A film taking device and a film printer

Abstract

The application discloses a film taking device and a film printer, and relates to the technical field of printing equipment. The film taking device comprises a base, a rotating assembly, a suction cup assembly and a lifting assembly. The rotating assembly is rotatably installed on the base. The suction cup assembly is connected to the rotating assembly. The lifting assembly can cooperate with the rotating assembly to realize the lifting of the suction cup. The suction cup assembly comprises a suction cup holder, a suction cup shaft and a suction cup for sucking the film. When the film taking device works, the lifting assembly can drive the rotating assembly to swing relative to the base, so that the suction cup assembly installed on the rotating assembly swings with the rotating assembly to realize the lifting or the lowering, so that the suction cup can adapt to different film taking heights to suck the film at different height positions. When the suction cup swings downward to touch the film, the suction cup can rotate around the axis of the suction cup shaft, so that the suction cup can be flatly attached to the surface of the film. Therefore, the suction cup can better adsorb the film, so that the success rate of the suction cup for sucking the film can be improved.

Description

Technical Field

[0001] This invention relates to the field of printing equipment technology, and in particular to a film picker and a film printer. Background Technology

[0002] In related technologies, medical image printers are typically thermal film printers. The working principle of a thermal film printer is that a semiconductor heating element is installed on the print head. The print head heats up and comes into contact with the thermal printing film to print the desired pattern. Its principle is similar to that of a thermal fax machine; the image is generated through a chemical reaction within the film caused by heating. Medical thermal film printers usually use a film pickup device to pick up the film. However, as the suction cup of the pickup device approaches the film, the suction direction may change, causing the suction cup to fail to properly adhere to the film, making it difficult for the film to be held by the suction cup. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes a film-collecting device capable of effectively adsorbing film.

[0004] The present invention also proposes a film printer having the above-described film taking device.

[0005] A film-taking device according to a first aspect embodiment of the present invention includes:

[0006] Base;

[0007] A rotating assembly is rotatably mounted on the base;

[0008] The suction cup assembly is connected to the rotating assembly;

[0009] The lifting component can cooperate with the rotating component to realize the lifting of the suction cup component;

[0010] The suction cup assembly includes a suction cup frame, a suction cup shaft, and a suction cup for picking up film. The suction cup is connected to the suction cup shaft, and the suction cup shaft is rotatably mounted on the suction cup frame.

[0011] A film printer according to an embodiment of the present invention has at least the following beneficial effects:

[0012] When the film picking device is working, the lifting component can drive the rotating component to swing relative to the base, so that the suction cup component installed on the rotating component swings with the rotating component to rise or fall. This allows the suction cup to adapt to different film picking heights to pick up films at different heights, greatly improving the convenience of use. Moreover, when the suction cup swings downward and touches the film, the suction cup can rotate around the axis of the suction cup shaft, so that the suction cup can be flat against the surface of the film. Therefore, the suction cup can better adhere to the film, thereby improving the success rate of the suction cup picking up the film.

[0013] According to some embodiments of the present invention, the film-retrieving device further includes a balancing frame, the balancing frame being provided with a ramp section that slopes from bottom to top and backward, the suction cup assembly being provided with a parallelogram linkage mechanism, the parallelogram linkage mechanism including a balancing rod and a connecting rod arranged opposite to each other, the connecting rod being connected to the suction cup shaft, and the balancing rod being able to translate along the ramp section.

[0014] According to some embodiments of the present invention, the balance bar is arranged in a vertical direction, and the connecting rod is arranged parallel to the balance bar to keep the suction cup horizontal.

[0015] According to some embodiments of the present invention, a rolling element is mounted at the end of the balance bar, the rolling element being capable of rolling along the ramp section.

[0016] According to some embodiments of the present invention, the suction cup assembly is further provided with a torsion spring, the torsion spring being sleeved on the outer wall of the suction cup shaft, one end of the torsion spring abutting against the suction cup frame, and the other end abutting against the connecting rod.

[0017] According to some embodiments of the present invention, the suction cup assembly includes a fourth rod, the suction cup frame extends to form a fifth rod, the two ends of the fourth rod are respectively rotatably connected to the connecting rod and the balance rod, the middle part of the balance rod is rotatably connected to the fifth rod, and the balance rod, the connecting rod, the fourth rod and the fifth rod constitute the parallelogram linkage mechanism.

[0018] According to some embodiments of the present invention, the balancing frame includes a first frame and a second frame, the first frame being fixedly connected to the base, and the second frame being slidably connected to the first frame.

