CN220241823U

CN220241823U - Forming die of precast beam

Info

Publication number: CN220241823U
Application number: CN202321926087.6U
Authority: CN
Inventors: 廖彩瑶; 曹欣菁
Original assignee: Guangdong Tianzi Environmental Protection & Energy Technology Co ltd
Current assignee: Guangdong Tianzi Environmental Protection & Energy Technology Co ltd
Priority date: 2023-07-21
Filing date: 2023-07-21
Publication date: 2023-12-26
Anticipated expiration: 2033-07-21

Abstract

The utility model relates to the technical field of precast beam processing, in particular to a precast beam forming die which comprises a U-shaped outer die base, wherein an inner die assembly is erected in the outer die base, at least two supporting seats are arranged between the outer die base and the inner die assembly and correspondingly positioned at two ends of the inner die assembly, reinforcing steel bars are inserted between the two supporting seats and close to the outer side face of the inner die assembly and the upper end face between the two supporting seats, a plurality of cooling pipes are inserted between the middle parts of the two supporting seats, and the cooling pipes are used for introducing cooling liquid. The utility model is convenient for cement reverse molding, forms an inverted trapezoid precast beam structure, especially aims at the U-shaped part of the lower half part of the precast beam structure, can use the supporting seat to erect reinforcing steel bars in advance, and inputs cooling liquid through the cooling pipe, thereby accelerating the integral cooling solidification and improving the molding efficiency of the precast beam.

Description

Forming die of precast beam

Technical Field

The utility model relates to the technical field of precast beam processing, in particular to a precast beam forming die.

Background

At present, for manufacturing larger precast beams of bridge buildings and the like, a die is often manufactured on a construction site, the die is inverted and demolded, and then the strain intensity of reinforced cement is further required to be strengthened through spray maintenance and the like. In the prior art, people usually set up the template etc. limit at corresponding position directly according to the specification to twist with the reinforcing bar and form corresponding support body, and then make cement shaping. However, when the required length of the large-sized precast beam, especially part of precast beam, is longer, the inclined side plates are not easy to fix, the structure after molding is uneven, extra repair is needed, the longer the length is, the larger the required thickness is, the inside cement after molding is not completely solidified, and the whole deformation is easy to cause during maintenance. Therefore, the molding mode is only suitable for molding precast beams with a certain length, if precast beams with a larger length are needed, the precast beams can be spliced only by molding a plurality of precast beams, so that the manufacturing time is greatly increased, and once the length or gradient of the mold and the solidification time of cement are calculated incorrectly, the engineering progress of bridge construction is delayed by repairing and even re-manufacturing the precast beams.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model aims to provide a forming die for a precast beam. The utility model is convenient for cement reverse molding, forms an inverted trapezoid precast beam structure, especially aims at the U-shaped part of the lower half part of the precast beam structure, can use the supporting seat to erect reinforcing steel bars in advance, and inputs cooling liquid through the cooling pipe, thereby accelerating the integral cooling solidification and improving the molding efficiency of the precast beam.

The utility model discloses a forming die for a precast beam, which comprises a U-shaped outer die base, wherein an inner die assembly is erected in the outer die base, at least two supporting seats are arranged between the outer die base and the inner die assembly, the supporting seats are correspondingly positioned at two ends of the inner die assembly, reinforcing steel bars are inserted between the two supporting seats and close to the outer side face of the inner die assembly and the upper end face between the two supporting seats, a plurality of cooling pipes are inserted between the middle parts of the two supporting seats, and the cooling pipes are used for introducing cooling liquid.

In one embodiment, the inner mold assembly comprises a plurality of splicing pieces which are connected in a detachable mode in sequence, each splicing piece comprises a first frame, a second frame, a third frame and a fourth frame which are hinged in sequence, and detachable supporting mechanisms are further arranged between the first frame and the second frame and between the third frame and the fourth frame.

In one embodiment, the plurality of supporting mechanisms are symmetrically arranged along the length direction of the splicing piece, and each supporting mechanism at least comprises two hinging rods which are hinged in sequence.

