JPH08216134A - Form for manufacturing covered conduit - Google Patents

Abstract

PURPOSE: To perform clamping and opening of a form by a simple rotating operation by connecting outside side boards with inside side boards through a moving mechanism consisting of a link mechanism which converts a pushing and pulling movement accompanied with opening and closing of the outside side boards into a movement in the reverse direction. CONSTITUTION: Outside side boards 30 and 30 are opened when a mold is disassembled and inside side boards 31 and 31 are interlocked to be opened. Then, a front side board 50 is opened, an interlocking lever 110 is retreated by rotating an interlocking arm 52 and opening of the front side board is advanced. Accompanied with this, a connecting shaft 64 of a rear side board 60 is pushed by the front edge part 115a of a slot 115 of a clevis part 114 of a rear part of the interlocking lever 110 and rear side board 65 is retreated with a supporting beam. In addition, when the outside side boards 30 and 30 are closed in the case of filling, the inside side boards 31 and 31 are interlocked to be closed. Then, the front side board 50 is raised to a specified position, the connecting shaft 64 of the rear side board 60 is pulled by the rear edge part 115b of the slot 115 of the rear end of the interlocking lever 110 and the rear side board 60 is forwarded to a specified position. Thereafter, when a clamping mechanism 400 is clamped, the whole frame is clamped in a short time.

Description

Detailed Description of the Invention

[0001]

[Industrial application] A manufacturing process that efficiently removes two underdrain blocks with a lid opening on the top without removing the core that has been shrunk during demolding. We provide a formwork for underdrain block manufacturing, which saves labor and reduces time, and makes it easy to automate the production line.

[0002]

2. Description of the Related Art A conventional underdrain block forming frame BK (for single picking) and an underdrain block B having a lid hanging opening k on its upper surface will be described with reference to FIG.

FIG. 10 is a perspective view of a conventional underdrain block manufacturing form (hereinafter referred to as a form BK). Front and rear end plates 5 and 6 are raised in front of and behind the underframe 1 on which the bottom face 2 is spread. Insertion hole 4 with a cross section of the core, which is hinged upside down and widened on the front and rear end plates 5, 6.
a and 4b are provided by punching, and left and right side plates 3 and 3 are hinged to the left and right sides of the underframe 1 so as to be able to move up and down, and a lid hooking insert 8 is fixed on the bottom surface 2 to form a frame. When attached, front and rear gables 5, 6 cores 4
Known fastening metal fittings 9 of a toggle mechanism are provided at the four corners of the upper part of the mold BK by tightly fitting both side plates 3, 3 and the like and opening them at the time of demolding. In the lower part of the figure, the underdrain block B provided with a lid hanging opening k and the lid hanging portion nest 8 are shown.

The conventional form BK is used at the time of placement (when the form is assembled).
Then, first, the left and right side plates 3 and 3 are raised, then the front and rear girder plates are raised to tighten the fastening mechanism 6 of the toggle mechanism, and then the core 4 that has been reduced and pulled out is transported by a forklift or the like. Since it is complicated to insert into the insertion holes 4a and 4b of the front and rear end plates 5 and 6 and then widen and fix it, the mold is assembled, and it is placed between the surface of the core 4 and the contact surface of the lid hooking insert 8. There was also a drawback that concrete wraps around.

At the time of demolding (when removing the product from the mold)
In this case, the core 4 is reduced and taken out by a forklift or the like to be transported to a predetermined place. After opening the front and rear end plates 5 and 6 and the left and right side plates 3 and 3, the underdrain block is lifted and released from the mold.

The mold BK of the prior art is manufactured because the core attaching / detaching process is complicated and time-consuming, and it is difficult to automate the mold releasing (including mold opening) and the placing (including mold assembling) processes. It is easy to automate the production line by saving labor and shortening the process time.
There has been a demand for a formwork for the production of two underdrain blocks.

[0007]

DISCLOSURE OF THE INVENTION Problems to be solved by the invention are eliminated, and in conjunction with the opening and closing of the front end plate, the rear end plate moves backward and forward, and the lid hooking part descends and rises to open and close the outer side plate. The inner side plate is opened and closed in conjunction with each other, and the mold can be tightened and opened by a simple rotation operation, which saves labor and time in the demolding and placing process, and is easy to automate the production line. To provide a formwork for the production of underdrain blocks.

[0008]

In order to solve the above-mentioned problems, according to the first aspect of the present invention, an underdrain block manufacturing in which a bottom part is spread on an underframe and front and rear gable plates which can be opened and closed, side plates and a core which can be expanded and contracted are provided. In the use form, a front gable plate 50 is pivotally attached to the front part of the underframe 10 so as to be openable and closable, and a rear gable plate 60 is erected on the rear part of the underframe 10 so as to be able to move back and forth and tilt backward, Two support beams 120, which loosely fit and carry the two cores 40, 40 from the gable plate 60 or the rear gable plate side, are projected forward in the horizontal direction,
An interlocking arm 52 is projectingly provided at the lower part of the front end plate 50, and the interlocking arm 52 and the rear end plate 60 are connected via an interlocking mechanism 100 having a floating range, and two sets of outer side plates 30 are attached to the underframe 10. 30 and the inner side plates 31, 31 are pivotally attached so that they can be freely opened and closed,
Between the outer side plate 30 and the inner side plate 31, the outer side plate 30,
A formwork for manufacturing an underdrain block is constructed by connecting via an interlocking mechanism 200 including a link mechanism that converts push-pull / pull movements associated with opening / closing of 30 into reverse movements.

According to the second aspect of the present invention, in order to construct the underdrain block, the upper surface of which has a space for hanging a groove or a grating for mounting a grating. The driving arm 53 is provided on the lower part of the front end plate 50, and the elevating mechanism 300 including a link mechanism for converting the rotational movement into the vertical movement is connected to the driving arm 53, and the space above the elevator 300. A formwork for producing an underdrain block according to claim 1, characterized in that a lid hooking part inserter 325 capable of being sealed and raised and lowered is connected to the inside of the part 25.

Further, according to the third aspect of the present invention, since the entire mold is tightened and released from the front or rear of the mold by a simple rotary operation by an automatic machine on the production line, the rotary head 411 is located at either the front or rear end. The front and rear parts of the threaded rod 410 provided in the rear part are threaded with opposite-phase threaded parts 410L and 410R, respectively, and the front threaded part 410L is provided with a limiting rod 430 on the tightening surface side in parallel with the screw axis. Tightening nut 400NR, in which the shaft portions 440 are projectingly provided on the left and right ends of the rear threaded portion 410R.
The shaft portion 440 is pivotally attached to a swingable positioning frame body 65 having a base portion pivotally attached to the lower rear surface of the rear end plate 60, and the screw rod 410 is rotated to the front and rear support members 420 and 425. The front support member 420 is movably supported and has a 90 ° arc-shaped restriction groove 43 in which the restriction rod 430 can slide and swing.
The tightening mechanism 400 provided on the front end face is internally provided, which constitutes a formwork for producing an underdrain block according to any one of claims 1 and 2.

[0011]

According to the formwork for manufacturing an underdrain block according to claim 1, when the front end plate 50 which can be tilted up and down is opened when the underdrain block is removed from the mold (when the product is taken out from the form frame), the front and rear end plate 50, 60.
Through the interlocking mechanism 100 provided therebetween, the rear end plate 60 is retracted while standing upright (the core 40 is contracted at this point), and then the outer side plates 30 and 30 are opened to open the inner side plate 3.
1, 31 are opened simultaneously via the interlocking mechanism 200, and if the underdrain block is slightly lifted, it is possible to remove the core in the front in a short time while leaving the reduced core on the form, and loosely fit the support beam to carry it (upward). -The core 40, which is provided with play in the left-right direction and the front-rear direction, can move in the direction with less contact resistance to reduce wear of the outer core of the core, and accidentally move the core when releasing from the mold. If there is excessive lifting beyond the range, the rear gable plate will be tilted backwards to prevent damage to the core and support beams.

In addition, at the time of pouring (when pouring concrete), after widening the core 40, the outer side plates 30, 3
When 0 is closed, the inner side plates 31 and 31 are interlocked and closed, when the front end plate 50 is raised, the rear end plate 60 advances, and when the formwork is tightened, it can be immediately placed.

It is possible to construct two underdrain blocks by one-time placement, and the complicated opening / closing of the inner side plates 31, 31 is also opened / closed in conjunction with the opening / closing of the left and right outer side plates 30, 30. The labor saving and the time saving can be achieved, and the existing formwork opening and closing machine that automatically opens and closes the left and right side plates for the single take-up formwork of the production line can be used as it is.

The mold for producing an underdrain block according to a second aspect of the present invention is such that, at the time of demolding, if the front end plate 50 is opened, the rear end plate 60 is retracted in conjunction with it, and the elevating mechanism 300 is operated to project onto the bottom surface part 20. The lid hooking part inserter 325 descends and the bottom part 20 is flattened. Next, the outer side plates 30, 30
When the inner side plates 31 and 31 are opened in conjunction with each other, the inner side plates 31 and 31 are opened, and after the core is contracted, the underdrain block can be slightly lifted (even if there is an uneven pattern on the bottom surface portion 20) to easily remove from the mold. Also, at the time of driving, the outer side plates 30, 30 after the core is widened
If the inner side plates 31 and 31 are closed in conjunction with each other, the front end plate 50 is raised and the rear end plate 60 moves forward in conjunction with it, and the lid hooking insert 325 is positioned in the space 25 of the bottom surface part 20. If you project it all the way up and tighten the formwork, you can place it immediately,
Labor saving and time reduction of the manufacturing process can be achieved.

The formwork for producing an underdrain block according to claim 3 has a screw rod 41 from the front part (or rear part side) of the formwork at the time of demolding.
When 0 is rotated to the left (to the right in the case of the rear side), the tightening of the front end plate 50 is released, and when the left rotation is further advanced, the tightening nut 400NL is rotated to the left by 90 °, and the front end plate 50 is rotated. It becomes possible to slip through the tightening holes 55 of the front end plate 50, and the front end plate 50 can be opened.
A known positioning pin p between the outer side plates 30 and 30 and the inner side plates 31 and 31 is pulled out, and at the same time, the rear end plate 60 is retracted in cooperation with the positioning frame body 66 in which the positioning pin p is implanted.
Oscillates toward the rear side of the rear end plate 60 and the positioning pin p comes off, and the rear end plate 60, the core 40 and the outer side plates 30, 30,
If the positioning between the inner side plates 31 and 31 is released and the core is reduced and the outer side plates 30 and 30 are opened, the mold can be immediately released from the mold.

