Telescopic in-bag degassing mechanism

Abstract

The utility model relates to the technical field of degassing, in particular to a telescopic in-bag degassing mechanism which comprises a fixing frame, a mounting seat is arranged on the fixing frame, a degassing cylinder is arranged on the mounting seat, a locking block is arranged at the output end of the degassing cylinder, and an air exhaust flat nozzle is arranged on one side of the degassing cylinder. The output end of the three-phase motor is provided with a coupler; one end of the coupler is provided with a driving gear; one side of the driving gear is provided with a first driven gear; the other side of the first driven gear is provided with a second driven gear; the first driven gear and the second driven gear are connected with a left clamping arm and a right clamping arm through universal joints. The first air cylinder stretches out and draws back to drive the suction cup to be close to a packaging bag, negative pressure is generated, a bag opening is sucked, the first air cylinder is retracted, the suction cup opens the bag opening, at the moment, the degassing air cylinder drives the air exhaust flat nozzle to descend and stay, the air exhaust flat nozzle generates negative pressure through a pipeline, air in the packaging bag is pumped out, and therefore the degassing efficiency of the packaging bag is greatly improved.

Description

Technical Field

[0001] The utility model relates to an in-bag degassing mechanism, in particular to a telescopic in-bag degassing mechanism, belonging to the technical field of degassing. Background Art

[0002] In the packaging industry, it is necessary to degas the materials in the bag. Through degassing treatment, the gaps between the packaging bags can be reduced during the palletizing process, making the palletizing more stable, and it can also prevent the packaging bags from bursting due to the air in the bags during transportation.

[0003] In the existing technology, after the packaging of the product is completed, a certain amount of air often remains in the packaging bag. The traditional method is to squeeze the packaging bag manually or mechanically to discharge the gas. However, the manual squeezing and exhausting method has relatively low efficiency. Especially when a large number of packaging bags need to be processed, the labor intensity is high and it takes a long time. And mechanical squeezing may cause a certain degree of squeezing damage to the items in the packaging bag, especially for fragile or irregularly shaped items, and the effect of squeezing and exhausting may not be thorough enough to completely discharge all the air in the packaging bag, so secondary or multiple treatments are required, thus greatly reducing the degassing efficiency of the packaging bag.

[0004] Therefore, it is urgent to improve the telescopic in-bag degassing mechanism to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a telescopic in-bag degassing mechanism. The first cylinder expands and contracts to drive the suction cup to approach the packaging bag, generating negative pressure to suck and close the bag mouth. When the first cylinder retracts, the suction cup opens the bag mouth. At this time, the degassing cylinder drives the air extraction flat nozzle to descend and stay. The air extraction flat nozzle generates negative pressure through the pipeline to extract the air in the packaging bag, thus greatly improving the degassing efficiency of the packaging bag.

[0006] In order to achieve the above purpose, the main technical solutions adopted by the utility model include:

[0007] A telescopic in-bag degassing mechanism includes a fixed frame. An installation seat is fixedly installed on the fixed frame. A degassing cylinder is fixedly installed on the installation seat. The output end of the degassing cylinder penetrates through the installation seat and is fixedly connected with a locking block. And a air extraction flat nozzle is arranged on one side of the degassing cylinder. The air extraction flat nozzle penetrates through the installation seat and is connected with the locking block;

[0008] One side of the fixing frame is fixedly installed with a gearbox. One side of the gearbox is provided with a three-phase motor. The output end of the three-phase motor is connected with a coupling. One end of the coupling far from the three-phase motor is connected with a driving gear. One side of the driving gear is provided with a first driven gear. The first driven gear meshes with the driving gear. The other side of the first driven gear is meshed and connected with a second driven gear. The first driven gear and the second driven gear are respectively connected with a left clamping arm and a right clamping arm through universal joints. The other ends of the left clamping arm and the right clamping arm are both connected with clamping plates through universal joints. A plurality of uniformly distributed rollers are rotatably connected to the clamping plates through rotating rods;

[0009] Both sides of the fixing frame are fixedly connected with connecting plates. A first cylinder is fixedly installed on the connecting plates. The output end of the first cylinder is fixedly connected with a connecting block. One end of the connecting block far from the first cylinder is fixedly connected with a suction cup.

[0010] Preferably, the driving gear, the first driven gear and the second driven gear are all arranged inside the gearbox.

