A parallel weft beating and weft insertion mechanism
By using parallel weft-pulling and weft-guiding mechanisms in the rapier loom, the steel reel structure is simplified by using conjugated cam sets and meshing gear sets, the problems of complex and high cost of V-reel structure are solved, and more efficient and low-cost Weaving process and variety replacement.
Patent Information
- Application Number
- CN201911388360.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2019-12-30
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2039-12-30
AI Technical Summary
The production process of V-shaped reed structures in existing rapier looms is complex, has a long cycle, is expensive, and is difficult to replace varieties, which affects weaving efficiency and cost control.
Parallel weft and weft mechanism adopts a parallel weft and weft mechanism, including weft and weft fixed stroke reciprocating mechanism, weft and weft drive swing arm, weft drive shaft, weft follow-up shaft and weft fixed stroke reciprocating mechanism, weft and weft swing arm, adjustment link, weft and weft Weft tooth arm, parallel movement of steel reeds is achieved through conjugated cam sets and meshing gear sets, simplifying the structure and manufacturing process.
It has achieved streamlining of steel reed structures, shortening production cycles and reducing costs, and simplified the variety replacement process and reduced the user's usage costs.
Smart Images
Figure CN110923909B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a loom structure, in particular to a parallel weft beating and weft insertion mechanism. Background Art
[0002] The rapier loom consists of a beating-up part and a weft insertion part. Rigid rapier weft insertion includes single rapier and double rapier weft insertion. Double rapier weft insertion is mainly used for simultaneous weft insertion of the upper and lower layers of a hollow spacer fabric with a relatively large interval between the upper and lower layers. Therefore, the beating-up axis needs to rotate at a large angle. Since the reed itself is relatively high, in order to prevent the upper edge of the reed from hitting the heald frame or heald wire and to effectively utilize the opening, a V-shaped reed must be used (see attached). Figure 3 No. 28), and because the V-type reed has V-shaped teeth, the production process is relatively complicated and the cycle is long and the cost is high. When changing varieties, users cannot afford the cost of buying reeds, which can easily cost 10,000 to 20,000 yuan per reed. Summary of the invention
[0003] In view of the above-mentioned deficiencies in the prior art, the present invention provides a parallel weft beating and weft insertion mechanism which can utilize the weft insertion at the cloth fell for weaving and the reed for parallel weft beating, thereby effectively simplifying the reed structure and the manufacturing cycle and cost, and conveniently realizing the replacement of varieties.
[0004] The technical solution adopted by the present invention is: a parallel weft beating and weft insertion mechanism, including a weft beating device and a weft insertion device, characterized in that: the weft beating mechanism includes a weft beating fixed stroke reciprocating mechanism, a weft beating driving swing arm, a weft beating driving shaft, a weft beating active reed foot, a weft beating follower shaft, a weft beating follower swing arm, a main follower swing arm connecting rod, a reed seat and a steel reed, the weft beating follower shaft and the weft beating driving shaft are horizontally parallel and movably connected to a loom frame or a frame seat connected to the loom frame, the weft beating driving swing arm is connected to the weft beating driving shaft, and the weft beating fixed stroke reciprocating mechanism drives The beating-weft driving swing arm is connected to a reciprocating fixed stroke to drive the beating-weft driving swing arm to rotate. The beating-weft follower shaft and the beating-weft driving shaft are respectively connected with the lower end of the beating-weft follower swing arm and the lower end of the beating-weft active reed foot. The upper end of the beating-weft active reed foot and the upper end of the beating-weft follower swing arm are respectively hinged to the two ends of the main follower swing arm connecting rod through the first and second support shafts. The connecting line of the beating-weft driving and follower shafts and the beating-weft active reed foot, the beating-weft follower swing arm, and the main follower swing arm connecting rod form a parallelogram. The main follower swing arm connecting rod is connected with a reed seat with a steel reed. The weft insertion device includes a weft insertion fixing A fixed-stroke reciprocating mechanism, a weft insertion swing arm, an adjusting connecting rod, a weft insertion gear arm, a weft insertion gear arm support shaft, a gear shaft, an input bevel gear, an output bevel gear, a rapier driving shaft, a rapier driving gear plate and a rigid rapier; a fixed-stroke reciprocating mechanism for weft insertion drives one end of the weft insertion swing arm to be in a state of reciprocating fixed-stroke driving the weft insertion swing arm to be hinged and rotated around the middle; the other end of the weft insertion swing arm is hinged to one end of the adjusting connecting rod; the other end of the adjusting connecting rod is hinged to the lower end of the weft insertion gear arm; the middle part of the weft insertion gear arm is movably hinged to the loom frame or the frame seat connected to the loom frame through the weft insertion gear arm support shaft. The upper part of the weft insertion gear arm is an arc-shaped tooth portion, which meshes with the tooth portion on the gear shaft. Both ends of the gear shaft are supported on the loom frame or a frame seat connected to the loom frame through bearings, and the gear shaft is connected with an input bevel gear. The rapier drive shaft is vertically connected with the loom frame or a frame seat connected to the loom frame through bearings. The lower part of the rapier drive shaft is connected with an output bevel gear meshed with the input bevel gear for transmission, and the upper part of the rapier drive shaft is connected with a rapier drive toothed disc, and the outer teeth of the rapier drive toothed disc mesh with the strip teeth on the rigid rapier arranged in the rigid rapier track seat.
