Upper portion covering device for wrap packaging of article

Abstract

An upper portion covering device for wrap packaging of an article is provided to enable an upper portion of an article (2) to be covered by a separate packaging sheet (152) before a side surface of the article is wrapped with a stretch film by a wrapping apparatus. The upper portion covering device comprises: a pair of support frames (102) respectively installed on both left and right sides of a conveyor (10) on which the article (2) is transferred; a lifting frame (110) of which opposite sides are respectively supported by the pair of support frames (102) to be vertically movable; a lifting driving unit (130) for raising or lowering the lifting frame (110); a rack (140) installed on one side of the lifting frame (110) and supporting a packaging sheet roll (150) to be rotatable on its own position; a transfer roller (160) which is installed on the other side of the lifting frame (110) and is rotated while holding the packaging sheet (152) of the packaging sheet roll (150), so that the packaging sheet roll (150) is released and the packaging sheet (152) is transferred; and a cutting unit (170) installed on the opposite side of the packaging sheet roll (150) of the transfer roller (160) to cut the packaging sheet (152).

Description

Top cover for wrapping goods

[0001] The present invention relates to an upper cover for wrapping an article, and more specifically, to an upper cover for wrapping an article configured to allow a separate packaging sheet to be placed over the top of the article before wrapping the sides of the article with a stretch film using a wrapping device.

[0002] Generally, a wrapping device is a device that packages goods or boxes containing goods by wrapping them in a thin film to protect them from dust or moisture or to prevent them from becoming disorganized.

[0003] The above wrapping device is widely used in factories or logistics centers to stack box-packaged products in multiple layers for shipment.

[0004] Here, products are stacked in multiple layers on pallets and transported by a conveyor, and are mainly packaged by the wrapping device at the end of the conveyor.

[0005] The wrapping device is equipped with a turntable on which a pallet loaded with products is rotated, and a roll-shaped stretch film is installed on one side of the turntable to wrap the outer surface of the products.

[0006] Conventional wrapping devices are disclosed in Registered Patent Publication No. 10-1561055, Registered Patent Publication No. 10-2703608, etc.

[0007] Registered Patent Publication No. 10-1561055 A turntable-type wrapping device comprises: a base (100); a wrap supply unit (500) installed vertically on a mast installed on the base (100) to be movable up and down, and supplying a wrap (510) for wrapping a product; a turntable (400) rotatably installed on the base (100) to rotate the product during product wrapping; and a wrap support unit (610) installed on the turntable (400) in a structure that can be laid down and stood up, maintaining a lying position during product wrapping and operating to stand up when product wrapping is completed, thereby supporting the wrap wound on the product while keeping it spaced apart from the product. The device includes a wrap cutting and welding unit (630) that is installed to move back and forth in a position facing the wrap support unit (610) and cuts and welds the wrap separated from the product through the wrap support unit (610). The wrap cutting and welding unit (630) is installed in a structure that can be laid down and erected in the same way as the wrap support unit (610), so that it maintains a lying position during product wrapping, and when cutting the wrap, it operates to be erected so that it faces the wrap support unit (610) after the wrap support unit (610) is erected.

[0008] Registered Patent Publication No. 10-2703608 The turntable-type wrapping finishing device comprises: a wrap supply unit (20) that is installed vertically on a mast (21) and is movable up and down to supply a wrap (110) for wrapping; a turntable (30) that is spaced apart from the wrap supply unit (20) and is rotatably installed to rotate a product during wrapping; a wrap fixing unit (40) that is installed spaced apart from each other on one side of the turntable (30) and has a left wrap fixing unit (40a) and a right wrap fixing unit (40b) for fixing the wrap (110); and a wrap cutting unit (50) that is positioned between the left wrap fixing unit (40a) and the right wrap fixing unit (40b) of the wrap fixing unit (40) and has a cutting blade (511) for cutting the wrap (110) fixed by the wrap fixing unit (40) when wrapping is completed.

[0009] Conventional wrapping devices configured as described above are configured so that the wrap is wound only around the side perimeter of the product, so there is a problem in that the top surface of the wrapped product is easily exposed to rain, snow, dust, etc. during transportation or storage.

