A circular production line for prefabricated concrete components

Abstract

The present invention relates to a circular production line for precast concrete components, comprising a flexible curing kiln, a transverse track, a longitudinal track, a mobile mold platform, a shuttle car and a flexible material distributor, wherein the transverse track comprises a first track, a second track, a third track and a fourth track arranged in parallel in sequence; the flexible curing kiln is composed of a high-position curing kiln, a low-position curing kiln and a pre-curing kiln parallel to the transverse track, the low-position curing kiln is located between the high-position curing kiln and the pre-curing kiln, the high-position curing kiln for curing large components is arranged across the first track, the low-position curing kiln for curing small and medium-sized components is arranged across the second track, and the pre-curing kiln for pre-curing small and medium-sized components is arranged across the third track. The present invention can simultaneously carry out two-way circular circulation operations, is suitable for the production of multiple categories and large quantities of concrete components, has strong versatility, can effectively improve the utilization rate of equipment, and at the same time increase production efficiency.

Description

Technical Field

[0001] The invention relates to a production technology of assembled concrete prefabricated building components, in particular to a circular production line of prefabricated concrete components. Background Art

[0002] At present, the production of municipal prefabricated components (including curbstones, frame-type slope retaining walls, prefabricated inspection wells, manhole covers, stairs, prefabricated rainwater wells, etc.) is usually produced by independent molds, and the maintenance methods are mainly natural maintenance and simple maintenance. The optimal production frequency is one mold per day. Operators need to move frequently and work in the entire component workshop, which is labor-intensive and inefficient. In order to improve efficiency and reduce the work intensity of workers, it is necessary to develop a highly automated production line suitable for municipal prefabricated components.

[0003] At present, the typical production lines for prefabricated concrete products include composite panel production lines and integrated wall panel production lines. The composite panel production line focuses on the production of composite panels (commonly known as floor panels); the integrated wall panel production line can produce composite panels, interior walls, exterior walls (sandwich wall panels) and other components, but is limited by the height of the distribution machine and the height of the inlet and outlet of the pre-curing kiln and the curing kiln. The existing production line cannot produce components that are too high, such as bay windows. In addition, the composite panel production line and the integrated production line are mainly based on a single counterclockwise cycle, which is suitable for the production of a single variety. When there are many types of products, it is easy to cause product process conflicts on a single-direction production line. Therefore, both of the above production lines have obvious shortcomings. Summary of the invention

[0004] The purpose of the present invention is to propose a circular production line for precast concrete components. By developing and designing a combined curing kiln and a material placing machine with flexible characteristics and rationally laying out the production line, a production line suitable for multi-category and large-scale concrete components is established. The production line has high versatility and can greatly improve production efficiency.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A precast concrete component annular production line comprises a flexible curing kiln, a transverse track, a longitudinal track, a mobile mold platform, a shuttle car and a flexible material placing machine, wherein the transverse track comprises a first track, a second track, a third track and a fourth track which are arranged in parallel in sequence, and the lengths of the first track, the second track, the third track and the fourth track are equal;

[0007] The flexible curing kiln is composed of a high-position curing kiln, a low-position curing kiln and a pre-curing kiln which are parallel to the transverse track. The low-position curing kiln is located between the high-position curing kiln and the pre-curing kiln. The high-position curing kiln for curing large components is straddled on the first track, the low-position curing kiln for curing small and medium-sized components is straddled on the second track, and the pre-curing kiln for pre-curing small and medium-sized components is straddled on the third track.

[0008] The transverse track further includes a fifth track spaced apart at the right end of the first track and a sixth track spaced apart at the end of the fourth track;

[0009] The flexible concrete placing machine is arranged across the left end of the sixth track, and the lower part of the flexible concrete placing machine is set as the first pouring area for pouring small and medium-sized components;

[0010] The longitudinal track includes track A, track B and track C arranged in parallel, track A is located at the left end of the first track, the second track, the third track and the fourth track, track B is located at the right end of the first track, the second track, the third track and the fourth track, and track C is located at the right end of the fifth track and the sixth track;

[0011] The shuttle bus runs on the longitudinal track, the mobile mold platform runs on the transverse track, and the mobile mold platform is switched on the transverse track by the shuttle bus;

[0012] The high-position curing kiln comprises an insulating wall panel, an insulating partition, a lifting device and a sealing device. The horizontally arranged insulating partition is located between the parallelly arranged insulating wall panels and forms a tunnel-type kiln body with the insulating wall panels on both sides. The lifting device is arranged in the kiln body. The insulating partition can be lifted and lowered between the insulating wall panels on both sides through the lifting device. An openable sealing device is arranged between the insulating partition and the insulating wall panels on both sides. The insulating partition is a rectangular flat plate, the width of which is smaller than the spacing between the insulating wall panels on both sides. Guide holes are symmetrically arranged on both sides of the insulating partition and move on the lifting device through the guide holes.

[0013] The lifting device of the high-position curing kiln is composed of a support column, a cross bar, a winch, a wire rope and a fixed pulley block. The support columns are symmetrically arranged on both sides of the first track in the high-position curing kiln. A cross bar is provided above the support columns to keep the support columns stable. The thermal insulation partition is slidably connected to the support columns through guide holes on both sides thereof. The winch is arranged on the thermal insulation partition. A wire rope A is wound clockwise at one end of the rotating shaft of the winch, and a wire rope B is wound counterclockwise at the other end. The other ends of the wire ropes A and B are respectively passed around the fixed pulley block and fixedly connected to both sides of the upper surface of the thermal insulation partition. The fixed pulley block includes a fixed pulley A arranged on the cross bar and a fixed pulley B arranged on the thermal insulation partition.

[0014] The sealing device of the high-position curing kiln is composed of an L-shaped sliding sealing plate and a driving mechanism. The L-shaped sliding sealing plate is arranged on both sides of the upper surface of the thermal insulation partition. The L-shaped sliding sealing plate is composed of a horizontal plate and a vertical plate. The vertical plate is fixedly connected to one end of the horizontal plate, and the driving mechanism connected to the thermal insulation partition is evenly arranged on the horizontal plate; the driving mechanism includes a pushing connecting rod, a V-shaped connecting rod, an electric telescopic rod and a buffer compression spring. One end of the electric telescopic rod is hinged to the middle part of the thermal insulation partition, and the other end is hinged to one end of the V-shaped connecting rod. The bottom of the V-shaped connecting rod is hinged to the thermal insulation partition, and the other end of the V-shaped connecting rod is hinged to the pushing connecting rod. A buffer compression spring is arranged between the pushing connecting rod and the V-shaped connecting rod. The other end of the pushing connecting rod is hinged to the middle part of the upper end surface of the horizontal plate of the L-shaped sliding sealing plate. Under the push of the pushing connecting rod, the lower end surface of the horizontal plate of the L-shaped sliding sealing plate forms a seal with the upper end surface of the thermal insulation partition, and the side end surface of the vertical plate forms a seal with the thermal insulation wall panel.

[0015] The flexible material placing machine comprises a frame, an X-axis translation vehicle, a Y-axis translation vehicle and a material box. The frame is composed of two groups of columns arranged in parallel in the transverse direction and an X-axis track 601 arranged at the top of the columns. The body of the X-axis translation vehicle is a rectangular frame structure, and a parallel Y-axis track is arranged on the body. The X-axis translation vehicle runs on the X-axis track of the frame, and the Y-axis translation vehicle runs on the Y-axis track of the X-axis translation vehicle. The material box is composed of a fixed box, a movable box and a Z-axis driving mechanism. The fixed box is a rectangular box structure with upper and lower openings as a whole. The upper end thereof is penetrated in the Y-axis translation vehicle and is fixedly connected to the Y-axis translation vehicle, and the lower end thereof passes through the body of the X-axis translation vehicle and is slidably connected to the upper part of the movable box. A feeding port is arranged at the lower part of the movable box. Z-axis driving mechanisms are symmetrically arranged on both sides of the outer side of the fixed box, and the upper end of the Z-axis driving mechanism is fixedly connected to the fixed box, and the lower end is fixedly connected to the movable box.

