CN114769522A

CN114769522A - Cast tube bellmouth psammitolite does not have tray transmission, storage and sends production line

Info

Publication number: CN114769522A
Application number: CN202210484169.3A
Authority: CN
Inventors: 冯新林; 仲维贺; 林建伟; 冯振亮
Original assignee: Jinan Lin Qing Casting Technology Co ltd
Current assignee: Jinan Lin Qing Casting Technology Co ltd
Priority date: 2022-05-05
Filing date: 2022-05-05
Publication date: 2022-07-22

Abstract

A production line for tray-free transmission, storage and sending of cast tube bellmouth sand cores comprises a core taking truss robot, a drying chain plate conveyor, a warehousing truss robot, a storage frame, a warehouse-out truss robot, a sending lifting platform, a core-sending robot, a sand core receiving chain plate conveyor and a core-loading robot, wherein the core taking truss robot is installed between a core shooter and the drying chain plate conveyor, the chain plate conveyor penetrates through a drying furnace to enter a sand core inventory area, the warehousing truss robot and the warehouse-out truss robot are arranged in the sand core inventory area, the storage frame is arranged in the sand core inventory area, the sending lifting platform is arranged below a core-sending track, the core-sending track is connected with the sand core receiving chain plate conveyor, and the sand core receiving chain plate conveyor is arranged on one side of a cast tube machine and is connected with the core-loading robot. The production line adopts a tray-free transmission and storage mode, can fully improve the transfer efficiency, and can greatly reduce the power consumption and the sand core loss.

Description

Cast tube bellmouth psammitolite does not have tray transmission, storage and sends production line

Technical Field

The invention relates to a sand core turnover processing production line matched with a core shooter and a centrifugal pipe casting machine and used for automatically coring, coating, stacking, transmitting, drying, storing and sending a casting pipe bell mouth sand core, belonging to the technical field of casting pipe production.

Background

The centrifugal casting nodular cast iron pipe has large variety and specification span, and the nominal diameter of the cast pipe relates to DN80-1200/DN 1100-3000. The sand core demand is continuously increased along with the continuous improvement of the production efficiency and the continuous expansion of the production scale of a centrifugal pipe casting machine, most pipe casting production lines are provided with triethylamine method cold box core shooters, and the core manufacturing production efficiency exceeds the efficiency of the centrifugal pipe casting machine. However, the connection between the core shooter and the centrifugal tube casting machine seriously restricts the improvement of the production efficiency of the cast tube, and has great adverse effects on the quality and the operation cost of the cast tube.

The current sand core production process flow is as follows:

1. preparing materials into corresponding bins (sand, two-component resin, triethylamine, coating and the like);

2. preparing core sand by a sand mixer;

3. core shooting by a core shooter;

4. the triethylamine gas generator blows amine into the core box, and the mold is opened after the sand core is hardened;

the sand core is required to be completed after being injected, hardened and opened: the process of coring, coating, stacking, drying, warehousing and storage, delivering to a core loading position of a pipe casting machine and the like, the turnover power consumption of the sand core in the processes is far more than the power consumption of the sand core production, and more than 10% of sand core damage and scrap are generated.

At present, the core taking, coating, stacking, drying, warehousing and ex-warehouse sending from a core box of a core shooter all adopt a tray or core frame storage and traveling crane hoisting transmission mode, the mode occupies a large number of core storage trays and core storage frames, in the process of turnover, the turnover of the trays and the core frames occupies more than half power consumption, and meanwhile, the manual framing still causes the loss of a certain proportion of sand cores to influence the precision of cast tubes.

Disclosure of Invention

Aiming at the defects of the sand core turnover technical equipment in the prior cast tube production, the invention provides a cast tube bellmouth sand core tray-free transmission, storage and sending production line which can fully improve the transfer efficiency and greatly reduce the power consumption and the sand core loss.

The invention relates to a tray-free transmission, storage and sending production line of a cast tube bell mouth sand core, which adopts the following technical scheme:

the production line comprises a core taking truss robot, a drying chain plate conveyor, a warehousing truss robot, a storage rack, a warehouse-out truss robot, a sending lifting platform, a core sending robot, a sand core receiving chain plate conveyor and a core loading robot; the core taking truss robot is installed between a core shooter and a drying chain plate conveyor, the drying chain plate conveyor penetrates through a drying furnace to enter a sand core inventory area, the warehousing truss robot and the ex-warehouse truss robot are arranged in the sand core inventory area, a storage frame is arranged in the sand core inventory area, the warehousing truss robot is connected with the drying chain plate conveyor, the ex-warehouse truss robot is connected with the core conveying robot, the core conveying robot is installed on a core conveying rail to run, a conveying lifting platform is arranged below the core conveying rail, the core conveying rail is connected with the sand core bearing chain plate conveyor, the sand core bearing chain plate conveyor is arranged on one side of a casting pipe machine and is connected with the core loading robot. The core loading robot and the sand core receiving chain plate conveyor can be arranged on a working platform of the pipe casting machine.

Get grabbing, going up and down, lateral shifting, longitudinal movement and tumbling that core truss robot realized the psammitolite, the power end of getting core truss robot is provided with elevating system and snatchs the mechanism, elevating system includes elevator motor, lead screw, removes the seat and snatchs the seat, removes and is provided with the guide bar on the seat, the guide bar suit is in being fixed in the uide bushing on removing the seat, guide bar upper portion is connected with driving motor, the guide bar lower part with snatch the mechanism and be connected, snatch the mechanism including snatching the seat and connecting the claw of snatching on the seat, remove and be provided with the nut with screw connection on the seat, the lead screw is connected with elevator motor's pivot. The grabbing claw is connected to the grabbing seat through a swing shaft, the swing shaft is connected with a swing mechanism, the swing mechanism can directly adopt a motor, and the motor drives the swing shaft to deflect, so that sundries such as redundant sand grains and the like are shaken off. The grabbing claw is provided with an air bag which stretches into the inner cavity of the sand core, and then the air bag is inflated to expand, so that the sand core is tightly supported, and grabbing is realized.

The power end of warehouse entry truss robot is provided with elevating system and gets the core fork, and elevating system connects on removing the frame, gets core fork fixed connection on elevating system, elevating system includes crane and hoist engine, is provided with lifting guide on the crane, is provided with the elevator slide on the lifting guide, and the elevator slide is connected with removing the frame, and the hoist engine is installed on removing the frame, and its haulage rope is connected with the crane, it installs on the crane to get the core fork. The coring fork is formed by closely arranging single forks, the interval between the single forks is consistent with the interval distance of a chain plate in a chain plate conveyor, and the width of the single fork is smaller than the interval of the chain plate. The movable frame is provided with a suspension pressing plate (connected through a lifting rope). The suspension pressing plate is arranged in a protection cage, and the protection cage is arranged on the moving frame.

The storage rack is formed by welding densely-arranged grids on the bottom support.

The single forks in the coring forks in the production line, the grids in the storage rack and the chain plates in the chain plate conveyors (the storage core chain plate conveyor and the sand core receiving chain plate conveyor) are of a dense-arrangement structure, the single forks and the intervals thereof, the grids and the intervals thereof, and the chain plates and the intervals thereof are matched with each other, and the single forks of the coring forks can be arranged between the grids in the storage rack and between the chain plates of the chain plate conveyors.

The whole production line is controlled by a PLC controller. The core taking truss robot finishes four processes of core taking, dip coating, stacking and waste core placing, the core taking truss robot grabs a core shot by the core shooting machine after the core shooting machine is opened, manual detection is carried out, a flawless core is conveyed to a coating pool, the core grabbed on the core taking truss robot is coated with a coating in a dip coating mode, and the core is stacked on a drying chain plate conveyor after the dip coating is finished. The stacked sand cores run on a drying chain plate conveyor and pass through a drying furnace for drying. And the warehousing truss robot forks the dried stacking sand cores on the drying chain plate conveyor and then stores the forking sand cores on a storage rack on the ground of the sand core repository, and memorizes the varieties, the time and the positions. The sand core delivery truss robot takes out the sand core with the required specification from the sand core storage warehouse, places the sand core on the delivery lifting platform to lift, is grabbed by the core delivery robot and then places the sand core on the sand core receiving chain plate conveyor, and the sand core receiving chain plate conveyor conveys the sand core to the core taking position of the core loading robot. And the core loading robot grabs the sand core and sends the sand core into the pipe casting machine.

