CN2300952Y - Document surface moving mechanism of optical scanner - Google Patents

Abstract

The manuscript surface moving mechanism of optical scanner is equipped with a driving motor for providing driving force, a linear driving unit for converting rotary motion into linear motion, a sliding combination for driving manuscript surface bearing glass and an adjusting seat for adjusting and maintaining flatness of bearing glass over scanning window of optical scanner. The utility model discloses original manuscript face moving mechanism can be applied to the optical scanning machine that the original manuscript face removed to can carry out the plane degree adjustment simultaneously, in order to improve the truth of scanner scanning.

Description

Document surface moving mechanism of optical scanner

The utility model relates to a moving mechanism for an original manuscript surface of an optical scanning machine.

In order to make the scanning can truly reflect the original document, the optical scanner with the original surface moving, in addition to the manufacturing tolerance of each component and the assembly margin during assembly should be minimized, the flatness of the original surface bearing glass directly above the scanning window is particularly important.

At present, the known optical scanners that move the original surface do not have a device that facilitates the flatness adjustment of the original surface carrying glass. Therefore, after the optical scanner with poor flatness leaves the factory, it is difficult to adjust the flatness. True image quality cannot be maintained within the scan area.

In order to solve the above problems, the only way to reduce the manufacturing error of each component is to strictly control the tolerance and matching margin during manufacturing. Taking such measures will inevitably increase the manufacturing cost of the optical scanning machine.

The purpose of this utility model is to provide a moving mechanism for the original surface of an optical scanning machine, which can be applied to an optical scanning machine for moving the original surface, and has the function of adjusting the flatness, and can conveniently adjust the scanning window of the optical scanning machine The upper original surface bears the flatness of the glass, thereby improving the authenticity of scanning by the optical scanner.

The purpose of the utility model is achieved in the following way: in a manuscript surface moving mechanism of an optical scanning machine, there is a driving motor, a linear driving unit, a sliding assembly and an adjusting seat. The linear drive unit is composed of a lead screw and a slider, and the lead screw is connected with the output shaft of the drive motor through a transmission member. The sliding combination includes a fixing piece and a sliding piece sliding along the fixing piece. The fixing piece is fixedly arranged on the optical scanning machine, and one side of the bearing glass on the original surface is fixed on the sliding piece; the adjustment seat is vertically fixed on the side of the optical scanning machine. The back plate is composed of an upper adjustment block and a lower adjustment block respectively installed on the back plate above and below the other side of the bearing glass on the original surface. The adjustment seat is arranged on one side of the scanning window of the optical scanning machine, and is combined with the slide block to respectively stand on both sides of the scanning window.

The original manuscript surface moving device of the utility model has a driving motor as the driving power, and the rotational motion of the motor is converted into a linear motion through the lead screw connected with the output shaft of the driving motor, and the slider drives the sliding part in the sliding combination to move along the fixed part. Sliding, thereby driving the bearing glass on the original surface, so that the device can be applied to an optical scanning machine with a moving original surface. The other side of the supporting glass on the original surface can be adjusted by the height of the upper and lower adjustment blocks installed above and below to ensure the flatness of the scanning window of the scanner, thereby improving the authenticity of scanning.

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is the three-dimensional section schematic diagram of the manuscript surface moving mechanism of the optical scanning machine of the present invention

Fig. 2 is the three-dimensional exploded view of the preferred embodiment of the utility model

Fig. 3 is a three-dimensional exploded view of another embodiment of the utility model

In the figure, 1. Shell 2. Carrying glass 3. Original surface moving mechanism 31. Driving motor

32. Linear drive unit 33. Sliding combination 35. Adjusting seat 311. Output shaft

312. Belt 321. Lead screw 322. Slider 323. Pulley 331. Chute

332. Slider 333. Slider arm 339. Slider 349. Slider 351. Backplate

352. Upper adjustment block 353. Lower adjustment block

The document surface moving mechanism 3 of the optical scanning machine of the present invention shown in Fig. 1 is arranged in the casing 1 of this optical scanning machine, in order to drive the original document surface carrying glass 2 on this optical scanning machine, and the scanning on this optical scanning machine The window is located in the left side of the housing 1 in FIG. 1 and is parallel to the left side.

