JP2002087402A - Packaging machine of triangular prismatic product - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging machine of a triangular prismatic product capable of simplifying a structure thereof by moving the triangular prismatic product such as sandwich between a station for charging the product in a packaging bag and a station for folding and sealing the packaging bag by making use of the self weight of the product. SOLUTION: The sandwich Sw which is the triangular prismatic product is charged into the packaging bag B held by a first shutter 5 in the first station S1 provided on an inclined surface 4 of an inclined plate 3. The sandwich Sw slides down on the inclined surface 4 by the self weight, and is received by a second shutter 7 at the second station S2 provided below the first station S1. An unsealed flap formed around an opening of the packaging bag B is folded by a front-folding means 22, a side folding means and a back folding means 25 which are disposed around the packaging bag to form a packaged body Psw of the triangular prismatic product.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging machine for a triangular prism-shaped product, such as a sandwich or a steamed bread, for packaging a triangular prism-shaped product in a packaging bag.

[0002]

2. Description of the Related Art Conventionally, products manufactured in the form of triangular prisms, particularly sandwiches, are basically manufactured by multi-product small-quantity production of multi-product and small-lot products. On-site, it is necessary to insert a wide variety of ingredients into bread or to shape it into a triangular prism. The package of the manufactured sandwich is also often packaged by hand in the final stage of the manufacturing line. In order to deliver a sandwich to a store such as a convenience store at a predetermined time, a predetermined number of sandwiches must be manufactured and packaged by a predetermined time. However, there are many problems that need to be improved in terms of hygiene, space, and cost for manual sandwich packaging.

[0003] Therefore, as a packaging machine for packaging a sandwich manufactured in the shape of a triangular prism without manual intervention,
Various types of packaging machines have been proposed. This type of packaging machine usually packs a sandwich by folding a packaging sheet in a form conforming to the shape of the sandwich, or by folding a flap around an opening of a bag formed in a triangular prism shape leaving an opening. . In particular, in the case of a packaging machine in which a sandwich is pre-packed in a packaging bag in a triangular prism shape, each step of folding a flap around an opening of the packaging bag formed for inserting the sandwich is usually performed along a transport path of the sandwich. It is performed at a plurality of folding stations provided. At each folding station, the folding is performed sequentially by mechanical driving of a folding plate.

[0004] In such a sandwich wrapping machine employing the mechanical drive of the folding plate, a sandwich conveying device is necessary for sequentially transferring the sandwich to each folding station, and each station is mechanically operated. An operating folding mechanism is also required, and it is necessary to synchronize the sandwich conveyance and a series of folding operations by the folding plate. Furthermore, a considerably large space is required as a space for installing the packaging machine, and a mechanical drive system is complicated, and energy consumption for operating the transport device and the drive system cannot be ignored. Therefore, it is difficult to manufacture a packaging machine for sandwiches, and the production cost is increased. In addition, maintenance costs are also high.

[0005]

Therefore, as a packaging machine suitable for a manufacturing site for triangular prism products such as sandwiches,
In addition to improving the packaging speed by putting the product into the packaging bag and folding and closing the packaging bag at different stations, perform the stepwise movement to each packaging station using the weight of the product, There is also a problem to be solved in that the structure of the folding mechanism and the like is simplified by using a triangular prism shape.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problem, and utilizes the weight of a triangular prism-shaped product to stepwise transfer the product to each packaging station without using a transport device using an external drive source. By moving the product and packing it in a packaging bag using the triangular form of the product at each packaging station, it is suitable for the production site of products such as sandwiches that are produced in small lots of various kinds, and the products can be put into the packaging bag. By providing a separate station for folding and closing the packaging bag, the packaging speed is improved, energy consumption and installation space are reduced, and a compact, low-cost manufacturing and maintenance triangular prism-shaped product packaging machine is provided. That is.

[0007]

The present invention is configured as follows to achieve the above object. That is, the present invention provides a sloping plate which is supported by a frame and has a sloping surface adapted to a sloping portion of a triangular prism-shaped product, and a packaging bag having an unsealed flap provided on the sloping plate and formed around an opening. A first station where the triangular prism-shaped product is put through the opening into the held packaging bag through the opening, and provided on the inclined plate below the first station and in a state where the product is put into the packaging bag. A second method for holding the triangular prism-shaped product in a semi-packed state, which slides down the inclined plate by its own weight, folding the unsealed flap of the packaging bag to package the triangular prism-shaped product, thereby forming a triangular prism-shaped package body. The present invention relates to a packaging machine for triangular prism products, comprising a station and a take-out means for taking out the triangular prism package formed in the second station.

[0008] According to the packaging machine for triangular prism-shaped products, there is provided an inclined plate having an inclined surface adapted to a slope of a triangular prism-shaped product manufactured in a triangular prism shape. The inclined plate is provided with a first station that holds a packaging bag having an unsealed flap and into which the triangular prism-shaped product is put.
Below the station, a second station is provided for folding the unsealed flap formed around the opening of the packaging bag to package the triangular prism-shaped product. While the packaging bag is held in the first station, and the triangular prism-shaped product is put into the held packaging bag, the flap of the packaging bag is folded in the second station, so that the holding of the packaging bag in one station is started. The time required for packaging is shortened and the packaging speed is improved, as compared with the case where all the operations up to the insertion of the triangular prism-shaped product and the closing of the packaging bag by folding the flap are performed. From the first station to the second station, the semi-packed triangular prism-shaped product slides down the inclined surface of the inclined plate by its own weight. Is sent from the first station to the second station.

The inclined plate forms a side surface of the triangular prism together with the inclined portion of the triangular prism product in a state where the inclined portion of the triangular prism product is placed on the inclined surface via the packaging bag. The upper surface and the front surface are disposed so as to coincide with the horizontal plane and the vertical surface, respectively, and the unsealed flap is formed in a portion of the packaging bag corresponding to the upper surface. That is, the angle of the inclined plate, in the state where the inclined portion of the triangular prism-shaped product is placed on the inclined surface via the packaging bag,
The upper surface and the front surface forming the side surface of the triangular prism together with the inclined surface of the triangular prism-shaped product are set at angles that match the horizontal plane and the vertical plane, respectively. At this time, the unsealed flap is formed in a portion of the packaging bag corresponding to the upper surface of the triangular prism-shaped product, and in the packaging process, the flap is horizontally folded into the upper surface of the triangular prism-shaped product.

The first station comprises the inclined surface of the inclined plate and an openable and closable first shutter which hangs vertically in a closed position in order to hold the packaging bag in a regulated state. The second station includes the inclined surface and an openable and closable second shutter that hangs vertically in a closed position in order to hold the semi-packed triangular prism-shaped product in a regulated state. The inclination angle of the inclined surface of the inclined plate is an angle sufficient to allow the triangular prism-shaped product to slide down against the frictional force by its own weight just by placing the triangular prism-shaped product. 1st station and 2nd station
The station includes a first shutter and a second shutter that can be opened and closed, respectively, in order to restrict the triangular prism-shaped product from sliding down. The first shutter and the second shutter hang down vertically in the closed position and hold the triangular prism product at each station, but in the open position raised in a direction parallel to the inclined surface, the triangular prism product slides down by its own weight. Tolerate.

The first shutter of the first station and the second shutter of the second station open and close in synchronization with each other by interlocking means. An actuator for opening the two shutters is provided on one of the first shutter and the second shutter, and a return spring for closing the two shutters is provided on the other of the first shutter and the second shutter. Is provided. That is, the other shutter is also opened via the interlocking means by an actuator that operates one of the first shutter and the second shutter,
When the operation of the actuator is released, one of the shutters is also closed via the interlocking means by a return spring for urging the other of the first shutter and the second shutter. By opening and closing the first shutter of the first station and the second shutter of the second station in synchronization with each other by an interlocking means such as a connecting rod, the first shutter is in the closed position and the triangular prism-shaped product is placed on the packaging bag. In the step of inserting the packaging bag, the second shutter is also at the closed position, and the folding step of the packaging bag is performed. First
When the shutter is displaced to the open position and the half-packed triangular prism-shaped product starts sliding down on the inclined surface, the second
The shutter is also displaced to the open position, and the packaged triangular prism-shaped product is taken out by the take-out means.

