CN116601346B - Combing machine and method for operating a combing machine - Google Patents
Combing machine and method for operating a combing machineInfo
- Publication number
- CN116601346B CN116601346B CN202180084617.4A CN202180084617A CN116601346B CN 116601346 B CN116601346 B CN 116601346B CN 202180084617 A CN202180084617 A CN 202180084617A CN 116601346 B CN116601346 B CN 116601346B
- Authority
- CN
- China
- Prior art keywords
- combing
- rollers
- detaching
- fibre
- pair
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G19/00—Combing machines
- D01G19/06—Details
- D01G19/14—Drawing-off and delivery apparatus
- D01G19/18—Roller, or roller and apron, devices, e.g. operating to draw-off fibres continuously
- D01G19/20—Roller, or roller and apron, devices, e.g. operating to draw-off fibres continuously operating to draw-off fibres intermittently
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Preliminary Treatment Of Fibers (AREA)
Abstract
本发明涉及一种精梳机和一种用于精梳纤维的方法，包括具有多个精梳头(20)的精梳机，其中，在每个精梳头(20)上从棉卷(1)退绕至少一个棉条(4)并且将棉条输送给给棉罗拉(7)和钳板机构(5)，借助顶梳和圆梳(9、8)从棉条(4)梳出并吸出精梳落棉，并且产生的纤维层借助喇叭口(15)变形成纤维条，该纤维条与其他精梳头的其他纤维条一起牵伸为唯一的纤维条。本发明的特征在于，在钳板机构(5)之后设置有第一对分离罗拉(10、12)和第二对分离罗拉(11、13)，其中，第一对分离罗拉(10、12)构造成，为了纤维须丛到纤维层(14)的接合和分离过程执行来回的旋转运动，并且第二对分离罗拉(11、13)构造成执行不变的旋转运动，从而在成对的分离罗拉(10、12和11、13)之间形成纤维层(14)的悬垂部(32)，所述悬垂部的长度在一个精梳循环内变化。
The present invention relates to a combing machine and a method for combing fibers, comprising a combing machine with a plurality of combing heads (20), wherein at least one sliver (4) is unwound from a cotton roll (1) on each combing head (20) and fed to a feeding roller (7) and a nipper mechanism (5), combing noil is combed out and sucked out from the sliver (4) by means of a top comb and a circular comb (9, 8), and the resulting fiber layer is transformed into a fiber sliver by means of a bell mouth (15), which is stretched together with other fiber slivers of other combing heads into a single fiber sliver. The present invention is characterized in that a first pair of detaching rollers (10, 12) and a second pair of detaching rollers (11, 13) are arranged behind the nipper mechanism (5), wherein the first pair of detaching rollers (10, 12) are configured to perform a back-and-forth rotational movement for the joining and separation process of the fiber bundle to the fiber layer (14), and the second pair of detaching rollers (11, 13) are configured to perform a constant rotational movement, thereby forming an overhang (32) of the fiber layer (14) between the paired detaching rollers (10, 12 and 11, 13), the length of the overhang varying within one combing cycle.
Description
Technical Field
The invention relates to a combing machine and a method for operating a combing machine.
Background
In conventional combing processes, for example, the halman combing process, cotton is pulled off the lap and fed to the nipper by means of a feed roller. In the retracted position of the nipper, the nipper is closed and holds a forward end section of cotton protruding from the nipper, which end section is in the form of a fiber bundle. The fiber cluster extending from the nipper is combed out by a circular comb arranged below the nipper. The nipper is then moved into a forward, open position, in which the detaching roller, by rotating backward, conveys the previously combed fiber fleece with its rear end section towards the front end section of the cotton clamped by the nipper. The fiber tufts that are combed out of the circular comb are applied to the downstream end section and are pulled together with the latter into the clamping position of the detaching roller, since the detaching roller in turn changes the direction of rotation. The rotation angle is about twice as large when so rotated as when previously rotated backwards, at which time the fiber mat separates from the cotton in the nipper mechanism. In this case, the rear end of the separated fiber tufts is pulled through the top comb.
