JPS6013764Y2 - Tape tension device for vegetable binding machine - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a pull-out adhesive tape tensioning device in a vegetable binding machine for binding vegetables with adhesive tape.

In the present invention, as shown in FIGS. 1 and 2, a roll-up adhesive tape 50 (with the adhesive surface on the inner surface Pull out the adhesive tape 50
A is pulled out through the guide roller 8 of the tape tensioning arm 5 pivotally connected to the first shaft bearing plate, the guide rollers 22 and 23 of the cutting operation frame 12, and the guide crossbar 24, and the end of the adhesive tape is tied to the binding mechanism 30.
The cutting operation frame 12 is supported by the clamping pieces 36 and 37 of
While applying the object to be bound 60 to the pull-out adhesive tape 50a in the direction of arrow P in FIG. First, the objects to be bound 6 are tied with the pull-out adhesive tape 50a.
After binding 0, the cutting operation frame 12 is further lowered to cut the drawer adhesive tape.

On the other hand, the tape tensioning arm 5 continues to rotate rearward (to the left in FIG. 1) in conjunction with the lowering of the cutting operation frame 12, and the tape tensioning arm 5 continues to rotate rearward (left side in FIG. A moderate tension state is maintained between the object 60 and the object 60 is then cut by the cutting blade 21 at the tip of the cutting operation frame 12.

Therefore, the following conditions are required to maintain the pull-out adhesive tape 50a in an appropriate tension state in the above-mentioned portion.

First, it is necessary to rotate the tape tensioning arm backwards to a degree sufficient to sufficiently absorb the slack in the pull-out adhesive tape that occurs when the cutting operation frame 12 descends from the raised state to bind the objects to be bound. Rotating backward more than necessary and applying unnecessary tension to the tape may cause problems such as cutting of the pull-out adhesive tape.

Second, when the tape tensioning arm 5 rotates backward, the take-up adhesive tape 50 fitted on the take-up adhesive tape support plate 4 must be temporarily secured so that it will not be further unwound, and the pull-out adhesive There shall be no damage to the tacking portion of the tape due to the tacking.

That is, if the rolled up adhesive tape 50 is pulled out at the above-mentioned point, there is no tension on the pulled-out adhesive tape, and damage to the pulled-out adhesive tape due to the temporary fixing is due to the backward rotation of the tape tensioning arm described above. This is because it directly causes the tape to tear, break, or break when the tape is tensioned.

Thirdly, the object to be bound 60 is bound by the drawer adhesive tape 50a while the drawer adhesive tape maintains the above-described tension state,
After that, the cutting operation frame 12 is further lowered without changing the tension of the drawer adhesive tape 50a.
It shall be equipped with a mechanism that allows cutting.

Due to the existence of the first to third conditions described above, the objects to be bound can be bound and the tape can be cut smoothly and beautifully.

The object of the present invention is to provide a tape tensioning device for a vegetable tying machine that can satisfy the first to third conditions mentioned above and has a simple structure. The gist of the invention is that a first shaft support plate is formed by pivotally connecting a support part for a wound adhesive tape and a tape tensioning arm, and a first shaft bearing plate is located in a pull-out path for the wound adhesive tape and is normally in a raised state. a second bearing plate pivotally connected to the base of the cutting operation frame which is retracted; and a second bearing plate located in front of the second bearing plate for binding the adhesive tape sent out from the cutting operation frame to objects to be bound. In a vegetable binding machine in which a binding mechanism is installed in series on a base plate, a drawer adhesive tape temporary fixing plate is formed on the upper part of the first shaft bearing plate, a guide roller is attached to the upper part of the waist tape tensioning arm, and the guide roller is attached to the upper part of the waist tape tensioning arm. In addition to determining the mounting position of the guide roller so that it can pass through the upper part of the pull-out adhesive tape temporary holding plate, a connecting rod is provided to link the operation of the cutting operation frame with the tape tensioning arm, and the connecting rod is The support on the cutting operation frame side is in the form of a long hole, a pin fixed to the cutting operation frame is loosely fitted into the long hole, and the pin and the connecting rod are connected by a compression spring. A stopper is provided to stop the operation of the tape tensioning arm just before the tape bound together is cut. A tape tensioning device for a vegetable tying machine, characterized in that the tape tensioning device is configured such that the tape tensioning device is positioned in the same position.

