JP5473120B2 - Dolly and chip collection system using dolly - Google Patents

Description

  The present invention relates to a carriage and a chip collection system using the carriage.

  With regard to the processing of chips with cutting oil attached, conventionally, in automobile parts factories, etc., chips that have fallen or accumulated from the processing machine to the coolant tank are discharged by a chip conveyor, etc. It collects in a powder container, and it is made to carry out of a factory with the trolley | bogie which mounted this chip container (for example, refer the following patent document 1).

  In addition, a large number of processing machines are installed in the factory production line. When the above-mentioned chip containers and carts are used to collect chips generated from each processing machine, the chip containers for each processing machine are used. In addition, it is necessary to install carts and move these carts individually to a collection place.

  Here, with respect to the cart, for example, in Patent Document 2 below, a rugged portion for fitting and coupling is provided on the peripheral side of the cart body, and a cart that can be used in a state in which a plurality of carts are coupled, or a reinforcing portion of each cart. There is disclosed a cart assembly in which a plurality of cart bodies are coupled by a coupling member having a plurality of insertion portions that are inserted into and fixed to the opening end portions provided in. Moreover, the cart or the cart coupled body disclosed in this patent document can be fixed by inserting a handle into the opening end of the reinforcing portion, like the coupling member.

JP-A-11-207562 JP 2009-61947 A

  As described in Patent Document 2, if a plurality of carriages are connected and moved, chips collected in a plurality of containers can be transported and collected by a single collection operation. However, in the cart described in Patent Document 2, the handle and the connecting member between the carts are separately and detachably mounted. For this reason, when the container installed on the processing machine and the carriage on which the container is placed are connected while sequentially turning each processing machine, it takes time to connect the connecting member every time the connection work is performed. Moreover, when connecting with another trolley | bogie, it is necessary to move each trolley | bogie to a connection position, and a handle is used until just before a connection. Here, since the cart described in Patent Document 2 has a structure in which a handle is attached to an insertion port (opening end portion of the reinforcing portion) common to the connecting member, it takes time and labor to remove the handle immediately before the connecting operation. . Further, the removed handle must be stored in another place, which also reduces workability during connection.

  The problems described above are not limited to the collection of chips, but when collecting other processing effluents, it is also necessary to collect the products produced at multiple locations in one place. The same applies to transportation work, and improvement is also required.

  Considering the chip collection efficiency, the chip collection method disclosed in Patent Document 1 must collect the cart for each processing machine. As described above, if the carts are individually collected for each processing machine, the collection work is very time-consuming and very inefficient.

  In addition, since the amount of chips generated from each processing machine is different for each processing machine, as described in Patent Document 2, even when a plurality of carts are connected and moved, Depending on the collection time, a plurality of containers may not be collected by a single collection operation. In addition, as in the past, when the container was filled with chips and visually confirmed each time, and the containers were collected with a cart, the chips were removed even if a connectable cart was used. It is difficult to recover efficiently.

  In view of the above circumstances, in the present specification, a technique to be solved by the present invention is to provide a cart that can connect a plurality of carts and that can be coupled in a short time without the labor required for the coupling work. As an objective.

  Moreover, in view of the above circumstances, the present specification provides a chip collection system capable of efficiently collecting chips stored in a container on each carriage using a plurality of carts that can be connected. This is a technical problem to be solved by the present invention.

The present invention has been made to solve the above problems. That is, the cart according to the present invention has a cart body provided with a plurality of wheels and a gripping unit integrally, and can move the cart body by gripping the gripping unit when attached to the cart body. The operation member includes a connection part that enables connection with another carriage in a state in which the operation member is attached to the carriage body, and a support shaft part that extends downward from the grip part. possess together, the first side portion of the carriage body, and a fitting part support shaft portion is fitted, and the coupled portion can be connected to the connection portion is provided, the support shaft in the fitting portion In the fitted state, the operation member is rotated around the support shaft portion, and the connecting portion is connected to the connected portion of the other carriage, so that the second side surface portion orthogonal to the first side surface portion and the other carriage are connected. It is characterized by the point which was comprised so that another cart could be connected in the state which made the 2nd side part oppose .

  As described above, in the present invention, the connecting portion for connecting the trolleys is integrated with the member (operating member) for operating the trolley alone, and therefore, when connecting, another part is attached or removed. Saves time and effort. Further, since the connecting portion is provided integrally with the operation member provided with the gripping portion, the connecting operation can be performed smoothly. Thereby, the connection operation | work of trolley | bogies can be performed efficiently in a short time. Further, since the number of parts used is small, the structure of the cart can be simplified. Therefore, the connecting structure can be provided on the carriage without so much cost.

  In this case, the operation member has a support shaft portion extending downward from the grip portion, and the first side surface portion of the carriage body has a fitting portion into which the support shaft portion is fitted, and a cover that can be connected to the connection portion. A connecting portion is provided, and the connecting portion is connected to the connected portion of the other cart in a state in which the support shaft portion is fitted to the fitting portion, so that the second side surface portion orthogonal to the first side surface portion and the other Another cart may be connectable with the second side surface portion of the cart facing each other.