The unsealed flap formed around the opening comprises a front flap portion, a pair of horizontal flap portions and a rear flap portion, and the second station is operated from the front of the inclined surface. Front folding means for folding the front flap portion on the upper surface portion of the triangular prism-shaped product, and laterally folding the pair of horizontal flap portions on the upper surface portion of the triangular prism-shaped product by operating from the side of the inclined surface. Means disposed on the back side of the inclined surface and operating through a window formed on the inclined surface to fold the rear flap portion on the upper surface portion of the triangular prism-shaped product; There is provided a tape attaching means provided in association with the tape so as to extend over the folded rear flap portion and the front flap portion. That is,
A front flap portion, a pair of horizontal flap portions, and a rear flap portion of the unsealed flap are respectively a front folding means,
Folded by horizontal folding means or rear folding means,
Finally, by attaching the tape over the folded rear flap portion and the front flap portion, the folded flap is prevented from being unraveled, and a closed triangular prism-shaped package is obtained.

The lateral folding means is operated after the front folding means has performed a folding operation, and folds the pair of horizontal flap portions above the front flap portion in the folded state. The lateral folding means is operated after the folding operation is performed, and the rear flap part is folded above the front flap part and the horizontal flap part in the folded state, and the tape attaching means is operated by the folding means. And the front folding means is operated after retreating to attach the tape from the rear flap portion to the front flap portion. That is, in the second station, first, the front folding means folds the front flap portion, and then the horizontal folding means folds the pair of horizontal flap portions above the front flap portion. The horizontal folding means can be composed of a pair of horizontal folding parts, and it is preferable to prevent the interference between the horizontal flap parts by folding each horizontal flap part with a slight time difference. Finally, the rear folding means folds the rear flap portion above the front flap portion and the horizontal flap portion to finish folding the flap portion.
Tape application means attaches the tape from the rear flap to the front flap to prevent each flap from unraveling and to form a closed triangular prism package.

From the first station to at least the second station, the inclined plate is provided with a side guide for regulating and guiding both triangular side portions of the triangular prism-shaped product packed in the packaging bag. Have been. From the first station to the second station, the semi-packed triangular prism-shaped product that slides down by its own weight is guided by the side guides in a state where both triangular side surfaces of the triangular prism-shaped product are regulated, respectively. A trouble such as a tilt of the product does not occur, and the product is moved between stations in a predetermined posture. When the taking-out means for taking out the triangular prism package from the second station is, for example, a chute following the inclined plate, both sides of the triangular prism package sliding down the chute by the guide provided on the extension of the side guide. You may guide a surface part. An interval between the side guides can be changed according to a width between the both side portions of the triangular prism-shaped product. That is, the side guide guides the triangular prism-shaped product in a state where both side surfaces are regulated according to the size of the triangular prism-shaped product.

[0015] The inclination angle of the inclined surface can be changed with respect to the frame according to the shape of the triangular prism of the triangular prism-shaped product. The shape of the triangular prism-shaped product is roughly classified into a triangular prism having a top surface and a bottom surface each having a right-angled isosceles triangle shape, and a right-angled triangle having different lengths of two sides excluding the hypotenuse. The inclination angle of the inclined surface is changed with respect to the frame so that the upper surface is horizontal and the front surface is vertical when the inclined surface of the triangular prism-shaped product of any shape is adapted to the inclined surface of the inclined plate. Preferably it is possible.

The packaging machine for triangular prism products according to the present invention comprises:
In particular, the present invention is applicable as a sandwich packaging machine in which the triangular prism-shaped product is a sandwich. In addition to triangular prism products, besides sandwiches, castella, steamed bread,
Examples include pasty products such as starch and various foods such as cookies and Japanese sweets. In addition, the packaging machine for triangular prism-shaped products can be applied to packaging of any product, regardless of the material or use of wood, synthetic resin or the like, as long as the shape is triangular prism-shaped.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a packaging machine for triangular prism products according to the present invention will be described below with reference to the accompanying drawings. 1 is a side view for explaining an embodiment of a packaging machine for triangular prism products according to the present invention, FIG. 2 is a front view of the packaging machine for triangular prism products shown in FIG. 1, and FIG. FIG. 4 is a plan view showing an operation state of each folding means in the second station of the packaging machine, and FIG. 4 is a perspective view showing a state in which a sandwich is put into a packaging bag.

