Damage-free feeding device for screening machine

Abstract

The utility model discloses a non-damage feeding device for a screening machine, which comprises a first vertical frame and a second vertical frame, a feeding device is arranged on the first vertical frame, a material guide device is arranged on the second vertical frame, the material guide device comprises a first lifting frame, a guide shell, a first connecting frame and a telescopic cylinder, a first multi-stage oil cylinder is arranged on the second vertical frame, and a second multi-stage oil cylinder is arranged on the second vertical frame. The feeding device has the advantages that the guide shell can rotate around the axis of the connecting shaft under the action of the telescopic air cylinder, and when the first discharging pipe is higher than the first feeding pipe, the guide shell can rotate around the axis of the connecting shaft; at the moment, the materials in the guide shell cannot be discharged along the first discharging pipe and enter an external screening machine to be screened, the materials in the guide shell cannot be extruded in the feeding starting process and the feeding stopping process, and then the materials can be prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of feeding equipment, and more particularly to a damage-free feeding device for a screening machine. Background Art

[0002] When processing small particles such as seeds, rice, or feed, screening machines are often used to grade them or to screen out dust and small particles. In order to avoid clogging on the screening machine, the feeding device is generally set to stage feeding. The most common way is to set a baffle at the discharge port of the feeding device. When feeding is not required, the baffle rotates and closes to block the discharge port. When feeding is required, the baffle rotates and opens, and the discharge port discharges normally, thus feeding the screening machine. However, when the baffle rotates and closes, the discharge port will continue to pass material. Therefore, the material often gets stuck between the baffle and the feeding device, causing damage to the material and resulting in certain economic losses.

[0003] For example, the utility model with publication number CN208679750U discloses a medicinal material classification and screening machine, in which a feed switch is provided at the discharge port of the feed hopper, and whether the discharge port is discharged can be controlled by opening and closing the feed switch. When the feed switch is closed, the feeding is stopped, but when the feed switch is closed, the material is easily clamped, thereby causing the material to be damaged. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model provides a damage-free feeding device for a screening machine to solve the technical problems mentioned in the background technology.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a damage-free feeding device for a screening machine, comprising a first upright frame and a second upright frame, the first upright frame being provided with a loading device, the second upright frame being provided with a material guiding device, the material guiding device comprising a first lifting frame, a guide shell, a first connecting frame and a telescopic cylinder, the second upright frame being provided with a first multi-stage oil cylinder, and the telescopic end of the first multi-stage oil cylinder being fixedly connected to the first lifting frame, the first lifting frame and the second upright frame being slidably connected, the first connecting frame being fixedly sleeved outside the guide shell, and both ends of the first connecting frame being provided with a connecting shaft, the connecting shaft and the first lifting frame being rotatably connected, the telescopic cylinder being hingedly arranged on the lower surface of the first lifting frame, and its telescopic end being hinged to the first connecting frame, the two ends of the guide shell being respectively connected with a first sealing plate and a second sealing plate, the first sealing plate being connected with a first feed pipe, and the second sealing plate being connected with a first discharge pipe.

[0006] The utility model is further configured as follows: the loading device includes a material storage shell and a second lifting frame, a second multi-stage oil cylinder is provided on the first vertical frame, and the telescopic end of the second multi-stage oil cylinder is fixedly connected to the lower surface of the second lifting frame, the second lifting frame is fixedly sleeved outside the material storage shell, and a third sealing plate is provided at the bottom of the material storage shell.

[0007] The present invention is further configured such that the lower surface of the third sealing plate is connected to a second discharge pipe, and a connecting hose is provided between the first feed pipe and the second discharge pipe.

[0008] The utility model is further configured such that an expansion mechanism is provided at the top end of the material storage shell, and the expansion mechanism includes a fixed plate, an expansion plate, a connecting seat and a connecting pin. Two of the expansion plate, the connecting seat and the connecting pin are provided, and the two connecting seats are symmetrically arranged on both sides of the material storage shell, and the two connecting pins are respectively fixedly connected to the two connecting seats, and the two expansion plates are respectively rotatably sleeved outside the two connecting pins.

[0009] The present invention is further configured such that two fixing plates are provided and are symmetrically arranged on both sides of the material storage shell.

[0010] The utility model is further configured such that a distributing cylinder is provided on the inner side of the top end of the material storage shell, the distributing cylinder is fixedly connected to the inner sides of the two fixed plates, and the distributing cylinder is fixedly connected to the inner sides of the two unfolding plates.

[0011] Compared with the prior art, the present invention provides a non-damaging feeding device for a screening machine, which has the following beneficial effects:

[0012] 1. The guide shell in the present invention can rotate around the axis of the connecting shaft under the action of the telescopic cylinder. When the first discharge pipe is higher than the first feed pipe, the material in the guide shell will not be discharged along the first discharge pipe and enter the external screening machine for screening. During the process of starting and stopping feeding, the material in the guide shell will not be squeezed, thereby avoiding damage to the material.

