Plastic bag flattening device

Abstract

The utility model discloses a plastic bag flattening device which comprises a working table, a first guide roller is arranged on the upper surface of the working table, a second guide roller is arranged on the side, away from the first guide roller, of the working table, a first motor is fixedly connected to the outer surface of the second guide roller, and a fixing base is fixedly connected to the upper surface of the working table. And a second motor is fixedly connected to the interior of the fixing base, the output end of the second motor is fixedly connected with a lead screw, and the outer surface of the lead screw is in threaded connection with a sliding block. The cooling roller and the flattening roller are arranged on the surface of the workbench, rotate together and can be adjusted in height along with the sliding block according to the wrinkling conditions of different plastic bags, the higher the height is, the tighter the tension of the plastic bags is, the closer the plastic bags are to an air outlet, the softening degree is higher, and after softening and straightening work, the plastic bags can be softened and straightened. And the cooling rollers can cool the plastic bags, so that the plastic bags are quickly formed, and the overall working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic bag flattening, in particular to a plastic bag flattening device. Background Art

[0002] A plastic bag is a bag made of plastic as the main raw material and is used to carry items. It is a packaging bag made of a thin and flexible plastic film and is commonly found in supermarkets, streets, department stores, garbage dumps, etc. The production process of plastic bags in the existing technology mainly includes shaping, flattening, slitting, and rolling processes.

[0003] A plastic bag processing smoothing device disclosed in the Chinese utility model patent application disclosure CN218640313U is provided with a smoothing device, which facilitates rolling and smoothing plastic bags of different sizes, and can adjust the distance between two pressing wheels according to the size of the plastic bag, thereby improving the smoothness and production efficiency of the smoothing device and improving the practicability of the device. However, the existing plastic bag smoothing device has a relatively simple structure, has a limited smoothing effect on the plastic bags, cannot be adjusted according to the wrinkles of different plastic bags, and has a low overall working efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a plastic bag flattening device to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plastic bag flattening device, comprising:

[0006] A workbench, wherein a first guide roller is arranged on the upper surface of the workbench, a second guide roller is arranged on a side of the workbench away from the first guide roller, a first motor is fixedly connected to the outer surface of the second guide roller, a fixed seat is fixedly connected to the upper surface of the workbench, a second motor is fixedly connected to the interior of the fixed seat, a lead screw is fixedly connected to the output end of the second motor, a sliding block is threadedly connected to the outer surface of the lead screw, a sliding groove is arranged on the outer surface of the fixed seat, an adjusting seat is fixedly connected to the outer surface of the sliding block, and the outer surface of the adjusting seat is slidably connected to the sliding groove;

[0007] A third motor is fixedly connected inside the adjustment seat, a first rotating shaft is fixedly connected to an output end of the third motor, a leveling roller is fixedly connected to an outer surface of the first rotating shaft, a first gear is fixedly connected to an outer surface of the first rotating shaft and located inside the adjustment seat, a transmission belt is meshedly connected to an outer surface of the first gear, a second gear is meshedly connected to a side surface of the transmission belt, a second rotating shaft is fixedly connected to an outer surface of the second gear, and a cooling roller is fixedly connected to an outer surface of the second rotating shaft;

[0008] A fixing block is fixedly connected to the upper surface of the fixing seat, a hot air blower is fixedly connected to the upper surface of the fixing block, and an air outlet is arranged at the lower side of the fixing block.

[0009] Preferably, a movable groove is provided on the lower side of the second guide roller.

[0010] Preferably, a bidirectional shaft motor is fixedly connected inside the movable slot.

[0011] Preferably, output ends on both sides of the bidirectional shaft motor are fixedly connected with threaded rods, and the threads on the surfaces of the two threaded rods are in opposite directions.

[0012] Preferably, the outer surface of the threaded rod is threadedly connected with a movable block, and the rotation of the threaded rod can drive the two movable blocks to move in opposite directions at the same time, which is convenient for driving the limit block to move, and the outer surface of the movable block is slidably connected to the movable groove.

[0013] Preferably, the upper surface of the movable block is fixedly connected to a limiting block, which can limit the second guide rollers of different sizes so that they remain neat when storing plastic bags and avoid uneven edges of the plastic bags. The lower surface of the limiting block is slidably connected to the workbench.

[0014] Preferably, the side surface of the limit block is movably connected to the second guide roller, and the second guide roller limits the plastic bag when it rolls up, so that its edges are flush, and the first motor, the second motor, the third motor, the hot air blower, and the bidirectional shaft motor are all connected to an external power supply.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] (1) This plastic bag flattening device is provided with a cooling roller and a flattening roller on the surface of a workbench. The two rollers rotate together and can follow the sliding block to adjust the height according to the wrinkles of different plastic bags. The higher the height, the tighter the tension of the plastic bag. The closer the plastic bag is to the air outlet, the higher the softening degree is. After softening and straightening, the cooling roller can cool the plastic bag to make it take shape quickly, thereby improving the overall work efficiency.

