CN102133951A - Asphalt barrel opening machine - Google Patents
Asphalt barrel opening machine Download PDFInfo
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- CN102133951A CN102133951A CN 201110042066 CN201110042066A CN102133951A CN 102133951 A CN102133951 A CN 102133951A CN 201110042066 CN201110042066 CN 201110042066 CN 201110042066 A CN201110042066 A CN 201110042066A CN 102133951 A CN102133951 A CN 102133951A
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- opening according
- flat frame
- dolly
- asphalt machine
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Abstract
The invention discloses an asphalt barrel opening machine comprising a vertical frame, a flat frame, a first driving device, a second driving device, a cutter holder, a cutter head and a positioning and clamping device. The cutter holder is mounted at the lower end of an output shaft and can rotate under the driving of the second driving device by using the axis of the output shaft as a rotating axis; the cutter head is mounted on the cutter holder through a mounting seat and forms a circular cutting locus under the driving of the cutter holder; the cutter head has the freedom degree of autorotation; and the positioning and clamping device is arranged on the vertical frame part below the flat frame and is used for positioning and clamping an asphalt barrel to be opened. The invention can greatly improve the barrel-opening efficiency and can effectively lessen the influence of scrap iron on asphalt quality.
Description
Technical field
The present invention relates to a kind of equipment of bottled asphalt being driven bucket.
Background technology
In China, the coastal region in east China and land transport adopt bulk asphalt mostly than the highway engineering asphalt pavement construction of developed regions, and its transportation mode mainly is the asphalt truck transportation that has heating arrangement, and makes pitch be in fluid state.But, in the coastland of the middle and later periods nineties in last century and present remote mountain areas and the highway engineering asphalt pavement construction of land transport low developed area adopt the barreled solid bitumen mostly because its compare with bulk asphalt traffic cost low, be convenient to deposit and store, be convenient to have bad luck, the transportation of water route, land route is compatible; Again because of it is a solid, own loss is little, the requirement of transport temperature and time is not subjected to the influence of weather conditions, and the security risk in the transportation is lower.So, extensively adopted by the part southern area.
In highway engineering asphalt coating enterprise, be that the project of barreled solid bitumen all can be thought a relatively stubborn problem if run into raw MAT'L, wherein a Zui Da difficult problem is how solid bitumen to be taken out from the pitch bucket.
The Shanghai and Nanjing express highway that nineteen ninety-five to 1997 year the applicant undertakes the construction of in Nanjing, Jiangsu Province, calendar year 2001 to 2002 the pears temperature express highway A12 contract section undertaken the construction of in Shangrao, Jiangxi of year my company, urban construction bridge in Beijing was built Hubei Jing Yi express highway pavement three contract section that Group Co.,Ltd undertakes the construction of in 2006 to 2007, Hubei Jing Yi express highway pavement two contract section that east, 2006 to 2007 Wuhan cross-channel bridge Engineering Co., Ltd undertakes the construction of, so far the Sichuan Ya Lu express highway P4 contract section that Sichuan Panzhihua construction of road and bridge Group Co.,Ltd in 2009 undertakes the construction of, so far the projects such as Sichuan Ya Lu express highway P5 contract section undertaken the construction of of Jiangxi Province Traffic Engineering Group Co.,Ltd in 2009, the raw MAT'L that adopts all is the barreled solid bitumen, all is to adopt the mode of operation of manually opening bung opening in the middle of the process of bung.The so-called mode of operation of manually opening bung is exactly: manually utilize hand hammer and homemade steel knife (to make of old roadlice spring plate, be polished into cutter shape to one with inclined-plane) open bung, artificial adept hammer firmly knocks the another side of steel knife, end face circumference around the pitch bucket knocks a circle, thereby open bung, find that through investigation at present this to open barrel mode very general, but manually open the bung mode of operation significant disadvantages arranged:
1, mode of operation is very original, and it is many to drop into manpower: need to drop into 15 people to about 25 people in manually opening the bung mode of operation;
2, speed is slow, efficient is low: adopting when manually opening the bung mode of operation, opened a bung in everyone average 5-7 minute, count that rest halt is average opens a bung more than 10 minutes in:
3, expense muscle power: operating worker need expend a large amount of muscle power when the bung mode of operation was manually opened in employing, and needed sufficient rest halt;
4, expense fund: adopt and to inject capital into often when manually opening the bung mode of operation, be mainly reflected in that the production process labour intensive causes wage and aspects such as other fund inputs are big, power tool, safety precaution.