In this case, the detaching rollers perform a Pierce-type movement (Pilgerschrittbewegung), wherein the detaching rollers return the ends of the fiber tufts pulled away in the preceding combing cycle when rotating in the opposite direction. The beginning of the fiber bundle is placed on this end and after reversal of the direction of rotation, it is joined by the pressure of two detaching rollers. In each combing cycle, the detaching rollers have to change their direction of movement not only twice, but also the path of rotation on return is shorter than in advance. For this movement of the detaching roller, eccentric discs, cam discs or cam grooves are often used, which are connected with a strong movement to the nipper via a transmission. In the case of side-by-side combing heads which are connected in a drive-train manner and whose combing cycle exceeds 400 times per minute, this back-and-forth Pierce-like movement of the detaching rollers places a considerable load on the shaft, which results in a large vibration of the combing machine and requires a large amount of energy. The drive motor of the detaching roller must perform quite well and a powerful servo frequency converter is also required to power the motor. Due to the continuous acceleration and deceleration, very high power losses are produced, which are reflected in the energy consumption of the combing machine and the electric motor must be water-cooled in the case of combing cycles exceeding 500 times per minute. Thus, the motor is quite expensive.
WO2013/182260A1 discloses a combing machine having a drive for producing a pilfer-type movement for the detaching rollers of the combing machine. The combing machine comprises a first electric motor rotating in a uniform motion and a second electric motor equipped with operating means which are subjected to a unidirectional law of motion with acceleration and deceleration phases. The first and second motors are engaged at any time and continuously rotate in the same direction. In this case, their rotational movements are combined by a differential device, so that a composite movement of the type of the Pierce format is achieved on the detaching roller. In order to increase the freedom of design of the motion profile of the detaching rollers and to achieve a higher efficiency of the combing machine, the second electric motor is a servomotor which converts a uniform motion of the first electric motor into a non-uniform rotary motion and is connected to an electronic control and/or regulating device.
Disclosure of Invention
Starting from this known prior art, the object of the present invention is to provide a combing machine and a method for combing out staple fibers, with which the aforementioned disadvantages are reduced.
The invention relates to a combing machine having a plurality of combing heads, wherein at least one sliver is unwound from a lap at each combing head and fed to a feed roller and a nipper mechanism, combed noil is combed out from the sliver by means of a top comb and a circular comb and the resultant fibre layer is deformed by means of a horn mouth into fibre strands which are drawn together with the other fibre strands of the other combing heads into a single fibre strand.
The invention comprises the technical teaching that a first and a second pair of detaching rollers are arranged after the nipper mechanism, wherein the first pair of detaching rollers are configured to perform a back and forth rotary movement for the engagement and detachment of the fiber fleece to the fiber layer, and the second pair of detaching rollers are configured to perform a constant rotary movement, so that a suspension of the fiber layer is formed between the pair of detaching rollers, the length of which suspension varies within one combing cycle. The overhang forms a material buffer of the fibre layer which compensates for the different rotational movements and rotational speeds of the detaching roller pairs without damaging the fibre tufts which are joined to the fibre layer. The overhang must be so long that no tensile stress or draft occurs on the joined fibrous layers. Depending on the amount of cotton fed and also on the diameter of the detaching roller. Thus, the first pair of detaching rollers can maintain the Pierce format motion, thereby maintaining the conventional combing process including nipper motion and the transmission. Only the movement and the driving pattern of the second pair of separating rollers are changed, wherein the pair of separating rollers have a constant rotation direction. The motor for the second detaching roller can be made smaller and not provided with water cooling, which makes the combing machine cheaper and more energy-efficient.
Accordingly, the combing process according to the invention is designed such that the fiber tufts are separated from the sliver by a back and forth rotary movement by means of a first pair of separating rollers arranged downstream of the nipper mechanism and the fiber tufts are joined to the fiber layer, wherein the downstream second separating rollers in the fiber transport direction perform a rotary movement which is constant in the fiber transport direction, wherein the length of the overhang of the fiber layer formed between the separating rollers in pairs varies within one combing cycle. Since the rotation directions and speeds of the pair of detaching rollers are different, by forming the overhang portion to create a material buffer portion with which it is possible for the rotation direction of the second detaching roller to be unchanged, although the first pair of detaching rollers continues to perform the picocell movement and the movement of the second pair of detaching rollers is thus reversed.
