CN109692993A - A kind of Construction of Steel Structure portal frame shear knife - Google Patents
A kind of Construction of Steel Structure portal frame shear knife Download PDFInfo
- Publication number
- CN109692993A CN109692993A CN201811560319.4A CN201811560319A CN109692993A CN 109692993 A CN109692993 A CN 109692993A CN 201811560319 A CN201811560319 A CN 201811560319A CN 109692993 A CN109692993 A CN 109692993A
- Authority
- CN
- China
- Prior art keywords
- band
- plate
- transfer module
- shearing
- shear knife
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D15/00—Shearing machines or shearing devices cutting by blades which move parallel to themselves
- B23D15/06—Sheet shears
- B23D15/08—Sheet shears with a blade moved in one plane, e.g. perpendicular to the surface of the sheet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D15/00—Shearing machines or shearing devices cutting by blades which move parallel to themselves
- B23D15/12—Shearing machines or shearing devices cutting by blades which move parallel to themselves characterised by drives or gearings therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D33/00—Accessories for shearing machines or shearing devices
- B23D33/02—Arrangements for holding, guiding, and/or feeding work during the operation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Shearing Machines (AREA)
Abstract
The present invention relates to a kind of Construction of Steel Structure portal frame shear knives, including bottom plate, transmission mechanism and cutting mechanism, transmission mechanism is symmetrically arranged with before and after the upper surface front and rear sides of the bottom plate, cutting mechanism is installed by way of being slidably matched between the transmission mechanism of front and back, transmission mechanism includes band to band transfer module, the rear end of bottom plate upper surface is equipped with band to band transfer module, band to band transfer module upper surface is equipped with groove, support rod has been left and right symmetrically arranged between groove front and rear inner side walls, the middle part of support rod side wall is equipped with rotary fluted disc by bearing, it is connected between left-right rotation fluted disc by transmission belt.Joining place shear effect is poor after plate is mobile inconvenient when the present invention can solve portal frame shearing, plate is mobile, shearing when be easy the problems such as plate after swaging clamp and shearing arbitrarily swings easy scuffing hand, the function to the safe and efficient shearing of plate may be implemented, have the advantages that conveniently moving, be not easy swaging clamp and safe operation.
Description
Technical field
The present invention relates to field of steel structure, in particular to a kind of Construction of Steel Structure portal frame shear knife.
Background technique
The structure that steel construction is made of steel material is one of main building construction types, each component of steel construction
Or weld seam, bolt or rivet interlacement are generallyd use between component, because its self weight is lighter, and easy construction, it is widely used in large size
The fields such as workshop, venue, Super High.
Steel construction construction when due to its inconsistent operating method of the plate of each component it is also different, in the construction of steel construction
Plate used in portal frame is very thin, to avoid using gas flame cuttiug by the way of shearing when plate is cut, this is because
Edges of boards can be made to generate very big wave transformation with gas flame cuttiug, and under the conditions of the prior art, there is also many problems for shearing:
Problem one: movement is very inconvenient when shearing under existence conditions to plate, needs movable plate after having sheared a part
Part could continue to cut, and mostly by manually lifting under the prior art, it is very troublesome；
Problem two: after mobile to plate when shearing, joining place it is easy to appear deviation, the effect of shearing compared with
Difference；
Problem three: plate is easy to swaging clamp when shearing, while the plate after shearing arbitrarily swings and is easy to scratch hand.
Also there are the exploration and practice of related fields, number of patent application for the shearing of plate at present are as follows:
201820436511.1 Chinese utility model patent discloses a kind of sheet shearing positioning device, can reduce human error,
Improve sheet shearing production efficiency；The Chinese utility model patent that number of patent application is 201721439437.0 discloses a kind of plate
Material cutter, the plate being cut out is high-quality, and there is no the phenomenons of crimping, volume angle or middle part injustice, but for correlation
The transmission of plate swaging clamp, is easy to scratch hand etc. practice well not yet, therefore is able to solve it is necessary to make one kind
The shear of related fields.
Summary of the invention
To solve the above-mentioned problems, it the present invention provides a kind of Construction of Steel Structure portal frame shear knife, can solve
Joining place shear effect is poor after plate is mobile inconvenient when portal frame is sheared, plate is mobile, shearing when be easy swaging clamp and shear after
Plate arbitrarily swing be easy scratch hand the problems such as, the function to the safe and efficient shearing of plate may be implemented, have conveniently moving,
The advantages of being not easy swaging clamp and safe operation.
