Coiler plate device for a spinning room preparation machine, spinning room preparation machineand method for the manufacture of a coiler plate device.
The coiler plate device with a welded connection on the opening edge addresses manufacturing complexity and fibre sliver damage issues, providing a stable, durable, and cost-effective solution for spinning room preparation machines.
Patent Information
- Application Number
- PCT/CN2025/073265
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-02-01
- Filing Date
- 2025-01-20
- Publication Date
- 2025-08-07
AI Technical Summary
Existing coiler plate devices in spinning room preparation machines are complex and costly to manufacture, and the fibre sliver is prone to damage due to gaps and difficult welding access, leading to potential instability and increased maintenance needs.
A coiler plate device design with a welded connection positioned on the opening edge of the cover, allowing for a continuous, stable, and durable connection between the sliver duct and cover, facilitating easier welding and reducing the need for grouting compounds, while incorporating a balancing weight for rotational stability.
The new design simplifies manufacturing, reduces fibre sliver damage, enhances durability, and improves accessibility for welding, resulting in a more stable and cost-effective coiler plate device with reduced maintenance requirements.
Smart Images

Figure CN2025073265_07082025_PF_FP_ABST
Abstract
Description
Coiler plate device for a spinning room preparation machine, spinning room preparation machineand method for the manufacture of a coiler plate device.DescriptionTechnical Field
[0001] The invention relates to a coiler plate device for a spinning room preparation machine, wherein the coiler plate device comprises a coiler plate with a plate holder which extends along a longitudinal axis and a base body, a cover which is arranged on an underside of the base body which extends across the longitudinal axis, and comprises an opening edge which encloses an outlet opening formed in the cover, and includes a sliver duct for fibre sliver with an upper duct section which comprises an inlet and a lower duct section which comprises an outlet which is arranged flush to the outlet opening, wherein the upper duct section is connected to the plate holder, and the lower duct section reaches through a through-opening in the base body, and is connected to the cover by a welded connection. Furthermore, the invention relates to a spinning room preparation machine with at least one such coiler plate device and a method for manufacturing such a coiler plate device.
[0002] Background Technology
[0003] Such a spinning room preparation machine with coiler plate device is known from DE 10 2012 007 415 A1, for example. In the area of its inlet, the sliver duct of the coiler plate device is connected to a plate holder of a coiler plate which is a cast part made of aluminium or an aluminium alloy. The lower duct section of the sliver duct is directed through a through-opening formed in the coiler plate. To manufacture the coiler plate device, it is recommendable to place the output of the sliver duct which is made of a stainless steel pipe, for example, on the upper face of the closed cover. Using a welding process, such as laser welding, the sliver duct and the cover are joined to each other permanently. The laser beam penetrates the cover from the lower face and welds the end face of the sliver duct which encloses the outlet, firmly to the upper face of the cover. An outlet opening of the cover which is aligned flush with the outlet, is then made from the lower face of the cover through using a cutting process. Furthermore, the sliver duct is grouted in the through-opening of the coiler plate with a grouting compound.
[0004] DE 10 2004 058 572 A1 discloses a further coiler plate device, wherein a connection piece is formed with a continuous opening on the stainless steel plate cover which is fastened to the coiler plate. The outlet of the sliver duct is secured in the inlet opening of the connection piece, and can be sealed using silicone, adhesive and similar, for example.Summary of the Invention
[0005] The object of the invention is the development of a coiler plate device of the type mentioned at the beginning which can be manufactured more simply and cost-effectively, and prevents damage to the fibre sliver. It is also the object of the invention to provide an improved spinning room preparation machine with such a coiler plate device. Moreover, it is the object of the invention to provide a method which facilitates a more efficient manufacture of the coiler plate device of the type mentioned at the beginning.
[0006] The problem is solved by a coiler plate device of the type mentioned at the beginning in that the welded connection is positioned on the opening edge.
[0007] As a result, a continuously closed transition between the cover and the sliver duct is provided. The welded connection positioned on the opening edge which connects the lower duct section to the cover, prevents a narrow gap from remaining between the sliver duct and the cover on which the fibre sliver could become damaged as it passes through. In addition, the positioning of the welded connection on the opening edge means that it is possible to manufacture it with a welding device placed against the coiler plate device from below. Underneath the coiler plate device, neither the rotary can plate nor the sliver duct get in the way as both are arranged above the cover. Thus there is better accessibility which is not only advantageous when welding manually, but also when the welding process is automated. In this case, at the bottom or underneath relates to the arrangement of the coiler plate device during operation, during which the fibre sliver, coming from above, is threaded through the inlet into the sliver duct and exits through the outlet further below in order, for example, to be deposited in a coil which is arranged underneath, for example, a spinning can.
[0008] Furthermore, the welded connection can protrude radially to the longitudinal axis inwards into the outlet opening. This de facto leads to a reduction in size of the outlet opening. However, in particular the good accessibility of the welding position and the option of producing a particularly stable and durable welded connection between the two connection partners, the sliver duct and the cover, are advantageous.
[0009] The welded connection can be arranged along the longitudinal axis of the coiler plate. The lower face of the coiler plate against which the cover is arranged, can define a plane. The coiler plate is arranged above this plane. The outlet opening formed in the cover, with the welded connection positioned on its opening edge, can be positioned below this plane.
[0010] The outlet opening and the outlet can each comprise an at least essentially oval or round, in particular, circular contour. The contours of the two openings, specifically of the outlet opening and the outlet, are the same, wherein specifically the outlet opening is greater in area than the outlet. This simplifies the positioning of the welded connection on the opening edge.
