JP2014114036A - Deep drawing type package and deep drawing packing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a deep drawing package capable of tearing off by easily separating a container body and a lid member in a knob part.SOLUTION: The deep drawing package comprises a lower side film 2 having a pocket part 2a for storing a packing object and an upper side film 5 for blocking up an opening part, and both films are sealed by heat-sealing over the whole periphery on the outside of the pocket part 2a. Both-film-unadhering knob part 32 is provided on one end of the outer peripheral edge of the package. A recess 2c of becoming a bending part is provided on the lower side film 2 in the knob part 32, and the tip side becomes an attitude of lifting to the opposite side of the projecting direction of the pocket part 2a, and the tip of the upper side film 5 in the knob part 32 is also lifted in response to it, and a part of the recess 2c of becoming the bending part of the lower side film 2 and the upper side film 5 are separably constituted.

Description

  The present invention relates to a deep-drawing type packaging body and a deep-drawing packaging machine, and more specifically to an improvement of a knob portion for facilitating opening of the deep-drawing type packaging body.

  There are deep-drawn packagings that have been vacuum-treated for long-term storage of foods and prevention of product oxidation. The deep-drawn type packaging body includes a container body having a pocket portion for storing an object to be packaged, and a lid member for closing the opening of the container body in a state where the object to be packaged is accommodated in the pocket portion. take. The container body has a flange portion projecting outward around the pocket portion, and the lid member is heat-sealed over the entire circumference of the flange portion to form an endless seal portion. It is designed to seal. Each of the container body and the lid member is made of a film made of a predetermined material.

  For example, the film constituting the container body is thicker than the film constituting the lid member, and is made of a relatively hard material, and the shape of the pocket part is maintained to some extent, or it is soft without rigidity. There is also a so-called soft blister pack formed from a film material.

  When the lid member is heat-sealed on the entire surface of the flange portion of the container body and the outer peripheral edges of the flange portion and the lid member are made coincident, it is very difficult to peel the lid member from the flange portion. Therefore, in order to facilitate the opening of the deep-drawn type packaging body having such a configuration, for example, a part of the outer peripheral edge of the lid member is not bonded to the flange portion like the packaging body shown in Patent Document 1, There is what formed the knob part. In the deep-drawn type packaging body having this structure, the lid member can be easily detached from the flange portion and opened by pulling the lid member away from the flange portion with the gripping portion held between fingers. Can do.

  In the invention disclosed in Patent Document 1, the shape of the knob portion is further characterized. Form at least one convex part that protrudes on the same side as the pocket part protrudes on the container body of the non-adhered part, and configure the convex part so that the container body is caught on the fingers when rubbed with fingers etc. ing. As a result, by rubbing the lid of the knob part and the container body with fingers etc., the convex part is prevented from slipping and caught on the fingers etc., and the lid part of the knob part that is the opening start end and the container body can be easily It can be separated, and the effect of opening the deep-drawn package can be easily formed.

Japanese Patent No. 4220027

  In the invention disclosed in Patent Document 1, a finger or the like is caught on the convex portion, but there is a problem that there are many cases where the protruding amount of the convex portion is actually small and difficult to open. Furthermore, the flange portion and the lid member of the container body at the knob portion are not heat-sealed, but are in contact with each other on the entire surface other than the convex portion and have a structure in which the outer peripheral edge is in contact with each other. There is also a problem that there is.

  In order to solve the above-described problems, a deep-drawing packaging machine according to the present invention includes (1) a molding device that molds a concave pocket portion with respect to a lower film that is intermittently conveyed, and a downstream side of the molding device. Means for covering the upper film with respect to the lower film in a state where an article to be packaged is inserted in the pocket portion, and sealing the predetermined portions of the upper film and the lower film to seal the pocket portion A deep-drawing packaging machine comprising: a sealing device for sealing the upper film; and a cutting means for manufacturing individual packaging bodies by cutting predetermined portions of the upper film and the lower film, A lower mold having a recess for molding a pocket portion, and a plurality of convex portions are provided in order in a direction away from the recess on the upper surface of the lower mold adjacent to the recess; Between convex parts A groove formed therein, and the lower film is molded along the convex portion and the concave groove so that the individual package is bent at a portion formed along the concave groove, and the seal is formed. The apparatus was configured not to seal the film part molded along the convex part and the concave groove of the molding apparatus.

