CN219727612U - Driving device for driving doctor blade - Google Patents

Abstract

The utility model relates to the technical field of paper stock processing, in particular to a driving device for driving a doctor blade, which has the technical scheme that: including support body, translation mechanism, slewing mechanism and installed part, the support body is used for installing on the coating printing machine, and translation mechanism installs in the support body, and slewing mechanism installs in translation mechanism, and translation mechanism is used for driving slewing mechanism and removes in the horizontal direction, and the installed part is installed in slewing mechanism, and slewing mechanism is used for driving the installed part rotation, and the installed part is used for being connected with the doctor blade. The beneficial effects of the utility model are as follows: has the function of driving the doctor blade to rotate up and down and move horizontally.

Description

Driving device for driving doctor blade

Technical Field

The utility model relates to the technical field of paper stock processing, in particular to a driving device for driving a doctor blade.

Background

In the processing of paper stock, it is generally necessary to apply pigments, inks, etc. to the surface of the paper stock to change the color of the paper stock or to print text, images. Currently, coating presses are commonly used to paint paper stock. Since the coating is in many cases uneven, it is often necessary to scrape off the excess ink from the paper after coating. Thus, current coating printers typically include a doctor blade with a blade edge that is positioned adjacent to a feed roll that transports the paper stock for scraping off excess ink from the paper stock. Meanwhile, the coating printer is further provided with a moving device for translating the doctor blade, and the moving device drives the doctor blade to move away from or towards the direction of the material roller, so that whether the doctor blade is in contact with the paper material or not is controlled.

In view of the above, the inventors have found that when a doctor blade is used in a conventional coating press, after the doctor blade scrapes off excessive ink on paper, the excessive ink is easily accumulated on the doctor blade, thereby affecting the use of the doctor blade.

Disclosure of Invention

The utility model provides a driving device for driving a doctor blade, which has the function of driving the doctor blade to rotate up and down and move horizontally.

The driving device comprises a frame body, a translation mechanism, a rotating mechanism and a mounting piece, wherein the frame body is used for being mounted on the coating printer, the translation mechanism is mounted on the frame body, the rotating mechanism is mounted on the translation mechanism, the translation mechanism is used for driving the rotating mechanism to move in the horizontal direction, the mounting piece is mounted on the rotating mechanism, the rotating mechanism is used for driving the mounting piece to rotate, and the mounting piece is used for being connected with the doctor blade.

Through adopting above-mentioned technical scheme, translation mechanism and slewing mechanism's setting has realized can drive the function of doctor blade rotation and horizontal migration, and translation mechanism makes the doctor blade can control horizontal migration in the in-process of scraping ink to shake unnecessary ink of piling up on the doctor blade off, reduce unnecessary ink and pile up the condition on the doctor blade.

Preferably, the translation mechanism comprises a translation rod and a power assembly, two ends of the translation rod are inserted into the frame body and are connected with the frame body in a sliding mode, the rotating mechanism is installed on the translation rod, the power assembly is installed on the frame body, and the power assembly is used for driving the translation rod to reciprocate along the length direction of the translation rod.

Through adopting above-mentioned scheme, power component drives translation pole along translation pole self length direction reciprocating motion to drive slewing mechanism and installed part horizontal reciprocating motion, can shake unnecessary ink off on the doctor blade.

Preferably, the power assembly comprises an eccentric wheel and a motor, the motor is fixedly arranged on the frame body, an output shaft of the motor is fixedly connected with the eccentric wheel, the output shaft of the motor is used for driving the eccentric wheel to rotate, a first connecting piece is fixedly sleeved at one end of the translation rod, a containing groove is formed in the side face of the first connecting piece, the eccentric wheel is arranged in the containing groove, and the eccentric wheel is in butt joint with the groove wall of the containing groove.

Through adopting above-mentioned technical scheme, use the eccentric wheel to realize the reciprocating motion of translation pole, because the eccentric wheel is arranged in the accommodation groove of first connecting piece, consequently the eccentric wheel has still played spacing effect to the reciprocating motion of first connecting piece and translation pole.

Preferably, the frame body is further provided with a guide rod, two ends of the guide rod are slidably connected with the frame body in the length direction of the guide rod, two ends of the guide rod are fixedly connected with two ends of the translation rod respectively, and the guide rod is located below the translation rod and parallel to the translation rod.

Through adopting above-mentioned scheme, guide bar and translation pole fixed connection not only play the guide effect to the reciprocating motion of translation pole, have played the restriction effect to the rotation of translation pole simultaneously, restriction translation pole's rotation. Therefore, the reciprocating motion of the translation rod is more stable under the drive of the power assembly.

Preferably, the rotating mechanism comprises a rotating shaft, a swinging arm and an air cylinder, wherein the second connecting piece is rotatably arranged at two ends of the rotating shaft, the second connecting piece is fixedly connected with the translation rod, the mounting piece is fixedly connected with the rotating shaft, a cross rod is fixedly arranged on the mounting piece, the cross rod is mutually parallel to the rotating shaft, one end of the air cylinder, deviating from the output shaft, is rotatably connected with the cross rod, the output shaft of the air cylinder is rotatably connected with one end of the swinging arm, and the other end of the swinging arm is fixedly connected with the rotating shaft.

Through adopting above-mentioned scheme, the output shaft of cylinder drives the swing arm and swings round the axis of rotation, because swing arm and axis of rotation fixed connection, consequently the axis of rotation rotates under the drive of swing arm to drive the installed part and rotate, drive the doctor blade by the installed part again and rotate, thereby realize the rotation of doctor blade.

Preferably, a telescopic assembly is arranged between the mounting piece and the rotating shaft, and the telescopic assembly is used for adjusting the distance between the mounting piece and the rotating shaft.

Through adopting above-mentioned scheme, the setting of flexible subassembly makes the mounting and the distance accessible flexible subassembly of axis of rotation adjust, and when the doctor blade was far away from the axis of rotation, flexible subassembly can stretch out the mounting for the mounting can be connected with the doctor blade all the time, has improved drive arrangement's suitability.

Preferably, the telescopic assembly comprises a sleeve and a screw rod, one end of the sleeve is penetrated and provided with a sliding groove, one end of the mounting piece is inserted in the sliding groove and is connected with the sliding groove in a sliding manner, one end of the mounting piece is in butt joint with the groove wall of the sliding groove, the screw rod is arranged in the sliding groove, one end of the screw rod penetrates through one end of the sleeve, which is far away from the opening, and is in rotary connection with the sleeve, the other end of the screw rod is in threaded connection with one end of the mounting piece in the sliding groove, and a fixing piece for fixing the mounting piece is further arranged on the side wall of the sleeve, and the cross rod is fixedly mounted on the sleeve.

Through adopting above-mentioned scheme, owing to installed part and the cell wall looks butt in groove that slides, consequently rotate the lead screw and can make the installed part slide in the groove that slides to realize adjusting the distance of installed part and axis of rotation, improve drive arrangement's suitability.

Preferably, the side wall of the sleeve is provided with a threaded hole in a penetrating manner, the fixing piece comprises a threaded rod, the threaded rod is in threaded connection with the threaded hole, and one end of the threaded rod, which is arranged in the threaded hole, is used for being abutted to the mounting piece.

Through adopting above-mentioned scheme, when threaded rod and installed part offset tightly, the installed part is fixed in the groove that slides to realize the fixed of installed part, simple structure, convenient operation.

In summary, the beneficial technical effects of the utility model are as follows:

1. the translation mechanism and the rotating mechanism are arranged to realize the functions of driving the doctor blade to rotate and horizontally move, and the translation mechanism enables the doctor blade to horizontally move left and right in the ink scraping process, so that redundant ink accumulated on the doctor blade is shaken off, and the situation that redundant ink is accumulated on the doctor blade is reduced.

2. The setting of flexible subassembly makes the mounting and the distance accessible flexible subassembly of axis of rotation adjust, and when the doctor blade was far away from the axis of rotation, flexible subassembly can stretch out the mounting for the mounting can be connected with the doctor blade all the time, has improved drive arrangement's suitability.

Drawings

Fig. 1 is a schematic diagram of a driving apparatus according to the present utility model.

Fig. 2 is a schematic view of a part of the structure of the driving device in the present utility model.

Fig. 3 is a schematic view of the power assembly of the present utility model.

Fig. 4 is an enlarged partial schematic view of fig. 2 a.

Fig. 5 is a schematic cross-sectional view of a sleeve according to the present utility model.

Reference numerals illustrate:

01. a doctor blade; 02. a material roller; 1. a frame body; 2. a mounting member; 3. a translation rod; 4. an eccentric wheel; 5. a motor; 6. a first connector; 7. a receiving groove; 8. a guide rod; 9. a second connector; 10. a rotating shaft; 11. swing arms; 12. a cylinder; 13. a cross bar; 14. a sleeve; 15. a screw rod; 16. a slip groove; 17. a hand wheel; 18. and a fixing piece.

Detailed Description

The utility model is described in further detail below in connection with fig. 1-5.

The utility model discloses a driving device for driving a doctor blade, which is arranged in a coating printer and used for driving the doctor blade 01 in the coating printer to move. Referring to fig. 1 and 2, the driving device includes a frame 1, a translation mechanism, a rotation mechanism, and a mounting member 2, where the frame 1 is used for being mounted on a coating press, the translation mechanism is mounted on the frame 1, the rotation mechanism is mounted on the translation mechanism, and the mounting member 2 is mounted on the rotation mechanism. The translation mechanism is used for driving the rotation mechanism to move in the horizontal direction, so that the mounting piece 2 is driven to move in the horizontal direction. The rotating mechanism is used for driving the mounting piece 2 to rotate, and the mounting piece 2 is used for being connected with the doctor blade 01, so that the doctor blade 01 is driven to move. The translation mechanism enables the doctor blade 01 to horizontally move left and right in the ink scraping process, so that redundant ink accumulated on the doctor blade 01 is shaken off, the situation that the redundant ink is accumulated on the doctor blade 01 is reduced, and the doctor blade 01 is convenient to use.

Specifically, referring to fig. 2, the translation mechanism includes a translation rod 3 and a power component, two ends of the translation rod 3 penetrate through the frame body 1 and are connected with the frame body 1 in a sliding manner, the length direction of the translation rod 3 is parallel to the material roller 02 on the coating printer, and the translation rod 3 can slide in the length direction of the translation rod. The rotating mechanism is arranged on the translation rod 3, so that the translation rod 3 can drive the rotating mechanism to slide along the length direction of the translation rod 3, the rotating mechanism drives the mounting piece 2 to slide, and the mounting piece 2 drives the doctor blade 01 to move along the length direction of the material roller 02. The power component is arranged on the frame body 1 and is used for driving the translation rod 3 to reciprocate along the length direction of the translation rod 3.

In this embodiment, referring to fig. 3, the power assembly includes an eccentric wheel 4 and a motor 5, the motor 5 is fixedly mounted on the frame 1, and an output shaft of the motor 5 is fixedly connected with the eccentric wheel 4, so that the output shaft of the motor 5 drives the eccentric wheel 4 to rotate. One end of the translation rod 3 is fixedly sleeved with a first connecting piece 6, and the length direction of the first connecting piece 6 is the same as the length direction of the translation rod 3. The side of the first connecting piece 6 is provided with a containing groove 7, and the eccentric wheel 4 is arranged in the containing groove 7. The diameter of the eccentric wheel 4 is the same as the width of the accommodating groove 7 and the eccentric wheel 4 is abutted against the groove wall of the accommodating groove 7. When the eccentric wheel 4 rotates, the eccentric wheel 4 is abutted with the groove wall of the accommodating groove 7, so that the eccentric wheel 4 can drive the first connecting piece 6 to reciprocate in the length direction of the translation rod 3, and therefore the translation rod 3 is driven to reciprocate, and meanwhile, the eccentric wheel 4 also plays a limiting role on the reciprocating motion of the first connecting piece 6 and the translation rod 3. In other embodiments, the translational rod 3 can be driven to reciprocate in the length direction by using a crank connecting rod or the like.

In order to further limit the moving direction of the translation rod 3, referring back to fig. 2, a guide rod 8 is further provided on the frame body 1, and two ends of the guide rod 8 are slidably connected to the frame body 1 in the length direction of the guide rod 8. The second connecting pieces 9 are arranged between the two ends of the guide rod 8 and the two ends of the translation rod 3, the second connecting pieces 9 are fixedly connected with one end of the guide rod 8, meanwhile, the second connecting pieces 9 are fixedly connected with one end of the translation rod 3, and the guide rod 8 is located below the translation rod 3 and parallel to the translation rod 3. Because guide bar 8 and translation bar 3's tip all runs through in support body 1, consequently support body 1 and guide bar 8 and translation bar 3's lateral wall butt, simultaneously because translation bar 3 and guide bar 8 pass through second connecting piece 9 fixed connection, consequently guide bar 8's setting has further limited translation bar 3's direction of movement for translation bar 3 only can remove along translation bar 3's length direction, and guide bar 8 has still restricted translation bar 3's rotation simultaneously.

Referring to fig. 2 and 4, the rotation mechanism includes a rotation shaft 10, a swing arm 11, and a plurality of cylinders 12, and two ends of the rotation shaft 10 are rotatably connected with the second connecting piece 9, so that the rotation shaft 10 is mounted on the translation rod 3, and the translation rod 3 drives the rotation shaft 10 to reciprocate when reciprocating. The mounting piece 2 is fixedly connected with the rotating shaft 10, the cross rod 13 is fixedly arranged on the mounting piece 2, the cross rod 13 is parallel to the rotating shaft 10, and the rotating shaft 10 is parallel to the translation rod 3. One end of the air cylinder 12, which is away from the output shaft, is rotationally connected with the cross rod 13, and the output shaft of the air cylinder 12 is rotationally connected with one end of the swing arm 11. The plurality of cylinders 12 are uniformly distributed along the length direction of the rotating shaft 10, and in this embodiment, the number of cylinders 12 is three. The other end of the swing arm 11 is fixedly connected with the rotating shaft 10, so that the output shaft of the air cylinder 12 drives the swing arm 11 to swing around the rotating shaft 10, and as the swing arm 11 is fixedly connected with the rotating shaft 10, the swing arm 11 drives the rotating shaft 10 to rotate, so that the installation piece 2 is driven to swing. The doctor blade 01 is rotated by the mounting member 2 so that the blade edge of the doctor blade 01 is closer to the stock roll 02 or further from the stock roll 02.

Due to the interference between the devices, the position of the rotary shaft 10 is far from the position of the doctor blade 01 after the partial coating press is equipped with the driving device. In order to improve the applicability of the driving device, a telescopic assembly is arranged between the mounting piece 2 and the rotating shaft 10, and the telescopic assembly is used for adjusting the distance between the mounting piece 2 and the rotating shaft 10, so that the mounting piece 2 can be fixedly connected with the bottom of the doctor blade 01 all the time.

In this embodiment, referring to fig. 2 and 5, the telescopic assembly includes a sleeve 14 and a screw rod 15, one end of the sleeve 14 is provided with a sliding groove 16 in a penetrating manner, one end of the mounting member 2 is inserted into the sliding groove 16 and is connected with the sliding groove 16 in a sliding manner, and one end of the mounting member 2 is abutted against a groove wall of the sliding groove 16, so that the mounting member 2 can only slide in the sliding groove 16. The screw rod 15 is placed in the sliding groove 16, one end of the screw rod 15 penetrates through one end of the sleeve 14 far away from the opening and is in rotary connection with the sleeve 14, and the other end of the screw rod 15 is in threaded connection with one end of the mounting piece 2 placed in the sliding groove 16. One end of the screw rod 15 penetrating through the sleeve 14 is connected with a hand wheel 17, so that a worker can rotate the screw rod 15 conveniently. Because the mounting piece 2 is abutted with the groove wall of the sliding groove 16, the mounting piece 2 can slide in the sliding groove 16 by rotating the screw rod 15, so that the distance between the mounting piece 2 and the rotating shaft 10 is adjusted, and the applicability of the driving device is improved.

The side wall of the sleeve 14 is also provided with a fixing piece 18 for fixing the mounting piece 2, and the cross bar 13 is fixedly mounted on the sleeve 14. Threaded holes are formed in the side walls of the sleeve 14 in a penetrating manner, and the fixing piece 18 comprises a threaded rod which is in threaded connection with the threaded holes, and one end of the threaded rod, which is arranged in the threaded holes, is used for being abutted against the mounting piece 2. When the mounting piece 2 needs to be fixed, the threaded rod is screwed down, so that the bottom of the threaded rod abuts against the mounting piece 2, and the position of the mounting piece 2 is fixed. When it is desired to move the mounting 2, the threaded rod is unscrewed so that the bottom of the threaded rod is disengaged from the mounting 2.

The implementation principle of the embodiment is as follows:

firstly, the swing arm 11 is driven to swing through the air cylinder 12, the swing arm 11 swings around the rotating shaft 10, and as the swing arm 11 is fixedly connected with the rotating shaft 10, the swing arm 11 drives the rotating shaft 10 to rotate, the rotating shaft 10 drives the mounting piece 2 to swing, and the mounting piece 2 drives the doctor blade 01 to rotate, so that the blade of the doctor blade 01 is closer to the material roller 02 or is far away from the material roller 02. In addition, the eccentric wheel 4 rotates under the drive of the output shaft of the motor 5, so that the eccentric wheel 4 drives the first connecting piece 6 to reciprocate in the length direction of the translation rod 3, and the translation rod 3 is driven to reciprocate. Since the rotating shaft 10 is fixedly connected with the translation rod 3 through the second connecting piece 9, the rotating shaft 10 is driven to synchronously reciprocate when the translation rod 3 reciprocates, the rotating shaft 10 drives the mounting piece 2 to reciprocate, and the mounting piece 2 drives the doctor blade 01 to reciprocate. So that the doctor blade 01 reciprocates along the length direction of the feed roller 02 at the time of wiping to shake off the excessive ink accumulated on the doctor blade 01.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (8)

1. The driving device for driving the doctor blade is arranged on the coating printer and is used for driving the doctor blade (01) on the coating printer to move, and is characterized in that: including support body (1), translation mechanism, rotary mechanism and installed part (2), support body (1) are used for installing on coating press, translation mechanism install in support body (1), rotary mechanism install in translation mechanism, translation mechanism is used for driving rotary mechanism moves in the horizontal direction, installed part (2) install in rotary mechanism, rotary mechanism is used for driving installed part (2) rotate, installed part (2) are used for being connected with doctor blade (01).

2. A driving device for driving a doctor blade according to claim 1, wherein: the translation mechanism comprises a translation rod (3) and a power component, wherein two ends of the translation rod (3) are inserted into the frame body (1) and are connected with the frame body (1) in a sliding mode, the rotating mechanism is installed on the translation rod (3), the power component is installed on the frame body (1), and the power component is used for driving the translation rod (3) to reciprocate along the length direction of the translation rod (3).

3. A driving device for driving a doctor blade according to claim 2, wherein: the power component comprises an eccentric wheel (4) and a motor (5), wherein the motor (5) is fixedly arranged on the frame body (1), an output shaft of the motor (5) is fixedly connected with the eccentric wheel (4), the output shaft of the motor (5) is used for driving the eccentric wheel (4) to rotate, a first connecting piece (6) is fixedly sleeved at one end of the translation rod (3), a containing groove (7) is formed in the side face of the first connecting piece (6), the eccentric wheel (4) is arranged in the containing groove (7), and the eccentric wheel (4) is in butt joint with the groove wall of the containing groove (7).

4. A driving device for driving a doctor blade according to claim 2, wherein: the guide rod (8) is further arranged on the frame body (1), two ends of the guide rod (8) are slidably connected with the frame body (1) in the length direction of the guide rod (8), two ends of the guide rod (8) are fixedly connected with two ends of the translation rod (3) respectively, and the guide rod (8) is located below the translation rod (3) and parallel to the translation rod (3).

5. A driving device for driving a doctor blade according to claim 2, wherein: the rotating mechanism comprises a rotating shaft (10), a swinging arm (11) and an air cylinder (12), wherein the second connecting piece (9) is arranged at the two ends of the rotating shaft (10) in a rotating mode, the second connecting piece (9) is fixedly connected with the translation rod (3), the mounting piece (2) is fixedly connected with the rotating shaft (10), a cross rod (13) is fixedly arranged on the mounting piece (2), the cross rod (13) is parallel to the rotating shaft (10), one end of the air cylinder (12) deviating from an output shaft is connected with the cross rod (13) in a rotating mode, the output shaft of the air cylinder (12) is connected with one end of the swinging arm (11) in a rotating mode, and the other end of the swinging arm (11) is fixedly connected with the rotating shaft (10).

6. A driving device for driving a doctor blade according to claim 5, wherein: a telescopic assembly is arranged between the mounting piece (2) and the rotating shaft (10), and the telescopic assembly is used for adjusting the distance between the mounting piece (2) and the rotating shaft (10).

7. A driving device for driving a doctor blade according to claim 6, wherein: the telescopic assembly comprises a sleeve (14) and a screw rod (15), wherein one end of the sleeve (14) penetrates through a sliding groove (16), one end of a mounting piece (2) is inserted into the sliding groove (16) and is connected with the sliding groove (16) in a sliding mode, one end of the mounting piece (2) is abutted against the groove wall of the sliding groove (16), the screw rod (15) is arranged in the sliding groove (16), one end of the screw rod (15) penetrates through one end, far away from the opening, of the sleeve (14) and is connected with the sleeve (14) in a rotating mode, the other end of the screw rod (15) is connected with one end of the mounting piece (2) in the sliding groove (16) in a threaded mode, a fixing piece (18) used for fixing the mounting piece (2) is further arranged on the side wall of the sleeve (14), and the cross rod (13) is fixedly mounted on the sleeve (14).

8. A driving device for driving a doctor blade according to claim 7, wherein: threaded holes are formed in the side walls of the sleeves (14) in a penetrating mode, the fixing pieces (18) comprise threaded rods, the threaded rods are in threaded connection with the threaded holes, and one ends of the threaded rods, arranged in the threaded holes, are used for being abutted to the mounting pieces (2).