90results about "Combing machines" patented technology

The application relates to a combing and drawing combined machine and process for ramie, flax tow and wool fibers, which comprises a plurality of wool type combers, a guide table, a plurality of guide rollers and a drawing machine; the plurality of wool type combers are arranged side by side, the surfaces of the output roller pairs of the wool type combers are provided with a plurality of grooves; the guide table is arranged in front of the plurality of wool type combers; the plurality of guide rollers are correspondingly arranged with the plurality of wool type combers and are rotatably installed between the metal guide rollers; the drawing machine is arranged on one side of the guide table and comprises a rear roller pair, a middle roller, a pressure roller and a front roller pair; the rear roller pair comprises a rear roller and a rear flat roller and forms a rear nip therebetween; the front roller pair comprises a front roller and a front flat roller and forms a front nip therebetween; the combing strips output by the plurality of wool type combers are directly combined and drawn by the drawing machine, and then the output strips are output, the number of subsequent drawing channels can be reduced, the process flow can be effectively shortened, and meanwhile the quality of the output strips can be ensured.

The present application relates to the technical field of textile equipment, and discloses a silk sliver dyeing and double combing device, which comprises a combing mechanism, a top comb plate frame installed in the combing mechanism, a plurality of needle groups A arranged in the top comb plate frame, an installation frame installed at the bottom of the top comb plate frame, arc-shaped placement frames arranged in the installation frame, arc-shaped rubber pads installed in the arc-shaped placement frames, sliding shaft bodies installed on the two sides of the arc-shaped placement frames, inclined grooves arranged on the inner walls of the two sides of the installation frame, and sensing elements installed in the inclined grooves. The silk sliver dyeing and double combing device is used for detecting whether the needle groups A are bent according to the cross-sectional area of the needle groups A by the contact between the arc-shaped rubber pads and the needle groups A. The curved needle groups A exert force on the arc-shaped rubber pads during the ascending movement, and the sliding shaft bodies on the arc-shaped placement frames and the inclined grooves are in a positional relationship, so that the sliding shaft bodies exert force on the sensing elements during the movement, thereby detecting the bending condition of the needle groups A.

The utility model discloses an efficient combing device of a top comb of a combing machine, which relates to the technical field of combing machines and comprises a top comb body, a top comb mounting plate is arranged below the top comb body, a top comb frame is arranged on the top surface of the top comb mounting plate, the top comb body is fixedly mounted at the top of the top comb mounting plate through the top comb frame, and a rubber plate is arranged on the bottom surface of the top comb mounting plate. Connecting plates are fixedly connected to the two sides of the top comb mounting plate correspondingly, a combing machine frame plate is arranged on one side of the top comb mounting plate, two mounting cavity groove plates are fixedly connected to the top of the combing machine frame plate, the two mounting cavity groove plates are matched with the two connecting plates correspondingly, and a mounting assembly is arranged between the top comb body and the combing machine frame plate. The number of the installation assemblies is two, through operation of the installation assemblies, a user can conveniently detach the top comb mechanism from the machine frame, an operator can conveniently carry out maintenance work on the top comb mechanism, and the service life of the top comb combing device is prolonged.

The invention relates to a brush driving device which comprises a wall plate, a brush servo motor and a brush servo motor are installed on the wall plate, and the brush servo motor is connected with a brush and drives the brush to work. The brush servo motor is connected with the guide plate, the guide plate is provided with a guide wheel, the guide wheel is located in the guide rail, and the brush servo motor drives the guide plate to translate in the guide rail so as to drive the brush to be parallel in the guide rail. The brush servo motor independently drives the brush, and the brush servo motor drives the screw rod to drive the brush to rotate and to linearly translate in the guide rail, so that the brush can be adjusted to the most appropriate position when the circular comb is cleaned, the brush is always tangent to the circular comb and the doffer, fine hair in the period can be removed from the impurity removal groove, and the cleaning efficiency is improved. Therefore, the doffer can clean short fibers and grass impurities in the brush more easily, the service life of the brush is prolonged, loss is reduced, and the cleaning effect is improved.