[0011] In accordance with a first embodiment, provision can be made so that the sliver duct abuts against an upper face of the cover which faces the base body, with an end face of the lower duct section, i.e. is arranged with contact. In other words, the sliver duct can be placed on the cover from above. This provides a particularly stable and durable coiler plate device which, in addition is simple to manufacture. In particular, the end face refers to the final face of the duct wall which closes the sliver duct. Furthermore, the outlet opening can project beyond the outlet at the side, i.e. radially to the longitudinal axis. In other words, the outlet opening in the cover can be larger than the outlet of the sliver duct on all sides. In particular, the end face covers or overlaps the outlet opening partially. In other words, an external section of the end face can be supported radially to the longitudinal axis on the upper face of the cover, virtually forming a supporting section, and an internal section of the end face can project beyond, i.e. overlap the outlet opening, virtually forming an overlapping section. Thus, a shoulder can be formed between the end face and the opening edge on which the welded connection is positioned. By placing the welded connection on the opening edge and the end face, in particular the overlapping section, the coiler plate device is particularly stable and durable. In addition, the end face, i.e. its overlapping section, covers the welded connection, preferably completely, so that it does not protrude into the outlet through which the fibre sliver can pass. This prevents damage to the fibre sliver. In general, however, the sliver duct can also abut completely on the cover with the end face, and comprise no overlapping section accordingly.
[0012] In accordance with a second embodiment, which is regarded as an alternative to the aforementioned first embodiment, provision can be made so that the end face of the lower duct section is positioned at a plane which is spanned, i.e. defined, by a lower face of the cover which faces away from the base body. In other words, the sliver duct can close flush with the cover on the outlet side. Furthermore, the lower duct section can be inserted into the outlet opening with clearance so that between the lower duct section and the opening edge an all-round joining gap is formed in which the welded connection is positioned, i.e. inserted. This way, the welded connection can connect the opening edge to an outer wall of the sliver duct, i.e. of the lower duct section, which faces the opening edge. The joining gap, and thus also the positioning of the welded connection, is arranged outside the outlet, which prevents damage to the fibre sliver as a result. In order to guarantee a sufficient joining gap for the welded connection, i.e. for placing the welded connection, the clearance can measure at least 0.1 millimetre and a maximum of 1.5 millimetres.
[0013] In turn, for all embodiments, it equally applies that a surface of the welded connection can be designed to be ground and / or polished. That way, unevenness and roughness on the surface of the welded connection can be removed. This is particularly important in order to guarantee that the fibre sliver can exit from the sliver duct smoothly without getting stuck or becoming damaged. In addition, as a result, possible cracks in the surface of the welded connection can be removed, meaning that the welded connection is more stable and durable. Furthermore, the surface of the welded connection is thus shinier, which leads to an improved aesthetic appearance as the welded connection is visible with the coiler plate device in its installed condition on the spinning room preparation machine, i.e. when it is in operation, and attractive surface is advantageous.
[0014] The welded connection can be formed at least in sections as a continuous welded seam or as individual weld spots. The welded connection preferably extends over the entire circumference of the opening edge.
[0015] Furthermore, the welded connection can be configured as an arc welding connection. It is advantageous that it is particularly well suited for joining the cover, which can be produced from stainless steel sheet, for example, to the sliver duct, which can be produced from stainless steel. In addition, the arc can be used to produce a welded connection so that the welded connection is positioned precisely on the opening edge and, as a development on the shoulder, between the end face of the sliver duct and the opening edge, i.e. in the joining gap between the lower duct section and the opening edge. In addition, the heat exposure can be controlled precisely to prevent deformations in the joining partners. Furthermore, the arc welding connection is aesthetically pleasing, which is advantageous because the welded connection is visible when viewing the cover from below. For example, the arc welding connection is configured as a TIG (tungsten inert gas) welded connection. The welded connection can alternatively be produced using a MIG / MAG welding (abbreviation for metal inert gas / metal active gas) , electrode welding or, if necessary, even plasma welding method or similar.
[0016] In a preferred manner, the sliver duct is connected to the cover directly by the welded connection positioned on the opening edge only. In a further preferred manner, there is no joint between the sliver duct and the cover on the top face of the cover which faces the base body. The welded connection positioned from below offers sufficient stability so that the transition area between the top face of the cover and the sliver duct, which is difficult to access due to the spatial restrictions, does not have to be welded. This simplifies the manufacture of the coiler plate device.
[0017] Moreover, provision can be made so that no immediate force-fit connection is created between the sliver duct and the base body. Experience has shown that the welded connection placed on the opening edge provides a sufficiently stable and durable connection between the two joining partners. The lower duct section is then not welded to the base body. As a result, the grouting compound known from the state of the art, such as a synthetic resin, for example, which connects the lower duct section to the base body, is not required. This, in addition simplifies repairs to the coiler plate device as the sliver duct is not grouted. In addition, the coiler plate device is more ecologically sustainable as it can be recycled better. The grouting compound is also used in the state of the art because, due to the spatially curved sliver duct, there are areas along the transition between the sliver duct and the cover which are not accessible from above with the welding torch. The suggested positioning of the welded connection on the opening edge of the cover means that the transition can be configured to be continuously closed.
[0018] In order to prevent an imbalance of the coiler plate device which can be driven rotationally around the longitudinal axis in operation, a balancing weight can be arranged along the through-opening. This is advantageous if, for example, the sliver duct is not grouted, i.e. there is no direct force-fit connection between the sliver duct and the base body, and the weight of the grouting compound is missing accordingly. The balancing weight can comprise a single connected balancing weight or multiple separate balancing elements which can be arranged locally spaced apart from each other. The balancing weight can be made of a material with a density which is higher than the density of the material of the base body. The base body, i.e. the coiler plate, can be a cast part made of aluminium or an aluminium alloy, for example. The balancing weight can then be made of alloy steel or be a cast iron part, for example. Furthermore, the balancing weight can be glued, welded, screwed etc. to the base body, at least in sections. Instead of the balancing weight, a counter opening or a hollow space can be configured in the base body.
[0019] Moreover, the upper duct section can be arranged concentrically to the longitudinal axis, and configured to be hollow and cylindrical. This makes it easier for the fibre sliver coming from an upstream unit, for example, a drafting system, to enter into the sliver duct. The upper duct section can be configured as a straight cylindrical pipe section. The plate holder can comprise a through-bore which extends along the longitudinal axis, into which the upper duct section is inserted.
[0020] In accordance with a first embodiment, the upper duct section can be connected to the plate holder with a force-fit connection, for example, an adhesive connection. It can be produced using a grouting compound, for example. In accordance with an alternative second embodiment, the upper duct section can be connected to the plate holder by a further welded connection. In the same way as the welded connection which is arranged on the outlet side, the further welded connection, which is arranged on the inlet side, also features good accessibility as no components protrude above the plate holder, meaning that the welding device can be positioned well in this case, too.
[0021] The base body and the plate holder can form a single connected component which is incorporated by the coiler plate or is the coiler plate. The plate holder extends along the longitudinal axis. The base body can be configured to be plate-shaped, with the cover being arranged on its lower face which faces away from the plate holder.
[0022] The outlet opening and the outlet can be arranged parallel to each other. In other words, the outlet opening and the outlet can each mount one plane, both of which are arranged parallel to each other.
[0023] Furthermore, the problem is solved by a spinning room preparation machine with a coiling device for coiling a fibre sliver, in particular in a spinning can, as the coiling device comprises at least one coiler plate device in accordance with the described, respective type according to the invention. The spinning room preparation machine results in the same advantages as with the coiler plate device according to the invention and vice versa so that the reference is made to the preceding description.
[0024] In particular, the spinning room preparation machine is a carding machine, draw frame, comber or similar. The coiling device can be arranged at the carding machine outlet in order to coil the fibre sliver, in particular in the spinning can. Furthermore, the spinning room preparation machine can comprise a drafting system and the coiling device, which is downstream of the drafting system in the direction of conveying of the fibre sliver, and is used for coiling the fibre sliver, for example, in the spinning can.
[0025] Moreover, the problem is solved by a method of the type mentioned at the beginning in that the following steps are designated for manufacture of the coiler plate device according to the invention: Arrangement of the cover on a lower face of the base body; insertion of the sliver duct in the through-opening in the base body; alignment of the sliver duct so that the outlet is flush with the outlet opening; connection of the sliver duct with the cover by producing the welded connection, wherein a welding torch of a welding device is positioned against the cover along the longitudinal axis outside the base body, and the opening edge is welded to the lower duct section.
[0026] Depending on the alignment of the individual components of the coiler plate device when they are manufactured, underneath or below can also be understood to mean in the conveying direction of the fibre sliver through the sliver duct behind the coiler plate device, and at the top or above can also be understood to mean in the conveying direction of the fibre sliver through the sliver duct in front of the coiler plate device.
[0027] Below the coiler plate device, neither the rotary can plate nor the sliver duct get in the way, meaning that the welding torch can be positioned against the cover from below, i.e. along the longitudinal axis outside the base body unproblematically.
[0028] To align the sliver duct, a work station with an opening can be provided. That way, the coiler plate, including the cover arranged on it, can be arranged on a first side of the work station in such a way that it is possible to observe through the opening from the second side of the work station, opposite the first side, when the outlet aligns flush with the outlet opening. This simplifies the alignment process.
[0029] Once the sliver duct has been aligned, it can be secured. To do so, a clamping device, which is fastened to the work station, for example, can be provided, for instance. The sliver duct can also be secured directly to the coiler plate. In particular, the upper duct section can be connected to the plate holder with a force-fit, for example, using an adhesive connection or at least a further welded connection. To do so, a grouting compound, in particular a synthetic resin grouting compound, can be used to fill a space formed between the upper duct section and the plate holder, which, in particular, can be designed to be ring-shaped. A seal or a sealing ring can be inserted into the space beforehand. For the further welded connection, a metal ring, for example, which is welded radially on the inside to the upper duct section, can be inserted into the space. The metal ring can be connected to the plate holder radially on the outside, for example, by welding, gluing or clamping.
[0030] To align the sliver duct, an image capture device can be provided, which is positioned outside the coiler plate device and directed at the outlet opening. If the work station equipped with the opening is provided, the image capture device can be directed through the opening at the coiler plate device. The image capture device can include a camera or multiple cameras.
[0031] The image capture device can be connected to an image output device. This way, the captured images can be displayed in real time on the image output device. The image output device can be a commercially available monitor. This allows an operator to monitor the outlet of the sliver duct continuously, and make adjustments in order to guarantee an optimum alignment.
[0032] The process of alignment can also be performed automatically. The image capture device can be connected to a robotics device which is configured to align the sliver duct in relation to the cover. This way, the robotics device receives real-time images from the image capture device. For example, visual markers which are observed by the image capture device and evaluated by a control unit of the robotics device while aligning the sliver duct, can be arranged on the lower duct section, in particular the end face and / or the cover. In addition, the robotics device can be configured to produce the welded connection and the optional further welded connection.
[0033] The welded connection can be generated using arc welding, in particular TIG welding. Other welding processes are also possible, as already described above. The surface of the welded connection can be ground and / or polished.
[0034] A balancing weight can be arranged on the base body, along the through-opening.
[0035] Further measures which improve the invention, are illustrated in more detail in the following together with the description of a preferred example of the invention based on the figures. The figures include the same or derived details with the same reference numerals.Brief Description of the Drawings
[0036] What the figures show:
[0037] Figure 1 A coiler plate device in accordance with a first embodiment of the invention with a spinning can arranged underneath it in a longitudinal section; wherein an upper duct section of a sliver duct and a plate holder of a coiler plate are connected to each other using a grouting compound, and wherein a lower duct section of the sliver duct and a cover, arranged on the coiler plate, are connected to each other by a welded connection positioned on a shoulder;
[0038] Figure 2 A perspective view of the coiler plate device from diagonally above;
[0039] Figure 3 A plan view of the coiler plate device from below;
[0040] Figure 4 A magnified partial illustration of the coiler plate device from figure 1 in the area of an outlet of the sliver duct;
[0041] Figure 5 A detailed view of the area circled in figure 4;
[0042] Figure 6 A flow diagram of a method for manufacturing the coiler plate device;
[0043] Figure 7 Aligning the sliver duct on the coiler plate using an image capture device
[0044] Figure 8 Producing the welded connection between an opening edge of the cover which encloses the outlet opening, and an overlapping section of the sliver duct which covers the outlet opening;
[0045] Figure 9 A magnified partial illustration in the area of the outlet of the sliver duct of a coiler plate device in accordance with a second embodiment of the invention which differs from figure 1 in that the welded connection is positioned in a joining gap;
[0046] Figure 10 A coiler plate device in accordance with a third embodiment of the invention with a spinning can arranged underneath it in a longitudinal section, wherein, unlike in figure 1, the upper duct section of the sliver duct and the plate holder of the coiler plate are connected to each other by further welded connections;
[0047] Figure 11 A coiler plate device in accordance with a fourth embodiment of the invention with a spinning can arranged underneath it in a longitudinal section, wherein, unlike the second embodiment in accordance with figure 9, the upper duct section of the sliver duct and the plate holder of the coiler plate are connected to each other by further welded connections, as shown in figure 10; and
[0048] Figure 12 A spinning room preparation machine according to the invention with the schematic view of the coiler plate device.
[0049] Description of the Embodiments
[0050] In order to make the aforementioned objects, features and advantages of the present invention clearer and more understandable, in the following, the specific embodiments of the present invention are described in detail in conjunction with the enclosed drawings. Many specific details are presented in the following description in order to make full understanding of the present invention easier. However, the present invention can also be implemented in many other ways which differ from those described here, and the specialist can make similar improvements without violating the meaning of the invention, meaning that the present invention is not restricted by the following disclosed specific embodiments.
[0051] In the description of the present invention, it must be understood that the terms "at the top" , "at the bottom" , "at the front" , "at the rear" , "on the left" , "on the right" , "vertically" , "horizontally" , "top" , "bottom" , "inside" , "outside" and similar terms indicate the orientation or the positional relationships based on the orientation and positional relationships shown in the enclosed drawings, and only serve to make description of the present invention easier, and do not indicate or suggest that the named device or component must have a certain orientation, or be engineered and operated in a certain way, and accordingly must not be understood as a restriction of the present invention.
[0052] In the description of the present invention, it is assumed that the terms "first" and "second" are only used for descriptive purposes, and must not be understood in such a way that a relative significance or an implicit specification of the number of technical characteristics is intended. Thus, a feature which is defined with the terms "first" , "second" , can explicitly or implicitly include at least one such feature. In the description of the present invention, "multiple" means at least two, e.g. two, three etc., if not expressly or specifically qualified in another way.
[0053] In embodiments of the present invention, the terms "mounted" , "joined" , "connected" , "fixed" etc., if not expressly or specifically qualified in another way, must be understood in a broad sense, e.g. as a fixed connection, a removable connection or a single-piece connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection using an intermediate medium, a connection within the two elements or an interaction between the two elements. The specific meanings of the aforementioned terms in embodiments of the present invention must be understood for the specialist on a case-by-case basis.
[0054] Figures 1 to 4 show a coiler plate device 1 or individual details of it in accordance with a first embodiment. The coiler plate device 1 is used to coil fibre slivers in spinning cans 2, and, for this purpose, can be driven rotationally in a manner known per se around its longitudinal axis 3.
[0055] Figure 1 shows a section through the coiler plate device 1 and, underneath it, a spinning can 2 is implied. The coiler plate device 1 includes a coiler plate 4, a cover 5 and a sliver duct 6 with an inlet 7 and an outlet 8 for the fibre sliver (not shown) . The fibre sliver thus passes through the sliver duct 6 in a conveying direction 50 from the inlet 7 to the outlet 8.
[0056] The coiler plate 4 is preferably a cast part, for example, made of aluminium or an aluminium alloy, and comprises a plate holder 9 which extends along the longitudinal axis 3, and a plate-shaped base body 10. An upper duct section 11 of the sliver duct 6 which comprises the inlet 7, is arranged centrally in the coiler plate 4 and connected to the plate holder 9. Specifically, upper duct section 11 can be arranged concentrically to the longitudinal axis 3, and configured to be hollow and cylindrical. The plate holder 9 can comprise a through-bore 12 which extends along the longitudinal axis 3, into which the upper duct section 11 is inserted. The upper duct section 11 and the plate holder 9 can be connected to each other with a force-fit connection. To do so, when manufacturing the coiler plate device 1, a ring-shaped space 13 formed between the two connection partners 9, 11, in which a sealing ring (not shown) can also be arranged, can be filled with grouting compound 14, which, when cured, connects the two connection partners 9, 11 to each other permanently with a force-fit connection.
[0057] A lower duct section 15 of the sliver duct 6 which comprises the outlet 8, reaches through a through-opening 16 formed in the base body 10 without contact. Between the sliver duct 6 and the coiler plate 4 itself, there is no immediate force-fit connection. The sliver duct 6 is only immediately connected to the cover 5 in the lower duct section 15, and specifically, by a welded connection 17.
[0058] Figure 2 in particular shows that a balancing weight 30 is arranged on the base body 10 along the though-opening 16. The balancing weight 30 can be connected to the base body 10 using and adhesive connection, welded connection, screw connection (as shown in figure 2) or similar, or a combination of these connections. The balancing weight 30 is used to compensate for imbalances in the coiler plate device 1 which can be driven rotationally around the longitudinal axis 3. This way, the balancing weight 30 can compensate for the missing weight of what is otherwise the commonly used grouting compound, for instance. In addition, experience has shown that balancing using the balancing weight 30 can be achieved much more simply and precisely in comparison to the use of grouting compound. In particular, the balancing weight 30 can be made of a material with a density which is higher than the density of the material of the base body 10. The base body 10, i.e. the coiler plate 4, can be a cast part made of aluminium or an aluminium alloy, for example. The balancing weight 30 can then be made of alloy steel or be a cast iron part, for example. Generally possible but not required, and also for manufacturing reasons, for instance, not advantageous, is that the sliver duct 6 is grouted in the through-opening 16 in addition to the welded connection 17, meaning that a cured grouting compound can also be in place in a hollow space 27 around the sliver duct 6 which is closed off by the cover 5, in the through-opening 16. In this case, no balancing weight 30 is required.
[0059] The sliver duct 6 can be a stainless steel hollow section, for example, and can feature a wall thickness of around 1.0 to 4.0 millimetres. The fibre sliver enters into the upper duct section 11 of the sliver duct 6 via the inlet 7 which is arranged concentrically to the longitudinal axis 3, and exits again in the lower duct section 15 of the sliver duct 6 via the outlet 8 which is arranged eccentrically to the longitudinal axis 3. A middle duct section 18 of the sliver duct 6 which connects the two duct sections 11, 15 with each other, is curved spatially accordingly.
[0060] The cover 5 is arranged resting on a lower face 19 of the base body 10 which faces away from the plate holder 9 and extends across the longitudinal axis 3, and can be fastened to the base body 10 by gluing it and / or by positive locking. An edge 20 of the cover 5 can be curved upwards and rest on the base body 10 at the side. The cover 5 is made of stainless steel sheet, for example, and can feature a sheet thickness of around 0.5 to 2 millimetres. A lower face 21 of the cover 5 which faces away from the base body 10, defines a first plane 22, in particular downwards with the coiler plate device 1, i.e. closes in a direction from the plate holder 9 towards the cover 5.
[0061] In particular, figures 3 to 5 show that an all-round outlet opening 24 which is enclosed by an opening edge 23 of the cover 5, and is arranged overlapping the through-opening 16 configured in the base body 10, is configured in the cover 5. The outlet 8 is arranged flush with the outlet opening 24. The outlet opening 24 and the outlet 8 can each comprise at least one roughly oval contour, as can be seen in figure 3. Their contours are the same, with the difference that the outlet opening 24 has a greater area than the outlet 8.
[0062] The lower duct section 15 has an end face 25 with which the sliver duct 6 closes with its lower duct end 15. The end face 25 is positioned together with the outlet 8 at a second plane 26 which is arranged parallel to the first plane 22 and set back relative to it in the direction towards the plate holder 9, i.e. upwards. The two planes 22, 26 can be arranged vertical to the longitudinal axis 3.
[0063] Figure 5 illustrates a magnified view of an area around the joint which is circled in figure 4 by the circle 35. Specifically, the sliver duct 6 can abut on, i.e. touch an upper face 28 of the cover 5 which faces the base body 10 with its end face 25. The outlet opening 24 protrudes beyond the outlet 8 which is limited by an inner duct wall 29, laterally or radially to the longitudinal axis 3 so that the end face 25 overlaps the outlet opening 24 partially. Accordingly, a radially external section of the end face 25 which is also referred to as a supporting section 31, is supported on the upper face 28 of the cover 5. A radially internal section of the end face 25 which is also referred to as the overlapping section 32, protrudes beyond, i.e. overlaps the outlet opening 24. A shoulder 33 is thus formed between the overlapping section 32 of the end face 25 and the opening edge 23 of the cover 5 against which the welded connection 17 is positioned. The welded connection 17 is thus arranged along the longitudinal axis 3, outside of the coiler plate 4, where it protrudes inwards into the outlet opening 24 in the area between the first plane 22 and the second plane 26 radially to the longitudinal axis 3. It is understood that, when welding, the joint is always fused a little in order to produce the welded connection 17. In this respect, the figures 4 and 5 are simplified illustrations which show the basic interaction of the components and their positioning to each other. The welded connection 17 remains covered by the overlapping section 32 of the sliver duct 6 in the direction of conveying 50 of the fibre sliver. A surface 34 of the welded connection 17 is configured as ground and polished.
[0064] Figure 6 shows a flow diagram for the method of manufacturing the coiler plate device 1 which begins with the start 40.
[0065] In step 41, the cover 5 is arranged and fastened to the lower face 19 of the base body 10. The sliver duct 6 is placed flush on the upper face 28 of the cover 5 from above. To do so, the upper duct section 11 is inserted in the through-bore 12 of the plate holder 9. The lower duct section 15 reaches through the through-bores 16 in the base body 10 and is supported from above on the upper face 28 of the cover 5.
[0066] In step 42, the sliver duct 6 is aligned in such a way that the shoulder 33 is generated between the overlapping section 32 and the opening edge 23. To align the sliver duct 6, an image capture device 36 with at least one camera, which is positioned outside the coiler plate device 1, can be provided. Figure 7 illustrates that the image capture device 36 faces the cover 5 from below and the outlet opening 24 is positioned in a field of vision 49 of a lens of the image capture device 36. The field of vision 49 is indicated by a dotted line. The image capture device 36 can be connected to an image output device 37 so that the alignment can be monitored in real time on the image output device 37, for example, a monitor. This allows an operator or the installation technician responsible for manufacture of the coiler plate device 1 to continuously monitor the alignment of the outlet 8 relative to the outlet opening 24, and make adjustments in order to guarantee optimum alignment with which the shoulder 33 features a shoulder width which is as constant as possible in the circumferential direction.
[0067] In step 43, the sliver duct 6 is secured in its aligned position relative to the coiler plate 4.
[0068] In step 44, the upper duct section 11 is connected to the plate holder 9 with a force-fit connection. To do so, an adhesive connection can be made in the ring-shaped space 13 between the plate holder 9 and the sliver duct 6, for example, by grouting with grouting compound 14.
[0069] In step 45, the welded connection 17 is made. Figure 8 shows how a welding device with its welding torch 38 is positioned against the shoulder 33 from below in order to produce the welded connection 17. The direction from below onto the cover 5, i.e. the shoulder 33, is indicated in figures 7 and 8 with the reference numeral 39. The welding torch 38 can be held at an angle to the direction 39 or parallel to it, depending on the applied welding process. Using a welding process, for example, an arc welding process, the sliver duct 6 and the cover 5 are thus connected permanently to each other. The welded connection 17 can be an all-round, i.e. a continuous welded seam. Given that the sliver duct 6 and the cover 5 can be made of stainless steel, a welded connection can be made unproblematically using arc welding.
[0070] In step 46, the surface 34 of the welded connection 17 is ground and then polished.
[0071] In step 47, the coiler plate device 1 is balanced by attaching the balancing weight 30 along the through-opening 16 on the coiler plate 4.
[0072] At the end of 48, the coiler plate device 1 has been manufactured.
[0073] The sequence of the aforementioned steps can also be a different one to that described previously. For example, the welded connection 17 can be produced before grouting the sliver duct 6 in the through-bores 12 of the plate holder 9. As a further example, the balancing weight 30 can also be attached before grinding and polishing the surface 34 of the welded connection 17. Alongside these changes in process, which are only examples, other technically useful sequences are possible and conceivable.
[0074] Figure 9 shows a coiler plate device 100 in accordance with a second embodiment which is largely consistent with the coiler plate device 100 in accordance with the first embodiment, so that reference is made to the above description in relation to the common features. The difference is in the connection between the sliver duct 6 and the cover 5.
[0075] The end face 25 of the lower duct section 15 is positioned at the plane 22 which is defined by the lower face 21 of the cover 5 which faces away from the base body 10. The outlet 8 and the outlet opening 24 are both positioned at plane 22. In other words, the sliver duct 6 thus closes flush with the lower face 21 of the cover 5 on the outlet side. Furthermore, the lower duct section 15 is inserted into the outlet opening 24 with clearance 102 so that between the lower duct section 15 and the opening edge 23 an all-round joining gap 101 is formed in which the welded connection 17, which is preferably all-round and continuous, is positioned, i.e. inserted. The surface 34 of the welded connection 17 is configured ground and polished.
[0076] The coiler plate device 100 can be manufactured in the same way as the method for manufacturing the coiler plate device 1 in accordance with figure 6. In this case, too, the welding torch 38 is positioned in the direction 39 from below. The welded connection 17 is positioned in the joining gap 101 and is placed against the opening edge 23 and against a duct outer wall 51 of the sliver duct 6 which faces the opening edge 23. Figure 10 shows a coiler plate device 200 in accordance with a third embodiment which is largely consistent with the coiler plate device 1 in accordance with the first embodiment, so that reference is made to the above description in relation to the common features. The difference is in the connection between the sliver duct 6 and the plate holder 9 of the coiler plate 4.
[0077] Instead of grouting the upper duct section 11 in the through-bore 12 of the plate holder 9 using the grouting compound 14, as shown in figure 1, a plate 201 is provided which is a ring-shaped design, and can be arranged in the ring-shaped space 13. The plate 201 can be welded to the sliver duct 6 radially inside in relation to the longitudinal axis 3, and radially on the outside to the plate holder 9. Preferably, the plate 201 is a metal plate. Instead of such a further welded connection 202, 203, in general an adhesive connection can also be used.
[0078] The coiler plate device 200 can be manufactured in the same way as the method for manufacturing the coiler plate device 1 in accordance with figure 6. The difference is in the implementation of step 44 only. Instead of grouting with grouting compound 14, the metal plate 201 is welded on. A, or the, welding torch 38 is positioned in the direction 52 from above.
[0079] Figure 11 shows a coiler plate device 300 in accordance with a fourth embodiment which is largely consistent with the coiler plate device 100 in accordance with the second embodiment and the coiler plate device 200 in accordance with the third embodiment, so that reference is made to the above description in relation to the common features. The sliver duct 6 is welded to the plate holder 9 with its upper duct section 11, as explained in the context of the third embodiment in accordance with figure 10. Furthermore, the sliver duct 6 is welded to the cover 5 with its lower duct section 15, and the welded connection 17 is positioned in the joining gap 101, as explained in the context of the second embodiment in accordance with figure 9.
[0080] Figure 12 shows spinning room preparation machine 400 in accordance with an embodiment of the invention with the coiler plate device 1 according to the invention. In figure 12, the coiler plate device is denoted with the reference numeral 1 as an example only; however, it could equally be the coiler plate device 100 or 200 or 300.
[0081] The spinning room preparation machine 400 is shown here as an example only as a carding machine, e.g. Trützschler card TC. The spinning room preparation machine 400 comprises a coiling device 402 on the outlet side in the conveying direction 50 of the fibre sliver 401 for coiling fibre sliver 401 in the spinning can 2. The coiling device 402 includes the coiler plate device 1 which can be driven rotationally around its longitudinal axis 3 using a drive (not shown) . If, in a manner known per se, the can 2 positioned underneath the coiler plate device 1 is rotated at the same time, the fibre sliver 401 is coiled in a cycloid pattern in the can 2, meaning that the can 2 can be filled evenly with the fibre sliver 401.
[0082] The above versions are only a preferred embodiment of the present invention, and do not represent a restriction of the present invention in any way. Every specialist can make many possible changes and modifications to the technical principle of the present invention, without deviating from the technical principle of the present invention, by using the method and the technical content described above, or modifying it in an equivalent manner with equivalent changes. Accordingly, any equivalent changes which relate to the form, the construction and the principle of the present invention, without deviating from the technical principle of the present invention, fall under the scope of protection of the present invention.
[0083] Reference numerals
[0084] 1 Coiler plate device 37 Image output device
[0085] 2 Spinning can 38 Welding torch
[0086] 3 Longitudinal axis 39 Direction
[0087] 4 Coiler plate 40 Start
[0088] 5 Cover 41 Step
[0089] 6 Sliver duct 42 Step
[0090] 7 Inlet 43 Step
[0091] 8 Outlet 44 Step
[0092] 9 Plate holder 45 Step
[0093] 10 Base body 46 Step
[0094] 11 Duct section 47 Step
[0095] 12 Through-bore 48 End
[0096] 13 Ring-shaped space 49 Field of vision
[0097] 14 Grouting compound 50 Conveying direction
[0098] 15 Duct section 51 Duct outer wall
[0099] 16 Through-opening 52 Direction
[0100] 17 Welded connection
[0101] 18 Duct section 100 Coiler plate device
[0102] 19 Lower face 101 Joining gap
[0103] 20 Edge 102 Clearance
[0104] 21 Lower face
[0105] 22 Plane 200 Coiler plate device
[0106] 23 Opening edge 201 Plate
[0107] 24 Outlet opening 202 Welded connection
[0108] 25 End face 203 Welded connection
[0109] 26 Plane
[0110] 27 Hollow space 300 Coiler plate device
[0111] 28 Upper face
[0112] 29 Duct inner wall 400 Spinning room preparation machine
[0113] 30 Balancing weight 401 Fibre sliver
[0114] 31 Supporting section 402 Coiling device
[0115] 32 Overlapping section
[0116] 33 Shoulder
[0117] 34 Surface
[0118] 35 Circle
[0119] 36 Image capture device
Claims
1.Coiler plate device (1; 100; 200; 300) for a spinning room preparation machine (400) , wherein the coiler plate device (1; 100; 200; 300) comprises a coiler plate (4) with a plate holder (9) which extends along a longitudinal axis (3) and a base body (10) , a cover (5) which is arranged on a lower face (19) of the base body (10) which extends across the longitudinal axis (3) , and comprises an opening edge (23) which encloses an outlet opening (24) formed in the cover (5) , and includes a sliver duct (6) for fibre sliver with an upper duct section (11) which comprises an inlet (7) and a lower duct section (15) which comprises an outlet which (8) is arranged flush to the outlet opening (24) , wherein the upper duct section (11) is connected to the plate holder (9) , and the lower duct section (15) reaches through a through-opening (16) in the base body (10) , and is connected to the cover (5) by a welded connection (17) , characterised in that the welded connection (17) is placed against the opening edge (23) .2.Coiler plate device (1; 100; 200; 300) according to claim 1, characterised in that the welded connection (17) protrudes inwards into the outlet opening (24) radially to the longitudinal axis (3) .3.Coiler plate device (1; 100; 200; 300) according to claim 1 or 2, characterised in that the welded connection (17) is arranged along the longitudinal axis (3) outside of the coiler plate (4) .4.Coiler plate device (1; 