CN107717536A - It is a kind of to be easy to fixed cutting device for round tube - Google Patents

It is a kind of to be easy to fixed cutting device for round tube Download PDF

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Publication number
CN107717536A
CN107717536A CN201710966571.4A CN201710966571A CN107717536A CN 107717536 A CN107717536 A CN 107717536A CN 201710966571 A CN201710966571 A CN 201710966571A CN 107717536 A CN107717536 A CN 107717536A
Authority
CN
China
Prior art keywords
fixedly connected
fixed
pipe body
operating desk
adapter sleeve
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.)
Withdrawn
Application number
CN201710966571.4A
Other languages
Chinese (zh)
Inventor
王熙毅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuxi Baowei Welding Equipment Co Ltd
Original Assignee
Wuxi Baowei Welding Equipment Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wuxi Baowei Welding Equipment Co Ltd filed Critical Wuxi Baowei Welding Equipment Co Ltd
Priority to CN201710966571.4A priority Critical patent/CN107717536A/en
Publication of CN107717536A publication Critical patent/CN107717536A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25Movable or adjustable work or tool supports
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06Work-clamping means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06Work-clamping means
    • B23Q3/062Work-clamping means adapted for holding workpieces having a special form or being made from a special material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06Work-clamping means
    • B23Q3/062Work-clamping means adapted for holding workpieces having a special form or being made from a special material
    • B23Q3/064Work-clamping means adapted for holding workpieces having a special form or being made from a special material for holding elongated workpieces, e.g. pipes, bars or profiles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22Feeding members carrying tools or work
    • B23Q5/26Fluid-pressure drives

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sawing (AREA)

Abstract

The present invention relates to cutting technique field, and disclose and a kind of be easy to fixed cutting device for round tube, including operating desk, sliding block is connected with by fixed mount at the top of operating desk, the bottom of sliding block is fixedly connected with cutting machine by hydraulic stem, the first fixed plate is fixedly connected with the top of operating desk, the side of first fixed plate is fixedly connected with pipe body by the first adapter sleeve, threaded one end of the pipe body away from the first adapter sleeve is connected with the second adapter sleeve, side of second adapter sleeve away from pipe body is fixedly connected with handle, the middle part of handle is fixedly connected with the second fixed plate by bearing, the bottom of second fixed plate is flexibly connected by slide plate with operating desk.Pipe body side is fixed by the first adapter sleeve and the first fixed plate by the present invention, rotating handle makes the second adapter sleeve that pipe body opposite side be fixed, facilitate and pipe body is fixed, prevent pipe body position during cutting from shifting.

