JP5667910B2 - Can transporter - Google Patents

Description

  The present invention relates to a can conveying device used in a can manufacturing facility.

  In the can manufacturing equipment, for example, as shown in Patent Document 1 below, a plurality of mandrels that cantilever-support the can by being fitted into a mouth portion of a can formed into a bottomed cylindrical shape, There is provided a printing machine that includes a plurality of blankets that perform printing on a body of a can supported by a mandrel. Further, the printing press is provided with a can conveying device for mounting the can sent from the previous process (on the molding machine side) to the chute on the mandrel.

  This type of can transport device is a disc-shaped turret that is rotated in the direction of transport of the can out of the circumferential direction around the central axis, and a plurality of cans are provided at equal intervals on the outer periphery of the turret. A bottomed cylindrical can that is supported so that its can axis is arranged parallel to the center axis of the turret, the chute that feeds the can into the pocket, and the pocket in the direction of the center axis of the turret. A plurality of the mandrels arranged on one side, which is the mouth side of the can supported by the pocket, and moving in the transport direction so as to synchronize with the pocket, and the central axis direction of the turret with respect to the pocket Is disposed on the other side, which is the bottom side of the can supported by the pocket, extends along the transport direction, and gradually inclines toward the one side toward the transport direction. Cantilever It is lifting the tip is provided with a Slapper which is a free end. Note that the slapper is formed of a resin material having good slidability.

  In the can conveying apparatus configured as described above, when the turret rotates in the conveying direction, as shown in FIG. 6, the can 100 supported by the pocket slides the bottom 100a against the slapper 110. The can 100 is pushed toward the one side (the upper side in FIG. 6), and the mouth portion 100 b of the can 100 is fitted into the mandrel 20.

U.S. Pat. No. 4,138,941

However, the conventional can conveying apparatus has the following problems.
That is, as shown in FIG. 7, for example, a poorly formed can (hereinafter referred to as a defective can) 100 </ b> Z that does not fit in the mandrel 20 is conveyed, and the opening 100 b of the defective can 100 </ b> Z is not fitted into the mandrel 20. In this case, as the defective can 100Z moves in the conveyance direction C, the defective can 100Z is crushed by itself and gradually pushes down the slapper 110 to the other side (lower side in FIG. 7). As a result, the slapper 110 is elastically deformed and the inclination is loosened, and the distance between the mouth portion 100b of the normal can 100 following the defective can 100Z and the mandrel 20 corresponding to the can 100 increases, and the can cannot be seated. In order to be stable, the normal can 100 cannot be fitted to the mandrel 20 and can be dropped outside the apparatus, or in a wrong position between the mandrel 20 and the slapper 110 even though it is a normal molded can. It will be pinched and it will become a crushing defective can. Once in such a state, a plurality of normal cans 100 following the defective can 100Z are crushed into chained cans, and the slapper 110 is pushed down again, resulting in a vicious circle. Therefore, dozens of defective cans were produced until the can 100 was normally fitted to the mandrel 20 and wasted.

  In this way, for the purpose of preventing defective cans from being produced in a chain, the adjusting screw 120 shown in FIG. 6 is tightened and the slapper 110 is pushed to the one side (the upper side in FIG. 6). It is done to make the slope of the as large as possible. In this case, the slapper 110 pushed down to the other side by the defective can 100Z is likely to be restored and deformed, and the number of defective cans can be reduced. Parts need to be replaced.

  The present invention has been made in view of such circumstances, and can accurately fit a can into a mandrel, even if the can is not fitted into a mandrel. It is an object of the present invention to provide a can conveying apparatus that can prevent other cans from continuing to become defective cans in a chain and can extend the life of a component of a slapper.

