US20080200104A1 - High-efficiency dust collecting device with two gateways - Google Patents

High-efficiency dust collecting device with two gateways Download PDF

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Publication number
US20080200104A1
US20080200104A1 US11/708,709 US70870907A US2008200104A1 US 20080200104 A1 US20080200104 A1 US 20080200104A1 US 70870907 A US70870907 A US 70870907A US 2008200104 A1 US2008200104 A1 US 2008200104A1
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dust
gateway
collecting device
arc
blocking
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Abandoned
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US11/708,709
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Po Chang Chuang
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00—Safety 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
    • B24B55/06—Dust extraction equipment on grinding or polishing machines

Definitions

  • This invention relates to a sand grinder, particularly to one installed with a high-efficiency dust-collecting device with two gateways, able to effectively collect dust or wood flour generated while grinding a wood workpiece.
  • a conventional dust collector 20 is installed between an exit 12 set above a cover 11 of a sand grinder 10 and one side of a roller 13 .
  • the dust collector 20 is provided with a blocking plate 21 , two side plates 22 , a dust blocker 23 and a flexible extender 24 .
  • the side plates 22 formed triangular are fixed at two sides of the blocking plate 21 , respectively provided with an arc-like edge 221 formed in its one side for fixing with the dust blocker 23 , so that a sucking mouth 25 is formed between the dust blocker 23 and the blocking plate 21 to suck powder dust or wood flour made by the roller 13 through the exit 12 to a collector.
  • the exit 12 is located at the intermediate portion of the blocking plate 21 , the powder dust or the wood flour is apt to accumulate at the side plates 22 and in the interface and the gap between the blocking plate 21 and the dust blocker 23 , unable to effectively collect dust.
  • a better sucking is to be achieved, a larger power collector is the only solution, relatively increasing cost.
  • the assembly of the dust collector 20 is complicated and each roller 13 needs a set of the dust collector 2 0 , causing an inconvenience for assembly or operation.
  • the objective of this invention is to offer a high-efficiency dust-collecting device with two gateways for a sand grinder.
  • the main characteristics of the invention are a first gateway set and a second gateway set, which are both formed integrally with a metallic panel.
  • the dust-collecting device is connected with exits of a cover of the sand grinder and above two sanding belt rollers.
  • Each of the gateway sets is provided with an arc-like panel, a blocking plate, and two dust-guiding plates.
  • a gateway is formed between the arc-like panel and the blocking plate so as to suck in the dust or the wood flour generated while grinding a workpiece. The dust or the wood flour is then sucked further to pass through the exits to the collecting device, favored by the dust-guiding plates.
  • the collecting position of the dust collecting device is raised high enough so that the device can effectively collect the dust via help of the dust-guiding plates shaped oblique, keeping the sanding belt rollers free from dust, advancing the processed precision of the workpiece, prolonging the service life of the sanding belt rollers and needing only a relatively small power motor for a reduction of cost.
  • the dust-collecting device is formed integrally by a metallic panel, it is easy to be installed under the cover, providing a simple assembly and a low cost.
  • FIG. 1 is a perspective view of a conventional dust collector
  • FIG. 2 is a side view of the conventional dust collector, showing it being assembled in the sand grinder;
  • FIG. 3 is a perspective view of a sand grinder installed with a high-efficiency dust collecting device in the present invention
  • FIG. 4 is a perspective view of a preferred embodiment of a high-efficiency dust-collecting device with two gateways in the present invention
  • FIG. 5 is a side view of the preferred embodiment of a high-efficiency dust-collecting device with two gateways in the present invention, showing it being assembled in the sand grinder;
  • FIG. 6 is a general illustration of the preferred embodiment of a high-efficiency dust collecting device with two gateways in the present invention, showing a distribution of suction trail;
  • FIG. 7 is a partial detailed illustration of the preferred embodiment of a high-efficiency dust collecting device with two gateways in the present invention, showing how a suction current flows.
  • FIGS. 3 ⁇ 5 show a preferred embodiment of a high-efficiency dust collecting device with two gateways for a sand grinder 3 in the present invention.
