Self-service film taking device facilitating film replacement and use method

Abstract

The invention discloses a self-service film taking device facilitating film replacement and a using method, and relates to the technical field of self-service equipment, the self-service film taking device comprises a film taking cabinet and a control panel mounted on the film taking cabinet, and further comprises a film bin arranged in the film taking cabinet, and a cover plate matched with the film bin is rotationally mounted on the film taking cabinet; a tray is installed in the film bin in a sliding mode through a sliding rail, a containing disc is installed on the tray through a lifting assembly, and films are placed on the containing disc. The automatic film stacking device has the advantages that when the films are replaced, the placing disc is pulled out of the film taking machine cabinet, so that the films are replaced more conveniently, operation is more convenient, in addition, the side edge extrusion assembly and the front end extrusion assembly are operated through rotation closing of the outer cover, automatic film stacking is achieved, stacking does not need to be driven by a driving source, and stability is higher; and the film output position is constant, the film clamping probability is reduced, and film conveying is more stable.

Description

Technical Field

[0001] The present invention relates to the technical field of self-service equipment, and in particular to a self-service film taking device for conveniently replacing films and a use method thereof. Background Art

[0002] Self-service film retrieval machines are devices that are currently widely used in the imaging industry. They are mainly used to provide fast and convenient self-service retrieval services for photos, images, movies and other materials. Common application scenarios of self-service film retrieval machines include hospitals, imaging service centers, imaging libraries, photo printing shops, etc.

[0003] The existing medical CT film self-service film dispenser has a built-in film storage bin for placing films. A clamping structure is provided in the film storage bin for clamping films and arranging and aligning the films. However, the existing clamping structure has a poor arranging and aligning effect when replacing films, and the films will deviate to a certain extent, resulting in jams. Therefore, the publication number CN209554401U discloses a stacked paper pile alignment device, which includes a base plate, a corner alignment reference plate, a side alignment reference plate and a paper pile combination pallet; a pallet sliding groove is provided on the base plate, and the pallet sliding groove is rectangular and two adjacent sides thereof coincide with two adjacent side walls of the base plate, the corner alignment reference plate and the side alignment reference plate are both located on the upper end surface of the base plate and are both located at the edge of the pallet sliding groove, the paper pile combination pallet is located in the pallet sliding groove, and the paper pile combination pallet includes a main pallet and a secondary pallet.

[0004] The above-mentioned alignment device can level the stack of papers as a whole and facilitate the removal of the leveled paper piles through the coordinated use of the base plate, the corner alignment reference plate, the side alignment reference plate and the paper pile combination support plate. The leveling operation is simple and easy, which reduces the labor intensity of manual labor. At the same time, it can greatly improve the flatness of the paper pile, which is beneficial to ensure printing accuracy and avoid paper jams in offset printing machines.

[0005] However, when the above-mentioned alignment device is used in practice, the film needs to be accurately placed in the sliding groove of the support plate, which has high requirements on the placement position of the film, and it is inconvenient to replace the film. In addition, the film bin in the existing self-service film dispenser is located inside the self-service film dispenser. Since the internal space of the film bin is small, it is difficult to take out the film from the film bin if necessary.

[0006] Therefore, a novel self-service film taking device and a method for using the film that are convenient for replacing the film can be adopted to solve the shortcomings of the prior art. Summary of the invention

[0007] The purpose of the present invention is to solve the problems existing in the prior art and to provide a self-service film taking device and a method of using the device for conveniently replacing films.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions: A self-service film-taking device for conveniently changing films comprises a film-taking cabinet and a control panel installed on the film-taking cabinet, and also comprises a film bin arranged inside the film-taking cabinet, wherein a cover plate cooperating with the film bin is rotatably mounted on the film-taking cabinet; A tray is slidably installed in the film bin via a slide rail, a placement plate is installed on the tray via a lifting assembly, a film is placed on the placement plate, and a side extrusion assembly and a front extrusion assembly matching the film are installed on the placement plate; An outer cover matching with the film is rotatably mounted on the tray, an upper extrusion assembly matching with the film is mounted on the outer cover, a rear baffle is mounted on the tray via a moving assembly, and a through hole matching with the rear baffle is opened on the placement plate for passage of the rear baffle.

