JP2008189365A - Feed mechanism for sheet-like object to be packaged - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a feed mechanism for sheet-like objects to be packaged, which is capable of surely supplying sheet-like objects to be packaged in a prescribed attitude to a position between upper and lower belt-like films on a four side seal packaging machine, which achieve a high-speed operation, and which can be reduced in size. <P>SOLUTION: The feed mechanism includes: an upper and a lower side receiving edge guides 46, 48 that horizontally guide the upper and lower belt-like films 42, 44 in the vicinity of the transporting terminal end of an upstream side conveyor 6; a bridge member 8 that forms a transferring passage for the sheet-like objects (w) to be packaged between the lower side receiving edge guide and the transporting terminal end of the upstream side conveyor; and press-and-feed means 10 that supplies the objects to be packaged onto the lower side belt-like film through the transferring passage while abutting on the rear end of the object conveyed to the transporting terminal end of the upstream side conveyor. The upper side receiving end guide is disposed as shifted to the downstream side of the lower side receiving edge guide, by the center distance (1') which is a little shorter than the length (1) of the object to be packaged in the transporting direction, while the press-and-feed terminal end is set on the upstream side of the upper side receiving end guide by the length (1) of the object to be packaged in the transporting direction, and a press-and-feed velocity is set faster than the pull-out velocity of the lower side belt-like film. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a sheet-like package supply mechanism for supplying a sheet-shaped package conveyed by a belt conveyor at a predetermined interval between upper and lower packaging films of a four-side seal packaging machine.

  There are various types of sheet-like articles in which the surface of the adhesive applied to the base film is covered with a release film, such as a patch for angina and asthma. Generally packaged.

  This four-side seal wrapping machine superimposes a long roll-shaped upper covering material and a lower covering material while continuously pulling them out, and the packaged material is spaced a predetermined distance between the two overlapping covering materials. In this way, the packaged object is transported together with both coating materials, and the outer periphery of the packaged object is sealed by thermocompression bonding using a sealing device in the middle of the transportation. By cutting in the lateral direction in the traveling direction, the individual packaging bodies are separated and formed.

Here, as a packaging device for four-side sealing the above-mentioned sheet-shaped packaged object, one disclosed in Japanese Patent Laid-Open No. 9-99907 is known. In this packaging device, the upper and lower coating materials are sandwiched between a heat roller and a receiving roller of a rotary seal device, and the four rounds of the sheet-shaped package are heat-sealed. A lower conveying belt device is arranged between the opposite side and the rotary sealing device, and the lower coating material drawn from the roll original is guided onto the lower conveying belt and supplied to the rotary sealing device. Then, on the lower covering material guided onto the lower conveying belt, a sheet-like packaged article is placed with a predetermined interval via an adsorption roller, and near the terminal end of the lower conveying belt from above. By providing a guide roller that guides the upper covering material and superimposes it on the lower covering material, the sheet-shaped package is sandwiched between the two covering materials and supplied to the rotary seal device. Further, on the upstream side of the guide roller, an upper conveying belt is disposed to prevent the positional deviation of the sheet-like packaged material placed on the lower covering material, and the upper conveying belt is used for the sheet. The shaped package is pressed onto the lower covering material.
JP-A-9-99907

  However, in the apparatus shown in the above publication, since the suction roller and the upper conveyor belt are disposed above the lower conveyor belt, it is difficult to reduce the size of the apparatus, which increases the size, and occupies a large installation space. There was a problem to say. In addition, when placing a sheet-like package on the lower covering material from the suction roller, it is difficult to prevent the sheet-like package from being misaligned and the posture and position are highly accurate. There is also a problem that it is difficult to achieve high-speed operation while maintaining a high speed.

  The present invention has been made in view of the above-described background, and the object of the present invention is to reliably supply a sheet-like packaged object between a top and bottom belt-like film of a four-side seal packaging machine in a predetermined posture and position. On the other hand, an object of the present invention is to provide a sheet-like package supply mechanism that can achieve high speed operation and can reduce the size of the apparatus.