  • the sand grinder 3 is composed of a main body 30 , a front sanding belt roller 40 and a rear sanding belt roller 50 located transversely on the top of the main body 30 , a conveying table 60 located under the two sanding belt rollers 40 and 50 , and a cover 70 . So, a workpiece is to be put on the conveying table 60 and ground below and by the front sanding belt roller 40 and the second sanding belt roller 50 in order.
  • the cover 70 is transversely cut with two exits 71 and 72 on its top, connected with a dust collecting device 80 installed under it at one side of each of the front sanding belt roller 40 and the second sanding belt roller 50 .
  • the dust-collecting device 80 is connected with the exits 71 and 72 , provided with a first gateway set 81 and a second gateway set 82 .
  • the first gateway set 81 is formed integrally with a metallic panel and installed at one side of the front sanding belt roller 40 corresponding to the grinding direction of the conveying table 60 .
  • the first gateway set 81 is composed of a first arc-like blocking panel 811 , a first blocking plate 812 and two first dust-guiding plates 813 .
  • the first arc-like blocking panel 811 formed with a certain curvature is fixed at a certain location around the circumference of the front sanding belt roller 40 , having its bottom edge located near the grinding point of the front sanding belt roller 40 .
  • the first blocking plate 812 is obliquely fixed to correspondingly face to the first arc-like blocking panel 811 , spaced apart in a certain distance.
  • first dust-guiding plates 813 are obliquely fixed at two sides of the first arc-like blocking panel 811 and the first blocking plate 812 , so that the space between the first arc-like blocking panel 811 and the first blocking plate 812 makes up a first gateway 814 .
  • the second gateway set 82 is also formed integrally with a metallic panel and installed at one side of the second sanding belt roller 50 corresponding to the grinding direction of the conveying table 60 .
  • the second gateway set 82 is composed of a second arc-like blocking panel 821 , a second blocking plate 822 and two second dust-guiding plates 823 .
  • the second arc-like blocking panel 821 formed in a certain curvature is fixed at a certain location around the circumference of the second sanding belt roller 50 , having its bottom edge located near the grinding point of the second sanding belt roller 50 .
  • the second blocking plate 822 is obliquely fixed to correspondingly face to the second arc-like blocking panel 821 , spaced apart in a certain distance.
  • the second dust-guiding plates 823 are fixed at two sides of the second arc-like blocking panel 821 and the second blocking plate 822 , so that the space between the second arc-like blocking panel 821 and the second blocking plate 822 makes up a second gateway 824 .
  • a connecting member 83 formed in the top of the first gateway set 81 and the second gateway set 82 . Two sides of the connecting member 83 are respectively cut with an opening 84 corresponding respectively to the exits 71 and 72 .
  • the connecting member 83 is provided with plural screw holes 831 for fixing with the bottom of the cover 70 .
  • a positioning member 85 is set at two sides of the first gateway member 81 and the second gateway member 82 respectively, provided with a L-reversed wing 851 extended upward to the bottom of the cover 70 .
  • the wing 851 is provided with two screw holes 852 for two screws 853 to screw with, in order to keep the dust-collecting device 80 positioned fixedly under the bottom of the cover 70 .
  • the connecting member 83 is used to combine together the first gateway set 81 and the second gateway set 82 , positioned fixedly with the bottom of the cover 70 by means of the screws engaged with the screw holes 832 .
  • the openings 84 are connected with the exits 71 and 72 .
  • the dust-collecting device 80 can be fixed under the bottom of the cover 70 . Therefore, the dust-collecting device 80 integrally formed with the metallic panel can be directly installed under the cover 70 .
  • the dust or the wood flour is to be sucked through the first gateway 814 of the first gateway set 81 and the second gateway 824 of the second gateway set 82 .
  • the dust or the wood flour can be quickly sucked up to pass through the exits 71 and 72 and then, collected in the collecting device.
  • the dust or the wood flour is first sucked orderly through the first gateway 814 and the second gateway 824 respectively and then, concentrated to run out of the exits 71 and 72 located at two sides of the cover 70 , able to achieve a high collecting efficiency. So, a rather small power collector can do a good job, relatively reduced in its cost, too.
  • a rather high level of the collecting device can effectively collect the dust via the help of the first dust-guiding plate 813 and the second dust-guiding plate 823 , keeping the front sanding belt roller 40 and the second sanding belt roller 50 free from dust, advancing the processed precision of a workpiece, prolonging the service life of the rollers and needing only a small power motor for a reduction of cost.
  • the dust-collecting device 80 is formed integrally with a metallic panel, so it is easy to be installed under the cover 70 , providing a simple assembly and a low cost, too.

