Flattening device for bagged products

Abstract

A flattening device for bagged products is disclosed, which flattens the surface of a bagged product so that it becomes flat. For this purpose, the device provides a belt conveyor including a first rotating roller installed in the width direction of the conveyor at the leading edge of the conveyor, a second rotating roller installed behind the first rotating roller and parallel to the first rotating roller, a conveyor belt installed so as to wrap around the first and second rotating rollers, a first main gear installed on the first or second rotating roller, and a first drive motor connected to the first main gear and transmitting driving force, a dispersion guide unit installed inside the belt conveyor that supplies an external force so that the contents of the bagged product being transported via the conveyor belt can be dispersed inside the bagged product, and a pressurizing unit installed above the belt conveyor, spaced apart from the belt conveyor, that pressurizes the bagged product being transported via the belt conveyor in the direction of the dispersion guide unit. According to the present invention, the surface of the bagged product can be flattened by applying impact to the bagged product during the process of transporting it on a conveyor belt, so that the contents of the bagged product are naturally dispersed.

Description

Technical Field

[0001] This application claims the benefit of priority based on Korean Patent Application No. 10-2023-0064106 filed on May 18, 2023, and all the contents disclosed in the document of the corresponding Korean patent application are incorporated herein by reference as part of this specification.

[0002] The present invention relates to a flattening device for a bag-packed product that flattens the surface of the bag-packed product to be flat during the transfer process of a conveyor. More specifically, the present invention relates to a flattening device for a bag-packed product that can gradually flatten the surface of the bag-packed product by applying an external force to the surface of the bag-packed product during the transfer process of the bag-packed product by a conveyor so as to relieve the crushing of the bag-packed product in which the contents are concentrated in a partial area of the packaging bag.

Background Art

[0003] Generally, a sealed vinyl packaging bag is a bag formed by heat-sealing the peripheries of two or three sheets of known various vinyl compounds such as PP (polypropylene) and PE (polyethylene) to form a space inside.

[0004] Such sealed vinyl packaging bags are classified into various types such as pouches and self-standing sealed vinyl packaging bags according to their uses, and are used to package and store liquid or gel-like fillers such as drinks, detergents, fabric softeners, miso, and kochujang in their internal spaces.

[0005] In addition, because sealed vinyl packaging bags are easy to carry and have low packaging costs, they are also used as refill containers instead of glass bottles, cans, plastic containers, etc. In particular, sealed vinyl packaging bags are used as wrapping papers for packaging frozen foods such as dumplings.

[0006] However, when packaging frozen food in airtight plastic bags, a problem can arise where the frozen food is not evenly distributed inside the bag during the process of being placed inside, and remains tangled in some areas.

[0007] Furthermore, if a bagged product consisting of frozen food wrapped in a sealed plastic bag has an uneven surface due to the entanglement of the frozen food, a process of flattening the bagged product is necessary in order to stack and package the bagged product inside a box.

[0008] Figure 1 is a schematic diagram illustrating a conventional automated packaging system.

[0009] Referring to Figure 1, a conventional automated packaging system includes a flattening part 10 that flattens the bagged products, a spacing adjustment part 20 that adjusts the spacing between the bagged products, and a stacking part 30 that stacks the bagged products in groups of two or three.

[0010] The spacing adjustment part 20 consists of a primary spacing adjustment section 20A, a secondary spacing adjustment section 20B, and a connecting section 20C. The bagged products, adjusted to appropriate intervals via the primary and secondary spacing adjustment sections 20A and 20B, are transferred to the stacking part 30 via the conveyor belt 23 that constitutes the connecting section 20C.

[0011] The stacked bagged products P1 and P2 must maintain a stable stacked state without becoming disordered until they are placed inside the box. However, if creases form in the bagged products, the product P1 placed on top may slip and deviate from its position, potentially leading to a problem of poor alignment of the stacked products before box packaging.

