CN212170806U

CN212170806U - Prefab production line for building

Info

Publication number: CN212170806U
Application number: CN202020573622.4U
Authority: CN
Inventors: 吴健
Original assignee: Zhangjiagang Yongmao Housing Industry Co ltd
Current assignee: Zhangjiagang Yongmao Housing Industry Co ltd
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2020-12-18
Anticipated expiration: 2030-04-17

Abstract

The utility model relates to a building prefab production technical field especially relates to a prefab production line for building, has solved among the prior art problem that the bench formwork clearance is unclean and remain the difficult recovery of concrete through handling. The utility model provides a prefab production line for building, includes the workstation, and the bottom of workstation is provided with transport assembly, and transport assembly is connected with dust absorption assembly through the connecting band, and transport assembly's top is provided with clearance mechanism, and clearance mechanism both sides are equipped with the promotion subassembly, and the top of workstation is provided with driving motor, and driving motor's output is provided with the transmission shaft, and the transmission shaft passes through connecting piece and clearance mechanism swing joint. The utility model discloses, clear up the bench formwork mesa through setting up the clearance mechanism, through the cooperation of scraper and clearance subassembly, it is better to clear up the effect relative to prior art, clears up cleaner; make bold concrete residue pulverize through the cooperation of rotary drum and dust absorption subassembly, carry out elementary recovery processing, make things convenient for the later stage to carry out recovery processing.

Description

Prefab production line for building

Technical Field

The utility model relates to a building prefab production technical field especially relates to a prefab production line for building.

Background

The prefabricated member for building includes beam, plate, column, building fitting, etc. and is a prefabricated building member made with concrete as basic material in factory. For assembly at the construction site. The concrete precast member is a material foundation for building industrialization, is widely applied to the fields of buildings, traffic, water conservancy and the like, and plays an important role in national economy. Such as prefabricated reinforced concrete column foundation, prefabricated steel structure steel column foundation, street lamp billboard column reinforced concrete foundation and prefabricated floor slab.

The production process flow of the prefabricated member comprises the flows of building construction drawing design, component disassembly design, mold design drawing, mold manufacturing, reinforcing steel bar processing and binding, water and electricity embedded part door and window pre-embedding, concrete pouring, maintenance and the like, wherein in the mold manufacturing of the concrete prefabricated member, the production process flow comprises the flows of mold bench formwork cleaning, bench formwork coating release agent coating, component supporting and the like.

Among the prior art, divide into the bench formwork clearance of fixed bench formwork and sport type at mould bench formwork clearance process, wherein at the bench formwork clearance of sport type, mainly be that the bench formwork clears up the remaining concrete residue in bench formwork surface through the clearance platform in the drive of cylinder or hydro-cylinder, prior art's clearance platform exists the problem in two aspects: firstly, the cleaning table in the prior art mainly cleans the residual concrete on the surface of the table die by means of a front scraper, and mainly scrapes the residual by means of a gap between the table die and the scraper, so that the concrete in the gap is easy to clean and is not clean, and meanwhile, the heights of the table dies of different models are different, the height between the cleaning mechanism at the top of the prior art and the table die is also not adjustable, so that the cleaning table cannot adapt to the cleaning table tops of the table dies of various types and different heights; secondly, prior art clears up the concrete on bench formwork surface, and remaining concrete has directly scraped the clearance groove in, and remaining concrete is not handled a bit, and is comparatively troublesome in follow-up recovery, can produce a large amount of dusts when striking off the concrete simultaneously, and very influence operational environment also causes certain influence to workman's health.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a prefab production line for building has solved among the prior art problem that the bench formwork clearance is unclean and remain the difficult recovery of concrete through handling.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a prefab production line for building, includes the workstation, and the bottom of workstation is provided with transport assembly, and transport assembly is connected with dust absorption assembly through the connecting band, and transport assembly's top is provided with clearance mechanism, and clearance mechanism both sides are equipped with the promotion subassembly, and the top of workstation is provided with driving motor, and driving motor's output is provided with the transmission shaft, and the transmission shaft passes through connecting piece and clearance mechanism swing joint.

Preferably, clearance mechanism includes clearance platform and clearance subassembly, and the clearance groove has been seted up to the inside of clearance platform, and the inside in clearance groove is provided with three gear that is the engaged state, and the below of gear is passed through the connecting rod and is connected with the clearance subassembly, and both sides all can be dismantled and be connected with the scraper around the clearance platform.

Preferably, the cleaning assembly comprises a rotating disc and a cleaning brush, a plurality of limit buckles distributed in an annular shape are arranged on the rotating disc, and movable grooves matched with the limit buckles are formed in the surface of the cleaning brush.

Preferably, the lifting assembly comprises a rotating frame, a moving rod and a disc, one end of the moving rod is fixedly connected with the two sides of the cleaning table, the other end of the moving rod is connected with the inner wall of the workbench in a sliding mode, a lifting belt is sleeved on the moving rod and is fixedly connected with the rotating frame, rotating frames are arranged on the two sides of the rotating frame, and a rotating rod is fixedly connected with the disc on one side of the rotating frame.

Preferably, one side of workstation is provided with the storage tank, and the one end of dwang runs through the storage tank, and one side cover that the dwang is close to the disc is equipped with the ring gear, and the dwang is worn to be equipped with from the driving wheel, from driving wheel and storage tank fixed connection.

Preferably, a matching groove is formed in the other side of the workbench, the other end of the rotating rod is located in the matching groove, a protruding block is arranged at the other end of the rotating rod, and a limiting groove matched with the protruding block is formed in the upper portion and the lower portion of the matching groove.

Preferably, two opposite sides of the workbench are provided with sliding grooves, and the moving rod is in sliding connection with the sliding grooves.

Preferably, the connecting piece includes the connecting block, has seted up logical groove in the clean-up table, and the connecting block is located logical inslot, and the connecting block rotates with the clean-up table to be connected, and the cylindrical groove has been seted up on the surface of connecting block, and the transmission shaft pegs graft to the cylindrical groove in, and the both sides of transmission shaft are provided with the movable block, have seted up the bar groove in the connecting block, movable block and bar groove sliding connection.

Preferably, an annular groove is formed in the cleaning platform, a transverse block is arranged on the surface of the connecting block, and the transverse block is in sliding connection with the annular groove.

Preferably, the conveying assembly comprises a rotary drum, the rotary drum is rotatably connected with the inner wall of the workbench through a rotating shaft, and a plurality of rotary drums are arranged at the bottom of the workbench.

Preferably, the dust collection assembly comprises a fan, dust collection grooves are formed in two sides of the workbench, the fan is located in the dust collection grooves and is rotatably connected with the dust collection grooves through a central shaft, and the central shaft of the fan and the connecting band rotate synchronously.

The utility model discloses possess following beneficial effect at least:

the utility model discloses, both sides all are provided with the scraper around the clearance platform, when the bench formwork moves, the scraper of clearance platform front side strikes off it tentatively earlier, carry out the secondary to it through the clearance subassembly and wipe off, the scraper of rethread rear side strikes off thrice, the scraper of rear side is lower than the scraper position of front side, clear up the bench formwork mesa through many times of cooperations, clear up the bench formwork through setting up the clearance mechanism, the clearance mechanism is divided into three steps and is cleared up the bench formwork, thereby relative prior art mainly with the help of the scraper of front portion clear up the remaining concrete on bench formwork surface, mainly with the help of the clearance between bench formwork and the scraper to strike off the residue, the multilayer of this scheme is clear away, the cleaning performance is better, and the clearance is cleaner; meanwhile, when the bench dies with different types and heights are used, the rotating rod is pulled outwards to separate a toothed ring on the rotating rod from the driven wheel, and then the rotating rod is rotated to drive the lifting belt to move upwards, so that the cleaning mechanism is driven to move upwards, and the bench dies with different heights can be adapted to clean the table top; the rotary drum is driven to rotate by the rotation of the bench formwork in the cleaning process, massive concrete residues are crushed by the acting force between the rotary drum and the rotary drum, primary crushing treatment can be carried out by the rotary drum, and recovery treatment in the later period is facilitated; the rotary drum drives the fan to rotate through the connecting band when rotating, so that dust generated in the concrete scraping process can be sucked away, the influence on the working environment is reduced, and the influence on the health of workers is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.

