Automatic cleaning line and method for precast pile prestressed end face flange

Abstract

The application provides an automatic cleaning production line and method for prestressed end face flanges of precast piles. The automatic cleaning production line comprises, in sequence along the conveying direction of the prestressed end face flanges, an online conveying device, a first positioning conveying device, a turnover device, a second positioning conveying device, and an offline conveying device; a first cleaning device distributed above the first positioning conveying device; and a second cleaning device distributed above the second positioning conveying device. The first positioning conveying device and the second positioning conveying device both have a clamping driving source and a pair of openable and closable clamping jaws. The first cleaning device has a first scraper, and the second cleaning device has a second scraper and a third scraper. The application can automatically convey and clean the prestressed end face flanges, complete the automatic cleaning work of the concrete on the surface of the prestressed end face flanges, effectively save labor costs, improve cleaning efficiency and quality, and avoid the adverse phenomenon of pits on the surface of the prestressed end face flanges of the precast piles caused by iron shovel knocking.

Description

Technical Field

[0001] This invention relates to the field of precast pile production technology, and in particular to an automatic cleaning production line for the prestressed end flange of a precast pile, and an automatic cleaning method using the same production line. Background Technology

[0002] In the production process of precast piles, the reinforcing cage (i.e., steel reinforcement skeleton) is first made, then the reinforcing cage is placed into a mold, cement is poured in, and finally formed into a precast pile. Typically, the reinforcing cage includes the main reinforcing cage, a head plate end plate assembly fixed to one end of the main reinforcing cage, and a tail plate end plate assembly fixed to the other end of the main reinforcing cage. The head plate end plate assembly includes an end plate and a head plate flange fastened with several bolts, and a sleeve riveted to the outer circumference of the end plate. The tail plate end plate assembly also includes an end plate and a tail plate flange fastened with several bolts, and a sleeve riveted to the outer circumference of the end plate. Both the head plate flange and the tail plate flange are prestressed end face flanges.

[0003] Currently, in automated cage rebar production lines, prestressed end flanges (i.e., head flanges and tail flanges) are inserted into the mold along with the cage rebar. During demolding, the prestressed end flanges are removed from both ends of the precast pile before flowing into the next round of automated cage rebar production. However, a layer of concrete adheres to the surface of the prestressed end flanges after demolding. If the prestressed end flanges flow directly into the next round of automated cage rebar production, it will lead to a large accumulation of concrete residue on the automated cage rebar production line equipment, increasing equipment failure rate and affecting production efficiency and quality. Therefore, before the prestressed end flanges flow into the next production stage after being removed, the concrete on the surface of the prestressed end flanges needs to be cleaned thoroughly.

[0004] In existing technologies, the cleaning of prestressed end face flanges is done by workers on the ground. Workers need to move and flip the prestressed end face flanges. The prestressed end face flanges used in automated cage reinforcement production lines weigh 15-62 kg, and workers also need to use shovels to knock and scrape them clean. This method is inefficient, has high labor costs, is physically demanding, and poses certain risks during handling. The knocking with shovels can cause dents on the surface of the prestressed end face flanges, reducing their service life. Summary of the Invention

[0005] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide an automatic cleaning production line for prestressed end flanges of precast piles, which can automatically clean the concrete adhering to the surface of the prestressed end flange.

[0006] To achieve the above objectives, the present invention provides an automatic cleaning production line for prestressed end flanges of precast piles, used for cleaning prestressed end flanges. The automatic cleaning production line includes an upper conveying device, a first positioning conveying device, a flipping device, a second positioning conveying device, and an lower conveying device, which are sequentially distributed along the conveying direction of the prestressed end flange; a first cleaning device distributed above the first positioning conveying device; and a second cleaning device distributed above the second positioning conveying device.

[0007] The online conveying device includes a fixed first frame and several online conveying rollers that are rotatably mounted on the first frame;

[0008] The first positioning conveying device and the second positioning conveying device both include a fixedly installed second frame, several positioning conveying rollers that are rotatably mounted on the second frame, and a positioning clamping assembly mounted on the second frame. The positioning clamping assembly includes a clamping drive source and a pair of openable and closable clamping jaws. The clamping drive source is kinetically connected to the pair of clamping jaws.

[0009] The flipping device includes a fixed third frame, a flipping frame rotatably mounted on the third frame, a flipping drive source mounted on the third frame, and several input rollers and output rollers rotatably mounted on the flipping frame and distributed vertically opposite each other. The flipping drive source is connected to the flipping frame in a transmission manner. The flipping frame has flange inlets and outlets. When the flange inlets and outlets face the first positioning conveying device, the input rollers are positioned at the bottom. When the flange inlets and outlets face the second positioning conveying device, the output rollers are positioned at the bottom.

[0010] The offline conveying device includes a fixedly installed fourth frame and several offline conveying rollers that are rotatably installed on the fourth frame;

[0011] The first cleaning device includes a fixed fifth frame, a first cutter head base plate that can be moved up and down and rotatably mounted on the fifth frame, several first cutter holders that are all mounted on the bottom of the first cutter head base plate, and a first scraper that is mounted on the bottom of each first cutter holder;

[0012] The second cleaning device includes a fixed sixth frame, a second cutter head base plate that can be moved up and down and rotatably mounted on the sixth frame, several second cutter holders that are all mounted on the bottom of the second cutter head base plate, a second scraper mounted on the bottom of each second cutter holder, an inner hole cleaning base that can be moved up and down and mounted on the bottom of the second cutter head base plate, a third cutter holder mounted on the inner hole cleaning base plate, and a third scraper mounted on the outer side of the third cutter holder. The third scraper is distributed in the middle position of the second cutter head base plate.

[0013] The preferred embodiment of the above technical solution is as follows: the online conveying device further includes an online conveying drive source fixed to the first frame, the online conveying drive source is connected to several online conveying rollers, and one of the online conveying rollers in the online conveying device is connected to one of the positioning conveying rollers in the first positioning conveying device.

[0014] The offline conveying device also includes an offline conveying drive source fixed to the fourth frame. The offline conveying drive source is drivenly connected to several offline conveying rollers. One of the offline conveying rollers in the offline conveying device is drivenly connected to one of the positioning conveying rollers in the second positioning conveying device.

[0015] The preferred embodiment of the above technical solution is as follows: the online conveying device further includes at least one set of conveying control mechanisms arranged on the conveying path of the prestressed end face flange. Each set of conveying control mechanisms includes a flange detection component and an online stop component arranged sequentially and adjacently along the conveying direction of the prestressed end face flange. The online stop component includes an online stop drive source installed on the first frame and a liftable flange stop rod. The online stop drive source is connected to the flange stop rod in a transmission manner. The flange stop rod is arranged in a liftable manner in the gap between two adjacent online conveying rollers.

[0016] The preferred embodiment of the above technical solution is as follows: the positioning and clamping assembly further includes a pair of clamping fixing seats, both fixed to the second frame, a clamping guide rod fixed between the pair of clamping fixing seats, a pair of jaw mounting seats movably mounted on the clamping guide rod, and a linkage unit connected between the pair of jaw mounting seats. The clamping drive source is a cylinder, and the piston rod of the cylinder is connected to one of the jaw mounting seats in the pair. The pair of clamping jaws are respectively fixed on the pair of jaw mounting seats, and the pair of clamping jaws are symmetrically distributed along a direction perpendicular to the conveying direction of the prestressed end face flange.

[0017] The preferred embodiment of the above technical solution is as follows: the first positioning conveying device and the second positioning conveying device both include a positioning stop assembly, the positioning clamping assembly and the positioning stop assembly are distributed sequentially along the conveying direction of the prestressed end face flange; the positioning stop assembly includes a positioning stop drive source and a liftable flange stop component, the positioning stop drive source is connected to the flange stop component in a transmission connection, and the flange stop component is movably arranged in the gap between two adjacent positioning conveying rollers.

[0018] The preferred embodiment of the above technical solution is as follows: the prestressed end face flange includes a head plate flange with a sealing plate fixed in the middle and a tail plate flange with a flange hole in the middle. The off-line conveying device also includes a head and tail plate detection assembly, an off-line stop assembly, and a first unloading station and a second unloading station, both located on the conveying path of the prestressed end face flange. The first unloading station and the second unloading station are distributed sequentially along the conveying direction of the prestressed end face flange. The head and tail plate detection assembly includes a detection sensor for aligning the sealing plate or the flange hole. The off-line stop assembly includes an off-line stop drive source installed on the fourth frame and a liftable flange stop component. The off-line stop drive source is connected to the flange stop component in a transmission manner. The flange stop component is movably arranged in the gap between two adjacent off-line conveying rollers and is arranged between the first unloading station and the second unloading station.

[0019] The preferred embodiment of the above technical solution is as follows: the offline conveying device further includes a roller brush coating assembly located at the inlet end of the offline conveying device. The roller brush coating assembly includes a coating mounting frame fixed to the fourth frame, a holding trough fixed to the coating mounting frame, and an upper coating roller and a lower coating roller that are rotatably mounted on the coating mounting frame and arranged side by side. The upper coating roller and the lower coating roller are in contact with each other. At least a portion of the lower coating roller is accommodated in the holding trough. The upper coating roller and the first offline conveying roller among the plurality of offline conveying rollers are distributed sequentially and closely together along the conveying direction of the prestressed end face flange.

[0020] The preferred embodiment of the above technical solution is as follows: the fifth frame includes several first fixed columns whose lower ends are fixed on the second frame of the first positioning and conveying device; the first cleaning device further includes a first cleaning lifting drive source, a first lifting frame that can be moved up and down on the first fixed columns, a first cleaning rotation drive source installed on the first lifting frame, and a first rotating shaft that can be rotatably installed in the first lifting frame; the first cleaning lifting drive source is connected to the first lifting frame; the first cleaning rotation drive source is connected to the first rotating shaft; and the first cutter head base plate is fixed to the bottom of the first rotating shaft.

[0021] The sixth frame includes several second fixed columns whose lower ends are fixed on the second frame of the second positioning and conveying device. The second cleaning device also includes a second cleaning lifting drive source, a second lifting frame that can be moved up and down on the second fixed columns, a second cleaning rotation drive source that is installed on the second lifting frame, and a second rotating shaft that can be rotatably installed in the second lifting frame. The second cleaning lifting drive source is driven to the second lifting frame, the second cleaning rotation drive source is driven to the second rotating shaft, and the second cutter head base plate is fixed to the bottom of the second rotating shaft.

[0022] The preferred embodiment of the above technical solution is as follows: a first wire brush is also fixed in the first tool holder, and the first scraper and the first wire brush are distributed at intervals along the rotation direction of the first tool disc base plate;

[0023] The second cutter holder also has a second wire brush fixed in it, and the second scraper and the second wire brush are distributed at intervals along the rotation direction of the second cutter disc base plate.

[0024] The preferred embodiment of the above technical solution is as follows: the second cleaning device further includes a lifting assembly connected between the second cutter head base plate and the inner hole cleaning base. The lifting assembly includes a lifting mounting seat fixed to the bottom of the second cutter head base plate, a pair of side lifting plates that are movable up and down on the lifting mounting seat via linear guide rail assemblies, a lifting connecting plate fixed between the pair of side lifting plates, and a first compression spring with its upper end mounted on the lifting connecting plate. The inner hole cleaning base is fixed between the pair of side lifting plates, and the lower end of the first compression spring abuts against the inner hole cleaning base.

[0025] The preferred embodiment of the above technical solution is as follows: the second cleaning device further includes a cleaning guide shaft fixed to the inner hole cleaning base, a cutter head mounting plate movably installed on the cleaning guide shaft, and a second compression spring with its inner end fixed to the cutter head mounting plate. The cutter head mounting plate has a fan-shaped hole. The third cutter holder is hinged to the cutter head mounting plate by a shaft screw and has a swing shaft parallel to the shaft screw fixed thereon. The swing shaft is movably accommodated in the fan-shaped hole. The outer end of the second compression spring abuts against the third cutter holder.

[0026] This application also provides an automatic cleaning method for the prestressed end face flange of precast piles, used for cleaning the prestressed end face flange. The prestressed end face flange includes a head plate flange with a sealing plate fixed in the middle and a tail plate flange with a flange hole in the middle. The automatic cleaning method uses the automatic cleaning production line described above, and the automatic cleaning method includes the following steps:

[0027] S1. The upper conveying roller of the upper conveying device rotates, conveying the prestressed end face flange forward to the first positioning conveying device, with the inner surface of the prestressed end face flange on the first positioning conveying device facing upward.

[0028] S2. The positioning conveying roller of the first positioning conveying device rotates, conveying the prestressed end face flange forward to the positioning clamping assembly; the clamping drive source is activated, driving a pair of clamping jaws to close, so that the pair of clamping jaws clamp the outer periphery of the prestressed end face flange.

[0029] S3. The first cutter head base plate of the first cleaning device descends until the first scraper contacts the inner surface of the prestressed end face flange; the first cutter head base plate of the first cleaning device rotates, and the inner surface of the prestressed end face flange is cleaned by the first scraper.

[0030] S4. The clamping drive source of the first positioning conveying device is reset, causing the pair of clamping jaws to open, so that the pair of clamping jaws release the prestressed end face flange, and the positioning conveying roller of the first positioning conveying device continues to convey the prestressed end face flange forward.