The rotational movement of the second detaching roller is preferably constant over all combing cycles. Thus, a simpler drive motor can be used for the second separating roller, which is designed as a servomotor with significantly lower drive power. Since the final advancing movement of the detaching roller pairs must be absolutely identical in order not to run out the size of the overhang, the drive motor of the first detaching roller and the drive motor of the second detaching roller must run synchronously. However, the drive motor for the second separating roller can be constructed more simply, with lower power and without active cooling.
Alternatively, the rotational movement of the second detaching roller during one combing cycle can be non-uniform with the same rotational direction. The second separating roller changes the rotation speed with the same rotation direction, thereby keeping the length of the overhang between the pair of separating rollers constant. Thus, the length of the overhang portion is reduced from pulsating formation between a maximum value and a minimum value.
Preferably, the overhang of maximum length is formed at a first reversal point of the first pair of separating rollers, from which point the separating rollers move the fibre layer again against the fibre transport direction towards the nipper mechanism.
Preferably, a suspension of minimum length is formed at a second reversal point of the first pair of separating rollers, from which the separating rollers again move the fibre layer away from the nipper mechanism in the fibre transport direction. In this case, the difference in rotation angle between the two pairs of separating rollers is still so large that no drawing load or drawing action is exerted on the fibre layer between the two pairs of separating rollers.
In a preferred embodiment, the overhang is formed at the beginning of the combing process by the first pair of detaching rollers being stationary and the second pair of detaching rollers performing a rotary motion against the fibre transport direction. The non-combed sliver is first guided downstream of the second separating roller by the nipper mechanism and guided to the take-off roller by the flare. The formation of the overhang can then be started by controlling the combing machine. Then, after starting the combing machine, the fibre sliver that was not combed at the time must be removed according to the length that was not combed.
Alternatively, the second separation roller may be stationary or only slowly rotated in the fiber transport direction, and the first separation roller conveys the non-combed sliver only in the fiber transport direction until the second separation roller receives the sliver and forms a overhang. In this case, the difference in rotational speed between the first and second split rollers is important when the rotational direction is unchanged.
After the formation of the overhang is completed, the first separation roller conveys the fiber layer in the fiber conveying direction, and the second separation roller reverses the rotation direction, and also conveys the fiber layer in the fiber conveying direction.
Preferably, the formation and the position of the overhang can be improved by means of a device in that the overhang is formed by means of an air flow between the upper detaching rollers or between the lower detaching rollers. In the case of combing cycles exceeding 500 times per minute, the formation of the overhang is a highly dynamic process, wherein small disturbances (for example due to adhesion of the fibers to the separating roller) may interrupt the process, or the resulting fiber layer may be uneven or damaged.
Drawings
Other measures for improving the invention are explained in more detail below with the aid of the figures together with a description of a preferred embodiment of the invention.
In the figure:
fig. 1 shows a schematic side view of a combing head of a combing machine according to the prior art;
fig. 2a shows a view of the motion of the detaching roller in the initial position according to the invention versus the motion profile;
Figure 2b shows a view of the motion of the detaching roller versus the motion profile during formation of the overhang or buffer according to the invention;
fig. 2c shows a view of the motion of the detaching roller as a function of the motion after forming the overhang or buffer according to the invention.
The prior art and the preferred embodiment of the combing machine according to the invention in fig. 2a to 2c are described with reference to fig. 1. Like features in the drawings are provided with like reference numerals. It is to be understood that the figures are only shown simplified, in particular not to scale.
Detailed Description
Fig. 1 shows a combing head 20 according to the prior art, at least eight combing heads being mounted on a combing machine. For clarity, this embodiment shows and describes only one combing head 20, with the details shown here being mounted on each of these combing heads, except for a common drive unit and coiler. The carding head 20 further comprises two lap transport rollers 2, 3, on which the lap 1 with the winding bobbin is placed and the sliver 4 is unwound from the winding bobbin by means of a feed roller 7 due to the tensile load. The lap transport rollers 2, 3 may be driven individually or both together. The construction of the lap transport rollers 2, 3, whether they are merely rotationally undriven or driven singly or both, is irrelevant to the invention.
