Feeding device of powder packaging machine

Abstract

The utility model discloses a powder packaging machine feeding device which comprises a packaging bin, a rotary discharging valve and a buffering hopper which are sequentially connected, the bottom of the buffering hopper is connected with a packaging machine, an exhaust port is formed in the top end of the buffering hopper, a detachable exhaust port cloth bag is installed at the exhaust port, and an arch breaking cone is arranged on the upper portion in the buffering hopper. The arch breaking cone is located under the rotary discharging valve, an observation opening, an upper material level meter and a lower material level meter are arranged on the side face of the buffering hopper, a compressed air pipeline is arranged at the bottom of the outer portion of the buffering hopper, and the tail end of the compressed air pipeline is connected with a purging pipeline. Compared with the prior art, the utility model can effectively solve the problems of idle running and overload of the packaging machine caused by non-uniform and non-smooth material supply, realizes continuous, stable and efficient packaging of materials through the time relay, the arch breaking cone and the internal material purging function, and greatly improves the packaging efficiency and the packaging precision.

Description

Technical Field

[0001] The utility model belongs to the technical field of powder packaging machines, and in particular relates to a feeding device for a powder packaging machine. Background Art

[0002] Light calcium carbonate, also known as precipitated calcium carbonate, is referred to as light calcium. Light calcium carbonate is produced by chemical processing methods. Its sedimentation volume is larger than that of heavy calcium carbonate produced by mechanical methods, so it is called light calcium carbonate. Light calcium carbonate has a wide range of uses. It can be used as a filler in industries such as rubber, plastics, papermaking, coatings and inks, and can also be used in organic synthesis, metallurgy, glass and asbestos production.

[0003] Light calcium carbonate is usually packaged in a two-mouth or three-mouth packaging machine. The upper part of the packaging machine is equipped with a buffer hopper. The packaging process consists of a packaging bin, a buffer hopper and a packaging machine. The calcium carbonate material enters the buffer hopper through the packaging bin and directly enters the packaging machine for packaging. During this process, the material is not evenly discharged, and there is often bias or extrusion in the buffer hopper, which causes poor packaging discharge, and then causes the packaging machine to run idle or overload, affecting the continuous and stable operation of production. In addition, due to the characteristics of light calcium carbonate, the inner wall of the buffer hopper will have calcium carbonate adhesion, which needs to be cleaned from time to time, but the current buffer hopper device needs to be disassembled for cleaning, which is difficult to clean.

[0004] In view of this, it is indeed necessary to provide a feeding device for a light calcium carbonate packaging machine that can solve the above-mentioned problems. Summary of the invention

[0005] Based on the deficiencies in the prior art mentioned in the above background technology, the purpose of the utility model is to provide a feeding device for a powder packaging machine to solve the problems of unstable feeding of the packaging machine such as poor discharge and calcium carbonate adhering to the inner wall of the hopper.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a feeding device for a powder packaging machine, comprising a packaging bin, a rotary discharge valve and a buffer hopper connected in sequence, the bottom of the buffer hopper is connected to the packaging machine, the top of the buffer hopper is provided with an exhaust port, the exhaust port is equipped with a detachable exhaust port bag, the upper inner part of the buffer hopper is provided with an arch breaking cone, the arch breaking cone is located directly below the rotary discharge valve, the side of the buffer hopper is provided with an observation port, an upper material level meter and a lower material level meter, the outer bottom of the buffer hopper is provided with a compressed air pipeline, and the end of the compressed air pipeline is connected to a purge pipeline.

[0007] Furthermore, the purge pipeline is fixed on the buffer hopper by oblique welding from top to bottom.

[0008] Furthermore, the connection angle between the purge pipeline and the buffer hopper is 20° to 75°.

[0009] Further, there are three purge pipelines, and the packaging machine is provided with three discharge ports. The outlets of the purge pipelines are respectively facing the discharge ports inside the packaging machine for purging the discharge ports.

[0010] Further, a pulse valve is installed on each purge pipeline.

[0011] Further, the pulse valves are commonly connected to a time relay.

[0012] Further, the buffer hopper is connected to the packaging machine through a flange.

[0013] Further, the buffer hopper is any one of a trapezoidal structure, a cuboid structure, and a cube structure.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. By providing a buffer hopper device before the packaging of the packaging machine and arranging an arch-breaking cone inside the buffer hopper, the material is dispersed to the periphery of the buffer hopper through the arch-breaking cone and evenly falls to the bottom of the hopper. The material level can be controlled to be constant through the level gauge and the rotary discharge valve, avoiding the idling or overloading operation of the packaging machine, and realizing the continuous cyclic packaging of the material.

[0016] 2. By arranging an exhaust port cloth bag on the buffer hopper, the air pressure generated inside the buffer hopper is continuously discharged through the exhaust port cloth bag, realizing the constant pressure inside the buffer hopper and ensuring the stability of the packaging speed and the weight of the packaging bag.

[0017] 3. By arranging a compressed air pipeline, a pulse valve, a time relay, and an observation port on the buffer hopper, the pulse valve is opened at a set time to realize the intermittent purging of the internal material by the compressed air, preventing the phenomenon of unsmooth packaging discharge caused by the extrusion of the material inside the buffer hopper, and the situation of the material inside the buffer hopper can be timely detected through the observation port.

[0018] 4. When internal cleaning is required, only the observation port, the level gauge, or the exhaust port cloth bag needs to be removed to realize the cleaning of the internal accumulated material, making the cleaning more efficient and convenient, reducing the labor intensity, and improving the production efficiency. Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the overall structure of a feeding device of a powder packaging machine of the present utility model;

[0020] Figure 2 It is a left view of a feeding device of a powder packaging machine of the present utility model.

[0021] In the figure: 1, packaging bin; 2, rotary blanking valve; 3, buffer hopper; 4, exhaust port; 5, exhaust port cloth bag; 6, arch breaking cone; 7, observation port; 8, upper level gauge; 9, lower level gauge; 10, compressed air pipeline; 11, purging pipeline; 12, pulse valve; 13, time relay; 14, flange; 15, packaging machine; 16, discharge port. Detailed implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Refer to Figure 1 and Figure 2 As shown, the present invention provides a feeding device for a powder packaging machine, that is, a feeding device for a light calcium carbonate packaging machine, including a packaging bin 1, a rotary blanking valve 2 and a buffer hopper 3 connected in sequence. The bottom of the buffer hopper 3 is connected to the packaging machine 15 through a flange 14. An exhaust port 4 is provided at the top of the buffer hopper 3, and a detachable exhaust port cloth bag 5 is installed at the exhaust port 4. An arch breaking cone 6 is provided in the upper part of the buffer hopper 3, and the arch breaking cone 6 is located directly below the rotary blanking valve 2. An observation port 7, an upper level gauge 8 and a lower level gauge 9 are provided on the side of the buffer hopper 3. A compressed air pipeline 10 is provided at the bottom outside the buffer hopper 3, and the end of the compressed air pipeline 10 is connected to a purging pipeline 11.

[0024] The buffer hopper 3 is usually in a trapezoidal structure, and can also be in a cuboid, cube or other shape structures. The arch breaking cone 6 is in a conical structure and is fixed to the upper part inside the buffer hopper 3 by welding and is located directly below the rotary blanking valve 2. By setting the arch breaking cone 6, the material coming down from the packaging bin 1 is adjusted by the rotary blanking valve 2 and then falls onto the arch breaking cone 6, and the material can be dispersed to the surrounding of the buffer hopper 3, making the material dispersion more uniform.

[0025] The rotary blanking valve 2 is a blanking valve that can be purchased on the market. By setting the rotary blanking valve 2, the pressure difference between the packaging bin 1 and the buffer hopper 3 is ensured to be stable, so that the packaging bin 1 can supply materials to the buffer hopper 3 evenly and continuously.

[0026] The exhaust port 4 is a protruding structure, and its protruding part is adjusted according to needs, which is convenient for installing or tying the exhaust port cloth bag 5 to achieve the detachable of the exhaust port cloth bag 5.

[0027] The purging pipeline 11 is fixedly welded to the buffer hopper 3 by obliquely inserting and welding from top to bottom. The connection angle between the purging pipeline 11 and the buffer hopper 3 is 20° - 75°, preferably 30° - 60°, and more preferably 45° - 60°. In the embodiment of the present utility model, the connection angle between the purging pipeline 11 and the buffer hopper 3 is set at 45°.

[0028] In the embodiment of the present utility model, there are three purging pipelines 11, and the packaging machine 15 is provided with three discharge ports 16. The outlets of the purging pipelines 11 are respectively facing the discharge ports 16 inside the packaging machine 15 for purging the discharge ports 16.

[0029] Each purging pipeline 11 is equipped with a pulse valve 12. The pulse valves 12 are commonly connected to a time relay 13. The opening and closing of the pulse valves 12 are controlled by the time relay 13. By setting the time to open the pulse valves 12, intermittent purging of the internal materials of the buffer hopper 3 by compressed air is realized, preventing the phenomenon of unsmooth packaging and discharging caused by the extrusion of materials in the buffer hopper 3.

[0030] In other embodiments of the present utility model, the purging pipeline 11 can have only 1 path, or can have 2 paths, 4 paths, 5 paths or more paths. The corresponding discharge ports 16 of the packaging machine 15 are 1, 2, 4, 5 or more. The outlets of the purging pipelines 11 are respectively facing the discharge ports 16 inside the packaging machine 15 for purging the discharge ports 16.

[0031] The buffer hopper 3 is connected to the packaging machine 15 through a flange 14, which is convenient for quick disassembly and installation. In the embodiment of the present utility model, the observation port 7 is opened in the upper part of the side of the buffer hopper 3, and its opening size is adjusted according to needs. During normal operation, it is blocked by a flange cover or a blind plate. When observing, only the flange cover or the blind plate needs to be removed to observe the internal situation of the buffer hopper 3.

