CN209508498U - A kind of cotton fiber drafting machine - Google Patents

Abstract

A cotton fiber drafting machine, comprising a main body support and a plurality of sets of roller seats arranged side by side on the main body support, each roller seat is respectively provided with an upper roller and a lower roller, and on the upper part of each group of roller seats is provided with a counter roller to apply pressure. The pressure regulating mechanism is equipped with a sliver conveyor belt on the entrance side of the first roller group, and the exit side of the roller seat at the end corresponds to the entrance of the fiber suction main pipe. There is a fiber collection rotor, the negative pressure box is connected to the fan through the pipeline, the fiber guide tube is set between the sliver conveyor belt and the first roller seat, and the fiber guide tube is provided between the adjacent roller seats. Compared with the existing drafting machine, the utility model can improve the working efficiency several times, and has the characteristics of simple operation, easy adjustment, good cotton fiber drafting effect and high working efficiency.

Description

A kind of cotton fiber drafting machine

technical field

The utility model relates to a cotton fiber drafting machine, which belongs to the technical field of textiles.

Background technique

Cotton fiber testing is an important testing item in the production process of textile enterprises, and its testing results are closely related to the formulation of textile technology. Before cotton fiber testing, the sliver needs to be stretched to straighten and smooth the sliver fiber. The fiber drafting machine is a device for straightening and smoothing the fibers. The traditional fiber drafting machine uses manual drafting, only one set of rollers is set, and a test sample needs to be drawn repeatedly more than ten times, and it takes about 1 hour to make a sample. , the labor intensity of the operator is high, and the work efficiency is low, so it needs to be improved urgently.

Utility model content

The purpose of the utility model is to provide a cotton fiber drafting machine which saves time and effort in operation, is accurate and convenient to adjust, and has good drafting effect.

Problem described in the utility model is realized with following technical scheme:

A cotton fiber drafting machine, comprising a main body support and a plurality of sets of roller seats arranged side by side on the main body support, each roller seat is respectively provided with an upper roller and a lower roller, and on the upper part of each group of roller seats is provided with a counter roller to apply pressure. The pressure regulating mechanism is equipped with a sliver conveyor belt on the entrance side of the first roller group, and the exit side of the roller seat at the end corresponds to the entrance of the fiber suction main pipe. There is a fiber collection rotor, the negative pressure box is connected to the fan through the pipeline, the fiber guide tube is set between the sliver conveyor belt and the first roller seat, and the fiber guide tube is provided between the adjacent roller seats.

In the above-mentioned cotton fiber drafting machine, the fiber guide tube is correspondingly installed between the upper and lower rollers of each roller seat. The fiber guide tube is composed of an outer tube and an inner tube with a stepped diameter reduction. The movement direction of the outer tube is the same, the outer wall of the large diameter of the outer tube is provided with an air inlet, the outer tube is provided with a stepped hole, the length of the inner tube is shorter than that of the outer tube, the outlet end of the inner tube is concave relative to the outer tube, and there is a gap between the outer tube and the inner tube. The diameter of the annular gap, the compressed air tubes are respectively connected with the air inlet of each fiber guide tube.

The above cotton fiber drafting machine, the pressure regulator includes a pressure adjustment motor, the pressure adjustment motor is connected to the pressure adjustment screw, the pressure adjustment screw is screwed with the pressure adjustment nut, a pressure sensor is provided at the lower part of the pressure adjustment nut, and the pressure adjustment nut is connected to the pressure rod , both ends of the pressure bar are connected to the shaft sleeve of the top roller shaft.

The above-mentioned cotton fiber drafting machine is provided with a length adjustment motor on the supporting body, the length adjustment motor is connected to the length adjustment screw, and a length adjustment nut is provided at the bottom of the end roller seat to cooperate with the adjustment screw screw, and the position of the roller seat at the head end is fixed. ; Adjacent roller seats are connected by a quadrilateral linkage mechanism.

In the above cotton fiber drafting machine, the outlet end of the inner tube of the fiber guide tube is provided with a conical shrinkage section, and the outer tube is provided with a conical shrinkage hole corresponding to the inner tube shrinkage section, and the shrinkage hole matches the taper of the shrinkage section.

Above-mentioned cotton fiber drafting machine, each roller seat bottom is provided with slide block, and guide rail is fixed on the main body support, slide block and guide rail sliding fit.

