A film printing device for improving the production environment

Abstract

The utility model is suitable for film production and processing equipment technical field, disclose a kind of film printing device of improving production environment, including printing machine body, top cover;Printing machine body includes rack side plate, printing plate roll, impression roll, ink tank, tensioning roller, oven assembly, air curtain, back baffle and observation window.The utility model installs air curtain in the bottom of oven assembly, and make air curtain extend to the below of ink tank downwards, volatile organic compounds in ink can be blocked to the front side of printing machine body;And by the back baffle of the rear side fixed connection of two racks, volatile organic compounds can be blocked to the rear diffusion of printing machine body, thus by the intercoordination of air curtain, rack side plate, back baffle and top cover, the diffusion of volatile organic compounds to workshop environment is reduced, to improve production environment, reduce the harm to human body.

Description

Technical Field

[0001] This utility model relates to the field of film production and processing equipment technology, and in particular to a film printing device that improves the production environment. Background Technology

[0002] PVC film is widely used in packaging (such as toys, gifts, and daily necessities) and decoration (such as furniture veneers and wall decorations). Printing exquisite patterns, colors, or textures can significantly enhance the visual appeal of products and increase consumers' desire to purchase. Existing film printing equipment typically consists of a film unwinding assembly, a film printing machine, and a film rewinding assembly. The film printing machine includes a frame, a printing roller and a substrate roller mounted on the frame in a counter-arranged configuration, and an ink trough located below the printing roller, containing ink. The basic components of ink include pigments, resins, solvents, and additives. Many oil-based solvents contain volatile organic compounds (VOCs), which are harmful to human health.

[0003] However, in order to allow the film to be drawn to the printing press, the rear of the existing film printing press is usually connected to the outside. In addition, to facilitate the filling of ink troughs, the bottom of the oven on the front of the printing press is directly open to the outside. This makes it easy for volatile organic compounds in the ink to drift into the workshop environment outside the printing press, which is extremely harmful to human health. Utility Model Content

[0004] The purpose of this invention is to provide a film printing device that improves the production environment. It aims to solve the problem that existing film printing machines have open front and rear sides, making it easy for volatile organic compounds in the ink to drift into the workshop environment outside the printing machine, resulting in a poor production environment and great harm to human health.

[0005] To achieve the above objectives, the solution provided by this utility model is as follows:

[0006] A film printing apparatus for improving the production environment includes a printing machine body and a top cover fixedly disposed above the printing machine body; the printing machine body includes two vertically arranged frame side plates, a printing plate roller and a receiving roller rotatably disposed between the two frame side plates, an ink trough disposed between the two frame side plates and located below the printing plate roller, and an oven assembly disposed between the two frame side plates and located above; the printing machine body further includes:

[0007] An air baffle is provided on the upper side of the oven assembly, the air baffle is located in front of the ink tank, and the lower side of the air baffle extends downward to the bottom of the ink tank.

[0008] The rear baffle is vertically arranged and fixedly connected to the rear side of the two frame side plates;

[0009] An observation window, which is movably mounted on the rear baffle;

[0010] The tensioning roller is rotatably mounted between two frame side plates and is used to tension the film pulled between the printing plate roller and the printing roller.

[0011] Optionally, a first hanging rod is fixedly provided below the bottom of the oven assembly, and the first hanging rod is parallel to the printing plate roller; the upper side of the air baffle is fixed to the first hanging rod.

[0012] Optionally, a second hanging rod is fixedly connected to the lower side of the air curtain, and the second hanging rod is parallel to the first hanging rod.

[0013] Optionally, two support plates are fixedly connected to the front side of the oven assembly, and the support plates are provided with arc grooves for supporting the second hanging rod.

[0014] Optionally, the oven assembly includes a guide roller box, multiple limiting guide rollers rotatably disposed within the guide roller box, and an oven body located in front of the guide roller box; the guide roller box is fixedly disposed between two frame side plates, and the side of the guide roller box facing the oven body has an opening; the side of the oven body facing the guide roller box has an air outlet.

[0015] Optionally, the film printing apparatus for improving the production environment further includes an exhaust fan and an exhaust pipe; the exhaust fan is connected to a waste gas treatment system; and the exhaust pipe is connected to the side plate of the frame and the input end of the exhaust fan, respectively.

[0016] Optionally, multiple traction rollers are rotatably provided below the top of the top cover; the traction rollers are located above the printing press body.

