CN111545369B

CN111545369B - Dust collecting and preventing device for powder sprayer

Info

Publication number: CN111545369B
Application number: CN202010451219.9A
Authority: CN
Inventors: 张志刚
Original assignee: Henan Yilong Industrial Co ltd
Current assignee: Henan Yilong Industrial Co ltd
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2021-12-10
Anticipated expiration: 2040-05-25
Also published as: CN111545369A

Abstract

The invention relates to a dust collecting and preventing device for a powder blower; the technical scheme who solves includes the box, the top of box is equipped with a duster that can evenly spread powder to the box in, the left and right sides of box respectively is equipped with the logical groove of a rectangle, the upper and lower both ends of every logical groove respectively articulate there is a baffle, two baffles keep vertical form and will correspond logical groove block under no exogenic action, logical groove is when being blocked by two baffles between two baffles reserve a gap that can supply PVC calendering transparent film to pass through, both sides are equipped with drawer type dust collection box around the box lower extreme, the dust collection box opening up and the bottom is equipped with the heater strip, the equipartition has a plurality of vertical through-holes on four lateral walls of dust collection box, the bottom half is equipped with the suction hood, be equipped with the suction fan in the suction hood, the suction fan top is equipped with the filter screen, the bottom half is equipped with a plurality of messenger and the ventilation passageway of vertical through-hole and suction hood intercommunication.

Description

Dust collecting and preventing device for powder sprayer

Technical Field

The invention relates to the field of PVC calendering transparent film production, in particular to a dust collecting and preventing device for a powder blower.

Background

In the production process of the PVC calendered transparent film, in order to prevent the surface from being stained, anti-sticking powder is sprayed on the surface, commonly called dusting, a set of special device, namely a dusting machine is provided, when the dusting machine is used for dusting the surface of the film, superfine powder particles are atomized through a high-voltage wire of the dusting machine and are scattered on the surface of the film, and the powder is fine and light, and can float around when even weak airflow is met, so that on one hand, the surrounding environment and equipment are polluted, on the other hand, the non-uniform dusting is also caused, the powder accumulated on the surface of the equipment on the film can naturally slide to a certain degree and fall on the surface of the film to form large spots, and the large spots are not allowed.

Disclosure of Invention

In view of the above situation, the present invention provides a dust collecting and preventing device for a powder blower, which effectively improves the surrounding environment of powder scattering, prevents the powder scattering from being affected by air flow, ensures more uniform powder scattering, and allows the fallen residual powder to be stored in a powder collecting tank and be reused.

The technical scheme of its solution problem includes a box, the top of box is equipped with a duster that can evenly spread powder to the box in, the left and right sides of box respectively is equipped with the logical groove of a rectangle, the upper and lower both ends of every logical groove respectively articulate there is a baffle, two baffles keep vertical form and will correspond logical groove block under no exogenic action, logical groove is when being blocked by two baffles between two baffles reserve a gap that can supply PVC calendering transparent film to pass through, both sides are equipped with drawer type dust collection box around the box lower extreme, the dust collection box opening is up and the bottom is equipped with the heater strip, the equipartition has a plurality of vertical through-holes on four lateral walls of dust collection box, the bottom half is equipped with the suction hood, be equipped with the suction fan in the suction hood, the suction fan top is equipped with the filter screen, the bottom half is equipped with a plurality of messenger and the ventilation passageway of vertical through-hole and suction hood intercommunication.

The invention has novel concept, smart structure and strong practicability, effectively improves the peripheral environment of powder spreading, ensures that the powder spreading is not influenced by air flow, ensures more uniform powder spreading, and ensures that the fallen residual powder is stored in the powder collecting groove and can be reused.

Drawings

FIG. 1 is a front sectional view of the present closure closing a through slot.

Fig. 2 is a front sectional view of the baffle of the present invention rotated to the horizontal.

Fig. 3 is a front view of the present invention.

