CN105234787A - Metal surface uniform film-removing device based on self-compensation - Google Patents
Metal surface uniform film-removing device based on self-compensation Download PDFInfo
- Publication number
- CN105234787A CN105234787A CN201510755852.6A CN201510755852A CN105234787A CN 105234787 A CN105234787 A CN 105234787A CN 201510755852 A CN201510755852 A CN 201510755852A CN 105234787 A CN105234787 A CN 105234787A
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- China
- Prior art keywords
- guide rail
- wire brush
- self
- guideway
- pulley
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Classifications
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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
- B24B27/00—Other grinding machines or devices
- B24B27/033—Other grinding machines or devices for grinding a surface for cleaning purposes, e.g. for descaling or for grinding off flaws in the surface
-
- 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
- B24B27/00—Other grinding machines or devices
- B24B27/0069—Other grinding machines or devices with means for feeding the work-pieces to the grinding tool, e.g. turntables, transfer means
-
- 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
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/25—Drives or gearings; Equipment therefor for compensating grinding wheel abrasion resulting from dressing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Types And Forms Of Lifts (AREA)
- Cleaning In General (AREA)
Abstract
The invention relates to a metal surface uniform film-removing device based on self-compensation. According to the technical scheme, a motor (7) drives a steel wire brush (2) to rotate through a belt (6); and a heavy object block (13) is connected with a guide rail pair (8) through a fixed pulley (12) by virtue of a steel wire rope. An air cylinder (9) is hinged with the right end surface of the guide rail pair (8); height of a stroke valve (1) is regulated by virtue of a height regulator (15), so that a rod to be subjected to film removal can press down a roller wheel of the stroke valve (1), and a valve element of the stroke valve (1) reverses. During the film removal, the steel wire brush (2) is in constant-force contact with the rod to be subjected to film removal under the gravity action of the heavy object block (13), so that self-compensation uniform film removal is realized. When the film removal is completed, the air cylinder (9) pulls the guide rail pair (8) to move rightwards to wait for a rod to be subjected to film removal. When the steel wire brush (2) reaches use limit, the heavy object block (13) is descended to a maximum position for triggering an alarm switch (14), so that an indicator lamp (18) is turned on to remind a worker to replace the steel wire brush (2). The metal surface uniform film-removing device based on self-compensation has the characteristics of low cost, a simple structure, uniform film removal, automatic abrasion gap compensation and high production efficiency.
Description
Technical field
The invention belongs to metal surface except technical field of membrane.Be specifically related to a kind of based on the even film removing device in self-compensating metal surface.
Background technology
Double metallic composite material is a kind of novel process material integrating two kinds of metallic characters, it is the metallic composite utilizing two kinds of metals advantage separately, as copper cover aluminum bimetallic, this metal has that quality is light, electric conductivity is excellent, saving copper resource and the low feature of production cost.Metallurgical binding between atom is formed at interface in order to make two kinds of metals, the oxide-film on surface must be removed, and though existing film removing device can remove surface film oxide, but As time goes on, wire brush attrition, the bar membrane removal effect of different batches there are differences, and causes the product quality produced to differ.In addition, in order to reach membrane removal effect, when wire brush may wear to a certain degree, need the position of manual adjustment film removing device, this adjustment not only reduces the automaticity of whole production line, and each amount regulated is difficult to hold, and this just proposes higher requirement to the working experience of workman.More can affect production efficiency if regulated in process of production, be unfavorable for the raising of economic benefit.Due to the consumption rate of a wire brush in wear process and time and non-linear relation, when can cause initial, regulating time interval be longer, and the subsequent adjustment time interval is shorter, will accurately accomplish timely adjustment, need to observe membrane removal effect frequently, this adds increased the work load of workman.
In sum, there are the following problems for existing film removing device: membrane removal is uneven, and need the wearing clearance of artificial adjustment wire brush, the work load of workman is heavier, higher to artificial adjustment skill requirement, affects production efficiency.
Summary of the invention
The present invention is intended to overcome above-mentioned technological deficiency, object is to provide that a kind of cost is low, structure is simple, evenly membrane removal, auto-compensation wearing clearance and production efficiency high based on the even film removing device in self-compensating metal surface.
