CN211227470U - A pre-carding and cleaning device for improving the ability of carding machine to remove impurities and carding - Google Patents

Abstract

A pre-carding and impurity-removing device for improving the ability of carding machine to remove impurities and carding. A group of carding and impurity-removing mechanisms are arranged at the entrance of the revolving flat plate in the main cylinder area of the carding machine. The mechanism includes a pre-carding and impurity removal roller, a cleaning roller, a set of suction air ducts and a transmission device; the pre-carding and impurity removal roller is covered with an elastic card cloth of the impurity removal roller, and the cleaning roller is located in the pre-carding and impurity removal. Above the roller, the cleaning roller is covered with cleaning roller card clothing for cleaning; the upper part of the sealed conveying air duct composed of dust removal plates I and II is respectively connected with the suction cover and the dust removal plate in the cleaning structure of the rotary cover plate, and the lower part is connected with the dust removal plate. The cover of the combing and cleaning mechanism is connected; a triangular dust-removing knife is set under the dust-removing plate II, at the intersection of the pre-carding and cleaning roller; The rear cover plate of the pre-carding and cleaning roller and the front cover of the pre-carding and cleaning roller are installed, and a dust-removing knife is installed on the side of the front cover of the pre-carding and cleaning roller near the pre-carding and cleaning roller.

Description

A pre-carding and cleaning device for improving the ability of carding machine to remove impurities and carding

technical field

The utility model relates to carding equipment in a textile machine, in particular to a pre-carding and impurity removing device which improves the impurity removing and carding capacity of a carding machine.

Background technique

In the working area of the main cylinder of the carding machine, the main cylinder and the rotary flat plate constitute the main opening area of the carding machine. The main cylinder rotates at a linear speed of more than 2,000 meters per minute, and the revolving cover plate moves in a curved line along an arc that fits the outer diameter of the cylinder at a linear speed of less than one meter per minute. The distance between the movable cover plate and the cylinder gradually decreases from the fiber inlet to the outlet. In the main carding area, the fibers are carded and cleaned in roughly three stages. In the first stage, when the fibers have just entered the opening of the carding area, the fibers are relatively large at this time, and the short piles, impurities and neps are also relatively large. At the same time, the short pile, impurities and neps will also be decomposed and reduced, and some large impurities will be sprayed into the flat card clothing; in the second stage, in the middle of the carding area, the decomposed and reduced fibers will be in this stage. The fiber bundles are further carded into finer fiber bundles, and the linters, impurities and neps will be further decomposed and become smaller. The carding and impurity removal strength at this stage is very large; in the third stage, at the exit of the carding area , the fibers will be more thoroughly carded into single fibers, and the short piles, impurities and neps will also become extremely fine, and they will be adsorbed on the flat card cloth formed by the impurity removal in the first two stages. Finally, the fiber layer decomposed into single fiber state enters the subsequent process, and the cover board flower (short lint, impurities and neps) are cleaned by the cover board cleaning device.

The above is the carding principle of the rotary flat plate. There are two running directions of the rotary cover: Initially, the rotary cover runs in the same direction as the main cylinder, as shown in Figure 7. When the main cylinder carries fibers into the area of the revolving flat, the flat is clean and the carding ability is the strongest. At this time, due to the effect of centrifugal force when the main cylinder and the flat plate are carded and the main cylinder rotates at high speed, a large amount of short lint, impurities and neps will be sprayed on the rotary flat plate. When the movable flat plate is moved to the middle position of the carding area, the load of the flat plate is already heavy, and the impurity removal capacity is greatly reduced. When the movable flat plate runs to the exit of the carding area, a strong carding ability is required to completely decompose the fine fiber bundles into single fibers, and it is precisely in this area that the surface of the flat plate is basically completely filled with the flat plate flowers. Both the carding ability and the impurity removal ability have been weakened, and the purpose of carding cannot be achieved. And there are too many cover plate flowers on the surface of the cover plate, so that the impurities generated in this area cannot be adsorbed on the elastic card clothing covered by the cover plate. The impurities generated in this area even include large pieces generated in the first and second areas. Impurities may be taken away by the main cylinder and enter the subsequent process, causing the fibers to become dirty, which is very unfavorable for production.

