CN105619073B - Rectangular wire ring lapping machine spot welded type device for hooping - Google Patents

Rectangular wire ring lapping machine spot welded type device for hooping Download PDF

Info

Publication number
CN105619073B
CN105619073B CN201610084357.1A CN201610084357A CN105619073B CN 105619073 B CN105619073 B CN 105619073B CN 201610084357 A CN201610084357 A CN 201610084357A CN 105619073 B CN105619073 B CN 105619073B
Authority
CN
China
Prior art keywords
block
steel strip
thin steel
sleeve
folded block
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.)
Active
Application number
CN201610084357.1A
Other languages
Chinese (zh)
Other versions
CN105619073A (en
Inventor
张宗晨
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.)
Tianjin Saixiang Technology Co Ltd
Original Assignee
Tianjin Saixiang Technology 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 Tianjin Saixiang Technology Co Ltd filed Critical Tianjin Saixiang Technology Co Ltd
Priority to CN201610084357.1A priority Critical patent/CN105619073B/en
Publication of CN105619073A publication Critical patent/CN105619073A/en
Application granted granted Critical
Publication of CN105619073B publication Critical patent/CN105619073B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P23/00Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)

Abstract

The invention discloses a kind of rectangular wire ring lapping machine spot welded type device for hooping, it includes workbench, thin steel strip volume, transmission roller group, clamping conveying device, apparatus for bending and mash welder;Apparatus for bending includes that successively thin steel strip can be carried out pushing block, the 3rd folded block and the 4th folded block of 90 ° of bendings;Pushing block includes the first cylinder, sleeve and connector, and sleeve inner is hollow and one end is blocked by connector, and the other end is fitted with a jacking block, compression spring is provided between jacking block and connector, the both sides of sleeve further respectively have the first folded block and the second folded block.The actuation time of thin steel strip is tied up and fixed present invention reduces the monocycle, improves the efficiency of wire loop shaping;This other scheme only requires that individual layer folding can meet spot welding and fix, and the number of plies of thin steel strip superposition is reduced to the full extent, so as to reduce the bump sizes in the outer section of wire loop to the full extent.

Description

Rectangular wire ring lapping machine spot welded type device for hooping
Technical field
The present invention relates to a kind of binding apparatus of wire loop, especially a kind of rectangular wire ring lapping machine spot welded type clip dress Put.
Background technology
In sulfidation, because glue, every steel wire table have been covered in the surface of the wire loop steel wire made of circle cross section steel wire The deposited glue in face will flow, and wire loop can not be kept original section configuration, in addition have at random (this phenomenon exists Tire plant generally existing, including for the tubeless oblique 15 ° of hexagonal beads of all steel);And the steel wire being made of profile wire There is no flowable sizing material between circle steel wire and steel wire, and by the thin steel strip banding of circumferentially decile, in tire base sulfidation Its own geometry is maintained.
Rectangular wire wire loop is the rectangular wire multilayer for not covering glue with surface, and multiply is closely wound, then is tied with thin steel strip Roll.In finished product tire, due to there is no to be between the sizing material that can be deformed, and each layer steel wire between the steel wire of wire loop Plane contact, so, in tyre bead stress, every steel wire enters stress simultaneously, and overall performance is good so that wire loop is to wheel The tightening force quite stable of rim, not only can reliably transmit power of vehicle, and the fatigue that tyre bead portion is reduced to greatest extent should Power, in turn ensure that air-tightness good between tyre bead and wheel rim, (this point is special to the wire loop for 15 ° of the tubeless wedged bottom of all steel It is unimportant), and the service life of tire also extended.
But the technique of tying up of clip is still to carry out manual bending or by some mechanical group with specific purpose tool at present Part carries out automatic bending to clip.Both the above method exists less efficient and tying up needs multilayer folding raised (such as Fig. 1 institutes Show) it can just realize that bending is fixed.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of rectangular wire ring lapping machine spot welded type clip of efficiency high dress Put.
In order to solve the above-mentioned technical problem, the present invention is rolled up including workbench and the thin steel strip installed on the table, passed Pass roller group, clamping conveying device, for thin steel strip to be bent into rectangle clip and apparatus for bending and use of the banding on wire loop In the mash welder for being welded and fixed rectangle clip;
The thin steel strip volume is rotationally kept flat on the table;
The transmission roller group includes installing on the table and being capable of multiple rollers of rotation, is led in the fixation of multiple rollers To the thin steel strip on the lower thin steel strip volume of effect apparatus for bending working position is moved into through clamping conveying device;
The clamping conveying device includes conveying cylinder and clamping cylinder, and the conveying cylinder is fixed on the table and is somebody's turn to do The output end for conveying cylinder is provided with fixed block and gripping block, and the thin steel strip is worn in the space between fixed block and gripping block Cross, the gripping block can be pressed on fixed block to realize the clamping to thin steel strip, Jin Erbian under the drive of clamping cylinder In severing of the postorder to thin steel strip;
The apparatus for bending includes that successively thin steel strip can be carried out pushing block, the 3rd folded block and the four fold of 90 ° of bendings Curved piece;The pushing block includes the first cylinder, sleeve and the connector for connecting the first cylinder and sleeve, the sleeve inner Hollow and one end is blocked by connector, and the other end, which is fitted with one, is used to holding out against the jacking block of thin steel strip, the jacking block and connector it Between be additionally provided with a compression spring, the both sides of the sleeve, which further respectively have one, to be used to carry out thin steel strip the first of bending and severing Folded block and one is used for the second folded block to thin steel strip progress bending;3rd folded block and the 4th folded block pass through respectively The driving of one second cylinder carries out bending to realize to thin steel strip.
The thin steel strip volume middle part is formed with circular hole and is set with the rotating shaft being vertically arranged on the table.
The sleeve side is fitted in provided with two the first screw rods, first folded block through two first screw rods On sleeve, one first adjustment spring is also respectively installed with two first screw rods the first folded block is pressed on into sleeve On;The sleeve opposite side is fitted in set provided with two the second screw rods, second folded block through two second screw rods On cylinder, one second adjustment spring is also respectively installed with two second screw rods the second folded block is pressed on sleeve.
3rd folded block and the 4th folded block are connected by a connecting plate with corresponding second cylinder respectively, wherein the Three folded blocks and the 4th folded block are slidably connected and the 3rd bending with corresponding connecting plate by sliding block and sliding groove structure respectively Block and the 4th folded block are also locked by a bolt respectively with corresponding connecting plate.
The beneficial effects of the invention are as follows:The present invention, by a series of automatic bending of manipulators, is finally led to clip thin steel strip Stitch welding machine is crossed to fix thin steel strip, shorten the monocycle tie up and fixed thin steel strip actuation time, improve wire loop The efficiency of shaping;This other scheme only requires that individual layer folding can meet spot welding and fix, and thin steel strip is reduced to the full extent and is folded Plus the number of plies, so as to reduce the bump sizes in the outer section of wire loop to the full extent.
Brief description of the drawings
Fig. 1 is the schematic cross-section after the bending of thin steel strip in the prior art;
Fig. 2 is that rectangular wire ring lapping machine spot welded type device for hooping of the present invention is arranged on the solid that wire loop is rolled on device Structural representation;
Fig. 3 is that rectangular wire ring lapping machine spot welded type device for hooping of the present invention is arranged on the vertical view that wire loop is rolled on device Structural representation;
Fig. 4 is the part-structure enlarged diagram in Fig. 3;
Fig. 5 is the structural representation of apparatus for bending in rectangular wire ring lapping machine spot welded type device for hooping of the present invention;
Fig. 6 is the dimensional structure diagram of pushing block in the present invention;
Fig. 7 is the cutting structural representation of pushing block in the present invention;
Fig. 8 is the section signal for the rectangle clip realized using rectangular wire ring lapping machine spot welded type device for hooping of the present invention Figure.
Embodiment
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description:
As shown in Figures 2 and 3, rectangular wire ring lapping machine spot welded type device for hooping of the invention is rolled into installed in wire loop On device.Wire loop is rolled into device and is mainly made up of rolling up dish for steel, bus cable device and the part of steel wire unwinding equipment three, and the steel wire is led The main multiple I-beam wheel paying out machines set by a row of opening apparatus are constituted, and I-beam wheel paying out machine can be using of the prior art normal Advise product;The effect of the bus cable device is to ensure every steel wire ordered arrangement;The rolling up dish for steel is used to wind rectangular wire A few, and cause the shaping of rectangular wire wire loop.Pass through rectangular wire ring lapping machine spot welding again after the shaping of rectangular wire wire loop Formula device for hooping is realized ties up fixation to wire loop.
As shown in Figure 4 and Figure 5, rectangular wire ring lapping machine spot welded type device for hooping of the invention include workbench 1 and Thin steel strip on workbench 1 rolls up 2, transmission roller group 3, clamping conveying device 4, for thin steel strip to be bent into rectangle clip 9 and apparatus for bending of the banding on wire loop and the mash welder 5 for rectangle clip 9 to be welded and fixed.
The thin steel strip volume 2 is rotationally lain on workbench 1;The middle part of thin steel strip volume 2 is formed with circular hole and is set with In the rotating shaft being vertically arranged on workbench 1, thin steel strip volume 2 can be rotated relative on workbench 1, in order to which thin steel strip is exported.
The transmission roller group 3 includes being arranged on workbench 1 and being capable of multiple rollers of rotation, in the fixation of multiple rollers Thin steel strip under guide effect on thin steel strip volume 2 is moved into apparatus for bending working position through clamping conveying device 4.
The clamping conveying device 4 includes conveying cylinder and clamping cylinder, the conveying cylinder be fixed on workbench 1 and The output end of the conveying cylinder is provided with fixed block and gripping block, and the thin steel strip is worn in the space between fixed block and gripping block Cross, the gripping block can be pressed on fixed block to realize the clamping to thin steel strip, Jin Erbian under the drive of clamping cylinder In severing of the postorder to thin steel strip.
As shown in Figures 4 to 7, the apparatus for bending includes that successively thin steel strip can be carried out the pushing block 6 of 90 ° of bendings, the Three folded blocks 7 and the 4th folded block 8;The pushing block 6 includes the first cylinder 601, sleeve 602 and for connecting the first cylinder 601 and the connector 603 of sleeve 602, the inner hollow of sleeve 602 and one end is blocked by connector 603, the other end is fitted with One jacking block 604 for holding out against thin steel strip, is additionally provided with a compression spring 605 between the jacking block 604 and connector 603, described The both sides of sleeve 602, which further respectively have first folded block 606 for being used to carrying out thin steel strip bending and severing and one, to be used for pair Thin steel strip carries out the second folded block 607 of bending;3rd folded block 7 and the 4th folded block 8 pass through one second cylinder respectively 10 drivings carry out bending to realize to thin steel strip.Thin steel strip forms rectangle clip 9 (as shown in Figure 8) after being bent over, then passes through point Welding machine 5 is welded and fixed to the junction of rectangle clip 9.
As shown in Figure 6 and Figure 7, the side of sleeve 602 is provided with two the first screw rods 608, and first folded block 606 is worn Cross two first screw rods 608 to be fitted on sleeve 602, one first is also respectively installed with two first screw rods 608 Adjust spring 609 first folded block 606 is pressed on sleeve 602;The opposite side of sleeve 602 is provided with two the second screw rods 610, second folded block 607 is fitted on sleeve 602 through two second screw rods 610, two second screw rods Also it is respectively installed with one second adjustment spring 611 on 610 second folded block 607 is pressed on sleeve 602.Wherein first adjusts The whole adjustment of spring 609 and second spring 611 can use common spring or disc spring.Using above-mentioned first folded block 606, the second bending The connected mode of block 607 and sleeve 602, can cause the first folded block 606, the second folded block 607 to the same of thin steel strip bending When ensure be close to state, simultaneously as dislocation collision, the structure can meet the first folded block 606, the second folded block 607 relative to Sleeve 602 has length travel, is conducive to that more preferably, more closely thin steel strip is banded on wire loop.In addition, the first folded block 606th, the place that the second folded block 607 is contacted with thin steel strip is each formed with rounding, meets collision transition.
As shown in Figure 4 and Figure 5, the 3rd folded block 7 and the 4th folded block 8 respectively by a connecting plate 11 with it is corresponding Second cylinder 10 is connected, wherein the 3rd folded block 7 and the 4th folded block 8 pass through sliding block and chute with corresponding connecting plate 11 respectively Structure is slidably connected and the 3rd folded block 7 and the 4th folded block 8 are also locked by a bolt respectively with corresponding connecting plate 11. 3rd folded block 7 and the 4th folded block 8 relative on connecting plate 11 can be slided, to change the 3rd folded block 7 and the 4th folded block 8 Position, be conveniently adjusted or further adapt to different size rectangle clip 9 formation, in the 3rd folded block 7 and the 4th bending , can be by the cooperation of slotted hole on bolt and the 3rd folded block 7, the 4th folded block 8, by after the completion of the position adjustment of block 8 Together with three folded blocks 7, the 4th folded block 8 are fastened with corresponding connecting plate 11.
The operation principle of the present invention:Under the guide effect of transmission roller group 3, thin steel strip is moved through clamping conveying device 4 To apparatus for bending working position, pushing block 6 starts to push ahead work, and thin steel strip is compressed and is labelled to shaping steel wire by jacking block 604 first Circle side, jacking block 604 needs lasting compression action until bending completes the release of rectangle clip 9, and pushing block 6 continues to push away forward Enter, thin steel strip can be distinguished 90 ° of bending by the first folded block 606 and the second folded block 607 so that thin steel strip is compressed and is labelled into On the inside and outside two sides of shaped steel wire ring, in the bending process of the first folded block 606, clamping conveying device 4 clamps thin steel strip all the time, enters And the cut-off knife on the first folded block 606 can be by thin steel strip severing so that the pierce tap being fitted on outside shaping steel wire circle (length for being fitted in the pierce tap on outside shaping steel wire circle can also be smaller with the consistency of thickness of shaping steel wire circle just for length In the thickness of shaping steel wire circle);After the first folded block 606 and the second folded block 607 complete bending, the 3rd folded block 7 and the Four folded blocks 8 carry out 90 ° of bendings again to the thin steel strip after bending successively so that thin steel strip formation one is closely banded in shaping Rectangle clip 9 on wire loop, is finally welded and fixed by mash welder 5 to the junction of rectangle clip 9 again.
In summary, present disclosure is not limited in the above embodiments, and those skilled in the art can be Propose other embodiments within the technological guidance's thought of the present invention, but these embodiments be included in the scope of the present invention it It is interior.

Claims (4)

1. a kind of rectangular wire ring lapping machine spot welded type device for hooping, it is characterised in that:Including workbench (1) and installed in work Make the thin steel strip volume (2) on platform (1), transmit roller group (3), clamping conveying device (4), for thin steel strip to be bent into rectangle clip And apparatus for bending of the banding on wire loop and the mash welder (5) for rectangle clip (9) to be welded and fixed (9);
The thin steel strip volume (2) is rotationally lain on workbench (1);
The transmission roller group (3) includes being arranged on workbench (1) and being capable of multiple rollers of rotation, in the fixation of multiple rollers Thin steel strip under guide effect on thin steel strip volume (2) is moved into apparatus for bending working position through clamping conveying device (4);
The clamping conveying device (4) includes conveying cylinder and clamping cylinder, the conveying cylinder be fixed on workbench (1) and The output end of the conveying cylinder is provided with fixed block and gripping block, and the thin steel strip is worn in the space between fixed block and gripping block Cross, the gripping block can be pressed on fixed block to realize the clamping to thin steel strip, Jin Erbian under the drive of clamping cylinder In severing of the postorder to thin steel strip;
The apparatus for bending includes that successively thin steel strip can be carried out pushing block (6), the 3rd folded block (7) and the 4th of 90 ° of bendings Folded block (8);The pushing block (6) includes the first cylinder (601), sleeve (602) and for connecting the first cylinder (601) and set The connector (603) of cylinder (602), sleeve (602) inner hollow and one end are blocked by connector (603), other end inserting There is a jacking block (604) for being used to hold out against thin steel strip, a compression spring is additionally provided between the jacking block (604) and connector (603) (605), the both sides of the sleeve (602) further respectively have first folded block for being used to carry out thin steel strip bending and severing (606) and one be used for thin steel strip carry out bending the second folded block (607);3rd folded block (7) and the 4th folded block (8) bending is carried out to thin steel strip to realize by the driving of one second cylinder (10) respectively.
2. according to the rectangular wire ring lapping machine spot welded type device for hooping described in claim 1, it is characterised in that:The thin steel strip It is formed with circular hole in the middle part of volume (2) and is sleeved in the rotating shaft being vertically arranged on workbench (1).
3. according to the rectangular wire ring lapping machine spot welded type device for hooping described in claim 1, it is characterised in that:The sleeve (602) side is provided with two the first screw rods (608), and first folded block (606) is pasted through two first screw rods (608) Close on sleeve (602), one first adjustment spring (609) is also respectively installed with two first screw rods (608) with by the One folded block (606) is pressed on sleeve (602);Sleeve (602) opposite side is described provided with two the second screw rods (610) Second folded block (607) is fitted on sleeve (602) through two second screw rods (610), two second screw rods (610) also it is respectively installed with one second adjustment spring (611) on the second folded block (607) is pressed on sleeve (602).
4. according to the rectangular wire ring lapping machine spot welded type device for hooping described in claim 1, it is characterised in that:3rd folding Curved piece (7) and the 4th folded block (8) are connected by a connecting plate (11) with corresponding second cylinder (10) respectively, wherein the 3rd folding Curved piece (7) and the 4th folded block (8) are slidably connected and with corresponding connecting plate (11) by sliding block and sliding groove structure respectively Three folded blocks (7) and the 4th folded block (8) are also locked by a bolt respectively with corresponding connecting plate (11).
CN201610084357.1A 2016-02-14 2016-02-14 Rectangular wire ring lapping machine spot welded type device for hooping Active CN105619073B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610084357.1A CN105619073B (en) 2016-02-14 2016-02-14 Rectangular wire ring lapping machine spot welded type device for hooping

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610084357.1A CN105619073B (en) 2016-02-14 2016-02-14 Rectangular wire ring lapping machine spot welded type device for hooping

Publications (2)

Publication Number Publication Date
CN105619073A CN105619073A (en) 2016-06-01
CN105619073B true CN105619073B (en) 2017-10-31

Family

ID=56034622

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610084357.1A Active CN105619073B (en) 2016-02-14 2016-02-14 Rectangular wire ring lapping machine spot welded type device for hooping

Country Status (1)

Country Link
CN (1) CN105619073B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109317530A (en) * 2018-11-19 2019-02-12 青岛邦钲线管桥架有限公司 A kind of galvanized steel coil of strip processing assembly line
CN110202378B (en) * 2019-07-16 2019-12-24 珠海市精实测控技术有限公司 Automatic steel band conveying, winding and welding mechanism
CN111733850A (en) * 2020-08-20 2020-10-02 中煤特殊凿井有限责任公司 Method for eliminating scratches of liquid supply pipe in lowering and recovering process in freezer
CN113369909B (en) * 2021-07-27 2022-05-24 枣阳德立智机械制造有限公司 Iron hoop production and processing equipment with hoop rolling, welding and edge rolling functions
CN114309369B (en) * 2022-01-17 2022-11-08 山东胜通钢帘线有限公司 Tire bead ring head binding machine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204122652U (en) * 2014-09-30 2015-01-28 杨敏 The reinforcing bar anchor ear making apparatus in construction site
CN104525787A (en) * 2014-12-03 2015-04-22 建科机械(天津)股份有限公司 Hoop bending device of quadrate reinforcement cage forming machine
CN104624858A (en) * 2015-02-04 2015-05-20 冯广建 Misplacement material stacking device for steel bar bending machine
CN204934421U (en) * 2015-09-08 2016-01-06 郑州市聚能建筑机械有限公司 Hoop bender
CN205020709U (en) * 2015-09-29 2016-02-10 建科机械(天津)股份有限公司 Crooked stirrup and mechanism of welding stirrup on square steel reinforcement cage owner muscle
CN205393989U (en) * 2016-02-14 2016-07-27 天津赛象科技股份有限公司 Rectangle steel wire winding coiler spot welding formula clamp device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020082029A (en) * 2001-04-23 2002-10-30 김석성 Method to product chair spring in car

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204122652U (en) * 2014-09-30 2015-01-28 杨敏 The reinforcing bar anchor ear making apparatus in construction site
CN104525787A (en) * 2014-12-03 2015-04-22 建科机械(天津)股份有限公司 Hoop bending device of quadrate reinforcement cage forming machine
CN104624858A (en) * 2015-02-04 2015-05-20 冯广建 Misplacement material stacking device for steel bar bending machine
CN204934421U (en) * 2015-09-08 2016-01-06 郑州市聚能建筑机械有限公司 Hoop bender
CN205020709U (en) * 2015-09-29 2016-02-10 建科机械(天津)股份有限公司 Crooked stirrup and mechanism of welding stirrup on square steel reinforcement cage owner muscle
CN205393989U (en) * 2016-02-14 2016-07-27 天津赛象科技股份有限公司 Rectangle steel wire winding coiler spot welding formula clamp device

Also Published As

Publication number Publication date
CN105619073A (en) 2016-06-01

Similar Documents

Publication Publication Date Title
CN105619073B (en) Rectangular wire ring lapping machine spot welded type device for hooping
CN109043698B (en) High-speed folding mask machine
CN104785854B (en) A kind of surface trimming steel pipe device
CN112026186B (en) Production equipment and production method of plane mask
CN110367623B (en) Annular ear belt mask machine and annular ear belt mask production process
CN207594410U (en) For shearing the device of packaging bag
CN207397936U (en) A kind of magnetic core tape sticking device
CN105922615B (en) Engineering tyre steel cushion rubber automatic laminating machine utilizing
CN205393989U (en) Rectangle steel wire winding coiler spot welding formula clamp device
KR20130080114A (en) Manufacturing apparatus and manufacturing method of clamp for hose
CN107364595B (en) Full-automatic reinforcing bar binding equipment
CN102642319B (en) Low-cross-section wide-base all-steel radial tire forming method and all-steel radial tire
CN203316869U (en) Automatic wire bonding machine of audio plug
CN205045588U (en) Driving mechanism of curtain fabric unwinding tool
CN203158253U (en) Automatic packaging device of metal meshes
CN213663811U (en) KN95 full-automatic folding mask machine equipment
US3662940A (en) Method and apparatus for forming cylinders from strip material
CN204871713U (en) Strap insulating layer packagine machine
CN213074610U (en) Full-automatic three-dimensional gauze mask machine
CN103022412A (en) Full-automatic adhesive tape adhering machine
CN209427149U (en) Manual shake out equipment for packing box
CN104816061B (en) Contact welding fabrication technique and automatic processing device
CN207241009U (en) A kind of automatic reeling machine
JPH0579931U (en) Winding machine
EP1171251A1 (en) Method and machine for the manufacture of metallic frames for inner spring mattresses

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant