CN217298158U - Heald frame support convenient to drafting - Google Patents
Heald frame support convenient to drafting Download PDFInfo
- Publication number
- CN217298158U CN217298158U CN202221058482.2U CN202221058482U CN217298158U CN 217298158 U CN217298158 U CN 217298158U CN 202221058482 U CN202221058482 U CN 202221058482U CN 217298158 U CN217298158 U CN 217298158U
- Authority
- CN
- China
- Prior art keywords
- rod
- warp
- clamping
- bracing piece
- heald frame
- 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
Links
Images
Landscapes
- Looms (AREA)
Abstract
The application relates to the field of weaving equipment, discloses a heald frame support convenient to drafting, and it includes the base and is used for carrying out taut thread tension mechanism to the warp, thread tension mechanism connects on the base, works as when thread tension mechanism is taut with the warp, the warp can follow the roll-off on the thread tension mechanism. This application has and reduces when drafting the warp, because of touching other warps and cause other warp winding's possibility, improves the effect that the staff drafted the convenience.
Description
Technical Field
The application relates to the field of textile equipment, in particular to a heald frame support convenient to drafting.
Background
The heald frame is an important component in the rapier loom, when the rapier loom is used, firstly, the warp yarns on the warp beam are required to be penetrated on the heald frame, then the heald frame is arranged on the rapier loom, and the heald frame is driven by the rapier loom heald lifting mechanism to move up and down according to a set program, so that the warp yarns are opened in a layered manner, and weft yarns are shuttled in the warp yarns to be interwoven into fabrics with different patterns.
At present, when the heald frame on the rapier loom is penetrated by warps, the support frame is arranged on the ground mostly, a warp beam with the warps is placed on one side of the support frame by a worker, the warps on the warp beam naturally droop by bypassing a crossbeam on the support frame, the heald frame is placed on the other side of the support frame, and then the worker hooks the warps through the hook-shaped rod to be penetrated on the heald frame.
To the correlation technique among the above-mentioned, the inventor thinks that take the warp on the warp beam on the support frame and droop naturally, when the staff touched the warp on the support frame, because the warp is thinner, can lead to the fact the condition that many warps twine each other unavoidably to influence the staff and wear to establish to the warp, then there is the staff when wearing to establish the warp, wears to establish inconvenient defect.
SUMMERY OF THE UTILITY MODEL
In order to alleviate when wearing to establish the warp on the heald frame, the warp is easy intertwine, leads to wearing to establish comparatively inconvenient problem, this application provides a heald frame support convenient to drafting.
The application provides a heald frame support convenient to draft adopts following technical scheme:
the utility model provides a heald frame support convenient to drafting, includes the base and is used for carrying out taut thread tension mechanism to the warp, thread tension mechanism connects on the base, works as thread tension mechanism is when tensioning the warp, and the warp can follow thread tension mechanism roll-off.
Through adopting above-mentioned technical scheme, set up thread clamping mechanism on the base, wear to establish the heald frame with the epaxial warp of warp when needs on, at first will utilize thread clamping mechanism to be taut with the epaxial warp centre gripping of warp, then staff's rethread colludes the form pole and colludes the warp, make the warp deviate from thread clamping mechanism under the drive of hook-like pole, then wear to establish in the heald frame of one side, through utilizing thread clamping mechanism to take-up the epaxial warp sand of warp, reduce when drafting the warp, cause the winding possibility of warp because of touching other warps, thereby reduce the influence of drafting to the staff, improve the convenience that the staff drafted.
Preferably, the thread clamping mechanism comprises a fixing rod and a clamping rod, the base is far away from a supporting rod which is fixedly connected to one side of the ground in a perpendicular mode, the fixing rod is fixedly connected to the supporting rod, the clamping rod is parallel to the fixing rod, the clamping rod is detachably connected with the fixing rod, the clamping rod is used for clamping warp yarns, when the fixing rod clamps the warp yarns, the warp yarns are in a tensioning state, and the warp yarns are slidably connected between the fixing rod and the clamping rod.
