CN202644014U

CN202644014U - Precise length control device control circuit for roving frame

Info

Publication number: CN202644014U
Application number: CN 201220314694
Authority: CN
Inventors: 李汉利; 王建君; 王维民; 李汉顺; 李希波
Original assignee: SHANDONG HONGYE TEXTILE CO Ltd
Current assignee: SHANDONG HONGYE TEXTILE CO Ltd
Priority date: 2012-07-02
Filing date: 2012-07-02
Publication date: 2013-01-02
Anticipated expiration: 2022-07-02

Abstract

The utility model discloses a precise length control device control circuit for a roving frame. The precise length control device control circuit for the roving frame comprises a filled roving indicating circuit and a shutdown circuit, and further a filled roving shutdown circuit is added. The filled roving shutdown circuit comprises two parallel connecting subcircuits connecting with a power line. A first subcircuit is composed of a travel switch CTR, a normal close contact of a contactor switch SJ and a coil of a contactor switch K1 in series. A second subcircuit is composed of a normal open contact of the contactor switch SJ and a switch Y1 of a reversing air cylinder in series. The normal close contact of the contactor switch SJ and two ends of the coil of the contactor switch K1 in the first subcircuit are in parallel connection with a coil of the contactor switch SJ. The normal open contact of the contactor switch SJ is connected with the filled roving indicating circuit in series and a normal close contact of the contactor switch K1 is connected with the shutdown circuit in series. The precise length control device control circuit for the roving frame has the advantages that labor intensity of spun yarn operators can be relieved and production efficiency can be improved.

Description

The accurate length control device control circuit of Speed frames

Technical field

The utility model relates to a kind of textile machinery control device, particularly the accurate length control device control circuit of a kind of Speed frames.

Background technology

Speed frames are one of important procedure machinery in the cotton spinning engineering, but the length between every of the rove that existing Speed frames are produced is uneven, differs tens of rice, is difficult to control.

The rove full packages stops, and should accomplish " three is fixed ", i.e. fixed length, location, orientation: certain rove spinning length in the time of must reaching when fixed length refers to full yarn, and be convenient to carry out pagoda fragmentary works method or whole at fine spining machine and change yarn; The location refers to that lifting rail residing position when doffing is certain; The direction of lifting rail motion was certain when orientation referred to doff.Operation for the ease of creeling on the fine spining machine, 1/3-1/2 At The Height that General Requirements lifting rail drops to package doffs, domestic Speed frames now all adopt the contact with the rail lifting to start full yarn automatic stop arrangement, during normal spinning, though the contact is touched travel switch with the rail lifting and is connected circuit, but because of less than yarn, the make and break contact of the long table of meter disconnects, so circuit is obstructed, when length-counted device sent full yarn signal, the full packages signal lamp was bright, contact travel switch then, circuit is connected, and makes main motor, the stall of air draught motor, and automatic doffing mechanism starts.Because the parking of Speed frames is with good conditionsi, count the different length inaccuracy that cause rove long and parking spot, generally at 40 meters to 70 meters, individual other can reach more than 100 meters, makes troubles to following process like this.Soft end generally can only be used for the production of secondary board yarn after special equipment is processed, the more wastes of soft end yield are just larger, cause processing cost to improve, for example Siro-spun yarn---it is by two yarn feeding Spinning Draft Zones at regular intervals that-Sai network spins, twist resultant yarn after the drawing-off respectively, when two rove length there are differences, after a rove spins sky, tender must take away another rove, but for middle coarse yarn, when tender does not in time find, run sub-thread, broken end in the situation of tension stability, also can not occur, most of one-ply yarn can go out from the network operation sheet, flow in the final products and causes a wrong yarn but also have a small amount of one-ply yarn.

Summary of the invention

Technical problem to be solved in the utility model provides the accurate length control device control circuit of a kind of Speed frames, has improved production efficiency.

The utility model is realized by following measures:

The accurate length control device control circuit of a kind of Speed frames of the present utility model, comprise full yarn indication loop and parking loop, also increased full yarn parking loop, described full yarn parking loop comprises two parallel branches that are connected on the power line, branch road one is by travel switch CTR, the normally-closed contact of contactor SJ, the coil of contactor K1 is composed in series, branch road two is by the normally opened contact of contactor SJ, reversing cylinder switch Y1 is composed in series, wherein the coil two ends of the normally-closed contact of contactor SJ and contactor K1 are parallel with the coil of contactor SJ in the branch road one, the normally opened contact of contactor SJ is connected in the full yarn indication loop, and the normally-closed contact of contactor K1 is connected in the parking loop.

The beneficial effects of the utility model are:

The utility model can make the difference in length between every rove shorten in 5 meters, make fine spining machine collective change yarn and be achieved, and has reduced the generation of soft end, lap waste, reduces formation yarn nep, has alleviated spun yarn operative employee's labour intensity, has improved production efficiency.

Description of drawings

Fig. 1 is the circuit theory diagrams in the full yarn parking loop of the utility model.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is done specific descriptions.

Shown in Figure 1, the accurate length control device control circuit of a kind of Speed frames of the present utility model, comprise full yarn indication loop and parking loop, also increased full yarn parking loop, full yarn parking loop comprises two parallel branches that are connected on the power line, branch road one is by travel switch CTR, the normally-closed contact of contactor SJ, the coil of contactor K1 is composed in series, branch road two is by the normally opened contact of contactor SJ, reversing cylinder switch Y1 is composed in series, wherein the coil two ends of the normally-closed contact of contactor SJ and contactor K1 are parallel with the coil of contactor SJ in the branch road one, the normally opened contact of contactor SJ is connected in the full yarn indication loop, and the normally-closed contact of contactor K1 is connected in the parking loop.

Operation principle of the present utility model: express when length is set in that the Speed frames meter is long, travel switch CTR is closed, and contactor K1 coil gets electric, and the normally-closed contact of contactor K1 disconnects, thereby the parking loop disconnects, the Speed frames parking; Contactor SJ coil gets electric work simultaneously, and after Speed frames came to a complete stop, contactor SJ normally-closed contact disconnected by time-delay, and contactor SJ normally opened contact is closed, contactor K1 coil losing electricity, and the normally-closed contact of contactor K1 is closed, and recover in the parking loop; Reversing cylinder switch Y1 is closed, that is to say reversing cylinder work, makes the Speed frames rail guarantee to provide condition for doffing in the position that makes progress; Doff complete after, the long table of meter resets, travel switch CTR disconnects, device recovers, the normal moving row of driving.

The utility model in theory should be in full accord with length between the board rove, but because tension difference and misdraft between the rove spindle, with length between the board rove generally within 2 meters, can be above 10 meters with the rove difference in length between the kind different platform, can reduce in a large number the generation of soft end, difference in length between every rove is shortened in 5 meters, making fine spining machine collective change yarn is achieved, reduced the generation of soft end, lap waste, reduce formation yarn nep, alleviate spun yarn operative employee's labour intensity, improved production efficiency.

The above-mentioned embodiment of the utility model just illustrates, and is not only, all in the utility model scope or the change that is equal in the scope of the present utility model all surrounded by the utility model.

Claims

1. the accurate length control device control circuit of Speed frames, comprise full yarn indication loop and parking loop, it is characterized in that: also increased full yarn parking loop, described full yarn parking loop comprises two parallel branches that are connected on the power line, branch road one is by travel switch CTR, the normally-closed contact of contactor SJ, the coil of contactor K1 is composed in series, branch road two is by the normally opened contact of contactor SJ, reversing cylinder switch Y1 is composed in series, wherein the coil two ends of the normally-closed contact of contactor SJ and contactor K1 are parallel with the coil of contactor SJ in the branch road one, the normally opened contact of contactor SJ is connected in the full yarn indication loop, and the normally-closed contact of contactor K1 is connected in the parking loop.