JP2002355904A - Spout insertion apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a spout insertion apparatus capable of arranging a movable part at the position under a spout to prevent dust or oil drops from falling to a bag to adhere thereto and capable of accurately positioning the bag and the spout at the same time. SOLUTION: A plurality of sets of insertion means, each of which consists of a pair of holding members 19 for positioning both side edges of the bag W to hold the bag W, a bag bottom receiving stand 20 for supporting the lower end of the bag W and suction pads 21 for sucking the mouth of the bag W from both sides to open the same, are arranged on the periphery of an intermittent rotation table 18. The supply of the bag W is received at a stop position or during the movement of the intermittent rotation table 18 and both side edges of the bag W are held by the holding members 19 and the bag receiving stand 20 is raised to raise the mouth of the bag W to the position of the suction pads 21 to open the same by the suction pads 21. Succeedingly, the holding members 19 and the suction pads 21 are raised to a predetermined position at a temporary seal position and the bag W is fitted to the spout S positioned at the predetermined position. At the same time, both of them are temporarily sealed by a temporary seal member 79 and a temporary seal receiving member 85.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a part of an apparatus for manufacturing a bag with a spout in which a spout is attached to a bag mouth.
The present invention relates to a spout insertion device for inserting a spout into a predetermined position in a bag.

[0002]

2. Description of the Related Art As a spout insertion means for inserting a spout into a predetermined position in a bag, for example, Japanese Patent Application Laid-Open No. 11-333950 discloses a spout insertion means.
An apparatus is described in which the spout is inverted and supplied to a holding portion projecting below the outer peripheral end of the main rotor that rotates intermittently, the bag is lowered downward from above, and then the bag mouth is opened and the spout is fitted. ing. However, in this device, the spout supply device is located above the spout held by the holding portion,
Since various devices having movable parts, such as a bag supply device and an opening lowering device, are arranged, there is a problem in that garbage, oil droplets, and the like, which fall from the devices, often adhere to spouts and bags. In addition, since there is no means for accurately positioning the supplied bag in advance at the center of the spout, the position of the bag sucked by the suction cup increases, and when the bag is lowered, the end of the bag is prevented from slipping. There is a risk of getting caught in.

[0003] In Japanese Patent Application Laid-Open No. 11-77860, a bag holding device and an opening device are provided at the outer peripheral end of a continuously rotating rotor, a supplied bag is sucked by the opening device, and a bag mouth is opened. Describes a device for receiving spout supply from a spout supply device installed around a rotor. Also in this device, since the spout supply device having the movable portion is located above the spout and the bag, there is a problem in that falling dust and oil droplets often adhere to the spout and the bag. Further, there is no sufficient disclosure about the vertical and horizontal positioning of the bag with respect to the spout.

In Japanese Patent Application Laid-Open No. Hei 10-202768, a spout clamping device is installed at an outer peripheral end of a continuously rotating upper rotor, a bag opener device is installed at an outer peripheral end of a lower rotor, and bags are supplied to the opener device. In addition, a device is described in which a bag mouth is opened with the opener device, the bag is raised, and the spout is held by a clamp device. However, even with this device, the spout elevating device is disposed above the spout held by the clamp device, and therefore there is a problem that dust and oil droplets falling from the spout often adhere to the spout or the bag. is there. Further, since no means is provided for accurately positioning the supplied bag in advance at the center of the spout, the spout may be shifted from the center of the bag. Further, although the bag is lifted by the opener device, there is no means for directly regulating the rising end of the bag, so that the sealing surfaces of the bag and the spout may be displaced vertically.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and has a movable portion installed at a position as low as possible to prevent falling dust and oil droplets from adhering to a spout or a bag. It is another object of the present invention to provide a spout insertion device capable of accurately positioning a bag and a spout.

[0006]

According to the present invention, there is provided a spout insertion device comprising: a pair of holding members for positioning and holding both side edges of a supplied bag; a bag bottom support for supporting a lower end of the bag; A plurality of sets of insertion means including a pair of suction members that open by sucking the bag mouth from both sides are installed at equal intervals around the intermittently rotating rotor, and furthermore, one or both of the bag bottom receiving table and the suction member. Lifting means for raising and lowering these are installed, and when any of the insertion means stops at the sealing process position, the bag bottom receiving table and / or the suction member included in the insertion means are vertically raised by the lifting means. The opened bag is raised to the upper end of the seal portion of the spout positioned upward. In the case of this spout insertion device, the positioning of the spout is performed by another device. At the same time as the bag is raised to the upper end of the spout seal portion, the bag mouth and the spout are sealed (including the temporary seal), and the sealed bag is delivered to the another device.