  In order to achieve the above object, the sheet-like packaged supply mechanism according to the present invention is configured as follows. That is, the upper and lower long sheets that are placed on the upstream belt conveyor and are intermittently conveyed at predetermined intervals toward the conveyance end, run in the longitudinal direction along the conveyance direction. This is a mechanism that is sandwiched between strip-like films and heat-sealed on the four sides to the package receiving end of the four-side seal wrapping machine, where the lower strip-like film fed from below is near the conveyance end of the upstream conveyor A lower receiving end guide that guides horizontally at the upper side, an upper receiving end guide that guides the upper strip film supplied from above in the vicinity of the conveyance end of the upstream conveyor, the lower receiving end guide, and the upstream A transfer member provided between the conveying end of the side belt conveyor and forming a transfer path for the sheet-like packaged object, and the sheet-like packaged object conveyed to the conveying end of the upstream belt conveyor ,That The upper receiving end guide, and a pushing means for feeding the lower side strip-shaped film guided by the lower receiving end guide through the transfer path of the transition member. Is arranged to be shifted to the downstream side by an inter-axis distance slightly shorter than the length in the conveying direction of the sheet-like packaged object than the lower receiving end guide, and the pushing end of the pushing means is The upstream receiving end guide is set upstream by an amount corresponding to the length in the conveyance direction of the sheet-like packaged object, and the pushing speed of the pushing means is set faster than the drawing speed of the two belt-like films. It is characterized by that.

  Here, the pushing means is disposed above the upstream belt conveyor and moves forward and backward by a box motion back and forth along the conveying direction, and extends downward to a rear end of the sheet-like packaged article. The upstream belt conveyor and the crossover member are formed with a groove portion through which the tip of the pusher is inserted along the belt length direction. The groove portion of the crossover member A pickup plate that extends toward the groove portion of the upstream belt conveyor and forms a transfer path on the upper surface while avoiding buffering with the pusher may be provided.

  Further, the crossover member has a structure in which a plurality of rollers that are in contact with the side edges of the sheet-like package and regulate the displacement in the width direction are rotatably arranged on both sides of the transfer path. obtain.

  Furthermore, it can be set as the structure by which the annular groove which engages with the side edge of a sheet-like to-be-packaged object and controls an upward shift is formed in the outer peripheral surface of the said roller.

  Still further, the pusher may be configured such that a protrusion is provided on the front surface that regulates the upward lifting of the rear end edge of the sheet-shaped article.

  According to the supply mechanism of the sheet-shaped package of the present invention according to the above configuration, the upper receiving end guide that horizontally guides the upper strip film is seated against the lower receiving end guide that horizontally guides the lower strip film. The axial distance slightly shorter than the length of the packaged article in the conveying direction is shifted to the rear in the conveying direction, and the feeding end position of the sheet-like article to be packaged by the pushing means is more in the sheet shape than the upper receiving end guide. Since it is positioned forward by the length in the conveyance direction of the package, when the pushing means reaches the feed end position, the sheet-like package passes over the transition member, and most of it is on the lower belt-like film. It is placed and the front end reaches the position of the upper receiving end guide. Moreover, since the feeding speed of the pushing means is slightly faster than the feeding speed of the belt-like film, the sheet-like package is fed while the posture is maintained by the feeding means, and its front end is the upper receiving end guide. Immediately thereafter, the front end portion is sandwiched between the lower belt-like film and the upper belt-like film. That is, the sheet-like package is supplied while being forcedly aligned with a predetermined position of the belt-like film by the pushing means. Therefore, the sheet-like package does not slide forward due to the inertia after the pushing means is detached, and the sheet-like package with respect to the lower belt-like film and the upper belt-like film can be improved even if the operation speed is increased. It is possible to prevent relative displacement and posture disorder. Further, since no suction roller is used, the apparatus can be miniaturized as much as possible.

  Further, a groove portion through which the tip of the pusher is inserted is formed along the belt length direction in the upstream belt conveyor and the crossover member, and the upstream belt conveyor of the crossover member is avoided in the groove portion while avoiding buffering with the pusher. By providing a pick-up plate that extends into the groove and forms a transfer path on the upper surface, the sheet-like package is smoothly rolled up from the belt conveyor onto the transfer path of the transfer member and pushed by the pusher. be able to.

