JP4409934B2 - Internal mold take-out device for cylindrical concrete block mold - Google Patents

Description

  The present invention relates to an inner mold take-out device for taking out an inner mold from a cylindrical concrete block mold (hereinafter abbreviated as “molding mold”) such as a box culvert, and in particular, it is generally used for a mold. The present invention relates to a relatively simple and safe inner mold take-out device that includes an adjustment mechanism for reducing the installation area and providing flexibility in the installation location.

  As a conventional inner mold take-out device, there are a counter weight system that balances using a counter weight corresponding to the weight of the inner mold, and a crane system that pulls out the inner mold while the mold is suspended by a crane. The counterweight method has a drawback that the apparatus becomes larger and heavier because it is necessary to provide the apparatus with a counterweight that is balanced with the inner mold. In addition, the crane system requires a separate crane for suspending and moving the mold, and thus has problems such as lack of maneuverability and quickness. In order to solve these problems, the inner mold take-out device disclosed in Patent Document 1 includes a support mechanism that supports the inner mold holding frame and a reaction force mechanism that supports the inner mold holding reaction force on the base frame. Are provided integrally.

In an actual inner mold take-out operation, since the inner mold is initially housed in the mold, the inner mold take-out device needs only a small holding force. On the other hand, if the inner die is extended, the inner die weight is applied to the inner die side of the inner die take-out device, and the inner die tends to fall. For this reason, the frictional force between the mold and the inner mold increases, making it difficult to pull out the inner mold, and there is a risk that the mold or the inner mold is damaged.
Therefore, in order to pull out the mold without applying the holding reaction force of the inner mold, it is necessary to perform a pulling operation while adjusting the holding reaction force of the inner mold take-out device. However, in the disclosed invention of Patent Document 1, the beam height is adjusted by a support jack so that the reaction force mechanism counteracts the moment generated by holding the inner mold. However, the beam leveling mechanism is described. There is no suggestion to ask for it. For this reason, it has been difficult to quickly level the inner mold according to the difference in counter moment caused by holding the inner molds having different weights.
In addition, the internal mold take-out device for line installation is applied to a mass production system for a specific mold, and can be used universally for internal molds configured in various shapes and weights. It was not a consideration. Furthermore, since this apparatus is incorporated as a part of a factory production line that is connected to concrete injection / curing and demolding of molds, there is a problem that the installation area is large and the installation location and change thereof are not flexible. there were.
Japanese Patent No. 3012146, paragraph numbers 0010 to 0013, FIG.

  The present invention relates to an inner mold take-out device that takes out an inner mold from a mold of a cylindrical concrete block such as a box culvert, and is provided with an adjustment mechanism for universally corresponding to an inner mold having various shapes and weights. The present invention provides a novel inner mold take-out device that enables quick adjustment of holding and has a simple configuration with a reduced installation area and flexibility in installation location.

  In view of the above problems, an inner mold take-out device for a cylindrical concrete block mold according to the present invention is configured as follows. In the first configuration of the present invention, a base (1) for placing a cylindrical concrete block molding die (5) with an inner die (51) exposed at least on one end side in the longitudinal direction along the longitudinal direction; A support base (2) held horizontally on the table (1) and moving toward and away from the exposed side of the inner mold (51), and the support base (2) is a longitudinal axis of the mold (5). Are supported by the support base (2) so as to be able to move up and down, and engage with the exposed side of the inner mold (51) to engage the inner mold (51). ), And supporting means (3) for supporting.

  Since the support base is movable toward and away from the exposed side of the inner mold (51) of the mold (5) placed on the base, the support means (3) is quickly engaged with the inner mold (51). The inner mold (51) is supported. Also, the swing adjustment of the inner mold (51) by the swing mechanism (21, 22) and the vertical adjustment of the inner mold (51) by the support means were quickly performed, and the inner mold (51) was held horizontally. In the state, it is pulled out smoothly from the mold (5). In addition, after the work is completed, the device is stored on the base (1) side, so that the installation area is very small, and it is used only by being stopped in the factory without using anchor means. Therefore, appropriate free movement becomes possible.

In the second configuration of the present invention, the supporting means (3) in the first configuration is a cantilever rod-like fitting rod (4) fitted from the exposed side of the inner mold, and the fitting rod (4) can be horizontally adjusted. It is characterized by two parallel rods. As an interval adjusting mechanism for adjusting the interval between the insertion rods (4), the insertion rods (4) penetrating through the horizontal guide are connected symmetrically by the link (40), and both insertion rods (4) are connected. By increasing or decreasing the width by the ball screw mechanism (41, 42), it is possible to adjust the interval between the fitting rods (4). Thereby, it can respond | correspond universally with respect to the internal type | mold (51) of various shapes (especially internal type with a different width). Note that the reference numerals used in the drawings in the present specification are for convenience of understanding of the present invention, and the configuration of the present invention is not limited to the form shown in the drawings. Of course not.

  According to the inner mold take-out device for a cylindrical concrete block mold according to the present invention, as an inner mold take-out device in a mixed environment of different types of mold products, the inner mold is quickly held, maintained horizontally, and taken out in general. Can do.

When spread, the inner mold take-out device is quickly engaged with the support means to support the inner mold, and the inner mold swing adjustment by the swing mechanism and the inner mold vertical adjustment by the support means can be performed quickly. Thus, the inner mold can be smoothly pulled out from the mold while being held horizontally.
Moreover, it becomes possible to make it respond | correspond universally with respect to an internal mold | die of various shapes by the space | interval adjustment mechanism for adjusting the space | interval of insertion rods. After completion of the work, the industrial effect is remarkable, such that the apparatus can be housed on the base side to reduce the installation area.

  Hereinafter, an inner mold take-out device A (hereinafter abbreviated as “this device”) of a cylindrical concrete block mold according to the present invention will be described in detail with reference to the drawings. FIG. 1 is an external view of an inner mold take-out device according to the present embodiment, FIG. 2 is an operation explanatory view of an insertion rod according to the present embodiment, and FIG. 3 is an operation explanatory view of the inner mold take-out device according to the present embodiment. .

The cylindrical concrete block molding die 5 (hereinafter abbreviated as “molding die”) has an outer frame 50 that defines the outer contour of the product, and an inner die 51 that defines the inner pipe space of the cylinder. . After the cylindrical concrete block is formed, the inner mold 51 is pulled out from the outer frame 50 along the longitudinal direction, so that the ends of the inner mold 51 are attached so as to be exposed from both ends of the outer frame 50.
The molding die 5 is not a constituent element of the present invention, and the molding die 5 to be applied here is a conventional one and its structure is within the scope of the publicly known technology, so that detailed description is omitted.

  The illustrated base 1 is provided with a mounting table 10 on which the mold 5 is mounted, and a pair of rail bodies 11 are provided so as to be drawn out and stored along the longitudinal direction. A rectangular plate-like slide table 12 is attached to one end side of the rail body 11 so as to be bridged. A support base 2 made of a frame-like metal material having a predetermined height is disposed on the upper surface side of the slide table 12. A swing mechanism is disposed on the support base 2, and a hinge portion 21 that rotatably supports the bottom plate 20 of the support base 2 at a position on one end side of the slide base 12 that is offset from the mold 5 side, It is comprised from the rocking jack 22 which raises / lowers the bottom plate 20 of the opposite side.

The swinging jack 22 is disposed on an extended portion 20a in which the bottom plate 20 of the support base 2 is extended to the side opposite to the mold by a predetermined width. The upper side of the swinging jack 22 is connected to a gate-shaped member 23 that straddles the upper side of the extending portion 20a (where?) In the width direction, and both lower ends of the gate-shaped member 23 are on the upper surface of the slide base 12. Fixed support. A handle 22 a is attached to the swinging jack 22.
A coil spring 24 is interposed between the back surface side of the extending portion 20a and the slide table 12 with an expanded elastic force so as to push up the support base 2 upward. The coil spring 24 is used to keep the device A substantially horizontal by preventing the device A from sinking to one end side due to the weight of the device A when the device A is not connected to the inner mold 51.

