Duct piece surface finishing tool

Abstract

The utility model relates to the technical field of duct piece manufacturing, in particular to a duct piece surface finishing tool, which comprises a seat body and further comprises a plurality of groups of support rods which are arranged on the seat body and can move up and down, each support assembly comprises two support rods, and two ends of each support rod penetrate through a sliding chute of the seat body; the balance regulation and control assembly is arranged below the seat body, connected to the supporting assembly and used for automatically adjusting the height of each supporting rod so as to be attached to pipe pieces with different radians. The noodle pulling mechanism comprises a sliding rail arranged on the side of the seat body and a scraping rod capable of moving along the sliding rail, and is used for performing scraping treatment on a duct piece forming area; the state fixing mechanism comprises an electromagnet part and a magnetic attraction block, the electromagnet part is arranged below the seat body, and the magnetic attraction block is fixedly arranged on a middle piston of the balance regulation and control assembly and used for fixing the height position of the supporting assembly. According to the duct piece surface finishing tool, the supporting fitting degree can be automatically adjusted and surface scraping operation can be completed on the premise that a supporting component is not replaced and the contact surface of the duct piece is not separated.

Description

Technical Field

[0001] This utility model relates to the field of prefabrication and processing technology of concrete pipe segments, specifically a pipe segment finishing tool. Background Technology

[0002] In urban rail transit and tunnel lining construction, precast concrete segments are commonly used lining components, and their manufacturing precision directly affects the assembly efficiency and lining sealing of subsequent construction. During the precast production of segments, factors such as mold fitting gaps, concrete vibration flowability, or curing deformation often cause micro-protrusions or localized unevenness in the formed area of ​​the segments. To ensure the geometric accuracy and appearance quality of the formed segments, it is usually necessary to perform manual or mechanical "finishing" on the edges after demolding, that is, to use special tools to refine and repair the formed edges of the segments. However, existing tools used for this treatment are mostly fixed structures, which cannot adapt to the edges of segments with different specifications and curvatures, are inconvenient to adjust, have low efficiency, and even have defects such as large scraping errors and easy damage to the formed surface. Therefore, there is an urgent need for an automated finishing tool suitable for segments with different curvatures to improve the edge trimming quality and processing efficiency in the precast segment production process. Utility Model Content

[0003] The purpose of this invention is to solve the problems mentioned in the background art, and thus proposes a segment finishing tool. This invention discloses a segment finishing tool that, through the construction of a composite structural system of multi-point linkage adaptive support, air pressure equalization control, electromagnetic locking, and track scraping operation, achieves rapid adaptation and precise finishing operation of segments with different curvatures without stopping the machine or replacing parts.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A pipe segment forming tool includes a base and further includes: a support assembly comprising several sets of support rods disposed on the base and movable up and down, each support assembly including two support rods, the two ends of which pass through a slide groove in the base; a leveling control assembly disposed below the base and connected to the support assembly, for automatically adjusting the height of each support rod to conform to pipe segments of different curvatures; a forming mechanism including a slide rail disposed on the side of the base and a scraper rod movable along the slide rail, for leveling the forming area of ​​the pipe segment; and a state fixing mechanism including an electromagnet part and a magnetic block, the electromagnet part being disposed below the base and the magnetic block being fixedly disposed on the leveling control assembly for fixing the height position of the support assembly.

[0006] Preferably, the equalization control component includes multiple active air pressure chambers disposed below all support components, and further includes: a piston rod fixedly connected to the bottom end of the support component; multiple piston heads respectively fixedly disposed at the bottom end of the piston rod and located within each of the active air pressure chambers; a passive air pressure chamber disposed outside the base; and a central piston used to separate the multiple active air pressure chambers and one passive air pressure chamber, the central piston being movable toward either the active air pressure chamber or the passive air pressure chamber.

[0007] Preferably, the support assembly further includes: a synchronizing rod, horizontally arranged between the two ends of each set of support rods; a sleeve, fixedly sleeved on the outer wall of the support rod located inside the seat body; and an abutment groove, formed in the upper half of the outer wall of the sleeve, for abutting the end of the arc-shaped tube segment.

[0008] Preferably, the length of each set of support rods decreases gradually from the outside to the inside, and the synchronizing rods sleeved on each set of support rods are staggered.

