CN211713330U - Beating-up box body of air jet loom - Google Patents

Abstract

The utility model relates to a weft-beating box of an air jet loom. A large cover plate is provided with an outer and an inner conjugate cam sheet and a first-stage driving gear threaded through the main box. The main box is arranged on the main box. Pass through the swing shaft and the large bridge gear shaft, the planetary twisting drive shaft, the swing eccentric cam drive shaft of the rear lever, and the other end of the swing shaft is connected to the box and is fixedly connected to the main and slave power arms. , The inner and outer rotors are respectively set on the slave and main power arms, and the large cover plate is provided with adjustment holes with small sealing plates corresponding to the positions of the main power arm and the outer rotor; The swing eccentric cam drive shaft is fixed on the upper eccentric shaft section and is connected to the rear lever swing eccentric cam, and the rear lever swing eccentric cam is connected to the yarn guide shaft through the rear lever. It can take into account the pause time of weft insertion of ≥60 degrees and a larger beating force, and the beating-up, twisting, and cam rotor gaps can be adjusted without interfering with other parts of the loom.

Description

An air-jet loom beating-up box

technical field

The utility model relates to a loom, in particular to a beating-up box of an air jet loom.

Background technique

The main shaft of the air-jet loom rotates at a constant speed of 360 degrees, and the beating-up reed should not only have enough pause time during weft insertion to allow the airflow to blow the weft yarn to the end in the air groove of the air-jet special-shaped reed, but also need to be inserted after the weft insertion. The weft yarn is quickly and powerfully hit to the frontmost interweaving point at 0 degrees on the loom. The longer the pause time is at the farthest position from the beating-up point, the more time is used for weft insertion, the lower the air pressure requirements for weft insertion, and the faster the vehicle speed; the greater the beating-up force, the more The fuller the cloth style, the wider the range of adaptation to heavy varieties.

Existing 280cm door width machines normally operate within 550 r/min. The eccentric crank basically uses the eccentric crank to drive the reed seat foot, reed seat and steel reed on the beating shaft through six or four links to solve the problem of weft insertion. The disadvantage of the required pause time is that the approximate pause time does not exceed 60 degrees at the longest, and the longer the pause time is, the shorter the beating time and the smaller the force. The running speed of the machine cannot be increased, and heavy fabrics cannot be woven, and because the connecting rod on the eccentric crank rotates on the crank through the bearing bush, it is a sliding friction, so the material requirements of the bearing bush are high, and it will wear out over time, which is troublesome to replace and high energy consumption. , The beating force is small, the wearing parts are many, and the maintenance volume is large. The disclosure content of the application number 201110088652.1 of the air-jet loom is a general introduction of the conjugate cam beating-up method and its advantages as a beating-up method of the air-jet loom. There is no specific feasible implementation structure scheme. It can be seen that it is an unfeasible solution, and the problem of adjusting the gap of the conjugate cam is not solved, and the rotor with the pendulum shaft facing the direction of the large gear corresponds to a cam sheet far from the large cover in the shown figure. If the bridge gear does not interfere, the pendulum shaft needs to be moved outward, and the entire box will be larger, resulting in interference with other components. The other rotor is corresponding to the cam piece close to the large cover plate, and combined with the shape of the cam piece, this structure is unscientific and cannot be used to realize jet beating and weft insertion.

SUMMARY OF THE INVENTION

In view of the above problems, the utility model provides a kind of scientific and compact structure, stable transmission, which can take into account the pause weft insertion time of ≥ 60 degrees and a larger beating force, and can meet the requirements of beating up and twisting. The cam rotor gap is adjustable and Air-jet loom beating-up box that does not interfere with other parts of the loom.

