WO2001034887A1

WO2001034887A1 - An electronic lifting heald mechanism for a jaquard

Info

Publication number: WO2001034887A1
Application number: PCT/CN2000/000414
Authority: WO
Inventors: Hailin Zhang
Original assignee: Hailin Zhang
Priority date: 1999-11-05
Filing date: 2000-11-02
Publication date: 2001-05-17
Also published as: AU1266401A; CN2390897Y

Abstract

This invention relates to an electronic lifting heald mechanism for a Jaquard comprising an electronicmagnet, electromagnetically operating movable hook mechanism, a single needle having a head with a hook and a plate. The plate with an opening is fixed on a predetermined position. The middle portion of the single needle has an annular limit stop. The single needle can go through the opening on the plate, and be locked on the plate by the limit stop. The movable hook mechanism which is above the plate and close to the side of the top end of the single needle is fixed on a predetermined position of the Jaquard. The electronicmagnet which is below the movable hook mechanism is fixed on a predetermined position or mounted on the plate.

Description

Electronic lifting mechanism of jacquard machine Technical field

The present invention relates to an electronic healding mechanism of a jacquard machine to replace the pattern-type healding mechanism of a traditional jacquard machine.

current technology

The traditional jacquard machine is composed of a needle selection mechanism and a hedging mechanism. The needle selection mechanism includes a pattern plate, a flower tube, a horizontal needle, etc. The structure is complicated and the production of the pattern plate is time-consuming, labor-intensive, and costly. The head of the vertical needle has a hook. The blade of the knife box can catch or not hook the vertical needle to form a vertical needle or rise with the blade or fall with the pallet. When the vertical needle is moved up or down, the warp yarn is raised or lowered to form a shed. The lifting mechanism is simple, but the blade is fixed, and the hook cannot be controlled directly. It can only be achieved by relying on the horizontal needle of the needle selection mechanism to control the vertical needle.

I have published a Chinese patent CN N 0 2 8 7 7 C CN 9 2 1 0 2 5 3 5. 1 discloses a non-patterned jacquard machine, which consists of a simplified needle selection mechanism and a hedging mechanism. The cooperation between the two parts is too complicated.

Chinese patent CN 9 6 2 3 0 1 5 6 6 with publication number CN 2 2 7 1 5 3 8 Y discloses an electronic jacquard machine, which is composed of a frame, a pattern control device, a transmission mechanism, a needle holder, Hanging board and zeroing mechanism. Its structure is simple. The characteristic is that the solenoid valve is arranged on the top of the rack. The vertical needle is lifted to the top to contact the solenoid valve by the lift. When the solenoid valve is not open, the vertical needle is lowered with the lifting plate. The valve remains energized until the next cycle. The vertical needle controls the warp to form a shed. The disadvantage of this solution is the long power-up time. Furthermore, the suction force of the solenoid valve determines the lifting force (g / root) of the jacquard machine. The lifting force required for various weaving situations varies widely. In order to meet the maximum lifting force and long-term energization, the power of the electromagnet must be large, the corresponding DC power supply is also large, and the increased cost also consumes more energy.

Object of the invention

The object of the present invention is to provide a novel electronic weaving mechanism of a jacquard machine, which has the advantages of simple structure, low energy consumption, and large weaving capacity.

Technical solutions

The electronic jacquard mechanism of the jacquard machine of the present invention comprises an electromagnet, a movable hook mechanism controlled by an electromagnet, a single vertical needle with a hook on the head and a pallet, and is characterized in that: the pallet is fixed on the jacquard machine. A predetermined position, and an opening; a ring-shaped limiting portion in the middle of the single vertical needle, the single vertical needle passes through the opening on the supporting plate and is locked on the supporting plate by the limiting portion; the movable hook mechanism Fixed on the predetermined part of the jacquard machine Above the side close to the upper end of the single vertical needle; the electromagnet is fixed on a predetermined part of the jacquard machine or installed on a pallet and below the movable hook mechanism.

The movable hook mechanism includes: a base body which is rectangular and has a notch on one side, and two ends are formed on the upper and lower sides of the notch; concentric circular holes are opened in the longitudinal direction of the two ends, and the middle part of the base body is opened laterally. There is a tapered hole; a movable hook shaft is connected to the tapered hole on the base body, the movable hook has a hook portion at one end and a protruding end at the other end, and the hook portion is aligned with the upper end of the vertical needle with a hook head; a pull rod, A cap end is formed at the upper end of the pull rod, the pull rod extends through circular holes at both ends of the base body, and the lower end of the pull rod is fixedly connected with an armature; a return spring is sleeved between the cap end at the upper end of the pull rod and the base body.

The pull rod can move up and down, and can pull or push the movable hook; the plane of the armature corresponds to the end of the electromagnet core.

The protruding end of the movable hook is fixedly connected to the middle part of the pull rod.

In the electronic jacquard mechanism of the jacquard machine of the present invention, the controllable movable hook mechanism replaces the blade of the traditional jacquard machine, but under the action of the corresponding electromagnet, it can replace the pattern plate for needle selection to achieve the vertical control of the electronically controlled jacquard machine. The needle is raised and lowered to form a weaving shed.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic structural diagram of a first embodiment of an electronic lifting mechanism of the present invention.

FIG. 2 is a schematic diagram of the working process of the electronic elevating mechanism of the present invention.

FIG. 3 is a schematic structural diagram of a second embodiment of an electronic lifting mechanism according to the present invention.

FIG. 4 is a schematic structural diagram of a third embodiment of the electronic lifting mechanism of the present invention.

The specific content of the embodiments of the present invention will be described in detail below with reference to the drawings.

Examples

The first embodiment is shown in FIG. 1. The electronic lifting mechanism is composed of an electromagnet 1, a movable hook mechanism 2 controlled by the electromagnet 1, a single vertical needle 3 with a hook on the head, and a pallet 4. The electromagnet 1 can be installed on the pallet 4, and the pallet 4 It is fixed on a predetermined position of the jacquard machine, and can also be installed on an additional fixing plate. Figure 1 shows the case of a single-action jacquard machine with a middle opening. The electromagnet 1 is mounted on a fixed plate (not shown), and the movable hook mechanism 2 is mounted at a predetermined (blade) position of the jacquard machine. Opening 41; The middle part of the single vertical needle 3 has a ring-shaped limiting portion 31, the vertical needle 3 passes through the opening 41 on the supporting plate 4 and is locked on the supporting plate 4 by the limiting portion 31; The movable hook mechanism 2 is fixed on a predetermined position of the jacquard machine, and is above the pallet 4 and near a side of the upper end of the vertical needle 3; the electromagnet 1 is fixed on the predetermined position of the jacquard machine or installed on the pallet 4 And below the movable hook mechanism 2. The movable hook mechanism 2 includes: a base 21 having a rectangular shape and a notch 2 7 on one side, and two end portions 2 8 are formed above and below the notch 2 7, and a longitudinal opening is formed on the end portions 28. A concentric circular hole 2 8 1 is provided with a tapered hole 2 6 laterally in the middle of the base 21; a movable hook 2 2 is pivotally connected to the tapered hole 2 6 on the base 21 and can be rotated around the shaft in one direction. The movable hook 2 2 has a hook portion 2 2 1 at one end and a protruding end 2 2 2 at the other end. The hook portion 2 2 1 is aligned with a hook head 3 2 at the upper end of the vertical needle 3; An upper end of the tie rod 2 3 forms a cap end 2 3 1, the tie rod 2 3 penetrates into a circular hole 2 8 1 at both ends 2 8 of the base body 2 1, and a lower armature 2 4 is fixedly connected to the lower end of the tie rod 2 3; The return spring 2 5 is sleeved between the cap end 2 3 1 and the base body 2 1 at the upper end of the pull rod 23. The spring 25 can restore the pulled rod 2 3 to the original position. The protruding end 2 2 2 of the movable hook 2 2 is fixedly connected to the middle portion of the pull rod 23.

The pull rod 2 3 can move up and down, and can pull or push the movable hook 2 2; the flat surface of the armature 24 corresponds to the core end of the electromagnet 1. When the pull rod 2 3 is pulled downward, the movable hook 2 2 can be moved, so that the hook originally exposed outside the base body 2 1 is contracted into the base body 2 1.

Fig. 1 shows the state of the opening and closing movement of the jacquard machine when fully closed. At this time, the movable hook mechanism 2 is lowered to the lowest position, and the supporting plate 4 is raised to the highest position. The vertical head 3 supported on the supporting plate 4 has a hooked head 3 2 that has opened the movable hook 2 2 and is located at the movable hook 2 2 above. The plane of the armature 24 is aligned with and contacts the core end of the electromagnet 1.

When the jacquard opening and closing movement changes from closing to opening:

1) The computer has provided a signal to the electromagnet 1, the electromagnet 1 sucks the armature 2 4 and continues to open the movement, the pull rod 2 3 pulls the armature 2 4 down, and the movable hook 2 2 retracts into the base 2 1. When the hook of the movable hook 2 2 rises above the vertical needle 3 with the hook head 3 2, the signal of the electromagnet provided by the computer ends, the vertical needle 3 with the hook head 3 2 is not hooked, and it descends to the lowest with the pallet 4 position.

2) The computer does not provide a signal to the electromagnet 1, the armature 2 4 is not attracted by the electromagnet, the pull rod 2 ^{3 has} no movement, the movable hook 2 2 is still exposed outside the base 21 1, the movable hook mechanism 2 rises, and the movable hook 2 2 Hook 3 2 that hooks the head of the vertical needle 3-straight up to the highest position. The vertical needle 3 is raised or lowered, and the warp yarn is pulled to form a jacquard weave.

FIG. 2 is a working principle diagram of the electronic comprehensive lifting mechanism of the present invention. In the picture:

A) The opening and closing movement of the jacquard is in a state of being fully closed.

B) The initial state of opening and closing movement of the jacquard. The computer has provided a signal to the electromagnet 1, the electromagnet 1 sucks the armature 2 4, the pull rod 2 3 is pulled down, and the movable hook 2 2 is retracted into the base 2 1.

C) For the open movement a little, the hook at the end of the movable hook 2 2 2 2 1 rises to the hook of the head of the vertical needle 3 3 2 above. The computer stops providing signals to the electromagnet 1, the movable hook 2 2 is exposed outside the base 21, and the vertical needle 3 cannot be hooked, and the vertical needle 3 descends with the support plate 4. The time that the electromagnet 1 attracts the armature 2 4 accounts for about 1 / of the full cycle

4.

D) When the opening and closing movement is fully open, the computer provides the vertical pin 3 corresponding to the over-signal to the electromagnet 1 and is lowered to the lowest position.

E) For the opening and closing movement to the B state, the computer does not provide a signal to the electromagnet 1, the armature 2 4 is disengaged from the electromagnet 1, the pull rod 2 3 is not pulled, the movable hook 2 2 is still exposed outside the base 2 1 and the movable hook 2 The hook part 2 2 1 at one end hooks the hook 3 2 at the head of the vertical needle 3, and the movable hook 2 2 rises.

F) For the opening and closing movement to be in an open state, the computer does not provide a signal to the electromagnet 1 and the vertical needle 3 corresponding to the movable hook mechanism 2 rises to the highest position.

FIG. 3 shows a second embodiment of the electronic lifting mechanism of the present invention. Most of them are the same as the first embodiment, except that the movable hook mechanism 2 is located on the other side of the vertical needle 3, and the movable hook 2 2 ′ is generally L-shaped.

FIG. 4 shows a third embodiment of the electronic lifting mechanism of the present invention. Most of them are the same as the first embodiment, except that the middle portion of the tie rod 2 3 ′ has a boss, one end of the movable hook 2 2 ′ forms a bent portion downward, and the return spring 2 5 It is located between the bent portion of the base 21 and the movable hook 2 2 ′ '.

Advantages compared to the prior art

Compared with the prior art, the present invention has the following significant advantages:

1. The movable hook mechanism controlled by the electromagnet makes the structure of the electronic jacquard simple. compact.

2. The mechanism requires only a small suction electromagnet to perform the function reliably. The electromagnet used only needs an electromagnetic suction force of about 100 grams, which is much lower than that of the prior art, which is 12,000 grams, and the power-on time is extremely short, about 1 / 10 cycles, greatly reducing energy consumption.

3. The lifting of the vertical needle is carried by the movable hook to the hook on the head of the vertical needle. It is pure mechanical force and the lifting force is extremely large, which can meet any weaving needs.

Claims

Rights request

1. An electronic lifting mechanism of a jacquard machine, comprising an electromagnet, a movable hook mechanism controlled by an electromagnet, a single vertical needle with a hook on the head and a pallet, which are characterized by:

The supporting plate is fixed on a predetermined part of the jacquard machine and has an opening; a middle portion of the single vertical needle has a ring-shaped limiting portion, and the single vertical needle passes through the opening on the supporting plate and is locked by the limiting portion. Support plate; the movable hook mechanism is fixed on the predetermined position of the jacquard machine, and is above the support plate and near the upper end of the single vertical needle; the electromagnet is fixed on the predetermined position of the jacquard machine or installed on the support plate Up and below the movable hook mechanism.

2. The electronic lifting device of the jacquard machine according to claim 1, wherein the movable hook mechanism comprises: a base body, which is rectangular and has a notch on one side, and two of the notch are formed on the upper and lower sides of the notch. An end portion is provided with concentric circular holes in the longitudinal direction of the two end portions, and a tapered hole is laterally opened in the middle of the base body; a movable hook shaft is connected to the tapered hole on the base body, and one end of the movable hook has a hook portion, The other end has a protruding end, the hook portion is aligned with the upper end of the vertical needle with a hook head; a pull rod, a cap end is formed at the upper end of the pull rod, and the pull rod extends through the circular holes at the two ends of the base body. An armature is fixedly connected to the lower end; a return spring is sleeved between the cap end of the upper end of the pull rod and the base body.

3. The electronic lifting device of the jacquard machine according to claim 2, wherein the pull rod can move up and down and can pull or push the movable hook; the plane of the armature corresponds to the end of the electromagnet core.

4. The electronic lifting device of the jacquard machine according to claim 2, wherein the protruding end of the movable hook is fixedly connected to the middle of the drawbar.