Double-layer experimental film blowing machine

Abstract

The utility model relates to the technical field of film blowing machines, in particular to a double-layer experimental film blowing machine which comprises a machine body, two groups of double-layer extruders, a die head and a rack, the double-layer extruders are arranged on one side of the machine body, the die head is arranged at the lower end of the middle of the machine body, and the rack is arranged on the machine body. The rack is arranged at the lower end of the middle of the machine body, and the winding machine is arranged on the side, away from the double-layer extruder, of the machine body. According to the utility model, the two groups of double-layer extruders are arranged on the machine body, so that a worker can respectively distribute various raw material formulas to the two groups of double-layer extruders, the excellence and reliability of the raw material formulas are tested, excellent test data are provided for the formulas, the raw material formula test cost is low, the loss caused by manpower, materials and energy consumption is greatly reduced, and the production efficiency is improved. The double-layer experimental film blowing machine is simple and convenient to operate and remarkable in effect, and the two groups of double-layer extruders are arranged on the machine body, so that the occupied area of the double-layer experimental film blowing machine is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of film blowing machines, in particular to a double-layer experimental film blowing machine. Background Art

[0002] A film blowing machine melts plastic particles and then blows them into films. There are many types of film blowing machines, such as PE, POF, PVC, etc. The films blown with brand-new particles are new materials, with uniform color, cleanliness, and good stretching properties for the bags.

[0003] Currently, all TPU production equipment on the market is large-scale equipment, which brings great losses and wastes for the production trial of special TPU raw material products and increases the economic cost of enterprises. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problem of great losses and wastes caused by the production trial of special TPU raw material products in the prior art, and to propose a double-layer experimental film blowing machine.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A double-layer experimental film blowing machine, including a machine body, in which are provided:

[0007] Two groups of double-layer extruders, which are arranged on one side of the machine body;

[0008] A die head, which is arranged at the lower end of the middle part of the machine body;

[0009] A frame, which is arranged at the lower end of the middle part of the machine body;

[0010] A winding machine, which is arranged on one side of the machine body away from the double-layer extruder;

[0011] An electrical box, which is arranged on one side of the machine body away from the double-layer extruder.

[0012] Preferably, the double-layer extruder includes:

[0013] A motor, which is installed on one side of the machine body away from the winding machine;

[0014] A speed reducer, which is installed at the output end of the motor, and the bottom end of the speed reducer is installed on the machine body;

[0015] A hopper, which is arranged on the machine body;

[0016] A barrel screw, which is arranged on the machine body.

[0017] Preferably, an air ring is provided at the top end of the die head, and the die head is located below the frame.

[0018] Preferably, the frame includes:

[0019] A chevron plate, which is arranged at the upper end of the machine body;

[0020] A traction roller, which is arranged at the upper end of the machine body;

[0021] A transition guide roller, which is arranged at the upper end of the machine body.

[0022] Preferably, the frame is made by welding with selected GB steel.

[0023] Preferably, the rewinder consists of a friction driving roller, a frequency converter, a friction rubber roller, a pressing arm and a winding shaft, and the winding shaft is installed on the pressing arm.

[0024] Compared with the prior art, the present utility model has the following advantages:

[0025] In the present utility model, two groups of double-layer extruders are arranged on the machine body, so that the staff can respectively distribute various raw material formulas to the two groups of double-layer extruders to test the excellence and reliability of the raw material formulas, provide excellent test data for the formulas, and have a low cost for raw material formula tests, greatly reducing the losses caused by labor, materials and energy consumption, which helps to reduce the production cost and test cost of the enterprise. Arranging two groups of double-layer extruders on the machine body helps to reduce the floor area of the double-layer experimental blown film machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of a double-layer experimental blown film machine proposed by the present utility model;

[0027] Figure 2 is a front view of a double-layer experimental blown film machine proposed by the present utility model;

[0028] Figure 3 is a top view of a double-layer experimental blown film machine proposed by the present utility model.

[0029] In the figure: 1, machine body; 2, double-layer extruder; 201, motor; 202, speed reducer; 203, hopper; 204, barrel screw; 3, die head; 4, frame; 401, chevron plate; 402, a traction roller; 403, transition guide roller; 5, rewinder; 6, electrical box; 7, air ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0031] Referring to Figures 1 - 3 , a double-layer experimental blown film machine includes a machine body 1, in which two groups of double-layer extruders 2, a die head 3, a frame 4, a winding machine 5 and an electrical box 6 are provided. The components are arranged as follows:

[0032] Based on the setting of the machine body 1, in order to realize the detection and test of different raw material formulas simultaneously, a double-layer extruder 2 is provided on one side of the machine body 1.

[0033] The double-layer extruder 2 includes a motor 201, a reduction box 202, a hopper 203 and a barrel screw 204. The components are arranged as follows:

[0034] The motor 201 is installed on the side of the machine body 1 away from the winding machine 5. The motor 201 is a three-phase AC 3800V 50HZ variable frequency speed regulation motor with overload protection and short-circuit protection functions. The reduction box 202 is installed at the output end of the motor 201, and the bottom end of the reduction box 202 is installed on the machine body 1. The hopper 203 is arranged on the machine body 1, and the barrel screw 204 is arranged on the machine body 1. The rotation speed of the main screw in the barrel screw 204 can be steplessly adjusted. The heating circuit of the barrel screw 204, the double-layer extruder 2 is respectively equipped with first-stage, second-stage and third-stage electric heaters, and there are also screen changer and die head three-zone heaters. The total of eleven-zone heating all adopts intelligent automatic temperature control meters, and are respectively automatically controlled within the heating temperature range required by the process by their respective temperature controllers.

[0035] The die head 3 is arranged at the lower middle position of the machine body 1. The die head 3 adopts a double-layer independent temperature control structure. The die head 3 respectively controls the temperatures of the two groups of double-layer extruders 2, avoiding the occurrence of temperature runaway caused by large temperature differences in the raw material formulas, which helps to improve the authenticity of the test data of the raw material formulas. A wind ring 7 is arranged at the top of the die head 3, and cold air is blown out through the wind ring 7 to quickly cool and shape the film.

[0036] The frame 4 is arranged at the lower middle position of the machine body 1. The frame 4 is made of GB steel by welding. The die head 3 is located below the frame 4.

[0037] The frame 4 includes a herringbone plate 401, a traction roller 402 and a transition guide roller 403. The components are arranged as follows:

[0038] The herringbone plate 401 is arranged at the upper end of the machine body 1. It should be noted that the opening angle of the herringbone plate 401 can be adjusted according to the requirements of the production process. A traction roller 402 is arranged at the upper end of the machine body 1. It should be noted that a variable frequency speed regulator for driving its movement is equipped on the traction roller 402 to provide a continuously adjustable speed. The transition guide roller 403 is arranged at the upper end of the machine body 1.

[0039] The winding machine 5 is arranged on one side of the machine body 1 away from the double - layer extruder 2. The winding machine 5 is composed of a friction driving roller, a variable frequency speed regulator, a friction rubber roller, a pressing arm and a winding shaft. The winding shaft is installed on the pressing arm. The friction driving roller is equipped with variable frequency speed regulation drive to drive the friction rubber roller to rotate. The film is continuously wound by the winding shaft on the pressing arm through the friction force between the rubber roller and the winding shaft, so as to complete the winding operation of the film. The electrical control box 6 is arranged on one side of the machine body 1 away from the double - layer extruder 2.

[0040] The functional principle of the present utility model can be described through the following operation methods:

[0041] Turn on the heater and adjust the set temperature of each zone;

[0042] When the set temperature is reached and the temperatures of the barrel screw 204 and each part of the die head 3 are uniform and standby, start the double - layer extruder 2, observe the situation of the molten material flowing out of the die head, gradually adjust the speed to the required value according to the requirements of the production process, introduce air into the die head and the blown film tube, clamp the blank flowing out of the die orifice by hand and lead it to the traction roller 402 until it reaches the winding machine 5, inflate the film tube, turn on the air ring 7 to introduce cold air for cooling. When the film tube is stable and meets the requirements, production can be started;

[0043] Adopt the upward blowing method. The raw material formula particles pass through two groups of double - layer extruders 2 respectively. The particles are melted at high temperature by the barrel screw 204 and transported to the die head 3 to send out a tubular blank. After being vertically upwardly pulled, air is blown in at the same time to make the tube blank transversely stretched. Control the amount of air blown in and the pulling speed. The film is cooled and shaped by the air blown out by the air ring 7. The finished film is continuously wound by the winding machine 5.

[0044] The above - mentioned is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. A double-layer experimental blown film machine, comprising a machine body (1), characterized in that, The machine body (1) is provided with: Two groups of double-layer extruders (2), and the double-layer extruders (2) are arranged on one side of the machine body (1); A die head (3), and the die head (3) is arranged at the lower end position in the middle of the machine body (1); A frame (4), and the frame (4) is arranged at the lower end position in the middle of the machine body (1); A winding machine (5), and the winding machine (5) is arranged on one side of the machine body (1) far away from the double-layer extruder (2); An electrical box (6), and the electrical box (6) is arranged on one side of the machine body (1) far away from the double-layer extruder (2).

2. The double-layer experimental film blowing machine according to claim 1, characterized in that The double-layer extruder (2) includes: A motor (201), and the motor (201) is installed on one side of the machine body (1) far away from the winding machine (5); A speed reducer (202), and the speed reducer (202) is installed at the output end of the motor (201), and the bottom end of the speed reducer (202) is installed on the machine body (1); A hopper (203), and the hopper (203) is arranged on the machine body (1); A barrel screw (204), and the barrel screw (204) is arranged on the machine body (1).

3. The double-layer experimental film blowing machine according to claim 1, wherein A wind ring (7) is arranged at the top end of the die head (3), and the die head (3) is located below the frame (4).

4. A double-layer experimental blown film machine according to claim 1, characterized in that, The frame (4) includes: A herringbone plate (401), and the herringbone plate (401) is arranged at the upper end position of the machine body (1); A traction roller (402), and the traction roller (402) is arranged at the upper end position of the machine body (1); A transition guide roller (403), and the transition guide roller (403) is arranged at the upper end position of the machine body (1).

5. A double-layer experimental blown film machine according to claim 4, characterized in that, The frame (4) is made by welding with GB steel.

6. The double-layer experimental blown film machine according to claim 1, wherein, The winding machine (5) is composed of a friction driving roller, a frequency converter, a friction rubber roller, a pressing arm and a winding shaft, and the winding shaft is installed on the pressing arm.

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