Edge pressing device for food packaging

Abstract

The utility model relates to the technical field of food packaging, and discloses an edge pressing device for food packaging, which comprises a vertical plate, two rotating shafts rotatably penetrate through the outer surface of the vertical plate, the outer surfaces of the two rotating shafts are fixedly sleeved with support frames, the outer surfaces of the two rotating shafts are fixedly sleeved with flattening rollers, and the flattening rollers are arranged on the outer surfaces of the two rotating shafts. And the outer surface of the upper rotating shaft is fixedly sleeved with a limiting disc, the outer surface of the front side of the vertical plate is fixedly connected with a fixing plate, a plug pin is movably inserted into the outer surface of the fixing plate, and a plurality of limiting holes formed in a circumferential array mode are formed in the outer surface of the limiting disc. According to the packaging bag flattening device, force is applied through the supporting frames, the two supporting frames rotate in the opposite directions in cooperation with a second transmission wheel, a second belt and a first gear, and therefore the two flattening rollers move in the direction close to or away from each other, the distance between the two flattening rollers can be adjusted, and the flattening effect on a packaging bag is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of food packaging, in particular to a hemming device for food packaging. Background Technique

[0002] Food refers to various finished products and raw materials for human consumption or drinking, as well as items that are both food and traditional Chinese medicinal materials according to tradition. Currently, food often needs to be packaged during the production process. During the food packaging process, the automatic sealing of the packaging box is generally achieved through a cylinder. However, before the sealing film is sealed, it needs to be sorted out, and the sealing opening is flattened to facilitate packaging. A hemming device is required in this process.

[0003] The existing patent (publication number: CN207060543U) discloses a hemming device for food packaging, including a flattening mechanism. The flattening mechanism includes an upper shell and a lower shell symmetrically arranged up and down. A conveying device is arranged on one side of the flattening mechanism. Limiting plates are arranged on the opposite sides of the upper shell and the lower shell. The limiting plates are arranged on the side of the flattening mechanism close to the conveying device and extend away from the conveying device. Two parallel flattening rollers are arranged inside the upper shell close to the lower shell, and two parallel flattening rollers are also arranged inside the lower shell close to the upper shell. The four flattening rollers are all fixed on the inner walls of the upper shell and the lower shell through the first fixing rods. A second gear is also arranged inside the flattening mechanism through the second fixing rod. The structure of the utility model is simple and easy to operate, can flatten the packaging bag well, avoids the trouble and low efficiency of manual flattening, and has good popularization effect.

[0004] The above patent rotates the flattening rollers, which can flatten the opening of the packaging bag and transport the packaging bag at the same time. However, in the actual use process, the distance between the upper and lower flattening rollers is fixed and cannot be adjusted, which is not convenient for flattening various packaging bags, has certain limitations, and results in poor flattening effect when flattening the openings of some packaging bags. Therefore, a hemming device for food packaging is proposed. Utility Model Content

[0005] Aiming at the deficiencies of the prior art, the utility model provides a hemming device for food packaging to solve the problems mentioned in the above background technique.

[0006] To achieve the above object, the present utility model provides the following technical solution: A hemming device for food packaging, including a vertical plate, two rotating shafts rotatably penetrate through the outer surface of the vertical plate, support frames are fixedly sleeved on the outer surfaces of the two rotating shafts, rotating shafts rotatably penetrate through the opposite outer surfaces of the front and rear sides of the two support frames, flattening rollers are fixedly sleeved on the outer surfaces of the two rotating shafts, a limiting disk is fixedly sleeved on the outer surface of the upper rotating shaft, a fixing plate is fixedly connected to the front outer surface of the vertical plate, a plug pin is movably inserted into the outer surface of the fixing plate, and a number of limiting holes arranged in a circumferential array are formed on the outer surface of the limiting disk.

[0007] Furthermore, an L-shaped mounting plate is fixedly connected to the rear outer surface of the vertical plate, a motor is fixedly installed on the outer surface of the L-shaped mounting plate, two support shafts rotatably penetrate through the outer surface of the vertical plate, the output end of the motor is fixedly connected to the upper support shaft, second gears are fixedly sleeved on the outer surfaces of the two support shafts, the outer surfaces of the two second gears are meshed with each other, first transmission wheels are fixedly connected to the outer surfaces of the two support shafts far away from the second gears and the outer surfaces of the two rotating shafts, and first belts are movably wound between the upper two first transmission wheels and between the lower two first transmission wheels.

