JP4078772B2 - Feeding stop mechanism of feeding unit in bag binding machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a feed stop mechanism of a feed unit in a manual bag binding machine.
[0002]
[Prior art]
This type of bag binding machine moves the bag mouth of the bag to be bound to the binding part, then feeds a synthetic resin portal clip into the binding part, crosses the leg pieces on both sides of the clip, and then crosses the crossing part. One that binds the bag mouth by caulking is known. Recently, instead of the conventional system operated by an electric motor, a manual bag binding machine has been proposed that performs three operations of clip feeding, leg piece crossing, and caulking by manual handle operation. This is because the feed unit and the caulking unit are provided separately, the clip is held in the feed unit, the feed means that moves by operating the handle is provided, and the feed unit is moved in the first half of the movement of the feed means to move the clip. The leg pieces are crossed and the caulking unit is activated by the second half of the movement. When the handle is moved forward in one direction, the above three operations are sequentially performed, and when the handle is moved in the reverse direction, the reverse operation is performed to return to the initial position.
[0003]
[Problems to be solved by the invention]
By the way, the feeding unit needs to be stopped after crossing the leg pieces of the clip. However, the feed means of the feed unit must be moved further in order to operate the caulking unit.
[0004]
SUMMARY OF THE INVENTION It is an object of the present invention to provide a feed stop mechanism for a feed unit in a bag binding machine that can solve the above problems and can continue the movement of the feed means with a simple structure and simultaneously stop the feed unit. And
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the feed stopping mechanism of the feeding unit in the bag binding machine according to the present invention has a gate-shaped sandwiched between the binding portions provided at the front end of the guide passage for guiding the mouth of the bag. A feeding unit having crossing means for holding the binding clip and crossing the leg pieces of the clip so as to take in the mouth portion of the bag is provided, and the carrier on which the feeding unit is mounted is fed by the feeding means. A feed stopping mechanism of the feed unit in the bag binding machine that operates the crossing means during movement and stops the carrier feeding operation in the middle of the movement of the feeding means. A link that can be rotated so as to face the direction orthogonal to the direction and the direction inclined to the feeding side is arranged, and the tip of this link is orthogonal to the movement direction on the carrier. Engage with the long groove that is formed in the direction of travel, and spring-bias the link so that it faces in the direction of tilting toward the feed side.When the feed means moves, the link pushes the edge of the long groove to move the carrier and feed When the carrier stops at a predetermined position during the movement of the means, the link tip is rotated in a direction perpendicular to the moving direction of the feeding means while moving along the long groove against the spring. It is characterized by.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a side view showing an outline of a manual bag binding machine according to the present invention, and FIG. 2 is a plan view thereof. Reference numeral 1 denotes a base, 2 denotes a support, 3 denotes a binding machine body, and 4 denotes a handle. The base end of the handle 4 is supported by a rotating shaft 5 provided on the support column 2, a first link 6 is fixed to the rotating shaft 5, and the first link 6 is a link 7 connected in a Y shape. It is connected to. One end 8 of the bifurcated portion of the Y-shaped link 7 is fixed to the column 2, and the other end 9 is connected to the feeding means 10. Further, the handle 4 is always urged so as to be in an initial position indicated by a solid line in FIG. 1 by a torsion coil spring provided on the rotating shaft 5.
[0007]
The feeding means 10 includes a feeding plate 10a and a feeding bar 10b provided on one side thereof, and is provided in the binding machine body 3 so as to be movable back and forth within a certain range. A plate-like carrier 14 is disposed on the feed plate 10a so as to be movable in the front-rear direction within a certain range. A projecting piece 12 projecting outward is formed at the rear end of the carrier 14, and the carrier 14 has an initial position shown in FIG. 2 and a position where the projecting piece 12 engages with the rear end of the guide rail 13 (see FIG. 3). It is provided so that it can move forward and backward.
[0008]
As shown in detail in FIG. 4 (a), the feed means 10 includes a link that can be rotated around a support shaft 21 so as to face a direction orthogonal to the moving direction and a direction inclined to the feed side. 22, and a roller 22 a provided at the tip of the link 22 is engaged with a long groove 23 formed in the carrier 14. The long groove 23 is formed in a direction orthogonal to the moving direction of the carrier 14. The link 22 is urged by a spring 24 so as to face the direction of tilting toward the feed side. Thus, when the feeding means 10 moves, the link 22 pushes the edge 23a of the long groove 23 to move the carrier 14, and when the carrier 14 stops at a predetermined position, the link 22 resists the spring 24. It is configured to move in the direction perpendicular to the moving direction along the long groove 23 while rotating.
[0009]
Next, the feeding unit 11 is mounted on the carrier 14. The feed unit 11 includes a clip holding portion 11a, a crossing operating link support portion 11b, a rear end portion 11c, and an operating plate 18. As shown in FIG. 3, the holding portion 11a is formed so as to hold the leg piece 15 of the clip a at the head of the connection clip. An actuating link 17 is rotatably supported on the intersecting actuating link support portion 11b, and the actuating link 17 is connected to a pair of L-shaped links 20 pivotally attached to an actuating plate 18 to constitute a crossing means 16. ing. The actuating plate 18 is configured to interlock with the feeding means 10 at a different timing and at a different timing from the other members of the feeding unit 11. The pin at the tip of the operating link 17 is formed to engage with the engagement hole 36 (see FIG. 7) of the leg piece 15 of the clip a. The actuating plate 18 is configured to engage the feed means 10 and operate the L-shaped link 20 after the advancement of the feed unit 11 is stopped.
[0010]
As shown in FIG. 7, the manual bag binding machine uses a connecting clip in which a number of portal binding clips a are connected in a tape shape. However, in this embodiment, only a part thereof is shown.
[0011]
Further, a guide passage 31 for guiding the mouth M of the bag b is formed in the binding machine body 3, and a binding portion 25 is provided at the tip thereof.
[0012]
Next, a caulking unit 26 is provided on the opposite side of the feeding unit 11 across the bundling portion 25. The caulking unit 26 has a tip of the leg piece 15 of the clip a which is crossed by the roller 38 provided on the driver plate 27 shown in FIG. 3 of Japanese Patent Application No. 11-067452 being moved to the binding portion 25 side. The caulking mechanism is as shown in FIG. 6, but the explanation of the caulking mechanism is omitted here.
[0013]
By the way, the feeding means 10 is connected to a caulking mechanism 29 through an operation bar 28. That is, convex portions 30 a and 30 b are formed at both ends of the feed bar 10 b provided integrally with the side portion of the feed means 10. A gate-shaped actuating bar 28 that opens downward is provided on the side of the feed bar 10 b so as to be movable in parallel with the feed means 10. One leg 32 of the operating bar 28 is notched, and the front protrusion 30b of the feed bar 10b enters the notch 33 so as to be engageable. Further, the front end portion of the operation bar 28 and the driver plate 27 are connected by a link 34. A central portion of the link 34 is rotatably supported by a support shaft 35.
[0014]
Next, the operation mode of the bag binding machine having the above-described configuration will be described. As shown in FIG. 2, the mouth M of the bag b storing vegetables, bread and the like from the guide passage 31 of the binding machine main body 3 to the binding part 25. After the insertion, when the handle 4 is rotated in one direction to move the feed means 10, the link 22 provided on the feed means 10 pushes the edge of the long groove 23 of the carrier 14 to advance the feed unit 11. The clip a held by the tip holding portion 11a is fed into the bundling portion 25. When the carrier 14 moves by a certain range, the projecting piece 12 of the carrier 14 engages with the rear end portion of the guide rail 13 as shown in FIGS. 3 and 4B, so that the carrier 14 stops and the feeding unit 11 Also stop moving forward. If the handle 4 is further rotated, the feeding means 10 moves forward, and the operation plate 18 moves forward accordingly, so that the crossing means 16 is operated. That is, since the operation plate 18 pushes the L-shaped link 20 and operates the tip of the operation link 17 to approach each other, the pin of the operation link 17 intersects the leg piece 15 of the clip a. Both side protrusions 19 of the operation plate 18 engage with the engagement protrusions 37 of the guide rail 13 and do not advance any further.
[0015]
By the way, when the feeding means 10 continues to move despite the carrier 14 stopping moving as described above, the link 22 resists the spring 24 as shown in FIG. While moving along the long groove 23, it rotates in a direction perpendicular to the moving direction of the feeding means 10.
[0016]
Then, just before the operation for crossing the leg pieces 15 of the clip a as described above is performed, the rear end convex portion 30a of the feed bar 10b of the feed means 10 is engaged with the rear end of the leg portion 32 of the operation bar 28. Therefore, the operation bar 28 moves forward in conjunction with the forward movement of the feeding means 10. As a result, the link 34 swings about the support shaft 35 as shown in FIGS. 4 (c) and 5, so that the driver plate 27 of the caulking unit 26 is moved in the reverse direction, so that the caulking mechanism 29 operates. Then, the crossed leg pieces 15 are caulked, and the operation of the handle 4 is also stopped.
[0017]
When the handle 4 is rotated in the reverse direction after the caulking is completed, the feeding means 10 also moves backward, so that, contrary to the above, the operating plate 18 releases the crossing means 16 and further moves the feeding unit 11 to the binding portion 25. Then, it is retracted and returned to the original position as shown in FIG. On the way, the convex portion 30b at the front end of the feed bar 10b of the feed means 10 is engaged with the leg portion 32 of the actuating bar 28, so that the actuating bar 28 is actuated to release the caulking mechanism 29. As shown in FIG. 4A, the link 22 moves in the return direction along the long groove 23 of the carrier 14 by the spring 24 as the feeding means 10 moves backward, and returns to the initial position. What is necessary is just to discharge | emit the bag b after binding from the guide passage 31. FIG. FIG. 6 shows the bag b with the bag mouth M bound by the clip a. Reference numeral 39 denotes a caulking portion.
[0018]
As described above, basically, a simple structure including the link 22, the long groove 23, and the spring 24 makes it possible to continue the movement of the feeding means 10 and at the same time reliably stop the feeding of the feeding unit 11. Therefore, the cost can be kept low.
[Brief description of the drawings]
FIG. 1 is a side view showing an outline of a manual bag binding machine according to the present invention. FIG. 2 is a plan view showing an outline of the bag binding machine. FIG. [Fig. 4] (a), (b) and (c) are explanatory views of the operation mode of the feed stop mechanism of the feed unit according to the present invention. [Fig. 5] A plan view showing a state in which the caulking unit is actuated during forward movement. 6] Perspective view of the bag with the bag mouth bound together [FIG. 7] Perspective view of a part of the connecting clip [Explanation of symbols]
a Clip 4 Handle 10 Feed means 11 Feed unit 14 Carrier 22 Link 23 Long groove

Claims (1)

Hold the gate-shaped binding clip on one side of the bundling portion provided at the tip of the guide passage that guides the mouth of the bag so that the leg of this clip can be taken inside the bag's mouth. A feeding unit having a crossing means for crossing and moving the carrier mounted with the feeding unit in the feeding direction of the clip by the feeding means, operating the crossing means during the movement, and moving the carrier during the movement of the feeding means A feed stop mechanism of the feed unit in the bag binding machine that stops the feed operation,
The feeding means is provided with a rotatable link so as to face a direction perpendicular to the moving direction and a direction inclined to the feeding side, and the tip of the link is formed on the carrier in a direction perpendicular to the moving direction. The link is pushed by a spring so that the link is directed in the direction of tilting toward the feed side.When the feed means moves, the link pushes the edge of the long groove to move the carrier, and the feed means is moving. When the carrier stops at a predetermined position, the tip of the link is rotated in a direction orthogonal to the moving direction of the feeding means while moving along the long groove against the spring. Feed stop mechanism of the feed unit in the bag binding machine.

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