JP4546321B2 - Packaging aids - Google Patents

Description

  The present invention relates to a packaging aid, and more particularly, to a packaging aid used in a packaging machine that can insert vegetables, fruits and the like into a flexible packaging bag, for example, a plastic film packaging bag.

Vegetables sold at supermarkets, such as eggplant, cucumber, asparagus, long onion, burdock, and Nagatoro are packaged in transparent plastic film packaging bags and displayed on product shelves. These bagging operations are carried out in the process from being collected by the producer to being delivered to a supermarket or the like, and are almost manually performed.
Of these bagging operations, in particular, long vegetables such as asparagus, long onion, burdock, or long rice cake must be packed in a flexible and transparent plastic film with a long length. Therefore, it is difficult to open the bag mouth of the packaging bag, and even if a long vegetable is introduced from this bag mouth, the long vegetable is often caught in the middle of the bag and cannot be smoothly introduced to the bottom. It takes a lot of labor and time for bagging of shaku vegetables, which is troublesome.

In order to reduce such bagging work, many packaging machines have been developed so far, and the contents thereof are also introduced in patent documents (for example, see Patent Documents 1, 2, and 3 below).
FIG. 11 shows a package input device for a packaging machine described in Patent Document 1 below, FIG. 11 (a) is a front view, FIG. 11 (b) is a plan view, and FIG. 11 (c) is a hopper. It is a perspective view shown.
The package input device 200 includes a cylindrical flexible hopper 205, a deformation mechanism 206 that deforms the hopper 205, and an elevating mechanism 207 that raises and lowers the hopper 205.
As shown in FIG. 11 (c), the hopper 205 used in the package input device 200 is formed with notches 205a and 205b on the side corresponding to the width direction of the bag at the bottom, and the width becomes narrower toward the tip. Is formed. The deformation mechanism 206 includes a pair of hopper support arms 208 and 209 to which the hopper 205 is attached, swing arms 211 and 212 to which the hopper support arms 208 and 209 are attached, and swing arms 211 and 212. It comprises a hopper mounting bracket 218 that is pivotably supported by horizontal fulcrum shafts 216 and 217, spring hooks 221 and 222 attached to the respective swinging arms 211 and 212, and a tension spring 223 disposed therebetween. ing.
Further, the lifting mechanism 207 includes a lifting shaft 226 that is lifted and lowered by a driving means, a lifting shaft support stand 227 and a stand cover 228 installed on the machine base, and a hopper mounting bracket 218 is attached to the tip of the lifting shaft 226 via a mounting member. It is attached and is driven up and down by a predetermined distance.

According to the package input device 200, when the hopper 205 is in the raised position, the side surfaces 205d and 205e corresponding to the bag surface are closed and flattened as the hopper 205 moves downward. When the hopper 205 is lowered by the lifting mechanism to reach a position where the cam roller 214 contacts the cam 215, the lower end of the hopper 205 is inserted into the bag mouth.
When the hopper 205 is further lowered, both side surfaces 205d and 205e of the hopper 205 are opened, and at the same time, the bag mouth is greatly expanded in the direction perpendicular to the bag surface along the outer shape of the hopper 205. In this state, an article to be packaged is fed from the hopper.

Also, an article insertion device with a simpler deformation mechanism is introduced in Patent Document 2 below.
In this article insertion device, the lower part of the hopper is composed of a narrow tongue piece and a semi-cylindrical rocking plate placed opposite thereto, and the rocking plate is tapered downward. It has become.

None of the article input devices described in Patent Documents 1 and 2 above are holding the packaging bag with the hopper, although the hopper is inserted into the packaging bag and the packaging bag is not held. The machine is also introduced in Patent Document 3 below.
12 is an external perspective view of a packaging machine described in Patent Document 3 below, and FIG. 13 is an external perspective view showing a holding frame of the packaging machine of FIG.
In the packaging machine 350, a rotating body 353 is pivotally supported on a support 352 standing on a base material 351, three L-shaped arms 354 are attached to the rotating body 354, and an opening through which an article to be packaged can pass is provided. Each holding frame 355 is attached to each arm 354.
The packaging machine 350 attaches the packaging bag 356 to the holding frame 355 by rotating the holding frame 355 at the tip of the arm 354 together with the rotating body 353 in the counterclockwise direction. Locking is performed at a position rotated in the clockwise direction, and an operation for inserting an article to be packaged into the packaging bag 356 is performed. That is, when the holding frame 355 passes through the attaching means provided below the rotating body 353, the packaging bag 356 is attached to the holding frame 355, and then the holding frame 355 is rotated to the upper right position. The holding frame 355 is locked by the click mechanism, and an article to be packaged is put into the attached packaging bag 356.

Further, as shown in FIG. 13, the holding frame 355 has a lower outer peripheral surface 355a of the holding frame 355 that is parallel to the axis C direction of the holding frame 355, and an upper outer peripheral surface that extends above the lower outer peripheral surface 355a. A configuration in which the inclined surface 355b is inclined toward the axis C, and the upper inner peripheral surface of the holding frame 355 is a continuous convex curved surface having no inflection points smoothly curved downward from the upper edge of the inclined surface 355b. It has become. Reference numeral 355c is a guard member.
When the lower outer peripheral surface 355a of the holding frame 355 is a surface parallel to the axis C direction and the inclined surface 355b is formed continuously therewith, the general shape of the entire outer peripheral surface of the holding frame 355 becomes a shape that narrows upward. For this reason, when the packaging bag 356 is attached to the holding frame 355 by the attaching means, the attachment can be performed easily and reliably.

JP 2000-177711 A (FIGS. 1 and 4, paragraphs [0017] to [0019]) Japanese Utility Model Publication No. 2-34166 (FIG. 1, claims for utility model) Japanese Patent No. 2883843 (FIG. 1, paragraphs [0052] to [0054])

According to the article input device described in Patent Document 1, the flexible hopper is movable up and down, and both side surfaces corresponding to the bag surface of the hopper are opened and closed around the vicinity of the upper end of the hopper, Until the hopper is lowered and inserted into the bag mouth, it is closed and kept flat, and is opened after insertion to become an opening. Thereby, it is a narrow bag mouth and insertion of a hopper becomes easy, and a bag mouth can be expanded and hold | maintained after insertion.
However, since the package input device is a unitary structure in which the hopper is made of a flexible material (resin such as hard polyethylene) in a cylindrical shape, a mold is required for its manufacture. Since the mold is expensive, the cost of the hopper cannot be reduced. Also, it is not realistic to prepare and place various types of hoppers with different sizes from the viewpoint of cost. For this reason, depending on the size of the package, the optimum hopper cannot be selected and used, and the application may be limited.
Further, the deformation mechanism for deforming the hopper is composed of a number of parts such as a pair of hopper support arms, a swing arm, a pair of spring hooks, and a tension spring attached to the spring hooks. Becomes expensive. Further, since this deformation mechanism is operated in conjunction with the vertical movement of the elevating mechanism, the number of movable parts increases according to the number of parts, and failure tends to occur.

  In the article insertion device described in Patent Document 2, when the swinging plate is closed, the tip becomes narrow and easy to insert into the bag mouth. After the insertion, the swinging plate is opened so that the bag mouth becomes the outer shape of the swinging plate. However, when the swinging plate opens, a large gap is created between the tongue piece and the swinging plate, and the packaged items pop out of the gap or get caught by the gap or the edge of the bag. There is a fear.

