Handheld dustproof grinding machine and handheld dustproof grinding device

Abstract

The utility model relates to the technical field of devices for removing dust on grinding machines or polishing machines, in particular to a handheld dustproof grinding machine and a handheld dustproof grinding device. A handheld dustproof grinding device comprises a handheld dustproof grinding machine and a grinding head, the handheld dustproof grinding machine comprises a shell, a grinding inner cavity used for containing the grinding head and a dust collection channel are formed in the shell, and an outlet of the dust collection channel is formed in the shell and used for being connected with an external dust collector. A peripheral surrounding breathable dustproof part is arranged at a port of the grinding inner cavity, a driving device is further arranged on the shell, the power output end of the driving device extends into the grinding inner cavity to be used for assembling a grinding head, and an inlet of the dust collection channel communicates with the grinding inner cavity. And the inner wall, located in the polishing inner cavity, of the shell is used for forming a radial gap between the inner wall and the polishing head after the polishing head is assembled, so that dust is sucked to the dust suction channel through the radial gap, the suction effect is better, the good dustproof effect is achieved, and the polishing effect is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the device technical field of dust removal on the grinding machine or the polishing machine, especially to a handheld dustproof polisher and handheld dustproof polishing device. BACKGROUND

[0002] MPCVD (Microwave Plasma Chemical Vapour Deposition) is a kind of chemical vapor deposition technology using microwave plasma to excite reaction gas, which has the advantages of low reaction temperature, no impurity pollution, etc., and is suitable for preparing high-quality hard films and crystals with large area, good uniformity, high purity and good crystalline morphology. It has been widely used in the fields of large-size gem-grade single crystal diamond, high-orientation diamond crystal, nanocrystalline diamond film, carbon nanotube / diamond-like carbon (DLC), and other hard materials such as Al2O3 and c-BN film deposition.

[0003] MPCVD technology is currently the only feasible method to obtain electronic-grade diamond film, and the cleanliness of the reaction cavity in the MPCVD equipment is related to the quality of the diamond. After each diamond deposition, a carbon-containing film is deposited on the surface of the microwave antenna and the walls of the equipment reaction cavity. Before the next deposition, it needs to be completely cleaned and removed. The carbon-containing film is tightly combined with the walls, and the cleaning work is time-consuming and laborious, which greatly reduces the production efficiency of enterprises. The use of manual scraping shovel is difficult to clean completely, and it is easy to cause scratches on the walls and the surface of the microwave antenna, thereby affecting the synthesis reaction environment.

[0004] The use of traditional handheld small polisher can greatly improve the cleaning efficiency and scratches, but the dust generated during the polishing process pollutes the dust-free workshop environment, and the dust floating in the air can easily contaminate the substrate and ultimately affect the product quality of the diamond. A handheld polisher has appeared in the prior art to solve the above problems, such as the utility model patent with the authorization announcement number CN206883355U discloses a wall polisher, which comprises a cover shell, a grinding disc base arranged in the cover shell, a grinding disc pasted in the grinding disc base, and a brush assembly. A plurality of dust suction holes are arranged on the grinding disc to polish and suck dust at the same time. The brush of the brush assembly has a certain floating to cooperate with the wall to prevent the dust generated by the polishing disc from flying, thereby improving the dust suction effect and optimizing the working environment.

[0005] However, the dust suction holes of the wall polisher of the utility model are uniformly arranged on the grinding disc in the circumferential direction. When the driving motor drives the grinding disc to rotate at high speed, the dust suction holes rotate with the grinding disc. The dust will generate centrifugal force outward during the rotation of the grinding disc. This arrangement may cause incomplete suction and poor suction effect. In addition, the multi-hole arrangement has large suction resistance, which also reduces the suction efficiency. UTILITY MODEL CONTENT

[0006] The hand-held dustproof polisher is used for solving the problem that the dust suction hole of the existing hand-held polisher rotates together with the grinding disc, which results in incomplete suction and poor suction effect, and the porous arrangement mode has large suction resistance and reduces the suction efficiency.

[0007] The hand-held dustproof polisher comprises a shell, a polishing inner cavity and a dust suction channel arranged in the shell for accommodating a polishing head, an outlet of the dust suction channel is arranged on the shell for being connected with an external dust collector, a circumferentially surrounding air-permeable dustproof member is arranged at a port of the polishing inner cavity, a driving device is further arranged on the shell, a power output end of the driving device extends into the polishing inner cavity for assembling the polishing head, an inlet of the dust suction channel is communicated with the polishing inner cavity, and an inner wall of the shell located at the polishing inner cavity is used for forming a radial gap between the polishing head after the polishing head is assembled, so that dust is sucked to the dust suction channel through the radial gap.

