JPS594301B2 - Spout attachment device for paper containers - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for attaching a spout for pouring out contents to a paper container.

Paper containers are being used for a wide range of purposes, including milk, juice, and recently sake, but when pouring out the contents from these paper containers, it is necessary to peel off the adhesive part of the paper container or The opening process is extremely difficult and complicated, and the pouring process cannot be said to be easy, as it requires cutting.5 Also, it is almost impossible to maintain the seal after opening, so it is difficult to maintain hygiene and storage stability. There was also room for improvement.

In order to eliminate such negative aspects of paper containers, the present invention has come up with the idea of attaching a spout to the paper container, and the surface of the paper container is usually coated with a thermoplastic resin coating for the purpose of waterproofing. Focusing on this, a synthetic resin spout is attached to this thermoplastic resin coating by thermal adhesive, and the attachment work is carried out during one rotation of the rotating body in which the paper container is transported. The main features of this device are: a rotating body that is driven to rotate around a single axis; a plurality of paper container holders installed around the outer circumference of this rotating body to hold paper containers; Paper container supply means such as a star wheel that sequentially supplies the paper containers received from the paper container conveyance path outside the rotating body to the paper container holder 20, and a spout provided on the rotating body to face each of the paper container holders. a spout holder for holding the spout, a spout supply means for supplying the spout received from the spout supply path 25 outside the rotating body to the spout holder in synchronization with the paper container supply means, and each of the paper containers described above. 30 heating elements that are movably provided adjacent to and opposite the holder and the spout holder and heat the respective adhesive parts of the paper container and the spout held by the holders, and these heating devices; pressing actuating means provided on the rotary body for bringing the two holders close to each other to press the heated bonded parts of the paper container and the spout after the holder is evacuated from the opposing position; and at the end of one rotation of the rotary body. A paper container discharging means such as a star wheel is provided for receiving the bonded paper containers 35 from the paper container holder and sequentially discharging them to a paper container discharging path outside the rotating body.

The type of thermoplastic resin coating applied to paper containers does not depend on the type of resin used, but currently polyethylene resin is commonly used, and other materials such as polypropylene, modified polyester, and wax can also be used. can.

The synthetic resin used to manufacture the spout may be a resin that has good adhesion to the thermoplastic resin coating of the paper container, such as polyethylene, polypropylene, modified polyester, or the like.

Note that an adhesive may be interposed between the two. The invention will now be described with reference to the illustrated embodiments.

Figure 1 shows paper containers A bonded together by the device of the present invention.
FIG. The paper container A has a rectangular parallelepiped shape as a whole, but has an inclined surface 1 at the top thereof, and an opening 2 is provided in the inclined surface 1. The illustrated paper container A is no different from conventionally known containers if the opening 2 is omitted. On the other hand, spout B
consists of a spout member 3 and a lid member 4, and the spout member 3 has a cylindrical part 6 with a notch 5 formed on one side and a flange-like part formed at the end of the cylindrical part 6 for attaching to the paper container A. It has an adhesive part 7. The lid member 4 is formed into a cylindrical shape with a bottom, and is fitted into the cylindrical portion 6 of the spout member 3 to form a hole between the cylindrical portion 6 and the notch 5.
The opening of the paper container A is sealed. The above-mentioned paper container A and spout B are connected to the periphery of the opening 2 of the paper container A and the end surface of the adhesive part 7 of the spout B by the apparatus of the present invention described below in a state where the lid member 4 is fitted to the spout member 3. After being heated, they are pressed together and bonded together.

However, at that time, it is necessary to attach the spout B to the paper container A with the notch 5 facing upward, and in order to position the spout B in the direction, as shown in FIG. By forming protrusions 7a and 7a' on both sides of the notch 5 around the part 7 and forming the outer periphery of the adhesive part 7 into a roughly D shape, the above-mentioned The direction of the notch 5 can be determined. Next, an embodiment of the present invention apparatus suitable for bonding the paper container A and the spout B together will be described based on the drawings from FIG. 3 onwards.

FIG. 3 shows a schematic plan view of the apparatus of the present invention, in which the paper containers A are continuously fed by a supply conveyor 11,
It comes into contact with a fixed stopper 12 provided at the tip of the supply conveyor 11 and is stopped. An L-shaped extrusion member 13 is disposed in front of the fixed stopper 12, and a cylinder device 14
It is moved forward and backward in a direction perpendicular to the supply conveyor 11. The pushing member 13 has a pushing part that pushes out the paper container A that is stopped in contact with the fixed stopper 12 in the lateral direction;
It is provided with a stopper portion for stopping the next paper container following this paper container, and is operated by the cylinder device 14 to push out the paper containers A one by one laterally. On the extrusion side of the paper container A, a chain 17 extending over a pair of sprockets 15 and 16 is arranged parallel to the supply conveyor 11.
Engagement pieces 18 are attached to this chain 17 at predetermined intervals.

The cylinder device 14 sequentially pushes out the paper containers A between the front and rear engagement pieces 18 in the advancing direction, which are continuously fed by the chain 17.
An interval corresponding to an interval of 8 is provided. A star wheel 19 is provided in front of the paper container A in the conveyance direction by the chain 17, and this star wheel 19, which rotates in synchronization with the chain 17, has pocket portions 2 formed at equal intervals on its outer circumference.
0, a vacuum cup (not shown) provided in each pocket portion 20 to adsorb the paper container A, and a star wheel 1
9 receives the paper container A sent by the engaging piece 18 of the chain 17, and supplies the paper container A into a rotating body 22 which will be described in detail later.

On the other hand, the spout B attached to the paper container A is positioned by a positioning mechanism 2 that aligns the spout B in a certain direction from the chute 23.
4 and whose direction is determined by the positioning mechanism 24 is supplied into the rotating body 22 via the plug conveying disks 25 and 26 (see FIG. 10).

