Automatic unpacking machine for small packing bags

Abstract

The utility model discloses an automatic bale breaker for small packaging bags. The automatic bale breaker comprises two conveying units used for clamping the packaging bags, a cutter unit used for cutting open the packaging bags and a loading bin used for bearing materials in the packaging bags. The packing bag unpacking machine has the technical effects that when unpacking is carried out, a packing bag only needs to be placed on the feeding table, the motor drives the conveying belt in the feeding table to move, so that the packing bag moves to the clamping pieces and is compressed into a proper thickness through the upper clamping piece and the lower clamping piece to enter the upper conveying belt and the lower conveying belt, and the conveying belts clamp the packing bag to pass through the cutter, so that the packing bag is broken; the materials fall into the loading bin, and the conveying belt clamps the packaging bags to continue to move forwards, so that the waste bags accurately fall into the waste bag bin. According to the unpacking machine, manpower and material resources consumed by unpacking can be effectively saved, materials and waste bags can be conveniently collected and treated, and the unpacking efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of small packing bag automatic unpacking machine. BACKGROUND

[0002] As packaging product for facilitating the transportation of various materials, packaging bag is generally made relatively firm to avoid breakage and damage during transportation. While this avoids damage during transportation, opening the packaging bag becomes a time-consuming and labor-intensive task when the material in the packaging bag needs to be used after transportation is completed. While there are mechanized unpacking devices that can quickly open large heavy packaging bags, the packaging bags for crop seeds such as rice seeds are small packaging bags of kilograms, which cannot be directly unpacked using existing heavy unpacking devices. This also results in the need to spend a lot of time and effort to remove the seed packaging bags before crop planting, increasing the consumption of manpower and resources. SUMMARY

[0003] To solve the technical problem that small packaging such as crop seed packaging bags cannot be unpacked using large heavy unpacking devices, resulting in additional consumption of manpower and resources, the utility model provides a small packaging bag automatic unpacking machine that can quickly and conveniently unpack small packaging bags and collect materials.

[0004] To achieve the above technical purpose, the technical solution of the utility model is,

[0005] A small packaging bag automatic unpacking machine includes two transmission units for clamping the packaging bag, a cutter unit for cutting the packaging bag, and a loading bin 14 for receiving the material in the packaging bag.

[0006] The two transmission units are arranged parallel to each other and leave a space matching the length of the packaging bag as the inner side for the packaging bag to move. Each transmission unit includes two conveyor belts, two conveyor motors, two support columns, and a controller 5. The two conveyor belts are arranged horizontally above and below, and a gap not greater than the thickness of the end of the packaging bag is left between the two conveyor belts to allow the end of the packaging bag to be clamped between the two conveyor belts. The movement direction of the opposite sides of the two conveyor belts is the same, and the movement direction of the two transmission units is consistent, so that the clamped packaging bag can move in one direction. The two conveyor motors are arranged in the upper and lower conveyor belts to drive the conveyor belts to rotate. The two support columns are arranged at the two ends of the two conveyor belts and are simultaneously connected and fixed to the outer sides of the two conveyor belts to leave an inner side for the packaging bag to move. The controller 5 is fixed to the outer side of the conveyor belt to control the conveyor motor.

[0007] The cutter unit comprises a lower support frame 11 and a lower cutter 9. One end of the lower support frame 11 is fixed to the outside of the conveying belt below one of the conveying units, and extends downward below the conveying belt and then horizontally to the inside of the conveying unit to pass the lower surface of the conveying belt, so that the lower support frame 11 is in L shape. The end of the other end of the lower support frame 11 is fixed with the lower cutter 9, and the cutting edge of the lower cutter 9 faces upward to cut the packaging bag.

[0008] The loading bin 14 is an open-top container, which is arranged between the four supporting columns of the two conveying units and below the cutter unit.

