PET protective film coating and drying device

Abstract

The utility model relates to the technical field of PET (Polyethylene Terephthalate) protective film processing equipment, and particularly discloses a PET protective film coating and drying device which comprises a bottom plate, a drying cylinder is arranged at the top of the bottom plate, a plurality of stainless steel electric heating pipes are annularly arranged on the inner wall of the drying cylinder, two strip-shaped openings are formed in the outer wall of the drying cylinder, and the strip-shaped openings are communicated with the bottom plate. A first winding drum and a second winding drum are rotationally mounted at the top of the bottom plate, the first winding drum is located above the second winding drum, and a tensioning winding drum is rotationally mounted in the drying drum. According to the utility model, the tensioning winding drum, the first winding drum and the second winding drum are used for pulling the PET protective film coated with the glue, so that the PET protective film coated with the glue can be pulled and straightened, and the PET protective film coated with the glue can be dried in a straightened state; therefore, the problem that the PET protective film coated with the glue is unevenly and thoroughly dried due to wrinkles is avoided, and the PET protective film coated with the glue can be dried in a straightened state.

Description

TECHNICAL FIELD

[0001] The utility model relates to PET protective film processing equipment technical field especially relates to a PET protective film coating drying device. BACKGROUND

[0002] PET protective film is coated with different viscosity glue on PET material, and is divided into high-stick, medium-stick and low-stick three kinds; it has the adhesion protection effect, and the use range is to be die cut into different product shapes after being pasted with release film or release paper, and can be transferred to other products such as mobile phones, computers and the like after tearing off the auxiliary material, thereby playing the role of screen protection.

[0003] After searching, it is found that the Chinese patent with application No. 202121849266.5 discloses a PET protective film coating drying device, which comprises a drying box, a rack and a flexible hose, the drying box is provided with through holes at the left and right ends, a protective film is arranged in the drying box, and the left and right ends of the protective film penetrate through the through holes, a plurality of connecting pipes are arranged on the upper and lower sides of the protective film, a horizontal pipe is arranged at the rear end of the connecting pipe, and a connecting block is symmetrically arranged at the lower end of the horizontal pipe; but the PET protective film coating drying device has the problems that the PET protective film coated with glue is difficult to dry in a taut state, and if the PET protective film coated with glue has wrinkles, the glue on the PET protective film coated with glue will not be completely dried, therefore, in order to solve such problems, a PET protective film coating drying device is provided. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art and provides a PET protective film coating drying device.

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

[0006] A PET protective film coating drying device, comprising a bottom plate, a drying cylinder is installed on the top of the bottom plate, a plurality of stainless steel electric heating pipes are annularly installed on the inner wall of the drying cylinder, two strip-shaped openings are formed in the outer wall of the drying cylinder, a first winding drum and a second winding drum are rotatably installed on the top of the bottom plate, the first winding drum is located above the second winding drum, and a tension winding drum is rotatably installed in the drying cylinder.

[0007] Preferably, third bearings are installed on the inner walls of the two sides of the drying cylinder, a third installation shaft is rotatably installed between the two third bearings, and the tension winding drum is fixedly sleeved on the outer wall of the third installation shaft.

[0008] Preferably, the first motor is installed on one side of the first fixed plate away from the second fixed plate, and the output shaft of the first motor penetrates the first fixed plate and is connected with the first winding drum.

[0009] Preferably, the output shaft of the first motor penetrates the first fixed plate and is connected with the first mounting shaft, the first winding drum is fixedly sleeved on the outer wall of the first mounting shaft, the first bearing is installed on one side of the second fixed plate close to the first winding drum, and the end portion of the first mounting shaft is installed in the inner ring of the first bearing.

[0010] Preferably, the second motor is installed on one side of the third fixed plate away from the fourth fixed plate, and the output shaft of the second motor penetrates the third fixed plate and is connected with the second winding drum.

[0011] Preferably, the output shaft of the second motor penetrates the third fixed plate and is connected with the second mounting shaft, the second winding drum is fixedly sleeved on the outer wall of the second mounting shaft, the second bearing is installed on one side of the fourth fixed plate close to the second winding drum, and the end portion of the second mounting shaft is installed in the inner ring of the second bearing.

[0012] Preferably, a plurality of fan-shaped grooves are formed in the inner wall of the drying drum, and a plurality of stainless steel electric heating pipes are installed in the plurality of fan-shaped grooves respectively.

[0013] Preferably, the bearing plate is installed at the bottom of the outer wall of the drying drum, the support plate is installed at the top of the bottom plate, the support plate is fixedly connected to the bottom of the bearing plate, and two groups of mounting holes are symmetrically formed in the top of the bottom plate.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1: In the utility model, the PET protective film coated with glue is stretched and straightened by the tensioning winding drum, the first winding drum and the second winding drum, so that the PET protective film coated with glue can be dried in a straightened state, thereby avoiding the problem that the PET protective film coated with glue is unevenly and incompletely dried due to wrinkles, and the PET protective film coated with glue can be dried in a straightened state.

[0016] 2: In the utility model, the PET protective film is stretched and straightened by the first winding drum, the second winding drum and the tensioning winding drum before drying treatment, so that the PET protective film is coated with glue, and the step of coating glue on the PET protective film and drying treatment after coating glue is integrated, the production efficiency of the PET protective film is improved, and the steps of coating glue on the PET protective film and drying treatment after coating glue can be performed simultaneously. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A first perspective view of the structure of the PET protective film coating and drying device according to the present application is shown in the figure.

[0018] Figure 2 A second perspective view of the structure of the PET protective film coating and drying device according to the present application is shown in the figure.

[0019] Figure 3 A third perspective view of the structure of the PET protective film coating and drying device according to the present application is shown in the figure.

[0020] Figure 4 A connection diagram of the bottom plate and the first fixed plate of the PET protective film coating and drying device according to the present application is shown in the figure.

[0021] Figure 5 A connection diagram of the drying cylinder and the stainless steel electric heating pipe of the PET protective film coating and drying device according to the present application is shown in the figure.

[0022] Figure 6 A partial sectional view of the drying cylinder of the PET protective film coating and drying device according to the present application is shown in the figure.

[0023] In the figure: 1, bottom plate; 2, mounting hole; 3, first fixed plate; 4, second fixed plate; 5, first motor; 6, first mounting shaft; 7, first winding drum; 8, first bearing; 9, third fixed plate; 10, fourth fixed plate; 11, second motor; 12, second mounting shaft; 13, second winding drum; 14, second bearing; 15, support plate; 16, bearing plate; 17, drying cylinder; 18, strip-shaped opening; 19, third bearing; 20, third mounting shaft; 21, tension winding drum; 22, stainless steel electric heating pipe; 23, fan-shaped groove. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0025] Referring to Figures 1-6 A PET protective film coating and drying device, comprising a bottom plate 1, a drying cylinder 17 is mounted on the top of the bottom plate 1, a plurality of stainless steel electric heating pipes 22 are annularly mounted on the inner wall of the drying cylinder 17, two strip-shaped openings 18 are formed on the outer wall of the drying cylinder 17, a first winding drum 7 and a second winding drum 13 are rotatably mounted on the top of the bottom plate 1, the first winding drum 7 is located above the second winding drum 13, and a tension winding drum 21 is rotatably mounted in the drying cylinder 17.

[0026] As a technical optimization scheme of the utility model, the third bearing 19 is installed on the inner wall of both sides of the drying cylinder 17, the third installation shaft 20 is rotatably installed between the two third bearings 19, and the tension winding drum 21 is fixedly sleeved on the outer wall of the third installation shaft 20.