[0008] Furthermore, two connecting shafts are rotatably connected to the rear outer surface of the vertical plate, second transmission wheels are fixedly sleeved on the outer surfaces of the two connecting shafts and the rear outer surfaces of the two rotating shafts, and second belts are wound between the upper two second transmission wheels and between the lower two second transmission wheels.

[0009] Furthermore, first gears are fixedly sleeved on the outer surfaces of the two connecting shafts, and the outer surfaces of the two first gears are meshed with each other.

[0010] Furthermore, two side plates are fixedly connected to the rear outer surface of the vertical plate, a forward and reverse lead screw is rotatably connected between the opposite outer surfaces of the two side plates, a crank is fixedly connected to the top outer surface of the forward and reverse lead screw, two threaded blocks are threadedly connected to the outer surface of the forward and reverse lead screw, sliders are fixedly connected to the outer surfaces of the two threaded blocks, support wheels are rotatably connected to the outer surfaces of the two sliders, and the two support wheels are respectively movably connected to the outer surfaces of the two first belts.

[0011] Furthermore, a chute is formed on the outer surface of the vertical plate, and the two sliders are both slidably connected to the inside of the chute.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] 1. The edge pressing device for food packaging applies force through a support frame, and cooperates with a second transmission wheel, a second belt and a first gear to make two support frames rotate in opposite directions, so that two flattening rollers move towards or away from each other, thereby being able to adjust the distance between the two flattening rollers and improving the flattening effect on the packaging bag.

[0014] 2. The edge pressing device for food packaging drives a support shaft to rotate through a motor, and cooperates with a second gear, a first transmission wheel and a first belt to make two flattening rollers move in opposite directions, so as to flatten the bag mouth of the food packaging bag and convey the food packaging bag at the same time through the two flattening rollers.

[0015] 3. The edge pressing device for food packaging is provided with a positive and negative lead screw. By cooperating with a crank to drive the positive and negative lead screw to rotate, the distance between two threaded blocks is adjusted. The two threaded blocks drive the support wheels to move, and the positions of the two support wheels are adjusted, so as to adjust the supporting force on the first belt and avoid affecting the transmission ability of the first belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a front view structural schematic diagram of the present utility model;

[0017] Figure 2 is a rear view structural schematic diagram of the present utility model;

[0018] Figure 3 is the Figure 1 enlarged structural schematic diagram at A in the present utility model;

[0019] Figure 4 is the Figure 2 enlarged structural schematic diagram at B in the present utility model.

[0020] In the figure: 1. vertical plate; 2. rotating shaft; 3. support frame; 4. flattening roller; 5. limit disc; 6. limit hole; 7. fixing plate; 8. bolt; 9. L-shaped mounting plate; 10. support shaft; 11. motor; 12. first transmission wheel; 13. first belt; 14. first gear; 15. second transmission wheel; 16. second belt; 17. positive and negative lead screw; 18. threaded block; 19. crank; 20. support wheel; 21. second gear. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Embodiment 1:

[0023] Please refer to Figures 1 - 4 , the present utility model provides a technical solution: a hemming device for food packaging, including a vertical plate 1. Two rotating shafts 2 are rotatably penetrated through the outer surface of the vertical plate 1. Support frames 3 are fixedly sleeved on the outer surfaces of the two rotating shafts 2. Rotating shafts are rotatably penetrated through the opposite outer surfaces on the front and rear sides of the two support frames 3. Flattening rollers 4 are fixedly sleeved on the outer surfaces of the two rotating shafts. A limiting disk 5 is fixedly sleeved on the outer surface of the upper rotating shaft 2. A fixing plate 7 is fixedly connected to the front outer surface of the vertical plate 1. A pin 8 is movably inserted into the outer surface of the fixing plate 7. A plurality of limiting holes 6 arranged in a circumferential array are formed on the outer surface of the limiting disk 5. Specifically, when it is necessary to adjust the distance between the two flattening rollers 4, take out the pin 8 so that the pin 8 disengages from the inside of the limiting hole 6, release the limit on the limiting disk 5, apply force to the upper support frame 3. After adjustment, insert the pin 8 into the corresponding limiting hole 6 to limit the limiting disk 5, thereby limiting the rotating shaft 2.

