Film supply box deviation rectifying device and medical film printing equipment

Abstract

The utility model provides a film supply box deviation rectifying device and medical film printing equipment, and belongs to the technical field of printing equipment, the film supply box deviation rectifying device comprises a film supply box and a film deviation rectifying device, the film supply box comprises a bottom plate, the film deviation rectifying device comprises a first frame body, a second frame body, a locking part and a retreating part, the first frame body and the second frame body are connected with the wafer supply box in a sliding mode, the locking part penetrates through the upper surface of the wafer supply box to be connected with the second frame body, and the retreating and stopping part is connected with the upper surface of the bottom plate in a sliding mode. The film feeding device can effectively solve the problem that films deflect when being output from the film feeding box, is simple and compact in structure, not only reduces purchase cost and later maintenance difficulty, but also guarantees effective containing space of the film box, and has good practicability.

Description

Technical Field

[0001] The utility model belongs to the technical field of printing equipment, in particular to a film supply box deviation correction device and medical film printing equipment. Background Art

[0002] Medical film printers are essential imaging devices in the medical field, converting medical images into high-quality prints to facilitate diagnosis and treatment. Film, the printer's output medium, is typically stored in a cassette, stacked in dozens to over a hundred sheets. Currently, a wide variety of film sizes are available on the market, including 8x10 inches, 10x12 inches, 11x14 inches, and 14x17 inches. To accommodate these commonly known film sizes, a stopper mechanism is typically incorporated into the cassette to ensure universal compatibility. Furthermore, film thickness, dimensional accuracy, and surface friction coefficient vary between manufacturers. Furthermore, due to film's inherent characteristics, prolonged storage or humid environments can cause film to skew as it is removed from the cassette by the film feed roller. Once this problem occurs, not only does it require frequent maintenance and reduce printer processing efficiency, but it can also lead to medical misdiagnoses, missed diagnoses, and other unforeseen medical issues, potentially leading to legal disputes and other adverse consequences. Therefore, addressing the issue of film feed skew is both urgent and necessary. Setting a limit mechanism inside the film supply box can also ensure that the film does not deviate when being transported into the printer, so as to avoid a series of problems such as blockage of the transport channel and omission of printed image information.

[0003] In the prior art, paper or film is primarily restrained and fixed using a detachable cardboard. When printing on paper or film of different sizes is required, the cardboard is removed using a tool, adjusted to the desired size, and then reinstalled into the drawer to accommodate printing on paper or film of different sizes. Although the above solution can accommodate printing on paper or film of different sizes, the cardboard needs to be removed and adjusted each time a different size of paper or film is printed, which is time-consuming, labor-intensive, and inconvenient.

[0004] In this regard, utility model patent CN215100813U discloses a drawer film box, which solves the above problem by installing limit members at multiple preset positions inside the drawer film box. Figures 1 to 3As shown, the container 1 is equipped with multiple sets of stoppers for preventing the sliding of different sizes of paper or film. The stoppers are used to secure the paper or film in place. Each set of stoppers corresponds to a different size of paper or film. Each set of stoppers includes six stoppers 3. One side of the paper or film contacts the inner wall of the container 1, and the six stoppers 3 evenly surround the other three sides of the paper or film and contact them. The bottom of the container 1 has multiple placement slots 2, and the stoppers 3 are positioned one-to-one within each slot 2. When the stoppers 3 are in a first state, the top surface of the stoppers 3 is lower than the notch of the slot 2. When the stoppers 3 are in a second state, the stoppers 3 protrude from the slot 2 and contact the paper or film. Although this solution can accommodate common film sizes without disassembly, it also has obvious disadvantages: its adjustment range is limited and it lacks the scalability to adapt to new film sizes in the future, increasing the user's subsequent replacement costs.

