Sand supply mechanism of water jet cutting machine

Abstract

The utility model discloses a sand supply mechanism of a water jet cutting machine, which comprises a sand supply barrel, a sand supply pipeline and a drying pipeline, the sand supply pipeline comprises an input guide pipe, a sand conveying pipe and an output guide pipe which are sequentially connected, and the sand supply barrel is provided with an output port communicated with the input guide pipe; the drying pipeline comprises an air inlet pipe and an exhaust pipe, the air inlet pipe communicates with the top side of the input conduit, an electric heating wire and a first filter screen are arranged in the air inlet pipe, the exhaust pipe communicates with the top side of the output conduit, a connecting block, a spring and a second filter screen are arranged in the exhaust pipe, the spring is axially arranged parallel to the exhaust pipe, and the two ends of the spring are connected with the edge of the second filter screen and the connecting block respectively; and valves are respectively arranged on the air inlet pipe and the exhaust pipe. According to the sand supply mechanism of the water jet cutting machine, on the premise of normal exhaust, abrasive materials can be prevented from being blown out, abrasive material waste is reduced, and cleaning is prevented from being affected.

Description

Technical Field

[0001] The utility model relates to the technical field of water jet cutting machines, in particular to a sand supply mechanism of a water jet cutting machine. Background Art

[0002] The water jet cutting machine is a cutting device that uses ultra-high pressure water jets for cold cutting. There are two basic forms of the jet cutting head used for cutting, one is pure water cutting, and the other is abrasive cutting. The abrasive cutting cutting head is based on the pure water cutting head, with an abrasive mixing chamber and a hard nozzle. The existing sand supply barrel used to provide abrasives can supply sand to the abrasive mixing chamber through a pipeline. At the same time, in order to avoid the pipeline being blocked due to moisture in the sand supply pipeline, a hot air drying structure is generally added. However, the pipeline for outputting hot air in the existing technology lacks protection. When abrasives are present in the pipeline for conveying abrasives, they are easily discharged to the outside of the pipeline with the wind, resulting in a waste of abrasives. The abrasives finally fall around the equipment, which also affects cleaning. Utility Model Content

[0003] In view of the above problems, the utility model provides a sand supply mechanism for a water jet cutting machine, which can prevent abrasive from blowing out, reduce abrasive waste and avoid affecting cleaning under the premise of normal exhaust.

[0004] The technical solution of the utility model is as follows:

[0005] A sand supply mechanism for a water jet cutting machine comprises a sand supply bucket and a sand supply pipeline, and also comprises a drying pipeline, wherein the sand supply pipeline comprises an input conduit, a sand delivery pipe and an output conduit connected in sequence, and the sand supply bucket is provided with an output port connected to the input conduit; the drying pipeline comprises an air intake pipe and an exhaust pipe, wherein the air intake pipe is connected and arranged on the top side of the input conduit, an electric heating wire and a first filter are arranged in the air intake pipe, and the exhaust pipe is connected and arranged on the top side of the output conduit, a connecting block, a spring and a second filter are arranged in the exhaust pipe, the spring is arranged parallel to the axial direction of the exhaust pipe, and the two ends are respectively connected to the edge of the second filter and the connecting block; valves are respectively provided on the air intake pipe and the exhaust pipe.

[0006] In a further technical solution, a first supporting edge is provided around the inner wall of the bottom side of the exhaust pipe, the connecting block is in a circular ring shape and can be detachably mounted on the first supporting edge, the second filter is provided on the inner side of the first supporting edge on the bottom side of the connecting block, and the second filter can move axially in the exhaust pipe relative to the first supporting edge.

[0007] In a further technical solution, the air intake pipe includes a connecting section and a fixed section, the connecting section is detachably arranged on the top of the fixed section, the heating wire is arranged in the connecting section, a second supporting edge is arranged around the fixed section, and the first filter is detachably mounted on the second supporting edge.

[0008] In a further technical solution, a drying structure for drying the interior of the sand conveying pipe is provided on the sand conveying pipe.

[0009] In a further technical solution, drying ports are spaced apart on the sand conveying pipe, and the drying structure includes a supporting net, a movable cover and a desiccant. The supporting net is arranged on the side of the drying port close to the inside of the sand conveying pipe, the movable cover is arranged on the side of the drying port close to the outside of the sand conveying pipe, and the desiccant is arranged on the supporting net.

[0010] In a further technical solution, an electric heating plate is provided on the outer side of one end of the sand transport pipe connected to the output conduit.