Another spout insertion device according to the present invention comprises a pair of holding members for positioning and holding both side edges of a supplied bag, a bag bottom receiving stand for supporting a lower end of the bag, a bag mouth. A plurality of sets of insertion means, each of which includes a pair of suction members that open by sucking the spouts from both sides, are installed at equal intervals around the rotor that rotates intermittently, and the supplied spout is positioned at a predetermined position above each insertion means. A spout holding member that holds vertically at the position is installed, and a lifting means for raising and lowering one or both of the bag bottom receiving table and the suction member is installed, and one of the insertion means is placed at a sealing process position. When stopped or until the sealing process position is reached, the bag bottom cradle and / or
Alternatively, the suction member is vertically raised by the lifting means to raise the opened bag to the upper end of the spout seal portion. When the sealing is performed in a plurality of steps (a plurality of stop positions), the sealing step position means an initial stop position.

In the above two spout insertion devices, it is possible to appropriately set up and down means on both the suction member and the bag bottom receiving stand. Further, an elevating means can be provided on the holding member. In this case, if necessary, the elevating means can be shared with the elevating means of the suction member. These elevating means include, for example, a cam roller installed to elevate each member that can be raised and lowered, and an annular elevating cam installed around the rotor corresponding to the cam roller. When it is necessary to raise or lower each member at a certain stop position (for example, a sealing process position), a split cam which can ascend and descend itself is installed at the stop position as a part of the annular lift cam, and the split cam is air-operated. It is raised and lowered by driving means such as a cylinder. Needless to say, the rolling surfaces of these split cams are flush with the upstream side (the side where the cam roller enters) before the up / down operation, and flush with the downstream side (the side where the cam roller exits) after the up / down operation. Is done. The lifting and lowering of the suction member or the bag bottom receiving stand is not limited to raising the bag to the upper end of the seal portion of the spout.

In the above two spout insertion devices, when the bag is lifted to the upper end of the seal portion of the spout by suction with the suction member, the bag can be lifted with the suction member opened. On the other hand, if the suction member does not rise, the bag is raised by the bag bottom receiving stand. At this time, the suction member needs to be separated from the bag surface after opening the bag mouth. Therefore, in the latter case, it is necessary to separately install a means (for example, an air nozzle that rotates and stops with the rotor and blows air into the bag from above) to maintain the state of being opened by the suction member while the bag rises. Required. In any case, it is desirable to raise the holding member at the same time.

In the spout insertion device, as a specific form of the holding member, the holding member has a substantially V-shape in plan view, has a predetermined length in the vertical direction, and is attached to the tip of each rotating arm to be opposed to each other. Swinging a predetermined range, opening and closing, receiving the bag in an open state, closing and holding both side edges, when the suction member is opened by sucking the bag mouth of the bag from both sides, Reducing the distance between the members by a predetermined distance can be mentioned. Note that as the opening / closing means for opening / closing the holding member, the same cam roller and annular cam (open / close cam) as those for the elevating / lowering means can be used. Further, as the spout holding member for holding the spout, a member for holding the groove between the flange portions of the spout (see the embodiment of the invention), a member for holding the flange portion, or a member for holding the head portion,
Various forms of holding members are conceivable.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an example of a spout insertion device according to the present invention will be specifically described with reference to FIGS. FIG. 1 is a plan view of a packaging machine including a spout insertion device, in which a spout supply device 2, a spout insertion device 3, a primary seal device 4, a secondary seal device 5, a cooling device around a rotary type filling device 1 that rotates intermittently. A sealing device 6, a liquid supply device 7, a mouth cleaning device 8, a capping device 9, a product discharging device 10, and a defective product discharging chute 11 are arranged. Around the rotor of the filling device 1, a fork-shaped spout holding member having a radially outward holding groove for holding a groove between flange portions of the spout S (see FIG. 3).
Are installed at equal intervals, and each time the rotor is stopped, various processes (1) to (12) are sequentially performed.

