CN102995171A

CN102995171A - Combing machine with variable speed circular comb

Info

Publication number: CN102995171A
Application number: CN201210345733XA
Authority: CN
Inventors: 吉罗拉莫·普兰迪尼
Original assignee: Marzoli SpA
Current assignee: Marzoli SpA
Priority date: 2011-09-16
Filing date: 2012-09-17
Publication date: 2013-03-27
Anticipated expiration: 2032-09-17
Also published as: BR102012022912A2; EP2570525B1; BR102012022912B1; BR102012022912B8; EP2570525A3; CN102995171B; EP2570525A2; ITBS20110124A1

Abstract

A combing machine envisages, between a motor (21) and a circular comb (20), a transmission device (30) having in input a motor shaft (36) with angular input speed (Win) and in output a driven shaft (19) with angular output speed (Wout), engaged with the circular comb (20). The ratio (R) between the angular output speed (Wout) and the angular input speed (Win) being defined, said ratio is variable depending on the angular position (alpha) of the circular comb and is between 1.55 and 0.45. In particular the ratio (R) depending on the angular position (alpha) is defined by the graph shown in figure 7 .

Description

Combing machine with speed change circle comb

Technical field

The present invention relates to a kind of for the treatment of the combing machine that spin journey (spining line) of fiber with the acquisition yarn.

Background technology

On the fiber process line for the manufacture of yarn, after the starting stage of opening and cleaning fiber, carry out carded with carding machine (carding machine), then, fiber shows as the form of net.

Upper in conjunction with various independently nets with the processing (if any) that forms lap (lap) afterwards at lapper (lap-winder), by this net of combing machine combing or lap, to obtain to have made the wherein very clean and parallel net of fiber.

Comb the execution combing by circle, come the head of the coma (tuft) of combing lap with the circle comb, and by friction clamp comb execution combing, comb the afterbody of the same coma of combing lap with friction clamp.The coma of combing is supplied to tears roller, tear the downstream that roller is positioned at comb section, so that imbricate.The net that forms is continuously proceeded subsequent treatment.

Provide the continuous rotation motion to the circle comb, its alternating movement with pincers is synchronous, structurally it is not disturbed.

Therefore, it is very favorable that the circle comb has speed variable, thereby when near pincers are being torn roller, (justifying to comb and dallying thus), rotate slower, when circle comb noil (pincers are thus away from tearing roller), and when tear roller will before the coma of combing mobile with a new overlaid time backward, rotate faster.By doing like this, optimized regularly, reduced the dynamic rate of motion, particularly tear the dynamic rate of the motion of roller, and always special concern avoids the structure between circle comb and the pincers to disturb.

The solution that has the circle comb with speed-changing rotation motion.For example, an embodiment has been described in the applicant's International Application No. WO 2011/073942.

Summary of the invention

The objective of the invention is, make a kind of combing machine with speed change circle comb, it has the law of motion that allows to carry out best combing, and, keep high-grade functional reliability and kept being used for realizing the high-grade reliability of the mechanical part of this law.

This purpose realizes by a kind of combing machine.This combing machine comprises :-at least one pair of is torn roller, is suitable for the rotation of alternating movement ground;-pincers are suitable between a front position and a rear position a pair ofly tearing the roller execution and seesawing with respect to described, and in described front position, the nearly described roller of described cramp joint also is positioned in the zone that engages with described roller, and in described rear position, described pincers are away from described roller;-circle comb moves with the motion of described pincers rotatably with the method for synchronization;-transmission device, its input have the motor shaft that can move rotatably with angle input speed Win, and its output has rotatable driven shaft, described rotatable driven shaft have angle output speed Wout and with described circle comb kinematics engage; Wherein, define the ratio R between described angle output speed Wout and the described angle input speed Win, described ratio can change according to the angle position alpha of described circle comb, and between 1.55 to 0.45.

