A three-layer structure discharge nozzle of a device that produces a packaging band

Abstract

The present invention relates to a three-layer structure discharge nozzle of a device for producing packaging bands, comprising a first input block, a second input block, and a discharge part, which can form a three-layer structure band. Therefore, using high-quality materials in the surface layer can improve functional qualities such as tensile strength and aesthetic quality, while using inexpensive materials in the middle layer can reduce costs.

Description

Technology Field

[0001] The present invention relates to a three-layer structured discharge nozzle for a device for producing packaging bands, and more specifically, to a three-layer structured discharge nozzle for a device for producing packaging bands that can produce bands with improved tensile strength at a low cost by selecting different materials for the surface layer and the middle layer. Background Technology

[0003] Generally, polypropylene bands (PP bands) are widely used as straps for packaging goods or boxes.

[0004] Conventionally, a single layer of PP band was used, allowing bands to be produced in only one color. This resulted in high manufacturing costs and time, as it required setting up a corresponding number of manufacturing lines or repeating a corresponding number of processes depending on the number of colors desired by the user.

[0005] In addition, there was a problem with single-layer PP bands having to choose either a cheap but low-tensile-strength material or a high-tensile-strength but expensive material.

[0006] To solve the above-mentioned problems, Registered Patent No. 10-1464466 (February 10, 2014, Two-color polypropylene band and apparatus for manufacturing the same) discloses a two-color polypropylene band and an apparatus for manufacturing the same that improve process efficiency by forming a PP band having different colors on both sides and allows the user to select and use the desired color. Prior art literature

[0008] Korean Registered Patent Publication No. 10-1464466 (February 10, 2014, Two-color polypropylene band and apparatus for manufacturing the same) The problem to be solved

[0009] The present invention aims to solve the above problems by providing a three-layer extrusion nozzle for a device that produces a packaging band, wherein the surface layer is made of a material with high tensile strength and good quality, while the middle layer is made of a material with relatively low tensile strength and quality but is inexpensive. means of solving the problem

[0011] It may include a first input block to which raw material of the central layer is supplied, a second input block to which raw material of the surface layer is supplied, and a discharge unit that discharges the raw material supplied from the first input block and the second input block into a band of three layers.

[0012] In addition, the second input block may include a surface layer input port into which raw materials of the surface layer are introduced, and an input raw material separation groove into which raw materials introduced from the surface layer input port are separated.

[0013] In addition, the discharge unit may include a first block through which raw materials forming a band flow, a second block coupled to the first block and forming a symmetrical structure with the first block, and a diaphragm coupled to the first block or the second block to form a band with a three-layer structure.

[0014] In addition, the first block may include a first block raw material separation groove that separates the supplied raw material by forming a hole in contact with the input raw material separation groove, a first block raw material supply hole through which the raw material separated in the first block raw material separation groove flows, and a first block discharge groove through which the raw material passing through the first block raw material supply hole is discharged.

[0015] Additionally, the second block may include a second block raw material separation groove that separates the supplied raw material by forming a hole in contact with the input raw material separation groove, a second block raw material supply hole through which the raw material separated in the second block raw material separation groove flows, and a second block discharge groove through which the raw material passing through the second block raw material supply hole is discharged.

[0016] Additionally, the second input block may further include a first filter comprising a replacement filter that filters impurities of raw materials flowing into the second input block, a first filter frame on which the replacement filter is mounted, and a second filter frame combined with the first filter frame to fix the replacement filter.

[0017] In addition, the first block may further include a first block heat supply hole into which a heating rod can be inserted to melt raw materials, and the second block may further include a second block heat supply hole into which a heating rod can be inserted to melt raw materials.

[0018] In addition, the second block may further include a second filter screen for filtering impurities of the raw material flowing into the central layer. Effects of the invention

[0020] The three-layer structure discharge nozzle of the device for producing a packaging band according to an embodiment of the present invention can form a three-layer structure band.

