JPH05201617A - Winding drop device of work in string shape - Google Patents

Abstract

PURPOSE:To provide the winding drop device of a weather-strip of a small installation space at a low cost. CONSTITUTION:A motor 43, a pulley 44 and a drive shaft 40 being rotated by a belt 45 are supported on a frame 22. A fixed pulley 51 is installed on the frame 22 coaxially with the drive shaft 40. This fixed pulley 51 is jointed to a satellite pulley 52 on a stay 46 installed on the lower end of the driving shaft 40 by a belt 53. An arm 47 extending diagonally downward is fixed on the stay 46 and a roller 48 for sending out a weather-strip 25 to the lower end of the arm 47 is supported rotatably. A flexible shaft 57 is connected to the shaft 54 of the satellite pulley 52 and the shaft 48A of the roller 48.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for unwinding a string-like work such as a weather strip.

[0002]

2. Description of the Related Art For example, a weather strip used as a sealing material for automobiles is formed into a string shape by extrusion molding, and a wind-down device is used for rolling the weather strip after manufacturing and stocking it. There is. An example of this will be described with reference to FIG. 5. As shown in a plan view in FIG. 5, the unwinding device 1 is provided on the frame 3 together with the take-up device 2, and below the unwinding device 1, the weather strip is unwound. A box pallet 5 for arranging the workpieces 4 in a claw shape is arranged.
In addition, 6 shows a staircase.

The unwinding device 1 has a structure utilizing a parallel link mechanism, and two pairs of parallel long links 7, 8, 9, 10 are provided on the frame 3 in a bent manner. Short link 1 that supports long links 9 and 10 at the tip of 8
1 has a work holding device 12 at the ends of the long links 9 and 10.
Is pivoted.

Drive links 13 and 14 are pivotally supported in parallel with the long links 7 and 9, respectively.
A drive arm 16 whose base end is rotated by a motor 15
Is pivotally supported at the turning end of.

Further, the work holding device 12 includes a motor 1
7, a roller 18, which is associated with the motor 17,
The work 4 is fed downward by the numeral 19. Accordingly, when the drive arm 16 is rotated by the motor 15, the work holding device 12 circularly moves by the long links 7, 8, 9, 10 and the short link 11 via the drive links 13, 14, and the roller 18 of the work holding device 12 is rotated. ，
The work 4 sent by 19 is the box pallet 5
It is piled up inside.

[0006]

However, since the conventional unwinding device 1 adopts the link type and has the structure in which the box pallet 5 is placed at a position apart from the frame 3. However, there is a problem that the whole becomes large and requires a large installation space.

Since the work holding device 12 is provided with the motor 17, the weight of the work holding device 12 is increased, and as a result, the output of the motor 15 for driving the long links 7, 8, 9, 10 and the like is increased. There is a problem that the cost must be increased because it needs to be increased.

Therefore, the present invention provides a string-shaped work unwinding device which requires less installation space and can reduce the cost.

[0009]

A frame-shaped drive shaft into which a string-shaped work is inserted is provided in the frame, and a stay extending outward is fixed to the lower end of the drive shaft. An arm extending downward is fixed, a roller is provided at the tip of the arm to guide the string-shaped work inserted in the drive shaft downward, and a fixed pulley is provided around the drive shaft at the same position as the drive shaft around the drive shaft. The stay is provided with a satellite pulley linked to a fixed pulley, one end of the flexible shaft is attached to the shaft of the satellite pulley, and the other end of the flexible shaft is fixed to the shaft of the roller.

[0010]

When the drive shaft rotates, the stay and the arm fixed to the stay rotate. The rotation of the stay rotates the satellite pulley linked to the fixed pulley, which causes the flexible shaft to rotate, thereby rotating the roller provided at the tip of the arm. The string-shaped works inserted in the drive shaft are sent out downward by the rotating rollers, and are stacked in a claw shape by the rotation of the arm.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

A take-up device 21 is connected to the unwinding device 20 shown in FIGS.

A subframe 23 having a staircase 23A for maintenance work is provided on the carry-in side of the frame 22, and a post 24 of the subframe 23 has a height of a weatherstrip 25 as a string-shaped work extruded. Three sensors 26, 27, 28 for detecting the height and adjusting the take-up speed of the take-up device 21 which will be described later are attached in order from the bottom. Here, the sensor 26 at the bottom is the sub-frame 23 when the extrusion speed is high.
When the weather strip 25 bent at the position of is detected, the speed of the take-up device 21 is increased and the sensor 27 above it is detected.
Is for lowering the take-up speed of the take-up device 21 when the push-out speed is low, and the sensor 28 on the top is the take-up device when the take-up speed is too high relative to the push-out speed. It is for stopping 21.

On top of the frame 22, the sub-frame 2
The take-up device 21 is disposed obliquely upward from the 3 side.

The take-up device 21 is provided with a vertical roller 30 and a horizontal roller 31 on the carrying-in side of the device frame 29, and flat belt pulleys 32, 33 are provided above and below the carrying-in end (lower end side), respectively.
Two flat belt pulleys 34, 35 are provided at the lower part of the carry-out end (upper end side), and a flat belt pulley 36 is provided at the upper part.

The flat belt pulley 3 at the upper end of the carry-in end
The belt 37 is wound around the upper flat belt pulley 36 at the unloading end and the lower flat belt pulleys 34 and 35 from 2, and
A belt 38 is wound around the flat belt pulley 33 below the carry-in end and the flat belt pulley 35 below the carry-out end.
The upper flat belt pulley 32 at the carry-in end can be moved toward and away from the lower flat belt pulley 33 by an adjusting dial 39.

Therefore, the weather strip 25 guided by the vertical roller 30 and the horizontal roller 31 on the carry-in side of the apparatus frame 29 is guided between the flat belt pulleys 32 and 33 at the carry-in end and held between the belts 37 and 38. An unwinding device 2 to be described later from between the flat belt pulleys 34 and 35 at the carry-out end.
0 is driven into the drive shaft 40.

As shown in detail in FIGS. 1 and 2, the unwinding device 20 is a bearing case 41 above the frame 22 and below the flat belt pulley 34 and the flat belt pulley 35 of the take-up device 21. Is fixed to the frame 22. The bearing 4 is installed inside the bearing case 41.
A cylindrical drive shaft 40 is rotatably supported via the shaft 2 in the vertical direction, and the upper portion of the drive shaft 40 is provided with a pulley 40A.
The belt 45 is wound around the pulley 44 of the motor 43.

A stay 46 extending outward is fixed to the lower end of the drive shaft 40 by a bolt 46A.
An arm 47 is fixed to and diagonally downward.
The weather strip 2 is attached to the tip of the arm 47.
A roller 48 that guides 5 downward is provided.

Here, as shown in FIG. 3, an auxiliary roller 49 for receiving the weather strip 25 is provided between the roller 48 of the arm 47 and the roller 48, and a guide roller 50 is provided on the proximal side of the arm 47. Is provided.
The auxiliary roller 49 and the guide roller 50 are not shown in FIG. 1 for convenience of illustration.

A fixed pulley 51 is provided under the bearing case 41 coaxially with the drive shaft 40 as shown in FIGS. 1 and 2, while a stay pulley 46 is rotatably provided with a satellite pulley 52. A belt 53 is wound around the satellite pulley 52 and the fixed pulley 51.

The shaft 54 of the satellite pulley 52 extends downward as shown in FIG.
The flexible shaft 57 has one end attached to the lower end of the shaft 54.

The other end of the flexible shaft 57 is the roller 4 at the tip of the arm 47 as shown in FIG.
It is connected to 8 shafts. In FIG. 1, 58 is a roller 48.
The bearing case of is shown.

A box pallet 59 is arranged in the frame 22 below the unwinding device 20 thus constructed, as shown in FIG.

Next, the operation will be described.

First, the end of the weather strip 25 is inserted between the flat belt pulleys 32 and 33 of the take-up device 21 and held by the belts 37 and 38, respectively.
7, 38 are orbited by a driving device (not shown). As a result, the weather strip 25 is sent to the upper portion of the take-up device 21, reaches the inside of the drive shaft 40 between the flat belt pulleys 34 and 35, and is guided by the roller 48 at the tip of the arm 47 to reach the inside of the box pallet 59.

When the motor 43 of the unwinding device 20 is driven and the drive shaft 40 rotates via the belt 45, the stay 46 rotates. The rotation of the stay 46 causes the belt 5 to move between the bearing case 41 and the fixed pulley 51.
The satellite pulley 52 of the stay 46 connected by 3 orbits while rotating around the fixed pulley 51, and this rotational force is transmitted from the shaft 54 of the satellite pulley 52 to the roller 48 via the flexible shaft 57. .. Specifically, the rotation speed of the arm 47 is A rpm, the fixed pulley 5
The diameter of 1 is D1 mm, the rotation speed of the satellite pulley 52 is Brp
m, the diameter of the satellite pulley 52 is D2 mm, and the diameter of the roller 48 is D3 mm, the rotational force given by A × D1 = B × D2 is transmitted to the roller 48 by the flexible shaft 57, and B × D3 is fed to the roller 48. It gives speed. Therefore, the stay 46, that is, the arm 47
The weather strip 25 wound around the box pallet 59 in a tactile shape by rotating the
It is positively and smoothly sent out by the roller 48 at the tip portion of 7. The rotation direction of each member is indicated by an arrow in FIG.

Here, since the roller 48 of the arm 47 is rotated by the pivotal movement of the stay 46, a separate motor or the like is not required, and it can be manufactured at a low weight and at a low cost, and the motor or the like is attached to the arm 47. As in the case, it is not necessary to take measures against twisting of the wiring.

Further, since the unwinding device 20 can be arranged above the box pallet 59, the whole device is smaller and the arrangement space is smaller than that of the conventional device using the link mechanism.

When there is a difference between the pushing speed and the take-up device 21, the sensors 26, 27 and 28 detect the degree of bending of the weather strip 25 to make an adjustment.

[0031]

As described above, according to the present invention, the work supplied to the central portion is wound downward by the arm that rotates around the central portion.
Compared with the conventional link system, there is an effect that the device space is small.

Further, since the roller is rotated by utilizing the rotational driving force of the arm, a motor or the like for independently rotating the roller is not required. Therefore, as compared with the conventional case in which the motor is attached to the winding portion. There is an effect that it can be manufactured at low cost.

[Brief description of drawings]

FIG. 1 is a perspective view of an essential part of an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is an overall side view.

FIG. 4 is an overall front view.

FIG. 5 is an explanatory plan view of a conventional technique.

[Explanation of symbols]

22 ... Frame, 25 ... Weather strip (string-like work), 40 ... Drive shaft, 46 ... Stay, 47 ... Arm,
48 ... Roller, 48A ... Shaft, 51 fixed pulley, 52 ... Satellite pulley, 54 ... Shaft, 57 ... Flexible shaft.

Claims (1)

[Claims] 1. A cylindrical drive shaft into which a cord-shaped work is inserted is provided in the frame with the vertical direction as an axis, and a stay extending outward is fixed to the lower end of the drive shaft, and an arm extending downward to the stay. Is fixed, a roller is provided at the tip of the arm for guiding the string-like work inserted into the drive shaft downward, and a fixed pulley is provided around the drive shaft at a position coaxial with the drive shaft on the frame. Is provided with a satellite pulley linked to a fixed pulley, one end of a flexible shaft is attached to the shaft of the satellite pulley, and the other end of the flexible shaft is fixed to the shaft of the roller. Unwinding device.