  According to the present invention, the portion formed along the convex and concave grooves of the molding device in the lower film where the pocket portion is formed is not sealed by the subsequent sealing device. Becomes unbonded. And since the film part formed along the ditch | groove of the said shaping | molding apparatus bends with a package, the upper film and lower film in an unadhered part are surfaced by also raising the front-end | tip of an upper film and also providing a bending part. Contact can be prevented. Therefore, both films can be easily separated and peeled off at the unbonded knob.

  (2) The upper surface of the convex part is preferably formed with irregularities. (3) The irregularities may be formed by a plurality of minute irregularities or a plurality of ridges extending in parallel with the concave grooves. Moreover, embossing and other various aspects can be taken. When the unevenness is formed, the finger is easily caught during opening, and the film is easily held and opened.

  (4) The outer peripheral edge of the convex part may be a layout positioned on the inner side of the outer peripheral edge forming position of the package. If it does in this way, the outer periphery of a convex part will become one step lower, and a clearance gap will be formed between the outer periphery of an upper film. Therefore, it becomes easy to insert a fingertip, a nail or the like between the upper film and the lower film.

  (5) A deep-drawn type packaging body according to the present invention includes a container body having a pocket portion for storing an object to be packaged, and a lid for closing an opening of the container body in a state where the object to be packaged is accommodated in the pocket portion. The container body and the lid member are deep-drawn type packaging bodies in which the inside of the pocket portion is sealed by being heat-sealed over the entire circumference at a portion protruding to the outside of the pocket portion. The container main body and the lid member are provided with a non-adhered knob portion at least at one end of the outer peripheral edge of the deep-drawn package, and the container main body portion in the knob portion is heat-sealed. The bent portion has a bent portion at least at one point from the root side adjacent to the formed portion to the tip side, and the bent portion raises the tip side to the side opposite to the protruding direction of the pocket portion. Tip of Kifuta member, together lifted by the front end side of the container body, the lid member and the folded portion is configured to separated.

  According to the present invention, the front end of the lid member can be lifted by forming a bent portion on the container body side and lifting the front end of the container body at the picked portion of the deep-drawn package. Furthermore, by providing a bending part, a clearance gap can be ensured between a cover member and a bending part, and it can prevent that a container main body, a cover member, and a container main body surface-contact. Therefore, in the knob portion, the container body and the lid member can be easily separated and peeled off.

  (6) A plurality of convex portions are formed in order from the root side adjacent to the heat-sealed portion to the tip side at the portion of the container main body in the knob portion, and the convex portion is a protrusion of the pocket portion. It is good to form so that it may protrude on the opposite side to the direction to perform, and the said bending part may be comprised by the ditch | groove formed between the some convex part. In this case, for example, (7) the bottom of the concave groove may not protrude toward the pocket portion.

  (8) On the premise of the configurations of (6) and (7) above, the outer peripheral edge of the container body is positioned outside the convex part, and an area one step lower than the upper surface of the convex part is provided on the outer peripheral edge It is good to do so.

  According to the present invention, in the knob portion of the deep-drawn package, a bent portion is formed on the container main body side and the tip of the container main body is lifted, so that the tip of the lid member is also lifted and further provided with a bent portion. And the container body can be prevented from coming into surface contact. Therefore, in the knob portion, the container body and the lid member can be easily separated and peeled off.

It is a figure which shows one Embodiment of the deep drawing packaging machine which concerns on this invention. It is a top view which shows the lower box which comprises a shaping | molding apparatus. (A) is AA arrow sectional drawing in FIG. 2, (b) is sectional drawing which shows the upper mold | type and lower mold in the BB arrow in FIG. (A) is the elements on larger scale which show a knob shaping | molding part, (b) is a figure which shows other embodiment. It is a top view which shows the lower box which comprises a sealing device. It is sectional drawing which shows the upper side box and lower side box in CC arrow in FIG. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows suitable one embodiment of the deep drawing type package which concerns on this invention, (a) is a top view, (b) is DD sectional view taken on the line in (a) figure, (c) is It is a figure which expands and shows a knob part. It is a figure which shows other suitable embodiment of the deep-drawing type packaging body which concerns on this invention, (a) is a top view, (b) is EE arrow sectional drawing in the (a) figure.

