JP2512696B2 - Forming equipment for molding concrete products - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mold device for molding concrete products, and more particularly to a device for molding concrete products such as L-shaped retaining walls, box culverts, manholes and U-shaped structures.

[0002]

2. Description of the Related Art Conventionally, as a mold device for molding concrete products of this type, for example, as described in Japanese Utility Model Publication No. 3-93105, a back frame is erected on a base,
A front frame is provided so as to be movable back and forth with respect to this rear frame, a front molding plate is attached to this front frame, and a bottom plate is integrally provided at the lower end of the back frame so as to project toward the front molding plate. There is known a structure in which an auxiliary frame having a different height for end face molding is selected and placed for each concrete product having a different height to be molded by the front molding plate.

[0003]

In the structure described in the above publication, it is necessary to mount an auxiliary frame having a height corresponding to the concrete product on the bottom plate of the rear frame every time a concrete product having a different height is molded. Therefore, it is necessary to always have a plurality of auxiliary frames with different heights, which is often inconvenient from the viewpoint of management.Each time a concrete product with a different height is formed on the bottom plate of the rear frame, There is a problem in that it takes time to replace and install the selected auxiliary frame, and each time it takes time to match the auxiliary frame with the front molding plate, which is uneconomical in terms of production cost.

The present invention has been made in view of the above points, and it is possible to adjust the set position of the outer mold body up and down and interlock the bottom mold body each time a concrete product having a different height is molded. Even if various concrete products with different heights are molded with this outer mold, the end face of the concrete product can be molded with a common bottom mold. Therefore, different heights for end face molding can be obtained. It is not necessary to always have attachments such as multiple auxiliary frames, and its management is easy, and the number of steps to select and set the bottom mold according to the concrete product to be molded and the number of steps to match the mold are not required, and the production cost is improved. It is therefore an object of the present invention to provide a concrete product molding form device that is economical and can easily mold concrete products having different heights.

[0005]

According to a first aspect of the present invention, there is provided a mold device for molding a concrete product, which includes a middle mold body having a molding surface for molding one side wall surface of the concrete product, and the middle mold body. An outer mold having a molding surface for molding the other side wall surface of the concrete product, and a bottom mold having a molding surface for molding the end surface of the concrete product,
The outer mold body is provided so as to be movable back and forth with respect to the middle mold body and the position thereof can be adjusted in the vertical direction, and the bottom mold body is provided on the outer mold body.

The concrete product forming frame device according to a second aspect is the concrete product forming frame device according to the first aspect, in which the bottom mold body is moved upward during mold matching with the middle mold body and moved downward during mold release. It is supported by an outer mold body so as to be vertically movable by a link mechanism.

The concrete product molding form device according to claim 3 is the concrete product molding form device according to claim 1 or 2, wherein the outer mold body has a decorative pattern on the other side wall surface of the concrete product. The decorative mold body has a pattern molding surface to be molded.

The concrete product forming frame apparatus according to claim 4 is the concrete product forming frame apparatus according to claim 2, wherein the bottom mold has a pattern forming surface for forming a decorative pattern on the end surface of the concrete product. It is a thing.

[0009]

In the concrete product forming mold apparatus according to claim 1, when the outer mold body is advanced toward the middle mold body, the tip of the bottom mold body provided on the outer mold body has a molding surface of the middle mold body. Abutted against. Then, by clamping the mold, a space for molding a concrete product is formed on the molding surface of the middle mold body, the molding surface of the outer mold body, and the molding surface of the bottom mold body.

Further, the outer mold body is vertically adjusted in accordance with the height of the concrete product to be molded, and the bottom mold body is vertically adjusted in conjunction with the vertical movement adjustment of the outer mold body,
Therefore, while the outer mold body is positioned, the bottom mold body is automatically set to the position for molding the end surface of the concrete product.

Then, by clamping the mold, the molding surface of the outer mold body, which is vertically adjusted with respect to the molding surface of the middle mold body, and the bottom mold, which is adjusted in the vertical direction in conjunction with this outer mold body. A space for molding a concrete product having a desired height is formed on the molding surface of the body.

