CN111850805B

CN111850805B - Warp knitting machine

Info

Publication number: CN111850805B
Application number: CN201911028882.1A
Authority: CN
Inventors: K·布兰德; C·施奈德
Original assignee: Carlmeyerstol R & D Co ltd
Current assignee: Carlmeyerstol R & D Co ltd
Priority date: 2019-04-30
Filing date: 2019-10-28
Publication date: 2021-08-31
Anticipated expiration: 2039-10-28
Also published as: EP3511459A3; EP3511459A2; TWI772749B; EP3511459B1; KR20200126894A; TW202041739A; KR102373211B1; CN111850805A

Abstract

The invention relates to a warp knitting machine having a guide bar (2) which can be moved back and forth along a guide bar longitudinal axis (5), a push rod (4) acting on the guide bar (2), a pusher element (3) for applying a force to the push rod (4), and a spring pulling system (1) for pulling the guide bar (2) toward the push rod (4), wherein the spring pulling system (1) has a force transmission assembly (6) and at least one spring. According to the invention, the pusher shoe (3) has a guide channel (13), wherein the at least one spring is arranged in the guide channel (13), and wherein a part of the force transmission assembly (6) of the spring pull system (1) is mounted in the guide channel (13).

Description

Warp knitting machine

Technical Field

The present invention relates to a warp knitting machine, comprising: a guide bar movable back and forth along a longitudinal axis of the guide bar; a push bar acting on the guide bar; the pushing piece is used for applying force to the push rod; and a spring pull system to pull the bar toward the push rod, wherein the spring pull system has a force transfer assembly and at least one spring.

Background

Such warp knitting machines are known from the prior art. Thus, CN205676612U shows an assembly that allows the guide bar to be driven by a push rod. Jacquard devices are used for shogging. It drives the pushing element, which is connected with the push rod. The assembly also has a cylindrical pull member. Springs are provided in the pull member, which springs are connected to a pin. The cotter thus applies a restoring force to the rope. The rope transmits a restoring force to the guide bar, thereby pressing the guide bar to the push rod. The externally arranged pull element is subjected to strong mechanical loads and can be slightly damaged during the assembly process. It is therefore a weak point of such an assembly.

Disclosure of Invention

The invention is therefore based on the object of providing a warp knitting machine with a spring pull system which can withstand high mechanical loads.

This object is achieved in that a warp knitting machine is provided, wherein the pusher shoe has a guide channel, wherein the at least one spring is arranged in the guide channel, and wherein a part of the force transmission assembly of the spring pull system is mounted in the guide channel.

Because the spring is arranged according to the invention, a significantly improved stability in the pusher shoe occurs. The pusher shoe can withstand forces and dissipate reliably. The restoring force exerted by the spring acts on the force transmission assembly according to the invention, so that the guide bar is pressed to the push rod. The pusher shoe is preferably designed in one piece.

According to the invention, the guide bar may be a thread guide bar. A plurality of guide needles for guiding warp yarns are fixed to the guide bar. The thread-guide bar is moved along the longitudinal axis of the bar to produce a knit having the desired pattern design. According to the invention, the warp knitting machine can have a jacquard device for the displacement of the guide bar. According to one embodiment of the invention, the patterning device may comprise a patterning disc which, because of its shape, moves the guide bar while rotating. Alternatively, it is possible that the jacquard device has a servomotor or a linear motor. Such a motor allows the shogging position of the guide bar to be freely adjusted. This opens up a high variety of jacquard patterns for the user.

The force transmission assembly preferably has a bolt mounted in the pusher shoe. The bolt can be mounted in the pusher shoe in a sliding manner according to the invention.

Alternatively, however, ball bearings or ball bearings can also be provided in the pusher shoe. Advantageously, the force transfer assembly has a pull member connectable to the guide bar. According to the invention, the pulling member can be connected to the pin. The invention can provide that the pulling element is a metal cable.

The guide channel is preferably oriented in the pusher shoe in such a way that the longitudinal guide channel axis and the longitudinal guide bar axis of the guide channel are not oriented parallel to each other. The guide channel longitudinal axis is an imaginary axis along which the pin is displaceable within the guide channel. When the pulling element is tensioned between the pusher element and the guide bar such that it extends transversely to the longitudinal axis of the guide bar, significant transverse forces can act on the guide channel. This is avoided by adjusting the orientation of the guide channel.