[0011] Preferably, a connecting piece is arranged below the fixing frame. One end of the connecting piece is connected with the clamping plate, and teeth are arranged at one end of the connecting piece far from the clamping plate.

[0012] Preferably, a second cylinder is hinged on one of the connecting pieces. The output end of the second cylinder is hinged with the other connecting piece.

[0013] Preferably, a plurality of uniformly distributed connecting seats are fixedly installed below the fixing frame. The plurality of connecting seats and the plurality of connecting pieces are connected through guide rods. The guide rods movably penetrate through the connecting pieces and are rotatably connected with the connecting pieces.

[0014] Preferably, a screw rod is arranged on the plurality of connecting pieces. The screw rod is fixedly connected with the connecting pieces through nuts.

[0015] The utility model has at least the following beneficial effects:

[0016] 1. When the first cylinder of the utility model expands and contracts, the suction cup is driven to approach the packaging bag, negative pressure is generated, and the bag mouth is sucked and closed. When the first cylinder retracts, the suction cup opens the bag mouth. At this time, the degassing cylinder drives the air extraction flat nozzle to descend and stay. The air extraction flat nozzle generates negative pressure through the pipeline, and the air in the packaging bag is extracted, thereby greatly improving the degassing efficiency of the packaging bag.

[0017] 2. The utility model drives the driving gear, the first driven gear to rotate and the second driven gear to cooperate with each other through a three-phase motor driving coupling, and then drives the left clamping arm and the right clamping arm respectively through a universal joint, and drives the two clamping plates to clamp the packaging bag, so as to prevent the packaging bag from tipping over during the conveying process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0019] Figure 1 is a schematic diagram of the overall structure provided by the present utility model;

[0020] Figure 2 is a schematic diagram of a partial structure provided by the present utility model;

[0021] Figure 3 is a side view of the overall structure provided by the present utility model;

[0022] Figure 4 is a front view of the overall structure provided by the present utility model.

[0023] In the figure, 1 is a fixed frame; 2 is a mounting seat; 3 is a degassing cylinder; 4 is a locking block; 5 is a suction flat nozzle; 6 is a gear box; 7 is a three-phase motor; 8 is a coupling; 9 is a driving gear; 10 is a first driven gear; 11 is a second driven gear; 12 is a universal joint; 13 is a left clamping arm; 14 is a right clamping arm; 15 is a clamping plate; 16 is a roller; 17 is a connecting plate; 18 is a first cylinder; 19 is a connecting block; 20 is a suction cup; 21 is a connecting member; 22 is a tooth; 23 is a second cylinder; 24 is a connecting seat; 25 is a guide rod; 26 is a screw; 27 is a nut. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following will describe in detail the embodiments of the present application in conjunction with the drawings and embodiments, so as to fully understand how the present application uses technical means to solve technical problems and achieve the realization process of technical effects and implement them accordingly.

[0025] As Figures 1-4 shown, the telescopic in-bag degassing mechanism provided in this embodiment includes a fixed frame 1, a mounting seat 2 is fixedly installed on the fixed frame 1, a degassing cylinder 3 is fixedly installed on the mounting seat 2, the output end of the degassing cylinder 3 penetrates through the mounting seat 2 and is fixedly connected to a locking block 4, and a suction flat nozzle 5 is arranged on one side of the degassing cylinder 3, and the suction flat nozzle 5 penetrates through the mounting seat 2 and is connected to the locking block 4;

[0026] One side of the fixing frame 1 is fixedly installed with a gearbox 6. One side of the gearbox 6 is provided with a three-phase motor 7. The output end of the three-phase motor 7 is connected with a coupling 8. The end of the coupling 8 far away from the three-phase motor 7 is connected with a driving gear 9. One side of the driving gear 9 is respectively provided with a first driven gear 10. The first driven gear 10 meshes with the driving gear 9. The other side of the first driven gear 10 is meshed and connected with a second driven gear 11. The first driven gear 10 and the second driven gear 11 are respectively connected with a left clamping arm 13 and a right clamping arm 14 through universal joints 12. The other ends of the left clamping arm 13 and the right clamping arm 14 are respectively connected with a clamping plate 15 through universal joints 12. A plurality of evenly distributed rollers 16 are rotatably connected to the clamping plate 15 through a rotating rod;

[0027] Both sides of the fixing frame 1 are fixedly connected with connecting plates 17. A first cylinder 18 is fixedly installed on the connecting plates 17. The output end of the first cylinder 18 is fixedly connected with a connecting block 19. The end of the connecting block 19 far away from the first cylinder 18 is fixedly connected with a suction cup 20. The packaged packaging bag is conveyed between the clamping plates 15 through a conveying device. The three-phase motor 7 is started to drive the coupling 8, driving the driving gear 9 to rotate. The driving gear 9 drives the first driven gear 10 to rotate. The first driven gear 10 drives the second driven gear 11 to rotate. Then, through the universal joints 12, the left clamping arm 13 and the right clamping arm 14 are respectively driven, driving the two clamping plates 15 to clamp the packaging bag, preventing the packaging bag from toppling during the conveying process. When the packaging bag is conveyed to the lower part of the air extraction flat nozzle 5 through the conveying device, the first cylinder 18 expands and contracts to drive the suction cup 20 to approach the packaging bag, generating negative pressure to suck and close the bag mouth. The first cylinder 18 retracts. At this time, the suction cup 20 opens the bag mouth. Then, the degassing cylinder 3 drives the air extraction flat nozzle 5 to descend and stay through the locking block 4. At this time, the air extraction flat nozzle 5 generates negative pressure through the pipeline, and then the air in the packaging bag can be extracted, thus greatly improving the degassing efficiency of the packaging bag.

[0028] Further, as Figures 1-4 shown, the driving gear 9, the first driven gear 10 and the second driven gear 11 are all arranged inside the gearbox 6. The gearbox 6 can prevent dust, impurities, moisture, etc. from the outside from entering the inside of the gearbox 6, reducing the wear and corrosion of the driving gear 9, the first driven gear 10 and the second driven gear 11, and thus extending the service life of the driving gear 9, the first driven gear 10 and the second driven gear 11.

[0029] Further, as Figures 1-4As shown in the figure, a connecting piece 21 is arranged below the fixing frame 1. One end of the connecting piece 21 is connected to the clamping plate 15, and a tooth 22 is provided at the end of the connecting piece 21 away from the clamping plate 15. A second cylinder 23 is hinged to one of the connecting pieces 21, and the output end of the second cylinder 23 is hinged to the other connecting piece 21. Through the telescopic movement of the second cylinder 23, the two connecting pieces 21 can be driven to move relative to each other, driving the clamping plate 15 to move. The tooth 22 is used to increase the frictional force or engagement force when the connecting pieces 21 cooperate, preventing the connecting pieces 21 from sliding or dislocating during the working process.

[0030] Further, as Figures 1-4 shown in the figure, a number of evenly distributed connecting seats 24 are fixedly installed below the fixing frame 1. The number of connecting seats 24 and the number of connecting pieces 21 are connected by a guide rod 25, and the guide rod 25 movably penetrates the connecting piece 21 and is rotatably connected to the connecting piece 21. Through the guide rod 25, the connecting piece 21 can be fixed on the connecting seat 24 to provide support for the connecting piece 21.

[0031] Further, as Figures 1-4 shown in the figure, a screw 26 is provided on a number of connecting pieces 21. The screw 26 is fixedly connected to the connecting piece 21 through a nut 27. Through the nut 27, a number of connecting pieces 21 can be fixed on the screw 26, and thus the synchronous movement of a number of connecting pieces 21 can be realized. And by adjusting the nut 27, the fine adjustment of the connecting piece 21 on the screw 26 can also be realized.

[0032] As Figures 1-4 shown in the figure, the principle of the telescopic in-bag degassing mechanism provided in this embodiment is as follows:

[0033] The packaged packaging bag is conveyed between the clamping plates 15 through a conveying device. The three-phase motor 7 is started to drive the coupling 8, driving the driving gear 9 to rotate. The driving gear 9 drives the first driven gear 10 to rotate. The first driven gear 10 drives the second driven gear 11 to rotate, and then drives the left clamping arm 13 and the right clamping arm 14 respectively through the universal joint 12, driving the two clamping plates 15 to clamp the packaging bag to prevent the packaging bag from toppling during the conveying process. When the packaging bag is conveyed to the lower part of the air extraction flat nozzle 5 through the conveying device, the first cylinder 18 expands and contracts to drive the suction cup 20 to approach the packaging bag, generating negative pressure to suck and close the bag mouth. The first cylinder 18 retracts. At this time, the suction cup 20 opens the bag mouth. Then the degassing cylinder 3 drives the air extraction flat nozzle 5 to descend and stay through the locking block 4. At this time, the air extraction flat nozzle 5 generates negative pressure through the pipeline, and thus the air in the packaging bag can be extracted, greatly improving the degassing efficiency of the packaging bag.

[0034] As used in the specification and claims, certain terms are used to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not use the difference in names as a way to distinguish components, but rather use the difference in the functions of components as the criterion for distinction. As used throughout the specification and claims, "comprising" is an open-ended term and should be interpreted as "comprising but not limited to". "Substantially" means within an acceptable error range. Those skilled in the art can solve technical problems within a certain error range and basically achieve the technical effects.

[0035] It should be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a commodity or system including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such commodity or system. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the commodity or system including the element.

[0036] The above description shows and describes several preferred embodiments of the present invention. However, as mentioned above, it should be understood that the present invention is not limited to the forms disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be changed within the scope of the inventive concept described herein through the above teachings or the technology or knowledge in the relevant field. And any changes and modifications made by those skilled in the art that do not depart from the spirit and scope of the present invention should fall within the protection scope of the appended claims of the present invention.

Claims

1. A telescopic in-bag degassing mechanism, comprising a fixing frame (1), characterized in that: A mounting seat (2) is fixedly mounted on the fixing frame (1), a degassing cylinder (3) is fixedly mounted on the mounting seat (2), an output end of the degassing cylinder (3) passes through the mounting seat (2) and is fixedly connected to a locking block (4), and a suction flat nozzle (5) is provided on one side of the degassing cylinder (3), the suction flat nozzle (5) passes through the mounting seat (2) and is connected to the locking block (4); A gear box (6) is fixedly mounted on one side of the fixed frame (1), a three-phase motor (7) is arranged on one side of the gear box (6), an output end of the three-phase motor (7) is connected to a coupling (8), an end of the coupling (8) away from the three-phase motor (7) is connected to a driving gear (9), a first driven gear (10) is arranged on one side of the driving gear (9), the first driven gear (10) is meshed with the driving gear (9), the other side of the first driven gear (10) is meshed with a second driven gear (11), the first driven gear (10) and the second driven gear (11) are respectively connected to a left clamping arm (13) and a right clamping arm (14) via a universal joint (12), the other ends of the left clamping arm (13) and the right clamping arm (14) are connected to a clamping plate (15) via a universal joint (12), and a plurality of evenly distributed rollers (16) are rotatably connected to the clamping plate (15) via a rotating rod; Both sides of the fixing frame (1) are fixedly connected with connecting plates (17), a No. 1 cylinder (18) is fixedly mounted on the connecting plates (17), an output end of the No. 1 cylinder (18) is fixedly connected with a connecting block (19), and an end of the connecting block (19) away from the No. 1 cylinder (18) is fixedly connected with a suction cup (20).

2. A telescopic in-bag degassing mechanism according to claim 1, characterized in that: The driving gear (9), the first driven gear (10) and the second driven gear (11) are all arranged inside the gear box (6).

3. A telescopic in-bag degassing mechanism according to claim 1, characterized in that: A connecting piece (21) is arranged below the fixing frame (1), one end of the connecting piece (21) is connected to the clamping plate (15), and teeth (22) are arranged at one end of the connecting piece (21) away from the clamping plate (15).

4. A telescopic in-bag degassing mechanism according to claim 3, characterized in that: A second cylinder (23) is hingedly connected to one of the connecting members (21), and an output end of the second cylinder (23) is hingedly connected to another connecting member (21).

5. A telescopic in-bag degassing mechanism according to claim 4, characterized in that: A plurality of evenly distributed connection seats (24) are fixedly mounted below the fixing frame (1); the plurality of connection seats (24) and the plurality of connection members (21) are connected via guide rods (25); and the guide rods (25) movably penetrate the connection members (21) and are rotationally connected to the connection members (21).

6. A telescopic in-bag degassing mechanism according to claim 5, characterized in that: A plurality of the connecting members (21) are provided with screw rods (26), and the screw rods (26) are fixedly connected to the connecting members (21) via nuts (27).

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