JPH0626491Y2 - Sewing machine button individual feeder with individual feeding function - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Industrial field of application) The present invention relates to an individual button feeding device of a button feeding device for feeding buttons one by one onto a button holding member of a button sewing machine.

(Prior Art) As a conventional device of this type, for example, JP-A-55-17 is used.
As shown in Japanese Patent Publication No. 6, first and second locking members are rotatably arranged outside the button guide body having a button transfer passage, and the locking members are used for button transfer. It is known that buttons are intermittently transferred one by one along the button transfer path by alternately projecting into the path.

(Problems to be Solved by the Invention) However, in this conventional device, the second locking member presses and engages with the upper surface of the button in the button transfer passage to prevent the button from sliding down. Therefore, there is a problem that the button may be damaged or damaged, and static electricity causes the button to be adsorbed on the button transfer passage, resulting in clogging of the button.

Further, in the above-mentioned conventional device, the second engaging member continues to be engaged with the upper surface of the corresponding button before the first engaging member comes out of the button transfer passage during the forward movement, and the first engaging member during the backward movement. The second locking member is separated from the upper surface of the button after the stop member has entered the button transfer passage, but this operation is performed only by the elastic action force applied to the free ends of both locking members. Therefore, there is a problem in that it is difficult to accurately represent a shift in operation timing, and a button supply error or button clogging occurs.

Configuration of the Invention (Means for Solving Problems) The present invention has been made by paying attention to the above problems, and surely prevents the button from being damaged or damaged. In addition, it is possible to prevent the button from being clogged due to static electricity sticking to the button transfer passage, and moreover, there is a shift in the operation timing between the first locking member and the second operating member. Can be accurately generated by the action of the lost motion connecting means, and the buttons can be smoothly and reliably transferred one by one without causing a button supply error or a button clogging.

Therefore, the button supply device of the present invention has a button transfer passage extending obliquely downward from the button introduction part toward the button extraction part, and the button introduced from the button introduction part slides down by its own weight along the button transfer passage. And a button guide member for guiding the transfer to the button guide part, and a button guide part and a button holder so that the button derived from the button guide part of the button guide body is carried out onto the button holder of the button sewing machine. In a button supply device having a button unloading body movably provided between corresponding two positions, the button supply device is supported so as to be reciprocally rotatable around an axis in the vicinity of the button transfer passage and retracted to the outside of the button transfer passage. And the non-locking position that allows the button to slide down, and the state in which it protrudes into the button transfer passageway contacts the outer peripheral surface of the button to prevent the button from sliding down and A first locking member that is rotatably arranged at a transmission position on the opposite side of the non-locking position with the locking position sandwiched between the first locking member and the first locking member. Drive means for alternately moving between the non-locking position and the transmission position, and the first locking member in the vicinity of the first locking member separately around the one axis. A button transfer passage between the button, which is rotatably supported and is always biased in one direction, and which is prevented from sliding down by the first locking member, and the next button following the button. It is placed in a locking position that prevents the sliding of the next button when it enters the inside, and when it is rotated in the other direction against the biasing force, it retracts outside the button transfer passage and slides down the next button. And a second engaging member disposed in a non-engaging position that allows the first engaging member and the second engaging member. When the first locking member is pivotally arranged from the non-locking position to the locking position by the driving means, the first locking member does not act on the second locking member and continues to the first locking member. When the locking member is rotated from the locking position to the transmission position, it acts on the second locking member to move it from the locking position to the non-locking position, and at the same time, the driving means causes the first locking. When the member is rotationally arranged from the transmission position to the non-locking position via the locking position, the first locking member is allowed to rotate by the biasing force of the second locking member.
The lost motion linking means for arranging the second locking member in the locking position before the locking member reaches the non-locking position.

(Operation) Therefore, in the button transfer passage 9 of the button guide body 8, the first and second locking members 52, 63 alternately contact the outer peripheral surface of the button B in a state where the predetermined operation timing is deviated. As a result, the downhill movement of the button B is intermittently prevented, and accordingly, the button B is smoothly and reliably transferred one by one.

Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings.

Therefore, first, an outline of the button supply device of this embodiment will be described below.
Explaining with reference to the drawings, a button sewing machine 2 is installed on the work table 1, and a bed B for holding the button B above the work cloth at a position corresponding to the vertical movement path of the needle 4. A pair of button holding members 5 are supported via a support arm 6 so as to be vertically rotatable. A button supply unit 7 is arranged on the table 1 in the vicinity of the sewing machine 2 so that the buttons B housed inside are continuously fed out with the front side facing up. A button guide 8 is arranged on the table 1 between the sewing machine 2 and the button supply unit 7, and an oblique button transfer passage 9 is provided above the button guide 8 to guide the button B so that the button B can slide down by its own weight. Are formed.

A shooter member 10 is provided between the button supply unit 7 and the button guide body 8, and a button B sent from the button supply unit 7 is a button transfer passage of the button guide body 8 via the shooter member 10. 9 is temporarily sent by the individual button feed mechanism described later in the middle of the transfer passage 9 and then intermittently sent one by one from the foremost one to reach the button standby portion at the end of the transfer passage 9, In the same section, it stands by in a stationary state.

A button position correcting member 11 is vertically movable and rotatable above the button standby portion, and the correction member 11 is pressed against the button B of the button standby portion to correct and rotate the button B. ing. A button carrying-out body 12 is rotatably arranged below the correction member 11, and as shown in FIG. 3, two pins that can be fitted into the holes h of the button B are provided on the upper surface of the supporting portion 13 thereof. The fitting portion 14 is formed to project. Then, with the button unloading body 12 correspondingly arranged below the button standby portion, the button B is placed on the support portion 13.
Is delivered, and the hole h of the button B is fitted into the fitting portion 14 by the action of the correction member 11 to position the button B, and then the button carry-out body 12 reaches a position corresponding to the button holding member 5 of the sewing machine 2. The button B is rotated and passed over the holding member 5.

Therefore, the button guide 8 and the individual button feed mechanism will be described in detail. As shown in FIGS. 3 and 5, a support plate 21 is provided on the table 1 with a mounting frame 22 and a mounting plate 2.
3, the button guide body 8 has a guide groove 21a extending in the longitudinal direction and is formed in a horizontal state with the pair of symmetrical button guide members 24A having a substantially triangular front shape. 24B, and the guide members 24A and 24B are supported on the support plate 21 so as to be movable in the directions toward and away from each other.
It is held by the holding plate 25 on the upper part 3.

As shown in FIGS. 1, 3 and 6, the button transfer passage 9 is formed to have a width corresponding to the diameter of the button B by making the step recesses on the upper surfaces of the button guide members 24A and 24B correspond to each other. It extends obliquely downward from a button introduction portion 26 at the right end toward a button lead-out portion 27 as a button standby portion at the left end. A transparent cover 28 is attached to the upper surfaces of the button guide members 24A and 24B, and covers the upper portion of the button transfer passage 9 in a see-through manner.

As shown in FIGS. 1, 3 and 4, the front button guide member 24
The adjustment member 2 is provided on the button guide member 24B in the rear through the A.
9 is screwed, and by rotating this adjusting member 29, the width of the button transfer passage 9 can be adjusted by changing the distance between the button guide members 24A and 24B. Both button guide members 2 in a state of being fitted into the adjusting member 29.
A spring 30 is interposed between 4A and 24B, and an adjustment member 29
When the button is rotated in the loosening direction, the action of the spring 30 moves both button guide members 24A and 24B in the direction of separating them.

As shown in FIGS. 1 and 3 to 6, the button guide member 24
Two first button position restricting members 3 are provided at the left ends of A and 24B.
1 is formed so as to engage with the button B of the button standby portion 27 from the right outside. Corresponding to both the first button position restricting members 31, two second button position restricting members 32 are screwed through the pair of elongated holes 33 between the tip end portions of the button guide members 24A, 24B. It is supported by a screw 34 so as to be movable left and right, and is engaged with the button B of the button standby portion 27 from the outside on the left side. And this 4
The button B of the button standby portion 27 is surrounded from the peripheral side by the individual button position regulating members 31, 32, and the center thereof is the rotation axis of the button position correcting member 11 and the button unloading body 1.
The second support portion 13 is positioned so as to match the center of the support portion 13.

As shown in FIGS. 3 and 4, the button guide members 24A,
First and second guide grooves 35, 36 forming guide means are formed on the lower surface of 24B and on the support plate 21. The first and second guide grooves 35, 36 are slanted outward rightward about the corresponding surfaces of both guide members 24A, 24B. It is extended. Engagement pins 37 are provided on the support plate 21 so as to engage with the first guide grooves 35, and second engagement pins 37 are formed.
A stepped screw 38 is screwed into both guide members 24A and 24B from below the support plate 21 through the guide groove 36 of the first guide plate, and the adjustment member 29 adjusts the distance between the button guide members 24A and 24B. The button position regulating member 31 is integrally formed with the guide members 24A and 24B, and the button standby portion 27 is formed.
The button B is moved toward or away from the center of the button B by the same amount of movement.

Further, a third guide groove 39 which constitutes a guide means is formed on the support plate 21 corresponding to the second button position restricting member 32, and the third guide groove 39, which is a guide means, is formed on the outer left side centering on the corresponding surfaces of the two guide members 24A and 24B. It extends diagonally toward you. An engagement pin 40 is provided so as to project from the lower surface of the second button position restricting member 32 so as to engage with the third guide groove 39, and as the distance between the button guide members 24A and 24B is adjusted by the adjusting member 29, The second button position restricting member 32 is moved by the same amount of movement as the first button position restricting member 31 in the direction toward or away from the center of the button B of the button standby portion 27.

Below the button guide members 24A and 24B, a shutter plate 41 having a substantially rectangular plane is supported in a guide groove 21a of a support plate 21 so as to be movable left and right, and a protrusion 4 is provided at a rear portion thereof.
1a is formed. The shutter plate 41 closes the lower portion of the button standby portion 27 as shown in FIGS. 1, 3 to 5 and the right closed position where the lower portion of the button standby portion 27 is opened as shown in FIG. The button B of the button standby portion 27 is moved from the open position to the open position, and the button B of the button standby portion 27 is held stationary from below in a horizontal state to stand by.
At the open position, the button B is transferred onto the support portion 13 of the button carry-out body 12.

As shown in FIGS. 3 and 5, a solenoid 42, which constitutes a driving means, is supported on the mounting frame 22 behind the right end of the shutter plate 41, and an armature 43 is projectingly provided on the front surface thereof. The mounting frame 22 is provided in front of the solenoid 43.
On the upper side of the rotary lever 44 is a stepped screw 45 at the center.
The armature 43 is connected to one end of the shutter plate 41 through the long hole 44a and the pin 46, and the other end thereof is connected to the shutter plate 41 through the long hole 44b and the pin 47. ing.

A spring 49 is mounted between the other end of the rotating lever 44 and the spring retaining body 48 on the support plate 21 to urge the rotating lever 44 to rotate clockwise in FIG. The shutter plate 41 is always held in the closed position shown by the solid line in the figure. When the armature 43 is retracted by the excitation of the solenoid 42, the rotating lever 44 is rotated counterclockwise against the action of the spring 49.
As shown by the chain line in FIG. 5, the shutter plate 41 is moved to the open position.

As shown in FIGS. 1, 3, 5, and 6, a rotating shaft 51 is supported at a substantially central portion of a rear button guide member 24B so as to be reciprocally rotatable around a vertical axis. Button transfer passage 9
A first locking member 52 having a cylindrical shape is integrally rotatably fitted and fixed near the upper end of the rotary shaft 51 so as to face the inside, and the outer peripheral surface thereof is fitted to the rear side surface of the button transfer passage 9. A possible cutout surface 52a is formed. As shown in FIG. 6, the first locking member 52 has a notch surface 52a arranged obliquely to the rear side surface of the button transfer passage 9 as shown in FIG. A portion that protrudes into the button transfer passage 9 and contacts the outer peripheral surface of the button B in this state to prevent the button B from sliding down;
As shown in the figure, the cutout surface 52a is arranged so as to match the rear side surface of the button transfer passage 9, and a part of the outer periphery thereof is retreated to the outside of the button transfer passage 9 to allow the button B to slide down.
Is arranged at the non-locking position which is the arrangement position of, and the opposite side of the locking position which is the first arrangement position (the left side in FIG. 6). 3), the lost motion linking means 61, 61b, 66 to be described later act on the second locking member 63 to position it from the locking position to the non-locking position, as shown in FIG. It is arranged so as to rotate in three positions including a transmission position which is a third arrangement position.

As shown in FIGS. 3 and 5, a rotating arm 53 is fixed to the lower end of the rotating shaft 51, and the shutter plate 4 is attached to the lower surface thereof.
A pin 53a that can be engaged with the first protruding piece 41a is provided in a protruding manner. A spring 56, which constitutes a driving means together with the solenoid 42, is mounted between the rotation arm 53 and the spring hooking bodies 54 and 55 provided on the support plate 21.
The rotating arm 53 is urged to rotate in the clockwise direction in FIG. 5 by a spring force weaker than the spring 49 for urging the rotation of the armature 4.

Then, as shown by the solid line in FIG.
When the shutter plate 41 is moved to the closed position based on the action of the spring 49 due to the demagnetization of No. 3, the rotating arm 53 resists the action of the spring 56 by the engagement of the protrusion 41a and the pin 53a. The first locking member 5 is rotated in the counterclockwise direction.
2 is arranged in the non-locking position, and when the shutter plate 41 is moved to the open position against the action of the spring 49 due to the excitation of the solenoid 42 as shown by the chain line in FIG. , The projecting piece 41a is disengaged from the pin 53a, and the rotating arm 53 is rotated clockwise by the action of the spring 56.
The locking member 52 is pivotally arranged at the locking position.

As shown in FIGS. 1, 3 and 6, on the front surface of the front button guide member 24A in the vicinity of the first locking member 52,
A second linking member 61, which constitutes a linking means for causing the second locking member 63 to perform a lost motion action, has a horizontal screw separate from the first locking member 52 by a stepped screw 62 at the lower end near the left side. It is rotatably supported around the axis and is always urged to rotate in the clockwise direction in FIG. 3 by its own weight or a weak spring force. On the rear surface of the linking follower 61, a second locking member 63 made of a wire rod is provided with a bolt 64 to form an elongated hole 61.
A position-adjustable attachment is provided along a, and a locking portion 63a that is projected and retracted in the button transfer passage 9 with the rotation of the linked follower 61 is bent and formed at the tip thereof.

The second locking member 63 is always provided in the button transfer passage 9 between the frontmost button B and the subsequent button B following the locking portion 63a as shown in FIGS. When it enters and is placed at a locking position for preventing the next button B from sliding down, and when the linked follower 61 is rotated counterclockwise in FIG. 3 against the rotational biasing force, As shown by the chain line in FIG. 3 and also in FIG. 6, the locking portion 63a is retracted to the outside of the button transfer passage 9, and the next button B
It is arranged in a non-locking position that allows the vehicle to slide down.

A cylindrical body 65 is fitted and fixed to the upper end of the rotary shaft 51 above the first locking member 52, and a rod-shaped linkage actuation body 66 which constitutes a linkage means together with the linkage driven body 61 on the outer periphery thereof. Is projected toward the front. Further, an engaging recess 61b is formed at the upper end edge of the linked follower 61 so as to engage with the link actuating body 66. Then, when the first locking member 52 is rotated from the non-locking position shown in FIG. 1 to the locking position shown in FIG. 6, the linkage operating body 66 is the engaging recess of the linkage driven body 61. When the first locking member is idled in 61b and then further rotates clockwise from the locking position shown in FIG. 6 to the transmission position which is the third arrangement position (FIG. 3), the linkage operation is performed. The body 66 engages with the side edge of the recess 61b to transmit the turning force, and the second locking member 63 moves from the locking position shown in FIG. 1 to the non-locking position shown in FIG. When the first locking member 52 is rotated from the transmission position shown in FIG. 3 to the non-locking position shown in FIG. 1 via the locking position shown in FIG. The body 61 is allowed to rotate and rotates, and the second locking member 63 moves to the locking position shown in FIG. 1 before the first locking member 52 reaches the non-locking position. The lost motion action to be placed, that is, the timing at which each of the first and second locking members 52 and 63 is placed at their respective action positions is shifted by a predetermined time difference, so that one button B is surely pressed. It is designed to be sent.

Therefore, in this button supply device, the solenoid 4
When 2 is de-excited, the shutter plate 41 is alternately arranged between the closed position shown by a solid line and the open position shown by a chain line in FIG. The pivot shaft 51 is reciprocally pivoted through the first pivot member 51, and the first locking member 52 is pivotally arranged from the locking position to the non-locking position and the transmission position as shown in FIGS. The second locking member 63 is alternately arranged at the locking position and the non-locking position with the first locking member 52. At this time, the second locking member 63 is the first locking member 53 from the transmission position to the sixth position.
When rotated to the unlocked position shown in FIG. 1 through the locked position shown in the figure, the linked follower 61 is allowed to rotate, and the first locking member 52 is unlocked. Second before reaching the stop position
The locking member 63 of the first locking member 63 is arranged at the locking position shown in FIG.
2, 63 alternately contact the outer peripheral surface of the button B due to the shift of the operation timing, and the sliding down of the button B in the button transfer passage 9 is intermittently prevented, and one button B is placed in the button standby portion 27. The shutter plate 4 is transferred accurately and smoothly.
When the button 1 is opened, it is delivered onto the button unloading body 12.

Also, when changing button B to one with a different diameter,
By rotating the adjusting member 29, the interval between the pair of button guide members 24A and 24B is changed, and the width of the button transfer passage 9 can be easily adjusted according to the diameter of the button B. At this time, as is apparent from FIG. 4, the first and second button position restricting members 31, 32 have the first to third positions.
By the guiding action of the guide grooves 35, 36 and 39, the buttons are moved by the same movement amount in the direction toward or away from each other with the center of the button B in the button standby portion 27 as a reference. Therefore,
The center of the button B on standby in the button standby portion 27 is the center of the support portion 13 of the button unloading body 12 and the button position correction member 1.
The hole h of the button B is smoothly fitted into the fitting portion 14 on the support portion 13 of the button carrying-out body 12, and the operation of delivering the button B to the button carrying-out body 12 is performed. It can be done smoothly without mistakes.

The invention is not limited to the configuration of the above-described embodiment, and the configurations of the respective parts can be arbitrarily modified and embodied without departing from the spirit of the invention.

Effect of the Invention As described in detail above, the invention can surely prevent the button from being damaged or broken, and the button may be stuck on the button transfer passage due to static electricity to cause the button clogging. Can also be prevented,
Moreover, due to the lost motion action between the first locking member and the second locking member, a shift in the operation timing is accurately generated between the first locking member and the second locking member. ,
If the first locking member allows passage of the button, the second
When the locking member blocks passage and the first locking member rotates from the transmission position to the non-locking position, the second locking member in the non-locking position first locks. Since the upper button of the button placed in the position where the first locking member passes is securely locked, and the first locking member is then placed in the non-locking position, the button supply This has an excellent effect that the buttons can be smoothly and reliably transferred one by one without causing mistakes or clogging of the buttons.

[Brief description of drawings]

1 is a plan view showing a button individual feeding mechanism part in a button supply device embodying the present invention, FIG. 2 is a perspective view showing the whole button supply device, and FIG. 3 is a partially cutaway front view of FIG. FIG. 4 is a partial cross-sectional view of FIG. 1, FIG. 5 is a cross-sectional view of a portion different from FIG. 4, and FIG. 6 is a plan view showing the operating state of FIG. In the figure, 8 is a button guide, 9 is a button transfer passage, and 1
2 is a button carrying-out body, 24A and 24B are button guide members,
26 is a button introduction part, 27 is a button standby part as a button derivation part, 41 is a shutter plate, 42 is a solenoid, 52
Is a first locking member, 56 is a spring which constitutes a driving means together with a solenoid, 61 is a linking follower, 63 is a second locking member, and 66 is a linking actuation body which forms linking means with the linking follower. is there.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-55-176 (JP, A) JP-B-48-13031 (JP, B1) JP-B-56-52195 (JP, Y2)

Claims (1)

[Scope of utility model registration request] 1. A button transfer passage (9) extending obliquely downward from a button introducing part (26) toward a button extracting part (27), and a button (B) introduced from the button introducing part (26). A button guide body (8) that slides down along the button transfer passage (9) by its own weight and guides the transfer to the button lead-out portion (27), and is led out from the button guide portion (27) of the button guide body (8). The button pull-out portion (27) is so arranged that the button (B) is carried out onto the button holding member (5) of the button sewing machine.
A button supply device comprising a button holding member (5) and a button unloading body (12) movably provided between two corresponding positions, in the vicinity of the button transfer passageway (9) around an axis. A non-locking position that is supported so as to be reciprocally rotatable and that is retracted to the outside of the button transfer passage (9) to allow the button (B) to slide down;
Button (B) with protruding into button transfer passage (9)
A first locking member that contacts the outer peripheral surface of the button (B) to prevent the button (B) from sliding down and is pivotally arranged at a transmission position opposite to the non-locking position with the locking position interposed therebetween. 52) and driving means (42, 56) for moving the first locking member (52) alternately between the non-locking position and the transmission position via the locking position. And is rotatably supported in the vicinity of the first locking member (52) separately from the first locking member (52) about one axis, and is always biased in one direction. In this state, the first locking member (52) enters the button transfer passage (9) between the button (B) which is prevented from sliding down and the next button (B) following the button (B). Is located at a locking position that prevents the next button (B) from sliding down, and is rotated in the other direction against the biasing force. The second locking member (63) that is retracted to the outside of the button transfer passage (9) and is arranged at a non-locking position that allows the next button (B) to slide down, and the first locking member. Member (52) and second locking member (63)
When the first locking member (52) is pivotally arranged from the non-locking position to the locking position by the drive means (42, 56), the second locking member ( 63) and does not act on the second locking member (63) when the first locking member (52) is continuously rotated from the locking position to the transmission position. When the first locking member (52) is moved from the transmission position to the non-locking position via the locking position by the driving means (42, 56) while being moved to the locking position, the second locking member (52) is moved to the second locking position. Locking member (6
3) allowing the rotation by the urging force of the first locking member (5
The second locking member (63) before 2) reaches the unlocked position
The lost motion linking means (6
1, 61b, 66) and a button individual feeding device for a sewing machine having an individual feeding function.