According to the packaging machine described in Patent Document 3 above, a rotating body is pivotally supported on a column that is erected on a base material, three L-shaped arms are attached to this rotating body, and further, an article to be packaged can pass through. By attaching a holding frame having a clear opening to each arm and rotating the rotating body counterclockwise, the packaging bag is attached to the holding frame, so that the work for inserting the package is continuously performed. And the efficiency of the packaging work can be greatly improved.
However, this packaging machine is also limited in type (size) because the holding frame is formed of a molded body, and it is difficult to pack the bag depending on the type, size, amount, and the like of the package.
In addition, the holding frame has a circular cylindrical shape at the insertion portion into the bag mouth. For this reason, the opening of the bag mouth is performed by blowing air by the opening mechanism of the bag mouth, but at this time, the bag mouth must be expanded to a size that allows the circular outer shape of the holding frame to be inserted. In the case of a packaging bag where the size of the holding frame is close to the size of the bag mouth, this size of opening cannot be smoothly inserted into the bag mouth unless the bag mouth is opened beyond the outer shape of the holding frame. This may cause loss of packaging bags.

  The present invention has been made to solve the above-described problems of the prior art, and an object of the present invention is to provide a packaging auxiliary tool with a reduced number of parts, a simple configuration, and a low cost. It is in.

In order to achieve the above object, a packaging auxiliary tool according to claim 1 of the present application is a packaging auxiliary tool including a hopper for loading an article to be packaged, and an elevating mechanism for moving the hopper up and down. The hopper includes an annular ring having a predetermined diameter and a pair of first and second arms that rotatably pinch a part of the outer periphery of the annular ring, and a plurality of the annular rings are provided. A plurality of annular rings are narrowly spaced at the upper part of the first and second arms, and a plurality of annular rings are sandwiched between the lower part and the lower part, and the first arm is fixed to the lifting mechanism. The second arm is provided with a lowering restricting member and suspended from the first arm, and when the first arm is pulled up by the lifting mechanism, the second arm is moved closer to the first arm. The annular ring is suspended Packaging bag is moved upward from the bag opening to be inserted into the bag mouth, it followed, when lowered the hopper by the elevator mechanism, to stop the descent of the second arm by the drop restricting member, The annular ring is held in a horizontal state in the packaging bag.

  A second aspect of the present invention relates to the packaging aid according to the first aspect, wherein the hopper includes a plurality of annular rings, and a plurality of upper rings of the first and second arms. The annular ring has a narrow interval, and a plurality of annular rings are sandwiched between the annular portions at a lower portion.

The invention according to claim 2 relates to the packaging aid according to claim 1, wherein the annular ring has any one of a circular shape, an elliptical shape, and a polygonal shape. To do.

The invention according to claim 3 relates to the packaging aid according to claim 1, wherein the first and second arms sandwich a plurality of the annular rings and connect both arms. When the annular ring is in a suspended state, a lower end portion of the first arm or the second arm extends downward from the lower end portion of the second arm or the first arm by a predetermined length.

The invention according to claim 4 relates to the packaging auxiliary tool according to claim 1, wherein the first and second arms are in a state where the annular ring connecting both arms is in a horizontal state. It is characterized in that the lower ends are formed to have the same length.

The invention according to claim 5 relates to the packaging auxiliary tool according to claim 1, wherein the hopper is attached to the elevating mechanism by a detachable coupling means.

The invention according to claim 6 relates to the packaging auxiliary tool according to claim 1, wherein the hopper is placed at a position close to the annular ring located at the uppermost position of the annular ring. A guide member is provided to guide the movement.

The packaging auxiliary tool according to claim 7 is a packaging auxiliary tool comprising: a bag holder inserted into the packaging bag to hold the packaging bag; and an operation mechanism for moving the bag holder to a predetermined position. ,
The bag holder includes an annular ring having a predetermined diameter and a pair of first and second arms that rotatably pinch a part of the outer periphery of the annular ring. The first and second arms are When the first and second arms are moved in the horizontal direction by the operation mechanism, the annular ring is moved close to the operation mechanism. The gap between the first and second arms is gradually increased when the first and second arms are erected at a predetermined angle by the operation mechanism. The annular ring is expanded to hold the annular ring in a horizontal state when each arm stands.

The invention of claim 8 relates to packaging aid according to claim 7, wherein the bag holder is provided with a plurality of annular rings, these annular rings, the first, second A space between the annular rings of the attachment portion of the arm to the operation mechanism is wide, and a space between the annular rings at the other end is narrowed and sandwiched.

The invention of claim 9 relates to packaging aid according to claim 7, wherein the bag holder is characterized in that it is coupled by a universal coupling means removably attached to said operating mechanism.

The invention described in claim 10 relates to the packaging auxiliary tool described in claim 7 , wherein the annular ring has a circular or elliptical shape.

By providing the above configuration, the present invention has the following excellent effects. That is, according to the first aspect of the present invention, the hopper is constituted by an annular ring having a predetermined diameter and a pair of first and second arms that rotatably pinch a part of the outer periphery of the annular ring. Since there are a plurality of annular rings, a plurality of annular rings are sandwiched between the upper portions of the first and second arms, and a plurality of annular rings are sandwiched between the lower portions. The number of types of parts is extremely small, and the shape of each part is simple, and it is possible to manufacture by simple processing with an inexpensive member. As a result, a mold is not required as in the prior art, and the material and processing costs can be kept low, so that packaging aids of different sizes, types, etc. can be provided to the user at a low price.

Furthermore, when packaging a leafy vegetable or the like having a small specific gravity and a large friction as a packaged object, it is possible to reduce the number of contacts between the packaged object and the annular ring of the hopper after the packaged product is inserted. Therefore, when the bag is peeled from the packaging machine, the packaged product can be smoothly wrapped without being caught by the hopper.

According to the invention of claim 2 , since the annular ring is formed in any one of a circular shape, an elliptical shape, and a polygonal shape, the ring is provided with a ring that matches the size and shape of the packaging bag. Can provide assistance tools.

According to the invention of claim 3 , the first and second arms sandwich the plurality of annular rings, and when the annular ring connecting both the arms is in a suspended state, the first arm or the second arm Since the lower end of the first arm extends downward from the lower end of the second arm or the first arm by a predetermined length, when the first and second arms are inserted into the packaging bag, the inside of the packaging bag is expanded. Packing becomes smooth. That is, when the first arm or the second arm is in the state where the annular ring is suspended, one of the first arm or the second arm is always longer than the other, so that when the hopper is inserted into the packaging bag, the first arm or the second arm Since either one of these is inserted into the bag mouth of the packaging bag before the other, the hopper can be inserted more reliably than when both arms are simultaneously inserted into the bag mouth.

According to the invention of claim 4 , the first and second arms are formed so that the lengths of the lower ends are the same when the annular ring connecting both arms is in a horizontal state. Even if the packaging bag is crimped by its own weight during transportation or storage, or when it is difficult to open due to static electricity, the opposing surfaces of the packaging bag can be supported symmetrically and opened, ensuring the package Can be inserted to the bottom of the bag.

According to the invention of claim 5 , since the hopper is attached to the elevating mechanism by the detachable coupling means, the hopper can be removed. As a result, it can be easily replaced with a suitable hopper according to the size, type, etc. of the package. Further, even when the hopper breaks down, it can be repaired by removing it from the lifting mechanism.

According to the sixth aspect of the present invention, since the hopper is provided with a guide member for guiding the introduction of the packaged object at a position close to the annular ring located at the uppermost position of the annular ring, the hopper of the packaged object is provided. The input to the will be smooth.