[0009] Preferably, the side extrusion assembly includes a plurality of fixed blocks slidably mounted on the placement plate, the plurality of fixed blocks are divided into two groups, the two groups are respectively located on both sides of the placement plate, two adjacent fixed blocks are fixedly connected by a connecting rod, two first elastic telescopic rods are fixedly mounted on each of the fixed blocks, the telescopic ends of the two matching first elastic telescopic rods are jointly fixedly mounted with a wheel frame, a pushing wheel matching with the film is rotatably mounted on the wheel frame, and two pushing mechanisms matching with the corresponding fixed blocks are mounted on the placement plate.

[0010] Preferably, the pushing mechanism includes a push rod fixedly mounted on a fixed block, a sleeve is mounted on the push rod via an adjusting structure, a frame is fixedly mounted on the sleeve, two side pressure wheels are rotatably mounted on the frame, two first pressure wedges matching the corresponding two groups of side pressure wheels are fixedly mounted on the outer cover, and a pressure control structure matching the multiple pushing wheels is mounted on the outer cover.

[0011] Preferably, the adjustment structure comprises a screw fixedly mounted on the push rod, a sliding plate fixedly mounted on the screw, the sliding plate and the sleeve being slidably connected, and a nut rotatably mounted on the sleeve and rotatably connected to the screw thread.

[0012] Preferably, the pressure control structure includes a third motor fixedly mounted on the outside of the outer cover, a pressure sensor fixedly mounted on the driving end of the third motor, a toothed disc fixedly mounted on the pressure sensor, two racks meshing with the toothed discs are slidably mounted on the outer cover, a fixing plate is fixedly mounted on the two racks, the fixing plates penetrate the outer cover and extend into the interior of the outer cover, a groove body matching with the fixing plate is opened on the outer cover, a magnetic plate is fixedly mounted on the two fixing plates, and a telescopic magnetic rod matching with the corresponding magnetic plate is rotatably mounted on each of the driving wheels.

[0013] Preferably, the front end extrusion assembly includes a sliding frame slidably mounted on the placement plate, a plurality of third elastic telescopic rods are fixedly mounted on the sliding frame, a pushing plate cooperating with the film is fixedly mounted on the telescopic ends of the plurality of third elastic telescopic rods, two front pressure wheels are rotatably mounted on the sliding frame, and a second pressure wedge block cooperating with the two front pressure wheels is fixedly mounted on the outer cover.

[0014] Preferably, the upper extrusion assembly includes a plurality of second elastic telescopic rods fixedly mounted on the top of the inner part of the outer cover, and the telescopic ends of the plurality of second elastic telescopic rods are commonly fixedly mounted on a support plate, and two shafts are rotatably mounted on the support plate, and a rubber wheel matching with the film is fixedly mounted on each of the two shafts, and a second motor with two driving shafts is fixedly mounted on the support plate, and the two driving ends of the second motor are respectively fixedly connected to the corresponding shafts.

[0015] Preferably, the moving component includes a limit frame fixedly mounted on the pallet, the rear baffle being slidably connected to the limit frame, two connecting rods fixedly mounted on the rear baffle, a tooth plate fixedly mounted on each of the two connecting rods, a gear meshing with the corresponding tooth plate rotatably mounted on both sides of the pallet, and two incomplete tooth plates matching the corresponding gears fixedly mounted on the outer cover.

[0016] Preferably, the lifting assembly includes a first motor fixedly mounted on the tray and a lifting top, and the driving end of the first motor is connected to the lifting top via a telescopic universal shaft.

[0017] The present invention also provides a film replacement method of a self-service film taking device, comprising the self-service film taking device for convenient film replacement, and further comprising the following steps: S1. First, open the cover, pull the tray out of the film compartment, then open the outer cover, and then put the film on the placement tray, and the placement position can be between the side extrusion assembly, the front extrusion assembly and the rear baffle; S2. After placement is completed, the outer cover is closed so that the bottom of the outer cover fits with the bottom of the tray. As the outer cover is closed, the side squeezing assembly and the front squeezing assembly are triggered to operate. The side squeezing assembly is used to squeeze and align the two sides of the film, and the front squeezing assembly and the rear baffle cooperate to align the front and back of the film. S3. After being aligned by the side extrusion assembly and the front extrusion assembly, the films are aligned up and down, and after the outer cover is closed, the upper extrusion assembly is used to press and smooth the upper part of the film to prevent the film from bulging, and after the films are aligned, the upper extrusion assembly is used to transport the films.