Further, at the time of casting, the core widening front front end plate 50
, The front gable plate 50, the core 40 and the side plates 30,
The known positioning pins p between 31 are fitted together, and at the same time, the rear end plate 60 moves forward in an interlocking manner, and when the screw rod 410 is rotated rightward, the tightening nut 400NL rotates rightward to press the front end plate 50 and at the same time the positioning frame. The body 66 swings forward, and the rear end plate 60, the core 40, the outer side plates 30, 30, the inner side plate 3
The positioning pin p between 1 and 31 is also fitted, and the front and rear end plates 50 and 60 are tightened via the positioning frame body 66, and the entire form frame is firmly tightened only by a simple turning operation. Labor saving and time reduction can be achieved. Even if the distance between the front and rear end plates 50 and 60 is slightly changed by pressing the packing or the like when tightening the form, the interlocking mechanism 100 between the front and rear end plates 50 and 60 has a floating range, so that the front and rear end plates are even. It can be tightened to prevent deformation and prevent concrete from leaking out.

[0017]

1 to 8 are views showing an embodiment according to claims 1 to 3 of the present invention. FIG. 1 is a perspective view of a formwork for producing an underdrain block of the present invention, and FIG. The front view which carried out the partial cross section of the formwork for underdrain block manufacture of the invention, FIG. 3 is explanatory drawing of the interlocking mechanism of the front-back girder board of this invention, FIG. 4 is explanatory drawing of the interlocking mechanism of the outer side and inner side board of this invention, FIG. 5 is a perspective view of another embodiment of the connecting portion of the outer side plate of the present invention, FIG. 6 is an exploded perspective view of a main portion according to claim 2 of the present invention, and FIG.
8 is a perspective view of a tightening mechanism according to claim 3 of the present invention, FIG. 9 is a perspective view of an underdrain block made by the present invention, and FIG. 10 is a conventional underdrain block. It is a perspective view of a manufacturing form.

Although not in any particular order, first, referring to FIG. 9, an underdrain block B made of the underdrain block manufacturing frame of the present invention.
A, Bb, Bc, etc. will be described.

FIG. 9 is a perspective view of an underdrain block made according to the present invention. FIG. 9 (a) shows an uneven pattern (for example, a stone pattern or a tile pattern) on the upper surface in order to measure the road surface structure with an emphasis on the landscape. It is an underdrain block with a pattern etc. and opening openings K for lid hanging at both ends of the upper surface. It is an article to be used by inserting a groove lid or a grating for inflowing road surface water into the opening K for lid hanging on the upper surface. 9 (b) is an underdrain block Bb in which a pattern is attached to the upper surface and a lid hanging opening K is provided at one place in the middle of the upper surface. Further, FIG. 9 (c) is the same as the pattern described above on the upper surface. It is the underdrain block Bc without the opening K.

The above-mentioned underdrain block Ba shown in FIG. 9 (a).
In the case of manufacturing the above, a space portion 25 is provided at both ends of the bottom surface portion 20 of the formwork for producing an underdrain block of the present invention, and two lid hook portion inserts 325 are connected to the upper portion of the elevator 300 and used. b)
In the underdrain block Bb shown in FIG. 1, a space 25 is provided in the central portion of the bottom surface 20 and one lid-hanging part insert 32 is provided on the upper part of the lifting mechanism 300.
The underdrain block Bc made by connecting 5 and not having the lid opening K shown in FIG. 9 (c) has the bottom 20 without the space 25, and the front end plate 50 and the elevator 30.
It can be made by opening the connection of 0, and in each case, the face plate having the above-mentioned concavo-convex pattern is placed on the upper surface of the bottom surface portion 20 of the form, and naturally the surface plate is not used when there is no upper surface pattern. It should be noted that various shapes and sizes can be freely manufactured by changing the shape dimensions of the bottom surface portion 20 and the core cross section.

Next, an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view of a form for producing an underdrain block according to the present invention, in which an expandable and contractible core 40 is shown with an internal mechanism omitted, and a form in which a part of an outer side plate 30 and an inner side plate 31 is cut away. The closed state is shown. FIG. 2 is a partially sectional front view of the formwork for producing an underdrain block of the present invention,
It shows a state in which the form is closed by cutting out a part of the front end plate 50,
The two-dot chain line shows the mold open state of the outer side plates 30 and 30 and the inner side plates 31 and 31. The schematic configuration of the present invention will be described below with reference to both drawings.

