JPH05105223A - Staple feeder - Google Patents

Abstract

PURPOSE:To feed plural staple connected bodies smoothly by storing the staple connected bodies without increasing the size of the whole feeder. CONSTITUTION:This staple feeder 1 consists of a staple storage part 2 which is formed in a long and narrow shape and feeds plural staple connected bodies in the longitudinal direction with the staple connected bodies held in a line under an orthogonal condition to the longitudinal direction, and a stopper mechanism 3 which is installed on the end side in the feed direction of the staple connected bodies in the storage part and stops the movement of the connected bodies other than the staple connected bodies at the front end. There are provided the second cylinder device 17 which presses out the front end staple connected bodies in the longitudinal direction of the connected bodies from the storage part and places one connected body on a middle holding part, the third cylinder device 30 which is installed at the middle holding part and inverts the direction of the staple by pressing up the single leg of the staple, and the fourth cylinder device which feeds out the staple connected bodies fed from the middle holding part to an outlet.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a staple feeding apparatus which receives a plurality of staple connecting bodies of a constant length and sends the connecting bodies one by one to a staple driving machine or the like in a predetermined posture.

[0002]

2. Description of the Related Art A staple supplying device for accommodating a plurality of staple connecting bodies having a fixed length and feeding the continuous connecting bodies is used for supplying the staple connecting body to an automatic staple driving machine or the like. In general, this staple feeding device is made of an elongated chute in which a large number of staple connecting bodies are arranged in the longitudinal direction, and the staple connecting bodies are arranged one by one or in an appropriate number, and are arranged in a predetermined posture. Supplied to the staple driving machine.

[0003]

Although the conventional staple feeding apparatus is suitable for feeding to an automatic staple driving machine, it requires an elongated chute for arranging a large number of staple connecting bodies in the longitudinal direction, and the staple feeding apparatus is It's bulky. In addition, although it is bulky, there is a drawback that the number of staple connecting bodies accommodated is small.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a staple feeding device capable of accommodating a large number of staple connecting bodies and smoothly supplying the staple connecting bodies even if they are not enlarged.

[0005]

In order to achieve the above object, according to the present invention, a staple feeding device that receives a plurality of staple connecting bodies of a fixed length and feeds the connecting bodies one by one in a predetermined posture. The staple accommodating portion that feeds the staple connecting body in the longitudinal direction while holding a large number of staple connecting bodies arranged side by side in a state of being elongated and orthogonal to the longitudinal direction of the staple connecting body of the accommodating portion. A means provided on the front end side in the feeding direction to stop the movement of the continuous body other than the most advanced staple continuous body, and the most advanced staple continuous body pushed out from the accommodating portion in the longitudinal direction of the continuous body A push-out member that mounts one continuous body on the holding unit, a push-up member that is provided on the intermediate holding unit and pushes up one leg of the staple to reverse the direction of the staple, and is sent from the intermediate holding unit. Ste Staple applying apparatus characterized by comprising a means for feeding the pull connecting bodies to the outlet is provided.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows the entire staple feeding apparatus 1 according to the present invention, and FIGS. 2 and 3 show the central portion of the apparatus having a mechanism for feeding the staple feeding apparatus 1 in a predetermined posture one by one. It is shown.

The staple feeding apparatus 1 is provided with an accommodating portion 2 that receives a large number of staple connecting bodies and sends them out to the central portion of the apparatus. The accommodating portion 2 is formed as an elongated chute, is inclined so as to descend toward the central portion, and the staple connecting body that has been received is sent by gravity toward the central portion at the tip. The width of the accommodating portion 2 is set such that the staple connecting body can be placed in a state of being orthogonal to the longitudinal direction, and a large number of staple connecting bodies are arranged and held in a state of being orthogonal to the longitudinal direction. Therefore, the accommodating portion 2 can accommodate a larger number of staple connecting bodies than the conventional staple feeding device. Further, in the staple feeding device according to the present invention, as will be described later, it is possible to accommodate an assembly in which two staple connecting bodies having U-shaped side surfaces are opposed to each other to form a rectangular parallelepiped shape, and more staple connecting devices are accommodated. Can accommodate the structure. In addition, the accommodated staple continuous body is fed by gravity toward the leading end in the accommodating portion 2.