Based on the above reasons, the current carding machines all adopt the way of reversing the revolving flat plate, that is, the direction of rotation of the main cylinder is opposite, as shown in Figure 5. The flat plate runs in the reverse direction. At the exit of the carding area, the flat card clothing is clean, and the impurities in this area are also thinner and less than those at the entrance. Therefore, the carding function in this area is powerful, and the fiber bundles can be thoroughly cleaned. Carded into single fibers and avoids the possibility of dirty fibers entering the subsequent process. When the flat plate runs to the middle position of the carding area, although it carries a part of short lint, impurities and neps, it is much less than the forward rotation of the flat plate, which plays a positive role in the carding and impurity removal in the middle area. effect. The problem arose when the flats were running to the entry position of the opening area. At this time, the surface of the cover plate is basically filled with cover plate flowers. Although the impurities at the entrance will not be carried to the next process due to the reverse of the cover plate, a considerable part of the cover plate clothing at the entrance has been covered by the cover plate flowers. Stuffing, so the carding capacity is greatly reduced, and the carding strength of the bulk fibers at the entrance is insufficient, resulting in a larger fiber bundle entering the second area, increasing the burden of subsequent carding, and once the output increases, the neps will also increase. , the impact on yield is obvious.

SUMMARY OF THE INVENTION

The purpose of the utility model is to provide a pre-carding and impurity removing device for improving the ability of carding machine to remove impurities and carding, aiming at the shortcomings in the above-mentioned prior art. The pre-carding and impurity removing device of the utility model cancels the rear cotton web cleaner located at the entrance of the revolving flat before entering the carding area of the main cylinder of the carding machine, and uses a set of pre-carding and impurity removing mechanisms. instead. Before the fibers enter the revolving flat, the pre-carding and impurity removing mechanism is used to card and remove impurities, and the bulk fibers are preliminarily decomposed. Reduce to reduce the work load in the flat area and improve the carding and trash removal capacity of the card.

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

The utility model is characterized in that a pre-carding and impurity-removing device for improving the impurity-removing and carding capacity of the carding machine is characterized in that: a group of carding and impurity-removing mechanisms is arranged at the entrance of the revolving flat plate in the main cylinder area of the carding machine. The carding and impurity removing mechanism includes a pre-carding and impurity removing roller, a cleaning roller, a set of suction air ducts and a transmission device; The elastic card clothing of the cleaning roller for removing lint and neps, the cleaning roller is located above the pre-carding roller, and the cleaning roller is covered with a cleaning roller card cloth for cleaning, which is used for cleaning the pre-carding and removing Impurities, short fibers and neps carried on the miscellaneous roller; the upper part of the sealed conveying air duct composed of dust removal board I and dust removal board II is respectively connected with the suction hood and dust removal board in the cleaning structure of the rotary cover, and the lower part is connected with the pre-carding The cover except the trash removal roller and the cleaning roller are connected; a triangular dust removal knife is arranged under the dust removal plate II, at the intersection of the pre-carding trash removal roller and the cleaning roller; The impurities, short lint and neps thrown out by the high-speed rotation of the cleaning roller are disposed of; the rear cover plate of the pre-carding impurity removing roller and the pre-opening card are respectively installed at the front and rear parts of the contact position between the pre-opening impurity removing roller and the main cylinder. The front cover plate of the cleaning roller, and the side of the front cover plate of the pre-carding cleaning roller near the pre-carding cleaning roller is equipped with a dust collector to ensure the airtightness of the main cylinder carding area and further improve the cleaning ability. Knife.

In the utility model, the elastic card clothing of the impurity removal roller has the same needle height and angle as the revolving flat card clothing, the density of the needle teeth is smaller than that of the revolving flat card clothing, and the tooth tips are oriented to the tooth tips of the main cylinder card clothing. relative direction.

The rotation direction of the pre-carding and cleaning roller is opposite to the rotation direction of the main cylinder, and rotates at a low speed below 1m/min. And part of the large pieces of short lint, impurities and neps generated in the previous process are accommodated between the elastic clothings of the trash removal rollers and taken away.

The tooth height of the cleaning roller clothing is higher than that of the cleaning roller elastic clothing, and is set at a negative interval of 0.5-1.5mm between the cleaning roller elastic clothing; and the front end of the cleaning roller clothing is bent toward the elasticity of the cleaning roller. The front end of the card clothing is bent in the same direction; the rotation direction of the cleaning roller is opposite to the rotation direction of the pre-carding and impurity removal roller, and rotates at a high speed of 400-500m/min.

