Back drying type roll-to-roll film digital printer

Abstract

The utility model relates to a back drying type roll-to-roll film digital printer which comprises two wallboards, a plurality of guide rods, at least one back drying assembly, two telescopic pieces and a heating plate. The plurality of guide rods are rotationally mounted between the two wallboards; the back surface drying assembly is fixed between the two wallboards and is positioned on one side of the back surface of the film; the back face drying assembly comprises two telescopic pieces and a heating plate. One ends of the two telescopic pieces are fixedly connected with the two wallboards respectively; the two ends of the heating plate are fixedly connected with the other ends of the two telescopic pieces correspondingly, and the heating plate is driven to be close to or away from the film through the telescopic effect of the telescopic pieces. The heating plate is driven by the telescopic piece to be close to the film, the heating plate makes contact with the back face of the film, printing ink on the printing front face cannot be affected, no interval exists between the heating plate and the film, the heating plate can directly transmit heat to the film, resin in the printing ink volatilizes out from the printing front face, and the drying effect is good; the phenomenon that the surface is dry and the interior is not dry is effectively avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of printing equipment, in particular to a back-drying roll-to-roll film digital printer. Background Art

[0002] Traditional printing methods cannot achieve the transition of all colors according to the picture, so the production effect has a clear color boundary phenomenon, and it is difficult to reflect the color transition according to the picture itself. However, many film products need to print trademarks, logos, fine patterns, transition colors and other precision and highly complex patterns, and the application in building materials decoration, home decoration, gifts, and handicrafts industries is more extensive. Digital film printing can meet these requirements, fully reflecting the strong market potential, breaking through the bottleneck brought by traditional printing methods such as screen printing and gravure printing.

[0003] At present, most digital film printers dry films by fixing a drying component at the bottom of the device, and using the drying component to dry the printed front side of the film. For example, Patent No. CN219096321U discloses a transmission mechanism for roll-to-roll film digital direct printing and its printer, in which a PTC drying component 10 is provided below the film 5 between the first guide rod 6 and the second guide rod 11, and the PTC drying component 10 is used to dry the printed front side of the film. However, in this drying method, since there is a certain distance between the drying component and the film, the drying component cannot directly transfer heat to the film, and the drying effect is still not ideal, and the phenomenon of dry surface but not dry inside is easy to occur. After the film is rolled up, the back side of the film is easy to be stained, which seriously affects the next step of the process. Utility Model Content

[0004] The main purpose of the utility model is to propose a back-drying roll-to-roll film digital printer, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] A back-drying roll-to-roll film digital printer, comprising

[0007] two wall panels;

[0008] A plurality of guide rods are rotatably mounted between the two wall panels and are used to transport the printed film;

[0009] At least one back drying component is fixed between the two wall panels and is located on one side of the back of the film, and the back drying component includes

[0010] Two telescopic members, one end of which is fixedly connected to the two wall panels respectively;

[0011] The two ends of the heating plate are respectively fixedly connected to the other ends of the two telescopic members, and the heating plate is driven to approach or move away from the film through the telescopic effect of the telescopic members.

[0012] Optionally, the telescopic member includes

[0013] A support column fixedly connected to the wall panel;

[0014] The telescopic cylinder is fixed at the bottom of the supporting column.

[0015] Optionally, the heating plate comprises

[0016] Two end support plates are fixedly connected to the two telescopic members respectively;

[0017] A hollow box body, fixed between the two end support plates;

[0018] A plurality of aluminum foil heating sheets are fixed on the inner bottom of the hollow box body.

[0019] Optionally, guide rails are provided between the end support plates and the wall panels on both sides.

[0020] Optionally, the two end support plates are U-shaped structures with their openings facing each other, and the two ends of the hollow box body are respectively connected to the lower flange plates of the two end support plates by bolts.

[0021] Optionally, a temperature sensor is provided in the hollow box.

