Cooling and shaping device for modified plastic extruder

Abstract

The utility model relates to the technical field of modified plastic processing, in particular to a cooling and shaping device for a modified plastic extruder, which comprises a water tank and at least three guide units mounted on the water tank, each guide unit comprises a support fixed on the water tank, the support is movably connected with a mounting seat, and the mounting seat is movably connected with the water tank. A guide roller assembly for guiding a plastic strip is arranged on the mounting seat; wherein a driving assembly is further installed above the support, the driving assembly is used for driving the installation bases to move up and down, the plastic strips are guided through the design of the at least three guiding units, the water entry depth of each installation base can be changed through the driving assembly, and when the three installation bases are located at different heights, the installation bases can be driven by the driving assembly to move up and down. The stroke distance of different lengths can be formed by adjusting the stroke distance of the plastic to be cooled, so that the cooling stroke of the plastic can be adaptively adjusted according to the condition of the plastic to be cooled, and the better adaptability is achieved.

Description

Technical Field

[0001] This utility model relates to the field of modified plastics processing technology, and in particular to a cooling and shaping device for a modified plastics extruder. Background Technology

[0002] In the extrusion process of modified plastics, an extruder extrudes molten plastic through a die to form continuous plastic strips. To ensure that the plastic strips can quickly set and maintain stable physical properties after extrusion, they are usually cooled by a cooling water tank. However, existing cooling water tanks have certain limitations.

[0003] Traditional cooling water tank designs typically employ a fixed-stroke structure, meaning the plastic strip travels a fixed distance as it passes through the cooling water tank. This design cannot adjust the cooling stroke according to different plastic materials and cooling requirements, resulting in unsatisfactory cooling effects. For some plastic materials that require longer cooling times, a fixed-stroke cooling water tank may not provide sufficient cooling time, thus affecting product quality. Conversely, for plastic materials with lower cooling requirements, an excessively long cooling stroke may lead to reduced production efficiency.

[0004] Based on this, in order to achieve adjustable cooling stroke for plastic strips, we propose a cooling and shaping device for modified plastic extruders. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the fixed stroke structure of traditional cooling water tank designs, which cannot adjust the cooling stroke according to different plastic materials and cooling requirements. Therefore, this invention proposes a modified cooling and shaping device for plastic extruders.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a cooling and shaping device for a modified plastic extruder, comprising a water tank and at least three guide units mounted on the water tank:

[0008] The guiding unit includes a bracket fixed on the water tank, a mounting base movably connected to the bracket, and a guide roller assembly for guiding the plastic strip is provided on the mounting base.

[0009] A drive assembly is also installed above the bracket, which is used to drive the mounting base to move up and down.

[0010] Furthermore, the drive assembly includes a first cylinder mounted on the bracket, the shaft end of the first cylinder passing through the bracket and fixedly connected above the mounting base;

[0011] The top of the mounting base is also fixed with a first guide rod that passes through the bracket.

[0012] Furthermore, the guide roller assembly includes a lower support seat mounted on the mounting base and an upper support seat movably connected above the lower support seat, with rollers rotatably connected to the inner sides of both the lower and upper support seats.

[0013] Furthermore, a second cylinder is fixedly mounted on the mounting base, the shaft end of the second cylinder passing through the mounting base and connected to the upper support base, and a second guide rod is also provided between the upper support base and the mounting base.

[0014] Furthermore, the roller is a V-shaped roller, and both ends of the roller are equipped with telescopic structures.

[0015] Furthermore, the telescopic structure includes pins passing through both ends of the roller, the pins passing through the lower support and the upper support, and a spring abutting between the pins and the inner hole at the end of the roller.

[0016] Furthermore, a slot is formed on the outer side of the end of the roller, and a guide that slides in the slot is threaded onto the outer side of the pin.

[0017] The present invention proposes a cooling and shaping device for a modified plastic extruder, which has the following advantages: The present invention uses at least three guide units to guide the plastic strip. The water depth of each mounting seat can be changed by the drive component. When the three mounting seats are at different heights, different stroke distances can be formed. In this way, the cooling stroke of the plastic can be adaptively adjusted according to the condition of the plastic to be cooled, thereby achieving better adaptability. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present utility model;

[0019] Figure 2 This is a schematic diagram of the guide unit structure of this utility model;

[0020] Figure 3 This is a cross-sectional view of the present invention;

[0021] Figure 4 This is a schematic diagram of the pin structure of this utility model.

[0022] In the diagram: 1. Water tank; 2. Guide unit; 21. Bracket; 22. Mounting seat; 23. Guide roller assembly; 231. Lower support seat; 232. Upper support seat; 233. Roller; 234. Second cylinder; 235. Second guide rod; 236. Pin; 237. Spring; 238. Slot; 239. Guide component; 24. Drive assembly; 241. First cylinder; 242. First guide rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figure 1-4 In one embodiment of this utility model, a cooling and shaping device for a modified plastic extruder is disclosed. This device is installed at the discharge end of the extruder. Specifically, the device includes a water tank 1 and at least three guide units 2 installed on the water tank 1. In this embodiment, the water tank 1 can be connected to an external cooling and shaping device, such as a water tank equipped with a cooling fan. The water tank circulates water through a pump and the water tank 1, thus ensuring that the internal water temperature of the entire water tank 1 does not rise excessively.

[0025] The guide unit 2 includes a bracket 21 fixed on the water tank 1, and a mounting base 22 is movably connected to the bracket 21. A guide roller assembly 23 for guiding the plastic strip is provided on the mounting base 22.

[0026] A drive assembly 24 is also installed above the bracket 21, which is used to drive the mounting base 22 to move up and down.

