JPH033548Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is a so-called eyelet crimping machine that crimps similar parts such as rivets, buttons, and hooks into predetermined positions on a workpiece such as clothing or a bag. The present invention relates to a transfer device that supplies a position every work cycle.

[Conventional technology]

As a conventionally well-known technique, there is a known machine of this type as disclosed in Japanese Patent Application Laid-Open No. 1395-1983. As shown in FIG. 8, a magazine (not shown) for storing a predetermined amount of the upper and lower parts of buttons, rivets, or the like extends vertically on the back, and this magazine is connected to a slider that moves up and down. (not shown).
And by the vertical movement of this, the upper part 10 of this
2 and the lower part are led to the tip of the upper stem 106 and the lower anvil 107 through supply rails 140 and 141, respectively. The supply rail 140 for supplying this upper part 102 is made to pass by its own weight, and is adapted to be supplied sequentially for each work cycle.

[Problem that the invention attempts to solve]

However, in such a device, the upper and lower parts are designed to slide down on the sloping supply rail due to their own weight, so if there is dirt or oil on the rail, the inside of the supply rail may fall. A blockage occurs during sliding down, and this part is not being fed every work cycle. In addition, if parts are not accurately supplied during work, the machine will operate without parts, resulting in damage to the products and the production of many defective products. Furthermore, in order to prevent this kind of so-called "dry firing", the worker must constantly check whether the parts are being accurately fed to the tip of the stem, which can lead to worker fatigue. There are problems such as easy.

[Means for solving problems]

This invention was devised with the aim of solving these problems and providing high-quality products by reliably supplying eyelets and other parts for each work cycle. Eyelet hook staking, in which the upper and lower hooks 2 and 3 supplied are held in their respective predetermined positions, and the held hooks 2 and 3 are pressed with a stem 6 to swam the upper and lower hooks 2 and 3 to the workpiece. In the machine, a vertical groove 42 is formed along the supply direction of the upper hook 2 on a supply rail 40 that aligns and supplies the upper hooks 2, and this vertical groove 4 is formed at a position along the supply rail 40.
The tip enters into the hook 2 and is movable, and the hook 2
The swinging arm 3 has a fixed pushing claw 33 that can push the
2 is arranged, and the lifting transmission member 13, which moves the stem 6 up and down, is placed on the rotating shaft 30 to which the swinging arm 32 is fixed, and timing is set so that one reciprocating movement of the lifting transmission member 13 completes one cycle of the caulking work. The timing linkage mechanism connects a guide arm 2 to a first connecting rod 21 pin-connected to the elevation transmission member 13.
2 are connected with a pin, and a rack 24 is connected to the guide arm 22 via a second connecting rod 23 so as to be movable up and down. A second gear 28 is engaged with the second gear 28, and the other end of a swinging lever 31, one end of which is fixed to the rotating shaft 30, is connected by a pin to a third connecting rod 29 that is moved up and down by the rotation of the second gear 28. This makes it possible to carry out work at reliable timing.

[Effect]

When the upper hooks 2 are supplied from the hopper in an aligned manner, they are aligned on the supply rail 40 and are prevented from falling, starting with the first one, by the separating disk 50. The separating disk 50 separates the upper hooks 2 one by one in each work cycle. The upper hook 2 separated in this way is attached to the supply rail 4.
0 due to its own weight. On the other hand, at the same time, the swinging arm 32 is moved to the pushing claw 3 fixed thereto.
3 rotates in the direction of entering the vertical groove 42 of the supply rail 40, the upper hook 2 is pushed by the claw 33 and moves forward, reaching the tip of the stem 6. Further, since the lower hook 3 is also supplied onto the lower anvil 7, the stem 6 is then lowered to caulk these upper and lower hooks 2 and 3. At this time, the swing arm 32 has already rotated in the opposite direction and escaped, so it does not have any influence on the lowering of the stem 6.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 7. In Figures 1 and 2,
Reference numeral 1 denotes a frame in which a hopper (not shown) for storing a predetermined amount of upper hooks 2 and lower hooks 3 is arranged at the rear part, and a stem 6 and an anvil 7 are arranged opposite to each other in the front part of this frame 1. ing. This stem 6 is inserted through a bracket 4 fixed to the frame 1 so as to be movable up and down, and the upper part of this stem 6 is connected to one end of a toggle mechanism 10 with a pin. The working rod 11 of this toggle mechanism 10 is always elastically biased rearward by a spring 12 wound around it. At the rear end of this working rod 11, one end of a lifting transmission member 13, which is swingably supported by the frame 1, is fixed in a position adjustable manner, and the other end is connected to a drive source (not shown). A connected lifting operation rod 14 is connected.