Advantageously, the longitudinal pull member axis of the pull member and the longitudinal guide channel axis are oriented parallel to each other. The longitudinal axis of the pull element represents an imaginary longitudinal axis of the pull element in the tensioned state. When the longitudinal axes of the pull member and the guide channel are oriented parallel to each other, transverse forces acting on the guide channel are minimized.

It is preferred that the guide channel is oriented in the pusher shoe such that the guide channel longitudinal axis of the guide channel is inclined in the direction of a fixing of the guide bar, at which fixing the force transmission assembly of the spring pull system can be connected to the guide bar. The transverse forces acting on the guide channel are thus reduced.

Advantageously, the fastening is formed by a retaining element which extends from the bar body of the bar transversely to the longitudinal axis of the bar. According to the invention, the holder can be designed in the form of a pin, hook or the like. Alternatively, however, the fastening part can also be formed directly from the guide bar. The invention therefore makes it possible for the guide bar body to have a cutout into which one end of the pull element is inserted.

The longitudinal axis of the pulling element preferably forms an angle with the longitudinal axis of the guide bar when the pulling element is fixed to the guide bar. The longitudinal pull member axis represents an imaginary longitudinal axis of the pull member in the tensioned state. According to the invention, the angle may be an angle greater than 0 degrees. Such angles occur in particular when the guide bar has only a low structural height. The pull element must in this case necessarily be guided askew between the guide bar and the pusher element, since in other cases the spring pull system and the push rod must be arranged very close to one another.

According to an advantageous embodiment of the invention, the side of the pusher shoe facing away from the guide bar has an opening which establishes a passage to a force transmission assembly in the pusher shoe. One can utilize it in the following application scenarios. The pulling piece exerts pulling force on the guide bar. The guide bar thus exerts a pressure on the push rod in the force direction. The push rod is thus held securely between the guide bar and the pusher shoe, but the guide bar cannot be pulled off the push rod by hand so that it can be removed.

The tensile force is excessive. The side of the pusher shoe facing away from the guide bar provides a suitable passage for displacing the pin of the force transmission assembly, for example by means of a tool or a drive. Thereby, the force applied to the guide bar by the pull is reduced and the push rod can be removed.

Advantageously, a portion of the force transfer assembly protrudes from the opening. Said portion may be part of a pin of the force transfer assembly. The pin is thus easily accessible and can be displaced by applying a pressing force. This can be done by the stop being moved so that a pressing force is exerted on the pin and moves it. This may be done by moving the pusher shoe toward the stop, so that the bolt is pressed against the stop, thereby moving the bolt in the pusher shoe.

Preferably, the warp knitting machine has a lift drive mechanism which can apply a force to the force transfer assembly via the lift member such that the force transfer assembly moves within the guide channel. This allows the tension applied to the guide bar to be automatically adjusted. Thus, the input can be made, for example, by the control system of the warp knitting machine, since the bar change is waiting for processing. The bolt of the force transmission assembly is now automatically moved to a new position by the lift drive mechanism and is held in the new position. After the push rod is removed and the guide bar is replaced, a re-entry is made to signal the end of the process. The lift drive then releases the pin so that the spring can move the pin to its initial position again.

The lifting member is preferably a stop which is displaceable such that it can be operatively connected to the force transfer assembly. The stop only contacts the force transfer assembly when it should be displaced. But it is also possible according to the invention that the lifting member is fixedly coupled to the force transfer assembly.

Drawings

An advantageous embodiment of the invention is shown in the figures, in which:

FIG. 1 shows a side view of a spring pull system, a guide bar and a pusher shoe of a warp knitting machine according to the invention, an

Figure 2 shows a cross-sectional schematic view of a spring pull system and pusher shoe.

List of reference numerals

1 spring pulling system

2 guide bar

3 pushing element

4 push rod

Longitudinal axis of 5 guide bar

6 pass power component

7 pin bolt

8 steering member

9 pulling piece

10 fixed part

11 guide bar body

12 spring stack

13 guide channel

14 longitudinal axis of guide channel

15 opening

Detailed Description

Fig. 1 shows a schematic side view of a spring pull system 1, a guide bar 2 and a pusher shoe 3 of a warp knitting machine according to the invention.

Bar 2 is a guide bar. The bar 2 is only partially shown. A push rod 4 is arranged between pusher shoe 3 and guide bar 2. The push rod 4 can transmit forces from a not shown jacquard device of the warp knitting machine to the guide bar 2, so that the guide bar 2 is moved along a guide bar longitudinal axis 5 indicated by a dashed line. The force transmission assembly 6 applies a restoring force to the guide bar 2 such that the guide bar 2 is pressed onto the push rod 4. The force transmission assembly 6 has a bolt 7, a deflection element 8 and a pull element 9. The pulling member 9 is a metal pulling cord. The pulling element 9 is fixed to the fixed part 10 of the bar 2. The fixing portion 10 is a pin, and is fixed to a guide bar body 11 of the guide bar 2. It is clear that the pull 9 is not oriented parallel to the bar longitudinal axis 5.

Fig. 2 shows a schematic sectional view of the spring pull system 1 and pusher shoe 3. The spring pull system 1 is comprised of a force transfer assembly 6 and a plurality of springs in a spring stack 12. The spring applies a return force to the pin 7 of the force transfer assembly 6. Thus, the guide bar 2 is pressed to the push rod 4. The bolt 7 is slidably mounted in a guide channel 13 of the pusher shoe 3. The guide channel longitudinal axis 14 of the guide channel 13 indicated by the dashed line does not run parallel to the bar longitudinal axis 5. The lateral forces in pusher shoe 3 are thus minimized. Pusher shoe 3 has an opening 15, from which bolt 7 protrudes. The bolt 7 is thus accessible from the outside and can be moved as required.

Claims

1. A warp knitting machine comprising: a guide bar (2) which can be moved back and forth along a guide bar longitudinal axis (5); a push rod (4) acting on the guide bar (2); a pushing piece (3) for applying force to the push rod (4); and a spring pulling system (1) pulling the guide bar (2) towards the push bar (4), wherein the spring pulling system (1) has a force transmission assembly (6) and at least one spring, characterized in that the pusher shoe (3) has a guide channel (13), wherein the at least one spring is arranged in the guide channel (13) in the pusher shoe (3), and wherein a part of the force transmission assembly (6) of the spring pulling system (1) is mounted in the guide channel (13).

2. Warp knitting machine according to claim 1, characterized in that the force transfer assembly (6) has a pin (7) mounted in the pusher shoe (3).

3. Warp knitting machine according to one of the preceding claims, characterized in that the force transfer assembly (6) has a pull (9) connectable to the guide bar (2).

4. Warp knitting machine according to claim 3, characterized in that the pulling member (9) is a metal cord.

5. Warp knitting machine according to claim 1, characterized in that the guide channel (13) is oriented in the pusher shoe (3) such that the guide channel longitudinal axis (14) of the guide channel (13) and the guide bar longitudinal axis (5) are not oriented parallel to each other.

6. Warp knitting machine according to claim 3, characterized in that the pulling member longitudinal axis of the pulling member (9) and the guide channel longitudinal axis (14) of the guide channel (13) are oriented parallel to each other.

7. Warp knitting machine according to claim 1, characterized in that the guide channel (13) is oriented in the pusher shoe (3) such that a guide channel longitudinal axis (14) of the guide channel (13) is inclined in the direction of a fixing portion (10) of the guide bar (2) on which the force transmission assembly (6) of the spring pulling system (1) is connectable to the guide bar (2).

8. Warp knitting machine according to claim 7, characterized in that the fixing portion (10) is formed by a retaining element which extends from the bar body (11) of the bar (2) in a direction transverse to the longitudinal bar axis (5).

9. Warp knitting machine according to claim 3, characterized in that the pulling member longitudinal axis of the pulling member (9) forms an angle with the guide bar longitudinal axis (5) when the pulling member (9) is fixed to the guide bar (2).

10. Warp knitting machine according to claim 1, characterized in that the side of the pusher shoe (3) facing away from the guide bar (2) has an opening (15) which establishes access to the force transmission assembly (6) in the pusher shoe (3).

11. Warp knitting machine according to claim 10, characterized in that a part of the force transfer assembly (6) protrudes from the opening (15).

12. Warp knitting machine according to claim 1, characterized in that the machine has a lifting drive which can exert a force on the force transfer assembly (6) via a lifting element, so that the force transfer assembly (6) is displaced in the guide channel (13).

13. Warp knitting machine according to claim 12, characterized in that the lifting member is a stop which is movable so that it can be brought into operative connection with the force transfer assembly (6).