[0012] Such misalignment leads to defects in box packaging, which inevitably significantly worsens the efficiency of automated box packaging. [Overview of the Initiative] [Problems that the invention aims to solve]

[0013] Therefore, the present invention aims to provide a flattening device for bagged products that can flatten bagged products by automatically compressing the crushed parts of the bagged products and guiding the contents of the bagged products to be dispersed, so that bagged products that may be stacked or partially overlapping with each other during the process of being transported via a conveyor can be smoothly packaged when being placed into a packaging box. [Means for solving the problem]

[0014] To achieve the above-described object of the present invention, one embodiment of the present invention provides a flattening device for bagged products, comprising: a belt conveyor including a first rotating roller installed in the width direction of the conveyor at the leading edge of the conveyor; a second rotating roller installed behind the first rotating roller and parallel to the first rotating roller; a conveyor belt installed so as to enclose the first and second rotating rollers; a first main gear installed on the first or second rotating roller; and a first drive motor connected to the first main gear for transmitting driving force; a dispersion guide unit installed inside the belt conveyor to supply external force so that the contents of the bagged products being transported via the conveyor belt can be dispersed inside the bagged products; and a pressurizing unit installed above the belt conveyor so as to be separated from the belt conveyor to pressurize the bagged products being transported via the belt conveyor in the direction of the dispersion guide unit. [Effects of the Invention]

[0015] According to the present invention, the surface of the bagged product can be flattened by applying impact to the bagged product during the process of transporting it on a conveyor belt, so that the contents of the bagged product are naturally dispersed.

[0016] Furthermore, the present invention increases production speed because it can restore the flattened surface of bagged products to a flat state during the transfer process of bagged products, and prevents the problem of the packaging bags of each bagged product being damaged during the process of bagged products being tightly packed together.

[0017] In addition, since the present invention is installed so as to transmit an impact only to a bag-packed product that deforms the conveyor belt by bending the pressing roller, damage to the conveyor belt can be minimized.

Brief Description of the Drawings

[0018] [Figure 1] It is a schematic diagram schematically showing a conventional automatic packaging system. [Figure 2] It is a perspective view for explaining a flattening device for bag-packed products according to the present invention. [Figure 3] It is a plan view showing a flattening device for bag-packed products according to the present invention. [Figure 4] It is a right side view showing a flattening device for bag-packed products according to the present invention. [Figure 5] It is a left side view showing a flattening device for bag-packed products according to the present invention. [Figure 6] It is a cross-sectional view showing a flattening device for bag-packed products according to the present invention. [Figure 7] It is a plan view for explaining a pressing roller of a flattening device for bag-packed products according to the present invention.

Mode for Carrying Out the Invention

[0019] Hereinafter, with reference to the accompanying drawings, a flattening device for bag-packed products according to a preferred embodiment of the present invention will be described in detail.

[0020] FIG. 2 is a perspective view for explaining a flattening device for bag-packed products according to the present invention, FIG. 3 is a plan view showing a flattening device for bag-packed products according to the present invention, FIG. 4 is a right side view showing a flattening device for bag-packed products according to the present invention, and FIG. 5 is a left side view showing a flattening device for bag-packed products according to the present invention.

[0021] Referring to FIGS. 2 to 5, the flattening device for bagged products according to the present invention includes a belt conveyor 100 including a first drive motor 150, and is installed inside the belt conveyor 100 to supply an external force so as to disperse the contents of the bagged products transferred through the conveyor belt 130 inside the bagged products. And a dispersion guiding part 200, and a pressing part 300 installed above the belt conveyor 100 so as to be separated from the belt conveyor 100 and pressing the bagged products transferred through the belt conveyor 100 in the direction of the dispersion guiding part 200.

[0022] Such a flattening device for bagged products moves the bagged products supplied from the preceding conveyor, disperses the contents concentrated in a part of the regions of the contents contained in the bagged products, and then discharges the bagged products to the succeeding conveyor.

[0023] Also, the bagged products contain contents having a hard surface and a predetermined volume, such as frozen dumplings. When the contents are concentrated in a part of the space of the packaging bag during the packaging process, the bagged products may show a bent outer shape instead of a flat outer shape.

[0024] Hereinafter, referring to the drawings, each component will be specifically described.

[0025] Referring to FIGS. 2 to 5, the flattening device for bagged products according to an embodiment of the present invention may further include an outer frame 400.

[0026] The outer frame 400 is composed of a number of frames to provide an outer shape, and rectangular parallelepiped frames are connected to each other via screws to provide an installation space for the belt conveyor 100, the dispersion guiding part 200, and the pressing part 300.

[0027] Such an outer frame 400 is composed of a plurality of column frames placed in a direction perpendicular to the ground and a roof frame installed between the column frames so as to be connected to the upper ends of the column frames.

[0028] Furthermore, the outer frame 400 can be fitted with transparent protective plates around the belt conveyor 100 and the pressurizing section 300 to protect the belt conveyor 100 and the pressurizing section 300. Such transparent protective plates can be hinged to the outer frame 400 and rotated, and a handle 410 that receives external force can be provided on the transparent protective plate to allow it to be easily rotated by external force.

[0029] Furthermore, the outer frame 400 may have spiral mounting holes formed at its upper end, preferably in the roof frame.

[0030] Referring to Figures 2 to 5, the flattening apparatus for bagged products according to the present invention includes a belt conveyor 100.

[0031] The belt conveyor 100 moves bagged products that have been fed into the front of the conveyor by the rotation of the belt to the rear end, and includes a first rotating roller 110 installed in the width direction of the conveyor at the front of the conveyor, a second rotating roller 120 installed behind the first rotating roller 110 and parallel to the first rotating roller 110, a conveyor belt 130 installed so as to wrap around the first rotating roller 110 and the second rotating roller 120, a first main gear 140 installed on the first rotating roller 110 or the second rotating roller 120, and a first drive motor 150 connected to the first main gear 140 and transmitting driving force.

[0032] If necessary, the belt conveyor 100 may be equipped with left and right partitions that provide space on both the left and right sides of the conveyor belt 130 for the first rotating roller 110 and the second rotating roller 120 to be installed.

[0033] The first rotating roller 110 rotates on its axis by a driving force transmitted from the first drive motor 150 and can consist of a first main roller that contacts the conveyor belt 130 and rotates the conveyor belt 130, and a first central shaft that protrudes from the center of both ends of the first main roller and is mounted on the left and right partition walls. Here, the first central shaft is connected to bearings installed on the left and right partition walls so that it can rotate on its axis by a driving force transmitted from the first drive motor 150.

[0034] The second rotating roller 120, together with the first rotating roller 110, supports both ends of the conveyor belt 130 and rotates axially in conjunction with the rotation of the conveyor belt 130. It can consist of a second main roller that contacts the conveyor belt 130 and moves in conjunction with the rotation of the conveyor belt 130, and a second central shaft that protrudes from the center of both ends of the second main roller and is mounted on the left and right partition walls. Here, the second central shaft is connected to bearings installed on the left and right partition walls so that it can rotate axially due to the rotational force transmitted from the conveyor belt 130.

[0035] The conveyor belt 130 consists of an endless track and provides a space for bagged products fed in from the conveyor belt in front to be placed on, and transfers the bagged products to the conveyor belt in the rear.

[0036] The first main gear 140 is fixed to the first rotating roller 110 or the second rotating roller 120 in order to transmit the driving force of the first drive motor 150 to the first rotating roller 110 or the second rotating roller 120, and may be provided on the first rotating roller 110 or the second rotating roller 120 outside the conveyor belt 130, or on the first rotating roller 110 or the second rotating roller 120 inside the conveyor belt 130.

[0037] The first drive motor 150 generates a driving force and transmits it to the first main gear 140 via a rotating shaft pulley coupled to the rotating shaft. Here, the rotating shaft pulley meshes with the first main gear 140 and transmits the driving force of the rotating shaft to the first main gear 140.

