Rotary cutter control device for winding machine and non-woven fabric production line

Abstract

According to the rotary cutter control device for the winding machine and the non-woven fabric production line, when non-woven fabric needs to be cut off in the breadth direction, firstly, the air storage tank supplies compressed air to the rotary cutter and the air blowing pipe through the rotary cutter electromagnetic valve and the air blowing electromagnetic valve respectively, so that the rotary cutter rotates, and the air blowing pipe blows air outwards. And the air storage tank supplies compressed air to the linear air cylinder through the linear air cylinder electromagnetic valve, so that the linear air cylinder moves. The air blowing pipe blows air to the non-woven fabric, the linear air cylinder drives the rotary cutter to move in the breadth direction of the non-woven fabric, the rotary cutter conducts cutting in the rotating process, and therefore the non-woven fabric is cut off. Meanwhile, when the linear air cylinder acts, compressed air in the linear air cylinder can be exhausted through the quick exhaust valve and does not need to pass through an electromagnetic valve of the linear air cylinder, so that the path for exhausting the compressed air is shortened, the cutting speed of the rotary cutter can be effectively increased, the length of the broken end of the non-woven fabric is shortened, and the rejection rate of the non-woven fabric is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of non-woven fabric machinery, and in particular relates to a rotary cutter control device for a winding machine and a non-woven fabric production line. Background Art

[0002] The non-woven fabric production line is an equipment system specially used for producing non-woven fabrics. During the production process of non-woven fabrics, in order to facilitate the processing of the next step or to facilitate the packaging and transportation of the products, the semi-finished or finished non-woven fabrics produced continuously need to be wound up and wound into a large-diameter roll structure through a winder.

[0003] Winding machines typically wind nonwovens onto a reel, which is then pressed against a main winding roller by a pair of pressure cylinders. The reel rotates with the main winding roller due to friction. As the main winding roller rotates, the diameter of the nonwoven roll on the reel increases. When the diameter reaches the set value, the nonwoven is cut along the width, completing the reeling process. The cut end of the nonwoven is then wound onto a new reel, allowing the next roll to be reeled in, and the reeling process repeats.

[0004] In the prior art, nonwoven fabrics are cut along their width, often using a linear cylinder driving a rotary cutter and an auxiliary air blowing mechanism to wind the broken ends of the nonwoven fabric onto a new reel. This method suffers from the slow speed of the linear cylinder driving the rotary cutter, resulting in a long time to cut the nonwoven fabric, ultimately leading to excessively long broken ends and a significant increase in waste, severely impacting economic efficiency. Furthermore, other areas of the winder that utilize compressed air affect the pressure and flow of compressed air supplied to the linear cylinder, rotary cutter, and air blow pipe. This can lead to problems such as uneven shearing of the nonwoven fabric, inability to cut parts of the fabric, and the inability to wind the broken ends onto a new reel. Manual intervention is required to begin winding the next roll of nonwoven fabric, resulting in low winder efficiency and high labor intensity for operators.

[0005] Therefore, how to increase the cutting speed of the rotary cutter and thereby reduce the scrap rate of the nonwoven fabric is a problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0006] The purpose of the utility model is to provide a rotary cutter control device for a winder and a nonwoven fabric production line, which can effectively increase the cutting speed of the rotary cutter and reduce the waste rate of the nonwoven fabric.

[0007] In order to solve the above technical problems, the utility model provides a rotary cutter control device for a winder, comprising an air storage tank for storing compressed air, a rotary cutter solenoid valve, a linear cylinder solenoid valve, an air blowing solenoid valve, a rotary cutter, a linear cylinder and an air blowing pipe;

[0008] A quick exhaust valve is provided at the end of the linear cylinder, and the rotary cutter is provided at the movable end of the linear cylinder;

[0009] The air outlet of the air storage tank is respectively connected to the air inlets of the rotary cutter solenoid valve, the linear cylinder solenoid valve and the air blowing solenoid valve; the air outlet of the rotary cutter solenoid valve is connected to the rotary cutter; the air outlet of the linear cylinder solenoid valve is connected to the quick exhaust valve of the linear cylinder; and the air outlet of the air blowing solenoid valve is connected to the air blowing pipe.