Through adopting above-mentioned technical scheme, fixed connection dead lever on the bracing piece at first sets up the warp in one side of dead lever, then removes the supporting rod, makes dead lever and clamping bar with the warp centre gripping to make the warp taut, after the drafting is accomplished, lift the supporting rod off from one side of dead lever, then place one side of dead lever with next set of warp and carry out the centre gripping, through can dismantling the connection on the dead lever with the supporting rod, improve the convenience to every group warp centre gripping.
Preferably, the fixing rod is provided with a locking assembly, the locking assembly comprises a screw rod and a nut, the screw rod is fixedly connected to the fixing rod, the nut is in threaded connection to the screw rod, and a clamping groove clamped with the screw rod is formed in the clamping rod.
By adopting the technical scheme, the screw rod is fixedly connected to the fixed rod, when warp yarns are clamped, the clamping groove in the clamping rod is clamped on the screw rod, the clamping rod is located between the fixed rod and the nut, then the nut is screwed, the nut is abutted against the clamping rod, and the clamping of the clamping rod and the fixed rod on the warp yarns is further realized; through rotating the nut, make the centre gripping dynamics between supporting rod and the dead lever can be adjusted, improve the convenience that the dynamics was adjusted between supporting rod and the dead lever to thereby break away from in the warp thread tension mechanism of being convenient for.
Preferably, the screw rod with the nut all is provided with a plurality ofly, and is a plurality of the screw rod sets up with a plurality of the nut one-to-one, and is a plurality of the screw rod sets up along the length direction interval of fixed pole, the joint groove is provided with a plurality ofly, and is a plurality of the joint groove sets up with many the screw rod one-to-one.
Through adopting above-mentioned technical scheme, all set up screw rod and nut into a plurality ofly, through with a plurality of joint groove cards on the supporting rod joint respectively on a plurality of screw rods, screw up a plurality of nuts then and carry out the centre gripping to the warp, improve the stability of warp centre gripping.
Preferably, a fluff layer is arranged on one side of the fixed rod close to the screw rod.
By adopting the technical scheme, the fluff layer is arranged on one side of the fixed rod, the friction force between the warp and the thread clamping mechanism is increased by utilizing the fluff layer, the controllability of the clamping force between the clamping rod and the fixed rod is improved, and the clamping force between the clamping rod and the fixed rod can be conveniently adjusted.
Preferably, be provided with the bearing mechanism that is used for hanging the heald frame on the bracing piece, bearing mechanism includes bearing rod and couple, bearing rod with the bracing piece is connected, bearing rod is on a parallel with the dead lever, couple fixed connection be in on the bearing rod.
Through adopting above-mentioned technical scheme, set up the bearing rod on the bracing piece, utilize fixed connection's couple on the bearing rod to hang the heald frame in the frame to with certain height of heald frame lifting, make the staff to the heald frame at suitable height and plan, improve the convenience of staff when plan.
Preferably, be provided with the drive on the bracing piece the drive assembly that bearing rod goes up and down, drive assembly includes that driving motor, dwang and winding have the winding roll of stay cord, the dwang rotates to be connected on the bracing piece, the coaxial cover of winding roll is established on the dwang, the winding roll with dwang fixed connection, bearing rod sliding connection is in on the bracing piece, stay cord on the winding roll with bearing rod fixed connection, driving motor fixed connection is in on the bracing piece, driving motor with the dwang transmission is connected.
By adopting the technical scheme, the supporting rod is fixedly connected with the driving motor, the main shaft of the driving motor rotates to drive the rotating rod in transmission connection with the driving motor to rotate, the rotating rod rotates to drive the wire winding roller to rotate, and the wire winding roller rotates to drive the pull rope on the wire winding roller to be wound and unwound, so that the height of the supporting rod is adjusted; the height of the heald frame can be adjusted by workers according to the requirements of the workers by driving the adjustment of the lifting height of the heald frame through the adjustment of the height of the supporting rod, and the use flexibility of the frame is improved.
Preferably, a steering rod for steering the warp yarns is fixedly connected to the supporting rod, the steering rod is located at a position close to one end, far away from the base, of the supporting rod, and the steering rod is parallel to the fixing rod.
