CN112805232B

CN112805232B - Splicing device for splicing yarns and method for manufacturing a splicing device

Info

Publication number: CN112805232B
Application number: CN201980066205.0A
Authority: CN
Inventors: N·基乌索洛; L·洛斯; C·邦克
Original assignee: Saurer Components AG
Current assignee: Hebrain Technology Co; Rn Akoquivi Co
Priority date: 2018-10-12
Filing date: 2019-08-29
Publication date: 2023-10-31
Anticipated expiration: 2039-08-29
Also published as: WO2020074180A1; KR20210074300A; EP3863954B1; KR102665160B1; TW202024413A; EP3863954A1; EP3636571A1; CN112805232A; JP2022504628A

Abstract

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

Description

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

Technical Field

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

Background

Splicing devices are known in the art. Splicing devices are commonly used for connecting wires, yarns or similar materials. In a compressed air splicing device, compressed air is applied to the yarn, in particular to the yarn ends, to swirl said ends, whereby the filaments of the yarn are separated, hooked and intertwined with each other. The yarns can thus be easily connected.

Splicing devices consisting of many different components such as housings, conduits and splicing chambers are disclosed by US2017/0088391 A1.

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

A splicing device is also known from US3477217a, which has a housing in which a plurality of holes have been drilled. The outlets of the holes are sealed and the holes serve as air channels.

The prior art has the disadvantage that the splicing device is large and complex in construction. Furthermore, the splicing device is heavy and, because it is assembled from different individual components, a slightly less tight transition may occur. The disadvantage is also the complex 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 which is compact and simple in structure and small in pressure loss due to the loose connection is provided. Furthermore, a 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 invention for which protection is intended.

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

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

In the context of the present invention, coherent means that all openings and walls of these elements are arranged inside the valve block housing. This means that the openings of the duct element are located inside the valve housing and do not have to be plugged or closed in any way to seal the openings against the inside of the valve housing cover. The conduit member 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. The conduit piece with at least one opening with a through opening in the valve housing cover is now called an outer conduit piece. The opening of the catheter member may lead to other catheter members, actuation members or other elements such as nozzles or valves. The opening of the duct element can be open to a functional element, such as a damper or the like, which can be opened to close or reduce the opening. Two types of conduit members, such as an outer conduit member and an inner conduit member, may be connected to each other. The catheter element can have different dimensions, in particular different diameters. 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 compressed air to the yarn, for example.

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

According to the invention, the valve block housing is produced in one piece with one or more guide tubes. This does not exclude that other elements such as valves may be inserted 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 such splicing means. The material is preferably composed of synthetic fibres (plastic materials such as PE, PP, etc.). The material may also consist of natural fibres (cotton, wool, tree bast, etc.) or mixed fibres. The term "yarn" is used herein to refer to all of these types of spliceable materials.

The conduit element is preferably also designed for delivering compressed air. However, the conduit member may also be designed for delivering other types of fluids. The fluid herein also relates to gases as well as liquids.

The valve block housing and the conduit member are particularly preferably made of a plastic material such as acrylic or a polymer (PLA, PS, PP, nylon, etc.). However, synthetic resins such as epoxy, ceramic/glass or metals such as copper, iron, steel, etc. or combinations of different materials may also be used.

The valve block housing is preferably closed by a housing. The valve block housing may include a plurality of openings for securing the housing. The housing is removably attachable to the valve block housing. The housing stabilizes the interior and provides protection thereto. The housing may be ergonomically adapted for use with a hand. This facilitates user operation. The housing may be manufactured by injection molding. The valve block housing preferably has at least one connection interface for fastening the twisting head. The valve block housing is particularly preferably fixedly or detachably connected to the splice. The twist splice as part of the valve block housing provides a simple and compact construction for the splicing device. The splicing device comprises at least one nozzle for applying a fluid flow to the yarn. One or more nozzles are disposed at or in the splicing chamber. The fluid flow can be precisely applied by means of a nozzle. The flexible arrangement of one or more nozzles enables precise alignment and thus provides a well-stabilized splice.

The plurality of conduit members may include at least one outer conduit member having at least one opening in the valve housing cover and/or one inner conduit member not having an opening in the valve housing cover.

It is possible to connect the fluid supply port and the actuator port by means of an outer catheter member in a simple and efficient manner. In this way the duct piece is easily vented or any waste material present, such as fibres or dust, is removed. Because of the small pressure loss, 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 member is connected to other control members, adjustment members or actuation members by means of a catheter member. The control regulates whether and/or where the fluid is flowable. 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 for 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. Thereby, a simple and compact construction of the splicing device is possible. The support or supports can be connected or connectable to the housing or valve housing of the splicing device, in particular can be manufactured such that they are in one piece with the housing or valve housing. Thus, the assembly is stable and compact.

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

Since the duct piece is manufactured such that it has at least one curved section, a compact construction of the duct is possible, as well as a compact construction that can make good use of the interior of the valve block housing and of the duct network. The outer and/or inner guide tube piece is/are integrally produced with the bending section or sections.

At least one of the guide tubes may be arranged at least partially parallel to the other guide tube. This results in a simple and compact construction of the catheter 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 with compressed air. With compressed air cartridges, the splicing device can be easily transported and utilized without dryness 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 duct element. The compressed air supply is particularly preferably connected to the control element and the actuating element by means of a conduit element, in particular so that the actuating element can be operated. The splicing device may include a dispenser for the adhesive to add the 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 other splicing elements, such as heating elements. The heating element may be heated by electric current or by any other suitable means. The conduit element may be designed for delivering a fluid for cooling the splicing device.

The actuator may be arranged within or at the splicing chamber.

The splice chamber may be disposed on or at the splice. The twisting head may comprise a cutting member, in particular a blade, for cutting the yarn. Thanks to such a cutting member, the yarn can be easily processed. The twisting head may comprise a clamping element, in particular an openable clamping element. Thanks to the clamping elements, 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 member are integrally connected, the pressure loss is small.

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

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

Thus, 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, pourable, pressable or liftable.

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

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

Different valves may be operated sequentially during splicing whereby one or more actuators, such as a damper and blade, are operated first and other actuators, such as an air supply opening in the splicing chamber, are operated next. The duration of this controlled sequence can be varied by the regulating member by increasing or decreasing the fluid flow. Once the splice chamber is sealed, fluid flow may be automatically turned on by a timing switch and/or automatically turned off after a period of time has elapsed. It is ensured that, for example, the compressed air tank is emptied at a relatively low speed. Thanks to such an adjusting member, a splicing process of different durations can be performed on yarns comprising different fibers. For example, fragile fibers require a milder splice relative to other more stable fibers. The adjustment member may be continuously adjustable and/or stepwise adjustable. Continuous adjustment enables precise adjustment of flow. In the case of stepwise adjustment, the desired setting conditions can be easily set for the known yarn. The adjustment member may comprise a rotary element. Thereby, the adjustment can be performed in a simple and fast manner. The adjusting member can be detachably or fixedly coupled or coupleable to the splicing device.

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

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

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

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

The splicing device, in particular the valve block of the splicing device, can be made at least in part by an additive manufacturing process. The additive manufacturing method may be a melt layer method, in particular a Fused Deposition Modeling (FDM) method, a Selective Laser Sintering (SLS) method or a multi-jet fusion (MJP) method. This allows simple and efficient manufacturing of complex structures.

The object is also achieved by a method for manufacturing 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 in an additive manufacturing process.

This makes it possible to produce a compact splicing device quickly and easily. The conduit member may be arranged such that it is coherent inside the valve block housing. The catheter element can be manufactured such that it is at least partially bent or has a bent section. In production, the at least one outer tube piece can be produced integrally with the at least one inner tube piece and/or with a nozzle and/or with a splicing chamber.

In this way, the production takes place in a simple manner and the splicing device is particularly compact, since there is no seam between the individual parts of the device that have to be sealed. The control and/or adjustment member and/or other element, such as a screw, may be inserted into the splicing device. These inserted elements may be fixedly or detachably connected to the valve block housing. The valve block housing may be inserted into the outer housing. The housing may be injection molded. The twist union 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 illustrated by way of example by the following figures, in which:

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

FIG. 2 shows an isometric view of a splicing device with half of the shell hidden away;

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

FIG. 4 shows an isometric view of a valve block with a closure cap removed;

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

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

Description of the embodiments

Fig. 1 shows an overall view of a splicing device 1. The splicing device 1 includes a housing a, a splicing head S, and a compressed air supply port 40 for connecting the splicing device 1 to a compressed air conduit. The twisting head S comprises a twisting 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 switching member 14 and the rotary switch 60 in the form of a switch are formed at one side of the housing a.

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

The casing a is constituted by 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 opposite end portions C and D. The twist joint S is arranged at the end C, and the compressed air supply port 40 is arranged at the end D. The end C does not have any housing wall and is therefore open towards the twisting joint S. At the opposite end D, an opening O (fig. 2) is provided in the valve block housing enclosing the compressed air supply port 40. Other openings F for elements such as screws or for operating the 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. The half Y of the housing a is omitted here. The valve block V is arranged within the housing a. The valve block V comprises its own valve block housing 2, into which three control elements 5 and one control element 15 are inserted. The control 5 comprises an opening valve 19, a closing valve 20 and an air blow valve 24. The regulating 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 phases in which the adjustment member 15 can be switched. The switch 14 is connected to an opening 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 twisting head 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 placed into the housing a at the end C of the housing.

Fig. 3 shows a perspective view of the valve block 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 adjustment member 15 are arranged such that a user can operate the rotary switches of the switch 14 and the adjustment member 15 from the same side of the splicing device 1 (see fig. 1 and 2). The splicing process may be initiated by depressing switch 14. The valve 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. The 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) which is not inclined. The adjusting 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. The inner side 7 of the valve housing 3 can be seen here. The inner side 7 of the valve housing cover 3 encloses the interior of the valve block V. The opening valve 19, the closing valve 20, the air blow valve 24, the switching member 25 and the timing valve 15 are incorporated into 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 cover 50.

The control element 5, the adjusting element 15, the actuating element 13 (see fig. 5) and the compressed air supply element 12 (see fig. 1 and 2) are connected to one another by means of a conduit system and open at the outside 6 of the valve block housing 2 (see fig. 6: pneumatic diagram). The catheter system is made up of various catheter elements 4. These duct elements 4 comprise an outer duct element and an inner duct element (8 and 9). The catheter elements 4 have different dimensions, different lengths and in some cases different diameters. These catheter elements 4 have in some cases curved sections 11. The valve housing cover 3 and the duct member 4 and the end portions are integrally manufactured by an additive method (in particular, 3D printing). The valve group V also comprises two air chambers 23 and 25. The blow chamber 23 is connected to the blow valve 24 by means of the catheter member 4, and the blow chamber 24 is connected to the timing valve 26 by means of the catheter member 4. The actuation member 13 can be operated in a delayed manner by means of the blowing chambers 23, 25 and the duration of the splicing process is determined (see fig. 6).

Fig. 5 shows a twisting head of the twisting device of fig. 1. The splice comprises three actuating members 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 were used for the pneumatic process:

three controls 5: opening valve 19, closing valve 20 and blow valve 24;

-a timing valve 26;

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

opening the switch 14 of the valve 19;

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

a conduit member 4 (see fig. 4).

The splicing process begins by depressing the switch 14. The opening valve 19 is opened and, therefore, the compressed air conduit leading to the closing valve 20 is opened. The shut-off valve 20 is switched. This opens the compressed air duct leading to the two actuators 13 (damper 21 and blade 22; both visible in fig. 5) and these two actuators are operated. The other duct piece 4 (see fig. 4) opens into the blowing chamber 23, so that the blowing chamber 23 is filled in addition to the damper 21 and the blade 22 being operated. When the blowing chamber 23 is filled, the blowing 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 yarn is spliced. The compressed air also fills the reset air chamber 25. Once reset air chamber 25 is filled, timing valve 26 is switched and shut-off valve 20 is switched back to the initial position. Thus, the process ends.

By means of the blowing chamber 23 and the reset air chamber 25, the blowing 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 regulator 15 (see fig. 4). The adjusting element 15 can set the duration of the splicing process in relation to the filling speed of the reset air chamber 25.

Claims

1. Splicing device (1) for splicing yarns, comprising a valve group (V) for regulating the flow of a fluid and one or more conduit members (4) for transporting the fluid, wherein the valve group (V) comprises a valve group housing (2) with a valve group housing (3), wherein the valve group housing (3) encloses the interior of the valve group housing (2), characterized in that the one or more conduit members (4) are arranged consecutively in the interior of the valve group housing (2), wherein a fluid supply port is connected with an actuator port for an actuator (13) by means of the conduit member(s) (4), wherein the valve group housing (2) is made in one piece with the conduit member(s) (4), wherein the conduit member (4) comprises at least one inner conduit member (9) without a vent opening on the valve group housing (3), the actuator (13) being arranged in a splicing chamber (27) or at a splicing chamber (27), the splicing chamber (27) being integrally connected to the at least one conduit member (4) such that the fluid can be transported through the conduit member(s) (27).

2. Splicing device (1) according to claim 1, characterized in that the plurality of conduit pieces (4) comprises at least one outer conduit piece (8) with at least one through opening on the valve housing cover (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) for controlling the fluid flow.

4. Splicing device (1) according to claim 1 or 2, characterized in that the splicing device (1) comprises at least one support for supporting at least one conduit piece (4) and/or at least one control piece (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 claim 1 or 2, 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 claim 1 or 2, characterized in that the fluid supply port is configured as a compressed air supply port (40), the compressed air supply port (40) comprising a compressed air supply (12).

8. Splicing device (1) according to claim 1 or 2, characterized in that the splicing device (1) comprises at least one switching element (14) for starting the splicing process.

9. Splicing device (1) according to claim 1 or 2, characterized in that the splicing device (1) comprises at least one regulating element (15) for regulating the fluid flow.

10. Splicing device (1) according to claim 1 or 2, characterized in that the splicing device (1) comprises a display (16) for displaying status information.

11. Splicing device (1) according to claim 1 or 2, characterized in that at least one conduit piece (4) is made in one piece with the compressed air supply (12) and/or the splicing chamber (27) and/or the nozzle (17).

12. Splicing device (1) according to claim 1 or 2, characterized in that the valve group (V) of the splicing device (1) is at least partially manufactured by an additive manufacturing method.

13. Splicing device (1) according to claim 7, wherein the compressed air supply (12) is a compressed air cartridge and/or a connection port to a compressed air line.

14. Splicing device (1) according to claim 8, wherein the switching element (14) is a switch for operating a valve at the beginning of the splicing process.

15. A method for manufacturing a splicing device (1) according to one of claims 1 to 14, characterized in that the valve block housing (2) is manufactured in one piece with at least one duct element (4).

16. The manufacturing method according to claim 15, characterized in that the valve block housing (2) and the at least one conduit piece (4) are manufactured in one piece in an additive manufacturing process.