The powers of the pre-carding and cleaning rollers are respectively driven by the cover gear shaft and the cover cleaning motor (30); or two motors are arranged to drive the pre-carding and cleaning rollers respectively (it should be noted that : Since the cover plate gear shaft is driven by the main cylinder motor, and the cover plate cleaning motor and the main cylinder motor already exist in the original transmission system of the carding machine, there is no need to add a new motor in general).

The distance between the roller body of the pre-carding and impurity removal roller and the main cylinder is set to be 0.4mm to 0.5mm, which is larger than the distance between the entrance of the rotary cover and the main cylinder, and is smaller than the last adjacent group of post-fixing The distance between the cover plate and the main cylinder.

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

Before entering the carding area of the main cylinder, the raw cotton fibers are carded and cleaned by the last set of fixed flats (two pieces), and the impurities generated by the carding of the fixed flats are no longer processed by the rear cotton net cleaner. , but replace the post-web cleaner with a set of pre-carding trash removal mechanisms. The pre-carding and impurity-removing mechanism includes a pre-carding and impurity-removing roller, a cleaning roller, a pre-carding and impurity-removing roller and a casing around the cleaning roller, a suction air duct and a transmission device. After the fibers that have come all the way are carded from the last set of fixed flat plates, they enter the carding area of the pre-carding and trash-removing rollers, where the fibers are further carded and reduced in size. Before officially entering the opening area of the revolving flat, the pre-carding of the fibers will reduce the opening pressure of the revolving flat to a certain extent, which is beneficial to production. And the fibers that have been carded by the post-fixed flat plate will also have a part of the lint, impurities and neps carried by themselves, as well as the linters, impurities and neps generated by the pre-carding and cleaning roller. In the gap of the card clothing of the carding and cleaning roller, with the rotation of the pre-carding and cleaning roller, it is transferred to the top, and then cleaned by the high-speed rotating cleaning roller covered with the cleaning special card cloth, and finally cooperated with the suction air duct. The lint, impurities and neps are sent to the cover suction duct and finally to the dust filter system. Before officially entering the opening area of the revolving flat, the fibers will remove a part of the lint, impurities and neps in advance, which is very beneficial to the carding in the revolving flat area, and also plays a positive role in improving the output of the carding machine.

The utility model mainly utilizes the method of pre-carding and removing impurities after the fibers leave the last set of fixed flats and before entering the rotating flats to improve the ability of removing impurities and carding in the main carding area of the carding machine. The core working principle of pre-carding and impurity removal is as follows: The pre-carding impurity removal roller is covered with elastic card clothing with the same height and angle as the revolving flat card clothing, and the needle tooth density is slightly smaller than that of the revolving flat card clothing. , its tooth tip is opposite to the direction of the tooth tip of the main cylinder card clothing; the rotation direction of the pre-carding and impurity removal roller is opposite to the rotation direction of the main cylinder, and rotates at a low speed of no higher than 1m/min, so that both It can form a pre-carding effect with the main cylinder card clothing, and can also accommodate and take away a part of the large pieces of short lint, impurities and neps generated in the previous process between the elastic card clothing. The cleaning roller above the pre-carding impurity removal roller is covered with a cleaning elastic card cloth, and the tooth height is higher than that of the pre-carding impurity removal roller. distance, about 1mm; the direction of the cleaning roller clothing is the same as that of the pre-carding and cleaning roller; the rotation direction of the cleaning roller is opposite to the rotation direction of the pre-carding and cleaning roller, and rotates at a high speed of about 400-500m/min , Clean up the short piles, impurities and neps that are filled between the pre-carding and cleaning roller clothings at high frequency to form a pre-cleaning effect.

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

1. Before entering the revolving flat in the carding area of the main cylinder of the carding machine, the traditional method is that the rear cotton net cleaner absorbs part of the short lint, impurities and neps produced by the carding of the fixed flat back. However, this method only removes a small part of large pieces of lint, impurities and neps, without the carding function, and cannot absorb and remove more linters, impurities and neps. After replacing the rear cotton web cleaner with the pre-carding trash removal roller, it not only increases the pre-carding function, but also absorbs more linters, impurities and neps in the elastic card clothing of the pre-carding trash removal roller. . The large fibers are further reduced before entering the revolving flat, and the carding is used more, and the quantity of short lint, impurities and neps at the entrance of the revolving flat is reduced, and the burden of removing impurities on the revolving flat is reduced.

