A polystyrene preparation cutting machine

Abstract

The utility model discloses a polystyrene preparation is with cutting machine, including work table, be equipped with support frame on the work table, be equipped with cutting machine on the support frame, cutting machine lower extreme is equipped with cutting knife, cutting knife sets up multiple, cutting machine lower extreme is equipped with support frame, be equipped with the knife rest of sliding connection in the support frame, support frame both ends are equipped with drive push rod, the knife rest side end is equipped with the pressure slide block, drive push rod and pressure slide block all set up multiple, set up at different height, and mutually cooperate, support frame lower extreme is equipped with the limit frame, cutting knife cooperates with the limit frame, be equipped with the connecting slide bar on the limit frame, support frame outer end is equipped with the connecting block, the connecting slide bar is connected with the connecting block slidingly, be equipped with the pressure spring on the support frame, the pressure spring cooperates with the connecting block, and this equipment is convenient to adjust the cutter spacing, adapts to different cutting demand, and the cutting quality is higher.

Description

Technical Field

[0001] This utility model relates to the field of polystyrene production technology, and more specifically, it relates to a pelletizer for polystyrene preparation. Background Technology

[0002] Polystyrene is a polymer synthesized from styrene monomers through a free radical addition polymerization reaction. It is a colorless and odorless plastic material commonly used to make disposable containers and has a large market demand.

[0003] In the production of polystyrene raw materials, polystyrene is generally supported in granular form for easy transportation and measurement during use. A pelletizer is used to cut the polystyrene during this process. However, common pelletizers have relatively simple structures with fixed blades. In actual pelletizing, different sizes of pellets may be needed depending on the requirements. Simple pelletizers cannot automatically adjust these sizes, requiring workers to stop the machine and manually adjust the blades, which is cumbersome, makes it difficult to guarantee accuracy, and results in low efficiency. Furthermore, during pelletizing, the lumps of polystyrene material are placed inside the pelletizer. The lack of a fixed structure in simple pelletizers can cause the polystyrene material to shake when the blades come into contact with it, affecting pellet quality. Additionally, after cooling, polystyrene at room temperature is relatively hard. When it comes into contact with the blades, the surface of the material may crack due to pressure, affecting pellet quality and increasing the risk of blade wear, thus shortening the equipment's lifespan. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the problems existing in the prior art, this utility model provides a pelletizer for polystyrene preparation, thereby solving the technical problems mentioned in the background art, such as the simple structure and insufficient performance of pelletizers.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a pelletizer for polystyrene preparation, comprising a worktable, a support frame on the worktable, a cutter on the support frame, a cutting blade at the lower end of the cutter, multiple sets of the cutting blade, a support frame at the lower end of the cutter, a blade holder slidably connected inside the support frame, the cutting blade being mounted on the blade holder, drive push rods at both ends of the support frame, and a pressure slider at the side end of the blade holder. Multiple sets of drive push rods and pressure sliders are provided, positioned at different heights and cooperating with each other.

[0008] The lower end of the support frame is provided with a limiting frame, the cutting blade cooperates with the limiting frame, the limiting frame is provided with a connecting slide rod, the outer end of the support frame is provided with a connecting block, the connecting slide rod is slidably connected with the connecting block, the support frame is provided with a pressure spring, and the pressure spring cooperates with the connecting block.

[0009] The present invention is further configured such that a fan is provided at one end of the workbench, a heating box is provided at one end of the fan, an electric heating wire is provided inside the heating box, one end of the heating box is connected to the fan, and the other end is provided with an air guide pipe, the air guide pipe cooperates with the support frame to increase the temperature of the cutting tool and improve the cutting quality.

[0010] The present invention is further configured such that the air guide pipe is provided with a flow guide branch pipe, and the inner ends of the limiting frame are provided with a diversion pipe. The flow guide branch pipe is connected to the diversion pipe, and the diversion pipe is provided with an air outlet. Multiple air outlets are provided and are evenly distributed on the diversion pipe to make the airflow more uniform.

[0011] The present invention is further configured such that a first flow guide plate is provided on the upper inner wall of the heating box, and a second flow guide plate is provided on the lower inner wall of the heating box. Multiple sets of the first and second flow guide plates are provided and arranged in an alternating manner to improve the airflow heating efficiency.

[0012] The present invention is further configured such that a sliding groove is provided on the side end of the support frame, and multiple sets of sliding grooves are arranged at equal intervals. The pressure-bearing slider slides in cooperation with the sliding groove to stabilize the tool holder support.

[0013] The present invention is further configured such that a support slide rod is provided on the inner side of the support frame, and a sliding opening is provided on the tool holder, the sliding opening slidingly engaging with the support slide rod to stabilize the movement of the tool holder.

[0014] The present invention is further configured such that a limiting head is provided at the upper end of the connecting slide rod, and the limiting head cooperates with the connecting block to make the connecting slide rod and the connecting block cooperate stably.

[0015] The present invention is further configured such that a conveyor belt is provided on the workbench, and the conveyor belt cooperates with the cutting machine to facilitate the material transportation and cooperation with the pelletizing equipment.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a pelletizer for polystyrene preparation, which has the following beneficial effects:

[0018] 1. The cutting machine, cutting blade, and blade holder work together to mount the cutting blade on the blade holder. The blade holder works with the cutting machine through the support frame to perform cutting. Multiple sets of drive push rods and pressure sliders work together to control the movement of different blade holders with the cutting blades, and adjust the spacing of each cutting blade to meet various preparation needs. This spacing adjustment structure is more convenient, does not require stopping the machine, and improves work efficiency.

[0019] 2. By cooperating with the limiting frame and the support frame, a pressure structure is provided. By cooperating with the connecting slide rod and the connecting block, the limiting frame and the support frame slide together. When the support frame descends with the cutting blade to cut pellets, the limiting frame contacts the material first and, by cooperating with the pressure spring, provides pressure to the material, keeping it stable during pelleting, avoiding shaking, and improving pelleting quality.

[0020] 3. Airflow is provided by a fan, and heating capacity is provided by a heating box and electric heating wire to heat the airflow. The hot airflow is directed to the cutting blade through the air duct to heat the blade surface, making the cutting blade surface warm. The temperature softens the polystyrene material, improving the efficiency of cutting polystyrene material and preventing the material from breaking. Attached Figure Description

[0021] Figure 1 This is a front view of a pelletizer for polystyrene preparation according to the present invention.

[0022] Figure 2 This is a schematic diagram of the structure of the support frame after disassembly and its cooperation with the tool holder and the limiting frame in this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the tool holder after disassembly and its cooperation with the drive push rod and cutting blade in this utility model;

[0024] Figure 4 This is a schematic diagram of the disassembled and assembled structure of the limiting frame and the diverter in this utility model;

[0025] Figure 5 This is a cross-sectional view of the internal structure of the heating box and the electric heating wire in this utility model.

[0026] In the diagram: 1. Workbench; 2. Support frame; 3. Cutting machine; 4. Cutting blade; 5. Support frame; 6. Blade holder; 7. Drive push rod; 8. Pressure slider; 9. Limiting frame; 10. Connecting slide rod; 11. Connecting block; 12. Pressure spring; 13. Fan; 14. Heating box; 15. Electric heating wire; 16. Air guide duct; 17. Guide branch pipe; 18. Diverter pipe; 19. Air outlet; 20. First guide plate; 21. Second guide plate; 22. Sliding groove; 23. Support slide rod; 24. Sliding port; 25. Limiting head; 26. Conveyor belt. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] Please see Figure 1-5 A pelletizer for polystyrene preparation includes a workbench 1, a support frame 2 on the workbench 1, a cutter 3 on the support frame 2, a cutting blade 4 at the lower end of the cutter 3, multiple sets of cutting blades 4, a support frame 5 at the lower end of the cutter 3, a blade holder 6 slidably connected inside the support frame 5, the cutting blades 4 are mounted on the blade holder 6, drive push rods 7 at both ends of the support frame 5, and pressure sliders 8 at the side ends of the blade holder 6. Multiple sets of drive push rods 7 and pressure sliders 8 are provided, and they are set at different heights and cooperate with each other.

[0031] The lower end of the support frame 5 is provided with a limiting frame 9, the cutting blade 4 cooperates with the limiting frame 9, the limiting frame 9 is provided with a connecting slide rod 10, the outer end of the support frame 5 is provided with a connecting block 11, the connecting slide rod 10 and the connecting block 11 are slidably connected, the support frame 5 is provided with a pressure spring 12, the pressure spring 12 cooperates with the connecting block 11.

[0032] In this embodiment, the workbench 1 and support frame 2 cooperate to provide a support structure, the support frame 5 provides support capacity, and the cutter 4 is supported in conjunction with the cutter holder 6. The cutting machine 3 provides power to move the cutter 4 to perform pelletizing. When it is necessary to adjust the spacing of the cutter 4, it is not necessary to stop the machine and disassemble it. Instead, the drive push rod 7 is directly controlled to make each drive push rod 7 work independently. By controlling each drive push rod 7 to extend a specific distance, pressure is applied to the corresponding pressure slider 8. The pressure slider 8 moves the cutter holder 6, so that the corresponding cutter holder 6 moves the cutter 4 to the appropriate position, thereby making the spacing of the cutter 4 meet the production requirements.

[0033] More specifically, when the cutting machine 3 moves with the support frame 5, the connecting slide rod 10 and the connecting block 11 will cause the limiting frame 9 to descend together. The limiting frame 9 is located below the cutting blade 4 and will first contact the cutting blade 4 and the polystyrene material. As the support frame 5 descends, before the cutting blade 4 contacts the polystyrene, the limiting frame 9 will slide towards the support frame 5 through the cooperation of the connecting slide rod 10 and the connecting block 11, so that the pressure spring 12 is compressed and provides pressure. This allows the limiting frame 9 to apply pressure to the polystyrene, pressing the polystyrene down when the cutting blade 4 cuts the polystyrene, preventing it from shaking and ensuring stable cutting.

[0034] Please see Figure 1 and Figure 5 As one embodiment of cutting heating: a fan 13 is provided at one end of the workbench 1, a heating box 14 is provided at one end of the fan 13, an electric heating wire 15 is provided in the heating box 14, one end of the heating box 14 is connected to the fan 13, and the other end is provided with an air guide pipe 16, which is matched with the support frame 5.

[0035] Specifically, the blower 13 provides negative pressure, causing external gas to flow into the heating box 14. The electric heating wire 15 provides heating, heating the airflow. The airflow is then guided by the air duct 16 to the cutting blade 4, heating the cutting blade 4 and raising the surface temperature of the cutting blade 4 for more efficient cutting.

[0036] Please see Figure 1 and Figure 4 As a further implementation of the air duct: the air duct 16 is provided with a flow guide branch pipe 17, and the inner ends of the limiting frame 9 are provided with a diversion pipe 18. The flow guide branch pipe 17 is connected to the diversion pipe 18. The diversion pipe 18 is provided with an air outlet 19. Multiple air outlets 19 are provided and are evenly distributed inside the diversion pipe 18.

[0037] Specifically, the airflow brought by the air duct 16 is guided by the guide branch pipe 17, so that the airflow is divided into two streams and enters the split pipe 18. The airflow is split again by the split pipe 18 and then sprayed out from the air outlet 19.

[0038] Please see Figure 5 As a further embodiment of the heating box: the upper inner wall of the heating box 14 is provided with a first diversion plate 20, and the lower inner wall of the heating box 14 is provided with a second diversion plate 21. Multiple sets of the first diversion plate 20 and the second diversion plate 21 are provided and are arranged in an alternating manner.

