A double-station sand blasting machine for new energy vehicle die-casting mold with cyclone sand separation

Abstract

The application relates to the technical field of sand blasting machines and discloses a double-station cyclone sand separation type new energy vehicle die-casting die sand blasting machine which comprises a sand blasting machine body, a spray gun arranged in the sand blasting machine body, a gas pipe and a material tank connected to the spray gun, a connecting assembly arranged on the spray gun, an installation pipe arranged in the connecting assembly, the installation pipe being connected with the spray gun, a spraying assembly arranged at the end of the installation pipe away from the spray gun, an installation plate and two nozzles arranged in the spraying assembly, the two nozzles being fixed on the installation plate, the two nozzles being different in caliber, a positioning assembly arranged on the spray gun, and the installation plate being connected with the positioning assembly. The two nozzles which are different in caliber are arranged, the large nozzle can quickly cover a large die wide plane by virtue of a wide sand outlet channel and a strong and uniform sand flow, large-area sand blasting work can be efficiently completed, and the sand blasting effect is uniform and consistent.

Description

Technical Field

[0001] This invention relates to the field of sandblasting machine technology, and in particular to a dual-station cyclone sand-distributing sandblasting machine for new energy vehicle die-casting molds. Background Technology

[0002] The dual-station cyclone sand-separating sandblasting machine for new energy vehicle die-casting molds is a highly efficient and automated surface treatment equipment designed specifically for new energy vehicle die-casting molds. It achieves abrasive recycling through dual-station collaborative operation and cyclone separation technology, thereby improving sandblasting efficiency and mold surface quality.

[0003] A search revealed that Chinese patent CN220279353U discloses a surface sandblasting machine, comprising a sandblasting machine body, a base plate, a worktable, and a fixing frame. Support legs are welded to the lower surface of the sandblasting machine body, and a fixing pipe is fixed to the inner wall of the machine body. A nozzle is connected to one outer end face of the fixing pipe. A housing is installed on one outer end face of the sandblasting machine body, and a discharge pipe is connected to the upper surface of the housing. The discharge pipe passes through the sandblasting machine body and connects to the fixing pipe. A guide plate is welded to the inner bottom of the sandblasting machine body, and an outer rod is fixed to the inner bottom of the sandblasting machine body, penetrating the guide plate. An inner rod is movably inserted into the upper surface of the outer rod. A rotating plate is rotatably connected to the upper surface of the worktable, and a limit rod is welded to the upper surface of the rotating plate. A storage rack is fixed to the upper surface of the base plate, and fixing bolts are threaded onto the front surface of the fixing frame. This solution can sandblast parts of different sizes. However, in practical use, the above solution still has the following shortcomings:

[0004] In the above solution, the sandblasting range of the sandblasting machine is fixed and cannot be adjusted according to the actual situation of the workpiece. First, the processing quality is difficult to guarantee. Due to the significant differences in shape, size and material of different workpieces, sandblasting within a fixed range may result in insufficient treatment of complex curved surfaces or edge areas, leading to oxide scale residue or uneven surface roughness. On the other hand, flat areas may become excessively rough due to repeated sandblasting, even damaging the substrate. In particular, precision parts or thin-walled workpieces are prone to deformation or cracking because critical areas cannot be avoided. Second, production efficiency is greatly reduced. When faced with multi-variety, small-batch orders, operators need to frequently stop the machine to change the position of the spray gun, adjust the protective device or manually shield non-processing areas, resulting in excessive auxiliary time. Moreover, the processed workpieces often need to be reworked due to local defects, further extending the production cycle. Third, there is serious waste of materials and energy. Fixed-range sandblasting cannot accurately control the abrasive coverage area, resulting in a large amount of abrasive being sprayed into ineffective areas, which increases abrasive consumption costs and accelerates equipment wear due to over-sandblasting.

[0005] Therefore, it is necessary to design a dual-station cyclone sand-splitting sand-blasting machine for new energy vehicle die-casting molds to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a dual-station cyclone sand-splitting sand-blasting machine for new energy vehicle die-casting molds.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A dual-station cyclone sand-distributing sand-blasting machine for new energy vehicle die-casting molds includes a sandblasting machine body. A spray gun is installed inside the sandblasting machine body. An air pipe and a material tank are connected to the spray gun. A connecting assembly is installed on the spray gun. The connecting assembly includes an installation pipe connected to the spray gun. A spraying component is installed at the end of the installation pipe furthest from the spray gun. The spraying component includes an installation plate and two nozzles. Both nozzles are fixed to the installation plate, and the two nozzles have different diameters. A positioning component is installed on the spray gun, and the installation plate is connected to the positioning component.