2. When the pre-carding and trash-removing roller rotates to the top at a constant speed at a very low speed, a certain amount of short lint, impurities and neps have accumulated in the elastic card clothing covering its outer circle. The lint, impurities and neps on the carding roller will not accumulate and overlap, and all are easier to clean. It is only necessary to set a high-speed rotating cleaning roller above the pre-carding and cleaning roller, and the lint, impurities and neps on the pre-carding and cleaning roller can be cleaned, and will not return to the main cylinder.

3. There is a suction air duct above the cleaning roller, an opening is opened under the suction air duct of the original rotary cover cleaning structure, and the upper part of the suction air duct is connected with the air duct in the original rotary cover cleaning structure; A cover is set outside the roller and the cleaning roller, and the lower part of the suction duct is connected to this cover; in addition, under the dust removal plate 2 on the right side of the suction duct, at the intersection of the pre-carding and cleaning roller, a triangular dust-removing knife is set In this way, a sealed conveying air duct is formed from the pre-carding and cleaning roller to the cover plate suction air duct, and the cleaning roller in the pre-carding and cleaning mechanism can be moved at a high speed by means of the wind power of the cover plate suction. The impurities, linters and neps thrown out by the rotation are disposed of without adding new suction ports to the original suction system of the card.

4. The driving devices required for the pre-carding and cleaning rollers are provided by the gear shaft of the original rotating cover plate and the cover cleaning motor in the original rotating cover plate cleaning mechanism. Lengthen the shaft end of the gear shaft of the original revolving flat plate, set two synchronous pulleys on the shaft end of the original revolving flat plate gear shaft and the shaft end of the pre-carding impurity-removing roller, and drive with a certain transmission ratio, so that the pre-carding impurity removing roller can follow the predetermined The cleaning roller in the pre-carding and cleaning mechanism shares the original cover cleaning motor with the cleaning roller in the original rotating cover cleaning mechanism. Since the flat plate gear shaft is driven by the main cylinder motor, and the flat plate cleaning motor and the main cylinder motor already exist in the original transmission system of the carding machine, there is no need to add a new motor. In this case, the transmission space is only expanded in the axial dimension, and the other two dimensions remain unchanged, which greatly simplifies the space structure.

To sum up, the utility model has made the least changes to the main cylinder opening area of the carding machine, the most streamlined mechanical design, and the lowest transformation cost, which can improve the impurity removal and carding of the main cylinder opening area of the carding machine. capacity, thereby increasing the output of the carding machine and optimizing the sliver index.

Description of drawings

Fig. 1 is the design drawing of the pre-carding and impurity removing mechanism in the utility model.

FIG. 2 is an enlarged view of the pre-carding and impurity removing mechanism in the utility model.

Fig. 3 is the transmission principle diagram of the pre-carding and impurity removing mechanism in the utility model.

Fig. 4 is the working principle diagram of the pre-carding and impurity removing mechanism in the utility model.

Fig. 5 is a design drawing of carding and impurity removal at the entrance of the rotary flat plate of the carding machine in the prior art (the running direction of the rotary flat plate is opposite to that of the main cylinder).

Fig. 6 is an enlarged view of the design drawing of carding and impurity removal at the entrance of the rotary flat plate of the carding machine in the prior art (the running direction of the rotary flat plate is opposite to that of the main cylinder).

Fig. 7 is the design drawing of carding and impurity removal at the entrance of the rotary flat plate of the carding machine in the prior art (the running direction of the rotary flat plate is the same as that of the main cylinder).

