Spinning preparation machine

Abstract

The apparatus (8, 20, 30, 60) on or in a spinning machine (1) has multiple cleaning sections (60), each having an associated opening roller (61). Each cleaning section (60) is designed to convey fibrous material along the axis of rotation of the associated opening roller (61) and, in this case, separate impurity material as the associated opening roller (61) rotates in a predetermined direction. The apparatus (8, 20, 30, 60) has a transfer section (8) for each pair of directly adjacent opening rollers (61). Each transfer section (8) is designed to transfer fibrous material conveyed by one opening roller (61) from one end of the one opening roller (61) to the opposite end of the other opening roller (61). The apparatus (8, 20, 30, 60) has an inlet (27) provided for conveying incoming fibrous material to the end of the first opening roller (61) opposite to the transfer section (8). The devices (8, 20, 30, 60) have an outlet (33) configured to convey fiber material from one end of the departing transfer section (8) of the last opening roller (61). The spinning apparatus (1) according to the invention includes the devices (8, 20, 30, 60).

Description

Technical Field

[0001] The present invention relates to a spinning machine in a spinning preparation area. Background Technology

[0002] Such spinning machines are known. These spinning machines are used to separate fibrous material (loose fibers, possibly containing other impurities) from impurities from upstream spinning machines and to loosen the loose fibers and further transport them to downstream spinning machines (such as blending machines), the upstream spinning machines being, for example, balers or heavy-duty separators for separating impurities from the fibrous material loosened by the baler, which may damage the downstream spinning machines.

[0003] EP 2554726B1 discloses an opening machine with a dust grid for separating impurities, such as seed coats or dirt, from the fiber material to be opened. Therefore, in the technical understanding, it is a cotton cleaner. This cotton cleaner includes a feeder. The feeder separates the incoming fiber-airflow, causing the two streams to impact the first opening roller at a relatively small distance from its center. The first opening roller, based on its rotation and existing guide elements along its outer periphery, transports the incoming fiber material from the impact position outward in opposite directions along its axis of rotation to both ends of the opening roller. The fiber material is then transferred to the corresponding opposite ends of a second opening roller. The second opening roller, based on its rotation and existing guide elements along its outer periphery, transports the fiber material transferred from the first opening roller inward from its ends in opposite directions along its axis of rotation to the center of the opening roller. The thus accumulated fiber material is then transferred to a downstream spinning machine through an outlet. In addition, a dust grid with an impeller gate located at the bottom is installed below each opening roller to separate the corresponding impurities. The disadvantages of this cotton cleaner are, firstly, the need for two transfer points between a pair of opening rollers, making the structure complex and expensive. Secondly, splitting the flow into two streams requires a separator, which further increases the structural cost. The two impeller gates further increase the machine cost. An air cushion is needed to divert the fiber flow at the first opening roller. If the air cushion breaks, it becomes impossible to estimate where the fiber material is moving. It is also known that the fiber material moves along the opening rollers with the aid of air. If the fiber material now accumulates at one end of the first opening roller, the air that has been flowing up will shift to the other end. This results in less or no air flowing towards the accumulated fiber material. As a result, the fiber material continues to accumulate in that direction, so that eventually only half of the first opening roller is effective. Besides the problem of material blockage, the production capacity of this type of cotton cleaner drops to half of its maximum capacity. Last but not least, this cotton cleaner consumes relatively much energy due to the multiple drive components. Summary of the Invention

[0004] The objective of this invention is to address the aforementioned drawbacks.

[0005] This task is addressed by the subject matter of the independent claims. Advantageous further extensions are given in the dependent claims.

[0006] According to the invention, a device is provided on or in a spinning machine. That is, the device can be integrated into or installed on the spinning machine as a component of the spinning machine. The device has multiple cleaning sections, each having an associated opening roller. Each cleaning section is designed to convey fibrous material in a corresponding transport direction along the rotation axis of the associated opening roller and, in this case, separate impurity material as the associated opening roller rotates in a predetermined direction. The device includes an associated transfer section for each pair of directly adjacent opening rollers of two cleaning sections. Each transfer section is designed to transfer fibrous material conveyed by one opening roller from one end of the opening roller to the opposite end of the other opening roller, i.e., after being cleaned by the opening roller, to the working range of the next opening roller. The device also has an inlet provided for conveying incoming fibrous material to the end of the first opening roller opposite to the associated transfer section, next to which only one opening roller is directly adjacent. Therefore, the fiber airflow reliably reaches the leading end of the first opening roller in the cleaning direction from the upstream spinning machine (such as a baler). The device also has an outlet configured to transport the fiber material from the end of the last opening roller away from the associated transfer section, next to which only one opening roller is directly adjacent. Thus, the cleaned fiber material exits the device again after passing through all the opening rollers. Consequently, the incoming fiber airflow is not diverted, and the aforementioned clogging problem does not occur. Furthermore, the device according to the invention ensures that the fiber material follows at least the same cleaning path as the cotton cleaner disclosed in EP 2554726B1, thus maintaining at least the same cleaning efficiency, certainly throughout the entire operating duration. Because there is only one transfer section between two directly adjacent opening rollers, the number of parts in the device is reduced, thus lowering costs and reducing structural layout. Furthermore, the elimination of sections for generating separating air cushions offers the same advantage. Additionally, full-volume flow can be used to transfer the material.