According to the invention of claim 7 , the bag holder is composed of an annular ring having a predetermined diameter and a pair of first and second arms that rotatably pinch a part of the outer periphery of the annular ring. As a result, the number of types of parts is extremely small, and the shape of each part is simple, and it is possible to manufacture with simple processing with an inexpensive member. As a result, a mold is not required as in the prior art, and the material and processing costs can be kept low, so that packaging aids of different sizes, types, etc. can be provided to the user at a low price.

According to an eighth aspect of the present invention, the plurality of annular rings have a wide interval between the annular rings of the first and second arms attached to the operation mechanism, and an interval between the annular rings at the other end. Since it is sandwiched narrowly, when the article to be packed is pushed into the bag held by the bag holder, a part of the packaging bag is caught in the gap between the annular rings, or the packaging bag is passed through this gap. Since it is possible to prevent catching due to contact with each other, a smoother packaging operation can be performed.

According to the ninth aspect of the present invention, since the bag holder is attached to the operation mechanism by the detachable coupling means, it can be easily removed. As a result, it can be easily exchanged for a suitable bag holder according to the size, type, etc. of the package. Further, even when the bag holder breaks down, it can be removed from the operation mechanism and repaired.

According to the invention of claim 10 , since the annular ring is formed in a circular shape and an elliptical shape, it is possible to provide a packaging aid provided with a ring that matches the size and shape of the packaging bag.

  Hereinafter, the best embodiment of the present invention will be described with reference to the drawings. However, the embodiment shown below exemplifies a packaging aid for embodying the technical idea of the present invention, and is not intended to specify the present invention as this packaging aid. Other embodiments within the scope of the claims are equally applicable. Hereinafter, a packaging machine using the packaging aid of the present invention will be described.

  1 is a perspective view of a packaging machine using a packaging auxiliary tool according to Embodiment 1 of the present invention, FIG. 2 is a perspective view showing a hopper of the packaging machine of FIG. 1, and FIG. 3 is a bag holding of the packaging machine of FIG. FIG. 4 is an operation explanatory diagram of the packaging machine in FIG. 1.

  The packaging machine 1 includes a bag holder 50 to which a plurality of packaging bags 53 are attached, a bag opening mechanism 40 for opening a bag opening 56 of the packaging bag 53 attached to the bag holder, and the bag opening. A hopper 10 that is inserted into a bag mouth that is opened by the mechanism and into which an article to be packaged is inserted, a hopper introduction mechanism 30 that lifts and inserts the hopper into the bag mouth, a bag mouth opening mechanism 40, and a hopper introduction mechanism 30 and an operating mechanism 20 for operating 30, and these mechanisms are attached to a pair of columns 3 and 4 erected from the base 2.

The base 2 is composed of a frame of a predetermined size so that it can be stably placed on the floor surface of a bagging workshop, a work table or the like, and the frame is composed of opposing short side frame pieces 2a, 2b. And the long side frame pieces 2c and 2d are formed in a substantially rectangular shape. From each long side frame piece 2c, 2b, the support | pillars 3 and 4 of predetermined length are standingly arranged by the angle of about 90 degrees.
Between these support columns 3, 4, a bag support 48 for fixing a bag holder 50 that suspends the packaging bag 53 is provided. An operating lever 41 of the bag opening mechanism 40 is attached to the lower end 3 a of one of the columns 3 and 4. Further, a support means 35 that supports the guide member 31 of the hopper introduction mechanism 30, the first operating lever 22 of the operation mechanism 20, and the adjustment member 47 of the bag opening mechanism 40 are attached to each of the columns 3 and 4.

The operating mechanism 20 includes a relatively long first operating lever 22, an operating lever 21 connected to one end of the operating lever 22, and a second operating lever 23 connected to the other end at a predetermined angle. 1 actuating lever 22 is pivotally supported by support columns 3 and 4.
An operation cam piece 24 directed downward is fixed to the operation lever 21, and a rotating body 25 and an operating piece 26 are provided on the operation cam piece 24. When the operating lever 21 is pushed downward, the rotating body 25 contacts the cam piece 44 of the bag opening mechanism 40 and moves the bag opening mechanism 40 to the packaging bag 53 side. It has the function of opening the mouth. The second operating lever 23 is connected to a T-shaped upper bar 33 of the hopper introducing mechanism 30.
Therefore, when the operation lever 21 is moved up and down, the first operating lever 22 swings around the pivotal support portion 22a and performs a so-called lever action, so that the second operating lever 23 and a hopper connected to the operating lever are obtained. The guide member 31 of the introduction mechanism 30 can be smoothly moved up and down with a small force of the operation lever 21.

The hopper introduction mechanism 30 includes a guide member 31 for moving the hopper 10 up and down, and a support unit 35 that supports the guide member 31. The guide member 31 is formed of a substantially T-shaped rod-shaped body having the T-shaped upper bar 33 and the lower bar 32 extending downward from the upper bar 33. The upper bar 33 has one end fixed to the hopper support arm 34 and the other end fixed to the second operating lever 23 by a support shaft 23b.
The lower bar 32 serves as a guide rod (hereinafter referred to as a guide rod) that guides the hopper 10 in the vertical direction. The guide rod 32 is located on the back surface of the columns 3 and 4 and has a predetermined distance from the hopper 10. The hopper 10 is held by the support means 35 so that the hopper 10 can be slid up and down at a distant position.

The support means 35 supports the guide rod 32 and smoothly slides it, and includes four guide rollers 36 and 36 and a frame body 37 to which these guide rollers are attached. The four guide rollers 36 and 36 are fixed to the frame body 37 so as to face each other with the guide rod 32 interposed therebetween. The frame body 37 is fixed to the support columns 3 and 4 via a support plate. Of the four guide rollers 36, 36, the other two rollers are provided at locations facing the rollers 36, 36 and are hidden in FIG.
Therefore, by fixing the guide member 31 to the support columns 3 and 4 by the support means 35, the guide member 31 is firmly attached and the vertical movement of the guide member 31 is stabilized. As a result, the hopper support arm 34 is not shaken, and the vertical movement of the hopper 10 can be stabilized.

A plurality of pin mounting holes 32 _{1 to} 32 ₃ are provided at the lower end of the guide rod 32. These the pin mounting holes ₃₂₁ to 323 is adapted to stop pin 33 ₀ having a predetermined length is inserted. The stop pin 33 _0, when the guide rod 32 is lifted, as a stopper for preventing slip out from the frame 37, and functions as a regulatory mechanism 32a for adjusting the movement distance of the hopper 10. That is, the stop pin 33 ₀ from the lowest position 32 ₃ in FIG. 1, the upper, for example, is moved to the pin mounting hole 32 _1, the moving distance of the hopper 10 is a distance fraction less moving the stop pin. Therefore, by changing the mounting position of the stop pin 33 _0, regulation of insertion length of the hopper 10 into the packaging bag, and it allows the selection of the packaging bag to suit the packaged articles.

Further, by changing the mounting position of the stop pin 33 _0, will also change the movement distance of the hopper 10, it is also required adjustment of the bag mouth opening mechanism 40. This adjustment is performed by moving the position of the cam piece 44 provided on the operating lever 41. That is, the position of the holes 32 ₁ Install the stop pins 32 _0, concomitantly to move downward, the mounting position of the cam piece 44 is also moved downward.
By changing the mounting position of the cam piece 44, the rotating body 25 of the operation mechanism 20 comes into contact with the cam piece 44 accurately, and smooth operation becomes possible.

