Portable dust collection grinding machine

Abstract

The utility model discloses a portable dust collection grinding machine which comprises a dust collector and a grinding device. A first dust collection pipe connector, an external power supply connector and a top storage cavity are reserved in the dust collector; the grinding device comprises a circular mounting base plate, a grinding motor, a circular grinding disc, a dust collecting cover and a shell; a shaft hole and a ventilation hole are formed in the circular mounting base plate, the grinding motor is vertically mounted on the top face of the circular mounting base plate, an output shaft of the grinding motor penetrates through the shaft hole downwards, and the circular grinding disc is mounted at the lower end of the output shaft of the grinding motor and located below the bottom face of the circular mounting base plate. The upper end of the dust collection cover is embedded in the periphery of the circular mounting base plate and extends downwards to surround the periphery of the circular grinding disc, a wire of the grinding motor extends out of the shell, and a second dust suction pipe connector is reserved in the shell; the two ends of the dust suction pipe are detachably connected to the first dust suction pipe connector and the second dust suction pipe connector correspondingly. The device is easy to install, compact and small in structure, portable and convenient to operate.

Description

Technical Field

[0001] The utility model relates to the field of production technology for textured films on plastic shells, in particular to a portable dust-absorbing and grinding machine. Background Art

[0002] At present, the polishing process required for mass production is generally carried out by large-scale equipment. It is not suitable for the needs of proofing a small number of products or even a single product. Because in some early stages, the mass production process has not yet been involved, the polishing equipment used in mass production is difficult to meet the needs of small-scale rapid proofing.

[0003] In the prior art, there are small (portable) devices that can both vacuum and polish. However, they are commonly used in the field of building decoration, such as polishing during wall decoration construction. Such devices are long-pole devices and cannot meet the polishing needs of small plastic shells. For example, CN 117961684 A discloses a wall decoration construction polishing machine, which relates to the technical field of wall decoration polishing. The wall decoration construction polishing machine includes a mounting plate, a mounting cylinder fixedly connected to the top of the mounting plate, a polishing motor fixedly connected to the top of the mounting cylinder, a first rotating shaft fixedly connected to the output shaft of the polishing motor, a mounting rod fixedly connected to one side of the housing, a lighting lamp fixedly connected to one side of the mounting rod, and a handle fixedly connected to the other side of the housing. The outer wall of the handle is provided with a locking assembly, a telescopic assembly is provided on the locking assembly, and a lock assembly is installed on the telescopic assembly. The outer wall of the mounting plate is provided with a dust collection assembly. If this type of grinder is used to grind relatively small-sized plastic shell products, the vacuum tube is likely to touch the surface of the plastic shell, and the corners and sides of the plastic shell cannot be polished properly.

[0004] Therefore, it is necessary to study a new technical solution to solve the above problems. Utility Model Content

[0005] In view of this, the present invention aims to address the deficiencies in the existing technology, and its main purpose is to provide a portable dust-collecting grinder that is easy to install, compact and small in structure, lightweight, portable, and easy to operate, meeting the needs of polishing the plastic shell before affixing the texture film when manually proofing products.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A portable dust collecting and grinding machine comprises a dust collector and a grinding device detachably placed on the dust collector;

[0008] The vacuum cleaner includes a vacuum cleaner body, on which a first vacuum pipe interface, an external power supply interface, and a top storage cavity are reserved;

[0009] The grinding device is removably located in the top storage cavity, and the grinding device includes a circular mounting base, a grinding motor, a circular grinding disc, a dust collecting cover and a shell; the circular mounting base is provided with an axial hole and a ventilation hole, the grinding motor is vertically mounted on the top surface of the circular mounting base, the output shaft of the grinding motor passes downward through the axial hole, and the circular grinding disc is mounted on the lower end of the output shaft of the grinding motor and is located below the bottom surface of the circular mounting base; the upper end of the dust collecting cover is nested in the periphery of the circular mounting base and extends downward to surround the outer circumference of the circular grinding disc, and a horizontal circumferential gap is maintained between the dust collecting cover and the circular grinding disc; the shell is mounted on the top surface of the circular mounting base and covers the outside of the grinding motor; the wires of the grinding motor extend out of the shell, and a second dust suction pipe interface is reserved on the shell;

[0010] It also includes a dust suction pipe, and both ends of the dust suction pipe are detachably connected to the first dust suction pipe interface and the second dust suction pipe interface respectively.

[0011] As a preferred solution, the axial hole is located at the center of the circular mounting base plate, and a plurality of the ventilation holes are provided and are spaced apart around the outer circumference of the axial hole.

[0012] As a preferred solution, the ventilation hole is provided at a distance of at least two-thirds of the radius away from the center of the circular grinding disc to facilitate dust removal.

[0013] As a preferred solution, a first handle is installed on the shell.

[0014] As a preferred solution, a second handle is integrally formed on the shell.

[0015] As a preferred solution, a buffer is provided between the top inner wall surface of the housing and the top of the motor.

[0016] As a preferred solution, the buffer component is a soft buffer gasket, or the buffer component is a spring, or the buffer component is a telescopic spring.