[0009] The mounting tube is equipped with a locking component.

[0010] As a preferred embodiment of the present invention, the connecting assembly further includes two openings and two fixing brackets. The two openings are both opened on the mounting tube and are arranged facing each other. Each of the two openings is provided with a movable locking block. Each locking block is provided with two inclined surfaces. The two fixing brackets are both fixed on the mounting tube and are respectively arranged facing the two openings. Each fixing bracket is provided with a hole. A rod is slidably arranged in each of the two holes. The two rods are respectively fixedly connected to the two locking blocks. The two locking blocks and the two fixing brackets are respectively connected by two first springs.

[0011] As a preferred embodiment of the present invention, the locking assembly includes a first sliding ring and a first fixed ring. The first sliding ring is slidably sleeved on the mounting tube, and the first fixed ring is fixedly sleeved on the mounting tube. The first sliding ring and the first fixed ring are connected by a second spring, and the inner ring of the first sliding ring is in contact with the outer surface of the mounting tube.

[0012] As a preferred embodiment of the present invention, the spraying assembly further includes two connecting pipes, which are respectively connected to two nozzles, and each connecting pipe has two opposing slots.

[0013] As a preferred embodiment of the present invention, the size of the connecting tube is adapted to the size of the mounting tube, and when the connecting tube is inserted into the mounting tube, the outer circumferential surface of the connecting tube is in contact with the inner surface of the mounting tube.

[0014] As a preferred embodiment of the present invention, the positioning component includes a fixed rod and a connecting rod. The fixed rod is fixed to the spray gun, and a groove is formed at the end of the fixed rod. The connecting rod slides in the groove, and one end of the connecting rod extends to the outside of the groove and is fixedly connected to the mounting plate. An annular groove and two sliding grooves are formed on the groove wall of the groove, and the two sliding grooves are connected to the annular groove. Two protrusions are fixed on the connecting rod, and the two protrusions slide in the two sliding grooves respectively.

[0015] As a preferred embodiment of the present invention, the two nozzles are arranged in a circumferential array around the connecting rod.

[0016] As a preferred embodiment of the present invention, the inner wall of the mounting tube is provided with an annular sealing groove, a sealing ring is fixed in the sealing groove, and the sealing ring is hollow inside. An inflation component is provided on the first sliding ring, and the inflation component is used to inflate the sealing ring with air.

[0017] As a preferred embodiment of the present invention, the inflation assembly includes a second fixed ring, a third fixed ring, and a second sliding ring. The second fixed ring and the third fixed ring are respectively fixed to the two ends of the first sliding ring. The second sliding ring is slidably sleeved on the first sliding ring and is located between the second fixed ring and the third fixed ring. The second sliding ring and the second fixed ring are connected by a third spring. An annular airbag is provided between the second sliding ring and the third fixed ring. The annular airbag and the sealing ring are connected by a connecting pipe.

[0018] As a preferred embodiment of the present invention, a dust collection device is provided on one side of the sandblasting machine body, and a dust collection pipe is connected to the dust collection device. The end of the dust collection pipe away from the dust collection device extends into the interior of the sandblasting machine body for dust collection, and the position of the nozzle of the dust collection pipe is adapted to the connecting pipe.

[0019] The present invention has the following beneficial effects:

[0020] 1. By setting two nozzles of different diameters, one large and one small, the large nozzle, with its wide sand outlet channel and strong and uniform sand flow, can quickly cover the wide plane of a large mold, efficiently complete large-area sandblasting operations, ensure uniform sandblasting effect, and give the mold surface ideal roughness and texture. The small nozzle has the characteristic of precise focused sand output, which can penetrate into small areas of the mold, such as gaps, corners and irregular shapes, for fine sandblasting treatment, leaving no dead corners, improving the overall processing quality and precision of the mold, and also avoiding damage to the substrate due to excessive roughness caused by repeated sandblasting on flat areas, thus achieving efficient and high-quality sandblasting operations.

[0021] 2. The two nozzles have a quick replacement method. The operator pulls the second sliding ring, which in turn moves the second fixed ring and the first sliding ring to release the constraint on the locking block. Then, the operator pulls the mounting plate to pull the connecting tube out of the mounting tube. After rotating the mounting plate 180° to switch the nozzle positions, the operator pushes the mounting plate to insert the connecting tube into the mounting tube. The locking block then engages with the slot. Finally, the operator releases the second sliding ring to complete the reset and fixation. The whole process is simple to operate, without complicated tools or long operation time. It allows the operator to flexibly select and replace nozzles according to the needs in actual work, thereby improving work efficiency.

[0022] 3. When the second sliding ring resets, it will compress the annular airbag, causing the gas inside the annular airbag to re-enter the sealing ring through the connecting pipe. This will inflate the sealing ring and press it against the connecting pipe, thus ensuring the sealing performance between the installation pipe and the connecting pipe. This design achieves the quick-release function of the nozzle while ensuring that the overall sealing performance of the spray gun is not affected, ensuring a stable output of sand during sandblasting operations, and improving the reliability and stability of the operation. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the spray gun, connecting assembly, and spraying assembly proposed in this invention. Figure 1 ;

[0024] Figure 2 This invention presents a schematic diagram of the structure of a dual-station cyclone sand-separating type sandblasting machine for new energy vehicle die-casting molds. Figure 1 ;

[0025] Figure 3 A schematic diagram of the structure of a dual-station cyclone sand-separating type sandblasting machine for die-casting molds of new energy vehicles. Figure 2 ;

[0026] Figure 4 Schematic diagram of the spray gun, connecting assembly, and spraying assembly. Figure 2 ;

[0027] Figure 5 This is a schematic diagram showing the structure when the positions of the two nozzles are swapped.

[0028] Figure 6 For the appendix Figure 5 Schematic diagram of the cross-sectional structure in the middle;

[0029] Figure 7 This is a schematic diagram of the spray assembly.

[0030] Figure 8 This is a structural diagram of the connecting components;

[0031] Figure 9 This is a cross-sectional view of the connecting components.

[0032] Figure 10 This is a schematic diagram of the positioning component.

[0033] In the diagram: 1. Sandblasting machine body; 11. Dust collection equipment; 111. Dust collection pipe; 2. Spray gun; 21. Air pipe; 22. Material pipe; 31. Mounting pipe; 32. Opening; 33. Locking block; 34. Fixing frame; 35. Rod; 36. First spring; 41. First sliding ring; 42. First fixing ring; 43. Second spring; 51. Second fixing ring; 52. Third fixing ring; 53. Second sliding ring; 54. Third spring; 55. Annular airbag; 56. Sealing groove; 57. Sealing ring; 58. Connecting pipe; 61. Mounting plate; 62. Nozzle; 63. Connecting pipe; 64. Locking groove; 71. Fixing rod; 72. Annular groove; 73. Slide groove; 74. Connecting rod; 75. Protrusion. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0035] Reference Figure 1-10 A dual-station cyclone sand-separating new energy vehicle die-casting mold sandblasting machine includes a sandblasting machine body 1, a spray gun 2 is installed inside the sandblasting machine body 1, and an air pipe 21 and a material tank are connected to the spray gun 2. The air pipe 21 is used to supply air, and the material pipe 22 is used to supply sandblasting abrasive.

[0036] The spray gun 2 is equipped with a connecting assembly, which includes an installation tube 31 connected to the spray gun 2. The connecting assembly also includes two openings 32 and two fixing brackets 34. The two openings 32 are both opened on the installation tube 31 and are directly opposite each other. Each of the two openings 32 is provided with a movable locking block 33. Each locking block 33 is provided with two inclined surfaces. The two fixing brackets 34 are fixed on the installation tube 31 and are respectively directly opposite the two openings 32. Each fixing bracket 34 is provided with a hole. A rod 35 is slidably installed in each of the two holes. The two rods 35 are respectively fixedly connected to the two locking blocks 33. The two locking blocks 33 and the two fixing brackets 34 are respectively connected by two first springs 36.