The production line is arranged between the core shooter and the pipe casting machine, is used for taking out, coating, stacking, drying, warehousing, storing and ex-warehouse sending of the sand core after the core shooter is shot into a die opening, adopts a tray-free transmission and storage mode, can fully improve the transfer efficiency, and can greatly reduce the power consumption and the sand core loss. Through the organic combination of the sand core transmission chain plate machine, the storage grid bed and the turnover carrying fork, the tray-free batch stack transmission storage and turnover of sand cores of various specifications are realized.

Drawings

FIG. 1 is a schematic view of the overall structure of the production line of the present invention.

Fig. 2 is a schematic structural view of the coring truss robot of the present invention.

Fig. 3 is a schematic structural view of the warehousing truss robot of the invention.

Fig. 4 is a left side view of fig. 3.

Fig. 5 is a schematic structural view of the storage shelf of the present invention, wherein (a) is a front view, wherein (b) is a top view, and wherein (c) is a left side view.

Wherein: 1. the method comprises the following steps of (1) taking a core truss robot, 2) a sand core, 3. a strut, 4. a drying chain plate conveyor, 5. a drying furnace, 6. a warehousing truss robot, 7. a storage rack, 8. a warehouse-out truss robot, 9. a sending lifting platform, 10. a core sending robot, 11. a sand core receiving chain plate conveyor, 12. a core loading robot, 13. a core sending track, 14. a pipe casting machine working platform, and 15. a warehouse-in and warehouse-out truss;

101. the device comprises a lifting motor, 102 lead screws, 103 guide rods, 104 nuts, 105 moving seats, 106 grabbing seats, 107 coring trusses, 108 left moving speed reducers, 109 right moving speed reducers, 110 synchronous belts, 111 upper connecting plates, 112 grabbing claws, 113 air bags and 114 oscillating shafts;

601. the lifting frame, 602, the lifting guide rail, 603, the winch, 604, the lifting seat, 605, the suspension pressing plate, 606, the protection cage, 607, the coring fork, 608, the moving frame, 609, the lifting wheel, 610, the traction rope, 611, the single fork, 612, the longitudinal moving wheel, 613, the longitudinal driving shaft, 614, the longitudinal rail;

701. bottom brace, 702, grid.

Detailed Description

The invention aims to provide a set of production line for transmitting, storing and sending batch cast pipe bellmouth sand cores, which is arranged between a core shooter and a cast pipe machine and used for taking out, coating, stacking, drying, warehousing, storing and ex-warehouse sending of the sand cores after the core shooter is shot into a die opening.

As shown in figure 1, the production line for the tray-free conveying, storing and sending of the cast tube bellmouth sand core comprises a core truss robot 1, a drying chain plate conveyor 4, a drying furnace 5, a warehousing truss robot 6, a storage rack 7, a warehousing truss robot 8, a sending lifting platform 9, a core sending robot 10, a sand core receiving chain plate conveyor 11 and a core loading robot 12. The core truss robot 1 is provided on one side of the core shooter and runs on a core truss 107 (see fig. 2), and the core truss 107 is erected on the support column 3. The coring truss 107 is arranged between the core shooter and the drying chain plate conveyor 4, the drying chain plate conveyor 4 penetrates through the drying furnace 5, and the feed end and the discharge end of the drying chain plate conveyor are respectively arranged below the tail section of the coring truss 107 and the head section of the warehouse-in/warehouse-out truss 15. The warehousing truss robot 6 and the ex-warehousing truss robot 8 run on the warehousing truss 15, and the warehousing truss 15 is located in the sand core inventory area. The core-feeding robot 10 runs on an overhead core-feeding track 13, and the core-feeding track 13 can be installed on the inner side of a plant upright post. The core conveying track 13 is higher than the warehouse-in and warehouse-out truss 15, and the storage racks 7 are arranged in the sand core storage warehouse. The sending lifting platform 9 is arranged below the first section of the core conveying track 13, and the core conveying track 13 extends to the upper part of the working platform 14 of the pipe casting machine. The sand core receiving chain plate conveyor 11 and the core loading robot 12 are positioned at one side of the pipe casting machine and can be installed on a working platform 14 of the pipe casting machine.

The whole production line is controlled by a PLC controller, and the specific process is as follows.

The core taking truss robot 1 is arranged in front of the core shooter and is responsible for completing four processes of core taking, dip coating, stacking and waste core placing. The core taking truss robot 1 grabs a sand core 2 (see figure 1) shot after a core shooting machine opens a die, the core taking truss robot grabs the sand core after a core shooting machine core box opens the die, the sand core is manually detected, the sand core detected to be defective is placed in a waste core frame, the sand core detected to be non-defective is conveyed to a coating pond, the sand core 2 grabbed on the core taking truss robot 1 is coated with a coating in a dip mode, and the coated sand core is stacked on a drying chain plate conveyor 4 after the dip coating is completed. The drying chain plate conveyor 4 extends out of the inlet side and the outlet side of the drying furnace 5, and the stacked sand cores run on the chain plate conveyor 4 and pass through the drying furnace 5 for drying. And the warehousing truss robot 6 forks the dried stacked sand cores on the drying chain plate conveyor 4 and stores the forked sand cores on a storage rack 7 (a densely-arranged grid bed) on the ground of the sand core repository, and memorizes the variety, time and position.

After the delivery truss robot 8 obtains the instruction of the pipe casting machine, the sand cores with required specifications are automatically stacked and taken out from the stored sand cores in batches according to the required quantity, the sand cores are placed on the sending lifting platform 9, then the sending lifting platform 9 is lifted to the preset height, the core conveying robot 10 on the elevated track further lifts the stacked sand cores on the sending lifting platform 9 to the preset height and then moves the pipe casting machine which sends the instruction, after the transmission is in place and the slow stop is carried out, the core conveying robot 10 automatically descends, the sand cores are placed on a sand core receiving chain plate conveyor 11 on one side of the pipe casting machine, then the sand core receiving chain plate conveyor 11 is returned, and the sand core receiving chain plate conveyor 11 is started to convey the core taking sand cores to the position of the core loading robot 12. The core loading robot 12 grabs the sand core and sends the sand core into the tube casting machine.

The structure and function of each part will be described in detail below.

The coring truss robot 1 runs on the coring truss 107. The longitudinal moving mechanism and the transverse moving mechanism of the existing truss robot are adopted. The power end of the core truss robot 1 is provided with a lifting mechanism and a grabbing claw.

The lifting mechanism adopts a screw-nut pair structure and comprises a lifting motor 101, a screw 102, a moving seat 105 and a grabbing seat 10, wherein the moving seat 105 is connected on a core truss 107, two guide rods 103 are arranged on the moving seat 105, the guide rods 103 are sleeved in guide sleeves fixed on the moving seat 105 and can move in the guide sleeves, the upper parts of the two guide rods 103 are connected together through an upper connecting plate 111, the lower parts of the two guide rods 103 are connected with the grabbing seat 106, the grabbing seat 106 is provided with a grabbing claw 112, the grabbing claw 112 is connected on the grabbing seat 106 through a swinging shaft 114, the grabbing claw 112 is provided with an air bag 113, the swinging shaft 114 is connected with a swinging mechanism, and the swinging mechanism can directly adopt a motor. After the air bag 113 extends into the inner cavity of the sand core, the air bag is inflated to expand to tightly support the sand core, and the motor drives the swing shaft 114 to deflect and shake off impurities such as redundant sand grains. The movable base 105 is further provided with a nut 104, the upper end of the lead screw 102 is connected to a rotating shaft of the lifting motor 101 and is in threaded connection with the nut 104, and the lifting motor 101 is mounted on the upper connecting plate 111. The lifting motor 101 drives the lead screw 102 to rotate, the lead screw 102 is lifted through transmission of the lead screw 102 and the nut 104 (the nut 104 is fixed), the lifting motor 101 and the two guide rods 103 move together along with the lead screw 102, and the lead screw 102 is driven by the two guide rods 103 to lift.

The transverse moving mechanism of the truss robot refers to fig. 2, including moving the speed reducer 108 to the left, moving the speed reducer 109 and drive mechanism to the right, move the speed reducer 108 and move the speed reducer 109 to the left and install respectively at the both ends of coring truss 107, drive mechanism adopts synchronous belt drive, move the power take off end that speed reducer 108 and move the speed reducer 109 to the left and all install synchronous pulley 110, connect the synchronous belt between two synchronous pulley 110, remove seat 105 and be connected with the synchronous belt, move speed reducer 108 or move speed reducer 109 to the left and drive the synchronous belt operation, the synchronous belt drives and moves seat 105 and move on coring truss 107. The longitudinal movement mechanism will not be described in detail.

The drying chain plate conveyor 4 is a sealed chain plate conveyor in the prior art, and is used for conveying stacked sand cores on the drying chain plate conveyor forwards to a preset position in a stepping mode.

The drying furnace 5 is a tunnel type drying furnace in the prior art, and the chain scraper conveyor 4 passes through the tunnel type drying furnace and is conveyed forwards and dried at the same time.

The warehousing truss robot 6 adopts a longitudinal and transverse running mechanism of the existing truss robot, the warehousing truss robot 6 adopts the longitudinal and transverse running mechanism of the existing truss robot,

the lifting mechanism and the coring fork 607 are arranged at the power end, the structure is shown in fig. 3 and 4, the lifting mechanism is arranged on the moving frame 608, the coring fork 607 is fixedly connected to the lifting mechanism, and the lifting mechanism is connected to the moving frame 608.

The moving frame 608 moves on the in-out storage truss 15 by using a longitudinal and transverse moving mechanism of an existing truss robot, specifically, a longitudinal moving wheel 612 is mounted on a longitudinal driving shaft 613, the longitudinal moving wheel 612 is mounted on the longitudinal driving shaft 613, and the longitudinal driving shaft 613 is driven by a longitudinal driving motor (not shown in the figure) to move the moving frame 608 longitudinally on a longitudinal rail 614. The longitudinal rail 614 is provided with a transverse moving wheel by a transverse driving shaft, the transverse moving wheel is provided on the warehousing rail 15 (the transverse driving shaft and the transverse moving wheel are not shown), and the transverse driving shaft is driven by a transverse driving motor (not shown) to operate, so that the longitudinal rail 614 transversely moves on the warehousing rail 15. This enables longitudinal and lateral movement of the moving rack 608, i.e., the coring fork 607.

The lifting mechanism comprises a lifting frame 601 and a winch 603, the lifting frame 601 is in a door-shaped structure, a lifting guide rail 602 is arranged on the lifting frame 601, a lifting slider 604 is arranged on the lifting guide rail 602, and the lifting slider 604 is connected with a moving frame 608. The lifting frame 601 is provided with a lifting wheel 609, the winch 603 is arranged on the moving frame 608, the traction rope 610 of the winch 603 is connected with the lifting wheel 609, the winch 603 moves along with the moving frame 608, and the winch 603 drives the lifting frame 601 to lift through the traction rope 610.

The coring fork 607 is installed at the lower part of the crane 601. The coring forks 607 are of a close-packed structure and can adapt to the transportation of sand cores of all specifications DN80-1200, the spacing between single forks 611 in the coring forks 607 is consistent with the spacing distance of chain plates in a chain plate conveyor, the width of the single fork 611 is less than 10 mm of the spacing of the chain plates, the operation stop position degree of the coring forks 607 is less than 5 mm, and the coring forks can be ensured to be inserted into the spacing range of the chain plates.

A protective cage 606 positioned right above the coring fork 607 is arranged on the movable frame 608, and a suspension pressure plate 605 (connected to the top of the protective cage 606 through a lifting rope) is arranged in the protective cage 606.

The operation of the warehousing truss robot 6 is as follows.

The core taking fork 607 descends through the winch 603, the core taking fork 607 is inserted into the drying chain plate conveyor 4, a single fork 611 of the core taking fork 607 is positioned in a blank space between two chain plates in the chain plate conveyor 4, when stacked sand cores are conveyed above the core taking fork 607, the core taking fork 607 ascends through the winch 603, and the stacked sand cores are driven by the core taking fork 607 to ascend. After the stacked sand cores are lifted to a preset height, the suspended pressure plate 605 is lifted, the lifted stacked sand cores are completely positioned in the protection cage 606, the movable frame 608 moves to the position above the storage position on the warehousing track 15, then the coring fork 607 is lowered through the winch 603, and the stacked sand cores are placed on the storage frame 7. During the conveying process, the suspension pressing plate 605 is pressed on the stacking sand cores and in the protective cage 606, so that the stacking sand cores can be effectively prevented from being stacked in the transferring process.

After the sand cores are stacked on the storage rack 7, the coring fork 607 is driven by the winch 603 to lift by moving the moving rack 608 on the longitudinal rail 614 to enable the coring fork 7 to exit the storage rack 7, and then the sand cores move to the upper part of the drying chain plate conveyor 4 to enter the next operation.

The storage rack 7 is used for storing stacked sand cores, and has a structure shown in fig. 5, which is formed by welding closely-spaced grids 702 on a bottom brace 701, and is assembled by arranging C-shaped steel of a predetermined size, so that the sand cores are in a closely-spaced grid structure. The spacing and cross-sectional dimensions of the grating 702 match those of the coring fork 607.

The warehouse-out truss robot 8 runs on the warehouse-in and warehouse-out track 15 like the warehouse-in truss robot 6, and is used for taking the stacked sand cores stored on the storage rack 7 out for use, and casting pipes. The structure of the warehouse-out truss robot 8 is the same as that of the warehouse-in truss robot 6, and the process of taking out and stacking the sand cores is referred to the warehouse-in truss robot 6.

The sending lifting platform 9 is in the prior art, can adopt hydraulic pressure to send the lifting platform, is used for accepting the piling sand core that the warehouse-out truss robot 8 snatched, and rises the piling sand core to. When the conveying direction of the sand core needs to be changed, a lifting rotary platform can be adopted.

The core-feeding robot 10 runs on an overhead core-feeding track 13 and is used for conveying the stacked sand cores on the conveying lifting platform 9 to the sand core receiving chain plate conveyor 11. The power tail end of the core-feeding robot 10 is provided with a moving frame, a lifting mechanism and a core-taking fork which have the same structure as the warehousing truss robot 6, the core-feeding robot 10 only reciprocates on the core-feeding track 13, and the moving mode of the moving frame is the same as that of the existing truss robot.

The sand core receiving chain scraper conveyor 11 is installed on the working platform 14 of the tube casting machine, and is a sealed chain scraper conveyor in the prior art, and is used for receiving, stacking and placing sand cores sent by the core sending robot 10 and conveying the sand cores to the core loading robot 12.

The core loading robot 12 is a conventional and general grabbing robot, and is used for grabbing the sand core conveyed by the sand core receiving chain conveyor 11 and conveying the sand core to a core loading station of the pipe casting machine. The same gripping shoe 106 and gripping claw as in the core truss robot 1 are used.

The core-taking truss robot 1 grabs the sand cores 2 and finishes dip-coating, then the sand cores are stacked on a drying chain plate conveyor 4, the drying chain plate conveyor 4 is started to move the stacked sand cores into a drying furnace 4, and the dried sand cores are delivered out of the furnace and finished to be warehoused and stored by a warehousing truss robot 6. When the sand cores are used, the warehouse-out truss robot 8 goes out of the warehouse, the core-sending robot 10 sends batches of sand cores to the centrifugal pipe casting machine, and finally the sand cores are sent to a core-loading station of the pipe casting machine by the core-loading robot 12.

