CN216804830U

CN216804830U - Printing plate mechanism for split four-color offset press

Info

Publication number: CN216804830U
Application number: CN202220468686.7U
Authority: CN
Inventors: 闫辉; 王本恩; 刘尊挪
Original assignee: Qingdao Haisida Packaging Co ltd
Current assignee: Qingdao Haisida Packaging Co ltd
Priority date: 2022-03-04
Filing date: 2022-03-04
Publication date: 2022-06-24
Anticipated expiration: 2032-03-04

Abstract

The utility model relates to the technical field of printing plate mechanisms, in particular to a printing plate mechanism for a split four-color offset press, which comprises a roller, wherein shaft heads used for connecting the roller and equipment are respectively arranged on the left side and the right side of the outer wall of the roller, an installation block is detachably inserted in the inner cavity of the roller, a printing plate is arranged at the top end of the installation block, a sealing gasket is arranged at the bottom end of the printing plate, the sealing gasket is fixedly sleeved on the outer wall of the installation block, the bottom end of the sealing gasket is tightly contacted with the outer wall of the roller, and a fixing assembly used for fixing the installation block is arranged in the inner cavity of the roller. The utility model discloses a solved the inconvenient installation of printing plate and dismantlement on the cylinder of run-to-run four-color offset press, need consume the problem of a large amount of time when needing to dismantle the change printing plate, through the setting of fixed subassembly, can make things convenient for the dismantlement and the installation of printing plate, can shorten the installation and the takedown time of printing plate, avoid extravagant a large amount of times in the time of dismantling and installing the printing plate, lead to printing speed to reduce.

Description

Printing plate mechanism for split four-color offset press

Technical Field

The utility model relates to the technical field of printing plate mechanisms, in particular to a printing plate mechanism for a split four-color offset press.

Background

An offset printing press is a type of offset printing press, in which a printing image is first printed on a blanket cylinder from a printing plate and then transferred to a sheet by the blanket cylinder. The maximum breadth of paper to be printed by the split four-color offset press is four-quarter paper, and four-color printing can be completed by one-time paper feeding, so that four blanket cylinders are needed, and each blanket cylinder is provided with a printing plate.

However, the printing plate on the cylinder of the prior art split four-color offset printing machine is inconvenient to mount and dismount, and a great deal of time is consumed when the printing plate needs to be dismounted and replaced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a printing plate mechanism for a split four-color offset printing machine, which solves the problems in the background technology. In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a printing plate mechanism for four-color offset press of running from opposite directions, includes the cylinder, the outer wall left and right sides of cylinder is provided with the spindle nose that is used for being connected between cylinder and the equipment respectively, the inner chamber detachable of cylinder is pegged graft and is had the installation piece, the top of installation piece is provided with the printing plate, the bottom of printing plate is provided with sealed the pad, sealed fixed cup jointing is at the outer wall of installation piece, the bottom of sealed pad and the outer wall in close contact with of cylinder, the inner chamber of cylinder is provided with the fixed subassembly that is used for the fixed mounting piece.

Preferably, the fixing component comprises a sliding component, moving rods, fixing grooves, fixing cavities, fixing rods, sliding plates, fixing blocks and first springs, the sliding component is arranged in the inner cavity of the roller, the two moving rods are respectively and fixedly connected to the left side and the right side of the top end of the sliding component, the two fixing grooves are respectively formed in the left side and the right side of the outer wall of the mounting block, the two fixing cavities are respectively formed in the inner cavities of the two moving rods, the two pairs of fixing rods are respectively arranged in the inner cavities of the two fixing cavities, the two sliding plates are respectively and slidably sleeved on the outer walls of the two pairs of fixing rods, one ends of the two fixing blocks are respectively and detachably inserted in the inner cavities of the two fixing grooves, the other ends of the two fixing blocks respectively extend to the inner cavities of the two fixing cavities and are respectively and fixedly connected with the outer walls of the two sliding plates, one ends of the two first springs are respectively and fixedly connected with one side of the two sliding plates, which is far away from the fixing blocks, the other ends of the two first springs are respectively fixedly connected with the inner wall of the cavity.

Preferably, the inner chamber of fixed slot suits with the outer wall of fixed block and cooperates, the top of fixed block is the slope setting.

Preferably, the sliding assembly comprises a screw rod, a knob, a guide rod and a sliding block, one end of the screw rod is rotatably connected to the left side of the inner cavity of the roller through a bearing, the other end of the screw rod penetrates through the inner cavity of the roller and extends to the right end of the outer wall of the roller, the knob is fixedly installed at the right end of the screw rod, the guide rod is fixedly installed in the inner cavity of the roller, the sliding blocks are respectively in threaded connection with the left side and the right side of the outer wall of the screw rod and are respectively in sleeved connection with the left side and the right side of the outer wall of the guide rod in a sliding mode, and the top end of the sliding block is respectively fixedly connected with the bottom ends of the two moving rods.

