Powder conveying device of coating extruder

Abstract

The powder conveying device comprises an extruder unit, the extruder unit comprises an extruder main body and a feeding pipe fixedly installed at one end of the extruder, an insertion pipe is vertically inserted in an opening in the upper end of the feeding pipe in a sliding mode, and the top end of the insertion pipe is fixedly communicated with a powder buffer tank; the powder conveying unit comprises a conveying pipe which is fixedly installed on one side of the extruder body and is obliquely arranged, the top end of the conveying pipe communicates with the powder buffer tank through a telescopic hose, the lower end of the side wall of the conveying pipe fixedly communicates with a corresponding feeding nozzle, and a driving motor is fixedly installed at the lower end of the conveying pipe; and an output shaft of the driving motor penetrates through the end wall of the conveying pipe and is fixedly connected with a conveying screw. According to the powder buffer tank, workers do not need to observe the residual amount of powder in the powder buffer tank all the time, and the working intensity of the workers is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of powder material conveying of a coating extruder, in particular to a powder material conveying device of a coating extruder. Background Art

[0002] The coating extruder is a special equipment that combines coating and extrusion processes. It is mainly used to coat a layer of material on the surface of the substrate. It can also manufacture products of specific shapes through the extrusion process. In the actual production of the coating extruder, its powder buffer tank is mostly fixedly installed above the coating extruder. When adding powder into the powder buffer tank, it is mostly necessary to use the powder conveying device of the coating extruder to achieve it.

[0003] When the powder conveying device of the coating extruder currently used in the market conveys powder to the powder buffer tank, it is often necessary to manually observe the remaining amount of powder in the buffer tank and frequently control the opening of the conveying device, which increases the workload of the staff. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the problems existing in the above-mentioned existing powder conveying device of the coating extruder, the present utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a powder conveying device for a coating extruder, which is suitable for solving the problem that when conveying powder to a powder buffer tank, manual observation of the remaining amount of powder in the buffer tank is often required, and the opening of the conveying device is frequently controlled, which increases the workload of the staff.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a powder conveying device for a coating extruder, comprising:

[0008] The extruder unit comprises an extruder body and a feed pipe fixedly mounted at one end of the extruder, an insertion pipe is vertically slidably inserted at the upper opening of the feed pipe, and the top of the insertion pipe is fixedly connected to a powder buffer tank;

[0009] The powder conveying unit comprises a conveying pipe fixedly installed on one side of the extruder body and arranged in an inclined manner, the top end of the conveying pipe is connected to the powder buffer tank through a telescopic hose, the lower end of the side wall of the conveying pipe is fixedly connected to a corresponding feeding nozzle, the lower end of the conveying pipe is fixedly installed with a driving motor, and the output shaft of the driving motor passes through the end wall of the conveying pipe and is fixedly connected to a conveying screw;

[0010] A feeding control unit is used to control the conveying pipe to convey powder.

[0011] As a preferred solution of the powder conveying device of the coating extruder described in the utility model, the feeding control unit includes a first docking ear fixedly installed at the upper opening of the feed pipe, a second docking ear is fixedly sleeved on the upper end of the side wall of the insertion tube, and a plurality of groups of evenly distributed telescopic columns are fixedly connected between the upper side wall of the first docking ear and the lower side wall of the second docking ear, each of the telescopic columns is sleeved with a corresponding return spring, and a bending plate is fixedly installed on the side wall of the first fixed ear, and a downward elastic extrusion switch is fixedly installed on the upper end of the bending plate, and the elastic extrusion switch is electrically connected to the drive motor.

[0012] As a preferred solution of the powder conveying device of the coating extruder described in the utility model, wherein: the side wall of the powder buffer tank is inlaid with a transparent observation window, and the transparent observation window is provided with evenly distributed scale lines.

[0013] As a preferred solution of the powder conveying device of the coating extruder described in the utility model, wherein: a support plate is fixedly installed on one side of the extruder body, and the conveying pipe is fixedly connected to the support plate through a fixing frame.

[0014] As a preferred solution of the powder conveying device of the coating extruder described in the utility model, wherein: a corresponding trumpet cover is fixedly provided on the top of the feeding nozzle, and the trumpet cover is arranged with a larger opening at the upper end and a smaller opening at the lower end.