According to the second aspect of the present invention, there is provided a mold device for molding a concrete product, wherein the front end of the bottom mold body provided on the outer mold body is brought into contact with the molding surface of the middle mold body, and The bottom mold body is pushed toward the outer mold body, and the bottom mold body is moved upward by the ascending rotation of the link mechanism, the bottom mold body is moved to a predetermined height position, and The molding surface, the molding surface of the outer mold body and the molding surface of the bottom mold body are matched.

Further, by retracting the outer mold body in the direction away from the molding surface of the middle mold body, the link mechanism is lowered and rotated by this outer mold body, and the bottom mold body is also rotated by this link mechanism. Is moved downward, and the bottom mold is released from the end surface of the concrete product.

In the concrete product molding frame device according to the third aspect, the decorative pattern is molded on the other side wall surface of the concrete product by the pattern molding surface of the decorative mold body provided on the outer mold body.

According to the fourth aspect of the present invention, there is provided a mold device for molding a concrete product, in which a decorative pattern is molded on the end face of the concrete product on the pattern molding surface of the bottom mold.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT The structure of an embodiment of the present invention will be described below with reference to the drawings.

In the first embodiment shown in FIGS. 1 to 5,
A mount 1 is provided with a medium-sized body 2 on the mount 1. The middle mold body 2 has a middle frame body 3 arranged and supported on the pedestal 1, and a molding surface 4 for molding one side wall surface of a concrete product is provided on one side of the middle frame body 3 in the front-rear direction. It is formed integrally.

The molding surface 4 is a vertical portion 5 which is vertically formed upward from one end of the gantry 1, and is inclined from the upper end of the vertical portion 5 toward the outside to be curved in a series. The inclined portion 6 formed, the horizontal portion 7 formed horizontally in a series from the outer end portion of the inclined portion 6 outward, and the outer end portion of the horizontal portion 7 upward. It has a protruding portion 8 protruding vertically.

Next, a plurality of guide rails 9 in the front-rear direction are formed in parallel with each other in the left-right direction of the gantry 1 at the lower end of the vertical portion 5 of the molding surface 4. Horizontally arranged guides 10 which are long in the front-rear direction are slidably engaged with each other in the front-rear direction in the direction of advancing and retreating with respect to the middle-sized body 2. Also,
Brackets 11 are vertically formed integrally on the outer ends of the guides 10, and an outer die body 12 vertically arranged is integrally fixed to and supported by the brackets 11. .

The outer die main body 12 comprises a main body plate 13 arranged vertically and a lattice-shaped reinforcing frame body 14 which is located outside the main body plate 13 and integrally fixed thereto. A large number of mounting holes 15 are formed in the plate 13 at predetermined intervals in the front-rear direction and the left-right direction so as to penetrate in the front-rear direction.

Further, an outer mold body 16 arranged vertically is attached to the main body plate 13 of the outer mold body 12 so that the position of the outer mold body 16 can be adjusted in the vertical direction. The outer mold body 16 has a vertical portion 17 provided along the main body plate 13 and a horizontal portion 18 horizontally and integrally projecting toward the middle mold body 2 at a lower end portion of the vertical portion 17. Then, the vertical portion 17 is integrally formed with a molding surface 19 located on the side of the middle mold 2 for molding the other side wall surface of the concrete product.

Further, on the outer side of the vertical portion 17 of the outer mold body 16, a large number of holes are formed in the main body plate 13 of the outer mold body 12 at predetermined intervals in the front-rear direction and the left-right direction. Mounting hole 15
A plurality of embedding nuts 20 communicating with a plurality of mounting holes 15 at selected positions in are embedded and fixed integrally.

The outer mold body 16 is disposed on the main body plate 13 of the outer mold body 12 so as to be vertically adjustable in position,
At the set position of the outer mold body 16, with respect to the respective embedded nuts 20 of the vertical portion 17 of the outer mold body 16, a plurality of mounting holes at predetermined positions of the main body plate 13 communicating with the respective embedded nuts 20. The outer mold body 16 is integrally supported by the main body plate 13 of the outer mold body 12 by detachably screwing a plurality of bolts 21 from 15 respectively.

Next, on the upper part of the horizontal portion 18 of the outer mold body 16, a molding surface 23 for molding the end surface of the concrete product through a plurality of link mechanisms 22 arranged at intervals in the left-right direction. A bottom mold 24 having a is supported so as to be vertically movable.