[0017] Optionally, the film printing apparatus for improving the production environment further includes a film unwinding assembly and a film rewinding assembly; the printing machine body is located between the film unwinding assembly and the film rewinding assembly.

[0018] Beneficial effects:

[0019] This invention provides a film printing device that improves the production environment. By hanging an air baffle at the bottom of the oven assembly and extending it downwards to below the ink tank, volatile organic compounds (VOCs) in the ink can be prevented from diffusing to the front of the printing machine. Furthermore, by fixing a rear baffle to the rear of the two frames, VOCs can be prevented from diffusing to the rear of the printing machine. Thus, through the cooperation of the air baffle, frame side plates, rear baffle, and top cover, the diffusion of VOCs into the workshop environment is reduced, thereby improving the production environment and reducing harm to human health. At the same time, the observation window on the rear baffle can facilitate observation of the film traction and printing process inside the printing machine while blocking volatiles. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of the film printing apparatus for improving the production environment provided by this utility model. Figure 1 .

[0022] Figure 2 yes Figure 1 Enlarged view of section A.

[0023] Figure 3 yes Figure 1 Enlarged view of section B.

[0024] Figure 4 This is a schematic diagram of the structure of the film printing apparatus for improving the production environment provided by this utility model. Figure 2 .

[0025] Figure 5 This is a schematic diagram of the structure of the film printing apparatus for improving the production environment provided by this utility model. Figure 3 .

[0026] Figure 6 This is a schematic diagram of the structure of the film printing apparatus for improving the production environment provided by this utility model. Figure 4 .

[0027] Figure 7 This is a schematic diagram of the structure of the oven assembly. Figure 1 .

[0028] Figure 8 This is a schematic diagram of the structure of the oven assembly. Figure 2 .

[0029] Figure 9 This is a schematic diagram of the locking mechanism.

[0030] Figure 10 Schematic diagram of the structure of the film printing apparatus for improving the production environment provided by this utility model Figure 5 .

[0031] Figure 11 This is a schematic diagram of the structure of the oven assembly. Figure 3 .

[0032] Explanation of icon numbers:

[0033] 1-Top cover;

[0034] 2-Frame side plate; 201-Guide groove; 202-Bearing seat;

[0035] 3-Printing plate roller; 4-Printing roller; 5-Ink trough;

[0036] 6-Oven assembly; 61-Guide roller box; 62-Limiting guide roller; 63-Oven body; 631-Air outlet; 632-Air inlet; 64-Filter screen; 65-Heating tube; 66-Insert rod; 67-Film conveying channel;

[0037] 7-Air curtain; 8-Rear baffle; 9-Observation window; 10-Tension roller; 11-Film; 12-First hanging rod; 13-Second hanging rod;

[0038] 14-Support plate; 141-Arc groove;

[0039] 15-Exhaust fan; 16-Exhaust pipe; 17-Traction roller; 18-Film unwinding assembly; 19-Film winding assembly; 20-Gear; 21-Cylinder; 22-Roller; 23-Handle; 24-Support rail; 25-Locking mechanism; 251-Locking rod; 252-Pull rod; 253-Fixing rod; 254-Limit nut. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0042] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0043] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0044] Please see Figures 1 to 11 This utility model provides a film printing device that improves the production environment. This film printing device can be used to print patterns on the surface of PVC film 11, PE film, etc. Specifically, it includes a printing machine body and a top cover 1 fixedly mounted above the printing machine body. At least two printing machine bodies are arranged side-by-side to adapt to different printing processes and also meet the needs of multi-color printing on the surface of the film 11.

[0045] The printing press body includes frame side plates 2, printing plate roller 3, printing roller 4, ink trough 5, tension roller 10, and oven assembly 6. For each printing press body, two frame side plates 2 are vertically arranged opposite each other, and the frame side plates 2 can extend upwards to contact the top cover 1. The printing plate roller 3 and printing roller 4 are both rotatably positioned between the two frame side plates 2, with the printing plate roller 3 located below the printing roller 4. As the core component for printing pattern information, the printing plate roller 3 first absorbs ink during rotation (excess ink in non-image areas is removed by a doctor blade), and then, upon contact with the film 11, transfers the ink to the surface of the film 11. The printing roller 4, located above the printing plate roller 3, uses the pressure formed with the printing plate roller 3 to ensure sufficient ink transfer onto the film 11. The ink trough 5 is located between the two frame side plates 2, and below the printing plate roller 3. The ink trough 5 is located below the printing plate roller 3 and is used to store the ink required for printing, providing a continuous and stable ink supply to the printing plate roller 3. If necessary, an ink delivery roller (not shown in the attached diagram) can be placed in the ink trough 5 to ensure that the ink can be evenly coated onto the surface of the printing plate roller 3. The tension roller 10 is rotatably mounted between the two frame side plates 2 and is used to tension the film 11 that is pulled between the printing plate roller 3 and the substrate roller 4. The oven assembly 6 is installed between the two frame side plates 2 and is located above the substrate roller 4. After the film 11 completes the ink transfer by pressing it against the printing plate roller 3, it immediately enters the baking area of ​​the oven assembly 6. The oven heats the film 11 to quickly evaporate the solvent and solidify the wet ink on the surface of the film 11, thereby avoiding problems such as smudging, sticking, and blurring of the printed pattern due to undried ink. At the same time, it enhances the adhesion between the ink and the surface of the film 11, ensuring that the printed film 11 can stably enter the subsequent processing stage, ultimately guaranteeing the quality and durability of the printed product.

[0046] The printing press body also includes an air baffle 7, a rear baffle 8, and an observation window 9. The air baffle 7 is hung on the bottom of the oven assembly 6, and is located in front of the ink trough 5. Figure 1 (The direction indicated by the middle arrow is the front side), the lower side of the air curtain 7 extends downward to below the ink trough 5. The air curtain 7 can prevent volatile organic compounds in the ink from diffusing to the front side of the printing press body. The rear baffle 8 is vertically arranged and fixedly connected to the rear side of the two frame side plates 2, which can prevent volatile organic compounds from diffusing to the rear side of the printing press body. The air curtain, frame side plates 2, rear baffle 8 and top cover 1 work together to reduce the diffusion of volatile organic compounds into the workshop environment, thereby improving the production environment and reducing harm to the human body. At the same time, the observation window 9 on the rear baffle 8 can also facilitate the observation of the film traction and printing inside the printing press body while blocking volatile substances.

[0047] Specifically, the observation window can be an aluminum alloy sliding window. It is understood that the tension roller 10, the printing plate roller 3, and the printing substrate roller 4 all have the same length direction.

[0048] Specifically, the printing plate roller 3 can be driven by a drive motor. For example, a reducer can be connected to the output end of the main drive motor to adjust the speed to suit the printing process; the output shaft of the reducer is connected to a main drive shaft that runs through multiple printing presses via a coupling, and the main drive shaft is engaged with the printing plate roller 3 of each printing press via gears 20, thereby enabling one drive motor to drive the printing plate roller 3 of multiple printing presses to rotate synchronously.

[0049] Specifically, during pre-production, in order to allow the film 11 to be drawn between the printing roller 4 and the printing plate roller 3, the height of the printing roller 4 can be adjusted by a cylinder 21, thereby adjusting the distance between the printing roller 4 and the printing plate roller 3. When the distance between the printing roller 4 and the printing plate roller 3 increases, the film 11 can be drawn between the printing roller 4 and the printing plate roller 3. As an example, bearing seats 202 are respectively provided at both ends of the printing roller 4. The bearing seats 202 are connected to the ends of the printing roller 4 through a drive, and the bearing seats 202 are slidably mounted on the outside of the frame side plate 2. Thus, when the cylinder 21 (for example, the cylinder 21 is fixedly mounted above the two bearing seats 202) is fixedly mounted on the outside of the frame side plate 2, the bearing seats 202 can be driven to move up and down by the cylinder 21, so that the printing roller 4 rises and falls.

[0050] In order to raise and lower the printing roller 4, a guide groove 201 can be opened in the vertical direction on the side plate 2 of the frame. The two sides of the printing roller 4 are movably arranged in the guide groove 201. The lower groove wall of the guide groove 201 is an arc-shaped groove wall, which can be used to support the rotating printing roller 4.

[0051] like Figure 1 and Figure 2 As shown, in an optional embodiment, a first hanging rod 12 is fixedly provided below the bottom of the oven assembly 6, and the first hanging rod 12 is parallel to the printing plate roller 3; the upper side of the air baffle 7 is fixed to the first hanging rod 12. In this embodiment, the first hanging rod 12, which is parallel to the printing plate roller 3, allows the suspension of the air baffle 7 to better fit the lateral layout of the device, ensuring that the air baffle 7 forms a complete shielding of the front side of the ink trough 5 in the width direction, improving the blocking effect on volatile organic compounds, and also facilitating the installation and removal of the air baffle 7.

