JP2016043944A - Packaging device, packing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a compact packaging device which has very excellent workability and can be used even in a shop of a small scale.SOLUTION: A packaging device is equipped with: a housing 10 which is provided with an opening 10a on a top face thereof; a descent table 20 which is smaller than a sheet-like packaging material A and is provided in the opening, on which the sheet-like packaging material A is loaded, and by which a package descends until the package is embedded in the opening in the state that the package is loaded on the packaging material; and overlapping parts 31, 33. After the descent table descends whereby at least two ends of the packaging material protruded from the descent table are brought into contact with a marginal part of the opening and are bent upwards, the overlapping parts overlap the ends in such a manner that the overlapping parts move towards the bent ends in the opening, thereby covering a top face of the package.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a packaging apparatus and a packaging method for packaging an article to be packaged such as confectionery with a sheet-shaped packaging material.

  2. Description of the Related Art Conventionally, as this type of packaging apparatus, an apparatus that continuously performs packaging using a rotary table such as a rotary or a turntable is known. In general, this packaging apparatus is designed such that after the article to be packaged is placed manually or automatically in a hole provided in the turntable, the article to be packaged is lifted by a lifter, the turntable is rotated, and frame feed is performed. Made. Thereafter, a roll-shaped packaging film is supplied, square-folded, cut, and the like from above, and is heat-sealed to wrap an item to be packaged. The article to be packaged in this way is conveyed by a discharge sheet and discharged outside the apparatus.

  In related technology, it is possible to continuously fill and supply the product into the bag without pausing the continuously moving bag, and gradually supply the product by tilting the cup. There is known a technique that enables supply without being damaged (see, for example, Patent Document 1).

JP 2013-119427 A

  Since the packaging apparatus using the turntable as described above has a large-scale apparatus configuration, it is generally used by companies having a vast factory, such as being arranged mainly in a factory centering on mass production. . Therefore, there has been a problem that it is difficult to introduce a small-scale store such as a private store centering on small-volume production from the viewpoint of its installation location, introduction cost, excessive high capacity, and the like. Therefore, in such stores, the items to be packaged are displayed without being wrapped, and the salesperson encloses them in a plastic case at the time of sale, or they are wrapped by hand winding and taped, and their workability is extremely high. It was bad and there were also problems with hygiene.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a compact packaging device that has extremely good workability and can be used in a small-scale store.

  In order to solve the above-described problems, one embodiment of the present invention includes a housing having an opening on an upper surface and a sheet-shaped packaging material that is provided in the opening and covered on the packaging material. In a state where the package is placed, a lowering platform smaller than the packaging material that descends until the packaged material is immersed in the opening, and the packaging material that protrudes from the lowering platform when the lowering platform descends The at least two ends of the opening contact the edge of the opening and are bent upward, and then move toward the bent end in the opening so as to cover the upper surface of the package. A folding portion that folds the end portion.

  According to this invention, workability | operativity is very good and it can be used also in a small shop, and a to-be-packaged object can be packaged with a compact apparatus structure.

It is a perspective view of the desktop packaging apparatus which concerns on this Embodiment. It is a top view of a desktop packaging apparatus. It is a top view which shows the state which has arrange | positioned the packaging material on a desktop packaging apparatus. It is a schematic longitudinal cross-sectional view of the desktop packaging apparatus front for demonstrating a descending stand. It is a perspective view which shows an adjustment top. It is a schematic longitudinal cross-sectional view of the side of the desktop wrapping apparatus for explaining the position adjustment of the descending table by the adjustment piece. It is a schematic longitudinal cross-sectional view for demonstrating a shutter and a side shutter. (A) is a top view which shows the state which one shutter and side shutter advanced, (b) is the outline of the desktop packaging apparatus front surface for demonstrating folding of the packaging material by one shutter and side shutter. It is a longitudinal cross-sectional view. (A) is a top view which shows the state which the other shutter and side shutter advanced, (b) is the outline of the desktop packaging apparatus front surface for demonstrating folding of the packaging material by the other shutter and side shutter. It is a longitudinal cross-sectional view. It is a schematic diagram which shows the location of the packaging material bent by a shutter and a side shutter. It is a perspective view for demonstrating a shutter guide. It is a top view for demonstrating a pressing board. It is a schematic longitudinal cross-sectional view for demonstrating a pressing board. It is a top view of the desktop packaging apparatus which shows a mode that a welding part turns. It is a schematic diagram which shows the welding part to descend | fall. It is a figure which shows the heater of a welding part, a heater support part, a hinge pin, and an arm. It is a top view for demonstrating the operation | movement order of a desktop packaging apparatus. It is a top view for demonstrating the operation | movement order of a desktop packaging apparatus. It is a figure which shows a mode that a to-be-packaged object is packaged with a desktop packaging apparatus. It is a top view which shows the internal structure of a desktop packaging apparatus.

  Embodiments of the present invention will be described below with reference to the drawings. In the present embodiment, only a thin wrapping such as PP (polypropylene), PE (polyethylene), PVC (polyvinyl chloride), and PE (polyethylene) is wrapped in one thin sheet (film). An explanation will be given by taking as an example a one-packaging tabletop packaging device that is packaged with a material, particularly a heat-weldable packaging material. Note that the packaging material is not limited to the above-described one, and any material may be used as long as it can package the package.

