PET sheet surface cleaning device

Abstract

The utility model relates to a PET (polyethylene terephthalate) sheet surface cleaning device in the technical field of PET sheet production, which comprises a shell, a cleaning device and a cleaning device, the plane conveying roller set is horizontally arranged at the position, corresponding to the inner side of the material opening, of the shell; the overturning roller sets are vertically arranged in the middle of an inner cavity of the shell, and the two overturning roller sets are arranged in the length direction of the shell at intervals; the tension on the two side parts in the overturning process of the PET sheet is the same; according to the utility model, through the arrangement of the positions of the two turnover roller groups arranged at intervals and the position of the material port, the tension on the two sides of the PET sheet is uniformly spread, and the stress concentration on one side is avoided, so that the production quality of materials is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to PET sheet production technical field especially relates to a PET sheet surface cleaning device. BACKGROUND

[0002] PET sheet composition mainly includes polyethylene terephthalate PET and polybutylene terephthalate PBT. After production, PET sheet is rolled up, because the existing PET sheet production environment is difficult to achieve dust-free environment, and because the PET sheet area is larger, PET sheet is extruded and easily falls on the PET sheet, which affects the production quality of PET sheet, so the PET sheet surface needs to be cleaned before rolling up.

[0003] The existing Chinese patent with publication number CN218223672U discloses a kind of PET sheet high-efficiency surface treatment equipment, as shown in Figure Figure 1 It is realized that the material is turned over 90° by plane transport roller, turnover roller and cleaning roller, and the cleaning PET sheet operation is realized by the gravity of impurities and cleaning roller.But the device has the same height of inlet and outlet at both ends of the shell, PET sheet bears asymmetric bending stress (PET sheet bears larger bending stress on the same side twice in 0°-90°-0° turnover) in 0°-90°-0° turnover, PET material has certain flexibility and strength, but it is high molecular material, when the tension of side of PET sheet is too large in turnover process, it is easy to cause local deformation, and affect the production quality of PET sheet.

[0004] Therefore, we design a kind of PET sheet surface cleaning device. UTILITY MODEL CONTENT

[0005] In order to overcome the deficiencies in the background art, the utility model discloses a kind of PET sheet surface cleaning device.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0007] A kind of PET sheet surface cleaning device, comprising:

[0008] The shell is provided with a material port in the middle of both end faces;

[0009] The plane transport roller group is horizontally arranged inside the corresponding material port of the shell;

[0010] The turnover roller group is vertically arranged in the middle of the inner cavity of the shell, and the turnover roller group is spaced apart into two groups along the length direction of the shell; so that the tension on both sides during the turnover of the PET sheet is the same.

[0011] Further, the turnover roller group comprises a chute track horizontally arranged on the bottom surface of the inner cavity of the shell, and two position-adjustable adjusting blocks are arranged in the chute track, and a vertical turnover roller is rotatably connected to the top of each adjusting block.

[0012] Further, the chute track is provided with a bidirectional screw along the length direction thereof, and the two threaded portions of the bidirectional screw are threadedly matched with the two adjusting blocks respectively, and the distance between the two adjusting blocks is adjusted by rotating the bidirectional screw.

[0013] Further, a supporting roller is arranged between the two turnover roller groups to support the vertical area of the PET sheet.

[0014] Further, the supporting roller is arranged at least two in number along the length direction of the shell.

[0015] Further, the inner cavity of the shell is also provided with a cleaning assembly at the position between the two turnover roller groups.

[0016] Further, the cleaning assembly comprises a dust suction nozzle and a fan connected to the dust suction nozzle.

[0017] Further, the dust suction nozzle is arranged in two and symmetrically arranged on the two sides of the vertical area of the PET sheet.

[0018] Further, the dust suction port of the dust suction nozzle is arranged in an inclined manner, and the lower end is located on the front side of the upper end.

[0019] Compared with the prior art, the beneficial effects of the present application are:

[0020] 1. The two groups of turnover roller groups arranged at intervals and the position of the material port are arranged to evenly distribute the tension on both sides of the PET sheet, avoiding unilateral stress concentration, thereby ensuring the production quality of the material.

[0021] 2. The chute track and the bidirectional screw adjust the distance between the turnover rollers to quickly adapt to the needs of different PET sheet thicknesses.

[0022] 3. The symmetrical arrangement of the dust suction nozzle and the fan can adsorb impurities through airflow, avoiding damage to the material caused by mechanical contact, and improving cleaning efficiency through the inclined dust suction port design. In addition, the symmetrical arrangement of the dust suction nozzle ensures balanced airflow impact and prevents the PET sheet from shifting.

[0023] 4. The supporting roller arranged between the two turnover roller groups effectively supports the vertical area of the PET sheet, avoiding sagging and uneven tension caused by gravity, and also improving the stability of the cleaning process. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 The prior art structure is shown in the figure;

[0025] Figure 2 This is a schematic diagram of the structure of this utility model;

[0026] Figure 3 This is a schematic diagram of the internal structure of the outer shell in this utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the tilting roller group and the support roller in this utility model;

[0028] Figure 5 This is a cross-sectional view of the tilting roller assembly in this utility model;

[0029] Figure 6 This is a cross-sectional view of another structure of the reversing roller assembly in this utility model.

[0030] In the diagram: 1. Outer shell; 11. Feed inlet; 2. Flat conveyor roller assembly; 3. Tilting roller assembly; 31. Slide rail; 32. Adjusting block; 33. Tilting roller; 34. Bidirectional screw; 4. Support roller; 5. Cleaning assembly; 51. Dust suction nozzle; 52. Fan. Detailed Implementation

[0031] The present invention will be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if terms such as "upper", "lower", "front", "rear", "left", "right" indicate orientation or positional relationship, they are only corresponding to the drawings of this application for the convenience of describing the present invention. It should be understood that if terms such as "end", "side", "end portion", "side part", "lateral", "longitudinal", etc. indicate orientation or positional relationship, they are only corresponding to the length and width of the corresponding component. That is, "end" indicates the head and tail area in the length direction of the corresponding component, and "side part" indicates the head and tail area in the width direction of the corresponding component. They are used for the convenience of describing the present invention and do not indicate or imply that the device or element referred to must have a specific orientation.

[0032] Combined with appendix Figures 2-6 A PET sheet surface cleaning device, comprising:

[0033] The outer casing 1 has a feed port 11 at the middle of both end faces; specifically, the feed port 11 is located at the middle position of the vertical and horizontal directions of the end faces of the outer casing 1.

[0034] The planar transport roller group 2 is horizontally arranged inside the outer casing 1 corresponding to the material inlet 11;

[0035] It should be noted that the outer shell 1, the feed inlet 11, and the planar transport roller group 2 all adopt the existing structure and assembly method, which will not be described in detail here.

[0036] The turnover roller group 3 is vertically arranged in the middle of the inner cavity of the shell 1, and the turnover roller group 3 is arranged in two groups along the length direction of the shell 1, so that the tension on both sides of the PET sheet during the turnover process is the same. Specifically, the turnover roller group 3 is located in the middle of the horizontal and vertical directions of the inner cavity of the shell 1.

[0037] Since the material port 11 is located in the middle of the end surface of the shell 1, the planar conveying roller group 2 is located inside the material port 11, and the turnover roller group 3 is located in the middle of the inner cavity of the shell 1, so that the midpoint of the turnover roller group 3 and the center of the planar conveying roller group 2 are located on the central axis of the shell 1. Therefore, during the turnover process of the PET sheet, one side of the PET sheet moves downward to the bottom of the turnover roller group 3, and the other side moves upward to the top of the turnover roller group 3, so that both sides of the PET sheet are subjected to tension. Compared with the prior art, by sharing the tension on both sides of the PET sheet, the condition that one side of the PET sheet is subjected to excessive tension and locally deformed can be effectively avoided.

[0038] Further, in order to better adapt to PET sheets of different thicknesses, the turnover roller group 3 is arranged in the inner cavity of the shell 1. Figures 5-6 The turnover roller group 3 includes a chute track 31 horizontally arranged on the bottom surface of the inner cavity of the shell 1, and the chute track 31 is provided with two position-adjustable adjusting blocks 32 at intervals in the groove cavity. Each adjusting block 32 is rotatably connected to a vertically arranged turnover roller 33 at the top.

[0039] Further, in order to better adapt to PET sheets of different thicknesses, the turnover roller group 3 is arranged in the inner cavity of the shell 1. Figure 5 The chute track 31 is provided with a bidirectional screw 34 along the length direction thereof, and the two threaded portions of the bidirectional screw 34 are respectively threadedly connected to the two adjusting blocks 32, so as to adjust the distance between the two adjusting blocks 32 by rotating the bidirectional screw 34.

[0040] In this way, the two adjusting blocks 32 can be moved relative to or away from each other by rotating the bidirectional screw 34, so as to adjust the distance between the two adjusting blocks 32.

[0041] According to the needs, the turnover roller 33 can be passively rotated, or can be actively rotated by using a motor in the prior art. When the motor is used, the driving connection mode of the upper and lower rolling rollers in a rolling mill can be referred to for design, which will not be described in detail here.

[0042] In other embodiments, in combination with the above Figure 6 The distance between the two adjusting blocks 32 can be adjusted according to the thickness of the PET sheet by arranging a compression spring between the outer wall of the adjusting block 32 and the end of the corresponding chute track 31 instead of the bidirectional screw 34, and the adjusting block 32 is pressed by the elastic potential energy of the compression spring.