[0017] As a preferred solution, the lower end of the dust collecting hood extends downward beyond the bottom end of the circular grinding disc.

[0018] As a preferred solution, the lower section of the dust collecting hood is a structure that gradually becomes thinner downwards, and the inner wall surface of the lower section of the dust collecting hood is configured as a frustum circumferential side surface that gradually extends downwards and outwards.

[0019] As a preferred solution, the dust collecting cover is made of soft rubber material.

[0020] Compared with the existing technology, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that it is mainly based on the existing vacuum cleaner body to develop a grinding device that is easy to install, compact and small, lightweight, portable and easy to operate. The grinding device is used in conjunction with the vacuum cleaner body to meet the grinding needs before the texture film is affixed to the plastic shell when manually proofing the product.

[0021] In order to more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a perspective view of a portable dust collecting sander according to the first embodiment of the present invention;

[0023] Figure 2 This is a perspective view of the grinding device of the first embodiment of the present utility model;

[0024] Figure 3 is a cross-sectional view of a grinding device according to a first embodiment of the present invention;

[0025] Figure 4 It is a cross-sectional view of the grinding device of the second embodiment of the present invention. DETAILED DESCRIPTION

[0026] Please refer to Figures 1 to 4 As shown, it shows the specific structure of an embodiment of the present utility model.

[0027] In the description of the present invention, it should be noted that the terms "up", "down", "left", "right", 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 a limitation on the present invention.

[0028] A portable dust collecting and grinding machine comprises a dust collector 10 and a grinding device 20 detachably placed on the dust collector 10 .

[0029] The vacuum cleaner 10 includes a vacuum cleaner body 11 , on which a first vacuum pipe interface 12 , an external power supply interface 13 and a top storage cavity 14 are reserved.

[0030] The grinding device 20 is removably located in the top storage chamber 14 and includes a circular mounting base 21, a grinding motor 22, a circular grinding disc 23, a dust cover 24, and a housing 25. The circular mounting base 21 is an aluminum plate. An axial hole and a ventilation hole 211 are provided on the circular mounting base 21. Both the axial hole and the ventilation hole 211 pass through the upper and lower ends of the circular mounting base 21. The axial hole is located at the center of the circular mounting base 21. A plurality of ventilation holes 211 are provided and are spaced apart around the circumference of the axial hole. Preferably, the ventilation holes 211 are provided at a distance of at least two-thirds of the radius away from the center of the circular grinding disc 23 to facilitate dust removal. The grinding motor 22 is vertically mounted on the top surface of the circular mounting base 21, and the output shaft 221 of the grinding motor 22 passes downward through the axial hole, and the circular grinding disc 23 is mounted on the lower end of the output shaft 221 of the grinding motor 22 and is located below the bottom surface of the circular mounting base 21, and a vertical gap is maintained between the bottom surface of the circular mounting base 21 and the top surface of the circular grinding disc 23; the dust collecting hood 24 is made of soft rubber material, such as silicone material, and its upper end is slightly thicker, and an embedding groove with an inner circumferential opening is reserved, and the upper end of the dust collecting hood 24 is nested in the periphery of the circular mounting base 21, and the dust collecting hood 24 extends downward to surround the outer circumference of the circular grinding disc 23, and a horizontal circumferential gap is maintained between the dust collecting hood 24 and the circular grinding disc. Usually, the lower end of the dust collecting hood 24 is downwardly extended beyond the bottom end of the circular grinding disc 23. The lower section of the dust hood 24 is a structure that tapers downward, and the inner wall of the lower section of the dust hood 24 is provided with a frustum-shaped circumferential surface 241 that extends downward and outward, allowing the lower section of the dust hood 24 to naturally deform outward during grinding. The outer shell 25 is mounted on the top surface of the circular mounting base and covers the exterior of the grinding motor 22; the electrical wiring of the grinding motor 22 extends from the outer shell 25, and a second dust collection pipe interface 251 is reserved on the outer shell 25. Furthermore, a buffer member 26 is provided between the top inner wall of the outer shell and the top of the motor, which helps to improve the stability of the circular grinding disc 23 and improve the grinding effect. The buffer 26 is a soft buffer gasket, such as an EVA sheet, a silicone sheet, etc., or the buffer is a spring, which is used to press against the top inner wall of the shell and the top of the motor, or the buffer is a telescopic spring, and the upper and lower ends of the telescopic spring are respectively pressed against the top inner wall of the shell and the top of the motor. When setting the telescopic spring, multiple ones can be set at intervals.

[0031] The device further includes a dust suction pipe 30, the two ends of which are detachably connected to the first dust suction pipe interface 12 and the second dust suction pipe interface 251. In the storage state, the dust suction pipe 30 can be removed and the polishing device 20 and the dust suction pipe 30 can be placed together in the top storage chamber 14.

[0032] In embodiment 1, a first handle 27 is installed on the shell 25. The first handle 27 is in an inverted U shape, and its two legs are respectively locked to the top of the shell. Its cross bar is located above the shell 25 and maintains a gap for the hand to reach in. When in use, the cross bar of the first handle 27 can be carried by hand or held from behind.

