SU1726344A2 - Device for winding tape on bobbing - Google Patents

Abstract

The invention can be used in various industries of the national economy, for example, in the tire industry, and it allows to increase the reliability of operation. The device comprises vertical rollers on the winding mechanism for fixing the reel in the axial direction and a spring-loaded lever system for centering the reel on the locking mechanism of the transporting device using levers whose working parts move in opposite directions. 1.W.N. f-ly, 5 ill.

Description

The invention relates to equipment for assembling tires for pneumatic tires and can be used in the tire industry, in particular when centering and winding tape material on a reel.

A device is known that contains the unrolling and winding mechanisms installed on the frame and the means for centering the material, having a sensor for positioning its edge.

The disadvantages of this device are the inaccuracy of the centering of the reel on the unrolling mechanism by the conical flanges of the drums, since the distance between them is equal to the maximum length of the reel and with a smaller length it can be formed along the axis. When feeding the reel after rolling from the drums of the unrolling mechanism by means of a radially movable rubberized roller to the transporting device and rolling along its inclined direction. This also leads to the inevitable displacement of the reel along the axis due to the possible taper of the reel and other deviations. When the material is wound on a reel, fed from a retainer to a winding drum, an inevitable displacement of the reel along the axis during the winding process leads to a spiral arrangement of the material layers and the edges of the reel in the roll, which deprives the centering of the material when feeding it to the winding device . The absence of a locking device for the reel on the winding mechanism causes the reel to move along the axis until it touches the end of the device frame with the attendant wear and noise level, while the other end is inside the material roll, which makes it difficult to fix during subsequent rolling.

The aim of the invention is to improve the reliability of the device due to improved C

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nor centering when winding tape material.

The goal is achieved by the fact that in the device for winding tape material on a reel the winding mechanism additionally contains vertical rollers mounted on the frame at the ends of the drive drums symmetrically relative to their axes and a spring-loaded arm hinged on the frame, interconnected with a horizontal pull fitted with locks hinged on the frame of the device, while one of the clamps is hingedly interconnected with the bar movably mounted on the plate, rigid mounted on its middle part, and the other is hinged at its end,

The proposed device differs from the prototype device in that it contains vertical rollers limiting the displacement on the winding mechanism of the reel, and a spring-loaded lever mechanism using levers of the first and second kind as clamps, due to which their upper ends move our speech to each other and ensure the supply of the reel position relative to the vertical rollers of the winding mechanism, regardless of the direction and magnitude of the displacement, as well as the length of the reel, which is fixed torus., Chew greatly simplifies the operation of centering of the bobbin and provides the minimum edge shift of the material relative to the end face of the bobbin during winding.

Fig, 1 shows the proposed device, side view; in fig. 2 - the same, top view; in fig. 3 is a view of L in FIG. one; in fig. 4 is a view B in FIG. 3; in fig. 5 - transporting device.

The device contains a frame 1, in the left part of which (Fig. 1) there is mounted a yoke mechanism made in the form of two cylindrical rollers 2 and two rollers with conical flanges 3. All rollers rotate freely. Rubberized 4 are mounted on the swivel 4 arms from the pneumatic actuator. roller 5, which is driven in rotation by a chain drive 6 from the drive shaft 7, and shaft 7 is driven by a drive (not shown).

On frame 1 there is mounted a material supply means, which consists of sprockets 8–15, chains 1 b mounted on them and fixed to chains with their ends by a horizontal frame 17 with a slit. The chains 16 are driven by a chain transmission 18 and a gear transmission 19 from shaft 7 to shaft 20 on which the sprockets 8 are fixed,

On the frame 1 in the middle part there is mounted a transport device made in the form of an inclined guide 21 and a pneumatic actuator 22 (not shown). In the area of the retainer 22 to the frame 1 is pivotally attached (Fig. 5) with the lower end of the lever 53, its middle part is pivotally connected

with the end of the horizontal gig 54. The other end of the gig 54 is pivotally connected to the middle part of the retainer 55, the lower end of which is pivotally mounted on the frame 1. A plate 56 is fixedly attached to the middle part of the grip 54, the lower end of which is pivotally connected to the end of the plank 57. The other end of the plate 56 is pivotally connected to the lower end of the retainer 58, the middle part of which is pivotally mounted

on the frame 1. The lever 53 with its middle part is attached to the frame 1 by a spring 59,

Above the transporting device in the middle part of the frame 1 there are mounted a means for centering consisting of an arcuate roller 23 fixed on a frame 25 rotatable from the pneumatic actuator 24, and a material edge position sensor 26, a stitching roller 27 and an ejector in

a roller 28 mounted on a double-arm lever 29, which is rotated by a pneumatic actuator 30.

In the right part of the frame 1 is mounted a winding mechanism consisting of two

Drives in one direction reels 31 and 32 (drive not shown). Near the ends of the drums 31 and 32, two vertically arranged freely rotating rollers 52 are mounted symmetrically with respect to their axes, the clear light distance between which is equal to the maximum length of the reel 51 and which fix it from axial movement.

Above the winding mechanism is mounted a means of fastening the ends of pieces of material consisting of two lower 33 and 34 and two upper 35 and 36 plates, provided with heating elements. Plate 33 is fixed, and the plate

34, 35 and 36 - noBopotHbie in the horizontal plane. The working surfaces of the plates facing each other are inclined to the plane of their rotation, In the gap between the non-working parts of the plates 33 and

35, a rotating sleeve, for example a ball bearing 37, is attached to the plate 33. In the gap between the non-working parts of the plates 34 and 36, a corner 38 is attached to the plate 34. Vertical axis 39 for the coil 40C is attached to the hinge of the plate 34.

with a strip of thermoplastic material, such as polyethylene. Adjacent to the bracket 41, securing the plate 33 to the rack 42, a sleeve 43 is mounted in the opening of this rack, in which shaft 44 rotates, the handle 45 is attached to the shaft 44, and the frame 46 is rotatably mounted inside the shaft 44 47

In the upper part of the frame 1 mounted rollers 48 and 49.

A roll of material 50 to be rewound centered is mounted on rollers 2 and 3 of the unrolling mechanism. On the inclined guide 21 of the conveying device, there is a back-up reel 51 kept from prematurely rolling onto the drums 31 and 32 by the latch 22.

The device for winding tape material on the reel works in the following sequence.

The reel 51 left on the rollers 2 and 3 of the unrolling mechanism after rewinding a roll of material from it, rises from them and is fed to the conveyor 21 of the transporting device under the influence of roller 5 lifted by the pneumatic actuator 4 and rolls down to the retainer 22. Due to deviations in the reel sizes its length and diameter may be skewed and, as a result, located in the area of the retainer 22 with an offset in the axial direction. On the sides of the reel, from its ends, the upper ends of the latches 55 and 58 are in the initial position (Fig. 5). The impact on the upper end of the lever 53 is set in motion by a ha 54 with a plate 56, which rotates the clamps 55 and 58 (the latter through the bar 57) so that their upper ends move towards each other and ensure the reel is in a position symmetrical with respect to the axis of the device regardless of the direction of movement and the length of the reel, When you release the lever 53 springs 59. returns it and all the above parts to its original position.

The roll to be rewound is mounted on rollers 2 and 3 and the end of the material is manually loaded into the slot of frame 17. Roller 5 is brought to the bottom of the roll by pneumatic actuator 4, the drive shaft 7 is driven, roll is rotated through roller 5, the sprockets 8 are driven into motion by the chain 16 with the frame 17. After the passage of the frame 17 around the sprockets 10 it rotates 180 ° and the end of the material is securely fixed in its slit due to the formation of a double loop (see pos. 60 in Fig. 1). In the same form, the loop on the frame moves to the sprockets 14, after which (see pos. 61) the frame rotates in the opposite direction, and the end can be easily released from it. The material is rolled out of a roll, held on top of roller 48, arc-shaped roller 23, into the slit of sensor 26, on top of roller 49, under roller 27, which

0 at this time is in the initial position (see pos. 62), above the drums 32 and 31 of the winding mechanism, under the latch 22. Then the latch 22 lowers and the backup reel 51, which he held on

5 of the guide 21, rolls onto the drums 31 and 32 between the rollers 52, with its pull weight, the end of the material from the frame and 17 (pos. 61). The locking mechanism rises to its original position. The end of the material is fed

0 on top of the reel, forming a loop on it (on

FIG. 1 - clockwise). Device

feed end not shown. Roller is retracted

5 raskatochnogo mechanism.

