Continuous conductive bend guide belt device for needle connection alarm of carding machine

Abstract

The utility model relates to a carding machine needle connection alarm continuous conductive bend guide belt device, and relates to a movable flat clothing and cylinder clothing gauge needle connection alarm device of a carding machine, in particular to a bend guide belt device, which comprises a bend and a guide belt, the guide belt is a wear-resistant conductive belt, and the wear-resistant conductive belt is mounted on the outer contact surface of the bend in an embedded manner. The wear-resistant conductive belt comprises a nylon base material layer and a carbon fiber conductive layer, the carbon fiber conductive layer is compounded on the nylon base material layer, the carbon fiber conductive layer is a uniformly-distributed composite body of nylon and carbon fibers, and at least one conductive column is arranged between the carbon fiber conductive layer and the curved rail. The gauge needle connecting alarm device has good wear resistance and conductivity, and can ideally meet the working condition requirements of gauge needle connecting alarm of movable flat clothing and cylinder clothing on the carding machine. Compared with the prior art, the production is more convenient and simpler, and the wear resistance, the conductivity, the service life and the reliability are all guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to textile machinery equipment, especially to the metal detection device for the distance connection alarm between the movable flat card clothing and the cylinder clothing of the carding machine, and in particular to the curved rail guide belt device. BACKGROUND

[0002] In textile machinery equipment, the carding machine is one of the most important devices in the front spinning textile equipment and is widely used in various fields of the textile industry. The cylinder and the movable flat card are the two most important carding elements in the carding machine. The movable flat card and the cylinder together form the main carding area of the carding machine, and the two alternately act on the fibers to finely card them. This process helps to open the fiber bundle, straighten and parallel arrange the fibers, thereby improving the separation degree and neatness of the fibers. At the same time, it helps to remove impurities and short fibers in the fibers, and reasonable cooperation of the flat card and the cylinder can reduce the damage to the fibers. By optimizing the distance and the carding force, the fiber breakage and damage in the carding process can be reduced, and the integrity of the fiber and the quality of the yarn can be improved.

[0003] At present, the connection between the cylinder clothing and the movable flat card clothing on the carding machine is as shown in Figures 1-3

[0004] The movable flat card 5 moves forward and backward on the curved rail 1, which is fixed on the circular wall plate 7. The distance between the movable flat card 5 and the cylinder 6 is adjusted by four screw rods below the curved rail 1.

[0005] The distance between the cylinder clothing and the movable flat card clothing is adjusted by a involute type distance adjusting mechanism, which includes a curved rail 1, a guide belt 2, a gear 4 and a rack 3. The guide belt 2 is fixed on the rack 3, and the involute type matching working surface is formed between the inner arc surface of the guide belt 2 and the outer arc surface of the curved rail 1. The gear 4 is engaged with the rack 3. By rotating the gear 4, the guide belt 2 can move forward and backward along the involute arc surface of the curved rail, thereby achieving the purpose of accurately adjusting the distance of the movable flat card 5.

[0006] The existing carding machine has two working modes:

[0007] The first working mode is that the movable flat card unit directly contacts with the curved rail installed on the cylinder wall plate. This contact mode has the following disadvantages: it is easy to cause wear of the joint of the movable flat card, which causes the distance between the movable flat card clothing and the cylinder clothing to become smaller after wear, resulting in the needle connection of the cylinder clothing and the movable flat card clothing, thereby affecting the customer's production quality index. At the same time, the sharpness of the cylinder clothing and the movable flat card clothing decreases significantly, and in severe cases, the cylinder clothing and the movable flat card clothing will be scrapped at the same time. The second disadvantage is that it is not convenient to adjust the distance. When adjusting the distance between the movable flat card clothing and the cylinder clothing, the six-point adjustment method is needed to adjust the distance of each point of the movable flat card clothing and the cylinder clothing. The advantage is that the installation is convenient, and the needle connection can be timely alarmed and stopped. ​

