Plate roller sleeve installing and positioning mechanism of printing equipment

Abstract

The utility model relates to a plate roller sleeve mounting and positioning mechanism of printing equipment, which is characterized in that a cylinder sleeving mounting position is reserved on a plate roller shaft, a detachable blocking and positioning part for blocking the position of a cylinder and a shaft-moving ejection elastic part for ejecting the position of the cylinder are arranged on the plate roller shaft, the blocking and positioning part is arranged at the front end of the cylinder sleeving mounting position, and the ejection elastic part is arranged at the front end of the cylinder sleeving mounting position. And the pushing elastic component is arranged at the rear end of the sleeving mounting position of the cylinder body, the pushing elastic component is provided with an axial displacement driving mechanism, the axial displacement driving mechanism is arranged on the printing roller shaft, and the axial displacement driving mechanism is connected with the pushing elastic component. The plate roller cylinder is relatively convenient to disassemble and assemble on the plate roller shaft, the pushing and tightening component is matched for jacking, fixing and releasing, and the blocking and positioning component only needs to be disassembled and assembled at the front side position, so that the component is disassembled and assembled at the blocking position; no extra operation (such as tightening operation) is needed for the blocking and positioning part, and the problems that thread tightening is not convenient, tightening is not easy, loosening is prone to occurring, threads are loosened, inaccuracy is caused, and stress is unbalanced are solved.

Description

Technical Field

[0001] The utility model relates to printing equipment, in particular to a printing plate roller installation structure. Background Art

[0002] Printing equipment generally has a plate roller to cooperate with printing operations, such as the plate roller in the offset printing mechanism, the transfer roller, and the impression roller to cooperate with the printing operation. The plate roller usually has a roller shaft (or plate roller shaft) and a roller (or plate roller). The roller is mounted on the roller shaft and fixed to each other, and the roller shaft can drive the roller to rotate to cooperate with printing; in addition, different print lengths require the replacement of plate rollers with different circumferences, and the roller needs to be frequently disassembled from the roller shaft for replacement or maintenance. Therefore, a mounting structure is required to realize the installation of the plate roller on the roller shaft; in addition, the convenience of the plate roller disassembly and assembly structure on the roller shaft is crucial, and the use of threaded tightening has many problems. Utility Model Content

[0003] In view of the technical problems existing in the background technology, the technical problem solved by the utility model is to provide a printing roller sleeve installation and positioning mechanism for a printing device which is optional and can realize the installation and disassembly of the printing roller on the printing roller shaft.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a plate roller sleeve installation and positioning mechanism of a printing equipment includes a plate roller shaft, and a cylinder sleeve installation position is reserved on the plate roller shaft, which is characterized in that the front end of the plate roller shaft is a cylinder sleeve disassembly and installation end, and the plate roller shaft is provided with a detachable blocking and positioning component for blocking the cylinder position and an axially movable pushing and tightening component for pushing the cylinder position, the blocking and positioning component is arranged at the front end of the cylinder sleeve installation position, the pushing and tightening component is arranged at the rear end of the cylinder sleeve installation position, the pushing and tightening component is equipped with an axial displacement driving mechanism, the axial displacement driving mechanism is arranged on the plate roller shaft, and the axial displacement driving mechanism is transmission-connected to the pushing and tightening component.

[0005] The following various optimizations or supplementary explanations can be made on the above technical solutions respectively.

[0006] For example, the plate roller shaft is sleeved in the support sleeve, and a bearing is provided between the plate roller shaft and the support sleeve; the rear part of the plate roller shaft is connected to the support sleeve, and the cylinder sleeve installation position is set on the front side of the support sleeve.

[0007] In addition, the front end and the rear end of the plate roller are respectively provided with matching parts for installation; the matching parts are set as the inner conical surface of the port, or the matching parts are set as the step port.

[0008] For another example, the blocking and positioning component includes a blocking and positioning sleeve.

[0009] For example, the blocking and positioning sleeve has an inner ring, and the inner ring of the blocking and positioning sleeve is arranged outside the plate roller shaft; the blocking and positioning sleeve has a blocking and positioning part. The blocking and positioning part adopts a blocking and positioning outer cone surface, which is located on the outer ring of the blocking and positioning sleeve, and the blocking and positioning outer cone surface matches the inner cone surface of the port of the plate roller; or the blocking and positioning part adopts a blocking and positioning step cylinder, and the blocking and positioning step cylinder matches the step port of the plate roller.