[0018] Compared with the prior art, the present invention has the following advantages: 1. When replacing films, the self-service film-taking device can align the films by arranging the side squeezing components, the front squeezing components and the rear baffle plate. The outer cover is provided with a first pressing wedge block and a second pressing wedge block that cooperate with the side squeezing components and the front squeezing components. The aligning operation can be automatically achieved while the outer cover is closed. The requirements for the position of the film placement are relatively low, and no driving device is required, so the stability is higher.

[0019] 2. When replacing films, the self-service film-taking device can pull out the placement tray from the film-taking cabinet by setting up a slide rail and a tray, and then replace and place the film. The operation space is large and the replacement is more convenient. In addition, the placement tray is pulled out to replace the film, and the position of the film is more accurately controlled, which reduces the probability of film deflection and improves the efficiency of film replacement.

[0020] 3. When replacing the film, the self-service film-taking device sets an upper squeezing component to press the top of the film to prevent the film from arching, which is convenient for film transportation. With the use of a lifting top and a rotatable rubber wheel, it can ensure that the position of each film transported from the placement plate is fixed, thereby reducing the probability of the film getting stuck during transportation.

[0021] 4. When replacing the film, the self-service film-taking device fixes the position of the push wheel by setting a locking mechanism, and uses a pressure sensor to control the pressure between the push wheel and the film, which can effectively avoid the probability of the film being squeezed and deformed, ensure the normal shape of the film, and avoid the situation where the push wheel is not pressed tightly due to long-term wear, so that the position of the film is more fixed and the probability of film deviation is reduced.

[0022] In summary, when replacing the film, the present invention pulls the placement tray out of the film retrieval cabinet, making the film replacement more convenient and the operation more convenient. In addition, the rotation and closure of the outer cover are used to operate the side extrusion assembly and the front extrusion assembly to achieve automatic film alignment. There is no need for a driving source to drive the alignment, the stability is higher, the film output position is constant, the probability of film jams is reduced, and the film transportation is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein: Figure 1 A schematic diagram of the structure of a self-service film-taking device for convenient film replacement proposed by the present invention; Figure 2 for Figure 1 Detailed diagram of the structure after the cover is opened and the tray is pulled out; Figure 3 for Figure 2 Detailed schematic diagram of the structure after opening the outer cover; Figure 4 for Figure 3 Detailed diagram of the structure after removing the film retrieval cabinet, cover plate and control panel and rotating them to a certain angle; Figure 5 for Figure 4 Detailed schematic diagram of the tray and the structure after the outer cover is closed; Figure 6 for Figure 5 Detailed schematic diagram of the structure after being rotated to a certain angle; Figure 7 for Figure 6 A schematic detailed diagram of the enlarged structure of part B; Figure 8 for Figure 6 Detailed schematic diagram of the structure after removing the outer cover; Fig. 9 for Figure 6 Detailed schematic diagram of the structure after removing the outer cover and other components installed on the outer cover; Fig.10 for Fig. 9 Detailed schematic diagram of the structure after being rotated to a certain angle; Fig.11 10 is a detailed diagram of the structure after being rotated at a certain angle; Fig.12 for Fig.11 An enlarged structural schematic diagram of the middle lifting top and the first motor part; Fig.13 for Fig.10 Detailed schematic diagram of the structure after removing the film; Fig.14 for Fig.13 An enlarged schematic diagram of the structure of the middle and side extrusion components; Fig.15 for Fig.14 An enlarged structural schematic detail diagram of the middle side extrusion wheel, sleeve and its surrounding parts; Fig.16 for Fig.15 A schematic detailed view of the plan structure along one of the angles; Fig.17 for Fig.16 Detailed schematic diagram of the three-dimensional structure along the AA section; Fig.18 for Figure 4 An enlarged structural schematic detailed diagram of the middle outer cover and other components installed inside the outer cover; Fig.19 for Fig.18 An enlarged structural schematic detail diagram of the middle and upper extrusion assembly; Fig. 20 for Fig.13 Enlarged structural schematic detail diagram of the middle and front end extrusion assembly.

