A negative pressure conveyor for plastic foamed particles

By introducing a negative pressure suction nozzle mechanism with a sealing block and bolt rod connection and a detachable filter assembly into the negative pressure conveyor for plastic foam granules, the problems of non-removable negative pressure suction nozzles and large particle filtration are solved, improving the ease of operation and conveying effect.

CN224677295UActive Publication Date: 2026-08-25ANHUI OLIN AUTOMOBILE LIGHTWEIGHT TECH CO LTD
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Patent Information

Application Number
CN202521782569.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-21
Publication Date
2026-08-25
Estimated Expiration
2035-08-21

AI Technical Summary

Technical Problem

The existing negative pressure conveyor for plastic foam granules cannot disassemble the negative pressure suction nozzle, which increases the labor intensity of operators and cannot filter large plastic foam granules, affecting the conveying effect.

Method used

A negative pressure suction nozzle mechanism and a detachable filter assembly were designed, which include a sealing block and a bolt rod connection. The nozzle can be easily disassembled and the filter screen can be installed through a threaded connection, ensuring sealing effect and filtration efficiency.

Benefits of technology

It enables convenient disassembly of the negative pressure suction nozzle and effective filtration of large particles, reducing the difficulty of operation and improving the conveying efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of plastic foamed particle, especially a plastic foamed particle negative pressure conveyor, including the bottom plate, the top of bottom plate all is equipped with the fixed frame, and the top of fixed frame is equipped with the flange disc main part, the top of flange disc main part is equipped with the round tub main part, the bottom of flange disc main part is equipped with the conical tub, and the bottom of conical tub is equipped with the connecting pipe, the sidewall of round tub main part is equipped with L type support frame, and the top of L type support frame is equipped with negative pressure machine mechanism, the input of negative pressure machine mechanism is equipped with the L type pipe that is linked with the top of round tub main part communicates.
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Description

Technical Field

[0001] This utility model relates to the field of plastic foam granule technology, and in particular to a negative pressure conveyor for plastic foam granules. Background Technology

[0002] Foamed plastics are porous materials made through a foaming process, primarily using resins such as polystyrene and polyurethane as the base material. The principle involves forming a microporous structure within the plastic through chemical, physical, or mechanical means. There are two types: open-cell and closed-cell. Chemical foaming relies on the decomposition of a foaming agent to generate gas, physical foaming is achieved through liquid vaporization, and mechanical foaming uses a gas mixing process. This material possesses low thermal conductivity, high cushioning, and sound insulation properties. Foamed plastic granules are also porous materials made through a foaming process, primarily using resins such as polystyrene and polyurethane as the base material. After processing, they form granular structures with a diameter of 2-7 mm. During the processing of foamed plastic granules, a negative pressure conveyor is typically used to transport them.

[0003] Currently, most negative pressure conveyors for plastic foam granules on the market do not allow for the disassembly and replacement of their negative pressure nozzles during operation, causing inconvenience to operators and increasing their workload. Furthermore, they cannot filter large plastic foam granules during transport, thus affecting the conveying efficiency. Therefore, a new type of negative pressure conveyor for plastic foam granules is needed to meet these user needs. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] Given that most negative pressure conveyors for plastic foam granules on the market, as described above or in the existing technology, cannot disassemble and replace the negative pressure nozzles during use, causing inconvenience to operators and increasing their workload, and also cannot filter large plastic foam granules during transport, thus affecting the conveying effect of the negative pressure conveyor, a new type of negative pressure conveyor for plastic foam granules is needed to meet people's needs.

[0006] Therefore, the purpose of this utility model is to provide a negative pressure conveyor for plastic foam granules.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a negative pressure conveyor for plastic foam granules, including a base plate, a fixing frame installed at the top of the base plate, a flange body installed at the top of the fixing frame, a cylindrical body installed at the top of the flange body, a conical barrel installed at the bottom of the flange body, a connecting pipe installed at the bottom of the conical barrel, an L-shaped support frame installed on the side wall of the cylindrical body, a negative pressure mechanism installed at the top of the L-shaped support frame, an L-shaped pipe connected to the top of the cylindrical body installed at the input end of the negative pressure mechanism, a connecting hose installed at the output end of the negative pressure mechanism, a first mounting frame installed at the bottom of the connecting hose, a negative pressure suction nozzle mechanism sleeved at the bottom of the first mounting frame, and a filter assembly sleeved at the bottom of the negative pressure suction nozzle mechanism.