[0022] Optionally, thermal insulation cotton is provided around the inner periphery and the top surface of the hollow box body.

[0023] Optionally, the hollow box body comprises

[0024] lower box;

[0025] The upper cover is arranged on the lower box body and connected with the lower box body by bolts.

[0026] Optionally, the lower box body is a heat-conducting aluminum plate.

[0027] The utility model provides a back-drying roll-to-roll film digital printer, which has the following beneficial effects:

[0028] The utility model drives the heating plate close to the film through the telescopic part. The heating plate contacts with the back side of the film, which will not affect the ink on the printed front side. There is no gap between the heating plate and the film. The heating plate can directly transfer heat to the film, so that the resin in the ink evaporates from the printed front side. The drying effect is good, and the phenomenon of drying on the surface but not on the inside is effectively avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1This is a schematic diagram of the structure of the back-drying roll-to-roll film digital printer of the utility model;

[0030] Figure 2 This is a schematic diagram of the overall structure of the back drying component of the utility model;

[0031] Figure 3 For this utility model Figure 2 The enlarged view of point A in the middle;

[0032] Figure 4 It is a schematic diagram of the internal structure of the hollow box body of the utility model.

[0033] In the figure: 1. wall panel; 2. guide rod; 3. back drying assembly; 31. telescopic part; 311. support column; 312. telescopic cylinder; 32. heating plate; 321. end support plate; 322. hollow box body; 323. aluminum foil heating plate; 4. guide rail. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings of the utility model.

[0035] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0038] Example

[0039] Reference Figure 1 , Figure 2 , a back-drying roll-to-roll film digital printer, comprising two wall panels 1, a plurality of guide rods 2, and at least one back-drying component 3;

[0040] A plurality of guide rods 2 are rotatably mounted between the two wall panels 1 for conveying the printed film 100; at least one back drying assembly 3 is fixed between the two wall panels 1 and is located on one side of the back side of the film 100;

[0041] The back drying component 3 includes two telescopic parts 31 and a heating plate 32; one end of the two telescopic parts 31 is fixedly connected to the two wall panels 1 respectively; the two ends of the heating plate 32 are fixedly connected to the other ends of the two telescopic parts 31 respectively, and the heating plate 32 is driven close to or away from the film 100 through the telescopic effect of the telescopic parts 31.

[0042] The roll-to-roll film digital printer also includes a feed roll 200, a printing platform 300, a receiving roll 400, etc., which are not described in detail here. For details, please refer to the commonly used roll-to-roll film digital printers on the market or the roll-to-roll film digital direct printing transmission mechanism and its printer disclosed in Patent No. CN219096321U.

[0043] The working principle of the utility model is as follows: the unwinding roll 200 provides the film 100. When the printer is started, the film 100 is printed on the printing platform 300 and then transported to the receiving roll 400 through a plurality of guide rods 2. During the transporting process, the telescopic member 31 drives the heating plate 32 to approach the film 100. The heating plate 32 contacts the back of the film 100 to dry the back of the film 100 so that the resin in the ink evaporates from the printed front. When the printer is paused, the telescopic member 31 drives the heating plate 32 away from the film 100 to prevent the film 100 from being overheated and plastically deformed.

[0044] The utility model drives the heating plate 32 to approach the film 100 through the telescopic member 31. The heating plate 32 contacts the back side of the film 100, which will not affect the ink on the printed front side. There is no gap between the heating plate 32 and the film 100. The heating plate 32 can directly transfer heat to the film 100, so that the resin in the ink evaporates from the printed front side. The drying effect is good, and the phenomenon of drying on the surface but not on the inside is effectively avoided.

[0045] Reference Figure 3 , Figure 4 In a specific implementation scheme, the telescopic member 31 includes a support column 311 and a telescopic cylinder 312 ; the support column 311 is fixedly connected to the wall panel 1 ; and the telescopic cylinder 312 is fixed at the bottom of the support column 311 .

