JP2006199338A - Bag-opening apparatus for packaging machine for granular powder such as seed unhulled rice - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simply and easily perform to open a packaging bag with gas permeability. <P>SOLUTION: This bag-opening apparatus has a constitution in which a fixed plate 30a and a movable plate 30d are provided on the tip side of a stretching/contracting working cylinder mechanism 12, and a net bag 10 hooked on a hook-and-loop fastener 30d by bringing the hook-and-loop fastener 30d at the tip into contact with the net bags piled up into a plurality of sheets from the upper part side, is moved to a bag-opening part 4. In the bag-opening part 4, on the side facing a bad-gripping mechanism 13, a second bag-gripping mechanism 28 for opening the net bag by working in the reverse direction to the bag-gripping mechanism 13, is provided, and after opening, the net bag is pinched and held by the left and right bag-holding mechanism 30, to move the pinched and held net bag to a filling part. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  TECHNICAL FIELD The present invention relates to a bag opening device for a powder packaging machine such as a seed meal.

Conventionally, as a bag opening device of a granular material packaging machine, a bag mouth is provided above and below the first and second holding plates that are slidably opposed to each other with the bag mouth interposed therebetween, and the bag mouth is gripped in the up and down direction. The third and fourth clamping plates are configured so that the bag mouth is gripped by the vertical approach of the first and third clamping plates and the vertical approach of the second and fourth clamping plates. There is a configuration in which opening is performed by separating them (Patent Document 1).
Japanese Patent Laid-Open No. 11-130019

  However, since the opening portion of the thin bag that hangs down in the vertical direction with the opening portion up is gripped by the sandwiching plate approaching the top and bottom, the latching action of the bag surface on the end surface of the sandwiching plate is weak, so the gripping action is reliable. In addition, the configuration is complicated by requiring a cylinder, a piston rod, and the like.

The present invention eliminates the above-described drawbacks and attempts to open the bag mouth with a simple configuration.
For this reason, the invention according to claim 1 fixes the fixed plate (15) to the distal end side of the extending and retracting working cylinder mechanism (12) and elastically urges the fixed plate (15) outward. A movable plate (16) that is held in a state of being provided is provided, and a bag holding mechanism (9) provided with a hook-and-loop fastener (19) at the tip of the movable plate (16) constitutes the bag holding mechanism (9). Move the mesh bag (10), which is pressed from the upper side of the mesh bag (10, 10 ...) stacked on the plurality of sheets and secured by the hook-and-loop fastener (19) to the bag opening (4) in the engaged state. The mesh bag (10) is engaged with the hook-and-loop fastener (27) on the side facing the bag holding mechanism (9) in the bag opening (4), and operates in the opposite direction to the bag holding mechanism (9). Thus, a second bag holding mechanism (28) for opening the mesh bag (10) is provided. Configuration to the seeds or the like granular material packing machine of the bag opening apparatus comprising Te.

  By configuring in this way, one of the mesh bags stacked on the bag holder is hooked and held by the hook-and-loop fastener (19) of the bag holding mechanism (9), and the second is approached from the other side. The bag is held by a hook-and-loop fastener (27) of the bag holding mechanism (28) and opened by the separating operation.

  According to a second aspect of the present invention, in the first aspect of the present invention, the mesh bag (10) opened in the bag opening (4) is fastened by the hook-and-loop fasteners (19, 27) of the bag holding mechanism (9, 28). A pair of pinch holding portions (30, 30) acting on the left and right opening edges of the bag holding mechanism (9, 28) provided with hook-and-loop fasteners (19, 27) are provided. ) And the mesh bag (10) held open to move toward the granular material filling part (5).

  A pinch holder (30, 30) acts on the mesh bag (10) attached to the hook-and-loop fastener (19, 27) to hold the bag opening edge, and in this state is filled with granules. Move to part (5). At this time, the hook-and-loop fasteners (19, 27) are left in that position, so that they are peeled off from the mesh bag (10) and released.

  In the invention according to claim 1, one of the net bags (10) stacked on the bag holder (3) is hooked and held by the hook and loop fastener (19) of the bag holding mechanism (9), Since it engages with the hook-and-loop fastener (27) of the second bag holding mechanism (28) approaching from the other side and opens by the separation operation, the surface is compared with the one that grips and opens the bag edge. Since the fasteners (19, 27) are engaged by pressure contact, the holding action is reliable.

  Further, according to the invention described in claim 2, in addition to the above-mentioned effect, the net bag (10) opened by the hook-and-loop fastener (19, 27) is sandwiched and held. It is possible to simplify the process by eliminating a dedicated process for peeling the surface fasteners (19, 27).