[0015] As a preferred solution of the powder conveying device of the coating extruder described in the utility model, the angle between the conveying pipe and the horizontal plane ranges from degrees to degrees.

[0016] The beneficial effects of the utility model are as follows: as the powder in the powder buffer tank continues to decrease, its overall weight gradually decreases, and the originally compressed return spring gradually pushes the powder buffer tank upwards, and when the powder buffer tank and the elastic extrusion switch are against each other, at this time, the elastic extrusion switch controls the output shaft of the drive motor to drive the conveying screw to rotate, and the powder in the conveying pipe is continuously fed into the powder buffer tank, and the total weight of the powder buffer tank increases accordingly, which will squeeze the return spring, and the second fixed ear that originally squeezed the elastic extrusion switch will be separated from it, and the drive motor will be turned off accordingly, there is no need for the staff to always observe the remaining amount of powder in the powder buffer tank, thereby reducing the work intensity of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0018] Figure 1 This is a schematic diagram of the overall structure of a powder conveying device for a coating extruder proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of a conveying pipe of a powder conveying device of a coating extruder proposed by the utility model;

[0020] Figure 3 This is a schematic diagram of the coordination structure of a feeding control unit and an extruder of a powder conveying device of a coating extruder proposed by the utility model;

[0021] Figure 4 The utility model is a schematic structural diagram of a feeding control unit of a powder conveying device of a coating extruder.

[0022] Description of the drawings: 100 extruder unit, 101 extruder body, 102 feed pipe, 103 insertion tube, 104 powder buffer tank, 105 transparent observation window, 200 powder conveying unit, 201 conveying pipe, 202 fixing frame, 203 telescopic hose, 204 feeding nozzle, 205 driving motor, 206 conveying screw, 300 feeding control unit, 301 first docking ear, 302 second docking ear, 303 telescopic column, 304 return spring, 305 bending plate, 306 elastic extrusion switch. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0026] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0027] Example

[0028] Reference Figure 1-Figure 4 , which is an embodiment of the utility model, provides a powder conveying device for a coating extruder, including: an extruder unit 100, a powder conveying unit 200 and a feeding control unit 300.

[0029] The extruder unit 100 includes an extruder body 101 and a feed pipe 102 fixedly installed at one end of the extruder. An insertion pipe 103 is vertically slidably inserted at the upper opening of the feed pipe 102. The top of the insertion pipe 103 is fixedly connected to a powder buffer tank 104. A transparent observation window 105 is inlaid on the side wall of the powder buffer tank 104. The transparent observation window 105 is provided with evenly distributed scale lines. The setting of the transparent observation window 105 is convenient for the staff to intuitively observe the remaining amount of powder in the powder buffer tank 104.

[0030] Furthermore, the powder conveying unit 200 includes a conveying pipe 201 fixedly installed on one side of the extruder body 101 and arranged in an inclined manner. A support plate is fixedly installed on one side of the extruder body 101. The conveying pipe 201 and the support plate are fixedly connected by a fixing frame 202. The angle between the conveying pipe 201 and the horizontal plane is between 30 degrees and 60 degrees. The support plate and the fixing frame 202 are used in coordination to improve the connection stability between the conveying pipe 201 and the extruder body 101. The top of the conveying pipe 201 and the powder buffer tank 104 are connected by a telescopic soft The lower end of the side wall of the delivery pipe 201 is fixedly connected with a corresponding feeding nozzle 204, and a corresponding horn cover is fixedly arranged on the top of the feeding nozzle 204, and the horn cover is arranged to have a large opening at the upper end and a small opening at the lower end. The arrangement of the horn cover facilitates the direct addition of powder to the feeding nozzle 204. In actual use, the feeding nozzle 204 can be connected with the raw material tank through a pipeline. A driving motor 205 is fixedly installed at the lower end of the delivery pipe 201, and the output shaft of the driving motor 205 passes through the end wall of the delivery pipe 201 and is fixedly connected with a delivery screw 206;

[0031] Furthermore, the feeding control unit 300 is used to control the conveying pipe 201 to convey the powder.