A stopper mechanism 3 is provided on the leading end side of the staple connecting body of the accommodating portion 2 in the feeding direction, that is, on the left side of FIG. This stopper mechanism is also shown in FIG. 4, so refer to it. The stopper mechanism 3 is pivotally supported by a shaft 4 and partitions a leading-edge staple connecting body 5 and other connecting bodies 6, 7, 8, ..., And an end of the stopper member 9. And a cylinder device 11 for pivotally moving the stopper member 9 by expansion and contraction of the piston rod 10. An upper portion of the cylinder device 11 is pivotally supported by a shaft 12, and when actuated to extend the piston, the stopper member 9 is pivoted clockwise around the pivot shaft 4, and the cylinder device 11 itself is also pivotally supported. Pivot counterclockwise around 12.

The stopper member 9 has a stationary state as shown in FIG.
Claws 13 are provided for stopping all the connected bodies other than the most advanced staple connected body 5. The stopper member 9 has a member 14 that engages with the staple connecting body on the rear side of the claw.
Is provided. For example, when the piston 10 extends and pivots the stopper member 9 in the clockwise direction, the pawl 13 rises to release its stopping action, and the stopped staple connecting body 6 is fed forward. During this feeding, the engaging member 14
Engages with the connecting body 7 at the rear of the connecting body 6 and acts to prevent the movement thereof. When the urging of the stopper mechanism 3 is released, the engaging member 14 separates from the continuous body 7 and the continuous body 7
Slides downward, but the pawl 13 lowers again to stop the traveling. Therefore, even if the stopping action of the claw 13 is released, the continuous body 6 and the subsequent ones are stopped only by moving the continuous body 6, and the staple continuous body is separated from the leading one. To be done. The most advanced staple connecting body 5 is stopped by a stop wall body 15. The assembly shown in FIG. 4 is an assembly in which two staple connecting bodies having U-shaped side surfaces are opposed to each other to have a rectangular parallelepiped shape.

The most advanced staple connecting body separated by the stopper mechanism 3 is pushed out from the accommodating portion 2 in the longitudinal direction of the connecting body and placed on the intermediate holding portion. This state will be described mainly with reference to FIG. Stop wall 1 of FIG.
The most advanced staple connecting body 5 stopped at 5 is the piston rod 1 of the second cylinder device 17 as the pushing member.
8 from the accommodation portion 2 to the adjacent intermediate holding portion 19,
The staples are extruded in the longitudinal direction. This intermediate holding portion 19
Is formed so that one staple connecting body is placed.

The second cylinder device 17 as a push-out member of the staple connecting body has a structure in which two staple connecting bodies are opposed to each other to form a rectangular parallelepiped shape. It is separated and sent to the intermediate holding unit 19. This state will be described with reference to FIGS. The tip 20 of the piston rod 18 of the second cylinder device 17 is an upright U-shaped staple connecting body in the assembly of the two staple connecting bodies 22 and 23 as shown by the hatched line in FIG. That is, it is formed in such a size that only the lower staple connecting body 22 is extruded. Therefore, the pushing force is applied to the lower staple connecting body 22, but the pushing force is not applied to the inverted U-shaped staple connecting body, that is, the upper staple connecting body 23. Therefore, only the lower staple connecting body 22 is applied. It is extruded to the intermediate holding portion 19.

However, since the inverted U-shaped staple connecting body, that is, the upper staple connecting body 23 is in contact with the upright U-shaped staple connecting body, that is, the lower staple connecting body 22 at the leg portion, the staple connecting body is caused by friction. There is a fear of being extruded together with the installation body 22. Therefore, although the lower staple connecting body 22 is allowed to pass between the accommodating portion 2 and the intermediate holding portion 19, the lower staple connecting body 22 is engaged with the raised flat portion 24 of the staple connecting body 23 and the upper staples 23 are engaged. A gate for stopping the extrusion of the continuous body 23 is provided at a position indicated by reference numeral 25 in FIG. However, when the gate is formed of a simple plate, its size is fixed, and therefore, the allowable range of the size of the staple connecting body and the size occupied when the staple connecting body 22 is moved are determined by the size. It must be made in advance including the allowable range, and even then, there is a danger that the gate will be blocked. Therefore, as shown in FIG. 6, if the gate is made of the leaf spring 26 and its supporting member 27, a force for stopping the extrusion is given to the upper staple connecting body 23, and together with the lower staple connecting body 22, It will not be extruded. Further, as shown in FIG. 7, the upper staple connecting body 23 can be stopped by using the piston rod 29 of the small pen cylinder device 28 as a gate. In this case, only when the upper staple connecting body 23 is present,
The piston rod 29 may be operated.

