JP2007238125A - Manufacturing process of package - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To manufacture a new rectangular parallelepiped package to be efficiently stored in a delivery container such as a corrugate cardboard case with little loss of its shape from the time an item is packaged using a packaging film by a packaging machine until it is displayed at a dealing store. <P>SOLUTION: In forming a bottom box part formed first with a side face on the four sides of a bottom face and then with a seal area for bonding a top cover in the outside direction of the top periphery of the side face by a packaging machine, one sheet is folded, the key position of the folded part is spot sealed, etc. and the top of the side face is folded outward for forming the seal area for bonding the top cover. A content to be packaged is placed inside, its top face is covered with a wrapping film for the top cover and its periphery is heat sealed to the seal area at the top of the bottom box part for finishing packaging. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  In the present invention, the packaging of snack confectionery produced and sold in large quantities is mostly products of the packaging form called a pillow type by a vertical packaging machine using a conventional winding-type packaging film. While there are many products and sales competition is intense, an attempt is made to bring out a feature that attracts consumers' interests, and as one of them, as a differentiation by packaging form, gusset type and some other products have been developed and lined up in stores. The ratio is gradually increasing, but further relates to the production of novel packaging that the market demands.

  Traditionally, this type of product is also packaged and provided in units of price, weight, etc. so that consumers can easily find it like other products. Especially, it handles a lot of products such as snack snacks that are light and bulky. At the same time, with the cost and efficiency of packaging in mind, a pillow type configuration is used with a vertical packaging machine that has a proven track record, is easy to handle, and generates little packaging loss. A film made by laminating several types of synthetic resin films, etc., which are used for the purpose of preventing deterioration due to moisture absorption, oxidation, ultraviolet rays, etc. before being consumed was used. Snack confectionery was also used for other biscuits, chocolate, Compared to candy and other confectionery, the production process is relatively simple and the equipment is up and down, but there are many complicated and expensive equipment, the number of producers is large, and the products are the same or similar. Most of the products are highly competitive, paying constant attention to the exterior design in order to bring out a few features, changing the shape of molded snacks, and further examining consumption trends and reconsidering the seasoning However, the results of new sales promotions that are similar, universal, and more popular with consumers are not as much as expected at present.

  It is considered that reviewing the packaging form in this environment and appealing to consumers is one part of this, and a packaging form such as a gusset type was devised. This packaging form is one of the vertical packaging machines for pillow packaging. It is possible to make and package bags by remodeling parts and adding parts, but compared to pillow type packaging, the packaging capacity is reduced and packaging loss is increased. There is a problem that it is difficult to maintain the product until it is displayed at the store and delivered to the consumer. In addition to materials that can be used for packaging, the structural functions of the packaging machine have been improved, and the gusset-type packaging using the vertical packaging machine has been considerably improved in shape compared to the past. Ratio at dealers While increasing progressively further, new topicality and Packaging with surprising has been demanded.

  However, in the case of low-priced snacks, etc., in addition to the cost required for direct packaging, the product is delivered to the retailer in units of a predetermined quantity and packed in a shipping container such as cardboard. Therefore, if the volume is the same, gadget-type packaging with a cylindrical body in the shape of a square tube will have more dead space between packaging bags than pillow-type packaging with a similar shape to a pillow, and there will be less dead space. Although it was advantageous in terms of storage cost, it was displayed in a stand-alone state and attracted more attention from consumers than the pillow type, which is often stacked on display at the store or struck from the back. Although it was evaluated, etc., although the degree of shape loss that occurred during packing from the case packing to the delivery container was improved, it took more time to prepare the shape than the pillow type There was a problem.

  In order to keep up with the above problems, we will develop content products in order to keep up with competing competitors, pursue new packaging styles, and use a packaging machine to wrap the bottom box by using a wound packaging film. After forming and storing the contents in this package, the upper part of the package is covered with a separately prepared roll-up top cover film, and its periphery is adhesively sealed. The storage efficiency has also been improved and can be delivered to the dealer in a well-organized form, which has the effect of effectively contributing to a reduction in total cost.

