Peeled piece collection device, sealing machine and sealing method

Abstract

To provide a peeled piece collection device capable of appropriately executing suction and collection of a peeled piece, and a sealing machine and a sealing method.SOLUTION: A peeled piece collection device comprises: a conveyance path 20 for conveying a storage bag 100 having a peeled piece 110 stuck on an adhesive part 108 provided for sealing; a peeling device 3 for peeling the peeled piece 110 from the storage bag 100; and a suction port 57 for sucking and collecting the peeled piece 110 peeled by the peeling device 3 by using a negative pressure generated by a negative pressure source 51. The suction port 57 is positioned near the peeled piece 110, and arranged at the outside side of the conveyance path 20.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a peeled piece recovery device, a sealing machine, and a sealing method. [Background technology]

[0002] For example, Patent Document 1 discloses a device in which a suction member is disposed above an envelope to which tape (hereinafter referred to as a peeled piece) is attached, and the peeled piece is sucked and collected by the suction member. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-195220 Summary of the Invention [Problem to be solved by the invention]

[0004] In Patent Document 1, the suction port of the suction member is disposed directly above the envelope to which the peeling strip is attached, so when an attempt is made to suck in the peeling strip, the envelope is also sucked in. Also, in Patent Document 1, the peeling strip held by the clamp member is sucked in while flapping, but if the peeling strip is made of a thin film, the peeling strip is likely to become charged and stick to surrounding components, making it difficult to guide the peeling strip to the suction port and collect it.

[0005] Therefore, the technical problem to be solved by this invention is to provide a peeled piece recovery device, a sealing machine and a sealing method that can more appropriately perform suction and recovery of peeled pieces. [Means for solving the problem]

[0006] In order to solve the above technical problems, the present invention provides the following peeled piece recovery device.

[0007] That is, the peeled piece recovery device according to the present invention comprises: a conveying path for conveying a storage bag having a release piece attached to an adhesive portion provided for sealing; a peeling device that peels the peel piece from the storage bag; a suction port that uses a negative pressure generated by a negative pressure source to suck and collect the peeled pieces peeled off by the peeling device, The suction port is located near the peeled piece and disposed on the outer side of the transport path.

[0008] According to the above configuration, the suction port is located near the peeled pieces and arranged on the outer side of the conveying path, so that the suction force acts on the peeled pieces but is less likely to affect the storage bag, allowing for more appropriate suction and collection of the peeled pieces.

[0009] The peeled piece recovery device according to the present invention comprises: a conveying path for conveying a storage bag having a release piece attached to an adhesive portion provided for sealing; a peeling device that peels the peel piece from the storage bag; a suction port that uses a negative pressure generated by a negative pressure source to suck and collect the peeled pieces peeled off by the peeling device, The suction port is positioned near the peeled piece and is arranged so as to generate a suction force along the surface of the storage bag being transported on the transport path.

[0010] According to the above configuration, the suction port is positioned near the peeled pieces and is arranged so that a suction force is generated along the surface of the storage bag being transported on the transport path, so that the suction force reaches the peeled pieces but is less likely to reach the storage bag, allowing for more appropriate suction and collection of the peeled pieces. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a diagram showing a schematic diagram of a storage bag used in a peeled piece recovery device, in which (A) shows a storage bag with a peeled piece attached, (B) shows a storage bag with the peeled piece partially peeled off, and (C) shows a sealed storage bag. [Figure 2] 1 is a schematic plan view of a sealing machine equipped with a peeled piece recovery device according to a first embodiment of the present invention. [Figure 3] FIG. 3 is a schematic cross-sectional view taken along line III-III in FIG. 2. [Figure 4] 3 is a diagram illustrating the peeling and collecting operation of the peeled piece by the peeled piece collecting device shown in FIG. 2. FIG. [Figure 5] 3 is a diagram illustrating the peeling and collecting operation of the peeled piece by the peeled piece collecting device shown in FIG. 2. FIG. [Figure 6] 3 is a diagram illustrating the peeling and collecting operation of the peeled piece by the peeled piece collecting device shown in FIG. 2. FIG. [Figure 7] 3 is a diagram illustrating the peeling and collecting operation of the peeled piece by the peeled piece collecting device shown in FIG. 2. FIG. [Figure 8] 3 is a diagram illustrating the peeling and collecting operation of the peeled piece by the peeled piece collecting device shown in FIG. 2. FIG. [Figure 9] 3 is a diagram illustrating the peeling and collecting operation of the peeled piece by the peeled piece collecting device shown in FIG. 2. FIG. [Figure 10] 3 is a diagram illustrating the peeling and collecting operation of the peeled piece by the peeled piece collecting device shown in FIG. 2. FIG. [Figure 11] 3 is a diagram illustrating the peeling and collecting operation of the peeled piece by the peeled piece collecting device shown in FIG. 2. FIG. [Figure 12] 3 is a diagram illustrating the peeling and collecting operation of the peeled piece by the peeled piece collecting device shown in FIG. 2. FIG. [Figure 13] FIG. 6 is a plan view corresponding to FIG. 5. [Figure 14] FIG. 7 is a plan view corresponding to FIG. [Figure 15] FIG. 9 is a plan view corresponding to FIG. 8. [Figure 16] FIG. 10 is a plan view corresponding to FIG. 9. [Figure 17] FIG. 11 is a plan view corresponding to FIG. [Figure 18] FIG. 13 is a plan view corresponding to FIG. [Figure 19] FIG. 10 is a diagram for explaining a peeled piece recovery device according to a second embodiment of the present invention. [Figure 20]FIG. 10 is a diagram for explaining a peeled piece recovery device according to a third embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0012] An example of the present disclosure will be described below with reference to the accompanying drawings. In the following description, terms indicating specific directions or positions (e.g., terms including "upper," "lower," "right," "left," "front," and "rear") are used as necessary. However, the use of these terms is intended to facilitate understanding of the present disclosure with reference to the drawings, and the meanings of these terms do not limit the technical scope of the present disclosure. Furthermore, the following description is merely exemplary in nature and is not intended to limit the present disclosure, its applications, or its uses. Furthermore, the drawings are schematic, and the ratios of the dimensions and the like do not necessarily correspond to reality.

