A heat shrinkable device for insulating steel bars in track slabs

Abstract

This utility model relates to the field of track slab manufacturing, and particularly to a heat shrinking device for insulating steel bars in track slabs. It includes a conveying platform with a steel bar placement port and a steel bar exit port. A chain conveying mechanism and a heat shrinking mechanism are located between the placement port and the exit port. The chain conveying mechanism is connected to the conveying platform, and the heat shrinking mechanism is also connected to the conveying platform. The chain conveying mechanism passes through the heat shrinking mechanism and is capable of carrying steel bars with heat shrinkable tubes from the placement port through the heat shrinking mechanism to the exit port. The placement port has a positioning plate and several adjusting components for adjusting the position of the heat shrinkable tubes. The adjusting components are connected to the conveying platform, and the positioning plate and adjusting components are spaced apart. The positioning plate aligns the steel bars by abutting against their ends. The adjusting components at the placement port push the insulating sleeve during steel bar displacement, ensuring the insulating sleeve is positioned accurately as it passes through the heat shrinking mechanism, preventing the insulating sleeve from shifting position.

Description

Technical Field

[0001] This utility model relates to the field of track slab manufacturing, and in particular to a heat shrinking device for insulating steel bars in track slabs. Background Technology

[0002] In high-speed railway construction, for certain lines, insulation is required between different reinforcing bars laid on the track slab for signal transmission stability and normal track circuit operation. If the reinforcing bars within the track slab are not insulated, the magnetic field and inductance they generate may interfere with signal transmission, thus affecting the train's signal reception and response. Furthermore, insulating the reinforcing bars prevents the formation of circuit loops within the track slab, thereby avoiding short circuits and ensuring the normal operation of the track circuit. Currently, the common insulation method involves fitting insulating sleeves at the joints of different reinforcing bars and fixing the sleeves to the reinforcing bars using heat shrinking.

[0003] However, in actual operation, when using heat shrink to fix the insulating sleeve, the position of the insulating sleeve is prone to shift. Once the insulating sleeve shifts, the operator needs to remove the shifted insulating sleeve and reinstall a new insulating sleeve, which results in low installation efficiency of the insulating sleeve. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology where the position of the insulating sleeve is easily shifted when heat-shrinking and fixing the insulating sleeve on the reinforcing steel, and to provide a heat-shrinking device for insulating reinforcing steel bars of track slabs.

[0005] This utility model provides a heat shrinking device for insulating steel bars in track slabs, comprising:

[0006] A conveying platform is provided with a rebar release port and a rebar outlet port. A chain conveying mechanism and a heat shrinking mechanism are provided between the rebar release port and the rebar outlet port. The chain conveying mechanism is connected to the conveying platform, and the heat shrinking mechanism is connected to the conveying platform. The chain conveying mechanism passes through the heat shrinking mechanism, and the chain conveying mechanism is capable of carrying rebars with heat shrink tubes and moving them from the rebar release port through the heat shrinking mechanism to the rebar outlet port.

[0007] The heat shrink tubing outlet is equipped with a positioning plate and several adjusting components for adjusting the position of the heat shrink tubing. The adjusting components are connected to the conveying platform, and the positioning plate and the adjusting components are spaced apart.

[0008] Preferably, the chain conveying mechanism includes a conveying chain, a rotating shaft, and a driving mechanism. The conveying chain is connected to the rotating shaft and rotatably connected to the conveying platform. The conveying chain is capable of carrying the movement of the reinforcing bars. The rotating shaft is rotatably connected to the conveying platform, and the driving mechanism is connected to the rotating shaft.

[0009] Preferably, the rotating shaft is provided with a transmission gear, which meshes with the conveyor chain.

[0010] Preferably, the conveyor chain includes a first chain and a second chain, the first chain and the second chain are parallel, the tops of the first chain and the second chain are located on the same plane, the first chain and the second chain are respectively connected to the rotating shaft, and the rotating shaft can drive the first chain and the second chain to rotate synchronously.

[0011] Preferably, the heat shrinking mechanism has a through channel through which the first chain and the second chain pass respectively, and a heating structure is provided in the channel, the heating structure being connected to the heat shrinking mechanism.

[0012] Preferably, heat-insulating curtains are hung at the openings at both ends of the channel.

[0013] Preferably, the heating structure includes a plurality of heating rods, with adjacent heating rods spaced apart.

[0014] Preferably, the drive mechanism includes a servo motor, which is connected to the conveying platform. The servo motor is equipped with a controller, which is connected to the conveying platform and located at the top of the conveying platform.

[0015] Preferably, the adjusting member includes a first stop bar and a second stop bar, the first stop bar and the second stop bar are located at the same horizontal height, and the distance between the first stop bar and the second stop bar gradually decreases along the conveying direction of the reinforcing bar.

[0016] Preferably, the top height of the first stop bar is lower than the top surface height of the chain conveyor mechanism.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This utility model provides a heat-shrinking device for insulating steel bars in track slabs. A chain conveying mechanism and a heat-shrinking mechanism are installed between the steel bar release port and the steel bar exit port. The chain conveying mechanism drives the steel bar from the release port to the exit port. As the steel bar passes through the heat-shrinking mechanism, the insulating sleeve fitted on the steel bar is heated and shrunken, fixing it to the steel bar. To ensure the accurate positioning of the insulating sleeve on the steel bar, a positioning plate abuts against the end of the steel bar to align it. An adjusting component is provided at the release port. This adjusting component pushes the insulating sleeve during the steel bar displacement process, ensuring the insulating sleeve is positioned accurately as it passes through the heat-shrinking mechanism. This ensures the heat-shrinked insulating sleeve is in the correct position on the steel bar, preventing misalignment and improving the installation efficiency of the insulating sleeve. Attached Figure Description

[0019] Figure 1 This is a top view schematic diagram of a heat shrinking device for insulating steel bars in track slabs according to the present invention;

[0020] Figure 2 This is a schematic diagram of the chain conveying mechanism for a heat shrinking device for insulating steel bars in track slabs according to the present invention.

[0021] Figure 3 This is a schematic diagram of the heat shrinking mechanism of a heat shrinking device for insulating steel bars in track slabs according to the present invention.

[0022] Figure 4 This is a schematic diagram of the structure of an adjusting component for a heat shrinking device for insulating steel bars in track slabs, as shown in Example 1.

[0023] Marked in the image:

[0024] 1-Conveying platform, 2-Reinforcing bar outlet, 3-Reinforcing bar outlet, 4-Chain conveying mechanism, 41-Conveying chain, 411-First chain, 412-Second chain, 42-Rotating shaft, 43-Drive mechanism, 431-Controller, 44-Rotating shaft, 45-Driven support gear, 46-Transmission gear, 5-Heat shrinking mechanism, 51-Heating rod, 52-Channel, 53-Heat insulation curtain, 6-Adjusting component, 61-First stop bar, 62-Second stop bar. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0026] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0027] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0028] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0029] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0030] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0031] Example 1

[0032] like Figures 1-4 As shown, a heat-shrinkable device for insulating steel bars in track slabs specifically comprises a conveying platform 1. The top platform surface of the conveying platform 1 has a steel bar placement port 2 and a steel bar exit port 3 on both sides. A chain conveying mechanism 4 and a heat-shrinkable mechanism 5 are located between the placement port 2 and the exit port 3. The heat-shrinkable mechanism 5 is positioned between the exit port 3 and the placement port 2. The chain conveying mechanism 4 is connected to the conveying platform 1, providing support to support the steel bar displacement. The heat-shrinkable mechanism 5 is connected to the conveying platform 1, and the chain conveying mechanism 4 passes through the heat-shrinkable mechanism 5, fixing the heat-shrinkable mechanism 5 on the steel bar displacement path. The chain conveying mechanism 4 can carry steel bars with heat-shrinkable tubes from the placement port 2 through the heat-shrinkable mechanism 5 to the exit port 3. The placement port 2 has a positioning plate and several adjusting components 6 for adjusting the position of the heat-shrinkable tubes. The adjusting components 6 are connected to the conveying platform 1, and each adjusting component 6 corresponds to adjusting the position of an insulating sleeve on the steel bar. The positioning plate and the adjusting components 6 are spaced apart, and the ends of the steel bars can be aligned by abutting against the positioning plate.

[0033] By setting a chain conveyor mechanism 4 and a heat shrinking mechanism 5 between the rebar release port 2 and the rebar exit port 3, the chain conveyor mechanism 4 can drive the rebar to move from the rebar release port 2 to the rebar exit port 3. When the rebar passes through the heat shrinking mechanism 5, the insulating sleeve fitted on the rebar is heated and shrunk to fix it on the rebar. In order to ensure that the insulating sleeve is accurately positioned on the rebar, the positioning plate abuts against the end of the rebar to align the rebar. An adjusting component 6 is set at the rebar release port 2. The adjusting component 6 can push the insulating sleeve to the accurate position as it passes through the heat shrinking mechanism 5 during the rebar displacement, thereby ensuring that the heat-shrinked insulating sleeve is in the accurate position on the rebar, avoiding the positional deviation of the insulating sleeve on the rebar, and improving the installation efficiency of the insulating sleeve.

