Sand level monitoring structure for waterjet cutting machine

Abstract

The utility model relates to the technical field of water cutting equipment, in particular to a sand level monitoring structure for a water cutting machine, which comprises a sand storage box and a sand adding box, two opposite side walls of the sand storage box are provided with detection ports, and the side walls of the sand storage box are provided with transparent sealing plates for sealing the detection ports. Photoelectric sensors right facing the detection opening are arranged on the two sides of the sand storage box, one photoelectric sensor serves as a transmitting end, the other photoelectric sensor serves as a receiving end, the sand adding box is provided with a sand inlet pipe communicated with the sand storage box, the sand inlet pipe is provided with a sand adding pump, and a sand outlet pipe used for being connected to a water sand cutting head is arranged on the lower portion of the sand storage box. When a sand layer is lower than a detection opening and a photoelectric sensor of a receiving end receives a signal of a photoelectric sensor of a transmitting end, the sand amount is logically judged to be insufficient, a sand adding pump is started to input cutting sand in a sand adding box into a sand storage box through a sand adding pipe, automatic feeding of the sand storage box is achieved, and continuity of sand supply of a water sand cutting head is ensured.

Description

Technical Field

[0001] This application relates to the field of waterjet cutting equipment technology, and in particular to a sand level monitoring structure for a waterjet cutting machine. Background Technology

[0002] Waterjet cutting is a machine that uses high-pressure water jets for cutting. It is also known as waterjet cutting. Waterjet cutting is generally divided into two types: abrasive-free cutting and abrasive cutting. Abrasive cutting involves mixing cutting abrasive into a high-speed water jet, which is then ejected from the cutting head at a certain speed onto the material being processed to achieve cutting.

[0003] In the existing technology, although the remaining amount of cutting abrasive can be seen from the outside in the storage box for storing cutting abrasive, the operator cannot keep an eye on it at all times. Once the supply of cutting abrasive is interrupted, the water abrasive cutting head will only spray high-pressure water jets. When cutting objects such as glass, crystal, and quartz, it is easy to break these objects and generate a lot of consumables. Therefore, further improvement is needed. Utility Model Content

[0004] To ensure the continuity of sand supply to the water jet cutting head, this application provides a sand level monitoring structure for a water jet cutting machine.

[0005] The sand level monitoring structure for a waterjet cutting machine provided in this application adopts the following technical solution:

[0006] A sand level monitoring structure for a waterjet cutting machine includes a sand storage box and a sand filling box. The sand storage box has detection ports on two opposite side walls. The side walls of the sand storage box are equipped with transparent sealing plates to close the detection ports. Photoelectric sensors are installed on both sides of the sand storage box, facing the detection ports. One photoelectric sensor is a transmitter and the other is a receiver. The sand filling box is equipped with a sand inlet pipe connected to the sand storage box and a sand filling pump is installed on the sand inlet pipe. The lower part of the sand storage box is equipped with a sand outlet pipe for connecting to the waterjet cutting head.

[0007] By adopting the above technical solution, photoelectric sensors with through-beam type are used on both sides of the sand storage box. When the sand layer is lower than the detection port, the photoelectric sensor at the receiving end receives the signal from the photoelectric sensor at the transmitting end, and logically determines that the sand quantity is insufficient. The sand adding pump starts to input the cutting sand in the sand adding box into the sand storage box through the sand adding pipe, thereby realizing the automatic feeding of the sand storage box and ensuring the continuity of sand supply to the water-sand cutting head.

[0008] Preferably, the sand storage box has a plurality of first mounting holes surrounding the detection port on its side wall, the transparent sealing plate has a first threaded hole, the transparent sealing plate abuts against the inner wall of the sand storage box, and the sand storage box is provided with bolts that pass through the first mounting holes and are threadedly connected to the first threaded holes.

[0009] By adopting the above technical solution, a reliable connection between the transparent sealing plate and the sand storage box is achieved by opening multiple surrounding detection ports in the first mounting holes on the side wall of the sand storage box and using bolts to engage with the first threaded holes on the transparent sealing plate.

[0010] Preferably, the outer wall of the sand storage box is detachably connected to a mounting base, and the photoelectric sensor is detachably connected to the mounting base.

[0011] By adopting the above technical solution, the mounting base allows the photoelectric sensor to be detachably connected to the outer wall of the sand storage box, which facilitates the installation, disassembly and maintenance of the photoelectric sensor and improves the operability and flexibility of the equipment.

[0012] Preferably, the side wall of the mounting base is provided with a mounting ear plate, the mounting ear plate has a second mounting hole, and the bolt is sequentially passed through the second mounting hole and the first mounting hole and threadedly connected to the first threaded hole.

[0013] By adopting the above technical solution, the mounting base is bolted to the first mounting hole on the side wall of the sand storage box and the first threaded hole on the transparent sealing plate through the second mounting hole on the mounting ear plate, thus achieving a stable installation of the mounting base.

[0014] Preferably, the second mounting hole is a strip-shaped hole.

[0015] By adopting the above technical solution, the design of the strip-shaped hole allows for adjustment of the connection position between the mounting base and the sand storage box. This adjustability ensures that the photoelectric sensor is more accurately aligned with the detection port during installation, thereby improving the accuracy of sand level detection.

[0016] Preferably, the mounting base has a through hole extending horizontally, the head of the photoelectric sensor passes through the through hole, and the upper end face of the mounting base has a second threaded hole communicating with the through hole. The mounting base is provided with a set screw threaded to the second threaded hole, and the set screw abuts against the outer wall of the photoelectric sensor.

[0017] By adopting the above technical solution, a through hole is made on the mounting base for the photoelectric sensor head to pass through, which can accurately fix the position of the photoelectric sensor and ensure its alignment with the transparent sealing plate, thereby improving the accuracy of sand level detection. At the same time, a set screw is provided to abut against the outer wall of the photoelectric sensor, further enhancing the fixing effect of the photoelectric sensor and preventing it from loosening or shifting during use, thus ensuring the stability and reliability of the monitoring structure.

[0018] Preferably, the sand outlet pipe is equipped with a sand outlet control valve to control the sand outlet flow rate.

[0019] By adopting the above technical solution, the sand discharge control valve in the sand discharge pipe can accurately control the sand discharge flow rate, thereby ensuring a stable supply of cutting sand during the cutting process.

[0020] Preferably, a scraper for cleaning the transparent sealing plate is slidably connected inside the sand storage box, and a cylinder for driving the scraper to slide is fixedly connected to the outer wall of the sand storage box.

[0021] By adopting the above technical solution, when it is necessary to clean and maintain the inner wall of the transparent sealing plate, the piston rod of the cylinder extends and retracts to drive the scraper to slide, effectively removing the cutting sand residue or impurities attached to the surface of the transparent sealing plate, and ensuring the light transmittance of the transparent sealing plate.

[0022] In summary, this utility model has the following beneficial effects:

[0023] 1. The sand storage box is equipped with through-beam photoelectric sensors on both sides. When the sand layer is lower than the detection port, the photoelectric sensor at the receiving end receives the signal from the photoelectric sensor at the transmitting end. Logically, it is determined that the sand quantity is insufficient. The sand adding pump is started to input the cutting sand in the sand adding box into the sand storage box through the sand adding pipe, thereby realizing automatic feeding of the sand storage box and ensuring the continuity of sand supply to the water-sand cutting head.

[0024] 2. When the inner wall of the transparent sealing plate needs to be cleaned and maintained, the piston rod of the cylinder extends and retracts to drive the scraper to slide, effectively removing the cutting sand residue or impurities attached to the surface of the transparent sealing plate, ensuring the light transmittance of the transparent sealing plate. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of a sand level monitoring structure for a waterjet cutting machine in Example 1;

[0026] Figure 2 This is a schematic diagram of the internal structure of the sand storage box in Example 1;

[0027] Figure 3 This is a schematic diagram of the installation structure of the transparent sealing plate in Example 1;

[0028] Figure 4 This is a schematic diagram of the connection structure of the photoelectric sensor in Example 1;

[0029] Figure 5 This is a schematic diagram of the internal structure of the sand storage box in Example 2.

[0030] In the diagram, 1. Sand storage box; 11. Detection port; 12. First mounting hole; 13. Bolt; 14. Positioning side strip; 15. Positioning bottom strip; 16. Sand outlet pipe; 17. Sand outlet control valve; 18. Scraper; 19. Cylinder; 2. Sand filling box; 21. Sand inlet pipe; 22. Sand filling pump; 3. Transparent sealing plate; 31. First threaded hole; 4. Mounting base; 41. Mounting ear plate; 42. Second mounting hole; 43. Through hole; 44. Second threaded hole; 45. Set screw; 5. Photoelectric sensor; 10. Moving cutting frame; 20. Water-sand cutting head. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0032] Example 1:

[0033] This application discloses a sand level monitoring structure for a waterjet cutting machine, referring to... Figure 1 It includes a sand storage box 1 and a sand filling box 2. The sand storage box 1 is fixedly connected to the side wall of the mobile cutting frame 10 of the waterjet cutting machine, and the sand filling box 2 is fixedly connected to the upper surface of the mobile cutting frame 10 of the waterjet cutting machine.

[0034] Reference Figure 2 , Figure 3 The sand storage box 1 has two opposite side walls each with a detection port 11 communicating with the inner cavity. The detection port 11 is strip-shaped and vertically oriented along its length. A transparent sealing plate 3 is provided on the side wall of the sand storage box 1 to close the detection port 11. Specifically, the transparent sealing plate 3 is an acrylic sheet. Several first mounting holes 12 are provided on the side wall of the sand storage box 1, surrounding the detection port 11. The transparent sealing plate 3 has a first threaded hole 31. The transparent sealing plate 3 abuts against the inner wall of the sand storage box 1. Positioning side strips 14 located on both sides of the transparent sealing plate 3 and a positioning bottom strip 15 located below the transparent sealing plate 3 are fixedly connected to the inner wall of the sand storage box 1. The side wall of the transparent sealing plate 3 abuts against the positioning side strips 14, and the lower end face of the transparent sealing plate 3 abuts against the positioning bottom strip 15, aligning the first threaded hole 31 with the first mounting hole 12. The sand storage box 1 is provided with bolts 13 that pass through the first mounting hole 12 and are threaded into the first threaded hole 31.

[0035] The sand storage box 1 has mounting bases 4 that can be detachably connected to the outer walls of both opposite sides. Mounting ear plates 41 are fixedly protruding from the two opposite side walls of the mounting base 4. The mounting ear plates 41 have a second mounting hole 42. The second mounting hole 42 is a strip-shaped hole. The second mounting hole 42 corresponds to the first mounting hole 12 located in the middle of the detection port 11. The bolt 13 located in the middle passes through the second mounting hole 42 and the first mounting hole 12 in sequence and is threaded to the first threaded hole 31.

[0036] Reference Figure 2 , Figure 4The mounting base 4 is detachably connected to a photoelectric sensor 5. Two photoelectric sensors 5 are provided, each a through-beam type. One transmitting photoelectric sensor 5 is mounted on one mounting base 4, and the other receiving photoelectric sensor 5 is mounted on the other mounting base 4. In this embodiment, the connection structure between the photoelectric sensor 5 and the mounting base 4 is as follows: the mounting base 4 has a horizontally penetrating through-hole 43, the head of the photoelectric sensor 5 passes through the through-hole 43, and the upper end face of the mounting base 4 has a vertically opening second threaded hole 44 communicating with the through-hole 43. The mounting base 4 is provided with a set screw 45 threadedly connected to the second threaded hole 44, and the set screw 45 abuts against the outer wall of the photoelectric sensor 5.

[0037] Reference Figure 1 The sand filling box 2 is equipped with a sand inlet pipe 21 connected to the top wall of the sand storage box 1. A sand filling pump 22 is installed on the sand inlet pipe 21 and is fixedly connected to the side wall of the sand filling box 2. A sand outlet pipe 16 connected to the water-sand cutting head 20 is connected to the bottom wall of the sand storage box 1. A sand outlet control valve 17 is installed on the sand outlet pipe 16 to control the sand flow rate. In this embodiment, a pressure sensor is also installed on the bottom wall of the sand storage box 1. When the pressure sensor detects a set pressure value, the sand filling pump 22 stops.

[0038] The implementation principle of the sand level monitoring structure for a water jet cutting machine in this embodiment is as follows: When the sand layer in the sand storage box 1 is lower than the detection port 11, when the photoelectric sensor 5 at the receiving end receives the signal from the photoelectric sensor 5 at the transmitting end, it is logically determined that the amount of sand in the sand storage box 1 is insufficient. The sand adding pump 22 starts to input the cutting sand in the sand adding box 2 into the sand storage box 1 through the sand adding pipe. When the pressure sensor detects the set pressure value, the sand adding pump 22 stops, realizing automatic feeding of the sand storage box 1 and ensuring the continuity of sand supply from the water jet cutting head 20.

[0039] Example 2:

[0040] The difference from Example 1 is that, referring to Figure 5 Inside the sand storage box 1, a scraper 18 for cleaning the transparent sealing plate 3 is vertically slidably connected. The scraper 18 abuts against the surface of the transparent sealing plate 3. The scraper 18 is a rubber plate. A cylinder 19 is fixedly connected to the top wall of the sand storage box 1. The piston rod of the cylinder 19 is fixedly connected to the upper end face of the scraper 18.

[0041] Under normal conditions, the piston rod of cylinder 19 retracts, and scraper 18 is positioned above transparent sealing plate 3. When cleaning and maintenance of the inner surface of transparent sealing plate 3 is required, the piston rod of cylinder 19 extends to drive scraper 18 downward, effectively removing cutting sand residue or impurities adhering to the surface of transparent sealing plate 3, ensuring the light transmittance of transparent sealing plate 3.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A sand level monitoring structure for a waterjet cutting machine, characterized in that: The system includes a sand storage box (1) and a sand filling box (2). The sand storage box (1) has two detection ports (11) on its two opposite side walls. The side walls of the sand storage box (1) are provided with transparent sealing plates (3) to close the detection ports (11). The sand storage box (1) has photoelectric sensors (5) on both sides facing the detection ports (11). One photoelectric sensor (5) is the transmitter and the other photoelectric sensor (5) is the receiver. The sand filling box (2) is provided with a sand inlet pipe (21) connected to the sand storage box (1). The sand inlet pipe (21) is provided with a sand filling pump (22). The lower part of the sand storage box (1) is provided with a sand outlet pipe (16) for connecting to the water and sand cutting head (20).

2. The sand level monitoring structure for a waterjet cutting machine according to claim 1, characterized in that: The sand storage box (1) has several first mounting holes (12) around the detection port (11) on its side wall. The transparent sealing plate (3) has a first threaded hole (31). The transparent sealing plate (3) abuts against the inner wall of the sand storage box (1). The sand storage box (1) is provided with a bolt (13) that passes through the first mounting hole (12) and is threaded to the first threaded hole (31).

3. The sand level monitoring structure for a waterjet cutting machine according to claim 2, characterized in that: The outer wall of the sand storage box (1) is detachably connected to the mounting base (4), and the photoelectric sensor (5) is detachably connected to the mounting base (4).

4. The sand level monitoring structure for a waterjet cutting machine according to claim 3, characterized in that: The mounting base (4) has a mounting ear plate (41) protruding from its side wall. The mounting ear plate (41) has a second mounting hole (42). The bolt (13) passes through the second mounting hole (42) and the first mounting hole (12) in sequence and is threaded to the first threaded hole (31).

5. The sand level monitoring structure for a waterjet cutting machine according to claim 4, characterized in that: The second mounting hole (42) is a strip hole.

6. The sand level monitoring structure for a waterjet cutting machine according to claim 3, characterized in that: The mounting base (4) has a through hole (43) that runs horizontally through it. The head of the photoelectric sensor (5) passes through the through hole (43). The upper end face of the mounting base (4) has a second threaded hole (44) that runs vertically through the through hole (43). The mounting base (4) is provided with a set screw (45) that is threaded into the second threaded hole (44). The set screw (45) abuts against the outer wall of the photoelectric sensor (5).

7. The sand level monitoring structure for a waterjet cutting machine according to claim 1, characterized in that: The sand outlet pipe (16) is equipped with a sand outlet control valve (17) to control the sand outlet flow rate.

8. The sand level monitoring structure for a waterjet cutting machine according to claim 1, characterized in that: The sand storage box (1) is slidably connected to a scraper (18) for cleaning the transparent sealing plate (3), and the outer wall of the sand storage box (1) is fixedly connected to a cylinder (19) for driving the scraper (18) to slide.

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