An extruder cutter for producing plastic foamed particles

Abstract

The utility model relates to the technical field of plastic foamed particle, especially is a plastic foamed particle production is with the pelletizer of plastic extruding machine, including device box, the top of device box installs the base, and the top of base installs screw extruder mechanism, the top of screw extruder mechanism installs the hopper, one end of screw extruder mechanism installs screw drive mechanism, the one end of screw extruder mechanism away from screw drive mechanism installs extrusion nozzle, the top of device box is set up with rectangular groove. The utility model first through the design of multiple first conveying roller barrel main part to the hot melt plastic of good plastic extrusion is discharged, simultaneously through starting drive motor to drive driving shaft and cutting tool main part to rotate, makes driving shaft rotation to drive cutting tool main part rotation to carry out the pelletizing of hot melt plastic, to make the pelletizing effect of plastic foamed particle better.

Description

Technical Field

[0001] This utility model relates to the field of plastic foam granules technology, and in particular to an extruder pelletizer for producing plastic foam granules. Background Technology

[0002] Foamed plastics are porous materials made through a foaming molding process. They mainly use resins such as polystyrene and polyurethane as the base material. The principle is to form a microporous structure inside the plastic through chemical, physical, or mechanical means. They are divided into two types: open-cell and closed-cell. Chemical foaming relies on the decomposition of foaming agents to generate gas, physical foaming is achieved through liquid vaporization, and mechanical foaming uses a gas stirring and mixing process. This material has low thermal conductivity, high cushioning, and sound insulation properties. Plastic foamed granules are porous materials made through a foaming process. They mainly use resins such as polystyrene and polyurethane as the base material. After processing, they form granular structures with a diameter of 2-7 mm. Plastic foamed granules need to be processed by extruders and pelletizers.

[0003] Most extruder pelletizers used in the production of plastic foam granules on the market cannot filter out large plastic foam granules during processing, which affects the subsequent use of the plastic foam granules. Therefore, there is a need for an extruder pelletizer for the production of plastic foam granules to meet people's 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 extrusion pelletizers used in the production of plastic foam granules on the market cannot filter out large plastic foam granules during processing, thus affecting the subsequent use of the plastic foam granules, there is a need for an extrusion pelletizer for the production of plastic foam granules to meet people's needs.

[0006] Therefore, the purpose of this utility model is to provide an extruder pelletizer for producing plastic foam granules.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a plastic extruder pelletizer for producing foamed plastic granules, comprising a device housing, a base mounted on the top of the device housing, a screw extruder mechanism mounted on the top of the base, a hopper mounted on the top of the screw extruder mechanism, a screw drive mechanism mounted on one end of the screw extruder mechanism, and an extrusion nozzle mounted on the end of the screw extruder mechanism away from the screw drive mechanism. A rectangular groove is formed at the top of the device housing, and a first conveying roller body is rotatably mounted on both sides of the inner sidewall of the rectangular groove. A first groove is formed on one sidewall of the device housing, and the first groove communicates with the rectangular groove. A second conveying roller body is rotatably mounted on both sidewalls of the inner sidewall of the first groove. A pelletizing assembly is mounted on one sidewall of the device housing, and a storage box is mounted on one sidewall of the device housing, with a filter assembly provided at the top of the storage box.

[0008] As a preferred embodiment of the extruder pelletizer for producing plastic foam granules according to this utility model, the top of each of the storage boxes is provided with a second groove, and a first through hole is provided on one side wall of the storage box, and the first through hole is connected to the second groove. A limit rod is provided inside the first through hole, and a connecting plate is installed at one end of the limit rod. A threaded hole is provided inside the connecting plate. A high-pressure spring body is sleeved on the outer wall of the limit rod, and the two ends of the high-pressure spring body are fixedly connected to the connecting plate and the side wall of the storage box, respectively.

