JPWO2011040178A1 - Timing belt, airtight structure of suction conveyor, and bagging device - Google Patents

Abstract

Provided are a timing belt, an airtight structure of a suction conveyor, and a bagging device that can satisfactorily suck articles and contribute to downsizing of the suction conveyor. A timing belt (1) is provided with a plurality of teeth (9) arranged in the longitudinal direction on a belt body (3) in which a ventilation hole (7) is penetrated between edges (5) on both sides in the width direction. The teeth 9 are arranged inward in the width direction from the edge 5 of the body 3. The airtight structure 11 of the suction conveyor includes a timing belt 1, a bottom material 15 in which an air passage 13 that supports the teeth 9 of the timing belt 1 slidably in the longitudinal direction and guides negative pressure to the vent hole 7, and a belt 3, two edge portions 5 are provided with two airtight liners 17 in sliding contact with each other.

Description

  The present invention relates to a timing belt applied to a suction conveyor, an airtight structure for keeping the airtightness of the suction conveyor, and a bagging device in which the suction conveyor is responsible for conveying articles.

  Patent Document 1 discloses a suction conveyor that forms air holes in a belt, sucks articles by negative pressure guided to the air holes, and positions the articles on the belt. To accurately synchronize the transport speed of the bag and the contents in the bagging device that inserts the contents into the bag while transporting the bag and the contents by suction conveyors arranged in parallel to each other, the timing is A timing belt that travels according to the rotation of the pulley is preferably applied as the belt of the suction conveyor.

  FIG. 13 shows a structure in which a timing belt 105 in which teeth 103 are formed on both edges 101 in the width direction is supported by a support member 107 (see Patent Document 2). From the viewpoint of downsizing the suction conveyor, the timing belt 105 is required to be thin. Further, the support surface 109 of the support member 107 receives the load of the article so that the timing belt 105 is not bent by the load of the article placed on the timing belt 105.

  However, since the support surface 109 is secured on the support member 107, the width and width of the groove 113 for guiding negative pressure to the vent hole 111 of the timing belt 105 are limited, and the arrangement and width of the vent hole 111 are also limited. The This is disadvantageous for increasing the suction force by which the air holes 111 suck the article. In addition, since the branch path 115 that distributes the negative pressure to the plurality of grooves 113 is indispensable, the suction conveyor can be prevented from being downsized.

Japanese Patent Application Laid-Open No. 11-292025 JP 2000-296961 A

  An object of the present invention is to provide a timing belt, an airtight structure of a suction conveyor, and a bagging device that can satisfactorily suck articles and contribute to downsizing of the suction conveyor.

  The present invention relates to a timing belt in which a plurality of teeth arranged in the longitudinal direction are provided in a belt body that has a vent hole formed between edges on both sides in the width direction, and is wider than the edge of the belt body. The teeth are arranged inward in the direction.

  Further, the present invention provides a timing belt having a plurality of teeth arranged in the longitudinal direction inside the width direction of the air holes through the air holes between the edges on both sides in the width direction of the belt body. , The teeth of the timing belt are slidably supported in the longitudinal direction, and a bottom member is formed with an air passage for guiding negative pressure to the vent hole, and the edges on both sides of the belt body extend in the longitudinal direction. It comprises two strips of airtight liners that are in sliding contact with each other.

  Further, according to the present invention, the bottom material has a guide groove that receives the teeth of the timing belt on the bottom surface, the air passage is opened to the bottom surface of the guide groove, and the two airtight liners are formed on the guide groove. It is characterized in that it is arranged in such a manner that the teeth pass through each other at an interval.

  Further, the present invention provides a timing belt having a plurality of teeth arranged in the longitudinal direction inside the width direction from the edges, with a ventilation hole penetrating between edges on both sides in the width direction of the band. A suction conveyor that travels in the horizontal direction and sucks the bag body received by the timing belt by the negative pressure guided to the vent hole, a direction to advance to the bag body sucked by the suction conveyor, and a backward movement from the bag body And an insertion device that pushes an article into the bag in a process in which the pusher reciprocates in the direction and the pusher moves forward to the bag.

  Further, the present invention provides a bottom material in which an air passage for guiding a negative pressure to a ventilation hole of the timing belt is formed to support the timing belt teeth slidably and extending in a longitudinal direction of the timing belt. It is characterized by comprising two strips of airtight liners in which the edges on both sides of the belt body of the belt are in sliding contact with each other.

  Further, the present invention provides a film supply means for feeding out a film in which the film having a dimension in the width direction is conveyed in the shape of the film folded in half in the width direction, and a heat cutter extending in the width direction of the film. The bag is formed by pressing in the middle of the film in the longitudinal direction, welding the two folded films together with the heat of the heat cutter, and dividing the film in the middle of the longitudinal direction. And a bag making apparatus.

  Since the airtight structure of the timing belt and the suction conveyor according to the present invention has teeth provided inward in the width direction rather than the edge of the belt, the edge of the belt can function as follows. . That is, when the timing belt is caused to travel in the longitudinal direction according to the rotation of the timing pulley or the like, the edge portions on both sides of the belt body are in sliding contact with the two airtight liners, respectively. For this reason, the negative pressure guided to the air vent of the timing belt from the air passage of the bottom material supporting the teeth is prevented from escaping between the edge portions on both sides of the belt and the bottom material, and is placed on the belt. It is possible to increase the suction force with which the vent holes suck the articles.

  Further, the teeth of the timing belt according to the present invention also serve to reinforce the inner part of the edge of the belt body, so even if the width of the air passage is more than half the tooth width of the teeth, The timing belt is not easily bent in the width direction by the load of the article placed on the belt. For this reason, the airtight structure of the suction conveyor is advantageous in increasing the suction force by widening the air vent and the air passage.

  Further, according to the airtight structure of the timing belt and the suction conveyor according to the present invention, the region inside the belt body and the guide groove is at atmospheric pressure by the action of the negative pressure guided from the air passage to the vent hole of the timing belt. The pressure is lower than. Based on the pressure difference between these regions and the atmosphere, the edges on both sides of the belt are pressed against the two airtight liners, so that the airtight structure of the timing belt and the suction conveyor achieves the above-described effects remarkably. be able to.

  According to the bagging apparatus according to the present invention, the number of articles that can be inserted into the bag per predetermined time can be easily increased by setting the speed at which the pusher reciprocates. In addition, the suction conveyor can suppress the negative pressure guided from the suction means to the vent hole of the belt from escaping from between the edge portions on both sides of the belt and the bottom surface material, so that the output of the suction means is not increased unnecessarily. There is an advantage that it can be done. In addition, the bagging device can achieve the same effects as the timing belt and the airtight structure of the suction conveyor.

(A) is a top view which shows the upper surface of the timing belt which concerns on Example 1 of this invention, (b) is the side view which fractured | ruptured a part of the timing belt, (c) is a top view which shows the lower surface of the timing belt (D) is the XX sectional view. The fracture | rupture perspective view which decomposed | disassembled the airtight structure of the suction conveyor which concerns on Example 2 of this invention. Sectional drawing which shows the airtight structure of the suction conveyor which concerns on Example 2 of this invention. Sectional drawing which shows the support structure of the suction conveyor to which the popular type timing belt was applied. Sectional drawing which shows the airtight structure of the suction conveyor which concerns on Example 3 of this invention. Sectional drawing which shows the airtight structure of the suction conveyor which concerns on Example 4 of this invention. The top view of the bagging apparatus which concerns on Example 5 of this invention. The perspective view which shows the insertion process of the article | item by the insertion apparatus applied to the bagging apparatus which concerns on Example 5 of this invention. The disassembled perspective view which shows an example of the principal part of the insertion apparatus which concerns on Example 5 of this invention. The top view of the principal part of the insertion apparatus which concerns on Example 5 of this invention. (A) is a schematic diagram explaining an example of operation of an insertion device concerning Example 5 of the present invention paying attention to the introduction part of the guide rail, and (b) is a schematic diagram explaining other examples. (A) is a schematic diagram explaining an example of operation of an insertion device concerning Example 5 of the present invention paying attention to the sending part of the guide rail, and (b) is a schematic diagram explaining other examples. Sectional drawing which shows the support structure of the suction conveyor of a prior art example.