[0008] Further, the shell comprises a holding handle extending at a certain angle with the opening of the polishing inner cavity, and the dust suction channel is located inside the holding handle and extends along the holding handle.

[0009] Further, the angle between the opening direction of the polishing inner cavity and the holding handle is between 90-120 degrees.

[0010] Further, the outlet of the dust suction channel is arranged at the end of the holding handle.

[0011] Further, the inner cavity is in the shape of a bowl as a whole, and the dust suction channel is communicated with the cavity bottom of the bowl-shaped polishing inner cavity.

[0012] Further, the air-permeable dustproof member comprises a circumferentially surrounding long soft hair brush.

[0013] The hand-held dustproof polisher improves the prior art hand-held dustproof polisher, and has the following beneficial effects: the driving device is used for driving the polishing head to rotate for polishing, dust flows to the radial periphery under the centrifugal force when the polishing head rotates, the air-permeable dustproof part prevents dust from flying out of the polishing inner cavity while ensuring smooth airflow in the polishing inner cavity, the dust is sucked to the dust suction device through the radial gap to the dust suction channel, the radial gap between the polishing head and the inner wall of the shell realizes suction, compared with the dust suction hole in the prior art, the radial gap does not rotate with the polishing head, the airflow passage resistance of the radial gap is small, the suction effect is better, and the hand-held polisher can operate the polishing head to move back and forth, the area polished will pass through the radial gap, the suction range is more complete, and good dustproof effect is achieved, and the polishing effect is improved.

[0014] The utility model discloses a kind of hand-held dustproof polishing devices, for solving the dust suction hole of the prior art hand-held polisher rotates with abrasive disc, leading to incomplete suction, so that suction effect is not good, and the suction resistance of this porous arrangement is larger, also reduce suction efficiency problem.

[0015] The utility model discloses a kind of hand-held dustproof polishing devices using following technical solutions: a kind of hand-held dustproof polishing device, including hand-held dustproof polisher and polishing head, hand-held dustproof polisher includes shell, the polishing inner cavity for accommodating polishing head and dust suction channel are set in shell, the outlet of dust suction channel is set on shell for with external dust collector connection, the port of polishing inner cavity is provided with the air-permeable dustproof part of circumferential encircling, shell is also provided with driving device, the power output end of driving device extends into polishing inner cavity for assembling polishing head, the inlet of dust suction channel is communicated with polishing inner cavity, the inner wall of shell in polishing inner cavity is used to form radial gap between polishing head after assembling polishing head, to make dust be sucked to dust suction channel by radial gap.

[0016] Further, the shell includes a holding handle extending at an angle from the opening of the polishing inner cavity, and the dust suction channel is located inside the holding handle and extends along the holding handle.

[0017] Further, the angle between the opening direction of the polishing inner cavity and the direction of the holding handle is between 90 and 120 degrees.

[0018] Further, the outlet of the dust suction channel is arranged at the end of the holding handle.

[0019] Further, the inner cavity as a whole has a bowl shape, and the dust suction channel is connected to the bottom of the bowl-shaped polishing inner cavity.

[0020] Further, the air-permeable dustproof part includes a circumferential long soft hair brush.

[0021] The hand-held dustproof polishing device improves the existing hand-held dustproof polishing device, and has the beneficial effects that the driving device is used for driving the polishing head to rotate for polishing, when the polishing head rotates for polishing, dust flows to the radial periphery under the centrifugal force, when the dust flows to the radial periphery, the air-permeable dustproof member prevents the dust from flying out of the polishing inner cavity while ensuring smooth airflow in the polishing inner cavity, the dust is sucked to the dust collection device through the radial gap to the dust collection channel, the suction is realized through the radial gap between the polishing head and the inner wall of the shell, compared with the dust collection hole in the prior art, the radial gap does not rotate with the polishing head, so that the airflow passage resistance of the radial gap is small, the suction effect is better, and when the hand-held polisher operates the polishing head to move back and forth, the polished area will pass through the radial gap, the suction range is more complete, and a good dustproof effect is achieved, and the polishing effect is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structure schematic view of the embodiment of the hand-held dustproof polishing device.

