Inflatable shaft for coiled material printing roller

Abstract

The utility model relates to the technical field of air expansion shafts, and discloses an air expansion shaft for a coiled material printing roller, which comprises an air expansion bearing, an octagonal slot is arranged outside the air expansion bearing, an octagonal plug is movably sleeved inside the octagonal slot, a rotating handle is fixedly connected outside the octagonal plug, and the rotating handle is fixedly connected with the octagonal slot. The interior of the inflatable bearing is fixedly connected with an extrusion cylinder, the exterior of the extrusion cylinder is movably connected with an extrusion rubber ring, the exterior of the extrusion rubber ring is movably connected with a key bar connecting plate, and the interior of the key bar connecting plate is movably connected with a movable key bar in a sleeved mode; according to the inflatable bearing, the octagonal inserting groove is formed, so that an octagonal inserting head can be inserted into the octagonal inserting groove formed in the outer portion of the inflatable bearing, an operator can conveniently disassemble the inflatable bearing by inserting the octagonal inserting head when disassembly is needed, and the octagonal inserting head in the octagonal inserting groove can be pulled out when disassembly is not needed. Therefore, the use experience of an operator is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of air shaft, and more specifically to an air shaft for a coiled material printing roller. Background Art

[0002] The air shaft for a coiled material printing roller, also known as an air expansion shaft, is a fitting widely used in coiled material winding and unwinding equipment, such as die cutting machines, slitting machines, coating machines, winding machines, etc. It uses plates or protruding keys that can expand on the surface after high-pressure inflation to tighten the paper tube or cylinder. When deflated, the surface part will quickly retract, thereby realizing the fixation and loosening of the coiled material. The design and manufacture of the air shaft involve multiple aspects, including material selection, structural design, manufacturing process, etc., to ensure its performance and reliability in practical applications.

[0003] For the existing air shaft for a coiled material printing roller, during daily use, the operator needs to disassemble the air shaft of the coiled material printing roller that has been used for a long time to facilitate equipment maintenance. During the disassembly process, the operator needs to use specific disassembly equipment, which not only makes the disassembly steps cumbersome but also seriously affects the operator's use experience.

[0004] For the existing air shaft for a coiled material printing roller, during daily use, in order to improve the use quality of the equipment, the operator needs to replace or maintain the internal parts of the equipment. When installing after disassembly, because the movable keys need to be fixed individually in the key holes during assembly, it greatly affects the operator's use experience. Summary of the Utility Model

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides an air shaft for a coiled material printing roller to solve the problems existing in the above-mentioned background art.

[0006] The utility model provides the following technical solution: an air shaft for a coiled material printing roller, including an air expansion bearing, an octagonal slot is opened outside the air expansion bearing, an octagonal plug is movably sleeved inside the octagonal slot, a rotating handle is fixedly connected to the outside of the octagonal plug, an extrusion cylinder is fixedly connected inside the air expansion bearing, an extrusion rubber ring is movably connected to the outside of the extrusion cylinder, a key connecting plate is movably connected to the outside of the extrusion rubber ring, and a movable key is movably sleeved inside the key connecting plate.

[0007] Further, an air shaft rotating cylinder is fixedly connected to the outside of the air expansion bearing, an anti-drop bolt is movably sleeved inside the air shaft rotating cylinder, and an octagonal groove is opened outside the anti-drop bolt.

[0008] Furthermore, an air expansion shaft outer cylinder is movably sleeved outside the air expansion bearing. Key strip expansion holes are formed outside the air expansion shaft outer cylinder, and movable key strips are movably sleeved inside the key strip expansion holes.

[0009] Furthermore, an air pressure bag is arranged inside the key strip connecting plate, and an air pressure bag air delivery pipe is formed outside the air pressure bag.

[0010] Furthermore, an inflation groove is formed outside the air expansion bearing, and an inflation hole is fixedly sleeved inside the inflation groove.

[0011] Furthermore, a one-way air valve of the air pipe is fixedly connected to the bottom of the inflation hole, and a threaded pipe is fixedly connected to the bottom of the one-way air valve of the air pipe.

[0012] Furthermore, a bearing socket groove is formed outside the air expansion bearing, and an insertion connecting ring is movably sleeved inside the bearing socket groove.

[0013] The technical effects and advantages of the present utility model:

[0014] 1. By providing an octagonal slot, the present utility model facilitates the insertion of an octagonal plug through the octagonal slot formed outside the air expansion bearing, enabling the operator to conveniently control the rotating handle to rotate and disassemble the air expansion bearing. When disassembly is required, the operator can insert the octagonal plug for disassembly. When disassembly is not required, the octagonal plug in the octagonal slot is pulled out, thus not affecting the operator's usage experience.

[0015] 2. By providing a key strip connecting plate, the present utility model facilitates the pushing and extrusion of a rubber ring through an extrusion cylinder installed inside the air expansion bearing, thereby installing the key strip connecting plate on the air expansion shaft. The telescoping of the air bag is used to control the telescoping of the movable key strip connected to the outside of the key strip connecting plate, effectively facilitating the operator to quickly disassemble or install the movable key strip, thus optimizing the usage experience of the device. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0017] Figure 2 It is a schematic diagram of the structure of the rotating handle of the present utility model.

[0018] Figure 3 It is a schematic diagram of the structure of the threaded pipe of the present utility model.

[0019] Figure 4 It is a schematic diagram of the structure of the air pressure bag of the present utility model.

[0020] The reference numerals are: 1, air inflation bearing; 2, octagonal slot; 3, octagonal plug; 4, rotating handle; 5, extrusion cylinder; 6, extrusion rubber ring; 7, key connecting plate; 8, movable key; 101, air inflation shaft rotating cylinder; 102, anti-dropping bolt; 103, octagonal groove; 104, outer cylinder of air inflation shaft; 105, key telescopic hole; 106, air pressure bag; 107, air pressure bag air pipe; 108, inflation groove; 109, inflation hole; 201, one-way air valve of air pipe; 202, threaded pipe; 203, bearing socket groove; 204, insertion connection ring. Detailed implementation manners

[0021] Next, the technical solutions in the present invention will be clearly and completely described in conjunction with the accompanying drawings in the present invention. In addition, the forms of each structure described in the following embodiments are merely examples. The air inflation shaft for a roll printing roller involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0022] Refer to Figures 1-4 , the present invention provides an air inflation shaft for a roll printing roller, including an air inflation bearing 1. An octagonal slot 2 is opened outside the air inflation bearing 1. An octagonal plug 3 is movably sleeved inside the octagonal slot 2. A rotating handle 4 is fixedly connected to the outside of the octagonal plug 3, which is beneficial to insert the octagonal plug 3 through the octagonal slot 2 opened outside the air inflation bearing 1, facilitating the operator to rotate the rotating handle 4 to rotate and disassemble the air inflation bearing 1. When the operator needs to disassemble, he can disassemble by inserting the octagonal plug 3. When disassembly is not required, the octagonal plug 3 in the octagonal slot 2 is pulled out, thus not affecting the operator's use experience. An extrusion cylinder 5 is fixedly connected inside the air inflation bearing 1. An extrusion rubber ring 6 is movably connected to the outside of the extrusion cylinder 5. A key connecting plate 7 is movably connected to the outside of the extrusion rubber ring 6. A movable key 8 is movably sleeved inside the key connecting plate 7, which is beneficial to push the extrusion rubber ring 6 through the extrusion cylinder 5 installed in the air inflation bearing 1, thereby installing the key connecting plate 7 on the air inflation shaft, and controlling the telescopic movement of the movable key 8 connected to the outside of the key connecting plate 7 through the expansion and contraction of the air bag, effectively facilitating the operator to quickly disassemble or install the movable key 8, thus optimizing the use experience of the device.

[0023] In a preferred embodiment, an air-expansion shaft rotating cylinder 101 is fixedly connected to the outside of the air-expansion bearing 1. An anti-drop-off bolt 102 is movably sleeved inside the air-expansion shaft rotating cylinder 101. An octagonal groove 103 is formed on the outside of the anti-drop-off bolt 102. It is beneficial for operation to insert an octagonal wrench through the octagonal groove 103, so as to disassemble the anti-drop-off bolt 102 from the air-expansion shaft rotating cylinder 101, thus facilitating the disassembly and installation according to the operation needs of the operator.

[0024] In a preferred embodiment, an air-expansion shaft outer cylinder 104 is movably sleeved on the outside of the air-expansion bearing 1. A key strip expansion hole 105 is formed on the outside of the air-expansion shaft outer cylinder 104. A movable key strip 8 is movably sleeved inside the key strip expansion hole 105. It is beneficial to control the expansion and contraction of the movable key strip 8 sleeved inside the key strip expansion hole 105 formed on the air-expansion shaft outer cylinder 104 through the internal airbag, so as to fix the sleeve outside the air-expansion shaft.

[0025] In a preferred embodiment, an air pressure bag 106 is arranged inside the key strip connecting plate 7. An air pressure bag air pipe 107 is formed on the outside of the air pressure bag 106. The air pressure is conveyed into the air pressure bag air pipe 107 through the air pressure bag air pipe 107. When the internal air pressure becomes higher, the key strip connecting plate 7 can be extruded.

[0026] In a preferred embodiment, an inflation groove 108 is formed on the outside of the air-expansion bearing 1. An inflation hole 109 is fixedly sleeved inside the inflation groove 108. It is beneficial to convey compressed air through the inflation hole 109 installed inside the inflation groove 108.

[0027] In a preferred embodiment, an air pipe one-way valve 201 is fixedly connected to the bottom of the inflation hole 109. A threaded pipe 202 is fixedly connected to the bottom of the air pipe one-way valve 201. The compressed air is conveyed from the air pipe one-way valve 201 to the threaded pipe 202. The air pipe one-way valve 201 can prevent the compressed air from flowing back, and the installed threaded pipe 202 can facilitate the operator to dock the equipment.

[0028] In a preferred embodiment, a bearing socket groove 203 is formed on the outside of the air-expansion bearing 1. An insertion connection ring 204 is movably sleeved inside the bearing socket groove 203. It is beneficial to further prevent air pressure leakage during docking through the nesting of the bearing socket groove 203 and the insertion connection ring 204.

[0029] Working principle of the utility model: Insert the octagonal plug 3 through the octagonal slot 2 opened on the outside of the air expansion bearing 1, which facilitates the operator to rotate the rotating handle 4 to rotate and disassemble the air expansion bearing 1. When the operator needs to disassemble, they can insert the octagonal plug 3 for disassembly. When disassembly is not required, the octagonal plug 3 in the octagonal slot 2 is pulled out, which does not affect the operator's usage experience. Push and squeeze the rubber ring 6 through the extrusion cylinder 5 installed inside the air expansion bearing 1, so as to install the key bar connecting plate 7 on the air expansion shaft. The telescoping of the airbag is used to control the telescoping of the movable key bar 8 connected to the outside of the key bar connecting plate 7, effectively facilitating the operator to quickly disassemble or install the movable key bar 8, thereby optimizing the usage experience of the equipment. The outside of the air expansion bearing 1 is fixedly connected to the air expansion shaft rotating cylinder 101. The inside of the air expansion shaft rotating cylinder 101 is movably sleeved with an anti-drop bolt 102. The outside of the anti-drop bolt 102 is provided with an octagonal groove 103, which is beneficial for the operator to insert an octagonal wrench through the octagonal groove 103 to disassemble the anti-drop bolt 102 from the air expansion shaft rotating cylinder 101, thus facilitating the disassembly and installation according to the operator's usage requirements. The outside of the air expansion bearing 1 is movably sleeved with the air expansion shaft outer cylinder 104. The outside of the air expansion shaft outer cylinder 104 is provided with a key bar telescoping hole 105. The inside of the key bar telescoping hole 105 is movably sleeved with the movable key bar 8, which is beneficial for controlling the telescoping of the movable key bar 8 sleeved in the key bar telescoping hole 105 opened on the air expansion shaft outer cylinder 104 through the internal airbag, so as to fix the sleeve outside the air expansion shaft. The inside of the key bar connecting plate 7 is provided with a pneumatic bladder 106. The outside of the pneumatic bladder 106 is provided with a pneumatic bladder air delivery pipe 107. The air pressure is delivered to the pneumatic bladder air delivery pipe 107 through the pneumatic bladder air delivery pipe 107. When the internal air pressure becomes higher, the key bar connecting plate 7 can be squeezed. The outside of the air expansion bearing 1 is provided with an inflation groove 108. The inside of the inflation groove 108 is fixedly sleeved with an inflation hole 109, which is beneficial for delivering compressed air through the inflation hole 109 installed inside the inflation groove 108. The bottom of the inflation hole 109 is fixedly connected to an air pipe check valve 201. The bottom of the air pipe check valve 201 is fixedly connected to a threaded pipe 202. The compressed air is delivered from the air pipe check valve 201 to the threaded pipe 202. The air pipe check valve 201 can prevent the compressed air from flowing back, and the installed threaded pipe 202 can facilitate the operator to dock the equipment. The outside of the air expansion bearing 1 is provided with a bearing socket groove 203. The inside of the bearing socket groove 203 is movably sleeved with an inserted connecting ring 204, which is beneficial for further preventing air pressure leakage during docking through the nesting of the bearing socket groove 203 and the inserted connecting ring 204.

[0030] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

[0031] Finally, several points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, or it can be the communication inside two components. It can be directly connected. The terms "upper", "lower", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change.

[0032] Second, in the drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other.

[0033] Finally, the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. An inflatable shaft for a web printing roller, comprising an inflatable bearing (1), characterized in that: The air bearing (1) is provided with an octagonal slot (2) on the outside, the octagonal slot (2) is movably connected to an octagonal plug (3) on the inside, the octagonal plug (3) is fixedly connected to a rotating handle (4) on the outside, the air bearing (1) is fixedly connected to an extrusion cylinder (5) on the inside, the extrusion cylinder (5) is movably connected to an extrusion rubber ring (6) on the outside, the extrusion rubber ring (6) is movably connected to a key bar connecting plate (7), and the key bar connecting plate (7) is movably connected to a movable key bar (8) on the inside.

2. The inflatable shaft for a web printing roller according to claim 1, characterized in that: The outside of the pneumatic bearing (1) is fixedly connected to the pneumatic shaft rotating cylinder (101), the inside of the pneumatic shaft rotating cylinder (101) is movably sleeved with an anti-dropping bolt (102), and the outside of the anti-dropping bolt (102) is provided with an octagonal groove (103).

3. The inflatable shaft for a web printing roller according to claim 1, characterized in that: The outside of the pneumatic bearing (1) is movably sleeved with the pneumatic shaft outer tube (104), the outside of the pneumatic shaft outer tube (104) is provided with a key bar telescopic hole (105), and the inside of the key bar telescopic hole (105) is movably sleeved with a movable key bar (8).

4. The inflatable shaft for a web printing roller according to claim 1, characterized in that: An air pressure bag (106) is arranged inside the key strip connecting plate (7), and an air pressure bag air delivery pipe (107) is arranged outside the air pressure bag (106).

5. The inflatable shaft for a web printing roller according to claim 1, characterized in that: The outside of the pneumatic bearing (1) is provided with an air filling groove (108), and the inside of the air filling groove (108) is fixedly sleeved with an air filling hole (109).

6. The inflatable shaft for a web printing roller according to claim 5, characterized in that: The bottom of the inflation hole (109) is fixedly connected to the air pipe one-way valve (201), and the bottom of the air pipe one-way valve (201) is fixedly connected to the threaded pipe (202).

7. The inflatable shaft for a web printing roller according to claim 1, characterized in that: A bearing sleeve groove (203) is provided on the outside of the pneumatic bearing (1), and a connecting ring (204) is movably sleeved and inserted into the interior of the bearing sleeve groove (203).

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