Discharging opening mechanism with dust collection function
By designing a liftable dust collection hood and negative pressure suction at the powder packaging discharge port, the problem of blockage of the powder packaging discharge port is solved, and efficient dust removal and convenient cleaning are achieved.
Patent Information
- Application Number
- CN202422946547.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-12-02
AI Technical Summary
The existing powder packaging discharge port is easily blocked during the dust removal process due to the high viscosity of the material, making cleaning difficult and ineffective.
A discharge port mechanism with dust suction is designed, which includes a discharge barrel and a guide hopper connected upper and lower. A liftable dust collecting hood is provided on the outer side. The dust collecting hood consists of an upper hood and a lower hood. Dust is sucked by a negative pressure air source, and an oscillating hammer is used to vibrate the dust collecting hood during cleaning to avoid blockage.
It improves the dust suction capacity, avoids dust overflow, facilitates cleaning, reduces downtime for maintenance, and enhances the dust removal effect.
Smart Images
Figure CN223396398U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of powder packaging dust removal, in particular to a feeding port mechanism with dust suction function. Background Art
[0002] In the automated packaging process, powder or granular products are filled into bags or other packaging containers through an electrically controlled discharge port, and the entire process is an assembly line operation. Because flying powder and dust are a significant problem during the discharge process, a dust-collecting jacket is installed on the outer layer of the discharge port. Suction is applied through the gap between the outer jacket and the discharge port to remove dust. However, due to its sandwich structure, viscous materials tend to adhere to the interlayer, causing blockages and requiring frequent maintenance. Furthermore, the fixed gap structure makes cleaning difficult, time-consuming, and ineffective. Utility Model Content
[0003] The purpose of the utility model is to provide a discharge port mechanism with dust collection, which can effectively remove dust from the discharge area of powder packaging and is easy to clean and maintain.
[0004] In order to achieve the above-mentioned purpose, the present invention is realized through the following technical solutions:
[0005] A discharge port mechanism with dust suction comprises a discharge barrel and a guide hopper connected upper and lower, the guide hopper is conical in shape with a larger upper portion and a smaller lower portion and a discharge port is provided at the bottom end, the outer side of the guide hopper is sleeved with a dust collecting hood with a lifting stroke, the dust collecting hood comprises an upper hood and a lower hood connected to each other from top to bottom, the upper hood is a bucket shape with a larger upper portion and a smaller lower portion, the lower hood is a trumpet shape with a smaller upper portion and a larger lower portion, the upper part of the upper hood is provided with a connecting pipe connected to a negative pressure air source, when the dust collecting hood is located at the top end of its lifting stroke, the discharge port is located within the range covered by the lower hood, and when the dust collecting hood is located at the bottom end of its lifting stroke, the lower hood is located below the discharge port.
[0006] The inclination amplitude of the upper cover side wall is greater than the inclination amplitude of the guide hopper side wall.
[0007] The top side of the upper cover is provided with an annular sealing plate, and the upper part of the sealing plate is provided with a fixed mounting ring piece, the top end of the lower barrel is provided with an upper barrel mouth, and the upper barrel mouth is fixed with a mounting flange, and a cylinder body and a sliding sleeve extending vertically downward are fixed on the mounting flange, and the bottom end of the sliding sleeve is provided with a light rod that cooperates with the telescopic sliding thereof, and the bottom end of the cylinder body is provided with a cylinder rod that cooperates with the telescopic sliding thereof, and the bottom end of the light rod and the bottom end of the light rod are fixed on the mounting ring piece.
[0008] A sealing strip is fixed to the inner ring of the sealing plate, and the inner end face of the sealing strip is a sealing surface corresponding to the outer wall slope of the guide hopper. When the sealing surface contacts the guide hopper, the upper side of the lower cover is located above the discharge port, and the lower side of the lower cover is located below the discharge port.
[0009] A flexible cover is provided between the inner ring of the sealing plate and the side wall of the guide hopper. The flexible cover is an annular cover. The inner ring of the flexible cover is sealed and fixed to the side wall of the guide hopper, and the outer ring of the flexible cover is sealed and fixed to the inner ring of the sealing plate.
[0010] A fixed mounting platform is provided on one side of the upper cover, a vertical shaft is provided on the side of the mounting platform close to the upper cover, a shaft sleeve is rotatably mounted on the vertical shaft, an extension portion is provided on one side of the shaft sleeve, and a swing hammer hinged to the end of the extension portion is provided.
[0011] When the dust collecting hood is located at its lower end, the swing hammer strikes the dust collecting hood based on the rotation of the shaft sleeve.
[0012] The bottom of the shaft sleeve is provided with a lower gear fixed thereto, and a driving gear driven by a motor is rotatably installed on the mounting platform, and the driving gear is meshed with the lower gear.
[0013] Compared with the prior art, the beneficial effects of the present invention are:
[0014] By tightening the bottom of the upper hood, it creates the narrowest gap with the guide hopper, thereby improving suction capacity. The lower hood surrounds and covers the discharge port, preventing dust from escaping and improving dust collection efficiency. In addition, the dust hood can be lowered to offset the narrow section with the guide hopper, thus preventing material jams. During cleaning, materials can be shaken off smoothly, avoiding blockages and facilitating cleaning. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the present utility model.
[0016] Figure 2 It is a top view of the present utility model.
[0017] Figure 3 This utility model Figure 2 AA cross-sectional view.
[0018] Figure 4 This utility model is a cross-sectional view Figure 3 Schematic diagram of the dust hood at the bottom of its travel.
[0019] Figure 5 It is a schematic diagram of the internal structure of the dust collecting hood of the utility model during dust collecting operation.
[0020] Figure 6It is a schematic diagram of the internal structure of the dust collecting hood of the utility model when it is lowered for cleaning.
[0021] Reference numerals shown in the accompanying drawings:
[0022] 1. Discharge barrel; 2. Mounting flange; 3. Guide hopper; 4. Discharge port; 5. Upper cover; 6. Connector pipe; 7. Lower cover; 8. Closing plate; 9. Sealing strip; 10. Polished rod; 11. Sliding sleeve; 12. Cylinder body; 13. Cylinder rod; 14. Mounting platform; 15. Vertical shaft; 16. Bushing; 17. Swing hammer; 18. Extension; 19. Lower gear. DETAILED DESCRIPTION
[0023] The present invention will be further described below with reference to specific embodiments. It should be understood that these embodiments are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the contents of this invention, those skilled in the art may make various changes or modifications to the present invention, and that these equivalent forms also fall within the scope defined in this application.
[0024] Example:
[0025] This example is an improvement based on the sandwich dust collection sleeve we are currently using. The main structure of the entire device includes:
[0026] The top of the lower barrel 1 is connected to the material system. Usually, the material system is a conveying pipe system that uses wind as the conveying medium. The top of the lower barrel 1 is provided with an upper barrel mouth, and a mounting flange 2 is fixed on the upper barrel mouth for installation and fixation.
[0027] A conical guide hopper 3 is provided at the bottom of the discharge barrel 1. The top of the guide hopper 3 has the same diameter as the discharge barrel 1. The bottom of the guide hopper 3 is a narrowed discharge port 4 for centrally conveying materials downward to complete the filling process.
[0028] The outer side of the guide hopper 3 is provided with a dust collecting cover, which is an axisymmetric structure as a whole and is coaxially arranged with the discharge barrel 1. The gap between the inner wall of the dust collecting cover and the outer side of the guide hopper 3 forms a dust collecting channel.
[0029] The dust collecting hood includes an upper hood 5 and a lower hood 7 integrally formed from top to bottom. The bottom of the upper hood 5 is a conical bucket structure with a larger upper portion and a smaller lower portion, and the inclination of the conical slope (normal) of the upper hood 5 is greater than that of the guide hopper 3. Therefore, the gap between the upper hood 5 and the outer wall of the guide hopper 3 becomes wider as it goes up. The lower hood 7 is a trumpet-shaped structure with a smaller upper portion and a larger lower portion. The top side of the lower hood 7 is docked with the bottom side of the upper hood 5, and the gap formed by the contact between the lower hood 7 and the upper hood 5 and the guide hopper 3 is the narrowest.
[0030] The upper part of the upper cover 5 is symmetrically provided with a joint pipe 6, which is used to connect to the negative pressure air source through a sealed hose. An organ pipe that is easy to expand or deform can be used, or an ordinary hose can be used to obtain a stronger negative pressure exhaust capacity.
[0031] The top side of the upper cover 5 is provided with an annular sealing plate 8, the outer side of the sealing plate 8 is sealed and connected with the upper side of the upper cover 5 to form an integral body, and the inner ring of the sealing plate 8 is fixed with a sealing strip 9, and the inner end face of the sealing strip 9 is a sealing surface corresponding to the outer wall slope of the guide hopper 3. When the sealing surface contacts the guide hopper 3, the upper side of the lower cover 7 is located above the discharge port 4, and the lower side of the lower cover 7 is located below the discharge port 4, so that the discharge port 4 is located within the range of the lower cover 7, thereby timely adsorbing the dust near the discharge, avoiding downward and outward diffusion, and achieving precise adsorption. Based on the cooperation between the upper sealing plate 8 and the guide hopper 3, a closed dust collection channel is obtained, and the negative pressure airflow carrying dust is led out from the connecting pipe 6, and subsequently connected to the dust removal equipment to realize the recovery of the material. The subsequent dust removal equipment can select common solid-gas separation equipment such as bag dust removal or cyclone dust removal according to the weight and fineness of the material to complete the collection of solid powder.
[0032] A fixed mounting ring is provided above the sealing plate 8, and a lifting mechanism for driving and guiding the dust hood to lift and lower is provided between the mounting ring and the mounting flange 2. In this example, the lifting mechanism includes: a light rod 10, a sleeve 11, a cylinder body 12, and a cylinder rod 13, wherein the cylinder body 12 can be an electric cylinder, an oil cylinder, or an air cylinder. Since the filling system cannot do without an air source and a power source, an air cylinder or an electric cylinder can be used.
[0033] The upper portion of the cylinder rod 13 is telescopically matched with the cylinder body 12 , the top of the cylinder body 12 is fixed on the mounting flange 2 , and the bottom end of the cylinder body 12 is fixed on the mounting ring.
[0034] The upper part of the polished rod 10 is inserted into the sliding sleeve 11 and the two slide up and down. The bottom end of the polished rod 10 is fixed on the mounting ring, and the top end of the sliding sleeve 11 is fixed on the mounting flange 2. The sliding sleeve 11 and the polished rod 10 can be set as one or more groups to stabilize the lifting of the dust collecting hood. Usually, one group can fully meet the guiding requirements of the lifting.
[0035] Under the above structure, the dust collecting hood can be lowered to a certain height relative to the guide hopper 3, so that the narrowest part (the joint position of the lower cover 7 and the upper cover 5) is separated from the guide hopper 3, thereby avoiding the problem of material jamming. During cleaning, the material can be shaken off smoothly to avoid blockage and facilitate cleaning.
[0036] A fixed mounting platform 14 is provided on one side of the upper cover 5, and a vertical shaft 15 is provided on the side of the mounting platform 14 close to the upper cover 5. A shaft sleeve 16 is rotatably mounted on the vertical shaft 15, and a lower gear 19 is provided at the bottom of the shaft sleeve 16 and fixed thereto. A driving gear driven by a motor is rotatably mounted on the mounting platform 14, and the driving gear is engaged with the lower gear 19 to realize the drive control of the rotation of the shaft sleeve 16. An extension 18 is provided on one side of the shaft sleeve 16, and a swinging hammer 17 is hingedly connected to the end of the extension 18. When the dust collecting hood falls down for cleaning, the minimum distance between the extension 18 and the dust collecting hood is less than the length of the swinging hammer 17. Therefore, when the shaft sleeve 16 is started to rotate, the swinging hammer 17 hits the dust collecting hood, so that the material inside it falls smoothly. Based on the bucket shape of the upper cover 5, the material can be easily shaken off by vibration.
[0037] By tightening the bottom side of the upper cover 5, the narrowest gap is obtained in cooperation with the guide hopper 3, thereby improving the suction capacity. At the same time, the dust collecting cover is dropped during cleaning, and the narrow part and the guide hopper 3 can be staggered and knocked to make the accumulated material in the dust collecting cover fall smoothly, replacing manual cleaning.