As shown in FIG. 3, a first connecting rod 21, which always moves in the opposite direction to the working rod 11, is connected to the elevation transmitting member 13 by a pin. One end of an inverted L-shaped guide arm 22 is connected to the other end of the first connecting rod 21, and these constitute a part of the timing connecting mechanism 20. A rack 24 is fixed to the other end of the guide arm 22 via a second connecting rod 23, and as this rack 24 moves up and down, a pinion 25 meshing with it rotates. This pinion 25
The first gear 2 is attached to the gear shaft 26 which rotatably fixes the
7 is integrally fixed, and this first gear 27 is connected to the second gear 27.
It meshes with gear 28. One end of a third connecting rod 29 is connected to the second gear 28 by a pin.
As shown in FIG. 4, the other end of the connecting rod 29 is connected to a swing lever 31 fixed to a rotating shaft 30 rotatably supported by the frame 1. A swinging arm 32 that rotates together with the rotating shaft 30 is fixed to the rotating shaft 30, and a pushing pawl 33 is fixed to the tip of the swinging arm 32.

In FIGS. 4 and 5, a supply rail 40 for supplying the upper hook 2 is arranged on the swinging trajectory of the pushing pawl 33, and the stem 6 is raised at the tip of this supply rail 40. At this time, the entrance 5a of the catcher 5 that holds the upper hook 2 is located at the tip of the stem 6. Also,
A blocking means formed of a spring or a sliding material is provided at the tip of the supply rail 40 to prevent the upper hook 2 from sliding off and popping out. A vertical groove 42 is formed in the bottom surface of the supply rail 40 along the rail 40, and is large enough to accommodate the pushing pawl 33 therein. On the other hand, above the supply rail 40, as shown in FIGS. 6 and 7, there is a separation circle that separates and supplies the upper hooks 2 aligned and supplied from the hopper that stores a predetermined amount of the upper hooks 2 for each work cycle. A plate 50 extends into the supply rail 40 and is rotatably mounted. A locking portion 51 for separating the upper hook 2 of the supply rail interior 40 is formed on the outer circumferential surface of the separation disk 50. Furthermore, a guide pin 52 is implanted in this separation disc 50, and this pin 52 is inserted into a guide groove 53a of a guide lever 53 which is pivotally supported so as to be swingable.
is mated to.

The other end of the guide lever 53 is pin-connected to a connecting arm 56 connected to a cam plate 55 that is rotatable by a predetermined amount under the action of a fourth connecting rod 54 integrally fixed to the guide arm 22. As a result, the separation disk 50 is configured to rotate intermittently in a clockwise or counterclockwise direction. In addition, the lower hook 3
is supplied onto the anvil 7 via the supply rail 41 from the hopper at the same time as the upper hook 2 is supplied.

Next, the operation of this embodiment will be explained. When a switch (not shown) to start work is turned on with the upper hook 2 and lower hook 3 held in the respective positions of the stem 6 and anvil 7 in advance,
As shown in FIGS. 1 and 2, the stem 6 descends to swage the upper hook 2 and lower hook 3 onto a workpiece (not shown). This downward movement of the stem 6 is caused by the action rod 1 being actuated by the elevation transmission member 13.
This is done by advancing 1. On the other hand, since the first connecting rod 21 retreats, the fourth connecting rod 54 connected to the guide arm 22 also retreats, and the cam plate 55 rotates counterclockwise. Since the guide lever 53 rotates clockwise via the connecting arm 56 due to the rotation of the cam plate 55, the first of the upper hooks 2 aligned and supplied within the supply rail 40 is connected to the locking portion of the separation disk 50. 51, as shown in FIG.
Only one piece is separated and slides down inside the supply rail 40. Further, at this time, the pushing pawl 33 fixed to the tip of the swing arm 32 has already retreated from the vertical groove 42 of the supply rail 40.

When the work is completed in this manner, the stem 6 subsequently starts to rise, so that the workpiece (not shown) can be taken out. On the other hand, when this stem 6 starts its upward movement, that is, the working rod 1
When the first connecting rod 21 starts to move backward when the first connecting rod 21 starts to move backward as a result of the movement of the moving rod 14, which is moved up and down by the driving source, through the lifting transmission member 13, the first connecting rod 21 starts to move forward. This forward motion causes the guide arm 22 to rotate counterclockwise, and the fourth connecting rod 54 also moves forward. As a result, the cam plate 55 rotates clockwise and the guide lever 53 rotates counterclockwise, so that the separation disc 50 rotates clockwise and the next upper hook 2 is held by the locking portion 51. Further, the upper hook 2, which has already slid down to a predetermined position and stopped, is then moved to the supply rail 40 by the pushing claw 33 of the swinging arm 32.
The inside is forcibly pushed. Then, when the stem 6 rises and the catcher 5 reaches its original position, the upper hook 2 is held by the catcher 5. Next, when the signal to start work is input again, the above operation is repeated and the work is performed.

[Effect of idea]

As is clear from the embodiments described above, the present invention holds the upper hook 2 and the lower hook 3, which are supplied independently for each work cycle, at predetermined positions, and connects the held hooks 2 and 3 to the stem. In the eyelet hook caulking machine which caulks the upper and lower hooks 2 and 3 to the workpiece by applying pressure at 6, a vertical groove 42 is formed along the supply direction of the hooks 2 in the supply rail 40 that aligns and supplies the upper hooks 2, This vertical groove 42 is located along this supply rail 40.
a swinging arm 32 having a movable pushing claw 33 fixed thereon, the tip of which penetrates into the
Further, a lifting transmission member 13 for lifting and lowering the stem 6 is connected to the rotating shaft 30 to which the swinging arm 32 is fixed, and timing is connected so that one reciprocating movement of the lifting transmitting member 13 completes one cycle of the caulking work. Since it is connected via the mechanism 20, even if there is dirt or oil on the rail, it will not become clogged while sliding down the supply rail, and this component will not be supplied every work cycle. will be completely eliminated. In addition, since parts are accurately supplied during work, the machine does not operate without parts, so products are not damaged and the number of defective products is reduced. Furthermore, since the operator does not have to check whether the upper hook is reliably positioned directly below the stem each time he or she performs the work, the operator's fatigue is reduced.

Further, in the timing connecting mechanism, a guide arm 22 is connected by a pin to a first connecting rod 21 which is connected to the lifting transmitting member 13, and a rack 24 can be moved up and down through the second connecting rod 23 to the guide arm 22. A second gear 28 is engaged with a first gear 27 which is connected to and can be rotated integrally with a pinion 25 that engages with this rack 24 and is rotatable, and a third connecting rod 29 that is moved up and down by the rotation of this second gear 28. Since one end of the swinging lever 31 is fixed to the rotating shaft 30 and the other end is connected with a pin, it is possible to achieve stable operation if the reliable timing of supplying the stem and the hook is set in advance. Unique effects such as long-life operation can be obtained.

[Brief explanation of drawings]

Fig. 1 is a sectional front view of the main part showing an embodiment of the present invention, Fig. 2 is a side view of Fig. 1, Fig. 3 is a front view of the transmission mechanism, and Fig. 4 is a side view of the main part of Fig. 3. , FIG. 5 is a side view of the main part during the hook supply operation, and FIGS. 6 and 7 are enlarged front views of the main part showing the hook separation operation.
FIG. 8 is a side view showing a conventional example. 1 is the frame, 2 is the top hook, 3 is the bottom hook,
4 is the bracket, 5 is the catch, 6 is the stem,
7 is an anvil, 10 is a toggle mechanism, 11 is an action rod, 13 is an elevation transmission member, 14 is an elevation operation rod,
20 is a timing connecting mechanism, 21 is a first connecting rod,
22 is a guide arm, 23 is a second connecting rod, 24 is a rack, 25 is a pinion, 26 is a gear shaft, 27 is a first gear, 28 is a second gear, 29 is a third connecting rod,
30 is a rotating shaft, 31 is a swing lever, 32 is a swing arm, 33 is a pushing pawl, 40, 41 are supply rails,
42 is a vertical groove, 50 is a separation disk, 51 is a locking portion, 5
2 is a guide pin, 53 is a guide lever, 53a is a guide groove, 54 is a fourth connecting rod, 55 is a cam plate, 5
6 is the connection arm.

Claims (1)

[Claims for Utility Model Registration] 1. Upper and lower hooks 2 and 3, which are supplied independently for each work cycle, are held in their respective predetermined positions, and the held hooks 2 and 3 are pressed with a stem 6 to move them up and down. In an eyelet hook staking machine that swages the hooks 2 and 3 onto a workpiece, a vertical groove 42 is formed along the feeding direction of the hooks 2 on a supply rail 40 that aligns and supplies the upper hooks 2. This vertical groove 4
A swinging arm 32 with a movable pushing claw 33 that is movable and capable of pushing the hook 2 is arranged, and the stem is attached to a rotating shaft 30 on which the swinging arm 32 is fixed. 6 is connected to a lifting transmission member 13 via a timing linkage mechanism 20 for lifting and lowering the parts. 2 The timing linkage mechanism is the front machine elevation transmission member 13
A guide arm 22 is connected with a pin to a first connecting rod 21, and a rack 24 is connected to this guide arm 22 through a second connecting rod 23 so as to be movable up and down, and can be rotated by meshing with this rack 24. The first
A third connecting rod 29 that meshes with the gear 27 and a second gear 28 and is moved up and down by the rotation of the gear 28.
2. The parts transfer device as claimed in claim 1, which is a registered utility model, wherein the other end of a swinging lever 31 having one end fixed to the rotating shaft 30 is connected with a pin. 3. The parts transfer device according to claim 1 or 2, wherein one cycle of caulking work is completed by one reciprocating movement of the lifting and lowering transmission member.