[0013] 2. In the present invention, an expansion mechanism is provided at the top of the material storage shell. When loading is required, the space at the top of the material storage shell can be expanded, making it easier for workers to introduce materials into the material storage shell, and then the materials are transported to the screening machine for screening through the feeding device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a damage-free feeding device for a screening machine in the present utility model;

[0015] Figure 2 for Figure 1 A structural diagram without the first stand and the second stand;

[0016] Figure 3 This is a schematic diagram of the connection structure of the material storage shell, the fixed plate and the expansion plate in the utility model;

[0017] Figure 4 This is a structural diagram of the present invention in which the expansion plate and the connecting pin are not connected.

[0018] In the figure: 1. First vertical frame; 2. Second vertical frame; 3. First lifting frame; 4. Guide shell; 5. First connecting frame; 6. Telescopic cylinder; 7. First multi-stage oil cylinder; 8. Connecting shaft; 9. First closing plate; 10. Second closing plate; 11. First feed pipe; 12. First discharge pipe; 13. Material storage shell; 14. Second lifting frame; 15. Second multi-stage oil cylinder; 16. Third closing plate; 17. Second discharge pipe; 18. Connecting hose; 19. Fixing plate; 20. Expanding plate; 21. Connecting seat; 22. Connecting pin; 23. Distributing cylinder. DETAILED DESCRIPTION

[0019] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0020] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0021] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually relative to the directions shown in the drawings, or relative to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually relative to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned direction words are not used to limit the present invention.

[0022] See also Figure 1-4A non-destructive feeding device for a screening machine includes a first upright frame 1 and a second upright frame 2. The first upright frame 1 is provided with a loading device, and the second upright frame 2 is provided with a material guiding device. The loading device includes a material storage housing 13 and a second lifting frame 14. The first upright frame 1 is provided with a second multi-stage oil cylinder 15, and the telescopic end of the second multi-stage oil cylinder 15 is fixedly connected to the lower surface of the second lifting frame 14. The second lifting frame 14 is fixedly mounted outside the material storage housing 13. The bottom of the material storage housing 13 is provided with a third sealing plate 16. The lower surface of the third sealing plate 16 is connected to a second discharge pipe 17. A connecting hose 18 is provided between the first feed pipe 11 and the second discharge pipe 17. The top of the storage housing 13 is equipped with an expansion mechanism, which includes a fixed plate 19, an expansion plate 20, a connecting seat 21, and a connecting pin 22. Two expansion plates 20, two connecting seats 21, and two connecting pins 22 are provided. The two connecting seats 21 are symmetrically arranged on either side of the storage housing 13, and the two connecting pins 22 are fixedly connected to the two connecting seats 21. The two expansion plates 20 are rotatably sleeved around the two connecting pins 22. Two fixed plates 19 are provided, and are symmetrically arranged on either side of the storage housing 13. A dispensing tube 23 is provided on the inside of the top of the storage housing 13. The dispensing tube 23 is fixedly connected to the inside of the two fixed plates 19, and the dispensing tube 23 is fixedly connected to the inside of the two expansion plates 20.

[0023] In this embodiment, the device is installed as a whole on one side of the external screening machine, and the material is poured into the storage shell 13 from the distribution drum 23 on the top of the storage shell 13 by manual or other equipment. At this time, the guide shell 4 is tilted, and the first discharge pipe 12 is higher than the first feed pipe 11 to prevent the material from being discharged directly through the first discharge pipe 12. When the material is loaded, the second multi-stage cylinder 15 is started to drive the second lifting frame 14 to move upward, and then drive the storage shell 13 to move upward. In this process, the first multi-stage cylinder 7 is started to drive the first lifting frame 3 to move upward, and then drive the guide shell 4 to move upward until the whole moves to the top of the external screening machine.

[0024] See also Figure 1-4 As an embodiment of the material guiding device: the material guiding device includes a first lifting frame 3, a guide shell 4, a first connecting frame 5 and a telescopic cylinder 6. The second vertical frame 2 is provided with a first multi-stage oil cylinder 7, and the telescopic end of the first multi-stage oil cylinder 7 is fixedly connected to the first lifting frame 3, the first lifting frame 3 and the second vertical frame 2 are slidingly connected, the first connecting frame 5 is fixedly sleeved outside the guide shell 4, and both ends of the first connecting frame 5 are provided with a connecting shaft 8, the connecting shaft 8 and the first lifting frame 3 are rotatably connected, the telescopic cylinder 6 is hingedly arranged on the lower surface of the first lifting frame 3, and its telescopic end is hinged to the first connecting frame 5, and the two ends of the guide shell 4 are respectively connected with a first sealing plate 9 and a second sealing plate 10, the first sealing plate 9 is connected to a first feeding pipe 11, and the second sealing plate 10 is connected to a first discharging pipe 12.

[0025] More specifically, when loading is required, the telescopic cylinder 6 is started to extend, driving the first connecting frame 5 and the guide shell 4 to rotate around the axis of the connecting shaft 8, so that the height of the first discharge pipe 12 is lowered and the height of the first feed pipe 11 is increased. In this process, the second multi-stage oil cylinder 15 is started to extend, driving the storage shell 13 to continue to move upward, so that the second discharge pipe 17 at the bottom of the third sealing plate 16 is higher than the height of the first feed pipe 11 on the first sealing plate 9, thereby facilitating the material in the storage shell 13 to pass through the connecting hose 18 into the guide shell 4, and finally be discharged from the first discharge pipe 12 on the second sealing plate 10 and enter the external screening machine for screening.

[0026] In summary, when the overall equipment is in use or running: the device is installed as a whole on one side of the external screening machine, and the material is poured from the distribution drum 23 at the top of the storage shell 13 into the storage shell 13 by manual or other equipment. At this time, the guide shell 4 is tilted, and the first discharge pipe 12 is higher than the first feed pipe 11 to avoid the material being discharged directly through the first discharge pipe 12. When the material is loaded, the second multi-stage cylinder 15 is started to drive the second lifting frame 14 to move upward, and then drive the storage shell 13 to move upward. In this process, the first multi-stage cylinder 7 is started to drive the first lifting frame 3 to move upward, and then drive the guide shell 4 to move upward until the whole moves to the top of the external screening machine.

[0027] When loading is required, the telescopic cylinder 6 is started to extend, driving the first connecting frame 5 and the guide shell 4 to rotate around the axis of the connecting shaft 8, so that the height of the first discharge pipe 12 is lowered and the height of the first feed pipe 11 is increased. In this process, the second multi-stage oil cylinder 15 is started to extend, driving the storage shell 13 to continue to move upward, so that the second discharge pipe 17 at the bottom of the third sealing plate 16 is higher than the height of the first feed pipe 11 on the first sealing plate 9, thereby facilitating the material in the storage shell 13 to pass through the connecting hose 18 into the guide shell 4, and finally discharged from the first discharge pipe 12 on the second sealing plate 10, and enter the external screening machine for screening.

[0028] In all the schemes mentioned above, the connection between the two components can be selected according to actual conditions by welding, bolt and nut connection, bolt or screw connection or other well-known connection methods, which will not be listed here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A non-damaging feeding device for a screening machine, comprising a first stand (1) and a second stand (2), wherein the first stand (1) is provided with a feeding device, and the second stand (2) is provided with a material guiding device, wherein: The material guiding device comprises a first lifting frame (3), a guide housing (4), a first connecting frame (5) and a telescopic cylinder (6); a first multi-stage oil cylinder (7) is provided on the second vertical frame (2), and the telescopic end of the first multi-stage oil cylinder (7) is fixedly connected to the first lifting frame (3); the first lifting frame (3) and the second vertical frame (2) are slidably connected; the first connecting frame (5) is fixedly sleeved outside the guide housing (4), and both ends of the first connecting frame (5) are provided with connecting shafts (8); the connecting shafts (8) and the first lifting frame (3) are rotatably connected; the telescopic cylinder (6) is hingedly arranged on the lower surface of the first lifting frame (3), and its telescopic end is hingedly connected to the first connecting frame (5); the two ends of the guide housing (4) are respectively connected with a first sealing plate (9) and a second sealing plate (10); the first sealing plate (9) is connected with a first feeding pipe (11), and the second sealing plate (10) is connected with a first discharging pipe (12).

2. A non-damaging feeding device for a screening machine according to claim 1, characterized in that: The loading device comprises a material storage shell (13) and a second lifting frame (14), wherein a second multi-stage oil cylinder (15) is provided on the first vertical frame (1), and the telescopic end of the second multi-stage oil cylinder (15) is fixedly connected to the lower surface of the second lifting frame (14), and the second lifting frame (14) is fixedly sleeved outside the material storage shell (13), and a third sealing plate (16) is provided at the bottom of the material storage shell (13).

3. A non-damaging feeding device for a screening machine according to claim 2, characterized in that: The lower surface of the third sealing plate (16) is connected to a second discharge pipe (17), and a connecting hose (18) is provided between the first feed pipe (11) and the second discharge pipe (17).

4. A non-damaging feeding device for a screening machine according to claim 2, characterized in that: An expansion mechanism is provided at the top of the material storage shell (13), and the expansion mechanism includes a fixed plate (19), an expansion plate (20), a connecting seat (21) and a connecting pin (22). Two of the expansion plates (20), the connecting seat (21) and the connecting pin (22) are provided. The two connecting seats (21) are symmetrically arranged on both sides of the material storage shell (13), and the two connecting pins (22) are fixedly connected to the two connecting seats (21) respectively. The two expansion plates (20) are rotatably sleeved outside the two connecting pins (22).

5. A damage-free feeding device for a screening machine according to claim 4, characterized in that: Two fixing plates (19) are provided and are symmetrically arranged on both sides of the material storage housing (13).

6. A non-damaging feeding device for a screening machine according to claim 5, characterized in that: A distributing cylinder (23) is provided on the inner side of the top end of the material storage shell (13), and the distributing cylinder (23) is fixedly connected to the inner sides of the two fixing plates (19), and the distributing cylinder (23) is fixedly connected to the inner sides of the two unfolding plates (20).

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