FIG. 4 is an enlarged view of a portion of the area A in FIG. 1 according to the present invention.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

As can be seen from fig. 1 to 4, the dust spreading device comprises a box body 1, a powder spreading machine 2 capable of uniformly spreading powder into the box body 1 is arranged above the box body 1, rectangular through grooves 3 are respectively arranged on the left side and the right side of the box body 1, a baffle 4 is respectively hinged to the upper end and the lower end of each through groove 3, the two baffle 4 keep vertical without external force and block the corresponding through groove 3, a gap for a calendered PVC transparent film to pass through is reserved between the two baffle 4 when the through grooves 3 are blocked by the two baffle 4, drawer type dust collecting boxes 5 are arranged on the front side and the rear side of the lower end of the box body 1, openings of the dust collecting boxes 5 are upward, heating wires 6 are arranged at the bottoms of the dust collecting boxes 5, a plurality of vertical through holes 7 are uniformly distributed on the four side walls of the dust collecting boxes 5, an air suction hood 8 is arranged at the bottom of the box body 1, an air suction fan 9 is arranged in the air suction hood 8, a filter screen 10 is arranged above the air suction fan 9, and a plurality of ventilation channels communicated with the vertical through holes 7 and the air suction hood 8 are arranged at the bottom of the box body 1.

In order to facilitate the PVC calendering transparent film to pass through the device, a group of rotatable rotating rollers 11 are respectively arranged on the left side and the right side of the box body 1, a bracket is arranged below the rotating rollers 11, an electrostatic eliminator 12 is arranged between the left rotating roller 11 and the box body 1, and the electrostatic eliminator 12 corresponds to the upper surface and the lower surface of the PVC calendering film.

In order to facilitate the installation of the powder spreader 2, a powder spreading channel is arranged on the end face of the box body 1, the powder spreader 2 is arranged right above the powder spreading channel, the left side and the right side of the powder spreader 2 are respectively provided with an L-shaped dustproof plate fixed on the box body 1 through bolts, and the two dustproof plates are assembled and then tightly attached to the outer edge face of the powder spreader 2, so that the two dustproof plates and the powder spreader 2 form a closed cavity and cover the powder spreading part of the powder spreader 2 in the closed cavity.

In order to facilitate the installation of the heating wire 6 in the dust collecting box 5, a closed installation bin for installing the heating wire 6 is arranged at the bottom of the dust collecting box 5, and the heating wire 6 is arranged in the closed installation bin.

In order to keep the baffle 4 in a vertical state when no external force is applied, a return coil spring is coaxially fixed on a hinge shaft of the baffle 4, and the return coil spring keeps the baffle 4 in a vertical state when the baffle 4 is not applied with the external force.

In order to facilitate the installation and the taking out of the baffle 4, the walls of the through grooves 3 on the left side and the right side are provided with installation grooves of rotating shafts of the baffle 4, and the baffle 4 can be installed and taken out through the installation grooves.

The specific working process of the invention is as follows: firstly, a PVC calendered transparent film is placed into a box body 1 from a through groove 3 at the left end and extends out from a through groove 3 at the right end of the box body 1, the PVC calendered transparent film is flattened in the box body 1, meanwhile, an electrostatic eliminator 12 is close to the PVC calendered transparent film from the upper end surface and the lower end surface to ensure the complete elimination of static electricity, the PVC calendered transparent film is supported and rotated in an auxiliary way through a rotating roller 11, a powder scattering machine 2 is opened, a suction fan 9 is opened, the suction fan 9 keeps a low rotating speed, weak air generated at the rotating speed enables air to flow in the box body 1 through a ventilation channel and a vertical through hole 7 without causing a large amount of powder to be sucked away by the suction fan 9, the powder scattering machine 2 is a complete set of introducing equipment, powder is atomized by a high-pressure line of the powder scattering machine 2, is in a cloud shape at the periphery of the high-pressure line and slowly falls on the PVC calendered transparent film, and the air uniformly flows in the box body 1 under the action of the suction fan 9, the powder is enabled to be more uniformly scattered on the PVC calendering transparent film, the powder which does not fall on the PVC calendering transparent film finally falls into the dust collection box 5, and the heating wire 6 in the dust collection box 5 effectively prevents the moisture absorption, accumulation and hardening of the powder.

Wherein the dust guard of L shape adopts the line stainless steel plate of weaving, it is the working face to weave the line, the powder falls on weaving the line like this, can not fall down easily, can pull down the dust guard after production a period, it is clean through the high pressure air gun, the box 1 is located the dust collection box 5 above parts and all adopts the stainless steel plate of weaving the line with the surface of powder contact, prevent that the powder thickness from piling up and falling on the film and forming the powder spot, vertical through-hole 7 also adopts the air gun to wash with the ventilation passageway when regular cleaning, can not cause the jam of vertical through-hole 7 and ventilation passageway.

