A high-transparent polypropylene production to prevent powder components

Abstract

The utility model relates to the technical field of polypropylene processing equipment, and specifically to a high-transparency polypropylene production powder prevention component, comprising a box body and a rotating shaft arranged in the box body, a driving motor is also arranged in the box body, and the output shaft of the driving motor is fixedly connected to one end of the rotating shaft. The powder prevention component also includes: a material-dispensing piece for dispersing high-transparency polypropylene incoming materials, and the material-dispensing piece is installed on the other end of the rotating shaft; an inverted V-shaped guide frame, when in use, the output shaft of the driving motor drives a cam and the material-dispensing piece to rotate synchronously, and the material-dispensing piece dispenses the material to both sides of the guide frame and slides down, and at the same time, under the push of the flange of the cam, the sieve plates on both sides can perform a screening action on the material falling thereon in the box body, and cooperate with the constant heat preservation state created by the heating plate in the inner cavity of the box body to avoid the material from cooling too fast and precipitating microcrystalline powder, so as to prevent the generation of powder.

Description

Technical Field

[0001] The utility model relates to the technical field of polypropylene processing equipment, in particular to a high-transparency polypropylene production powder prevention component. Background Art

[0002] Highly transparent polypropylene materials have excellent transparency, good physical properties and cost-effectiveness. During the production process, screening is required to prevent large particles from causing wear on the screw, die head, etc. In order to prevent dust from appearing during the screening stage and causing safety hazards, existing technologies will perform routine operations to remove powder from the incoming materials using a fan.

[0003] For example, the Chinese patent application number CN202121115392.8 discloses a screening device for the production of polypropylene particles, including a box body, a sieve plate is provided in the box body, and the sieve plate is evenly spaced and covered with sieve holes. The inside of the box body is respectively provided with a first cavity and a second cavity through the sieve plate, a motor is fixedly installed on one side of the box body, and a fan is fixedly installed on the side of the box body away from the motor. During the material screening process, the impurities adhering to the surface of the particles can be extracted and dusted in time to protect the sieve plate from accumulating material impurities and screening. However, in actual use, the fan blows out cold air, and the highly transparent polypropylene material contains a variety of additives. Although blowing cold air directly to the material can temporarily remove the dust attached to the surface, the incomplete melt has no time to crystallize because the incoming material cools down too quickly, which will cause microcrystalline powder to precipitate on the surface of the material again, and the de-powdering effect is poor. Utility Model Content

[0004] In view of this, the purpose of the utility model is to propose a high-transparency polypropylene production powder prevention component to solve the technical problem in the prior art of directly blowing cold air to the material, which causes the incomplete melt to cool down too quickly and have no time to crystallize, resulting in microcrystalline powder precipitation on the surface of the material again and poor de-powdering effect.

[0005] Based on the above purpose, the utility model provides a high-transparency polypropylene production powder prevention component, including a box body and a rotating shaft arranged in the box body, a drive motor is also provided in the box body, and the output shaft of the drive motor is fixedly connected to one end of the rotating shaft. The powder prevention component also includes:

[0006] A material shifting member for shifting incoming high-transparency polypropylene material, the material shifting member being mounted on the other end of the rotating shaft;

[0007] an inverted V-shaped guide frame, the guide frame being fixedly mounted in the box, and a heating plate being mounted on the guide frame;

[0008] A screening mechanism for screening high-transparency polypropylene incoming material is installed on the guide frame.

[0009] Furthermore, the screening mechanism includes a partition, a cam and a screen plate. There are two partitions and they are respectively installed on both sides of the guide frame. The cam is installed on the output shaft of the drive motor. A sliding rod is slidably provided on the partition. A top plate is installed at one end of the sliding rod. The top plate rests on the outer edge of the cam. A spring is sleeved on the sliding rod between the top plate and the partition. The other end of the sliding rod passes through the partition and is installed with a slider. The screen plate is slidably provided on the guide frame. A slip ring is installed at the lower end of the screen plate, and the slider is slidably provided in the slip ring.

[0010] Furthermore, the material-diverting member is a fan-blade structure, and the material-diverting member corresponds to the upper material inlet of the box body.

[0011] Furthermore, both sides of the upper portion of the guide frame are provided with mounting grooves, and the heating plate is arranged in the mounting grooves.

