A discharge device for a material pumping machine

Abstract

The utility model discloses a kind of discharging device of material beating pump, belong to material beating pump technical field, comprising: discharging shell, discharging shell has guide material cavity, discharging shell lower portion is provided with discharge port, the first end of discharging shell is connected with the discharge port of material beating pump, discharge port has discharging cavity, discharging cavity is communicated with guide material cavity, discharge port and the second end of discharging shell are adjacent;Guide material part, partial guide material part is arranged in guide material cavity, another partial guide material part is arranged in discharging cavity, partial guide material part is movably connected with discharging shell, another partial guide material part is movably connected with discharge port.The utility model can effectively guide high viscosity material flow by guide material part, substantially reduce the material residual rate in pipeline outlet and device, save the step of frequent manual cleaning, significantly reduce material flow resistance simultaneously, avoid pressure fluctuation in conveying process, practically guarantee the stability of subsequent production process, improve the efficiency and reliability of high viscosity material conveying operation.

Description

Technical Field

[0001] This utility model discloses a discharge device for a feeding pump, belonging to the field of feeding pump technology. Background Technology

[0002] In the coatings and paints industry, the conveying of high-viscosity materials faces more complex challenges. These materials not only contain a mixture of multiple components such as resin, pigment particles, and solvents, but also exhibit significant viscosity fluctuations with temperature changes. At low temperatures, they tend to be paste-like, while at high temperatures, although they are slightly fluid, they still have strong adhesion. Traditional discharge devices are limited by unreasonable structural problems such as single straight pipe design, lack of flow guiding structure, and insufficient smoothness of the inner wall of the pipe. When conveying such materials, the problem of material residue at the pipe outlet is particularly prominent, with a residue rate often exceeding 1%. This residue is not a simple liquid adhesion, but a semi-cured adhesive layer formed by pigment particles and resin components on the inner wall of the pipe. Especially at pipe corners and outlet valve gaps, the residual material gradually accumulates and clumps, not only wasting tens of kilograms of material per ton of coatings and paints produced, but more seriously, if not thoroughly cleaned, the new batch of material conveyed later will mix with the residual old material, leading to color deviation, decreased gloss, and imbalance of component ratios in the coatings, directly affecting the stability of product quality, and even causing customer complaints and batch rework.

[0003] To solve this problem, companies need to assign dedicated personnel to clean the pipes using scrapers, solvent soaking, and other methods. Since the inner diameter of the pipes is usually only 50-150mm, operators need to insert their arms into the pipes or disassemble pipe joints. Each cleaning takes 1-2 hours, which not only increases labor costs but also prolongs equipment downtime and disrupts continuous production. At the same time, the organic solvents used in the cleaning process are volatile, which not only harms the health of operators but also requires additional disposal of waste solvents, further increasing the complexity of the operation and environmental costs.

[0004] Furthermore, when high-viscosity coatings and paints flow in the pipes of traditional equipment, the strong intermolecular forces within the material and the high frictional resistance between pigment particles and the pipe wall, coupled with the design flaws of traditional pipes lacking gradual diameter changes and auxiliary flow guiding structures, easily lead to "embolism" movement. This means that the material at the front end moves slowly under the pressure of the pump, while the material at the rear accumulates due to resistance, forming a high-pressure zone. When the pressure reaches a critical value, it is suddenly released, causing severe pressure fluctuations during the conveying process. These fluctuations directly affect subsequent processes. More seriously, frequent pressure fluctuations can impact pump seals and pipe interfaces, leading to seal failure and material leakage. Leaked coatings not only contaminate the production workshop floor and require additional manpower for cleanup, but leaked solvents also pose fire safety hazards, further increasing the difficulty and risk of production management. Utility Model Content

[0005] The purpose of this invention is to solve the problems of traditional discharge devices in conveying high-viscosity materials, and to propose a discharge device for a material pump.

[0006] The problem to be solved by this utility model is achieved by the following technical solution: A discharge device for a feeding pump includes: a discharge housing having a guiding chamber and a discharge port located below the discharge housing; a first end of the discharge housing being connected to the discharge port of the feeding pump; the discharge port having a discharge chamber communicating with the guiding chamber; and the discharge port being adjacent to a second end of the discharge housing; and a guiding section, part of which is disposed within the guiding chamber and another part of which is disposed within the discharge chamber; part of which is movably connected to the discharge housing and the other part of which is movably connected to the discharge port.

[0007] Furthermore, the discharge device also includes a motor, the main shaft of which is connected to the input end of the guide section, and the motor is spaced apart from the discharge housing and the feeding pump.

[0008] Furthermore, the discharge device also includes: a discharge solenoid valve, which is spaced apart from the feeding pump and the guiding section, and is connected to the discharge port.

[0009] Furthermore, the material guiding section includes: a rotating shaft extending axially along the discharge housing; a material guiding assembly sleeved on a portion of the rotating shaft and disposed within the discharge chamber; and a material stirring assembly sleeved on a portion of the rotating shaft, disposed adjacent to the material guiding assembly and disposed within the material guiding chamber.

[0010] Furthermore, the material guiding assembly includes: a spiral blade, which is sleeved on a portion of the rotating shaft, and guides the slurry from the discharge chamber into the guiding chamber; and a scraper, which is connected to the outer edge of the spiral blade and is movably engaged with the inner side of the discharge port.

[0011] Furthermore, the mixing assembly includes: a mixing sleeve, comprising multiple mixing sleeves, which are spaced apart along the axial direction of the rotating shaft and are respectively connected to the rotating shaft; a connecting plate assembly, comprising multiple connecting plate assemblies, which are arranged one-to-one with the mixing sleeves, each connecting plate assembly including multiple connecting plate units, which are spaced apart along the outer circumferential direction of the mixing sleeve, and the first end of the multiple connecting plate units is connected to the outer side of the mixing sleeve; and a connecting rod, comprising multiple connecting rods, which are spaced apart along the circumferential direction of the mixing sleeve, which are arranged one-to-one with the multiple connecting plate units, and the other end of the multiple connecting plate units is axially connected through the corresponding connecting rod.

[0012] Furthermore, the mixing assembly also includes: a stirring spring, which is sleeved on the outside of multiple connecting rods, connected to multiple connecting rods, and movably engaged with the inside of the discharge housing. The stirring spring is used to guide the slurry to the discharge port.

[0013] The advantages of this invention compared to existing technologies are as follows: This utility model discloses a discharge device for a feeding pump. Through the material guiding section, it can effectively guide the flow of high-viscosity materials, significantly reduce the material residue rate at the pipe outlet and inside the device, eliminate the need for frequent manual cleaning, and at the same time significantly reduce the material flow resistance, avoid pressure fluctuations during the conveying process, effectively ensure the stability of subsequent production processes, and improve the efficiency and reliability of high-viscosity material conveying operations. Attached Figure Description

[0014] Figure 1 This is an isometric side view of the first embodiment of the discharge device of a feeding pump according to this utility model.

[0015] Figure 2 This is a partial isometric side view of the second embodiment of the discharge device of the feeding pump of this utility model.

[0016] Figure 3 This is an isometric side view of the first embodiment of the material guiding section in the discharge device of a material pump according to this utility model.

[0017] Among them, 10-feeding pump, 20-discharge housing, 201-discharge port, 30-guide section, 301-rotating shaft, 302-spiral blade, 303-stirring sleeve, 304-connecting plate unit, 305-connecting rod, 306-stirring spring, 40-motor, 50-discharge solenoid valve. Detailed Implementation

[0018] The following is based on the appendix Figures 1-3 Further explanation of this utility model: The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] like Figure 1 and Figure 2 As shown, the first embodiment of this utility model provides a discharge device for a feeding pump based on the prior art, including: a discharge housing 20, the discharge housing 20 having a guiding cavity, a discharge port 201 provided below the discharge housing 20, the first end of the discharge housing 20 being connected to the discharge port 101 of the feeding pump 10, the discharge port 101 having a discharge cavity communicating with the guiding cavity, and the discharge port 201 being adjacent to the second end of the discharge housing 20; a guiding part 30, a portion of the guiding part 30 being disposed in the guiding cavity, and another portion of the guiding part 30 being disposed in the discharge cavity, a portion of the guiding part 30 being movably connected to the discharge housing 20, and the other portion of the guiding part 30 being movably connected to the discharge port 101.

[0022] In this embodiment, by setting a discharge housing 20 with a guiding cavity, the first end of the discharge housing 20 is connected to the discharge port 101 of the feeding pump 10 with the discharge cavity, and the two cavities are connected. At the same time, the discharge port 201 is located below the discharge housing 20 and adjacent to the second end of the discharge housing 20. With the help of the guiding part 30, which is partially located in the guiding cavity and partially located in the discharge cavity and is movably connected to the discharge housing 20 and the discharge port 101 respectively, the high-viscosity material can be smoothly guided between the guiding cavity and the discharge cavity by the movement of the guiding part 30. This effectively reduces the adhesion and residue of material on the inner wall of the discharge housing 20, the discharge port 101 and the pipe outlet, greatly reducing the residue rate, thereby reducing the need for manual cleaning, reducing labor costs and operational complexity; at the same time, the guiding part 30 The guiding effect on material flow can also reduce the resistance of high-viscosity materials during the flow process, avoid the fluctuation of conveying pressure caused by excessive resistance, and ensure the stability of material supply for subsequent processes. It is especially suitable for fields such as coatings and paint processing that have high requirements for the accuracy and continuity of material conveying, thereby improving overall production efficiency and product quality stability.

[0023] Furthermore, the discharge device also includes a motor 40, the main shaft of which is connected to the input end of the material guiding section 30. The motor 40 is spaced apart from the discharge housing 20 and the feeding pump 10. The motor 40, connected to the input end of the material guiding section 30 via its main shaft, provides stable power to the material guiding section 30, driving it to more actively guide the high-viscosity material to flow between the discharge chamber of the discharge port 101 and the guiding chamber of the discharge housing 20. This further reduces the material residue rate on the inner wall of the discharge housing 20, at the discharge port 101, and at the discharge outlet 201, reducing the frequency of manual cleaning. Meanwhile, the motor 40 is spaced apart from the discharge housing 20 and the feeding pump 10, which can avoid the vibration of the feeding pump 10 during operation and the temperature of the material in the discharge housing 20 from affecting the motor 40, ensuring the stability of the motor 40's operation, thereby ensuring the continuous and efficient operation of the guiding section 30, more effectively reducing material flow resistance, suppressing pressure fluctuations, and improving the stability of material supply to subsequent processes. It is especially suitable for conveying high-viscosity materials with high requirements for power reliability.

[0024] In this embodiment, the discharge device further includes a discharge solenoid valve 50, which is spaced apart from the feeding pump 10 and the guide section 30, and connected to the discharge port 201. The discharge solenoid valve 50, connected to the discharge port 201, can precisely control the opening and closing state of the discharge port 201. Combined with the guiding section 30's role in guiding high-viscosity materials within the guiding chamber of the discharge housing 20 and the discharge chamber of the feeding pump 10's discharge port 101, this enables timed and quantitative control of material discharge, avoiding material overflow and uneven flow problems that easily occur during traditional manual discharge, thus improving discharge accuracy.

[0025] When the unloading solenoid valve 50 is closed and unloading is paused, the guide section 30 can still continue to operate under the stable power provided by the motor 40, constantly stirring the high-viscosity material remaining in the discharge chamber of the discharge housing 20 and the discharge port 101 of the feeding pump 10. This effectively prevents the material from drying and caking due to being left near the guide chamber, discharge port 101 and discharge port 201, fundamentally preventing the dried material from blocking the discharge port 201 and discharge port 101. This eliminates the trouble of frequently disassembling and cleaning the discharge housing 20 and cleaning the discharge port 201 due to blockage, reduces equipment downtime for maintenance, and lowers the complexity of operation and maintenance costs.

[0026] In one exemplary embodiment, such as Figure 3 As shown, the material guiding section 30 includes: a rotating shaft 301, which extends along the axial direction of the discharge housing 20; a material guiding assembly, which is sleeved on a portion of the rotating shaft 301 and disposed within the discharge chamber; and a stirring assembly, which is sleeved on a portion of the rotating shaft 301 and disposed adjacent to the material guiding assembly, disposed within the material guiding chamber.

[0027] In this embodiment, the rotating shaft 301 of the guiding section 30 extends axially along the discharge housing 20, providing stable rotational support for the guiding assembly and the mixing assembly, ensuring their synchronous operation. The guiding assembly is sleeved on a portion of the rotating shaft 301 and located within the discharge chamber of the discharge port 101, actively guiding the high-viscosity material discharged by the feeding pump 10 towards the guiding chamber of the discharge housing 20, reducing material residue on the inner wall of the discharge port 101. The mixing assembly is sleeved on a portion of the rotating shaft 301 and located adjacent to the guiding assembly within the guiding chamber, continuously agitating the material entering the guiding chamber. This, combined with the guiding assembly, forms a relay-type conveying system, enhancing the fluidity of the material within the guiding chamber to reduce resistance and avoid pressure fluctuations. Furthermore, when the discharge solenoid valve 50 is closed, it works in conjunction with the guiding assembly to prevent material from drying and caking near the guiding chamber and discharge port 201, further reducing the risk of blockage. Simultaneously, the rotating shaft 301... The axial extension design ensures the continuity of material guiding and mixing actions, improving the overall material conveying efficiency and stability, and is especially suitable for the characteristics of high-viscosity materials such as coatings and paints.

[0028] Furthermore, the material guiding assembly includes: a spiral blade 302, which is sleeved on a portion of the rotating shaft 301, and guides the slurry from the discharge chamber into the guiding chamber; and a scraper, which is connected to the outer edge of the spiral blade 302 and is movably engaged with the inner side of the discharge port 101. The spiral blade 302 is mounted on a portion of the rotating shaft 301. When rotating synchronously with the rotating shaft 301, it actively and smoothly guides the high-viscosity slurry (such as paint or varnish) from the discharge chamber of the discharge port 101 of the feed pump 10 into the guide chamber of the discharge housing 20. Compared with the traditional guide method without a spiral structure, this significantly enhances the directionality and smoothness of material conveying, effectively reduces the flow resistance of the slurry at the junction of the discharge chamber and the guide chamber, and avoids pressure fluctuations caused by resistance accumulation. At the same time, the scraper connected to the outer edge of the spiral blade 302 moves and cooperates with the inner side of the discharge port 101 during the rotation of the spiral blade 302. It can scrape off the slurry residue adhering to the inner wall of the discharge port 101 in real time, completely solving the problem of easy material accumulation and clumping on the inner wall of the discharge port 101 in traditional devices. This avoids quality problems such as paint color deviation and uneven composition caused by the mixing of new slurry and old residue.

[0029] In this embodiment, the mixing assembly includes: a mixing sleeve 303, of which multiple mixing sleeves 303 are spaced apart along the axial direction of the rotating shaft 301, and each mixing sleeve 303 is connected to the rotating shaft 301; a connecting plate assembly, of which multiple connecting plate assemblies are arranged in a one-to-one correspondence with the mixing sleeves 303, each connecting plate assembly including multiple connecting plate units 304, which are spaced apart along the outer circumferential direction of the mixing sleeves 303, and the first end of each connecting plate unit 304 is connected to the outer side of the mixing sleeves 303; and a connecting rod 305, of which multiple connecting rods 305 are spaced apart along the circumferential direction of the mixing sleeves 303, and each connecting rod 305 is arranged in a one-to-one correspondence with the multiple connecting plate units 304, and the other end of each connecting plate unit 304 is axially connected through the corresponding connecting rod 305.

[0030] In this embodiment, multiple agitator sleeves 303 are spaced apart along the axial direction of the rotating shaft 301 and connected to the rotating shaft 301. When rotating synchronously with the rotating shaft 301, they can cover different axial areas of the material guide cavity of the discharge housing 20, preventing high-viscosity materials (such as coatings and paint slurries) from accumulating in the material guide cavity and forming dead corners. In the connecting plate assembly corresponding to each agitator sleeve 303, multiple connecting plate units 304 are distributed circumferentially along the outer side of the agitator sleeve 303 and connected to the agitator sleeve 303 at their first ends. During rotation, they can agitate the material in the material guide cavity in multiple directions without dead corners, destroying the tendency of molecular aggregation inside the material and greatly improving the material flowability. Together with the spiral blades 302 of the material guide assembly, the material is smoothly introduced from the discharge cavity of the discharge port 101 of the feeding pump 10 into the material guide cavity, further reducing the material flow resistance and effectively avoiding the impact of conveying pressure fluctuations on subsequent processes. At the same time, multiple connecting rods 305 are spaced apart circumferentially along the agitator sleeve 303 and connected to the connecting plate units 304. The one-to-one, axially connected connecting plate unit 304 at the other end not only enhances the structural strength of the connecting plate unit 304 during high-speed rotation, preventing deformation or breakage due to material resistance, but also assists in agitating the axial material in the guide chamber through the axial extension of the connecting rod 305, further optimizing the material mixing and flow effect. Especially when the discharge solenoid valve 50 is closed, the agitation component can work in conjunction with the scraper of the guide component to continuously agitate the residual material in the material chamber, completely preventing the material from drying and caking and clogging the discharge port 201, reducing the frequency and cost of manual disassembly and cleaning, and reducing the residual rate of material on the inner wall of the guide chamber, ensuring smooth material discharge when restarting the discharge, significantly improving the stability and reliability of the device for conveying high-viscosity materials, and making it more suitable for scenarios with strict requirements for material flowability and conveying continuity, such as coating and paint processing.

[0031] Furthermore, the mixing assembly also includes a stirring spring 306, which is sleeved on the outside of multiple connecting rods 305. The stirring spring 306 is connected to the multiple connecting rods 305 and is movably engaged with the inside of the discharge housing 20. The stirring spring 306 is used to guide the slurry to the discharge port 201. The stirring spring 306 is sleeved on the outside of multiple connecting rods 305 and connected to them. When it rotates synchronously with the rotating shaft 301, its spiral structure actively guides the high-viscosity slurry (such as paint or varnish) in the discharge housing 20 to the discharge port 201, enhancing the material's convergence at the discharge point and improving discharge efficiency. Simultaneously, the stirring spring 306 moves in conjunction with the inner side of the discharge housing 20, scraping away residual slurry adhering to the inner wall of the discharge housing in real time. Combined with the circumferential stirring of the connecting plate unit 304 and the axial assistance of the connecting rods 305, it further eliminates dead zones of material accumulation in the discharge housing, reducing the residue rate to an even lower level. Furthermore, the elastic structure of the stirring spring 306 adapts to the characteristics of slurries of different viscosities. During stirring, it maintains effective material delivery while buffering the resistance from high-viscosity materials, reducing the load on the rotating shaft 301. Especially when the discharge solenoid valve 50 is closed, the stirring spring 306... Working in conjunction with the stirring sleeve 303 and the connecting plate unit 304, the material is continuously stirred, which can more thoroughly prevent the slurry from drying and clumping near the guide chamber and discharge port 201, thus avoiding blockage at the source and reducing the need for manual cleaning. At the same time, it ensures that the material can be discharged quickly and smoothly through the guidance of the stirring spring 306 when restarting the unloading process. This significantly improves the orientation, stability and reliability of the device for conveying high-viscosity slurries, and is more suitable for the stringent requirements of material conveying accuracy and continuity in coating and paint processing.