To achieve the goals above, the present invention uses following technical scheme, and a kind of Construction of Steel Structure is sheared with portal frame
The upper surface front and rear sides front and back of knife, including bottom plate, transmission mechanism and cutting mechanism, the bottom plate is symmetrically arranged with transmission mechanism,
Cutting mechanism is installed by way of being slidably matched between the transmission mechanism of front and back.
The transmission mechanism includes band to band transfer module, and the rear end of bottom plate upper surface is equipped with band to band transfer module, and band to band transfer module upper surface is set
It is fluted, support rod is left and right symmetrically arranged between groove front and rear inner side walls, the middle part of support rod side wall is equipped with by bearing
Rotary fluted disc is connected between left-right rotation fluted disc by transmission belt, absorption branch is uniformly equipped on the lateral wall of transmission belt,
The rear end of left end support bar side wall passes through band to band transfer module by bearing, and the left side of support rod passes through shaft coupling and transmission electrical machine
Output shaft is connected, and transmission electrical machine is mounted on motor plate by motor cabinet, after the front end face of motor plate is mounted on band to band transfer module
On side.
Preferably, the absorption branch includes absorption telescopic rod, is uniformly equipped with absorption on the lateral wall of transmission belt and stretches
Contracting bar, the inside for adsorbing telescopic rod is hollow structure, and the inside for adsorbing telescopic rod is equipped with absorption spring, adsorbs telescopic rod
Upper surface is equipped with sucker, when work, is rolled using existing rolling mechanism to plate, when rolling plate by sucker suction,
Meanwhile telescopic rod stretching motion is adsorbed, so that plate is bonded with band to band transfer module, when needing to move plate, transmission electrical machine
By driving the sucker rotation in transmission belt, plate shear line still is able to and shears when can move, and move to plate
Mechanism is kept on one wire, and continuing shearing joining place when shearing is not in error, to realize the transport to plate, is transported
Defeated convenience, shearing joining place effect are preferable.
The cutting mechanism includes ball, is symmetrically arranged with before and after the rear end face of preceding band to band transfer module and the front end face of rear band to band transfer module
Sliding slot, the lower end surface inside sliding slot are hinged with ball, by being slidably matched between the upper surface inside ball upper end and sliding slot
Mode is connected with slide plate, and cutting bed is equipped in the middle part of slide plate left side, and the height of cutting bed and the height of band to band transfer module are consistent,
The upper surface of cutting bed is equipped with cutter groove, and the depth of cutter groove is installed in trend, the middle part of slide plate upper surface is gradually deepened from left to right
There is supporting table, supporting table is the L-type structure stood upside down, and is connected with shearing branch in the middle part of supporting table.
Preferably, the shearing branch includes swivel becket, and the middle part of supporting table is equipped with swivel becket by bearing, and props up
The middle part for supportting platform left and right side is equipped with limiting slot, and the left end for rotating ring-side wall is equipped with shear knife, cutter groove shape and shear knife
Shape matches, and the right end for rotating ring-side wall is equipped with hilt, and cutter groove, shear knife, swivel becket and hilt cooperate into scissors
Shape, is equipped with reset spring between the upper surface of hilt and the lower end surface of supporting table epipleural, when work, hold hilt or more
Movement, shear knife are bonded with cutter groove, the shearing to plate may be implemented, while the plate after shearing is slipped over out of limiting slot, this
Sample can not only ensure that shear knife will not be by swaging clamp, but also a simple limit can be carried out to the plate sheared, and avoid and cut
The plate cut arbitrarily swings the hand for scratching staff, to be not easy swaging clamp when shearing to plate and will not scratch hand.
Preparation before work: rolling plate using existing rolling mechanism, and plate is by sucker suction when rolling, together
When, telescopic rod stretching motion is adsorbed, so that plate is bonded with band to band transfer module；
Cutting mechanism work: holding hilt up and down motion, and shear knife is bonded with cutter groove, and the shearing to plate may be implemented,
Plate after shearing simultaneously is slipped over out of limiting slot, can not only ensure that shear knife will not be by swaging clamp in this way, but also can be to shearing
Plate carry out a simple limit, avoid the hand that plate shear arbitrarily swings scuffing staff；
When mobile plate: when needing to move plate, transmission electrical machine is rotated by the sucker in drive transmission belt,
Plate shear line still is able to keep on one wire, continuing to shear with cutting mechanism when can move, and move to plate
When shearing joining place be not in error.
Joining place after mobile inconvenient, the plate movement of plate when workflow in summary can solve portal frame shearing
Shear effect is poor, shearing when be easy the plate after swaging clamp and shearing and arbitrarily swing the problems such as being easy scuffing hand, may be implemented to plate
The function of the safe and efficient shearing of part.