The underdrain block manufacturing mold of the present invention shown in FIGS. 1 and 2 is a mold for taking two underdrain blocks Ba having a space K for covering on both ends of the upper surface, and in front of the underframe 10. The lower part of the front gable plate 50 is extended to the upper part and pivotally attached so that it can be freely opened and closed.
0 A supporting member 66 having wheels is inserted into a guide rail 61 provided on a rear side surface, and a mounting base portion 67 of a rear end plate 60 is pivotally attached to the supporting mechanism 66 so that the rear end plate 60 can be moved back and forth and can be tilted rearward. The interlocking arm 52 is provided in the vicinity of the center of the lower part of the front end plate 50, and the interlocking arm 52 and the rear end plate 60 are connected by the interlocking mechanism 100 having a floating range. By closing the form and opening the form, the rear gable plate 6
0 is erected so as to be able to move back and forth while being erected. Two support beams 120 are horizontally projected forward at a predetermined position of the rear gable plate 60, and the support beams 120 are expandable and contractible (having a cross-sectional dimension). The support frame 4 in which the core 40 without the internal mechanism is provided inside the core
It is configured so that it can be carried by loosely fitting (providing play in the upper, left, right, and front and rear directions) via 4.

A space 25 is formed at an arbitrary position on the two sets of bottom parts 20 (forming the upper part of the underdrain block) provided immediately below the core position, and at the bottom of the front end plate 50, two spaces are formed.
A set of drive arms 53 is provided so as to project, and two sets of elevating mechanisms 300 (described later) that convert the forward / backward movement of the drive arms 53 into elevating motions are connected to each other.
5, the lid hooking part inserter 325 interlocks with the opening of the front end plate 50 so as to rise in the space part 25 and project to the upper surface of the bottom part 20.

Left and right outer side plates 30, 30 are pivotally attached to both sides of the underframe 10 so as to be openable and closable, and two inner side plates 31, 31 are pivotally openable and closable near the center of the underframe 10. Wear
Between the connecting shaft 33 of the drive arm 34 hung vertically under the outer side plates 30, 30 and the connecting shaft 35 of the driven arm 36 hung vertically under the inner side plates 31, 31, a link mechanism described later with reference to FIG. When the outer side plates 30 and 30 are opened and closed by being connected by the interlocking mechanism 200, the inner side plates 31 and 31 can be opened and closed in conjunction with each other. In addition, reference numeral 39 on the outer side plates 30, 30 is an engaging portion 39 with a mold opening / closing machine of the production line.
Is.

Further, between the front and rear end plates 50 and 60, a tightening mechanism 400 (described later in detail) capable of tightening / releasing the mold of the entire mold by a simple rotating operation is provided. .

FIG. 3 is an explanatory view of the interlocking mechanism of the front and rear end plates of the present invention. FIG. 3 (a) is an explanatory view showing the structure, and FIG. 3 (b).
FIG. 6 is an explanatory diagram showing an action (operation). The configuration and operation will be described below with reference to the drawings.

Interlocking mechanism 10 for front and rear gable plates shown in FIG. 3 (a).
No. 0 has an interlocking arm 52 projecting from the lower center of the front end plate 50, while a connecting shaft 64 is provided at an adaptive position below the rear end plate 60 which is rotatably rotatably supported. The space is connected to the rear clevis portion 114 by an interlocking rod 110 having a long hole 115. Reference numeral s in the figure is a stopper s when the front end plate 50 is fully opened.

Next, the operation will be described with reference to FIG.
With the above configuration, the outer side plates 30, 30 can be removed at the time of demolding.
When the inner side plates 31 and 31 are opened interlockingly with each other, when the front end plate 50 is opened, the interlocking arm 52 rotates to interlock with the interlocking rod 110.
Moves backward, and if the opening of the front gable plate 50 progresses, the interlocking rod 110
Front edge 115a of slot 115 of rear clevis 114
Pushes the connecting shaft 64 of the rear end plate 60, and the rear end plate 65 retracts together with the support beam 120. The rear gable plate 60 is rotatably supported in the front and rear direction, and is pivotally attached to a rotatably supported rotatably supporting mechanism 66 (see FIG. 1) to prevent damage to relevant parts when the underdrain block is lifted when the mold is removed from the mold. .

If the outer side plates 30 and 30 are closed at the time of casting, the inner side plates 31 and 31 are interlocked and the front end plate 50 is closed.
And raise it to a predetermined position, the long hole 11 at the rear end of the interlocking rod 110
If the rear edge plate 115 of the rear part 5 pulls the connecting shaft 64 of the rear end plate 60 and the rear end plate 60 advances to a predetermined position, and the tightening mechanism 400 described later is tightened, the entire formwork is tightened in a short time. Even when the distance between the front and rear end plates 50 and 60 is slightly changed due to the pressing of the packing when tightening the form, the front and rear end plates 5
Since the clevis portion 114 of the interlocking rod 110 between 0 and 60 is provided with a free range (due to the elongated hole 115), the front and rear end plates are evenly tightened without any trouble.

4A and 4B are explanatory views of the interlocking mechanism of the outer side plate and the inner side plate, FIG. 4A is a plan view showing the structure of the interlocking mechanism 200, and FIG. motion)
FIG. Hereinafter, the interlocking mechanism 200 of the both side plates will be described in detail.

