Wet non-woven fabric fracture alarm device

Abstract

The utility model discloses a wet process non-woven fabric fracture alarm device, which comprises a spunlace assembly, a rolling assembly, a dryer and a controller which are sequentially arranged from left to right, the spunlace assembly comprises a spunlace head and a web curtain mechanism, the spunlace head is arranged above a web conveying curtain, and a stripping roller for stripping non-woven fabric is arranged on the right side of the web conveying curtain; a photoelectric switch detection assembly is arranged over a feeding port of the dryer, a telescopic assembly is arranged on the top of the spunlace head, and the controller is in signal connection with the web curtain mechanism, the telescopic assembly and the photoelectric switch detection assembly. When entanglement substances appear on the non-woven fabric or slurry balls and the spunlace head are blocked, the damage of the non-woven fabric can be found, and the situation that unqualified products are produced and the yield of the products is influenced is avoided; and meanwhile, the blockage condition can be handled, and the production cost increase caused by shutdown due to damage aggravation is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to non - woven fabric continuous production technical field especially a kind of device for wet non - woven fabric breaking alarm applied in wet non - woven fabric continuous production process. BACKGROUND

[0002] Wet spunlace non - woven fabric is mainly raw material with wood pulp fiber, and then it is compounded with other fibers. At present, the fiber raw material used in the production of non-woven fabric is mixed and stirred with the long fiber in the wood pulp suspension, which is easy to entangle. By trying to replace raw materials from different manufacturers, but there are still long fibers in the fiber raw material, which cannot avoid the entanglement caused by long fibers from the root. The ingredients must be fully stirred and mixed evenly to make the produced non-woven fabric uniform and qualified, without obvious quality deviation.

[0003] Some unqualified products are recycled to increase the production rate of products, which need to be dispersed into single fibers for use. The unqualified products have been hydroentangled, and the fibers have been entangled. The stirring time and stirring intensity will be greatly increased during the second hydraulic dispersion. The entanglement between fibers is intensified, and it is more likely to entangle and form large entangled materials.

[0004] The production is adjusted according to customer requirements. The non-woven fabric needs to be edge treated to narrow the width of the non-woven fabric, and the excess edge material is cut off. The cut edge material is stripped by stripping roller and falls into the recycling tank for recycling. If the non-woven fabric cut by the stripping roller cannot be transferred in time, it will accumulate into a pulp mass and fall into the spunlace screen.

[0005] These entangled materials or pulp masses are transferred into the spunlace by the spunlace screen. Since the volume of the entangled materials or pulp masses is large, it is difficult to pass through the gap between the spunlace head and the screen, and it is directly blocked on one side of the screen in the direction of the incoming material. At the same time, due to the dehydration effect of the vacuum dehydration tank directly below the spunlace head on the non-woven fabric, the entangled materials or pulp masses are tightly adsorbed on the screen, causing the non-woven fabric sent by the screen to be blocked at this position and continuously accumulate and expand, directly forming a hole in the non-woven fabric, affecting the production rate of the non-woven fabric. Moreover, due to the visibility of the production site and the unpredictability of the appearance of the entangled materials or pulp masses, the abnormality of the non-woven fabric cannot be discovered and processed in time, and the spunlace head blockage problem cannot be solved. The damage to the non-woven fabric will continue to expand until the non-woven fabric is completely broken, causing the production to restart, wasting materials, and unable to produce continuously. At the same time, the blockage condition is aggravated and even the screen is damaged, which shortens the service life of the screen, increases the cost of replacing the screen, and the damaged screen also causes quality risks to the non-woven fabric. SUMMARY

[0006] The utility model aims at providing a kind of device of wet nonwoven fabric rupture alarm, when entanglement or pulp mass and hydroentanglement head are blocked on nonwoven fabric, the breaking of nonwoven fabric can be found, avoid producing unqualified product, affect the finished product rate of product;It can handle the jam situation, avoid the damage to aggravate and cause parking, bring the increase of production cost.

[0007] In order to realize the above-mentioned application purpose, the technical scheme of the utility model is as follows:

[0008] A kind of device of wet nonwoven fabric rupture alarm, including hydroentanglement component, rolling component and dryer from left to right in turn, the hydroentanglement component includes hydroentanglement head and screen mechanism, the hydroentanglement head is arranged above screen mechanism, the right side of screen mechanism is provided with stripping roller for stripping nonwoven fabric, stripping roller and screen mechanism gap fit, rolling component is arranged in the right side of stripping roller;The light-dependent resistor detection component is arranged above the feed inlet of the dryer, the hydroentanglement head top is provided with telescopic component, the device of wet nonwoven fabric rupture alarm further includes controller, controller is connected with screen mechanism, telescopic component and light-dependent resistor detection component signal respectively.