[0039] Specifically, the airflow is guided by the cooperation of the first guide plate 20 and the second guide plate 21, making the airflow flow in a tortuous manner, increasing the contact time between the gas and the electric heating wire 15 in the heating box 14, thereby improving heating efficiency.

[0040] Please see Figures 1-3 As a further embodiment of the support frame: a sliding groove 22 is provided on the side end of the support frame 5, and multiple sets of sliding grooves 22 are arranged at equal intervals, and the pressure slider 8 slides in cooperation with the sliding groove 22.

[0041] Specifically, the sliding groove 22 provides space to support the stable movement of the pressure-bearing slider 8.

[0042] Please see Figure 2 and Figure 3 As a further embodiment of the support frame: a support slide rod 23 is provided on the inner side of the support frame 5, and a sliding opening 24 is provided on the tool holder 6, which slides in cooperation with the support slide rod 23.

[0043] Specifically, the support slide 23 cooperates with the sliding port 24 to provide support and guidance, thereby making the movement of the tool holder 6 more stable.

[0044] Please see Figure 2 As a further embodiment of the connecting slide rod: the upper end of the connecting slide rod 10 is provided with a limiting head 25, which cooperates with the connecting block 11.

[0045] Specifically, the limiting head 25 provides a limiting structure, and when the connecting slide rod 10 moves downward, the connecting block 11 supports the limiting head 25, thereby providing a limiting structure to prevent the connecting slide rod 10 from separating from the connecting block 11.

[0046] Please see Figure 1 As a further implementation of the workbench: the workbench 1 is provided with a conveyor belt 26, which cooperates with the cutting machine 3.

[0047] Specifically, when the equipment is working, it is supported by the workbench 1, which allows the conveyor belt 26 to carry polystyrene material to move, facilitating cutting and granulation.

[0048] In summary, during the use or operation of the overall equipment:

[0049] When using the equipment, connect it to an external power source. The workbench 1 and support frame 2 work together to provide a support structure. The polystyrene material to be processed is placed on the conveyor belt 26, which carries the polystyrene material and moves it to facilitate pelletizing with the cutting equipment. The support frame 5 provides support and works with the blade holder 6 to support the cutting blades 4. The cutting machine 3 provides power to move the cutting blades 4 for pelletizing. In addition, the spacing of the cutting blades 4 can be adjusted according to production needs. The drive push rods 7 are controlled, and each drive push rod 7 works with the corresponding pressure slider 8 to push it a corresponding distance. The pressure slider 8 moves stably under the support of the sliding groove 22, moving the corresponding blade holder 6. The support slide rod 23 works with the sliding port 24 to support and guide the movement of the blade holder 6, making the movement of the blade holder 6 stable. Thus, the movement of the blade holder 6 moves multiple sets of cutting blades 4 to the appropriate position to form the appropriate spacing to meet the production and processing needs.

[0050] During pelletizing, as the cutting machine 3 moves with the support frame 5, the connecting slide rod 10 and the connecting block 11 work together to lower the limiting frame 9. The limiting head 25 provides a limiting structure, and the connecting block 11 supports the limiting head 25, thus preventing the connecting slide rod 10 from separating from the connecting block 11. The limiting frame 9 is located below the cutting blade 4. As the support frame 5 descends, it first contacts the cutting blade 4 and the polystyrene material. Before the cutting blade 4 contacts the polystyrene, the limiting frame 9 slides towards the support frame 5 through the connection of the connecting slide rod 10 and the connecting block 11, compressing the pressure spring 12 and applying pressure. This pressure allows the limiting frame 9 to hold the polystyrene in place while the cutting blade 4 cuts it, preventing wobbling and ensuring stable cutting. Simultaneously, before pelletizing, the fan 13 can be used for ventilation. The system provides negative pressure, allowing external gas to flow into the heating chamber 14. Heating is achieved through the electric heating wire 15, which heats the airflow. The first and second guide plates 20 and 21 work together to guide the airflow, causing it to flow in a tortuous manner and increasing the contact time between the gas and the electric heating wire 15 within the heating chamber 14, thus improving heating efficiency. The hot airflow is guided towards the pelletizing direction by the air duct 16. The airflow from the air duct 16 is further guided by the guide branch pipe 17, splitting the airflow into two streams that enter the split pipe 18. The split pipe 18 then further divides the airflow before it is ejected from the outlet 19 and blown towards the cutting blade 4, heating it and increasing its surface temperature for more efficient cutting. To prevent excessive influence of the hot airflow on the polystyrene material, heating can be performed before pelletizing, and the hot airflow can be stopped during cutting.

