JP2014108817A - Double packing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a double packing device by devising a transfer part so as to surely carry an inner bag manufactured by a bag making filling device up to an outer bag sealing device, even if a high speed is attained.SOLUTION: A double packing device comprises: a driving side rotary part 79 connected to a rotary shaft R; a driven side rotary part 69 relatively rotatably arranged to the driving side rotary part 79; and a pair of rotary hands 63 and 63 respectively rotatably journaled to the driven side rotary part 69, and a cam follower is respectively separately connected to the pair of rotary hands 63 and 63, and is engaged with this and a cam member 81 provided on the driving side rotary part 79 side, and the pair of rotary hands 63 and 63 reciprocate between an inner bag receiving position and a delivery position by reciprocal rotation of the rotary shaft, and the rotary hands 63 and 63 are closed in the receiving position, and are opened in the delivery position. Feeding operation and sandwiching/separating operation of the rotary hands 63 and 63 are realized by using the common rotary shaft, and the timing of both operations is easily taken, and reception of the inner bag IN does not fail.

Description

  The present invention relates to a double wrapping apparatus that encloses an inner bag, which is produced by filling a filling material such as coffee powder and tea leaves at the same time while making a bag, into an outer bag.

Recently, the packaging material is made of a mesh material having water permeability so that the filling material can be easily extracted. For this reason, if the packaging material is in a state where it is in direct contact with the outside air, the flavor of the filling material filled therein is lost in a relatively short time.
Then, double packaging which encloses in an outer bag is further performed using an apparatus as shown in patent documents 1 and 2, and if this double packaging can be performed by a continuous line, time will be shortened and production efficiency will be good. It was expected to be.

Thus, in this double packaging device, the inner bag produced by the bag making and filling device is carried to the outer bag enclosing device while grasping with a pair of hands, and when trying to increase the speed in order to increase the production efficiency, Since the feeding operation of the hand also becomes high speed, it becomes difficult to adjust the delicate grip timing of the inner bag, and the inner bag may not be gripped and may move idle.
Moreover, even if the inner bag is poorly filled with an object to be filled, if double packaging up to the outer bag is continuously speeded up, it is difficult to thin out in the middle.

International Publication No. 2009/101686 JP 2004-123150 A

The present invention has been made in view of such a current situation, and is a double packaging device devised to reliably carry an inner bag manufactured by a bag making and filling device to an outer bag sealing device even if speed is increased. The purpose is to provide
Another object of the present invention is to provide a double wrapping device devised so that a defective inner bag can be thinned out without being enclosed in an outer bag even if the speed is increased.

  In order to achieve the above object, the invention according to claim 1 is the double wrapping apparatus provided with the transfer part for transferring the inner bag manufactured by the bag making and filling apparatus to the outer bag sealing apparatus, wherein the transfer part has an axis. A driving-side rotating unit coupled to a rotating shaft that rotates about and rotating together; a driven-side rotating unit disposed so as to be capable of relative rotation in both directions around an axis with respect to the driving-side rotating unit; and the driven-side rotation A pair of rotating hands that are pivotally supported by the respective parts, a cam follower provided separately for each of the pair of rotating hands, and a pair of cam grooves with which the cam followers are engaged. And a pair of rotating hands reciprocally move between a receiving position and a delivery position of the inner bag by forward and reverse rotation of the rotating shaft, and the driving side rotating section. Relative movement with respect to the driven side rotating part and the Muforoa and closed at the receiving position by cooperative operation of the cam groove, a double packaging and wherein the opening in the delivery position.

  According to a second aspect of the present invention, in the double packaging apparatus according to the first aspect, a cam groove of a cam member is provided in the arm portion of the rotating hand between the driving side rotating portion and the holding piece of the rotating hand. The double wrapping apparatus is engaged with a cam follower.

  According to a third aspect of the present invention, in the double packaging device according to the second aspect, the pair of cam grooves extend from the support base side of the pair of rotating hands toward the holding piece side in a direction away from each other. It is the double packaging device characterized.

  According to a fourth aspect of the present invention, in the double packaging apparatus according to any one of the first to third aspects, a confirmation means for confirming a filling state of the filling material into the inner bag and a thinning means are provided, When the filling means is confirmed by the confirmation means, the inner bag is thinned out by the thinning means.

