An automatic dosing device

Abstract

The utility model provides a kind of automatic batching device, it is related to powder coating production batching field, it includes rack, several storage bins, several weighing bins and collection discharge hopper, each the storage bin, each the weighing bin and the collection discharge hopper are installed in the rack, each the storage bin and each the weighing bin are set up one by one in vertical direction, each the storage bin is located in each the weighing bin directly above, the bottom discharge port of the storage bin is connected with the top feed port of corresponding the weighing bin intercommunication;The collection discharge hopper is located in each the weighing bin directly below, the top of the collection discharge hopper is provided with collection port, the bottom discharge port of each the weighing bin is interconnected with the collection port, the bottom of the collection discharge hopper is provided with discharge port.The utility model has the effect that multiple raw materials can be batched.

Description

Technical Field

[0001] This utility model relates to the field of powder coating production batching technology, and more specifically, to an automatic batching device. Background Technology

[0002] Powder coating is an environmentally friendly and efficient surface coating process. Its core process is to weigh and mix raw materials such as solid resin, pigments, fillers and additives according to the formula ratio, and then melt extrusion, tableting and crushing and screening to make uniform powder. Since most of these raw materials are solid powders or small granular materials, mixing multiple raw materials in a specified ratio is an important process to ensure the quality of the final powder coating.

[0003] The current mainstream powder production process still relies mainly on manual batching. Human error is prone to occur in the manual operation process, which can lead to unstable quality of the final coating product or even product scrap (color or performance not meeting the standards).

[0004] Existing automated weighing technologies, such as the dual-auger feeding structure disclosed in application number 202123436778.1, include a weighing platform. A first auger box is installed on the top of the weighing platform, and the inlet of the first auger box is sealed and connected to a hopper. The first auger box is driven by a first auger motor. A second auger box is installed at the bottom of the weighing platform and is driven by a second auger motor. The outlet of the first auger box and the inlet of the second auger box are connected through a weighing hopper. A first weighing sensor is installed on the weighing platform, and the probe of the first weighing sensor is fixedly connected to a support column on the surface of the weighing hopper. The outlet of the second auger box is constructed as a block-reducing auger outlet, and the outlet end of the second auger box is supported on the weighing platform by a second weighing sensor. The outlet of the first auger box is provided with a switch component for controlling the on / off state.

[0005] The above-mentioned feeding structure uses a single material feeding method and cannot achieve the feeding of multiple raw materials. Therefore, there is an urgent need for a device that can feed multiple raw materials in powder coating processing. Utility Model Content

[0006] Therefore, in order to solve the problem that it can only dispense single ingredients and cannot meet the needs of multiple raw material dispensing in powder coating processing, this utility model provides an automatic dispensing device, the specific technical solution of which is as follows: An automatic batching device includes a frame, several storage bins, several weighing bins, and a collecting discharge hopper. Each of the storage bins, weighing bins, and collecting discharge hopper is mounted on the frame. The storage bins and weighing bins are arranged vertically in a one-to-one correspondence. Each storage bin is located directly above the weighing bin, and the bottom discharge port of each storage bin is connected to the top inlet of the corresponding weighing bin. The collecting discharge hopper is located directly below each weighing bin. The top of the collecting discharge hopper has a collecting port, and the bottom discharge ports of each weighing bin are connected to the collecting port. The bottom of the collecting discharge hopper has a discharging port.

[0007] By adopting the above technical solution, various raw materials are stored in each storage silo. When batching is required, the hopper car is first parked directly below the collection hopper, the bottom discharge port of each storage silo is opened, and various raw materials are added to each weighing silo. The added raw materials are weighed by the weighing silo, and after the weight is appropriate, the bottom discharge port of each weighing silo is opened, and the raw materials in each weighing silo are collected through the collection port into the collection hopper, and then added to the hopper car through the discharge port. In this way, multiple raw materials can be batched with high batching efficiency.

[0008] Furthermore, screw conveyors are fixedly installed at the discharge port of the storage silo and the discharge port of the weighing silo. The discharge port of the screw conveyor installed in the storage silo is connected to the inlet of the weighing silo through a first pipe, and the discharge port of the screw conveyor installed in the weighing silo is connected to the collection port through a second pipe.

[0009] Furthermore, both the first and second pipes are flexible hoses, and the frame is equipped with a first weighing sensor for weighing the weighing hopper at the position corresponding to each of the weighing hoppers. The weighing hopper is mounted at the working end of the first weighing sensor.

[0010] Furthermore, it also includes a weighing platform and a second weighing sensor, the weighing platform being located directly below the discharge port of the collecting hopper, and the second weighing sensor being installed at the bottom of the weighing platform.

[0011] Furthermore, pneumatic vibratory hammers are fixedly installed on the outer walls of the weighing hopper.

[0012] Furthermore, a discharge bin is installed on the top of the storage bin, the bottom of the discharge bin is open and connected to the feed inlet of the storage bin, a feeding box is installed on the side wall of the discharge bin, one side of the feeding box is open and extends out of the discharge bin, and the bottom opening of the feeding box faces the storage bin.

[0013] Furthermore, the feeding box is rotatably mounted with a stirring paddle located inside the discharge hopper, and the stirring paddle extends vertically downward into the storage hopper; the feeding box is equipped with a first driving component for driving the stirring paddle to rotate.

[0014] Furthermore, an exhaust chamber is provided at the top of the feeding hopper, and several exhaust ports connected to the exhaust chamber are opened at the top of the feeding hopper. Each exhaust port is fixedly installed with a filter cartridge with an open top. An exhaust fan is installed on the exhaust chamber, the air inlet of the exhaust fan is connected to the exhaust chamber, and the air outlet of the exhaust fan is outside the exhaust chamber. The feeding hopper is equipped with a backflushing component for impacting the airflow inside each filter cartridge.

[0015] Furthermore, the backflushing assembly includes a cylinder, an electromagnetic pulse valve, and an air pipe. The cylinder is installed on the outer wall of the feeding hopper. One end of the air pipe is connected to the air outlet of the cylinder, and the other end of the air pipe extends into the exhaust chamber. The air outlet of the air pipe corresponds to the position of the filter cartridge. The electromagnetic pulse valve is installed between the cylinder and the air pipe.

[0016] Furthermore, a folded pipe is installed at the discharge port of the collecting hopper, and a cover plate is installed at the end of the folded pipe away from the collecting hopper. The collecting hopper is equipped with a second driving member for driving the cover plate to move in a vertical direction. Attached Figure Description

[0017] The present invention can be further understood from the following description taken in conjunction with the accompanying drawings. The components in the drawings are not necessarily drawn to scale; rather, the focus is on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a top view of the overall structure of an embodiment of the present utility model; Figure 3 This is a schematic diagram of the installation structure between the weighing hopper and the collecting storage hopper according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of a feeding bin installed on a storage bin according to an embodiment of the present invention; Figure 5 This is a top view of the collection hopper according to an embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures: 1. Frame; 2. Storage bin; 3. Weighing bin; 31. Pneumatic vibratory hammer; 4. Collecting discharge hopper; 41. Folded pipe; 42. Cover plate; 43. Second drive unit; 44. Exhaust vent; 45. Exhaust pipe; 5. Screw conveyor; 51. First pipe; 52. Second pipe; 6. First weighing sensor; 7. Second weighing sensor; 8. Discharge bin; 81. Feeding box; 82. Agitator; 83. First drive unit; 84. Exhaust chamber; 85. Filter cartridge; 86. Exhaust fan; 9. Backflushing assembly; 91. Cylinder; 92. Electromagnetic pulse valve; 93. Air pipe; 101. Hopper cart. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with its embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and do not limit its scope of protection.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] In this utility model, "first" and "second" do not represent a specific quantity or order, but are merely used to distinguish names.

[0024] like Figure 1 and Figure 2As shown, an automatic batching device according to one embodiment of the present invention includes a frame 1, several storage bins 2, several weighing bins 3, and a collecting and discharging hopper 4. In this embodiment, there are six storage bins 2 and six weighing bins 3. Each storage bin 2, each weighing bin 3, and each collecting and discharging hopper 4 are mounted on the frame 1. Each storage bin 2 and each weighing bin 3 are arranged vertically in a one-to-one correspondence, with each storage bin 2 located directly above each weighing bin 3. The top of each storage bin 2 and each weighing bin 3 is a feeding inlet, and the bottom is a discharging outlet. The bottom discharging outlet of each storage bin 2 is connected to the top feeding inlet of the corresponding weighing bin 3. The collecting and discharging hopper 4 is located directly below each weighing bin 3. The top of the collecting and discharging hopper 4 has multiple collecting ports, and the bottom discharging outlets of each weighing bin 3 are connected to the collecting ports. The bottom of the collecting and discharging hopper 4 has a discharge port.

[0025] Each storage bin 2 stores various raw materials. When batching is required, the hopper 101 is first parked directly below the collection discharge hopper 4, the bottom discharge port of each storage bin 2 is opened, and various raw materials are added to each weighing bin 3. After the added raw materials are weighed by the weighing bin 3, the raw materials in each weighing bin 3 are collected into the collection discharge hopper 4 through the collection port, and finally added into the hopper 101 through the discharge port. This achieves batching of multiple raw materials with high batching efficiency.

[0026] Specifically, such as Figure 1 and Figure 3 As shown, screw conveyors 5 are fixedly installed at the discharge port of storage silo 2 and the discharge port of weighing silo 3. The screw conveyors 5 are all horizontal. The discharge port of the screw conveyor 5 installed in storage silo 2 is connected to the inlet of weighing silo 3 through a first pipe 51. The discharge port of the screw conveyor 5 installed in weighing silo 3 is connected to the collection port through a second pipe 52. The first pipe 51 and the second pipe 52 are both flexible hoses. The frame 1 is equipped with a first weighing sensor 6 for weighing the weighing silo 3 at the corresponding position of each weighing silo 3. The weighing silo 3 is mounted at the working end of the first weighing sensor 6. The automatic batching device also includes a weighing platform and a second weighing sensor 7. The weighing platform is located directly below the discharge port of the collection discharge hopper 4. The second weighing sensor 7 is installed at the bottom of the weighing platform.

[0027] Therefore, when the screw conveyor 5 installed in the storage silo 2 is started, the raw materials in the storage silo 2 can be transported to the corresponding weighing silo 3. The first weighing sensor 6 weighs the weighing silo 3 once. Then, the screw conveyor 5 installed in the weighing silo 3 is started again to transport the raw materials in the weighing silo 3 to the corresponding collection port. After passing through the collection discharge hopper 4, the raw materials fall into the hopper car 101 from the discharge port. The second weighing sensor 7 weighs the raw materials in the hopper car 101 a second time. By comparing the two weighings, the error is calculated and supplemented in time. Then, the raw materials in other storage silos 2 are discharged in the same way. This discharge mode is accurate and stable.

[0028] Furthermore, such as Figure 3 and Figure 4 As shown, pneumatic vibratory hammers 31 are fixedly installed on the outer walls of the weighing hopper 3; thus, the raw materials adhering to the inner wall of the weighing hopper 3 can be shaken off, so that the raw materials that have completed one weighing can more fully enter the hopper car 101.

[0029] A feeding bin 8 is fixedly installed at the top center of the storage bin 2. The bottom of the feeding bin 8 is open and connected to the feed inlet of the storage bin 2. A feeding box 81 is fixedly installed on the side wall of the feeding bin 8. One side of the feeding box 81 is open and extends out of the feeding bin 8 and is equipped with a movable door. The other side of the feeding box 81 is inside the feeding bin 8. The bottom opening of the feeding box 81 inside the feeding bin 8 faces the storage bin 2. Thus, personnel can feed materials from the feeding box 81.

[0030] The feeding box 81 is located inside the discharge bin 8 and is rotatably mounted with a stirring paddle 82. The stirring paddle 82 extends vertically downward into the storage bin 2. The feeding box 81 is equipped with a first driving component 83 for driving the stirring paddle 82 to rotate. The first driving component 83 is a motor and is fixedly installed on the outer wall of the feeding box 81. The output shaft of the first driving component 83 is fixedly connected to the rotating shaft of the stirring paddle 82. This allows for continuous stirring of the raw materials in the storage bin 2, reducing the occurrence of raw material clumping and improving the smoothness of material discharge.

[0031] Furthermore, such as Figure 4As shown, an exhaust chamber 84 is provided on the top of the feeding hopper 8. Several exhaust ports connected to the exhaust chamber 84 are opened on the top of the feeding hopper 8. Each exhaust port is fixedly installed with a filter cartridge 85 with an open top. An induced draft fan 86 is installed on the top of the exhaust chamber 84. The air inlet of the induced draft fan 86 is connected to the exhaust chamber 84, and the air outlet of the induced draft fan 86 is outside the exhaust chamber 84. This can reduce the amount of raw materials floating out of the feeding box 81 when adding raw materials. The feeding hopper 8 is equipped with a backflushing assembly 9 for impacting the airflow inside each filter cartridge 85. The backflushing assembly 9 includes a cylinder 91, an electromagnetic pulse valve 92, and an air pipe 93. The cylinder 91 is fixedly installed on the outer wall of the feeding hopper 8, and the air inlet of the cylinder 91 is used to introduce industrial high-pressure air. One end of the air pipe 93 is connected to the air outlet of the cylinder 91, and the other end of the air pipe 93 extends into the exhaust chamber 84. The air outlet of the air pipe 93 corresponds to the position of the filter cartridge 85. The electromagnetic pulse valve 92 is installed between the cylinder 91 and the air pipe 93. Thus, intermittent airflow impact can be achieved inside the filter cartridge 85, flushing away the raw material attached to the outer surface of the filter cartridge 85 and allowing it to enter the storage hopper 2.

[0032] Furthermore, such as Figure 3 and Figure 5 As shown, a folded pipe 41 is fixedly installed at the discharge port of the collecting hopper 4, and the folded pipe 41 is folded vertically; a cover plate 42 is fixedly installed at the end of the folded pipe 41 away from the collecting hopper 4, and the middle of the cover plate 42 is connected to the folded pipe 41. The collecting hopper 4 is equipped with a second driving component 43 for driving the cover plate 42 to move vertically. The second driving component 43 is a cylinder 91, and the second driving component 43 is fixedly installed in the collecting hopper 4. The piston rod of the second driving component 43 is fixedly connected to the cover plate 42; thus, when the hopper 101... After stopping directly below the collection hopper 4, the second drive unit 43 is activated, causing the cover plate 42 to cover the top opening of the hopper car 101, reducing the amount of raw material floating out and affecting the environment. Furthermore, the collection hopper 4 is provided with several exhaust vents 44, the bottom of which extends into the folded pipe 41, and the top of which is connected to an exhaust pipe 45. The exhaust vents 44 are then used to further remove the floating raw material. However, the suction force of the exhaust vents 44 is relatively small and will not remove the raw material that has already entered the hopper car 101, thereby reducing the amount of raw material floating out.

[0033] The implementation principle of an automatic batching device according to an embodiment of this application is as follows: Each storage bin 2 stores various raw materials. When batching is required, the hopper 101 is first stopped directly below the collection discharge hopper 4, the second drive unit 43 is activated, the cover plate 42 is covered on the top of the hopper 101, and the first weighing sensor 6 and the second weighing sensor 7 are zeroed. Then, the screw conveyor 5 installed in the storage bin 2 is started to add various raw materials into each weighing bin 3, and the first weighing sensor 6 weighs the weighing bin 3 once. Then, one of the screw conveyors 5 installed in the weighing bin 3 is started to transport the raw materials in the weighing bin 3 to the corresponding collection port. After passing through the collection discharge hopper 4, the raw materials fall into the hopper 101 from the discharge port, and the second weighing sensor 7 weighs the raw materials in the hopper 101 a second time. By comparing the two weighings, the error is calculated and the raw materials are replenished in time. Then, the raw materials in the next storage bin 2 are fed in the same manner as above.