[0008] As a preferred embodiment of the negative pressure conveyor for plastic foam granules of this utility model, the outer wall of the first mounting frame is provided with a sealing groove and a first threaded hole.

[0009] As a preferred embodiment of the negative pressure conveyor for plastic foam granules of this utility model, the negative pressure suction nozzle mechanism includes a suction tube body, a second mounting frame is installed at the top of the suction tube body, and the second mounting frame is sleeved on the outer wall of the first mounting frame. The side walls of the second mounting frame are provided with second threaded holes, and bolt rod bodies are threadedly connected to the inside of the second threaded holes. The bolt rod bodies are threadedly connected to the first threaded holes, and external threaded bodies are installed on the outer wall of the suction tube body.

[0010] As a preferred embodiment of the negative pressure conveyor for plastic foam granules of this utility model, the inner wall of the second mounting frame is equipped with a sealing block body, and the sealing block body and the sealing groove are engaged with each other.

[0011] As a preferred embodiment of the negative pressure conveyor for plastic foam granules of this utility model, the filter assembly includes a mounting frame body, which is sleeved on the outer wall of the suction tube body. A filter screen frame body is installed inside the mounting frame body. The inner wall of the mounting frame body is equipped with an internal thread body, and the internal thread body is threadedly connected to the external thread body.

[0012] In a preferred embodiment of the negative pressure conveyor for plastic foam granules according to this utility model, a fixing rod is installed at the top of each base plate, and a discharge pipe is installed at the top of the fixing rod, wherein the discharge pipe is connected to the connecting pipe.

[0013] As a preferred embodiment of the negative pressure conveyor for plastic foam granules of this utility model, a universal wheel body is installed at each of the four corners of the bottom end of the base plate, and a braking mechanism is installed inside the universal wheel body.

[0014] The negative pressure conveyor for plastic foam granules of this utility model has the following beneficial effects:

[0015] This invention firstly involves the sealing block body and the sealing groove cooperating with each other, and the bolt rod body being threadedly connected to the second threaded hole and the first threaded hole respectively. At the same time, the first mounting frame and the second mounting frame cooperate with each other, so that when the first mounting frame is inserted into the second mounting frame, the bolt rod body rotates and slides inside the second threaded hole, causing the bolt rod body to slide and connect with the first threaded hole. This facilitates the installation and disassembly of the first mounting frame and the second mounting frame. In addition, the sealing block body and the sealing groove improve the sealing effect between the connecting hose and the straw body during installation.

[0016] This utility model first connects the internal thread body and the external thread body by rotating the mounting frame body, thereby driving the external thread body and the internal thread body to connect by rotating the mounting frame body, which facilitates the installation and disassembly of the mounting frame body and the suction tube body. This allows the filter screen body to filter large plastic foam particles, thereby improving the conveying effect of the negative pressure conveyor. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 This is a schematic diagram of the main structure of a negative pressure conveyor for plastic foam granules.

[0019] Figure 2 A schematic diagram of the main assembly structure of the connecting hose and suction tube of a negative pressure conveyor for plastic foam granules;

[0020] Figure 3 A schematic diagram of the disassembly structure of the connecting hose and suction tube of a negative pressure conveyor for plastic foam granules;

[0021] Figure 4 This is a schematic diagram of the internal structure of the connecting hose and suction tube of a negative pressure conveyor for plastic foam granules.

