JP2011173643A - Opening apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an opening apparatus achieving efficient operation at a low cost. <P>SOLUTION: The opening apparatus includes holding means (bag stocker 100) for piling up and hold a plurality of long packing bags (chopstick bag 150), urging means (spring 300) for urging the plurality of long packing bags held with the holding means in the piling-up direction, opening means (opening claw 201) for forming a space so that a predetermined long object can be inserted from an opening in a state that the end of the opening means is inserted into the opening, and driving means (electric motor 600 or the like) for advancing and retreating the opening means relative to the opening and for bringing the end of the opening means into press-contact with the long packing bags, when the opening means advances into the opening and to release pressing and contacting at a retreated end position. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an opening device for opening an opening of a long packaging bag such as a chopstick bag.

  Conventionally, disposable chopsticks as a kind of long object are loaded in a thin chopsticks bag made of paper (an example of a long packing bag).

  By the way, in general restaurants, recently, plastic chopsticks that can be used repeatedly (hereinafter referred to as “plastic chopsticks”) due to concerns about the cost reduction of disposable disposable chopsticks and concerns about the unstable supply status of disposable chopsticks in the near future. ”) Is starting to operate.

  On the other hand, some restaurants that use plastic chopsticks may provide plastic chopsticks in a chopstick bag in order to eliminate concerns about the customer's hygiene regarding the plastic chopsticks that are provided bare.

  However, the actual situation is that the plastic chopsticks are packed manually by employees at each store.

  In particular, in busy izakaya stores such as in downtown areas, the number of plastic chopsticks prepared in advance has risen to a considerable number, and there has been a problem that it takes time to pack the bags.

  For example, it takes about one and a half hours to manually pack 500 to 600 bags, depending on the ability of the operator.

  In order to reduce the labor and time for chopping chopsticks, techniques for improving the efficiency of chopping stuffing have been developed.

  For example, Japanese Utility Model Application Laid-Open No. 5-42108 discloses an opening device for a square-cut chopstick bag that can efficiently perform a chopstick filling operation by opening an opening portion of the chopstick bag.

  This opening device has a structure that regulates the direction of compressed air and ejects it toward the front end of the square-cut chopstick bag, and the opening of the chopstick bag is surely secured until the opening plate tip is inserted into the square-cut chopstick bag. Opened to improve the efficiency of chopsticks.

Japanese Utility Model Publication No. 5-42108

  However, in the prior art, compressed air is indispensable, and a compressor or the like for generating this compressed air is necessary, which has the disadvantage of increasing the cost of the apparatus.

  The apparatus according to the prior art is efficient because it is equipped with a mechanism for automatically chopping chopsticks into an opened chopstick bag. On the other hand, the addition of an automatic stuffing mechanism makes the apparatus large, There was also a problem that it was difficult to introduce into traditional restaurants.

  The present invention is made from the above technical background, and provides an opening device capable of realizing the efficiency of the work of packing a long object into a long object packing bag with a low cost and a small configuration. The purpose is to do.

  In order to solve the above-mentioned problem, an opening device according to the invention of claim 1 is an opening device that opens the opening of a long packaging bag that is folded flat and has an opening at one end thereof, A holding means for laminating and holding the long packaging bag; a biasing means for biasing the plurality of long packaging bags held by the holding means in a laminating direction; Opening means for forming a space in which a predetermined long object can be inserted from the opening in a state where the leading end is inserted into the opening, and the opening is advanced and retracted with respect to the opening. In addition, the opening means includes a driving means that presses the distal end portion against the long packaging bag when the opening means enters the opening, and releases the pressure contact at the retracted end position.

  According to a second aspect of the present invention, in the opening device according to the first aspect, the holding means is urged in the laminating direction by the urging means and presses the stacked long packaging bag. The pressing plate includes at least a plate, and has an arrangement in which an end portion of the long packaging bag on the opening side is inclined in the anti-stacking direction and the other end portion protrudes in the stacking direction.