The utility model discloses a combing machine release roller hybrid driving device, which belongs to the technical field of combing machines, and comprises a rack, the left end of the front side of the rack is fixedly connected with a console, the inner wall of the rack is fixedly connected with a release roller driving component, the surface of the rack is fixedly connected with a support plate, and the upper surface of the support plate is fixedly connected with a negative pressure box; the surface of the rack is fixedly connected with a motor, and the output end of the motor is fixedly connected with a rotating shaft. A fixing block is fixedly connected to the lower surface of the supporting plate, the rotating shaft is rotationally arranged in the fixing block, a connecting plate is fixedly connected to the lower surface of the supporting plate, and meanwhile a connecting shaft is rotationally arranged in the connecting plate. According to the combined driving device for the detaching roller of the combing machine, through the arrangement of the negative pressure box and the suction head, residues of fiber fine lines on the surface of the device are effectively reduced, the detaching roller can operate according to the accurate speed and movement rule, and it is ensured that key combing and detaching actions of the combing machine are accurately executed.

The utility model discloses an adjustable cotton feeding device of a combing machine, which comprises a support, a connecting arm is hinged to the support, mounting plates are fixed at the tail end of the connecting arm, two telescopic cylinders are further mounted on the support, one ends of piston rods of the telescopic cylinders are hinged to the support, the other ends of the piston rods of the telescopic cylinders are hinged to the connecting arm, and positioning sleeves are mounted on the two mounting plates through bearings. A roller is mounted between the two positioning sleeves, and a driving mechanism is mounted on the mounting plate on one side; a sealing cover is arranged at one end of the positioning sleeve, a mounting groove is enclosed by the positioning sleeve and the sealing cover, and mounting shafts are arranged at two ends of the roller; the driving mechanism comprises a motor mounted on the mounting plate, the positioning sleeve is provided with a connecting shaft, and an output shaft of the motor is connected with the connecting shaft through a coupler; the motor is mounted outside, and the mounting rack is fixed with the mounting plate through screws, so that mounting and dismounting are facilitated; and by arranging the sealing covers, the roller can be directly disassembled after the sealing covers on the two sides are disassembled, and the roller can be installed in a similar way, so that the roller is convenient to assemble and disassemble, and cleaning is facilitated.

The utility model is suitable for the field of spinning equipment, and provides a spinning roller convenient to replace, which comprises a roller shaft and connecting caps connected with two ends of the roller shaft, wherein the connecting cap is rotatably mounted on the rack; a telescopic connecting part is arranged at the connecting end, connected with the connecting cap, of the roller shaft; a space for placing the telescopic connecting part is formed in the roller shaft; the two telescopic connecting parts synchronously perform telescopic work; the telescopic connecting part is in an extending state in a normal state; and the connecting cap is provided with a through hole which is convenient for the extrusion piece to extrude the telescopic connecting part to generate state switching, so that the roller shaft can be conveniently connected with the connecting cap through the telescopic connecting part capable of synchronously stretching out and drawing back, the roller shaft is further conveniently replaced, the connecting cap does not need to be disassembled in the replacement process, and the replacement efficiency is improved. The step of replacing the roller shaft is simplified, and the workload is reduced.

The utility model discloses a novel combing structure of a combing machine, and relates to the technical field of combing machines. The device comprises a rotating shaft, the outer wall of the rotating shaft is fixedly connected with a sleeve shell, the device further comprises an installation mechanism, the installation mechanism comprises a plurality of limiting shells arranged on the left side and the right side of the sleeve shell, a plurality of rotary knobs on the left side and the right side are rotated firstly, the rotary knobs drive a worm to rotate, and the worm drives a worm gear and a threaded rod to rotate; the threaded rods drive the sliding shells and the cylinders to slide on the outer walls of the fixing rods and move in the direction away from the center of the rotating shaft, so that the multiple sliding shells drive the multiple cylinders to move in the direction away from the center of the rotating shaft, and the multiple cylinders are adjusted in height by rotating a rotary knob forwards and backwards. Through the operation, the height of the cylinder can be adjusted to meet different carding requirements, the operation process is shortened, the operation time is shortened, the overall working efficiency of carding is improved, and meanwhile the universality and flexibility of equipment are improved.

The invention provides a multi-licker-in type cover plate combing machine which comprises a shell, a top movable roller mechanism, a tin flange driving mechanism, a movable roller assembly, a doffer wheel, an inlet roller and an outlet roller. The inlet roller, the movable roller assembly, the tin flange driving mechanism, the doffer wheel and the outlet roller are sequentially arranged in the shell. An outlet is formed in the shell, and the top movable roller mechanism is arranged on the top of the tin flange driving mechanism. According to the multi-licker-in type cover plate combing machine, the shell, the top movable roller wheel mechanism, the tin flange driving mechanism, the movable roller wheel assembly, the doffer wheel, the inlet roller wheel and the outlet roller wheel are matched with one another. According to the invention, the cylinder wheel is moved to the bottom of the cylinder wheel by using a soft tooth crawler belt which is originally used for carding a cotton surface when the cylinder wheel is detached, so that the cylinder wheel is supported and moved after the cylinder wheel is detached. And the maintenance work of personnel is greatly facilitated.

