CN206654976U - Drawing frame roller pressue device - Google Patents

Abstract

A kind of drawing frame roller pressue device, its solve technical scheme be, including pressure arm and roller, it is characterized in that, at left and right sides of the lower section of pressure arm groove is provided with wall, the front and rear side of groove is provided with square groove, in square groove built with rotatable roller bearing, pressuring shaft is housed on roller bearing, is pressed in below pressuring shaft on roller, bearing plate is fixedly connected with above pressure arm, lever is pressed with above bearing plate to be pressed, cam is installed below the other end of lever, lever is point articulated by propping up, and cam is connected to drive device；Effective solve produces that sliding friction is fragile, pressure instability caused by roller radial-play between pressure arm and roller, the problem of influenceing product quality.

Description

Draw frame rolling press device

technical field

The utility model relates to the technical field of drawing frame pressurization, in particular to a drawing frame rolling pressing device.

Background technique

Drawing frame is used in the textile industry to improve the internal structure of sliver, so as to improve the uniformity of its long segment, reduce the unevenness of weight, make the fibers in the sliver straight and parallel, reduce the hook, and make the fineness meet the It is stipulated that cotton slivers of different types or qualities are mixed evenly to achieve the specified mixing ratio.

The drawing frame mainly includes the feeding part, drafting part, strip forming part and some automatic devices of the drawing frame. Wherein the drawing part needs pressurization device to carry out pressurization during the working process.

In the pressurizing device of the current draw frame, when the pressure is applied to the top roller, the contact between the pressure arm and the top roller shaft is mostly line contact or arc surface contact, and during the rotation of the top roller, the contact surface of the pressure arm slides Friction, the accumulation of frictional heat after long-term work, will damage the contact surface of the pressure arm, and then damage the pressure arm.

And due to the long-term rotation of the top roller, the top roller may move slightly in the radial direction. The pressure arm of the traditional pressure device cannot follow the movement of the top roller shaft to adjust, resulting in pressure that cannot pass through the center of the top roller shaft. This leads to unstable pressure and affects the quality of strips.

Therefore, there are following problems in the present draw frame pressing device:

1. The pressure arm and the top roller are sliding and frictional, which is easy to be damaged.

2. The pressurizing device cannot be adjusted according to the movement of the top roller, resulting in unstable pressure and affecting product quality.

Utility model content

In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a rolling pressurizing device for a draw frame, which effectively solves the problem of the sliding friction and the unstable pressure caused by the radial movement of the top rollers. Product quality issues.

A rolling pressurizing device for a draw frame, including a pressure arm, characterized in that grooves are formed on the left and right side walls below the pressure arm, and square grooves are formed on the front and rear sides of the groove, in which a rotatable Roller, the roller is equipped with a pressure shaft, the lower part of the two pressure shafts is pressed on the top roller, the upper part of the pressure arm is connected to the bearing plate, and a lever is pressed on the upper part of the bearing plate to apply pressure, and the other end of the lever is equipped with a cam, and the lever Articulated via a fulcrum, the cam is connected to the drive unit.

Preferably, the lower part of the pressure arm is a V-shaped inclined wall with an angle of 120°.

Preferably, the angle between the centers of the two pressing shafts and the center line of the top rollers is 60°.

Preferably, a first spring wound around the pressure arm is installed below the bearing plate, and the lower end of the first spring is connected to the bracket.

Preferably, the second spring fixed between the upper end of the square groove and the roller is installed in the square groove.

Preferably, the rollers are provided with limit plates that are clamped on the front and rear sides of the square groove.

Preferably, the driving device is a motor.

The utility model has an ingenious structure, and effectively solves the problems that the sliding friction between the pressure arm and the top roller is easy to be damaged, the pressure is unstable caused by the radial movement of the top roller, and the product quality is affected.

Description of drawings

Fig. 1 is a schematic diagram of the front view of the utility model.

Fig. 2 is a schematic diagram of the inclined wall of the pressure arm of the present invention.

detailed description

The foregoing and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of the embodiment with reference to the accompanying drawings 1 to 2 . The structural contents mentioned in the following embodiments are all based on the accompanying drawings of the description.

Various exemplary embodiments of the present utility model will be described below with reference to the accompanying drawings.

Embodiment 1, a rolling pressurization device for a draw frame, including a pressure arm 6 and a top roller 1, the pressure arm is connected to a force releasing mechanism and a force-receiving part, and is used to transmit force to the top roller 1, and the left and right sides of the pressure arm 6 There are grooves 12 on the two side walls to provide space for installing other components. Square grooves 5 are arranged on the front and rear sides of the groove 12 to control the vertical movement of components in the square grooves 5. The rotatable roller 3 of the square groove 5, the roller 3 is equipped with the pressure shaft 2 in the groove 12, there are two pressure shafts 2, symmetrically distributed on both sides, the pressure shaft 2 can freely rotate with the roller 3, And can move vertically in the square groove 5 with the roller shaft 3, the bottom of the two pressure shafts 2 is pressed on the top roller 1, so that the pressure is transmitted to the top roller 1 through the pressure shaft 2, and the pressure shaft 2 can Rolling with the rotation of the top roller 1, the top of the pressure arm 6 is connected to the bearing plate 13, which is used to directly contact and bear the force transmitted by the force release mechanism. A lever 8 is pressed above the bearing plate 13 to apply pressure. To realize the effect of amplifying force, a cam 9 is installed under the other end of the lever 8, through the rotation of the cam 9, the up and down movement of the lever 8 is controlled, and the lever 8 is hinged through the fulcrum 15 as the rotation center of the lever 8, and the position of the fulcrum 15 is different The ratio of the amplifying force can be adjusted, and the cam 9 is connected to the driving device 11 to provide the power for the cam 9 to rotate.

