Multi-stage screening device

Abstract

The utility model relates to the technical field of screening devices, in particular to a multi-stage screening device which comprises a multi-stage screening machine body, a bag hanging assembly is arranged at a discharging port of the multi-stage screening machine body, the bag hanging assembly comprises a fixing pipe connected to the discharging port, and the bottom end of the fixing pipe is connected with a guide pipe. A plurality of positioning pieces are rotationally connected to the exterior of the guide pipe in the circumferential direction, a positioning ring is slidably connected to the exterior of the fixing pipe, sliding ways are symmetrically arranged on the fixing pipe, an inner sleeve ring is elastically connected to the interior of the positioning ring, a locking rod penetrates through the upper portion of one side of the positioning ring in a threaded mode, and a locking hole matched with the locking rod is formed in the lower portion of the fixing pipe. Therefore, the packaging bag can be rapidly and efficiently fixed to the discharging opening, a binding rope does not need to be prepared independently, the installation time is saved, and the installation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of screening devices, in particular to a multi-stage screening device. Background Art

[0002] Burdock, also known as rat sticky grass, has extremely high nutritional and health value. It is rich in protein, fat, carbohydrates, multiple vitamins and multiple trace elements such as calcium, phosphorus, iron, copper, zinc, etc. At the same time, because it also has the health functions of promoting blood circulation, preventing stroke, treating constipation, lowering blood sugar and losing weight, the processed products of burdock are mainly burdock powder, canned burdock, burdock sauce, burdock tea, etc., among which screening devices are usually required in the production process of burdock powder.

[0003] At present, the existing screening devices, such as the Chinese patent with publication number CN115445920B, disclose a circular rocking screen feeding structure, including a rocking screen body, a feeding unit, the feeding unit is connected to the rocking screen body, the feeding unit is used for automatic intermittent feeding, and controls the material to be periodically and evenly fed, the feeding unit includes a support frame, the support frame is arranged on one side of the rocking screen, and a material box is arranged on the support frame, and an intermittent feeding assembly, the intermittent feeding assembly includes a rotating disk for feeding, a toggle lever for toggling the rotating disk to rotate and feed, and the toggle lever is used for the rotating disk to periodically and intermittently feed materials into the rocking screen body; and uniformly Uniform dispersion component, the uniform dispersion component includes a dispersion plate, the dispersion plate is connected to the support frame through a connecting frame, the dispersion plate is used to receive the unloading material and evenly put it into the swing screen body during the transfer of the material, the stirring unit, the stirring unit is connected to the intermittent unloading component, and the stirring unit is used to spread the material that falls into the swing screen and clean the side wall, and the flip plate can be used to further move the unloaded material up and down so that it can be evenly laid in the swing screen body, thereby facilitating the swing screen body to screen the material. However, during the above use, it is necessary to manually tie the packaging bag to the unloading port, which not only requires separate preparation of the binding rope, but also wastes time.

[0004] How to quickly and efficiently fix the packaging bag at the feeding port without having to prepare separate binding ropes, saving installation time and improving installation efficiency has become a technical problem that needs to be broken through.

[0005] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0006] In view of the above-mentioned defects, the purpose of the utility model is to provide a multi-stage screening device, which has a simple structure, is easy to use, can quickly and efficiently fix the packaging bag at the discharge port, and does not require separate preparation of binding ropes, thus saving installation time and improving installation efficiency.

[0007] To achieve the above object, the utility model provides a multi-stage screening device, including a multi-stage screening machine body. A hanging bag assembly is arranged at the blanking port of the multi-stage screening machine body. The hanging bag assembly includes a fixed pipe connected to the blanking port. The bottom end of the fixed pipe is connected to a guiding pipe. A plurality of positioning members are rotationally connected to the outer circumference of the guiding pipe. A positioning ring is slidably connected to the outside of the fixed pipe. Slideways are symmetrically arranged on the fixed pipe. An inner sleeve ring is elastically connected inside the positioning ring. A locking rod is threadedly inserted through the upper part of one side of the positioning ring. A locking hole cooperating with the locking rod is arranged at the lower part of the fixed pipe.

[0008] In the multi-stage screening device according to the utility model, one end of the inner sleeve ring close to the positioning ring is inserted into the positioning ring. Insert blocks are symmetrically arranged on the inner sleeve ring inside the positioning ring. Slots cooperating with the insert blocks are arranged inside the positioning ring. Elastic members are arranged between the insert blocks and the slots.

[0009] In the multi-stage screening device according to the utility model, the elastic member is a spring.

[0010] In the multi-stage screening device according to the utility model, the guiding pipe is a hollow frustum structure, and the cross-sectional area of the top end of the guiding pipe is smaller than that of its bottom end.

[0011] In the multi-stage screening device according to the utility model, torsion springs are arranged between the positioning members and the guiding pipe.