[0027] As a technical optimization scheme of the utility model, the first fixed plate 3 and the second fixed plate 4 are symmetrically installed on the top of the bottom plate 1, the first motor 5 is installed on the side of the first fixed plate 3 away from the second fixed plate 4, and the output shaft of the first motor 5 penetrates the first fixed plate 3 and is connected with the first winding drum 7.

[0028] As a technical optimization scheme of the utility model, the output shaft of the first motor 5 penetrates the first fixed plate 3 and is connected with the first installation shaft 6, the first winding drum 7 is fixedly sleeved on the outer wall of the first installation shaft 6, the first bearing 8 is installed on the side of the second fixed plate 4 close to the first winding drum 7, and the end of the first installation shaft 6 is installed in the inner ring of the first bearing 8.

[0029] As a technical optimization scheme of the utility model, the third fixed plate 9 and the fourth fixed plate 10 are symmetrically installed on the top of the bottom plate 1, the second motor 11 is installed on the side of the third fixed plate 9 away from the fourth fixed plate 10, and the output shaft of the second motor 11 penetrates the third fixed plate 9 and is connected with the second winding drum 13.

[0030] As a technical optimization scheme of the utility model, the output shaft of the second motor 11 penetrates the third fixed plate 9 and is connected with the second installation shaft 12, the second winding drum 13 is fixedly sleeved on the outer wall of the second installation shaft 12, the second bearing 14 is installed on the side of the fourth fixed plate 10 close to the second winding drum 13, and the end of the second installation shaft 12 is installed in the inner ring of the second bearing 14.

[0031] As a technical optimization scheme of the utility model, the inner wall of the drying cylinder 17 is provided with a plurality of fan-shaped grooves 23, and a plurality of stainless steel electric heating pipes 22 are installed in the plurality of fan-shaped grooves 23.

[0032] As a technical optimization scheme of the utility model, the bottom of the outer wall of the drying cylinder 17 is provided with a bearing plate 16, the top of the bottom plate 1 is provided with a supporting plate 15, the top of the supporting plate 15 is fixedly connected to the bottom of the bearing plate 16, and two groups of mounting holes 2 are symmetrically formed in the top of the bottom plate 1. Through the cooperation of the bearing plate 16 and the supporting plate 15, the drying cylinder 17 can be supported, the mounting holes 2 can be used to fix the bottom plate 1, and then the device can be fixed.

[0033] When the PET protective film coated with glue needs to be dried, first, the PET protective film without glue is wound on the first winding drum 7, the end of the PET protective film is inserted into the drying cylinder 17 through the strip-shaped hole 18 located above, the PET protective film is wound around the tension winding drum 21, and the end of the PET protective film is inserted into the drying cylinder 17 through the strip-shaped hole 18 located below and wound on the second winding drum 13.

[0034] At this time, the PET protective film between the first winding drum 7 and the drying cylinder 17 is exposed, and the PET protective film without glue at this position can be coated with glue. At the same time, the first motor 5 and the second motor 11 are started, the output shaft of the first motor 5 drives the first winding drum 7 to rotate to loosen the PET protective film wound on the first winding drum 7, and the second motor 11 rotates to drive the second winding drum 13 to rotate, so that the PET protective film is wound on the second winding drum 13. When the PET protective film coated with glue enters the drying cylinder 17, the stainless steel electric heating pipe 22 is started, the stainless steel electric heating pipe 22 heats the air in the drying cylinder 17, the air heated by the stainless steel electric heating pipe 22 dries the PET protective film coated with glue, and the drying process of the PET protective film coated with glue is completed. The PET protective film coated with glue is pulled and straightened by the tension winding drum 21, the first winding drum 7 and the second winding drum 13, so that the PET protective film coated with glue is pulled and straightened, the PET protective film coated with glue is dried in a straightened state, and the problem of uneven and incomplete drying of the PET protective film coated with glue due to wrinkles is avoided.

