Carding machine

Abstract

The invention relates to a carding machine having a feed side for a fiber bundle, the carding machine being configured to feed the fiber bundle to a rotating cylinder (4) by means of at least one licker-in (3a, 3b, 3c), the fiber bundle being released into individual fibers between a fixed carding element and a surrounding cover strip (17) and the cylinder (4), the individual fibers being oriented and cleaned. The resulting web can be transferred from the cylinder (4) to a doffer (5), downstream of which a device for converting the web into a sliver is arranged. The invention is characterized in that the carding machine has a machine frame (18) for accommodating the cylinder (4) and the doffer (5), and the at least one licker-in (3a, 3b, 3c) is arranged and supported on or in a separate housing (19), the separate housing (19) being arranged and fastened on the machine frame (18) in such a way that the distance between the at least one licker-in (3c) and the cylinder (4) is adjustable.

Description

Technical Field

[0001] The invention relates to a carding machine with a fiber bundle infeed side, wherein the carding machine is designed to feed the fiber bundle to a rotating cylinder by means of at least one licker-in roller. On the cylinder, the fiber bundle is loosened into individual fibers between fixed carding elements and a surrounding flat strip, oriented and cleaned. The fiber web produced in this way is transferred from the cylinder to a doffer, downstream of which a device for converting the fiber web into a fiber strip is arranged. Background Art

[0002] According to the prior art, some revolving flat carding machines are known, which basically have a large main cylinder, a cylinder or a drum, on which the fiber combing is carried out by a certain number of revolving flats and fixed combing elements. The working part for supplying the material is a licker-in roller and the working part for discharging the material is a doffer. The combing length and especially the number of active surrounding flat strips of the revolving flat have a significant influence on the combing quality. The combing area and the cylinder rotation speed play a decisive role in the productivity of the carding machine. It is possible to increase the cylinder rotation speed, wherein relatively high centrifugal forces are generated here, resulting in convex deformation of the cylinder. Therefore, if a constant combing gap is specified for the center of the cylinder, the combing gap relative to the cylinder edge will become larger. Another disadvantage of increasing the cylinder rotation speed is the heating and thermal expansion of the cylinder related to this, because the speed of the fiber between the cylinder and the combing element increases, which leads to increased friction. For revolving flat carding machines, cylinders with diameters below D=1300 mm are usually used. In order to increase the combing length around such a cylinder, a common method is to move the licker-in roller and / or doffer further below the cylinder. The available circumferential length is thus increased so that a desired number of additional revolving flats can be installed.

[0003] This method is limited if the rollers are moved so far that they almost touch each other with their respective attachments. This method inevitably leads to two disadvantages that interact with each other:

[0004] The cylinder must be positioned quite high in the machine, at least so high that it lies above the doffer. This doffer usually has a relatively large diameter in the range of D=700 mm, so that the large cylinder must be positioned quite high. The higher the heavy, high-speed cylinder is at approximately 600 rpm, the worse the running stability and vibration stability. The supporting frame must be correspondingly large and solidly constructed and not too thin.

[0005] The increase in the carding length and the cylinder diameter also changes the geometry of the frame on which the cylinder, together with the doffer and licker-in unit, is arranged and supported. The dimensions of the frame become higher and wider, so that the expenditure on machining the mounting surface increases with the existing machine tool warehouse. With existing machines, the frame cannot be machined in one clamping, but must be repositioned and clamped several times on the machine tool table. The production costs increase significantly.

[0006] EP 2527505 discloses a revolving flat carding machine, which proposes a specific geometrical arrangement of licker-in and doffer to achieve high productivity. Here, the entire geometry is oriented according to the horizontal direction of the carding machine. The frame is provided with a central receiving surface for the bearing of the drum, wherein receiving surfaces for the licker-in unit and doffer are arranged on both sides. The length dimension of the structure is therefore quite large and requires a processing machine with a large clamping range. If the carding machine is produced at several locations worldwide, then these locations must all have such a processing machine with a large clamping range. Summary of the invention

[0007] Accordingly, the object of the present invention is to improve the machine frame of a carding machine in such a way that the machine frame can be produced on processing machines of different sizes using as few clamping steps as possible.

[0008] The invention achieves the stated object by means of a device having the features specified in claim 1. Advantageous developments of the invention are defined in the dependent claims.

[0009] The invention relates to a carding machine with a fiber bundle infeed side, wherein the carding machine is designed to feed the fiber bundle to a rotating cylinder by means of at least one licker-in roller. On the cylinder, the fiber bundle is loosened into individual fibers between fixed carding elements and a surrounding flat strip, oriented and cleaned. The fiber web produced in this way is transferred from the cylinder to a doffer, downstream of which a device for converting the fiber web into a fiber strip is arranged.

[0010] The present invention includes the following technical teaching: the carding machine has a frame for accommodating a cylinder and a doffer, and at least one licker-in roller is arranged and supported on or in a separate housing, wherein the separate housing is arranged and fastened to the frame in such a way that the distance between the at least one licker-in roller and the cylinder is adjustable.

[0011] By separating the assembly of the licker-in roller with all its accessories, drive and suction device from the frame of the carding machine, the frame of the carding machine can be constructed shorter. As a result, the frame can be produced at different processing stations with only one clamping, thereby reducing production costs. By accommodating the assembly of the licker-in roller with all its accessories, drive and suction device in a separate housing, the housing can be completely preassembled. The housing with the assembly of the licker-in roller is adjustably arranged or fastened relative to the frame of the carding machine, with the further advantage that the spacing between the cylinder and the adjacent licker-in roller is adjustable, depending on the material to be processed, the operating temperature and / or the wear state of the card clothing. The transfer of pre-cleaned fiber bundles or fibers from the licker-in roller to the cylinder is optimized, so that the carding machine works with higher productivity.

[0012] Depending on the adjustable arrangement of the housing on the frame, the position of the housing relative to the frame can be adjustable by means of an actuator. The actuator can be configured to translate the housing relative to the frame of the carding machine, for example along a guide or pivot about a rotation point.

[0013] By enabling the housing to be pivotably arranged on the frame, a fixed pivot point is obtained which serves as a fixed bearing. In the event of thermal expansion of the carding machine or a change in the transfer gap between the cylinder and the adjacent licker-in roller, the spacing between the two rollers can be adjusted by pivoting the housing about the pivot point. The transfer gap between the cylinder and the adjacent licker-in roller can be adjusted with great precision.

[0014] A support can be arranged between the frame and the housing, which support is designed to pivot the housing about a pivot point. The support can be designed mechanically and manually adjustable, or as an actuator, by which the housing can be pivoted spaced apart from the frame, for example, by means of a motor. Thus, the transfer gap between the cylinder and the licker-in roller can be adjusted during continuous operation, which adjustment can be varied, for example, when the operating temperature changes.

[0015] The support can be engaged with the vertical side parts of the frame below the pivot point. The weight of the housing thus always acts on the support about the pivot point, so that dead zones or gaps, for example in the bolt threads of the support, are always avoided. The adjustment of the transfer gap is always carried out precisely.

[0016] The at least one licker-in roller can be supported in the housing in an upwardly open support. The licker-in roller can be disassembled quite quickly and equipped with a new card clothing without disassembling associated components.

[0017] Described at least one licker-in roller cooperates with a fixed combing element respectively, and these fixed combing elements are fastened on the housing equally.According to the position of roller and the transfer point of fiber or fiber bundle on roller, fixed combing element can be arranged above or below licker-in roller.

[0018] In order to adjust the distance between the fixed combing element and the licker-in roller, a lateral mounting opening can be arranged on the housing, through which the distance between the fixed combing element and the respectively associated licker-in roller can be adjusted.

[0019] A higher trash separation rate and better opening of the fiber bundle can be achieved in that the housing has three licker-in rollers which are arranged in a support which is open upward. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Further measures that improve the invention are explained in more detail below together with the description of preferred exemplary embodiments of the invention with reference to the drawings.

[0021] In the figure:

[0022] Figure 1 shows a schematically illustrated side view of a carding machine according to the prior art;

[0023] Figure 2 Shows a frame of a carding machine according to the prior art;

[0024] Figure 3 A carding machine frame with a licker-in unit according to the invention is shown;

[0025] Figure 4 Another enlarged view of the licker-in unit is shown. DETAILED DESCRIPTION

[0026] Figure 1 A carding machine according to the prior art is shown, in which a fiber bundle is guided via a shaft to a feed roller 1, a feed plate 2, and via a plurality of licker-in rollers 3a, 3b, 3c to a cylinder 4 or drum. On the cylinder 4, the fibers of the fiber bundle are parallelized and cleaned by means of a fixed, circumferential carding element. Subsequently, the produced fiber web is conveyed via a doffer 5, a stripping roller 6 and a plurality of squeezing rollers 8, 9 to a fiber web guide element 10, which converts the fiber web into a fiber strip by means of a collecting bell mouth 11, which is transferred to a subsequent processing device or a can 15 via detaching rollers 12, 13. The removal of the fibers from the doffer 5 is supported by a fiber web guide section 7 arranged below the stripping roller 6. A cleaning roller 6a is arranged above the stripping roller 6, with the help of which fiber residues are removed from the stripping roller 6 and conveyed to a suction device not shown in detail.

[0027] Figure 2The frame 18 of a carding machine according to the prior art is shown. The central component is a receiving area 18a for the cylinder, which is adjoined on the left in the figure by a receiving area for a doffer 18b and on the right by a receiving area for a licker-in 18c. The frame 18 of the carding machine is enlarged by increasing the cylinder diameter and / or by moving the licker-in 3a-3c and the doffer 5 further below the cylinder 4 to increase the carding length, which becomes taller and / or longer. Depending on the machine tool used, the frame 18 can no longer be processed in one clamping on the machine tool for the machining of the mounting surfaces and the bearings.

[0028] according to Figure 3 , the invention provides that the frame 18 is reduced in the accommodation area for one or more licker-in rollers and the entire assembly of the one or more licker-in rollers 3a-3c is integrated in a separate housing 19. The housing 19 is rotatably fastened to the rotation point 20 of the frame 18 and the distance to the cylinder 4 is adjusted by means of a support 21 arranged between the side parts of the frame 18 and the housing 19. In this embodiment, three licker-in rollers 3a-3c are arranged in the housing 19. An alternative assembly provides an embodiment with only one single licker-in roller. The housing 19 with the assembly of the licker-in rollers 3a-3c is designed to be pivotable about the rotation point 20 (due to its own weight) and is held in position only by the support 21. By adjusting the support 21, the housing 19 is pivoted about the rotation point 20, so that the distance between the card clothing of the licker-in roller 3c and the cylinder 4 can be adjusted. However, the support 21 can also be completely retracted, so that the distance between the card clothing of the licker-in roller 3c and the cylinder 4 is increased. Therefore, it is easier to reload the card clothing of the licker-in rollers 3a-3c, because these licker-in rollers are more accessible. It has proven to be advantageous if the distance between the support 21 and the pivot point 20 is between 200 mm and 300 mm. With this distance, on the one hand, the licker-in roller 3 c can be adjusted precisely relative to the cylinder 4, while at the same time a compact design can be achieved. In the housing 19, the licker-in rollers 3a-3c are arranged in a support that is open upwards, so that all licker-in rollers 3a-3c can be removed from the housing 19 without great assembly effort. The support 21 can be actuated mechanically or by means of an actuator (hydraulic, pneumatic, electric), so that a control device can be configured to adjust the gap or spacing between the card clothing of the cylinder 4 and the card clothing of the licker-in roller 3c during continuous operation or when the carding machine is stationary. For example, the adjustment can be made depending on the material to be processed, the operating temperature and / or the wear state of the card clothing.

[0029] The housing 19 is designed to accommodate the entire assembly of the licker-in rollers 3a-3c including the feed rollers 1, the feed plate 2 and all associated drives and suction devices 22. The transition to the fiber bundle feed is made via a flexible connection (not shown further) to compensate for the movement of the housing 19.

[0030] The licker-in roller 3c has a fixed combing element 23c, which is arranged vertically below the licker-in roller 3c in the housing 19. The middle licker-in roller 3b has a fixed combing element 23b, which is arranged above the licker-in roller 3b on the housing 19. When disassembling the licker-in roller 3b, the fixed combing element 23b must first be removed. The licker-in roller 3a also has a fixed combing element 23a, which is arranged obliquely below the licker-in roller 3a in the housing 19. In addition, the drive with the drive belt and the suction device 22 can be seen, which are components of the structural group of the licker-in rollers and are arranged on the housing 19 or integrated in the housing 19.

[0031] Figure 4 An enlarged view of the second and third licker-in rollers 3b, 3c is shown, which have associated fixed combing elements 23b, 23c. By loosening the fastening elements 24b, 24c, the spacing of the fixed combing elements 23b, 23c from the clothing of the licker-in rollers 3b, 3c can be adjusted in that the associated spacing elements 25b, 25c can be adjusted or more precisely can be translated or pivoted, and thus the spacing of the fixed combing elements 23b, 23c from the clothing of the licker-in rollers 3b, 3c can be changed. This spacing position can then be fixed again by means of the fastening elements 24b, 24c. In the third licker-in roller 3c, the fixed combing element 23c is arranged below the licker-in roller 3c, in which a housing opening in the form of a window is arranged, through which the fitter can loosen or tighten the fastening element 24c with a tool. In the second licker-in roller 3b, the fixed combing element 23b is arranged above the licker-in roller 3b. Here, the fastening element 24b is exposed and can be loosened or fastened again after adjusting the fixed carding element 3b. Here, a spacing element 25b is also arranged between the fixed carding element 23b and the licker-in roller 3b, so that the spacing between the fixed carding element 23b and the card clothing of the licker-in roller 3b can be adjusted by translating or pivoting the spacing element 25b. Both spacing elements 25b, 25c can be accessed through a window in the housing 19. Of course, the embodiment described here is arranged on both sides of the carding machine, so that the spacing to be adjusted can always be achieved over the entire working width of the carding machine.

[0032] The advantage of this development is that, since the fastening elements and the spacing elements are accessible through the window arranged in the housing, the spacing of the fixed combing element from the associated licker-in roller can be adjusted without disassembling the suction hood, the profile or other components. All components remain in place when the fixed combing element is adjusted without being disassembled.

[0033] Reference numerals list

[0034] 1 Feed roller

[0035] 2 Feed plate

[0036] 3a, 3b, 3c licker-in

[0037] 4. Xilin

[0038] 5 dolf

[0039] 5a Card Clothing

[0040] 6 Stripping roller

[0041] 6a Cleaning roller

[0042] 7 Fiber web guide section

[0043] 8 Squeeze roller

[0044] 9 Squeeze roller

[0045] 10 Fiber web guiding element

[0046] 11 Collection horn

[0047] 12 Separating rollers

[0048] 13 Separating roller

[0049] 14 Fixed combing element

[0050] 15 cans

[0051] 16 Swivel Flats

[0052] 17 Cover strip

[0053] 17a Card clothing

[0054] 18 racks

[0055] 18a Cylinder receiving area

[0056] 18b Astoria's Accommodation Area

[0057] 18c Accommodation area for licker-in rollers

[0058] 19 Licker-in shell

[0059] 20 pivot points

[0060] 21 Pillar

[0061] 22 Suction device

[0062] 23a, 23b, 23c fixed combing element

[0063] 24b, 24c fastening element

[0064] 25b, 25c spacer element

Claims

1. A carding machine having a feeding side for a fiber bundle, wherein: The carding machine is configured to convey fiber bundles to a rotating cylinder (4) by means of at least one licker-in roller (3a, 3b, 3c), wherein the fiber bundles are loosened into individual fibers, oriented and cleaned between a fixed carding element and a surrounding cover strip (17) and the cylinder (4), and the fiber web produced thereby can be transferred from the cylinder (4) to a doffer (5), wherein a device for converting the fiber web into a fiber strip is arranged downstream of the doffer, characterized in that the carding machine has a frame (18) for accommodating the cylinder (4) and the doffer (5), and at least one licker-in roller (3a, 3b, 3c) is arranged and supported on a separate housing (19) or in a separate housing (19), wherein the separate housing (19) is arranged and fastened on the frame (18) so that the distance between the at least one licker-in roller (3c) and the cylinder (4) is adjustable.

2. The carding machine according to claim 1, characterized in that The position of the housing (19) relative to the frame can be adjusted by means of an actuator.

3. The carding machine according to claim 1, characterized in that The housing (20) is pivotably arranged on the frame (18).

4. The carding machine according to claim 3, characterized in that A support (21) is arranged between the frame (18) and the housing (19), which support is designed to pivot the housing (19) about a rotation point (20).

5. Carding machine according to one of the preceding claims, characterized in that The support column (21) is configured as an actuator.

6. The carding machine according to claim 4, characterized in that The support (21) cooperates with the vertical side parts of the frame (18) below the rotation point (20).

7. The carding machine according to claim 1, characterized in that The at least one licker-in roller (3a, 3b, 3c) is supported in a housing (19) in a support that is open upward.

8. Carding machine according to one of the preceding claims, characterized in that The at least one licker-in roller (3a, 3b, 3c) cooperates with a fixed combing element (23a, 23b, 23c) respectively, and the fixed combing element is also fastened to the housing (19).

9. The carding machine according to claim 8, characterized in that A lateral assembly opening is arranged on the housing (19), through which the distance between the fixed combing element (23a, 23b, 23c) and the respectively associated licker-in roller (3a, 3b, 3c) can be adjusted.

10. The carding machine according to claim 1, characterized in that In the housing (19), three licker-in rollers (3a, 3b, 3c) are arranged in a support that is open upwards.

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