  Above the support base 1, a rectangular box-like lifting box body 3 constituting the support means of the inner mold 51 is engaged so as to be movable up and down. The lifting / lowering box body 3 is attached so as to vertically penetrate metal column bodies 25 erected from the four corners of the support base 1, and the upper end side of each column body 25 is attached to a rectangular plate-shaped top plate 25 a. It is connected and fixed. The support base 2 and the lifting box 3 are connected via a lifting jack 30 as lifting means. A handle 30 a is attached to the lifting jack 30.

Further, from the elevating box 3, fitting rods 4 which are two parallel casings extending through the elevating box 3 in the substantially horizontal longitudinal direction and extending substantially horizontally are disposed on the mold side. . The opposing plate 31 facing the longitudinal direction of the elevating box body 3 through which the two insertion rods 4 and 4 are penetrated has a pair of widened in the horizontal direction in consideration of movement when adjusting the interval between the insertion rods 4 and 4. A long hole-shaped horizontal guide hole 31a is formed.
The fitting rod 4 through which the lifting / lowering box body 3 is penetrated is exposed through the lifting / lowering box body 3 so as to bridge over the horizontal guide holes 31a arranged in both opposing plates 31, and the longitudinal direction according to the horizontal guide holes 31a. It is restrained so that it can move horizontally only in the width direction perpendicular to it. In addition, as shown in FIG. 2, the fitting rods 4 are connected to each other via a link member 40 in the lifting box 3. Furthermore, an elongated vertical guide hole 31b that is widened in the vertical direction is formed in the middle between the horizontal guide holes 31a. The link member 40 is rotatably connected by a link shaft 40a penetrated so as to span between the opposing upper and lower guide holes 31b, and is restrained so as to be movable only in the vertical direction according to the upper and lower guide holes 31b. Yes. With the above configuration, the fitting rods 4 connected via the link member 40 move symmetrically with respect to the width direction (substantially horizontal direction).

Further, as shown in FIG. 4, nut bodies 41, 41 that are reverse screws are attached to the fitting rod 4 in the elevating box body 3, and an adjustment bolt 42 that is orthogonal to the fitting rod 4 is attached to the nut body 41. Are screwed together. Both ends of the adjustment bolt 42 are exposed to the outside from the side plate 32 facing the width direction of the lifting box 3, and a handle 42 a for rotating the adjustment bolt 42 is attached to one end of the adjustment bolt 42. ing. A connecting portion 43 for connecting to the inner mold 51 is provided on the lifting box body 3 side of the fitting rod 4 exposed to the mold 5 side. The connecting portion 43 includes an engaging plate 43a erected substantially vertically from a side surface along the axial direction of the fitting rod 4, and a fitting groove 43b opened from the upper portion toward the inner mold 51. In addition, the inner mold 51 is provided with a circular projecting portion 52 having an insertion port 52a for inserting the insertion rod 4, and the projecting portion 52 has a connected portion 53 for connecting with the apparatus A. Provided. The connected portion 53 includes an engaging plate 53a erected substantially vertically from the upper surface along the axial direction of the protruding portion 52, and a rod-like fitting pin 53b protruding in a wing shape in both width directions from the upper portion thereof. is doing. On the other hand, when connected to the inner mold 51, the connecting portion 43 connected to the connected portion 53 is hooked on the fitting pin 53 b fitted in the fitting groove 43 b, so that the connecting portion 43 and the connected portion 53 are connected. A hook-shaped stopper 43c is arranged for fixing the screw.
[Operation of Example]