Fig. 1 is a front view of the present invention;

FIG. 2 is a schematic view of a front view of a partial structure of the cleaning mechanism of the present invention;

FIG. 3 is an enlarged view of area A of the present invention;

FIG. 4 is an enlarged view of area B of the present invention;

FIG. 5 is an enlarged view of area C of the present invention;

FIG. 6 is a side view of the cleaning mechanism of the present invention;

FIG. 7 is a schematic top view of a partial structure of the cleaning assembly of the present invention;

fig. 8 is a top view of the present invention;

fig. 9 is a schematic view of the top partial structure of the rotating frame according to the present invention.

In the figure: 1. a work table; 2. a delivery assembly; 201. a rotating drum; 202. a rotating shaft; 3. a connecting belt; 4. a dust collection assembly; 401. a fan; 402. a dust collection groove; 403. a central shaft; 5. a cleaning mechanism; 501. cleaning the platform; 502. cleaning the assembly; 5021. rotating the disc; 5022. cleaning a brush; 5023. a limit buckle; 5024. a movable groove; 503. cleaning the tank; 504. a gear; 505. a connecting rod; 506. a scraper; 6. a lifting assembly; 601. rotating the frame; 602. a travel bar; 603. a disc; 604. a lifting belt; 605. rotating the rod; 606. a containing groove; 607. a toothed ring; 608. a driven wheel; 609. a mating groove; 610. a bump; 611. defining a slot; 612. a sliding groove; 7. a drive motor; 8. a drive shaft; 9. a connecting member; 901. connecting blocks; 902. a through groove; 903. a cylindrical groove; 904. a moving block; 905. a strip-shaped groove; 906. an annular groove; 907. and (5) transverse blocks.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the first embodiment, referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 6 and fig. 7, a prefabricated part production line for buildings includes a workbench 1, a conveying assembly 2 is disposed at the bottom of the workbench 1, the conveying assembly 2 is connected with a dust collection assembly 4 through a connecting belt 3, a cleaning mechanism 5 is disposed above the conveying assembly 2, lifting assemblies 6 are disposed at two sides of the cleaning mechanism 5, a driving motor 7 is disposed at the top of the workbench 1, a transmission shaft 8 is disposed at an output end of the driving motor 7, the transmission shaft 8 is movably connected with the cleaning mechanism 5 through a connecting member 9, specifically, when the prefabricated part production line is used, a bench mold moves forward in the conveying assembly 2, when the bench mold moves in the conveying assembly 2, the conveying assembly 2 moves through the connecting belt 3 to move the dust collection assembly 4 to collect dust, and the bench mold cleans residual concrete on the surface through the cleaning mechanism 5 at the bottom, compared with the prior art, the linkage mode is adopted, so that the surface of the bench formwork can be cleaned, and the residual concrete can be subjected to primary treatment and is convenient to recover.

Further, clearance mechanism 5 includes clearance platform 501 and clearance subassembly 502, clearance groove 503 has been seted up to clearance platform 501's inside, clearance groove 503's inside is provided with three gear 504 that is the engaged state, the below of gear 504 is connected with clearance subassembly 502 through connecting rod 505, all the dismantlement of both sides is connected with scraper 506 around clearance platform 501, it is concrete, clearance mechanism 5 is through the meshing between three gear 504, the gear 504 in the middle of drives the gear 504 of both sides and rotates when rotating, simultaneously through coaxial pivoted principle, the clearance subassembly 502 that drives the bottom rotates.

Further, clearance subassembly 502 includes rolling disc 5021 and clearance brush 5022, be provided with a plurality of spacing knots 5023 that are the annular and distribute on the rolling disc 5021, the movable groove 5024 with spacing knot 5023 looks adaptation is seted up on the surface of clearance brush 5022, and is concrete, when using, gear 504 rotates and drives connecting rod 505 and rotate, connecting rod 505 drives rolling disc 5021 in the clearance subassembly 502 and rotates, rolling disc 5021 rotates and drives clearance brush 5022 and rotate, clearance brush 5022 carries out circular arc motion around spacing knot 5023, from this brush off the surface of bench formwork, movable groove 5024 can make the kinematic strength and the motion track of clearance brush 5022 bigger with the cooperation of spacing knot 5023, the whole washing is cleaner.

