JP4464286B2 - Packaging machine - Google Patents

Description

  The present invention relates to a packaging machine provided with a bag holder, and more specifically, a bag holder that can be easily inserted into a bag mouth of a flexible packaging bag such as a plastic film, and holds the packaging bag by this holder. The present invention relates to a packaging machine that can efficiently pack various items to be packaged such as vegetables, fruits, and flowers.

Vegetables such as eggplant, cucumber, and spinach, or fruits such as apples, pears, and grapes sold in supermarkets, etc. are packaged in a transparent plastic film packaging bag and displayed on a product shelf. The bagging of these vegetables is carried out in the process from being collected by the producer to being delivered to a supermarket or the like.
For example, about 3-5 pieces of eggplant, cucumber, etc., about 3-6 pieces of peppers, potatoes, onions, etc., and about 3-4 pieces of apples, strawberries, etc. are put in a plastic film packaging bag. The upper part is bound with an adhesive tape or heat-sealed.
These packaging operations are performed manually when the amount of vegetables, fruits, etc. to be packaged is small, but a packaging machine is used where the amount is large.

The applicant has been working on the development and commercialization of this type of packaging machine for many years, has applied for a patent for the result, and has obtained a patent (for example, see Patent Documents 1 and 2 below).
FIG. 12 is a side view showing an operating state of the packaging machine disclosed in Patent Document 1 below, and FIG. 13 is an external perspective view showing a holding frame of the packaging machine.
In the packaging machine 50, a rotating body 53 is pivotally supported on a support column 52 erected on a base material 51, three L-shaped arms 54 are attached to the rotating body 53, and an opening through which an article to be packaged can pass is provided. Each holding frame 55 is attached to each arm 54.
This packaging machine 50 attaches the packaging bag 56 to the holding frame 55 by rotating the holding frame 55 at the tip of the arm 54 together with the rotating body 53 in the counterclockwise direction, and then further holds the holding frame 55 in the opposite 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 56 is performed. That is, the packaging bag 56 is attached to the holding frame 55 when the holding frame 55 passes through the attaching means provided below the rotating body 53, and then the holding frame 55 is rotated to the upper right position. The holding frame 55 is locked by a click mechanism and is moved, and an article to be packaged is put into the attached packaging bag 56.

Further, as shown in FIG. 13, the holding frame 55 has a lower outer peripheral surface 55a of the holding frame 55 parallel to the axis C direction of the holding frame 55, and an upper outer peripheral surface continuous with the lower outer peripheral surface 55a. A configuration in which the inclined surface 55b is inclined toward the axis C, and the upper inner peripheral surface of the holding frame 55 is a continuous convex curved surface having no inflection points smoothly curved downward from the upper edge of the inclined surface 55b. It has become. Reference numeral 55c is a guard member.
When the lower outer peripheral surface 55a of the holding frame 55 is a surface parallel to the axis C direction and the inclined surface 55b is formed continuously therewith, the general shape of the entire outer peripheral surface of the holding frame 55 becomes a shape that narrows upward. For this reason, when the packaging bag 56 is attached to the holding frame 55 by the attaching means, the attachment can be performed easily and reliably.

  Further, the packaging machine disclosed in the following Patent Document 2 is also the same as the packaging machine 50 described above, and can cover the packaging bag with the bottom portion up, while the packaging bag containing the packaged item slides. A packaging bag holding frame having a passable opening is attached to the tip of an arm, and this arm is supported on a support column so as to be rotatable in a vertical plane. And this packaging machine also covers a packaging bag automatically on a holding frame by rotating a holding frame.

Japanese Patent No. 2883843 (FIG. 1, paragraphs [0052] to [0054]) Japanese Patent No. 2928746 (FIG. 1, paragraphs [0016] to [0022])

According to the packaging machine disclosed in Patent Document 1 above, a rotating body is pivotally supported on a column erected on a base material, three L-shaped arms are attached to the rotating body, and further an article to be packaged can pass through. By attaching a holding frame having an opening to each arm and rotating the rotating body in the counterclockwise direction, the packaging bag is attached to the holding frame. And the efficiency of the packaging work can be greatly improved.
Since this packaging machine has the above advantages, it is widely used for packaging various vegetables and fruits. However, with the expansion of this application, some improvements have been requested from users who have been used for many years.

  One of them is that since the type (size) of the holding frame is limited, it is difficult to pack the bag depending on the type, size, amount, and the like of the package. This can be solved by preparing various types of holding frames of different sizes. However, since this holding frame is manufactured by integral molding with a plastic material as shown in FIG. 13, it is necessary to make a new mold for each size in order to manufacture holding frames of different sizes. If a holding frame of a kind is prepared, the manufacturing cost for making this mold is required, which increases the burden on the user and is difficult to realize.

  As another problem, since the insertion part of the holding frame of the jiu jitsu has a circular cylindrical shape, when the opening mechanism of the bag opening is performed by blowing air, the bag opening is circular in the holding frame. It must be expanded to a size that allows the cylindrical outer shape 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 will cause loss of the packaging bag. This problem also applies to the packaging machine disclosed in Patent Document 2.

  Therefore, the present invention is to improve the packaging machine, and the object of the present invention is to hold a packaging bag using a bag holder that can be easily inserted into a bag mouth of a flexible packaging bag such as a plastic film. It is another object of the present invention to provide a packaging machine that can easily pack an article to be packaged.

  Another object of the present invention is to provide a packaging machine that can be manufactured at a low cost even when manufacturing holding frames of different sizes, and that can use holding frames of different sizes.

In order to achieve the above object, the packaging machine according to claim 1 includes a bag support on which a plurality of packaging bags are mounted, a bag opening mechanism that opens a bag opening of the packaging bag, and the opening mechanism. A bag holder that is inserted into the bag mouth opened to hold the packaging bag in an opened state, an operation mechanism for inserting the bag holder into the bag mouth and moving the bag holder, and the operation A pedestal for holding the mechanism slidably in the horizontal direction,
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. A frame piece that is rotatably fixed with the second arm facing it, an operation lever that is attached to the first and second arms and operates the first and second arms, and a slider that moves the frame piece And consist of
The annular ring, the frame piece, and the first and second arms form a parallel link, and the operating mechanism is moved to the pedestal side by the slider in a state where the first and second arms are tilted, and the bag holder Is inserted into the packaging bag, and then the first and second arms are raised by the operation lever and lifted with the packaging bag attached to the annular ring. It is characterized by being ready for insertion. The annular ring described here is not limited to a circular ring, and may be an elliptical ring, for example.

  The invention according to claim 2 is related to the packaging machine according to claim 1, wherein the bag holder includes a plurality of annular rings, and the annular rings are sandwiched between the pair of arms at equal intervals. It is characterized by being.

  According to a third aspect of the present invention, there is provided the packaging machine according to the first or second aspect, wherein the bag holder is coupled to the operation mechanism by a detachable coupling means.

The packaging machine according to claim 4 is inserted into a bag support having a plurality of packaging bags mounted thereon, a bag opening mechanism for opening a bag opening of the packaging bag, and a bag opening opened by the opening mechanism. A bag holder for holding the packaging bag in an open state, an operation mechanism for inserting the bag holder into the bag mouth and moving the bag holder, and the operation mechanism being slidable in the horizontal direction A packaging machine comprising a pedestal to hold,
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. A frame piece fixed to be rotatable with the second arm opposed, a contact member provided at one end of the frame piece, a stopper attached to the pedestal and capable of contacting the contact member, It consists of a slider that moves the frame piece,
The annular ring, the frame piece, and the first and second arms form a parallel link, and the operating mechanism is moved to the pedestal side by the slider in a state where the first and second arms are tilted, and the bag holder Is inserted into the packaging bag, and when the bag holder is inserted to a predetermined position in the packaging bag, the slider is further moved to the pedestal side to bring the abutting member and the stopper into contact with each other. Thus, the first and second arms are raised and lifted while the packaging bag is attached to the annular ring, so that a packaged item can be inserted into the packaging bag.

  The invention according to claim 5 is related to the packaging machine according to claim 4, wherein the bag holder is provided with a plurality of annular rings, and these annular rings are sandwiched between the pair of arms at equal intervals. It is characterized by being.

  According to a sixth aspect of the present invention, there is provided the packaging machine according to the fourth or fifth aspect, wherein the bag holder is coupled to the operation mechanism by a detachable coupling means.

  The invention according to claim 7 is related to the packaging machine according to claim 4, wherein the operation mechanism further includes a first restriction member that supports the first and second arms in a horizontal state, and the first And a second restricting member that supports the second arm in a vertical state.

  The invention according to claim 8 is related to the packaging machine according to claim 4, wherein the contact member is formed of a plate-like body inclined downward from the pedestal side, and the stopper is a pair standing up from the pedestal. It is characterized by comprising a columnar body having both ends fixed to the column.

By providing the above-described configuration, the present invention has the following excellent effects. That is, according to the first aspect of the present invention, the bag holder 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. Thus, unlike the conventional holding frame, a mold for molding is unnecessary, and it 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. 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 easily and inexpensively, it can provide a packaging machine applicable to a wide range of packages depending on the size of the package.