The serial numbers in Fig. 1-Fig. 7: 1. Rear fixed cover (front, middle and rear groups) 2. Universal suction port 3. Rear cover plate of pre-carding and cleaning roller 4. Pre-carding and cleaning roller 5. Dust-removing knife 6. The front cover plate of the pre-carding and cleaning roller 7, the elastic card clothing of the cleaning roller 8, the cover of the pre-carding cleaning roller and the cleaning roller 9, the cleaning roller 10, the cleaning roller card clothing 11, the triangular dust-removing knife 12 , dust removal board 1 13, suction cover 14 in the original rotary cover cleaning structure, dust removal board 2 15, cover suction port 16, dust removal board 17 in the original rotary cover cleaning structure, cleaning roller needle for the original rotary cover cleaning Cloth 18, cleaning roller 19 for cleaning the original revolving cover plate, large brush roller 20 for cleaning the original revolving cover plate, gear shaft 21 for the revolving cover plate, a set of skeleton of the revolving cover plate 22, the revolving cover plate 23, the main cylinder 24, the rotation Elastic card clothing for flat plate 25, large brush roller card clothing for cleaning original rotary flat plate 26, passive pulley on pre-carding and impurity removal roller 27, passive pulley on cleaning roller 28, synchronous belt for driving cleaning roller 29 , The synchronous belt 30 for driving the pre-carding and cleaning roller, the original rotary cover cleaning motor 31, the synchronous pulley 32 installed on the cleaning roller for the original rotary cover cleaning, the driving pulley on the original rotary cover cleaning motor 33, the rotation The driving pulley 34 installed on the gear shaft of the cover plate, the sealing strip 35, the rear cotton screen cleaner 36 at the entrance of the original rotary cover plate, the dust removal knife I (the dust removal knife in the prior art) 37, the front cover of the rear cotton screen cleaner Plate 38, swivel cover plate 39, main cylinder clothing.

Detailed ways

The utility model patent will be further described below in conjunction with examples (accompanying drawings):

As shown in Figures 1 to 4, the feature of the pre-carding and impurity-removing device for improving the carding machine's impurity removal and carding capacity of the present invention is that a Component carding and impurity removing mechanism, the carding and impurity removing mechanism includes a pre-carding impurity removing roller 4, a cleaning roller 9, a group of suction air ducts and a transmission device; the pre-carding impurity removing roller 9 is covered with The cleaning roller 9 is located above the pre-carding and cleaning roller 4, and is covered with a cleaning roller The cleaning roller clothing 10 for cleaning is used to clean the impurities, short lint and neps carried on the pre-carding impurity removing roller 4; The suction cover 13 in the plate cleaning structure is connected with the dust removal plate 16, and the lower part is connected with the cover 8 outside the pre-carding and cleaning roller; under the dust-removing plate II14, the pre-carding and cleaning roller 4 and the cleaning roller 9 intersect. A triangular dust-removing knife 11 is set at the place; the sealed conveying air duct disposes of impurities, linters and neps thrown out by the high-speed rotation of the cleaning roller 9 by means of the wind force of the cover plate suction port 15; The front and rear parts of the contact position with the main cylinder 23 are respectively installed with the rear cover plate 3 of the pre-carding and cleaning roller and the front cover plate 6 of the pre-carding and cleaning roller, and the front cover plate 6 of the pre-carding and cleaning roller is close to the pre-carding roller. A dust-removing knife 5 is installed on one side of the carding and impurity-removing roller 4, which is used to ensure the airtightness of the carding area of the main cylinder and further improve the impurity-removing ability.

In the utility model, the impurity removal roller elastic card clothing 7 has the same needle height and angle as the revolving flat card clothing 24, the needle tooth density is smaller than that of the revolving flat card clothing 24, and the tooth tips are oriented to the main cylinder needles. The direction of the tooth tips of the cloth 39 is opposite.

The rotation direction of the pre-carding impurity removal roller 4 is opposite to the rotation direction of the main cylinder 23, and rotates at a low speed lower than 1 m/min. Carding action, and part of the large pieces of linter, impurities and neps generated in the previous process are contained between the trash removal roller elastic clothing and taken away.

The tooth height of the cleaning roller clothing 10 is higher than that of the cleaning roller elastic clothing 7, and is arranged at a negative interval of 0.5-1.5 mm from the cleaning roller elastic clothing 7; and the front end of the cleaning roller clothing 10 is bent toward the The front end of the cleaning roller elastic card clothing 7 is bent in the same direction; the rotation direction of the cleaning roller 9 is away from the rotation direction of the pre-carding and cleaning roller 4, and rotates at a high speed of 400-500 m/min.

