JP2003146312A - Bag delivering apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bag delivering apparatus for use in performing a horizontal motion of a received bag W and delivering it to a gripper 18 of a charging device in a subsequent bag delivering apparatus to enable both a gusset bag and a flat bag to be supplied. SOLUTION: There are provided a pair of sucking members 16, 17 for sucking a bag at both surfaces of the bag and holding it in a vertical orientation; an opening or closing means for opening and closing these members from each other; and a reciprocating motion means for reciprocating the bag in a horizontal direction between a bag receiving and accepting position and a delivering position for a gripper 18 in a subsequent apparatus. The opening or closing means closes the sucking members 16, 17 at the receiving position (the position of a bag W1 ) and after sucking the bag, it opens this bag again under a predetermined timing. As this timing, selection can be carried out if it is opened while the sucking members 16, 17 move to the delivering position (in the case of gusset bag) or after the sucking members reach the delivering position (in the case of a flat bag). In the case of gusset, when the bag reaches the delivering position, a bag opening part becomes opened and four side edges of the bag can be held with the gripper.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bag delivery device for supplying bags one by one to a gripper such as a filling device.

[0002]

2. Description of the Related Art Japanese Utility Model Publication No. 7-18571 and Japanese Utility Model Publication No. 5
Japanese Patent Laid-Open No. 5-90506 discloses a gripper device for sandwiching and transferring a bag (a gusset bag or the like) having a fold in its side portion. One set of these gripper devices is 4 in total.
Since there is a sandwiching portion at each location, and each sandwiching portion sandwiches all the side edges of the gusset bag (total of 4 locations), the sandwiching and transfer, opening of the bag mouth, etc. can be performed reliably and stably. Further, Japanese Utility Model Laid-Open No. 55-90506 discloses a bag feeding device for supplying a gusset bag to the gripper device. This bag feeding device has a pair of operating bars with suction cups facing each other, and the operating bars are set to open and close and move up and down at a predetermined timing.
Receive the gusset bag from the suction cup of the previous process, open the bag mouth a little and hand it over to the gripper device.

By the way, in the case of a bag having no side folds, such as a flat bag or a self-standing bag having only a bottom fold,
There are a total of two parts on both side edges that are gripped by the gripper device, and there is no need to open the bag mouth when handing over to the gripper device unlike the bag feeding device of the above-mentioned publication. Rather, the opening may cause a problem such as a shift in the gripping position of the gripper device, so that the bag mouth is generally supplied in a closed state. That is, the bag feeder of the above publication is not suitable for supplying flat bags, self-supporting bags, etc., and can be said to be a bag feeder exclusively for gusset bags.

On the other hand, Japanese Unexamined Patent Publication No. 8-324518 and Japanese Unexamined Patent Publication No. 11-152114 disclose a bag feeding device for supplying a gusset bag to a gripper device without opening the bag mouth. It has the advantage of being able to supply bags and freestanding bags. However, this bag feeding device supplies the gripper device with the side portion of the gusset bag completely folded.
The gripper device for receiving also sandwiches the folded-in two side edge portions in total. Then, when opening the bag mouth in a later process, the opening area of the bag mouth becomes smaller than that of a type of gripper device that holds a total of four side edge portions,
There may be a problem that the contents cannot be filled reliably and stably.

[0005]

[Problems to be Solved by the Invention]
The gripper device of the type described in Japanese Patent No. 71 or Japanese Utility Model Laid-Open No. 55-90506, when sandwiching a gusset bag, sandwiches a total of four side edge portions by using all the sandwiching parts to form a flat bag or the like. In the case of sandwiching, it can be used by sandwiching a total of two side edge portions using only a pair of right and left sandwiching portions. That is, this gripper device can be used for both sandwiching gusset bags and sandwiching flat bags. Therefore, if the bag feeder can also be used for supplying both gusset bags and flat bags, one filling and packaging system including these gripper devices and bag feeders can be used as it is for filling and packaging both types of bags. You will be able to

Therefore, according to the present invention, in a bag feeding device (bag delivery device) of a type that receives a bag from the device of the previous process and delivers the bag to the gripper of the next device, it is possible to supply gusset bags and flat bags. The purpose is to enable dual use and ensure reliable and stable supply of both.

