Plate feeding transmission mechanism for plate grinding machine

Abstract

The utility model discloses a board feeding transmission mechanism for a board grinding machine, which relates to the technical field of board grinding machines in the PCB (printed circuit board) industry and comprises a plurality of roller shafts arranged in parallel at intervals, two ends of each roller shaft are respectively arranged on a side board in a penetrating manner, and a through shaft type main transmission shaft for transmitting each roller shaft is arranged on the outer side of one side board. A plurality of first spiral gears are arranged on the through shaft type main transmission shaft at intervals, a second spiral gear is arranged at one end of each roller shaft, and each first spiral gear corresponds to the corresponding second spiral gear up and down and is meshed with the corresponding second spiral gear. The through shaft type main transmission shaft directly drives the roller shaft through the two spiral gears, and the spiral gear transmission has the advantages of being more stable in transmission, low in operation noise, stable in transmission ratio, capable of providing accurate transmission speed and torque transmission and the like. The board feeding device is used for feeding boards of the board grinding machine, the board feeding stability of PCBs can be improved, and noise generated in the PCB transmission process can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of plate grinding machines in the PCB industry, in particular to a plate feeding transmission mechanism for the plate grinding machine. Background Art

[0002] During the processing of PCBs, a conveyor line is required to transport the PCBs. The existing conveyor line generally includes multiple rollers arranged in parallel. Synchronous pulleys or synchronous sprockets are respectively provided at both ends of the multiple rollers. The synchronous pulleys or synchronous sprockets between two adjacent rollers are linked by a synchronous belt or chain. This transmission method will generate relatively loud noise during operation and is not stable enough. Summary of the Invention

[0003] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the present invention is to provide a plate feeding transmission mechanism for a plate grinding machine.

[0004] The purpose of the utility model is achieved through the following technical solution: a plate feeding transmission mechanism for a plate grinding machine, comprising a plurality of roller shafts arranged in parallel and spaced apart, the two ends of each roller shaft being respectively passed through a side plate, the outer side of one of the side plates being provided with a through-type main transmission shaft for transmitting each roller shaft, the through-type main transmission shaft being provided with a plurality of first helical gears spaced apart, one end of each roller shaft being provided with a second helical gear, each first helical gear corresponding to a second helical gear above and below and meshing with each other. The through-type main transmission shaft directly transmits the roller shafts through two helical gears, and the helical gear transmission is smoother and has lower operating noise. The tooth surface of the helical gear is spiral, with a larger tooth surface contact area and smoother meshing characteristics, thereby improving transmission efficiency. The transmission ratio of the helical gear is stable and can provide precise transmission speed and torque transmission. Compared with traditional spur gears, helical gears can reduce noise and vibration and transmit torque more smoothly.

[0005] As an improvement to the plate feeding transmission mechanism of the plate grinding machine of the present invention, a motor for driving the through-axis main transmission shaft to rotate is also provided on the outer side of the side plate, a first transmission sprocket is provided on the output shaft of the motor, and a second transmission sprocket is also provided on the through-axis main transmission shaft, and the second transmission sprocket and the first transmission sprocket are connected by a chain.

[0006] As an improvement to the plate feeding transmission mechanism of the plate grinding machine of the present invention, the through-type main transmission shaft includes multiple main transmission shafts, two adjacent main transmission shafts are connected by a coupling, and the through-type main transmission shaft directly drives the roller shaft through two helical gears.

[0007] As an improvement to the plate feeding transmission mechanism for the plate grinding machine of the present invention, a fixing ring is provided on one side of each of the first helical gears, and the fixing ring is sleeved on the through-axis main transmission shaft and fixed by screws.

[0008] As an improvement to the plate feeding transmission mechanism of the plate grinding machine of the present invention, a plurality of first bearing seats are provided at intervals on the outer side of the side plate, each of the first bearing seats is provided with a first bearing, and the through-axis main transmission shaft is passed through the first bearing.

[0009] As an improvement to the plate feeding transmission mechanism of the plate grinding machine of the present invention, two of the first transmission sprocket and the second transmission sprocket are provided, and the two first transmission sprockets and the two second transmission sprockets are connected by a chain.

[0010] As an improvement to the plate feeding transmission mechanism of the plate grinding machine of the present invention, a second bearing is provided at both ends of each roller shaft, each of the second bearings is mounted on a second bearing seat, and the second bearing seat is fixedly mounted on the side plate.

[0011] As an improvement to the plate feeding transmission mechanism of the plate grinding machine of the present invention, a plurality of mounting holes are arranged at intervals on the two side plates, the two ends of the roller shaft pass through the mounting holes, and the second bearing seat is installed at the position of the mounting holes.

[0012] The beneficial effects of this utility model are as follows: the through-shaft main drive shaft of this utility model directly drives the roller shaft via two helical gears. The helical gear transmission has the advantages of smoother transmission, lower operating noise, stable transmission ratio, and precise transmission speed and torque transmission. This utility model is used for the board feeding of a grinding machine, which can improve the stability of PCB feeding and reduce noise during PCB transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional diagram of the utility model;

[0014] Figure 2 yes Figure 1 A magnified view of point A in the figure;

[0015] The accompanying drawings are marked as follows: 1. Roller shaft, 2. Side plate, 3. Through-shaft main drive shaft, 4. First helical gear, 5. Second helical gear, 6. Motor, 7. First drive sprocket, 8. Second drive sprocket, 9. Chain, 10. Fixed ring, 11. First bearing seat, 12. First bearing, 13. Mounting hole, 31. Main drive shaft, 32. Coupling. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0018] In addition, the descriptions of "first," "second," etc. in this utility model are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features specified as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0019] like Figure 1 and Figure 2 As shown, a plate feeding transmission mechanism for a plate grinding machine includes a plurality of roller shafts 1 arranged in parallel and spaced apart. The two ends of each roller shaft 1 are respectively passed through a side plate 2. The outer side of one of the side plates 2 is provided with a through-type main transmission shaft 3 for transmitting each roller shaft 1. A plurality of first helical gears 4 are spaced apart on the through-type main transmission shaft 3. A second helical gear 5 is provided at one end of each roller shaft 1. Each first helical gear 4 corresponds to a second helical gear 5 in upper and lower correspondence and meshes with each other. The through-type main transmission shaft 3 directly transmits the roller shafts via two helical gears. The helical gear transmission is smoother and has lower operating noise. The tooth surface of the helical gear is spiral, with a larger tooth surface contact area and smoother meshing characteristics, thereby improving transmission efficiency. The helical gear has a stable transmission ratio and can provide precise transmission speed and torque transmission. Compared with traditional spur gears, helical gears can reduce noise and vibration and transmit torque more smoothly.

[0020] Preferably, a motor 6 for driving the through-axis main transmission shaft 3 to rotate is also provided on the outer side of the side panel 2, a first transmission sprocket 7 is provided on the output shaft of the motor 6, and a second transmission sprocket 8 is also provided on the through-axis main transmission shaft 3, and the second transmission sprocket 8 and the first transmission sprocket 7 are connected by a chain 9.

[0021] Preferably, the through-type main transmission shaft 3 includes multiple main transmission shafts 31, and two adjacent main transmission shafts 31 are connected by a coupling 32. The through-type main transmission shaft 3 directly drives the roller shaft 1 through two helical gears. Multiple first helical gears 4 are installed at intervals on each main transmission shaft 31.

[0022] Preferably, a fixing ring 10 is provided on one side of each first helical gear 4 , and the fixing ring 10 is sleeved on the through-type main transmission shaft 3 and fixed by screws.

[0023] Preferably, a plurality of first bearing seats 11 are provided at intervals on the outer side of the side plate 2 , each first bearing seat 11 is provided with a first bearing 12 , and the through-type main transmission shaft 3 is passed through the first bearing 12 .

[0024] Preferably, two first transmission sprockets 7 and two second transmission sprockets 8 are provided, and the two first transmission sprockets 7 and second transmission sprockets 8 are connected by a chain 9 .

[0025] Preferably, both ends of each roller shaft 1 are provided with a second bearing (not shown in the figure), each second bearing is mounted on a second bearing seat (not shown in the figure), and the second bearing seat (not shown in the figure) is fixedly mounted on the side plate 2.

[0026] Preferably, a plurality of mounting holes 13 are arranged at intervals on both side panels 2 , both ends of the roller shaft 1 pass through the mounting holes 13 , and the second bearing seat is installed at the position of the mounting holes 13 .

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and structure of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plate feeding transmission mechanism for a plate grinding machine, comprising a plurality of roller shafts arranged in parallel and spaced apart, wherein both ends of each roller shaft are respectively passed through a side plate, characterized in that: A through-type main transmission shaft for transmitting each of the roller shafts is provided on the outer side of one of the side plates, and a plurality of first helical gears are provided at intervals on the through-type main transmission shaft. A second helical gear is provided at one end of each of the roller shafts, and each of the first helical gears corresponds to a second helical gear up and down and meshes with each other.

2. The plate feeding transmission mechanism for the plate grinding machine according to claim 1, characterized in that: The outer side of the side plate is also provided with a motor for driving the through-axis main transmission shaft to rotate, the output shaft of the motor is provided with a first transmission sprocket, and the through-axis main transmission shaft is also provided with a second transmission sprocket, and the second transmission sprocket and the first transmission sprocket are connected by a chain.

3. The plate feeding transmission mechanism for the plate grinding machine according to claim 1, characterized in that: The through-type main transmission shaft includes multiple main transmission shafts, and two adjacent main transmission shafts are connected via a coupling.

4. The plate feeding transmission mechanism for a plate grinding machine according to claim 1, characterized in that: A fixing ring is provided on one side of each of the first helical gears. The fixing ring is sleeved on the through-type main transmission shaft and fixed by screws.

5. The plate feeding transmission mechanism for a plate grinding machine according to claim 1, characterized in that: A plurality of first bearing seats are provided at intervals on the outer side of the side plate, each of the first bearing seats is provided with a first bearing, and the through-axis main transmission shaft is passed through the first bearings.

6. The plate feeding transmission mechanism for a plate grinding machine according to claim 2, characterized in that: The first transmission sprocket and the second transmission sprocket are both provided in pairs, and the two first transmission sprockets and the two second transmission sprockets are both connected by a chain.

7. The plate feeding transmission mechanism for a plate grinding machine according to claim 1, characterized in that: Both ends of each roller shaft are provided with a second bearing, each of the second bearings is mounted on a second bearing seat, and the second bearing seat is fixedly mounted on the side plate.

8. The plate feeding transmission mechanism for a plate grinding machine according to claim 7, characterized in that: A plurality of mounting holes are arranged at intervals on both side plates, the two ends of the roller shaft pass through the mounting holes, and the second bearing seat is installed at the position of the mounting holes.

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