The utility model discloses a combing cylinder front area tooth pitch automatic adjusting device which comprises a cylinder body, a needle tooth frame is arranged on the right side of the cylinder body, and fixed needle teeth are arranged on the front side of the needle tooth frame. The rear cover is arranged on the rear side of the needle tooth frame, a positioning structure is arranged on the left side of the needle tooth frame, a protection chamber is installed on the rear side of the rear cover, a motor is installed in the protection chamber, an adjusting rod is arranged on the front side of the motor, a stabilizing frame is installed on the outer side of the adjusting rod, and a connecting plate is arranged on the front side of the stabilizing frame; the positioning structure comprises fixed needle teeth arranged on the left side of the needle tooth frame, and the fixed needle teeth are arranged at equal angles relative to the center of the needle tooth frame. According to the automatic adjusting device for the front area tooth pitch of the combing cylinder, the front area tooth pitch of the combing cylinder is automatically adjusted, the use occasion of the combing cylinder can be effectively improved, the working efficiency is improved, and meanwhile, the combing cylinder is positioned and installed, so that the connection stability of the combing cylinder can be enhanced.

The present invention describes a circular comb (6) for a carding machine for combing textile fibers, which is adapted to be mounted on a carding machine shaft that can rotate about an axis (W). The circular comb (6) has a body (15) that carries a combing set (17) and a weight compensation element (16) that is attached to the shaft (5) by rotational engagement on the side of the shaft (5) opposite the combing set (17). After mounting on the carding machine, an adjustable support mechanism (30) exists between the body (15) and the weight compensation element (16), and the body (15) and the weight compensation element (16) are in direct contact with each other in several regions, allowing the body (15) and the weight compensation element (16) to change their positions relative to each other perpendicular to the axis (W), thereby adjusting the position of the combing tip (33) of the combing set (17).

The present invention relates a method for verifying the validity of a display value during a combing process in which a combing machine (1; 100) produces a combed sliver (3) from a material supply (4), wherein the combing machine (1; 100) has a number of combing heads (2), which each have a gripper apparatus (14), through which a lap (6) of the material supply (4) presented to the combing head (2) can be guided, a circular comb (21) for combing out noir (24) from fibre tufts of the lap (6) securely clamped by the gripper apparatus (14), and a bonding device (28) for forming an individual combing-head sliver (29) from the combed-out fibre tufts; a suction-extraction device (26) for extracting the noir (24); a compacting device (37) for bringing together the individual combing-head slivers (29) to form the combed sliver (3); an evaluation unit (56); a display device (57), coupled to the evaluation unit (56); and a detection device (55), coupled to the evaluation unit, for detecting an actual progression (74) of at least one detection variable that varies over time and can be assigned to the combed sliver (3) and / or at least one of the individual combing-head slivers (29), and wherein the method comprises the following steps, which are carried out during the process of combing the material supply (4): displaying the display value on the display device, wherein the display value reproduces a noir fraction assigned to a reference progression (64) stored in the evaluation unit; comparing the actual progression (74) of the at least one detection variable with the reference progression (64) by means of the evaluation unit; and, if the comparison shows that the actual progression of the at least one detection variable lies outside a predetermined tolerance zone (75) of the assigned reference progression (64), at least for a time, generating a warning signal (77) that the display value is invalid.

The utility model discloses a feeding mechanism of a combing machine, which relates to the technical field of combing machines and comprises a support plate and an auxiliary component, support vertical plates are mounted on two side surfaces of the support plate, fixed vertical plates are arranged on the upper surfaces of the support vertical plates, and the auxiliary component is arranged on the surface of the support plate. The auxiliary assembly comprises a cotton feeding plate, a connecting plate, an electric push rod, a movable guide plate, a fixing part, a limiting rotating shaft, a limiting sliding groove and a limiting sliding frame, the cotton feeding plate is arranged on the front surface of the supporting plate, the connecting plate is installed on the front side of the upper surface of the supporting plate, the electric push rod is arranged on the rear surface of the connecting plate, and the movable guide plate is installed on the front side of the electric push rod. According to the feeding mechanism, cotton layers can be pushed to advance in the cotton feeding process through the auxiliary assembly, the cotton layers are prevented from being stacked, the device can clean the cotton feeding roller in time through the cleaning assembly, and the normal cotton feeding operation of the device is affected due to the fact that excessive cotton adheres to the surface of the cotton.

