A horizontal elevator pneumatic unloading mechanism

Abstract

The utility model discloses a horizontal elevator pneumatic unloading mechanism, including by two side plates, upper cover plate and the half closed box body of baffle, be equipped with the unloading plate of cylinder drive in the box body, cylinder is installed in the outside of side plate through cylinder fixed base, and its push rod is welded with a connecting plate hinged, and the connecting plate welding drives connecting shaft welding rotation, to make the unloading plate fixed on it switch between high and low, still be installed on side plate upper and lower layer chain guide rail and bucket carrier plate, and the chain drives bucket to run in the guide rail. The utility model discloses through cylinder control unloading plate position, when guiding bucket to overturn unloading along its special curved surface in high, when bucket passes normally in low, has realized controllable unloading of horizontal elevator horizontal section any point, has solved the problem that traditional distribution mode wears greatly, and the layout is not flexible, and the control is inconvenient, has the advantages of compact structure, reliable action, wide adaptability, is favorable to nondestructive delivery.

Description

Technical Field

[0001] This utility model relates to the field of material conveying equipment technology, specifically a pneumatic unloading mechanism for a horizontal elevator. Background Technology

[0002] In integrated production lines for processing seeds, grains, and food, the lifting and horizontal conveying of materials are crucial links connecting various processes. Because such materials (such as seeds) are typically fragile and susceptible to contamination, high requirements are placed on conveying equipment that is free from breakage, has low wear, and is well-sealed.

[0003] Currently, bucket elevators are commonly used for vertical lifting on production lines, while belt conveyors or scraper conveyors are mostly used for horizontal conveying. However, when the process layout requires simultaneous lifting and horizontal conveying, especially when multiple unloading or material distribution points are needed at different workstations, the combination of these traditional equipment reveals several shortcomings: 1) Rigid layout and large space occupation: Bucket elevators can only achieve vertical lifting, and their inlet and outlet positions are fixed. If the inlet of subsequent equipment is not directly below or above it, secondary conveying by belt conveyors is necessary. This "elevator + belt conveyor" combination not only increases the number of devices, the floor space required, and the power consumption, but also results in a loose and non-compact production line layout, increasing factory construction and equipment investment costs.

[0004] 2) Inherent drawbacks of the material distribution scheme: For processes requiring cross-process material distribution or distribution to multiple devices, the existing conventional solution is to install T-junction distributors along the conveying path. Materials switch flow directions via these T-junction distributors. However, this scheme has significant problems: First, using multiple T-junction distributors in series leads to complex material conveying paths and longer pipelines, increasing material transport resistance and causing severe friction and frequent impacts between the material and the pipe walls. This significantly increases the breakage rate of fragile materials (such as coated seeds), seriously affecting product quality and yield. Second, material residue and blockages easily accumulate inside the pipelines, making cleaning difficult and increasing the risk of cross-contamination between different materials. Finally, this scheme relies on numerous auxiliary devices and pipelines, resulting in a cluttered and unsightly overall system appearance.

[0005] 3) Inability to achieve flexible and controllable multi-point unloading: Traditional bucket elevators have a fixed and singular unloading method, usually unloading centrally at the head of the machine, and cannot flexibly select specific locations for unloading according to instructions in the horizontal conveying section. To achieve multi-point unloading, multiple independent conveying lines are often required, which greatly increases the complexity and cost of the system.

[0006] To address the aforementioned issues, the industry has begun adopting horizontal elevators (also known as "clamping elevators" or "crush-free elevators"). This equipment uses a combination of buckets and chains, running within matching guide rails, enabling low-speed, stable conveying. It combines horizontal conveying and vertical lifting functions and can be flexibly arranged in Z, C, and T shapes, effectively reducing equipment space requirements and material breakage. However, integrating a compact, reliable, and flexible unloading mechanism into the horizontal section of this type of elevator, especially the head section, to enable rapid switching between multiple unloading points based on instructions and achieve precise and controllable material distribution, has become a key technical challenge. Most existing horizontal elevators lack this functional module, limiting their widespread application in highly automated, multi-process production lines.

[0007] Therefore, this utility model aims to address the shortcomings of the existing technology by providing a pneumatic unloading mechanism specifically for horizontal lifting machines, which achieves efficient, non-destructive, and controllable multi-point unloading functions in an integrated and modular manner. Utility Model Content

[0008] The purpose of this invention is to provide a pneumatic unloading mechanism for a horizontal elevator. This mechanism has a compact structure and can achieve flexible switching of unloading points through pneumatic control, solving the problem of multi-point material distribution without affecting the original layout and non-breakage characteristics of the elevator.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a pneumatic unloading mechanism for a horizontal lifting machine, comprising two opposing side plates, the upper parts of the two side plates being connected by an upper cover plate, and the two ends of the side plates being closed by a first blocking plate and a second blocking plate respectively. The first blocking plate is connected to the side plate, and the second blocking plate is connected to the side plate through a blocking plate connecting plate, thereby forming a semi-closed structure together with the upper cover plate; the two side plates are fixedly connected by welding with tie rods. A cylinder mounting base is installed on the side plate, and a cylinder is rotatably connected to the cylinder mounting base via a pin. The cylinder push rod is rotatably connected to one end of a connecting plate welded together. A connecting shaft assembly is fixedly connected to the other end of the connecting plate welded together. The two ends of the connecting shaft assembly are rotatably supported on the side plates on both sides via bearings with seats. A discharge plate that can swing with it is fixedly connected to the connecting shaft assembly. The side plate is also fixedly installed with an upper chain guide rail and a lower chain guide rail located above and below the unloading plate; the upper chain guide rail and the lower chain guide rail are fitted with chains, and buckets are connected to the chains; the side plate is also connected with an upper bucket support plate and a lower bucket support plate by means of support plate positioning sleeve bolts, and the upper bucket support plate and the lower bucket support plate are located at the upper and lower layers of the bucket running path, respectively; The cylinder drives the connecting plate to swing by extending and retracting the push rod, and then drives the unloading plate to switch between a high unloading position and a low non-unloading position through the connecting shaft assembly. When the unloading plate is in the high unloading position, it contacts the bucket that has moved there and guides it to flip and unload. When the unloading plate is in the low non-unloading position, it does not contact the bucket.

[0010] Preferably, the working surface of the unloading plate is a special curved surface, used to guide the bucket to rotate smoothly.

[0011] Preferably, the upper and lower bucket trays are in contact with the attachments on the bucket to prevent the bucket from shaking during operation.

[0012] Preferably, the cylinder is controlled by an electrical control system and is used to switch between multiple unloading points.

[0013] Preferably, the mechanism can be installed on the horizontal section of a Z-type, C-type, or T-type horizontal lifting machine.

[0014] The working principle of this utility model is as follows: The cylinder, through the extension and retraction of its push rod, drives the connecting plate to swing and weld together. This, in turn, rotates the connecting shaft assembly, ultimately switching the unloading plate fixed to it between a high unloading position and a low non-unloading position. When the unloading plate swings to the high position, the bucket traveling to this position contacts the plate and smoothly flips along its working surface (a special curved surface), achieving unloading. When the plate swings to the low position, the bucket passes over it without contact, does not flip, and continues forward. By controlling the cylinder's movement through an electrical program, unloading can be selectively performed at multiple unloading points on the horizontal elevator as needed.

[0015] The beneficial effects of this utility model are as follows: (1) This utility model achieves automation and rapid response of unloading operation by using a cylinder to drive the unloading plate to switch precisely between high and low positions. In the high position, the specially curved surface design of the unloading plate can smoothly guide the bucket to flip and complete the unloading action with small impact and high reliability; in the low position, the unloading plate completely avoids the bucket, and the bucket can run normally without obstruction. The two states can be switched flexibly and do not interfere with each other.

[0016] (2) This utility model adopts a modular design, has a compact structure, and can be easily integrated and installed on the horizontal section of a horizontal elevator with various layout forms such as Z-type, C-type, and T-type. By connecting multiple such mechanisms in series on a single elevator and cooperating with electrical program control, operators can easily and quickly switch the material flow direction between multiple unloading points according to production needs, which greatly enhances the layout flexibility and process adaptability of the production line.

[0017] (3) While achieving efficient and controllable multi-point unloading, this utility model inherits the core advantages of low-speed, stable, and non-breakable conveying of the horizontal elevator. Its application makes the equipment layout of the entire processing line more neat, compact, and beautiful, effectively reducing the problems of material breakage, cross-contamination, and large equipment footprint caused by traditional material distribution methods, and significantly improving production efficiency and product quality. Attached Figure Description

[0018] Figure 1 This is a front view of the pneumatic unloading mechanism of this utility model; Figure 2 This is a side view of the pneumatic unloading mechanism of this utility model; Figure 3 This is a cross-sectional view of the pneumatic unloading mechanism of this utility model; Figure 4 A schematic diagram of the assembly of a Z-type horizontal elevator equipped with three unloading mechanisms of this utility model; Figure 5 This is a schematic diagram of the bucket structure; Figure 6 This is a schematic diagram of the overall structure of the device of this utility model; In the diagram: 1. Side plate, 2. Top cover plate, 3. Tie bar welded, 4. First blocking plate, 5. Blocking plate connecting plate, 6. Bearing with seat, 7. Cylinder fixing seat, 8. Cylinder, 9. Connecting plate welded, 10. Second blocking plate, 11. Upper chain guide rail, 12. Pallet positioning sleeve, 13. Upper bucket pallet, 14. Lower chain guide rail, 15. Lower bucket pallet, 16. Unloading plate, 17. Connecting shaft assembly, 18. Chain, 19. Bucket. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings.

[0020] like Figures 1 to 3 As shown, the pneumatic unloading mechanism of this utility model has a main structure supported by side plates 1 on both sides. The two side plates 1 are connected by bolts to form a semi-enclosed box through an upper cover plate 2, a first blocking plate 4 at the front end, a second blocking plate 10 at the rear end, and a blocking plate connecting plate 5 connecting the blocking plates. The two side plates 1 are tightened and fixed together by tie rods welded together 3 to ensure overall rigidity.

[0021] The cylinder 8, which performs the action, is mounted on the outside of the side plate 1 via a cylinder mounting base 7. The tail of the cylinder 8 is connected to the cylinder mounting base 7 via a pin, allowing relative rotation. The end of the push rod of the cylinder 8 is also rotatably connected to one end of the connecting plate welded to 9 via a pin. The other end of the connecting plate welded to 9 is fixedly connected to the connecting shaft assembly 17. Both ends of the connecting shaft assembly 17 are mounted on the two side plates 1 via bearings with seats 6, allowing the connecting shaft assembly 17 to rotate. The unloading plate 16 is fixedly mounted on the connecting shaft assembly 17 and can swing accordingly.

[0022] The upper chain guide rail 11 and the lower chain guide rail 14, which guide the chain 18 and the bucket 19, are fixed to corresponding positions on the inside of the side plate 1 by bolts. The upper bucket support plate 13 and the lower bucket support plate 15, which stabilize the bucket 19, are positioned by the support plate positioning sleeve 12 and are bolted to the side plate 1.

[0023] During operation, after receiving a control signal, cylinder 8 extends or retracts its push rod, causing the connecting plate welding 9 to swing, thereby causing the unloading plate 16 to rotate around its axis via the connecting shaft assembly 17. Figure 4 As shown, multiple such unloading mechanisms can be installed side by side in the horizontal section of the Z-type horizontal elevator. When the cylinder 8 at a certain unloading point is activated, pushing the unloading plate 16 to a high position, the bucket 19 passing through that point will be guided to flip and unload; the unloading plates 16 at other unloading points are in a low position, and the buckets 19 pass through normally, thereby achieving selective unloading at any unloading point.

[0024] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, based on the technical teachings provided by this utility model and as common knowledge in the mechanical field, other equivalent modifications and improvements can be made, and these should also be considered within the scope of protection of this utility model.

Claims

1. A pneumatic unloading mechanism for a horizontal lifting machine, characterized in that: it includes two opposing side plates (1), the upper parts of the two side plates (1) are connected by an upper cover plate (2), the two ends of the side plates (1) are respectively closed by a first blocking plate (4) and a second blocking plate (10), the first blocking plate (4) is connected to the side plate (1), and the second blocking plate (10) is connected to the side plate (1) by a blocking plate connecting plate (5), thereby forming a semi-closed structure together with the upper cover plate (2); the two side plates (1) are fixedly connected by welding (3) with tie rods; A cylinder mounting base (7) is installed on the side plate (1), and a cylinder (8) is rotatably connected to the cylinder mounting base (7) via a pin. The push rod of the cylinder (8) is rotatably connected to one end of a connecting plate welded (9). A connecting shaft assembly (17) is fixedly connected to the other end of the connecting plate welded (9). The two ends of the connecting shaft assembly (17) are rotatably supported on the side plates (1) on both sides via bearings (6). A discharge plate (16) that can swing with it is fixedly connected to the connecting shaft assembly (17). The side plate (1) is also fixedly installed with an upper chain guide rail (11) and a lower chain guide rail (14) located above and below the unloading plate (16); a chain (18) is fitted inside the upper chain guide rail (11) and the lower chain guide rail (14), and a bucket (19) is connected to the chain (18); an upper bucket support plate (13) and a lower bucket support plate (15) are also bolted to the side plate (1) by means of a support plate positioning sleeve (12), and the upper bucket support plate (13) and the lower bucket support plate (15) are located on the upper and lower layers of the running path of the bucket (19), respectively; The cylinder (8) drives the connecting plate welding (9) to swing through the extension and retraction of the push rod, and then drives the unloading plate (16) to switch between the high unloading position and the low non-unloading position through the connecting shaft assembly (17); when the unloading plate (16) is in the high unloading position, it contacts the bucket (19) that has run there and guides it to flip and unload; when the unloading plate (16) is in the low non-unloading position, it does not contact the bucket (19).

2. The pneumatic unloading mechanism for a horizontal elevator according to claim 1, characterized in that: The working surface of the unloading plate (16) is a special curved surface, which is used to guide the bucket (19) to rotate smoothly.

3. A pneumatic unloading mechanism for a horizontal elevator according to claim 1 or 2, characterized in that: The upper bucket support plate (13) and the lower bucket support plate (15) are in contact with the attachments on the bucket (19) to prevent the bucket (19) from shaking during operation.

4. The pneumatic unloading mechanism for a horizontal elevator according to claim 3, characterized in that: The cylinder (8) is controlled by an electrical control system and is used to switch between multiple unloading points.

5. The pneumatic unloading mechanism for a horizontal elevator according to claim 4, characterized in that: This mechanism can be installed on the horizontal section of Z-type, C-type, or T-type horizontal lifting machines.

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