5, noise is big: adopt when manually opening the operation of bung mode of operation, it is very big manually to knock the sound of steel knife and noise that steel knife is cut brokenly bung, operation field almost be can't hear other sound, causes sound to pollute to ambient environment, and the safety of operating worker is caused potential safety hazard.
6, personnel are easily injured, and personnel's job safety is difficult to be protected: operating worker was injured easily when the operation of bung mode of operation was manually opened in employing.Knocking steel knife is hand and the arm that hurts operating worker easily; The fragment of steel knife and broken bucket skin hurts workman's eyes easily, and easier arm to the workman causes scuffing; The pitch bucket is if astasia also can cause the workman and injure by a crashing object, damages.
7, iron filings are arranged, influential to raw-material quality: as to adopt when manually holding the operation of bung mode of operation and can produce a lot of iron filings, wearing and tearing, obstruction that these iron filings drop and can cause asphalt pump in pitch, serious meeting causes damp production, the mixing plant asphalt pump quits work, and follow-up stirring work is brought great production hidden danger.
Summary of the invention
Therefore, originally open the present situation of bucket, a kind of machine for opening that can significantly improve out barrel efficient is provided, and can have reduced the influence of iron filings effectively asphalt quality at present bottled asphalt.
The technical solution used in the present invention is:
Bottled asphalt machine for opening of the present invention, it comprises:
Stand, main body is provided with vertically;
Flat frame, on even keel are assemblied in the described stand, and cooperate formation to move up and down pair with described stand;
First actuating device drives described the moving as the flat frame of movable part that move up and down in the pair;
Second actuating device is installed on the described flat frame, and output shaft straight down;
Knife rest is installed on the lower end of described output shaft, can be that pivot center rotates under the driving of described second actuating device with the axis of described output shaft;
Cutterhead is installed on the described knife rest and forms circular cutting track under the drive of described knife rest by mount pad, and this cutterhead has the degree of freedom of rotation; And
Positioning clamping device is arranged on the stand part of described flat frame below, and the pitch bucket for the treatment of out bucket positions and clamps.
According to the present invention, because the construction of an asphalt concrete pavement, easily need several ten thousand barrels pitch, therefore, the present invention mainly starts with from the efficient that the pitch bucket is driven bucket, and according to technical scheme of the present invention, the pitch bucket carries out the fast speed location by positioning clamping device and clamps, by the motion of cutterhead the pitch bucket is cut then, efficient improves greatly.General 3 people of maximum needs of its operation, whole efficiency is equivalent to the efficient that about 30 people manually drive bucket.
Because the roll extrusion of driving bucket and be by cutterhead realizes, does not need the artificial operation of knocking, and has avoided therefore injured possibility of personnel.
And the whole notch geometry rule that the cutterhead roll extrusion forms, otch integral body, and otch to step on the limit downward, be not easy the workman is produced injury, reduced workman's damage rate effectively, ensured operating personnel's safety.
Selection about cutterhead, find through long-term experiment, cutterhead is zero with the relative velocity at the position of the contact point of staving down in working order, by the friction rotation, form the state that a kind of pressure is cut, can not produce iron filings, and cutter and contact site produce that the situation of relative motion all can produce iron filings and the quality that influences pitch, cutterhead is selected can guarantee can not pollute pitch because of cutting.
And also very easy according to the bottled asphalt machine for opening operation of technical solution of the present invention, one is the quick condition of the flat frame of operation, adjusts the position of pitch bucket besides, and labour intensity is very low.
Above-mentioned bottled asphalt machine for opening also comprises the base that is assembled together with described stand, and is provided with dolly on base, wherein, dolly cooperate with described base and have near or away from the degree of freedom on first direction of stand; Simultaneously, dolly is provided with axis and is used to carry the roller that is parallel to described first direction of waiting out barrel pitch bucket.
Above-mentioned bottled asphalt machine for opening, described base is a bathtub construction, and the both sides of described first direction respectively form a rail groove in groove, and the notch of two rail grooves is relative;
Described dolly is a wheeled carriage, and wherein the wheel of every side is matched with the rail groove of same side;
Two rail grooves at least one are provided with the baffle plate that is used for dolly is crossed stroke limit at the end away from described stand.
Above-mentioned bottled asphalt machine for opening, described positioning clamping device comprise by three curved structures of main body of bearing pin bonded assembly successively, under the running condition, form circular clip just.
Above-mentioned bottled asphalt machine for opening, comprise in the described structure by bearing pin and be installed on first structure in the described stand, correspondingly, cooresponding successively structure is second structure, the 3rd structure, wherein the end of the 3rd structure is provided with one and is tangential to the connecting portion of described clip, and is provided with a bayonet lock on this connecting portion;
Correspondingly, in described stand, be provided with structural portion, and be provided with the ratchet of being furnished with overriding clutch that teeth groove cooperates with described bayonet lock, and drive the handle that described ratchet rotates described connecting portion guiding.
Above-mentioned bottled asphalt machine for opening, the top of described stand are formed with a vertical bar hole, and described flat this bar hole of frame extend through also is solidly installed with the plate of the opposite side that is arranged on this flat frame place side.
Above-mentioned bottled asphalt machine for opening, described first actuating device comprise the tooth bar that is arranged on the described plate and be arranged in the stand and with described tooth bar gears in mesh, the gear wheel shaft of its middle gear links to each other with a crank.
Above-mentioned bottled asphalt machine for opening, also comprise an end be connected to be arranged on described stand top, the other end is connected to the reset attachment on the described flat frame.
Above-mentioned bottled asphalt machine for opening, described reset attachment are extension spring.
Above-mentioned bottled asphalt machine for opening, described second actuating device are the motor and the reductor of attaching troops to a unit.
Description of drawings
Below in conjunction with Figure of description in detail technical scheme of the present invention is described in detail, makes those skilled in the art more be expressly understood technical scheme of the present invention, wherein:
Fig. 1 is for opening the structural representation of machine according to a kind of wound packages pitch of technical solution of the present invention.
Fig. 2 is a kind of structural representation of base and dolly mated condition.
Among the figure: 1, stand, 2, extension spring, 3, gear, 4, motor, 5, reductor, 6, output shaft, 7, flat frame, 8, knife rest, 9, mount pad, 10, cutterhead, 11, bayonet lock, the 12, the 3rd structure, 13, bearing pin, 14, first structure, 15, bearing pin, 16, roller, 17, base, 18, crank, 19, tooth bar, 20, rail groove, 21, wheel, 22, dolly, 23, baffle plate, 24, pedestal.
The specific embodiment
With reference to explanation accompanying drawing 1, it shows a kind of bottled asphalt machine for opening, and its basic structure is that it comprises:
Stand 1, main body is provided with vertically;
First actuating device drives described the moving as the flat frame of movable part that move up and down in the pair;
Second actuating device is installed on the described flat frame 7, and output shaft 6 straight down;
Knife rest 8 is installed on the lower end of described output shaft 8, can be that pivot center rotates under the driving of described second actuating device with the axis of described output shaft;
Cutterhead 10 is installed on the described knife rest 8 and forms circular cutting track under the drive of described knife rest by mount pad 9, and this cutterhead has the degree of freedom of rotation; And
Positioning clamping device is arranged on the stand part of described flat frame 7 belows, and the pitch bucket for the treatment of out bucket positions and clamps.
Wherein: stand is main support, is used for supporting flat frame, and is formed with the track that flat frame 7 moves up and down, not high to its structural requirement in theory, mainly be that it needs enough structural strengths and rigidity, rigidity especially is to guarantee the homogeneity of cutterhead cutting, therefore, under the necessary situation, can be arranged in the gusseted structure that does not influence the turnover of pitch bucket, certainly, if the structural strength of stand is enough high, also can adopt the flat frame that makes as shown in Figure 1 to be in the structure of cantilever beam state.Even if the cantilever beam state in order to reduce the degree of flexibility of flat frame, also can adopt such as the mode of hauling rope or the mode of diagonal ligament and form supplemental support.
