A prefabricated lining structure manufacturing mold

Abstract

The application discloses a prefabricated lining structure manufacturing mold, which comprises a mold base, an arc-shaped bottom mold, a width-adjusting end mold device, a height-adjusting side mold device and a top mold covering device are arranged on the mold base; the width-adjusting end mold device comprises an end mold assembly and an end mold pushing device, the end mold assembly comprises an end mold base block and an end mold height-increasing block, and an end mold fixing device is arranged between the end mold base block and the end mold height-increasing block; the height-adjusting side mold device comprises a side mold assembly and a side mold pushing device, the side mold assembly comprises a side mold base block and a side mold height-increasing block, and a side mold fixing device is arranged between the side mold base block and the side mold height-increasing block; the top mold covering device comprises a mold top mold and a top mold lifting device for driving the mold top mold to perform lifting movement; the application can adapt to diversified size requirements in different engineering scenes, greatly simplifies the assembly and adjustment process of the mold, and improves production efficiency and product quality.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tunnel lining construction, in particular to a prefabricated lining structure manufacturing mold. BACKGROUND

[0002] Prefabricated lining structures are widely used in tunnels, underground pipe galleries, water conservancy projects and other fields due to their high construction efficiency and controllable quality. However, as engineering demands become increasingly diverse and complex, the size adaptability and assembly adjustment convenience of molds, which are key tools for producing prefabricated components, have become important factors restricting production efficiency and product quality. In actual engineering applications, traditional molds have significant shortcomings in size adaptability and assembly adjustment.

[0003] For example, the cement prefabricated panel mold for farmland channel lining described in patent number CN201120355936.8 uses a fixed size design and is only suitable for producing farmland channel lining panels of a specific size. When engineering demands change and different sizes or shapes of lining panels need to be produced, this mold cannot meet the requirements and a new mold must be designed and manufactured, which not only increases production costs but also prolongs the production cycle.

[0004] Similarly, the deformable prefabricated mold for the assembled structure of an operating diseased tunnel proposed in patent number CN201820842952.1 is innovative in terms of mold deformation but is still cumbersome in terms of size adjustment. This mold produces lining segments of different sizes by replacing side molds and adjusting end molds. However, the replacement process of side molds and end molds is complex, requiring the disassembly and reinstallation of multiple components, which is not only tedious but also prone to mold precision decline due to component fitting errors, thereby affecting the quality of lining segments. In addition, frequent component replacement increases mold maintenance costs and downtime, reducing overall production efficiency.

[0005] To address the above problems, the present application proposes a new prefabricated lining structure manufacturing mold. This mold allows flexible adjustment of mold size, easily adapts to diverse size requirements in different engineering scenarios, greatly simplifies the assembly and adjustment process of the mold, and improves production efficiency and product quality. The mold can quickly and accurately adjust to the required size according to actual engineering requirements without frequent mold or component replacement, thereby significantly reducing production costs and construction period while ensuring product quality. SUMMARY

[0006] The present application aims to solve the problem of significant shortcomings in size adaptability and assembly adjustment of traditional molds in the prior art.

[0007] To solve the above problems, the application provides a prefabricated lining structure manufacturing mold, which comprises:

[0008] A mold base, wherein an arc-shaped bottom mold, width-adjusting end mold device arranged at both ends of the arc-shaped bottom mold, height-adjusting side mold device arranged at both sides of the arc-shaped bottom mold, and a top mold covering device covering the arc-shaped bottom mold are arranged on the mold base.

[0009] The width-adjusting end mold device comprises an end mold assembly and an end mold pushing device for sliding the end mold assembly and the pushing assembly relative to the arc-shaped bottom mold, the end mold assembly comprises an end mold base block closely attached to the arc-shaped bottom mold and a plurality of end mold heightening blocks inserted into the end mold base block, and an end mold fixing device is arranged between the end mold base block and the end mold heightening block.

[0010] The height-adjusting side mold device comprises a side mold assembly and a side mold pushing device for driving the side mold assembly to abut against the arc-shaped bottom mold and the end mold assembly, the side mold assembly comprises a side mold base block closely attached to the arc-shaped bottom mold and the end mold base block, and a plurality of side mold heightening blocks inserted into the side mold base block, and a side mold fixing device is arranged between the side mold base block and the side mold heightening block.

[0011] The top mold covering device comprises a mold top mold for covering the arc-shaped bottom mold, the end mold assembly and the side mold assembly, and a top mold lifting device for driving the mold top mold to move up and down.

