A material conveying anti-clogging structure for the production of polyvinyl chloride anti-corrosion coatings

Abstract

This utility model relates to the field of coating production technology and discloses a material conveying anti-clogging structure for the production of polyvinyl chloride anti-corrosion coatings, including: a storage tank; a hammering structure, the hammering structure including a support frame, a main shaft, fixed rings and swing arms. The main shaft is rotatably installed inside the conveying pipe through the support frame. The main shaft extends radially along the conveying pipe. Several fixed rings are fixedly installed on the main shaft. Each fixed ring is rotatably connected to several swing arms. The main shaft is driven to rotate by an auger conveyor. The main shaft drives each fixed ring and the multiple swing arms on each fixed ring to rotate circumferentially. The multiple swing arms are thrown out under the action of centrifugal force, continuously squeezing and shearing the material in the conveying pipe, effectively destroying the adhering coating layer and deposits. The hinged design prevents the swing arms from jamming, prevents material adhesion and accumulation, and prevents problems before they occur. It is a purely mechanical structure with high reliability. It does not require an external gas / liquid source, has no pollution risk, improves the stability of the material conveying process, and reduces the probability of clogging.

Description

Technical Field

[0001] This utility model relates to the field of coating production technology, and in particular to a material conveying anti-clogging structure for the production of polyvinyl chloride anti-corrosion coatings. Background Technology

[0002] In the production process of polyvinyl chloride coatings, material transportation is a crucial step.

[0003] A search revealed a prior art anti-clogging paint delivery pipe (publication number: CN221140078U), comprising:

[0004] Pipelines;

[0005] The filter housing is installed on the conveying pipeline;

[0006] The sealing mechanism is located on the filter housing;

[0007] The filter screen is located on the sealing mechanism;

[0008] The rotating mechanism is mounted on the sealing mechanism; and

[0009] A scraper is mounted on a rotating mechanism, which is used to rotate the scraper.

[0010] Existing technologies use removable filters inside the pipes to filter impurities and prevent clogging. However, high-viscosity PVC materials are prone to scaling on the pipe walls, accumulating at bends, or clogging due to pigment agglomeration. There is a lack of an efficient, reliable, purely mechanical anti-clogging solution specifically designed for the high viscosity and easy deposition characteristics of PVC coatings.

[0011] Therefore, we propose a material conveying anti-clogging structure for the production of polyvinyl chloride anti-corrosion coatings. Utility Model Content

[0012] The present invention mainly addresses the technical problem of easy accumulation and blockage in pipelines, and provides a material conveying anti-blockage structure for the production of polyvinyl chloride anti-corrosion coatings.

[0013] To achieve the above objectives, this utility model adopts the following technical solution: a material conveying anti-blocking structure for the production of polyvinyl chloride anti-corrosion coatings, comprising:

[0014] A storage tank, wherein an auger conveyor is fixedly installed inside the storage tank, and a conveying pipe is fixedly connected to the output end of the auger conveyor;

[0015] A hammering structure is installed inside the conveying pipe to suppress material blockage. The hammering structure includes a support frame, a main shaft, fixed rings, and swing arms. The main shaft is rotatably installed inside the conveying pipe via the support frame and extends radially along the conveying pipe. Several fixed rings are fixedly installed on the main shaft, and each fixed ring is rotatably connected to several swing arms. The main shaft is connected to the blades of the auger conveyor.

[0016] In a preferred embodiment of this utility model, the end of the conveying pipe is welded with a connecting flange, and two adjacent conveying pipes can be locked together by the connecting flange.

[0017] In a preferred embodiment of this utility model, the support frame is fixedly installed inside the conveying pipe, the support frame is equipped with bearings, and the main shaft is axially connected to the support frame through the bearings.

[0018] In a preferred embodiment of this utility model, the fixing ring is annular, the central hole of the fixing ring is clearance-fitted with the main shaft, and the main shaft passes through the central hole of the fixing ring and is fully welded and fixed.

[0019] In a preferred embodiment of this utility model, the swing arm is an arc-shaped plate, the circumferential surface of the fixing ring is provided with an annular groove, the end of the swing arm is located in the annular groove, a pin is fixedly provided in the annular groove, and the swing arm is provided with a shaft hole through which the pin passes.

[0020] In a preferred embodiment of this invention, the hammering structure further includes a pendulum, which is rotatably mounted at the end of the swing arm and does not interfere with the inner wall of the conveying pipe.