[0009] Preferably, the ramen-pulling mechanism includes: two slide rails, both horizontally fixed on the upper half of two opposite side walls of the base; a vertical rod, slidably mounted on the slide rails, with the top end of the vertical rod extending above the base; a lifting block, sleeved on the vertical rod, and capable of moving vertically up and down along the vertical rod; and a scraper rod connected between the two lifting blocks, with a scraper blade at the bottom end of the scraper rod.

[0010] Preferably, the upper half of the upright is hollow, and at least one spring is provided in the upper half of the upright cavity, with the bottom end of the spring abutting against the end face of the lifting block located in the upright cavity.

[0011] Preferably, the top end of the pole is further provided with an adjustment part, which includes a screw screwed into the end face of the top end of the pole, and an adjustment block movably connected to the bottom end of the screw. The screw is used to adjust the height position of the adjustment block in the inner cavity of the pole, thereby changing the contact point with the top end of the spring.

[0012] Preferably, the magnetic block is fixedly disposed on the outer end face of the central piston, and the electromagnet part is used to attract and fix the magnetic block.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The device disclosed in this utility model constructs a composite structural system of multi-point linkage adaptive support, air pressure equalization control, electromagnetic locking, and track scraping operation, which enables rapid adaptation and precise surface finishing of tube segments with different curvatures without stopping the machine or replacing parts.

[0015] 2. The equalization control component of the device disclosed in this utility model adopts an active air pressure chamber and a passive air pressure chamber structure in conjunction with a central piston, so that multiple support components can automatically achieve height equalization and fit support under the action of the segment's own weight; in conjunction with the electromagnet part and magnetic block in the state fixing mechanism, the support state is stably maintained through electromagnetic locking, avoiding positional shifting or displacement of the support system during the face-forming process;

[0016] 3. The present invention discloses a screeding mechanism that utilizes an adjustable-height scraper structure to elastically abut against and move along a side slide rail, thereby achieving uniform scraping of the precast segment manufacturing area. This tool has a compact structure, reliable control, and can be widely adapted to precast segments of different geometric shapes, effectively improving construction efficiency, processing quality, and operational safety. It is applicable to the precast concrete segment processing stage in urban subway, tunnel lining, and other engineering projects, and has good practical value and promotion prospects. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the front view of the present invention.

[0019] Figure 3 This is a schematic diagram of the structure after the tube segment is removed in this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the central piston in this utility model;

[0021] Figure 5 This is a schematic diagram of the noodle-pulling mechanism in this utility model;

[0022] Figure 6 This is a schematic diagram of the scraper blade in this utility model;

[0023] Figure 7 for Figure 3 A magnified schematic diagram of the structure at point A in the diagram.

[0024] The components are as follows: 10. Base; 20. Support assembly; 30. Balance control assembly; 40. Pulling mechanism; 50. State fixing mechanism; 11. Slide groove; 21. Support rod; 22. Synchronizing rod; 23. Kit; 24. Abutment groove; 31. Piston rod; 32. Piston head; 33. Active air pressure chamber; 34. Central piston; 35. Passive air pressure chamber; 41. Slide rail; 42. Upright rod; 43. Lifting block; 44. Spring; 45. Adjustment part; 46. Scraper rod; 461. Scraper blade; 51. Electromagnet part; 52. Magnetic block. Detailed Implementation

[0025] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0026] Please see Figures 1 to 7 This utility model provides a technical solution: a sheet forming tool, including a base 10, and further including: a support component 20, a balance adjustment component 30, a sheet forming mechanism 40 and a state fixing mechanism 50.

[0027] Specifically, the support assembly 20 includes several sets of support rods 21 that are mounted on the base 10 and can move up and down. Each support assembly 20 includes two support rods 21, with both ends of the support rods 21 passing through the slide grooves 11 of the base 10. The equalization control assembly 30 is located below the base 10 and connected to the support assembly 20. It is used to automatically adjust the height of each support rod 21 to fit the tube sheet with different curvatures. The noodle-pulling mechanism 40 includes a slide rail 41 located on the side of the base 10 and a scraper 46 that can move along the slide rail 41. It is used to smooth the tube sheet forming area. The state fixing mechanism 50 includes an electromagnet part 51 and a magnetic block 52. The electromagnet part 51 is located below the base 10, and the magnetic block 52 is fixedly mounted on the equalization control assembly 30. It is used to fix the height position of the support assembly 20.