Preferably, the threads on the left side and the right side of the outer wall of the screw rod are oppositely arranged.

Preferably, the bottom of installation piece is provided with the restriction subassembly, the restriction subassembly is including telescopic link, limiting plate, second spring and anti-skidding arris, two the equal fixed mounting in the bottom of installation piece of one end of telescopic link, limiting plate fixed mounting is in the bottom of two telescopic links, two the outer wall at two telescopic links, a plurality of are cup jointed respectively to the second spring anti-skidding arris from the past after set gradually in the bottom of limiting plate and with lead screw outer wall in close contact with, anti-skidding arris are the rubber arris.

Compared with the prior art, the utility model has the beneficial effects that:

firstly, when a printing plate is installed, the installation block is inserted into the inner cavity of the roller, the bottom end of the sealing gasket is in close contact with the outer wall of the roller, pigment is prevented from entering the inner cavity of the roller, when the installation block is inserted, the bottom end of the installation block can be in inclined contact with the top end of the fixed block, so that the fixed block drives the sliding plate to contract to the inner cavity of the fixed cavity under the limiting action of the fixed rod after being pressed, the first spring generates corresponding elastic deformation after being pressed and further has certain elastic force, the printing plate is continuously pressed downwards, the installation block slides downwards, the fixed groove is aligned with the fixed block, the fixed block and the sliding plate can be quickly restored to the original positions along a straight line under the limiting action of the fixed rod under the elastic force of the first spring, the fixed block is inserted into the inner cavity of the fixed groove, and the fixation of the installation block and the printing plate is realized, the printing plate is quickly installed, and the installation time of the printing plate can be saved;

secondly, when the printing plate is disassembled, the knob is rotated to drive the screw rod to rotate, and threads on the left side and the right side of the outer wall of the screw rod are oppositely arranged, so that when the screw rod rotates, opposite thread rotating forces can be generated on the left side and the right side of the outer wall of the screw rod, two sliding blocks can simultaneously slide to two ends of the screw rod along straight lines under the limiting action of the guide rod, two moving rods can respectively drive the fixed block to slide to the left end and the right end of the inner cavity of the roller, the fixed block is separated from the inner cavity of the fixed groove, the printing plate is pulled upwards and can be directly taken down, the purpose of quickly disassembling the printing plate is realized, and the disassembling time of the printing plate can be saved;

the utility model discloses a three, at the in-process that inserts the installation piece, can make the bottom of restriction board and the outer wall in close contact with of anti-skidding arris and lead screw, and make the restriction board upwards slide along the straight line under the limiting displacement of telescopic link, still can make the second spring produce corresponding elastic deformation after receiving pressure, thereby produce corresponding elasticity, under the elastic action of second spring, can make the bottom of restriction board and anti-skidding arris in close contact with and the lead screw contact more, thereby make the frictional force grow between restriction board and the anti-skidding arris and the lead screw outer wall, thereby realize the rotatory purpose of restriction lead screw, avoid the lead screw to receive the rotatory condition of vibrations appearance, the stability of the device when using has been improved.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a front cross-sectional view of the present invention;

FIG. 3 is an enlarged view taken at A of FIG. 2 according to the present invention;

FIG. 4 is an enlarged view of FIG. 2 at B of the present invention;

FIG. 5 is a schematic view of a fixing chamber according to the present invention;

FIG. 6 is a schematic view of the structure of the limiting plate of the present invention.