  By configuring in this way, the carts are different from the side surface (first side surface) provided with the operation member, the connecting part connected to each other, and the connected part (first side part). They are connected in a state where they face each other. Accordingly, the carts can be connected to each other in a state in which the operation member, the coupling portion, and the coupled portion are arranged on the side of the coupled cart and the opposed second side surfaces are brought close to or in close contact with each other. Therefore, the dimension of the connected direction of the trolley | bogie in a connected state can be shortened, and trolley | bogies can be connected compactly. Also, move the carriage to a position where it can be connected to another carriage by operating the operation member, and connect the carriages by simply connecting the connecting part provided on the operation member at that position to the connected part of the other carriage Since this is possible, this connecting operation can be performed efficiently and without trouble. Moreover, if it connects at such a position, a cart can be more firmly connected by providing an operation member, a connection part, and a to-be-connected part in the both 1st side part which mutually opposes ( (See FIG. 2).

  The plurality of wheels are three wheels, and each wheel is composed of one free wheel provided on one second side surface side and two free wheels provided on the other second side surface side. It may be.

  According to this structure, when connecting a trolley | bogie, it can avoid that the wheels of an adjacent trolley | bogie interfere and can aim at a smooth connection. Moreover, since it does not need to interfere, trolley | bogies can approach and connect so much and the trolley | bogie in the connected state can be made compact. Further, if the length is shortened in the connecting direction, the difference between the inner and outer wheels is reduced accordingly, so that the small turn is effective even in the connected state (running performance can be ensured). In addition, since all the three wheels are free wheels, it is possible to ensure high running performance when used as a single vehicle as well as in a connected state.

  The trolley | bogie which concerns on the above description can also be provided as a connection trolley | bogie formed by mutually connecting mutually adjacent trolleys by a connection part. In this case, it is also possible to use the wheel of the carriage located at the tail of the plurality of carriages constituting the coupled carriage as a fixed wheel.

  By configuring in this way, when traveling in a connected state, it is possible to suppress run-out on the rear side of the connected cart, in particular, slip in a direction orthogonal to the traveling direction, and improve the travel performance of the connected cart.

In addition, the chip collection system according to the present invention, which has been made in order to solve the above problems, has a plurality of processing machines using a plurality of carts that have containers of the same volume and can be connected to each other. It is a system for collecting chips generated on the line, and the carriage has a carriage main body provided with a plurality of wheels and a gripping part integrally, and grips the gripping part when attached to the carriage main body. An operation member capable of moving the carriage main body, and the operation member includes a connection portion that enables connection with another carriage in a state in which the operation member is attached to the carriage main body, and a downward direction from the gripping portion. An extending support shaft is integrally formed, and the first side surface portion of the carriage body is provided with a fitting portion to which the support shaft portion is fitted and a connected portion that can be connected to the connecting portion. With the spindle part fitted to the part, rotate the operating member around the spindle part to Of that connected to the connected portion of the carriage, is connectable to configure another truck while being opposed to the second side surface portion of the second side portion and the other of the carriage perpendicular to the first side surface portion, the processing The process of acquiring the time required for containers installed in each machine to be filled with chips from an empty state, and connecting multiple carts with containers filled with chips based on the time required. And a step of setting a collection route for the carriage so that the vehicle can be collected.

  As described above, in the present invention, a constant volume container is used for any processing machine having different amount of chips, and the container is filled with chips from an empty state. Since the required time was acquired and the collection route of the cart was determined based on the acquired required time, the container was surely filled with chips without the operator having to visually check whether the chips were full. It is possible to collect and collect multiple carts. Therefore, this collection operation can be performed efficiently without waste. Moreover, since it is only necessary to automatically perform the collection operation according to a predetermined collection route, the work efficiency can be improved in this respect as well.

  Also, in this case, the number of trucks collected in one collection operation can be made almost constant, thereby eliminating the excess and deficiency of the number of trucks collected for each collection operation as much as possible and further improving the collection efficiency. Can be increased. In this case, since the total weight of the plurality of trucks to be pulled can be assumed to some extent, it is sufficient to use a self-propelled vehicle having a pulling ability corresponding to the weight. Therefore, also in this respect, capital investment can be kept low.

  As described above, according to the cart according to the present invention, it is possible to connect a plurality of carts, and it is possible to connect in a short time without the trouble of connecting work.

  Moreover, according to the collection | recovery system which concerns on this invention, it becomes possible to collect | recover efficiently the chips stored in the container on each trolley | bogie using the several trolley | bogies which can be connected.

It is a perspective view of the trolley | bogie which concerns on one Embodiment of this invention. It is a perspective view which shows the state which connected two trolley | bogies shown in FIG. It is a principal part side view for demonstrating the operation | movement at the time of connecting a trolley | bogie as shown in FIG. It is a principal part top view for demonstrating the operation | movement at the time of connecting a trolley | bogie as shown in FIG. It is a top view which shows notionally the usage example of the connection trolley | bogie formed by mutually connecting the several trolley | bogie shown in FIG. It is a principal part enlarged plan view of the connection trolley | bogie shown in FIG. It is a principal part enlarged plan view which shows the other form of the connection trolley | bogie shown in FIG. It is a side view which shows the whole structure of the trolley | bogie inversion apparatus used when discarding the chips collect | recovered with the connection trolley | bogie shown in FIG. It is a perspective view of the trolley | bogie which concerns on other embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure for demonstrating the outline | summary of the chip collection | recovery system which concerns on this invention, Comprising: (a)-(h) is a top view which shows the route | root collected according to time. It is a graph which shows the discharge | emission amount of the chip per unit time for every processing machine. It is a graph which shows the time required for each processing machine to be filled with chips from an empty state.

  Hereinafter, an embodiment of a cart according to the present invention will be described with reference to the drawings.

  FIG. 1 shows the overall configuration of a carriage according to an embodiment of the present invention. A cart 1 shown in this figure has a substantially rectangular cart body 3 provided with a plurality of wheels 2, a container 4 held above the cart body 3, and a gripping part 5, and is attached to the cart body 3. In this state, there is provided an operation member 6 that can grip the grip portion 5 and move the cart body 3.

  The operation member 6 integrally includes a connecting portion 7 that enables connection with another cart 11 in a state where the operation member 6 is attached to the cart body 3 as shown in FIG. Specifically, as shown in FIG. 1, the operation member 6 is branched from a T-shaped handle-shaped gripping portion 5, a support shaft portion 8 extending downward from the gripping portion 5, and a midway in the longitudinal direction of the support shaft portion 8. And a branch portion 9 provided with a connecting portion 7 at the tip thereof. The branch portion 9 branches in a direction orthogonal to the support shaft portion 8 and has a shape in which a tip portion that becomes the connecting portion 7 is bent so as to be parallel to the support shaft portion 8.

  The operation member 6 having the above-described configuration is attached to a predetermined side surface portion (first side surface portion) of the cart body 3 having a substantially rectangular shape. In FIG. 1, the operation member 6 is attached to the side surface portion 10 on the short side of the cart body 3 that is substantially rectangular in a plan view. Specifically, on the outer surface of the side surface portion 10, as shown in FIG. 1, a fitting portion 12 that fits with the tip of the support shaft portion 8 of the operation member 6 and a connection provided integrally with the operation member 6. A connected portion 13 that can be connected to the portion 7 is provided. In this illustrated example, the fitting portion 12 and the connected portion 13 both have a substantially cylindrical shape, and are fixed to the outer surface of the side surface portion 10 with a predetermined distance. Here, the “predetermined distance” means that the connecting portion 7 is connected to the connected portion 13 in a state in which the support shaft portion 8 of the operation member 6 is fitted to the fitting portion 12 as shown in FIG. 2) and, as shown in FIG. 2, in a state where the support shaft portion 8 is rotated 180 ° around the support shaft portion 8, the support shaft portion 8 is fitted to the fitting portion 12 of one carriage 1 and is adjacent to each other. The size is set such that it can be connected to the connected portion 13 provided on the side surface portion 10 on the short side of the other carriage 11.

  Further, in this embodiment, as shown in FIG. 1, the tip end of the support shaft portion 8 is positioned below the tip end of the connecting portion 7 in a state where the operation member 6 is attached to the cart body 3. Therefore, as will be described later with reference to FIG. 3, when the carriage 1 is lifted up integrally with the operation member 6 in order to connect the carriage 1 to another adjacent carriage 11, the support shaft portion 8 is It does not come out of the fitting part 12.

In this embodiment, as shown in FIG. 1, the grip portion 5 has a T-shaped handle shape, and the rotation center of the grip portion 5 coincides with the central axis of the support shaft portion 8. In other words, the support shaft portion 8 has a shape extending vertically downward from the center in the width direction of the grip portion 5. Therefore, as will be described later with reference to FIG. 4, the operation member 6 (gripping portion 5) in a state of being fitted to the fitting portion 12 is gripped, and the gripping portion 5 is oriented in a predetermined direction around the support shaft portion 8. The connecting portion 7 provided on the operation member 6 of the carriage 1 can be moved onto the connected portion 13 of the other carriage 11 to be connected only by rotating the carriage 1.

  The operation member 6, the fitting part 12, and the connected part 13 according to the above description are not only one side part 10 on the short side of the carriage body 3, but also the other side part 14 facing the side part 10. Is also provided. Therefore, the connection state shown in FIG. 2 can be made stronger.

  Moreover, as shown in FIG. 2, one side surface portion 15 on the long side as the second side surface portion orthogonal to the side surface portions 10 and 14 on the side where the operation member 6 is attached is provided on the peripheral edge of the cart body 3. When the adjacent other cart 11 is connected to the cart 1 via the connecting portion 7, the guide portions 16 for guiding the other cart 11 with positioning with respect to the cart 1 are provided on both sides in the width direction. .

  Further, as shown in FIG. 1, a fork insertion portion 17 for inserting, for example, a fork 34 of a reversing device 30 to be described later is provided below the carriage body 3 in the connecting direction of the carriage 1 (in FIG. To the lower right).

  In addition, the plurality of wheels 2 disposed below the cart body 3 are three wheels in this embodiment, one on one side of the side portion 15 on the long side of the cart 1 shown in FIG. Two are provided on the other side. More precisely, one wheel 2 is provided in the center in the width direction on the front side when the guide unit 16 is connected to another carriage, and two wheels are provided on both sides in the width direction on the rear side. 2 and 2 are provided. These three wheels 2 are all free wheels that can rotate around the vertical axis.

  Hereinafter, an operation when connecting another cart 11 to the cart 1 having the above-described configuration will be described with reference to FIGS. 1 to 4. The other carts 11 shown in FIGS. 2 to 4 have the same structure as the cart 1 shown in FIG. 1, and detailed description thereof is omitted. Further, in FIG. 2, the operation member 6 to be provided on the other carriage 11 is omitted for easy understanding by visual sense.

  First, as shown in FIG. 1, when the cart 1 is used alone, the operation member 6 is attached to the cart body 3 via the fitting portion 12, and the connecting portion 7 provided integrally with the operation member 6 is: It is fixed in a state of being fitted to a connected portion 13 provided on the side surface portion 10 of the same cart body 3.

  Next, as shown in FIG. 2, when another cart 11 is connected to the cart 1, first, the other cart 11 is moved to a position adjacent to the cart 1 by an operation member (not shown). At this time, the other carriage 11 is positioned with respect to the carriage 1 by the guide portion 16 provided on the other carriage 11. Then, as shown in FIG. 3, the gripping part 5 is gripped and the operating member 6 is lifted upward, and the connecting part 7 fitted to the connected part 13 of the cart body 3 is pulled out. At this time, as shown in FIG. 3, the tip end of the support shaft portion 8 fitted to the fitting portion 12 is positioned below the tip end of the connecting portion 7 fitted to the connected portion 13. Therefore, in a state where the connecting portion 7 is pulled upward from the connected portion 13, the support shaft portion 8 is still in a state of being fitted to the fitting portion 12.

  Thereafter, as shown in FIG. 4, the operation member 6 is rotated 180 ° counterclockwise in a plan view around the support shaft portion 8, thereby connecting the operation member 6 to the operation member 6 via the branch portion 9. As shown in FIGS. 3 and 4, the portion 7 is moved from above the connected portion 13 of the carriage 1 to above the connected portion 13 of another adjacent carriage 11. And the holding part 5 is moved below, the connection part 7 is lowered | hung integrally with the holding part 5, and the connection part 7 is fitted to the to-be-connected part 13 of the other trolley | bogie 11. FIG. Although not shown in the drawings, on the opposite side surface portion 14 side, as shown in FIGS. 3 and 4, the above-mentioned predetermined operation is given to the operation member 6 to connect the connected portion 13 of the other carriage 11. The connecting portion 7 is fitted into the. Thereby, as shown in FIG. 2, the connecting portion 7 of the carriage 1 is connected to the connected portion 13 of the other carriage 11 by fitting, and the adjacent carts 1 and 11 are connected. In this case, since the carts 1 and 11 adjacent to each other are connected on the side portion 10 on the short side of the cart body 3, the side portions 15 and 15 on the long side are connected to each other. Are connected to each other in close proximity or in close contact with each other. Thereby, the advancing / retreating direction in the case of the carts 1 and 11 alone, that is, the direction of mainly pushing and pulling by the operation member 6 and the direction of advancing and retreating these coupled carts (the coupled cart 20) in a state where the carts 1 and 11 are coupled. Are orthogonal to each other.

  As described above, in the case of the carts 1 and 11 according to this embodiment, only the simple and minimum operation of gripping the grip portion 5, lifting the operation member 6 upward, rotating it by a predetermined angle, and lowering it downward. Thus, the adjacent carts 1 and 11 can be connected to each other. In addition, since the operation member 6 integrally includes the connecting portion 7 between the grip portion 5 and the other carriage 11, it is not necessary to separately attach or remove components when connecting. Therefore, it is possible to reduce the labor and time required for the connecting work and to efficiently connect or release the carts 1 and 11. In addition, since the carts 1 and 11 having the same structure can be connected to each other without separately providing connecting parts, the versatility at the time of use (substitution of the cart) and the versatility of maintenance (part replacement) Ease of use) and usability can be improved.

  Further, in this illustrated example, the connecting portion of the same carriage 1 is connected to the connected portion 13 "with other carriage 11" in a state where the support shaft portion 8 of the operation member 6 is fitted to the fitting portion 12 of the carriage body 3. 7 can be fitted and fixed, so that the carriage 1 alone is moved in a state where the connecting portion 7 provided integrally with the operation member 6 is fitted and fixed to the connected portion 13 provided on the carriage body 3 of the carriage 1. Can be operated. Therefore, the connecting portion 7 does not need to rotate around the support shaft portion 8 when the carriage 1 alone is moved.

  The cart 1 according to the above description can be used for a wide variety of applications, and is particularly suitable for an application to be used both in a single cart and in a connected state. Hereinafter, the usage example of the trolley | bogie which concerns on this invention is demonstrated based on drawing.

FIG. 5 is a principal plan view for explaining an outline when the cart 1 according to the present invention is used for collecting chips generated in the processing line 21 of the factory. As shown in the figure, this processing line 21 is provided with a plurality of processing machines MC _A , MC _B , MC _C ... MC _N , which are generated in each processing machine and accumulated in the coolant tank. A chip conveyor 22 is provided for sucking up the cut chips and discharging them to the side of the apparatus. Here, the carts 1, 1... According to the present invention are arranged directly below the chip discharge port of the chip conveyor 22 of each processing machine, and the cart 23 discharges the chips 23 continuously or intermittently discharged from the processing machine. A container 4 placed on one bogie main body 3 is stored.

Then, for example, among the plurality of processing machines MC _{A to} MC _N , the cart 1 in which the container 4 is filled with chips is sequentially collected by a predetermined self-propelled vehicle 24 (for example, an electric one is used). And dispose of it at a designated location outside the factory. At this time, the self-propelled vehicle 24, a predetermined (in terms of the example 5, the position of the processing machine MC _A) the position of the carriage 1 to be initially collected together with moving up, the carriage 1 in the rear of the motor vehicle 24 Connect using the following method. The connection means in this case is not particularly limited. For example, as shown in FIG. 1, a connection portion 7 or a connected portion 13 as connection means between the carts 1 may be provided behind the self-propelled vehicle 24, or The intermediate joint 26 illustrated in FIG. 7 may be attached to the rear of the self-propelled vehicle 24 so that the cart 1 is connected and pulled so as to be rotatable about the vertical axis.

Then, after connecting the first carriage 1, so the position of the carriage 1 to be recovered next to (e.g. Fig. 5 in speaking position of the processing machine MC _C) to move the self-propelled vehicle 24, connected to the self-propelled vehicle 24 The new cart 1 to be recovered next is connected to the rear of the cart 1. The connecting means in this case is the same as the means shown in FIGS. In this way, all the carts 1 to be collected are connected to the back of the self-propelled vehicle 24, and finally, the plurality of coupled carts 1 (linked cart 20) are transferred to a predetermined disposal site. Then, the chips loaded on the collected cart 1 are discarded. In the implementation, a new empty cart 1 needs to be arranged in each of the processing machines MC _{A to} MC _N along with the collection, but a plurality of empty carts 1 are separated from the collection operation by the self-propelled vehicle 24. A self-propelled vehicle (not shown) connected to the cart 1 is run on the same route, and the empty carts 1 are sequentially disconnected and rearranged one by one in the reverse order of the above-described connecting operation. Good. Alternatively, the recovery operation is started with the self-propelled vehicle 24 that has connected the same number of empty carts 1 as the number of vehicles to be collected in advance, and the empty cart 1 is first disconnected at the position of the cart 1 to be connected. After that, the cart 1 filled with the chips 23 may be connected, and the empty cart 1 and the cart 1 filled with the chips 23 may be replaced to perform the collection operation. .

In this way, if the cart 1 according to the present invention is used for collecting chips, the cart 1 arranged in each of the processing machines MC _{A to} MC _N is already connected to one or more self-propelled vehicles 24. It can be connected to the cart 1 by simple means. Moreover, the operation | work from the movement of the trolley | bogie 1 to a connection position to the connection to the trolley | bogie 1 already connected can be performed efficiently. Therefore, a series of operations from chip collection to disposal can be performed in a short time with little effort.

  Here, at the time of the said collection | recovery operation | work, since the several trolley | bogie 1 (connection trolley | bogie 20) connected with the self-propelled vehicle 24 moves between the processing lines 21 and other facilities in a factory, several connected. The dolly 1 is required to have high traveling performance. In this regard, for example, as shown in FIG. 6, the wheels of the carriage 1 connected to the rear end among the plurality of carriages 1 connected to each other may be fixed wheels. In FIG. 6, four fixed wheels 25 are provided, whereby a plurality of carriages 1, 1... Connected to the front side thereof move (slide) in a direction different from the traveling direction of the self-propelled vehicle 24. , And a plurality of mutually connected carts 1, 1... Can be caused to travel in a shape generally along the travel locus of the self-propelled vehicle 24. In the illustrated example, the two fixed wheels 25 arranged forward in the connecting direction are all arranged at positions that do not interfere with the wheels 2 of the carriage 1 connected adjacent to each other. Since the other configuration is the same as that of the cart 1 shown in FIG. 1 including the connecting means, the description thereof is omitted.

  Alternatively, as shown in FIG. 7, two or more sets of connecting carts 20 in which a predetermined number of carts 1 are connected to each other are configured, and the other of the connecting carts 20 and 20 is connected to the other connecting cart 20. It is also possible to dispose an intermediate joint 26 for rotatably connecting the connecting cart 20. For example, as shown in FIG. 7, the intermediate joint 26 includes a front connection frame 27 that can be connected to the front connection cart 20 (cart 1) and a rear connection that can be connected to the rear connection cart 20. It mainly includes a frame 28 and a connecting pin 29 for connecting one of the front and rear connecting frames 27 and 28 to the other so as to be rotatable about a vertical axis. Here, a connected portion 13 similar to that provided in the carriage 1 is provided at a side portion of the connecting frame 27 on the front side, and the connected portion 13 is provided in front of the connecting frame 27. The connecting portion 7 of the operation member 6 fitted to the fitting portion 12 of the cart 1 that is positioned is fitted. In addition, a fitting portion 12 similar to that of the carriage 1 is provided in a side portion of the rear connecting frame 28, and an operation member 6 is fitted to the fitting portion 12. The connecting portion 7 can be fitted and fixed to the connected portion 13 of the carriage 1 located behind the connecting frame 28. Therefore, by disposing the intermediate joint 26 having the above-described configuration between the connecting carts 20 and 20, the difference between the inner and outer wheels when the connecting carts 20 as a whole bend a corner is reduced, and the operability and running performance are further improved. Can be increased. In this case as well, it is preferable that the carriage 1 located at the end of each connecting carriage 20 includes the carriage body 3 provided with only the fixed wheels 25.

  Further, when a plurality of carriages 1 are connected and moved to a predetermined place as described above, and the chips 23 in the container 4 are discarded, for example, a reversing device 30 having the form shown in FIG. 8 can be used. It is. The reversing device 30 includes sprockets 32 provided at the upper ends of a pair of left and right support columns 31, respectively. A chain block 33 is engaged with the sprocket 32, and one end of the chain block 33 is disposed below the carriage 1. A fork 34 that can be inserted is attached to the fork insertion portion 17 (see FIG. 1). The fork 34 provided at one end of the chain block 33 is moved up or down by winding the other end of the chain block 33 in a predetermined direction with a motor or the like (not shown). Further, as the chain block 33 is wound, the fork 34 continues to rise and continues to wind even after reaching the uppermost position, so that the fork 34 rotates around the sprocket 32. The carriage 1 supported by 34 is reversed.

  Therefore, as shown in FIG. 8, the carriage 1 in a state where the container 4 is filled with chips with the two forks 34 held in a predetermined position below is moved toward the reversing device 30, and the carriage A fork 34 is inserted into one fork insertion portion 17. And the fork 34 fixed to this chain block 33 is raised with the trolley | bogie 1 by pulling up the chain block 33 by winding operation of the chain block 33 (state shown with the dashed-dotted line on the left side in FIG. 8). Then, the fork 34 is further raised, and the fork 34 is rotated around the sprocket 32, whereby the carriage 1 supported by the one set of forks 34 starts to reverse (the one-dot chain line on the right side in FIG. 8). ), The chips in the container 4 that opens upward are dropped into a box 35 (also called a bucket or bucket) installed below the reversal position. In this way, the chips in the container 4 can be easily stored in the box 35 for transport at the time of disposal without using an expensive forklift or the like.

  Further, when the chips in the container 4 are disposed using the above reversing device 30, for example, only the container 4 can be lifted by the fork 34. FIG. 9 shows an example thereof, and the cart 1 according to the figure has a configuration in which the cart body 3 and the container 4 are formed separately and the container 4 is placed on the upper surface of the cart body 3. is there. Here, a part 36 of the fork insertion portion 17 provided below the cart main body 3 is provided on the lower surface of the container 4, and the remaining portion 37 of the fork insertion portion 17 remains in the cart main body 3 in an open shape. Further, of the side surfaces provided on the peripheral edge of the carriage main body 3, notched portions 38 and 38 are provided on the side surface portion on the fork insertion side, and inserted into a part 36 of the fork insertion portion 17 provided integrally with the container 4. When the fork 34 is raised, interference between the fork 34 and the side surface of the carriage body 3 is avoided.

  By setting it as such a structure, only the container 4 can be lifted from the trolley | bogie 1 using the inversion apparatus 30. FIG. As a result, it is not necessary to lift an object (cart body 3) that is essentially irrelevant to the chip discharging operation, and the load on the fork 34 can be reduced. Therefore, a large motor or fork 34 is not required, and the structure of the reversing device 30 can be simplified.

  The cart according to the present invention has been described above. However, the cart is not limited to the above-described exemplary form, and can of course take any form within the scope of the present invention.

  Moreover, although the case where the trolley | bogie which concerns on this invention is used for the collection | recovery use of a chip was illustrated in the above description, it cannot be overemphasized that the said trolley | bogie can be used for uses other than illustrated.

  Hereinafter, an embodiment of a chip collection system according to the present invention will be described with reference to the drawings.

FIG. 10 shows an example of a chip collection system according to the present invention. This collection system uses a plurality of carts that have containers of the same volume and can be connected to each other like a cart 1 shown in FIG. 1, for example, to generate chips generated on a processing line having a plurality of processing machines. A system for collecting, in which a container installed for each processing machine acquires time required for a container to be filled with chips from an empty state, and based on the acquired required time, A step (B) of setting a collection route for the carriage so that the plurality of carriages filled with chips can be connected and collected. Here, a description will be given of chips generated from the six machine MC _A to MC _F which is installed at a predetermined processing line with an example in which recovered using the dolly.

First, in step (A), for each machine MC _A to MC _F to be recalled, to measure the emissions L of chips per unit time. Here, the discharge amount L is measured not by the discharge weight but by the apparent volume amount in anticipation of the subsequent step (B). This is because the shape of the chips varies depending on the processing form of each processing machine, and even when a container with the same volume is used, depending on the shape of the chips, when the container is filled until it is full This is because the weight of the chips may vary greatly (cannot be managed by weight). Therefore, for example, the discharge amount L as an apparent volume amount for each processing machine is measured using a predetermined volume.

FIG. 11 shows an example of the measurement result. Referring to this figure, the discharge amount L per unit time is the highest in the second processing machine MC _B , and then increases in the third and sixth processing machines MC _C and MC _F. The discharge amount L per unit time from the first, fourth, and fifth processing machines MC _A , MC _D, and MC _E is about one third of the discharge amount L of the second processing machine MC _{B, and} the third. It can be seen that the discharge amount L of the sixth processing machine MC _C / MC _F is about one half.

Therefore, based on the above result, when collecting the chips in the same volume container, the time required for the container to be filled with the chips from the empty state is calculated. FIG. 12 shows the calculation result of the required time. As can be seen from this figure, considering that the volume of the container used by each processing machine is constant, the time required to fill the above tends to contradict the measurement result of the discharge amount L shown in FIG. Become. That is, the time t required for the container to be filled with the chips is the fastest in the second processing machine MC _B , and then is fast in the third and sixth processing machines MC _C and MC _F. The required time t for the first, fourth and fifth processing machines MC _A , MC _D, and MC _E is approximately three times the required time t for the second processing machine MC _B , and the third and sixth processes. It can be seen that it takes about twice as long as the required time t in the machines MC _C and MC _F.

  In the above, first, the discharge amount L of chips per unit time is obtained as an apparent volume, and based on this, the time t required for the container to be filled with chips is calculated. If so, the required time t may be directly measured for each processing machine in consideration of the accuracy of the result.

  After obtaining the required time t for each processing machine in this way, next, as the step (B), based on the acquired required time t, a plurality of carts whose containers are filled with chips are connected. Set a collection route for the cart so that it can be collected. At this time, the collection route may be determined so that the number of trucks to be collected is substantially constant in one collection operation.

Hereinafter, an example of the collection route of the carriage will be described in detail with reference to FIG. For example, as shown in FIG. 5, around the processing machine (processing line) that is the target of the self-propelled vehicle, a cart whose container is filled with chips is connected and collected every predetermined time. Here, as shown in FIG. 10 (a), the containers installed in the second, fourth, and sixth processing machines MC _B , MC _D , MC _F are filled with chips during the first collection operation. Adjust so that In this case, first, the containers installed in the processing machines MC _B , MC _D, and MC _F are collected together with the cart.

Then, after a lapse of a predetermined time, first and second, and third machine MC _A · MC _B · MC _C placed the container is adjusted to be filled with chips. Therefore, as shown in FIG. 10 (b), the containers and carts installed in the processing machines MC _A , MC _B, and MC _C are collected while being connected in order. In this case, the work interval between the second collection operation and the first collection operation is the time t required for the container in the processing machine MC _B to be filled with chips from the empty state (see FIG. 12). be equivalent to.

Further, after a predetermined time has elapsed, the containers installed in the second, fifth, and sixth processing machines MC _B , MC _E, and MC _F are adjusted to be filled with chips. Therefore, as shown in FIG. 10 (c), it is recovered while connecting the installed container and dolly of the above machine MC _B · MC _E · MC _F sequentially. Again, working distance between the third recovery operations and the second recovery operation is equal from the container is empty at time t required to become filled with chips at the machine MC _B.

And in the collection | recovery operation | work after the 4th time, based on the collection | recovery history until now and the required time t until full for every processing machine shown in FIG. 12, it can determine automatically. That is, when the work interval of each collection operation is the required time t of the second processing machine MC _B , the collection time of the container (cart) installed in the first processing machine MC _A is the last from the result of FIG. it can be seen this machine is a time recovery operations after three dolly of MC _a from recovered. That is, since last time to recover the dolly installed in the first processing machine MC _A is at the second recovery operations, that the next harvest time is 5th times (see Figure 10 (e)) I understand. Moreover, it turns out that the next collection time is the 8th (refer FIG.10 (f)).

Similarly, because the third machine was recovered installed the dolly last MC _C is at the second recovery operations, considering the results of FIG. 12, the next harvest time fourth, next It can be seen that the collection time is the sixth time and the next collection time is the eighth time (see FIGS. 10 (d), (f) and (h), respectively). Similarly, the fourth machine MC next harvest time of the carriage installed in _D is fourth, it can be seen the next harvest time is 7 th (see FIG. 10 (d) (g), respectively) . Further, (see Figure 10 (f)) following recovery time of the carriage installed in the fifth machine MC _E is 6 th, 6 th machine MC next harvest time of the installed dolly _F is It can be seen that the fifth and subsequent collection times are the seventh (see FIGS. 10E and 10G, respectively).

  By setting the collection route in this way and carrying out the collection, the carriage can be collected without difficulty and with as high a collection efficiency as possible. Moreover, since it is sufficient to collect only according to a predetermined collection route, there is no need to determine whether or not the container is full of chips. Therefore, collection mistakes can be reduced and the collection operation can be performed reliably.

  Moreover, in the said embodiment, the number of trolley | bogies collect | recovered for every collection | recovery operation | work was made substantially constant by adjusting the initial collection | recovery time for each processing machine (three in this embodiment). By setting the number of carts to be collected in this way, it is possible to eliminate as much as possible the number of carts to be collected for each collection operation. In addition, since it is sufficient to use a self-propelled vehicle with a towing capacity that corresponds to the number set above for this collection work, a self-propelled vehicle with an output suitable for the work is sufficient, and capital investment can be kept low. it can.

  As mentioned above, although one Embodiment of the chip | tip collection | recovery system which concerns on this invention was described, this collection | recovery system is not limited to the form of the said illustration, It can take arbitrary forms within the scope of the present invention. In addition, the recovery system according to the present invention can be applied to a wide range of uses as long as chips are recovered in a processing line including a plurality of processing machines. The type of processing line (in the case of an automobile factory, engine parts such as a cylinder head, a cylinder block, and a crankshaft) is not particularly limited. Moreover, although this collection | recovery system can also be applied ranging over several process lines, when the subsequent disposal of the collected chip is considered, the chip of the same material can be collected as much as possible by one collection operation. The recovery route should be determined as follows.

  In addition, both the cart and the chip collection system according to the present invention can take other specific forms for matters other than the above as long as the technical significance of the present invention is not lost.

1 · 11 Car 2 Wheel 3 Car body 4 Container 5 Holding part 6 Operating member 7 Connecting part 8 Supporting shaft part 9 Branching part 10/14 First side part 12 Fitting part 13 Connected part 15/15 Second side part 16 Guide part 17 Fork insertion part 20 Connection carriage 21 Processing line 22 Chip conveyor 23 Chip 24 Self-propelled vehicle 25 Fixed wheel 26 Intermediate joints 27 and 28 Connection frame 29 Connection pin 30 Reversing device 31 Strut 32 Sprocket 33 Chain block 34 Fork 35 Box 38/38 Notch MC _A / MC _B / MC _C / MC _D / MC _E / MC _F Processing machine L Chip discharge per unit time t The container is filled with chips from an empty state Time required for

Claims (3)

A cart main body provided with a plurality of wheels, and an operation member that integrally has a gripping portion and that can move the cart main body by gripping the gripping portion when attached to the cart main body. A trolley
The operating member is closed and a connecting portion to the operating member enables the connection with other carriage in a state attached to the carriage body, and a support shaft portion extending downwardly from the grip portion integrally,
The first side surface portion of the carriage main body is provided with a fitting portion into which the support shaft portion is fitted, and a connected portion that can be connected to the connecting portion,
By rotating the operation member around the support shaft portion in a state where the support shaft portion is fitted to the fitting portion, the connecting portion is connected to the connected portion of the other carriage, thereby A cart configured to be able to connect the other cart in a state where a second side surface portion orthogonal to the one side surface portion and a second side surface portion of the other cart are opposed to each other . The plurality of wheels are three wheels, and each wheel includes one free wheel provided on the side of the second side surface portion and two free wheels provided on the side of the second side surface portion. Item 2. The cart according to item 1 . A system for collecting chips generated in a processing line having a plurality of processing machines using a plurality of carts having containers of the same volume and interconnectable with each other,
The carriage has a carriage main body provided with a plurality of wheels, and a gripping unit, and an operating member that can move the carriage main body by gripping the gripping part when attached to the carriage main body. And
The operation member integrally includes a connection portion that enables connection with another cart in a state in which the operation member is attached to the cart body, and a support shaft portion that extends downward from the grip portion,
The first side surface portion of the carriage main body is provided with a fitting portion into which the support shaft portion is fitted, and a connected portion that can be connected to the connecting portion,
By rotating the operation member around the support shaft portion in a state where the support shaft portion is fitted to the fitting portion, the connecting portion is connected to the connected portion of the other carriage, thereby The second carriage is configured to be connectable with the second carriage in a state where the second carriage and the second carriage are opposed to each other.
Obtaining the time required for the container installed for each processing machine to be filled with the chips from an empty state;
And a step of setting a collection route for the cart so that the plurality of carts in which the container is full of the chips can be connected and collected based on the obtained required time. Powder recovery system.

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