CN210012947U - Four-roller balanced feeding device suitable for cotton slitting machine or cotton cleaning machine - Google Patents

Abstract

A four-roller balanced feeding device suitable for a cotton opener or a scutcher comprises a left multi-blade wing type upper cotton feeding roller and a right multi-blade wing type upper cotton feeding roller which are symmetrically arranged at two sides of a cotton outlet channel positioned below a cotton box, a sawtooth-shaped lower cotton feeding roller which is arranged at the right lower part of the left multi-blade wing type upper cotton feeding roller and at the left side of the cotton outlet channel, and a multi-blade wing type lower cotton feeding roller which is arranged at the left lower part of the right multi-blade wing type upper cotton feeding roller and at the right side of the cotton outlet channel; the lower end of the connecting plate is combined with an elastic adjusting mechanism which is used for driving the upper end of the connecting plate to swing around the mandrel of the left multi-blade upper cotton feeding roller through a pin shaft; and two ends of the zigzag lower cotton feeding roller mandrel are respectively combined with shaft holes processed in the middle of the connecting plate positioned on the corresponding side.

Description

Four-roller balanced feed for openers or cleaners

technical field

The utility model relates to the field of textile machinery, in particular to a four-roller balanced feeding device suitable for an opener or a cotton cleaner in the pre-spinning process of a spinning process.

Background technique

The cotton opener and the cotton cleaner are one of the indispensable key equipments in the process of opening and cleaning or the blowing and carding process. , cottonseed, etc. are exposed on the surface of the fiber bundle, and under the action of the beater's blow and the rotation of the airflow, some impurities, cottonseed, etc. are separated by the dust stick and removed by the action of centrifugal force, so as to realize opening and impurity removal, so that the large Miscellaneous early fall and less broken purpose. Since the opener plays the role of opening and impurity removal at the beginning of the cleaning or blowing-carding process, it lays a foundation for uniform mixing, creates conditions for fully exerting the function of fine cleaning, and makes the whole process coordinate and match.

At present, there are two main types of openers, one is the "free opening type" in which the raw cotton is fed into the beater room by air flow, and the other is the "hold open type" in which the raw cotton is fed into the beater room through the feeding roller. This utility model patent focuses on the "holding and opening type", and its structure and working principle are as follows:

1. The structure and working principle of the opener in the prior art (see Figure 1)

The holding opener is composed of a frame 8, a cotton feeding device 1, an opening beater 4, a dust grid device 2, a cotton box 6, a cotton outlet pipe 5 and a miscellaneous discharge pipe 3, etc. A cotton condenser 7 is connected above the cotton box 6, and the cotton condensed on the surface of the dust cage falls into the cotton box 6 by its own weight under the separation action of the cotton stripper. The cotton in the cotton box is successively sent to the opening beater 4 under the grip and transfer action of the star-shaped cotton feeding roller 9 and the grooved cotton feeding roller 16. It is gradually opened into small cotton bundles, and the impurities such as seed cotton exposed on the surface of the fiber are peeled off and dropped by the action of the dust stick and discharged to the dust filter system. The cotton outlet pipe 5 is sent to the next machine.

2. The structure and working principle of the cotton feeding device in the prior art (see Figures 2 and 3)

The prior art cotton feeding device consists of a star-shaped cotton feeding roller 9, grooved cotton feeding rollers 16 and 17, a slideway 13, a fixed bearing seat 15, a movable bearing seat 14, a compression spring 10, a base 11 and an adjusting screw 12, etc. composition. The cotton in the cotton box 6 falls between the two rotating star-shaped cotton feeding rollers 9 under the action of gravity, and is transferred to the lower groove feeding rollers 16 and 17 under its gripping action. Rolla holds the cotton and outputs it. The groove is fixed to the cotton roller 16 , and the other groove roller 17 can move left and right on the slideway 13 . When the cotton layer is too thick, the grooved roller 17 slides to the right, and the compression spring 10 is compressed and shortened. When the cotton layer becomes thinner, the grooved roller 17 moves to the left under the pressure of the spring. The preloading pressure of the spring can be adjusted through the base 11 , the adjusting screw 12 and the locking nut 18 .