4 to 8 show the positioning machine groove 24, and this positioning mechanism 24 includes a vertical drive shaft 28 rotatably supported on the machine frame 27 and a rotary table 29 fixed to the drive shaft, The rotary table 29 is provided with rotary tables 30 for placing the plugs B at equal intervals of 90 degrees on the same circumference. Each rotary table 30 is rotatably supported around its own vertical axis by a slide bearing 31 and a rolling bearing 32, respectively, and the slide bearing 31 supports a cylindrical bracket 33 surrounding the slide bearing 31 and a cylindrical bracket 33 that connects the bracket 33 to the rotary table 29. The rolling bearing 32 is supported by a fixing screw 34, and the rolling bearing 32 is connected to the drive shaft 28.
A ring-shaped support plate 35 centered on the rotary table 30 is supported by a connecting member (not shown) that fixes the support plate 35 to the rotary table 29 at an intermediate position of each rotary table 30 . An elevating rod 36 is provided on the shaft portion of the rotary table 30 so as to be able to rise and fall freely, and the upper end of this elevating rod has a conical shape that substantially matches the inner diameter of the cylindrical portion 6 of the spout B to center the spout B. A centering member 37 is provided.

The lower end of the lifting rod 36 penetrates the shaft of the rotary table 30 and projects downward, and a cam follower 39 is rotatably supported on a horizontal bracket 38 fixed to this projecting end.
Further, a bracket 3 is provided on the lower surface of the ring-shaped support plate 35.
A rotation prevention member 40 is provided to support the lifting rod 8 from both sides thereof so as to be able to move up and down, and to prevent the lifting rod 36 from rotating. The lifting rod 36 and the centering member 37 are normally located at the lower end position due to their own weight, and at this time, the upper surface of the centering member 37 and the upper surface of the rotary table 30 substantially coincide with the upper surface of the rotary table 29. There is. Then, in the middle of the movement trajectory of the cam follower 39, that is, the chute 23
A cam plate 41 that lifts the cam follower 39 and therefore the centering member 37 via the bracket 38 and the lifting rod 36 is attached to the machine frame 27 near the tip of the machine frame 27.
It is set up in The chute 23 has its tip at a point on the rotation trajectory of the centering member 37 and extends upward in the tangential direction from there (FIG. 8), while supporting both sides of the adhesive part 7 of the spout B. The plug B is continuously supplied to the tip of the chute 23 by its own weight. This tip part is provided with an engaging claw made of a spring (not shown), and the plug B engages with the engaging claw at the tip of the chute 23 and stops.
It will not fall off due to its own weight. When the centering member 37 approaches the tip of the chute 23 as the rotary table 29 rotates, it is raised by the cam of the cam plate 41, and as shown in FIG.
It is in a state where it can engage with the spout B which is stopped at the tip. Then, when the centering member 37 engages with the spout B,
The spout B is pulled out from the chute 23 against the engaging claw made of the spring, and the spout B is placed on the rotary table 30, and at the same time, the spout B is centered due to its conical shape. When the centering member 37 pulls out the plug B, the following plug B advances due to its own weight and is stopped by the engaging claw, so that it can be pulled out by the next centering member 37. The spout B is pulled out from the chute 23 by the centering member 37 and placed on the rotary table 30.
is then pressed onto the rotary table 30 by the pressing member 42.

This pressing member 42 is arranged directly above each of the four rotary tables 30, and is provided so as to be able to rise and fall with respect to the elevating frame 43. A conical guide hole 44 is formed in the lower end surface of the pressing member 42, and when the pressing member 42 presses the spout B, it cooperates with the centering member 37 to ensure centering of the spout B. ing. A retaining member 45 is attached to the upper end of each pressing member 42, and a spring 46 is elastically loaded between the pressing member 42 and the lifting frame 43 to urge the pressing member 42 downward. There is. The lifting frame 43 can be moved up and down along two parallel guide rods 47 and 48, respectively.
(Fig. 6), and these lifting frame bodies 43 and guide rods 47.
, 48, and a spring 50 between the disk 49 and the disk 49 supporting the
is stretched to urge the lifting frame 43 upward.

A cam follower 51 is rotatably supported on each elevating frame 43, and the spring 50 brings the cam follower 51 into elastic contact with a cam member 52 fixed to the machine frame 27 above the movement trajectory of the cam follower 51. The elevating frame 43 is located at a raised position following the cam curve of the cam member 52 in order to avoid interference with the tip of the chute 23 when passing therethrough. When the tip passes the tip of the chute 23 and there is no possibility of interference therewith, it is lowered by the cam member 52 against the spring 50.
Then, as the elevating frame 43 descends, the pressing member 42 is also lowered integrally, and comes into contact with the upper end of the spout B drawn out from the chute 23 onto the rotary table 30. Lifting frame body 4
3, even when the pressing member 42 comes into contact with the spout B, it is further lowered by the cam member 52 by a predetermined weight, so that the spout B
is held between the rotating table 30 and the pressing member 42 by the elastic force of the spring 46. At this time, as described above, the centering of the spout B is performed by the guide hole 44 of the pressing member 42 and the centering member 37. When centering is performed in this way, the centering member 37 is moved to the rotating base 3 by the cam plate 41 and its own weight.
0 and the upper surface of the rotary table 29 substantially on the same plane. Next, the Joki spout B is rotated as the rotary base 30 rotates while being held between the rotary base 30 and the pressing member 42 .

