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CN1593881A - Injection mould for roller brush shaft of suction cleaner and manufacturing and using method thereof - Google Patents

Injection mould for roller brush shaft of suction cleaner and manufacturing and using method thereof Download PDF

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Publication number
CN1593881A
CN1593881A CN 200410027893 CN200410027893A CN1593881A CN 1593881 A CN1593881 A CN 1593881A CN 200410027893 CN200410027893 CN 200410027893 CN 200410027893 A CN200410027893 A CN 200410027893A CN 1593881 A CN1593881 A CN 1593881A
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CN
China
Prior art keywords
mould
injection mold
dust collector
rolling brush
push rod
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
Application number
CN 200410027893
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Chinese (zh)
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CN100348399C (en
Inventor
王超云
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.)
SHUN HING PLASTIC MOULD (SHENZHEN) CO Ltd
Original Assignee
SHUN HING PLASTIC MOULD (SHENZHEN) 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 SHUN HING PLASTIC MOULD (SHENZHEN) CO Ltd filed Critical SHUN HING PLASTIC MOULD (SHENZHEN) CO Ltd
Priority to CNB2004100278935A priority Critical patent/CN100348399C/en
Publication of CN1593881A publication Critical patent/CN1593881A/en
Application granted granted Critical
Publication of CN100348399C publication Critical patent/CN100348399C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The invention relates to a kind of casting module for the rolling brush of cleaner and the method to produce it. The method includes: A. design and prepare a module length of which is equal to that of the rolling brush shaft; then divide the module into n parts, make the angle of brush slot into n parts also; then process each part. B. assembles the processed parts in order, then form the whole module with locating pin and screw bolt. C. assemble the whole module, outboard, back seat, fore module, mandril and inletting unit of fore module, then take regular casting. The rolling brush shafts of cleaner produced with the method has uniform shape. The invention can improve productivity and goods quality.

