Directional deviation rectifying device suitable for cast film forming machine

Abstract

The utility model discloses a directional deviation rectifying device suitable for a cast film forming machine, which is characterized in that two deviation rectifying rollers are rotatably supported on a deviation rectifying roller bracket, the deviation rectifying roller bracket is supported on a fixed base through a deviation rectifying glider, the deviation rectifying glider comprises a sliding rod support and a spherical hinge support, a deviation rectifying sliding rod is arranged on the sliding rod support, and the spherical hinge support is arranged on the sliding rod support. A spherical hinge inner ring is sleeved on the deviation rectifying sliding rod, the spherical hinge inner ring is supported on a spherical hinge outer ring in a swinging manner, and the spherical hinge outer ring is mounted on a spherical hinge support; and a deviation rectifying driver is arranged between the deviation rectifying roller bracket and the fixed base. The sliding rod support is installed on the deviation rectifying roller support through a sliding rod base plate, and the spherical hinge support is installed on the fixed base through a spherical support base plate. And the deviation rectifying roller bracket is supported on the fixed base through four deviation rectifying gliders. The fixed base is provided with a detection sensor, and the detection sensor is a photoelectric sensor. The deviation rectifying device can ensure that the cast film conveying belt does not deviate during operation, and is particularly suitable for a cast film forming machine with the conveying belt.

Description

Technical Field

[0001] The utility model relates to film casting production equipment, in particular to a conveyor belt deviation correction device with an extruded film conveyor belt. Background Art

[0002] Currently, film casting production equipment primarily consists of a film extrusion die and multiple pairs of opposing cooling and embossing rollers. There are two main casting processes: first, embossing the rollers before cooling and shaping; and second, cooling and shaping before embossing. Regardless of which process is used, the film casting equipment relies on a rotating cooling roller for cooling. However, because the contact angle and arc length between the film and the cooling roller are always fixed, the ideal cooling and shaping effect can only be achieved by reducing the cooling roller speed to extend the cooling time. However, this reduction in cooling roller speed inevitably leads to a decrease in the operating efficiency of the casting machine. Therefore, the existing structure that relies on cooling and shaping the extruded film with the cooling roller has become a bottleneck in improving the production efficiency of the casting machine.

[0003] The cast film conveyor belt structure allows the molten film to be extruded onto the conveyor belt for cooling and shaping. This not only effectively prolongs and controls the shaping time of the cast film, but also prevents the molten film from sticking to the rollers. However, as the extruded film on the cast film conveyor belt moves along the conveyor belt, the tension on both sides of the conveyor belt fluctuates, which can easily cause the extruded cast film to deviate from its original straight path. This not only causes wrinkles and ribs in the middle of the film, but also creates zigzag lines on both sides of the cast film, increasing the amount of cutting required later, resulting in a decrease in the cast film yield and serious waste of raw materials. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a directional correction device suitable for a cast film forming machine, which can ensure that the conveyor belt runs without deviation, so as to reduce the waste of raw materials and stabilize the production quality of cast film.

[0005] In order to solve the above technical problems, the utility model is a directional correction device suitable for a cast film forming machine, comprising two correction rollers parallel to each other, the two correction rollers being rotatably supported on a correction roller bracket, the correction roller bracket being supported on a fixed base through a correction slider, the correction slider comprising a slide rod support and a ball joint support, a correction slide rod being installed on the slide rod support, a ball joint inner ring being mounted on the correction slide rod, the ball joint inner ring being swingably supported on a ball joint outer ring, the ball joint outer ring being installed on the ball joint support; a correction drive is arranged between the correction roller bracket and the fixed base.

[0006] Furthermore, the sliding rod support is installed on the correction roller bracket through the sliding rod base plate, and the ball joint support is installed on the fixed base through the ball support base plate.

[0007] Preferably, the correction roller bracket is supported on a fixed base through four correction slides.

[0008] Furthermore, a detection sensor is installed on the fixed base, and the detection sensor is a photoelectric sensor.

[0009] Preferably, the deviation correction driver is an electric push rod.

[0010] In the technical solution of the present invention, due to the use of a film conveyor belt correction structure, the direction of the correction roller on the conveyor belt correction device is slightly adjusted to generate an adjustment tension on both sides of the conveyor belt, thereby adjusting the running direction of the film and keeping the running path of the film in the same straight line. This not only avoids uneven film surface retraction and wrinkling caused by the curved running of the film, but also avoids the waste of film material caused by the offset of the film edge and the increase in the cutting amount of the film edge, thereby effectively improving the film yield rate and avoiding the waste of film raw materials. By adopting the film conveyor belt correction structure, the molten extruded film can be squeezed onto the film conveyor belt for temperature-controlled casting and shaping. The molten film can obtain a sufficient film shaping time and shaping path length on the conveyor belt without being restricted by the cooling angle size and arc length of the cooling roller. In this way, the conveying speed of the film on the conveyor belt can be greatly improved, thereby greatly improving the casting operation efficiency of the casting machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0012] Figure 1 This is a three-dimensional structural diagram of a specific embodiment of the utility model;

[0013] Figure 2 yes Figure 1 Front view of the structure;

[0014] Figure 3 yes Figure 2 A-A cross-sectional structural diagram;

[0015] Figure 4 yes Figure 1 Installation structure diagram of the middle deviation-correcting slider;

[0016] Figure 5 yes Figure 1 Front structural diagram of the middle deviation-correcting slider;

[0017] Figure 6 yes Figure 5 B-B sectional view;

[0018] In the figure, 1 is the deflection correction roller, 2 is the deflection correction driver, 3 is the deflection correction roller bracket, 4 is the deflection correction slider, 5 is the fixed base, 6 is the detection sensor, 7 is the slide bar substrate, 8 is the slide bar support, 9 is the ball joint substrate, 10 is the ball joint support, 11 is the deflection correction slide bar, 12 is the ball joint inner ring, and 13 is the ball joint outer ring. DETAILED DESCRIPTION

[0019] like Figure 1 、 Figure 2 and Figure 3 The illustrated device is suitable for use in a cast film forming machine. The conveyor belt deflection correction device comprises two parallel deflection correction rollers 1, each slightly longer than the belt width of the film conveyor belt. The two deflection correction rollers 1 are rotatably supported on a deflection correction roller bracket 3. During installation, the film conveyor belt passes over the two deflection correction rollers 1. The deflection correction roller bracket 3 is a rectangular frame and is movably supported on a fixed base 5 via a deflection correction slider 4. The fixed base 5 is a rectangular frame structure and is fixedly mounted to the conveyor belt bracket.

[0020] A deflection correction driver 2 is provided between the deflection correction roller bracket 3 and the corresponding frame beam of the fixed base 5. The deflection correction driver 2 is an electric push rod, one end of which is hinged to the deflection correction roller bracket 3, and the other end of which is hinged to the cabinet frame beam of the fixed base 5. A detection sensor 6 is fixedly mounted on the fixed base 5. The detection sensor 6 is a photoelectric sensor for detecting the running edge position of the cast film on the film conveyor belt.

[0021] like Figure 4 、 Figure 5 and Figure 6 The illustrated deflection correction slide 4 includes two slide rod supports 8, each of which has a deflection correction slide rod 11 fixedly mounted thereon. The two slide rod supports 8 are located at either end of the deflection correction slide rod 11 and are fixedly mounted to the deflection correction roller support 3 via a slide rod base plate 7. A spherical joint inner ring 12 is mounted on the deflection correction slide rod 11 and is pivotally supported on a spherical joint outer ring 13, which is fixedly mounted on a spherical joint support 10. The spherical joint support 10 is fixedly mounted to a fixed base 5 via a spherical joint base plate 9. The fixed base 5 is fixedly connected to the conveyor belt support. The spherical joint inner ring 12 is a nylon ring with a convex spherical surface, while the spherical joint outer ring 13 has a concave spherical surface. The spherical joint outer ring 13 is also made of nylon, and the convex spherical surface of the spherical joint inner ring 12 and the concave spherical surface of the spherical joint outer ring 13 are on the same spherical surface.

[0022] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. Numerous modifications and variations are possible based on the contents of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. All other embodiments derived by those skilled in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

Claims

1. An orientation correction device suitable for a cast film forming machine, characterized in that: The invention comprises two mutually parallel correction rollers (1), wherein the two correction rollers (1) are rotatably supported on a correction roller bracket (3), wherein the correction roller bracket (3) is supported on a fixed base (5) through a correction slide (4), wherein the correction slide (4) comprises a slide rod support (8) and a ball joint support (10), wherein a correction slide rod (11) is mounted on the slide rod support (8), and a ball joint inner ring (12) is mounted on the correction slide rod (11), wherein the ball joint inner ring (12) is swingably supported on a ball joint outer ring (13), and wherein the ball joint outer ring (13) is mounted on the ball joint support (10); a correction driver (2) is arranged between the correction roller bracket (3) and the fixed base (5).

2. The orientation correction device for a cast film forming machine according to claim 1, characterized in that: The slide rod support (8) is installed on the deviation correction roller bracket (3) through the slide rod base plate (7), and the ball joint support (10) is installed on the fixed base (5) through the ball support base plate (9).

3. The orientation correction device for a cast film forming machine according to claim 1 or 2, characterized in that: The deviation-correcting roller bracket (3) is supported on a fixed base (5) via four deviation-correcting slides (4).

4. The orientation correction device for a cast film forming machine according to claim 1, characterized in that: A detection sensor (6) is installed on the fixed base (5), and the detection sensor (6) is a photoelectric sensor.

5. The orientation correction device for a cast film forming machine according to claim 1, characterized in that: The deviation correction driver (2) is an electric push rod.

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