Multifunctional discharging device for grinding machine

Abstract

The utility model relates to the technical field of blanking equipment, in particular to a multifunctional blanking device for a grinding machine, which comprises a storage bin used for accommodating, storing and conveying materials produced in the previous process, a blanking nozzle is mounted at an outlet of the storage bin and communicated with a water pipe, and the water pipe is communicated with the storage bin. The water pipe is tangent to the inner pipe wall of the discharging nozzle, and the included angle between the axis of the joint of the water pipe and the discharging nozzle and the axis of the discharging nozzle is alpha. The blanking bin is provided with at least two feed inlets and is mounted right above the grinding machine, and the feed inlets of the blanking bin are communicated with the blanking nozzle of the storage bin; and the connecting pipe is used for communicating the discharging nozzle of the storage bin with the feeding port of the discharging bin so that materials can enter the grinding machine from the storage bin through the discharging bin, and the discharging device is used for solving the technical problems that in the prior art, a discharging device is inconvenient to maintain, the equipment cost input is high, and the bridging and blocking phenomena are prone to occurring.

Description

Technical Field

[0001] The utility model relates to the technical field of blanking equipment, in particular to a multifunctional blanking device for a grinding machine. Background Art

[0002] The descriptions in this section only provide background information related to the present disclosure and do not constitute prior art.

[0003] Para-aramid is a typical representative of aramid fibers, which is spun from terephthaloyl chloride and p-phenylenediamine. The main products include Kevlar of DuPont and Twaron of Teijin. It was first successfully researched and developed by DuPont in 1972, and its trade name is Kevlar. Relevant domestic scientific research institutions and units started researching para-aramid fibers in the 1960s. At present, the key technical equipment and processes for para-aramid production have been mastered, and relevant enterprises have realized the industrialization of para-aramid fibers by using this technology.

[0004] At present, the production reactors for para-aramid fiber raw materials mainly have two forms: batch reactors and continuous reactors. The para-aramid produced by the reactor will undergo a series of post-treatments, and a part of it is ground by a grinding machine. At present, the layout of the grinding machine and the reactor in terms of spatial position is generally a vertical relationship, or there is a small deviation, and the deviation distance is not too large. Limited by this, one grinding machine can only serve one reactor. To prevent equipment failures, a one-use-one-backup method is used for continuous production. For multiple production lines, the investment in post-treatment equipment is large. When using a continuous reactor, when the post-treatment equipment has problems and needs to be repaired for a short time, the continuous reactor stops production, resulting in a large loss of materials. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a multifunctional blanking device for a grinding machine, which is used to solve the technical problems of inconvenient maintenance, high equipment cost investment and easy bridging and blocking phenomena in the existing blanking devices.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A multifunctional blanking device for a grinding machine, comprising:

[0008] A storage bin, which is used to accommodate the materials produced in the previous process and store and convey them. A blanking nozzle is installed at the outlet of the storage bin. The blanking nozzle is connected to a water pipe, and the water pipe is tangent to the inner wall of the blanking nozzle, and the included angle between the axis of the connection between the water pipe and the blanking nozzle and the axis of the blanking nozzle is α, where 0° < α < 90°;

[0009] A blanking bin, which is provided with at least two feed inlets and is installed directly above the grinding machine, and its feed inlets are connected to the blanking nozzle of the storage bin;

[0010] A connecting pipe is used to connect the discharging nozzle of the storage bin and the feeding port of the feeding bin to allow materials to enter the grinding machine from the storage bin via the feeding bin.

[0011] Furthermore, an anti-bridging mechanism is installed in the storage bin. The anti-bridging mechanism includes:

[0012] An anti-bridging shaft is installed along the length direction of the storage bin, and both ends are rotatably installed on the inner wall of the bin body of the storage bin.

[0013] Anti-bridging columns are vertically installed on the anti-bridging shaft, and the adjacent anti-bridging columns are perpendicular in the projection along the axis direction of the anti-bridging shaft.

[0014] An anti-bridging power unit is fixedly installed relative to the storage bin, and its power end is connected to the anti-bridging shaft and drives it to rotate.

[0015] Furthermore, a screw conveyor is installed between the outlet of the storage bin and the discharging nozzle. One end of the screw conveyor communicates with the bottom of the discharging nozzle, and the other end is fixedly installed with a conveying power unit. The power end of the conveying power unit is connected and drives the internal spiral blade to rotate to convey the materials.

[0016] Furthermore, a flow meter and a regulating valve are installed in series on the water pipe.

[0017] Furthermore, the storage bin is set as an inverted conical structure. The connecting pipe is made of a transparent hose. An inlet pipe is provided at the connection between the feeding bin and the hose. A blocking part is provided on the inlet pipe, and the blocking part is installed by plugging with the inlet pipe.

[0018] Furthermore, several support ribs are provided on the hose, and the support ribs are integrally formed or bonded with the hose body.

[0019] Furthermore, the inlet of the hose is higher than the outlet of the hose, and the inclination angle β of the hose is: 0° < β < 90°.

[0020] Furthermore, the shape of the discharging nozzle is set such that the upper part is a cube, the lower part is a cylinder, and the middle part is a conical body. The relationship between the diameter D of the lower cylinder, the diameter d of the water pipe, and the side length L of the upper cube is: 3d < D < L < 5d.

[0021] Furthermore, the feeding bin is set as an inverted conical structure. The included angle between the axis of the inlet pipe and the axis of the feeding bin is γ, 0° < γ < 90°.

[0022] Compared with the prior art, the technical solution of the present utility model has the following beneficial effects:

[0023] (1). By providing a storage bin, the utility model can not only continuously post-process the materials produced by the batch reactor, but also temporarily store the materials processed by the continuous reactor. Through the combination of the storage bin and the auger, continuous production of post-processing is achieved, and it is also applicable to the selection scheme during the short-term maintenance of the post-processing of the continuous polymerization reactor, realizing the continuous production of the continuous polymerization reactor, reducing the start-up cost, and reducing the labor intensity of workers.

[0024] (2). The utility model connects the storage bin and the feeding bin through a hose, and the feeding bin is connected to the grinder, enabling the grinder and the reactor not to be perpendicular. Thus, in multiple production lines, multiple grinders can be placed together. Since the screen of the grinder is a vulnerable part that needs to be replaced regularly during actual production, and the production of the grinder is likely to be discontinuous during maintenance and replacement, the utility model facilitates the centralized placement of multiple grinders by changing the perpendicular relationship between the grinder and the reactor. During maintenance, a spare grinder can be selected to achieve continuous production, reducing the amount of equipment put into use and saving production costs.

[0025] (3). Through the design of the combination of the storage bin, auger, feeding nozzle, and hose, the utility model can increase the distance in the vertical direction of the spatial layout between the reactor and the grinder under the impact of water flow, making the spatial design more flexible. The feeding amount is adjusted by the cooperation of the water pipe flow rate and the rotation speed of the auger to match the processing capacity of the grinder, and it can combine the intermittent storage of the batch reactor with continuous post-processing, improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a three-dimensional structure schematic diagram of the utility model;

[0027] Figure 2 is a three-dimensional structure schematic diagram of the storage bin;

[0028] Figure 3 is a three-dimensional structure schematic diagram of the feeding nozzle;

[0029] Figure 4 is a bottom view structure schematic diagram of the feeding nozzle;

[0030] Figure 5 is a front view of the feeding nozzle;

[0031] Figure 6 is a three-dimensional structure schematic diagram of the feeding bin;

[0032] Figure 7 is a front view of the feeding bin.

[0033] In the figure: 1. storage bin; 2. auger; 3. blanking nozzle; 4. flowmeter; 5. water pipe; 6. regulating valve; 7. clamp; 8. hose; 9. baffle; 10. blanking bin; 11. anti-bridging motor; 12. reducer; 13. anti-bridging column; 14. anti-bridging shaft; 15. bearing. Detailed implementation

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0035] The accompanying drawings are only for illustrative purposes and cannot be construed as a limitation of this patent;

[0036] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the embodiments of the present application. The singular forms "a", "the" and "said" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0037] When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0038] In the description of the present application, it should be understood that the terms "first", "second", "third", etc. are only used to distinguish similar objects, and do not have to be used to describe a specific order or sequence, nor can they be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0039] In addition, in the description of the present application, unless otherwise specified, "a plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the front and rear associated objects. The following further elaborates on the present utility model with reference to the accompanying drawings and embodiments.

[0040] In order to solve the limitations of the prior art, this embodiment provides a technical solution, and the technical solution of the utility model is further described below in conjunction with the drawings and embodiments.

[0041] The utility model is mainly aimed at the existing technology for processing para-aramid fiber raw material production lines. The conventional settings are that the reactor and the grinder are in a vertical upper and lower position relationship, which requires the reactor to be shut down when the grinder is replaced and repaired. There is also a problem of poor production continuity of the intermittent reactor. In addition, since the material has a certain viscosity, bridging and blockage are likely to occur during the transportation process. The utility model is a technical improvement for the above problems. The specific structure is shown in the next paragraph.