  According to a third aspect of the present invention, there is provided the opening device according to the first or second aspect of the present invention, wherein the holding means is a length on the front side of the long packaging bag at the end position in the stacking direction. A regulating portion is provided which is in contact with both end portions on the side and warps the central portion of the long packaging bag outward.

  According to a fourth aspect of the present invention, there is provided an opening device according to any one of the first to third aspects, wherein the predetermined long object is inserted into an end of the holding means. An operation switch that is on a passage line when the long packaging bag is extracted from the extraction port and that contacts the part of the long packaging bag to operate the driving means Is further provided.

  According to a fifth aspect of the invention, in the opening device according to the fourth aspect of the invention, when the operation switch is operated, the tip of the opening means is inserted into the opening of the long packaging bag. And a control means for controlling the drive means as one cycle of moving the tip portion backward to the front of the opening of the next long packaging bag and stopping thereafter. It is characterized by.

  An opening device according to a sixth aspect of the invention relates to the invention according to any one of the first to fifth aspects, wherein the opening means includes an opening claw having a wedge shape, and the opening claw is provided in the opening. When inserted, the predetermined long object is configured to be inserted into a space formed on the left and right along both side portions of the opening claw.

  An opening device according to a seventh aspect of the invention is characterized in that, in the invention according to the sixth aspect, a rounding process is applied to a tip portion of the opening claw.

  An opening device according to an eighth aspect of the present invention is the opening device according to the sixth aspect or the seventh aspect, wherein a surface of the opening claw facing the long packaging bag is subjected to a dent process. It is characterized by.

  An opening device according to a ninth aspect of the present invention relates to the invention according to any one of the sixth to eighth aspects, wherein the end of the open claw on the side where the elongated object enters is tapered. It is characterized by being.

  An opening device according to a tenth aspect of the invention relates to the invention according to any one of the first to ninth aspects, wherein the predetermined long article is inserted into the opening of the long article packaging bag. Further, a guide member for guiding the long object is further provided, and the guide member is formed with a guide groove that narrows along the insertion direction.

  According to the present invention, the following effects can be obtained.

  That is, according to the invention described in claim 1, it is possible to provide an opening device that can realize the efficiency of the work of packing a long object into a long object packing bag at a low cost and can be downsized. .

  In particular, when the opening means enters the opening, the tip is pressed against the long packaging bag, and the pressure contact is released at the retracted end position, so an excessive force is applied to the long packaging bag. The opening can be opened smoothly.

  Further, since compressed air is not used unlike the prior art, a device such as a compressor is unnecessary, the device cost can be reduced, and the entire device can be downsized.

  According to invention of Claim 2, since the edge part by the side of the opening part of a elongate packaging bag is inclined in the anti-laminating direction, the press plate has lost the laminated elongate packaging bag. In addition, it is possible to avoid a situation in which the tip of the opening means interferes with the pressing plate.

  In addition, since the other end of the pressing plate protrudes in the stacking direction, the end on the side opposite to the opening of the long packaging bag is pressed in the stacking direction to insert the long object. It is possible to facilitate the subsequent extraction work.

  According to invention of Claim 3, a holding means is contact | abutted to the both-sides edge part of the longitudinal direction of the front side of the elongate packing bag in the edge part position of a lamination direction, and the center part of a elongate packing bag Since the regulation part which warps outward is provided, the extraction work after inserting a long thing can be made still easier.

  According to invention of Claim 4, the operation switch which contacts a part of elongate packing bag and operates the said drive means on the passage line at the time of extracting a elongate packing bag from an extraction port is provided. Therefore, when performing the extraction work after inserting the long object, the operation switch is activated, and the driving means starts a series of operations for opening the opening of the next long object packing bag. And the working efficiency can be further improved.

  According to the fifth aspect of the present invention, when the operation switch is operated, the front end portion of the opening means is advanced so as to be inserted into the opening portion of the long packaging bag. Since the drive means is controlled with the operation of moving backward to just before the opening of the long product packaging bag and then stopping it as one cycle, the work of packing the long product into the long product packaging bag can be performed efficiently Can do.

  According to the invention described in claim 6, the opening means is provided with an opening claw having a wedge shape, and is formed on the left and right along both sides of the opening claw when the opening claw is inserted into the opening. Since it is configured to insert a predetermined long object into the space, the work of packing the long object into the long object packing bag can be performed more efficiently.

  According to the seventh aspect of the present invention, since the tip of the opening claw is rounded, the long packaging bag is prevented from being torn when the opening means enters the opening. Can do.

  According to the eighth aspect of the present invention, the surface of the opening claw facing the inner wall of the long packaging bag is recessed, so that the opening means is long when entering the opening. Friction with the product packaging bag is reduced, and a situation where the long product packaging bag is pushed out by the opening claw can be avoided.

  According to the ninth aspect of the present invention, since the end portion of the opening nail on the side where the long packaging bag enters is tapered, the long product is packed in the long packaging bag. Can be performed smoothly.

  According to the tenth aspect of the present invention, since the guide member is formed with the guide groove that narrows along the insertion direction, the work of packing the long object into the long object packing bag is performed more smoothly. be able to.

It is a perspective view which shows the external appearance of the front side of the opening device M which concerns on embodiment. It is a perspective view which shows the external appearance of the back side of the opening apparatus M which concerns on embodiment. It is explanatory drawing explaining the position adjustment of a bag stocker. It is explanatory drawing which shows the state in which the center part of a chopstick bag curves. It is a perspective view which shows the structure of a raising board. It is explanatory drawing which shows operation of a raising board. It is a side view which shows the state of the set chopstick bag. It is explanatory drawing which shows the structure of a starting switch. It is a perspective view which shows the structure of a mechanism part. It is explanatory drawing which shows the structure of an opening nail | claw. It is explanatory drawing which shows operation | movement of an opening nail | claw. It is explanatory drawing which shows operation | movement of an opening nail | claw. It is explanatory drawing which shows operation | movement of an opening nail | claw. It is explanatory drawing which shows operation of the opening apparatus M which concerns on embodiment. It is explanatory drawing which shows operation of the opening apparatus M which concerns on embodiment. It is explanatory drawing which shows operation of the opening apparatus M which concerns on embodiment. It is explanatory drawing which shows the state which sets a chopstick bag.

  Hereinafter, an embodiment as an example of the present invention will be described in detail with reference to the drawings. Here, in the accompanying drawings, the same reference numerals are given to the same members, and duplicate descriptions are omitted. In addition, since description here is the best form by which this invention is implemented, this invention is not limited to the said form.

  With reference to FIG. 1 to FIG. 17, an opening device M according to an embodiment of the present invention will be described.

  1 and 2 show the appearance of the opening device M according to the present embodiment.

  The opening device M is configured by mounting a bag stocker unit 100 (an example of a holding unit), a mechanism unit 200, and the like above the device main body 1.

  The apparatus main body 1 is provided with rubber feet 2 for improving stability and preventing slipping at the four corners of the lower surface of a metal or resin casing 1a.

  Further, on the right side surface in FIG. 1, a power switch 3 for turning on / off power to an electric motor or the like, which will be described later, of the mechanism unit 200 is provided.

  As shown in FIG. 2, a power fuse 4 and a circuit breaker 5 for interrupting excess current are provided on the back side of the apparatus main body 1.

  In the bag stocker unit 100, both short sides of the chopstick bag 150 (an example of a long packaging bag) to be held and side wall portions 100 a and 100 b that hold one long side stand up on the upper surface of the apparatus main body 1 with screws 101. It is fixed in the state.

  The side wall 100a can be adjusted in the direction of arrow A (see FIG. 3) through the long hole 120.

  The upper portions of the side wall portions 100a and 100b are in contact with both ends of the long side on the front side of the chopstick bag 150a at the end position in the stacking direction of the chopstick bags 150, and the center portion of the chopstick bag 150a is warped outward. Sections 130a, 130b, 130c, and 130d are provided.

  Due to the action of the restricting portions 130a, 130b, 130c, and 130d, a spring 300 (an example of an urging means) and a pressing plate 400, which will be described later, the central portion of the chopstick bag 150a is warped outward as shown in FIG. It becomes easy to carry out the extraction work after inserting chopsticks (such as plastic chopsticks) C (see FIG. 15) as a kind of long object into the bag 150a.

  The positions of the restricting portions 130c and 130d can be adjusted in the directions of arrows B and C (see FIG. 3) through the long holes 121 and the screws 103 formed in the upper portions of the side wall portions 100a and 100b. . Thereby, fine adjustment according to the width of the chopstick bag 150 can be performed.

  Further, in the present embodiment, two restricting portions are provided along both long sides of the chopstick bag 150, but a configuration in which one restricting portion is provided is also possible.

  The side wall 100a is formed with an extraction port 110 for extracting a chopstick bag 150a into which chopsticks (plastic chopsticks) C are inserted (see FIG. 3 and the like).

  Here, the configuration of the above-described pressing plate 400 will be described with reference to FIGS.

  In the present embodiment, the pressing plate 400 includes a pressing member 401 having an inclined portion 401a on the opening side of the chopstick bag 150 in the anti-stacking direction and an end portion protruding in the stacking direction of the chopstick bag 150. The pressing member 403 is provided.

  The pressing member 401 and the pressing member 403 are fixed using screws 402 and 404, respectively.

  The positions of the pressing member 401 and the pressing member 403 can be adjusted by loosening the screws 402 and 404 (the pressing member 403 is in the direction of arrow D as shown in FIG. 5). It can be adjusted (see FIG. 5).

  Then, when the stacked chopstick bags 150 are lost due to the inclined portion 401a of the pressing member 401, the situation where the distal end portion 201a of the opening claw 201 (an example of the opening means) and the pressing plate 400 interfere with each other is avoided. Can do.

  Since the pressing member 403 protrudes in the stacking direction, the end of the chopstick bag 150 opposite to the opening 155 (see FIG. 15 and the like) is pressed in the stacking direction so that the chopsticks (plastic chopsticks, etc.) C It is possible to facilitate the extraction work after the insertion.

  Further, in the present embodiment, the pressing plate 400 is integrally formed with the upright and descending portion 410 by bending a predetermined metal plate.

  Further, the upper end of the protrusion / lowering portion 410 is folded back in the horizontal direction to form an operation portion 410a.

  In addition, a slide member 420 is fixed below the protruding and descending portion 410. The slide member 420 is provided with two slide holes 420a drilled in the up and down direction.

  The slide hole 420a is inserted into a pair of slide shafts 500 standing on the upper surface of the apparatus main body 1 so as to be freely raised and lowered.

  The pressing plate 400 is connected to the spring 300 via the belt member 301 (see FIG. 2), and an urging force is applied in the stacking direction of the chopstick bag 150.

  When a plurality of chopstick bags 150 are set in the bag stocker unit 100, as shown in FIG. 6, the operation unit 410a is pushed down in the direction of arrow E against the urging force. Then, the pressing plate 400 formed integrally with the operation portion 410a and the protrusion / lowering portion 410 is also lowered in the arrow F direction.

  Next, while the lowering state of the pressing plate 400 is maintained, the plurality of chopstick bags 150 are pushed in the direction of the arrow G (see FIG. 17), and then the manual operation of the operation unit 410a is released.

  As a result, the chopsticks bag 150 is set on the bag stocker unit 100 in a stacked state, and is held in a state of being pressed upward by the urging force of the pressing plate 400.

  When setting the chopstick bag 150, care should be taken that the opening 155 of the chopstick bag 150 comes to the opening claw 201 side described later.

  Thereby, in the uppermost chopstick bag 150a, the lower surface of the opening claw 201 is held with the chopstick bag 150a in contact.

  The chopstick bag storage capacity of the bag stocker unit 100 is not particularly limited. For example, when the height of the bag stocker unit 100 is 70 mm, about 300 or more chopstick bags 150 having a thickness of 0.2 mm are stored. be able to.

  Further, as shown in FIG. 7, in the state where the chopstick bag 150 is stacked and set on the bag stocker unit 100, the pressing member 403 of the pressing plate 400 protrudes in the stacking direction. Since the end 156 opposite to the 155 is pressed in the stacking direction and is warped upward, the extraction work after inserting the chopsticks (such as plastic chopsticks) C becomes easy.

  Further, when the chopstick bag (plastic chopsticks) C is packed into the chopstick bag 150 and the stacked chopstick bags 150 are lost, the inclined portion 401a of the pressing member 401 presses against the tip portion 201a of the opening claw 201. The situation where the plate 400 interferes is avoided.

  Next, an operation switch SW that operates an electric motor 600 as drive means described later will be described with reference to FIG.

  The operation switch SW includes a limit switch main body 250 including a switching arm 250a, a detector 251 that is operated by being engaged with the switching arm 250a, and the like (FIG. 8A).

  The detector 251 is supported by the rotating shaft 251a and is rotatable.

  The detector 251 of the operation switch SW is configured to be positioned on a passing line when the chopstick bag 150a is extracted from the extraction port 110.

  Thus, when performing the extraction operation after inserting the chopsticks (plastic chopsticks, etc.) C, a part of the chopsticks bag 150 is actuated by contacting the detector 251 (the state of FIG. 8B), and switching is performed. The arm 250a is moved and the limit switch body 25 is turned on. Then, since the electric motor 600 is driven and a series of operations for opening the opening 155 of the next chopstick bag 150a 'is started, the working efficiency can be further improved.

  Next, the configuration of the mechanism unit 200 will be described with reference to FIGS. 9 to 13.

  As shown in FIG. 9 and the like, the mechanism portion 200 is advanced and retracted at a predetermined timing with respect to the opening portion 155 (see FIG. 15 and the like) of the chopstick bag 150a, and the tip portion 201a is inserted into the opening portion 155. An opening claw 201 (an example of opening means) that forms a space S (see FIG. 1, FIG. 15, etc.) into which chopsticks (plastic chopsticks) C can be inserted from the opening 155, and the opening claw 201 with respect to the opening 155 A driving mechanism D (an example of a driving unit) that moves forward and backward, presses the tip 201a against the surface of the chopstick bag 150a when the opening claw 201 enters the opening 155, and releases the pressure contact at the retracted end position. Prepare.

  The drive mechanism D includes an electric motor 600, a crank member 204 provided on the rotating shaft 601 of the electric motor 600, and a slide block that is engaged with the crank member 204 and can reciprocate in the direction of arrow H along the slide groove 202a. 202.

  Note that the engagement state and operation of the crank member 204 and the slide block 202 will be described later.

  A limit switch 205 that controls the stop of the electric motor 600 is provided adjacent to the rotating shaft 601.

  An opening claw 201 is attached to the slide block 202 via screw members 206a and 206b.

  The attachment position of the opening claw 201 can be adjusted by the screw members 206a and 206b, and fine adjustment according to the type of the chopstick bag 150 can be performed.

  Further, the opening claw 201 is attached with a spring 207 for causing the tip 201a to come into pressure contact with the surface side of the chopstick bag 150a when entering the opening 155 and to release the pressure contact at the retracted end position. It has been.

  Here, with reference to FIG. 10, the structure of the opening nail | claw 201 is demonstrated.

  The opening claw 201 has a wedge shape as shown in FIG.

  When the opening claw 201 is inserted into the opening 155 of the chopstick bag 150, the chopsticks (plastic chopsticks, etc.) C can be inserted into the space S formed on the left and right along both sides of the opening claw 201. It is designed to be as thick as possible (for example, about 2 mm).

  Further, the tip portion 201a of the opening claw 201 is rounded (see FIG. 10D in which the tip portion 201a is enlarged).

  Thereby, when the chopstick bag 150 is inserted into the opening 155 of the chopstick bag 150, a situation where the chopstick bag 150 is torn can be avoided.

  In addition, in the front-end | tip part 201a, the site | part which rounds a process is not specifically limited, You may make it round a rounding process on both sides | surfaces, an up-and-down surface, or the perimeter.

  The surface 201b of the opening claw 201 facing the chopstick bag 150 is recessed.

  Thereby, the friction when the opening claw 201 enters the opening 155 of the chopstick bag 150 is reduced, and the situation where the chopstick bag 150 is pushed out by the opening claw 201 can be avoided.

  Further, the end 201c of the opening nail 201 on the side where the chopsticks (plastic chopsticks) C are inserted is tapered.

  Thereby, the operation | work which packs chopsticks (plastic chopsticks etc.) C in the chopsticks bag 150 can be performed smoothly.

  Further, a shaft hole 254, a long hole 255, and a spring engagement hole 252 are provided on the lower side of the opening claw 201. When entering the opening 155, the tip 201a is pressed against the surface side of the chopstick bag 150a. In the retracted end position, a movement for releasing the pressure contact is performed. Specific movement will be described later.

  Further, as shown in FIG. 1 and the like, a guide member 650 is provided for guiding the chopsticks (plastic chopsticks, etc.) C when the chopsticks (plastic chopsticks, etc.) C are inserted into the opening 155 of the chopstick bag 150. The guide member 650 is formed with a guide groove 650a that narrows along the insertion direction.

  As a result, the chopsticks (such as plastic chopsticks) C can be guided to the opening 155 along the guide member 650, so that the work of packing the chopsticks bag 150 can be performed more smoothly.

  In the present embodiment, a groove 650 a in which the opening claw 201 can advance and retreat is formed at the center of the guide member 650.

  In the configuration example shown in FIG. 1 and the like, the guide member 650 is provided on the upper surface of the casing 700, and the casing 700 is also formed with a groove 700a in which the opening claw 201 can advance and retract.

  Next, the movement of the opening claw 201 will be described with reference to FIGS.

  A slide groove 202a is formed at the bottom of the slide block 202, and a rotatable roller 203a included in the crank member 203 is rotatably engaged with the slide groove 202a.

  Thereby, the rotational motion of the crank member 203 in the arrow P direction is converted into linear motion in the arrow J direction and the arrow K direction (see FIG. 12).

  First, the state of FIG. 11 shows the state of the fixed position where the front-end | tip part 201a of the opening nail | claw 201 fell.

  Thereby, the front-end | tip part 201a is press-contacted to the surface of the chopsticks bag 150a, and the opening part 155 of the chopsticks bag 150 can be opened.

  When the electric motor 600 is driven from this state and the crank member 203 is rotated in the direction of the arrow P, the slide block 202 is gradually moved in the K direction as shown in FIG. Retreated to.

  And when the stopper 901 provided on the rear end side of the opening claw 201 hits the rear end of the opening claw 201, the tip 201a of the opening claw 201 is once lifted in the direction of the arrow L, and when it is separated from the stopper 901, the tip 201a It is lowered again in the M direction (see FIG. 12).

  As a result, the pressure contact of the tip 201a with the surface of the chopstick bag 150a is released for a moment and the next chopstick bag 150a 'is pressed again, so that the opening 155 of the chopstick bag 150a can be more easily opened.

  That is, the vertical movement of the tip 201a of the opening claw 201 has the effect of facilitating the insertion of the entire opening claw 201 into the opening 155 of the chopstick bag 150 (making the opening easy).

  This is because the opening 155 can be hit with the tip 201a of the opening claw 201 (the tip 201a is moved up and down) to create a gap in the opening 155 of the chopstick bag 150.

  In the present embodiment, since the tip 201a of the opening claw 201 is urged toward the arrow M by the spring 207 (a tension is applied), an excessive force is applied to the surface of the chopstick bag 150a. In addition, the opening 155 of the chopstick bag 150a can be opened smoothly.

  That is, when the tip 201a of the opening claw 201 is in the lowered state (fixed position), the chopsticks bag 150 is always pushed up from below by the pressing plate 400, and the opening claw 201 is urged by the spring 207. Thus, a repulsive force is given to release the tip 201a of the opening claw 201 in the L direction.

  Thereby, it is possible to prevent excessive force from being applied to the chopstick bag 150a, and to prevent problems such as scratching the chopstick bag 150a.

  In addition, the opening claw 201 moves to the right side in the drawing, and preparation is made to open the opening claw 201 in a state where the opening claw 201 is lowered slightly before reaching the rightmost side. It can be pressed and opened more reliably.

  At this time, the opening claw 201 swings in the arrow L direction and the arrow M direction by moving the screw member 206b up and down in the elongated hole 255 about the screw member 206a as a rotation axis. Will be.

  Next, when the crank member 203 is further rotated in the direction of the arrow P, the slide block 202 is gradually moved in the J direction, and the state of FIG.

  Then, the limit switch 205 is operated to stop at the fixed position shown in FIG.

  In this way, with one rotation of the crank member 203 in the direction of arrow P, the operation of returning from the fixed position in FIG. 11 to the fixed position in FIG. 11 through the state in FIG. 12 and the state in FIG. 13 is driven as one cycle. .

  In the present embodiment, the roller 203a of the crank member 203 is designed to deviate from the dead point in the slide groove 202a at the fixed position shown in FIG.

  Thereby, when the opening nail | claw 201 is moved manually by some trouble, the situation which becomes a dead point and cannot be moved can be avoided.

  Next, with reference to FIG. 14 to FIG. 16, the flow of packing work of chopsticks (such as plastic chopsticks) C into the chopstick bag 150 using the opening device M according to the present embodiment will be described.

  It is assumed that a chopstick bag 150 is stacked and set in the bag stocker unit 100.

  First, the power switch 3 of the opening device M is turned on, and then the limit switch body 250 is operated by manually pushing the detector 251 once in the direction of arrow N as shown in FIG.

  Thereby, the electric motor 600 is driven, and the operation of one cycle in which the crank member 203 is rotated once in the P direction as described above is executed.

  That is, as shown in FIG. 14B, the opening claw 201 is operated along the arrow Q for one cycle. At this time, an operation in which the tip 201a of the opening claw 201 moves up and down in the arrow Q direction is also performed.

  By this series of operations, the opening claw 201 enters from the opening 155 of the chopstick bag 150a, and spaces S are formed on both sides of the opening claw 201.

  Next, as shown in FIG. 15C, each chopstick C is aligned with the guide groove 650a of the guide member 650 so that the opening claw 201 is sandwiched between two chopsticks (plastic chopsticks, etc.) C.

  Subsequently, the chopsticks C are inserted along the guide grooves 650a and inserted straight into the chopstick bag 150a.

  Next, as shown in FIG. 16E, each chopstick C is further pushed into the chopstick bag 150a, and the entire chopstick bag 150a is extracted through the extraction port 110.

  At this time, the leading portion of the chopstick bag 150a abuts against the detector 251 and the operation of pushing it in the N direction is performed together.

  As a result, the opening claw 201 is operated again for one cycle along the arrow Q, and the tip 201a of the opening claw 201 is moved up and down in the arrow Q direction, as shown in FIG. Then, the opening claw 201 enters from the opening 155 of the next chopstick bag 150 a, and spaces S are formed on both sides of the opening claw 201.

  Thereafter, by repeating the above operation, the packing operation of the chopsticks (plastic chopsticks, etc.) C into the chopstick bag 150 can be performed efficiently.

  According to the inventor's experiment, when the opening device M according to the present embodiment is used, about 1200 chopsticks (plastic chopsticks) C can be packed in the chopstick bag 150 in one hour ( About 3 seconds per foot).

  If everything was done manually, it was about 400 mm per hour, so it can be packed at about three times the speed, and the introduction of the opening device M according to the present invention is very efficient. I understand that.

  Further, unlike the prior art, since compressed air is not used, a device such as a compressor is unnecessary, and the device can be reduced in cost and reduced in size.

  Although the invention made by the present inventor has been specifically described based on the embodiments, the embodiments disclosed herein are illustrative in all respects and are not limited to the disclosed technology. Should not be considered. That is, the technical scope of the present invention should not be construed restrictively based on the description in the above embodiment, but should be construed according to the description of the scope of claims. All modifications that fall within the scope of the claims and the equivalent technology are included.

