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KR20100123073A - Portable electric grinder having a dust collecting structure - Google Patents

Portable electric grinder having a dust collecting structure Download PDF

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Publication number
KR20100123073A
KR20100123073A KR1020090042091A KR20090042091A KR20100123073A KR 20100123073 A KR20100123073 A KR 20100123073A KR 1020090042091 A KR1020090042091 A KR 1020090042091A KR 20090042091 A KR20090042091 A KR 20090042091A KR 20100123073 A KR20100123073 A KR 20100123073A
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South Korea
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cover
dust
dust collecting
coupled
head
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KR1020090042091A
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Korean (ko)
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권순철
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권순철
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Priority to KR1020090042091A priority Critical patent/KR20100123073A/en
Publication of KR20100123073A publication Critical patent/KR20100123073A/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/06Dust extraction equipment on grinding or polishing machines
    • B24B55/10Dust extraction equipment on grinding or polishing machines specially designed for portable grinding machines, e.g. hand-guided
    • B24B55/102Dust extraction equipment on grinding or polishing machines specially designed for portable grinding machines, e.g. hand-guided with rotating tools

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)

Abstract

본 발명은 핸드 그라인더의 회전부에 집진수단을 형성하여 작업 중에 발생되는 분진을 즉시 수거하여 작업 효율성과 작업 환경을 크게 개선할 수 있도록 한 집진구조를 갖는 핸드 그라인더에 관한 것이다.The present invention relates to a hand grinder having a dust collecting structure in which a dust collecting means is formed on a rotating part of the hand grinder to immediately collect dust generated during work, thereby greatly improving work efficiency and working environment.

전술한 본 발명의 특징은, 내측에 구동수단이 장착된 몸체(10)와, 상기 구동수단의 회전력을 전달하는 회전축(12)이 구비된 헤드(11)와, 상기 헤드(11)의 회전축(12)에 축 고정되어 함께 회전되면서 가공물을 연마하는 연마부재(13)로 구성된 핸드 그라인더에 있어서, 일측에 분진을 외부로 흡입 배출시키는 배출구(20a)가 형성된 커버(20)가 상기 헤드(11)에 결합되고, 커버(20) 내측에 흡입팬(21)이 회전축(12)에 의해 회전되게 결합되며, 상기 커버(20)에는 중앙에 흡입공(22a)이 형성된 덮개(22)가 결합되고, 상기 연마부재(13)에는 다수의 흡입구멍(13a)이 형성되며, 상기 연마부재(13)는 상기 덮개(22)와 이격되어 회전축(12)에 의해 회전되게 결합되며, 상기 연마부재(13)를 감싸는 집진가이드(23)가 상기 커버(20)에 결합되어 구성됨을 특징으로 하는 집진구조를 갖는 핸드 그라인더에 의하여 달성될 수 있는 것이다.The above-described features of the present invention include a head 10 having a driving means mounted therein, a rotating shaft 12 for transmitting a rotating force of the driving means, and a rotating shaft of the head 11 ( In the hand grinder composed of an abrasive member 13 which is fixed to the shaft 12 and rotates together to polish a workpiece, the head 11 includes a cover 20 having a discharge port 20a for suctioning and discharging dust to one side. It is coupled to, the suction fan 21 is rotated by the rotation shaft 12 inside the cover 20, the cover 20 is coupled to the cover 22 is formed with a suction hole (22a) in the center, A plurality of suction holes 13a are formed in the polishing member 13, and the polishing member 13 is spaced apart from the cover 22 so as to be rotated by the rotation shaft 12 and the polishing member 13. Hand having a dust collecting structure, characterized in that the dust collection guide 23 surrounding the cover 20 is configured to be coupled to the cover Which it will be achieved by the grinder.

Description

집진구조를 갖는 핸드 그라인더{Portable electric grinder having a Dust Collecting Structure}Portable grinder having a dust collecting structure {Portable electric grinder having a Dust Collecting Structure}

본 발명은 집진구조를 갖는 핸드 그라인더에 관한 것으로서, 더욱 구체적으로는 핸드 그라인더의 회전부에 집진수단을 형성하여 작업 중에 발생되는 분진을 즉시 수거하여 작업 효율성과 작업 환경을 크게 개선할 수 있도록 한 집진구조를 갖는 핸드 그라인더에 관한 것이다.The present invention relates to a hand grinder having a dust collecting structure, and more specifically, a dust collecting structure for forming dust collecting means at a rotating part of the hand grinder to immediately collect dust generated during work to greatly improve work efficiency and working environment. It relates to a hand grinder having.

