JPH1149111A - Bagging machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve laborsaving and speeding up in a bagging operation, by automatically opening a bag, filling, and binding the mouth of the bag during a period of time that the bag gripped by a bag catch mechanism is transferred to a bag-opening mechanism, a bagging space, a bag-binding mechanism, and a tab-removing mechanism in that order. SOLUTION: A bag catch mechanism 7 holding a relatively long bag is sent to a bag-opening mechanism 3, a bagging space 4, a bag-binding mechanism 5, and a tab-removing mechanism 6 in that order by a transfer mechanism 8, and a bagging operation is therefore performed by the action of each mechanism. In the case, in the bag-opening mechanism 3, air is blown from an air jet device into the mouth of the bag held by a bag-holding base 2, thereby opening the mouth, and, in the condition, the support arm of an opening/closing device is actuated to support it such that both ends of the bag in the direction of its width are encircled. Then, the mouth of the bag is gripped with the clamp arm of the bag catch mechanism 7, and, in the condition, contents are filled into the bag sent to the bagging space 4. Thereafter, the upper part of the bag is bound by the bag-binding mechanism 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bagging machine capable of semi-automatically performing a bagging operation for inserting an article into a packaging bag.

[0002]

2. Description of the Related Art Conventionally, in a place where various articles are manually inserted into a packaging bag, the bagging operation is assisted.
Various bag opening devices for facilitation have been proposed.

[0003]

The conventional bag opening apparatus has the following problems. In the bag filling operation of inserting an item into a packaging bag, a series of processes such as a process of opening a bag, a process of maintaining an open state of a bag, a process of inserting an item into a bag, a process of binding an opening of a bag, and the like. Work is needed. However, the conventional bag opening apparatus mainly has a configuration in which a bag is automatically opened. Therefore, operations other than the bag opening operation have to be manually performed as before, and it has not been possible to sufficiently contribute to the reduction of the labor and the time required for the bag packing operation. SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and realizes a bag filling machine capable of automatically opening a bag, maintaining an open state, and binding the opening of the bag. Labor savings and speeding-up of labor will lead to a reduction in labor costs, thereby reducing the cost of bagged products.

[0004]

Means taken by the present invention are as follows. A bag holding base, a bag opening mechanism, a bag filling work space, a bag binding mechanism, and a tab removing mechanism are provided on the main body frame, and a bag catching mechanism and a bag catching mechanism for sequentially sending the bag catching mechanism to each of the above mechanisms are provided. In a bag filling machine provided with a transfer device, the bag catching mechanism comprises a clamp arm for sandwiching both ends of the opening of the bag from inside and outside, and an opening / closing element for opening and closing the clamp arm. The holding table is configured to hold a bag having an opening formed in a stepped manner, and the bag opening mechanism is opened by the air injection device that blows air into the opening of the bag to open the bag. A support arm for supporting both ends in the width direction of the bag, an opening / closing device for the support arm, and a driving means for closing the bag catch mechanism are provided. It has a sufficient space for the bag to enter, and has a locking means for locking the opening and closing device of the bag catching mechanism.The bag binding mechanism binds the vicinity of the lower part of the opening of the bag with an adhesive tape. And a slide base provided with a cutter for cutting off the upper part of the binding part, and a feeder for moving the slide base toward and away from the bag. To open the bag catching mechanism, and an air ejecting device for removing the cut pieces of the bag. The present invention is a bag filling machine having the above configuration.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention operates as follows.
In the bag filling machine of the present invention, the bag catching mechanism moves in the order of the bag opening mechanism, the space for bag filling operation, the bag binding mechanism, and the tab removing mechanism, and the operation of each mechanism performs the bag filling operation. First, in the bag opening mechanism, the opening of the bag held by the bag holding table is opened by the air injection device. Next, the support arm is opened to support both ends in the width direction of the bag and stabilize the open state. Then, the driving means closes the clamp arm of the bag catch mechanism, and holds the bag in the open state with both ends of the opening portion of the bag interposed therebetween. The bag catching mechanism is sent to the bagging work space by the transfer device. In the bagging space, the closed state of the clamp arm is fixed by the locking means. Then, the contents are inserted into the bag from the space above the opening of the bag. Since the clamp arm is locked, the bag does not fall off due to the weight of the contents. The bag catch mechanism holding the bag filled with the contents is sent to the bag binding mechanism by the transfer device. In the bag binding mechanism, the slide base including the binding device and the cutter advances toward the vicinity of the lower portion of the opening of the bag, whereby the opening of the bag is bound and separated. The bag catch mechanism is sent to the tab removing mechanism, and the clamp arm is opened by the opening means. As a result, the cut pieces of the bag are released and further blown off by the air injection device to be removed. By the above-described series of operations, the opening of the bag, the holding of the opened state, the insertion of the contents, the binding of the bag, the separation, and the removal of the cut pieces are semi-automatically and mechanically performed.

