PP sheet laminating device

Abstract

The utility model relates to the technical field of PP (polypropylene) sheet processing, in particular to a PP sheet laminating device which comprises a conveying part, a blowing and removing mechanism, a laminating mechanism and a supporting plate, the blowing and removing mechanism comprises a plurality of nozzles, the nozzles are sequentially distributed along the conveying direction of PP sheets and are obliquely arranged, the nozzles are used for spraying high-pressure gas, and the supporting plate is used for supporting the PP sheets. The blowing and removing mechanism is located above the conveying part and acts on the surface of the PP sheet so as to remove dust and particulate matter on the surface of the PP sheet, and the film covering mechanism is located above the conveying part, located on one side of the blowing and removing mechanism and used for installing a film and covering the PP sheet with the film. Dust and particulate matter attached to the surface of a PP sheet are removed through the nozzles in a blowing mode so as to ensure that the surface of the PP sheet after film covering cannot be scratched, and meanwhile the multiple obliquely-arranged nozzles can blow the dust and particulate matter attached to the PP sheet from the middle position of the PP sheet to the edge position of the PP sheet and finally blow off the PP sheet.

Description

Technical Field

[0001] This utility model relates to the field of PP sheet processing technology, and in particular to a PP sheet coating device. Background Technology

[0002] PP sheets (polypropylene sheets) are sheet materials made from polypropylene as the main raw material through processes such as extrusion and calendering. They possess excellent physical properties, chemical stability, and processing performance, and are widely used in packaging, construction, automotive, electronics, medical, and other fields. To improve the surface properties, barrier properties, and heat-sealing properties of PP sheets, a functional film is often coated onto the surface. Therefore, we urgently need a PP sheet coating device.

[0003] Currently, when laminating PP sheets, a motor drives a guide roller to move the PP sheet to the film roller. The film is then applied to the surface of the PP sheet by rotating the film roller. However, during the conveying process of the PP sheet, dust and particles will adhere to its surface. If these dust and particles are not cleaned before laminating, the surface of the PP sheet will be scratched. Utility Model Content

[0004] In response to the shortcomings of the existing production technology, the applicant provides a PP sheet coating device. By improving the structure of the PP sheet coating device, dust and particulate matter attached to the surface of the PP sheet can be removed to ensure that the surface of the coated PP sheet will not be scratched.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A PP sheet coating device includes: a conveying section, a blowing and cleaning mechanism, a coating mechanism, and a support plate. The conveying section is used to carry and convey PP sheets. The blowing and cleaning mechanism is located above the conveying section and includes multiple nozzles arranged sequentially along the conveying direction of the PP sheets and at an angle. The nozzles are used to spray high-pressure gas onto the surface of the PP sheets to remove dust and particulate matter. The coating mechanism is located above the conveying section and to one side of the blowing and cleaning mechanism. The coating mechanism is used to install a film and coat the film onto the PP sheets. The support plate is located above the blowing and cleaning mechanism and the coating mechanism, and both the blowing and cleaning mechanism and the coating mechanism are connected to the support plate. The support plate is connected to the conveying section.

[0007] Therefore, the dust and particles adhering to the surface of the PP sheet are removed by blowing air through the nozzles, ensuring that the surface of the PP sheet will not be scratched after lamination. At the same time, multiple tilted nozzles can blow the dust and particles adhering to the PP sheet from the middle of the PP sheet to the edge, and finally blow them off. In addition, compared with the cleaning method, blowing dust and particles can ensure that no scratches are left on the surface of the PP sheet, further ensuring that the surface of the PP sheet will not be scratched after lamination.

[0008] As a further improvement to the above technical solution: the blowing and cleaning mechanism further includes: multiple connecting pipes and a first fixing block, wherein each connecting pipe corresponds to a nozzle, the nozzle is mounted on the first fixing block, and the first fixing block is connected to the support plate.

[0009] As a further improvement to the above technical solution: two air-blowing cleaning mechanisms are provided, symmetrically arranged about the center line of the PP sheet. Therefore, the two air-blowing cleaning mechanisms can blow dust and particles adhering to the surface of the PP sheet from the center to the two edges, shortening the movement path of the dust and particles, thereby improving the cleaning of dust and particles from the PP sheet. At the same time, shortening the movement path further ensures that the surface of the laminated PP sheet will not be scratched.

[0010] As a further improvement to the above technical solution: the coating mechanism includes: a support part, a tension roller and a coating roller arranged sequentially along the PP sheet conveying direction, the support part is used to install the film, the tension roller tensions the film, and the coating roller is used for coating the PP sheet.

[0011] As a further improvement to the above technical solution: A first connecting rod is rotatably connected to both sides of the tensioning roller, and the first connecting rod is connected to the support plate; a first driving member and a second fixing block are provided at both ends of the coating roller, the coating roller is rotatably connected to the second fixing block, the telescopic end of the first driving member is connected to the second fixing block, and the first driving member is connected to the support plate. Thus, the tensioning roller ensures that the film remains taut at all times, preventing wrinkles, thereby ensuring that the surface of the coated PP sheet is wrinkle-free and improving the coating effect of the PP sheet.

[0012] As a further improvement to the above technical solution: the support portion includes two support units, which are symmetrically arranged about the center line of the PP sheet, and the two PP sheets are used together to mount the film. Thus, the film is mounted by the opposing or relative movement of the two support units, facilitating subsequent lamination of the PP sheet.

[0013] As a further improvement to the above technical solution: the support unit includes a second connecting rod and a first threaded rod. The second connecting rod is connected to the first threaded rod, and the first threaded rod is threadedly connected to the support plate. The first threaded rod is used to drive the second connecting rod to move towards or away from the PP sheet. Thus, by rotating the first threaded rod, the second connecting rod is moved, causing the two support units to move towards each other or relative to each other.

[0014] As a further improvement to the above technical solution, the coating mechanism further includes a pressing block and two second threaded rods. The pressing block is connected to the second threaded rods, and the second threaded rods are threadedly connected to the second connecting rod. The second threaded rods are used to drive the pressing block to move closer to or further away from the film. Thus, after each coating is completed, the second threaded rods are rotated to ensure the pressing block is in close contact with the film, thereby ensuring the film does not fly off and securing the film after coating.

[0015] As a further improvement to the above technical solution, it also includes a cutting mechanism located on the side of the laminating mechanism away from the blowing and cleaning mechanism. The cutting mechanism includes a second driving member and a cutting blade. The second driving member is connected to the support plate, and its telescopic end is connected to the cutting blade. The second driving member drives the cutting blade downwards to cut the laminated film. Thus, by driving the cutting blade downwards via the second driving member, the film is cut to separate the film attached to the PP sheet from the film mounted on the support, facilitating the removal of the laminated PP sheet.

[0016] As a further improvement to the above technical solution, it also includes: a frame, the conveying unit being connected to the frame, the frame being positioned relative to the coating mechanism and having a slag discharge port; the support plate being connected to the conveying unit via a support rod. Thus, dust and particulate matter blown onto the conveying unit are discharged through the slag discharge port.

[0017] The beneficial effects of this utility model are as follows:

[0018] The nozzles use airflow to remove dust and particles adhering to the surface of the PP sheet, ensuring that the surface of the laminated PP sheet will not be scratched. At the same time, multiple angled nozzles can blow the dust and particles adhering to the PP sheet from the center to the edge and eventually blow them off. In addition, compared with sweeping, the method of removing dust and particles by airflow can ensure that no scratches are left on the surface of the PP sheet, further ensuring that the surface of the laminated PP sheet will not be scratched.

[0019] This utility model also has the following advantages:

[0020] 1. The two blowing removal mechanisms of this utility model can blow the dust and particles attached to the surface of the PP sheet from the middle position of the PP sheet to the two side edges, thereby shortening the movement path of the dust and particles and improving the cleaning of dust and particles on the PP sheet. At the same time, shortening the movement path can further ensure that the surface of the PP sheet after lamination will not be scratched.

[0021] 2. This utility model uses a tensioning roller to ensure that the film is always kept taut and will not wrinkle. In this way, the surface of the coated PP sheet will not wrinkle, thereby improving the coating effect of the PP sheet.

[0022] 3. After each film coating is completed, the second threaded rod is rotated to make the clamping block fit tightly against the film, thus ensuring that the film will not fly out and fixing the film after film coating is completed. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the PP sheet coating device of this utility model;

[0024] Figure 2 This is a cross-sectional view of the PP sheet coating device of this utility model;

[0025] Figure 3 This is a schematic diagram of the air blowing and cleaning mechanism of this utility model;

[0026] Figure 4 This is a bottom view of the air-blowing cleaning mechanism of this utility model;

[0027] Figure 5 This is a schematic diagram of the coating mechanism of this utility model;

[0028] Figure 6 This is a schematic diagram of the structure of the support part of this utility model;

[0029] Figure 7 This is a schematic diagram of the cutting mechanism of this utility model.

