Cutting device for water cutting machine

Abstract

The invention provides a cutting device for a water cutting machine, and relates to the technical field of water cutting, the cutting device comprises a shell and a dosing structure, the shell is fixedly connected with a control panel, a circulating mechanism is arranged outside the shell, a moving mechanism is arranged at the top in the shell, a fixed collecting mechanism is arranged at the bottom in the shell, and a height adjusting structure is arranged below the moving mechanism. A water cutting head is arranged at the working end of the height adjusting structure, and a scale removing mechanism is arranged in the fixed collecting mechanism. The scale removing mechanism comprises a pipe seat, the pipe seat penetrates through and is fixedly connected to the bottom of the machine shell, a rotary connecting sleeve is fixedly connected to the pipe seat, an injection pipe is rotationally connected to the top end of the rotary connecting sleeve, a driving nozzle and a scale removing nozzle are arranged on the injection pipe in a staggered mode, a row nozzle is connected to the scale removing nozzle through a bolt, and a plurality of injection holes are formed in the row nozzle. The top of the injection pipe is provided with a rotating structure, and the bottom of the pipe seat is connected with a dosing structure. The technical problems that a water cutting mechanism is lack of effective mixing of a water body and an abrasive material and is lack of a descaling structure are solved.

Description

Technical Field

[0001] This invention belongs to the field of waterjet cutting technology, and specifically relates to a cutting device for a waterjet cutting machine. Background Technology

[0002] Waterjet cutting, also known as water jet cutting, is a technology that uses the kinetic energy of high-pressure water jets or a mixture of abrasives to cut materials. Its core principle is to pressurize water to 200-400 MPa using a high-pressure pump, then focus it through a nozzle to form a high-speed water jet, utilizing the impact force and kinetic energy of the water flow to complete the cut. A search revealed a water-cutting machine invention patent application with publication number CN108145788A. This invention patent application proposes a water-cutting mechanism that can continuously output materials, perform high-precision cutting of materials, and realize the recycling and filtration of wastewater. However, the above-mentioned water-cutting mechanism lacks a structure for fully mixing water and abrasive, as well as a descaling structure for removing scale within the wastewater recycling structure. Summary of the Invention

[0003] The present invention provides a cutting device for a waterjet cutting machine to solve at least one of the technical problems mentioned above.

[0004] To solve the above-mentioned technical problems, the present invention discloses a cutting device for a water jet cutting machine, including a housing and a chemical dosing structure. A control panel is fixedly connected to the housing. A circulation mechanism is provided outside the housing. A moving mechanism is provided at the top inside the housing. A fixed collection mechanism is provided at the bottom inside the housing. A height adjustment structure is provided below the moving mechanism. A water jet cutting head is provided at the working end of the height adjustment structure. A scale removal mechanism is provided inside the fixed collection mechanism. The descaling mechanism includes a tube seat that runs through and is fixedly connected to the bottom of the housing. A rotating connecting sleeve is fixedly connected to the tube seat, and a spray pipe is rotatably connected to the top of the rotating connecting sleeve. The spray pipe is provided with drive nozzles and descaling nozzles in an alternating pattern. A discharge nozzle is bolted to the descaling nozzle, and the discharge nozzle is provided with several spray holes. The top of the spray pipe is provided with a rotating structure, and the bottom of the tube seat is connected to the dosing structure.

[0005] Preferably, the circulation mechanism includes a collecting pump located on the side of the machine casing, a mixing tank located at the rear of the machine casing, a connecting pipe connecting the first output end of the collecting pump to the left input end of the mixing tank, a storage tank located above the mixing tank, a feeding pipe connecting the top input end of the mixing tank to the storage tank, a pressurizing pump located on the right side of the mixing tank, a first water pipe connecting the right output end of the mixing tank to the pressurizing pump, a second water pipe connecting the output end of the pressurizing pump, the second water pipe passing through and fixed to the machine casing, and the output end of the second water pipe connecting to the water cutting head via a telescopic pipe. The collecting pump, mixing tank, storage tank, and pressurizing pump are all bolted to the machine casing.

[0006] Preferably, a partition is fixedly connected inside the mixing chamber, and a venturi tube is provided above the partition. The left input end of the mixing chamber is connected to the left input end of the venturi tube, and the top input end of the mixing chamber is connected to the center input end of the venturi tube. The output end of the venturi tube passes through and is fixedly connected to the partition. A rotating shaft is provided below the partition, passes through and is rotatably connected to the mixing chamber. A rotating blade is bolted to the rotating shaft. A stirring motor is bolted to the outside of the mixing chamber, and the rotating shaft is fixedly connected to the output shaft of the stirring motor.

[0007] Preferably, the moving mechanism includes a first lead screw and a guide rod. A left longitudinal sliding groove and a right longitudinal sliding groove are provided on the two inner side walls of the housing. The first lead screw and the guide rod are respectively located in the left and right longitudinal sliding grooves. The first lead screw passes through and is rotatably connected to the housing. A first drive motor is bolted to the rear side of the housing. The first lead screw is bolted to the output shaft of the first drive motor. The guide rod is bolted to the housing. A sliding bracket is provided between the first lead screw and the guide rod. The left side of the sliding bracket is threadedly connected to the first lead screw, and the right side of the sliding bracket is slidably connected to the guide rod. The sliding bracket slides relative to both the left and right longitudinal sliding grooves. The sliding bracket has a transverse structure.

[0008] Preferably, the transverse structure includes a second lead screw, which is rotatably connected inside a sliding bracket. A second drive motor is bolted to the top of the sliding bracket. A waterproof shell is provided outside the second drive motor, and the waterproof shell is bolted to the sliding bracket. The output end of the second drive motor is connected to the second lead screw via a belt. A sliding block is threaded onto the second lead screw, and the sliding block slides relative to the sliding bracket. A height adjustment structure is provided on the sliding block.

[0009] Preferably, the height adjustment structure includes an electric telescopic rod, which is bolted to a sliding block, and a connecting plate is bolted to the working end of the electric telescopic rod, with the waterjet cutting head bolted to the connecting plate.

[0010] Preferably, the fixed collection mechanism includes a grid plate bolted to the machine housing. A collection chamber is provided below the grid plate, and a collection pipe and a waste discharge pipe are provided at the bottom of the collection chamber. Both the collection pipe and the waste discharge pipe pass through and are fixed to the machine housing. The collection pipe is connected to the input end of the collection pump. A filter box is provided inside the collection chamber. The filter box passes through and is slidably connected to the machine housing. Two clamping plates are symmetrically provided above the grid plate. Both sets of clamping plates slide relative to the grid plate. The two sets of clamping plates are bolted to the working ends of two sets of electric telescopic cylinders. The two sets of electric telescopic cylinders pass through and are bolted to the left and right sides of the machine housing, respectively.

[0011] Preferably, the filter box has coarse filter screens on both the top and bottom sides, a pull-out groove in the center of the filter box, a middle filter box that is slidably connected in the pull-out groove, a middle filter plate that is hinged to the top of the middle filter box, and a grid screen at the bottom of the middle filter box, on which fine filter paper is laid.

[0012] Preferably, the rotating structure includes a collision card, which is fixedly connected to the top of the injection pipe. A rotating card is provided between the collision card and the injection pipe. The rotating card is rotatably connected to the injection pipe. A guide groove is provided on the rotating card, which corresponds to the drive nozzle. The rotating card and the collision card cooperate with each other. A rotating elastic element is provided between the rotating card and the collision card.

[0013] Preferably, the dosing structure includes a dosing holder bolted to the front side of the housing. A negative pressure dosing bottle is provided on the dosing holder. A hollow dosing needle is passed through and fixedly connected to the dosing holder. The hollow dosing needle is connected to the negative pressure dosing bottle. A one-way valve is provided inside the hollow dosing needle. The bottom of the hollow dosing needle is connected to a T-shaped connecting pipe. One end of the T-shaped connecting pipe is connected to a pipe seat through a pipe, and the other end of the T-shaped connecting pipe is connected to the second output end of the collecting pump through a pipe.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention enables three-dimensional positioning of materials through a moving mechanism and a height adjustment structure, and allows for complex curve cutting; 2. The present invention utilizes a circulation mechanism to achieve thorough mixing of water and abrasive through a two-stage structure, which greatly improves the mixing efficiency and effectively reduces the sedimentation rate of abrasive in water. 3. This invention utilizes a descaling mechanism to descale the fixed collection mechanism. This design can prevent scale buildup inside the fixed collection mechanism from affecting the circulation of water in the circulation mechanism, thereby improving the water recycling rate. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the descaling mechanism of the present invention; Figure 3 This is a schematic diagram of the rear-side structure of the present invention; Figure 4 This is a schematic diagram of the mixing box of the present invention; Figure 5 This is a cross-sectional structural diagram of the mixing box of the present invention; Figure 6 This is a cross-sectional structural diagram of the present invention; Figure 7 This is a schematic diagram of the filter box of the present invention; Figure 8 This is a cross-sectional structural diagram of the filter box of the present invention; Figure 9 This is a schematic diagram of the drug delivery structure of the present invention.

[0016] In the diagram: 1. Casing; 11. Control panel; 12. Water jet cutting head; 2. Circulation mechanism; 21. Collection pump; 22. Connecting pipe; 23. Storage tank; 24. Feed pipe; 25. Pressure pump; 26. First water pipe; 27. Second water pipe; 3. Mixing tank; 31. Baffle; 32. Venturi tube; 33. Rotating shaft; 34. Rotating blade; 35. Stirring motor; 4. Moving mechanism; 41. First lead screw; 42. Guide rod; 43. Left longitudinal transfer groove; 44. Right longitudinal transfer groove; 45. First drive motor; 46. Sliding bracket; 5. Transverse structure; 51. Second lead screw; 52. Second drive motor; 53. Waterproof shell; 54. Belt; 55. Sliding block; 6. Height adjustment structure; 61. Electric... 62. Telescopic rod; 7. Connecting plate; 8. Fixed collection mechanism; 9. Grille plate; 10. Collection chamber; 11. Collection pipe; 12. Clamping plate; 13. Electric telescopic cylinder; 14. Waste discharge pipe; 15. Filter box; 16. Coarse filter screen; 17. Pull-out groove; 18. Medium filter box; 19. Medium filter plate; 10. Grille; 11. Fine filter paper; 12. Scale removal mechanism; 13. Pipe seat; 14. Rotating connecting sleeve; 15. Injection pipe; 16. Drive nozzle; 17. Scale removal nozzle; 18. Exhaust spray; 19. Rotating structure; 10. Collision clamp; 10. Rotating clamp; 11. Flow guide groove; 12. Rotating elastic element; 10. Dosing structure; 11. Drug holder; 12. Hollow drug guide needle; 13. T-shaped connecting pipe. Detailed Implementation

[0017] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0018] Furthermore, in this invention, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the invention. They are merely used to distinguish components or operations described using the same technical terms and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions and features of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0019] The present invention provides the following embodiments: Example 1

[0020] This invention provides a cutting device for a waterjet cutting machine, such as... Figure 1 , Figure 2 As shown, a cutting device for a water jet cutting machine includes a housing 1 and a chemical dosing structure 10. A control panel 11 is fixedly connected to the housing 1. A circulation mechanism 2 is provided outside the housing 1. A moving mechanism 4 is provided at the top inside the housing 1. A fixed collection mechanism 7 is provided at the bottom inside the housing 1. A height adjustment structure 6 is provided below the moving mechanism 4. A water jet cutting head 12 is provided at the working end of the height adjustment structure 6. A scale removal mechanism 9 is provided inside the fixed collection mechanism 7. The descaling mechanism 9 includes a pipe seat 91, which is connected to the bottom of the housing 1. A rotating connecting sleeve 92 is fixedly connected to the pipe seat 91. A spray pipe 93 is rotatably connected to the top of the rotating connecting sleeve 92. A drive nozzle 94 and a descaling nozzle 95 are alternately arranged on the spray pipe 93. A discharge nozzle 96 is bolted to the descaling nozzle 95. The discharge nozzle 96 is provided with several spray holes. A rotating structure 97 is provided at the top of the spray pipe 93. The bottom of the pipe seat 91 is connected to the dosing structure 10.

[0021] The working principle and beneficial effects of the above technical solution are as follows: When cutting materials, the materials are placed inside the casing 1, the fixed collection mechanism 7 fixes the materials, the operation command is input on the control panel 11, and the moving mechanism 4 achieves planar positioning of the materials by moving horizontally and vertically. After moving to the designated location, the height adjustment structure 6 drives the water cutting head 12 to descend, and the water supply pipe delivers a certain amount of water to the circulation mechanism 2. The circulation mechanism 2 cuts off the connection with the descaling mechanism, the circulation mechanism 2 pressurizes the water and mixes the water and abrasive through an independent component, and then outputs the abrasive mixture to cut the materials. After the water and abrasive are cut, they are recycled again through the fixed collection mechanism 7 and then output again through the circulation mechanism 2. When the cutting device operates for a long time, causing scale to accumulate inside the casing 1, descaling can be performed when the cutting device is idle after material cutting is completed. The circulation mechanism 2 connects to the descaling mechanism 9 and closes the internal pipeline of the circulation mechanism 2. The water supply pipe delivers water to the circulation mechanism 2. The components of the circulation mechanism 2 send the water to the descaling mechanism 9 to perform the descaling operation. After the high-pressure water flows through the dosing structure 10 and the descaling agent is added, it enters the spray pipe 93 from the pipe seat 91 and is sprayed out at high speed from the drive nozzle 94. The impact force of the high-pressure water flow drives the rotating structure 97, causing the spray pipe 93 to rotate around the rotating connecting sleeve 92. When the spray pipe 93 rotates, both the drive nozzle 94 and the descaling nozzle 95 continuously output high-pressure water flow. The high-pressure water flow from the descaling nozzle 95 is further divided into several high-pressure branches by the exhaust nozzle 96. The high-pressure water on the drive nozzle 94 and the exhaust nozzle 96 is sprayed onto the inner wall of the casing 1 (collection chamber 72), using the descaling agent and the impact force of the water flow to soften and remove the scale. This invention realizes a three-dimensional positioning system through the moving mechanism 4 and the height adjustment structure 6, which can support complex curve cutting. The circulation mechanism 2 can collect water and abrasive in a timely manner, reducing water consumption and wastewater treatment costs. Furthermore, the circulation mechanism 2 mixes water and abrasive through a separate structure, which effectively improves the mixing efficiency of water and abrasive. The fixed collection mechanism 7 can recycle water and abrasive, avoiding waste of resources. At the same time, the scale removal mechanism 9 can prevent scale from accumulating in the fixed collection mechanism 7 and can remove it in a timely manner, avoiding scale pollution of water and thus preventing the circulation mechanism 2 from being reused.

[0022] Example 2

[0023] Based on Example 1, such as Figure 3 , Figure 4 , Figure 5 As shown, the circulation mechanism 2 includes a collection pump 21, which is located on the side of the housing 1. A mixing tank 3 is located on the rear side of the housing 1. The first output end of the collection pump 21 is connected to the left input end of the mixing tank 3 via a connecting pipe 22. A storage tank 23 is located above the mixing tank 3. The top input end of the mixing tank 3 is connected to the storage tank 23 via a feed pipe 24. A pressure pump 25 is located on the right side of the mixing tank 3. The right output end of the mixing tank 3 is connected to the pressure pump 25 via a first water pipe 26. The output end of the pressure pump 25 is connected to a second water pipe 27, which passes through and is fixed to the housing 1. The output end of the second water pipe 27 is connected to the water cutting head 12 via a telescopic pipe. The collection pump 21, the mixing tank 3, the storage tank 23, and the pressure pump 25 are all bolted to the housing 1.

[0024] A partition 31 is fixedly connected inside the mixing chamber 3. A venturi tube 32 is provided above the partition 31. The left input end of the mixing chamber 3 is connected to the left input end of the venturi tube 32. The top input end of the mixing chamber 3 is connected to the center input end of the venturi tube 32. The output end of the venturi tube 32 passes through and is fixedly connected to the partition 31. A rotating shaft 33 is provided below the partition 31. The rotating shaft 33 passes through and is rotatably connected to the mixing chamber 3. A rotating blade 34 is bolted to the rotating shaft 33. A stirring motor 35 is bolted to the outside of the mixing chamber 3. The rotating shaft 33 is fixedly connected to the output shaft of the stirring motor 35.

[0025] The working principle and beneficial effects of the above technical solution are as follows: When material cutting is performed, the water supply pipe delivers a certain amount of water to the first input end of the collecting pump 21. The collecting pump 21 closes the second output end and opens the first output end. Subsequently, the first output end of the collecting pump 21 delivers water to the left input end of the mixing tank 3 through the connecting pipe 22 on the side of the casing 1. At the same time, the abrasive in the storage tank 23 is delivered to the top input end of the mixing tank 3 through the feed pipe 24. After the water and abrasive enter the mixing tank 3, they enter the left input end and the middle input end of the venturi tube 32, respectively. The water and abrasive flow at high speed in the venturi tube 32. Through the contraction-expansion structure, turbulence is generated, which makes the abrasive particles evenly dispersed in the water flow, initially forming a mixture. Subsequently, the initially mixed water and abrasive mixture enters the area below the baffle 31 through the output end of the venturi tube 32. The stirring motor 35 drives the rotating shaft 33 to drive the rotating blade 34 to mechanically stir the mixture, further breaking up the abrasive agglomerates and ensuring uniform concentration. To ensure the abrasive's properties and prevent large abrasive particles from settling, the uniformly mixed abrasive and water are centrifugally driven, circulating along the edge of the rotating blade 34. The mixture then enters the pressurizing pump 25 through the first water pipe 26 at the bottom of the mixing tank 3. The pressurizing pump 25 increases the pressure and then delivers the water to the water jet cutting head 12 via the second water pipe 27, forming a high-speed abrasive jet to complete the cutting operation. After cutting, the water is separated and filtered in the fixed collection mechanism 7. The second input end of the collection pump 21 then collects the water from the fixed collection mechanism 7, entering the next cycle. During the cycle, when water is consumed, the water supply pipe replenishes the water. When performing descaling, the second input end and the first output end of the collection pump 21 are closed, and the water supply pipe inputs water to the first input end of the collection pump 21 and delivers water to the descaling mechanism 9 from the second output end. This invention utilizes a two-stage structure of a venturi tube 32 and a rotating impeller 34 to improve the mixing uniformity of water and abrasive. Compared with a single mixing method, this design significantly improves mixing efficiency. At the same time, the rotating impeller 34 continuously agitates the abrasive, preventing it from settling during long-term operation. Furthermore, the closed-loop design of the collection pump 21 and the mixing tank 3 allows for the recycling and reuse of water, reducing water consumption.

[0026] Example 3

[0027] Based on Example 1, such as Figure 6As shown, the moving mechanism 4 includes a first lead screw 41 and a guide rod 42. The inner side walls of the housing 1 are provided with a left longitudinal groove 43 and a right longitudinal groove 44. The first lead screw 41 and the guide rod 42 are respectively located in the left longitudinal groove 43 and the right longitudinal groove 44. The first lead screw 41 passes through and is rotatably connected to the housing 1. The rear side of the housing 1 is bolted to a first drive motor 45. The first lead screw 41 is bolted to the output shaft of the first drive motor 45. The guide rod 42 is bolted to the housing 1. A sliding bracket 46 is provided between the first lead screw 41 and the guide rod 42. The left side of the sliding bracket 46 is threaded to the first lead screw 41, and the right side of the sliding bracket 46 is slidably connected to the guide rod 42. The sliding bracket 46 slides relative to both the left longitudinal groove 43 and the right longitudinal groove 44. A transverse structure 5 is provided on the sliding bracket 46.

[0028] The transverse structure 5 includes a second lead screw 51, which is rotatably connected to the sliding bracket 46. A second drive motor 52 is bolted to the top of the sliding bracket 46. A waterproof shell 53 is provided outside the second drive motor 52, which is bolted to the sliding bracket 46. The output end of the second drive motor 52 is connected to the second lead screw 51 via a belt 54. A sliding block 55 is threaded onto the second lead screw 51. The sliding block 55 slides relative to the sliding bracket 46. A height adjustment structure 6 is provided on the sliding block 55.

[0029] The height adjustment structure 6 includes an electric telescopic rod 61, which is bolted to the sliding block 55. The working end of the electric telescopic rod 61 is bolted to a connecting plate 62, and the waterjet cutting head 12 is bolted to the connecting plate 62.

[0030] The working principle and beneficial effects of the above technical solution are as follows: When longitudinal cutting of materials is required, the first drive motor 45 drives the first lead screw 41 to rotate. The rotation of the first lead screw 41 causes the sliding bracket 46 on the first lead screw 41 to move forward or backward along the thread. At the same time, the sliding bracket 46 slides along the guide rod 42, so that the sliding bracket 46 as a whole moves along the left longitudinal groove 43 and the right longitudinal groove 44. When transverse cutting of materials is required, the second drive motor 52 drives the second lead screw 51 to rotate through the belt 54. The rotation of the second lead screw 51 causes the sliding block 55 to move forward or backward along the thread in the sliding bracket 46. When it is necessary to reduce the height for close-range cutting of materials, the electric telescopic rod 61 extends, causing the connecting plate 62 to descend. The water jet cutting head 12 below the connecting plate 62 cuts the materials. This invention achieves precise positioning of the waterjet cutting head 12 in three-dimensional space through three-axis linkage control, meeting the cutting requirements of complex curved surfaces. The first lead screw 41 and the second lead screw 51 both adopt high-precision trapezoidal threads and have a self-locking function, which is safer than gear and rack transmission. At the same time, the first lead screw 41 and the guide rod 42 limit the offset in the horizontal plane, and the inner wall of the sliding bracket 46 constrains it in the lateral direction. The height adjustment is linearly driven by the electric telescopic rod 61. There is no "shaking" in the three-stage movement, and it can withstand a certain impact force, avoiding the skew of the cut due to the offset of the waterjet cutting head 12.

[0031] Example 4

[0032] Based on Example 2, such as Figure 6 , Figure 7 , Figure 8 As shown, the fixed collection mechanism 7 includes a grid plate 71, which is bolted to the housing 1. A collection chamber 72 is provided below the grid plate 71. A collection pipe 73 and a waste discharge pipe 76 are provided at the bottom of the collection chamber 72. The collection pipe 73 and the waste discharge pipe 76 are both connected through and fixed to the housing 1. The collection pipe 73 is connected to the input end of the collection pump 21. A filter box 8 is provided in the collection chamber 72. The filter box 8 is connected through and slidably connected to the housing 1. Two clamping plates 74 are symmetrically arranged above the grid plate 71. The two sets of clamping plates 74 slide relative to the grid plate 71. The two sets of clamping plates 74 are bolted to the working ends of two sets of electric telescopic cylinders 75. The two sets of electric telescopic cylinders 75 are respectively connected through and bolted to the left and right sides of the housing 1.

[0033] The filter box 8 has coarse filter screens 81 on both the top and bottom sides, a pull-out groove 82 in the center of the filter box 8, a middle filter box 83 is slidably connected in the pull-out groove 82, a middle filter plate 84 is hinged to the top of the middle filter box 83, a grid mesh 85 is provided at the bottom of the middle filter box 83, and fine filter paper 86 is laid on the grid mesh 85.

[0034] The working principle and beneficial effects of the above technical solution are as follows: The material to be processed is placed on the grid plate 71, the electric telescopic cylinder 75 is activated, and the two sets of clamping plates 74 slide towards the center, clamping the material through a rigid structure to ensure stability and no displacement during the processing. During the cutting process, the water, abrasive, and cutting material residue fall into the collection chamber 72 through the gaps in the grid plate 71. First, large particles of impurities are intercepted by the coarse filter screen 81 at the top and bottom of the filter box 8. The water, abrasive, and cutting material residue after preliminary filtration pass through the middle filter box 83 and the middle filter plate 84 to intercept abrasive and medium-sized material residue. Then, micron-sized material particles are further filtered through the fine filter paper 86, so that the water is discharged into the bottom of the collection chamber 72 and enters the collection pump 21 through the collection pipe 73. The abrasive in the filter box is recycled after the material is cut. When descaling the casing 1, the water in the collection chamber no longer enters the collection pump 21, but is discharged from the waste pipe 76. When the filtration effect decreases, the filter box 8 and the medium filter box 83 can be removed, the medium filter plate 84 can be opened and the fine filter paper 86 can be replaced; the coarse filter screen 81 can be directly rinsed and cleaned. This invention utilizes an electric telescopic cylinder 75 to drive the movement of a clamping plate 74, which can adaptively adjust the clamping force according to the material size, and the clamping force is uniform, avoiding deformation of the material due to excessive local force. The combination of coarse filter screen 81, medium filter plate 84, and fine filter paper 86 can reduce the content of solid impurities in cutting wastewater, meeting the purity requirements of circulating water. Furthermore, the medium filter box 83 is installed through a pull-out groove 82, so the entire filter box 8 does not need to be disassembled when replacing the fine filter paper 86.

[0035] Example 5

[0036] Based on Example 1, such as Figure 2 , Figure 9 As shown, the rotating structure 97 includes a collision card 971, which is fixedly connected to the top of the injection pipe 93. A rotating card 972 is provided between the collision card 971 and the injection pipe 93. The rotating card 972 is rotatably connected to the injection pipe 93. A guide groove 973 is provided on the rotating card 972, which corresponds to the drive nozzle 94. The rotating card 972 and the collision card 971 cooperate with each other. A rotating elastic element 974 is provided between the rotating card 972 and the collision card 971.

[0037] The dosing structure 10 includes a dosing holder 101, which is bolted to the front side of the housing 1. A negative pressure dosing bottle is provided on the dosing holder 101. A hollow dosing needle 102 is passed through and fixedly connected to the dosing holder 101. The hollow dosing needle 102 is connected to the negative pressure dosing bottle. A one-way valve is provided inside the hollow dosing needle 102. The bottom of the hollow dosing needle 102 is connected to a T-shaped connecting pipe 103. One end of the T-shaped connecting pipe 103 is connected to a pipe seat 91 through a pipe, and the other end of the T-shaped connecting pipe 103 is connected to the second output end of the collecting pump 21 through a pipe.

[0038] The working principle and beneficial effects of the above technical solution are as follows: The negative pressure reagent bottle (with an internal environment lower than atmospheric pressure) is connected to the hollow reagent needle 102. When the descaling operation is performed, the high-pressure water flow is output from the second output end of the collecting pump 21, passes through the T-shaped connecting pipe 103 and enters the pipe seat 91. At this time, the high-speed water flow reduces the pressure inside the hollow reagent needle 102 and opens the one-way valve, and the descaling agent in the reagent bottle is drawn into the hollow reagent needle 102 under the action of pressure difference. After the descaling agent and the high-pressure water flow are mixed, they enter the spray pipe 93 and are output from the drive nozzle 94 and the descaling nozzle 95 on the spray pipe 93. When the high-pressure water flow is output from the drive nozzle 94, it interacts with the guide groove 9 on the rotating card 972. 73. The collision of the high-pressure water flow generates a tangential recoil force on the rotating card 972, causing the rotating card 972 to rotate around the spray pipe 93. At the same time, the rotating card 972 squeezes the rotating elastic element 974 to generate elastic force. After the rotating card 972 rotates to a certain angle, it gradually stops under the action of the elastic force of the rotating elastic element 974. Under the action of the elastic force, the rotating elastic element 974 drives the rotating card 972 to reset. The rotating card 972 collides with the collision card 971, causing the collision card 971 to drive the spray pipe 93 to rotate a certain angle. The rotating card 972 then impacts the high-pressure water flow again. The above operation is repeated, so that the spray pipe 93 can achieve 360-degree rotation. When the descaling agent in the negative pressure agent bottle is consumed, it is removed and replaced with a new negative pressure agent bottle. This invention utilizes the impact force of high-pressure water flow on the rotating card 972, combined with the collision card 971 to achieve intermittent rotation of the spray pipe 93, which can ensure comprehensive removal of scale around the collection chamber 72. Furthermore, the use of high-pressure water flow for driving eliminates the need for an additional power source, reducing energy consumption. At the same time, the combination of negative pressure agent bottle and Venturi effect enables continuous and stable supply of agent, eliminating the need for complex metering pumps, thus reducing equipment costs and maintenance difficulty. The agent and water mix rapidly within the T-shaped connecting pipe 103, ensuring uniform distribution of the descaling agent.

[0039] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A cutting device for a waterjet cutting machine, characterized in that: It includes a housing (1) and a dosing structure (10). A control panel (11) is fixedly connected to the housing (1). A circulation mechanism (2) is provided outside the housing (1). A moving mechanism (4) is provided at the top inside the housing (1). A fixed collection mechanism (7) is provided at the bottom inside the housing (1). A height adjustment structure (6) is provided below the moving mechanism (4). A water cutting head (12) is provided at the working end of the height adjustment structure (6). A scale removal mechanism (9) is provided inside the fixed collection mechanism (7). The descaling mechanism (9) includes a pipe seat (91), which is connected to the bottom of the housing (1) through the pipe seat (91). A rotating connecting sleeve (92) is fixedly connected to the pipe seat (91). A spray pipe (93) is rotatably connected to the top of the rotating connecting sleeve (92). A drive nozzle (94) and a descaling nozzle (95) are alternately arranged on the spray pipe (93). A drain spray (96) is bolted to the descaling nozzle (95). A number of spray holes are provided on the drain spray (96). A rotating structure (97) is provided at the top of the spray pipe (93). The bottom of the pipe seat (91) is connected to the dosing structure (10). The circulation mechanism (2) includes a collection pump (21), which is located on the side of the casing (1). A mixing tank (3) is located on the rear side of the casing (1). The first output end of the collection pump (21) is connected to the left input end of the mixing tank (3) via a connecting pipe (22). A storage tank (23) is located above the mixing tank (3). The top input end of the mixing tank (3) is connected to the storage tank (23) via a feed pipe (24). A pressure pump is located on the right side of the mixing tank (3). (25) The right output end of the mixing tank (3) is connected to the booster pump (25) through the first water pipe (26). The output end of the booster pump (25) is connected to the second water pipe (27). The second water pipe (27) passes through and is fixed on the casing (1). The output end of the second water pipe (27) is connected to the water cutter head (12) through the telescopic pipe. The collecting pump (21), mixing tank (3), storage tank (23) and booster pump (25) are all bolted to the casing (1).

2. The cutting device for a waterjet cutting machine according to claim 1, characterized in that: A partition (31) is fixedly connected inside the mixing box (3). A venturi tube (32) is provided above the partition (31). The left input end of the mixing box (3) is connected to the left input end of the venturi tube (32). The top input end of the mixing box (3) is connected to the center input end of the venturi tube (32). The output end of the venturi tube (32) passes through and is fixedly connected to the partition (31). A rotating shaft (33) is provided below the partition (31). The rotating shaft (33) passes through and is rotatably connected to the mixing box (3). A rotating blade (34) is bolted to the rotating shaft (33). A stirring motor (35) is bolted to the outside of the mixing box (3). The rotating shaft (33) is fixedly connected to the output shaft of the stirring motor (35).

3. The cutting device for a waterjet cutting machine according to claim 1, characterized in that: The moving mechanism (4) includes a first lead screw (41) and a guide rod (42). A left longitudinal groove (43) and a right longitudinal groove (44) are provided on the inner side walls of the housing (1). The first lead screw (41) and the guide rod (42) are respectively located in the left longitudinal groove (43) and the right longitudinal groove (44). The first lead screw (41) passes through and is rotatably connected to the housing (1). A first drive motor (45) is bolted to the rear side of the housing (1). The first lead screw (41) and the first drive motor (45)... 45) The output shaft is bolted and the guide rod (42) is bolted to the housing (1). A sliding bracket (46) is provided between the first lead screw (41) and the guide rod (42). The left side of the sliding bracket (46) is threaded to the first lead screw (41), and the right side of the sliding bracket (46) is slidably connected to the guide rod (42). The sliding bracket (46) slides relative to the left longitudinal groove (43) and the right longitudinal groove (44). A transverse structure (5) is provided on the sliding bracket (46).

4. The cutting device for a waterjet cutting machine according to claim 3, characterized in that: The transverse structure (5) includes a second lead screw (51), which is rotatably connected to the sliding bracket (46). A second drive motor (52) is bolted to the top of the sliding bracket (46). A waterproof shell (53) is provided outside the second drive motor (52). The waterproof shell (53) is bolted to the sliding bracket (46). The output end of the second drive motor (52) is connected to the second lead screw (51) via a belt (54). A sliding block (55) is threaded onto the second lead screw (51). The sliding block (55) slides relative to the sliding bracket (46). A height adjustment structure (6) is provided on the sliding block (55).

5. A cutting device for a waterjet cutting machine according to claim 4, characterized in that: The height adjustment structure (6) includes an electric telescopic rod (61), which is bolted to a sliding block (55). The working end of the electric telescopic rod (61) is bolted to a connecting plate (62), and the waterjet cutting head (12) is bolted to the connecting plate (62).

6. The cutting device for a waterjet cutting machine according to claim 1, characterized in that: The fixed collection mechanism (7) includes a grid plate (71), which is bolted to the housing (1). A collection chamber (72) is provided below the grid plate (71). A collection pipe (73) and a waste discharge pipe (76) are provided at the bottom of the collection chamber (72). The collection pipe (73) and the waste discharge pipe (76) are both connected through and fixed to the housing (1). The collection pipe (73) is connected to the input end of the collection pump (21). A filter box (8) is provided in the collection chamber (72). The filter box (8) is connected through and slidably connected to the housing (1). Two clamping plates (74) are symmetrically provided above the grid plate (71). The two sets of clamping plates (74) slide relative to the grid plate (71). The two sets of clamping plates (74) are bolted to the working ends of two sets of electric telescopic cylinders (75). The two sets of electric telescopic cylinders (75) are connected through and bolted to the left and right sides of the housing (1).

7. A cutting device for a waterjet cutting machine according to claim 6, characterized in that: The filter box (8) is provided with coarse filter screens (81) on both the top and bottom sides. The filter box (8) is provided with a pull groove (82) in the center. The pull groove (82) is slidably connected to the middle filter box (83). The top of the middle filter box (83) is hinged to the middle filter plate (84). The bottom of the middle filter box (83) is provided with a grid screen (85). Fine filter paper (86) is laid on the grid screen (85).

8. The cutting device for a waterjet cutting machine according to claim 1, characterized in that: The rotating structure (97) includes a collision card (971), which is fixedly connected to the top of the injection pipe (93). A rotating card (972) is provided between the collision card (971) and the injection pipe (93). The rotating card (972) is rotatably connected to the injection pipe (93). A guide groove (973) is provided on the rotating card (972). The guide groove (973) corresponds to the drive nozzle (94). The rotating card (972) and the collision card (971) cooperate with each other. A rotating elastic element (974) is provided between the rotating card (972) and the collision card (971).

9. A cutting device for a waterjet cutting machine according to claim 1, characterized in that: The dosing structure (10) includes a dosing holder (101), which is bolted to the front side of the housing (1). A negative pressure dosing bottle is provided on the dosing holder (101). A hollow dosing needle (102) is connected through and fixed to the dosing holder (101). The hollow dosing needle (102) is connected to the negative pressure dosing bottle. A one-way valve is provided inside the hollow dosing needle (102). The bottom of the hollow dosing needle (102) is connected to a T-shaped connecting pipe (103). One end of the T-shaped connecting pipe (103) is connected to the pipe seat (91) through a pipe. The other end of the T-shaped connecting pipe (103) is connected to the second output end of the collecting pump (21) through a pipe.

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