[0012] Preferably, an end mold insertion slot is formed in the length direction above the end mold base block, a plurality of end mold tooth grooves are formed on one side of the insertion slot, an end mold insertion block corresponding to the end mold insertion slot is arranged at the lower end of the end mold heightening block, and an end mold convex tooth corresponding to the end mold tooth groove is arranged at the lower end of the end mold heightening block, and the end mold base block and the end mold heightening block are connected by the end mold insertion slot, the end mold insertion block, the end mold tooth groove and the end mold convex tooth.

[0013] Preferably, the end mold fixing device comprises an end mold fixing table arranged on the end mold base block, an end mold fixing groove is arranged on the end mold fixing table, an end mold fixing convex strip inserted into the end mold fixing groove is arranged on the end mold heightening block, and an end mold fixing bolt is arranged between the end mold fixing table and the end mold fixing convex strip.

[0014] Preferably, the side mold base block is arranged in an arc shape corresponding to the arc-shaped bottom mold, and the length corresponds to the maximum distance between the end mold base blocks at both ends of the arc-shaped bottom mold, a side mold insertion slot is arranged on the side mold base block in the arc direction, a plurality of side mold tooth grooves are formed on one side of the side mold insertion slot, a side mold insertion block corresponding to the side mold insertion slot is arranged at the lower end of the side mold heightening block, and a side mold convex tooth corresponding to the side mold tooth groove is arranged at the lower end of the side mold heightening block, and the side mold base block and the side mold heightening block are connected by the side mold insertion slot, the side mold insertion block, the side mold tooth groove and the side mold convex tooth.

[0015] Preferably, the side mold tooth groove and the side mold convex tooth are both arranged in a semicircular shape.

[0016] As preferably, the side mold fixing device comprises a side mold fixing table arranged on the side mold base block, a side mold fixing groove is arranged on the side mold fixing table, a side mold fixing convex strip is arranged on the side mold heightening block to plug the side mold fixing groove, and a side mold fixing bolt is arranged between the side mold fixing table and the side mold fixing convex strip.

[0017] As preferably, a pouring opening is arranged on the mold top mold.

[0018] As preferably, the top mold covering device comprises a support bracket arranged on the mold base, and the top mold lifting device is arranged on the support bracket.

[0019] As preferably, an end mold sealing strip is arranged on both sides of the end mold assembly abutting against the side mold assembly, on the bottom of the abutting arc-shaped bottom mold and on the top of the abutting mold top mold, a side mold sealing strip is arranged on the top of the side mold assembly to abut against the mold top mold, and a bottom mold sealing strip is arranged on both sides of the arc-shaped bottom mold to abut against the side mold assembly.

[0020] As preferably, the end mold pushing device comprises a servo hydraulic cylinder and an arc-shaped pushing telescopic rod group driven by the servo hydraulic cylinder, one end of the arc-shaped pushing telescopic rod group is connected to the end mold base block, and the end mold pushing device drives the arc-shaped pushing telescopic rod group to push the end mold assembly to slide relative to the arc-shaped bottom mold through the servo hydraulic cylinder.

[0021] The present application has the following beneficial effects:

[0022] In the present application, the width-adjustable end mold device adjusts the position of the end mold assembly relative to the arc-shaped bottom mold through the end mold pushing device to achieve width adjustment, and the height-adjustable side mold device drives the side mold assembly to abut against the arc-shaped bottom mold and the end mold assembly through the side mold pushing device to achieve height adjustment. This design enables the mold to adapt to the production requirements of prefabricated assembly type lining structures of different sizes and shapes, greatly improves the versatility and flexibility of the mold, and reduces the cost and time of frequent mold replacement due to different project requirements.

[0023] Both the end mold assembly and the side mold assembly adopt the design mode of base block and heightening block plugging. The end mold base block and the side mold base block serve as the basic module, can quickly and conveniently change the overall height of the mold by plugging different numbers and specifications of the end mold heightening block and the side mold heightening block, and are stably connected through the end mold fixing device and the side mold fixing device, further enhancing the adaptation ability of the mold to different specifications of products.

[0024] The top mold covering device drives the mold top mold to lift through the top mold lifting device, which facilitates accurate covering of the top mold on the arc-shaped bottom mold, the end mold assembly and the side mold assembly before injection molding, and facilitates quick lifting of the top mold after injection molding, so as to facilitate taking out of the molded product, and the operation is simple and fast, improving the coherence and efficiency of the production process. BRIEF DESCRIPTION OF DRAWINGS

[0025] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application. The detailed description of the application refers to the accompanying drawings.

