Fabric cutting device for forming longitudinal edges of product fabric

Abstract

The present invention relates to a fabric cutting device for forming a longitudinal edge of a product fabric, which can continuously and automatically produce a product fabric formed with an edge perpendicular to the width direction or an edge at a predetermined angle of diagonal line by receiving a strip-shaped fabric having a predetermined width, and in particular, can provide a product fabric that can be easily set and adjusted to have a size and diagonal gradient at both ends that meets the needs of consumers without wasting fabric material. According to the present invention, a fabric cutting device for manufacturing a product fabric by cutting a fiber fabric of a predetermined size in a direction intersecting the width direction is provided, comprising: a device frame structure; an edge-forming cutting unit provided in the device frame structure and configured to cut in a direction intersecting the supply direction of the fiber fabric; a fiber fabric guide unit provided in the device frame structure and configured to guide the fiber fabric to the edge-forming cutting unit; and a control panel configured to control the operation of the fabric cutting device.

Description

Technology Field

[0001] The present invention relates to a fabric cutting device for forming a longitudinal edge of a product fabric, and more specifically, to a fabric cutting device for forming a longitudinal edge of a product fabric that can continuously and automatically produce a product fabric formed with an edge perpendicular to the width direction or an edge at a predetermined angle of diagonal line by receiving a strip-shaped fabric having a predetermined width, and in particular, can provide a product fabric that can be easily set and adjusted to have a size and diagonal gradient at both ends that meets the needs of consumers without wasting fabric material. Background Technology

[0003] Generally, textile fabrics are used in various fields. For example, conventional chemical fiber fabrics are provided by weaving a thermoplastic resin with excellent flexibility and adsorption properties, and then winding it into a uniform structured fabric with a specific area. Furthermore, when using such chemical fiber fabrics, they are cut to the required size according to the location and application.

[0004] When cutting such chemical fiber fabrics, it is common practice to cut using a mechanical cutter with a rotary blade or by using heat.

[0005] At this time, the matters to be considered during the cutting operation are that the tissue of the cut surface must not collapse and the cut surface must be cleanly treated.

[0006] However, in the case of rotary cutters compared to conventional mechanical cutters, the cutter blades become dull because the cutter itself rotates at high speed. This not only makes it difficult to ensure the accuracy of cutting non-woven fabric but also has the disadvantage of requiring periodic maintenance or replacement.

[0007] In addition, there was a problem where the cut portion of the mat fabric became uneven because the torque applied to the fabric by the rotational force of the rotary blade exceeded the standard value.

[0008] In particular, the vibration of the rotary blade caused lint or threads to form on the cut surface, resulting in an unclean cut or unraveling due to a lack of proper finishing, which caused a decrease in the product's value.

[0009] In addition, when cutting fabric using heat, the configuration involves simply pressing the moving fabric and applying heat, causing the fabric to stick and heat-melted residue to accumulate. Due to this phenomenon, the heating effect gradually decreases and frequent cleaning is required. Furthermore, the fabric becomes contaminated by the heat-melted residue, and the cutting surface may wrinkle or hardened areas may form at the edges due to the heat, making it difficult to use.

[0010] Therefore, such chemical fiber fabrics presented cumbersome handling issues that consumed unnecessary work time due to the need for cutting, and also caused persistent problems of high uneconomical use, such as wasting more material than necessary due to the generation of fabric scraps from the cutting process.

[0011] In particular, when cutting nanofiber fabrics or microfiber fabrics, the aforementioned problems are further exacerbated.

[0012] Meanwhile, as previously mentioned, the fabric is used for various purposes. When used as a cleaning pad product that is replaceably fitted to the head of a cleaning tool, it must be fitted to the shape of the cleaning tool's head. In this case, if the cleaning tool is trapezoidal, the fabric must be cut so that both ends are angled accordingly.

[0013] However, conventionally, when producing cleaning pads that fit cleaning tools, there is a problem in that the process of individually cutting both ends of the fabric diagonally is difficult and generates a large amount of waste. Prior art literature

[0015] Republic of Korea Registered Patent Publication 10-2348850 (Published Jan. 07, 2022) Republic of Korea Registered Utility Model Publication 20-0191083 (Published Aug. 16, 2000) Republic of Korea Registered Utility Model Publication 20-0253198 (Published May 06, 2002) Republic of Korea Registered Utility Model Publication 20-0394616 (Published Sep. 02, 2005) The problem to be solved

[0016] Accordingly, the present invention, which aims to solve the aforementioned conventional problems, is intended to provide a fabric cutting device for forming a longitudinal edge of a product fabric that can be produced by automating a series of processes, and can receive a strip-shaped fabric having a predetermined width and cut it to have an edge perpendicular to the width direction or an edge at a predetermined angle diagonal line when producing a cleaning fabric pad product suitable for a cleaning tool having, for example, a trapezoidal head part or a head part equipped with a fitting fixing part.

[0017] In addition, the present invention has another objective of providing a fabric cutting device for forming the longitudinal edge of a product fabric that can significantly improve workability, manufacturability, and productivity by preventing waste of fabric materials by not generating any scraps when cutting the fabric fabric, thereby providing economic efficiency, and by providing a product fabric that can be easily set and adjusted to have a size and diagonal gradient on both ends that meets the needs of consumers or applicable products.

[0018] The problems solved by the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0020] According to one aspect of the present invention for achieving the objectives and other features of the present invention, a fabric cutting device for manufacturing a product fabric by cutting a fabric of a predetermined size in a direction intersecting the width direction is provided, comprising: a device frame structure; an edge forming cutting unit provided in the device frame structure and configured to cut in a direction intersecting the supply direction of the fabric; a fabric guide unit provided in the device frame structure and configured to guide the fabric to the edge forming cutting unit; and a control panel configured to control the operation of the fabric cutting device.

[0021] In the present invention, the edge forming cutting unit may be configured to cut the fabric in the width direction, but cut perpendicularly or diagonally with respect to the length direction to form a longitudinal edge of the product fabric.

[0022] In the present invention, the device frame structure comprises a body frame configured to have a rectangular frame structure, and side walls provided to stand upright on both sides of the upper part of the body frame, and the edge forming cutting unit may comprise an upper and lower support frame, a rotary frame means provided between the upper and lower support frames, a rotary frame driving means provided in the device frame structure and configured to rotate around the longitudinal center of the rotary frame means, a cutter driving means provided on the inner upper part of the rotary frame means, a cutting means configured to be driven up and down by the cutter driving means to cut a fabric, and a cutting support member provided on the inner lower part of the rotary frame means to support the fabric.

[0023] In the present invention, the rotary frame means comprises a square frame member and a rotary shaft, one end of which is fixed to the upper and lower center of the square frame member and the other end of which is rotatably coupled to each of the upper and lower support frames, and the rotary frame driving means is configured to drive the rotary frame means in the forward and reverse directions with the longitudinal center of the rotary frame means as the rotation axis, and the cutter driving means may be composed of a linear actuator having a linear drive rod or a cylinder actuator.

[0024] In the present invention, the cutting means may include a coupling bracket coupled to a lifting drive unit of the cutter driving means; and a cutting member provided at the lower part of the coupling bracket.

[0025] In the present invention, the cutting member may be formed as a plate-shaped cutter having a cutting blade at the lower end.

[0026] In the present invention, the cutting support member is formed as a plate-shaped support, and one end of the cutting support member may be positioned so that it intersects with the cutting blade of the cutting member when the cutting member descends.

[0027] In the present invention, a transparent window is formed in the central portion of the cutting support member, and a detection means for detecting the presence of a fiber fabric may be provided at the lower portion of the transparent window.

[0028] In the present invention, the edge forming cutting unit may further include a fabric pressing means configured to press the upper surface of the cutter support member when the cutting means is lowered.

[0029] In the present invention, the fabric pressing means may include: an "L"-shaped bracket coupled to the coupling bracket; a height adjustment screw screw-coupled to the center of the "L"-shaped bracket and having an adjustment knob at its upper end; and a pressing plate provided at the lower end of the height adjustment screw.

[0030] In the present invention, the fabric pressing means may include: an "L"-shaped bracket coupled to the coupling bracket; a vertical moving rod that is movable vertically through the central part of the "L"-shaped bracket, with a locking portion formed at the upper end that engages with the upper surface of the coupling bracket; a pressing plate provided at the lower end of the vertical moving rod; and a coil spring that surrounds the vertical moving rod and applies elastic force to the pressing plate in a direction away from the coupling bracket.

[0031] In the present invention, the fabric guide unit may include: a support plate provided on the bottom portion of the side wall; a driving roller having both ends rotatably provided on the side wall at the fabric inlet side of the edge forming cutting unit; a driving motor for rotating the driving roller; a support roller provided facing the driving roller; and a plurality of fabric guide rollers provided on the device frame structure to guide the fabric with the driving roller and the support roller.

[0032] In the present invention, the fiber fabric guide roller may include: a width adjustment guide roller having both ends rotatably provided on the side wall; an upper guide roller having a gap provided on the upper part of the side wall; and one or more lower guide rollers, each having a portion exposed from the support plate and both ends rotatably provided on the side wall.

[0033] In the present invention, the width adjustment guide roller includes a pair of width adjustment rollers that are movable along a roller shaft and fixed at a moved position, and the fabric guide unit may further include a fabric alignment unit configured to align the fabric supplied to the edge forming cutting unit.

[0034] In the present invention, the fabric alignment unit may include a pair of slots formed in the support plate; a spacing adjustment means movably provided in the slots; and a fixing means for fixing the spacing adjustment means to the support plate.

[0035] In the present invention, the device further comprises a tension force application unit configured to be provided in the device frame structure and to cause the fiber fabric cut by the edge forming cutting unit to become taut, wherein the tension force application unit may include a fixed block provided on the inner or outer side of the side wall, a tension force application movable block provided to be movable up and down on the fixed block and having both ends of the support roller rotatably coupled thereto, and a movable block lifting driving means configured to drive the tension force application movable block up and down through the control of the control panel.

[0036] In the present invention, the moving block lifting driving means may include a fixed frame provided at the upper end of the side wall and a moving frame provided parallel to the fixed frame; a rotary operating knob or driving motor provided on the fixed frame; a driving force transmission means for receiving the driving force of the rotary operating knob or driving motor and driving the moving frame up and down; and a connecting rod, one end of which penetrates the upper end of the fixed block and is coupled to the moving block for applying tension force, and the other end of which is coupled to the moving frame.

[0037] In the present invention, an elastic body is provided between the fixed frame and the movable frame, and the elastic body may be composed of a coil spring that wraps around the outer side of the connecting rod. Effects of the invention

[0039] The fabric cutting device for forming a longitudinal edge of a product fabric according to the present invention provides the following effects.

[0040] First, the present invention has the effect of automatically producing a product fabric having a predetermined width and length, such as a cleaning pad, by receiving a continuous strip-shaped fiber fabric and forming the product fabric in which the two opposing edges are formed orthogonally and / or diagonally.

[0041] Secondly, the present invention has the effect of ensuring economic efficiency by preventing waste of fabric material through the complete absence of scraps when cutting the fabric to have orthogonal or diagonal edges at both ends.

[0042] Third, the present invention can provide a product fabric having a size and diagonal gradient on both ends that meets the needs of consumers or the application product, thereby having the effect of significantly improving workability, manufacturability, and productivity.

[0043] The effects of the present invention are not limited to those mentioned above, and other unmentioned problems will be clearly understood by those skilled in the art from the description below. Brief explanation of the drawing

[0045] FIG. 1 is a drawing of a fabric cutting device for forming a longitudinal edge of a product fabric according to the present invention, viewed from one side (fiber fabric supply side). FIG. 2 is a drawing showing an enlarged view of a part of a fabric cutting device for forming a longitudinal edge of a product fabric according to the present invention. FIG. 3 is a view from one side of an edge cutting unit included in a fabric cutting device for forming a longitudinal edge of a product fabric according to the present invention. FIG. 4 is a drawing of an edge-forming cutting unit included in a fabric cutting device for forming a longitudinal edge of a product fabric according to the present invention, viewed from the other side. FIG. 5 is a side view of a portion equipped with an edge forming cutting unit and a tension force application unit included in a fabric cutting device for forming a longitudinal edge of a product fabric according to the present invention. FIG. 6 is a drawing showing a portion equipped with a tension force application unit and a fabric pressing means included in a fabric cutting device for forming a longitudinal edge of a product fabric according to the present invention. FIGS. 7 to 17 are photographs taken of a fabric cutting device for forming a longitudinal edge of a product fabric according to the present invention. Specific details for implementing the invention

[0046] Further objects, features, and advantages of the present invention can be more clearly understood from the following detailed description and the accompanying drawings.

[0047] Before providing a detailed description of the present invention, it should be understood that the present invention is capable of various modifications and may have various embodiments, and that the examples described below and illustrated in the drawings are not intended to limit the present invention to specific embodiments, but rather include all modifications, equivalents, and substitutions that fall within the spirit and scope of the present invention.

[0048] When it is stated that one component is "connected" or "connected" to another component, it should be understood that while it may be directly connected or connected to that other component, there may also be other components in between. On the other hand, when it is stated that one component is "directly connected" or "directly connected" to another component, it should be understood that there are no other components in between.

[0049] The terms used in this specification are used merely to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, terms such as "comprising" or "having" are intended to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0050] Additionally, terms such as "...part," "...unit," and "...module" described in the specification refer to a unit that processes at least one function or operation, and this may be implemented in hardware, software, or a combination of hardware and software.

[0051] Furthermore, in the description referring to the attached drawings, identical components are assigned the same reference numeral regardless of drawing symbols, and redundant descriptions thereof are omitted. In describing the present invention, if it is determined that a detailed description of related prior art could unnecessarily obscure the essence of the present invention, such detailed description is omitted.

[0052] A fabric cutting device for forming a longitudinal edge of a product fabric according to the present invention is configured to continuously and automatically receive a strip-shaped fiber fabric wound so as to be unwound from, for example, the supply side, and to cut the strip-shaped fiber fabric perpendicularly to the direction in which it is supplied and / or cut it diagonally at a predetermined angle so that both edges are formed perpendicularly to or diagonally to the longitudinal direction of the fiber fabric, that is, to manufacture a product fabric in which the cut edges are formed perpendicularly to or diagonally to the longitudinal direction by cutting the fiber fabric in the width direction, thereby enabling the production of a fiber fabric having a predetermined edge through a fully automated process without generating scraps.

[0053] In addition, the present invention can provide product fabrics that meet the needs of consumers or applicable products by producing product fabric edges through a single piece of equipment, thereby significantly improving workability, manufacturability, and productivity.

[0054] Hereinafter, a fabric cutting device for forming a longitudinal edge of a product fabric according to a preferred embodiment of the present invention will be described in detail with reference to FIGS. 1 to 17.

[0055] FIG. 1 is a view of a fabric cutting device for forming a longitudinal edge of a product fabric according to the present invention, seen from one side (fiber fabric supply side); FIG. 2 is an enlarged view of a part of the fabric cutting device for forming a longitudinal edge of a product fabric according to the present invention; FIG. 3 is a view of an edge cutting unit included in the fabric cutting device for forming a longitudinal edge of a product fabric according to the present invention, seen from one side; FIG. 4 is a view of an edge forming cutting unit included in the fabric cutting device for forming a longitudinal edge of a product fabric according to the present invention, seen from the other side; FIG. 5 is a side view of a part equipped with an edge forming cutting unit and a tension force applying unit included in the fabric cutting device for forming a longitudinal edge of a product fabric according to the present invention; FIG. 6 is a view showing a part equipped with a tension force applying unit and a fiber fabric pressing means included in the fabric cutting device for forming a longitudinal edge of a product fabric according to the present invention. FIGS. 7 to 17 are photographs taken of a fabric cutting device for forming a longitudinal edge of a product fabric according to the present invention.

[0056] A fabric cutting device for forming a longitudinal edge of a product fabric according to the present invention is a fabric cutting device for providing a product fabric that forms an edge of a predetermined shape by cutting a supplied strip-shaped fiber fabric in a direction intersecting its width direction, and as shown in FIGS. 1 to 17, it mainly comprises a device frame structure (100), an edge forming cutting unit (200), a fiber fabric guide unit (300), and a control panel (400), and may additionally include a tension force application unit (500).

[0057] Specifically, the fabric cutting device for forming a longitudinal edge of a product fabric according to the present invention is a fabric cutting device for providing a product fabric that forms an edge of a predetermined shape by cutting a supplied strip-shaped fiber fabric in a direction intersecting its width direction, and as shown in FIGS. 1 to 17, comprises: a device frame structure (100) that forms the frame of the device and has the following components installed thereon; an edge forming cutting unit (200) provided in the device frame structure (100) and configured to cut in a direction intersecting the supply direction (transfer direction) of the fiber fabric during the process of transferring from one end side to the other end side of the device frame structure (100), that is, configured to cut perpendicularly to the width direction of the strip-shaped fiber fabric or diagonally to form a longitudinal edge of the product fabric; and a fiber fabric guide unit (300) provided in the device frame structure (100) and configured to guide the strip-shaped fiber fabric to the edge forming cutting unit (200). and a control panel (400) provided on one side of the device frame structure (100) and configured to control the operation of the fabric cutting device, that is, configured to control the operation of the edge forming cutting unit (200) and the fabric guide unit (300). The present invention may further include a tension force application unit (500) provided on the device frame structure (100) and configured to provide tension force to the fabric, that is, to make the fabric cut by the edge forming cutting unit (200) taut.

[0058] The above device frame structure (100) forms the frame of the device and is a component on which the following components are installed.

[0059] In one embodiment, the device frame structure (100) comprises a body frame (110) configured to have a rectangular frame structure, and side walls (120) provided to stand upright on both upper sides of the body frame (110) and equipped with some components of a fabric cutting device, such as an edge forming cutting unit (200), a fabric guide unit (300), and a tension force application unit (500).

[0060] The above device frame structure (100) is not particularly limited as long as it is configured to be installed with the components of the fabric cutting device mounted thereon.

[0061] Next, the edge forming cutting unit (200) is configured to be provided in the device frame structure (100) and to cut in a direction that intersects the supply direction (transfer direction) of the fabric during the process of transferring from one end side to the other end side of the device frame structure (100), that is, to cut at an angle or diagonally perpendicular to the width direction of the strip-shaped fabric to form a longitudinal edge of the product fabric.

[0062] Specifically, the edge forming cutting unit (200) comprises a pair of upper and lower support frames (210) (only the upper support frame is shown in the drawing) provided at the top and bottom of the side wall (120) of the device frame structure (100), a rotating frame means (220) provided between the upper and lower support frames (210) and rotatably configured with a center line as a rotation axis, a rotating frame driving means (230) provided on the device frame structure (100), specifically provided on the lower side of the device frame structure (100) to drive the rotating frame means (220) to rotate, a cutter driving means (240) provided on the inner upper side of the rotating frame means (220) to drive the cutting means (250) up and down, a cutting means (250) configured to cut a fabric by being driven up and down by the cutter driving means (240), and on the inner lower side of the rotating frame means (220). It includes a cutting support member (260) that is provided and supports the fiber fabric to be cut by crossing during the downward movement of the cutting means (250).

[0063] The above-mentioned rotating frame means (220) is provided between the upper and lower support frames (210) and rotates at a predetermined angle in the forward and reverse directions by means of the above-mentioned rotating frame driving means (230), with the vertical center line as the rotation axis and the direction perpendicular to the longitudinal direction of the fabric.

[0064] Specifically, the rotary frame means (220) in one embodiment includes a square frame member (221) and a rotary shaft (222) having one end fixed to the upper and lower center of the square frame member (221) and the other end rotatably coupled to the upper and lower support frame (210).

[0065] The above rotary frame driving means (230) is provided in the device frame structure (100) and is configured to drive the rotary frame means (220) to rotate in the forward and reverse directions at a predetermined angle according to a control signal from the control panel.

[0066] In one embodiment, the rotary frame driving means (230) may include a forward / reverse rotatable driving motor (e.g., a stepping motor) (231) (see FIG. 15) provided in the device frame structure (100), and a rotary driving shaft (not shown) that transmits the rotational driving force of the driving motor to one of the rotation shafts (222) of the rotary frame means (220).

[0067] The cutter driving means (240) is provided on the inner upper part of the rotary frame means (220) and is a component that drives the cutting means (250) up and down, and may be composed of a linear actuator or a cylinder actuator in which the driving rod (241) drives linearly (see FIG. 14).

[0068] The above cutting means (250) is a component configured to be driven up and down by the cutter driving means (240) and to cut the fabric in conjunction with the cutting support member (260) when lowered.

[0069] Specifically, the cutting means (250) includes a coupling bracket (251) coupled to the lower end of the drive rod (241) of the cutter driving means (240), and a cutting member (252) provided on the lower surface (bottom) of the coupling bracket (251).

[0070] The above cutting member (252) may be formed as a plate cutter having a cutting blade (252a) at the bottom.

[0071] Here, the cutting blade (252a), which is the lower part of the cutting member (252), may be formed with an inclined gradient. In other words, the cutting blade (252a) of the cutting member (252) is formed to be inclined from one end to the other.

[0072] Additionally, the cutting support member (260) is provided on the inner lower part of the rotary frame means (220) and is a component that supports the cutting of the fabric by crossing it during the downward movement of the cutting means (250).

[0073] The above cutting support member (260) is formed as a plate-shaped support, and a fabric to be cut is positioned on its upper surface.

[0074] And the leading edge of the cutting support member (260), that is, the end position in the direction of supplying the fabric, is positioned so that the cutting blade (252a) of the cutting member (252) intersects when the cutting member (252) descends.

[0075] Meanwhile, the edge forming cutting unit (200) of the present invention may further include a detection means for detecting whether the fiber fabric is located in the cutting means (250).

[0076] In one embodiment, the central portion of the cutting support member (260) is provided with a transparent window, and the lower portion of the transparent window is provided with a detection means for detecting whether a fiber fabric is present.

[0077] The above detection means may be a known sensor module capable of detecting the presence or location of an object, such as a light sensor or an infrared sensor.

[0078] Additionally, the edge forming cutting unit (200) may further include a fabric pressing means (270) capable of pressing the upper surface of the cutter support member (260) when the cutting means (250) is lowered.

[0079] The above-described fabric pressing means (270) may, in one embodiment, be composed of a pressing plate that extends from one side of the lower surface of the coupling bracket (251) and extends a predetermined distance downward from the lower end of the cutting blade (252a) of the cutting member (252). Here, the pressing plate may be configured to be coupled to the coupling bracket (251) so that its height can be manually adjusted.

[0080] In another embodiment, the fabric pressing means (270) comprises an "L" shaped bracket (271) coupled to the rear end of the coupling bracket (251), a height adjustment screw (272) screw-coupled to the center of the "L" shaped bracket (271) and having an adjustment knob at the upper end, and a pressing plate (272) provided at the lower end of the height adjustment screw (272).

[0081] In another embodiment, the fabric pressing means (270) may include an "L" shaped bracket coupled to the rear end of the coupling bracket (251), an up-and-down moving rod that is movable up and down through the central part of the "L" shaped bracket and has a locking part formed at the upper end that is caught on the upper surface of the coupling bracket (251), a pressing plate provided at the lower end of the up-and-down moving rod, and a coil spring that surrounds the up-and-down moving rod and applies elastic force to the pressing plate in a direction away from the coupling bracket (251).

[0082] Next, the fabric guide unit (300) is a component configured to be provided in the device frame structure (100) and to guide a strip-shaped fabric to the edge-forming cutting unit (200).

[0083] The above-described fabric guide unit (300) includes a support plate (310) provided on the bottom portion of the side wall (120), a drive roller (320) provided on the front side based on the fabric supply direction of the edge forming cutting unit (200), a drive motor (330) (see FIG. 17) for rotating the drive roller (320), a support roller (340) provided facing the drive roller (330) above and below, and a plurality of fabric guide rollers (350) provided on one side of the device frame structure (100) to guide the fabric with the drive roller (320) and the support roller (340).

[0084] The above-mentioned fabric guide roller (350) may include a width adjustment guide roller (351) provided at one end of the side wall (120) of the device frame structure (100), an upper guide roller (352) provided with a gap on the upper part of the side wall (120), and a lower guide roller (353) provided on the side wall (120) with a portion exposed from the support plate (310).

[0085] The width adjustment guide roller (351) is configured to include a pair of width adjustment rollers that can move along a roller shaft to adjust the spacing according to the width of the fabric and are fixed at the moved position.

[0086] Meanwhile, the above-mentioned fabric guide unit (300) may further include a fabric alignment unit (360) configured to align the fabric supplied to the edge forming cutting unit (200).

[0087] The above-described fabric alignment unit (360) includes a pair of slots (361) formed at a distance in a direction perpendicular to the supply direction of the fabric on the support plate (310), a spacing adjustment means (362) movably provided in the slots (361), and a fixing means (363) for fixing the spacing adjustment means (362) to the support plate (310) (see FIG. 8).

[0088] The above spacing adjustment means (362) includes an "L" shaped bracket and a guide projection (not shown) that extends from the lower surface of the horizontal portion of the "L" shaped bracket and guides along the slot (361).

[0089] The above fixing means (363) may be composed of a coupling hole formed in the horizontal portion of the "L"-shaped bracket of the spacing adjustment means (362), and a butterfly bolt and nut inserted into the coupling hole and fixed between the upper surface of the "L"-shaped bracket and the lower surface of the support plate (310).

[0090] Meanwhile, the above-mentioned fiber fabric guide unit (300) may further include a detection means for detecting the presence of the supplied fiber fabric, which is provided on the device frame structure (100) on the side where the fiber fabric is supplied.

[0091] In one embodiment, the detection means may be a known sensor module capable of detecting the presence or location of an object, such as a light sensor or an infrared sensor.

[0092] Additionally, the fiber guide unit (300) may further include a fiber unwinding roller or fiber unwinding shaft (370) which is provided on one end of the device frame structure (100) and allows a roll-shaped fiber to be cut to be wound and continuously unwound by the operation of the fiber guide unit (300).

[0093] Next, the control panel (400) is configured to be provided on one side of the device frame structure (100) to control the operation of the fabric cutting device, that is, to control the operation of the edge forming cutting unit (200) and the fabric guide unit (300).

[0094] The above control panel (400) may be configured to include a power switch for on / off control of the entire device, a plurality of control switches for controlling each component including a drive motor, for example, the drive motor and linear actuator of the edge forming cutting unit (200), the drive motor of the fabric guide unit (300), and the drive motor included in the tension force application unit (500) to be described below.

[0095] Meanwhile, the present invention may further include a tension force application unit (500) configured to be provided in the device frame structure (100) and to make the fabric cut by the edge forming cutting unit (200) taut, that is, to provide tension force to the fabric.

[0096] The above tension force application unit (500) includes a fixed block (510) provided on the inner or outer side (in the drawing, inner side) of the side wall (120) of the device frame structure (100) at the front part of the edge forming cutting unit (200), a tension force application moving block (520) provided to be movable up and down on the fixed block (510) and having both ends of the support roller (340) rotatably connected thereto, and a moving block lifting driving means (530) configured to drive the tension force application moving block (520) up and down through the control of the control module of the control panel (400).

[0097] The support roller (340) provided on the above-mentioned tension-applying moving block (520) moves downward by the moving block lifting driving means (530) to press the upper surface of the fabric passing between it and the driving roller (320), and when the fabric is pressed by the fabric pressing means (270) that moves together with it during downward movement for cutting by the cutting unit (200) and is cut by the cutting member (252), the driving motor (330) that drives the driving roller (320) is temporarily stopped so that the fabric to be cut is cut while being kept taut to a predetermined degree.

[0098] Furthermore, the above-described moving block lifting driving means (530) comprises a fixed frame (531) provided at the upper end of the side wall (120) of the device frame structure (100), a moving frame (532) provided parallel to the fixed frame (531) and movable up and down on the side wall (120) of the device frame structure (100), a rotary operating knob (533) provided on the fixed frame (531), a driving force transmission means for driving the moving frame (532) up and down by receiving the driving force of the rotary operating knob (533), and a connecting rod (534) having one end connected to the tension force applying moving block (520) by penetrating the upper end of the fixed block (510) and the other end connected to the moving frame (532).

[0099] The above-mentioned rotary operation knob (533) can be replaced with a drive motor that rotates in forward and reverse directions by receiving a control signal from the control panel (400).

[0100] The above driving force transmission means may be configured in a known configuration that receives rotational driving force from a rotary operating knob (533) or a driving motor, thereby enabling the moving frame (532) to move up and down. For example, the driving force transmission means may be configured as a driving force transmission means of a feed screw drive method, a rack-and-pinion drive method, a linear actuator drive method, or a cylinder drive method. The drawing shows a case configured as a feed screw drive method.

[0101] And the above-mentioned moving block lifting driving means (530) may be equipped with a component for smooth up-and-down driving of the connecting rod (534) when the connecting rod (534) is lifted.

[0102] In one embodiment, an elastic body (535) may be provided between the fixed frame (531) and the movable frame (532). The elastic body (535) may be composed of a coil spring that wraps around the outer side of the connecting rod (534).

[0103] According to the fabric cutting device for forming longitudinal edges of a product fabric according to the present invention as described above, the present invention can automatically produce a product fabric having a predetermined width and length, such as a cleaning pad product, by receiving a continuous strip-shaped fiber fabric and forming opposing edges orthogonally and / or diagonally. Furthermore, when cutting the fiber fabric to have orthogonal or diagonal edges at both ends, no scraps are generated at all, thereby preventing waste of fabric material and ensuring economic efficiency.

[0104] In addition, the present invention has the advantage of significantly improving workability, manufacturability, and productivity by providing a product fabric having a size and diagonal gradient on both ends that meets the needs of consumers or the application product.

[0105] Meanwhile, although the fabric cutting device of the present invention described above is described as cutting a strip-shaped fabric having a predetermined width, the term "strip-shaped" here can be interpreted to mean having a length that is relatively shorter than the longitudinal direction.

[0106] The embodiments described in this specification and the accompanying drawings are merely illustrative of a part of the technical concept included in the present invention. Accordingly, since the embodiments disclosed in this specification are intended to explain, not limit, the technical concept of the present invention, it is obvious that the scope of the technical concept of the present invention is not limited by these embodiments. All variations and specific embodiments that can be easily deduced by a person skilled in the art within the scope of the technical concept included in the specification and drawings of the present invention should be interpreted as being included within the scope of the rights of the present invention. Explanation of the symbols

[0108] 100: Device frame structure 110: Body Frame 120: Sidewall 200: Edge forming cutting unit 210: Upper and lower support frame 220: Rotating frame means 221: Square frame member 222: Rotating shaft 230: Rotating frame driving means 231: Drive motor 240: Cutter driving means 241: Drive Load 250: Cutting means 251: Connecting bracket 252: Cutting member 252a: Cutting blade 260: Cutting support member 270: Textile pressing means 271: "L" shaped bracket 272: Pressing plate 300: Textile guide unit 310: Support plate 320: Drive roller 330: Drive motor 340: Support roller 350: Fabric guide roller 351: Width adjustment guide roller 352: Upper guide roller 353: Lower guide roller 360: Fabric Alignment Unit 361: Slot 362: Spacing adjustment means 363: Fixing means 370: Fabric unwinding roller (or fabric unwinding shaft) 400: Control panel 500: Tension Authorization Unit 510: Fixed Block 520: Moving block for applying tension 530: Moving block lifting drive means 531: Fixed frame 532: Moving Frame 533: Rotary operation knob (or drive motor) 534: Connection Load 535: Elastomer

Claims

Claim 1 A fabric cutting device for manufacturing a product fabric by cutting a fabric of a predetermined size in a direction intersecting the width direction, comprising: a device frame structure; an edge forming cutting unit provided in the device frame structure and configured to cut in a direction intersecting the supply direction of the fabric; a fabric guide unit provided in the device frame structure and configured to guide the fabric to the edge forming cutting unit; and a control panel configured to control the operation of the fabric cutting device. Claim 2 A fabric cutting device according to claim 1, characterized in that the edge forming cutting unit is configured to cut the fabric in the width direction, but cut perpendicularly or diagonally with respect to the length direction to form a longitudinal edge of the product fabric. Claim 3 A fabric cutting device according to claim 1 or 2, wherein the device frame structure comprises a body frame configured to have a rectangular frame structure, and side walls provided to stand upright on both sides of the upper part of the body frame, and the edge forming cutting unit comprises an upper and lower support frame, a rotary frame means provided between the upper and lower support frames, a rotary frame driving means provided on the device frame structure and configured to rotate around the longitudinal center of the rotary frame means, a cutter driving means provided on the inner upper part of the rotary frame means, a cutting means configured to be driven up and down by the cutter driving means to cut a fabric, and a cutting support member provided on the inner lower part of the rotary frame means to support the fabric. Claim 4 A fabric cutting device according to claim 3, wherein the rotary frame means comprises a square frame member and a rotary shaft, one end of which is fixed to the upper and lower center of the square frame member and the other end of which is rotatably coupled to each of the upper and lower support frames, the rotary frame driving means is configured to drive the rotary frame means in the forward and reverse directions with the longitudinal center of the rotary frame means as the rotation axis, and the cutter driving means is composed of a linear actuator or a cylinder actuator having a linear drive rod. Claim 5 A fabric cutting device according to claim 4, wherein the cutting means comprises: a coupling bracket coupled to a lifting drive part of the cutter driving means; and a cutting member provided at the lower part of the coupling bracket. Claim 6 A fabric cutting device according to claim 5, characterized in that the cutting member is formed as a plate-shaped cutter having a cutting blade at the lower end. Claim 7 A fabric cutting device according to claim 5, wherein the cutting support member is formed as a plate-shaped support, and one end of the cutting support member is positioned so that the cutting blade of the cutting member intersects when the cutting member descends. Claim 8 A fabric cutting device according to claim 7, characterized in that the central portion of the cutting support member has a transparent window formed therein, and the lower portion of the transparent window is provided with a detection means for detecting the presence or absence of a fabric. Claim 9 A fabric cutting device according to claim 5, characterized in that the edge forming cutting unit further includes a fabric pressing means configured to press the upper surface of the cutter support member when the cutting means is lowered. Claim 10 A fabric cutting device according to claim 9, wherein the fabric pressing means comprises: an "L"-shaped bracket coupled to the coupling bracket; a height adjustment screw screw-coupled to the center of the "L"-shaped bracket and having an adjustment knob at the upper end; and a pressing plate provided at the lower end of the height adjustment screw. Claim 11 A fabric cutting device according to claim 9, wherein the fabric pressing means comprises: an "L"-shaped bracket coupled to the coupling bracket; an up-and-down moving rod capable of moving up and down through the central part of the "L"-shaped bracket, wherein a locking portion is formed at the upper end of which is engaged with the upper surface of the coupling bracket; a pressing plate provided at the lower end of the up-and-down moving rod; and a coil spring provided to surround the up-and-down moving rod and apply elastic force to the pressing plate in a direction away from the coupling bracket. Claim 12 A fabric cutting device according to claim 3, wherein the fabric guide unit comprises: a support plate provided on the bottom portion of the side wall; a drive roller having both ends rotatably provided on the side wall at the fabric inlet side of the edge forming cutting unit; a drive motor for rotating the drive roller; a support roller provided facing the drive roller; and a plurality of fabric guide rollers provided on the device frame structure to guide the fabric with the drive roller and the support roller. Claim 13 A fabric cutting device according to claim 12, wherein the fabric guide roller comprises: a width-adjusting guide roller having both ends rotatably provided on the side wall; an upper guide roller having a gap provided on the upper part of the side wall; and one or more lower guide rollers, each having a portion exposed from the support plate and both ends rotatably provided on the side wall. Claim 14 A fabric cutting device according to claim 13, wherein the width adjustment guide roller comprises a pair of width adjustment rollers that are movable along a roller shaft and fixed at a moved position, and the fabric guide unit further comprises a fabric alignment unit configured to align the fabric supplied to the edge forming cutting unit. Claim 15 A fabric cutting device according to claim 14, wherein the fabric alignment unit comprises: a pair of slots formed in the support plate; a spacing adjustment means movably provided in the slots; and a fixing means for fixing the spacing adjustment means to the support plate. Claim 16 A fabric cutting device according to claim 12, further comprising a tension force applying unit configured to be provided on the device frame structure and to cause the fabric cut by the edge forming cutting unit to become taut, wherein the tension force applying unit comprises: a fixed block provided on the inner or outer side of the side wall; a tension force applying movable block provided to be movable up and down on the fixed block and having both ends of the support roller rotatably coupled thereto; and a movable block lifting driving means configured to drive the tension force applying movable block up and down through the control of the control panel. Claim 17 A fabric cutting device according to claim 16, wherein the above-described moving block lifting driving means comprises: a fixed frame provided at the upper end of the side wall; a moving frame provided parallel to the fixed frame; a rotary operating knob or driving motor provided on the fixed frame; a driving force transmission means for receiving the driving force of the rotary operating knob or driving motor and driving the moving frame up and down; and a connecting rod, one end of which penetrates the upper end of the fixed block and is coupled to the moving block for applying tension force, and the other end of which is coupled to the moving frame. Claim 18 A fabric cutting device according to claim 17, characterized in that an elastic body is provided between the fixed frame and the movable frame, and the elastic body is composed of a coil spring that wraps around the outer side of a connecting rod.

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