The sliver 4 is transferred to a feed roller 7 of the nipper mechanism 5. The nipper mechanism 5 can be driven in a manner that it can be moved back and forth by means of a lever via a shaft 6, which is connected to a transmission mechanism 17. According to the example shown, the nipper mechanism 5 is located in a forward position and delivers the carded fibre fleece to a subsequent first pair of separating rollers 10, 12 in the fibre transport direction. A circular comb 8 is rotatably mounted below the nipper mechanism 5, which circular comb, via its needle plate seat, combs out the fibre tufts provided by the closed nipper. The circular comb 8 is likewise in driving connection with a transmission 17. A ratchet wheel, not shown, is fastened to the feed roller 7, which ratchet wheel is rotated stepwise by a pawl, also not shown, due to the reciprocating movement of the nipper mechanism 5 and thereby feeds the sliver 4 to the jaws of the nipper for carding out. In operation, the sliver 4 is continuously unwound as a result of the rotational movement of the fleece 1 by the fleece transport rollers 2, 3 and reaches the feed roller 7. Next, for carding, the cotton is fed to the nip of the nipper mechanism 5 by the feed roller 7 and then passed to the first pair of separating rollers 10, 12 in the fiber transport direction. The fiber tufts that meet here are finally pulled through the top comb 9 and engage with the preceding fiber tufts. The fibre layer 14 thus produced is transferred by means of the second separating rollers 11, 13 in the fibre transport direction. The fibre layer 14 produced here consists of individual bonded fibre strands, is pulled out of the bell 15 by means of the draw-off rollers 16 and is deformed into fibre strands 21, and is fed to a drawing device, not shown, together with fibre strands which are likewise formed on other combing heads. The fibre layers combed by the drafting mechanism are combined into fibre slivers, so-called combed slivers, and transferred to a coiler for winding in cans.
In the prior art, the nipper mechanism 5 is moved into a forward, open position, in which the detaching rollers 10, 12, by rotating rearward, convey the previously combed fiber fleece with its rear end section towards the front end section of the cotton nipped by the nipper. The detaching rollers 11, 13 perform the same movement, so that the fibre layer 14 moves a little backwards. The fiber tufts that are drawn out of the circular comb 8 are deposited onto the downstream end section and are pulled together with the latter into the clamped position of the detaching rollers 10, 12, since the detaching rollers 10, 12 and 11, 13 again change the direction of rotation. The rotation angle in this rotation is about twice as large as in the previous backward rotation, when the fiber tufts separate from the cotton in the nipper mechanism 5. In this case, the rear end of the separated fiber tufts is pulled through the top comb 9. In this case, the detaching rollers 10, 12, 11, 13 perform a Pierce-type movement (Pilgerschrittbewegung), wherein they return the ends of the fiber tufts pulled away in the previous combing cycle when rotating in the opposite direction. The beginning of the fiber bundle is placed on this end and after reversal of the direction of rotation, it is joined by the pressure of the two detaching rollers 10, 12. In each combing cycle, the detaching rollers 10, 12, 11, 13 have to change their direction of movement not only twice, but also the path of rotation on return is shorter than in advance.
Fig. 2a shows the initial state of the movement according to the invention of the detaching rollers 10, 12 and 11, 13 in a left-hand view, wherein the sliver 4 gripped by the nipper mechanism 5 enters the first pair of detaching rollers 10, 12 in the direction of fiber transport (arrow) and is arranged as a tensioned fiber layer 14 between the pair of detaching rollers 10, 12 and 11, 13. This initial state is introduced once at the beginning or at each start of the combing machine. In the motion diagram on the right associated therewith, the rotation angle of the detaching roller is plotted on the ordinate and the time is plotted on the abscissa. For example, in the motion profile, the combing machine is operated at 20 combing cycles per minute, so that one combing cycle lasts 3 seconds. Within the numerical range of 1 to 3, a combing cycle 30 is performed entirely. This means that in the motion diagram, the rotational movements of the paired detaching rollers 10, 12 and 11, 13 in the three combing cycles 30 are shown on the abscissa of 0 to 10, and the start of the combing machine at the start of forming the overhang (Schlaufe) 32 or buffer is shown in the range of 0 to 1. In the case of a combing cycle of 500 combing cycles per minute, 75 combing cycles with the same curve course are shown within 9 seconds, with the same pattern division. The movement of the second pair of separating rollers 11, 13 in the direction of transport of the fibers is shown in solid lines and the movement of the first pair of separating rollers 10, 12 is shown in broken lines. When the abscissa value is 0, the rotation angle of the two pairs of separation rollers 10, 12 and 11, 13 is 0 °. In this initial state, the detaching rollers 10, 12 and 11, 13 are stationary.