In the figure: 1. a drum; 2. mounting blocks; 3. printing plate; 4. a shaft head; 5. a screw rod; 6. a knob; 7. a guide bar; 8. a slider; 9. a travel bar; 10. a fixing groove; 11. a fixed cavity; 12. fixing the rod; 13. a slide plate; 14. a fixed block; 15. a first spring; 16. a telescopic rod; 17. a limiting plate; 18. a second spring; 19. and (4) anti-slip edges.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a worker skilled in the art based on the embodiments of the present invention without making creative efforts, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 6, the present invention provides a technical solution: a printing plate mechanism for a split four-color offset press comprises a roller 1, shaft heads 4 used for connecting the roller 1 and equipment are respectively arranged on the left side and the right side of the outer wall of the roller 1, an installation block 2 is detachably inserted in the inner cavity of the roller 1, a printing plate 3 is arranged at the top end of the installation block 2, a sealing gasket is arranged at the bottom end of the printing plate 3 and fixedly sleeved on the outer wall of the installation block 2, the bottom end of the sealing gasket is in close contact with the outer wall of the roller 1, a fixing assembly used for fixing the installation block 2 is arranged in the inner cavity of the roller 1, printing pigments and the like can be prevented from entering the inner cavity of the roller 1 through a gap between the printing plate 3 and the roller 1 through the arrangement of the sealing gasket, the stability of the device in use is improved, the disassembly and the installation of the printing plate 3 can be facilitated through the arrangement of the fixing assembly, the installation and the disassembly time of the printing plate 3 can be shortened, and a large amount of time waste in the disassembly and installation of the printing plate 3 can be avoided, leading to a reduction in the printing speed, the head 4 is of the prior art and is mainly used for the connection between the cylinder and the plate press, not illustrated herein.

In this embodiment, the fixing assembly includes a sliding assembly, moving rods 9, fixing grooves 10, fixing cavities 11, fixing rods 12, sliding plates 13, fixing blocks 14 and first springs 15, the sliding assembly is disposed in the inner cavity of the roller 1, the two moving rods 9 are respectively fixedly connected to the left and right sides of the top end of the sliding assembly, the two fixing grooves 10 are respectively disposed on the left and right sides of the outer wall of the mounting block 2, the two fixing cavities 11 are respectively disposed in the inner cavities of the two moving rods 9, the two pairs of fixing rods 12 are respectively disposed in the inner cavities of the two fixing cavities 11, the two sliding plates 13 are respectively slidably sleeved on the outer walls of the two pairs of fixing rods 12, one ends of the two fixing blocks 14 are respectively detachably inserted into the inner cavities of the two fixing grooves 10, the other ends of the two fixing blocks 14 respectively extend to the inner cavities of the two fixing cavities 11 and are respectively fixedly connected to the outer walls of the two sliding plates 13, one ends of the two first springs 15 are respectively fixedly connected to one side of the two sliding plates 13 away from the fixing blocks 14, the other ends of the two first springs 15 are respectively fixedly connected with the inner wall of the fixed cavity 11, when the printing plate 3 is installed, the installation block 2 is inserted into the inner cavity of the roller 1, the bottom end of the sealing gasket is in tight contact with the outer wall of the roller 1, so that pigment is prevented from entering the inner cavity of the roller 1, when the installation block 2 is inserted, the bottom end of the installation block 2 can be in contact with the top end inclined plane of the fixed block 14, so that the fixed block 14 is pressed to drive the sliding plate 13 to contract to the inner cavity of the fixed cavity 11 under the limiting action of the fixed rod 12, the first springs 15 are correspondingly elastically deformed under the pressure, the first springs 15 have certain elasticity, the printing plate 3 is continuously pressed downwards, the installation block 2 slides downwards, the fixed groove 10 is aligned with the fixed block 14, and the fixed block 14 can be quickly restored to the original position along a straight line under the limiting action of the fixed rod 12 under the elasticity of the first springs 15, the fixing block 14 is inserted into the inner cavity of the fixing groove 10, so that the mounting block 2 and the printing plate 3 are fixed, the printing plate 3 is quickly mounted, and the mounting time of the printing plate 3 can be saved.

In this embodiment, the inner cavity of the fixing groove 10 is matched with the outer wall of the fixing block 14, and the top end of the fixing block 14 is obliquely arranged, so that the top end of the fixing block 14 is contracted to the inner cavity of the fixing cavity 11 after being extruded by the bottom end of the mounting block 2.

In the embodiment, the sliding assembly comprises a screw rod 5, a knob 6, a guide rod 7 and sliders 8, one end of the screw rod 5 is rotatably connected to the left side of the inner cavity of the roller 1 through a bearing, the other end of the screw rod 5 penetrates through the inner cavity of the roller 1 and extends to the right end of the outer wall of the roller, the knob 6 is fixedly installed at the right end of the screw rod 5, the guide rod 7 is fixedly installed in the inner cavity of the roller 1, the two sliders 8 are respectively screwed on the left side and the right side of the outer wall of the screw rod 5 and respectively slidably sleeved on the left side and the right side of the outer wall of the guide rod 7, the top ends of the two sliders 8 are respectively and fixedly connected with the bottom ends of the two moving rods 9, when the printing plate 3 is disassembled, the knob 6 is rotated to enable the knob 6 to drive the screw rod 5 to rotate, and because the threads on the left side and the right side of the outer wall of the screw rod 5 are oppositely arranged, when the screw rod 5 is rotated, the screw rod 5 can generate opposite thread rotating force, and then two sliders 8 slide to the two ends of the screw rod 5 along straight lines under the limiting action of the guide rod 7, so that the two moving rods 9 respectively drive the fixed blocks 14 to slide to the left end and the right end of the inner cavity of the roller 1, the fixed blocks 14 are separated from the inner cavity of the fixed groove 10, the printing plate 3 is pulled upwards, and the printing plate can be directly taken down, the purpose of quickly disassembling the printing plate 3 is achieved, and the disassembling time of the printing plate 3 can be saved.

In this embodiment, the left and right threads of the outer wall of the screw rod 5 are oppositely arranged, and the left and right threads of the outer wall of the screw rod 5 are oppositely arranged, so that when the screw rod 5 rotates, the left and right sides of the outer wall of the screw rod 5 can generate opposite thread rotating force.

In this embodiment, the bottom end of the mounting block 2 is provided with a limiting component, the limiting component includes two telescopic rods 16, two limiting plates 17, two second springs 18 and two anti-slip ribs 19, one end of each of the two telescopic rods 16 is fixedly mounted at the bottom end of the mounting block 2, the limiting plates 17 are fixedly mounted at the bottom ends of the two telescopic rods 16, the two second springs 18 are respectively sleeved on the outer walls of the two telescopic rods 16, the plurality of anti-slip ribs 19 are sequentially arranged at the bottom end of the limiting plate 17 from front to back and are in close contact with the outer wall of the screw rod 5, the anti-slip ribs 19 are rubber ribs, during the process of inserting the mounting block 2, the bottom end of the limiting plate 17 and the anti-slip ribs 19 can be in close contact with the outer wall of the screw rod 5, the limiting plate 17 can slide upwards along a straight line under the limiting effect of the telescopic rods 16, and the second springs 18 can generate corresponding elastic deformation after being subjected to pressure, so as to generate corresponding elastic force, under the action of the elastic force of the second spring 18, the bottom end of the limiting plate 17 and the anti-slip edge 19 can be in closer contact with the screw rod 5, so that the friction force between the limiting plate 17 and the anti-slip edge 19 and the outer wall of the screw rod 5 is increased, the purpose of limiting the rotation of the screw rod 5 is achieved, the situation that the screw rod 5 rotates due to vibration is avoided, and the stability of the device in use is improved.

The use method and the advantages of the utility model are as follows: when in use, the working process is as follows:

when the printing plate 3 is installed, the installation block 2 is inserted into the inner cavity of the roller 1, the bottom end of the sealing gasket is in close contact with the outer wall of the roller 1, pigment is prevented from entering the inner cavity of the roller 1, when the installation block 2 is inserted, the bottom end of the installation block 2 can be in contact with the top end inclined plane of the fixed block 14, so that the fixed block 14 is pressed to drive the sliding plate 13 to be contracted to the inner cavity of the fixed cavity 11 under the limiting action of the fixing rod 12, the first spring 15 is pressed to generate corresponding elastic deformation, the first spring 15 has certain elastic force, the printing plate 3 is continuously pressed downwards to enable the installation block 2 to slide downwards, the fixed groove 10 is aligned with the fixed block 14, under the elastic force of the first spring 15, the fixed block 14 and the sliding plate 13 can be quickly restored to the original positions along a straight line under the limiting action of the fixing rod 12, and the fixed block 14 is inserted into the inner cavity of the fixed groove 10, therefore, the mounting block 2 and the printing plate 3 are fixed, the printing plate 3 is rapidly mounted, and the mounting time of the printing plate 3 can be saved;

when the printing plate 3 is disassembled, the knob 6 is rotated, so that the knob 6 drives the screw rod 5 to rotate, and the threads on the left side and the right side of the outer wall of the screw rod 5 are oppositely arranged, so that when the screw rod 5 rotates, the left side and the right side of the outer wall of the screw rod 5 can generate opposite thread rotating forces, and then the two sliders 8 can simultaneously slide towards the two ends of the screw rod 5 along straight lines under the limiting action of the guide rod 7, so that the two movable rods 9 respectively drive the fixed blocks 14 to slide towards the left end and the right end of the inner cavity of the roller 1, and further the fixed blocks 14 are separated from the inner cavity of the fixed groove 10, and the printing plate 3 is pulled upwards and can be directly taken down, thereby realizing the purpose of quickly disassembling the printing plate 3 and saving the disassembling time of the printing plate 3;

in the process of inserting the mounting block 2, the bottom end of the limiting plate 17 and the anti-slip edge 19 can be in close contact with the outer wall of the screw 5, the limiting plate 17 can slide upwards along a straight line under the limiting effect of the telescopic rod 16, the second spring 18 can also generate corresponding elastic deformation after being stressed, and therefore corresponding elastic force is generated, under the elastic force effect of the second spring 18, the bottom end of the limiting plate 17 and the anti-slip edge 19 can be in close contact with the screw 5, the friction force between the limiting plate 17 and the anti-slip edge 19 and the outer wall of the screw 5 is increased, the purpose of limiting the rotation of the screw 5 is achieved, the situation that the screw 5 rotates due to vibration is avoided, and the stability of the device in use is improved.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A plate mechanism for a folio four-color offset printing press, comprising a cylinder (1), characterized in that: the utility model discloses a cylinder, including cylinder (1), outer wall left and right sides, the inner chamber detachable of cylinder (1) is provided with respectively and is used for the spindle nose (4) of being connected between cylinder (1) and the equipment, the inner chamber detachable of cylinder (1) is pegged graft and is had installation piece (2), the top of installation piece (2) is provided with printing plate (3), the bottom of printing plate (3) is provided with sealed the pad, sealed fixed the cup jointing at the outer wall of installation piece (2), the bottom of sealed pad and the outer wall in close contact with of cylinder (1), the inner chamber of cylinder (1) is provided with the fixed subassembly that is used for fixed mounting piece (2).

2. A plate mechanism for a split four color offset printing press according to claim 1, wherein: the fixing assembly comprises a sliding assembly, moving rods (9), fixing grooves (10), fixing cavities (11), fixing rods (12), sliding plates (13), fixing blocks (14) and a first spring (15), the sliding assembly is arranged in an inner cavity of the roller (1), the two moving rods (9) are respectively and fixedly connected to the left side and the right side of the top end of the sliding assembly, the two fixing grooves (10) are respectively arranged on the left side and the right side of the outer wall of the mounting block (2), the two fixing cavities (11) are respectively arranged in inner cavities of the two moving rods (9), the two pairs of fixing rods (12) are respectively arranged in inner cavities of the two fixing cavities (11), the two sliding plates (13) are respectively and slidably sleeved on the outer walls of the two pairs of fixing rods (12), and one ends of the two fixing blocks (14) are respectively and detachably inserted in the inner cavities of the two fixing grooves (10), two the other end of fixed block (14) extends to the inner chamber of two fixed chambeies (11) respectively and respectively with the outer wall fixed connection of two slide (13), two one side fixed connection of fixed block (14), two are kept away from respectively with two slide (13) to the one end of first spring (15) the inner wall fixed connection of fixed chamber (11) respectively to the other end of first spring (15).

3. A plate mechanism for a four-color offset printer according to claim 2, wherein: the inner cavity of the fixing groove (10) is matched with the outer wall of the fixing block (14), and the top end of the fixing block (14) is obliquely arranged.

4. A plate mechanism for a four-color offset printer according to claim 2, wherein: the sliding assembly comprises a screw rod (5), a knob (6), a guide rod (7) and a sliding block (8), one end of the screw rod (5) is rotatably connected to the left side of an inner cavity of the roller (1) through a bearing, the other end of the screw rod (5) penetrates through the inner cavity of the roller (1) and extends to the right end of the outer wall of the roller, the knob (6) is fixedly installed at the right end of the screw rod (5), the guide rod (7) is fixedly installed in the inner cavity of the roller (1) and is two, the sliding block (8) is respectively screwed on the left side and the right side of the outer wall of the screw rod (5) and is sleeved on the left side and the right side of the outer wall of the guide rod (7) in a slidable mode respectively, and the top end of the sliding block (8) is fixedly connected with the bottom ends of the two moving rods (9).

5. A plate mechanism for a split four color offset printing press according to claim 4, wherein: the left and right threads of the outer wall of the screw rod (5) are oppositely arranged.

6. A plate mechanism for a split four color offset printing press according to claim 1, wherein: the bottom of installation piece (2) is provided with the restriction subassembly, the restriction subassembly is including telescopic link (16), limiting plate (17), second spring (18) and anti-skidding arris (19), two the equal fixed mounting in the bottom of installation piece (2) of one end of telescopic link (16), limiting plate (17) fixed mounting is in the bottom of two telescopic links (16), two second spring (18) cup joint the outer wall at two telescopic links (16) respectively, a plurality of anti-skidding arris (19) set gradually in the bottom of limiting plate (17) and with lead screw (5) outer wall in close contact with after to in the past, anti-skidding arris (19) are the rubber arris.