JP2818558B2 - Opening / closing door device in molded article processing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molded article processing apparatus for curing molded articles formed by a molding machine or the like by post-processing such as heating and humidification when manufacturing concrete products and ceramic products, for example. Opening / closing in a molded article processing apparatus for opening and closing the carry-in position of an unprocessed molded article or the carry-out position of a post-processed molded article while keeping a processing chamber for storing the molded article and performing the post-processing in an airtight state. The present invention relates to a door device.

[0002]

2. Description of the Related Art Conventionally, for example, when manufacturing concrete products, mortar products, ceramic products, etc., in order to cure molded products formed by a molding machine which presses and forms while applying vibration to raw materials such as mortar. In the post-processing, the molded article was carried into a processing chamber.

However, it takes time and labor to carry the molded article into the processing chamber and to carry out the post-processed product from the processing chamber. It was difficult to handle because it easily collapsed due to vibration or impact, and cracks and the like were easily formed.

[0004] From this point, the present applicant automatically loads a molded product molded by a molding machine and placed on a pallet into a multi-row, multi-stage movable storage shelf movable in a processing chamber.
Japanese Patent Application No. Sho 61-61 proposes an automatic processing device for molded products that automatically carries out the processed molded product (product) at the same time as the loading.
156175 filed earlier. An outline of a processing apparatus according to the invention of this application will be described with reference to a plan view of FIG. 6 and a side view of FIG.

[0005] This processing apparatus is formed by a molding machine A.
Multi-stage for storing molded products placed on pallets, for example
・ Provides multi-row shelves and can move intermittently on track K
The moving storage shelf B and the moving range of the moving storage shelf B
Two processing chambers C before and after_1,C _TwoAnd molded articles
Is placed on a pallet, for example.
After being stored in one of the multi-stage, multi-row shelves
You.

At the middle of these two processing chambers C _{1 and} C ₂ , which corresponds to a substantially middle position of the entire length of the _two processing chambers, a loading station D for loading a molded article into each stage of the movable storage shelf B.
And an unloading station E for unloading post-processed products.

F is a molded article transporting device for transporting the molded article placed on the pallet from the molding machine A to the loading station D, and the leading end of the loading station D side stores the molded article in the movable storage shelf B. It is moved to the height of the shelf by the drive of the loading station D.
A product transport apparatus, the tip of the output station E side moving storage rack for moving the product on the pallet with finished the curing processing chamber C _1, C ₂ from the carry-out station E to the product take-out portion H is The unloading station E is moved to the level of the shelf from which the product B is taken out.

Further, I is a pallet transfer device for re-moving the empty pallet from which the product has been taken out at the product take-out section H to the molding machine A and repeatedly using the pallet. Incidentally, H ₁ is a suction means for adsorbing product placed on the pallet transport, placed on the product conveying path H _2.

The post-processing work in this conventional processing apparatus is automatically performed as follows. The molded product formed by the molding machine A is placed on a pallet prepared in advance on the molded product transport device F, and is transported to the loading station D by driving the molded product transport device F. At this time, the leading end portion of the molded article transport device F is moved by the carry-in station D to the height of the shelf for storing the molded article in the movable storage shelf B, for example, the height of the lowest shelf.

The carry-in station D stores the articles transported by the article transport apparatus F in the storage shelves of the planned movable storage shelves B together with the pallets. At this time, post-processing is performed on the storage shelves. If a product exists, the product is also taken out of this storage shelf by the carry-out station E and transferred to the product take-out section H from the product transfer device G at the same time as the storage of the molded product by the carry-in station D, and the suction means H It is transferred, placed on the product conveying path H ₂ by _1.

Next, the leading end of the molded article transport device F is moved from the bottom of the movable storage shelf B to the height of the second storage shelf by the loading station D, and is transported from the molding device A by the molded article transport device F. The next molded product is stored in the storage shelf of the second movable storage shelf B from the bottom together with the pallet.

By repeating such an operation for the storage shelves in each row of the first row of the movable storage shelf B, when the molded article is stored in all the storage shelves in this row, the movable storage shelf B is moved. The storage shelf B is moved forward (leftward in the figure) by one row of the storage shelf.

In the same manner as described above, when the molded articles are stored in the storage shelves of each row of each row of the movable storage shelves B, the movable storage shelves B sequentially move forward, and the movable storage shelves storing the molded articles are sequentially moved forward. Shelf B
Although the storage shelves Yuku entered into the sequential processing chamber C _1, since the process chamber C ₁ is maintained in an atmosphere which is suitable for curing the molded article, the molded article is cured by this treatment chamber .

When all the molded articles are stored in the storage shelves of each row and each stage of the movable storage shelf B, the movable storage shelf B is moved backward (rightward in the figure) on the track K, and is moved. The first row of B is returned to the position shown in FIGS. 6 and 7 facing the loading station D and the unloading station E.

At this time, the molded product stored in the first row of the storage shelves B of the movable storage shelf B has been subjected to a post-treatment after a required curing period has elapsed, and is thus a product. Then, at the same time as the next molded article is carried in from the carry-in station D, this product can be carried out.

[0016] On the other hand, the storage shelves of each column of the second row and subsequent movement storage rack B is located in the process chamber C _2, the process chamber C ₂
Since the atmosphere of the inner is maintained in a state suitable for curing similarly molded article and the process chamber C _1, molded articles stored in the storing shelves of each column of the second row after the processing chamber C Curing can be continued within ₂ .

As described above, when the storage of the molded articles in the storage shelves of each stage of the first row of the movable storage shelves B is completed, the movable storage shelves B
Moves forward by one row, and the molded articles are stored in the second row of storage shelves and the products are unloaded from the storage shelves in which the storage is performed. The molded articles stored in the second row are the lack of curing period in the processing chamber C ₁ is rope complement by curing in the process chamber C _2. Also, curing of the third column and subsequent storage molded article is housed in the rack of the mobile storage rack B, and the second column of storage molded article is housed in the rack when the processing chamber C ₁ similarly treated performed in the chamber C ₂ Prefecture.

[0018]

In the above-mentioned conventional processing apparatus, a carry-in station D for carrying a molded article into an intermediate position between the _two processing chambers C1 _and C2 and a carry-out station E for carrying out a product are provided. , A large opening is required in the processing chamber, and it is difficult to maintain the processing chamber in an airtight state due to the presence of this opening, and a large loss of energy such as heat and water vapor is generated. C _1, C ₂
In order to secure curing conditions such as processing temperature and humidity in the inside, a large amount of heat source was required, and equipment costs and manufacturing costs were expensive.

Therefore, the present invention provides an opening / closing door device which keeps the processing chamber airtight by minimizing the opening when carrying the molded article into the processing chamber or carrying out the product from the processing chamber. Accordingly, it is an object of the present invention to solve the above problem.

[0020]

As shown in the principle diagram of FIG. 1, a plurality of door constituting plates (16a to 16l) having a size corresponding to an opening (S) through which a molded product can pass, A pair of guide frames (15) in which the door component plate is movable in the vertical direction, and a sliding groove into which the edge of each door component plate is inserted in a state where the plurality of door component plates are stacked. , 15), a plurality of door component plate locking mechanisms (17a to 17l) provided at intervals in the guide frame, and a storage shelf for storing a molded product therein, and the guide frame is provided at the opening thereof. And a push-up cylinder (19) that pushes up a plurality of door component plates inserted into the pair of guide frames, to form an opening / closing door device in the molded article processing apparatus.

The lifting cylinder may move at least the lowermost door component plate of the plurality of door component plates inserted into the pair of guide frames downward by the height of the opening. it can.

Further, as another configuration, a plurality of door component plates having a size corresponding to the opening through which the molded product can pass,
A pair of guide frames formed with sliding grooves into which the edge of each door component plate is inserted in a state where the door component plate is movable in the vertical direction, and the plurality of door component plates are stacked. A lifting means for lifting the plurality of door component plates, a plurality of door component plate locking mechanisms provided at intervals on the guide frame, and a storage shelf for storing a molded product therein; And a pressing cylinder that presses down a plurality of door component plates inserted into the pair of guide frames, the opening / closing door device in the molded article processing apparatus can be configured. .

[0023]

FIGS. 1 (a) and 1 (b) are principle views showing the front surface of an opening / closing door device according to the present invention.
The opening of the processing chamber (corresponding to the rear of the door component plates 16a to 16l, not shown) is closed by the twelve door component plates 16a to 16l inserted in FIG.

The guide frame 15 reduces the friction with the door component plate 16 while maintaining sufficient sealing with the door component plate 16, thereby facilitating the movement of the door component plate and easy forming. Therefore, the door 16 can be formed of plastic or steel plate.
5 so that it has chemical and heat resistance and can be easily moved up and down.
A stainless steel plate having a thickness of about mm can be used.

FIG. 1A shows a state in which the entire opening of the processing chamber is closed by the opening / closing door device. When the lowermost door component plate 16a is pushed up by the push-up cylinder 19, all the door component plates are opened. 16a to 16l are each in the upper position, whereby the opening of the processing chamber is completely closed.

FIG. 2B shows a state in which an opening S indicated by mesh hatching is opened at a position corresponding to the lowermost part of the opening of the processing chamber. Is carried into the processing chamber, and the post-processed product is carried out of the processing chamber. Therefore, the opening S is large enough to carry in / out molded products and products.

In order to make the lowermost portion open, the position of the second door component plate 16b from the bottom is fixed by the lock cylinder 17b, and the lowermost door component plate 16a is fixed by the lock cylinder 17a. Is released and the lifting plate 19 lowers the support plate 18 by a height corresponding to the height of the door component plate 16, and the door component plate 16a is lowered by the height of one door component plate by gravity. A required opening S is formed.

In order to open a position corresponding to the second-stage door component plate 16b from the bottom, the third-stage door component plate 16c is locked by the lock cylinder 17c and the second-stage door component plate 16b from the bottom. The lock of the door component plate 16b and the lowermost door component plate 16a by the lock cylinders 17a and 17b is released, and the support plate 18 is lowered by one door component plate by the lifting cylinder 19.

The lowermost door component plate 1 as described above
When opening the position corresponding to the second-stage door component plate 16b from the state in which the position corresponding to 6a is opened, the third-stage door component plate 16c from the bottom is
It is sufficient that the lock is performed by the lock cylinder 17b while the lock is performed by the lock cylinder 17b.

In the above description, the door constituting plates 16a to 16a
Although the description has been given of the case of lowering 16l by gravity, as another embodiment, each door constituting plate 16a to 16l
Is lifted from above, and a cylinder that performs a lifting operation is provided in the middle part above the guide frames 15, 15 for guiding the door constituting plates 16a to 16l, instead of the push-up cylinder 19. An opening and closing door device having the same operation and function as described above can be obtained.

[0031]

FIG. 2 shows an embodiment of a lock mechanism for fixing and releasing the position of the door constituting plate 16 as described above with respect to a portion near one guide frame 15.
FIG. 2B is a front view, FIG. 2A is a cross-sectional view taken along a broken line a-a in FIG. 2B, and FIG. 2C is a cross-sectional view taken along a broken line c-c in FIG. is there.

As shown in FIG. 2C, the guide frame 15
Is formed with a groove 15a having a U-shaped cross section. Since both ends of the door forming plate 16 are inserted into grooves of a pair of guide frames (15 and 15 in FIG. 1), the door forming plate 16 is locked. In a state where it is not in the state, it can move up and down along the guide frame 15. In this figure, three flat plates 15b, 15c, 1
Although the guide frame 15 is formed by combining 5d, a guide frame having a groove as shown in the figure can be formed by combining members having appropriate shapes.

[0033] The lock cylinder 17 is provided in the front wall 15c of the guide frame 15, the pipe 17 ₁
By supplying hydraulic pressure to the lock cylinder 17, the piston 17a is pushed out as shown in the lower part of FIG.
By pressing the guide frame 6n against the rear wall 15b of the guide frame 15, the door constituting plate 16n is locked so as not to move.

Further, if supply the hydraulic pressure from the pipe 17 _2, as shown in the upper part of FIG. 2, the door arrangement plate 16 the tip of the piston 17a is retracted from the front wall 15c of the guide frame 15 of the lock cylinder 17 _Since the lock of _{n + 1} is released, the door constituting plate 16 _{n + 1} can move up and down along the groove 15a of the guide frame 15.