[0026] In the drawings:

[0027] Figure 1 Schematic diagram of manufacturing mold for prefabricated lining structure

[0028] Figure 2 Schematic diagram of manufacturing mold for prefabricated lining structure

[0029] Figure 3 Schematic diagram of manufacturing mold for prefabricated lining structure Figure 1

[0030] Figure 4 Schematic diagram of manufacturing mold for prefabricated lining structure Figure 2

[0031] Figure 5 Schematic diagram of end mold assembly

[0032] Figure 6 Schematic diagram of side mold assembly

[0033] In the drawings: 1, mold base; 2, arc-shaped bottom mold; 3, width-adjusting end mold device; 301, end mold assembly; 3011, end mold base block; 3012, end mold plug-in slot; 3013, end mold tooth groove; 3014, end mold fixing table; 3015, end mold fixing groove; 302, end mold heightening block; 3021, end mold plug-in block; 3022, end mold convex tooth; 3023, end mold fixing convex strip; 303, end mold pushing device; 3031, servo hydraulic cylinder; 3032, arc-shaped pushing telescopic rod group; 304, end mold fixing device; 4, height-adjusting side mold device; 401, side mold assembly; 4011, side mold base block; 4012, side mold plug-in slot; 4013, side mold tooth groove; 4014, side mold fixing table; 4015, side mold fixing groove; 402, side mold heightening block; 4021, side mold plug-in block; 4022, side mold convex tooth; 4023, side mold fixing convex strip; 403, side mold pushing device; 404, side mold fixing device; 5, top mold covering device; 501, mold top mold; 5011, pouring opening; 502, top mold lifting device; 503, support bracket. DETAILED DESCRIPTION

[0034] The technical solutions of the present application will be described below in conjunction with the drawings of the present application. The described embodiments are only a part of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.​​

[0035] As Figures 1 to 6 shown, the present application provides a prefabricated lining structure manufacturing mold, comprising a mold base 1, an arc-shaped bottom die 2 is arranged on the mold base 1, a width-adjusting end die device 3 is arranged at both ends of the arc-shaped bottom die 2 respectively, a height-adjusting side die device 4 is arranged at both sides of the arc-shaped bottom die 2, and a top die covering device 5 is arranged on the arc-shaped bottom die 2;

[0036] The width-adjusting end die device 3 comprises an end die assembly 301 and an end die pushing device 303 for sliding the end die assembly 301 relative to the arc-shaped bottom die 2, the end die assembly 301 comprises an end die base block 3011 closely attached to the arc-shaped bottom die 2 and a plurality of end die heightening blocks 302 inserted into the end die base block 3011, and an end die fixing device 304 is arranged between the end die base block 3011 and the end die heightening block 302;

[0037] The height-adjusting side die device 4 comprises a side die assembly 401 and a side die pushing device 403 for driving the side die assembly 401 to abut against the arc-shaped bottom die 2 and the end die assembly 301, the side die assembly 401 comprises a side die base block 4011 closely attached to the arc-shaped bottom die 2 and the end die base block 3011, and a plurality of side die heightening blocks 402 inserted into the side die base block 4011, and a side die fixing device 404 is arranged between the side die base block 4011 and the side die heightening block 402;

[0038] The top die covering device 5 comprises a mold top die 501 for covering the arc-shaped bottom die 2, the end die assembly 301 and the side die assembly 401, and a top die lifting device 502 for driving the mold top die 501 to move up and down.

[0039] The prefabricated lining structure manufacturing mold is a highly integrated and adjustable forming equipment, mainly composed of a mold base 1, an arc-shaped bottom die 2, a width-adjusting end die device 3, a height-adjusting side die device 4 and a top die covering device 5. The mold base 1 is a basic load-bearing component of the entire mold, which is welded by high-strength steel and has sufficient rigidity and stability. The bottom of the mold base 1 is provided with a plurality of anchor bolt mounting holes, which are firmly connected with the ground through anchor bolts, can effectively resist external forces generated by concrete impact and vibration during the injection molding process, ensure the position stability of the mold during the production process, and avoid affecting the size accuracy of the prefabricated lining structure due to the displacement of the mold.

