EP1961685B1 - Device for transferring a lap coil to a transport vehicle - Google Patents

Description

The invention relates to a device for transferring a, dispensed by a winding machine cotton wool on a receiving trough of a transfer point positioned at the transport vehicle, the device consists of a pivotable about adjusting means about a fixed horizontal axis recording, whose pivot axis - Regarding the dispensing direction of the lap roll - is mounted in the front end portion of the receptacle and at least one means is provided, via which the lap roll is positioned on the receptacle in a specific position to the pivot axis during the transfer.

For the transfer of formed on a winding forming machine wadding to subsequent combing machines for further processing of the winding various transport methods are known. So z. B is a transport method in the DE 198 46 915 A1 described, wherein the wound of the winding machine dispensing cotton roll (called "winding") are put together on a clipboard to a winding group with eight coils, which is then transferred with an overhead conveyor by means of a crane track to the following combing machines. This is a convenient solution but relatively expensive and not feasible in every spinning mill.
Another and inexpensive solution is z. B. the transport of winding groups on a winding carriage, which, for example, in the EP 414 012 A1 is described and shown. In this case, successively four rolls, which are delivered from the winding forming machine, transferred to a trough of a trolley. In this case, to move a winding group of the trolley at the delivery point of the winding-forming machine each shifted by a certain amount from its position in its longitudinal position, before the subsequent winding is ejected from the machine. Once a group of four coils is on the trolley, it is transferred to the subsequent combers and a new and empty trolley provided.
The illustrated embodiment of the winding transport by means of the trolley allows the establishment of a semi-automatic winding transport, wherein z. B. the loading and unloading of the winding carriage can be done substantially automatically while the displacement between the machines can be done by hand. Of course, solutions are possible, such. B. in the EP 349852 is shown and described, wherein the entire process of the winding transport by the transport vehicle runs fully automatically.
The known solutions are adapted to the fact that the delivery height of the winding forming machine and the receiving height of the following combers are coordinated.
However, as far as the delivery height on the winding forming machine and the receiving height on the comber differ, additional considerations should be made as to how this height difference can be compensated. So z. B. in the DE 195 19 144 A1 proposed that the support frame, on which the rolls are delivered from the winding forming machine, is raised via specially mounted lifting cylinder before the rolls are transferred by pivoting the support frame via a further pivoting cylinder on the recording of the trolley. With this device, it would also be possible (not described in the publication) to approach different delivery heights for the support frame with a corresponding control, if transport vehicles for the winding transport with different receiving heights are in use. This can be z. B. be necessary if the to be stocked following combing machines are provided with different receiving heights for winding takeover. This case occurs when z. B. the combers are equipped with different devices for the tracking of spare wraps. It may also be necessary that comber groups of different series, or different years of construction with the same transport system must be supplied with windings, which also may be present different recording heights for receiving wraps on the combing machines. With the, in the DE 195 19 144 A1 proposed embodiment, it is in principle possible that the output from the winding machine winding can be transferred to different receiving heights of provided dolly.
Another possibility would be to equip the trolley with a lifting device to compensate for the different heights. Likewise, appropriate ramps for the transport vehicle could be provided on the combers be about which different recording heights can be compensated at the combers.
The known solutions shown and the solutions described to compensate for different recording heights for the winding on combers are relatively expensive and require correspondingly expensive guides and controls.
Based on the requirement that dolly with different recording heights are to load with winding of the winding forming machine, the task is to propose a simple and cost-effective solution.

This object is achieved by proposing that the means by which the lap roll is positioned on the pivotally mounted receptacle in a specific position to the pivot axis before and during the transfer, is adjustably mounted in the receptacle and with at least one actuating means in combination is about which the position of the means for pivot axis of the recording is adjustable and fixable.
With the proposed device, it is possible in a simple and cost-effective way to load dolly with different recording heights with winding.