[0007]

SUMMARY OF THE INVENTION A bag delivery device according to the present invention comprises a pair of adsorbing members for adsorbing a bag from both sides and holding it vertically, an opening / closing means for opening and closing the pair of adsorbing members, and the pair of adsorbing members. A reciprocating means for horizontally reciprocating the suction member of the bag between the receiving position of the bag and the handing position to the gripper of the next device, wherein the opening / closing means closes the pair of suction members at the receiving position and then again It is characterized in that it is opened at a predetermined timing, and the timing can be selected while the suction member moves from the receiving position to the delivery position or after the suction member reaches the delivery position. Specifically, the opening / closing means may include a switching means for performing the selection in a part of its driving force transmission mechanism.

After the pair of suction members are closed at the receiving position and receive the bag, they are moved to the delivery position. When the bag is a gusset bag, four side edge portions of the gusset bag in an open state are held by grippers. Therefore, it is necessary to open the bag mouth of the gusset bag before the gripper is closed and the bag mouth of the gusset bag is sandwiched at the latest. Therefore, it is necessary to set the timing of opening the pair of suction members from the time after the suction members close at the receiving position to suck the bag to the time before the gripper closes. Therefore, in the present invention, the timing is set such that the suction member is opened while the suction member moves from the receiving position to the delivery position. As the pair of suction members open, the gusset bag also opens together, and the gripper can clamp the four side edge portions. After reaching the delivery position and sandwiched by the gripper, the adsorbing member is immediately opened to the atmosphere and loses its adsorbing force, whereby the delivery to the gripper is completed.

On the other hand, when the bag is a flat bag or the like, it is necessary to hold two side edge portions with grippers in a state where the bag mouth is closed. Therefore, contrary to the above, the bag mouth is opened at least until the gripper is closed. Do not open. Further, in order to completely hand over the bag to the gripper, it is necessary to open the pair of suction members immediately after the gripper is closed. As described above, in the case of a flat bag or the like, the timing for opening the pair of suction members is set after they reach the delivery position. After being gripped by the grippers, the adsorption member is immediately opened to the atmosphere and loses its adsorption force, and then is opened, whereby the delivery to the gripper is completed. In the case of a flat bag or the like, the suction member may not be communicated with the vacuum source.

The switching means is means for selecting at which timing the pair of suction members are opened depending on whether the target is a gusset bag or a flat bag. For example, when the opening / closing means is provided with a cam rotating at a constant speed and a cam lever driven thereby as a drive force transmission mechanism, the follower of the cam lever with respect to the cam is released by the operation of the switching means,
Moreover, it is sufficient that the cam lever is displaced to the position set by the switching means. In this case, either the timing at which the suction member opens is selected depending on whether the switching means is kept inactive or activated at a predetermined timing. Needless to say, in the former case,
The suction member opens at the timing set by the cam mechanism, and in the latter case, the suction member opens at the timing set by the switching means.

The pair of suction members have, for example, flat suction surfaces facing each other, and a plurality of suction holes are arranged on the suction surface along the width direction of the bag. This suction hole communicates with the vacuum source via the switching valve to suck the bag surface.
If necessary, a blind pin that blocks or opens the suction holes of at least one end in the width direction of the suction holes of each suction member can be arranged. When the bag size is relatively small and the suction hole arrangement width is wider than the bag width, the vacuum holes can be prevented by closing the suction holes protruding from the left and right ends of the bag with blind pins. This allows
This bag delivery device can reliably deliver bags of various sizes (width dimensions). Note that the suction holes for arranging the blind pins are assumed to be, for example, suction holes (one each) at one end of each suction member, suction holes (two each) at both ends, or more. It may be appropriately determined depending on the bag size range.