[0016] The upper part of the movable box is a rectangular box structure matched with the fixed box, and the lower part of the movable box is a funnel-shaped structure with two parallel sides. The movable box is also provided with a stirring device, and the motor for driving the stirring device is arranged outside the movable box.

[0017] The left side of the track A is provided with an empty area A for placing large prefabricated components, and the right side of the track C is provided with an empty area C for placing small and medium-sized components.

[0018] The area where the fourth track is located is provided with a second casting area for casting large components.

[0019] A circulation area A is provided between the left end outlet and the track A of the flexible curing kiln, and a circulation area C is provided between the track B and the track C.

[0020] The beneficial effects of the present invention are as follows: the present invention has a reasonable structural layout, can carry out two-way circular circulation operations at the same time, is suitable for the production of multiple categories and large quantities of concrete components, and has strong versatility. The high-position curing kiln can be converted into a positioning curing kiln according to actual needs, which can effectively improve the utilization rate of the equipment and increase production efficiency at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a top view of the overall structure of the present invention.

[0022] Figure 2 It is a left side circulation schematic diagram of the present invention.

[0023] Figure 3 It is a schematic diagram of the right circulation of the present invention.

[0024] Figure 4 It is a schematic cross-sectional view of the flexible curing kiln of the present invention.

[0025] Figure 5 It is a partial top view of the high-position curing kiln of the present invention.

[0026] Figure 6 This is a cross-sectional schematic diagram of the lifting device of the high-position curing kiln.

[0027] Figure 7 It is a cross-sectional schematic diagram of the sealing device of the high-position curing kiln.

[0028] Figure 8 It is a schematic diagram of the overall structure of the flexible fabric placing machine.

[0029] Fig. 9 This is a partial top view of the flexible fabric placing machine.

[0030] In the figure, 101 is a first track, 102 is a second track, 103 is a third track, 104 is a fourth track, 105 is a fifth track, and 106 is a sixth track;

[0031] 201, track A, 202, track B, 203, track C;

[0032] 3. High-position curing kiln, 301. Insulation wall panel, 302. Insulation partition, 303. Support column, 304. Cross bar, 305. Winch, 306. Wire rope A, 307. Wire rope B, 308. Fixed pulley A, 309. Fixed pulley B, 310. L-shaped sliding sealing plate, 311. Push connecting rod, 312. V-shaped connecting rod, 313. Electric telescopic rod, 314. Buffer compression spring, 321. Cross plate, 322. Vertical plate;

[0033] 4. Low-level curing kiln, 5. Pre-curing kiln,

[0034] 601, X-axis track, 602, column, 603, X-axis translation vehicle, 631, Y-axis track, 604, Y-axis translation vehicle, 605, material box, 651, fixed box, 652, movable box, 653, Z-axis driving mechanism, 654, feeding port, 655, stirring device, 656, motor;

[0035] 7. Mobile formwork platform, 8. Shuttle bus, 9. Vacant area A, 10. Vacant area C, 11. Second casting area, 12. Circulation area A, 13. Circulation area C, 14. Overhead crane. DETAILED DESCRIPTION

[0036] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0037] like Figure 1 As shown, a precast concrete component annular production line includes a flexible curing kiln, a transverse track, a longitudinal track, a mobile mold platform, a shuttle car and a flexible material placing machine, wherein the transverse track includes a first track 101, a second track 102, a third track 103 and a fourth track 104 which are arranged in parallel in sequence, and the first track 101, the second track 102, the third track 103 and the fourth track 104 are equal in length;

[0038] like Figure 1 , Figure 4 As shown, the flexible curing kiln is composed of a high-position curing kiln 3, a low-position curing kiln 4 and a pre-curing kiln 5 which are parallel to the transverse track. The low-position curing kiln 4 is located between the high-position curing kiln 3 and the pre-curing kiln 5. The high-position curing kiln 3 for curing large components is straddled on the first track 101, the low-position curing kiln 4 for curing small and medium-sized components is straddled on the second track 102, and the pre-curing kiln 5 for pre-curing small and medium-sized components is straddled on the third track 103.

[0039] like Figure 1 As shown, the transverse track further includes a fifth track 105 spaced apart at the right end of the first track 101 and a sixth track 106 spaced apart at the end of the fourth track 104;

[0040] like Figure 1 As shown, the flexible concrete placing machine is arranged across the left end of the sixth track 106, and the lower part of the flexible concrete placing machine is set as the first pouring area for pouring small and medium-sized components;

[0041] like Figure 1As shown, the longitudinal track includes a track A201, a track B202 and a track C203 arranged in parallel, the track A201 is located at the left end of the first track 101, the second track 102, the third track 103 and the fourth track 104, the track B202 is located at the right end of the first track 101, the second track 102, the third track 103 and the fourth track 104, and the track C203 is located at the right end of the fifth track 105 and the sixth track 106;

[0042] like Figure 1 As shown, the shuttle bus 8 runs on the longitudinal track, the mobile mold platform 7 runs on the transverse track, and the mobile mold platform 7 is switched on the transverse track by the shuttle bus 8;

[0043] like Figure 5 , Figure 6 , Figure 7 As shown, the high-position curing kiln 3 includes an insulating wall panel 301, an insulating partition 302, a lifting device and a sealing device. The horizontally arranged insulating partition 302 is located between the parallelly arranged insulating wall panels 301 and forms a tunnel-type kiln body with the insulating wall panels 301 on both sides. The lifting device is arranged in the kiln body. The insulating partition 302 can be lifted and lowered between the insulating wall panels 301 on both sides through the lifting device. An openable sealing device is provided between the insulating partition 302 and the insulating wall panels 301 on both sides. The insulating partition 302 is a rectangular flat plate, and its width is smaller than the spacing between the insulating wall panels 301 on both sides. Guide holes are symmetrically provided on both sides of the insulating partition 302 and move on the lifting device through the guide holes.

[0044] like Figure 5 , Figure 6 , Figure 7 As shown, the lifting device of the high-position curing kiln 3 is composed of a support column 303, a cross bar 304, a winch 305, a steel wire rope and a fixed pulley block. The support columns 303 are symmetrically arranged on both sides of the first track 101 in the high-position curing kiln. A cross bar 304 is arranged above the support columns 303 to keep the support columns 303 stable. The thermal insulation partition 302 is slidably connected with the support columns 303 through guide holes on both sides thereof. The winch 305 is arranged on the thermal insulation partition 302. A steel wire rope A306 is wound clockwise at one end of the rotating shaft of the winch 305, and a steel wire rope B307 is wound counterclockwise at the other end. The other ends of the steel wire ropes A306 and B307 are respectively passed around the fixed pulley block and fixedly connected to both sides of the upper surface of the thermal insulation partition 302; the fixed pulley block includes a fixed pulley A308 arranged on the cross bar 304 and a fixed pulley B309 arranged on the thermal insulation partition 302.

[0045] like Figure 5 , Figure 6 , Figure 7As shown, the sealing device of the high-position curing kiln 3 is composed of an L-shaped sliding sealing plate 310 and a driving mechanism. The L-shaped sliding sealing plate 310 is arranged on both sides of the upper surface of the heat-insulating partition 302. The L-shaped sliding sealing plate 310 is composed of a horizontal plate 321 and a vertical plate 322. The vertical plate 322 is fixedly connected to one end of the horizontal plate 321. The horizontal plate 321 is evenly divided with a driving mechanism connected to the heat-insulating partition 302; the driving mechanism includes a pushing connecting rod 311, a V-shaped connecting rod 312, an electric telescopic rod 313 and a buffer compression spring 314. One end of the electric telescopic rod 313 is hinged to the heat-insulating partition 302. The middle part of the L-shaped sliding sealing plate 310 is hinged with the other end thereof and one end thereof is hinged with the V-shaped connecting rod 312. The bottom of the V-shaped connecting rod 312 is hinged with the thermal insulation partition 302. The other end of the V-shaped connecting rod 312 is hinged with the pushing connecting rod 311. A buffer compression spring 314 is provided between the pushing connecting rod 311 and the V-shaped connecting rod 312. The other end of the pushing connecting rod 311 is hinged with the middle part of the upper end surface of the transverse plate 321 of the L-shaped sliding sealing plate 310. Under the push of the pushing connecting rod 311, the lower end surface of the transverse plate 321 of the L-shaped sliding sealing plate 310 forms a seal with the upper end surface of the thermal insulation partition 302, and the side end surface of the vertical plate 322 forms a seal with the thermal insulation wall panel 301.