[0024] In this embodiment, an L-shaped mounting plate 9 is fixedly connected to the rear outer surface of the vertical plate 1. A motor 11 is fixedly installed on the outer surface of the L-shaped mounting plate 9. Two support shafts 10 are rotatably penetrated through the outer surface of the vertical plate 1. The output end of the motor 11 is fixedly connected to the upper support shaft 10. Second gears 21 are fixedly sleeved on the outer surfaces of the two support shafts 10. The outer surfaces of the two second gears 21 are movably meshed with each other. First transmission wheels 12 are fixedly connected to the outer surfaces of the two support shafts 10 far from the second gears 21 and the outer surfaces of the two rotating shafts. First belts 13 are movably wound between the upper two first transmission wheels 12 and between the lower two first transmission wheels 12. Specifically, the motor 11 drives the support shaft 10 to rotate, drives the second gear 21 to rotate, the second gear 21 drives the other second gear 21 to rotate, so that the two support shafts 10 rotate in opposite directions. The two support shafts 10 rotate to drive the two first transmission wheels 12 to rotate. Under the action of the first belt 13, the other two first transmission wheels 12 are driven to rotate, so that the two flattening rollers 4 rotate in opposite directions, flatten the bag mouth of the food packaging bag, and convey the food packaging bag.

[0025] In this embodiment, two connecting shafts are rotatably connected to the outer surface at the rear side of the vertical plate 1. Second transmission wheels 15 are fixedly sleeved on the outer surfaces of the two connecting shafts and the outer surfaces at the rear sides of the two rotating shafts 2. A second belt 16 is wound between the two upper second transmission wheels 15 and between the two lower second transmission wheels 15. Specifically, a force is applied to the upper support frame 3, causing the upper rotating shaft 2 to rotate. When the upper rotating shaft 2 rotates, it drives the second transmission wheel 15 thereon to rotate. Under the action of the second belt 16, the second transmission wheel 15 on the upper connecting shaft is driven to rotate. At the same time, under the action of the other group of second transmission wheels 15 and the second belt 16, the lower rotating shaft 2 rotates.

[0026] In this embodiment, first gears 14 are fixedly sleeved on the outer surfaces of the two connecting shafts. The outer surfaces of the two first gears 14 are meshed with each other movably. Specifically, when the connecting shaft rotates, it drives the first gear 14 to rotate. The two first gears 14 are meshed with each other, so that the two connecting shafts rotate in opposite directions, and thus the two rotating shafts 2 rotate in opposite directions. The two rotating shafts 2 drive the two support frames 3, and then drive the two flattening rollers 4 to move, so that the two flattening rollers 4 move in a direction approaching or moving away from each other, and the distance between the two flattening rollers 4 changes.

[0027] In this embodiment, two side plates are fixedly connected to the outer surface at the rear side of the vertical plate 1. A left - right screw rod 17 is rotatably connected between the opposite outer surfaces of the two side plates. A crank 19 is fixedly connected to the outer surface at the top of the left - right screw rod 17. Two threaded blocks 18 are threadedly connected to the outer surface of the left - right screw rod 17. Sliders are fixedly connected to the outer surfaces of the two threaded blocks 18. Support wheels 20 are rotatably connected to the outer surfaces of the two sliders. The two support wheels 20 are respectively movably connected to the outer surface of the first belt 13. Specifically, when the crank 19 is rotated, the crank 19 drives the left - right screw rod 17 to rotate. When the left - right screw rod 17 rotates, it drives the two threaded blocks 18 to move. The two threaded blocks 18 move to adjust the distance between the two support wheels 20, thereby adjusting the supporting force on the first belt 13 and avoiding affecting the driving ability of the first belt 13.

[0028] In this embodiment, a chute is formed on the outer surface of the vertical plate 1. The two sliders are both slidably connected to the inside of the chute. Specifically, the chute provides a channel for the movement of the sliders. When the left - right screw rod 17 rotates, it drives the threaded block 18 to move, causing the slider to slide inside the chute.

[0029] Working principle: When the utility model is in use, the vertical plate 1 is installed at one end of the conveying device for food packaging bags. When it is necessary to adjust the distance between the two flattening rollers 4, the pin 8 is taken out so that the pin 8 disengages from the inside of the limit hole 6, the limit on the limit disc 5 is released, and a force is applied to the upper support frame 3, causing the upper rotating shaft 2 to rotate. When the upper rotating shaft 2 rotates, it drives the second transmission wheel 15 thereon to rotate. Under the action of the second belt 16, it drives the second transmission wheel 15 on the upper connecting shaft to rotate, so that the first gear 14 rotates. The rotation of the upper first gear 14 drives the lower first gear 14 to rotate. The two first gears 14 rotate in opposite directions, thus driving the second transmission wheel 15 on the lower connecting shaft to rotate. Under the action of the lower second belt 16, it drives the transmission wheel on the lower rotating shaft 2 to rotate, so that the lower rotating shaft 2 and the upper rotating shaft 2 rotate in opposite directions. Then, the two support frames 3 drive the two flattening rollers 4 to move respectively, so that the two flattening rollers 4 move in the direction of approaching or moving away from each other, changing the distance between the two flattening rollers 4. Then, the food packaging bag is conveyed and transported between the two flattening rollers 4. The motor 11 drives the support shaft 10 to rotate and drives the second gear 21 to rotate. The second gear 21 drives another second gear 21 to rotate, so that the two support shafts 10 rotate in opposite directions. The rotation of the two support shafts 10 drives the two first transmission wheels 12 to rotate. Under the action of the first belt 13, it drives the other two first transmission wheels 12 to rotate, so that the two flattening rollers 4 rotate in opposite directions. The two flattening rollers 4 flatten the mouth of the food packaging bag and convey the food packaging bag.

[0030] When adjusting the distance between the two flattening rollers 4, the crank 19 is rotated. The crank 19 drives the positive and negative lead screw 17 to rotate. When the positive and negative lead screw 17 rotates, it drives the two threaded blocks 18 to move. The movement of the two threaded blocks 18 adjusts the distance between the two support wheels 20, thereby adjusting the supporting force of the first belt 13 and avoiding affecting the transmission ability of the first belt 13.

[0031] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A pressing device for food packaging, comprising a vertical plate (1), characterized in that: The outer surface of the vertical plate (1) is rotatably penetrated by two rotating shafts (2), the outer surfaces of the two rotating shafts (2) are both fixedly sleeved with support frames (3), the outer surfaces of the two supporting frames (3) opposite to each other on the front and rear sides are both rotatably penetrated by rotating shafts, the outer surfaces of the two rotating shafts are both fixedly sleeved with flattening rollers (4), the outer surface of the upper rotating shaft (2) is fixedly sleeved with a limiting plate (5), the front outer surface of the vertical plate (1) is fixedly connected with a fixing plate (7), the outer surface of the fixing plate (7) is movably inserted with a latch (8), and the outer surface of the limiting plate (5) is provided with a plurality of limiting holes (6) arranged in a circular array; The rear outer surface of the vertical plate (1) is rotatably connected to two connecting shafts, the outer surfaces of the two connecting shafts and the rear outer surfaces of the two rotating shafts (2) are both fixedly sleeved with second transmission wheels (15), and a second belt (16) is wound between the two upper second transmission wheels (15) and between the two lower second transmission wheels (15); The outer surfaces of the two connecting shafts are both fixedly sleeved with a first gear (14), and the outer surfaces of the two first gears (14) are movably meshed with each other.

2. The edge pressing device for food packaging according to claim 1, characterized in that: The rear outer surface of the vertical plate (1) is fixedly connected to an L-shaped mounting plate (9), and the outer surface of the L-shaped mounting plate (9) is fixedly mounted with a motor (11). The outer surface of the vertical plate (1) is rotatably penetrated by two support shafts (10), and the output end of the motor (11) is fixedly connected to the upper support shaft (10). The outer surfaces of the two support shafts (10) are fixedly sleeved with a second gear (21), and the outer surfaces of the two second gears (21) are movably engaged with each other. One end of the two support shafts (10) away from the second gear (21) is fixedly connected to the outer surfaces of the two rotating shafts with a first transmission wheel (12), and a first belt (13) is movably wound between the upper two first transmission wheels (12) and between the lower two first transmission wheels (12).

3. The edge pressing device for food packaging according to claim 2, characterized in that: The rear outer surface of the vertical plate (1) is fixedly connected to two side plates, and a positive and negative screw rod (17) is rotatably connected between the opposite outer surfaces of the two side plates. The top outer surface of the positive and negative screw rod (17) is fixedly connected to a crank (19). The outer surface of the positive and negative screw rod (17) is threadedly connected to two threaded blocks (18). The outer surfaces of the two threaded blocks (18) are fixedly connected to sliders. The outer surfaces of the two sliders are rotatably connected to support wheels (20). The two support wheels (20) are movably connected to the outer surfaces of the two first belts (13) respectively.

4. The edge pressing device for food packaging according to claim 3, characterized in that: A sliding groove is provided on the outer surface of the vertical plate (1), and the two sliding blocks are both slidably connected to the inside of the sliding groove.

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