FIGS. 3 to 5 are views showing an embodiment of a molded article processing apparatus to which the opening / closing door device according to the present invention is applied. FIG. 3 is an overall plan view of the processing chamber with its upper surface removed, and FIG. FIG. 5 is an overall side view of the processing chamber with the side surfaces removed, and FIG. 5 is a cross-sectional view showing a part of the opening / closing door device 11 and the movable storage shelf according to the present invention.

1 is a multi-stage / multi-stage in which a predetermined number of molded articles placed on a pallet are carried in, and at the same time, post-processed molded articles (products) are carried out in a state of being placed on the pallet by the same number as the number of carried articles. The moving storage shelf 1 includes shelves arranged in a row.
It moves intermittently forward at an interval corresponding to the width of the row of shelves of the movable storage shelf 1.

The inside of the processing chamber 2 is sealed and subjected to a heating process and a steam process according to the type and material of the molded product to be cured.
It is formed in a substantially box shape having a length approximately twice as long as the molded product to be cured to obtain the quality and strength as a product conforming to the JIS standard. To determine the required volume of the processing chamber 2 to the minimum necessary based on the amount of molding production per unit time, thereby avoiding wasted space, thereby saving the curing heat source and steam and achieving efficient and effective use. This is because the molded product as a product is immediately taken out after the end of the curing time.

Reference numeral 4 denotes a movable storage shelf 1 in the processing chamber 2 in a state where a molded article formed by a molding machine 6 such as a pressure molding machine and conveyed by a molded article conveying device 7 is placed on a pallet.
A loading station 5 for carrying the articles into the storage shelves, and an unloading station 5 for carrying out the same number of articles (products) that have been processed in the processing chamber 2 at the same time as the carrying in, are carried out. 4 and the unloading station 5 are provided with elevating means for loading the molded article into each stage of the movable storage shelf 1 and unloading the post-processed molded article.

The carry-in station 4 and the carry-out station 5 are provided so as to face each other in a state of being close to both side surfaces at a substantially intermediate position of the processing chamber 2, and when the movable storage shelf 1 intermittently moves forward, these stations 4, 5 are provided. , Each row of the moving storage shelves 1 is sequentially moved to a position corresponding to the above. Or post-processed products can be carried out from a desired row of the row of the movable storage shelves 1.

The movable storage shelf 1 moves to the left on the track 3 in the processing chamber 2 from the position shown by the solid line to the position shown by the two-dot chain line. Openings 1 are provided on both sides of the processing chamber 2 corresponding to
3 and 14 are provided respectively.
From the transfer station 4, a molded article is carried into the movable storage shelf 1, and a processed molded article (product) from the movable storage shelf 1 is carried out to the carry-out station 5 through the opening 14. Has opening / closing door devices 11, 11
Are respectively provided.

In carrying in such a molded article and carrying out the product, a position corresponding to the shelf of the movable storage shelf 1 in which the molded article is to be stored, or a movable storage shelf in which the product to be carried out is stored. It is desirable to form the opening of the door device 11 only at a position corresponding to the step of one shelf, and therefore, the door device according to the present invention is provided. This opening and closing door device 1
1 has already been described in detail with reference to FIGS. 1 and 2, and therefore, in this embodiment, FIG.
Will be described briefly.

As described above, when the lowermost door component plate 16a is lowered to open a position corresponding to the lowermost storage shelf of the movable storage shelf 1, the door component plate 16a is locked by the lock cylinder 17a. The doors are released so that the door component plate 16a can be lowered, and the rods of the lock cylinders 17b to 17l provided corresponding to the door component plate 16b at the second stage from the bottom and the door component plates 16c to 16l above it, respectively. 17 ₀ the extruded guide frame 15 plates these doors configured by pressing these door structure plate 16b ～16L the wall 15b after 1
When the rod 19a of the push-up cylinder 19 is contracted by a length substantially corresponding to the height of the door forming plate 16, the rod 19 of the push-up cylinder 19 is locked.
The support plate 18 attached to the end of the lowermost door component plate 16a is also lowered by the reference line Z.
The guide frame 15 descends while being guided by the sliding groove 15a of the guide frame 15 until it substantially coincides with the above.

The reference line Z has a height corresponding to the upper surface of the lowermost shelf of the movable storage shelf 1, and therefore moves when only the lowermost door component plate 16a is lowered as described above. It is possible to carry in the molded product to the lowermost shelf of the storage shelf 1 or to carry out the product from the lowermost shelf.

In order to open the door component plate 16b at the second level from the bottom in order to carry in / out the molded article / product to the second level from the bottom of the movable storage shelf 1, the lowermost level and the lower level are required. 2
The rods of the lock cylinders 17a, 17b provided corresponding to the door construction plates 16a, 16b of the lower stage are retracted to unlock the door construction plates 16a, 16b, and the upper side of the third stage from the bottom. The rod is pushed out by the lock cylinders 17c to 17l provided corresponding to the door constituting plates 16c to 16l, and the rear wall 15b of the guide frame 15 is pushed out.
When these door component plates 16c to 16l are pressed and locked, the door component plates 16a and 16b of the lowest stage and the second stage from the bottom are placed on the support plate 18 in a vertically stacked state. .

Therefore, in this state, the lifting cylinder 19
When the rod 19a is contracted by a length substantially corresponding to the height of the door component plate 16, the support plate 18 attached to the end of the rod 19a is also lowered accordingly, and the lowermost door component plate 16a and The second door configuration plate 16b from the bottom is guided by a guide frame until the upper edge of the second bottom door configuration plate 16b substantially coincides with the height of the upper surface of the second shelf from the bottom of the movable storage shelf 1. It descends while being guided by the 15 sliding grooves 15a.

As a result, the lower edge of the third lower door component plate 16c locked so as not to descend and the upper edge of the second lower door component plate 16b lowered as described above. An opening through which the molded article can pass is formed, so that the molded article / product is loaded / received between the carry-in station 4 and the carry-out station 5 and the second shelf from the bottom of the movable storage shelf 1 through this opening. Unloading can be performed.

By repeating such an operation, the movable storage shelf 1
Openings corresponding to the third shelf from the bottom, the fourth shelf from the bottom,..., The uppermost shelf, respectively.
From the lowermost shelf in the front row of the movable storage shelf 1, it is possible to carry in / out the molded article / product from each of the uppermost shelves.

In this way, when the transfer of the molded article and the unloading of the product to the uppermost shelf, which is the twelfth stage from the bottom of the front row of the movable storage shelf 1, are completed, the movable storage shelf 1 is moved to the first shelf. By moving the track 3 to the left in FIG. 3 by an amount corresponding to the width of the row, and repeating the above-described operation, the lowermost shelf of the second row of the movable storage shelf 1 is shifted to the uppermost shelf. Can be carried in and out of each of them.

When the loading / unloading of molded articles / products on the second row of the movable storage shelves 1 is completed, the movable storage shelves 1 are again moved by an amount corresponding to the width of the one row of shelves. Moves forward and then carries in / out the molded articles on each shelf in the third row of the movable storage shelf 1, and repeats the sequential opening operation of the opening / closing means 11 and the movement operation of the movable storage shelf 1 described above. By returning it, it is possible to carry in the molded article and carry out the product to the shelves in all rows and all stages of the movable storage shelf 1.

Other than that, the structure of the entire automatic processing apparatus used in this embodiment is almost the same as that of the conventional processing apparatus shown in FIGS. 7 and 8, and 6 is a molding machine for molding a molded product.
7 is a transfer device for placing the molded product formed by the molding machine 6 on a pallet and transporting it to the loading station 4;
Numerals 8 and 9 transport the molded product from the unloading station 5 after being processed in the processing chamber 2 to the molded product take-out section 10 via the pallet, and remove the empty pallet to the molding machine 6 again. This is a transport device for repeated use.

In the above embodiment, the door component plate 1
6a to 16l have been described as descending by gravity. However, as described above, the door component plates 16a to 16l are lifted from above and the door component plates 1a to 16l are lifted.
The opening 12 may be formed by providing a cylinder for performing a lifting operation at the upper intermediate portion of the pair of guide frames 15, 15 for guiding 6 a to 16 l instead of the cylinder 19.

