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

Abstract

The invention 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 invention relates to textile machinery and equipment, in particular to a metal detection device for alarming the spacing of active flat card clothing and cylinder card clothing of a carding machine, and specifically to a curved track belt guide device. Background Art

[0002] Among textile machinery and equipment, the carding machine is one of the most important equipment in the pre-spinning textile equipment, and is also widely used in various fields of the textile industry. The cylinder and movable cover in the carding machine are the two most important combing components on the carding machine. The movable cover and the cylinder together constitute the main combing area of ​​the carding machine, and the fibers are finely combed through the alternating actions of the two. This process helps to loosen the fiber bundles, straighten the fibers and arrange them in parallel, thereby improving the separation and neatness of the fibers. At the same time, it helps to remove impurities and short fibers in the fibers. Reasonable cooperation between the cover and the cylinder can reduce damage to the fibers. By optimizing the spacing and combing force, the breakage and damage of the fibers during the combing process can be reduced, and the integrity of the fibers and the quality of the yarn can be improved.

[0003] At present, the connection between the cylinder card clothing and the movable flat card clothing on the carding machine is as follows Figure 1-Figure 3 As shown, The movable cover plate 5 moves forward and backward on the curved rail 1, and the curved rail 1 is fixed on the circular wall plate 7. The distance between the movable cover plate 5 and the cylinder 6 is adjusted by four screws under the curved rail 1.

[0004] The spacing between the cylinder card clothing and the movable cover plate card clothing is achieved by an involute spacing adjustment mechanism, which includes a curved track 1, a guide belt 2, a gear 4 and a rack 3. The guide belt 2 is fixed on the rack 3. An involute matching working surface is formed between the inner arc surface of the guide belt 2 and the outer arc surface of the curved track 1. The gear 4 is meshed with the rack 3. By rotating the gear 4, the guide belt 2 can move back and forth along the involute arc surface of the curved track, thereby achieving the purpose of accurately adjusting the spacing of the movable cover plate 5.

[0005] There are two working modes of existing carding machines: The first working mode is that the movable cover unit is in direct contact with the curved rail installed on the cylinder wall plate. The disadvantage of this contact mode is that it is easy to cause wear of the movable cover joint. After wear, the spacing between the movable cover needle clothing and the cylinder needle clothing becomes smaller, causing the cylinder needle clothing and the movable cover needle clothing to connect needles, thereby affecting the customer's production quality indicators. At the same time, the sharpness of the movable cover needle clothing and the cylinder needle clothing is significantly reduced. In severe cases, the cylinder needle clothing and the movable cover needle clothing will be scrapped at the same time. The second disadvantage is that it is inconvenient to adjust the spacing. When adjusting the spacing between the movable cover needle clothing and the cylinder needle clothing, it is necessary to use the six-point adjustment method to adjust the spacing of each point of the movable cover needle clothing and the cylinder needle clothing. The advantage is that it is easy to install and can alarm and stop in time when the needle clothing connects needles.

[0006] The second working mode is that the movable cover plate unit contacts the integral adjustment curved track installed on the cylinder wall plate. This integral adjustment curved track is also called an involute type spacing adjustment mechanism. The spacing between the cylinder needle clothing and the movable cover plate needle clothing is completed by the involute type spacing adjustment mechanism, which is mainly composed of a curved track, a guide belt, a gear and a rack. The guide belt is fixed on the rack, and an involute type matching working surface is formed between the inner arc surface of the guide belt and the outer arc surface of the curved track. The gear is meshed with the rack, and the gear is rotated. The guide belt can move back and forth along the involute arc surface of the curved track, thereby achieving the purpose of accurately adjusting the spacing of the movable cover plate. This is the preferred solution in the industry at present. In this solution, there are serious deficiencies in how to realize the spacing needle connection alarm between the movable cover plate needle clothing and the cylinder needle clothing. The solution disclosed by the applicant in CN202122983573.9 is the most advanced solution at present. The curved track belt guide device includes a steel curved track and a non-metallic guide belt, which is fixed on the guide curved surface of the steel curved track. A conductive insert is provided on the non-metallic guide belt, and the thickness of the conductive insert is the same as that of the non-metallic guide belt. In this way, during the operation of the carding machine, the sliding heel-toe blocks at both ends of the movable cover slide along the non-metallic guide belt on the steel curved track. During the sliding process, the movable cover assembly and the non-metallic guide belt are always in a conductive connection state through the conductive insert. As long as the needle clothing on the movable cover is connected with the needle clothing on the cylinder, the automatic alarm circuit can be connected at the moment when the needle clothing on the movable cover touches the needle clothing on the cylinder, so that the carding machine automatically alarms and stops at the moment when the needle clothing on the movable cover and the needle clothing on the cylinder touch.

[0007] However, this embedded carbon graphite solution still has the following problems: ① During the carding process, some movable flats may have been connected to the needles, but the movable flats and the curved rails are not electrically conductive and adjusted in time, which will cause damage to the movable flats clothing and the cylinder clothing; ②The conductive effect may not be very ideal; ③ Because the movable cover unit is in contact with the conductive nylon guide belt for a long time, it is very easy to cause wear of the guide belt; ④The production process is relatively complicated. Summary of the invention

[0008] The purpose of the present invention is to provide a continuous conductive curved track guide belt device for a cotton carding machine needle connection alarm, which can provide a more stable and reliable conductive function at the moment when the movable cover plate needle clothing and the cylinder needle clothing are connected, ensuring that the cotton carding machine automatically alarms and stops.

[0009] The technical solution adopted by the present invention is: A continuous conductive curved rail and belt guide device for a cotton carding machine needle alarm comprises a curved rail and a guide belt. The guide belt is a wear-resistant conductive belt which is installed on the outer contact surface of the curved rail in an inlaid manner.

[0010] Furthermore, the wear-resistant conductive belt includes a nylon base layer and a carbon fiber conductive layer, the carbon fiber conductive layer is composited on the nylon base layer, the carbon fiber conductive layer is a uniformly distributed composite of nylon and carbon fiber, and there is at least one conductive column between the carbon fiber conductive layer and the curved rail.

[0011] Furthermore, the warp threads of the carbon fibers in the carbon fiber conductive layer are continuously and evenly distributed on the outer surface of the nylon base material layer along the length direction of the conductive tape.

[0012] Further, the warp threads of the carbon fibers in the carbon fiber conductive layer are continuously and uniformly distributed on the outer surface of the nylon base material layer along the width direction of the conductive tape.

[0013] Furthermore, the thickness of the carbon fiber conductive layer is 0.5 to 5 mm.

[0014] Furthermore, grooves are provided at intervals on the outer side of the carbon fiber conductive layer along the width direction of the conductive tape to reduce the friction area.

[0015] Furthermore, the conductive pillar is a metal wire.

[0016] Furthermore, the conductive column and the carbon fiber conductive layer are an integrated homogeneous body.

[0017] As a special example of the present invention, the wear-resistant conductive belts are all carbon fiber conductive layers 22 .

[0018] The wear-resistant conductive belt of the present invention adopts a composite material of nylon and carbon fiber, wherein the conductive material is carbon fiber. Since carbon fiber has high rigidity, the composite material can have higher modulus and rigidity.

[0019] The present invention directly designs the guide belt of the carding machine as a wear-resistant conductive belt structure of carbon fiber and nylon composite that can continuously conduct electricity. It has both good wear resistance and conductivity, and can ideally meet the working conditions of the metal detection device for the alarm of the spacing needle connection between the movable cover card clothing and the cylinder card clothing on the carding machine. The technical difficulties in this field are solved. Since the carbon fiber can not only conduct electricity but also play a wear-resistant role, the strength will also be greatly improved, which increases the service life of the conductive nylon guide belt.

[0020] Since the wear-resistant conductive belt can conduct electricity, when the movable flat plate clothing and the cylinder clothing are connected, the movable flat plate adjustment device can be adjusted in a very short time. Compared with the prior art, the present invention makes production more convenient and simple, and the wear resistance, conductivity, service life and reliability are all guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the end structure of the movable cover plate and cylinder in the carding machine when they are in working state; Figure 2It is a schematic diagram of the axial cross-section structure of the existing curved track guide belt component; Figure 3 It is an enlarged cross-sectional view of the working principle of the curved track component, in which a schematic diagram of the structure of the movable cover plate when the guide belt slides along the outer arc surface of the curved track; Figure 4 It is a structural schematic diagram of the present invention.

[0022] In the figure: 1-curved track; 2-conducting belt; 21-nylon substrate layer; 22-carbon fiber conductive layer; 23-groove; 3- rack; 4- gear; 5- movable cover plate; 6- cylinder; 7- round wall plate; 8- conductive column. DETAILED DESCRIPTION

[0023] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0024] Embodiment 1: A continuous conductive curved track belt guide device for a cotton carding machine needle alarm, such as Figure 4 As shown, it includes a curved rail 1 and a conductive belt 2, the conductive belt 2 is a wear-resistant conductive belt, and the wear-resistant conductive belt is installed on the outer contact surface of the curved rail 1 in an embedded manner. The wear-resistant conductive belt includes a nylon base material layer 21 and a carbon fiber conductive layer 22, the carbon fiber conductive layer 22 is composited on the nylon base material layer 21, the carbon fiber conductive layer 22 is a uniformly distributed composite of nylon and carbon fiber, and there are three conductive columns 8 between the carbon fiber conductive layer 22 and the curved rail 1, and the conductive columns 8 are metal wires.

[0025] In this example, the warp of the carbon fibers in the carbon fiber conductive layer 22 is continuously and evenly distributed on the outer surface of the nylon base material layer 21 along the length direction of the guide belt 2, and the thickness of the carbon fiber conductive layer 22 is 0.5-5 mm.

[0026] Grooves 23 are provided on the outer side of the carbon fiber conductive layer 22 at intervals along the width direction of the conductive tape 2 to reduce the friction area.

[0027] Embodiment 2: The difference from Embodiment 1 is that the conductive column 8 and the carbon fiber conductive layer 22 are an integrated homogeneous body.

[0028] Embodiment 3: As a special example of Embodiment 1, the wear-resistant conductive belts are all carbon fiber conductive layers 22 .

Claims

1. A continuous conductive curved track and belt guide device for a cotton carding machine needle alarm, comprising a curved track (1) and a guide belt (2), characterized in that: The conductive belt (2) is a wear-resistant conductive belt, which is installed on the outer contact surface of the curved rail (1) in an embedded manner.

2. A continuous conductive curved track belt guide device for a cotton carding machine needle connection alarm according to claim 1, characterized in that: The wear-resistant conductive belt comprises a nylon base material layer (21) and a carbon fiber conductive layer (22), wherein the carbon fiber conductive layer (22) is composited on the nylon base material layer (21), the carbon fiber conductive layer (22) is a uniformly distributed composite of nylon and carbon fiber, and at least one conductive column (8) is provided between the carbon fiber conductive layer (22) and the curved rail (1).

3. A continuous conductive curved track belt guide device for a cotton carding machine needle connection alarm according to claim 2, characterized in that: The warp threads of the carbon fibers in the carbon fiber conductive layer (22) are continuously and evenly distributed on the outer surface of the nylon base material layer (21) along the length direction of the conductive tape (2).

4. A continuous conductive curved track belt guide device for a cotton carding machine needle connection alarm according to claim 2, characterized in that: The warp threads of the carbon fibers in the carbon fiber conductive layer (22) are continuously and evenly distributed on the outer surface of the nylon base material layer (21) along the width direction of the conductive tape (2).

5. A continuous conductive curved track belt guide device for a cotton carding machine needle connection alarm according to claim 2, characterized in that: The thickness of the carbon fiber conductive layer (22) is 0.5-5 mm.

6. A continuous conductive curved track belt guide device for a cotton carding machine needle connection alarm according to claim 2, characterized in that: Grooves (23) are provided at intervals on the outer side of the carbon fiber conductive layer (22) along the width direction of the conductive tape (2) to reduce the friction area.

7. A continuous conductive curved track belt guide device for a cotton carding machine needle connection alarm according to claim 2, characterized in that: The conductive column (8) is a metal wire.

8. A continuous conductive curved track belt guide device for a cotton carding machine needle connection alarm according to claim 2, characterized in that: The conductive column (8) and the carbon fiber conductive layer (22) are an integrated homogeneous body.

9. A continuous conductive curved track belt guide device for a cotton carding machine needle connection alarm according to claim 1, characterized in that: The wear-resistant conductive belts are all carbon fiber conductive layers (22).

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