Fig. 2b shows a buffer or overhang 32 of the fibre layer 14 formed between the pair of detaching rollers 10,12 and 11, 13. Here, the first pair of separating rollers 10,12 is stationary and does not rotate, while the second separating rollers 11, 13 are rotated in this view by an angle of approximately-150 °, so that the overhang 32 is formed because the length exceeds the total 60mm distance of the separating rollers 10,12 and 11, 13 from each other. In the embodiment of fig. 2b, the overhang 32 is currently formed with a length of about 33mm with a rotation angle of 150 °. This position is shown in the motion profile at a value of 0.5 s. The size of the overhang 32 depends on the rotation angle of the detaching rollers 11, 13 and their diameters and can vary due to the type of combing machine. The adjustment of the return quantity of the detaching rollers 11, 13 (i.e. how much the second detaching rollers 11, 13 turn) is also dependent on the amount of feed provided at the nipper mechanism 5 and can thus be varied. In this embodiment the outer diameter of the lower rollers 10, 11 is about 25mm and the outer diameter of the upper rollers 12, 13 is about 24.5mm. In this case, only the detaching rollers 10 and 11 are driven, while the detaching rollers 12 and 13 are pressed onto the lower rollers 10 and 11 and are driven by friction by the lower rollers.
In fig. 2c, the cushioning or overhang 32 is formed almost entirely from the fibrous layer 14. At this point it is sufficient to initiate the combing process. The overhang 32 can be up to 60mm when the detaching rollers 11, 13 return 270 ° and thus sag in the form shown between the detaching rollers 10, 12 and 11, 13. The length of the overhang 32 then increases briefly and reaches its maximum in the difference in rotation angle between the first reversal point U1 of the detaching rollers 10, 12 and the continuous rotary movement of the detaching rollers 11, 13. The arrow in the motion diagram just shows the reversal point of the rotational motion of the detaching rollers 11, 13 or the starting point of the rotational motion of the detaching rollers 10, 12 again, while the detaching rollers 10, 12 are still stationary, but now start the rotational motion. The overhang 32 of the fibre layer 14 serves to compensate for the different rotational directions of the detaching roller pairs 10, 12 and 11, 13, i.e. in particular to compensate for the return of the first detaching roller pair 10, 12, in order to detach and subsequently engage the fibre fleece against the fibre transport direction. As can be seen from the motion profile, the first separating rollers 10, 12 also perform a conventional pierce-type motion according to the prior art, while the second separating rollers 11, 13 perform a linear rotary motion with a constant speed after the reversal of direction.
The rotational movement of the detaching rollers 10, 12 from the abscissa value 1s to the first reversal point U1 is in the direction of the fibre transport (arrow), i.e. towards the detaching rollers 11, 13, so that the sliver 4 is pulled off the detaching rollers 10, 12 and the engaged fibre fleece is compressed. The direction of rotation of the detaching rollers 10, 13 is reversed from the first reversal point U1 against the fibre transport direction, so that the combed-out end of the fibre fleece or the sliver 4 in this view is transported towards the clamping mechanism 5 in order to initiate a new joining process. The rotational movement of the detaching rollers 10, 12 returns almost 270 ° and the overhang 32 or the buffer decreases, so that the fibre layer 14 is arranged almost straight between the detaching rollers 10, 12 and 11, 13. The second reversal point U2 shows this because the distance in the motion curve of the graph between the detaching rollers 10, 12 and 11, 13 is minimal. After the second reversal point U2, the detaching rollers 10, 12 are again rotated in such a way that the fibre layer 14 is transported in the fibre transport direction (arrow) and the overhang 32 is enlarged again until the combing cycle 30 ends, wherein the fibre fleece is engaged and then detached from the nipper mechanism 5. The size or length of the overhang 32 is indicated by the outer circumference of the detaching rollers 10, 11 by means of a rotation angle difference 31 indicated by a vertical arrow between the curves of the detaching rollers 10, 12 and the detaching rollers 11, 13. In this motion profile, it can be seen that the detaching rollers 10, 12 with steep curves experience a rather high acceleration and deceleration, i.e. continuously changing the speed and the direction of rotation (pierce format). In this embodiment, the detaching rollers 11, 13 rotate at a constant speed in only one direction during the combing process. The detaching rollers 11, 13 are rotated backwards only when the combing machine is started, when combing is started, so that a first overhang 32 is formed.