[0009] As a preferred embodiment of the extruder pelletizer for producing plastic foam granules according to this utility model, wherein: the internal thread of the threaded hole is connected to a threaded rod, and one end of the threaded rod is rotatably connected to the side wall of the storage box through a bearing.

[0010] As a preferred embodiment of the extruder pelletizer for producing plastic foam granules according to this utility model, the filter assembly has mounting plates installed on the side walls at both ends, and a first vertical rod and a second vertical rod are respectively installed on the bottom of the mounting plates. The side wall of the second vertical rod has a limiting groove, and the bottom of the filter assembly has a filter screen frame body installed.

[0011] In a preferred embodiment of the extruder pelletizer for producing plastic foam granules according to this utility model, the first vertical rod and the second vertical rod respectively cooperate with the second groove.

[0012] As a preferred embodiment of the extruder pelletizer for producing plastic foam granules according to this utility model, the bottom end of the rectangular groove is equipped with a drain pipe that penetrates the side wall of the device box, and a solenoid valve is installed inside the drain pipe.

[0013] In a preferred embodiment of the extruder pelletizer for producing plastic foam granules according to this utility model, the limiting rod and the limiting groove are engaged with each other.

[0014] The extruder pelletizer for producing plastic foam granules of this utility model has the following beneficial effects:

[0015] This invention firstly uses a rectangular groove design to allow water to be injected into the groove. Simultaneously, it uses multiple sets of first conveying rollers to discharge the extruded hot melt plastic. At the same time, by starting a drive motor, the drive shaft and the cutting tool body are rotated. The rotation of the drive shaft drives the rotation of the cutting tool body to granulate the hot melt plastic, thereby improving the granulation effect of the plastic foam granules.

[0016] This invention firstly involves the filter assembly and the storage box working together, and connecting the filter assembly and the storage box via threaded holes. The rotation of the threaded rod causes the connecting plate to slide on the outer wall of the threaded rod, which in turn causes the limiting rod to slide inside the first through hole. Simultaneously, the second vertical rod is inserted into the second groove and engages with the limiting groove through the sliding of the limiting rod, thus facilitating the installation and disassembly of the filter assembly and the storage box. Furthermore, the filter frame body filters the plastic foam particles generated during pelletizing, thereby preventing large plastic foam particles from affecting the subsequent use effect. 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 an extruder pelletizer used for producing plastic foam granules.

[0019] Figure 2 A schematic diagram of the assembly structure of the storage box and filter components of an extruder pelletizer for producing plastic foam granules.

[0020] Figure 3 A schematic diagram of the disassembly structure of the storage box and filter assembly of an extruder pelletizer for producing plastic foam granules.

[0021] Figure 4 A partial cross-sectional view of the storage box and filter assembly of an extruder pelletizer for producing plastic foam granules.

[0022] Figure 5 This is a schematic diagram of the pelletizing component of an extruder pelletizer used for producing plastic foam granules.

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

[0024] 1. Device housing; 2. Base; 3. Screw extruder mechanism; 301. Feed hopper; 302. Screw drive mechanism; 303. Extrusion nozzle; 4. Rectangular groove; 401. First conveying roller body; 402. First groove; 403. Second conveying roller body; 404. Drain pipe; 5. Pelletizing assembly; 501. Drive motor; 502. Drive shaft; 503. Cutting blade body; 6. Storage box; 601. Second groove; 602. First through hole; 603. Limiting rod; 604. High-pressure spring body; 605. Connecting plate; 6051. Threaded hole; 606. Threaded rod; 7. Filter assembly; 701. Mounting plate; 702. First vertical rod; 703. Second vertical rod; 7031. Limiting groove; 704. Filter screen frame 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 pelletizer for extrusion machines used in the production of plastic foam granules. It addresses the problem that most extrusion machines used in the plastic foam granule production market cannot filter out large plastic foam granules during processing, thus affecting the subsequent use of the plastic foam granules. The pelletizer includes a device housing 1, a base 2 mounted on the top of the housing 1, a screw extruder mechanism 3 mounted on the top of the base 2, a hopper 301 mounted on the top of the screw extruder mechanism 3, and a screw drive mechanism 30 mounted on one end of the screw extruder mechanism 3. 2. An extrusion nozzle 303 is installed at one end of the screw extruder mechanism 3 away from the screw drive mechanism 302. A rectangular groove 4 is opened at the top of the device housing 1, and a first conveying roller body 401 is rotatably installed on both sides of the inner sidewall of the rectangular groove 4. A first groove 402 is opened on one sidewall of the device housing 1, and the first groove 402 is connected to the rectangular groove 4. A second conveying roller body 403 is rotatably installed on both sides of the inner sidewall of the first groove 402. A pelletizing assembly 5 is installed on one sidewall of the device housing 1. A storage box 6 is installed on one sidewall of the device housing 1, and a filter assembly 7 is provided at the top of the storage box 6.