1 and 2, the hopper 10 includes a plurality of annular rings 13a to 13n having a predetermined size, and a pair of first and second arms 11 to which these annular rings 13a to 13n are attached. 12. The annular rings 13a to 13n are circular rings having a diameter slightly shorter than the diameter of the bag mouth of the packaging bag 53, and are manufactured by bending a metal rod having a predetermined thickness into a circular shape. Each arm 11, 12 is made of a rod-like body having a narrow width and a predetermined thickness, and a plurality of through-holes equal in number to at least a plurality of annular rings attached at equal intervals from one end to the other end. 11 _{1 to} 11 _n and 12 _{1 to} 12 _n are formed. Each of the through holes 11 _{1 to} 11 _n and 12 _{1 to} 12 _n is formed to have a diameter slightly larger than the diameter of the cut surface of the annular rings 13 a to 13 _n , and the through holes 11 _{1 to} 11 _n and 12 _{1 to} 12 _n are annular. When the ring is clamped, the annular ring can freely rotate in the through holes 11 _{1 to} 11 _n and 12 _{1 to} 12 _n . The annular rings 13a to 13n are attached to both the arms 11 and 12 by dividing the arms 11 and 12 on a center line passing through the through holes 11 _{1 to} 11 _n and 12 _{1 to} 12 _n. It is attached by clamping one end of ˜13n.

The plurality of through holes 11 _{1 to} 11 _n and 12 _{1 to} 12 _n provided in the first and second arms 11 and 12 may be equally spaced, but preferably the upper ends of both arms 11 and 12. The through holes provided in the periphery of the part make the interval relatively short, and the through holes provided in the vicinity of the lower end part make the interval relatively long. If it does in this way, when packaging leafy vegetables etc. with a small specific gravity and a large friction as a packaged item, the number of contacts between the packaged product and the hopper 10 is reduced after the packaged product is inserted. Therefore, when the bag is peeled from the packaging machine, the packaging object can be smoothly wrapped without being caught by the hopper 10.

  The first and second arms 11 and 12 are formed so that the lower end portions 11a and 12a have substantially the same height in a state where the attached annular rings 13a to 13n are horizontal, and the upper end of the first arm 11 is formed. Is extended longer than the second arm 12, and a rod-like body 14 is attached to the upper end of the second arm 12 as a lowering restricting member that abuts against a stopper 6 described later and prevents the lowering of the arm 12. ing. A hopper support arm 34 is attached in the vicinity of the upper end portion 11b of the first arm 11, and the hopper support arm 34 and the second arm 12 are coupled by a detachable coupling means (not shown). By using this detachable coupling means, the first arm 11 can be detached, that is, the hopper 10 can be detached freely, and can be replaced with a hopper having an annular ring of a different size. The optimum hopper can be selected according to the size of the package. In the above description, the positions of the lower ends 11a and 12a of the first arm 11 and the second arm 12 are assumed to be the same height when the annular rings 13a to 13n are in a horizontal state. Since the lower end portion 12a of the second arm 12 is positioned lower than the lower end portion 11a of the first arm 11 in the suspended state, the lower end portion 12a of the second arm 12 is inserted into the bag bottom portion. Even if the bag is crimped by its own weight during transportation or storage, or even when it is difficult to open due to static electricity, the opposite surfaces of the bag can be supported symmetrically and opened. The packaged object can be reliably inserted to the bottom of the bag. The lower end portion 11a of the first arm 11 or the lower end portion 12a of the second arm 12 is longer than the lower end portion 12a of the second arm 12 or the lower end portion 11a of the first arm 11 with the annular rings 13a to 13n suspended. You may form as follows. If it does in this way, since either one of the lower end part 11a of the 1st arm 11 or the lower end part 12a of the 2nd arm 12 will be inserted first at the time of insertion of the hopper 10, insertion of the hopper to a bag mouth will be carried out. Become more certain. In addition, when the packaging bag 53 bag mouth 56 is suspended so as to be opened in the direction of the second arm 12 as shown in FIG. 1, the second arm 12 is suspended while the annular rings 13 a to 13 n are suspended. If the lower end portion 12 a is longer than the lower end portion 11 a of the first arm 11, the hopper 10 can be more reliably inserted into the packaging bag 53.

  The hopper 10 assembled as described above moves the pair of first and second arms 11 and 12 to opposing positions on the outer periphery of the annular rings 13a to 13n, that is, puts them in a parallel state. The first arm 11 is attached to the hopper support arm 34, and the second arm 12 is suspended from the first arm 11 by the annular ring 13a so as to approach the first arm 11 with the hopper 10 raised. Further, a guide member 15 for guiding the introduction of an object to be packaged via the hopper 10 is attached in the vicinity of a position fixed to the hopper support arm 34 of the first arm 11. As the guide member 15, for example, a cylindrical body having a relatively large diameter at the upper part and a relatively small diameter at the lower part is preferable.

  The support columns 3 and 4 are provided with stoppers 6 that contact the upper ends 3 b and 4 b (not shown) of the rod-shaped body 14 at a predetermined height and prevent the second arm 12 from descending. The stopper 6 may be bent in a U-shape, for example, and its end may be fixed to the top of the support columns 3 and 4. Preferably, the stopper 6 is inclined downward from the fixed portion toward the front surface. . As a result, when the hopper 10 is lowered and the rod-like body 14 comes into contact with the stopper 6 and further lowered, the second arm 12 is smoothly moved forward, and the annular rings 13a to 13n are smoothly moved. Can be leveled. However, the stopper 6 may be provided horizontally. Moreover, if the attachment position of the rod-shaped body 14 and the position of the stopper 6 are adjusted so that the annular rings 13a to 13n are substantially in a horizontal state when the hopper 10 reaches the lowest position, the packaging material is charged. Sometimes the hopper 10 is in the most open state and can be loaded more easily.

As shown in FIG. 1, the bag opening mechanism 40 includes a substantially L-shaped operating lever 41, an adhesive member 46 fixed to the tip of the operating lever 41, and an adjusting member that restricts the rotation of the operating lever 41. The L-shaped actuating lever 41 includes a long side lever 42 and a short side lever 43. The short side lever 43 is pivotally supported by the support column 3 by a support shaft 43a. The long side lever 42 is rotatably fixed by a support shaft 45 so that the adhesive member 46 is parallel to the bag support portion 48 at the tip thereof.
The adhesive member 46 includes a roll 46a having substantially the same length as the width of the packaging bag and an adhesive material 46b mounted on the roll. It is pivotally supported at the tip. For the adhesive 46b, an adhesive that can be easily peeled off and reused, such as PVA (polyvinyl alcohol), is used. By using such an adhesive, the adhesive surface can be recovered and reused by washing the adhesive surface with water when the adhesive force is reduced.

  When the adhesive member 46 is pivotally supported at the tip of the long side lever 41, it can be attached to a thin and flexible packaging bag in a detachable manner, so that the opening of the bag mouth is simplified. Further, when the roll 46a is rotated, a place where the adhesive material 46b is attached is moved, and the adhesive material can be prolonged. Further, since the adhesive member 46 rotates when the packaging bag is pulled, opening of the bag mouth becomes easy. In addition, it is necessary to maintain this open state until the bag mouth is opened and a packaged item is inserted. In order to maintain this state, an adjustment member 47 that restricts the swing range of the long side lever 41 is provided on the support column 3. For the adjustment member 47, for example, a metal fitting having an overall L-shape having an adjustment groove is used.