[0021] Therefore, using high-quality materials in the surface layer can improve functional qualities such as tensile strength and aesthetic quality, while using inexpensive materials in the middle layer can reduce costs. Brief explanation of the drawing

[0023] FIG. 1 is a perspective view of a three-layer structure discharge nozzle of a device for producing a packaging band according to an embodiment of the present invention. FIG. 2 is a perspective view of the first input block. Figure 3 (a) is a perspective view of the second input block, and (b) is a rotated perspective view of (a). Figure 4 is a perspective view of the discharge section. Figure 5 is an exploded view of the discharge section. Figure 6 (a) is a perspective view of the first block, and (b) is a rotated perspective view of (a). Figure 7 (a) is a perspective view of the second block, and (b) is a rotated perspective view of (a). Figure 8 (a) is a perspective view of the diaphragm, and (b) is a rotated perspective view of (a). FIG. 9 is a vertical cross-sectional view of a three-layer structure discharge nozzle of a device for producing a packaging band according to an embodiment of the present invention. FIG. 10 is a horizontal cross-sectional view of a three-layer structure discharge nozzle of a device for producing a packaging band according to an embodiment of the present invention. FIG. 11 is a cross-sectional view showing a band being discharged from a three-layer structure discharge nozzle of a device for producing a packaging band according to an embodiment of the present invention. FIG. 12 is a cross-sectional view of a first block with a first block heat supply hole added according to another embodiment of the present invention. FIG. 13 is a cross-sectional view of a second block with a second block heat supply hole added to it according to another embodiment of the present invention. FIG. 14 is a perspective view of a three-layer structure discharge nozzle of a device for producing a packaging band according to another embodiment of the present invention, with a first filter and a second filter added. Fig. 15 is a partial view of Fig. 14. FIG. 16 is a partially disassembled perspective view according to another embodiment of the replacement strainer shown in FIG. 15. Figure 17 (a) is a perspective view according to another embodiment of a replacement filter, and (b) is a perspective view of the replacement filter of (a) pushed down. Specific details for implementing the invention

[0024] The following description of the present invention with reference to the drawings is not limited to specific embodiments and may be subject to various modifications and various embodiments. Furthermore, it should be understood that the content described below includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the present invention.

[0025] In the following description, terms such as "first," "second," etc., are used to describe various components and are not limited in their meaning; they are used solely for the purpose of distinguishing one component from another.

[0026] The same reference numbers used throughout this specification represent the same components.

[0027] The singular expressions used in the present invention include the plural expressions unless the context clearly indicates otherwise. Furthermore, terms such as "comprising," "having," or "having" described below should be interpreted as indicating 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.

[0028] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the present invention pertains. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an ideal or overly formal sense unless explicitly defined in this application.

[0029] 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.

[0030] Hereinafter, a three-layer structure discharge nozzle of a device for producing a packaging band according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 17.

[0032] FIG. 1 is a perspective view of a three-layer structure discharge nozzle of a device for producing a packaging band according to an embodiment of the present invention, FIG. 2 is a perspective view of a first input block, FIG. 3 (a) is a perspective view of a second input block and (b) is a rotated perspective view of (a), FIG. 4 is a perspective view of a discharge section, FIG. 5 is an exploded perspective view of a discharge section, FIG. 6 (a) is a perspective view of a first block and (b) is a rotated perspective view of (a), FIG. 7 (a) is a perspective view of a second block and (b) is a rotated perspective view of (a), FIG. 8 (a) is a perspective view of a diaphragm and (b) is a rotated perspective view of (a), FIG. 9 is a vertical cross-sectional view of a three-layer structure discharge nozzle of a device for producing a packaging band according to an embodiment of the present invention, and FIG. 10 is a three-layer structure discharge nozzle of a device for producing a packaging band according to an embodiment of the present invention FIG. 11 is a cross-sectional view showing a band being discharged from a three-layer structure discharge nozzle of a device for producing a packaging band according to an embodiment of the present invention.

[0034] First, referring to FIGS. 1 to 3, the three-layer structure discharge nozzle (1) of the device for producing a packaging band according to an embodiment of the present invention may include a first input block (100), a second input block (200), and a discharge section (300).

[0035] The first input block (100) is used to input raw materials that form the central layer of the band, and the raw materials can be input through the central layer input port (110).

[0036] The second input block (200) is used to input raw materials that form the surface layer of the band, and the raw materials can be input through the surface layer input port (210).

[0037] In addition, the raw material passing through the surface layer inlet (210) can pass through the input raw material separation groove (220) that splits from the surface layer inlet (210) and flow to both sides.

[0038] The first input block (100) and the second input block (200) may each be bolted to the discharge section (300), but may also be joined by various methods such as welding, and the joining of all components to be described below is also the same.

[0039] In addition, the central layer inlet (110) and the surface layer inlet (210) can be connected to a pipe or funnel to allow raw materials to be introduced.

[0041] Referring to FIGS. 4 to 8, the discharge unit (300) discharges raw materials introduced from the first input block (100) and the second input block (200), and may include a first block (310), a second block (320), and a diaphragm (330).