The beneficial effects of the present invention are:
One, joining place shear effect after mobile inconvenient, the plate movement of plate when the present invention can solve portal frame shearing
Plate after being easy swaging clamp and shearing when difference, shearing, which is arbitrarily swung, is easy the problems such as scratching hand, may be implemented high to plate safety
The function of imitating shearing, has the advantages that conveniently moving, is not easy swaging clamp and safe operation.
Two, the present invention is provided with transmission mechanism, and transmission mechanism makes plate conveniently moving, and the shear line after moving remains to
Keep conllinear with cutting mechanism, after continuing shearing, shearing linking effect is preferable；
Three, the present invention is provided with cutting mechanism, and cutting mechanism can shear plate, at the same can be to shearing after
Plate is separated and is limited, and is avoided shear knife and is stuck, while being also avoided the plate after shearing and being scratched hand.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the A of Fig. 1 of the present invention to enlarged diagram；
Fig. 3 is the sectional view of Fig. 1 of the present invention；
Fig. 4 is the structural schematic diagram between transmission belt and absorption branch of the invention.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Conjunction is specifically illustrating, and the present invention is further explained.It should be noted that in the absence of conflict, embodiment in the application and
Feature in embodiment can be combined with each other.
As shown in Figures 1 to 4, a kind of Construction of Steel Structure portal frame shear knife, including bottom plate 1, transmission mechanism 2 and cut
Mechanism 3 is cut, transmission mechanism 2 is symmetrically arranged with before and after the upper surface front and rear sides of the bottom plate 1, passes through between front and back transmission mechanism 2
The mode being slidably matched is equipped with cutting mechanism 3.
The transmission mechanism 2 includes band to band transfer module 21, and the rear end of 1 upper surface of bottom plate is equipped with band to band transfer module 21, band to band transfer module 21
Upper surface is equipped with groove, and support rod 22 has been left and right symmetrically arranged between groove front and rear inner side walls, and the middle part of 22 side wall of support rod is logical
It crosses bearing and rotary fluted disc 23 is installed, be connected between left-right rotation fluted disc 23 by transmission belt 24, the lateral wall of transmission belt 24
On absorption branch 25 is uniformly installed, the rear end of 22 side wall of left end support bar passes through band to band transfer module 21, and support rod 22 by bearing
Left side be connected by shaft coupling with the output shaft of transmission electrical machine 26, transmission electrical machine 26 is mounted on motor plate by motor cabinet
On 27, the front end face of motor plate 27 is mounted on the trailing flank of band to band transfer module 21.
The absorption branch 25 includes absorption telescopic rod 251, is uniformly equipped with absorption on the lateral wall of transmission belt 24 and stretches
Contracting bar 251, the inside of absorption telescopic rod 251 is hollow structure, and the inside for adsorbing telescopic rod 251 is equipped with absorption spring 252,
The upper surface of absorption telescopic rod 251 is equipped with sucker 253, when work, is rolled, is rolled to plate using existing rolling mechanism
When plate adsorbed by sucker 253, meanwhile, adsorb 251 stretching motion of telescopic rod and so that plate is bonded with band to band transfer module 21 work as needs
When moving to plate, transmission electrical machine 26 can move plate by driving the sucker 253 in transmission belt 24 to rotate
Plate shear line still is able to keep on one wire with cutting mechanism 3 when moving, and moving, and shearing joining place will not when continuing to shear
There is error, to realize the transport to plate, it is preferable to shear joining place effect for convenient transportation.
The cutting mechanism 3 include ball 30, before the front end face of the rear end face of preceding band to band transfer module 21 and rear band to band transfer module 21
After be symmetrically arranged with sliding slot, the lower end surface inside sliding slot is hinged with ball 30, between the upper surface inside 30 upper end of ball and sliding slot
It is connected with slide plate 31 by way of being slidably matched, cutting bed 32, the height of cutting bed 32 are installed in the middle part of 31 left side of slide plate
Spend consistent with the height of band to band transfer module 21, the upper surface of cutting bed 32 is equipped with cutter groove 33, the depth of cutter groove 33 be in from left to right by
Gradually deepen trend, supporting table 34 is installed in the middle part of 31 upper surface of slide plate, supporting table 34 is the L-type structure stood upside down, supporting table 34
Middle part be connected with shearing branch 35.