The detaching rollers 11, 13 can be operated at a variable speed with a constant direction of rotation, wherein during the return of the detaching rollers 10, 12 between the first reversal point U1 and the second reversal point U2 the detaching rollers 11, 13 can be rotated slower and from the second reversal point U2 they can be rotated faster again. But finally the embodiments disclosed herein are in a form that is more energy efficient for the operation of the detaching rollers 11, 13.
The overhang 32 or buffer of the fibre layer 14 shown in fig. 2b and 2c is suspended here downwards between the detaching rollers 10 and 11. Depending on the air flow, a overhang 32 may also be formed between the detaching rollers 12 and 13. Air blown from above or below between the pair of detaching rollers 10, 12 and 11, 13 can promote the formation of the overhang because the spacing between the pair of detaching rollers 10, 12 and 11, 13 is quite small.
The advantage of the invention is that only the first pair of separating rollers 10, 12 performs a pi-type movement, while the second pair of separating rollers 11, 13 performs a constant rotational movement. Thus, the power consumption for driving the second detaching rollers 11, 13 is reduced, thereby reducing the energy consumption of the combing machine. For the second separating rollers 11, 13, the water cooling of the drive motor can be omitted and the drive motor design has a significantly lower drive power.
In order that the overhang 32 as a material buffer is not piled up or removed, the two detaching roller pairs 10, 12 and 11, 13 have to perform the same final advancing movement, i.e. the final rotation angle is the same. Depending on the type of construction of the combing machine, the overhang 32 can also be constructed smaller than in the described embodiment. This can be influenced by the spacing of the detaching roller pairs 10, 12 and 11, 13, their diameter, the amount of cotton fed and other factors.
According to the invention, the second separating rollers 11, 13 have a rotational movement in the same direction, i.e. a constant rotational movement, after the formation of the overhang 32. The rotational movement can preferably have the same speed (constant rotational movement), whereby a better effect is achieved in terms of energy saving. However, the rotational movement of the second separating rollers 11, 13 can also vary in speed, whereby the formation of the overhang can be positively influenced and the resulting fibre layer 14 can be made more uniform.
List of reference numerals
1. Cotton roll
2. Cotton roll transporting roller
3. Cotton roll transporting roller
4. Sliver
5. Clamp plate mechanism
6. Shaft
7. Cotton feeding roller
8. Round comb
9. Top comb
10 Separating roller
11 Separating roller
12 Separating roller
13 Separating roller
14 Fiber layer
15 Horn mouth
16 Strip roller
17 Transmission mechanism
18 Motor
19 Control device
20 Combing head
21 Fibre strip
30 Combing cycle
31 Rotation angle difference
32 Overhang
U1 first inversion point
U2 second inversion point
Claims (17)
1. Combing machine with a plurality of combing heads (20), wherein at least one sliver (4) is unwound from a lap (1) at each combing head (20) and fed to a feed roller (7) and a nipper mechanism (5), from which sliver (4) combed and noil is sucked off by means of a top comb and a circular comb, and the fibre layer produced is deformed into fibre strips by means of a horn (15), which are drawn together with the other fibre strips of the other combing heads into a single fibre strip, characterized in that a first and a second split roller are provided after the nipper mechanism (5), wherein the first split roller is configured to perform a back and forth rotary movement for the joining and separating process of fibre tufts to the fibre layer (14) and the second split roller is configured to perform a rotary movement in a constant rotary direction, such that a overhang (32) of the fibre layer (14) is formed between the first and the second split roller, the length of which overhang varies within one combing cycle.
2. Combing machine according to claim 1, characterized in that the second detaching rollers are configured to feed the fibre layer (14) with a constant and constant rotary movement.