[0037] A spraying assembly is provided at the end of the mounting tube 31 away from the spray gun 2. The spraying assembly includes a mounting plate 61 and two nozzles 62. The two nozzles 62 are fixed on the mounting plate 61. The two nozzles 62 have different diameters. The spraying assembly also includes two connecting tubes 63. The two connecting tubes 63 are connected to the two nozzles 62 respectively. Each connecting tube 63 has two oppositely arranged slots 64. The size of the connecting tube 63 is adapted to the size of the mounting tube 31. When the connecting tube 63 is inserted into the mounting tube 31, the outer circumferential surface of the connecting tube 63 fits against the inner surface of the mounting tube 31.

[0038] A locking assembly is provided on the mounting tube 31. The locking assembly includes a first sliding ring 41 and a first fixed ring 42. The first sliding ring 41 is slidably sleeved on the mounting tube 31, and the first fixed ring 42 is fixedly sleeved on the mounting tube 31. The first sliding ring 41 and the first fixed ring 42 are connected by a second spring 43. The inner ring of the first sliding ring 41 is in contact with the outer surface of the mounting tube 31.

[0039] The sandblasting machine body 1 proposed in this invention has two workstations, allowing two workers to simultaneously sandblast the die-casting molds for new energy vehicles. This is existing technology and will not be elaborated upon here. The sandblasting machine body 1 has two nozzles 62 with different diameters, enabling sandblasting operations with different coverage areas, such as... Figure 7 As shown, the two nozzles 62 are of different sizes. The larger nozzle 62 has a wide sand outlet channel, which can output a strong and uniform sand flow to achieve efficient sandblasting of large flat surfaces on the mold. When dealing with the wide flat surfaces of large molds, the large nozzle 62 can quickly cover the entire surface, shortening the processing time and improving work efficiency, while ensuring the uniformity of the sandblasting effect, so that the mold surface can obtain the ideal roughness and texture. The smaller nozzle 62 has the characteristic of precise focusing of sand output, which can produce a more concentrated and fine sand flow. This allows it to perform fine sandblasting when dealing with small gaps, corners and irregular positions on the mold. The small nozzle 62 can penetrate into narrow gaps or conform to the complex contours of irregular surfaces, ensuring that every small part is fully sandblasted and polished, without missing any dead corners, thereby improving the overall processing quality and precision of the mold and avoiding damage to the substrate caused by excessive roughness due to repeated sandblasting on flat areas.

[0040] The spray gun 2 is equipped with a positioning component. The mounting plate 61 is connected to the positioning component. The positioning component includes a fixing rod 71 and a connecting rod 74. The fixing rod 71 is fixed on the spray gun 2. A groove is opened at the end of the fixing rod 71. The connecting rod 74 slides in the groove. One end of the connecting rod 74 extends to the outside of the groove and is fixedly connected to the mounting plate 61. An annular groove 72 and two sliding grooves 73 are opened on the groove wall. The two sliding grooves 73 are connected to the annular groove 72. Two protrusions 75 are fixed on the connecting rod 74. The two protrusions 75 slide in the two sliding grooves 73 respectively. The two nozzles 62 are arranged in a circumferential array around the connecting rod 74.

[0041] The two nozzles 62 have a quick-change mechanism, allowing operators to flexibly select the required nozzle 62 during actual operation. Specifically, for example... Figures 8 to 10 As shown, when nozzle 62 needs to be replaced, the operator first pulls the second sliding ring 53, causing it to move closer to the second fixed ring 51. During this process, the second sliding ring 53 stretches the annular airbag 55, causing it to draw out the air from the sealing ring 57 through the connecting pipe 63. When the air is drawn out, the sealing ring 57 contracts. At this time, the sealing ring 57 no longer presses against the connecting pipe 63 located inside the mounting pipe 31, making it easier for the connecting pipe 63 to move out of the mounting pipe 31. This also prevents wear between the connecting pipe 63 and the sealing ring 57. Furthermore, when the second sliding ring 53 moves to its limit position, it can push the first sliding ring 41 through the second fixed ring 51, causing it to move closer to the first fixed ring 42. When the first sliding ring 41 is completely separated from the two openings 32, it no longer restrains the two locking blocks 33. At this time, the two locking blocks 33 can move closer to each other or further away from each other.