The shearing branch 35 includes swivel becket 351, and the middle part of supporting table 34 is equipped with swivel becket 351 by bearing,
And the middle part of 34 left and right side of supporting table is equipped with limiting slot 352, the left end of 351 side wall of swivel becket is equipped with shear knife 353, cutter groove
33 shapes match with the shape of shear knife 353, and the right end of 351 side wall of swivel becket is equipped with hilt 354, cutter groove 33, shear knife
353, swivel becket 351 and hilt 354 cooperate into scissors shape, under the upper surface of hilt 354 and 34 epipleural of supporting table
Reset spring 355 is installed between end face, when work, holds the up and down motion of hilt 354, shear knife 353 is bonded with cutter groove 33, can
To realize the shearing to plate, while the plate after shearing is slipped over out of limiting slot 352, can both ensure shear knife 353 in this way
A simple limit can will not be carried out to the plate sheared by swaging clamp, avoid the plate sheared and arbitrarily swing
The hand for scratching staff, to be not easy swaging clamp when shearing to plate and hand will not be scratched.
Preparation before work: rolling plate using existing rolling mechanism, and plate is adsorbed by sucker 253 when rolling,
Meanwhile 251 stretching motion of telescopic rod is adsorbed, so that plate is bonded with band to band transfer module 21；
Cutting mechanism 3 works: holding the up and down motion of hilt 354, shear knife 353 is bonded with cutter groove 33, may be implemented to plate
The shearing of part, at the same shear after plate slipped over out of limiting slot 352, can both ensure in this way shear knife 353 will not by swaging clamp,
A simple limit can be carried out to the plate sheared again, the plate sheared is avoided and arbitrarily swings scuffing staff
Hand；
When mobile plate: when needing to move plate, transmission electrical machine 26 is by driving the sucker in transmission belt 24
253 rotations, plate shear line still is able to keep on one wire with cutting mechanism 3 when can move, and move to plate,
Continuing shearing joining place when shearing is not in error.
Workflow in summary realizes the function to the safe and efficient shearing of plate, when solving portal frame shearing
Joining place shear effect is poor after plate is mobile inconvenient, plate is mobile, shearing when be easy swaging clamp and shear after plate arbitrarily swing
It is easy the problems such as scratching hand, has reached purpose.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of Construction of Steel Structure portal frame shear knife, including bottom plate (1), transmission mechanism (2) and cutting mechanism (3),
Be characterized in that: being symmetrically arranged with transmission mechanism (2) before and after the upper surface front and rear sides of the bottom plate (1), front and back transmission mechanism (2) it
Between cutting mechanism (3) are installed by way of being slidably matched；Wherein:
The transmission mechanism (2) includes band to band transfer module (21), and the rear end of bottom plate (1) upper surface is equipped with band to band transfer module (21), transmission
Platform (21) upper surface is equipped with groove, has been left and right symmetrically arranged support rod (22) between groove front and rear inner side walls, support rod (22) side
The middle part of wall is equipped with rotary fluted disc (23) by bearing, is connected between left-right rotation fluted disc (23) by transmission belt (24),
Absorption branch (25) is uniformly installed, the rear end of left end support bar (22) side wall is worn by bearing on the lateral wall of transmission belt (24)
It crosses band to band transfer module (21), and the left side of support rod (22) is connected by shaft coupling with the output shaft of transmission electrical machine (26), transmits
Motor (26) is mounted on motor plate (27) by motor cabinet, and the front end face of motor plate (27) is mounted on the rear side of band to band transfer module (21)
On face；
The cutting mechanism (3) includes ball (30), the rear end face of preceding band to band transfer module (21) and the front end face of rear band to band transfer module (21)
Front and back is symmetrically arranged with sliding slot, and the lower end surface inside sliding slot is hinged with ball (30), the upper end inside ball (30) upper end and sliding slot
It is connected with by way of being slidably matched between face slide plate (31), cutting bed (32) is installed in the middle part of slide plate (31) left side,
The upper surface of cutting bed (32) is equipped with cutter groove (33), and the depth of cutter groove (33) is in gradually to deepen trend, slide plate (31) from left to right
It is equipped in the middle part of upper surface supporting table (34), supporting table (34) is the L-type structure stood upside down, and supporting table is connected in the middle part of (34)
It shears branch (35).
2. a kind of Construction of Steel Structure portal frame shear knife according to claim 1, it is characterised in that: the absorption
Branch (25) includes absorption telescopic rod (251), and absorption telescopic rod (251) is uniformly equipped on the lateral wall of transmission belt (24), is inhaled
The inside of attached telescopic rod (251) is hollow structure, and the inside for adsorbing telescopic rod (251) is equipped with absorption spring (252), absorption
The upper surface of telescopic rod (251) is equipped with sucker (253).