[0010] In addition, the blocking and positioning component also includes a disassembly and assembly coupling sleeve, which is connected to the disassembly and assembly coupling sleeve to form a combined sleeve, and the disassembly and assembly coupling sleeve is connected to the front side of the blocking and positioning sleeve, and the inner ring of the disassembly and assembly coupling sleeve is provided with an inner convex locking block, and the inner ring of the disassembly and assembly coupling sleeve is arranged on the plate roller shaft, and the front end of the plate roller shaft is provided with an entry groove for the inner convex locking block to enter, and the plate roller shaft is also provided with a locking block circumferential displacement groove, and the locking block circumferential movement groove is connected with the entry groove, and the front side wall of the locking block circumferential displacement groove is a locking block retreat limit portion; a locking block limit recess is provided on the locking block retreat limit portion; and the entry groove is axially arranged.

[0011] For another example, the push-up elastic component includes a push-up elastic sleeve.

[0012] For example, the push-up elastic sleeve has an inner ring, and the inner ring of the push-up elastic sleeve is sleeved outside the plate roller shaft. The push-up elastic sleeve has a push-up elastic portion. The push-up elastic portion adopts a push-up elastic outer conical surface, which is located on the outer ring of the push-up elastic sleeve, and the push-up elastic outer conical surface matches the inner conical surface of the port of the plate roller; or, the push-up elastic portion adopts a push-up elastic step cylinder, and the push-up elastic step cylinder matches the step port of the plate roller.

[0013] In addition, the axial displacement driving mechanism includes an air duct, an air chamber, an annular piston, a pressure spring and a spring seat. The air duct is connected to the air chamber, and the air chamber is arranged around the circumferential periphery of the plate roller shaft. The annular piston is fitted on the plate roller shaft. The plate roller shaft has a position for axial movement of the annular piston. The air chamber and the pressure spring are respectively arranged on the front and rear sides of the annular piston. The pushing and tensioning component is connected to the annular piston. The pushing and tensioning component is located on the front side of the annular piston. The spring seat is connected to the plate roller shaft, and the pressure spring is arranged between the spring seat and the annular piston.

[0014] Further optimization, the air duct is built into the plate roller shaft; the plate roller shaft sleeve is arranged in the support sleeve; an air path rotary joint for connecting the air duct is arranged on the plate roller shaft; or, an air inlet is arranged on the support sleeve, and an annular air path is also arranged between the plate roller shaft and the support sleeve, the air inlet is connected with the annular air path, a lateral air hole is arranged on the plate roller shaft, the lateral air hole is connected with the air duct, the lateral air hole is connected with the annular air path, the support sleeve and the plate roller shaft are also provided with a front seal and a rear seal, the annular air path is located between the front seal and the rear seal; the air chamber is an annular air chamber; the annular piston is arranged at the rear part of the air chamber, the pressure spring is arranged on the rear side of the annular piston, a first seal is arranged between the annular piston and the plate roller shaft, a push-up tension component is arranged around the circumference of the air chamber, and a first push-up tension component is arranged between the plate roller shaft Two sealing members, the front side of the air chamber is a raised step portion of the plate roller shaft; the spring seat includes a fixed sleeve and an adjusting sleeve, the fixed sleeve is fixedly connected to the plate roller shaft, the adjusting sleeve is sleeved outside the fixed sleeve, one end of the pressure spring is connected to the adjusting sleeve, and the other end of the pressure spring is connected to the push-up tensioning component; the adjusting sleeve and the fixed sleeve are screwed together to adjust the axial front and rear position; the push-up tensioning component also includes a transmission enclosure sleeve, the transmission enclosure sleeve is transmission-connected with the push-up tensioning sleeve, the push-up tensioning sleeve is in front of the transmission enclosure sleeve, the transmission enclosure sleeve is sleeved on the plate roller shaft and surrounds the circumferential periphery of the air chamber, and the second sealing member is arranged between the transmission enclosure sleeve and the plate roller shaft; the push-up tensioning component is integrally connected with the annular piston, or the push-up tensioning component is connected to the annular piston and a third sealing member is arranged between them.

[0015] The beneficial effect of the utility model is that, in the plate roller sleeve installation mechanism of the printing equipment, the plate roller is relatively easy to assemble and disassemble on the plate roller shaft, and the pushing and tightening parts cooperate with each other to tighten and release, and it is only necessary to assemble and disassemble the blocking positioning part at the front position so that the part can be assemble and disassembled in the blocking position, without the need for additional operation on the blocking positioning part (such as tightening operation, avoiding problems such as inconvenient tightening of the thread, difficulty in tightening, easy loosening, slipping, inaccuracy, uneven force, etc.).

[0016] On this basis, the blocking and positioning sleeve can also be connected with the disassembly and assembly coupling sleeve to form a combined sleeve, and the disassembly and assembly coupling sleeve can be used to realize the fast and convenient installation of the blocking and positioning component.

[0017] It is even possible to combine the structure of the axial displacement driving mechanism with the plate roller shaft to form a pneumatic axial displacement driving mechanism based on the plate roller shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following describes the relevant details and working principles of the implementation methods and embodiments of the present utility model in conjunction with the accompanying drawings.

[0019] Figure 1 It is a structural schematic diagram of the utility model.

