Mold opening and closing device for concrete prefabricated guardrail mold box

Abstract

The utility model discloses a mold opening and closing device for a concrete prefabricated guardrail mold box. The mold opening and closing device comprises a mold opening mechanism and a mold closing mechanism, the mold opening mechanism and the mold closing mechanism are located at the two ends of the mold box, end plates are hinged to the two ends of the mold box, and the end plates are connected with side plates and a bottom plate of the mold box through buckles; the mold opening mechanism comprises a mold opening bracket, a lock opening and closing component and a box opening component; the opening and closing lock part comprises an opening and closing seat, a Y-shaped shifting fork and an opening and closing lock oil cylinder, a shifting rod of the Y-shaped shifting fork is matched with a buckle on the mold box, and when a piston rod of the opening and closing lock oil cylinder telescopically drives the Y-shaped shifting fork to rotate, the buckle on the mold box can be opened or closed; the box opening component comprises a box opening seat, a box opening arm and a box opening oil cylinder; when a piston rod of the box opening oil cylinder stretches out and draws back to drive the box opening arm to rotate, the box opening arm abuts against the inner side wall of the end plate, and the end plate is driven to turn outwards to be opened. According to the utility model, the end plate of the mould box can be quickly opened and closed, so that the concrete guardrail can be quickly demoulded from the mould box, the demoulding labor intensity is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of precast molds, and in particular to a mold opening and closing device for a precast concrete guardrail mold box. Background Technology

[0002] In the construction of road traffic safety facilities, precast concrete guardrails play a crucial role, effectively preventing vehicles from veering off the road and ensuring driving safety. Currently, when precast concrete guardrails are produced using casting molds, these molds are typically fixed structures. After the guardrails solidify, the fixing bolts are manually removed, and the guardrails are then lifted out of the molds, separating the molds from the solidified concrete guardrails. This process of casting and demolding is cumbersome, resulting in high labor costs, high labor intensity, and low production efficiency. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a precast concrete guardrail mold box opening and closing device, which uses a mold box with openable and closable end plates to cooperate with an automatic opening and closing device to realize the rapid opening and closing of the mold box end plates, thereby facilitating the rapid demolding of the concrete guardrail from the mold box, saving the mold box opening and closing time, reducing the labor intensity of demolding, and improving production efficiency.

[0004] To achieve the above objectives, this utility model provides a precast concrete guardrail mold box opening and closing device, including an opening mechanism and a closing mechanism; the opening mechanism and the closing mechanism are located at both ends of the mold box, and end plates are hinged to both ends of the mold box, and the end plates on the mold box are automatically opened and closed by the opening mechanism and the closing mechanism; the end plates of the mold box are connected to the side plates and the bottom plate of the mold box by buckles;

[0005] The mold opening mechanism includes a mold opening bracket and an opening and closing lock component and a box opening component disposed on the mold opening bracket; the opening and closing lock component includes an opening and closing seat, a Y-shaped shift fork and an opening and closing lock cylinder. The opening and closing seat is disposed on the mold opening bracket. The cylinder body of the opening and closing lock cylinder is hinged to the opening and closing seat. The piston rod of the opening and closing lock cylinder is hinged to one end of the Y-shaped shift fork. The Y-shaped shift fork is rotatably mounted on the opening and closing seat. The shift rod of the Y-shaped shift fork cooperates with the buckle on the mold box. When the piston rod of the opening and closing lock cylinder extends and retracts to drive the Y-shaped shift fork to rotate, the buckle on the mold box can be opened or closed.

[0006] The box-opening component includes a box-opening base, a box-opening arm, and a box-opening cylinder. The box-opening base is fixed on the mold-opening bracket. The cylinder body of the box-opening cylinder is hinged to the box-opening base. The piston rod of the box-opening cylinder is hinged to one end of the box-opening arm. The middle part of the box-opening arm is rotatably mounted on the box-opening base. The box-opening arm is located inside the end plate of the mold box. When the piston rod of the box-opening cylinder extends or retracts, it drives the box-opening arm to rotate. The box-opening arm then abuts against the inner wall of the end plate, driving the end plate to flip outward and open.

[0007] Furthermore, the mold opening support includes a crossbeam and legs vertically fixed to the bottom of both ends of the crossbeam; a beam frame is provided below the crossbeam, and a beam frame lifting cylinder is fixed on the crossbeam. The piston rod of the beam frame lifting cylinder is fixedly connected to the beam frame to drive the beam frame to move up and down; the opening seat of the box opening component and the opening and closing seat of the opening and closing lock component are both fixed on the beam frame.

[0008] Furthermore, guide columns are fixed at both ends of the beam frame, and the end of the guide column away from the beam frame slides through the crossbeam.

[0009] Furthermore, guide columns are fixed at both ends of the beam frame, and the end of the guide column away from the beam frame slides through the crossbeam.

[0010] Furthermore, the mold closing mechanism is located between the two legs at the bottom of the mold opening bracket. The mold closing mechanism is located outside the end plate of the mold box. The mold closing mechanism includes a mold closing base, a mold closing pressure arm, and a mold closing cylinder. One end of the mold closing pressure arm is hinged to the mold closing base, and the mold closing pressure arm can rotate around the mold closing base. One end of the mold closing cylinder is hinged to the mold closing base, and the other end is hinged to the mold closing pressure arm. When the piston rod of the mold closing cylinder extends or retracts, it drives the mold closing pressure arm to rotate, causing the end plate of the mold box to rotate in the closing direction.

[0011] Furthermore, a roller is rotatably mounted on the end of the mold closing arm that is away from the mold closing base. The roller is covered with a rubber ring. When the mold closing arm drives the end plate to close and flip, the mold closing arm abuts against the outer wall of the end plate through the roller.

[0012] The beneficial effects of this utility model are:

[0013] This utility model discloses a precast concrete guardrail mold box opening and closing device, which uses a mold box with openable and closable end plates in conjunction with an automatic mold opening and closing device to achieve rapid opening and closing of the mold box end plates, thereby facilitating the rapid demolding of the concrete guardrail from the mold box, saving mold box opening and closing time, reducing demolding labor intensity, and improving production efficiency. Attached Figure Description

[0014] Figure 1 This is a front view of the structure of this utility model during the opening and closing of the mold.

[0015] Figure 2 This is a side view of the structure of this utility model during the opening and closing of the mold.

[0016] Figure 3 This is a schematic diagram of the overall structure of the mold opening mechanism and the mold closing mechanism in this utility model.

[0017] Figure 4 This is a schematic diagram of the overall structure of the mold box in this utility model.

[0018] Figure 5 This is a schematic diagram of the overall structure of the end plate of the mold box in this utility model.

[0019] Figure 6 This is a schematic diagram of the overall structure of the buckle of the mold box in this utility model.

[0020] Figure 7 This is a schematic diagram of the overall structure of the mold closing mechanism in this utility model.

[0021] In the diagram: 1. Mold opening mechanism; 11. Mold opening bracket; 111. Crossbeam; 112. Support leg; 113. Beam frame; 114. Beam frame lifting cylinder; 115. Guide column; 12. Opening and closing lock component; 121. Opening and closing seat; 122. Y-shaped shift fork; 123. Opening and closing lock cylinder; 13. Box opening component; 131. Box opening seat; 132. Box opening arm; 133. Box opening cylinder; 2. Mold closing mechanism; 21. Mold closing base; 22. Mold closing pressure arm; 23. Mold closing cylinder; 24. Roller; 3. Mold box; 31. Mold table; 32. Base plate; 33. End plate; 34. Side plate; 35. Buckle fixing shaft; 36. Buckle; 361. Buckle plate; 362. Fixing pivot; 363. Buckle compression spring; 364. Locking tension spring. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0023] This utility model discloses a mold opening and closing device for a precast concrete guardrail mold box.

[0024] Reference Figure 1 and Figure 2 A precast concrete guardrail mold box opening and closing device includes an opening mechanism 1, a closing mechanism 2, a hydraulic station, and an electrical control system. The hydraulic station provides power to the hydraulic cylinders of the opening mechanism 1 and the closing mechanism 2, and the electrical control system controls their movement. The opening mechanism 1 and the closing mechanism 2 are located at both ends of the mold box 3, and end plates 33 are hinged to both ends of the mold box 3. The opening mechanism 1 and the closing mechanism 2 can automatically and quickly open and close the end plates 33 on the mold box 3, facilitating the rapid demolding of the concrete guardrail from the mold box 3, saving the opening and closing time of the mold box 3, reducing labor intensity, and improving labor efficiency.

[0025] Reference Figure 4The mold box 3 includes a mold platform 31, a base plate 32, an end plate 33, and a side plate 34. The base plate 32 is mounted on the mold platform 31. The side plate 34 is fixed on the lower side of the base plate 32. The end plate 33 is hinged to both ends of the base plate 32. The side plate 34 and the outer wall of the base plate 32 near the end plate 33 are provided with buckles 36. The end plate 33 is fixed with a buckle fixing shaft 35 that cooperates with the buckle 36.

[0026] Reference Figure 5 and Figure 6 The buckle 36 includes a buckle plate 361, a fixed rotating shaft 362, a buckle compression spring 363, and a locking tension spring 364. The fixed rotating shaft 362 is installed on the outer side wall of the side plate 34 or the bottom plate 32. One end of the buckle compression spring 363 and the locking tension spring 364 are connected to the buckle plate 361, and the other end is connected to the side plate 34 or the bottom plate 32 to provide tension force and ensure stability when the buckle is locked. The buckle plate 361 has a buckle groove that is adapted to the buckle fixing shaft 35. The buckle plate 361 rotates around the fixed rotating shaft 362 to achieve the locking and unlocking with the buckle fixing shaft 35 on the end plate 33.

[0027] Reference Figure 2 and Figure 3 The mold opening mechanism 1 includes a mold opening support 11, an opening and closing locking component 12, and a box opening component 13. The mold opening support 11 includes a crossbeam 111 and support legs 112 vertically fixed to the bottom of both ends of the crossbeam 111. A beam frame 113 is provided below the crossbeam 111, and a beam frame lifting cylinder 114 is fixed on the crossbeam 111. The piston rod of the beam frame lifting cylinder 114 is fixedly connected to the beam frame 113, thereby driving the beam frame 113 to move up and down. In order to ensure the stability of the beam frame 113 during the up and down movement, guide columns 115 are fixed at both ends of the beam frame 113. The end of the guide column 115 away from the beam frame 113 slides through the crossbeam 111, thereby guiding the up and down movement of the beam frame 113.

[0028] Reference Figure 2 and Figure 3Two opening and closing locking components 12 are provided, and the two opening and closing locking components 12 are respectively installed at both ends of the beam frame 113. The opening and closing locking component 12 includes an opening and closing seat 121, a Y-shaped shift fork 122, and an opening and closing locking cylinder 123. The opening and closing seat 121 is fixed on the beam frame 113. The cylinder body of the opening and closing locking cylinder 123 is hinged to the opening and closing seat 121. The piston rod of the opening and closing locking cylinder 123 is hinged to one end of the Y-shaped shift fork 122. The Y-shaped shift fork 122 is located at the bottom of the opening and closing locking cylinder 123, and the Y-shaped shift fork 122 is rotatably mounted on the opening and closing seat 121 through a pin. The shift rod of the Y-shaped shift fork 122 cooperates with the buckle plate 361 of the buckle 36. When the piston rod of the opening and closing locking cylinder 123 extends or retracts, it can drive the Y-shaped shift fork 122 to rotate, and then the buckle plate 361 is lifted, thereby causing the end plate 33 of the mold box 3 to disengage from the side plate 34 and the bottom plate 32, and to be able to flip outward.

[0029] Reference Figure 2 and Figure 3 The box-opening component 13 includes a box-opening base 131, a box-opening arm 132, and a box-opening cylinder 133. The box-opening base 131 is fixed to the middle of the beam frame 113. The cylinder body of the box-opening cylinder 133 is hinged to the box-opening base 131. The piston rod of the box-opening cylinder 133 is hinged to one end of the box-opening arm 132. The box-opening arm 132 is located at the bottom of the box-opening cylinder 133. The middle part of the box-opening arm 132 is rotatably mounted on the box-opening base 131 via a pin. When the piston rod of the box-opening cylinder 133 extends or retracts, it can drive the box-opening arm 132 to rotate. When the opening and closing locking component 12 lifts the buckle plate 361 of the buckle 36, so that the end plate 33 is in a flip-able movable state, the piston rod of the box-opening cylinder 133 extends, driving the box-opening arm 132 to flip, so that the box-opening arm 132 abuts against the inner wall of the end plate 33, thereby flipping the end plate 33 of the mold box 3 outward and opening it.

[0030] Reference Figure 7 The mold closing mechanism 2 is located between the two legs 112 at the bottom of the mold opening support 11. The mold closing mechanism 2 includes a mold closing base 21, a mold closing pressure arm 22, and a mold closing cylinder 23. One end of the mold closing pressure arm 22 is hinged to the mold closing base 21 by a pin, and the mold closing pressure arm 22 can rotate around the mold closing base 21. One end of the mold closing cylinder 23 is hinged to the mold closing base 21, and the other end is hinged to the mold closing pressure arm 22. When the piston rod of the mold closing cylinder 23 extends or retracts, it can drive the mold closing pressure arm 22 to rotate.

[0031] When in use, the mold closing mechanism 2 is located outside the end plate 33 of the mold box 3. When the end plate 33 is flipped open, the outer wall of the end plate 33 presses on the mold closing pressure arm 22. If mold closing is required, the mold closing cylinder 23 extends and drives the mold closing pressure arm 22 to flip closer to the mold box 3. Then the mold closing pressure arm 22 drives the end plate 33 to flip in the closing direction. After that, the opening and closing locking component 12 of the mold opening mechanism 1 is activated, and the buckle 36 is re-locked through the Y-shaped fork 122 to complete the mold closing operation.

