Automatic mold opening and closing device for tunnel segment mold

Abstract

The utility model discloses an automatic mold opening and closing device for a tunnel segment mold, relates to the technical field of shield segment molds, and aims to solve the technical problems that the mold closing and opening operation of a current mold consumes more time, the labor intensity of workers is higher, and the production efficiency of tunnel segments is influenced. Comprising a mold body and a mold opening and closing mechanism arranged on the mold body, the mold body comprises a base and mounting plates symmetrically arranged on the base, a bottom mold is arranged at the upper end of the base, rotating plates are rotationally mounted at the front end and the rear end of the bottom mold, and an upper mold plate is rotationally mounted between the mounting plates; the mold opening and closing mechanism comprises hydraulic equipment arranged on the base, and a limiting frame is installed at the tail end of a hydraulic rod of the hydraulic equipment. The device has the advantages that the opening and closing actions of the end mold plate, the side mold and the upper mold plate can be automatically completed, the operation time is greatly shortened, tedious manual fixing part dismounting and mounting are not needed, the labor intensity is remarkably reduced, and the production efficiency of tunnel segments is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of shield tunnel segment mold technology, and more specifically, to an automatic opening and closing device for tunnel segment molds. Background Technology

[0002] Tunnel segments are the permanent lining structure of shield tunnels and an essential component of the tunnel system. They are mostly precast reinforced concrete, possessing high strength and high impermeability. Connected into rings with bolts, they can withstand soil pressure, groundwater pressure, and surface loads. During construction, the segments are assembled sequentially by an assembly machine to form a continuous tunnel lining. As the tunnel's "armor," the segments not only ensure structural stability and prevent leakage but also reduce later maintenance costs, guaranteeing long-term safe operation of the tunnel. They play a crucial role in the construction of underground engineering projects such as subways and river-crossing tunnels.

[0003] Currently, when tunnel segment molds are being used, workers need to install a large number of bolts to gather and secure the side, end, and top mold plates. This process also requires the use of pins and other structural components. Furthermore, the bolts and other fasteners need to be disassembled when the mold is opened. This not only makes the mold-closing and opening operations time-consuming but also increases the labor intensity for workers, thus affecting the production efficiency of tunnel segments. Therefore, we propose an automatic mold-closing and opening device for tunnel segment molds. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide an automatic mold opening and closing device for tunnel segment molds, so as to solve the technical problem that the current mold closing and opening operations are time-consuming, and also cause high labor intensity for workers, thus affecting the production efficiency of tunnel segments.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an automatic mold opening and closing device for tunnel segment molds, comprising a mold body and an opening and closing mechanism disposed on the mold body. The mold body includes a base and mounting plates symmetrically disposed on the base. A bottom mold is disposed on the upper end of the base. Rotating plates are rotatably mounted on the front and rear ends of the bottom mold. A side mold is disposed at the end of the rotating plate. A triangular block is disposed at the front end of the rotating plate. An upper mold plate is rotatably mounted between the mounting plates. The opening and closing mechanism includes a hydraulic device disposed on the base. A limit frame is installed at the end of the hydraulic rod of the hydraulic device. The limit frame is located outside the bottom mold.

[0006] Preferably, the upper template includes an upper mold part and an opening and closing mold part, the axis of rotation of the upper template is between the upper mold part and the opening and closing mold part, and limit grooves are provided on both sides of the opening and closing mold part, and limit sliders are slidably installed in the limit grooves.

[0007] Preferably, the limiting frame includes two side mold limiting parts and two end mold mounting frames, the two side mold limiting parts and the two end mold mounting frames form the limiting frame into a rectangle, and an end template is installed on the upper end of the end mold mounting frame.

[0008] Preferably, the inner wall of the side mold limiting part is provided with a beveled surface, the bevel angle of which is adapted to the bevel angle of the front end of the triangular block, and a steel wire rope is provided on the outer surface of the side mold limiting part, the end of which is connected to the upper end of the triangular block.

[0009] Preferably, the end mold mounting bracket includes a first bending portion and a second bending portion from both ends toward the middle. The first bending portion is bent at the end of the side mold limiting portion and is bent downwards. The second bending portion is bent at a 90-degree angle in the horizontal direction.