In order to achieve the above object, the present invention proposes the following means.
That is, the present invention has a disc shape, and a plurality of turrets that are rotated toward the conveyance direction of the can out of the circumferential direction around the central axis and the outer peripheral portion of the turret are provided at equal intervals, A bottomed cylindrical can is supported so that its can axis is arranged parallel to the central axis of the turret, a chute for feeding the can to the pocket, and the central axis of the turret with respect to the pocket A plurality of mandrels arranged in one direction which is the mouth side of the can supported by the pocket in the direction, and move toward the transport direction so as to synchronize with the pocket; It is arranged on the other side, which is the bottom side of the can supported by the pocket, in the central axis direction of the turret, extends along the transport direction, and gradually inclines toward the one side toward the transport direction. A slapper having a base end in the transport direction that is cantilevered and a free end at the tip, and the can supported by the pocket by rotating the turret in the transport direction, A can conveying device in which the bottom of the can is pushed toward the one side while being in sliding contact with the slapper, and the mouth of the can is fitted into the mandrel, wherein the slapper includes a first elastic body, A second elastic body that extends along the first elastic body and is longer in the transport direction than the first elastic body, a base end portion of the first elastic body in the transport direction, and the second elastic body . The base end of the elastic body in the transport direction is disposed at the same position in the transport direction .

  According to the can conveyance device of the present invention, when the turret rotates and the can supported by the pocket is conveyed in the conveyance direction, the bottom of the can first has a first elastic body (and a first slapper). (2 elastic body) and then the mouth is pushed into the mandrel while being in sliding contact with the second elastic body which is longer in the transport direction than the first elastic body. With such a configuration, the following effects can be obtained.

  That is, when a defective can is transported and its mouth portion is not fitted to the mandrel, the defective can has a first elastic body and a second elastic body on the downstream side in the transport direction (near the tip of the first elastic body). The elastic body is pushed down to the other side to be elastically deformed. However, when the elastic body is further transported to the downstream side, the elastic body is removed from the first elastic body to the downstream side, and the first elastic body is deformed and deformed. The normal can on the upstream side in the transport direction following the defective can is transported with high precision while the bottom portion thereof is in sliding contact with the restored first elastic body, and the mouth portion is fitted to the mandrel.

Then, while the normal can moves on the first elastic body, the defective can is removed from the apparatus by dropping from the second elastic body, and the second elastic body is restored and deformed. . The normal can fitted to the mandrel is pushed deeply into the mandrel while the bottom of the normal can is slidably contacted from the first elastic body to the restored second elastic body, and is stably supported by the mandrel.
In this way, when a can (defective can) is not fitted to a mandrel, it is possible to prevent other cans that follow the can from being reliably fitted to the mandrel and producing defective cans in a chain. .

Further, since the spring constant of the second elastic body that is long in the conveying direction is smaller than the spring constant of the first elastic body, it is easy to elastically deform, and in a normal state where normal cans are continuously conveyed The operation is as follows.
That is, the second elastic body is elastically deformed to the other side to some extent by the pressing force of the can located downstream in the transport direction, but the first elastic body is as elastic as the second elastic body because of its large spring constant. The other can following the can is not accurately deformed and is accurately conveyed on the first elastic body. Since the second elastic body is restored and deformed while the other can moves on the first elastic body, the other can that has reached the downstream side moves from the first elastic body to the second elastic body. As it moves smoothly, it fits into the mandrel with high precision and is pushed deeply to support it stably.

In addition, since it is not necessary to increase the inclination for the purpose of easily restoring and deforming the slapper as in the prior art, the inclination of the slapper can be set gently and the wear of the slapper can be reliably suppressed, and the life of the part can be extended. .
As described above, according to the present invention, it is possible to improve the productivity by eliminating the waste of material costs (cans) and to reduce the equipment costs.

  Further, in the can conveying apparatus according to the present invention, the first elastic body and the second elastic body are connected to each other at a proximal end portion in the conveying direction and separated from each other at a distal end portion in the conveying direction. It is good as well.

  In this case, since the first elastic body and the second elastic body are connected to each other at the base end portion (upstream side portion) in the transport direction, a step is hardly generated between the first and second elastic bodies. Can transport cans more smoothly. Furthermore, if the first elastic body and the second elastic body are integrally formed, the number of members used can be reduced.

  Further, in the can conveying apparatus according to the present invention, the slapper faces the one side and is slidably contacted with the bottom of the can, and is disposed on the other side of the sliding member. A plate-like elastic member that can be elastically deformed integrally with the moving member.