Furthermore, it is proposed that the means - viewed in the discharge direction of the lap roll - consists of a, projecting into the movement path of the discharged cotton roll boundary wall, which is arranged in the end region of a sloping guide surface of the receptacle for the winding formed by the winding machine winding.
About the, in the direction of the pivot axis obliquely sloping guide surface of the ejected coil is rolled by gravity and under the influence of the ejection force on the guide surface in the direction of the boundary wall until it comes to rest there and is held under the action of gravity, or positioned. The orientation of the boundary wall is chosen so that after the triggering of the delivery process of the roll to a provided dolly and upon reaching a certain pivot angle of the recording about the pivot axis, the winding by its gravity on the surface of the boundary wall in the direction of receiving the provided trolley rolls.

Furthermore, it is proposed that the means - seen in the discharge direction of the lap roll - consists of an obliquely sloping guide surface for receiving the, from the winding forming machine delivered winding and the guide surface at its front end a, projecting into the trajectory of the dispensed coil boundary wall having.
With this design it is ensured that in an adjustment of the boundary wall and the guide surface is moved with, on which rests the winding. As a result, the winding is not displaced during the adjustment process on the guide surface, whereby no upsets in the outer winding layer arise.
In order to guide the winding laterally during the pivotal movement of the receptacle and during the transfer to receiving trough of the transport vehicle, it is proposed to provide the boundary wall with lateral guide surfaces for lateral guidance. These guides can be designed as guide surfaces.
In order to laterally guide the winding on the receptacle during the ejection process, it is further proposed that the guide surface be provided with lateral guide surfaces.
For adjustable mounting of the boundary wall, it is proposed that the guide surface with the boundary wall be mounted on guides attached to the guide surface in guides of the receptacle.

Further embodiments and advantages of the invention can be found in the following and described embodiments.

Fig. 1

eine schematische Seitenansicht einer Ausführung nach dem bekannten Stand der Technik

Fig. 2

eine vergrösserte Seitenansicht der Übergabestelle mit einer erfindungsgemässen Ausführung eine verstellbaren Begrenzungswand

Fig. 3

eine Draufsicht X nach Fig. 2

Fig. 4

eine weiteres Ausführungsbeispiel einer erfindungsgemässen Übergabestelle entsprechend Fig. 2

Fig. 5

eine Draufsicht X1 nach Fig. 4

Fig. 6

eine schematische Draufsicht der Wickel bildenden Maschine mit einem in Bereitschaft stehenden Transportfahrzeug mit einer Steuereinheit

Show it:

Fig. 1

a schematic side view of an embodiment according to the known prior art

Fig. 2

an enlarged side view of the transfer point with an inventive embodiment of an adjustable boundary wall

Fig. 3

a top view X after Fig. 2

Fig. 4

a further embodiment of an inventive transfer point accordingly Fig. 2

Fig. 5

a top view X1 after Fig. 4

Fig. 6

a schematic plan view of the winding forming machine with a standby transport vehicle with a control unit

Fig. 1 shows a schematic side view of a known embodiment of the DE 195 19 144 A1 wherein the winding W, which is discharged via a schematically shown inclined running surface of a winding forming machine, or a preparation machine 2 to a storage unit 3. The storage unit 3 is provided with a support frame 31 mounted about a pivot axis 341, which has an unspecified receiving trough for the winding W. The pivoting of the support frame 31 about the pivot axis 341 via a pivot cylinder 33 which is fixedly mounted in the lower region of the storage unit 3. In this case, the free end of the pivoting cylinder 33 engages the free end of the support frame 31. The pivot axis 341 is connected to one or two lifting cylinders 34 in connection, via which the pivot axis 341 is adjustable with respect to the storage unit 3 in its vertical position.

In the in FIG. 1 shown position of the pivot axis 341 of the support frame 31 is pivoted by extending the pivot cylinder 33 about the pivot axis 341. In this case, the winding W resting on the support frame 31 is transferred to a transport vehicle 4 positioned on the preparation machine 2. In the transfer, which is indicated by an arrow, the winding W is transferred into a trough 43 of a pivotally mounted support frame 41. Below the support frame 41, a conveyor belt 42 is arranged in the transport vehicle 4, via which the winding W is moved along the transport vehicle to make the transfer point again to take over a further roll. By this process, a total of four reels W are charged in the present example to the transport vehicle 4, which then transferred the reels to subsequent combers. When transferring the winding W from the storage unit 3 to the transport vehicle 4, the transport vehicle remains in a defined transfer position. The positioning of the transport vehicle to the transfer point of the storage unit 3 is performed by the data light coupling 24 and 474, which are each in communication with a control unit 23, and 47 respectively. For the transfer of the winding W to subsequent combing machines the transport vehicle 4 is supported and guided by wheels 443 on the floor 7.

FIG. 2 shows a partial view accordingly FIG. 1 with an embodiment of the transfer device claimed according to the invention, in which, for example, according to the complex and expensive displacement of the pivot point of the support frame FIG. 1 can be waived.

The storage unit 3 in FIG FIG. 2 consists of a receptacle 14 which is hinged about an axis of rotation 15 pivotally mounted on the storage unit 3. The pivoting of the L-shaped receptacle 14 via a cylinder Z1, which is connected on the one hand to the frame R of the storage unit 3 and on the other hand via a pivot axis 8 with the receptacle 14. The pivot axis 8 is, as indicated schematically, connected via an unspecified tab with the receptacle 14.

The control of the cylinder Z1 via a valve V1, which is acted upon by a pressure source P1. The control of the valve V1 is performed by the control unit ST, which is connected via the line L5 with the valve V1 in combination. The receptacle 14 has an obliquely sloping in the direction of the axis of rotation 15 guide surface 16 on which the winding W is launched during the ejection from the winding forming machine 2. Due to the obliquely sloping arrangement of the guide surface 16 of the discharged roll W rolls in the direction of the axis of rotation 15 and meets at the end of the guide surface on a boundary wall 18, which is approximately aligned in the vertical direction and slidably mounted in the longitudinal direction of the receptacle 14. The displacement of this boundary wall 18, which simultaneously positions the winding W before transfer to a subsequent transport vehicle 4 in the receptacle 14, via a cylinder Z2, which is articulated via a pivot axis 20 in the lower region of the receptacle 14. The pivot axis 20 opposite free end of the cylinder Z2 is connected to a part of the boundary wall 18, which protrudes through openings 01 and 02 of the guide surface 16, as for example in the plan view X after FIG. 3 can be seen. At the same time, the boundary wall 18 can be guided via guide pins 21 in side walls 25, 26 of the receptacle 14. Here are the guide pins 21 fixedly connected to the boundary wall 18 and each project through a guide slot 22 which are mounted in the side walls 25, 26.
In FIG. 2 two different positions of the boundary wall 18, or 18 'are shown. The position for the boundary wall 18 'is then used when the winding W' has to be transferred to a higher receiving height E 2 of the receiving trough 28 of the provided transport vehicle 4. The displacement of the boundary wall 18 in the position 18 'can be done before the delivery of the lap roll W on the guide surface 16. After the ejected lap roll W, W 'in the receptacle 16 is positioned in its corresponding position on the boundary wall 18, or 18', the recording can be converted into the dashed position by actuating the cylinder Z1 via the valve V1. In this position, the boundary wall 18 assumes an obliquely in the direction of the transport vehicle 4, or the receiving trough 28 sloping position, whereby in consequence of the gravity of the winding W, W 'is automatically transferred to the receiving trough 28 of the transport vehicle 4.

The receiving trough 28 consists of spaced apart and along the transport vehicle 4 arranged shafts 35, 36, which are connected to one another via a transverse strut 37. In this case, for example, the shaft 36 is pivoted about the axis of the shaft 35 via the transverse strut 37. About the dash-dotted schematically shown lower pivot position of the shaft 36 of the transfer process of the winding W is triggered at the following combing machine. Further details and details of this design are published EP 414 012 B1 which will not be discussed further here.

For monitoring and controlling the transfer process of the winding to the transport vehicle 4 sensors S1-S3 are mounted. The sensor S1 monitors whether a winding W, W 'is present in the receptacle 14. Also monitors the sensor S2, the receiving point on the transport vehicle 4 and reports whether a roll W, W 'is already in the receiving trough 28. The sensors S1, S2 are connected via the lines L1, L2 to the control unit ST. As indicated schematically, the control unit ST also communicates with the devices of the winding-forming machine 2.

On the trolley 4 one or more markers 9 is present, which are scanned by one or more sensors S3. The sensor S3 is connected via the line L3 to the control unit ST. On the one hand the position of the trolley 4 can be scanned to the memory unit 3 via the markers 9, or by means of the sensor S3 and on the other hand it is also possible to transmit information about the type (location of the receiving height E1, E2) of the transport vehicle 4 to the control unit ST , D. h., Depending on the position of the receiving height E1, E2, the boundary wall 18 is positioned for the winding transfer accordingly.

In the example of FIG. 6 in which a plan view of the system is shown schematically, the attachment of the sensors S1-S3 is shown again. In addition to this shows the FIG. 6 a conveyor rail 10 which is equipped with drive means not shown in detail, which are driven by a drive A. The drive A is controlled by the control unit ST. The drive elements (eg, a belt or a chain) within the conveyor rail 10 are connected, for example, to a bolt 11, which is displaceably guided in the longitudinal direction of the conveyor rail 10.
However, it is also another device for moving the trolley conceivable, wherein the displacement can take place via a mounted inside the conveyor rail cylinder, which is in communication with corresponding driving elements, which are provided for coupling with the transport vehicle.
When retracting the transport vehicle 4 in a mounted on the conveyor rail 10 (eg. U-shaped) guide rail 12 engages (in the example shown the Figure 6 ), in the position 11 'befindlicher latch in a corresponding receptacle (not shown) of the transport vehicle 4 a. During the longitudinal displacement of the bolt 11 via the drive elements within the conveyor rail 10, the transport vehicle 4 is displaced discontinuously parallel to the conveyor rail 10. When the transport vehicle 4 enters the guide rail 12, one of the wheels of the transport vehicle, not shown, enters the guide area of the guide rail 12. Upon further longitudinal displacement of the transport vehicle, a subsequent second wheel (not shown) also enters the guide area of the guide rail, thereby now transporting the transport vehicle the conveyor rail 10 is guided exactly.
Instead of guiding the transport vehicle via its wheels in the guide rail 12, another alternative to the guide would be conceivable, wherein the transport vehicle is provided with special guide elements that take over the leadership of the transport vehicle when entering the guide rail. The gradual longitudinal displacement of the transport vehicle is controlled in response to the ejection process of the lap roll from the winding forming machine.
That is, as soon as the winding-forming machine 2 has completed a winding W, it is reported via the sensors S1, S2, respectively, whether the receptacle 14 or the receiving trough 28 is ready to receive a new roll. If this is the case, the boundary wall 18 is correspondingly positioned by means of the cylinder Z2 in accordance with the signals reported by the sensor S3. Now the roll W is ejected and rolls on the guide surface 16 to the boundary wall 18 and is held in this position, by the gravity of the roll. About the cylinder Z1, the receptacle 14 is pivoted in the dot-dash line position, whereby upon reaching this position, the winding W on the surface of the boundary wall 18, bzw.18 'rolls in the direction of the receiving trough 28 and to lie between the shafts 35, 36 comes. The receptacle 14 is then pivoted back into its receiving position and the transport vehicle in the guide rail 12 or over the bolt 11 is shifted by a pitch in the longitudinal direction, so that again a free receiving trough is available. This procedure is carried out until all receiving wells 28 of the transport vehicle are filled with windings, which is also recognized by the control unit ST. In this case, the locking of the bolt 11 is released, whereby the transport vehicle can be manually or automatically removed from the region of the guide rail 12 in order to carry out the transfer of the winding to subsequent combing machines. The bolt 11 is now transferred back to the position 11 'and is ready for the inclusion of a new transport vehicle.

In FIG. 4 together with the associated FIG. 5 a further embodiment is shown, wherein the adjustable positioning means for the winding of a drawer-shaped part (short "drawer 50"), which is slidably mounted within the pivotable receptacle 14 in its longitudinal direction. The drawer 50 also has, as described in the previous example, a boundary wall 18, which, however, parallel to the guide surface 16 of the receptacle 14 has a guide surface 51 which rests directly on the guide surface 16. The guide surface 16 has in its central region a guide slot 52 through which guide elements 54, 55 project, which are fixed to the underside of the guide surface 51 of the drawer 50.

On one of the guide elements 54 engages a cylinder Z2, which is articulated at the opposite end to a pivot axis 20 which is connected via a tab 58 with the guide surface 16 of the receptacle 14. Also via a tab 58, a rotation axis 8 is connected to the guide surface 16 of the receptacle 14, to which a cylinder Z1 is articulated. On the opposite end of the axis of rotation 8 of the cylinder Z1 is hinged to the frame R of the storage unit 3.

