JP2007055652A - Packaging bag pick-up device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging bag pick-up device for surely picking up stacked and stored packaging bags one by one. <P>SOLUTION: This packaging bag picking up device is provided with a bag storing part 3 for storing a plurality of packaging bags in a stacked state, a tilt driving mechanism 10 for tilting the storing part 3 by a tilt cylinder 18 and an adsorption pick-up mechanism 13 which has a suction member 12 whose end has a suction cup 11 for contacting the front face of the bag for picking up the bag adsorbed by the suction cup of the suction member 12. After the suction cup of the adsorption pick-up mechanism adsorbs the front face of the bag, the bag storing part is tilted by the tilt driving mechanism and air is introduced between the bag adsorbed and the next bag. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a packaging bag take-out device for storing packaging bags, such as nylon plastic bags, in a state where they are stacked in a bag storage unit and taking out the bags one by one from here.

A conventional apparatus for stacking a large number of bags and taking out one bag at a time from this is a stocker unit that supplies a large number of packaging bags on a belt conveyor, and one end abuts or is close to the stocker unit. There has been proposed a packaging bag supply device including a feeding belt provided obliquely (see Patent Document 1).
JP-A-10-194238

  However, since the above-described conventional packaging bag supply device adopts a configuration in which the packaging bag is fed out by a feeding belt, in the case of a packaging bag such as a nylon plastic bag, the bag itself is weak and rubbed against the feeding belt. In some cases, such problems as bending or entanglement, or the supply of a plurality of bags in an overlapped state occur.

  The present invention has been proposed in view of the above, and an object of the present invention is to provide a packaging bag take-out device that can reliably take out packaging bags that have been stacked and stored one by one.

The present invention has been proposed in order to achieve the above-described object, and the one described in claim 1 is a bag storage section capable of storing a plurality of packaging bags in a stacked state,
A tilting drive mechanism for tilting the bag body reservoir,
A suction pick-up mechanism having a suction member with a suction cup in contact with the surface of the bag body, and picking up the bag body sucked by the suction cup of the suction member;
After the suction cup of the suction pick-up mechanism is adsorbed on the surface of the bag body, the bag body storage portion is tilted by the tilt drive mechanism, and air is introduced between the adsorbed bag body and the next bag body. This is a packaging bag takeout device characterized in that it is configured as described above.

The thing of Claim 2 is the bag body storage part which can store a plurality of packaging bags in a lamination state,
A suction pick-up mechanism having a suction member with a suction cup in contact with the surface of the bag body, and picking up the bag body sucked by the suction cup of the suction member;
A tilt drive mechanism for tilting the suction member of the suction pickup mechanism;
After the suction cup of the suction pick-up mechanism is adsorbed on the surface of the bag body, the bag body adsorbed by the suction cup is tilted with respect to the bag body storage portion by the tilt drive mechanism, and the adsorbed bag body and the next A packaging bag take-out device characterized in that air is introduced between the bag and the bag.

According to a third aspect of the present invention, baffles are provided on both sides of the bag body storage portion at a predetermined height from the bag placement surface of the bag body storage portion at intervals smaller than the width of the bag body,
The bag body is adsorbed by the sucker that is lowered within the interval between the baffles on both sides, and when the bag body is raised, both side portions of the bag body that are located outside the portion where the sucker is adsorbed are in sliding contact with the baffle. It is a packaging bag body taking-out device according to claim 1 or 2 characterized by things.

  According to a fourth aspect of the present invention, there is provided the packaging bag take-out device according to the first aspect, wherein the tilt driving mechanism tilts in a direction in which the rear portion of the bag body storage portion is lowered.

  5. The packaging apparatus according to claim 2, wherein the bag body storage unit can store a plurality of packaging bag bodies in a stacked state with the front side higher than the back side. This is a bag take-out device.