[0007] Each cleaning section preferably has a fiber guiding section designed to guide the fibers along the rotation axis of the associated opening roller and to discharge impurity material from the transport path along the associated opening roller. This is to prevent material blockage and facilitates operational safety.

[0008] For this purpose, at least one guide section may have guide sections arranged and / or constructed at intervals along the outer circumferential surface of the associated opening roller, such that the fibrous material is pushed towards the guide sections by the rotation of the associated opening roller and the centrifugal force acting on the fibrous material, and is deflected and / or intercepted in the corresponding transport direction due to the design of the guide sections. This facilitates the reliable transport of the material to be cleaned along the respective opening roller.

[0009] The guide section may therefore have ribs. These ribs each have a wall pointing against the transport direction of the respective opening roller, the wall extending at least partially toward the opening roller and viewed transversely to the corresponding transport direction at an acute or right angle. These ribs thus form a sliding ramp for material pushed outward from the opening roller due to centrifugal force and can therefore prevent clogging around the respective opening roller. Alternatively or additionally, such a wall extends at least partially from the front end to the rear end in the transport direction relative to the rotational direction of the associated opening roller. That is, these ribs extend, for example, spirally along the rotational axis of the respective opening roller and thus facilitate the movement of the material to be cleaned along the desired direction of movement of the associated opening roller.

[0010] Each of the aforementioned opening rolls may have spikes that are at an acute or right angle to the corresponding transport direction when viewed transversely. That is, these spikes can also be used to assist in material transport and prevent material blockage. Alternatively or additionally, these spikes also extend at least partially from the front end to the rear end in the transport direction relative to the rotation direction of at least one opening roll, i.e., in a spiral manner, bringing the advantages described regarding the ribs.

[0011] Alternatively or additionally, the transfer section may be at least partially constructed to be straight, without bends, and / or curved toward the opening rollers, at least on one side facing the two associated opening rollers. This helps to avoid material clogging, as fibrous materials are known to tend to accumulate at edges or bends.

[0012] Similarly, alternatively or additionally, for each pair of opening rollers, the distance between one opening roller and the ground on which the spinning machine is upright is greater than the distance between the corresponding other opening roller and the ground. That is, the height of the opening rollers decreases from the inlet to the outlet. This facilitates the transfer of material to be cleaned from one opening roller to the next one immediately following by gravity. The material to be cleaned is, to some extent, "fallen" into the working range of the subsequent opening roller due to the airflow.

[0013] In each of the aforementioned devices, preferably in at least one pair of opening rollers, the internal cross-section of the associated transfer section can decrease from one opening roller toward the other. This accelerates the flow of air along with the material it carries. This reduces the risk of material blockage, or especially fibrous material sticking to, for example, the walls of the transfer section.

[0014] Each of the aforementioned devices may have an associated chamber surrounding each opening roller. In each chamber, fibrous material is transported by the corresponding opening roller based on its rotation. Here, a transfer section is constructed as a channel and extends at one end into the chamber surrounding the one opening roller such that the fibrous material transported by that opening roller automatically reaches said end of the transfer section due to the rotation of the opening roller and the resulting centrifugal force acting on the transported fibrous material, as well as the existing volumetric flow (moving air and the fiber and impurity material contained therein). The transfer section extends at said other end into another chamber surrounding the other opening roller such that the fibrous material from one opening roller automatically reaches said other chamber due to its velocity. This ensures that the fibrous material reliably moves from one opening roller to the next. Furthermore, the chambers prevent material from exceeding the working range of the respective receiving opening rollers.

[0015] Here, the transition between the inner side of at least one of the two chambers facing the correspondingly surrounding opening roller and the transfer section is preferably constructed to be without bending, bringing the aforementioned advantages of a bend-free construction of the transfer section. The bend-free nature can be achieved by using rounded edges, which is simple and inexpensive to manufacture.

[0016] Alternatively or additionally, the device has a discharge section. The discharge section includes one discharge chamber for each chamber. Each discharge chamber opens at one end into a discharge conduit common to at least two directly adjacent chambers. At the corresponding other end of the respective discharge chamber, opposite to that end, a dust grid section is provided, which separates the respective discharge chamber from the associated, enclosed opening roller. The discharge conduit has an outlet connecting to a discharge pipe and a transport section. The transport section is designed and configured to transport material from the connected discharge chambers to the outlet. Due to the dust grid section, the discharge section is configured to discharge separated material from a fiber-airflow guided by the opening roller, which is received accordingly in the associated chamber. The advantage of this arrangement is that the separated material can be discharged centrally from the device. This reduces costs and simplifies the overall structure compared to two impeller gates.

[0017] The distance between one end of the outlet chamber and the ground is preferably smaller than the distance between the other end and the ground. Therefore, the separated material falls towards the outlet pipe.

[0018] Alternatively or additionally, at least one outlet section is configured to taper from its other end toward one end. This reliably guides the separated material toward the outlet conduit.

[0019] Similarly, alternatively or additionally, the outlet conduit can be constructed as a conduit open at both ends, with one end of the associated outlet chamber opening into the wall of the conduit forming a tubular cross-section. Such a conduit allows for the space-saving and low-cost removal of separated material from the device.