In each of the link mechanisms 22, a pair of supporting pieces 25, which are spaced apart from each other at the front and rear portions of the horizontal portion 18, are integrally erected upward, and a pair of front supporting portions are provided. The piece 25 is short in the vertical direction, and the pair of support pieces 25 at the rear part is formed long in the vertical direction. In addition, the front and rear pair of support pieces 25 and the rear pair of support pieces 25 each have a left and right support shaft.
26 are respectively mounted on the shafts, and the lower ends of the link pieces 27 are respectively supported on the front and rear support shafts 26 so as to be vertically rotatable.

Further, a pair of mounting pieces 28, which are spaced apart from each other in the front and rear parts, are integrally provided on the lower portion of the bottom mold 24 so as to project downward. 28 is long in the vertical direction, and the pair of mounting pieces 28 on the rear part are formed to be short in the vertical direction. In addition, the front pair of mounting pieces 28
Also, a support shaft 29 in the left-right direction is provided above the pair of mounting pieces 28 on each rear part.
Are each mounted. Further, the upper ends of the front link pieces 27 are rotatably supported in the vertical direction on the support shafts 29 of the front pair of mounting pieces 28, respectively, and the rear pair of mounting pieces are mounted. An upper end portion of each of the rear link pieces 27 is pivotally supported on the support shaft 29 of the piece 28 in a vertically rotatable manner.

When the bottom mold body 24 is moved downward by the downward rotation of each of the link mechanisms 22, the lower end portions of the pair of front mounting pieces 28 of the bottom mold body 24 are attached to the outer mold body 16. Of the bottom die body 24 are abutted and supported on the horizontal portions 18 of the horizontal die portion 18, and the bottom lower surfaces of the bottom die bodies 24 are abutted and supported on the upper end portions of the pair of rear support pieces 25 of the horizontal die portion 18, respectively. The inner end of the body 24 is projected from the inner end of the horizontal portion 18 of the outer mold body 16 toward the middle mold body 2 side.

Next, the left and right end plate members 31 are pivotally supported at the left and right ends of the middle frame body 3 via the hinge mechanism 30 so as to be freely opened and closed in the left and right directions.
The molding surface 4 of the middle mold body 2, the molding surface 19 of the outer mold body 16 and the molding surface 23 of the bottom mold body 24 form a cavity.

Next, the operation of the above embodiment will be described.

At the time of die matching, when the outer die body 12 is pushed toward the middle die body 2, the guides 10 supporting the outer die body 12 are guided by the respective guide rails 9 of the gantry 1 toward the gantry 1. It is pushed in and this outer mold body
The outer mold body 16 attached to 12 is advanced toward the middle mold body 2,
The tip of the bottom mold body 24 provided on the outer mold body 16 is brought into contact with the lower portion of the vertical portion 5 of the molding surface 4 of the middle mold body 2.

When the outer mold body 16 is further advanced toward the middle mold body 2, the tip of the bottom mold body 24 is directed toward the outer mold body 16 at the vertical portion 5 of the molding surface 4 of the middle mold body 2. When pushed, the bottom mold body 24 is moved upward by the upward rotation of each link mechanism 22, the bottom mold body 24 is moved to a predetermined height position, and the rear end portion of the bottom mold body 24 is moved. Is brought into contact with the lower portion of the molding surface 19 of the outer mold body 16.

Then, the bottom mold body 24 is supported upward by the link mechanism 22 which is lifted and rotated on the horizontal part 18 of the outer mold body 16, and the molding surface 4 of the middle mold body 2 is vertically supported. By sandwiching the bottom mold body 24 between the part 5 and the molding surface 19 of the outer mold body 16, the molding surface 4 of the middle mold body 2, the molding surface 19 of the outer mold body 16 and the molding surface of the bottom mold body 24. 23 are matched.

Further, by closing and rotating the left and right end plate bodies 31 of the middle mold body 2, the left and right end plate plates 31 are joined together at the left and right ends of the molding surface 4 of the middle mold body 2 and the outer mold body.
The left and right ends of the 16 molding surfaces 19 and the left and right ends of the molding surface 23 of the bottom mold body 24 are matched with each other.