[0012] In the multi-stage screening device according to the utility model, sliding blocks are symmetrically arranged on the inner wall of the upper part of the positioning ring. The sliding blocks are all slidably arranged in the slideways. The slideways include horizontal slideways and vertical slideways.

[0013] In the multi-stage screening device according to the utility model, an anti-slip ring is arranged at one end of the inner sleeve ring close to the guiding pipe.

[0014] The purpose of the utility model is to provide a multi-stage screening device, including a positioning ring. Structures such as the positioning ring and the guiding pipe cooperate with each other, and can quickly and efficiently fix the packaging bag at the blanking port, without the need to separately prepare binding ropes, saving installation time and improving installation efficiency; adopting a double-fixing method of the positioning member and the positioning ring to ensure the stable fixation of the packaging bag; an anti-slip ring is arranged at one end of the inner sleeve ring close to the guiding pipe, and the anti-slip ring can increase the friction between the inner sleeve ring and the packaging bag; insert blocks are symmetrically arranged on the inner sleeve ring inside the positioning ring, slots cooperating with the insert blocks are arranged inside the positioning ring, and elastic members are arranged between the insert blocks and the slots. The elastic members enable the relative positions of the positioning ring and the inner sleeve ring to be adjustable, ensuring that the inner sleeve ring clamps the packaging bag tightly. In summary, the beneficial effects of the utility model are: it can quickly and efficiently fix the packaging bag at the blanking port, and does not require separately preparing binding ropes, saving installation time and improving installation efficiency. Description of the Drawings

[0015] Figure 1 This is the structural diagram of the utility model;

[0016] Figure 2 is Figure 1 the enlarged view of part A in;

[0017] Figure 3 the longitudinal sectional view at the inner sleeve ring;

[0018] In the figure: 1 - the main body of the multi-stage screening machine, 11 - the feeding port, 2 - the hanging bag assembly, 21 - the fixed pipe, 211 - the slideway, 22 - the guiding pipe, 23 - the positioning member, 24 - the positioning ring, 241 - the inner sleeve ring, 242 - the anti-slip ring, 25 - the locking rod, 3 - the elastic member. Specific embodiments

[0019] In order to make the purpose, technical solutions and advantages of the utility model more clear and understandable, the following further details the utility model in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0020] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0021] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "provided with", "sheathed / connected", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection, can be a mechanical connection, can be an electrical connection, can be directly connected, or can be indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0022] See Figures 1 to 3, the present utility model provides a multi-stage screening device, including a multi-stage screening machine body 1 (the multi-stage screening machine body 1 is the same as the prior art and is a mature prior art in the field, and its specific structure and function will not be elaborated here). A hanging bag assembly 2 is provided at the feeding port 11 of the multi-stage screening machine body 1. The hanging bag assembly 2 includes a fixed pipe 21 connected to the feeding port 11. The fixed pipe 21 communicates with the feeding port 11. The bottom end of the fixed pipe 21 is connected to a guiding pipe 22. The guiding pipe 22 is a hollow frustum structure, and the cross-sectional area of its top end is smaller than that of its bottom end. The guiding pipe 22 communicates with the fixed pipe 21. A plurality of positioning members 23 are rotatably connected to the outside of the guiding pipe 22 along the circumferential direction. A torsion spring is provided between each positioning member 23 and the guiding pipe 22. A positioning ring 24 is slidably connected to the outside of the fixed pipe 21.

[0023] See Figures 1 to 3 , sliding grooves 211 are symmetrically provided on the fixed pipe 21. The sliding grooves 211 are in an inverted "L" shape structure, including a horizontal sliding groove and a vertical sliding groove. The positioning ring 24 is slidably arranged in the sliding grooves 211 (sliders are symmetrically provided on the inner wall of the upper part of the positioning ring 24, and the sliders are all slidably arranged in the sliding grooves 211). An inner sleeve ring 241 is elastically connected inside the positioning ring 24 (one end of the inner sleeve ring 241 close to the positioning ring 24 is inserted into the positioning ring 24. Insert blocks are symmetrically provided on the inner sleeve ring 241 in the positioning ring 24. Slots cooperating with the insert blocks are provided inside the positioning ring 24. Elastic members 3 are provided between the insert blocks and the slots). The elastic members 3 enable the relative positions of the positioning ring 24 and the inner sleeve ring 241 to be adjustable. No matter what the specification of the fixed packaging bag is, the elastic members 3 can ensure that the inner sleeve ring 241 clamps the packaging bag tightly. A locking rod 25 is threadedly penetrated through the upper part of one side of the positioning ring 24, and a locking hole cooperating with the locking rod 25 is provided in the lower part of the fixed pipe 21.

[0024] See Figures 1 to 3 , the elastic member 3 is a spring, providing a return power.

[0025] See Figures 1 to 3 , an anti-slip ring 242 is provided at one end of the inner sleeve ring 241 close to the guiding pipe 22. The anti-slip ring 242 has a certain deformation ability (such as a rubber ring). The anti-slip ring 242 can increase the friction between the inner sleeve ring 241 and the packaging bag.

[0026] See Figures 1 to 3, when fixing the packaging bag, slide the positioning ring 24 upward. When the slider abuts against the inner top wall of the longitudinal slideway, rotate the positioning ring 24 to make the slider slide into the transverse slideway until the slider abuts against the inner wall of the transverse slideway far from the longitudinal slideway, then the packaging bag can be hung. Put the opening of the packaging bag onto the guiding tube 22, fold the opening of the packaging bag so that the opening of the packaging bag closely adheres to the guiding tube 22, and use the positioning member 23 to fix the opening of the packaging bag on the guiding tube 22. Rotate the positioning ring 24 to make the slider slide into the longitudinal slideway, and slide the positioning ring 24 downward along the longitudinal slideway until the anti-slip ring 242 abuts against the packaging bag on the guiding tube 22. Continue to slide the positioning ring 24 downward (at this time, the inner sleeve ring 241 presses the elastic member 3) until the anti-slip ring 242 clamps the packaging bag tightly. At this time, the locking rod 25 is exactly opposite to the locking hole. Rotate the locking rod 25 to make the locking rod 25 cooperate with the locking hole, and the fixation of the packaging bag is completed.

[0027] The utility model provides a multi-stage screening device, which includes a positioning ring. The positioning ring and the guiding tube and other structures cooperate with each other, and can quickly and efficiently fix the packaging bag at the material outlet. There is no need to separately prepare a binding rope, which saves the installation time and improves the installation efficiency; the double fixation method of the positioning member and the positioning ring is adopted to ensure the stable fixation of the packaging bag; an anti-slip ring is provided at one end of the inner sleeve ring close to the guiding tube, and the anti-slip ring can increase the friction between the inner sleeve ring and the packaging bag; insertion blocks are symmetrically arranged on the inner sleeve ring in the positioning ring, and slots matching with the insertion blocks are arranged inside the positioning ring. Elastic members are arranged between the insertion blocks and the slots, and the elastic members enable the relative positions of the positioning ring and the inner sleeve ring to be adjustable, ensuring that the inner sleeve ring clamps the packaging bag tightly. In summary, the beneficial effects of the utility model are: it can quickly and efficiently fix the packaging bag at the material outlet, and there is no need to separately prepare a binding rope, which saves the installation time and improves the installation efficiency.

[0028] Certainly, the utility model can also have many other embodiments. Without departing from the spirit and essence of the utility model, those skilled in the art can make various corresponding changes and deformations according to the utility model. However, these corresponding changes and deformations should all fall within the protection scope of the appended claims of the utility model.

Claims

1. A multi-stage screening device, characterized in that: The multi-stage screening machine body comprises a bag hanging assembly at a feeding port of the multi-stage screening machine body, the bag hanging assembly comprises a fixed pipe connected to the feeding port, the bottom end of the fixed pipe is connected to a guide pipe, the outer part of the guide pipe is connected to a plurality of positioning members in a circumferentially rotatable manner, and the outer part of the fixed pipe is connected to a positioning ring in a slidable manner; The fixing tube is symmetrically provided with slideways, the positioning ring is elastically connected with an inner sleeve ring, a locking rod is threadedly penetrated through an upper portion of one side of the positioning ring, and a locking hole cooperating with the locking rod is provided at the lower portion of the fixing tube.

2. The multi-stage screening device according to claim 1, characterized in that: One end of the inner ring close to the positioning ring is inserted into the positioning ring, and plug blocks are symmetrically arranged on the inner ring inside the positioning ring. A slot matching the plug block is arranged inside the positioning ring, and an elastic piece is arranged between the plug block and the slot.

3. The multi-stage screening device according to claim 2, characterized in that: The elastic member is a spring.

4. The multi-stage screening device according to claim 1, characterized in that: The guide tube is a hollow truncated cone structure, and the cross-sectional area of ​​the top end of the guide tube is smaller than the cross-sectional area of ​​the bottom end thereof.

5. The multi-stage screening device according to claim 1, characterized in that: A torsion spring is arranged between the positioning member and the guide tube.

6. The multi-stage screening device according to claim 1, characterized in that: Slide blocks are symmetrically arranged on the inner wall of the upper part of the positioning ring. The slide blocks are all slidably arranged in the slideways. The slideways include a transverse slideway and a longitudinal slideway.

7. The multi-stage screening device according to claim 1, characterized in that: An anti-slip ring is arranged on one end of the inner sleeve ring close to the guide tube.

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