[0010] Optionally, in the above-mentioned rotary cutter control device for the winder, a quick exhaust valve is provided at each end of the linear cylinder, and the air outlet of the linear cylinder solenoid valve is respectively connected to the two quick exhaust valves of the linear cylinder.

[0011] Optionally, in the above-mentioned rotary cutter control device for the winder, the air inlet of the air storage tank is connected to the external air source through a one-way valve.

[0012] Optionally, in the above-mentioned rotary cutter control device for the winder, the air inlet of the air storage tank is connected to the external air source through the compressed air switch valve and the one-way valve in sequence.

[0013] Optionally, in the above-mentioned rotary cutter control device for the winder, an air source triplex is connected between the compressed air switch valve and the one-way valve.

[0014] Optionally, in the above-mentioned rotary cutter control device for the winder, a T-shaped five-way connector is connected between the air source triplex and the one-way valve.

[0015] Optionally, in the above-mentioned rotary cutter control device for the winder, the compressed air switch valve is a manual sliding valve.

[0016] Optionally, in the above-mentioned rotary cutter control device for the winder, a T-shaped three-way connector is provided between the air blowing solenoid valve and the air blowing pipe, the air inlet of the T-shaped three-way connector is connected to the air blowing solenoid valve, and the other two air outlets are respectively connected to the two ends of the air blowing pipe.

[0017] Optionally, in the above-mentioned rotary cutter control device for the winder, a pressure gauge is provided on the gas storage tank.

[0018] The utility model also provides a nonwoven fabric production line, comprising a winder and the rotary cutter control device for the winder as described above.

[0019] The utility model provides a rotary cutter control device for a winder, which has the following beneficial effects:

[0020] When the nonwoven fabric needs to be cut across its width, compressed air is first supplied from the air tank to the rotary cutter and the air blow pipe through the rotary cutter solenoid valve and the air blow pipe, respectively, causing the rotary cutter to rotate and the air blow pipe to blow air outward. The air tank then supplies compressed air to the linear cylinder through the linear cylinder solenoid valve, causing the linear cylinder to move. The air blow pipe blows air onto the nonwoven fabric, and the linear cylinder drives the rotary cutter to move across the width of the nonwoven fabric. The rotary cutter cuts the nonwoven fabric as it rotates, completing the severing process. Simultaneously, when the linear cylinder is in motion, the compressed air within the linear cylinder is quickly discharged through a quick exhaust valve mounted at its end, bypassing the linear cylinder solenoid valve. This shortens the compressed air discharge path and increases the speed of the compressed air discharge. This in turn increases the linear cylinder's speed, shortening the nonwoven fabric cutting time, effectively increasing the rotary cutter's cutting speed and reducing the length of the nonwoven fabric ends. This reduces the scrap rate and improves the economic efficiency of the nonwoven fabric.

[0021] The present invention also provides a nonwoven fabric production line, comprising the above-mentioned rotary cutter control device for the winder, which has the same beneficial effects and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0023] Figure 1 A schematic structural diagram of a rotary cutter control device for a winder provided in an embodiment of the present invention;

[0024] Figure 2 A schematic diagram of the structure of a linear cylinder and a rotary cutter provided in an embodiment of the present utility model;

[0025] Figure 3 A schematic structural diagram of an air blowing pipe provided in an embodiment of the present utility model;

[0026] Figure 4 A schematic structural diagram of a gas storage tank provided in an embodiment of the present utility model;

[0027] Figure 5 This is a structural schematic diagram of the connection between the compressed air switch valve, air source triplex and T-type five-way connector provided in an embodiment of the present utility model.

[0028] In the above picture:

[0029] 100- linear cylinder; 110- first quick exhaust valve; 120- second quick exhaust valve;

[0030] 200-gas tank; 210-pressure gauge;

[0031] 300-Blowing tube;

[0032] 400-rotary cutter;

[0033] 510-air pipe; 520-compressed air switch valve; 530-air source triplex; 540-T-type five-way connector; 550-check valve; 560-rotary cutter solenoid valve; 570-linear cylinder solenoid valve; 580-air blowing solenoid valve; 590-T-type three-way connector. DETAILED DESCRIPTION

[0034] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0035] The core of the utility model is to provide a rotary cutter control device for a winding machine and a non-woven fabric production line, which can effectively increase the cutting speed of the rotary cutter and reduce the waste rate of the non-woven fabric.

[0036] In order to enable those skilled in the art to better understand the technical solution provided by the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] Specifically, please refer to Figure 1-Figure 5 The utility model provides a control device for a rotary cutter 400 for a winding machine, including an air storage tank 200, a rotary cutter solenoid valve 560, a linear cylinder solenoid valve 570, an air blowing solenoid valve 580, a rotary cutter 400, a linear cylinder 100 and an air blowing pipe 510.

[0038] The air storage tank 200 is used to store compressed air. The interior of the air storage tank 200 can withstand a certain pressure, and its shape can be adaptively designed according to actual needs.

[0039] A quick exhaust valve is provided at the end of the linear cylinder 100. The quick exhaust valve can be provided at one end or both ends of the linear cylinder 100. The linear cylinder 100 includes a linear guide rail and a slider / movable end slidably provided on the linear guide rail.

[0040] The rotary cutter 400 is disposed at the movable end of the linear cylinder 100 , and the linear cylinder 100 can drive the rotary cutter 400 to perform reciprocating motion on its linear guide rail.

[0041] The main function of the air blowing tube 510 is to maintain the tension of the nonwoven fabric roll to ensure the quality and performance of the produced nonwoven fabric.

[0042] The air outlet of the air tank 200 is connected to the air inlets of the rotary cutter solenoid valve 560, the linear cylinder solenoid valve 570, and the air blowing solenoid valve 580, respectively. The air outlet of the rotary cutter solenoid valve 560 is connected to the rotary cutter 400, the air outlet of the linear cylinder solenoid valve 570 is connected to the quick exhaust valve of the linear cylinder 100, and the air outlet of the air blowing solenoid valve 580 is connected to the air blowing pipe 510. Compressed air is supplied from the air tank 200 to the rotary cutter 400, the linear cylinder 100, and the air blowing pipe 510 through the rotary cutter solenoid valve 560, the linear cylinder solenoid valve 570, and the air blowing solenoid valve 580, respectively, to achieve rotation of the rotary cutter 400, movement of the linear cylinder 100, and outward blowing of air from the air blowing pipe 510.

[0043] Specifically, the gas tank 200 can be connected to the rotary cutter solenoid valve 560, the linear cylinder solenoid valve 570 and the blowing solenoid valve 580 through the air pipe 510, and can supply gas to the rotary cutter solenoid valve 560, the linear cylinder solenoid valve 570 and the blowing solenoid valve 580 respectively.

[0044] The relative positions of the rotary cutter solenoid valve 560, linear cylinder solenoid valve 570, and air blow solenoid valve 580 on the air pipe 510 are not unique and can be adaptively adjusted. The rotary cutter solenoid valve 560 is connected to the rotary cutter 400 via the air pipe 510 to drive the rotary cutter 400 to rotate. The linear cylinder solenoid valve 570 is connected to the quick exhaust valve of the linear cylinder 100 via the air pipe 510 to enable rapid exhaust of the linear cylinder 100.

[0045] The present invention provides a control device for a rotary cutter 400 for a winder. When a nonwoven fabric needs to be cut across its width, compressed air is first supplied from the air tank 200 to the rotary cutter 400 and the air blow pipe 510 via the rotary cutter solenoid valve 560 and the air blow pipe 510, respectively, causing the rotary cutter 400 to rotate and the air blow pipe 510 to blow air outward. The air tank 200 then supplies compressed air to the linear cylinder 100 via the linear cylinder solenoid valve 570, causing the linear cylinder 100 to move. The air blow pipe 510 blows air onto the nonwoven fabric, driving the rotary cutter 400 to move across its width. The rotary cutter 400 cuts the nonwoven fabric as it rotates, thus completing the nonwoven fabric severing process.

[0046] At the same time, when the linear cylinder 100 is in motion, the compressed air within it is rapidly exhausted through the quick exhaust valve mounted at the end of the linear cylinder 100, without having to pass through the linear cylinder solenoid valve 570. This shortens the exhaust path for the compressed air and increases the speed of the compressed air exhaust. This in turn increases the speed of the linear cylinder 100, shortening the cutting time of the nonwoven fabric, effectively increasing the cutting speed of the rotary cutter 400, shortening the length of the nonwoven fabric before breaking, reducing the scrap rate of the nonwoven fabric, and improving the economic benefits of the nonwoven fabric.

[0047] Furthermore, after the transverse cutting of the nonwoven fabric is completed, the rotary cutter solenoid valve 560 and the air blowing solenoid valve 580 stop supplying compressed air, and the linear cylinder solenoid valve 570 is reversely controlled to control the linear cylinder 100 to return to its initial position before cutting. The above process is repeated.

[0048] In a specific embodiment, a quick exhaust valve is provided at each end of the linear cylinder 100, namely, a first quick exhaust valve 110 and a second quick exhaust valve 120. The outlet of the linear cylinder solenoid valve 570 is connected to the two quick exhaust valves of the linear cylinder 100. That is, the linear cylinder solenoid valve 570 is connected to the first quick exhaust valve 110 and the second quick exhaust valve 120 of the linear cylinder 100 via the air pipe 510 to achieve rapid exhaust of the linear cylinder 100.

[0049] In a specific embodiment, the air inlet of the air tank 200 is connected to an external air source via a one-way valve 550. With the one-way valve 550 located upstream of the air tank 200, compressed air can only enter the air tank 200 through the one-way valve 550, and compressed air cannot flow back from the air tank 200 back into the one-way valve 550. This allows the compressed air stored in the air tank 200 to be independently supplied from the compressed air used in other parts of the winder, separating the two. The air tank 200 can only supply compressed air to the rotary cutter solenoid valve 560, the linear cylinder solenoid valve 570, and the air blowing solenoid valve 580, ensuring the pressure and flow of the compressed air.

[0050] Furthermore, the air inlet of the air storage tank 200 is connected to an external air source, which can be an air compressor, via a compressed air on / off valve 520 and a one-way valve 550. The compressed air on / off valve 520 can be a manual slide valve, which is used to control the opening and closing of the air source, enabling precise control of the air flow and thus precise control of the actuator. Using a manual slide valve to control the on / off of compressed air is convenient and fast.

[0051] In a specific embodiment, an air source triplex 530 is connected between the compressed air on / off valve 520 and the one-way valve 550. The air source triplex 530 is an air source processing device that primarily includes three components: an air filter, a pressure reducing valve, and an oil mist collector. These three components are assembled together to purify, filter, and reduce the pressure of the air source to the required air source pressure of the air storage tank 200.

[0052] A T-type five-way connector 540 is connected between the air source triplex 530 and the one-way valve 550. The upstream of the air tank 200 can be connected to the air compressor, the air source triplex 530, the T-type five-way connector 540, the one-way valve 550 and the air inlet of the air tank 200 in sequence through the air pipe 510.

[0053] In a specific embodiment, a T-shaped three-way connector 590 is disposed between the air blowing solenoid valve 580 and the air blowing tube 510. The air inlet of the T-shaped three-way connector 590 is connected to the air blowing solenoid valve 580, and the other two air outlets are connected to the two ends of the air blowing tube 510. Through the T-shaped three-way connector 590 disposed behind the air blowing solenoid valve 580, compressed air enters the air blowing tube 510 through both ends, increasing the compressed air flow rate. This ensures that the nonwoven fabric is cut neatly and that broken ends are more easily wound onto a new winding shaft, reducing the scrap rate of the nonwoven fabric and the labor intensity of the operator, thereby improving the efficiency of the winder.

[0054] The air inlet of the T-shaped five-way connector 540 is connected to the air outlet of the air source triplex 530. One of the air outlets of the T-shaped five-way connector 540 is connected to the air inlet of the one-way valve 550. The other three ports of the T-shaped five-way connector 540 can be adapted to supply compressed air to other components of the winder according to actual needs. Of course, other types of connectors can also be used to connect between the air source triplex 530 and the one-way valve 550.

[0055] In order to facilitate observation of the pressure value of the compressed air inside the gas storage tank 200 , a pressure gauge 210 is provided on the gas storage tank 200 .

[0056] In addition, the present invention also provides a nonwoven fabric production line, including a winder and a control device for the rotary cutter 400 for the winder as in the above specific embodiment.

[0057] Obviously, the nonwoven fabric production line including the above-mentioned control device for the rotary cutter 400 for the winder has the same beneficial effects, which will not be described in detail here.

[0058] In the description of this application, the meaning of "plurality" is more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0059] As used in this application and the claims, unless the context clearly indicates an exception, the terms "a," "an," "an," and / or "the" are not intended to refer to the singular and may include the plural, unless the context clearly indicates otherwise. Generally speaking, the terms "comprises" and "include" only indicate the inclusion of the steps and elements specifically identified, and these steps and elements do not constitute an exclusive list. A method or apparatus may also include other steps or elements. The phrase "comprises a..." does not preclude the presence of additional identical elements in the process, method, product, or apparatus that includes the elements.

[0060] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0061] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0062] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A rotary cutter control device for a winder, characterized in that: It includes an air storage tank for storing compressed air, a rotary cutter solenoid valve, a linear cylinder solenoid valve, an air blowing solenoid valve, a rotary cutter, a linear cylinder and an air blowing pipe; A quick exhaust valve is provided at the end of the linear cylinder, and the rotary cutter is provided at the movable end of the linear cylinder; The air outlet of the air storage tank is respectively connected to the air inlets of the rotary cutter solenoid valve, the linear cylinder solenoid valve and the air blowing solenoid valve; the air outlet of the rotary cutter solenoid valve is connected to the rotary cutter; the air outlet of the linear cylinder solenoid valve is connected to the quick exhaust valve of the linear cylinder; and the air outlet of the air blowing solenoid valve is connected to the air blowing pipe.

2. The rotary cutter control device for a winder according to claim 1, characterized in that: A quick exhaust valve is respectively provided at both ends of the linear cylinder, and the air outlet of the linear cylinder solenoid valve is respectively connected to the two quick exhaust valves of the linear cylinder.

3. The rotary cutter control device for a winder according to claim 1, characterized in that: The air inlet of the air storage tank is connected to an external air source through a one-way valve.

4. The rotary cutter control device for a winder according to claim 3, characterized in that: The air inlet of the air storage tank is connected to an external air source through a compressed air switch valve and the one-way valve in sequence.

5. The rotary cutter control device for a winder according to claim 4, characterized in that: An air source triplex is connected between the compressed air switch valve and the one-way valve.

6. The rotary cutter control device for a winder according to claim 5, characterized in that: A T-shaped five-way joint is connected between the air source triplex and the one-way valve.

7. The rotary cutter control device for a winder according to claim 4, characterized in that: The compressed air switch valve is a manual sliding valve.

8. The rotary cutter control device for a winder according to claim 1, wherein: A T-shaped three-way connector is provided between the air blowing solenoid valve and the air blowing pipe. The air inlet of the T-shaped three-way connector is connected to the air blowing solenoid valve, and the other two air outlets are respectively connected to the two ends of the air blowing pipe.

9. The rotary cutter control device for a winder according to claim 1, characterized in that: The gas storage tank is provided with a pressure gauge.

10. A nonwoven fabric production line, characterized in that: The invention comprises a winder and a rotary cutter control device for the winder according to any one of claims 1 to 9.

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