일반적으로 핸드 그라인더는 목재, 석재 및 금속재 등의 표면처리 및 가공작업에 쓰이는 연마공구의 일종이다.In general, the hand grinder is a kind of grinding tool used for the surface treatment and processing of wood, stone and metal materials.

즉, 예로서 선박 등 각종 구조물 및 각종 건축용 내, 외장재 등의 표면을 연마하기 위한 핸드 그라인더는 구동축에 연마헤드와 연마판을 끼워 고정한 상태에서 고속으로 회전시켜 금속, 석재 등과 같은 가공물의 표면을 연마시키도록 된 것이다.That is, for example, a hand grinder for polishing a surface of various structures such as a ship and various building materials, such as interior materials and exterior materials, rotates at a high speed while a polishing head and an abrasive plate are fixed to a drive shaft, thereby polishing the surface of a workpiece such as metal or stone. It was supposed to be.

통상적으로 그라인더는 원판형의 연마판을 가지게 되고, 상기 연마판의 표면은 샌드페이퍼와 같은 연마가 가능한 처리가 이루어져 가공물의 표면에 밀착된 상 태로 고속 회전함으로서 가공물의 표면을 연마하는 것이다.Typically, the grinder has a disk-shaped abrasive plate, and the surface of the abrasive plate is subjected to a polishing process such as sand paper, thereby polishing the surface of the workpiece by rotating at a high speed in close contact with the surface of the workpiece.

그라인더의 구성은 몸체의 소정위치로 형성되는 구동부와, 상기 구동부의 회전축에 설치되는 연마헤드와, 상기 연마헤드의 저면으로 설치되는 연마판과, 연마헤드와 연마판을 회전축에 상호 연결시키는 고정부로 크게 이루어진다.The grinder includes a drive unit formed at a predetermined position of the body, a polishing head installed on the rotation shaft of the drive unit, an abrasive plate provided on the bottom surface of the polishing head, and a fixing unit interconnecting the polishing head and the abrasive plate to the rotation shaft. Is made large.

따라서, 그라인더는 선박 등 각종 구조물, 건축물 등의 가공물 표면을 고속회전에 의한 마찰을 이용하여 표면을 연마 가공하는 것이다.Therefore, the grinder polishes the surface of workpieces such as ships and other structures and buildings using friction by high-speed rotation.

상기와 같이 구성된 종래 의 그라인더의 구성에서는 단순히 가공대상물의 표면에 고속으로 회전하는 연마부재를 마찰시켜 표면을 연마시키는 구성을 갖고 있으므로, 가공 작업 중 많은 양의 분진이 발생되어 작업성이 곤란한 문제점이 있었다.The conventional grinder structured as described above simply has a structure in which the polishing member rotates at high speed on the surface of the object to be polished to polish the surface. Therefore, a large amount of dust is generated during the machining operation, which makes it difficult to work. there was.

즉, 가공대상물의 표면과 연마부재가 고속으로 회전하면서 연마작업을 수행할 때 많은 양의 분진과 돌가루 등이 발생되는 바 상기 분진에 의해 작업자의 작업성을 저하시킬 뿐 아니라 생산성에도 막대한 지장을 초래하는 폐단이 있었던 것이다.That is, a large amount of dust and stone are generated when the surface of the object and the polishing member are rotated at a high speed to generate a large amount of dust and stone. There was a dislocation that caused.

그리고, 연마작업 과정에서 작업자의 시야를 가려 정확한 연마가공작업이 불가능하며, 분진으로부터 작업자를 보호하기 위하여 마스크나 보안경 등의 부대장비가 필요하고, 이러한 부대장비를 착용하더라도 상기 분진으로부터 작업자의 건강을 보호하기에는 미흡한 문제점이 있었던 것이다.In addition, it is impossible to precisely grind the worker's view during the grinding process, and additional equipment such as a mask or goggles is required to protect the worker from dust, and even if the accessory equipment is worn, the worker's health is prevented from the dust. There was not enough to protect.