[0010] Preferably, the outer surface of the end mold mounting bracket is symmetrically provided with an integrally formed upper mold limiting part, the end of the upper mold limiting part is bent upward at ninety degrees, the upper mold limiting part is located between the mounting plates, and the upper mold limiting part is rotatably connected to the limiting slider.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model, through the design of a limiting frame structure, allows the hydraulic rod to push the limiting frame upward during mold closing, simultaneously completing the mold closing action of the end template, side template, and upper template. During mold opening, the limiting frame descends, and the components automatically separate, greatly shortening the mold opening and closing time, significantly improving the production efficiency of tunnel segments, eliminating the tedious operation of traditional manual installation and disassembly of bolts and pins, reducing the labor intensity of workers, and solving the problem that the current mold closing and opening operations are time-consuming and cause high labor intensity for workers, thus affecting the production efficiency of tunnel segments.

[0013] 2. This utility model also designs a side mold limiting part, a triangular block, an upper mold limiting part, and an opening and closing mold part. The inclined surface angle of the inclined part is adapted to the inclined surface angle of the front end of the triangular block. Utilizing the pressure when the limiting frame rises, the inclined part can squeeze the triangular block of the side mold, causing the side mold to rotate towards the bottom mold. When the inclined part is in contact with the triangular block at the front end of the side mold, the inclined part can limit the triangular block, allowing the side mold and the bottom mold to close. The upper mold plate slides in the limiting groove through the limiting slider, and together with the function of the upper mold limiting part, it realizes the rotation opening and closing of the mold. The operation process is simple and easy to control, and there is no need to install or disassemble bolts, pins, or other fixing parts, which can effectively improve the production efficiency of tunnel segments. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of one usage state of the present invention;

[0015] Figure 2 This is a schematic diagram illustrating another usage state of the present invention;

[0016] Figure 3 This is a schematic diagram of the mold body structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the mold opening and closing mechanism of this utility model.

[0018] Explanation of the numbers in the diagram: 100, mold body; 101, base; 102, mounting plate; 103, bottom mold; 104, upper template; 1041, upper mold section; 1042, mold opening and closing section; 1043, limiting slide; 1044, limiting slider; 105, side mold; 106, rotating plate; 107, triangular block; 108, end template; 200, mold opening and closing mechanism; 201, hydraulic equipment; 202, limiting frame; 203, side mold limiting section; 2031, inclined section; 2032, wire rope; 204, end mold mounting frame; 2041, first bending section; 2042, second bending section; 205, upper mold limiting section. Detailed Implementation

[0019] like Figures 1 to 4 As shown, this utility model relates to an automatic mold opening and closing device for tunnel segment molds, including a mold body 100 and an opening and closing mechanism 200 provided on the mold body 100. The mold body 100 includes a base 101 and mounting plates 102 symmetrically arranged on the base 101. A bottom mold 103 is provided at the upper end of the base 101. Rotating plates 106 are rotatably installed at the front and rear ends of the bottom mold 103. A side mold 105 is provided at the end of the rotating plate 106. A triangular block 107 is provided at the front end of the rotating plate 106. An upper template 104 is rotatably installed between the mounting plates 102. The opening and closing mechanism 200 includes a hydraulic device 201 provided on the base 101. A limit frame 202 is installed at the end of the hydraulic rod of the hydraulic device 201. The limit frame 202 is located outside the bottom mold 103. The automatic opening and closing device for tunnel segment molds of this utility model can simultaneously complete the opening and closing actions of the end template 108, side template 105 and upper template 104 by driving the limit frame 202 through the hydraulic equipment 201. This greatly shortens the operation time, eliminates the need for manual disassembly and assembly of tedious fasteners, significantly reduces labor intensity, and effectively improves the production efficiency of tunnel segments.

[0020] Specifically, the upper mold plate 104 includes an upper mold portion 1041 and an opening / closing mold portion 1042. The axis of rotation of the upper mold plate 104 is between the upper mold portion 1041 and the opening / closing mold portion 1042. Limiting grooves 1043 are provided on both sides of the opening / closing mold portion 1042, and limiting sliders 1044 are slidably installed in the limiting grooves 1043. When the limiting frame 202 rises and falls, the limiting sliders 1044 slide and adjust their positions within the limiting grooves 1043, thereby allowing the upper mold plate 104 to rotate to perform mold opening and closing operations.

