Automatic screen changing device for PVC shrink film

Abstract

The utility model provides a PVC shrink film automatic screen changing device which comprises a fixing base and a supporting disc, one side of the fixing base is fixedly connected with the supporting disc, and a screen changer is rotationally installed in the fixing base and the supporting disc. Due to the overall arrangement, a plurality of filter screens can be preassembled in advance at a time, so that after the filter screens are replaced, if the replaced filter screens are not cleaned in time, the normal operation of the whole filter screen is not influenced, more time is reserved for cleaning the filter screens, the whole filter screen is more convenient and flexible in the using process, and the service life of the filter screen is prolonged. And the method has a higher error-tolerant rate.

Description

Technical Field

[0001] The utility model relates to the field of PVC shrink film production, and particularly relates to an automatic screen changer for PVC shrink film. Background Art

[0002] The automatic screen changer for PVC shrink film is a device used on the blown film equipment for PVC heat shrink film, which can replace the filter screen without stopping the machine. The purpose of this device is to improve production efficiency and reduce production interruption and raw material loss caused by replacing the filter screen.

[0003] However, for the existing automatic screen changers for PVC shrink film, such as single-plate double-station screen changers, during use, it is necessary to manually clean the filter screen frequently. Once the cleaning is forgotten, it cannot be used normally, resulting in a relatively low overall error tolerance.

[0004] Therefore, it is very necessary to invent an automatic screen changer for PVC shrink film. Content of the Utility Model

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model for an automatic screen changer for PVC shrink film is as follows: An automatic screen changer for PVC shrink film includes a fixed seat and a support disk, wherein: One side of the fixed seat is fixedly connected to the support disk, and a screen changer is rotatably installed in the fixed seat and the support disk;

[0006] Preferably, a discharge hole is penetrated through the fixed seat;

[0007] Preferably, the screen changer includes a motor and a turntable, and the motor is fixedly installed outside the support disk. A screen disk is fixedly installed on the circumferential surface of the turntable; A plurality of mesh holes for installing filter screens are evenly distributed on the surface of the screen disk, and the screen disk is rotatably installed in the fixed seat; The output end of the motor rotates through the support disk and is fixedly connected to the turntable; The turntable is rotatably installed in the fixed seat and the support disk; The thickness of the turntable is less than the thickness of the screen disk.

[0008] Preferably, a chamber is opened inside the fixed seat, and the chamber is communicated with the discharge hole, and the discharge hole and the chamber are vertically arranged; A limiting chamber is opened on one side of the fixed seat connected to the support disk, and the limiting chamber is communicated with the chamber, and the width of the limiting chamber is less than the width of the chamber; The turntable is rotatably installed in the chamber; A part of the screen disk is rotatably installed in the limiting chamber.

[0009] Preferably, a ring chamber is opened in the support disk, and the ring chamber is communicated with the limiting chamber, and a limiting hole is penetrated through the center of the surface of the support disk; The turntable is rotatably installed in the ring chamber, and the turntable and the ring chamber are coaxial; The output end of the motor is rotatably installed in the limiting hole.

[0010] Preferably, a connection hole is penetrated through the surface of the turntable, and the turntable is fixedly connected to the output end of the motor through the connection hole.

[0011] Compared with the prior art, the advantages of the present utility model are as follows:

[0012] With the overall arrangement of the present utility model, multiple filters can be pre-installed in advance at one time. In this way, after the filter is replaced, if the replaced filter is not cleaned in time, it will not affect the normal operation of the whole, so as to reserve more time for cleaning the filter, making the whole more convenient and flexible during use and having a higher error tolerance rate. Description of the Drawings

[0013] Figure 1 is the overall structural schematic diagram of the present utility model.

[0014] Figure 2 is the exploded structural schematic diagram of the present utility model.

[0015] Figure 3 is the partial enlarged structural schematic diagram at A of the present utility model.

[0016] In the figure:

[0017] Fixed seat 1, support disk 2, discharge hole 3, motor 4, turntable 5, mesh disk 6, mesh hole 7, chamber 8, limiting hole 9, limiting chamber 10, annular chamber 11, connection hole 12. Detailed Embodiment

[0018] In order to enable those skilled in the art of the present technology to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0019] In the description of the embodiments, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0020] The following further describes the present utility model with reference to the accompanying drawings:

[0021] Embodiment

[0022] Refer to Figures 1-3 , an automatic screen-changing device for PVC shrink film, comprising a fixed seat 1 and a support disk 2, wherein: one side of the fixed seat 1 is fixedly connected to the support disk 2, so as to fixedly install this automatic screen-changing device for PVC shrink film on the PVC shrink film production and processing equipment through the fixed seat 1, and a screen changer is rotatably installed in the fixed seat 1 and the support disk 2, so as to support the screen changer and ensure the stability of the screen changer;

[0023] A discharge hole 3 is penetrated and opened on the fixed seat 1, so as to discharge the filtered PVC shrink film;

[0024] The screen changer includes a motor 4 and a turntable 5, and the motor 4 is fixedly installed outside the support disk 2, so as to drive the turntable 5 to drive the mesh disk 6 to rotate through the motor 4, so that the mesh holes 7 on the mesh disk 6 coincide with the discharge hole 3 to realize automatic screen changing. The circumferential surface of the turntable 5 is fixedly installed with a mesh disk 6; ten mesh holes 7 for installing filter screens are evenly distributed on the surface of the mesh disk 6, so as to provide an installation space for the filter screens and facilitate the replacement of the filter screens in the later stage, and the mesh disk 6 is rotatably installed in the fixed seat 1; the output end of the motor 4 rotates through the support disk 2 and is fixedly connected to the turntable 5; the turntable 5 is rotatably installed in the fixed seat 1 and the support disk 2; the thickness of the turntable 5 is less than the thickness of the mesh disk 6, so as to ensure the sealing between the turntable 5 and the limiting cavity 10, and the sealing between the mesh disk 6 and the chamber 8, and prevent the raw materials from overflowing.

[0025] A chamber 8 is provided inside the fixing base 1 to enable the smooth rotation of the mesh disk 6 in the fixing base 1, so that each mesh hole 7 can be orderly aligned with the discharge hole 3. The chamber 8 is communicated with the discharge hole 3, and the discharge hole 3 and the chamber 8 are vertically arranged; a limiting chamber 10 is provided on one side of the fixing base 1 connected to the support disk 2, and the limiting chamber 10 is communicated with the chamber 8. The width of the limiting chamber 10 is smaller than the width of the chamber 8 to limit the rotating disk 5 and the mesh disk 6 and ensure the stability of the rotating disk 5 and the mesh disk 6 during rotation; the rotating disk 5 is rotatably installed in the chamber 8; a part of the mesh disk 6 is rotatably installed in the limiting chamber 10.

[0026] An annular chamber 11 is provided in the support disk 2 to limit the rotating disk 5 and ensure the stability of the rotating disk 5 during rotation. The annular chamber 11 is communicated with the limiting chamber 10, and a limiting hole 9 is provided through the center of the surface of the support disk 2 to enable the output end of the motor 4 to be fixedly connected to the rotating disk 5 through the limiting hole 9; the rotating disk 5 is rotatably installed in the annular chamber 11, and the rotating disk 5 and the annular chamber 11 are coaxial; the output end of the motor 4 is rotatably installed in the limiting hole 9.

[0027] A connecting hole 12 is provided through the surface of the rotating disk 5 to facilitate the disassembly and assembly of the rotating disk 5 and the motor 4, and the rotating disk 5 is fixedly connected to the output end of the motor 4 through the connecting hole 12.

[0028] It should be noted that the motor 4 is controlled by an external PLC controller.

[0029] In this embodiment, during use, the PVC shrink film automatic screen changing device is fixedly installed on the PVC shrink film production and processing equipment through the fixing base 1, and filters are fixedly installed in each mesh hole 7 in advance; before the PVC shrink film production and processing equipment is started, the motor 4 is used to drive the rotating disk 5 to drive the mesh disk 6 to rotate, so that one of the mesh holes 7 equipped with a filter on the mesh disk 6 is aligned with the discharge hole 3 and stops rotating; thus, the PVC shrink film can be filtered; when the filter in the mesh hole 7 needs to be replaced later, only the motor 4 needs to be used to drive the rotating disk 5 to drive the mesh disk 6 to rotate. At this time, the filter to be replaced will move out of the fixing base 1, and the next mesh hole 7 equipped with a filter on the mesh disk 6 will enter the fixing base 1, be aligned with the discharge hole 3 and stop rotating, so as to achieve the effect of automatic screen changing, and then operate orderly in this way; at this time, the used filter on the mesh disk 6 can be cleaned and replaced, or after all the filters on the entire mesh disk 6 are almost used up, the filters in the mesh holes 7 can be cleaned and replaced centrally; thus, more time can be provided for cleaning and replacing the filters, so it has a higher error tolerance.

[0030] Using the technical solution of the present invention, or those skilled in the art being inspired by the technical solution of the present invention to design a similar technical solution and achieving the above technical effects shall fall within the protection scope of the present invention.

Claims

1. A PVC shrink film automatic screen changing device, characterized by: It comprises a fixed seat (1) and a support plate (2), wherein one side of the fixed seat (1) is fixedly connected to the support plate (2), and a screen changer is rotatably installed in the fixed seat (1) and the support plate (2); The fixing seat (1) is provided with a discharge hole (3); The screen changer comprises a motor (4) and a rotating disk (5), wherein the motor (4) is fixedly mounted outside a supporting disk (2), and a mesh disk (6) is fixedly mounted on the circumferential surface of the rotating disk (5); a plurality of mesh holes (7) for mounting filter screens are evenly distributed on the surface of the mesh disk (6), and the mesh disk (6) is rotatably mounted in a fixed seat (1); an output end of the motor (4) rotates through the supporting disk (2) and is fixedly connected to the rotating disk (5); and the rotating disk (5) is rotatably mounted in the fixed seat (1) and the supporting disk (2).

2. The automatic screen changing device for PVC shrink film according to claim 1, characterized in that: The fixing seat (1) has a chamber (8) disposed inside, and the chamber (8) is communicated with the discharge hole (3); a limiting cavity (10) is disposed on a side where the fixing seat (1) is connected to the support plate (2), and the limiting cavity (10) is communicated with the chamber (8); the rotating plate (5) is rotatably mounted in the chamber (8); and a part of the mesh plate (6) is rotatably mounted in the limiting cavity (10).

3. The automatic screen changing device for PVC shrink film according to claim 2, characterized in that: An annular cavity (11) is provided in the support disk (2), and the annular cavity (11) is communicated with the limiting cavity (10), and a limiting hole (9) is provided through the surface of the support disk (2); the rotating disk (5) is rotatably mounted in the annular cavity (11); and the output end of the motor (4) is rotatably mounted in the limiting hole (9).

4. The automatic screen changing device for PVC shrink film according to claim 3, characterized in that: A connection hole (12) is formed through the surface of the rotating disk (5), and the rotating disk (5) is fixedly connected to the output end of the motor (4) through the connection hole (12).

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