Description of drawings

From the following description of being undertaken by limiting examples with reference to the accompanying drawings, will be apparent according to the feature and advantage of combing machine of the present invention, in the accompanying drawing:

Fig. 1 shows the diagram of the combing machine in the rear position that is in pincers, position and the round initial angle position corresponding (0 ° or 360 °) of combing after this;

Fig. 2 shows the diagram of the Fig. 1 in the front position that is in pincers, this front position with and Fig. 1 in the initial angle position corresponding (180 °) of the relative circle comb in position;

Fig. 3 shows the kinematic diagram according to combing machine of the present invention according to an embodiment;

Fig. 4 shows the transmission device according to the combing machine of an embodiment;

Fig. 5 shows transmission device according to the trend of the angle output speed of the position, angle of circle comb;

Fig. 6 shows transmission device according to the trend of the angle output acceleration of the position, angle of circle comb;

Fig. 7 shows angle output speed and transmission device according to the trend of the ratio of the angle input speed of the position, angle of circle comb.

The specific embodiment

Combing machine according to the present invention comprises fixed frame 2, pincers 4 and circle comb 20.

Pincers 4 comprise lower claw 6 and dewclaw 8.Pincers 4 further comprise the straight comb 10 of the afterbody that is suitable for the combing coma.

In addition, pincers 4 comprise the rotary feeding roller 12 that is supported by lower claw 6.

In pincers 4 downstream, be many to have alternately rotatablely move

tear roller

14,16.

Pincers 4 have seesawing of replacing.In the front position, pincers occupy processing region, and pawl 6,8 next-door

neighbours tear roller

14,16 and open.In the rear position of pincers, pawl 6,8 is positioned at far-end and closes with respect to tearing

roller

14,16, to clamp the net of being processed.

Circle comb 20 is connected rotatably with main shaft 18, and has continuous rotation and move.When circle comb 20 in the upstream of tearing roller closely by the time, in other words, during by processing region, its head at the coma of net operates.

Make rotatablely moving of circle comb 20 synchronous with the alternating movement that clamps 4, thereby when pincers were in the front position, in other words, when being in the processing region of tearing roller upstream next-door neighbour, comb section 20 was static (inactive), that is, be positioned at outside the processing region; When pincers were in rear position (pawl does not occupy processing region), comb section was arranged in described processing region and carries out the combing of the head of coma.

Combing machine further comprises the motor 21 that can apply angular speed and the motion 22 that rotatablely moving of motor 21 is passed to main shaft 18.

Motion 22 comprises transmission device 30, and the inhomogeneous circular motion that it is suitable for the uniform circular motion of input is changed over output is passed to main shaft 18 with it.

According to an embodiment, transmission device 30 comprises the batch (-type) driver, the batch (-type) driver of flat type particularly, it comprises the first noumenon or the motor body 52 that is connected rotatably with the motor shaft 36 with angle input speed Win, and the second body or the driven body 54 that are connected rotatably with the driven shaft 19 with angle output speed Wout.Driven body 54 for good and all engages with motor body 52.

Here, a kind of like this transmission device of term " batch (-type) driver " expression, wherein, motor body is comprised of one or more cams, and driven body is comprised of the plate that supports a series of rollers, described roller always with the coupling (shaped coupling) of cam forming shaped.

One (for example being motor body 52) in two bodies 52,54 is formed, to form a plurality of boss connected to one another.Another (preferably driven body 54) in two bodies 52,54 comprises the roller 64 that a plurality of angles separate, and wherein at least one engages with another body 52, to guarantee to transfer the motion to driven shaft 19.

Especially, make motor body 52 be arranged to (shaped), to guarantee that the speed change circular motion is passed to driven body 54, for example continuous circular motion.

Fig. 5 shows driven shaft 19(and the circle comb 20 in the illustrated embodiment thus) angle output speed Wout depend on (and thus circle comb 20) angle position alpha of motor shaft 36 and depend on that angle input speed Win(is constant and equal 500 rev/mins).

Maximum angular output speed (Wout) especially, less than 700 rev/mins, approximates greatly 670 rev/mins less than 800 rev/mins.

Minimum angle output speed Wout especially, greater than 300 rev/mins, approximates greatly 330 rev/mins greater than 200 rev/mins.

Fig. 5 also shows the angle output speed Wprior of known combing machine, draws with the combing machine of experimental technique in rival firms.

