A large industrial vacuum machine system

Abstract

The present invention provides a large-scale industrial vacuum machine system, which includes two subsystems: a vacuum pumping system and a box system, including the following steps: after placing the material, the box seat rises and seals with the box cover, valve 120 is opened, the rotary vane pump performs rough pumping, and then the Roots pump starts to work. When the pressure reaches the set value, valve 120 is closed, valves 110 and valve 130 are opened, and the diffusion pump starts to work. After the air extraction is completed, the pumps of each level stop working. The box body is composed of a box cover and a box seat, wherein the box body is fixedly installed, and the box seat is driven by a cylinder to run along a guide rail. In the present invention, a light curtain sensor is installed between the box cover and the box seat. When the box cover moves upward, the light curtain sensor is connected. When encountering an obstacle, the light curtain sensor is activated, and at the same time, the box cover stops moving and resets, thereby improving the safety of the working process.

Description

Technical Field

[0001] The present invention relates to a vacuum machine system, comprising a vacuum pumping system and a box system, and particularly relates to industrial mass production. Background Art

[0002] In traditional vacuum machine systems, the exhaust pipes between the vacuum system and the box system are often installed individually or in pairs on one side of the box. Although vacuum packaging can be achieved in the end, the pressure inside the box is uneven during operation, and a pressure gradient will be formed from the pipe mouth to the place far away from the pipe mouth, affecting the vacuum packaging speed and quality. At the same time, in the box system that moves up and down, it is difficult to ultimately guarantee the safety of the staff close to the stop button, and safety accidents occur from time to time.

[0003] Therefore, in order to improve the speed and quality of vacuum packaging, a new type of vacuum machine system is proposed. This system is installed on the upper part of the box cover and the bottom of the box seat through two exhaust pipes, and a light curtain sensor is installed on the box body. If the box seat encounters an obstacle during operation, it will stop and reset immediately, improving the safety of the working process. Summary of the invention

[0004] In view of the fact that traditional vacuum machines are slow, of poor quality and of low safety, the present invention proposes an industrial large-scale vacuum machine system which can balance the pressure gradient and improve the safety.

[0005] As an improvement, a large industrial vacuum machine system includes two subsystems, a vacuum pumping system and a box system. The vacuum pumping system includes four pumps: a Roots pump, a rotary vane pump, a maintenance pump and a diffusion pump. The Roots pump and the rotary vane pump are connected in series. The Roots pump and the rotary vane pump are connected with a first pipeline, the first pipeline is connected to the second pipeline, the second pipeline is connected to the third pipeline, and the second pipeline and the third pipeline port are located at the upper end of the diffusion pump, so that the diffusion pump is connected to the upper end with the Roots pump and the rotary vane pump. The bottom of the diffusion pump is connected to a fourth pipeline and a fifth pipeline, and the two pipelines are connected to the sixth pipeline. The sixth pipeline is connected to the sixth pipeline. The seventh pipeline is connected to the maintenance pump, and the eighth pipeline is connected to the first pipeline. The box body includes a box cover and a box seat. The box body is connected to the diffusion pump through a first ventilation pipe on the top of the box cover and a second ventilation pipe on the bottom of the box seat, wherein the end of the second ventilation pipe is a spring tube that can be stretched and compressed. The box cover is fixedly installed by a bracket fixedly connected to the ground, and the box seat can move back and forth up and down along the guide column through a first cylinder arranged at the four corners of the box seat. A frame is fixedly installed in the box cover, and a packaging group is arranged on the frame, each group includes a fixedly installed support plate and two pressure plates symmetrically distributed towards the pressure plate and can move synchronously through the second cylinder.

[0006] As an improvement, a first gas valve is installed at the end of the second pipeline, and a second gas valve is installed at the end of the sixth pipeline.

[0007] As an improvement, light curtain sensors are installed on the box cover and the box base.

[0008] As an improvement, (i) the box cover is fixed, and the box seat moves up and down, and the sealing between the box seat and the box cover and between the pipe connectors must be ensured when closed;

[0009] (ii) The productivity can be increased by increasing the number of packaging groups, but the number of packaging groups should not be too large, generally not more than three groups;

[0010] (3) Spring tubes can achieve stretching and compression within a larger range.

[0011] Through such a structure, the two exhaust pipes are connected to the box cover and the box base respectively, which can make the inward pressure more balanced. At the same time, the productivity can be improved by increasing the packaging group. A light curtain sensor is installed on the box body to avoid personal injury caused by improper operation and improve operational safety.

[0012] Specifically, the advantages and effects of the present invention are:

[0013] (1) Two exhaust pipes are installed on the box cover and the box base respectively to make the pressure inside the box more balanced.

[0014] (2) A light curtain sensor is installed on the box to improve work safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the box system diagram;

[0016] Figure 2 It is an oblique view of the vacuum system;

[0017] Figure 3 This is a frame structure diagram.

[0018] Among them, 170, diffusion pump; 3, first ventilation pipe; 4, second ventilation pipe; 5, box cover; 6, box seat; 7, bracket; 8, first cylinder; 9, light curtain sensor; 10, second cylinder; 11, pressure plate; 12, second pipeline; 13, third pipeline; 14, first pipeline; 15, fifth pipeline; 16, fourth pipeline; 17, sixth pipeline; 18, seventh pipeline; 19, eighth pipeline; 20, support plate; 21, frame; 23, spring tube; 24, guide column; 120, first air valve; 130, second air valve; 140, Roots pump; 150, rotary vane pump; 160, maintenance pump. DETAILED DESCRIPTION

[0019] The present invention is further explained below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art are all within the scope of the claims attached to this application.

[0020] Reference Figure 1-3 The large industrial vacuum machine includes two subsystems, a vacuum pumping system and a box system. The vacuum pumping system includes a diffusion pump 170, a Roots pump 140, a rotary vane pump 150 and a maintenance pump 160. The rotary vane pump 150 and the Roots pump 140 are connected in series and connected to the diffusion pump 170 through a first pipeline 14, a second pipeline 12 and a third pipeline 13. The end of the third pipeline 13 is provided with a first air valve 120. The maintenance pump 160 is connected to the diffusion pump 170 through a fifth pipeline 15, a fourth pipeline 16, a sixth pipeline 17 and a seventh pipeline 18. The sixth pipeline 17 is connected to the diffusion pump 170 through an eighth pipeline 19 is connected to the first pipeline 14, and a second air valve 130 is provided at the end of the sixth pipeline 17, the box body includes a box cover 5 and a box seat 6, a first ventilation pipe 3 is installed on the top of the box cover 5, a second ventilation pipe 4 is installed at the bottom of the box seat 6, the end of the second ventilation pipe 4 is a second pipeline 12, the first ventilation pipe 3 and the second ventilation pipe 4 are respectively connected to two diffusion pumps 170, the box cover 5 is fixedly installed by a bracket 7, a frame 21 is fixedly installed in the box cover 5, a support plate 20 is fixedly installed on the frame 21, a second cylinder 10 is also installed on the frame 21, and the second cylinder 10 is connected to the pressure plate 11.

[0021] Working principle: When starting work, place the material on the support plate 20 and the lower pressure plate 11, the second cylinder 10 is activated to press the material, and then the first cylinder 8 is activated to drive the box seat 6 to move upward along the guide column 24 and close with the box cover 5, the first air valve 120 is opened, the valve 110 and the second air valve 130 are closed for rough pumping, and then the valve 110 and the second air valve 130 are opened, the first air valve 120 is closed, and the diffusion pump 170 starts working for fine pumping; when the pressure setting value is reached, the box seat 6 returns to the bottom again along the guide column 24 under the action of the cylinder, and the material is reloaded, and the cycle continues; when the cylinder is activated, the light curtain sensor 9 of the box seat 6 is opened, and it is closed when encountering an obstacle, and at the same time the box seat 6 stops moving and resets.

[0022] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A large industrial vacuum machine system, characterized in that: The invention comprises two subsystems, a vacuum pumping system and a box system. The vacuum pumping system comprises four pumps: a Roots pump (140), a rotary vane pump (150), a maintenance pump (160) and a diffusion pump (170). The Roots pump (140) and the rotary vane pump (150) are connected in series. A first pipe (14) is connected to the Roots pump (140) and the rotary vane pump (150). The first pipe (14) is connected to a second pipe (12). The second pipe (12) is connected to a third pipe (13). Ports of the second pipe (12) and the third pipe (13) are located at the upper end of the diffusion pump (170), so that the diffusion pump (170) is connected to the upper end with the Roots pump (140) and the rotary vane pump (150). The bottom of the diffusion pump (170) is connected to a fourth pipe (16) and a fifth pipe (15). The two pipes are connected to a sixth pipe (17). The sixth pipe (17) is connected to the bottom of the diffusion pump (170). The box body (17) is connected to the maintenance pump (160) through a seventh pipeline (18), and is connected to the first pipeline (14) through an eighth pipeline (19). The box body comprises a box cover (5) and a box seat (6). The box body is connected to the diffusion pump (170) through a first ventilation pipe (3) at the top of the box cover (5) and a second ventilation pipe (4) at the bottom of the box seat (6), wherein the end of the second ventilation pipe (4) is a spring pipe (23) that can be stretched and compressed. The box cover (5) is fixedly installed through a bracket (7) fixedly connected to the ground. The box seat (6) moves up and down along the guide column (24) through a first cylinder (8) arranged at the four corners of the box seat (6). A frame (21) is fixedly installed in the box cover (5). There are packaging groups on the frame (21), each group comprising a fixedly installed support plate and two pressing plates that are symmetrically distributed opposite to the pressing plate and move synchronously through the second cylinder (10).

2. An industrial large-scale vacuum machine system as claimed in claim 1, characterized in that: A first air valve (120) is installed at the end of the second pipeline (12), and a second air valve (130) is installed at the end of the sixth pipeline (17).

3. An industrial large-scale vacuum machine system as claimed in claim 2, characterized in that: A light curtain sensor (9) is mounted on the box cover (5) and the box base (6).

4. An industrial large-scale vacuum machine system as claimed in claim 3, characterized in that: (i) The box cover (5) is fixed, and the box seat (6) moves up and down. When the box seat (6) and the box cover (5) are closed, the sealing between the box seat (6) and the box cover (5) and between the pipe connectors must be ensured; (ii) Increasing productivity by adding packaging groups, but the number of packaging groups should not be too large, generally not more than three groups; (3) The spring tube can achieve stretching and compression within a larger range.

Images