[0019] According to some embodiments of the present invention, the first frame is provided with a sliding groove, and the second frame is provided with a sliding block that can be slidably connected to the sliding groove.

[0020] According to some embodiments of the present invention, the rotating assembly includes a rotating frame and a telescopic track, the telescopic track includes a fixed track and a sliding track, the fixed track is fixedly connected to the rotating frame, the sliding track is slidably connected to the fixed track, and the suction cup assembly is connected to the sliding track.

[0021] A film printer according to a second aspect of the present invention includes a film taking device according to a first aspect of the present invention.

[0022] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] Additional aspects and advantages of the invention will become apparent and readily understood in conjunction with the following description of the embodiments, in which:

[0024] Figure 1 This is a schematic diagram of the suction cup assembly of the film picking device of a film printer according to some embodiments of the present invention when it is not picking up a film;

[0025] Figure 2 for Figure 1 Another perspective illustration;

[0026] Figure 3 This is a schematic diagram of the suction cup assembly of the film picking device of a film printer according to some embodiments of the present invention picking up the film downwards;

[0027] Figure 4 for Figure 3 Another perspective illustration;

[0028] Figure 5 This is a partial exploded view of the slice-taking device according to some embodiments of the present invention;

[0029] Figure 6 This is a schematic diagram of the suction cup assembly of a film printer according to some embodiments of the present invention;

[0030] Figure 7 This is a schematic diagram of the rotating assembly of a film printer according to some embodiments of the present invention (the telescopic track is omitted);

[0031] Figure 8 This is a schematic diagram of the structure of the cam and transmission disk of a film printer according to some embodiments of the present invention;

[0032] Figure 9 This is a schematic diagram of the structure of the movable frame of a film printer according to some embodiments of the present invention;

[0033] Figure 10 This is a schematic diagram of the balance frame of a film printer according to some embodiments of the present invention.

[0034] The attached icons are numbered as follows:

[0035] Base 100; clearance hole 110;

[0036] Rotating assembly 200; first rod 210; first movable end 211; rotating frame 220;

[0037] Suction cup assembly 300; suction cup 310; suction cup frame 320; suction cup shaft 330; connecting rod 331; torsion spring 332; fourth rod 340; fifth rod 350; balance bar 360; rolling element 361; third rod 370; third movable end 371;

[0038] Lifting assembly 400; Cam 410; Convex arc segment 411; Inclined segment 412; Transmission disc 420; First groove segment 421; Second groove segment 422; Moving frame 430; Main body 431; Inclined rod 432; Inclined groove 433; Second rod 434; Second movable end 435; Elastic reset component 436; Detection sensor 440;

[0039] Balance frame 500; first frame 510; slide 511; second frame 520; ramp section 521; sliding block 522;

[0040] Air pump 600; Pipeline 610; Solenoid valve 620;

[0041] Drive mechanism 700. Detailed Implementation

[0042] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0043] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0044] In the description of this invention, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0045] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0046] In related technologies, medical image printers are typically thermal film printers. The working principle of a thermal film printer is that a semiconductor heating element is installed on the print head. The print head heats up and contacts the thermal printing film, thus printing the desired image. Its principle is similar to that of a thermal fax machine; the image is generated through a chemical reaction within the film caused by heating. Traditional medical thermal film printers use a film pickup device to pick up the film. However, this device can only pick up film at a set height, so the film height often needs to be adjusted, causing inconvenience.

[0047] Therefore, this invention proposes a film-retrieving device that can adapt to different film-retrieving heights, thereby improving ease of use.

[0048] Reference Figures 1 to 10 This invention discloses a film picking device applied to a film printer. The device picks up film placed in a film cassette and then conveys it to the printing unit via a conveying device, thereby printing images and other content onto the film. Specifically, the film picking device includes a base 100, a rotating assembly 200, a suction cup assembly 300, and a lifting assembly 400. The base 100 is generally plate-shaped and is mounted on the base of the film printer. The rotating assembly 200 is rotatably mounted on the base 100 and can swing upwards or downwards relative to the base 100. The suction cup assembly 300 is connected to the rotating assembly 200 and is equipped with a suction cup 310 for picking up film. The suction cup 310 is connected to an air pump 600 via a pipe 610. The pipe 610 can be controlled to open and close by a solenoid valve 620. When the solenoid valve 620 controls the pipe 610 to open, the suction cup generates negative pressure, thereby adsorbing the film and transferring it to the conveying station. The lifting assembly 400 can cooperate with the rotating assembly 200 to achieve the lifting and lowering of the suction cup. The lifting assembly 400 can be a cylinder lifting mechanism, for example, the lifting and lowering of the suction cup can be achieved by the extension and retraction of a push rod driving the rotating assembly 200 to swing. Of course, the lifting assembly 400 can also be other types of lifting mechanisms.

[0049] When the film taking device is working, the lifting component 400 can drive the rotating component 200 to swing relative to the base 100, so that the suction cup component 300 installed on the rotating component 200 swings with the rotating component 200 to rise or fall, so that the suction cup 310 can adapt to different film taking heights to pick up films at different heights, greatly improving the convenience of use.

[0050] Reference Figure 2 , Figure 7 and Figure 8 It is understood that in some embodiments of the present invention, the lifting assembly 400 includes a cam 410 and a drive mechanism 700, which can drive the cam 410 to rotate. The drive mechanism 700 can be a motor, which drives the cam 410 to rotate via a conveyor belt, thereby facilitating the layout and installation of the motor. The rotating assembly 200 includes a rotating frame 220, which is provided with a first movable end 211, which can abut against the cam 410. Since the cam 410 is an eccentric structural component, when the cam 410 rotates, the first movable end 211 moves along the outer periphery of the cam 410 and can swing up and down relative to the base 100, thereby driving the rotating frame 220 to swing up and down, causing the suction cup assembly 300 to swing up and down as well, thereby adjusting the height position of the suction cup, so that the suction cup can adsorb films at different height positions. Of course, the lifting assembly 400 can also be provided with a detection sensor 440, which can detect the angle of rotation of the cam 410, thereby accurately controlling the swing position of the suction cup assembly 300.

[0051] Reference Figure 8It is understood that in some embodiments of the present invention, the outer periphery of the cam 410 is formed with a convex arc segment 411 and an inclined segment 412. Along the rotation direction of the cam 410, the outer diameter of the convex arc segment 411 gradually increases. The inclined segment 412 is approximately straight, and its two ends connect to the two ends of the convex arc segment 411. When the drive mechanism 700 drives the cam 410 to rotate, the first movable end 211 moves along the convex arc segment 411 in the opposite direction to the rotation direction of the cam 410. At this time, the outer diameter of the convex arc segment 411 gradually decreases. Under the action of gravity, the first movable end 211 can swing downward along the convex arc segment 411 and gradually approach the rotation center of the cam 410, thereby causing the rotating frame 220 to drive the suction cup assembly 300 to swing downward as well. When the first movable end 211 moves to the end with the smallest outer diameter of the convex arc segment 411, the suction cup descends to the lowest position. Of course, if the suction cup has already touched the film along the way, the first movable end 211 stops swinging downward due to the support of the film. As the first movable end 211 continues to move to the inclined section 412, the distance between the inclined section 412 and the rotation center of the cam 410 gradually increases along the direction of movement of the first movable end 211. This allows the first movable end 211 to swing upward along the inclined section 412, thereby driving the suction cup upward. This allows the film adsorbed by the suction cup to separate from the remaining films in the film cassette, and then move to the conveying station. It should be noted that, in this embodiment, the cam 410, by setting a convex arc section 411, allows the first movable end 211 to swing downward as the outer diameter of the convex arc section 411 gradually decreases. This makes the downward movement of the suction cup smoother and reduces collision damage to the film. At the same time, by setting an inclined section 412, the cam 410 allows the first movable end 211 to rise rapidly along the inclined section 412 after the suction cup adsorbs the film, thereby driving the suction cup away from the film cassette quickly. This helps to quickly separate the film adsorbed by the suction cup from the film in the film cassette and reduces film adhesion.

[0052] Reference Figure 7 It is understood that in some embodiments of the present invention, the rotating frame 220 is provided with a first rod 210 extending forward from bottom to top, and a first movable end 211 is rotatably mounted on the end of the first rod 210. The first movable end 211 can be a bearing or other rotating part. The first movable end 211 can roll along the outer periphery of the cam 410, thereby driving the rotating frame 220 to swing. At the same time, it helps to reduce the frictional resistance between the first movable end 211 and the cam 410, making the swing of the rotating frame 220 smoother.

