JP4444600B2 - Air flotation cart of moving tank - Google Patents

Description

The present invention, while transporting, transferring and restoring the mobile tank using an air floating type carriage, about the sequential air floating Shikidai vehicle to perform a predetermined work in a plurality of stations.

In large-scale production of small varieties, which has been the mainstream in the past, it is common to connect the tanks to each other with pipes, and there are problems such as laying many complicated pipes, cleaning pipes, and eliminating contamination. However, when large-scale production is continuously carried out, no major improvement has been achieved because it can be solved by regular maintenance, and efficiency is improved by continuous production.
However, along with changes in the industrial structure, production of higher value-added products is necessary in recent years, and multi-product small-quantity production and multi-product variable production have become mainstream. In other words, it is necessary to produce products with more individuality, higher functionality, and higher grades by using many types and combinations of raw materials and auxiliary materials, and it is necessary to further promote labor saving, efficiency, and automation. is there.

In order to meet such a demand, “multi-purpose batch production system by moving tank system” as disclosed in Patent Document 1 by the applicants, “multi-product small-volume production by moving tank” as disclosed in Patent Document 2 "Transfer / return device for moving tank" as disclosed in Patent Document 3 is provided.
PCT Application JP91-531 Patent No. 3059576 Patent No. 3012107

Briefly describing each technology, in Patent Document 1, a moving tank carriage on which a tank is placed is loaded on an automatic conveyance vehicle, and the automatic conveyance vehicle is a target among a number of stations arranged along a conveyance path. Move to the station and transfer the moving tank carriage from the automatic carrier to the station base. And, since fixed equipment is gathered and installed so that predetermined work can be efficiently performed at each station, the moving tank carriage transferred to the station frame and the moving tank placed on the moving tank carriage are: The fixed device is connected to the above-described automatic connection device to perform a predetermined work, and when the work is completed, the work is moved to another station and the work is continued successively.
Therefore, the work of each process such as reaction and stirring is completed in the same tank, so there is no risk of contamination, making it possible to produce a wide variety of products in small quantities, and in addition, production is performed under computer control, so automation and efficiency are improved. In this respect, a remarkable effect is expected.

However, this technology requires a huge amount of equipment because the mechanism is somewhat complicated and a moving tank carriage on which the tank is placed by adopting a transfer device that is difficult to operate can be transferred and restored from the automatic carrier to the station base. The problem (problem 1) that became expensive and expensive.
In addition, since it is necessary to lay a transport path along which the automatic transport vehicle moves and to arrange each station frame along the transport path, a problem that requires a large equipment area (problem 2), In order to arrange the equipment together, it must be a linear arrangement, and there is a problem (Problem 3) where the degree of freedom of arrangement is small.

Therefore, in Patent Document 2, the present applicants are able to measure and receive a plurality of raw materials on the transport path in order to solve the above problems, and transfer or return the mobile tank to each station. A high-mix low-volume production method using a moving tank was proposed to perform the push-pull method.
This technology can move with a small force by adopting a configuration that guides and moves the air levitation type carriage loaded with the load cell stage loaded with the moving tank to each station arranged along the transfer path. This greatly contributed to the solution of the first problem.

Further, in Patent Document 3, in order to solve the above problems, the moving tank is loaded on an air floating carriage, the carriage is placed on a turntable, and the turntable is turned in the direction of a target station, and the air floatation is performed. A moving tank transfer / return device that can be freely transferred to and returned to the target station with a slight force while operating the trolley is provided.
In particular, this technology greatly contributes to the effective use of factory land because the space required for turning and moving the air levitation truck is minimal, and it also contributes to changes in product brands and increases and decreases in production volume. Since it becomes possible to follow quickly, it has an excellent effect in that it can sufficiently cope with multi-variable variable production expected in the future, and contributes to the solution of the second problem.

However, in any technique, not all the above-mentioned problems can be solved at the same time. In particular, since the flow line of the moving tank is determined in advance, the degree of freedom of the equipment arrangement mentioned in Problem 3 is increased. There remains a problem that cannot be done.
In addition, it is also preferable to provide a cart that allows an operator to directly transport a moving tank to meet the needs of a production system that can be produced in a small amount and has a small turn.