That is, (1) the supply of the spout S to the spout holding member, (2) the insertion of the spout S by the spout insertion device 3 (the fitting of the bag W to the spout S), and the temporary sealing of the spout S and the bag mouth. (3) Primary seal of spout S and bag mouth, (4) Secondary seal, (5) Cooling seal,
(6) Liquid material filling, (7) Spout mouth cleaning, (8)
Spare, (9) capping spout mouth, (10)
Preliminary, (11) spout is removed from spout holding member and product bag is discharged, and (12) defective bag is discharged here. As shown in FIG. 2, in the spout S, a, b,
Reference numeral c denotes a flange portion, and any one of the groove portions d and e therebetween is held by the spout holding member. These grooves d and e
Are all composed of flat surfaces. f is a seal part.

The spout insertion device 3 rotates intermittently (9 at a time).
(Rotating by 0 degree)
A set of insertion means is provided. The stop position (2-1) where the bag supply step is performed is, for example, described in Japanese Patent Application Laid-Open No. 8-33721.
No. 7, a conveyor magazine type bag supply device 13 is arranged, and the bag W is supplied to the insertion means stopped there. Also, the stop position (2-2)
And the printing device 14 is arranged between the stop position (2-3) and
Printing is performed on the moving bag by, for example, ink jet, and the opening of the bag opening is made by the insertion means between the stop position (2-3) and the stop position (2-4) where the temporary sealing process is performed. At the stop position (2-4), the process of fitting the bag W to the spout W held by the spout holding member of the filling device 1 and performing the temporary sealing process are performed.

Next, the spout insertion device 3 will be specifically described with reference to FIGS. Spout insertion device 3
As shown in FIG. 3, a table rotating shaft 17 is rotatably supported in a support stand 16 erected on a machine base 15,
A rotating table (rotor) 18 is attached to the table rotating shaft 17.
Are fixed, and four sets of insertion means including a pair of holding members 19, a bag bottom receiving base 20, and a pair of suction members (suckers) 21 are arranged at equal intervals. Table rotation axis 1
Reference numeral 7 is intermittently rotated by a drive source (not shown) to stop the insertion means at each of the stop positions (2-1 to 2-4).

As shown in FIG. 5 (a), the holding member 19 is a substantially V-shaped member in plan view composed of an inner claw 19a and an outer claw 19b. Attached to the tips of the holding arms 22 and 23, and swings in a predetermined range to open and close, and receives the bag W in an open state,
Close and hold its side edges. The inner claw 19a has a linear holding surface substantially along the tangent of its rotation locus, the outer claw 19b has a slightly outward holding surface, and a pair is arranged to face each other,
The interval between the inner claws 19a is set smaller than the interval between the outer claws 19b.

The holding arms 22, 23 are connected to each other by a gear 24,
Opening / closing rotation is performed at the same time via 25. In addition, holding arm 2
2 is a bearing 27 (inner ring 27a, outer ring 2
7b), it is rotatably held, and an arm swing fulcrum shaft 28 is fitted into the inner ring 27a. A vertical line is formed on the outer peripheral surface of the arm swinging fulcrum shaft 28, and a vertical groove is formed on the inner peripheral surface of the inner ring 27a to slidably receive the vertical line,
The bearing 27 (and the elevating holder 26) is allowed to move up and down with respect to the arm swing fulcrum shaft 28. On the other hand, holding arm 2
3 is an elevating holder 26 via an arm swing fulcrum shaft 29.
Is rotatable.

An elevating slider 31 is fixed to the inner diameter side of the elevating holder 26 (the center side of the rotary table 18). The elevating slider 31 is attached to an elevating rail 33 installed vertically on a bracket 32 attached to the lower surface of the rotary table 18. Slide along. Further, a cam roller 34 is provided on the inside thereof, and an annular elevating cam corresponding to the cam roller 34 is provided around the rotary table 18. The elevating cam includes a fixed cam 37 (a cam that is annularly continuous except for a later-described divided cam 38) attached to the support stand 16 via attachment members 35 and 36, and a stop position where the temporary sealing process is performed. (2-4) The split cam 38 is sandwiched between the fixed cams 37.
8 can be raised and lowered by a dual air cylinder 39. Needless to say, the cam groove 38a of the split cam 38 is located upstream of the fixed cam 37 (the side where the cam roller 34 enters) before the elevating operation.
The cam groove 37a is set so as to be flush with the cam groove 37a on the downstream side (the side where the cam roller 34 comes out) after the elevating operation. The cam roller 34 rolls in the cam groove 37a of the fixed cam 37 with the movement of the rotary table 18, or the cam roller 34 at the stop position (2-4) moves up and down when the rotary table 18 stops. As a result, the elevating holder 26 (and the holding member 19) moves up and down.