[0032] The feeding control unit 300 includes a first docking ear 301 fixedly installed at the upper opening of the feeding tube 102, a second docking ear 302 is fixedly sleeved on the upper end of the side wall of the insertion tube 103, and a plurality of groups of evenly distributed telescopic columns 303 are fixedly connected between the upper side wall of the first docking ear 301 and the lower side wall of the second docking ear 302, each telescopic column 303 is sleeved with a corresponding return spring 304, and a bending plate 305 is fixedly installed on the side wall of the first fixed ear, and a downward elastic squeezing switch 306 is fixedly installed on the upper end of the bending plate 305, and the elastic squeezing switch 306 is electrically connected to the driving motor 205.

[0033] During use, as the powder in the powder buffer tank 104 continues to decrease, its overall weight gradually decreases, and the originally compressed return spring 304 gradually pushes the powder buffer tank 104 upward, and when the powder buffer tank 104 is against the elastic squeezing switch 306, at this time, the elastic squeezing switch 306 then controls the output shaft of the drive motor 205 to drive the conveying screw 206 to rotate, and the powder in the conveying pipe 201 is continuously fed into the powder buffer tank 104, and the total weight of the powder buffer tank 104 increases accordingly, which will squeeze the return spring 304, and the second fixed ear 302 that originally squeezed the elastic squeezing switch 306 will be separated from it, and the drive motor 205 will be turned off accordingly, and there is no need for the staff to always observe the remaining amount of powder in the powder buffer tank 104, thereby reducing the staff's workload.

[0034] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A powder conveying device for a coating extruder, characterized in that: include: An extruder unit (100) comprises an extruder body (101) and a feed pipe (102) fixedly mounted at one end of the extruder, an insertion pipe (103) being vertically slidably inserted at the upper opening of the feed pipe (102), and a powder buffer tank (104) being fixedly connected to the top of the insertion pipe (103); A powder conveying unit (200) comprises a conveying pipe (201) fixedly mounted on one side of an extruder body (101) and arranged in an inclined manner, the top end of the conveying pipe (201) being connected to a powder buffer tank (104) via a telescopic hose (203), the lower end of the side wall of the conveying pipe (201) being fixedly connected to a corresponding feeding nozzle (204), a driving motor (205) being fixedly mounted on the lower end of the conveying pipe (201), and the output shaft of the driving motor (205) passing through the end wall of the conveying pipe (201) and being fixedly connected to a conveying screw (206); The feeding control unit (300) is used to control the conveying pipe (201) to convey the powder.

2. A powder conveying device for a coating extruder according to claim 1, characterized in that: The feeding control unit (300) comprises a first docking ear (301) fixedly mounted at the upper opening of the feeding tube (102); a second docking ear (302) is fixedly sleeved on the upper end of the side wall of the insertion tube (103); a plurality of groups of evenly distributed telescopic columns (303) are fixedly connected between the upper side wall of the first docking ear (301) and the lower side wall of the second docking ear (302); each of the telescopic columns (303) is sleeved with a corresponding return spring (304); a bending plate (305) is fixedly mounted on the side wall of the first fixed ear; a downwardly facing elastic squeezing switch (306) is fixedly mounted on the upper end of the bending plate (305); and the elastic squeezing switch (306) is electrically connected to the driving motor (205).

3. A powder conveying device for a coating extruder according to claim 2, characterized in that: A transparent observation window (105) is inlaid on the side wall of the powder buffer tank (104), and evenly distributed scale lines are arranged on the transparent observation window (105).

4. The powder conveying device for a coating extruder according to claim 1, characterized in that: A support plate is fixedly mounted on one side of the extruder body (101), and the delivery pipe (201) is fixedly connected to the support plate via a fixing frame (202).

5. The powder conveying device for a coating extruder according to claim 1, characterized in that: A corresponding horn cover is fixedly arranged at the top of the feeding nozzle (204), and the horn cover is arranged to have a larger opening at the upper end and a smaller opening at the lower end.

6. The powder conveying device for a coating extruder according to claim 1, characterized in that: The angle between the conveying pipe (201) and the horizontal plane ranges from 30 degrees to 60 degrees.

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