Further, lifting component 6 is including rotating frame 601, the one end of carriage release lever 602 and disc 603 carriage release lever 602 and clearance platform 501's both sides fixed connection, the other end of carriage release lever 602 and workstation 1's inner wall sliding connection, the cover is equipped with elevator belt 604 on the carriage release lever 602, elevator belt 604 and rotation frame 601 fixed connection, the both sides of rotating frame 601 are provided with dwang 605, one side dwang 605 fixedly connected with disc 603, it is concrete, the carousel rotates, the carousel drives and rotates frame 601, it reciprocates to drive elevator belt 604 from this, the platform mould height of relative different models is different, can adjust clearance platform 501's height and clear up the platform mould.

Further, one side of the workbench 1 is provided with the accommodating groove 606, one end of the rotating rod 605 runs through the accommodating groove 606, one side of the rotating rod 605 close to the disc 603 is sleeved with a toothed ring 607, the rotating rod 605 passes through a driven wheel 608, the driven wheel 608 is fixedly connected with the accommodating groove 606, concretely, the driven wheel 608 and the toothed ring 607 are matched to limit the rotating rod 605, the driven wheel 608 is sleeved on the rotating rod 605, the rotating rod 605 rotates to drive the driven wheel 608 to rotate, the rotating rod 605 is pushed when the rotating rod 605 does not rotate, the toothed ring 607 on the rotating rod 605 is clamped to the driven wheel 608, and therefore the rotating rod 605 cannot rotate.

Further, the other side of the workbench 1 is provided with a matching groove 609, the other end of the rotating rod 605 is located in the matching groove 609, the other end of the rotating rod 605 is provided with a bump 610, the upper part and the lower part of the matching groove 609 are provided with a limiting groove 611 matched with the bump 610, and specifically, the bump 610 and the limiting groove 611 limit the position of the rotating rod 605 and prevent the rotating rod from being separated from the matching groove 609.

Further, two opposite sides of the workbench 1 are provided with sliding grooves 612, the moving rod 602 is slidably connected with the sliding grooves 612, specifically, the sliding grooves 612 limit the moving direction of the cleaning table 501, and the cleaning mechanism 5 is kept to move vertically.

Further, connecting piece 9 includes connecting block 901, logical groove 902 has been seted up in clean-up platform 501, connecting block 901 is located logical groove 902, connecting block 901 rotates with clean-up platform 501 to be connected, cylindrical groove 903 has been seted up on connecting block 901's surface, 8 grafting of transmission shaft are to cylindrical groove 903 in, 8 both sides of transmission shaft are provided with movable block 904, set up bar groove 905 in the connecting block 901, movable block 904 and bar groove 905 sliding connection, it is specific, the setting of connecting piece 9 is that lifting unit 6 reciprocates, transmission shaft 8 can be connected with clean-up mechanism 5 through connecting piece 9 always, guarantee with this that transmission shaft 8 can drive gear 504 always and rotate, drive clean-up assembly 502 from this and move.

Further, an annular groove 906 is formed in the cleaning table 501, a cross block 907 is arranged on the surface of the connecting block 901, the cross block 907 is in sliding connection with the annular groove 906, specifically, the annular groove 906 and the cross block 907 limit the position of the connecting block 901, the connecting block is prevented from being separated from the cleaning table 501 during rotation, the cleaning table can rotate and cannot be separated after being arranged, and the operation reliability is guaranteed.

The scheme has the following working processes:

when the cleaning machine is used, the driving motor 7 is started, the driving motor 7 drives the connecting piece 9 to rotate through the transmission shaft 8, the connecting piece 9 drives the middle gear 504 in the bottom cleaning mechanism 5 to rotate through the connecting block 901, because the gear 504 and the gear 504 are in a meshed state, the middle gear 504 drives the gears 504 on two sides to rotate, the gear 504 drives the cleaning component 502 on the bottom to rotate through the connecting rod 505, the connecting rod 505 and the rotating disc 5021 rotate coaxially, the rotating disc 5021 drives the cleaning brush 5022 to move, the cleaning brush 5022 continuously moves around the limit buckle 5023 through the movable groove 5024 on the surface, so that concrete on the surface of a bench formwork is cleaned, scrapers 506 are arranged on the front side and the rear side of the cleaning bench formwork 501, when the bench formwork moves, the scrapers 506 on the front side of the cleaning bench formwork primarily scrape the concrete, and the secondary brushing is performed through the cleaning component 502, scraping for three times by a scraper 506 at the rear side, wherein the scraper 506 at the rear side is lower than the scraper 506 at the front side, and cleaning the table top of the table die by multiple matching; when the bench formwork with different heights is aimed at, the rotating rod 605 is pulled outwards, the toothed ring 607 on the rotating rod 605 is separated from the driven wheel 608, the rotating rod 605 is rotated again to drive the lifting belt 604 to move upwards, and therefore the cleaning mechanism 5 is driven to move upwards, and the bench formwork with different heights can be adapted to clean the surface of the bench 501.

According to the working process, the following steps are known:

the utility model discloses, come to clear up the bench formwork through setting up clearance mechanism 5, clearance mechanism 5 divide into three steps and clears up the bench formwork, both sides all are provided with scraper 506 around clearance platform 501, when the bench formwork moves, the scraper 506 of clearance platform 501 front side strikes off it earlier tentatively, brush it off through clearance subassembly 502 carrying out the secondary, the scraper 506 of rethread rear side strikes off thrice, the scraper 506 of rear side is lower than the scraper 506 position of front side, clear up the bench formwork mesa through many times of cooperations, thereby relative prior art mainly clear up the remaining concrete on bench formwork surface with the help of anterior scraper 506, mainly strike off the residue with the help of the clearance between bench formwork and the scraper 506, the multilayer of this scheme is clear away, the cleaning effect is better, and the clearance is cleaner; meanwhile, when the bench dies with different types and heights are cleaned, the rotating rod 605 is pulled outwards, the toothed ring 607 on the rotating rod 605 is separated from the driven wheel 608, the rotating rod 605 is rotated to drive the lifting belt 604 to move upwards, and therefore the cleaning mechanism 5 is driven to move upwards, and therefore the bench dies with different heights can be adapted to clean the surface of the bench 501.

In the second embodiment, please refer to fig. 5, fig. 8 and fig. 9, the conveying assembly 2 includes a rotating drum 201, the rotating drum 201 is rotatably connected to the inner wall of the working table 1 through a rotating shaft 202, a plurality of rotating drums 201 are disposed at the bottom of the working table 1, specifically, the bench formwork is disposed on the conveying assembly 2, and then the bench formwork is driven by an air cylinder to move, when the conveying assembly 2 moves, the bench formwork drives the rotating drum 201 to rotate, the cleaned concrete falls down to the collecting frame below the rotating drum 201, and when the concrete rotates through the rotating drum 201, the large concrete residues can be subjected to primary crushing treatment through the acting force between the rotating drums 201, so as to facilitate later recovery treatment.

Further, dust absorption assembly 4 includes fan 401, dust absorption groove 402 has been seted up to workstation 1's both sides, fan 401 is located dust absorption groove 402, fan 401 rotates with dust absorption groove 402 through center pin 403 and is connected, fan 401's center pin 403 and connecting band 3 synchronous rotation, it is concrete, drum 201 drives dust absorption assembly 4 through connecting band 3 and moves when rotating, dust absorption assembly 4 comprises fan 401, it does not mark in the fan 401 matched with play dirt passageway picture to be provided with one side of workstation 1, through coaxial rotation, connecting band 3 drives fan 401 and rotates, fan 401 can absorb away the dust that the concrete struck off in-process produced.

The scheme has the following working processes:

according to the scheme, the rotary drum 201 is driven to rotate through the rotation of the bench formwork in the cleaning process, massive concrete residues are crushed through the acting force between the rotary drum 201 and the rotary drum 201, primary crushing treatment can be performed through the rotary drum 201, and later recovery treatment is facilitated; drive fan 401 through connecting band 3 and rotate when rotary drum 201 rotates, can siphon away the dust that the concrete struck off the in-process and produced from this, reduce the influence to operational environment, reduce the health influence to the workman simultaneously.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a prefab production line for building, includes workstation (1), its characterized in that, the bottom of workstation (1) is provided with conveyor components (2), conveyor components (2) are connected with dust absorption component (4) through connecting band (3), the top of conveyor components (2) is provided with clearance mechanism (5), clearance mechanism (5) both sides are equipped with hoisting assembly (6), the top of workstation (1) is provided with driving motor (7), the output of driving motor (7) is provided with transmission shaft (8), transmission shaft (8) are through connecting piece (9) and clearance mechanism (5) swing joint.

