阅读说明：本技术 整体带芯经线并股均张力装置 (Integral belt core warp doubling uniform tension device ) 是由 陈学和 沈王平 陈春连 何承霞 倪伟 封国军 夏茂华 于 2020-12-30 设计创作，主要内容包括：本发明公开一种整体带芯经线并股均张力装置,包括穿线板、牵引辊、贮线缓冲器、压线钢球和并线牵引辊,其中,穿线板用于供涤纶长丝的线头穿过,穿线板的输出端与牵引辊的输入端位置相对应,长丝由牵引辊的输出端进入贮线缓冲器,由贮线缓冲器输出的长丝再经压线钢球后送入并线牵引辊进行牵引加捻。此种整体带芯经线并股均张力装置可减少长丝间张力差,提高经线并股后的强度。(The invention discloses an integral cored warp doubling uniform tension device which comprises a threading plate, a traction roller, a thread storage buffer, a thread pressing steel ball and a doubling traction roller, wherein the threading plate is used for enabling a thread end of a polyester filament to pass through, the output end of the threading plate corresponds to the input end of the traction roller in position, the filament enters the thread storage buffer from the output end of the traction roller, and the filament output by the thread storage buffer is sent into the doubling traction roller for traction and twisting after passing through the thread pressing steel ball. The integral core-equipped warp doubling uniform tension device can reduce tension difference between filaments and improve strength after warp doubling.)

1. The utility model provides an integral belt core warp doubling equal tension device which characterized in that: the threading plate is used for enabling the thread end of polyester filament to penetrate through, the output end of the threading plate corresponds to the input end of the traction roller, the filament enters the thread storage buffer from the output end of the traction roller, and the filament output by the thread storage buffer is sent into the doubling traction roller for traction and twisting after passing through the thread pressing steel ball.

2. The integral cored warp doubling equalizing tension device of claim 1, wherein: the wire storage buffer comprises a wire passing shaft, n fixed shafts, n micro gravity rollers, n upper limit switches and n lower limit switches, wherein n is a natural number; the yarn passing shaft is arranged at the input end of the yarn storage buffer and used for introducing polyester filaments drawn by the drawing roller; the n fixed shafts are arranged in sequence at intervals and are positioned on the same horizontal plane with the yarn passing shaft, and the miniature gravity roller is respectively arranged among the adjacent fixed shafts, the adjacent fixed shafts and the yarn passing shaft and is positioned below the fixed shafts and the yarn passing shaft; an upper limit switch and a lower limit switch are respectively arranged in the vertical moving direction of each micro gravity roller, the upper limit switch is positioned among the fixed shaft, the wire passing shaft and the micro gravity roller, and the lower limit switch is positioned between the micro gravity roller and the bottom surface of the wire storage buffer; the lower limit switch is used for controlling the action of the drawing roller, and the upper limit switch is used for controlling the action of the doubling drawing roller.

3. The integral cored warp doubling equalizing tension device of claim 2, wherein: the drawing roller comprises a first driving roller, a first driven roller, a first compression roller and a first coil, wherein the first driving roller and the first driven roller are arranged in parallel and are in transmission connection, the first compression roller is positioned in the middle of the upper portions of the first driving roller and the first driven roller, and polyester filaments pass through spaces below the first compression roller and above the first driving roller and the first driven roller; the center shaft of the first compression roller is connected with a first connecting rod, one end of the first connecting rod is fixed on the rack, the other end of the first connecting rod is connected with a first magnet, a first coil is wound on the first magnet and connected in a circuit, and a lower limit switch is arranged in the circuit.

4. The integral cored warp doubling equalizing tension device of claim 2, wherein: the doubling drawing roller comprises a second driving roller, a second driven roller, a second compression roller and a second coil, wherein the second driving roller and the second driven roller are arranged in parallel and are in transmission connection, the second compression roller is positioned in the middle of the upper parts of the second driving roller and the second driven roller, and polyester filaments pass through spaces below the second compression roller and above the second driving roller and the second driven roller; the center shaft of the second press roller is connected with a second connecting rod, one end of the second connecting rod is fixed on the rack, the other end of the second connecting rod is connected with a second magnet, a second coil is wound on the second magnet and connected in the circuit, and an upper limit switch is arranged in the circuit.

5. The integral cored warp doubling equalizing tension device of claim 1, wherein: the wire pressing steel ball comprises a steel ball and a ceramic support, wherein a groove is formed in the top surface of the ceramic support and used for containing the steel ball, and polyester filaments pass through the groove of the ceramic support.

