JP2005053522A - Binding apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a binding apparatus, which can be miniaturized and enables a binding strip to bind an article more tightly. <P>SOLUTION: The binding apparatus has a U-shaped pusher 26 which bends the binding strip 5 into an almost U shape around a bouquet 1 with a water-retaining bag. The U-shaped pusher 26 comprises a pusher center portion 29 and pusher bodies 28, 28 at both sides of the pusher center portion 29, and the pusher center portion 29 and the pusher bodies 28, 28 are coupled via a coil spring 30. Both ends of the binding strip 5 bent by the paired pusher bodies 28, 28 are held with a pair of grippers. Twist horns 53, 54, which guide the binding strip 5 to a twist forming position, are connected to the front of the grippers and are turned integrally. Each gripper is provided with a bending projection on a gripping surface thereof, and the projection is projected from the gripper for bending each edge of the binding strip 5 so that the binding strip 5 does not slip off when twisted. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a binding device that binds an object to be bound by a binding band such as a binding band and applies a twist to fasten the binding object.

Generally, as a bundling device for automatically bundling various bundled objects such as a bundle of electric wires and plastic parts with a binding band such as a vinyl tie or a binding band, for example, described in Patent Documents 1, 2, 3, and 4 below There is something that was done. In these binding devices, the object to be bound is surrounded by an arcuate guide, the binding band is drawn out along the inner peripheral surface of the arcuate guide, and the object to be bound is circulated, and both ends of the binding band are positioned outside the arcuate guide. The object to be bound is bound by twisting while gripping the part.
JP-A-6-321216 Japanese Patent Laid-Open No. 7-205916 JP-A-7-315317 JP-A-8-169212

However, when a flat bag made of, for example, a substantially flat bag containing various products is used as the object to be bound, the inner diameter of the arc guide needs to be larger than that of the flat bag. Since the opening / closing operation is also increased, there is a problem that the binding device is increased in size.
Further, since the binding band twisting means for gripping and twisting the binding band is located outside the arcuate guide and performs the twisting operation, the distance between the binding band twisting means and the object to be bound is the inner diameter dimension of the arcuate guide. That is, it becomes longer according to the width dimension of the object to be bound. Then, since the torsion fulcrum forming the twisted portion of the binding band is further away from the object to be bound, the distance between the twisted part and the object to be bound becomes longer, so that there is a disadvantage that tight binding cannot be performed.
In view of such a situation, an object of the present invention is to provide a bundling device capable of tightly bundling an object to be bound by a bundling band.

The binding device according to the present invention includes a pusher that surrounds the object to be bound and bends the binding band into a substantially U shape, a gripping means that grips and twists both ends of the folded binding band, and the gripping means and the binding object. And a guide part that guides the position where the twisted part of the binding band is formed, and a twisted part of the binding band is formed between the guide part and the object to be bound.
When both ends of the binding band are gripped by the gripping means and twisted while the binding band is folded in a substantially U shape surrounding the binding object, the binding band is guided and twisted by the guide portion, and the binding object and the guide A twisted part can be formed between the two parts. Therefore, the twisted portion can be formed at a position closer to the object to be bound as compared with the case where the gripping means without the guide portion is used, and tighter binding can be performed.
If the gripping means and the guide portion are integrally formed and set so as to rotate, the twisting form of the binding band by twisting becomes stable and the binding force becomes constant.

The object to be bound may include a bag containing the contents, and the pusher may be configured to bend the bag together with the binding band into a substantially U shape by pressing both sides of the bag on both sides of the contents.
Since the bag contents are supported by the pusher and the bag and the binding band are bent in a substantially U shape, the stored contents can be prevented from shifting during binding.
The pusher may be composed of a central pusher central portion and pusher main bodies on both sides thereof, and the pusher main body and the pusher central portion may be connected by an elastic member. In this case, the pusher bodies on both sides project and move so that the binding band can be bent into a substantially U shape, and the central portion of the pusher is interlocked with a relatively weak force via the elastic member. The contents can be supported by the central part of the pusher.
Further, by moving the pusher central portion and the pusher main bodies on both sides thereof in a substantially U shape, it is possible to support three sides of the object to be bound, and to prevent the binding band from being displaced during binding.

Moreover, you may provide the to-be-bundled object support guide which presses down a to-be-bundled object from the direction which opposes a pusher.
If the object to be bound is pressed from the direction facing the pusher by the object to be bound support guide, the object to be bound can be pressed from multiple directions, and it is possible to reliably prevent the object to be bound from being displaced during binding.
Moreover, you may provide the collar folding member which folds the both sides of a bag with respect to the bag and binding band folded in the substantially U shape.
If both sides of the bag are folded on the accommodation by the collar folding member and then the binding is performed by the binding band, the both sides of the bag away from the accommodation do not hinder the twisting operation of the binding band.
Moreover, the pusher may be arrange | positioned so that a binding band may be bent toward the downward side with respect to a to-be-bound object.
By bending the binding band together with the bag toward the lower side of the object to be bound by the pusher into a substantially U shape, the binding band becomes substantially parallel to or inclined downward from the upper end of the bag, and can be prevented from protruding from the object to be bound.
The gripping means may include a pair of gripping portions that grip and twist the binding band, and a bending portion that bends both end edges of the binding band protruding from the gripping portion.
Since the edge of the binding band gripped by the gripping part is bent into, for example, a substantially L shape at the bending part, it is possible to prevent the binding band from coming out of the gripping part when twisting the binding band.

  According to the binding device of the present invention, since the distance between the twisted portion and the object to be bound can be shortened, even if the object to be bound is an irregular shape such as a flat bag, close binding can be performed, and the binding device is Can be downsized. Moreover, it is easy to handle because the cable tie is hard to come off. Furthermore, since the object to be bound is held at a position where the pusher central portion of the pusher is in contact with the object to be bound, the binding object can be prevented from being displaced and can be bound even if the dimensions of the object to be bound vary.

A bundling device according to an embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a bundled flower bud with a water retaining bag, FIG. 2 is a cross-sectional view taken along the line AA of the flower bud with a water retaining bag, FIG. 3 is a diagram showing a flat bag bundling process by a bundling device, and FIGS. 4 is a side view of the main part, FIG. 5 is a plan view of the main part showing the binding band supply mechanism, FIG. 6 is a front view, and FIGS. 7 and 8 are views showing the operating state of the U-shaped pusher. 9 is a sectional view taken along the line BB of the binding band supply mechanism, FIGS. 10 and 11 are plan views of the collar folding and binding mechanism, FIG. 12 is a diagram showing a twisting mechanism of the binding band, and FIG. 13 is a twisted portion of the binding band. FIG. 14 is a time chart of each member of the binding device.
FIG. 1 shows a flower bud 1 with water retaining bag 1 (bound object). For example, a flower bag 3 and water are placed in a flat bag 2 (hereinafter referred to as a flat bag) 2 having an opening at the top and having a substantially rectangular shape. Is included. A water retaining member 4 made of a cushioning material such as sponge is attached to the inner surface of the upper opening of the flat bag 2 so as to face both surfaces, and is in close contact with the stem 3 a of the flower bud 3. The openings on both sides of the water retaining member 4 are sealed in a watertight manner. The upper portion of the flat bag 2 is bent around the stem 3a together with the water retaining member 4, and a binding band 5 is wound around the outer peripheral surface of the flat bag 2 so as to be twisted by the twisted portion 5a. The binding band 5 is, for example, a vinyl tie or a binding band, and a linear or belt-shaped iron core or the like is wrapped inside a plastic band.
FIG. 3 shows a binding process of the binding band 5 to the flower bud 1 with the water retaining bag by the binding device. In FIG. 3 (a), the flat bag 2 into which water and the stem 3a of the groom 3 are put is held in an unbound state, and a binding band 5 is overlapped on the water retaining member 4 outside the flat bag 2. Are arranged horizontally. Then, the tying band 5 and the upper sides of the flat bag 2 are simultaneously folded on both sides of the stem 3a (see FIG. 3B). Next, the upper side portions of the flat bag 2 are sequentially bent onto the stem 3a (see FIG. 3C). Finally, both ends of the binding band 5 are gripped and twisted to tightly bind (see FIG. 3D).

The bundling device 7 according to the present embodiment is for bundling the bundling band 5 through the steps shown in FIG. 3 to form the flower bud 1 with a water retaining bag shown in FIGS. 1 and 2. Hereinafter, the binding device 7 will be described.
In the bundling device 7 shown in FIG. 4, with the water bag and the stem 3a of the flower bud 3 being put into the flat bag 2, the water bag 1 is transported and the flat bag 2 is not shown on both sides of the gripper. And is conveyed in a state inclined at, for example, 30 ° with respect to the vertical direction. In the figure, a binding band supply mechanism 9 is disposed on the left side of the flat bag 2 in a stopped state, and a collar folding and binding mechanism 10 is disposed on the right side. The flower bud 1 with the water retaining bag is inclined in the direction in which the upper part approaches the binding band supply mechanism 9 relative to the lower part.
In the binding band supply mechanism 9 shown in FIGS. 5 and 6, a binding band reel 13 is disposed on a substrate 12, and a long binding band 5 such as a vinyl tie is wound. The tying band 5 fed out from the tying band reel 13 is conveyed to a linear feeding part 15 through a curved surface guide part 14 having a substantially arcuate curved surface. A groove-like tying band passage 16 is formed on the side surface from the curved surface guide part 14 to the feeding part 15 to guide and slide the tying band 5. In the curved surface guide part 14, the bending folds of the tying band 5 are corrected.
In the binding band feeding portion 15, a support plate 18 with a slit 17 is provided outside the binding band passage 16, and the binding band 5 is pressed and held in the binding band passage 16 through the slit 17 of the support plate 18. A tying band pressing portion 19 is provided. The binding band presser 19 is reciprocated by, for example, an air type slider 21. Therefore, the binding band 5 held by the binding band pressing portion 19 is unwound from the binding band reel 13 by the slider 21 and conveyed forward.
A cylinder 22 is attached to the binding band holding portion 19, and can be moved back and forth in a direction orthogonal to the conveying direction of the binding band 5 to control the gripping and detachment of the binding band 5. For this reason, the binding band pressing portion 19 grips the binding band 5 at the initial position on the curved surface guide portion 14 side and feeds it forward, and then releases the binding band 5 and returns to the initial position.

In the binding band supply mechanism 9, a cutter 23 is provided in front of the binding band holding part 19 in the direction of transporting the binding band, and a cutter 23 is provided for cutting the binding band 5 that has been fed out by a predetermined length. It is controlled to do. The binding band 5 cut to a predetermined length is stopped at that position in the binding band passage 16 on the front surface of the U-shaped pusher 26 (pusher).
In FIG. 5, the U-shaped pusher 26 is fitted in the outer frame 27 and is disposed so as to be able to advance and retreat in a direction orthogonal to the binding band passage 16. The U-shaped pusher 26 is composed of two plate-like or rod-like pusher bodies 28, 28 connected together, and a pusher center part 29 positioned between them, and the pusher center part 29 is formed between the pusher bodies 28, 28 on both sides. A part of both side surfaces is fitted into a slide groove formed on the inner side surface and is slidably held.
The pusher central portion 29 and one (or both) pusher bodies 28 are connected by an elastic member that can expand and contract, for example, a coil spring 30. The pusher body 28 is connected to the two-stage cylinder 31 so as to be able to reciprocate. In front of the pusher 26, the floret 1 with a water retaining bag before being bundled is conveyed and stopped. In this state, the stem 3a positioned at the center in the flat bag 2 by the water retaining member 4 and the seal portion is located at the center of the pusher. The upper side portions of the flat bag 2 are positioned in front of each pusher body 28 (see FIGS. 3A and 5).

When the pusher 26 is actuated by the two-stage cylinder 31, the pusher bodies 28, 28 project to the position of the stem 3 in the forward process of projecting from the base plate 12 and come into contact with the upper side portions of the flat bag 2 so as to be substantially U-shaped. An intermediate stop is performed with the stem 3 held in shape (see FIG. 8A). In this state, the transport gripper g opens the flat bag 2, and then the pusher bodies 28, 28 move to the maximum projecting position as shown in FIG. The pusher central portion 29 also protrudes in conjunction with the pusher body 28 via the coil spring 30. However, since the elastic force of the coil spring 30 is weak, the pusher central portion 29 stops while supporting the stem 3a and supports the stem 3a. Therefore, on both sides of the stem 3a, the pusher bodies 28, 28 after the intermediate stop push the upper side portions of the flat bag 2 and the binding band 5 and bend them into a U shape. In the returning process, as shown in FIG. 8B, the pusher bodies 28, 28 are stopped in the middle stage, and the binding band 5 is bound at this stage as described later. After binding, the pusher bodies 28 and 28 return to the initial position of the substrate 12 together with the pusher central portion 29 from the middle stage. As described above, the pusher bodies 28 and 28 are each operated in two stages in the reciprocating process.
In FIG. 9, the binding band supply mechanism 9 is provided with an L-shaped shutter 32 rotatably disposed so as to cover the front surface of the U-shaped pusher 26, and the shutter 32 together with the binding band passage 16. 16 is formed so that the binding band 5 can surely enter the binding band path 16 on the front surface of the U-shaped pusher 26. Moreover, the flat bag 2 conveyed with respect to the front surface of the U-shaped pusher 26 does not interfere or get caught. When the U-shaped pusher 26 is extended, the shutter 32 is retracted from the U-shaped pusher 26. In FIG. 5, a cylinder 33 for the shutter 32 is provided on the substrate 12.

Next, the collar folding and binding mechanism 10 will be described with reference to FIGS. 4 and 10 to 12.
In the collar folding and binding mechanism 10 shown in FIG. 4, a frame 35 of the binding device 7 extends upward and a frame plate 35a is attached. A cylinder 36 is disposed obliquely downward on the frame plate 35a. A stem positioning member 37 (binding object support guide) for pressing the stem 3a of the flower bud 1 with a water retaining bag is attached to the cylinder 36 so as to be able to advance and retract diagonally downward. The stem positioning member 37 has a distal end bent downward to form a stem support, and a distal end portion 37a having a fork is attached in the vicinity of the distal end, and the stem 3a is sandwiched by the distal end portion 37a at the advanced position. And the conveyance of the flower basket 1 with a water retention bag is permitted in a retreat position.
Below the stem positioning member 37, a collar folding member 39 is disposed in the horizontal direction so as to face the U-shaped pusher 26 with the flower bud 1 with a water retaining bag interposed therebetween. A collar folding member 39 shown in FIGS. 10 and 11 has a pair of cylinders 40 and 41 attached to a frame 35, and collar folding guides 42 and 43 are attached to the cylinders 40 and 41 so as to advance and retreat.
In the plan view shown in FIG. 10, the two collar folding guides 42 and 43 are positioned below the stem positioning member 37 and are arranged at an acute angle so as to intersect at the tip side. The collar folding guides 42 and 43 are formed to face each other so that the front end portions 42a and 43a bend and become substantially parallel to the front surface of the pusher central portion 29 of the U-shaped pusher 26 and overlap in the front-rear direction. Are formed with notches 44 and 44, respectively, which are open at the leading edge. The cutout 44 is formed by cutting out a width larger than the width of the binding band 5.
When the collar folding guides 42 and 43 are sequentially advanced to the position where the collar folding guides 42 and 43 interfere with the flat bag 2 by the respective cylinders 40 and 41, they pass through the binding band 5 bent in a U shape at the notch 44 and pass through the U shape of the flat bag 2. It is possible to fold the upper end portions bent to fold and press them so as to overlap the stem 3a.

Further, in FIG. 4, a twist mechanism 46 of the binding band 5 is disposed between the two collar folding guides 42 and 43, and is positioned to face the pusher central portion 29.
In FIG. 12, the torsion mechanism 46 includes a gripping means 48 and twist horns 53 and 54 (guide portions). The gripping means 48 includes an air gripper 50 and a pair of gripping portions 51 and 52 supported by the air gripper 50 so as to be openable and closable. Each of the gripping portions 51 and 52 is formed so as to face flat gripping surfaces 51a and 52a for sandwiching both ends of the binding band 5 (see FIG. 12A), and the gripping portions 51 and 52 have twist horns. 53 and 54 are connected to each other. The twist horns 53, 54 are slidably in surface contact with the guide surfaces 53a, 54a, and the outer surface opposite to the guide surfaces 53a, 54a is a tapered portion 53b tapered toward the tip side. 54b is formed. The twist horns 53 and 54 are arranged inside both ends of the binding band 5 bent in a U shape.
Then, by supplying air into the air gripper 50, the gripping portions 51 and 52 are brought into contact with each other while the guide surfaces 53a and 54a of the twist horns 53 and 54 are brought into contact with each other, and the binding band 5 is formed between the gripping surfaces 51a and 52a. The both gripping surfaces 51a and 52a are separated by sandwiching the both end portions and discharging the air from the air gripper 50. When the air gripper 50 rotates around the rotation axis O, the binding band 5 gripped by the grip portions 51 and 52 is twisted.

Further, bending protrusions 51b and 52b (bending portions) are formed at the ends of the gripping surfaces 51a and 52a on the air gripper 50 side, respectively. These bending protrusions 51b and 52b prevent the slip at the time of torsion rotation by bending both end edges of the U-shaped binding band 5 into a substantially L shape. As shown in FIG. 12A, the bending projections 51b and 52b are arranged so as to project linearly on one side of the twist horn 53 in the gripping portion 51 and on the other side of the twist horn 54 in the gripping portion 52, respectively. It is substantially rotationally symmetric about the axis O.
As shown in FIG. 4, a rotary cylinder 56 for rotating the air gripper 50 is attached to the frame 35, and the first gear 57 fixed to the output shaft is coaxial with the shaft portion 58 along the rotation axis O of the air gripper 50. It meshes with the fixed second gear 59. The shaft portion 58 is hollow, and an air passage for the air gripper 50 is formed therein.

The bundling device 7 according to the present embodiment has the above-described configuration, and the operation thereof will now be described with reference to the process diagram of FIG. 3 and the time chart of FIG.
First, the binding band 5 in the binding band passage 16 drawn out from the binding band reel 13 is gripped by the binding band pressing portion 19 and moved along the slider 21 so that the binding band 5 is further advanced forward. As a result, the leading end portion of the binding band 5 travels in the binding band passage 16 covered with the shutter 32 from the position of the cutter 23 and reaches the front surface of the U-shaped pusher 26. Then, the binding band 5 is cut into a predetermined length by the cutter 23.
On the other hand, the flower bud 1 with a water retaining bag 1 is gripped by a transport gripper g (not shown) from the direction opposite to the traveling direction of the tying band 5 and transported to the front surface of the U-shaped pusher 26 in a state inclined by, for example, 30 ° with respect to the vertical direction. 3 and is held on the discharge bucket 8 as shown in FIG. Further, the shutter 32 covering the front surface of the U-shaped pusher 26 is rotated upward so that the front surface of the U-shaped pusher 26 faces the upper part of the flat bag 2 of the tying band 5 and the flower basket 1 with the water retaining bag (FIG. 4 and FIG. 4). (See FIG. 5). Then, the stem positioning member 37 is drawn forward and pressed against the front side of the U-shaped pusher 26 with the stem 3a protruding from the flat bag 2 at the bifurcated tip portion 37a (see FIG. 4).

Next, the two-stage cylinder 31 is actuated to cause the pusher bodies 28 and 28 of the U-shaped pusher 26 to protrude in the forward process and to be temporarily stopped at an intermediate stage in contact with the flat bag 2 and the stem 3, and cooperate with the stem positioning member 37. Then, the flower bud 1 with a water retaining bag is held (see FIG. 8A). Next, the conveyance gripper g releases the holding of the flat bag 2. Then, the pusher bodies 28, 28 are moved again in the protruding direction. Then, the pusher central portion 29 projects in conjunction with the coil spring 30. When the pusher central portion 29 comes into contact with the stem 3a of the flower bud 1 with a water retaining bag, the pulling force by the coil spring 30 is small, so that the stem 3a is supported while stopped at that position.
On the other hand, the pusher bodies 28, 28 are stopped by projecting to the maximum position shown in FIG. 7 while gradually extending the coil spring 30 after the pusher central portion 29 stops. In this state, the grip surfaces 51a and 52a of the grip portions 51 and 52 are separated from each other as shown in FIG.
In addition, the tying band 5 in the tying band passage 16 and the upper ends of the flat bag 2 are bent in a substantially U shape around the stem 3 a held by the stem positioning member 37 by the protrusion of the pusher bodies 28, 28. (See FIG. 3B). Then, both ends of the binding band 5 extend to both sides of the twist horns 53 and 54, pass between the gripping surfaces 51a and 52a, and each edge protrudes to the opposite side. Thereafter, the pusher bodies 28 are returned to the intermediate stage shown in FIG. Thus, the pusher central portion 29 and the pusher bodies 28 and 28 surround the rear surface and both side surfaces of the flat bag 2 covering the stem 3a. On the other hand, since the front side of the stem 3a is pressed by the stem positioning member 37, the stem 3a is supported by being surrounded on all sides, and can prevent positional deviation at the time of binding.

In this state, as shown in FIG. 11, when one of the collars 40 of the collar folding member 39 is operated to advance the collar folding guide 42, the notch 44 of the tip end portion 42 a becomes one of the U-shaped binding bands 5. The upper end of one of the flat bags 2 is folded on the stem 3a. While pressing one upper end of the flat bag 2 with the tip 42a, the other cylinder 41 is operated to advance the collar folding guide 43 so that the notch 44 of the tip 43a has a U-shaped binding band 5. The other upper end of the flat bag 2 is passed over the stem 3a and folded (see FIG. 3C).
In this state, as shown in FIG. 12C, the gripping portions 51 and 52 are brought into contact with each other by the operation of the air gripper 50, and both ends of the binding band 5 are gripped by the gripping surfaces 51a and 52a. At the same time, both end edges of the binding band 5 protruding from the gripping surfaces 51a and 52a are bent into substantially L-shapes on opposite sides by bending projections 51b and 52b. When the rotary cylinder 56 is rotationally operated, the air gripper 50 is rotated around the rotation axis O via a transmission mechanism such as the first gear 57 and the second gear 59, and the gripping portions 51 and 52 are rotated to bind the binding band 5. Torsion is added to

At this time, since the twist horns 53 and 54 are positioned in front of the gripping portions 51 and 52 and integrally rotate, the binding band 5 is twisted in front of the twisted horns 53 and 54 along the tapered portions 53 b and 54 b. The twisted portion 5a is formed at a position closer to the stem 3a. Moreover, since both ends of the binding band 5 are bent in substantially L-shapes in opposite directions by the bending protrusions 51b and 52b, the binding band 5 slips when twisting the binding band 5 sandwiched between the grip portions 51 and 52. It can be prevented from coming off.
Only the upper end portions of the flat bag 2 folded so as to cover the stem 3a and the stem 3a in the binding band 5 twisted by sequentially retracting the collar folding guides 42 and 43 as the gripping portions 51 and 52 start to rotate. Are tied up (see FIG. 3D). Thereafter, when the pusher bodies 28, 28 are retracted from an intermediate stage to the initial position, the coil spring 30 is pushed and the pusher central portion 29 is also retracted to the initial position. The grip 48 opens the grips 51 and 52 and opens both ends of the binding band 5. Further, the stem positioning member 37 is moved backward, and the floret 1 with a water retaining bag is conveyed to the next process by the discharge bucket 8.
By repeating the above-described steps, the floret 1 with a water retaining bag can be sequentially twisted and bound by the binding band 5.

According to the binding device 7 according to the present embodiment, as shown in FIG. 13A, the binding band 5 can be twisted at a position closer to the stem 3a by the twist horns 53 and 54 to form the twisted portion 5a. Tighter binding is possible. In contrast, in the case of the conventional bundling device shown in FIG. 13B, the twisted portion 5a is formed at a position far from the stem 3a.
Further, when bundling the floret 1 with a water retaining bag by the tying band 5, the upper ends of the tying band 5 and the flat bag 2 are U-shaped by a U-shaped pusher 26 that reciprocates horizontally with respect to the inclined flower bud 1 with a water retaining bag. Therefore, the upper end portions of the binding band 5 and the flat bag 2 are folded obliquely below the flat bag 2. Therefore, the binding band 5 is bound in parallel with the folded upper end edge of the flat bag 2 and does not protrude above the flat bag 2. Moreover, the upper end of the flat bag 2 spreads freely with respect to the twisted portion 5a by binding the binding band 5 to the water retaining member 4 of the flat bag 2 so as to be positioned below the center in the vertical width direction. The binding band 5 does not come out after binding.

  As described above, according to the present embodiment, even if the object to be bound is the flat bag 2, tight binding can be performed, and the binding band 5 is difficult to be removed, so that it is easy to handle. Furthermore, since the stem 3a is held at the position where the pusher central portion 29 of the U-shaped pusher 26 is in contact with the stem 3a, the U-shaped pusher 26 can be bound even if the size of the object to be bound such as a bag varies. Moreover, the bundling device can be reduced in size.

In the above-described embodiment, the grip portions 51 and 52 and the twist horns 53 and 54 are provided integrally, but may be formed separately. Even in this case, when the binding band 5 is gripped by the gripping parts 51 and 52 and twisted, the twisted horns 53 and 54 are rotated together with the gripping parts 51 and 52, so that the twisted part 5 a of the binding band 5 is fitted with the water retaining bag 1 And the twist horns 53 and 54 can be formed, and a tight bundling can be performed.
Moreover, when twisting the both ends of a binding band, you may form so that the twist horns 53 and 54 may move to the direction of a binding object, rotating. Accordingly, the twisted portion 5a can be formed at a position closer to the object to be bound. At that time, the twist horns 53 and 54 may be connected to a driving means different from the gripping portions 51 and 52 to operate.
Further, if the twist horns 53 and 54 are formed integrally or individually in a substantially spherical shape, a substantially conical shape, or the like, the twisted portion 5a is interposed between the object to be bound and the twist horn without being rotated when the binding band 5 is twisted. Can be formed.

It is a perspective view of the flower bud with a water retention bag bound by the binding device by embodiment of this invention. It is the sectional view on the AA line of FIG. (A), (b), (c), (d) is a figure which shows the binding process of the flower bud with a water retention bag by a binding apparatus. It is a principal part side view of a binding apparatus. It is a principal part top view which shows the binding band supply mechanism in the binding apparatus shown in FIG. It is a front view of the binding band supply mechanism shown in FIG. It is a principal part top view which shows the protrusion position by the going process of a U-shaped pusher. (A) is a principal part top view which shows the intermediate | middle stage by the going process of a U-shaped pusher, (b) is a principal part top view which shows the middle stage by the return process of a U-shaped pusher. FIG. 6 is a cross-sectional view of the binding band supply mechanism shown in FIG. It is a top view of a collar folding and binding mechanism. It is operation | movement explanatory drawing of the collar folding guide of a collar folding and binding mechanism. It is a figure which shows a twist mechanism, (a) is a front view, (b) is a side view of the state which opened the holding part, (c) is a side view of the state which closed the holding part. It is a top view which shows the twisted state of the flower bud with a water retention bag by a binding belt, (a) is a figure of the twisted state by the binding apparatus of embodiment. (B) is a figure of the twist state by the conventional binding apparatus. It is a time chart which shows the operating state of each member of a binding apparatus.

Explanation of symbols

1 Flower buds with water retaining bags
2 Flat bags (bags)
3 Flowers (containment)
3a Stem (containment)
5 Bundling band 7 Bundling device 9 Bundling band supply mechanism 10 Collar folding and bundling mechanism 26 U-shaped pusher (pusher)
28 Pusher body 29 Pusher central part 30 Coil spring (elastic member)
37 Stem positioning member (Binder support guide)
39 Collar folding members 42 and 43 Collar folding guide 48 Gripping means 50 Air gripper (gripping means)
51, 52 Grasping part (gripping means)
51b, 52b Bending protrusion (bending part)
53, 54 Twist horn (guide part)

Claims (6)

A pusher that surrounds the object to be bound and folds the binding band into a substantially U shape, a gripping means that grips and twists both ends of the folded binding band, and a binding that is positioned between the gripping means and the binding object A bundling device comprising a guide portion for guiding a twisted portion forming position of the band, and forming a twisted portion of the bundling band between the guide portion and the object to be bound. The object to be bundled includes a bag containing an item to be stored, and the pusher is configured to bend the bag together with the banding band into a substantially U shape by pressing both sides of the bag on both sides of the item to be stored. The bundling device according to claim 1. The binding apparatus according to claim 2, further comprising a binding object support guide that presses the binding object from a direction facing the pusher. The binding device according to any one of claims 1 to 3, further comprising a collar folding member that folds both sides of the bag with respect to the bag and the binding band folded in a substantially U shape. 5. The bundling apparatus according to claim 1, wherein the pusher is arranged to bend the binding band toward the lower side with respect to the object to be bound. The binding device according to any one of claims 1 to 5, wherein the gripping means includes a pair of gripping portions that grip and twist the binding band, and a bending portion that bends an edge of the binding band protruding from the gripping portion.

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