[0032] In the embodiment of the present utility model, the upper level gauge 8 is installed in the upper middle part of the side of the buffer hopper 3 and is located below the observation port 7. The lower level gauge 9 is located in the lower part of the buffer hopper 3. The upper level gauge 8 and the lower level gauge 9 are used to measure the upper and lower material levels in the buffer hopper 3.

[0033] The observation port 7, the upper level gauge 8 and the lower level gauge 9 can be arranged on the same side, or can be arranged on different sides. The positions of the observation port 7, the upper level gauge 8 and the lower level gauge 9 can also be adjusted on the side of the buffer hopper 3 according to needs.

[0034] Working principle: The finished light calcium carbonate enters the packaging bin 1 and is continuously and smoothly conveyed into the buffer hopper 3 through the rotary feeder valve 2. First, the material is dispersed to the periphery of the buffer hopper 3 by the arch-breaking cone 6, and then evenly falls to the bottom of the buffer hopper 3. Before the material level reaches the position of the upper level gauge 8, the rotary feeder valve 2 continuously conveys the material into the buffer hopper 3. When the material level reaches the position of the upper level gauge 8, the rotary feeder valve 2 stops conveying the material into the buffer hopper 3, and the packaging machine 15 starts to package the material. When the material in the buffer hopper 3 reaches the position of the lower level gauge 9, the rotary feeder valve 2 starts to convey the material into the buffer hopper 3. This process avoids the phenomena of the packaging machine idling and overloading caused by uneven and unsmooth material feeding, and realizes the continuous cyclic packaging of the material. The air pressure generated in the buffer hopper 3 is continuously discharged through the exhaust port cloth bag 5 to keep the pressure in the buffer hopper 3 constant and ensure the stability of the packaging speed and the weight of the packaging bag. A compressed air pipeline 10 is installed at the outer bottom of the buffer hopper 3. The three-way purge pipelines 11 connected to the compressed air pipeline 10 are respectively facing the discharge port 16 in the packaging machine 15. A pulse valve 12 is installed on each purge pipeline 11, and the opening and closing of the pulse valve 12 are controlled by a time relay 13. By setting the time to open the pulse valve 12, compressed air is used to purge the material inside the buffer hopper 3 to prevent the phenomenon of unsmooth packaging and discharging caused by the extrusion of the material in the buffer hopper 3. The state of the material in the buffer hopper 3 is observed through the observation port 7. When the inside of the buffer hopper 3 needs to be cleaned, the accumulated material inside the buffer hopper 3 can be cleaned by removing the exhaust port cloth bag 5, the observation port 7, the upper level gauge 8, and the lower level gauge 9, realizing the efficient cleaning function.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A feeding device for a powder packaging machine, characterized in that: It includes a packaging bin (1), a rotary feeder valve (2) and a buffer hopper (3) connected in sequence. The bottom of the buffer hopper (3) is connected to a packaging machine (15). An exhaust port (4) is provided at the top of the buffer hopper (3), and a detachable exhaust port cloth bag (5) is installed at the exhaust port (4). A material arch breaking cone (6) is provided in the upper part of the buffer hopper (3), and the material arch breaking cone (6) is located directly below the rotary feeder valve (2). An observation port (7), a high-level meter (8) and a low-level meter (9) are provided on the side of the buffer hopper (3). A compressed air pipeline (10) is provided at the bottom outside the buffer hopper (3), and the end of the compressed air pipeline (10) is connected to a purging pipeline (11).

2. The feeding device of a powder packaging machine according to claim 1, characterized in that: The purging pipeline (11) is fixedly welded to the buffer hopper (3) by being obliquely inserted from top to bottom.

3. The feeding device of a powder packaging machine according to claim 1 or 2, characterized in that: The connection angle between the purging pipeline (11) and the buffer hopper (3) is 20° - 75°.

4. The feeding device of a powder packaging machine according to claim 1, characterized in that: There are three purging pipelines (11) provided, and the packaging machine (15) is provided with three discharge ports (16). The outlets of the purging pipelines (11) are respectively facing the discharge ports (16) inside the packaging machine (15) for purging the discharge ports (16).

5. The feeding device of a powder packaging machine according to claim 4, wherein: A pulse valve (12) is installed in a supporting manner on each purging pipeline (11).

6. The feeding device of a powder packaging machine according to claim 5, wherein: The pulse valves (12) are commonly connected to a time relay (13).

7. The feeding device of a powder packaging machine according to claim 1, characterized in that: The buffer hopper (3) is connected to the packaging machine (15) through a flange (14).

8. The feeding device of a powder packaging machine according to claim 1, characterized in that: The buffer hopper (3) is any one of a trapezoidal structure, a cuboid structure and a cube structure.

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