CN114103433B - Automatic locking and positioning device for sleeve type plate cylinder of offset press - Google Patents
Automatic locking and positioning device for sleeve type plate cylinder of offset press Download PDFInfo
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- CN114103433B CN114103433B CN202111542954.1A CN202111542954A CN114103433B CN 114103433 B CN114103433 B CN 114103433B CN 202111542954 A CN202111542954 A CN 202111542954A CN 114103433 B CN114103433 B CN 114103433B
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- printing plate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F27/00—Devices for attaching printing elements or formes to supports
- B41F27/06—Devices for attaching printing elements or formes to supports for attaching printing elements to forme cylinders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F7/00—Rotary lithographic machines
- B41F7/02—Rotary lithographic machines for offset printing
Abstract
The invention discloses an automatic locking and positioning device for a sleeve type printing plate cylinder of an offset press, which belongs to the field of offset printing equipment, when a printing plate cylinder body is arranged, one part of air flow in a main air passage enters an expanding air passage to expand an elastic layer of the printing plate cylinder, the other part of the air flow enters a bolt air cavity, bolts at two sides are pushed by air pressure to respectively move outwards, a positioning block can be inserted into a fixed block, after the printing plate cylinder body is arranged in place, an air source is closed, the elastic layer of the printing plate cylinder still holds a printing plate shaft, the air pressure in the bolt air cavity disappears, the bolts are pushed to move inwards by the elastic action of a telescopic spring and are locked in a hook groove inserted into the positioning block, an axial positioning effect is realized, meanwhile, the rotary connection and the matching of the positioning block and the fixed block also realize circumferential tangential positioning, the adjustment is convenient, the positioning is reliable, the operation is convenient, hot air flows, and deformation memory palpus bends, and a gap is generated, the magnetic shielding of the magnet block is cancelled, and the positioning block is tightly fixed in the opening by matching with the locking of the phase change memory ring.
Description
Technical Field
The invention relates to the field of offset printing equipment, in particular to an automatic locking and positioning device for a sleeve type plate cylinder of an offset printing machine.
Background
The plate cylinder of offset printing equipment mainly has two structures, the first is that the diameter of the plate cylinder is not changed, the plate shaft and the plate cylinder are in an integral structure, the plate cylinder is mostly used on intermittent offset printing machine equipment, the second is that the plate shaft and the printing cylinder are in a split design, the plate cylinder is in a sleeve type structure, the plate cylinder is convenient to insert into the plate shaft and mutually matched for printing, the diameter of the plate cylinder can be changed, the plate cylinder is suitable for the length change of printed patterns, and the structure is mainly used in continuous high-speed offset printing machines.
For the offset press of telescopic plate cylinder structure, plate cylinder mainly holds the shaft of the printing plate and positions through the elastic layer that relies on cylinder inside among the prior art, because the elastic layer holds the power limitedly, can hold after repetitious usage not tightly, make axial positioning unreliable, the plate cylinder can take place axial displacement under the effect of printing pressure, or under the axial force effect that axial registration was adjusted, accurate register position of the different colour overprints of a plurality of printing units when influencing polychrome printing.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide an automatic locking and positioning device for a sleeve type printing plate cylinder of an offset press, which can realize that when the printing plate cylinder body is arranged, one part of air flow in a main air passage enters an expanding air passage to expand an elastic layer of the printing plate sleeve, the other part of air flow enters a bolt air cavity, bolts at two sides are pushed by air pressure to respectively move outwards, a positioning block can be inserted into a fixed block, after the printing plate cylinder body is arranged in place, an air source is closed, the elastic layer of the printing plate sleeve still holds a printing plate shaft tightly, air pressure in the bolt air cavity disappears, the bolts are pushed to move inwards by the elastic action of a telescopic spring and are locked in a hook groove inserted into the positioning block to play a role in axial positioning, meanwhile, the rotary connection and the matching of the positioning block and the fixed block also play a role in circumferential tangential positioning, so that the automatic locking and positioning device is convenient to adjust, reliable in positioning and convenient to operate, and in the printing process, the hot air flows to the periphery of the deformation memory tentacles along with the flowing of the hot air, so that the deformation memory tentacles are heated and bent to generate gaps, the magnetic shielding of the magnet block is cancelled, meanwhile, the phase change memory ring is heated and contracted, the positioning block is locked, and under the attraction of the magnet block, the positioning block is pulled to be tightly fixed in the opening, so that the fixing effect is enhanced.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