[0013] (Storage bag) First, referring to Fig. 1, the storage bag 100 used in the peeled piece recovery device 4 will be described. In Fig. 1, the storage bag 100 is, for example, an envelope for storing an enclosed item (not shown), and has a body 102, a flap 104, an adhesive portion 108, a peeled piece 110, and an insertion opening 106. The storage bag 100 is made of a film or sheet made of resin or paper.

[0014] A storage space is formed inside the body 102, and various enclosures such as documents, catalogs, and samples are stored in the storage space. The flap 104 is a lid that protrudes from the body 102 and is configured to close the insertion opening 106 by folding back. An adhesive portion 108 is provided in a portion of the body 102 located near the flap 104. The adhesive portion 108 extends linearly along the extension direction L to seal the insertion opening 106. The adhesive portion 108 is configured, for example, by a coated adhesive or an attached double-sided tape. The adhesive portion 108 may also be provided on the flap 104.

[0015] The release piece 110 covers the adhesive portion 108 in both the longitudinal and lateral directions, is slightly larger than the adhesive portion 108, and extends along the extending direction L of the adhesive portion 108. That is, the adhesive portion 108 and the release piece 110 extend along the extending direction L, or in other words, extend along the conveying direction F of the conveying path 20. This allows the release piece 110, described below, to be peeled off by utilizing the conveying movement of the storage bag 100, thereby simplifying the structure related to peeling. The release piece 110 has, for example, one end 112 on the downstream side of the conveying direction F and the other end 114 on the upstream side of the conveying direction F. The release piece 110 is made of a paper sheet or a resin tape or film, and the surface facing the adhesive portion 108 is treated with a non-adhesive material such as silicone. As a result, as shown in FIG. 1 , the release piece 110 is detachably attached to the adhesive portion 108 and can be peeled off with a light force.

[0016] After the contents are inserted into the storage space of the body 102 through the insertion opening 106, the peel-off piece 110 attached to the adhesive portion 108 is peeled off, exposing the adhesive portion 108, as shown in Fig. 1(B). After the entire peel-off piece 110 is peeled off, the flap 104 is folded back, as shown in Fig. 1(C), so that the flap 104 and the body 102 are adhered together via the adhesive portion 108, and the storage bag 100 is sealed.

[0017] (sealing machine) The sealing machine 1 equipped with the peeled piece recovery device 4 will be described with reference to FIGS.

[0018] The sealing machine 1 has the function of sealing an enclosure into a storage bag 100, peeling off a peel piece 110 from the storage bag 100, and folding back a flap 104 to seal the storage bag 100. As shown in Figures 2 and 3, the sealing machine 1 includes a conveying device 2, a peeling device 3, a peel piece collecting device 4, a suction device 5, a storage bag supplying device 6, an enclosure supplying device 7, an inserting device 8, a folding device 9, a receiving device 10, and a control unit 70.

[0019] The conveying device 2 conveys the containing bags 100 along the conveying direction F of the conveying path 20, for example, by sandwiching and conveying them using a pair of conveying rollers arranged opposite each other in the height direction H, or by suction and conveying them using a suction belt. The containing bag supplying device 6 supplies the containing bags 100 placed on a containing bag supply table to the conveying path 20. The enclosure supplying device 7 supplies the enclosures placed on the enclosure supply table to the inserting device 8. The inserting device 8 opens the body 102 vertically by lifting the suction member while maintaining suction on the upper surface of the body 102 located near the insertion opening 106 using the negative pressure of the suction member. Additionally, air is blown through the insertion opening 106 to inflate the storage space of the body 102, and the enclosures supplied by the containing bag supplying device 7 are inserted into the storage space of the body 102 of the containing bag 100 through the insertion opening 106.

[0020] The peeling device 3 peels off the peeling piece 110 from the storage bag 100 with the enclosed item inserted, exposing the adhesive portion 108. The peeling piece recovery device 4 sucks and recovers the peeled off peeling piece 110. The folding device 9 seals the storage bag 100 by folding back the flap 104 so that the body portion 102 and the flap 104 are adhered together via the adhesive portion 108, while the transport of the storage bag 100 by the transport rollers 28 of the transport device 2 is stopped. The receiving device 10 receives the sealed storage bag 100 from the transport path 20 and places it on the receiving device.

[0021] (peeling device) The peeling device 3 will be described with reference to FIGS. 4 to 9. The peeling device 3 has, for example, a peeling blade 30, a shaft 34, and a drive unit 36. The peeling blade 30 is attached to the tip (e.g., the lower end) of the shaft 34. The peeling blade 30 is disposed at an angle so that, in a side view, its tip portion 32 approaches the storage bag 100 and its base portion 33 moves away from the storage bag 100. The drive unit 36 drives the shaft 34 so that it is rotatable and movable in the height direction H. As a result, the peeling blade 30 rotates and moves in the height direction H. The drive unit 36 has a holding surface 37 on the side facing the peeling table 22.

[0022] The tip 32 of the peeling blade 30 is inserted between the adhesive portion 108 and the release piece 110 on the side of one end 112 of the storage bag 100, and then the peeling blade 30 rotates, thereby peeling the one end 112 of the release piece 110 from the adhesive portion 108 of the storage bag 100. The peeling blade 30 moves, for example, upward so as to move away from the storage bag 100, and the peeled one end 112 is clamped between the base 33 of the peeling blade 30 and the holding surface 37 of the drive unit 36. With the one end 112 of the release piece 110 clamped, the storage bag 100 and / or the peeling device 3 move relatively along the extending direction L of the adhesive portion 108 (for example, the conveying direction F), whereby the release piece 110 is peeled off from the storage bag 100.

[0023] (Embodiment 1) 2 and 3, a description will be given of a peeled piece recovery device 4 according to the first embodiment. The peeled piece recovery device 4 includes a negative pressure source 51, a cyclone unit 52, a recovery unit 53, a suction hose 54, a suction head 55, and a suction port 57. The negative pressure source 51 generates negative pressure for suction and is composed of, for example, a suction fan and a suction motor for driving the suction fan. The negative pressure source 51 constantly generates negative pressure while the peeling device 3 is operating. The negative pressure source 51 is connected to the cyclone unit 52 via an exhaust hose. The cyclone unit 52 separates and recovers the peeled pieces 110 sucked through the suction port 57 by centrifugal force (in a so-called cyclone system). This reduces the decrease in suction force S due to clogging compared to when a filter material such as a net, slit, nonwoven fabric, or filter is installed in the recovery unit 53 for separating and recovering the peeled pieces 110. This allows the peeled pieces 110 to be sucked and recovered with a stable suction force S over a long period of time.

[0024] The suction head 55 has a suction port 57. The suction port 57 generates a suction force S using the negative pressure generated by the negative pressure source 51. The suction head 55 and the cyclone unit 52 are connected via a suction hose 54. That is, the suction hose 54 is disposed between the suction head 55 having the suction port 57 and the negative pressure source 51. The suction head 55 is disposed, for example, on the side wall 14 of the housing 12. The side wall 14 is located on the outer side in a cross direction G that crosses the conveying direction F of the conveying path 20. The cross direction G may be perpendicular to the conveying direction F or may cross the conveying direction F at a predetermined angle smaller or larger than 90 degrees. The suction port 57 of the suction head 55 is disposed on the side wall 14. This requires fewer components to be installed compared to when suction port 57 is disposed on the upper inside of conveying path 20 on the side where peeling piece 110 is located so that suction force S along conveying path 20 is generated, and the suction-related components can be simply configured on side wall 14. Furthermore, providing suction port 57 on side wall 14 means that suction port 57 is disposed on the outside lateral side of conveying path 20. The term "outside lateral side of conveying path 20" means the outside in the intersecting direction G of the planar conveying area through which storage bags 100 pass on conveying path 20. The term "lateral side of conveying path 20" means the left or right side when conveying direction F is defined as forward or backward.

[0025] The suction port 57 has a rectangular shape with its longitudinal direction aligned with the extension direction L of the adhesive portion 108. This facilitates suction of the peeled pieces 110 extending along the extension direction L of the adhesive portion 108. From another perspective, the suction port 57 has a rectangular shape with its longitudinal direction aligned with the conveying direction F of the conveying path 20. The opening cross-sectional area of the suction port 57 is configured to be smaller than the internal cross-sectional area of the suction hose 54 so as to obtain an appropriate suction flow rate and suction pressure. This improves the air flow rate at the suction port 57, thereby obtaining sufficient suction force S to suck in the peeled pieces 110, even when an inexpensive suction motor is used and the suction force S of the negative pressure source 51 is weaker than a predetermined value. The suction force S (shown in FIG. 13 and elsewhere) generated by the suction port 57 acts on the peeled pieces 110. Therefore, the peeled pieces 110 peeled from the storage bag 100 are sucked through the suction port 57, pass through the suction hose 54, and are separated in the cyclone unit 52 and collected in the collection unit 53.

[0026] The control unit 70 has a CPU calculation unit and memory units such as RAM and ROM. The control unit 70 is electrically connected to the conveying device 2, the peeling device 3, the peeled piece collecting device 4, the suction device 5, the storage bag supplying device 6, the enclosure supplying device 7, the insertion device 8, and the folding device 9.

[0027] The control unit 70 controls the operations of the conveying device 2, the peeling device 3, the peeled piece collecting device 4, the suction device 5, the storage bag supply device 6, the enclosure supply device 7, the insertion device 8, and the folding device 9. The control unit 70 controls the holding unit 40 to release the holding of the one end 112 of the peeled piece 110 after the other end 114 of the peeled piece 110 is separated from the adhesive portion 108.

[0028] (Peeling and collection of peeled pieces) The peeling operation and recovery operation of the peeled piece 110 using the peeling device 3 and the peeled piece recovery device 4 described above will be described with reference to FIGS.