[0024] In the figure: 1 film taking cabinet, 2 cover plate, 3 control panel, 4 film bin, 5 tray, 6 slide rail, 7 placement plate, 8 outer cover, 9 film, 10 side extrusion assembly, 11 front extrusion assembly, 12 rear baffle plate, 13 side pressure wheel, 14 fixed block, 15 push wheel, 16 telescopic magnetic rod, 17 first elastic telescopic rod, 18 frame, 19 sleeve, 20 push rod, 21 screw rod, 22 nut, 23 toothed disc, 24 rack, 25 connecting rod, 26 first motor, 27 lifting top, 28 telescopic universal shaft, 29 toothed plate, 30 gear, 31 incomplete toothed plate, 32 magnetic plate, 33 return spring, 34 first pressure wedge, 35 upper extrusion assembly, 36 second elastic telescopic rod, 37 support plate, 38 rubber wheel, 39 second motor, 40 front pressure wheel, 41 push plate, 42 third elastic telescopic rod, 43 sliding frame. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Example 1: Reference Figure 1-Figure 5 , Figure 8-Figure 18 , Fig. 20 A self-service film-taking device for conveniently changing films comprises a film-taking cabinet 1 and a control panel 3 installed on the film-taking cabinet 1, and also comprises a film bin 4 arranged inside the film-taking cabinet 1, and a cover plate 2 cooperating with the film bin 4 is rotatably mounted on the film-taking cabinet 1; A tray 5 is slidably installed in the film bin 4 through a slide rail 6, a placement plate 7 is installed on the tray 5 through a lifting assembly, a film 9 is placed on the placement plate 7, and an outer cover 8 matching the film 9 is rotatably installed on the tray 5 (the film 9 here is a general term for a number of stacked films); the cover 2 can only be opened to ninety degrees, and two rows of supporting wheels are rotatably installed inside the cover 2 to support the slide rail 6 to prevent the slide rail 6 from protruding too much from the film retrieval cabinet 1 and causing the slide rail 6 to bend. The slide rail 6 is an existing common sliding rail, and its specific operation and specific structure are not explained here.

[0027] The lifting assembly includes a first motor 26 and a lifting top 27 fixedly mounted on the tray 5 . The driving end of the first motor 26 and the lifting top 27 are connected via a telescopic universal shaft 28 .

[0028] The rotation of the driving end of the first motor 26 will drive the lifting top 27 to rise and fall through the telescopic universal shaft 28, thereby realizing the lifting and falling of the placement tray 7. As the film 9 is used, the placement tray 7 will continue to move upward (the upward direction here is the side away from the tray 5), and the distance of each movement is the thickness of a single film 9.

[0029] The lifting top 27 is a common lifting device, which will not be described in detail here; The purpose of using the telescopic universal shaft 28 is that when the lifting top 27 is lifted or lowered, the part connected to the driving shaft of the first motor 26 will change. Therefore, the telescopic universal shaft 28 is used to connect the lifting top 27 and the first motor 26 to ensure that the driving end of the first motor 26 always drives the lifting top 27 to operate.

[0030] The placing plate 7 is provided with a side pressing assembly 10 and a front pressing assembly 11 which match with the film 9 .

[0031] The side extrusion assembly includes a plurality of fixed blocks 14 slidably mounted on the placement plate 7, the plurality of fixed blocks 14 are divided into two groups, the two groups are respectively located on both sides of the placement plate 7, and two adjacent fixed blocks 14 are fixedly connected by a connecting rod, and two first elastic telescopic rods 17 are fixedly mounted on each fixed block 14, and the telescopic ends of the two matching first elastic telescopic rods 17 are jointly fixedly mounted with a wheel frame, and a pushing wheel 15 matching with the film 9 is rotatably mounted on the wheel frame, and two pushing mechanisms matching with the corresponding fixed blocks 14 are installed on the placement plate 7.

[0032] Multiple fixed blocks 14 on the same side will move to the side close to the film 9 at the same time under the action of the pushing mechanism and the connecting rod. The movement of the fixed block 14 drives the first elastic telescopic rod 17 to move. The first elastic telescopic rod 17 drives the wheel frame and the pushing wheel 15 rotatably installed on the wheel frame to move, so that the pushing wheel 15 is against the side of the film 9. When the pushing wheel 15 is against the film 9, the fixed block 14 continues to move, compressing the first elastic telescopic rod 17, increasing the pressing force between the pushing wheel 15 and the film 9, and aligning the films 9.

[0033] The pushing mechanism includes a push rod 20 fixedly mounted on the fixed block 14, and a sleeve 19 is mounted on the push rod 20 through an adjustment structure; The adjustment structure includes a screw 21 fixedly mounted on the push rod 20, a slide is fixedly mounted on the screw 21, the slide is slidably connected to the sleeve 19, and a nut 22 is rotatably mounted on the sleeve 19 and is threadably connected to the screw 21; The nut 22 is turned to make the screw 21 slide in the sleeve 19, so as to change the distance between the sleeve 19 and the push rod 20, so as to change the initial position of the fixed block 14. Since the initial position of the sleeve 19 remains unchanged, after the initial position of the fixed block 14 is changed, the distance between the push wheel 15 and the film 9 changes. At this time, the sleeve 19 moves the same distance, and the position of the fixed block 14 is different, so as to align the films 9 of different widths.

[0034] The sleeve 19 is fixedly mounted with a frame 18, on which two side pressing wheels 13 are rotatably mounted, and the outer cover 8 is fixedly mounted with two first pressing wedges 34 corresponding to the two sets of side pressing wheels 13, and the outer cover 8 is mounted with a pressure control structure that is matched with a plurality of driving wheels 15; When the outer cover 8 is closed, the first pressing wedge block 34 on the outer cover 8 will abut against the side pressing wheel 13. Since the first pressing wedge block 34 is triangular, the movement of the first pressing wedge block 34 will generate a pressing force on the side pressing wheel 13. Under the action of the pressing force, the push rod 20 moves on the placement plate 7, thereby driving the fixed block 14 to move. Since the low pressure on both sides required for aligning the film 9 is relatively large, the pressure strength between the first pressure wedge block 34 and the side pressure wheel 13 is required to be relatively high. In order to ensure that the pressure strength meets the standard and no external force is required to be applied by hand, the weight of the outer cover 8 itself needs to meet the pressure strength between the first pressure wedge block 34 and the side pressure wheel 13.

[0035] The pressure control structure includes a third motor fixedly mounted on the outside of the outer cover 8, a pressure sensor fixedly mounted on the driving end of the third motor, a toothed disc 23 fixedly mounted on the pressure sensor, two racks 24 meshing with the toothed disc 23 are slidably mounted on the outer cover 8, and fixed plates are fixedly mounted on the two racks 24. The fixed plates penetrate the outer cover 8 and extend into the interior of the outer cover 8. A groove body matched with the fixed plates is provided on the outer cover 8. A magnetic plate 32 is fixedly mounted on the two fixed plates, and a telescopic magnetic rod 16 matched with the corresponding magnetic plate 32 is rotatably mounted on each driving wheel 15.

[0036] Under the action of the lifting assembly, the placement tray 7 will continue to move up. Since the first pressing wedge 34 is triangular, when the pushing wheel 15 abuts against the film 9, the side pressing wheel 13 moves to the middle position of the first pressing wedge 34 (the purpose of this design: since each time the film 9 is transported out of the placement tray 7, the overall thickness of the film 9 will change. If the pushing wheels 15 on both sides remain stationary at this time, the adhesion between the films 9 will cause the film 9 at the top and the film 9 below it to be taken out at the same time, thereby causing a card situation. The first pressing wedge 34 is used, and the side pressing wheel 13 is located in the middle of the first pressing wedge 34 after the clamping code is aligned. As the placement tray 7 moves upward, the side pressing wheel 13 will continue to drive the push wheel 15 to move, increasing the pressing force on the film 9 and reducing the probability of the lower film 9 being brought out. Generally, the effect is obvious when the last few films 9 are placed, because the last few films 9 are light and easier to be brought out). As the pressing force between the push wheel 15 and the film 9 increases, when the film 9 is thicker, the pressing force increased each time is not large, so the effect is not large. Once there are only a few films 9 left, the pressing force at this time is very likely to cause the side of the film 9 to deform. Therefore, it is necessary to adjust the pressing force between the push wheel 15 and the film 9 through the pressure control structure. The specific adjustment method is as follows: The pressure sensor on the driving end of the third motor will sense the torque from the toothed disc 23, which is the pressing force of the rack 24 on the toothed disc 23. When the rack 24 is fixed, suction will be generated between the magnetic plate 32 and the telescopic magnetic rod 16. The suction will be transmitted to the pressure sensor through the fixing plate, the rack 24 and the toothed disc 23. Then the pressure sensor controls the operation of the third motor to change the suction between the magnetic plate 32 and the telescopic magnetic rod 16. The change in suction will change the pressure between the pushing wheel 15 and the film 9, so as to maintain the pressure balance between the pushing wheel 15 and the film 9, which can effectively prevent the probability of the film 9 below being brought out and reduce the probability of the film 9 being squeezed and deformed.