Then, by clamping the mold, the middle-sized body 2
Molding surface 4 of the outer mold body 16, molding surface 23 of the bottom mold body 24
A cavity for molding a concrete product is formed by the left and right end plate bodies 31. Then, a concrete product having a cavity shape is molded by sufficiently placing concrete in the cavity and curing it for a required time.

Next, at the time of mold release, the molding surface 4 of the middle-sized body 2
Outer mold body having an outer mold body 16 in a direction away from the
By retracting 12, the molding surface 19 of this outer mold body 16 is released from the other side wall surface of the concrete product,
Each link mechanism 22 is rotated downward by the horizontal portion 18 of the outer mold body 16, and the bottom mold body 24 is moved downward by each link mechanism 22.
The molding surface 23 of the bottom mold 24 is released from the end surface of the concrete product.

Then, by lifting the concrete product, the molding surface 4 of the middle-sized body 2 is released from one side wall surface of the concrete product, and the concrete product is obtained.

Next, when molding concrete products having different heights, the outer mold body 16 is vertically adjusted in accordance with the height, and the bottom mold body 24 is moved vertically. As the outer mold body 16 is positioned, the bottom mold body 24 is automatically set to the position where the end face of the concrete product is molded, while the outer mold body 16 is positioned.

That is, the outer mold body 16 is arranged by adjusting its position in the vertical direction with respect to the body plate 13 of the outer mold body 12 according to the height of the concrete product for molding the outer mold body 16. In each of the embedded nuts 20 of the vertical portion 17 of the outer mold body 16,
In contrast, the plurality of bolts 21 from the plurality of mounting holes 15 at predetermined positions of the body plate 13 of the outer die body 12 communicating with the respective embedded nuts 20.
By inserting and screwing each
An outer mold body (16) is integrally supported by twelve main body plates (13) at a position corresponding to the height of a concrete product to be molded.

When the position of the outer mold body 16 is adjusted in the vertical direction, the bottom mold body 24 provided on the horizontal portion 18 of the outer mold body 16 via each link mechanism 22 is the same as the outer mold body 16. The position is adjusted in the vertical direction, and the outer mold body 16 is set and supported at a predetermined position, and the bottom mold body 24 is similarly set and supported. Therefore, the outer mold body 16 and the bottom mold body 24 are automatically variably set in the vertical position according to the height of the concrete product to be molded.

Then, as in the case described above, the molds are aligned and the molds are clamped to form the molding surface 19 of the outer mold body 16 which is vertically adjusted with respect to the molding surface 4 of the middle mold body 2, A cavity for molding a concrete product having a desired height is formed by the molding surface 23 of the bottom mold body 24 and the left and right end plate bodies 31 which are adjusted and set in the vertical direction in conjunction with the outer mold body 16.

Next, a second embodiment shown in FIGS. 6 to 8 will be described.

The second embodiment relates to another embodiment of the link mechanism 22 in which the bottom mold body 24 of the first embodiment is supported so as to be vertically movable. That is, the link mechanism 22 according to the second embodiment includes a plurality of horizontally-integrated protrusions at the lower end of the vertical portion 17 of the outer mold body 16 at predetermined intervals in the left-right direction toward the middle mold body 2. Each of the supports 35 has a support 35.
A pair of support projections 36 are integrally and horizontally projected toward the middle-sized body 2 at the front end of the pair of support projections 36.
A left and right support shaft 37 is horizontally mounted on 36.

Further, an intermediate portion of a pushing rod 38 formed in a substantially rod shape on each of the support shafts 37, which is located between the support projections 36, is vertically rotatably mounted on each of the support shafts 38. A support portion 39 for pushing and supporting the lower portion of the bottom die body 24 near the inside is formed in an arc shape at the upper end portion of the pusher support body 38, and a medium-sized body is provided at the lower end portion of each pusher support body 38. Passive part 40 pushed by the molding surface 4 of 2
Is formed in an arc shape.

Further, vertical guide grooves 41 are formed at the lower end of the vertical portion 17 at both lateral sides of the base end of each of the supports 35. 35
In the guide grooves 41 on both sides, the lower ends of a pair of supporting legs 42 are pivotally supported in the vertical direction by fixed supporting shafts 43 in the lateral direction.