[0011] The beneficial effects of the utility model are:

[0012] 1. Before or after the sand supply bucket supplies sand to the sand supply pipeline or during the sand supply process, if the sand supply pipeline is damp, open the valves of the air inlet and exhaust pipes, connect the air supply equipment to the air inlet pipe to supply gas, and the gas enters the sand supply pipeline after being heated by the electric heating wire to dry the sand supply pipeline, which can prevent the sand supply pipeline from being blocked due to moisture. The first filter can prevent the abrasive from entering the air inlet pipe, and the second filter can prevent the abrasive from entering the exhaust pipe with the hot air, which can prevent the abrasive from being blown out, reduce the waste of abrasive, and avoid affecting cleaning. In addition, since the second filter is connected with a spring, it can swing up and down under the influence of wind and gravity. Even if the abrasive is blocked for a long time, it is not easy to block the second filter, which is conducive to the normal exhaust of the exhaust pipe;

[0013] 2. The first filter and the second filter can be removed separately for easy cleaning;

[0014] 3. The desiccant can effectively remove moisture from the inside of the sand conveying pipe for a long time, and it is convenient to replace the desiccant;

[0015] 4. The electric heater can heat the sand conveying pipe to avoid the temperature of the hot air input from the air inlet pipe being reduced due to the excessive length of the sand conveying pipe, thereby ensuring the drying effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a sand supply mechanism of a water jet cutting machine according to an embodiment of the utility model;

[0017] Figure 2 It is a cross-sectional schematic diagram of the exhaust pipe described in the embodiment of the utility model;

[0018] Figure 3 is a cross-sectional schematic diagram of the air intake pipe according to the embodiment of the utility model;

[0019] Figure 4 It is a cross-sectional schematic diagram of the sand transport pipe described in the embodiment of the utility model.

[0020] Description of reference numerals:

[0021] 10. Sand supply bucket; 11. Output port; 20. Input duct; 30. Sand delivery pipe; 40. Output duct; 50. Air inlet pipe; 51. Connecting section; 52. Fixed section; 53. Heating wire; 54. First filter screen; 60. Exhaust pipe; 61. Connecting block; 62. Spring; 63. Second filter screen; 70. Drying structure; 71. Support net; 72. Movable cover; 73. Desiccant; 80. Heating plate. DETAILED DESCRIPTION

[0022] The embodiments of the present utility model will be further described below in conjunction with the accompanying drawings.

[0023] Example:

[0024] like Figure 1-Figure 4 As shown, a sand supply mechanism of a water jet cutting machine includes a sand supply bucket 10, a sand supply pipeline and a drying pipeline. The sand supply pipeline includes an input conduit 20, a sand delivery pipe 30 and an output conduit 40 connected in sequence. The sand supply bucket 10 is provided with an output port 11 connected to the input conduit 20; the drying pipeline includes an air intake pipe 50 and an exhaust pipe 60. The air intake pipe 50 is connected and arranged on the top side of the input conduit 20. A heating wire 53 and a first filter screen 54 are arranged in the air intake pipe 50. The exhaust pipe 60 is connected and arranged on the top side of the output conduit 40. A connecting block 61, a spring 62 and a second filter screen 63 are arranged in the exhaust pipe 60. The spring 62 is arranged parallel to the axial direction of the exhaust pipe 60, and the two ends are respectively connected to the edge of the second filter screen 63 and the connecting block 61; valves are respectively provided on the air intake pipe 50 and the exhaust pipe 60.

[0025] The working principle of the above technical solution is as follows:

[0026] The process of the sand supply bucket 10 supplying sand to the sand supply pipeline is the prior art. Before, during or after the sand supply, if the sand supply pipeline becomes damp, the valves of the air inlet pipe 50 and the exhaust pipe 60 can be opened, and the air can be supplied through the air inlet pipe 50 connected to the air transmission equipment. The gas is heated by the electric heating wire 53 and enters the sand supply pipeline to dry the sand supply pipeline, thereby preventing the sand supply pipeline from being blocked due to moisture. The first filter screen 54 can prevent the abrasive from entering the air inlet pipe 50, and the second filter screen 63 can prevent the abrasive from entering the exhaust pipe 60 with the hot air, thereby preventing the abrasive from being blown out. In addition, since the second filter screen 63 is connected to the spring 62, it can swing up and down under the influence of wind and gravity, so that the abrasive is not easy to block the second filter screen 63.