  Further, by arranging a plurality of rotatable rollers on both sides of the transfer path of the transition member so as to abut against the side edge of the sheet-shaped package to regulate the shift in the width direction, the sheet-shaped package is It is possible to prevent the positional deviation in the width direction from occurring when moving on the transfer path.

  In addition, by forming an annular groove on the outer peripheral surface of the roller that engages with the side edge of the sheet-like package and regulates the upward displacement, the package to be pushed by the pusher moves through the transfer path. When doing so, it is possible to prevent upward displacement.

  In addition, by providing a protrusion on the front surface of the pusher that restricts the upward lifting of the trailing edge of the sheet-like packaged object, the trailing edge of the sheet-like packaged object rises or floats upward during feeding. Can be prevented.

  FIG. 1 is a side view showing an example of an embodiment of a supply mechanism for a sheet-like packaged article according to the present invention. 2 is a cross-sectional view taken along the line II-II in FIG. 1, FIG. 3 is an enlarged view of the main part in FIG. 2, and FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. FIG. 5 is an enlarged view of a main part in FIG. As shown in FIG. 1, the supply mechanism 2 for the sheet-like packaged item w is provided across the workpiece carry-in end portion of the four-side seal packaging machine 4 and the conveyance end portion of the belt conveyor 6 installed on the upstream side. ing. In addition, in the said embodiment, the thing of 2 series type in which the belt conveyor 6 and the four-side seal packaging machine 4 are arranged in parallel by 2 figures is illustrated.

  That is, as shown in FIG. 1, the four-side seal wrapping machine 4 has a sheet shape between a long lower belt-like film 42 supplied from below and a long upper belt-like film 44 supplied from above. After sandwiching the object to be packaged w, the outer peripheral four sides of the sheet-like object to be packaged w are heated by a heat seal part and a cut part (not shown) arranged on the downstream side in the running direction of both films 42 and 44. It is sealed and cut into a predetermined size, and is formed into a package in which the sheet-like articles to be packaged w are individually packaged.

  The lower belt-like film 42 is continuously drawn out from a raw roll that is rotatably supported in the lower part of the figure. The lower belt-like film 42 drawn out from the original fabric roll is wound around a roller 46 serving as a lower receiving end guide provided in the vicinity of the conveyance end of the upstream belt conveyor 6 and is directed downstream in the conveyance direction. And is guided horizontally. On the other hand, the upper belt-like film 44 is continuously drawn from a raw roll that is rotatably supported in the upper direction outside the figure, and is also provided in the vicinity of the conveyance end of the upstream belt conveyor 6. The belt is wound around the upper receiving end guide roller 48, and is guided horizontally and travels toward the downstream side in the transport direction of the upstream belt conveyor 6. The upper and lower belt-like films 44 and 42 are, as described above, the belt-like films drawn from one original roll in addition to the case where they are drawn from the two original rolls originally arranged above and below. May be cut in the middle and divided into two sheets for supply.

  Here, the upper receiving end guide roller 48 has an axial distance l ′ slightly shorter than the length l in the conveying direction of the sheet-shaped package w with respect to the arrangement position of the lower receiving end guide roller 46. The position is shifted and arranged on the downstream side in the transport direction. The upper receiving end guide roller 48 is provided so as to come into contact with the upper surface of the lower belt-like film 42 that extends horizontally, and the upper belt-like film 44 is superposed on the lower belt-like film 42 and supplied. Thus, it travels with the lower belt-like film 42 toward the downstream side in the transport direction.

  Further, on the downstream side of the upper receiving end guide roller 48, a pressing roller 52 is provided for pressing the upper and lower belt-like films 44, 42 against each other. The pressing roller 52 is pivotally supported by a frame 50 that supports the lower receiving end guide roller 46, and includes two lower pressing rollers 52a and 52b and one upper pressing roller 52c. The upper pressing roller 52c is provided at a substantially middle position between the two lower pressing rollers 52a and 52b, and pushes down both the films 42 and 44 slightly downward.

