Anti-clogging single-shaft screw feeder

Abstract

The utility model provides an anti -blocking single -shaft spiral feeding machine relates to single -shaft spiral feeding machine technical field, including the fixed frame, the inside of fixed frame is equipped with fixed mounting mechanism, the inside of fixed mounting mechanism is equipped with feed structure, the outside of fixed mounting mechanism still is equipped with reciprocating knock mechanism, the bottom of feed structure is connected with feeder body, through the synergies of reciprocating knock mechanism and feed structure, drive motor drives knock seat reciprocating movement along the locating block and accurate knock feed box, make feed box produce strong and even vibration, the vibration can directly act on the viscosity (such as flour, wet coal cinder) or hygroscopicity (such as cement, lime powder) material that adheres on the inner wall of feed box, guide flow surface and the inner wall of discharge pipe, forcibly vibrate and fall, avoid the problem that material forms " material layer " with the continuous accumulation of the conveying process completely, reduces the conveying channel blockage hidden danger caused by material accumulation from the source.

Description

Technical Field

[0001] This utility model relates to the field of single-shaft screw feeders, and in particular to a clog-resistant single-shaft screw feeder. Background Technology

[0002] As a continuous material conveying equipment, the single-shaft screw feeder is widely used in chemical, grain processing, building materials, mining and other fields due to its compact structure and stable conveying characteristics. It is mainly used to quantitatively or qualitatively convey granular, powdery or small block materials from storage devices (such as silos) to subsequent production processes (such as mixers, reactors, conveying pipelines, etc.). It is a key piece of equipment connecting the storage and processing links in the production process.

[0003] In existing single-shaft screw feeders, when conveying viscous (such as flour, wet coal slag, and chemical powders) or hygroscopic (such as cement and lime powder) materials, the materials tend to adhere to the inner wall of the feed box, the guide surface of the guide component, and the inner wall of the discharge pipe. As the conveying process continues, these materials accumulate, forming a "material layer" with gradually increasing thickness. At the same time, some granular materials at the bottom of the feed box and the connection with the guide component are prone to forming an "arch-shaped bridge" due to the friction and extrusion force between particles exceeding the gravity. This directly blocks the material from entering the feeder body, resulting in alternating "material interruption" and "material surge".

[0004] Therefore, we propose a clog-resistant single-shaft screw feeder. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a single-shaft screw feeder that is resistant to clogging.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A single-shaft screw feeder with anti-clogging features a fixed frame, a fixed mounting mechanism inside the fixed frame, a feeding structure inside the fixed mounting mechanism, a reciprocating striking mechanism fixed to the outside of the fixed mounting mechanism, and a feeder body connected to the bottom of the feeding structure. The fixed installation mechanism is used to install the feeding structure, and the reciprocating hammering mechanism is used to reciprocate and hammer the feeding structure, causing the feeding structure to vibrate strongly, thereby shaking off the material attached to the feeding structure and avoiding blockage.

[0007] Preferably, the fixed installation mechanism includes an installation box, which is fixedly installed inside the fixed frame. Mounting seats are fixedly connected to the front and back side walls of the installation box. Sliding grooves are provided on the top of the two mounting seats. A connecting groove is also provided on the side wall of the installation box. Positioning blocks are fixed on the top and bottom of the connecting groove.

[0008] Preferably, the feeding structure includes a feeding box, a guide is fixedly connected to the bottom of the feeding box, a discharge pipe is provided at the bottom of the guide, a first flange is provided on the outer side wall of the discharge pipe, a second flange is provided at the connection of the first flange, a feeder connecting hose is connected inside the second flange, a fixing plate is provided on the outer side wall of the feeding box near the top, sliding blocks are provided on both sides of the bottom of the fixing plate, and several compression springs are fixedly connected to the two side walls of the feeding box.

[0009] Preferably, the reciprocating striking mechanism includes a support base, a drive motor is provided on the top of the support base, an output shaft is provided on the front of the drive motor, a connecting rod is provided at the connection of the output shaft, a plug-in shaft is provided inside the connecting rod, a guide rod is provided at the connection of the plug-in shaft, a guide plug-in groove is provided inside the guide rod, a baffle is fixedly connected to the front end of the plug-in shaft, a striking seat is provided on the right side of the guide rod, and guide grooves are provided at the top and bottom of the striking seat.

[0010] Preferably, the feeding box is installed inside the mounting box, and the compression spring is fixedly installed between the feeding box and the mounting box. The fixing plate is slidably connected to the sliding groove of the mounting base through a plurality of sliding blocks.

[0011] Preferably, the drive motor drives the connecting rod to rotate via the output shaft. The connecting rod is inserted into the guide slot of the guide rod via the plug shaft, thereby driving the guide slot of the striking seat to slide at the positioning block. The positioning block is used to limit the movement direction of the striking seat, so that the striking seat can reciprocate to strike the feeding box.

[0012] Compared with the prior art, the beneficial effects of this utility model are: In this invention, through the synergistic action of the reciprocating striking mechanism and the feeding structure, the drive motor drives the striking seat to move back and forth along the positioning block and precisely strike the feeding box, causing the feeding box to generate strong and uniform vibration. This vibration can directly act on the sticky (such as flour, wet coal slag) or hygroscopic (such as cement, lime powder) materials adhering to the inner wall of the feeding box, the guide surface of the guide component, and the inner wall of the discharge pipe, forcibly shaking them off. This completely avoids the problem of materials continuously accumulating and forming a "material layer" during the conveying process, reducing the hidden danger of blockage in the conveying channel caused by material accumulation from the source.

[0013] In the fixed installation mechanism, the mounting box provides elastic support to the feed box via compression springs. Simultaneously, the fixing plate slides with the sliding groove of the mounting base via a sliding block, providing stable movement space for the feed box to withstand vibrations and buffering the impact of striking forces on the equipment. The positioning block precisely limits the movement direction of the striking seat, ensuring stable striking position and uniform force during reciprocating movement. This structural combination not only guarantees the continuity of the anti-clogging effect but also reduces hard wear between components, extending the equipment's service life and balancing operational stability and durability. Attached Figure Description

[0014] Figure 1 A schematic diagram of the main structure of a clog-resistant single-shaft screw feeder provided by this utility model; Figure 2 A schematic diagram of the fixed installation mechanism and feeding structure of an anti-clogging single-shaft screw feeder provided by this utility model; Figure 3 A schematic diagram of the reciprocating striking mechanism of a single-shaft screw feeder for clogging prevention provided by this utility model; Figure 4 This is a partial structural cross-sectional diagram of a single-shaft screw feeder for preventing clogging, provided by this utility model.

[0015] Legend: 10. Fixed frame; 20. Fixed installation mechanism; 201. Mounting box; 202. Connecting groove; 203. Positioning block; 204. Mounting seat; 205. Sliding groove; 30. Feeding structure; 301. Feeding box; 302. Guide; 303. Discharge pipe; 304. First flange; 305. Feeder connecting hose; 306. Second flange; 307. Fixed plate; 308. Sliding block; 309. Compression spring; 40. Feeder body; 50. Reciprocating striking mechanism; 501. Lifting seat; 502. Drive motor; 503. Output shaft; 504. Connecting rod; 505. Insertion shaft; 506. Guide rod; 507. Guide insertion groove; 508. Baffle; 509. Striking seat; 510. Guide groove. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0017] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0018] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. Example

[0020] like Figure 1-4 As shown, this utility model provides a technical solution: a single-shaft screw feeder for preventing blockage, including a fixed frame 10, a fixed mounting mechanism 20 inside the fixed frame 10, a feeding structure 30 inside the fixed mounting mechanism 20, a reciprocating striking mechanism 50 fixed on the outside of the fixed mounting mechanism 20, and a feeder body 40 connected to the bottom of the feeding structure 30. The fixed installation mechanism 20 is used to install the feeding structure 30, and the reciprocating hammering mechanism 50 is used to reciprocate and hammer the feeding structure 30, causing the feeding structure 30 to vibrate strongly, thereby shaking off the material attached to the feeding structure 30 and avoiding blockage.

[0021] The fixed frame 10 provides support for the overall structure, and the fixed installation mechanism 20 carries and limits the feeding structure 30, allowing it to move within a set range. The reciprocating striking mechanism 50 converts the rotational motion into linear reciprocating motion through the motor-driven linkage assembly, continuously striking the feeding structure 30. Under the action of the striking force and its own elastic components (such as compression spring 309), the feeding structure 30 generates high-frequency vibration, causing the material attached to the inner wall to detach due to vibration and fall into the feeder body 40, thereby avoiding blockage of the feeding channel.

[0022] The fixed installation mechanism 20 includes a mounting box 201, which is fixedly installed inside the fixed frame 10. Mounting seats 204 are fixedly connected to the front and back side walls of the mounting box 201. Sliding grooves 205 are provided on the top of each of the two mounting seats 204. A connecting groove 202 is also provided on the side wall of the mounting box 201. Positioning blocks 203 are fixed on the top and bottom of the connecting groove 202.

[0023] The mounting housing 201 serves as the mounting carrier for the feeding structure 30, providing an enclosed space. The sliding groove 205 of the mounting base 204 cooperates with the sliding block 308 of the feeding structure 30 to guide the vibration of the feeding structure 30 and limit its movement direction. The connecting groove 202 allows the striking component of the reciprocating striking mechanism 50 to pass through, so that the striking force can be applied to the feeding structure 30. The positioning block 203 limits the movement trajectory of the striking component, ensuring that the striking action is performed in a straight line and avoiding deviation that could lead to striking failure.

[0024] The feeding structure 30 includes a feeding box 301. A guide 302 is fixedly connected to the bottom of the feeding box 301. A discharge pipe 303 is provided at the bottom of the guide 302. A first flange 304 is provided on the outer wall of the discharge pipe 303. A second flange 306 is provided at the connection of the first flange 304. A feeder connecting hose 305 is connected inside the second flange 306. A fixing plate 307 is provided on the outer wall of the feeding box 301 near the top. Sliding blocks 308 are provided on both sides of the bottom of the fixing plate 307. Several compression springs 309 are also fixedly connected to the two side walls of the feeding box 301.

[0025] The feed box 301 is used for temporary storage and conveying of materials. The guide 302, through its inclined surface design, directs the materials towards the discharge pipe 303 to avoid accumulation. The flange and hose work together to achieve a flexible connection between the feed box 301 and the feeder, adapting to the vibration displacement of the feed box 301. The fixed plate 307 is embedded in the sliding groove 205 of the mounting base 204 through the sliding block 308, providing guidance for the vibration of the feed box 301 and ensuring its reciprocating motion in the set direction. The compression spring 309 connects the feed box 301 and the mounting box 201. Under the action of the impact force, it is compressed or stretched, giving the feed box 301 elastic potential energy for vibration. At the same time, it assists in its reset after the impact stops, continuously maintaining the vibration effect.

[0026] The reciprocating striking mechanism 50 includes a support base 501, a drive motor 502 on the top of the support base 501, an output shaft 503 on the front of the drive motor 502, a connecting rod 504 at the connection of the output shaft 503, a plug-in shaft 505 inside the connecting rod 504, a guide rod 506 at the connection of the plug-in shaft 505, a guide plug-in groove 507 inside the guide rod 506, a baffle 508 fixedly connected to the front end of the plug-in shaft 505, and a striking seat 509 on the right side of the guide rod 506, with guide grooves 510 at both the top and bottom of the striking seat 509.