An automatic locking and positioning device for a sleeve type printing plate cylinder of an offset press comprises a left side rolling pillow, wherein the right end of the left side rolling pillow is fixedly connected with a printing plate cylinder body, the inner wall of the printing plate cylinder body is fixedly connected with a printing plate sleeve elastic layer, a printing plate shaft is arranged in the printing plate cylinder body, the right end of the printing plate cylinder body is fixedly connected with a right side rolling pillow, the outer end of the printing plate shaft is fixedly connected with a positioning pin, the outer end of the right side rolling pillow is provided with a positioning notch in a chiseling mode, a main air channel is chiseled in the printing plate shaft, an expansion air channel is arranged in the printing plate shaft and communicated with the expansion air channel, the expansion air channel is communicated with the outer side of the printing plate shaft, the outer end of the right side rolling pillow is rotatably connected with a positioning block, the outer end of the printing plate shaft is rotatably connected with a fixed block, and the outer end of the fixed block is provided with an opening in a chiseling mode, the opening of the fixing block is matched with the positioning block, two bolts are arranged on the fixing block, a telescopic spring is fixedly connected between each bolt and the fixing block, two pressing plates are fixedly connected at the outer end of the fixing block, two hook grooves are formed in the positioning block, the bolts are matched with the hook grooves, a bolt air cavity is arranged between each bolt and the main air channel, the main air channel is communicated with the bolt air cavity, a first sealing ring is arranged between the main air channel and the bolt air cavity, a second sealing ring and a third sealing ring are respectively arranged between each bolt and the fixing block, a connecting block is arranged on the outer side of the printing plate shaft, a positioning key is fixedly connected at the outer end of the connecting block, the connecting block is fixedly connected with the printing plate shaft and the fixing block through the positioning key, and when the printing plate cylinder body is installed, a part of air flow in the main air channel enters the expansion air channel to expand the elastic layer of the printing plate sleeve, the other part gets into the bolt air cavity, the bolt that pushes both sides under the atmospheric pressure effect moves to the outside respectively, the locating piece alright in inserting the fixed block well shed, the printing plate cylinder body packs into the back in place, after closing the air supply, the printing plate axle is still held tightly to the printing plate sleeve elastic layer, the atmospheric pressure disappears in the bolt air cavity, the extrusion bolt is moved to the inboard under expanding spring's elastic action, the hook inslot locking of inserting the locating piece, play the axial positioning effect, and simultaneously, the locating piece is connected and has also played circumference tangential location with the cooperation with the rotation of fixed block, convenient regulation, the location is reliable, and convenient operation.
Furthermore, a fixing plate is fixedly connected between the inner walls of the openings, an insulating frame is fixedly connected at the outer end of the fixing plate, a magnet block is fixedly connected to the inner wall of the insulating frame, a conduction opening is formed in the outer end of the insulating frame, a plurality of deformation memory tentacles which are uniformly distributed are arranged on the inner wall of the conduction opening and are in close contact with each other, a magnetic insulating layer is arranged on the surface of each deformation memory tentacle, a flexible cover is fixedly connected to the outer end of the fixing block, a phase change memory ring is sleeved at the outer end of the positioning block, the right end of the phase change memory ring is fixedly connected with the left end of the flexible cover, and in the rotating printing process of the plate cylinder body and the plate shaft, hot air flows along with the rise of temperature to enable the plurality of deformation memory tentacles to be heated and deformed to generate gaps among the plurality of deformation memory tentacles which are close to each other, at the moment, the magnetic insulating layer and the magnetic insulating frame are not in a closed state any more, the magnetic shielding of the magnet block is cancelled, the phase change memory ring is heated and contracted, the positioning block is locked, and under the attraction of the magnet block, the positioning block is pulled to be tightly fixed in the opening, so that the fixing effect is enhanced.
Furthermore, the outer ends of the bolt and the phase change memory ring are coated with magnetic layers, the magnetic layers are made of magnetic powder materials, the magnetic layers are arranged, after the magnetic shielding of the magnet block is cancelled, the magnet block is tightly fixed in the hook groove under the attraction effect of the magnetic layers, the possibility that the magnet block is loosened due to the elastic effect of the expansion spring is reduced, and meanwhile, the phase change memory ring is attracted to pull the positioning block to be tightly fixed in the opening, so that the fixing effect is enhanced.
Further, the magnetic insulation frame and the magnetic insulation layer are both made of Fe-Ni alloy materials, the content of Ni in the magnetic insulation frame and the magnetic insulation layer is 80%, and the magnetic properties of the magnet block can be effectively shielded in a closed state by using the magnetic insulation frame and the magnetic insulation layer made of the Fe-Ni alloy materials.
Further, the deformation memory tentacles and the phase change memory rings are both made of shape memory high polymer materials, the initial state of the deformation memory tentacles is a folded polymerization state, the initial state of the phase change memory rings is an expansion state, the deformation memory tentacles and the phase change memory rings made of the shape memory high polymer materials deform and bend after the temperature rises, gaps are formed among a plurality of mutually compact deformation memory tentacles, the deformation memory tentacles and the phase change memory rings are in a vertical state after the temperature drops and return to the folded polymerization state, the phase change memory rings contract, the positioning blocks are locked, and the positioning blocks return to the initial expansion state after the temperature drops.
Furthermore, the initial state of flexible cover is the state of straightening, the outer end of flexible cover is equipped with the lotus leaf membrane, and flexible cover is under the pulling of phase change memory ring, by the initial state of straightening shrink into the ripple state, and at the setting of lotus leaf membrane, realizes simulating into the shape on lotus leaf surface in the outer end of flexible cover, makes the dust be difficult for being stained with and attaches to it, dredges away fast.
Furthermore, the inner wall of the phase change memory ring is fixedly connected with an elastic ferrule, the inner wall of the elastic ferrule is provided with a wear-resistant layer, the elastic ferrule is arranged to play a role in buffering when the phase change memory ring contracts and locks the positioning block, so that the phase change memory ring and the positioning block are not easily damaged, and the wear-resistant layer is arranged to ensure that the phase change memory ring is not easily worn in the locking process and the service life of the phase change memory ring is prolonged.
Furthermore, the telescopic spring is made of stainless steel materials, an anti-rust layer is arranged on the surface of the telescopic spring, the telescopic spring made of the stainless steel materials is provided with the anti-rust layer, so that the telescopic spring is not easy to rust in a long-term use process, and the service life of the telescopic spring is prolonged.
Furthermore, the lotus leaf membrane is made of a PET raw membrane material, the surface of the lotus leaf membrane is provided with the AS oleophobic and hydrophobic coating, and the lotus leaf membrane made of the PET raw membrane material is provided with the AS oleophobic and hydrophobic coating, so that dirt such AS printing ink, water, dust and the like can be effectively resisted, the lotus leaf membrane is quickly dredged out, and the self-cleaning effect is achieved.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) this scheme can realize when packing into the plate cylinder body, the air current in the main air duct partly gets into the air flue that expands and open printing plate sleeve elastic layer, another part gets into the bolt air cavity, the bolt that pushes both sides under the atmospheric pressure effect moves to the outside respectively, the locating piece alright in inserting the fixed block in the opening, the plate cylinder body packs into the back of targetting in place, after closing the air supply, the printing plate sleeve elastic layer still holds the printing plate axle tightly, air pressure disappears in the bolt air cavity, the inboard action of extrusion bolt under expanding spring's elastic action, insert the hook inslot locking of locating piece, play the axial positioning effect, simultaneously, the locating piece has also played circumference tangential location with the cooperation with the rotation of fixed block, convenient regulation, the location is reliable, and convenient for operation.
(2) The fixing plate is fixedly connected between the inner walls of the openings, the outer end of the fixing plate is fixedly connected with a magnetic insulating frame, the inner wall of the magnetic insulating frame is fixedly connected with a magnet block, the outer end of the magnetic insulating frame is provided with a conduction opening, a plurality of deformation memory tentacles are uniformly distributed on the inner wall of the conduction opening and are in close contact with each other, the surface of each deformation memory tentacle is provided with a magnetic insulating layer, the outer end of the fixing block is fixedly connected with a telescopic flexible cover, the outer end of the positioning block is sleeved with a phase change memory ring, the right end of the phase change memory ring is fixedly connected with the left end of the telescopic flexible cover, and in the rotating printing process of the printing plate roller body and the printing plate shaft, along with temperature rise, hot air flows to enable the plurality of deformation memory tentacles to be deformed and bent, gaps are generated between the plurality of mutually close deformation memory tentacles, and the magnetic insulating layer and the magnetic insulating frame are not in a closed state any more, the magnetic shielding of the magnet block is cancelled, the phase change memory ring is heated to shrink, the positioning block is locked, and under the attraction of the magnet block, the positioning block is pulled to be tightly fixed in the opening, so that the fixing effect is enhanced.