In this case, the sliding member ensures slipperiness between the scraper and the bottom of the can, and the can is smoothly transported. Further, the elastic member surely elastically deforms and restores the slapper, and the mouth portion of the can is accurately and stably fitted to the mandrel by the above-described action.
That is, conventionally, since the slapper was formed of a single material made of a resin material or the like, it was difficult to ensure both slipperiness and elasticity. However, according to the present invention, both of these functions can be easily and reliably performed. . In addition, by using a material that considers slipping and wear resistance as the sliding member, damage to the bottom of the can during high-speed operation can be prevented, and the supply of the can to the mandrel becomes smoother. preferable.

  In the can conveying apparatus according to the present invention, the second elastic body may be formed so as to sandwich the first elastic body from both sides along the radial direction of the turret.

  In this case, since the second elastic body that acts to push the can deeply into the mandrel on the downstream side in the transport direction is formed so as to sandwich the first elastic body, the second elastic body stabilizes the bottom of the can. And easy to push.

  Moreover, in the can conveying apparatus according to the present invention, the length from the proximal end portion to the distal end portion of the first elastic body is 0.5 with respect to the arrangement interval P between the pockets adjacent in the conveying direction. × P to 1.0 × P, and the length from the proximal end portion to the distal end portion of the second elastic body is 0.8 × P to 2.5 × P with respect to the arrangement interval P. It may be set.

  In this case, since the length of the first elastic body is set to 0.5 × P to 1.0 × P with respect to the arrangement interval P between the pockets, the defective can is conveyed to the first elastic body. A normal can following the defective can is disposed at the base end of the first elastic body when positioned near the tip of the first elastic body. Then, in an initial stage where the normal can starts moving on the first elastic body, the defective can moves from the first elastic body to the downstream side and moves onto the second elastic body, and the first elastic body is restored. Deform. As a result, the normal can is accurately conveyed on the first elastic body, and its mouth is securely fitted to the mandrel.

  Furthermore, since the length of the second elastic body is set to 0.8 × P to 2.5 × P with respect to the arrangement interval P between the pockets, the normal can as described above has the first elasticity. While moving on the body, the defective can is removed downstream from the second elastic body, and the second elastic body is deformed and deformed. As described above, since the second elastic body is reliably restored and deformed before the normal can moves from the first elastic body to the second elastic body, the bottom of the normal can has the first elastic body. Then, it is pushed deeply into the mandrel while being brought into sliding contact with the second elastic body after being restored and deformed, and is stably supported by the mandrel.

  According to the can conveying device of the present invention, the can can be accurately fitted to the mandrel, and even if the can is not fitted to the mandrel, other cans following the can can be chained. Therefore, it is possible to prevent defective cans and to extend the life of the components of the slapper.

It is a front view explaining the principal part of the conveying apparatus of the can which concerns on one Embodiment of this invention. It is a figure which shows the AA cross section of FIG. 1, and is a figure explaining the can, the mandrel, and the wrapper which are conveyed. In FIG. 2, it is a figure explaining operation | movement of the slapper when a defective can is conveyed. It is a figure which shows the elastic member of the slapper of FIG. It is a figure explaining the modification of the slapper of this embodiment. It is a figure explaining the can, mandrel, and sparper which are conveyed in the conventional can conveyance device. In FIG. 6, it is a figure explaining operation | movement of the slapper when a defective can is conveyed.

Embodiments of the present invention will be described below with reference to the drawings.
The can conveying apparatus 1 according to the present embodiment is provided in the printing machine in a can manufacturing facility including a molding machine and a printing machine. The can manufacturing facility forms a plate-like substrate into a bottomed cylindrical can 100 by a molding machine, and prints the body of the can 100 by a printing machine.
1 and 2, the can conveying device 1 fits the can 100, which is fed from the molding machine to the printing machine in the direction indicated by the symbol X, with the mandrel 20 while being conveyed in the conveying direction C. And in a printing machine, printing is performed by transferring ink from a blanket to the trunk | drum of the can 100 with which the mandrel 20 was mounted | worn.

  The can conveyance device 1 has a disc shape, and is spaced apart from the turret 2 rotated in the conveyance direction C of the can 100 in the circumferential direction around the central axis and the outer peripheral portion of the turret 2. A plurality of bottomed cylindrical cans 100 are supported such that the can axis is arranged in parallel to the central axis of the turret 2, a chute 4 for feeding the can 100 to the pocket 3, and a pocket 3 On the other hand, in the direction of the central axis of the turret 2, it is disposed on one side (upper side in FIG. 2) that is the mouth 100 b side of the can 100 supported by the pocket 3, and the conveyance direction is synchronized with the pocket 3. The other side on the bottom 100a side of the can 100 supported by the pocket 3 in the central axis direction of the turret 2 with respect to the plurality of mandrels 20 moving toward C and the pocket 3 (lower side in FIG. 2) Arranged along the conveyance direction C The base end portion (left end portion in FIG. 2) in the transport direction C is cantilevered and the tip end portion (right end portion in FIG. 2) is supported in a cantilever manner. And a free end Slapper 5. Then, when the turret 2 rotates in the conveyance direction C, the can 100 supported by the pocket 3 is pushed toward the one side while sliding the bottom portion 100 a against the slapper 5. 100 a is fitted to the mandrel 20.

  FIG. 1 is a front view of the can conveyance device 1 as viewed from the central axis direction of the turret 2, and a part of the outer peripheral portion of the turret 2 is shown in this front view. A plurality of can conveying members 6 having the pockets 3 are arranged on the outer peripheral portion of the turret 2 evenly in the circumferential direction. The can conveying member 6 has a concave shape so that an outer surface facing the radially outward side is greatly cut out, and the concave portion is a pocket 3. Further, the portion of the can conveying member 6 on the side opposite to the conveying direction C of the pocket 3 (that is, the upstream side in the conveying direction C) is inclined so as to gradually go inward in the radial direction of the turret 2 toward the opposite side. It is formed so as to be smoothly connected to the end portion of the pocket 3 of the other can transport member 6 adjacent to the opposite side of the can transport member 6 on the transport direction C side.

  The pocket 3 is formed so as to open toward the radially outer side and the conveyance direction C, and a cross section perpendicular to the central axis of the turret 2 has a concave arc shape. Specifically, the curvature radius of the cross section of the pocket 3 is set to be substantially the same as the curvature radius of the outer peripheral surface of the cross section of the can 100, and the inner surface of the pocket 3 is supported by the pocket 3. However, the outer peripheral surface of the can 100 is brought into contact with about 1/3 of the circumferential direction with almost no gap.

  The chute 4 is formed in a cylindrical shape, a frame shape, or the like capable of rolling the can 100 inside, and a tip thereof opens toward the outer peripheral portion of the turret 2. Then, when the can conveyance member 6 moving in the conveyance direction C approaches the tip opening of the chute 4 and passes in front of the tip opening, the cans 100 are sequentially delivered to the pockets 3 of the can conveyance members 6. It has become.

  In FIG. 2, the mandrel 20 has a columnar shape, and its axis extends in parallel to the central axis of the turret 2. A plurality of mandrels 20 are arranged so as to be positioned on a substantially extended line of the can axis of the can 100 supported by each pocket 3, and can be moved in the conveyance direction C so as to be synchronized with the movement of the can conveyance member 6. Has been. The outer diameter of the other end portion of the mandrel 20 is set slightly smaller than the inner diameter of the mouth portion 100b of the can 100, and the mouth portion 100b of the can 100 can be fitted to the end portion. A hole (not shown) for vacuum suction of the can 100 is opened at the other end of the mandrel 20.

  In FIG. 1, the slapper 5 has a strip shape extending linearly along the transport direction C, and the base end portion in the transport direction C is supported by the base 7. The base 7 is disposed on the other side of the can transport member 6 between the front end opening of the chute 4 and the can transport member 6 that passes in front of the front end opening. The surface facing the one side of the base 7 is formed of a material having good slidability.

  The slapper 5 includes a first elastic body 8 and a second elastic body 9 that extends along the first elastic body 8 and is longer in the transport direction C than the first elastic body 8. In this embodiment, the 1st elastic body 8 and the 2nd elastic body 9 are mutually connected by the base end part of the conveyance direction C, are supported by the base 7, and are mutually isolate | separated by the front-end | tip part of the conveyance direction C. . Specifically, the first elastic body 8 and the second elastic body 9 have portions other than the base end portion separated from each other and can be elastically deformed independently of each other.

  In the front view shown in FIG. 1, the first elastic body 8 has an I-shaped surface exposed on one side, and the second elastic body 9 has a U-shaped exposed surface. The second elastic body 9 is formed so as to sandwich the first elastic body 8 in the width direction from both sides along the radial direction of the turret 2 and to surround the end of the first elastic body 8 on the conveyance direction C side. ing.

  The length (length along the transport direction C) L1 from the base end portion to the tip end portion of the first elastic body 8 is 0.5 with respect to the arrangement interval P between the pockets 3 adjacent in the transport direction C. The length L2 from the proximal end portion to the distal end portion of the second elastic body 9 is set to 0.8 × 1.0 × P, and the length L2 from the proximal end portion to the arrangement interval P is 0.8 × P to 2.5 × P Is set to Note that the lengths L1 and L2 referred to here are portions of the first and second elastic bodies 8 and 9 that are exposed on one side located on the transport direction C side of the base 7 (that is, of the can 100). This is the length of the portion slidably contacted with the bottom 100a. Further, the arrangement interval P between the pockets 3 adjacent to each other in the transport direction C is an inter-axis distance between the can shafts of the can 100 supported by the pockets 3. Further, the length (width) in the radial direction of the slapper 5 as a whole is about the radius of the can 100.

  Further, as shown in FIG. 2, the inclination angle θ that is inclined toward one side as the slapper 5 moves in the transport direction C is set in a range of 3 ° to 11 °. In the present embodiment, the inclination angle θ is about 7.5 °.

  The slapper 5 faces one side and is slidably contacted with the bottom 100a of the can 100, and is disposed on the other side of the sliding member 10 so as to be elastically deformed integrally with the sliding member 10. And a plate-like elastic member 11. The sliding member 10 is made of a material excellent in slipperiness and wear resistance. Specifically, for example, PET resin, PEEK resin, or the like is used. The elastic member 11 is a metal leaf spring or the like.

  FIG. 4 is a front view showing the elastic member 11 of the slapper 5. The elastic member 11 has a long strip shape in the transport direction C, and a rectangular base end portion (left end portion in FIG. 4) 11 </ b> A is fixedly supported on the base 7. Further, among the portions other than the base end portion 11A of the elastic member 11 (the right side portion of the base end portion 11A in FIG. 4), an I-shaped first elastic body portion 11B at the center in the width direction (vertical direction in FIG. 4). A U-shaped second elastic body portion 11C is formed so as to sandwich the first elastic body portion 11B from both sides in the width direction.

  Also, what is indicated by reference numeral 12 in the figure is a mounting screw hole that penetrates the elastic member 11 in the thickness direction. A screw is inserted into the mounting screw hole 12 toward one side and the sliding member 10 By being screwed into a screw hole (not shown), the elastic member 11 and the sliding member 10 are integrated. Instead of using the screw, the elastic member 11 and the sliding member 10 may be integrally laminated using an adhesive, a double-sided adhesive tape, or the like.

  The sliding member 10 has a long strip shape in the conveyance direction C, and the outer shape of the sliding member 10 is larger in the length direction (left-right direction in FIG. 4) and in the width direction than the outer shape of the elastic member 11. It is substantially the same and is slightly larger in the thickness direction. Although not specifically illustrated, the sliding member 10 also has a rectangular base end portion 10A, an I-shaped first elastic body portion 10B, and a U-shaped second elastic body portion 10C, similarly to the elastic member 11. Is formed.

In the slapper 5 in which the sliding member 10 and the elastic member 11 are laminated, the first elastic body portions 10B and 11B are integrated to form the first elastic body 8, and the second elastic body portions 10C and 11C are integrated. Thus, the second elastic body 9 is formed, and the base end portions 10 </ b> A and 11 </ b> A are integrated and fixed to the base 7.
As described above, the first and second elastic bodies 8 and 9 of the slapper 5 are integrally formed and are made of the same material as each other, so that the spring constant of the first elastic body 8 is long in the transport direction C. The spring constant of the second elastic body 9 is small.

  According to the can conveying device 1 according to the present embodiment configured as described above, when the turret 2 rotates around the central axis and the can 100 supported by the pocket 3 is conveyed in the conveying direction C, The bottom of the can 100 is first slidably contacted with the first elastic body 8 (and the second elastic body 9) of the slapper 5, and then the second elastic body 9 that is longer in the transport direction C than the first elastic body 8. The mouth part 100 b is pushed into the mandrel 20 while being in sliding contact. With such a configuration, the following effects can be obtained.

  That is, when the defective can 100Z is transported and its mouth portion 100b is not fitted to the mandrel 20, the defective can 100Z itself is on the downstream side in the transport direction C (near the tip of the first elastic body 8). While being crushed, the first elastic body 8 and the second elastic body 9 are pushed down to the other side to be elastically deformed, but when further conveyed downstream, the first elastic body 8 is removed from the downstream side, and the The first elastic body 8 is restored and deformed (see FIG. 3). The normal can 100 on the upstream side in the transport direction C following the defective can 100Z is transported with high precision while the bottom 100a is in sliding contact with the restored first elastic body 8 as shown by a two-dot chain line in FIG. Then, the mouth portion 100 b is fitted to the mandrel 20.

While the normal can 100 moves on the first elastic body 8, the defective can 100 </ b> Z is removed from the second elastic body 9 on the downstream side or the outside by the dropping can, and the second elasticity The body 9 is restored and deformed. As shown in FIG. 2, the normal can 100 fitted to the mandrel 20 is slidably brought into contact with the bottom elastic body 100a from the first elastic body 8 to the second elastic body 9 after deformation. The mandrel 20 is stably supported. In addition, when the mouth part 100b of the can 100 is fitted to the mandrel 20, vacuum suction is performed from the hole at the other end of the mandrel 20, and the mouth part 100b is easily fitted deeper. ing.
Thus, even when the can 100 (defective can 100Z) is not fitted to the mandrel 20, the other can 100 following the can 100 (defective can 100Z) is reliably fitted to the mandrel 20. It is possible to prevent defective cans from being produced in a chain.

Further, since the spring constant of the second elastic body 9 that is long in the transport direction C is smaller than the spring constant of the first elastic body 8, it is easily elastically deformed, and the normal can 100 is continuously transported. In a normal state, the following operation is performed.
That is, the second elastic body 9 is elastically deformed to the other side to some extent by the pressing force of the can 100 located on the downstream side in the transport direction C (near the tip of the first elastic body 8). Since the spring constant is large, it is not elastically deformed as much as the second elastic body 9, and the other can 100 following the can 100 is conveyed on the first elastic body 8 with high accuracy. Since the second elastic body 9 is restored and deformed while the other can 100 moves on the first elastic body 8, the other can 100 reaching the downstream side is second from the first elastic body 8. While moving smoothly onto the elastic body 9, it fits into the mandrel 20 with high precision and is pushed deeply, and is supported stably. Specifically, in the present embodiment, for example, the can can be stably transported (produced) even at 2000 cpm.

  Further, unlike the conventional case (see FIG. 6), it is not necessary to increase the inclination for the purpose of easily restoring and deforming the slapper 110. Therefore, in the present embodiment, the inclination angle θ of the slapper 5 is 3 ° to 11 °. It is set as small as °. As described above, since the inclination angle θ of the slapper 5 can be set gently, the frictional resistance between the slapper 5 and the bottom 100a of the can 100 is sufficiently reduced, and the wear of the slapper 5 is reliably suppressed, so that Life is extended. If the inclination angle θ is less than 3 °, the conveyance distance until the can 100 is fitted to the mandrel 20 becomes unnecessarily long, or the can 100 cannot be pushed into the mandrel 20 sufficiently. Further, when the tilt angle θ exceeds 11 °, the effect of suppressing the wear of the slapper 5 cannot be sufficiently obtained.

  As described above, according to the can conveying apparatus 1 of the present embodiment, it is possible to improve the productivity by reducing the waste of the material cost (can 100) and reduce the equipment cost.

