Discharging mechanism for stirrer

Abstract

The utility model provides a discharging mechanism for a stirring machine, which relates to the field of material conveying and is connected between a discharging part of the stirring machine and a feeding part of a screw conveyor, and the screw conveyor comprises an auger and a conveying pipe covering the auger; the device is characterized in that the device comprises a material box, the material box is arranged outside a material conveying pipe and at a material inlet in a covering mode, the material box and the material conveying pipe are fixed, the material conveying pipe and an auger part are embedded in the material box, the material inlet is formed in the end of the material box, the material inlet is close to the material inlet, and the material inlet and the material inlet are communicated with an inner cavity of the material box; the sliding body is embedded in the material box and slidably connected with the material box, the sliding body is located between the inner wall of the material box and the outer wall of the material conveying pipe, and a material pushing plate with the periphery attached to the inner wall of the material box is arranged at the end of the sliding body; the material pushing plate is provided with an arc-shaped notch matched with the rotation track of the auger in shape corresponding to the auger; the discharging blocking device not only can play a role in blocking discharging of the stirring machine, but also can play a role in scraping materials on the inner wall of the material box and preventing the materials from being solidified in the material box, and manual cleaning of the material box is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of material conveying, in particular to a discharging mechanism for a mixer. Background Art

[0002] In actual operation, for the preparation of the mixture, it is often necessary to first stir it evenly in a stirring kettle and then convey it through a conveying mechanism, that is, the stirring kettle and the material conveyor need to be shared. The commonly used material conveyor is a screw conveyor. For example, the feeding system disclosed in the patent application document with the publication number CN103625941A connects the feeding port of the screw feeder to the discharging port of the silo, and conveys the material to other working sections through the screw feeder, and a valve for controlling the discharging is arranged at the discharging port of the silo. However, in the process of transferring powdery materials from the silo to the screw feeder, problems such as material bridging and even blocking of the discharging port often occur. In view of this problem, corresponding mechanisms for preventing material bridging or anti-blocking need to be additionally provided in this type of equipment. Commonly used ones are the stirring rod type anti-blocking mechanism disclosed in the patent document with the publication number CN220222367U in the prior art, such as the one disclosed in the patent document with the publication number CN220008422U that crushes the agglomerated materials through a vibration assembly to prevent blockage, and such as the one disclosed in the patent document with the publication number CN220008422U that prevents the internal powder from accumulating and blocking by blowing external air into the material box, and this type of anti-blocking structure is generally independent of the valve for controlling the discharging.

[0003] However, in addition to the valve structure in the above feeding system, when conveying asphalt materials in industry, generally, the asphalt materials mixed and stirred in a heating and stirring tank are transferred to a screw conveyor for conveying, and the discharging of the stirring tank is controlled by the reciprocating movement of a flat valve plate.

[0004] However, the above structure still has the following problems in actual use: when conveying materials with a certain viscosity such as asphalt materials, as the valve plate reciprocates to open and close the valve and the service time prolongs, the materials are easily adhered to the casing at the feeding port, especially on the inner wall of the casing below the valve plate and outside the rotation track of the auger. For the open feeding port, it can be cleaned manually in time, but for the closed feeding port, such as when connecting the feeding port of the screw conveyor to the discharging port of the mixer, the cleaning of this feeding port is extremely inconvenient. If the asphalt materials are not cleaned in time, they will solidify on the inner wall of the casing, and in severe cases, it will affect the use of the equipment. And even if the above-mentioned conventional mechanisms for preventing material bridging or anti-blocking are applied here, the above problems cannot be solved. Summary of the Utility Model

[0005] The present utility model provides a discharging mechanism for a blender in view of the above problems existing in the prior art, which integrates functions such as controlling feeding and preventing material from being overhead or adhering to the wall, and effectively solves the problem of material adhesion at a specific position on the inner wall of the casing below the valve plate and outside the rotation track of the auger.

[0006] The technical solution of the present utility model for solving the above technical problems is as follows: A discharging mechanism for a blender is connected between the discharge of the blender and the feed of the screw conveyor. The screw conveyor includes an auger and a feed pipe covering the outside of the auger. The feed pipe is respectively provided with a discharge port and a feed port; it is characterized in that it includes

[0007] A feed box is arranged outside the feed pipe and at the feed port. The feed box is fixed to the feed pipe, and the feed pipe and the auger are partially embedded in the feed box. An inlet for connecting the discharge port of the blender is arranged at the end of the feed box. The inlet is close to the feed port and both are respectively communicated with the inner cavity of the feed box;

[0008] A sliding body is embedded in the feed box and is slidably connected to the feed box. The sliding body is located between the inner wall of the feed box and the outer wall of the feed pipe. A pushing plate is arranged at the end of the sliding body, and the outer circumference of the pushing plate fits the inner wall of the feed box; The pushing plate is provided with an arc-shaped notch corresponding to the auger and having a shape adapted to its rotation track, so that when the sliding body slides in the feed box, the pushing plate can scrape the material in the feed box outside the rotation track of the auger and push the material to the inlet; A baffle adapted to the notch is arranged in the feed box near the inlet, so that when the sliding body slides to the position where the pushing plate and the baffle overlap, the pushing plate can jointly block the inlet with the baffle.

[0009] Further, the baffle is an end plate of the feed pipe.

[0010] Further, a scraping plate connected to the sliding body is arranged at the rear of the pushing plate, and the scraping plate is close to the outer wall of the feed pipe and has a shape adapted to the outer wall of the feed pipe.

[0011] Further, the sliding direction of the pushing plate in the feed box is the same as the axial direction of the auger.

[0012] Further, the sliding body is connected with a door closing drive for driving it to slide in the feed box.

[0013] Furthermore, the door closing drive adopts a telescopic cylinder structure.

[0014] Furthermore, the fixed end of the door closing drive is connected to the feed pipe, and the telescopic end of the door closing drive is connected to the sliding body.

[0015] Further, the cross-section of the inner cavity of the feed box is rectangular, a slideway is arranged on the inner wall of the feed box, and a slider adapted to the slideway is arranged on the outer circumference of the sliding body.

[0016] Further, the feeding port is located at the connection between the feeding pipe and the inner wall of the material box and is not lower than the axis of the feeding pipe.

[0017] Further, the feeding pipe is provided with a heating belt.

[0018] The beneficial effects of the present utility model are as follows: By setting a material box with a sliding body inside, a pushing plate with a notch of a specific shape at the front end of the sliding body, and the relative positional relationship that a part of the screw conveyor is embedded in the material box, the shape of the pushing plate is adapted to the rotation trajectory of the auger. During use, the feeding port of the material box is connected to the discharging port of the mixer. During the process of using the pushing plate to seal the door, the materials outside the rotation trajectory of the auger in the material box can be effectively scraped and pushed to the feeding port; the provided baffle is adapted to the notch and is used together with the pushing plate to block the feeding port, that is, the pushing plate can not only play the role of blocking the discharging of the mixer, but also play the role of scraping the inner wall of the material box and preventing the materials from solidifying in the material box, eliminating the need for manual cleaning of the material box. The equipment has a simple structure and is easy to process. It solves the problem that when the prior art adopts a valve plate with a common structure, the inner wall of the casing in a specific triangular area below the valve plate and outside the rotation trajectory of the auger is prone to adhering materials and is inconvenient to clean. Description of the Drawings

[0019] Figure 1 is the cross-sectional structural schematic diagram of the present utility model;

[0020] Figure 2 is the structural schematic diagram of the material box of the present utility model;

[0021] Figure 3 is the structural schematic diagram of the sliding body of the present utility model;

[0022] Figure 4 is the structural schematic diagram of the sliding body of the present utility model;

[0023] In the figure: 1. Material box, 11. Feeding port, 2. Sliding body, 21. Pushing plate, 210. Notch, 22. Scraper, 23. Slide block, 3. Screw conveyor, 31. Auger, 32. Feeding pipe, 320. Heating belt, 321. Baffle, 322. Discharging port, 323. Feeding port, 4. Door closing drive. Detailed Embodiments

[0024] The principles and features of the present utility model will be described below. The examples given are only used to explain the present utility model and are not intended to limit the scope of the present utility model.