[0010] The present invention is made with an eye-open view of the above points, and aims to provide an upper cover for wrapping an article in which a separate packaging sheet is placed over the top of an article being transported to a wrapping device via a conveyor, so that when the side of the article is wrapped with a wrap by the wrapping device thereafter, the top surface of the product is covered by the packaging sheet and the article can be wrapped.

[0011] The upper cover device for wrapping an article proposed by the present invention comprises a pair of support frames installed on each of the left and right sides of a conveyor through which the article is transported, a lifting frame supported on each of the pair of support frames so as to be movable up and down on each side, a lifting drive unit for raising or lowering the lifting frame, a rack installed on one side of the lifting frame and supporting a packaging roll so as to be rotatable in place, a transfer roller installed on the other side of the lifting frame that grips the packaging roll and rotates, thereby releasing the packaging roll and transporting the packaging roll to the opposite side of the packaging roll, and a cutting unit installed on the opposite side of the transfer roller to cut the packaging roll.

[0012] The packaging sheet conveyed by the conveyor roller above is lowered downward, and the item is conveyed by a conveyor and its upper surface is covered by the lowered packaging sheet.

[0013] The present invention may further include a spray nozzle that sprays airflow downward so that the packaging sheet adheres to the article when the upper part of the article is covered by the lowered packaging sheet while the article is being transported.

[0014] According to the upper cover for wrapping an article according to an embodiment of the present invention, it is possible to cover the top of the article prior to wrapping the article using a wrapping device, so that contamination of the article can be minimized during transportation or storage.

[0015] Furthermore, according to the upper cover device for wrapping an article according to an embodiment of the present invention, it is possible to cover the upper surface of an article being transported without stopping the transport of the article, thereby enabling the top surface and sides of the article to be wrapped quickly in conjunction with the wrapping device.

[0016] FIG. 1 is a perspective view showing an upper cover for wrapping an article according to one embodiment of the present invention.

[0017] FIG. 2 is a front view showing an upper cover for wrapping an article according to one embodiment of the present invention.

[0018] FIG. 3 is a side view showing an upper cover for wrapping an article according to one embodiment of the present invention.

[0019] FIG. 4 is a side view of the usage state showing an upper cover for wrapping an article according to one embodiment of the present invention.

[0020] FIG. 5 is a side cross-sectional view showing an upper cover for wrapping an article according to one embodiment of the present invention.

[0021] FIG. 6 is a side view showing a lifting drive unit of an upper cover for wrapping an article according to one embodiment of the present invention.

[0022] FIG. 7 is a plan view showing a lifting drive unit of an upper cover for wrapping an article according to one embodiment of the present invention.

[0023] FIG. 8 is a plan view showing a rack of an upper cover for wrapping articles according to one embodiment of the present invention.

[0024] FIG. 9 is a side cross-sectional view showing a rack of an upper cover for wrapping articles according to one embodiment of the present invention.

[0025] FIG. 10 is a side view showing a transfer roller of an upper cover for wrapping articles according to one embodiment of the present invention.

[0026] FIG. 11 is another side view showing a transfer roller of an upper cover for wrapping articles according to one embodiment of the present invention.

[0027] FIG. 12 is another side view showing a transfer roller of an upper cover for wrapping articles according to one embodiment of the present invention.

[0028] FIG. 13 is a plan view showing a cutting portion of an upper cover for wrapping an article according to one embodiment of the present invention.

[0029] FIG. 14 is a side cross-sectional view showing a cutting portion of an upper cover for wrapping an article according to one embodiment of the present invention.

[0030] FIGS. 15 to 20 are side views showing the operating state of an upper cover for wrapping an article according to one embodiment of the present invention.

[0031] FIG. 21 is a side cross-sectional view showing another embodiment of an upper cover for wrapping articles according to one embodiment of the present invention.

[0032] Next, a preferred embodiment of an upper cover for wrapping articles according to the present invention will be described in detail with reference to the drawings.

[0033] In the following, the same reference numerals are used for technical elements that perform the same function, and repetitive detailed descriptions are omitted to avoid redundant explanations.

[0034] Furthermore, the embodiments described below are provided as examples to effectively demonstrate preferred embodiments of the present invention and should not be interpreted to limit the scope of the present invention.

[0035] The upper cover device for wrapping an article according to an embodiment of the present invention relates to a cover device that covers the upper part of an article with a wrapping sheet at the front of a wrapping device when the article is transported to a wrapping device via a transport means such as a conveyor to wrap the side of the article with a wrap such as a stretch film.

[0036] As shown in FIGS. 1 to 5, an upper cover for wrapping an article according to one embodiment of the present invention comprises: a pair of support frames (102) each installed on both the left and right sides of a conveyor (10) through which an article (2) is transported; a lifting frame (110) supported on both sides of the pair of support frames (102) so as to be movable up and down; a lifting drive unit (130) for raising or lowering the lifting frame (110); a rack (140) installed on one side of the lifting frame (110) and supporting a packaging sheet roll (150) so as to be rotatable in place; a transfer roller (160) installed on the other side of the lifting frame (110) which grips the packaging sheet (152) of the packaging sheet roll (150) and rotates so that the packaging sheet roll (150) is released and the packaging sheet (152) is transported to the opposite side of the packaging sheet roll (150); and the It comprises a cutting section (170) installed on the opposite side of the packaging sheet roll (150) of the transfer roller (160) to cut the packaging sheet (152).

[0037] The lower portions of a pair of support frames (102) can be connected to each other using a lower connecting frame (104), and the upper portions can be connected to each other using an upper connecting frame (106).

[0038] A pair of vertically elongated fixed rails (120) are installed on each of the pair of support frames (102) so that the lifting frame (110) can move up and down.

[0039] On both sides of the lifting frame (110), a moving rail (122) is installed to be slidably coupled with a pair of fixed rails (120).

[0040] The above lifting frame (110) may be formed by including a pair of plate-shaped side frames installed at regular intervals and a plurality of connecting frames connecting the pair of side frames.

[0041] As shown in FIGS. 6 and 7, the above lifting drive unit (130) comprises a first pulley (131) rotatably installed on the lower side of one of the pair of support frames (102), a second pulley (132) rotatably installed on the upper side of the support frame (102) where the first pulley (131) is installed, a driving source (134) that rotates either of the first pulley (131) and the second pulley (132), and a chain (136) that is wound around the first pulley (131) and the second pulley (132) and circulates, with a longitudinal portion (one part) fixed to the lifting frame (110), and causes the lifting frame (110) to move up and down as the portion fixed to the lifting frame (110) moves up and down according to the forward and reverse rotation of the driving source (134).

[0042] Referring to FIG. 5, the above rack (140) is formed by including a pair of support rolls (141) that are installed at regular intervals, each having both ends rotatably connected to the lifting frame (110) and having the packaging sheet roll (150) placed on the upper side.

[0043] The above support rollers (141) may also be installed in three or more places at regular intervals.

[0044] Here, the rack (140) may also be formed to further include a pair of guardrails (142) installed across the upper portions of both ends of the support roll (141), as shown in FIGS. 8 and 9, and a rail position adjuster (146) that supports both ends of the guardrails (142) in a sliding manner.

[0045] Both ends of the guardrail (142) can be fixed to a certain position on the rail position adjuster (146) using a fixing means such as a stop screw (1143).

[0046] The above guardrail (142) is formed in the shape of a rod with a roughly rounded circumference and may be equipped with a cushioning pad (144) on the outer circumference.

[0047] By installing the rack (140) as described above, it is possible to restrict movement in the left-right direction (length direction) when the packaging sheet roll (150) is unwound.

[0048] Meanwhile, a tension roller (148) is further installed on the lifting frame (110) to apply tension to the packaging sheet (152) between the rack (140) and the transfer roller (160).

[0049] The tension roller (148) has both ends rotatably supported on the lifting frame (110) and is arranged in a triangle with the packaging sheet roller (150) and the transfer roller (160) to maintain the tension of the packaging sheet (152).

[0050] As shown in FIGS. 10 to 12, the above transfer roller (160) comprises a pair of upper rollers (162) and lower rollers (164) that are each rotatably supported at both ends on the lifting frame (110), arranged vertically side by side, and transfer the packaging sheet (152) while rotating in opposite directions, and a rotation unit (166) that rotates the upper roller (162) and lower roller (164) in opposite directions.

[0051] The upper roller (162) may also be installed to be movable up and down on the lifting frame (110) via the up and down movement unit (163).

[0052] The above-mentioned upper and lower movement unit (163) can be made of, for example, an air cylinder.

[0053] As described above, when the upper roll (162) moves up and down, it is possible to easily set the packaging sheet (152) for transporting by widening the gap between the upper roll (162) and the lower roll (164).

[0054] The above-mentioned rotating unit (166) comprises a motor (167) and a pair of gears (168) that rotate a pair of upper rolls (162) and lower rolls (164) using the driving force of the motor (167).

[0055] The packaging sheet (150), which is transported in the opposite direction of the packaging sheet roll (150) by the above-mentioned transport roller (160), is lowered downward by its own weight.

[0056] Meanwhile, as shown in FIGS. 15 to 20, the upper part of the above-mentioned item (2) is naturally covered by the packaging sheet (152) that is lowered while being transported between a pair of support frames (102) by the conveyor (10).

[0057] Here, the packaging sheet (152) is lowered in the forward direction of transport of the item (2) with its end positioned lower than the upper surface of the item (2), and the upper front surface of the item (2) is touched first. As the packaging sheet (152) continues to be lowered and the item (2) is transported, the packaging sheet (152) covers the upper surface of the item (2) from the front to the rear, and is then cut by the cutting part (170).

[0058] The process of covering the upper part of the above-mentioned article (2) with a packaging sheet (152) is explained in more detail with reference to FIGS. 15 to 20. First, the article (2) is transported via a conveyor (10) toward an upper cover for wrapping the article according to the present invention. At this time, when the article (2) approaches the upper cover within a certain distance range, a first sensor (S1) detects the article (2).

[0059] When the first sensor (S1) detects the item (2), the lifting frame (110) at the top of the support frame (102) descends until the second sensor (S2) detects it, and as a result, the lifting frame (110) maintains a certain distance from the upper surface of the item (2).

[0060] As described above, when the lifting frame (110) descends, the conveying roller (160) conveys the packaging sheet (152) and unwinds the packaging sheet roll (150). Accordingly, the packaging sheet (152) is lowered in the forward direction of the conveying of the item (2) with its end positioned lower than the upper surface of the item (2), and the upper front surface of the conveying item (2) first touches the packaging sheet (152). As the item (2) is conveyed while the packaging sheet (152) continues to be lowered, the packaging sheet (152) covers the upper surface of the item (2) from the front to the rear.

[0061] Here, the packaging sheet (152) is lowered while the item (2) is detected by the third sensor (S3), and when the item (2) is not detected by the third sensor (S3), the rotation of the transfer roller (160) is stopped and the packaging sheet (152) is subsequently cut by the cutting part (170).

[0062] As shown in FIGS. 13 and 14, the cutting section (170) comprises a cutting table (171) located at the rear of the packaging sheet (152) in the direction of travel of the conveying roller (160) and installed on the lower side of the packaging sheet (152), with a blade movement groove (172) formed in the width direction of the packaging sheet (152); a clamp (174) that moves a contact head (175) back and forth to contact or release one side (rear) of the cutting portion of the packaging sheet (152) to the cutting table (151); and a cutter (180) installed such that a holder (184) supporting one side of the blade (186) moves along a rail (182) so that the blade (186) cuts the packaging sheet (152).

[0063] FIG. 16 is a drawing showing an upper cover for wrapping an article according to another embodiment of the present invention.

[0064] According to another embodiment of the present invention, the upper cover for wrapping an article is further provided with a nozzle (190) that sprays air so that the packaging sheet (152) adheres to the article (2) when the upper part of the article (2) is covered by the lowered packaging sheet (152), as shown in FIG. 16.

[0065] The nozzle (190) is formed in a tubular shape that is elongated in the direction of the packaging sheet (152), and sprays air supplied from the air compressor, etc. through a nozzle hole (192) that is elongated along the width direction of the packaging sheet (152) on the lower side.

[0066] In the other embodiments described above, since it is possible to implement them with the same configuration as the first embodiment except for the configuration described above, a detailed description is omitted.

[0067] Although a preferred embodiment of an upper cover for wrapping articles according to the present invention has been described above, the present invention is not limited thereto, and various modifications are possible within the scope of the claims, the description of the invention, and the attached drawings, and such modifications are also within the scope of the present invention.

[0068] According to the present invention, the upper cover device for wrapping an article constitutes part of an article packaging system used in manufacturing plants and logistics centers. Since it is possible to cover the top of the article, it is possible to quickly wrap the top and sides of the article in conjunction with a wrapping device.

Claims

1. A cover device that covers the top of an item with a packaging sheet at the front of a wrapping device when the item is transported to a wrapping device via a means of transport, A pair of support frames (102) installed on each of the left and right sides of a conveyor (10) through which an item (2) is transported, and A lifting frame (110) that is supported on both sides of a pair of support frames (102) so as to be movable up and down, and A lifting drive unit (130) for raising or lowering the lifting frame (110), and A rack (140) installed on one side of the lifting frame (110) and supporting a packaging sheet roll (150) so as to be rotatable in place, and A transfer roller (160) installed on the other side of the lifting frame (110) and rotating while gripping the packaging sheet (152) of the packaging sheet roll (150), thereby unwinding the packaging sheet roll (150) and transferring the packaging sheet (152), and It includes a cutting part (170) installed on the opposite side of the packaging sheet roll (150) of the above-mentioned transfer roller (160) to cut the packaging sheet (152), and The packaging sheet (152) conveyed by the above conveying roller (160) is lowered downward, and The upper cover for wrapping an article is characterized by the upper portion of the article (2) being covered by the packaging sheet (152) that is lowered while being transported by the conveyor (10).

2. In Claim 1, The above lifting drive unit (130) is, A first pulley (131) installed on the lower side of the support frame (102), and A second pulley (132) installed on the upper side of the support frame (102), and A driving source (134) that rotates either of the first pulley (131) and the second pulley (132), and An upper cover for wrapping an article, comprising a chain (136) that is wound around and circulated on the first pulley (131) and the second pulley (132), has a portion in the longitudinal direction fixed to the lifting frame (110), and moves up and down as the portion fixed to the lifting frame (110) moves according to the forward and reverse rotation of the driving source (134), thereby lifting the lifting frame (110).

3. In claim 1 or claim 2, A pair of vertically elongated fixed rails (120) are installed on each of the pair of support frames (102), and An upper cover for wrapping an item, having a pair of movable rails (122) installed on each side of the lifting frame (110) and each slidably coupled to a pair of fixed rails (120).

4. In Claim 1, The above rack (140) is, An upper cover for wrapping an article, comprising a plurality of support rolls (141) installed at regular intervals, each having both ends rotatably connected to the lifting frame (110), and having the packaging sheet roll (150) placed on the upper side.

5. In Claim 4, The above rack (140) is, An upper cover for wrapping an article, further comprising a pair of guardrails (142) installed across the upper portions of both ends of the support roller (141), and a rail position adjuster (146) that supports both ends of the guardrails (142) in a sliding manner.

6. In Claim 1, The above transfer roller (160) is, An upper cover for wrapping an article, comprising a pair of upper rolls (162) and lower rolls (164) that are each rotatably supported at both ends on a lifting frame (110), arranged vertically side by side, and rotate in opposite directions to convey the packaging sheet (152).

7. In Claim 1, The above cutting part (170) is, A cutting table (171) located at the rear of the packaging sheet (152) in the direction of travel of the above-mentioned transfer roller and installed on the lower side of the packaging sheet (152), and having a blade movement groove (172) formed long in the width direction of the packaging sheet (152), and A clamp (174) for attaching or releasing one side of the cutting portion of the above packaging sheet (152) to the cutting table (171), and An upper cover for wrapping an article, comprising a cutter (180) installed so that the blade cuts the packaging sheet (152) as a holder (184) supporting one side of the blade (182) moves along a rail (186).

8. In Claim 1, An upper cover for wrapping an item, further comprising a nozzle (190) that sprays airflow downward so that the packaging sheet (152) adheres to the item (2) when the item (2) is being transported and covered by the packaging sheet (152) that is lowered from the top.

9. In Claim 1, An upper cover for wrapping articles, further comprising a tension roller (148) that applies tension to a wrapping sheet (152) between the rack (140) and the transfer roller (160).

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