Transmission device of negative film scanner

Abstract

The utility model discloses a transmission device of a negative film scanner, which comprises a shell, the shell is arranged in the scanner, an installation mechanism is arranged on the shell, and the installation mechanism comprises a rotating mechanism, a positioning rod, a fixed disc, a rotating sleeve, a follow-up mechanism, a follow-up block, a bearing, a threaded rod, a spring and an insertion block. The rotating mechanism is installed on the positioning rod and the shell, the fixed disc is installed on the shell, the rotating sleeve and the fixed disc are coaxially arranged, the follow-up mechanism is installed on the rotating sleeve and the follow-up block, a clamping groove is formed in the follow-up block, and the installation mechanism provides a stable and accurate assembly platform for the transmission device. Through cooperative work of the rotating mechanism, the positioning rod and the shell and the coaxial design of the fixed disc and the rotating sleeve, centering and balancing of the whole transmission system are ensured, it is very important to ensure the scanning quality and repeatability of the negative film scanner, and the flexibility and the response speed of the device are further improved through integration of the follow-up mechanism; and adjustment and maintenance become more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission of a film scanner, and more specifically, to a transmission device of a film scanner. Background Art

[0002] In the prior art, the transmission device of the film scanner is usually driven by a combination of a worm and a gear. This combination can effectively transmit torque and reduce space occupation, and can accurately control the moving speed and position of the film during the scanning process. The worm drive is particularly suitable for application scenarios that require precise positioning, such as film scanners, due to its self-locking function, to ensure the stability and accuracy of the scanning process.

[0003] However, worm and gear transmission systems also have some limitations. Chief among them is the need to position the screw during the transmission process. The screw needs to be supported by bearings in the proper position to maintain its stability and reduce friction. However, after long-term use of film scanners, these bearings are prone to wear and damage due to continuous load and friction. Once the bearing is damaged, the movement of the screw may become unstable, affecting the transmission efficiency and scanning accuracy, and even causing the scanner to malfunction. In addition, the bearing replacement of existing film scanners is not convenient. Replacing the bearing requires disassembling multiple components, which is not only time-consuming and labor-intensive, but also requires the use of specific tools, which reduces the convenience of maintenance and increases the overall maintenance cost of the equipment. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model provides a transmission device for a film scanner to solve the technical problems mentioned in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a transmission device of a film scanner, comprising a shell, which is installed in the scanner, and a mounting mechanism is arranged on the shell, and the mounting mechanism comprises a rotating mechanism, a positioning rod, a fixed disk, a rotating sleeve, a follower mechanism, a follower block, a bearing, a threaded rod, a spring and an insertion block, the rotating mechanism is installed on the positioning rod and the shell, the fixed disk is installed on the shell, the rotating sleeve and the fixed disk are coaxially arranged, the follower mechanism is installed on the rotating sleeve and the follower block, a clamping groove is provided on the follower block, the bearing fits in the clamping groove, a plurality of insertion holes are provided on the fixed disk along the circumference, the threaded rod is threadedly connected to the rotating sleeve, the two ends of the spring are respectively connected to the threaded rod and the insertion block, and the insertion block is clamped in the insertion hole.

[0006] The utility model is further configured that a rounded corner is provided on the lower end surface of the insertion block, and the rounded corner and the insertion block are coaxially arranged. The design of the rounded corner ensures convenient insertion of the insertion block.

[0007] The utility model is further configured that a limit plate and a handle are coaxially arranged on the threaded rod, the limit plate is fitted on the rotating sleeve, and the design of the limit plate ensures the limiting of the threaded rod.

[0008] The utility model is further configured that the follower mechanism includes a slide rod, and a plurality of inclined grooves are respectively opened on both sides of the rotating sleeve, and the slide rod is slidably connected in the inclined grooves. The design of the slide rod ensures the rotation of the follower block.

[0009] The utility model is further configured that a plurality of limit rods are provided on the fixed disk along the circumference, a follower rod is rotatably provided on the limit rod, the follower rod is rotatably connected to the follower block, the rotating sleeve is clamped in the limit rod, and the design of the follower rod ensures the limiting of the follower block.

[0010] The utility model is further configured that each of the follower blocks is respectively provided with a protruding sleeve, which is clamped on the bearing. The design of the protruding sleeve ensures the stability of the bearing clamping.

[0011] The utility model is further configured that the rotating mechanism includes a motor and a worm, the motor is mounted on the housing, a positioning rod is coaxially mounted on the protruding end of the motor, the positioning rod is rotatably connected to the bearing, and the design of the rotating mechanism ensures the convenience of rotation.

[0012] The utility model is further configured that a driving wheel is rotatably provided on the shell, the worm is meshed on the driving wheel, and the driving wheel is meshed on external equipment. The design of the driving wheel ensures the transmission of power.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The mounting mechanism provides a stable and accurate assembly platform for the transmission device. Through the coordinated work of the rotating mechanism, the positioning rod and the housing, the coaxial design of the fixed plate and the rotating sleeve ensures the centering and balance of the entire transmission system, which is crucial to ensure the scanning quality and repeatability of the film scanner. The integration of the follow-up mechanism further improves the flexibility and response speed of the device, making adjustment and maintenance more convenient.

[0015] 2. The follower mechanism can make the replacement and adjustment of key components such as bearings faster and more accurate. The design of the follower block and rotating sleeve allows the entire mechanism to be flexibly adjusted. Through the design of the slide bar and the inclined groove, the follower mechanism not only simplifies the operation process, but also improves the accuracy and efficiency of the operation. Since component replacement is more convenient, maintenance costs are also reduced.

[0016] 3. The advantage of the rotating mechanism is that it provides efficient and precise transmission capabilities. The coordinated use of the motor and the worm not only improves the transmission efficiency, but also ensures the smoothness and precise control of the transmission process; through the engagement of the driving wheel, the rotating mechanism effectively and evenly transmits power to other parts of the film scanner, ensuring the continuity and accuracy of the entire scanning process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of a transmission device of a film scanner in the utility model;

[0018] Figure 2 It is a structural schematic diagram of the installation mechanism in the utility model;

[0019] Figure 3 For the utility model Figure 2 A schematic cross-sectional structure diagram of ;

[0020] Figure 4 It is a structural schematic diagram of the follower block in the utility model;

[0021] Figure 5 It is a structural schematic diagram of the threaded rod in the utility model.

[0022] In the figure: 1. housing; 2. positioning rod; 3. fixed plate; 4. rotating sleeve; 5. follower block; 6. bearing; 7. threaded rod; 8. spring; 9. insertion block; 10. snap-in groove; 11. insertion hole; 12. fillet; 13. limit plate; 14. handle; 15. slide rod; 16. inclined groove; 17. limit rod; 18. follower rod; 19. protruding sleeve; 20. motor; 21. worm; 22. driving wheel. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0025] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0026] See also Figure 1-5A transmission device for a film scanner comprises a housing 1, which is installed in the scanner. A mounting mechanism is arranged on the housing 1, and the mounting mechanism comprises a rotating mechanism, a positioning rod 2, a fixed disk 3, a rotating sleeve 4, a follower mechanism, a follower block 5, a bearing 6, a threaded rod 7, a spring 8 and an insertion block 9. The rotating mechanism is installed on the positioning rod 2 and the housing 1, the fixed disk 3 is installed on the housing 1, the rotating sleeve 4 and the fixed disk 3 are coaxially arranged, the follower mechanism is installed on the rotating sleeve 4 and the follower block 5, a clamping groove 10 is provided on the follower block 5, the bearing 6 fits in the clamping groove 10, a plurality of insertion holes 11 are provided on the fixed disk 3 along the circumference, the threaded rod 7 is threadedly connected to the rotating sleeve 4, and both ends of the spring 8 are respectively connected It is connected to the threaded rod 7 and the insertion block 9, the insertion block 9 is clamped in the insertion hole 11, and a fillet 12 is provided on the lower end surface of the insertion block 9, and the fillet 12 and the insertion block 9 are coaxially arranged. A limit plate 13 and a handle 14 are coaxially arranged on the threaded rod 7, and the limit plate 13 is fitted on the rotating sleeve 4. The follower mechanism includes a slide rod 15, and a plurality of inclined grooves 16 are respectively provided on both sides of the rotating sleeve 4. The slide rod 15 is slidably connected in the inclined groove 16. A plurality of limit rods 17 are provided along the circumference of the fixed plate 3, and a follower rod 18 is rotatably provided on the limit rod 17. The follower rod 18 is rotatably connected to the follower block 5, and the rotating sleeve 4 is clamped in the limit rod 17. A protruding sleeve 19 is respectively provided on each follower block 5, and the protruding sleeve 19 is clamped on the bearing 6.

[0027] In this embodiment, when the corresponding bearing 6 needs to be replaced, the threaded rod 7 is firstly released from the fixation of the rotating sleeve 4, and then the insertion block 9 is pulled out of the insertion hole 11, and then the rotating sleeve 4 can rotate along the limit rod 17. Since the multiple sliding rods 15 can slide along the inclined groove 16, the rotation of the follower block 5 can be driven, and then the multiple protruding sleeves 19 can be driven to rotate along the axis, and then the bearing 6 is released from the clamping groove 10, and then the corresponding bearing 6 is replaced, and the two ends of the follower rod 18 are respectively rotated to connect to the limit rod 17 and the follower block 5, so that the sliding rod 15 on the follower block 5 can slide along the slide groove, and then it is fixed, and then the threaded rod 7 is threadedly connected to the rotating sleeve 4, so that the insertion block 9 is clamped in the corresponding insertion hole 11. Since each rotation will not make the insertion block 9 accurately align with the corresponding insertion hole 11, at this time, the insertion hole 11 that can tighten and fix the rotating disk and is the most adjacent is selected. Since the spring 8 can move in multiple directions, the insertion hole 11 is then inserted into the corresponding insertion hole 11, thereby completing the fixing process.

[0028] See also Figure 1As an implementation method of the rotating mechanism: the rotating mechanism includes a motor 20 and a worm 21, the motor 20 is installed on the housing 1, a positioning rod 2 is coaxially installed at the protruding end of the motor 20, the positioning rod 2 is rotatably connected to the bearing 6, a driving wheel 22 is rotatably provided on the housing 1, the worm 21 is meshed on the driving wheel 22, and the driving wheel 22 is meshed on the external equipment.

[0029] Specifically, when rotation is required, the motor 20 drives the worm 21 to rotate, and then the positioning rod 2 ensures the coaxial positioning of the worm 21, and the engagement of the driving wheel 22 and the worm 21 drives the rotating wheel to rotate, completing the transmission process.

[0030] In summary, when the corresponding bearing 6 needs to be replaced, first the threaded rod 7 is released from the fixation of the rotating sleeve 4, and then the insertion block 9 is pulled out of the insertion hole 11, and then the rotating sleeve 4 can rotate along the limit rod 17. Since multiple sliding rods 15 can slide along the inclined groove 16, the rotation of the follower block 5 can be driven, and then the multiple protruding sleeves 19 can be driven to rotate along the axis, and then the bearing 6 is released from the clamping groove 10, and then the corresponding bearing 6 is replaced, and the two ends of the follower rod 18 are respectively rotated and connected to the limit rod 17 and the follower block 5, so that the sliding rod 15 on the follower block 5 can slide along the slide groove, and then it is fixed, and then the threaded rod 7 is threadedly connected to the rotating sleeve 4, so that the insertion block 9 is clamped in the corresponding insertion hole 11. Since each rotation will not make the insertion block 9 accurately align with the corresponding insertion hole 11, at this time, the insertion hole 11 that can tighten and fix the rotating disk and is the most adjacent is selected. Since the spring 8 can move in multiple directions, the insertion hole 11 is then inserted into the corresponding insertion hole 11, thereby completing the fixing process.

[0031] When rotation is required, the motor 20 drives the worm 21 to rotate, and then the positioning rod 2 ensures the coaxial positioning of the worm 21, and the engagement of the driving wheel 22 and the worm 21 drives the rotating wheel to rotate, completing the transmission process.

[0032] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A transmission device for a film scanner, comprising a housing (1), the housing (1) being installed in the scanner, characterized in that: The housing (1) is provided with a mounting mechanism, which comprises a rotating mechanism, a positioning rod (2), a fixed disk (3), a rotating sleeve (4), a follower mechanism, a follower block (5), a bearing (6), a threaded rod (7), a spring (8) and an insertion block (9). The rotating mechanism is mounted on the positioning rod (2) and the housing (1), the fixed disk (3) is mounted on the housing (1), the rotating sleeve (4) and the fixed disk (3) are coaxially arranged, the follower mechanism is mounted on the rotating sleeve (4) and the follower block (5), a clamping groove (10) is provided on the follower block (5), the bearing (6) is fitted in the clamping groove (10), a plurality of insertion holes (11) are provided on the fixed disk (3) along the circumference, the threaded rod (7) is threadedly connected to the rotating sleeve (4), two ends of the spring (8) are respectively connected to the threaded rod (7) and the insertion block (9), and the insertion block (9) is clamped in the insertion hole (11).

2. The transmission device of a film scanner according to claim 1, characterized in that: A fillet (12) is provided on the lower end surface of the insertion block (9), and the fillet (12) and the insertion block (9) are coaxially arranged.

3. The transmission device of a film scanner according to claim 2, characterized in that: A limiting plate (13) and a handle (14) are coaxially arranged on the threaded rod (7), and the limiting plate (13) is fitted on the rotating sleeve (4).

4. The transmission device of a film scanner according to claim 3, characterized in that: The follower mechanism comprises a slide bar (15), and a plurality of inclined grooves (16) are respectively provided on both sides of the rotating sleeve (4), and the slide bar (15) is slidably connected in the inclined grooves (16).

5. The transmission device of a film scanner according to claim 4, characterized in that: The fixed disk (3) is provided with a plurality of limit rods (17) along the circumference, the limit rods (17) are rotatably provided with follower rods (18), the follower rods (18) are rotatably connected to the follower blocks (5), and the rotating sleeve (4) is clamped in the limit rods (17).

6. The transmission device of a film scanner according to claim 5, characterized in that: Each follower block (5) is provided with a protruding sleeve (19), and the protruding sleeve (19) is clamped on the bearing (6).

7. The transmission device of a film scanner according to claim 1, characterized in that: The rotating mechanism comprises a motor (20) and a worm (21); the motor (20) is mounted on the housing (1); a positioning rod (2) is coaxially mounted on the protruding end of the motor (20); and the positioning rod (2) is rotatably connected to a bearing (6).

8. The transmission device of a film scanner according to claim 7, characterized in that: A driving wheel (22) is rotatably provided on the housing (1), the worm (21) is meshed with the driving wheel (22), and the driving wheel (22) is meshed with external equipment.

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