JP2019119573A - Belt conveyor, jig and fixing method of conveyance belt - Google Patents

Abstract

To provide a belt conveyor capable of simply fixing a conveyance belt, to provide a jig used when fixing the conveyance belt, and to provide a fixing method of the conveyance belt to the belt conveyor.SOLUTION: A belt conveyor 20 having a constitution where a conveyance belt 23 is fixed to a plurality of pulleys 22 provided on a side surface 21M of a base member 21 comprises a jig mounting part 20S on which a jig 30 covering a group of pulleys 22 (pulley group 22G) around which the conveyance belt 23 is looped in advance out of the plurality of pulleys 22, from the side, is temporarily mounted when the fixing work of the conveyance belt 23 to the plurality of pulleys 22 is performed.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a belt conveyor having a configuration in which a conveyance belt is attached to a plurality of pulleys provided on the side surface of a base member, a jig used when attaching the conveyance belt to the belt conveyor, and attachment of the conveyance belt to the belt conveyor On the way.

  As the belt conveyor, for example, a substrate transport conveyor provided in a component mounting apparatus for mounting components on a substrate is known. The substrate transport conveyor has a function of carrying in, positioning, and unloading a substrate as a transport target into the component mounting apparatus. The conveyor belt of such a belt conveyor is a consumable item, and the operator replaces the conveyor belt as needed (see, for example, Patent Document 1 below).

  In the case where the worker attaches the transport belt to the belt conveyor in the replacement work of the transport belt, etc., the worker may select a group of pulleys of a plurality of pulleys (usually, a plurality of pulleys not separated from each other) After the conveyor belt is put on the pulleys of (1), the conveyor belt is put on the remaining pulleys at a position distant from the group of pulleys. At this time, the worker can set the side of the plurality of pulleys on which the conveyance belts have been attached to one side so that the conveyance belt does not fall off from the group of pulleys on which the conveyance belts have already been wound. While covering with the hand, while pulling the conveyor belt with the other hand, hang around the remaining pulleys.

Japanese Patent Application Laid-Open No. 10-242690

  However, as described above, while covering the side of a group of pulleys that has already been wound around the conveyor belt with one hand while pulling the conveyor belt with the other hand, the operation of hooking around the remaining pulleys is difficult. There was a problem that sex was not good.

  Then, an object of this invention is to provide the belt conveyor which can easily attach a conveyance belt, the jig used when attaching a conveyance belt, and the attachment method of a conveyance belt to a belt conveyor.

  The belt conveyor according to the present invention is a belt conveyor having a configuration in which a transport belt is attached to a plurality of pulleys provided on the side surface of a base member, and when the transport belt is attached to the plurality of pulleys. Among the plurality of pulleys, a jig mounting portion is provided for temporarily mounting a jig that laterally covers a group of pulleys on which the transport belt is wound around first.

  The jig according to the present invention is a jig temporarily attached to a belt conveyor having a configuration in which a conveyance belt is attached to a plurality of pulleys provided on the side surface of a base member, and the state attached to the belt conveyor Then, when the mounting operation of the conveyor belt to the plurality of pulleys is performed, a group of pulleys in which the conveyor belt is first wound around among the plurality of pulleys is laterally covered.

  The method for attaching a conveyor belt according to the present invention is a conveyor belt attaching method for attaching the conveyor belt to the plurality of pulleys in a belt conveyor having a constitution in which the conveyor belts are attached to a plurality of pulleys provided on a side surface of a base member. And mounting a jig on the belt conveyor in which the transfer belt is wound around the group of pulleys in the first step of rotating the transfer belt around the group of pulleys of the plurality of pulleys. And a second step of laterally covering the group of pulleys by the jig, and the group of pulleys among the plurality of pulleys included in the belt conveyor which laterally covers the group of pulleys by the jig A third step of looping the conveyor belt around the remaining pulleys at a distant position, and the belt control in which the conveyor belt is looped around the remaining pulleys From A and a fourth step of removing the jig.

  According to the present invention, the conveyor belt can be easily attached to the belt conveyor.