  When providing the carriage, the moving tank is very heavy, so it is necessary to suppress the burden on the worker during transportation, it is necessary to transport the moving tank reliably and stably, and the work equipment at each station In order to connect the moving tank and the moving tank, it is necessary to satisfy the conditions such as being able to place the moving tank on the station with high positional accuracy, and a cart that effectively solves these problems has not been provided.

The present invention has been created in view of the above-described problems of the prior art, and its purpose is to improve the degree of freedom of equipment arrangement to realize an efficient production environment and to reduce the cost while maintaining a large size. It is providing the air levitation type carriage of the moving tank used for the production method by the moving tank which can be moved safely and simply.

In order to achieve the above object, the production method using a moving tank according to the present invention has the following features.
That is, the present invention is an air levitation type carriage for transferring and returning a moving tank to a station base for performing a predetermined operation and for transferring between the stations, the base having a grip handle attached thereto, It is composed of a substantially U-shaped moving tank loading section that forms a right loading section and a left loading section that are connected to the base, and air is sprayed toward the floor surface on the lower surface of the moving tank loading section. Air levitation means that floats up and down is disposed, and lift means that can raise and lower the base portion of the movable tank are disposed on the upper surface of the right and left loading sections of the movable tank loading section, respectively, and the lift On the upper part of the means, a fall prevention means comprising a plurality of fall prevention guard posts and a plate-like fall prevention guard horizontally installed on the support posts is erected, and the right loading of the moving tank loading section On the sides of the left and right loading sections It arranged a pair of guide means so as to respectively face the pedestal sides, characterized in that is formed to provide an air floating type carriage.
Using the air levitation type carriage, an operator operates the air levitation type carriage with the handle, and the guide means conveys it to a position facing both side portions of each station base, and the position is moved by the lift means. After the step of transferring the tank onto the station frame and the predetermined operation, the respective operations of the step of returning the moving tank onto the air levitation transfer carriage by the lift means can be sequentially repeated.

According to the present invention, there is provided a moving tank provided with the moving tank base portion, the moving tank positioning means for positioning with the cart, and the moving tank fixing means for connecting and fixing after positioning. Ru it is possible to provide an air floating truck.

The following effects are achieved by the above means. That is, according to the present invention, it is possible to provide an air floating Shikidai vehicle for moving bath and placing product, a predetermined work at each station with transfer-return to the station platform.
Thereby, the freedom degree of arrangement | positioning of production equipment becomes very high, and since it is not necessary to prepare a conveyance path etc., it contributes also to suppression of cost. Furthermore, it is possible to easily change, expand, or reduce production facilities.
Further, according to the air flotation type carriage of the present invention, an operator can easily and safely move a “tank” or the like of a super-heavy object. Furthermore, according to the air levitation type carriage of the present invention, since no conveyance path or the like is used, the cleaning property of the production equipment is improved, and it is possible to cope with the site where a clean environment is required. By using mainly air for driving, high explosion-proof property can be maintained and it can be used for manufacturing various productions.

According to the present invention, the movable tank is loaded at a predetermined position by including the movable tank positioning means for positioning the movable tank base with the movable tank base and the movable tank fixing means for connecting and fixing after positioning. Therefore, it contributes to the improvement of safety during transportation and the improvement of positioning accuracy during transfer to the station.

According to the present invention, it is possible to load the moving tank at a predetermined position by including the moving tank positioning means for positioning the moving tank base portion on the station frame and the moving tank fixing means for connecting and fixing after positioning. Therefore, the connection can be made easily and surely when connecting to the work equipment or the like at the station.

The air levitation type carriage of the present invention can be transported by a worker with a small force even in an extremely large moving tank, and can be freely operated without being restricted by a transport path, etc., thereby contributing to an improvement in production efficiency. To do. In particular, it is possible to improve the safety of the work by providing a fall prevention means of the mobile tank product Nonaka.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, the best mode for carrying out the invention will be described based on examples shown in the drawings. The embodiment is not limited to the following.
In the present invention, a moving tank having a base is loaded on an air levitation type carriage, and a predetermined work is performed at each station while being transferred to and restored from the station base. An air levitation type carriage used for a production system using a moving tank that is manually driven is provided.