Description

It is a kind of to be easy to fixed cutting device for round tube
Technical field
It is specially a kind of to be easy to fixed cutting device for round tube the present invention relates to cutting technique field.
Background technology
Cutting is a kind of physical action, and the cutting of narrow sense refers to be cut object with sharp weapon such as knives, and the cutting of broad sense refers to Using instrument, object is made object be disconnected in the presence of pressure or high temperature by such as lathe and flame.
Pipe engineering using when because degree differs need to cut pipe, pipe is reached corresponding size, side Just the use of pipe, but pipe is because the relatively smooth fixation in its surface is more troublesome, so existing building site is usually to be stepped on pin Step on pipe to cut pipe, but so not only efficiency is beneath and cutting accuracy is relatively low.
The content of the invention
(One)The technical problem of solution
In view of the shortcomings of the prior art, it is easy to fixed cutting device for round tube the invention provides a kind of, it is convenient to pipe to possess The advantages of cutting is fixed, solve the problems, such as that existing pipe cutting is not easy to fix.
(Two)Technical scheme
To achieve the above object, the present invention provides following technical scheme:It is a kind of to be easy to fixed cutting device for round tube, including operation Platform, the side at the top of the operating desk are fixedly connected with fixed mount, and the outer surface at the top of the fixed mount is connected with sliding block, The bottom of the sliding block is fixedly connected with hydraulic stem, and the bottom of the hydraulic stem is fixedly connected with connecting plate, the connecting plate Bottom is fixedly connected with cutting machine.
The first fixed plate is fixedly connected with the top of the operating desk, the side of first fixed plate is fixedly connected with One adapter sleeve, the side of first adapter sleeve away from the first fixed plate are plugged with pipe body, and the pipe body is away from The threaded one end of one adapter sleeve is connected with the second adapter sleeve, and the side of second adapter sleeve away from pipe body is fixedly connected with Handle, is fixedly connected with bearing in the middle part of the handle, and the bearing is connected to the middle part of the second fixed plate side, and described second The bottom of fixed plate is fixedly connected with slide plate, and the bottom of the slide plate through operating desk and extends to inside and the operation of operating desk Platform is flexibly connected, and the junction of the operating desk and slide plate offers chute, and the bottom of the pipe body is placed on support frame Top, the bottom of support frame as described above is fixedly connected with support base, and the bottom of the support base and the top of operating desk, which are fixed, to be connected Connect.
Preferably, the one end of the fixed mount away from operating desk is fixedly connected with limiting plate, and the limiting plate is shaped as It is circular.
Preferably, the quantity of support frame as described above is two, and two support frames are equidistantly distributed in the bottom of pipe body.
Preferably, outer surface of the handle away from second adapter sleeve one end is fixedly connected with rubber sleeve, and the handle is remote One end from the second adapter sleeve is fixedly connected with limited block.
Preferably, the outer surface of the cutting machine is fixedly connected with fixed cover, the top of the fixed cover and connecting plate Bottom is fixedly connected.
Preferably, one end that the slide plate is located inside operating desk is fixedly connected with fixture block, and the fixture block is shaped as growing It is square.
(Three)Beneficial effect
Compared with prior art, it is easy to fixed cutting device for round tube the invention provides a kind of, possesses following beneficial effect:
1st, this is easy to fixed cutting device for round tube, and pipe body side is consolidated by the first adapter sleeve and the first fixed plate Fixed, rotating handle makes the second adapter sleeve that pipe body opposite side be fixed, and facilitates and pipe body is fixed, prevent Pipe body position during cutting shifts, and possesses convenient the advantages of cutting is fixed to pipe body, solves The problem of existing pipe body cutting is not easy to fix, adds the precision cut to pipe body, adds cutting Efficiency.
