Ton bag pre-closing device

Abstract

The utility model is applicable to the technical field of ton bag packaging, and provides a ton bag pre-closing device which comprises a mounting plate, a lifting seat, a sealing device, a sealing device, a sealing device, a sealing device and a sealing device, the mounting plate is arranged on a packaging machine, and a lifting seat is slidably arranged on one side of the mounting plate; the rotating disc is rotationally arranged on the lifting seat, a plurality of positioning rods are arranged on the bottom surface of the rotating disc, the positioning rods are rotationally connected with clamping jaws, each clamping jaw comprises an upper end part and a lower end part, the upper end parts are rotationally connected with the positioning rods, the upper end parts are rotationally connected with connecting rods, and the connecting rods are rotationally connected with a liftable central disc. Therefore, the ton bag pre-closing device not only can pre-close the ton bag, but also can exhaust the ton bag, so that the packaging efficiency of the ton bag is improved, and the labor intensity of a user is reduced due to the fact that all the processes are carried out automatically.

Description

Technical Field

[0001] This utility model relates to the field of ton bag packaging technology, and in particular to a ton bag pre-sealing device. Background Technology

[0002] Ton bags are a type of flexible transport packaging container with advantages such as moisture-proof, dust-proof, sturdy and safe. They are widely used in container loading and unloading and material handling. After the ton bags are filled with materials, they need to be sealed. In the current technology, most ton bags are sealed by manual binding. However, because the ton bags are heavy after being filled with materials, the labor intensity of the workers is high.

[0003] To address the aforementioned issues, those skilled in the art have made improvements to existing technologies. For example, an automatic ton bag sealing mechanism disclosed in CN220701558U includes a sealing mechanism frame, a sealing core, a front half-bridge, a rear half-bridge, a front guide plate, a rear half-bridge guide plate, a gathering rod, a front half-bridge cylinder, a front guide groove cylinder, a rear half-bridge guide plate cylinder, a gathering rod cylinder, an electric hot air assembly, an upper protective cover for the core, and a lower protective cover for the core. This mechanism can ensure a good sealing heat-sealing effect. However, the aforementioned device lacks a structure for pre-sealing the ton bag, making it difficult to seal the ton bag and still inconvenient to use.

[0004] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0005] To address the aforementioned shortcomings, the purpose of this utility model is to provide a ton bag pre-sealing device, which can pre-seale the ton bag and also vent the ton bag, thereby improving the ton bag packaging efficiency. Moreover, the above processes are all performed automatically, reducing the labor intensity of the user.

[0006] To achieve the above objectives, this utility model provides a pre-closing device for ton bags, comprising: a mounting plate disposed on a packaging machine, wherein a liftable lifting seat is slidably disposed on one side of the mounting plate; a turntable rotatably disposed on the lifting seat, wherein a plurality of positioning rods are provided on the bottom surface of the turntable, wherein each positioning rod is rotatably connected to a gripper, each gripper having an upper end and a lower end, wherein each upper end is rotatably connected to a positioning rod, and each upper end is rotatably connected to a connecting rod, wherein each connecting rod is rotatably connected to a liftable central disc.

[0007] According to the ton bag pre-closing device of this utility model, the mounting plate is provided with a lifting drive component, the output shaft of the lifting drive component is connected to the lifting seat, the turntable is connected to the output shaft of the rotation drive component, the rotation drive component is disposed on the lifting seat, the central plate is connected to the output shaft of the clamping drive component, and the clamping drive component is disposed on the turntable.

[0008] According to the ton bag pre-closing device of this utility model, one end of the lifting seat is connected to a side plate, and the side plate is slidably connected to an mounting plate.

[0009] According to the ton bag pre-closing device of this utility model, a number of reinforcing rods are provided between the side plate and the lifting plate, and a Titan chain connecting the lifting seat is provided on the mounting plate.