[0017] (2) This plastic bag leveling device sets limit blocks on both sides of the second guide roller. The limit blocks can move in opposite directions together with the movable block, thereby limiting the two sides of the second guide roller, so that the plastic bags can be kept neat when they are stored, avoiding the problem of uneven edges of the plastic bags, and improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2This is a schematic diagram of the internal structure of the fixing seat of the utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the adjustment seat of the utility model;

[0021] Figure 4 It is a structural schematic diagram of a workbench of the utility model.

[0022] In the figure: 1. workbench; 2. first guide roller; 3. second guide roller; 4. first motor; 5. fixed seat; 6. second motor; 7. lead screw; 8. sliding block; 9. sliding groove; 10. adjustment seat; 11. third motor; 12. first rotating shaft; 13. leveling roller; 14. first gear; 15. transmission belt; 16. second gear; 17. second rotating shaft; 18. cooling roller; 19. fixed block; 20. hot air blower; 21. air outlet; 22. movable groove; 23. bidirectional shaft motor; 24. threaded rod; 25. movable block; 26. limit block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 The utility model provides an embodiment: a plastic bag leveling device, including a workbench 1, a first guide roller 2 is arranged on the upper surface of the workbench 1, a second guide roller 3 is arranged on the side of the workbench 1 away from the first guide roller 2, and a first motor 4 is fixedly connected to the outer surface of the second guide roller 3. The first motor 4 can drive the second guide roller 3 to rotate, thereby pulling the plastic bag to move.

[0025] A fixed seat 5 is fixedly connected to the upper surface of the workbench 1, and a second motor 6 is fixedly connected inside the fixed seat 5. A lead screw 7 is fixedly connected to the output end of the second motor 6. The second motor 6 can drive the lead screw 7 to rotate. A sliding block 8 is threadedly connected to the outer surface of the lead screw 7. The rotation of the lead screw 7 can drive the sliding block 8 to move up and down. A sliding groove 9 is provided on the outer surface of the fixed seat 5. An adjusting seat 10 is fixedly connected to the outer surface of the sliding block 8. The outer surface of the adjusting seat 10 is slidably connected to the sliding groove 9. The sliding groove 9 can move with the sliding block 8, so as to adjust the tension of the plastic bag film. The tension is greater upwards, which drives the plastic bag film to be straightened.

[0026] A third motor 11 is fixedly connected to the inside of the adjustment seat 10, and a first rotating shaft 12 is fixedly connected to the output end of the third motor 11. A smoothing roller 13 is fixedly connected to the outer surface of the first rotating shaft 12. The smoothing roller 13 can adjust the tension of the plastic bag film by moving up and down. The higher the tension is, the tighter it is and the closer it is to the hot air, which can make the plastic bag film soft and make it easier to flatten it.

[0027] The outer surface of the first rotating shaft 12 is fixedly connected with the first gear 14 located inside the adjusting seat 10, and the outer surface of the first gear 14 is meshed with the transmission belt 15. The transmission belt 15 can connect the first gear 14 and the second gear 16, thereby driving the smoothing roller 13 and the cooling roller 18 to rotate together. The side surface of the transmission belt 15 is meshed with the second gear 16, and the outer surface of the second gear 16 is fixedly connected with the second rotating shaft 17, and the outer surface of the second rotating shaft 17 is fixedly connected with the cooling roller 18. The plastic bag film will become flat and soft after passing through the smoothing roller 13 and the air outlet 21, and then it can be cooled by the cooling roller 18 to quickly cool down and form.

[0028] A fixed block 19 is fixedly connected to the upper surface of the fixed seat 5, and a hot air blower 20 is fixedly connected to the upper surface of the fixed block 19. The hot air blower 20 blows hot air out through the air outlet 21 to locally heat the plastic bag, thereby ensuring that the plastic bag can be flattened by the smoothing roller 13 in a relatively soft state. An air outlet 21 is provided on the lower side of the fixed block 19, and the air outlet 21 is located directly above the smoothing roller 13, so that only the local plastic bag on the smoothing roller 13 can be heated.