2nd, this is easy to fixed cutting device for round tube, and movement of second fixed plate on operating desk is facilitated by slide plate, The second adapter sleeve is more preferably fixed pipe body one end, facilitated by adjusting hydraulic stem and cutting machine is lifted, Cutting machine is moved left and right by conveniently moving of the sliding block on fixed mount, the convenient diverse location to pipe body is carried out Cutting, there is the advantage that can be cut without man-hour manually hand-held cutting machine to pipe body, pass through support frame and support base side Support to pipe body, prevent from cutting caused by not being supported because of pipe body bottom portion when cutting pipe body uneven The problem of sliding.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention;
Fig. 2 is the mplifying structure schematic diagram in A portions in Fig. 1 of the present invention.
In figure:1 operating desk, 2 fixed mounts, 3 sliding blocks, 4 limiting plates, 5 hydraulic stems, 6 connecting plates, 7 cutting machines, 8 fixed covers, 9 First fixed plate, 10 first adapter sleeves, 11 pipe bodies, 12 second adapter sleeves, 13 bearings, 14 second fixed plates, 15 handles, 16 Rubber sleeve, 17 slide plates, 18 fixture blocks, 19 limited blocks, 20 support bases, 21 support frames.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made Embodiment, belong to the scope of protection of the invention.
Fig. 1-2 is referred to, it is a kind of to be easy to fixed cutting device for round tube, including operating desk 1, the side at the top of operating desk 1 Fixed mount 2 is fixedly connected with, the outer surface at the top of fixed mount 2 is connected with sliding block 3, the one end of fixed mount 2 away from operating desk 1 Limiting plate 4 is fixedly connected with, limiting plate 4 is shaped as circle, and movement of the sliding block 3 on fixed mount 2 is defined by limiting plate 4 Scope, anti-limited slip block 3 depart from fixed mount 2, add the practicality of the present invention, the bottom of sliding block 3 is fixedly connected with hydraulic stem 5, the bottom of hydraulic stem 5 is fixedly connected with connecting plate 6, and the bottom of connecting plate 6 is fixedly connected with cutting machine 7, by adjusting hydraulic pressure Bar 5 facilitates to be lifted to cutting machine 7, the left and right of cutting machine 7 is moved by conveniently moving of the sliding block 3 on fixed mount 2 Dynamic, the convenient diverse location to pipe body 11 is cut, and having can be to pipe body 11 without man-hour manually hand-held cutting machine 7 The advantage cut, the outer surface of cutting machine 7 are fixedly connected with fixed cover 8, the top of fixed cover 8 and the bottom of connecting plate 6 It is fixedly connected, by the convenient fixation to cutting machine 7 of fixed cover 8, adds the stability of cutting machine 7, enable cutting machine 7 more Stable work.
The top of operating desk 1 is fixedly connected with the first fixed plate 9, and the side of the first fixed plate 9 is fixedly connected with the first company Female connector 10, side of first adapter sleeve 10 away from the first fixed plate 9 are plugged with pipe body 11, pass through the first adapter sleeve 10 and The side of pipe body 11 is fixed one fixed plate 9, and threaded one end of the pipe body 11 away from the first adapter sleeve 10 is connected with Second adapter sleeve 12, the second thread bush 12 are thread bush, and pipe body 1 offers and second close to one end of the second adapter sleeve 12 The screw thread that adapter sleeve 12 is adapted, the second side of the adapter sleeve 12 away from pipe body 11 are fixedly connected with handle 15, handle 15 Middle part be fixedly connected with bearing 13, bearing 13 is connected to the middle part of the side of the second fixed plate 14, passes through the side of the second fixed plate 14 The fixed of handle 15 is supported, it is convenient that the fixed of pipe body 11 is supported, make pipe body 11 horizontal positioned, convenient pair The cutting of pipe body 11, rotating handle 15 rotates the second adapter sleeve 12, facilitates the second adapter sleeve 12 to pipe body 11 Opposite side is fixed, and facilitates and pipe body 11 is fixed, and prevents the position during cutting of pipe body 11 from sending out Raw skew, possess convenient the advantages of cutting is fixed to pipe body 11, solve the existing cutting of pipe body 11 and be not easy to The problem of fixed, the precision cut to pipe body 11 is added, add the efficiency of cutting, handle 15 connects away from second The outer surface of the one end of female connector 12 is fixedly connected with rubber sleeve 16, and the one end of handle 15 away from the second adapter sleeve 12 is fixedly connected limited Position block 19, comfortableness when gripping handle 15 is added by rubber sleeve 16, rubber sleeve 16 and handle are prevented by limited block 19 15 separation, the practicality of the present invention is added, the bottom of the second fixed plate 14 is fixedly connected with slide plate 17, and the bottom of slide plate 17 is worn The inside crossed operating desk 1 and extend to operating desk 1 is flexibly connected with operating desk 1, and the junction of operating desk 1 and slide plate 17 offers Chute, movement of the slide plate 17 inside operating desk 1 is facilitated by chute, facilitates moving left and right for the second fixed plate 14, led to Cross slide plate 17 and facilitate movement of second fixed plate 14 on operating desk 1, make the second adapter sleeve 12 to the one end of pipe body 11 more Preferably fixed, one end that slide plate 17 is located inside operating desk 1 is fixedly connected with fixture block 18, and fixture block 18 is shaped as rectangle, The position of slide plate 17 is defined by fixture block 18, anti-limited slip plate 17 departs from operating desk 1, defines that the second fixed plate 14 can only be left Move right, facilitate fixation of second adapter sleeve 12 to pipe body 11, the bottom of pipe body 11 is placed on support frame 21 Top, the bottom of support frame 21 are fixedly connected with support base 20, and the bottom of support base 20 is fixedly connected with the top of operating desk 1, Support to pipe body 11 is facilitated by support frame 21 and support base 20, prevented when cutting pipe body 11 because of pipe sheet The bottom of body 11, which is not supported, causes to cut rough problem, and the quantity of support frame 21 is two, and two support frames 21 are equidistant From the bottom for being distributed in pipe body 11, the fixation for enabling support frame 21 more to consolidate pipe body 11 facilitates pair Pipe body 11 it is spacing, facilitate the cutting to pipe body 11.
In summary, this is easy to fixed cutting device for round tube, by the first adapter sleeve 10 and the first fixed plate 9 to pipe The side of body 11 is fixed, and rotating handle 15 makes the second adapter sleeve 12 that the opposite side of pipe body 11 be fixed, and facilitates Pipe body 11 is fixed, prevents the position during cutting of pipe body 11 from shifting, it is convenient to pipe to possess The advantages of cutting is fixed in body 11, solves the problems, such as that the existing cutting of pipe body 11 is not easy to fix, add to circle The precision that tube body 11 is cut, add the efficiency of cutting.
Movement of second fixed plate 14 on operating desk 1 is facilitated by slide plate 17, makes the second adapter sleeve 12 to pipe sheet The one end of body 11 is more preferably fixed, and is facilitated by adjusting hydraulic stem 5 and cutting machine 7 is lifted, by sliding block 3 in fixed mount Conveniently moving on 2 moving left and right to cutting machine 7, the convenient diverse location to pipe body 11 are cut, and have nothing The advantage for needing man-hour manually hand-held cutting machine 7 to be cut to pipe body 11, is facilitated by support frame 21 and support base 20 Support to pipe body 11, prevent that cutting is not caused by not being supported because of the bottom of pipe body 11 when cutting pipe body 11 The problem of smooth.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality Body or operation make a distinction with another entity or operation, and not necessarily require or imply and deposited between these entities or operation In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to Nonexcludability includes, so that process, method, article or equipment including a series of elements not only will including those Element, but also the other element including being not expressly set out, or it is this process, method, article or equipment also to include Intrinsic key element.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding And modification, the scope of the present invention is defined by the appended.

Claims (6)

1. a kind of be easy to fixed cutting device for round tube, including operating desk(1), it is characterised in that:The operating desk(1)Top Side is fixedly connected with fixed mount(2), the fixed mount(2)The outer surface at top is connected with sliding block(3), the sliding block (3)Bottom be fixedly connected with hydraulic stem(5), the hydraulic stem(5)Bottom be fixedly connected with connecting plate(6), the connection Plate(6)Bottom be fixedly connected with cutting machine(7);
The operating desk(1)Top be fixedly connected with the first fixed plate(9), first fixed plate(9)Side fix connect It is connected to the first adapter sleeve(10), first adapter sleeve(10)Away from the first fixed plate(9)Side be plugged with pipe body (11), the pipe body(11)Away from the first adapter sleeve(10)Threaded one end be connected with the second adapter sleeve(12), described Two adapter sleeves(12)Away from pipe body(11)Side be fixedly connected with handle(15), the handle(15)Middle part fix connect It is connected to bearing(13), the bearing(13)It is connected to the second fixed plate(14)The middle part of side, second fixed plate(14)'s Bottom is fixedly connected with slide plate(17), the slide plate(17)Bottom pass through operating desk(1)And extend to operating desk(1)Inside With operating desk(1)It is flexibly connected, the operating desk(1)With slide plate(17)Junction offer chute, the pipe body (11)Bottom be placed on support frame(21)Top, support frame as described above(21)Bottom be fixedly connected with support base(20), institute State support base(20)Bottom and operating desk(1)Top be fixedly connected.
2. a kind of it is easy to fixed cutting device for round tube according to claim 1, it is characterised in that:The fixed mount(2) Away from operating desk(1)One end be fixedly connected with limiting plate(4), the limiting plate(4)Be shaped as circle.
3. a kind of it is easy to fixed cutting device for round tube according to claim 1, it is characterised in that:Support frame as described above(21) Quantity be two, two support frames(21)Equidistantly distribute in pipe body(11)Bottom.
4. a kind of it is easy to fixed cutting device for round tube according to claim 1, it is characterised in that:The handle(15)Far From the second adapter sleeve(12)The outer surface of one end is fixedly connected with rubber sleeve(16), the handle(15)Away from the second adapter sleeve (12)One end be fixedly connected with limited block(19).
5. a kind of it is easy to fixed cutting device for round tube according to claim 1, it is characterised in that:The cutting machine(7) Outer surface be fixedly connected with fixed cover(8), the fixed cover(8)Top and connecting plate(6)Bottom be fixedly connected.
6. a kind of it is easy to fixed cutting device for round tube according to claim 1, it is characterised in that:The slide plate(17)Position In operating desk(1)Internal one end is fixedly connected with fixture block(18), the fixture block(18)Be shaped as rectangle.
CN201710966571.4A 2017-10-17 2017-10-17 It is a kind of to be easy to fixed cutting device for round tube Withdrawn CN107717536A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710966571.4A CN107717536A (en) 2017-10-17 2017-10-17 It is a kind of to be easy to fixed cutting device for round tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710966571.4A CN107717536A (en) 2017-10-17 2017-10-17 It is a kind of to be easy to fixed cutting device for round tube

Publications (1)

Publication Number Publication Date
CN107717536A true CN107717536A (en) 2018-02-23

Family

ID=61210547

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710966571.4A Withdrawn CN107717536A (en) 2017-10-17 2017-10-17 It is a kind of to be easy to fixed cutting device for round tube

Country Status (1)

Country Link
CN (1) CN107717536A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108637391A (en) * 2018-05-07 2018-10-12 芜湖撼江智能科技有限公司 One kind can self-holding automatic gas cutting machine
CN108746833A (en) * 2018-06-07 2018-11-06 安徽广美钢业有限公司 A kind of hi-precision cutting device for stainless pipe
CN108817547A (en) * 2018-07-06 2018-11-16 黄开荣 A kind of steel cutting equipment of high stability
CN109175811A (en) * 2018-10-29 2019-01-11 广州科奥信息技术有限公司 One kind convenient can carry mechanical welder resistant to high temperature
CN110695458A (en) * 2019-09-25 2020-01-17 江西凯利德科技有限公司 Semi-automatic product waste cutting device and cutting method
CN111515430A (en) * 2020-04-13 2020-08-11 孙长野 Perforating device for building

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108637391A (en) * 2018-05-07 2018-10-12 芜湖撼江智能科技有限公司 One kind can self-holding automatic gas cutting machine
CN108746833A (en) * 2018-06-07 2018-11-06 安徽广美钢业有限公司 A kind of hi-precision cutting device for stainless pipe
CN108746833B (en) * 2018-06-07 2019-10-11 上海华普钢结构股份有限公司 A kind of hi-precision cutting device for stainless pipe
CN108817547A (en) * 2018-07-06 2018-11-16 黄开荣 A kind of steel cutting equipment of high stability
CN109175811A (en) * 2018-10-29 2019-01-11 广州科奥信息技术有限公司 One kind convenient can carry mechanical welder resistant to high temperature
CN110695458A (en) * 2019-09-25 2020-01-17 江西凯利德科技有限公司 Semi-automatic product waste cutting device and cutting method
CN111515430A (en) * 2020-04-13 2020-08-11 孙长野 Perforating device for building

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Application publication date: 20180223