KR102239175B1 - Manufacturing apparatus of massive eva sponge fabrication unit with adjustable fabric thickness - Google Patents

Abstract

To provide technology for manufacturing an EVA sponge fabric of various thicknesses from a bulk fabric, a device for manufacturing a massive EVA sponge fabric to adjust a thickness of a fabric according to an embodiment of the present invention comprises: a cutting unit, a supplying unit, a back winding unit, and a returning unit. The cutting unit includes: a blade belt which forms a blade in a front side and is driven to be moved to a side direction; a first roller of a lower end of the blade belt; and a second roller of an upper end of the blade belt. The cutting unit forms a first discharge area and a second discharge area. The first discharge area discharges a first fabric which is the EVA sponge fabric which is formed by cutting the supplied EVA sponge bulk fabric to a thickness between the blade belt and the first roller. The second discharge area discharges a second fabric which is the remaining EVA sponge bulk fabric between the blade belt and the second roller except for the first fabric. The supplying unit supplies the EVA sponge bulk fabric to the cutting unit. The back winding unit receives the first fabric from the first discharge area and winds the same. The returning unit transfers the second fabric discharged from the second discharge area to a front side again and supplies the second fabric to the supplying unit again. The cutting unit is characterized by adjusting an interval of the blade belt and the first roller.

Description

Large-capacity EVA sponge fabric manufacturing device with adjustable fabric thickness{MANUFACTURING APPARATUS OF MASSIVE EVA SPONGE FABRICATION UNIT WITH ADJUSTABLE FABRIC THICKNESS}

The present invention relates to a fabric manufacturing apparatus used for fabricating EVA sponge products, and specifically, in manufacturing a rolled fabric having a certain thickness by cutting a plate-shaped EVA sponge bulk fabric in the longitudinal direction, the defect rate of the cut surface is very small. , Cutting efficiency and speed are increased, and the thickness of the fabric can be varied, so it relates to a technology capable of manufacturing fabrics of various products.

EVA (Ethylene Vinyl Acetate) sponge is one of the petrochemical products, and is used for sports shoes midsole and outsole, solar cell material, and extrusion coating material. Ethylene-vinyl acetate, also known as poly, is a copolymer of ethylene and vinyl acetate. The weight percent of vinyl acetate is usually 10 to 40%, the balance being ethylene. Broadly speaking, there are three types of EVA copolymers with different vinyl acetate content and different materials used.

Since the sponge made of EVA is harder, harmless to the human body, and is an eco-friendly material, it is in the spotlight as a substitute for PVC. EVA sponge processes raw materials by foaming, dyeing, etc. to produce a fabric in a certain plate shape, processing it to a certain pattern and thickness to produce a product, and then to produce a product through a trimming process of pressing and trimming the edges.

Of these, when producing bulk fabrics, bulk fabrics in the form of plates of a certain size are usually produced and supplied by transporting them. Thereafter, the bulk fabric is sliced and cut to a certain thickness to produce a product. Korean Patent Registration No. 10-1799254, in which such a technology is presented, proposes a method of manufacturing a fabric by slicing a bulk fabric by rotation of a band-shaped blade.

However, since this method can produce only fabrics of a certain thickness, there is a problem that the above device must be provided for each fabric thickness in order to manufacture fabrics of various thicknesses, and a device for polishing a blade is provided, but by the polishing device When the blade is heated and in contact with the bulk fabric, the bulk fabric can melt when slicing the EVA sponge with a melting point of about 80 degrees Celsius.Therefore, the defect rate of the cut surface is very high during fabric manufacturing, and it is impossible to continuously supply new fabric. Problems with are being pointed out.

Accordingly, an object of the present invention is to provide a technology capable of producing EVA sponge fabrics of various thicknesses from bulk fabrics using one automatic cutting device.