An operation cam piece 24 facing obliquely downward is attached near the tip of the long side lever 41 near the tip of the long side lever 41, that is, in the vicinity of the location where the adhesive member 46 is attached. The operation cam piece 24 has a predetermined length, and when the operation lever 21 is pushed down, the rotating body 25 pushes down while rolling the upper surface of the cam piece 44. Then, the adhesive member 46 is moved in the direction of the front fabric of the packaging bag (not shown) via the long side lever 41 to be adhered.
When the rotating body 25 passes the tip of the cam piece 44, the rotating body 45 moves to the lower surface of the cam piece 44, and then when the operation lever 21 is lifted upward, the rotating body 25 moves the end of the cam piece 44. lift. Since the cam piece 44 is pivotally supported by the tip of the long side lever 41 by this lifting, the end of the cam piece 44 is lifted up to a predetermined position by the rotating body 25, and the cam is moved after the predetermined position. The tip of the end of the piece 44 slides down from the rotating body 25. Thereafter, the rotating body 25 lifts the cam piece 44, thereby supporting the long-side lever 41, and the adhesive member 46 is stuck on the front fabric of the packaging bag and slowly tilted in the direction of enlarging the bag mouth while being stuck. The bag mouth is opened over a predetermined time. Since the opening of the bag is slowly opened by this opening operation, it is possible to eliminate breakage or the like of the bag at the time of opening compared to the case where the adhesive member is immediately separated after being attached.

  As shown in FIG. 1, the bag support portion 48 is made of a plate-like body having a length capable of suspending a long packaging bag, and a bag holder 50 for suspending the packaging bag on the surface thereof is detachable. Fixed. By detachably fixing the bag holder 50 to the bag support portion 48, when the suspended packaging bag is consumed, the packaging bag is suspended from other bag holders in advance. By exchanging, the packaging bag can be easily supplied. For example, a hook or a support pin is used as a fixing means for the holder.

FIG. 3 shows a bag holder and a packaging bag, FIG. 3 (a) is a perspective view of the bag holder, and FIG. 3 (b) is a perspective view of a packaging bag suspended from the holder.
The bag holder 50 includes a pair of hooks 52a and 52b and a plate body 51 to which the hook is fixed. The pair of hooks 52a and 52b has the same interval as the interval between the mounting holes 57a and 57b of the packaging bag 53. Opened and fixed to the plate 51. Further, the plate body 51 is provided with openings 53a and 53b at both ends so that the plate body 51 can be detachably attached to the mounting bracket of the bag support portion 48.
By suspending a plurality of packaging bags 53 on such a bag holder 50 in advance and preparing the required number, when the packaging bag of one holder is consumed, it is replaced with the next holder. A simple work efficiency can be improved.

  In addition, the packaging bag 53 is formed of a long and narrow envelope-like bag body having a predetermined lateral width and a longitudinal dimension longer than the lateral width so that a long object can be packed, A pair of mounting holes 57a and 57b are formed. Further, perforations 57′a and 57′b reaching the pair of attachment holes 57a and 57b are provided in the upper portion of the bag body. The packaging bag 53 is formed of an elongated surface fabric body 54 and a back fabric body 55 which is disposed on the back side of the surface fabric body 54 and has the same width as the surface fabric body and is slightly longer. The front surface fabric body 54 and the back surface fabric body 55 may be the same material or different materials, and may be transparent, translucent or opaque material. Further, the material is not limited to the synthetic resin film, and is made of paper. May be used.

  Next, the bagging operation of the package into the packaging machine will be described with reference to FIG. 4 is an operation explanatory view of the packaging machine shown in FIG. 1 as viewed from the side. In the following description, the reference numerals not shown in FIG. First, the operation lever 21 is pushed downward as indicated by an arrow. When the operating lever 21 is pushed downward, the first operating lever 22 swings about the pivotal support 22a, the other end of the operating lever 22 is lifted, and the second operating lever 23 having one end connected to the other end. Push up. By pushing up the operating lever 23, the guide member 31 coupled to the upper end of the operating lever 23 is pushed up, and the hopper 10 connected to the guide member 31 is raised (FIGS. 4A and 4). b)). Since the guide member 31 is supported by the support means 35, the guide rod 32 is smoothly moved upward, and the hopper 10 is also moved upward following this.

When the operation lever 21 is further pushed down, the guide member 31 is raised and the hopper 10 is also lifted by this depression, and the lower end portions (11a, 12a) of the hopper 10 are above the bag mouth of the packaging bag 53 attached to the support plate. Move to.
By the upward movement of the hopper 10, the first arm 11 of the hopper 10 is pulled up, the second arm 12 is also lifted as the first arm 11 is pulled up, and the second arm 12 approaches the first arm 11. That is, as the hopper 10 is raised, the second arm 12 follows the pulling up of the second arm 11 when the rod-like body 14 is separated from the stopper 6, and the second arm 21 approaches the first arm 11. (See FIGS. 4C and 4D).
In addition, when the operating lever 21 is pushed down, the rotating body 25 at the hand of the operating lever 21 engages with the cam piece 44 of the operating lever 41, and the free end of the operating lever 41 of the bag opening mechanism 40 is moved in the direction of the column 3 The adhesive member 46 provided at the free end is pressed against the bag mouth of the packaging bag 53 (FIG. 4C).

  Next, the operation lever 21 is further pushed down. By this depression, the hopper 10 is further lifted, and the rotating body 25 engaged with the cam piece 44 of the operating lever 41 is released from the cam piece 44. The actuating lever 41 rotates around the shaft fulcrum 43a to return to the original position. With the return of the operating lever 41, the adhesive member 46 provided at the free end of the operating lever 41 also returns to its original position, and the bag mouth 56 of the packaging bag 53 adhered to the adhesive member 46 is opened (FIG. 4D). FIG. 4 (e)).

  Thereafter, when the operating lever 21 is lifted, the hopper 10 is lowered accordingly, and the lower ends 11a and 12a of the first and second arms 11 and 12 are inserted into the already opened bag mouth. At this time, since the hopper 10 is inserted into the bag mouth with the annular rings 13a to 13n hanging down, it is not necessary to open the bag mouth larger than the diameter of the annular ring, and the lower ends 11a of the pair of arms 11 and 12 are used. , 12a can be inserted satisfactorily as long as it can be inserted. When the operation lever 21 is lifted and the lower ends 11a and 12a of the first and second arms 11 and 12 are inserted to a predetermined position, the rod-like body 14 provided on the second arm 12 and the stopper 6 are inserted. And the lowering further proceeds, the lowering of the second arm 12 is suppressed by the contact between the stopper 6 and the rod-like body 14. At this time, since the arms 11 and 12 are connected by the annular rings 13a to 13n, when the lowering of one of the arms stops, the annular rings 13a to 13n are pushed forward, so that the annular rings 13a to 13n begin to open ( (Refer FIG.4 (e)).

  Then, when the operation lever 21 returns to the original position, the annular rings 13a to 13n are in a horizontal state, and the annular bag 13a to 13n maintains the packaging bag 53 in an open state. For example, if a long onion in FIG. 4 is input, it will be inserted into the packaging bag 53 without being caught by the hopper 10 (see FIG. 4F).

  With the above-described configuration, the packaging machine of the present invention opens when the hopper is inserted into the packaging bag, so that the hopper itself is opened. Packaging can be performed without causing Further, since this hopper is composed of an annular ring of a predetermined size and a pair of first and second arms that are respectively supported on the outer periphery of the annular ring, the structure is simple and can be manufactured at low cost. For this reason, since many hoppers with different sizes can be easily manufactured, various types of hoppers that can be applied to a wide range of packages according to the size of the package can be provided at low cost.