The bag delivery device of the present invention further comprises:
A pair of sandwiching members for sandwiching both side edges of the bag, an opening / closing means for opening and closing the pair of sandwiching members, and a reciprocating swing of the pair of sandwiching members between a bag receiving position and a transfer position to the suction member. Reciprocating rocking means may be provided.
In this case, the sandwiching member receives the bag from another member at the lower receiving position, swings upward, makes the bag vertical at the transfer position, and transfers the bag at the receiving position at the same time to the suction member. It will be.

[0013]

DETAILED DESCRIPTION OF THE INVENTION Referring to FIGS.
The bag delivery device according to the present invention will be specifically described.
First, FIG. 1 is an overall plan view of a gas displacement packaging machine, which includes an intermittent rotary rotary type filling device 1, an intermittent rotary rotary gas displacement device 2, and a conveyor magazine bag supply device 3 arranged around them. A bag delivery device 4, a printing device 5, an opening device 6, which receives a bag from the bag supply device 3 and delivers it to the gripper of the intermittent rotation rotary type filling device 1.
Bag feeding device 7, sealing device 9, cooling seal device 10, product for receiving a filled bag from the gripper of the intermittent rotation rotary type filling device 1 and delivering it to the gripper of the intermittent rotation rotary type gas displacement device 2. It consists of a discharge conveyor 11 and the like. The bag supply device 3 is
For example, similar to the one described in Utility Model Registration No. 2603966, etc., the bag positioned in contact with the stopper is sucked up by a suction cup, lifted, and handed over to the bag delivery device 4.

The bag delivery device 4 comprises a first delivery device 13 and a second delivery device 14. As shown in FIG. 2, the first delivery device 13 is a conveyor magazine type bag supply device 3
The two side edges of the bag W lifted up by the suction cup (not shown) are grasped and received by the pair of holding members (chucks 15 and 15), which are swung upward to a vertical posture. It is delivered to the second delivery device 14. The lower end position of the swing of the chuck 15 is the receiving position, and the upper end position of the swing is the delivery position. Further, as also seen from FIG. 2, the second delivery device 14 holds the bag (W ₁ ) whose both edges are sandwiched by the chuck 15 by the pair of suction members 16 and 17, and keeps the vertical position while keeping the vertical posture. The bag is moved (W ₂ ), and the bag is moved to the gripper 18 of the intermittent rotation rotary filling device 1.
Hand over to (pair).

As shown in FIGS. 2 to 4, in the first delivery device 13, the pair of chucks 15 has a fixed portion 21 fixed to the tip of the swing arm 20 and an opening / closing fulcrum shaft 22 as a center. It is composed of a movable portion 23 that can be opened and closed. The movable portion 23 is connected to an air cylinder 24 fixed to the swing arm 20 via a connecting pin and a connecting link, and when the movable portion 23 is closed by the air cylinder 24, the bag is held by the holding portion at the tip of the fixed portion 21 and the movable portion 23. Both side edges of W are clamped. The air cylinder 24 and the connecting pin and connecting link for transmitting the driving force thereof correspond to the opening / closing means in the present invention.

The base of the swing arm 20 is fixed to the mounting portion 25a of the slide holder 25, and each slide holder 25 is slidably fitted on a fulcrum shaft 26 and a guide shaft 27.
Further, both ends of the guide shaft 27 are fixed to a mounting plate 28 fixed to the fulcrum shaft 26, and both ends of an adjusting shaft 29 screwed into the slide holder 25 are rotatably supported by the mounting plate 28. The male screw portions 29a, 29 of the adjusting shaft 29 are
b is also threaded in mutually opposite directions (and the corresponding female thread portion of each slide holder 25), and therefore, by rotating the handle 30 fixed to one end of the adjustment shaft 29, the chucks 15, 1
The spacing between 5 is adjusted.

A hollow stand 33 is installed on the machine base 32, and a box frame 34 is installed on it. The base of the fulcrum shaft 26 is horizontally supported in a bearing holder 35 fixed to the side wall of the box-shaped frame 34.
A swing lever 36 is fixed to one end of the inside of the unit 4.
A lifting rod 3 is connected to the swing lever 36 via a connecting portion 37.
8, the upper end of 8 is connected, and the lifting rod 38 is connected to the lower machine base 32.
It extends inward, is connected to a drive source (not shown), and moves up and down at a predetermined timing. Along with this, the fulcrum shaft 26 reciprocally rotates, the swing arm 20 reciprocally swings, and the chuck 15 reciprocally swings between the receiving position and the delivery position. The transmission mechanism including the drive source and the lifting rod 38 or the swing arm 20 that transmits the drive force to the chuck 15 corresponds to the reciprocating swing means in the present invention.

As shown in FIGS. 2 to 3 and 7, in the second delivery device 14, the pair of suction members 16 and 17 are provided.
Is composed of substantially L-shaped open / close arms 40 and 41, a suction block 42 attached to the horizontal portions 40a and 41a thereof, and the like. Each suction block 42 is formed with a plurality of suction holes 43 penetrating in the thickness direction thereof, and the suction holes 43 are arranged side by side in the horizontal direction (along the width direction of the bag W). The vertical facing surface serves as a suction surface 42a for sucking the bag W. Opening / closing arm 4
A horizontal passage 44 communicating with the atmosphere or a vacuum source through a switching valve (not shown) is formed in each of the horizontal portions 40a and 41a of 0 and 41, and a side hole 45 is formed from the horizontal passage 44 at a position just corresponding to the suction hole 43. Are formed.

Further, the suction holes 43 of the suction members 16 and 17
Of the suction holes 43a at both ends of the suction holes 43a
A blind pin 46 is arranged to shut off or open. Figure 8
As shown in, the blind pin 46 is slidably supported in a blind pin holder 47 fixed to the back side of the horizontal portion 40a of the opening / closing arm 40 (same for the opening / closing arm 41), and the tapered head portion 46a is attracted. The hole 43a abuts from the back side. A knob 48 having a convex portion 48a on the front side is fixed to the rear end of the blind pin 46, and a concave groove 47a into which the convex portion 48a is fitted is formed at the rear end of the blind pin holder 47. Incidentally, 49 is an O-ring.

The blind pin 46 is always urged forward by a compression spring 50 which is interposed between the blind pin holder 47 and the blind pin holder 47. As shown in FIG.
When 8a is fitted in the concave groove 47a, the head portion 46a of the blind pin 46 contacts the suction hole 43a by the urging force of the compression spring 50, and the suction hole 43a is blocked from the horizontal passage 44 (that is, from the vacuum source). On the other hand, the knob 48 has a compression spring 50.
Pulling and twisting against the urging force of the
8a is removed from the groove 47a, the head portion 4 of the blind pin 46 is removed.
6a is retracted to open the suction hole 43a to the horizontal passage 44 (that is, to the vacuum source), and this state is maintained by the urging force of the compression spring 50. By blocking or opening the suction hole 43a by the blind pin 46, as shown in FIG. 7, it becomes possible to deliver bags having bag width dimensions L _{1 to} L ₂ .

As shown in FIGS. 2 and 3, the opening / closing arm 40 is provided.
The vertical portion 40b of the slide bearing 5 is attached to the slide shaft holder 52.
Upper slide shaft 54 supported slidably horizontally via 3
And is slidably supported by the lower slide shaft 55 via a guide bush 56 fitted in the elongated hole 40c (see FIG. 7). In addition, the vertical portion 41b of the opening / closing arm 41
Is fixed to a lower slide shaft 55, which is also slidably supported horizontally on a slide shaft holder 52 via a slide bearing 53, and slides upward via a guide bush 57 fitted in an elongated hole 41c. The shaft 54 is slidably supported. Further, in the sliding shaft holder 52, the upper and lower sliding shafts 5
A pinion gear 58 is arranged in the middle of the gears 4, 55, which mesh with rack gear portions 54a, 55a formed on the upper and lower sliding shafts 54, 55.

As shown in FIGS. 3 and 5 to 6, a pair of slide rails 60 fixed on the box-shaped frame 34.
A slide member 61 is slidably installed on the slide member 62, and a slide frame 62 is fixed on the slide member 61. A substantially cylindrical pinion gear holder 63 is horizontally fixed to the vertical portion 62a of the slide frame 62, and the sliding shaft holder 52 is fixed to the tip thereof. Further, the shaft portion 64 of the pinion gear 58 is rotatably supported inside the pinion gear holder 63 via a bearing, and the end portion of the shaft portion 64 (sliding shaft holder 52
The rocking lever 65 is fixed to the opposite side), and the upper end of the elevating rod 67 is connected to one end of the swing lever 65 via a connecting portion 66. When the lifting rod 67 moves up and down, the swing lever 6
5, the pinion gear 58 rotates via the shaft portion 64, and the opening / closing arms 40 and 41 (adsorption members 16 and 17) open and close (approach / separate from each other).

One end of a connecting rod 70 is connected to the slide frame 62 via a connecting portion 69. A fulcrum shaft 73 is rotatably supported by a bearing member 72 fixed to the box-shaped frame 34 via a mounting block 71, and a substantially triangular swing lever 74 is fixed to the fulcrum shaft 73 at its apex. , The other end of the connecting rod 70 is connected to one of the right and left apex portions via the connecting portion 75, and the upper end of the lifting rod 77 is connected to another apex portion via the connecting portion 76. The elevating rod 77 extends into the lower machine base 32, is connected to a drive source (not shown), and ascends and descends at a predetermined timing. Along with this, the pinion gear holder 63, the sliding shaft holder 52, and the opening / closing arms 40 and 41 (adsorption members 16 and 17) advance and retreat in the horizontal plane via the swing lever 74, the connecting rod 70, the slide frame 62, and the like. It is like this. The transmission mechanism including the drive source and the raising / lowering rod 77 or the opening / closing arms 40 and 41 for transmitting the driving force to the suction members 16 and 17 corresponds to the reciprocating means in the present invention.

As shown in FIGS. 9 to 10, the lifting rod 6
The lower end of 7 is rotatably connected to one end of an intermediate lever 80 via a connecting portion 79. The intermediate lever 80 is fixed at its intermediate portion to a fulcrum shaft 82 rotatably supported by a bearing member 81 attached to the machine base 32, and at the other end thereof, an upper end of an intermediate connecting rod 84 is connected via a connecting portion 83. The lower end of the intermediate connecting rod 84 is rotatably connected to one end of a cam lever 86 via a connecting portion 85. The cam lever 86 has an intermediate portion fixed to a fulcrum shaft 88 rotatably supported by a bearing member 87 attached to the machine base 32, and a cam roller 89 rotatably attached to an arm 86a protruding from the intermediate portion. , On the other hand, cam lever 8
A mounting shaft 90 is fixed to the other end of 6, and a tension spring 9 is
1 engages and urges and presses the cam roller 89 toward the peripheral surface of the opening / closing cam 93 fixed to the drive shaft 92 that continuously rotates at a constant speed by a drive source (not shown).

Further, a roller 94 is rotatably mounted on the mounting shaft 90, and the stand 9 installed in the vicinity thereof.
5, an air cylinder 96 is fixed, and a pressing member 97 is attached to the tip of the piston rod. Figure 9
As shown in (b), when the pressing member 97 is located above the swing range of the roller 94 (inoperative state), the cam roller 89 rolls along the peripheral surface of the opening / closing cam 93 and the cam lever 86 is driven. Then, when the air cylinder 96 operates and the pressing member 97 pushes the roller 94 downward, the cam roller 89 is separated from the circumferential surface of the opening / closing cam 93 against the biasing force of the tension spring 91, and the cam lever 86 is driven. It is released and held at the position set by the air cylinder 96. A transmission mechanism including the driving source and the opening / closing cam 93 for transmitting the driving force to the suction members 16 and 17, the vertical sliding shafts 54 and 55, the air cylinder 96, etc. corresponds to the opening / closing means in the present invention, and the cam roller. A mechanism such as the air cylinder 96 for releasing the driven state of 89 corresponds to the switching means in the present invention.

When the pressing member 97 is in the upper position, that is, when the switching means is maintained in the non-operating state, the cam roller 89 causes the cam roller 89 to open and close as the opening and closing cam 93 rotates.
The cam lever 86 oscillates following the peripheral surface of, and the driving force thereof is transmitted to the elevating rod 67 via the intermediate connecting rod 84, the intermediate lever 80, and the like. Further, the pinion gear 58 reciprocally rotates via the swing lever 65 and the shaft portion 64, and the opening / closing arms 40 and 41 (adsorption members 16 and 17) open and close (approach / separate from each other). This opening / closing is performed at the same timing as the movement in the horizontal plane and the swing of the chuck 15 of the first delivery device 13.

When the bag W delivered by the bag delivery device 4 is a gusset bag, the switching means is maintained in the inoperative state. In this case, the timing of opening and closing the suction members 16 and 17 is set as follows, for example. (1) When the chuck 15 holds the bag W and ascends to reach the delivery position (the position of the bag W at that time is shown by an imaginary line W ₁ in FIG. 2), the cam roller 89 causes the opening / closing cam 92 to have a small diameter. Portion to the large diameter portion, and the suction members 16 and 17 that have already retracted and arrived at the receiving position are closed (bag W
And simultaneously adsorb both sides of the bag W). (2) Subsequently, the chuck 15 is opened to open the bag W, and the suction members 16 and 17 are advanced from the receiving position to the delivering position. During this movement, the cam roller 89 rolls from the large diameter portion of the opening / closing cam 92 toward the small diameter portion. As a result, the suction members 16 and 17 are opened, and the bag W suctioned thereto is also opened. (3) When the suction members 16 and 17 reach the delivery position (the position of the bag W at that time is shown by an imaginary line W ₂ in FIG. 2),
The gripper 18 of the intermittent rotation rotary type filling device 1, which was waiting there, is closed and the four side edge portions of the bag W are held. (4) Subsequently, the suction members 16 and 17 are opened to the atmosphere, the gripper 18 rotates, and the suction members 16 and 17 are retracted to the receiving position with the suction members 16 and 17 open.

When the bag W to be delivered by the bag delivery device 4 is a flat bag or the like, the switching means is operated from when the suction members 16 and 17 are moving to after reaching the delivery position. While in the operating state, the follower of the cam lever 86 with respect to the opening / closing cam 93 is released, and the opening / closing of the suction members 16 and 17 is determined by the position of the cam lever 86 set by the air cylinder 96. More specifically, during the operating state, the position of the cam lever 86 is held at the position corresponding to the large diameter portion of the opening / closing cam 92, and the suction members 16 and 17 maintain the closed state. In this case, the timing of opening and closing the suction members 16 and 17 is set as follows, for example.

(1) When the chuck 15 grips the bag W and ascends to reach its delivery position, the cam roller 89 rolls from the small diameter portion of the opening / closing cam 92 toward the large diameter portion and has already retracted and received. The suction members 16 and 17 that have been in the position are closed (the bag W is received, and at the same time, both surfaces of the bag W are sucked). (2) Then, after the chuck 15 is opened to open the bag W,
The suction members 16 and 17 advance from the receiving position to the delivery position. At this time, the air cylinder 96 is operated to release the follower of the cam lever 86 (while the opening / closing cam 92 is rotating at a constant speed), the position of the cam lever 86 is held at the position corresponding to the large diameter portion of the opening / closing cam 92. To be done. Therefore, the suction members 16 and 17 remain closed while advancing. (3) When the suction members 16 and 17 reach the delivery position, the gripper 18 waiting there is closed and the two side edge portions of the bag W are sandwiched. (4) Subsequently, the suction members 16 and 17 are opened to the atmosphere, and at the same time, the operation of the air cylinder 96 is stopped and the pressing member 97 is raised. As a result, the cam roller 89 again contacts the peripheral surface (small diameter portion) of the opening / closing cam 92, the cam lever 86 returns to the position corresponding to the small diameter portion, and the suction members 16 and 17 open. As the gripper 18 rotates, the suction members 16 and 17 are retracted to the receiving position while the suction members 16 and 17 are open.