[0040] In this embodiment, the arc-shaped bottom mold 2 is precisely designed according to the bottom shape of the precast lining structure. Its curvature is determined through three-dimensional modeling and numerical simulation analysis to ensure complete consistency with the curvature of the final product. The surface of the arc-shaped bottom mold 2 is finely polished, with the surface roughness controlled within a very small range to reduce the friction between the concrete and the mold, facilitating demolding and improving the surface quality of the precast lining structure. The arc-shaped bottom mold 2 is fixed to the mold base 1 with bolts, and its installation position is precisely adjustable to ensure the matching accuracy with the width adjustment end mold device 3 and the height adjustment side mold device 4.

[0041] The width-adjusting end mold device 3 and the height-adjusting side mold device 4 are used to adjust the width and height of the mold, respectively, to adapt to the production needs of precast lining structures of different specifications. The design of these two devices fully considers the versatility and flexibility of the mold. Through modular design, components of different specifications can be quickly replaced, shortening the mold adjustment time and improving production efficiency.

[0042] The top mold covering device 5 is used to close the mold, forming a complete molding space, and to inject concrete and other materials into the mold through the pouring port 5011 to complete the molding process of the lining structure. The design of the top mold covering device 5 emphasizes sealing and ease of operation, ensuring that concrete does not leak during the injection molding process, while also facilitating the opening and closing of the mold.

[0043] like Figure 4 and Figure 5 As shown, in this embodiment, an end mold insertion groove 3012 is provided above the end mold base block 3011 along the length direction, and a plurality of end mold tooth grooves 3013 are provided on one side of the insertion groove. At the lower end of the end mold raising block 302, an end mold insertion block 3021 corresponding to the end mold insertion groove 3012 and an end mold protrusion 3022 corresponding to the end mold tooth groove 3013 are provided. The end mold base block 3011 and the end mold raising block 302 are connected by the end mold insertion groove 3012, the end mold insertion block 3021, the end mold tooth groove 3013 and the end mold protrusion 3022.

[0044] Specifically, the end mold base block 3011 is the basic component of the width-adjusting end mold device 3. Its shape closely matches the end shape of the arc-shaped bottom mold 2. It is cast from high-strength alloy steel and its hardness and wear resistance are improved through heat treatment. An end mold insertion groove 3012 is provided along the length direction above the end mold base block 3011. The dimensional accuracy of this insertion groove is strictly controlled, with depth and width tolerances within a very small range, providing precise positioning and a stable connection foundation for the installation of the end mold raising block 302. Several end mold tooth grooves 3013 are provided on one side of the insertion groove. The end mold tooth grooves 3013 are rectangular or trapezoidal in shape, and their angles and dimensions are optimized to cooperate with the end mold protrusions 3022 on the end mold raising block 302 to achieve a reliable mechanical connection.

[0045] The end mold height increasing block 302 is used to increase the height of the end mold assembly 301 to adapt to the production requirements of different height size prefabricated lining structures. The end mold height increasing block 302 is also made of high-strength alloy steel, and the lower end is provided with an end mold insertion block 3021 corresponding to the end mold insertion slot 3012 and an end mold convex tooth 3022 corresponding to the end mold tooth groove 3013. The size of the end mold insertion block 3021 is matched with the end mold insertion slot 3012, and after insertion, it can be tightly matched to prevent loosening during production. The shape and size of the end mold convex tooth 3022 are accurately matched with the end mold tooth groove 3013, and after embedding, it can withstand a large shear force and tension to ensure the stability of the connection between the end mold height increasing block 302 and the end mold base block 3011.

[0046] As shown in Figure 4 and Figure 5 In this embodiment, the end mold fixing device 304 includes an end mold fixing table 3014 arranged on the end mold base block 3011, an end mold fixing groove 3015 is arranged on the end mold fixing table 3014, an end mold fixing convex strip 3023 is arranged on the end mold height increasing block 302 to insert the end mold fixing groove 3015, and an end mold fixing bolt (not shown in the figure) is arranged between the end mold fixing table 3014 and the end mold fixing convex strip 3023.

[0047] Specifically, the end mold fixing device 304 is used to further fix the relative position between the end mold base block 3011 and the end mold height increasing block 302 to prevent relative movement due to vibration or external force during production. The end mold fixing device 304 includes an end mold fixing table 3014 arranged on the end mold base block 3011, which is fixed on the end mold base block 3011 by welding and has high strength and stability. An end mold fixing groove 3015 is arranged on the end mold fixing table 3014, and the size and shape of the end mold fixing groove 3015 are matched with the end mold fixing convex strip 3023 on the end mold height increasing block 302. An end mold fixing bolt is arranged between the end mold fixing table 3014 and the end mold fixing convex strip 3023, and the end mold fixing bolt is a high-strength bolt. By tightening the bolt, the end mold fixing convex strip 3023 is tightly embedded in the end mold fixing groove 3015 to achieve firm connection of the end mold base block 3011 and the end mold height increasing block 302.

[0048] As shown in Figure 2 and Figure 4 In this embodiment, the end mold pushing device 303 includes a servo hydraulic cylinder 3031 and an arc-shaped pushing telescopic rod group 3032 driven by the servo hydraulic cylinder 3031, and one end of the arc-shaped pushing telescopic rod group 3032 is connected to the end mold base block 3011. The end mold pushing device 303 drives the arc-shaped pushing telescopic rod group 3032 to push the end mold assembly 301 to slide relative to the arc-shaped bottom mold 2 through the servo hydraulic cylinder 3031.

[0049] Specifically, the end mold pushing device 303 includes a servo hydraulic cylinder 3031 and an arc-shaped pushing telescopic rod assembly 3032 driven by the servo hydraulic cylinder 3031. The servo hydraulic cylinder 3031, as a power source, features high output force and high control precision. It employs advanced hydraulic control technology, enabling precise control of the piston's extension and retraction amount and speed based on the input electrical signal. The servo hydraulic cylinder 3031 is bolted to the mold base 1, and its installation position is precisely calculated and adjusted to ensure that its pushing direction is consistent with the moving direction of the end mold assembly 301.

[0050] One end of the arc-shaped push-telescopic rod assembly 3032 is connected to the end mold base block 3011 via a pin. Its shape matches the curvature of the arc-shaped bottom mold 2. Made of high-strength alloy steel, it undergoes special heat treatment and surface treatment processes to improve its fatigue resistance and corrosion resistance. Driven by the servo hydraulic cylinder 3031, the arc-shaped push-telescopic rod assembly 3032 can smoothly extend and retract along the arc-shaped trajectory, thereby pushing the end mold assembly 301 to slide relative to the arc-shaped bottom mold 2. The design of the arc-shaped push-telescopic rod assembly 3032 makes the movement of the end mold assembly 301 more consistent with the shape of the arc-shaped bottom mold 2, reducing friction and jamming during movement, and improving the mold adjustment accuracy and production efficiency.

[0051] like Figure 4 and Figure 6 As shown, in this embodiment, the side mold base block 4011 is set to the arc shape corresponding to the arc-shaped bottom mold 2, and its length corresponds to the maximum distance between the end mold base blocks 3011 at both ends of the arc-shaped bottom mold 2. A side mold insertion groove 4012 is provided on the side mold base block 4011 along the arc direction. A plurality of side mold tooth grooves 4013 are opened on one side of the side mold insertion groove. A side mold insertion block 4021 corresponding to the side mold insertion groove 4012 and a side mold protrusion 4022 corresponding to the side mold tooth groove 4013 are provided at the lower end of the side mold raising block 402. The side mold base block 4011 and the side mold raising block 402 are connected by the side mold insertion groove 4012, the side mold insertion block 4021, the side mold tooth groove 4013 and the side mold protrusion 4022.

[0052] The side mold alveolar 4013 and the side mold protruding tooth 4022 are both set as semi-circular.

[0053] Specifically, the side mold base 4011 is arranged to correspond to the arc of the arc-shaped bottom mold 2, and the length corresponds to the maximum distance between the end mold bases 3011 at both ends of the arc-shaped bottom mold 2, so as to ensure that the side mold base 4011 can completely cover the side surface of the arc-shaped bottom mold 2 and tightly fit with the end mold assembly 301. The side mold base 4011 is welded by high-strength steel plates, and is internally provided with reinforcing ribs to improve the overall rigidity and anti-deformation capability. The side mold base 4011 is provided with a side mold insertion slot 4012 in the arc direction, and the size and shape of the side mold insertion slot 4012 are similar to those of the end mold insertion slot 3012, but are optimized and designed according to the characteristics of the side mold assembly 401. A plurality of side mold tooth grooves 4013 are formed on one side of the side mold insertion slot, and the side mold tooth grooves 4013 are also arranged in a semicircular shape. This shape design makes it easier for the side mold heightening block 402 to be aligned and embedded during the insertion process, reduces the installation difficulty, and also ensures the stability of the connection.

[0054] The side mold heightening block 402 is used to increase the height of the side mold assembly 401 to adapt to the production requirements of different height sizes of prefabricated lining structures. The side mold heightening block 402 is made of the same material as the side mold base 4011, and is provided with a side mold insertion block 4021 corresponding to the side mold insertion slot 4012 and a side mold convex tooth 4022 corresponding to the side mold tooth groove 4013 at the lower end. The size and shape of the side mold insertion block 4021 and the side mold convex tooth 4022 are accurately matched with the side mold insertion slot 4012 and the side mold tooth groove 4013, so as to ensure that the connection between the side mold heightening block 402 and the side mold base 4011 is firm and reliable.

[0055] As shown in Figure 3 , Figure 4 and Figure 6 , in the embodiment, the side mold fixing device 404 includes a side mold fixing table 4014 arranged on the side mold base 4011, the side mold fixing table 4014 is provided with a side mold fixing groove 4015, the side mold heightening block 402 is provided with a side mold fixing convex strip 4023 inserted into the side mold fixing groove 4015, and the side mold fixing bolt is arranged between the side mold fixing table 4014 and the side mold fixing convex strip 4023.

[0056] Specifically, the side mold fixing device 404 is used to fix the relative position between the side mold base block 4011 and the side mold raising block 402, preventing relative movement during production. The side mold fixing device 404 includes a side mold fixing platform 4014 disposed on the side mold base block 4011, which is fixed to the side mold base block 4011 by welding. A side mold fixing groove 4015 is provided on the side mold fixing platform 4014, the size and shape of which are adapted to the side mold fixing protrusion 4023 on the side mold raising block 402. A side mold fixing bolt passes between the side mold fixing platform 4014 and the side mold fixing protrusion 4023, and a firm connection between the side mold base block 4011 and the side mold raising block 402 is achieved by tightening the side mold fixing bolt.

[0057] In this embodiment, the side mold pushing device 403 is used to drive the side mold assembly 401 to abut against the arc-shaped bottom mold 2 and the end mold assembly 301, ensuring that the components of the mold fit tightly together during production and preventing concrete leakage. The structure and working principle of the side mold pushing device 403 are similar to those of the end mold pushing device 303. It also uses a servo hydraulic cylinder 3031 as a power source to drive the side mold assembly 401 to move by driving the corresponding telescopic rod group. The telescopic rod group of the side mold pushing device 403 is specially designed according to the shape and movement characteristics of the side mold assembly 401, which can ensure the stability and accuracy of the side mold assembly 401 during movement, and improve the sealing performance and production quality of the mold.

[0058] like Figure 1 and Figure 2 As shown, in this embodiment, a pouring port 5011 is provided on the mold top mold 501. The top mold covering device 5 includes a support bracket 503 provided on the mold base 1, and the top mold lifting device 502 is provided on the support bracket 503.

[0059] Specifically, the top mold 501 covers the arc-shaped bottom mold 2, the end mold assembly 301, and the side mold assembly 401, forming a complete molding space. The top mold 501 is made of high-strength, high-toughness steel plate, and its thickness is selected according to the size of the precast lining structure and production requirements. A pouring gate 5011 is provided on the top mold 501, and the position and size of the pouring gate 5011 are precisely designed according to the shape of the precast lining structure and production process requirements. Reinforcing ribs are provided around the pouring gate 5011 to improve the strength and rigidity of the pouring gate 5011 and prevent deformation due to concrete impact during injection molding.

[0060] The top die lifting device 502 is used to drive the lifting movement of the mold top die 501, so as to realize the opening and closing of the mold. The top die lifting device 502 is arranged on the support bracket 503, the support bracket 503 is welded by high-strength steel material, and has sufficient rigidity and stability. The support bracket 503 is fixed on the mold base 1 through bolts, and the installation position is accurately adjustable. The top die lifting device 502 can adopt a driving mode such as a hydraulic cylinder or an electric push rod, and in this scheme, a hydraulic cylinder is adopted. The hydraulic cylinder is fixed on the support bracket 503 through bolts, and the piston rod thereof is connected with the mold top die 501 through a connecting piece. The stable lifting of the mold top die 501 is realized by controlling the extension and retraction movement of the hydraulic cylinder. During the lifting process, the top die lifting device 502 can ensure the sealing performance between the mold top die 501 and the end die assembly 301 and the side die assembly 401, so as to prevent concrete from leaking.