[0020] Figure 2It is a schematic diagram of an embodiment of the front end structure of the plate roller shaft in the utility model which is installed in cooperation with the disassembly and assembly coupling sleeve.

[0021] Figure 3 It is a cross-sectional view of the matching structure between the middle plate roller shaft and the disassembly and assembly coupling sleeve of the utility model.

[0022] Figure 4 It is a three-dimensional schematic diagram of the matching structure of the front end of the middle plate roller shaft of the utility model.

[0023] In the figure:

[0024] 1. Plate roller shaft; 12. Cylinder sleeve installation position; 13. Cylinder sleeve disassembly and inlet and outlet end; 14. Entry slot; 15. Lock block circumferential displacement slot; 151. Lock block retreat limit part; 1511. Lock block limit notch; 16. Raised step part;

[0025] 2. Blocking positioning components;

[0026] 21. Blocking positioning sleeve; 211. Blocking outer cone surface;

[0027] 22. Disassembly and assembly of the joint sleeve; 221. Inner convex locking block;

[0028] 3. Push the elastic parts;

[0029] 31. Push-up elastic sleeve; 311. Push-up outer cone surface; 32. Transmission enclosure sleeve;

[0030] 4. Axial displacement driving mechanism;

[0031] 41. air connection channel; 42. air chamber; 43. annular piston; 44. pressure spring; 45. spring seat; 451. fixing sleeve; 452. adjusting sleeve;

[0032] 46, air inlet; 47, annular air path; 48, lateral air hole; 80, front seal; 81, rear seal; 82, first seal; 83, second seal;

[0033] 5. Support sleeve;

[0034] 6. Bearings;

[0035] 7. Plate roller; 71. Inner cone surface of port;

[0036] 90. Locking nut. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the implementation of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field without making creative work based on the embodiments of the utility model are within the scope of protection of the utility model.

[0038] Referring to the accompanying drawings, the plate roller 7 sleeve installation mechanism of the printing equipment in the embodiment of the present embodiment includes a plate roller shaft 1, and a cylinder sleeve installation position 12 is reserved on the plate roller shaft 1. The cylinder sleeve installation position 12 is the position for assembling and setting the plate roller 7 (i.e., the cylinder). When the plate roller 7 is assembled and fixed on the plate roller shaft 1, it can rotate with the plate roller shaft 1 and operate to cooperate with the printing work.

[0039] Among them, the front end of the plate roller shaft 1 is a cylinder sleeve disassembly inlet and outlet end 13, and the plate roller 7 can be axially inserted and axially removed from the front end position. Usually, a supporting structure can be additionally arranged on the front side of the printing device to support the front end of the plate roller shaft 1 so as to be more stable during the printing process. Of course, the supporting structure needs to be disassembled or opened and closed (such as the plate cylinder positioning end cover mechanism of CN211542771U and the end cover structure in the printing press).

[0040] In addition, the plate roller shaft 1 is provided with a blocking positioning component 2 for blocking the cylinder position in a detachable manner and a pushing and tightening component 3 for pushing and pushing the cylinder position in an axially movable manner. Among them, the blocking positioning component 2 for blocking the cylinder position in a detachable manner is provided at the front end of the cylinder sleeve installation position 12, and the pushing and tightening component 3 for pushing and pushing the cylinder position in an axially movable manner is provided at the rear end of the cylinder sleeve installation position 12, that is, the cylinder sleeve installation position 12 is provided between the blocking positioning component 2 and the pushing and tightening component 3.

[0041] The blocking and positioning component 2 can be disassembled and assembled on the plate roller shaft 1 and can block (position) the position of the cylinder, so that after the plate roller 7 (i.e. the cylinder) is sleeved on the plate roller shaft 1, when it is fixed, it can be blocked and positioned by the blocking and positioning component 2.

[0042] The push-up tension component 3 can be axially displaced on the plate roller shaft 1. Through axial displacement (i.e. axial movement), it can cooperate with the tension push-up cylinder position, and can tighten or loosen the plate roller 7 (sleeved on the plate roller shaft 1), and cooperate with the plate roller 7 to be disassembled and assembled.

[0043] When the plate roller 7 (sleeved on the plate roller shaft 1) is fixed, the front end of the plate roller 7 contacts the blocking positioning component 2, and the blocking positioning component 2 cooperates with the blocking positioning cylinder position; the rear end of the plate roller 7 is axially pressed forward by the pushing elastic component 3, and the front end of the plate roller 7 is pushed toward the blocking positioning component 2; the pushing elastic component 3 and the blocking positioning component 2 are sleeved on the plate shaft, and the pushing elastic component 3 and the blocking positioning component 2 cooperate to fix the plate roller 7 (sleeved on the plate roller shaft 1).