Referring to FIG. 4, the sandwich Sw to be packed and the packaging bag B used for packaging when the packaging machine for triangular prism products according to the present invention is applied to a sandwich will be described. The sandwich Sw showing the state of being inserted into the packaging bag B has a triangular prism shape as a whole, and has three surfaces serving as side surfaces of the triangular prism, that is, a slope portion 50 adapted to the inclined surface 4. , An upper surface portion 51 and a front surface portion 52, and two parallel side surface portions, ie, side surface portions 53 and 54, which are both bottom surfaces of the triangular prism. The upper surface portion 51 and the front surface portion 52 are surfaces orthogonal to each other.

The packaging bag B has a shape following the shape of the sandwich Sw, which is a triangular prism product. That is, the packaging bag B is formed with an opening 60 for allowing the sandwich Sw to be inserted thereinto, and a closed and sealed flap 66 is formed below. Opening 60
, An unsealed flap 61 is formed in an annular shape. The flap 61 includes a front flap portion 62, a pair of horizontal flap portions 63 and 64, and a rear flap portion 65 which are connected to each other. The packaging bag B is held by the inclined surface 4 of the inclined plate 3 and the first shutter 5 with the unsealed flap 61 opened upward at the first station S1.

In FIG. 1, a packaging machine 1 for a triangular prism product according to the present invention includes a sandwich S as a triangular prism product.
w is a packaging machine for packaging. The frame includes a housing-like frame 2 and an inclined plate 3 attached to the frame 2 so as to extend connecting the diagonal positions. The inclined plate 3 has an inclined surface 4 adapted to the inclined surface 50 of the sandwich Sw, which is a product. The inclination angle θ of the inclined surface 4 of the inclined plate 3 (=
90 ° -α), when the sandwich Sw is placed,
Due to the weight of the sandwich Sw, the angle is sufficient to slide down, against the frictional force acting between the inclined surface 4 and the packaging bag B (to be described in detail later) in which the sandwich Sw is loaded. On the inclined plate 3, a first station S1 for holding the packaging bag B and inserting the sandwich Sw into the held packaging bag B, and a first station S
A second station S2 for forming the sandwich package Psw by packing the sandwich Sw in the packaging bag B below the first inclined surface 4 is provided. In the second station S2, a part of the inclined plate 3 is rotatably disposed with respect to the frame 2 as a window plate 3a.
It can be pushed upward in accordance with the forward operation of the rear folding means 25 described later. In the illustrated example, the sandwich S
Side portions 53 and 54 appearing as both bottom surfaces of w triangular prism
Is a right-angled isosceles triangle, but is not limited to this shape, and may be a right-angled triangle having other two sides having the same length.

The first station S1 includes an inclined surface 4 of the inclined plate 3 and a first openable and closable member disposed in relation to the inclined surface 4.
And a shutter 5. The first shutter 5 is rotatably supported on the frame 2 by the support shaft 6 and hangs vertically in the closed position as shown by the solid line in the figure, and moves the packaging bag B to the first inclined surface 4 of the inclined plate 3 and the first shutter 5. It is held in a state regulated by the shutter 5. The inclined surface 4 and the first shutter 5 occupying the closed position form an angle α corresponding to the acute angle of the sandwich Sw and the packaging bag B. When the first shutter 5 occupies the open position as indicated by the imaginary line in the figure, the sandwich Sw is allowed to slide down along the inclined surface 4.

The second station S2 is provided with an inclined surface 4 of the inclined plate 3 and a second openable and closable member disposed in relation to the inclined surface 4.
And a shutter 7. The second shutter 7 is rotatably supported by the support shaft 8 on the frame 2 as in the case of the first shutter 5, and hangs down in the closed position in the vertical direction as indicated by the solid line in FIG. The held packaging bag B (that is, the sandwich Sw in a semi-wrapped state) is held in a state where it is regulated by the inclined surface 4 of the inclined plate 3 and the second shutter 7. The inclined surface 4 and the second shutter 7 occupying the closed position form an angle α corresponding to the acute angle of the sandwich Sw and the packaging bag B as in the case of the first station S1. The second shutter 7 has the inclined surface 4 as indicated by the imaginary line in the figure.
When occupying the open position raised in the direction parallel to the above, the sandwich Sw wrapped in the packaging bag B is
To allow it to slide down further along. The inclined plate 3 downstream from the second station S2 is a sandwich package Psw.
Constitutes a chute 40 as a take-out means of
The take-out means is not limited to the chute 40 but may be another means such as a pusher.