[0020] Here, the outlet section may have a conveyor wheel. The conveyor wheel is positioned in the outlet pipe such that its axis of rotation extends along the longitudinal extension and transversely to the inlet toward the connected chamber. The outlet section also includes a drive section. The drive section is designed to rotate the conveyor wheel. The outlet section may be constructed as an impeller brake. In this case, the outlet pipe is preferably open at both ends, i.e., on both end sides, and the conveyor wheel is constructed as an impeller. This allows for reliable discharge of the separated material. The outlet section may also be constructed as a worm gear brake. In this case, the outlet pipe is closed at at least one end, and the conveyor wheel is constructed as a worm gear. This allows for additional freedom in the placement of the outlet, which can also be located on the end side.

[0021] The spinning machine according to the present invention has one of the above-mentioned devices.

[0022] Spinning machines can be configured as cotton cleaners, multi-roller cotton openers, or feeders. Therefore, this invention is universally applicable.

[0023] If the device has the chambers described above, it is preferably specified that one chamber is bounded on one side by the housing wall of the spinning machine. This housing wall is in this case closest to the transfer section and has at least one through-hole. The at least one through-hole is constructed in the area of ​​each receiving opening roller. Because the material to be cleaned moves through the spinning machine and through the at least one transfer section at the opening roller by negative pressure, physically, the through-hole causes the resulting overpressure in the environmental area of ​​the relevant chamber to force air through the at least one through-hole into the interior of that chamber. This, in turn, creates an air cushion on the inner wall of the chamber with the at least one through-hole, which in particular prevents or at least hinders the adhesion of fibrous material. Therefore, the at least one through-hole functionally forms a leakage air opening. The forced-in air can come from the inlet side of the spinning machine, for example, air extracted from the incoming material flow by means of a cotton collector. Thus, the transfer section can also be spaced apart from the inner wall without the risk of material accumulation between the transfer section and the inner wall. Therefore, there is greater freedom in the arrangement of the transfer section within the spinning machine. Attached Figure Description

[0024] Other features and advantages of the invention will become apparent from the following description of preferred embodiments.

[0025] In the picture:

[0026] Figure 1 A cotton cleaning machine according to a first embodiment of the present invention is shown;

[0027] Figure 2 Showing from Figure 1 A vertical cross-sectional view from the back;

[0028] Figure 3 Show Figure 2 A magnified view;

[0029] Figure 4 Showing through Figure 1 The material flow in the cleaning section of the cotton cleaning machine;

[0030] Figure 5 Show Figure 1 The cleaning section of a cotton cleaner in the transfer area from one opening roller to another;

[0031] Figure 6 Show Figure 5 The right side of the cavity involves a portion of the guide rib;

[0032] Figure 7 Showing from Figure 1 A vertical cross-section viewed from the front;

[0033] Figure 8 Showing from Figure 1 A detailed view of the cotton cleaning machine from the front;

[0034] Figure 9 As shown in the plan view, it is similar to Figure 3 Cross-sectional view;

[0035] Figure 10 The cotton cleaning machine shown is similar to the second embodiment of the present invention. Figure 8 The view;

[0036] Figure 11 by Figure 10 The viewpoint shown from the lower right is as follows Figure 10 A view of the cotton cleaning machine;

[0037] Figure 12 by Figure 10 The lower center perspective shows about Figure 10 Horizontal cross-section of a cotton cleaning machine;

[0038] Figure 13 The cleaning section is shown with a slit-like through-hole in the machine housing, and

[0039] Figure 14 shows Figure 13 Two enlarged detail views of the cleaned section. Detailed Implementation

[0040] Figure 1 A spinning machine 1 in the form of a cotton cleaner according to a first embodiment of the invention is shown. The cotton cleaner 1 includes a housing 2, which contains the main operating components of the cotton cleaner. The housing 2 includes known guard plates, valves, and an unmarked frame not visible here.

[0041] A display 3 is installed on the front of the housing 2. The function of the display 3 is to make the operating status, operating progress, or production value visible to the outside world.

[0042] An inlet section 20 is located above the housing 2, which supplies fibrous material to two cleaning sections 60, described in detail later, all surrounded by the housing 2. A supply section 10 connects the inlet section 20 to a fiber-air supply device. In the illustrated example, the supply section 10 mainly consists of two pipes 12, 12 and a sensor 11 disposed between them. The sensor 11 is used, for example, to determine the velocity of the fiber-air flow. In the illustrated example, the right-hand pipe 12 leads into pipe section 22. Through pipe section 22, the incoming fiber-air flow is diverted to pipe section 23, which leads into pipe section 24 at its end furthest from pipe section 22. Pipe section 24, in turn, leads into air separator 26 at its end furthest from pipe section 23.

[0043] Air separator 26 is used to remove excess air (in extreme cases: all air) from the incoming fiber-air stream. The remaining material stream (possibly containing air-laden fiber material) is directed into a first cleaning section 60, which is surrounded by housing 2. Furthermore, motor 21, via fan 25 (described in detail later), diverts the fiber-air stream entering from right-hand duct 12 into either duct section 22 or duct section 23.

[0044] Pipe 28 is used to discharge the air separated by air separator 26 from cotton cleaner 1.

[0045] The housing 2 is supported here on four adjustable feet 5. The adjustable feet 5 are used in a known manner to level the cotton cleaning machine 1 on a vertical surface (the ground).