(Equipment component)
First, the overall configuration of the desktop packaging apparatus according to the present embodiment will be described. As shown in FIGS. 1 to 3, the tabletop packaging apparatus 1 according to the present embodiment is a rectangular cube, and a casing 10 having a rectangular opening 10 a that is long in the XX direction is formed at the approximate center of the upper surface. A lowering base 20 for placing the packaging material A and an unillustrated packaged object provided in the opening 10a, shutter plates 31a and 31b for folding the packaging material A, and two side shutter plates 32a and 32b. And the pressing plates 33a and 33b, the welded portion 40 for heat-welding the folded portion of the packaging material A, the two shutter guide plates 50 for guiding the shutter plates 31a and 31b, and the shutter guide, respectively. An adjustment handle 501 for adjusting the position of the plate 50, a guide pin 502, and a guide groove 503 are provided.

  In addition, the tabletop packaging apparatus 1 has a power switch 61 of the tabletop packaging apparatus 1, a temperature control switch 62a for operating ON / OFF of a heater, which will be described later, provided in the welding unit 40, and a heater temperature display on the front surface. And an adjustable heater adjuster 62b, a welding portion adjustment handle 62c for manually adjusting a series of operations of raising and lowering and turning of the welding portion 40, and a one-cycle switch for driving the tabletop packaging apparatus 1 for only one cycle. 63, an inching switch 64 for causing the motor to be described later to incline, a descending base adjustment handle 65 for adjusting the height of the descending base 20, and a stop / reverse switch for stopping and reversely operating the motor 66 and a fuse 67, and a power cord 68 for household voltage (for example, 100V) is provided on the side thereof. In addition, the detail about a series of operation | movement of raising / lowering and turning of the welding part 40 mentioned above is mentioned later. For the sake of explanation, the description will be made hereinafter with the right side surface of the tabletop packaging apparatus 1 as X, the left side surface as X ′ on the back side as Y, and the front side as Y ′.

  In order to deepen the understanding of the present embodiment, the operation of the desktop packaging apparatus 1 will be briefly described.

  As shown in FIG. 3, the packaging material A is placed on the lowering table 20, and a packaged object (not shown) is placed thereon. 1 and 2, 7 extending from the opening 10 a in four directions (X, X ′, Y, Y ′ directions) on the upper surface of the housing 10 is for measuring the size of the packaging material A. The packaging material A is placed using the scale 7 as a guide. In this state, when the article to be packaged is placed on the packaging material A, the lowering base 20 descends into the opening 10a by its own weight and is completely immersed. After the immersion, the packaging material A is folded by the shutter plates 31a and 31b, the side shutter plates 32a and 32b, and the pressing plates 33a and 33b provided on the four sides of the descending table 20 in the immersed state, and the folded portions Since the contact part of the heater with which the welding part 40 is provided contacts, the said part is heat-welded and packaging of a to-be-packaged object is completed.

  In addition, when using this tabletop packaging apparatus 1, the power switch 61 is turned on and the temperature control switch 62a is turned on, and the heater of the welded portion 40 is set to the temperature previously set by the heater controller 62b. After that, when the one-cycle switch 63 is pressed, the above-described operation is executed. In addition, it is preferable that the temperature is appropriately adjusted by the heater adjuster 62b depending on the material and size of the packaging material A to be used and the type of the package. As described above, since the desktop packaging apparatus 1 is completed in one step, the user can appropriately place the packaging material A and the article to be packaged on the lowering table 20, press the cycle switch 63, and perform packaging. Remove the packaged material manually.

  Hereafter, each component mentioned above is demonstrated in detail using FIGS. 4-15. In the following drawings, other constituent elements than the main constituent elements to be described are omitted as appropriate in order to facilitate the description.

(Descent table 20)
As shown in FIG. 4A, the descending table 20 includes a circular table 201 on which the packaging material A and an object to be packaged are placed, and a shaft connected to the lower surface center part of the table 201 so as to support the table 201. 202, a spring 203 that supports the shaft 202 so as to move up and down, a cylinder 204 that houses the spring 203 and has an upper surface slidably passed through the shaft 202, and one end that can slide on the lower surface of the cylinder 204 And a shaft 205 fixed to a support base 10b (see FIG. 6) provided in the housing 10 at the other end.

  When the packaging material A and the package B are placed on the table 201, the spring 203 is compressed by the weight of the package B as shown in FIG. Then, as shown in FIG. 4C, the article to be packaged B is completely immersed in the opening 10a. In this state, the two end portions (two corners) of the packaging material A can be brought into contact with the shutter guide plate 50 located in the vicinity and bent. In the present embodiment, in the space between the upper side of the inner wall surface of the housing 10 and the article to be packaged B, the shutter plates 31a and 31b, the side shutter plate 32a, When 32b advances, the end is bent and folded (see FIGS. 8 and 9). Therefore, it is preferable that adjustment is possible so that the packaging material A and the article to be packaged B are lowered to an appropriate position, that is, a position where the packaging material A can be folded by the shutter 31 or the like. Therefore, in the present embodiment, an adjustment piece 206 that can adjust the cylinder 204 in the vertical direction is provided below the cylinder 204.

  As shown in FIG. 5, the adjustment piece 206 is connected to the lower table adjusting handle 65 and the inclined surface 206 a inclined to the lower table adjusting handle 65 side (Y ′ direction side) in order to contact the lower surface of the cylinder 204. A threaded hole 206b penetrating from the side surface on the descending base adjustment handle 65 side to the inclined surface 206a, in which a screw groove 55a can be screwed, and a notch part 206c through which the shaft 205 is inserted. Is formed.