  For example, in the present embodiment, the case of packing chopsticks as a long object in a chopsticks bag is taken as an example. However, the present invention is not limited to this, and the case of packing a ruler in a storage bag or other long objects It is also conceivable to apply it when packing in a packaging bag.

  The opening device according to the present invention can be applied to an operation of packing a long object such as a chopstick or a ruler into a long object packing bag.

M Opening device 1 Device body 1a Case 2 Rubber foot 3 Power switch 4 Power fuse 5 Circuit breaker 100 Bag stocker portion 100a Side wall portion 110 Extraction port 120 Long hole 121 Long hole 130a Restriction portion 130c Restriction portion 150 Chopstick bag 155 Opening portion 156 End portion 200 Mechanism portion 201 Opening claw 201a Tip portion 202 Slide block 202a Slide groove 203 Crank member 203a Roller 204 Crank member 205 Limit switch 206a Screw member 206b Screw member 207 Spring 250 Limit switch body 250a Switching arm 251 Detector 251a Rotating shaft 252 Engagement hole 300 Spring 301 Belt member 400 Press plate 401 Press member 401a Inclined portion 402 Screw 403 Press member 410 Projecting lowering portion 410a Operation portion 420 Slide member 420a Ride hole 500 slide shaft 600 electric motor 601 rotates shaft 650 guide members 650a guide groove 700 casing 700a groove 901 stopper C chopsticks

Claims (10)

An opening device that opens the opening of a long packaging bag that is folded in a flat state and has an opening at one end,
A holding means for laminating and holding a plurality of the long article packing bags;
An urging means for urging the plurality of long packaging bags held by the holding means in the stacking direction;
Opening means that forms a space in which a predetermined long object can be inserted from the opening in a state where the opening is advanced and retracted at a predetermined timing with respect to the opening and the tip is inserted into the opening;
Drive that moves the opening means forward and backward with respect to the opening, and presses the tip portion against the long packaging bag when the opening means enters the opening, and releases the pressure contact at the retracted end position. Means,
An opening device comprising: The holding means is
At least a pressing plate that is biased in the stacking direction by the biasing means and presses the stacked long packaging bag;
The said press plate has the structure by which the edge part by the side of the opening part of the said elongate packaging bag was inclined in the anti-laminate direction, and the other end part protruded in the lamination direction. Opening device. In the holding means,
A regulation part is provided that abuts on both ends of the long side of the long packaging bag at the end position in the stacking direction and warps the center of the long packaging bag outward. The opening apparatus in any one of Claim 1 or Claim 2 to do. At the end of the holding means, an extraction port for removing the long packaging bag into which the predetermined long object has been inserted is formed,
It further comprises an operation switch that is on a passage line when the long product packaging bag is extracted from the extraction port and that activates the driving means in contact with a part of the long product packaging bag. The opening apparatus in any one of Claims 1-3.   When the operation switch is operated, the tip of the opening means is advanced so as to be inserted into the opening of the long packaging bag, and then the tip is moved to the next long packaging bag. 5. The opening device according to claim 4, further comprising a control unit that controls the driving unit with an operation of moving backward to a position before the opening and stopping thereafter. The opening means includes an opening claw having a wedge shape,
The said long claw is comprised so that it may be inserted in the space formed in right and left along the both sides of the said opening nail when this opening nail is inserted in the said opening part. The opening device in any one of Claims 1-5.   The opening device according to claim 6, wherein a rounding process is applied to a tip portion of the opening nail.   8. The opening device according to claim 6, wherein a surface of the opening claw facing the long packaging bag is recessed.   The opening device according to any one of claims 6 to 8, wherein an end portion of the opening claw on a side where the long object enters is tapered. When inserting the predetermined long object into the opening of the long object packing bag, a guide member for guiding the long object is further provided,
The opening device according to any one of claims 1 to 9, wherein the guide member is formed with a guide groove that narrows in the insertion direction.

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