Ink supply mechanism for film monochrome printing machine

Abstract

The utility model belongs to the technical field of thin film printing, and specifically relates to an ink supply mechanism for a thin film monochrome printing machine, including a frame and an ink supply slot, an ink roller is rotatably provided on the frame, the ink supply slot is slidably connected to the frame, a lifting mechanism for driving the ink supply slot to rise and fall is provided on the frame, two baffles are slidably provided on the top of the ink supply slot, an opening is provided between the two baffles, the lower part of the ink roller is located in the opening, and two groups of gear rack transmission mechanisms are also included, the two groups of gear rack transmission mechanisms are respectively connected to the two baffles, and a liquid level sensor is also provided on the inner side wall of the ink supply slot near the bottom. The utility model does not require staff to observe the amount of ink in the ink supply slot in real time, nor does it require frequent addition of ink to the ink supply slot, and is more convenient to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of film printing, and in particular relates to an ink supply mechanism for a film monochrome printing machine. Background Art

[0002] During the processing and manufacturing of the film, it is usually necessary to print the film, and print the company name or film model on one side of the film. Existing film monochrome printing machines generally use gravure printing.

[0003] Gravure printing means that the image part of the printing plate is concave, while the blank part is on the same plane as the outer circle of the printing plate cylinder. When printing, the printing plate cylinder is inked on the entire surface, and the ink on the blank part of the plate is scraped off with a scraper, leaving the ink on the image part, and then passing through the plastic film, the impression cylinder is pressed on the back of the plastic film, so that the ink in the concave part is directly transferred to the plastic film, and finally the plastic film is rolled up by the winding part.

[0004] For example, a gravure printing machine for printing plastic film with publication number CN219312265U includes a first lead screw, a first rotation driving component, a first guide rod, a first slider, a second slider, a mounting block, a third slider, and a second driving component. The printing machine can conveniently realize the replacement of the printing cylinder; the rotation of the first lead screw can synchronously drive the impression cylinder and the inking cylinder to move in opposite directions, so that printing cylinders of different diameters can be replaced between the printing cylinder and the inking cylinder; the position of the scraper can be adjusted through the second driving component, so that the printing cylinder can re-contact the new printing cylinder after the printing cylinder is replaced.

[0005] However, the ink supply mechanism in the above-mentioned printing machine is an open type. Since the ink used in the film printing machine is mainly oil-based ink, which is volatile, it is easy to pollute the production workshop environment and endanger the health of the operator. On the other hand, during the printing process, the staff needs to keep an eye on the amount of ink in the ink tank to prevent the ink from being too little and the ink roller from taking up ink unevenly, which affects the printing quality. Utility Model Content

[0006] The utility model aims to provide an ink supply mechanism for a film monochrome printer to solve the problems raised in the above background technology.

[0007] In order to achieve the above technical purpose, the technical solution of the utility model is:

[0008] An ink supply mechanism for a film monochrome printing press comprises a frame and an ink supply slot, an ink supply roller is rotatably provided on the frame, the ink supply slot is slidably connected to the frame, a lifting mechanism for driving the ink supply slot to rise and fall is provided on the frame, two baffles are slidably provided on the top of the ink supply slot, an opening is provided between the two baffles, the lower part of the ink supply roller is located in the opening, and two groups of gear rack transmission mechanisms are also included, the two groups of gear rack transmission mechanisms are respectively connected to the two baffles, and a liquid level sensor is also provided on the inner wall of the ink supply slot near the bottom.

[0009] As an improvement, the lifting mechanism is provided with two groups, the two groups of lifting mechanisms are respectively located near the two sides of the ink supply slot, and the two groups of lifting mechanisms are driven by the same rotation drive mechanism;

[0010] The lifting mechanism comprises a fixed block fixed on the inner side wall of the frame, the fixed block is threadedly connected with a screw rod, a lifting block is rotatably provided at the bottom of the screw rod, and the lifting block is fixedly connected to the ink supply slot through a connecting rod.

[0011] As a further improvement, the rotation drive mechanism includes a first drive motor, the output end of the first drive motor is connected to a worm, threads are respectively provided on the worm near both ends, and worm wheels are transmission-connected to the worm near both ends. The two worm wheels are respectively coaxially fixedly connected to the screws of the two groups of lifting mechanisms.

[0012] As a further improvement, the rack and pinion transmission mechanism includes a gear coaxially fixedly connected to the worm, the gear is meshed with a rack, and the two racks of the two groups of rack and pinion transmission mechanisms are respectively fixedly connected to the two baffles.

[0013] As a further improvement, a stirring mechanism is provided inside the ink supply groove, and the stirring mechanism includes a first transmission wheel and a second transmission wheel rotatably arranged in the ink supply groove, a transmission belt is provided between the first transmission wheel and the second transmission wheel, a stirring plate is fixedly provided at the bottom of the transmission belt, and the first transmission wheel is driven by a second drive motor.

[0014] Due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0015] The ink supply mechanism for a film monochrome printing machine provided by the utility model gradually drives the ink supply slot to rise through the lifting mechanism during the printing process, so that the ink supply roller can always contact the ink in the ink supply slot. When the amount of ink remaining in the ink supply slot is very little, the liquid level sensor sends a signal to remind the staff to add ink to the ink supply slot. The staff does not need to observe the amount of ink in the ink supply slot in real time, nor does it need to add ink to the ink supply slot frequently, which makes it more convenient to use.

[0016] By setting up two baffles, the volatilization of ink in the ink supply slot can be reduced to prevent affecting the air quality of the working environment. In addition, when the worm rotates, it drives the two gears to rotate, and then drives the two racks and the two baffles to descend. When the ink supply slot rises, the two baffles descend, which can prevent the volatilization of ink and will not affect the normal operation of the inking roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of this embodiment;

[0018] Figure 2 is another structural schematic diagram of this embodiment;

[0019] Figure 3 Schematic diagram of the structure of the lifting mechanism in this embodiment;

[0020] Figure 4 Schematic diagram of the internal structure of the ink supply tank in this embodiment;

[0021] Figure 5 is a schematic structural diagram of the stirring mechanism in this embodiment;

[0022] Wherein: 1-frame, 2-ink supply slot, 3-ink roller, 4-baffle, 5-fixed block, 6-screw, 7-lifting block, 8-connecting rod, 9-first drive motor, 10-worm, 11-worm wheel, 12-fixed plate, 13-gear, 14-rack, 15-second drive motor, 16-first transmission wheel, 17-second transmission wheel, 18-transmission belt, 19-stirring plate. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with the specific implementation methods and the accompanying drawings. The accompanying drawings are only for illustrative purposes and are only schematic diagrams, not actual drawings, and should not be construed as limiting the present application. In order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. It is understandable to those skilled in the art that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0024] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on the present application. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0025] like Figure 1-5 As shown, an ink supply mechanism for a film monochrome printing machine includes a frame 1 and an ink supply slot 2, an ink supply roller 3 is rotatably provided on the frame 1, the ink supply slot 2 is slidably connected to the frame 1, two baffles 4 are slidably provided on the top of the ink supply slot 2, an opening is provided between the two baffles 4, the lower part of the ink supply roller 3 is located in the opening, and the two baffles 4 can close the ink supply slot 2 to prevent the ink in the ink supply slot 2 from volatilizing and affecting the air quality of the working space.

[0026] The frame 1 is provided with a lifting mechanism for driving the ink supply slot 2 to rise and fall, and the lifting mechanism includes a fixed block 5 fixed on the inner wall of the frame 1, and an internal thread is provided in the fixed block 5. The internal thread of the fixed block 5 is connected to a screw rod 6, and a lifting block 7 is rotatably provided at the bottom of the screw rod 6. The lifting block 7 is fixedly connected to the ink supply slot 2 through a connecting rod 8. During the rotation of the screw 6, it will rise along the axis of the fixed block 5, and at the same time drive the lifting block 7, the connecting rod 8 and the ink supply slot 2 to rise.

[0027] Preferably, two groups of lifting mechanisms are provided, and the two groups of lifting mechanisms are respectively located near the two sides of the ink supply slot 2. The two groups of lifting mechanisms are driven by the same rotating drive mechanism, and the rotating drive mechanism is used to drive the two screws 6 of the two groups of lifting mechanisms to rotate synchronously, so that the ink supply slot 2 can be raised or lowered more stably.

[0028] Specifically, the rotation drive mechanism includes a first drive motor 9, the output end of the first drive motor 9 is fixedly connected to a worm 10, external threads are respectively provided on the worm 10 near the two ends, worm wheels 11 are respectively meshed near the two ends of the worm 10, and the two worm wheels 11 are respectively coaxially fixedly connected to the two screws 6 of the two sets of lifting mechanisms. In the process of the first drive motor 9 driving the worm 10 to rotate, the two worm wheels 11 and the two screws 6 are synchronously driven to rotate.

[0029] Preferably, a fixing plate 12 is fixedly provided on the lifting block 7 of one set of lifting mechanisms, the other end of the fixing plate 12 is fixedly connected to the outer wall of the ink supply slot 2 , and the first driving motor 9 is fixed on the fixing plate 12 .

[0030] In this embodiment, two sets of gear rack transmission mechanisms are also included. The gear rack transmission mechanism includes a gear 13 coaxially fixedly connected to the worm 10, and the gear 13 is meshed with a rack 14. The racks 14 of the two sets of gear rack transmission mechanisms are respectively fixedly connected to the two baffles 4. When the worm 10 rotates, the two gears 13 are driven to rotate at the same time. The two gears 13 drive the two racks 14 to rise or fall, thereby driving the two baffles 4 to rise or fall.

[0031] Preferably, one end of the two baffles 4 away from the rack 14 is slidably connected to the inner wall of the ink supply slot 2, and can be slidably connected by a slider and a slide rail, or other methods that can achieve a sliding connection.

[0032] In this embodiment, a stirring mechanism is also provided at the inner bottom of the ink supply slot 2, and the stirring mechanism includes a first transmission wheel 16 and a second transmission wheel 17 which are rotatably arranged in the ink supply slot 2, and a transmission belt 18 is connected between the first transmission wheel 16 and the second transmission wheel 17 for transmission, and a stirring plate 19 is fixedly provided at the bottom of the transmission belt 18. The first transmission wheel 16 is driven by a second drive motor 15, and the second drive motor 15 is fixedly arranged on the outer wall of the ink supply slot 2. The first transmission wheel 16 and the second transmission wheel 17 are driven to rotate by the second drive motor 15, thereby driving the stirring plate 19 to move, so as to stir the ink at the bottom of the ink supply slot 2 to prevent the ink in the ink supply slot 2 from being deposited.

[0033] Preferably, the end of the ink supply slot 2 away from the lifting mechanism is slidably connected to the frame 1, and can be specifically slidably connected through a slider and a slide rail, or other methods that can achieve a sliding connection.

[0034] In this embodiment, a liquid level sensor is provided on the inner wall of the ink supply slot 2 near the bottom. When the ink in the ink supply slot 2 is reduced to a certain amount, the liquid level sensor sends a signal to remind the staff to add ink to the ink supply slot 2. Preferably, the liquid level sensor can be electrically connected to an alarm. When the liquid level sensor detects that the amount of ink in the ink supply slot 2 is too little, the alarm sends an alarm to remind the staff.

[0035] Preferably, the baffle 4 can be arranged at an angle, which can provide a better shielding effect on the ink supply slot 2 and further reduce the volatilization of the ink.

