Stacking and conveying device for three-dimensional drying and curing oven

Abstract

A stacking and conveying device for a three-dimensional drying and curing oven relates to the technical field of drying and curing ovens and comprises an oven body, a tray conveying and clamping device B and a workpiece tray, an intermediate plate E is fixed on a bottom plate of the oven body, and a stacking left-right limiting lifting device A2, a transition section jacking device G and a jacking device A1 are mounted on the intermediate plate E respectively. The stacking and conveying device for the three-dimensional drying and curing furnace is compact in overall structure, small in size, easy to manufacture and convenient to operate, a heating furnace can be expanded in the width direction, the application range of the furnace in the market is greatly expanded, conveying of the stacking and conveying device is driven in a stepping mode, a material disc set of the stacking and conveying device can be clamped and limited by a fence, and the stacking and conveying efficiency is improved. Therefore, the tray set cannot slip during conveying, accuracy and reliability of the conveying position are guaranteed, it is guaranteed that subsequent tray set stacking work can be smoothly carried out, the tray lifting mechanism adopts a chain transmission driving mechanism, heat resistance, driving quality and working efficiency of the tray lifting mechanism are greatly improved, and the tray lifting mechanism is suitable for large-scale popularization and application. Compared with stacking, conveying, lifting and discharging operations in the prior art, the working reliability, the conveying position precision and the working efficiency of the stacking and conveying device are remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drying and curing furnaces, in particular to a stacking and conveying device for a three-dimensional drying and curing furnace. Background Art

[0002] In the prior art, patent publication number CN 208928516 U discloses an in-furnace palletizing device for a screen printing drying and curing furnace for visual panels. However, during practical application, it was found that the above-mentioned palletizing device for a drying and curing furnace has the following problems:

[0003] First, since the cylinder is generally not heat-resistant, in order to support the stacking tray, the supporting cylinder assembly must be installed on the outside of the furnace wall on both sides of the drying and curing furnace. This makes it impossible to expand the drying and curing furnace to the second row, third row, and other width directions, which limits the application of the drying and curing furnace;

[0004] Second, in actual applications, the lifting cylinder must be a double-stroke cylinder. Since there are supporting cylinder components on both sides, in actual applications, the lifting cylinder must be positioned in the first stroke so that the subsequent tray must first support the original tray assembly, so that the supporting cylinder components can be retracted. Then the lifting cylinder starts the second stroke to lift the subsequent tray together with the original tray assembly, so that the subsequent tray can be supported after being extended by the supporting cylinder components. Then the lifting cylinder retracts and waits for the arrival of the next tray to continue the stacking process. This design scheme greatly limits the efficiency of palletizing.

[0005] Third, during the implementation process, since the trays are mechanically fed into the furnace from outside the furnace and there is no limit device in front of the trays before stacking, the position of the trays pushed in each time may be inconsistent. If a large number of trays are required to be stacked, the trays will be misaligned and the stacking of the trays will fail.

[0006] Fourth, during the implementation process, the palletized material collection is transported by a support conveyor belt. Since there is no positioning device on it, the material collection will slip during transportation, resulting in an inaccurate final lifting position and failure to discharge the subsequent material collection;

[0007] Fifth, during the implementation process, when the stacked material trays are transported to the discharge port, the lifting mechanism including the lifting screw, screw bearing, lifting nut, lifting plate, and lifting motor cooperates to lift them up, and then discharge them one by one. Since the lifting mechanism is a screw-nut mechanism, and the screw-nut mechanism is generally not heat-resistant, it often gets stuck when used in a drying and curing furnace. In addition, the transmission efficiency of the screw-nut mechanism is not high compared to chain drive and belt drive. Utility Model Content

[0008] The technical problem to be solved by the present invention is to overcome the existing defects and provide a stacking and conveying device for a three-dimensional drying and curing furnace. The overall structure is compact, the volume is small, it is easy to manufacture and easy to operate. The heating furnace can be expanded in the width direction, which greatly expands the application range of the furnace in the market. The drive mode of the chain drive is adopted, and the efficiency is relatively improved. The material tray collection can be restricted by the fence so that the material tray collection will not slip during transportation, thereby ensuring the accuracy of the lifting position and ensuring that the subsequent material tray collection discharging work can proceed smoothly. Compared with the stacking operation of the prior art, the work efficiency is improved, which can effectively solve the problems in the background technology.

[0009] In order to achieve the purpose of the utility model, the utility model adopts the following technical solutions:

[0010] A stacking and conveying device for a three-dimensional drying and curing furnace includes a furnace body, a tray conveying and positioning device B, and a workpiece tray. An intermediate plate E is fixed to the bottom plate of the furnace body, and a stacking left and right limiting lifting device A2, a transition section lifting device G, and a lifting device A1 are respectively installed on the intermediate plate E. A stacking device A is provided in the middle of the lifting device A1, and stacking left and right limiting lifting devices A2 are provided on the left and right sides of the stacking device A, and stacking left and right limiting devices are provided on the sides of the stacking left and right limiting lifting device A2. A lifting device H is provided at the rear of the stacking device A.

[0011] Furthermore, the lifting device A1 is installed in the middle of the stacking device A and below the workpiece tray. The lifting device A1 includes a lifting plate, a lifting device cylinder, a lifting device guide column and a linear bearing b. The telescopic end of the lifting device cylinder is fixed with a lifting plate, and the lifting device guide column is arranged on the middle plate E. The bottom of the middle plate E is fixed with a linear bearing b, and the linear bearing b is assembled on the lifting device guide column. The lifting device guide column is fixed at the corners of the lifting plate.

[0012] Furthermore, the left and right limit devices for stacking are arranged close to the tray conveying and positioning device B, and the left and right limit devices for stacking and the workpiece tray stop head on the tray conveying and positioning device B form a fence for the workpiece tray. The left and right limit devices for stacking are respectively provided with a lifting device swing shaft, a lifting device counterweight shaft, a lifting device one-way ratchet stop and a lifting column, and the middle plate E is respectively provided with a linear bearing a and a lifting device cylinder, and the cylinder rod end of the lifting device cylinder is connected and fixed with a support plate, and the lifting columns are fixed at the corners of the support plate, and the linear bearing a is assembled on the lifting column.

[0013] Furthermore, the tray conveying and positioning device B is composed of four stepping conveying device fixing plates and four linear slide bearing seats F1. The four stepping conveying device fixing plates are fixed on the four linear slide bearing seats F1 of the linear slide F, and the linear slide F is installed on the bottom plate of the furnace body.

[0014] Furthermore, the transition section ejecting device G includes a transition section ejecting plate G4, a transition section guide column G3, a linear bearing G2 and a transition section ejecting device cylinder G1. The transition section guide column G3 is assembled and installed on the intermediate plate E through the linear bearing G2. One end of the transition section guide column G3 is fixedly connected to the transition section ejecting plate G4. The transition section ejecting device cylinder G1 is installed on the intermediate plate E. The cylinder rod end of the transition section ejecting device cylinder G1 is fixedly connected to the transition section ejecting plate G4.

[0015] Furthermore, the lifting device H includes a lifting device sprocket H1, a lifting device sprocket shaft H2, a lifting device sprocket H3, a lifting device slide rail H4, a lifting device reducer H5, a lifting device bearing seat H6, a lifting device driving shaft H7, a lifting device support plate H8 and a lifting device slider H9. The lifting device sprockets H1 are connected to each other through a chain H3, the lifting device slider H9 is installed on the chain H3, the lifting device support plate H8 is fixed on the lifting device slider H9, the lifting device driving shaft H7 is assembled on the side of the furnace body through the lifting device bearing seat H6, the lifting device sprocket shaft H2 is rotatably installed at the top position of the furnace body, the lifting device driving shaft H7 and the lifting device sprocket shaft H2 are both provided with a lifting device sprocket H1, the lifting device reducer H5 is installed on the inner side of the furnace body, and the output shaft of the lifting device reducer H5 is fixedly connected to the end of the lifting device driving shaft H7.

[0016] Compared with the prior art, the beneficial effects of the present invention are: the stacking and conveying device for the three-dimensional drying and curing furnace has the following advantages:

[0017] 1. Its overall structure is compact, small in size, easy to manufacture and easy to operate.

[0018] 2. It can expand the heating furnace in the width direction, greatly expanding the application range of the furnace in the market.

[0019] 3. It adopts chain drive, which has relatively improved efficiency. The material tray collection can be restricted by the fence, so that the material tray collection will not slip during transportation, thereby ensuring the accuracy of the lifting position and ensuring that the subsequent material tray collection discharging work can proceed smoothly.

[0020] 4. The feeding, stacking, stepping, transition lifting, lifting device lifting, lifting device unloading, returning, re-feeding, etc. are repeated to complete the work of the three-dimensional drying and curing furnace which can automatically feed and unload materials and can produce continuously. Compared with the stacking operation of the existing technology, its work efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0022] Figure 2 This is a schematic structural diagram of the palletizing device of the present utility model;

[0023] Figure 3 This is a schematic diagram of the component structure of the palletizing device of the present utility model;

[0024] Figure 4 This is a schematic structural diagram of the lifting device of the present utility model.

[0025] In the figure: 1-workpiece tray stopper, 2-workpiece tray, 3-workpiece tray entry guide groove, 4-ejector plate, 5-lifting column, 6-ejector device guide column, 7-linear bearing a, 8-linear bearing b, 9-support plate, 10-ejector device cylinder, 11-lifting device cylinder, 12-lifting device swing shaft, 13-lifting device counterweight shaft, 14-palletizing left and right limit devices, 15-lifting device one-way ratchet block, 16-stepping conveyor device fixed plate, palletizing device A, ejector device A1, palletizing left and right limit lifting device A2, tray Conveying and positioning device B, stepping conveying cylinder C, intermediate plate E, linear slide F, transition section ejecting device G, transition section lifting device cylinder G1, linear bearing G2, transition section guide column G3, G4 transition section ejecting plate, linear slide F, linear slide bearing seat F1, lifting device H, lifting device sprocket H1, lifting device sprocket shaft H2, lifting device sprocket H3, lifting device slide rail H4, lifting device reducer H5, lifting device bearing seat H6, lifting device driving shaft H7, lifting device support plate H8, lifting device slider H9. DETAILED DESCRIPTION

[0026] The present invention will be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0027] See also Figure 1-4This embodiment provides a technical solution: a stacking and conveying device for a three-dimensional drying and curing furnace, including a furnace body, a tray conveying and positioning device B, and a workpiece tray 2. An intermediate plate E is fixed to the bottom plate of the furnace body, and the intermediate plate E is respectively installed with a stacking left and right limiting lifting device A2, a transition section lifting device G, and a lifting device A1. The middle part of the lifting device A1 is provided with a stacking device A, and the left and right sides of the stacking device A are provided with stacking left and right limiting lifting devices A2, and the sides of the stacking left and right limiting lifting device A2 are provided with stacking left and right limiting devices 14. The rear of the stacking device A is provided with a lifting device H. Its overall structure is compact, the volume is small, it is easy to manufacture, and it is convenient to operate.

[0028] The ejecting device A1 is installed in the middle of the stacking device A and below the workpiece tray 2. The ejecting device A1 includes a ejecting plate 4, an ejecting device cylinder 10, an ejecting device guide column 6 and a linear bearing b8. The telescopic end of the ejecting device cylinder 10 is fixed with the ejecting plate 4. The ejecting device guide column 6 is arranged on the middle plate E. The bottom of the middle plate E is fixed with a linear bearing b8. The linear bearing b8 is assembled on the ejecting device guide column 6. The ejecting device guide column 6 is fixed at the corners of the ejecting plate 4. The left and right stacking limit devices 14 are arranged close to the tray conveying and positioning device B. The left and right stacking limit devices 14 and the workpiece tray stopper 1 on the tray conveying and positioning device B form a barrier for the workpiece tray 2. The left and right stacking limit devices 14 are respectively provided with a lifting device swing shaft 12. Lifting device counterweight shaft 13, lifting device one-way ratchet block 15 and lifting column 5, linear bearing a7 and lifting device cylinder 11 are respectively provided on the middle plate E, the cylinder rod end of the lifting device cylinder 11 is connected and fixed with a support plate 9, and the lifting column 5 is fixed at the corner of the support plate 9, and the linear bearing a7 is assembled on the lifting column 5. The tray conveying and positioning device B is composed of four stepping conveyor fixed plates 16 and four linear slide bearing seats F1. The four stepping conveyor fixed plates 16 are fixed on the four linear slide bearing seats F1 of the linear slide F. The linear slide F is installed on the bottom plate of the furnace body. When the first workpiece tray 2 is pushed into the enclosure composed of the workpiece tray stop head 1 and the left and right stacking limit devices 14 by the mechanical device outside the furnace, as shown Figure 3As shown, next, the ejector plate 4 under the workpiece tray 2 starts to rise along the direction guided by the ejector guide column 6 under the drive of the ejector cylinder 10, and lifts up the workpiece tray 2 after contacting it. At the same time, the four lifting device one-way ratchet blocks 15 on the left and right limit lifting devices A2 of the stacking are also lifted up. When the workpiece tray 2 reaches a certain position, it continues to rise. The four lifting device one-way ratchet blocks 15 begin to fall due to the gap on the workpiece tray 2 and the action of the lifting device counterweight shaft 13, and then return to the starting position. Next, the workpiece tray 2 When the material tray 2 reaches the designed high position, the ejection device cylinder 10 retreats, and the workpiece material tray 2 follows and descends. When the workpiece material tray 2 descends to a certain position, it is blocked by the one-way ratchet block 15 of the lifting device and falls on it, and the ejection plate 4 on the ejection device A1 continues to descend back to the starting position along with the ejection device cylinder 10, which makes the enclosure composed of the workpiece material tray stop head 1 and the left and right stacking limit devices 14 vacated, and the second workpiece material tray 2 can be pushed in from outside the furnace. At this point, the first workpiece material tray 2 completes a stacking process, and then the second workpiece material tray 2 is pushed in, and under the control of the overall CNC system, it completes the above palletizing process, the third, fourth, and so on, until the required number of workpiece trays is palletized; next, when the workpiece tray 2 is palletized to the required number of workpiece trays, a workpiece tray palletizing set is formed. At this time, the feeding stops, and the lifting device cylinder 11 of the palletizing left and right limit lifting device A2 starts to extend, passing through the four lifting columns 5 on the support plate 9. At this time, the palletizing left and right limit devices 14, the lifting device swing shaft 12, the lifting device counterweight shaft 13 and the lifting device single It descends together with the ratchet stop 15. When it descends to a certain position, the tray stepping conveying and clamping device B holds the workpiece tray stacking assembly and keeps it on it. After descending to the designed position, it makes room for the tray stepping conveying and clamping device B to step and retract. Next, the stepping conveying cylinder C is started to push the tray stepping conveying and clamping device B, and step forward with the workpiece tray stacking assembly. After reaching the position, the stepping conveying cylinder C stops working, which can expand the heating furnace in the width direction, greatly expanding the application range of the furnace in the market.

[0029] The transition section ejecting device G includes a transition section ejecting plate G4, a transition section guide column G3, a linear bearing G2 and a transition section ejecting device cylinder G1. The transition section guide column G3 is assembled and installed on the intermediate plate E through the linear bearing G2. One end of the transition section guide column G3 is fixedly connected to the transition section ejecting plate G4. The transition section ejecting device cylinder G1 is installed on the intermediate plate E. The end of the cylinder rod of the transition section ejecting device cylinder G1 is fixedly connected to the transition section ejecting plate G4. The transition section ejecting device cylinder G1 in the transition section ejecting device G starts to start, and the transition section ejecting plate G4 is lifted up under the guidance of the transition section guide column G3, and the workpiece material tray stacking assembly is lifted up to separate from the material tray stepping conveying and positioning device B, and then reaches the designed position, so that the material tray stepping conveying and positioning device B can be retracted; next, the stepping conveying cylinder C starts to retract, and the material tray stepping conveying and positioning device B returns to the starting position; next, the transition section ejecting device cylinder G1 in the transition section ejecting device G starts to start, and the transition section ejecting plate G4 starts to descend under the guidance of the transition section guide column G3, and the workpiece material tray stacking assembly follows and descends to a The tray at the fixed position is returned to the starting position by stepping and conveying, and the second position of the positioning device B is caught. The transition section top plate G4 continues to descend and return to the starting position. Then, the tray stacking collection of the original stacking station is stepped and moved to the second station. The stacking station becomes idle and the next tray stacking collection work can be carried out. The position of the lifting device H is also in idle, and its components are all in the original position. At this time, the workpiece tray 2 entering the furnace continues to be stacked at the stacking station until it reaches the designed number and becomes the next workpiece tray stacking collection. The state is that there is a workpiece pallet palletizing set at the palletizing station, and there is also a workpiece pallet pallet palletizing set at the transition section station. The lifting device H station is still in the original state. Then, the workpiece pallet pallet palletizing set steps from the palletizing station to the transition section station, which is the same as described above and will not be repeated here. Next, the workpiece pallet pallet palletizing set I at the transition section station is on the pallet stepping conveying and positioning device B, and the pallet stepping conveying and positioning device B is pushed by the stepping conveying cylinder C and steps to the bottom of the lifting device H station, that is, the workpiece pallet pallet palletizing set I is conveyed to this station.

[0030] The lifting device H includes a lifting device sprocket H1, a lifting device sprocket shaft H2, a lifting device sprocket H3, a lifting device slide rail H4, a lifting device reducer H5, a lifting device bearing seat H6, a lifting device driving shaft H7, a lifting device support plate H8 and a lifting device slider H9. The lifting device sprockets H1 are connected to each other through a chain H3, the lifting device slider H9 is installed on the chain H3, the lifting device support plate H8 is fixed on the lifting device slider H9, the lifting device driving shaft H7 is assembled on the side of the furnace body through the lifting device bearing seat H6, and the lifting device sprocket shaft H2 is rotatably installed on the top of the furnace body. At the bottom position, the lifting device driving shaft H7 and the lifting device sprocket shaft H2 are both provided with a lifting device sprocket H1, the lifting device reducer H5 is installed on the inner side of the furnace body, and the output shaft of the lifting device reducer H5 is fixedly connected to the end of the lifting device driving shaft H7. The driving device in the lifting device H and the lifting device reducer H5 are started, and the power passes through the lifting device driving shaft H7, the lifting device sprocket H1, the lifting device chain H3, and the lifting device slider H9, so that the lifting device support plate H8 on it moves upward along the lifting device slide rail H4, and the workpiece material tray on the work station is stacked and assembled at the same time. Lifting movement, next, the workpiece material tray stacking assembly is separated from the material tray stepping conveying and positioning device B, so that it is driven by the stepping conveying cylinder C to do a retreat movement; next, the material tray stepping conveying and positioning device B does the retreat work and returns to the original position, the transition section ejecting device G returns to the starting position, the workpiece material tray stacking assembly returns to its station and is on the material tray stepping conveying and positioning device B; next, the state at this time is that the workpiece material tray stacking assembly on the lifting device station performs the furnace work at the furnace outlet, and there is a workpiece material tray stacking assembly stepping from the stacking station on the transition section ejecting device G station, and the stacking work The position is in an empty state, waiting for the next workpiece tray 2 to enter and continue the stacking work; next, the cycle of feeding, stacking, stepping, transition lifting, lifting device lifting, lifting device unloading, returning, re-feeding, etc. is repeated to complete the work of the three-dimensional drying and curing furnace with automatic feeding and unloading and continuous production. It adopts a chain drive method, which is relatively efficient. The tray collection can be restricted by the fence, so that the tray collection will not slip during transportation, thereby ensuring the accuracy of the lifting position and ensuring that the subsequent tray collection unloading work can proceed smoothly.

[0031] The working principle of the stacking and conveying device for a three-dimensional drying and curing furnace provided by the utility model is as follows: When the first workpiece tray 2 is pushed into the enclosure composed of the workpiece tray stopper 1 and the left and right limit devices 14 of the stacking by the mechanical device outside the furnace, Figure 3As shown, next, the ejector plate 4 under the workpiece tray 2, driven by the ejector cylinder 10, begins to rise in the direction guided by the ejector guide column 6, contacts the workpiece tray 2 and lifts it up. At the same time, the four lifting device one-way ratchet blocks 15 on the left and right limit lifting devices A2 of the stacking are also lifted up. When the workpiece tray 2 reaches a certain position, it continues to rise. The four lifting device one-way ratchet blocks 15 begin to descend due to the gap on the workpiece tray 2 and under the action of the lifting device counterweight shaft 13, and then return to the starting position.

[0032] Next, when the workpiece tray 2 reaches the designed high position, the ejection device cylinder 10 retreats, and the workpiece tray 2 follows and descends. When the workpiece tray 2 descends to a certain position, it is blocked by the one-way ratchet block 15 of the lifting device and falls on it, and the ejection plate 4 on the ejection device A1 continues to descend back to the starting position along with the ejection device cylinder 10, which makes the enclosure composed of the workpiece tray stopper 1 and the left and right stacking limit devices 14 vacated, and the second workpiece tray 2 can be pushed in from outside the furnace. At this point, the first workpiece tray 2 completes a stacking process. Next, the second workpiece tray 2 is pushed in, and under the control of the overall CNC system, it completes the above stacking process, the third, fourth, and so on, until the required number of pieces are stacked.

[0033] Next, when the workpiece trays 2 are stacked to the required number, a workpiece tray stacking set is formed. At this time, the feeding stops, and the lifting device cylinder 11 of the stacking left and right limit lifting device A2 starts to extend, passing through the four lifting columns 5 on the support plate 9. At this time, the stacking left and right limit devices 14, the lifting device swing shaft 12, the lifting device counterweight shaft 13 and the lifting device one-way ratchet block 15 are lowered together. When they are lowered to a certain position, the tray stepping conveying and clamping device B holds the workpiece tray stacking set and keeps it on it. After it is lowered to the designed position, the position is given up so that the tray stepping conveying and clamping device B can step and retract.

[0034] Next, the stepping conveying cylinder C starts, pushing the tray stepping conveying and positioning device B, and moving the workpiece tray stacking assembly forward. After reaching the position, the stepping conveying cylinder C stops working;

[0035] Next, the transition section ejecting device cylinder G1 in the transition section ejecting device G starts to start, and the transition section ejecting plate G4 is lifted up under the guidance of the transition section guide column G3, lifting the workpiece tray stacking assembly out of the tray stepping conveying and positioning device B, and then reaching the designed position, so that the tray stepping conveying and positioning device B can be returned;

[0036] Next, the stepping cylinder C starts to return, and the tray stepping conveying and positioning device B returns to the starting position;

[0037] Next, the transition section ejecting device cylinder G1 in the transition section ejecting device G starts to start, and the transition section ejecting plate G4 starts to descend under the guidance of the transition section guide column G3. The workpiece pallet stacking assembly follows and descends to a certain position and is caught by the second position of the pallet stepping conveying and positioning device B which has returned to the starting position. The transition section ejecting plate G4 continues to descend back to the starting position. Then, the pallet stacking assembly at the original stacking station is stepped and moved to the second station. The stacking station becomes idle and can carry out the next pallet stacking assembly. The position of the lifting device H is also in idle, and its components are all in their original positions.

[0038] At this time, the workpiece tray 2 entering the furnace continues to be stacked at the stacking station until the designed number is reached and becomes the next workpiece tray stacking set. The current state is that there is a workpiece tray stacking set at the stacking station, and there is also a workpiece tray stacking set at the transition section station. The lifting device H station is still in the original state. Then, the workpiece tray stacking set steps from the stacking station to the transition section station, which is the same as described above and will not be repeated.

[0039] Next, the workpiece pallet stacking set I at the transition section station is on the pallet stepping conveying and positioning device B. The pallet stepping conveying and positioning device B is pushed by the stepping conveying cylinder C and steps to the lower position of the lifting device H. That is, the workpiece pallet stacking set I is conveyed to this station. Then, the driving device in the lifting device H, the lifting device reducer H5 is started, and the power passes through the lifting device active shaft H7, the lifting device sprocket H1, the lifting device chain H3, and the lifting device slider H9, so that the lifting device support plate H8 on it moves upward along the lifting device slide rail H4, and the workpiece pallet stacking set on the station also moves upward at the same time.

[0040] Next, the workpiece pallet stacking assembly is separated from the pallet stepping conveying and positioning device B, and is driven by the stepping conveying cylinder C to make a retreat motion;

[0041] Next, the tray stepping conveyor and positioning device B returns to its original position, the transition section ejecting device G returns to its starting position, and the workpiece tray is stacked and assembled back to its work station and on the tray stepping conveyor and positioning device B;

[0042] Next, the status at this time is that the workpiece trays on the lifting device station are stacked together, and the furnace is being fired at the furnace outlet. The workpiece trays are stacked together at the transition section ejecting device station G, and the stacking station is in an empty state, waiting for the next workpiece tray 2 to enter and continue the stacking work.

[0043] Next, the process of feeding, stacking, stepping, transition lifting, lifting of the lifting device, unloading of the lifting device, returning, and re-feeding is repeated over and over again to complete the work of the three-dimensional drying and curing furnace with automatic feeding and unloading and continuous production.

[0044] It is worth noting that the components disclosed in the above embodiments are all universal standard parts or components known to those skilled in the art, and their structures and principles are known to those skilled in the art through technical manuals or conventional experimental methods. In order to facilitate the overall operation, the palletizing device is provided with a corresponding overall numerical control system, that is, the overall automatic operation of the palletizing and conveying device is fully operated by the overall numerical control system, thereby not only ensuring the safety and efficient operation of the overall system, but also achieving the purpose of automated production.

[0045] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium; internal communication between two elements, or interaction between two elements, unless otherwise specified. Those skilled in the art can understand the specific meanings of the above terms in this utility model based on the specific circumstances. For example, a rotational connection can refer to a rotational connection via a bearing.

[0046] The parts of the present invention that are not described in detail are prior art. Although the present invention is specifically demonstrated and introduced in conjunction with the preferred implementation scheme, there are many methods and ways to implement the technical solution. The above is only a preferred implementation scheme of the present invention. However, technical personnel in the relevant field should understand that various changes can be made to the form and details of the present invention without departing from the spirit and scope of the present invention as defined by the attached claims, and all of them are within the scope of protection of the present invention.

Claims

1. A stacking and conveying device for a three-dimensional drying and curing furnace, comprising a furnace body, a tray conveying and positioning device B and a workpiece tray (2), characterized in that: An intermediate plate E is fixed on the bottom plate of the furnace body, and a stacking left and right limiting lifting device A2, a transition section top-loading device G and a top-loading device A1 are respectively installed on the intermediate plate E. A stacking device A is provided in the middle of the top-loading device A1, and stacking left and right limiting lifting devices A2 are provided on the left and right sides of the stacking device A, and stacking left and right limiting devices (14) are provided on the sides of the stacking left and right limiting lifting devices A2. A lifting device H is provided at the rear of the stacking device A.

2. The stacking and conveying device for a three-dimensional drying and curing furnace according to claim 1, characterized in that: The ejecting device A1 is installed in the middle of the stacking device A and below the workpiece material tray (2). The ejecting device A1 includes an ejecting plate (4), an ejecting device cylinder (10), an ejecting device guide column (6) and a linear bearing b (8). The telescopic end of the ejecting device cylinder (10) is fixed with the ejecting plate (4). The ejecting device guide column (6) is arranged on the middle plate E. The bottom of the middle plate E is fixed with a linear bearing b (8). The linear bearing b (8) is assembled on the ejecting device guide column (6). The ejecting device guide column (6) is fixed at the corner of the ejecting plate (4).

3. The stacking and conveying device for a three-dimensional drying and curing furnace according to claim 1, characterized in that: The stacking left and right limit devices (14) are arranged close to the tray conveying and positioning device B. The stacking left and right limit devices (14) and the workpiece tray stopper (1) on the tray conveying and positioning device B form a barrier for the workpiece tray (2). The stacking left and right limit devices (14) are respectively provided with a lifting device swing shaft (12), a lifting device counterweight shaft (13), a lifting device one-way ratchet stop (15) and a lifting column (5). The intermediate plate E is respectively provided with a linear bearing a (7) and a lifting device cylinder (11). The end of the cylinder rod of the lifting device cylinder (11) is connected and fixed with a support plate (9). The lifting column (5) is fixed at the corner of the support plate (9). The linear bearing a (7) is assembled on the lifting column (5).

4. The stacking and conveying device for a three-dimensional drying and curing furnace according to claim 1, characterized in that: The tray conveying and positioning device B is composed of four stepping conveying device fixing plates (16) and four linear slide bearing seats F1. The four stepping conveying device fixing plates (16) are fixed on the four linear slide bearing seats F1 of the linear slide F. The linear slide F is installed on the bottom plate of the furnace body.

5. The stacking and conveying device for a three-dimensional drying and curing furnace according to claim 1, characterized in that: The transition section ejecting device G includes a transition section ejecting plate G4, a transition section guide column G3, a linear bearing G2 and a transition section ejecting device cylinder G1. The transition section guide column G3 is assembled and installed on the intermediate plate E through the linear bearing G2. One end of the transition section guide column G3 is fixedly connected to the transition section ejecting plate G4. The transition section ejecting device cylinder G1 is installed on the intermediate plate E. The cylinder rod end of the transition section ejecting device cylinder G1 is fixedly connected to the transition section ejecting plate G4.

6. The stacking and conveying device for a three-dimensional drying and curing furnace according to claim 1, characterized in that: The lifting device H includes a lifting device sprocket H1, a lifting device sprocket shaft H2, a lifting device sprocket H3, a lifting device slide rail H4, a lifting device reducer H5, a lifting device bearing seat H6, a lifting device driving shaft H7, a lifting device support plate H8 and a lifting device slider H9. The lifting device sprockets H1 are connected by a chain H3, the lifting device slider H9 is installed on the chain H3, the lifting device support plate H8 is fixed on the lifting device slider H9, the lifting device driving shaft H7 is assembled on the side of the furnace body through the lifting device bearing seat H6, the lifting device sprocket shaft H2 is rotatably installed at the top position of the furnace body, the lifting device driving shaft H7 and the lifting device sprocket shaft H2 are both provided with a lifting device sprocket H1, the lifting device reducer H5 is installed on the inner side of the furnace body, and the output shaft of the lifting device reducer H5 is fixedly connected to the end of the lifting device driving shaft H7.

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