  According to the invention of claim 2, in addition to the effect of claim 1, by using a plurality of annular rings, the packaging bag is held by the plurality of annular rings when the packaging bag is attached. The holding of the packaging bag is stabilized, and the package can be smoothly loaded.

  According to the invention of claim 3, the bag holder can be freely detached by coupling the bag holder to the operation mechanism by a detachable coupling means, and the bag holder having annular rings of different sizes. It becomes possible to select the most suitable holder according to the size of the article to be packaged.

According to the invention of claim 4, since the bag holder is composed of an annular ring of a predetermined size and a pair of first and second arms respectively supported on the outer periphery of the annular ring, Unlike the technology holding frame, it eliminates the need for a mold to be molded 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.
Furthermore, by pushing the operating mechanism, the bag holder can be inserted into the packaging bag and both arms can be lifted in one operation, and the usability is further improved.
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.

  Further, according to the invention of claim 5, in addition to the effect of claim 4, by using a plurality of annular rings, when the packaging bag is attached, the packaging bag is held by the plurality of annular rings. The holding of the packaging bag is stabilized, and the package can be smoothly loaded.

  According to the invention of claim 6, the bag holder can be freely detached by coupling the bag holder to the operation mechanism by a detachable coupling means, and the bag holder having annular rings of different sizes. It becomes possible to select the most suitable holder according to the size of the article to be packaged.

  According to the invention of claim 7, by providing the first and second regulating members for maintaining the first and second arms in a horizontal or vertical state, the state of the arms can be stably maintained, and the user can The arm can be moved accurately by simply sliding the operation mechanism.

  According to the invention of claim 8, the abutting member is an inclined plate-like body and the stopper is a columnar body, so that the arm can be lifted smoothly without using a complicated member. become.

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

1 is an external perspective view showing a packaging machine according to Embodiment 1 of the present invention, FIG. 2 is an external perspective view showing an operation mechanism of the packaging machine of FIG. 1, and FIG. 4 is a bag holder of the packaging machine of FIG. It is an external perspective view.
As shown in FIG. 1, the packaging machine 1 includes a bag support 40 on which a plurality of packaging bags are mounted, and an opening mechanism 10 that opens a bag mouth of the packaging bag mounted on the bag support (see FIG. 4). ), A bag holder 20 that is inserted into the bag mouth opened by the opening mechanism and holds the packaging bag, and an operation mechanism 30 that inserts the bag holder into the packaging bag and moves it to a predetermined position. The mechanism 30 has a configuration that is movably attached to the base 2.

The pedestal 2 is composed of a rectangular frame frame 3 having a predetermined size. The frame 3 has long side frame pieces 3a and 3b and short side frame pieces 3c and 3d which face each other. The frame pieces 3a to 3d are connected at the end portions to form a rectangular frame shape.
The short side frame pieces 3 c and 3 d are longer than the diameter of the annular rings 21 a to 21 n constituting the bag holder 30, and the long side frame pieces 3 a and 3 b are a pair of first pieces constituting the bag holder 30. The lengths of the second arms 22a and 22b are longer than the length of the second arms 22a and 22b. Further, in each of the long side frame pieces 3a and 3b, small columns 5a to 5d that are slightly shorter than the columns 4a and 4b in the central portion are respectively positioned adjacent to the columns 4a and 4b and close to the short side frame pieces 3c. It is erected. The small struts 5 a to 5 d are coupled to each other with a connecting piece to form a small frame, and the small frame is a mounting table for the bag support 40. In addition, although the code | symbol 5b, 5d is provided in the long side frame piece 3b, it is under the bag support body 40 and is hidden in FIG.

  Further, a guide member 4 is attached to the frame 3 between the opposing short side frame pieces 3c and 3d. The guide member 4 has substantially the same length as the long side frame pieces 3a and 3b and a predetermined width length. Both end portions are fixed to the center portions of the opposing short side frame pieces 3c and 3d, respectively. Furthermore, U-shaped grooves are formed in both width portions, and the slider 37 of the operating mechanism can slide in these grooves. Further, the guide member 4 has a stopper 4c that restricts sliding of the slider 37 by closing an end portion attached to the short side frame piece 3c (see FIG. 4).

  The opening mechanism 10 includes a blower 11 for supplying air to the bag mouth, a duct for guiding the air of the blower 11 to the vicinity of the bag mouth, and an exhaust port 12, and supplies air to the bag mouth of the packaging bag 42. It is made to open by.