The production line is organically combined with the densely arranged coring forks 607, the chain conveyors (the storage core chain conveyor 4 and the sand core receiving chain conveyor 11) and the storage racks 7 with the densely arranged grid structure, and then matched with the warehousing truss robot 6, the ex-warehouse truss robot 8 and the core-conveying robot 10 with consistent structures, so that the production line can be suitable for batch stacking, transferring, storing and sending of sand cores with various specifications from small to large. The tray-free batch stack conveying, storing and transferring of sand cores of various specifications are realized.

Claims

1. The utility model provides a production line that cast tube bellmouth psammitolite does not have tray transmission, storage and dispatch which characterized by: the system comprises a core taking truss robot, a drying chain plate conveyor, a warehousing truss robot, a storage rack, a warehouse-out truss robot, a sending lifting platform, a core sending robot, a sand core receiving chain plate conveyor and a core loading robot; the core taking truss robot is installed between a core shooter and a drying chain plate conveyor, the drying chain plate conveyor penetrates through a drying furnace to enter a sand core inventory area, the warehousing truss robot and the ex-warehouse truss robot are arranged in the sand core inventory area, a storage frame is arranged in the sand core inventory area, the warehousing truss robot is connected with the drying chain plate conveyor, the ex-warehouse truss robot is connected with the core conveying robot, the core conveying robot is installed on a core conveying rail, a conveying lifting platform is arranged below the core conveying rail, the core conveying rail is connected with the sand core bearing chain plate conveyor, the sand core bearing chain plate conveyor is arranged on one side of the casting pipe machine and is connected with the core loading robot.

2. The cast tube bell core palletless transportation, storage and delivery production line as claimed in claim 1, wherein: the power end of getting core truss robot is provided with elevating system and snatchs the mechanism, elevating system includes elevator motor, lead screw, removes the seat and snatchs the seat, removes to be provided with the guide bar on the seat, and the guide bar suit is in being fixed in the uide bushing on removing the seat, and guide bar upper portion is connected with driving motor, and the guide bar lower part with snatch the mechanism and be connected, snatch the mechanism including snatching the seat and connecting the claw of snatching on the seat, remove be provided with on the seat with screw connection's nut, the lead screw is connected with elevator motor's pivot.

3. The cast tube bell core palletless transportation, storage and delivery production line as claimed in claim 2, characterized in that: the grabbing claw is connected to the grabbing seat through a swinging shaft, and the swinging shaft is connected with the swinging mechanism.

4. The cast tube bell core palletless transportation, storage and delivery production line as claimed in claim 2, characterized in that: an air bag is arranged on the grabbing claw.

5. The cast tube bell-mouth sand core tray-less transmission, storage and delivery production line as claimed in claim 1, wherein: the power take off end of the warehouse entry truss robot is provided with a lifting mechanism and a core taking fork, the lifting mechanism is connected to the movable frame, and the core taking fork is fixedly connected to the lifting mechanism.

6. The cast tube bell core palletless transportation, storage and delivery production line as claimed in claim 5, wherein: the lifting mechanism comprises a lifting frame and a winch, a lifting guide rail is arranged on the lifting frame, a lifting slide block is arranged on the lifting guide rail and connected with the moving frame, the winch is installed on the moving frame, a traction rope of the winch is connected with the lifting frame, and the core taking fork is installed on the lifting frame.

7. The cast tube bell core palletless transportation, storage and delivery production line as claimed in claim 5, wherein: the coring fork is formed by closely arranging single forks, the interval between the single forks is consistent with the interval distance of a chain plate in the chain plate conveyor, and the width of the single fork is smaller than the interval of the chain plate.

8. The cast tube bell core palletless transportation, storage and delivery production line as claimed in claim 5, wherein: and a suspension pressing plate is arranged on the movable frame.

9. The cast tube bell core palletless transportation, storage and delivery production line as claimed in claim 8, wherein: the suspension pressing plate is arranged in a protection cage, and the protection cage is arranged on the moving frame.

10. The cast tube bell core palletless transportation, storage and delivery production line as claimed in claim 1, wherein: the storage rack is formed by welding densely-arranged grids on the bottom support.