Superfine powder dust-free packaging machine
By using screw discharge pipes and guide rails to cooperate and dust removal devices in the ultra-fine powder filling machine, the problems of dust pollution and inaccurate packaging are solved, efficient and dust-free powder filling and precise weight control are achieved, and the protection of Operators are healthy and reduce powder waste.
Patent Information
- Application Number
- CN202421119903.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-22
AI Technical Summary
Existing ultrafine powder filling machines are prone to dust pollution when processing ultrafine powder, which affects the health of operators and has problems of inaccurate packaging.
An ultrafine powder dust-free packaging machine is designed, using screw cutting pipe, guide rail and pallet to ensure that the cutting pipe is in contact with the bottom of the filling bag, combined with a dust removal device and a dust collection and recovery negative pressure cover to reduce dust generation, and Accurate filling and sealing through PLC control.
It effectively reduces dust pollution, improves filling accuracy, protects the health of operators, and eliminates powder waste.
Smart Images
Figure CN222202963U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of packaging machines, in particular to an ultra-fine powder dust-free packaging machine. Background Art
[0002] Since ultrafine powders have extremely small particle sizes, many problems are prone to occur during their packaging. Although ultrafine powder technology was developed in the 1980s and 1990s, the corresponding packaging automation technology was difficult to follow up. The manual extensive filling and metering packaging system was the mainstream packaging method at the time, so that there are still a few ultrafine powder processing companies in China that use relatively primitive packaging methods. Compared with the rapidly developing ultrafine powder preparation technology, the development of ultrafine powder packaging technology is particularly slow. At present, the common ultrafine powder packaging form in the market is a straight-tube open packaging bag. The packaged product is loaded into the bag by dumping or gravity. In this process, dust is easily generated, and the large straight-tube opening makes it difficult to avoid dust floating out of the bag and causing pollution. At the same time, the generation of more dust is also a waste of ultrafine powder materials.
[0003] At present, the Chinese patent with the authorization announcement number CN213862738U discloses a fully automatic quantitative double-head powder filling machine, including a base, the bottom of the base is fixedly installed with support feet on both sides, the top middle of the base is fixedly installed with a chassis, the left side of the chassis is provided with a controller, the top middle of the chassis is fixedly installed with a mixing box, the bottom of the mixing box passes through the chassis and extends to the inner cavity of the chassis, and the mixing box is located on the right side outside the top of the chassis. The fully automatic quantitative double-head powder filling machine has a reasonable design, realizes fully automatic high-precision automatic filling and sealing operations, greatly improves production efficiency, and reduces labor intensity; and in the specific filling process, solves the existing problems of leakage, inaccurate and unadjustable filling volume.
[0004] The above-mentioned prior art solution has the following defects: the powder filling machine can only fill and seal powder with larger particles. When the powder to be filled is ultrafine powder, it is very likely that too much air will be encapsulated, affecting the weighing, or the air tightness of the device is poor, resulting in dust polluting the environment and affecting the health of the operator. Utility Model Content
[0005] The utility model aims to provide a superfine powder dust-free packaging machine to solve the problems existing in the above-mentioned prior art.
[0006] The above technical objectives of the utility model are achieved through the following technical solutions:
[0007] A dust-free packaging machine for ultrafine powders, comprising a packaging machine body, a feeding device, a lifting device, a sealing device and a weighing device, wherein a supporting platform is arranged at the bottom end of the packaging machine body, a supporting frame is arranged at the top end of the packaging machine body, a metal pipeline is arranged at one side of the supporting frame, a control terminal is arranged at the other end of the metal pipeline, and a PLC is arranged in the control terminal;
[0008] A feeding device is arranged at the top of the support frame, and the feeding device comprises a clutch, a hopper, a motor, an agitator and a screw. The motor is arranged at one side of the top of the hopper, and the motor is connected to the clutch through a transmission mechanism. The bottom end of the clutch is provided with an agitator, and the screw is detachably mounted at the bottom end of the agitator. The clutch, the agitator and the screw are all coaxially arranged. A feeding pipe is arranged at the bottom end of the hopper, and the feeding pipe is sleeved on the screw.
[0009] A guide rail is arranged on one side of the packaging machine body, a tray is detachably mounted on a lifting device of the guide rail, a sealing device is arranged at the bottom end of the guide rail, a heat insulating layer is arranged at the top end of the sealing device, and a weighing device is arranged on the heat insulating layer.