  According to a fifth aspect of the present invention, in the double wrapping apparatus according to the fourth aspect, the thinning means has a movable inclined surface, and when thinning, the thinned surface is brought under the falling track of the inner bag, It is a double packaging device characterized in that the inner bag is slid down along the inclined surface and thinned out.

  According to a sixth aspect of the present invention, in the double wrapping apparatus according to the fifth aspect, the thinning-out means includes a link provided on the driven side rotating portion side and a member having an inclined surface that moves in conjunction with the link. The double wrapping apparatus is configured and configured such that the member moves forward and backward under the dropping track of the inner bag in conjunction with the movement of the rotating hand from the receiving position to the delivery position.

According to the transfer part of the double packaging device of the present invention, the inner bag manufactured by the bag making and filling device can be reliably transported to the outer bag sealing device even if the operation is speeded up.
Moreover, according to the transfer part of the double packaging apparatus of this invention, even if it speeds up operation | movement, it can thin out, without enclosing the poorly filled inner bag of a to-be-filled material in an outer bag.

It is a perspective view of the double packaging apparatus which concerns on embodiment of this invention. It is an expansion perspective view of the transfer part contained in FIG. FIG. 3 is a partial view of a transfer unit in FIG. 2. It is the fragmentary view seen from the other direction of FIG. It is a side view for description of the transfer part of FIG. It is a side view for description of the transfer part of FIG. It is a related figure of the operation | movement transition of the rotation hand by the transfer part of FIG. 2, and transfer of an inner bag. FIG. 8 is a relationship diagram between the operation transition of the rotating hand and the transfer of the inner bag following FIG. 7. FIG. 9 is a relationship diagram between the operation transition of the rotating hand and the transfer of the inner bag following FIG. 8. FIG. 10 is a relationship diagram between the operation transition of the rotating hand and the transfer of the inner bag following FIG. 9. FIG. 11 is a relationship diagram between the operation transition of the rotating hand and the transfer of the inner bag following FIG. 10. It is a perspective view of the inner bag with which the to-be-filled material was manufactured with the bag making and filling apparatus of FIG. It is a perspective view of the outer bag with which the inner bag was enclosed with the double packaging apparatus of FIG.

FIG. 1 shows an outline of the overall configuration of the double packaging device 1. The double wrapping apparatus 1 is a so-called vertical type, and the packaging material is sent out from the upper side to the lower side, and the configuration of the accommodating portion will be schematically described in order from the upper side to the lower side.
Reference numeral 3 denotes a weighing unit, and the weighing unit 3 measures a predetermined amount of the filling material P (coffee powder in this embodiment) and discharges it. A charging guide 5 is connected to the discharge port of the measuring unit 3. Further, a former 7 is also provided, and the leading end of the charging guide 5 enters the former 7 from the side and extends downward.
After the continuous band-shaped wrapping material S (IN) is unwound from a reel (not shown), it is changed to a posture in which the continuous direction coincides with the vertical direction while curving so as to embrace the curved outer surface of the former 7. In preparation for making a bag, the filling material P is introduced into the packaging material S (IN) formed into a cylindrical shape from the insertion guide 5 and the inner bag IN is formed as it goes downward.

  Below the above, a bag making and filling device 9, a transfer unit 61, and an outer bag sealing device 101 are provided in order, and in the bag making and filling device 9, the packaging material S (IN) is formed by the opposing roller pairs 11 and 11. While being fed, the inner bag IN shown in FIG. 12 is manufactured by being sealed by the vertical sealing means 13 and the horizontal sealing means 15, and the inner bag IN is clamped by the clamp piece 17. It is sent to the receiving port 102 of the outer bag sealing device 101 by the operation of the rotating hand 63, and the packaging material S (OUT) is sealed by the vertical sealing means (not shown) and the horizontal sealing means (not shown) in the outer bag sealing device 101. Thus, the outer bag OUT shown in FIG. 13 is manufactured.

