JP3683634B2 - Packaging equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a packaging device capable of automatically packaging a pack case or the like.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, for example, a resin-made pack case for storing food or the like is not opened (cannot be removed) from a case body using a stapler, an adhesive tape, or a rubber band after the case body is covered with a lid body. I stopped like that.
All of these operations were performed manually.
[0003]
[Problems to be solved by the invention]
The operation of fixing the case main body and the lid with a stapler, an adhesive tape, or a rubber band is troublesome and not only inferior in work efficiency but also inconvenient in appearance after being stopped.
The present invention has been made in view of the above circumstances, and a stapler, an adhesive tape, or a rubber band is attached to a packaged item such as a pack case around an endless packaging material. It is an object of the present invention to provide a packaging device that can be replaced by a fastening and a fastening operation thereof, and can automatically and efficiently attach a packaging material to a packaged product.
[0004]
[Means for Solving the Problems]
In the present invention, in order to achieve the above object, the following technical means are taken.
That is, according to the present invention, the conveyor for transporting the packaged goods, the packaging material take-out section for feeding the endless packaging material that can be wound around the packaged goods one by one onto the conveyor, and the conveyor A packaging material set portion for forming a loading space for the packaged product inside the endless in cooperation with the packaging material take-out portion, and a packaging material provided downstream of the packaging material set portion in the conveyor And a packaging material adhering part that blows heated air on
The packaging material take-out section includes a rack that can store packaging materials in a stacked state, a transfer drum that has a plurality of suction holes on the outer peripheral surface and that can be rolled on the top of the rack, A receiving stand that is provided so as to be relatively close to and away from the outer peripheral surface of the transfer drum, and receives the packaging material from the transfer drum in the proximity state, and the packaging material transferred onto the receiving stand is sucked and covered. And a transfer means for supplying the packaged product onto a conveyor.
[0005]
In this packaging apparatus, first, the packaging material take-out section operates.
The packaging material take-out section rolls with the outermost surface of the rolling drum in contact with the outermost surface of the packaging material stacked and accommodated in the rack (that is, advances with rotation). Thus, at the time of rolling, the packaging material is gradually adsorbed from the end portion by the adsorption holes provided on the outer peripheral surface of the transfer drum.
[0006]
Note that the packaging material has an endless shape around which an article to be packaged such as a pack case can be wound. However, in the rack, the packaging material is folded in two into a single sheet.
Therefore, at this time, the packaging material is attracted to the transfer drum to be rolled up, but the packaging material that is not in contact with the transfer drum (that is, the second or lower packaging material) is affected by the strength of its own waist. It will be prevented from being lifted, and if it is lifted, it will drop immediately. For this reason, it is possible to take out only one packaging material from the rack.
[0007]
Then, the single packaging material adsorbed on the outer peripheral surface of the transfer drum is wound off from the transfer drum by a receiving stand that is relatively close to the rotating transfer drum that continues to rotate. . In addition, the packaging material transferred onto the receiving table in this way is supplied onto the conveyor for the articles to be packaged by the transfer means.
Next, the packaging material setting unit operates. This packaging material set unit absorbs a surface opposite to the surface held by the transporting means of the packaging material take-out portion with respect to one packaging material taken out on the conveyor, The packaging material is folded in half by a cooperative action (moving away from each other). Accordingly, a space for loading the packaged goods is formed inside the packaging material.
[0008]
When the packaging material is formed in a ring shape in this way, the conveyor operates to insert the packaged product into the ring shape of the packaging material. And in a subsequent conveyance process, a packaging material adhere | attached part sprays heated air (hot air) on a packaging material, and comes to shrink | contract a packaging material. As a result, the packaging material is attached to the packaged product (tightened state).
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
2 to 8 show a packaging device 1 which is one of the embodiments of the present invention. This packaging device 1 is used for a packaged product P such as a pack case as shown in FIG. The endless packaging material S is fitted in a wound shape around it.
[0010]
In addition, the packaged product P is a pack case, and a case body B storing food (not shown) is covered with a lid C.
In addition, the packaging material S is obtained by connecting a thin transparent resin sheet formed in a band shape in an endless manner in advance, and is initially prepared in a state of being folded in two so that the connecting portion is one side (note that FIG. 1B is a side sectional view of a folded state, and FIG. 1D is an annular state. In addition, on a part of the surface (the part corresponding to the upper surface of the packaged product P), the type and handling instructions of the contents stored in the packaged product P, advertisements, or the like are printed. For the packaging material S, a material that shrinks when heated to a predetermined temperature or higher is used.
[0011]
In FIG. 2, a packaging device 1 includes a transfer table 2 that is provided so as to be horizontally movable so as to reciprocate within a predetermined range, and a packaging material take-out unit 3 that supplies a packaging material S to a moving terminal X of the transfer table 2. And a conveyor 5 that conveys the packaging material P 4 (see FIG. 1) sent to the moving terminal portion X of the transfer table 2 further downstream. And a packaging material adhering portion 6 provided in the conveying path of the conveyor 5.
[0012]
The conveyor 5 is provided so as to extend substantially over the entire length of the packaging device 1 (the left-right direction in FIG. 2), and the packaged product P can be conveyed with the left side in FIG. 2 as the upstream side and the right side as the downstream side. ing.
As shown in FIG. 3, the conveyor 5 is configured such that an endless transport belt 9 is spanned between a pair of wheels 7 and 8 and at least one of the wheels 7 and 8 is rotationally driven. The driving is performed for a predetermined time (or only a necessary conveyance amount) as required.
[0013]
In the example shown in the figure, as the transport band 9, a plurality of stainless steel transfer plates are connected to form an endless structure (caterpillar-shaped), and at least one transfer plate (in the example shown in the figure, The engagement pieces 10 projecting outward in the circumferential direction are provided on the three conveyance plates that are equally arranged.
Accordingly, the packaged product P is boosted by the engagement piece 10 and is reliably transported without slipping. The engaging piece 10 is provided because the packaged product P is relatively light and easily slips, and is not essential.
[0014]
The transfer table 2 reciprocates in the range from the upstream position (the left end portion in FIG. 2) to the substantially central position (the moving end portion X described above) along the conveying direction of the conveyor 5.
In this transfer table 2, a pair of support portions 14 are provided so as to sandwich both sides of the conveyor 5, and these support portions 14 support both side edges of the bottom portion of the packaged product P. These support portions 14 are formed of L-shaped strips as shown in FIG. 4, and are connected to each other by a slide plate 15 disposed on the lower part of the conveying surface of the conveyor 5 in an opposed state. The slide plate 15 receives horizontal movement guidance and driving.
[0015]
In the example shown in the figure, a sliding support 16 inserted through a pair of horizontal guide bars (not shown) is provided on the lower surface of the slide plate 15 and is connected to a belt transmission means 18 driven by an electric motor. The coupling tool 17 is provided.
The structure for guiding and driving such horizontal movement is not limited at all, and other sliding guide means (spline shaft structure, linear way structure, etc.) and drive means (chain transmission means, fluid pressure cylinder ( Including a rodless cylinder), a ball screw mechanism, a rack feed mechanism, and the like.
[0016]
The support portion 14 is provided with an engagement piece 19 for pushing the packaged product P upright at the upstream end portion thereof, and extends at the downstream end portion thereof in a tapered shape. A nose portion 20 is provided. As will be described later, with respect to the packaging material S held in a ring shape, the transfer table 2 is loaded into the ring shape while receiving the article P to be packaged. The part 20 is configured so that the packaging material S is formed in a laterally open shape by a wedge action so as to facilitate loading and certainty.
[0017]
The packaging material take-out part 3 includes a rack 25 for storing and holding a plurality of packaging materials S at an upper position (slightly upstream) with respect to the movement terminal part X of the transfer table 2 as shown in FIG. One sheet of packaging material S is taken out from the rack 25 and supplied to the moving terminal portion X.
The rack 25 is held by a pair of support frames 26 erected at positions sandwiching the movement path of the conveyor 5 and the transfer table 2 from both sides, and stores the packaging material S in an erected state. . In the rack 25, the surface facing the downstream side of the conveyor 5 is open, and one surface of the stored packaging material S is exposed. A stopper bar 27 that prevents the packaging material S from falling off is installed in the open portion. Reference numeral 28 denotes a rear urging means for the packaging material S.
[0018]
As shown in FIG. 5, the packaging material take-out section 3 has double parallel links 30 and 31 (that is, a pair corresponding to each support frame 26) with respect to the support frame 26 (see FIG. 2). A suction part (hereinafter referred to as “extraction-side suction part”) 33 is provided through the connecting stay 32 by these parallel links 30 and 31.
Both parallel links 30 and 31 have the suction side 33 in a state where the suction surface is in a horizontal position with the suction surface below the transport surface of the conveyor 5 (movement end portion X of the transfer table 2) (arrow Y). And a state where the suction surface is in contact with the packaging material S in the rack 25 and is in a vertical posture (see arrow Z). These parallel links 30 and 31 can be driven using an appropriate driving tool (not shown) such as a fluid pressure cylinder, a fluid pressure motor, or an electric motor.
[0019]
As shown in FIG. 2, the take-out suction unit 33 is positioned so as to sandwich the movement path of the conveyor 5 and the transfer table 2 from both sides, and can be brought into contact with both ends of the packaging material S (see FIG. 6). Reference) is provided and at least two are provided.
As shown in FIG. 6, it is preferable that two take-out suction portions 33 are brought into contact with the upper and lower ends of the packaging material S stored in the rack 25 (four in total). In this case, the thing which abuts on both ends near the lower side of the packaging material S has a vertically long suction surface, and the thing which abuts on both ends near the lower part of the stopper bar 27 provided on the rack 25 has a suction surface. The circular shape was suitable for reliably removing the packaging material S from the rack 25.
[0020]
Unlike the example shown in the figure, when the conveyor 5 has a configuration in which a plurality of endless thin belts or band cord belts are spanned at a predetermined interval (not shown), the space between the belts is reduced. It is also possible to provide a take-out suction part 33 that swings through the suction part 33, whereby the central part of the packaging material S can also be sucked.
[0021]
Needless to say, the take-out suction portion 33 is appropriately connected to a suction device (not shown) and air piping, and suction is started when the suction surface comes into contact with the packaging material S in the rack 25. After the packaging material S is supplied onto the conveyor 5, it continues for a predetermined time.
As shown in FIG. 2, the packaging material setting unit 4 is provided at a position directly above the take-out suction unit 33 when the suction surface is placed in a horizontal posture at a position below the transport surface of the conveyor 5. The take-out suction part 33 is configured to form the packing material S in a suction state in a ring shape.
[0022]
The packaging material setting section 4 is held up and down along the guide bar 38 in the up-and-down holding frame 37 as shown in FIG. The lifting block 39, a rotary shaft 40 (see FIG. 2) that protrudes from the lifting block 39 so as to cross over the conveyor 5, and a suction surface facing the rotary shaft 40 downward. A provided suction portion (hereinafter referred to as “set-side suction portion”) 42 and a shifting means 43 that rotates the rotary shaft 40 in accordance with the lifting operation of the lifting block 39 are provided.
[0023]
The raising / lowering of the raising / lowering block 39 is driven by appropriate drive means (not shown) such as a fluid pressure cylinder (including a rodless cylinder), a ball screw mechanism driven by an electric motor, a rack feed mechanism, and a chain transmission. The raising / lowering stroke is in a range between a lower position where the suction surface of the set-side suction portion 42 (see FIG. 2) reaches the upper surface of the conveyor 5 and an upper retreat position where the operation does not interfere with the operation of the packaging material take-out portion 3. .
[0024]
The set-side suction part 42 is arranged at a predetermined interval in the axial direction with respect to the rotating shaft 40 (see FIG. 8), and is fixed to rotate integrally with the rotating shaft 40.
In the illustrated example, the set-side suction portion 42 should abut the both ends and the center portion of the packaging material S sucked and held on the conveyor 5 by the take-out suction portion 33 as shown in FIG. A total of three were provided. In this case, it is preferable that the abutting surface of the packaging material S has a rectangular suction surface, and the abutting surface of the packaging material S has a circular suction surface.
[0025]
Needless to say, the set-side suction part 42 is appropriately connected to a suction device (not shown) and air piping, and suction starts when the suction surface comes into contact with the packaging material S on the conveyor 5. Thereafter, it continues for a predetermined time.
As shown in FIGS. 1 (b) and 1 (c), the slip means 43 is lowered along the conveying direction of the conveyor 5 after the set-side suction portion 42 is lowered to a height at which the set-side suction section 42 contacts the packaging material S on the conveyor 5. It can be moved horizontally. As shown in FIG. 7, the displacement means 43 includes a lever body 47 provided on the rotary shaft 40 so as to rotate integrally therewith, and a spring that urges the lever body 47 downward with respect to the lifting block 39. 48 and a stopper 49 that comes into contact with the lever body 47 when the elevating block 39 reaches the lowest position of the lowering stroke.
[0026]
In the rotating shaft 40, when the lever body 47 is not in contact with the stopper 49, that is, when the elevating block 39 has not reached the lowest position of the lowering stroke, the respective suction portions 42 are horizontal (the suction surface faces downward). Is supposed to hold.
The stopper 49 is properly fixed at the side of the conveyor 5. In addition, it is preferable that the height of the stopper 49 can be adjusted by using a bolt as the support shaft 50.
[0027]
Since the displacement means 43 has such a configuration, when the lever body 47 comes into contact with the stopper 49 by the lowering of the elevating block 39 (at this time, as shown in FIG. The lever body 47 is flipped up by further lowering of the lifting block 39. Along with this, the rotating shaft 40 rotates counterclockwise in FIG. 7, so that the set-side suction portion 42 swings upward.
[0028]
That is, the upward swing of the set-side suction unit 42 generates a component that slightly moves the positioning of the set-side suction unit 42 with respect to the take-out side suction unit 33 in the horizontal direction along the conveying direction of the conveyor 5. As shown in FIG. 1C, the packaging material S is caused to shift.
Such a shifting operation is performed because, in the packaging material S that is folded in two when it is stored in the rack 25, the folded surfaces may be in a vacuum contact state. This is because, even if the packaging material S in which the folding surfaces are in a vacuum contact state is simply pulled to opposite sides, it is difficult to open it in a ring shape (there are many failures). That is, by performing this shifting operation, it is possible to reliably and easily peel the folded surfaces in a vacuum contact state.
[0029]
Therefore, after that, by raising the elevating block 39, the packaging material S is formed into a ring shape as shown in FIG.
The packaging material adhering portion 6 (see FIG. 2) blows heated air (hot air) from both sides of the conveyor 5 to the packaging material S wound around the packaged product P, thereby It is made to shrink | contract and it is made to be an adhesion state (tightening state) with respect to the packaged goods P. FIG.
[0030]
The packaging material adherent portion 6 includes a pair of hot air ejectors 52 fixed to both sides of the conveyor 5. The temperature of the heated air ejected from these hot air ejectors 52 is appropriately changed according to the material used as the packaging material S. The hot air ejector 52 is, for example, a detector (not shown) that generates an operation signal when the packaging material S wound around the packaged product P passes between the hot air ejectors 52. May be provided so as to start the operation and then operate for a predetermined time.
[0031]
In the wrapping apparatus 1 configured as described above, in the standby state, the transfer table 2 stops at the upstream position as shown in FIG. 2, and the conveyor 5 moves the engagement piece 10 further upstream than the transfer table 2. The packaging material take-out part 3 stops with the take-out suction part 33 at the lower position (suction operation also stops), and the packaging material set part 4 stops with the set-side suction part 42 at the upper position (suction operation also takes place). The packaging material adherent portion 6 is also stopped.
[0032]
Therefore, the packaged product P is placed on the transfer table 2 and the operation is started. Then, first, the packaging material take-out unit 3 operates to take out one piece of packaging material S from the rack 25 and supply it to the upper part of the conveyor 5 (the movement terminal part X of the transfer table 2).
Next, the packaging material setting unit 4 is operated while the extraction side suction unit 33 maintains the suction state in the packaging material extraction unit 3, and the upper surface of the extracted packaging material S is adsorbed by the set side suction unit 42 ( (Refer FIG.1 (b)).
[0033]
Then, due to the action of the shifting means 43 that occurs substantially simultaneously with this, a shifting operation is caused between the two folds of the packaging material S as shown in FIG.
Next, in the packaging material setting part 4, the raising / lowering block 39 raises and the packaging material S is hold | maintained at a ring-shaped attitude | position as shown in FIG.1 (d).
Next, the transfer table 2 moves to the moving terminal X while receiving the packaged product P. Thereby, the article P to be packaged is inserted into the ring-shaped inside (the charging space) of the packaging material S.
[0034]
In this state, the conveyor 5 operates. Therefore, the engagement piece 10 of the conveyor 5 passes through between the engagement pieces 19 in the transfer table 2 and pushes out the packaged product P loaded in the packaging material S and conveys it downstream. During the conveyance, heated air is blown by the packaging material adherent portion 6 so that the packaging material S is attached to the packaged product P.
Thereafter, each unit returns to the standby state.
[0035]
By the way, about the extraction side suction part 33 of the packaging material extraction part 3 and the set side suction part 42 of the packaging material set part 4, the arrangement, the number, the suction surface shape, and the like can be changed as appropriate.
Further, in causing the packaging material S to be displaced, instead of slightly moving the set side suction portion 42 of the packaging material setting portion 4 in the horizontal direction, the extraction side suction portion 33 of the packaging material extraction portion 3 is horizontally moved. It may be moved slightly in the direction. In addition, both may be moved horizontally in opposite directions.
[0036]
The transmission means, guide means, drive means, etc. used for each part can be replaced with various conventionally known mechanisms, devices, etc. in addition to those described above.
9 to 11 show the packaging device 1 of the present invention in which the configuration of the packaging material take-out portion 3 is mainly different from that of the above embodiment.
The packaging material take-out section 3 in the packaging device 1 has one rack 102, one transfer drum 103, and one receiving table 104 for the packaging material S on both sides (left and right in FIG. 10) with one transfer means 101 in between. Each unit (ie, two units in total) is provided.
[0037]
On the side of the transfer means 101 (upper part of FIG. 10), there is provided a conveyor 5 for transporting the packaged product P. The transfer means 101 takes out the packaging material S from the receiving trays 104 alternately. Is supplied onto the conveyor 5 each time, and an auxiliary operation for fitting the article P to be packaged into the packaging material S on the conveyor 5 is performed.
[0038]
As shown in FIGS. 10 and 11, the conveyor 5 has an endless transport belt 9 spanned between a pair of wheels 7, 8 held near the both ends in the longitudinal direction of the conveyor frame 105, and at least one of the wheels 7, 8 is configured to be rotationally driven. Further, guide rails 106 for supporting the packaged product P are provided on both sides of the transport band 9.
[0039]
The transport band 9 is constituted by an endless chain provided with a stainless steel transport plate (see reference numeral 9a in FIG. 12), and at least one of the transport plates 9a is engaged in an outward projecting manner in the circumferential direction. A piece 10 is provided. The driving of the transport band 9 is performed for a predetermined time (or only a necessary transport amount) as necessary.
[0040]
Accordingly, the packaged product P is boosted by the engagement piece 10 and is reliably transported without slipping.
For this conveyor 5, a packaging material set unit 4 is provided at a portion where the packaging material S is supplied by the packaging material take-out unit 3.
As shown in FIG. 12, the packaging material setting unit 4 has an intake chamber 107 formed by hollowing out the interior of the guide rail 106 along its longitudinal direction, and the intake chamber 107 is passed through the upper surface of the guide rail 106. And a suction hole 108. Therefore, the lower surface side of the single packaging material S supplied onto the conveyor 5 by the packaging material take-out unit 3 can be sucked and held.
[0041]
Further, a packaging material adhering portion 6 is provided at a portion downstream of the packaging material setting portion 4 with respect to the conveyor 5. The packaging material adherent portion 6 is substantially the same as that of the above-described embodiment (see FIG. 2), and includes a pair of hot air ejectors 52 facing each other with the conveyor 5 interposed therebetween.
In the packaging material take-out portion 3, the rack 102 is folded in two so that a large number of packaging materials S (thin transparent resin sheets formed in a strip shape are connected in an endless manner, and the connecting portion becomes one side portion). Can be stored in a stacked state. Then, as shown in FIG. 11, when the packaging material S is taken out one by one from the top, a vertical screw feed elevator mechanism 110 is provided so that the upper surface level is always kept constant. .
[0042]
The transfer drum 103 is provided so as to be movable toward and away from the conveyor 5 with its axis parallel to the conveying direction of the conveyor 5. It passes through the top.
On the outer peripheral surface of the transfer drum 103, as shown in FIG. 13, a plurality of projections and depressions are formed side by side in the axial direction, and suction holes 112 are provided in the convex portions. As shown in FIGS. 14 and 15, a plurality of the suction holes 112 are dispersedly arranged in a range of about 1/4 to 1/2 circumference.
[0043]
When the transfer drum 103 moves on the rack 102, the outer peripheral surface (circumferential region where the suction holes 112 are disposed) facing downward is always in contact with the uppermost packaging material S in the rack 102. The rotation along the moving direction is accompanied. That is, the movement of the transfer drum 103 is in a rolling state.
Note that the outer peripheral surface of the transfer drum 103 has a portion that comes into contact with the packaging material S when the transfer drum 103 is positioned at a position where the packaging material S starts to be sucked and moved (state shown in FIG. 14). A step portion for providing the flat surface 113 is provided. In the flat surface 113, at least one suction hole 112 is arranged.
[0044]
Such rolling of the rolling drum 103 is realized by the following structure.
That is, the transfer drum 103 has a drum body 115 and a rotating shaft 116 penetrating the drum body 115 as shown in FIG. 13, and a bearing tool 117 is provided on one end side (left side of FIG. 13) of the rotating shaft 116. A shaft support plate 118 is provided, and a large-diameter spur gear 122 is attached to the other end side (right side in FIG. 13) via a drum press 121 having a bearing member 120. The drum body 115, the rotating shaft 116, and the spur gear 122 are in a fixed relationship with each other so as to rotate integrally.
[0045]
Note that the drum retainer 121 and the drum body 115 are in airtight contact with each other, and circumferential grooves are formed on each surface that contact each other to form an annular air passage 124 (see FIG. 14). ing. The drum body 115 is formed with an air supply path 125 that allows the suction holes 112 to communicate from the annular air path 124 along the rotary shaft 116. Therefore, the drum retainer 121 forms a rotary valve with the end of the drum body 115.
[0046]
The shaft support plate 118 is provided with a sliding roller 128 near its lower portion, and the drum retainer 121 is connected to the slider block 130 and the chain via a support stay 129 that protrudes outward in the axial direction without interfering with the spur gear 122. A link 131 is provided.
The guide rail 135 is laid to guide and support the sliding roller 128, the guide bar 136 is laid to pass through the slider block 130, and is connected to both sides of the chain connection link 131. The endless chain 137 and the rack 138 laid in mesh with the spur gear 122 are arranged in parallel with each other in the longitudinal direction (see FIG. 10).
[0047]
The endless chain 137 is driven by a motor 141 via a chain transmission means 140 as shown in FIG. In the endless chain 137 that is arranged on one side of the transfer means 101, the chain connection link 131 is connected to the upper extension line, and in the endless chain 137 that is arranged on the other side, the chain connection link 131 is connected to the lower extension line. Connected. Therefore, the rolling of each transfer drum 103 is opposite to each other and one cycle is synchronized.
[0048]
As shown in FIG. 16, the receiving table 104 is formed such that a plurality of linear members 145 are arranged in parallel with each other at a predetermined interval so as to form a trapezoid as a whole. The mutual spacing of the linear members 145 is made equal to the mutual spacing of the projections and depressions provided on the outer peripheral surface of the transfer drum 103, and the linear members 145 have a thickness that fits into the concave portions. Is formed.
[0049]
When the transfer drum 103 moves from the rack 102 toward the conveyor 5, the receiving table 104 has the packaging material S sucked and held on its outer peripheral surface as shown in FIGS. The tip is aligned at such a position. The transfer drum 103 continues to move by entering the lower part of the receiving table 104.
[0050]
As shown in FIGS. 9 to 11, the transfer means 101 has an upright drive shaft 148 that can be moved up and down and turned by 90 °, and is opened 90 ° horizontally from the upper end of the upright drive shaft 148. There are two support arms 149 provided at an angle, and a suction part 150 provided downward at the protruding end of each support arm 149.
[0051]
As shown in FIG. 11, the vertical drive shaft 148 is moved up and down by a cam 151 driven by a motor to transmit power from a follower link 152 that swings up and down with a predetermined stroke to a top pin 153 at the lower end of the shaft. It is done in Such a cam mechanism can be replaced with a crank mechanism, a rack-pinion engagement mechanism, a ball screw mechanism, a fluid pressure cylinder, or the like.
[0052]
Further, the rotation of the standing drive shaft 148 is caused by belt transmission means with respect to the driven wheel 154 that has an engagement relationship such as spline engagement with the standing drive shaft 148 and is capable of relative axial movement. The motor drive is transmitted by such as.
The shaft of the standing drive shaft 148 is positioned at the center between the receiving tables 104. Further, the distance from the standing drive shaft 148 to the one receiving table 104 and the distance from the standing drive shaft 148 to the center position in the width direction of the conveyor 5 are set equal. Therefore, when one suction part 150 is positioned right above one receiving table 104, the other suction part 150 is positioned right above the conveyor 5, and if each support arm 149 is turned 90 °, Each suction unit 150 is moved from the receiving table 104 to the conveyor 5 and from the conveyor 5 to the other receiving table 104.
[0053]
As shown in FIG. 11, the upper surface level of each receiving platform 104 is equal to the upper surface level of the conveyor 5, and when the upright drive shaft 148 is lowered, each suction portion 150 is simultaneously applied to both the receiving platform 104 and the conveyor 5. To reach. Further, when the standing drive shaft 148 is raised, the suction portion 150 is raised to a height at which it does not interfere with the packaged product P on the conveyor 5.
[0054]
The suction portion 150 has a hollow thin box shape, and a plurality of suction holes 160 are provided on the lower surface thereof as shown in FIG. These suction holes 160 do not match the suction hole 108 as the packaging material set portion 4 provided on the guide rail 106 of the conveyor 5 in either the transport direction or the width direction in the conveyor 5. It is misaligned.
[0055]
For this reason, in the packaging material S, even when the folding surfaces are in a vacuum contact state, the upper and lower suction holes 160 and 108 are only pulled to the opposite sides while adsorbing to the upper and lower surfaces of the packaging material S. Thus, it can be surely and easily opened in a ring shape.
The movement of the packaging apparatus 1 having such a configuration will be described.
[0056]
First, in the packaging material take-out section 3, the transfer drum 103 has a flat outer peripheral surface toward the suction start end side (left side in FIG. 14) with respect to the packaging material S positioned at the top of the rack 102 as shown in FIG. It waits in the state which makes the surface 113 contact.
When the transfer drum 103 starts rolling toward the receiving table 104 while keeping the suction holes 112 in the suction state, the packaging material S in the rack 102 is pressed at the passing position of the transfer drum 103. From immediately after passing, it is attracted to the outer peripheral surface and wound up.
[0057]
In the packaging material S, as shown in FIG. 15, the portion adsorbed on the flat surface 113 of the transfer drum 103 is wound up at a steeper angle than the radius of curvature of the transfer drum 103. The packaging material S that is not in contact with the packaging material (that is, the packaging material S of the second sheet or less) is prevented from being lifted by the strength of its own waist, and will fall immediately even if the lifting occurs. Become. For this reason, only one packaging material S can be taken out from the rack 102.
[0058]
As shown in FIGS. 17 and 18, the single packaging material S sucked and held on the transfer drum 103 in this manner is rolled onto the receiving table 104, and the receiving table 104 is moved. Each of the linear members 145 is inserted into the concave portion of the outer peripheral surface of the transfer drum 103, so that it is peeled off from the transfer drum 103.
Then, as shown in FIG.
[0059]
Next, the transfer means 101 (see FIGS. 9 to 11) starts suction by the suction unit 150 to receive the packaging material S from the receiving table 104 and supplies it to the conveyor 5. In response to this, the suction hole 108 of the packaging material setting unit 4 starts suction. Therefore, the upper and lower surfaces of the packaging material S are in a suction state.
In this state, the transfer means 101 slightly raises the upright drive shaft 148 to make the packaging material S open. This opening is reliably performed because the upper and lower suction holes 160 and 108 are displaced as described above.
[0060]
After the packaging material S is in the open state, the conveyor 5 starts to drive and push the article to be packaged P into the packaging material S. Then, since both the suction part 150 of the packaging material take-out part 3 and the suction hole 108 of the packaging material set part 4 release the suction, the packaging material S and the packaged product P are both sent downstream, During the conveyance, the heated air is blown by the packaging material adherent 6. Therefore, the packaging material S is attached to the packaged product P.
[0061]
By the way, the present invention is not limited to the above embodiment.
For example, providing the unevenness on the outer peripheral surface of the transfer drum 103 and providing the flat surface 113 are not limited.
Further, when the packaging material S sucked and held on the transfer drum 103 is transferred to the receiving table 104 side, the receiving table 104 side may be moved close to the transfer drum 103.
[0062]
The receiving table 104 may be a thin plate that can be brought into sliding contact with the outer peripheral surface of the transfer drum 103.
Needless to say, one transfer means 101 may be provided with one rack 102, one transfer drum 103 and one receiving table 104.
Further, the shape (other than being endless) and the material of the packaging material S are not limited, and the package body P (see FIG. 1A) also has a butterfly motion between the case body B and the lid body C. It is not limited in any way, including those that are freely connected.
[0063]
【The invention's effect】
As is apparent from the above description, in the present invention, an endless packaging material is attached to a packaged item such as a pack case so that a stapler, an adhesive tape, or a rubber band can be fastened. And it is possible to replace it with its fixing work. Therefore, the work efficiency can be extremely increased and automation can be performed. In particular, as compared with the case where a stapler or an adhesive tape is used, the number of fastening positions is small, so that the work efficiency is dramatically increased.
[0064]
In addition, the packaging material can be printed with the type of contents, instruction manuals, advertisements, or the like as desired, so that the appearance can be improved.
And in the packaging apparatus of this invention, the transfer drum which adsorb | sucks a packaging material, rolling on the rack which accommodated the packaging material, the receiving stand which receives a packaging material from this transfer drum, and the packaging on this receiving stand A transfer means for supplying the material onto the conveyor of the article to be packaged, and the transfer drum gradually adsorbs the packaging material in the rack from its end in a winding shape. Since the lifting of the packing material below the first sheet is reliably prevented, the flow of the packing material from the receiving table to the conveyor by the transfer means can surely keep the flow of one sheet per packaged product. it can.
[0065]
For this reason, the operation of fitting the packaging material into the packaged product or the deposition operation can be performed without delay, and the operation efficiency of the entire packaging apparatus can be improved.
Moreover, since there is no failure in taking out the packaging material as described above, there is also an advantage that waste of the packaging material or the like can be prevented.
[Brief description of the drawings]
FIG. 1 (a) is an exploded perspective view showing an article to be packaged and a packaging material, and FIGS. 1 (b), (c) and (d) are operation explanatory views in a situation where the packaging material is formed in a ring shape.
FIG. 2 is a perspective view showing a packaging device according to an embodiment of the present invention.
FIG. 3 is a side view showing a conveyor.
FIG. 4 is a perspective view showing a transfer table.
FIG. 5 is a side view showing a packaging material take-out portion.
FIG. 6 is a layout view showing a suction part provided in the packaging material take-out part.
FIG. 7 is a side cross-sectional view showing a part of the packaging material setting portion.
FIG. 8 is an arrangement portion showing a suction portion provided in the packaging material set portion.
FIG. 9 is a perspective view showing a packaging device according to another embodiment of the present invention.
10 is a plan view of the packaging device of FIG. 9. FIG.
11 is a cross-sectional view taken along line YY in FIG.
12 is an enlarged view of a portion Z in FIG.
FIG. 13 is a front sectional view showing a transfer drum.
FIG. 14 is a side sectional view showing a transfer drum in a standby state.
FIG. 15 is a side cross-sectional view showing a state where the transfer drum starts to adsorb the packaging material.
FIG. 16 is an enlarged perspective view showing a part of a receiving table.
FIG. 17 is an operation explanatory view showing a state in which the transfer drum is close to the receiving table.
18 is an operation explanatory diagram showing a stage subsequent to FIG. 17; FIG.
FIG. 19 is an operation explanatory diagram showing the next stage of FIG. 18;
[Explanation of symbols]
1 Packaging equipment
3 Packaging Material Extraction Department
4 Packaging material set
5 Conveyor
6 Packaging material adherent
101 Transfer means
102 racks
103 Transfer drum
104 receiving stand
112 Adsorption hole
P Packaged items
S packaging material

Claims (1)

A conveyor (5) for transporting the articles to be packaged (P) and an endless packaging material (S) that can be wound around the articles to be packaged (P) on the conveyor (5) one by one. (3) and a packaging material set for forming a loading space for the packaged product (P) inside the endless in cooperation with the packaging material take-out part (3) for the packaging material (S) on the conveyor (5) A part (4) and a packaging material adhering part (6) that is provided downstream of the packaging material set part (4) in the conveyor (5) and blows heated air onto the packaging material (S). Consisting of
The packaging material take-out section (3) has a rack (102) capable of storing packaging materials (S) in a stacked state, and a plurality of suction holes (112) on the outer peripheral surface, and is rolled above the rack (102). A transfer drum (103) provided so as to be movable, and a transfer drum (103) provided in proximity to and away from the outer peripheral surface of the transfer drum (103). A receiving table (104) for receiving the packaging material (S), and the packaging material (S) transferred onto the receiving table (104) are sucked and supplied onto the conveyor (5) of the packaged product (P). A packaging device comprising a transfer means (101).

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