  Further, the upper receiving end guide roller 48 is attached to a movable frame 54 that can move back and forth in the transport direction, and an inter-axis distance with the lower receiving end guide roller 46 can be adjusted. That is, the inter-axis distance l 'between the lower receiving end guide roller 46 and the upper receiving end guide roller 48 can be adjusted according to the length l in the conveying direction of the sheet-like packaged object w.

  The upstream belt conveyor 6 is of a toothed suction type, and an endless conveyance belt 62 whose outer peripheral surface forms a conveyance path is formed with a suction path over its entire circumference, although not shown. . In addition, innumerable suction holes (not shown) communicating with the suction passages are provided on the outer surface of the conveyor belt 62 at appropriate intervals. Then, the sheet-shaped package w is placed on the outer surface of the transport belt 62 at a predetermined interval, is adsorbed and fixed to the suction hole, and is directed from the transport start end of the upstream belt conveyor 6 toward the transport end. Intermittently.

  Moreover, as shown in FIGS. 1-3, on the outer peripheral surface of the conveyance belt 62, the two groove parts 64 are recessed in parallel along the longitudinal direction over the perimeter, and a sheet-like packaging The object w is placed on the transport belt 62 across the two groove portions 64. The conveyor belt 64 has a structure in which a soft resin layer 64b such as urethane is laminated on the outer peripheral side of the core member 64a, and teeth 64c that are also formed of a soft resin such as urethane are provided on the inner peripheral side at predetermined intervals. (See FIG. 3).

  And between the end roller 66 by which the said conveyance belt 62 is wound and forms the conveyance termination | terminus part of the upstream belt conveyor 6, and the lower receiving end roller 46 of the four-way sealing machine 4 mentioned above, it is sheet-like. A crossover member 8 is provided so as to form a transfer path for transferring the object to be packaged w from the transport belt 62 onto the lower belt-like film 42.

  6 is a top view of the crossover member 8, and FIG. 7 is a side view thereof. As shown in FIGS. 1 and 4 to 7, the transition member 8 includes a support bar 82 disposed at a lower front portion of the end roller 46 and attached to a fixed system such as a machine base, and the support bar 82. And a transition member main body 84 having a lower end portion fixed thereto. This cross member main body 84 is formed in an arc shape that follows the outer surface of the conveyor belt 62 wound around the end roller 46 at the side facing the belt conveyor 6, while the lower side of the four-way sealing machine 4 A side portion facing the receiving end roller 46 is formed substantially vertically, and an upper portion forms a block shape enlarged in the transport direction. The upper end surface 84a of the transition member main body 84 is aligned at the same height as the conveyance surface formed by the conveyance belt 62 of the upstream belt conveyor 6 and extends horizontally along the conveyance direction, and the surface thereof is smooth. To form a transfer path for the sheet-like packaged item w.

  Further, as shown in FIGS. 4 to 7, along the transfer path formed by the upper end surface 84 a of the crossover member main body 84, a pair of stays are attached to the crossover member main body 84 on both sides thereof. 86 is provided. The upper end surfaces 86 a of these stays 86 are also at the same height as the upper end surface 84 a of the transition member main body 84, and form a transfer path together with the transition member main body 84. In addition, a groove portion 88 having a predetermined width is provided between the upper end surface 84 a of the transition member main body 84 and the upper end surface 86 a of each stay 86 so as to correspond to the two grooves 64 of the belt conveyor 6. In addition, the crossover member main body 84 and the stay 86 extend together at the rear end in the transport direction to a slightly forward position in the transport direction rather than just above the axial center position of the end roller 46 (see FIG. 1). Similar to the member main body 84, the side facing the belt conveyor 6 is formed in an arc shape that follows the outer surface of the conveyor belt 62 wound around the end roller 46.

  In addition, a pickup plate 90 is attached in the groove portion 88 of the transfer path formed in the transition member 8. That is, as shown in FIG. 6, the vertical wall 86b of each stay 86 that forms the groove 88 has a stepped portion on the rear side in the transport direction, and is attached to the stepped portion and attached to the front vertical wall 86b. The pickup plate 90 is attached flush with the surface. The pickup plate 90 protrudes rearward in the conveying direction to a position just above the axial center position of the end roller 66 of the belt conveyor 6 and extends into the groove 64 formed in the conveying belt 62 of the belt conveyor 6. The upper end edge 90a of the stay 86 is the same as the upper end surface 86a of the stay 86, and functions as a part of the transfer path.

  Support blocks 92 are attached to both side surfaces of the crossover member main body 84 located below each stay 86, and a sheet-like packaged article passing on the transfer path is provided on the upper surface of the support block 92. A plurality of rollers 94 that are in contact with the side edge of w and regulate the displacement in the width direction of the sheet-like packaged object w are arranged to be rotatable along both sides of the transfer path. In the illustrated example, three rollers 94 are arranged in two rows on each side, and a top plate 93 is rotatably supported by connecting a rotation shaft (not shown) of each roller 94 to the upper portion of each row. Is provided. Further, on the outer peripheral surface of these rollers 94, a cross-section V that engages with the side edge of the sheet-shaped package w and regulates the vertical shift (particularly upward shift) of the sheet-shaped package w. A letter-shaped annular groove 96 is formed to be flush with the transfer path (see FIGS. 5 and 7).

  On the other hand, as shown in FIG. 1, above the upstream belt conveyor 6, a pushing means 10 that abuts against the rear end portion in the carrying direction of the sheet-like packaged material w that is conveyed to the conveyance end and pushes forward. Is provided. Then, the sheet-like packaged object w is pushed by the feeding means 10, passes through the transfer path of the transfer member 8, and is supplied onto the lower belt-like film 42 via the transfer member 8. .

  The pushing means 10 is moved forward and backward by a box motion actuated back and forth in the conveying direction in synchronization with the operation of the upstream belt conveyor 6 by an actuating mechanism (not shown) (this embodiment). Then, a parallelogram movement trajectory is drawn as shown by arrows in FIG. That is, in FIGS. 1 to 5, reference numeral 12 denotes an output portion of an operating mechanism that operates the box motion. The pushing means 10 includes the operating mechanism, a support stay 14 attached to the output portion 12, and the support stay 14. And a pusher 16 attached to the lower surface and extending downward. The pusher 16 is suspended from the support stay 14 directly above the conveyor belt 62, and on both sides of the lower end thereof, two grooves 64 of the conveyor belt 62 in the lowered position range ab shown in the movement locus. A pair of projecting pieces 18 inserted into the two groove portions 88 of the transfer path of the transfer member 8 are provided. In addition, a claw piece 18 a protruding forward is formed at the tip of each protruding piece 18. The pair of projecting pieces 18 are in contact with the left and right sides of the rear end portion of the sheet-shaped packaged object w to push the sheet-shaped packaged object w. Here, the groove portion 64 of the conveyor belt 62 and the groove portion 88 of the transfer path of the crossover member 8 are formed with a width that is larger than the width of the protrusion 18 of the pusher 16, and the transfer member 8 is moved. The pickup plate 90 attached to the vertical wall in the groove portion 88 of the loading path extends toward the groove portion 64 of the conveyor belt 62 while avoiding buffering with the projecting piece 18 of the pusher 16. In addition, the front surface of the pusher 16 is provided with a protruding portion 20 that regulates the upward lifting of the rear end edge of the sheet-like packaged object w.

  8A and 8B are diagrams for explaining the box motion operation of the pushing means. FIG. 8A is a standby position, FIG. 8B is a pushing operation start position, FIG. 8C is a pushing end position, and FIG. FIG. (D) shows the state of moving to the disengagement position, and corresponds to the positions a to d shown in the movement locus in FIG. Here, as shown in FIG. 5C, the pushing means 10 conveys the sheet-like packaged item w at the pushing end end position of the pusher 16 more than the arrangement position of the roller 48 of the upper receiving end guide. It is set on the upstream side by an amount corresponding to the direction length l. Further, the pushing speed of the pushing means 10 is set slightly higher than the drawing speed of the upper and lower belt-like films 42 and 44.