[0037] The front end extrusion assembly 11 includes a sliding frame 43 slidably mounted on the placement plate 7, a plurality of third elastic telescopic rods 42 are fixedly mounted on the sliding frame 43, a pushing plate 41 cooperating with the film 9 is fixedly mounted on the telescopic ends of the plurality of third elastic telescopic rods 42, two front pressing wheels 40 are rotatably mounted on the sliding frame 43, and a second pressing wedge block cooperating with the two front pressing wheels 40 is fixedly mounted on the outer cover 8.

[0038] As the outer cover 8 is closed, the second pressing wedge block abuts against the front pressing wheel 40, and the sliding frame 43 moves on the placement plate 7. The sliding frame 43 drives the third elastic telescopic rod 42 to move, thereby driving the push plate 41 to move, so that the push plate 41 abuts against the film 9. During the pressing process, the rear baffle 12 always abuts against the other end of the film 9 to prevent the film 9 from moving to the other side, so as to align the front and rear of the film 9. The third elastic telescopic rod 42 has an inflatable spring inside, and its length can be adjusted according to the length of the film 9. A limiting block that cooperates with the sliding frame 43 is installed on the placement plate 7 to limit the position of the sliding frame 43 and prevent a large pressure from being generated between the push plate 41 and the film 9. Since the front part of the film 9 does not require any thrust during the transportation of the film 9, the push plate 41 only serves to align the film 9.

[0039] Embodiment 2: This embodiment is different from the embodiment 1 in that: Figure 1-Figure 4 , Figure 6-Figure 7 , Figure 9-11 , Figure 18-19 An upper extrusion assembly 35 that cooperates with the film 9 is installed on the outer cover 8; the upper extrusion assembly 35 includes a plurality of second elastic telescopic rods 36 fixedly installed on the top of the inner part of the outer cover 8, and a support plate 37 is fixedly installed on the telescopic ends of the plurality of second elastic telescopic rods 36. Two shafts are rotatably installed on the support plate 37, and a rubber wheel 38 that cooperates with the film 9 is fixedly installed on the two shafts. A second motor 39 with two driving shafts is fixedly installed on the support plate 37, and the two driving ends of the second motor 39 are respectively fixedly connected to the corresponding shafts.

[0040] When the outer cover 8 is closed, the rubber wheel 38 will be against the upper part of the film 9, and the second elastic telescopic rod 36 will be compressed. When the film 9 needs to be transported, the second motor 39 is started, and the driving end of the second motor 39 rotates to drive the two rubber wheels 38 to rotate, thereby sending the top film 9 out of the film pile.

[0041] Cooperating with the lifting assembly, it can be ensured that each film 9 is sent out from the film pile at the same position.

[0042] A rear baffle 12 is installed on the tray 5 through a moving assembly, and a through hole matching the rear baffle 12 is opened on the placement plate 7 for the passage of the rear baffle 12; The moving assembly includes a limit frame fixedly installed on the tray 5, and the rear baffle 12 is slidably connected to the limit frame. Two connecting rods 25 are fixedly installed on the rear baffle 12, and a tooth plate 29 is fixedly installed on each of the two connecting rods 25. A gear 30 meshing with the corresponding tooth plate 29 is rotatably installed on both sides of the tray 5, and two incomplete tooth plates 31 matching the corresponding gears 30 are fixedly installed on the outer cover 8.