  There are various kinds of raw materials used and manufacturing methods, and the shape, bulk specific gravity, etc., and many varieties of snack confectionery are improved in eating habits, and although they are said to be a surplus junk food, they are produced and sold in considerable quantities, but they are consumed. Although the eyes of consumers are severe, it is important and appropriate to keep an eye on changes in consumer preferences and capture their interests, but the products in the form of this application are similar products that are displayed in stores. Even if it is inside, it can be easily distinguished by the novelty of the shape, and if there is no problem with the content product, it will contribute to sales promotion, and the accommodation efficiency of the cardboard case which is the delivery capacity will also be improved compared to the gusset type packaging product There is also an advantage that the cost can be reduced.

  Prior to packaging the product, calculate the required volume from the selling price, bulk specific gravity, etc. according to the item to be packaged (hereinafter referred to as the packaged product), determine the basic vertical and horizontal height dimensions, and package based on this Prepare the machine and components, and design the product name, features, etc. using materials such as photographs and illustrations on the material that is also suitable for the purpose of maintaining the quality of the product, and stipulated in the Food Sanitation Law such as ingredient list, producer name, etc. Along with the matter, a registration film is printed for each bag and a winding film slit to a predetermined width is mounted on a packaging machine, and this is cut at every pitch (hereinafter referred to as a sheet) in synchronization with the progress. Bend a specified position with a packaging machine, fold it back, tilt the side face around the bottom and its surroundings, and then tilt the top of the side face outward to form the bottom box with the top lid adhesive part first, and then put the product in Adhesive seal the upper lid.

  In the present embodiment, the package forming the rectangular parallelepiped in the first embodiment is rectangular and the short side thereof is the traveling direction, the same reference numerals are used for the same parts in the embodiment, and the figure is abbreviated to avoid line complications. Although there is a part which was made visible, it will be as follows if it demonstrates based on FIGS.

FIG. 1 is an overall view for explaining the outline of a packaging machine 1 according to an embodiment of the present invention in a perspective view, and devices and parts facing each other are shown avoiding overlapping lines. FIG. An embodiment of the package manufactured according to the invention is shown in a perspective view, and the outer dimension is the inner dimension of the bottom box part 3 on the upper surface of the bottom receiving base 2 having the same dimension as the outer dimension of the bottom part of the package to be formed. A side surface forming plate in which a bottom box portion inner side forming frame 4 having a height obtained by subtracting the thickness of the sheet from the height of the bottom box portion is provided, and the shape of the inner side surface of the bottom box portion 3 to be formed is provided on the outer peripheral portion. The bottom surface and the side surface are formed between the inner side surfaces of the side surface forming plate, and the seal portion forming frame 5 shown in FIG. The upper part is folded outward to form a seal part for adhering the upper lid 6.

  This type of sheet is usually more elastic and repellent than paper etc., and even if it is bent and pressed so that it is horizontal across a vertical sheet, a certain amount of bending wrinkles will remain when the contact surface is separated, Depending on the physical properties of the sheet, the end part will not jump up and become almost horizontal, but it should be noted that it is necessary to select and use a sheet that is more likely to be creased. In forming the film, the upper surface of the side surface forming plate is inclined so that a bending wrinkle is attached at an angle of 90 degrees or more within a range in which no problem such as damage occurs in the bent portion.

  Further, the height of the inner side surface on the long side of the side surface forming plate shown in FIG. 5 is the same as the height of the bottom box portion 3 to be formed, and the outer side is increased by the bending angle determined in consideration of the physical properties of the sheet to be used. The length of the long side of the side surface forming plate is determined based on the lower end of the outer dimension of the bottom box 3 in the longitudinal direction, and a line with an angle of 45 degrees obliquely upward in the extension direction is assumed both forward and backward, The position up to the point where it intersects with the line of the upper edge of the inner side which is the side of the bottom box part 3, and the position where the seal width dimension for bonding the top lid is added to the extending direction from the base point shown in FIG. The normal triangle formed by the above-mentioned diagonally upward 45 degree line is inverted 180 degrees with respect to the perpendicular S as an axis, and the above-described position is the intersection of the oblique side and the upper edge of the side surface forming plate. The long side-side side surface forming plate that has determined the overall length is cut vertically and produced by cutting with the central side surface forming plate 8 Additional machining to be described later in the section sides forming plate 9,9 is although distribution at a position along a long side aligned lower surface at the center distributing a configuration in which divided into three parts on the upper surface of the bottom cradle 2.

  In order to adhere the upper lid of the upper part of the side forming plate 10 on the short side in the front-rear direction, the part to be folded has a cross-sectional shape similar to that of the side plate on the long side. The surplus portion of the sheet generated at each corner portion is folded into a regular triangle shape, but the shape necessary to make a contact portion for attaching a crease is added to the hypotenuse portion of FIG. As shown in Fig. 1, the cross-sectional shape is integrated, and the width of the bottom box 3 is obtained by subtracting the thickness of the four sheets from the width. When forming the bottom box 3 that is aligned with the upper surface and along the short side, each side surface forming plate is arranged with its inner lower part as a fulcrum, with the upper part opened outwards, and an inclined structure. The side surface forming plate 10 on the short side on the Y side in FIG. 5 is divided into two parallel to YY ′. And X side, showing a state where the side surface forming plate 9, 9 is inclined in the Y-side of the long side, the other side forming plate shows the previous state inclined.

  Further, the lower surface of the above-described seal portion forming frame 5 disposed immediately above the side surface forming plate is angled with a width opposed to the seal portion forming surface on the upper surface of each side surface forming plate. The bottom box 3 formed at the end of the packaging process is raised to a position higher than the top of the side surface forming plate, and thereafter, the top is always the same as the top of the bottom cradle 2 and formed The belt-type bottom pedestal mounting / transfer section 7 which floats slightly when the 3 is sent to the next process is placed on the inner side of the inner side of the bottom box part inner formation frame 4 so as not to contact each other. As shown in FIG. 6, an end portion is provided at the lower portion of a point (same as the above-described perpendicular line S) that is provided in the range and that is on the inner side where the central side surface forming plate 8 and the end side surface forming plates 9 and 9 are in contact with each other. The folding shaft 11 is provided at a position coincident with the axis.

  The end folding shaft 11 is formed in the corner portion with a width dimension slightly narrower than the seal width of the upper lid bonding and a height slightly longer than the dimension obtained by adding the seal width to the height of the side surface of the bottom box portion 3. Attach to the upper part of the shaft with the midpoint of the two ends of one side of the thin and elastic metal thin plate sandwiching the equilateral triangle part of the sheet aligned with the center of the axis of rotation. In the above description, the external force is removed when the upper part is expanded and lifted to some extent by external force. In the above explanation, the dimensions of each part are set to zero, but in reality the final shape and use of the package The dimensions shall be given a suitable allowance depending on the physical properties of the packaging film to be used and the packaging speed.

With the function and structure as described above, the bottom cradle 2 is raised from the inner lower part of the side surface forming plate to the upper part slightly above the upper edge of the side surface forming plate, and the bottom is formed between the bottom box part inner side forming frames 4 positioned on the upper part. A roll-shaped bottom box forming film 12 mounted on the packaging machine 1 on the basis of the determined specifications at a predetermined accurate position on the upper surface of the cradle 2. According to the packaging cycle, the printed registration mark 14 is detected by the registration mark detection sensor 15 by the delivery roller 13 and fed one bag at a time, cut by the cutter 16, and the sheet F is stopped by the sheet supply conveyor 17 (not shown). 4 is sent to the state shown in FIG. 4, the bottom box portion inner forming frame 4 is lowered, and is brought into contact with the bottom receiving base 2 via the sheet F so as not to be displaced. It is lowered and stopped at the initial position where the upper surface of the bottom cradle 2 is flush with the lower surface of the side surface forming plate.

  5 and 6 illustrate the process in which the bottom box 3 proceeds from the state shown in FIG. 4 and the bottom and side surfaces are formed on the top surface of the bottom cradle 2. FIG. 5 illustrates the operation of the side surface forming plate. FIG. 6 shows the process of changing the shape of the sheet F between the corners in order divided into four for each corner. In each figure, the corner changes are in the same range of timing.

  When the sheet F is fed into the upper portion of the bottom cradle 2 as shown in FIG. 4, the side surface forming plate is slightly shorter than the end side surface forming plates 9, 9. The side side surface forming plate 10 is inclined to the outside by about 45 degrees. The central side surface forming plate 8 is promptly moved as soon as the sheet F descends and passes through the upper edge. 2 is moved down together with the upper sheet F and the bottom box portion inner forming frame 4 and returned to the old position, and the end side surface forming plate 9 at a timing slightly different from the old position. 9 is returned to the old position, and an excess portion of the sheet F generated at each corner during this operation is provided on the bottom box portion 3 at a height around the upper portion thereof on an extension of the side surface portion on the long side. Folded into a regular triangle with the height of the top cover plus the width of the top cover and the long side as the hypotenuse The side face forming plate 9 is again inclined in the same direction as the last time, and the regular triangular shape is formed between the two plates of the end turn-back shaft 11 waiting in the lower part in the process. 5 is stopped by raising the upper edge to the upper edge while sandwiching the portion of the portion, and performing spot sealing with a small-diameter spot seal 18 at the end of the equilateral triangular portion folded in between. The state of both side surface forming plates at the time is shown, and XY in FIG. 6 shows the state of the sheet formed so far.

  When the end portion is spot-bonded, the end folding shaft 11 is placed on the outer surface of the bottom box portion 3 formed so far with the end portion of the regular triangle sandwiched between the plates. As shown by attaching an arcuate arrow to the lower portion of the end folding shaft 11 described in the above, the end side surface forming plate 9 on the long side that has been tilted is rotated 180 degrees along the parallel direction, Y-O-X 'shows the process between X-O-Y shown in FIGS. 5 and 6 for returning to the old position and pressing the folded equilateral triangle, and FIG. 5 and 6, X′-O-Y ′ in the middle of the rotation indicates the state at the end of this operation, and X-O-Y ′ in FIG. The state is shown in which the end folding shaft 11 is lowered to the standby position and returned to the old position.

  The turning operation of the end turn-back shaft 11 is performed at the attachment portion of the end side surface forming plate 9 on the long side with the axis S as the center. In this state, the X-O-Y 'R in FIG. 5 is arranged so that the circular arc surface is vertical with a radius that does not hinder the rotation of the plate in plan view about the axis of the end folding shaft 11 on the lower surface. However, there is no influence on the formation of the top lid adhesive part of the bottom box part on the upper surface, and the semicircular additional work part does not reach the upper surface. If the end side surface forming plate 9 on the long side is returned to the old position, the plate of the end folding shaft 11 comes into contact with the inner side of the end side surface forming plate 9, so that the additional processing of the cut is sandwiched between the parts indicated by M and the sheet to be made next So that the end folding shaft 11 can be pulled out downward together with the plate Also consider it.

  The end side surface forming plate 10 on the short side also needs an additional process of dividing the portion that contacts when the end folding shaft 11 is lifted. Since the process is performed after returning, a slight margin is provided in the width and thickness directions so that the rising of the end folding shaft 11 is not hindered at the position of the portion N. Considering that the upper part of the plate is open, additional work to divide it down into the state to prevent obstacles when rising, these additional work is also part, operation, timing, etc. for each other part divided into four parts It is common.

  Next, the adhesive portion of the upper lid is formed. In the process so far, the seal margin is in an upright state at the upper part of the side surface sandwiched between the bottom box side surface forming frame 4 and the side surface forming plate. In order to form the seal portion by pressing the lower surface of the seal portion forming frame 5 that is lowered in a state where the upper surface is not slack or wrinkled, an upright seal margin is formed on the upper surface of the side surface forming plate prior to pressing. It is necessary to fold it down so that the seal portion forming frame 5 is lowered by the long side bending guide 19 and the short side bending guide 20 mounted on the lower surface of the frame 5 until the contact is made.

The long side and the short side of the seal portion forming frame 5 are integrated at the same time and operate in the same manner, but are partially different, and will be described separately. FIG. 7 shows the bottom box portion formed in this embodiment. FIG. 8 shows a side view XX of the side, A is a standby position before the side surface forming plate and the seal portion forming frame 5 are operated, B is a lower side of the long side that starts operating and descends by h1 from the standby position. The lower part of the bending guide 19 is in contact with the upper edge of the seal margin of the sheet, C further descends and descends the distance shown by h2 from the standby position, and the state where the seal margin is tilted horizontally further descends by h3. In D , the lower surface of the folding guide 19 shows a state where the mutual surfaces are in contact with each other over 90 degrees. When the lower surface of the folding guide 19 is in contact with the upper end of the bottom box portion inner forming frame 4 while being bent as described above, The angle gradually changes as it descends, and at the end, the side forming plate has the same angle and the seal It abuts against the upper surface of the side forming plate through.

FIG. 9 sequentially shows the operation of the bending guide 20 on the short side indicated by arrows YY in FIG. 7, and the difference from the long side is that the sheet overlaps at the corners of the four sides. shows an arc of Figure 7 without trouble caused wrinkles and tear on this part, for a groomed shape as seen in the frame of the corner, between the a ~ B of FIG. 9 a ~ shown in FIG. 8 Same as the long side of B , but when the height of h2 shown in C descends and the seal margin becomes horizontal, the tip comes into contact with the folded corner and the width is on both sides of the bottom box part in plan view. A thin metal corner molding plate 21 made of a thin metal with a narrower shape than the size plus the seal allowance and cut into a trapezoidal shape by cutting it forward at an angle of 45 degrees inward. Attached with a slight gap along the lower surface of the bending guide 20 on the side, the upper lid contact Sealing surface comprising a wear part defeat folding of the seal portion shown in C in FIG. 9 folding guide 20 in the lower box portion inside formed frame 3 descends in the same manner as the formation of the sealing surface of the long side 8 is in contact with The corner forming plate 21 gradually enters the lower side of the sealing surface from B to C , thereby adjusting the corner portion and completing the formation of the upper lid bonding portion in D , and the sealing portion forming frame 5 is located at the old position. In this case, the corner forming plate 21 is retracted prior to the return of the seal portion forming frame 5 without causing deformation or damage to the formed sealing surface and without hindering its rise.

  Next, the bottom box portion inner forming frame 4 is pulled upward within the range of the height, and the seal portion forming frame 5 in the ascending process also serves as a hopper, and the products weighed from the top are put into the bottom box portion 3. Then, the rear seal portion forming frame 5 is returned to the old position, and the bottom cradle 2 is positioned higher than the upper edge of the side surface forming plate together with the bottom box portion inner forming frame 4 in a state where the bottom box portion 3 storing the product is placed. The bottom box portion inner forming frame 4 is further raised and stopped slightly while the bottom box portion inner transfer frame 7 is placed on the bottom stand portion 3 at the bottom of the bottom box portion 3. Although it raises until it separates from the upper surface of the cradle 2 and sends it to the next process, since the delivery distance of the transfer part is restricted by the size of the bottom cradle 2, until the center of gravity shifts to the upper part by providing the relay stand 22 After the bottom box 3 is transferred, the bottom box 3 is surrounded by a bottom box holding frame 24 from the four sides. While ensuring the geometry of the plan view of the part 3, it performs sealing of the upper and proceeds to the next station.

  The sheet used for the top lid of this packaging container is the same as the material that forms the bottom box, or it is used in a flat state, so it is free to use a hard material that is commonly referred to as having a waist, and In this embodiment, the registration mark 25 is printed at a predetermined pitch on the winding film 24 for the wound upper cover prepared in the width of the longitudinal direction, read by the registration mark detection sensor 26, and read by the cutter 27. Cut and positioned with a stopper (not shown), sent by the feed roller 28 and the feed roller 34, covered the top surface of the bottom box 3 and heat-sealed to each other for sealing, and consumed as a sale product Delivered to the person.

  In this embodiment, in order to facilitate the removal of the product, before cutting the film 24 covering the upper portion for each bag, considering the position where the handling is easy, the film is perforated, or A shape similar to the shape of the Katakana letter used for opening a confectionery packaged in a linear carton package is set at an appropriate interval, but with a suitable range of linear, belt-like or shape FIG. 10 shows a state during standby before the operation of inserting the cut line 29 into the linear and rectangular area intermittently connected to the film 24 for the upper lid shown in FIG. Cut the cut die into a film by placing the cut die 30 on the lower side of the sheet and the receiving plate 31 facing the upper side so that each bag is in contact with each other, as shown in the cross-section of the I-I arrow. After processing the 29 holes, the roll-shaped film covering the top The film 35 is prepared and sealed by this. In this case, the film for the upper lid is used after being processed for double-sided adhesion.

If the bottom box 3 formed with the physical properties of the film 35 covering the processed portion of the cut line 29 is equivalent and the bonding is appropriate, there is no fear of ventilation in the vertical direction to the cut line 29, but the bonding is performed in a perpendicular direction. Since moisture and oxygen from the outer surface to the cut part can prevent the ventilation so that there is no risk of deteriorating the contents, the conventional quality can be maintained, so normal on both sides of the cut eyes 29 of the film Perform seal sealing with seal strength, and in the width direction where there is no fear of ventilation on the side that becomes the outer direction, considering the safety margin as well as the picking margin Т for opening, find the width dimension that satisfies the above conditions, Based on this, the dimension of the film 35 that covers the upper part of the cut line 29 is determined, the delivery direction is determined by the work, and it is mounted on the packaging machine 1 as a winding shape, and the registration mark 36 printed on this is registered on the registration mark detection sensor 37. Rank In accordance with the packaging cycle, the sheet is fed by the required pitch feed roller 38, cut by the cutter 39, and fed to the upper part of the cut line 29 of the film 24 as the base by the feed press roller 40 so as not to be displaced and covered. The upper heat sealer 32 and the lower heat sealer 33 of the film are bonded to each other while leaving the picking margin Т for opening, and the mode immediately before the heat seal bonding in the direction of arrow II-II in FIG. Shown in cross section.

  In the meantime, the contents of the bottom box 3 on the relay stand 22 that have been stored are fixed with the bottom box holding frame 23 while properly correcting and securing the outer dimensions and shape deformation that may occur when the outer shape is transferred. The upper lid film 24 covering the upper part of the cut line 29 is cut with a cutter 27 in accordance with the packaging cycle of the packaging machine and placed at a predetermined position with a feed roller 34. The bottom box 3 held by the bottom box holding frame 23 is fed with a stopper for positioning not shown in the figure so as not to be displaced, and the lower side heat sealer 42 slightly lowers the holding frame 24 from the lower side. Adhesive sealing is performed by contacting the upper heat sealer 41 that rises along the outer side with a gap and descends, and FIG. 12 is a cross-sectional view taken along the line III-III in FIG. State of bonded upper lid film 24 Shown, packaging ended above, fed to the next step of the cardboard filling or the like for delivery Without abnormal performs check of air leakage or the like from the weight and the seal portion.

  The opening cut 29 shown in the present embodiment was processed to be wide on the upper surface in consideration of the possibility of using the bottom box part as a tray from the shape of the rectangular parallelepiped and facilitating the removal of the contents. However, when opening, when applying force to the picking allowance T and peeling it off from the surrounding adhesive part, the inner part of the cut eye 29 is also peeled off, but when the cut eye part is reached, the peeling progresses. The upper sealing film 24 serving as the base is cut at the cut portion and proceeds on the outer side, and the inner portion is opened in a state of being bonded to the film 35 covering the upper portion. If it is open and linear, the cut line is exposed in a linear shape, so it is easy to further widen it.

  This unsealing method is not limited to snacks etc., but can be easily applied to other packaging bags, etc. Select the position that can be easily opened according to each form, and the shape to insert the cut eye is also free However, the loss of the film covering the upper part may also occur depending on the shape, so considering the price of the product, the shape of the product to be wrapped, etc. The cost increase due to the above may be considered, and it may be carried out as appropriate. In FIG. 13, a cut bag 29 is formed in a gusset-type packaging bag 43, and the upper part is adhesively sealed with a tape-shaped film 44 leaving a tab allowance T. An embodiment of one example is shown.

  As described above in detail, the package based on the present embodiment is a novel packaging form, and it seems difficult to make bags by remodeling a conventional packaging machine and adding parts, etc. Although the number of points is small and the operation is relatively simple and there is nothing complicated, even if the speed is increased mechanically when forming the bottom box, depending on the physical properties of the film used, the sheet may be locally damaged. Therefore, in that case, prior to the formation of the bottom box part, the packaging film is appropriately braced with a mountain fold or a valley fold in advance by the Thomson method or the like. By reducing the return time, the operation time can be shortened, and the formation of the bottom box part and the product input part, which are difficult to speed up, are prepared in parallel. Adhesive sealing can be performed with a single unit to increase the total capacity. A.

  In addition, there is no problem if the upper part is sealed with a packaging film equivalent to the bottom box part, but there is no problem with using a waisted film or a slip sheet protruding in the front and rear corners of the bottom box part. Although the number of man-hours for the folded part of the surplus part is increased, the shape of the package in the vertical direction can be maintained more reliably by heat-sealing, preventing the loss of shape until it has been placed in the storefront, which has been regarded as a problem, and corrugated cardboard for delivery Containment efficiency when packing cases, etc. is high and contributes to the reduction of logistics costs. It can be opened easily and products can be taken out easily. There is also an effect that leads to.

The whole figure for explanation which shows the outline of the packaging machine of the example of the present invention in perspective by avoiding the complication of the line The perspective view of the package manufactured based on this invention Perspective view of seal part forming frame The bottom box part of the package of the present invention, a perspective view in the standby position of the sheet just before the start of formation The perspective view which showed the process of operation of the side surface formation frame part of bottom box part formation in four divided parts The perspective view which divided the process of the shape deformation of the bottom box part formation sheet and the operation of the end folding shaft into four parts The perspective view of the bottom box part of the package manufactured based on this invention Cross-sectional view for explanation sequentially showing the process of forming the seal allowance on the upper part of the long side of the bottom box Sectional drawing for explanation which sequentially shows the process of seal margin formation at the upper part on the short side of the bottom box Explanatory drawing of the process which puts a cut for opening of the package of this invention Explanatory drawing of the adhesion | attachment operation | movement of the film which covers the cut eyes put for opening of the package of this invention Explanatory drawing of the top cover film adhesion processing operation which covers the upper part of the bottom box part of the package of the present invention A reference example of an unsealing method in which a cut is made in a packaging bag other than the packaging body of the present invention is shown.

Explanation of symbols

1 -Packaging machine, 2-bottom cradle, 3-bottom box part, 4-bottom box part inner forming frame. 5-Seal part forming frame 6-Top cover, 7-Bottom pedestal mounting and transferring part, 8-Long side side surface forming center plate, 9, 9-Long side side surface forming end plate 10-Short side side surface forming plate, 11-end folding shaft, 12-bottom box forming film 13-feed roller, 14-registration mark, 15-registration mark detection sensor 16-cutter, 17-sheet feeding conveyor, 18-spot seal heater 19-long Side bending guide, 20-short side bending guide, 21-corner forming plate 22-relay stand, 23-bottom box holding frame, 24-top cover film, 25-registration mark 26-registration mark detection sensor, 27- Cutter, 28-feed roller, 29-cut 30-cut die, 31-cut receiving plate, 32-cut upper heat sealer 33-cut lower heat sealer, 34-feed Dispensing roller 35-cut upper film, 36-registration mark, 37-registration mark detection sensor 38-feed roller, 39-cutter, 40-feed presser roller 41-top cover bonding upper heat sealer, 42-top cover bonding lower heat sealer 43 -Gazette type packaging bag, 44-Tape-shaped film S-perpendicular, F-sheet, T-knob, H-spot adhesive part, R-end side plate cylindrical additional processing part, M-end side Face plate additional processing section, N-short side side panel side surface additional processing section

Claims (4)

  A bottom box in the form of a rectangular parallelepiped with a single sheet that folds, folds, and folds, forms sides on the four sides of the square bottom, folds the upper part of each side outward, and provides an adhesive on the top lid The package is characterized in that the contents are put into the part, the rear upper part is covered with a sheet for sealing the upper lid, and the periphery is adhered and sealed to the adhesive part provided on the upper side of the bottom box part. Method.   Glue the width provided on the outer periphery of the upper lid sheet for the upper lid that covers the upper surface of the product with an appropriate sealing pressure. Set the external dimensions as a range that does not cause deterioration of the contents by ventilating from the surface, and adheres to the position where there is no problem with the sealing, leaving a non-adhesive picking allowance. By picking the picking allowance and peeling off the upper sheet, both the outer and inner bonding parts are cut at the cut eyes and opened to form a line, strip or surface. Opening method.   The manufacturing method of the package characterized by providing the opening method of Claim 2 in the seal | sticker part provided in the periphery upper part of the package of Claim 1. The packaging material according to claim 1 and the packaging material used to cover the upper part of the cut according to claim 2 are printed into a winding roll, or a pre-cut sheet is supplied to the packaging machine. The method for producing a package according to claim 1, wherein the method is performed.

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