[0025] As shown in the attached drawings, this embodiment provides a discharging mechanism for a blender, which is connected between the discharge port of the blender and the feed port of the screw conveyor 3. The screw conveyor 3 is specifically a tubular screw conveyor, which includes a screw 31 and a feed pipe 32 covering the outside of the screw 31. The feed pipe 32 is respectively provided with a discharge port 322 and a feed port 323; the discharging mechanism includes:

[0026] A feed box 1, covering the outside of the feed pipe 32 at the feed port 323. The feed box 1 is fixed to the feed pipe 32, and the feed pipe 32 and the screw 31 are partially embedded in the feed box 1. The end of the feed box 1 is provided with a feed port 11 for connecting to the discharge port of the blender. The feed port 11 is close to the feed port 323 and both are respectively communicated with the inner cavity of the feed box 1;

[0027] A sliding body 2, embedded in the feed box 1 and slidably connected to the feed box 1, and the sliding direction is the same as the axial direction of the screw 31. The sliding body 2 is located between the inner wall of the feed box 1 and the outer wall of the feed pipe 32; specifically, the cross-section of the inner cavity of the feed box 1 in this embodiment is rectangular, and the inner wall of the feed box 1 is provided with a slideway. The outer periphery of the sliding body 2 is provided with a slider 23 adapted to the slideway; the end of the sliding body 2 is provided with a pushing plate 21 whose outer periphery fits the inner wall of the feed box 1; the pushing plate 21 is provided with an arc-shaped notch 210 corresponding to the screw 31 and having a shape adapted to its rotation trajectory, so that when the sliding body 2 slides in the feed box 1, the pushing plate 21 can scrape the materials outside the rotation trajectory of the screw 31 in the feed box 1 and push the materials to the feed port 11; a baffle 321 adapted to the notch 210 is provided near the feed port 11 in the feed box 1, so that when the sliding body 2 slides to the position where the pushing plate 21 and the baffle 321 overlap, the pushing plate 21 can jointly block the feed port 11 with the baffle 321.

[0028] When this embodiment is in use, the feed box 1 is connected to the discharge port of the blender through the feed port 11, and the sliding body 2 is connected to a door closing drive 4 for driving it to slide in the feed box 1. The door closing drive 4 in this embodiment adopts a hydraulic cylinder structure. The fixed end of the door closing drive 4 is connected to the feed pipe 32, and the telescopic end of the door closing drive 4 is connected to the sliding body 2. The sliding body 2 is controlled by the door closing drive 4 to slide in the feed box 1 with the pushing plate 21, and the moving range of the pushing plate 21 is limited at the feed port 323.

[0029] During the forward movement of the pusher plate 21 with the above structure, it can effectively scrape all the materials in the material box 1 outside the rotation track of the auger 3, eliminating dead corners. When the pusher plate 21 moves forward to overlap with the baffle 321, it can push the excess materials in the material box 1 back into the mixer. At this time, the two form a planar structure to block the feeding port 11. This process also adjusts the size of the feeding port 323 through the pusher plate 21. When discharging is required, the pusher plate 21 moves backward, and the materials in the mixer can sequentially enter the conveying pipe 32 through the feeding port 11, the inner cavity of the material box 1, and the feeding port 323, and then be conveyed to the discharge port 322 for discharge under the action of the auger 31. By using the pusher plate with the notch 210 structure and the cooperation of the shape of the notch 210 with the auger and the baffle 321, the excess materials in the material box 1 can be effectively pushed back into the mixer during the process of the pusher plate 21 closing the door, preventing the materials from adhering to the inner wall of the casing outside the rotation track of the auger. That is, the pusher plate 21 can not only block the discharge of the mixer, but also scrape the inner wall of the material box, prevent bridging, and prevent the materials from solidifying in the material box, eliminating the need for manual cleaning of the material box.

[0030] When this device is applied to the conventional material conveying, it can effectively prevent the bridging phenomenon of materials in the conveying channel; when applied to the conveying of easily solidifying materials such as asphalt mixture, it can effectively avoid the adhesion and even solidification of materials on the inner wall of the material box. Especially for the problem of material adhesion in the specific triangular area of the inner wall of the casing below the valve plate and outside the rotation track of the auger in the non-embedded connection structure between the conventional screw conveyor and the material box in the prior art and the use of a conventional valve plate with the same cross-sectional shape as the material box, it greatly reduces the work of manual cleaning of the material box.

[0031] In a preferred embodiment of the present invention, the baffle 321 is the end plate of the conveying pipe 32, specifically formed by partially embedding the end plate of the conveying pipe 32 into the material box 1, and the driving mechanism of the screw conveyor is installed at one end of the conveying pipe away from the baffle 321. That is, by using a part of the end plate of the conveying pipe 32 itself as the baffle 321, there is no need to make complex modifications to the screw conveyor 3. Instead, a material box structure with a sliding body 2 is added, and the shape of the notch of the pusher plate is adapted to the baffle 321, and the material box is assembled to the feeding port of the conveying pipe 32 for use, which can solve the above problems, and the equipment structure is simple and easy to process.

[0032] In a preferred embodiment of the present invention, a scraper 22 connected to the sliding body 2 is provided at the rear of the pusher plate 21, and the scraper 22 is close to the outer wall of the conveying pipe 32 and is adapted to the shape of the outer wall of the conveying pipe 32. When the pusher plate 21 moves forward to the baffle 321, the scraper 22 also moves to the feeding port 323 accordingly. There is a small gap between the scraper and the outer wall of the conveying pipe, which can ensure that the excess materials on the outer wall of the conveying pipe 32 are scraped off.

[0033] In a preferred embodiment of the present utility model, the feeding port 323 is located at the connection between the feeding pipe 32 and the inner wall of the material box 1, and is not lower than the axis of the feeding pipe 32. Its function is to obtain a larger-sized feeding port 323 to ensure the smooth feeding of the spiral conveyor and to effectively clean the adhesion dead angle of the material.

[0034] In a preferred embodiment of the present utility model, the feeding pipe 32 is provided with a heating belt 320 for ensuring the material temperature during the feeding process, ensuring the fluidity of the material, and preventing the solidification of materials such as asphalt materials. The heating belt can be wound around the outer wall of the outer section of the feeding pipe.

Claims

1. A discharge mechanism for a mixer, which is connected between the discharge of the mixer and the feed of a screw conveyor (3). The screw conveyor (3) includes a screw (31) and a feed pipe (32) covering the outside of the screw (31). The feed pipe (32) is respectively provided with a discharge port (322) and a feed port (323); characterized in that, including a bin (1) covering the outside of a feeding pipe (32) at the feeding inlet (323), the bin (1) being fixed to the feeding pipe (32), and the feeding pipe (32) and the auger (31) being partially embedded in the bin (1). An inlet (11) for connecting to the discharge port of a mixer is provided at the end of the bin (1). The inlet (11) is close to the feeding inlet (323) and both are respectively communicated with the inner cavity of the bin (1); a sliding body (2) embedded in the bin (1) and slidably connected to the bin (1). The sliding body (2) is located between the inner wall of the bin (1) and the outer wall of the feeding pipe (32). A pushing plate (21) with an outer circumference fitting the inner wall of the bin (1) is provided at the end of the sliding body (2). An arc-shaped notch (210) whose shape is adapted to the rotation trajectory of the auger (31) is provided on the pushing plate (21) corresponding to the auger (31). When the sliding body (2) slides in the bin (1), the pushing plate (21) can scrape the materials outside the rotation trajectory of the auger (31) in the bin (1) and push the materials to the inlet (11). A baffle (321) adapted to the notch (210) is provided in the bin (1) near the inlet (11). When the sliding body (2) slides to the position where the pushing plate (21) and the baffle (321) overlap, the pushing plate (21) can jointly block the inlet (11) with the baffle (321).

2. The discharging mechanism for a blender according to claim 1, wherein, The baffle (321) is an end plate of the feeding pipe (32).

3. The discharging mechanism for a blender according to claim 1, characterized in that, A scraping plate (22) connected to the sliding body (2) is provided at the rear of the pushing plate (21), and the scraping plate (22) is close to the outer wall of the feeding pipe (32) and has a shape adapted to the outer wall of the feeding pipe (32).

4. The discharging mechanism for a blender according to claim 1, wherein, The sliding direction of the pushing plate (21) in the bin (1) is the same as the axial direction of the auger (31).

5. The discharging mechanism for a blender according to claim 1, characterized in that, The sliding body (2) is connected with a door closing drive (4) for driving it to slide in the bin (1).

6. The discharging mechanism for a blender according to claim 5, characterized in that, The door closing drive (4) adopts a telescopic cylinder structure.

7. The discharging mechanism for a blender according to claim 6, wherein, The fixed end of the door closing drive (4) is connected to the feeding pipe (32), and the telescopic end of the door closing drive (4) is connected to the sliding body (2).

8. The discharging mechanism for a blender according to claim 1, characterized in that, The cross-section of the inner cavity of the bin (1) is rectangular. A slideway is provided on the inner wall of the bin (1), and a slider (23) adapted to the slideway is provided on the outer circumference of the sliding body (2).

9. The discharging mechanism for a blender according to claim 1, characterized in that, The feeding inlet (323) is located at the connection between the feeding pipe (32) and the inner wall of the bin (1) and is not lower than the axis of the feeding pipe (32).

10. The discharging mechanism for a blender according to claim 1, characterized in that, The feeding pipe (32) is provided with a heating tape (320).

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