100; 200; 300) according to claims 1 to 3, characterised in that the shape of the contour of the outlet opening (24) matches the shape of the contour of the outlet (8) , wherein the outlet opening (24) has a greater area than the outlet (8) .5.Coiler plate device (1; 200) according to one of the claims 1 to 4, characterised in that the sliver duct (6) abuts on an upper face (28) of the cover (5) which faces the base body (10) , with an end face (25) of the lower duct section (15) .6.Coiler plate device (1; 200) according to claim 5, characterised in that the outlet opening (24) protrudes beyond the outlet (8) at the side, wherein the end face (25) partially covers the outlet opening (24) so that between the end face (25) and the opening edge (23) a shoulder (33) is formed against which the welded connection (17) is positioned.7.Coiler plate device (100; 300) according to one of the claims 1 to 4, characterised in that an end face (25) of the lower duct section (15) is positioned at a plane (22) which is defined by a lower face (21) of the cover (5) which faces away from the base body (10) .8.Coiler plate device (100; 300) according to claim 7, characterised in that the lower duct section (15) is inserted into the outlet opening (24) with clearance (102) so that between the lower duct section (15) and the opening edge (23) an all-round joining gap (101) is formed in which the welded connection (17) is positioned, i.e. inserted.9.Coiler plate device (100; 300) according to claim 8, characterised in that there is clearance (102) of at least 0.1 millimetres and a maximum of 1.5 millimetres.10.Coiler plate device (1; 100; 200; 300) according to one of the claims 1 to 9, characterised in that a surface (34) of the welded connection (17) is ground and polished.11.Coiler plate device (1; 100; 200; 300) according to one of the claims 1 to 10, characterised in that the welded connection (17) is configured as an arc welding connection, in particular a TIG welded connection.12.Coiler plate device (1; 100; 200; 300) according to one of the claims 1 to 11, characterised in that between the sliver duct (6) and the base body (10) there is no immediate force-fit connection.13.Coiler plate device (1; 100; 200; 300) according to one of the claims 1 to 12, characterised in that a balancing weight (30) is arranged on the base body (10) along the through-opening (16) .14.Coiler plate device (1; 100; 200; 300) according to claim 13, characterised in that the balancing weight (30) is made of a material which has a higher density than the density of the material of the base body (10) .15.Coiler plate device (1; 100; 200; 300) according to claim 13 or 14, characterised in that the balancing weight (30) is glued, welded, screwed etc. to the base body (10) at least in sections.16.Coiler plate device (1; 100; 200; 300) according to one of the claims 1 to 15, characterised in that the upper duct section (11) is arranged concentrically to the longitudinal axis (3) and is configured to be hollow and cylindrical.17.Coiler plate device (1; 100; 200; 300) according to one of the claims 1 to 16, characterised in that the plate holder (9) comprises a through-bore (12) , which extends along the longitudinal axis (3) , in which the upper duct section (11) is inserted.18.Coiler plate device (1; 100; 200; 300) according claim 17, characterised in that the upper duct section (11) is connected to the plate holder (9) with a force-fit connection.19.Coiler plate device (200; 300) according to claim 176 or 18, characterised in that the upper duct section (11) is connected to the plate holder (9) by a further welded connection (201, 202) .20.Spinning room preparation machine (400) with a coiling device for coiling fibre sliver in a spinning can (2) , characterised in that the coiling device comprises a coiler plate device (1; 100; 200; 300) according to one of the claims 1 to 19.21.Method for manufacturing a coiler plate device (1; 100; 200; 300) according to one of the claims 1 to 19, with the steps:- Arrangement (31) of the cover (5) on a lower face (19) of the base body (10) ;- Insertion (31) of the sliver duct (6) into the through-opening (16) in the base body (10) ;- Alignment (42) of the sliver duct (6) so that the outlet (8) of the sliver duct (6) aligns flush with the outlet opening (24) in the cover (5) ;- Securing (43) of the aligned sliver duct (6) ;- Connection (45) of the sliver duct (6) to the cover (5) by producing a welded connection (17) , wherein a welding torch (38) of a welding device is positioned against the cover (5) along the longitudinal axis (3) outside the base body (10) , and the opening edge (23) is welded to the lower duct section (15) .22.Method according to claim 21, characterised in that, to align (42) the sliver duct (6) , an image capture device (36) is provided which is positioned outside the coiler plate device (1; 100; 200; 300) and pointed at the outlet opening (24) .23.Method according to claim 22, characterised in that the image capture device (36) is connected to an image output device (37) .24.Method according to claim 22 or 23, characterised in that the image capture device (36) is connected to a robotics device and is configured to align the sliver duct (6) relative to the cover (5) .25.Method according to claim 24, characterised in that the robotics device is configured to produce the welded connection (17) .26.Method according to the claims 21 to 25, characterised in that the welded connection (17) is generated by arc welding, in particular TIG welding.27.Method according to one of the claims 21 to 26, characterised in that a surface (34) of the welded connection (17) is ground and polished (46) .28.Method according to one of the claims 21 to 27, characterised in that a balancing weight (30) is arranged (47) on the base body (10) along the through-opening (16) .29.Method according to one of the claims 21 to 28, characterised in that the upper duct section (11) is connected to the plate holder (9) with a force-fit connection (44) , for example, using an adhesive connection or a further welded connection (202.203) .
Citation Information
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