CN108818238A - Surface wire drawing process device - Google Patents
Surface wire drawing process device Download PDFInfo
- Publication number
- CN108818238A CN108818238A CN201810406442.4A CN201810406442A CN108818238A CN 108818238 A CN108818238 A CN 108818238A CN 201810406442 A CN201810406442 A CN 201810406442A CN 108818238 A CN108818238 A CN 108818238A
- Authority
- CN
- China
- Prior art keywords
- side plate
- cylinder
- fixed
- driving wheel
- grinding wheel
- 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- Withdrawn
Links
Classifications
-
- 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
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/006—Machines or devices using grinding or polishing belts; Accessories therefor for special purposes, e.g. for television tubes, car bumpers
-
- 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
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/18—Accessories
-
- 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
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/18—Accessories
- B24B21/20—Accessories for controlling or adjusting the tracking or the tension of the grinding belt
-
- 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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
-
- 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
- B24B47/02—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables
- B24B47/06—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables by liquid or gas pressure only
Abstract
The invention discloses a kind of surface wire drawing process devices, including support frame, motor, press mechanism, fixture and clamping fixture seat, four blocks of parallel side plates of side plate, one pair of them that clamping fixture seat includes bottom plate, is parallel to each other two-by-two are fixed on floor, bottom plate is equipped with the sliding slot parallel with fixed side panel, the outside of sliding slot is equipped with pin hole, the parallel side plate insertion sliding slot of another pair is simultaneously fixed on substrate by pin shaft, first roller both ends are respectively embedded into fixed side plate, and the both ends of second tin roller are respectively embedded into slidable side plate；Self-supporting sleeve both ends are set on stop sleeve and are fixed by left fixed ring, right fixed ring respectively for left fixed ring and right fixed ring.The present invention can be such that the metal circular tube of different-diameter is clamped on clamping fixture seat by adjusting the gap between two pairs of side plates, can process to the metal circular tube of different-diameter.
Description
Technical field
The present invention relates to the surface wire drawing process devices of round tube.
Background technique
It is made into use in the processing of round tube, surface wire drawing road is generally directed to and handles, at two existing metal surface wire drawings
Reason device is typically necessary fixed fixture and clamping fixture seat, and a kind of sleeve clamp and clamping fixture seat can only clamp the round metal of diameter in one
Pipe, the round tube of such different-diameter needs replacing different clampings and holds device, inconvenient.
Summary of the invention
The present invention for overcome the deficiencies in the prior art, provides a kind of table that wire drawing can be carried out to the metal tube of different-diameter
Face wire drawing process device, including support frame, motor, press mechanism, fixture and clamping fixture seat, the motor are fixed on support frame as described above
The rear end of side, the output shaft of the motor are set outside support frame as described above two sides in parallel respectively towards the front side of support frame as described above
The second grinding wheel for having the first grinding wheel and being fixed on by bearing bracket stand on support frame as described above, the output shaft of the motor with it is described
First grinding wheel is connected and is connect by abrasive band with second grinding wheel；The press mechanism is fixed on station and is located at
Above abrasive band；One round tube is installed in the fixture, and the fixture for being equipped with round tube is rotatably arranged on the clamping fixture seat
Underface that is interior and being located at abrasive band, the clamping fixture seat are flexibly connected the lower end surveyed before the station；
The press mechanism includes mounting plate, cylinder and lower platen, and the vertical numerical value of cylinder is installed on the front surface of mounting plate,
The cylinder is fixedly connected with the lower platen, the leading flank of the fixed station of the mounting plate, the lower platen
Underface is provided with a sliding block cylinder, and the sliding block cylinder is installed under the lower surface of lower platen, the sliding block of the sliding block cylinder
Surface is connect with a sliding pressure plate；
The fixture includes axis, stop sleeve, left fixed ring and right fixed ring, and the stop sleeve is fixedly installed in axis
Self-supporting sleeve both ends are set on stop sleeve and by described left solid respectively for portion, the left fixed ring and the right fixed ring
Determine ring, the right fixed ring is fixed；It is characterized in that：The clamping fixture seat includes bottom plate, substrate, the first side plate, the second side plate,
Three side plates, the 4th side plate, the first roller and the second billowing cylinder, first side plate is parallel with second side plate be fixed on it is described
The two sides of upper surface of base plate, the substrate two sides are equipped with the sliding slot matched with the third side plate and the 4th side plate, institute
It is parallel with first side plate and second side plate respectively to state sliding slot, the outside of the sliding slot, the third side plate and the 4th
Side plate is respectively by the fixed sliding slot of pin shaft；First roller one end is embedded in first side plate, and the other end is embedded in institute
State the second side plate；Described second tin roller one end is embedded in the third side plate, and the other end is embedded in the 4th side plate；First rolling
One end that cylinder passes through the first side plate is equipped with the first driving wheel, and one end that the second tin roller passes through third side plate is equipped with second
Driving wheel, it is described that there is the first driving wheel and the bottom plate of second driving wheel one end lower section to be provided with a rotating electric machine, the rotation
It is arranged with the first driving wheel and the second driving wheel in the rotary shaft of motor, passes through between first driving wheel and the first driving wheel
First transmission band connection passes through the second transmission band connection, the bottom plate and base between second driving wheel and the second driving wheel
It is fixedly connected between plate by multiple support plates.The present invention makes the gold of different-diameter by adjusting the distance between two rollers
Category can be preferably placed between two rollers after covering on fixture, so that process range of the invention becomes larger.
It further include third grinding wheel and support arm, the third grinding wheel is connected on the support arm by shaft, institute
It states support arm and leads to reduction torsion spring handover on the station, first grinding wheel, second grinding wheel and described first
Grinding wheel setting triangular in shape；Three grinding wheels of triangle setting drive abrasive band movement, guarantee the stabilization being driven to abrasive band
Property；Support arm leads to the setting of reduction torsion spring, so that third grinding wheel has certain cushion effect and remains tight state, thus
Guarantee processing quality.
Outward flange there are two setting is respectively corresponded on first roller and the second tin roller；Flange plays limit to fixture
Effect, prevent fixture from moving left and right.
The cylinder is substituted with oil cylinder；Cylinder cannot do powerful driving, and oil cylinder can provide more sufficient power.
The sliding block cylinder is substituted with oil cylinder；Cylinder cannot do powerful driving, and oil cylinder can provide more sufficient move
Power.
The present invention can make the metal circular tube of different-diameter be clamped in clamping fixture seat by adjusting the gap between two pairs of side plates
On, different metal round tube can be processed, it is easy to operate.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is partial structural diagram of the invention.
Fig. 3 is the structural schematic diagram of the clamping fixture seat of part of the invention.
Fig. 4 is the structural schematic diagram of press mechanism of the invention.
Fig. 5 is press mechanism partial structural diagram of the invention.
The structural schematic diagram of fixture Fig. 6 of the invention.
Specific embodiment
As shown in figures 1 to 6, surface wire drawing process device, including support frame 1, motor 2, press mechanism 3, fixture 4 and fixture
Seat 5, the motor 2 are fixed on the rear end of 1 side of support frame as described above, and the output shaft of the motor 2 is towards before support frame as described above 1
Side is equipped with the first grinding wheel 6 outside 1 two sides of support frame as described above in parallel respectively and is fixed on support frame as described above by bearing bracket stand
Second grinding wheel 7, the output shaft of the motor 2 connect with first grinding wheel 6 and by abrasive band 9 and second grinding wheels
7 connections；The press mechanism 3 is fixed on station 1 and is located at 9 top of abrasive band；One round tube 10 is installed in the fixture 4,
The fixture 4 for being equipped with round tube 10 is rotatably arranged in the clamping fixture seat 5 and is located at the underface in abrasive band 9, the folder
Tool seat 5 is flexibly connected the lower end surveyed before the operation 1；
The press mechanism 3 includes mounting plate 31, cylinder 32 and lower platen 33, and the cylinder 32 is vertically arranged to mounting plate 31
Front surface, the cylinder 32 are fixedly connected with the lower platen 33, and the mounting plate 31 is fixed on the front side of the station 1
Face;The underface of the lower platen 33 is provided with a sliding block cylinder 34, and the sliding block cylinder 34 is installed in the following table of lower platen 33
Face, the sliding block lower surface of the sliding block cylinder 34 are connect with a sliding pressure plate 35；The movement of 32 vertical direction of cylinder, which drives, to be slided
Pressing plate 35 pumps, and pushes down or releases far from abrasive band 9；When sliding pressure plate 35 pushes down abrasive band, the sliding block of sliding block cylinder 34 is driven
Sliding pressure plate 35 does the movement with 9 opposite direction of abrasive band, realizes the complete wire drawing to the excircle of round tube 10.
The fixture 4 includes axis 41, stop sleeve 42, left fixes 43 rings and right fixed ring 44, the stop sleeve 45
It is fixedly installed in 46 middle part of axis, the left fixed ring 43 and the right fixed ring 44 are set at 42 both ends of self-supporting sleeve respectively
It is on stop sleeve 42 and fixed by the left fixed ring 43, the right fixed ring 44；Stop sleeve 45 is that round tube 10 provides surely
Fixed supporting role prevents situations such as causing round tube 10 to deform because the pressure of press mechanism 3 is excessive, ensure that processing quality；Make
With the setting of left and right fixed ring, fixed function can either be played to round tube 10, and can be played a supporting role to abrasive band 9, and sand is made
Keep horizontal when two end in contact with 9 round tubes 10, so that the case where avoiding the occurrence of wire drawing turned-down edge, also ensures 10 both ends of round tube
The edge friction in the abrasive band 9 being sunk, extends the service life in abrasive band.
Further include the clamping fixture seat 5 include bottom plate 51, substrate 52, the first side plate 53, the second side plate 54, third side plate 55,
4th side plate 56, the first roller 57 and the second billowing cylinder 58, first side plate 53 is parallel with second side plate 54 to be fixed on
The two sides of 52 upper surface of substrate, 52 two sides of substrate are equipped with to match with the third side plate 55 and the 4th side plate 56
The sliding slot 59 of conjunction, the sliding slot 59 is parallel with first side plate 53 and second side plate 54 respectively, outside the sliding slot 59
The bottom of side, the third side plate 55 and the 4th side plate 56 is equipped with multiple apertures 591, and third side plate 55 and the 4th side plate 56 are used
Pin shaft 592 is crossed to be inserted on the fixed sliding slot 59 of aperture 591；One end that first roller 57 passes through the first side plate 53 is equipped with
First driving wheel 501, one end that the second tin roller 58 passes through third side plate 55, which is equipped with, has the described in the second driving wheel 502
A rotating electric machine 503, the rotating electric machine 503 are provided with below the bottom plate 51 of 502 one end of one driving wheel 501 and the second driving wheel
Rotary shaft on be arranged with the first driving wheel 504 and the second driving wheel 505, first driving wheel 501 and the first driving wheel 501
Between by the first transmission belt 506 connect, between second driving wheel 504 and the second driving wheel 502 pass through the second transmission belt
507 connections, are fixedly connected between the bottom plate 51 and substrate 52 by multiple support plates.Using this structure, when round tube 10
When diameter is smaller, pin shaft in aperture 591 is removed, pushes third side plate 55 and the 4th side plate 56 along close to the side of the first roller 57
To sliding and fixing third side plate 55 and the 4th side plate 56 with pin shaft, the round tube of such minor diameter can also be blocked by fixture 4
Between the first roller 57 and the second billowing cylinder 58；Rotating electric machine 503 starts, and the rotary shaft driving first of rotating electric machine 503 passes
Driving wheel 501 and the rotation of the first driving wheel 502, under the action of corresponding driving belt, the first driving wheel 504 and the second driving wheel
505 rotate synchronously, and drive fixture 4 to rotate, press mechanism 3 is downwardly against abrasive band 9 in 10 surface wire drawing of round tube；Equally work as round tube 10
When being relatively large in diameter, while skidding off third side plate 55 outward and adjustment to distance between two rollers can be realized in the 4th side plate 56,
Therefore the present invention can carry out wire drawing to the round tube for being unable to diameter, and use scope is wide.
It as shown in figures 1 to 6, further include third grinding wheel 8 and support arm 81 for further improvement of the present invention,
Three grinding wheels 8 are connected on support arm 82 by shaft, and support arm 82 leads to the handover of reduction torsion spring 83 on the station 1, the
One grinding wheel 6, the second grinding wheel 7 and the setting triangular in shape of first grinding wheel 8；Brace 82 is inclined hinged；Reduction torsion spring
The spring used among 83 two clamp arm for clothes hanger or clip common in daily life cares for here no longer statement in detail；
Three grinding wheels of triangle setting drive abrasive band movement, guarantee the stability being driven to abrasive band, and support arm rotates and tends to be perpendicular
Straight state is not easy abrasive band 9 so that the third grinding wheel 8 on support arm 82 be made to make the abrasive band 9 of the tight relaxation of third grinding wheel
It skids in 3 grinding wheels, to guarantee processing quality.