Hereinafter, the transfer unit 61 will be described in detail.
As shown in FIG. 2, the arm portion 65 of each rotary hand 63 includes a curved portion 65a and a straight portion 65b extending from one end thereof in a direction orthogonal to the straight portion 65b, and the straight portion 65b is a bulging side of the curved portion 65a. Protruding. A rectangular plate-shaped clamping piece 67 is connected to the tip of the straight portion 65b, and the other end side of the curved portion 65a serves as a support source.

3 and 4, reference numeral 69 denotes a driven-side rotating portion, and this driven-side rotating portion 69 receives a driving force from a motor (not shown) and rotates around the axis as indicated by an arrow R. A plate-like base block 69a that is loosely fitted to the base block 69a and a plate-like side block 69b that rises from the edge of the base block 69a.
A stopper 71 and a link member 73 are connected to the base block 69a on a plate surface opposite to the side block 69b side, and straight bars protrude outward from the base block 69a.

  A groove 75 is formed in the side block 69b, and a pair of shafts 77 and 77 are passed to the groove 75. The ends of the bending portion 65a of the arm portion 65 of the rotating hand 63 described above are rotatably supported by the shafts 77, and the pair of rotating hands 63 and 63 rotate around the shafts 77 and 77, respectively. It is possible.

Reference numeral 79 denotes a drive-side rotating portion. The drive-side rotating portion 79 is externally fitted to the rotating shaft R and always rotates together with the rotating shaft R.
The drive side rotation part 79 is provided on the same side as the side block 69b with respect to the base block 69a of the driven side rotation part 69, and these are coaxially opposed. The driving side rotating part 79 is provided with a through groove and rolling elements engaged therewith, and the driven side rotating part 69 is provided with a pair of concave grooves, so that the rolling element is pressed against the concave groove side by a torque spring. It has become. Therefore, when the rolling element is detached from the concave groove, the transmission of torque is interrupted, and only the drive side rotating part 79 connected to the rotating shaft R rotates.

A cam member 81 is attached to the drive side rotating portion 79. The cam member 81 includes a mounting portion 81a to the driving side rotating portion 79 and a cam portion 81b. The cam portion 81b is formed on the curved portions 65a and 65a of the rotating hands 63 and 63 supported by the driven side rotating portion 69. It has an opposing cam surface. A pair of cam grooves 83, 83 are formed on this cam surface. The pair of cam grooves 83, 83 are slightly inclined to form a “C” shape. On the support side E of the rotating hand 63, the cam grooves are separated from each other and the distance between the cam grooves is increased. As the cam grooves approach each other, the distance between the cam grooves is reduced.
Cam follower rollers 85 and 85 are slidably engaged with the cam grooves 83 and 83, respectively. The cam follower provided with each roller 85 is attached to the bending portion 65 a of the rotating hand 63.

  The rotation range of the driven side rotating unit 69 is restricted. As shown in FIG. 5, two locking projections 87 and 87 are provided on the gear box 86 side in which a gear for transmitting a driving force from a motor (not shown) to the rotating shaft R is accommodated. The locking projections 87 and 87 are on the rotation path of the stopper 71 described above. Therefore, in the range where the stopper 71 contacts the left and right engaging projections 87, 87, the rotation axis R can be rotated forward and reverse, and the rotation range of the driven side rotating portion 69 is also in that range, and the cam member 81 has a roller 85 and 85 are always engaged.

  With this configuration, when the rotation axis R rotates forward, the driven-side rotating portion 69 side hits one of the locking projections 87 and rotation is prevented, so that the rolling element on the driving-side rotating portion 79 side is driven-side rotated. The torque transmission is interrupted when the rolling element engages with the other concave groove by separating from one concave groove on the part 69 side, and the driven side rotary part 69 is rotated when the rotating shaft R rotates in the reverse direction. When the side is brought into contact with the other locking projection 87 and the rotation is prevented, the rolling element on the driving side rotating part 79 side separates from the other concave groove on the driven side rotating part 69 side and the transmission of torque is cut off. Then, torque is transmitted when the rolling elements engage with the one concave groove.