[0044] The push-up tension component 3 is equipped with an axial displacement driving mechanism 4, which is in transmission connection with the push-up tension component 3, and the axial displacement driving mechanism 4 cooperates to drive the push-up tension component 3 to perform axial displacement, so as to cooperate with the action of tightening and loosening the cylinder. The axial displacement driving mechanism 4 is arranged on the plate roller shaft 1, and the axial displacement driving mechanism 4 can move (such as rotate) with the plate roller shaft 1, so as to ensure that the push-up tension component 3 can be driven to run smoothly, so as to avoid affecting the normal printing operation.

[0045] When installing and fixing the plate roller 7, the plate roller 7 is inserted from the sleeve disassembly inlet and outlet end 13 of the cylinder body onto the plate roller shaft 1, so that it is in the sleeve installation position 12 of the cylinder body, and then the blocking positioning component 2 is installed at the front end position of the sleeve installation position 12 of the cylinder body, and then the axial displacement driving mechanism 4 only needs to drive the push-up elastic component 3 to move axially on the plate roller shaft 1, and move axially forward to tighten the plate roller 7, and the rear end of the plate roller 7 is axially pushed forward by the push-up elastic component 3, and the front end of the plate roller 7 is pushed toward the blocking positioning component 2; the push-up elastic component 3 cooperates with the blocking positioning component 2 to fix the plate roller 7 (sleeved on the plate roller shaft 1). When disassembling the plate roller 7, the axial displacement driving mechanism 4 drives the push-up elastic component 3 to move axially backward to loosen the plate roller 7, and the rear end of the plate roller 7 and the blocking positioning component 2 can also be separated smoothly. After removing the blocking positioning component 2, the plate roller 7 can be taken out from the sleeve disassembly inlet and outlet end 13 of the plate roller shaft 1.

[0046] In the installation mechanism of the plate roller 7 of the printing equipment, the plate roller 7 is relatively easy to assemble and disassemble on the plate roller shaft 1. The pushing and tightening parts 3 cooperate to tighten and release. It is only necessary to assemble and disassemble the blocking and positioning parts 2 at the front position so that the parts can be assemble and disassembled in the blocking position. No additional operation (such as tightening operation) is required for the blocking and positioning parts 2.

[0047] The following optimization or further explanation may be performed based on the above embodiments.

[0048] For example, the plate roller shaft 1 is sleeved in the support sleeve 5, and a bearing 6 is also arranged between the plate roller shaft 1 and the support sleeve 5. The support sleeve 5 cooperates with the plate roller shaft 1 to run (such as rotate), and the bearing 6 makes it run more stably and smoothly. Among them, the rear part of the plate roller shaft 1 is connected to the support sleeve 5, and the cylinder sleeve installation position 12 is set at the front side of the support sleeve 5. The axial relative position between the plate roller shaft 1 and the support sleeve 5 remains unchanged.

[0049] In addition, the front and rear ends of the plate roller 7 are respectively provided with matching parts for installation, which match the blocking positioning and the pressing, so as to match the blocking positioning component 2 and the pushing and tightening component 3 to be installed on the plate roller shaft 1. Among them, the matching part can be set as the inner conical surface 71 of the port (as shown in the figure, that is, the conical hole port before and after the plate roller 7), and the position is relatively stable; or the matching part is set as a step port (not shown in the figure).

[0050] For example, the blocking and positioning component 2 includes a blocking and positioning sleeve 21, which is sleeved on the plate roller shaft 1 to make the blocking and positioning force more balanced. For example, the blocking and positioning sleeve 21 has an inner ring, and the inner ring of the blocking and positioning sleeve 21 is sleeved outside the plate roller shaft 1. The blocking and positioning sleeve 21 has a blocking and positioning part; for example, as shown in the figure, the blocking and positioning part adopts a blocking and positioning outer cone 211, and the blocking and positioning outer cone 211 is located on the outer ring of the blocking and positioning sleeve 21, and the blocking and positioning outer cone 211 is matched with the inner cone 71 of the port of the plate roller 7. The inner and outer cones cooperate to block and position, and the plate roller has a better centering effect, more accurate positioning, small printing circumferential error, and high overprinting accuracy; or, not shown in the figure, the blocking and positioning part adopts a blocking and positioning step cylinder, and the blocking and positioning step cylinder is matched with the step port of the plate roller 7, which can also play a blocking positioning and centering effect.

[0051] In addition, the blocking and positioning component 2 also includes a disassembly sleeve 22. The blocking and positioning sleeve 21 is connected to the disassembly sleeve 22 to form a combined sleeve for easy disassembly. The disassembly sleeve 22 is connected to the front side of the blocking and positioning sleeve 21 (relatively outward). The blocking and positioning sleeve 21 will be quickly disassembled along with the disassembly sleeve 22 to complete the disassembly and assembly of the blocking and positioning component 2. Among them, the inner ring of the disassembly sleeve 22 is provided with an inner convex locking block 221 (a structure protruding toward the axial direction). The inner ring of the disassembly sleeve 22 is sleeved on the plate roller shaft 1. The front end of the plate roller shaft 1 is provided with an entry groove 14 for the inner convex locking block 221 to enter. When the blocking and positioning sleeve 21 and the disassembly sleeve 22 are sleeved on the plate roller shaft 1 together, the inner convex locking block 221 can enter the entry groove 14 and move backward. The plate roller shaft 1 is also provided with a locking block circumferential displacement groove 15. The locking block circumferential displacement groove is connected to the entry groove 14. When the inner convex locking block 221 is inserted into the plate roller shaft 1, the inner convex locking block 221 can be inserted into ... When the locking block 221 reaches the position corresponding to the locking block circumferential displacement groove 15, the disassembly and assembly coupling sleeve 22 can be rotated, and the inner convex locking block 221 can be rotated together. The front side wall of the locking block circumferential displacement groove 15 is the locking block retreat limit part 151, and the disassembly and assembly coupling sleeve 22 cannot retreat and disengage. When the cylinder body is tightened, the axial separation of the disassembly and assembly coupling sleeve 22 is avoided, and the connected blocking and positioning sleeve 21 will not be axially separated either. The disassembly and assembly coupling sleeve 22 can cooperate to realize the rapid disassembly and assembly of the blocking and positioning component 2, making disassembly and assembly and plate changing more convenient and faster. Even, a lock block limiting recess 1511 is additionally provided on the lock block retraction limiting portion 151, and the lock block limiting recess 1511 can be inserted into the inner convex lock block 221, thereby limiting the position of the inner convex lock block 221 to prevent it from rotating and disengaging, and preventing the disassembly and assembly coupling sleeve 22 from rotating and disengaging, making the position of the disassembly and assembly coupling sleeve 22 more stable; the entry groove 14 can be axially arranged, that is, parallel to the axis of the plate roller shaft 1, which is convenient for processing and assembly; during normal disassembly, it is only necessary to push the disassembly and assembly coupling sleeve 22 axially toward the rear end to disengage the inner convex lock block 221 from the lock block limiting recess 1511, and then the disassembly and assembly coupling sleeve 22 can be rotated to make the inner convex lock block 221 move from the lock block circumferential displacement groove 15 to the entry groove 14, and the inner convex lock block 221 finally moves out along the entry groove 14 to complete the disassembly of the blocking and positioning component 2 (including the blocking and positioning sleeve 21 and the disassembly and assembly coupling sleeve 22). Usually, a plurality of inner convex locking blocks 221 and corresponding plurality of entry slots 14 and lock block circumferential displacement slots 15 can be evenly and equally arranged in the circumferential direction, so that the force is more evenly distributed and it is easier to align and install quickly when in use. The inner convex locking blocks 221 on the disassembly and assembly coupling sleeve 22 cooperate with the entry slots 14 and the lock block circumferential displacement slots 15 on the plate roller shaft 1 to form a quick disassembly and assembly structure, so that the disassembly and assembly coupling sleeve 22 and the connected blocking and positioning sleeve 21 can be quickly disassembled and assembled, and can be quickly placed in the blocking and positioning position after being assembled, and can be quickly removed when disassembled.

[0052] For example, the push-up elastic component 3 includes a push-up elastic sleeve 31. The push-up force is more balanced when it is sleeved on the plate roller shaft 1. For example, the push-up elastic sleeve 31 has an inner ring, and the inner ring of the push-up elastic sleeve 31 is sleeved outside the plate roller shaft 1. The push-up elastic sleeve 31 has a push-up elastic part; for example, as shown in the figure, the push-up elastic part adopts a push-up elastic outer cone surface 311, and the push-up elastic outer cone surface 311 is located on the outer ring of the push-up elastic sleeve 31. The push-up elastic outer cone surface 311 cooperates with the inner cone surface 71 of the port of the plate roller 7, and the push-up matching position is relatively stable. The inner and outer cone surfaces cooperate to block the positioning, the plate roller centering effect is better, the positioning is more accurate, the printing circumferential error is small, and the overprinting accuracy is high; or, as not shown in the figure, the push-up elastic part adopts a push-up elastic step cylinder, and the push-up elastic step cylinder cooperates with the step port of the plate roller 7, which can also play a blocking positioning and centering effect.

[0053] In addition, there are many ways to axially displace the driving mechanism 4, such as setting a cylinder on the plate roller shaft 1. In order to make the structure more reasonable and the pipeline more concise, the axially displaced driving mechanism 4 in the utility model adopts the following structure:

[0054] The axial displacement driving mechanism 4 includes an air connection 41, an air chamber 42, an annular piston 43, a pressure spring 44 and a spring seat 45; wherein the air connection 41 is connected to the air chamber 42 so that the air source can enter the air chamber 42 through the air connection 41 to control the air pressure of the air chamber 42; wherein the air chamber 42 is arranged around the circumferential periphery of the plate roller shaft 1, and can be surrounded by the annular piston 43, the push-up elastic component 3, the plate roller shaft 1, etc. to form the air chamber 42; wherein the annular piston 43 is sleeved on the plate roller shaft 1, and the plate roller shaft 1 has a position for the annular piston 43 to move axially, and the annular piston 43 can move axially on the plate roller shaft 1 to form a piston operation structure; the air chamber 42 and the pressure spring 44 are respectively arranged on the front and rear sides of the annular piston 43, and the gas in the air chamber 42 cooperates with the pressure spring 44 to control the operation of the annular piston 43 and the axial (front and back) movement of the annular piston 43; when the air pressure in the air chamber 42 increases ( When the air source is turned on, the elastic force of the pressure spring 44 can be overcome to make the annular piston 43 move in the direction of the pressure spring 44; when the air pressure in the air chamber 42 becomes smaller (such as when the air source is turned on), the annular piston 43 can be moved in the direction of the air chamber 42 under the elastic force of the pressure spring 44, and the pressure spring 44 pushes the push-up tension component 3 to lock the plate roller 7, which has a simplified structure, reliable locking, small axial error in printing, and high printing accuracy; wherein, the push-up tension component 3 is connected to the annular piston 43, and the push-up tension component 3 is located at the front side of the annular piston 43, and the push-up tension component 3 is driven by the annular piston 43 to perform axial displacement (i.e. axial movement, axial activity); wherein, the spring seat 45 is connected to the plate roller shaft 1, and the spring seat 45 can run together with the plate roller shaft 1 (such as rotation, etc.), and the pressure spring 44 is arranged between the spring seat 45 and the annular piston 43 to ensure that the elastic force of the pressure spring 44 cooperates with the control to act on the annular piston 43.

[0055] In addition, it can be optimized that the air duct 41 is built into the plate roller shaft 1 , for example, a hole is directly provided on the plate roller shaft 1 as the air duct 41 .

[0056] An air path rotary joint (not shown) for connecting to the air duct 41 is provided on the plate roller shaft 1; alternatively, an air connection port 46 is provided on the support sleeve 5, and an annular air path 47 is also provided between the plate roller shaft 1 and the support sleeve 5, the air connection port 46 is communicated with the annular air path 47, a lateral air hole 48 is provided on the plate roller shaft 1, the lateral air hole 48 is communicated with the air duct 41, and the lateral air hole 48 is communicated with the annular air path 47, so that the plate roller shaft 1 can smoothly complete the air path connection during the rotating operation in the support sleeve 5, without affecting the rotation of the plate roller shaft 1 and without occupying the rear end position of the plate roller shaft 1, and in addition, a front seal 80 and a rear seal 81 are provided on the support sleeve 5 and the plate roller shaft 1, and the annular air path 47 is located between the front seal 80 and the rear seal 81. Among them, the air chamber 42 can be an annular air chamber 42; wherein, the annular piston 43 can be arranged at the rear of the air chamber 42, the pressure spring 44 can be arranged on the rear side of the annular piston 43, a first seal 82 is provided between the annular piston 43 and the plate roller shaft 1, the push-up elastic component 3 is arranged around the circumferential periphery of the air chamber 42, a second seal 83 is provided between the push-up elastic component 3 and the plate roller shaft 1, and the front side of the air chamber 42 is the raised step portion 16 of the plate roller shaft 1, and the structure is relatively isolated. In addition, the spring seat 45 includes a fixed sleeve 451 and an adjusting sleeve 452. The fixed sleeve 451 is fixedly connected (can be welded or integrated or fastened) on the plate roller shaft 1, and the adjusting sleeve 452 is sleeved on the outside of the fixed sleeve 451. One end of the pressure spring 44 is connected to the adjusting sleeve 452, and the adjusting sleeve 452 of the spring seat 45 is connected to support the pressure spring 44. The other end of the pressure spring 44 is connected to the push-up tension component 3. The position of the adjusting sleeve 452 on the fixed sleeve 451 can be adjusted to adjust the elastic force of the pressure spring 44, thereby adjusting the tension of the push-up tension component 3. For example, the axial front and rear position of the adjusting sleeve 452 and the fixed sleeve 451 can be adjusted by threaded connection, and even a gasket can be arranged between the adjusting sleeve 452 and the pressure spring 44 so that the adjusting sleeve 452 can be smoothly rotated and adjusted; in addition, the pushing and tensioning component 3 also includes a transmission enclosure sleeve 32, and the transmission enclosure sleeve 32 is transmission-connected with the pushing and tensioning sleeve 31. The pushing and tensioning sleeve 31 is before the transmission enclosure sleeve 32, and the transmission enclosure sleeve 32 is sleeved on the plate roller shaft 1 and surrounded by the circumferential periphery of the air chamber 42, so as to cooperate to enclose the air chamber 42 and realize the transmission connection, and the second sealing member 83 is arranged between the transmission enclosure sleeve 32 and the plate roller shaft 1.

[0057] The blocking and positioning sleeve 21 and the disassembling and engaging sleeve 22 can be provided as one piece, or they can be provided as separate pieces and then connected (for example, they can be provided as sleeves on each other and can rotate relative to each other, or even their relative axial positions remain unchanged). Similarly, the transmission enclosure sleeve 32 and the ejection elastic sleeve 31 can be provided as one piece, or they can be provided as separate pieces and then connected (for example, they can be provided as sleeves on each other and can rotate relative to each other, or even their relative axial positions remain unchanged). The blocking and positioning sleeve 21 and the pushing and tightening sleeve 31 can respectively adopt an expansion sleeve structure, such as the top sleeve in the plate roller device of a printing device in CN117382298A, the inner ring of the top sleeve is also provided with a concentrically arranged deformation avoidance annular groove, and the end of the top sleeve is provided with a dividing groove, which divides the outer cone surface into a plurality of unit surfaces, and the dividing groove also divides the end of the top sleeve into a plurality of elastic unit claws, the unit surfaces are located on the outside of the elastic unit claws, and the elastic unit claws are arranged and arranged along the circumferential distribution, so that the outer cone surface can cooperate with the front port and the rear port of the plate roller 7 (such as the inner cone surface 71 of the port), and the inner ring of the top sleeve can be tightly held on the shaft (such as the plate roller shaft 1), and the position is more stable. The blocking and positioning sleeve 21 and the pushing and tightening sleeve 31 cooperate to tighten the plate roller 7 from both ends to the plate roller shaft 1 to form an integral structure.

Claims

1. A plate roller sleeve installation and positioning mechanism for a printing device, comprising a plate roller shaft (1), a cylinder sleeve installation position (12) being reserved on the plate roller shaft (1), characterized in that: The front end of the plate roller shaft (1) is a cylinder sleeve disassembly inlet and outlet end (13). The plate roller shaft (1) is provided with a detachable blocking positioning component (2) for blocking the cylinder position and an axially movable pushing and tightening component (3) for pushing the cylinder position. The blocking and positioning component (2) is arranged at the front end of the cylinder sleeve mounting position (12). The push-up tensioning component (3) is arranged at the rear end of the cylinder sleeve mounting position (12). The push-pull tensioning component (3) is equipped with an axial displacement driving mechanism (4). The axial displacement driving mechanism (4) is arranged on the plate roller shaft (1), and the axial displacement driving mechanism (4) is in driving connection with the push-up tensioning component (3); The plate roller shaft (1) is sleeved in the support sleeve (5), and a bearing (6) is further provided between the plate roller shaft (1) and the support sleeve (5); The front end and the rear end of the plate roller (7) are respectively provided with matching parts for installation.

2. The plate roller sleeve installation and positioning mechanism of the printing equipment according to claim 1, characterized in that: The rear part of the plate roller shaft (1) is connected to the support sleeve (5), and the cylinder sleeve mounting position (12) is arranged on the front side of the support sleeve (5).

3. The plate roller sleeve installation and positioning mechanism of the printing equipment according to claim 1, characterized in that: The matching portion is set as an inner conical surface (71) of the port, or the matching portion is set as a stepped port.

4. The plate roller sleeve installation and positioning mechanism of the printing equipment according to claim 1, characterized in that: The blocking and positioning component (2) comprises a blocking and positioning sleeve (21).

5. The plate roller sleeve installation and positioning mechanism of the printing equipment according to claim 4, characterized in that: The blocking and positioning sleeve (21) has an inner ring, and the inner ring of the blocking and positioning sleeve (21) is sleeved outside the plate roller shaft (1); The blocking and positioning sleeve (21) is provided with a blocking and positioning portion; The blocking positioning portion adopts a blocking positioning outer conical surface (211), which is located on the outer ring of the blocking positioning sleeve (21), and the blocking positioning outer conical surface (211) matches with the inner conical surface (71) of the port of the plate roller (7); or, the blocking positioning portion adopts a blocking positioning step cylinder, which matches with the step port of the plate roller (7).

6. The plate roller sleeve installation and positioning mechanism of the printing equipment according to claim 4 or 5, characterized in that: The blocking and positioning component (2) further comprises a disassembly and assembly coupling sleeve (22), the blocking and positioning sleeve (21) and the disassembly and assembly coupling sleeve (22) are connected to form a combined sleeve, and the disassembly and assembly coupling sleeve (22) is connected to the front side of the blocking and positioning sleeve (21). The inner ring of the disassembly and assembly engagement sleeve (22) is provided with an inner convex locking block (221), and the inner ring of the disassembly and assembly engagement sleeve (22) is sleeved on the plate roller shaft (1). The front end of the plate roller shaft (1) is provided with an entry groove (14) for the inner convex locking block (221) to enter, and the plate roller shaft (1) is also provided with a locking block circumferential displacement groove (15), the locking block circumferential displacement groove is connected to the entry groove (14), and the front side wall of the locking block circumferential displacement groove (15) is a locking block retreat limiting portion (151); the locking block retreat limiting portion (151) is provided with a locking block limiting recess (1511); and the entry groove (14) is axially arranged.

7. The plate roller sleeve installation and positioning mechanism of the printing equipment according to claim 1, characterized in that: The push-up elastic component (3) comprises a push-up elastic sleeve (31).

8. The plate roller sleeve installation and positioning mechanism of the printing equipment according to claim 1, characterized in that: The push-up elastic sleeve (31) has an inner ring, and the inner ring of the push-up elastic sleeve (31) is sleeved outside the plate roller shaft (1); The push-up elastic sleeve (31) is provided with a push-up elastic portion; The push-pull elastic part adopts a push-pull elastic outer conical surface (311), which is located on the outer ring of the push-pull elastic sleeve (31), and the push-pull elastic outer conical surface (311) matches with the inner conical surface (71) of the port of the plate roller (7); or, the push-pull elastic part adopts a push-pull elastic step cylinder, which matches with the step port of the plate roller (7).

9. The plate roller sleeve installation and positioning mechanism of the printing equipment according to claim 1, characterized in that: The axial displacement driving mechanism (4) comprises an air connection passage (41), an air chamber (42), an annular piston (43), a pressure spring (44) and a spring seat (45). The air passage (41) is connected to the air chamber (42), and the air chamber (42) is arranged around the circumference of the plate roller shaft (1). The annular piston (43) is sleeved on the plate roller shaft (1), and the plate roller shaft (1) has a position for the annular piston (43) to move axially. The air chamber (42) and the pressure spring (44) are respectively arranged on the front and rear sides of the annular piston (43). The push-up tension member (3) is connected to the annular piston (43), and the push-up tension member (3) is located on the front side of the annular piston (43). The spring seat (45) is connected to the plate roller shaft (1), and the pressure spring (44) is arranged between the spring seat (45) and the annular piston (43).

10. The plate roller sleeve installation and positioning mechanism of the printing equipment according to claim 9, characterized in that: The air receiving channel (41) is built into the plate roller shaft (1); the plate roller shaft (1) is sleeved in the support sleeve (5); An air path rotary joint for connecting to the air connection passage (41) is provided on the plate roller shaft (1); or, an air connection port (46) is provided on the support sleeve (5); an annular air path (47) is provided between the plate roller shaft (1) and the support sleeve (5); the air connection port (46) is communicated with the annular air path (47); a lateral air passage hole (48) is provided on the plate roller shaft (1); the lateral air passage hole (48) is communicated with the air connection passage (41); the lateral air passage hole (48) is communicated with the annular air path (47); a front seal (80) and a rear seal (81) are provided on the support sleeve (5) and the plate roller shaft (1); the annular air path (47) is located between the front seal (80) and the rear seal (81); The air chamber (42) is an annular air chamber (42); The annular piston (43) is arranged at the rear of the air chamber (42), the pressure spring (44) is arranged at the rear side of the annular piston (43), and a first sealing member (82) is provided between the annular piston (43) and the plate roller shaft (1). The push-up elastic component (3) is arranged around the circumference of the air chamber (42), and a second sealing member (83) is provided between the push-up elastic component (3) and the plate roller shaft (1). The front side of the air chamber (42) is a raised step portion (16) of the plate roller shaft (1); The spring seat (45) comprises a fixed sleeve (451) and an adjusting sleeve (452), wherein the fixed sleeve (451) is fixedly connected to the plate roller shaft (1), and the adjusting sleeve (452) is sleeved outside the fixed sleeve (451), one end of the pressure spring (44) is connected to the adjusting sleeve (452), and the other end of the pressure spring (44) is connected to the push-up tension component (3); The adjusting sleeve (452) and the fixing sleeve (451) are screwed together to adjust the axial front and rear position; The push-up elastic component (3) also includes a transmission enclosure sleeve (32), the transmission enclosure sleeve (32) is in transmission connection with the push-up elastic sleeve (31), the push-up elastic sleeve (31) is in front of the transmission enclosure sleeve (32), the transmission enclosure sleeve (32) is sleeved on the plate roller shaft (1) and is arranged around the circumferential periphery of the air chamber (42), and the second sealing member (83) is arranged between the transmission enclosure sleeve (32) and the plate roller shaft (1); The push-up tension component (3) is integrally connected to the annular piston (43), or the push-up tension component (3) is connected to the annular piston (43) and a third sealing component is provided between them.

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