In the interlocking mechanism 200 shown in FIG. 4 (a), a drive shaft 33 parallel to the pivot shaft 30a is provided under the outer side plates 30 and 30 pivotally attached by a pivot shaft 30a (see FIGS. 1 and 2). The planted drive arm 34 is projected, and the pivot 3
A driven arm 36, in which a driven shaft 35 parallel to the pivot shaft 31a is planted, projects from the lower part of the inner side plates 31, 31 which are pivotally mounted by the lathe 1a, and the outer side plates 30, 30 are provided at one end of the drive link 210. A clevis portion 213 that can be connected to the drive shaft 33 of the drive arm 34 is provided, and the drive pin 210 is provided at the other end.
p is vertically protruded and planted, and the lower protrusion of the drive pin 210 is slidably inserted into a long groove 202 parallel to the drive link 210 formed in the base 201, and the drive link 210 is mounted on the base 201. Is inserted into and supported by a guide portion 211 provided on the inner side plate 31, 31 so that it can slide slightly vertically and slidably in parallel with the left-right direction. A clevis portion 253 connectable to the shaft 35 is provided, and a drive pin 250 is provided at the other end.
p is projected vertically and is planted, and the lower protruding portion of the drive pin 250p is slidably inserted into a long hole 204 parallel to the driven link 250 formed in the base 201, and the driven link 250 is attached to the base 201. In the guide part 251 provided above,
It is supported so that it can move slightly up and down and slidably parallel to the left and right direction.

Further, a long hole 231 is formed at one end so that the driving pin 210p can slide, and the driven pin 250 is provided at the other end.
A long hole 235 through which p can slide is formed, and a connecting link 230 that can swing about a pivot 233 provided near the middle point is provided. A long hole 231 at one end of the connecting link 230 is provided in the drive link 210. The driven pin 210p is inserted, the elongated hole 235 at the other end is inserted in the driven pin 250p of the driven link 250, and the clevis portion 213 at the other end of the drive link 210 is connected to the drive shaft 33. Link mechanisms 200A and 200B are provided in which the clevis portion 253 at the end is connected to the driven shaft 35 and the action directions of both links 210 and 250 can be smoothly changed in the same plane.
Two sets of interlocking mechanisms 200 symmetrically arranged on the rear side (upper side in the figure) and the front side (lower side in the figure) of the upper surface of the base 201 are provided on the left and right upper surfaces of the underframe 10, respectively.

FIG. 4B is an explanatory view of the operation of the interlocking mechanism 200. If the outer side plates 30, 30 are opened at the time of demolding, the drive link 210 is moved by the pushing motion of the drive shaft 33 of the outer side plates 30, 30. The driven link 250 that has been pushed in the direction of arrow A and whose acting direction has been changed through the connecting link 230 is pulled in the direction of arrow B, and the driven arms 36 of the inner side plates 31 and 31 connected to the driven link 250. Tow the inner side plate 3
When the outer side plates 30 and 30 are closed, the inner side plates 31 and 31 also work together to close.

In the embodiment of the interlocking mechanism 200,
Although the link mechanism that moves in the horizontal plane is configured, as another embodiment, the connecting link 230 is pivotally supported on a vertical surface and supported, and connecting holes are provided at the upper and lower ends of the connecting link. It is also possible to connect the connecting hole and the drive shaft 33 and the driven shaft 35 with a link to form a link mechanism that moves in a vertical plane.

FIG. 5 is a perspective view of another embodiment of the connecting portion of the interlocking mechanism 200. Only the outer side plates 30, 30 can be opened to the horizontal position during the maintenance or cleaning work of the mold, so that the drive link can be opened. 210 newly provided clevis portion 213
B is provided with a sliding groove 215 having a circular arc shape of 90 ° in a concentric circle with the pivot 30a of the outer side plate and directed upward inward.
5, an engaging hole 216 capable of always engaging with the drive shaft 33 of the drive arm 34 is opened in the sliding groove 215, and is supported so that the drive shaft 33 always stays in the engaging hole 216. Then, a cam 285 that can increase the diameter when the handle H is pressed down and presses the upper surface of the drive link 210 is fixed to the rotating shaft 281 provided with the handle H, and urges the handle H so that the pressing surface of the cam 285 always separates. A spring sp is provided and configured.

With the above structure, the outer side plates 30,
When the handle H is pushed down after releasing 30 to the fixed position, the cam 285 rotates to push the upper surface of the drive link 210, and the clevis portion 213B of the drive link 210 bends downward (to the position indicated by the chain double-dashed line) to drive the drive shaft 33. Corresponds to the position of the sliding groove 215, and the drive shaft 33 can slide in the sliding groove 215, so that only the outer side plates 30, 30 can be opened to the horizontal position without adversely affecting the inner side plates 31, 31. As a result, the above work becomes easy. Further, when the outer side plates 30, 30 are closed, the drive shaft 33 of the drive arm 34 slides downward and stays at the position where the drive shaft 33 is fitted into the engagement hole 216, and the interlocking mechanism 20.
0 returns to a normal state (the outer side plates 30 and 30 stop at a fixed position when the side plates are opened).

FIG. 6 is an exploded perspective view of a main part according to claim 2 of the present invention, FIG. 7 is an operation explanatory view of the main part according to claim 2 of the present invention, and FIG. FIG. 7B is an explanatory view showing a time when the lid hooking part inserter 325 is raised, and FIG. Hereinafter, with reference to both figures, a lid hooking part inserter 325 which is a main part according to claim 2
The elevating mechanism 300 will be described.

