CN217229823U

CN217229823U - Air expansion shaft

Info

Publication number: CN217229823U
Application number: CN202220052288.7U
Authority: CN
Inventors: 邱源鹏
Original assignee: Shanghai Yuncheng Printing Machinery Parts Co ltd
Current assignee: Shanghai Yuncheng Printing Machinery Parts Co ltd
Priority date: 2022-01-10
Filing date: 2022-01-10
Publication date: 2022-08-19
Anticipated expiration: 2032-01-10

Abstract

The utility model belongs to the technical field of the production facility technique and specifically relates to an inflatable shaft is related to, including support and inflatable shaft main part, inflatable shaft main part includes sleeve pipe and rubber expansion pipe, the sleeve pipe rotates and sets up the one side at the support, rubber expansion pipe fixed mounting is in sheathed tube inside, top one side of support is rotated and is connected with the screw rod, top one side of support is fixed mounting still has the guide bar, the surface cover of screw rod is established and threaded connection has the sliding seat. This application drives the screw rod rotation through servo motor, it can slide along the axis direction of inflatable axle main part to push away the material ring, promote coiled material and inflatable axle main part separation, effectively solved and have great frictional force between coiled material and the inflatable axle, take off comparatively hard problem from inflatable axle, rubber expansion pipe gassing back, the spring can promote rubber expansion pipe and reset, the key strip can outwards contract in the inslot, the condition that the key strip blocked has effectively been reduced takes place, make inflatable axle main part operation more stable.

Description

Air expansion shaft

Technical Field

The application relates to the technical field of production equipment, in particular to an air expansion shaft.

Background

The inflatable shaft is a special winding and unwinding shaft, namely a shaft with a protruded surface after high-pressure inflation, and a shaft with a part of the surface rapidly retracted after deflation is called the inflatable shaft.

The inflatable shaft is usually used for loading cylindrical coiled materials, coiled materials are installed on equipment through the inflatable shaft penetrating through the center of the inflatable shaft, and some coiled materials with larger mass have larger friction force between the coiled materials and the inflatable shaft, so that the coiled materials are difficult to take off from the inflatable shaft.

SUMMERY OF THE UTILITY MODEL

In order to solve the great coiled material of some quality, have great frictional force between coiled material and the inflatable shaft, take off comparatively hard problem from the inflatable shaft, this application provides an inflatable shaft.

The application provides an inflatable shaft adopts following technical scheme: the utility model provides an inflatable shaft, includes support and inflatable shaft main part, inflatable shaft main part includes sleeve pipe and rubber expansion pipe, the sleeve pipe rotates and sets up the one side at the support, rubber expansion pipe fixed mounting is in sheathed tube inside, top one side of support is rotated and is connected with the screw rod, top one side of support still fixed mounting has the guide bar, the surface cover of screw rod is established and threaded connection has the sliding seat, just the sliding seat cover establish the surface of guide bar and with guide bar sliding connection, the bottom fixed mounting of sliding seat has the material pushing ring, the material pushing ring overlaps the surface of establishing at rubber expansion pipe, the side fixed mounting that the screw rod was kept away from to the support has servo motor, servo motor's output and screw rod fixed connection.

Optionally, the rubber expansion pipe is communicated with an external air pump, and the rubber expansion pipe can be inflated by the external air pump, so that the rubber expansion pipe expands, a plurality of key strips are arranged in the peripheral side face of the sleeve in a sliding mode, and the key strips are fixedly installed on the peripheral side face of the rubber expansion pipe.

The coiled material is sleeved on the outer surface of the sleeve, and the key strips can extend out of the rubber expansion pipe and abut against the inner wall of the coiled material sleeve after the rubber expansion pipe expands, so that the coiled material can be fixed.

Optionally, the outer wall of the sleeve is provided with a plurality of outer grooves corresponding to the keybars, and the keybars are accommodated in the outer grooves.

The keybars can be completely accommodated in the outer grooves without inflating the rubber expansion pipes, so that the keybars cannot block the installation and the disassembly of the coiled materials.

Optionally, the key bar is in a frustum pyramid shape, and the cross-sectional area of the key bar is gradually reduced from one end close to the rubber expansion pipe to one end far away from the rubber expansion pipe.

When stretching out the keybar and offseting with the coiled material inner wall, can make the coiled material inner wall produce little deformation, the keybar embedding wherein the back can increase with the frictional force of coiled material, has improved the fixed effect of inflatable shaft main part to the coiled material.

Optionally, a plurality of connecting rods are fixedly mounted on the peripheral side of the rubber expansion pipe, the key bar is fixedly mounted at one end, away from the rubber expansion pipe, of the connecting rod, a spring is sleeved on the peripheral side, located in the sleeve, of the connecting rod, one end of the spring is abutted against the rubber expansion pipe, and the other end of the spring is abutted against the sleeve.

After the rubber expansion pipe is deflated, the spring can push the rubber expansion pipe to reset, the key bars can contract towards the inside of the outer groove, and the situation that the key bars are clamped is effectively reduced.

Optionally, an inner groove corresponding to the spring is formed in the inner wall of the sleeve, one end, far away from the rubber expansion pipe, of the spring is contained in the inner groove, and the rubber expansion pipe extrudes the spring after being expanded.

The spring can contract to the inside groove, effectively hinders the spring and damages because of excessive deformation.

Optionally, a casing for protection is further fixedly mounted on one side of the top of the support, the casing is of a cover body structure with an unsealed bottom surface, and the sliding seat, the screw rod and the guide rod are all accommodated in the casing.

And then can effectively protect sliding seat, screw rod and guide bar.

To sum up, the present application includes the following beneficial effects:

this application has adopted the screw rod, the guide bar, servo motor, sliding seat and pushing away mutually supporting between the material ring, it is rotatory to drive the screw rod through servo motor, it can slide along the axis direction of inflatable shaft main part to push away the material ring, promote coiled material and inflatable shaft main part separation, the great coiled material of some quality has effectively been solved, great frictional force has between coiled material and the inflatable shaft, take off comparatively hard problem from inflatable shaft, after the gassing of rubber expansion pipe, the spring can promote the rubber expansion pipe and reset, the key strip can outwards contract in the groove, the condition that the key strip blocked has effectively been reduced takes place, it is more stable during messenger inflatable shaft main part operation.

Drawings

FIG. 1 is a schematic overall structure of the present application;

FIG. 2 is a schematic structural view of the inflatable shaft body of the present application;

fig. 3 is an enlarged view at a in fig. 2 of the present application.

Description of the reference numerals:

1. a support; 2. an inflatable shaft main body; 21. a sleeve; 211. an outer tank; 212. an inner tank; 22. a rubber expansion pipe; 23. a connecting rod; 231. a key bar; 232. a spring; 3. a screw; 31. a guide bar; 32. a servo motor; 4. a housing; 5. a sliding seat; 51. and (5) pushing the material ring.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

Referring to fig. 1 and 2, the application discloses an inflatable shaft, including support 1 and inflatable shaft main part 2 that is used for loading the coiled material, inflatable shaft main part 2 includes sleeve pipe 21 and rubber expansion pipe 22, and sleeve pipe 21 rotates and sets up in one side of support 1, and the coiled material can overlap and establish and install the surface at sleeve pipe 21. The rubber expansion pipe 22 is fixedly arranged inside the sleeve 21, the rubber expansion pipe 22 is communicated with an external air pump, and the rubber expansion pipe 22 can be inflated by the external air pump, so that the rubber expansion pipe 22 is expanded.

Referring to fig. 2-3, a plurality of splines 231 are slidably disposed in the circumferential side surface of the sleeve 21, the splines 231 are fixedly mounted on the circumferential side surface of the rubber expansion tube 22, the coiled material is sleeved on the outer surface of the sleeve 21, and after the rubber expansion tube 22 is expanded, the splines 231 can extend out of the rubber expansion tube 22 and abut against the inner wall of the sleeve of the coiled material, so as to fix the coiled material. The outer wall of the sleeve 21 is provided with a plurality of outer grooves 211 corresponding to the keybars 231, the keybars 231 are accommodated in the outer grooves 211, and the keybars 231 can be completely accommodated in the outer grooves 211 without inflating the rubber expansion tube 22, so that the keybars 231 do not obstruct the installation and removal of the coil.

Referring to fig. 2-3, the key strip 231 is in a frustum shape, the cross-sectional area of the key strip 231 is gradually reduced from the end close to the rubber expansion tube 22 to the end far away from the rubber expansion tube 22, when the key strip 231 extends out to abut against the inner wall of the coiled material, the inner wall of the coiled material can be slightly deformed, after the key strip 231 is embedded into the key strip, the friction force between the key strip 231 and the coiled material can be increased, and the fixing effect of the inflatable shaft main body 2 on the coiled material is improved.

Referring to fig. 2-3, a plurality of connecting rods 23 are fixedly mounted on the circumferential side surface of the rubber expansion tube 22, the keybar 231 is fixedly mounted at one end of the connecting rod 23 far away from the rubber expansion tube 22, a spring 232 is sleeved on the circumferential side surface of the connecting rod 23 located in the sleeve 21, one end of the spring 232 abuts against the rubber expansion tube 22, the other end of the spring 232 abuts against the sleeve 21, after the rubber expansion tube 22 is deflated, the spring 232 can push the rubber expansion tube 22 to reset, and the keybar 231 can contract towards the inside of the outer groove 211, so that the occurrence of the situation that the keybar 231 is clamped is effectively reduced. The inner wall of the sleeve 21 is provided with an inner groove 212 corresponding to the spring 232, one end of the spring 232 far away from the rubber expansion pipe 22 is accommodated in the inner groove 212, the spring 232 is extruded after the rubber expansion pipe 22 expands, and the spring 232 can contract into the inner groove 212, so that the spring 232 is effectively prevented from being damaged due to excessive deformation.

Referring to fig. 1, a screw 3 parallel to the axial direction of the inflatable shaft body 2 is rotatably connected to one side of the top of the bracket 1, and a guide rod 31 parallel to the axial direction of the screw 3 is fixedly mounted to one side of the top of the bracket 1. The outer surface of screw rod 3 is established and threaded connection has sliding seat 5, and sliding seat 5 cover is established at the surface of guide bar 31 and with guide bar 31 sliding connection, and then screw rod 3 can drive sliding seat 5 and slide along guide bar 31 when rotating. The side face, far away from the screw rod 3, of the support 1 is fixedly provided with a servo motor 32 for providing driving force, and the output end of the servo motor 32 is fixedly connected with the screw rod 3, so that the servo motor 32 can drive the screw rod 3 to rotate during operation. The bottom of the sliding seat 5 is fixedly provided with a material pushing ring 51, the material pushing ring 51 is sleeved on the outer surface of the rubber expansion pipe 22, and when a coiled material to be installed on the outer surface of the air expansion shaft main body 2 needs to be disassembled, the screw rod 3 is started to drive the material pushing ring 51 to slide along the axis direction of the air expansion shaft main body 2, so that the coiled material is pushed to be separated from the air expansion shaft main body 2.

Referring to fig. 1, a gap is left between the inner peripheral side surface of the pushing ring 51 and the outer peripheral side surface of the sleeve 21, and since the pushing ring 51 is not in contact with the sleeve 21, the pushing ring 51 does not hinder the rotation of the sleeve 21. Still fixed mounting has the casing 4 that is used for the protection on one side of the top of support 1, and casing 4 is the cover body structure that the bottom surface does not seal, and sliding seat 5, screw rod 3 and guide bar 31 all hold in casing 4's inside, and then can effectively protect sliding seat 5, screw rod 3 and guide bar 31.

The application of an inflatable shaft's implementation principle does: after rubber expansion pipe 22 gassing, spring 232 can promote rubber expansion pipe 22 and reset, the keybar 231 can contract in outside groove 211, the condition that keybar 231 blocked has effectively been reduced, make keybar 231 can not cause the stopping to the installation of coiled material with dismantling, start servo motor 32, servo motor 32 drives the screw rod 3 rotatory, and drive through sliding seat 5 and push away the material ring 51 and slide along the axis direction of inflatable shaft main part 2, can promote coiled material and the separation of inflatable shaft main part 2.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an inflatable shaft, includes support (1) and inflatable shaft main part (2), its characterized in that: the inflatable shaft main body (2) comprises a sleeve (21) and a rubber expansion pipe (22), the sleeve (21) is rotatably arranged on one side of a support (1), the rubber expansion pipe (22) is fixedly arranged in the sleeve (21), one side of the top of the support (1) is rotatably connected with a screw rod (3), one side of the top of the support (1) is also fixedly provided with a guide rod (31), the outer surface of the screw rod (3) is sleeved with and in threaded connection with a sliding seat (5), the sliding seat (5) is sleeved on the outer surface of the guide rod (31) and is in sliding connection with the guide rod (31), the bottom of the sliding seat (5) is fixedly provided with a material pushing ring (51), the material pushing ring (51) is sleeved on the outer surface of the rubber expansion pipe (22), and the side surface of the support (1) far away from the screw rod (3) is fixedly provided with a servo motor (32), the output end of the servo motor (32) is fixedly connected with the screw rod (3).

2. An inflatable shaft as claimed in claim 1, wherein: the rubber expansion pipe (22) is communicated with an external air pump, a plurality of key strips (231) are arranged in the peripheral side face of the sleeve (21) in a sliding mode, and the key strips (231) are fixedly installed on the peripheral side face of the rubber expansion pipe (22).

3. An inflatable shaft as claimed in claim 2, wherein: the outer wall of the sleeve (21) is provided with a plurality of outer grooves (211) corresponding to the key strips (231), and the key strips (231) are accommodated in the outer grooves (211).

4. An inflatable shaft as claimed in claim 2, wherein: the key strips (231) are in a frustum pyramid shape, and the cross sectional area of the key strips (231) is gradually reduced from one end close to the rubber expansion pipe (22) to one end far away from the rubber expansion pipe (22).

5. The inflatable shaft according to claim 2, wherein: the side fixed mounting all around of rubber expansion pipe (22) has a plurality of connecting rods (23), the one end of rubber expansion pipe (22) is kept away from in connecting rod (23) keybar (231), connecting rod (23) lie in the side cover all around of sleeve pipe (21) and are equipped with spring (232), the one end and the rubber expansion pipe (22) of spring (232) offset, the other end and sleeve pipe (21) of spring (232) offset.

6. An inflatable shaft as claimed in claim 5, wherein: the inner wall of the sleeve (21) is provided with an inner groove (212) corresponding to the spring (232), and one end, far away from the rubber expansion pipe (22), of the spring (232) is accommodated in the inner groove (212).

7. An inflatable shaft as claimed in claim 1, wherein: the top one side of support (1) still fixed mounting have casing (4), casing (4) are the cover body structure that the bottom surface is unsealed, sliding seat (5), screw rod (3) and guide bar (31) all hold in the inside of casing (4).