[0006]

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, on a main body frame (1), a bag holding table (2), a bag opening mechanism (3), a space for bag filling work (4), and a bag binding mechanism (5). And a tab removing mechanism (6). More specifically, a bag opening mechanism (3), a space for bag filling work (4), and a bag binding mechanism (5) are annularly arranged at equal intervals on a cylindrical main body frame (1) as shown in the figure. The bag holder (2) is provided on the front surface of the bag opening mechanism (3), and the tab removing mechanism (6) is provided at a position between the bag binding mechanism (5) and the bag opening mechanism (3). The body frame (1) is provided with a bag catch mechanism (7) and a transfer device (8) for sequentially sending the bag catch mechanism (7) to each of the above mechanisms. As a specific configuration,

As shown in FIG. 2, three bag catch mechanisms (7) are disposed at equal intervals on a disk base (81), and the disk base (81) is connected to a main body frame by a main shaft (82). (1) It is attached rotatably. Main shaft (8
2) At the lower part, a drive shaft (88) is provided on the main body frame (1) so as to be freely turnable so that the axis of the main shaft (82) is the same as that of the main shaft (82). Is provided. In addition, there is provided a feed gear (85) for meshing with and rotating the one-way clutch gear (84), and a driving means such as an air cylinder (AS) for moving the feed gear (85) forward and backward. Positioning disk (83) on main shaft (82)
And three holes (83) are formed in the positioning disc (83).
1) are provided at equal intervals. One-way clutch gear (8
4), an air cylinder (AS) for moving the connecting pin (87) into and out of the hole (831) is provided via a stay (89). Also, an air cylinder (AS) for moving the stopper pin (86) into and out of the hole (831) is provided.
The above air cylinder (AS) having a connecting pin (87)
And is fixed to the main body frame (1) so as to be at a different position from the above.

[0007] The bag catching mechanism (7) holds the bag (A) in an open state, and holds the bag (A) in a bag opening mechanism (3), a bag packing work space (4), a bag binding mechanism (5), and a tab removal. This is a mechanism for sending to the mechanism (6). The configuration is such that a clamp arm (71) for sandwiching both ends of the opening (A1) of the bag (A) from inside and outside, and the clamp arm (7).
1) and a switch (72) for opening and closing the clamp arm (71).

In the embodiment shown in FIG. 3, the clamp arm (7
1) is composed of a fixed arm (711), a movable arm (712), and a link (713). Fixed arm (71
The frame (71) is positioned so that 1) is located outside both ends of the opening (A1) of the bag (A) held by the bag holding table (2).
0) (not shown). Movable arm (712)
Is pivotally supported by the fixed arm (711), and is turned toward the inside of both ends of the opening (A1) of the bag (A).
11), the bag (A) is sandwiched and held during this time. The contact between the movable arm (712) and the fixed arm (711) is subjected to anti-slip processing to prevent the bag (A) from falling off. Left and right movable arms (712)
Are linked and linked by a link (713). At the connection point of the link (713), a roller-shaped switch (72)
Is provided. By lowering the switch (72), the movable arm (712) rotates via the link (713) to abut on the fixed arm (711), and the clamp arm (7
1) is in a closed state. Conversely, when the switch (72) is raised, the clamp arm (71) is opened.

The bag holding base (2) is configured to hold a plurality of bags (A) having openings (A1) formed in steps.
It is provided on the front surface of the bag opening mechanism (3). The bag opening mechanism (3)

FIG. 4 shows an air injection device (31) located above the bag holding table (2) and opening the opening (A1) of the bag (A) by blowing air, and a support arm (32). )When,
It comprises an opening / closing device (33) for the support arm (32) and a driving means (34) for closing the clamp arm (71). The support arm (32) is connected to the air injection device (3).
The opening and closing device (3) is for supporting both ends in the width direction of the bag (A) opened by 1) and stabilizing the opening state.
It is opened and closed by 3). The structure of the opening / closing device (33) is such that rotating gears (331) fixed to the ends of the left and right support arms (32) are meshed with each other to interlock with each other, and a feed gear (332) is meshed with the gears. Feed gear (33
An air cylinder (AS) or the like is provided as driving means for moving 2) back and forth. As described above, the air cylinder (A
S) causes the feed gear (332) to move forward and backward, and the support arm (32) opens and closes via the rotating gear (331). The driving means (34) is not shown, but the opening / closing member (7) of the bag catch mechanism (7) is operated by an air cylinder (AS) or the like.
2) The clamp arm (71) is closed by pressing down.

The bagging space (4) has a sufficient space (41) for inserting the contents (N) from above the bag (A) opened by the bag opening mechanism (3). In addition, a lock means (42) for locking the opening / closing element (72) of the bag catch mechanism (7) and fixing the open state of the bag catch mechanism (7) is provided. As a configuration example of the lock means (42),

As shown in FIG. 5, a rail-shaped body or the like that restrains the movement (elevation) of the switch (72) can be considered.

The bag binding mechanism (5) includes an adhesive tape (52).
A slide base (51) including a binding device (52) for binding near the lower portion of the opening (A1) of the bag (A) and a cutter (53) for cutting off the upper portion of the binding portion according to 1); It comprises a feeding device (54) for moving the slide base (51) toward and away from the bag (A).

FIG. 6 is an explanatory view showing a slide base (5
An introduction path (511) for passing the bag (A) is formed in 1), and a binding device (52) using an adhesive tape (521) and a cutter (53) are provided on the introduction path (511). The binding device (52) may have the same configuration as that of a general device used for binding bags, and a description thereof will be omitted. The cutter (53) is configured to cut off an upper portion of a binding portion by the binding device (52). An air cylinder (AS) or the like is used as a feeding device (54) for moving the slide base (51) toward and away from the bag (A). In addition, bag (A)
In order to more reliably perform the binding, a press device (9) may be provided. This is a device for collecting and fixing the vicinity of the opening (A1) before binding and cutting the bag (A) to make it stable. Its configuration is a press arm (9) that opens and closes like scissors using an air cylinder (AS) or the like.
1) and the press arm (91) with the opening (A) of the bag (A).
1) Air cylinder (A
S) or other sliding means (92).

The tab removing mechanism (6) moves the opening / closing member (72) of the bag catch mechanism (7) to move the clamp arm (7).
Opening means (61) for opening 1) and an air injection device (6) for removing cut pieces (a) of bag (A).
2).

FIG. 7 is an explanatory view based on FIG. 7;
Is a rail-shaped body inclined obliquely upward, and when the bag catching mechanism (7) passes through the rail-shaped body, the switch (7)
2) rises along the rail-shaped opening means (61), and the clamp arm (71) is opened accordingly. The air injection device (62) is configured to blow off the cut piece (a) of the bag (A) released by the opening of the clamp arm (71) by air and remove it.

Next, the operation of the present invention will be described. The bag filling machine of the present invention has a bag catch mechanism (7) holding a bag (A).
Are sequentially sent by a transfer device (8) to a bag opening mechanism (3), a bag filling space (4), a bag binding mechanism (5), and a tab removing mechanism (6), and a series of operations are performed by the action of each mechanism. Bagging work is performed. The operation of each mechanism is described below.
This will be described with reference to the drawings. First, in the bag opening mechanism (3),

As shown in FIG. 4, an air injection device (31) blows air to an opening (A1) of a bag (A) held on a bag holding table (2). The bag (A) is inflated by air, and the opening (A1) is in an expanded state. Next, the opening / closing device (33) operates to open the support arm (32). In other words, the feed gear (332) moves forward by the air cylinder (AS) to rotate the rotary gear (331), thereby supporting the support arm (3).
2) is opened and the bag (A) is supported by holding both ends in the width direction. Next, the clamp arm (71) of the bag catch mechanism (7) located in the bag opening mechanism (3) is actuated by the driving means (34) to open the bag (A).
And hold it. That is,