[0012] Furthermore, the side ends of the partitions are bolted and fixed to the box body, and the driving motor is installed between the two partitions through a mounting plate.

[0013] Furthermore, adjacent sides of the box body are respectively provided with a first discharge port and a second discharge port, and the lower end of the sieve plate is placed on one of the discharge ports.

[0014] The beneficial effects of the utility model are as follows: a high-transparency polypropylene of the utility model is used to produce a powder prevention component. When in use, the output shaft of the driving motor drives the cam and the material shifting piece to rotate synchronously. The material shifting piece shifts the material to both sides of the guide frame and slides down. At the same time, under the push of the flange of the cam, the sieve plates on both sides can screen the material falling thereon in the box body. Combined with the constant heat preservation state created by the heating plate in the inner cavity of the box body, it can prevent the material from cooling too quickly and precipitating microcrystalline powder, thereby preventing the generation of powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic diagram of the structure of the utility model without a box body;

[0017] Figure 2 This is a structural diagram of the utility model in a box state;

[0018] Figure 3This is a schematic structural diagram of the screening mechanism in the present utility model;

[0019] Figure 4 It is a schematic diagram of the assembly of some structures in the utility model;

[0020] Figure 5 This is a schematic diagram of the assembly of the guide frame and the heating plate in the utility model;

[0021] The following are marked in the figure:

[0022] 1. Box body; 2. Rotating shaft; 3. Driving motor; 4. Material shifting piece; 5. Guide frame; 6. Heating plate; 7. Partition; 8. Cam; 9. Screen plate; 10. Slide bar; 11. Top plate; 12. Spring; 13. Slider; 14. Slip ring; 15. Mounting groove; 16. Mounting plate; 17. Discharge port 1; 18. Discharge port 2. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0024] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the usual meanings understood by people with ordinary skills in the field to which this utility model belongs. The "first", "second" and similar words used in this utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0025] The utility model proposes a method for producing a powder-proof component of high-transparent polypropylene, such as Figures 1 to 5 As shown, it includes a box body 1 and a rotating shaft 2 arranged in the box body 1. A driving motor 3 is also arranged in the box body 1. The output shaft of the driving motor 3 is fixedly connected to one end of the rotating shaft 2. The powder prevention component also includes:

[0026] A material dispensing member 4 is used to disperse the incoming high-transparent polypropylene material, and the material dispensing member 4 is installed on the other end of the rotating shaft 2;

[0027] An inverted V-shaped guide frame 5 is fixedly installed in the box body 1, and a heating plate 6 is installed on the guide frame 5;

[0028] The screening mechanism is used for screening high-transparency polypropylene incoming material, and the screening mechanism is installed on the guide frame 5.

[0029] In this embodiment, the screening mechanism includes a partition 7, a cam 8 and a sieve plate 9. There are two partitions 7 and they are respectively installed on both sides of the guide frame 5. The cam 8 is installed on the output shaft of the drive motor 3. A slide rod 10 is slidably provided on the partition 7. A top plate 11 is installed at one end of the slide rod 10. The top plate 11 rests on the outer edge of the cam 8. A spring 12 is sleeved on the slide rod 10 between the top plate 11 and the partition 7. The other end of the slide rod 10 passes through the partition 7 and is installed with a slider 13. The sieve plate 9 is slidably set on the guide frame 5. A slip ring 14 is installed at the lower end of the sieve plate 9, and the slider 13 is slidably set in the slip ring 14.

[0030] In this embodiment, when in use, the driving motor 3 is turned on so that its output shaft drives the cam 8 and the material-digging member 4 to rotate synchronously, and then the material to be screened is placed from the upper feeding port of the box body 1. The material is moved to both sides of the guide frame 5 by the material-digging member 4 and slides down along the inclined surfaces on both sides of the guide frame 5. The heating plates 6 installed on both sides of the guide frame 5 can keep the inner cavity of the box body 1 in a constant heat-insulating state. In this state, the dispersed materials after being moved are also kept warm, so as to avoid the material from cooling too quickly and precipitating microcrystalline powder.