[0010] According to the ton bag pre-closing device of this utility model, the mounting plate is rotatably provided with a drive shaft and two driven shafts, the mounting plate is slidably provided with a mating seat, each driven shaft is provided with a circulation groove that mates with the mating seat, the mating seat is rotatably provided with a sleeve shaft that is slidably sleeved outside the drive shaft, the sleeve shaft is rotatably provided with a rotating ring, the mating seat is provided with a bearing plate, the turntable is rotatably provided on the bearing plate, the turntable is provided with a top column, a belt is provided between the rotating ring and the top column, the drive shaft is provided with a drive gear, and each driven shaft is rotatably provided with a driven gear that meshes with the drive gear.

[0011] According to the ton bag pre-closing device of this utility model, the rotating ring is provided with a positive ratchet, the sleeve shaft is provided with a positive pawl, the driven gear is provided with a negative ratchet, and the driven shaft is provided with a negative pawl.

[0012] According to the ton bag pre-closing device of this utility model, the drive shaft is connected to the output shaft of the running drive component, and the running drive component is mounted on the mounting plate.

[0013] The purpose of this utility model is to provide a pre-closing device for ton bags, which has the following beneficial effects:

[0014] 1. By setting up several grippers, the ton bag can be pre-closed, ensuring the smooth progress of subsequent closing operations and improving the efficiency of ton bag packaging.

[0015] 2. By setting up a lifting seat and turntable, several grippers can rotate and descend while maintaining a tight grip on the bag opening, thereby venting the bag and ensuring good packaging results.

[0016] In summary, the beneficial effects of this utility model are: it can pre-close the ton bag and also vent the ton bag, thus improving the packaging efficiency of the ton bag. Moreover, the above processes are all carried out automatically, reducing the labor intensity of the user. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0018] Figure 2 yes Figure 1 Enlarged schematic diagram of part A of the structure;

[0019] Figure 3This is a schematic diagram of another embodiment of the present invention;

[0020] In the diagram: 1-Mounting plate, 11-Lifting drive component, 12-Titan chain, 2-Lifting seat, 21-Side plate, 211-Reinforcing rod, 3-Turntable, 31-Rotation drive component, 32-Top column, 4-Positioning rod, 41-Gripper, 42-Connecting rod, 43-Center plate, 44-Clamping drive component, 5-Drive shaft, 51-Drive gear, 6-Driven shaft, 52-Running drive component, 61-Driven gear, 62-Matching seat, 63-Bearing plate, 7-Sleeve shaft, 71-Rotating ring. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0022] See Figures 1-3 This utility model provides a pre-closing device for ton bags, comprising:

[0023] Mounting plate 1 is mounted on a packaging machine (packaging machines are a relatively mature existing technology, and their structure and operating principle are conventional technical means for those skilled in the art, so they will not be described in detail). A lifting seat 2 is provided on one side of the mounting plate 1. A side plate 21 is provided at the end of the lifting seat 2 near the mounting plate 1. The side plate 21 is slidably connected to the mounting plate 1. A lifting drive component 11 is provided on the mounting plate 1. The output shaft of the lifting drive component 11 is connected to the lifting seat 2. The lifting drive component 11 can drive the lifting seat 2 to perform reciprocating lifting motion.

[0024] A turntable 3 is rotatably mounted on a lifting base 2. The turntable 3 is connected to the output shaft of a rotary drive 31, which is also mounted on the lifting base 2 and drives the turntable 3 to rotate. A number of positioning rods 4 are evenly distributed around the axis of the turntable 3 on the bottom surface of the turntable 4. Each positioning rod 4 has a gripper 41 rotatably connected to its bottom end. Each gripper 41 has an upper end and a lower end, with the upper end being shorter than the lower end. The upper end is rotatably connected to the gripper 41, and there is a certain angle between the upper and lower ends. The end of the upper end furthest from the positioning rod 4 is rotatably connected to a connecting rod 42. The end of the connecting rod 42 furthest from the gripper 41 is rotatably connected to a central disc 43. The central disc 43 is connected to the output shaft of a clamping drive 44, which is located on the bottom surface of the turntable 3. The clamping drive 44 drives the central disc 43 to reciprocate and lift. Under the action of the connecting rod 42, the grippers 41 move synchronously, achieving the clamping and releasing of the ton bag.