When the lower staple connecting body 22 is pushed out while the upper staple connecting body 23 is stopped by the piston rod tip 20, the lower staple connecting body 22 is sent to the intermediate holding portion 19 as it is. And sent from there to the exit side. The second cylinder device 17 sends the lower staple connecting body 22 to the intermediate holding unit 19 and then operates again, and as shown in FIG. 5B, the lower staple connecting body 22 disappears. The upper staple connecting body 23, which is entirely lowered, is engaged and pushed out. In this extrusion,
As shown in FIG. 5C, when the upper staple connecting body 23 is slightly shifted to the right as it is pushed, the area of engagement of the piston rod tip 20 with the connecting body is increased, and the pushing is ensured. Therefore, it is preferable.

The intermediate holding portion 19 not only mounts the staple connecting body on the surface thereof, but also connects it to the third cylinder device 30 as a push-up member that pushes up one leg of the staple to reverse the direction of the staple. Therefore, it can be moved in the vertical direction of FIG. 1 or FIG. This third
The cylinder device 30 normally positions its piston at the bottom dead center so that the height of the intermediate holding portion 19 is continuous with the bottom surface of the gate 25 and receives the staple connecting body extruded by the piston 18 of the second cylinder device 17. It has become.
When the staple connecting body is placed on the intermediate holding portion 19, the outlet portion 31 provided adjacent to the lower position is provided.
In order to feed the staple connecting body, the cylinder device 30 pushes up the piston to the top dead center to push up the intermediate holding portion 19, and sends out the staple connecting body located there to the outlet portion 31 by gravity.

This point will be described with reference to FIGS. 8 and 9. The intermediate holding unit 19 once stops and reliably receives the staple connecting body 22 (that is, the upright U-shaped staple connecting body) sent through the gate 25, and the direction thereof is 90 °. It will be changed and sent. In this way, since the staple connecting body 22 is temporarily stopped and held by the intermediate holding portion 19, the height of the passage 32 to the outlet portion 31 is
It is formed slightly higher than the normal height position of the intermediate holding portion 19 to form a stop wall 33 to the outlet portion 31. This state is shown in FIG. Staple connection unit 2
8 is temporarily stopped by the intermediate holding unit 19, the third cylinder device 30 operates, and the intermediate holding unit 19 moves to the intermediate holding unit 19 of FIG.
The staple connecting body 22 is pushed up as shown in FIG. When the staple connecting body 22 passes over the stop wall 33, the staple connecting body 22 slides through the passage 32 and is sent to the outlet portion 31 due to its gravity. The intermediate holding portion 19 is pushed up to the position of the imaginary line shown in FIG. 8B, but the staple connecting body 22 slides from the middle thereof. The above is the procedure for feeding the upright U-shaped staple connecting body, that is, the lower staple connecting body 22 to the outlet portion 31.

As described above, the intermediate holding portion 19 not only places the staple connecting body on the surface thereof by the third cylinder device 30, but also pushes up one leg of the staple to reverse the direction of the staple. .. As a result, the inverted U-shaped staple connecting body, that is, the upper staple connecting body 23
Are sent to the outlet portion 31 in the same posture as the upright U-shaped staple connecting body, that is, the lower staple connecting body 22. This state is shown in FIG. In FIG. 9, the upper staple connecting body 23 is sent to the intermediate holding unit 19 in an inverted U shape. The intermediate holding portion 19 is located with a gap slightly larger than the one leg of the staple connecting body between the intermediate holding portion 19 and the stop wall 33, and the one leg is not held by the intermediate holding portion 19. As shown in FIG. 9A, the staple connecting body 23
Is temporarily stopped by the intermediate holding unit 19. After this, the third
When the cylinder device 30 operates and the intermediate holding portion 19 is pushed up as shown in FIG. 9B, the other one leg of the staple is pushed up to start tilting the staple connecting body 23, and When the piston of the cylinder device 30 reaches the top dead center, the intermediate holding portion 19 rises to the position of the imaginary line,
The staple connecting body 23 is inverted from the inverted U-shaped state to the upright U-shaped state. After this reversal, the staple connecting body 22 is slid through the passage 32 and sent to the outlet portion 31 by its gravity.

As described above, the staple connecting bodies are sent to the outlet portion 31 one by one in the same posture (upright U-shape in this example). The outlet section 31 is provided with a fourth cylinder device 36 as a means for pushing the sent staple connecting body to an output section 35 capable of sending it to a staple driving machine or the like. As shown in FIG. 2, the piston rod 37 of the fourth cylinder device 36 pushes the staple connecting body sent to the outlet portion 31 to the output portion 35. The staple connected body thus extruded is fed as it is to a staple driving machine or the like.

