CN215402363U - Improved tube core expansion ring for winding shaft - Google Patents
Improved tube core expansion ring for winding shaft Download PDFInfo
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- CN215402363U CN215402363U CN202121495068.3U CN202121495068U CN215402363U CN 215402363 U CN215402363 U CN 215402363U CN 202121495068 U CN202121495068 U CN 202121495068U CN 215402363 U CN215402363 U CN 215402363U
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- tube core
- positioning block
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Abstract
The utility model relates to an improved tube core expansion ring for a winding shaft, which is characterized in that after the structure is improved, a certain expansion force is applied to the inner ring of the expansion ring, after a tube is sleeved in the expansion ring, a positioning block abuts against the inner hole wall of the tube, when the tube rotates forwards, the positioning block drives the tube to rotate, an expansion block moves on a parabola inclined sliding section, the top surface of the expansion block protrudes out of the outer surface of a shell ring, so that the top surface of the expansion block is tightly propped against the inner hole wall surface of the tube, the tube is driven to rotate to smoothly coil materials, after a coiled material is coiled, the tube is rotated reversely, the top of the expansion block is immediately loosened from the inner hole wall surface of the tube, the coiled material is reset to be smoothly moved out of the surface of the expansion ring, the tube core cannot be clamped by the expansion block, and both end surfaces of the expansion ring cannot generate friction with blocking pieces controlling the axial displacement of the expansion ring at both sides, the service life is longer, the working efficiency is higher, the maintenance cost and the maintenance time are reduced.
Description
Technical Field
The utility model relates to an expansion ring which is matched with mechanical equipment, used independently or combined by a plurality of serial devices on the same shaft core and used for expanding the inner pipe core of a paper pipe, a plastic pipe or a metal pipe, and is mainly suitable for being arranged on the mechanical equipment for slitting, winding, unwinding and rewinding plastic, paper, films, paper-plastic composite, packaging, color printing, ultrathin metal films and the like.
Background
At present, tube core expansion rings used on a plurality of winding shafts are available in the market, and most of the tube cores are clamped by rubber air bag type expansion blocks or arc type expansion blocks. When the tube core is clamped, the expansion block and the inner hole of the tube core can slip when the expansion force is small, paper scraps, plastic scraps or metal scraps can fall out, and the surface of the expansion block is abraded more. The tight bloated piece of arc line formula inflation has the dead tube core of card to move back the phenomenon that can not come out when the chucking tube core, and the separation blade of the bloated piece axial displacement of guide seat circle both sides management and control of the bloated piece of arc line formula inflation in addition produces the friction with the outer baffle of installing the bloated piece shell circle axial displacement of both sides management and control on the solid fixed ring that produces the frictional expansion power, has the metal fillings to fall out, perhaps both direct dead phenomena of card, and then influence production work.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an improved tube core expansion ring for a winding shaft, which can expand a paper tube, a plastic tube or a metal tube core and is suitable for working under large expansion force and small expansion force when the tube core is expanded for winding. The tube core can be smoothly withdrawn when the expansion block is withdrawn, the phenomenon that the tube core is clamped by the expansion block is avoided, and friction surfaces at two ends of the expansion ring do not generate friction with the control blocking pieces at two sides.
The purpose of the utility model is realized as follows:
an improved tube core expansion ring for a winding shaft comprises a guide seat, a shell ring, a plurality of expansion blocks, a plurality of positioning block bases, a plurality of blocking pieces and a plurality of spring pieces, wherein the left side of the guide seat is provided with an annular ring for limiting the axial displacement of the shell on the guide seat in a sleeving manner, the right side of the annular ring is provided with a first radial shoulder and a second radial shoulder, a radial groove is formed between the first radial shoulder and the second radial shoulder, the outer peripheral surfaces of the first radial shoulder and the second radial shoulder are provided with a plurality of radial parabola oblique sliding sections and a plurality of radial equal-diameter arc sections, a plurality of bosses are arranged at the lower parts of the radial parabola oblique sliding sections and the middles of the radial equal-diameter arc sections, the inner side of the shell ring is abutted against the outer peripheral surfaces of the first radial shoulder and the second radial shoulder, a plurality of T-shaped expansion blocks are inserted into expansion block holes of the shell ring, and the middle belly of the side surfaces of the T-shaped expansion blocks is provided with a groove, the reset spring piece is fixed in the groove through screws, the bottom of the T-shaped expansion block abuts against the radial parabola inclined sliding sections of the first radial shoulder and the second radial shoulder of the guide seat, and the side face of the bottom of the T-shaped expansion block abuts against the side face of the small boss. The top of the T-shaped expansion block is flush with the outer surface of the shell ring, the positioning block is inserted in a positioning block hole of the shell ring, two round holes are formed in the bottom of the positioning block, one end of the ring-shaped spring is arranged in the round hole, the other end of the ring-shaped spring is located on a concave surface of a positioning block base fixed on the inner hole wall of the shell ring through a rivet, and the positioning block base moves in a radial groove between a first radial shoulder and a second radial shoulder of the guide seat.
The inner hole of the baffle plate is tightly abutted to the outer diameter of the shoulder abutting against the right side of the second radial shoulder, the outer circle of the baffle plate is flush with the outer surface of the outer shell ring, and the left side face of the baffle plate is tightly abutted to the right side face of the second radial shoulder.
The blocking piece can also be fixed on the right side surface of the second radial shoulder by screws.
The positioning block can also be replaced by a steel ball.
The outer surface of the annular ring is flush with the outer surface of the housing ring.
The positioning block base is fixed on the inner hole wall of the shell ring by a rivet.
The baffle plate is a hollow circular plate.
The shell ring is a hollow cylinder.
The guide seat is of a hollow multi-step cylindrical structure.
At least three radial parabola inclined sliding sections on the first radial shoulder and the second radial shoulder on the guide seat are provided, and at least three T-shaped expansion block holes and at least three positioning block holes are provided on the outer shell ring.
At least three T-shaped expansion blocks are provided.
There are at least three positioning blocks.
The number of the positioning block bases is at least three.
And a plurality of small bosses are arranged at the lower parts of the plurality of radial parabola inclined sliding sections and the middles of the plurality of radial equal-diameter circular arc sections.
The second radial shoulder has a shoulder on the right side to which the flap is mounted.
The utility model has the beneficial effects that:
an improved tube core expansion ring for winding shaft is structurally improved, a certain expansion force is applied to the inner ring of the expansion ring, a tube is sleeved in the expansion ring, the inner wall of the tube is sleeved by a positioning block, when the tube rotates forwards, the positioning block drives the pipe to rotate, the expansion block can move on the parabola inclined sliding section, the top surface of the expansion block can protrude out of the outer surface of the outer shell ring, thus, the top surface of the expansion block is tightly propped against the inner hole wall surface of the pipe, the pipe is driven to rotate, the material can be coiled smoothly, after the coiled material is coiled, the pipe is rotated reversely, the top surface of the expansion block and the inner hole wall surface of the pipe are released immediately, the coiled material is smoothly moved out of the surface of the expansion ring, the phenomenon that the pipe core is clamped by the expansion block is avoided, and the both ends face of the tight circle that expands does not all produce the friction with the separation blade of the tight circle axial displacement of management and control on both sides, and life is longer, and work efficiency is higher, reduces maintenance cost and maintenance duration.
Drawings
Fig. 1 is a structural schematic diagram of an improved tube core expansion ring for a winding shaft in an inoperative state.
Fig. 2 is a structural schematic diagram of the working state of the improved tube core expansion ring for the winding shaft.
Fig. 3 is a side view of the guide shoe of the present invention.
Fig. 4 is a front view of the guide holder of the present invention.
Fig. 5 is a cross-sectional view of the housing ring of the present invention.
Fig. 6 is a front cross-sectional view of the housing ring of fig. 5.
Fig. 7 is a front sectional view of a positioning block of the present invention.
FIG. 8 is a front cross-sectional view of the positioning block base of the present invention.
Fig. 9 is a front view of the expansion block of the present invention.
Fig. 10 is a side view of the expansion block of the present invention.
Fig. 11 is a schematic structural view of the baffle plate of the present invention.
FIG. 12 is a front view of the spring plate of the present invention.
Wherein: the guide seat 1, the annular ring 1.1, the first radial shoulder 1.2, the second radial shoulder 1.3, the radial groove 1.4, the small boss 1.5, the shoulder 1.6, the housing ring 2, the expansion block 3, the positioning block 4, the positioning block base 5, the catch 6 and the reset spring piece 7.
Detailed Description
Referring to fig. 1 to 11, the utility model relates to an improved tube core expansion ring for a winding shaft, which comprises a guide seat 1, a shell ring 2, a plurality of expansion blocks 3, a plurality of positioning blocks 4, a plurality of positioning block bases 5, a plurality of blocking sheets 6 and a plurality of reset spring pieces 7.
The guide seat 1 is of a hollow multi-step cylindrical structure, an annular ring 1.1 for limiting the axial displacement of the guide seat after the outer shell ring 2 is sleeved on the guide seat is arranged on the left side of the guide seat 1, a first radial shoulder 1.2 and a second radial shoulder 1.3 are arranged on the right side of the annular ring 1.1, a radial groove 1.4 is formed between the first radial shoulder 1.2 and the second radial shoulder 1.3, a plurality of radial parabola oblique sliding sections and a plurality of radial equal-diameter circular arc sections are arranged on the outer peripheral surfaces of the first radial shoulder 1.2 and the second radial shoulder 1.3, the first radial shoulder 1.2 and the second radial shoulder 1.3 are provided with three parabolic oblique sliding sections, a plurality of small bosses 1.5 are arranged at the lower parts of the plurality of radial parabola oblique sliding sections and the middles of the plurality of radial equal-diameter circular arc sections, and a shoulder 1.6 for installing a baffle 6 is arranged on the right side of the second radial shoulder 1.3.
The outer shell ring 2 is a hollow cylinder, the inner side of the outer shell ring 2 abuts against the outer peripheral surfaces of a first radial shoulder 1.2 and a second radial shoulder 1.3, a plurality of T-shaped expansion blocks 3 are inserted into expansion block holes of the outer shell ring 2, the number of the T-shaped expansion blocks 3 is three, the front surface of each T-shaped expansion block 3 is T-shaped, the middle abdomen of the side surface of each T-shaped expansion block is provided with a groove, a reset spring piece is fixed in each groove through screws, the bottom of each T-shaped expansion block 3 abuts against a radial parabolic inclined sliding section on the first radial shoulder 1.2 and the second radial shoulder 1.3 of the guide seat 1, the top of each T-shaped expansion block 3 can partially exceed the outer surface of the outer shell ring 2 when the T-shaped expansion block 3 slides upwards, a reset spring piece 7 is fixedly arranged in each groove in the middle of each T-shaped expansion block 3, the reset spring piece 7 abuts against the inner hole wall of the outer shell ring 2, and when the T-shaped expansion blocks 3 slide on the parabolic inclined sliding sections, the reset spring pieces are reset spring pieces located on the first radial shoulders 1.2 and the second radial shoulders 1.3, Moving in the radial groove 1.4 between the second radial shoulders 1.3.
The positioning block 4 is inserted into a positioning block hole of the shell ring 2, the positioning block base 5 is fixed on an inner hole wall of the shell ring 2 through a rivet, the positioning block 4 can move up and down in the positioning block base 5, two round holes are formed in the bottom of the positioning block 4, one end of the ring-shaped spring is arranged in the round hole, the other end of the ring-shaped spring is arranged on a concave surface of the positioning block base 5, the positioning block 4 is ejected out of the outer surface of the shell ring 2, the tube core is sleeved into the outer surface of the shell ring 2, the positioning block 4 retracts and moves radially after overcoming the pressure of the spring, the top of the positioning block 4 is tightly abutted to the inner surface of the tube core and can drive the tube core to move radially, and in addition, the positioning block 4 can be replaced by steel balls. The positioning block base 5 moves in a radial groove 1.4 between a first radial shoulder 1.2 and a second radial shoulder 1.3 of the guide seat 1.
The guide seat 1 is characterized in that a first radial shoulder 1.2, a second radial shoulder 1.3, a small boss 1.5 in the middle of the lower part of the radial parabola inclined sliding section and the equal-diameter circular arc section of the guide seat have a limiting effect at the bottom of the T-shaped expansion block 3. The side surface of the bottom of the T-shaped expansion block 3 is propped against the side surface of the small boss 1.5. The top of the T-shaped expansion block 3 is level with the outer surface of the outer shell ring 2, and when the bottom of the T-shaped expansion block 3 moves radially on the inclined sliding section, the top of the T-shaped expansion block 3 is higher than the outer surface of the outer shell ring 2.
After the structure of the technical scheme is adopted, a certain expansion force is given to the inner ring of the expansion ring, after the pipe is sleeved in the expansion ring, the inner hole wall of the pipe is propped by the positioning block, when the pipe rotates forwards, the positioning block drives the pipe to rotate, the expansion block can move on the parabola inclined sliding section, the top surface of the expansion block can protrude out of the outer surface of the outer shell ring, thus the top surface of the expansion block is tightly propped against the inner hole wall surface of the pipe to drive the pipe to rotate, the material can be coiled smoothly, after the coiled material is coiled, the pipe is rotated reversely, the top surface of the expansion block and the inner hole wall surface of the pipe are loosened immediately, and the coiled material is reset and smoothly moved out of the surface of the expansion ring, the phenomenon that the tube core is blocked by the expansion block is avoided, and the friction surfaces at the two ends of the expansion ring do not generate friction with the blocking pieces controlling the axial displacement of the expansion ring at the two sides, the service life is longer, the working efficiency is higher, and the maintenance cost and the maintenance time are reduced.
Claims (10)
1. The utility model provides an improved generation is tube core tight ring that expands for winding axle which characterized in that: the spring leaf resetting device comprises a guide seat, a shell ring, a plurality of expansion blocks, a plurality of positioning block bases, a plurality of blocking pieces and a plurality of spring leaves, wherein an annular ring is arranged on the guide seat, a first radial shoulder and a second radial shoulder are arranged on the right side of the annular ring, a radial groove is formed between the first radial shoulder and the second radial shoulder, a plurality of radial parabola oblique sliding sections and a plurality of radial equal-diameter circular arc sections are arranged on the outer peripheral surfaces of the first radial shoulder and the second radial shoulder, a plurality of bosses are arranged at the lower parts of the radial parabola oblique sliding sections and in the middles of the radial equal-diameter circular arc sections, the inner side of the shell ring is abutted against the outer peripheral surfaces of the first radial shoulder and the second radial shoulder, a plurality of T-shaped expansion blocks are inserted into expansion block holes of the shell ring, the middle belly of the side surfaces of the T-shaped expansion blocks is provided with a groove, a resetting spring leaf is fixed in the groove by a screw, and the bottom of the T-shaped expansion blocks is abutted against the first radial shoulder, the second radial shoulder of the guide seat, The radial parabola inclined sliding sections of the second radial circular bead are abutted, the bottom side face of the T-shaped expansion block is abutted against the side face of the small boss, the positioning block is inserted into a positioning block hole of the shell ring, two round holes are formed in the bottom of the positioning block, one end of the ring-shaped spring is arranged in the round hole, the other head of the ring-shaped spring is arranged on the concave face of the positioning block base, the positioning block base is fixed on the inner ring face of the shell ring through rivets, and the positioning block base moves in a radial groove between the first radial circular bead and the second radial circular bead of the guide seat.
2. The improved tube core expansion ring for the winding shaft as claimed in claim 1, wherein: the inner hole of the separation blade is tightly abutted to the outer diameter of the shoulder abutting against the right side of the second radial shoulder, the outer circle of the separation blade is equal to the outer surface of the outer shell ring, and the left side face of the separation blade is tightly abutted to the right side face of the second radial shoulder.
3. The improved tube core expansion ring for the winding shaft as claimed in claim 1, wherein: the positioning block can also be replaced by a steel ball.
4. The improved tube core expansion ring for the winding shaft as claimed in claim 1, wherein: the outer surface of the annular ring is flush with the outer surface of the housing ring.
5. The improved tube core expansion ring for the winding shaft as claimed in claim 1, wherein: the positioning block base is fixed on the inner hole wall of the shell ring by a rivet.
6. The improved tube core expansion ring for the winding shaft as claimed in claim 1, wherein: the baffle plate is a hollow circular plate.
7. The improved tube core expansion ring for the winding shaft as claimed in claim 1, wherein: the shell ring is a hollow cylinder.
8. The improved tube core expansion ring for the winding shaft as claimed in claim 1, wherein: the guide seat is of a hollow multi-step cylindrical structure.
9. The improved tube core expansion ring for the winding shaft as claimed in claim 1, wherein: and a plurality of small bosses are arranged at the lower parts of the plurality of radial parabola inclined sliding sections and the middles of the plurality of radial equal-diameter circular arc sections.
10. The improved tube core expansion ring for the winding shaft as claimed in claim 1, wherein: the second radial shoulder has a shoulder on the right side to which the flap is mounted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121495068.3U CN215402363U (en) | 2021-07-02 | 2021-07-02 | Improved tube core expansion ring for winding shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121495068.3U CN215402363U (en) | 2021-07-02 | 2021-07-02 | Improved tube core expansion ring for winding shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215402363U true CN215402363U (en) | 2022-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121495068.3U Active CN215402363U (en) | 2021-07-02 | 2021-07-02 | Improved tube core expansion ring for winding shaft |
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| Country | Link |
|---|---|
| CN (1) | CN215402363U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114634065A (en) * | 2022-04-01 | 2022-06-17 | 威海光威精密机械有限公司 | Automatic expansion method for paper tube |
-
2021
- 2021-07-02 CN CN202121495068.3U patent/CN215402363U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114634065A (en) * | 2022-04-01 | 2022-06-17 | 威海光威精密机械有限公司 | Automatic expansion method for paper tube |
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