Water circulation system for recycling and cooling plastic film waste

Abstract

The utility model discloses a water circulation system for recycling and cooling plastic film waste, and belongs to the technical field of plastic film production waste recycling devices. The device comprises a water tank which is arranged opposite to a die head of the plastic extruding machine, a collecting hopper is mounted at a position close to the other end of the water tank; a plurality of limiting shafts are mounted on the water tank and the collecting hopper, and an inclined plate is further connected between the opposite end sides of the water tank and the collecting hopper; a flow guide box with an opening in the lower end is further arranged above the collecting hopper; an inner cavity of the flow guide box is connected with a fan through an air pipe arranged on the side wall; a water return pipe is further arranged at the lower part of the collecting hopper; the other end of the water return pipe is connected to the water tank; the plastic film waste material cooling device effectively solves the problem that the cooling requirement in the plastic film waste material recycling process cannot be met with low cost at present.

Description

Technical Field

[0001] This utility model relates to the technical field of waste recycling devices for plastic film production, and specifically to a water circulation system for cooling waste recycling of plastic film. Background Technology

[0002] In the production of plastic film, in addition to the possibility of substandard plastic film rolls due to the operating conditions of equipment such as winding machines, waste plastic film rolls are also generally generated before and after machine start-up and shutdown. In order to save raw material costs, these substandard and waste plastic film rolls are often recycled into plastic granules through recycling equipment and then processed together with other raw materials. In the recycling process, the plastic filaments extruded by the extruder need to be cooled and dried before being sent to the processing machine to be cut into plastic granules. However, the cooling equipment currently used with the extruder is expensive and requires high precision. This is because conventional extrusion finishing machines need to control the precision of the molding structure, but the processing precision does not need to be considered in the current recycling stage. Therefore, there is a need to design a low-cost circulating water cooling system that can meet the requirements of the plastic film recycling process. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a water circulation system for cooling plastic film waste recycling, so as to solve the current problem of lacking a low-cost cooling system that can meet the cooling needs in the plastic film waste recycling process.

[0004] To solve the above problems, this utility model provides the following technical solution:

[0005] A water circulation system for cooling and recycling plastic film waste includes a water tank positioned opposite the extruder die head; a collection hopper installed near the other end of the water tank; several limiting shafts installed on both the water tank and the collection hopper, and an inclined plate connected between the opposite ends of the water tank and the collection hopper; a flow guide box with an open lower end is provided above the collection hopper; the inner cavity of the flow guide box is connected to a fan via an air duct installed on the side wall; a return water pipe is provided at the lower part of the collection hopper; the other end of the return water pipe is connected to the water tank.

[0006] Preferably, it also includes an outdoor water storage tank for collecting natural precipitation; the outdoor water storage tank is capable of supplying water to the tank through a water pipe with a valve.

[0007] Preferably, the water tank is a strip-shaped box-like structure placed flat on the ground, with one end located on the underside of the extruder die head.

[0008] Preferably, a number of steps are provided in the inner cavity of the water tank; the height of the top surface of the steps gradually decreases from the side of the water tank near the extruder mold head to the other side; a limiting shaft is provided above each step in the water tank; and a roller is rotatably installed on the limiting shaft in the water tank.

[0009] Preferably, two pairs of L-plates are provided at the edge of the top opening of the collecting hopper; the two ends of the limiting shaft are detachably mounted on the L-plates; the limiting shafts on the collecting hopper are two fixed shafts, and several annular grooves are opened on the limiting shafts; the width of these annular grooves is consistent with the diameter of the plastic wire processed by the extruder.

[0010] Preferably, a support rod is provided below the collection hopper; the installation height of the collection hopper is greater than the height of the water tank; the inclined plate is a straight plate structure with a U-shaped cross-section.

[0011] Both ends of the flow guide box are positioned directly opposite the inner cavity of the collection hopper.

[0012] Preferably, one end of the return water pipe is connected to the water tank near the extruder die head.

[0013] The beneficial effects of this utility model are:

[0014] This invention designs an auxiliary system for recycling plastic film waste that integrates cooling, drying, and water circulation. It has a simple structure, is easy to process and maintain, and can effectively and cost-effectively recycle waste plastic film products, thereby reducing raw material consumption and production costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention in an embodiment;

[0016] Figure 2 yes Figure 1 Front view of the device;

[0017] Explanation of reference numerals in the attached drawings: 1. Water tank, 2. Collection hopper, 3. Limiting shaft, 4. Inclined plate, 5. Flow guide box, 6. Fan, 7. Return water pipe, 8. Water storage tank, 9. Step, 10. Support rod. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: Example

[0019] Reference Figure 1This embodiment provides a water circulation system for cooling and recycling plastic film waste; it includes a water tank 1 arranged opposite to the extruder die head; a collection hopper 2 is installed at the other end near the water tank 1; several limiting shafts 3 are installed on both the water tank 1 and the collection hopper 2, and an inclined plate 4 is connected between the opposite ends of the water tank 1 and the collection hopper 2; a guide box 5 with an open lower end is also provided above the collection hopper 2; the inner cavity of the guide box 5 is connected to a fan 6 through an air duct provided on the side wall; a return water pipe 7 is also provided at the lower part of the collection hopper 2; the other end of the return water pipe 7 is connected to the location of the water tank 1.