[0029] 4, suction port 57 is positioned on the side of transport path 20 along which storage bag 100 is transported, on which side storage bag 100 is located (for example, above transport path 20), and is positioned so that suction port 57 is entirely exposed from transport path 20 in side view. As a result, suction force S (shown in FIG. 13, etc.) generated from suction port 57 reaches peeled piece 110 peeled off from adhesive portion 108 of storage bag 100, but is less likely to reach storage bag 100, allowing for more appropriate suction and collection of peeled piece 110.

[0030] In FIG. 4, the storage bag 100 is placed on the conveying path 20 of the peeling table 22, and the peeling blade 30 of the peeling device 3 is at an upper position away from the storage bag 100.

[0031] 5 and 13, the storage bag 100 is in the same position as in FIG. 4, and the peeling blade 30 of the peeling device 3 is in a lower position close to the storage bag 100. At this time, the tip 32 of the peeling blade 30 is located between the upper surface of the storage bag 100 and the lower surface of one end 112 of the peeling piece 110 in the height direction H, i.e., is located at approximately the same level as the adhesive portion 108.

[0032] In Figures 6 and 14, the storage bag 100 is positioned downstream of Figure 4 in the conveying direction F, and the tip 32 of the peeling blade 30 is inserted between the upper surface of the storage bag 100 and the lower surface of one end 112 of the peeling piece 110, so that one end 112 of the peeling piece 110 is raised above the storage bag 100.

[0033] 7, the storage bag 100 is in the same position as in FIG. 6 in the conveying direction F, and the peeling blade 30 of the peeling device 3 moves to an upper position away from the storage bag 100. As a result, one end 112 of the peeled peel piece 110 is clamped between the base 33 of the peeling blade 30 and the holding surface 37 of the drive unit 36. Therefore, the base 33 of the peeling blade 30 and the holding surface 37 of the drive unit 36 function as a holding unit 40 that holds the peeled piece 110.

[0034] 8 and 15, the suction port 57 is located near the peeled piece 110 and disposed on the outer side of the conveying path 20. In other words, the suction port 57 is located near the peeled piece 110 and disposed so as to generate a suction force S along the conveying path 20. For convenience of explanation, the conveying rollers 26 on the upper side of the conveying path 20 are not shown in FIG. 15. Similarly to FIG. 15, the conveying rollers 26 on the upper side of the conveying path 20 are also not shown in FIGS. 16 to 18.

[0035] 8 and 15, with one end 112 of the peel-off piece 110 held by the holder 40, the storage bag 100 is transported downstream in the transport direction F by the suction transport rollers 26. This causes the longitudinal peeled portion of the peel-off piece 110 that is peeled off from the adhesive portion 108 of the storage bag 100 to expand.

[0036] 9 and 16, with one end 112 of the peel-off piece 110 held by the holding portion 40, the containment bag 100 is further conveyed downstream in the conveying direction F by the conveying rollers 26. At this time, the other end 114 of the peel-off piece 110 is only partially adhered to the adhesive portion 108 of the containment bag 100, and the other portion of the peel-off piece 110 has already been peeled off from the adhesive portion 108 of the containment bag 100.

[0037] Then, as the conveying rollers 26 convey the storage bag 100 further downstream in the conveying direction F, all of the peeled piece 110 is peeled off from the adhesive portion 108 of the storage bag 100. The peeled piece 110, which is held by the holding unit 40 and has been completely peeled off, extends approximately within the arrangement area A. The arrangement area A is defined by a first position A1, where the holding unit 40 begins to hold one end 112 of the peeled piece 110, and a second position A2, where the peeling device 3 separates the other end 114 of the peeled piece 110 from the adhesive portion 108. The suction port 57 for sucking the peeled piece 110 is disposed between the first position A1 and the second position A2, i.e., in the arrangement area A. As a result, the suction port 57 can be positioned anywhere within the arrangement area A as long as it is within the range of the arrangement area A, and the peeled piece 110 can be appropriately sucked. This allows for more appropriate suction and collection of the peeled piece 110, and improves the flexibility of the arrangement of the suction port 57. The suction port 57 has a rectangular shape with the conveying direction F of the conveying path 20 as its longitudinal direction, and can therefore easily suck and collect the peeled pieces 110 that have been peeled off along the conveying direction F. The suction port 57 illustrated in Fig. 9 is disposed between a pair of conveying rollers 26 on the upstream side and a pair of conveying rollers 26 on the downstream side in the conveying direction F, which are located between the first position A1 and the second position A2.

[0038] 10 and 17, in the peeling piece 110 in which one end 112 of the peeling piece 110 is held by the holding portion 40 and the other portion of the peeling piece 110 has been completely peeled off from the adhesive portion 108, the portion of the peeling piece 110 closest to the suction port 57 is sucked in first by the suction force S generated from the suction port 57. For example, if the suction port 57 is located in the middle of the arrangement area A, the central portion of the peeling piece 110 in the longitudinal direction is sucked in first.

[0039] 11, the longitudinal downstream portion of the peeled piece 110 that is held by the holding unit 40 and completely peeled off is sucked from the portion close to the suction port 57 to the other end 114. The other end 114 of the peeled piece 110 is located closer to the suction hose 54 than the suction port 57, and can be drawn into the suction hose 54. That is, the longitudinal central portion of the peeled piece 110 is drawn into the suction port 57 first, and then the peeled piece 110 is drawn into the suction head 55 with the central portion of the peeled piece 110 folded in two, and then further drawn into the suction hose 54. The portions of the peeled piece 110 extending from the central portion to the one end 112 and the other end 114 are drawn in side by side along the flow of the suction force S. However, because one end 112 of the detached piece 110 is still held by the holder 40, the other end 114, which is free and not restrained by any means, passes the center of the detached piece 110 and is drawn to the innermost part of the suction hose 54. As a result, the other end 114 of the detached piece 110 is drawn to the most downstream part of the suction hose 54 before the one end 112, causing the detached piece 110 to become stretched. Even if the detached piece 110 is made of a material that easily becomes statically charged and forms clumps, the detached piece 110 is drawn along with the flow within the suction hose 54. Even with a predetermined amount of suction force S, the detached piece 110 can be guided to the suction port 57 and can be appropriately moved from the suction head 55 toward the downstream side of the suction hose 54. Therefore, the suction and collection of the detached piece 110 can be more appropriately performed.

[0040] 12 and 18, after the entire detached piece 110 has been peeled off and the other end 114 of the detached piece 110 has been drawn into the suction hose 54, the peeling blade 30 moves downward toward the opposing peeling table 22, thereby releasing the holding unit 40 from holding the detached piece 110. This initiates the suction and collection of the one end 112 of the detached piece 110 through the suction port 57, making it easier to control the suction and collection of the one end 112 of the detached piece 110. Furthermore, because a portion of the other end 114 of the detached piece 110 has already been sucked through the suction port 57, it becomes easier to suck and collect the entire detached piece 110. After moving through the suction hose 54, the sucked detached piece 110 is separated from the airflow by the cyclone unit 52 and collected in the collection unit 53.

[0041] Therefore, since suction port 57 is located near peeled pieces 110 and is disposed on the outer side of conveying path 20, peeled pieces 110 peeled off by peeling device 3 are easily guided from the side to suction port 57 and are easily sucked into suction port 57. Storage bags 100 conveyed along conveying path 20 are less affected by suction force S from the side, and although suction force S reaches peeled pieces 110, it does not reach storage bags 100, so suction and collection of peeled pieces 110 can be more appropriately performed.

[0042] Furthermore, the suction port 57 is positioned near the peeled piece 110 and is arranged so as to generate a suction force S along the surface of the storage bag 100 being transported on the transport path 20, so that the suction force S reaches the peeled piece 110 but is unlikely to reach the storage bag 100, thereby enabling more appropriate suction and collection of the peeled piece 110.

[0043] (Embodiment 2) A peeled piece recovery device 4 according to the second embodiment will be described with reference to FIG.

[0044] 19, the opening center 59 of the suction port 57 is characterized in that it is positioned biased toward the side where the storage bag 100 is located, across the transport path 20 along which the storage bag 100 is transported. The following mainly describes the differences from the peeled piece recovery device 4 according to the first embodiment described above.

[0045] In FIG. 19 , the opening center 59 of the suction port 57 is biased toward the side of the transport path 20 where the storage bag 100 with the peelable piece 110 attached is located. The suction port 57 opens at both the top and bottom of the transport path 20, and the opening center 59 of the suction port 57 is located above the transport path 20. This positioning of the suction port 57 closer to the peelable piece 110 makes it easier for the suction force S to act on the peelable piece 110, thereby enabling more appropriate suction and collection of the peelable piece 110. Compared to when the entire suction port 57 opens above the transport path 20, the suction port 57 is positioned closer to the peelable piece 110, making it easier for the suction force S to act on the peelable piece 110. Meanwhile, the suction force S is generated on the storage bag 100 along the surface of the storage bag 100. In other words, the suction direction of the suction force S is approximately parallel to the top and bottom surfaces of the storage bag 100, making it difficult for the storage bag 100 to be sucked toward the suction port 57.

[0046] (Embodiment 3) A peeled piece recovery device 4 according to the third embodiment will be described with reference to FIG.

[0047] 20, the suction port 57 is characterized by being positioned biased toward the side where the second position A2 is located. The following mainly describes the differences from the peeled piece recovery device 4 according to the first embodiment described above.

[0048] 20, the suction port 57 is positioned biased toward the side where the second position A2, where the other end 114 of the peeled piece 110 separates from the adhesive portion 108, is located. The suction port 57 is located between the first position A1 and the second position A2, and is closer to the second position A2 than to the first position A1. Because the other end 114 of the peeled piece 110 is sucked into the suction port 57 first, the suction and collection of the peeled piece 110 can be more appropriately performed. Because the suction port 57 is positioned near the second position A2, where the other end 114 of the peeled piece 110 separates from the adhesive portion 108, it is easier to suck the other end 114 of the peeled piece 110 first.

[0049] Although specific embodiments of the present invention have been described, the present invention is not limited to the above-described embodiments and can be implemented with various modifications within the scope of the present invention. For example, an appropriate combination of the contents described in the above-described embodiments may be an embodiment of the present invention.

[0050] In the above embodiment, the peeling device 3 has the function of the holding part 40 of holding the peel piece 110 attached to the adhesive part 108 of the storage bag 100, but the peeling device 3 and the holding part 40 may be configured separately. Also, the peeling device 3 does not have to have a holding part.