[0028] The segment forming tool provided in this application includes, in its basic structure, a base 10, several sets of support components 20 disposed on the base 10, a balance control component 30 for synchronous height adjustment, a stripping mechanism 40 for trimming the forming area of ​​the segment, and a state fixing mechanism 50 for maintaining stable support. Each set of support components 20 has two support rods 21, the two ends of which pass through grooves 11 on the base 10, allowing free movement in the vertical direction to meet different height support requirements. Each set of support rods 21 is connected by a synchronizing rod 22 to ensure synchronized operation during lifting and lowering, preventing any discrepancies in height during any single lift. The stripping mechanism 40 is located on the side of the base 10 and has a scraper 46 structure that can move along slide rails 41 on both sides of the base 10, enabling it to effectively scrape and level the forming area of ​​the segment, improving the overall forming appearance quality. The equalization control component 30 is connected to the support component 20, and the height of the support rod 21 is uniformly adjusted by air pressure or structural linkage. The state fixing mechanism 50 locks the adjusted support state through the adsorption between the electromagnet part 51 and the magnetic block 52, so as to avoid support displacement during construction, thereby achieving an organic unity of structural stability and operation convenience.

[0029] In some examples, the equalization control component 30 further includes multiple active air pressure chambers 33 disposed below the entire support component 20, and also includes: a piston rod 31, multiple piston heads 32, a central piston 34, and a passive air pressure chamber 35. The piston rod 31 is fixedly connected to the bottom end of the support component 20; the multiple piston heads 32 are respectively fixedly disposed at the bottom end of the piston rod 31 and located within each active air pressure chamber 33; the passive air pressure chamber 35 is disposed outside the seat body 10; the central piston 34 is used to separate the multiple active air pressure chambers 33 and one passive air pressure chamber 35, and the central piston 34 can be moved toward either the active air pressure chamber 33 or the passive air pressure chamber 35.

[0030] In this embodiment, multiple active pneumatic chambers 33 and one passive pneumatic chamber 35 are included. Each active pneumatic chamber 33 is located below each support assembly 20 and is connected to the lower end of the support rod 21 via a piston rod 31. A piston head 32 is fixedly installed at the bottom of the piston rod 31 and located inside the pneumatic chamber. When the tube segment is placed on the support assembly 20, the piston system generates a pressure difference due to the difference in gravity at different positions. This pressure difference is then balanced by the sliding behavior of the central piston 34 between the passive and active chambers. During this process, each support rod 21 automatically adjusts to a relative height that fits the bottom of the tube segment. The central piston 34, acting as a separator, not only forms cavity isolation in its structure but also allows for the conduction or cutoff of liquid in multiple channels through structural design, achieving adaptive linkage adjustment of the system. This enables multiple support points to achieve synchronous displacement without independent control, greatly improving the adaptability to tube segments with various curvatures and construction efficiency.

[0031] In some examples, the support assembly 20 further includes: a synchronizing rod 22, a kit 23, and an abutment groove 24. The synchronizing rod 22 is horizontally arranged between the two ends of each set of support rods 21. The kit 23 is fixedly sleeved on the outer wall of the support rod 21 located inside the seat 10. The abutment groove 24 is formed in the upper half of the outer wall of the kit 23 for abutting the end of the arc-shaped tube segment.

[0032] In this example, the support assembly 20 further incorporates a combined structure of a synchronizing rod 22, a fitting 23, and an abutment groove 24 on top of the basic structure. The synchronizing rod 22 is positioned between the two ends of each set of support rods 21 to maintain the synchronous lifting stability of the two support rods 21 and prevent height deviation during the support process. Simultaneously, to enhance the stable fit of the support rods 21 to the curved surface of the segment, each support rod 21 has a fixed fitting 23 structure on its middle outer wall. The fitting 23 has an abutment groove 24 on its upper outer wall. When the segment is placed on the support rod 21, its lower curved edge naturally abuts against the abutment groove 24, forming a point-line contact clamping effect. This structure prevents the segment from shifting or rotating during construction, improving safety and operational accuracy during finishing operations, and is particularly suitable for handling large-diameter or irregularly curved precast segments.

[0033] In some examples, each set of support rods 21 further includes two support rods 21, the length of each set of support rods 21 decreases from the outside to the inside, and the synchronizing rods 22 sleeved on each set of support rods 21 are staggered.

[0034] In this example, the support rods 21 are arranged in a progressively decreasing length from the outside to the inside. This decreasing arrangement allows the support rods 21 located at different positions on the base 10 to have staggered travel paths during lifting and lowering, avoiding spatial interference caused by structural overlap during the overall vertical movement of the support assembly 20. Simultaneously, the synchronizing rods 22 between the support rods 21 are also arranged in a staggered manner, meaning that the synchronizing rods 22 of different groups avoid each other in spatial position, ensuring the smoothness of the entire support system during operation.

[0035] In some examples, the ramen-making mechanism 40 further includes: two slide rails 41, a vertical rod 42, a lifting block 43, and a scraper 46. The two slide rails 41 are both fixedly arranged horizontally on the upper half of two opposite side walls of the base 10. The vertical rod 42 is slidably arranged on the slide rails 41, and the top end of the vertical rod 42 extends above the base 10. The lifting block 43 is sleeved on the vertical rod 42 and can move up and down along the vertical rod 42 in the vertical direction. The scraper 46 is connected between the two lifting blocks 43, and a scraper blade 461 is also provided at the bottom end of the scraper 46.

[0036] In this example, the noodle-pulling mechanism 40 adopts a double-rail parallel structure. During the loading process, the noodle-pulling mechanism 40 is located on the outside of the side of the equipment. Two horizontal slide rails 41 are symmetrically fixed at the upper positions on the left and right sides of the base 10, and uprights 42 are slidably mounted on them. The top of the uprights 42 extends above the base 10, providing structural redundancy for subsequent up and down movements. Lifting blocks 43 are sleeved on the uprights 42. The lifting blocks 43 can move vertically up and down along the uprights 42, thereby driving the scraper 46 connected between the two lifting blocks 43 to move. The scraper 46 has a scraper blade 461 at the bottom end, which enables it to achieve efficient scraping and leveling of the tube forming part during horizontal movement.

[0037] In some examples, the upper half of the upright 42 is hollow, and at least one spring 44 is provided in the upper half cavity of the upright 42. The bottom end of the spring 44 abuts against the end face of the lifting block 43 located in the cavity of the upright 42.

[0038] In this example, to improve the pressing stability of the lifting block 43 on the scraper 46, this embodiment features a hollow structure inside the upright 42, with at least one spring 44 installed in the upper cavity. The bottom end of the spring 44 abuts against the inner end face above the lifting block 43, achieving a continuous downward pressing effect on the lifting block 43 through elasticity, thereby ensuring that the scraper 46 maintains contact force with the segment forming area. This structure can absorb height changes caused by irregular surfaces during the scraping process, forming an adaptive and flexible adjustment mechanism, which is particularly suitable for the initial segment finishing process with large curvature deviations, ensuring both scraping force and reducing the risk of damage to the segment surface.

[0039] In some examples, the top of the upright 42 is further provided with an adjustment part 45, which includes a screw screwed into the end face of the top of the upright 42 and an adjustment block movably connected to the bottom of the screw. The screw is used to adjust the height position of the adjustment block in the inner cavity of the upright 42, thereby changing the contact point with the top of the spring 44.

[0040] In this example, to further control the downward pressure of the scraper 46, an adjustment part 45 is added to the top of the upright 42. This adjustment part 45 consists of a screw threaded to the top of the upright 42 and an adjustment block movably connected to it within the inner cavity. The user can rotate the screw to move the adjustment block up and down within the cavity of the upright 42, thereby changing the compression preload of the spring 44, i.e., adjusting the starting point of force on the top of the spring 44, thus precisely controlling the rebound force of the lifting block 43. This structure provides the operator with a mechanical pressure adjustment method with a wide adjustable range, adapting to different working depths and finishing accuracy requirements without replacing the spring 44.

[0041] In some examples, the state fixing mechanism 50 further includes an electromagnet part 51, and a magnetic block 52 is fixedly disposed on the outer end face of the central piston 34. The electromagnet part 51 is used to attract and fix the magnetic block 52.

[0042] In this example, to achieve rapid fixing and release of the support state, the state fixing mechanism 50 adopts an electromagnetic adsorption structure. Specifically, the electromagnet part 51 is located below the base 10, and a magnetic block 52 is fixedly installed on the outer end face of the central piston 34. When the equalization control component 30 is adjusted to the appropriate support height, the electromagnet is energized to attract the magnetic block 52, thereby restricting the movement of the central piston 34 and indirectly locking the liquid flow between the active pneumatic chamber 33 and the passive pneumatic chamber 35. Simultaneously, the incompressibility of the liquid ensures that the position of the support component 20 will not drift due to segment displacement or vibration. This structure avoids the complex operation of traditional mechanical locking; locking and unlocking of the support state can be completed simply by switching power on and off. It offers rapid response, a simple structure, and greatly improves construction continuity.