30 the roller 27 is fed to the drum 32, and the material 50 is pressed and pressed to it.

The drive of the winding mechanism is turned on, the reel is driven in rotation by the drums 31 and 32, the material is wound on it, the roll on the rollers 2 and 3 of the unrolling

The mechanism 0 rotates under the tension of the material.

The reel is secured against axial movement by the rollers 52, which are high enough to contact one of the ends.

5 reels when it is raised by increasing the diameter of the roll.

The arcuate roller 23, rotated by the signals from the sensor 26, centers and simultaneously straightens the material.

0 At the end of the rewinding, the drive of the winding mechanism stops, the pneumatic actuator 30 rotates the lever 29, the roller 28 pushes the roll off the drums 31 and 32 (while the stitching roller 27 rises, releasing the roll path). The drive of the unrolling mechanism is turned on in the opposite direction, the chains 16 transfer frame 17 to the initial position. The cycle is complete.

0In case the roll to be rolled

consists of several pieces of material and they need to be stapled to each other, the drive of the winding mechanism stops when a break is detected. the end

5, the material remaining in the roll on the variable mechanism is fed to the winding mechanism. The upper plates 35 and 36 of the material holding means are retracted to the position shown in FIG. 2 dashed lines. On the bottom plates 33 and 34, the end of the material laid out from the unrolling mechanism is laid out. The end of the strip of thermoplastic tape, for example polyethylene, from the coil 40 is held over the bottom plates 33 and 34 near the corner 38, through the opening in the sleeve 37 and tucked into the frame 47. The frame rotates at least 180 °, thereby fixing end of thermoplastic tape. The shaft 44 with the clip 46 and the frame 47 is rotated in the sleeve 43 by the handle 45, the tape is twisted into a tow located along the axis of the lower plates. A bottom end of the material is rolled onto it, rolled into a roll on the winding mechanism (if necessary, the reverse rotation is applied to its drive) and forms an overlap with the end under the tow. The heating of all four plates is turned on, the top plates are brought to the bottom ones, at the end of the turn between the working surfaces of the plates a gap is formed, somewhat larger than twice the thickness of the material, the tape harness between the ends of the material melts and joins them together. The heat is turned off, the top plates are retracted. The ends of the harness along the edges of the material are cut off and removed. The material connected in one piece is displaced towards the fixed plate 33, the movable bottom plate 34 is retracted, the material is brought into the gap between them and straightened behind the plates, freed from contact with them. All plates are reset. The drive of the winding mechanism is turned on, and material rolling continues.

The presence of conical flanges at the ends of the rollers 3 prevents the material roll from shifting along the axis on the rolling mechanism, i.e. center roll.

The advantage of the proposed device is reliable centering of the reel on the retainer. Regardless of its length and displacement in the axial direction, as well as its centering on the winding mechanism with minimal wear of the rollers due to the fact that the entire surface of one of the rollers consistently interacts with the end of the reel rotating and lifting the reel with increasing roll diameter.

Claims (2)

1. A device for winding tape material on a reel on aut. St. No. 1645230, characterized in that, in order to increase reliability in operation, the winding mechanism comprises vertical rollers mounted on the frame at the ends of the driving drums symmetrically with respect to their axes for locking the reel from its axial movement, horizontally along the drums connected with pivotally mounted latches on the frame for centering the reel and a spring-loaded lever mounted on the frame connected to the rod for its axial movement. 2. The device according to claim 1, of which is that the winding mechanism has a plate fixed to the plate in the middle part of the plate that carries the bar on the cantilever end, while one of the clamps is hinged zan with a strap, and the other is hinged at the end of the rod SfJO M 1i 25 23 26 9 I JJ