CN112410952A - Yarn spinning equipment based on high-pressure air and method thereof - Google Patents
Yarn spinning equipment based on high-pressure air and method thereof Download PDFInfo
- Publication number
- CN112410952A CN112410952A CN202011251094.1A CN202011251094A CN112410952A CN 112410952 A CN112410952 A CN 112410952A CN 202011251094 A CN202011251094 A CN 202011251094A CN 112410952 A CN112410952 A CN 112410952A
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- fixedly connected
- inboard
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H13/00—Other common constructional features, details or accessories
- D01H13/04—Guides for slivers, rovings, or yarns; Smoothing dies
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H11/00—Arrangements for confining or removing dust, fly or the like
- D01H11/005—Arrangements for confining or removing dust, fly or the like with blowing and/or suction devices
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H13/00—Other common constructional features, details or accessories
- D01H13/02—Roller arrangements not otherwise provided for
Abstract
The invention discloses yarn spinning equipment and a method based on high-pressure air, relates to the technical field of air flow yarn spinning, and particularly relates to yarn spinning equipment and a method based on the high-pressure air. This yarn weaving equipment based on highly-compressed air, through set up the circular notch of symmetric distribution in the inboard marginal position of base, and fixed connection support in the circular notch of base inboard to at the spacing protection axle of the inside swing joint symmetric distribution of support, set up evenly distributed's annular metal gasket in the outside of spacing protection axle simultaneously, utilize annular metal gasket to have a limit movement with the yarn, can guarantee the device and carrying out the in-process that the yarn was fed, the yarn must a smooth or fracture partially can not appear.
Description
Technical Field
The invention relates to the technical field of air flow yarn spinning, in particular to yarn spinning equipment and a method based on high-pressure air.
Background
The common yarn is processed by special equipment or special technology to form fancy yarn with the appearance and the structure different from the common yarn, the fancy yarn generally comprises core yarn and decorative yarn, some fancy yarn needs to be added with fixed yarn, the fancy yarn can be twisted by twice plying, the output speed of the decorative yarn is larger than that of the core yarn during primary plying to form overfeeding continuous or intermittent wrapping around the core yarn, finally plying is carried out, the primarily plied yarn and a reinforcing yarn are plied again, and twisting is carried out by the twist degrees in the opposite directions of opposite twisting to each other to form a fancy style with stable structure, so the fancy yarn weaving equipment based on high-pressure air is needed for the fancy yarn.
Yarn weaving equipment on the market is all comparatively ripe at present, but this type of equipment is handling the in-process of advancing the yarn, yarn strand feeding fracture or yarn strand can take place relative partially smooth at the in-process of feeding often can appear in current equipment, and then lead to equipment to receive the yarn jam, current equipment all can produce more end of a thread or broken string, disconnected wadding in the in-process of handling yarn strand in addition, these broken strings, disconnected wadding can lead to the finished product to appear the discrepancy, current equipment is in long-time use simultaneously, the inside leather roller of equipment can receive serious wearing and tearing, and the installation and the dismantlement of current leather roller are comparatively complicated, therefore we have proposed a yarn weaving equipment based on highly-compressed air.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides yarn spinning equipment based on high-pressure air and a method thereof, which solve the problems in the background technology.
In order to achieve the purpose, the invention is realized by the following technical scheme: a yarn spinning device based on high-pressure air and a method thereof comprise a base, wherein symmetrically distributed lifting rods are fixedly connected inside the base, the top end of each lifting rod is fixedly connected with a top shell, the outer side of each top shell is fixedly connected with a machine box, the edge position of the inner side of the base is fixedly connected with a support, the inner part of each support is movably connected with symmetrically distributed limiting protection shafts, the top part of the inner side of the base is fixedly connected with uniformly distributed fixing clamping plates, the inner part of each fixing clamping plate is movably connected with symmetrically distributed shaft rods, one end of the outer part of each shaft rod is fixedly connected with a sleeve, the inner side of each sleeve is movably connected with a toothed bar, the outer side of each shaft rod is movably connected with a leather roller, the other end of the outer part of each shaft rod is movably connected with a positioning clamping piece, the outer side of each positioning clamping piece, the inboard middle part swing joint of base has the second rubber roller subassembly of relative distribution, the central point at the inboard top of base puts fixedly connected with metal ring spindle, one side fixedly connected with revolving cup at the inboard top of base, the inboard top surface fixedly connected with symmetric distribution's of base deflector roll.
Optionally, the cylindrical slotted holes that the symmetry distributes are seted up to the both sides at base top, the top of lifter passes and extends to the top surface of base, the top fixed connection of lifter is in the both sides of top shell bottom, the whole of top shell is removed and is shown L shape.
Optionally, rectangular slotted hole has been seted up in the outside of epitheca, the rectangular slot in the epitheca outside and the mutual adaptation of the outside of quick-witted case, rectangular groove has been seted up to the inside of machine case, and the rectangular groove fixedly connected with air exhauster of quick-witted incasement portion, the bottom fixedly connected with thickening filter screen of machine case.
Optionally, the support comprises metal horizontal pole and rectangle cardboard, the inside that the one end of the inside metal horizontal pole of support passed and extended to the base, the circular notch of symmetric distribution is seted up to the inboard border position of base, and the mutual adaptation of the circular notch of the inside metal horizontal pole of support and the inboard border position of base, the circular shrinkage pool of symmetric distribution is seted up to the inboard of the outside rectangle cardboard of support, and the both ends of spacing protection axle pass and extend to the inside of rectangle cardboard.
Optionally, the outer end of the shaft rod is provided with a T-shaped fixture block protrusion, one end of the inner cavity of the sleeve is provided with an i-shaped groove, the T-shaped fixture block protrusion at the outer end of the shaft rod corresponds to the i-shaped groove at one end of the inner cavity of the sleeve, two sides of the outer portion of the sleeve are in threaded connection with symmetrically distributed fixing nuts, and the gear rod is fixedly connected with the outer portion of the gear rod.
Optionally, the outside of axostylus axostyle is seted up the ring shape fixture block of symmetric distribution, the rectangle notch has been seted up to the outside both sides of axostylus axostyle, and the cylindrical slotted hole has been seted up to the inboard of the outside other end of axostylus axostyle, the cylindricality pole has been seted up to the inboard of fixed bolt, and the outside both sides of cylindricality pole have been seted up and have been pressed the fixture block, the inboard cylindricality pole of fixed bolt and press the fixture block and the outside rectangle groove of the.
Optionally, the outside of location fastener is seted up the hole of symmetric distribution, and the hole in the location fastener outside is the cross and distributes, the inboard marginal position fixedly connected with symmetric distribution's of fixing pin metal pole, and the mutual adaptation of the metal pole in the inboard marginal position of fixing pin and the hole in the location fastener outside.
Optionally, power component is the vertical state and fixes the top at the base inboard, power component's outside fixedly connected with a set of gear, and the outside swing joint of the outside gear of power component has the track, the outside fixed connection symmetric distribution's of base drive machine case, and the outside two drive machine cases of base respectively with power component and deflector roll interconnect.
The invention provides yarn spinning equipment based on high-pressure air and a method thereof, and the yarn spinning equipment has the following beneficial effects:
1. this yarn weaving equipment based on highly-compressed air, through the circular notch of seting up the symmetric distribution in the inboard marginal position of base, and fixed connection support in the circular notch of base inboard, and the spacing protection axle of the inside swing joint symmetric distribution at the support, set up evenly distributed's annular metal gasket in the outside of spacing protection axle simultaneously, utilize annular metal gasket with the spacing removal of yarn beard strip, can guarantee the device and carrying out the in-process that the yarn was fed, the yarn beard strip can not appear and slide or split partially, and then solved current equipment and can cause the yarn beard strip to slide the jam device partially at the in-process of feeding the yarn.
