A rubber paving sheet for railway crossings and its production system
Patent Information
- Application Number
- CN202410497970.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-24
- Publication Date
- 2026-09-01
- Estimated Expiration
- 2044-04-24
AI Technical Summary
然而,由于部分区域的道口板下方会出现冒水的情况,由于混凝土板不具有防水能力,进而造成该片区域浸水的情况出现,致使车辆无法顺利通过
[0014]本发明由于采用了上述的结构,其与现有技术相比,所取得的技术进步在于:本发明采用混凝土材质制成基板本体,并在该基板本体的上端面和/或下端面上附着有端面橡胶层,该端面橡胶层不仅具有缓冲能力,而且也具有较佳的防水能力,其主要承受的力主要来源于车辆(非火车)的碾压,这样,在车辆的碾压下端面橡胶层发生弹性形变,进而避免基板本体集中受力而损坏;本发明所公开的生产系统中基板浇筑模具用于生产基板本体,混凝土浇筑在基板浇筑模具内并凝固成型,在基板本体养生完毕后,将基板本体转移至橡胶注胶模具内,之后将橡胶注入到橡胶注胶模具内,最终凝固成型并牢牢地依附在基板本体上。综上可知,本发明能够有效地提高道口板的缓冲能力,延长其使用寿命,并且使得道口板具有良好的防水能力,防止了出现冒水等情况,保障了车辆的顺利通过。
Smart Images

Figure CN118390347B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the technical field of railway crossing pavers, specifically, it relates to a railway crossing rubber paving paver and its production system. Background Technology
[0002] A railway crossing slab is a plate-like structure installed at the intersection of a railway and a highway (road) to ensure that the railway track surface is flush with the ground, allowing trains and motor vehicles to pass smoothly. Existing crossing slabs are generally made of metal or concrete slabs. However, due to the weak elasticity of metal and concrete slabs, they are prone to deformation or cracking under frequent traffic. Furthermore, metal slabs, being exposed to the elements for extended periods, suffer from corrosion, reducing their lifespan. Therefore, metal slabs have been phased out as crossing slabs. During the assembly of multiple crossing slabs, gaps exist between adjacent slabs, requiring the use of adhesive or rubber pads to seal the gaps and ensure continuity. However, in some areas, water may seep from beneath the crossing slabs. Since concrete slabs are not waterproof, this can lead to flooding, preventing vehicles from passing smoothly. Summary of the Invention
[0003] This invention provides a rubber paving slab and production system for railway crossings, which improves cushioning capacity, extends service life, and has waterproof capabilities to prevent water leakage and ensure the smooth passage of vehicles.
[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A railway crossing rubber paving slab includes a base plate body made of concrete, an end face rubber layer fixed on the upper and / or lower end face of the base plate body, a plurality of first connection holes spaced apart on the surface where the base plate body and the end face rubber layer are joined, and the end face rubber layer has a first connection post extending into the first connection hole.
[0005] Furthermore, a peripheral rubber layer is attached to the peripheral surface of the substrate body, and a plurality of second connection holes are formed at intervals on the surface where the substrate body and the peripheral rubber layer are bonded. The peripheral rubber layer has a second connection post extending into the second connection hole.
[0006] Furthermore, a buffer cavity is constructed within the peripheral rubber layer; the first connecting post and the second connecting post have the same structure, and the first connecting post is a cylindrical structure or a frustum-shaped structure; when the first connecting post is a frustum-shaped structure, the radial length of the first connecting post increases along the direction in which the first connecting post extends into the substrate body.
[0007] The present invention also discloses a production system for the above-mentioned railway crossing rubber paving, comprising a substrate casting mold and a rubber injection mold arranged in sequence. The substrate body cast by the substrate casting mold is cured and then placed into the rubber injection mold. The substrate casting mold includes multiple casting mold units arranged side by side. These casting mold units are all installed on a base plate and are connected to an air filling and exhaust pipe system.
[0008] Furthermore, the casting mold unit includes a casting mold body with two connecting edges symmetrically arranged at the lower end. Both connecting edges are detachably connected to the base plate. Multiple bottom wall inflatable rubber heads and multiple peripheral wall inflatable rubber heads are fixed on the bottom wall and peripheral wall of the casting mold body, respectively. An inflation and deflation chamber is constructed within the casting mold body. Each bottom wall inflatable rubber head and peripheral wall inflatable rubber head is connected to the inflation and deflation chamber, and the inflation and deflation chamber is connected to the inflation and deflation pipe system.