And flat frame 7 then provides a support platform, and in view of the above as can be known, its structural requirement is not high yet, as long as can guarantee the strength and stiffness of structure, design parameters can be with reference to the weight of first actuating device.
About cutterhead, the front was mentioned, and need guarantee as much as possible that cutting type cutterhead contact point part is in the relative static conditions with cutting part basically, all can use such as similar cutter.
About described stand 1, consider the alerting ability of use, can independently be provided with, under running condition, be configured on installing component or the miscellaneous equipment, this opens machine can also have independently understructure, it also comprises the base 17 that is assembled together with described stand 1 as shown in Figure 1, base can be simple horseshoe structure, in other words conj.or perhaps simple U type structure, the pitch bucket can directly be advanced in the U type mouth, form the location of simple and fast, and pitch bucket specification is consistent, manufactures and designs very simple.
As a further alternative, dolly 22 can be set on base, wherein, dolly cooperate with described base and have near or away from the degree of freedom on first direction of stand; Simultaneously, dolly is provided with axis and is used to carry the roller that is parallel to described first direction 21 of waiting out barrel pitch bucket.The pitch bucket just can have the adjustment degree of freedom of two quadratures like this, makes things convenient for the quick adjusting of pitch bucket, clamps by positioning clamping device then, forms the fast speed location, clamps then.
Because dolly will form one and adjust degree of freedom, simple structure is dolly and base formation track pair, and certainly, so long as dolly generally all has the basic structure that realizes linear running at least, this is understanding very easily and realizes.
With reference to Figure of description 2, preferable, described base 17 is a bathtub construction, and respectively to form the notch of a rail groove 20, two rail grooves relative in the both sides of described first direction in groove, to guarantee the stationarity of trolley travelling, can also improve anti-lotus ability;
Described dolly is a wheeled carriage, and wherein the wheel of every side is matched with the rail groove of same side;
Two rail grooves at least one are provided with the baffle plate 23 that is used for dolly is crossed stroke limit at the end away from described stand 1, prevent dolly disengagement base, guarantee the simplicity of operation.
The basic structure of pitch bucket is that it has equivalent circular cylindricality structure, generally also have several and strengthen projection, its location belongs to the location of the part of column construction, obviously, the registration device that meets column construction spare can be realized the location to the pitch bucket, such as the V-slot structure.As for clamping, the basic design of mechanical clamp is installed, for the V-slot structure, only need such as pressing plate, just can realize clamping in constraint that prevents the pitch bucket away from V-slot of configuration.
Further, as a kind of preferable selection, have in pitch bucket specification unanimity, therefore, can carry out the setting of anchor clamps according to the characteristic of the cylindrical structure of pitch bucket, such as adopting two semi-round anchor clamps to match clampings, promptly can realize the location, can also realize clamping, preferably, described positioning clamping device comprises by three curved structures of main body of bearing pin 13 bonded assembly successively, under the running condition, forms circular clip just, simple in structure, under open mode, anchor clamps have bigger operational space, guarantee the fast speed loading and unloading.
Preferably, comprise in the described structure by bearing pin 15 and be installed on first structure in the described stand, form a rocker, that is to say that whole positioning clamping device can arrange, guarantee bigger operational space, correspondingly, cooresponding successively structure is second structure, the 3rd structure, wherein the end of the 3rd structure is provided with one and is tangential to the connecting portion of described clip, and is provided with a bayonet lock 11 on this connecting portion;
Correspondingly, in described stand 1, be provided with structural portion, and be provided with the ratchet of being furnished with overriding clutch that teeth groove cooperates with described bayonet lock 11, and drive the handle that described ratchet rotates described connecting portion guiding.
So the pitch bucket is shifted onto the position, just can move bayonet lock to position, just snap in the teeth groove, swing handle just can be strained gradually then, and when needs unclamped, the unidirectional inhibiting device of contact ratchet just can be removed clamping, operates very quick.
As a further alternative, the top of described stand 1 is formed with a vertical bar hole, with reference to Figure of description 1, described flat this bar hole of frame extend through also is solidly installed with the plate of the opposite side that is arranged on this flat frame place side, just the main body of flat frame and plate branch occupy the both sides of stand, are convenient to the integral intensity design.
A kind of selection of optimization, described first actuating device comprise the tooth bar that is arranged on the described plate 19 and be arranged in the stand and with described tooth bar gears in mesh 3, the gear wheel shaft of its middle gear links to each other with a crank 18, and is simple in structure, easy to operate.
Further, also comprise an end be connected to be arranged on described stand 1 top, the other end is connected to the reset attachment on the described flat frame, reset attachment in this structure can reduce labor intensity with the mode that is equipped with active force, simultaneously, cooperate above-mentioned plate and flat frame branch to occupy the structure of stand both sides, can reduce plate because the existence of overturning couple and the friction force bigger with stand improves service life and maintainability.
Preferably, described reset attachment is extension spring 2, and is simple in structure, and configuration is convenient.
The selection of first actuating device and second actuating device is all very simple, because its mode of motion is very simple, especially second actuating device just provides rotation, and therefore, the simplest selection is that described second actuating device is the motor 4 and the reductor 5 of attaching troops to a unit.
In addition, consider that to carry out the big multi-state of occasion that the pitch bucket opens more abominable, therefore, simplified structure should be the emphasis of considering.
Claims (10)
1. bottled asphalt machine for opening is characterized in that it comprises:
Stand (1), main body is provided with vertically;
Flat frame (7), on even keel are assemblied in the described stand (1), and cooperate formation to move up and down pair with described stand;
First actuating device drives described the moving as the flat frame of movable part that move up and down in the pair;
Second actuating device is installed on the described flat frame (7), and output shaft (6) straight down;
Knife rest (8) is installed on the lower end of described output shaft (8), can be that pivot center rotates under the driving of described second actuating device with the axis of described output shaft;
Cutterhead (10) is installed on by mount pad (9) that described knife rest (8) is gone up and form circular cutting track under the drive of described knife rest, and this cutterhead has the degree of freedom of rotation; And
Positioning clamping device is arranged on the stand part of described flat frame (7) below, and the pitch bucket for the treatment of out bucket positions and clamps.
2. bottled asphalt machine for opening according to claim 1, it is characterized in that: also comprise the base (17) that is assembled together with described stand (1), and on base, be provided with dolly (22), wherein, dolly cooperate with described base and have near or away from the degree of freedom on first direction of stand; Simultaneously, dolly is provided with axis and is used to carry the roller that is parallel to described first direction (21) of waiting out barrel pitch bucket.
3. bottled asphalt machine for opening according to claim 2 is characterized in that: described base (17) is a bathtub construction, and the both sides of described first direction respectively form a rail groove (20) in groove, and the notch of two rail grooves is relative;
Described dolly is a wheeled carriage, and wherein the wheel of every side is matched with the rail groove of same side;
Two rail grooves at least one are provided with the baffle plate (23) that is used for dolly is crossed stroke limit at the end away from described stand (1).
4. bottled asphalt machine for opening according to claim 1 is characterized in that: described positioning clamping device comprises by three curved structures of main body of bearing pin (13) bonded assembly successively, under the running condition, forms circular clip just.
5. bottled asphalt machine for opening according to claim 4, it is characterized in that: comprise in the described structure by bearing pin being installed on first structure in the described stand, correspondingly, cooresponding successively structure is second structure, the 3rd structure, wherein the end of the 3rd structure is provided with one and is tangential to the connecting portion of described clip, and is provided with a bayonet lock (11) on this connecting portion;
Correspondingly, in described stand (1), be provided with structural portion, and be provided with the ratchet of being furnished with overriding clutch that teeth groove cooperates with described bayonet lock (11), and drive the handle that described ratchet rotates described connecting portion guiding.
6. bottled asphalt machine for opening according to claim 1 is characterized in that: the top of described stand (1) is formed with a vertical bar hole, and described flat this bar hole of frame extend through also is solidly installed with the plate of the opposite side that is arranged on this flat frame place side.
7. bottled asphalt machine for opening according to claim 6, it is characterized in that: described first actuating device comprise the tooth bar (19) that is arranged on the described plate and be arranged in the stand and with described tooth bar gears in mesh (3), the gear wheel shaft of its middle gear links to each other with a crank (18).
8. bottled asphalt machine for opening according to claim 7 is characterized in that: also comprise an end be connected to be arranged on described stand (1) top, the other end is connected to the reset attachment on the described flat frame.
9. bottled asphalt machine for opening according to claim 8 is characterized in that: described reset attachment is extension spring (2).
10. bottled asphalt machine for opening according to claim 1 is characterized in that: described second actuating device is the motor (4) and the reductor (5) of attaching troops to a unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100420663A CN102133951B (en) | 2011-02-22 | 2011-02-22 | Asphalt barrel opening machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100420663A CN102133951B (en) | 2011-02-22 | 2011-02-22 | Asphalt barrel opening machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102133951A true CN102133951A (en) | 2011-07-27 |
| CN102133951B CN102133951B (en) | 2012-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100420663A Active CN102133951B (en) | 2011-02-22 | 2011-02-22 | Asphalt barrel opening machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102133951B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103419980A (en) * | 2013-07-26 | 2013-12-04 | 广西众昌树脂有限公司 | Barreled gum rosin opening device |
| CN103935573A (en) * | 2014-05-05 | 2014-07-23 | 龙岩卓越新能源股份有限公司 | Barrel breaking device for barreled waste oil |
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| US3950801A (en) * | 1974-12-06 | 1976-04-20 | Marvin Glass & Associates | Combination jar and can opener |
| JPH01182289A (en) * | 1987-12-28 | 1989-07-20 | Daigo Takamura | Drum can opener |
| JPH10139095A (en) * | 1996-11-08 | 1998-05-26 | Shinetsu Kasei Kk | Device for opening drum can |
| JP2000053192A (en) * | 1998-08-06 | 2000-02-22 | Seratomu:Kk | Device for opening drum can |
| JP2000079990A (en) * | 1998-08-31 | 2000-03-21 | Pentel Kk | Can lid opening device |
| CN201598155U (en) * | 2010-02-09 | 2010-10-06 | 胡海明 | Electric can opener |
| CN201980960U (en) * | 2011-02-22 | 2011-09-21 | 山东省路桥集团有限公司 | Barreled asphalt opener |
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2011
- 2011-02-22 CN CN2011100420663A patent/CN102133951B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3950801A (en) * | 1974-12-06 | 1976-04-20 | Marvin Glass & Associates | Combination jar and can opener |
| JPH01182289A (en) * | 1987-12-28 | 1989-07-20 | Daigo Takamura | Drum can opener |
| JPH10139095A (en) * | 1996-11-08 | 1998-05-26 | Shinetsu Kasei Kk | Device for opening drum can |
| JP2000053192A (en) * | 1998-08-06 | 2000-02-22 | Seratomu:Kk | Device for opening drum can |
| JP2000079990A (en) * | 1998-08-31 | 2000-03-21 | Pentel Kk | Can lid opening device |
| CN201598155U (en) * | 2010-02-09 | 2010-10-06 | 胡海明 | Electric can opener |
| CN201980960U (en) * | 2011-02-22 | 2011-09-21 | 山东省路桥集团有限公司 | Barreled asphalt opener |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103419980A (en) * | 2013-07-26 | 2013-12-04 | 广西众昌树脂有限公司 | Barreled gum rosin opening device |
| CN103419980B (en) * | 2013-07-26 | 2015-11-04 | 广西众昌树脂有限公司 | Barreled gum resin tin opener |
| CN103935573A (en) * | 2014-05-05 | 2014-07-23 | 龙岩卓越新能源股份有限公司 | Barrel breaking device for barreled waste oil |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102133951B (en) | 2012-05-23 |
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Effective date of registration: 20210409 Address after: No.99, north extension line, 2nd Ring West Road, Jinan City, Shandong Province Patentee after: SHANDONG GAOSU LOAD AND BRIDGE MAINTENANCE Co.,Ltd. Address before: Huaiyin District of Ji'nan City, Shandong province 250021 three road No. 289 Patentee before: SHANDONG LUQIAO GROUP Co.,Ltd. |
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Address after: No.99, north extension line, 2nd Ring West Road, Tianqiao District, Jinan City, Shandong Province Patentee after: Shandong high speed maintenance Group Co.,Ltd. Address before: No.99, north extension line, 2nd Ring West Road, Jinan City, Shandong Province Patentee before: SHANDONG GAOSU LOAD AND BRIDGE MAINTENANCE Co.,Ltd. |