The perspective view of the component mounting apparatus in 1st Embodiment of this invention The perspective view of the positioning conveyer which comprises the board | substrate conveyance conveyer of the component mounting apparatus in 1st Embodiment of this invention (A) A perspective view of a carrying-in conveyor which comprises the board | substrate conveyance conveyor of the component mounting apparatus in 1st Embodiment of this invention (b) The perspective view of a carrying out conveyor (A) (b) A perspective view showing a belt conveyor which constitutes a positioning conveyor of a component mounting apparatus according to an embodiment of the present invention, together with a jig mounted on the belt conveyor (A) (b) Side view showing the belt conveyor and the jig in the first embodiment of the present invention (A) (b) Sectional drawing which shows the belt conveyor and jig | tool in 1st Embodiment of this invention (A) (b) A perspective view showing a belt conveyor and a jig in the first embodiment of the present invention (A) (b) Side view showing the belt conveyor and the jig in the first embodiment of the present invention (A) (b) The perspective view which shows the belt conveyor and jig | tool in 2nd Embodiment of this invention (A) (b) A cross-sectional view showing a part of a belt conveyor and a jig in a second embodiment of the present invention A side view showing a part of a belt conveyor and a jig in a second embodiment of the present invention (A) (b) The perspective view which shows the belt conveyor and jig | tool in 3rd Embodiment of this invention (A) (b) Sectional drawing which shows the belt conveyor and jig | tool in 3rd Embodiment of this invention

First Embodiment
FIG. 1 shows an example of a component mounting apparatus 1 to which a belt conveyor according to a first embodiment of the present invention is applied. The component mounting apparatus 1 is a working apparatus for mounting a component PT on a substrate KB, and includes a base 11, a substrate transport conveyor 12, a parts feeder 13, a head moving mechanism 14, and a mounting head 15. Here, for convenience of description, the left-right direction of the base 11 viewed from the operator OP is taken as an X-axis direction, and the front-back direction of the base 11 viewed from the operator OP is taken as a Y-axis direction. Also, the vertical direction is taken as the Z-axis direction.

  In FIG. 1, a substrate transport conveyor 12 is provided on a base 11, and transports the substrate KB in the X-axis direction. The substrate transport conveyor 12 includes a carry-in conveyor 12A, a positioning conveyor 12B, and a carry-out conveyor 12C. The carry-in conveyor 12A carries in the substrate KB sent from the upstream process side. The positioning conveyor 12B receives the substrate KB carried in by the carry-in conveyor 12A and positions it at a predetermined work position. The delivery conveyor 12C receives the substrate KB delivered by the positioning conveyor 12B and delivers it to the downstream process side.

  FIG. 2 shows a positioning conveyer 12B that constitutes the substrate transfer conveyer 12. The positioning conveyor 12B has a configuration in which two belt conveyors 20 having a symmetrical structure with respect to the XZ plane are disposed to face each other in the Y-axis direction. Each belt conveyor 20 includes a base member 21, a plurality of pulleys 22, and a transport belt 23. The base member 21 is a plate-like member extending in the X-Z direction in the XZ plane. The plurality of pulleys 22 are provided on the side surface 21M inside the base member 21 (the side facing the center of the substrate conveyance conveyor 12), and are rotatable around an axis (Y axis) perpendicular to the side surface 21M. .

  In FIG. 2, one of the plurality of pulleys 22 is a drive pulley (denoted by reference numeral 22K) rotationally driven by a conveyor drive motor 24 attached to the base member 21. Meanwhile, the other pulleys 22 among the plurality of pulleys 22 are driven pulleys. When the conveyor drive motor 24 rotationally drives the drive pulley 22 K, the transport belt 23 travels while the other pulley 22 (follower pulley) is driven to rotate. When the two conveyor drive motors 24 provided in the two belt conveyors 20 simultaneously and in the same direction cause the two conveyor belts 23 to travel at the same speed, the substrate KB supported at both ends by the two conveyor belts 23 is in the X axis direction It is transported.

  As shown in FIGS. 3 (a) and 3 (b), as in the case of the positioning conveyor 12B, the two conveyors 20 having symmetrical structures with respect to the XZ plane are disposed facing each other in the Y-axis direction. It has the following configuration. Each belt conveyor 20 includes a base member 21, a plurality of pulleys 22, and a conveyor belt 23. When the conveyor drive motor 24 rotates the drive pulley 22K, the conveyor belt 23 follows the other pulleys 22 (follower pulleys). Run while rotating. Also in the carry-in conveyor 12A and the carry-out conveyor 12C, as in the case of the positioning conveyor 12B, when the two conveyor drive motors 24 provided in the two belt conveyors 20 simultaneously and simultaneously move the two transport belts 23 at the same speed, The substrate KB whose both ends are supported by the two transport belts 23 is transported in the X-axis direction.