[0020] It also includes an outdoor water storage tank 8 for collecting natural precipitation; the outdoor water storage tank 8 can supply water to the water tank 1 through a water pipe with a valve.

[0021] Water tank 1 is a strip-shaped box-like structure placed flat on the ground, with one end located on the underside of the extruder mold head.

[0022] Several steps 9 are provided in the inner cavity of the water tank 1; the height of the top surface of the step 9 gradually decreases from the side of the water tank 1 near the extruder mold head to the other side; a limiting shaft is provided above each step 9 in the water tank 1; and rollers are rotatably installed on the limiting shafts 3 in the water tank 1.

[0023] Two pairs of L-plates are provided at the edge of the top opening of the collecting hopper 2; the two ends of the limiting shaft 3 are detachably mounted on the L-plates; the limiting shaft 3 on the collecting hopper 2 consists of two fixed shafts, and several annular grooves are opened on the limiting shaft 3; the width of these annular grooves is consistent with the diameter of the plastic wire processed by the extruder.

[0024] A support rod 10 is installed below the collection hopper 2; the installation height of the collection hopper 2 is greater than the height of the water tank 1; the inclined plate 4 is a straight plate structure with a U-shaped cross-section.

[0025] Both ends of the flow guide box 5 are positioned directly opposite the inner cavity of the collection hopper 2.

[0026] One end of the return water pipe 7 is connected to the water tank 1 near the extruder die head. The return water pipe is placed at the end of the water tank to utilize the potential energy of the flowing water to move the water in the tank from front to back, thereby improving the cooling effect.

[0027] In this embodiment, when the utility model device works with an extruder, the plastic thread processed from the die head of the extruder will bypass the roller on the limiting shaft in the water tank, allowing the plastic thread to be fully immersed in the water tank for cooling. Afterward, the plastic thread will enter the collection hopper through the inclined plate. During this process, some of the water carried by the plastic thread will fall down the inclined plate into the water tank. At the collection hopper, the plastic thread will be blown down into the collection hopper by the air force provided by the fan through the upper guide box, and the remaining water on the plastic thread will be blown back into the collection hopper and re-enter the end of the water tank through the return water pipe below the collection hopper. In addition, when the water in the water tank is insufficient, cooling water can be supplied to the water tank through an outdoor water storage tank.

Claims

1. A water circulation system for cooling and recycling plastic film waste, characterized in that: It includes a water tank (1) positioned opposite the extruder die head; a collection hopper (2) is installed at the other end near the water tank (1); several limiting shafts (3) are installed on both the water tank (1) and the collection hopper (2), and an inclined plate (4) is connected between the opposite ends of the water tank (1) and the collection hopper (2); a guide box (5) with an open lower end is also provided above the collection hopper (2); the inner cavity of the guide box (5) is connected to a blower (6) through an air duct set on the side wall; a return water pipe (7) is also provided at the lower part of the collection hopper (2); the other end of the return water pipe (7) is connected to the water tank (1).

2. The water circulation system for cooling and recycling plastic film waste according to claim 1, characterized in that: It also includes an outdoor water storage tank (8) for collecting natural precipitation; the outdoor water storage tank (8) can supply water to the water tank (1) through a water pipe with a valve.

3. A water circulation system for cooling and recycling plastic film waste according to claim 1, characterized in that: The water tank (1) is a strip-shaped box-shaped structure that is laid flat on the ground, with one end set on the lower side of the extruder mold head.

4. A water circulation system for cooling and recycling plastic film waste according to claim 1, characterized in that: Several steps (9) are provided in the inner cavity of the water tank (1); the height of the top surface of the step (9) decreases step by step from the side of the water tank (1) near the extruder mold head to the other side; a limiting shaft is provided above each step (9) in the water tank (1); and rollers are rotatably installed on the limiting shaft (3) in the water tank (1).

5. A water circulation system for cooling and recycling plastic film waste according to claim 1, characterized in that: Two pairs of L-plates are provided at the edge of the top opening of the collecting hopper (2); the two ends of the limiting shaft (3) are detachably mounted on the L-plates; the limiting shaft (3) located on the collecting hopper (2) consists of two fixed shafts, and several annular grooves are opened on the limiting shaft (3); the width of these annular grooves is consistent with the diameter of the plastic wire processed by the extruder.

6. A water circulation system for cooling and recycling plastic film waste according to claim 1, characterized in that: A support rod (10) is provided below the collection bucket (2); the installation height of the collection bucket (2) is greater than the height of the water tank (1); the inclined plate (4) is a straight plate structure with a U-shaped cross section.

7. A water circulation system for cooling and recycling plastic film waste according to claim 1, characterized in that: Both ends of the guide box (5) are positioned directly opposite the inner cavity of the collection hopper (2).

8. A water circulation system for cooling and recycling plastic film waste according to claim 1, characterized in that: One end of the return water pipe (7) is connected to the water tank (1) near the extruder mold head.

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