[0027] The support seat 501 supports the drive motor 502. After the motor starts, the output shaft 503 rotates, driving the connecting rod 504 to make a circular motion. The connecting rod 504 is inserted into the guide insertion groove 507 of the guide rod 506 through the insertion shaft 505, converting the circular motion into the linear reciprocating motion of the guide rod 506 (the insertion shaft 505 slides in the groove, pushing the guide rod 506 to move axially). The baffle 508 prevents the insertion shaft 505 from falling out of the guide insertion groove 507, ensuring transmission stability. The striking seat 509 moves with the guide rod 506. Its top and bottom guide grooves 510 cooperate with the positioning block 203 of the fixed installation mechanism 20, further limiting the movement direction of the striking seat 509, so that it can only move in a straight line, thereby continuously applying a striking force to the feed box 301.

[0028] The feed box 301 is installed inside the mounting box 201, and the compression spring 309 is fixedly installed between the feed box 301 and the mounting box 201. The fixing plate 307 is slidably connected to the sliding groove 205 of the mounting base 204 through several sliding blocks 308.

[0029] The compression spring 309 connects both the feed box 301 and the mounting box 201. On the one hand, it provides elastic support for the feed box 301, and on the other hand, it deforms under the impact force, giving the feed box 301 the power to vibrate. The sliding block 308 of the fixing plate 307 is embedded in the sliding groove 205 of the mounting base 204 to form a sliding pair, which limits the vibration direction of the feed box 301 (which is consistent with the impact direction of the striking base 509), preventing it from shifting or shaking during vibration, ensuring that the vibration energy is concentrated on the dislodged material, and improving the anti-clogging effect.

[0030] The drive motor 502 drives the connecting rod 504 to rotate through the output shaft 503. The connecting rod 504 is inserted into the guide insertion groove 507 of the guide rod 506 through the insertion shaft 505, which in turn drives the guide groove 510 of the striking seat 509 to slide at the positioning block 203. The positioning block 203 is used to limit the movement direction of the striking seat 509, so that the striking seat 509 can reciprocate to strike the feed box 301.

[0031] The rotational motion of the drive motor 502 is transmitted to the connecting rod 504 via the output shaft 503. The circular motion of the connecting rod 504 is converted into the linear reciprocating motion of the guide rod 506 through the sliding of the plug shaft 505 in the guide plug groove 507. The striking seat 509 moves synchronously with the guide rod 506. Its guide groove 510 is sleeved on the positioning block 203. The positioning block 203 constrains the displacement of the guide groove 510, forcing the striking seat 509 to reciprocate in a straight line. When the striking seat 509 contacts the feeding box 301, it applies an impact force. The feeding box 301 vibrates in the opposite direction under the elastic action of the compression spring 309. The two work together to cause the material on the inner wall of the feeding box 301 to detach due to the dual action of "impact + vibration" and finally enter the feeder through the discharge pipe 303, thus achieving the anti-blocking function.

[0032] It should be noted that the electrical equipment and components mentioned above are all programmed and controlled using existing PLC controllers. Since these are mature technologies, they will not be described in detail here.

[0033] The overall working process of this anti-derailment support roller is as follows: Material entry and initial loading: The material first enters the feeding box 301 of the feeding structure 30. The feeding box 301 serves as a temporary storage and conveying carrier. The material is guided to the discharge pipe 303 by the bottom guide 302 to prepare for subsequent conveying.

[0034] Reciprocating striking mechanism 50 starts: The reciprocating striking mechanism 50 on the outside of the fixed installation mechanism 20 starts to work. The drive motor 502 drives the output shaft 503 to rotate, causing the connecting rod 504 to make circular motion. The connecting rod 504 cooperates with the guide insertion groove 507 of the guide rod 506 through the insertion shaft 505, converting the circular motion into the linear reciprocating motion of the guide rod 506. Under the limiting action of the positioning block 203 on the guide groove 510 of the striking seat 509, the striking seat 509 moves continuously along a straight line, continuously applying striking force to the feed box 301.

[0035] Vibration unloading of the feeding structure 30: After the feeding box 301 is subjected to an impact force, high-frequency vibration is generated due to the elastic action of the compression springs 309 on both sides (connecting the feeding box 301 and the mounting box 201); at the same time, the feeding box 301 slides in the sliding groove 205 of the mounting base 204 through the sliding block 308 at the bottom of the fixing plate 307, ensuring that the vibration direction is stable. The vibration causes the material attached to the inner wall of the feeding box 301 to detach, avoiding accumulation and blockage.

[0036] Material is conveyed to the feeder: The detached material is guided by the guide 302 and gathered into the discharge pipe 303. It is then connected to the feeder connecting hose 305 (flexible connection to adapt to vibration and displacement) through the first flange 304 and the second flange 306, and finally enters the feeder body 40, completing the smooth conveying of the material.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A single-shaft screw feeder with anti-clogging properties, characterized in that, Includes a fixed frame (10), the fixed frame (10) is provided with a fixed installation mechanism (20) inside, the fixed installation mechanism (20) is provided with a feeding structure (30) inside, the fixed installation mechanism (20) is also fixed with a reciprocating striking mechanism (50) on the outside, and the bottom of the feeding structure (30) is connected to the feeder body (40). The fixed installation mechanism (20) is used to install the feeding structure (30), and the reciprocating hammering mechanism (50) is used to reciprocate hammer the feeding structure (30), so that the feeding structure (30) generates strong vibration, thereby shaking off the material attached to the feeding structure (30) and avoiding blockage.

2. The anti-clogging single-shaft screw feeder according to claim 1, characterized in that, The fixed installation mechanism (20) includes an installation box (201), which is fixedly installed inside the fixed frame (10). The front and back side walls of the installation box (201) are fixedly connected to the mounting bases (204). The top of each of the two mounting bases (204) is provided with a sliding groove (205). The side wall of the installation box (201) is also provided with a connecting groove (202). The top and bottom of the connecting groove (202) are fixed with positioning blocks (203).

3. The anti-clogging single-shaft screw feeder according to claim 2, characterized in that, The feeding structure (30) includes a feeding box (301), a guide (302) is fixedly connected to the bottom of the feeding box (301), a discharge pipe (303) is provided at the bottom of the guide (302), a first flange (304) is provided on the outer side wall of the discharge pipe (303), a second flange (306) is provided at the connection of the first flange (304), a feeder connecting hose (305) is connected inside the second flange (306), a fixing plate (307) is provided on the outer side wall of the feeding box (301) near the top, sliding blocks (308) are provided on both sides of the bottom of the fixing plate (307), and several compression springs (309) are fixedly connected on both sides of the feeding box (301).

4. The anti-clogging single-shaft screw feeder according to claim 3, characterized in that, The reciprocating striking mechanism (50) includes a support seat (501), a drive motor (502) is provided on the top of the support seat (501), an output shaft (503) is provided on the front of the drive motor (502), a connecting rod (504) is provided at the connection of the output shaft (503), a plug-in shaft (505) is provided inside the connecting rod (504), a guide rod (506) is provided at the connection of the plug-in shaft (505), a guide plug-in groove (507) is provided inside the guide rod (506), a baffle (508) is fixedly connected to the front end of the plug-in shaft (505), a striking seat (509) is provided on the right side of the guide rod (506), and guide grooves (510) are provided at the top and bottom of the striking seat (509).

5. A single-shaft screw feeder for preventing blockage according to claim 4, characterized in that, The feed box (301) is installed inside the mounting box (201), and the compression spring (309) is fixedly installed between the feed box (301) and the mounting box (201). The fixing plate (307) is slidably connected to the sliding groove (205) of the mounting base (204) through several sliding blocks (308).

6. A single-shaft screw feeder for clogging prevention according to claim 5, characterized in that, The drive motor (502) drives the connecting rod (504) to rotate through the output shaft (503). The connecting rod (504) is inserted into the guide insertion groove (507) of the guide rod (506) through the insertion shaft (505), thereby driving the guide groove (510) of the striking seat (509) to slide at the positioning block (203). The positioning block (203) is used to limit the movement direction of the striking seat (509), so that the striking seat (509) can reciprocate to strike the feed box (301).

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