As shown in FIG. 3, a driving means (24) (not shown) such as an air cylinder (AS) pushes down a switch (72) of a bag catching mechanism (7) to lower the link ( 713) via the movable arm (712)
Rotates toward the inside of both ends of the opening (A1) of the bag (A), and holds the bag (A) between the fixed arm (711). Next, the support arm (32) is closed to release the bag (A), and the transfer device (8) is operated to move the bag catching mechanism (7) holding the bag (A) to the bagging work space ( Send to 4). The operation of the transfer device (8)

FIG. 2 will be described. First, an air cylinder (A
S) causes the connection pin (87) to enter the hole (831) of the positioning disk (83). Thereby, the drive shaft (88) provided with the one-way clutch gear (84)
And the main shaft (82) are connected. next,
The feed gear (85) moves forward by the air cylinder (ASS) to rotate the one-way clutch gear (84) by 120 degrees, whereby the main shaft (82) and the disk base (81) rotate. When the rotation is completed, the connecting pin (87) is retracted and comes out of the hole (831), and the feed gear (85) is retracted to return the one-way clutch gear (84) to the original position. Then, the stopper pin (86) enters the hole (831) to lock the positioning disc (83) and fix it so as not to move from that position. By repeating the above, the disk base (81) is rotated by 120 degrees, and the bag catch mechanism (7) provided on the disk base (81) is sequentially transferred to the bag opening mechanism, the bag filling space, and the bag binding mechanism. .

In the bagging work space (4)

As shown in FIG. 5, the locking means (42) locks the opening / closing element (72) of the bag catch mechanism (7) to fix the clamp arm (71) in the closed state. That is, the upward movement of the opening / closing member (72) is restricted by the rail-shaped locking means (42) so that the clamp arm (71) is not opened. Then, the contents (N) are inserted into the bag (A) from the space (41) above the opening (A1) of the bag (A). At this time, the clamp arm (71)
Is fixed so as not to move, so that the bag (A) does not come off due to the weight of the contents (N) and fall off. The bag catch mechanism (7) holding the bag (A) filled with the contents (N) is sent to the bag binding mechanism (5) by the transfer device (8).

In the bag binding mechanism (5),

FIG.

As shown in FIG. 9, first, the press device (9) is operated, and this presses and focuses around the opening (A1) of the bag (A).
Fix to a stable state. That is, the air cylinder (A
The press arm (91) advances toward the vicinity of the opening (A1) of the bag (A) by a slide means (92) such as S). The press arm (91) is closed like scissors by the air cylinder (AS) to converge and fix the vicinity of the opening (A1) of the bag (A). next

FIG. 10 shows a slide base (51) provided with a binding device (52) and a cutter (53) as shown in FIG.
Moves forward near the lower part of the opening (A1) of the bag (A). The bag (A) is connected to the introduction path (51) of the slide base (51).
1) As it moves upward, it is bound by the adhesive tape (521) of the binding device (52), and the upper portion of the bound portion is cut off by the cutter (53). Thereby, the bag (A) filled with the contents (N) is taken out at hand. The slide base (51) is retracted, and the bag catch mechanism (7) holding the cut pieces (a) of the bag (A) is sent to the tab removing mechanism (6) by the transfer device (8).

The operation of the tab removing mechanism (6)

FIG. The opening means (61) moves the opening / closing element (72) of the bag catch mechanism (7) in the opening direction. That is, when the bag catch mechanism (7) passes, the opening / closing element (72) rises along the opening means (61) of the rail-like body inclined obliquely upward, whereby the clamp arm (71) opens. Things. When the clamp arm (71) is opened, the cut piece (a) of the bag (A) held here is released, and the cut piece (a) is blown off by the air injection device (62) and removed. By the above series of operations, the opening of the bag (A), the holding of the open state, the insertion of the contents (N), the binding of the bag (A), the separation, and the removal of the cut-off piece (a) are semi-automatic and mechanical. Is what is done.