Description

The injection mold of dust collector rolling brush axle and manufacturing using method
Technical field the present invention relates to heat injection molding equipment, relates in particular to the injection mold of dust collector rolling brush axle and makes using method.
The dust catcher that drive brush is arranged in the background technology prior art embeds bristle in the brush groove of roller brush shaft, in order to cleaning dust rubbish, and the aligned twisted often of the brush groove on the roller brush shaft is not and the parallel straight line of brush axis.
The dust collector rolling brush axle that prior art is manufactured often adopts extrusion molding, the dust collector rolling brush axle of making like this, because the ot-yet-hardened typing, so percent defective is very high.If adopt injection moulding process to make the dust collector rolling brush axle since the brush groove of roller brush shaft distortion angle is very big from the top to bottom, present an arching trajectory, its injection mold adopts line cutting or other processing methods all to be difficult to processing and forming.
Summary of the invention the objective of the invention is to propose a kind of injection mold of dust collector rolling brush axle and makes using method, manufacture method of the present invention is the injection mold segmentation manufacturing with the dust collector rolling brush axle, total distortion angle is resolved into some little distortion angles, total arching trajectory is decomposed into the little track that is approximately straight line.Adopt the wire cutting method or the additive method of prior art like this, it is qualified just to be easy to the injection mold of segmentation is made.After the segmentation manufacturing, again each section amalgamation is assembled into the injection mold of total dust collector rolling brush axle, the dust collector rolling brush axle is created with conventional Shooting Technique.With the dust collector rolling brush axle that the injection mold and the manufacturing using method of dust collector rolling brush axle of the present invention are produced, the consistent standard of profile, productivity ratio height, percent defective is low.
The present invention realizes by adopting following technical scheme.
Implement a kind of manufacturing using method of dust collector rolling brush axle injection mold, comprise step:
A. to design an isometric injection mold overall for the dust collector rolling brush axle, then injection mold totally is divided into again the design of n section, total distortion angle of brush groove on the roller brush shaft is decomposed n section split mould and processes;
B. the n section split mould of completion of processing being made up in order the back, to be assembled into injection mold by alignment pin and fastening bolt overall;
C. the injection mold after will assembling overall and mould outside plate, mould back seat, preceding die body, push rod, front mould mold insert always are fitted together, and carry out conventional injection moulding then.
The described alignment pin of said method is no less than 2.
The described method of step b, C comprises following assembly method step in the said method:
A. fastening bolt overall and mould outside plate fixed connection also with injection mold;
B. described then mould back seat and mould outside plate fixed connection;
C., one push rod is set withstands on the front mould mold insert, described push rod also passes the mould back seat again after passing the mould outside plate, extends the rod head;
D. on push rod is positioned at the part of mould back seat a slide block is set, this slide block slides between the inner chamber slide wall of mould back seat;
E., preceding die body is set again, described front mould mold insert and front mould sports association knot, the plastic cement passage is die body introducing in the past also; Can relatively move between mould outside plate before described after die body and the combination, the mould back seat, when current die body closely contacted the mould outside plate, it is overall that the front mould mold insert stretches into injection mold, and withstand on the end of push rod.
The manufacturing using method of above-mentioned dust collector rolling brush axle injection mold, step c is described to carry out conventional injection moulding, may further comprise the steps:
A. thermoplastic cement is overall through plastic cement passage injection injection mold;
B. cooling water goes into circulation by the water channel that each water channel joint is communicated with, and is the cooling of totally lowering the temperature of preceding die body and injection mold;
C. then preceding die body is removed sufficiently long distance together with the front mould mold insert;
D. put on the bar head with an external force, push rod will be the dust collector rolling brush axle of injection mo(u)lding from injection mold is overall, rotate and eject;
E. repeat the next operation cycle.
The present invention also further obtains implementing by following technical scheme:
The injection mold of a kind of dust collector rolling brush axle of design processing, comprise mould outside plate, mould back seat, preceding die body, push rod, front mould mold insert, especially: comprise that also injection mold is overall, described injection mold is totally long-pending measure-alike by the n segment body, first segmented die, second segmented die that the distortion angle of brush channel mould continues and twists ... the n segmented die is formed.
Described first segmented die, second segmented die ... all have in each segmentation of n segmented die all to have in the locating hole that is no less than one and each segmentation and be no less than 2 fixing hole.
The continue summation of distortion angle of described brush channel mould equals to brush groove by the distortion angle between head-to-foot.
Described first segmented die, second segmented die ... it is overall that the n segmented die is assembled into injection mold by alignment pin and fastening bolt, and overall and mould outside plate is assembled into one with injection mold by fastening bolt.
Described mould outside plate and the connection of mould back seat are assembled together; Have a push rod to pass the mould outside plate therebetween, stretch into injection mold overall within, described push rod extends to the bar head outside the mould back seat, described push rod has slide block on the part within the mould back seat.
Die body, front mould mold insert are bound up before described, and the plastic cement passage is arranged on the preceding die body; When the front mould mold insert closely contacted with the mould outside plate, the front mould mold insert contacted with the end of push rod.
Compared with prior art, the present invention makes the injection mold segmentation of dust collector rolling brush axle, and total distortion angle is resolved into some little distortion angles, and total arching trajectory is decomposed into the little track that is approximately straight line.Adopt the wire cutting method or the additive method of prior art like this, just be easy to injection mold manufacturing success segmentation.After the segmentation manufacturing, again each section amalgamation is assembled into the injection mold of total dust collector rolling brush axle, the dust collector rolling brush axle is created with conventional Shooting Technique.With the dust collector rolling brush axle that the injection mold and the manufacturing using method of dust collector rolling brush axle of the present invention are produced, the consistent standard of profile, productivity ratio height, percent defective is low.
Description of drawings Fig. 1 is the solid shape figure of dust collector rolling brush axle;
Fig. 2 is the injection mold of dust collector rolling brush axle of the present invention and makes the overall schematic diagram of injection mold in the using method;
Fig. 3 is the overall schematic diagram that decomposes of injection mold in the method for the invention, the mould;
Fig. 4 is the first segmented die end face schematic diagram in the method for the invention, the mould;
Fig. 5 is the first segmented die schematic bottom view in the method for the invention, the mould;
Fig. 6 is the first segmented die side cut away view in the method for the invention, the mould;
Fig. 7 is the second segmented die end face schematic diagram in the method for the invention, the mould;
Fig. 8 is the second segmented die schematic bottom view in the method for the invention, the mould;
Fig. 9 is the 3rd a segmented die end face schematic diagram in the method for the invention, the mould;
Figure 10 is the 3rd a segmented die schematic bottom view in the method for the invention, the mould;
Figure 11 is the 4th a segmented die end face schematic diagram in the method for the invention, the mould;
Figure 12 is the 4th a segmented die schematic bottom view in the method for the invention, the mould;
Figure 13 is the method for the invention, mould general assembly schematic diagram.
The specific embodiment is further described in detail the present invention below in conjunction with accompanying drawing and most preferred embodiment.
With reference to Fig. 1, because the surface of dust collector rolling brush axle 10 is columniform, so the E point of the brush groove 11 of dust collector rolling brush axle 10 from the A point at top to the bottom is a camber line, marks B, C, D point in most preferred embodiment of the present invention thereon, the distance between each segment equates.Dust collector rolling brush axle 10 is a hollow, and axis hole 12 is arranged.
As Fig. 2~shown in Figure 13:
Implement a kind of best using method of making of injection mold of dust collector rolling brush axle, described method comprises step:
A. to design an isometric injection mold overall 200 for the dust collector rolling brush axle, then injection mold overall 200 is divided into again the design of n section, total distortion angle of brush groove 11 on the roller brush shaft 10 is decomposed n section split mould and processes;
As Fig. 4~shown in Figure 12, in most preferred embodiment, injection mold overall 200 is divided into 4 sections designs, total distortion angle of brush groove 11 on the roller brush shaft 10 is decomposed 4 sections split moulds for 72 °, 18 ° every section and process;
B. the n section split mould of completion of processing is made up in order the back and be assembled into injection mold overall 200 by alignment pin 206 and fastening bolt 205;
As shown in figure 13, in most preferred embodiment, the first split mould 210, the second split mould 220, triad mould 230, the tetrad mould 240 of completion of processing made up the back in order be assembled into injection mold overall 200 by alignment pin 206 and fastening bolt 205;
C. the injection mold overall 200 after will assembling always is fitted together with mould outside plate 40, mould back seat 50, preceding die body 80, push rod 100, front mould mold insert 30, carries out conventional injection moulding then.
Described alignment pin 206 is no less than 2.
As shown in figure 13: step b, C comprise following assembly method step in the above-mentioned best implementation method:
A. fastening bolt 205 is also with injection mold overall 200 and mould outside plate 40 fixed connections;
B. described then mould back seat 50 and mould outside plate 40 fixed connections;
C., one push rod 100 is set withstands on the front mould mold insert 30, described push rod 100 also passes mould back seat 50 again after passing mould outside plate 40, extends rod head 102;
D. on push rod 100 is positioned at the part of mould back seat 50 slide block 106 is set, this slide block 106 is in 51 slips of inner chamber slide wall of mould back seat 50;
E. die body 80 before being provided with again, described front mould mold insert 30 connects with preceding die body 80, and plastic cement passage 31 is die body 80 introducings in the past also; Can relatively move between the mould outside plate 40, mould back seat 50 before described after die body 80 and the combination, when current die body 80 closely contacted mould outside plate 40, it is overall 200 that front mould mold insert 30 stretches into injection mold, and withstand on the end of push rod 100.
The best of above-mentioned dust collector rolling brush axle injection mold is made using method, and step c is described to carry out conventional injection moulding, may further comprise the steps:
A. thermoplastic cement injects injection mold overall 200 through plastic cement passage 31;
B. cooling water flows by the water channel that water channel joint 310,320,330,340,350,360 is communicated with, and is preceding die body 80 and the overall 200 cooling coolings of injection mold;
C. then preceding die body 80 is removed sufficiently long distance together with front mould mold insert 30;
D. put on bar head 102 with an external force, the dust collector rolling brush axle 10 that push rod 100 will have been finalized the design rotates from injection mold overall 200 and ejects;
E. repeat the next operation cycle.
The present invention can also be by following optimum implementation, and is further accomplished:
As shown in figure 13, manufacture and design a kind of injection mold of dust collector rolling brush axle, comprise mould outside plate 40, mould back seat 50, preceding die body 80, push rod 100, front mould mold insert 30, especially: also comprise injection mold overall 200, described injection mold overall 200 is long-pending measure-alike by the n segment body, brush channel mould 211,221,231,241 ... first segmented die 210, second segmented die 220 that the distortion angle of 2n1 continues and twists ... n segmented die 2n0 forms.
In most preferred embodiment, described injection mold overall 200 is long-pending measure-alike by 4 segment bodies, first segmented die 210, second segmented die 220, the 3rd segmented die 230 and the 4th segmented die 240 compositions that the distortion angle of brush channel mould 211,221,231,241 continues and twists.
Described first segmented die 210, second segmented die 220 ... the locating hole 216,226,236,246 that is no less than one is all arranged in each segmentation of n segmented die 2n0 ... in 2n6 and each segmentation the fixing hole 215,225,235,245 that is no less than 2 is arranged all ... 2n5.
In most preferred embodiment, all have on first segmented die 210, second segmented die 220, the 3rd segmented die 230 and the 4th segmented die 240 in the locating hole 216,226,236,246 that is no less than one and each segmentation the fixing hole 215,225,235,245 that is no less than 2 is all arranged.
As Fig. 4~shown in Figure 12: as described in brush channel mould 211,221,231,241 ... the continue summation of distortion angle of 2n1 equals to brush distortion angle between the groove 11A-E.
In most preferred embodiment, the summation that described brush channel mould 211,221,231,241 continues distortion angle equals to brush 72 ° of distortion angles between the groove 11A-E.
As shown in figure 13: described first segmented die 210, second segmented die 220 ... it is overall 200 that n segmented die 2n0 is assembled into injection mold by alignment pin 206 and fastening bolt 205, and by fastening bolt 205 injection mold overall 200 and mould outside plate 40 are assembled into one.
In most preferred embodiment, then be only to have first segmented die 210, second segmented die 220, the 3rd segmented die 230 and the 4th segmented die 240 to participate in assembling.
Described mould outside plate 40 is assembled together with 50 connections of mould back seat; Have a push rod 100 to pass mould outside plate 40 therebetween, stretch within the injection mold overall 200, described push rod 100 extends to bar head 102 outside the mould back seat 50, and described push rod 100 has slide block 106 on the part within the mould back seat 50.
Die body 80, front mould mold insert 30 are bound up before described, on the preceding die body 80 plastic cement passage 31 are arranged; When front mould mold insert 30 closely contacted with mould outside plate 40, front mould mold insert 30 contacted with the end of push rod 100.
Facts have proved that the present invention makes the injection mold segmentation of dust collector rolling brush axle, and total distortion angle is resolved into some little distortion angles, and total arching trajectory is decomposed into the little track that is approximately straight line.Adopt the wire cutting method or the additive method of prior art like this, just be easy to injection mold manufacturing success segmentation.After the segmentation manufacturing, again each section amalgamation is assembled into the injection mold of total dust collector rolling brush axle, the dust collector rolling brush axle is created with conventional Shooting Technique.With the dust collector rolling brush axle that the injection mold and the manufacturing using method of dust collector rolling brush axle of the present invention are produced, the consistent standard of profile, productivity ratio height, percent defective is low.

Claims (10)

1. the injection mold of a dust collector rolling brush axle is made using method, it is characterized in that described method comprises step:
A. be the isometric injection mold overall (200) of dust collector rolling brush axle (10) design one, then injection mold overall (200) be divided into the design of n section again, total distortion angle that roller brush shaft (10) is gone up brush groove (11) decomposes n section split mould and processes;
B. the n section split mould of completion of processing is made up in order the back and be assembled into injection mold totally (200) by alignment pin (206) and fastening bolt (205);
C. the injection mold after will assembling overall (200) always is fitted together with mould outside plate (40), mould back seat (50), preceding die body (80), push rod (100), front mould mold insert (30), carries out conventional injection moulding then.
2. the injection mold of dust collector rolling brush axle according to claim 1 is made using method, and it is characterized in that: described alignment pin (206) is no less than 2.
3. the injection mold of dust collector rolling brush axle according to claim 1 is made using method, and it is characterized in that: the described method of step b, C comprises following installation step:
A. fastening bolt (205) is also with injection mold overall (200) and mould outside plate (40) fixed connection;
B. described then mould back seat (50) and mould outside plate (40) fixed connection;
C., one push rod (100) is set withstands on the front mould mold insert (30), described push rod (100) passes mould outside plate (40) and also passes mould back seat (50) afterwards again, extends rod head (102);
D. on push rod (100) is positioned at the part of mould back seat (50) slide block (106) is set, this slide block (106) slides between the inner chamber slide wall (51) of mould back seat (50);
E., preceding die body (80) is set again, and described front mould mold insert (30) connects with preceding die body (80), and plastic cement passage (31) is die body (80) introducing in the past also; Mould outside plate (40), mould back seat before described after die body (80) and the combination can relatively move between (50), when current die body (80) closely contacts mould outside plate (40), front mould mold insert (30) stretches into injection mold overall (200), and withstands on the end of push rod (100).
4. the injection mold of dust collector rolling brush axle according to claim 1 is made using method, it is characterized in that: step c is described to carry out conventional injection moulding, may further comprise the steps:
A. thermoplastic cement injects injection mold overall (200) through plastic cement passage (31);
B. cooling water is totally (200) cooling cooling of preceding die body (80) and injection mold by the water channel circulation that water channel joint (310,320,330,340,350,360) is communicated with;
C. then preceding die body (80) is removed sufficiently long distance together with front mould mold insert (30);
D. put on bar head (102) with an external force, push rod (100) rotates dust collector rolling brush axle (10) and ejects from injection mold overall (200);
E. repeat the next operation cycle.
5. the injection mold of a dust collector rolling brush axle, comprise mould outside plate (40), mould back seat (50), preceding die body (80), push rod (100), front mould mold insert (30), it is characterized in that: also comprise injection mold overall (200), described injection mold overall (200) is long-pending measure-alike by the n segment body, the distortion angle of brush channel mould (211,221,231,241......2n1) continue first segmented die (210), second segmented die (220) of distortion ... n segmented die (2n0) is formed.
6. the injection mold of dust collector rolling brush axle according to claim 5 is characterized in that: described first segmented die (210), second segmented die (220) ... all have in each segmentation of n segmented die (2n0) the fixing hole that is no less than 2 is all arranged in the locating hole that is no less than one (216,226,236,246......2n6) and each segmentation (215,225,235,245......2n5).
7. the injection mold of dust collector rolling brush axle according to claim 5 is characterized in that: the summation of described brush channel mould (211,221,231, the 241......2n1) distortion angle that continues equals to brush the distortion angle between groove (11) A-E.
8. the injection mold of dust collector rolling brush axle according to claim 5, it is characterized in that: described first segmented die (210), second segmented die (220) ... n segmented die (2n0) is assembled into injection mold overall (200) by alignment pin (206) and fastening bolt (205), and injection mold overall (200) is assembled into one with mould outside plate (40) by fastening bolt (205).
9. the injection mold of dust collector rolling brush axle according to claim 5 is characterized in that: described mould outside plate (40) is assembled together with mould back seat (50) connection; There is a push rod (100) to pass mould outside plate (40) therebetween, stretch within the injection mold overall (200), described push rod (100) extends to bar head (102) outside the mould back seat (50), described push rod (100) has slide block (106) on the part within the mould back seat (50).
10. the injection mold of dust collector rolling brush axle according to claim 5 is characterized in that: die body (80), front mould mold insert (30) are bound up before described, and plastic cement passage (31) is arranged on the preceding die body (80); Front mould mold insert (30) and mould outside plate (40) are when closely contacting, and front mould mold insert (30) contacts with the end of push rod (100).
CNB2004100278935A 2004-06-29 2004-06-29 Injection mould for roller brush shaft of suction cleaner and manufacturing and using method thereof Expired - Fee Related CN100348399C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2004100278935A CN100348399C (en) 2004-06-29 2004-06-29 Injection mould for roller brush shaft of suction cleaner and manufacturing and using method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2004100278935A CN100348399C (en) 2004-06-29 2004-06-29 Injection mould for roller brush shaft of suction cleaner and manufacturing and using method thereof

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CN1593881A true CN1593881A (en) 2005-03-16
CN100348399C CN100348399C (en) 2007-11-14

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100386049C (en) * 2005-07-11 2008-05-07 杨景国 Production of rotary brushing rod
CN100453021C (en) * 2005-03-17 2009-01-21 杨景国 Rotary brush rod and its prodn. method
CN1986190B (en) * 2006-12-25 2010-05-19 胡志军 Injection mold for rotary brush holder of vacuum cleaner
CN101376167B (en) * 2007-08-31 2011-05-11 李玉明 High-pressure casting mould for pattern block in tire mold
CN107498753A (en) * 2017-09-13 2017-12-22 上海小糸车灯有限公司 Mold insert made from tubulose light guide injection mold mold insert processing method and use this method
CN112353326A (en) * 2020-11-09 2021-02-12 卓益科技(广东)有限公司 Sweeping roller of sweeper and production method thereof
CN113243862A (en) * 2021-05-27 2021-08-13 苏州海生新能源科技有限公司 Rotary brush hair mounting seat for floor sweeping robot and forming die thereof
CN113243863A (en) * 2021-05-27 2021-08-13 苏州海生新能源科技有限公司 Duricrust of rotatory brush hair mount pad for robot of sweeping floor and forming die thereof
WO2022170668A1 (en) * 2021-02-09 2022-08-18 莱克电气股份有限公司 Rolling brush body, rolling brush, dust collection device and forming method for rolling brush body

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06233731A (en) * 1993-02-05 1994-08-23 Osamu Nohara Brush for cleaner, its manufacture and manufacturing device for the same
US5495634A (en) * 1994-06-30 1996-03-05 Bruns Brush Inc. (Ohio Corporation) Vacuum sweeper roller brush
JP2000107093A (en) * 1998-09-30 2000-04-18 Ando Kasei Kk Rotary brush for vacuum cleaner suction head, its manufacture, and device for manufacturing rotor section of rotary brush
CN2401134Y (en) * 2000-01-25 2000-10-18 马占祥 Suction cleaner
JP2002127212A (en) * 2000-10-20 2002-05-08 Yamada Electric Ind Co Ltd Injection molding machine and method for injection molding as well as shaft of rotary brush for cleaner
JP3550112B2 (en) * 2001-08-30 2004-08-04 山田電器工業株式会社 Shaft molding device for rotary brush of vacuum cleaner
JP2003290092A (en) * 2002-03-29 2003-10-14 Toshiba Tec Corp Manufacturing method of rotary cleaning body for vacuum cleaner and vacuum cleaner

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100453021C (en) * 2005-03-17 2009-01-21 杨景国 Rotary brush rod and its prodn. method
CN100386049C (en) * 2005-07-11 2008-05-07 杨景国 Production of rotary brushing rod
CN1986190B (en) * 2006-12-25 2010-05-19 胡志军 Injection mold for rotary brush holder of vacuum cleaner
CN101376167B (en) * 2007-08-31 2011-05-11 李玉明 High-pressure casting mould for pattern block in tire mold
CN107498753A (en) * 2017-09-13 2017-12-22 上海小糸车灯有限公司 Mold insert made from tubulose light guide injection mold mold insert processing method and use this method
CN107498753B (en) * 2017-09-13 2023-08-04 华域视觉科技(上海)有限公司 Processing method of tubular light guide injection mold insert and insert manufactured by adopting same
CN112353326A (en) * 2020-11-09 2021-02-12 卓益科技(广东)有限公司 Sweeping roller of sweeper and production method thereof
WO2022170668A1 (en) * 2021-02-09 2022-08-18 莱克电气股份有限公司 Rolling brush body, rolling brush, dust collection device and forming method for rolling brush body
CN113243862A (en) * 2021-05-27 2021-08-13 苏州海生新能源科技有限公司 Rotary brush hair mounting seat for floor sweeping robot and forming die thereof
CN113243863A (en) * 2021-05-27 2021-08-13 苏州海生新能源科技有限公司 Duricrust of rotatory brush hair mount pad for robot of sweeping floor and forming die thereof

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