Extrusion cooling structure for pp particle processing

Abstract

The utility model discloses an extrusion cooling structure for processing PP (polypropylene) particles, which comprises a box body, notches are formed in the wall surfaces of the front end and the rear end of the box body, and a spray cooling structure is mounted in the box body; the utility model relates to the technical field of plastic extruders, an extruded product penetrates through a cavity formed by a side C-shaped pipe and a middle C-shaped pipe, cooling water at the bottom of a box body is sprayed out from a spray head through the work of a submersible pump, the extruded product is cooled and shaped, and the extruded product is cooled and shaped through the extension and retraction of first electric push rods on two sides. The width size of a cavity formed by the side C-shaped pipes and the middle C-shaped pipe can be adjusted, so that extruded products with different width sizes can pass through the cavity, the distance between the spray head and the extruded products can be adjusted until now, the cooling effect is guaranteed, and the cooling quality is improved; and when the size width of the basic product is small, and the adjusting side C-shaped pipe and the middle C-shaped pipe have a staggered part, the valve above the spray head which is not aligned with the extruded product can be closed, so that water resources are saved.

Description

Technical Field

[0001] This utility model relates to the field of plastic extruder technology, specifically to an extrusion cooling structure for PP granule processing. Background Technology

[0002] In the extrusion process of polypropylene (PP) granules, after the high-temperature molten material is extruded through the extruder die, it needs to be rapidly cooled and shaped using a cooling structure to avoid product deformation, shrinkage, or uneven crystallization. Traditional cooling methods often use open water tank immersion or fixed spray devices. The spray position is fixed, and the spray range cannot be adjusted according to the product size. This makes it unsuitable for extruded products of different widths or cross-sections, resulting in uneven cooling and low cooling efficiency.

[0003] While existing technologies may already offer solutions to the aforementioned problems, this case aims to provide an alternative or replacement technical solution. Utility Model Content

[0004] To solve the problems mentioned in the background art, the present invention is achieved through the following technical solution: an extrusion cooling structure for PP particle processing, including a box body, with notches on both the front and rear end walls of the box body, a spray cooling structure installed inside the box body, and support structures provided inside the box body and on both the front and rear sides of the spray cooling structure.

[0005] The spray cooling structure includes two first electric push rods, which are symmetrically installed on the left and right walls inside the housing. The telescopic ends of the two first electric push rods are respectively equipped with a first suction pipe and a second suction pipe. A central C-shaped pipe is installed at one end of the first suction pipe, and a water distribution pipe is installed at one end of the second suction pipe. Branch pipes are installed on the water distribution pipes and on both sides of the central C-shaped pipe. A side C-shaped pipe is installed at one end of each branch pipe. Multiple valves are installed on the central C-shaped pipe and the side C-shaped pipes. A nozzle is installed at one end of each valve. A flexible pipe is installed at one end of both the first and second suction pipes, and a submersible pump is installed at one end of the flexible pipe.

[0006] Preferably, the support structure includes two second electric push rods, which are installed on the inner bottom surface of the housing. Each second electric push rod has a screw installed at its telescopic end. A column is movably fitted on the screw, and a roller is movably fitted on the column. A nut is movably fitted on the screw via a thread, and the nut is movably fitted against the column.

[0007] Preferably, both the first suction tube and the second suction tube are equipped with a fixing frame, the telescopic end of the first electric push rod is installed on the fixing frame, a guide rod is movably inserted into the fixing frame, and the guide rod is installed on the inner side wall of the box.

[0008] Preferably, the box body is provided with a box lid.

[0009] Preferably, the housing is equipped with a control panel.

[0010] Preferably, a water inlet pipe is inserted into the side wall of the box.

[0011] Beneficial effects

[0012] This utility model provides an extrusion cooling structure for PP granule processing. Compared with the prior art, it has the following advantages: the extruded product passes through the cavity formed by the side C-tube and the middle C-tube. The submersible pump operates, causing cooling water at the bottom of the box to be sprayed out from the nozzle to cool and shape the extruded product. The width of the cavity formed by the side C-tube and the middle C-tube can be adjusted by extending and retracting the first electric push rods on both sides, so that extruded products of different widths can pass through it. The distance between the nozzle and the extruded product can be adjusted to ensure the cooling effect and improve the cooling quality. When the width of the base product is small, resulting in an overlap between the side C-tube and the middle C-tube, the valve above the nozzle that is not aligned with the extruded product can be closed to save water resources. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure of an extrusion cooling structure for processing PP granules according to this utility model.

[0014] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the box of the extrusion cooling structure for PP particle processing according to this utility model.

[0015] Figure 3 This is a three-dimensional structural diagram of the spray cooling structure and support structure of the extrusion cooling structure for PP particle processing according to this utility model.

[0016] In the diagram: 1. Box body, 2. Opening, 3. First electric push rod, 4. First suction pipe, 5. Second suction pipe, 6. Central C-shaped pipe, 7. Water distribution pipe, 8. Branch pipe, 9. Side C-shaped pipe, 10. Valve, 11. Nozzle, 12. Flexible pipe, 13. Submersible pump, 14. Second electric push rod, 15. Screw, 16. Column, 17. Roller, 18. Nut, 19. Fixing bracket, 20. Guide rod, 21. Box cover, 22. Control panel, 23. Water inlet pipe. Detailed Implementation

[0017] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] Example: Those skilled in the art shall connect all electrical components and their compatible power supplies in this case with wires, and select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence shall refer to the working principle described below, in which the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, without explaining the electrical control.

[0019] Please see Figure 1-3 An extrusion cooling structure for PP particle processing includes a box body 1, with openings 2 on both the front and rear end walls of the box body 1, a spray cooling structure installed inside the box body 1, and support structures provided inside the box body 1 and on both the front and rear sides of the spray cooling structure.

[0020] It should be noted that the device is installed at the discharge end of the extruder and connected to the power supply. The product extruded by the extruder passes through the notch 2 and through the box 1. The box 1 is used to store cooling water. The cooling water in the box 1 is sprayed onto the extruded product through the spray cooling structure to shape the extruded product. The support structure is used to support the extruded product and prevent the base product from bending to a large extent.

[0021] Specifically, the spray cooling structure includes two first electric push rods 3, which are symmetrically installed on the left and right walls inside the housing 1. The telescopic ends of the two first electric push rods 3 are respectively equipped with a first suction pipe 4 and a second suction pipe 5. A central C-shaped pipe 6 is installed at one end of the first suction pipe 4, and a water distribution pipe 7 is installed at one end of the second suction pipe 5. Branch pipes 8 are installed on the water distribution pipe 7 and on both the front and rear sides of the central C-shaped pipe 6. A side C-shaped pipe 9 is installed at one end of the branch pipe 8. Multiple valves 10 are installed on the central C-shaped pipe 6 and the side C-shaped pipe 9. A nozzle 11 is installed at one end of each valve 10. A flexible pipe 12 is installed at one end of the first suction pipe 4 and the second suction pipe 5. A submersible pump 13 is installed at one end of the flexible pipe 12.

[0022] It should be noted that the extruded product passes through the cavity formed by the side C-shaped tube 9 and the middle C-shaped tube 6. The submersible pump 13 works to make the cooling water at the bottom of the box 1 enter the middle C-shaped tube 6 through the flexible tube 12 and the first suction tube 4, and enter the branch tube 8 through the second suction tube 5 and the branch pipe 8 of the water distribution pipe 7. By opening the valve 10, the cooling water is sprayed out from the nozzle 11 to cool and shape the extruded product.

[0023] The width of the cavity formed by the side C-tube 9 and the middle C-tube 6 can be adjusted by extending and retracting the first electric push rods 3 on both sides, so that extruded products of different widths can pass through it. The distance between the nozzle 11 and the extruded product can be adjusted to ensure the cooling effect and improve the cooling quality.

[0024] When the width of the base product is small, resulting in an overlap between the adjustment side C-tube 9 and the middle C-tube 6, the valve 10 above the nozzle 11 that is not aligned with the extruded product can be closed to save water resources.

[0025] Specifically, the support structure includes two second electric push rods 14, which are installed on the inner bottom surface of the housing 1. Each second electric push rod 14 has a screw 15 installed at its telescopic end. A column 16 is movably mounted on the screw 15, and a roller 17 is movably mounted on the column 16. A nut 18 is movably mounted on the screw 15 through a thread, and the nut 18 is movably attached to the column 16.