  The opening of the air-permeable packaging bag is easily and easily opened using a hook-and-loop fastener (Magic Tape (registered trademark)) that can be easily removed by one-touch fastening.

  The figure shows a packaging machine 1 that packs seeds into a breathable bag. The packaging machine 1 has a bag holder 3 located on the far left side of the frame 2, a bag opening 4 in front of it, a frame 2 comprises a seed vat filling portion 5, a lower bag folding portion 6, a sewing machine portion 7, a carry-out portion 8, and the like.

  Of the above, the bag holder 3 and the bag opening 4 will be described. The bag holding mechanism 9 holds the net bags 10, 10... The bag holding mechanism 9 includes a working shaft 11, a cylinder mechanism 12 provided integrally with the working shaft 11, a holding portion 13 provided at the tip of the piston portion 12 a of the cylinder mechanism 12, and the working shaft 11. It consists of an operating cylinder mechanism 14 that reciprocates at an angle. The gripping portion 13 is configured by providing a pair of a fixed plate 15 and a movable plate 16 at the tip of the cylinder mechanism 12, that is, by fixing a rectangular fixed plate 15 at the tip of the piston portion 12a of the cylinder mechanism 12, The fixed plate 15 is provided with a movable plate 16 with a pair of left and right guide pins 17 and 17 and coil springs 18 and 18 interposed therebetween. The guide pin 17 is fixed to the movable plate 16 side, and a coil spring 18 is fitted into the guide pin 17 so that the end of the guide pin 17 passes through the large-diameter opening 15a of the fixed plate 15, and a washer 17b and a lock nut are attached to the end of the guide pin 17. The movable plate 16 is supported by the fixed plate 15 by mounting 17c. Therefore, the movable plate 16 remains substantially parallel to the fixed plate 15 when there is no external pressure, and the angle with respect to the fixed plate 15 can be changed when receiving a predetermined pressure, and the direction opposite to the fixed plate 15 side. Further, the elastic force of the coil springs 18 and 18 is applied. A hook-and-loop fastener 19 is attached to the outer surface of the movable plate 16 so as to act on a side surface of the net bag 10 which is a resin net structure and can be attached and detached. The length of the hook-and-loop fastener 19 may extend over the entire width of the movable plate 16 or may be divided.

  The operating shaft 11 is provided in the vicinity of the boundary between the bag holder 3 and the bag opening 4 so as to be rotatable in a horizontal posture by front and rear bearing portions 20, 20, and a link 21 is provided at one end of the shaft 11. The actuating cylinder mechanism 14 is connected via a via. In the posture in which the working cylinder mechanism 12 is directed vertically downward, the cylinder mechanism 12 has a relationship of being disposed correspondingly above the net bags 10, 10... Stacked on the bag holder 3 (FIG. 4 (1)). Is extended and shortened, the net bag 10 is arranged and configured to be able to be lifted by being locked by the hook-and-loop fastener 19.

  When an operating cylinder mechanism 14 is connected to one end of the operating shaft 11 via a link 21 that constitutes a crank link together with the shaft 11, and the cylinder mechanism 14 is shortened, the operating shaft 11 is shown by an arrow ( B) A configuration in which the mesh bag 10 rotated and locked in the direction can be lifted (FIG. 4 (2)). The cylinder mechanism 14 is operated in a predetermined manner, and the operating shaft 11 is rotated by an angle of 90 degrees at the maximum to change the operating cylinder mechanism 12 to a substantially horizontal posture (FIG. 4 (3)).

  An actuating cylinder mechanism 26 configured in the same form as the actuating cylinder mechanism 12 described above and having a stationary plate 22 and a movable plate 23 at the tip thereof with a guide pin 24 and a coil spring 25 interposed therebetween at a position facing the actuating cylinder mechanism 12. Is extended to the left and right and provided in a configuration that can be shortened. Similar to the movable plate 16, a surface fastener 27 is attached to the outer surface of the movable plate 23, and the second bag holding mechanism includes the operating cylinder mechanism 26, the fixed / movable plates 22, 23, the surface fastener 27, and the like. 28 (FIG. 5).

  The mesh bag 10 that is held open by the opening holder 29 is moved from the bag opening 4 to the seed vat filling unit 5. That is, a pair of pinch holding portions 30 and 30 that act on the left and right opening edges of the net bag 10 opened by the bag holding mechanism 9 and the second bag holding mechanism 28 from the upper side, and these pinch holding portions 30 and 30. Elevating cylinder mechanisms 31 and 31 etc. are provided for moving up and down separately. The pinch holding portion 30 includes an outer receiving portion 30a fixed to a block 31a provided integrally with the elevating cylinder mechanism 31 and formed with a concave portion 30b, and a rod-shaped convex portion 30c facing the receiving portion 30a and fitting into the concave portion 30b. The inner movable portion 30d is provided, and the inner movable portion 30d is attached to the tip of a piston portion 32a penetrating the block 31a and the outer receiving portion 30a, and a pinch holding cylinder mechanism 32 including the piston portion 32a, The opening edge is sandwiched and held by the shortening operation 32, and is opened by the extension operation.