  A timing belt, an airtight structure of a suction conveyor, and a bagging device according to an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the timing belt 1 includes a plurality of ventilation holes 7 that are bisected between the edges 5 on both sides in the width direction of the band 3, and are arranged at equal pitches in the longitudinal direction of the band 3. The teeth 9 are provided on the lower surface of the band 3. All the teeth 9 are arranged inward in the width direction with respect to the edge portions 5 on both sides of the belt 3. The lower surface of the edge 5 of the band 3 is a smooth sliding surface. As the band 3, it is preferable to apply a proloprene rubber having excellent flexibility through a core wire that can withstand the tension in the longitudinal direction.

  As shown in FIGS. 2 and 3, the airtight structure 11 of the suction conveyor includes a timing belt 1, a bottom material 15 in which an air passage 13 for introducing a negative pressure to the vent hole 7 is formed, and edges on both sides of the belt 3. 5 is provided with two strips of hermetic liners 17 that are in sliding contact with each other. The bottom surface material 15 receives the teeth 9 of the timing belt 1 by the bottom surface of the guide groove 19 extending in the longitudinal direction. The width of the guide groove 19 is set to be slightly wider than the entire width of the band 3, and the depth of the guide groove 19 is set to be substantially equal to the height of the band 3 plus the tooth height of the teeth 9. The air passage 13 is a long hole or a groove-shaped portion opened to the bottom surface of the guide groove 19, and is connected to the suction means via the duct 23. Here, the suction means may be any means that sucks air like a suction port such as an air blower.

  When the suction means is activated, the air flows from the air holes 7 through the gaps between the adjacent teeth 9 and flows into the air passage 13. For example, when the timing belt 1 is wound around the timing pulley and the timing belt 1 is caused to travel according to the rotation of the timing pulley, the lower surfaces of the edge portions 5 on both sides of the belt body 3 slide on the two airtight liners 17 respectively. Contact. Thereby, it can suppress that air | atmosphere passes between the edge part 5 of the strip | belt body 3, and the inner surface of the guide groove 19. FIG. In other words, since the negative pressure guided from the air passage 13 to the vent hole 7 can be prevented from escaping from between the edge 5 on both sides of the belt body 3 and the bottom surface material 15, the article placed on the belt body 3 can be removed. A suction force that can be satisfactorily sucked can be generated in the vent hole 7.

  In addition, when the air flows into the air passage 13 from the vent hole 7, the air pressure in the region inside the belt 3 and the bottom surface of the guide groove 19 is lower than the atmospheric pressure. Based on the pressure difference between these regions and the atmosphere, the edge portions 5 on both sides of the belt 3 receive the force in the direction of the arrow P and are pressed against the two airtight liners 17 respectively. As a result, the edge 5 of the belt 3 is in close contact with the airtight liner 17, and it is possible to further suppress the negative pressure from escaping between the edge 5 on both sides of the belt 3 and the bottom surface material 15. Can be increased.

  Further, the arrangement and shape of the air passage 13 of the bottom member 15 may be freely set within a range inside the two airtight liners 17. Further, the teeth 9 also serve to reinforce the inner part of the edge 5 of the band 3, so that the width of the air passage 13 extends to 1/2 to 3/4 of the tooth width of the teeth 9. Even if it is set, the timing belt 1 is not easily bent in the width direction due to the load of the article placed on the band 3. For this reason, the airtight structure 11 of the suction conveyor is advantageous for increasing the suction force by increasing the diameter of the air holes 7 and the width of the air passage 13.

  A popular type timing belt is compared with the timing belt 1 described above. FIG. 4 shows an example in which the timing belt 25 in which the tooth width of the teeth 9 is substantially equal to the entire width of the band 3 is inserted into the guide groove 19. When the suction means connected to the air passage 13 is activated, the air flows into the air passage 13 from the vent hole 7. At the same time, a gap is formed between the edge 5 on both sides of the belt 3 and the inner surface of the guide groove 19. Since the atmosphere passes through, the suction force of the vent hole 7 is reduced accordingly. Further, since the amount of air passing through the gap between the edge portion 5 and the inner surface of the guide groove 19 increases as the output of the suction means increases so that the suction force of the vent hole 7 becomes a desired strength, The efficiency of the suction means is inevitable.

  As shown in FIG. 5, the airtight structure 26 of the suction conveyor includes a timing belt 1, a flat aluminum bottom material 15, two airtight liners 17 attached to the upper surface of the bottom material 15, and these And two sliding members 27 respectively attached to the airtight liner 17.

  The same names are used for the elements already described in the second embodiment, and the description thereof is omitted. The sliding member 27 supports the article in a slidable manner when an article having a size exceeding the entire width of the belt 3 is placed on the timing belt 1. The material of the airtight liner 17 and the sliding material 27 is stainless steel. The entire width of the band 3 is 50 mm, and the diameter of the vent hole 7 is 8 mm. The pitch of the plurality of vent holes 7 is 35 mm. The thickness of the airtight liner 17 is substantially equal to the tooth thickness of the teeth 9, and the height from the bottom surface material 15 to the top surface of the sliding material 27 is 2.2 mm. This is substantially equal to the total thickness of the timing belt 1.

  As shown in FIG. 6, the airtight structure 29 of the suction conveyor has two strips 31 formed on the flat bottom material 15, and guide grooves 19 are formed between these projections 31, so that an ultra high polymer is formed. A concave member 33 made of polyethylene is arranged on the bottom surface of the guide groove 19. The concave member 33 is formed by integrating the bottom plate portion 37 that is in close contact with the bottom surface of the guide groove 19 and slidably receives the teeth 9 of the timing belt 1 and the two airtight liners 17. Since the bottom plate portion 37 of the concave member 33 has a small coefficient of friction with respect to the teeth 9, the resistance when the timing belt 1 travels can be reduced as compared with the case where the teeth 9 are directly supported by the bottom material 15. . Reference numeral 35 indicates a ventilation path formed at a position matching the air path 13 of the bottom plate portion 37.

  The full width of the belt 3 means the belt width [w] of the timing belt 1, and if the tooth width of the teeth 9 is [s], the width [σ] of the edge 5 on one side is σ = (w−s ) / 2, and is preferably set in a range of 5 mm ≦ σ ≦ 10 mm. Alternatively, if the thickness of the band 3 is [t], [σ] may be set in a range of 3t ≦ σ ≦ 15t.

  It should be noted that the present invention can be implemented in a mode in which various improvements, modifications, or variations are added based on the knowledge of those skilled in the art without departing from the spirit of the present invention. Although the shape in which the position where the vent hole 7 penetrates the belt 3 matches between the adjacent teeth 9 (valley) is illustrated, the vent hole 7 may penetrate the teeth 9. The bottom member 15 and the airtight liner 17 may be integrated. The strip 3 may be endless. Further, the shape, arrangement, number, or size of the vent holes 7 are matters that can be changed as appropriate.

  A bag filling apparatus including the timing belt 1 will be described. FIG. 7 illustrates a film supply unit 201, a bag making apparatus 203, a suction conveyor 207 that conveys the bag body 205, an article supply unit 213 that supplies an article 211 to a position facing the opening 209 of the bag body 205, The outline of the bagging apparatus 200 provided with the insertion apparatus 215 is represented. FIG. 8 shows the shape of the opening 209 of the bag body 205 immediately before the article 211 is inserted by the operation of the insertion device 215 described later.

  As shown in FIG. 7, the film supply unit 201 is configured to send the film 217 wound in a roll shape into a shape in which the film 217 is folded in the middle in the width direction in the direction of the arrow T. The bag making apparatus 203 forms a rectangular bag 205 by heating the film 217 that is folded in two with a heat cutter 219 and fusing these films with the heat of the heat cutter 219. The melted portion 221 becomes a side edge portion of the bag body 205 in which the two-folded films 217 are fused to each other.