The power of the pre-carding and cleaning roller 4 and the cleaning roller 9 is driven by the cover gear shaft 20 and the cover cleaning motor 30 respectively; It is explained that since the cover plate gear shaft 20 is driven by the main cylinder motor, and the cover plate cleaning motor 30 and the main cylinder motor already exist in the original transmission system of the carding machine, it is generally not necessary to add new ones. motor).

The distance between the roller body of the pre-carding and impurity removing roller 4 and the main cylinder 23 is set to be 0.4 mm to 0.5 mm, which is larger than the distance between the inlet of the revolving cover plate 22 and the main cylinder 23, and is smaller than the adjacent last The distance between a set of rear fixed cover plates 1 and the main cylinder 23 .

More specifically, the utility model cancels the rear cotton web cleaner 35 located at the entrance of the rotary cover 22 before entering the revolving flat 22 in the carding area of the main cylinder of the carding machine (see Figure 5 for the rear web cleaner). , 6), replaced by a set of pre-carding and impurity-removing mechanisms (so except for the pre-carding and impurity-removing rollers and their front and rear cover plates, other parts around the main cylinder can retain the original design without modification). The upper part of the conveying air duct composed of the dust removal board I12 and the dust removal board II14 is connected with the suction hood 13 and the dust removal board 16 in the rotary cover cleaning structure in the prior art, and the lower part is connected with the pre-carding and cleaning roller 4 and the cleaning roller 9. The cover shell 8 outside the pre-carding and cleaning roller is connected, and the impurities, short lint and neps thrown out by the high-speed rotation of the cleaning roller 9 can be disposed of with the help of the wind force of the cover plate suction port 15; the transmission device is responsible for the pre-carding. The power of the carding and cleaning roller 4 and the cleaning roller 9 is driven by the original cover gear shaft 20 and the original cover cleaning motor 30 respectively. Since the cover gear shaft 20 is driven by the main cylinder motor, the cover Both the cleaning motor 30 and the main cylinder motor already exist in the original transmission system of the carding machine, so there is no need to add a new motor; Two cover plates are installed before and after the pre-carding and cleaning roller 4 respectively, namely the rear cover plate 3 of the pre-carding and cleaning roller and the front cover plate 6 of the pre-carding and cleaning roller, and the front cover plate 6 of the pre-carding and cleaning roller is close to the A dust removal knife 5 is installed at the end of the carding and impurity removing roller 4, which ensures the airtightness of the carding area of the main cylinder and further improves the impurity removing ability.

The pre-carding and impurity-removing rollers 4 described in the present invention perform rotary motion at a speed of less than 1 m/min, and the direction is opposite to that of the main cylinder 23 . The roller surface is covered with the same impurity removal roller elastic card clothing 7 as the revolving cover plate 22, and the distance between the roller body of the pre-carding impurity removal roller 4 and the main cylinder 23 is set to 0.4mm～0.5mm, It is larger than the distance between the inlet of the revolving cover plate 22 and the main cylinder 23 , and smaller than the distance between the adjacent last set of rear fixed cover plates 1 and the main cylinder 23 . The purpose is to make the pre-carding and trash removal roller 4 cooperate with the main cylinder 23 to further comb the fibers that have been carded by the rear fixed cover, decompose into smaller fiber bundles, and then be rotated by the high-speed main cylinder 23. Bring into the opening area of the revolving flat. At the same time, due to the effect of centrifugal force when the main cylinder rotates at high speed, some large pieces of short lint, impurities and neps will be sprayed into the gap of the card clothing of the pre-carding and removing roller. The cleaning roller 9 located above the pre-carding and removing roller 4 rotates at a high speed of about 400-500 m/min. The lint, impurities and neps carried on the clothing 7 are removed. The cleaning roller 9 utilizes the centrifugal force generated by its own high speed, and cooperates with the suction air duct to send the lint, impurities and neps into the cover plate suction air outlet 15 (refer to FIG. 4 ).

The power devices responsible for the pre-carding and cleaning roller 4 and the cleaning roller 9 are driven by the original cover gear shaft 20 and the original cover cleaning motor 30 respectively, without adding a new motor, as shown in FIG. 3 . The shaft end of the cover gear shaft 20 is lengthened, and an active synchronous pulley 33 is installed at the shaft end, which drives the pre-opening and impurity-removing roller 4 to rotate by driving the passive synchronous pulley 26 on the pre-opening and impurity-removing roller 4 . On the other hand, the cleaning roller 9 in the pre-carding and impurity removing mechanism is installed with a passive synchronous pulley 27 at the shaft end, which is driven by the driving pulley 32 on the original cover cleaning motor 30 .