On the other hand, the present invention proposes a structure that effectively eliminates heating due to polishing of a blade portion in an automatic fabric cutting device having a belt-shaped blade structure, and cuts the fabric by minimizing the phenomenon that the bulk fabric melts or sticks to the blade during fabric manufacture. Another purpose is to provide a fabric manufacturing technology with high yield by minimizing the defect rate in the city and presenting a structure capable of continuously supplying new fabrics.

In order to achieve the above objects, a large-capacity EVA sponge fabric manufacturing apparatus capable of adjusting the fabric thickness according to an embodiment of the present invention includes a blade belt having a blade formed in the front and driven to move in a lateral direction, and the blade belt. Discharges a first fabric, which is an EVA sponge fabric obtained by cutting the supplied EVA sponge bulk fabric to a thickness between the blade belt and the first roller, including the first roller at the lower end of the blade belt and the second roller at the upper end of the blade belt. A cutting unit having a first discharge region and a second discharge region for discharging the second fabric, which is the remaining EVA sponge bulk fabric between the blade belt and the second roller, excluding the first fabric; A supply unit for supplying the EVA sponge bulk fabric to the cutting unit; A rear winding unit for receiving and winding the first fabric from the first discharge area; And a return unit for re-supplying the second fabric discharged from the second discharge area forward to the supply unit, wherein the cutting unit includes an adjustable distance between the blade belt and the first roller. It characterized in that it is configured to be.

The supply unit and the return unit include a plurality of rollers at least partially driven by a motor, and a belt installed to surround the rollers and moving in a longitudinal direction by driving the rollers, and the front side of the supply unit and the It is preferable that the return units are spaced apart in the height direction without being belt-connected to each other, so that the second fabric is returned to the supply unit or configured to supply a new EVA sponge bulk fabric to the spaced area.

The cutting unit includes a pair of circulating pulleys disposed on both sides wider than at least the width of the EVA sponge bulk fabric, wherein the blade belt is installed on the circulating pulley to receive the rotational force of the circulating pulley in a lateral direction It is configured to be circulated to move, and driven to cut the EVA sponge bulk fabric to a thickness between the blade belt and the first roller by contacting the EVA sponge bulk fabric moved backward while the blade belt circulates in the lateral direction. It is desirable to be.

The cutting unit further includes a height adjustment unit that is installed to be adjacent to the circulation pulley and is adjustable and fixed so that the relative height with the first roller can be varied, wherein the blade belt includes the circulation pulley and the height adjustment. It is preferable that the thickness of the first fabric is variable so that the distance between the first roller and the blade belt is adjusted by the variable fixing of the height adjustment unit by being installed over the portion.

The cutting unit is installed in any one of the lateral movement areas of the blade belt excluding the area in contact with the EVA sponge bulk fabric moved rearward while the blade belt is lateral movement, and sharpening the blade of the blade belt It is preferable to further include a unit.

It is installed in any one of the side movement areas of the blade belt excluding the area in contact with the EVA sponge bulk fabric moved backward while the blade belt is moved laterally, cleaning of foreign substances present in the blade belt and cooling the blade belt It is preferable to further include a; cleaning unit for high-speed spraying the cleaning liquid for the blade belt.

According to the present invention, by the height adjustment unit, since the distance between the blade belt and the first roller in which the thickness of the first fabric manufactured from the bulk fabric is determined is adjustable, the user can adjust the height to correspond to the desired thickness at the time of operation. Through a simple operation of manipulating and setting the distance between the blade belt and the first roller, EVA sponge fabrics of various thicknesses can be manufactured through a single fabric manufacturing device.

Accordingly, there is no need to use a different device for each thickness, thereby greatly reducing the cost of equipment, and there is an effect that it is possible to manufacture EVA sponge fabrics of various thicknesses according to the needs.

On the other hand, since the cleaning nozzle supplying cold water can be installed adjacent to the polishing unit, when supplying the cleaning liquid before and after polishing, wastes that may exist on the blade belt are removed by cutting the fabric, and at the same time, heated by polishing. Since the blade belt can be cooled by water cooling, it is possible to minimize the phenomenon that the bulk fabric melts or sticks to the blade during fabric manufacturing, thereby minimizing the defect rate when cutting the fabric.

On the other hand, since no devices are installed with a certain distance between the supply unit and the return unit, the area can function as an area that can supply new bulk fabric or effectively remove the remaining bulk fabric. Since it is possible to continuously supply fabric and remove unnecessary bulk fabric, there is an effect of greatly increasing work efficiency.

1 is a view for explaining the configuration of a large-capacity EVA sponge fabric manufacturing apparatus capable of adjusting the fabric thickness according to an embodiment of the present invention.
2 is a view for explaining in detail the structure of the cutting unit.
Figure 3 is an embodiment of the cross section A-A' of Figure 1 for explaining an embodiment of the blade belt and the height adjustment unit.
4 is a view for explaining an example in which the bulk fabric is cut according to an embodiment of the present invention.
5 is a view for explaining a configuration that can be included in the region C of FIG. 3 for explaining an embodiment of the polishing unit of the present invention.
6 is a view for explaining a configuration that can be included in area C of FIG. 3 for explaining an embodiment of the cleaning unit of the present invention.

In the following, various embodiments and/or aspects are now disclosed with reference to the drawings. In the following description, for illustrative purposes, a number of specific details are disclosed to aid in an overall understanding of one or more aspects. However, it will also be appreciated by those of ordinary skill in the art that this aspect(s) may be practiced without these specific details. The following description and the annexed drawings set forth in detail certain illustrative aspects of the one or more aspects. However, these aspects are illustrative and some of the various methods in the principles of the various aspects may be used, and the descriptions described are intended to include all such aspects and their equivalents.

As used herein, "embodiment", "example", "aspect", "example", etc. may not be construed as having any aspect or design described as being better or advantageous than other aspects or designs. .

In addition, the terms "comprising" and/or "comprising" mean that the corresponding feature and/or component is present, but excludes the presence or addition of one or more other features, components, and/or groups thereof. It should be understood as not doing.

In addition, terms including ordinal numbers such as first and second may be used to describe various elements, but the elements are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another component. For example, without departing from the scope of the present invention, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element. The term and/or includes a combination of a plurality of related listed items or any of a plurality of related listed items.

In addition, in the embodiments of the present invention, unless otherwise defined, all terms used herein, including technical or scientific terms, are those commonly understood by those of ordinary skill in the art to which the present invention belongs. It has the same meaning. Terms as defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and unless explicitly defined in the embodiments of the present invention, an ideal or excessively formal meaning Is not interpreted as.

In addition, in order to highlight and describe the technical features of the present invention, the illustrated matters of the accompanying drawings in the present invention illustrate some configurations such as general devices/configurations/devices applied in the same technical field as the present invention, and a description thereof. Can be omitted. In addition, for the same purpose, the illustrations of some configurations may be enlarged or excessively highlighted, or the illustrations may be reduced or omitted, but it will be natural that such matters do not limit the scope of the present invention.

1 is a view for explaining the configuration of a large-capacity EVA sponge fabric manufacturing apparatus capable of adjusting the fabric thickness according to an embodiment of the present invention, Figure 2 is a view for explaining the structure of the cutting unit in detail, Figure 3 is a blade belt And an embodiment of a cross-section A-A' of FIG. 1 for explaining an embodiment of the height adjustment unit. FIG. 4 is a view for explaining an example in which a bulk fabric is cut according to an embodiment of the present invention, and FIG. 5 is a diagram illustrating a configuration that can be included in area C of FIG. 3 for explaining an embodiment of the polishing unit of the present invention. FIG. 6 is a view for explaining a configuration that can be included in area C of FIG. 3 for explaining an embodiment of the cleaning unit of the present invention.

When described with reference to the above drawings, a large-capacity EVA sponge fabric manufacturing apparatus capable of adjusting the fabric thickness (hereinafter referred to as a'manufacturing apparatus') is largely a cutting unit 10, a supply unit 20, a winding unit 30, and It characterized in that it comprises a return unit (40). The components included in each unit may be fixedly supported by the frame 1000 or the like. That is, the frame 1000 includes a structure for supporting a configuration such as a roller, a motor, etc. that needs to be fixed in position so that the manufacturing device according to each embodiment of the present invention can be fixed or rotated, and a structure and a support that limit the appearance of the manufacturing device. It will be understood as a concept including all structures, and a detailed description thereof will be omitted as it is a structure for performing a general function unless a special structure for performing a function of each embodiment of the present invention is performed.

The cutting unit 10 includes a blade belt 11 having a blade 11-1 formed in the front and driven to move in a lateral direction, a first roller 12 at the lower end of the blade belt 11, and a blade belt. (11) EVA obtained by cutting the supplied EVA sponge bulk fabric (100, hereinafter referred to as bulk fabric) including the second roller 13 at the top to the thickness between the blade belt 11 and the first roller 12 The second fabric, which is the remaining EVA sponge bulk fabric, between the blade belt 11 and the second roller 13, excluding the first discharge area and the first fabric 101, which discharges the first fabric 101, which is a sponge fabric. It is a structure in which a second discharge region for discharging 102 is formed.

The first discharge area is an area between the blade belt 11 and the first roller 12, and the second discharge area is an area between the blade belt 11 and the second roller 13. Although there is no identification number, the first fabric 101 and the second fabric 102 are separated by a delta-shaped configuration in the rear area of the blade belt 11 of FIG. 1, so that the winding unit 30 and the return unit 40 to be described later are separated. ) To be transferred respectively.

In the description of the present invention, it will be understood that the front side is set to the supply unit 20 side, and the rear side is set to the winding unit 30 side. Each roller 50 and the transfer belt 60 including the first roller 12 and the second roller 13 have a bulk fabric 100, a first fabric 101 and a second fabric 102 as shown in FIG. Some of the rollers 50, which are rotated in the same moving direction, and include at least the first rollers 12 and the second rollers 13, receive electric power and control the driving force of the motor driven by the control panel (not shown). The other rollers, except for the rollers that are transmitted and rotated and rotated by receiving the driving force of the motor, are interlocked with each other by the transfer belt 60 to receive the driving force of the motor and rotated by receiving the driving force of the rotating roller.

A blade 11-1 is formed in front of the blade belt 11, and the blade is circulated and rotated in the width direction to cut the bulk fabric 100, that is, cut into slices. Since the blade 11-1 is in contact with the bulk fabric 100 while moving in the width direction, the bulk fabric 100 is cut by the cutting force of the blade.

That is, referring to the bar shown in FIG. 3, the cutting unit 10 further includes a pair of circulation pulleys 14 for circulating the blade belt 11 in the width direction, and the blade belt 11 is shown in FIG. 3 It is installed on the circulation pulley 14 and is circulated and moved as shown in the same. The circulation pulley 14 is disposed on both sides wider than the width of the bulk fabric 100.

According to this structure, as shown in FIG. 4, the blade belt 11 is installed while being tensioned at both sides of a pair of circulation pulleys 14 and receives rotational force such as a motor transmitted to the circulation pulley 14 in the lateral direction, That is, while circulating in the width direction of the bulk fabric 100 and in contact with the bulk fabric 100 moving backward, the bulk fabric 100 is cut to a thickness between the blade belt 11 and the first roller 12. By cutting (slicing) according to the circulation movement of 11-1), the first fabric 101 and the second fabric 102 may be manufactured.

At this time, as shown in Figs. 1, 2 and 4, the blade 11-1 is inclined so that the formed shape thereof is inclined toward the first roller 12 from the second roller 13 side, the thickness of the blade belt 11 It is characterized in that the blade is formed to decrease. In addition, while the first roller 12 and the second roller 13 are formed with an uneven structure, the distance between the blade belt 11 and the blade belt 11 is narrower than the original thickness of the first fabric 101 and the second fabric 102. , The bulk fabric 100 and the first fabric 101 and the second fabric 102 may be configured to be reinforced in strength and preserved by giving a weak compressive force to the second fabric 102. In addition, due to the shape of the blade 11-1 as described above, the second fabric 102 is effectively transferred to the return unit 40 while cutting the bulk fabric 100, and the first fabric 101 is naturally It may be configured to be transferred to the winding unit 30.