[0053] It should be noted that the distance between the suction cup 310 and the film cassette may be relatively far. Therefore, in some embodiments of the present invention, the rotating assembly 200 further includes a telescopic track, which includes a fixed rail and a sliding rail. The fixed rail is fixedly connected to the rotating frame 220, and the sliding rail is slidably connected to the fixed rail. The suction cup assembly 300 is connected to the end of the sliding rail away from the fixed rail. When the rotating frame 220 swings downward, the sliding rail can extend forward relative to the fixed rail under the action of gravity, thereby driving the suction cup assembly 300 forward and closer to the film cassette, increasing the distance the suction cup can move. Of course, two sets of telescopic tracks can be provided. The fixed rails of the two sets of telescopic tracks are connected to both ends of the rotating frame 220, and the sliding rails of the two sets of telescopic tracks are connected to both ends of the suction cup assembly 300, thereby making the force on the suction cup assembly 300 more balanced and the extension and retraction more stable.

[0054] Reference Figure 4 and Figure 9 It is understood that, in order to make the extension and retraction of the sliding rail more reliable, in some embodiments of the present invention, the lifting assembly 400 includes a movable frame 430 and a transmission disk 420. The movable frame 430 is movable and mounted on the base 100. The movable frame 430 is provided with a second movable end 435 and an inclined groove 433. The inclined groove 433 is inclined from bottom to top and backward. The suction cup assembly 300 is provided with a third movable end 371 movably mounted on the inclined groove 433. The transmission disk 420 is provided with a transmission groove. The second movable end 435 is movably mounted on the transmission groove. The driving mechanism 700 can drive the transmission disk 420 to rotate, so as to drive the second movable end 435 to move in the transmission groove and thus move the movable frame 430 back and forth. Specifically, when the movable frame 430 moves forward, it can drive the third movable end 371 to move forward along the inclined groove 433, thereby causing the suction cup assembly 300 to drive the sliding rail to extend forward; when the movable frame 430 moves backward, it can drive the third movable end 371 to move backward along the inclined groove 433, thereby causing the suction cup assembly 300 to drive the sliding rail to retract backward to the fixed rail.

[0055] Reference Figure 9 Specifically, the movable frame 430 has a main body 431 arranged in the front-to-back direction. A diagonal rod 432 is connected to one side of the main body 431, and a diagonal groove 433 is formed on the diagonal rod 432. A second rod 434 extending downward is connected to the other side of the main body 431. A second movable end 435 is rotatably mounted on the end of the second rod 434 away from the main body 431. The second movable end 435 can be a bearing or other rotating part. The second movable end 435 can roll along the inner wall of the transmission groove, thereby driving the movable frame 430 to move back and forth. At the same time, it helps to reduce the frictional resistance between the second movable end 435 and the transmission disc 420, making the back-to-back movement of the movable frame 430 smoother.

[0056] Reference Figure 8It is understood that in some embodiments of the present invention, the transmission groove has a first groove segment 421 and a second groove segment 422. When the transmission disk 420 rotates, it can drive the second movable end 435 to move forward through the first groove segment 421 and drive the second movable end 435 to move backward through the second groove segment 422. Specifically, the first groove segment 421 and the second groove segment 422 are roughly figure-eight shaped. The rotating disk rotates counterclockwise. Along the rotation direction of the transmission disk 420, the distance between at least a portion of the first groove segment 421 and the rotation center of the transmission disk 420 gradually increases. When the second movable end 435 moves within the first groove segment 421, it moves in the opposite direction relative to the first groove segment 421, causing the second movable end 435 to move forward and gradually approach the rotation center of the transmission disk 420. Along the rotation direction of the transmission disk 420, the distance between at least a portion of the second groove segment 422 and the rotation center of the transmission disk 420 gradually decreases. When the second movable end 435 moves within the second groove segment 422, it moves in the opposite direction relative to the second groove segment 422, causing the second movable end 435 to move backward and gradually move away from the rotation center of the rotating disk. Of course, the first groove segment 421 and the second groove segment 422 can also be in the form of straight grooves, with an arc segment used for transition connection between the two straight grooves, which can also achieve the above effect.

[0057] Reference Figure 8 It is understood that in some embodiments of the present invention, the transmission disk 420 and the cam 410 can be coaxially connected, so that the drive mechanism 700 can synchronously drive the transmission disk 420 and the cam 410 to rotate. At the same time, the setting positions of the convex arc segment 411 and the inclined segment 412 of the cam 410 are related to the setting positions of the first groove segment 421 and the second groove segment 422 of the rotating disk. When the first movable end 211 swings downward in the convex arc segment 411, the second movable end 435 can move forward in the first groove segment 421, so that the turntable assembly can move downward and forward at the same time through the telescopic track, so that the suction cup can quickly approach the film cassette at a distance. When the first movable end 211 swings upward in the inclined segment 412, the second movable end 435 can move backward in the first groove segment 421, so that the turntable assembly can move upward and backward at the same time through the telescopic track, so that the suction cup can quickly move to the conveying station after picking up the film.

[0058] Reference Figure 9 It is understood that, in order to ensure that the movable frame 430 can return to its original position after moving back and forth, in some embodiments of the present invention, the lifting assembly 400 further includes an elastic reset member 436, which is used to drive the movable frame 430 back to its original position. Of course, the elastic reset member 436 can also apply a preload to the movable frame 430, making the movable frame 430 move more smoothly and less prone to shaking.

[0059] It is understood that in some embodiments of the present invention, the elastic reset member 436 includes a first spring and a second spring. One end of the first spring is connected to the front end of the movable frame 430 and the other end is connected to the base 100. One end of the second spring is connected to the rear end of the movable frame 430 and the other end is connected to the base 100. When the movable frame 430 moves forward, the first spring is compressed and deformed by pressure, and the second spring is stretched and deformed by tension. At this time, both the first spring and the second spring can apply a backward elastic force to the movable frame 430, thereby making the movable frame 430 more balanced in force and less prone to shaking during movement.

[0060] It should be noted that when the suction cup assembly 300 swings downwards along with the rotating assembly 200, the suction direction of the suction cup also changes, causing the suction cup to be unable to properly adhere to the film, making it difficult for the film to be picked up by the suction cup. Therefore, refer to... Figure 1 and Figure 6 In some embodiments of the present invention, the suction cup assembly 300 further includes a suction cup frame 320 and a suction cup shaft 330. The number of suction cups is two, but other numbers are also possible. The two suction cups are respectively connected to both ends of the suction cup shaft 330, which is rotatably mounted on the suction cup frame 320. When the suction cup swings downwards and touches the film, the suction cup can rotate around the axis of the suction cup shaft 330, allowing it to adhere flat to the surface of the film. Therefore, the suction cup can better adhere to the film, thereby improving the success rate of film pickup. A third rod 370 extends from the bottom up and rearward from the upper end of the suction cup frame 320. A third movable end 371 is rotatably mounted on the end of the third rod 370. The third movable end 371 can be a bearing or other rotating component. The third movable end 371 can roll along the inner wall of the inclined groove 433, which helps reduce the frictional resistance between the third movable end 371 and the moving frame 430.

[0061] It should be noted that in the above embodiments, since the film has a certain weight, when the suction cup swings upward after adsorbing the film, the suction cup is easily driven by the film to rotate around the axis of the suction cup shaft 330. This causes the adsorption force of the suction cup and the weight of the film to be not on the same straight line, making it easy for the film to detach from the suction cup. Therefore, refer to... Figure 4 , Figure 6 and Figure 10In some embodiments of the present invention, the film-retrieving device further includes a balance frame 500 mounted on the base 100. The balance frame 500 is provided with a ramp section 521 that slopes from bottom to top and backward, and the ramp section 521 is arranged parallel to the inclined groove 433. The suction cup assembly 300 also includes a fourth rod 340 and a balance rod 360. A fifth rod 350 extends from the suction cup frame 320. A connecting rod 331 is fixedly sleeved on the outer wall of the middle part of the suction cup shaft 330. The two ends of the fourth rod 340 are rotatably connected to the connecting rod 331 and the balance rod 360, respectively. The middle part of the balance rod 360 is rotatably connected to the fifth rod 350. At this time, the balance rod 360, the connecting rod 331, the fourth rod 340 and the fifth rod 350 constitute a parallelogram linkage mechanism. The end of the balance rod 360 away from the fourth rod 340 can slide on the ramp section 521. The balance bar 360 is roughly vertical, and the connecting rod 331 is parallel to the balance bar 360. The suction cup is horizontal, and its suction force is vertical. When the suction cup assembly 300 swings, the end of the balance bar 360 can translate along the ramp section 521, thus maintaining the orientation of the balance bar 360. This ensures that the connecting rod 331 also maintains its orientation, allowing the suction cup to remain horizontal during the swinging process of the suction cup assembly 300. This maintains good adhesion to the film and prevents the film from easily falling off the suction cup due to rotation. Specifically, the end of the horizontal bar can be equipped with a rolling element 361, such as a bearing. The rolling element 361 reduces the frictional resistance between the balance bar 360 and the ramp section 521. Of course, the suction cup assembly 300 can also be equipped with a torsion spring 332. The torsion spring 332 is sleeved on the outer wall of the suction cup shaft 330. One end of the torsion spring 332 abuts against the suction cup frame 320, and the other end abuts against the connecting rod 331. When the suction cup rotates, the torsion spring 332 is compressed and has an elastic force to push the connecting rod 331 to make the suction cup return to the horizontal position. Since the connection point of the balance bar 360 and the fourth rod 340 is relatively high at this time, it may abut against the inner wall of the base 100. Therefore, the base 100 can be provided with a clearance hole 110. The connection point of the balance bar 360 and the fourth rod 340 can extend into the clearance hole 110, thereby avoiding collision with the base 100.

[0062] Reference Figure 10It should be noted that, in some embodiments of the present invention, the balance frame 500 includes a first frame 510 and a second frame 520. The first frame 510 is fixedly connected to the base 100. The first frame 510 is also provided with a slide groove 511, which is parallel to the ramp section 521. The second frame 520 is provided with a sliding block 522 that can be slidably connected to the slide groove 511, so that the second frame 520 can slide relative to the first frame 510 along the slide groove 511. This increases the translational stroke of the balance bar 360 on the ramp section 521, so that the turntable assembly can maintain the horizontal orientation of the suction cup during the swing of a long distance, thereby improving the reliability of the suction cup adsorbing the film.

[0063] A film printer according to a second aspect of the present invention includes a conveying device, a printing device, and a film picking device according to a first aspect of the present invention. The film picking device can pick up the film placed in the film cassette, and then convey the film to the printing device through the conveying device. The printing device prints images and other content onto the film, thereby completing the film printing process.

[0064] In the film printer of the second aspect embodiment of the present invention, when the film pick-up device is working, the lifting component 400 can drive the rotating component 200 to swing relative to the base 100, so that the suction cup component 300 installed on the rotating component 200 swings with the rotating component 200 to rise or fall, thereby allowing the suction cup to adapt to different film pick-up heights to pick up films at different height positions, greatly improving the convenience of using the film printer.

[0065] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A film-taking device, characterized in that, include: Base; A rotating assembly is rotatably mounted on the base; The suction cup assembly is connected to the rotating assembly; The lifting component can cooperate with the rotating component to realize the lifting of the suction cup component; The suction cup assembly includes a suction cup frame, a suction cup shaft, and a suction cup for picking up film. The suction cup is connected to the suction cup shaft, and the suction cup shaft is rotatably mounted on the suction cup frame. The film picking device also includes a balancing frame with a ramp section that slopes from bottom to top and backward. The suction cup assembly is equipped with a parallelogram linkage mechanism, which includes a balancing rod and a connecting rod arranged opposite each other. The connecting rod is connected to the suction cup shaft, and the balancing rod can translate along the ramp section.

2. The film-taking device according to claim 1, characterized in that, The balance bar is arranged vertically, and the connecting rod is arranged parallel to the balance bar to keep the suction cup horizontal.

3. The film-taking device according to claim 1, characterized in that, The end of the balance bar is equipped with a rolling element, which can roll along the slope section.

4. The film-taking device according to claim 1, characterized in that, The suction cup assembly is also provided with a torsion spring, which is sleeved on the outer wall of the suction cup shaft. One end of the torsion spring abuts against the suction cup frame, and the other end abuts against the connecting rod.

5. The film-taking device according to claim 1, characterized in that, The suction cup assembly includes a fourth rod, and the suction cup frame extends to form a fifth rod. The two ends of the fourth rod are rotatably connected to the connecting rod and the balance rod, respectively, and the middle part of the balance rod is rotatably connected to the fifth rod. The balance rod, the connecting rod, the fourth rod, and the fifth rod constitute the parallelogram linkage mechanism.

6. The film-taking device according to claim 1, characterized in that, The balancing frame includes a first frame and a second frame, the first frame being fixedly connected to the base, and the second frame being slidably connected to the first frame.

7. The film-taking device according to claim 6, characterized in that, The first frame is provided with a sliding groove, and the second frame is provided with a sliding block that can be slidably connected to the sliding groove.

8. A film-taking device according to any one of claims 1 to 7, characterized in that, The rotating assembly includes a rotating frame and a telescopic track. The telescopic track includes a fixed rail and a sliding rail. The fixed rail is fixedly connected to the rotating frame, and the sliding rail is slidably connected to the fixed rail. The suction cup assembly is connected to the sliding rail.

9. A film printer, characterized in that, Includes the film-taking device according to any one of claims 1 to 8.

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