CN112805232A

CN112805232A - Splicing device for splicing yarns and method for producing a splicing device

Info

Publication number: CN112805232A
Application number: CN201980066205.0A
Authority: CN
Inventors: N·基乌索洛; L·洛斯; C·邦克
Original assignee: Heberlein AG
Current assignee: Hebrain Technology Co; Rn Akoquivi Co
Priority date: 2018-10-12
Filing date: 2019-08-29
Publication date: 2021-05-14
Anticipated expiration: 2039-08-29
Also published as: EP3863954B1; KR20210074300A; WO2020074180A1; CN112805232B; JP2022504628A; KR102665160B1; TW202024413A; EP3863954A1; EP3636571A1

Abstract

The invention relates to a splicing device (1) for splicing yarns. The splicing device (1) comprises a valve block housing (2) having a valve block housing (3) and one or more conduit pieces (4), in particular tubular pieces, for conveying a fluid, in particular compressed air. The valve block housing (3) encloses the interior of the valve block housing (2). One or more conduit pieces (4) are consecutively arranged in the interior of the valve block housing (2). Through the conduit member(s) (4), the fluid supply port (40) is connected with an actuator port for the actuator (13). The valve block housing (12) is made in one piece with the line piece or pieces (4).

Description

Splicing device for splicing yarns and method for producing a splicing device

Technical Field

The present invention relates to a splicing device for splicing yarns and a method of manufacturing a splicing device.

Background

Splicing devices are known in the prior art. Splicing devices are commonly used for connecting threads, yarns or similar materials. In a compressed air twisting device, compressed air is applied to a yarn, particularly an end of the yarn, to swirl the end, whereby a plurality of filaments of the yarn are separated, caught on each other, and intertwined with each other. The yarns can thus be easily connected.

A splicing device consisting of many different components, such as a housing, a conduit and a splicing chamber, is disclosed by US2017/0088391a 1.

US4751813 discloses a splicing device comprising a housing in which two holes have been drilled. Catheters have been inserted into these holes.

A splicing device is also known from US3477217A, which has a housing which has been drilled with a plurality of holes therein. The outlets of the holes are sealed and the holes serve as air passages.

The disadvantage of the prior art is that the splicing device is large and complicated in construction. Furthermore, the splicing device is cumbersome and, because it is assembled from different individual parts, a slightly untight transition may occur. The disadvantage is also the complexity of production.

Disclosure of Invention

It is an object of the present invention to obviate these and other disadvantages of the prior art. In particular, a splicing device is provided which is compact and simple in construction and which has a low pressure loss due to loose connections. Furthermore, simple and fast manufacturing is provided.

According to the invention, these objects are achieved by a splicing device and a method for manufacturing a splicing device according to the independent claims.

According to the invention, a splicing device for splicing yarns comprises a valve block for regulating the flow of a fluid and one or more conduit elements, in particular tubular elements, for conveying the fluid, in particular compressed air. The duct member may be any type of tube or pipe, i.e. a hollow body. The walls of these hollow bodies may at least partially have the shape of a hollow cylinder.

The valve block includes a block housing having a block housing cover. The valve block housing encloses an interior of the valve block housing. A plurality of conduit members are consecutively disposed within the valve block housing.

Coherent means in the context of the present invention that all openings and walls of these elements are arranged inside the valve block housing. This means that these openings of the duct pieces are located inside the valve block housing and do not have to be closed off or closed in any way to seal these openings against the inside of the valve block housing. The conduit piece has a through opening in the housing only when the function of the splicing device is required. The conduit without a port in the housing is referred to herein as an inner conduit member. A line pipe having at least one opening with a passage opening in the valve housing is now referred to as an outer line pipe. The opening of the conduit member may lead to other conduit members, an actuator or other elements such as a nozzle or valve. The opening of the conduit piece can open into a function, such as a damper or the like, which can openly close or reduce the opening. Two kinds of conduit members such as an outer conduit member and an inner conduit member may be connected to each other. The catheter members may have different dimensions, in particular different diameters. But the conduit member is designed such that the conduit member ensures fluid flow within the valve block housing.

The fluid supply port is connected by means of one or more conduit members to an actuator port of an actuator for applying e.g. compressed air to the yarn.

The actuator may comprise a blade, a damper, a clamp or an air supply opening.

According to the invention, the valve block housing is manufactured in one piece with one or more conduit pieces. This does not preclude the insertion of other elements such as valves into the valve block housing.

Such a splicing device is convenient, lightweight and compact. All types of threads, yarns, strands or similar materials can be connected by means of such a splicing device. The material is preferably composed of rayon (plastic material such as PE, PP, etc.). But the material can also consist of natural fibres (cotton, wool, tree bast, etc.) or mixed fibres. The term "yarn" is used herein for all these types of spliceable materials.

The line piece is preferably also designed for conveying compressed air. However, the conduit member may also be designed for conveying other types of fluids. Fluids herein also relate to gases as well as liquids.

The valve block housing and the duct member are particularly preferably manufactured from a plastic material such as an acrylate or a polymer (PLA, PS, PP, nylon, etc.). But synthetic resins such as epoxy, ceramics/glass or metals such as copper, iron, steel etc. or combinations of different materials may also be used.

The valve block housing is preferably enclosed by a housing. The valve block housing may include a plurality of openings for securing the housing. The housing is removably connectable to the valve block housing. The outer shell stabilizes and provides protection for the interior. The housing may be ergonomically adapted to the hand. This facilitates the user operation. The housing may be manufactured by injection molding. The valve block housing preferably has at least one connection interface for fastening the twist joint. The valve block housing is particularly preferably fixedly or detachably connected to the twist joint. The twist-on head being part of the valve block housing gives the twist-on device a simple and compact construction. The splicing device comprises at least one nozzle for applying a fluid flow to the yarn. One or more nozzles are arranged at or in the splicing chamber. The fluid flow can be precisely applied by means of a nozzle. The flexible arrangement of the one or more nozzles enables precise alignment and thus provides a good and stable splice.

The plurality of conduit members may include at least one outer conduit member having at least one port on the valve block housing and/or one inner conduit member having no port on the valve block housing.

It is possible to connect the fluid supply port and the actuator port by means of an outer conduit member in a simple and efficient manner. In this way the duct piece is made easier to evacuate or to remove any waste material present, such as fibres or dust. Because the pressure loss is small, it is effective to guide the fluid through the inner conduit member.

The splicing device may comprise at least one control element, in particular a valve, to control the fluid flow. At least one control element is connected to other control elements, adjusting elements or actuating elements by means of a conduit element. The control adjusts whether and/or where the fluid may flow. The splicing device may in particular comprise three control elements. Thereby, the fluid flow can be more easily controlled. The control element can in particular be inserted or insertable into the valve block housing. This allows simple and rapid maintenance or repair.

The splicing device, in particular the valve block housing, can comprise at least one support for supporting at least one conduit piece and/or one control element. A simple and compact construction of the splicing device is thereby possible. The support element or elements can be connected or connectable to the housing or valve block housing of the splicing device, in particular can be manufactured such that it is in one piece with the housing or valve block housing. Thereby, the assembly is stable and compact.

The one or more outer catheter components and/or the inner catheter components may include one or more curved sections.

Since the conduit piece is manufactured such that it has at least one curved section, a compact construction of the conduit and a compact construction which makes good use of the valve block housing interior and the conduit network is possible. The outer and/or inner tubing part is/are produced in one piece with the bending section or bending sections.

At least one conduit piece may be arranged at least partially parallel to another conduit piece. This results in a simple and compact construction of the conduit network.

The fluid supply port may comprise a compressed air supply, in particular a port leading to a compressed air conduit and/or a compressed air cartridge. The yarn can be easily spliced using compressed air. Using a compressed air cylinder, the splicing device can be transported easily and utilized without interference with any provided infrastructure. The compressed air supply may be connected or connectable to the valve block housing. The compressed air supply is preferably connected to the conduit member. The compressed air supply element is particularly preferably connected to the control element and the actuating element by means of a conduit element, in particular such that the actuating element can be operated. The splicing device may comprise a dispenser for adhesive in order to add adhesive to the compressed air. The binder may include water, chemicals, particles, or other suitable agents. In addition to or instead of the compressed air supply, the splicing device can have further splicing elements, such as heating elements. The heating element may be heated by an electric current or by any other suitable means. The conduit piece may be designed for conveying a fluid for cooling the splicing device.

The actuating element may be arranged within or at the splicing chamber.

The splicing chamber may be arranged above or at the splicing head. The splices may comprise cutting members, in particular blades, for cutting the yarn. Thanks to such a cutting member, the yarn can be easily processed. The splice may comprise a clamping element, in particular an openable clamping element. Due to the clamping element, it is ensured that the yarn remains in the splicing chamber in a simple manner.

The splicing chamber may be integrally connected to the at least one conduit member.

When the splicing chamber and the duct piece are integrally connected, the pressure loss is small.

The splicing device can comprise at least one switching element, in particular a switch for actuating a valve for starting the splicing process.

The fluid flow can be switched by a switch. The switching element is preferably connected or connectable to the control element and is designed for operating the control element, in particular mechanically. The switch is preferably a mechanical switch, particularly preferably a mechanical switch.

Thereby, the user can easily operate the device. The splicing device has in particular only purely mechanical and/or pneumatic and/or hydraulic components, i.e. no electrical or electronic components are required. This makes a simple construction of the splicing device possible. The switch may be rotatable, tiltable, depressible or liftable.

The splicing device can comprise at least one adjusting element for adjusting the fluid flow, in particular for adjusting the fluid flow by a user.

The adjusting element preferably comprises a timed switching element, in particular a valve. The timed switch is preferably a valve having an air chamber for opening and/or closing fluid flow. The fluid flow from the compressed air supply leads in particular to an actuating element which opens particularly preferably to an air supply opening of the splicing chamber.

The different valves may be operated in sequence during the splicing process, whereby one or more actuators, such as a damper and a blade, are operated first, while the other actuators, such as the air supply opening in the splicing chamber, are operated next. The duration of this controlled sequence can be varied by the adjustment member by increasing or decreasing the fluid flow. Once the splice chamber is sealed, fluid flow may be automatically turned on by a timed switch and/or turned off when a period of time has elapsed. It can thus be ensured that, for example, the compressed air cylinder is emptied at a relatively low speed. Due to such an adjusting member, it is possible to carry out a splicing process of different durations on yarns comprising different fibers. For example, weaker fibers require a more gentle splice than other more stable fibers. The adjustment member may be continuously adjustable and/or stepwise adjustable. Continuous regulation enables fine regulation of the flow. In the case of stepwise adjustment, the desired setting conditions can easily be set for known yarns. The adjustment member may comprise a rotating element. The adjustment can thereby be carried out in a simple and rapid manner. The adjusting means can be detachably or fixedly coupled or can be coupled to the splicing device.

The splicing device can comprise a display for displaying status information, in particular the flow strength through the adjusting element.

Such a display may display the level of the adjustment member. This simplifies the operation of the splicing device.

The at least one conduit piece can be manufactured in one piece with the compressed air supply and/or the splicing chamber and/or the nozzle.

A compact and compact construction of the splicing device can thereby be achieved.

The splicing device, in particular the valve block of the splicing device, may be at least partially manufactured by an additive manufacturing method. The additive manufacturing process may be a melt layer process, in particular a Fused Deposition Modeling (FDM) process, a Selective Laser Sintering (SLS) process or a multiple jet Melting (MJP) process. This allows complex structures to be manufactured simply and efficiently.

The object is also achieved by a method for producing a splicing device. In a method for producing a splicing device, a valve block housing is produced in one piece with at least one conduit piece, in particular by an additive manufacturing method.

A compact splicing device can thus be produced quickly and easily. The conduit member may be arranged such that it is coherent inside the valve block housing. The catheter member may be manufactured such that at least part of it is bent or has a bent section. In production, the at least one outer duct member may be manufactured integrally with the at least one inner duct member and/or a nozzle and/or a splicing chamber.

The manufacture thus takes place in a simple manner and the splicing device is particularly compact, since there are no seams between the individual parts which the device has to seal. The control member and/or the adjusting member and/or other elements, such as screws, may be inserted into the splicing device. These inserted elements may be fixedly or removably attached to the valve block housing. The valve block housing may be inserted into the housing. The housing may be injection molded. The twist joint may be fixedly or removably attached to the valve block housing. The splicing chamber may be fixedly or detachably connected to the catheter member.

Drawings

Embodiments of a preferred splicing device will be described in an exemplary manner by means of the following figures, in which:

fig. 1 shows a perspective view of a splicing device;

fig. 2 shows an isometric view of the splicing device with half of the housing hidden;

fig. 3 shows a perspective view of a valve block of the splicing device;

FIG. 4 shows an isometric view of the valve block with the housing removed;

FIG. 5 illustrates an isometric view of a twist joint; and

fig. 6 shows the pneumatic diagram of the valve block.

Detailed Description

Fig. 1 shows an overall view of a splicing device 1. The splicing device 1 comprises a housing a, a splice S and a compressed air supply port 40 for connecting the splicing device 1 to a compressed air conduit. The splicing head S comprises a splicing chamber 27 and three actuating members 5 (see fig. 5): a damper 21, a blade 22 and an air supply opening 17 (see fig. 5). It can be seen that the switch 14 in the form of a switch and the rotary switch 60 are formed at one side of the housing a.

During the splicing process, the yarn to be joined is first placed into the splicing chamber 27 (see fig. 5). The splicing process is then started by pressing the switch 14. Compressed air is fed into the splicing apparatus 1 through the compressed air supply port 40. The compressed air operates the actuator 5, the shutter 21 is closed and the blade 22 is activated, thus cutting the yarn (see figures 5 and 6). Subsequently, the compressed air is fed into the splicing chamber 27 (see fig. 5) with a delay and the yarn is spliced. The process ends automatically (see fig. 6 for further details).

The housing a is made up of two halves X and Y connected to each other by screws 41. The housing a is substantially rectangular parallelepiped in shape, and thus has two mutually opposed ends C and D. The twist joint S is disposed at the end C, and the compressed air supply port 40 is disposed at the end D. The end C does not have any housing wall and is therefore open towards the twist joint S. At the opposite end D, an opening O (fig. 2) is provided in the valve block housing, which encloses the port 40. Further openings F for elements, such as screws, or for operating elements of the splicing device 1 (see switch 14 or rotary switch 60) are arranged in the housing a.

Fig. 2 shows the splicing device 1 of fig. 1. Here the half Y of the housing a is hidden. The valve block V is arranged inside the housing a. The valve block V comprises its own valve block housing 2, in which three control members 5 and one adjusting member 15 are fitted. The control means 5 comprise an opening valve 19, a closing valve 20 and a blow valve 24. The adjustment member 15 includes a display member 16 (see fig. 3), a rotary switch 60, and a timing valve 26 (see fig. 3 and 6). The display 16 shows six stages in which the adjustment member 15 can be switched. Switch 14 is connected to open valve 19. The switch 14 and the rotary switch 60 of the valve group V protrude such that they can be operated through the opening F in the housing a. The twist joint S is screw-mounted to the valve block V.

The housing a has a plurality of support portions T. The support T is arranged so that the valve group V can be inserted into the housing a at the end C of the housing.

Fig. 3 shows a perspective view of the valve group V of fig. 2. The valve block V comprises a valve block housing 2 with a valve block housing 3, where an outer side 6 of the valve block housing 3 is visible.

The rotary switches of the switch 14 and the adjusting piece 15 are arranged such that a user can operate the rotary switches of the switch 14 and the adjusting piece 15 from the same side of the splicing device 1 (see fig. 1 and 2). The splicing process can be started by pressing the switch 14. The valve block housing 2 of the valve block V is substantially rectangular parallelepiped in shape, having two opposite ends E and G. The end E is inclined. A twist joint S is arranged at the end E (see fig. 1 and 2). The compressed air supply port 40 is disposed at the other end portion G (see fig. 1) that is not inclined. The adjustment member 15 is arranged at the end G.

Fig. 4 shows an isometric view of the valve block V of fig. 3 with a portion of the valve block housing 3 hidden. Here, the inner side 7 of the valve housing 3 can be seen. The inner side 7 of the valve block housing 3 encloses the interior of the valve block V. The opening valve 19, the closing valve 20, the blow valve 24, the switching member 25, and the timing valve 15 are incorporated in the interior. The opening valve 19, the closing valve 20, the blow valve 24 are substantially cylindrical, wherein the axes of these cylinders are arranged in parallel. All of these valves are provided with a cap 50.

The control member 5, the adjusting member 15, the actuating member 13 (see fig. 5) and the compressed air supply member 12 (see fig. 1 and 2) are connected to each other by a conduit system and open at the outside 6 of the valve block housing 2 (see fig. 6: pneumatic diagram). The catheter system is composed of various catheter members 4. These conduit pieces 4 include outer conduit pieces and inner conduit pieces (8 and 9). The catheter members 4 are of different sizes, different lengths and in some cases different diameters. These conduit pieces 4 have in some cases curved sections 11. The valve block housing 3 and the duct piece 4 and the end portions are manufactured in one piece by an additive method, in particular 3D printing. The valve group V also comprises two

air chambers

23 and 25. The insufflation chamber 23 is connected to an insufflation valve 24 by means of the conduit member 4, and the insufflation chamber 24 is connected to a timing valve 26 by means of the conduit member 4. The actuating element 13 can be operated in a time-delayed manner by means of the

blow chambers

23, 25 and the duration of the splicing process is determined (see fig. 6).

Fig. 5 shows a twist joint of the twisting device of fig. 1. The splice comprises three actuators 13: a splicing chamber 27 with an air supply mechanism 51, a damper 21 and a blade 22. The air supply mechanism 51 includes an air supply opening 17.

Fig. 6 shows a pneumatic flow diagram of the valve block of fig. 3. The following components are used in the pneumatic process:

three control members 5: opening valve 19, closing valve 20 and purge valve 24;

-a timing valve 26;

two air chambers: a blow chamber 23 and a reset air chamber 25;

a switch 14 opening valve 19;

three actuators 13: damper 21, blade 22 and air supply opening/nozzle 17;

conduit pieces 4 (see fig. 4).

The splicing process is started by pressing the switch 14. The opening valve 19 is opened and, consequently, the compressed air conduit leading to the closing valve 20 is opened. The shut-off valve 20 is switched. This opens the compressed air conduit to the two actuators 13 (damper 21 and blade 22; both visible in fig. 5) and the two actuators are operated. The other duct piece 4 (see fig. 4) opens into the blow chamber 23, so that in addition to the damper 21 and the blade 22 being operated, the blow chamber 23 is also filled. When the blow chamber 23 is filled, the blow valve 24 is operated, and compressed air is blown into the splicing chamber 27 through the air supply opening 17 by means of the air supply chamber 51 (see fig. 5). The yarns are spliced. The compressed air also fills the reset air chamber 25. Once the reset air chamber 25 is filled, the timing valve 26 is switched and the shut-off valve 20 is switched back to the initial position. Thus, the process ends.

By means of the blow air chamber 23 and the reset air chamber 25, the blow air process is delayed with respect to the closing of the damper 21 and the operation of the blade 22. The timing valve 26 is part of the adjusting member 15 (see fig. 4). The adjusting means 15 can set the splicing process duration in relation to the filling speed of the reset air chamber 25.

Claims

1. A splicing device (1) for splicing yarns, comprising a valve block (V) for regulating the flow of a fluid and one or more conduit pieces (4), in particular tubular pieces, for conveying the fluid, in particular compressed air, wherein the valve block (V) comprises a valve block housing (2) with a valve block housing cover (3), wherein the valve block housing cover (3) encloses the interior of the valve block housing (2), characterized in that the one or more conduit pieces (4) are consecutively arranged in the interior of the valve block housing (2), wherein a fluid supply port (40) is connected with an actuator port for an actuator (13) by means of the conduit piece(s) (4), wherein the valve block housing (2) is made in one piece with the conduit piece(s) (4).

2. Splicing device (1) according to claim 1, wherein the plurality of conduit elements (4) comprises at least one outer conduit element (8) with at least one through opening on the valve block housing (3) and/or one inner conduit element (9) without through opening on the valve block housing (3).

3. Splicing device (1) according to one of the preceding claims, characterized in that the splicing device (1) comprises at least one control element (5), in particular a valve, for controlling the flow of fluid.

4. Splicing device (1) according to one of the preceding claims, wherein said splicing device (1), and in particular said valve block housing (2), comprises at least one support for supporting at least one conduit member (4) and/or at least one control member (5).

5. Splicing device (1) according to claim 2, characterized in that one or more outer conduit pieces (8) and/or inner conduit pieces (9) comprise one or more curved sections (11).

6. Splicing device (1) according to one of the preceding claims, characterized in that at least one conduit piece (4) is arranged at least partially parallel with respect to the other conduit piece (4).

7. Splicing device (1) according to one of the preceding claims, characterized in that the compressed air supply port (40) comprises a compressed air supply (12), in particular a compressed air cartridge and/or a connection port to a compressed air line.

8. Splicing device (1) according to one of the preceding claims, characterized in that the actuating element (13) is arranged in or at the splicing chamber (27).

9. Splicing device (1) according to claim 8, characterized in that the splicing chamber (27) is integrally connected to at least one conduit piece (4) such that fluid can be transported into the splicing chamber (27) through the conduit piece (4).

10. Splicing device (1) according to one of the preceding claims, characterized in that the splicing device (1) comprises at least one switch (14) for starting the splicing process, in particular a switch for operating a valve.

11. Splicing device (1) according to one of the preceding claims, characterized in that the splicing device (1) comprises at least one adjusting element (15) for adjusting the fluid flow, in particular for adjusting the fluid flow by a user.

12. Splicing device (1) according to one of the preceding claims, characterized in that the splicing device (1) comprises a display element (16) for displaying status information, in particular the strength of the flow through the regulating element (15).

13. Splicing device (1) according to one of the preceding claims, characterized in that at least one conduit piece (14) is made in one piece with the compressed air supply (12) and/or the splicing chamber (27) and/or the nozzle (17).

14. Splicing device (1) according to one of the preceding claims, characterized in that the valve group (V) of the splicing device (1) is at least partially, particularly preferably completely, manufactured by an additive manufacturing method.

15. A manufacturing method for manufacturing a splicing device (1), in particular a splicing device (1) according to one of the claims 1 to 14, characterized in that the valve block housing (2) and the at least one conduit piece (4) are manufactured in one piece, in particular in an additive manufacturing method.