Claims (6)

1. a pre-carding and impurity-removing device that improves carding machine cleaning and carding ability, is characterized in that: a group of carding is arranged at the entrance of the revolving flat plate (22) in the main cylinder area of the carding machine an impurity-removing mechanism, the carding and impurity-removing mechanism comprises a pre-carding and impurity-removing roller (4), a cleaning roller (9), a set of suction air ducts and a transmission device; the pre-carding and impurity-removing roller (4) The upper is covered with a trash-removing roller elastic card clothing (7) that plays the role of pre-carding, impurity removal, lint and neps removal, and the cleaning roller (9) is located above the pre-carding trash-removing roller (4), The cleaning roller (9) is covered with a cleaning roller clothing (10) for cleaning, which is used to clean the impurities, short lint and neps carried on the pre-carding impurity removing roller (4); ) and dust removal board II (14), the upper part of the sealed conveying air duct is connected with the suction cover (13) and the dust removal board (16) in the cleaning structure of the rotary cover respectively, and the lower part is connected with the pre-carding roller and cleaning roller. A triangular dust-removing knife (11) is arranged below the dust-removing plate II (14), at the intersection of the pre-carding and cleaning roller (4) and the cleaning roller (9); (4) The front and rear parts of the contact position with the main cylinder (23) are respectively installed with a pre-carding roller rear cover (3) and a pre-carding roller front cover (6). A dust-removing knife (5) is installed on the side of the front cover plate (6) of the impurity removal roller close to the pre-carding impurity removal roller (4), which is used to ensure the airtightness of the carding area of the main cylinder and to further improve the impurity removal capability. 2. The pre-carding and cleaning device for improving the cleaning and carding capacity of a carding machine according to claim 1, characterized in that: the cleaning roller elastic clothing (7) and the rotary flat clothing (24) ) have the same needle height and angle, the needle tooth density is lower than the needle tooth density of the revolving flat card clothing (24), and the tooth tip is opposite to the tooth tip direction of the main cylinder card clothing (39). 3. the pre-carding and removing device of improving carding machine cleaning and carding ability according to claim 1 is characterized in that: the rotation direction of the pre-carding and cleaning roller (4) is the same as the main cylinder (23) The rotation directions are opposite to each other and rotate at a low speed of less than 1m/min. The impurity-removing roller elastic clothing (7) and the main cylinder clothing (39) form a pre-carding effect, and a large part of the The linter, trash and neps of the block are contained and carried away between the trash-removing roller elastic clothings. 4. The pre-carding and impurity-removing device for improving the impurity-removing and carding capacity of a carding machine according to claim 1, wherein the tooth height of the cleaning roller clothing (10) is higher than the elastic needle of the trash-removing roller The cloth (7) is set at a negative interval of 0.5~1.5mm from the cleaning roller elastic clothing (7); and the front end of the cleaning roller clothing (10) is bent toward the front end of the cleaning roller elastic clothing (7). The folding direction is the same; the rotation direction of the cleaning roller (9) is opposite to the rotation direction of the pre-carding and impurity removal roller (4), and rotates at a high speed of 400-500 m/min. 5. The pre-carding and removing device for improving the ability of carding machine to remove impurities and carding according to claim 1 is characterized in that: the power of the pre-carding and cleaning roller (4) and the cleaning roller (9) It is driven by the cover plate gear shaft (20) and the cover plate cleaning motor (30) respectively; or two motors are arranged to drive the pre-carding and cleaning roller (4) and the cleaning roller (9) respectively. 6. The pre-carding and removing device for improving the ability of carding machine to remove impurities and carding according to claim 1, is characterized in that: the roller body of the pre-carding and removing roller (4) and the main cylinder (4). 23) The spacing is set to 0.4mm~0.5mm, which is larger than the spacing between the entrance of the revolving cover plate (22) and the main cylinder (23), and is smaller than the adjacent last set of rear fixed cover plates and the main cylinder (23). 23) the spacing between.

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