In order to rotate the rotary table 30, a friction disk 53 is integrally attached to the rotary table 30, while a friction disk 53 is attached to the machine frame 27 at a predetermined rotation angle around the drive shaft 28, as shown in FIG. A friction cam plate 54 is attached that extends across and contacts the outer periphery of the friction disk 53. In the illustrated embodiment, the cam plate 54 is provided over a rotation range of over 180 degrees, so that the friction disk 53 and the rotary table 30 can be rotated approximately two times in relation to the diameter of the friction disk 53. It's summery. On the other hand, at the same time as the spout Bb is rotated, the engaging claw 55 is elastically engaged with the outer periphery of the adhesive part 7 of the spout B, and this engaging claw 55 is engaged when the spout B is oriented in a predetermined direction. It engages with the protrusion 7a of the adhesive part 7 to prevent further rotation of the spout B, thereby positioning the spout B in the rotational direction.

A total of four engaging claws 55 are rotatably supported on the rotary table 29 by shafts 56 at positions inside the respective rotary tables 30 . Binion 57 is attached to the lower end of each shaft 56.
A sector gear 58 is engaged with this pinion 57, as shown in FIG. 2 mentioned above
Among the guide rods 47 and 48 that are parallel to each other, the lower end of one of the guide rods 48 passes through the rotary table 29 and projects downward, and the sector gear 58 is attached to this projecting end.
is rotatably supported. A cam follower 59 is rotatably provided on the lower end surface of each sector gear 58, and each cam follower 59 is mounted on the cam surface of a cam plate 60 which is superimposed on the upper surface of the friction cam plate 54 and fixed to the machine frame 27. are in elastic contact with each other by a spring 61. Although only one spring 61 is shown in FIG. 5, it is tensioned between each sector gear 58 and the rotary table 29, and its tensile force causes the cam follower to
9 is brought into elastic contact with the cam surface of the cam plate 60. The sector gear 58 that pivotally supports the cam follower 50 is swung around the guide rod 48 in accordance with the shape of the cam plate 60. When the sector gear 58 is swung, the pinion 57 and shaft 56 that are meshed with the sector gear 58 are swung around the guide rod 48. The engaging pawl 55 is swung through it.

This engaging claw 55 is located at a position away from the rotary table 30 to avoid interfering with the tip of the chute 23 when passing therethrough. When the plug B passes through the tip of the chute 23 and is held between the rotating table 30 and the pressing member 42 by the force of the spring 46, the engaging claw 55 is moved by the cam plate 60 and the spring 61. It comes into elastic contact with the adhesive part 7 of the spout B. At almost the same time, the outer periphery of the friction disk 53, which is integrated with the rotary table 30, comes into contact with the friction cam plate 54, and due to the frictional force between the two, the friction disk 53 is The plug B and the pressing member 42 are rotated together. Particularly, as shown in FIG. 9C, the contact portion of the engaging claw 55 with the plug B has a rectangular plate-like portion with one protrusion 7a of the adhesive portion 7 and an arcuate portion continuous thereto. An engagement recess 62 is formed that matches the outer circumferential shape, and the distal end side of the engagement recess 62 becomes a stopper portion 62a that comes into contact with one of the protrusions 7a to stop the rotation of the spout B. Also, the end portion is the other protrusion 7a.
' is a relief portion 62b for preventing the stopper portion 62a from engaging with the stopper portion 62a.

That is, as shown in FIG. 9a, when the spout B is rotated and the other protrusion 7a' comes close to the stopper part 62a, the one protrusion 7a mentioned above is brought into contact with the relief part 62b. Then, the engaging pawl 55 is rotated clockwise in FIG. 9a to prevent the other protrusion 7a' from engaging with the stopper portion 62a. Then, each protrusion 7a', 7a passes over the stopper part 62a and the relief part 62b (FIG. 9b), and when the spout B is further rotated, one of the protrusions 7a comes into contact with the stopper part 62a. , further rotation of the spout B is prevented. Such engagement between the protrusion 7a and the stopper portion 62a, ie, positioning in the direction of the spout B, is performed while the spout B rotates at least once.
In the illustrated embodiment, both protrusions 7a and 7a' of the spout B are aligned so as to face outward in the radial direction of the rotary table 29. Incidentally, during the integral rotation of the turntable 30 and the spout B, the spout B is forcibly prevented from rotating by the engaging claw 55, but the spout B is Since it is only pressed against the rotary table 30 by the spout 46, a slip easily occurs between the spout B and the rotary table 30, and only the rotary table 30 side rotates. The spout B whose direction has been positioned as described above is transferred about 3/4 rotation from the tip of the chute 23, and then delivered to the next spout conveying disk 25 described above.

As shown in FIGS. 3, 5, and 10, this disk 25
Notches 63 are formed at five equally spaced locations on the outer periphery of the rotary table 29 to receive a pair of positioned protrusions 7a and 7a' directed outward from the rotary table 29. A guide is provided on both sides of the lid member 4 of the spout B between the spout delivery position from the rotary table 29 to the disc 25 and the spout delivery position from this disc 25 to the next disc 26. A pair of guides 64
, 65 are provided, and a delivery plate 66 for supporting the bottom surface of the spout B is provided between the two discs 25 and 26 below the guides 64 and 65. When the spout B, which has been positioned on the rotary table 30, approaches the plug delivery position to the disc 25, the friction disk 53 and the friction cam 54 have already come out of contact with each other, and the rotary table 30 The rotation thereof is stopped, and the engaging claw 55 is separated from the outer periphery of the adhesive portion 7 of the spout B by the cam plate 60.

In addition, since this engaging claw 55 is provided at a lower position than the pair of guides 64 and 65 that guide both sides of the lid member 4, it does not interfere with these guides 64 and 65, and the tip of the chute 23 mentioned above It is smoothly retreated to a position where it does not interfere with the Immediately after the spout B is disengaged from the engaging claw 55, it is engaged with the notch of the disk 25 to prevent free rotation, and at the same time, the elevating frame 43 is moved to the cam member. 5
2 and spring 50 to release the pressure on the plug B by the pressing member 42. After this, the pressing member 42
is raised to a raised position where it does not interfere with the tip of the chute 23. On the other hand, the spout B engaged with the notch 63 of the disc 25
is guided between a pair of guides 64 and 65, and delivered from the rotary table 30 to the next spout conveying disk 26 via the rotary table 29 and the delivery plate 66.

This disc 26 is provided with a plurality of plug receiving members 67 at equally spaced positions on the upper surface of its outer periphery. Each spout receiving member 67 has a first
As shown in FIG. 1, it is attached to the upper surface of the disk 26 by a pair of pins 68 so as to be able to rise and fall freely, and is normally held in the raised position by a spring 69. Each of the spout receiving members 67 is provided with an engagement hole 70 having the same shape as the adhesive part 7 of the spout B.
The adhesive portions 7 are oriented in such a way that the adhesive portions 7 can be received when both a' are facing outward from the disk 26. A support base 71 is attached to the disc 26, which slides relatively within the engagement hole 70 as the spout receiving member 67 moves up and down. The surface is configured to substantially conform to the surface when in position. Furthermore, a cam follower 72 is attached to the surface side of each spout receiving member 67, and a cam member is attached to the fixed frame 73 to engage with the cam follower 72 and lower the spout receiving member 67 against the spring 69. 74 is installed. This cam member 74 is placed at a spout delivery position P (10th
(see figure). The spout receiving member 67
is provided so that its upper surface is equal to the upper surface of the delivery plate 66 when it is at its raised end position, and therefore, the notch 63 and the pair of guides 64 and 65 allow the top surface of the delivery plate 66 to be The spout B slides on the upper surface of the spout receiving member 67 and falls into the engagement hole 70.

In this state, the spout B cannot freely rotate and is transported by the disc 26 with the pair of protrusions 7a and 7a' facing outward. When the spout B approaches the delivery position P to the next rotating body 22, the spout receiving member 67 is lowered by the cam member 74, and the top surface of the support base 71 that supports the spout B and the spout receiving member 67 are lowered by the cam member 74. becomes equal to the top surface of As a result, the spout holder of the rotating body 22, which will be described later, is mounted on the support base 7.
It can be carried out smoothly by grasping the spout B on top of 1. In addition, as shown in FIG.
The disc 26 for supplying the paper container A into the rotating body 22 is provided integrally with the star wheel 19 on the top of the star wheel 19 for supplying the paper container A into the rotating body 22. By matching the number and vertical position of the pockets 19 and 20, the paper container A and the spout B above the container can be fed into the rotating body 22 substantially at the same time.

FIG. 12 shows a cross-sectional view of the rotating body 22 taken along the line in FIG. ,8
The rotary disks 81, 82, 83 are interconnected and integrally constructed.

As can be understood from FIGS. 3 and 12, a total of nine paper container holders 84 are provided at equal intervals on the outer periphery of the lower rotary disk 81. On the other hand, the upper two discs 82, 8
3 is provided with the above-mentioned spout holder 85 which can be raised and lowered directly above each paper container holder 84, and furthermore, a heater 86 is installed at the lower end at an intermediate position between the adjacent spout holders 85 in the circumferential direction. An operating rod 87 is provided to be able to move up and down and rotate. After the paper container holder 84 receives the paper container A from the star wheel 19 in the vertical state,
This is held with a holding claw so that it does not fall off, and then the paper container A is tilted so that the sloped surface 1 on which the opening 2 is formed is in a horizontal state.

The spout holder 85 receives the spout B from the disc 26 provided on the top of the star wheel 19 at the spout delivery position P. This plug B is in a horizontal state and is inclined, and is located directly above the opening 2 of the slope 1. The heater 86 is provided at a position eccentric from the center of rotation of the operating rod 87 by an arm 88, and when the spout B and the opening 2 of the paper container A face each other in the vertical position, the heater 86 will rotate due to the rotation of the operating rod 87. is inserted between the spout B and the paper container A, and then the distance between the inclined surface 1 of the paper container A and the bottom surface of the heater 86, and the distance between the top surface of the heater 86 and the adhesive part 7 of the spout B is determined. are respectively narrowed, and the inclined surface 1 and adhesive portion 7 are heated by the heater 86, respectively. After the heating by the heater 86 is completed, the above-mentioned intervals are widened, and then the heater 86
is pulled out from between the spout B and the paper container A, and then the spout holder 85 is lowered and the adhesive part 7 of the spout B is attached to the paper container A.
is pressed against the inclined surface 1 of.

When the spout B is thus adhered to the paper container A, the spout holder 85 releases the spout B and rises, while the paper container holder 84
returns to the vertical position and releases the grip of the paper container A by the claws. The paper container A is then discharged from the rotating body 22 to the outside by a discharge side star wheel 89 configured similarly to the supply side star wheel 19, and is transferred to the next process by a conveyor 90. 13 to 17 show the specific structure of the paper container holder 84.

As can be understood from the plan view of FIG. 15, a generally trapezoidal notch 91 is formed on the outer periphery of the rotating disk 81, and a pair of brackets 9 are provided on both sides of the notch 91 in the circumferential direction.
2 is fixed. A main body 93 having a U-shaped cross section is swingably supported between the pair of brackets 92 by a pin 94. Notches 95 are formed at both corners of the main body 93 to avoid interference with the trapezoidal notches 91. Main body 93 above
A plate 96 is fixed to the lower end surface of the plate 96.
A plate 98 and a support plate 99 for the paper container A are fixed to the lower part of the paper container A at a predetermined distance by a spacer 97.