[0029] A movable groove 22 is provided on the lower side of the second guide roller 3, and a bidirectional shaft motor 23 is fixedly connected inside the movable groove 22. Threaded rods 24 are fixedly connected to the output ends on both sides of the bidirectional shaft motor 23. The threads on the surfaces of the two threaded rods 24 are in opposite directions. The outer surfaces of the threaded rods 24 are threadedly connected with movable blocks 25. The rotation of the threaded rods 24 can drive the two movable blocks 25 to move in opposite directions at the same time, so as to drive the limit blocks 26 to move. The upper surface of the movable block 25 is fixedly connected with the limit blocks 26, which can limit the second guide rollers 3 of different sizes, so that they can remain neat when storing plastic bags and avoid uneven edges of the plastic bags.

[0030] The lower surface of the limit block 26 is slidably connected to the workbench 1, and the side surface of the limit block 26 is movably connected to the second guide roller 3. When the second guide roller 3 rolls up the plastic bag, it limits the position so that its edges are flush. The outer surface of the movable block 25 is slidably connected to the movable groove 22, and the first motor 4, the second motor 6, the third motor 11, the hot air blower 20, and the bidirectional axis motor 23 are all connected to an external power supply.

[0031] When the embodiment of the present application is in use: the plastic bag is passed under the fixing block 19, and the two ends are fixed on the first guide roller 2 and the second guide roller 3 respectively. At this time, the surface of the plastic bag is in contact with the smoothing roller 13 and the cooling roller 18, and the second motor 6 and the hot air blower 20 are started. The second motor 6 drives the lead screw 7 to rotate, so that the sliding block 8 drives the adjustment seat 10 to rise as a whole, so that the smoothing roller 13 and the cooling roller 18 rise to straighten and tighten the plastic bag. The height is adjusted according to the wrinkles of different plastic bags. The higher the height, the closer the plastic bag is to the air outlet 21, and the higher the degree of softening. After softening and straightening, it will continue to pass through the cooling roller 18, and the cooling roller 18 can cool the plastic bag to make it quickly take shape.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A plastic bag flattening device, characterized in that: include: A workbench (1), wherein a first guide roller (2) is arranged on the upper surface of the workbench (1), a second guide roller (3) is arranged on a side of the workbench (1) away from the first guide roller (2), the outer surface of the second guide roller (3) is fixedly connected to a first motor (4), a fixed seat (5) is fixedly connected to the upper surface of the workbench (1), a second motor (6) is fixedly connected inside the fixed seat (5), a lead screw (7) is fixedly connected to the output end of the second motor (6), a sliding block (8) is threadedly connected to the outer surface of the lead screw (7), a sliding groove (9) is arranged on the outer surface of the fixed seat (5), an adjustment seat (10) is fixedly connected to the outer surface of the sliding block (8), and the outer surface of the adjustment seat (10) is slidably connected to the sliding groove (9); A third motor (11) is fixedly connected inside the adjustment seat (10), an output end of the third motor (11) is fixedly connected to a first rotating shaft (12), an outer surface of the first rotating shaft (12) is fixedly connected to a leveling roller (13), an outer surface of the first rotating shaft (12) and located inside the adjustment seat (10) is fixedly connected to a first gear (14), an outer surface of the first gear (14) is meshingly connected to a transmission belt (15), a side surface of the transmission belt (15) is meshingly connected to a second gear (16), an outer surface of the second gear (16) is fixedly connected to a second rotating shaft (17), and an outer surface of the second rotating shaft (17) is fixedly connected to a cooling roller (18); A fixing block (19) is fixedly connected to the upper surface of the fixing seat (5), a hot air blower (20) is fixedly connected to the upper surface of the fixing block (19), and an air outlet (21) is provided on the lower side of the fixing block (19).

2. A plastic bag flattening device according to claim 1, characterized in that: A movable groove (22) is provided on the lower side of the second guide roller (3).

3. A plastic bag flattening device according to claim 2, characterized in that: A bidirectional shaft motor (23) is fixedly connected inside the movable slot (22).

4. A plastic bag flattening device according to claim 3, characterized in that: Threaded rods (24) are fixedly connected to the output ends on both sides of the bidirectional shaft motor (23).

5. A plastic bag flattening device according to claim 4, characterized in that: The outer surface of the threaded rod (24) is threadedly connected to a movable block (25), and the outer surface of the movable block (25) is slidably connected to the movable groove (22).

6. A plastic bag flattening device according to claim 5, characterized in that: The upper surface of the movable block (25) is fixedly connected to the limit block (26), and the lower surface of the limit block (26) is slidably connected to the workbench (1).

7. A plastic bag flattening device according to claim 6, characterized in that: The side surface of the limit block (26) is movably connected to the second guide roller (3), and the first motor (4), the second motor (6), the third motor (11), the hot air blower (20), and the bidirectional shaft motor (23) are all connected to an external power source.

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