[0036] When the present embodiment is in use, the ink supply slot 2 is filled with ink, and the ink is transferred to the plate roller through the rotation of the ink roller 3 to realize the printing of the film. During the printing process, the ink in the ink supply slot 2 will gradually decrease. According to the printing speed, the rotation speed of the first drive motor 9 is adjusted. The first drive motor 9 drives the worm 10 to rotate, and then drives the two worm wheels 11 and the two screws 6 to rotate. The screws 6 rise during the rotation process, and then drive the lifting block 7, the connecting rod 8 and the ink supply slot 2 to gradually rise to prevent the ink roller 3 from not being stained by the ink in the ink supply slot 2. During the rising process of the ink supply slot 2, two baffles 4 are provided. In order to prevent the baffles 4 from contacting the outer wall of the ink roller 3 and affecting the work of the ink roller 3, during the rotation of the worm 10, the two gears 13 are driven to rotate at the same time. The rotation of the two gears 13 drives the two racks 14 and the two baffles 4 to descend, so that the height of the baffle 4 remains fixed and does not affect the work of the ink roller 3.

[0037] In this embodiment, the thread directions of the worm gear and the screw can be set so that when the screw drives the ink supply slot to rise, the rack drives the baffle to descend.

[0038] The utility model does not require staff to monitor the amount of ink in the ink supply slot in real time. The ink supply slot is driven to rise by the lifting mechanism, so that the ink in the ink supply slot can be used for a longer time, and there is no need to frequently add ink to the ink supply slot. The two baffles can prevent the ink from volatilizing.

[0039] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. An ink supply mechanism for a film monochrome printer, comprising a frame and an ink supply slot, wherein an ink supply roller is rotatably provided on the frame, characterized in that: The ink supply slot is slidably connected to the frame, and the frame is provided with a lifting mechanism for driving the ink supply slot to rise and fall. Two baffles are slidably provided on the top of the ink supply slot, and an opening is provided between the two baffles. The lower part of the ink supply roller is located in the opening, and also includes two groups of gear rack transmission mechanisms, which are respectively connected to the two baffles. A liquid level sensor is also provided on the inner wall of the ink supply slot near the bottom.

2. The ink supply mechanism for a film monochrome printer according to claim 1, characterized in that: The lifting mechanism is provided with two groups, the two groups of lifting mechanisms are respectively located near the two sides of the ink supply slot, and the two groups of lifting mechanisms are driven by the same rotating drive mechanism; The lifting mechanism comprises a fixed block fixed on the inner side wall of the frame, the fixed block is threadedly connected with a screw rod, a lifting block is rotatably provided at the bottom of the screw rod, and the lifting block is fixedly connected to the ink supply slot through a connecting rod.

3. The ink supply mechanism for a film monochrome printer according to claim 2, characterized in that: The rotation drive mechanism includes a first drive motor, the output end of which is connected to a worm, threads are respectively provided on the worm near both ends, and worm wheels are transmission-connected on both ends of the worm, and the two worm wheels are respectively coaxially fixedly connected to the screws of the two groups of lifting mechanisms.

4. The ink supply mechanism for a film monochrome printer according to claim 3, characterized in that: The rack and pinion transmission mechanism comprises a gear coaxially fixedly connected to the worm, the gear is meshed with a rack, and the two racks of the two sets of rack and pinion transmission mechanisms are respectively fixedly connected to the two baffles.

5. The ink supply mechanism for a film monochrome printer according to any one of claims 1 to 4, characterized in that: A stirring mechanism is provided inside the ink supply slot, and the stirring mechanism includes a first transmission wheel and a second transmission wheel rotatably arranged in the ink supply slot, a transmission belt is provided between the first transmission wheel and the second transmission wheel, a stirring plate is fixedly provided at the bottom of the transmission belt, and the first transmission wheel is driven by a second driving motor.

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