5 is an external perspective view in which the packaging auxiliary tool according to the second embodiment of the present invention is applied to another packaging machine, FIG. 6 is an external perspective view showing an operation mechanism of the packaging machine in FIG. 5, and FIG. It is an external appearance perspective view which shows the bag holder of a packaging machine.
As shown in FIG. 5, the packaging machine 101 includes a bag support 140 on which a plurality of packaging bags are mounted, and an opening mechanism 110 that opens a bag mouth of the packaging bag mounted on the bag support (see FIG. 8). ), A bag holder 120 that is inserted into the bag opening opened by the opening mechanism and holds the packaging bag, and an operation mechanism 130 that inserts the bag holder into the packaging bag and moves it to a predetermined position. The mechanism 130 has a configuration that is movably attached to the pedestal 102.

The pedestal 102 is composed of a rectangular frame 103 having a predetermined size. The frame 103 has long side frame pieces 103a and 103b and short side frame pieces 103c and 103d facing each other. The frame pieces 103a to 103d are connected at the ends to form a rectangular frame shape.
The short-side frame pieces 103c and 103d are longer than the diameter of the annular rings 121a to 121n constituting the bag holder 120, and the long-side frame pieces 103a and 103b are a pair of first pieces constituting the bag holder 120. The second arms 122a and 122b are longer than the length of the second arms 122a and 122b, and support columns 104a and 104b having a predetermined length are provided upright from substantially the center thereof. Further, in each of the long side frame pieces 103a and 103b, small columns 105a to 105d that are slightly shorter than the columns 104a and 104b in the central portion are respectively positioned adjacent to the columns 104a and 104b and close to the frame pieces 103c of the short side. It is erected. The small struts 105 a to 105 d are joined at their tops with connecting pieces to form a small frame, and the small frame is a mounting table for the bag support 140. In addition, although the code | symbols 105b and 105d are provided in the long side frame piece 103b, they are under the bag support body 140 and are hidden in FIG.

  Further, a guide member 104 is attached to the frame 103 between the opposing short side frame pieces 103c and 103d. The guide member 104 has substantially the same length as the long side frame pieces 103a and 103b and a predetermined width length. Both end portions are fixed to the center portions of the opposing short-side frame pieces 103c and 103d, respectively. Furthermore, U-shaped grooves are formed in both width portions, and the slider 137 of the operation mechanism can slide in these grooves. The guide member 104 has a stopper 104c that restricts the sliding of the slider 137 by closing the end attached to the short side frame piece 103c (see FIG. 8).

  The opening mechanism 110 includes a blower 111 for supplying air to the bag mouth, a duct for guiding the air of the blower 111 to the vicinity of the bag mouth, and an exhaust port 112, and supplies the air to the bag mouth of the packaging bag 142. It is made to open by.

  As shown in FIG. 6, the operation mechanism 130 has a substantially rectangular moving frame 131 that slides on the guide member 104, and a link that is attached to the moving frame 131 and moves the bag holder 120 to a predetermined position. The moving frame 131 has a predetermined length, a bottom frame piece 131a fixed to the slider 137, and a side edge erected at right angles from both ends of the bottom frame piece 131a. It has frame pieces 131c and 131d, and upper side frame pieces 131b that connect the tops of these side frame pieces 131c and 131d, forming a frame-like frame. The bottom frame piece 131a has substantially the same length as the upper frame piece 131b, and is fixed to the slider 137, so that the operation mechanism 130 is slidable. That is, both side ends of the slider 137 are fitted into the U-shaped groove of the guide member 104 so that the slider 137 can slide on the guide member 104. In order to move the slider 137 smoothly, a bearing or the like is used. It is more preferable to use a sliding mechanism using.

  Each of the side frame pieces 131c and 131d includes a pair of frame pieces, and these frame pieces are attached to the bottom frame piece 131a so as to face each other at a predetermined interval. The upper side frame piece 131b also includes a pair of frame pieces, and is attached to the end portions of the side side frame pieces 131c and 131d so as to face each other at a predetermined interval. Therefore, the side frame pieces 131c and 131d and the upper side frame piece 131b are connected to the bottom side frame piece 131a by a pair of frame pieces with a predetermined gap. In addition, a regulating member 133 made of a plate-like body is provided at the upper end of the side frame piece 131c, that is, at a location close to the upper side frame piece 131b.

A link mechanism 132 is attached to the upper frame piece 131b. The link mechanism 132 is shaped pair of movable piece 134a of the bent portion is pivotally supported 134 ₀ at predetermined intervals in the upper frame piece 131b substantially L, and 134b, these movable piece 134a , it is composed of a connecting piece 135 rotatably respectively pivotally supported 134 ₁ to the lower end of the 134b, a so-called parallel link (hereinafter, the parallel link that the first parallel link) to form a. The connecting piece 135 is one end of the operation lever 136.
These movable piece 134a, 134b is the shaft support 134 ₀ than the lower length each side frame pieces 131c, has become shorter than the 131d length and, in the above the shaft support 134 ₀ tip 139a 139b is connected to each arm 122a, 122b of the bag holder 130. The distal ends 139a and 139b and the arms 122a and 122b are preferably coupled using a detachable coupling member. As this coupling member, for example, a tubular body is fixed to each of the front end portions 139a and 139b, and the coupling member is inserted into each of the arms 122a and 122b. By using such a detachable connection, various types of bag holders having different ring diameters can be exchanged and used.

Next, regarding the method of coupling the movable pieces 134a and 134b and the bag holders 120 of different sizes, the mounting positions of the shaft support portions 134 ₀ and 134 ₁ of the one movable piece 134b are attached to the upper side frame piece 131b and the connecting piece 135. a plurality of mounting holes 134 _n are provided so as to be appropriately changed. When attaching the bag holders 120 of different sizes, the movable piece 134b is set so that the diameter R of the annular rings 121a to 121n of the bag holder 120 and the axial support intervals of the two movable pieces 134a and 134b are the same. This is done by appropriately changing the mounting position.

  Therefore, when the operation lever 136 is farthest from the pedestal 102, the first parallel link 132 has an upper frame piece 131b, a pair of movable pieces 134a and 134b, and a connecting piece 135 as shown in FIG. Thus, a parallelogram inclined to the right side of the figure is formed. From this state, when the operation mechanism 130 is moved to the pedestal 102 side by the slider 137 and then the operation lever 136 is pushed into the pedestal 102 side, the parallelogram of the link mechanism 132 is clockwise while maintaining the quadrilateral shape. To become a parallelogram inclined to the left side of the figure. By this movement, the pair of arms 122a and 122b of the bag holder 120 coupled to the connecting member of the movable pieces 134a and 134b rises from the horizontal direction and becomes an upright state. And the side wall surface of the movable piece 134a is contact | abutted to the control member 133, and a pair of arms 122a and 122b are maintained in the upright state.

  As shown in FIG. 7, the bag holder 120 includes a plurality of annular rings 121a to 121n having a predetermined size and a pair of arms 122a and 122b to which these annular rings 121a to 121n are attached. .

  The annular rings 121a to 121n are annular rings having a diameter slightly shorter than the opening diameter of the packaging bag, and are manufactured by bending a metal rod having a predetermined thickness into a circle. Moreover, each arm 122a, 122b is the same length, respectively, The length is longer than the length of the longitudinal direction of a packaging bag, and consists of a rod-shaped body which is narrow and has predetermined | prescribed thickness. A pair of arms 122a and 122b made of this rod-shaped body are formed with a plurality of through holes 123a to 123n and 123a 'to 123n' at least as many as the number of rings at equal intervals from one end to the other end. Furthermore, it can be divided along a line passing through the central part of the through holes 123a to 123n and 123a ′ to 123n ′. Each through-hole 123a-123n, 123a'-123n 'is formed in a rod-like body, is formed in a slightly larger diameter than the diameter of the annular rings 121a-121n, and when these annular holes are sandwiched between these annular holes, The ring can freely rotate in the through hole.

  The annular rings 121a to 121n are connected to the first and second arms 122a and 122b by sandwiching the annular rings 121a to 121n at the divided portions provided at the centers of the arms 122a and 122b. Is arranged in each of the through holes 123a to 123n and 123a ′ to 123n ′. The length L of the first and second arms 122a and 122b can be appropriately changed in proportion to the diameter R of the annular rings 121a to 121n to be attached, and one end of each arm 122a and 122b is attached to the movable pieces 134a and 134b, respectively. It is designed to be connected. Further, the intervals between the through holes 123a to 123n and 123a ′ to 123n ′ provided in the pair of arms 122a and 122b are penetrating at positions close to one end attached to the tip portions 139a and 139b of the movable pieces 134a and 134b. It is preferable that the distance between the holes is relatively wide, and that the distance between the through holes at positions close to the other end facing the one end is relatively narrow, and the through holes 123a to 123a formed in this way are formed. The annular rings 121a to 121n attached to 123n and 123a 'to 123n' are closely arranged in the vicinity of the opening into which the article to be packaged is charged, and the intervals gradually increase as the distance from the opening increases. Since the annular rings 121a to 121n are arranged in this way, a part of the packaging bag can be a gap between the annular rings 121a to 121n when the object to be packaged is pushed into the packaging bag held by the bag holder 120. Since it is possible to prevent the cable from being caught in the bag or from being brought into contact with each other, the packaging operation can be performed more smoothly.

The assembled bag holder 120 moves the pair of arms 122a and 122b to opposing positions on the outer periphery of the annular rings 121a to 121n, that is, puts the arms 122a and 122b in front of the movable pieces 134a and 134b in a parallel state. 139a and 139b.
As a result of this connection, the pair of arms 122a and 122b face each other in parallel with a predetermined interval when standing vertically, and each of the annular rings 121a to 121n is horizontally arranged in a plurality of stages. It is attached to 122a and 122b. Subsequently, the horizontal state of the annular rings 121a to 121n is maintained and moved even when tilted from the standing state to the horizontal state. That is, the arms 122a and 122b, the annular ring 121a (to 121n), and the upper side frame piece 131b form a parallel link (hereinafter referred to as a second parallel link).

  The bag holder 120 forming such a second parallel link is shown in FIG. 5 when the arms 122a and 122b are coupled to the front end portions 139a and 139b of the movable pieces 134a and 134b and fall down in the horizontal direction. Thus, the plurality of annular rings 121a to 121n also fall in the horizontal direction, and when each arm is raised, as shown in FIG. 121a to 121n are lifted upward while maintaining a horizontal state, and in a state where the arms 122a and 122b are upright, the annular rings 121a to 121n are superposed in multiple stages at predetermined intervals in the horizontal direction. Become. Therefore, if the annular ring is inserted into the bag mouth of the packaging bag in a state where the annular ring is tilted in the horizontal direction, the bag mouth does not need to be opened larger than the diameter of the annular ring and can be easily inserted. The annular ring is not necessarily limited to a circle, and the number thereof may be one.

As shown in FIG. 5, the bag support 140 is composed of a flat plate 141 corresponding to the size of the bag so that a plurality of packaging bags 142 can be stacked and mounted. A pair of projecting pins 143a and 143b are provided to secure the. The packaging bag 142 is attached to the plate body 141 by inserting the holes attached to the upper portion thereof into the projecting pins 143a and 143b. In addition, a holding plate 145 that holds the end of the packaging bag 142 is attached to the end provided with the pair of protruding pins 143a and 143b. By providing the pressing plate 145, when air is blown from the blower 111 to the bag mouth of the packaging bag 142, among the plurality of packaging bags 142 stacked by the pressing plate 145, the uppermost packaging bag 142. Only the uppermost packaging bag 142 can be always inflated by pressing the end.
The bag support 140 can be detachably mounted on the mounting table. Therefore, replacement of the bag support 140 is facilitated, and if a plurality of bag supports corresponding to the size of the packaging bag are prepared, the optimum one is selected according to the type and size of the package. become able to.

  In addition, an exhaust port 112 of the air duct is disposed at an end of the plate body 141. The exhaust port 112 has an elongated shape and has substantially the same length as the width of the packaging bag, and is directed toward the bag port. The air duct has a predetermined length, and connects the exhaust port 112 and the air blower 111.

The packaging bag 142 has a hole inserted at one end of the pair of protruding pins 143a and 143b and locked, and a bag mouth, and is formed of a flexible material such as a plastic film.
Moreover, when using what printed the illustration or manufacturer of the to-be-packaged goods in this packaging bag 142, these printings are located in a bag. The reason is that the packaging bag is attached to the bag holder upside down and the article to be packaged is inserted from the bottom, so that the bag is turned over when the packaging of the article to be packaged is completed.

Next, the usage of this packaging machine is demonstrated with reference to FIGS.
8 is a side view showing a process of inserting the bag holder into the packaging bag in the packaging machine of Example 2, and FIG. 9 is a side view showing a process of inserting the bag holder into the packaging bag and raising the holder upright. FIG. 10 is a side view showing a process of putting an article to be packed into a packaging bag placed on a bag holder. In FIG. 9 and FIG. 10, the column 104 a located on the near side is partially omitted for easy understanding of details.
First, a plurality of packaging bags 142 are attached to the bag support 140. For this attachment, as shown in FIG. 5, the holes of each packaging bag are inserted into the projecting pins 143a and 143b and fixed. And the bag support body 140 which attached the several packaging bag 142 is mounted and fixed on a mounting base (refer Fig.8 (a)).
On the other hand, the operation lever 136 is pulled away from the base 102. In this state, the arms 122a and 122b and the plurality of annular rings 121a to 121n of the bag holder 120 are in a state of falling down in the horizontal direction. Further, in this state, the link mechanism 132 coupled to the movable frame 131 is lowered to the right by the upper side frame piece 131b, the pair of movable pieces 134a and 134b, and the connecting piece 135, as shown in FIG. It is an inclined parallelogram.

  Next, the blower 111 which is the opening mechanism 110 is operated to blow air to the bag mouth of the packaging bag 142 to open the bag mouth. The blower 111 is activated by turning on an activation switch (not shown) when the packaging machine 101 is used. Note that the activation control of the blower 111 may be provided with a switch linked to the operation mechanism 130 so as to be turned on / off linked to the movement of the operation lever 136.

  When the bag opening of the uppermost packaging bag of the stacked packaging bags 142 is opened by this air blowing, the operation mechanism 130 is pushed in the direction of the pedestal 102, and the bag holder 120 coupled to the movable frame 131. The first and second arms 122a and 122b and the annular rings 121a to 121n are inserted into the bag mouth. At this time, since the pair of arms 122a and 122b and the annular rings 121a to 121n are tilted in the horizontal direction, the area of the surface to be inserted is small and can be reliably inserted into the bag mouth (see FIG. 8B). ).

When the operation mechanism 130 is further pushed in, the tip of the slider 137 collides with the stopper 104c of the guide member 104, and the movement of the slider 137 is stopped. When the operation lever 136 is further pushed in the direction of the base 102, the movable pieces 134a and 134b are rotated. Due to the rotation of the movable pieces 134a and 134b, the first parallel link 132 is substantially a parallelogram inclined downward to the right as shown in FIGS. 6 (a) and 6 (b). The second parallel link consisting of a pair of arms 122a, 122b and the like is deformed from the horizontal direction as shown in FIG. 9 (a). The plurality of annular rings 121a to 121n starts to stand up and follow this, and is lifted upward with the packaging bag 142 attached while maintaining the horizontal state. Thereafter, the lower side surface of the movable piece 134a is brought into contact with the stopper 133, and both arms are maintained in a vertically upright state (see FIGS. 6B and 9B).
When both arms 122a and 122b stand upright, the plurality of annular rings 121a to 121n are superposed in multiple stages at equal intervals in the horizontal direction, as shown in FIG. 9B. 121a-121n is attached with the packaging bag 142 upside down with the bottom on top.
Thereafter, an article to be packaged, for example, several eggplants, is pushed into the annular rings 121a to 121n from the bottom of the packaging bag 142 covered with the annular rings 121a to 121n (see FIG. 10A), and the eggplants that have been pushed in. Descends with its weight and is taken out from between each of the rings 121a to 121n. Thereafter, the bag mouth of the packaging bag is sealed with tape or the like. This operation is repeated thereafter.

  According to the packaging machine using the packaging auxiliary tool of the above-described second embodiment, the bag holder includes an annular ring of a predetermined size and a pair of first and first shafts that are respectively supported on the outer periphery of the annular ring. Since it is composed of two arms, it does not require a mold for molding as in the conventional holding frame, and can be manufactured easily and inexpensively. For this reason, since a large number of bag holders having different sizes can be easily manufactured, various types of bag holders that can be applied to a wide range of articles to be packaged according to the size of the article to be packaged can be provided at low cost. In addition, since the annular ring of this bag holder is inserted into the bag mouth in a state of being collapsed in the horizontal direction when inserted into the bag mouth of the packaging bag, the insertion into the bag mouth is ensured, and the packaging bag caused by an insertion error Loss disappears.

  In addition, the operation lever is pushed down to follow the upright standing of both arms of the bag holder, and the annular ring is lifted while maintaining the horizontal state. In this horizontal state, the packaging bag is covered with the bottom up. By pushing and inserting the article to be packaged from the bottom of the bag, the article to be packaged can be smoothly introduced without contacting the annular ring. Furthermore, since this packaging machine can manufacture a bag holder simply and inexpensively, it can provide a packaging machine applicable to a wide range of packages depending on the size of the package.

FIG. 1 is a perspective view in which a packaging aid according to Embodiment 1 of the present invention is used in a packaging machine, FIG. 2 is a perspective view showing a hopper of the packaging machine of FIG. 3 shows a bag holder and a packaging bag, FIG. 3 (a) is a perspective view of the bag holder, and FIG. 3 (b) is a perspective view of a packaging bag suspended from the holder, FIG. 4 is an operation explanatory view of the packaging machine of FIG. FIG. 5 is an external perspective view of the packaging aid according to the second embodiment of the present invention used in a packaging machine, 6 is an external perspective view showing an operation mechanism of the packaging machine of FIG. 7 is an external perspective view showing the bag holder of the packaging machine of FIG. FIG. 8 is a side view showing a process of inserting the bag holder into the packaging bag in the packaging machine using the packaging auxiliary tool of Example 2. FIG. 9 is a side view showing a process of inserting the bag holder into the packaging bag in the packaging machine using the packaging auxiliary tool of Example 2 and raising the holder upright; FIG. 10 is a side view showing a process of putting an article to be packed into a packaging bag placed on a bag holder in a packaging machine using the packaging auxiliary tool of Example 2. FIG. 11 is a diagram showing a prior art packaging machine, FIG. 12 is a side view of a conventional packaging machine, FIG. 13 is a perspective view showing a holding frame of the packaging machine of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Packing machine 2 Base 3, 4 Support | pillar 6 Stopper 10 Hopper 11 1st arm 12 2nd arm 13a-13n Annular ring 14 Rod-shaped body 15 Guide member 20 Operation mechanism 21 Operation lever 22 First action lever 23 Second action lever 30 Hopper introduction mechanism 31 Guide member 32 Guide rod 34 Hopper support arm 40 Bag opening mechanism 46 Adhesive member 48 Bag support 50 Bag holder 53 Packaging bag 101 Packaging machine 102 Base 104 Guide member 110 Opening mechanism 120 Bag holder 130 Operating mechanism 131 Moving frame 134a, 134b Movable piece 135 Connecting piece 136 Operation lever 137 Slider 140 Bag support

Claims (10)

In a packaging auxiliary tool comprising a hopper for loading an article to be packaged, and an elevating mechanism for moving the hopper up and down,
The hopper includes an annular ring having a predetermined diameter, and a pair of first and second arms that rotatably pinch a part of the outer periphery of the annular ring.
A plurality of the annular rings are provided, a plurality of annular rings are sandwiched between the upper portions of the first and second arms, and a plurality of annular rings are sandwiched between the lower portions.
The first arm is fixed to the elevating mechanism, the second arm is provided with a lowering restricting member and is suspended opposite to the first arm, and when the first arm is pulled up by the elevating mechanism, the second arm is The arm is moved close to the first arm, the annular ring is suspended and moved upward so as to be inserted into the bag mouth of the packaging bag, and then the hopper is lowered by the lifting mechanism. In this case, the lowering of the second arm is stopped by the lowering restricting member, and the annular ring is held in a horizontal state in the packaging bag.   2. The packaging aid according to claim 1, wherein the annular ring has a circular shape, an elliptical shape, or a polygonal shape.   The first and second arms sandwich a plurality of the annular rings, and when the annular ring connecting both arms is in a suspended state, the lower end of the first arm or the second arm is the first The packaging auxiliary tool according to claim 1, wherein the packaging auxiliary tool extends downward from the lower end of the two arms or the first arm by a predetermined length.   The said 1st, 2nd arm is formed so that the length of a lower end part may become the same when the said annular ring which connects both arms is a horizontal state. The packaging aid described.   The packaging aid according to claim 1, wherein the hopper is attached to the elevating mechanism by a detachable coupling means.   2. The packaging auxiliary according to claim 1, wherein the hopper is provided with a guide member that guides the introduction of an article to be packaged at a position close to the annular ring located at the uppermost position of the annular ring. Ingredients. In a packaging auxiliary tool comprising a bag holder inserted into a packaging bag and holding the packaging bag, and an operation mechanism for moving the bag holder to a predetermined position,
The bag holder includes an annular ring having a predetermined diameter and a pair of first and second arms that rotatably pinch a part of the outer periphery of the annular ring. The first and second arms are When the first and second arms are moved in the horizontal direction by the operation mechanism, the annular ring is moved close to the operation mechanism. The gap between the first and second arms is gradually increased when the first and second arms are erected at a predetermined angle by the operation mechanism. A packaging aid, which is expanded and holds the annular ring in a horizontal state when each arm stands up. The bag holder includes a plurality of annular rings, and the annular rings have a wide interval between the annular rings of the first and second arms attached to the operation mechanism, and the annular ring at the other end. The packaging aid according to claim 7 , wherein the gap is sandwiched between them. The bag retainer packaging aid according to claim 7, characterized in that it is coupled by a universal coupling means removably attached to said operating mechanism. Said annular ring, packaging aid according to claim 7, characterized in that has a circular or elliptical shape.

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