  FIG. 1 shows an overall view of a preferred embodiment of a deep-drawing packaging machine according to the present invention. The deep drawing type packaging machine of this embodiment arrange | positions the lower film supply apparatus 1 in an upstream. In this lower film supply apparatus 1, two original rolls 2 'are rotatably set, and a belt-like lower film 2 drawn continuously from one original roll 2' is formed on a plurality of rollers. The film is conveyed and conveyed, and is supplied to the next-stage film conveyance device 3. The other original roll 2 'is a spare for replacement. If the lower belt film 2 is completely drawn out from the original roll 2', the other original roll 2 is formed at the rear end. It can be operated continuously by connecting the tip of the lower film 2 drawn out from ′ with an adhesive tape or the like.

  Although not shown in the drawings, the film transport device 3 grips both side edges of the lower film 2 with nail members arranged at predetermined intervals of an endless chain provided between a pair of sprockets, and directly lowers the lower film. 2 is moved forward. A molding device 6 is disposed in the vicinity of the carry-in side of the lower film 2. The molding device 6 vacuum-sucks the lower film 2 and molds a concave pocket portion protruding downward at a predetermined position of the lower film 2.

  Further, an article supply area is provided in front of the molding apparatus 6 in the traveling direction, and the articles to be packaged are sequentially supplied into the pocket portion within the area. The supply may be automatic supply by a machine or manual supply.

  Further, an upper film supply device 4 is disposed at a substantially upper center portion of the conveyance path of the lower film 2. The upper film supply device 4 is provided with a raw roll 5 'rotatably arranged so that the upper film 5 continuously drawn from the raw roll 5' is covered on the upper side of the lower film 2. Supply.

  Furthermore, a sealing device 10 is disposed in front of the coating point of the upper film 5 in the traveling direction. The sealing device 10 heats and seals a predetermined position of the lower film 2 and the upper film 5, that is, a contact portion between both the films 2 and 5 around the pocket portion from above and below. Thereby, a to-be-packaged object is sealed in a pocket part. The sealing device 10 is provided with a function of sucking and removing air in the pocket portion, and the air in the pocket portion is sucked and removed before the both films 2 and 5 are heat-sealed, so that the packaged object is vacuumed in the pocket portion. It is configured to be sealed in a state. In addition, it is not always necessary to provide a function of removing such air, and only a seal may be used. Alternatively, a function of filling a predetermined gas may be provided instead of the function of suctioning and removing the inside of the pocket. The pocket portion may be replaced with an inert gas such as nitrogen.

  Further, the sealing device 10 is configured to seal almost the entire surfaces of the opposing films of the lower film 2 and the upper film 5 in which no pocket portion is formed. An unsealed portion is formed in a part of the region. The area where the unsealed part is formed is the tip side of one of the four corners of the pocket part, and is the position constituting the knob portion in the final package. A detailed configuration will be described later.

  Further in front of the sealing device 10 in the direction of travel, a horizontal cutter device 7 and a vertical cutter device 8 are disposed, and the predetermined positions of the lower film 2 and the upper film 5 are cut in the horizontal direction and the vertical direction, respectively. Separately manufactured for each deep-drawn package. In these points, it is the structure substantially the same as the conventional vacuum packaging apparatus.

  2 to 4 show a specific configuration of the molding apparatus 6. As shown in the figure, the molding apparatus 6 includes an upper mold 11 and a lower mold 12 that are arranged vertically so as to sandwich the lower film 2. Both molds 11 and 12 move up and down in accordance with the transport timing of the lower film 2. And when the upper mold | type 11 and the lower mold | type 12 approach, both mold | types 11 and 12 hold | grip and hold the lower film 2 from the upper and lower sides.

  The upper die 11 has a flat rectangular shape, and a shallow bottom recess 11a is provided on the lower surface thereof. Thereby, the frame of the convex part 11b is formed in the lower surface of the upper mold | type 11 along the outer periphery. A hot plate 13 is disposed in the recess 11a.

  The lower mold 12 has a planar shape substantially the same shape as the upper mold 11 and includes a recess 12a at a predetermined position on the upper surface 12d. In the present embodiment, a total of four recesses 12a of 2 rows and 2 columns are provided. When the upper mold 11 and the lower mold 12 are separated from each other, they are separated from the lower film 2. As a result, the lower film 2 moves forward smoothly. When the upper mold 11 and the lower mold 12 are moved up and down at a predetermined timing, the lower film 2 is sandwiched and held between the convex portion 11 b of the upper mold 11 and the peripheral edge of the upper surface 12 d of the lower mold 12. Thereby, the lower film 2 is heated by the heat generated from the hot plate 13.