[0026] It should be noted that the roller 17 is installed on the screw 15 by the cylinder 16, the nut 18 clamps and limits the cylinder 16, and the height of the roller 17 is adjusted by the extension and retraction of the second electric push rod 14 so that the roller 17 can be supported under the extruded product to prevent the extruded product from being deformed.

[0027] Among them, the first electric push rod 3 and the second electric push rod 14 are both electric push rods with waterproof function, which can be referenced from the underwater stepping linear telescopic electric cylinder produced by Suzhou Tongyousheng Electronic Technology Co., Ltd.

[0028] As a preferred and further option, both the first suction tube 4 and the second suction tube 5 are equipped with a fixing frame 19, the telescopic end of the first electric push rod 3 is installed on the fixing frame 19, the fixing frame 19 is movably inserted into the guide rod 20, and the guide rod 20 is installed on the inner wall of the box 1.

[0029] It should be noted that when the first electric push rod 3 extends or retracts, the first suction tube 4 and the second suction tube 5 move under the connection of the fixing frame 19, and the fixing frame 19 moves on the guide rod 20 to protect the extension end of the first electric push rod 3.

[0030] As a preferred and further option, the box body 1 is provided with a box cover 21 to cover the opening of the box body 1.

[0031] As a preferred and further option, the housing 1 is equipped with a control panel 22, which has a built-in microcontroller. The microcontroller can be programmed with software, and the control program can be written to control the device. Since this is existing technology, it will not be described in detail here.

[0032] As a preferred and further option, a water inlet pipe 23 is inserted into the side wall of the housing 1 for connecting to a cooling water source.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An extrusion cooling structure for PP particle processing, comprising a housing (1), wherein notches (2) are provided on both the front and rear end walls of the housing (1), characterized in that, The box (1) is equipped with a spray cooling structure, and a support structure is provided inside the box (1) and on both the front and rear sides of the spray cooling structure. The spray cooling structure includes two first electric push rods (3), which are symmetrically installed on the left and right walls inside the housing (1). The telescopic ends of the two first electric push rods (3) are respectively equipped with a first suction pipe (4) and a second suction pipe (5). One end of the first suction pipe (4) is equipped with a central C-shaped pipe (6), and one end of the second suction pipe (5) is equipped with a water distribution pipe (7). The water distribution pipe (7) is located on and at... Branch pipes (8) are installed on both the front and rear sides of the central C-shaped pipe (6). A side C-shaped pipe (9) is installed at one end of the branch pipe (8). Multiple valves (10) are installed on the central C-shaped pipe (6) and the side C-shaped pipe (9). A nozzle (11) is installed at one end of each valve (10). A flexible pipe (12) is installed at one end of the first suction pipe (4) and the second suction pipe (5). A submersible pump (13) is installed at one end of the flexible pipe (12).

2. The extrusion cooling structure for PP granule processing according to claim 1, characterized in that, The support structure includes two second electric push rods (14), which are installed on the inner bottom surface of the housing (1). Each second electric push rod (14) has a screw (15) installed at its telescopic end. A column (16) is movably fitted on the screw (15), and a roller (17) is movably fitted on the column (16). A nut (18) is movably fitted on the screw (15) through a thread, and the nut (18) is movably fitted onto the column (16).

3. The extrusion cooling structure for PP granule processing according to claim 1, characterized in that, A fixing frame (19) is installed on both the first suction tube (4) and the second suction tube (5). The telescopic end of the first electric push rod (3) is installed on the fixing frame (19). A guide rod (20) is movably inserted into the fixing frame (19). The guide rod (20) is installed on the inner wall of the box (1).

4. The extrusion cooling structure for PP granule processing according to claim 1, characterized in that, The box body (1) is provided with a box cover (21).

5. The extrusion cooling structure for PP granule processing according to claim 1, characterized in that, The housing (1) is equipped with a control panel (22).

6. The extrusion cooling structure for PP granule processing according to claim 1, characterized in that, A water inlet pipe (23) is inserted into the side wall of the box (1).

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