  In FIG. 1, the parts feeder 13 is attached to a feeder base 11 F connected to the base 11. A plurality of part feeders 13 are attached side by side in the X-axis direction to the feeder base 11F. Each part feeder 13 comprises, for example, a tape feeder, and supplies parts PT from a part supply port 13 K provided at an end near the substrate transport conveyor 12.

  The head moving mechanism 14 comprises, for example, an XY-axis robot, and moves the mounting head 15 in the horizontal direction. As shown in FIG. 1, the mounting head 15 is provided with a plurality of nozzles 15N extending downward. A vacuum suction force can be generated at the lower end of each nozzle 15N.

  When mounting the component PT on the substrate KB by the component mounting apparatus 1, first, the substrate transport conveyor 12 carries in the substrate KB supplied from the upstream process side and positions it at the work position. When the substrate transport conveyor 12 positions the substrate KB at the work position, each part feeder 13 supplies the part PT to the part supply port 13K, and the mounting head 15 sucks the part PT supplied by the part feeder 13 by the nozzle 15N. The operation of mounting on the substrate KB is repeated. Thus, when the component mounting operation on the substrate KB is completed, the substrate transport conveyor 12 carries the substrate KB out of the component mounting apparatus 1.

  When replacing the transport belt 23 of the belt conveyor 20 in the substrate transport conveyor 12 provided in such a component mounting apparatus 1, the operator OP removes the transport belt 23 to be replaced from the pulley 22, and then a new transport belt The work of attaching 23 to the pulley 22 is performed. Hereinafter, the procedure of the belt attachment work (attachment method of the conveyance belt 23) which attaches the conveyance belt 23 to the belt conveyor 20 with which the positioning conveyor 12B is provided will be described.

  In the belt attachment operation, first, as shown in FIGS. 4A and 5A, the operator OP is a part of the plurality of pulleys 22 provided on the base member 21 and the base member 21. The conveyor belt 23 is looped around a group of pulleys 22 (hereinafter referred to as a pulley group 22G) closely located on one end side of the belt (first step). Then, once the conveyor belt 23 is wound around the pulley group 22G, a jig 30 for preventing the belt coming off is temporarily attached to the upper portion 21J of the base member 21 of the belt conveyor 20 (FIG. 4 (a) → FIG. b) and FIG. 5 (a) → FIG. 5 (b)). As a result, the pulley group 22G on which the conveyance belt 23 is wound is covered by the jig 30 from the side (the side opposite to the base member 21) (FIGS. 4 (b) and 5 (b)). The second step). That is, in a state where the jig 30 is mounted on the belt conveyor 20, the jig 30 covers the group of pulleys 22 (pulley group 22G) of the plurality of pulleys 22 on which the transport belt 23 is first wound. There is. Further, in the first embodiment, the upper portion 21J of the base member 21 is a jig mounting portion 20S to which the jig 30 is temporarily mounted.

  Here, as shown in FIGS. 6 (a) and 6 (b), which are cross-sectional views seen from arrows V-V in FIGS. 4 (a) and 4 (b) and 5 (a) and 5 (b), respectively. The fixture 30 has a horizontal ceiling surface 31, a flat plate portion 32 extending downward from one side of the ceiling surface 31, and an extension portion 33 extending downward from the other side opposite to the one side of the ceiling surface 31. ing. The jig 30 is mounted on the belt conveyor 20 so as to sandwich the upper portion 21J (the jig mounting portion 20S) of the base member 21 from the side between the flat plate portion 32 and the extension portion 33. In a state where the jig 30 is mounted on the belt conveyor 20, the flat plate portion 32 is positioned to the side of the pulley group 22G (FIG. 6B), and the conveyor belt 23 wound around the pulley group 22G is the pulley group 22G. It is prevented from falling out of each pulley 22 which comprises these.

  As shown in FIGS. 4 (a) and 4 (b) and FIGS. 5 (a) and 5 (b), in the flat plate portion 32 of the jig 30, the state in which the jig 30 is attached to the belt conveyor 20 is visually observed. The mark 34 which can be recognized is drawn. For this reason, even if the operator OP leaves the site during the belt attachment operation, another person can recognize that the belt conveyor 20 is in the belt attachment operation.