[0030] Among them: 1. Conveying section;

[0031] 2. Air blowing and cleaning mechanism;

[0032] 201. Nozzle; 202. Connecting pipe; 203. First fixing block;

[0033] 3. Lamination mechanism;

[0034] 301, Support part; 3011, Support unit; 3012, Second connecting rod; 3013, First threaded rod; 302, Tensioning roller; 303, Coating roller; 304, First connecting rod; 305, First driving component; 306, Second fixing block; 307, Pressing block; 308, Second threaded rod;

[0035] 4. Support plate; 401. Support rod;

[0036] 5. Cutting mechanism;

[0037] 501. Second drive component; 502. Cutting blade;

[0038] 6. Rack;

[0039] 601. Slag discharge port. Detailed Implementation

[0040] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0041] like Figures 1 to 7 The diagram shows the preferred embodiment of this utility model. The PP sheet coating device of this embodiment includes: a conveying section 1, a blowing and cleaning mechanism 2, a coating mechanism 3, and a support plate 4. The conveying section 1 is used to carry and convey PP sheets. The blowing and cleaning mechanism 2 is located above the conveying section 1 and includes: multiple nozzles 201. The multiple nozzles 201 are distributed sequentially along the conveying direction of the PP sheet and are inclined. The nozzles 201 are used to spray high-pressure gas and act on the surface of the PP sheet to remove dust and particles from the surface of the PP sheet. The coating mechanism 3 is located above the conveying section 1 and is located on one side of the blowing and cleaning mechanism 2. The coating mechanism 3 is used to install a film and coat the film onto the PP sheet. The support plate 4 is located above the blowing and cleaning mechanism 2 and the coating mechanism 3, and the blowing and cleaning mechanism 2 and the coating mechanism 3 are both connected to the support plate 4. The support plate 4 is connected to the conveying section 1. Therefore, the nozzles 201 remove dust and particles adhering to the surface of the PP sheet by blowing air, ensuring that the surface of the PP sheet will not be scratched after lamination. At the same time, the multiple inclined nozzles 201 can blow the dust and particles adhering to the PP sheet from the middle of the PP sheet to the edge, and finally blow them off. In addition, compared with the cleaning method, the method of removing dust and particles by blowing air can ensure that no scratches are left on the surface of the PP sheet, thus further ensuring that the surface of the PP sheet will not be scratched after lamination.

[0042] It should be noted that: such as Figure 4As shown, the multiple nozzles 201 are arranged at an angle, which means: First, the outlet end of the nozzle 201 is angled toward the PP sheet so that the high-pressure gas ejected from the nozzle 201 acts on the PP sheet. Second, the nozzles 201 of the two blowing cleaning mechanisms 2 are distributed in a figure-eight shape along the conveying direction of the PP sheet, gradually distributed from the middle position of the PP sheet to the edge position. In this way, dust and particles in all areas of the PP sheet can be removed.

[0043] In this embodiment, the air-blowing cleaning mechanism 2 further includes: multiple connecting pipes 202 and a first fixing block 203. Each connecting pipe 202 corresponds to a nozzle 201, and the nozzle 201 is mounted on the first fixing block 203. The first fixing block 203 is connected to the support plate 4. Two air-blowing cleaning mechanisms 2 are provided, symmetrically arranged about the center line of the PP sheet. Therefore, the two air-blowing cleaning mechanisms 2 can blow dust and particles adhering to the surface of the PP sheet from the center of the PP sheet to the two side edges, shortening the movement path of the dust and particles, thereby improving the cleaning of dust and particles from the PP sheet. Simultaneously, shortening the movement path further ensures that the surface of the coated PP sheet will not be scratched.