[0034] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0035] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An automatic batching device, characterized in that, The device includes a frame, several storage bins, several weighing bins, and a collecting discharge hopper. Each of the storage bins, weighing bins, and collecting discharge hopper is installed on the frame. The storage bins and weighing bins are arranged vertically in a one-to-one correspondence. Each storage bin is located directly above the weighing bin, and the bottom discharge port of each storage bin is connected to the top inlet of the corresponding weighing bin. The collecting discharge hopper is located directly below each weighing bin. The top of the collecting discharge hopper has a collecting port, and the bottom discharge ports of each weighing bin are connected to the collecting port. The bottom of the collecting discharge hopper has a discharge port.

2. The automatic batching device according to claim 1, characterized in that, Both the discharge port of the storage silo and the discharge port of the weighing silo are fixedly installed with screw conveyors. The discharge port of the screw conveyor installed in the storage silo is connected to the inlet of the weighing silo through a first pipe, and the discharge port of the screw conveyor installed in the weighing silo is connected to the collection port through a second pipe.

3. The automatic batching device according to claim 2, characterized in that, Both the first and second pipes are flexible hoses. The frame is equipped with a first weighing sensor for weighing the weighing bins at the corresponding positions of each weighing bin. The weighing bins are mounted at the working end of the first weighing sensor.

4. The automatic batching device according to claim 3, characterized in that, It also includes a weighing platform and a second weighing sensor, the weighing platform being located directly below the discharge port of the collecting hopper, and the second weighing sensor being installed at the bottom of the weighing platform.

5. An automatic batching device according to claim 1, characterized in that, Pneumatic hammers are fixedly installed on the outer walls of the weighing hoppers.

6. An automatic batching device according to claim 1, characterized in that, The top of the storage silo is equipped with a discharge silo, the bottom of which is open and connected to the inlet of the storage silo. A feeding box is installed on the side wall of the discharge silo, one side of which is open and extends out of the discharge silo, and the bottom opening of the feeding box faces the storage silo.

7. An automatic batching device according to claim 6, characterized in that, The feeding box is rotatably mounted with a stirring paddle located inside the feeding hopper, and the stirring paddle extends vertically downward into the storage hopper; a first driving component is installed on the feeding box to drive the stirring paddle to rotate.

8. An automatic dispensing device according to claim 6, characterized in that, The top of the feeding hopper is provided with an exhaust chamber, and the top of the feeding hopper has several exhaust ports connected to the exhaust chamber. Each exhaust port is fixedly installed with a filter cartridge with an open top. An exhaust fan is installed on the exhaust chamber, the air inlet of the exhaust fan is connected to the exhaust chamber, and the air outlet of the exhaust fan is outside the exhaust chamber. The feeding hopper is equipped with a backflushing component for impacting the airflow inside each of the filter cartridges.

9. An automatic batching device according to claim 8, characterized in that, The backflushing assembly includes a cylinder, an electromagnetic pulse valve, and an air pipe. The cylinder is installed on the outer wall of the feeding hopper. One end of the air pipe is connected to the air outlet of the cylinder, and the other end of the air pipe extends into the exhaust chamber. The air outlet of the air pipe corresponds to the position of the filter cartridge. The electromagnetic pulse valve is installed between the cylinder and the air pipe.

10. An automatic dispensing device according to claim 1, characterized in that, A folded pipe is installed at the discharge port of the collecting hopper, and a cover plate is installed at the end of the folded pipe away from the collecting hopper. The collecting hopper is equipped with a second driving member for driving the cover plate to move vertically.

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