Automatic powder removing device for semi-conductive shielding material

Abstract

The utility model relates to the field of semiconductive shielding material processing equipment, in particular to an automatic powder removing device for semiconductive shielding materials, which comprises a fan and a shell. A feed port, a discharge port and an air outlet are formed in the shell, and the fan is communicated with the air inlet; a single-screw feeder and a filtering channel are arranged in the shell; the filter channel comprises a first section and a second section which are communicated with each other and inclined, the first section is defined by a via hole screen, the second section is defined by a shrunken screen, the shrunken screen comprises a plate body, a tilting block is arranged on the plate body, a powder screening opening is formed between the tilting block and the plate body, and the orientation of the powder screening opening is consistent with the material moving direction. In order to solve the technical problem that existing powder screening equipment has defects, the powder screening device can control the discharging speed through the single-screw feeder, meanwhile, the structure of a traditional screen is improved, an air blower is additionally arranged in the material advancing process, the improved screen structure forms a filtering channel and is combined with the air blower, powder in particles is removed through the air blower, and the powder screening efficiency is improved. And the powder removal effect is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to semi-conductive shielding material processing equipment field, concretely relates to a kind of automatic powder removing device for semi-conductive shielding material. BACKGROUND

[0002] Semi-conductive shielding material is in production process, after granulation, absorption technology of crosslinking agent etc. many particle powders and crosslinking agent powders are produced. Since particle is conductive powder, it can produce adverse effect to equipment, and crosslinking agent powder can cause downstream enterprise to produce old coke risk in use process. Downstream enterprise uses suction machine simultaneously, these powders can also block the filter of suction machine, cause downstream enterprise to cause equipment anomaly in use process. Therefore, it needs to screen powder in semi-conductive shielding material in production process. The existing production process is through discharge valve control to discharge, and then material is through disc sieve, and powder in particle is screened through disc sieve screen.

[0003] But the existing powder screening process has certain defects, such as the following speed cannot be controlled: due to the structure limitation of disc sieve itself, only other equipment can be used to control the discharging speed, if the discharging speed is too fast, particle can cover the surface of screen, powder cannot be screened through screen, eventually, it can seriously reduce the powder removing effect of equipment. UTILITY MODEL CONTENT

[0004] In view of the technical problem that the existing powder screening equipment has defects, the utility model provides a kind of automatic powder removing device for semi-conductive shielding material, it can control the speed of discharging through single screw feeder, improve the structure of traditional screen simultaneously, and increase blast in the process of material advancing, the improved screen structure constitutes filtering channel and blast combination, remove powder in particle through blast, enhance the powder removing effect.

[0005] The utility model provides a technical scheme for automatic powder removing device for semi -conductive shielding material, including fan and casing, the casing top is provided with feed inlet, the casing bottom is provided with discharge gate, the both sides of casing are provided with air inlet and at least one air outlet, the air outlet end of fan communicates with air inlet, be provided with single screw feeder and filter channel in the casing, the material import of single screw feeder communicates with feed inlet, the material export of single screw feeder communicates with the inlet of filter channel, the outlet of filter channel communicates with discharge gate, filter channel is fixed in the casing, filter channel includes first subsection and second subsection who intercommunication and are inclined, first subsection and second subsection constitute transverse V type bending structure, air inlet is towards the opening of V type bending structure, and is located the downside of first subsection, and is located the upside of second subsection, first subsection is surrounded by through -hole screen mesh, second subsection is surrounded by the screen mesh of the mouth of the bag, the screen mesh of the mouth of the bag includes board body, be provided with the block of lifting on board body, the block of lifting and board body form sieve powder mouth between, the direction of sieve powder mouth is consistent with material moving direction.

[0006] Optionally, the single screw feeder comprises a shell, a driving motor and a spiral conveying shaft, the driving motor is fixed on the casing, and the spiral conveying shaft is fixedly connected with the output shaft of the driving motor.

[0007] Optionally, the device further comprises a filter and a powder collector, the air outlet is communicated with an air outlet pipeline, the filter is located at the end of the air outlet pipeline, and the powder collector is arranged on the air outlet pipeline close to the filter.

[0008] Optionally, the size of the sieve powder mouth is less than 3mm.

[0009] Optionally, the discharge gate is provided with a particle screen mesh, and the particle screen mesh is used for screening the particle size of the semi-conductive shielding material particles.

[0010] Optionally, the bottom of the casing is provided with a storage device, and the storage device is used for storing the semi-conductive shielding material particles that do not pass through the particle screen mesh.

[0011] Optionally, the device further comprises a mold temperature controller, and the mold temperature controller is communicated with the air inlet end of the fan.

[0012] Optionally, a dryer is arranged on the communication path between the fan and the air inlet, or on the communication path between the mold temperature controller and the fan.

[0013] Beneficial effects

[0014] Compared with the prior art, the technical scheme has the beneficial effects that: in view of the technical problem of defects existing in the prior powder screening equipment, the utility model can control the speed of discharging through the single screw feeder, meanwhile, the structure of the traditional screen is improved, and the blast is added in the material advancing process, the improved screen structure constitutes the filtering channel and the blast combination, the powder in the particle is removed through the blast, and the powder removing effect is enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 The structure schematic view of the automatic powder removing device for the semi-conductive shielding material is provided for the utility model embodiment.

[0016] Fig. 2 The structure schematic view of the flat screen is provided for the utility model embodiment. DETAILED DESCRIPTION

[0017] In order to further understand the content of the utility model, the utility model is described in detail in combination with the drawings and the embodiments.

[0018] The application will be described in further detail below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only intended to explain the related utility model, and not to limit the utility model. In addition, it should be noted that only parts related to the utility model are shown in the drawings for ease of description. The terms first, second, etc. in the utility model are set for the convenience of describing the technical solutions of the utility model, and have no specific limiting effect, and all refer to the technical solutions of the utility model. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. In the description of the utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance. Unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. The multiple technical solutions in the same embodiment, and the multiple technical solutions of different embodiments can be arranged and combined to form new technical solutions without contradiction or conflict, which are within the scope of the utility model.

[0019] In conjunction with the drawings Figs. 1-2 The embodiment provides an automatic powder removing device for semi-conductive shielding material, which comprises a fan 9 and a shell 1. The shell 1 is provided with an inlet 10 at the top, an outlet 11 at the bottom, and an air inlet and at least one air outlet on the two sides. The air outlet end of the fan 9 is communicated with the air inlet. A single screw feeder 2 and a filtering channel 3 are arranged in the shell 1. The material inlet of the single screw feeder 2 is communicated with the inlet 10, the material outlet of the single screw feeder 2 is communicated with the inlet of the filtering channel 3, and the outlet of the filtering channel 3 is communicated with the outlet 11.

[0020] The filtering channel 3 is fixed in the shell 1, the filtering channel 3 includes the first segment 31 and the second segment 32 which are communicated and are inclined, the first segment 31 and the second segment 32 form a transverse V-shaped bending structure; the air inlet is located at the opening of the V-shaped bending structure, and is located at the lower side of the first segment 31 and the upper side of the second segment 32; the first segment 31 is formed by a through-hole screen, and the second segment 32 is formed by a pinched screen, the pinched screen includes a plate body 320, the plate body 320 is provided with a raised block 321, the raised block 321 and the plate body 320 form a screening port 322, and the screening port 322 is consistent with the material moving direction.

[0021] The single-screw feeder controls the speed of discharging, the structure of the traditional screen is improved, and the blast is added in the material advancing process, the improved screen structure is combined with the filtering channel and the blast, the blast removes the powder in the particles, and the powder removal effect is enhanced.

[0022] The working principle of the automatic powder removal device for the semi-conductive shielding material is as follows: the particle material (i.e., the semi-conductive shielding material) enters the single-screw feeder 2 in the automatic powder removal device for the semi-conductive shielding material from the feeding port 10, the particle material is gradually pushed into the filtering channel 3 along with the rotation of the screw conveying shaft 22 in the single-screw feeder 2, and slides to the discharging port 11 along the filtering channel 3.

[0023] It can be understood that the screw conveying shaft 22 is generally horizontally placed, and can also be slightly inclined. The single-screw feeder 2 can adjust the speed of discharging by adjusting the power of the driving motor 21 to adjust the rotating speed of the screw conveying shaft 22. That is, by the arrangement of the single-screw feeder 2, the adding speed of the particle material can be prevented from being too fast, and the uniformity of the particle material entering the filtering channel 3 can be improved, so that the powder removal effect is optimal.

[0024] The fan 9 continuously blows air into the shell 1 while the single-screw feeder 2 delivers the particle material to the filtering channel 3, and when the particle material slides to the discharging port 11 along the filtering channel 3, the particle material will pass through the first segment 31 and the second segment 32 in turn, and the air volume generated by the fan 9 will also penetrate the filtering channel 3, so as to blow the powder to achieve the screening effect.

[0025] The first segment 31 is formed by a through-hole screen, and the through-hole screen is generally a common small-diameter screen. Since the air inlet is located at the opening of the V-shaped bending structure and is located at the lower side of the first segment 31, most of the powder mixed in the particle material will be blown to the upper side by the first segment 31 when the particle material passes through the first segment 31, so as to be screened out.

[0026] Due to the wind blowing from the oblique side, the irregular particles can be effectively prevented from blocking the gap. In the preferred embodiment, the screen mesh on the upper side can be inverted, which can effectively prevent the particles from blocking the screen mesh.

[0027] After the particle material passes through the first section 31, the flow direction is changed and the particle material enters the second section 32. The second section 32 is surrounded by a pinched screen mesh, which includes a plate body 320, the plate body 320 is provided with a raised block 321, and the raised block 321 and the plate body 320 form a powder screen opening 322. The second section 32 can further effectively screen out the powder, and since the powder screen opening 322 is consistent with the flow direction of the material, the particles can be effectively prevented from blocking the powder screen opening 322. Preferably, the size of the powder screen opening 322 is less than 3mm, generally about 2mm, and the diameter of the particles is generally 3-4mm. The air inlet is located on the upper side of the second section 32, which can effectively blow the powder into the powder screen opening 322.

[0028] In addition to the powder, smaller flaky impurities can also pass through the powder screen opening 322 under the action of the wind, so the setting of the powder screen opening 322 can further improve the impurity removal effect.

[0029] In the preferred embodiment, a filter 4 and a powder collector 5 are further included, and an air outlet is communicated with an air outlet pipeline 12, the filter 4 is located at the end of the air outlet pipeline 12, and the powder collector 5 is arranged on the air outlet pipeline 12 close to the filter 4. In this way, the screened powder can be collected by the powder collector 5, and the filter 4 can prevent the powder from entering the external environment.

[0030] The semi-conductive shielding material has requirements for water vapor content and material temperature control during powder removal, and the water content of the material needs to be controlled, and the material needs to be kept at a constant temperature. If the shielding material is screened and the material temperature drops too fast, it will cause insufficient absorption of the crosslinking agent, and even cause crystallization of the unabsorbed crosslinking agent to affect the product quality. Therefore, a dryer and a mold temperature machine 8 can be added to achieve better dehumidification and temperature preservation effect. Preferably, the mold temperature machine 8 is communicated with the air inlet end of the fan 9, so that the material temperature can be kept constant. The dryer can be arranged on the communication path between the fan 9 and the air inlet, or on the communication path between the mold temperature machine 8 and the fan 9, to achieve the effect of dehumidification. In addition, the power of the fan 9 can be adjusted according to the output and the amount of powder, so as to achieve the best powder removal effect.