[0051] In the above embodiment, the peeling device 3 has been exemplified as peeling one end 112 of the peeling piece 110 from the adhesive portion 108 of the storage bag 100 by the rotation of the peeling blade 30. The peeling device 3 may alternatively be configured to use, for example, a peeling roller having an adhesive surface or to spray air onto the peeling piece 110.

[0052] In the above embodiment, an example has been given of a configuration in which peeling piece 110 is peeled off from containing bag 100 by utilizing the fact that containing bag 100 is conveyed along conveying direction F on conveying path 20. However, a configuration in which peeling device 3 moves toward other end 114 of peeling piece 110 while containing bag 100 is stationary may also be used. In other words, it is sufficient that containing bag 100 and / or peeling device 3 move relatively along conveying direction F on conveying path 20.

[0053] In the above embodiment, the conveying direction F of the storage bag 100 and the extending direction L of the adhesive portion 108 are generally aligned. However, the conveying direction F of the storage bag 100 and the extending direction L of the adhesive portion 108 may be different, for example, the adhesive portion 108 may extend in a cross direction G that intersects with the conveying direction F. When the adhesive portion 108 extends in the cross direction G, the conveying device 2 may convey the storage bag 100 with the flap 104 at the leading or trailing end. When the adhesive portion 108 and the peeling piece 110 extend in the width direction of the storage bag 100, which is the cross direction G, the peeling device 3 may peel the peeling piece 110 by hooking the peeling piece 110 onto a plurality of hooks spaced apart at predetermined intervals in the cross direction G. In this case, the holding unit is not necessary. In addition, one end 112 can be peeled off using the peeling blade 30, and then one end 112 of the peeled piece 110 can be held by the holding portion 40, and the holding portion 40 can be moved along the cross direction G to peel off the peeled piece 110.

[0054] In the above embodiment, an example has been given of a mode in which suction force S generated from suction port 57 flows along the surface of storage bag 100 being transported on transport path 20, thereby causing suction force S to act preferentially on peeling piece 110. In order for suction force S to act preferentially on peeling piece 110 rather than on storage bag 100, suction port 57 can also be configured in a mode in which the suction angle and suction position with respect to peeling piece 110 attached to adhesive portion 108 of storage bag 100 are appropriately and variously arranged.

[0055] In the above embodiment, the suction head 55 having the suction port 57 is disposed on the side wall 14 of the housing 12, i.e., on the outer lateral side of the conveying path 20. The suction port 57 can also be disposed in the vicinity of the peeled piece 110 and above the inner side of the conveying path 20 on the side where the peeled piece 110 is located so as to generate a suction force S along the conveying path 20. In other words, the suction port 57 can also be disposed above the conveying area in the arrangement area A of the conveying path 20 and in the vicinity of the peeled piece 110.

[0056] Furthermore, the direction in which suction port 57 points is not particularly limited as long as it is a direction that generates suction force S along conveying path 20. That is, the direction in which suction port 57 points may be, for example, various directions that are parallel to the plane in which the conveying region in arrangement area A of conveying path 20 extends, or various directions that are oblique to the plane in which the conveying region in arrangement area A of conveying path 20 extends, in which suction force S acts preferentially on peel-off piece 110 rather than on storage bag 100.

[0057] In the above embodiment, the suction port 57 is disposed in the arrangement area A defined between the first position A1 and the second position A2 in the conveying direction F. As long as the suction port 57 can suck the peeled piece 110, the suction port 57 may be disposed upstream in the conveying direction F of the first position A1 where the one end 112 of the peeled piece 110 is held by the holder 40, or the suction port 57 may be disposed downstream in the conveying direction F of the second position A2.

[0058] In the above embodiment, an example has been given in which the opening cross-sectional area of suction port 57 is configured to be smaller than the internal cross-sectional area of suction hose 54. However, an embodiment in which the opening cross-sectional area of suction port 57 is equal to or larger than the internal cross-sectional area of suction hose 54 is also possible.

[0059] In the above embodiment, the suction port 57 is exemplified as being rectangular in shape with its longitudinal direction aligned in the extension direction L. The shape of the suction port 57 may also be circular, oval in shape with its longitudinal direction aligned in the extension direction L, or polygonal in shape such as a triangle or a pentagon.

[0060] In the above embodiment, the flaked pieces 110 are separated and collected by a cyclone system. However, a filter medium such as a net, slits, nonwoven fabric, or filter may be installed in the collection unit 53 to separate and collect the flaked pieces 110. In this case, a mechanism may be provided to periodically scrape the flaked pieces 110 off the filter medium to prevent clogging with the flaked pieces 110.

[0061] In the above embodiment, an example has been given in which one end 112 of the peeled piece 110 is held by the holding portion 40. The holding range of the peeled piece 110 by the holding portion 40 can also be set to a range from one end 112 of the peeled piece 110 to the center of the peeled piece 110 in the longitudinal direction.

[0062] In the above embodiment, the holding unit 40 releases the hold of the one end 112 of the peel-off piece 110 after the peel-off piece 110 has been completely peeled off. The holding unit 40 may also release the hold simultaneously with the peel-off piece 110 being completely peeled off or after a predetermined time has elapsed since the peel-off piece 110 was completely peeled off. The timing of the release of the hold by the holding unit 40 may also be determined by time management using a timer, or based on the position of the storage bag 100 being detected by a sensor.

[0063] In the above embodiment, the enclosure supply device 7 and the insertion device 8 cooperate to insert the enclosures into the storage space in the body portion 102 of the storage bag 100. However, an operator may form a storage space in the body portion 102 of the storage bag 100 and insert the enclosures into the storage space in the body portion 102.

[0064] In the above embodiment, the folding back of the flap 104 by the folding device 9 is performed in a state where the conveyance of the storage bag 100 by the conveyance device 2 is temporarily stopped. However, the folding back of the flap 104 may be performed while the storage bag 100 is being conveyed. When the peel-off piece 110 is peeled off, the storage bag 100 may be sucked from below the conveyance path 20.

[0065] The present invention and the embodiments can be summarized as follows.

[0066] The peeled piece recovery device 4 according to one embodiment of the present invention includes: a conveying path (20) for conveying a storage bag (100) having a peeling piece (110) attached to an adhesive portion (108) provided for sealing; a peeling device (3) that peels off the peel piece (110) from the storage bag (100); a suction port (57) that uses a negative pressure generated by a negative pressure source (51) to suck and collect the peeled pieces (110) peeled by the peeling device (3); The suction port 57 is characterized in that it is located near the peeled piece 110 and disposed on the outer side of the transport path 20 .

[0067] According to the above configuration, the suction port 57 is positioned near the peeled piece 110 and arranged on the outer side of the conveying path 20, so that the suction force S reaches the peeled piece 110 but is less likely to reach the storage bag 100, thereby enabling more appropriate suction and collection of the peeled piece 110.

[0068] In addition, the peeled piece recovery device 4 of another embodiment is a conveying path (20) for conveying a storage bag (100) having a peeling piece (110) attached to an adhesive portion (108) provided for sealing; a peeling device (3) that peels off the peel piece (110) from the storage bag (100); a suction port (57) that uses a negative pressure generated by a negative pressure source (51) to suck and collect the peeled pieces (110) peeled by the peeling device (3); The suction port 57 is located near the peeled piece 110 and is disposed so as to generate a suction force S along the surface of the storage bag 100 being transported on the transport path 20 .

[0069] According to the above configuration, the suction port 57 is positioned near the peeled piece 110 and is arranged so that a suction force S is generated along the conveying path 20, so that the suction force S reaches the peeled piece 110 but is unlikely to reach the storage bag 100, thereby enabling more appropriate suction and collection of the peeled piece 110.

[0070] In addition, in the peeled piece recovery device 4 of one embodiment, The release piece 110 has one end 112 and another end 114. The peeling device 3 further includes a holding unit 40 that holds the one end 112 of the peel piece 110 attached to the adhesive portion 108, The suction port 57 is disposed between a first position A1 where the holding portion 40 starts to hold the one end portion 112, and a second position A2 where the peeling device 3 separates the other end portion 114 from the adhesive portion 108.

[0071] According to the above configuration, the suction and collection of the peeled pieces 110 can be performed more appropriately, and the degree of freedom in arranging the suction ports 57 is improved.

[0072] In addition, in the peeled piece recovery device 4 of one embodiment, After the other end 114 of the release piece 110 is separated from the adhesive portion 108 , the holding portion 40 releases the holding of the one end 112 of the release piece 110 .

[0073] According to the above configuration, the suction and recovery operation of the entire peeled piece 110 is started through the suction port 57, which makes it easier to control the suction and recovery operation.

[0074] In addition, in the peeled piece recovery device 4 of one embodiment, The suction port 57 is positioned biased toward the side where the second position A2 is located.

[0075] According to the above configuration, the suction port 57 is located near the other end 114 of the detached piece 110, so that the suction force S is more likely to act on the other end 114 of the detached piece 110, thereby enabling more appropriate suction and collection of the detached piece 110.

[0076] In addition, in the peeled piece recovery device 4 of one embodiment, A suction hose 54 is disposed between the suction port 57 and the negative pressure source 51. The suction port 57 is positioned so as to allow the other end 114 of the peeled piece 110, which is held by the holding portion 40 and sucked by the suction port 57, to enter the suction hose 54.

[0077] According to the above configuration, the suction and collection of the peeled pieces 110 can be performed more appropriately.

[0078] In addition, in the peeled piece recovery device 4 of one embodiment, The opening center 59 of the suction port 57 is positioned offset toward the side where the storage bag 100 is located across the conveying path 20 .

[0079] According to the above configuration, the suction port 57 is located close to the peeled piece 110, so that the suction force S is more likely to act on the other end 114 of the peeled piece 110, and therefore the suction and collection of the peeled piece 110 can be more appropriately performed.

[0080] In addition, in the peeled piece recovery device 4 of one embodiment, The suction port 57 is located on the side of the transport path 20 where the containing bag 100 is located, so that the entire suction port 57 is exposed from the transport path 20 in a side view.

[0081] According to the above configuration, the suction force S generated from the suction port 57 reaches the peeled piece 110 peeled off from the adhesive portion 108 of the storage bag 100, but is less likely to reach the storage bag 100, so that the suction and collection of the peeled piece 110 can be performed more appropriately.

[0082] In addition, in the peeled piece recovery device 4 of one embodiment, A side wall 14 is disposed on the outer side of the conveying path 20, The suction port 57 is located in the side wall 14 .

[0083] According to the above configuration, the components related to suction can be simply configured on the side wall 14.

[0084] In addition, in the peeled piece recovery device 4 of one embodiment, The suction port 57 is open so that the direction along the extending direction L of the adhesive portion 108 is the longitudinal direction.

[0085] According to the above configuration, the peeling piece 110 extending along the extending direction L of the adhesive portion 108 can be easily sucked.

[0086] In addition, in the peeled piece recovery device 4 of one embodiment, The peeled pieces 110 are collected in a cyclone system.

[0087] According to the above configuration, the peeled pieces 110 can be sucked and collected with a stable suction force for a long period of time.

[0088] In addition, in the peeled piece recovery device 4 of one embodiment, The adhesive portion 108 and the peelable piece 110 extend along the conveying direction F of the conveying path 20, The containing bag 100 is conveyed along the conveying direction F.

[0089] According to the above configuration, the peel-off piece 110 can be peeled off from the containing bag 100 by utilizing the transportation of the containing bag 100, so the structure relating to the peeling is simplified.

[0090] In another aspect of the sealing machine 1, The device is characterized by including the peeled piece recovery device 4 described above.

[0091] According to the above configuration, the suction force S acts on the peeled pieces 110 but is unlikely to act on the containing bag 100, so that the suction and collection of the peeled pieces 110 can be performed more appropriately.

[0092] In another aspect of the peeled piece recovery method, A step of peeling off the peel piece 110 attached to the adhesive portion 108 provided for sealing the storage bag 100; and a step of sucking and recovering the peeled off pieces 110 through a suction port 57 located near the peeled off pieces 110 and disposed on the outer side of the conveying path 20.

[0093] According to the above method, the suction force S acts on the peeled pieces 110 but is unlikely to act on the containing bag 100, so that the suction and collection of the peeled pieces 110 can be performed more appropriately. [Explanation of symbols]

[0094] 1: Sealing machine 2:Transportation device 3: Peeling device 4: Peeling piece collection device 5:Suction device 6: Storage bag supply device 7: Enclosure supply device 8: Insertion device 9: Turning device 10: Receiving device 12: Cabinet 14: Side wall 16: Support frame 18: Bracket 20: Transport path 22: Peeling table 24: Support stand 26: Transport roller 28: Transport roller 30: Peeling blade 32:Tip 33: Base 34: Shaft 36: Drive unit 37: Holding surface 40: Holding part 51: Negative pressure source 52: Cyclone Club 53: Recovery Department 54: Suction hose 55: Suction head 57: Suction port 59: Center of opening 70: Control unit 100: Storage bag 102: Torso 104: Flap 106: Insertion slot 108:Adhesive part 110: Peeling piece 112:One end 114: Other end A: Placement area A1: 1st position A2: 2nd position F: Transport direction G: Cross direction H: Height L: Extending direction S: Suction power

Claims

1. a conveying path for conveying a storage bag having a release piece attached to an adhesive portion provided for sealing; a peeling device that peels the peel piece from the storage bag; a suction port that uses a negative pressure generated by a negative pressure source to suck and collect the peeled pieces peeled off by the peeling device, The suction port is located near the peeled pieces and is disposed on the outer side of the transport path.

2. a conveying path for conveying a storage bag having a release piece attached to an adhesive portion provided for sealing; a peeling device that peels the peel piece from the storage bag; a suction port that uses a negative pressure generated by a negative pressure source to suck and collect the peeled pieces peeled off by the peeling device, The suction port is positioned near the peeled pieces and is arranged so as to generate a suction force along the surface of the storage bag transported along the transport path.

3. The release piece has one end and another end, the peeling device further includes a holding part that holds the one end of the peel piece attached to the adhesive part, The peeling piece recovery device described in claim 1 or claim 2, wherein the suction port is arranged between a first position where the holding portion begins to hold the one end and a second position where the peeling device separates the other end from the adhesive portion.

4. The peeled piece recovery device according to claim 3 , wherein the holding portion releases the holding of the one end of the peeled piece after the other end of the peeled piece is separated from the adhesive portion.

5. The peeled piece recovery device according to claim 3 , wherein the suction port is positioned offset toward the side where the second position is located.

6. a suction hose is disposed between the suction port and the negative pressure source; The peeling piece recovery device described in claim 3, wherein the suction port is positioned so that the other end of the peeling piece held by the holding portion and sucked by the suction port can enter the suction hose.

7. 2. The peeled piece recovery device according to claim 1, wherein the center of the opening of the suction port is positioned offset toward the side of the transport path where the storage bag is located.

8. The peeling piece recovery device according to claim 1 or claim 2, wherein the suction port is positioned on the side of the transport path where the storage bag is located, so that the entire suction port is exposed from the transport path in a side view.

9. A side wall is disposed on the outer side of the conveying path, The peeled piece recovery device according to claim 1 or 2, wherein the suction port is located in the side wall.

10. The peeling piece recovery device according to claim 1 or 2, wherein the suction port is open so that the longitudinal direction of the suction port is along the extending direction of the adhesive portion.

11. 3. The peeled piece recovery device according to claim 1, wherein the peeled pieces are recovered by a cyclone system.

12. the adhesive portion and the peelable piece extend along a conveying direction of the conveying path, The peeling piece recovery device according to claim 1 or 2, wherein the storage bag is transported along the transport direction.

13. A sealing machine comprising the peeled piece recovery device according to claim 1 or 2.

14. A step of peeling off a peel piece attached to an adhesive portion provided for sealing the storage bag; and recovering the peeled off piece by suction through a suction port located near the peeled off piece and disposed on the outer side of the conveying path.

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