An intelligent flipping system for a split floor

Abstract

The utility model provides a kind of intelligent turnover system for split base, ground turns over component includes fixed removal seat and turnover seat, the inside of conveying chain machine is equipped with magnetic attraction positioning fixed seat, the upper surface of magnetic attraction positioning fixed seat is longitudinally equipped with several electromagnetic seat and positioning convex point seat, the upper of electromagnetic seat and positioning convex point seat is transversely equipped with steel strip, directly transport flat steaming base to turnover seat by the form of transverse conveying, again by positioning convex point seat to carry out positioning separation to the steel strip above flat steaming base, ensure the positioning accuracy of gap between whole steel strip, prevent the occurrence of deviation, and electromagnetic seat can assist steel strip to be clamped and fixed, finally receive the block above side plate from fixed removal seat again, turn over, to realize the effect of no hoisting feeding, ensure that flat steaming base and steel strip above turnover seat are stable when feeding again, prevent deviation to steel strip when turning over, improve overall turnover efficiency.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of concrete turning, and particularly relates to an intelligent turning system for a split bottom plate. BACKGROUND

[0002] The full name of the aerated concrete plate is autoclaved aerated concrete plate, which is made of siliceous material and calcareous material as the main raw material, aluminum powder as the gas material, and steel mesh treated by corrosion as the reinforcing material. The aerated concrete plate is made by adding water to the raw material to form a slurry, adding powdered lime, appropriate amount of cement, gypsum and foaming agent, pouring into the mold frame after stirring, cutting into various specifications of building blocks or plates after static foaming and curing, and sending into the autoclave by the autoclave car for curing under high temperature saturated steam.

[0003] In the processing process of the aerated concrete plate, the raw material is first ground into slurry by adding water, powdered lime, appropriate amount of cement, gypsum and foaming agent, and then poured into the mold frame after stirring. After static foaming and curing, it is cut into various specifications of building blocks or plates, and sent into the autoclave by the autoclave car. Under the curing of high temperature saturated steam, the aerated concrete product with multiple pores and light weight is formed.

[0004] Before entering the high-temperature autoclave for curing, in order to facilitate cutting and overall assembly and curing, the building blocks need to be separated from the side plate and turned over by 90 degrees, and placed on the flat curing bottom plate. Steel bars are also needed to be placed between the flat curing bottom plate and the building blocks to facilitate the cutting of the building blocks. Therefore, a special turning device is needed to turn over the heavy building blocks smoothly, so that they can be alternated.

[0005] Generally, the turning device needs to use hoisting to hoist the completed building blocks and side plates to the ground turning assembly, then turn over, and then hoist and remove after turning over. Before that, the flat curing bottom plate also needs to be hoisted to the ground turning assembly by hoisting to prepare for turning over to receive the building blocks. This form greatly increases the operation complexity of hoisting, increases the hoisting frequency, and increases the probability of hoisting risk. In addition, the placement of the flat curing bottom plate by hoisting is also prone to deviation, which causes the ground turning mechanism to deviate during turning over, resulting in the building blocks after turning over cannot be accurately placed on the flat curing bottom plate, and the steel bars on the surface of the flat curing bottom plate are also prone to deviation due to hoisting swing. Moreover, the steel bars are placed on the surface of the flat curing bottom plate by separation and clamping for cutting purpose, so when the flat curing bottom plate is prepared for turning over to receive the building blocks, it is also prone to deviation due to the operation vibration and gravity of the ground turning assembly, which affects the subsequent operation. SUMMARY

