JPS6313215Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial field of application The present invention relates to a button processing device for attaching snap buttons, crimping buttons, rivets, etc. to clothing fabrics, and fitting caps to button bodies, rivets, etc. The present invention relates to a button processing device equipped with a safety mechanism in a pocket, which processes parts such as buttons by vertical movement of a punch.

Prior Art A button processing device that processes button parts, etc. by lowering a punch with an upper pocket at the lower end relative to a die of a lower unit using a drive mechanism such as an air cylinder, is designed to process button parts, etc. when the punch is lowered. Since the button part is attached to the clothing fabric by clamping it between the punch and the lower die unit, it is very dangerous to get your fingers or tools caught between the punch and the die of the lower die unit. It had the problem that.

In order to solve this problem, it has been considered to provide a safety cover between the upper mold unit and the lower mold unit, or to provide a safety device separately from the punch and pocket, but such a configuration This inevitably increases the size of the machine, narrows the field of view to the parts, makes it difficult to set the position of the button parts when attaching them to clothing fabric, and makes the work extremely difficult when removing the button parts. This has the disadvantage of being cumbersome.

Purpose of the invention This invention was made with attention to the points mentioned above.
Provides safety when attaching buttons, etc. to clothing fabric without providing a safety cover or separate safety device, and allows attachment of button parts to clothing fabric without interfering with visibility to button parts, etc. An object of the present invention is to provide a button processing device equipped with a safety mechanism that makes it easy to perform button processing.

Structure of the invention The above object is to separate the punch mechanism and the upper pocket mechanism of the button part, and to create a safety mechanism in which the upper pocket mechanism lowers first due to its own weight and engages with a lift pin provided on the upper pocket mechanism side. This is achieved by applying a signal to the detection means via a lever and lowering the punch mechanism in response to the signal from the detection means.

Embodiments Hereinafter, the present invention will be explained based on embodiments shown in the drawings.

The button processing device 1 shown in FIGS. 1 to 7 includes an upper pocket mechanism 2 that supports upper parts A one by one;
Lower pocket mechanism 3 that supports lower parts B one by one
and a pusher mechanism 6 that sends the parts A and B to the upper and lower pocket mechanisms 2 and 3 via the upper and lower part guides 4 and 5.
, a component supply mechanism 9 that supplies components to component guides 4 and 5 via chute 7 and 8, and a punch mechanism 1 that presses and attaches upper component A and lower component B to clothing fabric.
0, and a safety mechanism 1 that is connected to the upper pocket mechanism 2 and works together with the upper pocket mechanism 2 to ensure safety.
1, and is supported by a base 12 and frames 13, 13 fixed on the base 12, respectively.

As shown in FIG. 3, the upper pocket mechanism 2 includes two pocket holders 15, 15 having cam followers 14, 14 at their upper ends, and two upper pocket holders attached to the lower ends of the pocket holders 15, 15. It consists of pocket fittings 16, 16 and a slide ram 17 having a U-shaped cross section.

The pocket holders 15, 15 are rotatably attached to the slide ram 17 via holder pins 18, 18.
, and sloped surfaces 19, 19 are formed on opposing surfaces of the upper portion. A pocket portion 20 for gripping the upper part A is formed in the upper pocket fittings 16, 16.

Above the pocket holders 15, 15, a cam plate 22 with downwardly tapered holes 21, 21 is provided.
is fixed to.

A compression coil spring 24 is interposed between the spring case 23 and the cam plate 22, so that the cam plate 22 is urged downward and the taper 2
1 and 21 abut against the cam followers 14 and 14 and urge the upper portions of the pocket holders 15 and 15 outward, so that the pocket holders 15 and 15 always maintain a constant centering.

The cam plate 22 and the spring case 2
3 has a plate shape in the illustrated example, but this is to prevent the entire device from increasing in size, and is not necessarily limited to this embodiment. A shaped one may also be used.

Lift pins 25, 25 that engage with the second safety lever 83 of the safety mechanism 11 are provided on both sides of the slide rum 17.

The upper pocket mechanism 2 is vertically movable between a guide cover 26 and a spacer plate 27 attached to the frames 13, 13.

The lower pocket mechanism 3 includes a die 29 fixed to a die holder 28 and on which the lower component B is placed, two lower pocket fittings 30, 30 arranged on the left and right sides of the die 29, the lower pocket fittings 30, 30, and an upper pocket pin 3.
Pocket holder 3 connected via 1 and 31
2, 32, and the lower pocket metal fittings 30, 30.
is rotatable relative to pocket pins 31, 31 (Fig. 3).

At the upper part of the lower pocket fittings 30, 30, claw parts 34, 34 having sloped surfaces 33, 33 are formed, respectively, thereby forming a lower pocket part 35 for gripping the lower part B, and at the lower part, an inner surface side is formed. A compression coil spring 36 is provided at the inclined position, and the lower pocket portion 35 grips the lower part B by the elasticity of the compression coil spring 36. A holder pin 37 is provided at the bottom of the pocket holders 32, 32 so as to bridge the pocket holders 32, 32.
The tip of the swing lever 38 is engaged with.

By the retreat of the pusher mechanism 6, the cam follower 39 is pushed down, and the roll lever 4 is pushed down.
0 and the lever pin 41, the swing lever 38 rotates around the pin 42, so that the pocket holder 32 and the lower pocket fittings 30, 30 are lowered via the holder pin 37, and at the same time as this lowering, the peripheral edge of the component B is and the slopes 33, 33 of the claw parts 34, 34 come into contact with each other, and the lower pocket part 35 is gradually pushed open against the compression coil spring 36.

The pusher mechanism 6 includes a pusher holder 46 to which an upper pusher 43 and a lower pusher 44 are attached and has a roller pin 45, and a guide 47 on which the pusher holder 46 slides back and forth (left and right in FIG. 2).
and the pusher lever 4 that engages with the roller pin 45.
8, and the lever 48 is the main lever 74.
It is pivoted on a lever pin 75 and is urged toward the punch mechanism 10 by a tension coil spring 49.

The pusher mechanism 6 includes an air cylinder 72
As the piston 73 rises, the pusher lever 4
8 and retreats along the guide 47 against the tension coil spring 49 via an actuating pin 79 provided on the main lever 74 that engages at the upper part of the main lever 74 .

The parts supply mechanism 9 includes a first hopper 50 for storing the upper part A and a second hopper 51 for storing the lower part B.
, the parts A and B are moved up and down in the hoppers 50 and 51.
pick-up plates 52 and 52 for transferring the liquid to each chute 7 and 8;
Slide blocks 54, 54 having the flanges 53, 53 of No. 2, 52 fixed to the front surface, and a slide guide 55 on which the slide blocks 54, 54 slide,
55, and a lift lever 5 that engages with pins 56, 56 provided on the slide blocks 54, 54, respectively.
7, 57 and this lift lever 57, 57 to the shaft 5
Air cylinder 59 rotated at 8,58
The piston 60 of the air cylinder 59
Due to the rise of the pick-up plates 52,5
2 is lowered via slide blocks 54,54.

The pick-up plates 52, 52 have their upper edges inclined toward the respective chute 7, 8, and
As shown in FIG.
1 and 61 are formed, and by fitting the flanges of parts A and B into these notches 61 and 61, parts A and B are picked up and transferred to respective chutes 7 and 8. Parts trays 62, 62 provided in each hopper 50, 51 are configured so that each part A, B can be rolled and gathered at one corner 63, 63 on the pick-up plates 7, 8 side.

The parts A and B transferred to the respective chute 7 and 8 are fed to the upper part guide 4 and the lower part guide 5, respectively, and are transferred one by one to the upper pocket part 20 and the lower pocket part 35 by the pushers 43 and 44. Ru.

The punch mechanism 10 includes a punch case 64 that opens downward, a punch holder 65 provided at the bottom of the punch case 64, and a rod-shaped punch 66 that has one end fixed to the top of the punch case 64 and the other end inserted into the punch holder 65. A compression coil spring 67 is interposed between the punch case 64 and the punch holder 65, and the punch holder 65 is urged downward.

The upper end of the punch case 64 is formed with two-pronged flanges 68, 68.
A lever pin 69 is horizontally suspended from 68. One of the toggle links 70 is pivotally supported by this lever pin 69, and the other toggle link 70 is pivotally supported by a pivot pin 71 pivotally supported by the frame 13.

As the piston 73 of the air cylinder 72 rises, the main lever 74 rotates around the lever pin 75, and the link 74 connected to the main lever 74 rotates.
The punch case 64 is moved downward between the ram guide 78 and the spacer plate 27 by expanding the toggle links 70, 70 connected to the link 76 by a link pin 77 via the ram guide 78 and the spacer plate 27.

As shown in FIG. 4, the safety mechanism 11 is connected via a first safety lever 81 to which a sensor bracket 80 is fixed at one end, and a lever shaft 82 whose other end is pivotally supported by a pair of frames 13, 13. A second safety lever 83 (FIGS. 2 and 3) formed in two connected prongs; an air cylinder 85 whose upper portion of a piston 84 urges the sensor bracket 80 downward;
One end of the second safety lever 83 engages with lift pins 25, 25 provided on both sides of the slide ram 17.

The piston 84 of the air cylinder 85 is normally urged downward, whereby the upper pocket mechanism 2 is held in the upper position as shown in FIG. 2 via the first safety lever 81 and the second safety bar 83. has been done.

Next, the operation of the safety mechanism according to the present invention will be explained.

When the attachment positions of parts A and B to the clothing fabric are determined and a switch (not shown) is turned on, the compressed air input that was urging the piston 84 of the air cylinder 85 downward is cut off in response to the signal. , the downward force on the piston 84 is removed. Then,
The pocket mechanism 2, which was held in the upper position via the safety levers 81 and 82 due to the downward force of the piston 84, falls due to its own weight. As the upper pocket mechanism 2 falls due to its own weight,
A second safety lever 83 that engages with lift pins 25, 25 provided on both sides of the slide ram 17.
The first safety lever 81 fixed to the lever shaft 82 rotates clockwise in FIG. 4, and the piston 84 and sensor bracket 80 move as indicated by the chain line in FIG. Rise as shown.

If no foreign object, such as a finger or a tool, is present between the upper pocket mechanism 2 and the lower pocket mechanism 3, the upper pocket mechanism 2 is lowered to a position where it presses the clothing fabric, as shown in FIG.

The elevated sensor bracket 80 turns on the detection means 86 when the bolts 87, 87 provided at the upper part of the sensor bracket 80 hit the detection means 86. In response to the input, the detection means 86 sends a signal to lower the punch mechanism 10, thereby causing the piston 73 of the air cylinder 72 to rise and the punch mechanism 10 to descend as shown in FIG.

If a foreign object such as a finger is inserted between the upper pocket mechanism 2 and the lower pocket mechanism 3, the upper pocket mechanism 2 will stop falling at that position, and as a result, the elevated sensor bracket 80 will not hit the detection means 86 and will not be detected. No operating signal is sent to the punch mechanism 10 from the means 86 and the punch mechanism 10 is not lowered.

Therefore, even if a finger or the like accidentally gets interposed between the upper and lower pocket mechanisms 2 and 3 when attaching parts A and B to the clothing fabric, the impact will only be caused by the falling weight of the upper pocket mechanism 2, and the punch mechanism will 10 dangers due to descent are avoided.

Effects of the invention As described above, the present invention has a safety system in which the punch mechanism and the upper pocket mechanism are separated, and the upper pocket mechanism lowers first due to its own weight and engages with the lift pin provided on the upper pocket mechanism side. A signal is given to the detection means via the lever, and the detection means sends an operation signal to the punch mechanism so that the punch mechanism is lowered. Therefore, when attaching parts to clothing fabric, there is no need to worry about the gap between the upper and lower pocket mechanisms. Even if a foreign object such as a finger intervenes, the punch mechanism will not descend due to the impact caused by the fall of the upper pocket mechanism's own weight, which has the effect of avoiding the danger of the punch mechanism descending. Since it also serves as a mechanism, there is no need to bother installing a separate safety device.
This has the effect that there is no problem in confirming the mounting position of parts on clothing fabric.

[Brief explanation of the drawing]

Fig. 1 is a front view of the button processing device, Fig. 2 is an enlarged sectional view taken along the - line in Fig. 1, Fig. 3 is an enlarged sectional view taken along the - line in Fig. 2, and Fig. 4 is an enlarged sectional view taken along the - line in Fig. 1. Fig. 5 is an enlarged sectional view of the hopper, Fig. 6 is an enlarged sectional view of the upper pocket mechanism lowered, and Fig. 7 is an enlarged sectional view of the hopper.
The figure is an enlarged sectional view with the punch mechanism lowered. A: Upper part, B: Lower part, 2: Upper pocket mechanism, 3: Lower pocket mechanism, 10: Punch mechanism, 1
5: Pocket holder, 16: Upper pocket metal fittings,
17: Slide ram, 18: Holder pin, 2
0: Upper pocket part, 25: Lift pin, 80: Sensor bracket, 81: First safety lever,
82: Lever shaft, 83: Second safety lever,
86: Detection means.

Claims (1)

[Scope of Claim for Utility Model Registration] In a button processing device that processes parts A and B by moving a punch mechanism 10 up and down relative to a lower pocket mechanism 3, an upper pocket fitting 16 having an upper pocket part 20 that grips an upper part A. , 16 at the bottom, and the pocket holder 1.
5 and 15 are rotatably attached via holder pins 18 and 18, and a slide ram 17 has lift pins 25 and 25 on both sides, and is provided separately from the punch mechanism 10 and is movable up and down. an upper pocket mechanism 2; a second safety lever 83 that engages with the lift pins 25, 25; and the second safety lever 8.
3 and a first safety lever 81 which is rotatably connected via a lever shaft 82 and has a sensor bracket 80 at one end, and a detection means 86 for detecting that the upper pocket mechanism 2 has been lowered. 11, and according to the detection signal of the detection means 86,
A button processing device equipped with a safety mechanism, characterized in that the punch mechanism is driven.