[0032] Although embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. It can be applied to various fields suitable for this utility model. Other modifications can be readily implemented by those skilled in the art. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and examples shown and described herein.

Claims

1. A discharge device for a feeding pump, characterized in that, include: The discharge housing (20) has a material guiding cavity and a discharge port (201) is provided below the discharge housing (20). The first end of the discharge housing (20) is connected to the discharge port (101) of the feeding pump (10). The discharge port (101) has a discharge cavity, which is connected to the material guiding cavity. The discharge port (201) is adjacent to the second end of the discharge housing (20). The material guide (30) is partially disposed in the material guide cavity and partially disposed in the discharge cavity. Part of the material guide (30) is movably connected to the discharge housing (20) and the other part of the material guide (30) is movably connected to the discharge port (101).

2. The discharge device of the feeding pump according to claim 1, characterized in that, The discharge device further includes: The motor (40) has its main shaft connected to the input end of the guide section (30), and the motor (40) is spaced apart from the discharge housing (20) and the feeding pump (10).

3. The discharge device of the feeding pump according to claim 1 or 2, characterized in that, The discharge device further includes: The discharge solenoid valve (50) is provided at intervals with the feeding pump (10) and the guide section (30), and the discharge solenoid valve (50) is connected to the discharge port (201).

4. The discharge device of the feeding pump according to claim 3, characterized in that, The material guiding section (30) includes: A rotating shaft (301) is provided, which extends along the axial direction of the discharge housing (20); A material guiding assembly is sleeved on a portion of the rotating shaft (301) and disposed within the discharge chamber; A mixing assembly is sleeved on a portion of the rotating shaft (301), the mixing assembly is disposed adjacent to the guiding assembly, and the mixing assembly is disposed within the guiding cavity.

5. The discharge device of the feeding pump according to claim 4, characterized in that, The feeding assembly includes: A helical blade (302) is sleeved on a portion of the rotating shaft (301), and the helical blade (302) guides the slurry from the discharge chamber into the guide chamber; The scraper is connected to the outer edge of the spiral blade (302) and is movably engaged with the inner side of the discharge port (101).

6. The discharge device of the feeding pump according to claim 5, characterized in that, The mixing assembly includes: A mixing sleeve (303) is provided, comprising a plurality of mixing sleeves (303), which are spaced apart along the axial direction of the rotating shaft (301), and are respectively connected to the rotating shaft (301); A connecting plate assembly, comprising multiple connecting plate assemblies, each of which is configured in a one-to-one correspondence with the mixing sleeve (303). Each connecting plate assembly includes multiple connecting plate units (304), which are spaced apart circumferentially along the outer side of the mixing sleeve (303). The first end of each of the multiple connecting plate units (304) is connected to the outer side of the mixing sleeve (303). Connecting rod (305), including multiple connecting rods (305), the multiple connecting rods (305) are arranged at intervals along the circumference of the stirring sleeve (303), the multiple connecting rods (305) are arranged one-to-one with multiple connecting plate units (304), and the other end of the multiple connecting plate units (304) is axially connected through the corresponding connecting rod (305).

7. The discharge device of the feeding pump according to claim 6, characterized in that, The mixing assembly further includes: A stirring spring (306) is sleeved on the outside of a plurality of connecting rods (305). The stirring spring (306) is connected to the plurality of connecting rods (305). The stirring spring (306) is movably engaged with the inside of the discharge housing (20). The stirring spring (306) is used to guide the slurry to the discharge port (201).

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