[0021] As a preferred embodiment of the present invention, the hammering structure further includes a plug-in protrusion, which is fixedly disposed at the end of the spindle and integrally formed with the spindle. The other end of the spindle is provided with a socket that fits the plug-in protrusion with a clearance, and the plug-in protrusion can be inserted into the socket of another spindle.

[0022] This utility model provides a material conveying anti-clogging structure for the production of polyvinyl chloride anti-corrosion coatings. It has the following beneficial effects:

[0023] 1. This anti-clogging structure for material conveying in the production of polyvinyl chloride anti-corrosion coatings features a support frame that supports the main shaft to maintain stable axial rotation. The main shaft is connected to the end of the spiral blades of an auger conveyor via a flange. The auger conveyor drives the main shaft to rotate, which in turn drives the various fixed rings and multiple swing arms on each ring to rotate circumferentially. Under centrifugal force, the multiple swing arms are thrown out, continuously squeezing and shearing the material in the conveying pipe, effectively destroying the adhering coating layer and deposits. The hinged design prevents the swing arms from jamming, preventing material adhesion and accumulation, thus preventing problems before they occur. It is a purely mechanical structure with high reliability, requires no external gas / liquid source, has no pollution risk, improves the stability of material conveying, and reduces the probability of clogging.

[0024] 2. This anti-clogging structure for material conveying in the production of polyvinyl chloride anti-corrosion coatings improves the anti-sticking and anti-clogging performance by hingedly installing a pendulum at the end of the swing arm, thereby enhancing the hammering effect on the material near the inner wall of the conveying pipe.

[0025] 3. This material conveying anti-clogging structure for the production of polyvinyl chloride anti-corrosion coatings connects multiple conveying pipes to form a conveying pipeline through connecting flanges. When two adjacent conveying pipes are connected, a plug-in protrusion can be inserted into the insertion hole of another main shaft, thereby realizing the synchronous movement of the main shaft in each conveying pipe. The pipeline length can be adjusted according to requirements. The main shaft and swing arm set in each conveying pipe can improve the anti-clogging performance of the entire pipeline. Attached Figure Description

[0026] Figure 1 This is one of the overall perspective views of this utility model;

[0027] Figure 2 This is a perspective view of the conveying pipe of this utility model;

[0028] Figure 3 This is a partial sectional view of the conveying pipe of this utility model;

[0029] Figure 4 This is a perspective view of the fixing ring and the swing arm of this utility model;

[0030] Figure 5 This is a schematic diagram of the connection between the two delivery pipes of this utility model.

[0031] Legend: 10. Storage tank; 11. Conveying pipe; 12. Connecting flange; 20. Support frame; 21. Main shaft; 22. Fixing ring; 23. Swing arm; 24. Pendulum; 25. Insertion protrusion. Detailed Implementation

[0032] A material conveying anti-clogging structure for the production of polyvinyl chloride anti-corrosion coatings, such as Figure 1 As shown, it includes:

[0033] The storage tank 10 has a screw conveyor fixedly installed inside it. The output end of the screw conveyor is fixedly connected to the conveying pipe 11. Specifically, a motor is fixedly installed outside the storage tank 10. The motor is connected to a control switch and a power supply. The output shaft of the motor is connected to the input end of the screw conveyor through a coupling. The storage tank 10 is provided with a sealing flange for sealing the motor output shaft. A sealing ring is provided inside the sealing flange. The material in the storage tank 10 is fed into the conveying pipe 11 by the screw conveyor to realize material conveying.

[0034] like Figure 2 , Figure 3 and Figure 4As shown, a hammering structure is installed inside the conveying pipe 11 to suppress material blockage. The hammering structure includes a support frame 20, a main shaft 21, fixing rings 22, and swing arms 23. The main shaft 21 is rotatably mounted inside the conveying pipe 11 via the support frame 20. The main shaft 21 extends radially along the conveying pipe 11. Several fixing rings 22 are fixedly mounted on the main shaft 21, and each fixing ring 22 is rotatably connected to several swing arms 23. The main shaft 21 is connected to the blades of the auger conveyor. A connecting flange 12 is welded to the end of the conveying pipe 11, allowing two adjacent conveying pipes 11 to connect. The support frame 20 is fixedly installed inside the conveying pipe 11 by locking the connection through the connecting flange 12. The support frame 20 is equipped with bearings. The main shaft 21 is axially connected to the support frame 20 through the bearings. The fixing ring 22 is annular. The center hole of the fixing ring 22 is clearance-fitted with the main shaft 21. The main shaft 21 passes through the center hole of the fixing ring 22 and is fully welded and fixed. The swing arm 23 is an arc-shaped plate. The circumferential surface of the fixing ring 22 is provided with an annular groove. The end of the swing arm 23 is located in the annular groove. A pin is fixedly installed in the annular groove. The swing arm 23 is provided with a shaft hole. The pin passes through the shaft hole.

[0035] In this design, the main shaft 21 is supported by the support frame 20 to maintain stable axial rotation. The main shaft 21 is connected to the end of the spiral blade of the auger conveyor via a flange. The auger conveyor drives the main shaft 21 to rotate, which in turn drives the various fixed rings 22 and the multiple swing arms 23 on each fixed ring 22 to rotate circumferentially. The multiple swing arms 23 are thrown out under the action of centrifugal force, continuously squeezing and shearing the material in the conveying pipe 11, effectively destroying the adhering coating layer and deposits. The hinged design prevents the swing arms 23 from jamming, preventing material adhesion and accumulation, thus preventing problems before they occur. It is a purely mechanical structure with high reliability, requires no external gas / liquid source, has no risk of pollution, improves the stability of the material conveying process, and reduces the probability of blockage.

[0036] like Figure 3 and Figure 4 The hammering structure shown also includes a pendulum 24, which is rotatably mounted at the end of the swing arm 23. The pendulum 24 does not interfere with the inner wall of the conveying pipe 11.

[0037] In this solution, a pendulum 24 is hinged to the end of the swing arm 23. The pendulum 24 enhances the hammering effect on the material near the inner wall of the conveying pipe 11, thereby further improving the anti-sticking and anti-clogging performance.

[0038] like Figure 3 As shown, the hammering structure also includes a plugging protrusion 25, which is fixedly disposed at the end of the spindle 21. The plugging protrusion 25 is integrally formed with the spindle 21. The other end of the spindle 21 is provided with a socket that is clearance-fitted with the plugging protrusion 25, and the plugging protrusion 25 can be inserted into the socket of another spindle 21.

[0039] In this scheme, multiple conveying pipes 11 are connected by connecting flange 12 to form a conveying pipeline. When two adjacent conveying pipes 11 are connected, the insertion protrusion 25 can be inserted into the insertion hole of another main shaft 21, thereby realizing the synchronous movement of the main shaft 21 in each conveying pipe 11. The pipeline length can be adjusted according to the requirements. The main shaft 21 and swing arm 23 set in each conveying pipe 11 can improve the anti-clogging performance of the entire pipeline.

[0040] The working principle of this utility model is as follows: The output shaft of the motor is connected to the input end of the auger conveyor via a coupling. A sealing flange for sealing the motor output shaft is provided on the outside of the storage tank 10, and a sealing ring is provided inside the sealing flange. The auger conveyor feeds the material in the storage tank 10 into the conveying pipe 11 to achieve material conveying. The support frame 20 supports the main shaft 21 to maintain stable axial rotation. The main shaft 21 is connected to the end of the spiral blades of the auger conveyor via a flange. The auger conveyor drives the main shaft 21 to rotate, and the main shaft 21 drives each fixed ring 22 and multiple... The swing arm 23 rotates in a circle, and multiple swing arms 23 are thrown out under the action of centrifugal force, continuously squeezing and shearing the material in the conveying pipe 11, effectively destroying the adhering coating layer and deposits. By hinged to the end of the swing arm 23, the swing hammer 24 enhances the hammering effect on the material near the inner wall of the conveying pipe 11. Multiple conveying pipes 11 are connected to form a conveying pipeline through the connecting flange 12. When two adjacent conveying pipes 11 are connected, the insertion protrusion 25 can be inserted into the insertion hole of another main shaft 21, thereby realizing the synchronous movement of the main shaft 21 in each conveying pipe 11. The pipeline length can be adjusted according to the requirements.

[0041] Both the swing arm 23 and the pendulum 24 are made of ultra-high molecular weight polyethylene (UHMW-PE) or reinforced nylon (PA66-GF30). Their material properties must meet the following requirements: Shore hardness D ≥ 65, and abrasion resistance (Akron abrasion loss) < 0.03 cm. 3 / 1.61km, and meets food-grade or pharmaceutical-grade hygiene standards to ensure that it will not contaminate materials under long-term wear and has sufficient impact resistance.