The arm swinging fulcrum shaft 28 is rotatably supported by a bearing 41 near its lower end, and the bearing 41 is mounted on a support plate 42 fixed to the lower end of the bracket 32. A swing arm 43 is fixed to the lower end of the arm swing fulcrum shaft 28, and the swing arm 43 is rotatably supported by a bracket 44 on the lower surface of the support plate 42 via a connecting rod (not shown). (When the cam lever 45 swings up and down, the swing arm 43 swings horizontally accordingly). A cam roller 46 is attached to the other end of the cam lever 45.
Is provided, and an annular opening / closing cam corresponding to the cam roller 46 is provided around the rotary table 18. The opening / closing cam includes a fixed cam 48 (a cam that is annularly continuous except for a later-described divided cam) installed on the machine base 15 via an attachment member 47, and a stop position (2) where the bag supply process is performed. In -1), it is composed of a split cam (not shown) provided between the fixed cams 48, and the split cam can be moved up and down by an air cylinder 49 shown by a virtual line. Fixed cam 4
The relationship between the cam groove 48a of No. 8 and the cam groove of the split cam is the same as that of the lifting cam. The cam roller 46 rolls in the cam groove 48a of the fixed cam 48 with the movement of the rotary table 18, or the cam roller 46 at the stop position (2-1) when the rotary table 18 stops moves up and down the split cam. The swing arm 43
Swings, the arm swing fulcrum shaft 28 rotates, and the holding arms 22 and 23 swing to open and close the holding member 19.

Below the holding member 19, a bag bottom receiving base 20 is located. The bag bottom receiving base 20 has a substantially V-shaped receiving portion in a side view, and is elastically supported by a receiving base holder 51 via a support shaft 52 and a compression spring 53. It is fixed to 54 with a height adjusting screw 55. An elevating slider 56 is fixed to the pedestal mounting plate 54, while the elevating holder 26 is
The lifting rail 58 is vertically fixed to a bracket 57 attached to the bracket, and the lifting slider 56 slides along the lifting rail 58. A cam roller 59 is attached to the lower end of the pedestal attachment plate 54, and an annular elevating cam corresponding to the cam roller 59 around the rotary table 18 (a fixed cam 62 installed on the machine base 15 via an attachment member 61). Only). With the movement of the rotary table 18, the cam roller 59 becomes fixed cam 6.
By rolling on the second rolling surface 62a, the bag bottom receiving base 20 moves up and down.

Above the holding member 19, a pair of suction cups 21 are located. As shown in FIG. 5B, the suction cups 21 are attached to the ends of opening arms 65 and 66 that are horizontally swingable about swinging fulcrum shafts 63 and 64, respectively. It is simultaneously opened and closed via 68. The swing fulcrum shafts 63 and 64 are swingably supported by a mounting base 69 provided at the upper end of the bracket 57.
Moves up and down together with the elevating holder 26 (and the holding member 19). The opening arms 65 and 66 are constantly urged to open by a compression spring 71, and the opening distance thereof is regulated by a stopper 72 mounted on a mounting base 69. On the other hand, between the stop position (2-3) and the stop position (2-4),
An opening / closing cam 73 is provided over a predetermined distance along the outer periphery of the rotary table 18, and a cam roller 74 attached to the opening arm 65 contacts the opening / closing cam 73, and the opening arms 65, 66.
And the suction cup 21 is closed and then opened. Note that a rotary valve that communicates with a vacuum source via a filter, an electromagnetic valve, and the like is provided above the rotation shaft 17.
The suction pipe 21 is connected to each suction cup 21 by a pipe, and the suction and stop timing of each suction cup 21 can be controlled.

As shown in FIG. 3, the rotary filling device 1 has a table rotating shaft 76 rotatably supported in a support stand 75 erected on the machine base 15, and the rotating table (rotor) ) 77 is attached,
Spout holding members 78 are arranged at equal intervals around the periphery. The rotary table 7 of the rotary filling device 1
At the lower part of 7, a part of the temporary sealing device is installed. That is, the rod-shaped temporary sealing member 79 is arranged corresponding to the stop position (2-4) of the spout insertion device 3, and is movable in the radial direction of the rotary table 77 by the air cylinder 81. The temporary sealing member 79 is located immediately below the holding groove of the spout holding member 78 stopped there, and when it advances, its tip abuts on the seal portion f of the spout S held in the holding groove of the spout holding member 78. In addition,
Reference numeral 82 denotes a heater block, and the air cylinder 81 is fixed to the support stand 75 via a mounting member 83.

On the other hand, the other part of the temporary sealing device is installed on the spout insertion device 3 side. That is, a support base 84 is fixed on each mounting base 69, and a rod-shaped temporary seal receiving member 85 is slidably supported by the support base 84. The temporary seal receiving member 85 has a cam roller 86 at the rear end, and a spring. 87
Urged rearward (the rotary table 18 side). Further, a plate-like forward cam 88 is fixed to the rotary table 18 corresponding to each temporary seal receiving member 85. At the stop position (2-4), when the temporary seal receiving member 85 moves up and down as the mounting base 69 moves up and down, the cam roller 86 rolls on the rolling surface 88a of the forward cam 88,
The temporary seal receiving member 85 is advanced and retracted in the radial direction of the turntable 18. When the temporary seal receiving member 85 rises to the highest position (see the phantom lines in FIGS. 3 and 4), the temporary seal receiving member 85 comes to a position directly facing the temporary seal member 79, and the spout S (the bag W is fitted). ) Is received by the temporary seal member 79 that comes into contact with the temporary seal member 79.

Next, one mode of operation of the spout insertion device 3 will be described with reference to FIG. The symbols in parentheses below correspond to FIG. (A to c) At the stop position (2-1), the holding member 19 and the suction cup 21 are at the intermediate position, the bag bottom receiving base 20 is at the lower position, and the holding member 19 is initially open. Bag W there
Is supplied from the bag supply device 13, the air cylinder 49 is actuated immediately and the split cam is raised, whereby the holding member 19 is closed, and both edges of the bag W are positioned and held. (D) During the movement from the stop position (2-1) to the stop position (2-2), the cam roller 59 rolls on the fixed cam 62 and rises, whereby the bag bottom receiving base 20 rises. The bag W is raised, and the bag mouth is positioned between the suction cups 21 and 21.

(Eg) During the stop position (2-2), during the movement from the stop position (2-2) to the stop position (2-3), and at the stop position (2-3), the holding member 19, the suction cup There is no lifting / lowering of the 21 and the bag bottom receiving stand 20 and no opening / closing of the holding member 19.
However, printing is performed on the bag surface by the printing device 14 during the movement. (H) During the movement from the stop position (2-3) to the stop position (2-4), vacuum suction of the suction cup 21 starts and the cam roller 7
4 comes into contact with the opening / closing cam 73 and the suction cup 21 is closed, and then the contact with the opening / closing cam 73 is completed and the suction cup 21 is opened. Thereby, the bag mouth of the bag W is opened. Vacuum suction is continuing.

(I-1) At the stop position (2-4)
The air cylinder 39 is actuated to raise the split cam 38,
Thereby, the holding member 19 and the suction cup 21 are raised, and the opened bag W is fitted to the spout S. Almost at the same time, the air cylinder 81 operates and the temporary sealing member 79 advances, and the bag W
Is temporarily sealed to the sealing portion f of the spout S. At this time, the temporary seal receiving member 85 rises together with the holding member 19 and the suction cup 21 and is located on the opposite side of the spout S. Immediately after the temporary sealing, the suction of the suction cup 21 stops, and subsequently, the air cylinder 39 operates in the reverse direction to lower the divided cam 38,
The holding member 19 and the suction cup 21 descend to the lower end position.

(M) When moving from the stop position (2-4) to the stop position (2-1), the bag W temporarily sealed with the spout S is filled together with the spout S with the rotation of the rotary table 77. Move to the device 1 side. During the movement, the cam roller 34 rolls in the cam groove 37a of the fixed cam 37 and rises, the cam roller 59 rolls on the fixed cam 62 and descends, and the cam roller 46 moves in the cam groove 48a of the fixed cam 48. Rolled down and lowered, the holding member 19 and the suction cup 21
Is in the middle position, the bag bottom receiving base 20 is at the lower position, and the holding member 19 is opened.