[0025] See Figures 1-2Preferably, the top surface of the lifting seat 2 is provided with a number of reinforcing rods 211, and the other end of the reinforcing rods 211 is connected to the side plate 21, which can improve the connection strength between the lifting seat 2 and the side plate 21 and the stability of the lifting seat 2.

[0026] See Figures 1-2 Preferably, the mounting plate 1 is provided with a Titan chain 12, which is connected to the lifting seat 2, thereby further improving the stability of the lifting seat 2.

[0027] See Figures 1-3 In another embodiment of this utility model: a drive shaft 5 and two driven shafts 6 are rotatably mounted on the mounting plate 1. The drive shaft 5 is located between the two driven shafts 6, and the two driven shafts 6 are symmetrical about the axis of the drive shaft 5. A mating seat 62 is slidably mounted on the mounting plate 1. Both the drive shaft 5 and the driven shafts 6 pass through the mating seat 62. The surface of each driven shaft 6 is provided with a circulation groove. Each mating seat 62 is provided with a guide post that mates with the circulation groove. When the two driven shafts 6 rotate synchronously, they can drive the mating seat 62 to perform reciprocating lifting and lowering motion. A bearing plate 63 is provided on the mating seat 62. The turntable 3 is rotatably mounted on the bearing plate 63. A sleeve shaft 7 is rotatably connected to the mating seat 62. The sleeve shaft 7 is slidably mounted on the drive shaft 5 (the drive shaft 5 is provided with a guide bar, and the sleeve shaft 7 is provided with a guide groove that mates with the guide bar). The sleeve shaft 7 can both follow the mating seat 62 to perform reciprocating lifting and lowering motion and follow the drive shaft 5 to perform reciprocating rotation. A rotating ring 71 is rotatably mounted at the bottom of the sleeve shaft 7. A positive ratchet is mounted on the rotating ring 71. A unidirectional rotatable positive pawl is rotatably connected to the sleeve shaft 7. The sleeve shaft 7, rotating ring 71, and positive ratchet are concentric. A top post 32 is mounted on the top surface of the turntable 3. A belt is provided between the rotating ring 71 and the top post 32. The top end of the drive shaft 5 is connected to the output shaft of the running drive component 52. The running drive component 52 is mounted on the mounting plate 1. A drive gear 51 is mounted on the drive shaft 5. A driven gear 61 that meshes with the drive gear 51 is rotatably mounted on each driven shaft 6. A reverse ratchet is mounted on each driven gear 61. A unidirectional rotatable reverse pawl is rotatably connected to each driven shaft 6. The driven shaft 6, driven gear 61, and reverse ratchet are concentric.

[0028] See Figures 1-2 Preferably, the lifting drive component 11 and the clamping drive component 44 are both electric cylinders, and the rotating drive component 31 and the running drive component 52 are both electric motors, which can provide sufficient power.

[0029] In the implementation of this utility model: after the ton bag is transported to the appropriate position by the packing machine, the lifting drive component 11 is activated, driving the lifting seat 2 and several grippers 41 to descend to the appropriate position (generally at the mouth of the ton bag). Then, the clamping drive component 44 is activated, driving several grippers 41 to rotate synchronously and clamp the mouth of the ton bag. Then, the rotation drive component 31 is activated, driving the turntable 3 and several grippers 41 to rotate. At this time, the lifting drive component 11 is activated, so that the grippers 41, while maintaining the clamping of the mouth of the ton bag, rotate and move downwards, realizing the pre-closing and venting of the mouth of the ton bag.