3. a kind of Construction of Steel Structure portal frame shear knife according to claim 1, it is characterised in that: the shearing
Branch (35) includes swivel becket (351), and the middle part of supporting table (34) is equipped with swivel becket (351) by bearing, and supporting table
(34) middle part of left and right side is equipped with limiting slot (352), and the left end of swivel becket (351) side wall is equipped with shear knife (353), rotates
The right end of ring (351) side wall is equipped with hilt (354), the upper surface of hilt (354) and the lower end surface of supporting table (34) epipleural
Between reset spring (355) are installed.
4. a kind of Construction of Steel Structure portal frame shear knife according to claim 1, it is characterised in that: the cutter groove
(33) shape matches with the shape of shear knife (353), and cutter groove (33), shear knife (353), swivel becket (351) and hilt
(354) it cooperates into scissors shape.
5. a kind of Construction of Steel Structure portal frame shear knife according to claim 1, it is characterised in that: the cutting bed
(32) height is consistent with the height of band to band transfer module (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811560319.4A CN109692993B (en) | 2018-12-20 | 2018-12-20 | Door-type steel frame shearing knife for steel structure construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811560319.4A CN109692993B (en) | 2018-12-20 | 2018-12-20 | Door-type steel frame shearing knife for steel structure construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109692993A true CN109692993A (en) | 2019-04-30 |
| CN109692993B CN109692993B (en) | 2020-02-07 |
Family
ID=66232721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811560319.4A Active CN109692993B (en) | 2018-12-20 | 2018-12-20 | Door-type steel frame shearing knife for steel structure construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109692993B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4121738A1 (en) * | 1991-07-01 | 1993-01-07 | Weda Roland Werner Gmbh | Shear for cutting off belting - has sliding block running along guideway to guide piston rod of power cylinder over full length of stroke |
| DE19841312A1 (en) * | 1998-09-10 | 2000-03-23 | Alf Holger Tschersich | Tool feed device for cutting tools, with one or more belts tensed on rollers |
| CN102909754A (en) * | 2012-10-29 | 2013-02-06 | 王石 | Automatic plate reversing-sawing device and sawing method thereof |
| CN204912908U (en) * | 2015-08-10 | 2015-12-30 | 吉林工程技术师范学院 | Automatic change cutting machine |
| US9288947B1 (en) * | 2014-07-29 | 2016-03-22 | Ronald Burnette | Folding handsaw pack-pole systems |
| CN106735594A (en) * | 2017-02-09 | 2017-05-31 | 汪巧巧 | A kind of environment protection type sheet material cutting equipment |
| CN206794887U (en) * | 2017-06-01 | 2017-12-26 | 浙江协和陶瓷有限公司 | A kind of swarf machine |
| CN108655485A (en) * | 2018-05-15 | 2018-10-16 | 芜湖君如保温材料有限公司 | A kind of shear of water tank iron sheet |
| CN108856886A (en) * | 2017-12-18 | 2018-11-23 | 潘云江 | A kind of plate cutting device of improved safety |
-
2018
- 2018-12-20 CN CN201811560319.4A patent/CN109692993B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4121738A1 (en) * | 1991-07-01 | 1993-01-07 | Weda Roland Werner Gmbh | Shear for cutting off belting - has sliding block running along guideway to guide piston rod of power cylinder over full length of stroke |
| DE19841312A1 (en) * | 1998-09-10 | 2000-03-23 | Alf Holger Tschersich | Tool feed device for cutting tools, with one or more belts tensed on rollers |
| CN102909754A (en) * | 2012-10-29 | 2013-02-06 | 王石 | Automatic plate reversing-sawing device and sawing method thereof |
| US9288947B1 (en) * | 2014-07-29 | 2016-03-22 | Ronald Burnette | Folding handsaw pack-pole systems |
| CN204912908U (en) * | 2015-08-10 | 2015-12-30 | 吉林工程技术师范学院 | Automatic change cutting machine |
| CN106735594A (en) * | 2017-02-09 | 2017-05-31 | 汪巧巧 | A kind of environment protection type sheet material cutting equipment |
| CN206794887U (en) * | 2017-06-01 | 2017-12-26 | 浙江协和陶瓷有限公司 | A kind of swarf machine |
| CN108856886A (en) * | 2017-12-18 | 2018-11-23 | 潘云江 | A kind of plate cutting device of improved safety |
| CN108655485A (en) * | 2018-05-15 | 2018-10-16 | 芜湖君如保温材料有限公司 | A kind of shear of water tank iron sheet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109692993B (en) | 2020-02-07 |
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