In one embodiment, the support mechanism further comprises a reinforcing rod extending along the length direction of the splice and connected at a hinge between two of the hinge rods on the same side within the same splice.

In one embodiment, the cooling pipe is a soft rubber pipe, a protection cylinder is wrapped on the outer side of the part of the cooling pipe between the two supporting seats, and the protection cylinder is made of hard materials.

In one embodiment, the two side plates of the outer mold base are hinged to the bottom plate of the outer mold base, and a bracket is further arranged on the outer side of the outer mold base and connected with the two side plates of the outer mold base through a plurality of air cylinders arranged along the length direction of the outer mold base.

In one embodiment, the outer side of the supporting seat is provided with a screw in an outward extending mode, the screw is in threaded connection with a fastener, and the fastener is connected with the end portion of the side plate of the outer mold base.

Compared with the prior art, the technical scheme of the utility model has the beneficial effects that:

1. the utility model is convenient for cement reverse molding, forms an inverted trapezoid precast beam structure, especially aims at the U-shaped part of the lower half part of the precast beam structure, can use the supporting seat to erect reinforcing steel bars in advance, and inputs cooling liquid through the cooling pipe, thereby accelerating the integral cooling solidification and improving the molding efficiency of the precast beam.

2. When the splicing piece is unfolded to form the inner die assembly, the first frame and the second frame and the third frame and the fourth frame can be further propped up by the supporting mechanism, and after the prefabricated beam is completely formed, when the inner die assembly is disassembled, the supporting mechanism can be removed, and the splicing piece can be folded inwards along the hinge position between the frames, so that the splicing piece can be taken out one by one.

3. The two side plates of the outer mold base have a certain moving distance, after cement is added, the side plates can be closed towards the middle part as much as possible through the air cylinder, and the cement is pressed to avoid bubble gaps and the like after molding. The device is provided with the screw rod outside the supporting seat, and the screw rod is screwed into the fastener, so that the proper distance can be adjusted, the other end of the fastener is buckled at the end part of the side plate of the outer mold base, the position of the supporting seat is fixed, and cement which is gradually molded is pressed from the two ends.

Drawings

FIG. 1 is a front view of a preform beam forming mold according to the present utility model;

FIG. 2 is a top view of a preform beam forming mold according to the present utility model;

fig. 3 is a side cross-sectional view of the inner mold assembly of the present utility model.

Reference numerals illustrate: the device comprises a 1-outer die base, a 2-inner die assembly, a 21-first frame, a 22-second frame, a 23-third frame, a 24-fourth frame, a 25-hinging rod, a 26-reinforcing rod, a 3-supporting seat, a 4-reinforcing steel bar, a 5-cooling pipe, a 6-protection cylinder, a 7-bracket, an 8-cylinder, a 9-screw rod and a 10-fastener.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the present patent; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, so to speak, the two elements are communicated internally. It will be understood by those of ordinary skill in the art that the terms described above are in the specific sense of the present utility model. The technical scheme of the utility model is further described below with reference to the accompanying drawings and examples.

As shown in fig. 1-3, the forming die for the precast beam comprises a U-shaped outer die base 1, an inner die assembly 2 is erected in the outer die base 1, at least two supporting seats 3 are arranged between the outer die base 1 and the inner die assembly 2, the supporting seats 3 are correspondingly positioned at two ends of the inner die assembly 2, reinforcing steel bars 4 are inserted between the two supporting seats 3 and close to the outer side face of the inner die assembly 2 and the upper end face between the two supporting seats 3, a plurality of cooling pipes 5 are inserted between the middle parts of the two supporting seats 3, and the cooling pipes 5 are used for introducing cooling liquid. The utility model is convenient for cement reverse molding, forms an inverted trapezoid precast beam structure, especially aims at the U-shaped part of the lower half part of the precast beam structure, can pre-erect the steel bars 4 by utilizing the supporting seat 3, and inputs cooling liquid through the cooling pipe 5, thereby accelerating the integral cooling solidification and improving the molding efficiency of the precast beam. Specifically, this device is after setting up external mold base 1, according to the length of required precast beam, arrange supporting seat 3 and put into interior mould subassembly 2 at suitable both ends, thereby make interior mould subassembly 2 erect in external mold base 1, and before placing interior mould subassembly 2, can alternate reinforcing bar 4 and cooling tube 5 between two supporting seats 3, rely on the hole on supporting seat 3 can fix reinforcing bar 4 position temporarily, when making cement pour into between external mold base 1 and the interior mould subassembly 2, fill the space completely and wrap up reinforcing bar 4 and cooling tube 5, and then let in the coolant liquid to cooling tube 5, the effect of capillary is similar to the inside cooling of accelerating of cement, thereby form precast beam's U type part fast, and the reinforcing bar 4 of fixed upper end, further last mould location installation of being convenient for, continue to fall the mould and form precast beam's upper surface, thereby can quick shaping.

