Conveying device for sealed plastic packaging bags

Abstract

The utility model relates to a conveying device for sealed plastic packaging bags. The conveying device comprises a conveying support, a lower conveying mechanism and an upper conveying mechanism. The lower conveying mechanism comprises a pair of lower belt rollers and a plurality of lower conveying belts; the upper conveying mechanism comprises an upper driving roller, a plurality of upper conveying belts and a pressing mechanism; one end of the upper driving roller is connected with a second motor; the pressing mechanism comprises a support, an upper driven roller and a pair of air cylinders. One end of the support is provided with a hinge shaft, and the support is hinged into the conveying support through the hinge shaft. The upper driven roller is horizontally and rotationally arranged at the front end of the bracket; two ends of the upper conveyor belt are sleeved between the upper driving roller and the upper driven roller; the two sides of the support extend towards the outer side of the conveying support to form connecting parts. The two air cylinders are hinged to the two sides of the conveying support, and the ends of piston rods of the air cylinders are hinged to the corresponding connecting parts respectively. By means of the downward pressing mechanism, the sealed plastic packaging bag is conveyed between the upper conveying belt and the lower conveying belt to be conveyed.

Description

Technical Field

[0001] This utility model relates to the field of film composite auxiliary equipment technology, and in particular to a conveying device for sealing plastic packaging bags. Background Technology

[0002] Plastic packaging bags are containers made primarily of plastic, used to package various items for convenient transportation, storage, and use. Their main raw materials include synthetic polymer resins such as polypropylene, polyester, and nylon; some products may contain added polyethylene and polyvinyl chloride. They are widely used in daily life and industrial production, covering scenarios such as general item packaging, food vacuum packaging, and chemical product loading. For example, food packaging bags must meet specific safety standards, while woven bags are mostly used for items bearing greater weight. They are processed through steps such as film blowing, printing, and bag making. Some recyclable packaging bags are made from recycled plastics through processes such as sorting, washing, and granulation.

[0003] After the plastic bags are sealed, they need to be pushed onto a conveyor for transport. Because the plastic bags are very thin, a pusher device is not effective in pushing them onto the conveyor, and if an air blowing device is used, the bags are easily blown away.

[0004] Therefore, it is desirable to provide a conveying device for sealing plastic packaging bags in order to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to provide a conveying device for sealing plastic packaging bags, which uses a pressing mechanism to send the sealed plastic packaging bags between upper and lower conveyor belts for conveying.

[0006] To achieve the above-mentioned purpose of the utility model, a conveying device for sealing plastic packaging bags is provided, including a conveying bracket, a lower conveying mechanism and an upper conveying mechanism;

[0007] One end of the conveying bracket is the feeding end, and the other end is the discharging end;

[0008] The lower conveying mechanism includes a pair of lower belt rollers and several lower conveyor belts;

[0009] The pair of lower belt rollers are respectively horizontally rotatably mounted at the feed end and discharge end of the conveyor support;

[0010] Several of the lower conveyor belts are sequentially and equally spaced between a pair of lower belt rollers;

[0011] In one of the pair of lower belt rollers, each of the lower belt rollers is connected to a first drive motor;

[0012] The upper conveying mechanism includes an upper drive roller, several upper conveyor belts, and a lower pressing mechanism;

[0013] The upper active roller is horizontally rotatably mounted at the discharge end of the conveyor bracket and is located directly above the lower belt roller at the same end.

[0014] A second motor is connected to one end of the upper drive roller;

[0015] The pressing mechanism includes a support, an upper driven roller, and a pair of cylinders;

[0016] One end of the bracket is provided with a hinge shaft, and the bracket is hinged to the conveying bracket through the hinge shaft;

[0017] The upper driven roller is horizontally and rotatably mounted at the front end of the support and close to the feed end of the conveying support.

[0018] Several of the upper conveyor belts are respectively fitted at both ends between the upper driving roller and the upper driven roller;

[0019] Both sides of the bracket extend outwards towards the outside of the conveying bracket to form a connecting part;

[0020] The two cylinders are hinged to both sides of the conveying bracket, and the ends of the piston rods of the two cylinders are respectively hinged to the corresponding connecting parts;

[0021] The two cylinders are arranged symmetrically.

[0022] Preferably, a first support roller is provided on the conveying bracket near the discharge end, and the first support roller is horizontally and rotatably mounted on the conveying bracket;

[0023] The first support roller is fitted onto all of the upper conveyor belts.

[0024] Furthermore, the conveying support is also provided with a second support roller;

[0025] The second support roller is located between the first support roller and the pressing mechanism;

[0026] The conveying bracket has horizontal grooves on both sides along its length, and the grooves penetrate the side plates of the conveying bracket.

[0027] The core roller of the second support roller passes through the long grooves on both sides of the conveyor bracket at both ends, and nuts are threaded onto both ends of the core roller; the second support roller is sleeved on all of the upper conveyor belts.

[0028] Furthermore, racks are fixed along the length of the inner walls on both sides of the conveying bracket, and the racks are located directly below the long groove on the same side;

[0029] The second support roller has gears at both ends of its core roller, and the gears mesh with a rack on the same side.

[0030] Furthermore, the rear end of the bracket is horizontally and rotatably equipped with a first pressure roller, which is located between the second support roller and the feed end of the conveying bracket;

[0031] The first lower pressure roller is in contact with the upper surface of all the upper conveyor belts;

[0032] The support is also horizontally and rotatably equipped with a second lower pressure roller, which is located between the first lower pressure roller and the feed end of the conveyor support, and the second lower pressure roller is in contact with all of the upper conveyor belts.

[0033] The advantages of this plastic packaging bag sealing and conveying device compared with the prior art are as follows:

[0034] (1) By setting an upper conveying mechanism and a lower conveying mechanism on the conveying support, and setting a pressing mechanism on the upper conveying mechanism near the feed end of the conveying support, the plastic packaging bag after sealing is conveyed to the lower conveying belt by the friction between the upper and lower conveying belts and the sealed plastic packaging bag, and then conveyed to the designated position.

[0035] (2) Simple structure and easy to use. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the connection between the lower conveying mechanism and the conveying support in this embodiment;

[0037] Figure 2 This is a schematic diagram of a plastic packaging bag sealing and conveying device according to this embodiment;

[0038] Figure 3 for Figure 2 Enlarged view of the central area. Detailed Implementation

[0039] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0040] This embodiment of a plastic packaging bag sealing and conveying device includes a conveying bracket 1, a lower conveying mechanism and an upper conveying mechanism.

[0041] like Figure 1 As shown, one end of the conveying bracket 1 is the feeding end 2, and the other end is the discharging end 3.

[0042] like Figure 1As shown, the lower conveying mechanism includes a pair of lower belt rollers 4 and several lower conveyor belts 5; the pair of lower belt rollers 4 are respectively horizontally rotatably arranged at the feed end 2 and the discharge end 3 of the conveying bracket 1. Several lower conveyor belts 5 are sequentially and equally spaced between the pair of lower belt rollers 4; in the pair of lower belt rollers 4, any one of the lower belt rollers is connected to a first drive motor 6, and under the drive of the first drive motor 6, the lower belt roller 4 is rotated, thereby realizing the conveying of the lower conveyor belts 5.

[0043] like Figure 2 As shown, the upper conveying mechanism includes an upper drive roller 7, several upper conveyor belts 8, and a lower pressing mechanism; the upper drive roller 7 is horizontally rotatably disposed at the discharge end 3 of the conveying bracket 1, and is located directly above the lower belt roller 4 at the same end; one end of the upper drive roller 7 is connected to a second motor 9, and the upper drive roller 7 rotates under the drive of the second motor 9; the lower pressing mechanism includes a bracket 10, an upper driven roller 11, and a pair of cylinders 12; one end of the bracket 10 is provided with a hinge shaft 13, and the bracket 10 is hinged to the conveying bracket 1 through the hinge shaft 13; the upper driven roller 11 is horizontally and rotatably disposed at the front end of the bracket 10, and is close to the feed end 2 of the conveying bracket 1; the two ends of the several upper conveyor belts 8 are respectively sleeved between the upper drive roller 7 and the upper driven roller 11.

[0044] Both sides of the bracket 10 extend outward to form connecting parts 14; the two cylinders 12 are hinged to both sides of the conveying bracket 1, and the ends of the piston rods of the two cylinders 12 are respectively hinged to the corresponding connecting parts 14; the two cylinders 12 are symmetrically arranged.

[0045] When the above-mentioned conveying device is working, the feed end 2 of the conveying bracket 1 is close to the discharge end of the sealing equipment. After the sealing equipment seals the plastic packaging bag, the piston rods of the cylinders 12 on both sides of the conveying bracket 1 retract, causing the upper driven roller 11 to move downward. In this way, the upper conveyor belt 8 and the lower conveyor belt 5 are attached to the upper and lower surfaces of the plastic packaging bag, driving the plastic packaging bag into the area between the upper conveyor belt 8 and the lower conveyor belt 5 for conveying.

[0046] In this embodiment, a first support roller 15 is provided on the conveying bracket 1 near the discharge end 3. The first support roller 15 is horizontally and rotatably mounted on the conveying bracket 1. The first support roller 15 is sleeved on all the upper conveyor belts 8. This arrangement provides a certain tension to the upper conveyor belts 8 to prevent them from loosening.

[0047] Furthermore, in this embodiment, the conveying bracket 1 is also provided with a second support roller 16; the second support roller 16 is located between the first support roller 15 and the pressing mechanism; the two sides of the conveying bracket 1 are provided with horizontal long grooves 17 along their length direction, and the long grooves 17 penetrate through the side plates of the conveying bracket 1; both ends of the core roller 18 of the second support roller 16 pass through the long grooves on both sides of the conveying bracket 1, and the two ends of the core roller 18 are threaded with nuts 19; the second support roller 16 is sleeved on all the upper conveyor belts 8; with this arrangement, it can slide on the long grooves 17, thereby adjusting the position of the second support roller 16, further effectively opening the upper conveyor belts 8, and ensuring their normal operation.

[0048] Furthermore, in this embodiment, as Figure 2 and Figure 3 As shown, racks 20 are fixed along the length of the inner walls on both sides of the conveying bracket 1, and the racks 20 are located directly below the long groove 17 on the same side; both ends of the core roller 18 of the second support roller 16 are provided with gears 21, and the gears 21 mesh with the racks 20 on the same side; this arrangement can effectively ensure that the second support roller 16 is always perpendicular to the conveying direction of the plastic packaging belt when it moves on the long groove 17, ensuring that the second support roller 16 can work normally.

[0049] In this embodiment, a first downward pressure roller 22 is horizontally and rotatably mounted at the rear end of the support 10. The first downward pressure roller 22 is located between the second support roller 16 and the feed end 2 of the conveyor support 1. The first downward pressure roller 22 is in contact with the upper surface of all the upper conveyor belts 8. A second downward pressure roller 23 is also horizontally and rotatably mounted on the support 10. The second downward pressure roller 23 is located between the first downward pressure roller 22 and the feed end 2 of the conveyor support 1, and the second downward pressure roller 23 is in contact with all the upper conveyor belts 8. With this configuration, when the support 10 rotates, the first downward pressure roller 22 and the second downward pressure roller 23 press down on the upper conveyor belts 8, which acts as a limit to them and ensures that they can work normally.

[0050] The preferred embodiments of this utility model have been described in detail above, but this utility model is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this utility model, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A conveying device for sealing plastic packaging bags, characterized in that, Includes a conveyor support, a lower conveyor mechanism, and an upper conveyor mechanism; One end of the conveying bracket is the feeding end, and the other end is the discharging end; The lower conveying mechanism includes a pair of lower belt rollers and several lower conveyor belts; The pair of lower belt rollers are respectively horizontally rotatably mounted at the feed end and discharge end of the conveyor support; Several of the lower conveyor belts are sequentially and equally spaced between a pair of lower belt rollers; In one of the pair of lower belt rollers, each of the lower belt rollers is connected to a first drive motor; The upper conveying mechanism includes an upper drive roller, several upper conveyor belts, and a lower pressing mechanism; The upper active roller is horizontally rotatably mounted at the discharge end of the conveyor bracket and is located directly above the lower belt roller at the same end. A second motor is connected to one end of the upper drive roller; The pressing mechanism includes a support, an upper driven roller, and a pair of cylinders; One end of the bracket is provided with a hinge shaft, and the bracket is hinged to the conveying bracket through the hinge shaft; The upper driven roller is horizontally and rotatably mounted at the front end of the support and close to the feed end of the conveying support. Several of the upper conveyor belts are respectively fitted at both ends between the upper driving roller and the upper driven roller; Both sides of the bracket extend outwards towards the outside of the conveying bracket to form a connecting part; The two cylinders are hinged to both sides of the conveying bracket, and the ends of the piston rods of the two cylinders are respectively hinged to the corresponding connecting parts; The two cylinders are arranged symmetrically.

2. The conveying device for sealing plastic packaging bags as described in claim 1, characterized in that, The conveying support is provided with a first support roller near the discharge end. The first support roller is horizontally and rotatably mounted on the conveying support. The first support roller is fitted onto all of the upper conveyor belts.

3. The conveying device for sealing plastic packaging bags as described in claim 2, characterized in that, The conveying support is also equipped with a second support roller; The second support roller is located between the first support roller and the pressing mechanism; The conveying bracket has horizontal grooves on both sides along its length, and the grooves penetrate the side plates of the conveying bracket. The core roller of the second support roller passes through the long grooves on both sides of the conveyor bracket at both ends, and nuts are threaded onto both ends of the core roller; the second support roller is sleeved on all of the upper conveyor belts.

4. The plastic packaging bag sealing and conveying device as described in claim 3, characterized in that, The conveying bracket has racks fixed along its length on both inner walls, and the racks are located directly below the long grooves on the same side. The second support roller has gears at both ends of its core roller, and the gears mesh with a rack on the same side.

5. The plastic packaging bag sealing and conveying device as described in claim 4, characterized in that, The rear end of the bracket is horizontally and rotatably equipped with a first pressure roller, which is located between the second support roller and the feed end of the conveying bracket. The first lower pressure roller is in contact with the upper surface of all the upper conveyor belts; The support is also horizontally and rotatably equipped with a second lower pressure roller, which is located between the first lower pressure roller and the feed end of the conveyor support, and the second lower pressure roller is in contact with all of the upper conveyor belts.

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