In addition, a bottom mold is provided at the upper end of each supporting leg 42.
The lower part of the rear end of 24 is integrally fixed. Further, at the time of mold matching, the bottom mold body 24 is supported substantially horizontally by the supporting legs 42 and the supporting portions 39 at the upper ends of the pushing support bodies 38. Since the other configurations are similar to those of the first embodiment, the description of those configurations will be omitted.

With this structure, when the passive portion 40 at the lower end of each pushing support body 38 is pushed by the molding surface 4 of the middle-sized body 2 during die matching, each pushing support body 38 is pushed. Is rotated about the support shaft 37, and the bottom mold 24 is pushed upward by the support portion 39 at the upper end of each push support 38, and the bottom mold 24 is supported by each support leg. It is rotated upward via a fixed support shaft 43 via 42.

The bottom mold body 24 is supported in a substantially horizontal manner by the supporting legs 42 and the supporting portions 39 at the upper end portions of the pushing support bodies 38, and the tip end portion of the bottom mold body 24 is of a medium size. The outer surface of the bottom mold body 24 is fitted to the molding surface 4 of the body 2 and the outer mold body
The 16 molding surfaces 19 are matched.

When the mold is released, the outer mold body 12 is used by the outer mold body 12.
When the mold is retreated, the forming surface 19 is released from the other side wall surface of the concrete product, the bottom mold 24 is moved downward, and the forming surface 23 is released from the end surface of the concrete product.

Next, a third embodiment shown in FIGS. 9 and 10 will be described.

In the third embodiment, a decorative mold body 45 having a pattern molding surface 44 for molding a decorative pattern on the other side wall surface of the concrete product is detachably attached to the outer mold body 16. In this case, the decorative mold body 45 is detachably connected to the outer mold body 16, and a plurality of embedding nuts 20 are embedded in the outer mold body 16 in the mounting holes 15 of the outer mold body 12. Bolts 21 are detachably screwed to the embedded nuts 20 from the mounting holes 15 at the predetermined positions.

Since the other structures are the same as those of the first embodiment, the description of those structures will be omitted.

With this structure, the makeup-type body
A decorative pattern is formed on the other side wall surface of the concrete product by the pattern forming surface 44 of 45. Further, by adjusting the outer mold body 16 and the decorative mold body 45 with respect to the outer mold body 12 in the vertical movement according to the height of the concrete product to be molded, and supporting the set position with a plurality of bolts 21. , A concrete product having a desired height with a decorative pattern can be molded.

In the present embodiment, the decorative body 45 can be adjusted upwardly with respect to the outer mold body 12 without using a plurality of bolts 21 and a plurality of embedded nuts 20 screwing the bolts 21. It may be attached and supported.

Next, a fourth embodiment shown in FIG. 11 will be described.

In the fourth embodiment, the vertical portion 17 of the outer mold body 16 is used.
The bottom mold 24 is integrally and substantially horizontally formed at the lower end of the mold toward the middle mold 2. In this case, the bottom mold 24
The molding surface 23 is formed so as to have a draft angle with respect to the molding surface 19 of the vertical portion 17 that is downwardly inclined toward the middle mold body 2 at a predetermined inclination angle α.

Since the other structures are the same as those of the first embodiment, the description of those structures will be omitted.

With this structure, the bottom mold 24
Although the end surface of the concrete product is molded on the molding surface 23 of, the bottom mold body 24 itself is not moved downward at the time of mold release with the draft of the predetermined inclination angle α of the molding surface 23 of the bottom mold body 24. It can be easily released.

Also in this embodiment, the bottom mold body integrated with the outer mold body 16 is adjusted by vertically adjusting the outer mold body 16.
24 is adjusted up and down at the same time.

Further, in the first to fourth embodiments, the molding surface 19 of the vertical portion 17 of the outer mold body 16 is formed as a pattern molding surface for molding a decorative pattern on the other side wall surface of the concrete product. You may In addition, in the first to third embodiments, the molding surface 23 of the bottom mold body 24 supported by the outer mold body 16 so as to be vertically movable is formed as a pattern molding surface for molding a decorative pattern on the end surface of the concrete product. That is, the bottom mold 24 itself may be a vertically movable decorative mold having a pattern molding surface.