[0009] Furthermore, the inflation and deflation system includes an inflation and deflation main pipe with connecting joints, and each of the casting mold bodies has a connecting pipe communicating with the inflation and deflation chamber, and each of the connecting pipes is connected to the inflation and deflation main pipe.
[0010] Furthermore, the rubber injection mold includes a bottom molding mold with an injection chamber, a top injection mold is provided at the upper end of the bottom molding mold, and a scissor lift platform is installed at the lower end of the bottom molding mold.
[0011] Furthermore, the bottom molding mold includes a molding mold body whose lower end is connected to the scissor lift platform. The injection chamber is formed in the molding mold body. A limiting groove is provided on the upper end surface of the bottom wall of the molding mold body. The substrate body is placed in the injection chamber, and the lower end of the substrate body is adapted to the limiting groove. A limiting edge is constructed on the periphery of the upper end of the molding mold body. When the bottom molding mold is driven by the scissor lift platform to rise and cooperate with the top injection mold, the lower end of the top injection mold is adapted to the limiting edge, and an end face injection cavity is formed between the top injection mold and the substrate body.
[0012] Furthermore, a peripheral injection cavity is provided between the peripheral wall of the substrate body and the peripheral wall of the molding mold body. Multiple pairs of connection ports are provided on the peripheral wall of the molding mold body. The two connection ports constituting each connection port pair are symmetrically constructed on two opposite side walls of the molding mold body, and the connection ports communicate with the peripheral injection cavity. At least one pair of connection ports is fitted with a molding partition. One end of the molding partition passes through the peripheral injection cavity through the connection port pair, and the connection ports without molding partitions are sealed by a sealing member.
[0013] Furthermore, the molded partition includes a partition body with a medium cavity, the medium cavity extending along the length of the partition body to both ends of the partition body, and one end of the medium cavity penetrating the corresponding end of the partition body. A partition strip extending along the length of the partition body from its open end is provided in the medium cavity, and the medium cavity is divided by the partition strip into an interconnected inlet channel, a connecting channel, and an outlet channel. A fixed cover is detachably connected to the open end of the partition body, and an inlet pipe and an outlet pipe are constructed on the fixed cover. The inlet pipe and the outlet pipe are respectively connected to the inlet channel and the outlet channel, and a first control valve and a second control valve are respectively installed on the inlet pipe and the outlet pipe.
[0014] The technological advancements achieved by this invention compared to existing technologies, due to the aforementioned structure, lie in the following: The invention uses concrete to construct the base plate body, with an end-face rubber layer attached to the upper and / or lower end surfaces. This end-face rubber layer not only provides cushioning but also excellent waterproofing. The primary force it bears comes from the pressure of vehicles (not trains). Under vehicle pressure, the end-face rubber layer undergoes elastic deformation, thus preventing concentrated stress and damage to the base plate body. In the production system disclosed in this invention, a base plate casting mold is used to produce the base plate body. Concrete is poured into the base plate casting mold and solidifies. After the base plate body has cured, it is transferred to a rubber injection mold, into which rubber is then injected, finally solidifying and firmly adhering to the base plate body. In summary, this invention effectively improves the cushioning capacity of the level crossing plate, extends its service life, and provides excellent waterproofing, preventing water seepage and ensuring smooth vehicle passage. Attached Figure Description
[0015] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.
[0016] In the attached diagram: Figure 1 This is a cross-sectional view of a rubber paving plate at a railway crossing according to an embodiment of the present invention; Figure 2 This is a cross-sectional view of the structure of a rubber paving plate at a railway crossing according to another embodiment of the present invention; Figure 3 This is a schematic diagram of the substrate casting mold according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the casting mold unit in the substrate casting mold according to an embodiment of the present invention; Figure 5 This is a partial structural cross-sectional view of the casting mold unit in the substrate casting mold of an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the rubber injection mold according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of the bottom molding mold and the top injection mold cooperating in the rubber injection mold of an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of the top injection mold in the rubber injection mold of an embodiment of the present invention; Figure 9 for Figure 8 A schematic diagram of the structure shown from another angle; Figure 10 This is a schematic diagram of the structure of the substrate body placed in the bottom molding mold according to an embodiment of the present invention; Figure 11 This is a schematic diagram of the bottom forming mold in an embodiment of the present invention; Figure 12 This is a schematic diagram of the structure of the substrate body according to an embodiment of the present invention; Figure 13 This is a schematic diagram of the structure after the bottom molding mold and the sealing component are separated in an embodiment of the present invention; Figure 14 This is a side view of the structure of the molded partition according to an embodiment of the present invention.