  When the operator OP mounts the jig 30 on the jig mounting portion 20S of the belt conveyor 20, the worker OP separates from the group of pulleys 22G which has already been wound around the transport belt 23 among the plurality of pulleys 22 of the belt conveyor 20. The conveyor belt 23 is looped around the remaining one pulley 22 in the above position (FIGS. 7 (a) and 8 (a). Third step). At this time, the operator OP pulls the transfer belt 23 and hooks the transfer belt 23 around the remaining pulleys 22. However, since the pulley group 22G which has already been passed through the transfer belt 23 is covered by the jig 30, During the operation, the operator OP does not have to consider the situation where the transport belt 23 drops out of the pulley group 22G. Therefore, the worker OP can use both hands for the operation of hooking the conveyor belt 23 around the remaining pulleys 22 and can perform the operation easily and in a short time.

  After the operator OP rotates the conveyor belt 23 around the remaining pulleys 22, the jig 30 is removed from the belt conveyor 20 (FIG. 7 (a) → FIG. 7 (b) and FIG. 8 (a) → FIG. 8 (b) 4th step). Thus, the belt attachment operation for attaching the transport belt 23 to the belt conveyor 20 is completed. As described above, the flat portion 32 of the jig 30 is drawn with the mark 34 which can visually recognize the state in which the jig 30 is mounted on the belt conveyor 20. Even if the jig 30 is forgotten to be removed, it is easy to notice this.

Second Embodiment
FIGS. 9A and 9B and FIGS. 10A and 10B show a belt conveyor 20 and a jig 30 according to a second embodiment of the present invention. In the second embodiment, each pulley 22 of the pulley group 22G covered from the side by the jig 30 is made of a magnetic material, while one surface of the plate-shaped jig 30 (covers the pulley group 22G A plurality of plate-like (here, disk-like) magnets 30M are attached to the side surface).

  When the jig 30 is mounted on the belt conveyor 20, the jig 30 is brought close to the pulley group 22G so that the magnet 30M faces the pulley group 22G, and the magnet 30M and the magnetic material (pulley group 22G) are attracted by magnetic force. Thus, in the second embodiment, the jig mounting portion 20S of the belt conveyor 20 is a jig in the second embodiment as described above (FIG. 9A → FIG. 9B and FIG. 10A → FIG. 10B). A group of pulleys 22 (a group of pulleys 22G) which are laterally covered by 30. The jig 30 is adapted to be attached to the group of pulleys 22 (a group of pulleys 22G) by magnetic force.

  In the state where the jig 30 is mounted on the belt conveyor 20, the jig 30 covers the pulley group 22G from the side (FIG. 11), and thus, the conveyor belt 23 is wound and conveyed from the pulley group 22G. The belt 23 is prevented from falling off. The procedure of the belt attaching operation in the second embodiment is the same as the procedure of the belt attaching operation in the first embodiment.

Third Embodiment
FIGS. 12 (a), (b) and FIGS. 13 (a), (b) show a belt conveyor 20 and a jig 30 in the third embodiment of the present invention. In the third embodiment, the jig mounting portion 20S of the belt conveyor 20 is the upper portion 21J of the base member 21. The jig 30 is configured to have a horizontal ceiling surface 31 and a flat plate portion 32 extending downward from one side of the ceiling surface 31.

  In FIGS. 12A and 12B and FIGS. 13A and 13B, the upper portion 21J of the base member 21 which is the jig mounting portion 20S is provided with a plurality of projections 21T projecting upward. . The ceiling surface 31 is provided with a plurality of engagement holes 31H with which the plurality of projections 21T of the base member 21 engage.

  When mounting the jig 30 on the belt conveyor 20, the plurality of engagement holes 31H are engaged with the plurality of projections 21T (that is, the ceiling surface 31 is engaged with the upper portion 21J of the base member 21) (FIG. 12A) → Fig. 12 (b) and Fig. 13 (a) → Fig. 13 (b). In the state where the jig 30 is mounted on the belt conveyor 20, the jig 30 covers the pulley group 22G from the side (FIG. 13 (b)). Falling of the transport belt 23 from the group 22G is prevented. In addition, the procedure of the belt attachment work in 3rd Embodiment is the same as the case of 1st Embodiment.

  As described above in the first embodiment, the second embodiment, and the third embodiment, when attaching the transport belt 23 to the belt conveyor 20, one of the plurality of pulleys 22 provided on the base member 21 is firstly attached. By mounting a jig 30 covering a group of pulleys 22 (pulley group 22G) wound around the conveyance belt 23 from the side to the belt conveyor 20, the conveyance belt 23 is pulled from the pulley group 22G already finished. It is possible to prevent 23 from falling off. For this reason, the operator OP can easily attach the transport belt 23 using both hands without considering the situation where the transport belt 23 falls off from the pulley group 22G which has already been wound and passed around the transport belt 23.