  The upper ends of the piston portions of the elevating cylinder mechanisms 31 and 31 are connected to the blocks 31b and 31b. These blocks 31b and 31b are connected to the left and right by the connecting shaft 33, and rollers 33a and 33b are provided at the ends of the connecting shaft 33 so It is configured to be able to move on the rails 34a and 34b. This moving distance depends on the number of forward and reverse rotations by a non-illustrated control motor, and is configured to be able to come and go to the soot filling portion 5 in the next stroke.

  The seed soup filling unit 5 includes a vibrating conveyor 36 under the seed soup hopper 35 that fills the seed soup, and the end of the vibrating conveyor 36 is seen through the weighing hopper 37. The unillustrated weighing control unit is configured to stop the vibration conveyor 36 when the predetermined weighing value is reached and to open the gates 38 and 38 of the weighing hopper 37. Under the gates 38, 38, seed soy can be supplied to the net bag 10 waiting downward via the relay hopper 39 and the chute 40.

  The net bag 10 filled with a predetermined amount extends and operates the pinch holding cylinder mechanism 32 to release it from holding by the pinch holding unit 30, receives the weight by the belt conveyor 8a as the carry-out unit 8, and transfers it to the lower conveyance side. It is a configuration to be. The upper part of the net bag 10 placed on the belt conveyor 8a is put on a pipe-like member (not shown) to form a bag folding part 6 that is folded in half by the jet of compressed air from an air jet nozzle (not shown). . And in the middle of the carrying-out part 8, the sewing machine part 7 which hangs the half-folded net bag 10 is constituted. Note that the end of the carry-out portion 8 is provided in an open state at the rear portion of the frame.

  The operation of the above example will be described. When the seed hopper 35 is filled with the seed hopper 35 in advance and an appropriate number of net bags 10, 10... Are set in the bag holder 3, and each part of the packaging machine 1 is driven, the operating cylinder mechanism 14 is oriented so that the operating cylinder mechanism 12 is vertical. Acting to a posture, the working cylinder mechanism 12 is extended and operated in this posture. The fixed plate 15 and the movable plate 16 move downward, and a hook-and-loop fastener 19 provided on the lower surface of the movable plate 16 is pressed against and engaged with the uppermost net bag 10 of the set net bags. When the actuating cylinder mechanism 12 is shortened to lift the mesh bag 10 and the actuating cylinder 14 is extended to rotate the actuating shaft 11 via the link 21, the actuating cylinder mechanism 12 is moved in its longitudinal direction. Is rotated by about 90 degrees from the vertical posture in which it faces downward and is changed to a substantially horizontal posture.

  The working cylinder mechanism 26 of the second bag holding mechanism 28 is made to act on the net bag 10 in the suspended posture in accordance with the change in the posture of the working cylinder mechanism 12 so as to face the fixed / movable plates 15 and 16. The fixed / movable plates 22 and 23 are brought close to each other, and the hook-and-loop fastener 27 of the movable plate 23 is brought into pressure contact with the net bag 10 and engaged. As described above, the mesh bag 10 whose upper left and right sides are engaged by the hook-and-loop fasteners 19 and 27 is opened by shortening the operation cylinder mechanisms 12 and 26, respectively.

  In the opened state, the open state of the net bag 10 is taken over by the clip portions 30, 30 of the opening holder 29, and is moved along the rail 32 to the seed holder filling portion 5 from the bag opening portion 4 to the opening holder 29. To do.

  In the seed soup filling unit 5, the seed soy that is sequentially supplied to the seed soup hopper 35 is fed out and packaged at predetermined intervals. That is, the seeds in the seed hopper 35 can be supplied to the weighing hopper 37 along with the driving of the vibration conveyor 36, and when the predetermined metric value set in advance by the weighing hopper 37 is reached, the driving of the vibration conveyor 36 is turned off. It is set and weighed arbitrarily in the range of 3kg to 6kg. When the weighing hopper 37 is weighed in a predetermined amount, the gates 38 are opened, and the weighing seeds are fed out via the relay hopper 39 and the chute 40 and supplied to the net bag 10 waiting downward.

