CN-224226262-U - Paper tube plug convenient for feeding

Abstract

The utility model discloses a paper tube plug convenient to feed, which comprises a plug body, wherein the plug body is of a cylindrical structure, a paper tube accommodating ring groove I and a paper tube accommodating ring groove II are formed in one end face of the plug body, the paper tube accommodating ring groove I and the paper tube accommodating ring groove II are coaxially arranged with the plug body, the outer diameter of the paper tube accommodating ring groove II is larger than that of the paper tube accommodating ring groove I, a protruding shaft positioned on the plug body and positioned on the inner side of the paper tube accommodating ring groove I is a paper tube sleeved shaft I, a hollow shaft positioned on the plug body and positioned between the paper tube accommodating ring groove I and the paper tube accommodating ring groove II is a paper tube sleeved shaft II, and a threaded connecting hole coaxially arranged with the paper tube accommodating ring groove I and the paper tube accommodating ring groove II is formed in the other end face of the plug body.

Inventors

• LI HUASHUAI
• WANG HONGLEI
• LI SHENGGUO
• GAO KE
• DING CHANG
• ZHANG KAIXIN
• ZHANG YU
• WU YUKUN

Assignees

• 河南银金达彩印股份有限公司

Dates

Publication Date

20260512

Application Date

20250507

Claims (4)

1. 1. A paper tube plug convenient to feed is characterized in that the plug body is of a cylindrical structure, a paper tube containing annular groove I and a paper tube containing annular groove II are formed in one end face of the plug body, the paper tube containing annular groove I and the paper tube containing annular groove II are both coaxially arranged with the plug body, the outer diameter of the paper tube containing annular groove II is larger than that of the paper tube containing annular groove I, a protruding shaft located on the inner side of the paper tube containing annular groove I on the plug body is a paper tube sleeved shaft I, a hollow shaft located between the paper tube containing annular groove I and the paper tube containing annular groove II on the plug body is a paper tube sleeved shaft II, and a threaded connecting hole coaxially arranged with the paper tube containing annular groove I is formed in the other end face of the plug body.
2. 2. The paper tube plug convenient to feed according to claim 1, wherein a plurality of grooves are formed in the outer circumferential side walls of the paper tube containing annular groove I and the paper tube containing annular groove II at equal intervals, the grooves are formed in the axial direction of the plug body, and the groove depth of each groove is the same as the groove depth of the paper tube containing annular groove I and the paper tube containing annular groove II.
3. 3. The plug for paper tubes convenient to feed according to claim 1, wherein the outer end faces of the first paper tube sleeving shaft and the second paper tube sleeving shaft are provided with chamfers.
4. 4. The paper tube plug convenient to feed according to claim 1, wherein knurling is arranged on the circumferential outer wall of the plug body.

Description

Paper tube plug convenient for feeding Technical Field The utility model relates to the technical field of flexible package processing, in particular to a paper tube plug convenient to feed. Background In the modern production process, a hollow paper tube is generally adopted for winding and storing various films, adhesive tapes or paper and other banded products, when the films are wound by a solvent-free compounding machine, the hollow paper tube is sleeved on a metal shaft (driving shaft) of the solvent-free compounding machine, two ends of the hollow paper tube are respectively provided with a paper tube plug, the paper tube plugs are connected to the metal shaft, the patent publication No. CN215334039U discloses a plug structure of a film slitting shaft, the front part of the plug is a cone frustum body, the rear part of the plug is a cylinder, a plurality of stop blocks are arranged at the joint of the cylinder and the cone frustum body of the plug, the stop blocks are used for inserting the paper tube, but the inner diameter of a raw material paper tube used on the solvent-free compounding machine is 76mm and 152mm, each paper tube can be assembled on the machine only by corresponding plugs, the paper tube plugs of a single specification can be sleeved and fixed, the paper tube plugs are required to be removed when the paper tube specification is required, the feeding time is increased, the production efficiency is influenced, and the like. Disclosure of utility model The paper tube plug is convenient to feed, can be sleeved and fixed for paper tubes of two specifications, does not need to be dismantled when the specifications of the paper tubes are changed, improves the adaptability of the paper tube plug, reduces the feeding time, improves the production efficiency, reduces the production cost, facilitates the insertion and the extraction of the paper tubes, has a simple structure, is convenient to process and manufacture, and can effectively solve the problems in the background art. The paper tube plug comprises a plug body, wherein the plug body is of a cylindrical structure, a paper tube accommodating ring groove I and a paper tube accommodating ring groove II are formed in one end face of the plug body, the paper tube accommodating ring groove I and the paper tube accommodating ring groove II are coaxially arranged with the plug body, the outer diameter of the paper tube accommodating ring groove II is larger than that of the paper tube accommodating ring groove I, a protruding shaft positioned on the inner side of the paper tube accommodating ring groove I on the plug body is a paper tube sleeved shaft I, a hollow shaft positioned between the paper tube accommodating ring groove I and the paper tube accommodating ring groove II on the plug body is a paper tube sleeved shaft II, and a threaded connecting hole coaxially arranged with the paper tube accommodating ring groove I is formed in the other end face of the plug body. Further, a plurality of grooves are formed in the outer circumferential side walls of the paper tube containing annular groove I and the paper tube containing annular groove II at equal intervals, the grooves are formed in the axial direction of the plug body, and the groove depth of each groove is identical to the groove depth of the paper tube containing annular groove I and the paper tube containing annular groove II. Further, the outer end surfaces of the paper tube sleeving shaft I and the paper tube sleeving shaft II are provided with chamfers. Further, knurling is arranged on the circumferential outer wall of the plug body. Compared with the prior art, the paper tube plug has the beneficial effects that the paper tube plug convenient to feed is fixed by sleeving the paper tube containing ring groove I and the paper tube containing ring groove II which are formed in the plug body in a sleeved mode on paper tubes of two specifications, the paper tube plug does not need to be dismantled when the paper tube specifications are replaced, the adaptability of the paper tube plug is improved, the feeding time is shortened, the production efficiency is improved, the production cost is reduced, the paper tube is convenient to insert and take out by virtue of the plurality of grooves which are formed in the outer side walls of the circumferences of the paper tube containing ring groove I and the paper tube containing ring groove II at equal intervals, and the paper tube plug is simple in structure and convenient to process and manufacture. Drawings FIG. 1 is a schematic diagram of the structure of the present utility model; FIG. 2 is a cross-sectional view of the present utility model; Fig. 3 is a side view of the present utility model. In the figure, 1, a plug body, 2, a paper tube containing annular groove I, 3, a paper tube containing annular groove II, 4, a groove, 5, a threaded connecting hole and 6, knurling. Detailed Description The following description of the embodiments