[0031] When the particle material passes through the filtering passage 3, it can flow out from the discharge port 11. Preferably, a particle screen 6 is arranged at the discharge port 11, which is used for particle size screening of the semi-conductive shielding material particles. The particles with suitable particle size can flow out from the discharge port 11 into the next link through the particle screen 6, while the larger particles cannot pass through the particle screen 6 and are screened out. In addition, a storage 7 is arranged at the bottom of the shell 1, which can store the semi-conductive shielding material particles that do not pass through the particle screen 6.

[0032] In summary, the automatic powder removing device for the semi-conductive shielding material of the embodiment can control the discharging speed of the semi-conductive shielding material through the single screw feeder 2, enhance the powder removing effect by using the filtering passage 3 composed of different structures, remove the water vapor of the particles at the same time of powder removing, keep the constant material temperature of the material, and adjust the air speed according to the output to achieve the desired powder removing effect.

[0033] The above has described the present application and its embodiments in a schematic manner, which is not restrictive, and the shown in the drawings is only one of the embodiments of the present application, and the actual structure is not limited thereto. Therefore, if the ordinary skilled in the art is inspired thereby, without departing from the creative purpose of the present application, the similar structure and embodiments are designed without creativity, which should all belong to the protection scope of the present application.

Claims

1. An automatic powder removal device for semiconductive shielding materials, characterized in that, The shell (1) is provided with an air inlet (10) at the top, an air outlet (11) at the bottom, and an air inlet and at least one air outlet at both sides. The shell (1) is provided with a single screw feeder (2) and a filtering channel (3), the material inlet of the single screw feeder (2) is communicated with the air inlet (10), the material outlet of the single screw feeder (2) is communicated with the inlet of the filtering channel (3), and the outlet of the filtering channel (3) is communicated with the air outlet (11). The filtering channel (3) is fixed in the shell (1) and comprises a first segment (31) and a second segment (32) which are communicated and inclined, and form a transverse V-shaped bending structure; the air inlet is located at the lower side of the first segment (31) and the upper side of the second segment (32). The first segment (31) is surrounded by a through-hole screen, and the second segment (32) is surrounded by a concave screen, the concave screen comprises a plate body (320), the plate body (320) is provided with a raised block (321), and a sieve powder port (322) is formed between the plate body (320) and the raised block (321), and the direction of the sieve powder port (322) is consistent with the material moving direction. The single screw feeder (2) comprises a shell (20), a driving motor (21) and a spiral conveying shaft (22), the driving motor (21) is fixed on the shell (1), and the spiral conveying shaft (22) is fixedly connected with the output shaft of the driving motor (21).

2. The automatic powder removing device for a semiconductive shielding material according to claim 1, characterized by The device further comprises a filter (4) and a powder collector (5), the air outlet is communicated with an air outlet pipeline (12), the filter (4) is located at the end of the air outlet pipeline (12), and the powder collector (5) is arranged on the air outlet pipeline (12) close to the filter (4).

3. The automatic powder removing device for a semiconductive shielding material according to claim 1, characterized by The size of the sieve powder port (322) is less than 3mm.

4. The automatic powder removing device for a semiconductive shielding material according to claim 1, characterized by The air outlet (11) is provided with a particle screen (6) for screening the particle size of the semi-conductive shielding material particles.

5. The automatic powder removing device for a semiconductive shielding material according to claim 1, characterized by The bottom of the shell (1) is provided with a storage device (7) for storing the semi-conductive shielding material particles that do not pass through the particle screen (6).

6. The automatic powder removing device for a semiconductive shielding material according to claim 5, characterized by The device further comprises a mold temperature controller (8) which is communicated with the air inlet of the air blower (9).

7. The automatic powder removing device for a semiconductive shielding material according to claim 1, wherein A dryer is arranged on the communication path of the air blower (9) and the air inlet, or on the communication path of the mold temperature controller (8) and the air blower (9).

8. The automatic powder removing device for a semiconductive shielding material according to claim 7, characterized by ​

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