[0010] By adopting the above technical scheme, the screw feeding tube can be directly in contact with the bottom of the filling bag through the cooperation of the screw feeding tube, the guide rail and the tray, and the ultrafine powder sinks directly to the bottom of the bag. The tray is provided with a clamping device, which can firmly fix the bag opening to prevent dust from falling out. At the same time, the set guide rail can gradually lower the height of the filling bag, so that the feeding port of the screw feeding tube is always kept flush with the powder. The weighing device is connected to the PLC, which can display the filling weight in real time and improve the filling accuracy. The insulation layer is used to protect the pressure sensor in the weighing device from being affected by high temperature. The control terminal uses a touch screen control, and ten sets of different data can be preset for easy retrieval and modification at any time.
[0011] In a further embodiment, a dust removal device is provided at the bottom of the tray, and the dust removal device is electrically connected to the PLC via an electric wire.
[0012] By adopting the above technical solution, after the filling is completed, the filling bag needs to be removed manually or mechanically, and the bag mouth needs to be heat-sealed. During this process, the dust in the bag will float into the air, and the dust removal device will start after detecting that the filling bag has left the weighing device, and absorb the dust dispersed into the air during this process, as well as some dust attached to the discharge pipe.
[0013] In a further embodiment, the sealing device includes an upper heating block and a lower heating block, and a heat source and a temperature sensor are disposed at the center of the upper heating block and the lower heating block, and the multiple temperature sensors are electrically connected to the PLC through wires.
[0014] By adopting the above technical solution, the sealing device is arranged under the weighing device, so an insulation layer is required. The sealing device relies on heat sources at both ends for sealing. A temperature sensor is arranged next to the heat source, which can control the temperature in real time at the closest distance. A photosensitive sensor is arranged between the two heating devices. When the bag mouth is extended between the heating devices, the two heating blocks will be heated and closed under the control of the PLC.
[0015] In a further embodiment, a receiving groove is provided in the middle position of the top of the thermal insulation layer, a weighing device is embedded in the receiving groove, the weighing device includes a high temperature pressure sensor, and the high temperature pressure sensor is electrically connected to the PLC through wires.
[0016] By adopting the above technical solution, a high-temperature pressure sensor is arranged in the heat insulation layer, so that it can withstand the temperature gradually transmitted.
[0017] In a further embodiment, a dust collection and recovery negative pressure hood is provided at the discharge port of the discharge pipe.
[0018] By adopting the above technical solution, before the dust removal device at the bottom of the tray starts to operate, the trace floating dust is further collected into the dust collector and then returned to the warehouse, thereby eliminating waste.
[0019] In a further embodiment, the upper half of the hopper is made of PC material, and the lower half of the hopper is made of stainless steel.
[0020] By adopting the above technical solution, the PC material is transparent, which is convenient for operators to observe the inventory of ultrafine powder in the silo. At the same time, the PC material is also corrosion-resistant and can store some corrosive powders, while the stainless steel material has high strength and is also corrosion-resistant.
[0021] In summary, the utility model has the following beneficial effects:
[0022] 1. Through the setting of the feeding device, tray and guide rail, it can ensure that the feeding pipe is always at the bottom of the bag or the top of the powder, which can reduce the dust;
[0023] 2. The dust removal device can be set up to remove dust in the air when the bag mouth of the filling bag leaves the pallet, thereby reducing environmental pollution and protecting the physical and mental health of operators;
[0024] 3. Through the setting of the dust collection and recovery negative pressure hood, trace floating dust can be collected into the dust collector and then returned to the warehouse, thus achieving the effect of eliminating waste. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0026] Figure 2 It is a schematic diagram of the internal structure of the heating device in the utility model;
[0027] Figure 3 It is a schematic diagram of the internal structure of the blanking device in the utility model.
[0028] In the figure, 1. packaging machine body; 11. supporting platform; 12. supporting frame; 13. metal pipe; 14. control terminal; 2. unloading device; 21. clutch; 22. hopper; 23. motor; 24. agitator; 25. screw; 26. unloading pipe; 27. negative pressure hood for dust collection and recovery; 3. lifting device; 4. sealing device; 41. insulation layer; 411. high temperature pressure sensor; 42. upper heating block; 43. lower heating block; 44. heat source; 45. temperature sensor; 5. weighing device; 6. guide rail; 7. tray; 71. dust removal device. DETAILED DESCRIPTION
[0029] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0030] The same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the attached Figure 1 In the description of this specification, the words "bottom" and "top", "inside" and "outside" refer to directions toward or away from a particular component geometry, respectively. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this specification, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.
[0031] Example:
[0032] like Figure 1-2As shown, a dust-free packaging machine for ultrafine powders comprises a packaging machine body 1, a feeding device 2, a lifting device 3, a sealing device 4 and a weighing device 5. A supporting platform 11 is arranged at the bottom of the packaging machine body 1, a supporting frame 12 is arranged at the top of the packaging machine body 1, a metal pipe 13 is arranged on one side of the supporting frame 12, a control terminal 14 is arranged at the other end of the metal pipe 13, a PLC is arranged in the control terminal 14, a feeding device 2 is arranged at the top of the supporting frame 12, the feeding device 2 comprises a clutch 21, a hopper 22, a motor 23, a stirrer 24 and a screw 25, the motor 2 3 is arranged on one side of the top of the hopper 22, the motor 23 is connected to the clutch 21 through a transmission mechanism, the bottom end of the clutch 21 is provided with an agitator 24, the screw 25 is detachably mounted on the bottom end of the agitator 24, the clutch 21, the agitator 24 and the screw 25 are coaxially arranged, the bottom end of the hopper 22 is provided with a feed pipe 26, the feed pipe 26 is sleeved on the screw 25, the bottom of the tray 7 is provided with a dust removal device 71, the dust removal device 71 is electrically connected to the PLC through an electric wire, the discharge port of the feed pipe 26 is provided with a dust collection and recovery negative pressure cover 27, the upper half of the hopper 22 The material of the hopper 22 is PC, the lower part of the hopper 22 is made of stainless steel, a guide rail 6 is provided on one side of the packaging machine body 1, a tray 7 is detachably mounted on the lifting device 3 of the guide rail 6, and a sealing device 4 is provided at the bottom of the guide rail 6. When the ultrafine powder is filled, if the discharge port of the feeding pipe 26 is higher than the bottom of the bag, it will cause huge dust, and if the sealing of the tray 7 used to fix the bag opening is poor, it will also cause dust to pollute the environment. Therefore, a guide rail 6 and a lifting device 3 are provided on the packaging machine body, and the tray 7 is fixed by the lifting device 3. The tray 7 is responsible for fixing the bag opening of the filling bag, and the filling bag can be moved up and down. It is ensured that the discharge port of the discharge pipe always touches the bottom of the filling bag and the top of the ultrafine powder, thereby reducing dust. The screw 25 is controlled by the motor 23 to ensure that the amount of discharge is accurate and controllable, and the agitator 24 can scrape off the ultrafine powder adhering to the hopper 22 to ensure that the hopper 22 always maintains normal operation. The dust removal device 71 can absorb the dust in the air and the powder attached to the surface of the discharge pipe 26 when the bag mouth of the filling bag leaves the tray 7. Before the dust removal device 71 at the bottom of the tray 7 operates, the dust collection and recovery negative pressure hood 27 on the discharge port of the discharge pipe 26 always keeps operating to suck the excess powder back into the silo to eliminate waste.
[0033] like Figure 1-3As shown, a heat insulating layer 41 is provided at the top of the sealing device 4, a weighing device 5 is provided on the heat insulating layer 41, a receiving groove is provided at the middle position of the top of the heat insulating layer 41, a weighing device 5 is embedded in the receiving groove, the weighing device 5 includes a high temperature pressure sensor 411, and the high temperature pressure sensor 411 is electrically connected to the PLC through wires, the sealing device 4 includes an upper heating block 42 and a lower heating block 43, and a heat source 44 and a temperature sensor 45 are provided at the center of the upper heating block 42 and the lower heating block 43, and the multiple temperature sensors The devices 45 are electrically connected to the PLC through wires. The bottom end of the packaging machine body 1 is integrated with a weighing device 5 and a sealing device 4. The sealing is done by heat sealing, which is faster than sewing with thread and occupies a smaller area. A heat source 44 and a temperature sensor 45 are arranged in the heat seal. The temperature and heat release time of the heat source 44 are controlled by the PLC. The weighing device 5 also uses a high-temperature pressure sensor 411 to prevent the temperature at the bottom from affecting it. Due to the setting of the heat insulation layer 41, the filling bag will not be affected by the temperature of the sealing device 4 during weighing.
[0034] Specific implementation process:
[0035] First, observe the upper part of the hopper 22. Through the PC shell, you can see whether the amount of ultrafine powder inside meets the requirements. After confirmation, fix the filling bag on the tray 7 to ensure that it is in a sealed state. Click the touch screen on the control terminal 14 to start the machine. The motor 23 rotates to drive the clutch 21 and the stirrer 24. The stirrer 24 stirs and moves the ultrafine powder on the inner wall of the hopper 22. At the same time, the screw 25 rotates to allow the ultrafine powder to enter the filling bag through the discharge port of the feed pipe 26. As the stirrer 24 operates, the tray 7 fixed with the filling bag gradually moves downward on the slide rail along with the lifting device 3. When the filling bag is taken out from the tray 7, the dust removal device 71 at the bottom of the tray 7 also starts to operate to remove the dust in the air and the ultrafine powder attached to the feeding pipe 26. At this time, the position where the filling bag needs to be sealed is placed in the middle of the sealing device 4 at the bottom. With the operation of the photosensor arranged behind the sealing device 4, the PLC controls the heat source 44 to start releasing heat, thereby completing the sealing of the polyethylene bag.
[0036] In the embodiments disclosed in the present invention, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "connect" can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the embodiments disclosed in the present invention can be understood according to specific circumstances.
[0037] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.
Claims
1. A dust-free packaging machine for ultrafine powders, comprising a packaging machine body (1), a feeding device (2), a lifting device (3), a sealing device (4) and a weighing device (5), characterized in that: A supporting platform (11) is arranged at the bottom end of the packaging machine body (1), a supporting frame (12) is arranged at the top end of the packaging machine body (1), a metal pipe (13) is arranged on one side of the supporting frame (12), a control terminal (14) is arranged at the other end of the metal pipe (13), and a PLC is arranged in the control terminal (14); A feeding device (2) is arranged at the top of the support frame (12), and the feeding device (2) comprises a clutch (21), a hopper (22), a motor (23), a stirrer (24) and a screw (25). The motor (23) is arranged at one side of the top of the hopper (22), and the motor (23) is connected to the clutch (21) through a transmission mechanism. The stirrer (24) is arranged at the bottom of the clutch (21), and the screw (25) is detachably mounted at the bottom of the stirrer (24). The clutch (21), the stirrer (24) and the screw (25) are all coaxially arranged. A feeding pipe (26) is arranged at the bottom of the hopper (22), and the feeding pipe (26) is sleeved on the screw (25); A guide rail (6) is provided on one side of the packaging machine body (1); a tray (7) is detachably mounted on a lifting device (3) of the guide rail (6); a sealing device (4) is provided at the bottom end of the guide rail (6); a heat insulating layer (41) is provided at the top end of the sealing device (4); and a weighing device (5) is provided on the heat insulating layer (41).
2. The ultrafine powder dust-free packaging machine according to claim 1, characterized in that: A dust removal device (71) is provided at the bottom of the tray (7), and the dust removal device (71) is electrically connected to the PLC via an electric wire.
3. The ultrafine powder dust-free packaging machine according to claim 1, characterized in that: The sealing device (4) comprises an upper heating block (42) and a lower heating block (43), wherein a heat source (44) and a temperature sensor (45) are arranged at the center of the upper heating block (42) and the lower heating block (43), and the plurality of temperature sensors (45) are electrically connected to the PLC via electric wires.
4. The ultrafine powder dust-free packaging machine according to claim 3, characterized in that: A receiving groove is provided at the middle position of the top end of the heat insulation layer (41), a weighing device (5) is embedded in the receiving groove, the weighing device (5) comprises a high temperature pressure sensor (411), and the high temperature pressure sensor (411) is electrically connected to the PLC via an electric wire.
5. The ultrafine powder dust-free packaging machine according to claim 1, characterized in that: A dust collecting and recovery negative pressure hood (27) is provided at the discharge port of the discharge pipe (26).
6. The ultrafine powder dust-free packaging machine according to claim 1, characterized in that: The upper part of the hopper (22) is made of PC material, and the lower part of the hopper (22) is made of stainless steel.