CN2265381Y - Picking device for narrow width loom - Google Patents

Abstract

The utility model relates to a weft delivering device for a narrow width loom. In the process of transferring cam movement to a power transmission of a start plate, high speed can be realized without using the retractility materials, such as belts, etc. and without the need of the adjustment. Furthermore, the amount of movements of a shuttle can be changed easily. The utility model has the structure that the starting plate is used for moving the shuttle arranged on a sley, the swinging end of a swing rod of a pivotal bearing is fixed on a frame of a machine table to make the swinging of the swing rod drive the starting plate to carry out back and forth movements from left to right. A swing device is arranged on the swing rod, which is composed of a lever and a connecting rod. The lever and the connecting rod of a swing arm swing after receiving the transmission of the driving force from the cam.

Description

The weft insertion device of narrow loom

The utility model relates to the weft insertion device on the narrow loom.

Narrow loom in the past passes a plurality of little sheddings simultaneously in order to make a plurality of shuttles 1, round promotion fixing a plurality of shuttles 1 as shown in Figure 3 start plate 2, thereby make the shuttle 1 of corresponding each opening pass respective openings.Shuttle 1 is fixed on starting on the plate 2 of back and forth movement by pin, pinion etc. on loom board width.

Start the means of plate 2 back and forth movements to be, use paired separately cone pulley 3a, 3b, step bar 4a, 4b and shedding cam 5a, 5b etc.That is, the free rotating cone pulley 3a of board support is made of length-diameter part 6a and the 7a of minor axis portion.At the periphery of length-diameter part, after the fixing suitable backrush of belt 8a of an end (in illustration for turning right), the other end is fixed on and starts on the plate 2, then when cone pulley 3a turns round left, starts plate 2 drawing wiping left by belt 8a and moves.Equally, the length-diameter part 6b of cone pulley 3b go up to be provided with the belt 8b of the backrush of turning left, as cone pulley 3b during toward right-hand rotation, start plate 2 by belt 8b drawing wipe to the right moving.

Step bar 4a, 4b and respectively have of one's own L shapedly, its break is being supported and can freely swung by the fulcrum 9 of machine frame.The cam roller 10a, the 10b that are provided with at one end receive on shedding cam 5a, the 5b, and the parallactic angle of turning round of shedding cam 5a, 5b becomes 180 °.The other end that steps bar 4a, 4b is being fixed belt 11a and 11b respectively.11a is fixed on the 7a of minor axis portion of cone pulley 3a, and 11b is fixed on the 7b of minor axis portion of cone pulley 3b.

In above-mentioned weft insertion device, if shedding cam 5a, 5b rotation steps bar 4a, 4b alternately downwards traction belts 11a, 11b, cone pulley 3a turned round left when then belt 11a drew downwards, thereby belt 8a is pulled to make and starts plate 2 left sides moving; Cone pulley 3b was toward right-hand rotation when belt 11b drew downwards, thereby belt 8b is pulled to make and starts plate 2 right moving.Each revolution of shedding cam 5 all makes and starts plate 2 left and right sides back and forth movements like this, and shuttle 1 is left and right sides back and forth movement in shedding thereupon also.

But in said apparatus, owing to step between bar 4a, 4b and cone pulley 3a, the 3b, cone pulley 3a, 3b and start to be provided with belt 11a, 11b, 8a, 8b respectively between the plate 2, these belts use for a long time can elongation, so be necessary to adjust again.Also can get into trouble when in addition, changing belt.

At this, considering to keep when movement of the sley belt is the device (special public clear 33-10689 number) of certain tensioning state.This device have feature towards the standing part that steps bar textural, is provided with the saturating guide rod that supports with horizontal ryce at the front end that steps bar on the belt that steps between bar and cone pulley, and sets up belt in being entrenched between balladeur train on the guide rod and the cone pulley.So, along with the swing of slay, balladeur train is also sliding on saturating guide rod, always keeps short status so step belt between bar and cone pulley, and can keep certain tensioning state always.

But, because the elongation slightly of the belt that high speed caused of loom, and the imbalance of tension force between a pair of belt, the major obstacles of loom high speed in recent years become.

In addition, in the device of above-mentioned use cone pulley, therefore the move left and right amount of shuttle, change the radius that amount of movement just must change cone pulley by the radius decision of cone pulley.

The utility model is the place in view of the above problems, the motion of shedding cam as to starting plate to transmit the means of power, purpose is to obtain, and is issued to high speed in the situation of not using scalability material such as belt and need not adjust, and can changes the weft insertion device of shuttle amount of movement easily.

Shuttle moves starting on the plate of usefulness on the slay being arranged at, and the swinging end of fixing swing arm by board framework pivotal support can drive the swing of swing arm and starts plate left and right sides back and forth movement.On above-mentioned swing arm, be provided with by the lever of accepting to transmit the back swing arm from the driving force of shedding cam, and the pendulous device of connecting rod formation.In addition, the pendulous device of swing arm and swing arm is connected with the moving adjusting pin of shuttle, and connecting portion can change.At the head of swing arm, be provided with along the stop direction of slay and extend, and be longer than the guide plate of picking movement length, this guide plate be arranged on the bootstrap block that starts on the plate and involve together and freely wipe.

Shedding cam revolution drives with shedding cam involves and recommends the bar back and forth movement.This back and forth movement is sent to swing arm by connecting the moving adjusting lever of L shaped bar, connecting rod and shuttle, so the plate that starts that involves is with it made back and forth movement circularly.According to shuttle moving adjust L shaped bar and swing arm the change of pivot position, can adjust the oscillating quantity of swing arm-be the back and forth movement distance of shuttle.A kind of weft insertion device of narrow loom, this device has: the plate that starts that is used for mobile shuttle, the pendulous device of shedding cam and swing arm, it is characterized in that, above-mentioned swing arm pendulous device comprises: swing arm, the swinging end of its leading section is fixed on and starts on the plate, the base end part of its back is fixed on the board framework with the pivot suspension form, the power transmission that the connecting rod that combines with L shaped bar with the moving adjusting lever of the shuttle that is connected by L shaped bar, with swing arm and the moving adjusting lever of shuttle constitutes, this power transmission is recommending between bar and the above-mentioned swing arm of being meshed with shedding cam.

Start the bootstrap block on the plate to involve together owing to be arranged on slay, so even when the action of slay front and back, the motion of swing arm also can be sent to starts plate with the guide plate that is arranged on the swing arm top and extend along the slay direction of action.

Examples of implementation of the present utility model and figure are described below together.

Fig. 1 is the front sketch of this weft insertion device.

Fig. 2 is the top schematic diagram of the swing arm of this device.A is a front elevation, and B is a side view.

Fig. 3 is the front sketch of conventional apparatus.

The weft insertion device 21 of narrow loom of the present utility model is made up of the pendulous device 25 and the drive source shedding cam 26 thereof of swing arm 24, and swing arm 24 makes the plate 23 that starts of slay 22 swing along knitting width of cloth direction (left and right directions).

Slay 22 has a plurality of reed (not shown)s and guide a plurality of shuttles 27 of parallel in passing through the shedding of each reed.Start plate 23 suitably to guide shuttle 27 about apparatus by pin and pinion etc., this point is identical with traditional narrow loom, but starts the back and forth movement device of plate 23 but with different in the past.Promptly below starting plate 23, fixing and starting plate bootstrap block 30, it have with the beating motion of slay 22 in the same way start plate guide groove 29.

Swing arm 24 is supported by the fulcrum on the board framework 31 32 and freely swings.Its ahead the position be that the portion's member 32 that is subjected to of font is provided with guide plate 33 by side view, guide plate 33 is freely swung by axle 34,35 supportings, and with the bootstrap block 30 that starts to be provided with on the plate 23 start plate guide groove 29 to be entrenched togather freely to wipe.Shown in the B of Fig. 2, slay 22 front and back (about among the figure being) when beating up, swing arm 24 and start plate 23 always to be to involve state.

The pendulous device 25 of swing arm, by the L shaped bar 37 of recommending bar 36 of ining succession and involving with shedding cam 26, and the moving adjusting lever 39 of L shaped shuttle that links to each other with connecting rod 38 on 37 constitutes.The moving adjusting lever 39 of shuttle is provided with elongated slot 40, and it overlaps with slotted hole 41 on the above-mentioned swing arm 24, inserts the moving adjusting pins 42 of shuttles by these two slotted holes, when determining to use nut 43 to be fixed after swing arm 24 and shuttle move the intersecting angle of adjusting lever 39.Moving adjusting lever 39 circumnutation freely mutually of this moment swing arm 24 and shuttle.On shedding cam 26, the axle 45 of shedding cam 26 passes the slotted hole of recommending bar 36 ends, and the cam roller 46,47 that is arranged on slotted hole 44 two ends clips the cam surface 48 of periphery, and the beating motion that axle 45 interlocks loom is rotated.

In the utility model, adjust the back and forth movement amplitude of shuttle 27 with the method for the position of intersecting point that changes moving adjusting lever 39 of shuttle and swing arm 24 in advance.That is to say that when the front end of adjusting lever 39 was moved near shuttle in the position of the moving adjusting pin 42 of shuttle, the angle of oscillation of swing arm 24 increased, the back and forth movement amplitude of shuttle 27 increases.The position of the moving adjusting pin 42 of above-mentioned shuttle is by the width decision of the narrow cloth of being processed.

Now, during the revolution of the action interlock of lower-shaft 45 and beating-up and other drive for mechanical loom, shedding cam 26 turns round because of its cam surface 48 contacts with cam roller 46,47, and the bar 36 of recommending among Fig. 1 carries out left and right sides back and forth movement.Recommend the above-mentioned back and forth movement of bar 36, transmit, swing swing arm 24 by the moving adjusting pin 42 of shuttle by the moving adjusting lever 39 of L shaped connecting rod 37, connecting rod 38 and shuttle.As previously mentioned, oscillating quantity is adjusted by the position of the moving adjusting pin 42 of mobile shuttle.

If swing swing arm 24, then the guide plate 33 owing to its head support is entrenched togather with the plate guide groove 29 that starts that is arranged on the bootstrap block 30 that starts plate 23, therefore start plate 23 along with the swing of swing arm 24 back and forth movement, thereby make shuttle 27 pass the shedding (not shown).When the slay that carries out beating motion with above-mentioned picking campaign carries out move left and right shown in the B of Fig. 2, start the position that involves of plate bootstrap block 30 and guide plate 33 to change, thereby remain involving of bootstrap block 30 and guide plate 33.In addition, according to the pendulum angle of swing arm, guide plate 33 is that circumnutation is done at the center with axle 34 and 35, and the angle disjunction of it and swing arm 24 changes to guarantee and to start the matching of plate guide groove 29 all the time.

The utlity model has following effect.

In order to transmit the swing arm that starts the plate back and forth movement and the driving force between shedding cam, be provided with connecting rod L shaped bar and shuttle are moved the pendulous device that adjusting lever is formed by connecting, so it does not resemble and the belt that hangs on the cone pulley is produced extend, thereby do not need to adjust again fully, just can realize the high speed of machinery.

Only by the movement of the moving adjusting pin of shuttle, just can freely change the shuttle amount of exercise. Since do not use cone pulley, the weight saving of slay, thus reach easily high speed.

Claims (3)

1. the weft insertion device of a narrow loom, this device has:

Be used for the plate that starts of mobile shuttle, the pendulous device of shedding cam and swing arm is characterized in that, above-mentioned swing arm pendulous device comprises:

Swing arm, the swinging end of its leading section are fixed on and start on the plate, and the base end part of its back is fixed on the board framework with the pivot suspension form; With

The power transmission that the connecting rod that moving adjusting lever of the shuttle that is connected by L shaped bar, with swing arm and the moving adjusting lever of shuttle combine with L shaped bar constitutes, this power transmission is recommending between bar and the above-mentioned swing arm of being meshed with shedding cam.

2. the weft insertion device of narrow loom as claimed in claim 1 is characterized in that,

Also comprise the moving adjusting pin of shuttle that is connected between above-mentioned swing arm and the moving adjusting lever of shuttle.

3. the weft insertion device of narrow loom as claimed in claim 1 is characterized in that,

Be arranged at the extending and be longer than the guide plate of beating motion length of swing arm head along the beating motion direction of slay, this guide plate be arranged on the bootstrap block that starts on the plate and involve together.

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