[0035] Before the PET protective film coated with glue is dried, the PET protective film is pulled and straightened by the first winding drum 7, the second winding drum 13 and the tension winding drum 21, which facilitates the coating of glue on the PET protective film. The coating of glue on the PET protective film and the drying process of the PET protective film coated with glue are integrated into one step, the production efficiency of the PET protective film is improved, and the coating of glue on the PET protective film and the drying process of the PET protective film coated with glue can be performed simultaneously.

[0036] And the stainless steel electric heating pipe 22 in the device is in the drying cylinder 17, the stainless steel electric heating pipe 22 heats the air in the drying cylinder 17, the heated air is used to dry the PET protective film coated with glue, the heated air is temporarily stopped in the drying cylinder 17 and is blocked by the drying cylinder 17, the heated air can be used to continuously dry the PET protective film coated with glue, and the energy utilization rate is improved.

[0037] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A PET protective film coating and drying device comprising a base plate (1), characterized in that, The bottom plate (1) top is provided with a drying cylinder (17), the inner wall of the drying cylinder (17) is provided with a plurality of stainless steel electric heating pipes (22), the outer wall of the drying cylinder (17) is provided with two strip-shaped openings (18), the bottom plate (1) top is rotatably provided with a first winding drum (7) and a second winding drum (13), the first winding drum (7) is located above the second winding drum (13), and the drying cylinder (17) is rotatably provided with a tensioning winding drum (21).

2. The PET protective film coating and drying apparatus according to claim 1, wherein The inner wall of the drying cylinder (17) is provided with a third bearing (19) on both sides, and the third bearing (19) is rotatably provided between the two third bearings (19). The third mounting shaft (20) is fixedly sleeved on the outer wall of the third mounting shaft (20).

3. The PET protective film coating and drying apparatus according to claim 1, characterized in that, The bottom plate (1) top is provided with a first fixed plate (3) and a second fixed plate (4), the first fixed plate (3) is provided with a first motor (5) away from the second fixed plate (4), and the output shaft of the first motor (5) penetrates the first fixed plate (3) and is connected with the first winding drum (7).

4. The PET protective film coating and drying apparatus according to claim 3, characterized in that, The output shaft of the first motor (5) penetrates the first fixed plate (3) and is connected with the first mounting shaft (6), the first winding drum (7) is fixedly sleeved on the outer wall of the first mounting shaft (6), the first bearing (8) is installed on the side of the second fixed plate (4) close to the first winding drum (7), and the first mounting shaft (6) is installed in the inner ring of the first bearing (8).

5. The PET protective film coating and drying apparatus according to claim 1, wherein The bottom plate (1) top is provided with a third fixed plate (9) and a fourth fixed plate (10), the third fixed plate (9) is provided with a second motor (11) away from the fourth fixed plate (10), and the output shaft of the second motor (11) penetrates the third fixed plate (9) and is connected with the second winding drum (13).

6. The PET protective film coating and drying apparatus according to claim 5, wherein The output shaft of the second motor (11) penetrates the third fixed plate (9) and is connected with the second mounting shaft (12), the second winding drum (13) is fixedly sleeved on the outer wall of the second mounting shaft (12), the second bearing (14) is installed on the side of the fourth fixed plate (10) close to the second winding drum (13), and the second mounting shaft (12) is installed in the inner ring of the second bearing (14).

7. The PET protective film coating and drying apparatus according to claim 1, wherein The inner wall of the drying cylinder (17) is provided with a plurality of fan-shaped grooves (23), and the plurality of stainless steel electric heating pipes (22) are respectively installed in the plurality of fan-shaped grooves (23).

8. The PET protective film coating and drying apparatus according to claim 1, wherein The outer wall of the drying cylinder (17) is provided with a bearing plate (16), the bottom plate (1) top is provided with a supporting plate (15), the supporting plate (15) top is fixedly connected with the bottom of the bearing plate (16), and the bottom plate (1) top is symmetrically provided with two groups of mounting holes (2).

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