[0009] The conveying unit is further provided with an upper clamping piece 6 and a lower clamping piece 7 at the inlet position of the two conveying belts. The upper clamping piece 6 and the lower clamping piece 7 are both in the shape of a right-angled trapezoid, and are symmetrically installed at the end of the upper and lower conveying belts with the gap between the two conveying belts as the axis of symmetry. The oblique waist edges of the upper clamping piece 6 and the lower clamping piece 7 both face outward from the inlet of the conveying belt, and the distance between the upper clamping piece 6 and the lower clamping piece 7 matches the gap width between the two conveying belts.

[0010] The automatic unpacking machine for small packaging bags further comprises a feeding table 1, which is arranged at the inlet side of the conveying unit, and the upper surface of the feeding table 1 is flush with the lower bottom of the lower clamping piece 7 installed at the end of the lower conveying belt.

[0011] The feeding table 1 of the automatic unpacking machine for small packaging bags comprises a conveying belt and a feeding motor 2. The upper surface of the conveying belt moves in the same direction as the conveying unit. The feeding motor 2 is arranged on one side of the conveying belt to drive the conveying belt to move.

[0012] The cutter unit further comprises an upper support frame 10 and an upper cutter 8. The upper support frame 10 is the same as the lower support frame 11, and is symmetrically installed on the outside of the conveying belt above with the gap between the two conveying belts as the axis of symmetry. The end of the upper support frame 10 on the inside of the conveying unit is fixed with the upper cutter 8, and the cutting edge of the upper cutter 8 faces downward to cut the packaging bag.

[0013] The upper cutter 8 and the lower cutter 9 are both in the shape of a right-angled triangle, and the oblique edges of the upper cutter 8 and the lower cutter 9 both face the inlet direction of the conveying unit. The upper cutter 8 and the lower cutter 9 are tightly fitted or have a gap not greater than the thickness of the packaging bag.

[0014] The two support columns of the transmission unit installed with the cutter unit are fixed to the ground and cannot move, and the two support columns of the transmission unit not installed with the cutter unit are placed on the ground and can move.

[0015] The two support columns of the transmission unit installed with the cutter unit are fixed to the ground and cannot move, and the two support columns of the transmission unit not installed with the cutter unit are placed on the ground and can move.

[0016] The automatic unpacking machine for small packaging bags further comprises a waste bag bin 15, the waste bag bin 15 is an open-top container, and the waste bag bin 15 is arranged at the outlet of the two transmission units to receive the packaging bags after unpacking.

[0017] The technical effect of the utility model lies in that when unpacking, the packaging bag is only needed to be placed on the feeding table 1, the motor drives the conveying belt in the feeding table 1 to move, the packaging bag is moved to the clamping piece, the packaging bag is compressed to a suitable thickness by the upper and lower clamping pieces 7 and enters the upper and lower conveying belts 4, the conveying belt clamps the packaging bag to pass the cutter, the packaging bag is broken, the material falls into the charging bin 14, the conveying belt clamps the packaging bag to continue to move forward, and the waste bag falls into the waste bag bin 15 accurately. The utility model can effectively save the manpower and material resources consumed in unpacking, can conveniently collect and process the material and the waste bag, and greatly improves the unpacking efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of the utility model.

[0019] Figure 2 It is a whole structure top view of the utility model.

[0020] Figure 3 It is Figure 2 B-B sectional view.

[0021] 1 is a feeding table. 2 is a feeding motor. 3 is an upper conveying belt. 4 is a lower conveying belt. 5 is a controller. 6 is an upper clamping piece. 7 is a lower clamping piece. 8 is an upper cutter. 9 is a lower cutter. 10 is an upper support frame. 11 is a lower support frame. 12 is a front support column. 13 is a rear support column. 14 is a charging bin. 15 is a waste bag bin. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, purposes and effects achieved by the utility model easy to understand, the utility model is further described in combination with specific implementation manners.

[0023] Referring to Figures 1-3The automatic unpacking machine for small packaging bags comprises two transmission units for clamping the packaging bags, a cutter unit for cutting the packaging bags, and a loading bin 14 for receiving the materials in the packaging bags.

