust intercepted by the filter element 32 is adsorbed on the filter element 32. The gas entering the filter chamber s enters the second cover body 302 under the secondary filtration of the protective filter cover 33 and is discharged from the air outlet 300. The two-stage filtration method is adopted to better collect dust and further reduce the probability of environmental pollution.

[0043] In addition, the handheld portion 4 includes a hand grip 40 and a hand handle 41, wherein the hand grip 40 and the hand handle 41 are respectively located on opposite sides of the base 1, and the centers of the hand grip 40 and the hand handle 41 are located on the same plane. This makes it easier for the user to hold the tool with either hand, making it more convenient to perform polishing.

[0044] As for the control component 5, it is arranged on the handheld handle 40 and adopts a conventional display screen 50, button 51 and circuit board combination. It can have its own power supply or be connected to an external power supply through a lead. At the same time, this operation method is very common and belongs to a conventional control method. It will not be elaborated here, but it is also clearly feasible.

[0045] In this example, it's important to further explain that the grindstone 20 is pivotally mounted to the closed end. Bearings and shaft-end seals are used for assembly, creating a seal through lubricating oil applied to the shaft gap. End caps are also used to shield the ends, effectively preventing dust from entering and potentially impacting service life. Furthermore, for aesthetic reasons, the hoods 30 and housing 6 at both ends of the base 1 feature trapezoidal cross-sections. When placed horizontally, this prevents the grindstone from contacting the outside world.

[0046] In summary, after using this integrated grinding and dust collection machine, the grinding stone is aimed at the position of the aluminum boat that needs to be ground by hand, and then the control components are operated to start and set the power output. The dust is removed by the dust collection head while grinding, and after grinding is completed, the dust collection head can be removed for dust cleaning. Therefore, compared with the existing design, the utility model is not only convenient for handheld operation to reduce the difficulty of grinding, but also based on the dust removal of the dust collection head, effectively reducing the pollution of dust to the production environment; on the other hand, based on the control components to start and set the power output, the grinding efficiency and quality are improved, and it is highly practical.

[0047] The above detailed description of the utility model is intended to enable people familiar with the technology in this field to understand the content of the utility model and implement it. It is not intended to limit the scope of protection of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the scope of protection of the utility model.

Claims

1. A handheld grinding and vacuuming machine, comprising a base, a grinding assembly mounted on the base, wherein the grinding assembly comprises a grinding stone and a power device for driving the grinding stone to rotate about its own axis, characterized in that: A grinding chamber is formed inside the machine base, and a grinding opening is formed on one side of the grinding chamber and extends along the length direction of the grinding stone. The grinding stone is partially exposed from the grinding opening and its end is installed at one end of the machine base. Driven by the power device, the grinding stone rotates in the grinding chamber; the other end of the machine base is also provided with a dust collector head which is connected to the grinding chamber and forms a negative pressure to collect dust particles; the grinding and dust collection machine also includes a handheld part installed on the machine base and located on one side or both sides of the grinding opening, wherein the handheld part is also provided with a control component for controlling the start and stop of the power device and the dust collector head and / or adjusting the power output.

2. The handheld grinding and vacuuming machine according to claim 1, characterized in that: The machine base is similar in appearance to the grinding stone, with one end being open and the other end being closed. The grinding stone is mounted on the closed end via a pivot, and the dust collector is connected to the open end.

3. The handheld grinding and vacuuming machine according to claim 2, characterized in that: A detachable cover is also provided at the closed end of the machine base, and the power device is hidden in a closed cavity formed by the cover and the machine base.

4. The handheld grinding and vacuuming machine according to claim 2, characterized in that: The dust collecting head is detachable and assembled at the open end portion of the machine base.

5. The handheld grinding and vacuuming machine according to claim 4, characterized in that: The dust collector head includes a device cover that is detachable from the open end of the machine base, a negative pressure fan and a filter element installed in the device cover, wherein a filter cavity for collecting dust is formed in the device cover, the filter element is installed in the filter cavity, and an air outlet is also provided at the end of the device cover.

6. The handheld grinding and vacuuming machine according to claim 5, characterized in that: The filter element is intercepted at the open end of the base.

7. The handheld grinding and vacuuming machine according to claim 5 or 6, characterized in that: The interior of the device cover comprises a first cover body and a second cover body formed by a partition, the negative pressure fan is mounted on the partition, the first cover body is detachably connected to the base and the filter chamber is formed inside, and the air outlet is located on the second cover body.

8. The handheld grinding and vacuuming machine according to claim 7, characterized in that: The first cover body and the second cover body are detachably connected.

9. The handheld grinding and vacuuming machine according to claim 7, characterized in that: The dust collector head also includes a protective filter cover that covers the negative pressure fan, wherein the protective filter cover, the filter element and the first cover body form the filter cavity, and the dust intercepted by the filter element is adsorbed on the filter element. The gas entering the filter cavity enters the second cover body under the secondary filtration of the protective filter cover and is discharged from the air outlet.

10. The handheld grinding and vacuuming machine according to claim 1, characterized in that: The hand-held portion includes a hand-held grip and a hand-held handle, wherein the hand-held grip and the hand-held handle are respectively located on opposite sides of the machine base, and the centers of the hand-held grip and the hand-held handle are located on the same plane.

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