Vacuumizing mechanism of bag feeding type packaging machine

Abstract

The utility model discloses a vacuumizing mechanism of a bag feeding type packaging machine, which is characterized in that the vacuumizing mechanism comprises a left vacuum seat and a right vacuum seat, a middle vacuum seat is arranged between the left vacuum seat and the right vacuum seat, the middle vacuum seat is connected with a first moving driving assembly, and a left vacuumizing cavity can be defined by the middle vacuum seat and the left vacuum seat; the middle vacuum seat can also define a right vacuumizing cavity with the right vacuum seat, clamping assemblies and heat sealing assemblies are arranged in the left vacuum seat and the right vacuum seat, a left air exhaust connector is arranged on the left vacuum seat, and a right air exhaust connector is arranged on the right vacuum seat. The bag feeding mechanism is simple in structure, reasonable in design and capable of being matched with a bag feeding assembly to achieve continuous rapid vacuumizing and heat sealing operation, the overall structure of the mechanism is effectively simplified, the occupied space needed by the mechanism is reduced, and overall arrangement of equipment is facilitated.

Description

Technical Field

[0001] This utility model relates to packaging machines, specifically to a vacuuming mechanism for a bag packaging machine. Background Technology

[0002] The vacuuming mechanism is an important component of a pre-packaging bag machine. It is mainly used to vacuum-pack bags already filled with materials. Chinese patent document (Publication No.: CN 222698885 U; Publication Date: April 1, 2025) discloses a multi-station high-speed pre-packaging bag vacuum packaging machine, including a machine base. The machine base is characterized by having a filling and feeding system and a vacuuming system. The filling and feeding system includes a first turntable, several clamping components arranged around the first turntable, and a bag-picking mechanism, a bag-loading mechanism, a bag-opening and supporting mechanism, a feeding station, and a transfer mechanism arranged sequentially around the outer periphery of the first turntable. The vacuuming system includes a second turntable, several vacuum chambers arranged around the second turntable, and a vacuuming mechanism, a heat-sealing mechanism, and a discharge station arranged sequentially around the outer periphery of the second turntable. The transfer mechanism connects the first and second turntables, and the transfer mechanism is in cooperation with the vacuum chambers before the vacuuming mechanism.

[0003] The drawback of the above technical solution is that in order to vacuum the packaging bags containing materials that are continuously delivered by the transfer component, multiple sets of vacuum components are arranged around the turntable to achieve vacuuming during the rotation after receiving the material. The number of vacuum components required is very large, which makes the structure very complex, and the production assembly and subsequent maintenance operations are very troublesome. Moreover, the overall size is very large, and the required floor space is large, which is not convenient for deployment in the workshop. Utility Model Content

[0004] In view of the deficiencies in the prior art, the technical problem to be solved by this utility model is to provide a vacuuming mechanism for a bag packaging machine to solve the above-mentioned problems.

[0005] Therefore, this utility model is implemented using the following solution:

[0006] A vacuuming mechanism for a bag packaging machine is characterized by comprising a left vacuum seat and a right vacuum seat, with an intermediate vacuum seat disposed between the left and right vacuum seats. The intermediate vacuum seat is connected to a first moving drive assembly. The intermediate vacuum seat can form a left vacuum chamber together with the left vacuum seat, and can also form a right vacuum chamber together with the right vacuum seat. Both the left and right vacuum seats are provided with clamping assemblies and heat sealing assemblies. The left vacuum seat is provided with a left air extraction connector, and the right vacuum seat is provided with a right air extraction connector.

[0007] The first moving drive assembly includes a first cylinder, the piston rod of which is connected to an intermediate vacuum seat.

[0008] The intermediate vacuum seat is provided with a slide block, which cooperates with a fixed slide rail.

[0009] The heat sealing assembly includes a front heat sealing plate, which is mounted on a movable frame. The movable frame is connected to a second moving drive assembly. Both sides of the intermediate vacuum seat are provided with pressure plates that cooperate with the front heat sealing plate.

[0010] The second moving drive component is a second cylinder, and the piston rod of the second cylinder is connected to the moving frame.

[0011] The vacuuming mechanism of the bag packaging machine described above, by setting up left and right vacuum seats and a middle vacuum seat, can cooperate with the left and right vacuum seats to form a vacuuming chamber by controlling the movement of the middle vacuum seat. In this way, one of the left and right vacuum seats can cooperate with the middle vacuum seat to create a vacuum, while the other is used to receive the subsequently delivered packaging bags. This cycle can achieve continuous vacuuming operation, which can greatly simplify the structure of the vacuuming mechanism, facilitate its assembly and maintenance, and require less space, making it easier to install in the equipment. Attached Figure Description

[0012] The present invention includes the following figures:

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a structural diagram of the left vacuum seat of this utility model. Detailed Implementation