In each of the above embodiments, the bottom mold 24 is provided on the outer mold 16, but the present invention is not limited to this, and the bottom mold 24 may be located in the left and right end plate 31 depending on the concrete product to be molded. It may be attached to the lower end of the end plate 31 on at least one side.

In this case, as in the fourth embodiment,
A bottom mold body 24 having a molding surface 23 having a draft angle of a predetermined inclination angle α may be integrally formed with the end plate body 31 as an outer mold body. A plurality of link mechanisms as in the first to third embodiments
A bottom mold 24 may be provided via 22 so as to be vertically movable.

Therefore, in the present specification, the outer mold body 16
Is not limited to the molding surface 4 of the medium-sized body 2 and the medium-sized body 2
The end plate portion 31 of the molding surface 4 of FIG.

[0063]

According to the first aspect of the present invention, the outer mold body for molding the other side wall surface of the concrete product is movably and vertically positioned with respect to the middle mold body for molding one side wall surface of the concrete product. Since the outer mold body is provided with a bottom mold body for molding the end face of the concrete product, the outer mold body is adjusted up and down every time a concrete product having a different height is molded, and at the same time, the bottom position is adjusted. The molds can be reliably interlocked, and even if various concrete products of different heights are molded with this outer mold, the end face of the concrete product can be molded with a common bottom mold. Therefore, it is not necessary to always have attachments such as multiple auxiliary frames with different heights for end face forming, and its management is easy, and the number and type of steps to select and install the bottom mold according to the concrete product to be molded are required. Sesuru without requiring troublesome, a production cost economic and therefore, it is possible to provide a mold device for concrete products molding can be easily molded heights of different concrete products with a simple configuration.

According to the second aspect of the invention, since the bottom mold body is provided on the outer mold body through the link mechanism so as to be vertically movable, the bottom mold body can be easily aligned and released.

According to the third aspect of the invention, since the outer mold body has the pattern forming surface, a desired decorative pattern can be surely formed on the other side wall surface of the concrete product by this pattern forming surface.

According to the fourth aspect of the present invention, since the bottom mold body has the pattern forming surface, a desired decorative pattern can be surely formed on the end surface of the concrete product by the pattern forming surface.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view of a concrete product forming form device showing an embodiment of the present invention.

FIG. 2 is a perspective view showing a link mechanism in which a part of the upper bottom mold body is cut away.

FIG. 3 is a sectional view of the outer mold body of the above.

FIG. 4 is an explanatory side view showing the same mold opening state.

FIG. 5 is an explanatory side view showing the same mold matching state.

FIG. 6 is a perspective view showing a link mechanism in which a part of a bottom mold body is cut away according to another embodiment.

FIG. 7 is an explanatory side view showing the mold open state.

FIG. 8 is an explanatory side view showing the same mold matching state.

FIG. 9 is an explanatory side view showing still another embodiment.

FIG. 10 is a sectional view of the same.

FIG. 11 is an explanatory side view showing still another embodiment.

[Explanation of symbols]

 2 Medium size body 4 Molding surface 16 Outer mold body 19 Molding surface 22 Link mechanism 23 Molding surface 24 Bottom mold body 44 Pattern molding surface 45 Decorative mold body

Claims (4)

(57) [Claims] 1. A middle mold body having a molding surface for molding one side wall surface of a concrete product, and an outer mold body having a molding surface arranged to face the middle mold body and molding the other side wall surface of the concrete product. A bottom mold body having a molding surface for molding the end face of the concrete product, the outer mold body being provided so as to be movable back and forth with respect to the middle mold body and vertically adjustable in position, and to the outer mold body. A mold apparatus for molding concrete products, characterized in that the bottom mold body is provided. 2. The concrete product according to claim 1, wherein the bottom mold body is supported by the outer mold body so as to be vertically movable by a link mechanism that is moved up during mold matching with the middle mold body and moved down during mold release. Forming machine for molding. 3. The concrete product molding according to claim 1 or 2, wherein the outer mold body is provided with a decorative mold body having a pattern molding surface for molding a decorative pattern on the other side wall surface of the concrete product. Formwork equipment for use. 4. The mold device for concrete product molding according to claim 2, wherein the bottom mold body has a pattern molding surface for molding a decorative pattern on an end surface of the concrete product.