Therefore, assuming that the forward rotation is the feed direction, during the forward rotation, the rotary hands 63 and 63 are moved in the feed direction while being closed, and the torque is cut off at the delivery position which is the lowest position. Due to the relative movement of the rollers 85, 85 to the “E” side, the arm portions 65, 65 open in a fan shape, and then torque is transmitted again, and the arm portions 65, 65 remain in their open state. Then, when the rotation is changed to the reverse rotation, the rotating hands 63 and 63 move in the returning direction while being opened, the torque is cut off at the receiving position which is the uppermost position, and the rollers 85 to the “F” side of the cam grooves 83 and 83, Due to the relative movement of 85, the arm portions 65 and 65 are closed, and then torque is transmitted again, and the arm portions 65 and 65 remain in the closed state.
In this double wrapping apparatus 1, the holding pieces 67, 67 are opposed to each other with the inner bag IN clamped on the upper side by the clamp pieces 17, 17 at the receiving position, and at the position directly above the opening 97 at the delivery position. The inner bag IN is smoothly transferred to the outer bag sealing device 101 by the reciprocating motion of the rotating hand 63 described above.

As described above, the link member 73 is also connected to the driven side rotating portion 69, and a roller 89 is attached to the tip thereof. As shown in FIG. 6, the roller 89 is slidably engaged with the cam groove 93 of the cam member 91. The lower side of the cam member 91 is a slide rail 91a having a concave cross section, and the concave portion is slidably contacted and guided by an inclined guide member 94.
Reference numeral 95 denotes an inclined chute, and the inclined chute 95 is fixed above the receiving port 102 of the outer bag sealing device 101. An opening 97 is provided on the upper side of the inclined chute 95, and the receiving port 102 is arranged immediately below the opening 97.

Reference numeral 98 denotes a closing plate, and the closing plate 98 has a size capable of closing the opening 97 described above. The above-described guide member 94 is attached to the closing plate 98 at one end side.
Therefore, when the driven side rotating portion 69 moves, the closing plate 98 is moved by the linked operation of the link member 73 and the closing plate 98, and the opening 97 is closed or opened from the lower side.
The thinning means includes the link member 73, the roller 89, the cam member 91, and the inclined chute 95 described above.

In FIG. 7, reference numeral 99 denotes a sensor, and the sensor 99 is positioned below the lateral sealing means of the bag making and filling device 9. The sensor 99 is an optical type, and the light emitting side and the light receiving side are opposed to each other with an inner bag (IN) clamped by a pair of clamp pieces attached to the horizontal sealing means.
The sensor 99 detects whether or not the inner bag IN is filled with a predetermined amount of the filling material P. If there is a filling failure, the control unit of the apparatus stops the rotation of the rotary shaft R. The inner bag IN falls on the inclined chute 95 with the opening 97 closed, slides and is discharged.

Hereinafter, the transfer unit 61 and the transfer of the inner bag IN will be described in association with each other.
FIG. 7 shows the rotating hand 63 on the way to the receiving position of the inner bag IN. When the receiving position shown in FIG. 8 is reached, the holding pieces 67 and 67 are closed to hold the inner bag IN. After that, as shown in FIG. 9, when the clamp pieces 17 and 17 are opened and released from the bag making and filling device 9 side, the rotating hands 63 and 63 are reversed to the delivery position as shown in FIG. Head. When the delivery position shown in FIG. 11 is reached, the clamping pieces 67 and 67 are opened to release the inner bag IN.
Since the closing plate 98 of the inclined chute 95 is lowered in conjunction with the feed movement of the rotating hand 63, the opening 97 is fully opened at the stage of releasing the inner bag IN, and the dropped inner bag IN is opened to the opening 97. And enters the receiving port 102 of the outer bag sealing device 101.

Thereafter, the rotating hand 63 returns to the receiving position with the holding pieces 67 and 67 being opened. Along with this return, the opening 97 is also closed by the closing plate 98.
In this way, the inner bag IN is sequentially transferred to the outer bag sealing device 101 side.
As described above, since the holding pieces 67 and 67 are returned to the receiving position while being opened, the rotary hands 63 and 63 are moved even while the inner bag IN is being lowered by the feeding by the bag making and filling device 9. Does not interfere with the bag IN.

  The filling material P in the inner bag IN is detected by the sensor 99, and when there is a filling failure, the rotating shaft R stops, so when the clamp pieces 17 and 17 are opened and the inner bag IN is released, the inner bag IN is released. The bag IN falls as it is, but in this case, since the closing plate 98 is arranged under the dropping track, it falls on the inclined chute 95 and slides down as it is to be discharged out of the apparatus and thinned out.

In this way, the inner bag IN filled with the filling material P is sequentially sent to the outer bag sealing device 101, but the rotation operation of the rotary hands 63, 63 and the pinching / separating operation are common. It is realized by receiving the rotational force from R, the timing of both operations is easy to take, and the receipt of the inner bag IN will not fail. Accordingly, it is possible to synchronize the feeding operation of the packaging material in the bag making and filling device 9 and the outer bag sealing device 101 to increase the production efficiency.
In addition, by operating the thinning means in conjunction with the above operation, it is easy to thin out defective products without stopping a series of operations.

  The embodiment of the present invention has been described in detail above. However, the specific configuration is not limited to this embodiment, and the present invention can be changed even if there is a design change without departing from the gist of the present invention. included.

  By incorporating the transfer unit of the present invention into a double packaging device, efficient use can be achieved.

DESCRIPTION OF SYMBOLS 1 ... Double packaging device 3 ... Measuring part 5 ... Insertion guide 7 ... Former 9 ... Bag making and filling device 11 ... Pair of opposing rollers 13 ... Vertical seal means 15 ... Horizontal seal means 17 ... Clamp piece 61 ... Transfer part 63 ... Rotating hand 65 ... Arm part 65a ... Curved part 65b ... Straight part 67 ... Clamping piece 69 ... Driven side rotation part 69a ... Base block 69b ... Side block 71 ... Stopper 73 ... Link member 75 ... Groove 77 ... Shaft 79 ... Drive side rotating part 81 ... Cam member 81a ... Mounting part 81b ... Cam part 83 ... Cam groove 85 ... (of arm part) ) Roller 86 ... Gear box 87 ... Locking convex part 89 ... (Link member) Roller 91 ... Cam member 93 ... Cam groove 94 ... Guide member 95 ... Inclined chute 97 ... Opening 98 ... ...... Closing plate 99 ‥‥sensor

Claims (6)

In the double packaging device provided with a transfer part for transferring the inner bag produced by the bag making and filling device to the outer bag sealing device,
The transfer unit is connected to a rotating shaft that rotates about an axis and rotates together with the driving side rotating unit, and a driven side rotating unit that is disposed so as to be capable of relative rotation in both directions around the axis with respect to the driving side rotating unit. A pair of rotating hands pivotally supported by the driven side rotating portion, a cam follower separately provided on the pair of rotating hands, and a pair of cam grooves engaged with the cam follower. And a cam member provided on the drive side rotating part side,
The pair of rotating hands reciprocate between the receiving position and the delivery position of the inner bag by forward and reverse rotation of the rotating shaft, and the relative movement of the driving side rotating part with respect to the driven side rotating part and the cam follower And the cam groove are closed at the receiving position and opened at the delivery position. In the double packaging device according to claim 1,
A double packaging device, wherein a cam groove of a cam member is engaged with a cam follower provided in an arm portion of the rotating hand between a driving side rotating portion and a holding piece of the rotating hand. In the double packaging device according to claim 2,
The pair of cam grooves extends in a direction away from each other from the support base side of the pair of rotating hands toward the holding piece side. In the double packaging apparatus according to any one of claims 1 to 3,
Checking means for checking the filling state of the filling material in the inner bag and thinning means are provided, and when the filling failure is confirmed by the checking means, the inner bag is thinned by the thinning means. Packaging equipment. In the double packaging device according to claim 4,
The thinning means is provided with a movable inclined surface, and when thinning, the thinned bag is slid along the inclined surface by thinning the inner bag by bringing the inclined surface under the falling track of the inner bag. Heavy packaging equipment. In the double packaging device according to claim 5,
The thinning means is composed of a link provided on the driven side rotating portion side and a member having an inclined surface that moves in conjunction with the link, and is linked to the movement of the rotating hand from the receiving position to the delivery position. The double wrapping apparatus, wherein the member moves forward and backward under a dropping track of the inner bag.

Images