[0006] In order to solve the above problems, an intelligent turnover system for the split floor is provided, which comprises a fixed moving-in seat and a turnover seat, the rear side of the fixed moving-in seat is connected with the turnover seat through a rotating shaft, the upper surface of the turnover seat is provided with a horizontal conveying chain machine, the right end of the conveying chain machine is provided with a limiting block, the outer sides of the front and rear sides of the conveying chain machine are provided with flat steam floor clamping members, the upper side of the conveying chain machine is provided with a flat steam floor in a horizontal conveying and moving manner, the inner side of the conveying chain machine is provided with a magnetic attraction positioning fixed seat, the flat steam floor is a horizontal rectangular frame, the inner side of the flat steam floor is provided with a plurality of steel bar placing seats in a longitudinal spaced manner, the upper side of the steel bar placing seat is provided with a plurality of steel bars in a horizontal manner, the vertical movement of the magnetic attraction positioning fixed seat is provided on the inner side of the conveying chain machine, the upper surface of the magnetic attraction positioning fixed seat is provided with a plurality of electromagnetic seats and positioning convex point seats in a longitudinal manner, the upper side of the electromagnetic seats and the positioning convex point seats is provided with a steel bar, the electromagnetic seats and the positioning convex point seats are arranged in the gaps between the steel bar placing seats, the surface of the positioning convex point seat is provided with a plurality of convex points, the positions of the convex points of the positioning convex point seat are the same as the intervals between the steel bars, the upper surface of the fixed moving-in seat is provided with a side plate in a longitudinal moving manner, the front side bottom of the side plate is provided with a side plate locking member, the rear side edge of the side plate and the front edge of the turned flat steam floor are provided with a turnover lap joint gap, the bottom surface of the side plate is provided on the top surface of the fixed moving-in seat in a longitudinal front and rear moving manner through a conveyor and an introduction transmission machine, the flat steam floor is directly transported to the turnover seat in a horizontal conveying manner, the steel bars above the flat steam floor are positioned and separated through the positioning convex point seat, the positioning accuracy of the gaps between the whole steel bars is ensured to prevent deviation, the electromagnetic seats can assist the clamping and fixing of the steel bars to ensure the stability during turnover and play an auxiliary clamping role, finally, the blocks above the side plate are received from the fixed moving-in seat and are turned over, thereby realizing the effect of no hoisting and feeding, ensuring the stability of the flat steam floor and the steel bars above the turnover seat during feeding, preventing the steel bars from deviating during turnover, and improving the overall turnover efficiency.

[0007] The fixed moving-in seat is a horizontal fixed base, the rear side of the fixed moving-in seat is connected with the front side of the turnover seat through a rotating shaft, the bottom of the two ends of the fixed moving-in seat is connected with the front side bottom of the turnover seat through a cylinder for pushing and turning, the front side bottom of the turnover seat is provided with a turnover ear in an extending manner, the turnover seat is connected with the cylinder at the bottom of the fixed moving-in seat through the turnover ear, the cylinder pushes the turnover seat forward to turn over by 90 degrees, the blocks are moved into the contact with the turnover seat in a one-side moving and one-side turning manner, and are turned over from the side plate, and the fixed moving-in seat is moved in and then turned over, thereby enabling the row hoist to have sufficient clamping space, preventing the interference of the turnover seat, and ensuring the stability of the automatic hoisting.

[0008] The conveying chain machine is a parallel double-chain circulating conveyor, the right end rear side of the conveying chain machine is provided with a main motor, the right end bottom of the conveying chain machine is connected with the chains on both sides through a transmission shaft and synchronous transmission, the front and rear sides of the upper surface of the right end of the conveying chain machine are provided with limiting stops, the limiting stops are electrically controlled opening and closing limiting stops, limiting rollers are arranged between the chains on the front and rear sides of the conveying chain machine, the conveying chain machine moves and clamps the limiting type flat steaming bottom plate, the flat steaming bottom plate can be directly moved from the outside to the inside of the ground turning assembly transversely through the conveying chain machine, ready for turning over, so that hoisting through the row of hangers is not needed, and the longitudinal position of the flat steaming bottom plate can be limited, and the limiting stop can fix the transverse position of the flat steaming bottom plate in the conveying and turning seat, so that the overall limiting of the flat steaming bottom plate is facilitated, and the stability of turning over is ensured.

[0009] The magnetic positioning and fixing seat is a translational overall support mechanism, the magnetic positioning and fixing seat is connected with the inner side of the conveying chain machine through a gear and a rack, the four corners of the magnetic positioning and fixing seat are connected with the inner side of the conveying chain machine through guide columns, the upper surface of the magnetic positioning and fixing seat is protrusively provided with a plurality of electromagnetic seats and positioning convex point seats, the electromagnetic seats and the positioning convex point seats vertically move up and down through the magnetic positioning and fixing seat, the electromagnetic seats and the positioning convex point seats can be driven to move up and down through the magnetic positioning and fixing seat arranged on the inner side of the chain machine, so that the steel bars above the flat steaming bottom plate can be spaced and positioned through the positioning convex point seats, and the steel bars can be assisted and adsorbed through the electromagnetic seats, so that overturning in the process of turning over is prevented, and the steel bars are prevented from being offset.

