Acceleration transmission mechanism capable of adapting to PCBs of different sizes

Abstract

The utility model relates to an acceleration transmission mechanism capable of adapting to PCBs of different sizes, which comprises a support, a driving roller and a driven roller are respectively provided with a spacing adjusting mechanism, support plates are fixed on the front side of a sliding rail, a speed adjusting motor is fixed on the inner end face of one support plate, and a driving roller and a driven roller are respectively provided with a spacing adjusting mechanism. The output end of the speed regulating motor is connected with the second belt transmission assembly, and the output end of the second belt transmission assembly is connected with the driving rolling shaft. According to the acceleration transmission mechanism capable of adapting to the PCBs of different sizes, before the device is used, a first belt transmission assembly operates to drive two first lead screws to rotate, two sliding blocks on the same first lead screw are close to or far away from each other, the distance between a driving rolling shaft and a driven rolling shaft can be conveniently adjusted according to the thickness of the PCBs, a limiting plate plays a role in limiting the PCBs, and therefore the thickness of the PCBs can be adjusted conveniently. When the second lead screws are held and rotated by hands, the two limiting plates on the same second lead screw get close to or away from each other, and the distance between the left limiting plate and the right limiting plate can be conveniently adjusted according to the size of the PCB.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB circuit board production, in particular to an acceleration transmission mechanism which can adapt to PCB circuit boards of different sizes. Background Art

[0002] PCB, the Chinese name for printed circuit board, is also called printed circuit board or printed circuit board. It is an important electronic component, a support for electronic components, and a provider of electrical connections for electronic components. After the PCB board is printed with a QR code, there is a phenomenon of false positives when scanning the code. The reason is that there are many small holes on the PCB board. When the sensor is working, light cannot pass through the holes to get feedback signals, resulting in false positives in code verification. Therefore, a mechanism that can accelerate movement is developed to solve this problem.

[0003] The positions of components on the existing acceleration transmission mechanism are generally fixed, and it is difficult to adjust the positions of corresponding components according to the thickness and width of the PCB board. It is not suitable for PCB boards of different sizes. When transmitting PCB boards of inappropriate sizes, the PCB boards are prone to shaking and the transmission process is not stable enough. In view of the above problems, it is necessary to improve the existing equipment. Utility Model Content

[0004] The purpose of the utility model is to provide an acceleration transmission mechanism that can adapt to PCB circuit boards of different sizes, so as to solve the problems proposed in the above background technology that the positions of components on the existing acceleration transmission mechanism are generally fixed, it is difficult to adjust the positions of corresponding components according to the thickness and width of the PCB board, it is not suitable for PCB boards of different sizes, and when transmitting PCB boards of unsuitable sizes, the PCB board is easy to shake, and the transmission process is not stable enough.

[0005] The utility model provides an acceleration transmission mechanism that can adapt to PCB circuit boards of different sizes, including a bracket, on which an optical fiber alignment fixing groove is opened, slide rails are symmetrically fixed on both sides of the front end surface of the bracket, and sliders are symmetrically slidably connected on both sides of the front end surface of the slide rail, wherein an active roller is rotatably connected between two of the sliders, and a passive roller is rotatably connected between the other two sliders.

[0006] The active roller and the passive roller are both provided with a spacing adjustment mechanism, a support plate is fixed on the front side of the slide rail, a speed regulating motor is fixed on the inner end surface of one of the support plates, the output end of the speed regulating motor is connected to the second belt transmission assembly, and the output end of the second belt transmission assembly is connected to the active roller.

[0007] Preferably, a motor is fixed to the top of one of the slide rails, and the bottom of the motor is connected to the first belt transmission assembly, first screw rods are symmetrically fixed on both sides of the lower end surface of the first belt transmission assembly, and sliders are threadedly connected to the outer sides of the first screw rods.

[0008] Preferably, one end of the active roller and one end of the passive roller are both fixed with a first bevel gear, the bottom of the active roller and the top of the passive roller are both rotatably connected to a second bevel gear, and the second bevel gear is meshingly connected to the first bevel gear, a square sleeve is fixed to the top of the second bevel gear on the active roller, a square column is fixed to the bottom of the second bevel gear on the passive roller, and the square column is slidably connected in the square sleeve, and the square column is inserted in the square sleeve to form a telescopic structure.

[0009] Preferably, the spacing adjustment mechanism includes a second screw rod, and the second screw rod is rotatably connected in the active roller and the passive roller. The active roller and the passive roller are both provided with slideways, and a limit plate is slidably connected in the slideway. The limit plate is symmetrically threadedly connected to both ends of the second screw rod.

[0010] Preferably, a knob is fixed to one end of the second screw rod.

[0011] Preferably, a fastener is threadedly connected to the knob.

[0012] The technical effects that can be obtained by the technical means of the utility model are:

[0013] 1. The acceleration transmission mechanism can adapt to PCB circuit boards of different sizes and can achieve the purpose of acceleration. The device is powered by a speed regulating motor. The speed regulating motor transmits power to the active roller through the second belt transmission component. The first bevel gear, the second bevel gear, the square sleeve and the square column are used to drive the passive roller to rotate, so as to achieve the purpose of accelerating the flow speed of the PCB circuit board. As long as the PCB circuit board reaches the position of the active roller, the PCB acceleration can be achieved by controlling the rotation of the speed regulating motor.

[0014] 2. The acceleration transmission mechanism that can adapt to PCB circuit boards of different sizes can achieve the purpose of adapting to PCB circuit boards of different sizes. Before using the device, the first belt transmission assembly drives the two first screw rods to rotate, and the two sliders on the same first screw rod approach or move away from each other, which is convenient for adjusting the distance between the active roller and the passive roller according to the thickness of the PCB board. The limit plate plays a role of limiting the PCB board. When the second screw rod is rotated by hand, the two limit plates on the same second screw rod approach or move away from each other, which is convenient for adjusting the distance between the left and right limit plates according to the size of the PCB board. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional appearance structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the three-dimensional cross-sectional structure of the utility model;

[0017] Figure 3It is a schematic diagram of the connection structure of the support, optical fiber alignment fixing groove, slide rail, motor, first belt transmission assembly, first screw rod and slider of the utility model.

[0018] In the figure: 1. bracket; 2. optical fiber alignment fixing groove; 3. slide rail; 4. motor; 5. first belt transmission assembly; 6. first screw rod; 7. slider; 8. active roller; 9. passive roller; 10. first bevel gear; 11. second bevel gear; 12. square sleeve; 13. square column; 14. spacing adjustment mechanism; 1401. second screw rod; 1402. slideway; 1403. limit plate; 1404. knob; 1405. fastener; 15. support plate; 16. speed regulating motor; 17. second belt transmission assembly. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example 1

[0021] The preferred embodiment of the acceleration transmission mechanism provided by the utility model that can adapt to PCB circuit boards of different sizes is as follows: Figure 1 to Figure 2 As shown, it includes a bracket 1, on which a fiber optic alignment fixing groove 2 is opened, slide rails 3 are symmetrically fixed on both sides of the front end surface of the bracket 1, and sliders 7 are symmetrically slidably connected on both sides of the front end surface of the slide rails 3, wherein an active roller 8 is rotatably connected between two sliders 7, and a passive roller 9 is rotatably connected between the other two sliders 7.

[0022] A spacing adjustment mechanism 14 is provided on both the active roller 8 and the passive roller 9. A support plate 15 is fixed to the front side of the slide rail 3. A speed regulating motor 16 is fixed to the inner end surface of one of the support plates 15. The output end of the speed regulating motor 16 is connected to the second belt transmission assembly 17, and the output end of the second belt transmission assembly 17 is connected to the active roller 8.

[0023] In this embodiment, a motor 4 is fixed to the top of one of the slide rails 3, and the bottom of the motor 4 is connected to the first belt transmission assembly 5. First screw rods 6 are symmetrically fixed on both sides of the lower end surface of the first belt transmission assembly 5, and sliders 7 are threadedly connected to the outer sides of the first screw rods 6. The first belt transmission assembly 5 can be operated under the action of the motor 4, thereby driving the two first screw rods 6 to rotate. The slider 7 can slide up and down under the limiting action of the slide rail 3 and the first screw rod 6. The upper and lower sliders 7 are close to or away from each other, which is convenient and flexible to adjust the spacing between the active roller 8 and the passive roller 9.

[0024] Furthermore, a first bevel gear 10 is fixed to one end of the active roller 8 and one end of the passive roller 9, and a second bevel gear 11 is rotatably connected to the bottom of the active roller 8 and the top of the passive roller 9, and the second bevel gear 11 is meshingly connected to the first bevel gear 10. A square sleeve 12 is fixed to the top of the second bevel gear 11 on the active roller 8, and a square column 13 is fixed to the bottom of the second bevel gear 11 on the passive roller 9, and the square column 13 is slidably connected in the square sleeve 12, and the square column 13 is inserted into the square sleeve 12 to form a telescopic structure. When the active roller 8 rotates, the square sleeve 12 can rotate under the driving action of the corresponding first bevel gear 10 and the second bevel gear 11, thereby driving the square column 13 to rotate, and the passive roller 9 can rotate under the driving action of the corresponding first bevel gear 10 and the second bevel gear 11, and the active roller 8 and the passive roller 9 turn in opposite directions, which is convenient for automatic transmission of PCB circuit boards.

[0025] Example 2

[0026] On the basis of Example 1, the preferred embodiment of the acceleration transmission mechanism provided by the utility model that can adapt to PCB circuit boards of different sizes is as follows: Figures 2 to 3 As shown, the spacing adjustment mechanism 14 includes a second screw rod 1401, and the second screw rod 1401 is rotatably connected in the active roller 8 and the passive roller 9. A slideway 1402 is provided on the active roller 8 and the passive roller 9, and a limit plate 1403 is slidably connected in the slideway 1402. The limit plate 1403 is symmetrically threadedly connected to both ends of the second screw rod 1401. Before using the device, the second screw rod 1401 can be driven to rotate by manually rotating the knob 1404. At this time, the limit plate 1403 can slide under the limiting action of the second screw rod 1401 and the slideway 1402, so as to facilitate the adjustment of the spacing between the left and right limit plates 1403 so as to be suitable for PCB circuit boards of different sizes.

[0027] In this embodiment, a knob 1404 is fixed to one end of the second screw rod 1401 . When the knob 1404 is manually rotated, the second screw rod 1401 rotates accordingly, so as to facilitate adjustment of the distance between the left and right limit plates 1403 .

[0028] Furthermore, a fastener 1405 is threadedly connected to the knob 1404. After adjusting the distance between the two limit plates 1403 on the active roller 8 and the distance between the two limit plates 1403 on the passive roller 9, the fastener 1405 can be tightened to fix the knob 1404, so that the second screw rod 1401 and the limit plate 1403 can be fixed.

[0029] When in use, first the first belt transmission assembly 5 is operated, the two first screw rods 6 rotate, the sliders 7 on the two slide rails 3 move synchronously, and the upper and lower sliders 7 approach or move away from each other, so as to adjust the spacing between the active roller 8 and the passive roller 9, then the knob 1404 is held and rotated to rotate the second screw rod 1401, and the left and right limit plates 1403 approach or move away from each other, so as to adjust the spacing between the two limit plates 1403 on the active roller 8 and the spacing between the two limit plates 1403 on the passive roller 9, and the fastener 1405 can be tightened to fix the knob 1404, and after the PCB circuit board passes through the active roller 8 and the passive roller 9 and the optical fiber alignment fixing groove 2, the power of the speed regulating motor 16 is transmitted to the active roller 8 through the second belt transmission assembly 17, and the active roller 8 rotates to drive the corresponding first bevel gear 10, the second bevel gear 11 and the square sleeve 12 to rotate, and the passive roller 9 rotates under the driving action of the corresponding first bevel gear 10, the second bevel gear 11 and the square column 13, so as to accelerate the flow speed of the PCB circuit board, and the whole work is completed.

[0030] In summary, the acceleration transmission mechanism that can adapt to PCB circuit boards of different sizes achieves the purpose of acceleration and adaptability to PCB circuit boards of different sizes, and meets people's usage needs.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An acceleration transmission mechanism that can adapt to PCB circuit boards of different sizes, comprising a bracket (1), Features: The bracket (1) is provided with an optical fiber alignment fixing groove (2), and slide rails (3) are symmetrically fixed on both sides of the front end surface of the bracket (1), and sliders (7) are symmetrically slidably connected on both sides of the front end surface of the slide rail (3), wherein an active roller (8) is rotatably connected between two of the sliders (7), and a passive roller (9) is rotatably connected between the other two sliders (7); The active roller (8) and the passive roller (9) are both provided with a spacing adjustment mechanism (14); a support plate (15) is fixed on the front side of the slide rail (3); a speed regulating motor (16) is fixed on the inner end surface of one of the support plates (15); the output end of the speed regulating motor (16) is connected to a second belt transmission component (17); and the output end of the second belt transmission component (17) is connected to the active roller (8).

2. The accelerating transmission mechanism as claimed in claim 1, which can adapt to PCB circuit boards of different sizes. Features: A motor (4) is fixed on the top of one of the slide rails (3), and the bottom of the motor (4) is connected to a first belt transmission assembly (5). First screw rods (6) are symmetrically fixed on both sides of the lower end surface of the first belt transmission assembly (5), and sliders (7) are threadedly connected to the outer sides of the first screw rods (6).

3. The accelerating transmission mechanism as claimed in claim 1 that can adapt to PCB circuit boards of different sizes, Features: A first bevel gear (10) is fixed to one end of the active roller (8) and one end of the passive roller (9); a second bevel gear (11) is rotatably connected to the bottom of the active roller (8) and the top of the passive roller (9); the second bevel gear (11) is meshingly connected to the first bevel gear (10); a square sleeve (12) is fixed to the top of the second bevel gear (11) on the active roller (8); a square column (13) is fixed to the bottom of the second bevel gear (11) on the passive roller (9); the square column (13) is slidably connected to the square sleeve (12); the square column (13) is inserted into the square sleeve (12) to form a telescopic structure.

4. The accelerating transmission mechanism as claimed in claim 1 that can adapt to PCB circuit boards of different sizes, Features: The spacing adjustment mechanism (14) comprises a second screw rod (1401), and the second screw rod (1401) is rotatably connected in the active roller (8) and the passive roller (9), the active roller (8) and the passive roller (9) are both provided with a slideway (1402), and a limit plate (1403) is slidably connected in the slideway (1402), and the limit plate (1403) is symmetrically threadedly connected to both ends of the second screw rod (1401).

5. The accelerating transmission mechanism as claimed in claim 4 that can adapt to PCB circuit boards of different sizes, Features: A knob (1404) is fixed to one end of the second screw rod (1401).

6. The accelerating transmission mechanism as claimed in claim 5, which can adapt to PCB circuit boards of different sizes. Features: The knob (1404) is threadedly connected with a fastener (1405).

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