또, 예로서 작업장이 실내 인테리어 공사의 경우 분진으로 인해 실내가 오염되어 작업 후 일일이 분진 제거작업을 수행해 야 하는 불편함과 아울러, 실내 환경을 오염시키는 원인이 되었던 것이다.In addition, in the case of indoor interior construction, for example, the workplace is contaminated with dust, which causes inconvenience to perform dust removal work after work, and also causes pollution of the indoor environment.

본 발명은 상기한 문제점을 감안하여 창안한 것으로서, 그 목적은 핸드 그라인더의 회전부에 집진수단을 형성하여 작업 중에 발생되는 분진을 즉시 수거하여 작업 효율성을 크게 향상시키고, 작업 환경을 보다 쾌적한 조건으로 개선할 수 있도록 한 집진구조를 갖는 핸드 그라인더를 제공함에 있는 것이다.The present invention has been made in view of the above problems, the object of which is to form a dust collecting means on the rotary part of the hand grinder to immediately collect the dust generated during the work to greatly improve the work efficiency, improve the working environment to more comfortable conditions It is to provide a hand grinder having a dust collecting structure to enable.

상기한 목적을 달성하기 위한 본 발명의 특징은, 내측에 구동수단이 장착된 몸체(10)와, 상기 구동수단의 회전력을 전달하는 회전축(12)이 구비된 헤드(11)와, 상기 헤드(11)의 회전축(12)에 축 고정되어 함께 회전되면서 가공물을 연마하는 연마부재(13)로 구성된 핸드 그라인더에 있어서, 일측에 분진을 외부로 흡입 배출시키는 배출구(20a)가 형성된 커버(20)가 상기 헤드(11)에 결합되고, 커버(20) 내측에 흡입팬(21)이 회전축(12)에 의해 회전되게 결합되며, 상기 커버(20)에는 중앙에 흡입공(22a)이 형성된 덮개(22)가 결합되고, 상기 연마부재(13)에는 다수의 흡입구멍(13a)이 형성되며, 상기 연마부재(13)는 상기 덮개(22)와 이격되어 회전축(12)에 의해 회전되게 결합되며, 상기 연마부재(13)를 감싸는 집진가이드(23)가 상기 커버(20)에 결합되어 구성됨을 특징으로 하는 집진구조를 갖는 핸드 그라인더에 의하여 달성될 수 있는 것이다.Features of the present invention for achieving the above object, the head 10 is provided with a drive means is mounted on the inside, a rotating shaft 12 for transmitting the rotational force of the drive means, and the head ( In the hand grinder composed of a grinding member 13 for rotating the shaft while being fixed to the rotary shaft 12 of 11), the cover 20 is formed with a discharge port 20a for suctioning and discharging dust to one side The cover 22 is coupled to the head 11, the suction fan 21 is rotatably coupled to the inside of the cover 20 by the rotation shaft 12, and the cover 20 has a suction hole 22a formed in the center of the cover 22. ) Is coupled to the polishing member 13, and a plurality of suction holes 13a are formed, and the polishing member 13 is spaced apart from the cover 22 to be rotatably coupled by the rotation shaft 12. Dust collection guide 23 surrounding the polishing member 13 is characterized in that coupled to the cover 20 Having a binary structure that would be achieved by a hand grinder.

이상에서 상술한 바와 같은 본 발명은, 선박 등 각종 구조물 및 각종 건축용 내, 외장재 등의 표면을 연마 가공시 발생되는 분진을 작업공정과 동시에 집진수단을 통해서 외부로 흡입 배출시킬 수 있으므로, 작업 환경을 보다 쾌적한 조건의 개선하며 작업편의성을 향상시킬 수 있고, 작업 중 발생되는 분진을 신속하게 처리하면서 작업을 수행할 수 있으므로, 작업생산성을 향상시킬 수 있으며, 그로 인해 제품의 신뢰성을 향상시킬 수 있는 등 매우 유용한 발명인 것이다In the present invention as described above, since the dust generated during the polishing process of the surface of various structures such as ships and various building materials, exterior materials, etc. can be sucked out and discharged to the outside through the dust collecting means at the same time as the working process, It is possible to improve work convenience and improve work convenience, and to perform work while processing dust generated during work quickly, thereby improving work productivity and thereby improving product reliability. It is a very useful invention

이하, 상기한 목적을 달성하기 위한 바람직한 실시예를 첨부된 도면에 의하여 상세히 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1 내지는 도 4에서 도시한 바와 같이, 본 발명은 내측에 구동수단이 장착된 몸체(10)와, 상기 구동수단의 회전력을 전달하는 회전축(12)이 구비된 헤드(11)와, 상기 헤드(11)의 회전축(12)에 축 고정되어 함께 회전되면서 가공물을 연마하는 연마부재(13)로 구성한다.As shown in Figures 1 to 4, the present invention is the head 10 is provided with a body 10 is equipped with a drive means on the inside, a rotating shaft 12 for transmitting the rotational force of the drive means, and the head It consists of an abrasive member 13 which is fixed to the rotary shaft 12 of 11 and rotates together while polishing the workpiece.

물론 전술한 구성으로 이루어진 핸드 그라인더는 이미 알려진 공지의 기술사상이다.Of course, the hand grinder having the above-described configuration is a known technical idea.

그러나, 본 발명에 있어서 가장 중요한 특징은 상기 헤드(11)에 집진수단을 결합하여 연마 가공 시 발생되는 분진을 작업공정과 동시에 외부로 흡입 배출시켜 작업편의성을 향상시킬 수 있도록 한 것에 있다.However, the most important feature in the present invention is to combine the dust collecting means to the head 11 to inhale and discharge the dust generated during the polishing process to the outside at the same time as the work process to improve the work convenience.

즉, 일측에 분진을 외부로 흡입 배출시키는 배출구(20a)가 형성된 커버(20)를 상기 헤드(11)에 결합한다.That is, the head 20 is coupled to the cover 20 is formed with a discharge port (20a) for suction and discharge dust to the outside on one side.

상기 커버(20)의 내측에는 흡입팬(21)을 회전축(12)에 의해 회전되게 결합한다.The suction fan 21 is coupled to the inside of the cover 20 so as to be rotated by the rotation shaft 12.

상기 커버(20)에는 중앙에 흡입공(22a)을 형성한 덮개(22)를 결합한다.The cover 20 is coupled to the cover 22 having a suction hole (22a) in the center.

상기 연마부재(13)에는 분진을 흡입하는 흡입구멍(13a)을 형성한다.In the polishing member 13, a suction hole 13a for sucking dust is formed.

상기 연마부재(13)는 상기 덮개(22)와 약간의 간격을 두게 이격시켜 회전축(12)에 의해 회전되게 결합한다.The polishing member 13 is rotated by the rotating shaft 12 to be spaced apart from the cover 22 at a slight interval.

상기 연마부재(13)의 주위에는 분진이 외측으로 비산하는 것을 방지하는 집진가이드(23)를 형성하여 상기 커버(20)에 결합한다.A dust collecting guide 23 is formed around the polishing member 13 to prevent dust from scattering to the outside and is coupled to the cover 20.

상기 집진가이드(23)는 연마부재(13)의 높이 에 따라 상하로 조절이 가능하고 열원에 잘 견딜 수 있는 주름관으로 구성하는 것이 바람직하다.The dust collection guide 23 is preferably configured as a corrugated pipe that can be adjusted up and down according to the height of the polishing member 13 and can withstand a heat source well.

미 설명부호 30은 흡입수단, 31은 연결호스이다Reference numeral 30 is a suction means, 31 is a connection hose.

전술한 구성으로 이루어진 본 발명의 작용효과를 설명하면 다음과 같다.Referring to the effects of the present invention made of the above-described configuration is as follows.

먼저 본 발명에 따른 핸드 그라인더를 이용하여 연마작업을 할 때는 커버(20)의 배출구(20a)와 흡입수단(30)을 연결호스(31)로 연결하고 연마작업을 시행하는 것이다.First, when performing a polishing operation using the hand grinder according to the present invention, the outlet 20a and the suction means 30 of the cover 20 are connected to the connection hose 31 and the polishing operation is performed.

본 발명에 따른 핸드 그라인더와 흡입수단(30)을 작동시키고 연마작업을 시행하면 회전축(12)에 의해 연마부재(13)가 회전하면서 선박 등 각종 구조물 및 각종 건축용 내, 외장재 등의 표면을 연마하는 것이다.When the hand grinder and the suction means 30 according to the present invention are operated and the polishing operation is performed, the polishing member 13 is rotated by the rotating shaft 12 to polish various surfaces such as ships and various structures such as ships, interior and exterior materials. will be.