[0008] The second working mode is that the movable flat plate unit is in contact with the whole adjusting curved rail installed on the cylinder wall plate, and the whole adjusting curved rail is also called an involute type gauge adjusting mechanism. The gauge between the cylinder card clothing and the movable flat plate card clothing is completed by the involute type gauge adjusting mechanism, which mainly consists of a curved rail, a guide belt, a gear and a rack. The guide belt is fixed on the rack, and the involute type matching working surface is formed between the inner arc surface of the guide belt and the outer arc surface of the curved rail. The gear is engaged with the rack. When the gear is rotated, the guide belt can move forward and backward along the involute arc surface of the curved rail, so as to achieve the purpose of accurately adjusting the gauge of the movable flat plate. This is the preferred scheme in the current industry. In this scheme, how to realize the needle contact alarm between the movable flat plate card clothing and the cylinder card clothing has a serious deficiency. The applicant discloses a scheme in CN202122983573.9, which comprises a steel curved rail and a non-metal guide belt. The non-metal guide belt is fixed on the guide curve surface of the steel curved rail, and a conductive insert is arranged on the non-metal guide belt. The thickness of the conductive insert is the same as that of the non-metal guide belt. In this way, during the working process of the carding machine, the sliding toe blocks at both ends of the movable flat plate slide along the non-metal guide belt on the steel curved rail. In the sliding process, the movable flat plate assembly and the non-metal guide belt are always in a conductive connection state through the conductive insert. As long as the card clothing on the movable flat plate contacts the card clothing on the cylinder, that is, the instant when the two needle contacts, the automatic alarm circuit can be connected, so that the carding machine can automatically alarm and stop when the needle of the movable flat plate card clothing contacts the needle of the cylinder card clothing.

[0009] However, this embedded carbon graphite scheme still has the following problems:

[0010] ①During the carding process, individual movable flat plates may have contacted the needle, but the movable flat plate and the curved rail have not been timely conductive and adjusted the movable flat plate, which may cause damage to the movable flat plate card clothing and the cylinder card clothing;

[0011] ②The conductive effect may not be very ideal;

[0012] ③Because the movable flat plate unit is in long-term contact with the conductive nylon guide belt, the guide belt is easily worn out;

[0013] ④The manufacturing process is relatively complicated. SUMMARY

[0014] The purpose of the present application is to provide a continuous conductive curved rail guide belt device for needle contact alarm of a carding machine, which can provide more stable and reliable conductive function when the needle of the movable flat plate card clothing contacts the needle of the cylinder card clothing, and ensure that the carding machine automatically alarms and stops.

[0015] The technical scheme adopted in the present application is:

[0016] The application discloses a continuous conductive curved rail guide belt device for a carding machine needle alarm, which comprises a curved rail and a guide belt.

[0017] Further, the warp of the carbon fibers in the carbon fiber conductive layer is continuously and uniformly distributed on the outer surface of the nylon base material layer along the length direction of the guide belt.

[0018] Further, the warp of the carbon fibers in the carbon fiber conductive layer is continuously and uniformly distributed on the outer surface of the nylon base material layer along the width direction of the guide belt.

[0019] Further, the thickness of the carbon fiber conductive layer is 0.5-5 mm.

[0020] Further, grooves are arranged on the outer side of the carbon fiber conductive layer along the width direction of the guide belt at intervals, so as to reduce the friction area.

[0021] Further, the conductive column is a metal wire.

[0022] Further, the conductive column and the carbon fiber conductive layer are integrated and homogeneous.

[0023] As a special case of the application, the wear-resistant conductive belt is the carbon fiber conductive layer.

[0024] The wear-resistant conductive belt in the application adopts the composite material of nylon and carbon fibers, wherein the conductive material is carbon fiber, because the carbon fiber has high rigidity, and can make the composite material have higher modulus and rigidity.

[0025] The application directly designs the guide belt of the carding machine as the wear-resistant conductive belt structure of the carbon fiber and nylon composite which can continuously conduct electricity, and the wear-resistant conductive belt has good wear resistance and conductivity, and can ideally meet the working condition requirements of the metal detection device for the needle alarm of the distance between the movable flat needle cloth and the cylinder needle cloth of the carding machine. The technical problems in the field are solved. Because the carbon fiber can conduct electricity and has wear resistance, the strength is greatly improved, and the service life of the conductive nylon guide belt is increased.

[0026] Because the wear-resistant conductive belt can conduct electricity, when the movable flat needle cloth and the cylinder needle cloth are connected, the movable flat adjusting device can be adjusted in a very short time. Compared with the prior art, the application makes production more convenient and simple, and the wear resistance, conductivity, service life and reliability are guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1A schematic diagram of the end face structure of the movable cover plate and cylinder in the working state of a carding machine;

[0028] Figure 2 This is a schematic diagram of the axial cross-sectional structure of an existing curved track guide belt component;

[0029] Figure 3 This is a cross-sectional enlarged view of the working principle of the curved track component, showing a structural schematic diagram of the movable cover plate sliding along the guide belt on the outer arc surface of the curved track.

[0030] Figure 4 This is a schematic diagram of the structure of the present invention;

[0031] In the diagram: 1-curved track; 2-conductor belt; 21-nylon substrate layer; 22-carbon fiber conductive layer; 23-groove;

[0032] 3-Rack; 4-Gear; 5-Modible cover plate; 6-Cylinder; 7-Circular wall plate; 8-Conductive post. Detailed Implementation

[0033] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0034] Example 1: A continuous conductive curved guide belt device for carding machine needle alarm, such as... Figure 4 As shown, it includes a curved track 1 and a guide belt 2. The guide belt 2 is a wear-resistant conductive belt, which is installed on the outer contact surface of the curved track 1 in an inlay manner. The wear-resistant conductive belt includes a nylon substrate layer 21 and a carbon fiber conductive layer 22. The carbon fiber conductive layer 22 is composited on the nylon substrate layer 21. The carbon fiber conductive layer 22 is a uniformly distributed composite of nylon and carbon fiber. There are three conductive posts 8 between the carbon fiber conductive layer 22 and the curved track 1. The conductive posts 8 are metal wires.

[0035] In this example, the warp threads of the carbon fiber conductive layer 22 are continuously and uniformly distributed on the outer surface of the nylon substrate layer 21 along the length direction of the conductive strip 2, and the thickness of the carbon fiber conductive layer 22 is 0.5~5 mm.

[0036] Grooves 23 are provided at intervals along the width direction of the conductive strip 2 on the outer surface of the carbon fiber conductive layer 22 to reduce the friction area.

[0037] Example 2: The difference from Example 1 is that the conductive pillar 8 and the carbon fiber conductive layer 22 are an integrated homogeneous body.

[0038] Example 3: As a special case of Example 1, the wear-resistant conductive strips are all carbon fiber conductive layers 22.

Claims

1. A carding machine needle alarm continuous conductive curved track guide belt device, comprising a curved track (1) and a guide belt (2), characterized in that: The conductive band (2) is a wear-resistant conductive band, which is installed on the outer contact surface of the curved rail (1) in an inlaid manner. The wear-resistant conductive band comprises a nylon base layer (21) and a carbon fiber conductive layer (22). The carbon fiber conductive layer (22) is compounded on the nylon base layer (21). The carbon fiber conductive layer (22) is a uniform compound of nylon and carbon fiber. There is at least one conductive column (8) between the carbon fiber conductive layer (22) and the curved rail (1).

2. A needle alarm continuous conductive curved track guide strip device for a carding machine according to claim 1, characterized in that: The warp of the carbon fiber in the carbon fiber conductive layer (22) is continuously and uniformly distributed on the outer surface of the nylon base layer (21) along the length direction of the conductive band (2).

3. A needle alarm continuous conductive curved track guide strip device for a carding machine according to claim 1, characterized in that: The warp of the carbon fiber in the carbon fiber conductive layer (22) is continuously and uniformly distributed on the outer surface of the nylon base layer (21) along the width direction of the conductive band (2).

4. A needle alarm continuous conductive track guide for a carding machine according to claim 1, characterized in that: The thickness of the carbon fiber conductive layer (22) is 0.5-5 mm.

5. A needle alarm continuous conductive track guide for a card according to claim 1, wherein: 5 Grooves (23) are arranged on the outer side of the carbon fiber conductive layer (22) along the width direction of the conductive band (2) at intervals, so as to reduce the friction area.

6. A needle alarm continuous conductive track guide for a carding machine according to claim 1, characterized in that: The conductive column (8) is a metal wire.

7. A needle alarm continuous conductive track guide for a carding machine according to claim 1, characterized in that: The conductive column (8) and the carbon fiber conductive layer (22) are an integrated homogeneous body.

8. A needle alarm continuous conductive track guide for a carding machine according to claim 1, characterized in that: The wear-resistant conductive band is the carbon fiber conductive layer (22).

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