2. The production line of the building prefabricated members as claimed in claim 1, wherein the cleaning mechanism (5) comprises a cleaning table (501) and a cleaning assembly (502), a cleaning groove (503) is formed in the cleaning table (501), three gears (504) in a meshed state are arranged in the cleaning groove (503), the lower part of each gear (504) is connected with the cleaning assembly (502) through a connecting rod (505), and scrapers (506) are detachably connected to the front side and the rear side of the cleaning table (501).

3. The prefabricated member production line for buildings according to claim 2, wherein the cleaning assembly (502) comprises a rotating disc (5021) and a cleaning brush (5022), a plurality of limit buckles (5023) distributed in an annular shape are arranged on the rotating disc (5021), and a movable groove (5024) matched with the limit buckles (5023) is formed in the surface of the cleaning brush (5022).

4. The prefabricated member production line for buildings as claimed in claim 2, wherein the lifting assembly (6) comprises a rotating frame (601), a moving rod (602) and a circular disc (603), one end of the moving rod (602) is fixedly connected with two sides of the cleaning platform (501), the other end of the moving rod (602) is slidably connected with the inner wall of the workbench (1), a lifting belt (604) is sleeved on the moving rod (602), the lifting belt (604) is fixedly connected with the rotating frame (601), two sides of the rotating frame (601) are provided with rotating rods (605), and one side of the rotating rods (605) is fixedly connected with the circular disc (603).

5. The production line of prefabricated members for buildings as claimed in claim 4, wherein a containing groove (606) is formed in one side of the working platform (1), one end of the rotating rod (605) penetrates through the containing groove (606), a toothed ring (607) is sleeved on one side of the rotating rod (605) close to the circular disc (603), a driven wheel (608) penetrates through the rotating rod (605), and the driven wheel (608) is fixedly connected with the containing groove (606).

6. A prefabricated member production line for buildings according to claim 4, characterized in that the other side of the workbench (1) is provided with a matching groove (609), the other end of the rotating rod (605) is positioned in the matching groove (609), the other end of the rotating rod (605) is provided with a bump (610), and the upper part and the lower part of the matching groove (609) are provided with a limiting groove (611) matched with the bump (610).

7. A production line of prefabricated members for buildings according to claim 6, characterized in that the opposite sides of said work bench (1) are provided with sliding grooves (612), and said moving rod (602) is slidably connected with said sliding grooves (612).

8. The production line of prefabricated members for buildings according to claim 4, wherein the connecting member (9) comprises a connecting block (901), a through groove (902) is formed in the cleaning table (501), the connecting block (901) is located in the through groove (902), the connecting block (901) is rotatably connected with the cleaning table (501), a cylindrical groove (903) is formed in the surface of the connecting block (901), the transmission shaft (8) is inserted into the cylindrical groove (903), moving blocks (904) are arranged on two sides of the transmission shaft (8), a strip-shaped groove (905) is formed in the connecting block (901), and the moving blocks (904) are slidably connected with the strip-shaped groove (905).

9. A production line of prefabricated members for buildings according to claim 8, characterized in that an annular groove (906) is formed in the cleaning table (501), a cross block (907) is arranged on the surface of the connecting block (901), and the cross block (907) is slidably connected with the annular groove (906).

10. A production line of prefabricated building elements according to claim 1, wherein said conveying assembly (2) comprises a rotating drum (201), said rotating drum (201) is rotatably connected with the inner wall of said working table (1) through a rotating shaft (202), and a plurality of rotating drums (201) are arranged at the bottom of said working table (1); dust absorption subassembly (4) include fan (401), dust absorption groove (402) have been seted up to the both sides of workstation (1), fan (401) are located in dust absorption groove (402), fan (401) through center pin (403) with dust absorption groove (402) rotate and are connected, the center pin (403) of fan (401) with connecting band (3) synchronous rotation.