  Moreover, since the 1st elastic body 8 and the 2nd elastic body 9 are mutually connected by the base end part (upstream part) of the conveyance direction C, between these 1st, 2nd elastic bodies 8 and 9 mutually. Steps are less likely to occur, and the can 100 can be transported more smoothly. Furthermore, if the 1st elastic body 8 and the 2nd elastic body 9 are integrally formed like this embodiment, the number of use members can be reduced.

  The slapper 5 has a double structure including a sliding member 10 and an elastic member 11. Therefore, the sliding member 10 ensures the sliding property between the scraper 5 and the bottom 100a of the can 100, and the can 100 is smoothly transported. In addition, the elastic member 11 surely elastically deforms and restores the slapper 5, and the opening 100 b of the can 100 is accurately and stably fitted to the mandrel 20 by the above-described action.

  That is, in the conventional configuration shown in FIG. 6, the slapper 110 is formed of a single material made of a resin material such as bakelite, and it is difficult to ensure both slipperiness and elasticity. Specifically, sufficient elasticity cannot be obtained to ensure slipperiness, and as shown in FIG. 6, a complicated configuration in which elastic restoring force is forcibly applied by the adjusting screw 120 is used, and adjustment work is performed. It required skill. On the other hand, according to the double-structured slapper 5 of the present embodiment shown in FIG. 2, the sliding property is ensured by the sliding member 10, the elasticity is ensured by the elastic member 11, and these are integrated. According to the configuration, the above-described functions (slidability and elasticity) can be easily and reliably achieved. Further, as in the present embodiment, the sliding member 10 is made of a material (PET resin, PEEK resin, etc.) taking into account slipperiness / abrasion resistance, so that the bottom 100a of the can 100 during high-speed operation can be obtained. Scratching is prevented, and the supply of the can 100 to the mandrel 20 becomes smoother, which is preferable.

  Moreover, since the 2nd elastic body 9 of the slapper 5 is formed so that the 1st elastic body 8 may be pinched | interposed into the width direction from the both sides along the radial direction of the turret 2, the length along the said width direction is ensured. Thus, the bottom 100a of the can 100 can be easily pushed in stably.

  Further, since the length L1 of the first elastic body 8 is set to 0.5 × P to 1.0 × P with respect to the arrangement interval P between the pockets 3, the defective can 100Z is conveyed and the first When positioned near the distal end portion of the first elastic body 8, the normal can 100 following the defective can 100 </ b> Z is disposed at the proximal end portion of the first elastic body 8. Then, in the initial stage where the normal can 100 starts to move on the first elastic body 8, the defective can 100Z moves from the first elastic body 8 to the downstream side and moves onto the second elastic body 9, and the first can 1 The elastic body 8 is restored and deformed. Thereby, the normal can 100 is accurately transported on the first elastic body 8, and the mouth portion 100 b is securely fitted to the mandrel 20.

  Furthermore, since the length L2 of the second elastic body 9 is set to 0.8 × P to 2.5 × P with respect to the arrangement interval P between the pockets 3, the normal can 100 as described above. While moving on the first elastic body 8, the defective can 100Z is moved downstream from the second elastic body 9, and the second elastic body 9 is deformed and deformed. Thus, since the second elastic body 9 is surely restored and deformed before the normal can 100 moves from the first elastic body 8 onto the second elastic body 9, the normal can 100 has a bottom portion thereof. 100a is pushed deeply into the mandrel 20 while sliding from the first elastic body 8 to the second elastic body 9 after being deformed and deformed, and is stably supported by the mandrel 20.

In addition, this invention is not limited to the above-mentioned embodiment, A various change can be added in the range which does not deviate from the meaning of this invention.
For example, in the above-described embodiment, the first elastic body 8 and the second elastic body 9 of the slapper 5 are connected to each other at the base end in the transport direction C and supported by the base 7. It is not limited to. That is, the first elastic body 8 and the second elastic body 9 may be separated from each other and supported by the base 7.

  In addition, the first elastic body 8 has an I-shaped surface in sliding contact with the bottom 100a of the can 100, and the second elastic body 9 has a U-shaped surface in sliding contact. However, the present invention is not limited to this. Also, the second elastic body 9 sandwiches the first elastic body 8 in the width direction from both sides along the radial direction of the turret 2 and surrounds the end of the first elastic body 8 on the transport direction C side. Although formed, it is not limited to this.

What is shown in FIGS. 5A to 5C is a modification of the slapper 5 of the present embodiment. Note that the base end portion 5a (the left end portion in FIG. 5) supported by the base 7 in the slapper 5 is actually a portion other than the base end portion 5a (the base end portion 5a closer to the transport direction C side). It is formed so as to recede one step from the position (the portion exposed on one side and in sliding contact with the bottom 100a), but this is omitted in the figure.
In the example of FIG. 5A, the slapper 5 is formed to extend in an arc shape along the conveyance direction C. In this case, for example, the slapper 5 can be disposed on the can axis trajectory of the can 100 being conveyed, and the above-described pushing operation can be further stabilized. As described in the present embodiment, when the slapper 5 is formed in a straight line, the sliding contact portion of the bottom 100a of the can 100 with respect to the slapper 5 can be dispersed. Become.

  5B and 5C, the surfaces of the first and second elastic bodies 8 and 9 that are in sliding contact with the bottom 100a of the can 100 are both I-shaped. In FIG. 5 (b), the second elastic body 9 is disposed only outward in the radial direction of the turret 2 with respect to the first elastic body 8. Further, in FIG. 5C, two first elastic bodies 8 are provided on the radially outer side and the radially inner side of the second elastic body 9. Thus, the relative positions and shapes of the first elastic body 8 and the second elastic body 9 are not limited to the present embodiment, and a plurality of the first and second elastic bodies 8 and 9 are provided. May be.

DESCRIPTION OF SYMBOLS 1 Can conveyance apparatus 2 Turret 3 Pocket 4 Chute 5 Slapper 8 1st elastic body 9 2nd elastic body 10 Sliding member 11 Elastic member 20 Mandrel 100 Can 100a Can bottom part 100b Can mouth part C Conveying direction L1 1st elasticity Body length L2 Length of second elastic body P Pocket spacing

Claims (5)

A turret that has a disk shape and is rotated toward the conveyance direction of the can out of the circumferential direction around the central axis;
A plurality of outer peripheral portions of the turret are provided at equal intervals, and a bottomed cylindrical can is supported so that its can axis is arranged in parallel to the central axis of the turret;
A chute for feeding the can into the pocket;
A plurality of the pockets arranged on one side, which is the mouth side of the can supported by the pocket, in the central axis direction of the turret, and move in the transport direction so as to synchronize with the pocket The mandrel
With respect to the pocket, it is disposed on the other side, which is the bottom side of the can supported by the pocket, in the central axis direction of the turret, and extends along the transport direction and gradually toward the transport direction. A slapper that is inclined toward one side, a base end portion in the transport direction is cantilevered, and a tip end portion is a free end;
When the turret is rotated in the transport direction, the can supported by the pocket is pushed toward the one side with the bottom thereof being in sliding contact with the slapper, and the mouth of the can is fitted into the mandrel. A can conveying device,
The Slapper is
A first elastic body;
A second elastic body that extends along the first elastic body and is longer in the transport direction than the first elastic body ,
The can conveying apparatus , wherein a base end portion of the first elastic body in the transport direction and a base end portion of the second elastic body in the transport direction are arranged at the same position in the transport direction. . The can conveying device according to claim 1,
The can conveying apparatus, wherein the first elastic body and the second elastic body are connected to each other at a proximal end portion in the conveying direction and separated from each other at a distal end portion in the conveying direction. A can conveying device according to claim 1 or 2,
The Slapper is
A sliding member that faces the one side and is in sliding contact with the bottom of the can;
A can conveying apparatus comprising: a plate-like elastic member disposed on the other side of the sliding member and elastically deformable integrally with the sliding member. It is a can conveying device according to any one of claims 1 to 3,
The second elastic body is formed so as to sandwich the first elastic body from both sides along the radial direction of the turret. It is a can conveying device according to any one of claims 1 to 4,
The length from the proximal end portion to the distal end portion of the first elastic body is set to 0.5 × P to 1.0 × P with respect to the arrangement interval P between the pockets adjacent in the transport direction,
The length of the second elastic body from the proximal end portion to the distal end portion is set to 0.8 × P to 2.5 × P with respect to the arrangement interval P. .

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