CN216889223U - One-way cloth strip unwinding equipment capable of automatically correcting deviation - Google Patents

Abstract

The utility model relates to a piece of unidirectional cloth strip unwinding equipment, which comprises a rack, wherein a plurality of independent coiled material unwinding devices are arranged on the rack, each coiled material unwinding device is correspondingly provided with a transverse displacement mechanism, the unwinding equipment releases a coiled material to obtain strips, each strip is correspondingly provided with an edge detection device, the transverse displacement mechanisms and the edge detection devices are both connected with a controller, each edge detection device sends corresponding strip edge position data to the controller, and when the controller judges that the strip edge position exceeds a set range, a movement instruction is sent to the corresponding transverse displacement mechanism to drive the strip to return to an initial position, so that the strip position is corrected; meanwhile, the independent unwinding equipment can be conveniently replaced when the coiled materials are exhausted or have flaws; the tension control module can avoid the position of the strip from deviating. The unidirectional cloth strip unwinding equipment provided by the utility model can effectively reduce the quality problem caused by strip deviation in the unidirectional cloth production process.

Description

One-way cloth strip unwinding equipment capable of automatically correcting deviation

Technical Field

The utility model relates to unwinding equipment for a one-way strip, in particular to strip unwinding equipment with a cooperative deviation rectifying system.

Background

In order to quickly disperse ballistic shock stress waves, most of high-performance bulletproof composite materials are in a structure form of non-woven cloth and are formed by cross compounding two or more layers of unidirectional cloth.

By unidirectional fabric is meant a textile fabric having in one direction (usually the warp direction, but also the weft direction unidirectional fabric) a large number of woven or untwisted rovings, and in the other direction no or only a small number of and usually fine yarns, the full strength of the fabric being in one direction.

The ultra-high molecular weight polyethylene material applied to the bulletproof field mainly has two forms, one is in a fiber form, and the other is in a strip form. The production process of the fiber unidirectional cloth mainly comprises the processes of filament spreading, surface treatment, gum dipping, drying and the like. The ultra-high molecular weight polyethylene strip has a two-dimensional physical form, is limited to the current production process level, is difficult to directly obtain wide (such as more than 1000mm width) strips suitable for bulletproof products, and needs to produce strip unidirectional cloth by splicing narrow strips.

For narrow-band splicing into wide unidirectional cloth, the traditional unreeling device is generally in a through shaft mode, and a slip shaft can be selected for increasing tension control. The advantages and disadvantages of the slip shaft are obvious, such as the advantages of simple device, small occupied space and capability of providing tension control to a certain degree; however, the method has certain disadvantages, such as independent tension of each coil cannot be independently controlled, feeding and discharging must be carried out in a whole batch, convenient material changing is not facilitated, all strip coils are placed on a through shaft, when a certain coil positioned in the middle is exhausted or quality problems occur, all coils must be unloaded, the material changing of the middle coil can be completed, and time and labor are wasted.

Further, it is difficult to adjust the position of the tape when the tape position is laterally shifted during the transfer. When the strips are displaced in the transverse direction, an excessive gap between adjacent strips or an overlap between strips may be caused, and both an excessive gap and an overlap between strips may adversely affect the unidirectional fabric. The processing method for the strip deviation mainly depends on correcting the transverse position of the coiled material on the unreeling device, however, the existing unreeling device mainly depends on manually finding and adjusting the position of the coiled material, so that effective deviation correction is difficult to achieve, and time and labor are wasted.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a unidirectional cloth strip unwinding device capable of automatically correcting deviation, which can realize the functions of independent material changing and real-time automatic deviation correction of strips.

Hereinafter, unless otherwise specified, "transverse" refers to the same direction as the width direction of the web or strip, and "longitudinal" refers to the same direction as the length direction of the strip.