[0042] See attached Figure 1 and 2 , a multifunctional feeding device for a grinding machine, comprising:

[0043] The storage bin 1 is set to an inverted cone structure, which is wide at the top and narrow at the bottom, and the internal corners are all set to rounded corners. The storage bin 1 is mainly used to accommodate the materials produced in the previous process and store and transport them. The previous process here can be understood as a reactor, and the reactor can be an intermittent reactor or a continuous reactor. A discharge nozzle 3 is installed at the outlet of the storage bin 1, see the attached Figures 3 - 5, the shape of the blanking nozzle 3 is set such that the upper part is a cube, the lower part is a cylinder, and the middle part is a cone. The cone is used to connect the cube in the upper part and the cylinder in the lower part. The relationship between the diameter D of the lower cylinder, the diameter d of the water pipe 5, and the side length L of the upper cube is: 3d < D < L < 5d. The side length of the cube being greater than the diameter of the cylinder is beneficial for the transition during the output of the material in the storage bin 1. By limiting the relationship between the diameter of the water pipe 5 and the diameter of the cylinder, it is beneficial to ensure that the material and water reach an appropriate ratio, and thus can flow better in the hose 8, avoiding blockage. The blanking nozzle 3 is installed and connected to the water pipe 5 through a flange. A flow meter 4 and a regulating valve 6 are installed in series on the water pipe 5 through flanges, which is beneficial for measuring and adjusting the water inflow in the hose 8 and facilitating the adjustment of the ratio of the material and water in the hose 8. The water pipe 5 is tangent to the inner wall of the blanking nozzle 3, and the included angle between the axis of the connection between the water pipe 5 and the blanking nozzle 3 and the axis of the blanking nozzle 3 is α, where 0° < α < 90°, preferably 45°. This design is beneficial for the water flow to move downward in a rotational direction around the pipe wall in the blanking nozzle 3, reducing the material bridging phenomenon, thereby preventing the material from blocking the feeding nozzle. The installation method of the water pipe 5 and the blanking nozzle 3 can be welding or other fixed connection methods; an anti-bridging mechanism is installed in the storage bin 1. The anti-bridging mechanism includes: an anti-bridging shaft 14, which is installed along the length direction of the storage bin 1 and is rotatably installed at both ends on the inner wall of the bin body of the storage bin 1 through bearings 15; a plurality of anti-bridging columns 13, which are vertically installed on the anti-bridging shaft 14, and the adjacent anti-bridging columns 13 are perpendicular in the projection along the axis direction of the anti-bridging shaft 14. Here, it can be understood that the adjacent anti-bridging columns 13 are vertically arranged in the three-dimensional space; an anti-bridging power part, which is fixedly installed relative to the storage bin 1 and its power end is connected to the anti-bridging shaft 14 and drives it to rotate. Here, the anti-bridging power part is an anti-bridging motor 11, which is a rotary motor and is synchronously rotatably installed with the anti-bridging shaft 14 through a speed reducer 12. A screw conveyor 2 is also installed between the outlet of the storage bin 1 and the blanking nozzle 3. Here, the storage bin 1 and the screw conveyor 2 are installed through bolts, and the screw conveyor 2 and the blanking nozzle 3 are installed through bolts. One end of the screw conveyor 2, that is, the outlet, is connected to the blanking nozzle 3, and the other end, that is, the inlet, is fixedly installed with a conveying power part relative to it. The power end of the conveying power part is connected and drives the internal spiral blade to rotate to convey the material. Here, the conveying power part uses a variable-frequency motor, and the rotation speed can be adjusted to control the output volume. During the rotation of the spiral blade, the material will be pushed forward. A connecting pipe is used to connect the blanking nozzle 3 of the storage bin 1 and the inlet of the blanking bin 10 to allow the material to enter the grinding machine from the storage bin 1 via the blanking bin 10.Here, the connecting pipe uses a transparent flexible hose 8. The transparent material facilitates observing the material flow inside the hose 8 at any time. An inlet pipe is provided at the connection between the blanking bin 10 and the hose 8. Here, the hose 8 and the inlet pipe of the blanking bin 10 are connected by a clamp 7. A blocking part is provided on the inlet pipe, and the blocking part is installed by insertion with the inlet pipe. It can be understood that a slot is provided on the inlet pipe of the blanking bin 10, and the blocking part uses a blocking valve or a baffle 9. The baffle 9 is inserted and installed in the slot on the inlet pipe, and the baffle 9 and the slot are installed with sliding seals. A number of support ribs are provided outside the hose 8. The support ribs can be arranged axially or circumferentially radially to prevent the hose 8 from deforming due to material accumulation and blockage. The support ribs are integrally formed or bonded with the hose 8 body. The inlet of the hose 8 is higher than the outlet of the hose 8, and the inclination angle β of the hose 8 is: 0° < β < 90°, preferably 45°. Here, the setting of the angle β is different from the technology where the traditional reactor is directly above the grinder, but it can realize the working conditions where one grinder corresponds to multiple reactors or one reactor corresponds to multiple grinders.

[0044] See the appendix Figure 6 and 7 , the blanking bin 10 is provided with at least two inlet ports. The purpose of at least two inlet ports is to enable one grinder to be connected to multiple reactors simultaneously. It is installed directly above the grinder and its inlet port is connected to the blanking nozzle 3 of the storage bin 1; the blanking bin 10 is set as an inverted conical structure, and the included angle between the axis of the inlet pipe and the axis of the blanking bin 10 is γ, 0° < γ < 90°, preferably 30°. Here, the setting of the angle γ is beneficial to ensuring that the mixture of material and water can quickly pass through the blanking bin 10 and enter the grinder, and it is not easy to occur blockage.

[0045] When using the blanking device of the present utility model for production, the material enters the storage bin 1 after being processed by the reactor. At this time, the anti-bridging column 13 rotates with the anti-bridging shaft 14 to stir the material and prevent the occurrence of bridging and blockage. The material passes through the outlet of the storage bin 1 and enters the auger 2, and then flows into the blanking bin 10 through the hose 8 from the outlet of the auger 2. The material is mixed with the water introduced by the water pipe 5 at the blanking nozzle 3. The outlet of the blanking bin 10 is connected to the grinder. At the same time, the blanking bin 10 can also be connected to other grinders as a backup. When one of the grinders needs to be repaired and replaced with parts, the backup grinder can be used for production to ensure the continuity of production. Or the blanking bin 10 can be connected to multiple reactors and the storage bin 1 simultaneously to prevent production discontinuity caused by untimely material production.

[0046] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but rather should be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0047] The foregoing is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A multifunctional feeding device for a grinding machine, characterized in that: include: The storage bin (1) is used to store and transport materials produced in the previous process. A discharge nozzle (3) is installed at the outlet of the storage bin (1). The discharge nozzle (3) is connected to a water pipe (5). The water pipe (5) is tangent to the inner wall of the discharge nozzle (3). The axis of the connection between the water pipe (5) and the discharge nozzle (3) is at an angle α to the axis of the discharge nozzle (3), and 0°<α<90°. A material discharge bin (10) is provided with at least two feed ports, installed directly above the grinding machine and the feed ports thereof are connected to the material discharge nozzle (3) of the material storage bin (1); The connecting pipe is used to connect the discharge nozzle (3) of the storage bin (1) and the feed port of the discharge bin (10) so that the material can enter the grinding machine from the storage bin (1) through the discharge bin (10).

2. A multifunctional feeding device for a grinding machine according to claim 1, characterized in that: An anti-bridging mechanism is installed in the storage bin (1), and the anti-bridging mechanism comprises: An anti-bridging shaft (14) is installed along the length direction of the storage bin (1) and its two ends are rotatably installed on the inner wall of the storage bin (1); The anti-bridge columns (13) are vertically mounted on the anti-bridge shaft (14) and the projections of adjacent anti-bridge columns (13) along the axis direction of the anti-bridge shaft (14) are in a vertical relationship; The anti-bridge power unit is fixedly installed relative to the storage bin (1) and its power end is connected to the anti-bridge shaft (14) and drives the anti-bridge shaft (14) to rotate.

3. A multifunctional feeding device for a grinding machine according to claim 2, characterized in that: An auger (2) is also installed between the outlet of the storage bin (1) and the discharge nozzle (3). The bottom of one end of the auger (2) is connected to the discharge nozzle (3), and the other end is relatively fixedly installed with a conveying power unit. The power end of the conveying power unit is connected to and drives the internal spiral blade to rotate to convey the material.

4. A multifunctional feeding device for a grinding machine according to claim 3, characterized in that: A flow meter (4) and a regulating valve (6) are installed in series on the water pipe (5).

5. A multifunctional feeding device for a grinding machine according to claim 4, characterized in that: The storage bin (1) is configured as an inverted cone structure, the connecting pipe is a transparent hose (8), a feed pipe is provided at the connection between the lower bin (10) and the hose (8), a blocking portion is provided on the feed pipe, and the blocking portion and the feed pipe are plug-connected.

6. A multifunctional feeding device for a grinding machine according to claim 5, characterized in that: The hose (8) is provided with a plurality of supporting ribs, and the supporting ribs are integrally formed with or bonded to the hose (8) body.

7. A multifunctional feeding device for a grinding machine according to claim 6, characterized in that: The inlet of the hose (8) is higher than the outlet of the hose (8), and the inclination angle β of the hose (8) is set to: 0°<β<90°.

8. A multifunctional feeding device for a grinding machine according to any one of claims 1 to 7, characterized in that: The shape of the feed nozzle (3) is set to be a cube at the top, a cylinder at the bottom, and a cone in the middle. The relationship between the diameter of the lower cylinder is D, the diameter d of the water pipe (5), and the side length L of the upper cube is: 3d<D<L<5d.

9. A multifunctional feeding device for a grinding machine according to claim 8, characterized in that: The lower material bin (10) is configured as an inverted cone structure, and the angle between the axis of the feed pipe and the axis of the lower material bin (10) is γ, 0°<γ<90°.

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