[0038] Figure 6 is a cross-sectional view showing a flattening device for bagged products according to the present invention, and Figure 7 is a plan view illustrating the compression roller of the flattening device for bagged products according to the present invention.

[0039] Referring to Figures 2 to 7, the flattening apparatus for bagged products according to the present invention includes a dispersion induction section 200.

[0040] The aforementioned dispersion guide unit 200 is installed inside the conveyor belt 130 and applies impact to bagged products that pressurize the conveyor belt 130 so that the conveyor belt 130 flexes, among the bagged products moving along the conveyor belt 130.

[0041] In a first embodiment, the distributed guide unit 200 according to the present invention includes a first drive shaft 212 installed at a predetermined interval between a first rotating roller 110 and a second rotating roller 120, a second main gear 220 installed on the first drive shaft 212, a second drive motor 230 connected to the second main gear 220 for transmitting driving force, and a rotating blade 240 installed on the first drive shaft 212 and working in conjunction with the first drive shaft 212 to supply external force to a bag packaging product that is bent due to unevenly distributed contents.

[0042] As a second embodiment, the distributed guidance unit 200 according to the present invention includes first and second drive shafts 212 and 214 installed at a predetermined interval between the first rotating roller 110 and the second rotating roller 120, a second main gear 220 installed on the first drive shaft 212, a second drive motor 230 connected to the second main gear 220 and transmitting driving force, drive force transmission gears 252, 254, and 256 installed at one end of the first and second drive shafts 212 and 214 respectively, a chain 260 installed so as to wrap around each drive force transmission gear 252, 254, and 256 so as to move in conjunction with the rotation of the first drive shaft 212 to the second drive shaft 214, and a rotating blade 240 installed on each drive shaft 212, 214, and 216 and moving in conjunction with each drive shaft 212, 214, and 216 to supply external force to a bag packaging product that is bent due to uneven contents.

[0043] The first drive shaft 212 rotates in accordance with the driving force transmitted from the second drive motor 230, and as shown in Figure 7, it is mounted on the left and right partition walls between the first rotating roller 110 and the second rotating roller 120. Here, the first drive shaft 212 can be connected to bearings installed on the left and right partition walls so that it can rotate in accordance with the driving force transmitted from the second drive motor 230.

[0044] The second drive shaft 214 rotates axially due to rotational force transmitted from the first drive shaft 212 via the chain 260, and is mounted on the left and right bulkheads so as to be parallel to the first drive shaft 212, as shown in Figure 7. Here, the second drive shaft 214 can be connected to bearings installed on the left and right bulkheads so that it can rotate axially due to the rotational force transmitted from the chain 260.

[0045] If necessary, the distributed guide unit 200 according to the present invention may further include a third drive shaft 216. Such a third drive shaft 216 rotates axially by a rotational force transmitted from the first drive shaft 212 via a chain 260, and is mounted on the left and right bulkheads so as to be arranged parallel to the first drive shaft 212 and the second drive shaft 214, as shown in Figure 7. Here, the third drive shaft 216 can be connected to bearings installed on the left and right bulkheads so as to be able to rotate axially by the rotational force transmitted from the chain 260.

[0046] The second main gear 220 is fixed to the first drive shaft 212 in order to transmit the driving force of the second drive motor 230 to the first drive shaft 212, and may be mounted on the first drive shaft 212 outside the conveyor belt 130, or on the first drive shaft 212 inside the conveyor belt 130.

[0047] The second drive motor 230 generates a driving force and transmits it to the second main gear 220 via a second rotating shaft pulley coupled to its own rotating shaft. Here, the second rotating shaft pulley meshes with the second main gear 220 and transmits the driving force of the rotating shaft to the second main gear 220.

[0048] The aforementioned drive force transmission gears are installed at one end of the first drive shaft 212, the second drive shaft 214, and the third drive shaft 216, respectively, in order to transmit the rotational force of the first drive shaft 212 to the second drive shaft 214 and the third drive shaft 216. Spur gears or the like can be used.

[0049] For example, the first drive shaft 212 has a second main gear 220 installed at one end, receiving driving force from the second drive motor 230, and a first driving force transmission gear 252 installed at the other end opposite to the first end. The second drive shaft 214 has its transmission gear installed at the other end so that it is aligned with the first driving force transmission gear 252. The third drive shaft 216 has its transmission gear installed at the other end so that it is aligned with the first and second driving force transmission gears 252 and 254.

[0050] The chain 260 is installed to enclose the first drive shaft 252, the second drive shaft 254, and the third drive shaft 256 so that the second drive shaft 214 and the third drive shaft 216 can rotate in the same direction as the first drive shaft 212 as the first drive shaft 212 rotates.

[0051] If necessary, the distributed guide unit 200 according to the present invention may be equipped with a support shaft 270 with a rotating gear, separate from the first, second, and third drive shafts 212, 214, and 216, as shown in Figure 4, so as to be able to stably maintain the tension of the chain 260. Here, the chain 260 is installed so as to surround the first, second, and third drive force transmission gears 252, 254, and 256 and the rotating gear.

[0052] The rotor blades 240 are installed on each drive shaft 212, 214, and 216 to supply external force so that the bagged product has a curve and the contents that are unevenly distributed in a part of the bagged product can be distributed.

[0053] Such a rotor blade 240 is preferably configured to rotate in the opposite direction to the rotation direction of the conveyor belt 130 in order to improve the dispersion effect of the contents. For this purpose, the second drive motor 230 transmits driving force to the first drive shaft 212 such that the first drive shaft 212 rotates in the opposite direction to the first and second rotating rollers 110 and 120.

[0054] Furthermore, it is preferable that the rotor blades 240 are formed to have a length shorter than the diameters of the first and second rotating rollers 110 and 120 so as not to come into contact with the non-flexible conveyor belt 130. For example, when a bagged product with contents uniformly dispersed and not causing flexing of the conveyor belt 130 passes through the belt conveyor 100, contact between the rotor blades 240 and the conveyor belt 130 is blocked, preventing damage to the conveyor belt 130. Also, when a bagged product with contents densely packed in a flexed manner passes through the belt conveyor 100, the pressurized section 300 causes a portion of the bagged product exceeding the standard thickness range to move into the rotation area of ​​the rotor blades 240, where it collides with the rotor blades 240.

[0055] In one embodiment, the rotor blade 240 according to the present invention may be configured to include a straight bar 242 that is coupled to each drive shaft 212, 214, and 216 and rotates in the same direction as the drive shafts. Here, the straight bar 242 may be formed such that the end that contacts the conveyor belt 130 has a hemispherical structure.

[0056] In another embodiment, the rotor blade 240 according to the present invention may be configured as shown in Figures 6 and 7, to include a straight bar 242 that is coupled to each drive shaft 212, 214, and 216 and rotates in the same direction as the drive shaft, and protective rollers 244 provided at both ends of the straight bar 242 that come into contact with the conveyor belt 130, so as to prevent damage to the conveyor belt 130 when the rollers come into contact with the conveyor belt 130.

[0057] More specifically, the protective roller 244 may be configured to include a head portion having a diameter that is larger than the diameter of the end of the straight bar 242, so that the end of the rotating straight bar 242 does not come into direct contact with the conveyor belt 130, and a main body portion that protrudes from the center of the head portion and fits onto the end of the straight bar 242.

[0058] Here, a first helical portion can be formed inside the through hole of the straight bar 242 into which the main body portion is inserted, and a second helical portion can be formed on the outer circumferential surface of the main body portion to be assembled with the first helical portion.

[0059] Furthermore, if a helical portion is not formed inside the through-hole of the straight bar 242 into which the main body is inserted, the protective roller 244 may be configured to further include a nut portion. Such a nut portion is assembled to a thread formed at the end of the main body and serves to fix the main body to the straight bar 242.

[0060] If necessary, the head portion may be equipped with cushioning material such as rubber or sponge along its outer surface to reduce damage to the conveyor belt 130 when it comes into contact with the conveyor belt 130.

[0061] In this way, the protective roller 244 contacts the conveyor belt 130 instead of the straight bar 242, thus providing the effect of minimizing damage to the conveyor belt 130.

[0062] The distributed guide unit 200 according to the present invention may be equipped with a protective box 280 in the left or right partition wall that surrounds the first drive shaft 212, second drive shaft 214, third drive shaft 216, and chain 260, in order to protect them from dust, external impacts, etc.

[0063] Referring to Figures 2 to 7, the flattening device for bagged products according to the present invention includes a pressurizing section 300.

[0064] The pressurizing unit 300 is installed on an outer frame 400 located above the belt conveyor 100 so as to be separated from the belt conveyor 100, and pressurizes the bagged products so that different pressures are applied to the bagged products according to the thickness of the bagged products from top to bottom.

[0065] To this end, the pressurizing unit 300 can be positioned at a distance from the conveyor belt 130 by the same length as the standard thickness of the bagged product, so that the bagged product does not come into contact with the dispersion guide unit 200 when the flattened standard-state bagged product is transported via the conveyor belt 130. For example, if the top and bottom thickness of the flattened standard-state bagged product is 50 mm, the pressurizing unit 300 can be installed on an outer frame 400 located above the conveyor belt 130 so as to be 50 mm away from the conveyor belt 130.

[0066] Thus, when the pressurizing unit 300 is installed 50 mm above the conveyor belt 130, if the thickness of the bent portion of the bagged product being transported via the conveyor belt 130 is 80 mm, the pressurizing unit 300 moves the bent portion 30 mm below the reference line so that the bent portion contacts the rotor blade 240. If the thickness of the bagged product being transported via the conveyor belt 130 is uniformly 50 mm, the pressurizing unit 300 allows the bagged product to pass through without pressurizing it in the direction of the dispersion guide unit 200.

[0067] In one embodiment, the pressurizing unit 300 according to the present invention may be composed of a housing capable of pressing a bagged product that is moving between it and the conveyor belt 130.

[0068] In another embodiment, the pressurizing unit 300 according to the present invention may be configured to include a pressurizing roller 310 that rotates on an axis so that the bagged products can move smoothly at a predetermined speed together with the conveyor belt 130. More specifically, the pressurizing unit 300 may be configured to include a pressurizing roller 310 installed in the same direction as the width direction of the conveyor, a third main gear 320 installed on the pressurizing roller 310, and a third drive motor 330 that transmits driving force to the third main gear 320 so that the pressurizing roller 310 rotates in the opposite direction to the first and second rotating rollers. Such a pressurizing roller 310 and third drive motor 330 are installed in the housing.

[0069] The pressure roller 310 is positioned at a distance from the conveyor belt 130 by a length equal to the standard thickness of the bagged product, so that the bagged product does not come into contact with the dispersion guide section 200 when the flattened, standard-state bagged product is transported via the conveyor belt 130.

[0070] The pressure roller 310 may be equipped with a cushioning cover 315 made of sponge or the like on its outer surface that comes into contact with the bagged product, so as not to damage the bagged product when it comes into contact with the bagged product.

[0071] Referring to Figures 2 to 5, the flattening device for bagged products according to the present invention may further include a rotating rod 500 and a rotating handle 600.

[0072] The rotating rod 500 raises and lowers the pressurizing section 300 so that the distance between it and the conveyor belt 130 is adjusted in response to an external force provided from the outside. It is assembled into a spiral mounting hole in the outer frame 400 and moves up and down in accordance with the rotation of the shaft. For this purpose, the outer surface of the rotating rod 500 is provided with a spiral portion corresponding to the spiral portion formed in the spiral mounting hole. The lower end of the rotating rod 500 is connected to the pressurizing section 300, and it raises and lowers the pressurizing section 300 in accordance with the rotation of the shaft.

[0073] The rotary handle 600 is installed at the upper end of the rotary rod 500 so that the external force of the administrator is smoothly transmitted to the rotary rod 500. It is formed to have a larger diameter than the rotary rod 500 and determines the axial rotation direction of the rotary rod 500 according to the direction of the external force provided by the administrator. For example, when the rotary handle 600 rotates clockwise, the rotary rod 500 also rotates clockwise, and when the rotary handle 600 rotates counterclockwise, the rotary rod 500 also rotates counterclockwise.

[0074] While preferred embodiments of the present invention have been described above with reference to the present invention, those skilled in the art will understand that the present invention can be modified and altered in various ways without departing from the spirit and scope of the invention as set forth in the following claims.

Claims

1. A belt conveyor including a first rotating roller installed in the width direction of the conveyor at the leading edge of the conveyor, a second rotating roller installed parallel to the first rotating roller behind the first rotating roller, a conveyor belt installed so as to enclose the first and second rotating rollers, a first main gear installed on the first or second rotating roller, and a first drive motor connected to the first main gear and transmitting driving force, A dispersion guide unit is installed inside the belt conveyor and supplies external force so that the contents of the bagged product being transported via the conveyor belt are dispersed inside the bagged product. A flattening device for bagged products, comprising a pressurizing unit installed above the belt conveyor so as to be separated from the belt conveyor, and which pressurizes the bagged products being transported via the belt conveyor in the direction of the dispersion guide unit.

2. The aforementioned distributed induction unit is A flattening device for a bagged product according to claim 1, comprising: a first drive shaft installed at a predetermined interval between the first rotating roller and the second rotating roller; a second main gear installed on the first drive shaft; a second drive motor connected to the second main gear for transmitting driving force; and a rotating blade installed on the first drive shaft and linked to the first drive shaft to supply external force to a bagged product that is bent due to uneven contents.

3. The aforementioned distributed induction unit is A flattening device for bagged products according to claim 1, comprising: first and second drive shafts installed at a predetermined interval between a first rotating roller and a second rotating roller; a second main gear installed on the first drive shaft; a second drive motor connected to the second main gear and transmitting driving force; a driving force transmission gear installed at one end of each of the first and second drive shafts; a chain installed so as to enclose each driving force transmission gear so as to move in conjunction with the rotation of the first drive shaft; and rotating blades installed on each drive shaft and moving in conjunction with each drive shaft to supply external force to bagged products that have bends due to uneven contents.

4. The aforementioned rotor blade is A flattening device for bagged products according to claim 2 or 3, characterized in that it is formed to have a length shorter than the diameter of the first and second rotating rollers so as not to come into contact with a non-flexible conveyor belt.

5. The aforementioned rotor blade is A flattening device for bagged products according to claim 2 or 3, characterized by including a straight bar coupled to each drive shaft and rotating in the same direction as the drive shaft, and protective rollers provided at both ends of the straight bar and in contact with the conveyor belt so as to prevent damage to the conveyor belt when it comes into contact with the conveyor belt.

6. The pressurizing section is The flattening apparatus for bagged products according to claim 1, characterized by including a pressure roller installed in the same direction as the width direction of the conveyor, a third main gear installed on the pressure roller, and a third drive motor that transmits driving force to the third main gear so that the pressure roller rotates in the opposite direction to the first and second rotating rollers.

7. The aforementioned pressure roller The flattening device for bagged products according to claim 6, characterized in that, when the flattened, standard-state bagged products are transported via the conveyor belt, the conveyor belt is separated from the bagged products by a length equal to the standard thickness of the bagged products so that the bagged products do not come into contact with the dispersion guide section.

8. An outer frame that provides space for the installation of the belt conveyor and the distributed guide unit, and has a spiral assembly hole formed at its upper end, A rotating rod is assembled into the aforementioned spiral assembly hole, its lower end connected to the pressurizing section, and which raises and lowers the pressurizing section in accordance with the rotation of the shaft, The flattening device for bagged products according to claim 1, further comprising a rotating handle installed at the upper end of the rotating rod, which transmits an external force to the rotating rod so that the rotating rod can rotate on an axis.

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