Next, another example of the spout insertion device according to the present invention will be specifically described with reference to FIGS. 7 to 9 (FIG. 1).
To the same members or devices as in the example of FIG. 6 are given the same numbers). FIG. 7 is a plan view of the spout insertion device and its peripheral devices. A spout supply device 9 and a bag supply device 1 are arranged around a rotary spout insertion device 91 that rotates intermittently.
3. The primary seal device 4, the secondary seal device 5, the cooling seal device 6, and the bag guide rail 92 with spout are arranged. Further, around the rotor of the spout insertion device 91, spout holding members 78 for sandwiching the spout S are installed at equal intervals in a radially outward direction, and each time the rotor is stopped, various processes (1) to (8) are performed. It is performed sequentially. That is, (1) supply of the spout S to the spout holding member 78,
(2) bag supply by the bag supply device 13, (3) fitting of the bag W to the spout S, (4) primary seal of the spout S and the bag mouth, (5) secondary seal, (6) cooling seal, (7) Discharge of spouted bags and (8) Discharge of defective bags.

The spout insertion device 91 includes a pair of holding members 19, a bag bottom receiving stand 20, and a pair of suction members (suckers) 21.
Is provided around the rotary table (rotor) 18 and the cam rollers 34, 46, 59, 7
4 and the corresponding lifting / lowering cam or opening / closing cam are the same as the spout insertion device 3 described above. The cam roller 34 is an elevating cam (fixed cam 37 and split cam 38), the cam roller 46 is an opening / closing cam (fixed cam 48 and split cam),
The same applies to the point that the cam roller 59 moves up and down by the elevating cam (fixed cam 62) and the cam roller 74 moves up and down by the opening / closing cam 73.

On the other hand, the biggest difference from the spout insertion device 3 is that the columns 93 are erected around the rotary table 18 at equal intervals, and the spout holding member 78 is attached outwardly. . The spout holding member 78 is located above the insertion means. Further, since the spout S and the bag W are supplied, the main seal is performed, and the spout is discharged as a spout-equipped bag, the number of processes is large, and the stop positions are set many. Further, although not shown, the spout S (a spouted bag or a defective spout) is projected radially outward from the spout holding member 78 at the stop positions (7) and (8), and the spouted bag is spouted. A pusher device for sending the defective product to the bag guide rail 92 or dropping the defective product downward is provided.

Next, one mode of operation of the spout insertion device 91 will be briefly described with reference to FIG. The symbols in parentheses below correspond to FIG. (A) Spout S is supplied at the stop position (1),
The spout holding member 78 holds the spout. (B-d) The bag W is supplied at the stop position (2), and the air cylinder 49 is immediately activated to raise the split cam,
Thereby, the holding member 19 is closed, and both edges of the bag W are positioned and held. (E) During the movement from the stop position (2) to the stop position (3), the cam roller 59 rolls on the fixed cam 62 and rises, whereby the bag bottom receiving base 20 rises to raise the bag W. Then, the bag mouth is located in the middle of the suction cups 21, 21.

(F) Stop position (3) to stop position (4)
During the movement of the suction cup 21, the vacuum suction of the suction cup 21 starts, the cam roller 74 contacts the opening / closing cam 73 and the suction cup 21 closes, and then the contact with the opening / closing cam 73 ends and the suction cup 21 opens. Thereby, the bag mouth of the bag W is opened. Vacuum suction is continuing. (G) At the stop position (4), the air cylinder 39 is operated to raise the split cam 38, whereby the holding member 1
9 and the suction cup 21 are raised, and the opened bag W is fitted to the spout S. At almost the same time, the primary seal device 4 operates,
The opening of the bag W and the sealing portion f of the spout S are sealed, and the suction of the suction cup 21 is stopped.

(H) Stop position (4) to stop position (5)
During the movement of the fixed cam 37, the cam roller 34
7a is rolled down and the holding member 19 and the suction cup 21 are lowered to the lower end position. This state continues until the vehicle passes the stop position (8). (I) While moving from the stop position (8) to the stop position (1),
The cam roller 34 rolls and rises in the cam groove 37a of the fixed cam 37, the cam roller 59 rolls on the fixed cam 62 and descends, and the cam roller 46 rolls in the cam groove 48a of the fixed cam 48. To lower the holding member 19, the suction cup 21
And the bag bottom receiving stand 20 returns to the original height position, and the holding member 19 is opened.

