SUMMERY OF THE UTILITY MODEL
In order to solve the existing shortcoming, the embodiment of the utility model provides a pass barrel and hold-up shaft relatively fixed, no slip cap passes barrel simple structure, version roller drive mechanism that the axiality can be adjusted.
The embodiment of the utility model provides a for solving its technical problem and the technical scheme who adopts is:
a printing roller transmission mechanism comprises a first rack and a second rack, wherein a first through hole is formed in the first rack, a second through hole is formed in the second rack, and the central axes of the first through hole and the second through hole are overlapped; a jacking shaft extending to the outside of the first rack is movably mounted in the first through hole, a transmission shaft extending to the outside of the second rack is movably mounted in the second through hole, a coating roller connecting the jacking shaft and the transmission shaft is further arranged between the first rack and the second rack, and one end of the transmission shaft, far away from the coating roller, is further connected with a driving device capable of driving the transmission shaft to rotate; the periphery of the jacking shaft is movably sleeved with a first sleeve, the periphery of the transmission shaft is movably sleeved with a second sleeve, and the first rack and/or the second rack are also movably connected with a bearing part which is positioned below the first sleeve or the second sleeve and can drive the first sleeve or the second sleeve to move left and right; the supporting part is provided with a height adjusting mechanism capable of driving the first sleeve or the second sleeve to lift, and the side surface of the supporting part is provided with a horizontal adjusting mechanism capable of driving the supporting part to horizontally move left and right. The driving device drives the transmission shaft to rotate, and the transmission shaft drives the coating plate roller to move. When the axial direction of the transmission shaft or the jacking shaft is taken as the front-back direction and the relative direction of the bearing part and the first sleeve or the second sleeve is taken as the up-down direction, the bearing part can adjust the relative height of the bearing part and the first sleeve or the second sleeve through the height adjusting mechanism. Meanwhile, the bearing part can adjust the left and right positions in the horizontal direction through the horizontal adjusting mechanism and drive the first sleeve or the second sleeve to move left and right. Therefore, the transmission shaft or the jacking shaft is arranged at the upper position, the lower position, the left position and the right position, so that the coaxiality precision between the transmission shaft and the jacking shaft is adjusted, the defect that the coaxiality precision cannot be adjusted after the traditional transmission cylinder body is installed is overcome, and the first sleeve and/or the second sleeve can be effectively connected with the bearing part more reliably and effectively.
The height adjusting mechanism comprises a push rod which is arranged on the bearing part and is clamped with the bearing part, the push rod is relatively fixed with the first sleeve or the second sleeve, and a jacking screw capable of jacking the push rod is arranged on the lower end face of the bearing part of the push rod. The bearing part is provided with a clamping groove for accommodating the push rod, so that the push rod can go deep into the bearing part, and the depth of the push rod going deep into the supporting seat can be adjusted by adjusting a jacking screw on the lower end face of the push rod. The push rod can be jacked up only by adjusting the lifting of the jacking screw. The area of the bottom surface of the push rod contacted with the puller screw is far larger than that of the puller screw contacted with the push rod. The bearing part can drive the push rod to move through the clamping groove. In addition, the jackscrew also has a fixing effect on the push rod. Therefore, the relative height of the supporting seat and the first sleeve and/or the second sleeve can be adjusted, and the defect that the coaxiality precision cannot be adjusted after the traditional transmission cylinder body is installed is overcome.
The horizontal adjusting mechanism comprises a plurality of second jacking screws arranged on the first rack and/or the second rack, and the plurality of second jacking screws are respectively abutted against the left side surface and the right side surface of the bearing part and can push the bearing part. When the axis direction of the transmission shaft or the jacking shaft is the front-back direction, the second jacking screw can push the bearing part in the left-right direction relative to the first rack or the second rack, and the bearing part after moving is fixed through the second jacking screw on the left side and the second jacking screw on the right side.
The first sleeve and/or the second sleeve are/is also connected with a pushing part for pushing the first sleeve and/or the second sleeve to be close to or far away from the coating roller. The pushing part can be a jacking cylinder connected with the first sleeve, and can also be a motor connected with the second sleeve. The motor can convert the output rotation into front and back linear motion through a ball screw pair. The pushing part can enable the first sleeve to drive the jacking shaft to jack the coating plate roller tightly, or enable the second sleeve to drive the transmission shaft to control the movement of the coating plate roller.
And the first rack and/or the second rack are/is also provided with a box seat, and the pushing part is arranged in the box seat. The box seat can effectively protect the jacking cylinder or the motor and the ball screw pair, and prevent external sand and dust from interfering the connection precision between the motor and the ball screw pair and between the ball screw pair and the second sleeve.
The inside of first sleeve and second sleeve still is provided with the step position, transmission shaft or tight axle in top still is provided with the shaft shoulder with this step position complex, first sleeve and second sleeve can drive transmission shaft or tight axle in top through the cooperation of step position and shaft shoulder and move along its central axis direction. The shaft shoulder is the step position on the shaft. And bearings which are convenient for the rotation of the transmission shaft or the jacking shaft are further arranged in the first sleeve and the second sleeve. When the transmission shaft or the jacking shaft rotates, the rotation cannot be transmitted to the first sleeve or the second sleeve due to the action of the bearing; when the first sleeve or the second sleeve moves along the sliding direction of the sliding block, the step position in the first sleeve or the second sleeve drives the transmission shaft or the puller shaft to move, and the transmission shaft or the puller shaft can be matched with the coating roller.
And a movable connecting mechanism is also arranged between the first sleeve and/or the second sleeve and the bearing part. The movable connecting mechanism comprises a sliding block and a guide rail which are matched with each other, one of the sliding block and the guide rail is arranged on the first sleeve or the second sleeve, and the other one of the sliding block and the guide rail is arranged on the bearing part. The slide block is movably arranged in the guide rail. The traditional matching of the sliding sleeve and the jacking shaft or the transmission shaft is replaced by the matching of the guide rail and the sliding block, so that the friction force borne by the jacking shaft and the transmission shaft is greatly reduced. Because the sliding block or the guide rail is arranged on the supporting seat, the mode that the cylinder holes are arranged on the front wall plate and the rear wall plate of the frame and then the transmission cylinder is sleeved in the transmission cylinder is replaced, and the difficulty in installation and disassembly is greatly reduced.
The embodiment of the utility model provides a beneficial effect is:
the periphery of the transmission shaft and the jacking shaft is sleeved with a first sleeve and a second sleeve, and the first sleeve and/or the second sleeve are connected with the supporting seat through a movable connecting mechanism; the supporting seat can adjust the relative height between the supporting seat and the first sleeve or the second sleeve and also can adjust the left position and the right position of the supporting seat. The coaxiality precision between the jacking shaft and the transmission shaft can be simply adjusted by adjusting the positions of the supporting seat and the sleeve, so that the defect that the coaxiality precision cannot be adjusted after the transmission barrel is installed is overcome.
The guide rail and the sliding block are matched, so that the traditional transmission cylinder body can be omitted, and the sliding sleeve can be omitted. Meanwhile, the loss caused by friction force can be reduced by the matching mode of the guide rail and the sliding block.
Detailed Description
Referring to fig. 1 and 2, 1 is a pushing portion, 21 is a first sleeve, 22 is a second sleeve, 3 is a tightening shaft, 4 is a coating roller, 5 is a transmission shaft, 6 is a frame, 7 is a driving device, 8 is a ball screw pair, 9 is a driving portion, 10 is a box base, 11 is a slider, 12 is a guide rail, 13 is a connecting block, 14 is a push rod, 151 is a first through hole, 152 is a second through hole, and 16 is a supporting portion.
Referring to fig. 1 and fig. 2, the plate roller transmission mechanism disclosed in this embodiment includes a first frame 6 and a second frame 6, the first frame 6 is provided with a first through hole 151, the second frame 6 is provided with a second through hole 152, and central axes of the first through hole 151 and the second through hole 152 are overlapped; the inside of the first through hole 151 is movably provided with a jacking shaft 3 extending to the outside of the first rack 6, the inside of the second through hole 152 is movably provided with a transmission shaft 5 extending to the outside of the second rack 6, a coating roller 4 connecting the jacking shaft 3 and the transmission shaft 5 is also arranged between the first rack 6 and the second rack 6, and one end of the transmission shaft 5 far away from the coating roller 4 is also connected with a driving device 7 capable of driving the transmission shaft to rotate; a first sleeve 21 is movably sleeved on the periphery of the jacking shaft 3, a second sleeve 22 is movably sleeved on the periphery of the transmission shaft 5, and a bearing part 16 for bearing the first sleeve 21 or the second sleeve 22 is also movably connected to the first frame 6 and/or the second frame 6; the supporting part 16 is provided with a height adjusting mechanism for adjusting the lifting of the first sleeve 21 or the second sleeve 22, and the left side surface and/or the right side surface of the supporting part 16 is also provided with a horizontal adjusting mechanism for adjusting the left and right movement of the supporting part 16. The driving device 7 drives the transmission shaft 5 to rotate, and the transmission shaft 5 drives the coating roller 4 to move. When the axial direction of the transmission shaft 5 or the tightening shaft 3 is taken as the front-rear direction and the relative direction between the bearing portion 16 and the first sleeve 21 or the second sleeve 22 is taken as the up-down direction, the relative height between the bearing portion 16 and the first sleeve 21 or the second sleeve 22 can be adjusted by the height adjusting mechanism. Meanwhile, the support part 16 itself can also adjust its horizontal left-right position through the horizontal adjustment mechanism and drive the first sleeve 21 or the second sleeve 22 to move left and right. Therefore, the transmission shaft 5 or the jacking shaft 3 is positioned at the upper position, the lower position, the left position and the right position, so that the coaxiality precision between the transmission shaft 5 and the jacking shaft 3 is adjusted, the defect that the coaxiality precision cannot be adjusted after the traditional transmission cylinder body is assembled is overcome, and the connection between the first sleeve 21 and/or the second sleeve 22 and the bearing part 16 can be more reliable and effective.
A connecting block 13 for connection is arranged between the transmission shaft 5 and the coating roller 4; the tightening shaft 3 is connected to the coating roller 4 through the connecting block 13. The connecting block 13 is fixed at one end of the transmission shaft 5 or the jacking shaft 3 through threads; and one end of the connecting block 13, which is close to the coating roller 4, is provided with a frustum. The frustum enables the connection between the connecting block 13 and the coating roller 4 to be simpler and more convenient, so that the installation and the disassembly are more convenient.
The driving device 7 is a servo motor. The user can change the 4 angular velocities of coating version roller through servo motor and realize vertical chromatography, increases chromatography variety.
The height adjusting mechanism comprises a push rod 14 extending into a bearing part 16, the push rod 14 is fixed relative to a first sleeve 21 or a second sleeve 22, and a jacking screw capable of jacking the push rod 14 is arranged on the lower end face of the push rod 14 of the bearing part 16. The bearing part 16 is provided with a clamping groove for accommodating the push rod 14, so that the push rod 14 can penetrate into the bearing part, meanwhile, the bearing part 16 can drive the push rod 14 to move through the clamping groove when moving, and the depth of the push rod 14 penetrating into the supporting seat can be adjusted by adjusting a jacking screw on the lower end face of the push rod 14. The area of the bottom surface of the push rod 14 in contact with the puller screw is much larger than the area of the puller screw in contact with the push rod 14. The push rod 14 can be jacked up only by adjusting the lifting of the jacking screw. The jack screw also has a fixing effect on the push rod 14. Therefore, the relative height of the supporting seat and the first sleeve 21 or the second sleeve 22 can be adjusted, so that the defect that the coaxiality accuracy cannot be adjusted after the traditional transmission cylinder body is installed is overcome.
Further, the height adjusting mechanism may also include a cylinder capable of pushing the first sleeve 21 or the second sleeve 22.
Further, the height adjusting mechanism can also be a motor, the motor is connected with the connecting pair, and the output rotary motion is converted into linear motion and then is connected with the first sleeve 21 or the second sleeve 22.
The horizontal adjusting mechanism comprises a plurality of second jacking screws arranged on the first frame 6 or the second frame 6, and the plurality of second jacking screws are respectively abutted against the left side surface and the right side surface of the bearing part 16. The support portion 16 may be connected to the first frame 61 or the second frame 62 through a slide groove and a slide table. When the axial direction of the transmission shaft 5 or the tightening shaft 3 is taken as the front-rear direction and the relative direction of the first sleeve 21 or the second sleeve 22 and the bearing part 16 is the up-down direction, the bearing part 16 can move in the left-right direction on the first frame 6 or the second frame 6 through the matching of the sliding groove and the sliding table, and the moved bearing part 16 is fixed through the second tightening screws on the left and right sides of the bearing part.
Further, the horizontal adjustment mechanism may also include a second cylinder capable of pushing the receiver 16.
Further, the horizontal adjusting mechanism may also be a second motor, and the second motor is connected to the connecting pair, and converts the output rotational motion into linear motion, and then is connected to the supporting portion 16.
The first sleeve 21 and/or the second sleeve 22 are also connected with a pushing part 1 for pushing the first sleeve to move back and forth. The pushing part 1 may be a tightening cylinder connected to the first sleeve 21, or may be a third motor connected to the second sleeve 22. The third motor can convert the output rotation into back and forth linear motion through a ball screw pair 8. The pushing unit 1 may be configured to allow the first sleeve 21 to drive the tightening shaft 3 to tighten the coating roller 4, or may allow the second sleeve 22 to drive the transmission shaft 5 to control the movement of the coating roller 4.
The first sleeve 21 is further connected with a pushing part 1, and the push rod 14 is fixed on the outer wall of the first sleeve 21. The pushing part 1 comprises a pushing cylinder, when the pushing cylinder is ventilated to work, the pushing cylinder pushes a push rod 14 on the side surface of the first sleeve 21 to move, the push rod 14 drives the first sleeve 21 to move, and the first sleeve 21 drives the inner tightening shaft 3 to move towards the direction of the coating roller 4, so that the coating roller 4 is tightened. Through the combined action of the pushing cylinder, the first sleeve 21 and the jacking shaft 3, the coating roller 4 is jacked tightly during working, so that the coating roller 4 is prevented from moving randomly during working, and the overall stability is further ensured.
The second sleeve 22 is also connected with a driving part 9, and the push rod 14 is fixed on the outer wall of the second sleeve 22. The driving mechanism can drive the push rod 14 to move, and the push rod 14 can drive the second sleeve 22 and the transmission shaft 5 to move.
The driving part 9 comprises a driving motor, and a ball screw pair 8 for connecting the driving motor and the push rod 14 is arranged between the driving motor and the push rod. After the driving motor is started, the rotation of the driving motor is firstly transmitted to the ball screw pair 8 through belt transmission, and then the ball screw pair 8 can convert the rotation motion transmitted by the driving motor into the motion in the linear direction and transmit the linear motion to the push rod 14 on the side surface of the second sleeve 22, so as to drive the second sleeve 22 to move. After that, the second sleeve 22 transmits the motion to the transmission shaft 5, thereby driving the transmission shaft 5 to move. Through the belt transmission, the ball screw pair 8 and the second sleeve 22, the rotation of the driving motor is transmitted and converted into the linear motion of the transmission shaft 5, so that the effect of driving the transmission shaft 5 to be close to the coating roller 4 is achieved. The ball screw pair 8 can effectively convert the rotary motion transmitted by the driving motor into the linear motion of the balls on the periphery of the screw. Meanwhile, the transmission ratio between the ball and the screw rod is adjusted, the movement speed transmitted by the driving motor can be adjusted, and the effects of speed reduction and buffering are achieved.
The second frame 6 is further provided with a box seat 10, and the pushing part 1 is installed inside the box seat 10. The box base 10 can effectively protect the jacking cylinder or the driving motor and the ball screw pair 8, and prevent external wind, sand and dust from interfering with the connection precision between the motor and the ball screw pair 8 and between the ball screw pair 8 and the second sleeve 22.
The inside of first sleeve 21 and second sleeve 22 still is provided with the step position, transmission shaft 5 or tight axle 3 still is provided with the shaft shoulder with this step position complex, and the cooperation of step position and shaft shoulder can drive transmission shaft 5 or tight axle 3 and move along its central axis direction. The first sleeve 21 and the second sleeve 22 are also internally provided with bearings for facilitating the rotation of the transmission shaft 5 or the tightening shaft 3. The shaft shoulder is the step position on the shaft. When the transmission shaft 5 or the tightening shaft 3 rotates, the rotation will not be transmitted to the first sleeve 21 or the second sleeve 22 due to the bearing; when the first sleeve 21 or the second sleeve 22 moves towards the direction close to the coating plate roller 4, the step position inside the first sleeve 21 or the second sleeve 22 drives the transmission shaft 5 or the puller shaft 3 to move, so that the transmission shaft 5 or the puller shaft 3 can be matched with the coating plate roller 4.
Further, a ball bearing is arranged inside the first sleeve 21 or the second sleeve 22, an inner ring of the ball bearing is relatively fixed with the outer periphery of the transmission shaft 5 or the jacking shaft 3, and a clamping table for fixing the ball bearing is further arranged inside the first sleeve 21 or the second sleeve 22. When the first sleeve 21 or the second sleeve 22 is pushed, the chuck will drive the ball bearing to move, and the ball bearing will drive the transmission shaft 5 or the tightening shaft 3 to move.
A movable connecting mechanism is further arranged between the first sleeve 21 and/or the second sleeve 22 and the supporting part 16.
The movable connecting mechanism comprises a sliding block 11 and a guide rail 12 which are matched with each other, one of the sliding block 11 and the guide rail 12 is arranged on the first sleeve 21 or the second sleeve 22, and the other is arranged on the bearing part 16; the slide block 11 is movably arranged in the guide rail 12. The traditional matching of the sliding sleeve and the jacking shaft 3 or the transmission shaft 5 is replaced by the matching of the guide rail 12 and the sliding block 11, so that the friction force borne by the jacking shaft 3 and the transmission shaft 5 is greatly reduced. Because the mode that the sliding block 11 or the guide rail 12 is arranged on the supporting seat is adopted, the mode that the cylinder holes are arranged on the front wall plate and the rear wall plate of the frame 6 and then the transmission cylinder is sleeved in the cylinder holes is replaced, and the difficulty in installation and disassembly is greatly reduced.
The above is only the preferred embodiment of the present invention, as long as the technical solution of the purpose of the present invention is realized by the substantially same means, all belong to the protection scope of the present invention.