  Next, the operation of the supply mechanism for the sheet-like packaged item w configured as described above will be described. The standby position state shown in FIG. 8 (a) is the position where the pushing means 10 is most retracted. From this state, the pushing means 10 performs a box motion (see also FIG. 1) that forms a parallelogram, and operates the belt conveyor 6. Will be repeated synchronously. That is, the pusher 16 of the pushing means 10 descends simultaneously with the forward movement, and moves to the pushing operation start position shown in FIG. At this time, the protrusion 18 at the tip of the pusher 16 is inserted into the groove 64 of the conveyor belt 62. At the time of this insertion, the sheet-shaped package w is transported and moved slightly forward of the projecting piece 18 on the transport belt 62.

  When the pusher 16 reaches the pushing operation start position, the pusher 16 stops its lowering operation and moves forward horizontally to the position shown in FIG. At this time, the pair of projecting pieces 18 of the pusher 16 follow the sheet-shaped package w on the conveyor belt 62, and when the sheet-shaped package w reaches the conveyance end of the belt conveyor 6, Pushing is started and pushing is started.

  Here, the article to be packaged w that has reached the conveyance end of the belt conveyor 6 is scooped up by the pickup plate 90 of the transition member 8 whose rear end portion is inserted into the groove portion 64 of the conveyance belt 62, while the end roller 66. The conveyor belt 62 wound around is separated and reversed downward, and the article to be packaged w is moved onto the transfer path of the crossover member 8. That is, when the article to be packaged w moves on the transfer path, the pair of projecting pieces 18 of the pusher 16 come into contact with the left and right sides of the rear end portion of the article to be packaged w at two points, and actual pushing is started. The In other words, even if the left and right misalignment (posture misalignment) occurs in the article to be packaged w on the conveyor belt 62, this misalignment is corrected when both the pair of projecting pieces 18 of the pusher 16 come into contact with each other. become.

  In addition, the article to be packaged w that is pushed by the pusher 16 and passes through the transfer path is formed in the annular grooves 96 of the plurality of rollers 94 that have both side edges in the conveying direction standing on the side of the transfer path. Engaging sequentially, the positional deviation in the width direction orthogonal to the conveying direction is corrected or restricted, and the upward lifting is also restricted by the annular groove 96. Further, the article to be packaged w is pushed forward by the protruding portion 20 provided on the front surface of the pusher 16 while preventing the trailing edge from being rolled up and lifted up.

  Then, the article to be packaged w passes through the transfer path while being pushed by the pusher 16 and is transferred onto the lower belt-like film 42. At this time, as described above, the pushing speed of the pusher 16 is increased. Is slightly faster than the conveying speed of the lower belt-like film 42, so that the article w to be wrapped is not disturbed by the lower belt-like film 42 until the push-up end of the pusher 16 is reached. It is moved forward and moved forward relatively.

  Here, the push-out end of the pusher 16 is positioned rearward in the transport direction from the position of the upper guide roller 48 that horizontally guides the upper belt-like film 44, and the separation distance is the transport distance of the sheet-shaped package w. Since the length of the object to be packaged w is pushed to the end of extrusion by the pusher 16, the leading end is exactly the overlapping position of the lower belt-like film 42 and the upper belt-like film 44. Will be reached. That is, the front end of the article to be packaged w is inserted under the upper guide roller 48 and pushed between the overlapping portions of the upper and lower films 42, 44, and thereafter, the upper strip film 44 is covered on the upper surface. Thus, the film is sandwiched between the upper and lower belt-like films 42 and 44 and conveyed forward. That is, the article to be packaged w is pushed by the pair of projecting pieces 18 of the pusher 16 while maintaining the normal posture, and is sandwiched between the upper and lower belt-like films 42 and 44 as shown in the figure on the downstream side. It is conveyed to the seal part, and both sides and the end part are sealed and cut and manufactured into a package. For this reason, since the sheet-like package w is supplied with the relative position, posture, and interval always being constantly and normally aligned between the upper and lower belt-like films 42, 44, it is bitten by an end seal device or the like. It is possible to suppress the occurrence rate of defective products as much as possible.

  Then, the pusher 16 that has moved to the end of pushing is then moved upward and backward to the release position obliquely rearward and upward as shown in FIG. 8 (d), and then horizontally moved back to the standby position in FIG. 8 (a). After returning, the parallelogram box motion is repeated, and the sheet-like package w is transferred onto the lower belt-like film 42 at a predetermined interval.

It is a side view which shows an example of embodiment of the supply mechanism of the sheet-like packaged article w which concerns on this invention. FIG. 2 is a cross-sectional view taken along line II-II in FIG. 1. It is a principal part enlarged view in FIG. FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. 1. It is a principal part enlarged view in FIG. It is a top view of a transition member. It is a side view of a transition member. It is a figure explaining the operating state of a pushing means.

Explanation of symbols

2 Sheet-like packaged supply device 4 Four-side seal packaging machine 6 Upstream belt conveyor 8 Transition member 10 Pushing means 12 Output section 14 Support stay 16 Pusher 18 Projection piece 20 Projection section 42 Lower band film 44 Upper band film 46 Below Side receiving end guide (roller)
48 Upper receiving end guide (roller)
62 Conveyor belt 62
64 Groove 66 End roller 82 Support bar 84 Transition member main body 84a Upper surface 86 Stay 86a Upper surface 88 Groove 90 Pickup plate 90a Upper surface 92 Support block 94 Roller 96 Annular groove w Sheet-like package

Claims (5)

The upper and lower long belt-like strips that are placed on the upstream belt conveyor and are intermittently conveyed at predetermined intervals toward the conveyance end, run in the longitudinal direction along the conveyance direction. It is a mechanism for supplying a package receiving end of a four-side seal wrapping machine that is sandwiched between films and heat-sealed on its four sides,
A lower receiving end guide that horizontally guides the lower belt-like film supplied from below in the vicinity of the conveyance end of the upstream conveyor;
An upper receiving end guide that horizontally guides the upper belt-like film supplied from above in the vicinity of the conveyance end of the upstream conveyor;
A transition member provided between the lower receiving end guide and the conveyance end of the upstream belt conveyor, and forming a transfer path for the sheet-shaped article;
The sheet-like package to be conveyed to the conveyance end of the upstream belt conveyor is brought into contact with the rear end and pushed, and guided to the lower receiving end guide through the transfer path of the transition member. A feeding means for feeding on the lower belt-like film;
With
The upper receiving end guide is arranged shifted downstream from the lower receiving end guide by an axial distance slightly shorter than the length of the sheet-shaped package in the conveying direction, and
The pushing end of the pushing means is set upstream from the arrangement position of the upper receiving end guide by an amount corresponding to the length in the conveying direction of the sheet-like packaged object,
And the pushing speed of the pushing means is set faster than the pulling speed of the two belt-like films,
A sheet-like packaged supply mechanism characterized by the above. The pushing means is disposed above the upstream belt conveyor, and moves forward and backward by a box motion back and forth along the conveying direction, and extends downward to both right and left sides of the rear end of the sheet-like packaged article. Has two pushers that come into contact with
In the upstream belt conveyor and the crossing member, a groove portion through which the tip of the pusher is inserted is formed along the belt length direction,
In the groove portion of the transition member, a pickup plate is provided that extends toward the groove portion of the upstream belt conveyor and forms a transfer path on the upper surface while avoiding buffering with the pusher.
The sheet-type package supply mechanism according to claim 1. The crossover member is provided with a plurality of rollers standing upright on both sides of the transfer path so as to abut against the side edges of the sheet-like packaged articles and restrict displacement in the width direction. A supply mechanism for a sheet-like packaged article according to claim 1. On the outer peripheral surface of the roller, an annular groove is formed that engages with the side edge of the sheet-like packaged article and regulates the upward displacement.
The sheet-like packaged supply mechanism according to claim 3. The pusher is provided with a protrusion on the front surface that regulates the upward lifting of the rear end edge of the sheet-like packaged object.
The sheet-like packaged supply mechanism according to any one of claims 2 to 4, wherein

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