Abstract

A high-efficiency dust collecting device with two gateways is connected with exits of a cover of a sand grinder and above two sanding belt rollers., composed of a first gateway set and a second gateway set, which are both formed integrally with a metallic panel and provided respectively with a first and a second arc-like panel, a first and a second blocking plate, and two first and two second dust-guiding plates. A first and a second gateway are respectively formed between the arc-like panel and the blocking plate so as to suck in the dust or the wood flour generated while grinding a workpiece. The dust or the wood flour is then sucked further to pass through the exits to the collecting device, favored by the dust-guiding plates.

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of the invention
  • This invention relates to a sand grinder, particularly to one installed with a high-efficiency dust-collecting device with two gateways, able to effectively collect dust or wood flour generated while grinding a wood workpiece.
  • 2. Description of the Prior Art
  • Commonly, as shown in FIGS. 1 and 2, a conventional dust collector 20 is installed between an exit 12 set above a cover 11 of a sand grinder 10 and one side of a roller 13. The dust collector 20 is provided with a blocking plate 21, two side plates 22, a dust blocker 23 and a flexible extender 24. The side plates 22 formed triangular are fixed at two sides of the blocking plate 21, respectively provided with an arc-like edge 221 formed in its one side for fixing with the dust blocker 23, so that a sucking mouth 25 is formed between the dust blocker 23 and the blocking plate 21 to suck powder dust or wood flour made by the roller 13 through the exit 12 to a collector. But, because the exit 12 is located at the intermediate portion of the blocking plate 21, the powder dust or the wood flour is apt to accumulate at the side plates 22 and in the interface and the gap between the blocking plate 21 and the dust blocker 23, unable to effectively collect dust. Suppose a better sucking is to be achieved, a larger power collector is the only solution, relatively increasing cost. Moreover, the assembly of the dust collector 20 is complicated and each roller 13 needs a set of the dust collector 2 0, causing an inconvenience for assembly or operation.
    • SUMMARY OF THE INVENTION
  • The objective of this invention is to offer a high-efficiency dust-collecting device with two gateways for a sand grinder.
  • The main characteristics of the invention are a first gateway set and a second gateway set, which are both formed integrally with a metallic panel. The dust-collecting device is connected with exits of a cover of the sand grinder and above two sanding belt rollers. Each of the gateway sets is provided with an arc-like panel, a blocking plate, and two dust-guiding plates. A gateway is formed between the arc-like panel and the blocking plate so as to suck in the dust or the wood flour generated while grinding a workpiece. The dust or the wood flour is then sucked further to pass through the exits to the collecting device, favored by the dust-guiding plates. The collecting position of the dust collecting device is raised high enough so that the device can effectively collect the dust via help of the dust-guiding plates shaped oblique, keeping the sanding belt rollers free from dust, advancing the processed precision of the workpiece, prolonging the service life of the sanding belt rollers and needing only a relatively small power motor for a reduction of cost. Moreover, the dust-collecting device is formed integrally by a metallic panel, it is easy to be installed under the cover, providing a simple assembly and a low cost.
    • BRIEF DESCRIPTION OF DRAWINGS
  • This invention is better understood by referring to the accompanying drawings, wherein:
  • FIG. 1 is a perspective view of a conventional dust collector;
  • FIG. 2 is a side view of the conventional dust collector, showing it being assembled in the sand grinder;
  • FIG. 3 is a perspective view of a sand grinder installed with a high-efficiency dust collecting device in the present invention;
  • FIG. 4 is a perspective view of a preferred embodiment of a high-efficiency dust-collecting device with two gateways in the present invention;
  • FIG. 5 is a side view of the preferred embodiment of a high-efficiency dust-collecting device with two gateways in the present invention, showing it being assembled in the sand grinder;
  • FIG. 6 is a general illustration of the preferred embodiment of a high-efficiency dust collecting device with two gateways in the present invention, showing a distribution of suction trail; and
  • FIG. 7 is a partial detailed illustration of the preferred embodiment of a high-efficiency dust collecting device with two gateways in the present invention, showing how a suction current flows.
    •  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
  • FIGS. 3˜5 show a preferred embodiment of a high-efficiency dust collecting device with two gateways for a sand grinder 3 in the present invention. The sand grinder 3 is composed of a main body 30, a front sanding belt roller 40 and a rear sanding belt roller 50 located transversely on the top of the main body 30, a conveying table 60 located under the two sanding belt rollers 40 and 50, and a cover 70. So, a workpiece is to be put on the conveying table 60 and ground below and by the front sanding belt roller 40 and the second sanding belt roller 50 in order. The cover 70 is transversely cut with two exits 71 and 72 on its top, connected with a dust collecting device 80 installed under it at one side of each of the front sanding belt roller 40 and the second sanding belt roller 50. The dust-collecting device 80 is connected with the exits 71 and 72, provided with a first gateway set 81 and a second gateway set 82.