[0061] In this embodiment (not shown in the figure), end die sealing strips are arranged on both sides of the end die assembly 301 abutting against the side die assembly 401, the bottom of the arc-shaped bottom die 2 and the top of the mold top die 501, a side die sealing strip abutting against the mold top die 501 is arranged on the top of the side die assembly 401, and bottom die sealing strips abutting against the side die assembly 401 are arranged on both sides of the arc-shaped bottom die 2.

[0062] Specifically, end die sealing strips are arranged on both sides of the end die assembly 301 abutting against the side die assembly 401, the bottom of the arc-shaped bottom die 2 and the top of the mold top die 501. The end die sealing strips are made of high-elastic and wear-resistant silicone rubber material, and the cross-sectional shape thereof is designed according to the characteristics of the sealing position, and is generally rectangular or trapezoidal. The end die sealing strips are fixed on the end die assembly 301 through adhesion or clamping groove, and when the end die assembly 301 abuts against the side die assembly 401, the arc-shaped bottom die 2 and the mold top die 501, the end die sealing strips can be elastically deformed to fill the gaps between the components, form a reliable sealing barrier, prevent concrete from leaking during the injection process, and ensure the surface quality and dimensional accuracy of the prefabricated lining structure.

[0063] A side die sealing strip abutting against the mold top die 501 is arranged on the top of the side die assembly 401, and the material and performance requirements of the side die sealing strip are the same as those of the end die sealing strip. The side die sealing strip is fixed on the side die assembly 401 through adhesion or clamping groove, and its function is to prevent concrete from leaking at the gap between the side die assembly 401 and the mold top die 501, and to ensure the sealing performance of the mold.

[0064] Bottom die sealing strips abutting against the side die assembly 401 are arranged on both sides of the arc-shaped bottom die 2, and the bottom die sealing strips are also made of high-elastic and wear-resistant silicone rubber material. The bottom die sealing strips are fixed on the arc-shaped bottom die 2 through adhesion or clamping groove, and can prevent concrete from leaking at the gap between the arc-shaped bottom die 2 and the side die assembly 401, and ensure the bottom quality of the prefabricated lining structure.

[0065] The present application aims at the production needs of different specifications of prefabricated lining structures. By designing the width-adjusting end mold device and the height-adjusting side mold device, the flexibility of the mold width and height is realized, the versatility and flexibility of the mold are improved, and the replacement time and cost of the mold are reduced. The end mold assembly and side mold assembly are designed with plug-in structure and fixing device, which makes the assembly and disassembly of the mold more convenient and efficient, and improves the production efficiency. The pouring opening design of the top mold covering device and the top mold lifting device realize the automatic opening and closing of the mold, and improve the automation degree of production. At the same time, by setting multiple sealing devices, concrete leakage is effectively prevented, and the surface quality and dimensional accuracy of the prefabricated lining structure are ensured. The overall design focuses on the cooperation accuracy and stability between components, and high-strength materials and advanced manufacturing processes are used to ensure reliable performance and long service life of the mold during long-term use.

[0066] The present application has many use scenarios, including but not limited to the following described scenarios:

[0067] In the tunnel construction of urban subway, light rail and other rail transit projects, a large number of prefabricated lining structures are needed to build the inner wall of the tunnel. The manufacturing mold can quickly adjust the width and height of the mold according to the size and shape requirements of different tunnel sections, produce lining structures that meet the design standards, and meet the needs of efficient and high-quality construction of rail transit construction.

[0068] As an important part of urban underground infrastructure, underground comprehensive pipe gallery needs to install various pipelines in its internal space. Prefabricated lining structures can be used for the construction of walls and roofs of pipe galleries. The flexibility and customizability of the mold can adapt to the construction needs of different specifications of pipe galleries, produce lining structures with accurate dimensions and reliable quality, and ensure the safe and stable operation of the pipe gallery.

[0069] In the construction of water diversion tunnels, drainage tunnels and other water conservancy projects, the strength, sealing performance and dimensional accuracy of the lining structure are required. The manufacturing mold can produce high-quality prefabricated lining structures through precise size adjustment and reliable sealing design, effectively prevent water leakage, and ensure the safety and durability of the water conservancy tunnel.

[0070] In the process of mining, the support of the roadway is crucial to the safety of the mine. The mold can produce suitable prefabricated lining structures according to the different cross-sectional shapes and sizes of the mine roadway, provide stable support for the roadway, improve the stability and safety of the roadway, and reduce the maintenance cost and workload of the roadway.