The elevating mechanism 300 includes the pivot 5 of the front end plate 50.
Drive arm 53 connectable to the lifting mechanism 300 on the lower side of 0a
And a bottom portion 20 having a space 25 formed therein is fixedly provided at a predetermined position on the upper portion of the underframe 10 by the supporting member 12, and a lid capable of sliding up and down by slidingly contacting the inside of the space 25 with the upper surface of the mounting member 324. The hook inserts 325 are fixedly provided, while the holes 15 and 15 are formed in the front and rear parts of the elevating base 13 spread on the underframe 10.
A guide member 360 having rigidity is provided on the lower side of the perforation holes 15 and 15 and fixed on the longitudinal line, and a support portion 310 fixed on the elevating base 13 is provided with connecting holes at the lower and upper ends. The lower end of the short link 330 is swingably attached, and the connecting hole at the upper end is pivotally attached to the connecting hole provided at the midpoint of the long link 340 which is twice the length of the short link 330. The sliding frame 321 of the sliding member 320 provided with the sliding frame 321 for preventing floating is provided slidably on the guide member 360, and the upper surface of the elevating base 13 is connected. The lower ends of the long links 340 are pivotally attached to both ends of the upper surface of the sliding member 320 protruding to
320 are connected by a connecting link 350, and the front end plate 5 is connected.
No. 0 drive arm 53 and the sliding member 320 are connected by a connecting rod 301 provided with a known turnbuckle t, and the upper end of the long link 340 is connected to the mounting member 324 by a connecting shaft 342.
It is configured by connecting to. A roller 322 for smoothing the sliding action may be provided below the sliding frame 321. A chain double-dashed line on the upper surface of the connecting link 350 indicates the interlocking mechanism 2 described above.
00 is a base 201.

If the elevating mechanism 300 is constructed as described above, the connecting rod 30 is driven by the drive arm 53 of the front end plate 50 at the time of driving shown in FIG. 7A, that is, when the front end plate 50 is closed.
1 is pulled and the sliding member 320 moves forward, and the short link 33
Long link 340 centered on 0 is short link 3 at the top
The lid hook portion insert 325 connected to the shaft support 30 rises on the vertical line and slides in the space 25 so as to rise, so that the lid hook insert 325 is projected onto the bottom surface portion 20. Symbol p in the figure
Is a positioning pin p corresponding to the positioning holes h provided in the front end plate 50, the rear positioning frame body 65, both side plates and the core.

Further, when the mold is removed from the mold as shown in FIG. 7B, that is, when the front end plate 50 is opened, the connecting rod 301 is pushed by the drive arm 53 of the front end plate 50 and the sliding member 320 is retracted,
Short link 330 Long link 340 centered on the upper end
The upper end descends on the vertical line of the short link 330 shaft support, and the connected lid hook insert 325 slides in the space at the same time to descend, and the bottom part 20 becomes flat, so that the underdrain block is slightly lifted. If this is done, it is easy to remove the mold (it can be pulled out). Since the sliding frame 321 is externally fitted to the rigid guide member 360, the sliding member 320
Is prevented, and the rigidity of the link system is increased,
The lid hooking insert 325 and the placed concrete surface can be easily separated to save labor and time in the demolding process.

FIG. 8 is a perspective view of a tightening mechanism according to a third aspect of the present invention. In the tightening mechanism 400, the front and rear portions of a screw rod 410 provided with a rotating head 411 at either of the front and rear ends are threaded in opposite phases. Part 4
10L (left screw part), 410R (right screw part) are engraved,
A horizontally long tightening nut 400NL is screwed into the front threaded portion 410L, and the limiting rod 43 is provided on the contact surface side of the tightening nut 400NL.
0 is projected in parallel with the screw shaft, and a tightening nut 400NR having a shaft portion 440 projecting at both left and right ends is screwed into the rear threaded portion 410R to form a connected torii-shaped base portion on the rear side of the rear end plate 60. Is provided with a positioning frame body 65 pivotally pivotally attached to the upper portion of the drawing (at the time of tightening is shown in the upper part of the drawing), the shaft portion 440 is pivotally mounted in the vicinity of the upper center of the positioning frame body 65, and the screw rod 410 is attached to the front portion. A 90 ° arc-shaped restricting groove 43, which is rotatably supported by the rear supporting members 420 and 425 and is slidable and swingable by the restricting rod 430, is provided on the front end surface of the front supporting member 420. The restriction rod 430 is inserted into the shaft 43 so that it can be engaged at all times, and the front end plate 50 is formed with an insertion hole 55 through which the tightening nut 400NL can slip out at a horizontal position. A known positioning pin p is provided on the front surface of the positioning frame body 65 so as to project from the insertion hole h1 of the rear end plate when tightening (when the screw rod 410 rotates clockwise).