[0021] Furthermore, the limiting frame 202 includes two side mold limiting parts 203 and two end mold mounting frames 204. The two side mold limiting parts 203 and the two end mold mounting frames 204 form a rectangle for the limiting frame 202. An end template 108 is mounted on the upper end of the end mold mounting frame 204. The limiting frame 202 is located outside the bottom mold 103. When the limiting frame 202 rises, it can apply pressure to the upper template 104 and the side mold 105, causing the upper template 104 to rotate and the side mold 105 to rotate toward the bottom mold 103 to close with the bottom mold 103. At the same time, the end template 108 can rise to close with the bottom mold, so that the upper template 104, the side mold 105, the end template 108, and the bottom mold 103 can form the mold cavity of the tube segment.

[0022] It is worth noting that the inner wall of the side mold limiting part 203 is provided with a sloped part 2031, the slope angle of which matches the slope angle of the front end of the triangular block 107. A steel wire rope 2032 is provided on the outer surface of the side mold limiting part 203, and the end of the steel wire rope 2032 is connected to the upper end of the triangular block 107. When the limiting frame 202 rises, the sloped part 2031 can squeeze the triangular block 107 of the side mold 105, causing the side mold 105 to rotate towards the bottom mold 103. When the sloped part 2031 is in contact with the triangular block 107 at the front end of the side mold 105, the side mold 105 can close with the bottom mold 103. When the side mold 105 opens, the limiting frame 202 descends, the side mold 105 loses its limiting position, and at the same time, the steel wire rope 2032 can pull the side mold 105, causing the side mold 105 to rotate outward, thereby opening the side mold 105.

[0023] It is worth mentioning that the end mold mounting bracket 204 includes a first bending portion 2041 and a second bending portion 2042 from both ends toward the middle. The first bending portion 2041 is bent downwards at the end of the side mold limiting portion 203, and the second bending portion 2042 is bent horizontally at a 90-degree angle. The arrangement of the first bending portion 2041 and the second bending portion 2042 can lower the position of the end mold mounting bracket 204, which facilitates the setting of the end template 108. After the limiting bracket 202 is raised, the end template 108 can be mated with both ends of the bottom mold 103, allowing the end template 108 to be closed.

[0024] It is worth noting that an integrally formed upper mold limiting part 205 is symmetrically provided on the outer surface of the end mold mounting bracket 204. The end of the upper mold limiting part 205 is bent upward at ninety degrees. The upper mold limiting part 205 is located between the mounting plates 102 and is rotatably connected to the limiting slider 1044. When the limiting frame 202 rises, the upper mold limiting part 205 can apply upward pressure to the opening and closing mold part 1042. The limiting slider 1044 will slide and adjust its position in the limiting slide groove 1043, thereby causing the upper mold plate 104 to rotate, and then causing the upper mold part 1041 to rotate downward and close with the bottom mold 103. When the mold opens, the limiting frame 202 descends, the upper mold limiting part 205 applies downward pulling force to the opening and closing mold part 1042, and the limiting slider 1044 will slide and adjust its position in the limiting slide groove 1043, thereby causing the upper mold plate 104 to rotate, and then causing the upper mold part 1041 to rotate upward and open with the bottom mold 103.