[0005] Utility model CN218257402U discloses a sheet skew adjustment mechanism to solve the above problems, such as Figure 4 and Figure 5As shown. The sheet skew adjustment mechanism is arranged in the paper feed box 1 of the printer, and is used to adjust the sheet 2 in the paper feed box 1. It includes a first frame 3, a second frame 4 and a driving device. The first frame 3 includes a first limiting mechanism 31 provided on one side of the paper feed box 1 and a first rack 32 extending from one side of the paper feed box 1 to the center; the first limiting mechanism 31 includes a first limiting portion 311 for limiting the first side 21 of the sheet 2 and a second limiting portion 312 for limiting the upper surface 22 of the sheet 2; correspondingly, the second frame 4 includes a second limiting mechanism 41 provided on the other side of the paper feed box 1 and a second rack 42 extending from the other side of the paper feed box 1 to the center, and the second rack 42 is arranged opposite to the first rack 32; the second limiting mechanism 41 includes a third limiting portion 411 for limiting the second side 23 of the sheet 2 and a fourth limiting portion 412 for limiting the upper surface 22 of the sheet 2; in addition, the gear transmission mechanism 5 is connected to the first rack 32 and the second rack 42. The two racks 42 are meshed and connected; the driving device includes a motor 5 and a gear transmission mechanism, and the motor 5 is connected to the first rack 32 and the second rack 42 through the gear transmission mechanism to move the first rack 32 and the second rack 42 closer to or farther from each other. When the first rack 32 and the second rack 42 approach each other, the first limiting mechanism 31 and the second limiting mechanism 41 also approach each other, causing the first limiting portion 311 and the third limiting portion 411 to respectively fix the first side 21 and the second side 22 of the sheet 2; when the first rack 32 and the second rack 42 move away from each other, the first limiting mechanism 31 and the second limiting mechanism 41 also move away from each other, causing the first limiting portion 311 and the third limiting portion 411 to respectively detach from the first side 21 and the second side 22 of the sheet 2. Compared with the solution described in CN215100813U, this utility model has a wide size adjustment range and is expandable, but the mechanism is complex and requires high precision in component processing and assembly, which invisibly increases procurement and maintenance costs. Moreover, since the mechanism is placed inside the paper feeding box, considering the scenarios of paper loading and conveying, in order to avoid interference, the limited storage space of the paper feeding box will inevitably be compressed, and the frequency of loading paper will inevitably increase, which is less practical. Utility Model Content

[0006] The technical problem to be solved by the utility model is to simplify the device structure under the premise of improving the compatibility with film sizes and preventing the film from being fed skewed.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0008] A film supply box correction device includes a film supply box 1 and a film correction device, the film supply box 1 includes a bottom plate 14, the film correction device includes a first frame 2, a second frame 3, a locking part 4 and a retreat part 5, the first frame 2 and the second frame 3 are slidably connected to the film supply box 1, the locking part 4 passes through the upper surface of the film supply box 1 and is connected to the second frame 3, and the retreat part 5 is slidably connected to the upper surface of the bottom plate 14.

[0009] Furthermore, the film supply box 1 also includes a front wall 11, side walls 12 and a rear wall 13. The front wall 11, the side walls 12 and the rear wall 13 are of the same thickness and the film supply box 1 is an integrally molded structure. The film supply box 1 is made of plastic. The bottom plate 14 is provided with 4 guide strips 15 of the same length and equidistant, and are symmetrical along the side bisector perpendicular to the width direction of the film supply box 1; the film supply box 1 also includes a first rectangular groove 16 and a second rectangular groove 17 located between the guide strips 15 and symmetrically arranged along the center line of the width direction of the film supply box 1.

[0010] Furthermore, the first frame 2 includes a first limiting clip 21 and a first adapter plate 22, the first limiting clip 21 and the first adapter plate 22 are detachably connected, a protrusion 23 is provided at the bottom of the first limiting clip 21 corresponding to the position of the guide bar 15, and the first limiting clip 21 is 10 mm higher than the side wall 12; a trapezoidal notch is provided downwardly in the center of the top of the first limiting clip 21, the height of the trapezoidal notch is half of the height of the first limiting clip 21, the top length of the trapezoidal notch is half of the length of the first limiting clip 21, and an arc-shaped groove 24 is provided downwardly at the bottom of the trapezoidal notch; the first adapter plate 22 includes a first tooth plate 221 and a first connecting plate 222, the first connecting plate 222 and the first tooth plate 221 are detachably connected or integrally formed to form an L shape, the first connecting plate 222 is detachably connected to the side end face of the first limiting clamp 21, and the upper end face of the first tooth plate 221 is in sliding contact with the lower end face of the film supply box 1; the first tooth plate 221 is provided with a locking strip through hole 2211 along the middle part of the width direction of the film supply box 1, and the length of the locking strip through hole 2211 is greater than the length of the guide bar 15, and the first frame 2 is horizontally rotated 180° along the center point of the right side face of the first tooth plate 221 to obtain a structure identical to that of the second frame 3.