The net bag 10 is unloaded by the conveyor of the unloading unit 8 through the upper half folding process and the sewing process.
By the way, the seed pods are nurtured as rice seedlings that are sown in a seedling facility and transplanted to a paddy field, and the following treatment is performed prior to the sowing. In other words, sterilization treatment to remove seed pods and branch stems, seed selection processing to select enriched seed pods from the sterilized seed pods, disinfection treatment to sterilize / sterilize / sterilize the selected seed pods, seed selection / disinfection These are the soaking process in which the seed pods are immersed in relatively low temperature water to facilitate germination, and the sprouting process in which the seed pods are soaked in warm water at a temperature that promotes germination of the soaked seed pods. After the seed selection, the net bags 10, 10... Are packed, and the following disinfection, seeding, and germination processes are performed in the net bag 10 state (Japanese Patent Laid-Open No. 2003-23815).

  In addition, the seeds packed in the packaging machine 1 as described above are subjected to the disinfection a, the soaking b, and the germination c in the seed pretreatment process before sowing. It is stored in the warehouse L for a long time. That is, the seed pods that have been subjected to the defatting process and the seed selection process are subdivided into net bags 10, 10. Each voucher has a configuration in which a slip k on which classification items such as a product type, a weight, a processing date, etc. are printed is enclosed, and this voucher sealing device is arranged and configured to be executed after filling the bag of the bag filling machine 1 It is said. These are stored in a rack warehouse L in which a predetermined number of mesh bags are packed in a cardboard box D or the like and the temperature and humidity can be adjusted. In storing the rack warehouse L in this way, a slip that outputs the product type, weight, processing date, consignee, etc. is enclosed or attached to each interior or surface side of the subdivided net bag 10 at a later date. It is intended to facilitate the handling. In addition, when a bag of seed varieties of the same type or the like is packed and stored in the cardboard box D, an IC tag T is set at a predetermined position of the cardboard box D and individual information on the stored seed pods is input. . By comprising in this way, there exists an effect which can make the target selection at the time of taking out through long-term storage easy and quick.

Side view of packaging machine Top view of packaging machine Exploded perspective view of holding part (1)-(3) Action explanatory view of bag holding mechanism (1) (2) Operation explanatory diagram of the second bag holding mechanism Front view of pinch holder Side view of pinch holder Process flow diagram of seed bag filling net bag

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Packing machine 2 Frame 3 Bag storage part 4 Bag opening part 5 Seed filling part 9 Bag holding mechanism 10 Net bag 11 Actuation shaft 12 Actuation cylinder mechanism 13 Holding part 14 Actuation cylinder mechanism 15 Fixed plate 16 Movable plate 17 Guide pin 18 Coil spring DESCRIPTION OF SYMBOLS 19 Surface fastener 20 Bearing part 21 Link 22 Fixed plate 23 Movable plate 24 Guide pin 25 Coil spring 26 Actuation cylinder mechanism 27 Surface fastener 28 Second bag holding mechanism 29 Opening holding part 30 Clamping holding part 31 Lifting cylinder mechanism 32 Clamping holding cylinder mechanism 33 Connecting shaft 34 Rail 35 Type hopper 36 Vibration conveyor 37 Weighing hopper 38 Gate 39 Relay hopper 40 Chute

Claims (2)

  The fixed plate (15) is fixed to the distal end side of the operating cylinder mechanism (12) that expands and contracts, and the movable plate (16) that is held in a state of being elastically urged outward with respect to the fixed plate (15). And a bag holding mechanism (9) provided with a hook-and-loop fastener (19) at the tip of the movable plate (16), and the bag holding mechanism (9) is a plurality of mesh bags (10, 10) 10...), And the mesh bag (10) pressed from the upper side and engaged with the hook-and-loop fastener (19) is moved to the bag opening (4) in the engaged state, and the bag is opened at the bag opening (4). The mesh bag (10) is engaged with the hook-and-loop fastener (27) on the side facing the holding mechanism (9), and the mesh bag (10) is opened by operating in the opposite direction to the bag holding mechanism (9). Bag opening of seed and sour powder packaging machine provided with second bag holding mechanism (28) Location.   A pair of pinch holding portions that are engaged with the left and right opening edges of the opened net bag (10) by being hooked by the hook-and-loop fasteners (19, 27) of the bag holding mechanism (9, 28) in the bag opening portion (4). (30, 30), and the pinch holding part (30, 30) is powdered together with the mesh bag (10) that is held open, leaving the bag holding mechanism (9, 28) provided with the hook-and-loop fastener (19, 27). The bag opening device of a seed and sour powder packaging machine according to claim 1, wherein the bag opening device is configured to move toward the granule filling part (5).

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