The utility model provides an one-way cloth strip unwinding equipment that can automatic rectify, its characterized in that, includes the frame, coiled material unwinding device, lateral displacement mechanism, edge detection device and controller, be provided with n independent coiled material unwinding device in the frame, wherein n >1, be provided with the unreeling axle on the coiled material unwinding device, the unreeling axle is the inflatable shaft, coiled material unwinding device release coiled material obtains the strip, every coiled material unwinding device corresponds and is provided with lateral displacement mechanism, and every strip all corresponds and is provided with edge detection device, lateral displacement mechanism and edge detection device all link to each other with the controller.

The independent coiled material unwinding device can independently release coiled materials, the coiled materials can be conveniently replaced when a certain coiled material is exhausted or has quality problems, the replacement efficiency can be greatly improved compared with the traditional through shaft unwinding, and the independent coiled material unwinding device can independently set a transverse displacement mechanism and can adjust the position of a single coiled material, so that the position of a strip is adjusted, and the position correction of the strip in the unidirectional cloth is facilitated; because the transverse width of each strip is determined, after the initial position of each strip in the unidirectional fabric is adjusted, if the edge position of the strip is not changed in the process of traveling, the strip is not displaced transversely, therefore, each strip is correspondingly provided with an edge detection device, and the transverse displacement mechanism and the edge detection device are connected with a controller, the online monitoring of the edge position of the strip can be realized, the monitored data is sent to the controller, the controller judges whether the edge position of the strip is changed, when the edge position of a certain strip is changed, the controller can send an instruction to the corresponding transverse displacement mechanism, so that the strip returns to the set position, and the automatic deviation correction of the strip is realized; since the technical problem mentioned in the background of the utility model only occurs in unidirectional fabrics formed by splicing a plurality of strips, the number of the coil unwinding devices arranged on the machine frame is at least 2, i.e. n > 1.

The air expansion shaft can expand after the coiled material is installed, so that the coiled material is clamped, the coiled material is prevented from transversely vibrating or sliding in the working process of the coiled material unreeling device, and the strip released by the coiled material is prevented from transversely deviating.

Optionally, the frame is arranged into at least two layers, and the plurality of coiled material unwinding devices are arranged on each layer at intervals in a staggered manner.

If the coiled material unwinding device is arranged on the same axis, all parts of the coiled material unwinding device can mutually conflict with each other, and the edges of adjacent strips obtained by releasing cannot be tightly attached to each other. Set up coiled material unwinding device interval in different layers, can stagger coiled material unwinding device and arrange, avoid adjacent coiled material unwinding device to take place the position conflict, realize the inseparable laminating between the one-way cloth strip. In addition, the multi-layer vertical design of the upper layer and the lower layer facilitates observation of the unreeling condition and is more favorable for replacing the coil stock. The layers are not limited to an upper layer and a lower layer, and can be arranged in a front row and a rear row, and the purpose is to increase the operation space of the independent unreeling position and enlarge the adjustment range of the coiled material deviation correction. And the n coiled material unreeling devices can be alternately placed on the rack at intervals according to the quantity, the volume and the occupied space of the equipment.

Optionally, the edge detection device is a contactless detection device.

The non-contact monitoring device can avoid the influence of physical contact on the position of the strip.

Optionally, the non-contact detection device is one or more of a machine detection device, an ultrasonic detection device, a light detection device, or a structured light detection device.

Optionally, the transverse displacement mechanism comprises a sliding plate, the coiled material unwinding device is arranged on the sliding plate, a sliding rail and a deviation rectifying motor are arranged below the sliding plate, and the controller controls the deviation rectifying motor to drive the sliding plate to move on the sliding rail.

Optionally, the coiled material unwinding device further includes a tension control module.

The tension control module can automatically adjust the tension of the strips in the conveying process, maintain the stability of the stretching tension of each strip in the conveying process and play a role in avoiding the transverse deviation of the strips caused by the tension change in the conveying process.

Optionally, the tension control module includes a tension detection roller and a tension brake, the tension detection roller and the tension brake are connected to the controller, and the tension brake controls the resistance of the release strip of the coiled material unwinding device.

In the tension control module, a tension detection roller sends a detected tension value to a controller, and the controller sends an instruction to a tension brake to reduce the release resistance of the coiled material when judging that the tension applied to the strip is overlarge; when the controller judges that the tension applied to the strip is too small, the controller sends an instruction to the tension brake to increase the release resistance of the coiled material.