[0044] In this embodiment, the coating mechanism 3 includes: a support part 301, a tension roller 302, and a coating roller 303 arranged sequentially along the PP sheet conveying direction. The support part 301 is used to install the film, the tension roller 302 tensions the film, and the coating roller 303 is used for coating the PP sheet. A first connecting rod 304 is rotatably connected to both sides of the tension roller 302, and the first connecting rod 304 is connected to the support plate 4. A first driving member 305 and a second fixing block 306 are provided at both ends of the coating roller 303. The coating roller 303 is rotatably connected to the second fixing block 306, the telescopic end of the first driving member 305 is connected to the second fixing block 306, and the first driving member 305 is connected to the support plate 4. The support part 301 includes: two support units 3011, two supports... Unit 3011 is symmetrically arranged about the center line of the PP sheet, and two PP sheets are used together to install the film; the support unit 3011 includes: a second connecting rod 3012 and a first threaded rod 3013, the second connecting rod 3012 is connected to the first threaded rod 3013, the first threaded rod 3013 is threadedly connected to the support plate 4, and the first threaded rod 3013 is used to drive the second connecting rod 3012 to move closer to or away from the PP sheet; the film coating mechanism 3 also includes: a pressing block 307 and two second threaded rods 308, the pressing block 307 is connected to the second threaded rods 308, the second threaded rods 308 are threadedly connected to the second connecting rod 3012, and the second threaded rods 308 are used to drive the pressing block 307 to move closer to or away from the film. Therefore, the tension roller 302 ensures that the film remains taut and wrinkle-free, thus preventing wrinkles on the surface of the coated PP sheet and improving the coating effect. The film is installed by the opposing or relative movement of the two support units 3011, facilitating subsequent PP sheet coating. Rotating the first threaded rod 3013 moves the second connecting rod 3012, causing the two support units 3011 to move towards or relative to each other. After each coating is completed, rotating the second threaded rod 308 ensures that the clamping block 307 is in close contact with the film, preventing the film from flying out and securing the coated film.

[0045] Specifically, the film and its roller are inserted into the second connecting rod 3012 and rotatably connected to the second connecting rod 3012. In this way, during the lamination process, the film is gradually released by the rotating roller to achieve the lamination operation of the PP sheet.

[0046] Specifically, when laminating PP sheets, the film installed on the support 301 is tensioned by the tension roller 302 and then pressed onto the PP sheet by the laminating roller 303. The laminating process of the PP sheet is achieved by using the moving PP sheet.

[0047] In this embodiment, a cutting mechanism 5 is also included. The cutting mechanism 5 is located on the side of the laminating mechanism 3 away from the blowing and cleaning mechanism 2. The cutting mechanism 5 includes a second driving member 501 and a cutting blade 502. The second driving member 501 is connected to the support plate 4, and the telescopic end of the second driving member 501 is connected to the cutting blade 502. The second driving member 501 is used to drive the cutting blade 502 to move downward to cut the laminated film. Thus, by driving the cutting blade 502 downward through the second driving member 501, the film is cut to separate the film attached to the PP sheet from the film mounted on the support 301, facilitating the removal of the laminated PP sheet.

[0048] In this embodiment, the system further includes: a frame 6, with the conveying unit 1 connected to the frame 6, and the frame 6 positioned relative to the coating mechanism 3 with a slag discharge port 601; a support plate 4 connected to the conveying unit 1 via a support rod 401. Thus, dust and particulate matter blown onto the conveying unit 1 are discharged through the slag discharge port 601.

[0049] The lamination process of the PP sheet of this utility model is as follows: First, the first threaded rod 3013 is rotated to connect the film to its roller and install it on the support part 301 (at this time, the pressing block 307 is not in contact with the film, so the rotation of the film on the roller is not affected); then, the first drive member 305 is activated so that the film, after being tensioned by the tensioning roller 302, is pressed onto the surface of the PP sheet by the lamination roller 303; then, the conveying part 1 is activated to convey the PP sheet, and the moving PP sheet causes the roller, tensioning roller 302 and lamination roller 303 to rotate so that the film is covered on the surface of the PP sheet; finally, the second drive member 501 is activated to drive the cutting blade 502 to move downward to cut off the film (i.e., separate the film attached to the PP sheet from the film installed on the support part 301), and the second threaded rod 308 is rotated so that the pressing block 307 is in close contact with the film on the support part 301, thus ensuring that the film does not fly out.