[0005] Furthermore, the fixed-stroke reciprocating mechanism for weft insertion includes a power shaft, a conjugate cam group, and a driving rotor. The two driving rotors are respectively connected to the two swing arms at one end of the weft insertion swing arm. The power shaft is connected to the conjugate cam group. The two cams of the conjugate cam group respectively correspond to the two driving rotors without gap.
[0006] Furthermore, the fixed-stroke reciprocating mechanism for beating the weft includes a power shaft, a conjugate cam group, and a driving rotor. The two driving rotors are respectively connected to the two ends of the beating driving swing arm. The middle part of the beating driving swing arm is movably connected to the loom frame or the frame seat connected to the loom frame through the beating driving shaft. The power shaft is connected to the conjugate cam group, and the two cams of the conjugate cam group respectively correspond to the two driving rotors without gap.
[0007] Furthermore, the fixed-stroke reciprocating mechanism for weft insertion includes a power shaft, a conjugate cam group, and a driving rotor. The two driving rotors are respectively connected to the two swing arms at one end of the weft insertion swing arm, and the power shaft is connected to the conjugate cam group. The two cams of the conjugate cam group respectively correspond to the two driving rotors without gap; the fixed-stroke reciprocating mechanism for weft beating includes a power shaft, a conjugate cam group, and a driving rotor. The two driving rotors are respectively connected to the two ends of the weft beating driving swing arm, and the middle part of the weft beating driving swing arm is movably connected to the loom frame or the frame seat connected to the loom frame through the weft beating driving shaft, and the power shaft is connected to the conjugate cam group. The two cams of the conjugate cam group respectively correspond to the two driving rotors without gap; two meshing gear groups of meshing transmission are respectively arranged on the two power shafts of the fixed-stroke reciprocating mechanism for weft insertion and the fixed-stroke reciprocating mechanism for weft beating.
[0008] Furthermore, the power shaft is a main shaft of the loom or a shaft synchronized with the main shaft of the loom.
[0009] Furthermore, the fixed-stroke reciprocating mechanism for weft insertion and weft beating is a crank rotating mechanism, and one end of the weft insertion swing arm or the weft beating driving swing arm is movably hinged on the crank shaft and reciprocates as the crank cam shaft rotates.
[0010] Furthermore, the crank cam shaft is a loom main shaft or a shaft synchronized with the loom main shaft.
