CN210189951U - High-precision die-cutting expansion shaft - Google Patents
High-precision die-cutting expansion shaft Download PDFInfo
- Publication number
- CN210189951U CN210189951U CN201920373379.9U CN201920373379U CN210189951U CN 210189951 U CN210189951 U CN 210189951U CN 201920373379 U CN201920373379 U CN 201920373379U CN 210189951 U CN210189951 U CN 210189951U
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- shell
- shaft
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- fixed claw
- spring
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- 230000005540 biological transmission Effects 0.000 claims abstract description 58
- 210000000078 claw Anatomy 0.000 claims description 49
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 230000002452 interceptive effect Effects 0.000 claims description 3
- 239000012530 fluid Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 9
- 230000009471 action Effects 0.000 description 3
- 239000012467 final product Substances 0.000 description 2
- 230000009347 mechanical transmission Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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Abstract
The utility model provides a high accuracy cross cutting axle that expands, including casing, setting at the final drive shaft that casing axial direction central point put and set up the several tile at casing radial position, wherein: each tile is provided with a radial shaft extending into the shell, and the radial shaft is meshed and connected with a transmission gear, the center of which is fixed on the shell; one end of the main transmission shaft and one cylinder body form a power cylinder structure, and a main spring is connected between the other end of the main transmission shaft and the shell; and a rack is arranged on the outer side surface of the main transmission shaft along the axial direction, and the rack is meshed with the transmission gear. Through adopting the utility model discloses a structure as long as fluid pressure in the cylinder body surpasss certain limit, how increase again, the height that the tile is bloated all is unanimous, just so can not appear that kind of the axle of traditional gasbag formula physiosis leads to the high inconsistent condition of tile axial expansion because the tile axial atress is uneven.
Description
Technical Field
The utility model relates to a high accuracy cross cutting field, atmospheric pressure passes through the inside mechanical transmission structure of physiosis axle, evenly with pressure to conduction to tile part for each position of tile inflation height equals, thereby guarantees the uniformity of epaxial material pressurized, finally reaches the requirement of high accuracy cross cutting.
Background
The air shaft is a component which is widely used in the field of die cutting machines, is mainly used for collecting and releasing materials, and is an indispensable part in the field of die cutting.
However, when the traditional air bag type inflatable shaft is used, the two axial ends of the tile are expanded to have obvious height difference due to uneven stress on the surface of the tile, so that the condition that the stress on the two axial sides of the material is uneven obviously occurs in the process of storing and releasing the material by the inflatable shaft, the precision of a final product is affected, and the problem that the precision of the final product cannot be ignored in the field of high-precision die cutting is solved.
SUMMERY OF THE UTILITY MODEL
The utility model provides a high accuracy cross cutting axle that expands reaches the purpose that makes tile axial both sides play the highly uniform that expands to guarantee that the same requirement that finally reaches high accuracy cross cutting of the axial both sides pressure that receives of epaxial material.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a high accuracy cross cutting axle that expands which characterized in that, includes the casing, sets up at the final drive shaft of casing axial direction central point position and sets up the several tile at casing radial position, wherein:
each tile is provided with a radial shaft extending into the shell, and the radial shaft is meshed and connected with a transmission gear, the center of which is fixed on the shell;
one end of the main transmission shaft and one cylinder body form a power cylinder structure, and a main spring is connected between the other end of the main transmission shaft and the shell; and a rack is arranged on the outer side surface of the main transmission shaft along the axial direction, and the rack is meshed with the transmission gear.
The high accuracy cross cutting expand axle, wherein: and a radial shaft of the tile is provided with a limiting piece capable of interfering with the shell.
The high accuracy cross cutting expand axle, wherein: the power cylinder is a normal-pressure boosting power cylinder, and the main spring is a compression spring.
The high accuracy cross cutting expand axle, wherein: the radial side of the cylinder body is provided with a plurality of radial piston rods, each radial piston rod is in power connection with a fixed claw, each fixed claw is provided with a pivot point pivoted on the shell and a claw head capable of being clamped with a rack on the main transmission shaft; the shell is also provided with an auxiliary spring which can enable the claw head of the fixed claw to be separated from the rack in clamping connection.
In general, the secondary spring is more resilient than the primary spring.
The high accuracy cross cutting expand axle, wherein: each radial piston rod is connected with a transmission arm, the transmission arm can push one end of each fixed claw along with the outward extension of the radial piston rod, the middle part of each fixed claw is pivoted on the shell to form a pivoting point, and the other end of each fixed claw forms a claw head.
The high accuracy cross cutting expand axle, wherein: the auxiliary spring is a compression spring and is arranged between the transmission arm and the shell; alternatively, the auxiliary spring is a torsion spring disposed between the fixed claw and the housing.
The high accuracy cross cutting expand axle, wherein: and the pneumatic cylinder or the hydraulic cylinder of the power cylinder.
The high accuracy cross cutting expand axle, wherein: the power cylinder is a vacuum pressurization type cylinder, and the main spring is an extension spring.
The high accuracy cross cutting expand axle, wherein: the radial side of the cylinder body is provided with a plurality of radial piston rods, each radial piston rod is in power connection with a fixed claw, each fixed claw is provided with a pivot point pivoted on the shell and a claw head capable of being clamped with a rack on the main transmission shaft; the shell is also provided with an auxiliary spring which can keep the clamping connection between the claw head of the fixed claw and the rack.
The high accuracy cross cutting expand axle, wherein: the auxiliary spring is an extension spring and is arranged between the transmission arm and the shell;
alternatively, the auxiliary spring is a torsion spring disposed between the fixed claw and the housing.
Compared with the prior art, adopt above-mentioned technical scheme the utility model has the advantages of: as long as the size of the transmission gear is consistent and the precision of other parts reaches the standard, the axial expansion height of the tile is consistent no matter the tile is subjected to external pressure in any direction and any position. Therefore, the condition that the axial expansion height of the tiles is inconsistent due to the fact that the tiles are stressed unevenly in the axial direction in the conventional air bag type inflatable shaft is avoided. Simultaneously because the fixed action of stationary dog, the tile can not be like the rebound of traditional gasbag formula physiosis axle when receiving external pressure and retract to avoided the tile to retract and leaded to its and the material contact failure and then the material that arouses and skid.
Drawings
Fig. 1 is the utility model provides a section structure schematic diagram of high accuracy cross cutting bloated axle.
Description of reference numerals: a main transmission shaft 1; a main spring 2; a front block 3; a tile 4; a radial axis 5; a limiting sheet 6; a transmission gear 7; a housing 8; a middle stop block 9; a fixed jaw 10; an auxiliary spring 11; a drive arm 12; a radial piston rod 13; a cylinder 14; and a flow passage 15.
Detailed Description
Some specific embodiments of the invention will be described in detail below, by way of example and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale.
The utility model discloses mainly be applied to high accuracy cross cutting field, thereby replace traditional gasbag inflation to make through mechanical transmission the utility model discloses a tile of physiosis axle is played to expand highly at the axial and is kept unanimous. Therefore, the material wound on the air expansion shaft can not be stressed unevenly on two axial sides.
As shown in fig. 1, a high precision die cutting expansion shaft comprises a hard shell 8, a main transmission shaft 1 disposed at an axial center position of the shell 8, and a plurality of tiles 4 disposed at radial positions of the shell 8, wherein:
each tile 4 is provided with a radial shaft 5 extending into the shell 8, one side of the radial shaft 5 is limited in axial position by a front stop 3 and a middle stop 9 fixed in the shell 8, and the other side of the radial shaft is meshed and connected with a transmission gear 7 fixed on the shell 8 in the center position;
a rack is arranged on the outer side surface of the main transmission shaft 1 along the axial direction, and the rack is meshed with the transmission gear 7; in this embodiment, one end of the main transmission shaft 1 is a piston structure, which forms a power cylinder structure with a cylinder body 14 fixed to the housing 8, and a main spring 2 is connected between the other end and the housing 8;
the power cylinder can be a pneumatic cylinder or a hydraulic cylinder.
In this case, when the cylinder 14 is pressurized through the flow passage 15, the main transmission shaft 1 moves axially toward one side (e.g., moves toward the main spring in fig. 1), and the tiles 4 move radially outward to the blocking position through the transmission of the transmission gear 7, so as to expand the shaft; when the pressure in the cylinder 14 is released, the main transmission shaft 1 moves axially towards the other side (moves rightwards in fig. 1) under the action of the elastic restoring force of the main spring 2, and the tiles 4 move towards the radial inner side through the transmission of the transmission gear 7 and shrink to the surface of the shell 8.
In order to prevent the tile 4 from being expanded excessively so that the radial shaft 5 is completely separated from the meshing connection of the transmission gear 7, a limiting piece 6 capable of interfering with the shell 8 is arranged on the radial shaft 5 of the tile 4, and when the tile 4 is expanded to a preset size, the limiting piece 6 interferes with the shell 8 to prevent the tile 4 from being expanded continuously.
By the utility model discloses an inner structure can know, as long as drive gear 7's size of a dimension is unanimous, and the precision of each part of other is up to standard, so the tile no matter receives the external pressure of any direction, any position, the meshing structure of each transmission shaft and gear can mutual fixation position each other to guarantee the tile axial and expand the uniformity of height. Therefore, the condition that the axial expansion height of the tiles is inconsistent due to the fact that the tiles are stressed unevenly in the axial direction in the conventional air bag type inflatable shaft is avoided.
In addition, in order to avoid the size of an expansion shaft formed by the tiles 4 caused by pressure fluctuation in the cylinder 14 from fluctuating and possibly rebound retraction caused by external pressure, the utility model discloses a plurality of radial piston rods 13 are also arranged on the radial side of the cylinder 14, each radial piston rod 13 is connected with a transmission arm 12, the transmission arm 12 can push one end of a fixed claw 10 along with the extension of the radial piston rod 13, the middle part of the fixed claw 10 is pivoted on the shell 8 to form a pivot point, so that a claw head formed by the other end of the fixed claw 10 can form a clamping connection with a rack on the main transmission shaft 1; in order to facilitate the automatic retraction of the radial piston rod 13, an auxiliary spring 11 is also provided between the transmission arm 12 and the housing 8, while the compression spring force of the auxiliary spring 11 is typically greater than that of the main spring 2.
Of course, the pivot point between the fixed claw 10 and the housing 8 is not limited to be disposed in the middle of the fixed claw 10, and may also be disposed at one end, and the middle of the fixed claw 10 is connected to the transmission arm 12, which is also a possible technical solution, and will not be described in detail herein. The assist spring 11 may be a torsion spring provided between the fixed claw 10 and the housing 8.
In this way, since the compression spring force of the assist spring 11 is larger than that of the main spring 2, the main drive shaft 1 operates prior to the radial piston rod 13 when the cylinder is pressurized. After proper correction, the radial piston rod 13 can be completely extended out after the tile 4 is expanded to the maximum diameter position, so that the claw head of the fixed claw 10 is clamped with the rack of the main transmission shaft 1, and at the moment, if slight fluctuation of fluid pressure in the cylinder body 14 occurs or accidental pressure occurs outside the tile 4, the main transmission shaft 1 cannot move left and right due to the mechanical clamping relation between the fixed claw 10 and the main transmission shaft 1, and the diameter of the expansion shaft is prevented from correspondingly fluctuating; when the fluid in the cylinder 14 is decompressed, the radial piston rod 13 retracts in advance because the compression elasticity of the auxiliary spring 11 is larger than that of the main spring 2, so that the claw head of the fixed claw 10 is separated from the clamping relation with the main transmission shaft 1, and then the main spring 2 pushes the main transmission shaft 1 to retract, thereby avoiding the situation that the main transmission shaft 1 cannot retract.
The above case is only the case where the cylinder 14 is of a normal pressure booster type.
When the cylinder body 14 is a vacuum pressurization type cylinder, the main spring 2 and the auxiliary spring 11 can use an extension spring (or a torsion spring), and in this case, the action of the main spring 2 and the auxiliary spring 11 is not reset but provides an assistance force for the expansion of the tile. The tension of the main spring 2 is generally greater than that of the auxiliary spring 11, so that the main transmission shaft 2 acts before the radial piston rod 13 during charging and pressurizing, and the vacuum cylinder 14 first sucks back the radial piston rod 13 with insufficient tension during pumping and depressurizing, and then pulls back the main transmission shaft 1 with larger tension.
The structure has the advantages that the elastic force of the main spring and the auxiliary spring and the fluid in the cylinder can provide the pushing force for the tile during expansion, but the structure of the vacuum cylinder has greater requirements on the material and the structure of the inflatable shaft, and the cost is higher. The external pressurizing devices (pneumatic pump, hydraulic pump) of the inflatable shaft must have the functions of air suction/liquid suction, and in order to ensure the inflation force of the inflatable shaft tile, the external pressurizing devices (pneumatic pump, hydraulic pump) should be capable of being inflated/charged, which undoubtedly increases the cost of the external pressurizing devices. This scheme is therefore an alternative.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. The utility model provides a high accuracy cross cutting axle that expands which characterized in that, includes the casing, sets up at the final drive shaft of casing axial direction central point position and sets up the several tile at casing radial position, wherein:
each tile is provided with a radial shaft extending into the shell, and the radial shaft is meshed and connected with a transmission gear, the center of which is fixed on the shell;
one end of the main transmission shaft and one cylinder body form a power cylinder structure, and a main spring is connected between the other end of the main transmission shaft and the shell; and a rack is arranged on the outer side surface of the main transmission shaft along the axial direction, and the rack is meshed with the transmission gear.
2. The high precision die cutting expansion shaft of claim 1, wherein: and a radial shaft of the tile is provided with a limiting piece capable of interfering with the shell.
3. The high precision die cutting expansion shaft of claim 1, wherein: the power cylinder is a normal-pressure boosting power cylinder, and the main spring is a compression spring.
4. The high precision die cutting expansion shaft of claim 3, wherein: the radial side of the cylinder body is provided with a plurality of radial piston rods, each radial piston rod is in power connection with a fixed claw, each fixed claw is provided with a pivot point pivoted on the shell and a claw head capable of being clamped with a rack on the main transmission shaft; the shell is also provided with an auxiliary spring which can enable the claw head of the fixed claw to be separated from the rack in clamping connection.
5. The high precision die cutting expansion shaft of claim 4, wherein: each radial piston rod is connected with a transmission arm, the transmission arm can push one end of each fixed claw along with the outward extension of the radial piston rod, the middle part of each fixed claw is pivoted on the shell to form a pivoting point, and the other end of each fixed claw forms a claw head.
6. The high precision die cutting expansion shaft of claim 5, wherein: the auxiliary spring is a compression spring and is arranged between the transmission arm and the shell;
alternatively, the auxiliary spring is a torsion spring disposed between the fixed claw and the housing.
7. The high precision die cutting expansion shaft of claim 3, wherein: and the pneumatic cylinder or the hydraulic cylinder of the power cylinder.
8. The high precision die cutting expansion shaft of claim 1, wherein: the power cylinder is a vacuum pressurization type cylinder, and the main spring is an extension spring.
9. The high precision die cutting expander roll of claim 8, wherein: the radial side of the cylinder body is provided with a plurality of radial piston rods, each radial piston rod is in power connection with a fixed claw, each fixed claw is provided with a pivot point pivoted on the shell and a claw head capable of being clamped with a rack on the main transmission shaft; the shell is also provided with an auxiliary spring which can keep the clamping connection between the claw head of the fixed claw and the rack.
10. The high precision die cutting expander roll of claim 9, wherein: each radial piston rod is connected with a transmission arm, the transmission arm can push one end of each fixed claw along with the outward extension of the radial piston rod, the middle part of each fixed claw is pivoted on the shell to form a pivoting point, and the other end of each fixed claw forms a claw head;
the auxiliary spring is an extension spring and is arranged between the transmission arm and the shell;
alternatively, the auxiliary spring is a torsion spring disposed between the fixed claw and the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920373379.9U CN210189951U (en) | 2019-03-22 | 2019-03-22 | High-precision die-cutting expansion shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920373379.9U CN210189951U (en) | 2019-03-22 | 2019-03-22 | High-precision die-cutting expansion shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210189951U true CN210189951U (en) | 2020-03-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920373379.9U Withdrawn - After Issue CN210189951U (en) | 2019-03-22 | 2019-03-22 | High-precision die-cutting expansion shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210189951U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110722619A (en) * | 2019-03-22 | 2020-01-24 | 北京中鼎高科自动化技术有限公司 | High-precision die-cutting expansion shaft |
| CN112047204A (en) * | 2020-09-23 | 2020-12-08 | 邵宇航 | Raw thread wool-sticking winding device for textile processing |
-
2019
- 2019-03-22 CN CN201920373379.9U patent/CN210189951U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110722619A (en) * | 2019-03-22 | 2020-01-24 | 北京中鼎高科自动化技术有限公司 | High-precision die-cutting expansion shaft |
| CN110722619B (en) * | 2019-03-22 | 2024-09-06 | 北京中鼎高科自动化技术有限公司 | High-precision die-cutting expansion shaft |
| CN112047204A (en) * | 2020-09-23 | 2020-12-08 | 邵宇航 | Raw thread wool-sticking winding device for textile processing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200327 Effective date of abandoning: 20240906 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20200327 Effective date of abandoning: 20240906 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |