Nozzle of sand blasting machine

Abstract

The utility model discloses a nozzle of a sand blasting machine, and relates to the technical field of sand blasting machines. The sand blasting machine nozzle comprises a nozzle composite shell and a heat exchange cylinder, the outer surface of the nozzle composite shell is fixedly connected with a spiral cooling pipe, the outer surface of the heat exchange cylinder is fixedly connected with a semiconductor chilling plate, the inner surface of the nozzle composite shell is fixedly connected with a fixing frame, and the outer surface of the fixing frame is rotationally connected with a rotating sleeve; the outer surface of the rotating sleeve is fixedly connected with a turbulent flow blade and a connecting rod, and one end, far away from the rotating sleeve, of the connecting rod is fixedly connected with a scraping plate. According to the utility model, the accumulation of abrasives in the nozzle is reduced, the sand blasting efficiency is improved, the abrasives attached to the inner wall of the nozzle composite shell can be scraped off in time, and the frequency of shutdown cleaning is reduced; and the temperature of the nozzle composite shell can be effectively reduced, and thermal expansion deformation of the nozzle caused by high-speed injection is prevented.

Description

Technical Field

[0001] This utility model relates to the field of sandblasting machine technology, specifically to a sandblasting machine nozzle. Background Technology

[0002] A sandblasting machine is a device that uses compressed air as power to propel abrasive materials at high speed onto the surface of a workpiece. Through impact and cutting action, it improves the surface quality of the workpiece. Its core principle is to use compressed air to form a high-speed jet stream, which propels abrasive materials (such as quartz sand, steel shot, etc.) onto the surface of the workpiece to achieve cleaning, roughening, and strengthening.

[0003] Existing sandblasting machines have a problem with nozzle temperature rising during use, which leads to decreased sandblasting efficiency and shortened nozzle life. At the same time, abrasive material tends to accumulate inside the nozzle, requiring frequent shutdowns for cleaning, which affects production efficiency. Utility Model Content

[0004] In view of the shortcomings of the prior art, the present invention provides a sandblasting machine nozzle to solve the existing problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sandblasting machine nozzle, comprising a nozzle composite shell and a heat exchange cylinder, wherein a spiral cooling pipe is fixedly connected to the outer surface of the nozzle composite shell, a semiconductor cooling chip is fixedly connected to the outer surface of the heat exchange cylinder, a fixing frame is fixedly connected to the inner surface of the nozzle composite shell, a rotating sleeve is rotatably connected to the outer surface of the fixing frame, a baffle blade and a connecting rod are fixedly connected to the outer surface of the rotating sleeve, and a scraper is fixedly connected to the end of the connecting rod away from the rotating sleeve.

[0006] Preferably, the nozzle composite housing includes an impact-resistant layer and an anti-wear layer, wherein the impact-resistant layer is disposed on the outer surface of the anti-wear layer.

[0007] Preferably, a miniature water pump is provided at the end of the heat exchange cylinder, and a water pumping pipe is fixedly connected to the outer surface of the miniature water pump. The outer surface of the water pumping pipe penetrates the heat exchange cylinder and extends into the inner cavity.

[0008] Preferably, the end of the spiral cooling tube is connected to a micro water pump, and the end of the spiral cooling tube away from the micro water pump passes through the heat exchange cylinder and extends into the inner cavity.

[0009] Preferably, the nozzle composite housing is provided with an inlet and an outlet at both ends, the turbulence blade is provided at the end of the rotating sleeve near the inlet, and the connecting rod is provided on the side of the turbulence blade near the outlet.

[0010] Preferably, the turbulence blades are arranged in a ring around the rotating sleeve, and the outer surface of the scraper is in contact with the inner wall of the nozzle composite housing.

[0011] Beneficial effects

[0012] This utility model provides a sandblasting machine nozzle. It has the following beneficial effects:

[0013] (1) The nozzle of the sandblasting machine, through the design of the turbulence blades and scraper, effectively disturbs and scrapes the abrasive, reduces the accumulation of abrasive in the nozzle, thereby improving the sandblasting efficiency. In addition, the rotation of the scraper can scrape off the abrasive adhering to the inner wall of the nozzle composite shell in time, reducing the frequency of downtime for cleaning and improving production efficiency.

[0014] (2) The nozzle of the sandblasting machine, through the design of spiral cooling pipe and heat exchange cylinder, combined with the cooling effect of micro water pump and semiconductor cooling chip, effectively reduces the temperature of the nozzle composite shell, prevents the nozzle from thermal expansion and deformation caused by high-speed spraying, ensures the dimensional stability of the nozzle under high temperature environment, and avoids cracking due to thermal stress. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the nozzle composite housing of this utility model.

[0018] In the diagram: 1. Nozzle composite shell; 101. Impact-resistant layer; 102. Wear-resistant layer; 2. Heat exchange cylinder; 3. Spiral cooling tube; 4. Semiconductor cooling chip; 5. Micro water pump; 6. Pumping pipe; 7. Fixing frame; 8. Rotating sleeve; 9. Baffle blade; 10. Connecting rod; 11. Scraper; 12. Inlet; 13. Outlet. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1:

[0021] like Figure 1-3As shown, this utility model provides a sandblasting machine nozzle, including a nozzle composite shell 1 and a heat exchange cylinder 2. A spiral cooling pipe 3 is fixedly connected to the outer surface of the nozzle composite shell 1, a semiconductor cooling chip 4 is fixedly connected to the outer surface of the heat exchange cylinder 2, a fixing frame 7 is fixedly connected to the inner surface of the nozzle composite shell 1, a rotating sleeve 8 is rotatably connected to the outer surface of the fixing frame 7, a baffle blade 9 and a connecting rod 10 are fixedly connected to the outer surface of the rotating sleeve 8, and a scraper 11 is fixedly connected to the end of the connecting rod 10 away from the rotating sleeve 8.

[0022] Specifically, the nozzle composite housing 1 includes an impact-resistant layer 101 and an anti-wear layer 102, with the impact-resistant layer 101 disposed on the outer surface of the anti-wear layer 102.

[0023] Specifically, a miniature water pump 5 is provided at the end of the heat exchange cylinder 2, and a water pumping pipe 6 is fixedly connected to the outer surface of the miniature water pump 5. The outer surface of the water pumping pipe 6 penetrates the heat exchange cylinder 2 and extends into the inner cavity.

[0024] Specifically, the end of the spiral cooling tube 3 is connected to the micro water pump 5, and the end of the spiral cooling tube 3 away from the micro water pump 5 passes through the heat exchange cylinder 2 and extends into the inner cavity.

[0025] Specifically, the nozzle composite housing 1 has an inlet 12 and an outlet 13 at its two ends, respectively. The turbulence blade 9 is located at the end of the rotating sleeve 8 near the inlet 12, and the connecting rod 10 is located on the side of the turbulence blade 9 near the outlet 13.

[0026] Specifically, the turbulence blades 9 are arranged in a ring around the rotating sleeve 8, and the outer surface of the scraper 11 is in contact with the inner wall of the nozzle composite housing 1.

[0027] The working principle and beneficial effects of the above embodiments.

[0028] During operation, a high-speed airflow carries abrasive material into the nozzle composite housing 1. The high-speed abrasive impacts the baffle blades 9, causing them to rotate. The rotating sleeve 8 then rotates on the surface of the fixed frame 7, driving the connecting rod 10 to rotate. This causes the scraper 11 to rotate along the inner wall of the nozzle composite housing 1. The rotating scraper 11 scrapes off the abrasive material adhering to the inner wall of the nozzle composite housing 1, preventing abrasive accumulation inside the nozzle and ensuring continuous and efficient sandblasting. This reduces the frequency of downtime for cleaning. During extended operation, the micro water pump 5 delivers cold water from the heat exchange cylinder 2 to the spiral shaft via the water pipe 6. Inside the cooling pipe 3, the cold water entering the spiral cooling pipe 3 absorbs the heat from the nozzle composite shell 1, reducing the temperature of the nozzle composite shell 1. The water that has absorbed heat returns to the heat exchange cylinder 2 along the spiral cooling pipe 3. The semiconductor cooling chip 4 cools the water in the heat exchange cylinder 2, and then the micro water pump 5 draws out the cold water to form a circulating water path, which facilitates continuous cooling of the nozzle composite shell 1. The inner layer of the nozzle composite shell 1 is made of a material with good wear resistance, and the outer layer is made of a material with good impact resistance, so as to achieve wear resistance in the inner layer and impact resistance in the outer layer, which helps to extend the service life of the nozzle and reduce the decrease in spray accuracy caused by wear.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sand-blasting machine nozzle comprising a nozzle composite housing (1) and a heat exchange cylinder (2), characterized in that: The outer surface of the nozzle composite shell (1) is fixedly connected with a spiral cooling pipe (3), the outer surface of the heat exchange cylinder (2) is fixedly connected with a semiconductor refrigeration sheet (4), the inner surface of the nozzle composite shell (1) is fixedly connected with a fixing frame (7), the outer surface of the fixing frame (7) is rotatably connected with a rotating sleeve (8), the outer surface of the rotating sleeve (8) is fixedly connected with a spoiler blade (9) and a connecting rod (10), and the end, away from the rotating sleeve (8), of the connecting rod (10) is fixedly connected with a scraper (11).

2. A blasting machine nozzle according to claim 1, wherein: The nozzle composite shell (1) comprises an impact-resistant layer (101) and an anti-wear layer (102), and the impact-resistant layer (101) is arranged on the outer surface of the anti-wear layer (102).

3. A blasting machine nozzle according to claim 1, wherein: The end of the heat exchange cylinder (2) is provided with a micro water pump (5), the outer surface of the micro water pump (5) is fixedly connected with a water suction pipe (6), and the outer surface of the water suction pipe (6) penetrates through the heat exchange cylinder (2) and extends to the inner cavity.

4. A blasting machine nozzle according to claim 3, wherein: The end of the spiral cooling pipe (3) is connected with the micro water pump (5), and the end, away from the micro water pump (5), of the spiral cooling pipe (3) penetrates through the heat exchange cylinder (2) and extends to the inner cavity.

5. A blasting machine nozzle according to claim 1, wherein: The two ends of the nozzle composite shell (1) are respectively provided with an inlet (12) and an outlet (13), the spoiler blade (9) is arranged at the end, close to the inlet (12), of the rotating sleeve (8), and the connecting rod (10) is arranged on the side, close to the outlet (13), of the spoiler blade (9).

6. A blasting machine nozzle according to claim 1, wherein: The spoiler blade (9) is arranged in an annular array with the rotating sleeve (8) as the shaft, and the outer surface of the scraper (11) is in contact with the inner wall of the nozzle composite shell (1). The outer surface of the nozzle composite shell (1) is fixedly connected with a spiral cooling pipe (3), the outer surface of the heat exchange cylinder (2) is fixedly connected with a semiconductor refrigeration sheet (4), the inner surface of the nozzle composite shell (1) is fixedly connected with a fixing frame (7), the outer surface of the fixing frame (7) is rotatably connected with a rotating sleeve (8), the outer surface of the rotating sleeve (8) is fixedly connected with a spoiler blade (9) and a connecting rod (10), and the end, away from the rotating sleeve (8), of the connecting rod (10) is fixedly connected with a scraper (11).

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