[0043] Further, in order to prevent the PET sheet from sagging, and to increase the tension received by the lower side of the vertical region of the PET sheet, according to a possible embodiment, as shown in Figure 4 Support rollers 4 are arranged between the two groups of reversing rollers 3 to support the vertical region of the PET sheet. If necessary, at least two support rollers 4 are arranged along the length direction of the shell 1.

[0044] Further, in order to improve the cleaning effect, according to a possible embodiment, as shown in Figure 3 The inner cavity of the shell 1 is also provided with a cleaning assembly 5 between the two groups of reversing rollers 3.

[0045] In the present embodiment, two support rollers 4 are arranged near the reversing roller groups 3, so that the distance between the two support rollers 4 is increased to provide sufficient space for the installation of the cleaning assembly 5.

[0046] Further, the cleaning assembly 5 comprises a dust suction nozzle 51 and a fan 52 connected thereto.

[0047] If necessary, the dust suction nozzle 51 has two and is symmetrically arranged on both sides of the vertical region of the PET sheet. In this way, the impact of the air flow on both sides of the PET sheet is balanced, and uneven floating of the PET sheet is prevented.

[0048] If necessary, the fan 52 can be provided with only one. That is, the two dust suction nozzles 51 are connected to the same fan 52, so that the influence of the two dust suction nozzles 51 on the PET sheet is the same, and the balance of the impact of the air flow on both sides of the PET sheet is ensured.

[0049] If necessary, a filter box can be arranged between the fan 52 and the dust suction nozzle 51 to filter the impurities sucked in. Specifically, the fan 52 and the filter box are arranged on both sides of the middle of the length direction of the inner cavity of the shell 1, that is, on both sides of the vertical region of the PET sheet.

[0050] If necessary, the dust suction port of the dust suction nozzle 51 is arranged in an upward and downward inclined manner, and the lower end is located on the front side of the upper end. That is, as shown in Figure 3 The PET sheet is transmitted from left to right, and the upper end of the dust suction nozzle 51 is located on the right side of the lower end.

[0051] In the example, the fan 52 is a centrifugal fan with a wind volume of 800-1200 m³ / h.

[0052] The utility model discloses the part of not detailed is prior art, for the person skilled in the art, apparently the utility model is not limited to the details of the above exemplary embodiments, and can realize the utility model with other specific forms without departing from the spirit or basic characteristics of the utility model, therefore, no matter from which point, should be regarded as exemplary, and is non-restrictive, the range of the utility model is defined by the appended claims instead of the above description, therefore, all changes falling in the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model, any reference signs in the claims should not be regarded as limiting the content of the claim involved.

Claims

1. A PET sheet surface cleaning device characterized by, Include: The shell (1) is provided with a material port (11) in the middle of both end faces; The flat conveying roller group (2) is horizontally arranged inside the corresponding material port (11) of the shell (1); The turnover roller group (3) is vertically arranged in the middle of the inner cavity of the shell (1), and the turnover roller group (3) is arranged in two groups along the length direction of the shell (1) to facilitate the PET sheet to have the same tension on both sides during the turnover process.

2. The PET sheet surface cleaning device according to claim 1, characterized by: The turnover roller group (3) includes a chute track (31) transversely arranged on the bottom surface of the inner cavity of the shell (1), and the chute track (31) is provided with two position-adjustable adjusting blocks (32) in the groove cavity, and each adjusting block (32) is rotatably connected with a vertical turnover roller (33) on the top.

3. A PET sheet surface cleaning device according to claim 2, characterized in that: The chute track (31) is provided with a bidirectional screw (34) along the length direction, and the two threaded parts of the bidirectional screw (34) are respectively threadedly connected with the two adjusting blocks (32), and the distance between the two adjusting blocks (32) is adjusted by rotating the bidirectional screw (34).

4. The PET sheet surface cleaning device according to claim 1, characterized by: Support rollers (4) are arranged between the two groups of turnover roller groups (3) to support the vertical area of the PET sheet.

5. A PET sheet surface cleaning device according to claim 4, characterized in that: The support roller (4) is arranged at least two intervals along the length direction of the shell (1).

6. A PET sheet surface cleaning device according to any one of claims 1-5, characterized in that: The inner cavity of the shell (1) is also provided with a cleaning assembly (5) between the two groups of turnover roller groups (3).

7. A PET sheet surface cleaning device according to claim 6, characterized in that: The cleaning assembly (5) includes a dust suction nozzle (51) and a fan (52) connected thereto.

8. A PET sheet surface cleaning device according to claim 7, characterized by: The dust suction nozzle (51) has two and is symmetrically arranged on both sides of the vertical area of the PET sheet.

9. The PET sheet surface cleaning device according to claim 7, characterized by: The dust suction port of the dust suction nozzle (51) is inclined upward and downward, and the lower end is located on the front side of the upper end.

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