The apparatus A having the above-described configuration operates as follows.
First, the apparatus A engaged with the base 1 is pulled out from the base 1 via the rail body 11. Next, the molding die 5 after molding is placed on the mounting table 10 on the base 1 along the longitudinal direction. Subsequently, the apparatus A is moved closer to the molding die 5 side, and the inclination, height, and width of the fitting rod 4 of the apparatus A are adjusted until they are substantially the same as the insertion port 52 a of the inner mold 51.
To adjust the inclination of the fitting rod 4, the handle 22a of the swinging jack 22 is turned to adjust the angle of the support base 1 substantially horizontally with the hinge portion 21 as the rotation axis (arrow a in FIG. 3). The height of the insertion rod 4 is adjusted by turning the handle 30a of the lifting jack 30 and moving the lifting box 3 up and down so that the height of the insertion rod 4 is the same as the insertion port 52a of the inner mold 51 of the molding die 5. The height is adjusted (FIG. 3, arrow b). At the same time, in order to adjust the width of the insertion rod 4, the handle 42 a attached to the adjustment bolt 42 is rotated in the appropriate forward and reverse directions according to the interval of the insertion port 52 a so that the insertion rods 4 face each other in the horizontal guide hole 31 a. It is horizontally moved symmetrically in the direction (FIG. 2, arrow c).

After completing the above adjustments or while finely adjusting as the inner mold 51 is approached, the apparatus A is moved to the mold 5 side, and the fitting rod 4 is inserted into the insertion port 52a of the inner mold 51. Accordingly, when the fitting pin 53b of the inner mold 51 is completely fitted into the fitting groove 43b of the fitting rod 4, the stopper 43c is manually tilted and fixed. The apparatus A and the inner mold 51 are connected as described above.
After this work, the apparatus A is moved to the side of the anti-molding die 5 (usually depending on human power, but can be driven by a motor), and the inner die 51 is pulled out. At this time, the inner mold 51 may be difficult to pull out because the weight of the inner mold 51 in a cantilevered state causes the fitting base 4 side of the support base 1 to be lowered. In such a case, the handle 22a of the swinging jack 22 is rotated to appropriately adjust the elevation or depression of the inner mold 51 (FIG. 4, arrow a), and if necessary, the handle 30a of the lifting jack 30 is moved. The inner die 51 is also adjusted up and down by rotating (FIG. 4, arrow b).
As described above, the inner mold 51 is smoothly pulled out from the mold 5 while being held substantially horizontally.
[Possibility of other embodiments]

  Various conventional configurations can be used for the configuration of the connecting portion 43 and the connected portion 53 that connect the fitting rod 4 and the inner mold 51, and the configuration is limited to the configuration using the fitting groove 43b and the fitting pin 53b of the present embodiment. Is not to be done. For example, as shown in FIG. 5, it is also possible to make it the structure which penetrates the through-holes 44b and 54b provided in the connection part 44 of the insertion rod 4 and the to-be-connected part 54 of the inner mold | type 51 with the penetration pin 44c. That is, the connecting portion 44 of the insertion rod 4 serves as an engagement plate 44a erected substantially vertically from the side surface along the axial direction of the insertion rod 4 and opens the through hole 44b. A through pin 44c made of a metal rod is connected to the engagement plate 44a with a chain or the like. On the other hand, the connected portion 54 of the inner mold 51 is an engagement plate 54 a that is erected substantially vertically from the upper surface along the axial direction of the protruding portion 52. The engaging plate 54a is provided with a through hole 54b at a portion overlapping the through hole 44b when the fitting rod 4 and the inner mold 51 are connected. With the above configuration, when the insertion rod 4 is inserted into the insertion port 52a of the protruding portion 52 of the inner mold 51, the through holes 44b and 54b overlap (FIG. 5A). In this state, the insertion pin 4 and the inner mold 51 are connected by penetrating the through pin 44c through both the through holes 44b and 54b, and the connection between the insertion rod 4 and the inner mold 51 is released by removing the through pin 44c. Can be performed (FIG. 5B).