As shown in Figure 2 and Figure 5, right respectively on the first roller 57 and second tin roller 58 for further improvement of the present invention
Outward flange 509 there are two should setting；Flange plays the role of limit to fixture, prevents fixture from moving left and right, and causes metal circular surfaces
Wire drawing is uneven.
For further improvement of the present invention, the cylinder 32 or the available oil cylinder substitution of sliding block cylinder 34；Due to starting
System is using pressure generally in 0.2-1.0MP range.Therefore make the dynamical element that cannot do relatively high power using cylinder, work as pushing
Mechanism 3 needs biggish power just can cannot provide sufficient power with cylinder, and oil cylinder is can to provide larger power power
Mechanism, therefore replace cylinder one to provide biggish power with oil cylinder.
Claims (5)
1. a kind of surface wire drawing process device, including support frame (1), motor (2), press mechanism (3), fixture (4) and clamping fixture seat
(5), the motor (2) is fixed on the rear end of support frame as described above (1) side, and the output shaft of the motor (2) is towards the support
The front side of frame (1), support frame as described above (1) two sides outside are equipped with the first grinding wheel (6) in parallel respectively and are fixed on by bearing bracket stand
The second grinding wheel (7) on support frame as described above, the output shaft of the motor (2) connect and pass through with first grinding wheel (6)
Abrasive band (9) is connect with second grinding wheel (7)；The press mechanism (3) is fixed on station (1) and is located at abrasive band (9)
Top；One round tube (10) is installed in the fixture (4), and the fixture (4) for being equipped with round tube (10) is rotatably arranged on
Underface in the clamping fixture seat (5) and positioned at abrasive band (9), the clamping fixture seat (5) are flexibly connected under the preceding survey of the operation (1)
End；
The press mechanism (3) includes mounting plate (31), cylinder (32) and lower platen (33), and the cylinder (32) is vertically arranged to
The front surface of mounting plate (31), the cylinder (32) are fixedly connected with the lower platen (33), and the mounting plate (31) is fixed
Leading flank in the station (1) is provided with a sliding block cylinder (34), the sliding block gas immediately below the lower platen (33)
Cylinder (34) is installed in the lower surface of lower platen (33), and the sliding block lower surface of the sliding block cylinder (34) and a sliding pressure plate (35) are even
It connects；
The fixture (4) includes axis (41), stop sleeve (42), left fixation (43) ring and right fixed ring (44), the support
Sleeve (45) is fixedly installed in the middle part of axis (46), the left fixed ring (43) and the right fixed ring (44) difference self-supporting set
Cylinder (42) both ends are set on stop sleeve (42) and are fixed by the left fixed ring (43), the right fixed ring (44)；
It is characterized in that：The clamping fixture seat (5) include bottom plate (51), substrate (52), the first side plate (53), the second side plate (54),
Third side plate (55), the 4th side plate (56), the first roller (57) and the second billowing cylinder (58), first side plate (53) and described
Second side plate (54) is fixed on the two sides of the substrate (52) upper surface in parallel, and substrate (52) two sides are equipped with and the third
The sliding slot (59) that side plate (55) and the 4th side plate (56) match, the sliding slot (59) respectively with first side plate (53)
It is parallel with the second side plate (54), the outside of the sliding slot (59), the third side plate (55) and the 4th side plate (56) bottom
Portion is equipped with multiple apertures (591), and third side plate (55) and the 4th side plate (56) used pin shaft (592) insertion aperture (591) are solid
On the fixed sliding slot (59)；Described first roller (57) one end is embedded in first side plate (53), other end insertion described second
Side plate (54)；Described second tin roller (58) one end is embedded in the third side plate (55), and the other end is embedded in the 4th side plate (56)；
One end that first roller (57) passes through the first side plate (53) is equipped with the first driving wheel (501), the second tin roller (58)
It is described with the first driving wheel (501) and the second transmission that the second driving wheel (502) is installed across one end of third side plate (55)
It takes turns and is provided with a rotating electric machine (503) below the bottom plate (51) of (502) one end, covered in the rotary shaft of the rotating electric machine (503)
Equipped with the first driving wheel (504) and the second driving wheel (505), between first driving wheel (501) and the first driving wheel (501)
It is connected by the first transmission belt (506), passes through the second transmission between second driving wheel (504) and the second driving wheel (502)
Band (507) connects, and is fixedly connected between the bottom plate (51) and substrate (52) by multiple support plates.