[0011] Furthermore, the first connecting plate 222 includes a support arm 2221 and a connecting side plate 2222, and is integrally formed. The support arm 2221 is connected to the first tooth plate 221. The first tooth plate 221 is provided with a first rack 2212 along a side close to the connecting side plate 2222. The length of the first rack 2212 is less than the length of the guide bar 15. The first rack 2212 and the first tooth plate 221 are integrally formed or detachably linked.

[0012] Furthermore, the first rectangular opening 18 is located on the side of the film supply box 1, with a length of 1.5 to 2 times the width of the first tooth plate 221 and a height greater than the thickness of the first adapter plate 22, and the connecting side plate 2222 passes through the first rectangular opening 18 and is connected to the first limiting clamp 21.

[0013] Furthermore, the second frame 3 includes a second limiting clamp 31 and a second adapter plate 32, and the second limiting clamp 31 and the second adapter plate 32 are detachably connected. The second limiting clamp 31 corresponds to the first limiting clamp 21 and is provided with the same number and the same protrusions 23 at the same position. The second adapter plate 32 is arranged parallel to the first adapter plate 22, and a gear 6 is provided therebetween for meshing connection. The lower end face of the first tooth plate 221 is in sliding contact with the bottom face of the first rectangular groove 16; the second adapter plate 32 has a second tooth plate 321 and a second connecting plate 322, and the second connecting plate 322 is detachably connected to the second tooth plate 321 or integrally processed to form an L shape, and the second connecting plate 322 is detachably connected to the side end face of the second limiting clamp 31.

[0014] Furthermore, the locking portion 4 includes a groove 19 and a locking and releasing knob 41. The groove 19 is located at the top of the film supply box 1 between the first rectangular groove 16 and the second rectangular groove 17. A threaded hole is provided on the bottom surface of the groove 19. The locking and releasing knob 41 includes a knob and a lower screw. The lower end surface of the knob contacts the upper surface of the groove 19. The screw passes through the threaded hole and extends into the guide bar-shaped through hole 3211 on the second tooth plate 321. The height of the groove 19 is greater than that of the knob.

[0015] Furthermore, the retreat portion 5 is provided with a limit plate 51 and a guide plate 52. The limit plate 51 and the guide plate 52 are detachably connected or integrally formed to form an L shape. The upper surface height of the limit plate 51 is greater than or equal to the upper surface height of the first limit clip 21 or the second limit clip 31. The limit plate 51 has a long elastic piece 511 on each side along the width direction of the film supply box 1. One end of the long elastic piece 511 is connected to the side of the limit plate 51, and the other end is provided with teeth. The upper surface of the guide plate 52 intersects with the lower surface of the limit plate 51, and the lower surface is embedded in the guide groove 110 at the bottom of the film supply box 1 and slides in contact with the upper surface of the guide groove 110. The lower surface of the guide plate 52 is provided with a slider 512, and the guide groove 110 is centrally opened with a strip guide through hole 1101 along the movement direction of the retreat portion 5 for the slider 512 to move.

[0016] Furthermore, the guide groove 110 is provided with racks 111 along the inner walls on both sides of the length direction of the film supply box 1, and is in single-phase ratchet engagement with the teeth of the long elastic piece 511; the first rectangular groove 16, the second rectangular groove 17 and the guide groove 110 are laterally provided with scales, and the ends of the first limit clamp 21 and the second limit clamp 31 and the outer side surface of the long elastic piece 511 are provided with triangular pointers.

[0017] A medical film printing device comprises the film supply box deviation correction device as described above.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1) It can effectively solve the problem of film skew when it is output from the film cassette, thereby solving the problems caused by the blockage of the conveying channel, skewed and / or missing images, avoiding unnecessary repairs and maintenance, improving printer utilization, and eliminating possible medical accidents and disputes;

[0020] 2) The device has a simple structure, which reduces procurement costs and subsequent maintenance difficulties;

[0021] 3) Ability to match currently common films of different sizes and specifications and have certain compatibility with future new film sizes and specifications;

[0022] 4) The film cassette deviation correction device has a compact structure and occupies little space, ensuring the effective storage space of the film cassette. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the drawer film box in the prior art;

[0024] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0025] Figure 3 This is a structural diagram of a position limiting member in the prior art in a first state;

[0026] Figure 4 It is a structural diagram of a sheet skew adjustment mechanism in the prior art;

[0027] Figure 5 It is an exploded view of a sheet skew adjustment mechanism in the prior art;

[0028] Figure 6 This is a schematic structural diagram of Example 1 of the present utility model;

[0029] Figure 7 This is a schematic diagram of the first rectangular opening structure of Example 1 of the utility model;

[0030] Figure 8 This is a schematic diagram of the gear connection structure between the first frame and the second frame in Example 1 of the present utility model;

[0031] Figure 9 This is a schematic diagram of the first frame structure of Example 1 of the utility model;

[0032] Figure 10 This is a schematic diagram of the protruding structure at the bottom of the first frame in Example 1 of the present utility model;

[0033] Figure 11 This is a schematic diagram of the second frame structure of Example 1 of the utility model;

[0034] Figure 12 This is a schematic structural diagram of the stop portion of Example 1 of the present utility model.

[0035] Among them, 1-film box, 11-front wall, 12-side wall, 13-rear wall, 14-bottom plate, 15-guide bar, 16-first rectangular groove, 17-second rectangular groove, 18-first rectangular opening, 19-groove, 110-guide groove, 1101-bar guide through hole 111-rack, 2-first frame, 21-first limit clip, 22-first adapter plate, 221-first tooth plate, 2211-locking strip through hole, 2212-first rack, 222-first connecting plate, 2221-support arm, 2222-connecting side plate, 23-protrusion, 24-arc-shaped groove, 3-second frame, 31-second limiting clip, 32-second adapter plate, 321-second tooth plate, 3211-guide strip through hole, 322-second connecting plate, 4-locking part, 41-locking release knob, 5-retraction part, 51-limiting plate, 511-long elastic sheet, 512-slider, 52-guide plate, 6-gear. DETAILED DESCRIPTION

[0036] To make the purpose, technical solution, and advantages of the present invention more clear, the following will provide a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0037] In the description of this utility model, it should be noted that the terms "upper," "lower," "horizontal," "top," "side," "far," "near," "inner," and "outer" and other terms indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] In this utility model, it should be noted that, unless otherwise specified or limited, terms such as "connection" should be understood in a broad sense. For example, it can mean fixed connection, detachable connection, or integration; it can mean direct connection or indirect connection through an intermediate medium; it can mean internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0039] Example 1

[0040] See Figure 6-12 The film supply cassette 1 is a rectangular resin disc-shaped component that is integrally formed with a rectangular bottom plate 14, a front wall 11 surrounding the bottom plate, a rear wall 13, and a pair of side walls 12 to form a film storage space. The film supply cassette 1 is made of plastic, such as PC+ABS, but is not limited to this material.

[0041] Specifically, a pair of side walls 12 are disposed on either side of the upper surface of a rectangular base plate 14 along the length of the film cassette 1. A front wall 11 is disposed at the end of the film cassette 1 where it connects to the printer body. After the film cassette is inserted into the printer's housing, the front wall 11 contacts the printer body, thereby overlapping the film feed path. Furthermore, during the insertion of the film cassette 1 into the printer's housing, the front wall 11 contacts the edge of the film within the cassette 1, preventing the film from entering the printer body and / or the feed path due to inertia, potentially causing blockage and other malfunctions.

[0042] In addition, a rear wall 13 is provided at the end of the film cassette 1 away from the main body of the printing device. The stopper 5 is provided on the same side as the rear wall 13 and centered on the bottom plate 14. The rear wall 13 is formed into two symmetrical sections along a line perpendicular to the width of the film cassette 1, and both sections are connected to the adjacent side wall 12.

[0043] Preferably, the front wall 11 , the rear wall 13 and the pair of side walls 12 have the same height and thickness, thereby reducing the difficulty of integrated molding.

[0044] The films loaded into the film supply cassette 1 typically have rectangular dimensions, such as 8 x 10 inches, 10 x 12 inches, 11 x 14 inches, and 14 x 17 inches. Furthermore, in the film supply cassette 1 of this embodiment, the length of the loaded films is parallel to the length of the film supply cassette 1. The dimension between the front wall 11 and the rear wall 13 is set to the maximum film size during loading. Therefore, the distance from the stop 5 to the front wall 11 is the length of the longer side of the film.

[0045] To accommodate films of various sizes and prevent the film from skewing during film feeding by the printing device's film feed assembly, a film deflection correction device is provided in the film feed cassette 1. The deflection correction device comprises a first frame 2, a second frame 3, a locking portion 4, and a retracting portion 5, which are movable in the width direction relative to the film feed cassette base plate 14.