Further, the spacing adjusting mechanism of the insertion rods 4 is not limited to the present embodiment in which the insertion rods 4 are connected to each other via the link member 40. For example, as shown in FIG. 6, the distance adjusting mechanism of the fitting rod 4 can be constituted by a pinion shaft 45 and a pair of rack members 46. That is, the pinion shaft 45 is arranged in parallel with the insertion rod 4 at an intermediate position between the insertion rods 4, and both ends of the pinion shaft 45 are bridged between the opposing plates 31 facing the longitudinal direction of the lifting box 3. One end side of the pinion shaft 45 is exposed to the outside of the elevating box 3, and a handle 45b for rotating the pinion shaft 45 is attached. The rack member 46 is a metal bar member in which a rack 46 a that matches the gear 45 a formed on the pinion shaft 45 is formed. One rack member 45 is screwed into the upper portion of the gear 45 a of the pinion shaft 44 with one end fixed to the upper side of the fitting rod 4. The other rack member 45 is screwed into the lower portion of the gear 45a of the pinion shaft 45 with one end fixed to the lower side of the fitting rod 4. In addition, guides 45c are arranged above and below the gear 45a to prevent the rack member 45 screwed into the gear 45a from coming off. With the above configuration, when the handle 45b attached to the pinion shaft 45 is rotated, the gear 45a of the pinion shaft 45 is rotated, and the upper and lower racks 46 and 46 that are screwed into the gear 45a are symmetrically expanded and contracted. (FIG. 6, arrow d).

It is an external view of the internal mold taking-out apparatus in a present Example. It is action | operation explanatory drawing of the insertion rod in a present Example. It is operation | movement explanatory drawing of the internal mold taking-out apparatus in a present Example. It is operation | movement explanatory drawing of the internal mold taking-out apparatus in a present Example. It is explanatory drawing which shows the structure of the connection part in other embodiment, and a to-be-connected part. It is explanatory drawing which shows the structure of the space | interval adjustment mechanism of the insertion collar in other embodiment.

Explanation of symbols

A Internal mold take-out device 1 Base 10 Mounting table 11 Rail body 12 Slide table 2 Support base 20 Bottom plate 20a Extension part 21 Hinge part 22 Oscillating jack 22a Handle 23 Portal material 24 Coil spring 25 Column body 25a Top plate 3 Lifting box Body 30 Jack for raising and lowering 30a Handle 31 Opposing plate 31a Horizontal guide hole 31b Vertical guide hole 32 Side plate 4 Insertion rod 40 Link member 40a Link shaft 41 Nut body 42 Adjustment bolt 42a Handle 43 Connecting part 43a Engaging plate 43b Fitting groove 43c Stopper 44 connecting part (another embodiment)
44a Engagement plate 44b Through hole 44c Through pin 45 Pinion shaft (another embodiment)
45a Gear 45b Handle 45c Guide 46 Rack member (another embodiment)
46a Rack 5 Mold 50 Outer frame 51 Inner mold 52 Protruding part 52a Insert port 53 Connected part 53a Engagement plate 53b Fitting pin 54 Connected part (another embodiment)
54a Engagement plate 54b Through hole

Claims (2)

A base (1) for placing the cylindrical concrete block molding die (5) with the inner die (51) exposed at least on one end side in the longitudinal direction along the longitudinal direction;
A support base (2) that is held on the base (1) and moves horizontally and contacts and separates from the exposed side of the inner mold (51);
A swing mechanism (21, 22) for swinging the support base (2) with an elevation angle or a dip angle with respect to the longitudinal axis of the mold (5);
A support means (3) which is supported by the support base so as to be movable up and down and engages the exposed side of the inner mold (51) to support the inner mold (51)
An inner mold take-out device for a cylindrical concrete block molding die characterized by comprising: The support means is a cantilever rod-like fitting rod (4) fitted from the exposed side of the inner mold (51), and the fitting rod (4) is a horizontal parallel double rod with adjustable spacing. Item 2. An inner mold take-out device for a cylindrical concrete block mold according to Item 1.

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