Claims

1. A manufacturing mold for a prefabricated assembled lining structure, characterized in that, include: The mold base includes an arc-shaped bottom mold, width-adjusting end mold devices at both ends of the arc-shaped bottom mold, height-adjusting side mold devices on both sides of the arc-shaped bottom mold, and a top mold covering device covering the arc-shaped bottom mold. The width-adjusting end mold device includes an end mold assembly and an end mold pushing device that slides relative to the arc-shaped bottom mold of the end mold assembly. The end mold assembly includes an end mold base block that is in close contact with the arc-shaped bottom mold and several end mold raising blocks that are inserted into the end mold base block. An end mold fixing device is provided between the end mold base block and the end mold raising blocks. The side mold raising device includes a side mold assembly and a side mold pushing device that drives the side mold assembly to abut against the arc-shaped bottom mold and the end mold assembly. The side mold assembly includes a side mold base block that can be tightly attached to the arc-shaped bottom mold and the end mold base block, and a number of side mold raising blocks that are inserted into the side mold base block. A side mold fixing device is provided between the side mold base block and the side mold raising blocks. The top mold covering device includes a mold top mold for covering the arc-shaped bottom mold, end mold assembly and side mold assembly, and a top mold lifting device for driving the mold top mold to move up and down; Among them, an end mold insertion groove is provided above the end mold base block along the length direction, and several end mold tooth grooves are provided on one side of the insertion groove. At the lower end of the end mold raising block, an end mold insertion block corresponding to the end mold insertion groove and an end mold protrusion corresponding to the end mold tooth groove are provided. The end mold base block and the end mold raising block are connected by the end mold insertion groove, the end mold insertion block, the end mold tooth groove and the end mold protrusion. The end mold fixing device includes an end mold fixing platform set on the end mold base block, an end mold fixing groove set on the end mold fixing platform, an end mold fixing protrusion set on the end mold raising block to insert into the end mold fixing groove, and an end mold fixing bolt passing through between the end mold fixing platform and the end mold fixing protrusion. The side mold base block is set to the arc shape corresponding to the arc-shaped bottom mold, and its length corresponds to the maximum distance between the end mold base blocks at both ends of the arc-shaped bottom mold. A side mold insertion groove is provided on the side mold base block along the arc direction. Several side mold tooth grooves are opened on one side of the side mold insertion groove. A side mold insertion block corresponding to the side mold insertion groove and a side mold protrusion corresponding to the side mold tooth groove are provided at the lower end of the side mold raising block. The side mold base block and the side mold raising block are connected by the side mold insertion groove, the side mold insertion block, the side mold tooth groove and the side mold protrusion. Both the alveolar bone and the convex tooth in the lateral model are designed as semicircles; The side mold fixing device includes a side mold fixing platform set on the side mold base block, a side mold fixing groove set on the side mold fixing platform, a side mold raising block set with a side mold fixing protrusion that inserts into the side mold fixing groove, and a side mold fixing bolt passing through between the side mold fixing platform and the side mold fixing protrusion.

2. The manufacturing mold for a prefabricated assembled lining structure according to claim 1, characterized in that, A pouring gate is provided on the top mold of the mold.

3. The manufacturing mold for a prefabricated assembled lining structure according to claim 1, characterized in that, The top mold covering device includes a support bracket set on the mold base, and the top mold lifting device is set on the support bracket.

4. The manufacturing mold for a prefabricated assembled lining structure according to claim 1, characterized in that, End mold sealing strips are provided on both sides of the end mold assembly that abut against the side mold assembly, on the bottom of the arc-shaped bottom mold, and on the top of the mold top mold. A side mold sealing strip that abuts against the mold top mold is provided on the top of the side mold assembly, and bottom mold sealing strips that abut against the side mold assembly are provided on both sides of the arc-shaped bottom mold.

5. A prefabricated assembled lining structure manufacturing mold according to claim 1, characterized in that, The end mold pushing device includes a servo hydraulic cylinder and an arc-shaped pushing telescopic rod assembly driven by the servo hydraulic cylinder. One end of the arc-shaped pushing telescopic rod assembly is connected to the end mold base block. The end mold pushing device drives the arc-shaped pushing telescopic rod assembly through the servo hydraulic cylinder to push the end mold assembly to slide relative to the arc-shaped bottom mold.

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