The support plate 99 of the paper container A has a main body 93 with a U-shaped cross section.
The main body 93 holds the bottom of the paper container A inserted into the main body 93. On the other hand, two plates 96 above this support plate 99
, 98 have cutouts 100, 101 that approximately match the inner surface shape of the main body 93 so as not to interfere with the paper container A inserted into the main body 93. At the center of the back of the main body 93 is a cylindrical shaft 1 arranged vertically.
02 is rotatably supported, and a shaft 103 is further rotatably fitted into this cylindrical shaft 102.

The upper end of the cylindrical shaft 102 projects from the upper surface of the main body 93, and the lower end from the lower surface of the plate 96, and L-shaped arms 104 and 105 are attached to each projecting end in the same phase.
Further, the upper and lower ends of the shaft 103 respectively protrude from the end of the cylindrical shaft 102, and the L-shaped arm 104,
105 is an L-shaped arm 106, 107 formed symmetrically.
is installed. Therefore, the arms 104 and 105 rotate integrally through the cylindrical shaft 102, and the arms 106 and 107 rotate integrally through the shaft 103, and the upper arms 104 and 10
6 and the lower arms 105 and 107 each form a pair to support the three outer peripheral surfaces of the paper container A at the upper and lower portions. At the tip of each arm 104 to 107, there is a holding claw 1 that holds the other outer peripheral surface of the paper container A.
04a, 105a, 106a, and 107a, respectively. As shown in FIGS. 14 and 16, a pin 108 is vertically attached to each corner of the lower pair of arms 105 and 107, and the upper end of each pin and the plate 96
A tension spring 110 is provided between each pin 109 attached to the lower surface of the tip portions on both sides.

As a result, the arm 105 and the arm 104, which is integrated with the arm 105 through the cylindrical shaft 102, are urged counterclockwise as the center of rotation of the cylindrical shaft 102 in FIG. The arm 106 of is energized clockwise about the center of rotation of the shaft 103 in FIG.
Therefore, the arms 104 to 107 and the holding claws 104a, 1
07a is designed such that the paper container A can be held therein in a normal state. On the other hand, the lower end of the pin 108 provided on the pair of lower arms 105, 107 is attached to a plate 98 and a support plate 99 to avoid interference therewith.
The rollers 112 freely pass through holes 111 formed in the hole 111 and protrude downward, and rollers 112 are rotatably supported in the downward protrusions. As particularly shown in FIG. 17, each roller 112 is engaged in an elongated hole 114 formed on both sides of a single movable plate 113, and this movable plate 113 and an integral rectangular slider 115 are The arms 104 to 107 and the holding claws 104a to 107 move forward and backward in a direction perpendicular to the straight line connecting both rollers 112.
A is rotated in the opposite direction to the spring 110 to release the paper container A from being held by them. Guides 116 that guide both sides of the slider 115 are fixed to the bottom surface of the support plate 99, and each guide 116 is formed with a groove 117 to avoid interference with the movable plate 113. Further, a plate 118 that supports the lower surface of the slider 115 is fixed to the lower surface of the pair of guides 116, and a long hole 119 is formed at a predetermined position in this plate 118 along the operating direction of the slider 115. Insert the pin 120 into this long hole 1.
19, and a cam follower 121 is provided at the projecting end. Furthermore, a stopper bolt 123 is provided on the plate 122 provided at the front end of the guide 116 and the plate 118.
By adjusting the amount by which the slider 115 protrudes toward the slider 115 side, the position at which the slider 115 comes into contact with the stopper bolt 123 and stops, that is, the position at which the paper container A is gripped by the arms 104 to 107 can be regulated. There is.

Further, a pair of brackets 124 are integrally formed on the back surface of the main body 93, and a pin 125 for tilting the main body 93 about the pin 94 is provided horizontally between the brackets 124. A pair of rods 127 (see FIG. 16) are provided on the back of the main body 93 on the rotary disk 81 and a ring-shaped rotary plate 126 provided integrally therewith below the disk. A connecting member 128 is fixed to the upper end of the rod 127. This connecting member 128 has a horizontal lateral groove 129 on the end face on the main body 93 side, and the pin 125 of the main body 93 is engaged in this lateral groove 129.
A tension spring 131 is stretched between the connecting member 128 and the rotary plate 126 through a hole 130 protruding from the rotary disk 81, and as shown by the imaginary line in FIG. 128 is in contact with the rotating disk 81. In this state, the pin 125 engaged with the connecting member 128
As the main body 93 is also lowered, the main body 93 is rotated around a pin 94 which is pivotally supported on the rotating disk 81, and the inclined surface 1 on the side having the opening 2 of the paper container A held therein is brought into a horizontal state. do. At this time, in design, both inclined surfaces 1 of paper container A
, 1 and the axis X that is perpendicular to the inclined surface 1 and passes through the center of the opening 2 is Y,
It is preferable that the pin 94, which is the center of rotation of No. 3, be located on a horizontal line passing through the intersection Y and within the vertical plane v. A support plate 132 is attached between the lower ends of the rods 127, and a cam follower 133 is provided at the center of the support plate 132. As is clear from the above explanation, the reason why the main body 93 of the container holder 84 is in the vertical state is because the attachment of the spout B to the paper container A has been completed and the paper container A is in the discharge side star wheel 89. This is the rotation range from a position close to the supply side star wheel 19 until the new paper container A is completely received from the supply side star wheel 19, and the arms 104 to 107 and the holding claws 104a to 107a are in the released state in the same range. be. For this reason, the cam follower 1 shown in FIG.
A cam member 134 engages with the cam follower 121 to make the main body 93 stand upright, and a cam member 134 engages with the cam follower 121 to make the main body 93 stand upright.
The cam member 135 for opening 04 to 107 is provided only in such a range. To explain this in more detail, both cam followers 133 and 121 are connected to the cam member 134.
.
a to 107a grip the paper container A by the tensile force of the spring 110.

In this state, the paper container holder 84 is attached to the discharge side star wheel 8.
9, the cam follower 133 first engages with the cam member 134 and raises the rod 127 and the connecting member 128 by a predetermined amount against the spring 131. This causes the pin 125 to engage with the connecting member 128.
is raised to rotate the main body 93 into a vertical position. At this time, the Asiast bolt 1 provided on the rotating plate 126
36 is adjusted so that it abuts against the back surface of a plate 98 that is integral with the main body 93 when the main body 93 is in the vertical state. When the main body 93 is in the vertical state in this way, the cam follower 121 then engages with the cam member 135 provided on the movement trajectory in this state,
The slider 115 and the movable plate 113 are connected to the rotating disk 8
1 radially inward.

As a result, the arms 104 to 107 and the holding claws 104a to 1
07a is released, and the paper container A with the spout B attached is discharged onto the conveyor 90 by the discharge side star wheel 89. The paper container holder 84, which has become empty after the paper container A has been discharged, approaches the supply side star wheel 19 in this state, and a new paper container A is delivered from this star wheel 19. When the paper container A is carried into the paper container holder 84, at the same time, the cam member 135
The cam follower 121 is moved radially outward of the rotating disk 81 by the cam shape and the tension spring 110.
The arms 104 to 107 and the holding claws 104a to 107a grip the paper container A by the tensile force of the spring 110. arm 1
When 04 to 107 grip a new paper container A, the cam follower 121 is disengaged from the cam member 135.

As the rotation further progresses, the cam member 134 lowers the cam follower 133, the rods 127 and 6, and the connecting member 128, tilts the main body 93, and opens the opening of the paper container A.
The inclined surface 1 formed with the slope 1 is made to coincide with the horizontal plane.

Thereafter, the paper container holder 84 and the paper container A are rotated and transferred in this state until they are raised to a vertical state close to the discharge side star wheel 89 described above. Next, the spout holder 85 is provided with a vertically disposed hollow lifting rod 140, and this lifting rod 140 is provided on the upper two rotating disks 82 and 83 so as to be able to rise and fall freely.

As shown in FIG. 18, a bracket 141 is fixed to the lifting rod 140, and a cam follower 142 is attached to the bracket 141. Guide rod 1 shown in Figure 18
43 is arranged parallel to the lifting rod 140 and fixed to two rotary discs 82 and 83, and a pair of parallel protrusions 144 protruding from the bracket 141 are connected to the guide rod 14.
3 prevents the bracket 141 from rotating about the lifting rod 140. The cam follower 142 is engaged with a cam groove 146 of a cylindrical cam member 145 that is disposed between the two rotating disks 82 and 83 and connected and fixed to the fixed shaft 80. As shown in FIG. 19, the plug holding portion at the lower end of the lifting rod 140 includes a holding member 147 whose upper portion is slidably fitted into the shaft hole of the lifting rod 140.
A compression spring 148 is elastically mounted between 47 and the lifting rod 140.

A cylindrical cover member 149 that surrounds the spring 148 has a lower end screwed onto the holding member 147 and an upper end attached to the lifting rod 1.
40 so as to be able to rise and fall freely, and a stopper ring 150 provided on the elevating rod 140 prevents it from coming off downward. A hole 151 for receiving the lid member 4 of the spout B is formed in the lower end surface of the holding member 147, and as shown in FIG. Annular groove 1 communicating with hole 151
52 is formed. A coil spring 153 whose both ends are connected to form an endless shape is engaged in this annular groove 152. This coil spring 153 is normally stretched in a straight line between the connecting parts 147a, and a part of it is inserted into the hole.
51 (dotted line in FIG. 20), and when the cover member 4 of the spout B is inserted into the hole 151, a portion of the coil spring 153 that had been protruding into the hole 151 is inserted into the cover member 4.
The spout B is held in elastic contact with the outer circumferential surface of the spout B.
A hole 154 is formed in the shaft portion of the holding member 147, and a fixing rod 155 is fitted into the hole 154 so as to be relatively movable up and down.

The upper end of this fixing rod 155 passes through the elevator rod 140 and is fixed to a rotary plate 156 that is integral with the rotary disk 83, as shown in FIG. The height of the lower end surface of the fixed rod 155 is such that the spout holder 85 is
It is set so that it protrudes relatively into the hole 151 when it reaches the maximum height position between 9 and 9, so that if the stopper B remains, it can be forcibly dropped. There is. While the elevating rod 140 of the plug holder 85 only moves up and down, the operating rod 87 that supports the heater 86 is given an elevating movement and a rotational movement.

In FIG. 12, the operating rod 8 is used to provide lifting motion.
7 is provided with a bracket 161, and this bracket 1
A cam follower 162 is provided at 61. The configuration around this bracket 161 is basically the same as that of the lifting rod 140.
The bracket 161 is also prevented from freely rotating by the guide rod, and the cam follower 162 is engaged with the cam member 163. However, since the operating rod 87 must be rotatable as described above, the operating rod 87 is rotatable relative to the bracket 161. For this purpose, for example, an annular groove may be formed on the outer periphery of the operating rod 87, and a pin or a cam follower provided on the bracket 161 may be engaged in the annular groove. The center part of a substantially L-shaped lever 164 is attached to the upper end of the operating rod 87, and a cam follower 165 is attached to the upper surface of one end of this lever 164.
However, a pin 166 is provided on the lower surface of the other end.

A tension spring 168 is provided between this pin 166 and a pin 167 erected on the upper surface of the rotating disk 83, and this spring causes the cam follower 165 to
I am making bullet contact with 9. This cam member 169 is connected to the rotating body 22
It goes without saying that it is supported by a fixed frame 170 provided externally, and that its cam surface is designed to allow the operating rod 87 to move up and down. The heater 86 attached to the lower end of the operating rod 87 via an arm 88 has a rectangular main body 171 made of insulating material, as seen in FIGS. 19 and 21, and the tip of the arm 88 are stacked on one side of the upper surface of this main body 171 and are interconnected by bolts (not shown).

A heating element 172 for heating the adhesive portion 7 of the spout B is attached to the other side of the upper surface of the main body 171 with an insulator 173 interposed therebetween. This heating element 172 is formed by punching out a flat plate-like electric resistor into a predetermined shape, and as shown in FIG. forming a connecting portion 175 on both sides of this
It is said that At the center of the ring-shaped portion 174, there is provided a stepped cylindrical distance maintaining member 176 that abuts the spout B and maintains a constant distance between the adhesive portion 7 and the heating element 172. On the lower surface of the main body 171 is a heating element 177 for heating the area around the opening 2 formed in the inclined surface 1 of the paper container A.
is attached via an insulator 178. This heating element 1
77 has a ring-shaped portion or a disk-shaped portion 179 in its center that is approximately the same size as the ring-shaped portion 174, and connection portions 180 on both sides of this disk-shaped portion 179, and The plate-like portion 179 projects downward relative to the connecting portion 180. A pair of heating elements 172 and 177 disposed on the upper and lower surfaces of the main body 171 are connected to the two bolts 181 and 177 on both sides, with the axes of the ring-shaped portion 174 and the disk-shaped portion 179 aligned. This is fixed to the main body 171 by being tightened together by a nut portion 182 that is screwed together.

A cylindrical support member 183 is interposed between the disc-shaped portion 179 of the lower heating element 177 and the main body 171, and the support member 183 has a cylindrical shape that matches the outer circumferential shape of the disc-shaped portion. A threaded portion 184 integral with the spacing member 176 is screwed onto the shaft portion of the spacing member 183 to fix the supporting member 183 and the spacing member 176 to the main body 171 at the same time. Further, each of the nut members 182 is formed into a rectangular parallelepiped shape, with its lower surface serving as a contact surface 185 with the inclined surface 1 of the paper container A, and between this contact surface 185 and the lower surface of the disc-shaped portion 179 of the heating element 177. This allows for a predetermined interval between the two. The two bolts 181 are used as a conductive path to a heating element 177 below, which is connected to both bolts 181 and to the top of each bore.
6 to the power supply.

On the other hand, the upper heating element 172 is insulated from the bolt 181 by an insulating cylinder 187 fitted around the outer circumference of the bolt 181, and is insulated from the bolt 181 by a conductor 188 and a conductive wire 189.
Connected to power via. This conductive wire 189 is connected to a plurality of insulating materials 19 fitted around the outer periphery of the insulating cylinder 187.
The conductor 188 is disposed at an intermediate position of 0 and is insulated from the conductive wire 186, and the conductor 188 electrically connects the conductive wire 189 and the heating element 172. It goes without saying that each pair of conductive wires 186 and 189 are connected to the power source via a conventionally known rotary type connection mechanism so that they will not be twisted by the rotation of the rotating body 82. Further, if necessary, a cooling water passage may be provided in the main body 171, the nut member 182, etc. to cool them. As described above, when the paper container holder 84 receives the paper container A from the supply star wheel 19, it grips it and tilts the paper container A, so that the inclined surface 1 becomes a horizontal surface. The spout holder 85 located directly above the opening 2 formed in the inclined surface 1 has already held the spout B by this time. That is, when the spout holder 85 approaches the aforementioned spout delivery position P, it is lowered along the trajectory of the cam groove 146 of the cam member 145, and at that position P, it is placed on the support base 71 of the spout conveying disk 26. relatively fit the lid member 4 of the spout B placed in the hole 151 of the holding member 147,
The spout B is held by a coil spring 153 provided on the holding member 147. Just before the spout holder 85 holds the spout B, the spout receiving member 67 supporting the outer periphery of the contact portion 7 of the spout B on the support base 71 is pressed down by the cam member 74 to prevent the contact. Since the support of the outer periphery of the portion 7 is released, the spout holder 85 can smoothly receive the spout B on the support base 71. During this time, the heater 86 is located in a retracted position that has been moved inward in the radial direction of the rotating body 22 from the axis of the plug holder 85 (see FIG. 3). When the paper container A is tilted so that the opening 2 and the spout B face each other with a predetermined interval, the heater 86 is operated by the operating rod 87 by the cam member 169.
As the arm 88 rotates, it rotates from the retracted position and is inserted between the opening 2 and the plug B.

Next, the operating rod 87 and the arm 8 by the cam member 163
8, the heater 86 is lowered, and as shown in FIG.
The disc-shaped portion 179 of the lower heating element 177 and the heated portion of the paper container A face each other at an appropriate interval. Simultaneously with the lowering of the heater 86, the plug holder 85 is also lowered, and the lowering is stopped in a state where the gap retaining member 176 of the heater 86, which has stopped lowering, is brought into contact with the plug B. As a result, the adhesive portion 7 of the spout B also faces the ring-shaped portion 174 of the upper heating element 172 at a predetermined distance. The upper and lower heating elements 172, 177 are constantly connected to a power source while the rotating body 22 is in operation, or are connected to a power source and become red-hot when activated from the retracted position by a detection switch (not shown).

As a result, the paper container A and the spout B are usually heated at different optimal temperatures. Next, the spout holder 85
and the heater 86 are raised together, and the paper container A and the heater 8
6, the heater 86, and the spout B are separated from each other, the heater 86 is moved upwardly and retreated from between the paper container A and the spout B, and is finally returned to the aforementioned retreated position to start the next new one. It waits in that position until the paper container is supplied. On the other hand, the spout holder 85 is lowered again immediately after the heater 86 is retreated, and the contact portion 7 of the spout B is brought into pressure contact with a predetermined position on the inclined surface 1 of the paper container A, thereby adhering the two. Thereafter, the spout holder 85 is raised again, and the spout B is relatively pulled out from the hole 151 of the holding member 147 against the spring force of the coil spring 153 due to the adhesive force with the paper container A. Then, the empty spout holder 85 has both star wheels 19,
After reaching the maximum height position between 89 and 89, it is lowered to hold a new plug B. In its maximum height position, the fixing rod 155 protrudes into the hole 151 as described above, and in the unlikely event that the paper container A is not present, the heating elements 172, 17
When the spout B remains due to reasons such as not being energized to the cap 7, it is forcibly dropped from the hole 151 and collected, thereby making it possible to grasp the next new spout B. The paper container A to which the spout B has been attached in this manner is, as described above, stood upright and released from the grip, and then is discharged onto the conveyor 90 by the discharge side star wheel 89. The spout attachment device of the illustrated embodiment is preferably designed using the paper container A and the spout B shown in FIG. 1, and the design can be changed as appropriate based on the paper container and spout to be used. It can be performed.

For example, if the notch 5 of the spout B is omitted, it is naturally unnecessary to position the spout B in the rotational direction, and therefore the positioning mechanism 24 can be omitted. Furthermore, if the paper container does not have the inclined surface 1 and its upper surface is finished flat, there is no need for a mechanism for inclining at least one of the constituent parts of the paper container holder 84. In such a case, the arms 104 to 1 can be adjusted as necessary.
07 etc. can also be omitted. On the other hand, even if the paper container A has the inclined surface 1, the above-mentioned tilting mechanism is omitted, and instead, the spout holder 84 is arranged perpendicular to the inclined surface 1 and along the axis of the opening 2. It may be provided on the rotating body 22 so that it can move forward and backward on a line passing through the core. Further, although the heating devices in the above embodiments are all based on heating bodies, high frequency heating or ultrasonic heating may also be used depending on the properties of the resin coating applied to the paper container and the synthetic resin forming the spout. . A rotating body that rotates around a single axis, a paper container holder provided along the outer periphery of the rotating body to hold paper containers, and a paper container holder that receives paper containers from a paper container transport path outside the rotating body. A paper container supply means such as a star wheel for sequentially supplying paper containers, a spout holder provided on the rotary body facing each of the paper container holders to hold a spout, and a spout holder attached to the rotary body. A spout supply means that synchronizes with the paper container supply means and supplies the spout received from the external spout supply path, and is movable to a position adjacent to and opposite each of the paper container holders and the spout holder. Each heating element is provided to heat each adhesive part of the paper container and the spout held by these holders, and after these heating devices are evacuated from the opposing position, the two holders are brought close together to heat the paper container and the spout. a press actuating means provided on the rotary body that presses the heated adhesive parts of the rotary body; Sequential discharge to the container discharge route. Since it is characterized by being equipped with a paper container ejecting means such as a tarwheel, the spout can be easily and reliably attached to the paper container, and this can be done by continuous operation of the rotating body. Since this is possible, it is possible to achieve the effect of being able to cope with increased speed.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a paper container and a cap that are bonded together, FIG. 2 is a plan view of the cap, FIG. 3 is a schematic plan view showing an embodiment of the present invention, and FIG. 3 is an enlarged longitudinal sectional view taken along the - line, FIGS. 5, 6 and 7 are cross sectional views taken along the - line, line and - line of FIG. 9A, b, and c are schematic plan views showing different operating states of the main parts of the positioning mechanism shown in FIGS. 4 to 8, and FIG. 30 is an enlarged plan view of the main parts, FIG. 11 is a vertical sectional view taken along the line M-XI in FIG. 10, FIG. 12 is an enlarged longitudinal sectional view taken along the - line in FIG. Fig. 12 is an enlarged view of the main part, Fig. 14 is a front view of Fig. 13, Fig. 15 is a plan view of Fig. 13,
6 and 17 are cross-sectional views taken along the X-XVl line and X-XMI line in FIG. 13, respectively, and FIG. 18 is a cross-sectional view along the
Figure 19 is a cross-sectional view taken along the line XX-X in the figure, Figure 19 is a longitudinal cross-sectional view showing an enlarged view of the state in which the paper container and the spout are heated by the heater, and Figure 20 is a cross-sectional view taken along the line XX-XX in Figure 19. Cross section, 2nd
FIG. 1 is a plan view of the heater. A: paper container, 1: inclined surface, 2: opening, B: spout, 3: spout member, 4: lid member, 7: adhesive part, 19, 89: star wheel, 22: rotating body, 23: chute , 24: positioning mechanism, 25, 26: spout conveying disk, 84: paper container holding screw 85: spout holding screw 86: heater, 142: cam follower, 145: cam member, 172, 177: heating element.

Claims (1)

[Claims] 1. A rotating body that is rotationally driven around a single axis, a plurality of paper container holders provided along the outer periphery of this rotating body to hold paper containers, and a paper container holder that receives paper containers from a paper container transport path outside the rotating body. A paper container supplying means such as a star wheel that sequentially supplies the paper containers, a spout holder provided on the rotating body to face each of the paper container holders and holding a spout, and a spout holder attached to the rotary body. A spout supply means that synchronizes with the paper container supply means and supplies the spout received from the external spout supply path, and is movable to a position adjacent to and opposite each of the paper container holders and the spout holder. Each heating element is provided to heat each adhesive part of the paper container and the spout held by these holders, and after these heating devices are evacuated from the opposing position, the two holders are brought close together to heat the paper container and the spout. a press actuating means provided on the rotary body that presses the heated adhesive parts of the rotary body; A device for attaching a spout to a paper container, comprising a paper container ejection means such as a star wheel that sequentially ejects the container to a container ejection path.