A raw material screening device for dye preparation

Abstract

The present invention belongs to the technical field of screening equipment, and specifically relates to a raw material screening device for dye preparation. Through the setting of the screening mechanism, the dye raw material can be effectively screened, which can effectively improve the screening effect on the one hand, and avoid the screening plate from being quickly blocked and affecting the screening effect on the other hand; the jet assembly can cooperate with the screening action to achieve a more effective cleaning effect on the screening plate, and maintain synchronous screening action for jet treatment.

Description

Technical Field

[0001] The invention belongs to the technical field of screening equipment, and in particular relates to a raw material screening device for dye preparation. Background Art

[0002] Dyes refer to a class of organic compounds that can give other substances bright and firm colors. With the in-depth development of industrialization and chemistry, artificial synthetic dyes have gradually become the mainstream of current dyeing and are widely used in textile, chemical and other fields.

[0003] Before using the dye raw materials, in order to ensure that the dye meets the dyeing requirements, most of the raw material particles and powders of the dye are screened to remove particles or impurities that do not meet the requirements in the raw materials. However, most of the general screening devices currently used are simple plane shaking screening. This method not only makes it easy for the pigment raw materials to accumulate in one place when pouring, resulting in low screening efficiency, but also easily leads to rapid blockage of the local screen, thereby affecting the screening efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a raw material screening device for dye preparation, so as to solve the problems mentioned in the background technology.

[0005] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows:

[0006] A raw material screening device for dye preparation, comprising a top cover, a receiving bucket, a motor and a control panel, wherein the motor is arranged at the upper end of the top cover, a main shaft which is rotatably arranged inside the top cover and is transmission-connected to the output shaft of the motor, a feed port is provided at the upper end of the top cover, a plurality of screening mechanisms are arranged between the top cover and the receiving bucket, and the main shaft is transmission-connected to the plurality of screening mechanisms;

[0007] The screening mechanism comprises an outer cylinder, a driven shaft, a screening plate, a guide bucket and a vibrator. The adjacent outer cylinders are connected by flanges, and the outer cylinder is connected to the top cover and the receiving bucket by flanges. The driven shaft is rotatably arranged at the axis of the outer cylinder through a bracket. The driven shaft and the main shaft and the adjacent driven shafts are splined. The screening plate is elastically slidably sleeved on the driven shaft from top to bottom. The guide bucket is fixed in the outer cylinder and located at the lower side of the screening plate. The guide bucket is an eccentric frustum structure with a diameter gradually decreasing from top to bottom. The driven shaft rotates and seals through the guide bucket. The vibrator is arranged between the screening plate and the guide bucket.

[0008] A slag discharge window is provided on the side of the outer cylinder at the rear side relative to the rotation direction of the motor, and a paddle matching the slag discharge window and the screening plate is provided on the inner side wall of the outer cylinder.

[0009] The vibrator includes a fixed ring, a springboard and a push rod. The fixed ring is fixedly connected to the inner wall of the outer cylinder. There are several springboards evenly arranged at the upper end of the fixed ring. Compared with the rotation direction of the motor, the springboard is gradually raised from bottom to top in a spiral structure. There are several push rods evenly arranged at the lower end of the screening plate and corresponding to the position of the fixed ring. The screening plate remains downward in a stationary state.

[0010] A ball is arranged at the end of the push rod.

[0011] An injection assembly is also provided in the outer cylinder, and the injection assembly includes a sealing cylinder, an exhaust device, an air inlet pipe, an exhaust pipe and a nozzle. The sealing cylinder is fixed in the outer cylinder by a bracket and is located at the lower side of the guide bucket. The exhaust device is provided between the sealing cylinder and the corresponding driven shaft. The exhaust pipe is connected to the air path of the sealing cylinder and is provided at the lower side of the corresponding screen plate. The nozzle is connected to the air outlet end of the exhaust pipe and is located at the lower side of the screen plate.