Through adopting above-mentioned technical scheme, set up the steering column on the bracing piece, when needs wear to establish the heald frame with the warp on, at first with the epaxial warp of warp pull-up, walk around the steering column, utilize the steering column to change the direction of warp, then it is taut with the warp centre gripping through thread clamping mechanism again, make the warp take-up downwards, utilize the steering column to make the take-up direction of warp change, thereby make the warp with hang the relative setting of the heald frame in the frame, improve and wear to establish the convenience on the heald frame with the warp.
Preferably, reinforcing rods are arranged on two sides of the supporting rod, one end of each reinforcing rod is fixedly connected with the supporting rod, and the other end of each reinforcing rod is fixedly connected with the base.
Through adopting above-mentioned technical scheme, all be provided with the stiffener in the both sides of bracing piece, utilize the stiffener to support the bracing piece stably, improve the stability of bracing piece.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the warp yarn clamping mechanism is arranged on the base, and is used for clamping and tensioning the warp yarns on the warp beam, so that the possibility of winding other warp yarns due to the fact that other warp yarns are touched when the warp yarns are subjected to drafting is reduced, the influence on the drafting of workers is reduced, and the drafting convenience of the workers is improved;
2. the plurality of screw rods are fixedly connected to the fixing rod, when warp yarns are clamped, the nut is screwed to be tightly abutted against the clamping rod, so that the warp yarns are clamped by the clamping rod and the fixing rod, the clamping force between the clamping rod and the fixing rod can be adjusted by rotating the nut, the convenience of adjusting the force between the clamping rod and the fixing rod is improved, and the warp yarns can be conveniently separated from the yarn clamping mechanism;
3. through setting up bearing mechanism on the bracing piece, utilize bearing mechanism to hang the heald frame to with the certain height of heald frame lifting, make the staff to the heald frame at suitable height and plan, improve the convenience of staff when drafting.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a wire clamping mechanism in an embodiment of the present application;
FIG. 3 is a schematic view of the construction of the racking mechanism of the embodiment of the present application;
fig. 4 is an enlarged view of a portion a in fig. 3 of the present application.
Reference numerals: 100. a base; 110. a support bar; 200. a wire clamping mechanism; 210. a fixing rod; 220. a clamping rod; 230. a locking assembly; 231. a screw; 232. a nut; 233. a clamping groove; 240. a fluff layer; 300. a supporting mechanism; 310. a support rod; 320. hooking; 330. a drive assembly; 331. a drive motor; 332. rotating the rod; 333. a winding roll; 334. a sliding groove; 335. a sliding block; 400. a steering lever; 500. a reinforcing rod.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses heald frame support convenient to drafting.
Referring to fig. 1, a heald frame support convenient for drafting includes a base 100, the horizontal section of the base 100 is rectangular, a thread clamping mechanism 200 is installed on the base 100, the thread clamping mechanism 200 is used for clamping and tensioning warp threads on a warp beam, and the warp threads can be pulled out from the thread clamping mechanism 200. Through utilizing thread clamping mechanism 200 taut the warp, reduce and wear to establish the in-process to the heald frame with the warp, because of touching other warps and cause other warp winding's possibility to reduce the influence of drafting to the staff, improve the convenience that the staff drafted. A support mechanism 300 is installed on the base 100, and the support mechanism 300 is used for supporting the heald frame, so that the heald frame and the tensioned warp are arranged oppositely. Utilize supporting mechanism 300 to carry out the bearing to the heald frame to with the certain height of heald frame lifting, make the staff to harness the heald frame at suitable height, improve the convenience that the staff was drafted.
Referring to fig. 2 and 3, two vertically disposed support rods 110 are fixedly connected to the base 100, and the two support rods 110 are respectively located at positions close to two ends of the base 100 in the length direction. The wire clamping mechanism 200 comprises a fixing rod 210 vertically and fixedly connected between two support rods 110, the fixing rod 210 is located at a position close to the lower ends of the support rods 110, a clamping rod 220 is installed at one side of the fixing rod 210, a locking assembly 230 is installed on the fixing rod 210, and the clamping rod 220 is locked on the fixing rod 210 by the locking assembly 230.