[0009] The screen mechanism includes net screen and tension power supply, the net screen is annular structure, the tension unit includes driving roller and multiple driven rollers, the net screen is tensioned by driving roller and driven roller, the driving roller is drivingly connected with driving motor, and the driving motor is signal-connected with the controller.

[0010] The light-dependent resistor detection component includes light-dependent resistor and support, and the light-dependent resistor is connected with the top of the side of the dryer through the support;The number of light-dependent resistor detection switch is same as the number of hydroentanglement head, and one light-dependent resistor is arranged at the corresponding position on the right side of one hydroentanglement head.

[0011] The telescopic component includes air cylinder, the telescopic rod of the air cylinder is fixedly connected with the top of the hydroentanglement head, the top of the air cylinder is provided with upper air inlet, the bottom of the air cylinder is provided with lower air inlet, the upper air inlet and the lower air inlet are respectively provided with electromagnetic valve, and the electromagnetic valves are respectively electrically connected with the controller.

[0012] The screen mechanism is further provided with vacuum dehydration tank, the vacuum dehydration tank is arranged below the hydroentanglement head, the net screen is located between the vacuum dehydration tank and the hydroentanglement head, the water needle emitted by the hydroentanglement head penetrates the nonwoven fabric, penetrates the net screen and enters the vacuum dehydration tank directly below the hydroentanglement head.

[0013] The rolling component includes a pair of rolling rollers, and the rolling rollers are oppositely arranged;Nonwoven fabric is transmitted from the middle of the rolling roller and enters the inside of the dryer.

[0014] The rolling component and the dryer are provided with a guide roller, and the nonwoven fabric is sent into the inside of the dryer through the guide roller after being transmitted from the rolling component.

[0015] The utility model discloses the beneficial effect:

[0016] 1. In the utility model, the broken cloth alarm device monitors the condition of non - woven fabric in production, can trigger alarm device once non - woven fabric appears abnormal breakage, avoids the production of non - woven fabric unqualified product, influences the finished product rate of product;

[0017] 2. The broken cloth alarm signal transmission control water jet head lifts and lets the entanglement or pulp pass through the water jet head, avoids non - woven fabric breakage expansion, causes the parking to increase the cost of production.

[0018] 3. The broken cloth alarm signal transmission control net curtain assembly's drive device carries out the deceleration, reduces the amount of non - woven fabric that net curtain assembly transports, avoids the intensification of jam situation, produces the irreversible damage to the net curtain.

[0019] 4. In the utility model, the device structure is simple, can monitor non - woven fabric running condition in continuous production, realizes automatic control, avoids the problem of not in time of artificial treatment. DRAWINGS

[0020] Figure 1 It is the device structure schematic diagram of the wet process non - woven fabric breakage alarm of the utility model.

[0021] Figure 2 It is the telescopic subassembly structure schematic diagram of the utility model.

[0022] Among them, 1, water jet assembly;2, roll -in assembly;3, dryer;4, stripping roller;5, cloth guide roller;6, photoelectric switch detection subassembly;11, water jet head;12, net curtain mechanism;13, telescopic subassembly;14, net curtain;15, tension unit;16, driving roller;17, driven roller;18, vacuum dehydration tank;131, air cylinder;132, upper inlet;133, lower inlet;134, electromagnetic valve. SPECIFIC IMPLEMENTATION

[0023] The utility model will be further explained in detail in combination with examples, but the implementation mode of the utility model is not limited to this.

[0024] Example 1

[0025] This embodiment provides a kind of as Figure 1The device for breaking alarm of wet non-woven fabric shown in the application comprises a water jetting assembly 1, a rolling assembly 2 and a dryer 3 arranged from left to right in sequence, the water jetting assembly 1 comprises a water jetting head 11 and a screen mechanism 12, the water jetting head 11 is arranged above the screen mechanism 12, a stripping roller 4 for stripping the non-woven fabric is arranged on the right side of the screen mechanism 12, the stripping roller 4 is in clearance fit with the screen mechanism 12, and the rolling assembly is arranged on the right side of the stripping roller; a photoelectric switch detection assembly 6 is arranged above the feeding port of the dryer 3, the water jetting head 11 is provided with an extension assembly 13 at the top, and the device for breaking alarm of wet non-woven fabric further comprises a controller, which is signal connected with the screen mechanism 12, the extension assembly 13 and the photoelectric detection switch assembly respectively.

[0026] In the embodiment, the controller adopts RXM2LB2BD 8-pin 5A DC24V controller.

[0027] In the embodiment, during production operation, the screen mechanism 12 continuously rotates to feed the compounded non-woven fabric into the water jetting head 11 below for water jetting, after the non-woven fabric is water jetted, the non-woven fabric is continuously taken out by the screen mechanism 12 to the position of the stripping roller 4, the stripping roller 4 strips the non-woven fabric from the screen assembly, the non-woven fabric enters the pressing assembly for pressing, and after the pressing, the non-woven fabric enters the dryer 3 for drying, the photoelectric switch detects the vertical distance from the non-woven fabric below through the detection assembly, so as to detect whether the non-woven fabric is damaged or broken,

[0028] When the photoelectric switch detection assembly 6 detects that the vertical distance is greater than the actual distance, that is, the non-woven fabric is damaged or broken, the controller controls the extension assembly 13 to retract according to the signal of the photoelectric switch detection assembly 6, so that the water jetting head 11 is lifted to allow the entanglement or pulp to pass through the position of the water jetting head 11, after the entanglement or pulp passes through, the non-woven fabric is no longer damaged or broken, after the photoelectric switch detection assembly 6 detects that the vertical distance returns to normal, the controller controls the extension assembly 13 to extend, and the water jetting head 11 is lowered to continue water jetting.

[0029] Embodiment 2

[0030] Compared with the embodiment 1, the difference between the embodiment and the embodiment 1 lies in that, in the embodiment, the screen mechanism 12 comprises a screen conveying mechanism 14 and a tensioning unit 15, the screen conveying mechanism 14 is in ring structure, the tensioning unit 15 comprises a driving roller 16 and a plurality of driven rollers 17, the screen conveying mechanism 14 is tensioned through the driving roller 16 and the driven rollers 17, the driving roller 16 is drivingly connected with a driving motor, and the driving motor is signal connected with the controller; the rest structures are the same as those of the embodiment 1.

[0031] In the embodiment, the driving motor adopts R137 DRN225S4 / V speed reducer.

[0032] In this embodiment, the inner layer of the mesh curtain 14 is tightly attached to the multiple driven rollers and the main transmission roller. When the drive motor in the mesh curtain 14, which is connected to the main transmission roller, is started, the mesh curtain in close contact with the main transmission roller is driven, and the non-woven fabric spread on the mesh curtain is continuously delivered to the position directly below the hydroentanglement head 11.

[0033] When the photoelectric switch detection component 6 detects that the vertical distance is greater than the actual distance, the controller controls the drive motor to decelerate the active roller 16, and the speed of the mesh curtain 14 is gradually reduced, the feeding is reduced, and the accumulation of entanglements or pulp agglomerates in the hydroentanglement head 11 is reduced, making it easier for the entanglements and pulp agglomerates to pass through the hydroentanglement head 11;

[0034] When the vertical distance detected by the photoelectric switch detection component 6 returns to normal, the controller controls the drive motor to accelerate and operate normally.

[0035] Example 3

[0036] The difference between this embodiment and Example 1 is that, in this embodiment, the photoelectric switch detection component 6 includes a photoelectric switch and a bracket, and the photoelectric switch is connected to the top side of the dryer 3 through the bracket; the number of photoelectric detection switches is the same as the number of water jet heads 11, and one photoelectric switch is set at the corresponding position on the right side of one water jet head 11; the rest of the structure is the same as that of Example 1.

[0037] In this embodiment, the photoelectric switch adopts Omron E3JK-DR12-C, 24V.

[0038] In this embodiment, the number of photoelectric detection switches is the same as the number of water jet heads 11. The photoelectric switches are arranged at corresponding positions on the right side of the water jet heads 11. When a photoelectric detection switch detects an abnormal vertical distance, the water jet head 11 at the corresponding position can be lifted.

[0039] Example 4

[0040] The difference between this embodiment and embodiment 1 is that, in this embodiment, Figure 2 As shown, the telescopic assembly 13 includes a cylinder 131, the telescopic rod of the cylinder 131 is fixedly connected to the top of the water jet head 11, the top of the cylinder 131 is provided with an upper air inlet 132, and the bottom of the cylinder 131 is provided with a lower air inlet 133. The upper air inlet 132 and the lower air inlet 133 are respectively provided with solenoid valves 134, and the solenoid valves 134 are respectively electrically connected to the controller; the rest of the structure is the same as that of Example 1.

[0041] In this embodiment, the cylinder 131 is made of ACQJ100X50-20B.

[0042] The upper air inlet 132 of the cylinder 131 is communicated with the rodless cavity of the cylinder 131, and the lower air inlet 133 is communicated with the rod cavity of the cylinder 131; when the water jet head 11 needs to be lifted, the electromagnetic valve 134 of the lower air inlet 133 is opened to introduce compressed air into the rod cavity, the compressed air drives the piston of the cylinder 131 to act upward, so that the water jet head 11 is lifted; when the water jet head 11 needs to fall back, the electromagnetic valve 134 of the upper air inlet 132 is opened to introduce compressed air into the rodless cavity, the compressed air drives the piston of the cylinder 131 to act downward, so that the water jet head 11 falls back.

[0043] Embodiment 5

[0044] Compared with the embodiment 1, the difference of the embodiment is that the screen curtain mechanism 12 is further provided with a vacuum dehydration tank 18 in the embodiment, the vacuum dehydration tank 18 is arranged below the water jet head 11, the screen conveying curtain 14 is located between the vacuum dehydration tank 18 and the water jet head 11, the rolling assembly 2 comprises a pair of rolling rollers which are oppositely arranged, and the remaining structure is the same as that of the embodiment 1.

[0045] In the embodiment, the water needle emitted by the water jet head 11 penetrates the non-woven fabric, penetrates the screen conveying curtain 14 and enters the vacuum dehydration tank 18 which is directly below the water jet head 11; the non-woven fabric is transmitted from the middle part of the rolling roller and enters the inside of the dryer 3; after the non-woven fabric is transmitted from the rolling assembly 2, it is sent into the inside of the dryer 3 through the cloth guide roller 5.

[0046] It can be understood that the utility model is described through some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model.In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model.Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.

Claims

1. A device for alarming the breakage of wet-laid nonwoven fabrics, characterized by: The application relates to a wet-spun non-woven fabric production device, which comprises, from left to right, a water jet assembly (1), a rolling assembly (2) and a dryer (3), wherein the water jet assembly (1) comprises a water jet head (11) and a screen mechanism (12), the water jet head (11) is arranged above the screen mechanism (12), a stripping roller (4) for stripping non-woven fabric is arranged at the right side of the screen mechanism (12), the stripping roller (4) is in gap cooperation with the screen mechanism (12), and the rolling assembly is arranged at the right side of the stripping roller; a photoelectric switch detection assembly (6) is arranged above the feeding port of the dryer (3), a telescopic assembly (13) is arranged at the top of the water jet head (11), and the device for wet non-woven fabric breakage alarm is further provided with a controller, which is in signal connection with the screen mechanism (12), the telescopic assembly (13) and the photoelectric detection switch assembly.

2. The apparatus for detecting a break in a wet laid nonwoven fabric of claim 1, wherein: The screen mechanism (12) comprises a screen conveying mechanism (14) and a tensioning unit (15), the screen conveying mechanism (14) is in an annular structure, the tensioning unit (15) comprises a driving roller (16) and a plurality of driven rollers (17), the screen conveying mechanism (14) is tensioned through the driving roller (16) and the driven rollers (17), the driving roller (16) is in transmission connection with a driving motor, and the driving motor is in signal connection with the controller.

3. The device for alarming the breakage of wet-laid nonwoven fabric according to claim 1, characterized in that: The photoelectric switch detection assembly (6) comprises a photoelectric switch and a bracket, and the photoelectric switch is connected with the top of the side of the dryer (3) through the bracket.

4. The apparatus of claim 3, wherein: The number of photoelectric detection switches is the same as that of the water jet heads (11), and one photoelectric switch is arranged at a corresponding position at the right side of one water jet head (11).

5. The device for alarming the breakage of wet-laid nonwoven fabric according to claim 1, characterized in that: The telescopic assembly (13) comprises a gas cylinder (131), the telescopic rod of the gas cylinder (131) is fixedly connected with the top of the water jet head (11), an upper air inlet (132) is arranged at the top of the gas cylinder (131), a lower air inlet (133) is arranged at the bottom of the gas cylinder (131), the upper air inlet (132) and the lower air inlet (133) are respectively provided with electromagnetic valves (134), and the electromagnetic valves (134) are respectively in electric connection with the controller.

6. The apparatus of claim 2, wherein: the wet nonwoven fabric is a wet tissue paper. The screen mechanism (12) is further provided with a vacuum dehydration tank (18), the vacuum dehydration tank (18) is arranged below the water jet head (11), and the screen conveying mechanism (14) is located between the vacuum dehydration tank (18) and the water jet head (11).

7. The apparatus of claim 1, wherein: the wet nonwoven fabric is a wet tissue paper. The rolling assembly (2) comprises a pair of rolling rollers which are oppositely arranged.

8. The apparatus of claim 1, wherein: the wet nonwoven fabric is a wet tissue paper. A cloth guide roller (5) is arranged between the rolling assembly (2) and the dryer (3), and the non-woven fabric is sent into the inside of the dryer (3) through the cloth guide roller (5) after being transmitted out of the rolling assembly (2).

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