[0022] Figure 5 This is a schematic diagram of the main structure of the mounting frame for a negative pressure conveyor for plastic foam granules.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Base plate; 2. Fixing frame; 3. Flange body; 4. Cylinder body; 401. Conical barrel; 4011. Connecting pipe; 402. L-shaped pipe; 403. L-shaped support frame; 404. Negative pressure mechanism; 405. Connecting hose; 406. First mounting frame; 4061. Sealing groove; 4062. First threaded hole; 5. Negative pressure suction nozzle mechanism; 501. Suction tube body; 5011. External thread body; 502. Second mounting frame; 503. Second threaded hole; 504. Bolt rod body; 505. Sealing block body; 6. Filter assembly; 601. Mounting frame body; 602. Filter screen frame body; 603. Internal thread body; 7. Fixing rod; 701. Discharge pipe; 8. Caster wheel body. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "an 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 phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0028] Example 1: Refer to Figures 1-5This is the first embodiment of the present invention, which provides a negative pressure conveyor for plastic foam granules. It addresses the problems of most current plastic foam granule negative pressure conveyors on the market, such as the inability to disassemble and replace the negative pressure nozzle during operation, causing inconvenience and increasing the workload for operators. Furthermore, it cannot filter large plastic foam granules during transport, thus affecting the conveying effect. The embodiment includes a base plate 1, with a fixing frame 2 installed at the top of the base plate 1. A flange body 3 is installed at the top of the fixing frame 2, a cylindrical body 4 is installed at the top of the flange body 3, and a conical part is installed at the bottom of the flange body 3. The cylindrical body 401 has a conical barrel 401, and a connecting pipe 4011 is installed at the bottom of the conical barrel 401. An L-shaped support frame 403 is installed on the side wall of the cylindrical body 4, and a negative pressure mechanism 404 is installed at the top of the L-shaped support frame 403. An L-shaped pipe 402 connected to the top of the cylindrical body 4 is installed at the input end of the negative pressure mechanism 404. A connecting hose 405 is installed at the output end of the negative pressure mechanism 404, and a first mounting frame 406 is installed at the bottom end of the connecting hose 405. A negative pressure suction nozzle mechanism 5 is sleeved at the bottom end of the first mounting frame 406, and a filter assembly 6 is sleeved at the bottom end of the negative pressure suction nozzle mechanism 5. A sealing groove 4061 and a first threaded hole 4062 are respectively opened on the outer wall of the first mounting frame 406.

[0029] Combination Figure 1 , Figure 3 and Figure 4 In an embodiment of this utility model, the negative pressure suction nozzle mechanism 5 includes a straw body 501, a second mounting frame 502 is installed at the top of the straw body 501, and the second mounting frame 502 is sleeved on the outer wall of the first mounting frame 406. The side walls of the second mounting frame 502 are provided with second threaded holes 503, and the inner threads of the second threaded holes 503 are connected to bolt rod bodies 504. The bolt rod bodies 504 are threadedly connected to the first threaded holes 4062. The outer walls of the straw body 501 are all provided with external threaded bodies 5011, and the inner walls of the second mounting frames 502 are all provided with sealing block bodies 505, and the sealing block bodies 505 and the sealing grooves 4061 are engaged with each other.

[0030] The specific working principle is as follows: when it is necessary to install and disassemble the first mounting frame 406 and the second mounting frame 502, the sealing block body 505 and the sealing groove 4061 cooperate with each other, and the bolt rod body 504 is threadedly connected to the second threaded hole 503 and the first threaded hole 4062 respectively. At the same time, the first mounting frame 406 and the second mounting frame 502 cooperate with each other, so that when the first mounting frame 406 is inserted into the second mounting frame 502, the bolt rod body 504 rotates and slides inside the second threaded hole 503, so that the bolt rod body 504 slides to connect with the first threaded hole 4062. This facilitates the installation and disassembly of the first mounting frame 406 and the second mounting frame 502. At the same time, the sealing block body 505 and the sealing groove 4061 improve the sealing effect between the connecting hose 405 and the suction tube body 501 during installation.

