CN219213241U - Cutting device for cutting elastomer profiles - Google Patents
Cutting device for cutting elastomer profiles Download PDFInfo
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- CN219213241U CN219213241U CN202223183106.9U CN202223183106U CN219213241U CN 219213241 U CN219213241 U CN 219213241U CN 202223183106 U CN202223183106 U CN 202223183106U CN 219213241 U CN219213241 U CN 219213241U
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Abstract
The utility model relates to a cutting device for cutting an elastomer profile, which is supported in a support plane, wherein the cutting device comprises a blade which is movable along a cutting line in a cutting direction parallel to the support plane for cutting through the elastomer profile, wherein the cutting device comprises a conveyor for supporting the elastomer profile in the support plane and for conveying the elastomer profile in a conveying direction transverse to the cutting direction, wherein the cutting device further comprises a movable conveyor section downstream of the cutting line in the conveying direction for lifting the elastomer profile relative to the support plane in a lifting direction transverse to the support plane.
Description
The present application is a divisional application of the utility model patent application with the application number 202122290116.1 and the application date 2021, 9 and 22, and the utility model name of the cutting device for cutting the elastomer section.
Technical Field
The present utility model relates to a cutting device for cutting elastomeric profiles, in particular uncured rubber profiles to form tyre components.
Background
The known cutting device comprises a conveyor for conveying the elastomeric profile in a conveying direction parallel to the longitudinal direction of the profile. The known cutting device further comprises a blade for cutting through the elastomeric profile in a cutting direction transverse to the longitudinal direction of the elastomeric profile.
Disclosure of Invention
A disadvantage of the known cutting device is that the uncured rubber section is heavy and tacky and tends to adhere to the upper side of the blade. As a result, the blade encounters great friction in the cutting direction, which affects the cutting action. Furthermore, uncured rubber material may accumulate on the blade surface, which further affects the cutting of the blade.
The utility model aims to provide a cutting device which can improve the cutting of uncured rubber section by a blade.
According to a first aspect, the utility model relates to a cutting device for cutting an elastomer profile, which is supported in a support plane, wherein the cutting device comprises a blade which is movable along a cutting line in a cutting direction parallel to the support plane for cutting through the elastomer profile, wherein the cutting device comprises a conveyor for supporting the elastomer profile in the support plane and for conveying the elastomer profile in a conveying direction transverse to the cutting direction, wherein the cutting device further comprises a movable conveyor section downstream of the cutting line in the conveying direction for lifting the elastomer profile relative to the support plane in a lifting direction transverse to the support plane. The movable conveyor section may lift the entire width of the elastomeric profile. By lifting the elastomer profile, the position of the cut-out of the knife in the elastomer profile can be adjusted. Thus, the shape of the respective leading and trailing edges can be adjusted by selectively lifting the elastomeric profile.
In an embodiment thereof, the movable conveyor section is pivotable about a pivot axis parallel to the support plane and transverse to the conveying direction. Thus, the movable conveyor section may form a ramp or inclined surface extending downwards in the conveying direction.
In an embodiment thereof, the cutting device comprises a conveyor lifting actuator for pivoting the movable conveyor section about a pivot axis. The actuator may be, for example, a cylinder.
In an embodiment thereof, the cutting device further comprises a stopper for limiting the travel of the conveyor lifting actuator.
In an embodiment thereof, the position of the stop is adjustable to be able to adjust the stroke of the conveyor lifting actuator. Thus, the conveyor elevation can be adjusted by adjusting the position of the stop.
In a preferred embodiment thereof, the cutting device further comprises a stopper driver for adjusting the position of the stopper. Preferably, the limiter driver is a spindle driver or a servo motor. The stopper driver may actively and/or progressively adjust the position of the stopper. Thus, the stroke of the conveyor lifting actuator may be actively and/or progressively adjusted.
In an embodiment thereof, the conveyor is a roller conveyor with a plurality of first conveyor rollers for conveying the elastomeric profile in the conveying direction.
In an embodiment thereof, the movable conveyor section comprises a plurality of second conveyor rollers for conveying the elastomeric profile in a conveying direction.
The various aspects and features described and illustrated in the specification can be applied separately wherever possible. These individual aspects may be the subject of the divisional patent application.
Drawings
The utility model will be elucidated on the basis of an exemplary embodiment shown in the drawings, in which:
FIGS. 1-3 illustrate top views of a cutting device according to the present utility model during exemplary steps of cutting a tire component;
FIG. 4 shows a cross-sectional view according to line IV-IV in FIG. 3;
FIG. 5 shows a cross-sectional view according to line V-V in FIG. 3;
FIG. 6 shows a cross-sectional view according to line VI-VI in FIG. 2;
FIG. 7 shows a cross-sectional view according to line VII-VII in FIG. 3; and
fig. 8 shows a cross-sectional view of an alternative cutting device according to another embodiment of the utility model.
Detailed Description
Fig. 1-7 show an embodiment of a cutting device 1 according to the utility model for cutting an elastomer profile 9, in particular an uncured rubber profile. In particular, the cutting device 1 is arranged for cutting the tread of a tire from said elastomeric profile 9.
In this particular embodiment, the cutting device 1 comprises a conveyor 8, in particular a roller conveyor, for supporting the elastomeric profile 9 in the support plane P. Alternatively, the cutting device 1 may for example comprise a cutting table. The conveyor 8 comprises a plurality of first conveyor rollers 80 for conveying the elastomeric profile 9 in the conveying direction T.
The cutting device 1 further comprises a blade 2 for cutting the elastomeric profile 9 along a cutting line K. The cutting line extends in a cutting direction a parallel to the support plane P. The cutting direction a extends transversely to the conveying direction T. In this particular embodiment, the cutting direction a extends perpendicularly or substantially perpendicularly to the conveying direction T.
As best shown in fig. 1-3, the cutting device 1 comprises a blade actuator 5 for moving the blade 2 back and forth along the cutting line K in the cutting direction a. In particular, the blade actuator 5 is a linear drive. In the embodiment shown in the figures, the blade actuator 5 is a linear belt drive.
The blade 2 comprises a blade body 20 having a first blade surface 22 and a second blade surface 23 ending in a cutting edge 21. The second blade surface 23 is opposite the first blade surface 22 with respect to the blade body 20. The first blade surface 22 faces away from the support plane P. Thus, the second blade surface 23 faces the support plane P.
The cutting device 1 may further comprise an air gun (not shown) arranged for blowing an air flow over the first blade surface 22. The air flow may remove rubber particles from the first blade surface 22. In addition, the air flow may cool the blade 2.
As best seen in fig. 4, the blade 2, in particular the cutting edge 21, extends away from the cutting line K on a first side of said cutting line K. The cutting edge 21 extends at a sharp cutting angle B with respect to the support plane P. Thus, when the blade 2 cuts through the elastomeric profile 9 downstream of the blade 2 in the cutting direction a, an inclined leading end LE is formed to the elastomeric profile 9 at the first side of the cutting line K. Thus, a reversely inclined trailing end TE is formed for the elastomeric profile 9 at a second side of the cutting line K opposite to the first side.
As best shown in fig. 1-3, the blade 2 also rotates about an axis perpendicular to the support plane P with respect to the cutting line K. In particular, the cutting edge 21 extends at an oblique blade angle D with respect to the cutting line K.
As shown in fig. 4 and 5, in this particular embodiment, the conveyor 8 further comprises a support beam 81 for supporting the elastomeric profile 9 at or near the cutting line K. As best shown in fig. 1-3, 6 and 7, the cutting device 1 further comprises a first press roll 4 for pressing the elastomeric profile 9 against the support plane P. In particular, the first press roll 4 is arranged to press the elastomeric profile 9 onto the support beam 81. The first press roll 4 is arranged upstream of the blade 2 in the cutting direction a. More specifically, the first press roller 4 may be moved in the cutting direction a together with the blade 2. Preferably, the first press roll 4 is coupled to a blade actuator 5 (not shown). Preferably, a force is applied to the first press roll 4 in a direction transverse or perpendicular to the surface of the elastomeric profile 9. Such a force may be applied, for example, by a cylinder.
As shown in fig. 1-3 and 5-7, the cutting device 1 further comprises a lifter 3 for lifting the tail end TE of the elastomeric profile 9 with respect to the support plane P. In other words, the lifter 3 is arranged to lift the trailing end TE of the elastomeric profile 9 relative to the leading end LE of the elastomeric profile 9. The lifter 3 is arranged to lift the trailing end TE of the elastomeric profile 9 in a lifting direction L transverse to the support plane P. As best shown in fig. 1-3, the elevator 3 is arranged on the second side of the cutting line K. The lifter 3 is arranged upstream of the blade 2 in the cutting direction a.
As best shown in fig. 2, 3, 6 and 7, the lifter 3 can be moved in the cutting direction a. The lifter 3 comprises a lifter actuator 6 for driving the back and forth movement of the lifter 3 in the cutting direction a. In the embodiment shown, the lifter actuator 6 is a linear drive, in particular a linear belt drive. Preferably, the lifter 3 is arranged to move in the cutting direction a in synchronization with the blade 2. More preferably, as shown in fig. 6 and 7, the movement of the lifter 3 and the movement of the blade 2 are mechanically coupled in the cutting direction a. In particular, the cutting device 1 comprises a transmission 56 between the blade actuator 5 and the lifter actuator 6. The transmission 56 may be, for example, a drive belt. Preferably, transmission 56 has a 1:1 gear ratio.
As shown in fig. 5 and 7, the lifter 3 is arranged to lift the trailing end TE of the elastomeric profile 9 beyond the lifting height H. Preferably, the lifting height H is at least five millimeters, more preferably between ten and fifty millimeters. Preferably, the lifter 3 is arranged to lift the elastomeric profile 9 away from the first blade surface 22, i.e. to disengage the elastomeric profile 9 at least partially from the first blade surface 22.
As best shown in fig. 6 and 7, the lifter 3 is a telescopic support element that can extend in the cutting direction a. The telescopic support element extends at least partially at a lifting height H. The telescopic support element comprises a plurality of pulleys 30 and a lifter belt 31, the lifter belt 31 being arranged around said plurality of pulleys 30 to support the elastomeric profile 9. In particular, the lifter belt 31 extends along a belt path S around the plurality of pulleys 30. The pulleys of the plurality of pulleys 30 are mounted to a carriage 35 or gantry movable in the cutting direction a.
As shown in fig. 1-3, 6 and 7, the lifter belt 31 has a limited length. Alternatively, the lifter belt 31 may be an endless belt, in other words, the telescopic support element may be a telescopic belt conveyor. The elevator belt 31 extends between a first terminal end 32 and a second terminal end 33 via a plurality of pulleys 30. The first terminal 32 is arranged upstream of the carriage 35 in the cutting direction a. The second terminal 33 is arranged downstream of the carriage 35 in the cutting direction a. The first terminal 32 is fixed in the cutting direction a. Preferably, the second terminal 33 is also fixed with respect to the cutting direction a. Alternatively, the second terminal end may be biased to tension the riser belt 31, for example by a torsion spring.
The elevator belt 31 extends at an elevation H along at least a portion of the belt path S between the first terminal end 32 and the plurality of pulleys 30. The pulleys of the plurality of pulleys 30 are arranged to gradually guide the lifter belt 31 from the lifting height H toward the support plane P. In particular, the belt path S extends from the lifting height around the plurality of pulleys 30 and below the support plane P. The pulleys 30 of the plurality of pulleys 30 thus form a ramp or inclined surface for gradually lifting the elastomeric profile 9 from the first blade surface 22.
As further shown in fig. 1-3, 6 and 7, the cutting device 1 further comprises a second press roll 42. The second press roll 42 is similar to the first press roll 4. The second press roll 42 is arranged to press the trailing end TE of the elastomeric profile 9 against the lifter belt 31. In particular, the press roller is arranged to press the trailing end TE against a ramp or inclined surface of the belt path S formed by the plurality of pulleys 30. Preferably, a second press roller 42 is arranged opposite one of the pulleys 30 with respect to the lifter belt 31. The second press roller 42 is movable in the cutting direction a together with the blade 2. Preferably, the second press roll 42 is coupled to the blade actuator 5 (not shown). Preferably, a force is applied to the second press roller 4 in a direction transverse or perpendicular to the slope or inclined surface of the belt path S formed by the plurality of pulleys 30. Such a force may be applied, for example, by a cylinder.
The method of cutting an elastomeric profile 9 using the cutting device 1 according to the utility model will now be described using fig. 2-7.
As shown in fig. 2 and 6, the elastomeric profile 9 has been conveyed on the conveyor 8 in the conveying direction T. The elastomer profile 9 extends above the cutting line K in the conveying direction. The blade 2 and the lifter 3 are arranged downstream of the elastomeric profile 9 in the cutting direction a. The press roll 4 presses the elastomeric profile 9 against the support beam 81 at the first side of the cutting line K in the cutting direction a and upstream of the blade 2.
As shown in fig. 3 and 7, the blade 2 has been moved in the cutting direction a to cut through the elastomeric profile 9. The press roll 4 has moved together with the blade 2 and presses the elastomeric profile 9 to the support beam 81 downstream of the blade 2 in the cutting direction a.
As shown in fig. 4, when cutting through the elastomeric profile 9, the blade 2 forms a leading end LE on a first side of the cutting line K and a trailing end TE on a second side of the cutting line K. The trailing end TE is lifted slightly in the lifting direction L by the blade 2.
Upstream of the cutting direction a, the elastomeric profile 9 is further lifted by the lifter belt 31 towards the lifting height H, as shown in fig. 7.
The blade 2 and the lifter 3 are now advanced further in the cutting direction a until the elastomeric profile 9 is completely severed (not shown). The cut-off portions of the elastomer profile 9 can then be conveyed further in the conveying direction T. The blade 2 and the lifter 3 are moved back to their initial positions as shown in fig. 2 and 6. The remaining part of the elastomer profile 9 can then be conveyed in the conveying direction T for the next cut.
Fig. 8 shows an alternative cutting device 101 according to an alternative embodiment of the utility model. The alternative cutting device 101 differs from the cutting device 1 discussed previously in that: it comprises a movable conveyor section 108 for lifting the elastomeric profile 9 relative to the support plane P in a lifting direction transverse to the support plane P. The movable conveyor section 108 is located downstream of the blade 2 in the conveying direction T. Preferably, the movable conveyor section 108 is arranged to lift the entire width of the elastomeric profile 9.
The movable conveyor section 108 comprises a plurality of second conveyor rollers 180 for conveying the elastomeric profile in the conveying direction T. The movable conveyor section 108 may pivot about a pivot axis G at a pivot angle F. In particular, the movable conveyor section 108 may pivot about the pivot axis G between a first position in which the second conveyor roller 180 extends in or substantially in the support plane P and a second position in which at least a portion of the second conveyor roller 180 has been displaced in a direction perpendicular or transverse to the support plane P.
The pivot axis G extends parallel to the support plane P. In particular, the pivot axis G extends in a direction transverse or perpendicular to the conveying direction T. Preferably, the pivot axis G is aligned with the rotation axis of the second conveyor roller 180 at the downstream end in the conveying direction T of the movable conveyor section 108.
As further shown in fig. 8, the alternative cutting device 101 comprises a conveyor lift actuator 182 for pivoting the movable conveyor section 108 about a pivot axis G. The conveyor lift actuator 182 may be, for example, a pneumatic piston.
The alternative cutting device 101 further comprises a stop 184 for limiting the travel of the conveyor lifting actuator 182. In this particular embodiment, the conveyor lift actuator 182 includes a protrusion 185, which protrusion 185 contacts the stop 184 when the movable conveyor section 108 has been pivoted about the pivot axis G by a predetermined pivot angle F.
Preferably, the position of the stop 184 is adjustable to allow for an adjustable pivot angle F. Thus, the conveyor elevation may be adjusted by adjusting the position of the stop 184. In the embodiment shown, the alternative cutting device 101 further comprises a stop drive 183 for adjusting the position of the stop 184. Preferably, the limiter driver 183 is a spindle driver or a servo motor.
The movable conveyor section 108 described above may be applied alone. In particular, the movable conveyor section 108 may be applied to any cutting device for cutting an elastomeric profile supported in a support plane, wherein the cutting device comprises a blade movable along a cutting line in a cutting direction parallel to the support plane for cutting through the elastomeric profile, wherein the cutting device comprises a conveyor for supporting the elastomeric profile in the support plane and for conveying the elastomeric profile in a conveying direction transverse to the cutting direction, wherein the cutting device further comprises a movable conveyor section downstream of the cutting line in the conveying direction for lifting the elastomeric profile relative to the support plane in a lifting direction transverse to the support plane. This aspect may be the subject of the divisional patent application.
It is to be understood that the above description is included for the purpose of illustrating the operation of the preferred embodiments and is not meant to limit the scope of the present utility model. From the foregoing discussion, those skilled in the art will recognize that many variations are still included within the scope of the present utility model.
List of reference numerals:
1. a cutting device;
2. a blade;
20. a blade body;
21. cutting the edge;
22. a first blade surface;
23. a second blade surface;
3. a lifter;
30. a plurality of pulleys;
31. a lifter belt;
32. a first terminal;
33. a second terminal;
4. a first press roller;
42. a second press roller;
5. a blade actuator;
6. a lifter actuator;
8. a conveyor;
80. a first conveyor roller;
81. a support beam;
9. an elastomer profile;
101. replacing the cutting device;
108. a movable conveyor section;
180. a second conveyor roller;
182. a conveyor lift actuator;
183. a limiter driver;
184. a stopper;
185. a protrusion;
a cutting direction;
b, cutting angle;
a blade angle D;
f, a pivoting angle;
a G pivot;
h, lifting height;
k cutting lines;
an L lifting direction;
a P supporting plane;
s-band path;
a T conveying direction;
LE front end;
and a TE tail.
Claims (9)
1. Cutting device for cutting an elastomer profile, which elastomer profile is supported in a support plane, characterized in that the cutting device comprises a blade which is movable along a cutting line in a cutting direction parallel to the support plane for cutting through the elastomer profile, wherein the cutting device comprises a conveyor for supporting the elastomer profile in the support plane and for conveying the elastomer profile in a conveying direction transverse to the cutting direction, wherein the cutting device further comprises a movable conveyor section downstream of the cutting line in the conveying direction for lifting the elastomer profile relative to the support plane in a lifting direction transverse to the support plane.
2. Cutting device according to claim 1, characterized in that the movable conveyor section is pivotable about a pivot axis parallel to the support plane and transverse to the conveying direction.
3. Cutting device according to claim 2, characterized in that the cutting device comprises a conveyor lifting actuator for pivoting the movable conveyor section about a pivot axis.
4. A cutting device according to claim 3, further comprising a stop for limiting the travel of the conveyor lifting actuator.
5. The cutting device of claim 4, wherein the position of the stop is adjustable to adjust the travel of the conveyor lift actuator.
6. The cutting device of claim 5, further comprising a stop drive for adjusting the position of the stop.
7. The cutting device according to claim 1, wherein the conveyor is a roller conveyor with a plurality of first conveyor rollers for conveying the elastomeric profile in a conveying direction.
8. Cutting device according to claim 1, characterized in that the movable conveyor section comprises a plurality of second conveyor rollers for conveying the elastomeric profile in a conveying direction.
9. A cutting device according to claim 3, wherein the conveyor lifting actuator is a cylinder.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL2026506 | 2020-09-21 | ||
| NL2026506 | 2020-09-21 | ||
| CN202122290116.1U CN218052745U (en) | 2020-09-21 | 2021-09-22 | Cutting device for cutting elastomer profiles |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122290116.1U Division CN218052745U (en) | 2020-09-21 | 2021-09-22 | Cutting device for cutting elastomer profiles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219213241U true CN219213241U (en) | 2023-06-20 |
Family
ID=84412362
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223183106.9U Active CN219213241U (en) | 2020-09-21 | 2021-09-22 | Cutting device for cutting elastomer profiles |
| CN202122290116.1U Active CN218052745U (en) | 2020-09-21 | 2021-09-22 | Cutting device for cutting elastomer profiles |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122290116.1U Active CN218052745U (en) | 2020-09-21 | 2021-09-22 | Cutting device for cutting elastomer profiles |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN219213241U (en) |
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2021
- 2021-09-22 CN CN202223183106.9U patent/CN219213241U/en active Active
- 2021-09-22 CN CN202122290116.1U patent/CN218052745U/en active Active
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| Publication number | Publication date |
|---|---|
| CN218052745U (en) | 2022-12-16 |
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