  Although the embodiments of the present invention have been described above, the present invention is not limited to those described above, and various design changes and the like are possible. For example, in the above-mentioned embodiment, after attaching the jig 30 which covers the group of pulleys 22 (pulley group 22G) on which the conveyance belt 23 is wound from the side, the group of pulleys 22 (pulley group 22G) Although the conveyor belt 23 is looped around the remaining one pulley 22 at a distant position, the number of the remaining pulleys 22 may be two or more instead of one.

  Further, in the above embodiment, the mark 30 is provided on the jig 30 so that the operator OP and other persons can visually recognize the state in which the jig 30 is attached to the belt conveyor 20. In this embodiment, instead of providing the mark 34 on the jig 30, or providing the mark 34, the color that is conspicuous in the jig 30 (the state in which the jig 30 is attached to the belt conveyor 20 is visually Color that can be recognized).

  Provided are a belt conveyor which can easily attach a conveyor belt, a jig used when attaching the conveyor belt, and a method of attaching the conveyor belt to the belt conveyor.

Reference Signs List 20 belt conveyor 20S jig mounting portion 21 base member 21M side surface 21J upper portion 22 pulley 22G pulley group (group of pulleys)
23 Conveyor belt 30 jig 31 ceiling surface 32 flat plate portion 33 extension portion 34 mark

Claims (10)

A belt conveyor having a configuration in which a transfer belt is attached to a plurality of pulleys provided on the side surface of a base member,
Among the plurality of pulleys, a jig that temporarily covers a group of pulleys on which the transport belt is looped is temporarily attached when the conveyance belt is attached to the plurality of pulleys. Belt conveyor equipped with a jig mounting unit.   The jig mounting portion is an upper portion of the base member, and the jig is a horizontal ceiling surface, a flat plate portion extending downward from one side of the ceiling surface, and another one facing the one side of the ceiling surface The flat member is mounted on the belt conveyor in a posture in which the upper portion of the base member is sandwiched from the side between the flat plate portion and the extension portion, and the flat plate portion is extended. The belt conveyor according to claim 1, wherein the belt conveyor is located on the side of the pulley.   The belt conveyor according to claim 1, wherein the jig mounting portion is the group of pulleys laterally covered by the jig, and the jig is mounted to the group of pulleys by magnetic force.   The jig mounting portion is an upper portion of the base member, and the jig has a horizontal ceiling surface and a flat portion extending downward from one side of the ceiling surface, and the ceiling surface is an upper portion of the base member The belt conveyor according to claim 1, wherein the belt conveyor is mounted on the belt conveyor to position the flat plate portion to a side of the group of pulleys. A jig temporarily attached to a belt conveyor having a configuration in which a conveyance belt is attached to a plurality of pulleys provided on a side surface of a base member,
In a state where the conveyor belt is mounted on the plurality of pulleys in a state of being mounted on the belt conveyor, a group of pulleys on which the conveyor belt is first wound around among the plurality of pulleys is viewed from the side. Jig to cover.   A flat ceiling surface, a flat plate portion extending downward from one side of the ceiling surface, and an extension portion extending downward from another side opposite to the one side of the ceiling surface; The jig according to claim 5, wherein the jig is mounted on the belt conveyor in a posture in which the upper portion of the base member is sandwiched from the side with the extension portion, and the flat plate portion is positioned to the side of the group of pulleys.   The jig according to claim 5, wherein the jig is mounted on the group of pulleys by a magnetic force.   It has a horizontal ceiling surface and a flat plate portion extending downward from one side of the ceiling surface, and the flat surface portion is mounted on the belt conveyor by engaging the ceiling surface with the upper portion of the base member, and the flat plate portion is assembled into the group The jig according to claim 5, wherein the jig is located on the side of the pulleys of (4).   The jig according to any one of claims 5 to 8, further comprising a mark or a color capable of visually recognizing the state of being mounted on the belt conveyor. In a belt conveyor having a configuration in which a transport belt is attached to a plurality of pulleys provided on a side surface of a base member, the transport belt is attached to the plurality of pulleys.
A first step of winding the transport belt around a group of pulleys of some of the plurality of pulleys;
Mounting a jig on the belt conveyor in which the conveyor belt is wound around the group of pulleys, and covering the group of pulleys from the side by the jig;
A third step of looping the transport belt around the remaining pulleys of the plurality of pulleys included in the belt conveyor that laterally covers the group of pulleys by the jig; When,
And a fourth step of removing the jig from the belt conveyor in which the conveyor belt is wound around the remaining pulleys.

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