The technical scheme adopted by the utility model is: an air-jet loom beating-up box, including a main box, one side of the main box is arranged on the side of the loom, and the other side faces outward and is provided with a large cover, which is characterized in that : It also includes a conjugate cam group, two rotors, a first-level driving gear, a large bridge gear, a first-level driven gear, a second-level driving gear, and a second-level driven gear, which are arranged in the main box. The outer conjugate cam sheet, the inner conjugate cam sheet and the first-stage driving gear of the conjugate cam group are arranged inwardly and are connected to the loom main shaft passing through the main box body. The loom main shaft passes through the bearing between the main box body and the large cover The board is supported and rotated, and the main box is also connected with a swing shaft parallel to the main shaft of the loom, a large bridge gear shaft, a planetary hemming drive shaft, and a swing eccentric cam drive shaft of the rear rod. The swing shaft is arranged on the main shaft of the loom. Above, one end of the swing shaft is connected to the foot of the reed outside the main box, and the other end of the swing shaft is threaded into the box and connected to the main and slave power arms. The power arm is correspondingly arranged on the other side of the pendulum shaft, and the inner and outer rotors are respectively set on the slave power arm and the main power arm in a state of rolling without gaps on the inner and outer conjugate cam sheets corresponding to the conjugate cam group, and the outer rotor is pressed. Cover crimping, rotor adjustable eccentric mandrel can be adjusted on the main power arm, the large cover is provided with adjustment holes corresponding to the positions of the main power arm and the outer rotor, and the adjustment holes are provided with a small sealing plate; the large bridge gear shaft The large bridge gear is connected to the upper part, and the large bridge gear is meshed with the first-level driving gear. The planetary hemming drive shaft is fixed in the main box and is concentrically provided with a first-level driven gear and a second-level driving gear, and the planetary hemming drive shaft is externally connected. The planetary edger placed outside the main box, the rear lever swinging eccentric cam drive shaft is fixed on the secondary driven gear that meshes with the secondary driving gear concentrically, and the eccentric shaft section on the rear lever swinging eccentric cam drive shaft The upper connecting rod swinging eccentric cam is connected with the yarn guiding shaft through the rear rod swinging eccentric cam.

Further, the large bridge gear shaft is supported in the box in the main box to support the small side plate, and the small side plate in the box is provided with a gap for staggering the adjustment holes.

Further, the gear ratio of the first-stage driven gear and the first-stage driving gear is 1:1, that is, the speed ratio between the planetary hemming drive shaft and the loom main shaft is 1:1, and the second-stage driving gear and the second-stage driven gear are Meshing and the gear ratio is 1:1, that is, the speed ratio of the planetary hemming drive shaft and the rear lever swing eccentric cam drive shaft is 1:1.

Further, the secondary driving gear and the primary driven gear share one gear.

Further, the secondary driven gear directly meshes with the primary driven gear.

Further, the swinging eccentric cam drive shaft of the rear rod and the planetary hemming drive shaft are combined into one shaft, and there are no secondary main gears and secondary driven gears.

Further, a reed seat with a beating-up reed is arranged on the foot of the reed seat.

The benefits of the utility model: 1. The inner and outer conjugate cam sheets of the conjugate cam group correspond to the inner and outer rotors acting on both sides of the pendulum shaft. When loosening the gland, the rotor can be adjusted by turning the rotor with a special wrench through the adjustment hole. The eccentric mandrel corrects the fit gap of the outer rotor between the outer conjugate cam sheets, so that the inner and outer rotors and the inner and outer conjugate cam sheets roll with each other without clearance. The conjugate cam group can be realized by the curve design. The longer weft insertion time of ≥60 degrees can realize greater weft beating force after acceleration optimization; 2. Set up the box supporting the large bridge gear shaft in the main box to support the small side plate and reserve a gap , an adjustment hole with an outer sealing plate is opened on the large cover plate of the main box, and the adjustable eccentric shaft of the outer rotor on the main power arm can be adjusted through the adjustment hole by opening the outer sealing plate, so as to adjust the outer rotor and the outer conjugation. The fitting gap of the cam sheet is designed to reserve the space required for adjustment. On the basis of adapting to the existing loom, the interference of the original components and the convenience of operation are considered, which effectively solves the problem of installation and maintenance of the conjugate cam beating-up structure. 3. The box not only solves the beating-up problem, but also realizes the rotary mechanical transmission of the planetary hemming mechanism and the eccentric vibration mechanical transmission output of the yarn guide shaft driven by the slave power arm and the rear rod through reasonable design; 4. A total of The power shaft of the yoke cam group is arranged under the swing arm and the rotor of the two rotors of the swing shaft, and the reed seat and steel reed of the loom are above the swing shaft, which realizes the dynamic balance of high-speed reciprocating motion, and the vibration of the machine is smaller when the machine runs at high speed; 5. The outer dimensions of the box are the same as the existing Japanese looms, and the accessories outside the box are common to the original Japanese air-jet looms, which is convenient for mass production of the looms, and the looms occupy the same space, and the required air pressure of the looms is low. , Low energy consumption, large beating force, few wearing parts, small maintenance, small vibration, fast speed, the speed can run at 800 rpm for a 280cm width machine, it is the first choice for upgrading existing crank beating models.

Description of drawings

Fig. 1 is the structural representation of the utility model;

FIG. 2 is a schematic diagram of the internal structure of FIG. 1 .