  According to the first aspect of the present invention, after the suction cup of the suction pickup mechanism is adsorbed on the surface of the bag body, the tilting drive mechanism tilts the bag body adsorbed on the suction cup with respect to the bag body storage portion, Since air is introduced between the adsorbed bag body and the next bag body, even if the bag body is a flexible bag body made of a soft sheet material, The next bag body is easy to peel off, and the inconvenience of taking out the bag body in a stacked state can be prevented.

  According to the invention described in claim 2, after the suction cup of the suction pickup mechanism is adsorbed on the surface of the bag body, the tilting drive mechanism tilts the bag body adsorbed on the suction cup with respect to the bag body storage portion, Since air is introduced between the adsorbed bag body and the next bag body, the bag body is a flexible bag body made of a soft sheet material, as in the first aspect of the invention. However, the next bag body is easily peeled off from the bag body adsorbed by the suction cup, and the inconvenience of taking out the bag body in a stacked state can be prevented. And since it is not necessary to incline the bag body stored in the bag storage part each time, a lamination | stacking state is hard to disturb and positioning of a bag body is easy.

  According to the invention described in claim 3, the baffles are provided on both sides of the bag body storage portion at a predetermined distance from the bag placement surface of the bag body storage portion at intervals smaller than the width of the bag body. Since the bag body is adsorbed by the suction cup lowered within the interval of the baffle, and when the bag body is raised, both side portions of the bag body located outside the portion where the suction cup is adsorbed are in sliding contact with the baffle. The bag body to be taken out is mechanically squeezed by the baffle, so that overlapping of the bag bodies can be prevented more reliably.

  According to the invention of claim 4, since the tilting drive mechanism tilts in the direction of lowering the rear part of the bag body storage part, it can be stored with the mouth of the bag body facing forward, and the subsequent bagging step Good workability. Moreover, since the rear part of the bag body in which the mouth is not opened is lowered, it is possible to prevent the mouth from opening and air being introduced into the bag body, and separation from the next bag body can be ensured.

  According to the fifth aspect of the present invention, the bag body storage unit stores the plurality of packaging bag bodies in a stacked state with the front side higher than the back, so that the bag body stored in the stacked state is easily stabilized.

  The best mode for carrying out the present invention will be described below with reference to the drawings. 1 is an explanatory view of a bag filling auxiliary device 2 incorporating a packaging bag body taking-out device 1, FIG. 2 is a right side view of the packaging bag body taking-out device 1, and FIG. FIG. 4 is a plan view of the bag body storage unit 3 of the packaging bag body take-out device 1.

  First, an outline of the bag filling auxiliary device 2 will be described. The bag filling auxiliary device 2 takes out one bag of a packaging body such as a nylon plastic bag one by one, and transfers the taken bag body to the bag filling stage 4 and transfers it to the bag filling stage. A device in which an automatic opening device 5 for automatically opening a bag mouth of a packaging bag and a hopper insertion / removal device 7 for inserting / removing a hopper 6 into / from the opened bag mouth are combined on the base 8 and integrated. In addition, the devices operate in cooperation with each other under the control of a control device (not shown) provided in the base 8, thereby assisting the operator in bagging.

  The packaging bag body take-out device 1 includes a bag body storage portion 3 that can be stored in a state where a plurality of packaging bag bodies are stacked, a tilt drive mechanism 10 that tilts the bag body storage portion 3, and a surface of the bag body. It has a suction member 12 provided with a suction cup 11 in contact with the tip, and is schematically constituted by a suction pickup mechanism 13 that picks up a bag body sucked by the suction cup 11 of the suction member 12.

  As shown in FIGS. 2 to 4, the bag body storage unit 3 is a rectangular plate-shaped or pallet-shaped member that is larger than the bag body. In this embodiment, the bag body is bent by bending the four sides of the stainless steel plate downward. Downward side wall portions 15 are formed on the four sides of the mounting surface 14, and the front end (front side) portion of the left and right side wall portions 15 can be tilted to the upper end of the support stay 16 erected from the base 8 by the left and right shafts 17. In addition, the center of the lower surface is connected to the rod of the tilt cylinder 18 provided vertically on the base 8 as the tilt drive mechanism 10 and is installed in a state supported by the tilt cylinder 18. Yes. Therefore, in the state where the rod of the tilt cylinder 18 is extended, as shown by the solid line in FIG. 2, the bag body placement surface 14 of the bag body storage portion 3 can be stopped while maintaining the first state. When the rod of the tilt cylinder 18 is contracted, as shown by a two-dot chain line in FIG. 2, the back side (rear part) of the bag body storage part 3 is inclined lower than the front side (front part). Can be converted to The tilting cylinder 18 is always stopped in a state where the rod is extended due to the bias of the spring, and the first state of the bag body storage unit 3 is maintained.

Further, a stopper 20 for positioning the rear end of the stored bag body is provided on the rear portion of the upper surface of the bag body storage portion 3 so that the front and rear positions can be adjusted along the guide groove 21. The baffle plate 22 is provided as a baffle at an interval narrower than the width of the guide plate 23 so that the position of the baffle plate 22 can be adjusted in the horizontal direction along the guide groove 23. Therefore, the positions of the stopper 20 and the baffle plate 22 can be appropriately adjusted according to the size of the bag body, and the positions can be fixed with a set screw or the like.
Note that the baffle plate 22 shown in the drawing has a standing wall standing upward from a fastening portion that stops at a portion of the guide groove 23, and the upper end of the standing wall is located at the left and right center side of the bag body storage portion 3, that is, horizontally. It is bent in the direction, and the leading edge of this bent piece is a slidable contact portion 24 that slidably contacts the bag body. Therefore, the sliding contact portion 24 of the baffle plate 22 is disposed at a distance slightly narrower than the width of the bag body at a position separated by a predetermined height from the bag placement surface of the bag body storage portion 3.

Next, the suction pickup mechanism 13 will be described.
The suction lifting mechanism 13 has a substantially portal upright portion 25 standing from the back of the base 8, and a cantilevered carriage 26 is provided on the upright portion 25 so as to protrude forward. A guide rail (not shown) is provided on the upper portion of the upright portion 25, the carriage 26 can be moved in the left-right direction along the guide rail, and a lift cylinder 27 is provided at the tip (front) portion of the carriage 26. A substantially rectangular lifting member 29 that is guided downward by the guide portion 28 and moves up and down by driving the lift cylinder 27 is provided, and is provided with two rod-like portions at four corners of the lifting member 29, that is, at the front portion and the rear portion. The suction members 12 are suspended, and suction cups 11 are provided downward at the tips (lower ends) of the suction members 12 and connected to pressure reduction mechanisms (not shown) such as vacuum pumps. It is constructed by connecting a distal end of the trachea.
The guide portion 28 of the elevating member 29 includes a guide cylinder 28a provided on the carriage 26 side, and a guide rod 28b penetrating in the vertical direction in the guide cylinder 28a. The guide rod 28b is moved up and down by being guided by the guide cylinder 28a. By doing so, the elevating member 29 can be moved up and down in the vertical direction. Therefore, when the lift cylinder 27 is operated, the suction members 12 can be moved up and down all at once without being inclined. When the elevating member 29 is lowered, the suction cup 11 at the lower end of each suction member 12 can be brought into almost simultaneous contact with the surface of the uppermost bag body in the laminated state. When the adsorption member 12 is raised in this adsorption state, the bag body can be taken up from the bag body storage unit 3.