[0046] like Figure 1 , Figure 8 , Fig. 9 As shown, the flexible material placing machine includes a frame, an X-axis translation vehicle 603, a Y-axis translation vehicle 604 and a material box 605. The frame is composed of columns 602 arranged in parallel on both sides of the sixth track 106 and an X-axis track 601 arranged at the top of the column 602. The body of the X-axis translation vehicle 603 is a rectangular frame structure, and a parallel Y-axis track 631 is arranged on the body. The X-axis translation vehicle 603 runs on the X-axis track 601 of the frame, and the Y-axis translation vehicle 604 runs on the Y-axis track 631 of the X-axis translation vehicle 603; the material box 605 is made of a solid The fixed box 651 is composed of a fixed box body 651, a movable box body 652 and a Z-axis driving mechanism 653. The fixed box body 651 is a rectangular box structure with upper and lower openings. The upper end is passed through the Y-axis translation vehicle 604 and is fixedly connected to the Y-axis translation vehicle 604, and the lower end passes through the body of the X-axis translation vehicle 603 and is slidably connected to the upper part of the movable box body 652. A feeding port 654 is provided at the lower part of the movable box body 652. The Z-axis driving mechanism 653 is symmetrically arranged on both sides of the outside of the fixed box body 651. The upper end of the Z-axis driving mechanism 653 is fixedly connected to the fixed box body 651, and the lower end is fixedly connected to the movable box body 652.

[0047] like Figure 8 , Fig. 9As shown, the upper part of the movable box 652 is a rectangular box structure that matches the fixed box 651, and the lower part of the movable box 652 is a funnel-shaped structure with two parallel side surfaces. A stirring device 655 is also provided in the movable box 652, and a motor 656 for driving the stirring device 655 is arranged outside the movable box 652.

[0048] like Figure 1 As shown, the left side of the track A201 is provided with an empty area A9 for placing large prefabricated components, and the right side of the track C is provided with an empty area C10 for placing small and medium-sized components.

[0049] like Figure 1 As shown, the fourth track 104 is provided with a second pouring area 11 for pouring large components. Here, because the height of the component to be poured is greater than the feeding height of the flexible concrete feeder, a crane or a crane is used to lift the feeding hopper for pouring and feeding, mainly by manual operation.

[0050] like Figure 1 As shown, a circulation area A12 is provided between the left end outlet of the flexible curing kiln and the track A201, and a circulation area C13 is provided between the track B202 and the track C203.

[0051] The overall operation of the present invention also includes general equipment such as the overhead crane 14, which will not be described one by one here.

[0052] Principle of the present invention:

[0053] 1. The production of large components on the left is a counterclockwise cycle, such as Figure 2 As shown by the arrow in the middle, the specific process flow is as follows:

[0054] The component is steam-cured in the high-position curing kiln 3 for 5-8 hours (the curing time of the prefabricated component is mainly determined by the thickness of the component and the concrete mix ratio) and then taken out of the kiln. The ferry car 8 on the track A201 connects the component to the mobile mold platform 7 and transports it to one of the four vacant areas A9 on the left side of the production line;

[0055] After the movable mold platform 7 is in place, the mold is removed, demoulded, cleaned, mold release agent is applied, molds are assembled, reinforcements are placed, and embedded parts are installed. The entire process from demoulding to pouring is completed within 3 hours;

[0056] Use the shuttle bus 8 to transport the mobile formwork platform 8 to the fourth track 104 and move it to the right for re-inspection before pouring;

[0057] After the retest is completed, the flow continues to the right and pouring and vibrating operations are carried out in the second pouring area;

[0058] After pouring and vibration, move the mobile formwork platform 7 to track B202, and use the shuttle car 8 on track B202 to send the mobile formwork platform 7 to the high-level curing kiln 3 for curing; the time required will be different depending on the size and volume of the components. Taking the prefabricated rainwater well as an example, the curing time is 8 hours.

[0059] 2. The production of small and medium-sized components on the right is a clockwise cycle, such as Figure 3 As shown by the arrow in the middle, the specific process flow is as follows:

[0060] After the component is steamed in the low-level curing kiln 4 for 5-6 hours, it is taken out of the kiln and the component is connected to the movable mold platform 7 by the shuttle car 8 on the track B202 and transported to one of the two vacant areas C10 on the right side of the production line;

[0061] After the movable mold platform 7 is in place, the mold is removed, demoulded, cleaned, mold release agent is applied, molds are assembled, reinforcements are placed, and embedded parts are installed. The entire process from demoulding to pouring is completed within 2 hours;

[0062] Use the shuttle car 8 on the track C203 to transfer the mobile formwork platform 7 to the fourth track 104 and move it to the left for re-inspection before pouring;

[0063] After the retest is completed, continue to flow to the left and enter the first pouring area under the flexible concrete placing machine to perform pouring and vibrating operations;

[0064] After pouring and vibration, the movable mold platform 7 is moved to the left end of the fourth track 104 and is sent to the pre-curing kiln 5 by the shuttle bus 8 on track B for pre-curing.

[0065] After the pre-curing is completed, the mobile mold platform moves to the left and performs calendering and finishing operations in the circulation area A. After completion, the horizontal shuttle car 8 on the track A201 is used to transfer to the low-level curing kiln 4, and enters the low-level curing kiln 4 in sequence for curing; depending on the structure of the components, the rhythm will be different. Taking the ecological slope protection as an example, the curing time is 5 hours.

[0066] In a specific embodiment of the present invention, the flexible curing kiln is a combined high and low kiln, such as Figure 4 As shown, its structure is a steel structure integrated kiln. In order to achieve energy saving and versatility, the three longitudinal curing kilns are isolated with 100mm thick insulation boards; components over 1.5m high (such as downspouts) are sent to the high-position curing kiln; low-position curing kilns produce components less than 1.5m high, such as stairs; pre-curing kilns can be used to accelerate the initial setting of concrete on the outer surface of components less than 1.5m.

[0067] The three kilns can set temperature and humidity according to actual conditions to achieve switching between curing and pre-curing functions; among them, the curing temperature control range is: 50-65℃, the humidity control range is: 90%-100% and the pre-curing temperature control range is: 30-40℃.

[0068] The thermal insulation partition of the high-level curing kiln serves as the ceiling and can be automatically raised and lowered to reduce the curing space, thereby reducing energy consumption while ensuring the curing effect.

[0069] The flexible concrete placing machine is also one of the key equipment of the present invention. In order to meet the concrete placing needs of municipal components, the maximum lifting stroke distance from the mold platform is 0.85m. By increasing the height of the concrete placing machine frame and setting a liftable material box, the conventional maximum 500mm concrete placing height can be raised to 850mm.

[0070] By using the technical solution provided by the present invention, it is possible to change 1 mold per day to 2-3 molds per day according to different products, thereby greatly improving work efficiency.

[0071] In one embodiment of the present invention, the equipment of the ring production line is as shown in Table 1:

[0072] Table 1:

[0073]

[0074] According to the technical solution provided by the present invention, China Power Construction Luoyang Prefabricated Building Technology Co., Ltd. received an order from a customer in March 2020, requiring the delivery of 1,400 ecological slope protections within 20 days. Previously, 40 sets of molds were used according to the conventional production plan, and only 40 ecological slope protections could be produced per day; after applying the present invention, by changing the curing height of the high-level curing kiln and using both high-level curing kilns and low-level curing kilns for production, 80 ecological slope protections were produced per day, which has become a classic case of reducing costs and increasing efficiency.

[0075] Parts of the present invention not described in detail are prior art.

Claims

1. A precast concrete component annular production line, comprising a flexible curing kiln, a transverse track, a longitudinal track, a movable mold platform, a shuttle car and a flexible material placing machine, wherein the transverse track comprises a first track (101), a second track (102), a third track (103) and a fourth track (104) which are arranged in parallel in sequence, and the first track (101), the second track (102), the third track (103) and the fourth track (104) are of equal length; wherein: The flexible curing kiln is composed of a high-position curing kiln (3), a low-position curing kiln (4) and a pre-curing kiln (5) which are parallel to the transverse track. The low-position curing kiln (4) is located between the high-position curing kiln (3) and the pre-curing kiln (5). The high-position curing kiln (3) for curing large components is straddled on the first track (101), the low-position curing kiln (4) for curing small and medium-sized components is straddled on the second track (102), and the pre-curing kiln (5) for pre-curing small and medium-sized components is straddled on the third track (103). The transverse track further comprises a fifth track (105) arranged at intervals at the right end of the first track (101), and a sixth track (106) arranged at intervals at the end of the fourth track (104); The flexible concrete placing machine is arranged across the left end of the sixth track (106), and the lower part of the flexible concrete placing machine is set as a first pouring area for pouring small and medium-sized components; The longitudinal track comprises a track A (201), a track B (202) and a track C (203) arranged in parallel, the track A (201) being located at the left end of the first track (101), the second track (102), the third track (103) and the fourth track (104), the track B (202) being located at the right end of the first track (101), the second track (102), the third track (103) and the fourth track (104), and the track C (203) being located at the right end of the fifth track (105) and the sixth track (106); The shuttle bus (8) runs on the longitudinal track, the mobile mold platform (7) runs on the transverse track, and the mobile mold platform (7) is switched on the transverse track by the shuttle bus (8); The high-position curing kiln (3) comprises an insulation wall panel (301), an insulation partition (302), a lifting device and a sealing device. The insulation partition (302) is arranged horizontally between the insulation wall panels (301) arranged in parallel and forms a tunnel-type kiln body with the insulation wall panels (301) on both sides. The lifting device is arranged in the kiln body. The insulation partition (302) can be lifted and lowered between the insulation wall panels (301) on both sides by the lifting device. An openable sealing device is arranged between the insulation partition (302) and the insulation wall panels (301) on both sides. The insulation partition (302) is a rectangular flat plate, the width of which is smaller than the spacing between the insulation wall panels (301) on both sides. Guide holes are symmetrically arranged on both sides of the insulation partition (302) and the insulation partition (302) moves on the lifting device through the guide holes. The sealing device of the high-position curing kiln (3) is composed of an L-shaped sliding sealing plate (310) and a driving mechanism. The L-shaped sliding sealing plate (310) is arranged on both sides of the upper surface of the heat-insulating partition (302). The L-shaped sliding sealing plate (310) is composed of a horizontal plate (321) and a vertical plate (322). The vertical plate (322) is fixedly connected to one end of the horizontal plate (321). The driving mechanism connected to the heat-insulating partition (302) is equally arranged on the horizontal plate (321). The driving mechanism includes a pushing connecting rod (311), a V-shaped connecting rod (312), an electric telescopic rod (313) and a buffer compression spring (314). One end of the electric telescopic rod (313) is hinged to the middle of the heat-insulating partition (302). The bottom of the V-shaped connecting rod (312) is hinged to the heat-insulating partition (302), the other end of the V-shaped connecting rod (312) is hinged to the pushing connecting rod (311), a buffer compression spring (314) is provided between the pushing connecting rod (311) and the V-shaped connecting rod (312), the other end of the pushing connecting rod (311) is hinged to the middle part of the upper end surface of the horizontal plate (321) of the L-shaped sliding sealing plate (310), and under the push of the pushing connecting rod (311), the lower end surface of the horizontal plate (321) of the L-shaped sliding sealing plate (310) forms a seal with the upper end surface of the heat-insulating partition (302), and the side end surface of the vertical plate (322) of the L-shaped sliding sealing plate (310) forms a seal with the heat-insulating wall panel (301); The left side of the track A (201) is provided with an empty area A (9) for placing large prefabricated components, and the right side of the track C (203) is provided with an empty area C (10) for placing small and medium-sized components.

