Pressing sheet lifting mechanism and copying sheet clamp

Abstract

The utility model discloses a film pressing lifting mechanism and a copying film clip capable of automatically detecting the length of a film picture, which comprise an upper cover and a base, a film pressing mechanism is arranged between the upper cover and the base, a light-transmitting window of the upper cover is positioned above a light-transmitting area of the base, the base is provided with a sinking groove, two sides of the sinking groove are provided with convex ribs, and the convex ribs are arranged in the sinking groove. The ribs are supporting planes for supporting the film, and when the balls retreat from or fall into the falling holes, the film pressing planes and the supporting planes are released or the film is flattened; a light source is arranged on a control panel of an inner cavity of the base, light of the light source is transmitted out through the light transmitting area, and a feeding mechanism for feeding the film forwards is further installed on the base. The automatic feeding device has the advantages that automatic feeding of the film is achieved, the film is pressed during copying through lifting of the pressing piece lifting mechanism, flatness of the film is guaranteed, copying quality is improved, the pressing piece lifting mechanism can be separated from the film after being lifted, and conveying of the film without surface friction is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the rephotographing of a film, in particular to a film pressing and lifting mechanism and a rephotographing film holder. BACKGROUND

[0002] Today when digital image equipment is popular, there are still many fans of traditional silver salt films, and new generations of young people are constantly joining this team. Traditional silver salt has a digital demand for modern communication methods. Films are generally scanned by a film scanner. However, the film scanner is basically an old product from the last century. Whether it is a Hasselblad X5 system or a Kodak Perfection flatbed scanning system, these machines are expensive, large in size, inconvenient to operate, slow, and have a high digital cost, and cannot meet the low-cost and high-speed digital needs of modern society.

[0003] Rephotography has a very low implementation threshold, and there are many implementation methods on the market, such as most external rephotography lights, magnetic film holders, or 3D printed film holders. The camera is fixed on a rephotography stand or a tripod, the light source is placed on the rephotography table, and the film holder is moved to align and focus. Multiple moving parts make the rephotography very inconvenient, and the rephotography effect is also greatly discounted. There are various film advancing mechanisms, such as manual rolling film advancing, magnetic film holder pulling film advancing, and electric film advancing. However, only manual operation or equidistant automatic film advancing is supported. If the film advancing is not uniform when the film camera is shooting (120 camera film advancing is not accurate), equidistant film advancing will cause cumulative errors, and the last pictures cannot be seen after rephotography. The film must be flat, and most of the market relies on the film advancing gap to limit the flatness of the film, which will inevitably result in two outcomes: scratching the film or not being flat, both of which are unreliable. SUMMARY

[0004] The utility model aims at overcoming the shortcomings of prior art, and provides a film pressing and lifting mechanism and a rephotography film holder.

[0005] The utility model discloses a film pressing and lifting mechanism, including the base, the base has the light transmission area, a plurality of blind holes are set up on the base at the left and right sides of the light transmission area, a plurality of blind holes are spaced apart along the front and back directions, the ball is installed in the blind hole, and part of the ball protrudes from the blind hole, the telescopic component is also installed on the base at the left and right sides of the light transmission area, the telescopic component is located on the outside of the blind hole, the pin shaft is installed on the telescopic shaft of telescopic component, the pin shaft is perpendicular to the telescopic shaft, and the pin shaft can slide up and down along the telescopic shaft, the pin shaft is connected with the film pressing piece, the film pressing piece is set up with the falling hole corresponding to the ball, when the telescopic shaft is telescopic, the top of the ball can fall into the falling hole or exit the falling hole.

[0006] Optionally, the telescopic component is a DC push-pull electromagnet.

[0007] Optionally, the tablet pressing member is a pressing frame, the middle region of the pressing frame is a light-transmitting hole, the light-transmitting hole is located above the light-transmitting region, the bottom of the pressing frame has a protruding part, a step surface is formed on the pressing frame, the bottom surface of the protruding part is a tablet pressing surface, and the falling-in hole is formed on the step surface.

[0008] Optionally, the tablet pressing member comprises upper and lower laminated pressing plates and a light-transmitting pressing plate, the two pressing plates are locked by locking screws, and the left and right ends of the light-transmitting pressing plate are clamped by the pressing plates, the light-transmitting pressing plate is located above the light-transmitting region.

[0009] Optionally, the bottom of the base is provided with a magnet mounting cavity, an electromagnet is mounted in the magnet mounting cavity, and a switch for controlling the electrification or de- electrification of the electromagnet is arranged on the base.

[0010] Optionally, the bottom of the base is provided with a magnet mounting cavity, an electromagnet is mounted in the magnet mounting cavity, and a switch for controlling the electrification or de- electrification of the electromagnet is arranged on the base.

[0011] Optionally, the bottom of the base is provided with a longitudinal movement mechanism, the longitudinal movement mechanism comprises a sliding seat and a fixed cross beam, the sliding seat is connected to the bottom of the base, the bottom of the sliding seat is provided with a plurality of rollers, the upper surface of the sliding seat is provided with a mounting groove, at least two groups of linear movement pairs distributed longitudinally are mounted in the mounting groove, the fixed cross beam is transversely arranged on the sliding members of the linear movement pairs, a lead screw movement pair is further mounted in the mounting groove, and the lead screw of the lead screw movement pair is threadedly connected with the fixed cross beam.

[0012] Optionally, the bottom of the base is provided with a longitudinal movement mechanism, the longitudinal movement mechanism comprises a sliding seat and a fixed cross beam, the sliding seat is connected to the bottom of the base, the bottom of the sliding seat is provided with a plurality of rollers, the upper surface of the sliding seat is provided with a mounting groove, at least two groups of linear movement pairs distributed longitudinally are mounted in the mounting groove, the fixed cross beam is transversely arranged on the sliding members of the linear movement pairs, a lead screw movement pair is further mounted in the mounting groove, and the lead screw of the lead screw movement pair is threadedly connected with the fixed cross beam.