(3) The outer ends of the bolt and the phase change memory ring are coated with magnetic layers, the magnetic layers are made of magnetic powder materials, and through the arrangement of the magnetic layers, after the magnetic shielding of the magnet block is cancelled, the magnet block is tightly fixed in the hook groove under the attraction effect of the magnetic layer, so that the possibility of looseness caused by the elastic effect of the expansion spring is reduced, and meanwhile, the phase change memory ring is attracted to pull the positioning block to be tightly fixed in the opening, so that the fixing effect is enhanced.
(4) The magnetic insulation frame and the magnetic insulation layer are both made of Fe-Ni alloy materials, the Ni content in the magnetic insulation frame and the magnetic insulation layer is 80%, and the magnetism of the magnet block can be effectively shielded in a closed state by using the magnetic insulation frame and the magnetic insulation layer made of the Fe-Ni alloy materials.
(5) The deformation memory tentacles and the phase change memory rings are both made of shape memory high polymer materials, the initial state of the deformation memory tentacles is a folded polymerization state, the initial state of the phase change memory rings is an expansion state, the deformation memory tentacles can deform and bend after the temperature of the deformation memory tentacles and the phase change memory rings made of the shape memory high polymer materials rises, gaps are formed among a plurality of mutually compact deformation memory tentacles, the deformation memory tentacles begin to be in a vertical state after the temperature of the deformation memory tentacles drops, the deformation memory tentacles are restored to the folded polymerization state, the phase change memory rings shrink, the positioning blocks are locked, and the deformation memory tentacles are restored to the initial expansion state after the temperature drops.
(6) The initial state of flexible cover is the state of straightening, and the outer end of flexible cover is equipped with the lotus leaf membrane, and flexible cover is under the pulling of phase change memory ring, by the initial state of straightening shrink into the ripple state, and at the setting of lotus leaf membrane, realizes simulating into the shape on lotus leaf surface in the outer end of flexible cover, makes the dust be difficult for being stained with and attaches to it, dredges away fast.
(7) The inner wall fixedly connected with elasticity lasso of phase change memory ring, the inner wall of elasticity lasso is equipped with the wearing layer, through the setting of elasticity lasso, plays the effect of buffering when making phase change memory ring shrink locking locating piece, makes both difficult emergence damage, and the setting of wearing layer makes it difficult emergence wearing and tearing in locking process, prolongs its life.
(8) The telescopic spring is made of stainless steel materials, the surface of the telescopic spring is provided with an anti-rust layer, the telescopic spring made of the stainless steel materials is provided with the anti-rust layer, so that the telescopic spring is not easy to rust in a long-term use process, and the service life of the telescopic spring is prolonged.
(9) The lotus leaf membrane is made of a PET (polyethylene terephthalate) original membrane material, the surface of the lotus leaf membrane is provided with the AS oleophobic and hydrophobic coating, and the lotus leaf membrane made of the PET original membrane material is provided with the AS oleophobic and hydrophobic coating, so that the lotus leaf membrane can effectively resist dirt such AS printing ink, water, dust and the like, is quickly dredged, and achieves the self-cleaning effect.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic side view of the cross-sectional structure of the present invention;
FIG. 3 is a schematic view of a partial cross-sectional structure of a fixing block according to the present invention;
FIG. 4 is a cross-sectional view of a phase change memory ring according to the present invention;
FIG. 5 is a diagram of the dynamic transformation of the deformed memory antenna according to the present invention;
FIG. 6 is a dynamic transition diagram of the retractable flexible cover of the present invention when retracted;
fig. 7 is a schematic perspective view of the telescopic flexible cover of the present invention.
The reference numbers in the figures illustrate:
1. the left side rolls the pillow; 2. a plate sleeve elastomeric layer; 3. a plate cylinder body; 4. a plate shaft; 401. a main air passage; 402. expanding the air passage; 5. the right side rolls the pillow; 6. positioning pins; 7. positioning blocks; 8. a bolt; 801. a bolt air cavity; 9. a first seal ring; 10. a positioning key; 11. connecting blocks; 12. a third seal ring; 13. a tension spring; 14. pressing; 15. a fixed block; 16. a second seal ring; 17. a magnetic insulation frame; 18. a magnet block; 19. a shape-changing memory tentacle; 20. a flexible cover; 21. a phase change memory loop; 2101. an elastic ferrule; 22. a lotus leaf membrane.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
Example (b):
referring to fig. 1-2, an automatic locking and positioning device for a sleeve-type plate cylinder of an offset printing machine comprises a left rolling pillow 1, a plate cylinder body 3 is fixedly connected to the right end of the left rolling pillow 1, a plate sleeve elastic layer 2 is fixedly connected to the inner wall of the plate cylinder body 3, a plate shaft 4 is arranged in the plate cylinder body 3, a right rolling pillow 5 is fixedly connected to the right end of the plate cylinder body 3, a positioning pin 6 is fixedly connected to the outer end of the plate shaft 4, a positioning notch is formed in the outer end of the right rolling pillow 5, the positioning pin 6 is matched with the positioning notch, a main air channel 401 is formed in the plate shaft 4, an expanding air channel 402 is formed in the plate shaft 4, the main air channel 401 is communicated with the expanding air channel 402, the expanding air channel 402 is communicated with the outer side of the plate shaft 4, a positioning block 7 is rotatably connected to the outer end of the right rolling pillow 5, a fixing block 15 is rotatably connected to the outer end of the plate shaft 4, an opening is chiseled at the outer end of a fixed block 15 and is matched with a positioning block 7, two bolts 8 are arranged on the fixed block 15, an expansion spring 13 is fixedly connected between each bolt 8 and the fixed block 15, two pressing plates 14 are fixedly connected at the outer end of the fixed block 15, two hook grooves are chiseled on the positioning block 7, the bolts 8 are matched with the hook grooves, a bolt air chamber 801 is arranged between each bolt 8 and a main air channel 401, the main air channel 401 is communicated with the bolt air chamber 801, a first sealing ring 9 is arranged between each main air channel 401 and the corresponding bolt air chamber 801, a second sealing ring 16 and a third sealing ring 12 are respectively arranged between each bolt 8 and the corresponding fixed block 15, a connecting block 11 is arranged on the outer side of a printing plate shaft 4, a positioning key 10 is fixedly connected at the outer end of the connecting block 11, the connecting block 11 is respectively fixedly connected with the printing plate shaft 4 and the fixed block 15 through the positioning key 10, when the printing plate cylinder body 3 is installed, a part of air flow in the main air channel 401 enters an expanding air channel 402 to expand printing plate sleeve elastic layer 2, the other part gets into bolt air cavity 801, the bolt 8 that pushes both sides under the atmospheric pressure effect moves to the outside respectively, locating piece 7 alright in inserting the opening in fixed block 15, plate cylinder body 3 packs into the back in place, after closing the air supply, plate sleeve elastic layer 2 still holds tightly printing shaft 4, the atmospheric pressure disappears in bolt air cavity 801, extrude bolt 8 to move to the inside under the elastic action of expanding spring 13, insert the hook inslot locking of locating piece 7, play the axial positioning effect, locating piece 7 has also played circumference tangential location with the rotation of fixed block 15 is connected and the cooperation simultaneously, convenient regulation, the location is reliable, and convenient for operation.
Referring to fig. 3-7, a fixing plate is fixedly connected between the inner walls of the openings, an insulating frame 17 is fixedly connected at the outer end of the fixing plate, a magnet block 18 is fixedly connected to the inner wall of the insulating frame 17, a conduction opening is drilled at the outer end of the insulating frame 17, a plurality of deformation memory whiskers 19 are uniformly distributed on the inner wall of the conduction opening, the plurality of deformation memory whiskers 19 are in close contact with each other, a magnetic insulating layer is arranged on the surface of the deformation memory whiskers 19, a flexible cover 20 is fixedly connected at the outer end of the fixing block 15, a phase change memory ring 21 is sleeved at the outer end of the positioning block 7, the right end of the phase change memory ring 21 is fixedly connected with the left end of the flexible cover 20, and in the rotating printing process of the plate cylinder body 3 and the plate shaft 4, as the temperature rises, hot air flows, the plurality of deformation memory whiskers 19 are heated and deformed, gaps are generated between the plurality of deformation memory whiskers 19 which are close to each other, at the moment, the magnetic insulating layer and the magnetic insulating frame 17 are not in a closed state any more, the magnetic shielding of the magnet block 18 is cancelled, meanwhile, the phase change memory ring 21 is heated and contracted, the positioning block 7 is locked, and the positioning block 7 is pulled to be tightly fixed in the opening under the attraction of the magnet block 18, so that the fixing effect is enhanced.
Referring to fig. 3, the outer ends of the plug pin 8 and the phase change memory ring 21 are coated with magnetic layers made of magnetic powder materials, the magnetic layers are arranged to be tightly fixed in the hook grooves under the attraction action after the magnetic shielding of the magnet block 18 is cancelled, the possibility of looseness of the magnet block due to the elastic action of the expansion spring 13 is reduced, meanwhile, the phase change memory ring 21 is attracted to pull the positioning block 7 to be tightly fixed in the opening, the fixing effect is enhanced, the magnetic insulating frame 17 and the magnetic insulating layer are made of Fe-Ni alloy materials, the content of Ni in the magnetic insulating frame 17 and the magnetic insulating layer is 80%, and the magnetic insulating frame 17 and the magnetic insulating layer made of Fe-Ni alloy materials can effectively shield the magnetism of the magnet block 18 in a closed state.
Referring to fig. 3-7, the shape-change memory tentacle 19 and the phase-change memory loop 21 are both made of shape-memory polymer, the initial state of the shape-change memory tentacle 19 is a folded polymerization state, the initial state of the phase-change memory loop 21 is an expansion state, when the temperature of the shape-change memory tentacle 19 and the phase-change memory loop 21 made of the shape-memory polymer is increased, the shape-change memory tentacle 21 will be deformed and bent, so that a gap is formed between the plurality of shape-change memory tentacles 19 that are close to each other, and when the temperature is decreased, the shape-change memory tentacle 21 will be in a vertical state and return to the folded polymerization state, and the phase-change memory loop 21 will contract, lock the positioning block 7, and return to the initial expansion state after the temperature is decreased, the initial state of the flexible cover 20 is a stretched state, the outer end of the flexible cover 20 is provided with the lotus leaf 22, and the flexible cover 20 is pulled by the phase-change memory loop 21, by initial state of straightening shrink into the ripple state, and at the setting of lotus leaf membrane 22, realize simulating into the shape on lotus leaf surface at the outer end of flexible cover 20, make the dust be difficult for being stained with and attach to it, dredge out fast, the inner wall fixedly connected with elasticity lasso 2101 of phase change memory ring 21, the inner wall of elasticity lasso 2101 is equipped with the wearing layer, setting through elasticity lasso 2101, play the effect of buffering when making phase change memory ring 21 shrink locking locating piece 7, make both difficult emergence damage, and the setting of wearing layer, make it difficult emergence wearing and tearing in locking process, prolong its life.
Referring to fig. 2-7, the extension spring 13 is made of stainless steel, the surface of the extension spring 13 is provided with an anti-rust layer, the extension spring 13 made of stainless steel is provided with the anti-rust layer, so that the extension spring is not easy to rust in a long-term use process, the service life of the extension spring is prolonged, the lotus leaf membrane 22 is made of a PET original membrane material, the surface of the lotus leaf membrane 22 is provided with an AS oleophobic and hydrophobic coating, and the lotus leaf membrane 22 made of the PET original membrane material is provided with the AS oleophobic and hydrophobic coating, so that the lotus leaf membrane can effectively resist dirt such AS ink, water, dust and the like, and can be quickly dredged out to achieve a self-cleaning effect.
In the invention, when a related technician is used, firstly, when the printing plate cylinder body 3 is loaded, one part of air flow in the main air passage 401 enters the expanding air passage 402 to expand the elastic layer 2 of the printing plate sleeve, the other part of air flow enters the bolt air chamber 801, the bolts 8 at two sides are pushed by air pressure to respectively move outwards, the positioning block 7 can be inserted into an opening in the fixing block 15, after the printing plate cylinder body 3 is loaded in place, after an air source is closed, the elastic layer 2 of the printing plate sleeve still holds the printing plate shaft 4 tightly, the air pressure in the bolt air chamber 801 disappears, the bolts 8 are pushed inwards by the elastic action of the expansion spring 13 to be locked in a hook groove inserted into the positioning block 7 to play a role in axial positioning, meanwhile, the rotary connection and the matching of the positioning block 7 and the fixing block 15 also play a role in circumferential tangential positioning, the regulation is convenient, the positioning is reliable, the operation is convenient, and in the rotary printing process of the printing plate cylinder body 3 and the printing plate shaft 4, along with the temperature rise, in the process of rotating and printing the plate cylinder body 3 and the plate shaft 4, along with the temperature rise, hot air flows, the deformation memory tentacles 19 are promoted to be heated and deformed to be bent, gaps are generated between the deformation memory tentacles 19 which are mutually close, the magnetic insulating layer and the magnetic insulating frame 17 are not in a closed state any more, the magnetic shielding of the magnet block 18 is cancelled, meanwhile, the phase change memory ring 21 is heated and contracted, the positioning block 7 is locked, and under the attraction of the magnet block 18, the positioning block 7 is pulled to be tightly fixed in the opening, so that the fixing effect is enhanced.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (9)
1. The utility model provides an automatic locking positioner of telescopic forme cylinder of offset press, includes left side bearer bar (1), its characterized in that: the right end of the left side bolster (1) is fixedly connected with a printing plate cylinder body (3), the inner wall of the printing plate cylinder body (3) is fixedly connected with a printing plate sleeve elastic layer (2), a printing plate shaft (4) is arranged in the printing plate cylinder body (3), the right end of the printing plate cylinder body (3) is fixedly connected with a right side bolster (5), the outer end of the printing plate shaft (4) is fixedly connected with a positioning pin (6), the outer end of the right side bolster (5) is provided with a positioning notch, the positioning pin (6) is matched with the positioning notch, a main air channel (401) is arranged in the printing plate shaft (4), an expansion air channel (402) is arranged in the printing plate shaft (4), the main air channel (401) is communicated with the expansion air channel (402), the expansion air channel (402) is communicated with the outer side of the printing plate shaft (4), the outer end of the right side bolster (5) is rotatably connected with a positioning block (7), the outer end of the printing plate shaft (4) is rotatably connected with a fixed block (15), an opening is formed in the outer end of the fixed block (15) and is matched with the positioning block (7), two bolts (8) are arranged on the fixed block (15), a telescopic spring (13) is fixedly connected between each bolt (8) and the corresponding fixed block (15), two pressing plates (14) are fixedly connected to the outer end of each fixed block (15), hook grooves are machined in the corresponding positioning block (7), the bolts (8) are matched with the hook grooves, a bolt air cavity (801) is formed between each bolt (8) and the corresponding main air channel (401), the corresponding main air channel (401) is communicated with the corresponding bolt air cavity (801), a first sealing ring (9) is arranged between each main air channel (401) and the corresponding bolt air cavity (801), and second sealing rings (16) and third sealing rings (12) are respectively arranged between each bolt (8) and the corresponding fixed block (15), the outer side of the printing plate shaft (4) is provided with a connecting block (11), the outer end of the connecting block (11) is fixedly connected with a positioning key (10), and the connecting block (11) is fixedly connected with the printing plate shaft (4) and a fixing block (15) through the positioning key (10).
2. An automatic locking and positioning device for a sleeve-type plate cylinder of an offset printing press according to claim 1, characterized in that: fixedly connected with fixed plate between the open-ended inner wall, the outer end fixedly connected with insulating magnetic frame (17) of fixed plate, the inner wall fixedly connected with magnet piece (18) of insulating magnetic frame (17), the outer end of insulating magnetic frame (17) is cut and is had the conduction opening, a plurality of evenly distributed's of inner wall deformation memory palpus (19) of conduction opening, and a plurality of deformation memory palpus (19) each other in close contact with, the surface of deformation memory palpus (19) is equipped with insulating magnetic layer, the flexible cover (20) of outer end fixedly connected with of fixed block (15), the outer pot head of locating piece (7) is equipped with phase change memory ring (21), the right-hand member of phase change memory ring (21) and the left end fixed connection of flexible cover (20).
3. An automatic locking and positioning device for a sleeve-type plate cylinder of an offset printing press according to claim 1, characterized in that: the outer ends of the bolt (8) and the phase change memory ring (21) are coated with magnetic layers, and the magnetic layers are made of magnetic powder materials.
4. An automatic locking and positioning device for a sleeve-type plate cylinder of an offset printing press according to claim 2, characterized in that: the magnetic insulation frame (17) and the magnetic insulation layer are both made of Fe-Ni alloy materials, and the content of Ni in the magnetic insulation frame (17) and the magnetic insulation layer is 80%.
5. An automatic locking and positioning device for a sleeve-type plate cylinder of an offset printing press according to claim 2, characterized in that: the deformation memory tentacles (19) and the phase change memory rings (21) are both made of shape memory polymer materials, the initial state of the deformation memory tentacles (19) is a furled polymerization state, and the initial state of the phase change memory rings (21) is an expansion state.
6. An automatic locking and positioning device for a sleeve-type plate cylinder of an offset printing press according to claim 2, characterized in that: the initial state of flexible cover (20) is the state of straightening, the outer end of flexible cover (20) is equipped with lotus leaf membrane (22).
7. An automatic locking and positioning device for a sleeve-type plate cylinder of an offset printing press according to claim 2, characterized in that: the inner wall of the phase change memory ring (21) is fixedly connected with an elastic ferrule (2101), and the inner wall of the elastic ferrule (2101) is provided with a wear-resistant layer.
8. An automatic locking and positioning device for a sleeve-type plate cylinder of an offset printing press according to claim 1, characterized in that: the telescopic spring (13) is made of stainless steel materials, and an anti-rust layer is arranged on the surface of the telescopic spring (13).
9. An automatic locking and positioning device for a sleeve-type plate cylinder of an offset printing press according to claim 6, characterized in that: the lotus leaf membrane (22) is made of PET raw membrane materials, and an AS oleophobic and hydrophobic coating is arranged on the surface of the lotus leaf membrane (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111542954.1A CN114103433B (en) | 2021-12-16 | 2021-12-16 | Automatic locking and positioning device for sleeve type plate cylinder of offset press |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111542954.1A CN114103433B (en) | 2021-12-16 | 2021-12-16 | Automatic locking and positioning device for sleeve type plate cylinder of offset press |
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| Publication Number | Publication Date |
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| CN114103433A CN114103433A (en) | 2022-03-01 |
| CN114103433B true CN114103433B (en) | 2022-09-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111542954.1A Active CN114103433B (en) | 2021-12-16 | 2021-12-16 | Automatic locking and positioning device for sleeve type plate cylinder of offset press |
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Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1581232A (en) * | 1976-01-08 | 1980-12-10 | Drg Uk Ltd | Printing roll with detachable sleeve and method of fitting that sleeve |
| US5904095A (en) * | 1997-03-19 | 1999-05-18 | Meca Of Green Bay, Inc. | Bridge mandrel for flexographic printing presses |
| US6276271B1 (en) * | 2000-03-17 | 2001-08-21 | Day International, Inc. | Bridge mandrel for flexographic printing systems |
| WO2009107706A1 (en) * | 2008-02-28 | 2009-09-03 | ユニバーサル製缶株式会社 | Printing plate cylinder, printing apparatus, and method for producing printing plate cylinder |
| PL3243660T3 (en) * | 2016-05-09 | 2019-03-29 | Flint Group Germany Gmbh | Cylinder with partially gas-permeable surface |
| CN108928096B (en) * | 2018-07-24 | 2020-05-29 | 安徽辉盛机电科技股份有限公司 | Wallpaper printing carrier roller device |
| CN110639447A (en) * | 2019-09-20 | 2020-01-03 | 南京思甲宁新材料科技有限公司 | Reaction equipment for preparing new material |
| CN211187217U (en) * | 2019-09-27 | 2020-08-07 | 宋博 | Medical electronic sphygmomanometer |
| CN112549769A (en) * | 2020-11-25 | 2021-03-26 | 尹榕 | Printing plate fixing device for printing machine |
| CN214821714U (en) * | 2021-04-15 | 2021-11-23 | 江苏金叶胶辊有限公司 | Printing rubber roll with rubber roll sleeve and roll shaft capable of being split |
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