[0017] Components labeled: 100-Baseboard body, 101-First connecting hole, 102-Second connecting hole, 200-End face rubber layer, 201-First connecting post, 202-Peripheral rubber layer, 203-Second connecting post, 204-Buffer cavity, 300-Base plate, 400-Casting mold unit, 401-Casting mold body, 402-Casting cavity, 403-Connecting edge, 404-Bottom wall inflation nozzle, 405-Peripheral wall inflation nozzle, 406-Inflation and de-inflation cavity, 500-Inflation and de-inflation main pipe, 501-Connecting pipe, 502-Connecting joint, 600-Bottom molding mold, 601-Molding mold body, 602-Limit 603 - Restriction edge, 604 - Connection port, 700 - Top injection mold, 701 - Top mounting base, 702 - Injection head, 703 - Connecting ear, 704 - Injection connector, 705 - Exhaust connector, 800 - Scissor lift platform, 900 - Molded partition, 901 - Partition body, 902 - Separator strip, 903 - Inlet channel, 904 - Outlet channel, 905 - Connecting channel, 906 - Fixed cover, 907 - Inlet pipe, 908 - First control valve, 909 - Outlet pipe, 910 - Second control valve, 1000 - Sealing component, 1001 - Plug body, 1002 - Connecting plate. Detailed Implementation
[0018] The preferred embodiments of the present invention will now be described with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustrative and explanatory purposes only and are not intended to limit the scope of the invention.
[0019] This invention discloses a rubber paving material for railway crossings, such as... Figure 1 , 2 As shown in Figure 12, the invention includes a substrate body 100 and an end-face rubber layer 200. The substrate body 100 is cast from concrete, and the end-face rubber layer 200 is fixed to the upper and / or lower end faces of the substrate body 100. A plurality of first connection holes 101 are formed at intervals on the surfaces where the substrate body 100 and the end-face rubber layer 200 are joined. The end-face rubber layer 200 has first connecting posts 201 extending into the first connecting holes 101. This invention improves the connection strength between the end-face rubber layer 200 and the substrate body 100 through the connection of the first connecting posts 201 and the first connecting holes 101. The working principle and advantages of this invention are as follows: This invention uses concrete to make a substrate body 100, and an end face rubber layer 200 is attached to the upper end face and / or lower end face of the substrate body 100. The end face rubber layer 200 not only has a buffering capacity, but also has a good waterproof capacity. The main force it bears mainly comes from the crushing of vehicles (not trains). In this way, under the crushing of vehicles, the end face rubber layer 200 undergoes elastic deformation, thereby avoiding the substrate body 100 from being damaged by concentrated force.
[0020] As a preferred embodiment of the present invention, such as Figure 1 , 2 As shown in Figure 12, a peripheral rubber layer 202 is attached to the peripheral surface of the substrate body 100. A plurality of second connecting holes 102 are formed at intervals on the surface where the substrate body 100 and the peripheral rubber layer 202 are bonded. The peripheral rubber layer 202 has second connecting posts 203 extending into the second connecting holes 102. In this embodiment, the connection strength between the peripheral rubber layer 202 and the substrate body 100 is improved through the connection of the second connecting posts 203 and the second connecting holes 102. Thus, during the assembly of adjacent substrate bodies 100, two corresponding peripheral rubber layers 202 contact and press together, replacing the sealant injection process and ensuring the sealing of the assembly point of the two substrate bodies 100. Simultaneously, when the substrate body 100 is subjected to force, the peripheral rubber layer 202 has a large elastic energy absorption capacity, thereby gradually absorbing external forces between adjacent substrate bodies 100, thus improving the service life of the substrate body 100. In order to accommodate the different splicing seams between the two substrate bodies 100, a buffer cavity 204 is constructed in the peripheral rubber layer 202 in this embodiment. By adjusting the pressure on the buffer cavity 204, the two adjacent peripheral rubber layers 202 that are compressed are filled with the splicing seam, thus ensuring the sealing between the adjacent substrate bodies 100.