[0034] In one or more embodiments, the chain conveying mechanism 4 includes a conveying chain 41, a rotating shaft 42, and a driving mechanism 43. The conveying chain 41 is connected to the rotating shaft 42 and rotatably connected to the conveying platform 1. The conveying chain 41 can carry the movement of the reinforcing bars. The rotating shaft 42 is rotatably connected to the conveying platform 1, and the driving mechanism 43 is connected to the rotating shaft 42. The two hinged parts of the conveying chain 41 can limit the movement of the reinforcing bars. The conveying chain 41 is in a taut state so that the reinforcing bars can be supported. By driving the rotating shaft 42 to rotate, the rotating shaft 42 drives the conveying chain 41 to rotate, thereby causing the conveying chain 41 to support the reinforcing bars and move. In order to keep the conveying chain 41 taut, a rotating shaft 44 is provided at the rebar outlet 3, and the rotating shaft 44 is connected to the chain. The rotating shaft 44 can rotate with the conveying chain 41.

[0035] In an optional embodiment, a transmission gear 46 is provided on the rotating shaft 42, and the transmission gear 46 meshes with the conveyor chain 41; the transmission gear 46 on the rotating shaft 42 meshes with the conveyor chain 41, thereby enabling the rotating shaft 42 to drive the conveyor chain 41 to move accurately.

[0036] In an optional embodiment, the conveying chain 41 includes a first chain 411 and a second chain 412. The first chain 411 and the second chain 412 are parallel, and their tops are on the same plane. The first chain 411 and the second chain 412 are respectively connected to a rotating shaft 42, which can drive the first chain 411 and the second chain 412 to rotate synchronously. The first chain 411 and the second chain 412 are located on both sides of the conveying platform 1 and are parallel to each other. One end of the reinforcing bar is supported by the first chain 411, and the other end is supported by the second chain 412. When the first chain 411 and the second chain 412 move synchronously, they drive the reinforcing bar to move. A plurality of driven support gears 45 are also provided on the conveying platform 1. The driven support gears 45 mesh with the first chain 411 or the second chain 412 to provide good support for the reinforcing bar. The first chain 411 and the second chain 412 are both annular chains.

[0037] In an optional embodiment, the heat shrinking mechanism 5 has a through channel 52, through which the first chain 411 and the second chain 412 pass respectively. A heating structure is provided in the channel 52 and is connected to the heat shrinking mechanism 5. When the reinforcing bar passes through the heating channel 52, the heating structure heats up, causing the insulating sleeve to shrink and be fixed on the reinforcing bar.

[0038] In an optional embodiment, heat insulation curtains 53 are respectively hung at the openings at both ends of the channel 52; the heat insulation curtains 53 can be made of high silica fiber cloth or other high temperature resistant and soft materials, which can cover part of the openings while making it easy for personnel to maintain; the heat insulation curtains 53 must ensure that there is no contact between the heat insulation curtains 53 and the insulating sleeve when the steel bars enter and exit the channel 52, the heat insulation curtains 53 reduce heat loss, save energy, and ensure the heat shrink effect of the insulating sleeve.

[0039] In an optional embodiment, the heating structure includes a plurality of heating rods 51, with adjacent heating rods 51 spaced apart; the plurality of heating rods 51 are located on the same horizontal plane, thereby ensuring uniform heating. In some embodiments, the heating rods 51 are respectively arranged on the upper and lower sides of the reinforcing bar, with three heating rods 51 arranged on the upper side of the reinforcing bar and three heating rods 51 arranged on the lower side of the reinforcing bar, so that the insulating sleeve is heated evenly; the heating rods 51 are resistance heating rods; in an optional embodiment, a chamber is provided in the heat shrinking mechanism 5, and the heating rods 51 are installed in the chamber.

[0040] In an optional embodiment, the drive mechanism 43 includes a servo motor connected to the conveying platform 1. The servo motor is equipped with a controller 431 connected to the conveying platform 1. The controller 431 is located on the top of the conveying platform 1 and can control the start and stop of the servo motor, which facilitates the placement of the reinforcing bars by the operators. Specifically, the rotation speed of the servo motor should ensure that the insulating sleeve is heat-shrinked and fixed to the reinforcing bar after the reinforcing bar passes through the channel 52.

[0041] In one or more embodiments, the adjusting member 6 includes a first stop bar 61 and a second stop bar 62, which are located at the same horizontal height. Along the conveying direction of the reinforcing bar, the distance between the first stop bar 61 and the second stop bar 62 gradually decreases. After the reinforcing bar is placed in the bar placement opening 2, the insulating sleeve is located between the first stop bar 61 and the second stop bar 62. As the reinforcing bar is displaced, the first stop bar 61 or the second stop bar 62 moves the insulating sleeve, thereby ensuring that the insulating sleeve is in the accurate position of the reinforcing bar. When the reinforcing bar is placed, the reinforcing bar is perpendicular to the displacement direction of the conveying platform 1.