[0018]

According to the staple feeding apparatus of the present invention,
While holding a large number of staple connecting bodies arranged side by side in a state orthogonal to the longitudinal direction, the movement of the long and narrow staple accommodating section that feeds the staple connecting body in the longitudinal direction and the connecting bodies other than the most advanced staple connecting body are stopped. Means, an extruding member that pushes out the most advanced staple connecting body from the accommodating portion in the longitudinal direction of the connecting body and places one connecting body on the intermediate holding portion, and the pushing member provided on the intermediate holding portion. It consists of a push-up member that pushes up one leg to reverse the direction of the staples, and a means that sends out the staple connecting body sent from the intermediate holding section to the outlet, so that a large number of staples can be installed even if the supply device is not enlarged. Can accommodate the body. In particular, according to the present invention, since the assembly in which two staple connecting bodies having U-shaped side faces are opposed to each other to have a rectangular parallelepiped shape can be stored as it is, the staple connecting body of the feeding device has a high storage efficiency. ..

[Brief description of drawings]

FIG. 1 is a front view of a staple feeding device according to the present invention.

FIG. 2 is a view seen from the direction of arrow A in FIG.

FIG. 3 is a diagram viewed from the direction of arrow B in FIG.

FIG. 4 is a front view showing details of a stopper mechanism.

FIG. 5 is a diagram showing a state in which a staple connecting body is sent to an intermediate holding unit.

FIG. 6 is a diagram illustrating an example of a gate that feeds a staple connecting body to an intermediate holding unit.

FIG. 7 is a diagram showing another example of a gate that feeds a staple connecting body to an intermediate holding unit.

FIG. 8 is a view showing a state in which a staple connecting body having an upright U-shaped side face is fed from an intermediate holding portion to an outlet portion.

FIG. 9 is a view showing a state in which a staple connecting body having an inverted U-shaped side face is fed from an intermediate holding portion to an outlet portion.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Staple supply device 2 Staple accommodating part 3 Stopper mechanism 4 Pivot shaft 5 Cutting edge staple connecting body 6, 7, 8 Other staple connecting body 9 Stopper member 10 Piston rod 11 Cylinder device 12 Pivot shaft 13 Claw 14 Engaging member 17 Second cylinder device 19 Intermediate holding portion 22 Lower staple connecting body (upright U-shaped staple connecting body) 23 Upper staple connecting body (inverted U-shaped staple connecting body) 25 Gate 26 Plate Spring 28 Pen cylinder device 30 Third cylinder device 31 Outlet part 32 Passage 35 Output part 36 Fourth cylinder device

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location B65G 47/88 A 8010-3F

Claims (2)

[Claims] 1. A staple feeding device for accommodating a plurality of staple connecting bodies having a constant length and feeding the connecting bodies one by one in a predetermined posture to a staple driving machine or the like, which is elongated and formed in a longitudinal direction thereof. A staple accommodating portion that feeds the staple connecting body in the longitudinal direction while holding a large number of staple connecting bodies arranged side by side in a state of being orthogonal to each other, and a most advanced staple provided on the leading end side of the staple connecting body of the accommodating portion in the feeding direction A means for stopping the movement of a continuous body other than the continuous body; and pushing out the leading-edge staple continuous body from the accommodating portion in the longitudinal direction of the continuous body so that one continuous body is mounted on the intermediate holding portion. A push-out member to be placed, a push-up member that is provided in the intermediate holding unit and pushes up one leg of the staple to reverse the direction of the staple, and a staple connecting body sent from the intermediate holding unit to the outlet. Staple applying apparatus characterized by comprising a means for issuing Ri. 2. The staple feeding apparatus according to claim 1, wherein a large number of assemblies each having a rectangular parallelepiped shape in which two staple connecting bodies having U-shaped side surfaces are opposed to each other are accommodated side by side in the accommodating portion. The extruding member first pushes only the upright U-shaped staple connecting body to the intermediate holding portion and sends the staple connecting body from the intermediate holding portion to the outlet.
Next, an inverted U-shaped staple is pushed out to the intermediate holding portion, and the pushing member of the intermediate holding portion reverses the inverted U-shaped staple to an upright U-shaped staple and sends it from the intermediate holding portion to the outlet. Staple feeding device.