[0031] At the same time, pushed by the flange of the cam 8, the slide rod 10 can be driven to slide on the partition 7 through the top plate 11, and the slider 13 slides on the slip ring 14, so that the sieve plate 9 on this side slides synchronously along the inclination angle of the heating plate 6. At this time, the spring 12 on this side is in a compressed state, and when the flange of the cam 8 rotates to the top plate 11 on the other side, the spring 12 will drive the sieve plate 9 to reset under its own elastic action, and the sieve plate 9 on the other side will slide and reset in the same way, so that the sieve plates 9 on both sides can screen the materials falling thereon in the box body 1. The qualified materials are screened without powder under the heat preservation state, and the larger particles are screened out of the discharge port 17 at the end of the sieve plate 9.

[0032] In this embodiment, if Figure 1 、 Figure 2 、 Figure 4 As shown, the material-diverting member 4 is a fan-blade structure, which corresponds to the upper feed port of the box body 1. After the material is placed through the upper feed port of the box body 1, it is quickly diverted by the fan-shaped structure on the material-diverting member 4, and the gathered material is quickly dispersed in the box body 1, so that all materials can maintain a constant temperature.

[0033] In this embodiment, if Figure 1 、 Figure 3 、 Figure 5As shown, mounting grooves 15 are provided on both sides of the upper portion of the guide frame 5, and the heating plate 6 is arranged in the mounting grooves 15. The heating plate 6 allows the material to quickly roll down to the sieve plate 9 below without affecting the shape of the material.

[0034] In addition, preferably, Figure 1 、 Figure 3 As shown, the side ends of the partitions 7 are bolted to the box body 1, and the drive motor 3 is installed between the two partitions 7 through the mounting plate 16. The screened material will not enter the area between the two partitions 7, avoiding falling into the area and making cleaning inconvenient.

[0035] In this embodiment, if Figure 2 As shown, adjacent sides of the box body 1 are respectively provided with a discharge port 17 and a discharge port 2 18, and the lower end of the sieve plate 9 is placed at the discharge port 17. The qualified and unqualified materials after screening are collected, and the unqualified material particles are reprocessed.

[0036] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Within the scope of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0037] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A high-transparency polypropylene production powder prevention component, comprising a box (1) and a rotating shaft (2) arranged in the box (1), wherein a driving motor (3) is also arranged in the box (1), and an output shaft of the driving motor (3) is fixedly connected to one end of the rotating shaft (2), characterized in that: The powder protection kit also includes: A material shifting member (4) for shifting incoming highly transparent polypropylene material, wherein the material shifting member (4) is mounted on the other end of the rotating shaft (2); An inverted V-shaped guide frame (5), the guide frame (5) being fixedly installed in the box body (1), and a heating plate (6) being installed on the guide frame (5); A screening mechanism for screening high-transparency polypropylene incoming material, wherein the screening mechanism is installed on the guide frame (5).

2. A highly transparent polypropylene production powder prevention component according to claim 1, characterized in that: The screening mechanism comprises a partition (7), a cam (8) and a screen plate (9). There are two partitions (7) and they are respectively installed on both sides of the guide frame (5). The cam (8) is installed on the output shaft of the drive motor (3). A slide rod (10) is slidably arranged on the partition (7). A top plate (11) is installed at one end of the slide rod (10). The top plate (11) abuts against the outer edge of the cam (8). A spring (12) is sleeved on the slide rod (10) between the top plate (11) and the partition (7). The other end of the slide rod (10) passes through the partition (7) and is installed with a slider (13). The screen plate (9) is slidably arranged on the guide frame (5). A slip ring (14) is installed at the lower end of the screen plate (9). The slider (13) is slidably arranged in the slip ring (14).

3. A highly transparent polypropylene production powder prevention component according to claim 1, characterized in that: The material shifting member (4) is a fan blade structure, and the material shifting member (4) corresponds to the upper material inlet of the box body (1).

4. A highly transparent polypropylene production powder prevention component according to claim 1, characterized in that: Both sides of the upper part of the guide frame (5) are provided with mounting grooves (15), and the heating plate (6) is arranged in the mounting grooves (15).

5. A highly transparent polypropylene production powder prevention component according to claim 2, characterized in that: The side ends of the partitions (7) are bolted and fixed to the box body (1), and the drive motor (3) is installed between the two partitions (7) via a mounting plate (16).

6. A highly transparent polypropylene production powder prevention component according to claim 2, characterized in that: Adjacent sides of the box body (1) are respectively provided with a discharge port 1 (17) and a discharge port 2 (18), and the lower end of the sieve plate (9) is mounted on the discharge port 1 (17).

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