  As shown in FIG. 2, the operation mechanism 30 includes a substantially rectangular moving frame 31 that slides on the guide member 4, and a link that is attached to the moving frame 31 and moves the bag holder 20 to a predetermined position. The moving frame 31 has a predetermined length, a bottom frame piece 31a fixed to the slider 37, and a side edge erected at right angles from both ends of the bottom frame piece 31a. It has frame pieces 31c and 31d and upper side frame pieces 31b that connect the tops of these side frame pieces 31c and 31d to form a frame-like frame. The bottom frame piece 31a has substantially the same length as the upper frame piece 31b, and is fixed to the slider 37, so that the operation mechanism 30 is slidable. That is, both side ends of the slider 37 are fitted into U-shaped grooves of the guide member 4 so as to be able to slide on the guide member 4. In order to move the slider 37 smoothly, a bearing or the like is used. It is more preferable to use a sliding mechanism using.

  Each of the side frame pieces 31c and 31d includes a pair of frame pieces, and these frame pieces are attached to the bottom frame piece 31a so as to face each other at a predetermined interval. The upper side frame piece 31b is also composed of a pair of frame pieces, and is attached to the end portions of the side side frame pieces 31c and 31d so as to face each other with a predetermined interval. Accordingly, the side frame pieces 31c and 31d and the upper side frame piece 31b are connected to the bottom side frame piece 31a by a pair of frame pieces with a predetermined gap. Further, a regulating member 33 made of a plate-like body is provided at the upper end of the side frame piece 31c, that is, at a location close to the upper side frame piece 31b.

A link mechanism 32 is attached to the upper side frame piece 31b. The link mechanism 32 is shaped pair of movable pieces 34a of the bent portion is pivotally supported 34 ₀ at predetermined intervals in the upper frame piece 31b substantially L, and 34b, these movable pieces 34a , it is composed of a connecting piece 35 which is rotatably respectively pivotally supported 34 ₁ to the lower end of 34b, a so-called parallel link (hereinafter, the parallel link that the first parallel link) to form a. The connecting piece 35 is one end of the operation lever 36.
These movable pieces 34a, 34b are shaft support 34 ₀ than the lower length each side frame pieces 31c, has become shorter than the 31d length and, in the above the shaft support 34 ₀ tip 39a , 39b are connected to the arms 22a, 22b of the bag holder 30. The distal end portions 39a and 39b and the arms 22a and 22b are preferably coupled using a detachable coupling member. The coupling member is, for example, an insertion coupling in which a cylindrical body is fixed to each of the tip portions 39a and 39b and each arm 22a and 22b is inserted. By using such a detachable connection, various types of bag holders having different ring diameters can be exchanged and used.

Next, with respect to a method of coupling the movable pieces 34a and 34b and the bag holders 20 of different sizes, the mounting positions of the shaft support portions 34 ₀ and 34 ₁ of one movable piece 34b are attached to the upper frame piece 31b and the connecting piece 35. A plurality of mounting holes _34n are provided so that the length can be changed as appropriate. When attaching the bag holders 20 of different sizes, the movable piece 34b so that the diameter R of the annular rings 21a to 21n of the bag holder 20 and the axial support interval of both the movable pieces 34a, 34b are the same. This is done by appropriately changing the mounting position.

  Accordingly, when the operation lever 36 is farthest from the pedestal 2, the first parallel link 32 has an upper frame piece 31 b, a pair of movable pieces 34 a and 34 b, and a connecting piece 35 as shown in FIG. Thus, a parallelogram inclined to the right side of the figure is formed. From this state, when the operation mechanism 30 is moved to the pedestal 2 side by the slider 37 and then the operation lever 36 is pushed to the pedestal 2 side, the parallelogram of the link mechanism 32 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 22a and 22b of the bag holder 20 coupled to the connecting members of the movable pieces 34a and 34b rises from the horizontal direction and becomes an upright state. And the side wall surface of the movable piece 34a is contact | abutted by the control member 33, and a pair of arms 22a and 22b are maintained in the upright state.

  As shown in FIG. 3, the bag holder 20 includes a plurality of annular rings 21a to 21n having a predetermined size, and a pair of arms 22a and 22b to which these annular rings 21a to 21n are attached. .

  The annular rings 21a to 21n 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 22a, 22b 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 22a and 22b made of this rod-like body are formed with a plurality of through holes 23a to 23n and 23a 'to 23n' 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 center of the through holes 23a to 23n and 23a 'to 23n'. Each of the through holes 23a to 23n and 23a 'to 23n' is formed in a rod-like body and has a diameter slightly larger than the diameter of the annular rings 21a to 21n. When the annular ring is inserted into these through holes, The ring can freely rotate in the through hole.

  The annular rings 21a to 21n are connected to the first and second arms 22a and 22b by sandwiching the annular rings 21a to 21n at the divided portions provided at the centers of the arms 22a and 22b. Is arranged in each of the through holes 23a to 23n and 23a 'to 23n'. The length L of the first and second arms 22a and 22b can be appropriately changed in proportion to the diameter R of the annular rings 21a to 21n to be attached, and one end of each arm 22a and 22b is attached to the movable pieces 34a and 34b, respectively. It is designed to be connected.

The assembled bag holder 20 moves the pair of arms 22a and 22b to opposing positions on the outer periphery of the annular rings 21a to 21n, that is, puts the arms 22a and 22b in the parallel state so that the distal ends of the movable pieces 34a and 34b. It couple | bonds with 39a, 39b.
As a result of this connection, the pair of arms 22a and 22b are opposed to each other in parallel with a predetermined interval when standing vertically, and each annular ring 21a to 21n is horizontally overlapped with each other in a plurality of stages. It is attached to 22a and 22b. Subsequently, the horizontal state of the annular rings 21a to 21n is maintained and moved even when it is tilted from the standing state to the horizontal state. That is, the arms 22a and 22b, the annular ring 21a (to 21n), and the upper side frame piece 31b form a parallel link (hereinafter referred to as a second parallel link).

The bag holder 20 forming such a second parallel link is shown in FIG. 1 when the arms 22a and 22b are coupled to the distal end portions 39a and 39b of the movable pieces 34a and 34b and fall down in the horizontal direction. Thus, the plurality of annular rings 21a to 21n are also in a state of falling down in the horizontal direction, and when each arm is erected, as shown in FIG. 21a to 21n are lifted upward while maintaining the horizontal state, and in a state where the arms 22a and 22b are upright, the annular rings 21a to 21n 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. 1, the bag support 40 includes a flat plate 41 corresponding to the size of the bag so that a plurality of packaging bags 42 can be stacked and mounted. A pair of projecting pins 43a and 43b are provided to secure the. The packaging bag 42 is attached to the plate body 41 by inserting the holes attached to the upper portion thereof into the projecting pins 43a and 43b. In addition, a holding plate 45 that holds the end of the packaging bag 42 is attached to the end provided with the pair of protruding pins 43a and 43b. By providing the pressing plate 45, when air is blown from the blower 11 to the bag mouth of the packaging bag 42, the uppermost packaging bag 42 among the plurality of packaging bags 42 stacked by the pressing plate 45 is provided. Only the uppermost packaging bag 42 can always be inflated by pressing the end.
The bag support 40 can be detachably mounted on the mounting table. Therefore, replacement of the bag support 40 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.

  Further, the exhaust port 12 of the air duct is disposed at the end of the plate body 41. The exhaust port 12 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 blower duct has a predetermined length and connects the exhaust port 12 and the blower 11.

The packaging bag 42 has a hole inserted through one pair of protruding pins 43a and 43b and locked at one end and a bag mouth, and is formed of a flexible material such as a plastic film.
Moreover, when using what printed the illustration of a to-be-packaged object, a manufacturer, etc. in this packaging bag 42, these printing shall be 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 method of this packaging machine is demonstrated with reference to FIGS.
4 is a side view showing a process of inserting the bag holder into the packaging bag in the packaging machine of Example 1, and FIG. 5 is a side view showing a process of inserting the bag holder into the packaging bag and raising the holder upright. FIG. 6 is a side view showing a process of putting an article to be packed into a packaging bag placed on a bag holder. In FIGS. 5 and 6, the column 4 a located on the front side is partially omitted for easy understanding of details.
First, a plurality of packaging bags 42 are attached to the bag support 40. In this attachment, as shown in FIG. 1, the holes of each packaging bag are inserted into the projecting pins 43a and 43b and fixed. And the bag support body 40 which attached the several packaging bag 42 is mounted and fixed on a mounting base (refer Fig.4 (a)).
On the other hand, the operation lever 36 is pulled away from the base 2. In this state, the arms 22a and 22b and the plurality of annular rings 21a to 21n of the bag holder 20 are in a state of falling in the horizontal direction. Further, in this state, the link mechanism 32 coupled to the movable frame body 31 is lowered to the right by the upper side frame piece 31b, the pair of movable pieces 34a and 34b, and the connecting piece 35 as shown in FIG. It is an inclined parallelogram.

  Next, the blower 11 as the opening mechanism 10 is operated to blow air to the bag mouth of the packaging bag 42 to open the bag mouth. The blower 11 is started by turning on a start switch (not shown) when the packaging machine 1 is used. It should be noted that the activation control of the blower 11 may be provided with a switch linked to the operation mechanism 30 and controlled to be turned on / off in conjunction with the movement of the operation lever 36.

  When the bag mouth of the uppermost packaging bag of the stacked packaging bags 42 is opened by this air blowing, the operating mechanism 30 is pushed in the direction of the base 2 and the bag holder 20 coupled to the movable frame 31 is pressed. The first and second arms 22a and 22b and the annular rings 21a to 21n are inserted into the bag mouth. At this time, since the pair of arms 22a and 22b and the annular rings 21a to 21n 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. 4B). ).

When the operating mechanism 30 is further pushed in, the tip of the slider 37 collides with the stopper 4c of the guide member 4, and the movement of the slider 37 is stopped. When the operation lever 36 is further pushed in the direction of the base 2, the movable pieces 34a and 34b are rotated. Due to the rotation of the movable pieces 34a and 34b, the first parallel link 32 is almost a parallelogram inclined downward to the right as shown in FIGS. 2 (a) and 2 (b). As shown in FIG. 5 (a), the second parallel link comprising the pair of arms 22a and 22b is deformed from the horizontal direction as a parallelogram that is inclined downwardly to the left through a regular quadrilateral. The plurality of annular rings 21a to 21n start to stand up and follow this, and are lifted upward while keeping the horizontal state and with the packaging bag 42 attached. Thereafter, the lower side surface of the movable piece 34a is brought into contact with the stopper 33, and both arms are maintained in a vertically upright state (see FIGS. 2B and 5B).
When both the arms 22a and 22b stand upright, the plurality of annular rings 21a to 21n are in a state of being polymerized in multiple stages at equal intervals in the horizontal direction, as shown in FIG. 5B. 21a-21n is attached to the packaging bag 42 upside down with the bottom on top.
Thereafter, an article to be packaged, for example, several eggplants is pushed into the annular rings 21a to 21n from the bottom of the packaging bag 42 covered with the annular rings 21a to 21n (see FIG. 6A), and the eggplants that have been pushed in. Descends with its weight and is taken out from between the rings 21a to 21n. 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 of Example 1 described above, the bag holder 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. Therefore, unlike the conventional holding frame, there is no need for a mold to be molded, and it 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.

  Next, another embodiment of the packaging machine of the present invention will be described below. FIG. 7 is an external perspective view showing the packaging machine of Example 2 of the present invention, and FIG. 8 is an external perspective view showing an operation mechanism of the packaging machine of FIG.

  The packaging machine 1A has the same configuration as the packaging machine 1, that is, a bag support 40 on which a plurality of packaging bags 42 are mounted, and an opening for opening a bag mouth of the packaging bag mounted on the bag support. The mechanism 10 and a bag holder 20 that is inserted into the bag opening opened by the opening mechanism 10 and holds the packaging bag, and the operation mechanism 30A has a configuration that is movably attached to the base 2. ing. The different configuration is in the link mechanism 32A of the operation mechanism 30A and related parts. Therefore, in the following description, the same reference numerals are given to the configurations of the common parts, the redundant description will be omitted by using the description, and only different configurations will be described in detail.

  The operation mechanism 30A has a link mechanism 32A as shown in FIG. 7, and the link mechanism 32A has a predetermined length and is connected to a slider 37 as shown in FIG. 35 ', a pair of substantially U-shaped movable pieces 34a' and 34b 'whose lower ends are fixed to the connecting piece 35' so as to be rotatable at a predetermined interval, and these movable pieces 34a 'and 34b And an upper frame piece 31b 'in which a bent portion of' is rotatably fixed at the same interval as the above interval. Similar to the link mechanism 32 of the packaging machine 1, the parallel link 32 </ b> A forms a parallel link by the upper frame piece 31 b ′, the connecting piece 35 ′, and the pair of movable pieces 34 a ′ and 34 b ′.

Each first, second movable piece 34a ', 34b', each lower end 'rotatably axially supported ₃₄ 1, 34 _1, also the bent portion is an upper frame piece 31b' connecting piece 35 pivotally supported on the 34 _0, 34 ₀ are. Further, 'the, one of the movable piece 34b' connecting piece 35 first pair of restricting the rotation of the second regulating member 39A, 39B are provided across the shaft support 34 _1. Of the first and second restricting members 39A and 39B, the first restricting member 39A is connected to the movable piece 34b ′ when the movable piece 34b ′ comes into contact as shown in FIG. 8A. The arm 22a is attached to the base member 35 'at a predetermined angle so that the arm 22a is maintained in a vertically upright state. The second restricting member 39B is similarly fixed to the bottom member 35 ′ so that the pair of arms 22a can be tilted to maintain a horizontal state.
Furthermore, an abutting member 38 that abuts against the stopper 6 provided on the pair of support columns 4a and 4b is provided at one end of the upper frame piece 31b ′. As shown in FIG. 7, the abutting member 38 is formed of a plate body inclined downward to the right, and the stopper 6 provided on the support columns 4a and 4b is formed of a cylinder whose both ends are fixed to the support columns.

  Next, the usage method of this packaging machine 1A is demonstrated. 9 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. 10 is a side view showing a process of inserting the bag holder into the packaging bag and raising the holder upright. FIG. 11 and FIG. 11 are side views showing the process of putting an article to be packed into a packaging bag placed on a bag holder. In FIG. 9B, FIG. 10 and FIG. 11, the support column 4a located on the front side is partially omitted for easy understanding of details.

First, a plurality of packaging bags 42 are attached to the bag support 40. In this attachment, as shown in FIG. 7, the holes of each packaging bag are inserted into the projecting pins 43a and 43b and fixed. The bag support 40 to which a plurality of packaging bags are attached is placed and fixed on the placing table (see FIG. 9A).
On the other hand, the operation mechanism 30 </ b> A is pulled away from the pedestal 2. At this time, the arms 22a and 22b and the plurality of annular rings 21a to 21n of the bag holder 20 are in a state of falling in the horizontal direction. In this state, the parallel link mechanism 32A has a parallelogram shape inclined downward to the right as shown in FIG.

  Next, the blower 11 as the opening mechanism 10 is operated to blow air to the bag mouth of the packaging bag 42 to open the bag mouth. The blower 11 is started by turning on a start switch (not shown) when the packaging machine 1 is used. Note that the start-up control of the blower may be provided with a switch linked to the operation mechanism 31 so as to perform on / off control in conjunction with the movement of the operation lever.

  When the bag mouth of the uppermost packaging bag of the stacked packaging bags 42 is opened by this air blowing, the operating mechanism 30A is pushed in the direction of the base 2 and the bags are coupled to the movable pieces 34a ′ and 34b ′. The first and second arms 22a and 22b and the annular rings 21a to 21n of the holder 20 are inserted into the bag mouth. At this time, since the pair of arms 22a and 22b and the annular rings 21a to 21n 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. 9B). ).

As the operation mechanism 30 is pushed in, the contact member 38 comes into contact with the stopper 6 provided on the columns 4a and 4b. When the pushing further proceeds, the pushing of the abutting member 38 is suppressed by the stopper 6, and as a result, the upper frame piece 31b 'moves in the direction of the first restricting member 39A in conjunction with the pushing, and accordingly the movable piece 34a 'and 34b' rotate. Due to the rotation of the movable pieces 34a 'and 34b', the parallel link 32A is substantially a parallelogram inclined downward to the right as shown in FIGS. 8 (a) and 8 (b). A parallel link that is deformed into a parallelogram inclined downwardly to the left through a regular quadrangle, and a parallel link including a pair of arms 22a and 22b, an annular ring 21a (˜21n), and an upper frame piece 31b ′ is shown in FIG. As shown to a), it begins to stand up from a horizontal direction, and following this, the some annular rings 21a-21n hold | maintain a horizontal state, and are lifted upwards with the packaging bag 42 attached (FIG. 10 ( b)). Thereafter, the lower side surface of the movable piece 34b ′ is brought into contact with the first restricting member 39A, and the arms 22a and 22b are maintained in a vertically upright state (see FIGS. 8B and 10B). .
When both arms 22a and 22b stand upright, the plurality of annular rings 21a to 21n are in a state of being polymerized in multiple stages at equal intervals in the horizontal direction, as shown in FIG. 10 (b). 21a-21n is attached to the packaging bag 42 upside down with the bottom on top.
Thereafter, an article to be packaged, for example, several eggplants is pushed into the annular rings 21a to 21n from the bottom of the packaging bag 42 covered with the annular rings 21a to 21n (see FIG. 11 (a)), and the eggplants that have been pushed in. Descends with its weight and is taken out from between the rings 21a to 21n (see FIG. 11b). Thereafter, the bag mouth of the packaging bag is sealed with tape or the like. This operation is repeated thereafter.

  As described above, according to the packaging machine of the second embodiment, in addition to the effects of the first embodiment, the operation mechanism is pushed to insert the bag holder into the packaging bag and lift both arms in one operation. This improves usability.

The external appearance perspective view which shows the packaging machine which concerns on Example 1 of this invention, FIG. 1 is an external perspective view showing an operation mechanism of the packaging machine of FIG. The external appearance perspective view which shows the bag holder of the packaging machine of FIG. The side view which shows the process in which a bag holder is inserted in a packaging bag in the packaging machine of Example 1, The side view which shows the process which inserts a bag holder in a packaging bag in the packaging machine of Example 1, and raises a holder upright. The side view which shows the process which puts a to-be-packaged item in the packaging bag covered with the bag holder in the packaging machine of Example 1. The external appearance perspective view which shows the packaging machine which concerns on Example 2 of this invention, FIG. 7 is an external perspective view showing an operation mechanism of the packaging machine of FIG. The side view which shows the process in which a bag holder is inserted in a packaging bag in the packaging machine of Example 2, The side view which shows the process which inserts a bag holder in a packaging bag in the packaging machine of Example 2, and raises a holder upright, The side view which shows the process which puts a to-be-packaged object in the packaging bag covered with the bag holder in the packaging machine of Example 2. Side view of a prior art packaging machine, It is a side view which shows the holding frame of the packaging machine of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Packaging machine 2 Base 4 Guide member 10 Opening mechanism 20 Bag support body 30 Operation mechanism 31 Moving frame bodies 34a and 34b Movable piece 35 Connection piece 36 Operation lever 37 Slider 40 Bag support body

Claims (8)

A bag support having a plurality of packaging bags attached thereto, a bag mouth opening mechanism for opening the bag mouth of the packaging bag, and being inserted into the bag mouth opened by the opening mechanism to hold the packaging bag in an open state. A packaging machine comprising: a bag holder; an operating mechanism for inserting the bag holder into the bag mouth and moving the bag holder; and a pedestal for holding the operating mechanism slidably in a horizontal direction. There,
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. A frame piece that is rotatably fixed with the second arm facing it, an operation lever that is attached to the first and second arms and operates the first and second arms, and a slider that moves the frame piece And consist of
The annular ring, the frame piece, and the first and second arms form a parallel link, and the operating mechanism is moved to the pedestal side by the slider in a state where the first and second arms are tilted, and the bag holder Is inserted into the packaging bag, and then the first and second arms are raised by the operation lever and lifted with the packaging bag attached to the annular ring. A packaging machine characterized by being ready for insertion.   The packaging machine according to claim 1, wherein the bag holder includes a plurality of annular rings, and the annular rings are sandwiched between the pair of arms at equal intervals.   The packaging machine according to claim 1 or 2, wherein the bag holder is coupled to the operation mechanism by a detachable coupling means. A bag support having a plurality of packaging bags attached thereto, a bag mouth opening mechanism for opening the bag mouth of the packaging bag, and being inserted into the bag mouth opened by the opening mechanism to hold the packaging bag in an open state. A packaging machine comprising: a bag holder; an operating mechanism for inserting the bag holder into the bag mouth and moving the bag holder; and a pedestal for holding the operating mechanism slidably in a horizontal direction. There,
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. A frame piece fixed to be rotatable with the second arm opposed, a contact member provided at one end of the frame piece, a stopper attached to the pedestal and capable of contacting the contact member, It consists of a slider that moves the frame piece,
The annular ring, the frame piece, and the first and second arms form a parallel link, and the operating mechanism is moved to the pedestal side by the slider in a state where the first and second arms are tilted, and the bag holder Is inserted into the packaging bag, and when the bag holder is inserted to a predetermined position in the packaging bag, the slider is further moved to the pedestal side to bring the abutting member and the stopper into contact with each other. Thus, the packaging machine is characterized in that the first and second arms are raised and lifted while the packaging bag is attached to the annular ring, and a packaged item can be inserted into the packaging bag.   The packaging machine according to claim 4, wherein the bag holder includes a plurality of annular rings, and the annular rings are sandwiched between the pair of arms at equal intervals.   The packaging machine according to claim 4 or 5, wherein the bag holder is coupled to the operation mechanism by a detachable coupling means.   The operation mechanism further includes a first restricting member that supports the first and second arms in a horizontal state, and a second restricting member that supports the first and second arms in a vertical state. The packaging machine according to claim 4.   The said contact member consists of a plate-shaped body inclined downward from the said base side, and the said stopper consists of a columnar body by which both ends were fixed to a pair of support | pillar which stood up from the said base. Packaging machine.

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