[0052] like Figure 5As shown, in an optional embodiment, a second hanging rod 13 is fixedly connected to the lower side of the air deflector 7, and the second hanging rod 13 is parallel to the first hanging rod 12. The fixed connection of the second hanging rod 13, parallel to the first hanging rod 12, to the lower side of the air deflector 7 enhances the structural stability of the lower side of the air deflector 7, preventing the air deflector 7 from swaying or curling due to its own weight or airflow, ensuring that the lower side of the air deflector 7 always remains in a flat, hanging state, thereby continuously and effectively covering the area below the ink trough 5, further improving the blocking effect on volatile organic compounds.

[0053] like Figure 5 As shown, in an optional embodiment, two support plates 14 are fixedly connected (by welding) to the front side of the oven assembly 6. The support plates 14 are provided with arc grooves 141 for supporting the second hanging rod 13. When it is necessary to clean the ink tank 5 or add ink, the air curtain 7 can be lifted, and the second hanging rod 13 at the lower end of the air curtain 7 can be placed on the two support plates 14.

[0054] like Figures 5 to 8 As shown, in an optional embodiment, the oven assembly 6 includes a guide roller box 61, multiple limiting guide rollers 62 rotatably disposed within the guide roller box 61, and an oven body 63 located in front of the guide roller box 61. The guide roller box 61 is fixedly disposed between two frame side plates 2, and the side of the guide roller box 61 facing the oven body 63 has an opening; the side of the oven body 63 facing the guide roller box 61 has multiple air outlets 631 spaced apart. Figure 10 As shown, after the film 11 is printed, it needs to be pulled upwards to the oven assembly 6 for baking. When the film 11 is pulled upwards to the oven assembly 6, it is located between the guide roller box 61 and the oven body 63, with the printed side of the film 11 facing the air outlet 631. Since the guide roller box 61 has an opening on the side facing the oven body 63, and the oven body 63 has multiple air outlets 631 spaced apart on the side facing the guide roller box 61, when the film 11 is located between the guide roller box 61 and the oven body 63, the multiple limiting guide rollers 62 in the guide roller box 61 can stably guide the printed film 11, ensuring that the film 11 passes smoothly from the side facing the oven body 63 to the guide roller box 61, so that the ink on the film 11 can be heated evenly.

[0055] Furthermore, the arrangement of multiple spaced air outlets 631 allows hot air to be blown more evenly onto the surface of the film 11, resulting in more uniform heating of the ink on the film 11, accelerating solvent evaporation and ink curing, and preventing localized over- or under-baking from affecting printing quality. The guide roller box 61 is fixed between the two frame side plates 2, with an opening on its side facing the oven body 63. This structure creates a relatively enclosed space before the film 11 enters the baking area of ​​the oven body 63. When the oven body 63 blows hot air through the air outlets 631 to dry the ink on the film 11, the guide roller box 61 prevents the hot air from diffusing outside the device, reducing heat loss and concentrating more heat within the baking space formed by the guide roller box 61 and the oven body 63, improving thermal efficiency and reducing energy consumption. Simultaneously, a stable temperature environment ensures uniform heating of the ink on the film 11, preventing localized temperature fluctuations due to heat loss that could affect the drying effect, thus ensuring the stability of printing quality.

[0056] like Figure 5 As shown, in order to enable the film 11 to be drawn between the guide roller box 61 and the oven body 63, film conveying channels 67 are formed between the bottom of the guide roller box 61 and the bottom of the oven body 63, and between the top of the guide roller box 61 and the top of the oven body 63.

[0057] like Figure 11 As shown, in an optional embodiment, the oven body 63 has an air inlet 632, and a heating tube assembly 65 is installed inside the oven body 63. The heating tube assembly 65 can be composed of multiple heating tubes arranged side by side (the heating tubes can be quartz heating tubes). In addition, a filter screen 64 can be detachably installed inside the oven body 63. The filter screen 64 is located between the heating tube assembly 65 and the air outlet 631. The air inlet 632 can introduce external air into the oven body 63. When external air is introduced into the oven body 63, the air first flows through the heating tube assembly 65; after being heated by the heating tube assembly 65, the hot air is filtered by the filter screen 64, thereby preventing the hot air from carrying impurities that adhere to the surface of the film 11 and thus affecting the printing quality.

