Conveying shaft cleaning mechanism of screw feeder

Abstract

The conveying shaft cleaning mechanism of the screw feeder comprises a bottom plate, a supporting seat is fixedly installed on the top of the bottom plate, a shell is installed inside the upper end of the supporting seat in an embedded mode, a conveying shaft is installed inside the shell, and a conveying auger is installed on the surface of the conveying shaft in a winding mode. The scraper blade and the electric cylinder are arranged, the electric cylinder can drive the scraper blade to move up and down, so that materials attached to the surfaces of the conveying shaft and the conveying auger are cleaned, the cleaning effect is good, the automation degree is high, the labor intensity is reduced, meanwhile, the buffer spring can play a buffering role when the scraper blade is subjected to large impact force, and the service life of the scraper blade is prolonged. And cleaning liquid can be sprayed to the surfaces of the conveying shaft and the conveying auger in the cleaning process through the arrangement of a spraying pipe and a spraying head, the cleaning effect is further improved, a connecting water pipe is conveniently connected with an external water source, and use is convenient.

Description

Technical Field

[0001] This utility model relates to the field of screw feeder technology, specifically to a screw feeder conveyor shaft cleaning mechanism. Background Technology

[0002] Screw feeders are a common type of conveying equipment, widely used in industries such as chemical, food, and metallurgy. During the operation of a screw feeder, the conveying auger on the conveying shaft transports materials, which tend to adhere to the surface of the conveying shaft and the auger. Over time, the adhered materials will gradually accumulate, which will not only affect the conveying efficiency but may also lead to increased wear on the conveying shaft and reduce the service life of the equipment.

[0003] Currently, the existing methods for cleaning the conveyor shaft of screw feeders typically involve manual cleaning. This method is not only labor-intensive and inefficient, but also poses certain safety hazards during the cleaning process. The cleaning effect is unsatisfactory, and the maintenance cost is high. Utility Model Content

[0004] The purpose of this invention is to provide a conveyor shaft cleaning mechanism for a screw feeder, which has the advantage of being able to clean residual materials on the surface of the conveyor shaft and the conveyor auger.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a conveyor shaft cleaning mechanism for a screw feeder, comprising a base plate, a support seat fixedly installed on the top of the base plate, a housing embedded in the upper end of the support seat, a conveyor shaft installed inside the housing, a conveyor auger wound around the surface of the conveyor shaft, a scraper fitted to the upper surface of the conveyor shaft, an adjusting plate fixedly installed on the upper end of the scraper, and an electric cylinder installed at the center of the top of the adjusting plate via a rubber pad.

[0006] As a preferred embodiment, a positioning frame is installed on the front of the support base. The bent portion at the upper end of the positioning frame extends above the adjustment plate and a limiting vertical plate is provided through both ends. The lower end of the limiting vertical plate is connected to the adjustment plate, and the upper end is fixedly installed with a limiting plate.

[0007] As a preferred embodiment, slide rods are vertically installed on both sides of the front of the support base. The front end of the slide rod is embedded into the interior of the lower end of the positioning frame and connected by an adjustment knob. The locking end of the adjustment knob is securely connected to the support base.

[0008] As a preferred embodiment, a top fixing frame is fixedly installed on the back of the support base, and the bent portion at the upper end of the top fixing frame is connected to the top of the electric cylinder.

[0009] As a preferred embodiment, a buffer spring is fixedly installed on the top of the adjusting plate and inside the limiting vertical plate, and the upper end of the buffer spring is connected to the bent part of the upper end of the positioning frame.

[0010] As a preferred embodiment, the upper end of the positioning frame has a through groove, and spray pipes are installed on both sides of the through groove cavity through a reinforcing plate and a support shaft. The back of the spray pipe is connected to a nozzle, and the right side of the front of the spray pipe is connected to a water pipe.

[0011] As a preferred embodiment, the scraper has a buffer layer bonded to its surface, and one side of the conveying auger contacts the buffer layer when it rotates. The scraper is designed to move above the conveying shaft.

[0012] As a preferred embodiment, the upper end of the positioning frame has an internal movable hole, and one end of the electric cylinder passes through the movable hole and extends downward.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model, by setting up a scraper and an electric cylinder, can drive the scraper to move up and down, thereby cleaning the material adhering to the surface of the conveyor shaft and the conveyor auger. The cleaning effect is good, the degree of automation is high, and the labor intensity is reduced. At the same time, the setting of the buffer spring can play a buffering role when the scraper is subjected to a large impact force, protecting the scraper and other components. The setting of the spray pipe and nozzle can spray cleaning liquid onto the surface of the conveyor shaft and the conveyor auger during the cleaning process, further improving the cleaning effect. The connection of the water pipe facilitates connection with the external water source, making it convenient to use.

[0015] 2. This utility model provides a stable support and positioning base for the relevant components of the entire cleaning mechanism through the positioning frame. The limiting vertical plate passes through the positioning frame and is connected to the adjusting plate, ensuring that the movement of the adjusting plate in the vertical direction is along a predetermined path, avoiding the scraper from deviating during the cleaning process, and ensuring the precise fit between the scraper and the conveying shaft and conveying auger, thereby improving the cleaning effect and accuracy. The limiting plate is installed at the upper end of the limiting vertical plate, which can limit the maximum upward movement distance of the adjusting plate. This design effectively prevents the electric cylinder from excessively rising when driving the adjusting plate and scraper, avoiding component damage or cleaning function failure due to excessive displacement, and ensuring the safety and reliability of the cleaning mechanism. Attached Figure Description

[0016] Figure 1 This is a first-person perspective structural perspective view of the present invention;

[0017] Figure 2 This is a second-view perspective structural perspective view of the present invention;

[0018] Figure 3 This is a partial structural cross-sectional view of the present invention;

[0019] Figure 4 This is a partial structural cross-sectional view of the present invention from another perspective.

[0020] In the diagram: 1. Base plate; 2. Support base; 3. Outer shell; 4. Conveyor shaft; 5. Conveyor auger; 6. Scraper; 7. Buffer layer; 8. Adjusting plate; 9. Positioning frame; 10. Slide rod; 11. Adjusting knob; 12. Electric cylinder; 13. Top fixing frame; 14. Limiting vertical plate; 15. Buffer spring; 16. Rubber pad; 17. Limiting plate; 18. Spray pipe; 19. Spray head; 20. Connecting water pipe. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0023] Example 1:

[0024] Please see Figure 1 As shown, this utility model provides a conveyor shaft cleaning mechanism for a screw feeder, including a base plate 1, a support seat 2 fixedly installed on the top of the base plate 1, a housing 3 embedded inside the upper end of the support seat 2, a conveyor shaft 4 installed inside the housing 3, a conveyor auger 5 wound around the surface of the conveyor shaft 4, a scraper 6 attached to the upper surface of the conveyor shaft 4, an adjusting plate 8 fixedly installed at the upper end of the scraper 6, and an electric cylinder 12 installed at the center of the top of the adjusting plate 8 through a rubber pad 16.

[0025] This technical solution uses a scraper 6 and an electric cylinder 12 to drive the scraper 6 to move up and down, thereby cleaning the material adhering to the surface of the conveyor shaft 4 and the conveyor auger 5. The cleaning effect is good, the degree of automation is high, and the labor intensity is reduced. At the same time, the buffer spring 15 can buffer the scraper 6 when it is subjected to a large impact force, protecting the scraper 6 and other components. The spray pipe 18 and the nozzle 19 can spray cleaning fluid onto the surface of the conveyor shaft 4 and the conveyor auger 5 during the cleaning process, further improving the cleaning effect. The water pipe 20 can be connected to an external water source for easy use.

[0026] Example 2:

[0027] Based on Embodiment 1, this utility model is as follows: Figure 1 As shown, a positioning frame 9 is installed on the front of the support base 2. The bent part at the upper end of the positioning frame 9 extends to the top of the adjustment plate 8 and a limiting vertical plate 14 is provided through both ends. The lower end of the limiting vertical plate 14 is connected to the adjustment plate 8, and the upper end is fixedly installed with a limiting plate 17. Slide rods 10 are vertically installed on both sides of the front of the support base 2. The front end of the slide rod 10 is embedded in the lower end of the positioning frame 9 and connected by an adjustment knob 11. The locking end of the adjustment knob 11 is fastened to the support base 2.