FIG. 1 is a perspective view of an air levitation type carriage (100) according to the present invention, FIG. 2 is a moving tank (200) loaded with the air levitation type carriage , and an example is a perspective view of an agitator, and FIG. It is a perspective view of a gantry (300). The present invention loads the moving tub (200) on an air floating trolley (100), and transfers and returns the moving tub to the station gantry (300) provided in a plurality of stations. production can be carried out while.

First, the structure of the air floating bogie (hereinafter referred to as bogie) (100) will be described.
The cart (100) is divided into a first layer plan view shown in FIG. 4, a second layer plan view shown in FIG. 5, and a third layer plan view shown in FIG. A base (102) provided with a handle (101) for the operator to operate the carriage (100) during transportation, a right loading part (103) extending to the right front as viewed from the operator, and extending to the left front The left stacking portion (104) is substantially U-shaped.

At the uppermost part of the cart (100), three fall prevention guard columns (110) are provided standing upward from the height of the second layer of the loading units (103) (104). Between the uppermost ends, a plate-like fall prevention guard (111) is horizontally provided via a link member (112). The fall prevention guard column (110), the link member (112), and the fall prevention guard (111) are integrally formed.
The overturn prevention guards (111) are opposed to the upper surface of the station base (300) as shown in FIG. 8, and prevent the moving tank (200) from overturning during transportation.

Next, in the second layer shown in FIG. 5, positioning pins (120) that fit into positioning holes provided in the base portion of the moving tank (200) at both ends of the right and left stacking portions (103) (104), respectively. (121) is disposed, and when the moving tank (200) is set, the positioning pins (120) and (121) protrude upward to fix.
Further, between the positioning pins (120) and (121), as clearly shown in the side view explanatory view shown in FIG. 7 and the front view explanatory view shown in FIG. 8, a lift mechanism (with an air jack (122) inside) is provided. 123), and the lift mechanism can be moved up and down by driving the air jack.
In addition, in preparation for a failure of the air jack (122), a pair of safety pins (124) are attached to the front and rear so that the movable tank (200) can be stably secured at the raised position, and the safety pin (124) protrudes when raised. In this way, safety is improved.

Further, in order to prevent the mobile tank (200) from toppling over when it is loaded, an anti-tip pin (125) is provided in the horizontal direction so as to face each stacking section (103) (104), and the base of the mobile tank (200) is provided. It is configured to be fitted and fixed.
The perspective view in FIG. 1 is another embodiment, and the guide column (125 ′) erected on the lift mechanism (123), not the fall prevention pin, is in contact with the side surface of the base of the moving tank (200) and pressed. By supporting it, it tries to prevent falling. It can be appropriately provided depending on the weight of the moving tank, the width of the base portion, and the like.

Next, the third layer will be described with reference to FIG. 6. A pair of front and rear levitation air diaphragms (130) are arranged on the lower surface of each loading section (103) (104), and are directed toward the floor surface. Then, the compressed air is jetted to float the air of the cart (100), which is a feature of the present invention. In this embodiment, the flying height is about 0.1 mm, and the floor surface is constructed with a highly accurate plane.
As for the floating air, compressed air may be supplied from the outside by an air hose, or compressed air may be supplied by arranging a compressor in the carriage (100). In this case, it is desirable to supply the air hose.

In addition, a restraint wheel or a drive wheel (131) is provided between the air diaphragms (130), and when the operator presses down with the handle (101), the restraint wheel (131) contacts the floor surface. Thus, the movement of the carriage (100) can be suppressed.
Further, the restraining wheel (131) also contributes to preventing the bogie (100) from moving unexpectedly by interfering with the unevenness when the floor is uneven.
Further, when the drive wheel (131) is provided as another embodiment, it is possible to reduce the running resistance at the time of starting when performing the work, while suppressing the inertial force at the time of stopping, both of which improve the work efficiency. Contributes to improvement.

Next, the configuration of the moving tank (200) will be described with reference to FIG. In this embodiment, the biaxial stirring bowl main body (201) is fixed on the base portion (202) via support legs (203).
As shown in FIG. 2, the base portion (202) is integrally formed by welding a pair of vertical frames (204) having a frame having a cross-sectional shape and three horizontal frames (205) horizontally mounted therebetween. . Support plates (206) for fixing the support legs (203) are fixed to the upper surfaces of the vertical frames (204) (204) by welding. The frame has a sufficient strength.

Further, positioning pin holes (210) and (211) into which the positioning pins (120) and (121) of the carriage can be inserted are drilled in the base portion (202) as shown in the plan view of FIG. Has been.
Further, a positioning pin hole (220) into which a positioning pin of a station frame (300) described later is inserted is formed in the vicinity thereof, and a fastening pin coupling member (221) (221) for fixing the fastening pin by moving up and down. ) Is attached.

  Further, the configuration of the station frame (300) will be described with reference to FIG. The station frame (300) includes a jack bolt (301) for height adjustment, and an anchor bolt (307) for fixing the station frame (300) in a predetermined position, and a base plate (302) for mounting them. A vertical frame (304) formed in substantially the same structure as the base part (202) of the moving tank, fixed to the upper end of the support frame (303). A mounting portion (306) including a horizontal frame (305) is largely configured.

The station frame (300) is required to be mounted with a highly accurate moving tank (200) in order to carry out a predetermined operation, and therefore includes the following positioning / fixing means.
First, positioning pins (310) (310) are provided at four corners of the vertical frame (304). The positioning pins (310) can be expanded and contracted by lower actuators (311), and are projected upward when placing the base portion (202) of the moving tank into the positioning pin holes (220). The position is adjusted and positioned while being inserted.

Furthermore, the fastening pin (320) is attached to the narrow angle part of the vertical and horizontal frames (304) and (305) at the diagonal position. The fastening pin (320) is pivotally supported on the substrate (302) so as to be swingable, and the swinging drive is performed by a fixing air cylinder (321). The fastening pin (320) incorporates an actuator (322) that can be expanded and contracted in the vertical direction, and a lock body (323) that is a locking member is attached to the upper end thereof.
With these configurations, after the positioning is completed, the actuator (322) is driven to extend the fastening pin (320), and the lock body is moved in the fastening pin coupling member (221) by the fixing air cylinder (321). It is driven to swing so as to be gripped and locked.
Further, a plurality of rotatable guide rollers (330) are attached to both side surfaces on the substrate (302) so as to facilitate the entry of the air floating cart (100).

Each device in the production system using the air floating bogie (100) and the moving tank in the present invention has the above-described configuration. Next, how these function will be described according to the process.
First, according to the production method according to the present invention, it is possible to arrange a plurality of stations (400) in a very space-saving manner as shown in FIG. 10, and an operator (401) operates a handle (101) to operate a carriage. (100) can be conveyed.
And the trolley | bogie (100) in the state which loaded the movement tank (200) like FIG. 11 is conveyed, and it conveys manually to the place of a certain station (400). At this time, since the carriage (100) is air-floating, it can be sufficiently operated with a small force, and good workability can be realized.

Then, as shown in the plan view of FIG. 12, the carriage (100) is brought close to the vicinity of the station base (300) of the station (400), and the inner guides of the right and left loading sections (103) (104) are arranged. The sections (140) and (141) are opposed to both outer sides of the station frame, and the guide rollers (330) provided on the side of the substrate (302) slide on the guide sections (140) and (141). The carriage (100) is pushed toward the station base (300).
At this time, the air jack (122) is operated to bring the lift mechanism (123) to the raised position, and the air jack safety pin (124) is protruded. Such a lift mechanism (123) is publicly known and has a box shape in which an upper lid is loosely fitted to a lower lid, and an air bag is built in the box. The bottom surface of the lower lid is fixed to the upper surface of the stacking portion (103) (104), and when the air bag is injected and inflated with an air jack, the upper lid is raised.

The station base (300) is just fitted into the U-shaped inside of the carriage (100), and after pushing to a predetermined position, the positioning pins (310) (310) are projected.
In this state, the base portion (202) is in a floating state from the placement portion (306) of the station base (300). Therefore, when the air jack (122) is operated to lower the lift mechanism (123), the positioning is performed. The pins (310)... Are guided into the positioning pin holes (220). Further, the base portion (202) is fixed by the fastening pin (320).

Thus, the transfer of the moving tank (200) from the cart (100) to the station frame (300) is completed. FIG. 13 is a perspective view of the station frame (300) on which the moving tank (200) is placed.
In the station (400), a predetermined operation such as a stirring operation is performed. The work at the station can be carried out individually, for example, raw material charging, auxiliary raw material charging, stirring, dispensing, washing, etc., but the present invention can be used for any product such as food, chemical products, paints, and pharmaceuticals. Since this is a production method that can be performed, the work performed here can be set according to the product and is not limited at all.

Next, after the work is completed, the carriage (100) is pushed in by sliding the guide rollers (330) of the station base (300) and the inner guide portions (140) (141). The fastening pin (320) is opened, and the position fixing pin (310) is further contracted to free the base base (202), and then the lift mechanism (123) is raised to hold the carriage (100). .
Further, as shown in FIG. 14, while the lift mechanism (123) is lowered, the positioning is performed such that the positioning pins (120) and (121) are inserted into the positioning pin holes (210) and (211). The moving tank (200) is surely loaded on the upper predetermined position. At the same time, the fall prevention pin (125) is fitted and fixedly connected to the base portion of the moving tank (200). After loading, the fall prevention guard (111) is changed to a fallen state to prevent fall during transportation.

  As described above, the return of the moving tank (200) to the carriage (100) is completed, and the worker (401) operates the carriage (100) to transport it to the next station. The present invention provides a production system for performing a predetermined operation at each station (400) by repeating such steps.

It is a perspective view of the air floating type trolley | bogie which concerns on this invention. It is a perspective view of the movement tank concerning the present invention. It is a perspective view of a station stand concerning the present invention. It is a top view explanatory drawing (the 1st layer) of the air floating type cart concerning the present invention. It is a top view explanatory drawing (2nd layer) of the air floating type trolley | bogie which concerns on this invention. It is a top view explanatory drawing (3rd layer) of the air floating type trolley | bogie which concerns on this invention. It is side view explanatory drawing of the air levitation type trolley | bogie which concerns on this invention. It is a front view explanatory drawing of the air floating type trolley | bogie which concerns on this invention. It is a top view explanatory drawing of the station frame which concerns on this invention. It is a plane arrangement drawing of production equipment concerning this example. It is a perspective view of the state which loaded the movement tank on the air floating type cart. It is a top view explanatory drawing at the time of transferring a movement tank to a station stand. It is a perspective view of the state which mounted the movement tank on the station frame. It is a front view explanatory drawing at the time of returning a movement tank to an air levitation type cart.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Air floating type | system | group 101 Handle 102 Base 103 Right mounting part 104 Left mounting part 110 Fall prevention guard support | pillar 111 Fall prevention guard 112 Link member 120 121 Positioning pin 123 Lift mechanism 125 'Guide support 130 Air diaphragm 131 for levitation Wheel 140 Guide groove

Claims (3)

It is an air levitation type carriage for transferring and returning the moving tank to the station frame for performing a predetermined work, and for carrying between the stations,
  A base portion on which a handle for gripping is mounted, and a moving tank stacking portion having a substantially U-shape that forms a right stacking portion and a left stacking portion connected to the base portion,
  Air levitation means is provided on the lower surface of the moving tank stacking unit to inject air toward the floor surface, and the upper surfaces of the right stacking unit and the left stacking unit of the moving tank stacking unit are respectively Lift means capable of raising and lowering the base portion of the moving tank is disposed, and a plurality of fall prevention guard columns and a plate-like fall prevention guard horizontally disposed on the columns are provided above the lift unit. The fall prevention means consisting of
  In addition, a pair of guide means disposed so as to face both side surfaces of the station base are formed on the side surfaces of the right and left loading parts of the moving tank loading part. Trolley. The air levitation type carriage according to claim 1, wherein a plurality of fall prevention pins are further provided on the upper surfaces of the lift means of the right and left loading parts of the moving tank loading part. Wherein the mobile tank loading unit includes a base portion of said mobile tank, and wherein a moving vessel positioning means for positioning with the carriage, that the mobile tank fixing means for connecting and fixing is provided after positioning The air flotation type carriage according to claim 1 or 2 .

Images