[0011] During the weft insertion operation, the loom main shaft or synchronous shaft drives the conjugate cam group of the weft insertion fixed stroke reciprocating mechanism, and the two cams of the conjugate cam group drive the driving rotor without gap to drive the weft insertion swing arm to rotate around the middle hinge point. The rotation of the weft insertion swing arm drives one end of the adjusting connecting rod through its other end, and the other end of the adjusting connecting rod can adjust the positioning of the hinged transmission weft insertion gear arm through any hinge hole or arc groove, so that the weft insertion gear arm rotates around the middle hinge point and realizes that the swing range of the weft insertion gear arm is adjustable, and the arc-shaped tooth portion on the upper part of the weft insertion gear arm drives the gear shaft to rotate, and the gear shaft drives the rapier drive shaft to rotate through the bevel gear group formed by the input and output bevel gears, and the rotation of the rapier drive shaft drives the rapier drive gear plate to rotate, and the outer teeth of the rapier drive gear plate are driven by the strip tooth profile meshing on the rigid rapier. The dynamic rigid rapier moves in the rigid rapier track seat to complete the rigid rapier weft insertion; during the weft beating operation, the loom main shaft or the synchronous shaft drives the conjugate cam group of the weft beating fixed stroke reciprocating mechanism, and the two cams of the conjugate cam group drive the two driving rotors to drive the weft beating driving swing arm to rotate without gap, thereby driving the weft beating driving shaft connected to the middle of the weft beating driving swing arm to rotate, and the rotation of the weft beating driving shaft drives the weft beating active reed foot to rotate. Since the connecting line of the weft beating drive and the follower shaft and the weft beating active reed foot, the weft beating follower swing arm, and the main follower swing arm connecting rod form a parallelogram, while the weft beating active reed foot rotates, the main follower swing arm connecting rod makes a combined movement of horizontal movement in the front and rear directions and lifting and lowering in the vertical direction, and drives the reed seat connected thereon to perform parallel weft beating operation through the reed.
[0012] The invention only needs to use common flat reed for parallel weft beating operation, has simple steel structure, short production cycle and low cost, can effectively utilize weft insertion at the weaving mouth for weaving, can greatly reduce the use cost of users, and also solves the problem of variety replacement. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the structure of the present invention;
[0014] Figure 2 This is a schematic diagram of the beating structure of the present invention;
[0015] Figure 3 This is a schematic diagram of the traditional V-type reed beating structure.
[0016] In the figure: a weft insertion power shaft 1, a weft insertion conjugate cam group 2, a weft insertion drive rotor 3, a weft insertion swing arm 4, an adjusting connecting rod 5, a weft insertion gear arm 6, an arc-shaped tooth portion 601, a hinge hole 602, a weft insertion gear arm support shaft 603, a gear shaft 7, a gear portion 701, an input bevel gear 8, an output bevel gear 9, a rapier drive shaft 10, a rapier drive gear disc 11, a rigid rapier 12, a strip-shaped tooth profile 121, a rigid rapier track seat 13, a weft beating power shaft 14, a weft beating conjugate cam group 15, a weft beating drive rotor 16, a weft beating drive swing arm 17, a weft beating drive shaft 18, a weft beating active reed foot 19, a weft beating follower shaft 20, a weft beating follower swing arm 21, a main follower swing arm connecting rod 22, a reed seat 23, a reed 24, a first support shaft 25, a second support shaft 26, a meshing gear group 27, and a V-shaped reed 28. DETAILED DESCRIPTION
[0017] The invention is further described below with reference to the accompanying drawings and embodiments.
[0018] Figure 1 , 2 As shown: a parallel weft-beating and weft-insertion mechanism includes a weft-insertion power shaft 1, a weft-insertion conjugate cam group 2, a weft-insertion driving rotor 3, a weft-insertion swing arm 4, an adjusting connecting rod 5, a weft-insertion gear arm 6, an arc-shaped tooth portion 601, a gear shaft 7, a gear portion 701, an input bevel gear 8, an output bevel gear 9, a rapier driving shaft 10, a rapier driving gear disc 11, a rigid rapier 12, a strip-shaped tooth profile 121, a rigid rapier track seat 13, a weft-beating power shaft 14, a weft-beating conjugate cam group 15, a weft-beating driving rotor 16, a weft-beating driving swing arm 17, a weft-beating driving shaft 18, a weft-beating active reed foot 19, a weft-beating follower shaft 20, a weft-beating follower swing arm 21, a main follower swing arm connecting rod 22, a reed seat 23, and a reed 24.
