CN218666486U - Positioning and centering device and industrial textile machine - Google Patents
Positioning and centering device and industrial textile machine Download PDFInfo
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- CN218666486U CN218666486U CN202222282072.2U CN202222282072U CN218666486U CN 218666486 U CN218666486 U CN 218666486U CN 202222282072 U CN202222282072 U CN 202222282072U CN 218666486 U CN218666486 U CN 218666486U
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- service
- centering
- textile machine
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- operating
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H54/00—Winding, coiling, or depositing filamentary material
- B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
- B65H54/22—Automatic winding machines, i.e. machines with servicing units for automatically performing end-finding, interconnecting of successive lengths of material, controlling and fault-detecting of the running material and replacing or removing of full or empty cores
- B65H54/26—Automatic winding machines, i.e. machines with servicing units for automatically performing end-finding, interconnecting of successive lengths of material, controlling and fault-detecting of the running material and replacing or removing of full or empty cores having one or more servicing units moving along a plurality of fixed winding units
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H13/00—Other common constructional features, details or accessories
- D01H13/005—Service carriages travelling along the machines
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H9/00—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine
- D01H9/02—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine for removing completed take-up packages and replacing by bobbins, cores, or receptacles at take-up stations; Transferring material between adjacent full and empty take-up elements
- D01H9/08—Doffing arrangements independent of spinning or twisting machines
- D01H9/10—Doffing carriages ; Loading carriages with cores
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H15/00—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing
- D01H15/013—Carriages travelling along the machines
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
Positioning and centering device and industrial textile machine. The industrial textile machine comprises at least two operating units and at least one service trolley for the operating units. The positioning and centering device comprises: a password section provided on each operation unit; the optical reader is arranged on the service vehicle and is suitable for reading the password part; and a control unit operatively connected to the optical reader and the drive device. The password section includes: a centering reference for centering the optical reader with respect to the code section; and an identification code of the operation unit, the password section being provided on the operation unit. In accordance with the service request signal from the operating unit, the control unit is adapted to: an operation driving device for moving at least one service cart to the operation unit, wherein the password part comprises an identification code of the operation unit requesting the service; and the service vehicle is centered with respect to the operation unit based on the centering reference of the password section. The application of a positioning and centering device and an industrial textile machine enables the positioning and centering of a service trolley of the textile machine to be effectively and accurately carried out.
Description
Technical Field
The present application relates to a positioning and centering device for a service cart (service cart) of a textile machine, a textile machine comprising the device and a method for positioning and centering a service cart in a textile machine.
Background
As is known, industrial textile machines (such as spinning and winding machines) widely use automatic or semi-automatic service trolleys for carrying out technical process operations which would otherwise be carried out manually, for example for doffing or taking-up yarn shafts after a yarn break.
These are extremely complex articulated electromechanical devices which must perform their operating cycle very accurately so as not to affect the productivity of the machine and the quality of the yarn.
In a manner known per se, the unit that is to perform a particular operating cycle sends a signal to the service trolley (or one of the service trolleys) which, after arrival at the unit, places itself in the unit.
In this case, the problem arises of improving the position control of the service trolley, concerning the identification of the unit on which the operating cycle is to be performed, and concerning the centering of the trolley with respect to this unit.
In this respect, it is known to use a centring device comprising a mechanical system comprising stops, for example electrically or pneumatically operated telescopic rods, provided on the service trolley, which engage with corresponding seats made in fixed positions of the unit. In addition, the device comprises an optical LED positioning system of the transmitter/receiver type, which enables the service trolley to decode the unit identification code, for example its number.
This solution, although widely appreciated and used, has drawbacks, such as: mechanical wear caused by the repeatability of the positioning cycle, dirt generated by the textile environment, can damage the kinematic characteristics of the centering unit over time; inaccuracies can arise from elastic deformation of the structure affected by the weight of the service trolley; there is a need for a dedicated drive and associated electrical equipment; and, in the event of inaccurate centering, the drive may be subject to undesirable stresses that follow.
Furthermore, the mechanical centering system cannot be customized for each unit, since it is the same for all units of the same area.
Another known solution again provides an optical communication system between the service trolley and the unit, but the mechanical centering is replaced by a reflective system using reflectors. In this case, however, the function of the optical communication system is particularly impaired by dirt caused by the cellulose deposited thereon, partly or completely covering the reflector.
It is also known to use a laser provided with a service trolley which can read the protrusions of the reference element of the unit, typically a parallelepiped-shaped plastic plate. From the projected multiple point readings, the cart can interpolate a nominal centering position. The unit number is identified by a radio frequency system, and an antenna on the trolley generates an electric field to excite a circuit of a passive tag arranged on the handpiece.
Finally, optical positioning and centering systems using laser pointers and bar codes are known. The cell number is identified by the number contained in the code and the centering is achieved by two or more barcode subcodes placed in equidistant succession, whereby the nominal centering position is obtained by linear interpolation of the above mentioned sub-positions. However, this solution implies that several subcodes are required to ensure accurate positioning, thereby increasing the footprint of the code.
SUMMERY OF THE UTILITY MODEL
Accordingly, there is a need to address the mentioned shortcomings and limitations of the prior art.
It is therefore desirable to provide a device, a textile machine and a method which enable the positioning and centering of a service trolley of the textile machine to be carried out efficiently and accurately.
According to the present application, a positioning and centering device for a service trolley of a textile machine, an industrial textile machine and a method for positioning and centering a service trolley in a textile machine, such a requirement is satisfied.
Positioning and centering device according to an aspect of the present application, for a service trolley of a textile machine comprising at least two operating units, comprising: a password section provided on each of the operation units; the optical reader is arranged on the service trolley and is suitable for reading the password part; and a control unit operatively connected to the optical reader and the drive device. The password section includes: a centering reference for centering the optical reader relative to the cryptographic section; and an identification code of the operation unit on which the password section is provided. In accordance with a service request signal from an operating unit, the control unit is adapted to: operating the drive device to move at least one of the service carts to the operating unit, the cryptographic portion of the operating unit read by the optical reader containing the identification code of the operating unit requesting service; and centering the service cart with respect to the operation unit based on the centering reference of the password section.
Further, the password portion is a QR code.
Industrial textile machine according to another aspect of the present application, comprising at least two operating units and at least one service trolley for said operating units and provided with drive means, further comprising positioning and centering means for positioning and centering said service trolley with respect to said operating units, said positioning and centering means comprising: a password section provided on each of the operation units; the optical reader is arranged on the service trolley and is suitable for reading the password part; and a control unit operatively connected to the optical reader and the drive device. The password section includes: a centering reference for centering the optical reader relative to the cryptographic section; and an identification code of the operation unit, wherein the password section is provided on the operation unit. In accordance with a service request signal from the operating unit, the control unit is adapted to: operating the drive device to move at least one of the service carts to the operating unit, the password portion of the operating unit containing the identification code of the operating unit requesting service; and centering the service cart with respect to the operation unit according to the centering reference of the password part.
Further, the password portion is a QR code.
Further, the QR code is a square having a side of at least 25 mm.
Further, the password section further includes an operation unit identification code readable by an operator.
Further, the industrial textile machine is a spinning machine.
Further, the industrial textile machine is a winder.
Further, the service trolley is a doffer of the automatic or semi-automatic type.
Further, the service trolley is a splice trolley of the automatic or semi-automatic type.
Further, the control unit is centralized and in operative communication with a plurality of the operating units and at least one of the service carts.
Drawings
Other characteristics and advantages of the present application will be more clearly understood from the following description of preferred and non-limiting embodiments thereof, made in the accompanying drawings:
fig. 1 schematically shows a textile machine comprising a device for positioning and centering a service trolley according to a possible embodiment of the present application.
Fig. 2 schematically shows a unit of a textile machine comprising a part of a positioning and centering device of a service trolley according to a possible embodiment of the present application.
Fig. 3 schematically shows a unit of textile machine and service trolley comprising a device for positioning and centering the service trolley according to a possible embodiment of the present application.
Fig. 4 schematically shows components of a textile machine according to a possible embodiment of the present application.
Common elements or parts of elements in the embodiments described below will be denoted by the same reference numerals.
Detailed Description
In fig. 2 and 3, the reference numeral 20 generally designates a positioning and centering device for the service trolley 16 of the textile machine 12.
Fig. 2 and 3 relate to the operating unit 14 of the winding machine and the associated service trolley 16, in particular a doffer. This reference should not be understood as limiting, but purely as an example, since the principles of the present application can be applied in the same way to other types of industrial textile machines and other types of service vehicles.
By its nature and purpose, the device is suitable for textile machines 12 comprising a plurality of operating units 14.
The positioning and centering device 20 essentially comprises:
a password section 22 provided on each operation unit 14;
an optical scanner 24, provided on the service trolley 16, adapted to scan the password part 22; and
a control unit 26 operatively connected to the optical scanner 24 and the drive device 18.
The password section 22 includes: a centering reference 28 for centering the optical scanner 24 with respect to the code section 22; and an identification code 30 of the operation unit 14, wherein the password portion is provided on the operation unit 14.
In accordance with the service request signal from the operating unit 14, the control unit 26 is adapted to:
operating the drive device 18 to move at least one service trolley 16 to the operating unit 14, wherein the code section 22 of the operating unit 14 read by the optical scanner 24 contains the identification code 30 of the operating unit 14 requesting the service; and
the service vehicle 16 is centered with respect to the operation unit 14 based on the centering reference 28 of the password section 22.
According to one possible embodiment, the code portion 22 may be a QR code (quick response code).
As can be seen in the example of fig. 4, the QR code is a two-dimensional matrix comprising three large squares placed at the three vertices of the matrix, the function of the three large squares being to define the correct alignment of the code with respect to the optical reader (scanner) in terms of direction and angle during reading.
The QR code also includes a plurality of black and white pixels within the main square that contain and synthesize all information.
It is known that to access the content of a QR code, the information encoded in the matrix, such as text, numbers, internet addresses, etc., can be obtained by scanning the code with an optical reader, such as the optical reader of a smartphone.
Therefore, in the case of the QR code type code section 22, the centering reference 28 corresponds to three large squares located at three vertices of the matrix, and the identification code 30 of the operation unit 14 is defined by a plurality of black and white pixels within the main square.
According to one possible embodiment, the QR code may be a square with a side of at least 25 mm.
The application further relates to an industrial textile machine 12 comprising at least two operating units 14 and at least one service trolley 16 serving the operating units 14 by using a drive device 18.
The industrial textile machine 12 further includes a positioning and centering device 20 of the type described above.
According to one possible embodiment, the control unit 26 may be located, for example, on each service trolley 16, or may be centralized.
The drive means 18 of the service trolley 16 may be of a type known per se, for example a rail along which the service trolley is moved by driving. Since the drive means are not a particular subject of the present description, no further details will be provided.
According to one possible embodiment, the code portion 22 may also contain an identification code of the operating unit, which can be read by the operator. In this way, the identification code 30 of the operating unit 16 can also be read by the operator without the aid of a special scanning instrument for the identification code.
For example, the password section 22 may be disposed at the front of the operation unit 16 so as to be in a position convenient to be scanned by an optical scanner 24 provided on the cart.
According to one possible embodiment, the control unit 26 may be centralized and in operative communication with a plurality of operating units 14 and at least one service cart 16.
According to one possible embodiment, the industrial textile machine 12 can be, for example, a spinning machine or a winding machine.
Furthermore, the principles of the present application may also be applied to automatic or semi-automatic doffing or splicing service carts 16.
A method of positioning and centering the service trolley 16 in the textile machine 12 according to one embodiment of the present application will be described below.
The method mainly comprises the following steps:
providing a textile machine 12 of the type described above;
sending a service request signal from the operating unit 14 to at least one service vehicle 16;
an operation drive device 18 for moving at least one service vehicle 16 to the operating unit 14, wherein the code section 22 of the operating unit 14 read by the optical reader 24 contains the identification code 30 of the operating unit 14 requesting the service; and
the service cart 16 is centered with respect to the operation unit 14 based on the centering reference 28 of the password section 22.
Thus, the method enables the service trolley 16 to reach the operating unit 14 requesting a service (e.g. a doffing or a splicing operation), and once the operating unit requesting a service is identified, the service trolley 16 can be centered with respect to the operating unit 14 using the cryptographic section 22, in particular by means of a centering reference.
According to one possible embodiment, the industrial textile machine 12 can comprise at least two service trolleys 16, which can even be of different types.
Advantageously, the method may include a step in which the control unit 26 decides which service trolley 16 to send to the service requesting operating unit 14 based on operating information of the service trolley 16, such as the processing status and the distance from the service requesting operating unit 14.
Thus, the advantages that can be achieved by the present application can now be seen.
Two key aspects of the present application relate to, for example:
identifying the number of the operation unit by scanning the contents of the password portion, particularly the QR code (for example, "10" is the identification number of the 10 th unit); and
the trolley is automatically centred by processing the correct alignment information of the optical scanner with the cryptographic section and by automating the service trolley 16, in particular by means of a QR code, with respect to the operating unit 14, thus by using the alignment reference (position detection mode) that the optical scanner normally uses to scan the code.
Using QR codes to position the cart enables significant operational advantages to be achieved, such as:
the size of the code is reduced compared to conventional bar code solutions;
the sensitivity of the system to dust and abrasion is low, so that the reliability of position control and the overall performance of the machine are improved;
by scanning the QR code using equipment connected to the computer network of the textile machine, additional information about the operating conditions of the unit can be obtained in real time;
the QR code is insensitive to orientation at a given location, thereby simplifying the application process aimed at ensuring its installation at a predetermined angle.
Furthermore, from an operational point of view, there is also an improvement in the centering, which corresponds to the unit and therefore in the immediate vicinity of the yarn path, and not in the head position where further centering with respect to the unit itself is required, for example in tube magazines (tube magazines) where bar codes are generally applied.
In addition, there is also an improvement in the user-machine interface in terms of system accessibility.
A person skilled in the art may modify the above-described embodiments to replace elements thereof with other functionally equivalent elements in order to meet specific requirements while remaining within the scope of protection of the following claims.
Claims (11)
1. Positioning and centering device (20) for a service trolley (16) of a textile machine (12), said textile machine (12) comprising at least two operating units (14), characterized in that said positioning and centering device (20) comprises:
a password section (22) provided on each of the operation units (14);
an optical reader (24) arranged on the service trolley (16) and adapted to read the code portion (22); and
a control unit (26) operatively connected to the optical reader (24) and to the drive means (18),
the password section (22) includes: a centering datum (28) for centering the optical reader (24) relative to the cryptographic portion (22); and an identification code (30) of the operation unit (14), the password section being provided on the operation unit (14),
in accordance with a service request signal from an operating unit (14), the control unit (26) is adapted to:
operating the drive device (18) to move at least one of the service trolleys (16) to the operating unit (14), the cryptographic portion (22) of the operating unit (14) read by the optical reader (24) containing the identification code (30) of the operating unit (14) requesting the service; and
centering the service vehicle (16) with respect to the operation unit (14) based on the centering reference (28) of the password section (22).
2. Positioning and centering device (20) according to claim 1, characterized in that said code portion (22) is a QR code.
3. Industrial textile machine (12) comprising at least two operating units (14) and at least one service trolley (16) for said operating units (14) and provided with drive means (18), said industrial textile machine (12) further comprising positioning and centering means (20) for positioning and centering said service trolley with respect to said operating units (14), characterized in that said positioning and centering means (20) comprise:
a password section (22) provided on each of the operation units (14);
an optical reader (24) arranged on the service trolley (16) and adapted to read the code portion (22); and
a control unit (26) operatively connected to the optical reader (24) and to the drive device (18),
the password section (22) includes: a centering reference (28) for centering the optical reader (24) with respect to the cryptographic portion (22); and an identification code (30) of the operation unit (14), wherein the password portion is provided on the operation unit (14),
in accordance with a service request signal from the operating unit (14), the control unit (26) is adapted to:
operating the drive device (18) to move at least one of the service trolleys (16) to the operating unit (14), the code portion (22) of the operating unit containing the identification code (30) of the operating unit (14) requesting a service; and
-centering the service trolley (16) with respect to the operating unit (14) according to the centering reference (28) of the code section (22).
4. The industrial textile machine (12) of claim 3 wherein the coded portion (22) is a QR code.
5. The industrial textile machine (12) according to claim 4, characterized in that the QR code is square with a side length of at least 25 mm.
6. The industrial textile machine (12) according to claim 3, characterized in that the code section (22) further comprises an operating unit identification code which can be read by an operator.
7. The industrial textile machine (12) according to claim 3, characterized in that the industrial textile machine (12) is a spinning machine.
8. The industrial textile machine (12) according to claim 3, characterized in that the industrial textile machine (12) is a winder.
9. The industrial textile machine (12) according to claim 3, characterized in that the service trolley (16) is a doffer of automatic or semi-automatic type.
10. The industrial textile machine (12) according to claim 3, characterized in that the service trolley (16) is a piecing trolley of automatic or semi-automatic type.
11. The industrial textile machine (12) according to claim 3, wherein the control unit (26) is centralized and in operative communication with a plurality of the operating units (14) and at least one of the service carts (16).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT102021000022532 | 2021-08-30 | ||
| IT102021000022532A IT202100022532A1 (en) | 2021-08-30 | 2021-08-30 | POSITIONING AND CENTERING DEVICE FOR A SERVICE TROLLEY OF A TEXTILE MACHINE, TEXTILE MACHINE INCLUDING SAID DEVICE, AND PROCEDURE FOR POSITIONING AND CENTERING A SERVICE TROLLEY IN A TEXTILE MACHINE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218666486U true CN218666486U (en) | 2023-03-21 |
Family
ID=78333183
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211043192.5A Pending CN115726068A (en) | 2021-08-30 | 2022-08-29 | Positioning and centering device, industrial textile machine and related method |
| CN202222282072.2U Active CN218666486U (en) | 2021-08-30 | 2022-08-29 | Positioning and centering device and industrial textile machine |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211043192.5A Pending CN115726068A (en) | 2021-08-30 | 2022-08-29 | Positioning and centering device, industrial textile machine and related method |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4140927A1 (en) |
| CN (2) | CN115726068A (en) |
| IT (1) | IT202100022532A1 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008029575A1 (en) * | 2008-06-21 | 2009-12-24 | Oerlikon Textile Gmbh & Co. Kg | Textile machine with a movable service unit |
| CH711650A1 (en) * | 2015-10-16 | 2017-04-28 | Rieter Ag Maschf | Method for operating a ring spinning machine after a yarn breakage. |
| AT519176B1 (en) * | 2016-10-14 | 2019-02-15 | Engel Austria Gmbh | robot system |
| DE112018003548A5 (en) * | 2017-07-12 | 2020-03-26 | Oerlikon Textile Gmbh & Co. Kg | Melt spinning device |
-
2021
- 2021-08-30 IT IT102021000022532A patent/IT202100022532A1/en unknown
-
2022
- 2022-08-12 EP EP22190132.5A patent/EP4140927A1/en active Pending
- 2022-08-29 CN CN202211043192.5A patent/CN115726068A/en active Pending
- 2022-08-29 CN CN202222282072.2U patent/CN218666486U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| IT202100022532A1 (en) | 2023-03-02 |
| CN115726068A (en) | 2023-03-03 |
| EP4140927A1 (en) | 2023-03-01 |
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