[0024] The two transmission units of the embodiment are arranged in parallel and leave a space matching the length of the packaging bags as the inner side for the movement of the packaging bags. Each transmission unit comprises two conveyors, two conveyor motors, two support columns, and a corresponding controller 5, which can be a common PLC controller or a similar device capable of realizing the control function. The two conveyors of the transmission unit are arranged horizontally and leave a gap not greater than the thickness of the end of the packaging bag between them, so that when the packaging bag enters the conveyors, the end of the packaging bag will be clamped in the middle of the two conveyors, and the movement direction of the opposite surface of the two conveyors is the same, that is, the lower surface of the upper conveyor 3 and the upper surface of the lower conveyor 4. Figure 1 For example, the lower surface of the upper conveyor 3 moves from the left to the right in the figure. The upper surface of the lower conveyor 4 moves from the left to the right in the figure. The movement directions of the two transmission units arranged on both sides are consistent, so that the upper and lower ends of the clamped packaging bag can move in the same direction. Two conveyor motors are arranged in the upper and lower conveyors to drive the conveyors to rotate, and two support columns are arranged at the ends of the two conveyors and are fixed to the outer sides of the two conveyors to leave the inner side for the movement of the packaging bags. The controller 5 is fixed to the outer side of the conveyor to control the conveyor motor.

[0025] In order to facilitate operation, the transmission unit of the embodiment is also provided with an upper clamping piece 6 and a lower clamping piece 7 at the inlet position of the two conveyors. The upper clamping piece 6 and the lower clamping piece 7 are both straight trapezoidal sheet bodies and are symmetrically installed at the ends of the upper and lower conveyors with the gap between the two conveyors as the axis of symmetry. The oblique waist edges of the upper clamping piece 6 and the lower clamping piece 7 are directed outward from the inlet of the conveyor, and the distance between the upper clamping piece 6 and the lower clamping piece 7 matches the gap width between the two conveyors, which facilitates the quick entry of the two ends of the packaging bag into the two conveyors of the transmission unit.

[0026] The cutter unit of the embodiment comprises a lower support frame 11 and a lower cutter 9. One end of the lower support frame 11 is fixed to the outer side of the conveying belt below one of the transmission units, and extends downward below the conveying belt and then horizontally to the inner side of the transmission unit to pass over the lower surface of the conveying belt, so that the lower support frame 11 is L-shaped. The end of the other end of the lower support frame 11 is fixed with the lower cutter 9, and the cutting edge of the lower cutter 9 faces upward to slit the packaging bag. When the packaging bag is clamped by the two conveying belts through the lower cutter 9, the packaging bag can be slit to achieve unpacking. In order to further ensure that the packaging bag is slit, the cutter unit of the embodiment further comprises an upper support frame 10 and an upper cutter 8. The upper support frame 10 is symmetrical to the lower support frame 11 with the gap between the two conveying belts as the axis of symmetry, and is symmetrically installed on the outer side of the conveying belt above. The end of the upper support frame 10 on the inner side of the transmission unit is fixed with the upper cutter 8, and the cutting edge of the upper cutter 8 faces downward to slit the packaging bag. In this way, through the clamping action of the upper cutter 8 and the lower cutter 9, it can be ensured that the packaging bag is slit at one time. The upper cutter 8 and the lower cutter 9 are both right-angled triangles of the same shape, and the hypotenuse of the upper cutter 8 and the lower cutter 9 both face the direction of the inlet of the transmission unit. The upper cutter 8 and the lower cutter 9 are in close contact or leave a gap not greater than the thickness of the packaging bag.