[0032] A roller 24 is rotatably mounted on the end of the mold closing arm 22 away from the mold closing base 21. The outer circumference of the roller 24 is covered with a rubber ring. When the mold closing arm 22 drives the end plate 33 to close and flip, the mold closing arm 22 flexibly abuts against the outer wall of the end plate 33 through the roller 24, reducing the friction between the mold closing arm 22 and the end plate 33 and preventing scratches on the outer wall of the end plate 33, thus playing a protective role.

[0033] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A precast concrete guardrail mold box opening and closing device, characterized in that: It includes a mold opening mechanism (1) and a mold closing mechanism (2); the mold opening mechanism (1) and the mold closing mechanism (2) are located at both ends of the mold box (3), and end plates (33) are hinged to both ends of the mold box (3). The mold opening mechanism (1) and the mold closing mechanism (2) automatically open and close the end plates (33) on the mold box (3); the end plates (33) of the mold box (3) are connected to the side plates (34) and the bottom plate (32) of the mold box (3) through buckles (36); The mold opening mechanism (1) includes a mold opening bracket (11) and an opening and closing locking component (12) and a box opening component (13) disposed on the mold opening bracket (11); the opening and closing locking component (12) includes an opening and closing seat (121), a Y-shaped fork (122) and an opening and closing locking cylinder (123), the opening and closing seat (121) is disposed on the mold opening bracket (11), and the cylinder body of the opening and closing locking cylinder (123) is hinged to the opening and closing seat (121). 1) The piston rod of the opening and closing lock cylinder (123) is hinged to one end of the Y-shaped fork (122). The Y-shaped fork (122) is rotatably mounted on the opening and closing seat (121). The lever of the Y-shaped fork (122) cooperates with the buckle (36) on the mold box (3). When the piston rod of the opening and closing lock cylinder (123) extends and retracts to drive the Y-shaped fork (122) to rotate, the buckle (36) on the mold box (3) can be opened or closed. The box-opening component (13) includes a box-opening base (131), a box-opening arm (132), and a box-opening cylinder (133). The box-opening base (131) is fixed on the mold-opening bracket (11). The cylinder body of the box-opening cylinder (133) is hinged on the box-opening base (131). The piston rod of the box-opening cylinder (133) is hinged to one end of the box-opening arm (132). The middle part of the box-opening arm (132) is rotatably mounted on the box-opening base (131). The box-opening arm (132) is located inside the end plate (33) of the mold box (3). When the piston rod of the box-opening cylinder (133) extends and retracts, it drives the box-opening arm (132) to rotate. The box-opening arm (132) abuts against the inner wall of the end plate (33), driving the end plate (33) to flip outward and open.

2. The precast concrete guardrail mold box opening and closing device according to claim 1, characterized in that: The mold opening support (11) includes a crossbeam (111) and support legs (112) vertically fixed at the bottom of both ends of the crossbeam (111); a beam frame (113) is provided below the crossbeam (111), and a beam frame lifting cylinder (114) is fixed on the crossbeam (111). The piston rod of the beam frame lifting cylinder (114) is fixedly connected to the beam frame (113) to drive the beam frame (113) to move up and down; the box opening seat (131) of the box opening component (13) and the opening and closing seat (121) of the opening and closing lock component (12) are both fixed on the beam frame (113).

3. The precast concrete guardrail mold box opening and closing device according to claim 2, characterized in that: Guide columns (115) are fixed at both ends of the beam frame (113), and the end of the guide column (115) away from the beam frame (113) slides through the crossbeam (111).

4. A precast concrete guardrail mold box opening and closing device according to any one of claims 1-3, characterized in that: The mold closing mechanism (2) is located between the two legs (112) at the bottom of the mold opening bracket (11). The mold closing mechanism (2) is located outside the end plate (33) of the mold box (3). The mold closing mechanism (2) includes a mold closing base (21), a mold closing pressure arm (22), and a mold closing cylinder (23). One end of the mold closing pressure arm (22) is hinged to the mold closing base (21), and then the mold closing pressure arm (22) can rotate around the mold closing base (21). One end of the mold closing cylinder (23) is hinged to the mold closing base (21), and the other end is hinged to the mold closing pressure arm (22). When the piston rod of the mold closing cylinder (23) extends and retracts, it drives the mold closing pressure arm (22) to rotate, thereby causing the end plate (33) of the mold box (3) to rotate in the closing direction.

5. The precast concrete guardrail mold box opening and closing device according to claim 4, characterized in that: The mold clamping arm (22) has a roller (24) rotatably mounted on the end away from the mold clamping base (21). The roller (24) is covered with a rubber ring. When the mold clamping arm (22) drives the end plate (33) to close and flip, the mold clamping arm (22) abuts against the outer wall of the end plate (33) through the roller (24).

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