2. This yarn weaving equipment based on highly-compressed air, through the lifter of the inside fixed connection symmetric distribution at the base, and at the top fixed connection top shell of lifter, and set up the rectangle slotted hole in the outside of top shell, fixed connection machine case in the rectangular groove hole in the top shell outside simultaneously, utilize quick-witted incasement portion fixed connection air exhauster to convulsions outward, can guarantee that waste yarn such as the yarn end of a thread at the device base top can be effectively absorbed, and then avoided waste yarn such as yarn end of a thread to influence the normal operating of equipment.
3. This yarn weaving equipment based on highly-compressed air, through the axostylus axostyle at the inside swing joint symmetric distribution of fixed cardboard, and at the outer end fixed connection sleeve of axostylus axostyle to at telescopic inboard fixed connection ratch, simultaneously at the outside swing joint location fastener of axostylus axostyle, utilize fixing bolt to the fixed adaptation of location fastener, can guarantee that fixing bolt can realize the purpose of quick fixed leather roller, and then solved the problem that current equipment leather roller is difficult to dismantle and install.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic side-view, bottom-view, of the present invention;
FIG. 3 is a schematic view of the structure of the present invention with partial dispersion;
FIG. 4 is a partial schematic view of the present invention;
FIG. 5 is a schematic view of the internal structure of the present invention;
FIG. 6 is a schematic diagram of the internal dispersion structure of the present invention.
In the figure: 1. a base; 2. a lifting rod; 3. a top shell; 4. a chassis; 5. a support; 6. limiting a protective shaft; 7. fixing the clamping plate; 8. a shaft lever; 9. a sleeve; 10. a rack bar; 11. a leather roller; 12. positioning the clamping piece; 13. fixing the bolt; 14. a power assembly; 15. a second skin roller assembly; 16. a metal ring ingot; 17. rotating the cup; 18. and a guide roller.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1 to 5, the present invention provides a technical solution: a yarn spinning device based on high-pressure air and a method thereof comprise a base 1, wherein lifting rods 2 which are symmetrically distributed are fixedly connected inside the base 1, a top shell 3 is fixedly connected to the top end of each lifting rod 2, symmetrically distributed cylindrical slotted holes are formed in two sides of the top of the base 1, the top end of each lifting rod 2 penetrates through and extends to the top surface of the base 1, the top end of each lifting rod 2 is fixedly connected to two sides of the bottom of the top shell 3, the top shell 3 is integrally withdrawn in an L shape, the symmetrically distributed lifting rods 2 are fixedly connected to two sides inside the base 1, the top end of each lifting rod 2 penetrates through and extends to the top of the base 1, and meanwhile, the top end of each lifting rod 2 is fixedly connected to the bottom of the top shell 3, so that the top shell 3 of the device can ensure that parts inside the device cannot accidentally injure workers, and meanwhile, yarn breakage and flocculation outside the device are avoided, the outer side of the top shell 3 is fixedly connected with a case 4, the outer side of the top shell 3 is provided with a rectangular slotted hole, the rectangular slotted hole on the outer side of the top shell 3 is matched with the outer part of the case 4, the inner part of the case 4 is provided with a rectangular groove, the rectangular groove on the inner part of the case 4 is fixedly connected with an exhaust fan, the bottom of the case 4 is fixedly connected with a thickening filter screen, the case 4 is fixedly connected with the bottom of the case 4 and the thickening filter screen, the exhaust fan is fixedly connected with the inner part of the top shell 3, the base 1 is integrally closed by the top shell 3, and the broken yarn can be effectively absorbed under the action of outward air suction of the case 4, meanwhile, the problem that the broken yarn is dispersed in the air and causes difficulty in breathing of workers is solved, the edge position on the inner side of the base 1 is fixedly connected with a bracket 5, the inner part of the bracket 5 is movably connected with a limiting protection shaft 6 which is symmetrically, the support 5 is composed of a metal cross rod and a rectangular clamping plate, one end of the metal cross rod inside the support 5 penetrates through and extends to the inside of the base 1, the edge position of the inner side of the base 1 is provided with symmetrically distributed circular notches, the metal cross rod inside the support 5 is matched with the circular notch at the edge position of the inner side of the base 1, the inner side of the rectangular clamping plate outside the support 5 is provided with symmetrically distributed circular concave holes, two ends of a limiting protection shaft 6 penetrate through and extend to the inside of the rectangular clamping plate, the support 5 is fixedly connected at the edge position of the inner side of the base 1, the inner side of the rectangular clamping plate outside the support 5 is provided with symmetrically distributed circular concave holes, the symmetrically distributed limiting protection shafts 6 are movably connected in the circular concave holes inside the rectangular clamping plate, and symmetrically distributed circular bulges are arranged outside, the yarn beard strips are effectively limited by utilizing notches between the annular bulges at the outer part of the limiting protection shaft 6, the yarn beard strips can be ensured to be kept in a stable state in the feeding process, the top part of the inner side of the base 1 is fixedly connected with the fixed clamping plates 7 which are uniformly distributed, the inner part of the fixed clamping plates 7 is movably connected with the shaft levers 8 which are symmetrically distributed, the outer parts of the shaft levers 8 are provided with annular clamping blocks which are symmetrically distributed, the two sides of the outer parts of the shaft levers 8 are provided with rectangular notches, the inner sides of the outer ends of the shaft levers 8 are provided with cylindrical slotted holes, the inner sides of the fixed bolts 13 are provided with cylindrical rods, the two sides of the outer parts of the cylindrical rods are provided with pressing clamping blocks, the cylindrical rods at the inner sides of the fixed bolts 13 are respectively matched with the rectangular notches at the outer parts of the outer ends of, the top end of the spring is fixedly connected with a pressing fixture block, meanwhile, the outer side of the other end of the shaft lever 8 is provided with symmetrically distributed rectangular notches, and the pressing fixture block is matched with the rectangular notches outside the shaft lever 8, so that the device can be ensured to be quickly installed and disassembled with the positioning fixture 12, the leather roller 11 is ensured to be conveniently and quickly replaced, the working efficiency of workers is greatly improved, one end outside the shaft lever 8 is fixedly connected with a sleeve 9, the inner side of the sleeve 9 is movably connected with a toothed bar 10, the outer end of the shaft lever 8 is provided with a T-shaped fixture block bulge, one end of the inner cavity of the sleeve 9 is provided with an I-shaped groove, the T-shaped fixture block bulge outside the shaft lever 8 corresponds to the I-shaped groove at one end of the inner cavity of the sleeve 9, two sides outside the sleeve 9 are in threaded connection with symmetrically distributed fixing nuts, the outer part of, an I-shaped groove is formed in one end of an inner cavity of the sleeve 9, fixing nuts which are symmetrically distributed are in threaded connection with two sides of the outer portion of the sleeve 9, a gear and two gears are fixedly connected with the outer portions of the toothed bars 10 at different positions, the device is convenient for operators to overhaul and maintain quickly, a leather roller 11 is movably connected to the outer side of the shaft rod 8, a positioning clamping piece 12 is movably connected to the other end of the outer portion of the shaft rod 8, a fixing bolt 13 is movably connected to the outer side of the positioning clamping piece 12, symmetrically distributed holes are formed in the outer side of the positioning clamping piece 12 and are distributed in a cross shape, symmetrically distributed metal rods are fixedly connected to the edge position of the inner side of the fixing bolt 13, the metal rods at the edge position of the inner side of the fixing bolt 13 are matched with the holes in the outer side of the positioning clamping piece 12, and symmetrically distributed power, the device can ensure that the device can have enough stable power transmission in the operation process by fixedly connecting the power components 14 which are symmetrically distributed at the top of the inner side of the base 1, fixedly connecting two gears at the outer sides of the toothed bars 10 in the power components 14 and movably connecting the crawler belts at the outer sides of the gears at the left side of the power components 14, wherein the middle part of the inner side of the base 1 is movably connected with the second leather roller components 15 which are oppositely distributed, the central position of the inner side top of the base 1 is fixedly connected with a metal ring ingot 16, one side of the inner side top of the base 1 is fixedly connected with a rotating cup 17, the top surface of the inner side of the base 1 is fixedly connected with symmetrically distributed guide rollers 18, the power components 14 are vertically fixed at the top of the inner side of the base 1, the outer parts of the power components 14 are fixedly connected with a group of gears, the outer sides of the gears at the outer sides, and two driving machine cases outside the base 1 are respectively connected with the power assembly 14 and the guide rollers 18, the guide rollers 18 which are symmetrically distributed are fixedly connected to the top surface of the inner side of the base 1, the inner parts of the guide rollers 18 are movably connected with the leather roller shaft rods and the limiting shaft rods which are symmetrically distributed, the processed yarns are limited by the leather roller shaft rods and the limiting shaft rods, and the yarns conveyed out can not be wound on equipment.
To sum up, when the high-pressure air-based yarn spinning device is used, an operator needs to wind yarn strands outside the limiting protection shaft 6, guide the yarn strands to the inner sides of the leather roller 11, the power assembly 14 and the second leather roller assembly 15, then pass the yarn strands through the metal ring spindle 16 and emboss the yarn strands, then guide the yarn strands into the rotor 17, drive the yarn strands to be twisted by the rotor 17 rotating at a rotating speed and air flow, then guide the guided yarn to the inner side of the guide roller 18, limit and guide the guide roller 18, further control normal traction of the yarn, and meanwhile, the operator needs to press the top shell 3 downwards in the operation process, and then start and operate the machine box 4, so that the high-pressure air-based yarn spinning device is obtained.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. A yarn weaving device based on high-pressure air and a method thereof comprise a base (1), and are characterized in that: the inner part of the base (1) is fixedly connected with symmetrically distributed lifting rods (2), the top ends of the lifting rods (2) are fixedly connected with a top shell (3), the outer side of the top shell (3) is fixedly connected with a case (4), the edge position of the inner side of the base (1) is fixedly connected with a support (5), the inner part of the support (5) is movably connected with symmetrically distributed limiting protection shafts (6), the top part of the inner side of the base (1) is fixedly connected with uniformly distributed fixing clamping plates (7), the inner part of the fixing clamping plates (7) is movably connected with symmetrically distributed shaft rods (8), one end of the outer part of each shaft rod (8) is fixedly connected with a sleeve (9), the inner side of each sleeve (9) is movably connected with a toothed bar (10), the outer side of each shaft rod (8) is movably connected with a leather roller (11), and the other end of the outer part of each shaft rod, the outside swing joint of location fastener (12) has fixing bolt (13), the inboard swing joint of base (1) has power component (14) of symmetric distribution, the inboard middle part swing joint of base (1) has second skin roller subassembly (15) of relative distribution, the central point at the inboard top of base (1) puts fixedly connected with metal ring spindle (16), one side fixedly connected with revolving cup (17) at the inboard top of base (1), the inboard top surface fixedly connected with guide roller (18) of symmetric distribution of base (1).
2. A high-pressure air based yarn weaving apparatus according to claim 1, characterized in that: the cylindrical slotted hole of symmetric distribution is seted up to the both sides at base (1) top, the top of lifter (2) passes and extends to the top surface of base (1), the top fixed connection of lifter (2) is in the both sides of top shell (3) bottom, the whole of top shell (3) is removed and is appeared the L shape.
3. A high-pressure air based yarn weaving apparatus according to claim 1, characterized in that: rectangular slotted hole has been seted up in the outside of epitheca (3), the rectangular slotted hole in the epitheca (3) outside and the mutual adaptation in outside of quick-witted case (4), rectangular groove has been seted up to the inside of quick-witted case (4), and the inside rectangular groove fixedly connected with air exhauster of quick-witted case (4), the bottom fixedly connected with thickening filter screen of quick-witted case (4).
4. A high-pressure air based yarn weaving apparatus according to claim 1, characterized in that: support (5) comprise metal horizontal pole and rectangle cardboard, the inside that the one end of the inside metal horizontal pole of support (5) passed and extended to base (1), the circular notch of symmetric distribution is seted up to the edge position of base (1) inboard, and the mutual adaptation of circular notch of the inside metal horizontal pole of support (5) and the edge position in base (1), the circular shrinkage pool of symmetric distribution is seted up to the inboard of the outside rectangle cardboard of support (5), and the inside that passes and extend to the rectangle cardboard at the both ends of spacing protection axle (6).