  The suction conveyor 207 conveys the bag body 205 received by the timing belt 1 by causing the plurality of timing belts 1 supported by the bottom surface material 15 described above to travel in the direction of the arrow T. Negative pressure is introduced from the suction means into the vent hole 7 of the timing belt 1 so that the bag body 205 is adsorbed to the belt 3 of the timing belt 1. Further, as described in the second embodiment, when the edge 5 of the band 3 is in close contact with the airtight liner 17, negative pressure escapes between the edge 5 on both sides of the band 3 and the bottom material 15. Therefore, there is an advantage that it is not necessary to unnecessarily increase the output of the suction means for introducing the negative pressure to the vent hole 7.

  Next, the configuration of the insertion device 215 will be described. Since a well-known technique can be applied to the drive source or guide means described below, detailed description of each is omitted. For example, an air cylinder, a hydraulic cylinder, a servo motor, a rotating machine with a speed reducer, or an electric cylinder that expands and contracts an operating rod according to the operation of the rotating machine may be applied as a driving source. As the guide means, a sliding pair formed by slidingly sliding a slider on a guide rail may be applied.

  As shown in FIGS. 9 and 10, the insertion device 215 includes a linear operation means 229 for reciprocating the slider 227 in the horizontal direction, and a portal shape in which an upright portion 233 is connected to the slider 227 via a guide means 231 so as to be movable up and down. , A support body 243 that supports the article 211 at the same height as the bag body 205, a straight rail 245 extending in the horizontal direction, and a cam rail 247 disposed above the straight rail 245.

  The linear movement means 229 is configured to connect a ball nut 251 screwed to the feed screw 249 to the slider 227 and rotate the feed screw 249 with a drive source to move the slider 227 along the feed screw 249. . Both ends of the feed screw 249 are rotatably supported by the housing of the insertion device 215. The pusher 235 attaches a substantially L-shaped insertion claw 253 and feed claw 255 to the frame 237 so as to be separated from each other in the direction in which the pusher 235 reciprocates. Arrows F and R indicate directions in which the pusher 235 moves forward or backward with respect to the bag body 205 together with the slider 227.

  The standing portion 233 of the driven holder 241 has a linear roller 245 or a driven roller 257 that can be brought into rolling contact with the cam rail 247 inside thereof. The follower holder 241 has a pusher 235 frame 237 fixed to an upright portion 239 thereof. The support body 243 is a pair of guide rails 259 made of chevron shaped lightweight steel. The guide rail 259 supports the article 211 with its flange 261. The flange 263 of the guide rail 259 restricts the article 211 from deviating from the inside of the pair of guide rails 259. A smooth bottom plate may be provided between the pair of guide rails 259.

  The article supply means 213 appears in FIG. 10 as an endless belt 267 wound around a rotating wheel 265, but if the article 211 can be introduced into the pair of guide rails 259 from the direction of the arrow F, It is not limited to the form shown in FIG. A plurality of rollers 269 are disposed inside the pair of guide rails 259. This is so that the article 211 placed on the endless belt 267 running with the drive source can slide with its inertial force immediately after the article 211 is detached from the endless belt 267. Reference numerals 271 and 273 denote an introduction part and a delivery part of the guide rail 259, respectively.

  The support plate 275 shown in FIG. 10 supports the straight rail 245 and the pin 277 disposed above the straight rail 245, and is fixed to the housing of the insertion device 215. As shown in FIG. 9, the cam rail 247 includes an inclined portion 281 extending from one end 279 in the direction of the arrow F, and a horizontal portion 285 extending from the other end 283 in the direction of the arrow R. In a posture received by the rail 245, the pin 277 is rotatably supported. The inclined portion 281 may have a shape that rises and inclines in the direction of the arrow R. Reference numeral 287 in FIG. 9 indicates an insertion hole through which the pin 277 is inserted into the cam rail 247.

  The operation of the insertion device 215 will be described below. A bag making apparatus 203 shown in FIG. 7 sequentially forms a plurality of bag bodies 205, and these bag bodies 205 are conveyed by a bag body conveying means 207. When the opening 209 of one bag body 205 reaches the front surface of the insertion claw 253 of the pusher 235, the bag body transport unit 207 stops the transport of the bag body 205. In this state, the linear operation means 229 of the insertion device 215 reciprocates the slider 227, thereby executing the first to fourth steps of the operation described below.

  In the first step, as the slider 227 moves forward, the driven roller 257 moves along the straight rail 245 in the direction of the arrow F from the position indicated by the virtual line 257 ′ in FIG. 9. FIG. 11A shows that the article 211 supplied from the article supply means 213 hits the feed claw 255 of the pusher 235 and stops while this process is being executed.

  Further, the driven roller 257 moves in the direction of the arrow F, and comes into contact with the inclined portion 281 of the cam rail 247 from below. Since the inclined portion 281 is pushed up by the driven roller 257, the cam rail 247 turns in a direction to raise the one end 279 with the pin 277 as a fulcrum. After the driven roller 257 passes through the gap between the one end 279 of the inclined portion 281 and the linear rail 245 thus opened, the cam rail 247 turns by its own weight so as to descend the one end 279 and again receives the one end 279 on the linear rail 245. It is done. When the slider 227 reaches the limit for advancement, the feed claw 255 of the pusher 235 reaches the position indicated by the solid line in FIG. At the same time, the insertion claw 253 of the pusher 235 reaches the position indicated by the solid line in FIG.

  As described above, the height of the driven holder 241 is positioned by the linear rail 245 in the process in which the driven roller 257 moves along the linear rail 245. For this reason, the height of each of the insertion claw 253 and the feed claw 255 of the pusher 235 matches the article 211 supported by the support body 243. As the slider 227 advances, the article 211 is pushed into the bag body 205 by the insertion claw 253 and the entire article 211 is inserted into the bag body 5. Here, “match” means that the tips of the insertion claw 253 and the feed claw 255 are slightly below the article 211.

  In the second step, the driven roller 257 moves along the straight rail 245 in the direction of arrow R in the process of retreating the slider 227 and reaches one end 279 of the inclined portion 281 of the cam rail 247. On the other hand, the insertion claw 253 of the pusher 235 is detached from the article 211 inserted into the bag body 205 in the first step and retracted from the bag body 205.

  In the third step, the slider 227 further moves backward, and the driven roller 257 rides on the inclined portion 281. At this time, since the load of the driven roller 257 is applied downward to the cam rail 247, the cam rail 247 maintains the posture in which the one end 279 is received by the linear rail 245. The driven roller 257 that moves in the direction of the arrow R moves up along the inclined portion 281 of the cam rail 247 and then moves along the horizontal portion 285. As a result, the driven holder 241 ascends together with the driven roller 257 and then moves horizontally, so that the feed claw 255 of the pusher 235 passes above the article 211 as indicated by a virtual line 255 ′ in FIG. .

  In the fourth step, the driven roller 257 is detached from the other end 283 of the horizontal portion 285 of the cam rail 247 and returned to the position indicated by the imaginary line 257 'in FIG. At this time, the feeding claw 255 of the pusher 235 is further retracted from the article 211 and reaches a position indicated by a virtual line 255 ″ in FIG. 11B. The driven roller 257 is connected to the other end of the horizontal portion 285. After leaving 283, the pusher 235 is lowered together with the driven holder 241 because it is lowered to a height that can be received by the straight rail 245.

  Subsequently, the transport means 207 resumes transport of the bag body 205, and when the opening 209 of the bag body 205 following the bag body 205 into which the article 211 has already been inserted has reached the front of the insertion claw 253 of the pusher 235, The bag body conveying means 207 stops the conveyance of the bag body 205. The insertion device 215 executes the first process for the second time. During this time, a new article 211 is supplied from the article supply means 13 to the position shown in FIG.

  On the other hand, the feed claw 255 of the pusher 235 moving forward from the position represented by the imaginary line 255 ″ in FIG. 11 (b) hooks the article 211 supplied during the first first process, By performing the second to fourth steps of the second time, the feed claw 255 of the pusher 235 passes over the article 211 supplied during the second first step, and at the same time pusher As shown by a virtual line 253 ′ in FIG. 12A, the insertion claw 253 of 235 passes above the article 211 supplied during the first step of the first time, and is a position represented by a virtual line 253 ″. Reach up to.

  Thereafter, the first step to the fourth step are further repeated, so that the article 211 supplied during the first step of the first time is inserted by the insertion claws 253 of the pusher 235 as shown in FIG. It is pushed out from between the pair of guide rails 259 and inserted into the opening 209 of the bag body 205 shown in FIG. In addition, each time the article 211 is inserted into one bag body 205, the transport unit 207 repeatedly transports and stops the bag body 205, so that the insertion device 215 receives a plurality of articles 211 sequentially supplied from the article supply unit 213. Can be inserted into the plurality of bags 205 conveyed by the suction conveyor 207, respectively.

  The insertion device 215 preferably includes a pair of movable guides 301 between the pair of guide rails 259 and the opening 209. The pair of movable guides 301 are formed such that each protruding end 303 has a wedge shape and the cross section has a groove shape inward. Further, the insertion device 215 preferably includes guide means for guiding the pair of movable guides 301 so as to be movable in the directions of arrows F and R, and drive means for moving the pair of movable guides 301 back and forth in this direction.

  In this case, the movable guide 301 is moved backward from the illustrated position so that the protruding end 303 of the movable guide 301 is detached from the opening 209 of the bag body 205, and the article 211 is placed between the pair of guide rails 259 in the first step. Immediately before being pushed out, the pair of movable guides 301 are advanced, and the respective protrusions 303 enter the opening 209. Thereby, the opening part 209 is opened larger than the dimension of the articles | goods 211, and malfunctions, such as the article 211 inserted in the bag body 205 being caught by the opening part 209, can be prevented beforehand.

  Further, a suction pad 307 is provided at the lower end of the pipe 305 suspended above the timing belt 1, and immediately before the pair of movable guides 301 are advanced by the negative pressure guided to the suction pad 307 from the suction means through the pipe 305. In addition, an appropriate position of the bag 205 may be sucked so that the opening 209 opens above the timing belt 1. Further, when the pair of movable guides 301 are retracted from the bag body 205, the respective protruding ends 303 are inclined to approach each other, and when the protruding ends 303 enter the opening 209, the interval between the protruding ends 303 is increased. The movable guide 301 may be operated as described above. Thereby, tension | tensile_strength can be generated in the opening part 209 of the bag body 205, and the loosening of the opening part 209 can be prevented.

  It should be noted that the present invention can be implemented in a mode in which various improvements, modifications, or variations are added based on the knowledge of those skilled in the art without departing from the spirit of the present invention. The film supply means 201 and the bag making apparatus 203 shown in FIG. 7 may be omitted, and the article 211 may be inserted into an existing bag body. In this case, an existing bag body may be directly supplied onto the timing belt 1 of the suction conveyor 207. Further, the feed screw 249 and the ball nut 251 may be omitted, and a drive source in which the slider 227 is joined to the piston rod may be applied as the linear motion means 229.

  The speed at which the suction conveyor 207 conveys the bag body 205 is doubled, and two or more insertion devices 215 arranged in the direction of the arrow F may insert the article 211 into the two or more bag bodies 205 at the same time. Further, after the insertion device 215 inserts the article 211 into the bag body 205, the bag closing device that seals the opening 209 of the bag body 205 is used, and the suction conveyor 207 transports the bag body 205 into which the article 211 has already been inserted. It may be provided in the middle.

  The present invention is a useful technique for transporting and positioning any article. In addition, the present invention is a technique useful for stuffing articles into a large number of bags, for example, when mailing a product catalog by direct mail, because articles can be inserted into a bag at high speed without depending on human hands. .

  DESCRIPTION OF SYMBOLS 1,25,105 ... Timing belt, 3 ... Band, 5,101 ... Edge, 7, 111 ... Vent, 9, 103 ... Teeth, 11, 26, 29 ... Airtight structure of suction conveyor, 13 ... Air passage 15 ... Bottom material, 17 ... Airtight liner, 19 ... Guide groove, 23 ... Duct, 27 ... Sliding material, 31 ... Projection, 33 ... Concave member, 35 ... Ventilation path, 37 ... Bottom plate part, 107 ... Support 109, support surface, 113, groove, 115, branch path.

  DESCRIPTION OF SYMBOLS 200 ... Bag filling apparatus, 201 ... Film supply means, 203 ... Bag making apparatus, 205 ... Bag body, 207 ... Suction conveyor, 209 ... Opening part, 211 ... Article, 213 ... Article supply means, 215 ... Insertion apparatus, 217 ... Film, 219 ... Heat cutter, 221 ... Location, 227 ... Slider, 229 ... Linear motion means, 231 ... Guide means, 233, 239 ... Standing part, 235 ... Pusher, 237 ... Frame, 241 ... Follower holder, 243 ... Support 245: Linear rail, 247 ... Cam rail, 249 ... Feed screw, 251 ... Ball nut, 253 ... Insertion claw, 255 ... Feed claw, 257 ... Driven roller, 269 ... Roller, 259 ... Guide rail, 261, 263 ... Flange, 265 ... Rotating wheel, 267 ... Endless belt, 275 ... Support plate, 277 ... Pin, 279 ... One end, 81 ... inclined portion, 283 ... the other end, 285 ... horizontal section, 287 ... insertion hole, 301 ... movable guide, 303 ... tip, 305 ... Pipe, 307 ... suction pad.

Claims (6)

  A timing belt provided with a plurality of teeth arranged in the longitudinal direction on a belt body that has a vent hole between edges on both sides in the width direction, and is an inner side in the width direction than the edge portion of the belt body The timing belt according to claim 1, wherein the teeth are arranged. A timing belt provided with a plurality of teeth arranged in the longitudinal direction inside the width direction than the edges, through the air holes between the edges on both sides in the width direction of the belt;
A bottom surface material in which the teeth of the timing belt are slidably supported in the longitudinal direction and an air passage for guiding negative pressure to the vent hole is formed;
An airtight structure of a suction conveyor, comprising two strips of airtight liners extending in the longitudinal direction and in which edges on both sides of the belt body are in sliding contact with each other.   The bottom material has a guide groove for receiving the teeth of the timing belt on the bottom surface, the air passage is opened to the bottom surface of the guide groove, and the two airtight liners are formed on the inner side of the guide groove. The airtight structure of the suction conveyor according to claim 2, wherein the passages are spaced apart from each other. A ventilation hole penetrates between the edges on both sides in the width direction of the belt body, and a timing belt provided with a plurality of teeth arranged in the longitudinal direction is run inward in the width direction from the edges, and is run in the horizontal direction. A suction conveyor for sucking the bag received by the timing belt by a negative pressure guided to the vent hole;
An insertion device for reciprocating a pusher in a direction of advancement to the bag body sucked by the suction conveyor and in a direction of retreating from the bag body, and for pushing an article into the bag body in the process of advancement of the pusher to the bag body; ,
A bagging device comprising: A bottom member in which a tooth path of the timing belt is slidably supported and an air passage is formed to guide negative pressure to the vent hole of the timing belt;
Two strips of airtight liners extending in the longitudinal direction of the timing belt and in which the edges on both sides of the belt of the timing belt are in sliding contact with each other;
The bagging apparatus according to claim 4, comprising: A film supply means for feeding out the film in a shape in which the film is folded in the width direction in the middle of conveying the film having a dimension in the width direction;
The heat cutter extending in the width direction of the film is pressed in the middle of the film in the longitudinal direction, the two films folded in two are welded by the heat of the heat cutter, and the film is divided in the middle of the length direction. A bag making apparatus for forming a bag body having an opening,
The bagging apparatus according to claim 4, comprising:

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