Transverse sealing structure

Abstract

A transverse sealing structure comprises a transverse sealing mechanism, buffering structures, a ball screw support, a ball screw, a coupler, a servo motor, a pressure regulating valve and a limit switch, the two sides of the transverse sealing mechanism are connected with the buffering structures respectively, the transverse sealing mechanism is connected with the ball screw, the ball screw is arranged on the ball screw support, and the ball screw is arranged on the ball screw support. The ball screw is connected with the servo motor through a coupler, the pressure regulating valve and the limit switch are fixed to the multi-column machine wall plate, and the pressure regulating valve is connected with the buffering structure through an air pipe. The buffering structure comprises a balance air cylinder, an air pipe connector, a floating connector and an air cylinder opening silencer. Compared with the prior art, spring stretching is changed into the air cylinder, it is guaranteed that the load of the ball screw at any transverse sealing point is a stable value, and then the durability of the ball screw and the stability of the service life are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment, specifically to a horizontal sealing structure. Background Technology

[0002] like Figure 4 As shown, in traditional horizontal sealing structures, the overall weight of the horizontal sealing mechanism is relatively heavy, placing a large load on the screw's vertical movement and significantly impacting its wear life. Therefore, a spring is used to assist in lifting the entire horizontal sealing mechanism to reduce the load on the screw. However, the spring has a drawback: its extension length is shortest at the highest point of the horizontal sealing mechanism, resulting in lower tension, while its extension length is maximum at the lowest point, resulting in maximum tension. This makes it impossible to guarantee a stable tension at any position of the horizontal sealing mechanism, thus still affecting screw wear. Furthermore, the horizontal sealing mechanism is affected by adjustments to the bag length; each time the highest and lowest points are different, the spring's extension and retraction stroke changes, requiring the replacement of springs with different strokes, making bag length changes extremely inconvenient.

[0003] To address the aforementioned issues, we have made a series of improvements. Utility Model Content

[0004] The purpose of this invention is to provide a horizontal sealing structure to overcome the aforementioned shortcomings and deficiencies of the prior art.

[0005] A horizontal sealing structure includes: a horizontal sealing mechanism, a buffer structure, a ball screw support, a ball screw, a coupling, a servo motor, a pressure regulating valve, and a limit switch. The two sides of the horizontal sealing mechanism are respectively connected to the buffer structure. The horizontal sealing mechanism is connected to the ball screw, which is mounted on the ball screw support. The ball screw is connected to the servo motor via the coupling. The pressure regulating valve and the limit switch are fixed to the multi-row machine wall plate. The pressure regulating valve is connected to the buffer structure via an air pipe.

[0006] The buffer structure includes a balance cylinder, an air pipe connector, a floating connector, and a cylinder port muffler. The bottom of the balance cylinder is provided with an air pipe connector, which is connected to a pressure regulating valve through an air pipe. The top of the balance cylinder is provided with a floating connector, which is connected to a horizontal sealing mechanism. The cylinder port muffler is located on the balance cylinder.

[0007] Furthermore, the pressure regulating valve is equipped with a pressure regulating valve port silencer.

[0008] The beneficial effects of this utility model are:

[0009] Compared with traditional technology, this invention replaces the spring tension with a cylinder, ensuring that the load on the ball screw at any point on the horizontal seal is a stable value, thereby ensuring the durability and lifespan stability of the screw. Attached image description:

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] Figure 2 This is a structural schematic diagram of another state of the present invention.

[0012] Figure 3 This is a side view of the structure of this utility model.

[0013] Figure 4 This is a schematic diagram of the structure of a traditional device.

[0014] Figure label:

[0015] The components include a horizontal sealing mechanism 100, a buffer structure 200, a balance cylinder 210, an air pipe connector 220, a floating connector 230, and a cylinder port muffler 240.

[0016] Ball screw support 300, ball screw 400, coupling 500, servo motor 600, pressure regulating valve 700, pressure regulating valve port silencer 710, and limit switch 800.

[0017] Multi-row machine wall panel 1. Detailed Implementation

[0018] The present invention will be further described below with reference to specific embodiments. It should be understood that the following embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0019] Example 1

[0020] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 2 This is a structural schematic diagram of another state of the present invention. Figure 3 This is a side view of the structure of this utility model. Figure 4 This is a schematic diagram of the structure of a traditional device.

[0021] like Figure 1-3As shown, a horizontal sealing structure includes: a horizontal sealing mechanism 100, a buffer structure 200, a ball screw support 300, a ball screw 400, a coupling 500, a servo motor 600, a pressure regulating valve 700, and a limit switch 800. The two sides of the horizontal sealing mechanism 100 are connected to the buffer structure 200, and the horizontal sealing mechanism 100 is connected to the ball screw 400. The ball screw 400 is mounted on the ball screw support 300 and connected to the servo motor 600 via the coupling 500. The pressure regulating valve 700 and the limit switch 800 are fixed to the multi-row machine wall plate 1. The pressure regulating valve 700 is connected to the buffer structure 200 via an air pipe. The limit switch 800 is a conventional technology, mainly using signal sensing to limit the travel range of the buffer structure 200.

[0022] The buffer structure 200 includes: a balance cylinder 210, an air pipe connector 220, a floating connector 230, and a cylinder port muffler 240. The bottom end of the balance cylinder 210 is provided with an air pipe connector 220, which is connected to the pressure regulating valve 700 through an air pipe. The top end of the balance cylinder 210 is provided with a floating connector 230, which is connected to the horizontal sealing mechanism 100. The cylinder port muffler 240 is located on the balance cylinder 210.

[0023] The pressure regulating valve 700 is equipped with a pressure regulating valve port silencer 710.

[0024] The usage process of this utility model is as follows: When the servo motor 600 rotates, it drives the coupling 500 to rotate, which in turn drives the ball screw 400 to rotate, which in turn drives the horizontal sealing mechanism 100 to move up and down. When the ball screw 400 drives the horizontal sealing mechanism 100 to move down, the piston rod of the balance cylinder 210 retracts, and the air at the bottom is discharged from the silencer 710 at the pressure regulating valve port.

[0025] When the ball screw 400 drives the horizontal sealing mechanism 100 to move upward, the piston rod of the balance cylinder 210 extends, the airflow is provided by the air pressure source, flows into the bottom of the inner cavity of the balance cylinder 210 through the pressure regulating valve 700, and the air in the upper part of the inner cavity is discharged through the cylinder port muffler 240.

[0026] The main purpose of the balancing cylinder 210 is to reduce the load on the servo motor and to balance the weight of the horizontal sealing mechanism with the pressure input by the cylinder.

[0027] The innovation of this invention lies in replacing the spring tension with a balancing cylinder 210. The balancing cylinder 210 receives air from only one side, and its thrust remains constant at any point within its stroke. This avoids the problem of inconsistent thrust at different positions associated with traditional springs, thus ensuring the stability of the horizontal sealing mechanism during its up-and-down movement. The reason for this is that the horizontal sealing mechanism 100 is very heavy, so all the force is borne by the ball screw 400. Therefore, to reduce the weight of the ball screw 400, a buffer component is needed to counteract the force on it. The reason why traditional springs encounter the above problems is that during the movement of the horizontal sealing mechanism 100, the spring's extension length and pressure change, resulting in an inconsistent buffering force and poor equipment stability.

[0028] The present invention uses a balance cylinder 210 instead of a spring structure. The principle is as follows: after going through the process described above, the balance cylinder 210 can adjust the air pressure according to the mass of different sizes of horizontal sealing mechanisms, thus ensuring that the load of the lead screw nut at any point above or below the ball screw 400 is a stable value, and the friction between the lead screw nut and the ball screw 400 remains constant, significantly reducing the wear of the lead screw, thereby ensuring the durability and lifespan stability of the ball screw 400.

[0029] Compared with traditional technology, this invention replaces the spring tension with a cylinder, ensuring that the load on the ball screw at any point on the horizontal seal is a stable value, thereby ensuring the durability and lifespan stability of the screw.

[0030] The specific embodiments of this utility model have been described above, but this utility model is not limited thereto. Various changes can be made to this utility model as long as they do not depart from its spirit.

Claims

1. A horizontal sealing structure, characterized in that, include: The components include a horizontal sealing mechanism (100), a buffer structure (200), a ball screw support (300), a ball screw (400), a coupling (500), a servo motor (600), a pressure regulating valve (700), and a limit switch (800). The two sides of the horizontal sealing mechanism (100) are connected to the buffer structure (200). The horizontal sealing mechanism (100) is connected to the ball screw (400). The ball screw (400) is mounted on the ball screw support (300). The ball screw (400) is connected to the servo motor (600) through the coupling (500). The pressure regulating valve (700) and the limit switch (800) are fixed on the multi-row machine wall plate (1). The pressure regulating valve (700) is connected to the buffer structure (200) through an air pipe. The buffer structure (200) includes: a balance cylinder (210), an air pipe connector (220), a floating connector (230), and a cylinder port muffler (240). The bottom end of the balance cylinder (210) is provided with an air pipe connector (220), which is connected to a pressure regulating valve (700) through an air pipe. The top end of the balance cylinder (210) is provided with a floating connector (230), which is connected to a horizontal sealing mechanism (100). The cylinder port muffler (240) is located on the balance cylinder (210).

2. The horizontal sealing structure according to claim 1, characterized in that, The pressure regulating valve (700) is equipped with a pressure regulating valve port silencer (710).

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