  The adjustment piece 206 is slidably supported on a support base 10b provided in the housing 10, and when the lowering base adjustment handle 65 is rotated, the screw portion 65a is rotated and the screw fitting hole 206b is moved inside. Can be moved in the Y or Y ′ direction. The cut portion 206c is formed long in the Y-Y 'direction so that the shaft 205 does not hinder the movement. The width of the cut portion 206c is preferably slidable with respect to the shaft 205, and is preferably U-shaped so as to be engageable with the shaft 205 when moved in the Y direction. Thereby, the adjustment piece 206 can move straight and stably with respect to the shaft 205, and the cylinder 204 can be moved up and down in accordance with the inclination of the inclined surface 206a.

  For example, as shown in FIG. 6 (a), before placing the article to be packaged B, as shown in FIG. 6 (b) in a state where the lower surface of the cylinder 204 is positioned above the slope 206a. In addition, even if the package B is placed on the table 201, the package B may not be completely immersed in the opening 10a. In this case, as shown in FIG. 6C, the adjustment piece 206 is moved to the lowering base adjustment handle 65 side (Y ′ direction side), the cylinder 204 is lowered, and the package B is immersed in the opening 10a. And the packaging material A can be adjusted to a position where it can be folded. Therefore, the adjustment piece 206 can be packaged corresponding to a wide variety of articles B to be packaged.

(Shutter plates 31a and 31b)
The shutter plates 31a and 31b (hereinafter referred to as the shutter plate 31 when the two are not distinguished) are sandwiched between the opening 10a below the upper wall of the housing 10 as shown in FIGS. It is a pair of rectangular flat plate members that can be horizontally moved in a direction approaching and separating from each other, that is, reciprocating linearly moving. In the present embodiment, as shown in FIGS. 1 to 3, the rectangular opening 10 a is provided so as to be orthogonal to the longitudinal direction. Therefore, when the article to be packaged B is placed and the table 201 is lowered, the end of the packaging material A that is bent in contact with the shutter guide plate 50 is positioned in the direction approaching each other as viewed from the shutter plate 31. Will be. In the present embodiment, this end corresponds to the corner C located on the diagonal in the XX ′ direction of the packaging material A shown in FIG. When the shutter plate 31 moves in the direction in which the shutter plates 31 approach each other, the tip of the shutter plate 31 comes into contact with the corner corner C, and when the shutter plate 31 moves further in this direction, the corner corner C can be folded over.

  In the present embodiment, as shown in FIGS. 8A and 8B, after the shutter plate 31a moves in the direction of the shutter plate 31b (direction of X ′), FIG. ) And FIG. 9B, the shutter plate 31b moves in the direction of the shutter plate 31b (direction of X). Note that the pair of shutter plates 31 overlap with each other with a slight gap so that the corners C of the packaging material A are satisfactorily folded, that is, overlap each other in a plan view and are positioned in the vertical direction. Preferably they are different. Therefore, in the present embodiment, as shown in FIG. 9B, the shutter plate 31b is provided so as to be shifted in the vertical direction so that the shutter plate 31b moves above the shutter plate 31a. In the present embodiment, the side shutter plate 32b is similarly positioned above the side shutter plate 32a, but may be the same position in the vertical direction.

(Side shutter plates 32a and 32b)
The side shutter plates 32a and 32b (hereinafter referred to as the side shutter plate 32 if they are not distinguished from each other) are spaced apart on both sides so as to sandwich the shutter plate 31 as shown in FIGS. A pair of rectangular flat plate members that can move horizontally, that is, reciprocate linearly, in conjunction with the shutter plate 31 in a direction approaching and separating from the opposite side shutter plate 32. Further, the side shutter plate 32 is disposed so that the plane thereof is perpendicular to the plane of the shutter plate 31. Therefore, when the side shutter plate 32 moves, the front end thereof comes into contact with both end portions D located in the vicinity of the corner corner C of the packaging material A shown in FIGS. 10A and 10B, and the shutter. The plate 31 can be assisted so that the corners C can be bent accurately.

  The side shutter plate 32 is provided with a guide groove 321 along the longitudinal direction, and a guide 322 fixed in the housing 10 is inserted into the guide groove 321. Accordingly, the side shutter plate 32 can be supported by the drive mechanism of the side shutter plate 32 described later and the guide 322, and even if the side shutter plate 32 moves, the side shutter plate 32 slides with respect to the guide 322. The previous position accuracy can be improved. That is, the vertical blur of the side shutter plate 32 is restricted.

  Note that the front ends of the side shutter plates 32 in the approaching direction are preferably positioned behind the front ends of the shutter plates 31 so as not to contact the opposing side shutter plates 32. Moreover, it is preferable that the space | interval between a pair of side shutter board 32 (side shutter board 32a, 32a and 32b, 32b) is larger than the diameter of the table 201 so that it may not contact | abut the to-be packaged object B at the time of a movement.

(Shutter guide plate 50)
The shutter guide plate 50 is a rectangular plate-like member provided on the upper surface of the housing 10 located on both sides of the opening 10a so as to be orthogonal to the longitudinal direction of the opening 10a, as shown in FIGS. The one end is bent so as to enter vertically into the opening 10a. By forming the bent portion 50a, when the table 201 is lowered, the corner corner C of the packaging material A is prevented from entering the opening 10a and entering below the upper wall of the casing 10. .

  Further, as shown in FIG. 11 (a), the bent portion 50a is provided with a guide port 50b for enabling horizontal movement (linear motion) of the shutter plate 31, as shown in FIG. 11 (b). As shown, the shutter plate 31 can be guided to an appropriate position by moving horizontally through the guide port 50b. Further, the bent portion 50a is cut out at the lower corner portion so that the side shutter plate 32 can be moved horizontally, that is, not in contact. FIG. 11 shows the shutter guide plate 50 on the X ′ direction side, and the shutter guide plate 50 has been described here, but the shutter guide plate 50 on the X direction side has the same configuration. The description is omitted.

  The shutter guide plate 50 is provided with a guide groove 503 extending along the longitudinal direction of the shutter guide plate 50 at the approximate center in the short direction. An adjustment handle 501 screwed into the upper wall of the housing 10 and a guide pin 502 fixed to the upper wall of the housing 10 are inserted through the guide groove 503. Accordingly, the shutter guide plate 50 can be appropriately moved in the longitudinal direction (XX ′ direction), and the packaging material A can be folded and folded according to the shape such as the diameter of the article to be packaged B. Can be adjusted. By rotating the adjustment handle 501 so as to be pushed into the housing 10 side, the shutter guide plate 50 can be pressed against the housing 10 and can be fixed. It is only necessary to rotate and to release the pressing. Further, since the guide pin 502 is inserted into the guide groove 503, the movement of the shutter guide plate 50 in the short direction (Y-Y 'direction) is restricted.

(Presser plate 33a, 33b)
The pressing plates 33a and 33b (hereinafter referred to as the pressing plate 33 when the two are not distinguished) are provided in the opening 10a with the table 201 interposed therebetween as shown in FIGS. This is an S-shaped crank-shaped member that can swing in directions toward and away from each other. In the present embodiment, the pressing plate 33 swings in the longitudinal direction of the long opening 10a, that is, swings in a direction perpendicular to the moving direction of the shutter plate 31 (X direction of the opening 10a (X -X 'direction) and connected to a rotating shaft 331a that is rotatably supported inside the housing 10 via a support member 331b. The support member 331b is fixed to the rotary shaft 331a via a screw or the like at the lower end of the pressing plate 33. The pressing plate 33 oscillates around the rotation shaft 331a.

  The holding plate 33 is formed in an S shape so that when the article to be packaged B is placed and the table 201 descends and swings in a direction approaching each other, the corner C of the packaging material A (not shown) is formed. It can be folded and folded up from the bottom to the top. Therefore, even when the object to be packaged B is placed and the table 201 is lowered, the corner C does not contact the edge of the opening 10a, that is, the corner C is not bent. The corner portion C can be bent well. Here, the corner corner portion C folded is a corner corner portion C on a diagonal line perpendicular to the diagonal line formed by the corner corner portion C bent by the shutter plate 31.

  In addition, the pressing plate 33 is formed with a pressing portion 332 that is inclined downward at the end opposite to the connecting portion of the rotating shaft 331a. As a result, as shown in FIG. 13, in a state where the rocker has completely swung in directions approaching each other, the corner corner C of the packaging material A (not shown) can be pressed toward the packaged item B, and the corner corner C can be folded more favorably. In addition, the pressing portion 332 is provided with a substantially semicircular cutout 333 at the end thereof, and in a state where the two pressing portions 332 are completely close to each other, the two cutouts 333 cause the notch 333 to be shown in FIG. ) Is formed as shown in FIG. By forming the insertion opening 334, the corner portion C is exposed upward while the corner portion C folded by the pressing portion 332 is continuously pressed onto the article B to be packaged. Reliable and accurate heat welding can be performed at a location by a heater 401 and a contact portion 402 described later of the welding portion 40.

  In the present embodiment, as shown in FIGS. 12B and 13B, the pressing plate 33a swings in the direction of the opposing pressing plate 33b (the direction of Y ′), and then the pressing is performed. The plate 33b swings in the direction (Y direction) of the pressing plate 33a facing the plate 33b. In addition, it is preferable that the holding | suppressing part 332 mutually overlaps so that the corner part C may be folded up favorably.

(Welding part 40)
As shown in FIG. 14, the welding portion 40 has a substantially L shape and is provided in the housing 10 so as to be able to turn in the horizontal direction. As shown in FIGS. 15 and 16, the heater 401 A contact portion 402 that is heated by the heater 401 and protrudes downward from the heater 401 so as to be able to contact the packaging material A, a heater support portion 403 that supports the heater 401, and a horizontal direction that supports the heater support portion 403 An arm 404 extending to the arm 404, a hinge pin 405 provided between the heater support 403 and the arm 404, a mast 406 extending in a vertical direction so as to be orthogonal to the arm 404 and supported by being connected to an end of the arm 404, And a fixing base 407 that is fixed to the housing 10 so as to be vertically movable.

  As shown in FIG. 15A, when the welding unit 40 turns so that the heater 401 is positioned above the table 201, the mast 406 enters the housing 10 as shown in FIG. 15B. The abutting portion 402 can abut on the folded corner portion C. In addition, since the position where the contact part 402 descends is determined in advance, it is preferable to appropriately set the vertical position of the table 201 of the descending table 20 by the descending table adjusting handle 65.

  Further, as shown in FIG. 16B, the tip of the heater support 403 on the arm 404 side has a slope inclined from the upper side to the lower side toward the heater 401 so that a gap E is formed between the heater 404 and the arm 404. The tip of the arm 404 formed on the side of the heater support 403 has a slope that is gentler than the slope. Due to these inclinations, a gap E is formed, so that the heater 401 can swing up and down about the hinge pin 405 as an axis. That is, the gap E becomes a play allowance for swinging the heater 401. Since the heater 401 can be swung, when the welded portion 40 is lowered and the abutting portion 402 abuts on the corner corner C, the pressing force can be appropriately absorbed, and the packaged item B To prevent undue damage.

(Packaging method)
Next, the packaging method of the article B to be packaged by the tabletop packaging apparatus 1 according to the present embodiment will be described in detail with reference to FIGS. 17 and 18, only the vicinity of the opening 10a is shown, and the packaging material A and the packaged item B are omitted.

  The state shown in FIG. 17A is a state in which the packaging material A is placed on the table 201, the article to be packaged B is placed thereon, and the table 201 is lowered. In the present embodiment, From this state, the packaging method by the desktop packaging apparatus 1 starts. First, in this state, as shown in FIG. 17B, the shutter plate 31a and the side shutter plate 32a are moved in the direction of the opposing shutter plate 31b and the side shutter plate 32b, and the object to be packaged in the opening 10a. Advance to the top of B. By the advancement, the corner portion C1 that is bent in contact with the shutter guide plate 50 of the packaging material A is folded on the package B as shown in FIG. Therefore, the corner portion C1 is folded above the article to be packaged B, and the shutter plate 31a is positioned on the corner portion C1.

  After the corner C1 is folded, as shown in FIG. 17C, the shutter plate 31b and the side shutter plate 32b move in the direction of the opposing shutter plate 31a and the side shutter plate 32a, and the inside of the opening 10a. To advance to the top of the package B. Here, the front end of the shutter plate 31b overlaps the front end of the shutter plate 31a above the article B to be packaged. By the advancement, the corner portion C2 that is bent in contact with the shutter guide plate 50 of the packaging material A is folded above the package B as shown in FIG. Therefore, the corner portion C2 is folded on the shutter plate 31a located on the corner portion C1, and the shutter plate 31b is located on the corner portion C2. That is, the corner C1, the shutter plate 31a, the corner C2, and the shutter plate 31b are stacked in this order.

  After the corner portion C2 is folded, as shown in FIG. 17 (d), the pressing plate 33a swings in the direction of the opposing pressing plate 33b and advances to the upper side of the package B within the opening 10a. . By the advancement, the corner portion C3 of the packaging material A in a substantially flat shape is folded above the package B as shown in FIG. In this state, the corner portion C3 is pressed downward by the pressing portion 332 of the pressing plate 33a. Therefore, the corner portion C3 is folded on the shutter plate 31b positioned on the corner portion C2, and the pressing plate 33a is positioned on the corner portion C3. That is, the corner corner C1, the shutter plate 31a, the corner corner C2, the shutter plate 31b, the corner corner C3, and the pressing plate 33a are stacked in this order.

  After the corner portion C3 is folded, as shown in FIG. 17 (e), the pressing plate 33b swings in the direction of the opposing pressing plate 33a and advances to above the package B within the opening 10a. . Here, the pressing plate 33b has a pressing portion 332 partially overlapping the pressing portion 332 of the pressing plate 33a above the article to be packaged B, and an insertion port 334 is formed. By the advancement, the corner portion C4 in the substantially flat shape of the packaging material A is folded above the package B as shown in FIG. In this state, the corner portion C4 is pressed downward by the pressing portion 332 of the pressing plate 33a. Accordingly, the corner portion C4 is folded on the pressing plate 33a positioned on the corner portion C3, and the pressing plate 33b is positioned on the corner portion C4. That is, the corner C1, the shutter plate 31a, the corner C2, the shutter plate 31b, the corner C3, the pressing plate 33a, the corner C4, and the pressing plate 33b are stacked in this order.

  After the corner portion C4 is folded, as shown in FIG. 18 (f), the shutter plate 31a and the side shutter plate 32a are retracted to the original positions, thereby the corner portion on the corner portion C1. C2 is folded. Thereafter, as shown in FIG. 18G, the shutter plate 31b and the side shutter plate 32b are retracted to the original positions. Therefore, below the insertion port 334, only the corner portion C1 to the corner portion C4 are stacked.

  After only the corners C1 to C4 are stacked below the insertion port 334, as shown in FIG. 18 (h), the weld 40 turns to a predetermined position and descends, The contact portion 402 of the heater 401 is inserted into the insertion port 334, and heat welding, that is, heat sealing is performed on the laminated portion. Since some of the corner portions C1 to C4 are pressed by the pressing portion 332, heat sealing can be performed with extremely high accuracy. After heat sealing, the welded portion 40 rises and pivots to the original position as shown in FIG. 18 (i). As shown in FIGS. 18 (j) and 18 (k), the pressing plate 33a, 33b swings to the original position, and the packaging of the article to be packaged B is completed. In addition, the code | symbol F shown by FIG.18 (i)-FIG.18 (k) has shown the location where the corner | angular part C1-C4 was folded and heat-sealed.

  Next, specific internal configurations of the various components described above of the desktop packaging apparatus 1 according to the present embodiment will be described in detail with reference to FIG. It should be noted that the power switch 61, the temperature control switch 62a, the heater adjuster 62b, the welding portion adjusting handle 62c, the one cycle switch 63, the inching switch 64, the stop / reverse switch 66, the fuse 67, and the power cord 68 described above. Since a specific apparatus configuration inside the apparatus 10 is a general one, its description is omitted in this specification.

  As shown in FIG. 20, in the housing 10, the shutter plate 31, the side shutter plate 32, the pressing plate 33, and the rotation transmission shafts 801 a to 801 d for driving the welding portion 40 (hereinafter, these are not distinguished). (Referred to as a rotation transmission shaft 801) is arranged in a square shape along the wall surface of the housing 10, and is rotatably supported by the bearing 801e. A motor 802 for rotating the rotation transmission shaft 801 is connected to one end portion of the rotation transmission shaft 801a. The motor 802 rotationally drives a gear 802a provided on its own rotation transmission shaft in accordance with the operation of the one-cycle switch 63, the inching switch 64, the stop / reverse switch 66, etc., and the gear 802a. And one end of the rotation transmission shaft 801a are connected via a joint 803. Further, bevel gears 804 are provided at the ends adjacent to each other in the rotation transmission shaft 801, and the rotational motion of the motor 802 can be transmitted to each rotation transmission shaft 801.

  The rotation transmission shaft 801a is provided with a pressing cam 805a for swinging the pressing plate 33a, a turning cam 805b for turning the welding portion 40, and a lifting cam 805c for raising and lowering the welding portion 40. ing. The pressing cam 805a is provided with a hook 806, and the hook 806 is connected to a crank mechanism 807a connected to the pressing plate 33a. The crank mechanism 807a is constructed so as to horizontally move the connecting portion with the presser plate 33a in conjunction with the movement of the presser cam 805a. By such a link mechanism comprising the cam and crank, the rotation transmission shaft 801a The rotational motion is converted into a horizontal motion in the YY ′ direction of the pressing plate 33a. In addition, since one end of the pressing plate 33a is connected to the rotating shaft 331a fixed in the housing 10, the connecting portion with the crank mechanism 807a located above the rotating shaft 331 serves as the crank shaft 331a. By swinging horizontally in conjunction with this movement, the other end formed with the pressing portion 332 and the like is swung.

  Similarly, the turning cam 805b and the raising / lowering cam 805c are also connected to a crank mechanism connected to the welding portion 40 (not shown), and the crank mechanism converts the rotational movement of the rotation transmission shaft 801a to the turning motion and the raising / lowering of the welding portion 40. Built to convert to movement. The above-described welded portion adjusting handle 62c is connected to the crank mechanism, and can be appropriately driven by rotating it manually.

  The rotation transmission shaft 801b is provided with a shutter cam 805d for horizontally moving the shutter plate 31a and the side shutter plate 32a. The shutter cam 805d is provided with a hook 806, and the hook 806 is connected to a crank mechanism 807b connected to the shutter plate 31a and the side shutter plate 32a. The crank mechanism 807b is constructed so as to horizontally move the shutter plate 31a and the side shutter plate 32a in conjunction with the movement of the shutter cam 805d. The link mechanism including such a cam / crank makes it possible to rotate the rotation transmission shaft 801b. The rotational motion is converted into a horizontal motion in the XX ′ direction of the shutter plate 31a.

  The rotation transmission shaft 801c is provided with a pressing cam 805e for swinging the pressing plate 33b. Similar to the pressing cam 805a, the pressing cam 805e is provided with a hook 806, and this hook 806 is connected to a crank mechanism 807c connected to the pressing plate 33b. The crank mechanism 807c is constructed so as to horizontally move the connecting portion with the presser plate 33b in conjunction with the movement of the presser cam 805e. By such a link mechanism comprising the cam and crank, the rotation transmission shaft 801c The rotational motion is converted into a horizontal motion in the YY ′ direction of the pressing plate 33b.

  The rotation transmission shaft 801d is provided with a shutter cam 805f for horizontally moving the shutter plate 31b and the side shutter plate 32b, and a one-cycle completion cam 805g. Similar to the shutter cam 805d, the shutter cam 805f is provided with a hook 806, and the hook 806 is connected to a crank mechanism 807d connected to the shutter plate 31b and the side shutter plate 32b. The crank mechanism 807d is constructed so as to horizontally move the shutter plate 31b and the side shutter plate 32b in conjunction with the movement of the shutter cam 805f. The link mechanism composed of such a cam / crank is used for the rotation transmission shaft 801d. The rotational movement is converted into a horizontal movement in the XX ′ direction of the shutter plate 31b.

  The one-cycle completion cam 805g hits a limit switch 808 provided in the housing 10 in response to the rotation of the rotation transmission shaft 801d. When this limit switch 808 is hit, one cycle, that is, one package Assuming that the packaging of the item B is completed, the rotation drive of the motor 802 is stopped.

  The various cams described above are cut so that each component is sequentially driven. In this embodiment, the shutter cam 805d, the shutter cam 805f, the pressing cam 805a, the pressing cam 805e, the turning cam 805b, the lifting cam 805c, Various cams are formed so that the connected crank mechanisms are driven in this order, and the respective constituent elements are moved from their original positions to predetermined positions. In addition, the various cams drive the connected crank mechanisms in the order of the lifting cam 805c, the turning cam 805b, the shutter cam 805d, the shutter cam 805f, the pressing cam 805a, and the pressing cam 805e, and move each component from the predetermined position to the original position. It is formed to move up to.

(Application examples)
In addition, in this Embodiment, although demonstrated that the corner | angular corner part C of the packaging material A was folded, it is not limited to this, If it is an edge part of the packaging material A, which part (for example, edge | side) But it goes without saying that it can be folded. In addition, as long as it can be placed on the table 201, not only single packaging but also multiple simultaneous packaging may be performed. Furthermore, although the descent | fall base 20 is provided with the spring 23 as an elastic body, it should just be an elastic body which has not only this but elastic force, such as rubber | gum. Further, although the pressing plate 33 has been described as S-shaped, it is only necessary that the pressing portion 332 is formed so that the corner portion C can be accurately bent. For example, an L-shape whose end is directly connected to the rotating shaft 331a. It may be.

  In the present embodiment, it has been described that the shutter plate 31 and the push-in plate 33 are provided. However, only the shutter plate 31 may be provided on all four sides of the table 201, or only the push-in plate 33 may be provided on all four sides. When the push-in plate 33 is provided on all sides, it is not necessary to bend the two ends of the packaging material A when the package B is lowered, so the shutter guide plate is not necessary, and the opening 10a may be formed wide. . When the shutter plate 31 is provided in all directions, the notches 333 may be provided in at least the pair of shutter plates 31 facing each other in the same manner as the push-in plate 33.

  Further, in the present embodiment, it has been described that the shutter plate 31b and the side shutter plate 32b move after the shutter plate 31a and the side shutter plate 32a move. However, which moves first is appropriate and moves simultaneously. A link mechanism may be constructed. The same applies to the push-in plate 33. Moreover, if adhesives, such as glue, have adhered to the corner | angular corner part C of the packaging material A previously, you may make it package more rapidly except the welding part 40. FIG.

  As described above, according to the present embodiment, the corner C of the packaging material A can be accurately folded by the shutter plate 31, the side shutter plate 32, and the pressing plate 33 that advance from four directions. The packaging material A is manually placed on the table 201, the article B to be packaged is placed on the table 201, and the one-cycle switch 63 is pressed down. The workability is extremely good and hygienic. Furthermore, in addition to such a folding method, since the packaging material A is heat-sealed above the package B, a wide variety of packages, including soft pastries that are difficult to package, can be easily and without damage. Can be packaged.

  Further, since the drive mechanism is constructed by a mechanical system of a cam / crank / link mechanism and a bevel gear 804, the drive mechanism can be surely driven and has excellent durability and light weight (for example, the number of parts of the link mechanism is 6 cams). And 5 to 6 cranks). Moreover, since it is the method of heat-sealing the packaging material A above the to-be-packaged goods B by providing the component mentioned above, an apparatus structure can be simplified. For example, the size of the casing can be 400 mm in the horizontal direction in the XX ′ direction, 350 mm in the vertical direction in the YY ′ direction, 200 mm in the vertical direction, and the weight can be 15 kg. be able to. Therefore, since it is small and lightweight, it can be installed on a table such as a work table or carried around, and a compact device that can be used even in a small-scale store can be obtained.

  According to such a simple drive mechanism, even when viewed from the point that no air cylinder or the like is used for the drive part, the equipment cost is about 1/3 to 1/4 compared with a continuous device provided by a large company. A packaging device can be introduced. Further, according to the present embodiment, energy saving can be realized. For example, if the motor 802 is driven at 25 w and the heater 401 is driven at 120 w (130 ° C.), the energy consumption is extremely low at AV 100 V × 135 W. In addition, since the heater 401 sets temperature suitably according to the material, shape, etc. of a to-be-packaged material and a packaging material, it cannot be overemphasized that it is not limited to numerical values, such as the said temperature.

  According to the desktop wrapping apparatus 1 according to the present embodiment, one packaged item B can be wrapped in 2 to 3 seconds (excluding manual placement and removal work), and is about 20 to 30 pieces / minute. Has the production capacity of Therefore, it is possible to realize a production capacity not inferior to that of a continuous apparatus. In addition, since it can perform packaging at the same level as a major manufacturer, it has the capability that small companies such as private stores can handle, for various types and small quantities. Furthermore, it can be packaged regardless of the shape of the article to be packaged B. Examples of the shape include round, square, and rectangular cube foods such as a cylindrical shape, a cone shape, a rectangular parallelepiped shape, a cube shape, and a dango shape.

  Further, when there is a deficiency in the operation of the tabletop packaging apparatus 1 due to external factors or the like, or when adjusting the operation, the welding part adjusting handle 62c, the inching switch 64, and the stop / reverse switch 66 are operated appropriately. Since the rotation of the motor 802 can be controlled, the operations of the shutter plate 31, the side shutter plate 32, and the push-in plate 33 can be arbitrarily controlled.

1 Desktop packaging equipment (packaging equipment)
DESCRIPTION OF SYMBOLS 10 Housing 10a Opening 20 Drop base 203 Spring (elastic body)
206 Adjustment frame (adjustment unit)
31, 31a, 31b Shutter plate (folding part, moving plate)
32, 32a, 32b Side shutter plate (folding part, movement auxiliary plate)
33, 33a, 33b Presser plate (folding part, swing plate)
332 Pressing part (pressing part)
333 Notch (insertion hole forming part)
334 Insertion hole (insertion hole)
40 welding section 50 shutter guide plate (moving plate guide)
50b Guide port (Guide hole)
401 Heater (heat generating part)
402 Contact part (heat generating part)
403 Heater support section 404 Arm 405 Hinge pin (swing support section)
406 Mast 407 Fixing base 801a-801d Rotation transmission shaft 802 Motor 804 Bevel gear 805a, 805e Pressing cam (second link mechanism)
805b Rotating cam (first link mechanism)
805c Elevating cam (first link mechanism)
805d, 805f Shutter cam (second link mechanism)
805g One cycle completion cam 807a, 807b, 807c, 807d Crank mechanism (second link mechanism)
A Packaging material B Packaged items C, C1, C2, C3, C4 Corner

Claims (13)

A housing with an opening on the top surface;
The packaging that is provided in the opening and is lowered until the packaged article is immersed in the opening in a state where the sheet-shaped packaging material is placed and the packaged article is placed on the packaging material. A lower platform than the wood,
After at least two ends of the packaging material protruding from the descending table as a result of the descending table descending are brought into contact with the edge of the opening and folded upward, the folded end in the opening And a folding unit that folds the end part so as to cover the upper surface of the article to be packaged by moving toward the part. The end of the packaging material is a corner of the packaging material,
The folded portion is
A pair of oscillating plates that are supported in the housing so as to oscillate so as to draw an arc from below or from above to below and to approach or separate from each other;
A pair of moving plates supported in the casing so as to be able to reciprocate so as to approach or separate from each other in a direction perpendicular to the surface formed by the swinging of the pair of swinging plates;
When the pair of moving plates move in a direction approaching each other, they contact a folded corner corner located on one diagonal of the packaging material, and further move in this direction by moving in the direction. Fold the corners together,
The pair of oscillating plates oscillate in a direction approaching each other to come into contact with a corner corner located on the other diagonal of the packaging material, and further oscillate in this direction to cause the corner The packaging device according to claim 1, wherein the parts are folded on each other. The pair of moving plates move in a direction in which one of them approaches each other, and after the movement is completed, the other moves in the direction until one end portion thereof overlaps with each other,
The pair of swing plates swings in a direction in which one end of the pair of moving plates overlaps each other and then approaches one another, and after the swing ends, the other ends until the one end overlaps each other. The packaging apparatus according to claim 2, wherein the packaging apparatus swings in the direction. In a state where the pair of swing plates are close to each other, further comprising a welding portion for thermally welding the folded portion of the packaging material,
The pair of moving plates move in a direction away from each other prior to heat welding by the welding portion,
The pair of oscillating plates are formed with an insertion hole forming portion for forming an insertion hole through which the welded portion can be inserted in a state in which the pair of swing plates are close to each other. Packaging equipment. The welded portion is
A heat generating portion that is in contact with the folded portion and thermally welded;
A support part for supporting the heat generating part so as to be lowered;
The packaging apparatus according to claim 4, further comprising a swing support portion provided between the heat generating portion and the support portion and supporting the heat generating portion so as to be swingable upward. The rotational movement of one motor is the rotational movement of the support part for turning the heat generating part upward from the predetermined reference position to the upper part of the lowering base, the lowering and raising of the supporting part, and the heating part is moved to the lowering base. The packaging apparatus according to claim 5, further comprising a first link mechanism having a cam and a crank for converting into a rotational motion of the support portion for turning from above to the reference position. A second link mechanism having a cam and a crank for converting a rotational motion of one motor into a swinging motion of the pair of swing plates and a reciprocating linear motion of the pair of moving plates; The packaging device according to any one of claims 2 to 6, characterized in that In the housing, four rotation shafts are provided to form a quadrangle,
Bevel gears are provided between adjacent rotating shafts so that the four rotating shafts can rotate simultaneously by the rotation of the motor,
One of the pair of swing plates is connected to a second link mechanism provided on one of the four rotation shafts, and the other is connected to a second link mechanism provided on a rotation shaft facing the rotation shaft. Concatenated,
One of the pair of moving plates is connected to a second link mechanism provided on one of the rotating shafts perpendicular to the pair of swing plates and the rotating shaft connected via the second link mechanism, and the other is , Connected to a second link mechanism provided on the rotating shaft facing the rotating shaft,
The rotation of the motor causes each of the pair of swing plates and each of the pair of movable plates to swing or move individually. 8. Packaging equipment. Provided at a position spaced from the side surface of the moving plate so as to sandwich at least one of the pair of moving plates, and moves in the same direction in conjunction with the horizontal movement of the moving plate, and the corner portion by the moving plate The packaging device according to any one of claims 2 to 8, further comprising a pair of movement assisting plates that come into contact with the end portions of the corners so as to assist folding. The pair of movement assisting plates are plate-like members provided perpendicularly to the lower surface of the moving plate and below the lower surface,
The packaging apparatus according to claim 9, wherein tips of the moving plates in the direction approaching each other protrude from tips of the pair of movement assist plates in the direction. A pair that is bent so as to enter from the upper surface of the housing into the opening and is opposed to each other, and guides the pair of moving plates so as to move in the direction approaching each other at the part that enters the opening. The packaging apparatus according to any one of claims 2 to 10, further comprising a moving plate guide portion in which a guide hole is formed. The pair of swing plates is an S-shaped or L-shaped crank member having a pressing portion that presses a corner portion folded in a state of being close to each other downward from above. The packaging device according to any one of claims 2 to 11. The descending table is supported by an elastic body that can be compressed by its own weight.
The packaging device according to any one of claims 1 to 12, further comprising an adjustment unit that adjusts the elastic body to be movable up and down.

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