Embodiment 2, on the basis of Embodiment 1, the lower part of the pressure arm 6 is a V-shaped inclined wall with an angle of 120°, which is used to install the symmetrically arranged pressing shaft 2 .

Embodiment 3, on the basis of Embodiment 1, the angle between the center of the two pressurizing shafts 2 and the center line of the top roller 1 is 60°, and the included angle of 60° makes the stress effect of the top roller 1 better .

In the 1-3 embodiment, when the utility model is in use, the driving device 11 is first started to drive the cam 9 to rotate, and the rotation of the cam 9 makes the short arm end of the lever 8 move linearly up and down. When a certain pressure is reached, the cam stops , the movement of the short arm end of the lever 8 makes the lever 8 rotate around the fulcrum 15, and then drives the movement of the long arm end, so that the small force on the cam 9 is amplified by the lever, and the load-bearing plate 13 is moved down, thereby driving the pressure arm 6 to The downward movement makes the pressing shaft 2 press against the top roller 1 to realize the pressing action of the top roller 1.

During the working process, the rotation of the top roller 1 will drive the relative rotation of the pressure shaft 2 to realize the rolling motion between the two, reduce friction, improve the service life of the pressure arm 6, reduce the number of replacements, and improve work efficiency.

The two pressing shafts 2 are symmetrically arranged. If the top roller 1 moves radially during the working process, the two symmetrically arranged pressing shafts 2 will be unevenly stressed, and the uneven force on the two pressing shafts 2 will cause imbalance on both sides. , the slight swing of the pressure arm 6 is adjusted until the two pressure shafts 2 are under the same force and reach a balanced state. At this time, the pressure exerted by the pressure arm 6 must be at the center of the top roller 1, which solves the problem that the top roller 1 moves during the working process. The movement causes the problem of pressure eccentricity.

Embodiment 4, on the basis of Embodiment 1, the first spring 7 wound around the pressure arm 6 is installed under the bearing plate 13, and the lower end of the first spring 7 is connected to the bracket 10. When pressing, the first spring 7 is in a compressed state. When in a non-working state, the compressed first spring 7 will lift upwards, so that the pressure arm 6 moves upwards, breaks away from the top roller 1, and stops working.

Embodiment five, on the basis of embodiment one, the second spring 4 connected between the upper end of the square groove 5 and the roller 3 is housed in the square groove 5. During the working process, because the thickness of the sliver is not Complete consistency will cause the top roller 1 to shake up and down, and the first spring 4 will drive the roller shaft 3 to adjust up and down in the square groove 5 when the top roller 1 shakes up and down, so as to play a damping effect.

Embodiment 6, on the basis of Embodiment 1, limit plates 14 that are stuck on the front and rear sides of the square groove 5 are installed on the roller shaft 3 to prevent the pressure shaft 2 connected to the roller shaft 3 from following the top roller. 1. Move back and forth during the rotation to avoid the risk of falling off.

Embodiment 7, on the basis of Embodiment 1, the driving device 11 is a motor, which is used to provide the power for the rotation of the cam 9 .

The utility model has an ingenious structure, and effectively solves the problems that the sliding friction between the pressure arm and the top roller is easy to be damaged, the pressure is unstable caused by the radial movement of the top roller, and the product quality is affected.

Claims (7)

1. drawing frame roller pressue device, including pressure arm（6）And roller（1）, it is characterised in that pressure arm（6）Lower section Groove is provided with the wall of the left and right sides（12）, groove（12）Front and rear side be provided with square groove（5）, in square groove（5）Built with rotatable roller bearing （3）, roller bearing（3）It is upper that pressuring shaft is housed（2）, pressuring shaft（2）Lower section is pressed in roller（1）On, pressure arm（6）Top be fixedly connected Bearing plate（13）, bearing plate（13）Top is pressed with lever（8）Pressed, lever（8）The other end below cam is installed （9）, lever（8）Pass through fulcrum（15）It is be hinged, cam（9）It is connected to drive device（11）.

2. drawing frame roller pressue device according to claim 1, it is characterised in that described pressure arm（6）Under Into the skew wall of V-type, skew wall angle is 120 ° in portion.

3. drawing frame roller pressue device according to claim 1, it is characterised in that two described pressuring shafts（2） Center and roller（1）Line of centres angle be 60 °.

4. drawing frame roller pressue device according to claim 1, it is characterised in that described bearing plate（13）Under Side, which is provided with, is wrapped in pressure arm（6）On the first spring（7）, the first spring（7）Lower end be connected to support（10）.

5. drawing frame roller pressue device according to claim 1, it is characterised in that described square groove（5）Built with It is connected to square groove（5）Upper end and roller bearing（3）Between second spring（4）.

6. drawing frame roller pressue device according to claim 1, it is characterised in that described roller bearing（3）Upper installation It is stuck in square groove（5）The limiting plate of front and rear sides（14）.

7. drawing frame roller pressue device according to claim 1, it is characterised in that described drive device（11）For Motor.