The locking assembly 230 includes a plurality of screws 231 vertically and fixedly connected to the fixing rod 210, the plurality of screws 231 are all located at one side of the fixing rod 210 close to the clamping rod 220, the plurality of screws 231 are equally spaced along the length direction of the fixing rod 210, and each screw 231 is threadedly connected with a nut 232. The clamping rod 220 is provided with a plurality of clamping grooves 233, the clamping grooves 233 are arranged in one-to-one correspondence with the screws 231, and the clamping grooves 233 are used for clamping the corresponding screws 231. When the warp needs to be clamped, the clamping rods 220 are firstly clamped on the plurality of screw rods 231, so that the clamping rods 220 are positioned between the fixing rods 210 and the nuts 232 on the screw rods 231, then the nuts 232 are rotated, so that the nuts 232 are tightly abutted against the clamping rods 220, and the clamping of the warp by the clamping rods 220 and the fixing rods 210 is realized; through rotating nut 232, make the centre gripping dynamics between holding rod 220 and the dead lever 210 can be adjusted, improve the convenience that the centre gripping dynamics was adjusted between holding rod 220 and the dead lever 210 to thereby break away from in the warp is convenient for thread tension mechanism 200.
Referring to fig. 1 and 2, a fixing lever 210 is provided with a nap layer 240 at a side thereof adjacent to the screw 231. The friction force between the warp yarns and the thread clamping mechanism 200 is increased through the arranged fluff layer 240, so that the controllability of the clamping force between the clamping rod 220 and the fixing rod 210 is improved, and the clamping force between the clamping rod 220 and the fixing rod 210 can be conveniently adjusted.
Referring to fig. 1 and 3, the supporting mechanism 300 includes a driving assembly 330, the driving assembly 330 is installed on two supporting rods 110, a supporting rod 310 is connected between the two supporting rods 110 in a sliding manner, the supporting rod 310 is parallel to the fixing rod 210, a cross section of the supporting rod 310 perpendicular to a length direction thereof is rectangular, and the driving assembly 330 drives the supporting roller to slide up and down. Two hooks 320 are fixedly connected to the support rod 310, and the two hooks 320 are bent towards the direction far away from the ground. During the drafting, the heald frame is hung on the hook 320 on the supporting rod 310, so that the heald frame keeps a certain height with the ground, and the warp yarns can be conveniently threaded on the heald frame by workers. Utilize drive assembly 330 drive bearing rod 310 to go up and down, make the staff can adjust the height of heald frame according to the demand of self, improve the flexibility that the frame used.
Referring to fig. 3 and 4, the two support rods 110 are close to each other and have a sliding groove 334 formed in one side, the two sliding grooves 334 are formed in the vertical direction, the two ends of the support rod 310 are fixedly connected with sliding blocks 335 matched with the sliding grooves 334, and the two sliding blocks 335 are respectively slidably connected in the two sliding grooves 334. The sliding groove 334 is used for guiding the movement of the support rod 310, and the stability of the support rod 310 in the lifting process is improved.
Referring to fig. 1 and 3, the driving assembly 330 includes a driving motor 331 fixedly connected to one of the supporting rods 110, the rotation axis of the main shaft of the driving motor 331 is parallel to the length direction of the supporting rod 310, a rotation rod 332 is rotatably connected between the two supporting rods 110, the rotation rod 332 is coaxially and fixedly connected to the main shaft of the driving motor 331, the rotation rod 332 is located at a position close to the upper end of the supporting rod 110, two winding rollers 333 are coaxially sleeved on the rotation rod 332, the two winding rollers 333 are fixedly connected to the rotation rod 332, the two winding rollers 333 are respectively located at positions close to two ends of the rotation rod 332, pull ropes are wound on the two winding rollers 333, and one ends of the two pull ropes, far away from the winding rollers 333, are fixedly connected to the supporting rod 310. The main shaft of the driving motor 331 rotates to drive the rotating rod 332 coaxially and fixedly connected with the driving motor to rotate, the rotating rod 332 rotates to drive the two winding rollers 333 to rotate, and the two winding rollers 333 rotate to drive the two pull ropes on the two winding rollers 333 to be wound and unwound, so that the supporting rod 310 is lifted.