[0021] As a preferred embodiment of the present invention, such as Figure 1 , 2As shown, the first connecting post 201 and the second connecting post 203 have the same structure. Taking the first connecting post 201 as an example, the first connecting post 201 has a cylindrical or frustum-shaped structure. When the first connecting post 201 has a frustum-shaped structure, the radial length of the first connecting post 201 increases along the direction in which the first connecting post 201 extends into the substrate body 100. This makes it extremely difficult for the first connecting post 201 to detach from the first connecting hole 101, thereby improving the end connection strength between the end rubber layer 200 and the substrate body 100. Similarly, the second connecting post 203 adopts a frustum-shaped structure to improve the circumferential connection strength between the peripheral rubber layer 202 and the substrate body 100.
[0022] The present invention also discloses a production system for the above-mentioned rubber paving slabs at railway crossings, such as... Figures 3-14 As shown, the system includes a substrate casting mold and a rubber injection mold arranged sequentially. The substrate body 100, cast in the substrate casting mold, is placed into the rubber injection mold after curing. The substrate casting mold includes multiple casting mold units 400 arranged side by side. These casting mold units 400 are all mounted on a base plate 300 and are connected to an inflation / deflation pipe system. The working principle and advantages of this invention are as follows: In the production system disclosed in this invention, the substrate casting mold is used to produce the substrate body 100. Concrete is poured into the substrate casting mold and solidifies. After the substrate body 100 has cured, it is transferred to the rubber injection mold. Then, rubber is injected into the rubber injection mold, and finally solidifies and firmly adheres to the substrate body 100.
[0023] As a preferred embodiment of the present invention, such as Figures 3-5As shown, the casting mold unit 400 includes a casting mold body 401 and an inflation / deflation pipe system. The lower end of the casting mold body 401 has two symmetrically arranged connecting edges 403, both of which are detachably connected to the base plate 300. In this embodiment, the casting mold body 401 has a casting cavity 402 with its upper end in an open state. Multiple bottom wall inflation nozzles 404 and multiple peripheral wall inflation nozzles 405 are fixed to the bottom and peripheral walls of the casting cavity 402, respectively. An inflation / deflation chamber 406 is constructed within the casting mold body 401. Each bottom wall inflation nozzle 404 and each peripheral wall inflation nozzle 405 communicates with the inflation / deflation chamber 406, and the inflation / deflation chamber 406 is connected to the inflation / deflation pipe system. This embodiment of the inflation and deflation system includes an inflation and deflation main pipe 500, on which a connecting joint 502 is constructed. Each casting mold body 401 has a connecting pipe 501, which communicates with the corresponding inflation and deflation chamber 406 of the casting mold body 401. Each connecting pipe 501 is also connected to the inflation and deflation main pipe 500. The working principle and advantages of this embodiment are as follows: Before casting the base plate body 100, the reinforcing steel frame is installed in the casting chamber 402. Then, the inflation and deflation chamber 406 is inflated through the inflation and deflation system, causing the bottom wall inflation nozzles 404 and the peripheral wall inflation nozzles 405 to expand synchronously and reach a predetermined size. After expansion, the bottom wall inflation nozzles 404 and the peripheral wall inflation nozzles 405 are less prone to bending or deformation under external force. Then, concrete is poured, and after pouring, the concrete is allowed to set and solidify. After the substrate body 100 is shaped, the inflation and deflation chamber 406 is evacuated through the inflation and deflation pipe system, so that the bottom wall inflation head 404 and the peripheral wall inflation head 405 shrink synchronously, which facilitates the rapid separation of the substrate body 100 from the bottom wall inflation head 404 and the peripheral wall inflation head 405 after demolding.
[0024] As a preferred embodiment of the present invention, such as Figure 6 , 7As shown, the rubber injection mold includes a bottom molding mold 600, a top injection mold 700, and a scissor lift platform 800. The bottom molding mold 600 has an injection chamber, the top injection mold 700 is located at the upper end of the bottom molding mold 600, and the scissor lift platform 800 is installed at the lower end of the bottom molding mold 600. In this embodiment, the substrate body 100 is first placed in the injection chamber of the bottom molding mold 600. Then, by controlling the movement of the scissor lift platform 800, it drives the bottom molding mold 600 upward until the bottom molding mold 600 engages with the top injection mold 700. Rubber is then injected into the injection chamber through the top injection mold 700, forming an end-face rubber layer 200, or an end-face rubber layer 200 and a peripheral rubber layer 202, on the corresponding outer surface of the substrate body 100. After the rubber solidifies, the scissor lift platform 800 is controlled to drive the bottom molding mold 600 downward, disengaging it from the top injection mold 700. Finally, the resulting product is removed from the injection chamber.