Compared with the traditional equipment, the device has the following advantages: through setting up duster 2 at the top of box 1, dust guard about the cooperation to cooperate the airflow constant circulation in the box 1 through suction fan 9 and filter screen 10 realization, effectively block external air current simultaneously and influence duster 2 dusting, make whole dusting process more high-efficient, and realize the recovery of powder and effectively having practiced thrift the cost in the utilization through the box that gathers materials that increases the powder recovery.

The invention has novel conception, ingenious structure and strong practicability, effectively improves the peripheral environment of powder spreading, the powder spreading is not influenced by air flow, the powder spreading is more uniform, the fallen residual powder is stored in the powder collecting groove and can be reused, the cleaning and the disassembly are convenient because the L-shaped dust guard plates at the left side and the right side are arranged according to the left side and the right side of the powder spreading machine, and simultaneously the problem of inconvenient powder adding caused by the fact that the traditional dust guard covers the whole powder spreading machine is avoided, the upper protective cover is required to be removed when the traditional dust guard is used for powder adding, the left glass baffle plate and the right glass baffle plate are convenient for observing the powder spreading condition in the box body, the left baffle plate and the right baffle plate are convenient for disassembly, on one hand, the cleaning is convenient, on the other hand, when the powder spreading is not required in production, the baffle plates can be operated more conveniently without installing, the interval between the upper baffle plate and the lower baffle plate is two millimeters, the falling track can be prevented from being disturbed by external air flow, when the different production and the film is broken, the thick film mass can push the upper baffle plate and the lower baffle plate to pass through the box body smoothly, and after the film thickness becomes normal, the upper baffle and the lower baffle are naturally closed.

Claims

1. A dust collecting and preventing device for a powder sprayer comprises a box body (1) and is characterized in that a powder scattering machine (2) capable of uniformly scattering powder into the box body (1) is arranged above the box body (1), rectangular through grooves (3) are respectively arranged on the left side and the right side of the box body (1), a baffle (4) is respectively hinged to the upper end and the lower end of each through groove (3), the two baffles (4) keep vertical without external force and block the corresponding through groove (3), a gap through which a PVC calendering transparent film can pass is reserved between the two baffles (4) when the through grooves (3) are blocked by the two baffles (4), drawer type dust collecting boxes (5) are arranged on the front side and the rear side of the lower end of the box body (1), heating wires (6) are arranged at the upward opening and the bottom of each dust collecting box (5), a plurality of vertical through holes (7) are uniformly distributed on the four side walls of each dust collecting box (5), the bottom of the box body (1) is provided with an air suction cover (8), an air suction machine (9) is arranged in the air suction cover (8), a filter screen (10) is arranged above the air suction machine (9), and the bottom of the box body (1) is provided with a plurality of ventilation channels which are communicated with the vertical through holes (7) and the air suction cover (8);

the upper end face of the box body (1) is provided with a powder spreading channel, the powder spreader (2) is arranged right above the powder spreading channel, the left side and the right side of the powder spreader (2) are respectively provided with an L-shaped dustproof plate fixed on the box body (1) through bolts, and the two dustproof plates are assembled and then tightly attached to the outer edge face of the powder spreader (2), so that the two dustproof plates and the powder spreader (2) form a closed cavity and the powder spreader (2) is partially covered in the closed cavity;

the surface of the box body (1) which is positioned above the dust collecting box (5) and is contacted with the powder is made of a stainless steel plate with woven lines.

2. The dust collecting and preventing device for the powder blower of claim 1, wherein the left and right sides of the box body (1) are respectively provided with a set of rotatable rollers (11), a bracket is arranged below the rollers (11), a static eliminator (12) is arranged between the left roller (11) and the box body (1), and the static eliminator (12) corresponds to the upper and lower surfaces of the PVC film.

3. The dust collecting and preventing device for the powder blower as claimed in claim 1, wherein the bottom of the dust collecting box (5) is provided with a sealed installation bin for installing the heating wire (6), and the heating wire (6) is arranged in the sealed installation bin.

4. The dust collecting and preventing device for the powder blower of claim 1, wherein the hinged shaft of the baffle (4) is coaxially fixed with a return coil spring, and the return coil spring keeps the baffle (4) vertical when the baffle (4) is not subjected to external force.

5. The dust collecting and preventing device for powder blower as set forth in claim 1 includes installing slots for the rotation shaft of the baffle (4) in the through slots (3) on the right and left sides, and the baffle (4) may be installed and taken out via the installing slots.