JPS60259433A - Device for manufacturing side-surface opening v-belt from previously vulcanized sleeve-shaped wound body - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The invention relates to a device according to the preamble of claim 1.

DE 31 28 111 A1 in the name of the applicant describes a device for scraping already vulcanized sleeve-shaped rolls. In this case, the winding is wound around two parallel rolls, one roll is then separated from the other to tension the winding, and in this tension the winding is separated into individual V-bells (K-cuts). be done. The V-belt with does not require any further processing after cutting.

Vulcanized V-belts in the form of sleeve-like rolls) When cutting materials, high demands are made regarding the accuracy of the cutting process. The cutting process must be performed with an error of 1/10 ml. This is because otherwise V-belts would generate a lot of driving noise, for example when used in automobiles.

Furthermore, it is very difficult to cut V-belt material that has already been vulcanized, ie has a high resistance. This is because the material is made of a rubber layer that is extremely hard and has little wear. Conventional V-belts are covered with an unvulcanized, highly abrasive skin made of rubberized fabric. Such manufacturing methods are very costly. This is because each V-belt must be skinned in order to be fed into the mold during the subsequent vulcanization process. Since dimensional errors during cutting are removed during the vulcanization process in the mold, there is no need to compromise on accuracy during the cutting process of the V-belt that has not yet been vulcanized.

Because of this disadvantageous method, there has been an increasing shift towards the production of open-sided V-belts by cutting vulcanized rolls.

However, it is very difficult to guide the vulcanized rotating body in which individual V-belts are to be cut and formed in an extremely stable and quiet state during rotation in order to be able to perform accurate cutting. It is.

The object of the invention is to be able to guide a sleeve-shaped material to be cut rotating at high speed in a very stable and quiet manner, so that the material can be accurately guided, tensioned and cut up to the last belt. It is important to have a device that can do this.

This object is solved by the features specified in the claims.

By being able to use tension rolls, the roll is stretched on the end side that is swung outwards, and due to the direction of rotation around the roll (the roll rotates at a speed of less than 1000 revolutions/rev), the roll is brought into contact. A component of motion in the direction of the member acts on the winding. This is because the roll is entrained by the roll outer wall as it rotates around a roll that is swung laterally out of the vertical plane (for example, a roll that is swung to the right).

When the winding leaves the roll outer wall on the opposite side after wrapping 180 degrees around the roll (when the winding is guided upwards again),
The winding is carried a little towards the abutment at the end of the roll (due to the winding being inclined).

Due to this entrainment, the rotating roll moves on the roll in the axial direction of the swinging roll toward the abutting member, regardless of the direction of rotation. Therefore, the rotation of the roll is extremely smooth. One of the rolls can be swung at various angles around the rotation point on the non-swiveling end surface of the tension roll in a plane parallel to the stationary rolls. By moving the winding, the frictional resistance of the winding can be changed and increased on one side, thereby controlling, for example, the wall thickness, the reinforcement, the length, the different layered structure of the winding, the respective elasticity of the winding, etc. Frictional resistance can be tailored to various winding characteristics.

Therefore, it is very preferable to form the abutting member together with the winding body feeding device as described in claim 2. This is because the abutment elements can be used at the same time for feeding the rotating roll towards the cutting device.

When the mabelt is cut off from the roll and removed by gravity, the feed device formed as an abutment member is used to convey the opposite edge of the rotating roll again to the new cutting position. be done.

After this process, the roll rotates very smoothly.

This is because, in each working phase, the winding starts against the feed device, which is designed as a stop, due to the one-sided extension and the direction of rotation, so that it is guided precisely and precisely.

As described in claims 2 and 3, the feeding device can be formed, for example, as a linear slider. This linear slide is designed to be movable by a spindle device and is equipped with a pressure measuring device.

Furthermore, the feeding device 7' according to claim 4 includes:
It is formed by a linear slider with a roller placed in front. This roller is mounted in such a way that it can be moved against the winding, and is connected to a pressure measuring device via a measuring value intensifier to a linear slide designed as a zero-voltage device, so that the tension can be increased. Other values for the extent of the winding and thus for the extension of the winding to one side can be determined. This value is supplied to a computer, for example, in order to be able to reproduce the value.Furthermore, based on this value, the computer detects the respective oscillation angle and adjusts the oscillation angle via a suitable device. The device according to the invention can be operated automatically if the computer controls the stepwise feeding of the roll by the width of the mabelt during one further revolution.

An embodiment of the device is shown in the drawing.

The roll 3 is wound around the rolls 1 and 2, tensioned by the roll 2, and rotated.