[0027] In another embodiment, if Figure 2-3As shown, the inner wall of the bottom side of the exhaust pipe 60 is surrounded by a first support edge, the connecting block 61 is annular and detachably mounted on the first support edge, the second filter 63 is arranged inside the first support edge at the bottom side of the connecting block 61, and a gap of 0.25mm-0.5mm is left between the second filter 63 and the first support edge, so that the second filter 63 can move axially in the exhaust pipe 60 relative to the first support edge; the intake pipe 50 includes a connecting section 51 and a fixed section 52, the connecting section 51 is detachably arranged at the top of the fixed section 52, the heating wire 53 is arranged in the connecting section 51, the fixed section 52 is surrounded by a second support edge, and the first filter 54 is detachably mounted on the second support edge. The first filter 54 and the second filter 63 can be removed separately for easy cleaning.

[0028] In another embodiment, if Figure 4 As shown, a drying structure 70 for drying the inside of the sand conveying pipe 30 is provided on the sand conveying pipe 30, and drying ports are provided at intervals on the sand conveying pipe 30. The drying structure 70 includes a support net 71, a movable cover 72, and a desiccant 73. The support net 71 is provided on the side of the drying port close to the inside of the sand conveying pipe 30, the movable cover 72 is provided on the side of the drying port close to the outside of the sand conveying pipe 30, and the desiccant 73 is provided on the support net 71. The movable cover 72 can be opened, and the desiccant 73 can be placed on the support net 71. The support net 71 is connected to the inside of the sand conveying pipe 30, and the desiccant 73 can be effectively dehumidified for a long time inside the sand conveying pipe 30, and the desiccant 73 can be easily replaced.

[0029] In another embodiment, if Figure 1 As shown, an electric heater 80 is disposed outside one end of the sand conveying pipe 30 connected to the output conduit 40. The electric heater 80 can heat the sand conveying pipe 30 to avoid the temperature of the hot air input by the air inlet pipe 50 being reduced due to the excessive length of the sand conveying pipe 30, thereby ensuring the drying effect.

[0030] The above-mentioned embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A sand supply mechanism for a water jet cutting machine, comprising a sand supply bucket and a sand supply pipeline, characterized in that: It also includes a drying pipeline, the sand supply pipeline includes an input conduit, a sand delivery pipe and an output conduit connected in sequence, and the sand supply barrel is provided with an output port connected to the input conduit; the drying pipeline includes an air intake pipe and an exhaust pipe, the air intake pipe is connected and arranged on the top side of the input conduit, the air intake pipe is provided with an electric heating wire and a first filter screen, the exhaust pipe is connected and arranged on the top side of the output conduit, a connecting block, a spring and a second filter screen are provided in the exhaust pipe, the spring is arranged parallel to the axial direction of the exhaust pipe, and the two ends are respectively connected to the edge of the second filter screen and the connecting block; valves are respectively provided on the air intake pipe and the exhaust pipe.

2. The sand supply mechanism of a water jet cutting machine according to claim 1, characterized in that: A first supporting edge is arranged around the inner wall of the bottom side of the exhaust pipe, the connecting block is in a circular ring shape and is detachably mounted on the first supporting edge, the second filter is arranged on the inner side of the first supporting edge on the bottom side of the connecting block, and the second filter can move axially in the exhaust pipe relative to the first supporting edge.

3. The sand supply mechanism of a water jet cutting machine according to claim 1, characterized in that: The air intake pipe includes a connecting section and a fixed section, the connecting section is detachably arranged on the top of the fixed section, the heating wire is arranged in the connecting section, a second supporting edge is arranged around the fixed section, and the first filter is detachably mounted on the second supporting edge.

4. The sand supply mechanism of a water jet cutting machine according to claim 1, characterized in that: The sand conveying pipe is provided with a drying structure for drying the interior of the sand conveying pipe.

5. The sand supply mechanism of a water jet cutting machine according to claim 4, characterized in that: The sand conveying pipe is provided with drying ports at intervals, and the drying structure comprises a supporting net, a movable cover and a desiccant. The supporting net is arranged on the side of the drying port close to the inside of the sand conveying pipe, the movable cover is arranged on the side of the drying port close to the outside of the sand conveying pipe, and the desiccant is arranged on the supporting net.

6. The sand supply mechanism of a water jet cutting machine according to claim 1, characterized in that: An electric heating sheet is arranged on the outer side of one end of the sand conveying pipe connected to the output conduit.

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