DE102017111371B4 - Transport device for a fleece winder - Google Patents

Abstract

Fleece winder (1),
• having
- A holding section (3) designed to receive a winding shaft (7),
- A transport section (100) and
- A guide section (20) which
• has a running surface (21) essentially pointing away from a floor on which the fleece winder (1) is set up, and
• is designed to take the weight of the winding shaft (7),
• wherein the transport section (100) and the guide section (20) are designed to move the winding shaft (7) from the holding section (3) on or near the running surface (21) in the direction of a winding position (4) in which the fleece winder (1 ) is set up to wind the winding shaft (7) with a web located on a contact roller (8) of the web winder (1).

Description

The invention relates to a device for transporting a winding shaft in a fleece winder from a waiting position to a start-up position and from this to a winding position of the fleece winder, as well as a fleece winder equipped therewith.

Fleece winder per se are known. They serve to wind a fleece coming out of a card, for example, onto a winding shaft. For this purpose, empty winding shafts are placed in a magazine of the fleece winder and gradually brought into a waiting position. The waiting position serves, on the one hand, to separate the winding shaft from the other winding shafts and, on the other hand, to set it in rotation before the actual winding process begins. In order to wind a winding shaft, it is provided to convey the winding shaft from the waiting position to a winding position in which the winding shaft to be wound comes into frictional contact with a contact roller on which the fleece runs in the area of the fleece. During this conveyance, the winding shaft is locked on both sides by means of levers and brought into the winding position, as it were, floating. If a malfunction occurs, so that the transport is interrupted, it can happen that the winding shaft gets stuck in the air. This is a very dangerous situation, in particular for an operator, since the winding shaft could loosen and fall off.

the DE 20 2014 005 560 U1 discloses a winder for winding a fibrous web around a winding core in order to form a reel by means of a winding gap between a winding cylinder of the winder and the reel during winding. The winding is done in a primary stage in a primary position and in a secondary stage in a secondary position. The winder has the winding cylinder and primary winding devices for each end of the winding core for winding the pulp web in the primary position and secondary arms for both ends of the winding core for winding the pulp web in the secondary position and for moving the main cylinder along horizontal rails of the winder. The winder also has a winding core store in which the empty winding cores are stored. The winding core bearing is formed from two horizontal guide rails which are arranged on both sides of the winder and upstream of the winding cylinder. The winder's primary winding devices are configured to receive the liner from the liner store, support and load it in the primary position during winding, and lower it to the secondary position.

The object of the invention is therefore to improve the safety of a fleece winder when conveying the winding shaft from the waiting position to the starting position.

This object is achieved by the subject matter of claims 1 and 13. Advantageous further developments are given in the subclaims.

According to the invention, a fleece winder is provided which has a holding section, a transport section and a guide section. The holding section is designed to receive a winding shaft. The guide section has a running surface which essentially points away from a floor on which the fleece winder is set up and is designed to take up the weight of the winding shaft. The transport section and guide section are also designed to move the winding shaft from the holding section on the running surface in the direction of a winding-on position in which the web winder is set up to wind the winding shaft with a web located on a contact roller of the web winder. I. E. the weight of the winding shaft rests on the guide section during the entire process. This has the advantage that the elements gripping the winding shaft have to apply significantly less gripping force. In addition, the winding shaft cannot fall off in the event of a malfunction, which improves safety in particular for an operator.

Alternatively, the winding shaft is guided near the running surface, where near means a range of a few millimeters or even below a millimeter. The transport section has to take up the weight of the winding shaft, but a malfunction does not lead to the winding shaft that may come loose in an uncontrolled manner or cause damage to the fleece winder. On the one hand, the low height of fall means that there is hardly any risk of damage to the running surface. On the other hand, due to its significantly larger diameter, the winding shaft cannot leave the gap between the transport section and the running surface, so that it can continue to be exclusively in the area of the transport section.

Viewed transversely to the direction of movement of the winding shaft, the distance between the running surface and the holding section preferably initially increases in the direction of the winding position and then decreases again. The travel path of the winding shaft, along which the winding shaft can roll away in the event of a malfunction and possible loosening of the gripping device that is intended to grip the winding shaft, is thus quasi halved. This reduces the final speed of the winding shaft and thus also improves operational safety.

The running surface preferably runs continuously. Thus, during the Conveying the winding shaft hardly any vibrations on the web winder.

In this case, the running surface, seen transversely to the direction of movement of the winding shaft, is preferably designed in the manner of a circular arc or elliptical. These are particularly well-suited tread shapes, in particular to keep the acceleration and final speed of a winding shaft loosening within limits.

In each of the aforementioned web winder, the guide section can be part of a frame wall of the web winder. This therefore takes on a double function and, in addition to maintaining the number of parts, enables constant external dimensions of the web winder, at least in terms of width and length.

Additionally or alternatively, the fleece winder can have a sensor system. This is set up to detect when the winding shaft is in the holding section or in the starting position. This enables the web winder to be controlled, for example to initiate the application and / or separation of the web when the winding shaft is in the start-up position.

The sensor system can be of an optical, magnetic and / or mechanical nature. It can therefore be optimized to the respective requirements.

The transport section of each of the aforementioned fleece winders can have a locking section. This is designed to attack the winding shaft from a side facing away from the contact roller. It is also attached to a movement section which is set up to move the locking section in the direction of the contact roller. Accordingly, it can be sufficient to only move the movement section in order to move the winding shaft from the waiting position into the winding-on position. This leads to a very simple and inexpensive structure.

The movement section preferably has a linear guide by means of which the locking section is guided along its movement. The linear guide enables the use of a pneumatic drive.

In the two last-mentioned variants, the movement section preferably comprises a pivotably mounted lever. This is arranged rotatably around an axis of the contact roller. The fleece winder is set up to coordinate the movements of the lever and the locking section in such a way that the winding shaft is safely carried along by the locking section during its movement to the winding position. In particular with an initially rising running surface, this makes it possible not to let the pressure of the winding shaft on the running surface become too great, which is beneficial to operational safety.

Each of the aforementioned locking sections can be designed to grip the winding shaft in such a way that it cannot fall out. This increases the security that the winding shaft cannot easily come loose even in the event of a malfunction. In addition, the weight of the guide section can be at least partially relieved by lifting the winding shaft slightly, for example within a few millimeters while the winding shaft is being conveyed.

In each of the aforementioned fleece winder, the holding section, transport section and guide section can each be provided in duplicate, specifically on opposite sides of the fleece winder. This enables the winding shaft to be conveyed by means of its ends. The area for receiving the fleece is therefore not subject to any mechanical stress from the conveyance and can be optimized for the winding up of the fleece.

A method according to the invention for operating one of the aforementioned fleece winder first has a step of engaging the winding shaft located in the holding section at least from a side facing away from the contact roller of the fleece winder by means of a locking section of the fleece winder. Subsequently, within the scope of the method, the locking section is moved in the direction of the contact roller by means of the moving section of the fleece winder. Furthermore, there is a step of detecting the presence of a state in which the winding shaft has reached the winding-on position. If this state is detected, the movement section is stopped. As a result, the invention offers a very simple method for conveying a winding shaft from the waiting position to the winding-on position.

• 1 einen Vlieswickler gemäß einer Ausführungsform der Erfindung,
• 2 den Vlieswickler von 1 hinsichtlich dessen Verriegelungs- und Bewegungsabschnitts,
• 3 den Vlieswickler von 1 hinsichtlich dessen Verriegelungs- und Bewegungsabschnitts von der in 1 Rückseite her,
• 4 die Darstellung von 2 in größerem Detail und ohne Kontaktwalzen-Antriebsmechanismus,
• 5 zwei vergrößerte Ansichten von 4 und
• 6 eine zu 5 ähnliche Ansicht des Vlieswicklers, wenn sich die Wickelwelle in Anwickelposition befindet.

Further features and advantages of the invention emerge from the following description of preferred embodiments. Show it:

• 1 a fleece winder according to an embodiment of the invention,
• 2 the fleece winder from 1 with regard to its locking and movement section,
• 3 the fleece winder from 1 with regard to its locking and movement section from the in 1 Back,
• 4th the representation of 2 in greater detail and without a contact roller drive mechanism,
• 5 two enlarged views of 4th and
• 6th one to 5 Similar view of the fleece winder when the winding shaft is in the start-up position.

1 shows a fleece winder 1 according to one embodiment of the invention. The constituents that are not essential to the invention are not explained further.

The fleece winder 1 essentially comprises two frame walls 20th , which are combined into a frame via unmarked connectors that contain all other functional elements of the fleece winder 1 picks up or holds.

The frame walls 20th indicate a magazine in a right-hand area 2 in which there are unmarked winding shafts (here: two).

The fleece winder also includes 1 on every frame wall 20th a recess that is a waiting position 3 for a winding shaft 7th Are defined. Because the winding shafts on both sides of a respective frame wall 20th are held, thus becomes a waiting position 3 by means of the two frame walls 20th realized. The frame walls 20th therefore form a holding section for a winding winding shaft by means of the waiting position 7th .

In the waiting position 3 becomes the winding shaft arranged in it 7th by means of a turning section 11 set in rotation. The turning section 11 makes contact with the area of the winding shaft that is used to take up the fleece. I. E. not the entire winding shaft 7th is set in rotation but only its winding section, which is arranged in the center here and which forms the actual winding surface on the circumferential side.

Around a winding shaft from the magazine 2 in the waiting position 3 to be transferred is a first transport section 9 intended.

Furthermore, the fleece winder 1 a winding position 4th on, which is in a kink area, seen along the axis of rotation of the contact roller 8th of the fleece winder 1 , between the frame wall 20th and a contact roller 8th is located. The contact roller 8th leads the incoming fleece to the winding shaft to be wound in a known manner.

A separating section is used to automatically change the fleece from one winding shaft to the next 12th provided, which comprises a cutting section not further designated here.

Furthermore, the fleece winder 1 a wrapping position 5 on, by means of a section arranged here on the left between the frame wall 20th and contact roller 8th is realized. In this position 5 the corresponding winding shaft, which is already fleece in the winding position 4th has taken up, finally wound up.

For transporting the winding shaft here 7th from the waiting position 3 about the winding position 4th to the wrapping position 5 becomes a locking and moving section 100 used, which thus forms a second transport section.

After the respective winding shaft has been wound, the fleece is separated by means of the separating section 12th separated, and the wound winding shaft is by means of a winding and ejecting section 10 into an extension position 6th of the fleece winder 1 emotional.

Every rack wall 20th has an upwardly facing running or guide surface 21 on, which is mainly from the waiting position 3 to the winding position 4th extends.

2 shows the fleece winder 1 with regard to its locking and moving section 100 .

The locking and moving section 100 preferably comprises on both outer sides of the frame walls 20th Elements that move the winding shaft here 7th from the cranking position 3 in the winding position 4th to serve.

These elements each include a strap 113 around an associated pair of pulleys 116 , 119 is looped. By rotating the respective belt pulley, which is not visible here 116 becomes an associated swivel part 120 rotates with it. A connecting shaft 114 is provided both pulleys 119 , of which only the front one is visible.

The connecting shaft 114 is through both frame walls 20th throughout by means of pivot bearings 22nd in the frame walls 20th added freely rotatable.

A drive section 30th is provided by means of a motor 31 and here a gearbox 32 over a strap 33 one preferably coaxial with the respective pulley 116 arranged pulley 34 to drive the non-rotatable to the contact roller 8th but freely rotatable in relation to the pulley 116 , is arranged.

3 shows the fleece winder 1 with regard to its locking and moving section 100 from the in 1 Back and without drive section 30th . This turns the in the direction of the contact roller 8th behind, adjacent arranged pulley 116 visible. As can be seen, the arrangement is essentially the same as on the front of the fleece winder 1 in 2 .

Apart from that, there is a drive section 110 provided, in the example shown, a motor 111 with a gear 112 having. About the transmission 112 is the engine 111 able to use the associated lower pulley 119 set in rotation around that of the belt 113 is looped. Via the connection to the connecting shaft 114 is the engine 111 thus being able to use the in 2 illustrated locking and movement section 100 also set in motion.