[0025] As a preferred embodiment of the present invention, such as Figure 8 , 9 As shown, the top injection mold 700 includes a top mounting base 701. Connecting ears 703 are respectively constructed on two opposite sides of the top mounting base 701, and the connecting ears 703 are connected and fixed to the frame. An injection head 702 is constructed at the lower end of the top mounting base 701. An venting connector 705 and at least one injection connector 704 are constructed on the upper surface of the top mounting base 701. When the top injection mold 700 and the bottom molding mold 600 are engaged, both the venting connector 705 and the injection connector 704 communicate with the injection chamber. Rubber is injected into the injection chamber through the injection connector 704, and the gas in the injection chamber is discharged through the venting connector 705.
[0026] As a preferred embodiment of the present invention, such as Figure 10 , 11As shown, the bottom molding mold 600 includes a molding mold body 601, the lower end of which is connected and fixed to the scissor lift platform 800, and an injection chamber is formed inside the molding mold body 601. In this embodiment, a limiting groove 602 is provided on the upper surface of the bottom wall of the molding mold body 601. The substrate body 100 is placed in the injection chamber, and the lower end of the substrate body 100 is adapted to the limiting groove 602. In this embodiment, a limiting edge 603 is constructed on the periphery of the upper end of the molding mold body 601. When the bottom molding mold 600 is driven by the scissor lift platform 800 to rise and cooperate with the top injection mold 700, the lower end of the injection head 702 is adapted to the limiting edge 603, and an end face injection cavity is formed between the top injection mold 700 and the substrate body 100 to facilitate the entry of rubber into the injection chamber. The height of the injection cavity is equal to the thickness of the end face rubber layer 200. The limiting groove 602 in this embodiment is used to limit the position of the substrate body 100 to avoid deviation during the rubber injection process.
[0027] As a preferred embodiment of the present invention, such as Figure 11 , 13 As shown, a peripheral injection cavity is provided between the peripheral wall of the substrate body 100 and the peripheral wall of the molding mold body 601. Multiple pairs of connection ports are formed on the peripheral wall of the molding mold body 601. The two connection ports constituting each pair are symmetrically arranged on two opposite side walls of the molding mold body 601, and the connection ports 604 communicate with the peripheral injection cavity. At least one pair of connection ports has a molding partition 900 inserted into it. One end of the molding partition 900 passes through the peripheral injection cavity via the connection port pair. The connection ports 604 without the molding partition 900 are sealed by a sealing member 1000. The sealing member 1000 includes a plug body 1001 that extends into the corresponding connection port 604. A connecting plate 1002 is formed at the end of the plug body 1001 outside the connection port 604. The connecting plate 1002 is detachably connected to the outer wall of the molding mold body 601. In this embodiment, the molding partition 900 extends into the peripheral injection cavity, so that the peripheral injection cavity is filled except for the molding partition 900 after the glue is injected. After the rubber is molded, the molding partition 900 is removed from the molding mold body 601, that is, the molding partition 900 is pulled out of the peripheral injection cavity, so that a buffer cavity 204 is formed in the obtained peripheral rubber layer 202.
[0028] As a preferred embodiment of the present invention, such as Figure 14As shown, the molded partition 900 includes a partition body 901 with a medium cavity. The medium cavity extends along the length of the partition body 901 to both ends of the partition body 901, and one end of the medium cavity penetrates the corresponding end of the partition body 901. A partition strip 902 is provided in the medium cavity. The partition strip 902 extends along the length of the partition body 901 from the open end. The medium cavity is divided by the partition strip 902 into an inlet channel 903, a connecting channel 905, and an outlet channel 904, and the inlet channel 903, the connecting channel 905, and the outlet channel 904 are connected sequentially. In this embodiment, a fixed cover 906 is detachably connected to the open end of the partition body 901. An inlet pipe 907 and an outlet pipe 909 are constructed on the fixed cover 906. The inlet pipe 907 and the outlet pipe 909 are connected to the inlet channel 903 and the outlet channel 904, respectively. A first control valve 908 and a second control valve 910 are respectively installed on the inlet pipe 907 and the outlet pipe 909. After the rubber has completely solidified in the circumferential injection cavity, the hot medium (high temperature water) is introduced into the inlet pipe 907 and discharged through the outlet pipe 909. In this way, the hot medium flows through the entire molding partition 900, which heats the rubber near the molding partition 900, causing the rubber to soften. Under external force, it is easier for the rubber to separate from the molding partition 900, thus facilitating the removal of the molding partition 900.
[0029] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.