[0058] It is understood that, in order to allow outside air to be introduced into the oven body 63, the air inlet 632 should be connected to an air supply pipe, the air supply pipe should be connected to a blower, and the air supply pipe can be a PVC air supply pipe.

[0059] like Figure 5 and Figure 7As shown, in an optional embodiment, support rails 24 are horizontally fixed to the inner sides of both frame side plates 2, and the support rails 24 are parallel to both sides of the oven body 63; while rollers 22 are provided on the outer wall of the oven body 63, and the rollers 22 are rolled on the support rails 24, thereby enabling the oven body 63 to move. For example, during pre-production, in order to allow the film 11 to be pulled between the guide roller box 61 and the oven body 63, the oven body 63 can move away from the guide roller box 61 along the support rails 24, thereby leaving sufficient space between the guide roller box 61 and the oven body 63 to facilitate the upward pulling of the film 11.

[0060] like Figure 7 As shown, to facilitate the movement of the oven body 63, on the front side of the oven body 63 ( Figure 7 Handles 23 are provided on both the front side (indicated by the arrow) and the side of the oven body 63 facing the frame side plate 2.

[0061] like Figure 7 As shown, in an optional embodiment, two sets of insertion rods 66 are provided on one side of the oven body 63 facing the guide roller box 61. Each set of insertion rods 66 includes multiple insertion rods 66 arranged side by side at intervals. The two sets of insertion rods 66 are movably inserted into the inner sides of the guide roller box 61 (the inner sides of the guide roller box 61 are provided with channels for the insertion rods 66). When the insertion rods 66 are fully inserted into the guide roller box 61 and no longer move, it indicates that the oven body 63 has been precisely moved to a preset position to cooperate with the guide roller box 61.

[0062] like Figure 5 and Figure 9 As shown, in an optional embodiment, locking mechanisms 25 are provided on the outer sides of both frame side plates 2. When the printing press body is working, the locking mechanisms 25 are used to fix the oven body 63, so that the oven body 63 and the guide roller box 61 maintain a stable relative position, avoiding displacement of the oven body 63 due to vibration generated during equipment operation or tension during film 11 conveying, which helps to reduce safety hazards.

[0063] Specifically, the locking mechanism 25 includes a locking rod 251, a pull rod 252, a fixing rod 253, and a limiting nut 254. The fixing rod 253 is horizontally fixed to the outer side surface of the frame side plate 2; the pull rod 252 is parallel to the fixing rod 253, and the pull rod 252 is fixed to the side of the oven body 63. The locking rod 251 can be simultaneously inserted into the pull rod 252 and the fixing rod 253, thereby achieving mechanical locking of the oven body 63 during printing operations, ensuring a stable connection between the oven body 63 and the fixedly installed frame side plate 2.

[0064] The locking rod 251 has external threads, and the locking rod 251 is threadedly connected to a limiting nut 254. At least two limiting nuts 254 are provided. When the locking rod 251 passes through both the pull rod 252 and the fixing rod 253, the limiting nut 254 is used to restrict the movement of the locking rod 251, effectively preventing the locking rod 251 from loosening or shifting due to vibration or other factors during the operation of the printing machine body, and further strengthening the locking of the locking rod 251 to the oven body 63.

[0065] like Figure 4 As shown, in an optional embodiment, the film printing apparatus for improving the production environment further includes an exhaust fan 15 and an exhaust pipe 16; the exhaust fan 15 is connected to a waste gas treatment system (e.g., an RTO regenerative thermal combustion device); the exhaust pipe 16 is connected to the frame side plate 2 and the input end of the exhaust fan 15, respectively. In this embodiment, the exhaust fan 15, exhaust pipe 16, and waste gas treatment system work together to actively collect volatile organic compounds (VOCs) generated by ink volatilization within the printing press through the exhaust pipe 16. These VOCs are then transported by the exhaust fan 15 to the waste gas treatment system for efficient treatment (e.g., an RTO regenerative thermal oxidizer can decompose the organic compounds into harmless substances), reducing the spread of VOCs into the workshop environment from the source. Simultaneously, the exhaust pipe 16 is connected to the side plate 2 of the frame, allowing for targeted collection of waste gas within the printing area enclosed by the side plate 2, improving waste gas collection efficiency. Combined with the baffle curtain 7 and the rear baffle 8, this forms a dual protection of "blocking + active extraction," further improving the production environment, reducing health hazards to operators, and meeting environmental emission requirements.