  In the present embodiment, when the bag body is raised, in detail, the bag body is adsorbed by the suction cup 11 lowered within the interval between the baffle plates 22, and immediately thereafter or simultaneously, the tilt cylinder 18 is operated by the control of the control device. Thus, the bag body storage part 3 is converted from the horizontal first state to the second state in which the back side is inclined obliquely downward. When the bag body storage unit 3 is tilted in this way, air is easily introduced between the bag body adsorbed by the suction cup 11 and the next bag body, that is, the uppermost bag body to be left in the bag body storage unit 3. Thus, it is possible to prevent a problem that the next bag body is lifted in a state where it is attached to the bag body adsorbed to the suction cup 11. In addition, in the present embodiment, when the baffle reservoir 3 is provided with the baffle plate 22 and the suction cup 11 is lowered within the interval between the baffle plates 22 on both sides to adsorb the bag body, the bag body is raised. Both side portions of the bag located outside the suctioned portion of the suction cup 11 are configured to be in sliding contact with the sliding contact portion 24 of the baffle plate 22. Therefore, even if the next bag body is lifted with the bag body adsorbed to the suction cup 11 due to static electricity or the like, both side portions of these bag bodies slide between the sliding contact portions 24 of the left and right baffle plates 22. As a result, both sides of the bag are overlapped, and a gap is formed between the overlapping bag bodies, and air enters the gap and the bag bodies are peeled off. For this reason, the bag body adsorbed by the suction cup 11 continues to rise and is taken out, while the next bag body that has been squeezed and separated by the baffle plate 22 falls by its own weight and is stacked in the bag body storage unit 3. It is returned to the bag body.

  As described above, in the present embodiment, the bag body storage portion 3 is inclined to facilitate the entry of air between the bag body adsorbed by the suction cup 11 and the next bag body, but the present invention is limited to this. Instead, the bag body adsorbed by the suction cup 11 may be inclined with respect to the next bag body to create a state in which air easily enters between the two bag bodies.

  That is, it has a bag body storage portion 3 that can store a plurality of packaging bag bodies in a stacked state, and a suction member 12 that is provided with a suction cup 11 in contact with the surface of the bag body, and the suction cup 11 of the suction member 12. After the suction pick-up mechanism 13 for picking up the bag body adsorbed by the above and the tilt drive mechanism 10 'for tilting the suction member 12 of the suction pick-up mechanism 13, the suction cup 11 of the suction pick-up mechanism 13 is adsorbed on the surface of the bag body. By tilting the driving mechanism 10 ', the bag body adsorbed by the suction cup 11 is tilted with respect to the bag body storage portion 3, and air is introduced between the adsorbed bag body and the next bag body. It may be configured.

  For example, as shown in FIG. 5, the bag body storage portion 3 ′ is provided in a fixed state in which the back side is inclined downward, and the subordinate ascending / descending mechanism 29 ′ is moved below the elevating member 29 as the tilting drive mechanism 10 ′ for tilting the suction cup 11 of the suction pickup mechanism 13 The member 30 is provided so as to be swingable in the front-rear direction about the left and right axis 31, and the upper and lower ends of the tilt drive cylinder 32 are connected between the lift member 29 and the sub lift member 30. In the first state in which the auxiliary lifting member 30 is inclined in accordance with the inclination of the bag body storage portion 3 by the action of the drive cylinder 32 (the posture in which the suction cup 11 in the front is higher than the suction cup 11 in the back), the auxiliary lifting member 30 is substantially You may comprise so that it may convert into the 2nd state (the front suction cup 11 and the back suction cup 11 are the same height) located horizontally.

  In this manner, the bag sucked by the suction cup 11 by the tilting drive mechanism 10 after the suction cup 11 in front of the suction pick-up mechanism 13 and the suction cup 11 in the back are sucked to the surface of the bag body in the first state of different heights. When the body is tilted with respect to the bag body storage portion 3 to be converted into the second state and air is easily introduced between the bag body adsorbed by the tilting motion and the next bag body, the above-described embodiment Similarly, the next bag body is easily separated from the bag body adsorbed by the suction cup 11. Further, when the baffle plate 22 is provided in the same manner as in the above embodiment, the separation can be performed more reliably.