The utility model sets multiple groups of roller seats to carry out progressive drafting of cotton fibers, and the roller seats are connected by hinges, and the distance between the roller seats can be adjusted synchronously and at the same distance according to the fiber detection length; each group of roller seats is equipped with a Pressure adjustment mechanism to ensure the strength of each group of rollers to hold the fiber is appropriate; through the servo motor to control the speed of each group of rollers, to ensure that the speed of the head roller to the end roller increases step by step, so as to achieve the purpose of gradual drafting; guide fiber The structural design of the tube can ensure that the fiber travels smoothly under negative pressure suction without entanglement. Compared with the existing drafting machine, the utility model can improve the working efficiency several times, and has the characteristics of simple operation, easy adjustment, good cotton fiber drafting effect and high working efficiency.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described.

Fig. 1 is the schematic diagram of the utility model;

Fig. 2 is the schematic diagram of fiber guide tube;

Fig. 3 is a schematic diagram of the pressure regulating mechanism.

The labels in the figure are: 1. Sliver conveyor belt, 2. Fiber guide tube, 2-1, Inner tube, 2-2, Outer tube, 2-3, Air inlet, 3. Roller seat, 4. Pressure regulating mechanism , 4-1, motor mounting plate, 4-2, pressure adjustment motor, 4-3, pressure adjustment screw, 4-4, pressure adjustment nut, 4-5, pressure sensor, 4-6, pressure rod, 4-7 , shaft sleeve, 5, top roller, 6, bottom roller, 7, compressed air pipe, 8, fiber, 9, length adjustment motor, 10, fiber suction main pipe, 11, negative pressure box, 12, fiber collection rotor, 13 , fiber receiving motor, 14, length adjustment screw rod, 15, blower fan, 16, quadrilateral linkage mechanism, 17, guide rail, 18, main body support, 19, servo motor.

Detailed ways

Referring to Fig. 1 and Fig. 3, the utility model comprises a main body support 18 and an array of roller seats 3 arranged side by side on the main body support, each roller seat is respectively provided with an upper roller 5 and a lower roller 6, wherein the lower roller is a driving roller, The bottom roller is connected with the drive of the servo motor 19, and the setting number of the roller seat is determined according to the fiber drafting requirements. The speed of each group of rollers is controlled by the servo motor whose speed is controlled by PLC, so as to ensure that the speed of the head rollers to the end rollers increases step by step, so as to achieve the purpose of drafting fibers. The top of each group of roller seats is provided with a pressure regulating mechanism 4 that exerts pressure on the top rollers, and adjusting the pressure regulating mechanism can control the holding force of the rollers to the fibers. The pressure regulator includes a pressure adjustment motor 4-2, the pressure adjustment motor is installed on the motor mounting plate 4-1, the pressure adjustment motor is driven and connected to the pressure adjustment screw 4-3, the pressure adjustment screw is screwed with the pressure adjustment nut 4-4, and the pressure Adjusting nut bottom is provided with pressure sensor 4-5, and pressure adjusting nut connects pressure rod 4-6, and pressure rod two ends are respectively connected and installed in the shaft sleeve 4-7 of top roller shaft both sides. When the pressure adjustment motor rotates forward or reverse, the pressure adjustment screw rod can change the pressure acting on the top roller shaft through the pressure adjustment nut and the pressure rod. The signal of the pressure sensor is transmitted to the PLC, and the PLC controls the movement of the pressure adjustment motor to realize the automatic adjustment of the pressure and control the drafting pressure of the roller on the fiber.

Referring to Fig. 1 and Fig. 2, a sliver conveyor belt 1 is provided on the entrance side of the first roller group, and the exit side of the roller seat located at the end (the right end of Fig. 1) corresponds to the entrance of the fiber suction main pipe 10, and the outlet probe Into the negative pressure box 11, in the negative pressure box is provided with the fiber take-up rotor 12 for winding up the fiber after drafting, and the fiber take-up rotor is driven by the fiber take-up motor 13 to rotate. Negative pressure box is connected blower fan 15 through pipeline, and fiber guide tube 2 is provided between the sliver conveyor belt and the roller seat positioned at the head end (left end among Fig. 1), and fiber guide tube is provided between adjacent roller seats. The fiber guide tube is used to conduct and transport the fiber 8, and the fiber guide tube is correspondingly installed between the upper and lower rollers of each roller seat. The fiber guide tube designed by the utility model is composed of an outer tube 2-2 with a stepped diameter reduction and an inner pipe 2-1 with a stepped diameter reduction. The installation mode of the fiber guide tube is consistent with the movement direction of the fiber 8 from the large diameter to the small diameter. An air inlet 2-3 is arranged on the large-diameter outer wall of the outer pipe, and the air inlet is arranged radially. There is a stepped hole in the outer tube. The large diameter end of the inner tube is matched with the inner tube of the outer tube. The length of the small diameter end of the inner tube is shorter than that of the outer tube. The outlet end of the inner tube is concave relative to the outer tube. There is a variable-diameter annular gap, and the compressed air pipe 7 communicates with the air inlet of each fiber guide tube, and the compressed air is sent into the air inlet. The outlet end of the inner tube of the fiber guide tube is provided with a conical constriction section, and the outer tube is provided with a conical constriction hole corresponding to the constriction section of the inner tube, and the constriction hole matches the taper of the constriction section. In the above structure, the compressed air enters the large-diameter chamber of the annular gap between the inner pipe and the outer pipe through the air inlet, the variable diameter structure of the annular gap and the outlet structure of the inner pipe and the outer pipe allow the compressed air to enter the annular chamber from the air inlet Finally, high-speed flow through the nozzle, this high-speed airflow creates a negative pressure zone at the inlet of the inner tube, and the cotton fiber is sucked into the inner tube from the front rollers and delivered to the lower rollers.

