Bending device that improves the bending quality of acrylic plate

Abstract

The present invention discloses a bending device that improves the bending quality of an acrylic sheet, comprising a table having a top plate and legs, a support installed on the top plate to support the bottom surface of the acrylic sheet during bending, a support member installed on the upper surface of the table spaced apart from the support member to support the end surface of the acrylic sheet during bending, and a heating element installed between the support member and the support member to heat the bending portion of the acrylic sheet to assist in bending.

Description

Technology Field

[0001] The embodiments of the present disclosure relate to a bending device for easily bending an acrylic sheet. Background Technology

[0002] Generally, acrylic sheets are formed using acrylic resin, which is a polymer of acrylic acid or acrylic acid derivatives, and possess a relatively high hardness.

[0003] Conventionally, in order to bend acrylic sheet materials with relatively high hardness into a desired shape, there have been methods of heating the acrylic sheet by placing it in hot water or heating the bending part to a certain temperature using a heated wire to bend it.

[0004] However, this method has inconveniences in use, and in particular, there was a problem in that it was difficult to obtain the desired bending angle and width.

[0005] In other words, when heating an acrylic sheet by placing it in hot water, the entire acrylic sheet must be submerged in water, making localized heating of the acrylic sheet impossible. Consequently, there is a problem in that it is difficult to obtain the desired bending angle and width.

[0006] In addition, when using heated wires, there was a risk of the worker being burned by the wires, and there was a problem in that it was difficult to accurately heat the bending area of ​​the acrylic plate depending on the worker's level of skill. Prior art literature

[0007] Republic of Korea Utility Model Registration No. 20-0248507 The problem to be solved

[0008] The embodiments of the present disclosure are intended to provide a bending device for acrylic sheets that improves upon the aforementioned problems. By configuring a base, a heating element, and a support member on a table into a single device, the bending device improves the bending quality of acrylic sheets, enabling precise bending of the acrylic sheets at specific locations.

[0009] In addition, another objective of the present invention is to a bending device that improves the bending quality of an acrylic sheet by adjusting the height of a heating element according to the bending of various parts of the acrylic sheet and the degree of bending.

[0010] Another objective of the present invention is to provide a bending device that improves the bending quality of an acrylic sheet, wherein the position of the support can be adjusted according to the size of the acrylic sheet.

[0011] The technical problems to be solved in the embodiments of the present disclosure are not limited to those mentioned above, and other unmentioned technical problems may be considered by those skilled in the art from the various embodiments described below. means of solving the problem

[0012] A bending device for improving the bending quality of an acrylic sheet according to the concept of the present invention comprises a table having a top plate and legs, a support installed on the top plate to support the bottom surface of the acrylic sheet during bending, a support member installed on the upper surface of the table spaced apart from the support member to support the end surface of the acrylic sheet during bending, and a heating element installed between the support member and the support member to heat the bending portion of the acrylic sheet to assist in bending.

[0013] According to one embodiment of the present invention, at least one heating element may be installed.

[0014] According to one embodiment of the present invention, the heating element comprises: a first mounting block having a pair of first insertion holes formed vertically inwardly and supported on the inner bottom surface of the top plate; a second mounting block having a second insertion hole formed facing the first mounting block on the same line; a pair of first column bodies installed in each of the first insertion holes of the first mounting block to receive up-and-down guidance and having first gear teeth continuously formed along a vertical direction on one facing surface; a pair of second column bodies installed in each of the second insertion holes of the second mounting block to receive up-and-down guidance and having second gear teeth continuously formed along a vertical direction on one facing surface; a heating element consisting of a wire installed to connect the first column body and the second column body and generating heat upon application of power; a first gear installed between the first gear teeth and a second gear installed between the second gear teeth; and the first column body and by the rotational operation of a knob connecting the first gear and the second gear and protruding from the top plate It may include a gear rod that adjusts the height of the heating wire installed on the second column body to be the same or different.

[0015] According to one embodiment of the present invention, the distance of the support member from the base can be adjusted by a position adjustment means according to the size of the acrylic plate.

[0016] According to one embodiment of the present invention, the position adjustment means may include a support body constituting the support member; a plurality of support guide projections integrally formed protruding from the bottom surface of the support body and moving along a guide slot formed on the top plate; a support gear rod connecting the plurality of support guide projections in a straight line, having a support gear formed in close proximity to each support guide projection and a support knob protruding to the top plate installed thereon; and a spur gear portion fixedly installed on the inner bottom surface of the top plate on the bottom surface of the support gear rod, and meshing with the support gear to horizontally move the support body along the guide slot by the rotational operation of the support knob. Effects of the invention

[0017] In the bending device for improving the bending quality of acrylic sheets according to the present invention, by configuring a base, a heating element, and a support on a table into a single device, efficient bending of the acrylic sheet at precise locations is possible, and the working time is reduced.

[0018] In addition, the height of the heating element can be adjusted, and the position of the support can be adjusted according to the size of the acrylic sheet, which has the effect of enabling bending of acrylic sheets in various parts. Brief explanation of the drawing

[0019] FIG. 1 is a perspective view of a bending device that improves the bending quality of an acrylic sheet according to one embodiment of the present disclosure, and FIG. 2 is an excerpted perspective view showing a heating element in a bending device that improves the bending quality of an acrylic sheet according to one embodiment of the present disclosure, and FIG. 3 is a partial cross-sectional view showing the height of the heating element in FIG. 2, and FIG. 4 is an excerpted perspective view showing a support in a bending device in which the bending quality of an acrylic sheet is improved according to one embodiment of the present disclosure, and FIG. 5 is a cross-sectional view showing the configuration of a support in a bending device in which the bending quality of an acrylic sheet is improved according to one embodiment of the present disclosure, and FIG. 6 is a cross-sectional view showing a fixed body installed on a support in another embodiment of FIG. 5, and FIG. 7 is a drawing showing an acrylic sheet being bent by a bending device that improves the bending quality of an acrylic sheet according to one embodiment of the present disclosure. Specific details for implementing the invention

[0020] The embodiments described in this specification and the configurations illustrated in the drawings are merely preferred examples of the disclosed invention, and various modifications that may replace the embodiments and drawings of this specification may exist at the time of filing this application.

[0021] Identical reference numbers or symbols in each drawing of this specification represent parts or components that perform substantially the same function. The shapes and sizes of the elements in the drawings may be exaggerated for clarity.

[0022] The terms used herein are for describing embodiments and are not intended to limit or / or restrict the disclosed 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 presence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and do not preclude the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0023] Terms including ordinal numbers, such as “first,” “second,” etc., as used herein may be used to describe various components, but said components are not limited by said terms, and said terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component. The term “and / or” includes a combination of a plurality of related described items or any one of a plurality of related described items.

[0024] Terms such as "...part," "...unit," and "module" as used in the specification refer to a unit that processes at least one function or operation, which may be implemented in hardware, software, or a combination of hardware and software. Additionally, "one (a or an)," "one," "the," and similar related terms may be used in the context describing various embodiments (particularly in the context of the following claims) in both singular and plural forms, unless otherwise indicated in the specification or clearly contradicted by the context.

[0025] Terms such as "top," "bottom," "front," and "rear" used below are defined based on the drawings, and the shape and location of each component are not limited by these terms.

[0026] Hereinafter, embodiments according to the present invention will be described in detail with reference to the attached drawings.

[0027] Here, FIG. 1 is a perspective view of a bending device that improves the bending quality of an acrylic sheet according to one embodiment of the present disclosure, FIG. 2 is an excerpted perspective view showing a heating element in a bending device that improves the bending quality of an acrylic sheet according to one embodiment of the present disclosure, FIG. 3 is a partial cross-sectional view showing the height of the heating element in FIG. 2, FIG. 4 is an excerpted perspective view showing a support member in a bending device that improves the bending quality of an acrylic sheet according to one embodiment of the present disclosure, FIG. 5 is a cross-sectional view showing the configuration of a support member in a bending device that improves the bending quality of an acrylic sheet according to one embodiment of the present disclosure, FIG. 6 is a cross-sectional view showing a fixing body installed on a support member in FIG. 5 as another embodiment, FIG. 7 is a drawing showing an acrylic sheet being bent by a bending device that improves the bending quality of an acrylic sheet according to one embodiment of the present disclosure.

[0028] A bending device (100) that improves the bending quality of an acrylic sheet according to one embodiment of the present disclosure, as shown in FIG. 1, largely comprises a table (110), a support (120) that supports the bottom surface of an acrylic sheet (10), a support (300) that supports the end surface of an acrylic sheet (10) during bending, and a heating element (200) that heats the bending portion of the acrylic sheet (10) to assist in bending.

[0029] First, the acrylic sheet material in the present invention is classified into acrylic resins such as polymethyl methacrylate (PMMA), polyacrylonitrile (PAN), and polyacrylic acid (PAA). PMMA is a type of plastic resin that is several times stronger than glass. It is mainly processed into the form of a sheet and is a type of non-toxic plastic that is colorless and has excellent transparency.

[0030] The present invention relates to a device for bending a relatively hard acrylic sheet (10: shown in FIG. 7) as described above, wherein a groove of a certain depth is formed in advance in the bending portion (12: shown in FIG. 7), and the bending is performed by applying heat to the formed groove.

[0031] Referring again to FIG. 1, the table (110) may be composed of a flat top plate (112) having a certain area and legs (114) installed on the corners of the top plate (112).

[0032] Although not shown on the bridge (114), wheels may be installed to allow movement.

[0033] And the top plate (112) has a space formed inside so that parts for moving some components of the heating element (200) and the support (300) can be installed.

[0034] The top plate (112) can be made of a material that is relatively resistant to heat.

[0035] A support (120) that supports the bottom surface of the acrylic plate (10) when bending can be installed on the top plate (112).

[0036] The base (120) is installed with a certain area and height to support the acrylic plate (10).

[0037] The above-mentioned base (120) can be installed with a width equal to or slightly smaller than the width of the top plate (112).

[0038] The base (120) can be manufactured and installed either integrally with or separately from the top plate (112).

[0039] And a support (300) can be installed on the upper surface of the table (110) spaced apart from the base (120).

[0040] The support (300) supports the end surface of the acrylic plate (10) during bending.

[0042] That is, the end surface of the acrylic plate (10) is supported on the support (300), and bending can be performed while the position is fixed without being pushed by the user's force.

[0043] The above support (300) has a certain height and may be the same width as or slightly smaller than the width of the top plate (112).

[0044] Here, the distance between the support member (300) and the base (120) can be adjusted using a position adjustment means according to the size or bending portion (12) of the acrylic plate (10).

[0045] The position adjustment means is explained in more detail below.

[0046] Furthermore, a heating element (200) is installed between the support (300) and the base (120) to effectively apply heat to the bending portion (12) of the acrylic plate (10) to assist in bending.

[0047] The above heating element (200) can be installed in at least one area that is open to a certain area on the top plate (112).

[0048] The heating element (200) is explained in more detail with reference to FIG. 2 and FIG. 3.

[0049] The heating element (200) may have a first mounting block (210) installed on the bottom surface of the internal space of the top plate (112).

[0050] The first mounting block (210) is rectangular, with its bottom surface installed on the inner bottom surface of the top plate (112), and a pair of first insertion holes (212) that extend vertically inward can be formed side by side on its top surface.

[0051] The first insertion hole (212) is open upward.

[0052] And a first column body (214) can be installed vertically in each first insertion hole (212).

[0053] A portion of the lower side of the first column body (214) is positioned in the first insertion hole (212) to receive guidance for raising and lowering, and a first heating section (214a) with a reduced area is further formed at the top, and electrical wires are wired to the first heating section (214a) to generate heat using the heating wire (230) described below.

[0054] In addition, a first gear tooth (214b) may be continuously formed along the vertical direction on one side of the first column body (214).

[0055] That is, it is preferable that the first gear tooth (214b) be formed on the facing side of the first column body (214) installed in each of the first insertion holes (212).

[0056] In this way, a second mounting block (220) can be installed on the bottom surface of the internal space of the top plate (112) facing the first mounting block (210) on the same line.

[0057] The second mounting block (220) may also have a pair of second insertion holes (222) formed side by side, which are vertically connected to the inside with the same shape as the first mounting block (210).

[0058] A second column body (224) can also be installed vertically in each second insertion hole (222).

[0059] A portion of the lower side of the second column body (224) is positioned in the second insertion hole (222) to receive guidance for raising and lowering, and a second heating section (224a) with a reduced area is further formed at the top, and electrical wires are wired to the second heating section (224a) to generate heat using the heating wire (230) described below.

[0060] If electrical wiring is provided for the first heating element (214a) described above, electrical wiring is not required for the second heating element (224a).

[0061] On one side of the second column body (224), a second gear tooth (224b) can be continuously formed along the vertical direction.

[0062] It is preferable that a second gear tooth (224b) is formed on a facing surface of the second column body (224) installed in each of the second insertion holes (222).

[0063] And a heating wire (230) consisting of a conductor that generates heat upon application of power is installed between the first heating element (214a) and the second heating element (224a) facing each other in the same line, and the same heating wire (230) can also be installed between the first heating element (214a) and the second heating element (224a) that are parallel in this way.

[0064] A gear rod (240) is installed between the first column body (214) and the second column body (224) facing each other, and one end of the gear rod (240) protrudes to one side of the top plate (112) to form a knob (246).

[0065] And on the gear rod (240), a first gear (242) is installed to mesh between the first gear teeth (214b) formed on the first column body (214), and a second gear (244) can be installed to mesh with the second gear teeth (224b) of the second column body (224).

[0066] Therefore, by rotating the knob (246), the first gear (242) and the second gear (244), which are installed as a single unit, rotate, and the height of the first column body (214) and the second column body (224) facing each other can be adjusted to be the same or different.

[0067] That is, the height of the heating element (230) can be adjusted.

[0069] And, by means of the aforementioned position adjustment means, the distance between the support (300) and the base (120) can be adjusted according to the size or bending portion (12) of the acrylic plate (10).

[0070] The position adjustment means is explained with reference to FIG. 4 or FIG. 5.

[0071] As shown in FIG. 4, the support member (300) may be composed of a support body (302) and a plurality of support guide protrusions (304) that are integrally formed and spaced apart from the bottom surface of the support body (302).

[0072] The support body (302) is a part that is positioned on the top plate (112) and supports the end surface of the acrylic plate (10), and the support guide projection (304) is a part that moves along the guide slot (112a) formed in the top plate (112) of FIG. 1.

[0073] It is preferable that approximately three support guide protrusions (304) be formed, and it may also be preferable that guide slots (112a) be formed corresponding to the support guide protrusions (304).

[0074] In addition, a support gear rod (310) is installed to connect to the support guide projection (304) and to be rotatable, and a support knob (314) protruding to one side of the top plate (112) may be installed at the end of the support gear rod (310).

[0075] A support gear (312) may be installed in the support gear rod (310) in close proximity to each support guide projection (304).

[0076] And a spur gear (320) can be installed so that it is fixedly installed on the inner bottom surface of the top plate (112) and each support gear (312) meshes with it.

[0077] The above spur gear (320) may be partially installed corresponding to each support gear (312) or installed as an area connecting each support guide projection (304).

[0078] Accordingly, the position of the support body (302) can be adjusted by horizontal movement along the guide slot (112a) by each support gear (312) engaged with the spur gear (320) through the rotational operation of the support knob (314).

[0080] The operation of a bending device that improves the bending quality of an acrylic sheet according to one embodiment of the configuration of the present invention as described above will be explained with reference to FIG. 7.

[0081] An acrylic sheet (10) requiring bending is placed on the top plate (112) of a table (110) and the bending operation is performed.

[0082] The bending portion (12) is aligned with the heating wire (230) of the heating wire portion (200), and at this time, a portion of the bottom surface of the acrylic plate (10) is supported by the base (120), and the other end can be supported by the support (300).

[0083] Next, the heating wire (230) generates heat according to the electrical application, and the heated heating wire (230) heats the bending part (12) for a preset time.

[0084] The heated acrylic plate (10) can be unloaded, and the worker can easily bend the heated bending part (12).

[0085] Although the bent acrylic sheet (10) is not shown, the bent acrylic sheet (10) is cooled in a separate device to maintain its bent shape.

[0086] Meanwhile, if the thickness of the acrylic plate (10) or the bending part (12) is one place or the bending part (12) is inclined, it may be necessary to adjust the height of the heating wire (230) of the heating wire part (200).

[0087] When the first gear (242) is engaged with the first gear tooth (214b) on the gear rod (240) and the second gear (244) is engaged with the second gear tooth (224b) at the same time, and the knob (246) protruding from one side of the top plate (112) is rotated, the first gear (242) and the second gear (244) rotate, and the heights of the first column body (214) and the second column body (224) facing each other can be adjusted to be the same or different.

[0088] Also, since the area of ​​the acrylic plate (10) extending from the bending part (12) may vary from product to product, it is necessary to adjust the position of the support (300).

[0089] The position of the support member (300) can be adjusted by rotating the support knob (314), which causes each support gear (312) installed on the support gear rod (310) to rotate along the meshed spur gear (320), and as the support gear (312) rotates, the support guide projection (304) and the support body (302) on the support gear rod (310) move forward and backward in a horizontal direction along the guide slot (112a) formed in the top plate (112), thereby adjusting the position.

[0091] Meanwhile, in another embodiment of the present invention, a fixing body (400) capable of preventing the support (300) from sliding on the rear side of the support (300) may be further installed.

[0092] As shown in FIG. 6, the fixed body (400) is formed in a plate shape and may be composed of a first vertical surface (402) to be in close contact with the rear surface of the support (300), a horizontal surface (404) that is integrally connected from the first vertical surface (402) and is in close contact with the top plate (112), and a second vertical surface (406) that is integrally connected from the horizontal surface (404) and faces the rear surface of the top plate (112).

[0093] And a bolt (410) is installed through the second vertical surface (406) to support the rear surface of the top plate (112).

[0094] Here, the bolt (410) can be formed with a length that takes into account the support (300) moving along the guide slot (112a) of the top plate (112).

[0095] That is, as the support (300) moves backward, the second vertical surface (406) can be spaced apart from the rear surface of the top plate (112), and a bolt (410) of a relatively long length may be preferred to cover the spaced-out range.

[0096] As described above, by configuring the base, heating element, and support into a single device on the table, efficient bending of the acrylic sheet at precise locations is possible, and the working time can be reduced.

[0097] In addition, the height of the heating element is adjustable, and the position of the support can be adjusted according to the size of the acrylic sheet, allowing for the bending of acrylic sheets in various areas.

[0098] Specific embodiments have been illustrated and described above. However, the invention is not limited to the embodiments described above, and those skilled in the art may make various modifications without departing from the essence of the technical concept of the invention as described in the following claims. Explanation of the symbols

[0099] 10: Acrylic sheet 12: Bending part 100 : Bending device that improves the bending quality of acrylic sheets 110 : Table 112 : Top plate 112a : Guide slot 114 : Legs 120 : Base 200 : Heating element 210: First mounting block 212: First insertion hole 214: First column body 214a: First heating element 214b : 1st gear tooth 220 : 2nd mounting block 222 : Second insertion hole 224 : Second column body 224a: Second heating element 224b: Second gear tooth 230 : Heated seat 240 : Gear lever 242: 1st gear 244: 2nd gear 246 : Knob 300 : Support 302 : Support body 304 : Support guide projection 310 : Support gear rod 312 : Support gear 314 : Support knob 320 : Spur gear 400: Fixed body 402: First vertical surface 404: Horizontal plane 406: Second vertical plane 410 : Bolt

Claims

Claim 1 The apparatus comprises a table having a top plate and legs, a support installed on the top plate to support the bottom surface of an acrylic plate during bending, a support member installed on the upper surface of the table spaced apart from the support member to support the end surface of the acrylic plate during bending, and a heating element installed between the support member and the support member to heat the bending portion of the acrylic plate to assist in bending, wherein the heating element comprises a first mounting block supported on the inner bottom surface of the top plate and having a pair of first insertion holes formed vertically inwardly, a second mounting block having a second insertion hole formed facing the first mounting block on the same line, a pair of first column bodies installed in each of the first insertion holes of the first mounting block to receive up-and-down guidance and having first gear teeth continuously formed along the vertical direction on the facing surface, a pair of second column bodies installed in each of the second insertion holes of the second mounting block to receive up-and-down guidance and having second gear teeth continuously formed along the vertical direction on the facing surface, and the first column body and the It comprises a heating wire consisting of a conductor installed to connect a second column body and generating heat upon the application of power, a first gear installed between the first gear teeth and a second gear installed between the second gear teeth, and a gear rod connecting the first gear and the second gear and adjusting the height of the heating wire installed on the first column body and the second column body to be the same or different by the rotational operation of a knob protruding from the top plate, wherein the support member adjusts the distance from the base plate according to the size of the acrylic plate material using a position adjustment means, and the position adjustment means comprises a support body constituting the support member, a plurality of support guide protrusions integrally formed protruding from the bottom surface of the support body spaced apart and moving along a guide slot formed on the top plate, and a support gear rod connecting the plurality of support guide protrusions in the same line, wherein a support gear is formed in close proximity to each support guide protrusion and a support knob protruding from the top plate is installed.A bending device for improving the bending quality of an acrylic sheet, comprising: a spur gear unit fixedly installed on the inner bottom surface of the upper plate on the bottom surface of the support gear rod and meshing with the support gear to horizontally move the support body along the guide slot by the rotational operation of the support knob.

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