JPH0424010B2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a traversing device that wraps noodle strings, which are intermediate raw materials, around a pair of rolling pins in a figure-eight shape during the noodle manufacturing process. This is an attempt to improve the cross-loop mechanism for performing figure-eight movements.

(Prior Art) The operating principle of the cross-loop mechanism in a conventional traversing device is to perform a figure-eight motion by combining a reciprocating motion in the horizontal direction and a motion in the vertical direction. The transversely moving member is oscillated or linearly reciprocated with a constant stroke, and during this period, for example, a cam is used to give the transversely moving member vertical motion to perform a figure-eight motion. A traversing device equipped with this type of cross-loop mechanism is known, for example, from Japanese Patent Publication No. 56-4212.

(Problems to be Solved by the Invention) In the conventional device as described above, the figure-of-eight motion is synthesized based on the reciprocating motion in the lateral direction, so it is difficult to operate the cross-loop mechanism at high speed. There was a limit to the speed of twilling work. In addition, a mechanism for horizontal movement and a mechanism for vertical movement are required, and they must be synchronized accurately, making the cross-loop mechanism complex and requiring highly precisely machined mechanisms such as cams. There were disadvantages such as the need for parts, the overall manufacturing cost was high, and there were problems in that durability was lacking.

This invention solves the above-mentioned problems, and by synthesizing figure-of-eight motion with a pair of left and right rotational movements, the speed of the cross-loop mechanism is increased, and the efficiency of traversing work is improved. The purpose is to realize the following.

Other objects of the invention are to simplify the structure of the cross loop mechanism and reduce the manufacturing cost of the traversing device;
The goal is to simultaneously improve durability.

(Means for Solving the Problems) In the present invention, a figure-of-eight motion is synthesized by a pair of left and right rotational motions in opposite directions. For example, assume that in three links connected in an N-shape, the links at both ends are rotated in opposite directions. At this time, the distance between the connection points of the intermediate links is made equal to the distance between the rotation center axes of the rotating links. Then, the intermediate link moves left and right while continuously changing its tilt posture along the locus circle of the left and right rotating links. If the locus of one point in the center of this intermediate link is extracted, it will be in the shape of a figure eight.

This invention constructs a cross-loop mechanism using the above-mentioned movement principle. In addition, in the above-mentioned triple link, since the rotational motion of the left and right links is inconstant motion in opposite directions, a differential gear device is interposed in the drive system of the flow link, and the rotational speed difference that occurs between both links is It was designed to be able to absorb

Specifically, as shown in FIG. 1, it is composed of a cross loop mechanism 16, a drive mechanism 17 including a differential gear device 22, and a loop conversion mechanism 18. The loop conversion mechanism 18 includes a pair of arms 3 fixed to a pair of drive shafts 25, 25 and rotating in opposite directions.
3, 33, and a connecting arm 34 that connects the two arms 33, 33 to each other.
The three arms 33, 33, 34 are connected in a triple link shape so that the rotational motion of the arms 3, 33 can be converted into a figure-of-eight motion at the center of the connecting arm 34.
The two arms 33,
Differential gear device 2 to absorb the rotational speed difference of 33
2 to intervene.

(Function) As a result, in the present invention, the pair of arms 33, 33 that rotate in opposite directions, and both arms 33, 33
The rotational movement of both arms 33, 33 is combined by the connecting arm 34 that connects the connecting arm 34.
Since the figure-of-eight motion is performed at approximately the center of the shaft and the motion of the motion converting member is made into a circular motion, the motion speed can be easily and reasonably increased, and the traversing work can be carried out at high speed. 3 arms 33, 33, 3
It is assumed that the circular motion can be converted into a smooth figure-of-eight motion by 4, and the arms 33, 33 that perform the circular motion
Since the difference in rotational speed of is absorbed by the differential gear device 22, the cross-loop mechanism 16 structure can be simplified and durability can also be improved.

(Effects of the Invention) As explained above, in the present invention, the figure-8 motion is synthesized based on the circular motion of the pair of arms 33, 33 rotating in opposite directions. The motion of each member can be made into a circular motion that is less likely to cause vibrations due to shock or kinetic inertia. Therefore, the cross-loop mechanism 16 can be operated at high speed, and the work efficiency of the traversing work can be significantly improved, thereby increasing productivity.

Also, a pair of arms 33, 33 and both arms 3
Since the circular motion can be converted into a figure-eight motion by three members including the connecting arm 34 connecting the two, the structure of the cross-loop mechanism 16 can be simplified compared to conventional devices. This not only reduces the manufacturing cost of the traversing device, but also reduces the probability of failure and improves durability.

(Embodiment) FIGS. 1 to 5 show an embodiment in which the present invention is applied to a traversing device for producing somen noodles.

In FIGS. 4 and 5, a chuck 3 that grips and fixes one end of a pair of rolling pins 2 is placed on the machine base 1.
and a noodle string supplying member 4 that moves in a figure-eight shape between a pair of noodle hanging rods 2, 2 while supplying thick string-like noodle strings A, are arranged to face each other in the front and rear. As shown in FIG. 5, the chucks 3 are arranged in four stages in the vertical direction, and four noodle string supply members 4 are also provided in the vertical direction corresponding to each stage.

Each chuck 3 is supported by a chuck stand 5, and the chuck stand 5 is supported by a feed stand 7 via a rotary cylinder 6. Further, this feed stand 7 is supported by a pair of left and right guide shafts 8 fixed to the machine stand 1 so as to be slidable back and forth, and a feed screw shaft 9 provided parallel to the guide shafts 8 is used to control the noodle strings. It is configured to move forward and backward relative to the supply member 4. That is, from the initial state shown in FIG. 4, the feeding table 7 is gradually moved back as shown by the dotted arrow, and during this time the noodle strings A are stretched in a figure 8 pattern by the noodle string supplying member 4. This means that the noodle strings A are continuously stretched over the rod 2 in the longitudinal direction. Thereafter, the rotary cylinder 6 is driven to swing the chuck stand 5 outward from the side surface of the machine stand 1 around its pivot shaft 6a as shown by the imaginary line. In this state, the rolling pin 2 is removed from the chuck 3 and sent to the next process, and a new rolling pin 2 is attached to the chuck 3. The rotary cylinder 6 is again used to rotate the chuck stand 5 in the opposite direction, and the feed screw shaft 9 is driven to return the feed stand 7 to its initial state. In FIG. 5, a female screw body 10 is fixed to the lower side of the feed base 7, and is screwed into the screw shaft 9.

A vertical plate-shaped table 12 is provided at the front end of the machine stand 1, and this table 12 supports four noodle string supply members 4. The table 12 is connected to the machine base 1 through a pair of upper and lower horizontal guide shafts 13 and a pair of left and right vertical guide shafts 14 supported by the guide shafts 13.
It is supported so that it can move vertically and horizontally. A passive plate 15 is fixed to the lower end of the table 12, and the passive plate 15 is
By driving in a figure 8 shape, four noodle string supply members 4 can be simultaneously driven in a figure 8 shape via the table 12. In FIG. 5, the noodle string supply member 4 includes a tube body 4a that feeds and guides the noodle strings A;
It consists of a cup-shaped nozzle 4b attached to the tip thereof, and is configured to rotate the nozzle 4b by a driving means (not shown) to twist the noodle strings A and perform twilling.

In FIGS. 1 and 5, the cross loop mechanism 16 includes a drive mechanism 17 and a loop conversion mechanism 18 that receives the power of the drive mechanism 17 and generates a figure-eight motion. The drive mechanism 17 includes a motor 2
0, a bevel gear type differential gear device 22 which inherits this motor power via a coupling ring 21, and a pair of left and right drive shafts 23 of this differential gear device 22, which are interlockably connected via a pair of bevel gears 24. A pair of left and right drive shafts 25, 25, and each drive shaft 2
The bearing unit 26 supports the bearings 5 and 25. The differential gear device 22 includes an input shaft 27, a drive pinion 28, a ring gear 29, a pair of differential gears 30 supported by the ring gear 29, a pair of side gears 31 that mesh with the differential gears 30, a drive shaft 23, and the like. be done. The left and right drive shafts 25, 25 are connected to each other via a drive shaft 23 and a bevel gear 24 so as to rotate in opposite directions.

1 and 2, the loop conversion mechanism 18 includes a pair of arms 33, 33 fixed to the drive shafts 25, 25 and rotating in opposite directions,
A connecting arm 34 that connects both arms 33 to each other.
and a driving roller 35 that is pivotally supported at the center of the connecting arm 34. At this time, the radius of rotation of the left and right arms 33 is the same, and the radius of rotation is set smaller than the center distance B, which will be described later. Further, the connecting arm 34 is connected to each arm 33 via a pin 36 so as to be relatively displaceable, and the center distance B between the left and right pins 36 is made to match the center distance C between the left and right drive shafts 25. Note that when connecting the connecting arm 34 to both arms 33, the reference phase position of each arm 33 is such that the center of the pin 36 of each arm 33 is located on a line connecting the centers of the drive shafts 25. .

The above-mentioned loop conversion mechanism 18 combines the rotational movements of a pair of arms 33, 33 rotating in opposite directions by a connecting arm 34, and a drive roller 3 provided at the center thereof.
Move 5 in a figure 8 shape. This drive roller 35
By fixing a cylindrical coupler 37 to the passive plate 15 correspondingly and fitting the coupler 37 onto the drive roller 35, the figure-eight motion is transferred from the loop conversion mechanism 18 to the table 12 via the passive plate 15. I'm trying to convey it.

The operation conversion of the loop conversion mechanism 18 from a circular motion to a figure-eight motion will be described below.

In FIG. 3, the arm 33 on the left side when facing the figure
The movement loci of the three arms 33, 33, 34 and the drive roller 35 are continuously shown, assuming that the arms are rotating at a constant velocity. Both arms 33,
In the rotation locus of 33, the decimal numbers surrounded by white circles corresponding to the pins 36 indicate the corresponding positions of the pins 36 of both arms 33, 33 during rotation, respectively.
Now, since both arms 33 and 33 rotate in opposite directions, when the arm 33 on the side that is assumed to move at a constant velocity moves in the lower half of the trajectory from decimal 1 to 7, it moves in the direction shown in the figure. The arm 33 on the right side is
Move in the upper half of the trajectory circle as indicated by decimal numbers 1 to 7. Further, the connecting arm 34 is connected to both arms 3
While connecting the corresponding decimal digits 3 and 33, continuously change the tilt posture from horizontal to right upward tilt, and then continuously change the tilt posture from right upward tilt to horizontal posture and turn right. move in the direction. At this time, if we pay attention to the locus of the drive roller 35 indicated by the black circle, it depicts a gentle S-shaped curve.

Similarly, when the left arm 33 makes the remaining half rotation in the upper half of the trajectory circle, the right arm 33 moves in the lower half of the trajectory circle, and at this time, the connecting arm 34 is horizontal. From the posture, it tilts upward to the left, and moves to the left while continuously changing its posture from the upward tilting posture to the horizontal posture. The locus of the drive roller 35 is symmetrical to the S-curve described above, and draws a flat 8-shaped locus as a whole. Note that, in reality, both the left and right arms 33, 33 perform inconstant circular motion, and the difference in rotational speed between them is absorbed by the differential gear device 22.

The figure-of-eight motion of the driving roller 35 is transmitted to the noodle string supplying member 4 via the passive plate 15 and the table 12, and the four noodle string supplying members 4 operate simultaneously to hold the noodle strings A on the noodle stick. 2 and 2 in a figure 8 shape.

According to the cross-loop mechanism 16 configured as described above, the circular movement of the pair of arms 33, 33 allows the
Since the figure-eight motion is synthesized, the operating speed of the operating member can be increased compared to conventional devices, and the figure-eight motion can be performed smoothly. Therefore, the operating speed of the cross-loop mechanism 16 can be more than twice that of the conventional device, and the efficiency of the traversing work can be significantly improved. Also, three arms 33, 33, 34 for motion conversion connected in an N-shape, a differential gear device 22 for absorbing rotational speed, and a motor 2.
Since the cross loop mechanism 16 is configured with 0, etc.,
Overall, the structure of the cross loop mechanism 16 is simplified, and the manufacturing cost of the traversing device can be reduced and the durability improved. Furthermore, in the embodiment described above, since the drive roller 35 can be moved in a flat figure-eight shape, there is no waste in the movement locus, which is advantageous in speeding up the work.

(Modification) The pair of arms 33 and the connecting arm 34 may both be formed into a disk shape.

The drive mechanism 17 may be configured to inherit drive power from a mechanism other than the cross-loop mechanism 16, and in this case, the motor 20 can be omitted.

Although it is preferable that the drive roller 35 is located at the center of the connecting arm 34, the figure-of-eight motion can be performed even when the driving roller 35 is located near the center of the connecting arm 34, so the positioning at the center is not limited.

In the above embodiment, in order to simultaneously drive the four noodle string supply members 4, the table 12 and the passive plate 1 are used.
5, the noodle string supplying member 4 is indirectly driven by the cross loop mechanism 16, but this is not necessarily necessary. For example, an auxiliary arm may be formed integrally with the connecting arm 34 in a branched manner, and the noodle string supplying member 4 may be supported at the tip of the auxiliary arm.

The differential gear device 22 does not need to be of the bevel gear type, but may be of the spur gear type. Also,
Either one of the pair of drive shafts 25, 25 is rotated at a constant speed, and the operating gear device 2 is rotated only in the drive system of the other.
2 may be interposed.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a diagram of the principle structure of the cross-loop mechanism, FIG. 2 is a front view of the loop conversion mechanism, FIG. 3 is an explanatory diagram of the locus of the loop conversion mechanism, and FIG. A plan view of the hanging device, and FIG. 5 is a longitudinal side view of the cross-loop mechanism. 2... Noodle pin, 3... Chuck, 4... Noodle string supply member, 16... Cross loop mechanism, 17... Drive mechanism,
18... Loop conversion mechanism, 22... Differential gear device, 2
5... Drive shaft, 33... Arm, 34... Connecting arm,
A...Noodle strings.

Claims (1)

[Scope of Claims] 1. A noodle string supplying member 4 that wraps the noodle strings A in a figure-eight shape around a pair of rolling pins 2 supported by a chuck 3, and driving the noodle strings supplying member 4 in a figure-eight shape. A pair of arms 33, 33 that are fixed to a pair of drive shafts 25, 25 and rotate in opposite directions, and a connecting arm 3 that connects both arms 33, 33.
4 constitutes a loop conversion mechanism 18 that converts the rotational motion of both arms 33, 33 into a figure-of-eight motion approximately at the center of the connecting arm 34, and a drive mechanism that applies rotational force to the drive shafts 25, 25. 17, a differential gear device 22 that absorbs the difference in rotational speed between the two arms 33, 33 is interposed, and the loop conversion mechanism 18 and the drive mechanism 17 including the differential gear device 22 form the cross loop mechanism 16.
A noodle string twilling device characterized by comprising: