Automatic trimming machine for prefabricated bridge concrete after molding

Abstract

The application discloses a prefabricated bridge concrete automatic trimming machine after forming, and relates to the technical field of prefabricated bridge concrete trimming. The prefabricated bridge concrete automatic trimming machine after forming comprises a lower opening mounting box, a roller is rotationally connected to the rear part of the mounting box through a rotating shaft, a crushing mechanism, a cutting mechanism and a polishing mechanism are sequentially arranged in the inner cavity of the mounting box from right to left, the crushing mechanism comprises a crushing cylinder, a supporting plate is fixedly connected to the right part of the rear cavity wall of the mounting box through a spring telescopic rod, a locking unit for clamping the lifting column is fixedly connected to the upper part of the outer wall of the crushing cylinder through a mounting plate, the prefabricated part raw edges can be subjected to multiple crushing treatment, so that the resistance during the raw edge trimming is reduced, the trimming speed is accelerated, the raw edges can be subjected to layered trimming treatment, so that the resistance during the trimming of the large raw edges is further reduced, and the trimming efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bridge concrete prefabricated member trimming, in particular to a prefabricated bridge concrete automatic edge trimming machine after forming. BACKGROUND

[0002] The prefabricated bridge is a bridge using pre-stressed concrete structure. The bridge with pre-stressed concrete structure has the advantages of full utilization of material performance, light weight, large stiffness, good crack resistance, large span and long structure life, and is widely used in bridge construction in China. In the production of prefabricated boards, the gaps in the formwork often cause the outer surface of the prefabricated board to have burrs and irregular shapes, which affects the connection between the prefabricated boards. In order to ensure the tightness of the connection and alignment between the prefabricated boards, the outer wall of the concrete prefabricated member needs to be trimmed after forming.

[0003] The Chinese utility model patent with the application number CN202021047673.X discloses a concrete prefabricated member edge trimming device. The device removes burrs by making the edge trimming cutter wheel contact the corners of the concrete prefabricated member and move along the corner direction while rotating. However, this processing method often takes a long time when encountering thick burrs, and in the process of friction removal, it is easy to cause the normal part connected with the burr to be directly removed, resulting in a pit, which needs to be repaired subsequently, increasing the labor intensity. SUMMARY

[0004] The technical problem to be solved: the prefabricated bridge concrete automatic edge trimming machine after forming can solve the problems pointed out in the background technology.

[0005] Technical solution: To achieve the above purpose, the application adopts the following technical scheme, a prefabricated bridge concrete forming automatic edge trimming machine, comprising a lower opening installation box, the rear of the installation box is rotatably connected with a roller through a rotating shaft, the inner cavity of the installation box is sequentially provided with a crushing mechanism, a cutting mechanism and a polishing mechanism from right to left, the crushing mechanism comprises a support plate, the right part of the rear cavity wall of the installation box is slidably connected with the support plate through a spring telescopic rod, the right part of the upper end surface of the support plate is fixedly connected with an L-shaped pull rod, the front side of the rotating shaft is fixedly connected with a jacking rod for cooperating with the L-shaped pull rod, a plurality of crushing cylinders are fixedly connected inside the support plate at equal intervals, a plurality of crushing cutter heads are fixedly connected around the lower end surface of the crushing cylinder, a sliding column is slidably arranged in the crushing cylinder, a crushing disc is rotatably connected to the lower end of the sliding column through a top spring rod, a plurality of crushing teeth are fixedly connected around the lower end surface of the crushing disc, a circular sleeve is fixedly connected to the lower part of the outer surface wall of the sliding column, two spiral drive grooves are formed in the outer surface wall of the circular sleeve, a sliding column is fixedly connected to the upper end surface of the crushing disc through a vertical plate and slidably connected with the spiral drive grooves, a strip-shaped through groove is formed in the front part of the outer surface wall of the crushing cylinder, a pull column is slidably arranged in the strip-shaped through groove and fixedly connected to the outside of the sliding column, and an elastic pull rope is fixedly connected between the pull column and the crushing cylinder, the outer surface wall of the crushing cylinder is hingedly connected with a rotating strip frame through a connecting plate, the rear cavity wall of the installation box is fixedly connected with a plurality of push rods corresponding to the rotating strip frame and used for cooperating with the rotating strip frame, and the upper part of the outer surface wall of the crushing cylinder is fixedly connected with a locking unit for clamping the pull column.

[0006] Further, the locking unit comprises a sliding rod, a sliding ring, a trapezoidal clamping tongue, a disc, a rope and a counterweight ball, the front end surface of the mounting plate is fixedly connected with a sliding rod through a fixed block, the sliding rod is slidably connected with a sliding ring outside, and a limiting spring is fixedly connected between the sliding ring and the sliding rod, the upper part of the sliding ring is fixedly connected with a trapezoidal clamping tongue, the front end surface of the mounting plate is rotatably connected with a disc, and a holding spring is fixedly connected between the front end surface of the mounting plate and the disc through a convex rod, the upper part of the disc and the right end surface of the trapezoidal clamping tongue are fixedly connected with a rope, and the right part of the outer surface wall of the disc is fixedly connected with a counterweight ball through a fixed rod.

[0007] Further, the polishing mechanism comprises an L-shaped spring telescopic frame, a polishing belt, an inclined clamp, a cleaning brush plate and a rotating wheel, the left part of the lower end surface of the mounting box is fixedly connected with the L-shaped spring telescopic frame, shaft wheels are rotationally connected to the end and the corner of the left end surface of the L-shaped spring telescopic frame, the polishing belt is rotationally connected to the outside of the shaft wheels, the inclined clamp is fixedly connected to the upper part of the horizontal section of the L-shaped spring telescopic frame through a fixed plate, the cleaning brush plate is slidably connected to the inner upper cavity wall of the inclined clamp through a slot, springs are fixedly connected between the slot and the cleaning brush plate, the rotating wheel is rotationally connected to the upper surface wall of the polishing belt through a protruding plate on the upper cavity wall of the inclined clamp, and an arc-shaped block in contact with the cleaning brush plate is fixedly connected to the side of the rotating wheel close to the cleaning brush plate, and the left end surface of the horizontal section of the L-shaped spring telescopic frame is fixedly connected with the collecting box through a connecting block.

[0008] Further, the cutting mechanism comprises upper sawing plates and lower sawing plates, the lower end surface of the mounting box is fixedly connected with an ear plate, two inclined plates are fixedly connected to the upper and lower parts of the rear end surface of the ear plate through a reciprocating electric telescopic rod, a plurality of upper sawing plates are equidistantly fixedly connected to the rear end surface of the upper inclined plate, a plurality of lower sawing plates in contact with the upper sawing plates are equidistantly fixedly connected to the rear end surface of the lower inclined plate, and adjacent upper sawing plates and adjacent lower sawing plates are arranged in a stepped manner.

[0009] Further, the inner cavity of the crushing cylinder is symmetrically provided with a positioning sliding groove, and the outer part of the sliding column is fixedly connected with a positioning sliding plate slidably arranged in the inner part of the positioning sliding groove.

[0010] Further, the front end surface of the mounting plate and located directly above the fixed rod is fixedly connected with a limiting block.

[0011] Further, the left and right end surfaces of the mounting box are rotationally connected with auxiliary wheels through spring telescopic adaptive rods.

[0012] Further, the left part of the lower end surface of the mounting box is fixedly connected with an inclined scraper through a support column.

[0013] Beneficial effects: (1) In the moving process, the rotation of the roller drives the rotation of the jacking rod, the combination of the jacking rod and the L-shaped lifting rod drives the slow lifting of the crushing cylinder, and under the action of the spring telescopic rod in the compressed state, the crushing cylinder quickly descends to impact the burr part, then the elastic pull rope stretches the lifting column to drive the rapid descent of the crushing disc to perform secondary impact on the burr part, so that the burr part with a larger area can be crushed, thereby reducing the resistance during burr trimming, accelerating the trimming speed and improving the trimming efficiency.

[0014] (2) The reciprocating movement of the upper sawing plates and the lower sawing plates arranged in a stepped manner can trim the thicker burr in layers, thereby further reducing the resistance during trimming and improving the trimming effect.

[0015] (3) the part of the prefabricated plate after trimming is polished and ground by the polishing belt, so that the edge is smoother, the close adhesion of the prefabricated plate when butting is ensured, meanwhile, the upper part of the polishing belt is in an inclined state through the inclined clamp, and the cleaning brush reciprocates by the rotation of the polishing belt and the cooperation with the rotating wheel and the arc-shaped block, so that the dust attached to the surface of the polishing belt can be removed in time, and the grinding effect of the polishing belt is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0017] Figure 2 It is a schematic diagram of the rear view angle of the overall structure of the present application.

[0018] Figure 3 It is a schematic diagram of the overall structure of the present application.

[0019] Figure 4 It is a schematic diagram of the overall structure of the present application.

[0020] Figure 5 It is a schematic diagram of the overall structure of the present application. Figure 4

[0021] Figure 6 It is a schematic diagram of the overall structure of the present application.

[0022] Figure 7 It is a schematic diagram of the overall structure of the present application.

[0023] Figure 8 It is a schematic diagram of the overall structure of the present application.

[0024] Figure 9 It is a schematic diagram of the overall structure of the present application.

[0025] Figure 10 It is a schematic diagram of the overall structure of the present application.

[0026] ​In the figure: 1, installation box; 2, roller; 3, crushing mechanism; 31, crushing cylinder; 32, support plate; 33, L-shaped lifting rod; 34, jacking rod; 35, sliding column; 36, crushing disc; 37, lifting column; 38, elastic pull rope; 39, locking unit; 391, sliding rod; 392, sliding ring; 393, trapezoidal clamping tongue; 394, disc; 395, rope; 396, counterweight ball; 397, holding spring; 310, rotating strip frame; 311, top spring rod; 312, round sleeve; 313, spiral drive groove; 314, sliding column; 315, push column; 4, cutting mechanism; 41, upper sawing plate; 42, lower sawing plate; 43, reciprocating electric telescopic rod; 5, polishing mechanism; 51, L-shaped spring telescopic frame; 52, polishing belt; 53, inclined clamp; 54, cleaning brush plate; 55, rotating wheel; 56, arc block; 6, collection box; 7, positioning sliding groove; 8, positioning sliding plate; 9, limiting block; 10, auxiliary wheel; 11, inclined scraper; 12, spring telescopic rod. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0028] Please refer to Figure 1 , Figure 2 and Figure 3 , the present application provides a technical solution: a prefabricated bridge concrete automatic edge trimmer after forming, including the lower opening installation box 1, the installation box 1 rear part is rotatably connected with the roller 2 through the rotating shaft, the left end surface and the right end surface of the installation box 1 are rotatably connected with the auxiliary wheel 10 through the spring telescopic adaptive rod, the crushing mechanism 3, the cutting mechanism 4 and the polishing mechanism 5 are sequentially installed in the inner cavity of the installation box 1 from right to left.

[0029] Please refer to Figure 4 and Figure 6In the embodiment, the crushing mechanism 3 comprises a support plate 32, the right part of the rear cavity wall of the mounting box 1 is slidably connected with the support plate 32 through the spring telescopic rod 12, the upper end surface right part of the support plate 32 is fixedly connected with an L-shaped pull rod 33, the front side of the rotating shaft is fixedly connected with a jacking rod 34 used for cooperating with the L-shaped pull rod 33, a plurality of crushing cylinders 31 are fixedly and equidistantly connected in the support plate 32, a plurality of crushing cutter heads are uniformly fixedly connected in the circumferences of the lower end surfaces of the crushing cylinders 31, a sliding column 35 is slidably arranged in the crushing cylinders 31, the crushing cylinders 31 are symmetrically provided with positioning sliding grooves 7 in the inner cavities, the sliding column 35 is fixedly connected with a positioning sliding plate 8 slidably arranged in the positioning sliding grooves 7, the lower end of the sliding column 35 is rotatably connected with a crushing disc 36 through the jacking spring rod 311, a plurality of crushing teeth are uniformly fixedly connected in the circumferences of the lower end surfaces of the crushing disc 36, a round sleeve 312 is fixedly connected to the lower part of the outer surface wall of the sliding column 35, two spiral driving grooves 313 are formed in the outer surface wall of the round sleeve 312, a sliding column 314 slidably connected with the spiral driving grooves 313 is fixedly connected to the upper end surface of the crushing disc 36 through a vertical plate, a strip-shaped through groove is formed in the front part of the outer surface wall of the crushing cylinder 31, a pull column 37 slidably arranged in the strip-shaped through groove is fixedly connected to the outer part of the sliding column 35, and an elastic pull rope 38 is fixedly connected between the pull column 37 and the crushing cylinder 31, a rotating strip frame 310 slidably arranged outside the pull column 37 is hingedly connected to the outer surface wall of the crushing cylinder 31 through a connecting plate, a plurality of dial columns 315 corresponding to the rotating strip frame 310 and used for cooperating with the rotating strip frame 310 are equidistantly fixedly connected to the rear cavity wall of the mounting box 1, and a locking unit 39 used for clamping the pull column 37 is fixedly connected to the upper part of the outer surface wall of the crushing cylinder 31 through a mounting plate.

[0030] Please refer to Figure 5 The locking unit 39 comprises a sliding rod 391, a sliding ring 392, a trapezoidal clamping tongue 393, a disc 394, a rope 395 and a counterweight ball 396, the sliding rod 391 is fixedly connected to the front end surface of the mounting plate through a fixed block, the sliding ring 392 is slidably connected to the outer part of the sliding rod 391, and a limiting spring is fixedly connected between the sliding ring 392 and the sliding rod 391, the trapezoidal clamping tongue 393 is fixedly connected to the upper part of the sliding ring 392, the disc 394 is rotatably connected to the front end surface of the mounting plate, a holding spring 397 is fixedly connected between the front end surface of the mounting plate and the disc 394 through a convex rod, the rope 395 is fixedly connected to the upper part of the disc 394 and the right end surface of the trapezoidal clamping tongue 393, the counterweight ball 396 is fixedly connected to the right part of the outer surface wall of the disc 394 through a fixed rod, and a limiting block 9 is fixedly connected to the front end surface of the mounting plate and located directly above the fixed rod.

[0031] The installation box 1 is placed above the rough edge, and then the installation box 1 is pushed to move on the concrete preform, the rotating roller 2 drives the jacking rod 34 to rotate through the rotating shaft, and when the end of the jacking rod 34 and the lower part of the transverse section of the L-shaped pull rod 33 abut, the L-shaped pull rod 33 is driven to gradually move upwards, and the L-shaped pull rod 33 then drives the support plate 32 to rise, at this time the spring telescopic rod 12 is compressed, when the jacking rod 34 rotates to the position where the end of the jacking rod 34 and the L-shaped pull rod 33 are disengaged, the L-shaped pull rod 33 loses the restraint of the jacking rod 34, and then the spring telescopic rod 12 in the compressed state is reset to drive the support plate 32 to quickly move downwards, and the support plate 32 then drives the crushing cylinder 31 to quickly descend until the crushing cutter head hits the rough edge to preliminarily crush the rough edge, the pull column 37 is in the initial position of the upper part of the strip-shaped through slot and abuts against the upper part of the trapezoidal clavus 393, at this time the elastic pull rope 38 is in the stretched state, when the crushing cylinder 31 hits the rough edge and stops, the counterweight ball 396 moves downwards under the action of inertia and drives the disc 394 to rotate through the fixed rod, the disc 394 then drives the trapezoidal clavus 393 to move rightwards through the rope 395, the trapezoidal clavus 393 loses the limitation of the pull column 37, and then the elastic pull rope 38 in the stretched state is contracted to drive the pull column 37 to descend, the pull column 37 then drives the sliding column 35 to quickly descend until the crushing disc 36 abuts against the rough edge, at this time the sliding column 35 drives the circular sleeve 312 to continue to move downwards by a distance under the action of inertia, and then the spiral driving groove 313 extrudes the sliding column 314 to drive the crushing disc 36 to rotate, thereby crushing the rough edge for the second time, and in the process of ascending of the crushing cylinder 31, the rotating strip frame 310 is driven to rotate the right part upwards through the push column 315 to drive the pull column 37 to ascend and re-enter the locking unit 39.

[0032] Please refer to Figure 7 In the embodiment, the cutting mechanism 4 comprises upper sawing plates 41 and lower sawing plates 42, the lower end surface of the installation box 1 is fixedly connected with an ear plate, the rear end surface of the ear plate is fixedly connected with two inclined plates through the reciprocating electric telescopic rod 43, the rear end surface of the upper inclined plate is fixedly connected with a plurality of upper sawing plates 41 at equal intervals, the rear end surface of the lower inclined plate is fixedly connected with a plurality of lower sawing plates 42 which are in close contact with the upper sawing plates 41 at equal intervals, and adjacent upper sawing plates 41 and adjacent lower sawing plates 42 are arranged in a stepped manner, the inclined plates are driven to reciprocate through the reciprocating electric telescopic rod 43, and the inclined plates then drive the upper sawing plates 41 and the lower sawing plates 42 to reciprocate, and since the upper sawing plates 41 and the sawing plates are arranged in a stepped manner, the rough edge can be subjected to layered cutting and removal treatment, the resistance during edging is reduced, and the problem that the preform is damaged due to excessive removal of the rough edge at one time is avoided.

[0033] Please refer to Figure 2 , Figure 8 , Figure 9 andFigure 10 In the embodiment, the polishing mechanism 5 comprises an L-shaped spring telescopic frame 51, a polishing belt 52, an inclined clamp 53, a cleaning brush plate 54 and a rotating wheel 55. The L-shaped spring telescopic frame 51 is fixedly connected to the left part of the lower end surface of the mounting box 1. Shaft wheels are rotatably connected to the end and the corner of the left end surface of the L-shaped spring telescopic frame 51. The polishing belt 52 is rotatably connected to the outside of the shaft wheels. The inclined clamp 53 is fixedly connected to the upper part of the horizontal section of the L-shaped spring telescopic frame 51 through a fixed plate. The cleaning brush plate 54 is slidably connected to the inner upper cavity wall of the inclined clamp 53 through a slot. A spring is fixedly connected between the slot and the cleaning brush plate 54. The rotating wheel 55 is rotatably connected to the upper surface wall of the polishing belt 52 through a lug plate. The arc-shaped block 56 is fixedly connected to the side of the rotating wheel 55 close to the cleaning brush plate 54. The arc-shaped block 56 is in contact with the cleaning brush plate 54. The collecting box 6 is fixedly connected to the left end surface of the horizontal section of the L-shaped spring telescopic frame 51 through a connecting block. The inclined scraper 11 is fixedly connected to the left part of the lower end surface of the mounting box 1 through a support column.