The star-shaped cotton feeding roller 9 in the prior art cotton feeding device is composed of a cylinder body 21 , a plastic strip 20 and a connecting bolt 19 (see FIG. 4 ). The cylinder body 21 is made of seamless steel pipe, the plastic strip 20 is made of hard polyvinyl chloride, and the two are connected by connecting bolts 19 and adhesives. The production process is complex, time-consuming and labor-intensive, with low processing precision and short life of the plastic strip; at the same time, the holding volume of the cotton roller is small, and the output is low. In addition, due to the inconsistent thickness of the cotton layer along the machine width direction, the displacement of the movable bearing seats 14 at both ends of the grooved roller 17 is not the same. normal production.

With the development of the times and the advancement of technology, the modern blowing, blowing and carding process is developing towards a more high-yield, high-quality and efficient direction. The traditional cotton feeding device has low output, which can hardly meet the actual production needs of modern times. At the same time, the thickness of the cotton layer is When there is a large difference in the direction of the machine width, the movable bearing seat at both ends of the feed roller and the slideway are prone to interference and jamming. In addition, the contact surface between the bearing seat and the slideway is large, so the frictional resistance is also large and the sliding is not enough. For reasons such as flexibility, the device has a high failure rate, low reliability, and large maintenance labor, which affects the normal continuous production of cotton spinning mills.

SUMMARY OF THE INVENTION

The purpose of the present utility model is to provide a four-roller balanced feeding device suitable for a cotton opener or a cotton cleaning machine in view of the deficiencies existing in the above-mentioned prior art.

The purpose of this utility model can be realized through the following technical measures:

The four-roller balanced feeding device of the utility model, which is suitable for a cotton opener or a cotton cleaning machine, comprises left and right multi-blade vane type upper cotton feeding rollers symmetrically arranged on both sides of the cotton outlet channel below the cotton box. The left multi-blade upper feed roller is on the lower right and the zigzag-shaped lower feed roller on the left side of the cotton outlet channel. Sheet type lower feed roller; wherein the left and right multi-blade blade type upper feed rollers and the multi-blade blade type lower feed rollers have both ends of the mandrel respectively combined with the corresponding side wall plates, and in all The two ends of the mandrel of the left multi-blade upper feeding roller are respectively installed with connecting plates in a way of swinging around the axis, and the lower end of the connecting plate is connected to the upper end of the connecting plate through a pin shaft for driving the upper end of the connecting plate to wind around the left multi-blade vane type. The two ends of the mandrel of the zigzag lower cotton feeding roller are respectively combined with the shaft holes machined in the middle of the connecting plate on the corresponding side.

In the utility model, the rotation of the left and right multi-blade upper feeding rollers and the zigzag lower feeding rollers is driven by the feeding motor through the transmission chain, and the zigzag lower feeding rollers then drive the multi-blade blades through the chain. When the cotton roller rotates under the formula, since the number of sprocket teeth on the four rollers is constant, the speed ratio between them is constant.

In the utility model, the elastic adjustment mechanism includes an adjustment screw that is installed in the shaft hole of the fixed support in a horizontal manner. The left end of the adjustment screw is combined with the lower end of the connecting plate through a pin shaft. The left end adjustment nut is screwed on the upper part, and the compression spring and the right end adjustment nut are installed in sequence on the adjustment screw segment located at the right end of the fixed support; A spacer is provided between. When the left end adjusting nut moves to the right, the adjusting screw extends to the left end under the action of the left end adjusting nut, and then drives the connecting plate to rotate clockwise around the axis A of the left multi-blade upper feeding roller, thereby making the zigzag The distance between the lower feed roller and the multi-blade vane type lower feed roller becomes larger; on the contrary, the distance between the two becomes smaller. In addition, when the adjusting nut at the right end moves to the right, the compressed spring becomes longer and the preloading pressure becomes smaller, and vice versa, the preloading pressure becomes larger. The above-mentioned structural features can not only preset the distance between the zigzag bottom feed roller and the multi-blade type bottom feed roller through the adjustment nut at the left end, but also adjust the setting of the zigzag bottom feed roller through the adjustment nut at the right end. The high preload pressure makes the gap between the zigzag bottom feed roller and the multi-blade vane bottom feed roller can be adjusted automatically online with the thickness of the incoming cotton layer.

The purpose and working principle of the compression spring described in the utility model using two-stage compression springs are as follows:

According to the characteristics of the spring itself, under the same external force (for example, when the cotton layer is thickened to a certain extent), the deformation of the left half of the compressed spring is greater than that of the right half. The layer is thickened again, at this time only the right half of the compression spring is active. In the front part of the process of gradually thickening the cotton layer from thinning, it is technically allowed; however, when the cotton layer reaches a certain thickness, such as continuing to thicken, it is not allowed in terms of technology. At this time, the right side of the compression spring The half part starts to work to prevent the continuous thickening of the cotton layer. When the prevention is invalid (that is, when the preset thickness value is reached), the connecting plate will touch the proximity protection switch and stop for protection.