  • The first gateway set 81 is formed integrally with a metallic panel and installed at one side of the front sanding belt roller 40 corresponding to the grinding direction of the conveying table 60. The first gateway set 81 is composed of a first arc-like blocking panel 811, a first blocking plate 812 and two first dust-guiding plates 813. The first arc-like blocking panel 811 formed with a certain curvature is fixed at a certain location around the circumference of the front sanding belt roller 40, having its bottom edge located near the grinding point of the front sanding belt roller 40. The first blocking plate 812 is obliquely fixed to correspondingly face to the first arc-like blocking panel 811, spaced apart in a certain distance. And, the first dust-guiding plates 813 are obliquely fixed at two sides of the first arc-like blocking panel 811 and the first blocking plate 812, so that the space between the first arc-like blocking panel 811 and the first blocking plate 812 makes up a first gateway 814.
  • The second gateway set 82 is also formed integrally with a metallic panel and installed at one side of the second sanding belt roller 50 corresponding to the grinding direction of the conveying table 60. The second gateway set 82 is composed of a second arc-like blocking panel 821, a second blocking plate 822 and two second dust-guiding plates 823. The second arc-like blocking panel 821 formed in a certain curvature is fixed at a certain location around the circumference of the second sanding belt roller 50, having its bottom edge located near the grinding point of the second sanding belt roller 50. The second blocking plate 822 is obliquely fixed to correspondingly face to the second arc-like blocking panel 821, spaced apart in a certain distance. And, the second dust-guiding plates 823 are fixed at two sides of the second arc-like blocking panel 821 and the second blocking plate 822, so that the space between the second arc-like blocking panel 821 and the second blocking plate 822 makes up a second gateway 824.
  • In addition, there is a connecting member 83 formed in the top of the first gateway set 81 and the second gateway set 82. Two sides of the connecting member 83 are respectively cut with an opening 84 corresponding respectively to the exits 71 and 72. The connecting member 83 is provided with plural screw holes 831 for fixing with the bottom of the cover 70. Further, a positioning member 85 is set at two sides of the first gateway member 81 and the second gateway member 82 respectively, provided with a L-reversed wing 851 extended upward to the bottom of the cover 70. The wing 851 is provided with two screw holes 852 for two screws 853 to screw with, in order to keep the dust-collecting device 80 positioned fixedly under the bottom of the cover 70.
  • As shown in FIGS. 4˜7, the connecting member 83 is used to combine together the first gateway set 81 and the second gateway set 82, positioned fixedly with the bottom of the cover 70 by means of the screws engaged with the screw holes 832. The openings 84 are connected with the exits 71 and 72. Also, by means of the screws 853 fitted through the wings 851 of the positioning member 85, the dust-collecting device 80 can be fixed under the bottom of the cover 70. Therefore, the dust-collecting device 80 integrally formed with the metallic panel can be directly installed under the cover 70. As a workpiece 90 is put on the conveying table 60 and ground under the front sanding belt roller 40 and the second sanding belt roller 50, the dust or the wood flour is to be sucked through the first gateway 814 of the first gateway set 81 and the second gateway 824 of the second gateway set 82. Owing to the high collecting position and the oblique formation of the firsts dust-guiding plate 813 and the second dust-guiding plate 823, the dust or the wood flour can be quickly sucked up to pass through the exits 71 and 72 and then, collected in the collecting device. It is to be noted that the dust or the wood flour is first sucked orderly through the first gateway 814 and the second gateway 824 respectively and then, concentrated to run out of the exits 71 and 72 located at two sides of the cover 70, able to achieve a high collecting efficiency. So, a rather small power collector can do a good job, relatively reduced in its cost, too.
  • The advantages of the invention are described below as can be seen from the foresaid description. First, a rather high level of the collecting device can effectively collect the dust via the help of the first dust-guiding plate 813 and the second dust-guiding plate 823, keeping the front sanding belt roller 40 and the second sanding belt roller 50 free from dust, advancing the processed precision of a workpiece, prolonging the service life of the rollers and needing only a small power motor for a reduction of cost. Second, the dust-collecting device 80 is formed integrally with a metallic panel, so it is easy to be installed under the cover 70, providing a simple assembly and a low cost, too.
  • While the preferred embodiment of the invention has been described above, it will be recognized and understood that various modifications may be made therein and the appended claims are intended to cover all such modifications that may fall within the spirit and scope of the invention.