[0051] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pelletizer for polystyrene preparation, comprising a worktable (1), a support frame (2) on the worktable (1), a cutter (3) on the support frame (2), and a cutting blade (4) at the lower end of the cutter (3), characterized in that: The cutting blade (4) is provided in multiple sets. The lower end of the cutting machine (3) is provided with a support frame (5). A blade holder (6) is slidably connected inside the support frame (5). The cutting blade (4) is set on the blade holder (6). The two ends of the support frame (5) are provided with driving push rods (7). The side end of the blade holder (6) is provided with a pressure slider (8). The driving push rods (7) and the pressure slider (8) are provided in multiple sets and are set at different heights and cooperate with each other. The support frame (5) is provided with a limiting frame (9) at its lower end. The cutting blade (4) cooperates with the limiting frame (9). The limiting frame (9) is provided with a connecting slide rod (10). The support frame (5) is provided with a connecting block (11) at its outer end. The connecting slide rod (10) and the connecting block (11) are slidably connected. The support frame (5) is provided with a pressure spring (12). The pressure spring (12) cooperates with the connecting block (11).

2. The pelletizer for polystyrene preparation according to claim 1, characterized in that: The workbench (1) is equipped with a fan (13) at one end, and a heating box (14) is provided at one end of the fan (13). An electric heating wire (15) is provided inside the heating box (14). One end of the heating box (14) is connected to the fan (13), and the other end is equipped with a guide pipe (16). The guide pipe (16) cooperates with the support frame (5).

3. A pelletizer for polystyrene preparation according to claim 2, characterized in that: The air duct (16) is provided with a flow branch pipe (17), and the inner ends of the limiting frame (9) are provided with a diversion pipe (18). The flow branch pipe (17) is connected to the diversion pipe (18). The diversion pipe (18) is provided with an air outlet (19). There are multiple air outlets (19), which are evenly arranged on the diversion pipe (18).

4. A pelletizer for polystyrene preparation according to claim 2, characterized in that: The heating box (14) has a first diversion plate (20) on its upper inner wall and a second diversion plate (21) on its lower inner wall. The first diversion plate (20) and the second diversion plate (21) are provided in multiple sets and are arranged in an alternating manner.

5. A pelletizer for polystyrene preparation according to claim 4, characterized in that: The support frame (5) has a sliding groove (22) on its side end, and multiple sets of sliding grooves (22) are arranged at equal intervals. The pressure slider (8) slides in cooperation with the sliding groove (22).

6. A pelletizer for polystyrene preparation according to claim 5, characterized in that: The inner side of the support frame (5) is provided with a support slide rod (23), and the tool holder (6) is provided with a sliding opening (24), which is in sliding cooperation with the support slide rod (23).

7. A pelletizer for polystyrene preparation according to claim 1, characterized in that: The upper end of the connecting slide rod (10) is provided with a limiting head (25), which cooperates with the connecting block (11).

8. A pelletizer for polystyrene preparation according to claim 1, characterized in that: The workbench (1) is equipped with a conveyor belt (26), which is used in conjunction with the cutting machine (3).

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