The invention relates to a shaftless detaching roller (100) for a comber (200), comprising a hollow cylinder (110), a rubber layer (120) provided on an outer surface of the hollow cylinder (110), and a coupling element configured to be inserted into the hollow cylinder (110).

The invention relates to a method for checking the validity of displayed values during a combing process, in which a combing machine (1; 100) generates a combing strand (3) from a material supply (4), the combing machine (1; 100) has a plurality of combing heads (2), each of which has a nipper mechanism (14) through which a cotton layer (6) supplied by a material supply (4) to the combing heads (2) can be guided, a circular comb (21) for combing out combed noils (24) from a fiber tuft of the cotton layer (6) clamped by the nipper mechanism (14), and a reinforcing device (28), the reinforcing device is used for forming a single combing head strand (29) from the combed fiber tufts; a suction device (26) for sucking the combed noil (24); a compression device (37) for integrating the individual combing head slivers (29) into the combing slivers (3); an evaluation unit (56); a display device (57) coupled to the evaluation unit (56); and a detection device (55), which is coupled to the evaluation unit, for detecting an actual change process (74) of at least one detection variable that varies over time and can be assigned to at least one of the combing slivers (3) and / or the individual combing slivers (29), the method comprises the following steps carried out during a combing process of the material supply (4): displaying a display value on a display device, the display value representing a combed noil portion, the combed noil portion being assigned to a reference change process (64) stored in an evaluation unit; comparing the actual change process (74) of the at least one detected variable with the reference change process (64) by means of the evaluation unit; and generating a report signal (77) that the display value is ineffective if the comparison indicates that the actual change process of the at least one detected variable lies at least temporarily outside of the predetermined tolerance range (75) of the assigned reference change process (64).

The utility model discloses a comber with an adjustable counterweight plate, which comprises a comber frame, two sides of the top of the comber frame are fixedly connected with side support plates through fixing plates, and the lower parts of the opposite sides of the two side support plates are provided with turnover notches penetrating to the other sides. The top of the overturning notch is provided with a balance weight adjusting mechanism, and the balance weight adjusting mechanism comprises two inclined plane supporting plates. According to the combing machine with the adjustable balance weight plate, a transverse rotating rod is installed on one side of a side supporting plate through a slope supporting plate, a butt joint sleeve and a balance weight plate body are arranged at the two ends of the transverse rotating rod, the transverse rotating rod is used in cooperation with a buckle, and due to the structural arrangement, the balance weight plate body can be driven to rotate by rotating the buckle; and therefore, the weight point of the counterweight plate is changed, the equipment can be more stable during operation, vibration and overall noise are reduced, the current use requirement is met, and the practical functionality of the equipment is effectively improved.

The utility model relates to the technical field of combing textile technology, in particular to a wool feeding length adjusting device of a combing machine, which comprises a basic roller and a sleeve roller, the diameter of the basic roller is 22-25mm, the inner diameter of the sleeve roller is the same as the diameter of the basic roller, and the diameter of the sleeve roller is 28-32mm. A basic roller with the diameter ranging from 22 mm to 25 mm is designed to be used for feeding cotton wool of short fibers. In addition, a sleeve roller with the diameter ranging from 28 mm to 32 mm is arranged in a matched mode and used for feeding long-fiber cotton wool. The sleeve roller can be sleeved on the basic roller, so that when the wool feeding length needs to be adjusted, the sleeve roller only needs to be sleeved on the basic roller or the sleeve roller is detached from the basic roller, the operations of disconnecting the cotton feeding roller and a transmission gear, removing a transmission chain or a synchronous belt and the like are not needed, the adjusting operation is simple and convenient, and the wool feeding efficiency is improved. And the influence on the production rhythm and efficiency is greatly reduced.

The utility model relates to the technical field of wool processing equipment, in particular to a middle net speed regulating mechanism for a wool machine, which comprises a middle net box arranged in a combing head of the combing machine, middle net bodies are mounted at the upper port and the lower port of the middle net box, and the middle net body positioned at the upper part is detachably mounted at the upper port of the middle net box through an arc-shaped plate; during use, jet air flow generated by the fan is guided by the air guide plate and rushes out through the meshes in the rotary screen plate and the middle screen body, the meshes between the rotary screen plate and the middle screen body are driven by the first driving assembly to be staggered and partially overlapped, then part of air flow can be prevented from rushing out, and a uniform pressure environment is kept in a whole machining area; the second driving assembly drives the air guide plate to change the guiding-out direction of the air flow sprayed out of the draught fan, so that the air flowing direction and speed are changed, it is guaranteed that the air flow is stable, the air flow is guided to advance along an expected path to a certain degree, then the turbulent flow phenomenon is avoided, and the wool combing quality is guaranteed.

The utility model relates to the field of secondary roller cleaning devices, in particular to a secondary roller cleaning device of a combing machine, which comprises a working bottom plate, a conveying plate, a movable sliding block, an iron cleaning cross rod, a support frame, an air suction strip and a cleaning and wiping leather ring, two sets of movable sliding blocks are slidably connected into the adjusting limiting groove plate, an iron cleaning cross rod is connected between the two sets of limiting clamping blocks, a supporting frame is fixedly installed on one side of each movable sliding block, an air suction strip is fixedly installed in the assembling groove plate, and a cleaning and wiping leather ring is connected between the two sets of assembling ring sleeves. According to the cleaning device, the iron cleaning cross rod and the cleaning and wiping leather ring are utilized, the cleaning area of the cleaning and wiping leather ring on the surface of the roller is large, the elasticity of the leather ring is large, cleaned fibers can be sucked away by suction air in time, the material of the leather ring is not easy to damage and high in wear resistance, and the cleaning cross rod is not easy to bend under the condition that the roller is wound due to the iron cleaning cross rod, so that the cleaning device is convenient to use. The cleaning effect is good, and the cotton sliver quality is guaranteed.

The present invention relates to a method for operating a combing machine for spinning preparation, comprising at least one combing head (100) with a rotatingly driven circular combing roller (1) over which a fiber strand (10) is guided in periodic succession for combing, with an upper gripper (2) and a lower gripper (3) between which the fiber strand (10) to be combed is clamped and released in periodic succession, and with a rotatingly driven front break-off roller (4) and a rotatingly driven rear break-off roller (5), wherein the fiber strand (10) is separated in periodic succession by the front break-off roller (4) by moving the upper and lower gripper (2, 3) back and forth relative to the break-off rollers (4, 5) and the break-off rollers (4, 5) performing a stepping motion, wherein the rotational movements of the break-off rollers (4, 5) are synchronously controlled relative to each other by means of a control unit (11). become.According to the invention, the control unit (11) controls the front tear-off roller (4) and / or the rear tear-off roller (5) depending on programs (P1, P2, P3) selectable by an operator, wherein the selectable programs (P1, P2, P3) include at least: - a first program (P1) according to which a maximum output quantity of combed fiber strand (10) is produced and / or - a second program (P2) according to which a maximum quality of the combed fiber strand (10) is produced and / or - a third program (P3) according to which a minimum energy per quantity of combed fiber strand (10) is required.

The invention relates to a combing machine and a method for operating a combing machine, comprising several combing heads (20), wherein at least one wadding strip (4) is unwound from a wadding roll (1) at each combing head (20) and fed to a feed cylinder (9) and a gripper assembly (5), the combed pieces are combed out of the wadding strip (4) and vacuumed away by means of fixed and round combs (11, 10), and the resulting fiber pile is formed into a fiber strip which is stretched with the other fiber strips of the other combing heads to form a single fiber strip, wherein each gripper assembly (5) has an upper and lower gripper (6, 7), and the upper gripper (6) is pressed against the lower gripper (7) by at least one pressure element (24), characterized in that the pressure element (24) has at least one spring (30) whose force is adjustable.

The utility model belongs to the field of comber equipment, and particularly relates to a cover plate type cotton passing plate for a comber, which comprises a cotton passing plate body, a cover plate, a group of side plates and a group of L-shaped buckling plates, wherein the whole cotton passing plate body is of an isosceles trapezoid flat plate structure; the group of side plates and the cotton passing plate body are combined to form a U-shaped structure; a cotton passing channel is formed between the cover plate and the cotton passing plate body; the L-shaped buckling plate is buckled with the cover plate and the cotton passing plate body; according to the cover plate type cotton passing plate for the combing machine, the cover plate and the L-shaped buckling plate are connected into a whole, and on the basis that the installation holes are matched with the installation protrusions, the vertical parts are attached to the side plates, and the first folding parts are embedded between the side plates, the cover plate and the L-shaped buckling plate are combined into a whole. The cross-sectional area of the cotton passing channel formed by the cover plate and the cotton passing plate body is in a fixed state, and the situation that the cross-sectional area of the cotton passing channel is changed when the cotton passing plate swings is avoided.