The present invention will be described below with reference to the embodiments shown in the drawings.

In FIGS. 1 and 2, reference numeral 1 designates a base plate, and 2 represents a leg, and the first shaft bearing plate 3 is fixed in an upright position on the left side of the base plate.

A winding adhesive tape support part 4 is pivotally mounted on the back side of the first shaft bearing plate 3, and a tape tensioning arm 5 is pivotally mounted on the front side coaxially with the above.

Similarly, the winding adhesive tape support portion 4 and the tape tensioning arm 5 may be pivotally connected to the first shaft support plate 3 using separate shafts.

In the illustrated embodiment, a friction plate 7 is pivotally mounted on the outer surface of the tape tensioning arm 5 coaxially with the pivot 6 of the tape tensioning arm 5, and is pressed against the tape tensioning arm 5 side by a spring 8'. The tape tensioning arm 5 is configured to move together with the friction plate due to frictional resistance.

The upper part of the first bearing plate 3 is bent at right angles to the back side to form a pull-out adhesive tape temporary fixing plate 3a.

The upper edge of the tape tensioning arm 5 is located above the upper surface of the drawer adhesive tape temporary fixing plate 3a, and the guide roller 8 vertically protruding from above the tape tensioning arm 5 toward the back side is used to tension the tape. When the arm 5 rotates about the pivot 6, it is attached to a position that allows it to pass above the pull-out adhesive tape temporary fixing plate 3a in the horizontal direction as shown in FIG.

A stopper 9 is attached to the friction plate 7 and/or the tape tension arm 5 so that when the friction plate 5 and/or the tape tension arm 5 is rotated to the left by a certain angle, it is stopped by being stopped by the edge of the first bearing plate 3. It is configured.

In FIGS. 1 and 2 of the drawings, the second shaft bearing plate 11 is fixed upright on the right side of the first shaft bearing plate 3, that is, on the base plate 1 of the adhesive tape extraction route, and the second shaft bearing plate 11 has a bent shape. The base 12a of the cutting operation frame 12 is pivotally attached.

A horizontal rod 13 is provided near the base of the cutting operation frame 12, one end of a compression coil spring 15 is fixed to the horizontal rod 13, and the other end is fixed to a spring fixing part 14 provided at the lower part of the first shaft bearing plate 3. As a result, the tip of the cutting operation frame 12 is elastically pulled so that it is always in a raised state.

One end of a connecting rod 16 is pivotally attached to the lower part of the friction plate 7 which is pivotally supported on the first shaft bearing plate 3, and the other end of the connecting rod 16 is formed with a long hole 17, and the base of the cutting operation frame 12 is formed. A pin 18 provided on the upper side of the cutting operation frame 12a is loosely fitted into the elongated hole 17, and the other end of a compression coil spring 19 whose one end is fixed to the continuous rod 16 is fixed to the pin 18. Figure 1 solid line and 3rd line
As shown in the figure, the pin 18 is placed at the left end of the elongated hole 17, and the tape tensioning arm 5, which operates together with the friction plate 7 to which one end of the connecting rod 18 is pivoted, rotates so that its upper part is It is located inclined toward the cutting operation frame 12 side.

At the tip of the cutting operation frame 12, there is an adhesive tape pushing piece 20 inward.
is fixed, and a cutting blade 20 is fixed parallel to and spaced apart from the pushing piece 20.

25 is an operating handle.

Reference numerals 22 and 23 denote idle rollers provided on the inner upper side of the cutting operation frame 12, and 24 denotes guide rods provided on the outer side closer to the tip edge of the cutting operation frame 12.

A binding mechanism 30 is provided on the right side of the second bearing plate 11, that is, at a position corresponding to the tip when the cutting operation frame 12 is lowered.

As shown in FIGS. 1, 2, and 5 to 7, the binding mechanism 30 includes a tape guide frame plate 32 on a binding mechanism frame wall 31.
A tape receiving plate 33 is erected in the binding mechanism frame wall 31 provided with a tape receiving plate 33 in parallel with the guide frame plate 32 and with a gap in which the adhesive tape pushing piece 20 intervenes. The support plate 34, which is supported and fixed to the binding mechanism frame wall 31, has a U-shaped cross section, and a shaft 35 passing through the U-shaped sleeve pieces 34a, 34b is provided at the lower part of the clamping piece 36. Support pieces 36a and 36b are pivotally mounted.

In addition, the other clamping pieces 37 are bent into a U-shape, and the left and right side pieces 3
7a and 37b are pivotally connected to the binding mechanism frame wall 31 by a shaft 38, and another shaft 39 is passed between the left and right side pieces 37a and 37b, and the fixed shaft 40 and the above-mentioned shaft 39 are connected to the binding mechanism frame wall 31.
A compression coil spring 41 is installed between.

The pinching piece 36 is sandwiched between the front piece 37c of the pinching piece 37 and the shaft 39, and projects obliquely rearward and upward.

Thus, the shaft 39 and the clamping piece 36 are always in contact with each other.

As will be described later, when the upper part of the clamping piece 36 is pushed by the guide rod 24 at the tip of the cutting operation frame 12, the clamping piece 36 opens around the shaft 35, and as the clamping piece 36 pushes down the shaft 39, other clamping parts are opened. The pressure piece 37 also expands and opens under the compression force of the compression coil spring 41.

42 is a case of the binding mechanism, and 43 is a table for placing objects to be bound.

Regarding the above configuration, the operating situation of the present invention will be explained as follows.

As shown in FIGS. 1 and 2, the rolled up adhesive tape 40 is fitted into the rolled up adhesive tape support portion 4 provided on the first bearing plate 3.

Pull out the end of the winding adhesive tape 50, pull out the adhesive tape 50a above the guide roller 8 of the tape tensioning arm 5 so that its adhesive surface and the opposite surface are in contact with the guide rollers 22 and 23 of the cutting operation frame 12. By pushing down the clamping piece 36 of the bundling mechanism 30 through the upper part of the guide bar 24, the clamping pieces 36 and 37 are opened, and the drawer adhesive tape 40a is opened.
Glue the adhesive surface of the end of the clamping piece 36 to the upper surface of the clamping piece 36, and
6 is released, the compression force of the compression coil spring 41 causes the clamping piece 37 to clamp the end of the pull-out adhesive tape between the aftertaste clamping pieces 36 and 37 in its original position.

Objects to be bound 60 such as vegetables from the direction of arrow P in FIGS. 1 and 5
is pressed against the pull-out adhesive tape 50a and placed on the object mounting table 43.

The winding adhesive tape support part 4 rotates, and the winding adhesive tape 50
The object to be bound 60 is pulled out by the length until it reaches the above-mentioned placement table 43.

At that time, the tip position of the tape tensioning arm 5, the position of the friction plate 7,
The pivot position of the connecting rod 16 with respect to the friction plate 7, the position of the pin 18 in the elongated hole 17 of the connecting rod 16, and the position of the cutting operation frame 12 are as shown in FIG.

When the operating handle 25 is grasped and the cutting operating frame 12 is pushed down, the friction plate 7 is moved in the direction indicated by the arrow m in FIG.
The lower end of the tape tensioning arm 5, which moves in conjunction with the frictional resistance with the friction plate 7, also rotates in the n direction in FIG. Rotate it to the left as shown in .

When the guide roller 8 of the tape tensioning arm 5 is rotated to the left side, the guide roller 8 of the tape tensioning arm 5 is moved to the fourth position with the adhesive tape 50a hooked thereon.
When moving in the direction of arrow 0 in the figure and passing over the drawer adhesive tape temporary fixing plate 3a of the first shaft bearing plate 3, the adhesive surface of the drawer adhesive tape 50a is attached to the drawer adhesive tape temporary fixing plate 3a of the first shaft bearing plate 3. Temporarily adhere and pass through.

The above-mentioned temporary fixing in the present invention uses the adhesive surface of the drawer adhesive tape 50a to adhesively temporarily fix the drawer adhesive tape 50a to the drawer adhesive tape temporary fixing plate 3a, and is like temporary fixing of the drawer adhesive tape 50a using pressure. No pressure damage to parts.

The tape tensioning arm 5 is further rotated to the left, and as shown in FIG. 5
0a wraps the object to be bound 60 in a loop shape, and the stopper 9 provided on the friction plate 7 is activated at the moment when the adhesive surfaces of the pull-out adhesive tape 50a adhere to each other, or immediately after that (that is, just before the pull-out adhesive tape is cut). As shown in FIG. 4, the friction plate 7 is engaged with the right end surface of the first bearing plate 3 to stop the rotation of the friction plate 7.

The tape tensioning arm 5 cooperating with the friction plate 7 stops at the position shown in FIG.

The pull-out adhesive tape 50a holds the objects 60 to be bound tightly together with appropriate tension between the clamping pieces 36, 37 of the binding mechanism 30 and the tape temporary fixing plate 3a between the objects 60 of the first bearing plate 3. It is stretched while maintaining its condition (without causing problems such as cutting of the pull-out tape by applying strong tension).

At this time, the position of the pin 18 loosely fitted into the long hole 17 of the connecting rod 16 in the cutting operation frame 12 is located in the middle of the long hole 17, as shown in FIG.

When the tip of the cutting operation frame 12 is further pushed down, the pin 18 moves in the direction of contacting the outermost end of the elongated hole 17, as shown by the chain line in FIG. 1, and the cutting operation frame 12 can be pushed down. , only the cutting operation frame 12 is pushed down with the tape tensioning arm 5 in the same position as shown in FIG. The pull-out adhesive tape 50a is lowered between the tape support plate 33 and wrapped around the object 60.
At the same time, the inner adhesive surface of the adhesive tape is adhered, and the adhesive tape is tensed between the object to be bound 60 and the clamping pieces 36 and 37 by pushing down that part, and then or at the same time, the cutting blade 20 descends and pulls out the adhesive tape 50a. After cutting, the state shown in FIG. 7 and the chain line in FIG. 1 is obtained.

When the pressing down of the operating handle 25 is released, the cutting operating frame 12 rises due to the compression force of the compression coil spring 15 and returns to the previous position, and the above-mentioned operation of the cutting operating frame 12 is transmitted to the friction plate 7 by the connecting rod 16. The friction plate also rotates to its previous position, the tape tensioning arm 5 that moves together with the friction plate 7 also returns to its previous position, and the adhesive tape 5 is pulled out.
The adhesion between Oa and the pull-out adhesive tape temporary fixing plate 3a is peeled off, resulting in the state shown by the solid line in FIG. 1 and in FIG. 3.

The above is an explanation of the embodiment shown in FIGS.
The friction plate 7 is crimped to the outside of the tensioning arm 5, the tape tensioning arm 5 is moved together with the friction plate 7, and the cutting operation frame 1 is attached to the friction plate 7.
Although an embodiment has been shown in which one end of the connecting rod 16 is pivotally connected to the connecting rod 2, the friction plate 7 is not necessarily required.
One end of the connecting rod 16 may be pivotally attached to the lower part of the tape tensioning arm 5.

In this case, the stopper 9 is attached to the tape tensioning arm 5.

Further, the attachment portion of the stopper 9 may be attached not only to the friction plate 7 or the tape tensioning arm 5 but also to the first bearing plate 3.

As described above, the present invention allows the cutting operation frame to be
It sufficiently absorbs the slack of the pull-out adhesive tape as it descends to bind the objects to be bound, and after the pull-out adhesive tape binds the objects to be bound, the roll-up adhesive tape is fully absorbed until the cutting blade cuts the binding adhesive tape. Temporarily fasten the drawer adhesive tape to prevent it from being fed out, and apply appropriate tension to the drawer adhesive tape from the binding part to the drawer adhesive tape temporary stop plate, without damaging the drawer adhesive tape due to the temporary fastening part. Therefore, the above-mentioned moderate tension prevents the drawer adhesive tape from tearing and breaking, and then without changing the above-mentioned moderate tension state at all,
After binding the objects to be bound, the cutting operation frame further lowers and the cutting blade at the tip of the frame cuts the bound adhesive tape before the adhesive part without causing tension breakage due to excessive tension on the pulled-out adhesive tape. This has the effect of making it possible to obtain a tape tensioning device in a vegetable tying machine with a simple structure.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view of a vegetable binding machine equipped with the tape tensioning device of the present invention, Fig. 2 is a plan view of Fig. 1,
Figures 3 and 4 are front views of the main parts showing the operational status of the tape tensioning device of the present invention, and Figures 5 to 7 are cutting operation frames and binding according to the operational status of the tape tensioning device of the present invention. FIG. 3 is a diagram showing the relationship with the mechanism. 1... Base plate, 3... First shaft bearing plate, 3a
... Adhesive tape temporary fixing plate, 4 ... Adhesive tape support part, 5 ... Tape tension arm, 6 ...
...Pivot, 7...Friction plate, 8'...Spring, 8...Guide roller, 9...
・Stopper 11...Second shaft bearing plate, 12...
... Cutting operation frame, 13 ... Horizontal rod, 14 ...
... Spring fixing part, 15 ... Compression coil spring, 16 ... Connection rod, 17 ...
・Long hole, 18... Pin, 19... Compression coil spring, 20... Adhesive tape push piece,
21... Cutting blade, 22. 23... Guide roller, 24... Guide horizontal rod, 30...
・Binding mechanism, 50... Winding adhesive tape, 50a
...Drawer adhesive dezo, 60...Object to be bound.

Claims (1)

[Scope of utility model registration request] A first shaft support plate formed by pivotally connecting a support portion for a winding adhesive tape and a tape tensioning arm, and a base of a cutting operation frame which is located in the pull-out path of the winding adhesive tape and which is normally pulled upwardly. A second shaft bearing plate which is pivotally connected, and a binding mechanism located in front of the second shaft bearing plate for binding the adhesive tape sent out from the cutting operation frame to an object to be bound are connected in series on a base plate. In the vegetable binding machine, a drawer adhesive tape temporary fixing plate is formed on the upper part of the first shaft bearing plate, a guide roller is attached to the upper part of the tape tensioning arm, and the guide roller secures the upper part of the drawer adhesive tape temporary fixing plate. In addition to determining the installation position of the guide roller so that it can pass through, a connecting rod is provided to link the operation of the cutting operation frame to the tape tensioning arm, and the support on the cutting operation frame side of the connecting rod is a long hole. A pin fixed to the cutting operation frame is loosely fitted into the elongated hole, and the pin and the connecting rod are connected by a compression spring, and the object to be bound is bound.
Immediately before the tape is cut, a stopper is provided to stop the operation of the tape tensioning arm, and the pin is placed near the middle of the elongated hole when the operation of the tape tensioning arm for tensioning the tape is stopped. A tape tensioning device for a vegetable tying machine, characterized in that the tape tensioning device is configured such that the tape tensioning device is positioned in the same position.