[0046] In a specific embodiment, the heating plate 32 includes two end support plates 321, a hollow box body 322 and a plurality of aluminum foil heaters 323; the two end support plates 321 are fixedly connected to the two telescopic members 31 respectively; the hollow box body 322 is fixed between the two end support plates 321, and the bottom of the hollow box body 322 is used to contact the film 100; a plurality of aluminum foil heaters 323 are fixed to the inner bottom of the hollow box body 322.

[0047] In a specific embodiment, a guide rail 4 is arranged between the end support plates 321 on both sides and the wall panel 1, the guide block of the guide rail 4 is fixed on the wall panel 1, the slider of the guide rail 4 is fixed on the end support plate 321, the guide block and the slider are slidably matched, and the movement of the heating plate 32 is guided by the guide rail 4.

[0048] In a specific embodiment, the two end support plates 321 are U-shaped structures with openings facing each other. The two ends of the hollow box body 322 are respectively connected to the lower flange plates of the two end support plates 321 by bolts. The lower flange plates of the end support plates 321 can support the hollow box body 322 and are connected to it by bolts, which is convenient for disassembly and assembly.

[0049] In a specific embodiment, a temperature sensor is disposed in the hollow box body 322 for detecting the temperature of the hollow box body 322 in real time.

[0050] In a specific embodiment, the inner periphery and top surface of the hollow box body 322 are provided with heat-insulating cotton to prevent heat diffusion and save energy.

[0051] In a specific embodiment, the hollow box body 322 includes a lower box body and an upper cover; the upper cover is arranged on the lower box body and connected to the lower box body by bolts, so as to facilitate maintenance of the internal structure of the hollow box body 322 after opening.

[0052] In a specific embodiment, the lower box body is a heat-conducting aluminum plate with high heat conduction efficiency.

[0053] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A back-drying roll-to-roll film digital printer, characterized in that: include two wall panels; A plurality of guide rods are rotatably mounted between the two wall panels and are used to transport the printed film; At least one back drying component is fixed between the two wall panels and is located on one side of the back of the film, and the back drying component includes Two telescopic members, one end of which is fixedly connected to the two wall panels respectively; The two ends of the heating plate are respectively fixedly connected to the other ends of the two telescopic members, and the heating plate is driven to approach or move away from the film through the telescopic effect of the telescopic members.

2. The back-drying roll-to-roll digital film printer according to claim 1, characterized in that: The telescopic member comprises A support column fixedly connected to the wall panel; The telescopic cylinder is fixed at the bottom of the supporting column.

3. The back-side drying roll-to-roll film digital printer according to claim 1, characterized in that: The heating plate comprises Two end support plates are fixedly connected to the two telescopic members respectively; A hollow box body, fixed between the two end support plates; A plurality of aluminum foil heating sheets are fixed on the inner bottom of the hollow box body.

4. The back-side drying roll-to-roll film digital printer according to claim 3, characterized in that: Guide rails are arranged between the end support plates and the wall panels on both sides.

5. The back-side drying roll-to-roll film digital printer according to claim 3, characterized in that: The two end support plates are U-shaped structures with their openings facing each other, and the two ends of the hollow box body are respectively connected to the lower flange plates of the two end support plates by bolts.

6. The back-side drying roll-to-roll film digital printer according to claim 3, characterized in that: A temperature sensor is arranged in the hollow box body.

7. The back-drying roll-to-roll film digital printer according to claim 3, characterized in that: Thermal insulation cotton is arranged around the inside and on the top surface of the hollow box body.

8. The back-side drying roll-to-roll film digital printer according to claim 3, characterized in that: The hollow box body comprises lower box; The upper cover is arranged on the lower box body and connected with the lower box body by bolts.

9. The back-drying roll-to-roll film digital printer according to claim 8, characterized in that: The lower box body is a heat-conducting aluminum plate.

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