The manuscript surface moving mechanism 3 of the present invention includes a drive motor 31 , a linear drive unit 32 , a sliding assembly 33 and an adjustment seat 35 .

In the three-dimensional exploded view of the preferred embodiment of the utility model shown in Fig. 2, the driving motor 31 is arranged in the housing 1 of the optical scanning machine, in order to provide the driving required by the original document surface moving mechanism 3 of the utility model force, and has an output shaft 311 to output the rotational motion of the driving motor 31; and in the preferred embodiment of the present utility model, the output shaft 311 is a pulley shaft.

The linear drive unit 32 is arranged in the casing 1 of the optical scanning machine to convert the rotational motion output by the drive motor 31 into a linear motion parallel to the side of the optical scanning machine and the scanning window perpendicular to the side, and convert the linear motion motion output.

In the preferred embodiment of the present utility model, the linear drive unit 32 is a lead screw combination, and the lead screw combination includes a lead screw 321 and a slider 322; connected to convert the rotational motion of the input driving motor 31 into the linear motion of the slider 322 , and output from the slider 322 to the sliding assembly 33 .

The transmission member is a pulley 323 disposed on the lead screw 321 , and the pulley 323 is connected to the output shaft 311 of the driving motor 31 through the belt 312 .

The sliding assembly 33 is arranged in parallel on one side of the optical scanning machine, and it includes a sliding piece and a fixing piece. The linear motion of the linear drive unit 32 is input by a connecting piece, so that the sliding piece slides linearly along the fixing piece.

In the preferred embodiment of the present utility model, the fixing member of sliding assembly 33 is an elongated chute 31, and the sliding member is an elongated sliding bar 332 sliding in the chute 331, on the sliding bar 332 with a suitable A fixing element (for example, a screw) is fixed on one side of the supporting glass 2 on the original document surface.

Another embodiment of the utility model sliding assembly 33 (as shown in Figure 3 ) fixed part is an elongated slide rail 339, the sliding part is a long sliding seat 349 sliding on the slide rail 339, on the slide seat 349 It is fixed on one side of the original surface carrying glass 2 with appropriate fixing elements (such as screws).

The adjustment seat 35 is arranged on the optical scanning machine on one side of the scanning window, and is separated from the sliding assembly 33 on both sides of the scanning window to support and adjust the flatness of the original bearing glass 2 above the scanning window.

In a preferred embodiment of the present invention, the adjustment base 35 includes a back plate 351 , an upper adjustment block 352 , and a lower adjustment block 353 .

The back plate 351 is vertically fixed on the side of the optical scanning machine, and protrudes from the plane of the supporting glass 2 on the original surface, and at least one vertical groove is arranged in the middle.

The upper adjustment block 352 is arranged on the back plate 351, and its position is higher than the bearing glass 2 on the original surface, and is a block with at least two rollers of the same height; the rollers are arranged on the side facing the sliding assembly 33 1. Its mandrel is fixed on the block body of the upper adjustment block 352, and the bottom edge surface of the roller is parallel to the plane of the original document surface bearing glass 2. The connection between the upper adjustment block 352 and the back plate 351 is completed with a set of fixing screws arranged behind the upper adjustment block 352 and passing through the vertical groove of the back plate 351, and the upper adjustment block 352 is connected by this set of fixing screws. height adjustment.

The lower adjustment block 353 is an adjustable position block, which is also arranged on the back plate 351, and its position is lower than the bearing glass 2 on the original surface, and has at least two rollers of equal height; 33, its mandrel is fixed on the block of the lower adjustment block 353, and the upper edge surface of the roller is parallel to the bottom plane of the original surface bearing glass 2, and its end surface is located at the same level as the end surface of the upper adjustment block 352 roller. on the vertical plane. The connection between the lower adjustment block 353 and the back plate 351 is a set of fixing screws passing through the vertical groove of the back plate 351 , and the height of the lower adjustment block 353 can be adjusted through the set of fixing screws.

When an optical scanner with a moving document surface is used, the document surface bearing glass 2 should be parallel to the scanning window, especially directly above the scanning window. The flatness of the original manuscript surface bearing glass 2 affects the precision of the optical scanner, and the original manuscript surface moving mechanism 3 of the utility model fixes one side of the original manuscript surface bearing glass 2 and the elongated fixture of the sliding assembly 33, in this Under the rigidity and precision machining of the elongated fixture, the straightness of the straight line is guaranteed, and the other side of the bearing glass 2 is placed between the roller group of the upper adjustment block 352 and the lower adjustment block 353 of the adjustment seat 35, Because it achieves at least two points of support, and the upper adjustment block 352 and the lower adjustment block 353 of the adjustment seat 35 are movable blocks that can adjust the height, so the adjustability of the manuscript surface moving mechanism 3 of the present invention is not only in the manufacturing process The flatness directly above the scanning window can be ensured, and the error of the optical scanning machine after use can be corrected.

Claims (6)

1, a kind of original copy face travel mechanism of optical scanning device is characterized in that: have a CD-ROM drive motor (31), a linear drives unit (32), slide a combination (33) and an adjustment seat (35); Linear drives unit (32) is made up of lead screw (321) and slide block (322), and lead screw (321) is connected with the output shaft (311) of CD-ROM drive motor (31) by driving member; The combination (33) of sliding comprises a fixture and a sliding part along the fixture slip, and fixture is fixedly set on the optical scanning device, and a side of original copy face bearing glass (2) is fixed on the sliding part; Adjust seat (35) by the backboard that is vertically fixed on the optical scanning device side (351) and be installed on respectively on the backboard on another side of original copy face bearing glass (2) and under upper setting block (352), downward modulation monoblock (353) form, adjust seat (35) and be arranged on the side of optical scanning device scanning window, and make up the both sides that (33) stand on scanning window respectively with slide block.

2, original copy face according to claim 1 travel mechanism, it is characterized in that: the output shaft (311) of CD-ROM drive motor (31) is a Pulley shaft.

3, original copy face according to claim 1 travel mechanism is characterized in that: driving member is one to be arranged at the belt pulley (323) on the lead screw (321), and belt pulley (323) is connected with the output shaft (311) of CD-ROM drive motor (31) by belt (312).

4, original copy face according to claim 1 travel mechanism, it is characterized in that: the fixture of the combination (33) of sliding is a microscler chute (331), sliding part is a microscler slide bar (332) that slides in chute (331), and a side of original copy face bearing glass (2) is fixed on the slide bar (332).

5, original copy face according to claim 1 travel mechanism, it is characterized in that: the fixture of the combination (33) of sliding is a microscler slide rail (339), sliding part is a microscler slide (349) in the last slip of slide rail (339), and a side of original copy face bearing glass (2) is fixed on the slide (349).

6, original copy face according to claim 1 travel mechanism, it is characterized in that: backboard (351) protrudes in original copy face bearing glass plane, has at least one vertical channel in the centre of backboard (351); Upper setting block (352) is the block of the adjustable position of a roller with at least two equal heights, roller is arranged on towards a side of the combination (33) of sliding, the axle of roller is fixed on the block of upper setting block (352), and the bottom margin of roller is parallel to the plane of original copy face bearing glass, upper setting block (352) is connected by one group of gib screw through the backboard vertical channel with backboard (351), and carries out the height control of upper setting block by this group screw; Downward modulation monoblock (353) is a position adjustable block with roller of at least two equal heights, roller is arranged on towards a side of the combination (33) of sliding, the axle of this roller is fixed on the block of downward modulation monoblock (353), and the top edge of roller is parallel to the plane of original copy face bearing glass, the end face of its end face and upper setting block (352) roller is positioned on the same vertical plane, downward modulation monoblock (353) is connected by one group of gib screw through the backboard vertical channel with backboard (351), and reduces the height control of monoblock by this group screw.

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