For achieving the above object, the technical solution used in the present invention is: this device comprises stroke valve, wire brush, power transmission shaft, belt, motor, guideway, cylinder, guide rail, steel wire rope, fixed pulley, weight block, alarm switch, height adjuster and indicator lamp.
Guide rail is horizontally fixed in frame, and guideway is arranged on guide rail actively.Motor is fixed on the upper plane of guideway right-hand member, and transmission shafts bearing is arranged on the upper plane of guideway left end by bearing block fixed mount, and power transmission shaft is arranged in transmission shafts bearing.Wire brush is arranged on one end of power transmission shaft, and the belt pulley of the belt pulley and motor output shaft that are arranged on the power transmission shaft other end is connected by belt.
Described guideway is rectangular-shaped steel plate, the left end of rectangular-shaped steel plate centrally line has U-shaped mouth, one end of steel wire rope is fixed on the center position of U-shaped mouth medial surface, the other end of steel wire rope is walked around fixed pulley and is connected with weight block, immediately below weight block, alarm switch is housed, the distance between the initial position of weight block and alarm switch is 45 ~ 50mm.Described fixed pulley is fixed in frame, and fixed pulley is positioned on the center line of guide rail.The external part of cylinder is articulated with the centre of form place of guideway right side, and the stiff end of cylinder is horizontally fixed in frame.
Alarm switch is electrically connected with indicator lamp, and indicator lamp is arranged on easy observation place of staff.
Transmission frame comprises base plate, fast pulley, driving wheel and driven pulley, base plate is equipped with driven pulley and driving wheel, and fast pulley is through the left side of support installing at base plate.The angle of fast pulley axis and driving wheel axis is 20 ~ 45 °, and the angle of driven pulley axis and driving wheel axis is 15 ~ 35 °.Treat membrane removal bar be placed in two transmission frames driven pulley, between driving wheel and fast pulley, treat the center line of membrane removal bar and the axis being parallel of wire brush and be positioned at same level.
Fixedly height adjuster is housed in the below of a transmission frame, the axis of height adjuster with treat that the center line of membrane removal bar is positioned at same vertical guide.Stroke valve is equipped with in the upper surface of height adjuster, and during installation, the roller height of stroke valve is concordant with the driving wheel axis of transmission frame, and the roller of stroke valve and the distance of wire brush leading flank are 20 ~ 50mm.
Described cylinder cylinder stroke 55 ~ 90mm.
Weight G>=the 1.5f of described weight block
sn.Wherein: f
sfor the coefficient of friction between guide rail and guideway, N is the gross weight of all parts on guide rail.
Described initial position refer to first dress without the wire brush used and the position when membrane removal bar is tangent.
Described guide rail is the guide rail that 2 Parallel Symmetrics are installed, and the cross sectional shape of guide rail is rectangle or is triangle.
Described height adjuster is by plunger type moving member, and internal thread fixture and handle type screw adjustments form.Plunger type moving member loads the top of internal thread fixture actively, and the bottom of internal thread fixture is threaded with handle type screw adjustments, and the upper inside wall of described internal thread fixture is cylinder, and bottom is internal thread.
The course of work of the present invention is: will treat that membrane removal bar is arranged on transmission frame, and membrane removal bar is depressed to regulate height adjuster that the roller of stroke valve is treated just, and the spool of stroke valve is commutated.When until the roller contact of membrane removal bar not with stroke valve, outside gases at high pressure Ps communicates with the rod chamber of cylinder, and cylinder loads, and piston rod withdrawal, guideway moves right.
When until membrane removal bar and stroke valve roller contact and after being depressed by roller, the spool of stroke valve is commutated, cylinder rod chamber and air conducting, cylinder unload.Weight block is at the drop-down guideway of its Action of Gravity Field to left movement, and wire brush contacts with bar, starts membrane removal, and keeps constant force.When the membrane removal of membrane removal bar is complete, no longer with the roller contact of stroke valve, spool commutates, and cylinder loads, and cylinder draws guideway to move right, and waits for that next root treats membrane removal bar, so circulates.