[0025] Working Principle: This embodiment provides an automatic mold opening and closing device for tunnel segment molds. During mold closing, the hydraulic equipment 201 is activated, and the hydraulic rod pushes the limiting frame 202 upwards. At this time, the end template 108 on the end mold mounting frame 204 rises with the limiting frame 202 and aligns with both ends of the bottom mold 103, completing the mold closing of the end template 108. Simultaneously, the inclined surface 2031 of the inner wall of the side mold limiting part 203 contacts the front end of the triangular block 107. As the limiting frame 202 continues to rise, the inclined surface... Part 2031 applies pressure to the triangular block 107, causing the rotating plate 106 to drive the side mold 105 to rotate towards the bottom mold 103 until the side mold 105 and the bottom mold 103 are in contact, thus achieving the mold closing of the side mold 105. Regarding the upper mold plate 104, the upper mold limiting part 205 on the outer surface of the end mold mounting bracket 204 pushes the opening and closing mold part 1042 upwards, and the limiting slider 1044 slides and adjusts its position within the limiting groove 1043, causing the upper mold part 1041 of the upper mold plate 104 to rotate downwards and meet the bottom mold. When mold 103 is closed, the upper mold 104, side mold 105, end mold 108, and bottom mold 103 ultimately form the mold cavity for the tunnel segment. During mold opening, hydraulic equipment 201 controls the hydraulic rod to lower the limit frame 202, causing the end mold 108 to move downwards and disengage from the bottom mold 103, thus completing the opening of the end mold 108. The side mold limit part 203 then descends, and the side mold 105 loses its limit. At this time, the wire rope 2032 pulls the triangular block 107, causing the side mold 105 to rotate outwards, realizing the side mold... When the mold of 105 is opened, the upper mold limiting part 205 of the upper mold 104 descends, applying a downward pulling force to the mold opening and closing part 1042. The limiting slider 1044 slides in the limiting slide groove 1043, the upper mold 104 rotates, and the upper mold part 1041 rotates upward to separate from the bottom mold 103, thus completing the mold opening of the upper mold 104. This allows the mold opening and closing to be completed simply by the rising and falling of the limiting frame 202, without the need to install or disassemble bolts, pins, or other fasteners, which can effectively improve the production efficiency of tunnel segments.

[0026] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. An automatic mold opening and closing device for tunnel segment molds, characterized in that, The mold includes a mold body (100) and a mold opening and closing mechanism (200) provided on the mold body (100). The mold body (100) includes a base (101) and mounting plates (102) symmetrically arranged on the base (101). A bottom mold (103) is provided on the upper end of the base (101). Rotating plates (106) are rotatably installed at the front and rear ends of the bottom mold (103). A side mold (105) is provided at the end of the rotating plate (106). A triangular block (107) is provided at the front end of the rotating plate (106). An upper template (104) is rotatably installed between the mounting plates (102). The mold opening and closing mechanism (200) includes a hydraulic device (201) provided on the base (101). A limit frame (202) is installed at the end of the hydraulic rod of the hydraulic device (201). The limit frame (202) is located outside the bottom mold (103).

2. The automatic opening and closing device for tunnel segment molds according to claim 1, characterized in that, The upper template (104) includes an upper mold part (1041) and an opening and closing mold part (1042). The axis of rotation of the upper template (104) is between the upper mold part (1041) and the opening and closing mold part (1042). Limiting grooves (1043) are provided on both sides of the opening and closing mold part (1042). Limiting sliders (1044) are slidably installed in the limiting grooves (1043).

3. The automatic opening and closing device for tunnel segment molds according to claim 2, characterized in that, The limiting frame (202) includes two side mold limiting parts (203) and two end mold mounting frames (204). The two side mold limiting parts (203) and the two end mold mounting frames (204) form a rectangle for the limiting frame (202). An end template (108) is installed on the upper end of the end mold mounting frame (204).

4. The automatic opening and closing device for tunnel segment molds according to claim 3, characterized in that, The inner wall of the side mold limiting part (203) is provided with a beveled part (2031), the bevel angle of the beveled part (2031) is adapted to the bevel angle of the front end of the triangular block (107), and a steel wire rope (2032) is provided on the outer surface of the side mold limiting part (203), the end of the steel wire rope (2032) is connected to the upper end of the triangular block (107).

5. The automatic opening and closing device for tunnel segment molds according to claim 4, characterized in that, The end mold mounting bracket (204) includes a first bending portion (2041) and a second bending portion (2042) from both ends toward the middle. The first bending portion (2041) is bent at the end of the side mold limiting portion (203). The first bending portion (2041) is bent downwards, and the second bending portion (2042) is bent at a 90-degree angle in the horizontal direction.

6. The automatic opening and closing device for tunnel segment molds according to claim 5, characterized in that, The outer surface of the end mold mounting bracket (204) is symmetrically provided with an integrally formed upper mold limiting part (205). The end of the upper mold limiting part (205) is bent upward at ninety degrees. The upper mold limiting part (205) is located between the mounting plates (102). The upper mold limiting part (205) is rotatably connected to the limiting slider (1044).

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