[0031] Example 2: Refer to Figures 1-5 This is the first embodiment of the present invention, which provides a negative pressure conveyor for plastic foam granules. It addresses the problem that most negative pressure conveyors for plastic foam granules on the market cannot disassemble and replace their negative pressure nozzles during operation, causing inconvenience and increasing the workload for operators. Furthermore, it cannot filter large plastic foam granules during transport, thus affecting the conveying effect. The filter assembly 6 includes a mounting frame body 601. 601 is fitted onto the outer wall of the straw body 501. Inside the mounting frame body 601, a filter screen frame body 602 is installed. The inner wall of the mounting frame body 601 is fitted with an internal thread body 603, which is threaded to the external thread body 5011. The top of the base plate 1 is fitted with a fixing rod 7, and the top of the fixing rod 7 is fitted with a discharge pipe 701, which is connected to the connecting pipe 4011. The four corners of the bottom of the base plate 1 are fitted with universal wheel bodies 8, and the universal wheel bodies 8 are fitted with a braking mechanism inside.

[0032] The specific working principle is as follows: First, the internal thread body 603 is threadedly connected to the external thread body 5011. Then, by rotating the mounting frame body 601, the external thread body 5011 is threadedly connected to the internal thread body 603. This facilitates the installation and disassembly of the mounting frame body 601 and the suction tube body 501. Large plastic foam particles are then filtered through the filter screen frame body 602, thereby improving the conveying effect of the negative pressure conveyor.

[0033] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A negative pressure conveyor for plastic foam granules, characterized in that: include, A base plate (1) is provided, and a fixing frame (2) is installed at the top of the base plate (1). A flange body (3) is installed at the top of the fixing frame (2). A cylindrical body (4) is installed at the top of the flange body (3). A conical barrel (401) is installed at the bottom of the flange body (3). A connecting pipe (4011) is installed at the bottom of the conical barrel (401). An L-shaped support frame (403) is installed on the side wall of the cylindrical body (4). The top of the L-shaped support frame (403) is... A negative pressure machine mechanism (404) is installed. The input end of the negative pressure machine mechanism (404) is equipped with an L-shaped pipe (402) that communicates with the top of the cylindrical body (4). The output end of the negative pressure machine mechanism (404) is equipped with a connecting hose (405). The bottom end of the connecting hose (405) is equipped with a first mounting frame (406). The bottom end of the first mounting frame (406) is fitted with a negative pressure suction nozzle mechanism (5). The bottom end of the negative pressure suction nozzle mechanism (5) is fitted with a filter assembly (6).

2. The negative pressure conveyor for plastic foam granules as described in claim 1, characterized in that: The outer wall of the first mounting frame (406) is provided with a sealing groove (4061) and a first threaded hole (4062).

3. The negative pressure conveyor for plastic foam granules as described in claim 1, characterized in that: The negative pressure suction nozzle mechanism (5) includes a straw body (501), a second mounting frame (502) is installed at the top of the straw body (501), and the second mounting frame (502) is sleeved on the outer wall of the first mounting frame (406). The side walls of the second mounting frame (502) are provided with second threaded holes (503), and the inner thread of the second threaded hole (503) is connected to a bolt rod body (504). The bolt rod body (504) is threadedly connected to the first threaded hole (4062). The outer wall of the straw body (501) is provided with an external threaded body (5011).

4. The negative pressure conveyor for plastic foam granules as described in claim 3, characterized in that: The inner wall of the second mounting frame (502) is equipped with a sealing block body (505), and the sealing block body (505) and the sealing groove (4061) are engaged with each other.

5. The negative pressure conveyor for plastic foam granules as described in claim 1, characterized in that: The filter assembly (6) includes a mounting frame body (601), which is sleeved on the outer wall of the straw body (501). A filter screen frame body (602) is installed inside the mounting frame body (601). An internal thread body (603) is installed on the inner wall of the mounting frame body (601), and the internal thread body (603) is threadedly connected to the external thread body (5011).

6. The negative pressure conveyor for plastic foam granules as described in claim 1, characterized in that: The top of each base plate (1) is equipped with a fixing rod (7), and the top of the fixing rod (7) is equipped with a discharge pipe (701), which is connected to the connecting pipe (4011).

7. The negative pressure conveyor for plastic foam granules as described in claim 1, characterized in that: The base plate (1) has four corners at the bottom of each of the four corners equipped with a caster body (8), and the caster body (8) is equipped with a braking mechanism inside.