JPH0640164Y2 - Continuous transport device - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a continuous transport device, in which there is no drop of transported objects,
Moreover, it is an object of the present invention to provide a continuous transport device capable of transporting high-temperature objects and easily cleaned.

<Prior Art> Four corners of a transfer container are connected and supported by four chains, and the chain is hung around a sprocket wheel to transfer the transfer container in horizontal and vertical directions to continuously transfer earth and sand. A transport device called a continuous transport device is known. As a prior document for such a conveying device, Japanese Examined Patent Publication 55-1
5363, JP-B-55-20964, JP-B-59-25765 and the like.

<Problems of Prior Art> In these conventional continuous transfer devices, a plurality of transfer containers are continuously connected to a chain. However, since there is a gap between the transfer containers, a rubber container or the like is formed between the transfer containers. It was equipped with a tongue to prevent falling of conveyed objects such as bulk. However, such a tongue has a short life due to wear and the like, and it is necessary to attach it separately to the transport container, which causes a complicated structure of the container and an increase in weight and cost. Further, the rubber tongue is vulnerable to high temperatures, and thus it has been impossible to convey high temperature objects in the past. Further, since deposits such as bulk remain on the transfer container, it is necessary to scrape off the deposits with a cleaner, but there is a defect that the rubber tongue bites into the cleaner. Further, due to this tongue, continuous cleaning is difficult to perform, and efficient cleaning has heretofore been impossible.

<Outline of the Invention> The present invention has been made in order to improve the drawbacks of the above-described conventional continuous transfer device, and has a predetermined number of wheels arranged at predetermined positions and four wheels wound around the wheels. Endless chain, and a plurality of transport containers connected to the endless chain at four positions on the front and rear sides thereof; a vertical transport unit for transporting the transport container in the vertical direction and the transport container. The lower horizontal transport unit is horizontally reciprocally transported on the lower side of the vertical transport unit, and the upper horizontal transport unit is horizontally reciprocally transported on the upper side of the vertical transport unit. In a unidirectional transport of a transport unit, the transport container is transported in an upside-down posture, rotates about 90 degrees along an upper corner wheel, and descends a vertical transport unit in a substantially vertical posture; The bottom of the carrier is at one end Has an extended end that overlaps with the other end side of the bottom of the other adjacent transport container, the bottom of the transport container forms a concave portion, and the extended end forms a convex curved surface continuous to the concave portion, and the upper corner is formed. It is characterized in that the wheel has a curvature such that the extension end does not collide with the other end side of the bottom portion of another transport container adjacent thereto.

With this extended end, it is possible to effectively prevent falling of a conveyed object such as a bulk, it is possible to convey a high temperature object, and continuous and efficient cleaning becomes possible.

<Embodiment> An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a side view thereof, and this continuous transfer device is composed of a vertical transfer section A, a lower horizontal transfer section C, and an upper horizontal transfer section B, and the extension direction of the lower horizontal transfer section C and the upper horizontal transfer section B is An example of a reverse so-called S-shaped continuous transport device is shown.

A juxtaposed wheel and a coaxial wheel are appropriately arranged at each bending position. That is, the lower side-by-side wheel 3 and the upper side-by-side wheel 4 which are the side-by-side wheels, and the drive coaxial wheel 5, the upper corner coaxial wheel 6, the lower-side corner coaxial wheel 7 and the return coaxial wheel 8 which are coaxial wheels are located at predetermined positions. It is arranged and a plurality of chains 1 are endlessly wound around it. In this embodiment, four chains 1 are used and a link chain is used as the chain. The reason why the link chain is adopted here is that, as a result of research conducted by the present inventors, the roller chain, which has been widely used in the past, has insufficient penetration of lubricating oil between the roller and the fitting, and is therefore generally believed. The life of the link chain is not as long as it is, but the performance of the link chain has improved due to the progress of heat treatment technology and welding technology in recent years.The structure of the link chain is simple and the lubricating oil may sufficiently penetrate the whole, This is because they have found that they are superior to roller chains in wear resistance.

Each wheel is composed of a pair of inner wheels and a pair of outer wheels. A pair of inner link chains is wound around the pair of inner wheels, and a pair of outer link chains is wound around the pair of outer wheels. .

Here, the side-by-side wheels are those in which a pair of wheels are arranged in the horizontal direction with a predetermined distance therebetween, and a configuration for changing the transfer direction while maintaining the horizontal state of the transport container 2 described later. Is. The juxtaposed wheels are usually cantilevers except the front wheel (the right side in FIG. 1) of the upper wheel 4 for passing the transport container 2, and have a structure in which there is no shaft in the central portion. .

Further, the coaxial wheel has a pair of wheels and a pair of other wheels arranged coaxially, and has a configuration for changing the direction of the transport container 2 mounted on the four link chains 1 as described later. is there.

As described above, the transport container 2 is connected to the link chain 1 at the four corners thereof, the transported object is supplied from the loading port D in the lower horizontal transport portion C, and the transport direction is changed in the vertical direction in the lower juxtaposed wheel 3. After being converted and moved upward, the upper side-by-side wheel 4 again changes the transfer direction in the horizontal direction, and the driving coaxial wheel 5 reverses the direction upside down to drop the transported object to the discharge port E. Then, the transport container 2 moves in the horizontal direction while being turned upside down, and in the upper corner coaxial wheel 6, the vertical direction is again changed and the carrier container 2 descends. At this time, the transfer container 2 is transferred while standing vertically. Then, the lower corner coaxial wheel 7 further changes the direction to the horizontal direction, horizontally moves in the upside-down state, the return coaxial wheel 8 reverses 180 degrees, and again receives the object to be conveyed at the loading port D, Repeat the operation.

In the above structure, the transport container 2 has a special structure in the present invention.

FIG. 2 is an enlarged side view of the transport container 2, FIG. 3 is a front sectional view thereof, and FIG. 4 is a half plan view.

Each transport container 2 is composed of a bottom plate 20 and an extension end 21.
The bottom plate 20 starts from the front end portion 20f on the front end side in the traveling direction (arrow), descends in a smooth downward convex curve, and is located at the same level as the front end portion 20f, and the rear end portion on the rear side in the traveling direction. It goes up to 20r and forms a recess. An extension end 21 is formed integrally with the bottom plate 20 continuously with the bottom plate rear end portion 20r. The extension end 21 has an inflection point at the rear end portion 20r and forms an upwardly convex curve, ending at the rear end portion 21r. The side plate 22 has a shape matching the shapes of the bottom plate 20 and the extension end 21, and the extension end 21 part has a beak shape as a whole.

Each container 2 has its extended end 21 at the horizontal transport sections B and C.
Each of the transport containers 2 is arranged so as to overlap the bottom plate tip portion 20f of the next transport container 2 adjacent thereto from above.

Reference numeral 23 is a roller receiving flange.

When the extension end 21 is arranged so as to overlap the tip portion 20f of the bottom plate as described above, the wheel hits the upper side of the transport container 2 like the upper corner coaxial wheel 6 and each of the transport containers 2 to be connected bends upward. In the portion, there is a risk that the extension end 21 collides with the bottom plate tip portion 20f due to the bending angle. In this embodiment, in order to prevent this, the radius of the upper corner coaxial wheel 6 is made about twice as large as that of the other drive coaxial wheel 5, the lower corner coaxial wheel 7, etc., and the curvature is reduced to keep the bending angle small. There is.

With the above configuration, even if an object to be transferred such as a bulk is dropped from above the transfer container 2 that moves continuously in the horizontal direction, the object to be transferred does not drop from the gap between the transfer containers 2. In addition, there is no obstacle in the operation of the device due to the extension end 21 being overlapped with the bottom plate tip portion 20f of the adjacent container 2.

Further, even when scraping off the deposits inside the transport container 2 during horizontal traveling, since it continues from the bottom plate 20 to the next bottom plate 20 through the extended end 21, the cleaning can be performed easily and surely. This apparatus automates this cleaning, and this configuration will be described with reference to FIG.

The cleaner 9 is arranged at a position where the transport container 2 is inverted by the drive coaxial wheel 5 to be in an inverted state. The cleaner 9 is a hook-shaped scraper 90 that is rotatably supported by a fulcrum 92, a spring 91 that pulls the scraper upward, and a receiving roller 93 that supports the container 2 from the bottom to receive the upward pulling force. It consists of and. If the scraper 90 is continuously pulled by the spring 91, the bottom plate 20 of the transport container 2 is continuous by the extension end 21, so that the scraper 90 is continuously pulled.
The tip of 90 constantly contacts the bottom plate 20 and removes the deposits as described below, so that the transport container 2 can be automatically cleaned. The structure of such a cleaner 9 is made possible for the first time by the structure of the transport container 2 of the present invention.

Next, the connection structure between the transport container 2 and the link chain 1 will be described.

A front arm 30 is provided on the front side of the transport container 2 in the traveling direction, and a pair of rear arms 31 is provided on the rear side thereof. The container 2 is connected to the link chains 1a, b by the front arm 30 and the rear arm 31. There is. That is, as clearly shown in FIG.
30 is connected to the inner link chain 1b and the rear arm 31 is connected to the outer link chain 1a.

A cylindrical mounting member 32 is connected by welding or the like on the vertical link 10 of each link chain 1a, b, and the front arm 30 and the rear arm 31 are connected to this.

The forearm 30 is a mounting bracket portion 30 that is butted against the mounting bracket 32.
0, an arm 301 that supports this, and a rotation shaft 302 that rotatably connects these to the transport container 2, and this rotation shaft 302 is rotated by a bearing 303 provided at the bottom of the transport container 2. It is fitted as much as possible. Then, a female screw is cut in the mounting bracket 300, the mounting bracket 32 and the mounting bracket 300 are butted, and the mounting bolt 33 is fitted into the mounting bracket 32 and the mounting bracket 300,
The mounting bracket 300 and the mounting bracket 300 are screwed together, and the locking pin 34 is used to prevent the mounting bolt 33 from rotating, thereby connecting the mounting bracket 32 and the mounting bracket 300.

The rear arm 31 also has a similar structure, and the mounting bracket 31
It has a 0, an arm 311, and a rotation shaft 312, and the rotation shaft 312 is rotatably fitted to a bearing 313 formed at the bottom of the transport container 2. Since the rear arm 31 is configured to groin above the link chain 1b, the rear arm 31 is configured as a small diameter portion 314 so as not to project upward as much as possible.

In the connection structure as described above, since the connection can be made only by the mounting bolt 33 and the locking pin 34, the connection and disconnection work of the transport container 2 and the link chain 1 can be performed very easily. Also, fix the mounting bracket 32 on the vertical link 10 of the link chain 1,
Since it is connected to the transport container 2 on the vertical link 10, the connection work is easier, and the space between the transport container 2 and the link chain 1b and between the link chains 1b and a is so large. There is an advantage that it is not necessary to take it and it can be compactly assembled as a whole.

In the above description, the link chain has been described as an example, but the present invention is not limited to this and can be applied to other chains such as a roller chain.

<Effect of Device> As described above, the continuous transfer device of the present invention has a structure in which one end has an extended end that overlaps with the other end of another adjacent transfer container. Items will not fall between the transfer containers. Moreover,
It has a longer life and a simpler structure than the conventional structure in which a tongue is attached. Therefore, it is possible to reduce the size of the device and reduce the cost. In addition, since it does not have a tongue that is sensitive to high temperatures, it is possible to carry high temperature objects. Further, since the front and rear transport containers are continuous and biting of the tongue does not occur, there is an advantage that cleaning for removing adhered substances can be reliably performed with a simple device.

Further, since the curvature of the upper corner wheel is adjusted, the extension end and the bottom portion do not collide with each other even though the extension end is provided.

Further, by making the extension end a convex shape and the bottom shape a concave portion, the extension end and the bottom portion come close to each other when the upper corner wheel rotates, so that the bottom of the transfer container can be easily and continuously cleaned by a scraper or the like. There is an effect that it becomes possible.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the continuous transfer device of the present invention, FIG. 2 is an enlarged side view showing a transfer container, FIG. 3 is a front sectional view thereof, and FIG. 4 is a half plan view thereof. 5 is an enlarged view of the cleaner portion. 1: Link chain, 2: Transport container, 3: Lower side-by-side wheel, 4:
Top side-by-side wheel, 5: Drive coaxial wheel, 6: Upper corner coaxial wheel, 7: Lower corner coaxial wheel, 8: Return coaxial wheel, 9: Cleaner, 10: Vertical link, 11: Horizontal link, 20: Bottom plate, 20f: front end, 20r: rear end, 21: extended end, 21r:
Rear end, 22: side plate, 23: flange, 30: forearm, 31: rear arm, 30
0: Mounting bracket part, 301: Arm, 302: Rotating shaft, 303: Bearing, 310:
Mounting bracket, 311: Arm, 312: Rotating shaft, 313: Bearing, 314: Small diameter part, 32: Mounting bracket, 33: Mounting bolt, 34: Locking pin, 90: Scraper, 91: Spring, 92: Fulcrum, 93: receiving roller.

Claims (1)

[Scope of utility model registration request] 1. A predetermined number of wheels arranged at predetermined positions, and four endless chains wound around the wheels,
A plurality of transport containers connected to the four endless chains at four positions on the front and rear sides thereof; a vertical transport unit for transporting the transport containers in the vertical direction and a vertical transport unit for transporting the vertical transport. A lower horizontal transport unit that is horizontally reciprocally transported on the lower side of the vertical section, and an upper horizontal transport unit that is horizontally transports the transport container on the upper side of the vertical transport unit. In one-way transfer of the part, the transfer container is transferred in an upside-down position, rotates about 90 degrees along the upper corner wheel, and descends in the vertical transfer part in a substantially vertical position; in a continuous transfer device; The bottom portion of the transport container has an extension end on one end side that overlaps the bottom end other end side of another adjacent transport container, and the bottom portion of the transport container forms a recess, and the extension end is a protrusion continuous to the recess. A curved surface is formed, and the upper corner wheel is The continuous conveying device, wherein the extended end has a curvature that does not collide with the other end side of the bottom portion of another conveying container adjacent thereto.