Referring to fig. 1, a steering rod 400 is fixedly connected to the two support rods 110, the steering rod 400 is parallel to the fixed rod 210, and the steering rod 400 is located near the upper ends of the support rods 110. When the heald frame is tensioned, warp yarns on the warp beam are firstly pulled up, then the warp yarns bypass the steering rod 400, the direction of the warp yarns is changed by the steering rod 400, then the warp yarns fall downwards between the fixing rod 210 and the clamping rod 220, the fixing rod 210 and the clamping rod 220 fix the warp yarns, and therefore the warp yarns and the heald frame hung on the frame are arranged oppositely, and the convenience of penetrating the warp yarns to the heald frame is improved.
Referring to fig. 1, reinforcing rods 500 are mounted on both sides of each supporting rod 110, one end of each reinforcing rod 500 is fixedly connected to the corresponding supporting rod 110, the other end of each reinforcing rod 500 is fixedly connected to the base 100, and the lower end of each reinforcing rod 500 is inclined in a direction away from the corresponding supporting rod 110. The reinforcing rods 500 at the two sides of the supporting rod 110 are used for stably supporting the supporting rod 110, so that the stability of the two supporting rods 110 is improved.
The implementation principle of the heald frame support convenient to harness of the embodiment of the application is as follows: through set up thread clamping mechanism 200 on base 100, utilize thread clamping mechanism 200 with the warp centre gripping and take-up the warp, the clamping dynamics enables the warp to break away from thread clamping mechanism 200 simultaneously, then staff's rethread colludes the warp to describe the pole and colludes the warp, make the warp deviate from thread clamping mechanism 200 under the drive of hook-like pole, then wear to establish in the heald frame of one side, through utilizing thread clamping mechanism 200 to take-up the epaxial warp of warp, reduce when drafting the warp, because of touching other warp and cause other warp winding possibilities, thereby reduce the influence of drafting to the staff, improve the convenience that the staff drafted.
The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. The utility model provides a heald frame support convenient to draft which characterized in that: the warp tensioning device comprises a base (100) and a clamping mechanism (200) used for tensioning warp, wherein the clamping mechanism (200) is connected to the base (100), and when the clamping mechanism (200) tensions the warp, the warp can slide out of the clamping mechanism (200).
2. A heald frame support for facilitating drafting according to claim 1, wherein: the thread clamping mechanism (200) comprises a fixing rod (210) and a clamping rod (220), the base (100) is far away from a supporting rod (110) which is fixedly connected with one side of the ground, the fixing rod (210) is fixedly connected onto the supporting rod (110), the clamping rod (220) is parallel to the fixing rod (210), the clamping rod (220) is detachably connected with the fixing rod (210), the clamping rod (220) is used for clamping warp yarns, the fixing rod (210) is used for clamping the warp yarns, the warp yarns are in a tensioning state, and the warp yarns are slidably connected between the fixing rod (210) and the clamping rod (220).
3. A heald frame support for facilitating drafting according to claim 2, wherein: be provided with locking Assembly (230) on dead lever (210), locking Assembly (230) include screw rod (231) and nut (232), screw rod (231) fixed connection be in on dead lever (210), nut (232) threaded connection be in on screw rod (231), seted up on supporting rod (220) with joint groove (233) of screw rod (231) joint.
4. A heald frame support for facilitating drafting according to claim 3, wherein: screw rod (231) with nut (232) all are provided with a plurality ofly, and are a plurality of screw rod (231) and a plurality of nut (232) one-to-one sets up, and is a plurality of screw rod (231) set up along the length direction interval of dead lever (210), joint groove (233) are provided with a plurality ofly, and are a plurality of joint groove (233) and many screw rod (231) one-to-one sets up.
5. A heddle frame support frame facilitating drafting according to claim 4, characterised in that: a fluff layer (240) is arranged on one side of the fixing rod (210) close to the screw (231).
6. A heald frame support for facilitating drafting according to claim 2, wherein: be provided with bearing mechanism (300) that is used for hanging the heald frame on bracing piece (110), bearing mechanism (300) is including bearing pole (310) and couple (320), bearing pole (310) with bracing piece (110) are connected, bearing pole (310) are on a parallel with dead lever (210), couple (320) fixed connection be in on bearing pole (310).
7. A heddle frame support for facilitating drafting according to claim 6, characterised in that: be provided with the drive on bracing piece (110) hold driving assembly (330) that die-pin (310) goes up and down, driving assembly (330) include driving motor (331), dwang (332) and winding have spiral roller (333) of stay cord, dwang (332) rotate to be connected on bracing piece (110), spiral roller (333) coaxial cover is established on dwang (332), spiral roller (333) with dwang (332) fixed connection, hold die-pin (310) sliding connection be in on bracing piece (110), stay cord on spiral roller (333) with hold die-pin (310) fixed connection, driving motor (331) fixed connection be in on bracing piece (110), driving motor (331) with dwang (332) transmission connection.
8. A heddle frame support for facilitating drafting according to claim 7, characterised in that: fixedly connected with is used for turning to steering column (400) that the warp turned to on bracing piece (110), steering column (400) are located and are close to bracing piece (110) keep away from the position of base (100) one end, steering column (400) with dead lever (210) are parallel.
9. A heddle frame support for facilitating drafting according to claim 2, characterised in that: the utility model discloses a support bar, including bracing piece (110), bracing piece (500) and base (100), the both sides of bracing piece (110) all are provided with stiffener (500), the one end of stiffener (500) with bracing piece (110) fixed connection, the other end of stiffener (500) with base (100) fixed connection.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202221058482.2U CN217298158U (en) | 2022-05-05 | 2022-05-05 | Heald frame support convenient to drafting |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202221058482.2U CN217298158U (en) | 2022-05-05 | 2022-05-05 | Heald frame support convenient to drafting |
Publications (1)
Publication Number | Publication Date |
---|---|
CN217298158U true CN217298158U (en) | 2022-08-26 |
Family
ID=82915741
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202221058482.2U Active CN217298158U (en) | 2022-05-05 | 2022-05-05 | Heald frame support convenient to drafting |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN217298158U (en) |
-
2022
- 2022-05-05 CN CN202221058482.2U patent/CN217298158U/en active Active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN102587009A (en) | Let-off device for multilayer carbon fiber angle interlocking loom | |
CN217298158U (en) | Heald frame support convenient to drafting | |
CN211814814U (en) | Weaving production textile machine capable of preventing thread balls from loosening | |
CN205035557U (en) | Velvet apparatus for producing | |
CN106381603A (en) | Device for weaving warp-wise discontinuous seersucker on sampling weaving machine and weaving method of device | |
JP2006336183A (en) | Woven fabric-producing loom for water jet loom | |
CN212223236U (en) | Tension device for adjusting warp of ribbon loom | |
CN210506662U (en) | Warping machine | |
CN210393222U (en) | Yarn winding device for socks | |
CN216639822U (en) | Drafting reed pushing frame convenient to install | |
CN221094436U (en) | Lifting lead frame for circular loom | |
CN217298178U (en) | Warp strutting arrangement convenient to drafting | |
CN218057903U (en) | Yarn anti-knotting device | |
CN208533030U (en) | Jacquard selvage device | |
CN221028915U (en) | Automatic adjusting device for weaving line of loom | |
CN218175265U (en) | Weaving and spinning machine capable of preventing thread lumps from being loosened | |
CN214328028U (en) | Prevent weaving warper of skeining | |
CN211665248U (en) | Gold color velvet weaving machine adopting vertical creel stand | |
CN210682679U (en) | Rapier loom take-up device | |
CN114775153B (en) | Big circular knitting machine and spinning process thereof | |
CN111826784B (en) | Make up sled device that stops that floro weavingd | |
CN219448800U (en) | Yarn spinning machine capable of storing yarn body | |
CN218372672U (en) | Textile ball warp warping machine suitable for high-grade yarn dyed fabric | |
CN216193098U (en) | Leno flower building wood loom | |
CN219032532U (en) | Warp knitting machine yarn device for producing woven cloth |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |