Box jointing device using sewing stitching

Abstract

The present invention relates to a box joining device using sewing stitching, which is structurally improved to fold the box cutting sheet and bind the overlapping part by sewing, thereby replacing the metal stitching pins and adhesives used in box manufacturing, thus increasing the efficiency of recycling waste boxes, and in particular, the main components include a lower bed (10), an upper bed (20), and an upper thread supply unit (30) so that the sewing precision is improved and the overlapping part can be bound with various types of stitches by synchronizing the spool member placed in a narrow space with a servo motor.

Description

Technology Field

[0001] The present invention relates to a box joining device using sewing stitching, and more specifically, to a box joining device using sewing stitching in which the structure is improved so that the overlapping parts are joined by a sewing method by folding the box cutting sheet, thereby replacing the metal stitching pins and adhesives used in box manufacturing, and thus increasing the efficiency of recycling waste boxes, and in particular, by synchronizing the spool member placed in a narrow space with a servo motor, the sewing precision is improved and the overlapping parts can be joined with various types of stitches. Background Technology

[0002] Boxes made by folding corrugated cardboard are widely used to package and transport products.

[0003] These corrugated cardboard boxes are formed by folding corrugated cardboard sheets cut from a pattern, joining the overlapping parts, unfolding them into a rectangle, and then folding the top and bottom to finish, thereby creating a hollow box. As the manufacturing process of these boxes relies mostly on manual labor, there is a situation where productivity is reduced and manufacturing costs are increased.

[0004] To solve these problems, Registered Patent No. 10-2523334 comprises: a paper cutting unit that cuts the paper according to the molding information of the product, processes longitudinal and transverse folding lines to form first to fifth planar sections, and molds the cut paper with processed wing sections; a folding unit that applies adhesive to wing sections at a set position while folding the cut paper during transport; and a product input unit that 3D scans the molding information of the product and feeds the scanned product into the cut paper being transported to the folding unit, wherein the folding unit comprises: a folding section disposed on the transport path of the cut paper and sequentially folding the first to fifth planar sections and wing sections during the transport of the cut paper; and a first coating member and a second coating member, each disposed on the transport path of the cut paper being transported from the folding section and sequentially applying adhesive to the leading edge of the first planar section and the end of the wing sections of the first planar section and the third planar section during the cutting paper folding process. A technology has been previously registered comprising: a second transfer member positioned on the lower side of the folding section and transferring the supplied cutting sheet in a picked-up state; and a pressure member positioned on one side of the folding section and increasing the adhesion of the wing section by applying pressure to the wing section of the folding sheet that has been completed during transfer, wherein the pressure member is composed of a pair of pressure pieces having flat surfaces positioned facing each other to apply pressure to the first planar section and the third planar section of the folding cutting sheet, and wherein the pressure pieces are installed to be movable in the Y-axis direction while fixed to a vertical frame.

[0005] However, since the aforementioned conventional technology is configured to be attached by applying adhesive and adhesive attachment at the pressure part, there are limitations to box recycling due to the mixing of adhesive. The problem to be solved

[0006] Accordingly, the present invention was conceived to solve the aforementioned problems, and aims to provide a box joining device using sewing stitching that improves the structural integrity of folding the box cutting sheet and binding the overlapping parts by sewing, thereby replacing the metal stitching pins and adhesives used in box manufacturing, which increases the efficiency of recycling waste boxes, and in particular, synchronizes the box assembly member placed in a confined space with a servo motor to improve sewing precision and bind the overlapping parts with various types of stitches. means of solving the problem

[0007] To achieve this purpose, the feature of the present invention is that the two side parts (1b) are folded inward with respect to the center part (1a) of the cutting sheet (1) to form an overlapping part (2), and the overlapping part (2) is provided to be fastened by a sewing method in the sewing stitching part (100).

[0008] The above sewing stitching part (100) comprises: a lower bed (10) on which a cutting sheet (1) having an overlapping portion (2) is placed, and which is equipped with a feeding portion (11) that is driven by a first servo motor (S1) to transport the cutting sheet (1); an upper bed (20) spaced apart from the upper part of the lower bed (10), supported by a column (22) connected to a main body frame (21), and which is positioned between a center part (1a) and an overlapping portion (2) and is equipped with a bobbin member (H) that is operated by a second servo motor (S2) to supply a bobbin thread; and an upper thread supply portion (30) positioned on the upper part of the overlapping portion (2), controlled by a third servo motor (S3), and configured to form a stitch by intertwining the upper thread (T) with the bobbin thread of the bobbin member (H) through the up-and-down movement of a needle (31).

[0009] The above first, second, and third servo motors (S1), (S2), and (S3) are characterized by being configured to be synchronized with each other and driven in conjunction by a control unit.

[0010] At this time, the column (22) is formed such that upper and lower side passages (23) (24) have an overlapping section (L) at different heights on both sides, and the side parts (1b) on both sides corresponding to the overlapping section (2) are provided to pass through the upper and lower side passages (23) (24) at different heights apart from each other.

[0011] In addition, the driving force of the second servo motor (S2) is configured to be transmitted to the kiln member (H) side via the internal space between the upper and lower side passages (23)(24) of the column (22) by the shaft drive module (40), and

[0012] The shaft drive module (40) is characterized by including a plurality of power conversion shafts (42) that are connected to a second servo motor (S2) and whose power transmission direction is switched by a bevel gear (41) and are arranged along the internal space of a column (22) between upper and lower side passages (23) (24), and a first drive shaft (43) that has one end connected to a power conversion shaft (41) arranged at the bottom of the column (22) and the other end connected to a kiln member (H) via the inside of an upper bed (20) to transmit the driving force of the second servo motor (S2).

[0013] In addition, the driving force of the second servo motor (S2) is configured to be transmitted to the kiln member (H) side via the internal space of the column (22) between the upper and lower side passages (23) (24) of the column (22) by the wire drive module (50).

[0014] The above wire drive module (50) is characterized by including a flexible wire (51) having one end connected to a second servo motor (S2) and the other end arranged along the internal space of a column (22) between upper and lower side passages (23) (24), and a first drive shaft (52) having one end connected to a second servo motor (S2) and the other end connected to a kiln member (H) via the inside of an upper bed (20) to transmit the driving force of the second servo motor (S2).

[0015] In addition, the needle (31) and the bobbin member (H) of the upper thread supply unit (30) are spaced apart at multiple locations and are configured to sew multiple stitches simultaneously in the overlapping unit (2) area.

[0016] In addition, the needle (31) of the upper thread supply unit (30) is provided to be guided to move linearly in the longitudinal direction by the guide module (60), and

[0017] The guide module (60) is characterized by including a guide plate (62) that is installed between the upper thread supply unit (30) and the overlapping unit (2) and has a needle hole (61) formed therein to guide the longitudinal linear movement of the needle (31), and a thread groove (63) that is formed at two locations at an equal angle of 180° on the inner circumference of the needle hole (61) and is provided to allow the upper thread (T) inserted into the needle (31) to pass through.

[0018] Additionally, a cutter (70) is provided that is arranged parallel to the guide plate (62) and moves linearly in the lateral direction by a driving unit to cut the upper thread (T) received in the needle hole (61) and thread groove (63). After the needle (31) is guided in the needle hole (61) and moves back and forth in the longitudinal direction to sew a stitch in the overlapping portion (2) area, when the needle (31) moves upward to the outside of the needle hole (61), the cutter (70) moves linearly in the lateral direction to cut the upper thread (T).

[0019] In addition, the upper side passage (23) is formed at a downward slope angle as it moves toward the direction of transport of the cutting sheet (1), and the side part (1b) located at the top of the overlapping part (2) is provided to move along the upper side passage (23) at a downward slope angle and be in close contact with the upper surface of the side part (1b) located at the bottom.

[0020] Additionally, the upper side passage (23) is formed with a downward slope angle as it extends toward the width direction of the cutting sheet (1), and the side part (1b) located at the top of the overlapping part (2) is provided to be inserted into the upper side passage (23) at a slope angle at an angle that is folded at a slope angle with the center part (1a). Effects of the invention

[0021] According to the above configuration and operation, the present invention is structurally improved so that the box cutting sheet is folded and the overlapping part is bound by a sewing method, thereby replacing the metal stitching pins and adhesives used in box manufacturing, which increases the efficiency of recycling waste boxes, and in particular, by synchronizing the spool member placed in a narrow space with a servo motor, it has the effect of improving sewing precision and binding the overlapping part with various types of stitches. Brief explanation of the drawing

[0022] FIG. 1 is a schematic diagram showing the overall configuration of a sewing stitching part of a box joining device using sewing stitching according to an embodiment of the present invention. FIGS. 2 and 3 are configuration diagrams showing a bobbin member and an upper thread supply unit of a box joining device using sewing stitching according to an embodiment of the present invention. FIG. 4 is a configuration diagram showing the driving structure of a box member of a box joining device using sewing stitching according to an embodiment of the present invention. FIG. 5 is a configuration diagram showing a guide module of a box joining device using sewing stitching according to an embodiment of the present invention. FIG. 6 is a configuration diagram showing a cutter of a box joining device using sewing stitching according to an embodiment of the present invention. FIG. 7 is a configuration diagram showing a modified upper side passage of a box joining device using sewing stitching according to an embodiment of the present invention. FIG. 8 is a configuration diagram showing a modified example of the feeding section of a box joining device using sewing stitching according to an embodiment of the present invention. Specific details for implementing the invention

[0023] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. Furthermore, in describing the present invention, detailed descriptions of related known functions are omitted if they are deemed obvious to those skilled in the art and could unnecessarily obscure the essence of the invention.

[0024] FIG. 1 is a configuration diagram showing the sewing stitching part of a box joining device using sewing stitching according to an embodiment of the present invention, FIG. 2 and FIG. 3 are configuration diagrams showing the bobbin member and the upper thread supply part of a box joining device using sewing stitching according to an embodiment of the present invention, FIG. 4 is a configuration diagram showing the bobbin member driving structure of a box joining device using sewing stitching according to an embodiment of the present invention, FIG. 5 is a configuration diagram showing the guide module of a box joining device using sewing stitching according to an embodiment of the present invention, FIG. 6 is a configuration diagram showing the cutter of a box joining device using sewing stitching according to an embodiment of the present invention, FIG. 7 is a configuration diagram showing a modified example of the upper side passage of a box joining device using sewing stitching according to an embodiment of the present invention, and FIG. 8 is a configuration diagram showing a modified example of the feeding part of a box joining device using sewing stitching according to an embodiment of the present invention.

[0025] The present invention relates to a box joining device using sewing stitching, which is structurally improved to fold the box cutting sheet and bind the overlapping part by sewing, thereby replacing the metal stitching pins and adhesives used in box manufacturing, thus increasing the efficiency of recycling waste boxes, and in particular, the main components include a lower bed (10), an upper bed (20), and an upper thread supply unit (30) so that the sewing precision is improved and the overlapping part can be bound with various types of stitches by synchronizing the spool member placed in a narrow space with a servo motor.

[0026] Here, the box joining device using sewing stitching of the present invention is a device applied to the box joining part of a box manufacturing line, and typically, a box manufacturing line consists of a feeding part, a folding part, and a joining part.

[0027] The box joining device using sewing stitching according to the present invention forms an overlapping portion (2) by folding both side parts (1b) inwardly based on the center part (1a) of the cutting sheet (1), and the overlapping portion (2) is provided to be joined by sewing in the sewing stitching part (100).

[0028] The lower bed (10) according to the present invention is provided with a feeding section (11) that transports the cutting sheet (1) driven by a first servo motor (S1), and has a cutting sheet (1) having an overlapping section (2) placed thereon.

[0029] A feeding unit (11) according to one embodiment includes a plurality of feeding rollers (11a) that are rotated by a first servo motor (S1) as shown in FIG. 1, and the cutting paper (1) loaded onto the lower bed (10) is transported by the rotational movement of the feeding rollers (11a) so that the overlapping area (2) is bound by a sewing method by the kiln member (H) and the upper thread supply unit (30).

[0030] According to another embodiment, the feeding section (11) includes a feeding clamp (11b) that is linearly conveyed by a first servo motor (S1) as in FIG. 8 and is conveyed up and down by a hydraulic / pneumatic actuator, and the cutting sheet (1) loaded onto the lower bed (10) is conveyed while clamped to the feeding clamp (11b), and the overlapping section (2) area is bound by a sewing method by the kiln member (H) and the upper thread supply section (30).

[0031] Meanwhile, the above-mentioned bobbin member (H) forms a stitch by intertwining the upper thread (T) and the lower thread through the rotational movement of the hook. At this time, the hooks can be spaced apart in multiple numbers to form pairs with the needle (31), and each hook is synchronized with the paired needle (31) to operate in conjunction. It is also possible to configure the multiple bobbin members (H) to be connected so as to be synchronized by a gear or a timing belt.

[0032] In addition, the upper bed (20) according to the present invention is spaced apart from the upper part of the lower bed (10) and is supported by a column (22) connected to the main body frame (21), and is mounted with a bobbin member (H) that supplies a bobbin thread by being operated by a second servo motor (S2) while being positioned between the center part (1a) and the overlapping part (2).

[0033] The upper bed (20) is connected to one end by a column (22) and supported in a spaced-apart state from the lower bed (10), and is configured so that the center part (1a) of the cutting sheet (1) moves between the upper bed (20) and the lower bed (10), and the overlapping part (2) moves along the upper surface of the upper bed (20) to be sewn.

[0034] In addition, the upper thread supply unit (30) according to the present invention is positioned on the upper part of the overlapping unit (2) and is controlled by a third servo motor (S3), and is configured to form a stitch by intertwining the upper thread (T) with the lower thread of the bobbin member (H) through the up-and-down movement of the needle (31).

[0035] The needle (31) of the upper thread supply unit (30) is provided to penetrate the overlapping unit (2) and intertwine with the lower thread of the bobbin member (H) to form a stitch.

[0036] In addition, as shown in FIG. 3, the needle (31) and the bobbin member (H) of the upper thread supply unit (30) are spaced apart at multiple locations and are configured to sew multiple stitches simultaneously in the overlapping unit (2) area.

[0037] At this time, the number and spacing of the sweat formed in the overlapping portion (2) are determined by taking into account the weight of the contents packaged in the box.

[0038] Meanwhile, the upper thread supply unit (30) and the bobbin member (H) are provided to form various types of sewing stitches by selectively applying a known sewing device.

[0039] At this time, the first, second, and third servo motors (S1), (S2), and (S3) are configured to be synchronized and driven in conjunction by the control unit, thereby increasing sewing precision and having the advantage of being able to form various types of stitches.

[0040] In the enlarged view of FIG. 1, the column (22) is formed such that upper and lower side passages (23) (24) have an overlapping section (L) at different heights on both sides, and side parts (1b) on both sides corresponding to the overlapping section (2) are provided to pass through the upper and lower side passages (23) (24) at different heights apart from each other.

[0041] That is, the column (22) is formed in an 'L' shape by the upper and lower side passages (23) (24), and as a pair of side parts (1b) corresponding to the overlapping part (2) are moved while being received in the upper and lower side passages (23) (24) respectively, the pair of side parts (1b) can move without interference to the column (22) while forming the overlapping part (2).

[0042] In FIG. 7, the upper side passage (23) is formed at a downward slant angle as it moves toward the direction of the cutting sheet (1) transport, and the side part (1b) located at the top of the overlapping part (2) is provided to move along the upper side passage (23) at a downward slant angle and be in close contact with the upper surface of the side part (1b) located at the bottom, thereby ensuring that a pair of side parts (1b) are in close contact and the sewing quality is improved.

[0043] Additionally, the upper side passage (23) is formed with a downward slope angle as it extends toward the width direction of the cutting sheet (1), and the side part (1b) located at the top of the overlapping part (2) is provided to be inserted into the upper side passage (23) at a slope angle at an angle folded with respect to the center part (1a), thereby preventing deformation such as crumpling of the side part (1b) located at the top while passing through the upper side passage (23).

[0044] In FIG. 4 (a), the driving force of the second servo motor (S2) is configured to be transmitted to the kiln member (H) side via the internal space between the upper and lower side passages (23) (24) of the column (22) by the shaft drive module (40).

[0045] The shaft drive module (40) includes a plurality of power conversion shafts (42) that are connected to a second servo motor (S2) and whose power transmission direction is switched by a bevel gear (41) and are arranged along the internal space of a column (22) between upper and lower side passages (23) (24), and a first drive shaft (43) that has one end connected to a power conversion shaft (41) arranged at the bottom of the column (22) and the other end connected to a kiln member (H) via the inside of an upper bed (20) to transmit the driving force of the second servo motor (S2).

[0046] In this way, the power conversion shaft (42) is connected in the longitudinal and transverse directions, and corresponding ends are engaged by bevel gears (41) to drive in conjunction, so that the driving force of the second servo motor (S2) is transmitted to the kiln member (H) side through the narrow internal space between the upper and lower side passages (23) (24) of the column (22), thereby enabling precise driving of the kiln member (H) located in a narrow space where a driving means including a motor cannot be placed.

[0047] In FIG. 4 (b), the driving force of the second servo motor (S2) is configured to be transmitted to the kiln member (H) side via the internal space of the column (22) between the upper and lower side passages (23) (24) of the column (22) by the wire drive module (50).

[0048] The above wire drive module (50) includes a flexible wire (51) with one end connected to a second servo motor (S2) and the other end arranged along the internal space of a column (22) between upper and lower side passages (23) (24), and a first drive shaft (52) with one end connected to the second servo motor (S2) and the other end connected to a kiln member (H) via the inside of an upper bed (20) to transmit the driving force of the second servo motor (S2).

[0049] In this way, the driving force of the second servo motor (S2) is transmitted to the kiln member (H) side through the narrow internal space between the upper and lower side passages (23) (24) of the column (22) by the flexible wire (51), thereby enabling precise driving of the kiln member (H) located in a narrow space where a driving means including a motor cannot be placed.

[0050] In FIG. 5, the needle (31) of the upper thread supply unit (30) is provided so that its longitudinal linear movement is guided by the guide module (60).

[0051] The guide module (60) is installed between the upper thread supply unit (30) and the overlapping unit (2) and includes a guide plate (62) having a needle hole (61) formed therein to guide the longitudinal linear movement of the needle (31), and thread grooves (63) formed at two locations at an equal angle of 180° on the inner circumference of the needle hole (61) and provided to allow the upper thread (T) inserted into the needle (31) to pass through.

[0052] As such, when the needle (31) moves up and down to perform the sewing process, it is guided into the needle hole (61) and moves in a straight line, so even if a heavy load is applied while the needle (31) passes through the overlapping part (2), bending and breaking are prevented, thereby extending the lifespan of the needle (31) and improving sewing precision, and when the needle (31) is inserted into the needle hole (61), the upper thread (T) is received in the thread groove (63) and is safely protected, which is an advantage.

[0053] In FIG. 6, a cutter (70) is provided that is positioned parallel to the guide plate (62) and moves linearly in the lateral direction by a driving unit to cut the upper thread (T) received in the needle hole (61) and thread groove (63).

[0054] That is, the needle (31) is guided in the needle hole (61) and moves back and forth in the longitudinal direction to sew a stitch in the overlapping portion (2) area, and then when the needle (31) moves upward to the outside of the needle hole (61), the cutter (70) is configured to move linearly in the transverse direction to cut the upper thread (T), thereby enabling unmanned automation of the sewing process.

[0055] Meanwhile, when operating multiple needles (31), a cutter (70) is placed at each position corresponding to the needle hole (61), and the multiple cutters (70) are connected integrally by an operating piece and configured to be operated in conjunction by a single driving unit, or a configuration is also possible in which multiple cutter holes are formed on a cutting plate parallel to the guide plate (62) and the cutting plate is operated in conjunction by a single driving unit to cut multiple upper threads (T) at once. Explanation of the symbols

[0056] 100: Sewing Stitching Part 10: Lower bed 20: Upper bed 30: Upper thread supply unit 40: Shaft drive module 50: Wire drive module 60: Guide module 70: Cutter

Claims

Claim 1 Based on the center part (1a) of the cutting sheet (1), the two side parts (1b) are folded inward to form an overlapping part (2), and the overlapping part (2) is provided to be connected by a sewing method in the sewing stitching part (100). The sewing stitching part (100) is provided with a lower bed (10) on which the cutting sheet (1) having the overlapping part (2) is placed, and which is equipped with a feeding part (11) that is driven by a first servo motor (S1) to transport the cutting sheet (1); and an upper bed (20) spaced apart from the upper part of the lower bed (10), supported by a column (22) connected to a main body frame (21), and which is mounted with a bobbin member (H) that is positioned between the center part (1a) and the overlapping part (2) and is operated by a second servo motor (S2) to supply a bobbin thread. A box joining device using sewing stitching, comprising: an upper thread supply unit (30) positioned on the upper part of the overlapping part (2) and controlled by a third servo motor (S3), configured to form a stitch by interlocking the upper thread (T) with the lower thread of the bobbin member (H) through the up-and-down movement of the needle (31); wherein the first, second, and third servo motors (S1), (S2), and (S3) are configured to be synchronized and driven in conjunction with each other by a control unit. Claim 2 A box joining device using sewing stitching, characterized in that, in claim 1, the column (22) is formed such that upper and lower side passages (23) (24) on both sides have an overlapping section (L) at different heights from each other, and side parts (1b) on both sides corresponding to the overlapping section (2) are provided to pass through the upper and lower side passages (23) (24) at different heights from each other. Claim 3 In claim 2, the driving force of the second servo motor (S2) is configured to be transmitted to the kiln member (H) side via the internal space between the upper and lower side passages (23) (24) of the column (22) by a shaft driving module (40), and the shaft driving module (40) is characterized by including a plurality of power conversion shafts (42) that are connected to the second servo motor (S2) and whose power transmission direction is switched by a bevel gear (41) and are arranged along the internal space of the column (22) between the upper and lower side passages (23) (24), and a first driving shaft (43) that has one end connected to a power conversion shaft (41) arranged at the bottom of the column (22) and the other end connected to the kiln member (H) via the inside of the upper bed (20) to transmit the driving force of the second servo motor (S2). Claim 4 In claim 2, the driving force of the second servo motor (S2) is configured to be transmitted to the kiln member (H) side via the internal space of the column (22) between the upper and lower side passages (23) (24) of the column (22) by a wire driving module (50), and the wire driving module (50) is characterized by including a flexible wire (51) having one end connected to the second servo motor (S2) and the other end arranged along the internal space of the column (22) between the upper and lower side passages (23) (24), and a first driving shaft (52) having one end connected to the second servo motor (S2) and the other end connected to the kiln member (H) via the interior of the upper bed (20) to transmit the driving force of the second servo motor (S2). Claim 5 A box joining device using sewing stitching, characterized in that, in the first paragraph, the needle (31) and the bobbin member (H) of the upper thread supply unit (30) are spaced apart at multiple locations and are configured to sew multiple stitches simultaneously in the overlapping unit (2) area. Claim 6 A box joining device using sewing stitching according to claim 1, wherein the needle (31) of the upper thread supply unit (30) is provided to be guided to move linearly in the longitudinal direction by a guide module (60), and the guide module (60) is installed between the upper thread supply unit (30) and the overlapping unit (2) and includes a guide plate (62) having a needle hole (61) formed therein to guide the linear movement of the needle (31) in the longitudinal direction, and a thread groove (63) formed at two locations at an equal angle of 180° on the inner circumference of the needle hole (61) and provided to allow the upper thread (T) inserted into the needle (31) to pass through. Claim 7 A box joining device using sewing stitching according to claim 6, characterized in that a cutter (70) is provided that is arranged parallel to the guide plate (62) and moves linearly in the lateral direction by a driving unit to cut the upper thread (T) received in the needle hole (61) and thread groove (63), and after the needle (31) is guided in the needle hole (61) and moves back and forth in the longitudinal direction to sew a stitch in the overlapping portion (2) area, when the needle (31) moves upward to the outside of the needle hole (61), the cutter (70) moves linearly in the lateral direction to cut the upper thread (T). Claim 8 A box joining device using sewing stitching, characterized in that, in the second paragraph, the upper side passage (23) is formed at a downward sloping angle as it moves toward the direction of transport of the cutting sheet (1), and the side part (1b) located at the top of the overlapping part (2) is provided to move along the upper side passage (23) at a downward sloping angle and be in close contact with the upper surface of the side part (1b) located at the bottom. Claim 9 A box joining device using sewing stitching, characterized in that, in the second paragraph, the upper side passage (23) is formed at a downward sloping angle as it extends toward the width direction of the cutting sheet (1), and the side part (1b) located at the top of the overlapping part (2) is provided to be inserted into the upper side passage (23) at an sloping angle at an angle that is folded at an sloping angle with the center part (1a).

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