[0033] In the second embodiment, a second handle 28 is integrally formed on the shell 25. The shell is made of injection molding material. The second handle 28 is located at the rear end of the shell. Usually, the wires of the grinding motor 22 extend from the tail end of the second handle 28. When in use, the second handle 28 is held by hand for operation.

[0034] During grinding, the bottom surface of the circular grinding disc 23 adheres to the surface of the plastic shell, and the lower end of the dust cover 24 deforms accordingly with the surface shape of the plastic shell. For corners, sides, or small irregular surfaces, the bottom surface of the circular grinding disc 23 is not limited to being used for grinding; the circumferential side surface of the circular grinding disc 23 can also be used for grinding. The grinding device 20 can be held by hand and the circular grinding disc 23 is slightly tilted. Dust generated during grinding is carried by the airflow upward from the ventilation holes 211 into the interior of the housing 25 and then into the dust collection tube 30, which also serves to dissipate heat and cool the grinding motor 22. In actual design, the circular grinding disc 23 is detachably mounted on the lower end of the output shaft of the grinding motor 22, for example, by being directly screwed to the lower end of the output shaft of the grinding motor 22. Since the circular grinding disc 23 is generally a two-piece structure: a grinding disc base and a cover embedded in the bottom of the grinding disc base, the cover is made of a relatively more flexible material than the grinding disc base. The cover is detachable from the grinding disc base, making it easy to replace and meet different grinding requirements. For the surface grinding of the same plastic shell, different covers can also be replaced according to the process. Moreover, the cover is usually a consumable part and needs to be removed and replaced with a new cover after a certain period of use. Furthermore, grinding disc bases of different outer diameters can be selected, and the size range is as follows: the outer diameter of the grinding disc base must be smaller than the inner diameter of the dust cover 24. Therefore, when the components of the polishing device 20 are basically the same, only the outer covering or the polishing disc base and the outer covering need to be replaced to obtain a variety of polishing devices 20, which can flexibly meet the surface polishing needs of more plastic shell products.

[0035] The design focus of the present utility model is that it is mainly based on the existing vacuum cleaner body 11, and a grinding device 20 is developed that is easy to install, compact and small, lightweight, portable, and easy to operate. The grinding device 20 is used in conjunction with the vacuum cleaner body 11 to meet the grinding needs before the texture film is affixed to the plastic shell during manual proofing of products.

[0036] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A portable dust collecting grinder, characterized by: It includes a vacuum cleaner and a detachable grinding device placed on the vacuum cleaner; The vacuum cleaner includes a vacuum cleaner body, on which a first vacuum pipe interface, an external power supply interface, and a top storage cavity are reserved; The grinding device is removably located in the top storage cavity, and the grinding device includes a circular mounting base, a grinding motor, a circular grinding disc, a dust collecting cover and a shell; the circular mounting base is provided with an axial hole and a ventilation hole, the grinding motor is vertically mounted on the top surface of the circular mounting base, the output shaft of the grinding motor passes downward through the axial hole, and the circular grinding disc is mounted on the lower end of the output shaft of the grinding motor and is located below the bottom surface of the circular mounting base; the upper end of the dust collecting cover is nested in the periphery of the circular mounting base and extends downward to surround the outer circumference of the circular grinding disc, and a horizontal circumferential gap is maintained between the dust collecting cover and the circular grinding disc; the shell is mounted on the top surface of the circular mounting base and covers the outside of the grinding motor; the wires of the grinding motor extend out of the shell, and a second dust suction pipe interface is reserved on the shell; It also includes a dust suction pipe, and both ends of the dust suction pipe are detachably connected to the first dust suction pipe interface and the second dust suction pipe interface respectively.

2. The portable dust collecting sander according to claim 1, characterized in that: The shaft hole is located at the center of the circular mounting base plate, and a plurality of ventilation holes are provided and are arranged at intervals around the outer circumference of the shaft hole.

3. The portable dust collecting sander according to claim 2, characterized in that: The ventilation holes are arranged outside the circular grinding disc at a distance of at least two-thirds of the radius away from the center of the circle, so as to facilitate dust removal.

4. The portable dust collecting sander according to claim 1, characterized in that: A first handle is installed on the shell.

5. The portable dust collecting sander according to claim 1, characterized in that: A second handle is integrally formed on the shell.

6. The portable dust collecting sander according to claim 1, characterized in that: A buffer is provided between the top inner wall surface of the shell and the top of the motor.

7. The portable dust collecting sander according to claim 6, characterized in that: The buffer component is a soft buffer gasket, or the buffer component is a spring, or the buffer component is a telescopic spring.

8. The portable dust collecting sander according to claim 1, characterized in that: The lower end of the dust collecting cover extends downward beyond the bottom end of the circular grinding disc.

9. The portable dust collecting sander according to claim 1, characterized in that: The lower section of the dust collecting cover is in a structure that gradually becomes thinner downwards, and the inner wall surface of the lower section of the dust collecting cover is arranged as a frustum peripheral side surface that gradually extends downwards and outwards.

10. The portable dust collecting sander according to claim 1, characterized in that: The dust collecting cover is made of soft rubber material.

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