[0042] The rotational speed of the auger conveyor should be controlled within the range of 50-200 rpm to ensure that the main shaft 21 can generate sufficient centrifugal force. The relationship between the length L of the swing arm 23 and the inner diameter D of the conveying pipe 11 is: L = (0.4 ~ 0.45) * D. When the swing arm 23 is fully extended under the action of centrifugal force, the minimum gap between the pendulum 24 at its end and the inner wall of the conveying pipe 11 should be maintained at 5~10 mm, so as to effectively hammer the material and avoid direct impact on the pipe wall to prevent damage.

[0043] The insertion protrusion 25 is an involute spline shaft, and the corresponding insertion hole is a spline sleeve. The spline connection has an automatic centering function, which can compensate for a certain centering error and transmit greater torque. At the same time, a positioning stop is added to the end face of the connecting flange 12 to further ensure the concentricity of the two sections of the conveying pipe 11 and the main shaft 21;

[0044] The bottom of the conveying pipe 11 may have a cleaning port or a drain port (not shown in the figure) and be sealed with a flange cover. The connection method of the connecting flange 12 allows each section of the conveying pipe 11 to be quickly disassembled in order to thoroughly clean or replace the internal main shaft 21 and swing arm 23 assembly.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A material conveying anti-blocking structure for polyvinyl chloride anticorrosive paint production, characterized in that, include: Storage tank (10), a screw conveyor is fixedly installed inside the storage tank (10), and a conveying pipe (11) is fixedly connected to the output end of the screw conveyor. A hammering structure is installed inside the conveying pipe (11) to suppress material blockage. The hammering structure includes a support frame (20), a main shaft (21), a fixing ring (22), and a swing arm (23). The main shaft (21) is rotatably installed inside the conveying pipe (11) via the support frame (20). The main shaft (21) extends radially along the conveying pipe (11). Several fixing rings (22) are fixedly installed on the main shaft (21). Each fixing ring (22) is rotatably connected to several swing arms (23). The main shaft (21) is connected to the blades of the auger conveyor.

2. The anti-blocking structure for material conveying in the production of polyvinyl chloride anti-corrosion coatings according to claim 1, characterized in that: The end of the conveying pipe (11) is welded with a connecting flange (12), and two adjacent conveying pipes (11) can be locked together by the connecting flange (12).

3. The anti-blocking structure for material conveying in the production of polyvinyl chloride anti-corrosion coatings according to claim 1, characterized in that: The support frame (20) is fixedly installed inside the conveying pipe (11). The support frame (20) is equipped with bearings, and the main shaft (21) is axially connected to the support frame (20) through the bearings.

4. The anti-blocking structure for material conveying in the production of polyvinyl chloride anti-corrosion coatings according to claim 1, characterized in that: The fixing ring (22) is annular, and the central hole of the fixing ring (22) is clearance-fitted with the main shaft (21). The main shaft (21) passes through the central hole of the fixing ring (22) and is fully welded and fixed.

5. The anti-blocking structure for material conveying in the production of polyvinyl chloride anti-corrosion coatings according to claim 1, characterized in that: The swing arm (23) is an arc-shaped plate. The circumferential surface of the fixing ring (22) is provided with an annular groove. The end of the swing arm (23) is located in the annular groove. A pin is fixedly installed in the annular groove. The swing arm (23) is provided with a shaft hole. The pin passes through the shaft hole.

6. The anti-blocking structure for material conveying in the production of polyvinyl chloride anti-corrosion coatings according to claim 1, characterized in that: The hammering structure also includes a pendulum (24), which is rotatably mounted at the end of the swing arm (23) and does not interfere with the inner wall of the delivery pipe (11).

7. The anti-blocking structure for material conveying in the production of polyvinyl chloride anti-corrosion coatings according to claim 1, characterized in that: The hammering structure also includes a plug-in protrusion (25), which is fixedly installed at the end of the spindle (21). The plug-in protrusion (25) is integrally formed with the spindle (21). The other end of the spindle (21) is provided with a socket that is clearance-fitted with the plug-in protrusion (25). The plug-in protrusion (25) can be inserted into the socket of another spindle (21).

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