[0012] The pumping device includes a rotary plate, a float, a spring and a telescopic rod. The float sliding seal is arranged in a sealing tube. The telescopic rod is fixedly connected to the upper end of the float and slides out of the sealing tube. The telescopic rod sliding seal passes through the guide bucket. The rotary plate is arranged on the driven shaft and is located between the screening plate and the guide bucket. The rotary plate is abutted and matched with the telescopic rod.

[0013] The number of the rotating plates is at least two and they are arranged on the driven shaft in a circular array. The rotating plates are in a spiral structure as a whole and the spiral rotation direction matches the rotation direction of the driven shaft.

[0014] The air inlet pipe and the exhaust pipe are both three-way pipes, one of the air inlet ports of the air inlet pipe extends out of the outer tube and is connected to the external environment, the other two air inlet ports of the air inlet pipe are respectively connected to the one-way air inlet at the upper and lower ends of the sealing tube, two of the exhaust ports of the exhaust pipe are respectively connected to the one-way exhaust at the upper and lower ends of the sealing tube, and the other exhaust port of the exhaust pipe is connected to the nozzle.

[0015] The connection end between the exhaust pipe and the nozzle is a multi-stage sealed elastic telescopic structure. The upper end of the nozzle is provided with a probe rod abutting against the lower end of the sieve plate, and the probe rod keeps moving upward in a stationary state.

[0016] Compared with the prior art, the present invention has at least the following advantages:

[0017] Through the setting of the screening mechanism, the dye raw materials can be effectively screened, which can effectively improve the screening effect on the one hand, and avoid the screening plate from being quickly blocked and affecting the screening effect on the other hand; the jet assembly can cooperate with the screening action to more effectively clean the screening plate and maintain synchronous screening action for jet treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further illustrated by means of the non-limiting examples given in the accompanying drawings.

[0019] Figure 1 The present invention is a schematic structural diagram of a raw material screening device for dye preparation.

[0020] Figure 2 It is a structural schematic diagram from another angle of the present invention.

[0021] Figure 3 It is a structural cross-sectional view of the present invention.

[0022] Figure 4 for Figure 3 A magnified schematic diagram of center A.

[0023] Figure 5 It is a schematic structural diagram of the screening mechanism of the present invention.

[0024] Figure 6 It is a schematic structural diagram of the screening mechanism of the present invention from another angle.

[0025] Top cover 1, motor 11, feed port 12, outer cylinder 2, driven shaft 21, screening plate 22, guide bucket 3, slag discharge window 31, paddle 32, fixing ring 33, springboard 34, push rod 35, sealing cylinder 4, air inlet pipe 41, exhaust pipe 42, nozzle 43, rotary plate 44, float 45, spring 46, telescopic rod 47. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0027] Example 1: Figure 1-6 As shown, a raw material screening device for dye preparation includes a top cover 1, a receiving bucket, a motor 11 and a control panel. The motor 11 is arranged at the upper end of the top cover 1. A main shaft that is rotatably connected to the output shaft of the motor 11 is provided inside the top cover 1. A feed port 12 is provided at the upper end of the top cover 1. A plurality of screening mechanisms are provided between the top cover 1 and the receiving bucket. The main shaft is connected to the plurality of screening mechanisms.

[0028] The screening mechanism includes an outer cylinder 2, a driven shaft 21, a screening plate 22, a guide bucket 3 and a vibrator. The adjacent outer cylinders 2 are connected by flanges, and the outer cylinder 2 is connected to the top cover 1 and the receiving bucket by flanges. The driven shaft 21 is rotatably arranged at the axis of the outer cylinder 2 through a bracket. The driven shaft 21 and the main shaft and the adjacent driven shafts 21 are splined. The screening plate 22 is elastically slidably sleeved on the driven shaft 21 up and down. The guide bucket 3 is fixed in the outer cylinder 2 and is located at the lower side of the screening plate 22. The guide bucket 3 is an eccentric frustum structure with a diameter gradually decreasing from top to bottom. The driven shaft 21 rotates and seals through the guide bucket 3. The vibrator is arranged between the screening plate 22 and the guide bucket 3.

[0029] A slag discharge window 31 is provided on the side of the outer cylinder 2 at the rear side relative to the rotation direction of the motor 11 , and a paddle 32 matching the slag discharge window 31 and the screening plate 22 is provided on the inner wall of the outer cylinder 2 .

[0030] Before screening the dye raw material, according to the actual screening needs, that is, the actual distribution of coarse and fine particles of the dye raw material, the screening mechanisms with different aperture sizes can be flexibly increased or decreased, that is, the screening plates 22 with larger apertures can be increased or decreased, so as to meet the needs of multi-stage screening or fine screening;

[0031] When screening, the top cover 1 and several outer cylinders 2 are first connected and combined with each other, and the apertures of the screen plates 22 are gradually reduced from top to bottom. Then, the motor 11 is turned on through the control panel to use the motor 11 to drive the main shaft and several driven shafts 21 connected to each other to rotate, so that several screen plates 22 rotate synchronously. Finally, the dye raw material is put into the barrel structure composed of the top cover 1 and several outer cylinders 2 through the feed port 12. When the dye is put into the uppermost screen plate 22 through the top cover 1, since all the screen plates 22 are in a rotating motion state with the main shaft, the position of the screen plate 22 corresponding to the feed port 12 changes in real time, and the vibration device is used to adjust the position of the screen plate 22. The vibration effect on the screening plate 22 can effectively screen the dye, so that the dye that meets the particle size of the screening plate 22 is screened downward, while the larger particles of raw materials are intercepted, and at the same time, they are quickly taken away from the feed port 12, and finally guided out of the outer cylinder 2 through the paddle 32 at the slag discharge window 31. This can improve the screening efficiency and avoid a large amount of raw materials from being concentrated on the screening plate 22. On the other hand, it can also avoid the single screening plate 22 being blocked or blocked by part of the dye to affect the screening, and the raw materials screened downward continue to be guided by the bucket 3 to be thrown into the lower screening mechanism in the same way, so as to continue the same screening steps as above;

[0032] The paddle 32 can slide elastically up and down, and keep moving downward in the initial state, so that it can cooperate with the vibrating up and down movement of the screen plate 22 to ensure effective guidance of slag discharge and do not hinder the mutual movement between components.

[0033] The vibrator includes a fixed ring 33, a springboard 34 and a push rod 35. The fixed ring 33 is fixedly connected to the inner wall of the outer tube 2. There are several springboards 34 and they are evenly arranged at the upper end of the fixed ring 33. Compared with the rotation direction of the motor 11, the springboard 34 is gradually raised from bottom to top in a spiral structure. There are several push rods 35 and they are evenly arranged at the lower end of the screening plate 22 and correspond to the position of the fixed ring 33. The screening plate 22 remains downward in a stationary state.

[0034] A ball is provided at the end of the push rod 35 .

[0035] When the screening plate 22 rotates with the driven shaft 21, the push rod 35 at the lower end of the screening plate 22 will synchronously move along the trajectory of the fixing ring 33. When the push rod 35 abuts against the springboard 34, the push rod 35 will be affected by the spiral structure of the springboard 34 to push the screening plate 22 upward until the push rod 35 is separated from the springboard 34. At this time, the elastic reset effect of the screening plate 22 and the impact vibration between the push rod 35 and the fixing ring 33 will cause the raw materials on the upper end of the screening plate 22 to be vibrated and screened. On the one hand, it promotes the screening effect and efficiency, and on the other hand, it reduces the situation where the raw materials are stuck in the filter holes of the screening plate 22. The setting of the ball can reduce the friction loss between the push rod 35 and the fixing ring 33.

[0036] Example 2: Figure 3-5 As shown, based on the further improvement of Example 1, an injection assembly is further provided in the outer tube 2, and the injection assembly includes a sealing tube 4, an exhauster, an air inlet pipe 41, an exhaust pipe 42 and a nozzle 43. The sealing tube 4 is fixed in the outer tube 2 by a bracket and is located at the lower side of the guide bucket 3. The exhauster is provided between the sealing tube 4 and the corresponding driven shaft 21. The exhaust pipe 42 is connected to the air path of the sealing tube 4 and is provided at the lower side of the corresponding screen plate 22. The nozzle 43 is connected to the air outlet end of the exhaust pipe 42 and is located at the lower side of the screen plate 22.

[0037] The extractor includes a rotary plate 44, a float 45, a spring 46 and a telescopic rod 47. The float 45 is slidingly sealed in the sealing tube 4. The telescopic rod 47 is fixedly connected to the upper end of the float 45 and slides out of the sealing tube 4. The telescopic rod 47 slides and seals through the guide bucket 3. The rotary plate 44 is arranged on the driven shaft 21 and is located between the screening plate 22 and the guide bucket 3. The rotary plate 44 is abutted and matched with the telescopic rod 47.

[0038] There are at least two rotating plates 44 disposed in a circular array on the driven shaft 21 . The rotating plates 44 are in a spiral structure as a whole, and the spiral rotation direction matches the rotation direction of the driven shaft 21 .

[0039] The air inlet pipe 41 and the exhaust pipe 42 are both three-way pipes. One of the air inlet ports of the air inlet pipe 41 extends out of the outer tube 2 and is connected to the external environment, and the other two air inlet ports of the air inlet pipe 41 are respectively connected to the one-way air inlet at the upper and lower ends of the sealing tube 4. Two of the exhaust ports of the exhaust pipe 42 are respectively connected to the one-way exhaust at the upper and lower ends of the sealing tube 4, and the other exhaust port of the exhaust pipe 42 is connected to the nozzle 43.

[0040] Furthermore, since the dye raw material is in the form of powder particles as a whole, the smaller the particle size, the easier it is to get clogged in the sieve holes of the sieve plate 22. Compared with particles, some powders are more likely to adhere to the sieve holes of the sieve plate 22. In order to reduce the retention of such small-particle powders, the rotary plate 44 provided on the driven shaft 21 during the sieving process will rotate with the rotation of the main shaft, and push the telescopic rod 47, thereby causing the telescopic rod 47 to move downward and utilize the floating plug 45 to generate negative pressure suction and extrusion in the sealing tube 4. When the floating plug 45 moves downward, negative pressure is generated in the space above the floating plug 45. At this time, the air inlet pipe 41 and the upper end of the sealing tube 4 connect the external air to the sealing tube 4, while the space below the floating plug 45 is squeezed, and the internal air is discharged through the exhaust pipe 42 and the lower end of the sealing tube 4. Finally, it is sprayed out through the nozzle 43, thereby cleaning the sieve holes of the sieve plate 22 with gas, and reducing the retention of powdered raw materials.

[0041] Correspondingly, since both the air inlet pipe 41 and the exhaust pipe 42 are three-way pipes and are respectively connected to the upper and lower ends of the sealing tube 4, when the telescopic rod 47 is disengaged from the rotary plate 44, the spring 46 pushes the float 45, which can reset the float 45 and generate corresponding negative pressure suction or pushing in the upper and lower spaces of the float 45, thereby ensuring that the nozzle 43 can generate gas output at any time in real time to achieve an effective cleaning effect.

[0042] Embodiment 3: A further improvement on embodiment 2, the connection end between the exhaust pipe 42 and the nozzle 43 is a multi-stage sealed elastic telescopic structure, the upper end of the nozzle 43 is provided with a probe rod abutting against the lower end of the sieve plate 22, and the probe rod keeps moving upward in a stationary state.

[0043] In order to further avoid the displacement change of the screen plate 22 caused by vibration screening affecting the cleaning effect of the gas sprayed from the nozzle 43, the probe rod is kept against the lower end of the screen plate 22, and the multi-stage sealing elastic telescopic structure of the connecting end of the exhaust pipe 42 and the nozzle 43 is used to enable the nozzle 43 to maintain a stable distance from the lower end of the screen plate 22, thereby achieving a stable jet cleaning effect.