[0042] The first block (310) may be composed of a first block raw material separation groove (311) into which raw material introduced from the surface layer inlet (210) is separated, a first block raw material supply hole (312) into which raw material separated from the first block raw material separation groove (311) is introduced into the first block (310), and a first block discharge groove (313) into which the introduced central layer raw material and surface layer raw material are discharged.

[0043] The second block (320) may be composed of a second block raw material separation groove (321) into which raw material introduced from a surface layer inlet (210), which is a component that performs the same function as the first block (310), a second block raw material supply hole (322) into which raw material separated from the second block raw material separation groove (321) is introduced into the second block (320), and a second block discharge groove (323) into which the introduced central layer raw material and surface layer raw material are discharged, and may additionally include a second block central raw material supply hole (324) into which raw material passing through the central layer inlet (110) flows.

[0044] The first block (310) and the second block (320) have a structure that is symmetrical to each other, and can be combined so that the first block discharge groove (313) and the second block discharge groove (323) are formed inside.

[0045] Therefore, the first block raw material separation groove (311) and the second block raw material separation groove (321) can form a single connected groove.

[0046] The partition wall (330) can be connected to the first block discharge groove (313) and the second block discharge groove (323), respectively, so that the surface layer raw material and the center layer raw material are discharged separately.

[0048] Referring to FIGS. 9 to 11, it can be seen that raw materials flow into the discharge section (300) and form a central layer and a surface layer.

[0049] First, referring to FIG. 9, the central layer raw material is introduced into the central layer inlet (110), passes through the second block central raw material supply hole (324), and then flows into the space formed by combining the first block discharge groove (313) and the second block discharge groove (323).

[0050] And it can be discharged between the diaphragm (330) combined with the first block (310) and the diaphragm (330) combined with the second block (320) to form a central layer.

[0051] Referring to FIG. 10, the surface layer raw material introduced through the surface layer inlet (210) can flow into the space formed by combining the input raw material separation groove (220), the first block raw material separation groove (311), and the second block raw material separation groove (321).

[0052] And the surface layer raw material flows into the first block raw material supply hole (312) and the second block raw material supply hole (322), respectively, and is discharged into the first block discharge groove (313) and the second block discharge groove (323) to form the surface layer of the band.

[0053] Accordingly, as shown in FIG. 11, the three-layer structure discharge nozzle (1) of the device for producing packaging bands of the present invention can discharge a three-layer structure band in which a central layer is formed between two surface layers.

[0055] FIG. 12 is a cross-sectional view in which a first block heat supply hole is added to a first block according to another embodiment of the present invention, and FIG. 13 is a cross-sectional view in which a second block heat supply hole is added to a second block according to another embodiment of the present invention.

[0056] Here, the three-layer structure discharge nozzle (1) of the device for producing a packaging band according to another embodiment of the present invention, excluding the first block heat supply hole (314) and the second block heat supply hole (325), may be the same as the three-layer structure discharge nozzle (1) of the device for producing a packaging band according to an embodiment of the present invention.

[0057] Referring to FIG. 12, the first block (310) may further include a first block heat supply hole (314), and referring to FIG. 13, the second block (320) may further include a second block heat supply hole (325).

[0058] Accordingly, by inserting a heating wire or heating rod into the first block heat supply hole (314) and the second block heat supply hole (325), the core layer raw material and the surface layer raw material can be made to flow smoothly without hardening.

[0059] In addition, as shown in FIGS. 12 and 13, the core layer raw material and the surface layer raw material can be prevented from hardening by providing a heat supply hole, but the core layer raw material and the surface layer raw material can be prevented from hardening by installing a heat supply device (not shown) such as a heating wire or a heating pack that wraps around the three-layer structure discharge nozzle (1) of the device for producing packaging bands.

[0061] FIG. 14 is a perspective view in which a first filter and a second filter are added to a three-layer structure discharge nozzle (1) of a device for producing a packaging band according to another embodiment of the present invention, FIG. 15 is a partially exploded perspective view of FIG. 14, FIG. 16 is a partially exploded perspective view according to another embodiment of the replacement filter shown in FIG. 15, FIG. 17 (a) is a perspective view according to another embodiment of the replacement filter, and FIG. 17 (b) is a perspective view in which the replacement filter of (a) is pushed down.

[0062] Here, the three-layer structure discharge nozzle (1) of the device for producing a packaging band according to another embodiment of the present invention, excluding the first filter screen (230) and the second filter screen (326), may be the same as the three-layer structure discharge nozzle (1) of the device for producing a packaging band according to an embodiment of the present invention.

[0063] Referring to FIGS. 14 and 15, the second input block (200) may further include a first filter screen (230), and the second block (320) may further include a second filter screen (326).

[0064] Recycled materials are primarily used as raw materials for packaging bands, but liquid recycled materials contain large amounts of impurities and undissolved lumps, which frequently causes nozzle clogging.

[0065] Therefore, to prevent this, a first filter (230) and a second filter (326) composed of a replacement filter (231), a first filter frame (232), and a second filter frame (233) are further included to filter out impurities and lumps.

[0066] The replacement strainer (231) is mounted on the first strainer frame (232) which has a groove, and the second strainer frame (233) can be attached to the first strainer frame (232) so that the replacement strainer (231) can be fixed.

[0067] In addition, the replacement filter (231) and the second filter (326) can be attached and detached in a sliding manner without disassembling the three-layer structure discharge nozzle (1) of the device for producing packaging bands.

[0068] Referring to FIGS. 16 and 17, the replacement strainer (231) may be formed with the strainer in two parts.

[0069] Accordingly, after using one side of the replacement filter (231) for a certain period of time, the replacement filter (231) is pushed in a sliding manner to attach the other side filter, and the one side filter that has finished use can be cleaned while the other side filter is attached.

[0070] In this way, the replacement filter (231) can be conveniently used without removing it from the three-layer structure discharge nozzle (1) of the device that produces the packaging band and then reattaching it.

[0072] Although embodiments of the present invention have been described above with reference to the attached drawings, those skilled in the art will understand that the present invention can be implemented in other specific forms without changing the technical concept or essential features of the invention. Accordingly, the embodiments described above are illustrative in all respects and are not restrictive. Explanation of the symbols

[0075] 1: 3-layer discharge nozzle of a packaging band production device 100: First input block 110: Central layer inlet 200: Second input block 210: Surface layer inlet 220: Input material separation groove 230: First strainer 231: Replacement strainer 232: First filtrator 233: Second filtrator 300: Discharge section 310: Block 1 311: 1st Block Raw Material Separation Home 312: Block 1 Raw Material Supply Hole 313: 1st block discharge groove 314: Block 1 heat supply hole 320: Block 2 321: 2nd Block Raw Material Separation Home 322: Block 2 Raw Material Supply Hole 323: 2nd block discharge groove 324: Block 2 Central Raw Material Supply Hall 325: Block 2 heat supply hole 326: Second filter 330: Septum 340: Heat supply unit

Claims

Claim 1 A first input block into which raw material of a central layer is supplied through a central layer input port; a second input block into which raw material of a surface layer is supplied; and a discharge unit for discharging raw material supplied from the first input block and the second input block into a band having a three-layer structure, wherein the second input block includes a surface layer input port into which raw material of a surface layer is introduced; and an input raw material separation groove into which raw material introduced from the surface layer input port is separated, and the discharge unit includes a first block through which raw material forming a band flows; and a second block coupled to the first block and forming a symmetrical structure with respect to the first block. A three-layer discharge nozzle of a device for producing a packaging band, comprising a diaphragm that forms a three-layer band by combining with the first block or the second block, wherein the first block includes a first block raw material separation groove that forms a hole in contact with an input raw material separation groove to separate the supplied raw material; a first block raw material supply hole through which the raw material separated in the first block raw material separation groove flows; and a first block discharge groove through which the raw material passing through the first block raw material supply hole is discharged, wherein the second block includes a second block raw material separation groove that forms a hole in contact with an input raw material separation groove to separate the supplied raw material; a second block raw material supply hole through which the raw material separated in the second block raw material separation groove flows; and a second block discharge groove through which the raw material passing through the second block raw material supply hole is discharged, wherein the raw material of the central layer supplied from the first input block passes through the second block central raw material supply hole of the second block and is supplied between the diaphragms. Claim 2 delete Claim 3 delete Claim 4 delete Claim 5 delete Claim 6 A three-layer structure discharge nozzle of a device for producing a packaging band according to claim 1, wherein the second input block further comprises: a replacement filter screen for filtering impurities of raw materials flowing into the second input block; a first filter frame on which the replacement filter screen is mounted; and a first filter screen including a second filter frame coupled to the first filter frame to fix the replacement filter screen. Claim 7 A three-layer structure discharge nozzle of a device for producing a packaging band according to claim 1, wherein the first block further includes a first block heat supply hole into which a heating rod can be inserted to melt raw materials, and the second block further includes a second block heat supply hole into which a heating rod can be inserted to melt raw materials. Claim 8 In claim 1, the second block further comprises a second filter screen for filtering impurities of raw materials flowing into the central layer, a three-layer structure discharge nozzle of a device for producing packaging bands.

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