CN210418605U - Limiting device for offset press conveying - Google Patents

Abstract

The utility model discloses a stop device of offset press conveying relates to the lithography apparatus field, aims at solving the problem that traditional printing can't carry out the paper and rectify, and its technical scheme main points are: including the frame, set up in the conveying frame of frame, encircle and set up in the conveyer belt of conveying frame, the frame rotates and is connected with stop gear, stop gear is including rotating the rotating turret of connecting in the conveying frame, the rotating turret is square frame form and sets up, the rotating turret still is provided with the wind pressure subassembly that prevents the upwards perk of cardboard both sides border, the conveying frame is provided with the control assembly who is used for controlling rotating turret turned angle, control assembly includes fixed connection in the control motor of conveying frame, connect in the wind-up pulley of control motor output shaft, connect in the rolling rope of wind-up pulley lateral wall, the end connection of rolling rope is in the rotating turret side. The utility model discloses a stop device of offset press conveying has the advantage that can rectify the paper and rectify, can effectively improve the yield.

Description

Limiting device for offset press conveying

Technical Field

The utility model belongs to the technical field of lithography apparatus's technique and specifically relates to a stop device of offset press conveying is related to.

Background

In the printing industry, the printing of cardboard has been converted from the traditional printing mode to an automatic printing mode, wherein an offset printing machine plays an important role, and the offset printing machine is a flat-plate printing machine, and printing images and texts are firstly printed on a rubber cylinder from a printing plate and then are transferred to paper by the rubber cylinder.

The existing offset printing machine generally comprises a feeding mechanism, a conveying mechanism, a printing mechanism, a curing mechanism and a discharging mechanism, wherein when paper is conveyed to the conveying mechanism by the feeding mechanism, and in the process of forward conveying by the driving of the conveying mechanism, if the paper is deflected, the deflected paper cannot be corrected in time, and the printing uniformity in the subsequent printing step can be influenced.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a stop device of offset press conveying has the advantage that can rectify to the paper in the conveying.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a stop device of offset press conveying, includes the frame, set up in the transport frame of frame, encircle to set up in the conveyer belt of transport frame, the frame rotates and is connected with stop gear, stop gear is connected in the rotating turret of transport frame including rotating, the rotating turret is the setting of square frame form, the rotating turret still is provided with and prevents the wind pressure subassembly of cardboard both sides border upwards perk, the control assembly who is used for controlling the rotating turret turned angle is set up to the transport frame, control assembly includes fixed connection in the control motor of transport frame, connect in the wind-up wheel of control motor output shaft, connect in the rolling rope of wind-up wheel lateral wall, the end connection of rolling rope is in the rotating turret side.

Through adopting above-mentioned technical scheme, it rotates to drive the rolling wheel through the control motor, thereby pack up the winding rope winding through the rolling wheel, thereby upwards stimulate the rotating turret through the winding rope, make the rotating turret upwards lift and keep away from the conveying frame surface, when needs carry out the correction operation, the control motor drives the reverse rotation of rolling wheel, thereby loosen the winding rope, rotate downwards under the action of rotating turret self gravity this moment, when the rotating turret rotates to parallel with the conveying frame surface, control motor stall and locking, make the rotating turret keep in the position parallel with conveying frame surface, and blow to the paper through the wind pressure subassembly in paper data send process, exert pressure to the paper side, prevent that the paper from lifting.

The utility model discloses further set up to: the side wall of the winding wheel is arranged in a V shape.

Through adopting above-mentioned technical scheme, when the rolling wheel rotated, winding that the rolling rope can be more smooth was on the rolling wheel like this.

The utility model discloses further set up to: the wind pressure subassembly includes fixed connection in the wind pressure pole of rotating turret, the wind pressure pole is connected with the adjusting part, the adjusting part is connected with the subassembly of blowing, the subassembly slope of blowing blows towards the side of cardboard.

Through adopting above-mentioned technical scheme, when carrying out the position correction of paper, blow towards the both sides surface of paper through the subassembly of blowing to blow the side of paper to the conveying frame and press, and because the subassembly of blowing is the slope by the paper middle part to the paper outside and blows, can guarantee that the paper does not receive the interference of wind current, guarantee the level and smooth of paper.

The utility model discloses further set up to: the blowing assembly comprises a fan, a blowing pipe connected to the fan and a blowing nozzle connected to the blowing pipe, and the blowing nozzle is connected to the adjusting assembly and blows air towards the side edge of the paper.

By adopting the technical scheme, during work, air generated by the fan is sent into the air blowing nozzle through the air blowing pipe and blown to the surface of paper by the air blowing nozzle, so that the paper is blown and pressed.

The utility model discloses further set up to: the adjusting part includes fixed connection in the fixing base of rotating turret, the fixing base is connected with the dwang, the blowing nozzle bottom is connected with the swivel becket, the swivel becket is worn to locate in the dwang, the equal interval of swivel becket inner wall is provided with a plurality of rubber archs, the dwang outer wall is provided with a plurality of rubber archs.

Through adopting above-mentioned technical scheme, it is different according to the width of each batch printing cardboard, the direction of blowing nozzle needs to be adjusted, consequently when the direction of blowing of needs to blowing nozzle is adjusted, rotate the blowing nozzle, when rotating the blowing nozzle, the protruding mutual extrusion deformation of rubber arch and the rubber arch of dwang outer wall of swivel becket inner wall, and because the protruding crisscross setting of rubber on swivel becket and the dwang, when the swivel becket rotates to with the dwang joint, the blowing nozzle can support and blow at a certain fixed position, accomplish the angular adjustment of blowing nozzle.

The utility model discloses further set up to: the rotary frame is connected with a correcting mechanism in a sliding mode, the correcting mechanism is used for correcting the position of the paper board on the conveying frame and comprises a driving assembly arranged on the rotary frame, the power output end of the driving assembly is connected with two correcting rods which are parallel to each other, the driving assembly drives the two correcting rods to move in the opposite direction or in the opposite direction, and the correcting rods are connected with a correcting assembly used for pushing the supporting plate to the middle.

By adopting the technical scheme, when the paper is conveyed forwards along the conveying frame, the rotating frame rotates to the position parallel to the conveying frame, and the driving assembly can drive the two correcting rods to move to the proper positions according to the width of the printed paper, so that the paper correcting device is suitable for correcting the paper with different widths.

The utility model discloses further set up to: drive assembly includes fixed connection in the drive box that running through in rotating turret and both ends, the equal sliding connection of upper surface and the lower surface of drive box inner wall has the drive rack, two the flank of tooth of drive rack sets up relatively, it is provided with drive gear to rotate in the drive box, drive gear meshes simultaneously with two drive racks, drive box outer wall connection has and is used for driving drive rack pivoted driving motor, two the both ends that the drive rack stretches out the drive box are connected respectively in the tip of two correcting levers and are driven the correcting lever and remove.

Through adopting above-mentioned technical scheme, when the relative distance between two correction poles need to be adjusted, driving motor starts and drives drive gear and rotates, because drive gear meshes with two drive racks simultaneously, consequently when drive gear rotates, can drive two drive racks and realize moving in opposite directions or carrying on the back mutually, and then drive two correction poles and realize moving in opposite directions or carrying on the back mutually, accomplish the position control of volume correction pole, when the paper width broad of printing, slide two correction poles to both sides, when the paper width of printing is narrower, slide two correction poles to the middle part.

The utility model discloses further set up to: the correcting assembly comprises a mounting seat fixedly connected to the side wall of the correcting rod and a lifting cylinder fixedly connected to the mounting rod, the lifting cylinder stretches along the direction perpendicular to the surface of the conveying frame, a piston rod of the lifting cylinder is connected with a sliding table cylinder, a sliding table of the sliding table cylinder is connected with a connecting rod, and the bottom end of the connecting rod is connected with a push block used for pushing paper.

Through adopting above-mentioned technical scheme, when accomplishing the position adjustment of two correcting levers and carrying out the paper conveying, the slip table cylinder drives the connecting rod and carries out reciprocating motion, and the lift cylinder starts simultaneously for when the ejector pad is promoted by both sides to the centre, the lift cylinder extension will ejector pad butt on conveying frame surface, when the ejector pad was removed by the centre to both sides, the lift cylinder shrinkage was compressed and is driven the ejector pad and leave conveying frame surface, through constantly repeating above-mentioned operation, will take place the paper of position skew and promote to the centre.

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

1. the rolling wheel is driven to rotate by the control motor, so that the rolling rope is wound and collected by the rolling wheel, the rotating frame is pulled upwards by the rolling rope, the rotating frame is lifted upwards and is far away from the surface of the conveying frame, when correction operation is needed, the control motor drives the rolling wheel to rotate reversely, so that the rolling rope is loosened, the rotating frame rotates downwards under the action of self gravity of the rotating frame, when the rotating frame rotates to be parallel to the surface of the conveying frame, the control motor stops rotating and locks, the rotating frame is kept at a position parallel to the surface of the conveying frame, air is blown to the paper by the air pressure assembly in the paper conveying process, pressure is applied to the side edge of the paper, and the paper is prevented from being lifted;

2. when the position correction of carrying out the paper, blow towards the both sides surface of paper through the subassembly of blowing to blow the side of paper to the conveying frame and press, and because the subassembly of blowing is the slope by the paper middle part to the paper outside and blows, can guarantee that the paper does not receive the interference of distinguished and admirable, guarantee the level and smooth of paper.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural diagram of the limiting mechanism of the present invention.

Fig. 3 is a schematic structural diagram of the driving assembly of the present invention.

Fig. 4 is a schematic structural diagram of the correction assembly of the present invention.

Fig. 5 is a schematic structural diagram of the adjusting assembly of the present invention.

In the figure, 1, a frame; 2. a transfer frame; 3. a conveyor belt; 4. a limiting mechanism; 5. a rotating frame; 6. a correction mechanism; 7. a wind pressure assembly; 8. a control component; 9. a drive assembly; 10. a correction lever; 11. a correction component; 12. a drive cartridge; 13. a drive rack; 14. a drive gear; 15. a drive motor; 16. a mounting seat; 17. a lifting cylinder; 18. a sliding table cylinder; 19. a connecting rod; 20. a push block; 21. a wind pressure lever; 22. an adjustment assembly; 23. a blowing assembly; 24. a fan; 25. an air blowing pipe; 26. a blowing nozzle; 27. a fixed seat; 28. rotating the rod; 29. a rotating ring; 30. a rubber bulge; 31. controlling the motor; 32. a winding wheel; 33. winding the rope; 34. and (6) conveying rollers.

Detailed Description

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

Referring to fig. 1, for the utility model discloses a stop device of offset press conveying, including setting up in subaerial frame 1, the fixed conveying frame 2 that sets up in frame 1, encircle and set up in conveying frame 2's conveyer belt 3, conveyer belt 3 can drive the paper and carry out the conveying along conveying frame 2 surface forward, frame 1 rotates and is connected with stop gear 4, stop gear 4 includes to rotate through the pivot and connects in conveying frame 2's rotating turret 5, rotating turret 5 is the setting of square frame form, it is connected with the aligning gear 6 that is used for carrying out position correction to the cardboard on conveying frame 2 to slide on rotating turret 5, rotating turret 5 still is provided with prevents the wind pressure subassembly 7 that cardboard both sides border upwards perk, conveying frame 2 is provided with the control assembly 8 that is used for controlling rotating frame 5 turned angle. The paper is sent to on the carriage 2 by feed mechanism, and convey forward by the drive of conveyer belt 3, in the data send process, rotating turret 5 rotates downwards, and through the paper correction of aligning gear 6 will take place the skew, make the paper keep the position correct, and blow the pressure to both sides through setting up wind pressure subassembly 7 to the border of paper, thereby can prevent that the paper border from upwards turning up when correcting subassembly 11 is rectified the paper, influence the planarization of paper, control assembly 8 can control the turned angle of rotating turret 5, when need not use stop gear 4, upwards lift rotating turret 5 through control assembly 8, can rectify in real time the paper that takes place the skew like this when the paper conveying, improve the regularity of paper, and then improve the yield of printing, reduce the quantity of unqualified product.

As shown in fig. 1 and 2, the correcting mechanism 6 includes a driving assembly 9 disposed on the rotating frame 5, two correcting rods 10 parallel to each other are connected to a power output end of the driving assembly 9, and the two correcting rods 10 can be driven by the driving assembly 9 to move oppositely or away from each other, a plurality of groups of correcting assemblies 11 are further connected to the correcting rods 10, and the correcting assemblies 11 can push the paper sheets on the conveying frame 2 to the middle; when the paper is conveyed forwards along the conveying frame 2, the rotating frame 5 rotates to a position parallel to the conveying frame 2, and the driving assembly 9 can drive the two correcting rods 10 to move to proper positions according to the width of the printed paper, so that the paper correcting device is suitable for correcting the paper with different widths.

As shown in fig. 3, the driving assembly 9 includes a driving box 12 welded to the rotating frame 5 and having two ends penetrating through, the driving box 12 is located in the middle of the cross bar of the rotating frame 5, the upper surface and the lower surface of the inner wall of the driving box 12 are both connected with driving racks 13 through sliding chutes in a sliding manner, the tooth surfaces of the two driving racks 13 are arranged opposite to each other, a driving gear 14 is rotatably arranged in the driving box 12, the driving gear 14 is engaged with the two driving racks 13 at the same time, the outer wall of the driving box 12 is connected with a driving motor 15 for driving the driving racks 13 to rotate, the two ends of the two driving racks 13 extending out of the driving box 12 are respectively connected to the ends of the two correcting rods 10 and drive the correcting rods 10 to move; when the relative distance between the two correction rods 10 needs to be adjusted, the driving motor 15 is started and drives the driving gear 14 to rotate, and the driving gear 14 is meshed with the two driving racks 13 simultaneously, so that when the driving gear 14 rotates, the two driving racks 13 can be driven to move in the opposite direction or in the opposite direction, and then the two correction rods 10 are driven to move in the opposite direction or in the opposite direction, so that the position adjustment of the correction rods 10 is completed, when the width of printed paper is wide, the two correction rods 10 slide towards two sides, and when the width of printed paper is narrow, the two correction rods 10 slide towards the middle.

As shown in fig. 4, the correcting assembly 11 includes a plurality of mounting seats 16 fixedly welded to the side wall of the correcting rod 10, and a lifting cylinder 17 welded to the mounting seats 16, the lifting cylinder 17 extends and retracts in a direction perpendicular to the surface of the conveying frame 2, a piston rod of the lifting cylinder 17 is connected to a sliding table cylinder 18, a sliding table of the sliding table cylinder 18 is connected to a connecting rod 19, and a bottom end of the connecting rod 19 is connected to a pushing block 20 for pushing paper; when the position adjustment of the two correcting rods 10 is completed and the paper is conveyed, the sliding table cylinder 18 drives the connecting rod 19 to perform reciprocating movement, and simultaneously the lifting cylinder 17 is started, so that when the push block 20 is pushed from two sides to the middle, the lifting cylinder 17 extends and abuts against the push block 20 on the surface of the conveying frame 2, when the push block 20 is moved from the middle to two sides, the lifting cylinder 17 contracts and drives the push block 20 to leave the surface of the conveying frame 2, and the paper with the position deflection is pushed to the middle by continuously repeating the operations.

As shown in fig. 1 and 5, the wind pressure assembly 7 comprises a wind pressure rod 21 fixedly connected to the rotating frame 5, the wind pressure rod 21 is connected with an adjusting assembly 22, the adjusting assembly 22 is connected with a blowing assembly 23, and the blowing assembly 23 blows air obliquely towards the side edge of the paperboard; when the position correction of paper is carried out, the air blowing component 23 blows air towards the surfaces of the two sides of the paper, so that the side edges of the paper are blown to the conveying frame 2, and the air blowing component 23 blows air obliquely from the middle of the paper to the outer side of the paper, so that the paper is not disturbed by air flow, and the paper is guaranteed to be smooth.

As shown in fig. 2 and 5, the air blowing assembly 23 includes a blower 24, an air blowing pipe 25 connected to the blower 24, an air blowing nozzle 26 connected to the air blowing pipe 25, the air blowing nozzle 26 being connected to the regulating assembly 22 and blowing air toward the side of the sheet; when the paper blowing device works, air generated by the fan 24 is sent into the air blowing nozzle 26 through the air blowing pipe 25 and blown to the surface of paper through the air blowing nozzle 26, and blowing pressure on the paper is achieved.

As shown in fig. 5, the adjusting assembly 22 includes a fixing seat 27 welded to the rotating frame 5, a rotating rod 28 is connected to the fixing seat 27, a rotating ring 29 is connected to the bottom of the blowing nozzle 26, the rotating rod 28 is inserted into the rotating ring 29 so that the blowing nozzle 26 can rotate relative to the rotating rod 28, a plurality of rubber protrusions 30 are arranged on the inner wall of the rotating ring 29 at equal intervals, and a plurality of rubber protrusions 30 are arranged on the outer wall of the rotating rod 28; according to the different width of each batch of printing paperboard, the blowing direction of the blowing nozzle 26 needs to be adjusted, therefore, when the blowing direction of the blowing nozzle 26 needs to be adjusted, the blowing nozzle 26 is rotated, and when the blowing nozzle 26 is rotated, the rubber bulge 30 on the inner wall of the rotating ring 29 and the rubber bulge 30 on the outer wall of the rotating rod 28 are extruded and deformed mutually, and because the rotating ring 29 and the rubber bulge 30 on the rotating rod 28 are arranged in a staggered mode, when the rotating ring 29 is rotated to be clamped with the rotating rod 28, the blowing nozzle 26 can be supported at a certain fixed position for blowing, and the angle adjustment of the blowing nozzle 26 is completed.

As shown in fig. 2, the control assembly 8 includes a control motor 31 fixedly connected to the conveying frame 2, a winding wheel 32 connected to an output shaft of the control motor 31, and a winding rope 33 connected to a side wall of the winding wheel 32, wherein the control motor 31 is positioned higher than a rotating shaft of the rotating frame 5, and an end of the winding rope 33 is connected to a side edge of the rotating frame 5; drive the rolling wheel 32 through control motor 31 and rotate, thereby it packs up to receive the winding rope 33 winding through rolling wheel 32, thereby pull the rotating turret 5 upwards through receiving the winding rope 33, make the rotating turret 5 upwards lift and keep away from conveying frame 2 surface, when needs carry out the correction operation, control motor 31 drives rolling wheel 32 antiport, thereby loosen receiving the winding rope 33, rotate downwards under rotating turret 5 self action of gravity this moment, when rotating turret 5 rotates to 2 surface parallels with the conveying frame, control motor 31 stall is locked, make rotating turret 5 keep in the position with conveying frame 2 surface parallel.

As shown in fig. 2, the side wall of the winding wheel 32 is arranged in a V shape, so that the winding rope 33 can be wound on the winding wheel 32 more smoothly when the winding wheel 32 rotates.

As shown in fig. 1, the conveying frame 2 is disposed in an oval shape and is disposed obliquely, conveying rollers 34 are respectively rotatably disposed at two ends of the conveying frame 2 through rotating shafts, the conveying belt 3 is rotatably sleeved on the two conveying rollers 34, one conveying roller 34 is driven by a motor to rotate, and patterns are disposed on the upper surface of the conveying belt 3; when needs convey the paper, the motor drives transfer roller 34 and rotates, and then drives conveyer belt 3 and rotates, drives the paper through the frictional force between conveyer belt 3 and the paper and conveys forward to through set up the decorative pattern on conveyer belt 3 surface, increase the frictional force between conveyer belt 3 and the paper.

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 (8)

1. The utility model provides a stop device of offset press conveying which characterized in that: comprises a frame (1), a conveying frame (2) arranged on the frame (1), and a conveying belt (3) arranged around the conveying frame (2), the frame (1) is rotationally connected with a limiting mechanism (4), the limiting mechanism (4) comprises a rotating frame (5) which is rotationally connected with the conveying frame (2), the rotating frame (5) is arranged in a square frame shape, the rotating frame (5) is also provided with a wind pressure component (7) for preventing the two side edges of the paper board from upwarping upwards, the transmission rack (2) is provided with a control component (8) for controlling the rotation angle of the rotating rack (5), the control assembly (8) comprises a control motor (31) fixedly connected to the conveying frame (2), a winding wheel (32) connected to an output shaft of the control motor (31), and a winding rope (33) connected to the side wall of the winding wheel (32), and the end part of the winding rope (33) is connected to the side edge of the rotating frame (5).

2. The offset printing press feed stop device of claim 1, further comprising: the side wall of the winding wheel (32) is arranged in a V shape.

3. The offset printing press feed stop device of claim 1, further comprising: wind pressure subassembly (7) are including fixed connection in wind pressure pole (21) of rotating turret (5), wind pressure pole (21) are connected with adjusting part (22), adjusting part (22) are connected with air blowing subassembly (23), air blowing subassembly (23) slope is blown towards the side of cardboard.

4. A stop device for offset press transport according to claim 3, wherein: the air blowing assembly (23) comprises a fan (24), an air blowing pipe (25) connected to the fan (24) and an air blowing nozzle (26) connected to the air blowing pipe (25), wherein the air blowing nozzle (26) is connected to the adjusting assembly (22) and blows air towards the side edge of the paper.

5. The apparatus of claim 4, wherein: adjusting part (22) include fixing base (27) of fixed connection in rotating turret (5), fixing base (27) are connected with dwang (28), blowing nozzle (26) bottom is connected with swivel becket (29), dwang (28) are worn to locate in swivel becket (29), the equidistant protruding (30) of a plurality of rubbers that are provided with of swivel becket (29) inner wall, dwang (28) outer wall is provided with the protruding (30) of a plurality of rubbers.

6. The offset printing press feed stop device of claim 1, further comprising: the paper board conveying device is characterized in that the rotating frame (5) is connected with a correcting mechanism (6) in a sliding mode and used for correcting the position of a paper board on the conveying frame (2), the correcting mechanism (6) comprises a driving assembly (9) arranged on the rotating frame (5), the power output end of the driving assembly (9) is connected with two correcting rods (10) which are parallel to each other, the driving assembly (9) drives the two correcting rods (10) to move in the opposite direction or in the opposite direction, and the correcting rods (10) are connected with a correcting assembly (11) used for pushing the supporting plate to the middle.

7. The apparatus of claim 6, wherein: drive assembly (9) include drive box (12) that fixed connection runs through in rotating turret (5) and both ends, the equal sliding connection of upper surface and the lower surface of drive box (12) inner wall has drive rack (13), two the flank of tooth of drive rack (13) sets up relatively, drive box (12) internal rotation is provided with drive gear (14), drive gear (14) and two drive rack (13) mesh simultaneously, drive box (12) outer wall connection has and is used for driving drive rack (13) pivoted driving motor (15), two the both ends that drive rack (13) stretched out drive box (12) are connected respectively in the tip of two correcting levers (10) and are driven correcting lever (10) and remove.

8. The apparatus of claim 7, wherein: the utility model discloses a paper correction device, including correction subassembly (11) including fixed connection in mount pad (16), the lift cylinder (17) of installation pole of correction pole (10) lateral wall, lift cylinder (17) are flexible along the direction on perpendicular to conveying frame (2) surface, the piston rod of lift cylinder (17) is connected with slip table cylinder (18), the slip table of slip table cylinder (18) is connected with connecting rod (19), the bottom of connecting rod (19) is connected with ejector pad (20) that are used for promoting the paper.

Images