[0038] In this example, after the dust hood is raised, the sealing strip 9 fits tightly against the side wall of the guide hopper 3 to achieve sealing and ensure the exhaust and dust collection effect. After the dust hood falls, the sealing strip 9 is separated from the guide hopper 3, which can facilitate the cleaning of the inner wall with the assistance of other tools.
[0039] Not limited to this example, a flexible cover can also be provided between the inner circle of the sealing plate 8 and the side wall of the guide hopper 3 to seal the two, so that the sealing effect is maintained between the sealing plate 8 and the guide hopper 3 regardless of whether the dust collecting hood is lowered or raised. Although this is inconvenient to use tools to clean deep inside, it can be combined with negative pressure exhaust to suck away the adhering powder while vibrating.
Claims
1. A feeding port mechanism with dust suction, characterized in that: It includes a discharge barrel and a guide hopper connected up and down, the guide hopper is a cone with a larger upper part and a smaller lower part and a discharge port is provided at the bottom, the outer side of the guide hopper is provided with a dust collecting hood with a lifting stroke, the dust collecting hood includes an upper hood and a lower hood connected to each other from top to bottom, the upper hood is a bucket shape with a larger upper part and a smaller lower part, the lower hood is a trumpet shape with a smaller upper part and a larger lower part, the upper part of the upper hood is provided with a connecting pipe connected to the negative pressure air source, when the dust collecting hood is located at the top of its lifting stroke, the discharge port is located within the range covered by the lower hood, and when the dust collecting hood is located at the bottom of its lifting stroke, the lower hood is located below the discharge port.
2. A discharge port mechanism with dust suction according to claim 1, characterized in that: The inclination amplitude of the upper cover side wall is greater than the inclination amplitude of the guide hopper side wall.
3. A discharge port mechanism with dust suction according to claim 2, characterized in that: The top side of the upper cover is provided with an annular sealing plate, and the upper part of the sealing plate is provided with a fixed mounting ring piece, the top end of the lower barrel is provided with an upper barrel mouth, and the upper barrel mouth is fixed with a mounting flange, and a cylinder body and a sliding sleeve extending vertically downward are fixed on the mounting flange, and the bottom end of the sliding sleeve is provided with a light rod that cooperates with the telescopic sliding thereof, and the bottom end of the cylinder body is provided with a cylinder rod that cooperates with the telescopic sliding thereof, and the bottom end of the light rod and the bottom end of the light rod are fixed on the mounting ring piece.
4. A feeding port mechanism with dust suction according to claim 3, characterized in that: A sealing strip is fixed to the inner ring of the sealing plate, and the inner end face of the sealing strip is a sealing surface corresponding to the outer wall slope of the guide hopper. When the sealing surface contacts the guide hopper, the upper side of the lower cover is located above the discharge port, and the lower side of the lower cover is located below the discharge port.
5. A feeding port mechanism with dust suction according to claim 3, characterized in that: A flexible cover is provided between the inner ring of the sealing plate and the side wall of the guide hopper. The flexible cover is an annular cover. The inner ring of the flexible cover is sealed and fixed to the side wall of the guide hopper, and the outer ring of the flexible cover is sealed and fixed to the inner ring of the sealing plate.
6. A feeding port mechanism with dust suction according to claim 1, characterized in that: A fixed mounting platform is provided on one side of the upper cover, a vertical shaft is provided on the side of the mounting platform close to the upper cover, a shaft sleeve is rotatably mounted on the vertical shaft, an extension portion is provided on one side of the shaft sleeve, and a swing hammer hinged to the end of the extension portion is provided.
7. A discharge port mechanism with dust suction according to claim 6, characterized in that: When the dust collecting hood is located at its lower end, the swing hammer strikes the dust collecting hood based on the rotation of the shaft sleeve.
8. A feeding port mechanism with dust suction according to claim 6, characterized in that: The bottom of the shaft sleeve is provided with a lower gear fixed thereto, and a driving gear driven by a motor is rotatably installed on the mounting platform, and the driving gear is meshed with the lower gear.