In the figure: main box 1, main shaft 2, inner conjugate cam sheet 3, outer conjugate cam sheet 4, inner rotor 5, outer rotor 6, rotor adjustable eccentric mandrel 7, gland 8, adjustment hole 9, pendulum Shaft 10, primary driving gear 11, large bridge gear 12, primary driven gear 13, secondary driving gear 14, secondary driven gear 15, planetary hemming drive shaft 16, rear lever swing eccentric cam drive shaft 17 , large bridge gear shaft 18, small side plate 19 supported in the box, rear rod swing eccentric cam 20, planetary edger 21, reed seat foot 22, reed seat 23, beating-up reed 24, rear rod 25, yarn The guide shaft 26 , the yarn 27 , the main power arm 28 , the slave power arm 29 , the large cover plate 30 , and the outer cover plate 31 .

Detailed ways

Further description will be given below in conjunction with the embodiments and the accompanying drawings.

As shown in Figures 1 and 2: an air-jet loom beating-up box includes a main box 1, a main shaft 2, an inner conjugate cam sheet 3, an outer conjugate cam sheet 4, an inner rotor 5, an outer rotor 6, and the rotor is adjustable. Eccentric mandrel 7, gland 8, swing shaft 10, primary driving gear 11, large bridge gear 12, primary driven gear 13, secondary driving gear 14, secondary driven gear 15, planetary hemming drive shaft 16. Rear lever swing eccentric cam drive shaft 17, large bridge gear shaft 18, small side plate supported in the box 19, rear lever swing eccentric cam 20, planetary twister 21, reed seat foot 22, reed seat 23, beating-up Reed 24, rear rod 25, yarn guide shaft 26, main power arm 28, slave power arm 29, large cover plate 30, outer cover plate 31. The main box 1 is arranged on the side of the loom, the inner conjugated cam piece 3, the outer conjugated cam piece 4, the inner rotor 5, the outer rotor 6, the rotor adjustable eccentric mandrel 7, the gland 8, the primary driving gear 11 , the large bridge gear 12, the primary driven gear 13, the secondary driving gear 14, the secondary driven gear 15, the conjugate cam group 3 and the primary driving gear 11 are threaded through the main shaft that penetrates into the main box 1 2, a large cover plate 30 is arranged on the outside of the main box 1, and the main box 1 is connected with a swing shaft 10 parallel to the above-mentioned main shaft, a large bridge gear shaft 18, a planetary hemming drive shaft 16, and a rear lever swing eccentric cam drive The shaft 17, one end of the swing shaft 10 is connected to the reed seat foot 22 outside the main box, the reed seat foot 22 is provided with a reed seat 23 with a beating-up reed 24, and the other end of the swing shaft 10 is threaded into the main box body and connected The main power arm 28 and the slave power arm 29, the main power arm is located on one side of the large bridge gear shaft of the swing shaft, the slave power arm is correspondingly arranged on the other side of the swing shaft, and the inner and outer rotors 5 and 6 are respectively connected to the slave. On the power arm 29 and the main power arm 28, the outer rotor 6 is crimped on the main power arm 28 through the rotor adjustable eccentric mandrel 7 by the gland 8, and the inner and outer rotors correspond to the inner and outer conjugates of the conjugate cam group. The cam plate rolls without gaps, and the large cover plate 30 has an adjustment hole 9 corresponding to the position of the main power arm and the outer rotor. The upper cover of the adjustment hole 9 is equipped with an outer cover plate 31. After opening the upper cover of the adjustment hole, the rotor can be adjusted to eccentricity by turning the rotor with a special wrench. The mandrel 7 corrects the fitting gap of the outer rotor 6 between the outer conjugate cam sheets 4, so that the inner and outer rotors and the inner and outer conjugate cam sheets roll in close contact with each other without clearance; the large bridge gear shaft 18 passes through Connect the large bridge gear 12, the large bridge gear 12 meshes with the primary driving gear 11, and the planetary twist drive shaft 18 passes through the primary driven gear 13 and the secondary driving gear 14 in the main box 1, and the planetary twist The side drive shaft 18 is external to the loom planetary edger 21 which is placed outside the main box 1. The rear lever swings eccentric cam drive shaft 17 and is connected to the secondary driven gear 15 meshing with the secondary driving gear, and the rear lever swings eccentrically. The rear lever swinging eccentric cam 20 is connected to the cam drive shaft, and the rear lever swinging eccentric cam 20 is connected to the yarn guide shaft 26 through two rear levers 25 that are hinged in sequence. The rear lever swinging eccentric cam drive shaft drives the rear lever swinging eccentric cam via The rear rod 25 eccentrically drives the yarn guide shaft 26 to vibrate and guide the yarn 27 . The large bridge gear shaft is supported on the inner supporting small side plate 19 in the main box, and the inner supporting small side plate 19 is provided with a gap for staggering the position of the adjustment hole.