2. The precast concrete component annular production line according to claim 1 is characterized in that: The lifting device of the high-position curing kiln (3) is composed of a support column (303), a cross bar (304), a winch (305), a wire rope and a fixed pulley block. The support columns (303) are symmetrically arranged on both sides of the first track (101) in the high-position curing kiln. A cross bar (304) is arranged above the support column (303) to keep the support column (303) stable. The heat-insulating partition (302) is slidably connected to the support column (303) through the guide holes on both sides thereof. The winch (305) is provided to the support column (303) to move the support column (303) upward. ) is arranged on the heat-insulating baffle (302), one end of the rotating shaft of the winch (305) is wound with a steel wire rope A (306) in a clockwise manner, and the other end is wound with a steel wire rope B (307) in a counterclockwise manner, and the other ends of the steel wire rope A (306) and the steel wire rope B (307) are respectively passed around a fixed pulley block and fixedly connected to both sides of the upper surface of the heat-insulating baffle (302); the fixed pulley block includes a fixed pulley A (308) arranged on the cross bar (304) and a fixed pulley B (309) arranged on the heat-insulating baffle (302).

3. The precast concrete component annular production line according to claim 2 is characterized in that: The flexible material placing machine comprises a frame, an X-axis translation vehicle (603), a Y-axis translation vehicle (604) and a material box (605); the frame is composed of columns (602) arranged in parallel on both sides of a sixth track (106) and an X-direction track (601) arranged at the top of the columns (602); the body of the X-axis translation vehicle (603) is a rectangular frame structure, and a parallel Y-direction track (631) is arranged on the body; the X-axis translation vehicle (603) runs on the X-direction track (601) of the frame, and the Y-axis translation vehicle (604) runs on the Y-direction track (631) of the X-axis translation vehicle (603); the material box (605) is composed of a fixed box The fixed box (651) is composed of a body (651), a movable box (652) and a Z-axis driving mechanism (653). The fixed box (651) is a rectangular box structure with upper and lower openings. The upper end of the fixed box (651) is inserted into the Y-axis translation vehicle (604) and is fixedly connected to the Y-axis translation vehicle (604). The lower end of the fixed box (651) passes through the body of the X-axis translation vehicle (603) and is slidably connected to the upper part of the movable box (652). The lower part of the movable box (652) is provided with a feeding port (654). The Z-axis driving mechanism (653) is symmetrically arranged on both sides of the outside of the fixed box (651). The upper end of the Z-axis driving mechanism (653) is fixedly connected to the fixed box (651), and the lower end is fixedly connected to the movable box (652).

4. The precast concrete component annular production line according to claim 3 is characterized in that: The upper portion of the movable box (652) is a rectangular box structure that matches the fixed box (651), and the lower portion of the movable box (652) is a funnel-shaped structure with two parallel side surfaces. A stirring device (655) is also provided in the movable box (652), and a motor (656) for driving the stirring device (655) is provided outside the movable box (652).

5. The precast concrete component circular production line according to claim 1 is characterized in that: The area where the fourth track (104) is located is provided with a second casting area (11) for casting large components.

6. The precast concrete component circular production line according to claim 1, characterized in that: The flexible curing kiln has a circulation area A (12) between its left end outlet and track A (201), and a circulation area C (13) between track B (202) and track C (203).

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