5. A high-pressure air based yarn weaving apparatus according to claim 1, characterized in that: the outer end of the shaft rod (8) is provided with a T-shaped fixture block protrusion, one end of the inner cavity of the sleeve (9) is provided with an I-shaped groove, the T-shaped fixture block protrusion at the outer end of the shaft rod (8) corresponds to the I-shaped groove at one end of the inner cavity of the sleeve (9), two sides of the outer portion of the sleeve (9) are in threaded connection with fixing nuts which are symmetrically distributed, and the outer portion of the toothed bar (10) is fixedly connected with a gear.
6. A high-pressure air based yarn weaving apparatus according to claim 1, characterized in that: the utility model discloses a press fixture block, including axostylus axostyle (8), the outside of axostylus axostyle (8) is seted up the ring shape fixture block of symmetric distribution, the rectangle notch has been seted up to the outside both sides of axostylus axostyle (8), and the inboard of the outside other end of axostylus axostyle (8) has seted up the cylindrical slotted hole, the cylindricality pole has been seted up to the inboard of fixed bolt (13), and the outside both sides of cylindricality pole have seted up and have pressed the fixture block, the inboard cylindricality pole of fixed bolt (13).
7. A high-pressure air based yarn weaving apparatus according to claim 1, characterized in that: the hole of symmetric distribution is seted up in the outside of location fastener (12), and the hole in the location fastener (12) outside is the cross distribution, the metal pole of fixed bolt (13) inboard edge position fixedly connected with symmetric distribution, and the metal pole of the inboard edge position of fixed bolt (13) and the hole in the location fastener (12) outside are each other adapted.
8. A high-pressure air based yarn weaving apparatus according to claim 1, characterized in that: power component (14) are vertical state and fix the top at base (1) inboard, the outside fixedly connected with a set of gear of power component (14), and the outside swing joint of the outside gear of power component (14) has the track, the outside fixed connection symmetric distribution's of base (1) drive machine case, and base (1) outside two drive machine cases respectively with power component (14) and deflector roll (18) interconnect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011251094.1A CN112410952A (en) | 2020-11-11 | 2020-11-11 | Yarn spinning equipment based on high-pressure air and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011251094.1A CN112410952A (en) | 2020-11-11 | 2020-11-11 | Yarn spinning equipment based on high-pressure air and method thereof |
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| CN112410952A true CN112410952A (en) | 2021-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011251094.1A Pending CN112410952A (en) | 2020-11-11 | 2020-11-11 | Yarn spinning equipment based on high-pressure air and method thereof |
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| CN111532896A (en) * | 2020-05-09 | 2020-08-14 | 苏州基列德智能制造有限公司 | Automatic hank reeling machine |
| CN111676557A (en) * | 2020-06-22 | 2020-09-18 | 周志毅 | Weaving skew and weaving of skew warning are with loading attachment |
| CN111850751A (en) * | 2019-04-26 | 2020-10-30 | 卓郎智能技术有限公司 | Bearing mechanism for apron drafting device |
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| CN1807720A (en) * | 2005-01-20 | 2006-07-26 | 村田机械株式会社 | Draft device in pneumatic spinning device |
| CN104928813A (en) * | 2014-03-19 | 2015-09-23 | 村田机械株式会社 | Belt guide roller, cleaning device, draft device, and spinning machine |
| CN206376105U (en) * | 2017-01-13 | 2017-08-04 | 珠海辉帛复合材料有限公司 | A kind of limit-type weaving yarn device |
| US20190257007A1 (en) * | 2018-02-21 | 2019-08-22 | Maschinenfabrik Rieter Ag | Method for operating a spinning machine of a rotor spinning machine, and spinning machine of a rotor spinning machine |
| CN108788953A (en) * | 2018-06-04 | 2018-11-13 | 含山县兴达球墨铸铁厂 | A kind of ductile iron pipe finishing grinding device |
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Application publication date: 20210226 |
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