[0013] Optionally, the two ends of the fixed crossbeam are provided with protrusions, the bottom of the mounting slot is provided with through holes corresponding to the protrusions, the protrusions are located in the corresponding through holes, and the bottom of the protrusion is provided with a magnet mounting cavity, and an electromagnet is mounted in the magnet mounting cavity.

[0014] Optionally, the feeding mechanism comprises a motor and a tablet pressing mechanism, the tablet pressing mechanism comprises first shafts and second shafts, the first shafts and the second shafts are rotatably installed on the base, the second shafts are located above the first shafts, the two ends of the first shafts are provided with feeding wheels, the two ends of the second shafts are provided with rotatable tablet pressing wheels, the tablet pressing wheels are located above the corresponding feeding wheels, the gap between the tablet pressing wheels and the feeding wheels matches the thickness of the tablets, the base is further provided with mounting holes corresponding to the feeding wheels, the mounting holes extend upward and form notches corresponding to the protrusions, the top portions of part of the feeding wheels are located in the notches, and the top portions of the feeding wheels are flush with the supporting plane, the motor is in power transmission connection with the first shafts, and the first shafts are in transmission connection.

[0015] Optionally, the base is further provided with a detection module, the detection module is located behind the light transmission area, the detection module comprises a second light source, the second light source is installed on the control panel and located behind the first light source, the base is provided with a cavity corresponding to the first light source, the top of the cavity is provided with a light transmission slot, the top of the base is provided with a PCB, and a CCD image sensor is installed on the PCB and located above the light transmission slot.

[0016] Optionally, the feeding mechanism comprises a motor and a tablet pressing mechanism, the tablet pressing mechanism comprises first shafts and second shafts, the first shafts and the second shafts are rotatably installed on the base, the second shafts are located above the first shafts, the left and right ends and the middle part of the first shafts are provided with feeding wheels, the left and right ends of the second shafts are provided with rotatable tablet pressing wheels, the tablet pressing wheels are located above the corresponding feeding wheels, the gap between the tablet pressing wheels and the feeding wheels matches the thickness of the tablets, the base is further provided with mounting holes corresponding to the feeding wheels, the mounting holes extend upward and form notches corresponding to the protrusions, the top portions of part of the feeding wheels are located in the notches, and the top portions of the feeding wheels are flush with the supporting plane, the motor is in power transmission connection with the first shafts, and the first shafts are in transmission connection, the tablet pressing mechanism further comprises a pressing wheel switching mechanism, the pressing wheel switching mechanism comprises a rotating piece, a hanging frame and a lower pressing wheel, the lower pressing wheel is rotatably installed on the hanging frame and located above the feeding wheel in the middle part of the first shaft, the top of the hanging frame passes through the upper cover and is provided with a hook, the rotating piece is placed on the upper cover and is provided with a hanging hole and a hanging rod, the hook passes through the hanging hole and is hung on the hanging rod, and the width of the hanging rod is inconsistent with the height, when the lower pressing wheel is in the lower stroke, the gap between the lower pressing wheel and the feeding wheel in the middle part of the first shaft matches the thickness of the tablet.

[0017] Optionally, the base is further provided with a detection module, the detection module is located behind the light transmission area, the detection module comprises a second light source, the second light source is installed on the control panel, and the second light source is located behind the first light source, a cavity corresponding to the first light source is formed in the base, a light transmission gap is formed in the top of the cavity, a PCB is installed on the top of the base, and a CCD image sensor is installed on the PCB and located above the light transmission gap.

[0018] The utility model has the advantages that the utility model discloses a double -sided printing film clamp, realizes the automatic feed of film, and through the lifting of pressing film lifting mechanism, when taking photograph, the film is pressed, and then the double -sided printing quality of film is guaranteed, and when the pressing film lifting mechanism rises, can also separate from the film, and the conveying of film is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is structural schematic diagram of example one;

[0020] Figure 2 It is distribution schematic diagram of feeding mechanism, detection module and pressing film lifting mechanism on base in example one;

[0021] Figure 3 It is structural schematic of pressing film lifting mechanism in example one Figure 1 ;

[0022] Figure 4 It is structural schematic of pressing film lifting mechanism in example one Figure 2 ;

[0023] Figure 5 It is structural schematic diagram of ball entering into falling hole in example one;

[0024] Figure 6 It is structural schematic diagram of ball lifting pressing frame in example one;

[0025] Figure 7 It is structural schematic diagram of base in example one;

[0026] Figure 8 It is structural schematic diagram of detection module in example one;

[0027] Figure 9 It is structural schematic diagram of feeding mechanism in example one;

[0028] Figure 10 It is structural schematic diagram of example three;

[0029] Figure 11 It is distribution schematic diagram of feeding mechanism, detection module and pressing film lifting mechanism on base in example three;

[0030] Figure 12 Structure diagram of tablet pressing lifting mechanism for example two and example three Figure 1

[0031] Figure 13 Structure diagram of tablet pressing lifting mechanism for example two and example three Figure 2

[0032] Figure 14 Structure diagram of ball entering into falling hole for example two and example three

[0033] Figure 15 Structure diagram of ball lifting pressing frame for example two and example three

[0034] Figure 16 Structure diagram of base for example three

[0035] Figure 17 Structure diagram of longitudinal moving mechanism Figure 1

[0036] Figure 18 Structure diagram of longitudinal moving mechanism Figure 2

[0037] Figure 19 Structure diagram of relative position of pressing wheel switching mechanism and tablet pressing mechanism

