JPH0125598B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Field of Industrial Application) The present invention relates to a button conveying device used, for example, when supplying buttons to a button holding member of a button sewing machine.

(Prior art) As a conventional device of this type, for example,
As shown in Publication No. 176, a button that is transferred along a button transfer path of a button guide is held in a nearly horizontal state in a button waiting section at the end of the transfer path, and in this state, a button is placed on the top surface of the button. The position correcting member is pressed and the button is corrected and rotated, and the button is transferred from the button waiting section onto the button carrying body below, so that the hole of the button is fitted into the fitting part on the button carrying body. It is known that it is composed of

(Problems to be Solved by the Invention) However, in this conventional device, the button position correction member is moved by the action of a cam provided on a common drive shaft for driving the button delivery body, etc.
Since the rotation is driven at a predetermined timing for a certain period of time, the rotation of the correction member is stopped and the rotation of the button transporting body is stopped when the hole of the button is not fully inserted into the fitting part on the button transporting body. There has been a problem in that there is a risk that the button sewing machine may cause a mistake in feeding the button onto the button holding member of the button sewing machine.

Structure of the Invention (Means for Solving the Problems) The present invention has been made by focusing on the above-mentioned problems. The button is rotated by the position correction member, and the button can be accurately positioned at a predetermined position on the button delivery body, thereby reliably preventing mistakes in feeding the button onto the button holding member of the button sewing machine. In addition, the button delivery body is moved from the receiving position to the delivery position immediately after the button positioning is completed, eliminating wasteful waiting time and carrying out the conveyance operation quickly.

To this end, the button conveyance device of the present invention includes a button guide body 8 having a button conveyance passage 9, and a button standby body which is provided corresponding to the end of the button conveyance passage 9 and waits the button B in a substantially horizontal stationary state. part 8a and button B of the button standby part 8a
A button delivery body 12 is provided movably between a receiving position corresponding to the above from below and a delivery position spaced apart from the receiving position, and has a fitting part 14 which can be fitted from below into the hole h of the button B of the button waiting part 8a. , and a first driving means 112 for moving the button delivery body 12 between the receiving position and the delivery position.

Above the button B of the button standby section 8a,
The button position correction member 11 can be moved up and down by the third driving means 41 between an active position where it engages with the upper surface of the button B in a downwardly biased state and an inactive position where it is spaced upward from there. It is rotationally driven by the second driving means 28 and transmits its rotation to the button B in the operating position, thereby correcting and rotating the button B to a predetermined position and opening the hole h of the button B into a button. Insertion part 1 of delivery body 12
It is designed to be inserted into 4.

Moreover, the button position correction member 11 or button B
An optical sensor 49 as a detection means is disposed in correspondence with the rotation of the button position correction member 11, and the hole h of the button B is inserted into the insertion part 1 of the button carrying body 12.
When the position correction of the button B is completed by inserting the button B into the button 4, the button position correction member 11 or the button B is moved downward by a predetermined amount, and the button B is activated to output a signal.

Further, a CPU 61 as a control means is connected to the optical sensor 49, and based on a signal from the optical sensor 49, the third driving means 41 is actuated to move the button position correction member 11 to the inactive position. In addition, the first driving means 112
is actuated to move the button delivery body 12 from the receiving position to the delivery position.

(Function) Therefore, as the button position correction member 11 rotates, the button B of the button standby section 8a is rotated for correction.
The hole h of the button B is the insertion part 1 on the button carrying body 12.
4, the optical sensor 49 detects the downward movement of the button position correction member 11 or the button B, and the output signal from the optical sensor 49 causes the button position correction member 11 to be separated from the button B. As the rotation of B is stopped,
The button delivery body 12 is moved from the receiving position to the delivery position, and the button B is quickly transported.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

First, an overview of the button conveying device of this embodiment will be explained with reference to FIG. At the top, a pair of button holding members 5 for holding in positions corresponding to the vertical movement path of the needle 4 are supported via a support arm 6 so as to be rotatable up and down. Said sewing machine 2
A button supply unit 7 is disposed on the table 1 in the vicinity of the button supply unit 7, and the buttons B accommodated therein are continuously fed out with the front side facing up. A button guide member 8 is disposed on the table 1 between the sewing machine 2 and the button supply unit body 7, and an oblique button transfer passage 9 is provided above the button guide member 8 for guiding the button B so that it can slide down by its own weight. is formed.

A shutter member 10 is provided between the button supply body 7 and the button guide body 8, and the button B sent out from the button supply body 7 passes through the button transfer path of the button guide body 8 through this shutter member 10. 9, and after being temporarily stopped by a button individual feeding mechanism (not shown) in the middle of the transfer path 9, the pieces are intermittently fed out one by one starting from the most recent one. As shown in FIG. 1, a button waiting portion 8a is provided at the tip of the button guide 8 corresponding to the end of the button transfer passage 9, and a solenoid 66 (shown in FIG. 9) is provided at the bottom of the button guide 8. In the closed state of the shutter plate 8b, which is disposed so as to be able to open and close in the left-right direction, the button B transferred along the button transfer path 9 is transferred to the button waiting section 8.
It is designed to stand by in a horizontal, stationary state at point a.

A button position correction member 11 is disposed above the button B of the button standby section 8a so as to be movable up and down and rotated. It is now possible to correct the rotation. The correction member 11
A button carrying body 12 is rotatably disposed below the button B, and as shown in FIGS. A fitting portion 14 is provided in a protruding manner. Then, the button carrying body 12 receives the button B onto the support part 13 at a receiving position corresponding to the button B of the button standby part 8a from below, and receives the button B from the correcting member 1.
After the hole h of button B is inserted into the insertion part 14 and the button B is positioned by the action of step 1, the button delivery body 12 is rotated to the delivery position corresponding to the button holding member 5 of the sewing machine 2. The button B is adapted to be delivered onto the holding member 5.

Therefore, the supporting structure of the button position correction member 11 and the button carrying body 12 and the driving structure of both 11 and 12 will be explained in detail with reference to FIGS. 1 and 3 to 8.
A support frame 21 is arranged above. The button position correction member 11 is made of an elastic material with high frictional resistance such as rubber, and is rotatably and vertically supported by a support frame 21 via a bearing metal 23 by a support shaft 22 extending upward. The button standby portion 8a is movably arranged between a lower working position where it engages with the upper surface of the button B and a non-working position spaced upward therefrom. A spring 25 is interposed between a collar 24 provided approximately at the center of the support shaft 22 and the upper bearing metal 23, and urges the button position correction member 11 to move toward the lower operating position. There is.

Further, the button carrying body 12 is rotatably supported via a bearing metal 27 by a support shaft 26 extending upward from its base end, and the button is waiting in the support portion 13 as shown by the solid line in FIGS. 3 and 4. It is rotatably arranged at a receiving position corresponding to the button B of the section 8a from below and a delivery position corresponding to the button holding member 5 of the sewing machine 2, as shown by the chain line in the same figure.

On the other hand, a motor 28 as a second driving means is supported on the support frame 21.
8 and the support shaft 22 of the button position correction member 11, a rotation shaft 29 and a reciprocating rotation shaft 30 are respectively supported on the support frame 21 so as to be rotatable around vertical axes. The rotation of the motor 28 is transmitted to the rotating shaft 29 via the gear 31 on the motor shaft, the intermediate gear 32, and the gear 33 on the rotating shaft 29, and the rotation of the rotating shaft 29 is transmitted to the rotating lever at the lower end. 34, is transmitted to the reciprocating shaft 30 via the intermediate connecting link 35 and the swinging lever 36 at the lower end of the reciprocating shaft 30, so that the reciprocating shaft 30 is reciprocated within a predetermined angle range. There is.

Further, a gear 37 is fixed to the upper end of the reciprocating rotation shaft 30, and a gear 38 meshing with the gear 37 is movable in the vertical direction near the upper end of the support shaft 22 of the button position correction member 11. inserted,
A pin 39 on the support shaft 22 is attached to the shaft cylinder portion of the gear 38.
A long hole 38a is formed to engage with. The rotation of the reciprocating rotation shaft 30 causes the gear 37,
38 to the support shaft 22, so that the button position correction member 11 is constantly rotated back and forth.

At the left end of the motor 28, the support frame 2
1 supports a solenoid 41 as a third driving means, and has an armature 42 protruding from its rear surface. Behind the solenoid 41, a rotating lever 43 is attached to the support frame 21 with a stepped screw 44.
The armature 42 is rotatably supported by the armature, and an armature 42 is connected to the intermediate portion thereof. An elevating lever 45 is rotatably supported by a stepped screw 46 on the support frame 21 between the solenoid 41 and the support shaft 22 of the button position correction member 11, and one end of the elevating lever 45 is connected to the tip of the rotating lever 43. A connecting link 47 is interposed between them, and a support shaft 2 is provided at the other end.
An engagement roller 48 is rotatably attached to the collar 24 on the top of the collar 24 from below.

When the solenoid 41 is demagnetized, the armature 42 is in the protruding state as shown in FIGS. When the correction member 11 is held in the upper inactive position against the action of the spring 25 and the armature 42 is retracted with the excitation of the solenoid 41, it is raised and lowered via the rotation lever 43 and the connecting link 47. The lever 45 is rotated to the lowered position, and the button position correction member 11 is moved downward to the operating position by the action of the spring 25 and engaged with the upper surface of the button B, as shown by the chain line in FIGS. 1 and 3. It's becoming like that.

As shown in FIGS. 1, 3, and 4, an optical sensor 49 as a detection means consisting of a light emitting element and a light receiving element is mounted on the support frame 21 corresponding to the upper end of the support shaft 22 of the button position correction member 11. They are arranged via a plate 50. Then, as described above, the button position correction member 11 is placed in the working position where it engages with the button B as the solenoid 41 is energized, and is rotated back and forth by the rotation of the motor 28, and as the button B rotates, the button position correction member 11 is placed in the working position where it engages with the button B. Button carrying body 12
When the position correction of the button B is completed by fitting into the fitting part 14 of the button B, the support shaft 22 of the button position correction member 11
The upper edge of the
The optical sensor 49 is activated based on the fact that the button B is lowered to the position by the thickness of the button B, and the output signal from the optical sensor 49 causes the solenoid 41 to be activated.
is demagnetized, and the button position correction member 11 is moved away from the active position on the button B to the non-active position above.

Next, the reciprocating mechanism 110 for reciprocating the button carrying body 12 will be explained in detail with reference to FIGS. axis 111
is rotatably supported around a horizontal axis extending in the left-right direction. A pulse drive type motor 112 constituting a first driving means is supported on the support frame 21 near the right end of the rotation shaft 111, and the rotation of the motor 112 rotates the rotation shaft 111 via gears 113 and 114. ing.

An elevating cam 115 for elevating and lowering the button holding member 5 of the sewing machine 2 and a rotating cam 116 for reciprocating the button carrying body 12 are fixed on the rotating shaft 111. A first ascending cam portion 115a and a second ascending cam portion 115b are formed. Lifting cam 115
A driven lever 117 is rotatably supported by a support shaft 118 at an intermediate portion of the support frame 21 in the vicinity of the support frame 21, and an engagement roller 119 that engages with a lifting cam 115 is rotatably supported at one end of the driven lever 117. At the same time, an engagement pin 121 is provided protruding from the other end to engage with a lift arm 120 provided on the support arm 6 for the button holding member 5 from below.

When the lifting cam 115 is rotated in accordance with the rotation of the motor 112, as is clear from FIG. R1, the button holding member 5 of the sewing machine 2 is moved to the button carrying body 1 via the lift arm 120.
The second lifting cam portion 115b then rotates the driven lever 117 from the chain line position R1 to R2 in the same figure to hold the button B on the sewing machine 2. Part 5
is further rotated upward, and the button B delivered onto the holding member 5 is inserted into the fitting part 14 of the button delivery body 12.
It is designed so that it can be extracted upward from the top.

Further, in the vicinity of the rotation cam 116, a driven lever 122 is rotatably supported by a support shaft 123 at an intermediate portion of the support frame 21, and an engagement roller 12 held by the rotation cam 116 is attached to one end of the driven lever 122.
4 is rotatably supported. A rotary lever 125 is fixed to the upper end of the support shaft 26 of the button carrying body 12, and a connecting link 126 is connected to a universal joint 127 between its tip and the other end of the driven lever 122.
are connected via. Then, the motor 1
12, the driven lever 122 is rotated back and forth between the solid line position and the chain line position in FIG. The button B is rotated back and forth between the receiving position shown in solid lines and the delivery position shown in chain lines in FIGS. It is designed to be delivered onto the holding member 5.

Next, the electric circuit of the button conveying device will be explained based on FIG. 9.

A ROM 62 that stores programs for the entire device in advance and an input/output interface 63 are connected to the CPU 61 as a control means. On the input side of the input/output interface 63, the optical sensor 49 detects the origin position of the pulse drive type motor 112 that drives the button delivery body 12 and detects that the button delivery body 12 is at the delivery position. A delivery position detection sensor 64 for detecting the stoppage of the main shaft of the button sewing machine 2, a sewing machine stop sensor 65 for detecting stoppage of the main shaft of the button sewing machine 2, and a start switch 68 are connected to the sewing machine.

On the other hand, on the output side of the input/output interface 63, the solenoid 41 for raising and lowering the button position correction member 11, the shutter plate operating solenoid 66 for opening and closing the shutter plate 8b, and the button carrying body 12 drive The motor 1 for
12, the motor 28 for imparting rotational motion to the button position correction member 11, and a sewing machine starting solenoid 67 for controlling starting and stopping of the main shaft of the button sewing machine 2 are connected.

Next, the operation of the button conveying device configured as described above will be explained with reference to a program that is executed under the control of the CPU 61 shown in FIG.

Now, when the start switch 68 is turned on (step S1), the button position correction member 1
The motor 28, which imparts rotational motion to the button 1, is activated (step S2), and the button position correction member 11 is rotated back and forth. Then, due to the action of an individual button feeding mechanism (not shown), the button B is moved to the button waiting portion 8a along the button transfer path 9 of the button guide 8.
is transferred and held on standby on the shutter plate 8b in the closed position, the solenoid 41 is energized (step S3), and the button position correction member 11 is lowered to the operating position where it engages with the upper surface of the button B. Button B is rotated for correction. Thereafter, the shutter plate actuating solenoid 66 is energized (step S4), the shutter plate 8b is opened, and the button B is delivered onto the support part 13 of the button carrying body 12, and the hole in the button B is h is fitted into the fitting part 14 of the button carrying body 12, and the button B is positioned at a predetermined position.

When the position correction of button B is completed in this way,
Based on the lowering of the support shaft 22 of the button position correction member 11, the optical sensor 49 is activated for detection (step S).
5) The solenoid 41 is demagnetized by the output signal (step S6), and the button position correction member 11 is demagnetized (step S6).
is raised to the inactive position and rotation of button B is stopped. In this state, the motor 112 for driving the button delivery body is started (step S).
7) When the button discharging body 12 is rotated from the solid line position to the chain line position in FIGS. 3 and 4, and the delivery position detection sensor 64 detects that the button discharging body 12 has reached the delivery position (step S8),
The button B is delivered onto the button holding member 5 of the sewing machine 2. Therefore, the button B is reliably positioned on the button carrying member 12, and the transfer operation of the button B to the button holding member 5 is performed accurately and smoothly. Thereafter, the sewing machine starting solenoid 67 is energized (step 9), and the button sewing machine 2 is driven to sew button B onto the workpiece cloth. When button B has been sewn, the sewing machine stop sensor 65 The button sewing machine 2 is stopped based on the signal (step S10).
Ru.

It should be noted that the present invention is not limited to the configuration of the above-mentioned embodiments, and the configuration of each part can be arbitrarily changed and embodied without departing from the spirit of the invention.

Effects of the Invention As detailed above, in the present invention, the button is rotated by the button position correction member until the hole of the button fits into the fitting part on the button carrying body, and the button is placed in a predetermined position on the button carrying body. Accurate positioning is possible, and it is possible to reliably prevent mistakes in feeding the button onto the button holding member of the button sewing machine, and the button delivery unit immediately moves from the receiving position to the delivery position after button positioning is completed. This has the excellent effect of eliminating unnecessary waiting time and allowing the conveyance operation to be carried out quickly.

[Brief explanation of drawings]

FIG. 1 is a partial longitudinal cross-sectional view showing the related structure of a button position correction member in a button conveyance device embodying the present invention, FIG. 2 is a perspective view showing the entire button conveyance device, and FIG. 3 is a view similar to that shown in FIG. 4 is a partial plan view of FIG. 1, FIG. 5 is a partial plan view showing the reciprocating mechanism of the button delivery body, and FIG. 6 is a partial side sectional view of FIG. 5. 7 is a partial sectional view taken along the Y-Y line in FIG. 5, FIG. 8 is a partial sectional view taken along the Z-Z line in FIG. 5, FIG. 9 is a block diagram showing the electric circuit, and FIG. is a flowchart showing the operation of the CPU. In the figure, 8...button guide body, 8a...button standby section, 9...button transfer path, 11...button position correction member, 12...button delivery body, 14...
...Inset part, 22...Spindle, 25...Spring, 28...
...Motor as second driving means, 41... Solenoid as third driving means, 49... Optical sensor as detection means, 61... CPU as control means, 112... As first driving means motor.

Claims (1)

[Claims] 1. Button guide body 8 having button transfer passage 9
a button waiting section 8a provided corresponding to the terminal end of the button transfer path 9 and allowing the button B to wait in a substantially horizontal stationary state; and a receiving position corresponding to the button B from below in the button waiting section 8a; The button standby section 8a is provided so as to be movable between the delivery position and the delivery position spaced apart from the
Insertion part 1 that can be inserted into the hole h of button B from below
4, a first driving means 112 for moving the button carrying body 12 between the receiving position and the delivery position, and rotatable above the button B of the button waiting section 8a. The button B is supported so as to be movable up and down between an active position where it engages with the top surface of the button B in a state where it is biased downward and a non-active position that is spaced upward from there, and the button rotates itself in the active position. By transmitting the information to the button B, the button B is corrected and rotated to a predetermined position, and the hole h of the button B is inserted into the button carrying body 12.
Button position correction member 1 to be inserted into the insertion part 14 of
1, a second drive means 28 for imparting the rotational movement to the button position correction member 11, and a third drive means 28 for moving the button position correction member 11 between the inactive position and the active position. When the hole h of the button B fits into the insertion part 14 of the button carrying body 12 as the driving means 41 and the button position correction member 11 rotate, and the position correction of the button B is completed, the button position correction member 11 or the button a detection means 49 which is activated and outputs a signal based on the fact that B is moved downward by a predetermined amount; and a detection means 49 which operates the third drive means 41 based on the signal from the detection means 49 to actuate the button position correction member. 11 to the inactive position, and control means 61 for operating the first drive means 112 to move the button delivery body 12 from the receiving position to the delivery position. Button transport device.