If the tightening mechanism 400 is constructed as described above, the restriction rod 430 is restricted by rotating the rotary head 411 to the left (to the right when it is from the rear) when the mold is opened (when the mold is released). The horizontally long tightening nut 400NL inserted into the groove 43 loosens as the rotation progresses while relaxing the pressing of the front end plate 50, and rotates to the left when there is no friction with the upper and lower parts of the tightening hole 55 that has been pressed. At the beginning, the restriction rod 43 slides 90 ° in the restriction groove 430, the tightening nut 400NL becomes horizontal, and the front end plate 50 can be opened to slip through the tightening hole 55. The tightening nut 400NR pivotally attached to the attachment frame body 65 retracts (arrow L1) to move the positioning frame body 6
5 also swings backward (arrow L2), the positioning pin p projecting from the positioning frame body 65 comes off, and both side plates 30, 30, 31, 31 provided with positioning holes h and the rear portion of the core 40. When the positioning is released and the front end plate 50 is opened (the rear end plate 60
Moves backward), the front gable plate 50 and both side plates 30, 30, 3
The positioning of the cores 1, 31 and the front part of the core 40 is released, and the core 40 can be reduced and the side plates 30, 30, 31, 31 can be opened.

If the front end plate 50 is raised at the time of driving, the tightening hole 55 of the front end plate 50 is in the horizontal state and the tightening nut 400NL.
Slips through (the rear end plate 60 moves forward at the same time), and then the turning head 411 of the screw rod 410 is rotated to the right (to the left when rotating from the rear) to rotate the tightening nut 400NL to the right. , Rotating to the vertical position indicated by the chain line R and starting to tighten the upper and lower portions of the tightening means hole 55, and positioning holes h formed in the front end plate 50, the outer side plates 30, 30 and the inner side plates 31, 3
1 and the positioning pin p projectingly provided on the front part of the core 40, the tightening nut 400NR screwed on the rear part of the screw rod 410 advances, and the shaft part 440 of the tightening nut 400NR is pivotally attached. The frame body 65 swings forward, and the positioning pin p planted on the front surface of the tightening frame body 65 causes the insertion hole h of the rear end plate 60 to pass through.
1, the outer side plates 30, 30 and the inner side plates 31,
Fitting into the positioning holes h provided in the rear part of 31 and the rear part of the core 40, and further, if the right rotation of the screw rod 410 progresses, the entire formwork is firmly tightened to withstand strong vibration compaction at the time of placing. To be done. Therefore, the entire mold can be opened and tightened in a short time from the front part or the rear part of the mold by a simple turning operation by an automatic machine on the production line.

[0044]

According to the formwork for producing an underdrain block according to the first aspect of the present invention, if the front end plate 50 is opened at the time of demolding, the rear end plate 60 is retracted while standing upright, and then the outer side plate after the core is reduced. 30,
When opening 30, the inner side plates 31 and 31 are simultaneously opened in an interlocking manner, and by slightly lifting the underdrain block, it is possible to remove the mold forward in a short time while leaving the reduced core on the mold. Further, at the time of placing, if the outer side plates 30 and 30 are closed after the core 40 is widened, the inner side plates 31 and 31 are interlockingly closed, and if the front end plate 50 is raised, the rear end plate 60 advances and the form is tightened. It can be set immediately. It is possible to build two underdrain blocks by one-time placement, and the complicated opening / closing of the inner side plates 31, 31 is also opened / closed in conjunction with the opening / closing of the left and right outer side plates 30, 30.
The manufacturing process can be labor-saving and the time can be shortened, and the existing formwork opening and closing machine that automatically opens and closes the left and right side plates for the single take-up formwork of the production line can be used as it is.

In the formwork for manufacturing an underdrain block according to claim 2, if the front end plate 50 is opened at the time of demolding, the rear end plate 60 is retracted while standing upright, and the elevating mechanism 300 is operated to insert the lid hook portion. When the outer side plates 30 and 30 are opened after the core is contracted, the inner side plates 31 and 31 are also interlocked with each other and the bottom part 20 is slightly lifted. Even if there is an uneven pattern on the top, it can be easily removed from the front. Further, when the outer side plates 30 and 30 are closed after the core is widened at the time of driving, the inner side plates 31 and 3 are
1 is interlockingly closed, and if the front gable plate 50 is raised, the rear gable plate 6
As 0 moves forward, the lid hooking insert 325 projects into the space 25 of the bottom surface 20 and can be immediately placed, which saves labor in the manufacturing process and shortens the time.

The formwork for producing an underdrain block according to claim 3 is provided with a screw rod 41 from the front part (or the rear part side) of the formwork at the time of demolding.
When 0 is rotated to the left (to the right in the case of the rear side), the tightening of the front end plate 50 is released, and when the left rotation is further advanced, the tightening nut 400NL is surely rotated to the left by 90 °, Wife board 5
0 can be opened, and if the front end plate 50 is opened, the known positioning pins between the front end plate 50, the core 40 and the outer side plates 30, 30, and the inner side plates 31, 31 are removed, and at the same time, the rear end plate 60 is removed. The positioning frame body 66, which moves backwards in conjunction with each other and has the positioning pins implanted therein, swings to the rear side of the rear end plate 60 and the positioning pin comes off, and the rear end plate 60, the core 40, the outer side plates 30, 30, the inner side plate 31. , 31 is opened, and the outer side plates 30, 30 are opened, the mold can be immediately removed.