The roll 2 is then swung around the rotation point 4. As a result, the winding body 3 is subjected to strong frictional resistance on one side.

At the same time, by driving the roll 2, the roll 3 moves along the outer surface 2a of the roll 2, which has swung outward.

The roll 2 is supported by two bearings 6, and the opposite side has no bearings and is floating.

The bearing 6 is provided on a table-like base 7. This platform can be swung by two wheels 8, 9 along a sunken rail. The roll 1 is bearing on one side and cannot be swung or adjusted in height.

The abutment element 5 is preferably designed as a feeding device for the rotating roll 3. This feeding device feeds the roll 3 towards the double-sided blade 10 which rotates at high speed. The feeding process is carried out each time after the belt is separated from the rotating body 3. As a result, the roll is carried towards the cutting blade 10 by the width of the three-piece belt.

In order to bring it into contact with the rotating roll with the desired friction,
The abutment head is formed by a bearing roller 5a.

A measuring device 11 is connected to the abutment member 5 via a measured value amplification device 12 . Thereby, a reproducible pressure value of the contact member 5 against the green 3aK of the winding body 3 can be determined.

The abutment member 5 or the feed device 5 is moved in the direction of the double arrow 14, for example, by means of a linear slide 13 which can be moved by a spindle device.

By suitably adjusting the platform 7 by an angle determined empirically, the roll 3 is elongated on one side, depending on the thickness and the reinforcement, for example, and is moved in a predetermined direction of rotation and the roller 5aK of the abutment member 5 Rotate against it. After the winding body 3 has rotated in a stable and quiet state, each Vbe/l/) has a round blade 101.
It is cut and formed by C. After each cut has been made, a one-step feed is initiated by the feed device or abutment element 5.

The roll 3 rotates along the outer surface 2a of the roll 2 which has swung outward. The roll 2 swings in parallel planes about a point of rotation 4 towards the stationary roll.

This rotation point is provided on the opposite end face of the roll 20.

Due to the aforementioned direction of rotation of the winding 3, this winding rests against the outer surface 2a of the roll 2 and is entrained by the roll while wrapping around this roll, thus moving towards the abutment member 5 during a winding of approximately 180 degrees. This state is the dashed line 1 on roll 2.
6. When the roll 2 is swung as shown, the roll moves by X toward the abutting member 5. This condition is exaggerated for clarity.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view of the device showing only functionally important parts, and FIG. 2 is a plan view of the device shown in FIG. 1-111 roll 2-111 tension roll 2a-m-outer surface of roll swung outward 3---o-roll 3a-11 roll deviation, 4-111 rotation point 5-1 11 Contact member or feeding device 5a---Roller 6---111 Bearing 7---One unit a, 9---One wheel IQ---All blades 11---One measuring device 12--- 1. Measurement value amplification device 13 ---- Swivel device 14 - L - Bidirectional arrow j 5 - - Vertical roll surface i 6 ---- 180 degree winding of two rolls ray
Inventor Wilhelm Brantdon (DE) [Ltd.] P3443685.5 Rotbraken, Hannover 91, Federal Republic of Italy
Numer, 51

Claims (1)

[Claims] 1. The roll is wound around a stationary roll and a movable second tension roll, tension is applied by moving the tension roll, and the roll is individually cut by a cutter. V-belts) K-cut to cut a vulcanized sleeve-like roll and thus in an apparatus for producing V-belts with open sides, one of the rolls (1, 2) is placed Other roles (1)
A roll (2) is formed to be able to swing around a rotation point (4) in a plane parallel to K, and this rotation point does not swing outward.
) is provided near the end of the roll (1, 2) on the side opposite to the rotation point (4), and a contact member (5) for supporting the rotating roll is provided at the end of the roll (1, 2) on the opposite side from the rotation point (4). The device 0 2 is characterized in that the abutment member (5) is designed as a feed device movable by a spindle device (13) for feeding the roll towards the cutting device (10). An apparatus according to claim 1, characterized in: 5. Device according to claim 2, characterized in that the abutment member (5) is designed as a linear slide and is provided with a pressure measuring device (11). 4. A feeding device that acts from the side of the rotating winding body @ (3a) ic is provided in front of the linear slider and the winding body (
3) is formed by a bearing roller (5a)K which can come into contact with the roller (5a)K.
The device according to paragraph 3 or paragraph 3. 5. Device according to one of claims 2 to 4, characterized in that the linear slide is connected to the pressure measuring device (11) via a measured value intensifier (12). . & Feed cylinder two formed by linear slider (5
) cuts the rotating roll (3) with a cutter (
10) The device 0 according to any one of claims 2 to 5, characterized in that the device 0