Optionally, the coiled material unwinding device further comprises a double-station automatic switching mechanism.

The double-station switching mechanism can quickly complete the coil material changing work when one coil material is exhausted or has quality problems, and plays the roles of saving the material changing time and improving the production efficiency.

Optionally, the double-station switching mechanism includes a switching frame, two or more coiled material releasing mechanisms disposed on the switching frame, a switching motor, and a supporting plate, wherein the switching frame and the switching motor are disposed on the supporting plate, and the switching motor drives the switching frame to rotate.

Has the advantages that:

the unwinding equipment for the unidirectional cloth strips is provided with a plurality of independent coiled material unwinding devices, and the transverse position of each strip can be monitored and timely adjusted by matching with the corresponding transverse displacement mechanism, the edge detection device and the controller, so that the defects of unidirectional cloth gaps or overlapping and the like caused by strip deviation are avoided; the independent unreeling device can be conveniently replaced when the coiled materials are exhausted or have flaws; the tension control module can avoid the position of the strip from deviating, and further avoid the defects of gaps or overlapping of the unidirectional cloth and the like.

In conclusion, the scheme provided by the utility model can effectively reduce the quality problem caused by the strip deviation in the production process of the unidirectional fabric. Besides the unidirectional cloth with strips spliced to be wide, the unreeling device can also be used for producing cloth with a certain width by splicing a plurality of strips and bundles of raw materials.

Drawings

FIG. 1 is a schematic view of the overall structure of the unwinding device for unidirectional fabric strips of the present invention

FIG. 2 is a side view of the unwinding apparatus for unidirectional fabric strips of the present invention

FIG. 3 is a front view of the unwinding apparatus for unidirectional fabric strips of the present invention

FIG. 4 is a schematic layout view of the unwinding apparatus for unidirectional fabric strips of the present invention

FIG. 5 is a front view of an alternative dual-station switching mechanism of the single direction tape unwinding apparatus of the present invention

FIG. 6 is a top view of an alternative dual-station switching mechanism for a single direction tape unwinding apparatus of the present invention

The reference numerals are explained below:

10. a frame; 11. a support rail; 20. a coiled material unwinding device; 21. unwinding the reel; 22. a coil stock; 23. a first unreeling shaft; 24. a second unreeling shaft; 25. switching the motors; 26. a support plate; 27. switching the turnplate; 30. a lateral displacement mechanism; 31. a slide plate; 32. a slide rail; 33. a deviation correcting motor; 40. a strip; 41. a strip edge; 50. unidirectional cloth; 60. an edge detection device; 70. a tension control module; 71. tension detection roller 72, transmission roller 73, tension brake

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be further clearly and completely described below by using texts and/or with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. In the interest of clarity and conciseness, not all features of an actual implementation are described in the specification.

It is also noted herein that elements and features depicted in one drawing or one embodiment of the utility model may be combined with elements and features depicted in one or more other drawings or embodiments to avoid obscuring the utility model with unnecessary detail, and that only device structures and/or processing steps germane to aspects consistent with the utility model are depicted in the drawings and description and representations and descriptions of components and processes not germane to the utility model that are known to those of ordinary skill in the art are omitted.

For convenience of description, unless otherwise specified, the tapes refer to narrow unidirectional fabric raw materials before splicing of tape-shaped films, bundle yarns, and the like, and the unidirectional fabric refers to wide unidirectional fabric which is spliced by the tapes and then subjected to further processing or not.

Example 1

This embodiment is about a one-way cloth strip unwinding equipment. As shown in fig. 1 to 3, fig. 1 is a schematic view of an overall structure of a unidirectional fabric tape unwinding apparatus described in the present embodiment, fig. 2 is a side view, fig. 3 is a front view thereof, and fig. 4 is a schematic view of arrangement of main components with a part of a secondary structure omitted.

The unidirectional cloth strip unwinding device shown in the embodiment comprises a rack 10, wherein 11 coiled material unwinding devices 20 are arranged on the rack 10, and each coiled material unwinding device 20 is correspondingly provided with a transverse displacement mechanism 30. Be provided with a plurality of support horizontal poles 11 in the frame 10, divide into 3 layers with frame 10, coiled material unwinding mechanism 20 in frame 10 places in the second floor according to (i) coiled material unwinding mechanism, No. two coiled material unwinding mechanism places in the first floor, No. three coiled material unwinding mechanism sets up in the third floor, No. four coiled material unwinding mechanism places in the order on second floor, analogize with this, set up whole coiled material unwinding mechanism intervals on the three-layer bracing piece, arrange like this and can avoid taking place the position conflict between the axle 21 of unreeling of adjacent coiled material unwinding device 20 and transverse displacement mechanism 30, thereby make the strip 40 that coiled material unwinding device 20 release obtained closely arrange to unidirectional cloth 50.

Each strip 40 is correspondingly provided with an edge detection device 60, the position of the edge detection device 60 is preferably arranged between the roll unwinding device 20 and the unidirectional fabric 50, the strip 40 at this position is in an independent state as shown in fig. 2, and the unidirectional fabric 50 on the same plane is not formed side by side, and the detection of the edge of the strip 40 at this position can avoid the interference of the adjacent strip on the edge detection, which is beneficial to improving the accuracy of the edge detection result.

The lateral displacement mechanism 30 and the edge detection device 60 are both connected to a controller, not shown. The edge detection device 60 is an infrared edge detection device, and detects the corresponding strip edge 41 once every 2 seconds, and sends the detection result to the controller. Wherein the time interval of detection is adaptively adjustable according to the speed of travel of the strip 40 and/or the position of the edge detection device 60; similarly, the adjustment frequency of the strip 40 can be simulated according to the end face neatness of the raw material coil or the gap variation range, so that the consistency of detection, prejudgment and execution can be continuously optimized, and the frequency can be automatically adjusted after the material travels for a certain distance and a certain time.

The unwinding shaft 21 of the coiled material unwinding device 20 is an inflatable shaft, and when the coiled material 22 is not placed on the coiled material unwinding device 20, the unwinding shaft 21 is in a loose state, so that the coiled material 22 can be conveniently loaded and unloaded; after the coiled material feeding is completed, the unreeling shaft 21 is ventilated, the air expansion shaft expands and tensions, the coiled material 22 is fixed on the unreeling shaft 21, the tension of the strip 40 caused by the slipping of the coiled material 22 is prevented from being uneven, and therefore the effect of preventing the position of the strip 40 from deviating is achieved.

Transverse displacement mechanism 30 includes slide 31, coiled material unwinding device 20 set up in on the slide 31, be provided with slide rail 32 and the motor 33 of rectifying under the slide, slide rail 32 sets up along the width direction of strip 40, and the steerable motor 33 of rectifying of controller drives slide 31 is in move on the slide rail 32. When the lateral displacement mechanism 30 receives an instruction from the controller, the deviation correcting motor 33 starts to operate, so as to drive the coiled material unwinding device 20 arranged on the sliding plate 31 to move along the sliding rail 32.

The unwinding device for the unidirectional cloth strip further comprises a tension control module 70, wherein the tension control module 70 comprises a tension detection roller 71, two transmission rollers 72 and a tension brake 73, the tension detection roller 71 and the tension brake 73 are connected with a controller, and the tension brake 73 controls the resistance of the coiled material unwinding device 20 to release the strip 40. The tension detection rollers 71 and the two adjacent transmission rollers 72 are arranged between the coil unreeling device 20 and the edge detection device 60, so that the tension of the strip 40 can be adjusted before the strip is corrected, and if the tension is adjusted after the correction is performed, the corrected strip 40 may deviate again due to the change of the tension. When the tension control module 70 works, the tension roller 71 feeds back the detected tension value to the controller, and the controller judges whether the tension applied to the strip meets the requirement. When the controller determines that the tension applied to the strap 40 is too high, it sends a command to the tension brake 73 to reduce the release resistance of the web 22; the controller determines that the tension on the strip 40 is too low and sends a command to the tension brake 73 to increase the release resistance of the web 22. The tension of each strip 40 adjusted by the tension control module 70 is stable during the transmission process, and the effect of avoiding the transverse deviation of the strip 40 caused by the tension change during the transmission process can be achieved.

The working process of the unidirectional cloth strip unwinding equipment is as follows:

first, a plurality of coils 22 are placed on the unwinding shaft 21, and the air-inflation switch is opened to fix the coils 22 to the unwinding shaft 21. And then the strips 40 released from the coiled material 22 sequentially penetrate through the transmission roller and the tension detection roller 71 according to the mode shown in fig. 2, finally all the penetrating paths of the strips 40 are converged on the same transmission roller to form the unidirectional fabric 50, and the strips 40 forming the unidirectional fabric 50 continue to penetrate through the subsequent processing equipment and reach the blanking equipment along the subsequent transmission roller. And starting the whole production line, and driving the strip 40 to advance along the preset direction by a driving roller in the subsequent equipment, so as to drive the coiled material unreeling equipment 20 to release the coiled material 22, thereby obtaining the strip 40 which advances towards the subsequent equipment.

After the web unwinding apparatus 20 starts unwinding, the strip 40 is released from the web 22 and passes through the tension detection roller 71 and the edge detection device 60 in sequence along the predetermined direction.

During the forward movement of the strip 40, the tension detection roller 71 continuously detects the tension applied to the strip 40, feeds the detected tension value back to the controller, and sends a command to the tension brake 73 to reduce the release resistance of the web 22 when the controller judges that the tension is excessive; when the controller determines that the tension is too low, it sends a command to the tension brake 73 to increase the release resistance of the web 22, thereby controlling the tension experienced by the strip 40 to stabilize.

The deviation rectifying process of the unwinding device for unidirectional cloth strips according to this embodiment is as follows (the "left" and "right" are described based on the relative position of fig. 3 in the following description):

in this embodiment, there are 11 rolls 22, and thus 11 strips 40, and 11 strips 40 are collected on the same transport roller to form a unidirectional fabric 50. When the unwinding apparatus is in stable operation and the position of each strip 40 in the unidirectional fabric 50 is properly adjusted, each edge detecting device 60 starts to operate, and the edge position of each strip 40 detected at this time is set as an initial position, and then each edge detecting device 60 measures the edge position of its corresponding strip 40 every 2 seconds, in this embodiment, the position variation of each strip 40 edge is required to be less than 0.5 mm. Since the tape 40 is usually pulled by a worker manually to be threaded on the transmission roller, the unidirectional fabric 50 just threaded usually has wrinkles, overlaps and the like, and the unidirectional fabric 50 can be regular and stable after the equipment is operated for a period of time, so that the device 60 needs to start to work again after the equipment is operated stably.

The unidirectional fabric after the equipment stably operates is shown in fig. 3, wherein 11 strips 40 in the figure are marked as N from left to right in sequence₁，N₂，……，N₁₁(ii) a The 11 edge detection devices 60 in the figure are labeled M from left to right in turn₁，M₂，……，M₁₁Let i be any number from 1 to 11. The edge detection device Mi detects the edge position of the corresponding strip Ni once every 4 seconds, and sends detected edge position data Xi to the controller, the controller judges the position data Xi obtained by Mi detection, and when the controller judges that the variation of the position data Xi is smaller than or equal to 0.5mm compared with the initial position, the controller does not send a movement instruction to the transverse displacement mechanism 30; when the controller judges that the position data Xi is shifted to the left by more than 0.5mm compared with the initial position, the controller sends a command of shifting to the right by 0.5mm to the transverse displacement mechanism 30 corresponding to the strip Ni; when the controller determines that the position data Xi is shifted to the right by 0.5mm or more from the initial position, it sends a command to move 0.5mm to the left to the lateral displacement mechanism 30 corresponding to the strip Ni. By the control method, the transverse offset of each strip 40 relative to the initial position can be ensured to be within 0.5mm, namely, the position of each strip 40 is ensured to be basically stable, so that the defects of large gaps or overlapping and the like among the strips 40 of the unidirectional fabric 50 are avoided.

Example 2

The unwinding device for unidirectional fabric strips in this embodiment has a structure substantially the same as that of embodiment 1, except that the roll unwinding device 20 in this embodiment further includes a double-station switching mechanism, where fig. 5 is a front view of the double-station switching mechanism, and fig. 6 is a top view of the double-station switching mechanism.

The double-station switching structure comprises a switching motor 25, a supporting plate 26, a switching turntable 27, a first unwinding shaft 23 and a second unwinding shaft 24 which are arranged on the switching turntable 27, the switching turntable 27 and the switching motor 25 are arranged on the supporting plate 26, the supporting plate 26 is arranged on a transverse displacement mechanism 30, the switching motor 25 can drive the switching turntable 27 to rotate, and the first unwinding shaft 23 and the second unwinding shaft 24 are both provided with corresponding tension brakes 73.

The working process of the coiled material unwinding device 20 is as follows:

in the initial state, the first unreeling shaft 23 is located at the running position, and the second unreeling shaft 24 is located at the ready position. When the first unreeling shaft 23 is operated, a worker loads or unloads the second unreeling shaft 24. When the coiled material on the first unreeling shaft 23 is exhausted or a quality problem occurs, the switching mechanism is started, the switching turntable 27 is driven by the switching motor 25 to rotate, the first unreeling shaft 23 and the second unreeling shaft 24 are interchanged, the second unreeling shaft 24 is moved to the running position, the coiled material on the second unreeling shaft 24 is connected with the strip 40 on the transmission shaft by a worker, and the strip is continuously released by the second unreeling shaft 24. At the same time, the first unreeling shaft 23 is moved to the preparation position, and the exhausted coil is removed by the worker to replace a new coil on the first unreeling shaft 23 on the preparation position.

The double-station switching mechanism arranged on the unidirectional cloth strip unreeling device can greatly reduce the labor intensity of workers, save the material changing time and improve the production efficiency.

Claims (7)

1. The utility model provides an one-way cloth strip unwinding equipment that can automatic rectify, its characterized in that, includes the frame, coiled material unwinding device, lateral displacement mechanism, edge detection device and controller, be provided with n independent coiled material unwinding device in the frame, wherein n >1, be provided with the unreeling axle on the coiled material unwinding device, the unreeling axle is the inflatable shaft, coiled material unwinding device release coiled material obtains the strip, every coiled material unwinding device corresponds and is provided with lateral displacement mechanism, and every strip all corresponds and is provided with edge detection device, lateral displacement mechanism and edge detection device all link to each other with the controller.

2. The automatic deviation rectifying one-way cloth strip unwinding device as claimed in claim 1, wherein the frame is arranged in at least two layers, and the n coiled material unwinding devices are arranged on each layer in a staggered manner at intervals.

3. The unwinding equipment of one-way cloth strips capable of automatically rectifying deviation as claimed in claim 1, wherein the edge detection device is a non-contact monitoring device.

4. The apparatus of claim 1, wherein the web unwinding device further comprises a tension control module.

5. The automatic deviation rectifying one-way cloth strip unwinding device as claimed in claim 1, wherein the coiled material unwinding device further comprises a double-station automatic switching mechanism.

6. The unwinding equipment of one-way cloth strips capable of automatically rectifying deviation as claimed in claim 4, wherein the tension control module comprises a tension detection roller and a tension brake, the tension detection roller and the tension brake are connected with the controller, and the tension brake controls the resistance of the web unwinding device to release the strips.

7. The automatic deviation rectifying one-way cloth strip unwinding device as claimed in claim 5, wherein the double-station switching mechanism comprises a switching frame, two or more coiled material releasing mechanisms arranged on the switching frame, a switching motor and a supporting plate, the switching frame and the switching motor are arranged on the supporting plate, and the switching motor drives the switching frame to rotate.

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