The invention relates to a combing machine having a plurality of combing heads (20), wherein at least one lap strip (4) is unwound from a lap roll (1) at each combing head (20) and is fed to a feed cylinder (7) and a nipper assembly (5), the noils are combed out and removed by suction from the lap strip (4) by means of a fixed and cylindrical comb (9, 8), and the fiber web created is formed by means of a trumpet (15) into a fiber strip which is drawn with the other fiber strips from the other combing heads to form a single fiber strip. The invention is characterized in that a first pair of draw-off rollers (10, 12) and a second pair of draw-off rollers (11, 13) are arranged downstream of the nipper assembly (5) and carry out a pilgrim step movement, the rotational movement thereof being changeable in size and time profile by means of at least one drive independently from the movement of the nipper assembly so that a conveying path of the formed fiber web (14) is variably adjustable in the forward and reverse conveyance. The invention also relates to a method for operating a combing machine.

The present invention relates to a carrier (25) for a round comb (7) of a combing machine, comprising a comb support surface (26) for receiving a comb set (13) and at least one support surface (27) opposite the comb support surface (26) for supporting the carrier (25) on a round comb shaft (8), wherein the support surface (27) is designed as at least one pair of spring ribs (28; 29). A wear protection element (30; 31) is associated with the support surface (27).

The card wire of the present invention comprises a base portion and a blade portion. The height of the blade is greater than the height of the base portion. The blade portion has a plurality of identical tooth bodies. The tooth bodies extend longitudinally between two first recesses of the blade portion and extend up to the height towards the base portion. The plurality of tooth bodies are arranged at pitch intervals in the longitudinal direction. A first tooth tip and at least one second tooth tip are provided on each tooth body. The first tooth tip is adjacent to the first recess and faces in the direction of the first recess. All first and second tooth tips face in the same direction. The card wire is characterized in that, in each tooth body, the first tooth tip and the second tooth tip furthest from the first tooth tip are arranged in the tooth tip space at a spacing of less than 50% of the pitch.

the invention relates to a combing machine, designed for producing combed fibres, comprising at least one combing head (20) with a feed device, wherein the combing head (20) has at least one feed cylinder (7), which is designed to supply fibres that are connected to one another from the feed device to a nipper assembly (5), which is designed to clamp the interconnected fibres, as well as comprising at least one pair of pull-off rollers (10, 12; 11, 13) which is designed to pull the clamped fibres out of the nipper assembly (5), wherein each pair of pull-off rollers (10, 12; 11, 13) has a pull-off roller (10, 11) that is driven from both sides by a drive, wherein the pull-off roller (10, 11) that is driven from both sides has a separation point (35) or the pull-off roller (10, 11) is formed by two separate segments, such that the pull-off roller (10, 11) can be driven on both sides in a different rotational direction. The invention is characterised in that the separation point (35) is formed in the region of a mounting point, or in that the two separate segments are mounted together in the region of a mounting point.

The utility model belongs to the technical field of combing machines, and particularly relates to a tenon-and-mortise type cotton feeding roller device of a combing machine. Comprising a cotton feeding roller, a shaft sleeve, a first cotton feeding ratchet wheel, a second cotton feeding ratchet wheel, tenons and mortises, a connecting shaft is arranged in the cotton feeding roller in a penetrating mode, the first cotton feeding ratchet wheel and the second cotton feeding ratchet wheel are provided with connecting holes corresponding to the connecting shaft, the tenons are fixedly arranged at the two ends of the connecting shaft, and the mortises are formed in the centers of the first cotton feeding ratchet wheel and the second cotton feeding ratchet wheel. The mortise and the tenon are in clearance fit, and the section contour line of the mortise and the section contour line of the tenon are both formed by two opposite straight line sections and two opposite arc line sections in an encircling mode. By arranging the tenon and the mortise which cannot rotate mutually, when the first cotton feeding ratchet wheel and the second cotton feeding ratchet wheel drive the cotton feeding roller to operate, slipping of the first cotton feeding ratchet wheel, the second cotton feeding ratchet wheel and the cotton feeding roller can be avoided, it is guaranteed that the first cotton feeding ratchet wheel and the second cotton feeding ratchet wheel rotate synchronously, and normal cotton feeding of the cotton feeding roller is guaranteed.