3. Combing machine according to claim 1, characterized in that the first pair of detaching rollers is configured such that, at the first reversal point (U1), a maximum-length overhang (32) is formed, from which the detaching rollers move the fibre layer (14) again against the fibre transport direction towards the nipper mechanism (5).
4. Combing machine according to claim 1, characterized in that the first separating rollers are configured so that at the second reversal point (U2) a suspension (32) of minimum length is formed, from which they move the fibre layer (14) again in the fibre transport direction away from the nipper mechanism (5).
5. Combing machine according to claim 1, characterized in that at the beginning of the combing process, the first pair of separation rollers are stationary and the second pair of separation rollers perform a rotary motion against the fibre transport direction, so that a overhang (32) is formed between the first pair of separation rollers and the second pair of separation rollers.
6. Combing machine according to claim 5, characterized in that, as the formation of the overhang ends, the first pair of separating rollers is configured to transport the fibre layer (14) in the fibre transport direction and the second separating rollers are configured to reverse the rotation direction and transport the fibre layer (14) in the fibre transport direction.
7. Combing machine according to claim 1, characterized in that the second detaching rollers are configured to run at different rotational speeds or speeds with a constant direction of rotation.
8. Combing machine according to claim 1, characterized in that each pair of detaching rollers is driven by means of a separate servomotor, wherein the servomotors are synchronized in order to produce the same final advancing movement.
9. Combing machine according to one of the claims 1 to 8, characterized in that a suspension (32) is formed between a lower one of the first and the second separating rollers or between an upper one of the first and the second separating rollers by means of a device for feeding air between the first and the second separating rollers.
10. Method for combing a sliver (4) with a combing machine having a plurality of combing heads (20), wherein the sliver (4) is unwound from a lap (1) at each combing head (20) and fed to a feed roller (7) and a nipper mechanism (5), from which sliver (4) is combed and sucked off by means of a top comb and a circular comb, and the resulting fibre layer (14) is deformed into fibre strips (21) by means of a horn mouth (15), characterized in that a first and a second separation roller are provided after the nipper mechanism (5), wherein the first separation roller separates and engages fibre tufts from the sliver (4) and onto the fibre layer (14) by means of a back and forth rotary movement, wherein the second separation roller performs a rotary movement in the fibre transport direction, wherein the length of the overhang (32) of the fibre layer (14) formed between the first and the second separation roller varies within one combing cycle.
11. Method for combing according to claim 10, characterized in that the rotary motion of the second detaching roller is constant over all combing cycles (30).
12. Method for combing according to claim 10, characterized in that the rotary motion of the second detaching roller is non-uniform within one combing cycle (30).
13. Method for combing according to claim 10, characterized in that a maximum length overhang (32) is formed at the first reversal point (U1) of the first pair of detaching rollers, from which the detaching rollers move the fibre layer (14) again against the fibre transport direction towards the nipper mechanism (5).
14. Method for combing according to claim 10, characterized in that a suspension (32) of minimum length is formed at the second reversal point (U2) of the first pair of detaching rollers, from which point the detaching rollers move the fibre layer (14) again in the fibre transport direction away from the nipper mechanism (5).
15. Method for combing according to claim 10, characterized in that a suspension (32) is formed at the beginning of the combing process in such a way that the first pair of detaching rollers are stationary and the second pair of detaching rollers perform a rotational movement against the fibre transport direction.
16. Method for combing according to claim 14, characterized in that, as the formation of the overhang ends, the first pair of separating rollers conveys the fibre layer (14) in the fibre transport direction and the second pair of separating rollers reverses the rotation direction and conveys the fibre layer (14) in the fibre transport direction.
17. Method for combing according to one of the claims 10 to 16, characterized in that a suspension (32) is formed by means of an air flow between a lower detaching roller of the first pair of detaching rollers and a lower detaching roller of the second pair of detaching rollers or between an upper detaching roller of the first pair of detaching rollers and an upper detaching roller of the second pair of detaching rollers.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021101809.9 | 2021-01-27 | ||
| DE102021101809.9A DE102021101809A1 (en) | 2021-01-27 | 2021-01-27 | Comber and method for operating a comber |
| PCT/EP2021/079186 WO2022161652A1 (en) | 2021-01-27 | 2021-10-21 | Combing machine and method for operating a combing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116601346A CN116601346A (en) | 2023-08-15 |
| CN116601346B true CN116601346B (en) | 2025-10-21 |
Family
ID=78413993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202180084617.4A Active CN116601346B (en) | 2021-01-27 | 2021-10-21 | Combing machine and method for operating a combing machine |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4284970B1 (en) |
| CN (1) | CN116601346B (en) |
| DE (1) | DE102021101809A1 (en) |
| WO (1) | WO2022161652A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021134212A1 (en) | 2021-12-22 | 2023-06-22 | Trützschler Group SE | Method of operating a combing machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204570122U (en) * | 2015-03-06 | 2015-08-19 | 象山康丽针织厂 | The auxiliary straight type cotton comber of concussion |
| CN107835872A (en) * | 2015-07-03 | 2018-03-23 | 里特机械公司 | Separate drive of the detaching rollers of the comber |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE243062C (en) * | ||||
| CH290842A (en) * | 1945-01-04 | 1953-05-31 | Cromer Hinson Odus | Method for combing textile fibers and combing machine for carrying out the method. |
| CN1090255C (en) * | 1996-03-29 | 2002-09-04 | 里特机械公司 | Detaching and piecing apparatus in combing machine |
| DE102012011030A1 (en) * | 2012-06-05 | 2013-12-05 | Trützschler GmbH & Co Kommanditgesellschaft | Device on a combing machine with a drive device for generating a pilgrim movement for the Abreißwalzen |
| JP2014034747A (en) * | 2012-08-09 | 2014-02-24 | Toyota Industries Corp | Detaching roller driving device in comber |
| IT201800001987A1 (en) * | 2018-01-26 | 2019-07-26 | Marzoli Machines Textile Srl | COMBING MACHINE |
| IT201800004119A1 (en) * | 2018-03-30 | 2019-09-30 | Marzoli Machines Textile Srl | COMBING MACHINE OF A SPINNING PREPARATION LINE AND WORKING METHOD |
-
2021
- 2021-01-27 DE DE102021101809.9A patent/DE102021101809A1/en active Pending
- 2021-10-21 CN CN202180084617.4A patent/CN116601346B/en active Active
- 2021-10-21 EP EP21798980.5A patent/EP4284970B1/en active Active
- 2021-10-21 WO PCT/EP2021/079186 patent/WO2022161652A1/en not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204570122U (en) * | 2015-03-06 | 2015-08-19 | 象山康丽针织厂 | The auxiliary straight type cotton comber of concussion |
| CN107835872A (en) * | 2015-07-03 | 2018-03-23 | 里特机械公司 | Separate drive of the detaching rollers of the comber |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102021101809A1 (en) | 2022-07-28 |
| EP4284970A1 (en) | 2023-12-06 |
| EP4284970B1 (en) | 2025-07-23 |
| WO2022161652A1 (en) | 2022-08-04 |
| CN116601346A (en) | 2023-08-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101333705B (en) | Device for fibre finishing or fibre selection of fibre bundles containing textile fibres | |
| JP5280751B2 (en) | Apparatus for classifying or selecting fiber bundles with textile fibers, especially for combing | |
| CN101333701B (en) | Apparatus and method for the fibre-sorting or fibre-selection of a fibre bundle comprising textile fibres | |
| JP5341408B2 (en) | Apparatus for fiber sorting or fiber selection, in particular combing, of fiber bundles comprising textile fibers fed to a fiber sorting device by a feeding device, in particular to a combing device | |
| JP2763968B2 (en) | Method of joining lap in lap processing machine and lap processing machine | |
| CN116601346B (en) | Combing machine and method for operating a combing machine | |
| JPH108329A (en) | Combing machine equipped with a detaching and piecing device | |
| CN111936682B (en) | Combing machine | |
| CN101445976B (en) | Digitized discrete cell driving combing machine | |
| CN115803485B (en) | Method for operating a combing machine for textile preparation and combing machine | |
| CN117083424A (en) | Combing machine and method for operating the combing machine | |
| CN104593913B (en) | A kind of web suction nozzle and its combing machine of application | |
| CN118043509A (en) | Combing machine and method for operating a combing machine | |
| CN118434924A (en) | How to operate a combing machine | |
| CN116607265A (en) | Production process of single-layer non-woven fabric with strip-shaped fibers |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |