JP4087348B2 - Automatic filling device for packaged items in packaging bags - Google Patents

Description

  The present invention is applied to an automatic packaging machine such as a linear reciprocating packaging machine, and two chambers folded in two on a packaging bag held in a horizontal position by a grip pair of the automatic packaging machine The present invention relates to an automatic filling device for filling a packaged article such as a mold infusion bag.

  As a packaged item, for example, the medical synthetic resin two-chamber infusion bag shown in FIG. 8 has a substantially rectangular shape and a flat shape when viewed from the plane. The partition part formed in the direction is folded in two and then filled and packaged in a packaging bag.

  However, since the operation of filling the packaging bag with the two-chamber infusion bag folded in two is performed manually, the packaging efficiency is low, which is a factor preventing complete automatic packaging. ing.

In an automatic packaging machine, filling a packaging bag with a small and light plastic tray for holding a packaging form of an article to be packaged such as food is performed. However, no device has been found for automatically filling a packaging bag such as a two-chamber infusion bag of an unstable form folded into two with a capacity of about 500 to 1000 cc, and its development is desired. It was.
JP-A-8-26218 Japanese Patent Publication No. 7-80481

  The objective of this invention is providing the automatic filling apparatus which can perform efficiently the operation | work which fills the packaging bag in the form of the two-chamber type infusion bag etc. folded in two.

In order to achieve the above-mentioned object, the invention described in claim 1 is provided on the downstream side of the first conveyor means for intermittently transferring the objects to be packaged by driving and rotating a conveyor belt having a horizontal conveying surface by a first motor device. A plurality of conveyor belts arranged in parallel at predetermined intervals are driven and rotated by a second motor device to support a frame of a conveyor unit for transferring an object to be packaged by the horizontal axis, and the horizontal axis is operated by a pneumatic cylinder. Is disposed between the conveyor belts in the same direction as the transfer direction of the package by the second conveyor means. has been a comb-like pushing means in a freely advancing and retracting the support member by a slide mechanism, a controlled advancing and retracting movement, the bag mouth of the packaging bag to wait in a horizontal position in the filling position On the other hand, a pair of side guide members that can be inserted with their tips narrowed during advancement, and a stopper piece arranged so as to correspond to the rear end portion of the package to be sequentially supplied onto the support member of the pushing means, A stopper provided to follow the forward movement of the support member and to be restrained by the stopper piece so that an object to be packed filled in the packaging bag does not come back and jump out of the packaging bag when the support member is retracted. It means provided, wherein the first conveyor means to supply the packed material to the conveyor unit of the second conveyor means, downstream location of the conveyor by lowering the front end side of the conveyor by operation of the pneumatic cylinder the packaged articles which are transported to placed on a support member of the pushing means, draft by the side guide members to be packaged by the forward movement of the support member Characterized by being configured to fill in the packaging bag while.

In order to achieve the same object, the invention described in claim 2 is the automatic filling device for a package to be packed in the packaging bag according to claim 1, wherein the package has a substantially rectangular shape when viewed from above. The infusion bag is characterized in that it has at least a partition wall that divides the two chambers and is folded in two at the partition wall.

(Invention of Claim 1)
This automatic filling device for packing articles into the packaging bag can automatically and efficiently perform the work of filling the packaging bag into the packaging bag in a stable state .

(Invention of Claim 2)
According to the automatic filling device for an article to be packed in the packaging bag, the operation of filling the packaging bag into the infusion bag folded in two can be performed automatically without manual operation. This can greatly contribute to the realization of fully automatic packaging of the seed infusion bag.

  The best mode of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view of an automatic filling device for an object to be packaged into a packaging bag, FIG. 2 is a front view of the device shown broken along line AA in FIG. 1, and FIG. 3 is a part of FIG. FIG. 4 is an explanatory view of the second conveyor means and its peripheral part, FIG. 5 is a plan view of the intermediate conveyor means, FIG. 6 is an explanatory view of the pushing means, FIG. 7 is an explanatory view of the stopper means, and FIG. FIG. 9 is an explanatory view of a two-chamber type infusion bag (a product to be packaged), and FIG. 9 is an explanatory view showing a state in which the infusion bag folded in two is filled in a packaging bag.

  The “automatic filling device F for packaging material into a packaging bag” shown in FIG. 1 includes a first conveyor means 15, a second conveyor means 25, a pushing means 55, a side guide member 75 and a stopper means 80. The target is a medical two-chamber infusion bag (hereinafter simply referred to as “infusion bag”) as an article to be packaged.

  As shown in FIG. 8, the infusion bag 1 is formed into a flat rectangular shape by heat-sealing four sides with a thick synthetic resin film superimposed, and the capacity of the two chambers 1a and 1b is as follows. Differently, it is partitioned by a partition wall portion 4 extending in the short (width) direction. The infusion bag 1 is provided with a plug 7 at one end 2 in the short direction and a plug 8 at the other end 3, and is filled with a predetermined amount of drug solution from an automatic injection device. And the infusion bag 1 handled here is made into the horizontal attitude | position in the state folded in two by the partition part 4.

  In the automatic filling device F of the packaged article into the packaging bag, the infusion bag 1 folded into two and placed in a horizontal posture is the set position (a) of the packaged object on the first conveyor means 15 from the previous step. Automatically supplied.

  As for the first conveyor means 15, a drive shaft 17 is rotatably provided at a rear end portion 16 a of the conveyor frame 16 fixed in the horizontal direction at the center of the main body frame 11, and three drive pulleys 18 are provided on the drive shaft 17. Are fixed at predetermined intervals. Reference numeral 19 denotes a first motor device installed on the conveyor frame 16. The first motor device 19 is provided so as to intermittently rotate the drive shaft 17. Three pulleys 21 are rotatably provided on the fixed shaft 20 provided at the front end portion 16b of the conveyor frame 16 so as to correspond to the drive rolls 18 respectively. Reference numeral 22 denotes a conveyor belt that is stretched around the drive pulley 18 and the pulley 21. Here, a known attach conveyor belt in which the protrusions 22a are arranged at regular intervals is used.

  Thus, the first conveyor means 15 is configured to rotate the attached conveyor belt 22 with the conveying surface horizontal by the first motor device 19.

  As for the second conveyor means 25, as shown in FIG. 1, a horizontal shaft 27 in which three drive pulleys 28 are fixed to bearings 26, 26 provided on the horizontal rod 12 of the main body frame 11 at a predetermined interval. The frame 32 is supported on the horizontal shaft 27 through bearings 31 and 31 so as to be swingable. A sprocket 29 is fixed to one end of the horizontal shaft 27. A chain 35 is stretched between the sprocket 29 and the sprocket 3 fixed to the output shaft of the second motor device 33 installed on the conveyor frame 16.

On one side of the frame 32, three arms 37 which pulley 38 is provided freely rotatable to the tip 37a is disposed at a predetermined distance, the conveyor section 30 to their pulleys 38 and said drive pulley 28 A plurality of conveyor belts 39 constituting the belt are respectively stretched at predetermined intervals (FIG. 4). The arm 40 on the other side of the frame 31 is connected to the rod 41a side of a pneumatic cylinder 41 attached to the main body frame 11 on the head side (FIG. 2).

Thus, the swingable vertically on the horizontal axis 27 by the operation of the distal end side pneumatic cylinder 41 of the conveyor 30 for continuously rotating the conveyor belt 39 to the horizontal conveying surface by the second motor unit 33 as a fulcrum second conveyor means 25 is constructed with. As shown in FIG. 1, the second conveyor means 25 is linearly arranged on the downstream side of the first conveyor means 15 as viewed from above.

  45 is an intermediate conveyor means interposed between the first conveyor means 15 and the second conveyor means 25. In this intermediate conveyor means 45, two sprockets 47 are freely provided at predetermined intervals on a fixed shaft 46 provided at a position below the conveyor frame 16 of the first conveyor means 15. A conveyor belt 51 is stretched over the sprocket 47, the two sprockets 49 fixed to the horizontal shaft 27, and the two intermediate sprockets 50 provided rotatably on the fixed shaft 20. (FIG. 5).

  Thus, by rotating the conveyor belt 51 simultaneously with the rotation operation of the horizontal shaft 27, the infusion bag 1 conveyed from the first conveyor means 15 can be relayed and transferred to the second conveyor means 25 in a stable state. Intermediate conveyor means 45 is configured.

  As for the pushing means 55, as shown in FIGS. 1 and 3, a pair of left and right rail members 57, 57 each having a rail 57a arranged on the main body frame 11 so as to extend in the same direction as the transfer direction t of the article to be packaged. The sliders 59, 59 of the slide base 58 are loosely fitted to the rail members 57, 57, respectively, so that the slide base 58 is slidable. The rail members 57, 57 and the slide base 58 constitute a slide mechanism 56. On the slide base 58, four comb-like support members 60 are arranged in parallel at the same interval, their tip ends 60a protrude forward, and the upper surfaces 60b of the respective conveyor belts of the second conveyor means 25 are provided. It is provided so as to be slightly lower than the transport surface 39. Further, the two support members 60 at the center are interposed between the conveyor belts 39 of the second conveyor means 25.

  In FIG. 6, one end 62 a of a rod 62 is connected to one slider 59 of the slide base 58. The other end 62 b of the rod 62 is connected to a tip end portion of a lever 65 that is freely swingable by a shaft 64 supported by a bearing 63 fixed to the main body frame 11. Reference numeral 68 denotes a bifurcated lever which can be freely swung by a shaft 67 supported by a bearing 66 fixed to the main body frame 11, and a tip portion of a vertically oriented lever piece 68a and an intermediate portion of the lever 65 are rods. 69 are connected. A cam follower 70 is attached to a substantially intermediate position of the other lateral lever piece 68b. The cam follower 70 is provided so as to be pressed against the outer peripheral surface of the circular cam 71 by the elastic force of the spring 72. The circular cam 71 is attached to a rotating shaft 74 supported by a bearing 73 fixed to the main body frame 11.

  Thus, the circular cam 71 is driven and rotated by a drive source (not shown) to swing the bifurcated lever 68, and the movement is transmitted to the rod 62, whereby the support member 60 can be moved forward and backward through the slide mechanism 56. The pushing means 55 is configured.

  2 is arranged near the front end side 60a of the support member 60 of the pushing means 55 at the filling position (b) of the article to be packaged shown in FIG. 2, and the forward and backward movements are controlled by a known drive mechanism (not shown). It is a pair of left and right side guide members provided. The side guide member 75 can be inserted into the bag mouth c of the packaging bag b that is retracted at the front end and waits in a horizontal posture when moving forward.

  As shown in FIGS. 2 and 3, the stopper means 80 has a pair of guide bars 82, 82 attached vertically to brackets 80 a, 80 b provided on the main body frame 11, and a slide member attached to the guide bars 82, 82. The protrusion 83a of 83 is loosely fitted and the slide member 83 is slidably provided. A pneumatic cylinder 85 with the rod 85a facing downward is attached to the upper bracket 80a, and the rod 85a is connected to the upper end of the slide member 83. Accordingly, the slide member 83 is provided so as to be movable up and down by the operation of the pneumatic cylinder 85.

  A moving member 87 is provided integrally with a front end plate 89 to which the stopper piece 90 is fixed and a pair of guide bars 88 and 88 arranged in parallel with the rear end plate 91 in which the longitudinal groove 92 is formed. As shown in FIG. 3, the moving member 87 is provided so as to be freely movable in the horizontal direction by loosely fitting guide bars 88, 88 to the protrusion 83 b of the slide member 83.

  In FIG. 7, the longitudinal groove 92 of the moving member 87 is slidably engaged with a distal end portion 96a of a lever 96 which is freely swingable by a shaft 95 supported by a bearing 94 fixed to the main body frame 11. Yes. The protrusion 96b of the lever 96 is connected to the other end of a link 98, one end of which is connected to a lever 97 which is freely swingable by the shaft 63. Reference numeral 101 denotes a lever supported by the shaft 67 so as to freely swing. A cam follower 102 is attached to the lever 101 at a substantially intermediate position, and the other end 103b of the rod 103 having one end 103a connected to the tip 101a is attached to the connecting portion of the lever 97 and the link 98. The cam follower 102 is provided so as to be pressed against the outer peripheral surface of the circular cam 105 attached to the rotating shaft 74 by the elastic force of the spring 106.

  Accordingly, the circular cam 105 is driven and rotated by a drive source (not shown) to swing the lever 101, and the movement is transmitted to the rod 103 to swing the lever 96. At the same time, the pneumatic cylinder 85 is operated. By moving the slide member 83, the stopper piece 90 arranged so as to correspond to the rear end portion of the infusion bag 1 sequentially supplied onto the support member 60 of the pushing means 55 follows the forward movement of the support member 60. In addition, stopper means 80 is configured to stop the infusion bag 1 filled in the packaging bag b by the stopper piece 90 so that the infusion bag 1 does not come back from the packaging bag b when the support member 60 is retracted.

Next, the operation of the automatic filling device F for an article to be packaged into the packaging bag of the present invention will be described.
(1) In the first conveyor means 15, the infusion bag 1 folded in two and placed in a horizontal posture on the attach conveyor belt 22 at the set position (b) of the package is automatically supplied sequentially from the previous step. When the first motor device 19 is intermittently driven, the attach conveyor belt 22 rotates to intermittently transfer the infusion bag 1 toward the conveyor section 30 of the second conveyor means 25 downstream.
(2) When the infusion bag 1 is relayed and transferred by the intermediate conveyor means 45 and reaches the downstream position of the conveyor section 30, the operation of the pneumatic cylinder 41 of the second conveyor means 25 causes the front end side of the conveyor section 30 to be It descends with 27 as a fulcrum. Thereby, the infusion bag 1 is placed on the support member 60 of the pushing means 55.
(3) In the push-in means 55, the support member 60 is moved forward by transmitting the swing motion of the bifurcated lever 68 by the circular cam 71 constantly driven to rotate to the rod 62. At the filling position (b) of the article to be packaged, the side guide member 75 squeezes the tip and waits in a horizontal posture so as to synchronize with the forward movement of the support member 60. Inserted.
(4) Further, the stopper piece 90 of the stopper means 80 arranged so as to correspond to the rear end portion of the infusion bag 1 follows the forward movement of the support member 60, and the infusion bag 1 placed on the support member 60 is packaged. The back end of the infusion bag 1 is brought into contact with the stopper piece 90 so that the infusion bag 1 is not filled back when the bag b is filled and the support member 60 is retracted. FIG. 9 shows a state where the infusion bag 1 is filled in the packaging bag b.
(5) Next, the support member 60 of the pushing means 55 is retracted to the original position, and the stopper piece 90 of the stopper means 80 is also retracted to the original standby position. At this time, the front end side of the conveyor section 30 of the second conveyor means 25 is raised to the original position with the horizontal shaft 27 as a fulcrum by the operation of the pneumatic cylinder 41, and has returned to the state of receiving the subsequent new infusion bag 1. .

  By repeating the series of operations shown in (1) to (5) above, the infusion bag 1 folded in two is held in a horizontal posture with the vertical edge d held between grip pairs of a packaging machine (not shown). Are automatically filled sequentially at a rate of about 25 pieces per minute.

  As described above, the automatic filling device for a package in a packaging bag automatically fills the packaging bag with a relatively heavy package such as an infusion bag folded in two. There is an advantage that can be done efficiently.

Top view of automatic filling device for packaged items in packaging bags FIG. 1 is a front view of the same device broken along line AA in FIG. 1 is a longitudinal sectional view of a part of FIG. Explanatory drawing of the second conveyor means and its periphery Plan view of intermediate conveyor means Explanatory drawing of pushing means Explanation of stopper means Illustration of two-chamber type infusion bag (packaged item) Explanatory drawing which shows the state which filled the packaging bag with the infusion bag folded in two

Explanation of symbols

F: Automatic filling device for packaging material in a packaging bag (A): Setting position of packaging material (B): Filling position of packaging material 1: Infusion bag (packaging material)
DESCRIPTION OF SYMBOLS 15 ... 1st conveyor means 19 ... 1st motor apparatus 22 ... Attached conveyor belt (conveyor belt)
25 ... second conveyor means 27 ... horizontal axis 30 ... conveyor section 32 ... frame 33 ... second motor device 39 ... conveyor belt 41 ... pneumatic cylinder 55 ... Pushing means 56 ... slide mechanism 60 ... support member 80 ... stopper means 90 ... stopper piece b ... packaging bag c ... bag mouth

Claims (2)

A plurality of conveyor belts arranged in parallel at predetermined intervals are provided on the downstream side of the first conveyor means for driving and rotating a conveyor belt having a horizontal conveying surface by a first motor device to intermittently transfer an object to be packaged. The frame of the conveyor unit that is driven and rotated by the two-motor device is supported by the horizontal axis, and the front side of the conveyor unit can be swung up and down with the horizontal axis as a fulcrum by the operation of the pneumatic cylinder. The second conveyor means is arranged , and a comb-like support member interposed between the conveyor belts in the same direction as the transfer direction of the package by the second conveyor means can be moved forward and backward by a slide mechanism. And a pair of pushing means that are controlled in forward and backward movements and that can be inserted with the leading end retracted against the bag mouth of the packaging bag waiting in a horizontal position at the filling position. A side guide member and a stopper piece arranged so as to correspond to the rear end portion of the article to be packaged sequentially supplied onto the support member of the push-in means follow the forward movement of the support member, and in the packaging bag Stopper means provided so as to be stopped by the stopper piece so that the filled article to be packed does not come back out of the packaging bag when the support member is retracted, and the article to be packaged by the first conveyor means is provided . On the support member of the pushing-in means, the article to be packaged is supplied to the conveyor section of the second conveyor means and moved down to the downstream side of the conveyor section by lowering the front end side of the conveyor section by the operation of the pneumatic cylinder. The packaging bag is filled while being guided by the side guide member by the forward movement of the support member. Automatic filling device to be packaged into the packaging bag to be. The packaged article is an infusion bag in a state of being substantially rectangular when viewed from above and having a partition wall portion that divides at least two chambers and folded in two at the partition wall portion. The automatic filling apparatus of the to-be-packaged object to the packaging bag of Claim 1 to do.

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