[0044] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A raw material screening device for dye preparation, comprising a top cover, a receiving bucket, a motor and a control panel, wherein the motor is arranged at the upper end of the top cover, a main shaft connected to the output shaft of the motor is rotatably arranged inside the top cover, and a feed port is provided at the upper end of the top cover, characterized in that: A plurality of screening mechanisms are provided between the top cover and the receiving bucket, and the main shaft is transmission-connected with the plurality of screening mechanisms; The screening mechanism comprises an outer cylinder, a driven shaft, a screening plate, a guide bucket and a vibrator. The adjacent outer cylinders are connected by flanges, the outer cylinder is connected to the top cover and the receiving bucket by flanges, the driven shaft is rotatably arranged at the axis of the outer cylinder through a bracket, the driven shaft is splined with the main shaft and the adjacent driven shafts, the screening plate is elastically slidably sleeved on the driven shaft from top to bottom, the guide bucket is fixedly arranged in the outer cylinder and located at the lower side of the screening plate, the guide bucket is an eccentric frustum structure with a diameter gradually decreasing from top to bottom, the driven shaft rotation seal passes through the guide bucket, and the vibrator is arranged between the screening plate and the guide bucket; The side of the outer cylinder is provided with a slag discharge window at the rear side relative to the rotation direction of the motor, and the inner side wall of the outer cylinder is provided with a paddle matching the slag discharge window and the screening plate; The outer cylinder is also provided with an injection assembly, which includes a sealing cylinder, an exhauster, an air inlet pipe, an exhaust pipe and a nozzle. The sealing cylinder is fixedly arranged in the outer cylinder by a bracket and is located at the lower side of the guide bucket. The exhauster is arranged between the sealing cylinder and the corresponding driven shaft. The exhaust pipe is connected to the air path of the sealing cylinder and is arranged at the lower side of the corresponding sieve plate. The nozzle is connected to the air outlet end of the exhaust pipe and is located at the lower side of the sieve plate. The pumping device comprises a rotary plate, a floating plug, a spring and a telescopic rod, wherein the floating plug sliding seal is arranged in a sealing cylinder, the telescopic rod is fixedly connected to the upper end of the floating plug and slides out of the sealing cylinder, the telescopic rod sliding seal passes through the guide bucket, the rotary plate is arranged on the driven shaft and is located between the screening plate and the guide bucket, and the rotary plate abuts and matches with the telescopic rod; The number of the rotating plates is at least two and they are arranged in a circular array on the driven shaft. The rotating plates are in a spiral structure as a whole and the spiral rotation direction matches the rotation direction of the driven shaft. The air inlet pipe and the exhaust pipe are both three-way pipes, one of the air inlet ports of the air inlet pipe extends out of the outer tube and communicates with the external environment, the other two air inlet ports of the air inlet pipe are respectively communicated with the upper and lower ends of the sealing tube for one-way air inlet, the two exhaust ports of the exhaust pipe are respectively communicated with the upper and lower ends of the sealing tube for one-way exhaust, and the other exhaust port of the exhaust pipe is communicated with the nozzle; The connection end between the exhaust pipe and the nozzle is a multi-stage sealed elastic telescopic structure. The upper end of the nozzle is provided with a probe rod abutting against the lower end of the sieve plate, and the probe rod keeps moving upward in a stationary state.

2. The raw material screening device for dye preparation according to claim 1, characterized in that: The vibrator includes a fixed ring, a springboard and a push rod. The fixed ring is fixedly connected to the inner wall of the outer cylinder. There are several springboards evenly arranged at the upper end of the fixed ring. Compared with the rotation direction of the motor, the springboard is gradually raised from bottom to top in a spiral structure. There are several push rods evenly arranged at the lower end of the screening plate and corresponding to the position of the fixed ring. The screening plate remains downward in a stationary state.

3. The raw material screening device for dye preparation according to claim 2, characterized in that: A ball is arranged at the end of the push rod.

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