Claims
1. A production system for rubber paving sheets at railway crossings, characterized in that: The invention includes a rubber paving slab for railway crossings, comprising a base plate body made of cast concrete, an end-face rubber layer fixed to the upper and / or lower end surfaces of the base plate body, and a plurality of first connecting holes spaced apart on the surface where the base plate body and the end-face rubber layer are joined, the end-face rubber layer having a first connecting post extending into the first connecting hole; a peripheral rubber layer attached to the peripheral surface of the base plate body, and a plurality of second connecting holes spaced apart on the surface where the base plate body and the peripheral rubber layer are joined, the peripheral rubber layer having a second connecting post extending into the second connecting hole; a buffer cavity constructed within the peripheral rubber layer; the first and second connecting posts having the same structure, the first connecting post being a cylindrical structure or a frustum-shaped structure; when the first connecting post is a frustum-shaped structure, the radial length of the first connecting post increases along the direction in which the first connecting post extends into the base plate body. The production system for rubber paving slabs at railway crossings includes a substrate casting mold and a rubber injection mold arranged sequentially. The substrate body, cast in the substrate casting mold and cured, is placed into the rubber injection mold. The substrate casting mold includes multiple casting mold units arranged side-by-side, all mounted on a base plate and connected to an inflation / deflation system. Each casting mold unit includes a casting mold body with two symmetrical connecting edges at its lower end, both of which are detachably connected to the base plate. Multiple bottom-wall inflation nozzles and multiple peripheral-wall inflation nozzles are fixed to the bottom and peripheral walls of the casting mold body, respectively. An inflation / deflation chamber is constructed within the casting mold body, and each bottom-wall and peripheral-wall inflation nozzle communicates with the inflation / deflation chamber. The venting chamber is connected to the inflation and deflation pipe system; the rubber injection mold includes a bottom molding mold with an injection chamber, a top injection mold is provided at the upper end of the bottom molding mold, and a scissor lifting platform is installed at the lower end of the bottom molding mold; the bottom molding mold includes a molding mold body connected to the scissor lifting platform at its lower end, the injection chamber is formed in the molding mold body, a limiting groove is provided on the upper end surface of the bottom wall of the molding mold body, the substrate body is placed in the injection chamber, and the lower end of the substrate body is adapted to the limiting groove, and a limiting edge is constructed on the periphery of the upper end of the molding mold body; when the bottom molding mold is driven by the scissor lifting platform to rise and cooperate with the top injection mold, the lower end of the top injection mold is adapted to the limiting edge, and an end face injection cavity is formed between the top injection mold and the substrate body.
2. The production system for rubber paving at railway crossings according to claim 1, characterized in that: The inflation and deflation system includes an inflation and deflation main pipe with connecting joints, and each of the casting mold bodies has a connecting pipe that communicates with the inflation and deflation chamber, and each of the connecting pipes is connected to the inflation and deflation main pipe.
3. The production system for rubber paving at railway crossings according to claim 1, characterized in that: The substrate body has a peripheral injection cavity between its peripheral wall and the molding mold body. Multiple pairs of connection ports are formed on the peripheral wall of the molding mold body. The two connection ports constituting each connection port pair are symmetrically arranged on two opposite side walls of the molding mold body, and the connection ports communicate with the peripheral injection cavity. At least one pair of connection ports is fitted with a molding partition. One end of the molding partition passes through the peripheral injection cavity through the connection port pair, and the connection ports without molding partitions are sealed by a sealing member.
4. The production system for rubber paving at railway crossings according to claim 3, characterized in that: The molded partition includes a partition body with a medium cavity. The medium cavity extends along the length of the partition body to both ends, and one end of the medium cavity penetrates the corresponding end of the partition body. A partition strip extending along the length of the partition body from its open end is provided in the medium cavity, dividing the medium cavity into an interconnected inlet channel, a connecting channel, and an outlet channel. A fixed cover is detachably connected to the open end of the partition body, and an inlet pipe and an outlet pipe are constructed on the fixed cover. The inlet pipe and the outlet pipe are respectively connected to the inlet channel and the outlet channel. A first control valve and a second control valve are respectively installed on the inlet pipe and the outlet pipe.
Citation Information
Patent Citations
Scouring and hitting prevention rubber carpet for concrete bottom plate of hydraulic release structure
CN111501835A
Tunnel segment prefabricating equipment and production process
CN116141469A
City level-crossing rubber paving slab
CN200952109Y
Detachable internal mold type railway crossing plate mold
CN210910495U
Automatic protection device suitable for concrete freeze thawing test
CN219245411U