[0042] After adjusting the position of the first sliding ring 41, the operator pulls the mounting plate 61, causing it to move the two nozzles 62 away from the mounting tube 31. At this time, the connecting tube 63 inside the mounting tube 31 presses against the inclined surfaces of the two locking blocks 33. The two locking blocks 33 move away from each other when pressed, allowing the connecting tube 63 to move smoothly out of the mounting tube 31. Simultaneously, the movement of the mounting plate 61 also moves the connecting tube 63, causing the two protrusions 75 on the connecting tube 63 to move accordingly. This allows the two protrusions 75 to slide in the two sliding grooves 73 respectively. When both protrusions 75 have slid into the annular groove 72, the connecting tube 63 has completely moved out of the mounting tube 31. At this point, the operator rotates the mounting plate 61, causing it to rotate with the connecting rod 74. During the rotation of the connecting rod 74, the two protrusions 75 will move in the annular groove 72. The nozzles 62 slide within the groove 72. When the mounting plate 61 rotates 180°, the positions of the two nozzles 62 are reversed. At this time, the two protrusions 75 also move to positions directly opposite the two sliding grooves 73. Further, the operator pushes the mounting plate 61 so that the connecting pipe 63 facing the mounting tube 31 is inserted into the mounting tube 31. When the connecting pipe 63 is inserted into the position, the two slots 64 on the connecting pipe 63 are directly opposite the two locking blocks 33. At this time, the two locking blocks 33 can be locked into the two slots 64 respectively. Finally, the operator releases the second sliding ring 53 so that the second sliding ring 53 and the first sliding ring 41 automatically reset. When the first sliding ring 41 is reset into position, the first sliding ring 41 will cover the two locking blocks 33, providing constraint on the two locking blocks 33. When the positions of the two locking blocks 33 are fixed, the two locking blocks 33 can jointly fix the connecting pipe 63, and the positions of the two nozzles 62 are fixed accordingly.

[0043] The inner wall of the mounting tube 31 is provided with an annular sealing groove 56. A sealing ring 57 is fixed in the sealing groove 56 and the sealing ring 57 is hollow inside. An inflation component is provided on the first sliding ring 41. The inflation component is used to inflate the sealing ring 57. The inflation component includes a second fixed ring 51, a third fixed ring 52 and a second sliding ring 53. The second fixed ring 51 and the third fixed ring 52 are respectively fixed at both ends of the first sliding ring 41. The second sliding ring 53 is slidably sleeved on the first sliding ring 41 and is located between the second fixed ring 51 and the third fixed ring 52. The second sliding ring 53 and the second fixed ring 51 are connected by a third spring 54. An annular airbag 55 is provided between the second sliding ring 53 and the third fixed ring 52. The annular airbag 55 is connected to the sealing ring 57 by a connecting tube 63.

[0044] In addition, when the second sliding ring 53 is reset, the second sliding ring 53 will squeeze the annular airbag 55, so that the gas in the annular airbag 55 will re-enter the sealing ring 57 through the connecting pipe 58, thereby causing the sealing ring 57 to inflate. When the sealing ring 57 expands, the sealing ring 57 will press the connecting pipe 63, thereby ensuring the sealing performance between the mounting pipe 31 and the connecting pipe 63. Through this design, the two nozzles 62 can have a quick-release function, while also ensuring the overall sealing performance of the spray gun 2.

[0045] A dust collection device 11 is installed on one side of the sandblasting machine body 1. A dust collection pipe 111 is connected to the dust collection device 11. The end of the dust collection pipe 111 away from the dust collection device 11 extends into the interior of the sandblasting machine body 1 for dust collection. The position of the pipe opening of the dust collection pipe 111 is adapted to the connecting pipe 63, such as... Figure 1 As shown, a dust collection device 11 is provided on one side of the sandblasting machine body 1. The dust collection device 11 is used to extract the dust generated during the sandblasting process. When the spray gun 2 uses one of the nozzles 62 for sandblasting, the operator can insert the dust collection pipe 111 into another idle nozzle 62 and use the nozzle 62 to perform the dust collection action. This design replaces the traditional fixed dust collection port. The dust collection position can move with the sandblasting action. This design breaks the limitations of the traditional fixed dust collection port, so that the dust collection position can move flexibly and closely follow the sandblasting action. It can efficiently and timely extract the dust generated by sandblasting, avoid dust diffusion and pollution of the environment and harm to the health of the operators, and ensure that the dust collection operation is accurately focused on the sandblasting area.

[0046] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A dual-station cyclone sand-distributing type sandblasting machine for new energy vehicle die-casting molds, comprising a sandblasting machine body, characterized in that, The sandblasting machine body is equipped with a spray gun inside. The spray gun is connected to an air pipe and a material tank. The spray gun is equipped with a connecting assembly, which includes an installation pipe connected to the spray gun. A spraying assembly is provided at the end of the installation pipe away from the spray gun. The spraying assembly includes an installation plate and two nozzles. The two nozzles are fixed on the installation plate and have different diameters. The spray gun is equipped with a positioning assembly, and the installation plate is connected to the positioning assembly. The mounting tube is equipped with a locking component; The connecting assembly also includes two openings and two fixing brackets. The two openings are both opened on the mounting tube and are directly opposite each other. Each opening has a movable locking block, and each locking block has two inclined surfaces. The two fixing brackets are fixed on the mounting tube and are respectively directly opposite the two openings. Each fixing bracket has a hole, and a rod is slidably installed in each of the two holes. The two rods are respectively fixedly connected to the two locking blocks. The two locking blocks and the two fixing brackets are respectively connected by two first springs. The locking assembly includes a first sliding ring and a first fixed ring. The first sliding ring is slidably sleeved on the mounting tube, and the first fixed ring is fixedly sleeved on the mounting tube. The first sliding ring and the first fixed ring are connected by a second spring. The inner ring of the first sliding ring is in contact with the outer surface of the mounting tube. The inner wall of the installation tube is provided with an annular sealing groove, and a sealing ring is fixed in the sealing groove. The sealing ring is hollow inside. An inflation component is provided on the first sliding ring. The inflation component is used to inflate the sealing ring. The inflation assembly includes a second fixed ring, a third fixed ring, and a second sliding ring. The second fixed ring and the third fixed ring are respectively fixed to the two ends of the first sliding ring. The second sliding ring is slidably sleeved on the first sliding ring and is located between the second fixed ring and the third fixed ring. The second sliding ring and the second fixed ring are connected by a third spring. An annular airbag is provided between the second sliding ring and the third fixed ring. The annular airbag and the sealing ring are connected by a connecting tube.

2. The dual-station cyclone sand-splitting type new energy vehicle die-casting mold sandblasting machine according to claim 1, characterized in that, The spraying assembly also includes two connecting pipes, which are respectively connected to two nozzles, and each connecting pipe has two opposing slots.

3. The dual-station cyclone sand-separating type new energy vehicle die-casting mold sandblasting machine according to claim 2, characterized in that, The size of the connecting tube is adapted to the size of the mounting tube, and when the connecting tube is inserted into the mounting tube, the outer circumferential surface of the connecting tube fits against the inner surface of the mounting tube.

4. The dual-station cyclone sand-separating type new energy vehicle die-casting mold sandblasting machine according to claim 3, characterized in that, The positioning assembly includes a fixed rod and a connecting rod. The fixed rod is fixed to the spray gun, and a groove is formed at the end of the fixed rod. The connecting rod slides in the groove, and one end of the connecting rod extends to the outside of the groove and is fixedly connected to the mounting plate. An annular groove and two sliding grooves are formed on the groove wall of the groove. Both sliding grooves are connected to the annular groove. Two protrusions are fixed on the connecting rod, and the two protrusions slide in the two sliding grooves respectively.

5. A dual-station cyclone sand-splitting type new energy vehicle die-casting mold sandblasting machine according to claim 4, characterized in that, The two nozzles are arranged in a circumferential array around the connecting rod.

6. A dual-station cyclone sand-splitting type sandblasting machine for new energy vehicle die-casting molds according to claim 1, characterized in that, A dust collection device is provided on one side of the sandblasting machine body. A dust collection pipe is connected to the dust collection device. The end of the dust collection pipe away from the dust collection device extends into the interior of the sandblasting machine body for dust collection. The position of the nozzle of the dust collection pipe is adapted to the connecting pipe.

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