[0028] Adopting such Figure 1 The technical solution shown provides a stable support and positioning base for the relevant components of the entire cleaning mechanism. The limiting vertical plate 14 passes through the positioning frame 9 and is connected to the adjusting plate 8, ensuring that the vertical movement of the adjusting plate 8 follows a predetermined path. This prevents the scraper 6 from shifting during cleaning and ensures precise contact between the scraper 6 and the conveying shaft 4 and the conveying auger 5, thereby improving the cleaning effect and accuracy. The limiting plate 17 is installed at the upper end of the limiting vertical plate 14, limiting the maximum upward movement distance of the adjusting plate 8. This design effectively prevents excessive upward movement of the electric cylinder 12 when driving the adjusting plate 8 and the scraper 6. This design avoids potential component damage or cleaning function failure due to excessive displacement, ensuring the safety and reliability of the cleaning mechanism. The combination of slide bar 10 and adjusting knob 11 allows the height of the positioning frame 9 to be flexibly adjusted according to actual needs. Different models of screw feeders may have different dimensions of conveying shaft 4 and conveying auger 5. By loosening the adjusting knob 11, the positioning frame 9 can move up and down along slide bar 10. After adjusting to a suitable height, tighten the adjusting knob 11 to securely connect the positioning frame 9 to the support base 2. In this way, the cleaning mechanism can adapt to various screw feeders of different specifications, improving the versatility and applicability of the equipment.

[0029] Secondly, in the technical solution, a top fixing frame 13 is fixedly installed on the back of the support base 2, and the bent part at the upper end of the top fixing frame 13 is connected to the top of the electric cylinder 12; a buffer spring 15 is fixedly installed on the top of the adjusting plate 8 and inside the limiting vertical plate 14, and the upper end of the buffer spring 15 is connected to the bent part at the upper end of the positioning frame 9.

[0030] Its adoption is as follows Figure 1 The technical solution shown illustrates that when the scraper 6 contacts the conveying auger 5 for cleaning, the rotation of the conveying auger 5 may generate a large impact force. This impact force is transmitted to the adjusting plate 8. The buffer spring 15 can effectively absorb and buffer these impact forces, reducing damage to the adjusting plate 8, scraper 6, and other related components, protecting the various components of the cleaning mechanism, and extending the overall service life of the equipment. During the cleaning process, due to the unevenness of the surfaces of the conveying shaft 4 and the conveying auger 5, or the different adhesion of the material, the force on the scraper 6 will also change. The buffer spring 15 has a certain elastic deformation capacity and can adaptively adjust according to the actual force on the scraper 6. When the scraper 6 is subjected to a large force, the buffer spring 15 will be compressed, thereby reducing the pressure of the scraper 6 on the conveying auger 5; when the force is small, the buffer spring 15 will restore a certain deformation, so that the scraper 6 maintains proper contact with the conveying auger 5, ensuring the stability of the cleaning effect.

[0031] Example 3:

[0032] This utility model is as follows Figures 1-4 As shown, the upper end of the positioning frame 9 has a through groove, and spray pipes 18 are installed on both sides of the through groove cavity through the cooperation of the reinforcing plate and the support shaft. The back of the spray pipe 18 is connected to the nozzle 19, and the right side of the front of the spray pipe 18 is connected to the connecting water pipe 20. The surface of the scraper 6 is bonded with a buffer layer 7. When the conveying auger 5 rotates, one side contacts the buffer layer 7. The scraper 6 adopts a movable design above the conveying shaft 4. The upper end of the positioning frame 9 has a movable hole, and one end of the electric cylinder 12 passes through the movable hole and extends downward.

[0033] Using the above technical solution, while the scraper 6 is cleaning, the cleaning fluid can further dissolve and rinse the material adhering to the surface of the conveying shaft 4 and the conveying auger 5, enhancing the cleaning effect. Especially for some materials with high viscosity or strong adhesion, the auxiliary effect of the cleaning fluid can make the cleaning more thorough. The spray pipe 18 is installed in the through groove through the cooperation of the reinforcing plate and the support shaft. This installation method gives the spray pipe 18 good stability and makes it less likely to shake or shift during equipment operation. The connecting water pipe 20 connected to the right side of the front of the spray pipe 18 facilitates connection to an external water source or liquid supply system. This connection method allows the cleaning mechanism to flexibly change different cleaning fluids or adjust the liquid supply pressure and flow rate according to actual needs to adapt to different cleaning conditions and material characteristics. The buffer layer 7 bonded to the surface of the scraper 6 comes into contact with the conveying auger 5 when it rotates. The buffer layer 7 usually has a certain degree of elasticity and wear resistance. It can play a buffering role between the scraper 6 and the conveying auger 5, reducing the direct friction and wear of the scraper 6 on the surface of the conveying auger 5, extending the service life of the conveying auger 5, and reducing the maintenance and replacement costs of the equipment.

[0034] The working principle of this utility model is as follows: When using the screw feeder, firstly, according to the dimensions of the conveying shaft 4 and the conveying auger 5, adjust the height of the positioning frame 9 by adjusting the knob 11, and connect the water pipe 20 to an external water source. When cleaning is required, start the electric cylinder 12, which drives the adjusting plate 8 and the scraper 6 to move downwards, so that the scraper 6 contacts the surface of the conveying shaft 4 and the conveying auger 5. At the same time, the cleaning liquid is sprayed onto the surface of the conveying shaft 4 and the conveying auger 5 through the nozzle 19. When the conveying shaft 4 rotates, the scraper 6 scrapes off the material attached to its surface. With the rotation of the conveying shaft 4 and the rinsing of the cleaning liquid, the material is cleaned. During the cleaning process, the limiting vertical plate 14 limits the movement of the adjusting plate 8 and the scraper 6, and the buffer spring 15 can play a buffering role when the scraper 6 is subjected to a large impact force, protecting the scraper 6 and other components.

[0035] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0036] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A conveyor shaft cleaning mechanism for a screw feeder, comprising a base plate (1), characterized in that: A support base (2) is fixedly installed on the top of the base plate (1). A housing (3) is embedded inside the upper end of the support base (2). A conveying shaft (4) is installed inside the housing (3). A conveying auger (5) is wound around the surface of the conveying shaft (4). A scraper (6) is attached to the upper surface of the conveying shaft (4). An adjusting plate (8) is fixedly installed at the upper end of the scraper (6). An electric cylinder (12) is installed at the center of the top of the adjusting plate (8) through a rubber pad (16).

2. The conveyor shaft cleaning mechanism of a screw feeder according to claim 1, characterized in that: A positioning frame (9) is installed on the front of the support base (2). The bent part of the upper end of the positioning frame (9) extends to the top of the adjustment plate (8) and a limiting vertical plate (14) is provided through both ends. The lower end of the limiting vertical plate (14) is connected to the adjustment plate (8), and the upper end is fixedly installed with a limiting plate (17).

3. The conveyor shaft cleaning mechanism of a screw feeder according to claim 1, characterized in that: The support base (2) has vertically mounted sliding rods (10) on both sides of its front. The front end of the sliding rod (10) is embedded into the lower end of the positioning frame (9) and connected by an adjustment knob (11). The locking end of the adjustment knob (11) is securely connected to the support base (2).

4. The conveyor shaft cleaning mechanism of a screw feeder according to claim 1, characterized in that: A top fixing bracket (13) is fixedly installed on the back of the support base (2), and the bent part at the upper end of the top fixing bracket (13) is connected to the top of the electric cylinder (12).

5. The conveyor shaft cleaning mechanism of a screw feeder according to claim 1, characterized in that: A buffer spring (15) is fixedly installed on the top of the adjusting plate (8) and inside the limiting vertical plate (14). The upper end of the buffer spring (15) is connected to the bent part of the upper end of the positioning frame (9).

6. The conveyor shaft cleaning mechanism of a screw feeder according to claim 2, characterized in that: The upper end of the positioning frame (9) has a through groove, and spray pipes (18) are installed on both sides of the through groove cavity through a reinforcing plate and a support shaft. The back of the spray pipe (18) is connected to a nozzle (19), and the right side of the front of the spray pipe (18) is connected to a water pipe (20).

7. The conveyor shaft cleaning mechanism of a screw feeder according to claim 1, characterized in that: The scraper (6) has a buffer layer (7) bonded to its surface. When the conveying auger (5) rotates, one side of it contacts the buffer layer (7). The scraper (6) is designed to move above the conveying shaft (4).

8. The conveyor shaft cleaning mechanism of a screw feeder according to claim 2, characterized in that: The upper end of the positioning frame (9) has an open hole, and one end of the electric cylinder (12) passes through the open hole and extends downward.

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