2. wire drawing process device in surface as described in claim 1, it is characterised in that：It further include third grinding wheel (8) and support arm
(81), the third grinding wheel (8) is connected on the support arm (82) by shaft, and the support arm (82) leads to reduction torsion spring
(83) handover is on the station (1), first grinding wheel (6), second grinding wheel (7) and first grinding wheel
(8) setting triangular in shape；.
3. wire drawing process device in surface as described in claim 1, it is characterised in that：First roller.
4. wire drawing process device in surface as described in claim 1, it is characterised in that：The cylinder (32) is substituted with oil cylinder.
5. wire drawing process device in surface as described in claim 1, it is characterised in that：The sliding block cylinder (34) is substituted with oil cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810406442.4A CN108818238A (en) | 2018-04-30 | 2018-04-30 | Surface wire drawing process device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810406442.4A CN108818238A (en) | 2018-04-30 | 2018-04-30 | Surface wire drawing process device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108818238A true CN108818238A (en) | 2018-11-16 |
Family
ID=64147694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810406442.4A Withdrawn CN108818238A (en) | 2018-04-30 | 2018-04-30 | Surface wire drawing process device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108818238A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114310523A (en) * | 2021-12-30 | 2022-04-12 | 广西贵港和乐门业有限公司 | Quick taut manual wire drawing machine of door leaf |
| CN115464519A (en) * | 2022-10-26 | 2022-12-13 | 王鑫 | System for removing oxide layer on surface of metal wire |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6220946B1 (en) * | 1998-02-13 | 2001-04-24 | Philip D. Arnold | Active polishing of rotatable article surfaces |
| US6916232B2 (en) * | 2002-06-14 | 2005-07-12 | Xerox Corporation | Apparatus for superpolishing the inside surface of a seam of a continuous photoreceptor belt |
| EP1514643B1 (en) * | 2003-09-12 | 2007-05-02 | Thielenhaus Technologies GmbH | Process for finishing the surface of revoluton of shafts |
| CN202336787U (en) * | 2011-09-26 | 2012-07-18 | 上海马龙铝型材有限公司 | Straight polishing device for surface of metal round tube |
| CN103962858A (en) * | 2014-05-14 | 2014-08-06 | 防城港中一重工有限公司 | Auxiliary device for machining groove of metallic pipe |
| CN104043977A (en) * | 2013-03-14 | 2014-09-17 | 天津硕智机电科技有限公司 | Quick clamp for milling thin-walled tube type workpiece |
| CN105108613A (en) * | 2015-08-29 | 2015-12-02 | 东莞市钜铧机械有限公司 | Triangular plane wire straightening machine |
-
2018
- 2018-04-30 CN CN201810406442.4A patent/CN108818238A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6220946B1 (en) * | 1998-02-13 | 2001-04-24 | Philip D. Arnold | Active polishing of rotatable article surfaces |
| US6916232B2 (en) * | 2002-06-14 | 2005-07-12 | Xerox Corporation | Apparatus for superpolishing the inside surface of a seam of a continuous photoreceptor belt |
| EP1514643B1 (en) * | 2003-09-12 | 2007-05-02 | Thielenhaus Technologies GmbH | Process for finishing the surface of revoluton of shafts |
| CN202336787U (en) * | 2011-09-26 | 2012-07-18 | 上海马龙铝型材有限公司 | Straight polishing device for surface of metal round tube |
| CN104043977A (en) * | 2013-03-14 | 2014-09-17 | 天津硕智机电科技有限公司 | Quick clamp for milling thin-walled tube type workpiece |
| CN103962858A (en) * | 2014-05-14 | 2014-08-06 | 防城港中一重工有限公司 | Auxiliary device for machining groove of metallic pipe |
| CN105108613A (en) * | 2015-08-29 | 2015-12-02 | 东莞市钜铧机械有限公司 | Triangular plane wire straightening machine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114310523A (en) * | 2021-12-30 | 2022-04-12 | 广西贵港和乐门业有限公司 | Quick taut manual wire drawing machine of door leaf |
| CN114310523B (en) * | 2021-12-30 | 2023-10-20 | 广西贵港和乐门业有限公司 | Manual wire drawing machine of door leaf of tensioning fast |
| CN115464519A (en) * | 2022-10-26 | 2022-12-13 | 王鑫 | System for removing oxide layer on surface of metal wire |
| CN115464519B (en) * | 2022-10-26 | 2024-02-13 | 天津市春鹏预应力钢绞线有限公司 | System for removing oxide layer on surface of metal wire |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181116 |