[0050] In summary, this invention uses the nozzle 201 to remove dust and particles adhering to the surface of the PP sheet by blowing air, ensuring that the surface of the PP sheet after lamination will not be scratched. At the same time, the multiple inclined nozzles 201 can blow the dust and particles adhering to the PP sheet from the middle of the PP sheet to the edge, and finally blow them off. In addition, compared with the cleaning method, the method of removing dust and particles by blowing air can ensure that no scratches are left on the surface of the PP sheet, thus further ensuring that the surface of the PP sheet after lamination will not be scratched.

[0051] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. A PP sheet film laminating device, characterized in that, include: Conveying section (1), the conveying section (1) is used to carry and convey PP sheets; A blowing and cleaning mechanism (2) is located above the conveying section (1), and the blowing and cleaning mechanism (2) includes: Multiple nozzles (201) are arranged sequentially along the conveying direction of the PP sheet and are inclined. The nozzles (201) are used to spray high-pressure gas and act on the surface of the PP sheet to remove dust and particulate matter from the surface of the PP sheet. A film-coating mechanism (3) is located above the conveying section (1) and on one side of the blowing and cleaning mechanism (2). The film-coating mechanism (3) is used to install the film and coat the film onto the PP sheet. The support plate (4) is located above the blowing and cleaning mechanism (2) and the film coating mechanism (3), and the blowing and cleaning mechanism (2) and the film coating mechanism (3) are both connected to the support plate (4). The support plate (4) is connected to the conveying part (1).

2. The PP sheet coating device as described in claim 1, characterized in that: The blowing and cleaning mechanism (2) also includes: Multiple connecting pipes (202) and a first fixing block (203) are provided. Each connecting pipe (202) corresponds to a nozzle (201). The nozzle (201) is mounted on the first fixing block (203). The first fixing block (203) is connected to the support plate (4).

3. The PP sheet coating device as described in claim 1, characterized in that: There are two blower cleaning mechanisms (2), and the two blower cleaning mechanisms (2) are symmetrically arranged about the center line of the PP sheet.

4. The PP sheet coating apparatus as described in claim 1, characterized in that: The coating mechanism (3) includes: A support part (301), a tension roller (302), and a coating roller (303) are arranged sequentially along the conveying direction of the PP sheet. The support part (301) is used to install the film, the tension roller (302) is used to tension the film, and the coating roller (303) is used for coating the PP sheet.

5. The PP sheet coating apparatus as described in claim 4, characterized in that: Both sides of the tension roller (302) are rotatably connected to a first connecting rod (304), and the first connecting rod (304) is connected to the support plate (4); The coating roller (303) is provided with a first driving member (305) and a second fixing block (306) at both ends. The coating roller (303) is rotatably connected to the second fixing block (306). The telescopic end of the first driving member (305) is connected to the second fixing block (306). The first driving member (305) is connected to the support plate (4).

6. The PP sheet coating apparatus as described in claim 4, characterized in that: The support portion (301) includes: Two support units (3011) are symmetrically arranged about the center line of the PP sheet, and the two PP sheets are used together to mount the film.

7. The PP sheet coating apparatus as described in claim 6, characterized in that: The support unit (3011) includes: The second connecting rod (3012) and the first threaded rod (3013) are connected together. The first threaded rod (3013) is threadedly connected to the support plate (4). The first threaded rod (3013) is used to drive the second connecting rod (3012) to move closer to or further away from the PP sheet.

8. The PP sheet coating apparatus as described in claim 7, characterized in that: The coating mechanism (3) further includes: The clamping block (307) is connected to two second threaded rods (308), the clamping block (307) is connected to the second threaded rods (308), the second threaded rods (308) are threadedly connected to the second connecting rod (3012), and the second threaded rods (308) are used to drive the clamping block (307) to move closer to or further away from the film.

9. The PP sheet coating apparatus as described in claim 1, characterized in that: Also includes: A cutting mechanism (5) is located on the side of the coating mechanism (3) away from the blowing and cleaning mechanism (2), and the cutting mechanism (5) includes: The second drive member (501) and the cutting blade (502) are connected to the support plate (4). The telescopic end of the second drive member (501) is connected to the cutting blade (502). The second drive member (501) is used to drive the cutting blade (502) to move downward to cut the coated film.

10. The PP sheet coating apparatus as described in claim 1, characterized in that: Also includes: The frame (6) is connected to the conveying part (1), and the frame (6) is located relative to the film covering mechanism (3) with a slag discharge port (601). The support plate (4) is connected to the conveying part (1) via a support rod (401).

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