At this time, in an embodiment of the present invention, the cutting unit 10 is configured such that the distance between the blade belt 11 and the first roller 12 is adjustable. According to this feature, by adjusting the distance between the blade belt 11 and the first roller 12, the thickness of the first fabric 101 manufactured by being sliced according to the corresponding thickness is varied.

Examples of this are shown in FIGS. 2 and 3 and the like. First, referring to FIG. 2, when the blade belt 11 is configured to be adjustable in the height direction HD, the distance d between the first roller 12 and the blade belt 11 can be adjusted, The spacing of the first fabric 101 may be varied according to the spacing d.

To this end, as shown in Fig. 3, the blade belt 11 is configured to be movable in the height direction (HD) between the first roller 12 and the second roller 13, the cutting unit of the present invention The height adjustment unit 15 may be further included in (10). In an embodiment of the present invention, the height adjustment unit 15 is installed to be adjacent to the circulation pulley 14 as shown in FIG. 3 and is a kind of variable fixable so that the relative height with the first roller 12 can be changed. It can be implemented with a pair of sub pulleys.

In this case, the sub pulley is shown in FIG. 3, but the size and the like may be varied to be large or small. On the other hand, the sub-pulley is fixed to a separate case, etc., and the height of the case itself is varied, so that the relative height with respect to the first roller 12 may be varied. Alternatively, similar to that shown in FIG. 1, the sub pulley is fixed to a support, etc., and the height of the support and the case itself may be variable by a height variable pole or a motor driven or manually driven roller, etc., in which the height of the support may be variable. Can be implemented so that

According to such a configuration, the blade belt 11 is installed so as to span the height adjustment unit 15 such as the circulation pulley 14 and the sub bully, and the blade belt ( 11) is configured to rise or fall together so that the distance between the first roller 12 and the blade belt 11 is adjusted so that the thickness of the first fabric 101 is variable as described above.

On the other hand, in another embodiment of the present invention, the height of the first roller 12 may be configured to be variable. At this time, the height of the first roller 12 may be configured to be adjustable in the same or similar configuration as the height variable structure of the sub pulley described above.

In another embodiment of the present invention, instead of the sub pulley, a curved support for supporting the blade belt 11 may be disposed. In this case, the height of the support can be adjusted in the same or similar to the above-described example, so that the relative height of the blade belt 11 with respect to the first roller 12 can be adjusted.

At this time, in each embodiment, the height variation of the components that can be moved in the height direction is according to a structure such as manual or automatic operation of a screw thread rotation means (for example, a bolt), or a method such as inserting and fixing a discontinuous fixing pin insertion hole. It may be implemented according to a structure that can be implemented, and the embodiment for height adjustment is not limited to the above example, and any method may be possible as long as the height of the corresponding components is variable.

Meanwhile, the supply unit 20 includes the above-described transfer belt 60 and roller 50 for transferring the bulk fabric 100 from the front to the rear in order to supply the bulk fabric 100 to the cutting unit 10. It can be understood as a composition and a domain.

At least a portion of the roller 50, including the first roller 12 and the second roller 13 of the supply unit 20 and the cutting unit 10, has a pair of guide ribs protruding from the outer circumferential surface of the roller in the rotational direction. It is formed and may be provided to perform a function of guiding alignment in the width direction of the bulk fabric 100, the first fabric 101, and the second fabric 102 in the overall transport path. In addition, the guide rib is configured to be able to adjust its position in the width direction, for example, and provided so that the first fabric 101 and the second fabric 102 can be aligned using the bulk fabric 100 of various widths. Can be.

The winding unit 30 fixes and rotates the detachable winding core and the winding core, so that when the first fabric 101 is discharged from the first discharge area, it is supplied and the first fabric 101 is wound based on the winding core. It is a configuration that performs.

Meanwhile, the return unit 40 has a structure similar to that of the supply unit 20, but the supply unit 20 performs a function of supplying the front bulk fabric 100 to the cutting unit 10, but the return unit 40 performs a function of supplying the above-described second fabric 102 to the supply unit 20 again from the rear. The return unit 40 is provided with a roller 50 and a transfer belt 60 in a form similar to the supply unit 20 to resupply the second fabric 102 to the cutting unit 10 through the supply unit 20 do.

The second fabric 102 is a fabric remaining after the first fabric 101 is cut and manufactured from the bulk fabric 100, and the first fabric 101 may be manufactured again from the second fabric 102. In this case, in order to supply the second fabric 102 to the supply unit 20 instead of the bulk fabric 100 until the first fabric 101 can be manufactured, the return unit 40 provides the second fabric 102. It is to be transported forward.

At this time, structurally, the supply unit 20 needs to be formed to have a structure in which both the second fabric 20 re-entered from the return unit 40 and the newly supplied bulk fabric 100 can be introduced. To this end, as shown in FIG. 1, the supply unit 20 and the return unit 40 are installed to surround the plurality of rollers 50 and the rollers 50 at least partially driven by the motor as described above. It includes a belt that moves in the longitudinal direction by the drive of the roller 50, that is, a transfer belt 60, and the front side of the supply unit 20 and the return unit 40 are not connected to each other in the height direction. It is preferable that the second fabric 102 is returned to the supply unit 20 by forming a spaced apart region E, or configured to supply a new EVA sponge bulk fabric 100 to the spaced region E. . On the other hand, the spaced area (E), in addition to the supply function of the above-described fabrics, when the second fabric 102 is to be discarded as a thickness at which the first fabric 101 can no longer be manufactured, the second fabric 102 It can be used as an area to be discharged and removed from the manufacturing apparatus.

On the other hand, in each embodiment of the present invention, since the cutting force for the bulk fabric 100 is determined according to the polishing state of the blade 11-1, the blade belt 11 continuously maintains the polishing state of the blade 11-1. Need to be maintained. In order to maintain the polishing state of the blade 11-1, in order to maintain the polishing state while maintaining the structure as shown in FIG. 3 instead of a separate device, one of the moving regions of the blade belt 11 as shown in FIG. 5 ( In C), a polishing unit 16 such as C1 may be installed.

As shown in FIG. 5, the polishing unit 16 maximizes friction with the main body including the polishing head 160 and the polishing member 161 installed on the polishing head, and the blade 11-1 to increase polishing efficiency. It characterized in that it comprises a polishing roller 162 for. The polishing roller 162 is driven by a motor or the like, and preferably performs a function of polishing the blade 11-1 while being rotated to mainly contact the blade 11-1.

Meanwhile, the polishing unit 16 is preferably installed in any one of the side movement areas of the blade belt 11 excluding the area in contact with the EVA sponge bulk fabric 100 moved backward while the blade belt 11 is moved laterally. This is desirable. In the present invention, it may be installed in an area corresponding to (C) of FIG. 3, that is, a lower area.

Through this, when the blade belt 11 is circulated for slicing cutting of the bulk fabric 100, by installing the polishing unit 16 in the moving region, there is no need for a separate polishing process, and the circulation pulley 14 ) Can function so that the blade 11-1 is naturally polished by driving.

On the other hand, as described above, in order to perform the cooling function during the cleaning of the blade belt 11 and heating by the polishing unit 16, the cleaning unit 17 as shown in FIG. 6 is additionally provided in the area (C) described above. Can be installed. In the present invention, it is described that the polishing unit 16 and the cleaning unit 17 are installed in regions C1 and C2 as different embodiments, respectively. However, the above-described example is a description of the invention, and in various embodiments of the present invention, the polishing unit 16 and the cleaning unit 17 may be combined and installed, and preferably, the cleaning unit 17 is a polishing unit. (16) It may be installed on at least one side of both sides.

The cleaning unit 17 is any of the side movement areas C of the blade belt 11 excluding areas in contact with the EVA sponge bulk fabric moved backward while the blade belt 11 is moved laterally as shown in FIG. 6. It is installed in one. The cleaning unit 17 sprays the cleaning liquid from the upper and lower surfaces of the blade belt 11 to the blade belt 11 at high speed, thereby simultaneously cleaning the foreign substances present in the blade belt 11 and cooling the blade belt 11. You can do it.

As described above, although the embodiments have been described by the limited embodiments and drawings, those of ordinary skill in the art will understand that various modifications and variations are possible from the above description. The terms “include”, “consist” or “have” described above mean that components without a description to the contrary may be included, so other components are not excluded. It should be construed as more inclusive. In addition, the scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be interpreted as being included in the scope of the present invention.

Claims (6)

Including a blade belt with a blade formed in the front and driven to move in a lateral direction, a first roller at a lower end of the blade belt, and a second roller at an upper end of the blade belt, the supplied EVA sponge bulk fabric is provided with the blade. A first discharge area for discharging a first fabric, which is an EVA sponge fabric cut to a thickness between the belt and the first roller, and the remaining EVA sponge bulk fabric between the blade belt and the second roller excluding the first fabric A cutting unit having a second discharge area for discharging the second fabric;
A supply unit for supplying the EVA sponge bulk fabric to the cutting unit;
A rear winding unit for receiving and winding the first fabric from the first discharge area; And
Including; a return unit for resupply to the supply unit by transferring the second fabric discharged from the second discharge area back to the front,
The cutting unit,
It is configured so that the distance between the blade belt and the first roller is adjustable,
The cutting unit,
Includes; a pair of circulation pulleys disposed on both sides wider than at least the width of the EVA sponge bulk fabric, wherein the blade belt is installed on the circulation pulley and configured to circulate in the lateral direction by receiving the rotational force of the circulation pulley. Became,
The blade belt is driven to cut the EVA sponge bulk fabric to a thickness between the blade belt and the first roller by contacting the EVA sponge bulk fabric moved backward while circulating in the lateral direction,
The cutting unit,
It further includes; a height adjustment unit installed to be adjacent to the circulation pulley and capable of being variable and fixed so that a relative height with respect to the first roller can be varied, and
The blade belt is installed so as to span the circulation pulley and the height adjustment unit, so that the distance between the first roller and the blade belt is adjusted by variable fixing of the height adjustment unit, so that the thickness of the first fabric is variable. High-capacity EVA sponge fabric manufacturing device capable of adjusting the fabric thickness, characterized in that it is configured to be possible.
The method of claim 1,
The supply unit and the return unit include a plurality of rollers at least partially driven by a motor, and a belt installed to surround the rollers and moving in a longitudinal direction by driving of the rollers,
The front side of the supply unit and the return unit are spaced apart in a height direction without being belt-connected to each other, and the second fabric is returned to the supply unit, or configured to supply a new EVA sponge bulk fabric to a spaced area. A large-capacity EVA sponge fabric manufacturing device capable of adjusting the fabric thickness, characterized in that.
delete delete The method of claim 1,
The cutting unit,
A blade polishing unit installed in any one of the lateral movement regions of the blade belt excluding a region in contact with the EVA sponge bulk fabric moved rearward while the blade belt is lateral moved, and polishes the blade of the blade belt; A large-capacity EVA sponge fabric manufacturing device capable of adjusting the fabric thickness, characterized in that.
The method of claim 1,
It is installed in any one of the side movement areas of the blade belt excluding the area in contact with the EVA sponge bulk fabric moved backward while the blade belt is moved laterally, cleaning of foreign substances present in the blade belt and cooling the blade belt A large-capacity EVA sponge fabric manufacturing apparatus capable of adjusting the fabric thickness further comprising a; cleaning unit for high-speed spraying the cleaning liquid for the blade belt.

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