The drive section 110 is preferably by means of a fastening element 101 on the frame wall shown here 20th attached.

The locking and moving section 100 includes two swivel parts as an example 120 , which rotatably to a respective pulley 116 are arranged. Pulley 116 and swivel part 120 can just as well be formed in one piece with one another.

4th is again a representation of 2 in greater detail and without the contact roller drive section 30th . It can be seen here that a tension pulley is preferred 117 is provided to the strap 113 to put under the necessary bias.

5 includes two enlarged views of 4th .

In the example shown are the pulley 116 and the swivel part 120 by means of fasteners 118 fastened together like screws. On the swivel part 120 is a pneumatic cylinder 121 together with a linear guide 123 attached. The linear guide 123 leads a sledge 122 translationally from right to left and back. On the sledge 122 again is a locking section 130 attached.

The locking section 130 includes a pneumatic cylinder 131 that with one end of his piston 132 remote end on the carriage 122 is pivotally attached. The free end of the piston 132 of the pneumatic cylinder 131 in turn is pivoted on a locking lever 133 attached, which in turn is also swivel-mounted on the slide 122 is attached.

By extending the piston 132 is the pneumatic cylinder 131 able to swing the lever 133 towards the winding shaft 7th to move so that by means of the locking portion 130 is being held.

The pneumatic cylinder 121 is able to move the slide via its piston, not shown here 122 along the linear guide 123 to move.

Should the winding shaft 7th from the waiting position 3 in the winding position 4th are moved is by means of the drive section, which is not visible here 110 the strap 113 so that the pulley moves 116 is rotated counterclockwise here. The arrangement is now swiveling 120 , Pneumatic cylinder 121 , Linear guide 123 and locking section 130 rotates with it. The locking section rotates 130 first around the axis of rotation of the contact roller 8th .

Around the winding shaft 7th in contact with or very close to the tread 21 the rack wall 20th to hold or to lead, is when pivoting by means of the pneumatic cylinder 121 or by retracting the piston of the slide 122 gradually in the direction of the axis of rotation of the pivoting part 120 along the guide 123 emotional. Near means preferably in the millimeter range or below.

6th shows one to 5 similar view of the fleece winder 1 when the winding shaft 7th in winding position 4th is located.

In the winding position 4th is established by means of a known frictional connection between the winding shaft 7th and contact roller 8th the fleece from the contact roller 8th on the winding shaft 7th transferred and with it the winding shaft 7th wrapped.

Is the winding shaft 7th wrapped, the swivel part is 120 according to 6th further counter-clockwise towards the winding position 5 turned. This is within the framework of the linear guide 123 now made sure that the winding shaft 7th constantly in contact with the contact roller 8th stands.

Is the winding shaft 7th in the wrapping position 5 , lets the locking section 130 the winding shaft 7th go again, and the swivel part 120 is in the opposite direction, i.e. clockwise according to 6th , turned back to the next, stand on hold 3 to be able to take over the winding shaft located when it is now in the winding position 5 located winding shaft 7th is almost fully wound and the fleece on a new winding shaft 7th is to be transferred.

The invention is not restricted to the embodiment described.

The running or guiding surface 21 advantageously runs continuously and is preferably formed in the shape of a circumferential line of a circle or an ellipse. In any case, it reduces its distance from the floor on which the fleece winder is set up, at least in the direction of the waiting position 3 or winding position 4th .

The drive section 30th can also have an electric motor as the drive means.

The same applies to the pneumatic cylinder 121 . A worm gear that is preferably self-locking in the direction of the floor is possible as the linear guide.

In addition, a sensor system can be provided in order to detect when the winding shaft is moving 7th in waiting position 3 , in winding position 4th and / or in the winding position 5 is located. The sensor system can include optical sensors. Alternatively, touch-sensitive sensors such as switches are also conceivable, which are advantageously actuated by the respective winding shaft when they reach the respective position 3 - 5 reach.

As a locking section 130 any type of transport device that is able to lift a winding shaft is possible. It can be designed electromagnetically, for example.

The sled 122 is on the linear guide 123 preferably taken out by means of a dovetail guide.

The pulleys 34 , 116 do not have to be arranged coaxially to one another.

The belt drives can be replaced individually or as a whole by any other gear mechanism.

As a result, the invention creates a simple and inexpensive to implement possibility to safely move a winding shaft at least from the waiting position 3 in the winding position 4th to move.

List of reference symbols

1

Fleece winder

2

magazine

3

Waiting position

4th

Winding position

5

Wrapping position

6th

Extension position

7th

Winding shaft

8th

Contact roller

9

Transport section

10

Winding and pushing out section

11

Turning section

12th

Separation section

20th

Rack wall

21

Tread

22nd

Pivot bearing

30th

Locking section

31

engine

32

transmission

33

belt

34

Pulley

100

Locking and moving section

101

Fastener

110

Movement segment

111

engine

112

transmission

113

belt

114

Connecting shaft

116

Pulley

117

Tension pulley

118

Fastener

119

Pulley

120

Fastening part

121

Pneumatic cylinder

122

sleds

123

Linear guide

130

Locking section

131

Pneumatic cylinder

132

Pistons

133

Locking lever

Claims (13)

Fleece winder (1), • having - a holding section (3), designed to receive a winding shaft (7), - a transport section (100) and - a guide section (20), the • one essentially from a base on which the fleece winder (1) is set up, has running surface (21) pointing away and • is designed to absorb the weight of the winding shaft (7), • the transport section (100) and the guide section (20) are designed, the winding shaft (7) from the holding section (3) on or near the tread (21) in the direction of a winding position (4) in which the web winder (1) is set up to wind the winding shaft (7) with a web located on a contact roller (8) of the web winder (1). Fleece winder (1) according to Claim 1 , wherein, seen transversely to the direction of movement of the winding shaft (7), the distance between the running surface (21) and the holding section (3) increases and decreases again in the direction of the winding position (4). Fleece winder (1) according to Claim 2 , wherein the tread (21) runs continuously. Fleece winder (1) according to Claim 3 , wherein the running surface (21), seen transversely to the direction of movement of the winding shaft (7), is formed like an arc of a circle or elliptical. Fleece winder (1) according to one of the preceding claims, wherein the guide section (20) is part of a frame wall (20) of the fleece winder (1). Fleece winder (1) according to one of the preceding claims, further comprising a sensor system, set up to detect when the winding shaft (7) is in the holding section (3) or in the starting position (4). Fleece winder (1) according to Claim 6 , whereby the sensor system is optical, magnetic and / or mechanical in nature. Fleece winder (1) according to one of the preceding claims, wherein the holding section (3), the transport section (100) and the guide section (20) are each provided twice, namely on opposite sides of the fleece winder (1). Fleece winder (1) according to one of the preceding claims, wherein the transport section (100) has a locking section (130) which • is designed to attack the winding shaft (7) from a side facing away from the contact roller (8) and • is attached to a movement section (120-123) which is set up to move the locking section (130) in the direction of the contact roller (8). Fleece winder (1) according to Claim 9 wherein the movement section (120-123) has a linear guide (123) by means of which the locking section (130) is guided along its movement. Fleece winder (1) according to Claim 9 or 10 wherein • the movement section (120-123) comprises a pivotably mounted lever (120) which is arranged rotatably about an axis of the contact roller (8), and • the fleece winder (1) is set up to control the movements of the lever (120) and to coordinate the movement section (120-123) in such a way that the winding shaft (7) is securely entrained by the locking section (130) during its movement to the winding-on position (4). Fleece winder (1) according to one of the Claims 9 until 11 , wherein the locking section (130) is designed to grip the winding shaft (7) in a fail-safe manner. Method for operating a fleece winder (1) according to one of the Claims 9 until 12th , having the following steps • engaging a winding shaft (7) located in the holding section (3) at least from a side facing away from the contact roller (8) of the fleece winder (1) by means of the locking section (130) of the fleece winder (1), • moving the movement section (120-123) in the direction of the contact roller (8), • detecting the presence of a state in which the winding shaft (7) has reached the winding position (4), and • when the presence of one state is detected, stopping the movement section (120-123 ).

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