The first shutter 5 of the first station S1 and the second shutter 7 of the second station S2 are opened and closed in synchronization with each other by a connecting rod 9 as an interlocking means. In the illustrated example, an actuator 1 such as an electromagnetic solenoid is used.
0 is connected to the second shutter 7 as one of the first shutter 5 and the second shutter 7, and when the actuator 10 operates the second shutter 7, the first shutter
The shutter 5 opens in synchronization with the second shutter 7 via the connecting rod 9. The first shutter 5 as the other of the first shutter 5 and the second shutter 7 is provided with a return spring 11 for urging in the closing direction. Therefore, when the actuator 10 is turned off, the first shutter 5 closes in synchronization with the second shutter 7 via the connecting rod 9 by the return action of the return spring 11. The first shutter 5 is provided with a confirmation switch 12 that operates in the open position. The switch 12 for confirmation has a function of notifying a worker or the like of a situation in which the sandwich Sw slides down when the shutters 5 and 7 are opened.

The first shutter 5 and the second shutter 7 are opened and closed in synchronization with each other by an interlocking means such as a connecting rod 9 so that the first shutter 5 is in the closed position and the sandwich Sw is inserted into the packaging bag B. In this step, the second shutter 7 also occupies the closed position. Therefore, the second station S2
When the folding process of the packaging bag B is performed in the above, the sandwich Sw does not slide down from the first station S1. When the first shutter 5 is in the open position,
When the sandwich Sw in the semi-packed state slides down on the inclined surface 4, the second shutter 7 is also in the open position, and the sandwich package Psw is taken out of the second station S2 by the chute 40.

At least a second station from the first station S1
Up to the station S2, the inclined plate 3 is provided with a pair of mutually parallel side guides 13 and 14 for guiding both side portions 53 and 54 of the sandwich Sw in a semi-packaged state. When the first shutter 5 of the first station S1 is opened, the sandwich Sw in a semi-packed state that slides down by its own weight is moved by the side guides 13 and 14 to the side portions 5.
Since the guide is guided by 3, 54, the sandwich Sw does not incline or tilt, and slides down to the second station S2 in a predetermined posture. The interval W at which the side guides 13 and 14 are arranged can be changed according to the width w that differs depending on the type of the sandwich Sw.
Numeral 14 guides the sandwich Sw in a state where the side surface is regulated, corresponding to the size of the manufactured sandwich Sw. In the illustrated example, the side guides 1 are also provided on both sides of the chute 40 provided below the second station S2.
Side guides 15, 16 provided on extensions of 3, 14
Guides the sliding down of the chute 40 sandwich package Psw, but for the side guides 15 and 16,
If the posture of the sandwich package Psw does not collapse, it can be omitted.

The inclined plate 3 is provided on the inclined surface 5 of the sandwich Sw.
0 is placed on the inclined surface 4 via the packaging bag B,
The inclination angle θ is set so that the upper surface portion 51 and the front surface portion 52 that form the side surface of the triangular prism together with the inclined surface portion 50 of the sandwich Sw match the horizontal plane and the vertical plane, respectively. The inclination angle θ of the inclined surface 4 can be changed with respect to the frame 2 according to the shape of the triangular prism of the sandwich Sw. The shape of the sandwich Sw is a right-angled triangle as viewed from above and below the triangular prism, but may be a right-angled isosceles triangle or a non-right-angled triangle. By making the inclination angle θ of the inclined surface 4 changeable with respect to the frame 2, any shape of the right-angled triangular sandwich Sw
However, when the inclined portion 50 is placed on the inclined surface 4 of the inclined plate 3, the upper surface portion 51 can be made horizontal and the front surface portion 52 can be made to take a vertical posture. The unsealed flap 61 of the packaging bag B is located around the upper surface 51 of the sandwich Sw, and in the packaging process described below, the unsealed flap 61 is folded horizontally on the upper surface 51 of the sandwich Sw. .

At the second station S1, a folding mechanism 21 for folding the unsealed flap 61 is provided.
That is, the folding mechanism 21 is operated from the front of the inclined surface 4 in front of the packaging machine 1 to fold the front flap portion 62 onto the upper surface portion 51 of the sandwich Sw.
Operating from the side of the inclined surface 4, a pair of horizontal flap portions 63,
Lateral folding means 23 and 24 for folding the upper flap portion 64 on the upper surface portion 51 of the sandwich Sw, and rear folding means 25 for folding the rear flap 65 by operating through the window 27 formed in the inclined plate 3 from behind the inclined plate 3. , And the rear folding means 25, all of which are arranged to operate in the horizontal direction. Since a part of the inclined plate 3, which forms the window 27 each time it is opened, is normally closed, it does not affect the sliding down of the sandwich Sw.

Front folding means 22, lateral folding means 23, 2
4 and the rear folding means 25 include actuators 32, 33, 34, and 35,
Front folding plate 36, horizontal folding plate 3 provided at the tip of 35
7, a horizontal folding plate 38 and a rear folding plate 39 are provided. The actuator 34 has a rod structure that moves by the reaction of the actuator 33, but can be replaced with a normal actuator. As shown in FIG. 3, the front folding plate 36 includes a front flap portion 62.
Has a shape that is sharp at the tip of the mountain shape 36a so as to be sufficient to fold the. Since the horizontal folding plate 37 is in the same plane as the front folding plate 36, it is formed in a tapered shape 37a that does not interfere with each other. The horizontal fold plate 38 is formed in a tapered shape 38a similarly to the horizontal fold plate 37. However, as shown in FIG. 1, the horizontal fold plate 38 is higher than the front fold plate 36 and the horizontal fold plate 37 by an amount corresponding to the plate thickness. Are located. Further, the horizontal folding plates 37 and 38 have edges 37b and 37b common to the rear folding plate 39 side so that a fold is easily formed when the rear folding plate 39 folds the rear flap portion 65.
38b. The rear folding plate 39 is protruded and retracted on the front side of the inclined plate 3 through the window 27 formed by pushing up the window plate 3a which is a part of the inclined plate 3 by the operation of the actuator 35. Tip 39a of rear folding plate 39
Is formed in a curved shape in order to facilitate the adhesion of the adhesive tape 28 by the tape attaching means 26.

The rear folding means 25 of the packaging machine 1 is provided with a tape attaching means 26 for attaching the adhesive tape 28 to the flap portion 61 in the folded state. The adhesive tape 28 is guided out of the tape reel 29 held on the frame 2 by the respective rollers 30 on the back side of the inclined plate 3, and is fed out. The rear end of the adhesive tape 28 is oriented in a state where the adhesive surface faces forward. It is sent to the front of the folding means 25 and to the back of the window plate 3a. The rear folding plate 39 of the rear folding means 25 is provided with a cutter 31 for cutting the adhesive tape 28. When the rear folding plate 39 pushes up the window plate 3a by the operation of the rear folding means 25 and advances forward of the inclined plate 3 through the opened window 27, one end of the adhesive tape 28 corresponding to one use length is used. The part is cut, and is stuck on the rear flap part 65 and the front flap part 62 in the folded state.

When the first shutter 5 and the second shutter 7 are closed at each of the stations S1 and S2, the packaging bag B is moved upward by the inclined surface 4 and the first shutter 5 at the first station S1. It is held open. The sandwich Sw is put into the packaging bag B through the opening 60. When the shutters 5 and 7 are opened synchronously by the action of the connecting rod 9, the opening Sw is opened and the sandwich Sw in a semi-wrapped state slides down on the inclined surface 4 by its own weight, and all the folding plates 36 to 39 passes through the folding mechanism 21 in the retracted state, and the second station S2
Leads to. By this time, the shutters 5 and 7 are closed, and the sandwich Sw in the semi-wrapped state is stopped and held in the closed second station S2. The position of the second shutter 7 is such that the window 27 is located on the upper surface 5 of the sandwich Sw.
It is set in advance so as to be at a position corresponding to 1.

In the second station S2, first, the front folding means 22 is operated, and the front flap portion 62 is folded by the front folding plate 36 into the upper surface portion 51 of the sandwich Sw. Then, the horizontal folding means 23 and 24 fold the pair of horizontal flaps 63 and 64 above the front flap 62 in the folded state. The horizontal folding means 23 operates first, and the horizontal folding plate 37 advances in the same plane as the front folding plate 36 to fold the horizontal flap 63 above the front flap 62. The horizontal folding means 24 operates with a slight time difference to prevent mutual interference, and the horizontal folding plates 38
Immediately above the front folding plate 36 and the horizontal folding plate 37, the horizontal flap portion 64 is folded over the front flap portion 62 and the horizontal flap portion 63 in the folded state. Finally, the rear folding means 25 is operated, and the rear folding plate 39 advances forward of the inclined plate 3 through the window 27 formed in the inclined plate 3, and the folded front flap 62 and the horizontal flap 63, Folding the rear flap portion 65 on the upper side with 64
The folding of the flap portion 61 ends. At this time, the tape attaching unit 26 operates after the rear folding unit 25 performs the folding operation and the front folding unit 22 retreats, and the adhesive tape 28 is moved from the rear flap 65 in the folded state to the front flap 62. Adhere to. The adhesive tape 28 prevents each of the flap portions 62 to 65 from unraveling and forms a closed sandwich package Psw. In this embodiment, the flap portion 62 folded by the adhesive tape 28 is used.
Although -65 are sealed, they may be sealed by heat sealing instead of the adhesive tape 28. That is, the rear flap 65 is welded to at least the folded front flap 62 by lightly pressing with a heat seal bar from above the flap 65 after the last folding.

According to the above embodiment, the packaging bag B is held in the first station S1, and the second station S is inserted while the sandwich Sw is loaded into the held packaging bag B.
In 2, the folding of the open flap 61 of the packaging bag B is performed, so that compared with the case where all of the holding of the packaging bag, the insertion of the sandwich, and the closing of the packaging bag by the folding of the flap are performed in one station, The time required for packaging is reduced, and the packaging speed is improved. Further, from the first station S1 to the second station S2, since the sandwich Sw in the semi-packed state slides down the inclined surface 4 of the inclined plate 3 by its own weight, a transport device driven by an external drive source as usually used is used. Instead, transfer between stations is performed. Therefore, the packaging bag B of the sandwich Sw is provided between the first station S1 and the second station S2.
And the folding of the packaging bag B are simultaneously performed and processed, and the packaging speed is increased without the front and rear sandwiches Sw colliding with each other.

[0033]

According to the packaging machine for a triangular prism product according to the present invention, there is provided an inclined plate having an inclined surface adapted to a slope of the triangular prism product, and the inclined plate has a packaging having an unsealed flap. A first station for holding the bag, the triangular prism product is put into the packaging bag, and the unsealed flap formed around the opening of the packaging bag below the first station is folded to form the triangular prism product. Since the second station for packaging is provided, the packaging bag is held at the first station, and while the triangular prism-shaped product is put into the held packaging bag, the flap of the packaging bag is folded at the second station. Done. Therefore, since the loading of the product into the packaging bag and the folding and closing of the packaging bag are performed at different stations, the packaging bag is stored at one station, the triangular prism-shaped product is loaded and the packaging bag is folded. Compared to doing everything up to the blockade of
The time required for packaging is reduced, and the packaging speed is improved. Further, from the first station to the second station, the semi-packed triangular prism-shaped product slides down the inclined surface of the inclined plate by its own weight, and thus does not require an external drive source that consumes energy. Furthermore, by using the triangular prism form of the product at each packaging station and packaging it in a packaging bag, it is suitable for the production site of products such as sandwiches that are produced in small lots of various kinds, requires less installation space, and is compact. It is possible to provide a packaging machine for triangular prism products whose production and maintenance are low cost.

[Brief description of the drawings]

FIG. 1 is a side view illustrating an embodiment of a packaging machine for triangular prism products according to the present invention.

FIG. 2 is a front view of the packaging machine for triangular prism products shown in FIG.

FIG. 3 is a plan view showing an operation state of each folding means in a second station of the packaging machine for triangular prism products shown in FIG. 1;

FIG. 4 is a perspective view showing a state where a sandwich is put into a packaging bag.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Triangular column-shaped product packaging machine 2 Frame 3 Inclined plate 4 Inclined surface 5 First shutter 7 Second shutter 9 Connecting rod (interlocking means) 10 Actuator 11 Return spring 13, 14 Side guide 22 Front folding means 23, 24 Horizontal folding means 25 Back Folding Means 26 Tape Attachment Means 27 Window 28 Adhesive Tape 40 Chute (Taking Out Means) 50 Slope 51 Upper Surface 52 Front 60 Opening 61 Unsealed Flap 62 Front Flap 63, 64 Side Flap 65 Back Flap S1 1st station S2 2nd station B Packaging bag Sw sandwich (triangular prism product) Psw sandwich package (triangular prism package) W Side guide spacing w Triangular prism product width θ Incline of inclined surface

Claims (11)

[Claims] An inclined plate supported on a frame and having an inclined surface adapted to an inclined portion of a triangular prism-shaped product, and a packaging bag provided on the inclined plate and having an unsealed flap formed around an opening. A first station in which the triangular prism-shaped product is charged through the opening into the held and held packaging bag, the first station being provided on the inclined plate below the first station and being loaded in the packaging bag; A second station for forming the triangular prism package by holding the triangular prism product in a semi-packed state in which the inclined plate has been slid down by its own weight and folding the unsealed flap of the packaging bag to package the triangular prism product. And the second
A packaging machine for a triangular prism-shaped product, comprising a take-out means for taking out the triangular prism-shaped package formed at a station. 2. The side plate of the triangular prism together with the slope portion of the triangular prism-shaped product in a state where the inclined portion of the triangular prism-shaped product is placed on the inclined surface via the packaging bag. Since the upper surface portion and the front surface portion to be formed are disposed in a manner corresponding to the horizontal surface and the vertical surface, respectively, and the unsealed flap is formed in the portion of the packaging bag corresponding to the upper surface portion. The packaging machine for a triangular prism product according to claim 1. 3. The first station is constituted by the inclined surface of the inclined plate and a first openable and closable shutter that hangs vertically in a closed position in order to hold the packaging bag in a regulated state. The second station is constituted by the inclined surface and an openable and closable second shutter that hangs vertically in a closed position in order to hold the triangular prism-shaped product in a semi-packed state in a regulated state. A packaging machine for a triangular prism product according to claim 2. 4. The packaging of a triangular prism product according to claim 3, wherein said first shutter of said first station and said second shutter of said second station are opened and closed in synchronization with each other by interlocking means. Machine. 5. An actuator for opening both shutters is provided on one of the first shutter and the second shutter, and the other shutter is closed on the other of the first shutter and the second shutter. 5. The packaging machine for triangular prism-shaped products according to claim 4, further comprising a return spring. 6. The unsealed flap formed around the opening comprises a front flap, a pair of lateral flaps and a rear flap, wherein the second station comprises:
Front folding means which operates from the front of the inclined surface to fold the front flap portion on the upper surface portion of the triangular prism-shaped product,
Lateral folding means that is operated from the side of the inclined surface to fold the pair of lateral flap portions on the upper surface of the triangular prism-shaped product, a window disposed on the back side of the inclined surface and formed in the inclined surface A post-folding means that operates through to fold the rear flap onto the upper surface of the triangular prism-shaped product;
And a tape attaching means provided in connection with the rear folding means and attaching a tape across the folded rear flap portion and the front flap portion. Machine for triangular prism products. 7. The horizontal folding means operates after the front folding means performs a folding operation, and folds the pair of horizontal flap parts above the front flap part in the folded state, wherein the rear folding means is The lateral folding means is operated after the folding operation is performed, and the rear flap part is folded above the front flap part and the horizontal flap part in the folded state, and the tape attaching means is the rear folding means. 7. The packaging machine for triangular prism products according to claim 6, comprising a folding operation and being operated after the front folding means is retracted to attach the tape from the rear flap portion to the front flap portion. 8. A side guide for restricting and guiding both triangular side portions of the triangular prism-shaped product packaged in the packaging bag, from the first station to at least the second station. The packaging machine for a triangular prism-shaped product according to claim 1, further comprising: 9. The packaging machine for triangular prism products according to claim 8, wherein the interval between the side guides can be changed according to the width between the both side portions of the triangular prism product. 10. The packaging machine according to claim 1, wherein an inclination angle of the inclined surface is changeable with respect to the frame according to a shape of the triangular prism of the triangular prism product. 11. The packaging machine for a triangular prism product according to claim 1, wherein the triangular prism product is a sandwich.