[0027] In other words, by employing at least three guide units 2 to guide the plastic strip, the water depth of each mounting base 22 can be changed by the drive assembly 24. When the three mounting bases 22 are at different heights, different travel distances can be formed. Thus, the cooling travel of the plastic can be adaptively adjusted according to the condition of the plastic to be cooled, thereby achieving better adaptability.

[0028] In some embodiments, the drive assembly 24 of the present invention includes a first cylinder 241 mounted on the bracket 21, wherein the shaft end of the first cylinder 241 passes through the bracket 21 and is fixedly connected above the mounting base 22.

[0029] The top of the mounting base 22 is also fixed with a first guide rod 242 that passes through the bracket 21. In this embodiment, the mounting base 22 is moved up and down by the first cylinder 241 to control the water immersion depth of the guide roller assembly 23. In addition, there are two first guide rods 242 in this embodiment to ensure the stability of the sliding guidance of the mounting base 22.

[0030] Based on the above embodiments, the guide roller assembly 23 in this embodiment includes a lower support 231 mounted on the mounting base 22 and an upper support 232 movably connected above the lower support 231. Rollers 233 are rotatably connected to the inner sides of both the lower support 231 and the upper support 232.

[0031] In a preferred embodiment, three rollers 233 are rotatably connected to the lower support 231, and two rollers 233 are rotatably connected inside the upper support 232. The upper roller 233 is directly opposite the two adjacent lower rollers 233 to ensure the stability of the upper and lower limit of the plastic strip and avoid the problem of the plastic strip floating. In addition, in this embodiment, both the lower support 231 and the upper support 232 are set with a U-shaped structure to facilitate the installation of the rollers 233.

[0032] In some embodiments, a second cylinder 234 is also fixedly mounted on the mounting base 22 of this utility model. The shaft end of the second cylinder 234 passes through the mounting base 22 and is connected to the upper support base 232. A second guide rod 235 is also provided between the upper support base 232 and the mounting base 22. Of course, in this embodiment, the second guide rod 235 and the upper support base 232 are also fixedly connected and pass through the mounting base 22. In this embodiment, the upper support base 232 is pushed downward by the second cylinder 234. In specific operation, the plastic strip is first passed between the upper roller 233 and the lower roller 233. Then, the upper support base 232 is driven downward by the second cylinder 234, so that the plastic strip is limited and guided between the upper roller 233 and the lower roller 233. This avoids the plastic strip from floating and ensures the accuracy of the height adjustment of the plastic strip.

[0033] Preferably, in this embodiment, the roller 233 is a V-shaped roller, and both ends of the roller 233 are provided with telescopic structures.

[0034] In some embodiments, the telescopic structure of this utility model includes pins 236 passing through both ends of the roller 233. The pins 236 are connected to the lower support 231 and the upper support 232. A spring 237 abuts against the inner hole at the end of the pins 236 and the roller 233. In other words, in this embodiment, the roller 233 is disassembled by using a telescopically movable pin 236 connected to the lower support 231 and the upper support 232, thus improving the convenience of maintenance. In specific operation, the roller 233 can be removed simply by pressing the pins 236 to retract them.

[0035] In addition, in this embodiment, a slot 238 is provided on the outer side of the end of the roller 233, and a guide 239 that slides in the slot 238 is threaded on the outer side of the pin 236. In this embodiment, the guide 239 is set as a bolt, which is used to guide the pin 236. Of course, the pin 236 and the spring 237 can be removed by removing the bolt during disassembly.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cooling and shaping device for modified plastic extruders, comprising a water tank (1) and at least three guide units (2) installed on the water tank (1), characterized in that: the guide unit (2) comprises a bracket (21) fixed on the water tank (1), a mounting seat (22) movably connected to the bracket (21), and a guide roller assembly (23) for guiding the plastic strip arranged on the mounting seat (22); wherein a driving assembly (24) is further installed above the bracket (21), and the driving assembly (24) is used to drive the mounting seat (22) to move up and down.

2. The cooling and setting device for a modified plastic extruder according to claim 1, characterized in that: The driving assembly (24) comprises a first air cylinder (241) installed on the bracket (21), and the shaft end of the first air cylinder (241) penetrates through the bracket (21) and is fixedly connected above the mounting seat (22); wherein a first guide rod (242) penetrating through the bracket (21) is further fixed on the top of the mounting seat (22).

3. The cooling and setting device for a modified plastic extruder according to claim 1, characterized in that: The guide roller assembly (23) comprises a lower support seat (231) installed on the mounting seat (22) and an upper support seat (232) movably connected above the lower support seat (231), and a roller (233) is rotatably connected to the inner side of the lower support seat (231) and the upper support seat (232).

4. The cooling and setting device for a modified plastic extruder according to claim 3, characterized in that: A second air cylinder (234) is further fixedly installed on the mounting seat (22), the shaft end of the second air cylinder (234) penetrates through the mounting seat (22) and is connected with the upper support seat (232), and a second guide rod (235) is further arranged between the upper support seat (232) and the mounting seat (22).

5. The cooling and setting device for a modified plastic extruder according to claim 3, characterized in that: The roller (233) is a V-shaped roller, and both ends of the roller (233) are provided in a telescopic structure.

6. The cooling and setting device for a modified plastic extruder according to claim 5, characterized in that: The telescopic structure comprises a pin shaft (236) penetrating through both ends of the roller (233), and the pin shaft (236) penetrates through the lower support seat (231) and the upper support seat (232), and a spring (237) is in contact between the pin shaft (236) and the inner hole of the end of the roller (233).

7. The cooling and setting device for a modified plastic extruder according to claim 6, characterized in that: A one-groove (238) is formed on the outer side of the end of the roller (233), and a guide piece (239) is threadedly connected to the outer side of the pin shaft (236) and slides in the one-groove (238).

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