[0010] The flat steaming bottom plate clamping piece is a rotating opening and closing type single-side clamping piece, the flat steaming bottom plate clamping pieces are symmetrically arranged on the middle parts of the front and rear sides of the conveying chain machine, the inner sides of the flat steaming bottom plate clamping pieces on the front and rear sides are rotatably and foldably connected with the front and rear sides of the flat steaming bottom plate, the flat steaming bottom plate is clamped and fixed through the flat steaming bottom plate clamping pieces on both sides, so that the flat steaming bottom plate can be stably packaged in the process of turning over, and after the turning over is completed and the building blocks are received, the flat steaming bottom plate can continue to be stably and accurately retained on the conveying chain machine, and then is moved out in translation, so that the automatic discharging effect of the flat steaming bottom plate is realized.

[0011] The top surface of the fixed moving-in seat is provided with a horizontal translation conveyor at both left and right ends, the front end of the fixed moving-in seat is horizontally connected with the translation conveyor drive through an introduction transmission machine, the top surface of the translation conveyor is connected with the side plate in linkage, the inside rear of the fixed moving-in seat is provided with a side plate locking piece, the side plate locking piece is tightly connected with the front bottom of the side plate, the rear side of the outside of both left and right ends of the fixed moving-in seat is provided with a push-down claw hook, the push-down claw hook is connected with the side plate locking piece in linkage, the moving-in seat is moved to move the block, the block is translated inward by a distance, so that the crane can be conveniently moved out, the interference of the rear overturning seat before completely falling can be effectively prevented, the overall operation efficiency is increased, and the push-down claw hook and the side plate locking piece can not only limit and lock the side plate, but also can assist in pushing down the block from the bottom, so that the overturning and dumping are facilitated.

[0012] Advantages:

[0013] The horizontal conveying form is directly used to convey the flat steaming bottom plate to the overturning seat, the positioning convex point seat is used to position and separate the steel bars above the flat steaming bottom plate, the positioning accuracy of the gap between the whole steel bars is guaranteed, the deviation is prevented, the electromagnetic seat can assist in clamping and fixing the steel bars, the stability during overturning is guaranteed, the auxiliary clamping effect is achieved, the block above the side plate is received from the fixed moving-in seat, and then overturning is performed, so that the no-crane loading effect is realized, the stability of the flat steaming bottom plate and the steel bars above the overturning seat during feeding is guaranteed, the deviation of the steel bars during overturning is prevented, and the overall overturning efficiency is improved.

[0014] In the form of moving in on one side and overturning on one side, the block can be moved into contact with the overturning seat, the block is turned over from the side plate, the fixed moving-in seat is moved in and then overturned, so that the crane has sufficient clamping space, the overturning seat is prevented from being interfered, and the stability of the automatic crane is guaranteed.

[0015] The conveying chain machine can horizontally move the flat steaming bottom plate from the outside to the inside of the ground overturning assembly, so that the crane is not needed for hoisting, and the position of the flat steaming bottom plate in the longitudinal direction is limited, the limiting block can fix the position of the flat steaming bottom plate in the horizontal direction when the flat steaming bottom plate is conveyed into the overturning seat, so that the overall limiting of the flat steaming bottom plate is facilitated, and the stability of overturning is guaranteed.

[0016] The magnetic attraction positioning and fixing seat arranged in the inside of the chain machine can drive the electromagnetic seat and the positioning convex point seat to move up and down, so that the steel bars above the flat steaming bottom plate can be positioned and spaced by the positioning convex point seat, and the steel bars can be assisted and adsorbed by the electromagnetic seat to prevent overturning during overturning and cause the steel bars to deviate.

[0017] The flat steaming bottom plate is clamped and fixed through the two-side flat steaming bottom plate clamping piece, so that the flat steaming bottom plate is stable during the overturning process, and after the overturning is completed, the flat steaming bottom plate can continue to be accurately retained on the conveying chain machine, and then is moved out in a horizontal manner, so that the automatic discharging effect of the flat steaming bottom plate is realized.

