Multi-channel embossing device for surface treatment of indentation writing film

Abstract

The invention relates to the technical field of writing film embossing, in particular to a multi-channel embossing device for indentation writing film surface treatment, which comprises a main frame body and an embossing roller mounted in the middle of the main frame body, and winding rollers are connected below the left side and above the right side of the main frame body; and a heating outer protection frame body and a cooling outer protection frame body are sequentially mounted on the left side of the main frame body from top to bottom through a bracket. According to the multi-channel embossing device for indentation writing film surface treatment, the adjusting rollers are arranged on the upper side and the lower side of the embossing roller correspondingly, so that one writing film can be placed above and below the embossing roller correspondingly, the embossing device is provided with a plurality of channels for the writing films to move, then embossing operation is conducted on the two writing films at the same time, and the embossing efficiency is improved. Therefore, the embossing efficiency of the embossing device on the multiple writing films can be improved, the embossing device can well process the plastic waste into the indented writing films, recycling of the plastic waste is facilitated, and waste of the plastic waste is avoided.

Description

Technical Field

[0001] This invention relates to the field of writing film embossing technology, specifically a multi-channel embossing device for surface treatment of embossed writing films. Background Technology

[0002] Writing films can be manufactured from recycled plastic waste through processes such as mixing, extrusion, embossing, and coating. This facilitates the recycling and reuse of plastic waste, avoiding waste. Furthermore, the writing films made from high-quality transparent polyester film, a type of plastic waste, possess advantages such as wear resistance, scratch resistance, durability, and long service life. Embossing devices create multiple embossing patterns on the transparent polyester film, forming numerous tiny raised and recessed structures on the surface. These embossing patterns not only enhance the aesthetics of the writing film but also improve writing resistance and comfort, resulting in smoother writing and clearer handwriting. This caters to diverse needs in various situations. Therefore, embossing devices are required when treating the surface of writing films. For example, the patent application with publication number "CN118438656A" entitled "A Composite PE Film Embossing Device" discloses a method in which the tension of the first layer of film is adjusted by a first tension component, and a first unwinding drive can drive the first unwinding component to rotate, thereby conveying the first layer of film. A second guiding component guides and conveys the second layer of film to the embossing component, bypassing the second tension component before entering the embossing component. The tension of the second layer of film is adjusted by the second tension component, and the second unwinding drive can drive the third unwinding component to rotate, thereby conveying the second layer of film. A swinging component drives the extruder to swing, bringing the extruder closer to the patterned component for embossing and pressing. The working mechanism combines the functions of the extruder and the cooling device. The height of the cooling device is adjusted according to the working position of the extruder, ensuring the lowest point of the extruder contacts the cooling liquid. For example, the patent titled "An Embossing Mechanism for a Film" (CN109849317B) discloses that after the hot press roller moves to the left, the electric push rod drives the hot press roller to detach from the film via a telescopic rod. At this point, the winding device rewinds the film, and then the servo motor reverses, returning the embossing device to its original position for re-embossing. Simultaneously, a blower injects cold air through a hose into the jet nozzle, which moves with the accessory box and cools the embossed film, thus preventing film stretching.

[0003] The embossing device in the prior art uses an electric push rod to move a hot pressure roller downwards, and then the hot pressure roller moves to the left to emboss the surface of the film. This means that the embossing device only has one channel to emboss one writing film. When multiple writing films need to be embossed, one writing film can only be embossed before another writing film can be embossed. This makes the embossing efficiency of the embossing device for multiple writing films slow. Therefore, we propose a multi-channel embossing device for surface treatment of embossed writing films to solve the problems mentioned above. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-channel embossing device for surface treatment of embossed writing films, in order to solve the problem mentioned in the background art. Currently available embossing devices use an electric push rod to drive a hot pressure roller downwards, and then the hot pressure roller moves to the left to emboss the surface of the film. This means that the embossing device only has one channel to emboss one writing film. When multiple writing films need to be embossed, one writing film can only be embossed before another writing film can be embossed. This makes the embossing efficiency of the embossing device slow when embossing multiple writing films.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a multi-channel embossing device for surface treatment of embossing writing film, comprising a main frame and an embossing roller installed in the middle position. Unwinding rollers are installed on the upper left and lower right sides of the main frame, and take-up rollers are connected to the lower left and upper right sides of the main frame. A heating outer protective frame and a cooling outer protective frame are sequentially installed on the left side of the main frame from top to bottom via a bracket, and a cooling outer protective frame and a heating outer protective frame are sequentially installed on the right side of the main frame from top to bottom via a bracket. Adjusting rollers are provided above and below the embossing roller, and a support frame is installed on the outer side of the adjusting roller. The support frame is connected to the main frame via a support adjustment component.

[0006] Preferably, a set of guide rollers is provided on both the left and right sides of the heating outer protective frame and the cooling outer protective frame, with two rollers in each set, and the front and rear ends of the guide rollers are rotatably connected to the interior of the main frame.

[0007] Preferably, the front and rear ends of the adjusting roller are rotatably connected to bearing seats, and the left and right sides of the bearing seats are fixed with second protrusions.

[0008] Preferably, the support frame is U-shaped, and two second guide rods are installed in the groove inside the rear side of the support frame. A threaded rod and a second guide rod are installed in the groove inside the front side of the support frame. A second protrusion is threaded to the outer side of the threaded rod, and another second protrusion is slidably connected to the outer side of the second guide rod.

[0009] Preferably, the support frame is equipped with first protrusions on both the left and right sides at the front and rear.

[0010] Preferably, the support adjustment group includes two first guide vertical rods installed on the inner wall of the front side of the main frame, and a first guide vertical rod and a first bidirectional screw installed on the inner wall of the rear side of the main frame. The outer side of the first bidirectional screw is threaded with a first protrusion, and the outer side of the first guide vertical rod is slidably connected with another first protrusion.

[0011] Preferably, the heating outer protective frame and the cooling outer protective frame are both sealed and slidably connected to the interior of the front and rear sides of the heating outer protective frame and the cooling outer protective frame, and the main water storage frame is connected to the interior of the middle of the heating outer protective frame and the cooling outer protective frame through a fixing block. An auxiliary water storage frame is installed inside the adjusting frame, and the auxiliary water storage frame is sealed and slidably connected to the interior of the front and rear sides of the main water storage frame. The left and right sides of the heating outer protective frame, the cooling outer protective frame and the adjusting frame are all provided with through grooves for the indentation writing film to pass through.

[0012] Preferably, an adjustment frame with a "mountain" shaped structure is installed on the outside of the adjustment frame, and adjustment limit plates are installed on both the left and right ends of the adjustment frame. A connecting frame is fixed on the outside of the adjustment frame, and a second bidirectional lead screw is threaded through the left side of the connecting frame. Both the front and rear ends of the second bidirectional lead screw are rotatably connected through the inside of the main frame.

[0013] Preferably, the side of the main water storage frame and the auxiliary water storage frame closest to the indentation writing film is made of copper, and the internal spaces of the main water storage frame and the auxiliary water storage frame are connected.

[0014] Preferably, there is a gap between the outer side of the main water storage frame and the interior of the heating outer protective frame, and there is a gap between the upper and lower surfaces and the left and right sides of the auxiliary water storage frame and the inner sidewall of the adjustment frame. Furthermore, a water inlet pipe is installed through the interior of the rear side of the adjustment frame and the rear side of the auxiliary water storage frame, and a water outlet pipe is connected through the interior of the front side of the adjustment frame and the front side of the auxiliary water storage frame.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the multi-channel embossing device for surface treatment of embossed writing film can simultaneously emboss two writing films, thereby improving the embossing efficiency of the embossing device for multiple writing films, meeting different usage needs, and enabling the embossing device to effectively process plastic waste into embossed writing film, facilitating the recycling and reuse of plastic waste. The specific details are as follows: (1) By setting adjustment rollers on both the upper and lower sides of the embossing roller, a writing film can be placed above and below the embossing roller. Therefore, the embossing device has multiple channels for the writing film to move, and can simultaneously perform embossing operations on two writing films. This can improve the embossing efficiency of the embossing device for multiple writing films, meet different usage needs, and enable the embossing device to process plastic waste into embossed writing film, which is convenient for recycling and reuse of plastic waste, avoids waste of plastic waste, and facilitates the recycling and reuse of solid waste. By rotating the first bidirectional screw, the two adjusting rollers can be moved toward each other simultaneously, thus allowing for simultaneous adjustment of the distance between the two adjusting rollers and the embossing roller, facilitating adjustment of the embossing depth. Furthermore, by rotating the threaded rod, the distance between a single adjusting roller and the embossing roller can be further adjusted, thus facilitating further adjustment of the embossing depth and meeting different embossing requirements.

[0016] (2) By moving the two sets of connecting frames back and forth, it is convenient to simultaneously control the back and forth sliding of the adjustment frames on the front and back sides of the heating outer protective frame and the cooling outer protective frame. Therefore, it is convenient to control the back and forth sliding of the auxiliary water storage frames on the front and back sides of the main water storage frame. This makes it convenient to adjust the width of the heating outer protective frame and the cooling outer protective frame according to the width of the writing film, thus avoiding the waste of heat source and cold source. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a top view of the main frame structure of the present invention; Figure 3 This is a schematic diagram of the main cross-sectional structure of the main frame of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the embossing roller of the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the adjusting roller of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the heating outer protective frame of the present invention; Figure 7 This is a top view of the heating outer protective frame structure of the present invention; Figure 8 This is a top sectional view of the heating outer protective frame structure of the present invention; Figure 9 This is a schematic diagram of the internal structure of the main water storage frame of the present invention; Figure 10 This is a schematic diagram of the three-dimensional structure of the two adjustment frames after they are moved inward.

[0018] In the diagram: 1. Main frame; 2. Unwinding roller; 3. Guide roller assembly; 4. Heating outer protective frame; 5. Adjusting roller; 6. Embossing roller; 7. Cooling outer protective frame; 8. Rewinding roller; 9. Support frame; 91. First protrusion; 10. First bidirectional lead screw; 11. Bearing seat; 111. Second protrusion; 12. Threaded rod; 13. First guide vertical rod; 14. Second guide vertical rod; 15. Second bidirectional lead screw; 16. Adjusting frame; 17. Through groove; 18. Adjusting frame; 181. Control limit plate; 19. Connecting frame; 20. Main water storage frame; 21. Auxiliary water storage frame; 22. Fixing block; 23. Water inlet pipe; 24. Water outlet pipe. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1-10 The present invention provides the following technical solution: Example 1: The multi-channel embossing device for surface treatment of embossed writing films in this example, through the cooperation of two adjusting rollers 5 and one embossing roller 6, provides two channels for two writing films to move simultaneously and perform embossing operations, thereby improving the embossing efficiency for multiple writing films. The specific structure is shown in the attached diagram. Figures 1-5 As shown, the system includes a main frame 1 and an embossing roller 6 installed in its central position. Unwinding rollers 2 are installed on the upper left and lower right sides of the main frame 1, and take-up rollers 8 are connected to the lower left and upper right sides of the main frame 1. A heating outer protective frame 4 and a cooling outer protective frame 7 are installed sequentially from top to bottom on the left side of the main frame 1 via a bracket. A cooling outer protective frame 7 and a heating outer protective frame 4 are installed sequentially from top to bottom on the right side of the main frame 1 via a bracket. Adjusting rollers 5 are provided above and below the embossing roller 6, and a support frame 9 is installed on the outside of the adjusting roller 5. The support frame 9 is connected to the main frame 1 via a support adjustment component. A set of guide roller groups 3 is provided on the left and right sides of the heating outer protective frame 4 and the cooling outer protective frame 7. Each set has two rollers, and the front and rear ends of the guide roller groups 3 are rotatably connected to the interior of the main frame 1.

[0021] The front and rear ends of the adjusting roller 5 are rotatably connected to bearing seats 11, and the left and right sides of the bearing seats 11 are fixed with second protrusions 111. The support frame 9 is U-shaped, and the rear side of the support frame 9 has a slot for installing two second guide vertical rods 14. The front side of the support frame 9 has a slot for installing a threaded rod 12 and a second guide vertical rod 14. The outer side of the threaded rod 12 is threaded with a second protrusion 111, and the outer side of the second guide vertical rod 14 is slidably connected with another second protrusion 111. The left and right sides of the front and rear of the support frame 9 are equipped with first protrusions 91. The support adjustment group includes two first guide vertical rods 13 installed on the inner wall of the front side of the main frame 1, and a first guide vertical rod 13 installed on the inner wall of the rear side of the main frame 1. A vertical rod 13 and a first bidirectional lead screw 10 are provided. A first protrusion 91 is threadedly connected to the outer side of the first bidirectional lead screw 10. Another first protrusion 91 is slidably connected to the outer side of the first guide vertical rod 13. An adjustment frame 16 is slidably connected to the front and rear sides of the heating outer protective frame 4 and the cooling outer protective frame 7. A main water storage frame 20 is connected to the middle of the heating outer protective frame 4 and the cooling outer protective frame 7 through a fixing block 22. An auxiliary water storage frame 21 is installed inside the adjustment frame 16. An auxiliary water storage frame 21 is slidably connected to the front and rear sides of the main water storage frame 20. A through groove 17 for the indentation writing film to pass through is provided on the left and right sides of the heating outer protective frame 4, the cooling outer protective frame 7 and the adjustment frame 16.

[0022] First, the two rolls of writing film are installed on the two unwinding rollers 2. Then, the unwinding rollers 2 are rotated by an external motor to unwind the writing film. At this time, one end of the writing film is passed through the gap between the two guide roller groups 3 in each group, and then through the through groove 17 into the interior of the heated outer protective frame 4. After that, the writing film passes through the gap between the adjusting roller 5 and the embossing roller 6, and then through the through groove 17 into the interior of the cooling outer protective frame 7. Finally, one end of the writing film is wound and installed on the take-up drum outside the take-up roller 8. Then, the first bidirectional screw 10 is manually rotated. When the first bidirectional screw 10 rotates, it drives the two first protrusions 91 connected by the outer thread to move inward at the same time. The first protrusions 91 drive the two support frames 9 and the adjusting roller 5 to move inward at the same time. The setting of the first guide vertical rod 13 can ensure that the two support frames 9 The stable movement facilitates adjustment of the gap between the adjusting roller 5 and the embossing roller 6, allowing the two adjusting rollers 5 to apply pressure to the writing film above and below the embossing roller 6. Then, the motor drives the embossing roller 6 to rotate and emboss, enabling the embossing roller 6 to simultaneously process multiple embossing patterns on the transparent polyester film inside the writing film above and below, thus creating an embossed writing film. This polyester film is made from plastic waste, making it easy to recycle and reuse plastic waste, avoiding waste. (At this time, the writing film above and below the embossing roller 6 moves in opposite directions, and the adjusting roller 5 is a rubber roller), resulting in multiple tiny concave and convex structures on the surface of the writing film. These embossing patterns not only increase the aesthetics of the embossed writing film but also improve writing resistance and comfort, making writing smoother and the handwriting clearer, thereby meeting the diverse needs of different occasions.

[0023] Meanwhile, hot water is injected into the main water storage frame 20 and auxiliary water storage frame 21 inside the heated outer protective frame 4 through the water inlet pipe 23 to heat the writing film passing through the heated outer protective frame 4, which facilitates the subsequent embossing operation. Cold water is injected into the main water storage frame 20 and auxiliary water storage frame 21 inside the cooled outer protective frame 7 through the water inlet pipe 23 to cool the writing film passing through the cooled outer protective frame 7. Finally, the film is wound up by the rotation of the take-up roller 8.

[0024] When it is necessary to have different embossing depths on the two writing films passing above and below the embossing roller 6, the threaded rod 12 at the corresponding position can be manually rotated. When the threaded rod 12 rotates, it drives the second protrusion 111 connected to the outer thread to move. The second protrusion 111 drives the bearing seat 11 and the adjusting roller 5 to move. Therefore, the distance between the adjusting roller 5 and the embossing roller 6 can be further adjusted. This makes it easy to further adjust the embossing depth of the writing film according to the requirements, thereby meeting different embossing needs.

[0025] Example 2: The multi-channel embossing device for surface treatment of the writing film in this example, based on Example 1, allows for adjustment of the widths of the heating outer protective frame 4 and the cooling outer protective frame 7 according to the width of the writing film, thereby avoiding waste of heat and cold sources. The specific structure is shown in the attached diagram. Figures 6-10 As shown, an adjustment frame 18 with a "mountain" shaped structure is installed on the outside of the adjustment frame 16, and adjustment limit plates 181 are installed on both the left and right ends of the adjustment frame 18. A connecting frame 19 is fixed on the outside of the adjustment frame 18. A second bidirectional screw 15 is threaded through the left side of the connecting frame 19, and the front and rear ends of the second bidirectional screw 15 are rotatably connected through the inside of the main frame 1. The side of the main water storage frame 20 and the auxiliary water storage frame 21 near the indentation writing film is made of copper, and the internal spaces of the main water storage frame 20 and the auxiliary water storage frame 21 are connected. There is a gap between the outside of the main water storage frame 20 and the inside of the heating outer protective frame 4. There is a gap between the top and bottom and the left and right sides of the auxiliary water storage frame 21 and the inner sidewall of the adjustment frame 16. A water inlet pipe 23 is installed through the rear side of the adjustment frame 16 and the auxiliary water storage frame 21, and a water outlet pipe 24 is connected through the front side of the adjustment frame 16 and the auxiliary water storage frame 21.

[0026] The second bidirectional lead screw 15 is manually rotated according to the width of the writing film. When the second bidirectional lead screw 15 rotates, it drives the two connecting brackets 19 connected by the outer thread to move towards each other simultaneously. At this time, the connecting brackets 19, which are inverted "U" shape, drive the adjusting brackets 18 on the front and rear sides of the heating outer protective frame 4 and the cooling outer protective frame 7 to move. This causes the adjusting brackets 18 to drive the adjusting frame 16 to slide in a sealed manner within the corresponding heating outer protective frame 4 or cooling outer protective frame 7. The adjusting frame 16 drives the internal auxiliary water storage frame 21 to move within the corresponding main water storage frame 20. The sealing and sliding mechanism (which can be achieved by installing sealing gaskets at corresponding positions on the outside of the adjusting frame 16 and the auxiliary water storage frame 21) allows the width of the heating outer protective frame 4 and the cooling outer protective frame 7 to be adjusted according to the width of the writing film. This avoids the writing film being too narrow while the heating outer protective frame 4 and the cooling outer protective frame 7 are too wide, thus preventing the injection of too much hot water into the heating outer protective frame 4 and too much cold water into the cooling outer protective frame 7, thereby avoiding waste of heat and cold sources.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-channel embossing device for surface treatment of embossing writing film, comprising a main frame (1) and an embossing roller (6) installed in its central position, characterized in that: The main frame (1) is equipped with unwinding rollers (2) on the upper left and lower right sides, and winding rollers (8) are connected to the lower left and upper right sides of the main frame (1). The left side of the main frame (1) is equipped with a heating outer protective frame (4) and a cooling outer protective frame (7) through a bracket from top to bottom. The right side of the main frame (1) is equipped with a cooling outer protective frame (7) and a heating outer protective frame (4) through a bracket from top to bottom. Adjusting rollers (5) are provided above and below the embossing roller (6). A support frame (9) is installed on the outside of the adjusting roller (5). The support frame (9) is connected to the main frame (1) through a support adjustment component.