In this embodiment, the gear ratio of the primary driven gear and the primary driving gear is 1:1, that is, the speed ratio of the planetary hemming drive shaft to the main shaft of the loom is 1:1, the secondary driving gear and the secondary driving gear are The driven gear is meshed and the gear ratio is 1:1, that is, the speed ratio of the planetary hemming drive shaft and the rear lever swing eccentric cam drive shaft is 1:1.

In this embodiment, the planetary hemming mechanism is an existing purchased product and can be used directly.

On the basis of the above embodiment, the secondary driving gear and the primary driven gear can also share one gear.

On the basis of the above embodiment, the secondary driven gear can also be directly meshed with the primary driven gear,

On the basis of the above embodiment, the rear lever swing eccentric cam drive shaft and the planetary hemming drive shaft can also be combined into one shaft, and there are no secondary main gears and secondary driven gears.

Claims (7)

1. an air-jet loom beating-up box, comprising a main box and a large cover, one side of the main box is arranged on the side of the loom, and the other side faces outward and is provided with a large cover, it is characterized in that: also include Conjugated cam group, two rotors, primary driving gear, large bridge gear, primary driven gear, secondary driving gear, secondary driven gear, and small side plate supported in the box are all arranged in the main box. The outer conjugate cam sheet, the inner conjugate cam sheet and the first-stage driving gear of the conjugate cam group are arranged inward in order on the large cover plate, and are connected to the main shaft of the loom passing through the main box. The main shaft of the loom is connected to the main box through the bearing. The main body and the large cover are supported and rotated, and the main box is also connected with a swing shaft parallel to the main shaft of the loom, a large bridge gear shaft, a planetary twisting drive shaft, and a swing eccentric cam drive shaft of the rear rod. The swing shaft is provided with Above the main shaft of the loom, one end of the swing shaft is connected to the foot of the reed outside the main box, and the other end of the swing shaft is threaded into the box and fixedly connected to the master and slave power arms. one side, the slave arm is correspondingly arranged on the other side of the swing shaft, and the slave arm and the master arm are respectively provided with inner and outer rotors in a state of rolling without gaps corresponding to the inner and outer conjugate cam sheets of the conjugate cam group , the outer rotor is crimped by the gland, and the eccentric mandrel is adjustable on the main power arm. The large cover is provided with adjustment holes corresponding to the positions of the main power arm and the outer rotor, and the adjustment holes are provided with a small sealing plate. ;The large bridge gear shaft is connected to the large bridge gear, and the large bridge gear meshes with the first-level driving gear. The planetary twisted edge drive shaft is fixed in the main box and is concentric with a first-level driven gear and a second-level driving gear. The planetary twisting drive shaft is externally placed on the planetary twisting device outside the main box, the rear lever swinging eccentric cam drive shaft is fixed on the drive shaft and is concentrically provided with a secondary driven gear that meshes with the secondary driving gear, and the rear lever swings the eccentric cam The eccentric shaft section on the drive shaft is connected with the rear lever swing eccentric cam, and the rear lever swing eccentric cam is connected with the yarn guide shaft through the rear lever. 2. A kind of air-jet loom beating-up box according to claim 1, characterized in that: the main box is provided with a small side plate for supporting in the box, and one end of the large bridge gear shaft is supported in the main box. The small side plate is supported in the box, and the other end is supported on the main box body. There are gaps for staggering the main power arm, the outer rotor and the gland on the supporting small side plate in the box. The box supports the space between the small side plate and the large cover plate. Sufficient space is reserved, and adjustment holes and an outer sealing plate are provided at the position of the large cover plate corresponding to the outer bearing and the gland on the main power arm. 3. a kind of air-jet loom beating-up box according to claim 1 is characterized in that: the gear ratio of the first-stage driven gear and the first-stage driving gear is 1:1, that is, the planetary hemming drive shaft and the loom main shaft The speed ratio is 1:1, the secondary driving gear meshes with the secondary driven gear and the gear ratio is 1:1, that is, the speed ratio of the planetary hemming drive shaft and the rear lever swing eccentric cam drive shaft is 1:1 . 4 . The beating-up box of an air jet loom according to claim 1 , wherein the secondary driving gear and the primary driven gear share one gear. 5 . 5 . The beating-up box of an air jet loom according to claim 1 , wherein the secondary driven gear directly meshes with the primary driven gear. 6 . 6. The beating-up box of an air jet loom according to claim 1, characterized in that: the rear rod swinging eccentric cam drive shaft and the planetary hemming drive shaft are combined into one shaft, and no secondary main gear and Secondary driven gear. 7 . The beating-up box of an air jet loom according to claim 1 , wherein a reed seat with a beating-up reed is arranged on the foot of the reed seat. 8 .

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