[0043] When the outer cover 8 just starts to close, the rear baffle 12 always extends out of the placement plate 7 and is flush with the upper part of the film 9. At this time, all the films 9 can be blocked. As the outer cover 8 is closed, the rear baffle 12 always remains stationary. When the outer cover 8 is close to closing, the front, back, left, and right sides of the films 9 have been aligned, and the incomplete tooth piece 31 just meshes with the gear 30. The outer cover 8 continues to rotate and close, and the incomplete tooth piece 31 drives the gear 30 to rotate, thereby driving the tooth plate 29 to move, and the tooth plate 29 drives the connecting rod 25 to move, thereby driving the rear baffle 12 moves toward the side close to the tray 5, and a visual inspection module is fixedly installed on the rear baffle 12. As the rear baffle 12 moves, the visual inspection module will detect the alignment of the film 9, and a prompt will appear after the detection meets the standard; when the outer cover 8 is closed, the incomplete tooth plate 31 is separated from the gear 30. At this time, the rear baffle 12 is reset under the action of the reset spring 33, and the rear baffle 12 continues to block the rear part of the film 9. When conveying the film 9, under the action of the rear baffle 12, only one film 9 can be conveyed at a time.

[0044] The specific operation steps of this device are as follows: First, open the cover plate 2, pull the tray 5 out of the film chamber 4, then open the outer cover 8, and then put the film 9 on the placement plate 7, and the placement position is between the side extrusion assembly 10, the front extrusion assembly 11 and the rear baffle 12; After placement is completed, the outer cover 8 is closed so that the bottom of the outer cover 8 fits with the bottom of the tray 5. As the outer cover 8 is closed, the side pressing assembly 10 and the front pressing assembly 11 are triggered to operate, and the side pressing assembly 10 is used to press and align the two sides of the film 9, and the front pressing assembly 11 and the rear baffle 12 cooperate to align the front and back of the film 9; After being aligned by the side extrusion assembly 10 and the front extrusion assembly 11, the film 9 is aligned up and down, and after the outer cover 8 is closed, the upper extrusion assembly 35 presses and smoothes the upper part of the film 9 to prevent the film 9 from arching, and after the film 9 is aligned, the film 9 is transported by the upper extrusion assembly 35.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A self-service film-taking device for conveniently changing films, comprising a film-taking cabinet (1) and a control panel (3) installed on the film-taking cabinet (1), characterized in that: It also includes a film bin (4) arranged inside the film retrieval cabinet (1), and a cover plate (2) cooperating with the film bin (4) is rotatably mounted on the film retrieval cabinet (1); A tray (5) is slidably mounted in the film bin (4) via a slide rail (6); a placement plate (7) is mounted on the tray (5) via a lifting assembly; a film (9) is placed on the placement plate (7); and a side extrusion assembly (10) and a front extrusion assembly (11) that cooperate with the film (9) are mounted on the placement plate (7); An outer cover (8) cooperating with the film (9) is rotatably mounted on the tray (5), an upper extrusion assembly (35) cooperating with the film (9) is mounted on the outer cover (8), a rear baffle (12) is mounted on the tray (5) via a moving assembly, and a through hole cooperating with the rear baffle (12) is provided on the placement plate (7) for passage of the rear baffle (12).

2. The self-service film-taking device for convenient film replacement according to claim 1, characterized in that: The side extrusion assembly comprises a plurality of fixed blocks (14) slidably mounted on the placement plate (7), the plurality of fixed blocks (14) being divided into two groups, the two groups being respectively located on two sides of the placement plate (7), two adjacent fixed blocks (14) being fixedly connected via a connecting rod, two first elastic telescopic rods (17) being fixedly mounted on each of the fixed blocks (14), the telescopic ends of the two first elastic telescopic rods (17) being matched with each other being fixedly mounted with a wheel frame, a driving wheel (15) matching with the film (9) being rotatably mounted on the wheel frame, and two driving mechanisms matching with the corresponding fixed blocks (14) being mounted on the placement plate (7).

3. The self-service film-taking device for convenient film replacement according to claim 2, characterized in that: The pushing mechanism comprises a push rod (20) fixedly mounted on a fixed block (14); a sleeve (19) is mounted on the push rod (20) via an adjusting structure; a frame (18) is fixedly mounted on the sleeve (19); two side pressure wheels (13) are rotatably mounted on the frame (18); two first pressure wedge blocks (34) matching the two corresponding sets of side pressure wheels (13) are fixedly mounted on the outer cover (8); and a pressure control structure matching the plurality of pushing wheels (15) is mounted on the outer cover (8).