Claims (4)

1. A high-efficiency dust collecting device with two gateways for a sand grinder, said sand grinder composed of a main body, two sanding belt rollers located transversely across it, a conveying table installed under said sanding belt rollers and a cover that is provided with two exits cut transversely at its two sides, said dust collecting device installed under a bottom of said cover and above said sanding belt rollers, said dust collecting device connected with said exits and comprising:
a first gateway set formed integrally with a metallic panel and installed at one side of one of said sanding belt rollers corresponding to a grinding direction of said conveying table, said first gateway set composed of a first arc-like blocking panel, a first blocking plate and two first dust-guiding plates, said first arc-like blocking panel fixed corresponding to said first blocking plate, said first dust-guiding plates fixed obliquely at two sides of said first arc-like blocking panel and said first blocking plate to keep a space formed between said first arc-like blocking panel and said first blocking plate to function as a first gateway;
a second gateway set formed integrally with a metallic panel and installed at one side of the other of said sanding belt rollers corresponding to a grinding direction of said conveying table, said second gateway set composed of a second arc-like blocking panel, a second blocking plate and two second dust-guiding plates, said second arc-like blocking panel fitted corresponding to said second blocking plate, said second dust-guiding plates fitted obliquely at two sides of said second arc-like blocking panel and said second blocking plate to keep a space formed between said second arc-like blocking panel and said second blocking plate to function as a second gateway; and
said first gateway and said second gateway able to suck in dust or wood flour generated when said sanding belt rollers are grinding a workpiece, said dust or said wood flour then running along said first dust-guiding plate and said second dust-guiding plate through said exits to said collecting device.
2. A high-efficiency dust collecting device with two gateways for a sand grinder as claimed in claim 1, wherein a positioning member is formed longitudinally across two sides of said first gateway set and said second gateway set respectively, provided with two screw holes for fixing with a side bottom of said cover.
3. A high-efficiency dust collecting device with two gateways for a sand grinder as claimed in claim 1, wherein a connecting member is formed longitudinally on top of said first gateway set and said second gateway set, provided with a preset number of screw holes for fixing with a bottom of said cover.
4. A high-efficiency dust collecting device with two gateways for a sand grinder as claimed in claim 1, wherein two sides of said connecting member are cut respectively with an opening positioned to correspondingly face a lower portion of said exit.
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Cited By (21)