[0046] The first frame 2 includes a first limiting clamp 21 provided on one side in the width direction of the film supply box 1 and a first adapter plate 22 extending from one side in the width direction of the film supply box toward the center. The first limiting clamp 21 and the first adapter plate 22 are detachably connected or integrally formed in a T shape. Preferably, the first limiting clamp 21 and the first adapter plate 22 are detachably connected to facilitate replacement / maintenance of the first adapter plate 22. The first limiting clamp 21 is slidably connected to the top of the film supply box 1.

[0047] Correspondingly, the second frame 3 includes a second limiting clamp 31 provided on the other side of the width direction of the film supply box 1 and a second adapter plate 32 extending from the other side of the width direction of the film supply box 1 to the center. The second limiting clamp 31 is slidably connected to the top of the film supply box 1, and the second limiting clamp 31 and the second adapter plate 32 are detachably connected.

[0048] The second rack 3 is arranged parallel to the first rack 2 and opposite to each other. A gear 6 is provided between the first adapter plate 22 and the second adapter plate 32. The gear 6 is meshed and connected with the first adapter plate 22 and the second adapter plate 32. The rotating axis of the gear 6 is set at the bottom of the gear. Preferably, the gear 6 is located on the center line of the width direction of the film supply box 1 and is biased to the side of the front wall 11 in the length direction.

[0049] On the side of the film cassette base plate 14 near the front wall 11, several guide bars 15 of equal length and equidistant spacing are provided parallel to the width of the cassette 1. These guide bars 15 are formed as through holes or grooves. The use of identical holes or grooves ensures precision in the integrated process. By way of example, there are four guide bars 15, arranged symmetrically along a line bisector perpendicular to the width of the cassette 1. This arrangement promotes uniform force distribution across the cassette, ensuring the strength of the cassette base plate 14. Furthermore, a greater number of guide bars can be provided. The choice of which guide bars to use depends on the specific situation and will not be elaborated upon here.

[0050] The bottom surface of the first limiting clip 21 is provided with a plurality of protrusions 23. For example, there are two protrusions 23, each corresponding one-to-one with the guide strips 15 provided on the bottom plate 14, and slidingly connected to the guide strips 15. The second limiting clip 31 corresponds to the first limiting clip 21 and is provided with the same number and identical protrusions in the same positions. Of course, as described above regarding the number of guide strips 15, a larger number of protrusions 23 can also be provided. The choice of which protrusion 23 to use depends on the actual situation and will not be elaborated here.

[0051] The first retaining clip 21 is 10 mm taller than the side wall 12, thick enough to accommodate 100 stacked films. For example, a trapezoidal notch is positioned downwardly from the center of the top of the first retaining clip 21. The top of the notch is wider than the bottom, the height of the notch is half the height of the first retaining clip 21, and the length of the top of the notch is half the length of the first retaining clip 21. Furthermore, a curved groove 24 is positioned downwardly from the bottom of the notch. The arrangement of the notch and the curved groove 24 not only facilitates the loading and unloading of films but also reduces the weight of the first retaining clip 21, allowing the user to easily slide the first retaining clip 21.

[0052] Illustratively, a first rectangular groove 16 and a second rectangular groove 17 are located between the guide bars 15 and are symmetrically arranged along the center line of the width direction of the film supply box 1. Taking the first rectangular groove 16 as an example, its length along the length direction of the film supply box 1 is greater than the length of the first adapter plate 22, its length along the width direction of the film supply box 1 is greater than the length of the guide bar 15, and its depth in the vertical direction is greater than the thickness of the first adapter plate 22. The first rectangular groove 16 is used to accommodate the first adapter plate 22 to slide inside.

[0053] The first adapter plate 22 includes a first tooth plate 221 and a first connecting plate 222. The first connecting plate 222 is detachably connected to the first tooth plate 221 or integrally formed with the first tooth plate 221 to form an L-shape. The first connecting plate 222 is detachably connected to the side end surface of the first limiting clamp 21. The second adapter plate 32 includes a second tooth plate 321 and a second connecting plate 322. The second connecting plate 322 is detachably connected to the second tooth plate 321 or integrally formed with the second tooth plate 321 to form an L-shape. The second connecting plate 322 is detachably connected to the side end surface of the second limiting clamp 31. For example, using the first rack as an example, the first tooth plate 221 is disposed along the width of the film supply cassette 1 and is generally strip-shaped. It is located on one side of the base plate 14. The upper end surface of the first tooth plate 221 is in sliding contact with the lower end surface of the film supply cassette 1. A locking bar-shaped through hole 2211 is defined in the middle portion of the first tooth plate 221 along the width of the film supply cassette 1. The length of the locking bar through hole 2211 is greater than the length of the guide bar 15. Illustratively, the first connecting plate 222 includes a support arm 2221 and a connecting side plate 2222, both integrally formed to form a right-angled triangle, which enhances the stability of the first connecting plate 222. The support arm 2221 is connected to the first tooth plate 221. A first rack 2212 is provided along a side of the first tooth plate 221 adjacent to the connecting side plate 2222. The length of the first rack 2212 is less than the length of the guide bar 15. The first rack 2212 is integrally formed with the first tooth plate 221, simplifying installation. The first rack 2212 is also removably connected to the first tooth plate 221 for easy replacement / maintenance. The first rectangular opening 18 is located on the side of the film supply cassette 1, with its bottom edge and center point coinciding with the edge and center point of the first rectangular groove on the side away from the side wall, respectively. The length of the first rectangular opening 18 along the length of the film supply cassette 1 is 1.5 to 2 times the width of the first tooth plate 221, and its height is greater than the thickness of the first adapter plate 22. The connecting side plate 2222 passes through the first rectangular opening 18 and is connected to the first limiting clip 21. The first limiting clip 21 slides left and right along the width direction of the film supply box 1 in the first rectangular groove 18, driving the first tooth plate 221 to extend into / exit the first rectangular groove 18. The lower end surface of the first tooth plate 221 is in sliding contact with the bottom surface of the first rectangular groove 16.

[0054] The structure obtained by rotating the first frame 2 180° along the center point of the right side of the first tooth plate 221 is the same as that of the second frame 3. For those skilled in the art, combined with the above description of the first frame 2 and the connection relationship between the first frame 2 and the base plate 14, they can fully understand and / or reproduce the connection relationship between the second frame 3 and the base plate 14, so they will not be repeated here.

[0055] The locking portion 4 includes a groove 19 and a locking and releasing knob 41, which are used to lock or release the relative position relationship between the first frame 2 and the second frame 3. For example, the film supply cassette 1 is located between the first rectangular groove 16 and the second rectangular groove 17, and a groove 19 is provided at the top. The bottom surface of the groove 19 is provided with a threaded hole or a through hole. Taking the threaded hole as an example, the locking and releasing knob 41 includes a knob and a screw. The lower end surface of the knob contacts the upper surface of the bottom of the groove 19. The screw passes through the threaded hole and extends into the guide bar-shaped through hole 3211 on the second tooth plate 321. By turning the locking and releasing knob, the relative position relationship between the second tooth plate 321 and the film supply cassette 1 can be locked or released. In addition, the relative position relationship between the first frame 2 and the second frame 3 is locked or released, achieving the purpose of loading films of different sizes and limiting the film position. Preferably, the depth of the groove 19 is greater than the thickness of the knob to prevent the knob from being higher than the plane around the top of the groove when the film is placed in the storage area formed between the first limiting clamp and the second limiting clamp, thereby scratching the film and affecting the image printing quality.

[0056] The stopper 5 comprises a limit plate 51 and a guide plate 52. The limit plate 51 and the guide plate 52 are detachably connected or integrally formed to form an L-shape. The limit plate 51 is centrally located across the width of the film cassette 1. In conjunction with the first frame 2, the second frame 3, and the locking portion 4, the limit plate 51 can be used to limit the displacement of films along the length of the film cassette 1, preventing them from slipping out or moving, while also accommodating the loading of films of varying sizes. For example, the limit plate 51 and the guide plate 52 are integrally formed to form an L-shape. The limit plate 51 extends upward perpendicular to the width of the film cassette 1, with its upper end surface flush with or higher than the upper end surface of the first limit clip 21 or the second limit clip 31 disposed at the bottom of the film cassette 1. The limit plate 51 has elongated elastic strips 511 on either side of the width of the film cassette 1. One end of the elongated elastic strips 511 is connected to the side of the limit plate 51, and the other end is provided with teeth. The upper surface of the guide plate intersects with the lower surface of the limiting plate. The lower surface of the guide plate 52 is embedded in the guide groove 110 of the bottom plate 14 of the film supply box 1 and is in sliding contact with the upper surface of the guide groove 110.

