A sandblasting gun head

Abstract

The utility model relates to a sand blasting gun head belongs to the technical field of spraying equipment, including sand blasting gun head body, the sand blasting gun head body is seted up in the mixing chamber, sand blasting gun head body installs the communicating pipe for the outside conveying sand's intercommunication, the sand blasting gun head body one side installs the gas connection pipe for the outside high pressure gas's intercommunication, the gas connection pipe one end and located the mixing chamber installs the nozzle, the communicating pipe intercommunication mixing chamber, sand blasting gun head body is installed with the mixed diffuser ware away from the nozzle one end, the utility model discloses a sand blasting gun head, through communicating pipe and gas connection pipe, convey sand and high pressure gas respectively, after mixing in the mixing chamber, then spray through mixed diffuser ware, guarantee the consistency and uniformity of sand blasting effect, and can drive sand blasting gun head swing through the movable device, the range of workpiece sand blasting is bigger.

Description

Technical Field

[0001] This utility model relates to the field of spraying equipment technology, specifically to a sandblasting gun head. Background Technology

[0002] In production practice, sandblasting guns are often used to polish the surface of workpieces, achieving a certain level of cleanliness, improving the mechanical properties of the workpiece surface, and enhancing its fatigue resistance. Sandblasting also gives the workpiece surface a certain roughness, increasing the adhesion between the workpiece surface and the coating, extending the durability of the coating film, and also facilitating paint leveling and decoration. Furthermore, sandblasting removes impurities, discoloration, and oxide layers from the workpiece surface, roughening the surface to eliminate residual stress and increase the surface hardness of the substrate.

[0003] The working principle of traditional internal blasting mechanisms is to mix compressed air and abrasive materials and then spray them out through a spray gun so that the abrasive material is sprayed onto the inner wall surface of the workpiece. At the same time, existing blasting guns cannot be swung to blast the workpiece, which limits the range and effect of blasting. Utility Model Content

[0004] This invention aims to solve the above-mentioned technical problems by providing a sandblasting gun head.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0006] A sandblasting gun head includes a sandblasting gun head body, wherein a mixing chamber is formed in the sandblasting gun head body;

[0007] The sandblasting gun head body is equipped with a connecting pipe for connecting to an external sand conveyor.

[0008] A gas connection pipe for connecting to external high-pressure gas is installed on one side of the sandblasting gun head body.

[0009] A nozzle is installed at one end of the gas connection pipe, located in the mixing chamber;

[0010] The connecting pipe connects to the mixing chamber, and a mixing diffuser is installed at the end of the sandblasting gun head body away from the nozzle.

[0011] The sandblasting gun head body is equipped with a movable device that drives the sandblasting gun head body to swing and spray sand.

[0012] Preferably, the nozzle has an increasingly larger inner cavity near the gas connection pipe.

[0013] Preferably, the mixing diffuser includes a mixing tube connected to the sandblasting gun head body and a retaining ring on the outside of the mixing tube.

[0014] Preferably, the inner cavity of the mixing tube near the mixing chamber has an increasingly larger structure.

[0015] Preferably, the movable device includes opposing columns and a movable column connected by a bearing between the two columns. A bracket for fixing the sandblasting gun head body is installed on the movable column, and a swinging device for driving the movable column to swing is connected to the outside of the movable column.

[0016] Preferably, the rocking device includes a drive motor and a turntable at the rotating end of the drive motor. A rocking arm is installed on one side of the movable column, and a movable arm is hinged to one side of the rocking arm, with the movable arm being off-axis hinged to the turntable.

[0017] With the above structure, this utility model has the following advantages:

[0018] The sandblasting gun head of this invention delivers sand and high-pressure gas through a connecting pipe and a gas connecting pipe, respectively. After mixing in the mixing chamber, the gas is sprayed out through a mixing diffuser, ensuring the consistency and uniformity of the sandblasting effect. Furthermore, the sandblasting gun head can be oscillated by a movable device, allowing for a larger sandblasting range on the workpiece.

[0019] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is an internal view of the present invention;

[0023] Figure 3 This is a schematic diagram of the connection of the movable device of this utility model.

[0024] As shown in the figure: 1. Sandblasting gun head body; 2. Mixing chamber; 3. Connecting pipe; 4. Gas connecting pipe; 5. Nozzle; 6. Mixing diffuser; 601. Mixing pipe; 602. Retaining ring; 7. Movable device; 701. Column; 702. Movable column; 703. Support; 8. Swinging device; 801. Drive motor; 802. Turntable; 803. Swinging arm; 804. Movable arm. Detailed Implementation

[0025] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0026] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0027] The present invention will now be described in further detail in conjunction with the full text.

[0028] Combined with appendix Figures 1-3 A sandblasting gun head includes a gun head body 1, a mixing chamber 2 inside the gun head body 1, a connecting pipe 3 for connecting to an external sand conveying system, and a gas connection pipe 4 for connecting to an external high-pressure gas system on one side of the gun head body 1. A nozzle 5 is installed at one end of the gas connection pipe 4, located within the mixing chamber 2. The connecting pipe 3 connects to the mixing chamber 2. A mixing diffuser 6 is installed at the end of the gun head body 1 away from the nozzle 5. The inner cavity of the nozzle 5 near the gas connection pipe 4 has an increasingly larger structure. The gas connection pipe 4 is connected to an external high-pressure gas system via a pipe, and the connecting pipe 3 is connected to an external sand conveying pressure tank via a pipe. Specifically, the pressure tank uses compressed air pressure to force sand into the sand conveying pipe, and then into the connecting pipe 3.

[0029] In specific implementation of this utility model, such as Figure 1 and Figure 2 As shown. The mixing diffuser 6 includes a mixing pipe 601 connected to the sandblasting gun head body 1 and a retaining ring 602 on the outside of the mixing pipe 601. Specifically, a certain distance is reserved between the nozzle 5 and the mixing pipe 601, and the sand and high-pressure gas are mixed in the mixing chamber 2.

[0030] In specific implementation of this utility model, such as Figure 1 and Figure 2 As shown, the inner cavity of the mixing tube 601 near the mixing chamber 2 has an increasingly larger structure to facilitate mixing. The increasing size of the inner cavity near the mixing chamber 2 also facilitates the entry of sand and gas, which then exits through small holes, increasing the spray force of the sand.

[0031] In specific implementation of this utility model, such as Figure 1 and Figure 3 As shown. A movable device 7 for driving the sandblasting gun head body 1 to swing and blast sand is installed on the sandblasting gun head body 1. The movable device 7 includes opposing columns 701 and a movable column 702 connected by bearings between the two columns. A bracket 703 for fixing the sandblasting gun head body 1 is installed on the movable column 702. A swinging device 8 for driving the movable column 702 to swing is connected to the outside of the movable column 702. Specifically, the movable column 702 is connected to the column 701 by bearings, and one side of the movable column 702 passes through the column 701. The column 701 and the drive motor 801 can be fixed in the required place by bolts. The swinging device 8 includes the drive motor 801 and a turntable 802 at the rotating end of the drive motor 801. A rocker arm 803 is installed on one side of 2. A movable arm 804 is hinged to one side of the rocker arm 803 and is off-axis hinged to the turntable 802. Specifically, the drive motor 801 rotates, which drives the turntable 802 to rotate. The movable arm 804 drives the rocker arm 803 to swing around the center of the movable column 702, and drives the sandblasting gun head body 1 to swing and blast sand. The sandblasting gun head body 1 can be fixedly connected to the movable column 702 by a bracket and bolts. Multiple sets of sandblasting gun head bodies 1 can be set, and another set of movable columns 702 can also be set. A linkage arm is hinged between the two sets of rocker arms 803. Both ends of the linkage arm are off-axis hinged to the two rocker arms 803 to achieve linkage.

[0032] Example 1:

[0033] Gas connection pipe 4 is connected to external high-pressure gas through a pipeline, and connecting pipe 3 is connected to an external sand conveying pressure tank through a pipeline. High-pressure gas and sand enter the mixing chamber 2 respectively. The sand and high-pressure gas are mixed in the mixing chamber 2 and then sprayed out through the mixing pipe 601 to sandblast the workpiece.

[0034] Example 2:

[0035] Compared to Embodiment 1, this embodiment adds a movable device 7 and a swinging device 8. The sandblasting gun head body 1 can be fixedly connected to the movable column 702 by a bracket and bolts. The drive motor 801 rotates, which drives the turntable 802 to rotate. The movable arm 804 drives the swinging arm 803 to swing around the center of the movable column 702, and drives the sandblasting gun head body 1 to swing and blast sand.

[0036] The present invention and its embodiments have been described above. This description is not restrictive, and the embodiments shown throughout the text are only one of the embodiments of the present invention. The actual structure is not limited to this. In conclusion, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.

Claims

1. A sandblasting gun head, characterized in that, It includes a sandblasting gun head body (1), and a mixing chamber (2) is provided inside the sandblasting gun head body (1); The sandblasting gun head body (1) is equipped with a connecting pipe (3) for connecting to external sand delivery. A gas connection pipe (4) for connecting to external high-pressure gas is installed on one side of the sandblasting gun head body (1); A nozzle (5) is installed at one end of the gas connecting pipe (4) and inside the mixing chamber (2); The connecting pipe (3) connects to the mixing chamber (2), and a mixing diffuser (6) is installed at the end of the sandblasting gun head body (1) away from the nozzle (5); The sandblasting gun head body (1) is equipped with a movable device (7) that drives the sandblasting gun head body (1) to swing and spray sand.

2. The sandblasting gun head according to claim 1, characterized in that: The nozzle (5) has an increasingly larger inner cavity near the gas connection pipe (4).

3. The sandblasting gun head according to claim 1, characterized in that: The mixing diffuser (6) includes a mixing tube (601) connected to the sandblasting gun head body (1) and a retaining ring (602) on the outside of the mixing tube (601).

4. A sandblasting gun head according to claim 3, characterized in that: The mixing tube (601) has an increasingly larger inner cavity near the mixing chamber (2).

5. A sandblasting gun head according to claim 1, characterized in that: The movable device (7) includes two opposing columns (701) and a movable column (702) connected by a bearing between the two columns. A bracket (703) for fixing the sandblasting gun head body (1) is installed on the movable column (702). A swinging device (8) for driving the movable column (702) to swing is connected to the outside of the movable column (702).

6. A sandblasting gun head according to claim 5, characterized in that: The swing device (8) includes a drive motor (801) and a turntable (802) at the rotating end of the drive motor (801). A swing arm (803) is installed on one side of the movable column (702). A movable arm (804) is hinged to one side of the swing arm (803) and the movable arm (804) is off-axis hinged to the turntable (802).

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