[0046] The cotton cleaning machine 1 also includes a discharge section 30 for the cleaned fibrous material. The discharge section 30 includes two pipes 31 and 32, between which a sensor 33 is disposed.

[0047] In addition, the outlet section 40 is provided as a pipe 41. The outlet section 40 is used to convey the material (dirt, seed coat, etc.) separated from the incoming fiber-airflow from the cotton cleaner 1.

[0048] Figure 2 Showing from Figure 1 A vertical sectional view from the rear. Here, the exposed... Figure 1 The back of the cotton cleaning machine 1. The inlet section 10 has also been removed. Thus, the pipe section 22 is clearly visible in this regard, and the aforementioned fan 25 can be seen.

[0049] Air separator 26 has a connecting pipe 27 at its outlet side, which in turn connects to the wall section 63 of the first cleaning section 60 through an opening 64. The wall section 63, together with a dust grid 62 disposed below it, defines a chamber 68 in which an opening roller 61 is configured to rotate freely in a known manner. Here, the opening roller 61 includes outwardly projecting, rod-shaped protrusions (not shown in detail) for actuating the fibrous material within the chamber 68.

[0050] Furthermore, the cotton cleaning machine 1 has a second cleaning section 60, which has a rear chamber 68, which is also surrounded by a wall section 63 and a second dust compartment 62. The rear chamber 68 has an opening on its upper side that is not visible here, and a connecting pipe 34 of the outlet section 30 enters the chamber on the inlet side. The connecting pipe 34 enters the aforementioned pipe 31 on the outlet side.

[0051] The fibrous material entering from the air separator 26 Figure 2 The material is preferably transported horizontally to the right from the opening roller 61 in front of it. To achieve this, a guide element 65, which will be described in detail later, is provided in the chamber 68. This guide element guides the fibrous material... Figure 2 The material is guided to the right horizontally. Here, impurities (stones, seed shells, etc.) are discharged through the dust grid 62 on the right. Below the dust grid 62, there is a discharge section 40, which includes a wall section 47 in the upper region facing the dust grid 62. The wall section 47, together with the impeller 42 of the impeller gate and the dust grid 62, each surrounds a (discharge) chamber 48.

[0052] In the example shown, the wall segments 47 are formed such that the cross-section of the correspondingly formed chamber 48 tapers toward the impeller 42. Two outer wall segments 47 are adjacent to wall segments 43 at the bottom. The wall segments 43 partially surround the impeller 42 and form an outlet conduit 44 below the impeller 42. The outlet conduit 44 is open toward the impeller 42. The interior of the outlet conduit 44 is hollow, thus forming an outlet space 45. During cleaning, impurity material falls through the dust filter 62 toward the impeller 42 into the chamber 48. The rotation of the impeller 42 causes the falling impurity material to be conveyed into the outlet space 45, and the chambers 48 are sealed to each other and to the outlet space 45.

[0053] Impeller 42 is constructed in a known manner, and its protrusions preferably have resilient sealing lips that abut against the wall sections 43, 47 or have a very small gap, so that impurity material is reliably transported into the outlet space 45.

[0054] Figure 3 Show Figure 2 An enlarged view is shown here. The arrangement of the guide elements 65 is particularly clear in the perspective view shown here. These guide elements extend at acute angles to the rotating surfaces of the corresponding opening rollers 61. Furthermore, the wall section 47 and its transition with the wall section 43 are clearly shown. As can also be seen, the guide elements 65 are missing in the areas of the openings 64 of the wall sections 63 facing the connecting pipes 27, 34. If the guide elements 65 are arranged in a different manner, they can also be constructed over the entire horizontal extension of the corresponding wall section 63. In addition, various arrangements of the guide elements 65 can be provided.

[0055] Figure 4 The material flow 4 is shown passing through the cleaning section 60 of the cotton cleaner 1. The fibrous material reaches the left chamber 68 via the connecting pipe 27, and is spirally transported toward the transfer section 8 (described later) by means of a guide element 65 (not shown here) and into the transfer section 8 based on centrifugal force acting on the chamber. Centrifugal force causes the fibrous material to automatically reach the area of ​​the right chamber 68. This is simplified by making the distance between the right chamber 68 and the vertical surface of the cotton cleaner 1 smaller than that of the left chamber 68. Thus, gravity can be utilized, and the fibrous material reaches the right chamber 68 less easily. An opening roller 61 (not shown here), along with the guide element 65, further spirally transports the fibrous material toward the connecting pipe 34. Here, impurity material is separated in both chambers 68 by a dust filter 65 (also not shown). Figure 4 In the middle, the support part 67 of the dust rod can be seen for the dust grid 62.

[0056] Figure 5The cleaning section 60 is shown in the transfer area from one opening roller 61 to another. Specifically, the transfer section 8 is particularly well visible here. Here, fibrous material is transferred from the right chamber 68 to the left chamber 68. On the back of the housing 2, windows 6 are provided above the opening roller 61 in the area of ​​chamber 68. These windows, together with guide elements 65, prevent fibrous material from accumulating between the transfer section 8 and the rear wall of the housing 2. The background is that the fibrous material is transported through the chambers 68 and the transfer section 8 under negative pressure. Due to the windows 6, overpressure acts towards the corresponding chamber 68. Given the presence of a pressure difference, air is not drawn in but forced from the overpressure area to the negative pressure area. Combined with this fact, it is clear that air always flows into the chambers 68 through the windows 6, causing the fibrous material that is lifted upwards on the right side of the right chamber 68 due to the counterclockwise rotation of the opening roller 61 to only reach the transfer section 8. The transfer section 8 is formed here by three pipe sections. The curvature of the middle pipe section facilitates the movement of the fibrous material toward the deeper chamber 68 on the left.

[0057] In the example shown, the outwardly protruding portion of the opening roller 61 is used only to throw the fibrous material away from the rotation center point of the corresponding opening roller 61 toward the surrounding wall section 63.

[0058] The guide element 65 in the right chamber 68, such as Figure 6 The arrangement is shown. Each guide element 65 is constructed as a rib, wherein the eleven guide elements 65 on the right slope upwards to the left. The ribs 65 on the left slope in the opposite direction. The transfer section 8 or the associated opening 66 is located between the two guide elements 65 on the left. Thus, the guide elements 65 facilitate reliable entry of fibrous material into the transfer section 8.

[0059] In the left-hand chamber 68, the guide element 65 is shown as... Figure 6 The guide element 65 on the left is shown to be tilted. Preferably, the guide element 65 on the far right can be tilted like... Figure 6 The eleven right-hand guide elements 65 shown are arranged as described. This allows or facilitates the exit of fibrous material from the left-hand chamber 68 into the connecting tube 34.

[0060] Figure 7 Showing from Figure 1 A vertical cross-section viewed from the front. The window 6 in or on the housing 2 is clearly visible. Furthermore, a drive section 90 is constructed on this side of the cotton cleaning machine 1. The drive section 90 includes a concealed motor, on which a pulley 91 is anti-torsional mounted. A drive belt 94 is wound around this pulley 91 and another pulley 92. The pulley 92 is relative to... Figure 5The chamber 68 on the left side is positioned behind the loosening roller 61 to prevent twisting. The pulley 92 has two sides. A drive belt 94 is wound on the first side. A second drive belt 95 is wound on the rearward side, and this drive belt also winds around a third pulley 93. The pulley 93 is relative to... Figure 5 The rightmost opening roller 61 is anti-torsion positioned. This allows the motor to drive both opening rollers 61, 61. The pulley 92 preferably has a smaller outer diameter than the pulley 93. Consequently, the rotational speed of the rightmost opening roller 61 is greater than that of the leftmost opening roller 61. This results in a significant effect: the transported fiber material is slightly pulled apart, especially in the area of ​​the transfer section 8. This allows the fiber material to be transported frictionlessly through the invisible transfer section 8, even at high production volumes, and reduces the risk of fiber material accumulation. Overall, this results in smoother operation.

[0061] Furthermore, in the illustrated arrangement, a preferably adjustable tension pulley 96 is provided in the area of ​​the drive belt 95. Such a tension pulley could also be provided in the area of ​​the drive belt 94. Alternatively, only one drive belt exists, in which a tension pulley may be provided that causes the drive belt to rotate such that the window 7 remains positioned below the drive belt.

[0062] Window 7 is located in the region of chamber 48 of the outlet section 40 and has a similar effect to window 6 (only in relation to chamber 48).

[0063] Finally, a motor 46 is provided, which is anti-torsional positioned relative to the impeller 42. Thus, the motor 46 rotates the impeller 42, thereby allowing the separated material to be removed from the cotton cleaning machine 1.

[0064] Figure 8 Showing from Figure 1 A detailed view of the front of the cotton cleaning machine 1; this view is used to clarify the arrangement of the connecting pipes 27, 34 relative to the associated chamber 68 or wall section 63.

[0065] Figure 9 As shown in the plan view, it is similar to Figure 3 The cross-sectional view is shown. The transfer section 8 is located in front of and in front of the connecting pipes 27 and 34, and is therefore not visible. The fibrous material enters the left chamber 68 through the connecting pipe 27. A clockwise rotating loosening roller 61 causes the fibrous material to move perpendicularly outward from the plane of the drawing along the left dust grid 62 and wall section 63. The (pre-)cleaned fibrous material in the left chamber 68 reaches the right chamber 68 through the transfer section 8 and is moved perpendicularly into the drawing by the clockwise rotating loosening roller 61. The cleaned fibrous material reaches the connecting pipe 34 at the rear end of chamber 68 and then through this connecting pipe to the pipe 31 of the outlet section 30.

[0066] A pipe 41 is connected to the rear end of the outlet space 45, and as can be seen through the two windows 9, the pipe is constructed to start from the outlet space 45, go to the right and then extend upward in an arc.

[0067] The transport areas 10, 20, 30, and 41 involving material flow are located above the housing 2 of the cotton cleaner 1, allowing material transport pipes to be installed on the upper side. This minimizes the footprint of the cotton cleaner 1 and standardizes its connections to upstream and downstream spinning machines.

[0068] Figure 10 The cotton cleaning machine 1 shown according to the second embodiment of the present invention is similar to... Figure 8 The view.

[0069] Unlike the first embodiment, the connecting pipes 27 and 34 are constructed on opposite ends of the wall section 63. The transfer section 8 is constructed at the opposite ends of these two wall sections 63 or chambers 68. Two opening rollers 61 (not shown) rotate counterclockwise here.

[0070] Here, the material reaching the left chamber 68 via the connecting pipe 27 travels along the left opening roller 61. Figure 10 The material is transported forward and guided into transfer section 8, and from transfer section 8 into right chamber 68. Right opening roller 61 also rotates counterclockwise and guides the fibrous material from transfer section 8... Figure 10 The material is transported from the middle to the rear. The cleaned fibrous material reaches the connecting tube 34 at the rear end. Preferably, a section 70 is provided on the upper side of each wall section 63 of the chamber 68. This section mainly consists of a bracket 72 and a rod 71 mounted thereon. The bracket 72 is fastened to the outer side of the corresponding wall section 63.

[0071] Figure 11 by Figure 10 The viewpoint shown from the lower right is as follows Figure 10 A view of the cotton cleaner 1. As can be seen, rods 71 ​​extend into chamber 68. This means that fibrous material guided along guide elements 65 impacts these rods 71. These rods 71 ​​are spaced apart from each other, allowing the fibrous material to pass through the gaps. Depending on the size and shape of the fiber clusters, they rotate due to the impact on the rods 71, thus moving along the dust grid 62 (not shown) on the other side during the next rotation. Therefore, fibrous material can be cleaned on different sides during movement along the respective opening rollers 61. This greatly improves the overall cleaning effect of the cotton cleaner 1. The rods 71 ​​preferably have a circular cross-section, but may also be, for example, not circular and / or have a guiding function along the axis of rotation of the associated opening roller 61. Thus, the guide elements 65 can be omitted if necessary.

[0072] Figure 12 by Figure 10 The lower-middle view shows a horizontal cross-section of the cotton cleaning machine 1 shown there. According to this view, windows 6 are constructed on the two walls of the defining chamber 68 of the preferred housing 2. This effectively prevents or even avoids fiber accumulation in the areas of the connecting pipes 27, 34 and the transfer section 8, so that fiber material does not accumulate in the housing 2 in particular.

[0073] It can also be seen that the opening 66 forms a channel area between the corresponding chamber 68 and the transfer section 8.

[0074] Figure 13 The cleaning section 60 is shown in partial view. Wall sections 63, which surround the chamber 68 above the dust collector 62 (indicated by means of the dust collector support 67), are visible on the right and left. Openings 64 or 66 leading to connecting pipes 27, 34, or transfer section 8 are also shown. An associated opening roller 61 is also depicted. The housing 2 here has a slit-like through-hole 2a and two threaded holes 2b above the opening roller 61.

[0075] Figure 14 shows the shell 2 in the area of ​​the through-hole 2a in magnified detail, a... Figure 13 front ( Figure 14a And one from its back ( Figure 14b ).

[0076] As can be seen, cover plate 13 abuts against housing 2 on the outer side associated with chamber 68, and in the illustrated example, the cover plate covers approximately two-thirds of the through opening 2a by its upper edge 13c. Cover plate 13 here has a protrusion 13a extending outward from housing 2 and chamber 68 on its lower edge. Furthermore, cover plate 13 has two elongated holes 13b, 13b, which in the illustrated example are parallel to each other and extend toward slit opening 2a. Two screws 15 are screwed into corresponding threaded holes in the two threaded holes 2b using washers 14, thus securing cover plate 13 to the wall of housing 2. The vertical position of cover plate 13 can be changed through the elongated holes 13b, 13b, thereby changing the opening width of through opening 2a. This is used to regulate the amount of air that can flow into chamber 68 from the outside.

[0077] Of course, it is not necessary to provide only one through-hole 2a. Multiple through-holes 2a can also be provided. The cover plate 13 can therefore have multiple slits so that all through-holes 2a can be adjusted simultaneously using the same adjustment mechanism.

[0078] Instead of being movable, the cover plate 13 can also be configured to be rotatable. That is, the through opening 2a does not have to extend straight in a slit shape, but can, for example, be constructed in an arc shape.

[0079] Of course, multiple cover plates 13 can also be envisioned.

[0080] The present invention is not limited to the embodiments described above.

[0081] The illustrated embodiments are particularly capable of combining or substituting components with each other. This relates, for example, to section 70.

[0082] For example, one of the connecting pipes 27 and 34, or the transfer section 8, can be connected to the corresponding chamber 68 at the end face.

[0083] The guide element 65 may also be implemented alternatively or additionally by means of at least one protrusion of the opening roller 61, such that the protrusion is configured as a wing.

[0084] As an alternative or alternative to the inclined placement, the guide element 65 can be arched such that the arched portion deflects the fiber material toward the transport direction along the corresponding opening roller 61 and, if necessary, rotates it in the same manner. In this case, the guide element 65 can also be constructed parallel to the rotating surface of the corresponding opening roller 61.

[0085] Apart from Figure 6 In addition to the straight configuration shown, the guide element 65 can also be configured as arc-shaped, bent, or other shapes to push the fibrous material along the transport direction of the associated opening roller 61.

[0086] Impeller 42 can also be replaced by a worm gear, so that the separated material actively moves toward pipe 41. In this case, the outlet space 45 with outlet pipe 44 can be omitted.

[0087] The transfer section 8 may also have internal bends, as long as they do not excessively affect the material flow and cause material buildup that cannot be removed during continuous operation.

[0088] The number of chambers 47 and 68 with opening roller 61 is not limited to two. Three or more such devices may also be provided. In this case, multiple transfer sections 8 are provided, or more precisely, the number of transfer sections is one less than the number of opening roller 61 or chamber 68.

[0089] The distance between the opening roller 61 and the vertical surface of the cotton cleaner 1 does not need to decrease from the inlet 27 to the outlet 34. It can remain exactly the same or even increase. This is especially conceivable when there is a direct transition between two directly adjacent chambers 68, 68.

[0090] The cross-section of the transfer section 8 preferably decreases from the exiting opening roller 61 to the receiving opening roller 61. This causes the fiber material flow to accelerate toward the receiving opening roller 61 and thus reduces the risk of fiber accumulation.

[0091] The transfer section 8 need not be constructed as an additional piping system. The wall sections 63, 63 can, for example, allow two adjacent chambers 68, 68 to be adjacent to each other and have an opening through which fibrous material passes from one chamber 68 to the other. For this purpose, the two chambers 68, 68 are preferably connected to each other by means of a top cover-shaped wall section on the side away from the loosening rollers 61, 61.

[0092] The transition between the corresponding chamber 68 and the transfer section 8 is preferably constructed without bends, thereby further reducing the risk of fiber accumulation and promoting fiber flow.

[0093] Alternatively, a worm gear can be used instead of the impeller 42. This eliminates the need for the exhaust space 45, which is advantageous in terms of manufacturing costs and space requirements.

[0094] Chambers 48 and 48 need not be configured such that, relative to the vertical surface of the cotton cleaner 1, the dust cells 62 and 62 have a greater spacing than the outlet space 45. Due to the negative pressure in the cotton cleaner 1, the outlet space 45 can also be at the same height as or even higher than the dust cells 62 and 62.

[0095] The cross-sections of chambers 48 and 48 do not need to be reduced towards the outlet space 45.

[0096] The air separator 26 can be configured to either exhaust only a portion of the incoming air or completely exhaust the incoming air (air collector). In the second case, air may need to be reintroduced if necessary.

[0097] All, some, or even none of the components 8, 27, 34, 44, 45, 47, and 48 are constrained at least on one side by the wall of the housing 2 of the cotton cleaner 1. This eliminates the need for an additional cover plate component, which is advantageous for manufacturing costs. Furthermore, the walls 63, 43, and 47 surrounding these components 44, 45, 48, and 68 can reinforce the housing 2, thereby at least partially establishing the stability of the cotton cleaner 1.

[0098] In addition to the aforementioned cotton cleaner 1, a feeder or a multi-roller cotton opener can also be considered as a spinning machine using the above solution.

[0099] Therefore, the present invention provides a simple and low-cost solution that can open and clean fibrous materials quite well and easily.

[0100] List of reference numerals

[0101] 1 Spinning machines

[0102] 2. Shell

[0103] 2a Through-hole

[0104] 2b Threaded hole

[0105] 3. Monitors

[0106] 4. Fiber material flow

[0107] 5 Adjustable feet

[0108] 6 windows

[0109] 7 windows

[0110] 8. Transfer Section

[0111] 9 windows

[0112] 10. Supply Section

[0113] 11 Sensors

[0114] 12 pipes

[0115] 13 Cover plate

[0116] 13a Protrusion

[0117] 13b Elongated Hole

[0118] 13c edge

[0119] 14 Gaskets

[0120] 15 screws

[0121] 20. Introduction Section

[0122] 21 motors

[0123] Pipeline sections 22-24

[0124] 25 fans

[0125] 26 Air Separator

[0126] 27 Connecting pipe

[0127] 28 pipes

[0128] 30 Derivation Section

[0129] Pipes 31 and 32

[0130] 33 Sensors

[0131] 34 Connecting pipe

[0132] 40 Derivation Section

[0133] 41 Pipeline

[0134] 42 Impeller

[0135] 43 wall segments

[0136] 44 Exporting Pipes

[0137] 45 Export Space

[0138] 46 motors

[0139] 47 wall segments

[0140] 48 chambers

[0141] 60 Cleaning Section

[0142] 61 Opening Roller

[0143] 62 dust grids

[0144] 63 wall segments

[0145] 64 Opening

[0146] 65 Guide elements

[0147] 66 Opening

[0148] 67 Dust Grid Support

[0149] 68 chambers

[0150] 70 sections

[0151] 71 strokes

[0152] 72 stents

[0153] 90 Drive Section

[0154] 91-93 Belt pulleys

[0155] 94, 95 drive belt

[0156] 96 tensioners

Claims

1. A spinning machine (1), having equipment, said equipment • It has multiple cleaning sections (60), said multiple cleaning sections -Each has an associated opening roller (61) and - Designed so that, as the associated opening roller (61) rotates in a predetermined direction, the fiber material is transported in the corresponding transport direction along the rotation axis of the associated opening roller (61). • Transport and • Separate impurity materials under these conditions -in, Two directly adjacent opening rollers (61) form a pair. • Each pair of directly adjacent opening rollers (61) in the two cleaning sections (60) has an associated transfer section (8) designed to transfer fibrous material conveyed from one opening roller (61) forming the corresponding pair toward one end of the corresponding pair to the opposite end of the other opening roller (61) in the transverse direction of conveying, from which the fibrous material is transported outward along the rotation axis of the opening roller. • It has an inlet (27) configured to convey incoming fibrous material to one end of a first opening roller (61) away from the associated transfer section (8), and an opening roller (61) is provided directly adjacent to the first opening roller. • It has an outlet (33) for conveying fibrous material from one end of the last opening roller (61) away from the associated transfer section (8), and an opening roller (61) is also provided directly adjacent to the last opening roller. The characteristic feature is that the transport directions of directly adjacent opening rollers (61) are oriented in opposite directions to each other.

2. The spinning machine (1) according to claim 1, wherein, Each cleaning section (60) has a fiber guiding section, said fiber guiding section being designed to: • The fibers are guided along the rotation axis of the associated opening roller (61), and • The impurity material is discharged from the transport path along the associated opening roller (61).

3. The spinning machine (1) according to claim 2, wherein, At least one guide section has guide sections (65) that are spaced apart and / or constructed along the outer peripheral surface of the associated opening roller (61), such that the fiber material is affected by the rotation of the associated opening roller (61) and the centrifugal force acting on the fiber material. • Push to the guide section (65) and • Due to the design of the guide section (65) -Turn towards the corresponding transport direction and / or - Intercepted.

4. The spinning machine (1) according to claim 3, wherein, The guide section (65) has ribs, each of which has a first wall pointing in the opposite direction to the transport direction of the corresponding opening roller (61), the first wall being at least partially • Extends toward the opening roller (61) and • Viewed horizontally in the corresponding transport direction, - at an acute or right angle to the direction of transport, and / or - At least part of the rotational direction of the associated opening roller (61) in the transport direction extends from the front end to the rear end.

5. The spinning machine (1) according to any one of the preceding claims, wherein, At least one opening roller (61) has a spike, which is transverse to the corresponding transport direction. • At an acute or right angle to the direction of transport, and / or • At least part of it extends from the front end to the rear end in the transport direction relative to the rotation direction of at least one opening roller (61).

6. The spinning machine (1) according to any one of the preceding claims, wherein, The transfer section (8) is at least partially constructed to be straight, without bending, and / or bent toward the opening rollers (61) on at least one side toward the two associated opening rollers (61).

7. The spinning machine (1) according to any one of the preceding claims, wherein, For each pair of opening rollers (61), the distance between one opening roller (61) and the ground on which the opening machine is standing is greater than the distance between the other opening roller (61) and the ground.

8. The spinning machine (1) according to any one of the preceding claims, wherein, In at least one pair, the internal cross-section of the associated transfer section (8) decreases from one opening roller (61) toward the other opening roller (61).

9. The spinning machine (1) according to any one of the preceding claims, Each opening roller (61) also has an associated chamber (68) surrounding it, in which the fibrous material is transported by the corresponding opening roller (61) based on the rotation of the opening roller. ·in, Transfer section (8) - Constructed as a channel - One end is inserted into an associated chamber (68) surrounding an opening roller (61), such that the fibrous material transported by the opening roller (61) automatically reaches the one end of the transfer section (8) based on the rotation of the opening roller and the resulting centrifugal force acting on the transported fibrous material, as well as the existing volumetric flow. - The other end is inserted into another chamber (68) surrounding another opening roller (61), so that the fibrous material from the one opening roller (61) automatically reaches the other chamber (68) due to its speed.

10. The spinning machine (1) according to claim 9, wherein, The transition between the inner side of the opening roller (61) facing the corresponding surrounding section (8) of at least one of the two chambers is constructed to be without bending.

11. The spinning machine (1) according to claim 9 or 10, It also has a derivation section (40), said derivation section (40) -Each chamber (68) has an outlet chamber (48) and -Has an export pipe (44), ·in, - Each outlet chamber (48) is connected at one end to the outlet conduit (44), and - A dust grid section (62) is provided at the end opposite to the said end of each outlet chamber (48), the dust grid section separating the corresponding outlet chamber (48) from the associated chamber (68) surrounding the corresponding opening roller (61), and • The exported pipe (44) - It has an outlet, which is connected to the discharge pipe (41), and - It has a transport section designed and configured to transport material from the connected outlet chamber (48) to the outlet.

12. The spinning machine (1) according to claim 11, wherein, The distance between one end of the outlet chamber (48) and the ground is less than the distance between the other end and the ground.

13. The spinning machine (1) according to any one of claims 11 or 12, wherein, The outlet pipe (44) is constructed as a pipe with open sides, and the associated chamber (68) is inserted at one end into the second wall (47) of the pipe, which forms a pipe-shaped cross-section.

14. The spinning machine (1) according to claim 13, wherein, • Derived section (40) - It has a conveyor wheel disposed in the outlet pipe (44) such that the axis of rotation of the conveyor wheel extends along the longitudinal extension and transversely to the inlet toward the connected outlet chamber (48). -Including a drive section (46) designed to rotate the conveyor wheel, and -The conveyor wheel is constructed as an impeller (42) or · Worm gear.

15. The spinning machine (1) according to any one of claims 9 to 14, wherein, The chamber (68) is bounded on one side by a third wall of the housing (2) of the spinning machine (1) closest to the transfer section (8), the third wall having at least one through-hole (6, 7) constructed in the region of each receiving opening roller (61).

16. The spinning machine (1) according to claim 1, wherein, The spinning machine (1) is a cotton cleaner, a multi-roller cotton opener, or a feeder.

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