[0066] In an optional embodiment, a dust removal and filtration device (e.g., a dust collector bag) can be installed at the input end of the exhaust fan 15. The dust removal and filtration device can intercept impurities carried in the gas, prevent impurities from entering the exhaust fan 15, reduce impermeable wear, bearing jamming and other failures, extend the service life of the exhaust fan 15 and ensure the stable operation of the exhaust fan 15.

[0067] like Figure 10 As shown, in an optional embodiment, multiple traction rollers 17 are rotatably arranged below the top of the top cover 1; the traction rollers 17 are located above the printing press body. The traction rollers 17 are used to pull the film 11 into the printing press body, or to pull the dried film 11 out of the oven assembly 6. A gap is left between the bottom of the top cover 1 and the traction rollers 17.

[0068] like Figure 10As shown, in an optional embodiment, the film printing apparatus for improving the production environment further includes a film unwinding assembly 18 and a film rewinding assembly 19; the printing machine body is located between the film unwinding assembly 18 and the film rewinding assembly 19, enabling integrated operation of the film 11 from unwinding, printing to rewinding. The film unwinding assembly 18 unfolds the roll of plastic film 11 to be printed and conveys it to the printing machine body, while the film rewinding assembly 19 is driven by a motor, providing power for the traction and transfer of the film 11 between the printing machine body and the printing machine body.

[0069] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A film printing apparatus for improving the production environment, comprising a printing machine body and a top cover (1) fixedly disposed above the printing machine body; the printing machine body comprising two vertically arranged frame side plates (2), a printing plate roller (3) and a printing roller (4) rotatably disposed between the two frame side plates (2), an ink trough (5) disposed between the two frame side plates (2) and below the printing plate roller (3), and an oven assembly (6) disposed between the two frame side plates (2) and above the printing roller (4); characterized in that, The printing press body also includes: Air baffle (7), the upper side of which is located at the bottom of the oven assembly (6), the air baffle (7) is located in front of the ink tank (5), and the lower side of the air baffle (7) extends downward to the bottom of the ink tank (5). The rear baffle (8) is vertically arranged and is fixedly connected to the rear side of the two frame side plates (2); An observation window (9) is movably mounted on the rear baffle (8); Tensioning roller (10) is rotatably disposed between two frame side plates (2) and is used to tension the film (11) pulled between the printing plate roller (3) and the printing roller (4).

2. The film printing apparatus for improving the production environment according to claim 1, characterized in that, The oven assembly (6) is fixedly provided with a first hanging rod (12) at the bottom, and the first hanging rod (12) is parallel to the printing plate roller (3); the upper side of the air curtain (7) is fixed on the first hanging rod (12).

3. The film printing apparatus for improving the production environment according to claim 2, characterized in that, The lower side of the air curtain (7) is fixedly connected to a second hanging rod (13), which is parallel to the first hanging rod (12).

4. The film printing apparatus for improving the production environment according to claim 1, characterized in that, Two support plates (14) are fixedly connected to the front side of the oven assembly (6), and the support plates (14) are provided with arc grooves (141) for supporting the second hanging rod (13).

5. The film printing apparatus for improving the production environment according to claim 1, characterized in that, The oven assembly (6) includes a guide roller box (61), multiple limiting guide rollers (62) rotatably disposed in the guide roller box (61), and an oven body (63) located in front of the guide roller box (61); the guide roller box (61) is fixedly disposed between two frame side plates (2), and the side of the guide roller box (61) facing the oven body (63) is provided with an opening (611); the side of the oven body (63) facing the guide roller box (61) is provided with an air outlet.

6. The film printing apparatus for improving the production environment according to claim 1, characterized in that, It also includes an exhaust fan (15) and an exhaust pipe (16); the exhaust fan (15) is connected to a waste gas treatment system; the exhaust pipe (16) is connected to the side plate (2) of the frame and the input end of the exhaust fan (15).

7. The film printing apparatus for improving the production environment according to claim 1, characterized in that, Multiple traction rollers (17) are rotatably arranged below the top of the top cover (1); the traction rollers (17) are located above the printing press body.

8. The film printing apparatus for improving the production environment according to claim 1, characterized in that, It also includes a film unwinding assembly (18) and a film winding assembly (19); the printing press body is located between the film unwinding assembly (18) and the film winding assembly (19).

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