연마시 발생하는 분진은 커버(20) 내측의 흡입팬(21)이 회전축(12)에 의해 회전되면서 흡입력이 발생되어 연마부재(13)의 흡입구멍(13a)과, 연마부재(13)와 덮개(22)의 사이공간으로 분진이 흡입되어 덮개(22)의 흡입공(22a)을 통해 커버(20)의 내측으로 흡입되는 것이다.Dust generated during polishing is generated by the suction fan 21 of the cover 20 as the suction shaft 21 is rotated by the rotary shaft 12 to generate suction force, so that the suction hole 13a of the polishing member 13, the polishing member 13, and the cover. Dust is sucked into the interspace of the 22 and is sucked into the cover 20 through the suction hole 22a of the cover 22.

커버(20)의 내측으로 흡입된 분진은 흡입수단(30)의 흡입력에 의해 커버(20)의 배출구(20a)로 배출되어 연결호스(31)를 통하여 흡음수단으로 흡입되는 것이다.The dust sucked into the inside of the cover 20 is discharged to the outlet 20a of the cover 20 by the suction force of the suction means 30 is sucked into the sound absorbing means through the connection hose 31.

또한 연마부재(13)의 주위를 감싸고 있는 집진가이드(23)에 의해 분진이 집진가이드(23) 밖으로 비산하지 못하고 집진가이드(23) 내에서 커버(20)로 흡입되는 것이다.In addition, dust is sucked into the cover 20 in the dust collection guide 23 by the dust collection guide 23 surrounding the polishing member 13, rather than scattering out of the dust collection guide 23.

이와 같이 연마작업 시 발생되는 분진이 커버(20), 흡입팬(21), 덮개(22) 및 집진가이드(23)로 구성된 집진수단에 의해 흡입되므로 작업편의성을 향상시키고, 작업생산성을 향상시키며, 작업 환경을 보다 쾌적한 조건으로 개선할 수 있는 것이다.Thus, dust generated during the polishing operation is sucked by the dust collecting means composed of the cover 20, the suction fan 21, the cover 22 and the dust collection guide 23 to improve the work convenience, improve the work productivity, The working environment can be improved to a more pleasant condition.

이상에서는 본 발명의 바람직한 실시예에 대하여 도시하고 또한 설명하였으나, 본 발명은 상기한 실시예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 본 발명이 속하는 분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형 실시가 가능한 것은 물론이고, 그와 같은 변경은 기재된 청구범위 내에 있게 된다.Although the preferred embodiments of the present invention have been shown and described above, the present invention is not limited to the above-described embodiments, and the present invention is not limited to the above-described embodiments without departing from the spirit of the present invention as claimed in the claims. Various modifications can be made by those skilled in the art, and such modifications are intended to fall within the scope of the appended claims.

도 1은 본 발명의 일실시예를 예시한 사시도1 is a perspective view illustrating one embodiment of the present invention

도 2는 본 발명의 일실시예를 예시한 분리 사시도Figure 2 is an exploded perspective view illustrating an embodiment of the present invention

도 3은 본 발명의 일실시예를 예시한 단면도3 is a cross-sectional view illustrating an embodiment of the present invention.

도 4는 본 발명의 일실시예를 예시한 사용상태도Figure 4 is a use state diagram illustrating an embodiment of the present invention

* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

10 : 몸체 11 : 헤드10 body 11 head

12 : 회전축 13 : 연마부재12: rotating shaft 13: polishing member

13a : 흡입구멍 20 : 커버13a: suction hole 20: cover

20a : 배출구 21 : 흡입팬20a: outlet 21: suction fan

22 : 덮개 22a : 흡입공22: cover 22a: suction hole

23 : 집진가이드23: dust collection guide

Claims (2)

내측에 구동수단이 장착된 몸체(10)와, 상기 구동수단의 회전력을 전달하는 회전축(12)이 구비된 헤드(11)와, 상기 헤드(11)의 회전축(12)에 축 고정되어 함께 회전되면서 가공물을 연마하는 연마부재(13)로 구성된 핸드 그라인더에 있어서,A body 11 equipped with a driving means therein, a head 11 having a rotating shaft 12 for transmitting the rotational force of the driving means, and a shaft fixed to the rotating shaft 12 of the head 11 to rotate together. In the hand grinder composed of a polishing member 13 for polishing a workpiece while 일측에 분진을 외부로 흡입 배출시키는 배출구(20a)가 형성된 커버(20)가 상기 헤드(11)에 결합되고, 커버(20) 내측에 흡입팬(21)이 회전축(12)에 의해 회전되게 결합되며, 상기 커버(20)에는 중앙에 흡입공(22a)이 형성된 덮개(22)가 결합되고, 상기 연마부재(13)에는 다수의 흡입구멍(13a)이 형성되며, 상기 연마부재(13)는 상기 덮개(22)와 이격되어 회전축(12)에 의해 회전되게 결합되며, 상기 연마부재(13)를 감싸는 집진가이드(23)가 상기 커버(20)에 결합되어 구성됨을 특징으로 하는 집진구조를 갖는 핸드 그라인더.A cover 20 having a discharge port 20a for suctioning and discharging dust to one side is coupled to the head 11, and the suction fan 21 is coupled to the inside of the cover 20 so as to be rotated by the rotation shaft 12. The cover 20 has a cover 22 having a suction hole 22a formed in the center thereof, and a plurality of suction holes 13a are formed in the polishing member 13, and the polishing member 13 is The dust collecting structure 23 is spaced apart from the cover 22 and coupled to the rotary shaft 12, and a dust collecting guide 23 surrounding the polishing member 13 is coupled to the cover 20. Hand grinder. 제 1항에 있어서,The method of claim 1, 상기 집진가이드(23)는 주름관으로 구성됨을 특징으로 하는 집진구조를 갖는 핸드 그라인더.The dust collection guide 23 is a hand grinder having a dust collecting structure, characterized in that consisting of a corrugated pipe.
KR1020090042091A 2009-05-14 2009-05-14 Portable electric grinder having a dust collecting structure KR20100123073A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104975705A (en) * 2015-06-29 2015-10-14 江苏建筑职业技术学院 Dust-free wall grinding device and grinding method
CN107662144A (en) * 2017-11-10 2018-02-06 德清菁英信息科技有限公司 A kind of automobile rod member special grinding apparatus
KR20180063918A (en) * 2016-12-02 2018-06-14 (주)수인테크 Retinispora chip manufacturing equipment with improved production efficiency
CN109746792A (en) * 2019-01-16 2019-05-14 臧晨晨 A kind of stone surface polissoir
CN115847271A (en) * 2022-11-28 2023-03-28 嘉兴春祐精密模具有限公司 Polishing device for fine machining of tungsten steel mold and technology thereof
KR102682757B1 (en) * 2023-05-19 2024-07-08 한국씨엠이엔지(주) Anti-scattering dust cover of schmidt hammer impact surface for safety diagnosis
USD1051526S1 (en) * 2023-04-13 2024-11-12 Harbor Freight Tools Usa, Inc. Handheld polisher tool
USD1052203S1 (en) * 2023-03-17 2024-11-19 Jing Gong Electric cleaning brush
USD1054132S1 (en) * 2023-01-17 2024-12-10 Zhongshan YEDA Plastic Co., Ltd Electric spin scrubber

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104975705A (en) * 2015-06-29 2015-10-14 江苏建筑职业技术学院 Dust-free wall grinding device and grinding method
KR20180063918A (en) * 2016-12-02 2018-06-14 (주)수인테크 Retinispora chip manufacturing equipment with improved production efficiency
CN107662144A (en) * 2017-11-10 2018-02-06 德清菁英信息科技有限公司 A kind of automobile rod member special grinding apparatus
CN109746792A (en) * 2019-01-16 2019-05-14 臧晨晨 A kind of stone surface polissoir
CN115847271A (en) * 2022-11-28 2023-03-28 嘉兴春祐精密模具有限公司 Polishing device for fine machining of tungsten steel mold and technology thereof
CN115847271B (en) * 2022-11-28 2023-09-22 嘉兴春祐精密模具有限公司 Polishing device and process for refining tungsten steel mold
USD1054132S1 (en) * 2023-01-17 2024-12-10 Zhongshan YEDA Plastic Co., Ltd Electric spin scrubber
USD1052203S1 (en) * 2023-03-17 2024-11-19 Jing Gong Electric cleaning brush
USD1051526S1 (en) * 2023-04-13 2024-11-12 Harbor Freight Tools Usa, Inc. Handheld polisher tool
KR102682757B1 (en) * 2023-05-19 2024-07-08 한국씨엠이엔지(주) Anti-scattering dust cover of schmidt hammer impact surface for safety diagnosis

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