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US20090298402A1 (en) * 2008-05-30 2009-12-03 Sebastian Guillen Cobos Surface grinding machine
US20110011702A1 (en) * 2009-07-14 2011-01-20 Jansson Claes E Material sample collector
CN102335860A (en) * 2011-08-07 2012-02-01 杜广智 Device used for polishing working procedure
CN105364718A (en) * 2015-11-09 2016-03-02 大冶特殊钢股份有限公司 Connecting device for connecting grinding and polishing machines with bag-type dust removal device
CN105983907A (en) * 2016-07-25 2016-10-05 无锡市曙光高强度紧固件有限公司 Automatic dustproof polishing machine
CN106112773A (en) * 2016-08-22 2016-11-16 苏州市华宁机械制造有限公司 A kind of cutting machine of band dust arrester
CN107984336A (en) * 2017-12-04 2018-05-04 李本根 A kind of construction machinery arc part grinding apparatus
CN108436686A (en) * 2018-05-31 2018-08-24 余燕 A kind of timber grinding device
CN108942457A (en) * 2018-07-16 2018-12-07 湖北荣宝电子科技有限公司 Grinding device is used in a kind of processing of circuit board
CN110877262A (en) * 2019-12-13 2020-03-13 湖州林立木业有限公司 Wood grinding device with dust suppression and removal functions based on negative pressure principle
CN111805352A (en) * 2020-06-28 2020-10-23 安庆市悦发管业有限公司 Surplus bits of working of plastics processing of polishing absorb filling equipment
CN111958405A (en) * 2020-08-18 2020-11-20 陈忠喜 Sheet metal wire drawing processingequipment
CN111993171A (en) * 2020-08-28 2020-11-27 成都筷筷落商贸有限公司 Automatic polishing equipment
CN112123068A (en) * 2020-09-14 2020-12-25 无锡沃立科技有限公司 Preshrinking machine rubber blanket is polished and is used dust collector
CN112428090A (en) * 2020-11-23 2021-03-02 娄底市新越鼎建材科技有限公司 Grinding device for building material
CN112571543A (en) * 2020-12-09 2021-03-30 泰和县祥峰木艺制品有限公司 High-end timber stair carving embryonic material surface smoothing device
CN112676976A (en) * 2020-12-23 2021-04-20 武汉市弘巍利精密机械有限公司 Auxiliary conveying device for machining of clamping rods
CN112720136A (en) * 2020-12-09 2021-04-30 清远楚江铜业有限公司 Copper strips limit portion side milling device
CN113370030A (en) * 2021-06-25 2021-09-10 安徽美天新材料科技有限公司 High strength aluminum alloy grinding device
USD943649S1 (en) * 2020-08-05 2022-02-15 Mao Shan Machinery Industrial Co., Ltd. Dust collection cover of drum sander
CN114083435A (en) * 2021-11-22 2022-02-25 山东新大陆橡胶科技有限公司 Cleaning and dust removing device for rubber tire processing

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US20090298402A1 (en) * 2008-05-30 2009-12-03 Sebastian Guillen Cobos Surface grinding machine
US20110011702A1 (en) * 2009-07-14 2011-01-20 Jansson Claes E Material sample collector
US8104605B2 (en) 2009-07-14 2012-01-31 Jansson Claes E Material sample collector
CN102335860A (en) * 2011-08-07 2012-02-01 杜广智 Device used for polishing working procedure
CN105364718A (en) * 2015-11-09 2016-03-02 大冶特殊钢股份有限公司 Connecting device for connecting grinding and polishing machines with bag-type dust removal device
CN105983907A (en) * 2016-07-25 2016-10-05 无锡市曙光高强度紧固件有限公司 Automatic dustproof polishing machine
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CN107984336A (en) * 2017-12-04 2018-05-04 李本根 A kind of construction machinery arc part grinding apparatus
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CN111805352A (en) * 2020-06-28 2020-10-23 安庆市悦发管业有限公司 Surplus bits of working of plastics processing of polishing absorb filling equipment
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CN111958405A (en) * 2020-08-18 2020-11-20 陈忠喜 Sheet metal wire drawing processingequipment
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CN112123068A (en) * 2020-09-14 2020-12-25 无锡沃立科技有限公司 Preshrinking machine rubber blanket is polished and is used dust collector
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CN112720136A (en) * 2020-12-09 2021-04-30 清远楚江铜业有限公司 Copper strips limit portion side milling device
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CN113370030A (en) * 2021-06-25 2021-09-10 安徽美天新材料科技有限公司 High strength aluminum alloy grinding device
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