In the above embodiment, a loading station 4 and a loading station 5 are provided opposite to the loading side and the loading side of the processing chamber 2 for curing as post-processing. The opening and closing door device according to the present invention is provided in the opening 12 on the side surface of the processing chamber 2 to be processed. However, the installation locations of the stations 4 and 5 and the opening 12 of the processing chamber 2 facing these stations are not limited to two places. The number may be large.

In the above embodiment, the movable storage shelf 1
Are movably housed in a processing chamber 2 having a length approximately twice as long as the carry-in station 4 and the carry-out station 5.
Are provided at a substantially intermediate position of the processing chamber 2, and the loading station 4 and the unloading station 5 are connected to the processing chamber 2.
And an opening 12 is provided on the side surface of the processing chamber 2 corresponding to each row of the movable storage shelves 1 so as to be relatively movable with respect to the movable storage shelves 1. It is also possible to release only the carry-in portion or the carry-out portion of the opening 12 and carry in or carry out the molded product only through this opening.

The object on which the opening and closing door device according to the present invention should be installed is not limited to the treatment room 2 for curing, but can be installed not only in the treatment room 2 but also in other closed rooms. The type and use of the product are not limited to those of the above embodiment.

[0055]

The opening and closing door device according to the present invention has a special effect that the structure is simple and can be made robust. By using the opening and closing door device of the present invention, only the opening having a size that allows the molded article to pass through when the molded article is carried into and out of the processing chamber is opened into the processing chamber. Is maintained in a constant environment with high airtightness, the processing time of post-processing is shortened, and furthermore, fuel and processing materials for maintaining the processing chamber in a predetermined environment can be effectively used, and the strength is high. Good quality products can be obtained.

[Brief description of the drawings]

FIG. 1 is a front view showing the principle of a door device according to the present invention.

FIG. 2 is a sectional view showing an embodiment of a door component plate lock mechanism of the opening and closing door device according to the present invention.

FIG. 3 is a plan view of an embodiment of a processing apparatus to which the present invention is applied.

FIG. 4 is a side view of an embodiment of a processing apparatus to which the present invention is applied.

FIG. 5 is a sectional view of a main part of an embodiment of a processing apparatus to which the present invention is applied.

FIG. 6 is a plan view of a conventional molded article processing apparatus.

FIG. 7 is a side view of a conventional molded article processing apparatus.

[Explanation of symbols]

11 Opening / closing door device, 15 Guide frame, 16a to 16l
Door component plates, 17a to 17l: Lock cylinder, 18: Support plate, 19: Push-up cylinder, 19a: Rod, S: Opening.

Claims (3)

(57) [Claims] 1. A plurality of door component plates having a size corresponding to an opening through which a molded article can pass, wherein the door component plates are vertically movable and the plurality of door component plates are stacked. A pair of guide frames formed with sliding grooves into which the edges of the respective door component plates are inserted in a state where the door components are placed, a plurality of door component plate locking mechanisms provided at intervals in the guide frames, and a molded product. A processing chamber having a storage shelf for storing therein, and the guide frame is provided at the opening thereof, and a push-up cylinder that pushes up a plurality of door component plates inserted into the pair of guide frames, An opening / closing door device in a molded article processing apparatus, comprising: 2. The push-up cylinder according to claim 1, wherein at least the lowermost door component plate of the plurality of door component plates inserted into the pair of guide frames can be moved downward by the height of the opening. The opening / closing door device in the molded article processing apparatus according to claim 1. 3. A plurality of door component plates having a size corresponding to an opening through which a molded article can pass, wherein the door component plates are vertically movable and the plurality of door component plates are stacked. A pair of guide frames formed with sliding grooves into which the edges of the respective door component plates are inserted, lifting means for respectively lifting the plurality of door component plates, and a space between the guide frames A plurality of door component plate locking mechanisms provided, a storage shelf for storing molded products therein, a processing chamber provided with the guide frames at openings thereof, and a processing chamber inserted into the pair of guide frames. And a pressing cylinder for pressing down a plurality of door component plates.