[0018] The block is moved by the movable fixed moving-in seat, and the block is translated inward by a distance, so that the block can be moved out by the crane, the interference of the rear overturning seat before falling completely is prevented, the overall operation efficiency is improved, and the side plate locking piece and the push-down claw hook can not only limit and lock the side plate, but also assist in pushing down the block from the bottom, so that the overturning and dumping are facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a deployment schematic view of an intelligent overturning system for a split bottom plate.

[0020] Figure 2 It is a overturning schematic view of an intelligent overturning system for a split bottom plate.

[0021] Figure 3 It is a top view schematic view of an intelligent overturning system for a split bottom plate.

[0022] Figure 4 It is a receiving overturning side view of an intelligent overturning system for a split bottom plate.

[0023] In the figure; 1, overturning seat, 2, conveying chain machine, 3, limit stop, 4, magnetic attraction positioning fixed seat, 5, flat steaming bottom plate, 6, electromagnetic seat, 7, positioning convex point seat, 8, flat steaming bottom plate clamping piece, 9, rotating shaft, 10, fixed moving-in seat, 11, side plate, 12, side plate locking piece, 13, introduction transmission machine, 14, steel bar. DETAILED DESCRIPTION

[0024] In order to deepen the understanding of the present application, the present application will be further described in combination with examples and drawings, which are only used to explain the present application and do not constitute a limitation on the protection scope of the present application.

[0025] Overturning seat 1, conveying chain machine 2, limit stop 3, magnetic attraction positioning fixed seat 4, flat steaming bottom plate 5, electromagnetic seat 6, positioning convex point seat 7, flat steaming bottom plate clamping piece 8, rotating shaft 9, fixed moving-in seat 10, side plate 11, side plate locking piece 12, introduction transmission machine 13, steel bar 14.

[0026] As shown in Figure 1 , 2 , 3;

[0027] The utility model relates to a kind of intelligent turnover system for split floor, and ground turnover assembly includes fixedly moving into seat 10, and turnover seat 1, the rear side of fixedly moving into seat 10 is connected with turnover seat 1 by rotating shaft 9, the upper surface of the described turnover seat 1 is laterally equipped with conveying chain machine 2, the right end of the described conveying chain machine 2 is equipped with limit stop 3, the outside of the front and rear sides of conveying chain machine 2 is each equipped with flat steaming floor clamping piece 8, the upper side of conveying chain machine 2 is laterally equipped with flat steaming floor 5, the inside of conveying chain machine 2 is equipped with magnetic attraction positioning fixed seat 4, the described flat steaming floor 5 is rectangular frame laterally, the inside of flat steaming floor 5 is longitudinally equipped with several steel strip 14 placement seat, the upper side of the described steel strip 14 placement seat is laterally equipped with several steel strip 14, the inside of conveying chain machine 2 is vertically moved and is equipped with the magnetic attraction positioning fixed seat 4, the upper surface of magnetic attraction positioning fixed seat 4 is longitudinally equipped with several electromagnetic seat 6 and positioning convex point seat 7, the upper side of the described electromagnetic seat 6 and positioning convex point seat 7 is laterally equipped with steel strip 14, electromagnetic seat 6 and positioning convex point seat 7 are equipped between the gap of several steel strip 14 placement seat, the surface of the described positioning convex point seat 7 is equipped with several convex points, the spacing between the convex point position of positioning convex point seat 7 and steel strip 14 is same, the upper surface of the described fixedly moving into seat 10 is longitudinally moved and is equipped with side plate 11, the front side bottom of the described side plate 11 is equipped with side plate locking piece 12, the front edge between the rear side edge of side plate 11 and the flat steaming floor 5 after turnover is equipped with turnover lap joint gap, the bottom surface of side plate 11 is longitudinally moved and is equipped on the top surface of fixedly moving into seat 10 by conveying machine and lead-in transmission machine 13,

[0028] The fixed moving-in seat 10 is a horizontal fixed base, the rear side of the fixed moving-in seat 10 is connected with the front side of the turnover seat 1 through a rotating shaft 9, the bottom of the two ends of the fixed moving-in seat 10 is connected with the front bottom of the turnover seat 1 through a pneumatic cylinder, the front bottom of the turnover seat 1 is provided with a turnover lug in an extending manner, the turnover seat 1 is connected with the pneumatic cylinder at the bottom of the fixed moving-in seat 10 through the turnover lug, the pneumatic cylinder pushes the turnover seat 1 forward to make the turnover seat 1 turn over 90 degrees, the conveying chain machine 2 is a parallel double-chain circulating conveyor, the right end rear side of the conveying chain machine 2 is provided with a main motor, the right end bottom of the conveying chain machine 2 is connected with the two sides of the chain through a transmission shaft to realize synchronous transmission, the right end upper surface of the conveying chain machine 2 is provided with a limiting stop 3 on the front and rear sides, the limiting stop 3 is an electric control opening and closing limiting stop 3, the limiting rollers are arranged between the chains on the front and rear sides of the conveying chain machine 2, the conveying chain machine 2 is provided with a flat steaming bottom plate 5 through the limiting rollers, the magnetic attraction positioning fixed seat 4 is a whole supporting mechanism, the magnetic attraction positioning fixed seat 4 is connected with the inner side of the conveying chain machine 2 through a gear and a rack, the magnetic attraction positioning fixed seat 4 is connected with the inner side of the conveying chain machine 2 through guide columns at four corners, the magnetic attraction positioning fixed seat 4 is provided with a plurality of electromagnetic seats 6 and positioning convex point seats 7 on the upper surface in a protruding manner, the electromagnetic seats 6 and the positioning convex point seats 7 are vertically moved up and down through the magnetic attraction positioning fixed seat 4, the flat steaming bottom plate clamping piece 8 is a single-side clamping piece in a rotating opening and closing manner, the flat steaming bottom plate clamping piece 8 is arranged on the middle part of the front and rear sides of the conveying chain machine 2 in a mutually symmetrical manner, the inner side of the flat steaming bottom plate clamping piece 8 on the front and rear sides is connected with the front and rear sides of the flat steaming bottom plate 5 in a rotating and folding manner, the top surface of the fixed moving-in seat 10 is provided with a flat conveying machine at the left and right ends, the front end of the fixed moving-in seat 10 is connected with the flat conveying machine through an introduction transmission machine 13 in a driving manner, the top surface of the flat conveying machine is connected with a side plate 11 in a linkage manner, the inner side of the fixed moving-in seat 10 is provided with a side plate locking piece 12, the side plate locking piece 12 is connected with the front bottom of the side plate 11 in a pressing and locking manner, the rear side of the left and right ends of the fixed moving-in seat 10 is provided with a push-down claw hook, the push-down claw hook is connected with the side plate locking piece 12 in a linkage manner.

[0029] Embodiment example

[0030] Before use, the flat steaming bottom plate 5 is conveyed into the turnover seat 1 through the conveying chain machine 2, then the magnetic attraction positioning fixed seat 4 drives the electromagnetic seats 6 and the positioning convex point seats 7 to rise, the positioning convex point seats 7 position the steel bars 14 through the gaps between the surface convex points, the steel bars 14 are fixed again through the electromagnetic seats 6, the flat steaming bottom plate 5 is clamped and fixed through the flat steaming bottom plate clamping piece 8, so as to complete the fixing of the whole receiving bottom plate, finally the turnover seat 1 is driven by the pneumatic cylinder to turn over upward along the rotating shaft 9 to prepare to receive the blocks.

[0031] In use, first, the block with the side plate 11 at the bottom is transported and placed on the fixed moving-in seat 10 by the row crane, and is transported into the turnover seat 1 by the introduction transmission machine 13, so that the block is in contact with the surface of the flat steaming bottom plate 5 and the steel bar 14, then the side plate 11 is locked by the side plate locking piece 12, and the block is pushed down from the bottom by the push-down claw hook, and the turnover seat 1 is turned over backward at the same time, so that the turnover of the block is completed, and the block is placed above the flat steaming bottom plate 5 and the steel bar 14, then the limiting block 3 is opened, and the block is transported to the subsequent step by the conveying chain machine 2.