Along with the membrane removal continued and the continuous wearing and tearing of wire brush, the distance that weight block declines is increasing, when wire brush may wear to can not use time, weight block can drop to extreme position, trigger alarm switch, and indicator lamp is bright, reminds staff to change wire brush.
Owing to adopting technique scheme, the present invention compared with prior art tool has the following advantages:
1, the present invention only relies on the gravity auto-compensation wearing clearance of weight block, and without the need to manual adjustment, compensation range can reach 0 ~ 50mm, therefore structure is simple, easy for installation and reliability is high, improves production efficiency and economic benefit.
2, the present invention is provided with rectangle hollow out mouth at guideway right-hand part, reduces the weight of guideway, improves the response speed of whole device.
3, the present invention is in membrane process, due to automatic adjustment, can keep constant contact force between wire brush and bar, achieve even membrane removal, ensure that the quality of each batch of bar.
4, the present invention is provided with alarm switch, and when wire brush reaches service life, guideway walks to the extreme position that weight block declines, trigger alarm switch, and indicator lamp is bright, reminds staff to change wire brush in time.
5, the present invention is not only applicable to the bar of different-diameter and the bar of unlike material, and is applicable to the removal of the skins covering of the surface such as all kinds of Surface of Rod Bar oxide-film or paint, applied widely, workable.
Therefore, the present invention have that cost is low, structure is simple, membrane removal is even, auto-compensation wearing clearance and the high feature of production efficiency.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is that schematic diagram is looked on a left side of Fig. 1;
Fig. 3 is the schematic top plan view of Fig. 1;
Fig. 4 be Fig. 1 middle guide pair 8 overlook enlarged diagram;
Fig. 5 is the circuit diagram of Fig. 1 alarm switch 14;
Fig. 6 is the connection diagram of stroke valve 1 in Fig. 1 and cylinder 9;
Fig. 7 is the structural representation of height adjuster 15 in Fig. 1;
Fig. 8 is the schematic front view of transmission frame 16 in Fig. 1;
Fig. 9 is the schematic top plan view of Fig. 8.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described, the restriction not to its protection domain:
Embodiment 1
A kind of based on the even film removing device in self-compensating metal surface.As shown in Figure 1, Figure 2 and Figure 3, this device comprises stroke valve 1, wire brush 2, power transmission shaft 3, belt 6, motor 7, guideway 8, cylinder 9, guide rail 10, steel wire rope 11, fixed pulley 12, weight block 13, alarm switch 14, height adjuster 15 and indicator lamp 18.
As shown in Figure 1, Figure 2 and Figure 3, guide rail 10 is horizontally fixed in frame, and guideway 8 is arranged on guide rail 10 actively.Motor 7 is fixed on the upper plane of guideway 8 right-hand member, and transmission shafts bearing 4 is arranged on the upper plane of guideway 8 left end by bearing block fixed mount 5, and power transmission shaft 3 is arranged in transmission shafts bearing 4.Wire brush 2 is arranged on one end of power transmission shaft 3, and the belt pulley being arranged on power transmission shaft 3 other end is connected by belt 6 with the belt pulley of motor 7 output shaft.
As shown in Figure 1, Figure 3 and Figure 4, described guideway 8 is rectangular-shaped steel plate, the left end of rectangular-shaped steel plate centrally line has U-shaped mouth, one end of steel wire rope 11 is fixed on the center position of U-shaped mouth medial surface, the other end of steel wire rope 11 is walked around fixed pulley 12 and is connected with weight block 13, alarm switch 14 is housed immediately below weight block 13, and the distance between the initial position of weight block 13 and alarm switch 14 is 45 ~ 48mm.Described fixed pulley 12 is fixed in frame, and fixed pulley 12 is positioned on the center line of guide rail 10.The external part of cylinder 9 is articulated with the centre of form place of guideway 8 right side, and the stiff end of cylinder 9 is horizontally fixed in frame.
As shown in Figure 5, alarm switch 14 is electrically connected with indicator lamp 18, and indicator lamp 18 is arranged on easy observation place of staff.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 8 and Fig. 9, transmission frame 16 comprises base plate 25, fast pulley 22, driving wheel 23 and driven pulley 24, base plate 25 is equipped with driven pulley 24 and driving wheel 23, and fast pulley 22 is through the left side of support installing at base plate 25.The angle of fast pulley 22 axis and driving wheel 23 axis is 20 ~ 35 °, and the angle of driven pulley 24 axis and driving wheel 23 axis is 15 ~ 25 °.Treat membrane removal bar be placed in two transmission frames 16 driven pulley 24, between driving wheel 23 and fast pulley 22, treat the center line of membrane removal bar and the axis being parallel of wire brush 2 and be positioned at same level.
As shown in Figure 1, Figure 2 and Figure 7, in the below of a transmission frame 16, height adjuster 15 is fixedly housed, the axis of height adjuster 15 with treat that the center line of membrane removal bar is positioned at same vertical guide.Stroke valve 1 is equipped with in the upper surface of height adjuster 15, and during installation, the roller height of stroke valve 1 is concordant with driving wheel 23 axis of transmission frame 16, and the roller of stroke valve 1 and the distance of wire brush 2 leading flank are 20 ~ 35mm.
Described cylinder 9 cylinder stroke 55 ~ 75mm.
Weight G>=the 1.5f of described weight block 13
sn.Wherein: f
sfor the coefficient of friction between guide rail 10 and guideway 8, N is the gross weight of all parts on guide rail 10.
Described initial position refers to the wire brush 2 without use and the position when membrane removal bar is tangent of just dress.
Described guide rail 10 is the guide rail that 2 Parallel Symmetrics are installed, and the cross sectional shape of guide rail 10 is rectangle or is triangle.
As shown in Figure 7, described height adjuster 15 is by plunger type moving member 19, and internal thread fixture 20 and handle type screw adjustments 21 form.Plunger type moving member 19 loads the top of internal thread fixture 20 actively, and the bottom of internal thread fixture 20 is threaded with handle type screw adjustments 21, and the upper inside wall of described internal thread fixture 20 is cylinder, and bottom is internal thread.
Embodiment 2
A kind of based on the even film removing device in self-compensating metal surface.Except following technical parameter, all the other are with embodiment 1:
Distance between the initial position of weight block 13 and alarm switch 14 is 47 ~ 50mm.
The angle of fast pulley 22 axis and driving wheel 23 axis is 30 ~ 45 °, and the angle of driven pulley 24 axis and driving wheel 23 axis is 25 ~ 35 °.
The roller of stroke valve 1 and the distance of wire brush 2 leading flank are 35 ~ 50mm.
Described cylinder 9 cylinder stroke 70 ~ 90mm.
The course of work of this detailed description of the invention is: will treat that membrane removal bar is arranged on transmission frame 16, and membrane removal bar is depressed to regulate height adjuster 15 that the roller of stroke valve 1 is treated just, and the spool of stroke valve 1 is commutated.When until the roller contact of membrane removal bar not with stroke valve 1, as shown in Figure 6, outside gases at high pressure Ps communicates with the rod chamber of cylinder 9, and cylinder 9 loads, and piston rod withdrawal, guideway 8 moves right.
When until membrane removal bar and stroke valve 1 roller contact and after being depressed by roller, the spool of stroke valve 1 is commutated, and cylinder 9 rod chamber and air conducting, cylinder 9 unloads.Weight block 13 is at the drop-down guideway 8 of its Action of Gravity Field to left movement, and wire brush 2 contacts with bar, starts membrane removal, and keeps constant force.When the membrane removal of membrane removal bar is complete, no longer with the roller contact of stroke valve 1, spool commutates, and as shown in Figure 6, cylinder 9 loads, and cylinder 9 draws guideway 8 to move right, and waits for that next root treats membrane removal bar, so circulates.
Along with the membrane removal continued and the continuous wearing and tearing of wire brush 2, the distance that weight block 13 declines is increasing, when wire brush 2 may wear to can not use time, weight block 13 can drop to extreme position, trigger alarm switch 14, indicator lamp 18 is bright, reminds staff to change wire brush 2.
Owing to adopting technique scheme, this detailed description of the invention compared with prior art tool has the following advantages:
1, this detailed description of the invention only relies on the gravity auto-compensation wearing clearance of weight block 13, and without the need to manual adjustment, compensation range can reach 0 ~ 50mm, therefore structure is simple, easy for installation and reliability is high, improves production efficiency and economic benefit.
2, this detailed description of the invention is provided with rectangle hollow out mouth at guideway 8 right-hand part, reduces the weight of guideway 8, improves the response speed of whole device.
3, this detailed description of the invention is in membrane process, due to automatic adjustment, can keep constant contact force between wire brush 2 and bar, achieve even membrane removal, ensure that the quality of each batch of bar.
4, this detailed description of the invention is provided with alarm switch 14, and when wire brush 2 reaches service life, guideway 8 walks to the extreme position that weight block 13 declines, trigger alarm switch 14, and indicator lamp 18 is bright, reminds staff to change wire brush 2 in time.
5, this detailed description of the invention is not only applicable to the bar of different-diameter and the bar of unlike material, and is applicable to the removal of the skins covering of the surface such as all kinds of Surface of Rod Bar oxide-film or paint, applied widely, workable.
Therefore, this detailed description of the invention of this detailed description of the invention tool have that cost is low, structure is simple, membrane removal is even, auto-compensation wearing clearance and the high feature of production efficiency.
Claims (6)
1., based on the even film removing device in self-compensating metal surface, it is characterized in that this device comprises stroke valve (1), wire brush (2), power transmission shaft (3), belt (6), motor (7), guideway (8), cylinder (9), guide rail (10), steel wire rope (11), fixed pulley (12), weight block (13), alarm switch (14), height adjuster (15) and indicator lamp (18);
Guide rail (10) is horizontally fixed in frame, and guideway (8) is arranged on guide rail (10) actively; Motor (7) is fixed on the upper plane of guideway (8) right-hand member, transmission shafts bearing (4) is arranged on the upper plane of guideway (8) left end by bearing block fixed mount (5), and power transmission shaft (3) is arranged in transmission shafts bearing (4); Wire brush (2) is arranged on one end of power transmission shaft (3), is arranged on the belt pulley of power transmission shaft (3) other end and is connected by belt (6) with the belt pulley of motor (7) output shaft;
Described guideway (8) is rectangular-shaped steel plate, the left end of rectangular-shaped steel plate centrally line has U-shaped mouth, one end of steel wire rope (11) is fixed on the center position of U-shaped mouth medial surface, the other end of steel wire rope (11) is walked around fixed pulley (12) and is connected with weight block (13), alarm switch (14) is housed immediately below weight block (13), and the distance between the initial position of weight block (13) and alarm switch (14) is 45 ~ 50mm; Described fixed pulley (12) is fixed in frame, and fixed pulley (12) is positioned on the center line of guide rail (10); The external part of cylinder (9) is articulated with the centre of form place of guideway (8) right side, and the stiff end of cylinder (9) is horizontally fixed in frame;
Alarm switch (14) is electrically connected with indicator lamp (18), and indicator lamp (18) is arranged on easy observation place of staff;
Transmission frame (16) comprises base plate (25), fast pulley (22), driving wheel (23) and driven pulley (24), base plate (25) is equipped with driven pulley (24) and driving wheel (23), fast pulley (22) is through the left side of support installing in base plate (25); The angle of fast pulley (22) axis and driving wheel (23) axis is 20 ~ 45 °, and the angle of driven pulley (24) axis and driving wheel (23) axis is 15 ~ 35 °; Treat membrane removal bar be placed in two transmission frames (16) driven pulley (24), between driving wheel (23) and fast pulley (22), treat the center line of membrane removal bar and the axis being parallel of wire brush (2) and be positioned at same level;
In the below of a transmission frame (16), height adjuster (15) is fixedly housed, the axis of height adjuster (15) with treat that the center line of membrane removal bar is positioned at same vertical guide; Stroke valve (1) is equipped with in the upper surface of height adjuster (15), during installation, the roller height of stroke valve (1) is concordant with driving wheel (23) axis of transmission frame (16), and the roller of stroke valve (1) and the distance of wire brush (2) leading flank are 20 ~ 50mm.
2. according to claim 1 based on the even film removing device in self-compensating metal surface, it is characterized in that described cylinder (9) cylinder stroke 55 ~ 90mm.
3. according to claim 1 based on the even film removing device in self-compensating metal surface, it is characterized in that the weight G>=1.5f of described weight block (13)
sn.Wherein: f
sfor the coefficient of friction between guide rail (10) and guideway (8), N is the gross weight of the upper all parts of guide rail (10).
4. according to claim 1 based on the even film removing device in self-compensating metal surface, it is characterized in that described initial position refer to first dress without the wire brush (2) used and the position when membrane removal bar is tangent.
5. according to claim 1 based on the even film removing device in self-compensating metal surface, it is characterized in that described guide rail (10) is the guide rail that 2 Parallel Symmetrics are installed, the cross sectional shape of guide rail (10) is rectangle or is triangle.
6. according to claim 1 based on the even film removing device in self-compensating metal surface, it is characterized in that described height adjuster (15) is by plunger type moving member (19), internal thread fixture (20) and handle type screw adjustments (21) composition.Plunger type moving member (19) loads the top of internal thread fixture (20) actively, the bottom of internal thread fixture (20) is threaded with handle type screw adjustments (21), the upper inside wall of described internal thread fixture (20) is cylinder, and bottom is internal thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510755852.6A CN105234787B (en) | 2015-11-09 | 2015-11-09 | One kind is based on the uniform film removing device in self-compensating metal surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510755852.6A CN105234787B (en) | 2015-11-09 | 2015-11-09 | One kind is based on the uniform film removing device in self-compensating metal surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105234787A true CN105234787A (en) | 2016-01-13 |
| CN105234787B CN105234787B (en) | 2017-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510755852.6A Expired - Fee Related CN105234787B (en) | 2015-11-09 | 2015-11-09 | One kind is based on the uniform film removing device in self-compensating metal surface |
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| Country | Link |
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| CN (1) | CN105234787B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106272004A (en) * | 2016-10-12 | 2017-01-04 | 上海瑞纽机械股份有限公司 | A kind of Pneumatic constant pressure controlling stain-removing machine for track |
| CN106625190A (en) * | 2016-11-29 | 2017-05-10 | 安徽宝泰特种材料有限公司 | Core rod floatation-type automatic-feeding polishing machine for inner bores |
| CN107243815A (en) * | 2017-07-11 | 2017-10-13 | 中国铁建大桥工程局集团有限公司 | Box girder formwork surface automatically grinding equipment |
| CN110815007A (en) * | 2019-12-14 | 2020-02-21 | 李云龙 | Brick cleaning device |
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| CN204195451U (en) * | 2014-05-09 | 2015-03-11 | 张大飞 | A kind of steel bar rust cleaner |
| CN104647169A (en) * | 2015-02-06 | 2015-05-27 | 黎建军 | Numerical-control linked full-automatic skewed slot processing grinder |
| CN205111531U (en) * | 2015-11-09 | 2016-03-30 | 武汉科技大学 | Automatic even membrane device that removes in compensation wearing and tearing clearance |
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| JPS6154458U (en) * | 1984-09-10 | 1986-04-12 | ||
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106272004A (en) * | 2016-10-12 | 2017-01-04 | 上海瑞纽机械股份有限公司 | A kind of Pneumatic constant pressure controlling stain-removing machine for track |
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| CN106625190A (en) * | 2016-11-29 | 2017-05-10 | 安徽宝泰特种材料有限公司 | Core rod floatation-type automatic-feeding polishing machine for inner bores |
| CN107243815A (en) * | 2017-07-11 | 2017-10-13 | 中国铁建大桥工程局集团有限公司 | Box girder formwork surface automatically grinding equipment |
| CN107243815B (en) * | 2017-07-11 | 2023-10-03 | 中国铁建大桥工程局集团有限公司 | Automatic equipment of polishing in case roof beam template surface |
| CN110815007A (en) * | 2019-12-14 | 2020-02-21 | 李云龙 | Brick cleaning device |
| CN110815007B (en) * | 2019-12-14 | 2021-06-01 | 张晓锋 | Brick cleaning device |
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|---|---|
| CN105234787B (en) | 2017-09-29 |
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