JPH0840425A - Cutter device for binding machine - Google Patents

Abstract

(57) [Summary] [Purpose] In a binding machine for binding the opening of a vinyl bag or the like, when the cutter device is not used, the cutter device can be retracted to improve workability and safety. [Structure] The cutter blade 11 and the drive link 12 of the cutter device 8 are housed in a cutter case 9, and the cutter case 9
Is attached to the side of the binding machine so that it can be lifted and lowered. The guide groove cover 14 is slidably attached to the cutter case 9.
The keyed pin 17 is attached to the cutter case 9, and the binding machine body is provided with a key hole 23 into which the keyed pin 17 can be inserted and locked at the position where the cutter device 8 is used. Guide groove cover 1
4 is slid backward to close the guide groove 13 and the pin 17 with the key and the key hole 23 are disengaged from each other, so that the cutter device 8
Becomes rotatable and can rotate to the upper standby position.
At this time, the keyed pin 17 protruding by the bias of the spring
The guide groove cover 14 is thereby fixed in the closed position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a binding machine for binding an opening portion of a bag, and more particularly to a cutter device for the binding machine for cutting an excessive portion of the bag.

[0002]

2. Description of the Related Art Conventionally, there has been known a binding machine for binding an opening of a plastic bag containing vegetables, bread and the like to fasten an adhesive tape. In addition, a binding machine that binds with a clip is also known. Some of the binding machines of this type are provided with a binding mechanism and a cutter device for cutting an excess portion at the tip of the bound bag. The cutter blade of the cutter device is installed side by side with the binding mechanism, and when the portion of the bag to be bound is inserted into the guide groove provided in the binding machine body, the binding mechanism tightens the clip or adhesive tape and The surplus portion is cut near the binding portion of the bag.

[0003]

In a conventional binding machine provided with a cutter device, a cutter device provided in parallel with the binding mechanism is interlocked during its operation. However, depending on the volume of what is accommodated in the bag, there is excess to be cut. There may be no part. In this case, the hand holding the opening portion of the bag approaches the cutter blade of the cutter device, which may cause injury and is dangerous.

Therefore, there arises a technical problem to be solved in order to prevent accidents during binding work and to improve safety, and the present invention aims to solve the above problems. And

[0005]

The present invention is proposed to solve the above-mentioned problems, and a guide groove for converging the opening portion of the bag and a clip or an adhesive tape are provided in the bag in the guide groove. In the binding machine, which is provided with a binding mechanism that is fastened to the converging portion of the bag and a cutter device that drives the cutter blade to reciprocate back and forth, and is capable of binding the bag and cutting the excess portion of the bag, the cutter The blade and the cutter blade drive link are housed in a cutter case, a guide groove is provided in the cutter blade portion of the cutter case so that the converged portion of the bag can be inserted, and the cutter case is pivotally attached to the side surface of the binding machine so that it can be lifted and lowered. A crank shaft of the machine body is arranged at the center of rotation of the cutter case, the crank shaft is connected to the drive link to form a cutter device, and a slidable plan is provided for the cutter case. A groove cover is provided so that the guide groove can be freely opened and closed, the keyed pin is loosely inserted into the side surface of the cutter case, and a spring is interposed so that the head of the keyed pin is projected outward. Fix the guide groove cover at the guide groove closed position at the protruding portion, and on the side surface of the binding machine body,
A key hole is provided in which the keyed pin can be inserted and locked at the rotational position where the cutter device should be used, and the keyed pin is engaged with the keyed hole so that the head of the pin is inside the cutter case. It is intended to provide a cutter device in a binding machine, which is formed so as to be buried so that the fixing of the guide groove cover can be released.

[0006]

The cutter device pivotally attached to the side surface of the binding machine body can be vertically rotated and can be jumped up to the upper standby position when not in use. The cutter blade of the cutter device is housed in the cutter case, and is reciprocally driven by the crank mechanism of the binding machine to cut the bag inserted into the guide groove of the cutter case. A pin with a key is attached to the cutter case, and a key hole into which the pin with a key can be inserted and locked at a position where the cutter device is used is provided in the binding machine body. The keyed pin is urged to project from the cutter case.When the guide groove cover is slid to block the guide groove and the cutter blade, the head of the keyed pin projects from the cutter case and opens the guide groove cover. A safety mechanism is configured to prevent sliding into position.

If the cutter device is rotated to the use position and the keyed pin is inserted and locked in the key hole of the binding machine, the cutter device is fixed and the keyed pin is buried in the cutter case and is guided into the guide groove. The cover can be slid, and the guide groove can be opened to use a cutter blade.

When the cutter device is rotated from the use position, the guide device is slidable by sliding the guide groove cover to shield the guide groove and releasing the engagement between the keyed pin and the key hole. The keyed pin secures the guide groove cover in the closed position.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. For convenience of description, first, the overall configuration of the binding machine will be described. FIG. 1 shows the binding machine 1. Although not shown, a clip feeding mechanism that descends from the upper part of the rear part (left in the figure) to the front part is arranged inside the binding part 1, and the clip part is provided in the front part. A clip fastening mechanism is arranged opposite to the feeding mechanism. Further, the outer casing 2 is provided with a guide groove 3 having an open upper surface between the clip feeding mechanism and the clip fastening mechanism,
The opening of the bag is formed so as to be converged by inserting the tip portion of the bag accommodating vegetables and the like into the guide groove 3.

As shown in FIG. 2, the clip 4 is a substantially gate-shaped resin flat plate, and the inner peripheral portion thereof has gear-like claw portions 5, 5, 5.
Is provided, and the tips of the legs are inverted to form hooks 6 and 6. Then, a large number of clips 4, 4, ... Are connected in series and wound in a roll shape, housed in a cartridge drum (not shown) and supplied.

The clip 4 is supplied to the clip feeding mechanism from the back surface of the binding machine 1 shown in FIG. 1, and is sequentially fed to the rotary arm of the clip fastening mechanism by the ratchet pawl of the clip feeding mechanism. Then, the leading clip 4 is cut from the clip in the next row by the cutter provided in the clip feeding mechanism, and the rotating arm of the clip fastening mechanism engages with the hook portions 6 and 6 of the leading clip 4 to hook. The portions 6 and 6 are twisted, and the pair of hook portions 6 and 6 are so-called hooked and fastened to the converged portion of the bag. The clip feeding mechanism and the clip fastening mechanism include a motor 7 and a gear mechanism (not shown).
Driven by, the feeding, cutting and fastening of the above-mentioned clip is controlled in sequence.

As shown in FIG. 1 (a), a cutter device 8 is mounted on the left side surface of the outer casing 2 of the binding machine 1, and a cutter case 9 of the cutter device 8 has a cylindrical shaft portion ( (Not shown) is fitted in a circular hole provided on the side surface of the outer casing 2 and is pivotally mounted so as to be vertically rotatable. A crank disk 10 of a cutter driving mechanism is arranged at the center of the circular hole.

A slide guide groove 9a for the cutter blade 11 is formed in the front and rear direction inside the cutter case 9, and the cutter blade 11 is loosely fitted in the slide guide groove 9a to allow the cutter blade 11 and the crank disk 10 to be inserted. The crank pin 10a is connected via a link 12. The crank disk 10, together with the clip feeding mechanism and the clip fastening mechanism, is driven by the motor 7 via the above-mentioned gear mechanism to reciprocate the cutter blade 11.

In the vicinity of the tip of the cutter case 9, guide grooves 13 penetrating both the left and right sides are provided from the upper surface to the upper and lower intermediate portions, and as shown in FIG. 1, when the cutter case 9 is tilted to the use position. The guide groove 3 of the main body of the binding machine 1 and the guide groove 13 of the cutter case 9 are substantially aligned with each other so that the binding portion of the bag can be hung over the two guide grooves 3, 13.

A guide groove cover 14 is externally fitted to the cutter case 9, and the guide groove cover 14 is slidable back and forth within a certain range. The guide groove cover 14 covers the upper surface, the left side surface and the bottom surface of the cutter case 9, and as shown in the figure, has an opening 14a for opening the guide groove 13 of the cutter case 9 in a state of being slid forward. Has been formed,
By sliding it backward, the guide groove 13 is closed and the cutter blade 11 is covered.

Further, as shown in FIG. 3A, pin holes 15 and 1 are provided near the tips of the left and right side plates of the cutter case 9.
6 is opened and the pin 17 with the key is inserted in the pin holes 15 and 16.
Is inserted. As shown in FIG. 4, the keyed pin 17 has a pin 19 having a key 18 formed at its tip,
As shown in FIG. 3, a large diameter pin head 20 is fixed, and the compression coil spring 21 mounted on the pin 19 is attached to the pin head 20.
Is pressed to urge the pin head 20 to project outward. Therefore, as shown in the figure, when the guide groove cover 14 is slid backward and the guide groove 13 is closed, the pin head 20 projects from the cutter case 9, and the guide groove cover 14 is slid forward when the guide groove cover 14 is slid forward. Since the front edge of 14 contacts the pin head 20, the guide groove cover 14 cannot be slid.

As shown in FIG. 5 (a), the outer casing 2 of the binding machine 1 has a key hole 2 into which a key case pin 17 can be inserted at two positions, a cutter case 9 and a use position and an upper standby position.
2, 23 are provided. The cutter case 9 is rotated to the use position shown in FIG. 1 or the standby position shown in FIG. 6, and the pin head 20 of the keyed pin 17 is rotated with a finger to move the key 18
By inserting the key 18 into the key holes 22 and 23 by making the rotational positions of the key hole 22 and the key hole 23 coincide with each other and then rotating the pin head 20, the keyed pin 17 is locked in the pushed state.

As shown in FIGS. 1 (b) and 6 (b), the key hole 23 in the use position and the key hole 22 in the upper standby position.
6 has a different depth, and as shown in FIG. 6, when the keyed pin 17 is engaged with the shallow key hole 22 at the upper standby position, the pin head 20 is slightly projected from the cutter case 9 and is locked. The groove cover 14 cannot be slid to the open position. On the other hand, as shown in FIG. 1, when the keyed pin 17 is engaged with the deep key hole 23 at the use position, the pin head 20 is buried and locked in the cutter case 9 and the guide groove cover 14 is moved to the open position. The guide groove 13 can be opened by sliding. Then, by moving the guide groove cover 14 to the open position, as shown in FIG.
The pin head 20 is covered by the guide groove cover 14. Therefore, when the cutter case 9 is rotated by releasing the engagement between the keyed pin 17 and the key hole 23 at the use position,
Unless the pin head 20 is exposed by sliding the guide groove cover 14 to the closed position, the keyed pin 17 cannot be unlocked.

When the lock of the keyed pin 17 is released after the guide groove cover 14 is moved to the closed position, the pin head 20 projects from the cutter case 9 and the guide groove cover 14 is fixed at the closed position as described above. Then, by rotating the cutter case 9 upward and engaging the keyed pin 17 with the key hole 22 at the standby position as shown in FIG. 6, the cutter case 9 is fixed at the standby position.

As described above, the guide groove cover 14 can be slid to the open position only when the cutter case 9 is rotated to the use position and the keyed pin 17 is locked in the key hole 23. When the cutter case 9 is not in the use position, the guide groove 13 is always closed, so that the injury accident when the cutter blade 11 is not used is prevented.

The present invention should not be limited to the above-mentioned embodiment, and for example, the shapes of the guide groove cover 14 and the keyed pin 17 can be variously modified, and the present invention is modified by them. It goes without saying that it extends to all things.

[0022]

As described in detail in the above-described embodiment, the present invention has the cutter device pivotably attached to the binding machine main body so that the cutter device can be lifted and lowered. It is possible to rotate to, and operability is improved. Further, when the cutter device is not in the used position, the cutter blade is covered by the guide groove cover, so that an unexpected accident at the time of binding work can be prevented and the safety can be improved.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, (a) is a side view of a binding machine, and (b) is a partially cutaway front view of the binding machine.

FIG. 2 is a front view of a clip.

FIG. 3 shows a cutter device, (a) is a partially cutaway plan view, and (b) is a front view.

FIG. 4 shows a pin with a key, (a) is a front view and (b) is a side view.

5 shows a state in which the cutter device of the binding machine shown in FIG. 1 is rotated to an intermediate position, (a) is a side view of the binding machine, and (b) is a side view of the binding machine.
FIG. 3 is a front view of the binding machine.

6 shows a state in which the cutter device of the binding machine shown in FIG. 1 is fixed to an upper standby position, (a) is a side view of the binding machine,
(B) is a partially cutaway front view of the binding machine.

[Explanation of symbols]

 1 Bundling machine 2 Outer casing 8 Cutter device 9 Cutter case 10 Crank disk 11 Cutter blade 12 Link 13 Guide groove 14 Guide groove cover 14a Opening 15, 16 pin hole 17 Keyed pin 18 Key 19 pin 20 Pin head 21 Compression coil spring 23 Key hole

Claims (1)

[Claims] 1. A guide groove for converging an opening portion of a bag, a binding mechanism for fastening a clip or an adhesive tape to a converging portion of the bag in the guide groove, and a cutter device for reciprocally driving a cutter blade back and forth. In a bundling machine that is equipped with a bag and is capable of binding a bag and cutting an excess portion of the bag, the cutter blade (11) and the cutter blade drive link (12) are housed in a cutter case (9). , The cutter case (9)
A guide groove (13) into which a bag converging portion can be inserted is provided in a cutter blade portion of the device, and the cutter case (9) is pivotally attached to a side surface of the binding machine (1) so as to be lifted up and down, and a crank shaft (10) of the binding machine body. ) Is arranged at the center of rotation of the cutter case (9), and the crankshaft (10) is connected to the drive link (1).
2) is connected to form a cutter device (8), and the cutter case (9) is provided with a slidable guide groove cover (14) so that the guide groove (13) can be opened and closed. 17) to the cutter case (9)
The head (20) of the keyed pin (17) is protruded to the outside through a spring (21), and the guide groove cover is provided at the protruding portion of the keyed pin (17). (1
A key hole (4) is fixed at the guide groove closed position, and the pin with key (17) can be inserted and locked on the side surface of the body of the binding machine (1) at the rotation position where the cutter device (8) should be used. 23) and by engaging the keyed pin (17) with the key hole (23), the pin head (2)
0) is formed so that it can be embedded in the cutter case (9) to release the fixing of the guide groove cover (14), and the cutter device in the binding machine.