The cross sections of the left and right multi-blade upper feeding rollers are all six-blade hexagonal structures; the body of the multi-blade lower feeding rollers is a cylindrical structure, which is arranged around the cylindrical surface. There are several longitudinally arranged fins; the body of the zigzag lower feeding roller is a cylindrical structure, and the zigzag structure or other structural forms are formed by the card clothing that surrounds the cylindrical surface.

The beneficial effects of the present utility model are as follows:

There is a fixed speed ratio between the upper and lower pairs of the cotton feeding rollers of the device of the utility model, and the rotation speed of the cotton feeding rollers can be automatically adjusted on-line according to the cotton feeding situation in front, so as to fully ensure the balanced and stable cotton feeding; Wing type, large holding volume, can transfer more cotton per unit time than the traditional cotton feeding device, high output; at the same time, the roller blade can be made of ordinary steel plate, easy to obtain materials, simple processing technology, high quality It is easy to guarantee, and at the same time, the production cost is greatly reduced. One of the lower feeding rollers adopts multi-blade vane type, which has strong grip and transfer ability, and the other adopts card clothing type, which has little damage to cotton fibers, and also has a strong carding function, which is beneficial to the next cotton. The opening and removal of impurities. The cotton layer thickness adjustment device adopts a rotary type, with simple mechanism, flexible adjustment, strong process adaptability, low failure rate and strong reliability, which greatly reduces the maintenance workload and lays a solid foundation for the continuous production of cotton spinning mills.

Description of drawings

Fig. 1 is the structure and working principle of the cotton opener of the prior art cotton feeding device.

Figure 2 shows the structure and working principle of the prior art cotton feeding device.

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2 .

Fig. 4 is a structure diagram of a star-shaped feed roller in the prior art.

Serial numbers in Figures 1 to 4: 1 is the cotton feeding device, 2 is the dust grid device, 3 is the miscellaneous discharge pipe, 4 is the opening beater, 5 is the cotton outlet pipe, 6 is the cotton box, 7 is the cotton condenser, 8 is the frame, 9 is the star feed roller, 10 is the compression spring, 11 is the base, 12 is the adjusting screw, 13 is the slide, 14 is the movable bearing seat, 15 is the fixed bearing seat, 16, 17 are the grooves For the cotton feeding roller, 18 is a locking nut, 19 is a connecting bolt, 20 is a plastic strip, and 21 is a cylinder.

Fig. 5 is the structure and working principle diagram of the four-roller balanced feeding device of the present invention.

Fig. 6 is a K-K sectional view of Fig. 5

Figure 7 is a schematic diagram of roller transmission.

The serial numbers in Figures 4 and 5: 22 is the left and right multi-blade vane type top feeder rollers, 23 is the multi-blade vane type bottom feeder roller, 24 is the zigzag bottom feeder roller, 25 is the connecting plate, 26 is the The pin, 27 is the adjustment nut at the left end, 28 is the fixed support, 29 is the compression spring, 30 is the adjustment nut at the right end, and 31 is the adjustment screw.

Detailed ways

The present invention will be further described below with reference to the embodiments (with accompanying drawings).

As shown in Figures 5 and 6, the four-roller balanced feeding device suitable for a cotton opener or a cotton cleaner of the present invention includes left and right multi-blade vanes symmetrically arranged on both sides of the cotton outlet channel below the cotton box. The upper feeding roller 22 is arranged at the lower right of the left multi-blade upper feeding roller, and the zigzag lower feeding roller 24 on the left side of the cotton outlet channel is arranged at the lower left of the right multi-blade upper feeding roller. , the multi-leaf vane type lower feeding roller 23 on the right side of the cotton outlet channel; wherein the left and right multi-leaf vane type upper feeding rollers and the multi-leaf vane type lower feeding rollers have both ends of the mandrel respectively with The wall plates on the corresponding sides are combined, and connecting plates 25 are respectively installed on both ends of the core shaft of the left multi-blade fin type upper cotton feeder in a way of swinging around the axis, and the lower ends of the connecting plates 25 pass through the pin shaft 26. Combined with the elastic adjustment mechanism used to drive the upper end of the connecting plate to swing around the mandrel of the left multi-blade upper feeding roller; 25 combined with the shaft hole machined in the middle.

In the present invention, the elastic adjustment mechanism includes an adjustment screw 31 which is inserted into the shaft hole of the fixed support (28) in a horizontal manner. The adjustment screw 31 at the left end of the fixed support 28 is screwed with a left adjustment nut 27, and a compression spring 29 and a right adjustment nut 30 are sequentially installed on the adjustment screw 31 at the right end of the fixed support 28; the compression spring 29 It is composed of left and right compression springs, and an isolation washer is arranged between the two compression springs. When the left end adjusting nut 27 moves to the right, the adjusting screw 31 extends to the left end under the action of the left end adjusting nut 27, and then drives the connecting plate 25 to rotate clockwise around the axis A of the left multi-blade upper feeding roller, As a result, the distance between the zigzag-shaped lower feed roller 24 and the multi-blade type lower feed roller 23 becomes larger; on the contrary, the distance between the two becomes smaller. In addition, when the adjusting nut 30 at the right end moves to the right, the compression spring becomes longer and the preloading pressure becomes smaller, and vice versa, the preloading pressure becomes larger. The above-mentioned structural features can not only preset the distance between the zigzag lower feed roller and the multi-blade type lower feed roller through the adjustment nut 27 at the left end, but also adjust the setting of the zigzag lower feed roller through the adjustment nut 30 at the right end. The pre-tightening pressure of the cotton roller makes the gap between the zigzag lower cotton roller and the multi-blade type lower cotton roller can be adjusted automatically online with the thickness of the incoming cotton layer.

The purpose and working principle of the compression spring 29 described in the present utility model using two-stage compression springs are as follows:

According to the characteristics of the spring itself, under the same external force (for example, when the cotton layer is thickened to a certain extent), the deformation of the left half of the compression spring 29 is larger than that of the right half, and when the left half is compressed to the shortest, such as The cotton layer is thickened again, at this time only the right half of the compression spring works. In the front part of the process of gradually thickening the cotton layer from thinning, it is technically allowed; however, when the cotton layer reaches a certain thickness, such as continuing to thicken, it is not allowed in terms of technology. At this time, the right side of the compression spring The half part starts to work to prevent the continuous thickening of the cotton layer. In the case of ineffective prevention (that is, when the preset thickness value is reached), the connecting plate 25 will touch the proximity protection switch and stop for protection.

The cross-sections of the left and right multi-blade upper feeding rollers 22 are all six-blade hexagonal structures; the body of the multi-blade lower feeding rollers 23 is a cylindrical structure, which surrounds the cylinder. The surface is provided with a number of longitudinally arranged fins; the body of the zigzag lower feed roller 24 is a cylindrical structure, and a zigzag structure or other structural form is formed by the card clothing that surrounds the cylindrical surface.

The working principle of the present utility model is as follows:

Under the combined action of gravity and airflow, the cotton entering the cotton box falls between the left and right multi-blade vane type top feed rollers, and the left and right multi-blade vane type top feed rollers are driven by the power mechanism. Relatively rotating, the cotton is transferred to the lower zigzag-shaped lower cotton feeding roller and the multi-blade type lower cotton feeding roller under the holding action of the two rollers. The cotton roller rotates relatively, and the cotton is transferred to the opening beater below it for opening and removing impurities under the grip of the cotton roller by two strokes. When the cotton layer between the zigzag lower feeding roller 24 and the multi-blade type lower feeding roller 23 is thickened, the zigzag lower feeding roller 24 will overcome the tension force of the compression spring under the squeezing action of the cotton layer. , Rotate clockwise around the axis A of the left multi-blade upper feeding roller, so that the spacing between the zigzag-shaped lower feeding roller 24 and the multi-blade lower feeding roller 23 becomes larger to ensure that the cotton The layer can be transferred smoothly; on the contrary, when the cotton layer between the zigzag lower feeding roller 24 and the multi-blade fin type lower feeding roller 23 becomes thinner, the zigzag lower feeding roller 24 will be under the pressure of the compression spring 29. Under the action, it rotates counterclockwise around the axis A of the left multi-blade upper feeding roller, so that the distance between the zigzag lower feeding roller 24 and the multi-blade lower feeding roller 23 becomes smaller, and the online Automatic adjustment can effectively prevent traffic jams and ensure continuous normal production.

In addition, there is a fixed speed ratio between the upper and lower pairs of feeding rollers (see Figure 7), and the rotational speed of the feeding rollers can be automatically adjusted online according to the cotton feeding situation ahead, which fully ensures balanced and stable feeding. As shown in Figure 7: The cotton feeding motor drives the left and right multi-blade upper feeding rollers 22 and the zigzag lower feeding roller 24 through the transmission chain to rotate, and the zigzag lower feeding roller 24 then drives the multi-blade wings through the chain. The sheet-type lower feeder roller 23 rotates. Since the number of sprocket teeth on the four rollers is constant, the speed ratio between them is constant. The cotton feeding motor is equipped with a frequency converter. When the amount of cotton supplied at the front is small and the air pressure is low, the continuous cotton feeding system will send a signal to increase the cotton demand to the device of the utility model, thereby increasing the frequency of the frequency converter to increase the frequency. Increase the motor speed to achieve fast cotton supply; on the contrary, when the amount of cotton supply continues to increase and the air pressure continues to rise to a certain value, the continuous cotton feeding system will send a signal to the device of the utility model to reduce the amount of cotton required, thereby reducing the frequency conversion. The Hertz number (ie frequency) of the motor is adjusted to reduce the motor speed to achieve low-speed cotton supply, so that the cotton supply can realize the function of dynamic and online automatic adjustment.

Claims (6)

1. The utility model provides a four roller balanced feeding devices suitable for opener or scutcher which characterized in that: the cotton feeding device comprises left and right multi-blade wing type upper cotton feeding rollers (22) symmetrically arranged at two sides of a cotton outlet channel positioned below a cotton box, a sawtooth-shaped lower cotton feeding roller (24) arranged at the right lower part of the left multi-blade wing type upper cotton feeding roller and at the left side of the cotton outlet channel, and a multi-blade wing type lower cotton feeding roller (23) arranged at the left lower part of the right multi-blade wing type upper cotton feeding roller and at the right side of the cotton outlet channel; the two ends of the mandrel of the left multi-blade upper cotton feeding roller and the right multi-blade lower cotton feeding roller are respectively combined with the wall plates on the corresponding sides, connecting plates (25) are respectively arranged at the two ends of the mandrel of the left multi-blade upper cotton feeding roller in a manner of swinging around the mandrel, and the lower ends of the connecting plates (25) are combined with an elastic adjusting mechanism for driving the upper ends of the connecting plates to swing around the mandrel of the left multi-blade upper cotton feeding roller through pin shafts (26); two ends of a mandrel of the sawtooth-shaped lower cotton feeding roller (24) are respectively combined with shaft holes processed in the middle of the connecting plate (25) positioned on the corresponding side.

2. Four-roller equalizing feed device suitable for cotton openers or scutchers according to claim 1, characterized in that: the elastic adjusting mechanism comprises an adjusting screw rod (31) which is horizontally arranged in a shaft hole of the fixed support (28) in a penetrating mode, the left end of the adjusting screw rod (31) is combined with the lower end of the connecting plate (25) through a pin shaft (26), a left end adjusting nut (27) is screwed on the adjusting screw rod (31) section positioned at the left end of the fixed support (28), and a compression spring (29) and a right end adjusting nut (30) are sequentially arranged on the adjusting screw rod (31) section positioned at the right end of the fixed support (28); the compression spring (29) consists of a left compression spring and a right compression spring, and an isolation gasket is arranged between the two compression springs.

3. Four-roller equalizing feed device suitable for cotton openers or scutchers according to claim 1, characterized in that: the cross sections of the left multi-blade upper cotton feeding roller (22) and the right multi-blade upper cotton feeding roller are of a hexagonal structure.

4. Four-roller equalizing feed device suitable for cotton openers or scutchers according to claim 1, characterized in that: the body of the multi-blade lower cotton feeding roller (23) is of a cylindrical structure, and a plurality of longitudinally arranged blades are arranged around the cylindrical surface.

5. Four-roller equalizing feed device suitable for cotton openers or scutchers according to claim 1, characterized in that: the body of the sawtooth-shaped lower cotton feeding roller (24) is of a cylindrical structure, and the sawtooth-shaped structure is formed by card clothing wrapped around the cylindrical surface.

6. Four-roller equalizing feed device suitable for cotton openers or scutchers according to claim 1, characterized in that: the rotation of the left multi-blade wing type upper cotton feeding roller (22) and the right multi-blade wing type lower cotton feeding roller (24) is driven by a cotton feeding motor through a transmission chain, the saw-tooth lower cotton feeding roller (24) drives the multi-blade wing type lower cotton feeding roller (23) to rotate through the chain, and the rotating speed ratio between the four rollers is fixed and unchanged because the number of teeth of chain wheels on the four rollers is unchanged.

Images