The angle output acceleration A out that Fig. 6 shows power transmission shaft 19 (and thus circle comb 20) depends on the angle position alpha.

Out is less than 1500rad/s for maximum angular output acceleration A ², minimum angle output acceleration A out is greater than-1500rad/s ²

Especially, maximum angular output acceleration A out is less than 1200rad/s ², for example, approximate greatly 1000rad/s ², and minimum angle output acceleration A out is greater than-1200rad/s ², for example, approximate greatly-1000rad/s ²

Fig. 6 also shows the angle output acceleration A prior of known combing machine, draws with the combing machine of experimental technique in rival firms.

Fig. 7 shows the angle output speed Wout of transmission device and the ratio R of angle input speed Win depends on the angle position alpha.

Maximum ratio R especially, less than 1.40, approximates greatly 1.35 less than 1.55.

Minimum ratio R especially, greater than 0.60, approximates greatly 0.65 greater than 0.45.

Fig. 8 also shows the ratio R prior of angle output speed and the angle input speed of known combing machine, draws with the combing machine of experimental technique in rival firms.

Innovation ground, so that can carry out especially effectively combing, wherein, in the process in activity (active, effect) stage of circle comb, angular speed is not very high, so that fiber can not be subject to excessively strong effect according to the transmission device of combing machine of the present invention.This has realized higher-quality final products.

Yet advantageously, the angle output speed of circle comb can experience limited variation in the combing cyclic process, so that the parts of kinematic system are subject to less inertia force.This has realized high-grade machine reliability.

It is evident that those skilled in the art can improve above-mentioned transmission device, to satisfy interim demand, still remain in the protection domain of following claim.

Claims

1. a combing machine (1) comprising:

-at least one pair of is torn roller (14,16), is suitable for the rotation of alternating movement ground;

-pincers (4), be suitable between a front position and a rear position carrying out and seesawing with respect to the described a pair of roller (14,16) of tearing, in described front position, the nearly described roller of described cramp joint also is positioned in the zone that engages with described roller, in described rear position, described pincers are away from described roller;

-circle comb (20) moves with the motion of described pincers rotatably with the method for synchronization;

-transmission device (30), its input has the motor shaft (36) that can move rotatably with angle input speed (Win), its output has rotatable driven shaft (19), and described rotatable driven shaft has angle output speed (Wout) and engages with described circle with combing (20) kinematics;

Wherein, define the ratio (R) between described angle output speed (Wout) and the described angle input speed (Win), described ratio can change according to the position, angle (α) of described circle comb, and between 1.55 and 0.45.

2. combing machine according to claim 1, wherein, described ratio (R) is between 1.40 and 0.60.

3. combing machine according to claim 2, wherein, described maximum ratio (R) is about 1.35, described minimum ratio (R) is about 0.65.

4. combing machine according to claim 1 wherein, limits the described ratio (R) that depends on position, described angle (α) by figure shown in Figure 7.

5. combing machine according to claim 1, wherein, described angle output speed (Wout) between 200 rev/mins and 800 rev/mins, preferably, between 700 rev/mins and 300 rev/mins.

6. combing machine according to claim 5 wherein, limits the described angle output speed (Wout) that depends on position, described angle (α) by figure shown in Figure 5.

7. combing machine according to claim 1, wherein, described angle output acceleration (Aout) is at 1500rad/s ²With-1500rad/s ²Between, preferably, at 1200rad/s ²With-1200rad/s ²Between.

8. combing machine according to claim 7 wherein, limits the described angle output acceleration (Aout) that depends on position, described angle (α) by figure shown in Figure 6.

9. combing machine according to claim 1, wherein, described transmission device comprises flat type batch (-type) driver (30).

10. combing machine according to claim 9, wherein, described batch (-type) driver comprises: driven body (54) or the second body, described driven body or the second body are equipped with the roller that the angle of rotatably loose installation separates; And the first noumenon (52), such as, motor body (52), described the first noumenon is connected rotatably with motor (21) and for good and all meshes with described driven body, and described driven body is provided with the boss that angle separates.