Gas circuit switching structure

Abstract

The utility model discloses a gas circuit switching structure, and belongs to the technical field of gas circuits used by cutting machines. A plurality of external connecting pipes are fixed to one end of the air bin, an access pipe is fixed to the other end of the air bin, a side plate frame is fixed to the outer wall, close to the access pipe, of the air bin, a blocking mechanism is arranged at the top of the side plate frame and comprises a sealing cover plate capable of moving controllably, and the moving path of the sealing cover plate faces the access pipe. According to the material pulling device for the fan impeller, negative pressure generated by inertia rotation of the fan impeller can be rapidly cut off, so that a cutting machine can immediately carry out material pulling operation, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air circuits used by cutting machines, in particular to an air circuit switching structure. Background Art

[0002] The current fabric and paper laser cutting machines are mainly used in the clothing, carpet, curtain and tablecloth industries. A cutting platform is set up to place the fabric, and an adsorption device is set up to connect the fan air path to generate a negative pressure airflow to adsorb the fabric on the cutting platform to ensure stability during laser cutting.

[0003] However, in the air path of the laser cutting machine's adsorption device, the impeller has a certain inertia when the fan is powered off, which causes the negative pressure airflow to be unable to be quickly cut off. The negative pressure sucks the fabric and it is difficult to move it. The equipment cannot pull the material immediately, thus reducing efficiency.

[0004] Based on this, the utility model designs a gas path switching structure to solve the above problems. Summary of the invention

[0005] The purpose of the utility model is to provide a gas path switching structure to solve the above technical problems.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an air path switching structure, comprising: an air bin; a plurality of external tubes are fixed at one end of the air bin, an access pipe is fixed at the other end of the air bin, a side plate frame is fixed to the outer wall of the air bin close to the access pipe, a sealing mechanism is arranged on the top of the side plate frame, the sealing mechanism comprises a controllably movable sealing plate, the moving path of the sealing plate is arranged toward the access pipe, and is used to control the flow of the access pipe.

[0007] Preferably, the blocking mechanism further comprises a cylinder and a rubber sheet, wherein the cylinder is fixed to the top of the side plate frame, one end of the cylinder telescopic shaft is transmission-connected to the sealing plate, and the rubber sheet is fixedly connected to the outer wall of the sealing plate facing the access pipe.

[0008] Preferably, the plurality of external tubes are arranged in a straight line and connected to the top of the gas bin.

[0009] Preferably, a connecting plate is fixed to the outer wall of the gas bin, and a through hole is opened on the outer wall of the connecting plate.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: by controlling the movement of the sealing plate through the cylinder, the sealing plate together with the rubber sheet blocks the pipe opening of the access pipe, thereby quickly cutting off the negative pressure generated by the inertial rotation of the fan impeller, allowing the cutting machine to immediately perform the material pulling operation, thereby improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0012] Figure 1 It is a schematic diagram of the overall structure of this embodiment;

[0013] Figure 2 It is a schematic diagram highlighting the side plate frame structure of this embodiment;

[0014] Figure 3 It is a schematic diagram highlighting the sealing cover plate structure of this embodiment;

[0015] Figure 4 It is a schematic diagram highlighting the placement of the access pipe and the external connection pipe of this embodiment.

[0016] In the drawings, the list of components represented by each reference numeral is as follows:

[0017] 1. Air chamber; 2. External connection pipe; 3. Access pipe; 4. Side plate frame; 5. Cylinder; 6. Sealing cover plate; 7. Rubber sheet; 8. Connecting plate. Specific embodiments

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0019] Please refer to Figures 1-4 , the present utility model provides a technical solution: an air path switching structure, including: an air chamber 1; a plurality of external connection pipes 2 are fixed at one end of the air chamber 1, an access pipe 3 is fixed at the other end of the air chamber 1, a side plate frame 4 is fixed on the outer wall of the air chamber 1 near the access pipe 3, a plugging mechanism is arranged at the top of the side plate frame 4, the plugging mechanism includes a controllably movable sealing cover plate 6, and the moving path of the sealing cover plate 6 is set towards the access pipe 3 for controlling the flow of the access pipe 3;

[0020] The inner cavity of the air chamber 1 is respectively communicated with the external connection pipe 2 and the access pipe 3, and the side plate frame 4 of the air chamber 1 is close to the access pipe 3, which is convenient for installing the plugging mechanism, so that the sealing cover plate 6 of the plugging mechanism is arranged towards the pipe orifice of the access pipe 3, and the access pipe 3 is quickly plugged by the controllably movable sealing cover plate 6 to cut off the negative pressure generated by the inertial rotation of the fan impeller.

[0021] Preferably, the blocking mechanism further includes a cylinder 5 and a rubber sheet 7, the cylinder 5 is fixed to the top of the side plate frame 4, one end of the telescopic shaft of the cylinder 5 is transmission-connected to the sealing plate 6, and the rubber sheet 7 is fixedly connected to the outer wall of the sealing plate 6 facing the access pipe 3;

[0022] The plugging mechanism uses its cylinder 5 to control the sealing plate 6 and the rubber sheet 7 to move up and down to perform the gas-breaking operation. The sealing plate 6 and the rubber sheet 7 are slightly larger than the pipe opening of the access pipe 3, and the access pipe 3 can be blocked in cooperation with the rubber sheet 7.

[0023] Preferably, the plurality of external pipes 2 are arranged in a straight line and connected to the top of the gas chamber 1;

[0024] The multiple external pipes 2 are arranged in a straight line, which is convenient for meeting the multiple gas path requirements of the equipment.

[0025] Preferably, a connecting plate 8 is fixed to the outer wall of the gas bin 1, and a through hole is opened on the outer wall of the connecting plate 8;

[0026] The gas chamber 1 can be installed with the cutting machine equipment through the through holes of the connecting plate 8 and the bolts.

[0027] A specific application of this embodiment is: the adsorption device of the cutting machine is connected through multiple external tubes 2. As a link in the air circuit, the air bin 1 is connected to the suction port of the negative pressure fan through the connected access tube 3. During operation, the fan starts to suck from the access tube 3, so that the inner cavity of the air bin 1 and the external tube 2 are in a negative pressure state, assisting the adsorption device of the cutting machine to perform adsorption operation. When changing or moving materials, the fan is powered off and its impeller has a certain inertia. At this time, the cylinder 5 controls the movement of the sealing plate 6, so that the sealing plate 6 together with the rubber sheet 7 quickly blocks the pipe mouth of the access tube 3, so as to cut off the negative pressure generated by the inertial rotation of the fan impeller, and then the cutting machine can immediately perform the material pulling operation.

[0028] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In the present utility model, unless otherwise clearly specified or limited, terms such as "installation", "setting", "connection", "fixation", "swivel connection", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. Unless otherwise clearly limited, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A gas path switching structure, characterized in that: include: Gas Chamber (1); A plurality of external tubes (2) are fixed to one end of the gas bin (1), an access tube (3) is fixed to the other end of the gas bin (1), a side plate frame (4) is fixed to the outer wall of the gas bin (1) close to the access tube (3), a blocking mechanism is arranged on the top of the side plate frame (4), and the blocking mechanism comprises a controllably movable sealing plate (6), the moving path of the sealing plate (6) is arranged towards the access tube (3), and is used to control the flow of the access tube (3).

2. A gas path switching structure according to claim 1, characterized in that: The blocking mechanism further comprises a cylinder (5) and a rubber sheet (7); the cylinder (5) is fixed to the top of the side plate frame (4); one end of the telescopic shaft of the cylinder (5) is drivingly connected to the sealing plate (6); and the rubber sheet (7) is fixedly connected to the outer wall of the sealing plate (6) facing the access pipe (3).

3. The gas path switching structure according to claim 1, characterized in that: The plurality of external pipes (2) are arranged in a straight line and connected to the top of the gas chamber (1).

4. The gas path switching structure according to claim 1, characterized in that: A connecting plate (8) is fixed to the outer wall of the gas bin (1), and a through hole is formed on the outer wall of the connecting plate (8).

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