[0043] In the description of this utility model, the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for describing this utility model and do not require that this utility model be constructed or operated in a specific orientation, and therefore should not be construed as limiting this utility model. The terms "connected" and "linked" in this utility model should be interpreted broadly. For example, they can refer to a connection or a detachable connection; they can refer to a direct connection or an indirect connection through intermediate components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0044] The above description represents the preferred operating mode of this utility model. The specific operating mode description is only for better understanding the concept of this utility model. For those skilled in the art, several improvements or equivalent substitutions can be made based on the principles of this utility model, and these improvements or equivalent substitutions are also considered to fall within the protection scope of this utility model.

Claims

1. A segment erector tool comprising a base body (10), characterized in that Also includes: The support assembly (20), the balance control assembly (30), the noodle-pulling mechanism (40), and the state fixing mechanism (50) are arranged on the seat (10). The support assembly (20) includes several sets of support rods (21) arranged on the seat (10) and movable up and down. Each support assembly (20) includes two support rods (21), and the two ends of the support rods (21) pass through the slide grooves (11) of the seat (10). The balance control assembly (30) is arranged below the seat (10) and connected to the support assembly (20) for automatic adjustment. The height of each support rod (21) is adjusted to fit the tube segments with different curvatures; the noodle-pulling mechanism (40) includes a slide rail (41) set on the side of the base (10) and a scraper (46) that can move along the slide rail (41) for scraping the tube segment forming area; the state fixing mechanism (50) includes an electromagnet part (51) and a magnetic block (52). The electromagnet part (51) is set below the base (10), and the magnetic block (52) is fixedly set on the equalization control component (30) for fixing the height position of the support component (20).

2. The pipe patching tool of claim 1, wherein: The equalization control component (30) includes multiple active air pressure chambers (33) disposed below all support components (20), and also includes a piston rod (31), multiple piston heads (32), a passive air pressure chamber (35), and a central piston (34). The piston rod (31) is fixedly connected to the bottom end of the support component (20). The multiple piston heads (32) are respectively fixedly disposed at the bottom end of the piston rod (31) and located inside the active air pressure chamber (33). The passive air pressure chamber (35) is disposed outside the seat body (10). The central piston (34) is used to separate the multiple active air pressure chambers (33) and one passive air pressure chamber (35). The central piston (34) can be moved toward the active air pressure chamber (33) or the passive air pressure chamber (35).

3. The pipe patching tool of claim 1, wherein: The support assembly (20) also includes a synchronizing rod (22), a kit (23), and an abutment groove (24). The synchronizing rod (22) is arranged horizontally between the two ends of each set of support rods (21). The kit (23) is fixedly sleeved on the outer wall of the support rod (21) located inside the seat (10). The abutment groove (24) is opened in the upper half of the outer wall of the kit (23) for abutting the end of the arc-shaped tube.

4. The pipe patching tool of claim 3, wherein: The length of each group of support rods (21) decreases gradually from the outside to the inside, and the synchronizing rods (22) sleeved on each group of support rods (21) are staggered.

5. The pipe patching tool of claim 1, wherein: The ramen-pulling mechanism (40) includes two slide rails (41), a vertical rod (42), a lifting block (43), and a scraper (46). The two slide rails (41) are fixedly arranged horizontally on the upper half of two opposite side walls of the base (10). The vertical rod (42) is slidably arranged on the slide rails (41), and the top end of the vertical rod (42) extends above the base (10). The lifting block (43) is sleeved on the vertical rod (42) and can move up and down along the vertical rod (42) in the vertical direction. The scraper (46) is connected between the two lifting blocks (43), and a scraper blade (461) is also provided at the bottom end of the scraper (46).

6. The pipe patching tool of claim 5, wherein: The upper half of the pole (42) is hollow, and at least one spring (44) is provided in the upper half of the inner cavity of the pole (42). The bottom end of the spring (44) abuts against the end face of the lifting block (43) located in the inner cavity of the pole (42).

7. The pipe patching tool of claim 6, wherein: The top end of the pole (42) is also provided with an adjustment part (45). The adjustment part (45) includes a screw screwed into the end face of the top end of the pole (42) and an adjustment block movably connected to the bottom end of the screw. The screw is used to adjust the height position of the adjustment block in the inner cavity of the pole (42), thereby changing the contact point with the top end of the spring (44).

8. The pipe patching tool of claim 2, wherein: The magnetic block (52) is fixedly disposed on the outer end face of the central piston (34), and the electromagnet part (51) is used to attract and fix the magnetic block (52).

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