[0031] S5. The flange inlet and outlet of the flipping device are oriented toward the first positioning conveying device. The prestressed end face flange conveyed forward by the first positioning conveying device enters the flipping frame through the flange inlet and outlet. The input roller rotates and continues to convey the prestressed end face flange forward.

[0032] S6. The flipping drive source is activated, causing the flipping frame to rotate 180°, so that the flange inlet and outlet face the second positioning conveying device; the output roller rotates, conveying the prestressed end face flange forward to the second positioning conveying device, with the outer surface of the prestressed end face flange on the second positioning conveying device facing upward.

[0033] S7. The positioning conveying roller of the second positioning conveying device rotates, conveying the prestressed end face flange forward to the positioning clamping assembly; the clamping drive source is activated, driving a pair of clamping jaws to close, so that the pair of clamping jaws clamp the outer periphery of the prestressed end face flange.

[0034] S8. The second cutter head base plate of the second cleaning device descends until the second scraper contacts the outer surface of the prestressed end flange;

[0035] When the prestressed end face flange is a head plate flange, the third scraper abuts against the sealing plate, and the second cutter disc base plate of the second cleaning device rotates, cleaning the outer surface of the head plate flange through the second scraper and the third scraper;

[0036] When the prestressed end face flange is a tail plate flange, the third scraper abuts against the wall of the flange hole, the second cutter disc base plate of the second cleaning device rotates, and the outer surface of the tail plate flange is cleaned by the second scraper, and the wall of the flange hole is cleaned by the third scraper.

[0037] S9. The clamping drive source of the second positioning conveying device is reset, causing the pair of clamping jaws to open, so that the pair of clamping jaws release the prestressed end face flange, and the positioning conveying roller of the second positioning conveying device continues to convey the prestressed end face flange forward until the prestressed end face flange is conveyed forward to the lower conveying device.

[0038] S10. The conveying roller of the offline conveying device rotates, conveying the prestressed end face flange forward to the unloading station.

[0039] As described above, the automatic cleaning production line and method for prestressed pile end flanges of the present invention have the following beneficial effects:

[0040] This application can automatically transport and clean the prestressed end flange, complete the automatic cleaning of the concrete on the surface of the prestressed end flange, effectively save labor costs, improve cleaning efficiency and quality, and avoid the undesirable phenomenon of pits appearing on the surface of the prestressed end flange of the precast pile due to the impact of the shovel. Attached Figure Description

[0041] Figure 1 This is a structural schematic diagram of the headplate flange in this application.

[0042] Figure 2 This is a structural schematic diagram of the tail flange in this application.

[0043] Figure 3 This is a schematic diagram of the automatic cleaning production line in this application.

[0044] Figure 4 This is a schematic diagram of the online conveying device in this application.

[0045] Figure 5 This is an assembly diagram of the first frame, the upper conveyor roller, and the guide assembly in this application.

[0046] Figure 6 for Figure 5 A bottom view.

[0047] Figure 7 for Figure 5 Side view.

[0048] Figure 8 This is a schematic diagram of the upper-line stop component in the upper-line conveyor device.

[0049] Figure 9 This is a schematic diagram of the flange detection assembly in the online conveying device.

[0050] Figure 10 This is a schematic diagram of the structure of the first positioning conveying device and the second positioning conveying device in this application. In the diagram, a pair of clamping jaws are in the open state.

[0051] Figure 11 This is a schematic diagram of the structure of the first positioning conveying device and the second positioning conveying device in this application. In the diagram, a pair of clamping jaws are in a closed state.

[0052] Figure 12 This diagram illustrates the relationship between the second frame, the in-station borehole detection component, the through-beam detection component, and the error-proofing detection component in the first and second positioning conveying devices.

[0053] Figure 13 This is a schematic diagram of the structure of the second frame in the first positioning conveyor and the second positioning conveyor.

[0054] Figure 14 for Figure 13 Side view.

[0055] Figure 15 This is a schematic diagram of the positioning clamping assembly in the first and second positioning conveying devices.

[0056] Figure 16 for Figure 15 A schematic diagram of the clamping drive source.

[0057] Figure 17 for Figure 15 Assembly diagram of the clamping jaw and jaw mounting base on the right side.

[0058] Figure 18 for Figure 15 A schematic diagram of the middle linkage unit.

[0059] Figure 19 This is a schematic diagram of the positioning and stopping components in the first and second positioning conveying devices.

[0060] Figure 20 This is a schematic diagram of the structure of the in-station borehole detection component in the first and second positioning conveying devices.

[0061] Figure 21 This is a schematic diagram of the structure of the photoelectric detection component in the first and second positioning and conveying devices.

[0062] Figure 22 This is a schematic diagram of the error prevention detection component in the first and second positioning conveying devices.

[0063] Figure 23 This is a schematic diagram of the brush cleaning assembly in the first and second positioning conveying devices.

[0064] Figure 24 This is a schematic diagram of the flipping device in this application.

[0065] Figure 25 This is a schematic diagram of the flipping frame in the flipping device.

[0066] Figure 26 This is a schematic diagram of the offline conveyor device in this application.

[0067] Figure 27 This is an assembly diagram of the fourth frame, the lower conveyor roller, and the guide unit in the lower conveyor device.

[0068] Figure 28 for Figure 27 Top view.

[0069] Figure 29 for Figure 27 Side view.

[0070] Figure 30 This is a schematic diagram of the offline stop component in the offline conveyor.

[0071] Figure 31 for Figure 30 A sectional view.

[0072] Figure 32 This is a schematic diagram of the head and tail plate detection components in the offline conveyor.

[0073] Figure 33 This is a schematic diagram of the positioning detection component in the offline conveying device.

[0074] Figure 34 This is a schematic diagram of the roller brush coating component in the offline conveying device.

[0075] Figure 35 for Figure 34 Side view.

[0076] Figure 36 for Figure 35 A sectional view along the AA direction.

[0077] Figure 37 This is a schematic diagram of the structure of the first cleaning device in this application.

[0078] Figure 38 This is an assembly diagram of the first cutter head base plate, the first cutter holder, and the first scraper in the first cleaning device.

[0079] Figure 39 This is a schematic diagram of the structure of the second cleaning device in this application.

[0080] Figure 40 This is a schematic diagram of the assembly of the second cutter head base plate, the second cutter holder, and the second scraper in the second cleaning device.

[0081] Figure 41 This is an assembly diagram of the inner hole cleaning base, the third blade holder, and the third scraper in the second cleaning device.

[0082] Figure 42 This is a schematic diagram of the lifting assembly in the second cleaning device. Detailed Implementation

[0083] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0084] It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and objectives of the invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.

[0085] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.

[0086] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0087] This invention provides an automated cleaning production line for prestressed pile end face flanges, and an automated cleaning method using the automated cleaning production line. Both the automated cleaning production line and the automated cleaning method are used to clean prestressed end face flanges. The prestressed end face flange includes... Figure 1 The headplate flange 101 shown, and Figure 2 The tail flange 102, head flange 101, and tail flange 102 shown all have a ring of through holes to allow for detachable connection between the head flange 101 and the end plate, and between the tail flange 102 and the end plate. Meanwhile, a sealing plate 103 is fixed in the middle of the head flange 101, and a through flange hole 104 is formed in the middle of the tail flange 102.

[0088] In addition, for ease of description, in the following embodiments, the conveying direction of the prestressed end face flange of the automatic cleaning production line is defined as the forward direction.

[0089] like Figure 3 As shown, the automatic cleaning production line involved in this application includes an upper conveyor 200, a first positioning conveyor 300, a flipping device 500, a second positioning conveyor 400, an lower conveyor 600, a first cleaning device 700, and a second cleaning device 800; wherein, the upper conveyor 200, the first positioning conveyor 300, the flipping device 500, the second positioning conveyor 400, and the lower conveyor 600 are distributed from back to front along the conveying direction of the prestressed end flange forward; the first cleaning device 700 is distributed above the first positioning conveyor 300; and the second cleaning device 800 is distributed above the second positioning conveyor 400.

[0090] like Figure 3 and Figure 4 As shown, the online conveying device 200 includes a first frame 21 that is fixedly installed, and several online conveying rollers 22 that are rotatably installed on the first frame 21. The several online conveying rollers 22 are distributed at intervals in front and behind, and each online conveying roller 22 extends horizontally.

[0091] like Figure 3 and Figure 10 As shown, the first positioning conveying device 300 and the second positioning conveying device 400 have the same structure. Both the first positioning conveying device 300 and the second positioning conveying device 400 include a fixedly installed second frame 41, several positioning conveying rollers 42 that are rotatably mounted on the second frame 41, and a positioning clamping assembly 43 mounted on the second frame 41. The several positioning conveying rollers 42 are distributed at intervals in front and behind, and each positioning conveying roller 42 extends horizontally. The positioning clamping assembly 43 includes a clamping drive source 431 and a pair of openable and closable clamping jaws 432. The clamping drive source 431 is connected to the pair of clamping jaws 432 in a transmission manner, driving the pair of clamping jaws 432 to close or open.

[0092] like Figure 3 and Figure 24As shown, the flipping device 500 includes a fixedly mounted third frame 51, a flipping frame 52 rotatably mounted on the third frame 51, a flipping drive source 53 mounted on the third frame 51, and several input rollers 54 and output rollers 55, all rotatably mounted on the flipping frame 52 and arranged vertically opposite each other. The flipping drive source 53 is connected to the flipping frame 52 and drives the flipping frame 52 to rotate. The flipping frame 52 has flange inlets and outlets 521. The several input rollers 54 are arranged front to back, and each input roller 54 extends horizontally. The several output rollers 55 are also arranged front to back, and each output roller 55 extends horizontally. A flipping cavity for accommodating the prestressed end face flange is formed between the several input rollers 54 and the several output rollers 55. By driving the flipping frame 52 to flip 180° by the flipping drive source 53, the flange inlet and outlet 521 can be aligned with the first positioning conveyor 300 backward or with the second positioning conveyor 400 forward, and the input roller 54 or the output roller 55 can be positioned downward. Specifically, when the flange inlet and outlet 521 is facing the first positioning conveyor 300, the input roller 54 is positioned downward; when the flange inlet and outlet 521 is facing the second positioning conveyor 400, the output roller 55 is positioned downward.

[0093] like Figure 3 and Figure 26 As shown, the offline conveying device 600 includes a fixedly installed fourth frame 61 and several offline conveying rollers 62 that are rotatably mounted on the fourth frame 61. The several offline conveying rollers 62 are distributed at intervals in front and behind, and each offline conveying roller 62 extends horizontally.

[0094] like Figure 3 and Figure 37 As shown, the first cleaning device 700 includes a fixedly mounted fifth frame 71, a first cutter head base plate 72 that is movable up and down and rotatably mounted on the fifth frame 71, several first cutter holders 73 that are mounted on the bottom of the first cutter head base plate 72, and first scrapers 74 mounted on the bottom of each first cutter holder 73.

[0095] like Figure 3 and Figure 39 As shown, the second cleaning device 800 includes a fixedly mounted sixth frame 81, a second cutter head base plate 82 that is movable up and down and rotatably mounted on the sixth frame 81, several second cutter holders 83 that are mounted on the bottom of the second cutter head base plate 82, second scrapers 84 mounted on the bottom of each second cutter holder 83, an inner hole cleaning base 85 that is movable up and down mounted on the bottom of the second cutter head base plate 82, a third cutter holder 86 mounted on the inner hole cleaning base 85, and a third scraper 87 mounted on the outer side of the third cutter holder 86. The third scraper 87 is distributed in the middle position of the second cutter head base plate 82.

[0096] This application also provides an automatic cleaning method for the prestressed end flange of precast piles, which uses the aforementioned automatic cleaning production line. The aforementioned automatic cleaning production line, in its initial state: as follows... Figure 10 As shown, in both the first positioning conveyor 300 and the second positioning conveyor 400, a pair of clamping jaws 432 are in the open state. The flange inlet / outlet 521 of the flipping device 500 is aligned rearward with the front end of the first positioning conveyor 300, and several input rollers 54 are distributed below several output rollers 55. The automatic cleaning method implemented using the above-described automatic cleaning production line includes the following steps:

[0097] S1. The upper conveying roller 22 of the upper conveying device 200 rotates, conveying the prestressed end face flange forward to the first positioning conveying device 300, with the inner surface of the prestressed end face flange on the first positioning conveying device 300 facing upward.

[0098] S2. The positioning conveying roller 42 of the first positioning conveying device 300 rotates, conveying the prestressed end face flange forward to the positioning clamping assembly 43; the clamping drive source 431 in the first positioning conveying device 300 actuates, driving a pair of clamping jaws 432 to close, so that the pair of clamping jaws 432 clamp the outer periphery of the prestressed end face flange, such as Figure 11 As shown, the position of the positioning clamping component 43 in the first positioning conveying device 300 is the cleaning station;

[0099] S3. The first cutter head base plate 72 of the first cleaning device 700 descends until the first scraper 74 contacts the inner surface of the prestressed end face flange; the first cutter head base plate 72 of the first cleaning device 700 rotates and cleans the inner surface of the prestressed end face flange through the first scraper 74.

[0100] S4. The clamping drive source 431 of the first positioning and conveying device 300 is reset, driving a pair of clamping jaws 432 to open, causing the pair of clamping jaws 432 to loosen the prestressed end face flange, as shown. Figure 10 As shown, the positioning conveying roller 42 of the first positioning conveying device 300 continues to convey the prestressed end face flange forward.

[0101] S5. Based on the initial structure of the flange inlet / outlet 521 of the flipping device 500 facing the first positioning conveying device 300, the prestressed end face flange conveyed forward by the first positioning conveying device 300 enters the flipping frame 52 through the flange inlet / outlet 521, and the prestressed end face flange is supported on the input roller 54; the input roller 54 in the flipping device 500 rotates and continues to convey the prestressed end face flange forward to the set position.

[0102] S6. The flipping drive source 53 is activated, causing the flipping frame 52 to rotate 180°, so that the flange inlet and outlet 521 face the second positioning conveying device 400. After flipping 180°, the outer surface of the prestressed end face flange faces upward, and the prestressed end face flange is supported on the output roller 55. The output roller 55 in the flipping device 500 rotates, conveying the prestressed end face flange forward to the second positioning conveying device 400, so the outer surface of the prestressed end face flange on the second positioning conveying device 400 faces upward.

[0103] S7. The positioning conveying roller 42 of the second positioning conveying device 400 rotates, conveying the prestressed end face flange forward to the positioning clamping assembly 43; the clamping drive source 431 in the second positioning conveying device 400 actuates, driving a pair of clamping jaws 432 to close, so that the pair of clamping jaws 432 clamp the outer periphery of the prestressed end face flange, such as Figure 11 As shown, the location of the positioning clamping component 43 in the second positioning conveying device 400 is the cleaning station;

[0104] S8. The second cutter head base plate 82 of the second cleaning device 800 descends until the second scraper 84 contacts the outer surface of the prestressed end face flange. When the prestressed end face flange is the head plate flange 101, the third scraper 87 abuts against the sealing plate 103, and the second cutter head base plate 82 of the second cleaning device 800 rotates to clean the outer surface of the head plate flange 101 through the second scraper 84 and the third scraper 87. When the prestressed end face flange is the tail plate flange 102, the third scraper 87 abuts against the hole wall of the flange hole 104, and the second cutter head base plate 82 of the second cleaning device 800 rotates to clean the outer surface of the tail plate flange 102 through the second scraper 84 and the hole wall of the flange hole 104 through the third scraper 87.

[0105] S9. The clamping drive source 431 of the second positioning and conveying device 400 is reset, driving a pair of clamping jaws 432 to open, causing the pair of clamping jaws 432 to loosen the prestressed end face flange, as shown. Figure 10 As shown, the positioning conveying roller 42 of the second positioning conveying device 400 continues to convey the prestressed end face flange forward until the prestressed end face flange is conveyed forward to the lower conveying device 600.

[0106] S10, the offline conveying roller 62 of the offline conveying device 600 rotates, conveying the prestressed end face flange forward to the unloading station.

[0107] Therefore, this application can automatically transport and clean the prestressed end flange, complete the automatic cleaning of the concrete on the surface of the prestressed end flange, effectively save labor costs, improve cleaning efficiency and quality, and avoid the undesirable phenomenon of pits appearing on the surface of the prestressed end flange of the precast pile due to the hammering of the shovel.

[0108] Furthermore, such as Figure 10 As shown, the online conveying device 200 also includes an online conveying drive source 23 fixed to the first frame 21. The online conveying drive source 23 is connected to several online conveying rollers 22 for transmission, driving the several online conveying rollers 22 to rotate. Figure 26 As shown, the offline conveying device 600 also includes an offline conveying drive source 63 fixed to the fourth frame 61. The offline conveying drive source 63 is driven by several offline conveying rollers 62, driving the rollers 62 to rotate. Therefore, both the online conveying device 200 and the offline conveying device 600 are equipped with independent conveying drive sources. Preferably, the positioning conveying rollers 42 in the first positioning conveying device 300 and the second positioning conveying device 400 are unpowered conveying rollers. That is, one online conveying roller 22 in the online conveying device 200 is driven by one positioning conveying roller 42 in the first positioning conveying device 300, realizing synchronous rotation and conveying between the first positioning conveying device 300 and the online conveying device 200; one offline conveying roller 62 in the offline conveying device 600 is driven by one positioning conveying roller 42 in the second positioning conveying device 400, realizing synchronous rotation and conveying between the second positioning conveying device 400 and the offline conveying device 600. This can save equipment costs.

[0109] The preferred structures of the online conveyor 200, the first positioning conveyor 300, the flipping device 500, the second positioning conveyor 400, the offline conveyor 600, the first cleaning device 700, and the second cleaning device 800 in the automatic cleaning production line are described below.

[0110] 200 online conveyor devices

[0111] like Figure 4 As shown, the online conveying device 200 also includes at least one set of conveying control mechanisms disposed on the conveying path of the prestressed end face flange. In this embodiment, there are two sets of conveying control mechanisms, distributed at intervals along the conveying direction of the prestressed end face flange. Of course, in other embodiments, there may be one, three, or more sets of conveying control mechanisms, the specific number of which is determined according to actual needs. Each set of conveying control mechanisms includes a flange detection component 24 and an online stop component 25. The flange detection component 24 and the online stop component 25 are arranged adjacent to each other along the conveying direction of the prestressed end face flange, that is, the flange detection component 24 is arranged adjacent to the rear side of the online stop component 25. Figure 4 and Figure 8 As shown, the upper line stop assembly 25 includes an upper line stop drive source 251 installed on the first frame 21 and a liftable flange stop bar 252. The upper line stop drive source 251 is connected to the flange stop bar 252 in a transmission connection. The flange stop bar 252 is movably arranged in the gap between two adjacent upper line conveying rollers 22.

[0112] The prestressed end flange to be cleaned is placed flat at the inlet end of the upper conveyor device 200. The upper conveyor drive source 23 is activated, driving several upper conveyor rollers 22 to rotate, which then convey the prestressed end flange forward. During the forward conveying of the prestressed end flange by the upper conveyor rollers 22, the flange detection component 24 is used to detect whether there is a prestressed end flange behind the upper stop component 25, and to determine whether the prestressed end flange has been conveyed forward to the rear of the upper stop component 25. Initially, the flange stop bar 252 is in the raised position. During the automatic cleaning process of the prestressed end face flange, when there is no prestressed end face flange at the previous station of the rear upper stop assembly 25, the upper stop drive source 251 in the rear upper stop assembly 25 drives the rear flange stop bar 252 to descend, and the prestressed end face flange is conveyed forward by the rotation of the upper conveyor roller 22 until the front flange detection assembly 24 detects that the prestressed end face flange has been conveyed forward to the rear side of the front upper stop assembly 25. Then, the upper stop drive source 251 in the rear upper stop assembly 25 drives the rear flange stop bar 252 to rise, stopping the subsequent prestressed end face flange at that point. In this way, through the cooperation of the flange detection assembly 24 and the upper stop assembly 25, the conveying progress of the prestressed end face flange can be effectively controlled, so that the prestressed end face flange is conveyed forward in an orderly and intermittent manner, meeting the cleaning time requirements of subsequent cleaning processes.

[0113] Furthermore, such as Figure 5 and Figure 6 As shown, the upper conveyor drive source 23 is a motor, preferably a variable frequency geared motor. This motor is fixedly mounted on the first frame 21 via a motor mounting bracket and is distributed below the upper conveyor rollers 22. The upper conveyor drive source 23 is connected to several upper conveyor rollers 22 via a sprocket and chain mechanism. Meanwhile, as... Figure 5 and Figure 7 As shown, the first frame 21 is a frame structure welded from multiple columns and beams. Each column is equipped with a foot cup 111 and a foot fixing seat 112 at its lower end. The foot cup 111 is used to adjust the height of the column it is located on, that is, to adjust the overall height and balance of the first frame 21. The foot fixing seat 112 is used to fix the first frame 21 to the ground, improving the stability of the upper conveyor device 200. In addition, a roller protective cover is fixed to the upper end of the first frame 21 to cover the sprocket and chain mechanism and prevent the sprocket and chain mechanism from being contaminated by concrete residue.

[0114] Furthermore, such as Figure 8As shown, the upper line stop assembly 25 has two flange stop rods 252, which are arranged side by side along the direction perpendicular to the conveying direction of the prestressed end face flange. The upper line stop assembly 25 also includes an upper line stop mounting plate 253 fixed to the first frame 21 and an upper line stop connecting plate 254. The upper line stop mounting plate 253 is distributed below several upper line conveying rollers 22. Both flange stop rods 252 are mounted on the upper line stop mounting plate 253 in a liftable manner through oil-free bushings. The lower ends of both flange stop rods 252 are fixed to the upper line stop connecting plate 254. The upper line stop drive source 251 is a cylinder fixed to the bottom of the upper line stop mounting plate 253. The lower end of the piston rod of the cylinder is connected to the upper line stop connecting plate 254 through an adapter. Thus, when the cylinder piston rod of the upper stop drive source 251 extends downward, the two flange stop rods 252 are driven to move downward simultaneously through the upper stop connecting plate 254, no longer stopping the prestressed end face flange; when the cylinder piston rod of the upper stop drive source 251 retracts upward, the two flange stop rods 252 are driven to move upward simultaneously through the upper stop connecting plate 254, which can stop the prestressed end face flange.

[0115] Furthermore, such as Figure 8 As shown, the upper stop assembly 25 also includes a first detection bracket plate 255 fixed to the upper stop mounting plate 253, and two first proximity switches 256 both fixed to the first detection bracket plate 255. The two first proximity switches 256 are arranged side by side and can both sense the upper stop connecting plate 254. When the upper stop drive source 251 drives the two flange stop rods 252 to move down simultaneously through the upper stop connecting plate 254, the lower first proximity switch 256 can sense the upper stop connecting plate 254 and is triggered; when the upper stop drive source 251 drives the two flange stop rods 252 to move up simultaneously through the upper stop connecting plate 254, the upper first proximity switch 256 can sense the upper stop connecting plate 254 and is triggered. Therefore, based on the signals from the upper and lower first proximity switches 256, the position information of the flange stop lever 252 is accurately fed back, thereby accurately determining whether the flange stop lever 252 is in a descending or ascending state, thus improving control accuracy.

[0116] Preferably, such as Figure 8 As shown, a first damping ring 257 is fixed to the upper end of each flange stop bar 252. The first damping ring 257 is used to abut against the outer circumferential surface of the prestressed end face flange to buffer the impact force when stopping the prestressed end face flange and avoid damage to the prestressed end face flange. A first sensor cover 258 is fixed on the first detection bracket plate 255. The two first proximity switches 256 are covered inside the first sensor cover 258 to prevent the two first proximity switches 256 from being contaminated by concrete residue.

[0117] Furthermore, such as Figure 4 As shown, the online conveying device 200 also includes a feeding detection component 26 located at the rear inlet end of the online conveying device 200. The feeding detection component 26 is used to detect whether there is a prestressed end face flange at the inlet end of the online conveying device 200. When the feeding detection component 26 detects that there is a prestressed end face flange at the inlet end of the online conveying device 200, it is determined to be incoming material. The online conveying drive source 23 starts according to the incoming material signal, so that the online conveying device 200 conveys the prestressed end face flange forward.

[0118] Preferably, the flange detection assembly 24 and the material feeding detection assembly 26 in the online conveying device 200 have the same structure, such as... Figure 4 and Figure 9 As shown, both the flange detection assembly 24 and the material feeding detection assembly 26 include a first sensor mounting plate 27 fixed to the first frame 21 and a through-beam sensor 120 fixed to the first sensor mounting plate 27. The transmitter and receiver of the through-beam sensor 120 are arranged facing each other along a direction perpendicular to the conveying direction of the prestressed end face flange. The transmitter and receiver of the through-beam sensor 120 are respectively fixed to the left and right sides of the first frame 21 by a first sensor mounting plate 27. When there is no prestressed end face flange between the transmitter and receiver, the receiver can receive the light emitted by the transmitter; when there is a prestressed end face flange between the transmitter and receiver, the light emitted by the transmitter is blocked by the prestressed end face flange, and the receiver cannot receive the light emitted by the transmitter. Therefore, the presence of a prestressed end face flange can be determined based on the output of the receiver.

[0119] Furthermore, the preferred mounting structure of the flange detection assembly 24 and the feeding detection assembly 26 on the first frame 21 is as follows: the online conveying device 200 further includes a first C-shaped guide rail 28 fixed on the left and right sides of the first frame 21. The first C-shaped guide rail 28 extends straight back and forth. The first sensor mounting plate 27 is tightened in a square nut with screws. The square nut is fitted in the groove of the first C-shaped guide rail 28 with clearance fit, which facilitates the installation of the flange detection assembly 24 and the feeding detection assembly 26 on the first frame 21.

[0120] Furthermore, such as Figure 5 and Figure 6As shown, the upper conveying device 200 also includes two sets of guide components symmetrically arranged left and right along the direction perpendicular to the conveying direction of the prestressed end face flange; each set of guide components includes a first guide mounting plate 29 fixed to the first frame 21 and a first guide rod 210 fixed inside the first guide mounting plate 29. The first guide rod 210 is distributed above the upper conveying roller 22. The first guide rod 210 includes a first guide section 2101, a bending and narrowing section 2102 and a second guide section 2103 connected sequentially from back to front along the conveying direction of the prestressed end face flange. The first guide section 2101 and the second guide section 2103 both extend straight back and forth along the conveying direction of the prestressed end face flange, and the bending and narrowing section 2102 extends obliquely, so that the distance between the first guide section 2101 in the two sets of guide components is greater than the distance between the second guide section 2103. Thus, through the narrowing guidance of the second guide section 2103, the prestressed end face flange is more reliably guided to the center position of the upward conveying device 200, and the prestressed end face flange is better controlled in the set position.

[0121] The working principle of the online conveying device 200 is as follows: After the material is detected by the feeding detection component 26, the online conveying drive source 23 drives the online conveying roller 22 to rotate, realizing the continuous forward conveying of the prestressed end face flange. At the same time, the conveying progress of the prestressed end face flange is controllable through two sets of cooperating flange detection components 24 and online stop components 25. In addition, during the cleaning process, if there is a prestressed end face flange on the first positioning conveying device 300, the online conveying device 200 will not convey the prestressed end face flange to the first positioning conveying device 300; then, when there is no prestressed end face flange on the first positioning conveying device 300, the online conveying device 200 will convey the prestressed end face flange to the first positioning conveying device 300.

[0122] First positioning conveyor 300 and second positioning conveyor 400

[0123] like Figures 10 to 14As shown, in the first positioning conveying device 300 and the second positioning conveying device 400, the second frame 41 is a frame structure welded from multiple columns and beams. There are seven positioning conveying rollers 42. Seven pairs of bearing seats 411, evenly spaced front to back, are fixed on the second frame 41. Two bearing seats 411 in each pair face each other horizontally. Each positioning conveying roller 42 is rotatably supported at its left and right ends in a pair of bearing seats 411, allowing the seven positioning conveying rollers 42 to be rotated within the second frame 41. Additionally, a clearance recess is provided on the middle positioning conveying roller 42 to avoid obstructing the first scraper 74 in the first cleaning device 700. One positioning conveying roller 42 in the first positioning conveying device 300 is connected to an upper conveying roller 22 in the upper conveying device 200 via a sprocket and chain mechanism. Similarly, one positioning conveying roller 42 in the second positioning conveying device 400 is connected to a lower conveying roller 62 in the lower conveying device 600 via a sprocket and chain mechanism. The upper end of the second frame 41 is fixed with a roller protective cover, which covers the sprocket and chain mechanism and the bearing housing 411 to prevent the sprocket and chain mechanism and the bearing housing 411 from being contaminated by concrete residue.

[0124] Preferably, such as Figure 11 and Figure 12 As shown, each column of the second frame 41 is equipped with a foot support assembly 48 at its lower end. The foot support assembly 48 includes a foot plate 481 fixed to the ground by anchor bolts, a column plate 482 fixed to the lower end of the column, an adjusting screw 483 passing through the foot plate 481 and the column plate 482, and an adjusting nut 484 threaded onto the outer periphery of the adjusting screw 483. The adjusting screw 483 abuts against the upper and lower sides of the column plate 482. By adjusting the upper and lower positions of the adjusting nut 484 on the adjusting screw 483, the height of the foot support assembly 48 can be adjusted, thereby adjusting the overall height and level of the second frame 41, and thus adjusting the overall height and level of the first positioning conveyor 300 and the second positioning conveyor 400.

[0125] Preferably, such as Figure 13 As shown, both the first positioning conveying device 300 and the second positioning conveying device 400 are fixedly equipped with two sets of guide units above the second frame 41. Each set of guide units includes a pair of guide components arranged symmetrically from left to right. Each guide component includes a second guide mounting plate 412 fixed to the second frame 41 and a second guide rod 413 fixed to the inner end side of the second guide mounting plate 412. The second guide mounting plate 412 is preferably disposed on the top surface of the roller protective cover, and the second guide rod 413 extends front to back and is distributed on the upper side of the positioning conveying roller 42. Through the second guide rod 413, the prestressed end face flange can be guided towards the center position of the first positioning conveying device 300 and the second positioning conveying device 400, preventing the prestressed end face flange from excessively deviating.

[0126] Furthermore, such as Figures 12 to 14 As shown, both the first positioning conveying device 300 and the second positioning conveying device 400 include a first slag collection box 414 fixed to the second frame 41. The first slag collection box 414 has slag collection troughs distributed below several positioning conveying rollers 42. The first slag collection box 414 has a slag discharge port that communicates with the slag collection troughs. The first slag collection box 414 has an openable and closable first material outlet baffle 415 at the slag discharge port. When the first cleaning device 700 and the second cleaning device 800 clean the prestressed end face flange, the cleaned concrete residue falls into the slag collection trough through the gap between two adjacent positioning conveying rollers 42, preventing concrete residue leakage. When the slag collection trough needs to discharge slag, the first material outlet baffle 415 can be opened. Preferably, the upper end of the first feed outlet baffle 415 is hinged to the first slag collection box 414. Two sets of locking components distributed on the front and rear sides of the first feed outlet baffle 415 are fixed on the end face of the first slag collection box 414. Each set of locking components includes a fixing buckle 416 fixed to the first slag collection box 414 and a locking plate 417 rotatably mounted on the first feed outlet baffle 415 via a hinge. When the locking plate 417 is rotated downward to a horizontal position, the locking plate 417 is engaged in the fixing buckle 416, and the first feed outlet baffle 415 is in a closed position. When the locking plate 417 is rotated upward to a vertical position, the locking plate 417 disengages from the fixing buckle 416, and the first feed outlet baffle 415 can be rotated upward to open.

[0127] Furthermore, such as Figure 10 and Figure 11 As shown, in the front-to-back direction, the positioning and clamping assembly 43 is installed at the middle position of the second frame 41. A pair of clamping jaws 432 in the positioning and clamping assembly 43 are symmetrically distributed on the upper side of the positioning and conveying roller 42 along a direction perpendicular to the conveying direction of the prestressed end face flange. The preferred structure of the positioning and clamping assembly 43 is as follows: Figures 15 to 17As shown, the positioning and clamping assembly 43 also includes a pair of clamping fixing seats 433, both fixed to the second frame 41 and facing each other, two clamping guide rods 434, both fixed between the pair of clamping fixing seats 433, a pair of jaw mounting seats 435, both movable left and right on the clamping guide rods 434, and a linkage unit connecting the pair of jaw mounting seats 435; the clamping drive source 431 is a cylinder, the piston rod of which is connected to the right jaw mounting seat 435 of the pair of jaw mounting seats 435, and a pair of clamping jaws 432 are respectively fixed on the pair of jaw mounting seats 435. When the piston rod of the cylinder of the clamping drive source 431 extends to the right, it directly drives the right jaw mounting seat 435 to move to the right. At the same time, the right jaw mounting seat 435 drives the left jaw mounting seat 435 to move to the left through the linkage unit, thereby causing the pair of clamping jaws 432 to move in the opposite direction, thereby releasing the prestressed end face flange. Conversely, when the cylinder piston rod of the clamping drive source 431 retracts to the left, it directly drives the right-side clamping jaw mounting seat 435 to move to the left. At the same time, the right-side clamping jaw mounting seat 435 drives the left-side clamping jaw mounting seat 435 to move to the right through the connecting rod unit, thereby causing a pair of clamping jaws 432 to move towards each other, thus clamping the prestressed end face flange.

[0128] Preferably, such as Figure 15 As shown, each clamping fixing seat 433 has a clamping limiting seat 436 fixed on its inner end face facing the jaw mounting seat 435, and a buffer pad 437 is fixed on the inner end of each clamping limiting seat 436. When the clamping drive source 431 drives a pair of clamping jaws 432 to release the prestressed end face flange through a pair of jaw mounting seats 435, the jaw mounting seats 435 move toward the clamping limiting seats 436 and can abut against the clamping limiting seats 436. The clamping limiting seats 436 limit the stroke of the jaw mounting seats 435 and the clamping jaws 432, and the buffer pad 437 buffers the impact force when the jaw mounting seats 435 abut against the clamping limiting seats 436.

[0129] Preferably, such as Figure 17 As shown, the gripper mounting base 435 has a through-slot for left and right clearance, through which the intermediate positioning conveyor roller 42 passes, preventing interference between the movement of the gripper mounting base 435 and the intermediate positioning conveyor roller 42. The gripper mounting base 435 is movably mounted on the clamping guide rod 434 via a linear bearing. The clamping jaws 432 have V-shaped positioning grooves 4321. When a pair of clamping jaws 432 clamp the prestressed end face flange, the V-shaped positioning grooves 4321 abut against the outer circumference of the prestressed end face flange, providing a certain corrective effect. In addition, wear-resistant jaw blocks 4322 are fixed to the groove wall of the V-shaped positioning grooves 4321 by screws. The wear-resistant jaw blocks 4322 are used to contact and cooperate with the outer circumferential surface of the prestressed end face flange, making the clamping jaws 432 durable.

[0130] Furthermore, such as Figure 15 and Figure 18 As shown, the linkage unit includes a guide rod fixing seat 438 fixed in the middle of the clamping guide rod 434, a first connecting rod 439, a second connecting rod 4310, and a third connecting rod 4311. The middle of the first connecting rod 439 is rotatably mounted on the guide rod fixing seat 438 via a connecting rod pivot. The two ends of the second connecting rod 4310 are respectively hinged to one end of the first connecting rod 439 and one of the pair of gripper mounting seats 435. The two ends of the third connecting rod 4311 are respectively hinged to the other end of the first connecting rod 439 and the other of the pair of gripper mounting seats 435. In addition, a dustproof cover can be fixed on top of the guide rod fixing seat 438 to prevent falling concrete debris from accumulating on the positioning clamping assembly 43.

[0131] Furthermore, such as Figures 15 to 17 As shown, a cylinder connecting block 4312 is fixed to the lower end of the right gripper mounting base 435. The cylinder piston rod of the clamping drive source 431 is connected to the cylinder connecting block 4312 through a floating joint, realizing the connection between the clamping drive source 431 and the right gripper mounting base 435. At the same time, the positioning and clamping assembly 43 also includes a cylinder mounting plate 4313 fixed to the second frame 41, a cylinder dust cover 4314 fixed to the cylinder mounting plate 4313 and covering the clamping drive source 431, a second sensor mounting plate 4315 fixed to the cylinder mounting plate 4313, and several second proximity switches 4316 fixed to the second sensor mounting plate 4315. A detection bolt 4317 is fixed on the cylinder connecting block 4312. Several second proximity switches 4316 are spaced apart on the left and right and can sense the detection bolt 4317. Thus, the position information of the cylinder mounting plate 4313 can be fed back through the output of the second proximity switch 4316, thereby obtaining the position information of the clamping jaw 432. The cylinder dust cover 4314 prevents fallen concrete debris from accumulating on the clamping drive source 431.

[0132] Furthermore, such as Figure 10 As shown, the first positioning conveying device 300 and the second positioning conveying device 400 also include a positioning stop assembly 44. The positioning clamping assembly 43 and the positioning stop assembly 44 are distributed sequentially along the conveying direction of the prestressed end face flange, that is, the positioning clamping assembly 43 is distributed on the rear side of the positioning stop assembly 44. The positioning stop assembly 44 includes a positioning stop drive source and a liftable flange stop component. The positioning stop drive source is connected to the flange stop component in a transmission connection. The flange stop component is arranged in a liftable manner in the gap between two adjacent positioning conveying rollers 42.

[0133] The preferred structure of the positioning and stopping component 44 is as follows: Figure 19As shown, the positioning and stopping assembly 44 also includes a positioning and stopping mounting plate 448 fixed to the second frame 41; the flange stopping component includes a first stopping rod 444, a second stopping rod 445, a third stopping rod 446, and a fourth stopping rod 447. The first stopping rod 444, the second stopping rod 445, the third stopping rod 446, and the fourth stopping rod 447 are all vertically and flexibly mounted on the positioning and stopping mounting plate 448 via oil-free bushings. The first stopping rod 444, the second stopping rod 445, the third stopping rod 446, and the fourth stopping rod 447 are positioned along the flange perpendicular to the prestressed end face. The feed direction is distributed left and right at intervals. The lower ends of the second stop lever 445 and the third stop lever 446 are fixedly connected by a positioning stop connecting plate 449. The positioning stop drive source includes a first stop cylinder 441, a second stop cylinder 442 and a third stop cylinder 443, all fixed to the positioning stop mounting plate 448. The piston rod of the first stop cylinder 441 is connected to the first stop lever 444, the piston rod of the second stop cylinder 442 is connected to the positioning stop connecting plate 449, and the piston rod of the third stop cylinder 443 is connected to the fourth stop lever 447. There are various specifications for prestressed end face flanges. When the outer diameter of the prestressed end face flange is small, the second stop cylinder 442 drives the second stop rod 445 and the third stop rod 446 to rise and fall through the positioning stop connecting plate 449 to stop the prestressed end face flange. When the outer diameter of the prestressed end face flange is large, the first stop cylinder 441 drives the first stop rod 444 to rise and fall, and the third stop cylinder 443 drives the fourth stop rod 447 to rise and fall to stop the prestressed end face flange. In this way, it can be used to stop prestressed end face flanges of various sizes.

[0134] Preferably, such as Figure 19 As shown, the positioning and stopping assembly 44 also includes a first cylinder mounting bracket 4415 and a second cylinder mounting bracket 4416, both fixed to the bottom of the positioning and stopping mounting plate 448. The first stopping cylinder 441 is fixed to the first cylinder mounting bracket 4415, and the upper end of the piston rod of the first stopping cylinder 441 is connected to the lower end of the first stopping lever 444 via a floating joint. The third stopping cylinder 443 is fixed to the second cylinder mounting bracket 4416, and the upper end of the piston rod of the third stopping cylinder 443 is connected to the lower end of the fourth stopping lever 447 via a floating joint. The second stopping cylinder 442 is directly fixed to the bottom of the positioning and stopping mounting plate 448, and the lower end of the piston rod of the second stopping cylinder 442 is connected to the positioning and stopping connecting plate 449 via a floating joint.

[0135] Furthermore, such as Figure 19As shown, the positioning stop assembly 44 also includes two vertically arranged third proximity switches 4410, two vertically arranged fourth proximity switches 4411, two vertically arranged fifth proximity switches 4412, a first sensing block 4413 fixed to the first stop lever 444, and a second sensing block 4414 fixed to the fourth stop lever 447. Both third proximity switches 4410 are fixed to the first cylinder mounting bracket 4415 and can sense the first sensing block 4413. When the first stop cylinder 441 drives the first stop lever 444 to rise, the upper third proximity switch 4410 senses the first sensing block 4413; when the first stop cylinder 441 drives the first stop lever 444 to fall, the lower third proximity switch 4410 senses the first sensing block 4413. Thus, the output of the two third proximity switches 4410 can accurately feedback the position information of the first stop lever 444. A second detection bracket plate 4417 is fixed on the positioning stop mounting plate 448. Two fourth proximity switches 4411 are fixed to the second detection bracket plate 4417 and can both sense the positioning stop connecting plate 449. When the second stop cylinder 442 drives the second stop lever 445 and the third stop lever 446 to rise through the positioning stop connecting plate 449, the upper fourth proximity switch 4411 can sense the positioning stop connecting plate 449. When the second stop cylinder 442 drives the second stop lever 445 and the third stop lever 446 to fall through the positioning stop connecting plate 449, the lower fourth proximity switch 4411 can sense the positioning stop connecting plate 449. In this way, the output of the two fourth proximity switches 4411 can accurately feedback the position information of the second stop lever 445 and the third stop lever 446. Both fifth proximity switches 4412 are fixed to the second cylinder mounting bracket 4416 and can sense the second sensing block 4414. When the third gear stop cylinder 443 drives the fourth gear stop lever 447 to rise, the upper fifth proximity switch 4412 can sense the second sensing block 4414. When the third gear stop cylinder 443 drives the fourth gear stop lever 447 to fall, the lower fifth proximity switch 4412 can sense the second sensing block 4414. In this way, the output of the two fifth proximity switches 4412 can accurately feedback the position information of the fourth gear stop lever 447.

[0136] Preferably, such as Figure 19 As shown, the upper ends of the first stop lever 444, the second stop lever 445, the third stop lever 446, and the fourth stop lever 447 are all fixed with second damping rings 4418. The second damping rings 4418 are in contact with the prestressed end face flange to reduce the impact force when they come into contact with the prestressed end face flange. In addition, a second sensor cover 4419 is fixed on the second detection bracket plate 4417, and the two fourth proximity switches 4411 are covered by the second sensor cover 4419 to prevent concrete residue from falling onto the fourth proximity switches 4411.

[0137] Furthermore, such as Figure 10 and Figure 20 As shown, both the first positioning conveying device 300 and the second positioning conveying device 400 include an in-station hole position detection component 45. The in-station hole position detection component 45 includes a detection fixing bracket 451 fixed to the second frame 41, a third sensor mounting plate 452 fixed to the detection fixing bracket 451, and two first photoelectric sensors 453 both fixed to the third sensor mounting plate 452. The third sensor mounting plate 452 is distributed on the side of the area above the positioning conveying roller 42 to avoid interference with the first scraper 74 in the first cleaning device 700. The two first photoelectric sensors 453 are distributed at intervals, and both first photoelectric sensors 453 are inclined and can be aligned with the sealing plate 103 of the head flange 101 or the flange hole 104 of the tail flange 102 conveyed by the positioning conveying roller 42. When the prestressed end face flange at the cleaning station is a head plate flange 101, the emitted light from the first photoelectric sensor 453 is blocked and reflected back, resulting in a strong signal output by the first photoelectric sensor 453. When the prestressed end face flange at the cleaning station is a tail plate flange 102, the emitted light from the first photoelectric sensor 453 is unobstructed and not reflected back, resulting in a weaker signal output by the first photoelectric sensor 453. Thus, the type of prestressed end face flange can be identified based on the output signal of the first photoelectric sensor 453.

[0138] Furthermore, such as Figure 10 As shown, both the first positioning conveying device 300 and the second positioning conveying device 400 include four sets of through-beam detection components 46. These four sets of through-beam detection components 46 are distributed sequentially along the conveying direction of the prestressed end face flange, and the last set of through-beam detection components 46 and the flange stopping component are distributed adjacent to each other sequentially along the conveying direction of the prestressed end face flange. Figure 21 As shown, each through-beam detection assembly 46 includes a fourth sensor mounting plate 461 fixed to the second frame 41, and a through-beam sensor 120 fixed to the fourth sensor mounting plate 461. The transmitter and receiver of the through-beam sensor 120 are distributed facing each other along a direction perpendicular to the conveying direction of the prestressed end flange. The presence and size of the prestressed end flange can be determined by combining the four through-beam detection assemblies 46. Simultaneously, the foremost through-beam detection assembly 46 can determine whether the prestressed end flange has been conveyed forward to the positioning stop assembly 44, which controls whether the clamping drive source 431 controls the closing of a pair of clamping jaws 432.

[0139] Furthermore, such as Figure 10 and Figure 22As shown, both the first positioning conveyor 300 and the second positioning conveyor 400 include a mistake-proofing detection component 47. The mistake-proofing detection component 47 includes a fifth sensor mounting plate 471 fixed to the second frame 41, and a pair of second photoelectric sensors 472 both fixed to the fifth sensor mounting plate 471. The pair of second photoelectric sensors 472 are distributed facing each other along a direction perpendicular to the conveying direction of the prestressed end flange, and both are higher than the prestressed end flange conveyed by the positioning conveyor roller 42. When a foreign object of considerable height is present on the surface of the prestressed end flange, the light from the second photoelectric sensors 472 is blocked, thereby achieving mistake-proofing detection. The mistake-proofing detection component 47 issues an alarm signal, at which point a worker intervenes to remove the abnormal prestressed end flange, preventing damage to equipment in subsequent processes.

[0140] Preferably, such as Figure 12 As shown, the second frame 41 has two extended C-shaped guide rails 418 fixed on its left and right sides. The detection fixing bracket 451 in the in-station hole position detection assembly 45, the fourth sensor mounting plate 461 in the through-beam detection assembly 46, and the fifth sensor mounting plate 471 in the error-proof detection assembly 47 are all fixed to square nuts with screws. The square nuts are fixed in the groove of the second C-shaped guide rail 418 with clearance fit, which facilitates the installation and fixing of the in-station hole position detection assembly 45, the through-beam detection assembly 46, and the error-proof detection assembly 47 on the second frame 41.

[0141] Furthermore, such as Figure 10 and Figure 23 As shown, both the first positioning conveying device 300 and the second positioning conveying device 400 include a brush cleaning assembly 49. The brush cleaning assembly 49 is arranged at the end of the prestressed end flange conveying path, i.e., at the front end, and is located above the positioning conveying roller 42. The brush cleaning assembly 49 includes a pair of brush fixing frames 491, both fixed to the second frame 41, two brush connecting brackets 492, both fixed between the pair of brush fixing frames 491, and two brushes 493 fixed on each brush connecting bracket 492. The pair of brush fixing frames 491 are distributed facing each other horizontally along a direction perpendicular to the conveying direction of the prestressed end flange, and the brush connecting brackets 492 are inclined. The prestressed end flange, cleaned by the first cleaning device 700 or the second cleaning device 800, continues to be conveyed forward and then passes through the brush cleaning assembly 49, where the brushes 493 clean the concrete residue on the surface of the prestressed end flange.

[0142] The working principles of the first positioning conveyor 300 and the second positioning conveyor 400 are as follows: In the initial state, a pair of clamping jaws 432 are in the open state, and the first stop lever 444, the second stop lever 445, the third stop lever 446, and the fourth stop lever 447 are all in the raised state. When the rear-side through-beam detection component 46 detects a prestressed end face flange passing over the positioning conveyor roller 42, it determines the size of the prestressed end face flange. At the same time, the station hole position detection component 45 determines the type of prestressed end face flange, and the error prevention detection component 47 determines whether there is any abnormality. If there is an abnormality, an alarm signal is sent to notify manual intervention. If there is no abnormality, the first stop lever 444 and the fourth stop lever 447 are controlled to descend, or the second stop lever 445 and the third stop lever 446 are controlled to descend, depending on the size of the prestressed end face flange. The positioning conveyor roller 42 conveys the prestressed end face flange to be cleaned forward until it abuts against the second stop bar 445 and the third stop bar 446, or against the first stop bar 444 and the fourth stop bar 447. The clamping drive source 431 drives a pair of clamping jaws 432 to perform a clamping action, correcting and fixing the position of the prestressed end face flange. Subsequently, the second stop bar 445 and the third stop bar 446, or the first stop bar 444 and the fourth stop bar 447, descend; the first cleaning device 700 above the first positioning conveyor device 300 and the second cleaning device 800 above the second positioning conveyor device 400 automatically clean the prestressed end face flange at the cleaning station, removing the concrete adhering to the surface of the prestressed end face flange. After cleaning, the clamping drive source 431 drives a pair of clamping jaws 432 to open, and the positioning conveying roller 42 continues to convey the cleaned prestressed end face flange forward. The brush cleaning assembly 49 cleans the concrete residue on the surface of the prestressed end face flange. Finally, the first stop lever 444, the second stop lever 445, the third stop lever 446, and the fourth stop lever 447 all rise and reset to their initial state, entering the next working cycle. Furthermore, the first positioning conveying device 300 will only continue to convey the prestressed end face flange forward if the flange inlet / outlet 521 of the flipping device 500 faces the first positioning conveying device 300 and there is no prestressed end face flange inside the flipping device 500; otherwise, it will not convey it forward.

[0143] Tilting device 500

[0144] like Figure 24 and Figure 25As shown, the third frame 51 of the tilting device 500 is a frame structure welded from multiple columns and beams. Each column of the third frame 51 has a foot support assembly 48 installed at its lower end. The structure of the foot support assembly 48 in the tilting device 500 is the same as that in the first positioning conveyor 300 and the second positioning conveyor 400, and will not be repeated here. Tilting support shafts extending horizontally are fixed to both sides of the tilting frame 52. These shafts are rotatably supported in the third frame 51 via bearings. The tilting drive source 53 is a worm gear reducer motor assembly, fixed to the right side of the third frame 51. The worm gear reducer motor assembly is connected to the tilting support shaft on the right side of the tilting frame 52, driving the shaft to rotate, thereby achieving a 180° tilt of the tilting frame 52.

[0145] Preferably, among the input rollers 54, one input roller 54 is an electric roller, the input rollers 54 are connected by a sprocket and chain mechanism, one input roller 54 is connected to one output roller 55 among the output rollers 55 by a sprocket and chain mechanism, and the output rollers 55 are connected by a sprocket and chain mechanism.

[0146] Furthermore, such as Figure 24 As shown, the tilting device 500 also includes a second slag collection box 56 fixed to the third frame 51. The second slag collection box 56 has slag collection troughs distributed below the tilting frame 52. The second slag collection box 56 has a slag discharge port, and the second slag collection box 56 has an openable and closable second material outlet baffle 57 at the slag discharge port. When the tilting device 500 tilts the prestressed end face flange, concrete residue falling from the prestressed end face flange will fall into the slag collection trough through the gap between the input rollers 54 or the gap between the output rollers 55, preventing concrete residue leakage. When the slag collection trough needs to discharge slag, the second material outlet baffle 57 can be opened. The installation structure between the second material outlet baffle 57 and the second slag collection box 56 is the same as the installation structure between the first material outlet baffle 415 and the first slag collection box 414 in the first positioning conveying device 300 and the second positioning conveying device 400, and will not be described again here.

[0147] During the cleaning process, if there is a prestressed end face flange on the second positioning conveyor 400, the flipping device 500 will not convey the prestressed end face flange to the second positioning conveyor 400; subsequently, when there is no prestressed end face flange on the second positioning conveyor 400, the flipping device 500 will convey the prestressed end face flange to the second positioning conveyor 400. After the flipping device 500 has conveyed the prestressed end face flange to the second positioning conveyor 400, the flipping device 500 returns to its initial position facing the first positioning conveyor 300.