[0023] In the figure: 1, rechargeable lithium ion battery; 2, motor switch; 3, motor; 4, shell; 5, polishing disc; 6, Scotch-Brite cloth; 7, long soft hair brush; 8, dust collection channel; 9, external dust collector interface. DETAILED DESCRIPTION

[0024] The features and performances of the utility model are further described in detail in combination with the embodiments.

[0025] Firstly, the technical scheme of the utility model is described in general:

[0026] After the diamond is deposited, a carbon-containing film is deposited on the wall of the reaction cavity of the equipment and the surface of the microwave antenna, and before being deposited again, the carbon-containing film needs to be completely cleaned and removed. The carbon-containing film is combined with the wall closely, the cleaning work is heavy and time-consuming, and the production efficiency of the enterprise is greatly reduced. It is difficult to clean completely by using the traditional manual scraping method, and scratches on the wall and the surface of the microwave antenna are easily caused, thereby affecting the synthesis reaction environment.

[0027] Therefore, a handheld small grinder is needed to greatly improve the cleaning efficiency and scratch, but the dust generated in the grinding process of the traditional small grinder pollutes the clean workshop environment, and the dust floating in the air is easy to contaminate the substrate and ultimately affect the product quality of the diamond. A handheld grinder appears in the prior art, which comprises a cover, a grinding disc base arranged in the cover, a grinding disc attached to the grinding disc base, and a brush assembly. A plurality of dust suction holes are arranged on the grinding disc to grind and suck dust at the same time. The brush of the brush assembly has a certain floating and cooperates with the wall to prevent the dust ground by the grinding disc from flying, thereby improving the dust suction effect and optimizing the working environment. However, the dust suction holes in the prior art are uniformly arranged on the grinding disc in the circumferential direction. When the driving motor drives the grinding disc to rotate at high speed, the dust suction holes rotate with the grinding disc. The dust will generate centrifugal force outward during the rotation of the grinding disc. This arrangement may cause incomplete suction and poor suction effect, and the multi-hole arrangement has large suction resistance, which also reduces the suction efficiency.

[0028] The utility model discloses based on prior art's problem, designs a kind of handheld dustproof polishing device, including handheld dustproof grinder, shell is provided with gripping handle for operating grinder, grinding inner cavity and dust suction passage for accommodating polishing head are provided in shell, the entrance of dust suction passage is communicated with grinding inner cavity, the outlet of dust suction passage is set on shell for being connected with external dust collector, so that the overall structure of grinder is relatively light, the end of shell located at one side of grinding inner cavity is provided with circumferential surrounding air-permeable dustproof piece, air-permeable dustproof piece can stop dust flying out of shell under the condition of guaranteeing gas flow, shell is also provided with driving device, the power output end of driving device is inserted into grinding inner cavity for assembling polishing head, driving device drives polishing head to rotate and grinds, the inner wall of shell located at grinding inner cavity is used to form radial gap between polishing head after assembling polishing head, so that dust is sucked to dust suction passage by radial gap, compared with dust suction hole in prior art, radial gap does not rotate with polishing head, so that the air flow passage resistance of radial gap is small, suction effect is more good, and handheld grinder operates polishing head to and fro action, and the area grinded is all passed through radial gap, suction range is more complete, reaches good dustproof effect, effectively improves grinding effect.

[0029] The specific embodiment of the handheld dustproof polishing device of the utility model:

[0030] The structure diagram of the handheld dustproof polishing device of the utility model is as Figure 1As shown, a handheld dustproof polishing device comprises a handheld dustproof polisher, the handheld dustproof polisher comprises a shell 4, the shell 4 is provided with a holding handle for facilitating personnel to operate the polisher, the shell 4 has a polishing inner cavity and a dust suction channel 8, the polishing inner cavity is used for accommodating a polishing head, the polishing inner cavity and the dust suction channel 8 are communicated, the shell 4 is provided with a driving device, the driving device is an electric motor 3 in the embodiment, the output end of the electric motor 3 extends into the polishing inner cavity, the handheld dustproof polishing device further comprises the polishing head, the polishing head is assembled on the output end of the electric motor 3, specifically, the inlet of the dust suction channel 8 is communicated with the polishing inner cavity, the shell 4 is provided with an external dust collector interface 9, the external dust collector interface 9 is the outlet of the dust suction channel 8.

[0031] The end of the shell 4 located on one side of the polishing inner cavity is provided with a circumferentially surrounding air-permeable dustproof piece, the air-permeable dustproof piece ensures the air permeability of the polishing inner cavity while preventing the dust polished by the polishing head from flying out of the polishing inner cavity, the key of the utility model lies in that the inner wall of the shell 4 located in the polishing inner cavity is used for forming a radial gap between the polishing head after assembling the polishing head, so that the dust can be directly sucked to the dust suction channel 8 and then into the external dust collector through the radial gap, since the dust flows in the radial direction when being rotated and polished by the polisher, the dust is stopped by the air-permeable dustproof piece when flowing to the air-permeable dustproof piece, and is sucked to the dust suction channel 8 through the radial gap between the inner wall of the shell 4 and the polishing head, the overall suction resistance is small, and when the handheld polisher operates the polishing head to move back and forth, the polished area will pass through the radial gap, the suction range is more complete, and good dustproof effect is achieved, and the polishing effect is effectively improved.

[0032] When considering how to set the dust suction channel 8, in order to make the structure of the polisher as small and convenient to operate as possible, preferably, the holding handle and the opening of the polishing inner cavity extend at a certain angle, the dust suction channel 8 is located inside the holding handle and extends along the holding handle, so that the entire polishing shell 4 structure is more compact, without separating the dust suction channel 8 from the holding handle, the structure is simple and convenient to manufacture. Of course, in other embodiments, when the holding handle and the polishing inner cavity are arranged to be inclined, the dust suction channel 8 can also be arranged at a position opposite to the polishing inner cavity, so that although the holding handle and the dust suction channel 8 are arranged separately to make the structure slightly complex, the dust suction channel 8 is a straight channel, so that the suction resistance is smaller, and good dust suction effect can be achieved.

[0033] In order to further improve the suction effect while being convenient to hold, preferably, the included angle between the opening direction of the polishing inner cavity and the holding handle direction is between 90-120 degrees, and in the embodiment, the included angle between the opening direction of the polishing inner cavity and the holding handle direction is slightly larger than 90 degrees, and specifically, various angles such as 95 degrees, 100 degrees, and 120 degrees can be used. This setting can first ensure that the holding effect of the holding handle is more convenient when the personnel operate, and at the same time, the entire suction path is smoother and is not easy to be blocked. Of course, in other embodiments, the included angle between the opening direction of the polishing inner cavity and the holding handle direction can also be 180 degrees, so that the holding handle is in the opposite direction of the inner cavity of the shell 4.

[0034] In order to make the operation of the polisher more convenient and easy to install with an external dust collector, preferably, the outlet of the dust collection channel 8 is arranged at the end of the holding handle. The outlet of the dust collection channel 8 arranged at the end of the holding handle will not conflict with the hand-held part when the external dust collector is assembled, and the dust collector is easy to install. Of course, in other embodiments, when the holding handle is long, the opening at the middle position of the holding handle can also be used as the outlet of the dust collection channel 8.

[0035] The air-permeable dustproof member needs to have the external air flow with the air in the polishing inner cavity, and cannot be completely sealed. In order to achieve better air-permeable dustproof effect, preferably, the air-permeable dustproof member comprises a circumferentially surrounding long soft hair brush 7, which will not affect the air flow channel effect of the dust collection, and can also achieve good dustproof effect. The long soft hair brush 7 is bent and attached to the MPCVD cavity curved surface to play a sealing and dustproof role. Of course, in other embodiments, the air-permeable dustproof member can also be arranged in multiple rubber strips with a small gap between adjacent rubber strips to achieve the air-permeable dustproof effect.

[0036] In the embodiment, the motor switch 2 is arranged on the shell 4 away from the polishing head of the motor 3. The motor switch 2 is located at the intersection of the holding handle and the polishing inner cavity shell, so that the motor switch 2 is located at the position easy to be operated by the thumb after holding the holding handle, and the use is convenient. The position in the holding handle which is the same as the direction of the dust collection channel 8 is also provided with a rechargeable lithium ion battery 1. After charging, it can be used without being plugged in, and the use environment is not limited.

[0037] In the embodiment, the polishing head comprises a polishing disc 5 connected with the output end of the motor 3. In order to adapt to the polishing demand of the MPCVD cavity surface, the polishing disc 5 is fixed with a scouring pad 6 through a magic tape. The industrial scouring pad 6 is used as a polishing piece to contact and polish the MPCVD cavity, which causes little damage to the MPCVD cavity surface. The scouring pad 6 is fixed on the polishing disc 5 connected with the motor 3 through the magic tape, which is convenient to replace and easy to operate.

[0038] From the above description of the specific embodiments of the handheld dustproof polishing device of the utility model, it can be seen that the handheld dustproof polishing device of the utility model drives the polishing head to rotate for polishing through the driving device. Since the polishing head flows outward along the radial periphery under the centrifugal force when rotating and polishing, the dustproof ventilation member prevents dust from flying out of the polishing inner cavity while ensuring smooth airflow in the polishing inner cavity. The dust is sucked to the dust collection device through the radial gap to the dust collection channel. The radial gap between the polishing head and the inner wall of the shell realizes suction. Compared with the dust collection hole in the prior art, the radial gap does not rotate with the polishing head, so that the airflow passage resistance of the radial gap is small, the suction effect is better, and the area polished by the handheld polisher is passed through the radial gap while the polishing head is operated back and forth, so that the suction range is more complete, and a good dustproof effect is achieved, thereby effectively improving the polishing effect.

[0039] The embodiment of the handheld dustproof polisher of the utility model is the same as that of the handheld dustproof polisher in the handheld dustproof polishing device of the utility model, and therefore will not be described again.

[0040] The above is only a preferred embodiment of the utility model, and does not limit the utility model. The patent protection scope of the utility model is subject to the claims, and equivalent structural changes made according to the content of the specification and drawings of the utility model should also be included in the protection scope of the utility model.

Claims

1. A handheld dustproof polisher comprising a housing, a polishing cavity for accommodating a polishing head and a dust suction channel are arranged in the housing, an outlet of the dust suction channel is arranged on the housing for connecting with an external dust collector, a circumferential air-permeable dustproof member is arranged at a port of the polishing cavity, a driving device is further arranged on the housing, a power output end of the driving device extends into the polishing cavity for assembling the polishing head, characterized in that, The inlet of the dust suction channel is communicated with the polishing inner cavity, and the inner wall of the shell located at the polishing inner cavity is used to form a radial gap between the polishing head after the polishing head is assembled, so that dust is sucked to the dust suction channel through the radial gap.

2. The hand dusting sander of claim 1 wherein, The shell comprises a handle extending at an angle with the opening direction of the polishing inner cavity, and the dust suction channel is located inside the handle and extends along the handle.

3. The hand dusting sander of claim 2 wherein, The angle between the opening direction of the polishing inner cavity and the handle direction is between 90-120 degrees.

4. The hand dusting sander of claim 2 wherein, The outlet of the dust suction channel is arranged at the end of the handle.

5. The hand dusting sander of claim 1 wherein, The polishing inner cavity is in a whole bowl shape, and the dust suction channel is communicated at the cavity bottom position of the bowl-shaped polishing inner cavity.

6. The hand dusting sander of claim 1 wherein, The air-permeable dustproof member comprises a circumferentially surrounding long soft hair brush.

7. A handheld dustproof polishing device, comprising a handheld dustproof polisher and a polishing head, the handheld dustproof polisher comprising a housing, a polishing inner cavity for accommodating the polishing head and a dust suction channel being arranged in the housing, an outlet of the dust suction channel being arranged on the housing for connecting with an external dust collector, a circumferentially surrounding air-permeable dustproof member being arranged at a port of the polishing inner cavity, and a driving device being further arranged on the housing, a power output end of the driving device extending into the polishing inner cavity for assembling the polishing head, characterized in that, The inlet of the dust suction channel is communicated with the polishing inner cavity, and the inner wall of the shell located at the polishing inner cavity is used to form a radial gap between the polishing head after the polishing head is assembled, so that dust is sucked to the dust suction channel through the radial gap.

8. The handheld dust containment sanding device of claim 7, wherein, The shell comprises a handle extending at an angle with the opening direction of the polishing inner cavity, and the dust suction channel is located inside the handle and extends along the handle.

9. The handheld dust containment sanding device of claim 8, wherein, The angle between the opening direction of the polishing inner cavity and the handle direction is between 90-120 degrees.

10. The handheld dust containment sanding device of claim 8, wherein, The outlet of the dust suction channel is arranged at the end of the handle.

11. The handheld dust containment sanding device of claim 7, wherein, The polishing inner cavity is in a whole bowl shape, and the dust suction channel is communicated at the cavity bottom position of the bowl-shaped polishing inner cavity.

12. The handheld dust containment sanding device of claim 7, wherein, The air-permeable dustproof member comprises a circumferentially surrounding long soft hair brush.

Images