[0030]

According to the present invention, in the bag delivery device of the type that receives the bag from the device of the previous process and delivers the bag to the gripper of the next device, it can be used for both supply of gusset bags and supply of flat bags, And both can be reliably and stably supplied.

[Brief description of drawings]

FIG. 1 is an overall plan view of a gas displacement packaging machine equipped with a bag delivery device according to the present invention.

FIG. 2 is a partial cross-sectional right side view of the bag delivery device according to the present invention (the side of the conveyor magazine bag supply device is the front).
Is.

FIG. 3 is a partial cross-sectional plan view thereof.

FIG. 4 is a front sectional view mainly showing a first delivery device.

FIG. 5 is a right side sectional view mainly showing the reciprocating means of the suction member of the second delivery device.

FIG. 6 is a front sectional view mainly showing the opening / closing means of the suction member of the second delivery device.

FIG. 7 is a front view showing a suction surface of a suction member of the second delivery device.

FIG. 8 is a sectional side view of the blind pin portion.

FIG. 9 is a front sectional view (a) and a left side sectional view (b) showing the opening / closing means of the suction member of the second delivery device.

FIG. 10 is a right side sectional view showing opening / closing means of the suction member of the second delivery device.

[Explanation of symbols]

4 bag delivery device 13 First delivery device 14 Second delivery device 15 chuck 16, 17 Adsorption member 18 gripper 20 swing arm 24 air cylinders 26 fulcrum axis 38 Lifting rod 40, 41 open / close arm 42 adsorption block 43 Suction hole 46 blind pin 54, 55 Sliding shaft 58 pinion gear 62 slide frame 67 Lifting rod 70 Connecting rod 74 Swing lever 77 Lifting rod 80 Intermediate lever 84 Intermediate connecting rod 86 Cam lever 89 Cam roller 90 mounting shaft 93 Open / close cam 94 Laura 96 air cylinder 97 Pressing member

Claims (5)

[Claims] 1. A pair of suction members for sucking a bag from both sides and holding it vertically, an opening / closing means for opening and closing the pair of suction members with each other, a position for receiving the pair of suction members and a gripper of the next device. A reciprocating means for horizontally reciprocating between the delivery positions to and from, the opening / closing means closes the pair of suction members at the receiving position, and then opens the suction members again at a predetermined timing. A bag delivery device, wherein it is possible to select whether the suction member moves from the receiving position to the delivery position or after the suction member reaches the delivery position. 2. The bag delivery device according to claim 1, wherein the opening / closing means includes a switching means for performing the selection in a part of a transmission mechanism thereof. 3. The opening / closing means includes a cam rotating at a constant speed as a part of a transmission mechanism and a cam lever driven by the cam, the driven of the cam lever with respect to the cam is released by the operation of the switching means, and the cam lever is It is designed to be displaced to the position set by the switching means,
3. The timing for opening the suction member is selected depending on whether the switching means is kept in the non-operating state or is operated at a predetermined timing.
Bag delivery device described in. 4. The pair of suction members have flat suction surfaces that oppose each other, and a plurality of suction holes are arranged on the suction surface along the width direction of the bag. 4. A bag delivery according to any one of claims 1 to 3, characterized in that a blind pin that blocks or opens this suction hole is arranged at least for one suction hole end in the width direction. apparatus. 5. The bag delivery device further includes a pair of sandwiching members for sandwiching both side edge portions of the bag, an opening / closing means for opening and closing the pair of sandwiching members, the pair of sandwiching members at a bag receiving position, and A reciprocating rocking means for rocking back and forth between the transfer positions to the suction member is provided, and the sandwiching member makes the bag vertical at the transfer position, and transfers the bag to the suction member at the receiving position there. The bag delivery device according to any one of claims 1 to 4.