[0042] In an optional embodiment, the top height of the first stop bar 61 is lower than the top surface height of the chain conveying mechanism 4 to avoid interference between the first stop bar 61 and the second stop bar 62 with the reinforcing bars.

[0043] This utility model discloses a heat shrinking device for insulating steel bars in track slabs. In use, steel bars are placed into the bar placement opening 2, and the insulating sleeve is adjusted to be positioned between the first stop bar 61 and the second stop bar 62 so that the steel bars are placed perpendicular to the displacement direction of the conveying platform 1. The servo motor and heating structure are started, so that the steel bars are transported through the channel 52 via the conveying chain 41, thereby so that the insulating sleeve is heat-shrinked and fixed on the steel bars and discharged from the bar outlet 3.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heat shrink device for insulating track slab reinforcement, characterized in that, include: A conveying platform (1) is provided with a bar-laying opening (2) and a bar-out opening (3). A chain conveying mechanism (4) and a heat-shrinking mechanism (5) are provided between the bar-laying opening (2) and the bar-out opening (3). The chain conveying mechanism (4) is connected to the conveying platform (1), and the heat-shrinking mechanism (5) is connected to the conveying platform (1). The chain conveying mechanism (4) passes through the heat-shrinking mechanism (5). The chain conveying mechanism (4) can carry the steel bars with heat-shrinkable tubes from the bar-laying opening (2) through the heat-shrinking mechanism (5) to the bar-out opening (3). The rib-laying opening (2) is provided with a positioning plate and several adjusting components (6) for adjusting the position of the heat shrink tubing. The adjusting components (6) are connected to the conveying platform (1), and the positioning plate and the adjusting components (6) are spaced apart.

2. A heat shrink device for insulating track slab reinforcement as claimed in claim 1, wherein, The chain conveying mechanism (4) includes a conveying chain (41), a rotating shaft (42), and a driving mechanism (43). The conveying chain (41) is connected to the rotating shaft (42) and is rotatably connected to the conveying platform (1). The conveying chain (41) can carry the movement of the reinforcing bars. The rotating shaft (42) is rotatably connected to the conveying platform (1), and the driving mechanism (43) is connected to the rotating shaft (42).

3. A heat shrink device for insulating track slab reinforcement as claimed in claim 2, wherein, The rotating shaft (42) is provided with a transmission gear (46), which meshes with the conveyor chain (41).

4. A heat shrink device for insulating track slab reinforcement as claimed in claim 2, wherein, The conveying chain (41) includes a first chain (411) and a second chain (412). The first chain (411) and the second chain (412) are parallel, and the tops of the first chain (411) and the second chain (412) are located on the same plane. The first chain (411) and the second chain (412) are respectively connected to the rotating shaft (42), and the rotating shaft (42) can drive the first chain (411) and the second chain (412) to rotate synchronously.

5. A heat shrink device for insulating track slab reinforcement as claimed in claim 4, wherein, The heat shrinking mechanism (5) has a through channel (52), through which the first chain (411) and the second chain (412) pass respectively. A heating structure is provided in the channel (52), and the heating structure is connected to the heat shrinking mechanism (5).

6. A heat shrink device for insulating track slab reinforcement as claimed in claim 5, wherein, Heat insulation curtains (53) are hung at the openings at both ends of the channel (52).

7. A heat shrinking device for insulating steel bars in track slabs according to claim 5, characterized in that, The heating structure includes a plurality of heating rods (51), with adjacent heating rods (51) spaced apart.

8. A heat-shrinking device for track slab insulation reinforcement steel according to claim 2, characterized in that, The drive mechanism (43) includes a servo motor connected to the conveying platform (1). The servo motor is equipped with a controller (431) connected to the conveying platform (1) and located at the top of the conveying platform (1).

9. A heat shrinking device for trackway slab insulation reinforcement according to any one of claims 1 to 8, characterized in that, The adjusting member (6) includes a first stop bar (61) and a second stop bar (62). The first stop bar (61) and the second stop bar (62) are located at the same horizontal height. Along the conveying direction of the reinforcing bar, the distance between the first stop bar (61) and the second stop bar (62) gradually decreases.

10. A heat shrink device for insulating track slab reinforcement as claimed in claim 9, wherein, The top height of the first baffle (61) is lower than the top surface height of the chain conveying mechanism (4).

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