Further, if the front end plate 50 is closed at the time of driving, known positioning pins between the front end plate 50 and the core 40 and both side plates 30, 31 are fitted, and at the same time, the rear end plate 60 is interlocked. If you move forward and rotate the screw rod 410 clockwise, the tightening nut 4
00NL surely rotates 90 ° to the right to press the front end plate 50 and at the same time the rear end plate 60, the core 40 and the outer side plate 3
Positioning between 0, 30 and the inner side plates 31, 31 is also fitted, the front and rear end plates 50, 60 are evenly tightened, and the entire formwork is firmly tightened only by a simple turning operation, which saves labor in the manufacturing process. And time can be saved.

[Brief description of drawings]

FIG. 1 is a perspective view of a formwork for producing an underdrain block of the present invention.

FIG. 2 is a partially sectional front view of a formwork for producing an underdrain block of the present invention.

FIG. 3 is an explanatory view of a front and rear end plate interlocking mechanism of the present invention.

FIG. 4 is an explanatory view of an interlocking mechanism of outer and inner side plates of the present invention.

FIG. 5 is a perspective view of another embodiment of the connecting portion of the outer side plate of the present invention.

FIG. 6 is an exploded perspective view of a main part according to claim 2 of the present invention.

FIG. 7 is an operation explanatory view of a main part according to claim 2 of the present invention.

FIG. 8 is a perspective view of a tightening mechanism according to claim 3 of the present invention.

FIG. 9 is a perspective view of an underdrain block made according to the present invention.

FIG. 10 is a perspective view of a prior art underdrain block manufacturing formwork.

[Explanation of symbols]

 10-Underframe 20-Bottom part 25-Space part (provided on the bottom part) 30,30-Outer side plate 31,31-Inner side plate 40-Core 50-Front end plate 55-Tightening hole 60-Rear end plate 65 -Positioning frame body 66-Rotating mechanism (for rear gable plate) 100-Interlocking mechanism (for front and rear gable plates) 110-Interlocking rod (for front and rear gable plates) 115-Slot (for interlocking means) 120-Support beam (core 40) No.) 200-Interlocking mechanism (on both side plates) 210-Drive link 230-Connecting link 250-Following link 300-Elevating mechanism (with the lid hooking part) 310-Connecting rod (of the elevating mechanism) 320-Sliding member 325 ─ Lid hook insert 330 ─ Short link 340 ─ Long link 360 ─ Guide member 400 ─ Tightening mechanism 400 NL ─ Tightening nut (front part) 400NR ─ Tightening nut (rear part) 410 ─ Screw rod 410L ─ Front threading Part (left screw 410R─ rear threaded portion (right screw)

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location B28B 21/88 B28B 21/88 E03F 3/04 E03F 3/04 A

Claims (3)

[Claims] 1. An underdrain block manufacturing form having a bottom part spread on an underframe and provided with openable and closable back and forth girder plates, side plates and a core that can be expanded and contracted, and a front gable plate 50 at the front part of the underframe 10. Is pivoted so as to be openable and closable, and a rear end plate 60 is erected on the rear portion of the underframe 10 so as to be capable of moving back and forth and tilted rearward, and two cores 40, 40 are provided from the rear end plate 60 or the rear end plate side. Two support beams 120 that are loosely fitted and carried are projected forward in the horizontal direction, an interlocking arm 52 is projected below the front end plate 50, and a floating range is provided between the interlocking arm 52 and the rear end plate 60. Two sets of outer side plates 3 are connected to the underframe 10 via the interlocking mechanism 100 provided.
0 and 30 and the inner side plates 31 and 31 are pivotally attached so as to be openable and closable, and the outer side plates 30 and 3 are provided between the outer side plate 30 and the inner side plate 31, respectively.
Connected by interlocking mechanism 200 including a link mechanism that converts push-pull / pull movements associated with opening / closing of 0 into reverse movements.
Formwork for underdrain block manufacturing characterized by 2. A space portion 25 having an arbitrary shape is formed at the front and rear ends or the central portion of the bottom surface portion 20, and a drive arm 53 is provided at the lower portion of the front end plate 50 so as to rotate the drive arm 53. A lifting mechanism 300 composed of a link mechanism for converting into a vertical motion is connected, and a lid hooking part inserter 325 that can be sealed and lifted in the space 25 is connected to the upper part of the lifting mechanism 300. A formwork for producing an underdrain block according to claim 1. 3. A screw rod 410L having a rotating head portion 411 provided at either of the front and rear end portions is provided on the front and rear portions of the screw rod 410L having opposite phases, respectively.
410 R is threaded, and a horizontally elongated tightening nut 4 is provided with a restriction rod 430 projecting parallel to the screw axis on the tightening surface side of the front threaded part 410 L.
00NL is screwed in, and a tightening nut 400NR in which a shaft portion 440 is projectingly provided on both left and right ends of a rear threaded portion 410R is screwed in, and the shaft portion 440 is pivotally mounted by pivoting the base portion to the lower rear portion of the rear end plate 60. 90 [deg.] Arc-shaped restriction in which the screw rod 410 is rotatably supported by front and rear support members 420, 425, and the restriction rod 430 is slidable and swingable. The formwork for producing an underdrain block according to any one of claims 1 and 2, wherein a tightening mechanism 400 including a groove 43 provided on a front end surface of the front support member 420 is provided inside.