A curing kiln multi-layer stacking device

Abstract

The utility model discloses a kind of maintenance kiln multilayer stacking devices, the device includes bottom conveying module, vertical lifting module and top conveying module, the bottom conveying module is used to input to the bottom of vertical lifting module or output with the support plate, the vertical lifting module is used to drive support plate lifting and form multilayer support plate stacking with support plate is lifted one by one upwards, the top conveying module is used to output or input with the support plate from the top of vertical lifting module.The utility model solves the problem that traditional stacking device can only be input and output with the support plate in single direction by bottom, effectively improves the conveying efficiency of concrete member and the space utilization of maintenance kiln, reduces manual intervention and operation risk, meets the demand of efficient stacking and transfer in modern precast concrete member production.

Description

Technical Field

[0001] This utility model relates to the field of precast concrete component production and curing equipment, specifically to a multi-layer stacking device for a curing kiln. Background Technology

[0002] In the production process of precast concrete components, the curing process is crucial. Traditional curing is mostly done outdoors, with manual watering to control humidity. This method is easily affected by factors such as temperature fluctuations and the level of management standards, resulting in unstable curing quality. However, current production workshops generally use curing kilns with intelligent temperature and humidity control. These kilns can create a precisely controlled curing environment for the components, allowing them to reach the design strength in just 6 to 8 hours after going through heating, constant temperature, and cooling stages. This reduces the curing time by nearly half compared to traditional methods, significantly improving the production pace.

[0003] To fully utilize the capacity of curing kilns and optimize space utilization, the industry typically employs stacking devices to neatly arrange pallets carrying concrete components into the kiln in multi-layered stacks for batch curing operations. However, existing stacking devices for curing kilns suffer from significant operational limitations, primarily due to their over-reliance on a single-direction operation mode of the bottom conveyor line for pallet input and output. During stacking operations, pallets and components can only be moved one by one from the bottom to the bottom of the lifting equipment, which then lifts them up to complete the stacking and static curing process. After the curing cycle ends, the pallets and components must be removed sequentially from the bottom of the lifting equipment. Consequently, to input a new batch of components to be cured, all cured components and pallets must be output one by one from the bottom of the lifting equipment. This process is time-consuming and significantly slows down production efficiency, failing to meet the urgent needs of current production workshops for high-frequency, large-scale curing of concrete components.

[0004] Therefore, there is an urgent need to design a multi-layer stacking curing kiln to meet the comprehensive needs of current concrete components in the stacking, transportation and curing process, thereby promoting the smooth operation of the entire production chain. Utility Model Content

[0005] The purpose of this utility model is to provide a multi-layer stacking device for curing kilns. This multi-layer stacking device for curing kilns can realize bidirectional entry and exit of pallets from the top and bottom, and independent lifting and retrieval of each layer, so as to solve the problem of low efficiency caused by traditional stacking devices that can only input and output pallets from the bottom in one direction. It realizes efficient stacking and transfer of pallets in curing kilns, and reduces manual intervention and operational risks.

[0006] The technical solution adopted by this utility model to solve the above problems is: a multi-layer stacking device for curing kilns, including a bottom conveying module, a vertical lifting module and a top conveying module. The bottom conveying module is used to input pallets to the bottom of the vertical lifting module or to output pallets. The vertical lifting module is used to drive the pallets to rise and fall and lift the pallets one by one to form a multi-layer pallet stack. The top conveying module is used to output pallets from the top of the vertical lifting module or to input pallets.

[0007] Preferably, the bottom conveying module includes a conveyor housing, a first drive motor, several rollers, and two sets of chain belts. The rollers are rotatably disposed inside the conveyor housing, and the two sets of chain belts are respectively sleeved on two sets of drum wheels on the rollers. The first drive motor is fixedly disposed on the conveyor housing, and its output shaft is connected to a set of roller shafts to drive the chain belts to move the pallet.

[0008] Preferably, the vertical lifting module includes two sets of lifting units symmetrically arranged on both sides of the bottom conveying module and the top conveying module. The lifting unit includes a lifting frame, a second drive motor, a bottom drive shaft, a top drive shaft, and three sets of chains. Both the bottom drive shaft and the top drive shaft are equipped with three sets of sprockets adapted to the chain drive. The output shaft of the second drive motor is connected to the bottom drive shaft through a transmission mechanism. Support plates for supporting the edges of the pallets are arranged at equal intervals on the outer side of the chains.

[0009] Preferably, the top conveying module includes a guide rail, a sliding base, and a clamping assembly. The guide rail is fixedly installed on the top of the curing kiln. The sliding base is connected and adapted to the guide rail and is provided with a driving component for driving it to slide along the guide rail. The clamping assembly is used to clamp the front and rear ends of the tray.

[0010] Preferably, the clamping assembly includes a fixed plate and two sets of clamping units. The fixed plate is fixedly disposed at the bottom of the sliding unit, and the two sets of clamping units are symmetrically disposed at both ends of the fixed plate. Each set includes a drive cylinder and a clamping plate. The drive cylinder is fixedly connected to the fixed plate through a cylinder seat. The clamping plate is connected and fixed to the piston rod of the drive cylinder and is provided with an extension for lifting the front and rear ends of the pallet.

[0011] Preferably, the clamping plate is further provided with a plurality of limiting posts, the support plate is provided with limiting channels adapted to the limiting posts, and a slot is provided at the lower end of the limiting channel.

[0012] Preferably, the clamping plate is provided with guide posts at both ends, and the fixing plate is provided with guide grooves on both sides that are adapted to slide with the guide posts.

[0013] Compared with existing technologies, this invention has the following advantages and effects: Through the coordinated operation of the bottom conveying module, the vertical lifting module, and the top conveying module, this invention achieves efficient stacking and transfer of pallets within the curing kiln. Both the bottom and top conveying modules can input and output pallets. Combined with the lifting function of the vertical lifting module, this not only solves the problem of traditional stacking devices only allowing pallet input and output in a single bottom direction, but also enables bidirectional input and output of pallets from both the top and bottom of the vertical lifting module. This effectively improves the conveying efficiency of concrete components and the space utilization of the curing kiln, reduces manual intervention and operational risks, and meets the demands for efficient stacking and transfer in modern precast concrete component production. Attached Figure Description

[0014] Figure 1 This is a perspective view of a multi-layer stacking device for a curing kiln according to an embodiment of this utility model.

[0015] Figure 2 This is a front view of a multi-layer stacking device for curing kilns according to an embodiment of this utility model.

[0016] Figure 3 yes Figure 2 A magnified view of the local structure at point A in the diagram.

[0017] Figure 4 This is a side view of a multi-layer stacking device for curing kilns according to an embodiment of this utility model.

[0018] Figure 5 This is a schematic diagram of the top conveying module in an embodiment of this utility model.

[0019] Figure 6 yes Figure 5 A magnified view of the local structure at point B in the diagram.

[0020] Figure 7 This is a schematic diagram of the bottom conveying module of this utility model.

[0021] Figure 8 This is a schematic diagram illustrating the principle of the clamping plate fixing support plate in an embodiment of this utility model.

[0022] Figure Numbers: Pallet 10, Bottom Conveying Module 11, Vertical Lifting Module 12, Top Conveying Module 13, Conveyor Housing 14, First Drive Motor 15, Roller 16, Chain Belt 17, Pulley 18, Lifting Unit 21, Lifting Frame 22, Second Drive Motor 23, Bottom Drive Shaft 24, Top Drive Shaft 25, Chain 26, Sprocket 27, Transmission Mechanism 28, Support Plate 29, Guide Rail 31, Sliding Base 32, Clamping Assembly 33, Drive Component 34, Third Drive Motor 35, Drive Wheel 36, Rack 37, Fixing Plate 41, Clamping Unit 42, Drive Cylinder 43, Clamping Plate 44, Cylinder Seat 45, Extension 46, Limiting Post 51, Limiting Channel 52, Slot 53, Guide Post 54, Guide Groove 55. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0024] Example:

[0025] See Figure 1 - Figure 8 This embodiment relates to a multi-layer stacking device for a curing kiln, specifically used for the efficient stacking and transfer of precast concrete components within the curing kiln. This addresses the problem of low efficiency caused by traditional stacking devices that can only input and output pallets 10 in a single bottom direction. Specifically, it includes a bottom conveying module 11, a vertical lifting module 12, and a top conveying module 13. The bottom conveying module 11 is used to input pallets 10 to the bottom of the vertical lifting module 12 or output pallets 10. The vertical lifting module 12 is used to drive the pallets 10 to rise and fall, and to lift the pallets 10 one by one to form a multi-layer stack of pallets 10. The top conveying module 13 is used to output pallets 10 from the top of the vertical lifting module 12 or input pallets 10.

[0026] Specifically, in this embodiment, the bottom conveying module 11, the vertical lifting module 12, and the top conveying module 13 constitute a complete circulation system, realizing the operation mode of pallet 10 input from the bottom, multi-layer stacking for maintenance, and output from the top.

[0027] Both the bottom conveying module 11 and the top conveying module 13 in this invention can input and output pallets 10. Taking the bottom conveying module 11 as the input pallet 10 as an example, when the pallets 10 of precast concrete components need to be input into the curing kiln for stacking and curing, the bottom conveying module 11 first receives the pallets 10 and concrete components from the external curing area. These pallets 10 are conveyed to the bottom of the vertical lifting module 12 via the chain 17 of the bottom conveying module 11. At this time, the vertical lifting module 12 lifts the pallets 10 one by one, forming multiple layers of stacking. This process continues until the predetermined stacking height is reached. After curing is completed, the pallets 10 need to be output from the curing kiln. At this time, the vertical lifting module 12 adjusts the top pallet 10 to the height of the top conveying module 13. The top conveying module 13 pulls the pallets 10 out from the top of the vertical lifting module 12 and conveys them to the unloading area outside the curing kiln for subsequent unloading, packaging, and other processes.

[0028] Compared with traditional stacking devices that can only achieve single-in-single-out material conveying of pallets 10 at the bottom, this utility model adds a top conveying module 13. In addition to the bottom conveying module 11 enabling the input or output of pallets 10 at the bottom of the vertical lifting module 12, the top conveying module 13 also enables the output or input of pallets 10 at the top of the vertical lifting module 12. This realizes the bidirectional input and output function of pallets 10 at the top and bottom of the vertical lifting module 12, effectively improving the conveying efficiency of concrete components and the space utilization of the curing kiln, reducing manual intervention and operational risks, and meeting the needs of modern precast concrete component production for efficient stacking and transfer.

[0029] See Figure 7 In this embodiment, the bottom conveying module 11 includes a conveyor housing 14, a first drive motor 15, several rollers 16, and two sets of chain belts 17. The rollers 16 are rotatably disposed inside the conveyor housing 14, and the two sets of chain belts 17 are respectively sleeved on two sets of roller wheels 18 on the rollers 16. The first drive motor 15 is fixedly disposed on the conveyor housing 14, and its output shaft is axially connected to one set of rollers 16 to drive the chain belts 17 to move the pallet 10. In actual operation, the first drive motor 15 starts, and its output shaft drives the connected rollers 16 to rotate, thereby driving the two sets of chain belts 17 to rotate synchronously. The pallet 10 is placed on the chain belts 17 and is conveyed forward as the chain belts 17 move. During the input process of pallet 10, the pallets 10 to be stacked are placed sequentially on the chain 17 of the bottom conveyor module 11. Driven by the first drive motor 15, the chain 17 continuously conveys the pallets 10 to the bottom interface of the vertical lifting module 12. Alternatively, when the pallets 10 are output, after descending layer by layer through the vertical lifting module 12, the pallets 10 return to the bottom conveyor module 11, and the chain 17 carries them away from the device and transfers them to the subsequent component processing or storage area.

[0030] In this embodiment, the vertical lifting module 12 includes two sets of lifting units 21 symmetrically arranged on both sides of the bottom conveying module 11 and the top conveying module 13. Each lifting unit 21 includes a lifting frame 22, a second drive motor 23, a bottom drive shaft 24, a top drive shaft 25, and three sets of chains 26. Both the bottom drive shaft 24 and the top drive shaft 25 are equipped with three sets of sprockets 27 adapted to the chain 26. The output shaft of the second drive motor 23 is connected to the bottom drive shaft 24 via a transmission mechanism 28 (which can be a chain drive, belt drive, or other transmission method). Support plates 29 for supporting the edges of the pallet 10 are evenly spaced on the outer side of the chain 26. During stacking operations, the second drive motor 23 starts, driving the bottom drive shaft 24 to rotate via the transmission mechanism 28. The sprockets 27 on the bottom drive shaft 24 mesh with the chain 26, causing the chain 26 to rise stably along the lifting frame 22. The support plates 29, evenly spaced on the outer side of the chain 26, are inserted into the edges of the pallets 10 one by one during the upward movement, lifting the pallets 10 one by one to achieve orderly stacking of multiple pallets 10. When it is necessary to lower the pallets 10, the second drive motor 23 rotates in reverse, driving the chain 26 to descend, and the support plates 29 then lower the pallets 10 layer by layer until the pallets 10 return to the position of the bottom conveying module 11 or the top conveying module 13, ready for the next conveying operation.

[0031] See Figure 5In this embodiment, the top conveying module 13 includes a guide rail, a sliding base, and a clamping assembly 33. The guide rail is fixedly installed on the top of the curing kiln. The sliding base is connected and adapted to the guide rail and is equipped with a driving component 34 for driving it to slide along the guide rail. The clamping assembly 33 is used to clamp the front and rear ends of the pallet 10. The guide rail is made of high-strength steel and is firmly fixed to the top of the curing kiln by anchors, providing a stable running track for the sliding base. The sliding base and the guide rail are slidably connected by a slider or roller, and the driving component 34 is installed on it. When it is necessary to output the pallet 10 from the top of the vertical lifting module 12, the driving component 34 is activated, driving the sliding base to slide along the guide rail to the top of the vertical lifting module 12. At this time, the clamping assembly 33 starts to work, clamping the pallet 10 output from the top of the vertical lifting module 12, and under the drive of the driving component 34, pulling the pallet 10 out from the top of the vertical lifting module 12 and conveying it to a designated position (such as a discharge platform or transfer track). When it is necessary to input the pallet 10 to the top of the vertical lifting module 12, the sliding base carries the pallet 10 to the top of the vertical lifting module 12. The clamping component 33 releases the pallet 10, and the pallet 10 falls into the top receiving position of the vertical lifting module 12 under the action of gravity. The vertical lifting module 12 then continues to complete the downward stacking action. The driving component 34 includes a third driving motor 35 and a driving wheel 36. The third driving motor 35 is fixedly mounted on the slide, and its output shaft is shaft-connected to the driving wheel 36. When the driving wheel 36 uses a gear, a rack 37 that meshes with the gear must be provided on the guide rail. When the third driving motor 35 is powered on, its output shaft drives the driving wheel 36 to rotate. The driving wheel 36 meshes with the rack 37 or other transmission structures on the side of the guide rail to generate traction force, thereby driving the sliding base to move along the guide rail.

[0032] In this embodiment, the clamping assembly 33 includes a fixed plate 41 and two sets of clamping units 42. The fixed plate 41 is fixedly disposed at the bottom of the sliding unit, and the two sets of clamping units 42 are symmetrically disposed at both ends of the fixed plate 41. Each set of clamping units 42 includes a drive cylinder 43 and a clamping plate 44. The drive cylinder 43 is fixedly connected to the fixed plate 41 through a cylinder seat 45. The clamping plate 44 is connected and fixed to the piston rod of the drive cylinder 43 and is provided with an extension 46 for supporting the front and rear ends of the support plate 10. The fixed plate 41 is made of thick steel plate and is installed at the bottom of the sliding base by welding or bolting. The two sets of clamping units 42 are symmetrically distributed at the front and rear ends of the fixed plate 41. The drive cylinder 43 is tightly connected to the fixed plate 41 through the cylinder seat 45, and the clamping plate 44 is installed at the front end of the piston rod of the drive cylinder 43. When it is necessary to clamp the tray 10, the piston rod of the drive cylinder 43 extends and drives the clamping plate 44 to move inward, and the extension part 46 tightly grips both ends of the tray 10; when it is necessary to release the tray 10, the piston rod of the drive cylinder 43 retracts, the clamping plate 44 moves outward, and the tray 10 is released, so that it can smoothly enter or exit the vertical lifting module 12.

[0033] See Figure 6 and Figure 8 The clamping plate 44 is further provided with several limiting posts 51, and the pallet 10 has limiting channels 52 adapted to the limiting posts 51, with a slot 53 at the lower end of the limiting channel 52. In this embodiment, three sets of limiting posts 51 are equally spaced at the end of the clamping plate 44, corresponding to the positions of the limiting channels 52 on the pallet 10. The inner diameter of the limiting channel 52 needs to be slightly larger than the diameter of the limiting post 51 to ensure that the limiting post 51 can be smoothly inserted into the limiting channel 52 during clamping, effectively limiting and fixing the pallet 10. This design of the limiting post 51 and the limiting channel 52 improves the stability of the pallet 10 during transportation and effectively avoids the risk of the pallet 10 and concrete components falling from a height when transported by the top conveying module 13. In addition, guide posts 54 are provided at both ends of the clamping plate 44, and guide grooves 55 that slide and adapt to the guide posts 54 are provided on both sides of the fixing plate 41. During the reciprocating motion of the clamping plate 44, the guide post 54 slides along the guide groove 55, playing a guiding and stabilizing role, making the limiting post 51 more stable when inserted into the limiting channel 52. In this embodiment, the first drive motor 15, the second drive motor 23, the third drive motor 35, and the cylinder all adopt existing commercially available specifications and models and are adapted with corresponding power supplies and control modules, which will not be described in detail here.

[0034] The above description in this specification is merely illustrative of the present invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not depart from the content of this specification or exceed the scope defined in the claims, all of which shall fall within the protection scope of this invention.

Claims

1. A multi-layer stacking device for a curing kiln, characterized in that, It includes a bottom conveying module, a vertical lifting module, and a top conveying module. The bottom conveying module is used to input pallets to the bottom of the vertical lifting module or to output pallets. The vertical lifting module is used to drive the pallets to rise and fall and lift the pallets one by one to form a multi-layer pallet stack. The top conveying module is used to output pallets from the top of the vertical lifting module or to input pallets.

2. The multi-layer stacking device for curing kilns according to claim 1, characterized in that: The bottom conveying module includes a conveyor housing, a first drive motor, several rollers, and two sets of chain belts. The rollers are rotatably mounted inside the conveyor housing, and the two sets of chain belts are respectively fitted onto two sets of roller wheels on the rollers. The first drive motor is fixedly mounted on the conveyor housing, and its output shaft is connected to a set of roller shafts to drive the chain belts to move the pallet.

3. The multi-layer stacking device for curing kilns according to claim 1, characterized in that: The vertical lifting module includes two sets of lifting units symmetrically arranged on both sides of the bottom conveying module and the top conveying module. Each lifting unit includes a lifting frame, a second drive motor, a bottom drive shaft, a top drive shaft, and three sets of chains. Both the bottom drive shaft and the top drive shaft are equipped with three sets of sprockets adapted to the chain drive. The output shaft of the second drive motor is connected to the bottom drive shaft through a transmission mechanism. Support plates for supporting the edges of the pallets are arranged at equal intervals on the outer side of the chains.

4. The multi-layer stacking device for curing kilns according to claim 1, characterized in that: The top conveying module includes a guide rail, a sliding base, and a clamping assembly. The guide rail is fixedly installed on the top of the curing kiln. The sliding base is connected and adapted to the guide rail and is equipped with a driving component for driving it to slide along the guide rail. The clamping assembly is used to clamp the front and rear ends of the tray.

5. The multi-layer stacking device for curing kilns according to claim 4, characterized in that: The clamping assembly includes a fixed plate and two sets of clamping units. The fixed plate is fixedly installed at the bottom of the sliding unit, and the two sets of clamping units are symmetrically arranged at both ends of the fixed plate. Each set includes a drive cylinder and a clamping plate. The drive cylinder is fixedly connected to the fixed plate through a cylinder seat. The clamping plate is connected and fixed to the piston rod of the drive cylinder and is provided with an extension for lifting the front and rear ends of the pallet.

6. The multi-layer stacking device for curing kilns according to claim 5, characterized in that: The clamping plate is also provided with several limiting posts, and the support plate has a limiting channel adapted to the limiting posts, and a slot is provided at the lower end of the limiting channel.

7. The multi-layer stacking device for curing kilns according to claim 5, characterized in that: The clamping plate is provided with guide posts at both ends, and the fixing plate is provided with guide grooves on both sides that are adapted to slide with the guide posts.

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