Further, the inner mold assembly 2 comprises a plurality of splicing members which are connected in a detachable manner in sequence, each splicing member comprises a first frame 21, a second frame 22, a third frame 23 and a fourth frame 24 which are hinged in sequence, and detachable supporting mechanisms are arranged between the first frame 21 and the second frame 22 and between the third frame 23 and the fourth frame 24. The inner mold assembly 2 can be assembled by splicing the splicing pieces in sequence through fixed structures such as screws according to the length requirement of the precast beams to form the inner mold assembly 2 with proper length, and in order to facilitate the disassembly of the inner mold assembly 2 wrapped in the middle after the precast beams form the upper layer, as shown in fig. 1, the inner mold assembly is designed to be composed of a first frame 21, a second frame 22, a third frame 23 and a fourth frame 24, wherein the first frame 21 and the second frame 22 are positioned on the left side, the third frame 23 and the fourth frame 24 are positioned on the right side, two ends of an arc-shaped hinging piece are actually hinged with the body of the inner mold assembly, and the first frame 21 and the second frame 22 and the third frame 23 and the fourth frame 24 are directly hinged. In this way, when the inner mould assembly 2 is formed by stretching, the supporting mechanism can further prop between the first frame 21 and the second frame 22 and between the third frame 23 and the fourth frame 24, and when the inner mould assembly 2 is disassembled after the prefabricated beams are completely formed, the supporting mechanism can be removed, and the inner mould assembly is folded inwards along the hinge positions among the frames, so that the spliced pieces can be taken out one by one.

And specifically, the plurality of supporting mechanisms are symmetrically arranged along the length direction of the splicing element, and each supporting mechanism at least comprises two hinging rods 25 which are hinged in sequence. The two hinge rods 25 are hinged to each other, and the two ends formed by the two hinge rods support the top and bottom of the inner side of the splice respectively, and cooperate to form a stable support structure. The support mechanism further comprises a reinforcing rod 26, wherein the reinforcing rod 26 extends along the length direction of the splicing element and is connected to the hinge position between the two hinge rods 25 on the same side in the same splicing element. In order to avoid the sliding of the hinge between the two hinge rods 25, the screws of the hinge on the same side can be directly and fixedly connected to the same reinforcing rod 26, so that a plurality of supporting mechanisms can be ensured to be positioned at proper positions to form a stable support.

In one embodiment, the cooling tube 5 is a soft rubber tube, the outer side of the part of the cooling tube 5 between the two supporting seats 3 is wrapped with the protection tube 6, and the protection tube 6 is made of hard materials. The cooling liquid is input into the middle part of the cement through the cooling pipe 5 to accelerate the cooling of the cement, and therefore, the protection cylinder 6 is arranged to avoid the corrosion caused by the direct contact of the soft rubber pipe with the cement, and the position penetrating into the cooling pipe 5 can be ensured to form a through hole, so that the integral strength is not influenced under the proper forming thickness, and the protection cylinder 6 is conveniently pulled out from one end together with the cooling pipe 5.

In addition, the two side plates of the outer die base 1 are mutually hinged with the bottom plate thereof, the outer side of the outer die base 1 is also provided with a bracket 7, and the bracket 7 is connected with the two side plates of the outer die base 1 through a plurality of air cylinders 8 arranged along the length direction of the outer die base 1. After cement is added, the side plates are closed towards the middle through the air cylinder 8 to compress the cement to avoid bubble gaps and the like after molding, two ends of the air cylinder 8 are hinged with the support 7 and the side plates of the outer die base 1 respectively, and other parts of the support 7 are in contact with the outer die base 1 to provide a supporting effect when the air cylinder 8 is not used. And, the outside of supporting seat 3 outwards extends and is equipped with screw rod 9, and screw rod 9 threaded connection has fastener 10, and fastener 10 is connected with the curb plate tip of external mold base 1. The length of the outer die base 1 is slightly larger than that of a general formed precast beam, and the position of the supporting seat 3 arranged according to the requirement is not easy to fix, so that the proper distance can be adjusted by arranging the screw rod 9 outside the supporting seat 3 and screwing the fastener 10 in a threaded manner, the other end of the fastener is buckled at the end part of the side plate of the outer die base 1, the position of the supporting seat 3 is fixed, and cement which is gradually formed is pressed from two ends.

In the description of the present application, it should be understood that the azimuth or positional relationship indicated by the azimuth words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationship shown in the drawings, merely for convenience of description of the present application and simplification of the description, and without contrary explanation, these azimuth words do not indicate or imply that the apparatus or element referred to must have a specific azimuth or be configured and operated in a specific azimuth, and therefore should not be construed as limiting the scope of protection of the present application.

In the drawings, the positional relationship is described for illustrative purposes only and is not to be construed as limiting the present patent; it is to be understood that the above examples of the present utility model are provided by way of illustration only and not by way of limitation of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. The utility model provides a forming die of precast beam, its characterized in that, including external mold base (1) that is the U type, erect interior mould subassembly (2) in external mold base (1), external mold base (1) with be equipped with two at least supporting seats (3) between interior mould subassembly (2), just supporting seat (3) correspond to be located the both ends of interior mould subassembly (2), two be close to between supporting seat (3) the lateral surface of interior mould subassembly (2) and two all alternate reinforcing bar (4) on the up end between supporting seat (3), two the middle part of supporting seat (3) still alternates many cooling tubes (5), cooling tube (5) are used for letting in the coolant liquid.

2. The precast beam forming die according to claim 1, wherein the inner die assembly (2) comprises a plurality of splicing elements which are connected in sequence in a detachable manner, each splicing element comprises a first frame (21), a second frame (22), a third frame (23) and a fourth frame (24) which are hinged in sequence, and detachable supporting mechanisms are further arranged between the first frame (21) and the second frame (22) and between the third frame (23) and the fourth frame (24).

3. A mould for forming precast beams according to claim 2, characterized in that the supporting means are a plurality of and symmetrically arranged along the length direction of the splicing element, each supporting means comprises at least two articulated rods (25) articulated in turn.

4. A mould for forming a precast beam according to claim 3, characterized in that the supporting means further comprise a reinforcing rod (26), the reinforcing rod (26) extending in the length direction of the splice and being connected at the hinge between two hinge rods (25) on the same side within the same splice.

5. The shaping die of the precast beam according to claim 1, characterized in that the cooling pipe (5) is a soft rubber pipe, a protection cylinder (6) is wrapped on the outer side of a part of the cooling pipe (5) between the two supporting seats (3), and the protection cylinder (6) is made of hard materials.

6. The forming die of the precast beam according to claim 1, wherein two side plates of the outer die base (1) are hinged with each other, a bracket (7) is further arranged on the outer side of the outer die base (1), and the bracket (7) is connected with the two side plates of the outer die base (1) through a plurality of air cylinders (8) arranged along the length direction of the outer die base (1).

7. The precast beam forming die according to claim 6, wherein a screw (9) is arranged on the outer side of the supporting seat (3) in an outward extending mode, the screw (9) is in threaded connection with a fastener (10), and the fastener (10) is connected with the end portion of the side plate of the outer die base (1).