[0032] The above only describes the preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An intelligent turnover system for a split floor, the ground turnover assembly comprising a fixed moving-in seat and a turnover seat, the rear side of the fixed moving-in seat being rotatably connected to the turnover seat through a rotating shaft, characterized in that, The upper surface of the turnover seat is provided with a conveying chain machine in a transverse manner, the right end of the conveying chain machine is provided with a limiting block, the outer part of the front and back of the conveying chain machine is provided with a flat steaming bottom clamping piece, the upper part of the conveying chain machine is provided with a flat steaming bottom in a transverse conveying and moving manner, the inner side of the conveying chain machine is provided with a magnetic attraction positioning fixing base, the flat steaming bottom is a transverse rectangular frame, the inner side of the flat steaming bottom is provided with a plurality of steel bar placing seats in a longitudinal and interval manner, the upper part of the steel bar placing seat is provided with a plurality of steel bars in a transverse manner, the magnetic attraction positioning fixing base is vertically and movably arranged on the inner side of the conveying chain machine, the upper surface of the magnetic attraction positioning fixing base is provided with a plurality of electromagnetic seats and positioning convex point seats in a longitudinal manner, the upper part of the electromagnetic seats and the positioning convex point seats is provided with a steel bar in a transverse manner, the electromagnetic seats and the positioning convex point seats are arranged between the gaps of the steel bar placing seats, the surface of the positioning convex point seat is provided with a plurality of convex points, the positions of the convex points of the positioning convex point seat are the same as the intervals between the steel bars, the upper surface of the fixed moving-in seat is provided with a side plate in a longitudinal moving manner, the front bottom of the side plate is provided with a side plate locking piece, the rear side edge of the side plate and the front edge of the flat steaming bottom after turning are provided with a turning lap joint gap, the bottom surface of the side plate is movably arranged on the top surface of the fixed moving-in seat through a conveying machine and an introduction transmission machine in a longitudinal and back-and-forth manner. The magnetic attraction positioning fixing base is a translational integral support mechanism, the magnetic attraction positioning fixing base is connected with the inner side of the conveying chain machine through a gear and a rack, the magnetic attraction positioning fixing base is connected with the inner side of the conveying chain machine through guide columns at four corners in a guiding manner, the upper surface of the magnetic attraction positioning fixing base is provided with a plurality of electromagnetic seats and positioning convex point seats in a protruding manner, the electromagnetic seats and the positioning convex point seats are vertically and vertically movable through the magnetic attraction positioning fixing base. The top surface of the fixed moving-in seat is provided with a flat conveying machine at both ends, the front end of the fixed moving-in seat is connected with the flat conveying machine in a driving manner through an introduction transmission machine in a transverse manner, the top surface of the flat conveying machine is connected with the side plate in a linkage manner, the inner side of the fixed moving-in seat is provided with a side plate locking piece at the back, the side plate locking piece is connected with the front bottom of the side plate in a locking and pressing manner, the rear side of the outer part of both ends of the fixed moving-in seat is provided with a push-down claw hook, the push-down claw hook is connected with the side plate locking piece in a linkage and linkage manner.

2. An intelligent flip system for a split floor as claimed in claim 1, wherein, The fixed moving-in seat is a horizontal fixed base, the rear side of the fixed moving-in seat is rotatably connected with the front side of the turnover seat through a rotating shaft, the bottom of both ends of the fixed moving-in seat is connected with the front bottom of the turnover seat through a cylinder in a pushing and turning manner, the front bottom of the front side of the turnover seat is provided with a turnover ear in an extending manner, the turnover ear is connected with the cylinder at the bottom of the fixed moving-in seat, the cylinder pushes the turnover seat forward in a pushing manner, and the turnover seat is turned by 90 degrees.

3. An intelligent flip system for a split floor as claimed in claim 1, wherein, The conveying chain machine is a parallel double-chain circulating conveyor, the right end rear side of the conveying chain machine is provided with a main motor, the right end bottom of the conveying chain machine is connected with the chains on both sides through a transmission shaft for mutual synchronous transmission, the front and rear sides of the upper surface of the right end of the conveying chain machine are both provided with limit stops, the limit stops are electrically controlled open-close limit stops, limit rollers are arranged between the chains on the front and rear sides of the conveying chain machine, and the conveying chain machine is provided with flat steaming bottom plates through the limit rollers.

4. The smart flip system for a split floor according to claim 1, wherein, The flat steaming bottom plate clamping pieces are rotating open-close single-side clamping pieces, the flat steaming bottom plate clamping pieces are symmetrically arranged at the middle portions of the front and rear sides of the conveying chain machine, and the inner sides of the flat steaming bottom plate clamping pieces on the front and rear sides are rotatably folded and connected with the front and rear sides of the flat steaming bottom plates.

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