[0030] In another embodiment of this invention, during operation, the user activates the drive unit 52, which drives the drive shaft 5 to reverse. At this time, the positive ratchet is not engaged with the positive pawl, and the negative ratchet is engaged with the negative pawl, meaning the rotating ring 71 does not rotate, while the driven shaft 6 rotates. The mating seat 62 drives the gripper 41 to descend to a suitable position, and then several grippers 41 clamp the bag opening. At this time, the drive unit 52 rotates forward, and the positive ratchet is engaged with the positive pawl, while the negative ratchet is not engaged with the negative pawl, meaning the rotating ring 71 rotates, while the driven shaft 6 does not rotate. Under the action of the belt, the rotating ring 71 drives the turntable 3 to rotate. The drive unit 52 intermittently changes its running direction, causing the descent of the mating seat 62 and the rotation of the turntable 3 to alternate until the tightening and venting of the bag opening are completed.

[0031] This utility model provides a pre-closing device for ton bags, which has the following advantages:

[0032] 1. By setting up several grippers, the ton bag can be pre-closed, ensuring the smooth progress of subsequent closing operations and improving the efficiency of ton bag packaging.

[0033] 2. By setting up a lifting seat and turntable, several grippers can rotate and descend while maintaining a tight grip on the bag opening, thereby venting the bag and ensuring good packaging results.

[0034] In summary, the beneficial effects of this utility model are: it can pre-close the ton bag and also vent the ton bag, thus improving the packaging efficiency of the ton bag. Moreover, the above processes are all carried out automatically, reducing the labor intensity of the user.

[0035] Of course, there may be many other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A pre-closing device for ton bags, characterized in that, include: The mounting plate is mounted on the packaging machine, and a liftable lifting seat is slidably provided on one side of the mounting plate; A turntable is rotatably mounted on a lifting seat. The bottom surface of the turntable is provided with several positioning rods. Each positioning rod is rotatably connected to a gripper. Each gripper includes an upper end and a lower end. Each upper end is rotatably connected to a positioning rod. Each upper end is rotatably connected to a connecting rod. Each connecting rod is rotatably connected to a liftable center disc. The mounting plate is rotatably provided with a drive shaft and two driven shafts. A mating seat is slidably provided on the mounting plate. Each driven shaft is provided with a circulation groove that mates with the mating seat. A sleeve shaft is rotatably provided on the mating seat and slidably sleeved outside the drive shaft. A rotating ring is rotatably provided on the sleeve shaft. A bearing plate is provided on the mating seat. A turntable is rotatably provided on the bearing plate. A top column is provided on the turntable. A belt is provided between the rotating ring and the top column. A drive gear is provided on the drive shaft. Each driven shaft is rotatably provided with a driven gear that meshes with the drive gear.

2. The ton bag pre-closing device according to claim 1, characterized in that, The mounting plate is provided with a lifting drive component, the output shaft of which is connected to the lifting base. The turntable is connected to the output shaft of the rotation drive component, which is located on the lifting base. The central plate is connected to the output shaft of the clamping drive component, which is located on the turntable.

3. The ton bag pre-closing device according to claim 1, characterized in that, One end of the lifting seat is connected to a side plate, and the side plate is slidably connected to a mounting plate.

4. The ton bag pre-closing device according to claim 3, characterized in that, Several reinforcing rods are provided between the side plate and the lifting plate, and the mounting plate is provided with Titan Chains connecting the lifting seat.

5. The ton bag pre-closing device according to claim 1, characterized in that, The rotating ring is provided with a positive ratchet, the sleeve shaft is provided with a positive pawl, the driven gear is provided with a negative ratchet, and the driven shaft is provided with a negative pawl.

6. The ton bag pre-closing device according to claim 1, characterized in that, The drive shaft is connected to the output shaft of the running drive component, which is mounted on the mounting plate.

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