[0057] Preferably, a slider 512 is further provided on the lower surface of the guide plate 52, and the guide groove 110 is further provided with a strip-shaped guide hole 1101 centered along the movement direction of the retreat part 5 for the movement of the slider 512, so that the retreat part 5 can move forward / backward stably and smoothly along the delivery direction. Preferably, racks 111 are provided on the side walls of the guide groove 110 along the length direction of the film supply box 1, and the teeth of the long elastic piece 511 form a single-phase ratchet engagement with the rack 111 of the guide groove 110, and under the action of the long elastic piece 511 of the limit plate 51, the position of the retreat portion 5 relative to the guide groove is fixed; when pressure is applied to the long elastic pieces 511 on both sides, the engagement state between the teeth of the long elastic piece 511 and the rack 111 of the guide groove 110 is released, and the retreat portion 5 can be moved forward / backward along the guide groove 110, thereby limiting the displacement of the film, preventing the film from slipping out or moving from the film storage box, and also meeting the requirements of film loading of different specifications and sizes. If pressure is applied only to one side of the elongated elastic piece 511, the teeth of the other side of the elongated elastic piece 511 and the rack 111 of the guide groove 110 cannot be released due to the single-phase ratchet design, and the stopper 5 cannot move, further ensuring the stability of the engaged state. Preferably, a scale is provided at a preset position on the bottom plate 14 of the film supply cassette to facilitate the user to quickly and accurately adjust the positions of the first limiting clip, the second limiting clip, and the stopper in the deviation correction device. For example, on the upper surface of the bottom plate 14 of the film supply box, along the width direction, there are scales marked with 8*10inch, 10*12inch, 11*14inch and 14*17inch on the side wall from the center to the first limit clamp; similarly, there are scales marked with 8*10inch, 10*12inch, 11*14inch and 14*17inch on the side wall from the center to the second limit clamp; on the upper surface of the bottom plate 14 of the film supply box on the left side of the guide groove, there is a scale marked with 14*17inch, 11*14inch, 10*12inch and 8*10inch in sequence from the rear wall to the front wall.

[0058] Preferably, indicator mechanisms are provided at the preset positions of the first and second limiting clips, and the stop, to coordinate with the scale provided at the preset positions on the bottom plate 14 of the film cassette, allowing the user to quickly and accurately adjust the positions of the first and second limiting clips, and the stop in the correction device. For example, triangular indicators are provided at the ends of the first and second limiting clips, and a triangular indicator is provided on the outer side of the elongated elastic piece of the stop.

[0059] Example 2

[0060] This embodiment provides a medical film printing device, which includes the film supply box deviation correction device as described above.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

[0062] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A film cassette deviation correction device, characterized in that: The invention comprises a film supply box (1) and a film deflection correction device, wherein the film supply box (1) comprises a bottom plate (14), and the film deflection correction device comprises a first frame (2), a second frame (3), a locking portion (4) and a retracting portion (5), wherein the first frame (2) and the second frame (3) are slidably connected to the film supply box (1), the locking portion (4) passes through the upper surface of the film supply box (1) and is connected to the second frame (3), and the retracting portion (5) is slidably connected to the upper surface of the bottom plate (14).

2. The film cassette deviation correction device according to claim 1, characterized in that: The film supply box (1) further comprises a front wall (11), a side wall (12) and a rear wall (13); the front wall (11), the side wall (12) and the rear wall (13) have the same thickness and the film supply box (1) is an integrally formed structure; the film supply box (1) is made of plastic; the bottom plate (14) is provided with four guide strips (15) of the same length and equidistant from each other and symmetrical along a side bisector perpendicular to the width direction of the film supply box (1); the film supply box (1) further comprises a first rectangular groove (16) and a second rectangular groove (17) located between the guide strips (15) and symmetrically arranged along a midline in the width direction of the film supply box (1).

3. The film cassette deviation correction device according to claim 2, characterized in that: The first frame (2) includes a first limiting clamp (21) and a first adapter plate (22), the first limiting clamp (21) and the first adapter plate (22) are detachably connected, a protrusion (23) is provided at the bottom of the first limiting clamp (21) corresponding to the position of the guide bar (15), and the first limiting clamp (21) is 10 mm higher than the side wall (12); a trapezoidal notch is provided at the center of the top of the first limiting clamp (21) and is half the height of the first limiting clamp (21), the top length of the trapezoidal notch is half the length of the first limiting clamp (21), and an arc-shaped groove (24) is provided at the bottom of the trapezoidal notch; the first adapter plate (22) includes a first tooth plate (22 1) and a first connecting plate (222), the first connecting plate (222) and the first tooth plate (221) are detachably connected or integrally formed to form an L shape, the first connecting plate (222) is detachably connected to the side end face of the first limiting clamp (21), the upper end face of the first tooth plate (221) is in sliding contact with the lower end face of the film supply box (1); the first tooth plate (221) is provided with a locking bar through hole (2211) along the middle part of the width direction of the film supply box (1), the length of the locking bar through hole (2211) is greater than the length of the guide bar (15), and the first frame (2) is horizontally rotated 180° along the center point of the right side face of the first tooth plate (221) to obtain a structure identical to that of the second frame (3).

4. The film cassette deviation correction device according to claim 3, characterized in that: The first connecting plate (222) includes a support arm (2221) and a connecting side plate (2222), and is integrally formed. The support arm (2221) is connected to the first tooth plate (221). The first tooth plate (221) is provided with a first rack (2212) along a side close to the connecting side plate (2222). The length of the first rack (2212) is less than the length of the guide bar (15). The first rack (2212) and the first tooth plate (221) are integrally formed or detachably connected.

5. The film cassette deviation correction device according to claim 4, characterized in that: The first rectangular opening (18) is located on the side of the film supply box (1), has a length of 1.5 to 2 times the width of the first tooth plate (221), and a height greater than the thickness of the first adapter plate (22). The connecting side plate (2222) passes through the first rectangular opening (18) and is connected to the first limiting clamp (21).

6. The film cassette deviation correction device according to claim 3, characterized in that: The second frame (3) comprises a second limiting clamp (31) and a second adapter plate (32), the second limiting clamp (31) and the second adapter plate (32) are detachably connected, the second limiting clamp (31) is provided with the same number and the same protrusions (23) at the same position as the first limiting clamp (21), the second adapter plate (32) is arranged parallel to and opposite to the first adapter plate (22), and a gear (6) is provided therebetween for meshing connection, the lower end surface of the first tooth plate (221) is in sliding contact with the bottom surface of the first rectangular groove (16); the second adapter plate (32) has a second tooth plate (321) and a second connecting plate (322), the second connecting plate (322) and the second tooth plate (321) are detachably connected or integrally processed to form an L shape, and the second connecting plate (322) is detachably connected to the side end surface of the second limiting clamp (31).

7. The film cassette deviation correction device according to claim 6, characterized in that: The locking portion (4) includes a groove (19) and a locking and releasing knob (41), wherein the groove (19) is located at the top of the film supply box (1) between the first rectangular groove (16) and the second rectangular groove (17), and a threaded hole is provided on the bottom surface of the groove (19). The locking and releasing knob (41) includes a knob and a lower screw, wherein the lower end surface of the knob contacts the upper surface of the groove (19), and the screw extends through the threaded hole into the guide bar-shaped through hole (3211) on the second tooth plate (321), and the height of the groove (19) is greater than that of the knob.

8. The film cassette deviation correction device according to claim 6, characterized in that: The stop portion (5) is provided with a limit plate (51) and a guide plate (52), the limit plate (51) and the guide plate (52) are detachably connected or integrally formed to form an L shape, the upper surface height of the limit plate (51) is greater than or equal to the upper surface height of the first limit clip (21) or the second limit clip (31), the limit plate (51) has a long elastic piece (511) on each side along the width direction of the film supply box (1), one end of the long elastic piece (511) is connected to the The limiting plate (51) is connected to the side, and the other end is provided with teeth. The upper surface of the guide plate (52) intersects with the lower surface of the limiting plate (51), and the lower surface is embedded in the guide groove (110) at the bottom of the film supply box (1) and is in sliding contact with the upper surface of the guide groove (110). The lower surface of the guide plate (52) is provided with a slider (512), and the guide groove (110) is provided with a strip-shaped guide through hole (1101) in the center along the movement direction of the retreat portion (5) for the slider (512) to move.

9. The film cassette deviation correction device according to claim 8, characterized in that: The guide groove (110) is provided with racks (111) on both sides of the inner wall along the length direction of the film supply box (1), and is engaged with the teeth of the long elastic piece (511) in a single-phase ratchet manner; the first rectangular groove (16), the second rectangular groove (17) and the guide groove (110) are provided with scales on the side, and the ends of the first limiting clamp (21) and the second limiting clamp (31) and the outer side surface of the long elastic piece (511) are provided with triangular pointers.

10. A medical film printing device, characterized in that: The medical film printing device comprises the film feed box deviation correction device according to any one of claims 1 to 9.

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