JPS6029329B2 - Concrete pipe formwork disassembly equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device that automatically disassembles the formwork of concrete pipes, which was conventionally done manually, and is applicable to all types of concrete pipe diameters. be.

In addition, the present invention is based on the special features already proposed by the applicant.
This relates to an improvement of No. 5-12645y.

Below, embodiments of the present invention will be described with reference to the drawings. First,
As shown in Figures 1, 2 and 3, a formwork A for a concrete pipe is made up of a cylindrical main body 1, a flange 2 fixed to the end thereof, and a golden plate 2.
An end mold 3 that is removably iron-bonded to the end mold, a claw receiving ring 3a formed to protrude outward from the end mold, and a fixed distance D from the claw receiving ring 3a that is rotatably supported through the collar 2. It consists of several shaft villages 4 arranged in the center, a locking piece 5 fixed to the outer end of each ratchet, and a spring 6 urging the locking piece inward. As shown in Figures 1, 5, and 6, a slider S that can reciprocate in the length direction of the formwork A is provided, and several simultaneous rotating bolts arranged along the radial direction of the formwork A are attached to the slider. 11, a nut 12 screwed onto each bolt, a pawl plate 14 with several pawl ring engagement pawls 13 fixed to the nut, and a fixed distance E from the pawl 13 in the radial direction of the formwork A. Several telescoping villages 16 are arranged in the telescopic villages 16, and a protrusion 16 for rotating the engaging and disengaging piece protrudes from the telescoping villages.
a. In addition, in FIGS. 1 and 2, a screw thread 7 is used to fix the main body 1 and the flanges 2, 2a at both ends, and the number of engaging pieces 5 is three each, and the contact of the protrusion 16a with the engaging pieces is If the distance between the contact point and the center of Marimura 4 is F, then E=D+F holds true.

In addition, since the end mold 3a on the small diameter side of the formwork A is easily demolded, the end mold 3a is formed with an outer circumferential surface 3b that matches the inclined inner peripheral surface 2b of the collar 2a, and is fixed by fittings. , the same as the illustrated engagement/disengagement piece 5 may be used. Further, the nut 12, the claw plate 14, and the telescopic punch 16 move together as the bolt 11 rotates, and as shown in FIG. A hydraulic cylinder 15 that guides and holds the end piston of the telescopic village 16 so as to be movable in a direction perpendicular to the length direction.
is also fixed to the holder 16b with a rod 15a. Also, the fifth
As shown in the figure, the bolt 1'1 is rotated by the rotating shaft 11a of the motor and the bevel gear 11b. Next, to explain the operation, as shown in Fig. 4, the filled and dried formwork A of the concrete pipe B that has exited the concrete filling device is sent by the main conveyor 8 onto the rollers 10 of the end mold disassembly station 9, and as shown in Fig. 6. After raising the frame 17 of the roller 10 as shown in FIG.

Next, as shown in FIG. 5, the claws 14 and the telescopic punch 16 are expanded in advance by rotation of the bolt 11 until they correspond to the diameter of the formwork A. Move the slider S forward, then move the claw body and telescopic village to the first position.
Clamp the end mold 3 by narrowing it as shown in the figure, extend the three telescopic villages 16, switch the engaging piece from the engaging position 5 to the disengaging position 5a as shown in Fig. 5, and move the claw body as shown in Fig. 5. is vibrated in an appropriate manner to make it easier to disassemble the end mold 3, and then retreated.
The end die 3 is disassembled by pulling the claw receiving ring 3a with the claw 13, and is clamped on the side surface (the upper side in the drawing) of the end die 3 with a clamp of the same structure as in FIG. drop on top Of course, before that, the claw bodies 14 are expanded and then further retreated. The end mold 3a on the small diameter side is easy to disassemble, but the end mold 3 on the large diameter side is easily disassembled, so the movable stopper 19 shown in FIG. 3 to prevent it from being pulled. Next, the rollers 10 are lowered, and the main conveyor 8 sends the main body 1 to the demolding station 9'.
2 is fixed by rotating it around the shaft 25, and the cylinder 22
is extended to extrude the extrusion plate 23 to remove the concrete pipe B and the end mold 3a, and then remove the end mold 3a by an appropriate method. After that, after returning each device to its original position, the main body mold 1 and the end molds 3, 3a are cleaned by brushing and blowing air in an appropriate manner while being sent on the conveyor 8a, and then reassembled in the reverse order of the above. conduct. In addition, concrete pipe B has 24
to send it to the desired location. As is clear from the above description, according to the present invention, even if the diameter of the formwork A changes, the claw receiving ring 3
The distance between a and the detachment 4 for the engaging/disengaging piece is constant, the distance between the claw 13 on the slider S side and the telescopic punch 16 for rotating the engaging/disengaging piece is constant, and the claw and the pestle are integrated into the formwork. Since it moves in the radial direction of A, it is possible to provide a formwork disassembling device that can be applied to all types of formwork pipe diameters.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a longitudinal sectional view of a formwork disassembly device, Fig. 2 is a side view of a partially cutaway part of the formwork,
Fig. 3 is a front view of the same, Fig. 4 is a plan view for explaining the function, and Fig. 5 is a front view of the same.
The figure is a vertical cross-sectional view of the end mold disassembly device, FIG. 6 is a front view thereof, and FIG. 7 is a plan view of the demolding clamp section. A: Formwork, B: Concrete pipe, S: Slider, 1:
Main body type, 2, 2a: maxim, 3, 3a: edge type, 4: remote village,
5: Engagement/disengagement piece, 6: Spring, 7: Bolt, 10: Roller, 1
1: Rotating bolt, 12: Nut, 13: Claw, 14: Claw body, 15, 20, 22: Hydraulic cylinder, 16: Telescopic village,
16a: Abutment. Figure 2 Figure 3 Snake Figure 4 Figure 5 Figure 6 Figure 7

Claims (1)

[Claims] 1 A formwork for a concrete pipe is made up of a cylindrical main body, a collar fixed to the end thereof, an end mold removably fitted to the collar, and a mold formed so as to protrude outward from the end mold. a pawl receiving ring, several shaft rods rotatably supported through the collar and arranged at a constant distance from the pawl receiving ring, a locking piece fixed to the outer end of each shaft rod, and a detachable piece fixed to the outer end of each shaft rod, A slider configured with a spring that urges the detached pieces inward and capable of reciprocating in the length direction of the formwork is provided, and the slider is provided with several simultaneous sliders arranged along the radial direction of the formwork. A rotating bolt, a nut screwed onto each bolt, several pawl plates with pawls for engaging a pawl ring fixed to the nuts, and a number of pawl plates arranged at a constant distance from the pawls in the radial direction of the formwork. A concrete pipe formwork disassembly device comprising a telescopic rod and a protrusion for rotating a detachable piece protruding from the telescopic rod.