[0034] The shaft wheels are driven to rotate by the external driving device. Then the polishing belt 52 is driven to rotate to polish the surface of the prefabricated plate after the trimming. When the polishing belt 52 rotates to the position of the inclined clamp 53, the rotating wheel 55 in contact with the polishing belt 52 is driven to rotate. Then the rotating wheel 55 drives the cleaning brush to reciprocate through the arc-shaped block 56 to remove the dust attached to the polishing belt 52. Since the upper part of the polishing belt 52 is inclined, the removed dust falls into the collecting box 6 under the action of gravity, so that the polishing belt 52 can always maintain good polishing ability. Finally, the dust on the prefabricated plate is scraped off by the inclined scraper 11, which saves the subsequent cleaning step.

[0035] In work, first, the mounting box 1 is placed above the raw edge. Then the mounting box 1 is pushed to move. In the moving process, the shaft wheels are driven to rotate by the rotation of the rollers 2 to drive the crushing mechanism 3 to operate. The crushing mechanism 3 crushes the raw edge for multiple times to reduce the resistance during the trimming of the raw edge and accelerate the trimming speed. Then the crushed raw edge is removed in layers by the cutting mechanism 4. Subsequently, the trimmed part is polished by the polishing mechanism 5. Finally, the dust generated in the trimming process is scraped off by the inclined scraper 11.

[0036] It has to be noted that, in the present document, the terms "first", "second", etc. merely serve to identify different entities or actions and do not necessarily require or imply any actual relationship or order between these entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. In other words, without further restriction, reference to elements will not, without more limitations, exclude additional, unrecited elements of a process, method, article, or apparatus.

[0037] While embodiments of the application have been shown and described, it is to be understood that the application is not limited to these embodiments. Rather, it is the intention to cover any variations and modifications, provided they fall within the scope of the application as defined by the appended claims and their equivalents.

Claims

1. A post-moulding automatic edging machine for precast bridge concrete, comprising a lower open mounting box (1), characterised in that: The rear of the installation box (1) is rotatably connected with a roller (2) through a rotating shaft, and the inner cavity of the installation box (1) is sequentially provided from right to left with a crushing mechanism (3), a cutting mechanism (4) and a polishing mechanism (5); The crushing mechanism (3) comprises a support plate (32), the right part of the rear cavity wall of the installation box (1) is slidably connected with the support plate (32) through a spring telescopic rod (12), the right part of the upper end face of the support plate (32) is fixedly connected with an L-shaped pull rod (33), the front side of the rotating shaft is fixedly connected with a jacking rod (34), a plurality of crushing cylinders (31) are fixedly connected at equal intervals in the support plate (32), a plurality of crushing cutter heads are uniformly fixedly connected around the lower end face of the crushing cylinder (31), a sliding column (35) is slidably arranged in the crushing cylinder (31), the lower end of the sliding column (35) is rotatably connected with a crushing disc (36) through a jacking spring rod (311), a plurality of crushing teeth are uniformly fixedly connected around the lower end face of the crushing disc (36), a circular sleeve (312) is fixedly connected to the lower part of the outer surface wall of the sliding column (35), two spiral drive grooves (313) are formed in the outer surface wall of the circular sleeve (312), and the upper end face of the crushing disc (36) is fixedly connected with a sliding column (314) which is slidably connected with the spiral drive grooves (313) through a vertical plate. A strip-shaped through groove is formed in the front part of the outer surface wall of the crushing cylinder (31), a pull column (37) is fixedly connected to the outside of the crushing cylinder (31) and slidably arranged in the strip-shaped through groove, an elastic pull rope (38) is fixedly connected between the pull column (37) and the crushing cylinder (31), and a rotating strip frame (310) slidably arranged outside the pull column (37) is hingedly connected to the outer surface wall of the crushing cylinder (31) through a connecting plate, a plurality of dial columns (315) are fixedly connected to the rear cavity wall of the installation box (1) at equal intervals, and a locking unit (39) for clamping the pull column (37) is fixedly connected to the upper part of the outer surface wall of the crushing cylinder (31) through a mounting plate.

2. The post-molding automatic edge trimming machine for precast bridge concrete according to claim 1, characterized in that: The locking unit (39) comprises a sliding rod (391), a sliding ring (392), a trapezoidal clamping tongue (393), a disc (394), a rope (395) and a counterweight ball (396), the front end face of the mounting plate is fixedly connected with the sliding rod (391) through a fixed block, the sliding rod (391) is slidably connected with the sliding ring (392), a limiting spring is fixedly connected between the sliding ring (392) and the sliding rod (391), the upper part of the sliding ring (392) is fixedly connected with the trapezoidal clamping tongue (393), the front end face of the mounting plate is rotatably connected with the disc (394), a holding spring (397) is fixedly connected between the front end face of the mounting plate and the disc (394) through a protruding rod, the upper part of the disc (394) and the right end face of the trapezoidal clamping tongue (393) are fixedly connected with the rope (395), and the right part of the outer surface wall of the disc (394) is fixedly connected with the counterweight ball (396) through a fixed rod.

3. The post-casting automatic edge-trimming machine for precast bridge concrete according to claim 1, characterized in that: The polishing mechanism (5) comprises an L-shaped spring telescopic frame (51), a polishing belt (52), an inclined clamp (53), a cleaning brush plate (54) and a rotating wheel (55), the left part of the lower end surface of the mounting box (1) is fixedly connected with the L-shaped spring telescopic frame (51), the left end surface and the corner of the L-shaped spring telescopic frame (51) are rotatably connected with shaft wheels, the shaft wheels are rotatably connected with the polishing belt (52) outside, the upper part of the horizontal section of the L-shaped spring telescopic frame (51) is fixedly connected with the inclined clamp (53) through a fixed plate, the inner upper cavity wall of the inclined clamp (53) is slidably connected with the cleaning brush plate (54) through a slot, a spring is fixedly connected between the slot and the cleaning brush plate (54), the upper cavity wall of the inclined clamp (53) is rotatably connected with the rotating wheel (55) abutting against the upper wall of the polishing belt (52) through a lug plate, and the side of the rotating wheel (55) close to the cleaning brush plate (54) is fixedly connected with the arc-shaped block (56) in contact with the cleaning brush plate (54), and the left end surface of the horizontal section of the L-shaped spring telescopic frame (51) is fixedly connected with the collecting box (6) through a connecting block.

4. The post-casting automatic edge-trimming machine for precast bridge concrete according to claim 1, characterized in that: The cutting mechanism (4) comprises an upper sawing plate (41) and a lower sawing plate (42), the lower end surface of the mounting box (1) is fixedly connected with an ear plate, the rear end surface of the ear plate is fixedly connected with two inclined plates through a reciprocating electric telescopic rod (43) up and down, the rear end surface of the upper inclined plate is fixedly connected with a plurality of upper sawing plates (41) at equal intervals, the rear end surface of the lower inclined plate is fixedly connected with a plurality of lower sawing plates (42) at equal intervals and in contact with the upper sawing plates (41), and adjacent upper sawing plates (41) and adjacent lower sawing plates (42) are arranged in a stepped manner.

5. The post-casting automatic trimming machine for prefabricated bridge concrete according to claim 1, characterized in that: The inner cavity of the crushing cylinder (31) is symmetrically provided with a positioning sliding groove (7), and the outer portion of the sliding column (35) is fixedly connected with a positioning sliding plate (8) slidably arranged in the inner portion of the positioning sliding groove (7).

6. The post-casting automatic edge trimmer for precast bridge concrete as claimed in claim 2, characterized in that: The front end surface of the mounting plate and above the fixed rod is fixedly connected with a limiting block (9).

7. The post-casting automatic edge trimmer for precast bridge concrete as claimed in claim 1, wherein: The left end surface and the right end surface of the mounting box (1) are rotatably connected with auxiliary wheels (10) through spring telescopic adaptive rods.

8. The post-casting automatic edge trimmer for precast bridge concrete as claimed in claim 1, wherein: The lower left part of the mounting box (1) is fixedly connected with an inclined scraper (11) through a support column.

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