[0033]

According to the present invention, since all the movable parts are installed below the spout and there are few movable parts above the bag, falling dust and oil droplets adhere to the spout and the bag. Can be prevented. In addition, accurate positioning of the bag and the spout becomes possible, and displacement during sealing or temporary sealing is prevented.

[Brief description of the drawings]

FIG. 1 is a plan view of a packaging machine including a spout insertion device according to the present invention.

FIG. 2 is a front view (a) and a side view (b) of a spout.

FIG. 3 is a sectional view of the spout insertion device.

FIG. 4 is an enlarged view of a main part thereof.

5A is a partial plan view illustrating a holding member opening and closing mechanism, and FIG. 5B is a partial plan view illustrating a suction cup opening and closing mechanism.
It is.

FIG. 6 is a diagram illustrating the operation of the spout insertion device.

FIG. 7 is a plan view of another spout insertion device and a peripheral device according to the present invention.

FIG. 8 is a sectional view of the spout insertion device.

FIG. 9 is a diagram illustrating the operation.

[Explanation of symbols]

 2 Spout supply device 3, 91 Spout insertion device 4 Primary seal device 5 Secondary seal device 6 Cooling seal device 18 Rotary table (rotor) 19 Holding member 20 Bag bottom receiving stand 21 Suction cup 34, 46, 59, 74, 86 Cam roller 37 , 48, 62 Fixed cam 38 Split cam 73 Opening / closing cam 78 Spout holding member 79 Temporary seal member 85 Temporary seal receiving member 88 Advance cam 92 Bag guide rail with spout

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor, Mae Nakamoto 1808, Nagano, Iwakuni, Yamaguchi Prefecture Toyo Automatic Machinery Co., Ltd. F-term (reference) 3E075 AA10 AA22 BA68 BB22 CA07 DE03 GA05

Claims (7)

[Claims] 1. A spout insertion device for inserting a spout into a predetermined position in a bag, comprising: a pair of holding members for positioning and holding both side edges of a supplied bag; and a bag bottom for supporting a lower end of the bag. A plurality of sets of receiving means and a pair of suction members that open by sucking the bag mouth from both sides are installed at equal intervals around the rotor that rotates intermittently. Elevating means for elevating one or both of them is installed, and when any of the inserting means stops at the sealing process position, the bag bottom receiving table and / or the suction member included in the inserting means are moved by the elevating means. A spout insertion device which rises vertically and raises an opened bag to an upper end of a seal portion of a spout positioned upward. 2. A spout insertion device for inserting a spout into a predetermined position in a bag and sealing the spout and the spout, wherein a pair of holding members for positioning and holding both side edges of the supplied bag. And, a bag bottom receiving table that supports the lower end of the bag, and a plurality of sets of insertion means consisting of a pair of suction members that open by sucking the bag mouth from both sides are installed at equal intervals around the intermittently rotating rotor, At a predetermined position above each insertion means, a spout holding member for vertically holding the supplied spout at the predetermined position is installed, and further, one or both of the bag bottom receiving table and the suction member are raised and lowered. Elevating means is installed, and when any of the insertion means stops at the sealing process position or until the sealing process position is reached, the bag bottom pedestal and / or the suction member included in the insertion means are Ascending vertically by the elevating means,
A spout insertion device which raises an opened bag to an upper end of a seal portion of the spout. 3. The spout insertion device according to claim 1, wherein both a lifting means for lifting and lowering the suction member and a lifting means for lifting and lowering the suction member are provided. 4. An elevating means for elevating and lowering the holding member, wherein when the bag is raised to the upper end of the spout seal portion by the bag bottom support and / or the suction member, the bag is simultaneously raised. Item 5. The spout insertion device according to any one of Items 1 to 3. 5. The spout insertion device according to claim 4, wherein a common elevating means for elevating and lowering the holding member and the attraction member is installed, and these elevate and lower at the same time. 6. The holding member has a substantially V-shape in plan view, has a predetermined length in the vertical direction, is attached to the tip of each of the rotating arms, is opposed to each other, and swings in a predetermined range. The spout insertion device according to any one of claims 1 to 5, wherein the bag is opened and closed, receives the bag in an open state, and closes to hold both side edges thereof. 7. The device according to claim 1, wherein the pair of holding members narrows a distance between the pair of holding members by a predetermined distance when the suction member sucks and opens the bag mouth of the bag from both sides. Spout insertion device.