In addition, according to this embodiment, since the bag storage part 3 stores a plurality of packaging bags in a stacked state with the front side higher than the back, the bag is stored when the bag body is stacked with the mouth of the bag facing forward. The back of the body tilts downward and hits the stopper 20 so that the laminated state is not easily collapsed, the bag body can be easily positioned, and the suction cup 11 can be adsorbed at a set position to increase the reliability of removal.
In the above embodiment, the bag body is stored with the mouth facing forward, and the rear portion of the bag body is lowered or raised so that air is easily introduced between the two bag bodies. In order to facilitate the introduction of air into the bag, the configuration is not limited to the configuration in which the rear portion of the bag body is lowered or raised. What is necessary is just to descend | fall or raise in any of three sides except the opening | mouth of the bag body. This is because separation by air introduction cannot be achieved if the bag mouth adsorbed by the suction cup is opened.

It is explanatory drawing of the bagging auxiliary | assistance apparatus incorporating the bag extraction apparatus for packaging, (a) is the front view, (b) is a left view, (c) is a top view. It is a right view of the packaging body taking-out apparatus. It is a front view of the packaging bag taking-out device. It is a top view of the bag storage part of the bag extraction apparatus for packaging. It is a right view of the packaging bag take-out device for tilting the adsorbing member of the adsorbing / pickup mechanism with the bag storing portion fixed.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bag removal apparatus for packaging 2 Bag filling auxiliary device 3 Bag storage part 4 Bag filling stage 5 Automatic opening device 6 Hopper 7 Hopper insertion / removal device 8 Base 10 Tilt drive mechanism 11 Suction cup 12 Adsorption member 13 Adsorption removal mechanism 14 Bag Body mounting surface 15 Side wall portion 16 Support stay 17 Shaft 18 Tilt cylinder 20 Stopper 21 Guide groove 22 Baffle plate 23 Guide groove 24 Slide contact portion 25 Upright portion 26 Carriage 27 Lift cylinder 28 Guide portion 29 Lift member 30 Sub lift member 31 shaft 32 tilt drive cylinder

Claims (5)

A bag body storage section capable of storing a plurality of packaging bags in a stacked state; and
A tilting drive mechanism for tilting the bag body reservoir,
A suction pick-up mechanism having a suction member with a suction cup in contact with the surface of the bag body, and picking up the bag body sucked by the suction cup of the suction member;
After the suction cup of the suction pick-up mechanism is adsorbed on the surface of the bag body, the bag body storage portion is tilted by the tilt drive mechanism, and air is introduced between the adsorbed bag body and the next bag body. A packaging bag take-out device, characterized in that it is configured as described above. A bag body storage section capable of storing a plurality of packaging bags in a stacked state; and
A suction pick-up mechanism having a suction member with a suction cup in contact with the surface of the bag body, and picking up the bag body sucked by the suction cup of the suction member;
A tilt drive mechanism for tilting the suction member of the suction pickup mechanism;
After the suction cup of the suction pick-up mechanism is adsorbed on the surface of the bag body, the bag body adsorbed by the suction cup is tilted with respect to the bag body storage portion by the tilt drive mechanism, and the adsorbed bag body and the next A packaging bag take-out device, wherein air is introduced between the bag and the bag. Provided on both sides of the bag body storage portion with a baffle spaced a predetermined height away from the bag placement surface of the bag body storage portion at an interval narrower than the width of the bag body,
The bag body is adsorbed by the sucker that is lowered within the interval between the baffles on both sides, and when the bag body is raised, both side portions of the bag body that are located outside the portion where the sucker is adsorbed are in sliding contact with the baffle. The packaging bag take-out device according to claim 1 or 2.   The packaging bag take-out device according to claim 1, wherein the tilt driving mechanism tilts the rear portion of the bag storing portion in a descending direction. The packaging bag body take-out device according to claim 2, wherein the bag body storage unit can store a plurality of packaging bag bodies in a stacked state with a front side higher than a back side.

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