The construction of the bag filling machine according to the present invention comprises a bag holding table, a bag opening mechanism, a space for bag filling work on the main body frame,
In a bag filling machine provided with a bag binding mechanism and a tab removing mechanism, and a bag catching mechanism and a transfer device for sequentially feeding the bag catching mechanism to each of the above mechanisms, the bag catching mechanism includes an opening of the bag. It comprises a clamp arm for sandwiching both ends from the inside and the outside and an opening and closing device for opening and closing the clamp arm, and the bag holding table is configured to hold a bag having an opening formed in a stepped manner, The bag opening mechanism includes an air ejecting device that blows air into the opening of the bag to open the bag, a supporting arm for supporting both widthwise ends of the bag opened by the air ejecting device, and an opening / closing device for the supporting arm. And a driving means for closing the bag catching mechanism, the bagging work space has a sufficient space for inserting contents from above the bag, and the opening and closing device of the bag catching mechanism. The bag binding mechanism has a locking means for locking, the bag binding mechanism comprises a binding device for binding around the lower portion of the opening of the bag with an adhesive tape, and a slide base including a cutter for cutting off the upper portion of the binding portion. And a feeder for moving the slide base toward and away from the bag, wherein the tab removing mechanism removes an opening means for opening the bag catching mechanism by moving an opening / closing element of the bag catching mechanism and a cut piece of the bag. And an air injection device for performing the operation. Therefore, the following specific effects can be obtained. In the bag filling machine of the present invention, of the series of bag filling operations, operations other than inserting the contents into the bag, namely, opening the bag, maintaining the open state, bundling the opening of the bag, and cutting the cut piece of the bag. All removal is automatic. Therefore, it is possible to reduce the labor required for the bagging operation, the time and the labor cost, and thereby the cost of the bagged product can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a schematic configuration of an embodiment of the present invention.

FIG. 2 is a perspective view showing a part of the configuration of the present invention.

FIG. 3 is a perspective view showing a part and operation of the configuration of the present invention.

FIG. 4 is a perspective view showing a part and operation of the configuration of the present invention.

FIG. 5 is a front view showing the operation of the present invention.

FIG. 6 is a plan view showing a part of the configuration of the present invention.

FIG. 7 is a perspective view showing the operation of the present invention.

FIG. 8 is a front view showing the operation of the present invention.

FIG. 9 is a front view showing the operation of the present invention.

FIG. 10 is a front view showing the operation of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body frame 2 Bag holding base 3 Bag opening mechanism 31 Air injection device 32 Support arm 33 Opening / closing device 331 Rotating gear 332 Feed gear 34 Drive means 4 Space for packing work 41 Space 42 Lock means 5 Bag binding mechanism 51 Slide base 511 Introduction Road 52 Bundling device 521 Adhesive tape 53 Cutter 54 Feeding device 6 Tab removing mechanism 61 Opening means 62 Air injection device 7 Bag catching mechanism 71 Clamp arm 710 Frame 711 Fixed arm 712 Movable arm 713 Link 72 Opening / closing device 8 Transfer device 81 Disk base 82 Main shaft 83 Positioning sprocket 831 hole 84 One-way clutch gear 85 Feed gear 86 Stopper pin 87 Connection pin 88 Drive shaft 89 Stay 9 Press device 91 Press arm 92 Slide Means A Bag A1 Opening AS Air Cylinder

Claims (1)

[Claims] A bag holding table, a bag opening mechanism, a bag filling work space, a bag binding mechanism, and a tab removing mechanism are provided on a main body frame. In a bag filling machine provided with a transfer device for sequentially feeding a bag, a bag catch mechanism includes a clamp arm for sandwiching both ends of the opening of the bag from inside and outside, and a switch for operating the opening and closing of the clamp arm. The bag holding base is configured to hold a plurality of bags each having an opening formed in a stepped manner, and the bag opening mechanism is located at an upper part of the bag holding base and blows air to the opening of the bag. An air injection device to be opened, a support arm for supporting both ends in the width direction of the bag opened by the air injection device to stabilize the opening state, an opening / closing device for the support arm, and a clamp arm of a bag catch mechanism. The bag packing work space has a sufficient space for inserting contents from above the bag opened by the bag opening mechanism, and the bag catching mechanism has a space for inserting contents. The bag binding mechanism includes a locking unit for locking the opening / closing element to fix a closed state of the bag catching mechanism. The bag binding mechanism includes a binding device for binding the vicinity of the lower portion of the opening of the bag with an adhesive tape, and a binding unit. A slide base provided with a cutter for cutting off the upper part of the portion, and a feeder for moving the slide base toward and away from the bag, and the tab removing mechanism moves the opening / closing member of the bag catch mechanism to move the bag catch mechanism. A bag filling machine comprising: an opening means for opening a bag; and an air ejecting device for removing cut pieces of the bag.