[0015] As shown in the figure, the vacuuming mechanism of the bag packaging machine disclosed in this utility model includes a left vacuum seat 3 and a right vacuum seat 1, with an intermediate vacuum seat 2 disposed between the left and right vacuum seats. The intermediate vacuum seat 2 is connected to a first moving drive assembly. Specifically, the first moving drive assembly includes a first cylinder 8, and the piston rod of the first cylinder 8 is connected to the intermediate vacuum seat 2. Of course, in addition to using a cylinder, common linear drive structures such as linear motors, synchronous belts, chains, rack and pinion structures, and cam structures can also be used to drive the intermediate vacuum seat 2. A slide 10 is provided on the intermediate vacuum seat 2, and the slide 10 cooperates with a fixed slide rail to guide the movement of the intermediate vacuum seat 2, improving its stability and smoothness of movement. The intermediate vacuum seat 2 and the left vacuum seat 3 can enclose a left vacuum chamber, and the intermediate vacuum seat 2 and the right vacuum seat 1 can also enclose a right vacuum chamber. Both the left vacuum seat 3 and the right vacuum seat 1 are equipped with clamping components 7 and heat-sealing components. The left vacuum seat 3 is equipped with a left air extraction connector 5, and the right vacuum seat 1 is equipped with a right air extraction connector 9. The clamping component 7 achieves clamping by controlling the rotation of the rotating shaft, which drives the gripper to move. This is a relatively common clamping method, and its specific structure and operation will not be described in detail here.

[0016] Furthermore, the heat-sealing assembly includes a front heat-sealing plate 6, which is mounted on a movable frame 11. The movable frame 11 is connected to a second moving drive assembly. Pressure plates that cooperate with the front heat-sealing plate 6 are provided on both sides of the intermediate vacuum seat 2. The second moving drive assembly is a second cylinder 4, whose piston rod is connected to the movable frame 11. Of course, in addition to cylinders, other commonly available linear drive structures such as linear motors, synchronous belts, chains, rack and pinion structures, and cam structures can also be used to move the movable frame 11.

[0017] The working principle of this utility model is as follows: A packaged bag already containing materials is conveyed by a transfer mechanism to the left vacuum seat 3 and positioned and clamped by the clamping component 7 within the left vacuum seat 3. Then, the intermediate vacuum seat 2 is controlled to move towards the left vacuum seat 3, so that the intermediate vacuum seat 2 and the left vacuum seat 3 enclose a left vacuum chamber. At this time, the negative pressure device performs vacuuming operations on the left vacuum chamber through the left air extraction connector 5, thereby achieving vacuuming of the packaged bag within the left vacuum chamber. After vacuuming is completed, the heat-sealing component heat-seales the packaged bag. While the intermediate vacuum seat 2 and the left vacuum seat 3 are working together to perform vacuuming, the transfer mechanism will convey subsequent packaged bags to the right vacuum seat 1, where they are clamped by the right vacuum seat 1. The clamping components inside position and clamp the packaging bag, then release the clamping components to complete the vacuuming and heat sealing of the packaging bag, and the middle vacuum seat 2 moves towards the right vacuum seat 1, allowing the product packaging bag to fall and collect naturally. Then, the middle vacuum seat 2 and the right vacuum seat 1 cooperate to form a right vacuum cavity. At this time, the negative pressure equipment performs vacuuming operation on the right vacuum cavity through the right air extraction connector 9, thereby realizing the vacuuming operation of the packaging bag in the right vacuum cavity. After the vacuuming is completed, the heat sealing component operates to heat seal the packaging bag. When the middle vacuum seat 2 and the right vacuum seat 1 cooperate to perform vacuuming, the transfer mechanism will send the subsequent packaging bag to the left vacuum seat 3. This cycle is repeated to achieve continuous vacuuming and heat sealing operation.

[0018] This invention features a structure with left and right vacuum seats and a middle vacuum seat. By controlling the movement of the middle vacuum seat, it can cooperate with the left and right vacuum seats to form a vacuum chamber. In this way, one of the left and right vacuum seats can cooperate with the middle vacuum seat to create a vacuum, while the other is used to receive the subsequently delivered packaging bags. This cycle enables continuous vacuuming operations. It greatly simplifies the structure of the vacuuming mechanism, making it easier to assemble and maintain. Moreover, it requires less space and can be easily installed in equipment.

Claims

1. A vacuuming mechanism for a bag packaging machine, characterized in that: It includes a left vacuum seat (3) and a right vacuum seat (1), and an intermediate vacuum seat (2) is provided between the left and right vacuum seats. The intermediate vacuum seat (2) is connected to the first moving drive assembly. The intermediate vacuum seat (2) can form a left vacuum chamber with the left vacuum seat (3) and can also form a right vacuum chamber with the right vacuum seat (1). Both the left vacuum seat (3) and the right vacuum seat (1) are provided with a clamping assembly (7) and a heat sealing assembly.

2. The vacuuming mechanism of the bag packaging machine according to claim 1, characterized in that: The first moving drive assembly includes a first cylinder (8), the piston rod of which is connected to an intermediate vacuum seat (2).

3. The vacuuming mechanism of the bag packaging machine according to claim 1, characterized in that: The intermediate vacuum seat (2) is provided with a slide (10), which cooperates with a fixed slide rail.

4. The vacuuming mechanism of the bag packaging machine according to claim 1, characterized in that: The heat sealing assembly includes a front heat sealing plate (6), which is mounted on a movable frame (11). The movable frame (11) is connected to a second moving drive assembly. Both sides of the intermediate vacuum seat (2) are provided with pressure plates that cooperate with the front heat sealing plate (6).

5. The vacuuming mechanism of the bag packaging machine according to claim 4, characterized in that: The second moving drive component is a second cylinder (4), and the piston rod of the second cylinder (4) is connected to the moving frame (11).

6. The vacuuming mechanism of the bag packaging machine according to claim 1, characterized in that: The left vacuum seat (3) is provided with a left air extraction connector (5), and the right vacuum seat (1) is provided with a right air extraction connector (9).

Images