[0019] The middle part of the weft insertion swing arm 4 is movably hinged on the loom frame or a frame seat connected to the loom frame, the two weft insertion driving rotors 3 are respectively connected to the two swing arms at one end of the weft insertion swing arm 4, the weft insertion power shaft 1 is connected to the weft insertion conjugate cam group 2, the two cams of the weft insertion conjugate cam group respectively correspond to the two weft insertion driving rotors 3 without gap and drive the weft insertion driving rotor 3 to drive the weft insertion swing arm to reciprocate and rotate around the middle of the hinge point in the mechanism at a fixed stroke, the other end of the weft insertion swing arm 4 is hinged to one end of the adjusting connecting rod 5, the other end of the adjusting connecting rod 5 is hinged to one of the multiple hinge holes at the lower end of the weft insertion tooth arm 6, the middle part of the weft insertion tooth arm 6 is movably hinged to the loom frame or connected to the loom frame through the weft insertion swing arm support shaft 603 On the frame seat of the frame, the upper part of the weft insertion gear arm 6 is a section of arc-shaped tooth portion 601, the arc-shaped tooth portion is meshed with the tooth portion 701 on the gear shaft 7, both ends of the gear shaft are supported on the loom frame or the frame seat connected to the loom frame through bearings, the gear shaft 7 is connected with the input bevel gear 8, the rapier drive shaft 10 is vertically connected to the loom frame or the frame seat connected to the loom frame through bearings, the lower part of the rapier drive shaft 10 is connected with the output bevel gear 9 meshed with the input bevel gear 8 for transmission, the upper part of the rapier drive shaft 10 is connected with the horizontally arranged rapier drive toothed disc 11, and the outer teeth of the rapier drive toothed disc 11 are meshed with the strip-shaped tooth profile 121 on the rigid rapier 12 arranged in the rigid rapier track seat 13;
[0020] The beating follower shaft 20 and the beating drive shaft 18 are horizontally and parallelly connected to the loom frame or a seat connected to the loom frame. The beating drive swing arm 17 is connected to the beating drive shaft 18. The two beating drive rotors 16 are respectively connected to the two ends of the beating drive swing arm 17. The middle part of the beating drive swing arm is movably connected to the loom frame or a seat connected to the loom frame through the beating drive shaft 18. The beating power shaft 14 is connected to the beating conjugate cam group 15. The two cams of the beating conjugate cam group respectively correspond to the two beating drive rotors without gap to drive the beating. The weft driving swing arm rotates back and forth in a fixed stroke around its middle at the hinge point in the mechanism, and the lower end of the weft beating follower swing arm 21 and the lower end of the weft beating active reed foot 19 are respectively connected to the weft beating follower shaft and the weft beating driving shaft, and the upper end of the weft beating follower swing arm and the upper end of the weft beating active reed foot are respectively hinged to the two ends of the main follower swing arm connecting rod 22 through the second and first support shafts 26 and 25, and the connecting line of the weft beating drive and follower shaft and the weft beating active reed foot, the weft beating follower swing arm and the main follower swing arm connecting rod form a parallelogram, and the main follower swing arm connecting rod is connected with a reed seat 23 with a steel reed 24.
[0021] In this embodiment, all the axes in the mechanism that are supported are connected to the loom frame or a seat connected to the loom frame; all the swing arms in the mechanism that are movably hinged are movably hinged to the loom frame or a seat connected to the loom frame.
[0022] On the basis of this embodiment, the main shaft of the loom or a shaft synchronized with the main shaft of the loom can be used as the power shaft for weft insertion or beating up. Or the power shaft of the fixed stroke reciprocating mechanism for beating up and weft insertion can be driven by a pair of mutually meshing gear sets 27 to realize power input of a power shaft.
[0023] On the basis of this embodiment, the multiple hinge holes at the lower end of the weft insertion gear arm 6 at the other end of the adjusting connecting rod 5 can be replaced by arc grooves.
[0024] On the basis of this embodiment, the fixed stroke reciprocating mechanism of weft insertion and beating-up can be replaced by a crank rotating mechanism, and one end of the weft insertion swing arm or the beating-up driving swing arm is movably hinged on the crank shaft and reciprocates with the rotation of the crank cam shaft. The crank cam shaft is the main shaft of the loom or a shaft synchronized with the main shaft of the loom.