[0029] Combination Figure 1 , Figure 3 and Figure 5 In an embodiment of this utility model, the pelletizing assembly 5 includes a drive motor 501, which is fixedly installed on the side wall of one end of the device housing 1. The output end of the drive motor 501 is equipped with a drive shaft 502, and the outer wall of the drive shaft 502 is equipped with a cutting tool body 503.

[0030] The specific working principle is as follows: First, the rectangular groove 4 is designed to be filled with water. At the same time, the extruded hot melt plastic is discharged through the design of multiple sets of first conveying roller bodies 401. Simultaneously, the drive motor 501 is started to drive the drive shaft 502 and the cutting tool body 503 to rotate. The rotation of the drive shaft 502 drives the rotation of the cutting tool body 503 to granulate the hot melt plastic, thereby improving the granulation effect of the plastic foam granules.

[0031] Example 2: Refer to Figures 1-5This is the first embodiment of the present invention. This embodiment provides a pelletizer for extrusion machines used in the production of plastic foam granules. It can solve the problem that most extrusion machines used in the production of plastic foam granules on the market cannot filter the large plastic foam granules cut off during the processing of plastic foam granules, thus affecting the subsequent use effect of the plastic foam granules. The top of the storage box 6 is provided with a second groove 601. A first through hole 602 is provided on one side wall of the storage box 6, and the first through hole 602 is connected to the second groove 601. A limit rod 603 is provided inside the first through hole 602, and a connecting plate 605 is installed at one end of the limit rod 603. A threaded hole 6051 is provided inside the connecting plate 605. A high-pressure spring body 604 is sleeved on the outer wall of the limit rod 603, and the two ends of the high-pressure spring body 604 are fixedly connected to the connecting plate 605 and the side wall of the storage box 6, respectively. The limit rod 603 and the limit groove 7031 are engaged with each other.

[0032] Combination Figure 1 , Figure 2 and Figure 3 In an embodiment of this utility model, a threaded rod 606 is threadedly connected to the inside of the threaded hole 6051, and one end of the threaded rod 606 is rotatably connected to the side wall of the storage box 6 through a bearing.

[0033] Combination Figure 1 , Figure 3 and Figure 4 In this embodiment of the present invention, mounting plates 701 are installed on the side walls at both ends of the filter assembly 7, and a first vertical rod 702 and a second vertical rod 703 are respectively installed on the bottom end of the mounting plates 701. A limiting groove 7031 is opened on the side wall of the second vertical rod 703. A filter screen frame body 704 is installed at the bottom end of the filter assembly 7. The first vertical rod 702 and the second vertical rod 703 cooperate with the second groove 601 respectively. A drain pipe 404 penetrating the side wall of the device box 1 is installed at the bottom end of the rectangular groove 4, and a solenoid valve is installed inside the drain pipe 404.

[0034] The specific working principle is as follows: First, the filter assembly 7 and the storage box 6 cooperate with each other and are threadedly connected to the connecting plate 605 through the threaded hole 6051. The rotation of the threaded rod 606 drives the connecting plate 605 to slide on the outer wall of the threaded rod 606, which facilitates the sliding of the connecting plate 605 to drive the limiting rod 603 to slide inside the first through hole 602. At the same time, the second vertical rod 703 is inserted into the second groove 601 and engages with the limiting groove 7031 through the sliding of the limiting rod 603, which facilitates the installation and disassembly of the filter assembly 7 and the storage box 6. Meanwhile, the filter screen frame body 704 filters the plastic foam particles generated by pelletizing, thereby avoiding large plastic foam particles generated by pelletizing from affecting the subsequent use effect.

[0035] 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 pelletizer for producing plastic foam granules, characterized in that: include, The device housing (1) has a base (2) installed at its top, and a screw extruder mechanism (3) is installed at the top of the base (2). A feed hopper (301) is installed at the top of the screw extruder mechanism (3). A screw drive mechanism (302) is installed at one end of the screw extruder mechanism (3). An extrusion nozzle (303) is installed at the end of the screw extruder mechanism (3) away from the screw drive mechanism (302). A rectangular groove (4) is opened at the top of the device housing (1), and the interior of the rectangular groove (4) is... The first conveying roller body (401) is rotatably installed on both sides of the side wall. The first groove (402) is opened on the side wall of one end of the device box (1), and the first groove (402) is connected to the rectangular groove (4). The second conveying roller body (403) is rotatably installed on the side wall of both sides inside the first groove (402). The pelletizing component (5) is installed on the side wall of one end of the device box (1). The storage box (6) is installed on the side wall of one end of the device box (1), and the top of the storage box (6) is provided with a filter component (7).

2. The extruder pelletizer for producing plastic foam granules as described in claim 1, characterized in that: The pelletizing assembly (5) includes a drive motor (501), which is fixedly installed on the side wall of one end of the device housing (1). The output end of the drive motor (501) is equipped with a drive shaft (502), and the outer wall of the drive shaft (502) is equipped with a cutting tool body (503).

3. The extruder pelletizer for producing plastic foam granules as described in claim 1, characterized in that: The top of each storage box (6) is provided with a second groove (601). A first through hole (602) is provided on one side wall of the storage box (6), and the first through hole (602) is connected to the second groove (601). A limit rod (603) is provided inside the first through hole (602), and a connecting plate (605) is installed at one end of the limit rod (603). A threaded hole (6051) is provided inside the connecting plate (605). A high-pressure spring body (604) is sleeved on the outer wall of the limit rod (603), and the two ends of the high-pressure spring body (604) are fixedly connected to the connecting plate (605) and the side wall of the storage box (6) respectively.

4. The extruder pelletizer for producing plastic foam granules as described in claim 3, characterized in that: The threaded hole (6051) is internally threaded with a threaded rod (606), and one end of the threaded rod (606) is rotatably connected to the side wall of the storage box (6) through a bearing.

5. The extruder pelletizer for producing plastic foam granules as described in claim 1, characterized in that: The filter assembly (7) has mounting plates (701) installed on the side walls at both ends, and the bottom of the mounting plates (701) is respectively equipped with a first vertical rod (702) and a second vertical rod (703). The side wall of the second vertical rod (703) has a limiting groove (7031), and the bottom of the filter assembly (7) is equipped with a filter screen frame body (704).

6. The extruder pelletizer for producing plastic foam granules as described in claim 5, characterized in that: The first vertical rod (702) and the second vertical rod (703) respectively cooperate with the second groove (601).

7. The extruder pelletizer for producing plastic foam granules as described in claim 1, characterized in that: The bottom end of the rectangular groove (4) is equipped with a drain pipe (404) that penetrates the side wall of the device box (1), and a solenoid valve is installed inside the drain pipe (404).

8. The extruder pelletizer for producing plastic foam granules as described in claim 3, characterized in that: The limiting rod (603) and the limiting groove (7031) engage with each other.

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