6. The integral cored warp doubling equalizing tension device of claim 5, wherein: 70% of the diameter of the steel ball is positioned below the upper plane of the porcelain support.

Technical Field

The invention belongs to the technical field of production equipment of an integral conveying belt, and particularly relates to an integral belt core warp doubling and uniform tension device.

Background

The whole core flame-retardant conveyor belt is a new product which is originally created and put into practice by the company Fina in the UK in the nineties of the last century, and is introduced, digested, improved and implemented in 1992 in China, and is completely popularized at present. The conveying belt is suitable for conveying powdery and blocky coal among various working procedures and working sections of the underground coal mine, is convenient and quick, has high production efficiency, can meet domestic requirements, and also can be exported to markets such as Africa, south America, southeast Asia, and the like, and has the market capacity of nearly billions of dollars and huge potential.

The framework layer of the whole core flame-retardant conveyor belt is a whole belt core, the warp-wise material of the whole core flame-retardant conveyor belt is composed of more than 80% of polyester filament yarns and less than 20% of cotton yarns, and the weft-wise material of the whole core flame-retardant conveyor belt is composed of more than 60% of polyamide filament yarns and less than 40% of cotton yarns, and is woven by a multilayer loom. Due to the elongation, the warp polyester filaments almost bear the whole tension of the adhesive tape, and the cotton yarns mainly play a role in ensuring the adhesive force and the flex resistance of the adhesive tape.

It is generally believed that: when the strength of one filament is 100N, the strength of ten filaments after being plied is 1000N, but in the actual production process, the strength is often far less than 1000N, and only 70 percent of the theoretical number is not obtained. The difference between the actual strength and the theoretical strength is mainly caused by the tension inconsistency between each filament. Because the whole belt core cost accounts for 40-45% of the total cost of the whole core flame-retardant conveyor belt, the strength after stranding can be improved only by reducing the tension difference between filaments, the materials can be fully utilized, the cost is reduced to the maximum extent, and the market competitiveness is improved.

The standard of the polyester filament yarn is 1000d, 1500d and 2000d, the weight of a single roll is about 12.5Kg, the unit weight is 0.12g/m, 0.18g/m and 0.24g/m respectively, and the length is about 10.5 kilometers, 7 kilometers and 5.2 kilometers respectively. As shown in fig. 1, the conventional warp direction plying method is: the thread ends of the respective rolls of polyester filaments 10 are led out, passed through a threading plate 20, and then twisted in parallel.

The conventional doubling method has the following problems:

(1) because the polyester filament yarn is wound in a conical shape and is released in a winding shape, the filament yarn is swung and loosened in a spiral shape in the releasing process, so that the tension is tense and loose;

(2) because the polyester filament yarn is wound in a conical shape and each roll is long, after the wound filament yarn is gradually released, the diameter of a coil gradually becomes small, the swinging amplitude of the filament yarn becomes small, and the front tension and the rear tension of the filament yarn are different;

(3) because the polyester filament yarn coil is not uniform and constant in weight, after the polyester filament yarn coil is produced for a period of time, the yarn diameter is large or small, and the tension between the yarns is different;

(4) the fineness of the wire drawing openings of all machine tables of the polyester filament yarn is different in the wire drawing process of a raw material factory, so that the surface fluff of the filament yarn is different, and the filament yarn releasing resistance is different due to the fact that the fluff is mutually wound;

(5) the polyester filament yarn is wound in a conical shape, and due to long-term winding, the filament yarn is bent and suddenly released, and cannot be instantly restored to be in a straight shape, so that the filament yarn bounces and is different from front to back, and tension errors are caused.

Under the influence of the factors, the tension of the polyester filaments is different, so that the filaments cannot fully play the due role.

Based on the analysis, how to reduce the tension difference between the filaments and improve the strength after the warp doubling is a place needing improvement at present, and the scheme is generated.

Disclosure of Invention

The invention aims to provide an integral cored warp doubling uniform tension device which can reduce tension difference between filaments and improve strength after warp doubling.

In order to achieve the above purpose, the solution of the invention is:

the utility model provides an equal tension device of whole area core warp doubling, includes threading board, carry over pinch rolls, stores the line buffer, line ball and doubling carry over pinch rolls, and wherein, the threading board is used for supplying polyester filament's end of a thread to pass, and the output of threading board is corresponding with the input position of carry over pinch rolls, and the long filament gets into by the output of carry over pinch rolls and stores the line buffer, and the long filament of storing the output of line buffer is sent into the doubling carry over pinch rolls behind the line ball again and is pull the twisting.

The wire storage buffer comprises a wire passing shaft, n fixed shafts, n micro gravity rollers, n upper limit switches and n lower limit switches, wherein n is a natural number; the yarn passing shaft is arranged at the input end of the yarn storage buffer and used for introducing polyester filaments drawn by the drawing roller; the n fixed shafts are arranged in sequence at intervals and are positioned on the same horizontal plane with the yarn passing shaft, and the miniature gravity roller is respectively arranged among the adjacent fixed shafts, the adjacent fixed shafts and the yarn passing shaft and is positioned below the fixed shafts and the yarn passing shaft; an upper limit switch and a lower limit switch are respectively arranged in the vertical moving direction of each micro gravity roller, the upper limit switch is positioned among the fixed shaft, the wire passing shaft and the micro gravity roller, and the lower limit switch is positioned between the micro gravity roller and the bottom surface of the wire storage buffer; the lower limit switch is used for controlling the action of the drawing roller, and the upper limit switch is used for controlling the action of the doubling drawing roller.

The traction roller comprises a first driving roller, a first driven roller, a first compression roller and a first coil, wherein the first driving roller and the first driven roller are arranged in parallel and are in transmission connection, the first compression roller is positioned in the middle of the upper portions of the first driving roller and the first driven roller, and polyester filaments pass through spaces below the first compression roller and above the first driving roller and the first driven roller; the center shaft of the first compression roller is connected with a first connecting rod, one end of the first connecting rod is fixed on the rack, the other end of the first connecting rod is connected with a first magnet, a first coil is wound on the first magnet and connected in a circuit, and a lower limit switch is arranged in the circuit.

The doubling drawing roller comprises a second driving roller, a second driven roller, a second compression roller and a second coil, wherein the second driving roller and the second driven roller are arranged in parallel and are in transmission connection, the second compression roller is positioned in the middle of the upper parts of the second driving roller and the second driven roller, and polyester filaments pass through spaces below the second compression roller and above the second driving roller and the second driven roller; the center shaft of the second press roller is connected with a second connecting rod, one end of the second connecting rod is fixed on the rack, the other end of the second connecting rod is connected with a second magnet, a second coil is wound on the second magnet and connected in the circuit, and an upper limit switch is arranged in the circuit.

The wire pressing steel ball comprises a steel ball and a ceramic support, wherein a groove is formed in the top surface of the ceramic support and used for containing the steel ball, and polyester filaments pass through the groove of the ceramic support.

70% of the steel ball is positioned below the upper plane of the porcelain support.

By adopting the scheme, the tension between every two filaments and the tension between the front and the back of every two filaments can be ensured to be uniform, the tension uniformity of the polyester filaments is improved, the material utilization rate is improved, and the material consumption is reduced by 4.8-5% on the basis of the comparable cost. And due contribution is made to the improvement of the economic benefit of enterprises. According to 60 tons of polyester filament consumed per month and the unit price of 9000 yuan, more than 30 ten thousand yuan can be saved each year.

Drawings

FIG. 1 is a schematic diagram of a conventional warp direction doubling;

FIG. 2 is a schematic view of the overall structure of the present invention;

FIG. 3 is a schematic view of the construction of the pulling roll of the present invention;

FIG. 4 is a schematic diagram of the construction of a cord buffer according to the present invention;

FIG. 5 is a schematic structural diagram of a ball pressing ball according to the present invention;

FIG. 6 is a schematic view of the construction of the doubling draw roll of the present invention.

Detailed Description

The technical solution and the advantages of the present invention will be described in detail with reference to the accompanying drawings.

As shown in figure 2, the invention provides an integral cored warp doubling and uniform tension device, which comprises a threading plate 2, a traction roller 3, a thread storage buffer 4, a thread pressing steel ball 5 and a doubling traction roller 6, wherein the threading plate 2 is used for enabling the thread end of a polyester filament yarn 1 to pass through so as to achieve the purpose of carding; the output end of the threading plate 2 corresponds to the input end of the traction roller 3, the filaments enter the thread storage buffer 4 from the output end of the traction roller 3, and the filaments output by the thread storage buffer 4 are sent into the twisting machine for traction and twisting after passing through the thread pressing steel ball 5; described separately below.

As shown in fig. 3, the drawing roller 3 of the present invention is a schematic structural diagram, and includes a driving roller 31, a driven roller 32, a pressing roller 33 and a coil 34, wherein the driving roller 31 is connected with a motor, the driving roller 31 and the driven roller 32 are arranged in parallel and in transmission connection, and the pressing roller 33 is located in the middle of the upper portions of the driving roller 31 and the driven roller 32, so that the pressing roller 33, the driving roller 31 and the driven roller 32 form a regular triangle structure, and polyester filaments pass through the space below the pressing roller 33 and above the driving roller 31 and the driven roller 32; the central shaft of the compression roller 33 is connected with a connecting rod 35, one end of the connecting rod 35 is fixed on the frame, the other end is connected with a magnet, a coil 34 is wound on the magnet, the coil 34 is connected in a circuit, and a lower limit switch 45 is arranged in the circuit and is controlled by the action of the wire storage buffer 4; when the micro gravity roller 43 in the thread storage buffer 4 reaches the lower limit and touches the lower limit switch 45, the coil 34 is electrified to suck the connecting rod 35, the press roller 33 is suspended and does not run, and the traction of the monofilament is stopped.

As shown in fig. 4, the structure of the thread storing buffer 4 of the present invention is schematically illustrated, and the thread storing buffer includes a thread passing shaft 41, a plurality of fixing shafts 42, a plurality of micro gravity rollers 43, a plurality of upper limit switches 44, and a plurality of lower limit switches 45, wherein the thread passing shaft 41 is disposed at an input end of the thread storing buffer 4, and is used for introducing the polyester filaments drawn by the drawing roller 3; the plurality of fixing shafts 42 are arranged in sequence at intervals, are positioned on the same horizontal plane with the yarn passing shaft 41, and the number of the micro gravity rollers 43 is the same as that of the fixing shafts 42, are respectively arranged among the adjacent fixing shafts 42, the adjacent fixing shafts 42 and the yarn passing shaft 41 and are positioned below the fixing shafts 42 and the yarn passing shaft 41, so that the polyester filaments firstly pass through the adjacent micro gravity rollers 43 downwards from the yarn passing shaft 41, then pass through the first fixing shaft 42 upwards and then pass through the second micro gravity roller 43 downwards, and the sequence is carried out until the polyester filaments are led out from the last fixing shaft 42; an upper limit switch 44 and a lower limit switch 45 are respectively arranged in the vertical moving direction of each micro gravity roller 43, the upper limit switch 44 is positioned among the fixed shaft 42, the wire passing shaft 41 and the micro gravity roller 43, the lower limit switch 45 is positioned between the micro gravity roller 43 and the bottom surface of the wire storage buffer 4, and the specific position can be calculated according to the actual situation; the lower limit switch 45 is connected in the circuit of the coil 34, when the lower limit switch 45 is triggered, the circuit is closed, the coil 34 is electrified, so that the connecting rod 35 is sucked up, the pressing roller 33 is driven to be away from the driving roller 31 and the driven roller 32, and the traction of the filament is stopped, and the upper limit switch 44 is connected in the circuit of the coil 64 to control whether the coil 64 is electrified or not, which is described in detail later; the polyester filament yarn drawn out by the drawing roller 3 passes through the yarn passing shaft 41, the plurality of fixed shafts 42 and the miniature gravity roller 43, the miniature gravity roller 43 floats up and down in a limited space in the normal operation process, and when the lower limit switch 45 is touched, the coil 34 is electrified, so that the press roller 33 is suspended and does not operate, and the drawing of the filament yarn is stopped. When the micro gravity roller 43 reaches the upper limit and the upper limit switch 44 is touched, the coil 64 is electrified, so that the pressing roller 63 is suspended and does not run, and the traction of the polyester filament yarn is stopped. It should be noted that, in practical application, a plurality of upper limit switches 44 and a plurality of lower limit switches 45 are provided, the upper limit switches 44 are respectively matched with the micro gravity rollers 43 arranged above the upper limit switches, and the lower limit switches 45 are respectively matched with the micro gravity rollers 43 arranged below the lower limit switches, so that when any one micro gravity roller reaches the limit, the control of the press roller can be ensured.

As shown in fig. 5, the structural diagram of the wire pressing steel ball 5 of the present invention includes a steel ball 51 and a ceramic holder 52, wherein the top surface of the ceramic holder 52 is provided with a groove for accommodating the steel ball 51, and about 70% of the diameter of the steel ball 51 is located below the upper plane of the ceramic holder 52, and the polyester filaments pass through the groove of the ceramic holder 52, so that the steel ball 51 presses the polyester filaments to achieve a constant tension with a stable pressure.

As shown in fig. 6, the drawing roller 6 for doubling according to the present invention comprises a driving roller 61, a driven roller 62, a pressing roller 63 and a coil 64, wherein the driving roller 61 is connected with a motor, the driving roller 61 and the driven roller 62 are arranged in parallel and in transmission connection, the pressing roller 63 is located in the middle of the upper portions of the driving roller 61 and the driven roller 62, so that the pressing roller 63, the driving roller 61 and the driven roller 62 form a regular triangle structure, and polyester filaments pass through spaces below the pressing roller 63 and above the driving roller 61 and the driven roller 62; the central shaft of the compression roller 63 is connected with a connecting rod 65, one end of the connecting rod 65 is fixed on the frame, the other end is connected with a magnet, a coil 64 is wound on the magnet, the coil 64 is connected in a circuit, and an upper limit switch 44 is arranged in the circuit and is controlled by the action of the wire storage buffer 4; when the micro gravity roller 43 in the wire storage buffer 4 reaches the upper limit to touch the upper limit switch 44, the coil 64 is electrified to suck the connecting rod 65, the compression roller 63 is suspended and does not rotate, and the traction of the polyester filament yarn is stopped.

The working principle of the invention is as follows:

each polyester filament yarn 1 passes through a threading plate 2 and is drawn out by a traction roller 3 to enter a yarn storage buffer 4;

when the polyester filament yarn is positioned at the lower limit of the yarn storage buffer 4, the twisting machine operates normally;

when the micro gravity roller 43 in the thread storage buffer 4 descends to the lower limit switch 45, the traction roller 3 stops traction, and the polyester filaments are prevented from being accumulated to cause thread disorder;

when the polyester filament yarn is positioned at the upper limit of the yarn storage buffer 4 (when the polyester filament yarn touches the upper limit switch 44), the compression roller 63 of the doubling drawing roller 6 is lifted up by the upper limit switch 44 without drawing, the drawing roller 3 continues to operate, the micro gravity roller 43 in the yarn storage buffer 4 descends, and the compression roller 63 of the doubling drawing roller 6 is reset to operate.

Through the operation, after each polyester filament reaches the yarn storage buffer 4, no tension exists, and the tension difference caused by various reasons is eliminated.

The polyester filament yarn with the tension difference eliminated is characterized in that tension is applied to each filament yarn through a wire pressing steel ball 5 (the steel balls are weighed one by one on an analytical balance before being placed, and the error is not more than 0.01 g compared with the standard weight error), and then the yarn doubling and twisting are carried out according to the process requirements.

In this embodiment, the specification of the steel ball depends on the type of the polyester filament yarn, and a large steel ball is selected when the type is large (for example, 2000d polyester filament yarn is the largest steel ball); meanwhile, new materials can be used only after the previous materials are used up, polyester filaments of different types are prevented from being mixed, and the specification of the steel ball is determined according to the type of the polyester filaments. After each batch is used up, the steel balls are collected and properly stored to prevent corrosion, mixing and the like.

The tension error of each filament yarn of the polyester filament yarn passing through the device is small, the filament yarns can be simultaneously pulled after being doubled, the strength which is stronger than that of the original filament yarns is displayed, the effect of the polyester filament yarn is fully exerted, and the material utilization rate is improved.

When the device is used, purchased polyester filaments are placed on a material workbench according to types, the thread ends of the polyester filaments are led out, respectively pass through a threading plate, are drawn out by a traction roller and enter a thread storage buffer, the problem of uneven tension of the polyester filaments caused by various reasons is solved, each polyester filament respectively passes through a high-precision thread pressing steel ball, so that the polyester filaments generate constant tension with extremely small errors, and then are subjected to doubling and twisting. The invention improves the strength of the integral core-used polyester filament after stranding, reduces the manufacturing cost of the integral core flame-retardant conveyer belt and improves the economic benefit of enterprises.

The above embodiments are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modifications made on the basis of the technical scheme according to the technical idea of the present invention fall within the protection scope of the present invention.