  In addition, through holes 12b that vertically penetrate the lower mold 12 are formed on the bottom surface of the recess 12a. The through holes 12b communicate with a predetermined exhaust passage 12c formed in the lower mold 12, and the exhaust passage 12c. It is possible to communicate with a vacuum pump (not shown) disposed outside via the. An open / close valve (not shown) is provided between the exhaust passage and the vacuum pump so that the vacuum pump and the recess 12a can communicate with each other or be shut off.

  Therefore, when the upper mold 11 and the lower mold 12 move close to each other and sandwich the lower film 2, the upper part of the lower mold 12 is closed by the lower film 2. In this state, when the vacuum pump and the recess 12a are communicated to suck and remove the air present in the recess 12a and the like, the lower film 2 is also subjected to negative pressure and is softened by the heat of the hot plate 13. Combined with the fact that the film portion is easily deformed and extended, the pocket portion is formed by processing into a shape along the inner shape of the recess 12a. Such a configuration is basically the same as that of the conventional molding apparatus 6.

  Here, in the present invention, as shown in FIGS. 2 and 4A, a knob forming portion 15 is provided at a predetermined position on the upper surface 12 d of the lower mold 12. The predetermined position where the knob forming part 15 is provided is a position adjacent to the outside of one of the four corners of the recess 12a. This adjacent position is a position corresponding to one of the four corners in the final deep-drawn package, and has a layout that faces the outer periphery of the deep-drawn package.

  The knob forming portion 15 has a plurality of convex portions disposed at a predetermined interval above the upper surface 12d of the lower mold 12, and a concave groove formed between the plurality of convex portions. A bent portion is formed at the film portion facing the surface. In the present embodiment, the first convex portion 15a and the second convex portion 15b are provided with two convex portions. The first convex portion 15a is disposed on the side of the recess 12a, the planar shape thereof is an isosceles trapezoid, and the second convex portion 15b is disposed on the side away from the recess 12a (the front end side of the deep-drawn packaging). The planar shape is a right-angled isosceles triangle. The hypotenuse of the first convex portion 15a and the hypotenuse of the second convex portion 15b are located in substantially the same straight line, and a large right-angled isosceles triangle is formed as a whole by combining both the convex portions 15a and 15b. Moreover, both convex parts 15a and 15b are located slightly inside the outer peripheral edge of one corner part in the formation region of the deep-drawn type package that is finally produced.

  The two convex portions 15a and 15b are arranged so as to be sequentially separated from the recess 12a side, and are formed at a predetermined interval, and a linear shape is formed between the both convex portions 15a and 15b. A concave groove 15c is formed. Through holes 15d penetrating the lower mold 12 vertically are formed on the bottom surface of the concave groove 15c, and the through holes 15d communicate with a predetermined exhaust passage 12c 'formed in the lower mold 12, and the exhaust passage It is possible to communicate with a vacuum pump (not shown) disposed outside via 12c '.

  As a result, when the lower film 2 is sandwiched between the upper mold 11 and the lower mold 12, the lower film 2 is urged upward so that the film portion contacting the both convex portions 15a and 15b is convex upward. . Further, when suction is performed by a vacuum pump while the lower film 2 is sandwiched between the upper mold 11 and the lower mold 12, a film portion facing the concave groove 15c is sucked, and a concave portion is formed along the inner shape of the concave groove 15c. Is formed. Therefore, the film part located in the knob forming part 15 is formed with two convex parts protruding upward along the shapes of the first convex part 15a and the second convex part 15b, and a concave part between the convex parts. 2c (part facing the concave groove) is formed.

  Furthermore, the upper surface of the 1st convex part 15a and the 2nd convex part 15b is formed with minute and countless unevenness. This upper surface is rough, for example, and has a satin-like surface. Therefore, the surface of the convex part of the lower film 2 formed by both the convex parts 15a and 15b is in a rough state.

  Furthermore, the height position of the concave groove 15 c is equal to the upper surface 12 d of the lower mold 12. In other words, in the present embodiment, by providing the first convex portion 15a and the second convex portion 15b so as to protrude upward on the upper surface of the lower mold 12, the positions of the upper surfaces of both convex portions are relatively high. A concave groove 15c is formed between the convex portions 15a and 15b, and the concave groove 15c is formed at a relatively lower position than the upper surface position of the convex portion.

  Therefore, in the lower film 2 molded by the molding apparatus 6, the film portion facing the recess 12a of the lower mold 12 protrudes downward from the reference surface of the lower film 2, and the convex portions 15a, 15b Opposing film portions protrude above the reference surface of the lower film 2. And the film site | part which opposes the ditch | groove 15c becomes the same position as the reference plane of the lower film 2. FIG.

  5 and 6 show a specific configuration of the sealing device 10. As shown in the figure, the sealing device 10 includes an upper box 21 and a lower box 22 so that both boxes 21 and 22 move up and down in accordance with the transport timing of the upper film 5 and the lower film 2. It has become. As shown in FIG. 6, the upper film 5 is positioned between the boxes 21 and 22 above the lower film 2 molded by the molding device 6. The lower film 2 is formed with a pocket portion 2 a projecting downward formed by the recess 12 a of the lower mold 12 and a projecting portion 2 b projecting upward formed by the knob forming portion 15. Further, as shown in FIG. 6, the film portion 2 c between the two convex portions 2 b is at the same position as the reference surface of the lower film 2.

  The lower box 22 has a box shape with an upper opening, and a receiving rubber 24 is attached to the top surface of the upper box, and a predetermined number (four (2 × 2) is shown in the embodiment) therein. 1st recessed part 22a is provided. The first concave portion 22 a is provided at a position facing the pocket portion 2 a formed in the lower film 2. A partition wall 14 is formed between the recesses 22a.

  Further, a second concave portion 22d having a substantially triangular shape is provided adjacent to the first concave portion 22a. This 2nd recessed part 22d is provided in the position facing the recessed part 2b formed in the lower film 2, and the film part of the circumference | surroundings, ie, the film part used as the picking part in a deep drawing type package.

  A through-hole 22b penetrating vertically is formed on the bottom surface of the first recess 22a and the second recess 22d. Further, a plurality of through holes (not shown) penetrating vertically are formed at predetermined positions (substantially the central portion) of the partition wall 14. The through hole 22b and the through hole communicate with a predetermined passage 22c formed in the lower box 22, and can communicate with a vacuum pump (not shown) disposed outside through the passage. Air present in the recess 22d and the like can be removed by suction. An open / close valve (not shown) is provided between the passage and the vacuum pump so as to communicate with or shut off the vacuum pump.

  On the other hand, the upper box 21 is provided with a heater 27 and a sealer 28 integrated in a layered manner in a recess 25 a of a box-shaped outer frame 25 that opens downward. For example, a heat pipe (not shown) is provided at a predetermined position in the heater 27. The heat of the heat pipe is transmitted to the heater 27 and then to the sealer 28, and the whole is heated.

  A first recess 28 a and a second recess 28 b are formed at predetermined positions on the lower surface of the sealer 28. The formation position of the first recess 28a is a position facing the first recess 22a formed in the lower box 22, and the formation position of the second recess 28b is a position facing the second recess 22d formed in the lower box 22. It was. The lower surface of the sealer 28 in which these concave portions 28a and 28b are not formed becomes a seal surface.

  That is, when the upper film 21 and the lower film 2 are sandwiched between the upper box 21 and the lower box 22, the area of the lower surface where the recesses 28 a and 28 b of the sealer 28 are not formed corresponds to the seal surface of the sealer 28. The upper and lower films 5 and 2 are sandwiched with the receiving rubber 24 at a predetermined pressure, and both the films are heated from the sealing surface in contact with the film to heat-seal the contact portion.

  Further, a holding plate 29 is disposed in the first recess 28a. The restraining plate 29 comes into contact with and restrains the film portion of the upper film 5 that closes the upper portion of the pocket portion 2a. The heater 27 and the sealer 28 are thermally shielded and do not heat the film portion that comes into contact.

  Film portions that face the recesses 22a, 22d, 28a, and 28b and are not in contact with the lower surface of the sealer 28 are not directly heated by the sealer 28 and are not pressurized, and thus are not heat sealed. Therefore, for example, the film part which becomes the picking part in the deep-drawn package is not heated and pressurized, and the upper film 5 and the lower film 2 in the film part become unsealed parts.

  Although specific explanation is omitted, the inside of the pocket portion 2a can be obtained by performing suction with the vacuum pump through the concave portions 22a and 22d of the lower box 22 and the through holes of the partition wall 23 at the time of sealing. The air is removed and vacuum treatment is performed. Thereby, the inside of the pocket portion 2a is evacuated and the upper and lower films are sealed around the pocket portion 2a to be sealed.

  FIG. 7 shows a deep-drawn package 30 manufactured using the deep-drawing packaging machine of the present embodiment described above. The film part located around the pocket part 2a is heat-sealed to form a seal part 31, and the deep-drawn package 30 is sealed. Also, one of the four corners of the deep-drawn package 30 is a knob portion 32. As shown in FIG. 7 (a), the knob portion 32 is formed by the knob forming portion 15 of the molding apparatus 6 and is formed with two convex portions 2b and a concave portion 2c formed between the convex portions 2b. Moreover, the outer periphery of the convex part 2b comes to be located inside the peripheral edge of the deep drawing type package 30, and the outer peripheral edge 2d of the lower film 2 is positioned on the outer periphery of the convex part 2b.

  In this knob portion 32, the upper film 5 and the lower film 2 are not sealed, are not bonded, and are free from each other. The unbonded knob portion 32 extends to the outer periphery of the deep-drawn package 30.

  As shown in FIG. 7 (b), in the present invention, a concave portion 2c serving as a bent portion is formed between the two convex portions 2b, and the concave portion 2c is bent. That is, as shown in an enlarged view in FIG. 7C, the upper surface of the two convex portions 2b is deformed so that the distance d2 on the open side of the concave portion 2c is closer than the width d1 of the bottom portion of the concave portion 2c. The angle θ1 formed by the upper surfaces instead of being flush with each other is smaller than 180 degrees. As a result, the lower film 2 in the knob portion 32 is in a state in which the tip and outer peripheral edge are bounced up. By making the angle θ1 formed in this way smaller than 180 degrees, the upper film 5 and the lower film 2 are reliably separated and a space is secured. Therefore, the upper film 5 and the lower film 5 in the knob portion 32 can be easily separated without being in close contact with each other.

  Further, as shown in the drawing, the wall surface of the convex portion 2b adjacent to the pocket portion 2a also rises obliquely with the angle θ2 formed not perpendicular to the reference plane L of the lower film 2 being an acute angle. With respect to the reference plane L of the film, it is inclined so as to rise from the adjacent convex portion 2b to the upper film 5 side, and the entire knob portion 32 is inclined diagonally to the side opposite to the protruding direction of the pocket portion 2a. Can be tilted. Thereby, the upper film 5 can also rise up diagonally from the root (pocket part 2a side) of the knob | pick part 32 which concerns, and the upper film 5 and the lower film 2 in the knob | pick part 32 become easier to peel off.

  Moreover, in this embodiment, since the outer peripheral edge 2d of the lower film 2 is positioned outside the convex portion 2b and a region that is one step lower than the upper surface of the convex portion 2b is provided, as shown in FIG. 7B. In addition, a gap corresponding to the height of the convex portion 2 b can be secured between the outer peripheral edge 2 d and the tip 5 a of the upper film 5. Therefore, for example, when the user puts a fingertip or a nail between the outer peripheral edge 2d and the tip 5a of the upper film 5, the user's finger can easily enter between the upper film 5 and the lower film 2, The film can be pulled apart.

  Furthermore, since the surface of the convex part 2b is rough at the time of the approach, a finger etc. are caught appropriately and the lower film 2 can also be hold | maintained firmly. And if the upper film 5 and the lower film 2 are opened to the base part of the non-adhesive knob | pick part 32, while holding both films 5 and 2 with a separate one hand, respectively, it is urged | biased in the direction which separates further By doing so, the seal part 31 is peeled off and the package is opened.

  FIG. 4B shows a main part of another embodiment of the present invention. That is, in this embodiment, the configuration of the knob forming portion 15 ′ of the molding apparatus 6 is changed. Specifically, a large number of grooves / projections are formed on the shape of the upper surface of both convex portions 15a 'and 15b'. As a result, the film portion of the lower film 2 in contact with the upper surfaces of the both convex portions 15a 'and 15b' is the surface of the convex portion 2b 'of the lower film 2 constituting the knob portion 32 as shown in FIG. A large number of ridges are formed along the shape of the upper surface of both convex portions 15a 'and 15b' of the knob forming portion 15 '. Therefore, as in the case where the surface of the convex portion 2b in the above-described embodiment is rough, a finger is appropriately caught on the convex strip, and the lower film can be easily and reliably held. Other configurations and operational effects may be the same as those of the above-described embodiment.

  The film material of the upper film 5 and the lower film 2 is arbitrary. For example, the lower film provided with a pocket portion for storing an object to be packaged like the soft type disclosed in Patent Document 1 may be made of a soft material. A hard material may be used.

  In the embodiment described above, the lower mold 12 of the molding apparatus 6 is provided with the first convex portion 15a and the second convex portion 15b, and the single concave groove 15c is formed between them. For example, three or more grooves may be provided to form a plurality of grooves. Moreover, in FIG. 8, the shape of a groove | channel and a protruding item | line can be formed in the direction orthogonal to the recessed part 2c (vertical eye), or can also be made into a lattice pattern.

2 Lower film 2a Pocket part 2b, 2b 'Convex part 2c Concave part 5 Upper film 5a
6 Molding device 10 Sealing device 12 Lower mold 15, 15 ′ Knob molding portion 15 a First convex portion 15 b Second convex portion 15 c Groove 30 Deep drawing type packaging body 31 Seal portion 32

Claims (8)

A molding apparatus that molds a concave pocket for the lower film that is intermittently conveyed,
Means for covering the upper film with respect to the lower film, which is arranged downstream of the molding apparatus and in which the article to be packaged is inserted into the pocket portion;
A sealing device for sealing the pocket portion by sealing a predetermined portion of the upper film and the lower film;
A deep-drawing packaging machine provided with a cutting means that cuts predetermined portions of the upper film and the lower film to produce individual packages,
The molding apparatus includes a lower mold having a recess for molding the pocket portion, and a plurality of convex portions are sequentially formed on the upper surface of the lower mold adjacent to the recess in a direction away from the recess side. And providing a concave groove formed between the plurality of convex portions, and molding the lower film along the convex portion and the concave groove along the concave groove in the individual packaging body. Bend at the formed part,
The deep-drawing packaging machine, wherein the sealing device is configured not to seal a film portion molded along the convex portion and the concave groove of the molding device.   The deep-drawing packaging machine according to claim 1, wherein the upper surface of the convex part is formed with irregularities.   The deep-drawing packaging machine according to claim 2, wherein the irregularities are formed by a plurality of minute irregularities or a plurality of ridges extending in parallel with the concave grooves.   The deep-drawing packaging machine according to any one of claims 1 to 3, wherein an outer peripheral edge of the convex portion is a layout located on an inner side than a formation position of the outer peripheral edge of the packaging body. A container body having a pocket portion for storing an object to be packaged;
A lid member that closes the opening of the container body in a state in which an object to be packaged is stored in the pocket portion;
The container body and the lid member are deep-drawn packaging bodies that seal the inside of the pocket portion by being heat-sealed over the entire circumference at a portion protruding to the outside of the pocket portion,
The container body and the lid member are provided with a non-adhered knob portion at least at one end of the outer peripheral edge of the deep-drawn package,
The portion of the container body in the knob has a bent portion at least at one location from the root side to the tip side adjacent to the heat-sealed portion, and the front end side protrudes from the pocket portion by the bent portion. The posture lifted to the opposite side,
A deep-drawn packaging body, wherein a tip of the lid member in the knob portion is lifted by the tip side of the container body, and the bent portion and the lid member are separated from each other. In the portion of the container body in the knob portion, a plurality of convex portions are formed in order from the root side adjacent to the heat-sealed portion along the tip side,
The convex portion is formed so as to protrude on a side opposite to a protruding direction of the pocket portion, and the bent portion is configured by a concave groove formed between the plurality of convex portions. 5. The deep-drawn package according to 5.   The deep-drawn package according to claim 6, wherein the bottom of the concave groove does not protrude toward the pocket part.   The deep-drawn package according to claim 6 or 7, wherein an outer peripheral edge of the container main body is positioned outside the convex part, and a region that is one step lower than the upper surface of the convex part is provided on the outer peripheral edge. .

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