Claims
1. A parallel weft beating and weft insertion mechanism, comprising a weft beating device and a weft insertion device, characterized in that: The beating device comprises a beating fixed stroke reciprocating mechanism, a beating driving swing arm, a beating driving shaft, a beating active reed foot, a beating follower shaft, a beating follower swing arm, a main follower swing arm connecting rod, a reed seat and a reed. The beating follower shaft and the beating driving shaft are horizontally and parallelly connected to the loom frame or a frame seat connected to the loom frame. The beating driving swing arm is connected to the beating driving shaft. The beating fixed stroke reciprocating mechanism drives and connects the beating driving swing arm to be in a reciprocating fixed stroke driving beating driving swing arm rotating state. The beating follower shaft and the beating driving shaft are respectively connected to the lower end of the beating follower swing arm and the lower end of the beating active reed foot. The upper end of the beating active reed foot and the upper end of the beating follower swing arm are respectively connected to the first and second support shaft movable hinges. The two ends of the main follower swing arm connecting rod are connected, and the connecting line of the weft-beating drive and the follower shaft and the weft-beating active reed foot, the weft-beating follower swing arm, and the main follower swing arm connecting rod form a parallelogram, and the main follower swing arm connecting rod is connected with a reed seat with a steel reed; the weft insertion device includes a weft insertion fixed stroke reciprocating mechanism, a weft insertion swing arm, an adjusting connecting rod, a weft insertion gear arm, a weft insertion gear arm support shaft, a gear shaft, an input bevel gear, an output bevel gear, a rapier driving shaft, a rapier driving gear plate and a rigid rapier, the weft insertion fixed stroke reciprocating mechanism drives and connects one end of the weft insertion swing arm to be in a state of reciprocating fixed stroke driving the weft insertion swing arm to rotate around the middle part, the other end of the weft insertion swing arm is hinged to one end of the adjusting connecting rod, the other end of the adjusting connecting rod is hinged to the lower end of the weft insertion gear arm, and the middle of the weft insertion gear arm The weft insertion gear arm support shaft is movably hinged on the loom frame or the frame seat connected to the loom frame. The upper part of the weft insertion gear arm is an arc-shaped tooth portion, which meshes with the tooth portion on the gear shaft. Both ends of the gear shaft are supported on the loom frame or the frame seat connected to the loom frame through bearings. The gear shaft is connected with an input bevel gear. The rapier drive shaft is vertically connected with the loom frame or the frame seat connected to the loom frame through bearings. The lower part of the rapier drive shaft is connected with an output bevel gear meshed with the input bevel gear for transmission. The upper part of the rapier drive shaft is connected with a rapier drive toothed disc. The outer teeth of the rapier drive toothed disc mesh with the strip-shaped teeth on the rigid rapier arranged in the rigid rapier track seat. The fixed weft insertion stroke reciprocating mechanism includes a power shaft, a conjugate cam assembly , driving rotors, the two driving rotors are respectively connected to the two swing arms at one end of the weft insertion swing arm, the power shaft is connected to the conjugate cam group, and the two cams of the conjugate cam group respectively correspond to the two driving rotors without gap. The fixed-stroke reciprocating mechanism for weft beating includes a power shaft, a conjugate cam group, and a driving rotor. The two driving rotors are respectively connected to the two ends of the weft beating driving swing arm, and the middle part of the weft beating driving swing arm is movably connected to the loom frame or the frame seat connected to the loom frame through the weft beating driving shaft, the power shaft is connected to the conjugate cam group, and the two cams of the conjugate cam group respectively correspond to the two driving rotors without gap. Two meshing gear groups of meshing transmission are respectively arranged on the two power shafts of the fixed-stroke reciprocating mechanism for weft insertion and the fixed-stroke reciprocating mechanism for weft beating.
2. The parallel weft beating and weft insertion mechanism according to claim 1, characterized in that: The power shaft is a main shaft of the loom or a shaft synchronized with the main shaft of the loom.
3. The parallel weft beating and weft insertion mechanism according to claim 1, characterized in that: The fixed stroke reciprocating mechanism for weft insertion and beating-up is a crank rotating mechanism, and one end of a weft insertion swing arm or a weft beating-up driving swing arm is movably hinged on the crank shaft and reciprocates with the rotation of the crank cam shaft.
4. The parallel weft beating and weft insertion mechanism according to claim 3 is characterized in that: The crank cam shaft is a main shaft of the loom or a shaft synchronized with the main shaft of the loom.
5. The parallel weft beating and weft insertion mechanism according to claim 1, characterized in that: The other end of the adjusting connecting rod is hinged in a plurality of hinge holes or arc grooves at the lower end of the weft insertion tooth arm.