For lateral guidance of the roll during takeover and delivery, the drawer 50 is provided with side walls 60, 61, which form an L-shaped design according to the shape of the guide surface 51 with the boundary wall 18. The control of the recording for the transfer process to the receiving trough 28 of the transport vehicle 4 is according to the embodiment according to FIG. 2 , which need not be discussed again here. The control of the cylinder Z1, Z2 and the positioning of the transport vehicle 4 to the transfer point is according to the FIG. 4 , or according to the embodiment according to FIG. 6 , Due to the drawer-shaped design, it is possible that the position of the wadding break seen in the circumferential direction of the roll, always remains at the same position, even if at different receiving heights E1, E2 of the transport vehicle 4, the winding W, W 'must be transferred. This is particularly important when the wraps are delivered to a comber, in which the piecing of a new roll is fully automatic. In this case, the constant position of the end of the wad, regardless of the delivery height of the trolley, is a necessary prerequisite. This is achieved with the following method step:

If a transport vehicle is to be loaded with a take-up height E1, then the boundary wall 18 of the drawer 50 is in the forward position. After receiving a new roll, the receptacle 14 is pivoted about the axis 15 in the position shown in phantom and the winding is transferred to the receiving trough 28 with the receiving height E1.

If, however, a transport vehicle having a take-up height E2 with winding W 'has to be loaded, then it is necessary that, before the transfer operation, the boundary wall of the drawer 50 be moved into position 18'. This shift in the dash-dotted line 18 'takes place only after a roll W has already been dispensed into the drawer 50. As a result of the subsequent displacement into the position 18 ', the position of the beginning of the lap in the circumferential direction of the roll W is not changed since, during the displacement of the boundary wall 18, the guide surface 51 also moves in the direction of the winding-forming machine. This results in the displacement of the coil no movement between the peripheral surface of the coil and the boundary wall 18, and the guide surface 51, whereby the winding is protected in the displacement.

This gives a simple and cost-effective design that allows the operation of different recording heights of the transport vehicle 4 with gentle treatment of the winding.

Of course, further embodiments are possible within the scope of the invention.

Claims (6)

1. Device for the transfer of a lap (W), discharged from a lap-forming machine (2), onto a reception trough (28) of a transport vehicle (4) positioned at the transfer point, the device consisting of a receptacle (14) which is mounted pivotably about a fixed horizontal axis (15) via actuating means (Z1) and the pivot axis of which is mounted in the front end region of the receptacle, with respect to the discharge direction (F) of the lap, and at least one means (18) being provided, via which the lap (W) is positioned on the receptacle (14) in a specific position with respect to the pivot axis (15) before and during transfer, characterized in that the means (18, 50) is mounted adjustably in the receptacle (14) and is connected to at least one actuating means (Z1), via which the position of the means with respect to the pivot axis (15) of the receptacle (14) can be set and can be fixed.
2. Apparatus according to Claim 1, characterized in that, as seen in the discharge direction (F) of the lap (W), the means consists of a boundary wall (18) which projects into the path of movement of the discharged lap and which is arranged in the end region of an obliquely descending guide face (16) of the receptacle (14) for the lap (W) discharged from the lap-forming machine (2).
3. Device according to Claim 1, characterized in that, as seen in the discharge direction (F) of the lap (W), the means consists of an obliquely descending guide face (51) for receiving the lap (W) discharged from the lap-fiorming machine (2), and the guide face (51) has at its front end region a boundary wall (18) projecting into the path of movement of the discharged lap.
4. Device according to Claim 3, characterized in that the boundary wall (18) is equipped with lateral guide faces (60, 61) for the lateral guidance of the lap (W).
5. Device according to either one of Claims 3 and 4, characterized in that the guide face (51) is equipped with lateral guide faces (60, 61) for the lateral guidance of the lap (W).
6. Device according to one of Claims 3 to 5, characterized in that the guide face (51), together with the boundary wall (18), is mounted in guides (52) of the receptacle (14) via guide means (54, 55) attached to the guide face (51).

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