Referring to Fig. 1, the supporting body is also provided with a length adjustment motor 9, the length adjustment motor is connected to the length adjustment screw 14, the lower part of the roller seat at the end is provided with a length adjustment nut screwed with the length adjustment screw rod, and the position of the roller seat at the head end is fixed. , are connected by a parallelogram linkage 16 between adjacent roller seats. With the above structure, when the length adjustment motor rotates, the length adjustment screw, the length adjustment nut and the effect of the parallelogram linkage mechanism make the roller seats be adjusted synchronously and at the same distance, and the adjustment process ensures the distance between the roller seats. For each roller seat moves smoothly in the adjustment process, each roller seat bottom is provided with slide block, and guide rail 17 is fixed on the main body support, slide block and guide rail sliding fit.

The utility model is used in conjunction with the fiber detection device. Before the detection, the sliver to be detected is sent to the roller seat through the sliver conveyor belt, and the sliver with messy fibers is drawn into a fiber through the sequential drafting of each group of roller groups. The straight slivers are wound into spindles and then tested accordingly.

Claims (6)

1. a kind of cotton fiber drafting machine, it is characterised in that: including number body supports (18) and be disposed side by side in body supports It organizes roller stand (3), is respectively equipped with top roller (5), bottom roll (6) on each roller stand, be equipped on every group of roller stand top to upper The pressure regulating mechanism (4) of roller pressure is equipped with sliver conveyer belt (1) positioned at the first roller group entrance side, positioned at end The corresponding entrance for inhaling fine supervisor (10) of the outlet side of roller stand, the outlet for inhaling fine supervisor probes into negative pressure box (11), in negative pressure box Equipped with fine revolving cup (12) is received, negative pressure box connects blower (15) by the road, is equipped between sliver conveyer belt and the first roller stand and leads fibre It manages (2), is equipped between adjacent roller stand and leads fine pipe.

2. cotton fiber drafting machine according to claim 1, it is characterised in that: lead fine pipe correspondence and be mounted on each roller stand It between upper and lower roller, leads fine pipe and is made of the outer tube (2-2) of stairstepping variable diameter and inner tube (2-1), lead fine pipe by major diameter to small Diameter is consistent with the direction of motion of fiber (8), and the major diameter outer wall of outer tube is equipped with air inlet (2-3), sets stepped hole in outer tube, Inner tube length is shorter than outer tube, and inner tube outlet end is with respect to outer tube indent, and there are the annular gap of variable diameter, compressions between outer tube and inner tube Air hose (7) is connected to the air inlet for respectively leading fine pipe respectively.

3. cotton fiber drafting machine according to claim 2, it is characterised in that: it includes pressure adjustment electricity that the pressure, which adjusts machine, Machine (4-2), pressure adjust motor connection pressure adjustment screw (4-3), pressure adjustment screw and pressure adjusting nut (4-4) spiral Cooperation, pressure adjusting nut lower part are equipped with pressure sensor (4-5), and pressure adjusting nut connects compression bar (4-6), and compression bar both ends connect Connect the axle sleeve (4-7) of roller shaft.

4. cotton fiber drafting machine according to claim 3, it is characterised in that: be additionally provided with length adjustment motor on supportive body (9), length adjustment motor connection length adjustment screw (14) is equipped with positioned at the lower part of end roller stand and matches with adjustment screw spiral The length adjustment nut of conjunction, the roller stand position positioned at head end are fixed；By quadrilateral connecting rod mechanism (16) between adjacent roller stand Connection.

5. cotton fiber drafting machine according to claim 4, it is characterised in that: the inner tube outlet end for leading fine pipe is equipped with cone Contraction section, outer tube corresponds to the shrinkage hole that internal tube shrinks section is equipped with cone, and shrinkage hole matches with the taper of contraction section.

6. cotton fiber drafting machine according to claim 5, it is characterised in that: each roller stand lower part is equipped with sliding block, main body branch Guide rail (17) are fixed in support, sliding block is slidably matched with guide rail.