4. The self-service film-taking device for convenient film replacement according to claim 3, characterized in that: The adjustment structure comprises a screw (21) fixedly mounted on a push rod (20), a sliding plate fixedly mounted on the screw (21), the sliding plate being slidably connected to a sleeve (19), and a nut (22) rotatably mounted on the sleeve (19) and rotatably connected to a thread of the screw (21).

5. The self-service film-taking device for convenient film replacement according to claim 3, characterized in that: The pressure control structure comprises a third motor fixedly mounted on the outside of the outer cover (8), a pressure sensor fixedly mounted on the driving end of the third motor, a toothed disc (23) fixedly mounted on the pressure sensor, two racks (24) meshing with the toothed disc (23) slidably mounted on the outer cover (8), a fixing plate fixedly mounted on each of the two racks (24), the fixing plate passing through the outer cover (8) and extending into the interior of the outer cover (8), a groove body matched with the fixing plate opened on the outer cover (8), a magnetic plate (32) fixedly mounted on each of the two fixing plates, and a telescopic magnetic rod (16) matched with the corresponding magnetic plate (32) rotatably mounted on each of the driving wheels (15).

6. The self-service film-taking device for convenient film replacement according to claim 1, characterized in that: The front end extrusion assembly (11) comprises a sliding frame (43) slidably mounted on the placement plate (7), a plurality of third elastic telescopic rods (42) being fixedly mounted on the sliding frame (43), a push plate (41) cooperating with the film (9) being fixedly mounted on the telescopic ends of the plurality of third elastic telescopic rods (42), two front pressing wheels (40) being rotatably mounted on the sliding frame (43), and a second pressing wedge block cooperating with the two front pressing wheels (40) being fixedly mounted on the outer cover (8).

7. The self-service film-taking device for convenient film replacement according to claim 1, characterized in that: The upper extrusion assembly (35) comprises a plurality of second elastic telescopic rods (36) fixedly mounted on the top of the inner part of the outer cover (8); the telescopic ends of the plurality of second elastic telescopic rods (36) are fixedly mounted on a support plate (37); two shafts are rotatably mounted on the support plate (37); a rubber wheel (38) matching the film (9) is fixedly mounted on each of the two shafts; a second motor (39) having two drive shafts is fixedly mounted on the support plate (37); the two drive ends of the second motor (39) are respectively fixedly connected to the corresponding shafts.

8. The self-service film-taking device for convenient film replacement according to claim 1, characterized in that: The moving assembly comprises a limit frame fixedly mounted on the tray (5), the rear baffle plate (12) being slidably connected to the limit frame, two connecting rods (25) being fixedly mounted on the rear baffle plate (12), a toothed plate (29) being fixedly mounted on each of the two connecting rods (25), a gear (30) meshing with a corresponding toothed plate (29) being rotatably mounted on both sides of the tray (5), and two incomplete tooth plates (31) matching with the corresponding gears (30) being fixedly mounted on the outer cover (8).

9. The self-service film-taking device for convenient film replacement according to claim 1, characterized in that: The lifting assembly comprises a first motor (26) fixedly mounted on the tray (5) and a lifting top (27); a driving end of the first motor (26) and the lifting top (27) are connected via a telescopic universal shaft (28).

10. A film replacement method for a self-service film-taking device, used in the self-service film-taking device for convenient film replacement as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1. First, open the cover (2), pull the tray (5) out of the film chamber (4), then open the outer cover (8), and then place the film (9) on the placement plate (7), and place it between the side extrusion assembly (10), the front extrusion assembly (11) and the rear baffle (12); S2, after the placement is completed, the outer cover (8) is closed so that the bottom of the outer cover (8) fits with the bottom of the tray (5), and as the outer cover (8) is closed, the side squeezing assembly (10) and the front squeezing assembly (11) are triggered to operate, and the side squeezing assembly (10) is used to squeeze and align the two sides of the film (9), and the front squeezing assembly (11) and the rear baffle (12) cooperate to align the front and back of the film (9); S3, the films (9) are aligned up and down after being aligned by the side extrusion assembly (10) and the front extrusion assembly (11), and after the outer cover (8) is closed, the upper extrusion assembly (35) presses and smoothes the upper part of the films (9) to prevent the films (9) from bulging, and after the films (9) are aligned, the films (9) are transported by the upper extrusion assembly (35).

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