[0027] The loading bin 14 of the embodiment is an open-top container, which is arranged between the four supporting columns of the two transmission units and below the cutter unit, so that the material in the packaging bag falls into the loading bin 14 automatically due to gravity after the packaging bag is slit. In order to collect the waste packaging bags after unpacking, the embodiment further comprises a waste bag bin 15, which is an open-top container. The waste bag bin 15 is arranged at the outlet of the two transmission units to receive the packaging bags after unpacking. In this way, the packaging bags will fall into the waste bag bin 15 under the action of gravity after reaching the end of the transmission unit.

[0028] In order to facilitate operation and save labor, the embodiment further comprises a feeding table 1, which is arranged on the side of the inlet of the transmission unit, and the upper surface of the feeding table 1 is flush with the lower bottom of the lower clamping piece 7 arranged at the end of the conveying belt below. The feeding table 1 comprises a conveying belt and a feeding motor 2. The upper surface of the conveying belt moves in the same direction as the transmission unit, and the feeding motor 2 is arranged on one side of the conveying belt to drive the conveying belt to move. In this way, when unpacking, the packaging bag only needs to be placed on the feeding table 1, and the packaging bag will be conveyed to the conveying belt of the transmission unit by the conveying belt, thereby eliminating the operation of lifting the packaging bag by manpower to align the two ends of the packaging bag and the two transmission units and conveying the packaging bag into the conveying belt.

[0029] In the embodiment, two support columns of each conveying unit, wherein the support column close to the conveying unit entrance is the front support column 12, and the support column far from the conveying unit entrance is the rear support column 13, the cross-sectional area of the front support column 12 is larger than that of the rear support column 13. This is because the front support column 12 needs to support the weight of the packaging bag before unpacking, so a thicker support column is used, and after unpacking is completed, the weight of the waste packaging bag is lighter, so the rear support column 13 is relatively thin, which can save part of the manufacturing cost of the support column.

[0030] Because different types of packaging bags have different sizes, the two support columns of the conveying unit with the cutter unit in the embodiment are fixed on the ground and cannot move, and the two support columns of the conveying unit without the cutter unit are placed on the ground and can move. In this way, when unpacking packaging bags of various sizes, the conveying unit without the cutter unit can be moved appropriately to match the size of the packaging bag. And because the conveying unit with the cutter unit bears a larger counterforce when cutting the packaging bag, the conveying unit with the cutter unit is fixed in the embodiment to ensure that the conveying unit does not shake and fall over when unpacking.

[0031] In use, the packaging bag containing the material is first placed on the feeding table 1, the feeding motor 2 drives the conveyor belt in the feeding table 1 to move, so that the packaging bag moves to the clamping piece, the end of the packaging bag is compressed to an appropriate thickness by the clamping piece and introduced into the conveying unit, the controller 5 controls the steering and speed of the conveying unit, the conveying unit clamps the packaging bag to pass through the cutter, so that the packaging bag is broken and the material falls into the loading bin 14, and the upper and lower transmission belts continue to move forward with the packaging bag, so that the waste bag falls into the waste bag bin 15.

[0032] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above with a preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content to obtain equivalent embodiments with equivalent changes, without departing from the technical solution of the present application. Any modification, change, equivalent change and modification of the above embodiments, which does not depart from the technical solution of the present application, are still within the scope of the technical solution of the present application.

Claims

1. A small package bag automatic unpacking machine characterized by, The packaging bag cutting device comprises two transmission units for clamping the packaging bag, a cutter unit for cutting the packaging bag, and a loading bin (14) for receiving the material in the packaging bag. The two transmission units are arranged in parallel and leave a space matching the length of the packaging bag as the inner side for the movement of the packaging bag; each transmission unit comprises two conveyer belts, two conveyer motors, two support columns, and a controller (5); the two conveyer belts are arranged horizontally and leave a gap not greater than the thickness of the end of the packaging bag between the two conveyer belts, so that the end of the packaging bag can be clamped between the two conveyer belts; the movement direction of the opposite sides of the two conveyer belts is the same, and the movement direction of the two transmission units is consistent, so that the clamped packaging bag can move in one direction; the two conveyer motors are arranged in the upper and lower conveyer belts respectively to drive the conveyer belts to rotate; the two support columns are arranged at the two ends of the two conveyer belts and are fixed to the outer sides of the two conveyer belts at the same time to leave the inner side for the movement of the packaging bag; and the controller (5) is fixed to the outer side of the conveyer belt to control the conveyer motor. The cutter unit comprises a lower support frame (11) and a lower cutter (9); one end of the lower support frame (11) is fixed to the outer side of the conveyer belt of one of the transmission units at the lower side, extends downward below the conveyer belt, and then extends horizontally to the inner side of the transmission unit to pass over the lower surface of the conveyer belt, so that the lower support frame (11) is in L shape; the end of the other end of the lower support frame (11) is fixed with the lower cutter (9), and the cutting edge of the lower cutter (9) faces upward to cut the packaging bag. The loading bin (14) is an open-top container, which is arranged between the four support columns of the two transmission units and below the cutter unit.

2. The automatic unpacking machine for small packaging bags according to claim 1, characterized in that, The transmission unit is further provided with an upper clamping piece (6) and a lower clamping piece (7) at the inlet position of the two conveyer belts; the upper clamping piece (6) and the lower clamping piece (7) are both in the shape of a right-angled trapezoid and are symmetrically installed at the end of the upper and lower conveyer belts with the gap between the two conveyer belts as the axis of symmetry; the oblique waist edges of the upper clamping piece (6) and the lower clamping piece (7) both face the outer side of the inlet of the conveyer belt, and the distance between the upper clamping piece (6) and the lower clamping piece (7) matches the width of the gap between the two conveyer belts.

3. The automatic unpacking machine for small packaging bags according to claim 2, characterized in that, The device further comprises a feeding table (1), which is arranged at the inlet side of the transmission unit, and the upper surface of the feeding table (1) is flush with the lower bottom of the lower clamping piece (7) installed at the end of the lower conveyer belt.

4. The automatic unpacking machine for small packaging bags according to claim 3, characterized in that, The feeding table (1) comprises a conveyer belt and a feeding motor (2); the upper surface of the conveyer belt moves in the same direction as the transmission unit; and the feeding motor (2) is arranged at one side of the conveyer belt to drive the conveyer belt to move.

5. The automatic unpacking machine for small packaging bags according to claim 1, characterized in that, The cutter unit further comprises an upper support frame (10) and an upper cutter (8), the upper support frame (10) is symmetrical to the lower support frame (11) and is symmetrically installed outside the upper conveying belt with the gap between the two conveying belts as the axis of symmetry, the upper cutter (8) is fixed at the end of the upper support frame (10) inside the conveying unit, and the blade of the upper cutter (8) faces downward to slit the packaging bag.

6. A machine for automatically unpacking small packs according to claim 5, characterized in that, The upper cutter (8) and the lower cutter (9) are both right-angled triangles, and the hypotenuse of the upper cutter (8) and the lower cutter (9) both face the inlet direction of the conveying unit, and the upper cutter (8) and the lower cutter (9) are in close contact or have a gap not greater than the thickness of the packaging bag.

7. The automatic unpacking machine for small packaging bags according to claim 1, characterized in that, The two support columns of each conveying unit, wherein the support column close to the inlet of the conveying unit is the front support column (12), and the support column far from the inlet of the conveying unit is the rear support column (13), the cross-sectional area of the front support column (12) is larger than that of the rear support column (13).

8. The automatic unpacking machine for small packaging bags according to claim 1, characterized in that, The two support columns of the conveying unit with the cutter unit are fixed on the ground and cannot move, and the two support columns of the conveying unit without the cutter unit are placed on the ground and can move.

9. The automatic unpacking machine for small packaging bags according to claim 7, characterized in that, Further comprising a waste bag bin (15), the waste bag bin (15) is an open-top container, and the waste bag bin (15) is arranged at the outlet of the two conveying units to receive the packaging bags after unpacking.

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