CN210312649U

CN210312649U - Six-color offset press paper feeding mechanism

Info

Publication number: CN210312649U
Application number: CN201921135198.9U
Authority: CN
Inventors: 华保家
Original assignee: Wuxi Wenjiao Print Service Co ltd
Current assignee: Wuxi Wenjiao Print Service Co ltd
Priority date: 2019-07-18
Filing date: 2019-07-18
Publication date: 2020-04-14
Anticipated expiration: 2029-07-18

Abstract

The utility model relates to the technical field of offset printing, in particular to a six-color offset press paper feeding mechanism, which comprises a paper feeding platform plate, wherein a conveyor belt for conveying paper is laid on the upper surface of the paper feeding platform plate, the conveyor belt is arranged along the length direction of the paper feeding platform plate, the lower surface of the paper feeding platform plate is provided with an electric cylinder, a slide rail and two belt pulleys, the two belt pulleys are connected through a belt, the slide rail is matched with two slide blocks in a sliding way, the moving directions of the slide blocks, the slide seat and the belt are all arranged along the width direction of the paper feeding platform plate, each slide block is fixed with a long plate, and the two long plates are respectively fixed on the belts at the two; every long board all sets up one row of first rubber gyro wheel along the length direction of platform board of form advancing on the surface towards platform board of form advancing, and two rows of first rubber gyro wheels are about conveyer belt symmetry. The utility model discloses utilize two rows of changeable rubber gyro wheels of distance to press from both sides paper, when the paper width changes, can reach the effect of rectifying throughout.

Description

Six-color offset press paper feeding mechanism

Technical Field

The utility model belongs to the technical field of the offset printing technique and specifically relates to a six look offset press paper feeding mechanism is related to.

Background

The paper feeding teeth of the existing offset press reciprocate along the open slots of the panel, and the paper is fed into the offset press one by one for offset printing, but the paper feeding teeth are exposed out of the panel to a certain height, and the height of the paper feeding teeth is unchanged in the reciprocating process; when the paper is returned after the paper feeding action is finished, the part of the paper feeding tooth higher than the panel can impact printed matters such as paper or PVC cards, and the printed matters are damaged or dirty, so that the product quality is influenced. In order to keep the printed image and text consistent with the axis of paper and not generate the phenomenon of printing skew, the prior art means needs to repeatedly adjust the inclination of the PS plate on the roller, and the rubber roller needs to be scrubbed again after each adjustment, which wastes time and materials, so that a paper feeding mechanism capable of rectifying the deviation of the paper with different widths is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a six-color offset press paper feeding mechanism can rectify the paper of different width.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: a six-color offset press paper feeding mechanism comprises a paper feeding platform plate, wherein a conveyor belt for conveying paper is laid on the upper surface of the paper feeding platform plate, the conveyor belt is arranged along the length direction of the paper feeding platform plate, an electric cylinder, a sliding rail and two belt pulleys are arranged on the lower surface of the paper feeding platform plate, the two belt pulleys are connected through a belt, two sliding blocks are arranged on the sliding rail in a sliding fit mode, the moving directions of the sliding blocks, a sliding seat and the belt are all arranged along the width direction of the paper feeding platform plate, a long plate is fixed on each sliding block, and the two long plates are respectively fixed on the belts on the two sides of the belt pulleys; a row of first rubber rollers is arranged on the surface of each long plate facing the paper feeding platform plate along the length direction of the paper feeding platform plate, and the two rows of first rubber rollers are symmetrical about the conveyor belt; a plurality of straight long through holes are formed in the paper feeding platform plate along the width direction of the paper feeding platform plate, and the first rubber roller extends to the upper portion of the paper feeding platform plate through the straight long through holes.

Through adopting above-mentioned technical scheme, when the sliding seat on the electric cylinder drove one of them long slab, the long slab drove the belt motion, and the belt makes two long slabs relative or back of the body motion to make two rows of first rubber gyro wheels on two long slabs can contact with the paper both sides limit of different width all the time, thereby reach the effect of rectifying a deviation to different width papers.

Preferably, the lower surface of the paper feeding platform plate is provided with a waist-shaped groove and a convex block, a first bearing is movably arranged in the waist-shaped groove, the diameter of the first bearing is matched with the width of the waist-shaped groove, a wheel shaft is arranged in the first bearing, the belt pulley is coaxially fixed on the wheel shaft, a screw is screwed on the convex block, and the screw props against the first bearing in the direction away from the other belt pulley.

Through adopting above-mentioned technical scheme, utilize the screw to support first bearing, can make the belt tensioning.

Preferably, a plurality of round holes are formed in the paper feeding platform plate along the length direction of the paper feeding platform plate, the round holes are covered by the conveyor belt, and the round holes are connected with the negative pressure fan through air pipes on the lower surface of the paper feeding platform plate.

Through adopting above-mentioned technical scheme, inhale in round hole department, make the paper adsorb on the platform board of form advancing.

Preferably, a plurality of air holes are formed in the conveying belt along the length direction of the paper feeding platform plate, and the air holes are communicated with the round holes.

Through adopting above-mentioned technical scheme, the gas pocket makes the paper can adsorb on the conveyer belt to make the paper along with the conveyer belt motion.

Preferably, the paper feeding platform plate is provided with a long rod along the width direction, the long rod is provided with a rotating arm, and the rotating arm is provided with a second rubber roller pressed on the paper.

By adopting the technical scheme, the paper is pressed on the paper feeding platform plate by the second rubber roller, so that the paper can be kept flat, and the paper can conveniently enter the next processing mechanism of the six-color offset press.

Preferably, the rotating arm comprises a straight guide rod, a moving block is sleeved on the straight guide rod, a first screw is screwed on the moving block, the first screw abuts against the straight guide rod, and the moving block is connected with a second rubber roller through a connecting rod.

Through adopting above-mentioned technical scheme, unscrew first screw rod and can make the movable block move on straight guide arm to adjust the distance of second rubber gyro wheel and stock. When the rotating arm is inclined relative to the paper feeding platform plate, the second rubber roller is moved along the length direction of the straight guide rod, and the pressing degree of the second rubber roller to the paper can be adjusted.

Preferably, the long rod is sleeved with a C-shaped sleeve, the rotating arm is fixed on the C-shaped sleeve, the C-shaped sleeve is screwed with a second screw rod, one end of the second screw rod is abutted to the long rod, and the other end of the second screw rod is fixed with a rotating handle.

By adopting the technical scheme, the second screw on the C-shaped sleeve is unscrewed, so that the C-shaped sleeve can rotate relative to the long rod, and the compression degree of the second rubber roller on the rotating arm to the paper can be changed by rotating the C-shaped sleeve.

Preferably, both sides of the paper feeding platform plate are fixed with a spur rack and L-shaped plates, the spur rack is arranged along the length direction of the paper feeding platform plate, and the two L-shaped plates are symmetrical about the conveyor belt; the two ends of the long rod are connected with a second bearing and a gear, the long rod is coaxially fixed with the inner ring of the second bearing, the gear is coaxially fixed with the outer ring of the second bearing, the axial end face and the radial side face of the gear are respectively contacted with the inner walls of the two faces of the L-shaped plate, and the gear is meshed with the straight rack; wherein be fixed with long layer board on the outer wall of an L template, long layer board sets up along the length direction of L template, and long layer board pop-up has the motor, and the gyro wheel is installed to the motor bottom, is equipped with straight long bar hole on the L template, and the rotation axis of motor passes the bar hole and is fixed with the gear is coaxial.

Through adopting above-mentioned technical scheme, it is rotatory to utilize motor drive gear, because gear and spur rack meshing, L template are spacing to the gear, long layer board is spacing to the motor, so motor and stock can move along the length direction of spur rack to can make the second rubber roller on the stock press in paper length direction's different positions department.

To sum up, the utility model discloses a beneficial technological effect does:

1. the paper is clamped by two rows of rubber rollers with variable distances, so that the correction effect can be achieved all the time when the width of the paper is changed;

2. the long rod provided with the rubber roller can move along the length direction of the paper feeding platform plate, so that the rubber roller on the long rod can be pressed at different positions in the length direction of the paper.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a paper feeding mechanism of a six-color offset printing press in an embodiment;

FIG. 2 is a schematic view of the hidden paper of FIG. 1;

FIG. 3 is a schematic view of the conveyor belt of FIG. 2 after it has been hidden;

FIG. 4 is a schematic view of the lower surface of the paper feeding mechanism of the six-color offset printing press;

FIG. 5 is an enlarged view of portion A of FIG. 1;

FIG. 6 is an enlarged view of portion B of FIG. 1;

FIG. 7 is a left side view of a paper feeding mechanism of a six-color offset printing press;

fig. 8 is an enlarged view of the portion C in fig. 7.

In the figure, 1, a paper feeding platform plate; 1a, a straight long through hole; 1b, a waist-shaped groove; 1c, a round hole; 2. a conveyor belt; 2a, air holes; 3. an electric cylinder; 31. a sliding seat; 4. a slide rail; 41. a slider; 5. a belt pulley; 6. a belt; 7. a long plate; 8. a first rubber roller; 9. a bump; 10. a first bearing; 11. a wheel axle; 12. a screw; 13. a long rod; 14. a rotating arm; 15. a second rubber roller; 16. a straight guide rod; 17. a moving block; 18. a first screw; 19. a connecting rod; 20. c-shaped sleeves; 21. a second screw; 22. rotating the handle; 23. straight rack; 24. a motor; 25. a gear; 26. a second bearing; 27. an L-shaped plate; 27a, a strip-shaped hole; 28. a roller; 29. a long pallet; 30. paper.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b): fig. 1 is the utility model discloses a six-color offset press paper feeding mechanism, including the straight platelike deck of form 1 of form of rectangle, the conveyer belt 2 is laid along its length direction in the middle of the 1 upper surface of the deck of form of form, and paper 30 is spread on conveyer belt 2, and the rigidity of the deck of form 1 of form advancing, conveyer belt 2 can remove for the deck of form advancing 1.

Referring to fig. 2 and 3, a row of circular holes 1c is formed in the paper feeding platform plate 1 along the length direction thereof, and the circular holes 1c are covered by the conveyor belt 2. The conveyor belt 2 is provided with a plurality of air holes 2a along the length direction thereof, and the air holes 2a are communicated with the round hole 1 c. The back of the paper feeding platform plate 1 is connected with a negative pressure fan through an air pipe on the round hole 1c, and the negative pressure fan sucks air to enable the paper 30 to be adsorbed on the conveying belt 2, so that the paper 30 can move along with the conveying belt 2.

As shown in fig. 4, the electric cylinder 3 and the slide rail 4 are fixed on the lower surface of the paper feeding platform plate 1, two slide blocks 41 are slidably fitted on the slide rail 4, each slide block 41 is fixed with a long plate 7, and one long plate 7 is fixed on the sliding seat 31 of the electric cylinder 3. The sliding seat 31 and the sliding block 41 move in the same direction, and both move along the width direction of the paper feeding platform plate 1. The lower surface of the paper feeding platform plate 1 is also provided with two belt pulleys 5, wherein a wheel shaft 11 of one belt pulley 5 is vertical to the lower surface of the paper feeding platform plate 1 and fixed, a wheel shaft 11 of the other belt pulley 5 is movably connected with the lower surface of the paper feeding platform plate 1, and the two belt pulleys 5 are connected through a belt 6. The belt 6 also moves along the width direction of the paper feeding platform plate 1, and the two long plates 7 are respectively fixed on the belt 6 at the two sides of the belt pulley 5.

As shown in fig. 4, the lower surface of the paper feeding platform plate 1 is provided with a waist-shaped groove 1b and a bump 9, a first bearing 10 is movably arranged in the waist-shaped groove 1b, the diameter of the first bearing 10 is matched with the width of the waist-shaped groove 1b, and a wheel shaft 11 of another belt pulley 5 is fixed in an inner ring of the first bearing 10. The projection 9 is screwed with a screw 12, the first bearing 10 protrudes from the waist-shaped groove 1b, and the screw 12 is pressed against the first bearing 10 (the outer wall of the first bearing 10 is provided with a groove for inserting the screw 12) in a direction away from the other pulley 5, thereby tensioning the belt 6.

Referring to fig. 2 and 4, a row of first rubber rollers 8 is disposed on the surface of each long plate 7 facing the paper feeding platform plate 1, each row of first rubber rollers 8 is disposed along the length direction of the paper feeding platform plate 1, and the two rows of first rubber rollers 8 are symmetrical with respect to the conveyor belt 2. A plurality of straight through holes 1a are formed in the paper feeding platform plate 1 along the width direction of the paper feeding platform plate, the number of the straight through holes 1a is the same as that of the first rubber rollers 8 on each long plate 7, and the first rubber rollers 8 stretch over the paper feeding platform plate 1 through the straight through holes 1 a.

As shown in fig. 5, a long rod 13 is disposed above the paper feeding platform plate 1 along the width direction thereof, a rotating arm 14 is disposed on the long rod 13, a second rubber roller 15 is connected to the rotating arm 14, and the second rubber roller 15 is used for pressing on the paper 30. The rotating arm 14 is composed of a straight guide rod 16 and a moving block 17, the moving block 17 is sleeved on the straight guide rod 16, a first screw 18 is screwed on the moving block 17, the first screw 18 abuts against the straight guide rod 16, and the moving block 17 is connected with a second rubber roller 15 through a connecting rod 19. The long rod 13 is sleeved with a C-shaped sleeve 20, the rotating arm 14 is fixed on the C-shaped sleeve 20, a second screw 21 is screwed on the C-shaped sleeve 20, one end of the second screw 21 is abutted against the long rod 13, and the other end of the second screw 21 is fixed with a rotating handle 22.

As shown in fig. 5, the second screw 21 of the C-shaped sleeve 20 is unscrewed to rotate the C-shaped sleeve 20 relative to the long rod 13, and the degree of pressing of the second rubber roller 15 of the rotating arm 14 against the paper 30 is changed by rotating the C-shaped sleeve 20. The first screw 18 is unscrewed, so that the moving block 17 can move on the straight guide rod 16, and the distance between the second rubber roller 15 and the long rod 13 is adjusted. When the rotating arm 14 is inclined relative to the paper feeding platform plate 1, the second rubber roller 15 is moved along the length direction of the straight guide rod 16, so that the degree of pressing of the second rubber roller 15 on the paper 30 can be adjusted.

As shown in fig. 1, both sides of the paper feeding platform plate 1 are fixed with a spur rack 23 and L-shaped plates 27 along the length direction thereof, and the openings of the two L-shaped plates 27 are opposite and symmetrically arranged with respect to the conveyor belt 2.

As shown in fig. 6, a second bearing 26 and a gear 25 are connected to both ends of the long rod 13, the gear 25 is coaxially fixed to an outer ring of the second bearing 26, the long rod 13 is coaxially fixed to an inner ring of the second bearing 26, axial end surfaces and radial side surfaces of the gear 25 are respectively in contact with inner walls of both surfaces of the L-shaped plate 27, and the gear 25 is engaged with the spur rack 23.

As shown in FIG. 7, a long supporting plate 29 is fixed on the outer wall of one of the L-shaped plates 27, the long supporting plate 29 is arranged along the length direction of the L-shaped plate 27, a motor 24 is supported on the long supporting plate 29, and a roller 28 is installed at the bottom of the motor 24 and is in contact with the long supporting plate 29. The L-shaped plate 27 is provided with a straight elongated hole 27a, and the rotation shaft of the motor 24 passes through the elongated hole 27a to be coaxially fixed with the gear 25. The motor 24 is started, the rotating shaft of the motor 24 can drive the gear 25 to rotate, and the gear 25 can move along the length direction of the spur rack 23 because the motor 24 is limited by the long supporting plate 29, so that the second rubber roller 15 on the long rod 13 can be pressed at different positions of the paper 30 in the length direction.

The implementation principle of the embodiment is as follows: starting the electric cylinder 3, driving one long plate 7 to move by the sliding seat 31 of the electric cylinder 3, driving the belt 6 to move by the long plate 7, and enabling the two long plates 7 to move oppositely or oppositely by the belt 6, so that the distance between the two rows of first rubber rollers 8 on the two long plates 7 is adjusted to be equal to the width of the paper 30 to be printed; then, the paper 30 is placed between the two rows of first rubber rollers 8 on the upper surface of the paper feeding platform plate 1, the negative pressure fan is started to adsorb the paper 30 on the conveying belt 2, the motor 24 is started simultaneously to press the second rubber rollers 15 on the paper 30, and finally the paper 30 moves to the next station along with the conveying belt 2.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a six look offset press paper feeding mechanism, includes the landing slab (1) of form advancing, the upper surface of landing slab (1) of form advancing lays conveyer belt (2) that are used for carrying paper (30), and conveyer belt (2) set up its characterized in that along the length direction of landing slab (1) of form advancing: the paper feeding device is characterized in that an electric cylinder (3), a sliding rail (4) and two belt pulleys (5) are arranged on the lower surface of the paper feeding platform plate (1), the two belt pulleys (5) are connected through a belt (6), two sliding blocks (41) are matched on the sliding rail (4) in a sliding mode, the moving directions of the sliding blocks (41), a sliding seat (31) and the belt (6) are all arranged along the width direction of the paper feeding platform plate (1), a long plate (7) is fixed on each sliding block (41), and the two long plates (7) are fixed on the belts (6) on the two sides of the belt pulleys (5) respectively; a row of first rubber rollers (8) is arranged on the surface, facing the paper feeding platform plate (1), of each long plate (7) along the length direction of the paper feeding platform plate (1), and the two rows of first rubber rollers (8) are symmetrical about the conveyor belt (2); a plurality of straight long through holes (1 a) are formed in the paper feeding platform plate (1) along the width direction of the paper feeding platform plate, and the first rubber roller (8) extends to the upper portion of the paper feeding platform plate (1) through the straight long through holes (1 a).

2. The six-color offset press paper feeding mechanism of claim 1, wherein: the paper feeding platform is characterized in that a waist-shaped groove (1 b) and a convex block (9) are arranged on the lower surface of the paper feeding platform plate (1), a first bearing (10) is movably arranged in the waist-shaped groove (1 b), the diameter of the first bearing (10) is matched with the width of the waist-shaped groove (1 b), a wheel shaft (11) is arranged in the first bearing (10), the belt pulley (5) is coaxially fixed on the wheel shaft (11), a screw (12) is connected onto the convex block (9) in a threaded mode, and the screw (12) abuts against the first bearing (10) in a direction away from the other belt pulley (5).

3. The six-color offset press paper feeding mechanism of claim 1, wherein: a plurality of round holes (1 c) are formed in the paper feeding platform plate (1) along the length direction of the paper feeding platform plate, the conveyor belt (2) covers the round holes (1 c), and the round holes (1 c) are connected with a negative pressure fan through air pipes on the lower surface of the paper feeding platform plate (1).

4. The six-color offset press paper feeding mechanism of claim 3, wherein: a plurality of air holes (2 a) are formed in the conveying belt (2) along the length direction of the paper feeding platform plate (1), and the air holes (2 a) are communicated with the round holes (1 c).

5. The six-color offset press paper feeding mechanism of claim 1, wherein: the paper feeding platform is characterized in that a long rod (13) is arranged above the paper feeding platform plate (1) along the width direction of the paper feeding platform plate, a rotating arm (14) is arranged on the long rod (13), and a second rubber roller (15) pressed on the paper (30) is arranged on the rotating arm (14).

6. The six-color offset press paper feeding mechanism of claim 5, wherein: the rotating arm (14) comprises a straight guide rod (16), a moving block (17) is sleeved on the straight guide rod (16), a first screw (18) is screwed on the moving block (17), the first screw (18) abuts against the straight guide rod (16), and the moving block (17) is connected with a second rubber roller (15) through a connecting rod (19).

7. The six-color offset press paper feeding mechanism of claim 5, wherein: the C-shaped sleeve (20) is sleeved on the long rod (13), the rotating arm (14) is fixed on the C-shaped sleeve (20), a second screw rod (21) is connected to the C-shaped sleeve (20) in a threaded mode, one end of the second screw rod (21) abuts against the long rod (13), and a rotating handle (22) is fixed to the other end of the second screw rod (21).

8. The six-color offset press paper feeding mechanism of claim 5, wherein: both sides of the paper feeding platform plate (1) are fixed with straight racks (23) and L-shaped plates (27), the straight racks (23) are arranged along the length direction of the paper feeding platform plate (1), and the two L-shaped plates (27) are symmetrical about the conveyor belt (2); two ends of the long rod (13) are connected with a second bearing (26) and a gear (25), the long rod (13) is coaxially fixed with an inner ring of the second bearing (26), the gear (25) is coaxially fixed with an outer ring of the second bearing (26), the axial end face and the radial side face of the gear (25) are respectively contacted with the inner walls of two faces of the L-shaped plate (27), and the gear (25) is meshed with a straight rack; a long supporting plate (29) is fixed on the outer wall of one L-shaped plate (27), the long supporting plate (29) is arranged along the length direction of the L-shaped plate (27), a motor (24) is supported on the long supporting plate (29), an idler wheel is installed at the bottom of the motor (24), a straight and long strip-shaped hole (27 a) is formed in the L-shaped plate (27), and a rotating shaft of the motor (24) penetrates through the strip-shaped hole (27 a) and is coaxially fixed with a gear (25).