2. The multi-channel embossing device for surface treatment of embossing writing film according to claim 1, characterized in that: The heating outer protective frame (4) and the cooling outer protective frame (7) are each provided with a set of guide rollers (3) on the left and right sides. Each set has two rollers, and the front and rear ends of the guide rollers (3) are rotatably connected to the interior of the main frame (1).

3. The multi-channel embossing device for surface treatment of embossing writing film according to claim 1, characterized in that: The front and rear ends of the adjusting roller (5) are rotatably connected to bearing seats (11), and the left and right sides of the bearing seats (11) are fixed with second protrusions (111).

4. The multi-channel embossing device for surface treatment of embossing writing film according to claim 3, characterized in that: The support frame (9) is U-shaped, and two second guide rods (14) are installed in the groove inside the rear side of the support frame (9). A threaded rod (12) and a second guide rod (14) are installed in the groove inside the front side of the support frame (9). A second protrusion (111) is threaded to the outside of the threaded rod (12), and another second protrusion (111) is slidably connected to the outside of the second guide rod (14).

5. The multi-channel embossing device for surface treatment of embossing writing film according to claim 4, characterized in that: The support frame (9) has first protrusions (91) installed on both the left and right sides at the front and rear.

6. The multi-channel embossing device for surface treatment of embossing writing film according to claim 5, characterized in that: The support control group includes two first guide rods (13) installed on the inner wall of the front side of the main frame (1), and a first guide rod (13) and a first bidirectional screw (10) are installed on the inner wall of the rear side of the main frame (1). A first protrusion (91) is threaded to the outer side of the first bidirectional screw (10), and another first protrusion (91) is slidably connected to the outer side of the first guide rod (13).

7. The multi-channel embossing device for surface treatment of embossing writing film according to claim 1, characterized in that: The heating outer protective frame (4) and the cooling outer protective frame (7) are both sealed and slidably connected to the interior of the front and rear sides of the frame. The heating outer protective frame (4) and the cooling outer protective frame (7) are both connected to the main water storage frame (20) through the fixing block (22). The auxiliary water storage frame (21) is installed inside the adjusting frame (16). The auxiliary water storage frame (21) is sealed and slidably connected to the interior of the front and rear sides of the main water storage frame (20). The heating outer protective frame (4), the cooling outer protective frame (7) and the adjusting frame (16) are all provided with through grooves (17) for the indentation writing film to pass through.

8. The multi-channel embossing device for surface treatment of embossing writing film according to claim 7, characterized in that: An adjustment frame (18) with a "mountain" shaped structure is installed on the outside of the adjustment frame (16), and adjustment limit plates (181) are installed on both the left and right ends of the adjustment frame (18). A connecting frame (19) is fixed on the outside of the adjustment frame (18). A second bidirectional screw (15) is threaded through the left side of the connecting frame (19), and both the front and rear ends of the second bidirectional screw (15) are rotatably connected through the inside of the main frame (1).

9. A multi-channel embossing device for surface treatment of embossing writing film according to claim 7, characterized in that: The main water storage frame (20) and the auxiliary water storage frame (21) are made of copper on the side near the indentation writing film, and the interior spaces of the main water storage frame (20) and the auxiliary water storage frame (21) are connected.

10. A multi-channel embossing device for surface treatment of embossing writing film according to claim 7, characterized in that: There is a gap between the outer side of the main water storage frame (20) and the interior of the heating outer protective frame (4). There is a gap between the upper and lower surfaces and the left and right sides of the auxiliary water storage frame (21) and the inner side wall of the adjustment frame (16). A water inlet pipe (23) is installed through the rear side of the adjustment frame (16) and the auxiliary water storage frame (21). A water outlet pipe (24) is connected through the front side of the adjustment frame (16) and the auxiliary water storage frame (21).

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