[0038] Figure 20 Structure diagram of pressing wheel switching mechanism

[0039] In the figure, 1 is an upper cover, 2 is a base, 3 is a tablet pressing lifting mechanism, 4 is a feeding mechanism, 5 is a detection module, 6 is a control panel, 7 is a longitudinal moving mechanism, 8 is a pressing wheel switching mechanism, 11 is an extension assembly, 12 is an adsorption shaft, 13 is a pin shaft, 14 is a tablet pressing piece, 15 is a falling hole, 16 is a ball, 17 is a light transmission hole, 18 is a tablet pressing plane, 19 is a step surface, 21 is a mounting protrusion, 22 is an electromagnet mounting area, 23 is a light transmission seam, 24 is a light transmission area, 25 is a supporting plane, 26 is a sinking groove, 27 is a mounting hole, 41 is a motor, 42 is a first shaft, 43 is a feeding wheel, 44 is a second shaft, 45 is a tablet pressing wheel, 46 is a belt wheel, 47 is a tension spring, 51 is a second light source, 52 is a cavity, 53 is a PCB board, 54 is a first light source, 71 is a sliding seat, 72 is a mounting groove, 73 is a linear moving pair, 74 is a sliding crossbeam, 75 is a screw moving pair, 76 is a roller, 77 is a perforation, 78 is a protrusion, 79 is a magnet mounting cavity, 111 is a light transmission pressing plate, 112 is a light transmission supporting plate, 81 is a rotating piece, 82 is a hook, 83 is a lower pressing wheel, 84 is a hanging hole, and 85 is a hanging frame. DETAILED DESCRIPTION

[0040] ​​​​In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0041] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0042] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0043] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0044] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the present application is used, or the orientation or positional relationship commonly understood by those skilled in the art, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0045] In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set", "mount", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. Embodiment

[0046] AsFigure 1 As shown in the drawings, a film holder mainly suitable for small format films such as 135 film, comprises an upper cover 1 having a light transmission window and a film pressing and lifting mechanism 3, further as shown in the drawings Figure 3 and Figure 4 As shown in the drawings, the film pressing and lifting mechanism 3 comprises a base 2, as shown in the drawings Figure 2 As shown in the drawings, the base 2 has a light transmission area 24, and a plurality of blind holes are formed on the base 2 at both sides of the light transmission area 24, the plurality of blind holes are distributed along the front and back directions, in this embodiment, the film conveying direction is regarded as the front, as shown in the drawings Figures 3-6As shown, the blind hole is provided with the ball 16, and part of the ball 16 protrudes from the blind hole, and the base 2 is further provided with the telescopic assembly 11 on both sides of the light transmission area 24, the telescopic assembly 11 is located outside the blind hole, the pin shaft 13 is installed on the telescopic shaft 12 of the telescopic assembly 11, the pin shaft 13 is perpendicular to the telescopic shaft 12, and the pin shaft 13 can slide up and down along the telescopic shaft 12, the bottom of the pin shaft 13 is connected with the pressing piece 14, the pressing piece 14 is provided with the falling hole 15 corresponding to the ball 16, when the telescopic shaft 12 is telescoped, the top of the ball 16 can fall into the falling hole 15 or exit from the falling hole 15, the upper cover 1 is installed on the base 2, specifically, the telescopic assembly 11 is a direct current push-pull electromagnet, the base is provided with the electromagnet mounting area for installing the direct current push-pull electromagnet, when the direct current push-pull electromagnet is powered on, the telescopic shaft 12 is retracted, at this time, the telescopic shaft 12 drives the pressing piece 14 to move forward and backward, and then the ball 16 moves relative to the pressing piece 14, further, the direct current push-pull electromagnet has only two states, i.e. the power-on state and the power-off state, correspondingly, when the direct current push-pull electromagnet is in the power-on state, the ball 16 is aligned with the falling hole 15, at this time, the top of the ball 16 is located in the falling hole 15, at this time, the pressing piece 14 is lowered, and then the edges of the left and right ends of the film are pressed to keep the position of the film fixed, and then the film is convenient to be flipped, and after power-off, the telescopic shaft 12 is reset under the action of the reset spring, at this time, the ball 16 exits from the falling hole 15, due to the existence of the ball 16, the ball 16 lifts the pressing piece 14, and the pressing piece 14 can only move upward under the limitation of the pin shaft 13, therefore, after the pressing piece 14 is lifted, the pressing piece 14 is separated from the film, and the film is convenient to be conveyed, in the embodiment, the light transmission window of the upper cover 1 is located above the light transmission area 24 of the base 2, the base 2 is provided with the sunken groove 26 in the front and back directions, the left and right sides of the sunken groove 26 are provided with the convex ribs, the surface of the convex rib is the supporting plane 25 for supporting the film, when the ball 16 exits from the falling hole 15, the gap between the pressing plane 18 and the light transmission supporting plate 112 is greater than the thickness of the film, the control panel 6 is further installed in the inner cavity of the base 2, the control panel 6 is provided with the first light source 54, and the light of the first light source 54 is transmitted through the light transmission area 24, the base 2 is further provided with the feeding mechanism 4 for feeding the film forward, in use, the feeding mechanism 4 works to convey the film forward, the left and right sides of the film move on the supporting plane 25, and the picture part of the film is located above the sunken groove 26, i.e. the picture part of the film is in a suspended state, and then the picture part of the film is prevented from being damaged, when the film moves to the appropriate position, the feeding mechanism 4 stops working, at this time, the direct current push-pull electromagnet is powered on, and then the pressing piece 14 is driven to move, so that the ball 16 falls into the falling hole 15, at this time, the pressing piece 14 is lowered, and the pressing piece 14 presses the left and right sides of the film to keep the position of the film stable, and the light emitted by the first light source 54 can illuminate the picture part of the film after being transmitted through the light transmission area 24, and then the film is convenient to be flipped by the camera.

[0047] In the embodiment, as shown in Figure 3 and Figure 4 The pressing piece 14 is a pressing frame, the middle area of the pressing frame is a light transmission hole 17, preferably, the pressing piece 14 is a rectangular frame, the light transmission hole 17 is a rectangular hole, the light transmission hole 17 is above the light transmission area 24, the bottom of the pressing frame has a protruding part, and a step surface 19 is formed on the pressing frame, the bottom surface of the protruding part is the pressing surface 18, the falling-in hole 15 is opened on the step surface 19, by setting the protruding part, the protruding height of the protruding part can be determined according to the position of the supporting surface 25, the thickness of the film and the position of the upper surface of the base 2, so as to ensure the shortest gap between the pressing surface 18 and the supporting surface 25, and then when the ball 16 falls into the falling-in hole 15 and the bottom of the pressing frame is attached to the upper surface of the base 2, the pressing surface 18 and the supporting surface 25 can clamp the two sides of the film (the part of the film which is not exposed and has the scale hole opened thereon), and the picture part of the film completely falls below the light transmission hole 17.

[0048] In the embodiment, the bottom of the base 2 is provided with a magnet installation cavity, an electromagnet is installed in the magnet installation cavity, and the base 2 is provided with a switch for controlling the power-on or power-off of the electromagnet, when the rephotographing film holder is installed, the rephotographing film holder is placed on the horizontal surface of the iron plate, and then the power-on of the electromagnet is controlled through the switch, in use, the electromagnet is in the power-on state, that is, the base 2 is adsorbed on the iron plate, and the position of the base 2 is fixed, therefore, the whole rephotographing film holder will not move due to the conveying of the film in use, so as to ensure the reliability of the use of the rephotographing film holder.

[0049] In the embodiment, as shown in Figure 9 The feeding mechanism 4 includes a motor 41 and a pressing mechanism, the pressing mechanism includes a first shaft 42 and a second shaft 44, the first shaft 42 and the second shaft 44 are both rotatably installed on the base 2, and the second shaft 44 is above the first shaft 42, the two ends of the first shaft 42 are provided with feeding wheels 43, the two ends of the second shaft 44 are provided with rotatable pressing wheels 45, the pressing wheels 45 are above the corresponding feeding wheels 43, and the gap between the pressing wheels 45 and the feeding wheels 43 matches the thickness of the film, as shown in Figure 7As shown, the base 2 is further provided with a mounting hole 27 corresponding to the feeding wheel 43, the mounting hole 27 extends upward and forms a notch corresponding to the convex rib, the top of the feeding wheel 43 is located in the notch, and the top of the feeding wheel 43 is flush with the supporting plane 25. The motor 41 is in power transmission connection with a first shaft 42, and the two first shafts 42 are in driving connection. In the embodiment, the first shaft 42 and the second shaft 44 are connected through a belt transmission. In order to facilitate the installation of the belt, a groove for placing the belt is formed on the base 2. A belt wheel 46 is arranged on the first shaft 42 away from the motor 41. Further, the motor 41 is connected with the first shaft 42 through a gear transmission. Therefore, when the motor 41 works, the two first shafts 42 rotate synchronously, thereby driving the film on the feeding wheel 43 to forwardly convey, realizing the feeding of the film. In the embodiment, the pressing wheel 45 and the feeding wheel 43 press the two sides of the film, so as not to damage the frame of the film. In the embodiment, in order to facilitate the installation of the second shaft 44, a protruding mounting block 7821 is arranged on the top of the base 2, and the second shaft 44 is mounted on the mounting block 7821. In order to ensure the spacing between the two pressing wheels 45, a tension spring 47 is sleeved on the second shaft 44, thereby avoiding the two pressing wheels 45 from approaching each other, ensuring the spacing between the two pressing wheels 45, and further ensuring the reliability of the film conveying.

[0050] In the embodiment, as shown in the figure, Figure 2 the base 2 is further provided with a detection module 5, as shown in the figure, Figure 8As shown, the detection module 5 is located behind the light transmission area 24, the detection module 5 comprises a second light source 51, the second light source 51 is installed on the control panel 6, and the second light source 51 is located behind the first light source 54, a cavity 52 corresponding to the first light source 54 is formed on the base 2, a light transmission slot 23 is formed on the top of the cavity 52, a PCB board 53 is installed on the top of the base 2, a CCD image sensor is installed on the PCB board 53, and the CCD image sensor is located above the light transmission slot 23. Further, a light-reflecting film is arranged on the inner wall of the cavity 52, and a soft light plate is installed on the top of the cavity 52. The second light source 51 emits light, the light source enters the light transmission slot 23 through the soft light plate, and then the light source transmits out of the light transmission slot 23 and shines on the film, and then is detected by the CCD image sensor. Therefore, the CCD image sensor can accurately and quickly identify each picture and the interval between pictures, ensure that the camera accurately aligns each picture when flipping, and does not miss the picture or take two pictures together. The accurate identification of the film position facilitates the splicing of the wide film; for example, the size of the picture taken by the XPAN camera is 65mm*24mm, the starting point and the ending point of the picture are identified by the CCD image sensor, a 1:1 magnification macro lens is used for the full-frame digital camera, a 36mm*24mm picture can be taken, a picture is taken from the starting point, the film will move to the ending point through machine calculation, and another picture is taken by the digital camera. In this way, there are two pictures with a length of 36mm+36mm, and the middle part is overlapped by 7mm. Therefore, splicing of the two pictures can be easily realized in the computer. Even if a medium format camera is used for shooting, multiple splicing can be realized. The CCD image sensor is prior art, and the CCD image sensor has become a core component of a camera-recorder integrated machine, a printer, a fax machine, a camera, a digital camera, a scanner, a digital video camera, and a multimedia system. Therefore, counting by the CCD image sensor and accurate identification of the film position are prior art, and thus the working process and the implementation mode of the detection module 5 will not be described in detail.

[0051] The working process of the embodiment is as follows: first, the front end of the film is pulled from back to front and sequentially passes through the two feed wheels 43, and after the position of the film in the conveying direction is adjusted, the motor 41 works, which drives the feed wheels 43 to rotate, thereby driving the film to move forward. During the movement of the film, the film passes through the detection module 5, and the CCD image sensor accurately and quickly identifies each picture and the interval between pictures, ensuring that the camera accurately aligns each picture when it is flipped, and does not miss the picture or take two pictures together. When the picture enters the light transmission area 24, the camera needs to take a picture of the picture, at this time, the motor 41 stops working, the direct current push-pull electromagnet is energized, and the telescopic shaft 12 drives the pressing frame to move. When the pressing frame moves, the ball 16 is aligned with the drop-in hole 15, and the ball 16 enters the drop-in hole 15. During this process, the pressing frame has a downward stroke in the upward and downward directions, thereby reducing the gap between the pressing plate plane 18 and the supporting plane 25. Finally, the pressing plate plane 18 and the supporting plane 25 clamp the left and right sides of the film, thereby ensuring the fixation of the film position and the reliability of the camera shooting. When the camera shooting is completed, the direct current push-pull electromagnet is de-energized, the telescopic shaft 12 is reset under the action of the reset spring, and the ball 16 exits the drop-in hole 15. Therefore, the top of the ball 16 is on the bottom of the step surface 19 of the pressing frame, thereby lifting the pressing frame, so that the pressing plate plane 18 is separated from the film, thereby avoiding damage to the film. Then the motor 41 works again, thereby driving the film to convey forward, and then the next picture of the film is flipped. Embodiment

[0052] As shown in Figure 10 , a flip film holder mainly suitable for 120 film, specifically, the flip film holder includes an upper cover 1 with a light transmission window, and a film pressing lifting mechanism 3. In the embodiment, as shown in Figures 12-15As shown, the tablet lifting mechanism 3 comprises a base 2, the base 2 has a light transmission area 24, a plurality of blind holes are arranged on the left and right sides of the light transmission area 24, the plurality of blind holes are distributed along the front and back directions, a plurality of balls 16 are arranged in the blind holes, and part of the balls 16 protrude from the blind holes. A telescopic assembly 11 is also arranged on the left and right sides of the light transmission area 24 of the base 2, the telescopic assembly 11 is located outside the blind hole, a pin shaft 13 is arranged on the telescopic shaft 12 of the telescopic assembly 11, the pin shaft 13 is perpendicular to the telescopic shaft 12, and the pin shaft 13 can slide up and down along the telescopic shaft 12, the bottom of the pin shaft 13 is connected with a pressing piece 14, the pressing piece 14 is provided with a falling hole 15 corresponding to the ball 16, when the telescopic shaft 12 is telescoped, the top of the ball 16 can fall into the falling hole 15 or exit from the falling hole 15. Further, the pressing piece 14 comprises upper and lower stacked pressing plates and a light transmission pressing plate 111, the two pressing plates are locked by locking screws, and the left and right ends of the light transmission pressing plate 111 are clamped by the pressing plates. The light transmission pressing plate 111 is located above the light transmission area 24. Specifically, the telescopic assembly 11 is a DC push-pull electromagnet, when the DC push-pull electromagnet is powered on, the telescopic shaft 12 is contracted, at this time, the telescopic shaft 12 drives the pressing piece 14 to move forward and backward, thereby causing the ball 16 to move relative to the pressing plate. In this embodiment, the falling hole 15 is arranged on the lower pressing plate. Further, the DC push-pull electromagnet has only two states, namely, a power-on state and a power-off state. Correspondingly, when the DC push-pull electromagnet is in the power-on state, the ball 16 is aligned with the falling hole 15, at this time, the top of the ball 16 is located in the falling hole 15, at this time, the pressing plate is lowered, thereby driving the light transmission pressing plate 111 to move downward, and the light transmission pressing plate 111 presses the film. In this embodiment, when the telescopic shaft 12 is adsorbed, the ball 16 is just aligned with the falling hole 15, at this time, the light transmission pressing plate 111 and the light transmission supporting plate 112 just clamp the film, so that the position of the film is kept fixed, and the light transmission pressing plate 111 can also flatten the film during the downward movement, thereby ensuring the reliability of the film reprinting. After power-off, the telescopic shaft 12 is reset under the action of the reset spring, at this time, the ball 16 exits from the falling hole 15. Due to the existence of the ball 16, the ball 16 lifts the pressing plate, and the pressing plate can only move upward under the limitation of the pin shaft 13, therefore, after the pressing plate is lifted, the light transmission pressing plate 111 is separated from the film, thereby facilitating the film to be conveyed forward and avoiding the film from being damaged by friction.

[0053] In this embodiment, as shown in the drawings, Figure 10 The upper cover 1 is arranged on the base 2, preferably, the upper cover 1 is detachably connected with the base 2 by locking screws, and the light transmission window of the upper cover 1 is located above the light transmission area 24 of the base 2, as shown in the drawings, Figure 16As shown, the base 2 is provided with a sunken groove 26 along the front and back direction, and the left and right sides of the sunken groove 26 are provided with protruding ribs, the surface of the ribs is a supporting plane 25 for supporting the film, the base 2 is provided with a sunken step, and the sunken step is provided with a light-transmitting supporting plate 112, the light-transmitting supporting plate 112 covers the light-transmitting area 24, and the light-transmitting supporting plate 112 is located below the light-transmitting pressing plate 111, the upper surface of the light-transmitting supporting plate 112 is flush with the supporting plane 25, and during the film conveying process, the film is always supported by the light-transmitting supporting plate 112 and the supporting plane 25, and the upper surface of the light-transmitting supporting plate 112 is flush with the supporting plane 25, so that the film is conveyed in the same plane, thereby ensuring the reliability of the film conveying, and in this embodiment, when the ball 16 exits and falls into the hole 15, the gap between the light-transmitting pressing plate 111 and the light-transmitting supporting plate 112 is greater than the thickness of the film, thereby facilitating the conveying of the film, and the inner cavity of the base 2 is further provided with a control panel 6, the control panel 6 is provided with a first light source 54, and the light of the first light source 54 is transmitted through the light-transmitting area 24, and the film is clamped in use, the first light source 54 is in an always-on state, and always provides light, thereby making the light-transmitting area 24 always transmit light.

[0054] In this embodiment, as shown in Figure 11 The base 2 is further provided with a feeding mechanism 4 for feeding the film forward, and in this embodiment, the feeding mechanism 4 is the same as the feeding mechanism of the first embodiment, and specifically, as shown in Figure 9 The feeding mechanism 4 includes a motor 41 and a film pressing mechanism, the film pressing mechanism includes a first shaft 42 and a second shaft 44, the first shaft 42 and the second shaft 44 are both rotatably installed on the base 2, and the second shaft 44 is located above the first shaft 42, the both ends of the first shaft 42 are provided with feeding wheels 43, the both ends of the second shaft 44 are provided with rotatable film pressing wheels 45, the film pressing wheels 45 are located above the corresponding feeding wheels 43, and the gap between the film pressing wheels 45 and the feeding wheels 43 matches the thickness of the film, as shown in Figure 7As shown, the base 2 is also provided with a mounting hole 27 corresponding to the feeding wheel 43, the mounting hole 27 extends upward and forms a notch corresponding to the convex edge, part of the top of the feeding wheel 43 is located in the notch, and the top of the feeding wheel 43 is flush with the support plane 25, the motor 41 is in power transmission connection with a first shaft 42, and the two first shafts 42 are in transmission connection, in this embodiment, the first shaft 42 and the second shaft 44 are connected through a belt transmission, in order to facilitate the installation of the belt, a groove for placing the belt is formed on the base 2, further, the motor 41 is connected with the first shaft 42 through a gear transmission, therefore, when the motor 41 works, the two first shafts 42 rotate synchronously, thereby driving the film on the feeding wheel 43 to forwardly convey, realizing the feeding of the film, and in this embodiment, the pressing wheel 45 and the feeding wheel 43 press the two sides of the film, therefore, the film frame will not be damaged, and the feeding mechanism 4 is suitable for 120 films, and the distance between the two feeding wheels 43 on the first shaft 42 is matched with the width of the 120 film.

[0055] In this embodiment, as shown in Figure 11 , the base 2 is also provided with a detection module 5, and the detection module 5 in this embodiment is the same as the detection module 5 in the first embodiment in structure and function, therefore, the detection module 5 will not be described again.

[0056] In this embodiment, since the drawing of the 120 film is large, it needs to be photographed multiple times, and then the film is flipped and photographed through the method of connecting the films, therefore, as shown in Figure 1 , the base 2 is also provided with a longitudinal movement mechanism 7 at the bottom, as shown in Figure 17 and Figure 18 , the longitudinal movement mechanism 7 includes a sliding base 71 and a fixed cross beam 74, the sliding base 71 is connected with the bottom of the base 2, the bottom of the sliding base 71 is provided with a plurality of rollers 76, and a mounting groove 72 is formed on the upper surface of the sliding base 71, at least two groups of linear motion pairs 73 distributed longitudinally are installed in the mounting groove 72, the fixed cross beam 74 is transversely arranged on the sliding members of the linear motion pairs 73, a lead screw motion pair 75 is also installed in the mounting groove 72, the lead screw of the lead screw motion pair 75 is in threaded connection with the fixed cross beam 74, in actual use, the fixed cross beam 74 is fixed on a flat plate, further, the two ends of the fixed cross beam 74 are provided with protrusions 78, the bottom of the mounting groove 72 is provided with through holes 77 corresponding to the protrusions 78, the protrusions 78 are located in the corresponding through holes 77, and a magnet installation cavity 79 is formed in the bottom of the protrusions 78, and an electromagnet is installed in the magnet installation cavity 79, a switch for controlling the electrification or power-off of the electromagnet is arranged on the base 2 or the sliding base 71, that is, when the film is placed, the film is placed on the iron plate, and then the electromagnet is electrified, the fixed cross beam 74 is adsorbed on the iron plate, when the position of the film needs to be adjusted, the lead screw motion pair 75 works, thereby driving the sliding base 71 to move longitudinally (left and right), and the base 2 and the upper cover 1 move with the sliding base 71, thereby realizing the adjustment of the position of the film.

[0057] The working process of the embodiment is as follows: the film holder is placed on the iron plate, and the position of the film holder is adjusted, then the switch is turned on, the electromagnet is powered on, and then the electromagnet is adsorbed on the iron plate, and due to the existence of the screw moving pair 75, when the screw moving pair 75 does not work, the slide 71, the base 2 and the upper cover 1 will not move longitudinally, then the front end of the film is pulled from back to front and sequentially passes through the two feed wheels 43, after the position of the film in the conveying direction is adjusted, the motor 41 works, and the motor 41 drives the feed wheel 43 to rotate, thereby driving the film to move forward, in the moving process of the film, the film passes through the detection module 5, and the CCD image sensor accurately and quickly identifies each picture and the interval between the pictures, so that the camera can accurately align each picture when flipping, and the picture or two pictures will not be missed, when the picture enters the light transmission area 24, the camera needs to shoot the picture, at this time, the motor 41 stops working, the DC push-pull electromagnet is powered on, and the telescopic shaft 12 drives the pressing plate to move, when the pressing plate moves, the ball 16 is aligned with the falling hole 15, and the ball 16 enters the falling hole 15, in this process, the pressing plate has a downward stroke in the upward and downward directions, so that the gap between the light transmission pressing plate 111 and the light transmission support plate 112 becomes smaller, and finally the light transmission pressing plate 111 is pressed on the film, so as to fix the position of the film and also flatten the film, thereby ensuring the reliability of the camera shooting, in the shooting process, if multiple shooting and splicing are needed, the screw moving pair 75 works, thereby driving the slide 71 to slide on the iron plate, thereby changing the longitudinal position of the film, realizing multiple shooting, then the screw moving pair 75 is reset, the slide 71 is reset, the camera shoots the picture, then the DC push-pull electromagnet is powered off, the telescopic shaft 12 is reset under the action of the reset spring, thereby making the ball 16 exit the falling hole 15, so that the top of the ball 16 is on the bottom of the pressing plate, thereby lifting the pressing plate, so that the light transmission pressing plate 111 is separated from the film, then the motor 41 works again, thereby driving the film to convey forward, and then the next picture of the film is flipped. Embodiment

[0058] A film holder is provided to improve the applicability of the film holder, that is, the film holder can be applied to the flipping of 120 film and 135 film, other structures of the film holder are the same as those of embodiment two, and the only difference is the feeding mechanism 4, such as Figure 9As shown, the feeding mechanism 4 comprises a motor 41 and a tablet pressing mechanism, the tablet pressing mechanism comprises a first shaft 42 and a second shaft 44, both of which are rotatably installed on the base 2, and the second shaft 44 is above the first shaft 42, the left and right ends and the middle part of the first shaft 42 are provided with feeding wheels 43, the left and right ends of the second shaft 44 are provided with rotatable tablet pressing wheels 45, the tablet pressing wheels 45 are above the corresponding feeding wheels 43, and the gap between the tablet pressing wheels 45 and the feeding wheels 43 matches the thickness of the film, the base 2 is further provided with a mounting hole 27 corresponding to the feeding wheels 43, the mounting hole 27 extends upward and forms a notch corresponding to the convex rib, part of the top of the feeding wheel 43 is in the notch, and the top of the feeding wheel 43 is flush with the supporting plane 25, the motor 41 is in power transmission connection with a first shaft 42, and the two first shafts 42 are in transmission connection, as shown in the figure Figure 19 As shown, the tablet pressing mechanism further comprises a pressing wheel switching mechanism 8, as shown in the figure Figure 20 As shown, the pressing wheel switching mechanism 8 comprises a rotating piece 81, a hanging rack 85 and a lower pressing wheel 83, the lower pressing wheel 83 is rotatably installed on the hanging rack 85, and the lower pressing wheel 83 is above the feeding wheel 43 in the middle of the first shaft 42, the top of the hanging rack 85 passes through the upper cover 1, and the top of the hanging rack 85 is provided with a hook 82, the rotating piece 81 is placed on the upper cover 1, and the rotating piece 81 is provided with a hanging hole 84 and forms a hanging rod, the hook 82 passes through the hanging hole 84 and hangs on the hanging rod, and the width of the hanging rod is inconsistent with the height, when the lower pressing wheel 83 is in the lower stroke, the gap between the lower pressing wheel 83 and the feeding wheel 43 in the middle of the first shaft 42 matches the thickness of the film, when the film is a 120 film, in this embodiment, the height of the hanging rod is greater than the width of the hanging rod, that is, when the rotating piece 81 is placed horizontally, at this time, the hanging rod is in the upper stroke, and the lower pressing wheel 83 is separated from the corresponding feeding wheel 43, and when the film is a 135 film, the rotating piece 81 is in a vertical position, at this time, the hanging rod is in the lower stroke under the action of gravity, the gap between the lower pressing wheel 83 and the feeding wheel 43 in the middle of the first shaft 42 matches the thickness of the film, at this time, the lower pressing wheel 83 and the corresponding feeding wheel 43 clamp the non-exposed part of the film, thereby driving the 135 film to move, and the 120 film is flipped, so that the flipping film clamp can be suitable for flipping of the 120 film and the 135 film.

[0059] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A tablet press lift mechanism characterized by: The base has a light-transmitting area, a plurality of blind holes are arranged on the left and right sides of the light-transmitting area, the blind holes are distributed along the front and back directions, balls are arranged in the blind holes, and part of the balls protrude from the blind holes; a telescopic assembly is arranged on the left and right sides of the light-transmitting area, the telescopic assembly is located outside the blind holes, a pin shaft is arranged on the telescopic shaft of the telescopic assembly, the pin shaft is perpendicular to the telescopic shaft, the pin shaft can slide up and down along the telescopic shaft, a pressing piece is connected to the bottom of the pin shaft, and a falling hole corresponding to the ball is arranged on the pressing piece.

2. A tablet press lift according to claim 1, characterized in that: The telescopic assembly is a direct-current push-pull electromagnet.

3. A tablet press lift according to claim 2, wherein: The pressing piece is a pressing frame, the middle region of the pressing frame is a light-transmitting hole, the light-transmitting hole is located above the light-transmitting area, the bottom of the pressing frame has a convex part, a stepped surface is formed on the pressing frame, the bottom surface of the convex part is a pressing surface, and the falling hole is arranged on the stepped surface.

4. A tablet press lift according to claim 2, wherein: The pressing piece includes upper and lower laminated pressing plates and a light-transmitting pressing plate, the two pressing plates are locked by locking screws, and the left and right ends of the light-transmitting pressing plate are clamped by the pressing plates.

5. A copy film holder, characterized in that: The base has a light-transmitting area, a plurality of blind holes are arranged on the left and right sides of the light-transmitting area, the blind holes are distributed along the front and back directions, balls are arranged in the blind holes, and part of the balls protrude from the blind holes; a telescopic assembly is arranged on the left and right sides of the light-transmitting area, the telescopic assembly is located outside the blind holes, a pin shaft is arranged on the telescopic shaft of the telescopic assembly, the pin shaft is perpendicular to the telescopic shaft, the pin shaft can slide up and down along the telescopic shaft, a pressing piece is connected to the bottom of the pin shaft, and a falling hole corresponding to the ball is arranged on the pressing piece.

6. A film retransfer jacket according to claim 5, wherein: The base has a light-transmitting area, a plurality of blind holes are arranged on the left and right sides of the light-transmitting area, the blind holes are distributed along the front and back directions, balls are arranged in the blind holes, and part of the balls protrude from the blind holes; a telescopic assembly is arranged on the left and right sides of the light-transmitting area, the telescopic assembly is located outside the blind holes, a pin shaft is arranged on the telescopic shaft of the telescopic assembly, the pin shaft is perpendicular to the telescopic shaft, the pin shaft can slide up and down along the telescopic shaft, a pressing piece is connected to the bottom of the pin shaft, and a falling hole corresponding to the ball is arranged on the pressing piece.

7. A copy film holder, characterized in that: The upper cover with a light-transmitting window is further provided with the tablet lifting mechanism of claim 4, the upper cover is installed on the base, and the light-transmitting window of the upper cover is located above the light-transmitting area of the base; the base is provided with a sunken groove in the front-rear direction, and the left and right sides of the sunken groove are provided with protruding ribs; the surface of the ribs is a supporting plane for supporting the film; the base is provided with a sunken step, and the sunken step is provided with a light-transmitting supporting plate; the light-transmitting supporting plate covers the light-transmitting area and is located below the light-transmitting pressing plate; the upper surface of the light-transmitting supporting plate is flush with the supporting plane; when the ball is withdrawn from the falling hole, the gap between the light-transmitting pressing plate and the light-transmitting supporting plate is greater than the thickness of the film; the base is further provided with a control panel in the inner cavity, the control panel is provided with a first light source, and the light of the first light source is transmitted through the light-transmitting area; and the base is further provided with a feeding mechanism for feeding the film forward.

8. A film retransfer jacket according to claim 7, wherein: The base is further provided with a longitudinal movement mechanism at the bottom, the longitudinal movement mechanism comprises a sliding seat and a fixed cross beam, the sliding seat is connected with the bottom of the base, the bottom of the sliding seat is provided with a plurality of rollers, the upper surface of the sliding seat is provided with a mounting groove, at least two groups of linear movement pairs distributed longitudinally are mounted in the mounting groove, the fixed cross beam is transversely arranged on the sliding members of the linear movement pairs, and a screw rod movement pair is further mounted in the mounting groove.

9. A film retransfer jacket according to claim 8, wherein: The two ends of the fixed cross beam are provided with protruding blocks, the bottom of the mounting groove is provided with through holes corresponding to the protruding blocks, the protruding blocks are located in the corresponding through holes, the bottom of the protruding blocks is provided with a magnet mounting cavity, and an electromagnet is mounted in the magnet mounting cavity.

10. A film retransfer jacket according to any one of claims 5 to 9, wherein: The feeding mechanism comprises a motor and a tablet pressing mechanism, the tablet pressing mechanism comprises a first shaft and a second shaft, the first shaft and the second shaft are rotatably installed on the base, the second shaft is located above the first shaft, the two ends of the first shaft are provided with feeding wheels, the two ends of the second shaft are provided with rotatable tablet pressing wheels, the tablet pressing wheels are located above the corresponding feeding wheels, the gap between the tablet pressing wheels and the feeding wheels matches the thickness of the film, the base is further provided with a mounting hole corresponding to the feeding wheel, the mounting hole extends upward and forms a notch corresponding to the protruding ribs, part of the top of the feeding wheel is located in the notch, and the top of the feeding wheel is flush with the supporting plane, the motor is in power transmission connection with the first shaft or the second shaft, and the first shaft and the second shaft are in transmission connection.

11. A film retransfer jacket according to claim 10, wherein: The base is further provided with a detection module, the detection module is located behind the light transmission area, the detection module comprises a second light source, the second light source is installed on the control panel, and the second light source is located behind the first light source, a cavity corresponding to the first light source is formed in the base, a light transmission slot is formed in the top of the cavity, a PCB is installed on the top of the base, a CCD image sensor is installed on the PCB, and the CCD image sensor is located above the light transmission slot.

12. A film retransfer jacket according to any one of claims 7 to 9, wherein: The feeding mechanism comprises a motor and a tablet pressing mechanism, the tablet pressing mechanism comprises a first shaft and a second shaft, the first shaft and the second shaft are rotatably installed on the base, the second shaft is located above the first shaft, feeding wheels are installed on the left and right ends and the middle part of the first shaft, rotatable tablet pressing wheels are installed on the left and right ends of the second shaft, the tablet pressing wheels are located above the corresponding feeding wheels, the gap between the tablet pressing wheels and the feeding wheels matches the thickness of the film, mounting holes corresponding to the feeding wheels are formed in the base, the mounting holes extend upward and form notches corresponding to the convex edges, the top of part of the feeding wheels is located in the notches, and the top of the feeding wheels is flush with the supporting plane, the motor is in power transmission connection with the first shaft or the second shaft, and the first shaft and the second shaft are in transmission connection, the tablet pressing mechanism further comprises a pressing wheel switching mechanism, the pressing wheel switching mechanism comprises a rotating piece, a hanging rack and a lower pressing wheel, the lower pressing wheel is rotatably installed on the hanging rack, the lower pressing wheel is located above the feeding wheel in the middle part of the first shaft, the top of the hanging rack penetrates through the upper cover, the top of the hanging rack is provided with a hook, the rotating piece is placed on the upper cover, a hanging hole is formed in the rotating piece and forms a hanging rod, the hook penetrates through the hanging hole and is hung on the hanging rod, and the width of the hanging rod is inconsistent with the height, when the lower pressing wheel is in the lower stroke, the gap between the lower pressing wheel and the feeding wheel in the middle part of the first shaft matches the thickness of the film.

13. A film rehydrating cassette according to claim 12, wherein: The base is further provided with a detection module, the detection module is located behind the light transmission area, the detection module comprises a second light source, the second light source is installed on the control panel, and the second light source is located behind the first light source, a cavity corresponding to the first light source is formed in the base, a light transmission slot is formed in the top of the cavity, a PCB is installed on the top of the base, a CCD image sensor is installed on the PCB, and the CCD image sensor is located above the light transmission slot.

Images