[0148] Offline conveyor device 600

[0149] like Figure 26 As shown, the off-line conveying device 600 also includes a head and tail plate detection assembly 64, an off-line stopping assembly 65, and a first unloading station 66 and a second unloading station 67, both located on the conveying path of the prestressed end face flange. The first unloading station 66 and the second unloading station 67 are distributed sequentially along the conveying direction of the prestressed end face flange; that is, the first unloading station 66 is located behind the second unloading station 67, and the prestressed end face flange being conveyed forward is first conveyed to the first unloading station 66. The head and tail plate detection assembly 64 includes a detection sensor 641 aligned with the first unloading station 66, used to detect whether the prestressed end face flange at the first unloading station 66 is a head plate flange 101 or a tail plate flange 102. Figure 26 and Figure 30 As shown, the offline stop assembly 65 includes an offline stop drive source 651 installed on the fourth frame 61 and a liftable flange stop component 652. The offline stop drive source 651 is connected to the flange stop component 652 in a transmission connection. The flange stop component 652 is movably arranged in the gap between two adjacent offline conveyor rollers 62 and is arranged between the first unloading station 66 and the second unloading station 67.

[0150] After being cleaned by the second cleaning device 800, the prestressed end face flange is conveyed to the inlet end of the downstream conveyor 600. The downstream conveyor drive source 63 is activated, driving several downstream conveyor rollers 62 to rotate, which then convey the prestressed end face flange forward. The prestressed end face flange is first conveyed forward to the first unloading station 66, where the head and tail plate detection components 64 detect the type of the prestressed end face flange and determine whether it is a head plate flange 101 or a tail plate flange 102. When the prestressed end face flange at the first unloading station 66 is determined to be the head plate flange 101, the lower line stop drive source 651 drives the flange stop component 652 to be in an upward state, stopping the head plate flange 101 at the first unloading station 66; when the prestressed end face flange at the first unloading station 66 is determined to be the tail plate flange 102, the lower line stop drive source 651 drives the flange stop component 652 to be in a downward state, and the tail plate flange 102 continues to be conveyed forward until it is conveyed forward to the second unloading station 67. Alternatively, when it is determined that the prestressed end face flange at the first unloading station 66 is the tail plate flange 102, the lower line stop drive source 651 drives the flange stop component 652 to be in an upward state, stopping the tail plate flange 102 at the first unloading station 66; when it is determined that the prestressed end face flange at the first unloading station 66 is the head plate flange 101, the lower line stop drive source 651 drives the flange stop component 652 to be in a downward state, and the head plate flange 101 continues to be conveyed forward until it is conveyed forward to the second unloading station 67. In this way, the off-line conveyor 600, through the cooperation of the head and tail plate detection components 64 and the off-line stop component 65, effectively distinguishes the head plate flange 101 and the tail plate flange 102, and conveys the head plate flange 101 and the tail plate flange 102 to two unloading stations respectively, realizing the automatic differentiation and classification of the head plate flange 101 and the tail plate flange 102, which facilitates the subsequent transfer operation of the head plate flange 101 and the tail plate flange 102.

[0151] Furthermore, such as Figure 27 and Figure 28 As shown, the offline conveyor drive source 63 is a motor, preferably a variable frequency geared motor. This motor is fixedly mounted on the fourth frame 61 via a motor mounting bracket and is distributed below the offline conveyor rollers 62. The offline conveyor drive source 63 is connected to several offline conveyor rollers 62 via a sprocket and chain mechanism. Meanwhile, as... Figure 27 and Figure 29 As shown, the fourth frame 61 is a frame structure welded from multiple columns and beams. Each column has a foot cup 111 and a base mount 112 installed at its lower end. The foot cup 111 is used to adjust the height of its corresponding column, thus adjusting the overall height and balance of the fourth frame 61. The base mount 112 is used to fix the fourth frame 61 to the ground, improving the stability of the unloading conveyor 600. Additionally, as... Figure 26 and Figure 28As shown, a roller guard is fixed to the upper end of the fourth frame 61 to cover the sprocket and chain mechanism and prevent the sprocket and chain mechanism from being contaminated by concrete residue.

[0152] Furthermore, such as Figure 26 and Figure 28 As shown, the offline conveying device 600 also includes multiple guide units spaced back and forth along the conveying direction of the prestressed end face flange, such as... Figure 26 and Figure 28 In the illustrated embodiment, there are two sets of guiding units. Each guiding unit includes two sets of guiding components symmetrically arranged left and right along a direction perpendicular to the conveying direction of the prestressed end face flange. Each set of guiding components includes a third guiding mounting plate 601 fixed to the fourth frame 61 and a third guiding rod 602 fixed inside the third guiding mounting plate 601. The third guiding rod 602 extends straight back and forth along the conveying direction of the prestressed end face flange and is distributed above the lower conveying roller 62. Through the third guiding rod 602, the prestressed end face flange can be guided to the center position of the lower conveying device 600, preventing the prestressed end face flange from excessively deviating.

[0153] Furthermore, the preferred structure of the offline stop assembly 65 is as follows: Figure 30 and Figure 31 As shown, the lower line stop assembly 65 also includes a lower line stop mounting plate 653 fixed to the fourth frame 61, and a pair of lower line stop brackets 654 fixed to the lower line stop mounting plate 653. The pair of lower line stop brackets 654 are opposite each other in a direction perpendicular to the conveying direction of the prestressed end face flange. The left and right ends of the flange stop 652 are respectively movably supported in the pair of lower line stop brackets 654. The lower line stop drive source 651 is a cylinder installed at the bottom of the lower line stop mounting plate 653. The upper end of the piston rod of the cylinder is connected to the flange stop 652 through a floating joint. Thus, when the piston rod of the cylinder of the lower line stop drive source 651 extends upward, it directly drives the flange stop 652 to move upward, so that it is in an upward state higher than the lower line conveying roller 62; when the piston rod of the cylinder of the lower line stop drive source 651 retracts downward, it directly drives the flange stop 652 to move downward, so that it is in a downward state lower than the lower line conveying roller 62.

[0154] Preferably, such as Figure 30As shown, the lower stop assembly 65 also includes a third detection bracket plate 655 fixed to the lower stop mounting plate 653, two sixth proximity switches 656 arranged vertically and both fixed to the third detection bracket plate 655, and a detection sensor 657 fixed to the flange stop component 652. Both sixth proximity switches 656 can sense the detection sensor 657, which is a hexagonal bolt. When the lower stop drive source 651 drives the flange stop component 652 to move downward, the detection sensor 657 moves downward along with the flange stop component 652. If the lower sixth proximity switch 656 can sense the detection sensor 657, then the lower sixth proximity switch 656 is triggered. When the lower stop drive source 651 drives the flange stop component 652 to move upward, the detection sensor 657 moves upward along with the flange stop component 652. If the upper sixth proximity switch 656 can sense the detection sensor 657, then the upper sixth proximity switch 656 is triggered. Therefore, based on the signals from the upper and lower sixth proximity switches 656, the position information of the flange stop 652 is accurately fed back, thereby accurately determining whether the flange stop 652 is in a descending or ascending state, thus improving control accuracy.

[0155] Preferably, such as Figure 30 and Figure 31 As shown, the flange stop 652 includes a horizontally arranged stop base plate 6521, a vertically arranged stop main plate 6522 fixed to the rear end of the stop base plate 6521 facing the first unloading station 66, a stop end plate 6523 fixed between the left and right ends of the stop base plate 6521 and the stop main plate 6522, and a stop pin 6524 fixed in the stop end plate 6523. The stop base plate 6521 and the stop main plate 6522 both extend horizontally in a direction perpendicular to the conveying direction of the prestressed end face flange. The lower line stop bracket 654 is provided with a vertically extending groove on the inner side of the flange stop 652. The stop pin 6524 extends horizontally and is supported vertically in the groove by bearings, thereby realizing that the flange stop 652 can be vertically supported in a pair of lower line stop brackets 654. In addition, several reinforcing ribs 6525 spaced apart on the left and right are fixed between the stop base plate 6521 and the stop main plate 6522 to improve the structural strength of the flange stop component 652.

[0156] Furthermore, the preferred structure of the head and tail plate detection assembly 64 is as follows: Figure 32As shown, the head and tail plate detection assembly 64 also includes a sensor connecting bracket 642 and a sixth sensor mounting plate 643. The sensor connecting bracket 642 is fixed to the fourth frame 61 and has a support beam 644 located directly above the first unloading station 66. The support beam 644 extends horizontally. The sixth sensor mounting plate 643 is fixed to the support beam 644. The detection sensor 641 is a photoelectric sensor and is fixed to the sixth sensor mounting plate 643. When the prestressed end face flange on the first unloading station 66 is the head plate flange 101, the emitted light from the photoelectric sensor is reflected back, and the photoelectric sensor outputs a strong signal. When the prestressed end face flange on the first unloading station 66 is the tail plate flange 102, since the center of the tail plate flange 102 is the flange hole 104, the emitted light from the photoelectric sensor is not reflected back, and the photoelectric sensor outputs a weak signal. Thus, the type of prestressed end face flange on the first unloading station 66 can be identified and distinguished based on the output signal of the photoelectric sensor.

[0157] Preferably, such as Figure 32 As shown, there are multiple detection sensors 641, arranged side-by-side along a direction perpendicular to the conveying direction of the prestressed end flange. Each sensor 641 is fixed to the support beam 644 via a sixth sensor mounting plate 643. By arranging multiple detection sensors 641, the head and tail plate detection assembly 64 can detect prestressed end flanges of various sizes, ensuring the accuracy of distinguishing between the head flange 101 and the tail flange 102. Additionally, a third C-shaped guide rail 645 extending laterally is fixed to the upper end of the support beam 644. A square nut is fixed in a clearance fit within the groove of the third C-shaped guide rail 645. The sixth sensor mounting plate 643 is fixed to the third C-shaped guide rail 645 by fastening bolts, the lower ends of which are tightened into the square nuts, facilitating the fixed installation of the sixth sensor mounting plate 643 on the support beam 644.

[0158] Furthermore, such as Figure 26 As shown, the offline conveying device 600 also includes a positioning detection component 69, which and the flange stop component 652 are distributed sequentially and closely together along the conveying direction of the prestressed end face flange. Figure 33As shown, the arrival detection component 69 includes a seventh sensor mounting plate 691 fixed to the fourth frame 61 and a through-beam sensor 120 fixed to the seventh sensor mounting plate 691. The transmitter and receiver of the through-beam sensor 120 are arranged facing each other on the left and right sides along a direction perpendicular to the conveying direction of the prestressed end flange. The transmitter and receiver of the through-beam sensor 120 are respectively fixed to the left and right sides of the fourth frame 61 by a seventh sensor mounting plate 691. When there is no prestressed end flange between the transmitter and receiver, the receiver can receive the light emitted by the transmitter; when there is a prestressed end flange between the transmitter and receiver, the light emitted by the transmitter is blocked by the prestressed end flange, and the receiver cannot receive the light emitted by the transmitter. Therefore, based on the output of the receiver, it can be determined whether there is a prestressed end flange at that location, that is, whether a prestressed end flange has been conveyed to the rear side of the flange stop 652, i.e., whether it has been conveyed to the first unloading station 66.

[0159] Furthermore, such as Figure 26 As shown, along the conveying direction of the prestressed end face flange, the fourth frame 61 has a discharge blocking bracket 611 and a laser detector 612 fixed at the end of the conveying path of the prestressed end face flange. The discharge blocking bracket 611 is higher than the lower conveyor roller 62, and the laser detector 612 and the discharge blocking bracket 611 are distributed closely together along the conveying direction of the prestressed end face flange. The discharge blocking bracket 611 stops the prestressed end face flange at the second discharge station 67 to prevent it from falling off the lower conveyor device 600. At the same time, the output signal of the laser detector 612 accurately determines whether there is a prestressed end face flange at the second discharge station 67.

[0160] Preferably, such as Figure 27 As shown, the fourth frame 61 has four C-shaped guide rails 603 extending forward and backward fixed on its left and right sides. These guide rails 603 are positioned at the head and tail plate detection assembly 64 and the position detection assembly 69. A square nut is fixed to the groove of the fourth C-shaped guide rail 603 with a clearance fit. At the head and tail plate detection assembly 64, the lower end of the sensor connecting bracket 642 is fixed to the fourth C-shaped guide rail 603 by fastening bolts, the lower ends of which are tightened into the square nuts. At the position detection assembly 69, the seventh sensor mounting plate 691 is fixed to the fourth C-shaped guide rail 603 by fastening bolts, the lower ends of which are tightened into the square nuts. This facilitates the fixed installation of the head and tail plate detection assembly 64 and the position detection assembly 69 on the fourth frame 61.

[0161] Furthermore, such as Figure 26 As shown, the offline conveying device 600 also includes a roller brush coating assembly 68 located at the rear inlet end of the offline conveying device 600. For example... Figures 34 to 36As shown, the roller brush application assembly 68 includes an application mounting frame 681 fixed to the fourth frame 61, a holding trough 682 fixed to the application mounting frame 681, and an upper application roller 683 and a lower application roller 684, both rotatably mounted on the application mounting frame 681 and arranged side by side. The upper application roller 683 and the lower application roller 684 are in contact with each other. At least a portion of the lower application roller 684 is accommodated in the holding trough 682. The upper application roller 683 and the first of several lower conveying rollers 62 are arranged sequentially and closely together along the conveying direction of the prestressed end flange. The holding trough 682 contains a release agent. The release agent covers the outer circumferential surface of the upper application roller 683 through the rotation and contact of the lower application roller 684 and the upper application roller 683. When the prestressed end flange is conveyed forward, the upper application roller 683 contacts and engages with the prestressed end flange, thereby automatically and evenly applying the release agent to the surface of the prestressed end flange.

[0162] Furthermore, such as Figures 34 to 36 As shown, the roller brush applicator 68 also includes a connecting shaft 685 rotatably supported within the roller brush applicator 68. Both the upper applicator roller 683 and the lower applicator roller 684 include a roller shaft 6814, a roller body 686 fixed to the roller shaft 6814, and a roller cloth 687 fixed to the outer periphery of the roller body 686. The connecting shaft 685 is connected to the first downstream conveyor roller 62 via a first transmission assembly, and to the roller shaft 6814 of the upper applicator roller 683 via a universal joint 6813. The roller shafts 6814 of the upper applicator roller 683 and the lower applicator roller 684 are connected via a second transmission assembly. Preferably, both the first and second transmission assemblies are sprocket and chain mechanisms, in which case a transmission sprocket 688 is fixed to the connecting shaft 685 and the roller shafts 6814 of the upper applicator roller 683 and the lower applicator roller 684. In this application, the rotational power of the first transmission component and the second transmission component comes from the offline conveyor drive source 63, thereby reducing equipment costs.

[0163] Preferably, such as Figure 34 and Figure 36As shown, the roller brush applicator 68 also includes a roller support frame 689 fixed on the applicator mounting frame 681. The roller support frame 689 is a concave bending mechanism. The left and right ends of the roller shafts 6814 of the upper applicator roller 683 and the lower applicator roller 684 are rotatably supported in the roller support frame 689 by bearings with seats. The upper applicator roller 683 is fixed by installing washers and retaining rings at its left and right ends, respectively, and the lower applicator roller 684 is fixed by installing washers at its left and right ends. The roller brush applicator 68 also includes a scraper blade 6810 extending to the left and right. The left and right ends of the scraper blade 6810 are fixed to the roller support frame 689, respectively. The scraper blade 6810 is arranged on the outer periphery of the upper applicator roller 683 and contacts the roller cloth 687 on the outer periphery of the upper applicator roller 683. The scraper blade 6810 is used to scrape off excess oil on the upper applicator roller 683 to avoid excessive oil. The roller brush application assembly 68 has a sprocket guard 6811 fixed to the roller support frame 689 and a trough cover 6812 covering the holding trough 682; the sprocket guard 6811 covers the drive sprocket 688 to prevent the drive sprocket 688 from being contaminated; the trough cover 6812 prevents debris from falling into the holding trough 682 and prevents the release agent from being contaminated.

[0164] The operation of the offline conveyor 600 is as follows: In the initial state, the flange stop 652 is in the rising state; the cleaned prestressed end face flange is conveyed to the inlet end of the rear end of the offline conveyor 600, and the offline conveyor drive source 63 is activated, driving several offline conveyor rollers 62 to convey the prestressed end face flange forward. When the arrival detection component 69 detects the prestressed end face flange, and the head and tail plate detection component 64 determines that the prestressed end face flange is the head plate flange 101, the head plate flange 101 is stopped at the first unloading station 66, and the head plate flange 101 at the first unloading station 66 is removed by a robot or hoist crane or other supporting equipment, or manually. When the arrival detection component 69 detects a prestressed end face flange and the head and tail plate detection component 64 determines that the prestressed end face flange is the tail plate flange 102, the lowering stop drive source 651 drives the flange stop component 652 to descend, and the tail plate flange 102 continues to be conveyed forward until the tail plate flange 102 contacts the unloading blocking bracket 611. The tail plate flange 102 is stopped at the second unloading station 67, and the tail plate flange 102 at the second unloading station 67 is removed by a robot, hoist, or other supporting equipment, or manually. When the laser detector 612 detects a prestressed end face flange, the flange stop component 652 is kept in an upward state. When the arrival detection component 69 detects a prestressed end face flange, the new prestressed end face flange is prevented from entering the lowering conveyor device 600.

[0165] First cleaning device 700

[0166] like Figure 3 and Figure 37As shown, the fifth frame 71 of the first cleaning device 700 is fixed on the top surface of the second frame 41 of the first positioning and conveying device 300. Specifically, the fifth frame 71 has four first fixed columns 701 extending vertically. The lower end of each first fixed column 701 is fixed to the second frame 41 of the first positioning and conveying device 300 by several bolts, thereby fixing the fifth frame 71 as a whole to the second frame 41 of the first positioning and conveying device 300.

[0167] Furthermore, such as Figure 37 As shown, the first cleaning device 700 further includes a first cleaning lifting drive source 75, a first lifting frame 76 movably mounted on the first fixed column 701 via bearings, a first cleaning rotation drive source 77 mounted on the first lifting frame 76, and a first rotating shaft rotatably mounted in the first lifting frame 76 via bearings. The first cleaning lifting drive source 75 is a cylinder, the lower end of which is connected to the first lifting frame 76. The first cleaning rotation drive source 77 is a motor and is connected to the upper end of the first rotating shaft. The first cutter head base plate 72 is fixed to the bottom of the first rotating shaft. Figure 38 As shown, each first cutter holder 73 is also fixed with a first wire brush 78, and the first scraper 74 and the first wire brush 78 are distributed at intervals along the rotation direction of the first cutter disc base plate 72.

[0168] The working process of the first cleaning device 700 is as follows: In the initial state, the piston rod of the cylinder of the first cleaning lifting drive source 75 is in the upward retracted state, and the first scraper 74 and the first wire brush 78 are located directly above the cleaning station of the first positioning conveying device 300. When the positioning clamping assembly 43 in the first positioning conveying device 300 clamps the prestressed end face flange, the piston rod of the cylinder of the first cleaning lifting drive source 75 extends downward, driving the first lifting frame 76 to descend. Then, the first lifting frame 76 drives the first cleaning rotary drive source 77, the first cutter head base plate 72, the first cutter holder 73, the first scraper 74 and the first wire brush 78 to descend together, so that the lower ends of the first scraper 74 and the first wire brush 78 contact the inner surface of the prestressed end face flange. After that, the first cleaning rotary drive source 77 is activated, driving the first rotating shaft to rotate. Then, the first rotating shaft drives the first cutter head base plate 72, the first cutter holder 73, the first scraper 74 and the first wire brush 78 to rotate together, thereby automatically cleaning the inner surface of the prestressed end face flange. After cleaning is completed, the first cleaning rotation drive source 77 stops operating, and the first cleaning lifting drive source 75 resets.

[0169] Second cleaning device 800

[0170] like Figure 3 and Figure 39As shown, the sixth frame 81 of the second cleaning device 800 is fixed on the top surface of the second frame 41 of the second positioning and conveying device 400. Specifically, the sixth frame 81 has four vertically extending second fixed columns 801. The lower end of each second fixed column 801 is fixed to the second frame 41 of the second positioning and conveying device 400 by several bolts, thereby fixing the sixth frame 81 as a whole to the second frame 41 of the second positioning and conveying device 400.

[0171] Furthermore, such as Figure 39 As shown, the second cleaning device 800 also includes a second cleaning lifting drive source 88, a second lifting frame 89 movably mounted on the second fixed column 801 via bearings, a second cleaning rotation drive source 810 mounted on the second lifting frame 89, and a second rotating shaft rotatably mounted in the second lifting frame 89 via bearings. The second cleaning lifting drive source 88 is a cylinder, the lower end of which is connected to the second lifting frame 89. The second cleaning rotation drive source 810 is a motor and is connected to the second rotating shaft via transmission. The second cutter head base plate 82 is fixed to the bottom of the second rotating shaft. Figure 40 As shown, each second cutter holder 83 is also fixed with a second wire brush 811, and the second scraper 84 and the second wire brush 811 are distributed at intervals along the rotation direction of the second cutter disc base plate 82.

[0172] Furthermore, the second cleaning device 800 also includes a lifting assembly connected between the second cutter head base plate 82 and the inner hole cleaning base 85, the inner hole cleaning base 85 being vertically movable at the bottom of the second cutter head via the lifting assembly. The preferred structure of the lifting assembly is as follows: Figure 41 and Figure 42 As shown, the lifting assembly includes a lifting mounting base 812 fixed to the bottom of the second cutter head base plate 82, a pair of side lifting plates 814 that are movably mounted on the lifting mounting base 812 via linear guide rail assemblies 813, a lifting connecting plate 815 fixed between the pair of side lifting plates 814, and a first compression spring 816 with its upper end mounted on the lifting connecting plate 815. The inner hole cleaning base 85 is fixed between the pair of side lifting plates 814, and the lower end of the first compression spring 816 abuts against the inner hole cleaning base 85.

[0173] Furthermore, such as Figure 41As shown, the second cleaning device 800 also includes a cleaning guide shaft 817 fixed to the inner hole cleaning base 85 and extending horizontally, a cutter head mounting plate 818 movably mounted on the cleaning guide shaft 817 via bearings, and a second compression spring 819 with its inner end fixed to the cutter head mounting plate 818. A fan-shaped hole 820 is provided in the cutter head mounting plate 818. A third cutter holder 86 is hinged to the cutter head mounting plate 818 via a shaft screw 821 and has a swing shaft 822 fixed parallel to the shaft screw 821. The swing shaft 822 is movably accommodated in the fan-shaped hole 820. The outer end of the second compression spring 819 abuts against the third cutter holder 86. Thus, the third cutter holder 86 can extend and retract axially along the cleaning guide shaft 817, suitable for cleaning the flange holes 104 of tail flanges 102 of different specifications; furthermore, the third cutter holder 86 can swing within a certain angle range to adapt to the taper of the flange hole 104.

[0174] The working process of the second cleaning device 800 is as follows: In the initial state, the piston rod of the cylinder of the second cleaning lifting drive source 88 is in the upward retracted state, and the second scraper 84, the second wire brush 811, and the third scraper 87 are distributed directly above the cleaning station of the second positioning conveying device 400. When the positioning clamping assembly 43 in the second positioning conveying device 400 clamps the prestressed end face flange, the piston rod of the cylinder of the second cleaning lifting drive source 88 extends downward, driving the second lifting frame 89 to descend. Then, the second lifting frame 89 drives the second cleaning rotary drive source 810, the second cutter head base plate 82, the second cutter holder 83, the second scraper 84, the first wire brush 78, the third cutter holder 86, and the third scraper 87 to descend together, so that the lower ends of the second scraper 84 and the second wire brush 811 come into contact with the outer surface of the prestressed end face flange. When the prestressed end face flange is the head plate flange 101, under the combined action of the sealing plate 103 and the first compression spring 816 of the head plate flange 101, the inner hole cleaning base 85 and the side lifting plate 814 move upward along the linear guide assembly 813, and the third scraper 87 abuts against the sealing plate 103; then when the second cleaning rotation drive source 810 is activated, it drives the second cutter disc base plate 82, the second cutter holder 83, the second scraper 84, the first wire brush 78, the third cutter holder 86 and the third scraper 87 to rotate together through the second rotating shaft, automatically cleaning the outer surface of the head plate flange 101 and the sealing plate 103. When the prestressed end face flange is the tail plate flange 102, under the combined action of the first compression spring 816, the third scraper 87 extends into the flange hole 104 of the tail plate flange 102. Under the action of the second compression spring 819, the third scraper 87 abuts against the hole wall of the flange hole 104. When the second cleaning rotary drive source 810 is activated, it drives the second cutter head base plate 82, the second cutter holder 83, the second scraper 84, the first wire brush 78, the third cutter holder 86, and the third scraper 87 to rotate together via the second rotating shaft, automatically cleaning the outer surface of the tail plate flange 102 and the hole wall of the flange hole 104. After cleaning is completed, the second cleaning rotary drive source 810 stops operating, and the second cleaning lifting drive source 88 resets.

[0175] In summary, this application can automatically convey, clean, and classify prestressed end face flanges. It can be configured with automatic feeding and unloading stacking mechanisms, and can also directly connect to the transportation and application equipment for prestressed end face flanges. This achieves automatic cleaning, classification, and stacking of prestressed end face flanges, effectively reducing the need for manual labor on the production line, lowering labor intensity, improving the cleaning efficiency and quality of prestressed end face flanges for precast piles, and extending the service life of prestressed end face flanges for precast piles. Therefore, this invention effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0176] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. An automated cleaning production line for prestressed pile end face flanges, used for cleaning prestressed end face flanges, characterized in that: The automatic cleaning production line includes an upper conveyor (200), a first positioning conveyor (300), a flipping device (500), a second positioning conveyor (400), and an lower conveyor (600) distributed sequentially along the conveying direction of the prestressed end flange, a first cleaning device (700) distributed above the first positioning conveyor (300), and a second cleaning device (800) distributed above the second positioning conveyor (400). The online conveying device (200) includes a first frame (21) that is fixedly installed, and several online conveying rollers (22) that are rotatably installed on the first frame (21). The first positioning conveying device (300) and the second positioning conveying device (400) both include a fixedly mounted second frame (41), several positioning conveying rollers (42) rotatably mounted on the second frame (41), and a positioning clamping assembly (43) mounted on the second frame (41). The positioning clamping assembly (43) includes a clamping drive source (431) and a pair of openable clamping jaws (432). The clamping drive source (431) is connected to the pair of clamping jaws (432) in a transmission connection. The flipping device (500) includes a fixed third frame (51), a flipping frame (52) rotatably mounted on the third frame (51), a flipping drive source (53) mounted on the third frame (51), and several input rollers (54) and output rollers (55) rotatably mounted on the flipping frame (52) and distributed vertically. The flipping drive source (53) is connected to the flipping frame (52) in a transmission connection. The flipping frame (52) has a flange inlet / outlet (521). When the flange inlet / outlet (521) faces the first positioning conveying device (300), the input rollers (54) are positioned downwards. When the flange inlet / outlet (521) faces the second positioning conveying device (400), the output rollers (55) are positioned downwards. The offline conveying device (600) includes a fixedly installed fourth frame (61) and several offline conveying rollers (62) that are rotatably mounted on the fourth frame (61). The first cleaning device (700) includes a fixed fifth frame (71), a first cutter head base plate (72) that can be moved up and down and rotatably mounted on the fifth frame (71), several first cutter holders (73) that are mounted on the bottom of the first cutter head base plate (72), and a first scraper (74) mounted on the bottom of each first cutter holder (73). The second cleaning device (800) includes a fixedly mounted sixth frame (81), a second cutter head base plate (82) that can be moved up and down and rotatably mounted on the sixth frame (81), several second cutter seats (83) that are mounted on the bottom of the second cutter head base plate (82), second scrapers (84) mounted on the bottom of each second cutter seat (83), an inner hole cleaning base (85) that can be moved up and down and mounted on the bottom of the second cutter head base plate (82), a third cutter seat (86) mounted on the inner hole cleaning base (85), and a third scraper (87) mounted on the outer side of the third cutter seat (86), wherein the third scraper (87) is distributed in the middle position of the second cutter head base plate (82); The second cleaning device (800) further includes a cleaning guide shaft (817) fixed to the inner hole cleaning base (85), a cutter head mounting plate (818) movably mounted on the cleaning guide shaft (817), and a second compression spring (819) with its inner end fixed to the cutter head mounting plate (818). The cutter head mounting plate (818) has a fan-shaped hole (820). The third cutter holder (86) is hinged to the cutter head mounting plate (818) by a shaft screw (821) and has a swing shaft (822) parallel to the shaft screw (821) fixed thereon. The swing shaft (822) is movably accommodated in the fan-shaped hole (820). The outer end of the second compression spring (819) abuts against the third cutter holder (86).

2. The automatic cleaning production line according to claim 1, characterized in that: The online conveying device (200) further includes an online conveying drive source (23) fixed to the first frame (21), the online conveying drive source (23) being connected to several online conveying rollers (22), and one of the online conveying rollers (22) in the online conveying device (200) being connected to one of the positioning conveying rollers (42) in the first positioning conveying device (300); The offline conveying device (600) also includes an offline conveying drive source (63) fixed to the fourth frame (61), the offline conveying drive source (63) being drivenly connected to several offline conveying rollers (62), and one of the offline conveying rollers (62) in the offline conveying device (600) being drivenly connected to one of the positioning conveying rollers (42) in the second positioning conveying device (400).

3. The automatic cleaning production line according to claim 1, characterized in that: The online conveying device (200) further includes at least one set of conveying control mechanisms arranged on the conveying path of the prestressed end face flange. Each set of conveying control mechanisms includes a flange detection assembly (24) and an online stop assembly (25) arranged sequentially and adjacently along the conveying direction of the prestressed end face flange. The online stop assembly (25) includes an online stop drive source (251) installed on the first frame (21) and a liftable flange stop rod (252). The online stop drive source (251) is connected to the flange stop rod (252) in a transmission connection. The flange stop rod (252) is arranged in a liftable manner in the gap between two adjacent online conveying rollers (22).

4. The automatic cleaning production line according to claim 1, characterized in that: The positioning and clamping assembly (43) further includes a pair of clamping fixing seats (433) fixed to the second frame (41), a clamping guide rod (434) fixed between the pair of clamping fixing seats (433), a pair of jaw mounting seats (435) movably mounted on the clamping guide rod (434), and a linkage unit connected between the pair of jaw mounting seats (435). The clamping drive source (431) is a cylinder, and the piston rod of the cylinder is connected to one of the jaw mounting seats (435) of the pair of jaw mounting seats (435). The pair of clamping jaws (432) are respectively fixed on the pair of jaw mounting seats (435), and the pair of clamping jaws (432) are symmetrically distributed along the direction perpendicular to the conveying direction of the prestressed end face flange.

5. The automatic cleaning production line according to claim 1, characterized in that: The first positioning conveying device (300) and the second positioning conveying device (400) both include a positioning stop assembly (44). The positioning clamping assembly (43) and the positioning stop assembly (44) are distributed sequentially along the conveying direction of the prestressed end face flange. The positioning stop assembly (44) includes a positioning stop drive source and a liftable flange stop component. The positioning stop drive source is connected to the flange stop component in a transmission connection. The flange stop component is arranged in a liftable manner in the gap between two adjacent positioning conveying rollers (42).

6. The automatic cleaning production line according to claim 1, characterized in that: The prestressed end face flange includes a head plate flange (101) with a sealing plate (103) fixed in the middle, and a tail plate flange (102) with a flange hole (104) in the middle. The unloading conveying device (600) also includes a head and tail plate detection assembly (64), an unloading stop assembly (65), and a first unloading station (66) and a second unloading station (67) both located on the conveying path of the prestressed end face flange. The first unloading station (66) and the second unloading station (67) are distributed sequentially along the conveying direction of the prestressed end face flange. The head and tail plate detection assembly ( 64) Includes a detection sensor (641) for aligning the sealing plate (103) or flange hole (104), the unloading stop assembly (65) includes an unloading stop drive source (651) mounted on the fourth frame (61) and a liftable flange stop (652), the unloading stop drive source (651) being drivenly connected to the flange stop (652), the flange stop (652) being liftably arranged in the gap between two adjacent unloading conveyor rollers (62) and between the first unloading station (66) and the second unloading station (67).

7. The automatic cleaning production line according to claim 1, characterized in that: The offline conveying device (600) further includes a roller brush application assembly (68) located at the inlet end of the offline conveying device (600). The roller brush application assembly (68) includes an application mounting frame (681) fixed to the fourth frame (61), a holding trough (682) fixed to the application mounting frame (681), and an upper application roller (683) and a lower application roller (684) rotatably mounted on the application mounting frame (681) and arranged side by side. The upper application roller (683) and the lower application roller (684) are in contact with each other. At least a portion of the lower application roller (684) is accommodated in the holding trough (682). The upper application roller (683) and the first offline conveying roller (62) among several offline conveying rollers (62) are distributed one after another along the conveying direction of the prestressed end face flange.

8. The automatic cleaning production line according to claim 1, characterized in that: The fifth frame (71) includes several first fixed columns (701) whose lower ends are fixed on the second frame (41) of the first positioning conveying device (300). The first cleaning device (700) also includes a first cleaning lifting drive source (75), a first lifting frame (76) that can be moved up and down on the first fixed column (701), a first cleaning rotation drive source (77) installed on the first lifting frame (76), and a first rotating shaft that can be rotatably installed in the first lifting frame (76). The first cleaning lifting drive source (75) is connected to the first lifting frame (76) in a transmission connection. The first cleaning rotation drive source (77) is connected to the first rotating shaft in a transmission connection. The first cutter head base plate (72) is fixed to the bottom of the first rotating shaft. The sixth frame (81) includes several second fixed columns (801) whose lower ends are fixed on the second frame (41) of the second positioning conveying device (400). The second cleaning device (800) also includes a second cleaning lifting drive source (88), a second lifting frame (89) that can be moved up and down on the second fixed column (801), a second cleaning rotation drive source (810) installed on the second lifting frame (89), and a second rotating shaft that can be rotatably installed in the second lifting frame (89). The second cleaning lifting drive source (88) is connected to the second lifting frame (89) in a transmission connection. The second cleaning rotation drive source (810) is connected to the second rotating shaft in a transmission connection. The second cutter head base plate (82) is fixed to the bottom of the second rotating shaft.

9. The automatic cleaning production line according to claim 1, characterized in that: The first cutter holder (73) is also fixed with a first wire brush (78), and the first scraper (74) and the first wire brush (78) are distributed at intervals along the rotation direction of the first cutter disc base plate (72); The second cutter holder (83) also has a second wire brush (811) fixed in it. The second scraper (84) and the second wire brush (811) are distributed at intervals along the rotation direction of the second cutter disc base plate (82).

10. The automatic cleaning production line according to claim 1, characterized in that: The second cleaning device (800) further includes a lifting assembly connected between the second cutter head base plate (82) and the inner hole cleaning base (85). The lifting assembly includes a lifting mounting seat (812) fixed to the bottom of the second cutter head base plate (82), a pair of side lifting plates (814) that are movable up and down on the lifting mounting seat (812) via linear guide rail assembly (813), a lifting connecting plate (815) fixed between the pair of side lifting plates (814), and a first compression spring (816) with its upper end mounted on the lifting connecting plate (815). The inner hole cleaning base (85) is fixed between the pair of side lifting plates (814), and the lower end of the first compression spring (816) abuts against the inner hole cleaning base (85).

11. An automatic cleaning method for prestressed end face flanges of precast piles, used for cleaning prestressed end face flanges, wherein the prestressed end face flanges include a head flange (101) with a sealing plate (103) fixed in the middle, and a tail flange (102) with a flange hole (104) in the middle, characterized in that: The automatic cleaning method uses the automatic cleaning production line according to any one of claims 1-10, and the automatic cleaning method includes the following steps: S1. The upper conveying roller (22) of the upper conveying device (200) rotates and conveys the prestressed end face flange forward to the first positioning conveying device (300), with the inner surface of the prestressed end face flange on the first positioning conveying device (300) facing upward. S2. The positioning conveying roller (42) of the first positioning conveying device (300) rotates and conveys the prestressed end face flange forward to the positioning clamping assembly (43); the clamping drive source (431) is activated to drive a pair of clamping jaws (432) to close, so that the pair of clamping jaws (432) clamp the outer periphery of the prestressed end face flange. S3. The first cutter head base plate (72) of the first cleaning device (700) descends until the first scraper (74) contacts the inner surface of the prestressed end face flange; the first cutter head base plate (72) of the first cleaning device (700) rotates and cleans the inner surface of the prestressed end face flange through the first scraper (74); S4. The clamping drive source (431) of the first positioning conveying device (300) is reset, causing a pair of clamping jaws (432) to open, causing the pair of clamping jaws (432) to loosen the prestressed end face flange, and the positioning conveying roller (42) of the first positioning conveying device (300) continues to convey the prestressed end face flange forward. S5. The flange inlet and outlet (521) of the flipping device (500) faces the first positioning conveying device (300). The prestressed end face flange conveyed forward by the first positioning conveying device (300) enters the flipping frame (52) through the flange inlet and outlet (521). The input roller (54) rotates and continues to convey the prestressed end face flange forward. S6. The flipping drive source (53) is activated, driving the flipping frame (52) to rotate 180°, so that the flange inlet and outlet (521) face the second positioning conveying device (400); the output roller (55) rotates, conveying the prestressed end face flange forward to the second positioning conveying device (400), with the outer surface of the prestressed end face flange on the second positioning conveying device (400) facing upward; S7. The positioning conveying roller (42) of the second positioning conveying device (400) rotates, conveying the prestressed end face flange forward to the positioning clamping assembly (43); the clamping drive source (431) is activated, driving a pair of clamping jaws (432) to close, so that the pair of clamping jaws (432) clamp the outer periphery of the prestressed end face flange. S8. The second cutter head base plate (82) of the second cleaning device (800) descends until the second scraper (84) contacts the outer surface of the prestressed end face flange; When the prestressed end face flange is a head plate flange (101), the third scraper (87) abuts against the sealing plate (103), and the second cutter disc bottom plate (82) of the second cleaning device (800) rotates, and the outer surface of the head plate flange (101) is cleaned by the second scraper (84) and the third scraper (87); When the prestressed end face flange is a tail plate flange (102), the third scraper (87) abuts against the hole wall of the flange hole (104), the second cutter disc base plate (82) of the second cleaning device (800) rotates, and the outer surface of the tail plate flange (102) is cleaned by the second scraper (84), and the hole wall of the flange hole (104) is cleaned by the third scraper (87); S9. The clamping drive source (431) of the second positioning conveying device (400) is reset, causing a pair of clamping jaws (432) to open, so that the pair of clamping jaws (432) release the prestressed end face flange, and the positioning conveying roller (42) of the second positioning conveying device (400) continues to convey the prestressed end face flange forward until the prestressed end face flange is conveyed forward to the lower conveying device (600). S10. The conveying roller (62) of the offline conveying device (600) rotates, conveying the prestressed end face flange forward to the unloading station.

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