High-sealing-performance automobile spoiler sand blasting treatment bin

Abstract

The utility model relates to a high-leakproofness automobile spoiler sand blasting treatment bin, and belongs to the field of sand blasting equipment, the high-leakproofness automobile spoiler sand blasting treatment bin comprises a bin body and a bin door, the bin body is provided with a treatment chamber and an operation hole, the operation hole is communicated with the treatment chamber, the bin door is located at the operation hole and is rotatably connected with the bin body, a spray gun is arranged in the treatment chamber, and the spray gun is connected with the bin door. An expansion body is arranged on the edge of the bin door, a controller is arranged on the bin body, and the controller is used for controlling expansion or contraction of the expansion body. Whether the gap exists between the bin door and the hole wall of the operation hole or not is changed through the volume expansion and contraction change of the expansion body, and the sealing performance of the operation hole in the closed state is guaranteed as much as possible on the premise that the bin door can rotate smoothly.

Description

Technical Field

[0001] The present application relates to the field of sandblasting equipment, and in particular to a highly sealed automobile rear wing sandblasting chamber. Background Art

[0002] Sand blasting is a process that uses the impact of high-speed sand flow to clean and roughen the surface of a workpiece. It uses compressed air as a power source to spray materials (such as quartz sand, corundum, sea sand, etc.) onto the surface of the workpiece in the form of a high-speed jet beam, thereby removing rust and other dirt on the surface of the workpiece and improving the surface finish of the workpiece.

[0003] In the related art, the sandblasting equipment includes a sandblasting chamber, in which a chamber that needs to be sealed is provided, in which a sandblasting gun is provided, and a workpiece is placed in the chamber, and the sandblasting gun sprays sand toward the surface of the workpiece for sandblasting. Therefore, a chamber door is provided on the sandblasting chamber, and the chamber door is movably connected to the sandblasting chamber, and the chamber can be opened or closed, so that the workpiece can be placed in the chamber or taken out of the chamber.

[0004] For larger workpieces, in order to facilitate the movement, placement and fixing of the workpieces, the size of the chamber door and the range of door opening are both larger. Therefore, the chamber door and the sandblasting chamber of some large workpiece sandblasting equipment are rotatably connected, and the rotating axis is located in the middle of the chamber door; the fixture used to temporarily fix the workpiece is located on the chamber door, and the fixture is located on the side of the chamber door away from the chamber, and the operator can take and place the workpiece on the chamber door; the chamber door rotates 180°, and the workpiece is sent into the sandblasting chamber.

[0005] Since the door itself is thick, in order to ensure that the door can rotate smoothly, even when the door closes the chamber, the edge of the door and the sandblasting chamber body should avoid hard contact as much as possible, and sealing strips with large volume and hardness should be avoided. As a result, the sealing effect between the door and the chamber body is not good. Utility Model Content

[0006] In order to improve the above problems, the present application provides a highly sealed automobile rear wing sandblasting chamber.

[0007] The application provides a highly sealed automobile tail wing sandblasting chamber adopts the following technical solution:

[0008] A highly sealed automobile rear wing sandblasting processing chamber comprises a chamber body and a chamber door, wherein the chamber body is provided with a processing chamber and an operation hole, the operation hole is communicated with the processing chamber, the chamber door is located at the operation hole and is rotatably connected to the chamber body, a spray gun is arranged in the processing chamber, an expansion body is arranged at the edge of the chamber door, a controller is arranged on the chamber body, and the controller is used to control the expansion or contraction of the expansion body.

[0009] By adopting the above technical solution, the expandable body can contract or expand on the hatch door, changing its own volume. When the hatch door is closed, the expandable body expands in volume, filling and sealing the gap between the hatch door and the hole wall of the operation hole, improving the sealing performance at the operation hole. When the operation hole needs to be opened, the expandable body contracts, reducing in volume, and the gap between the hatch door and the hole wall of the operation hole allows the hatch door to rotate smoothly.

[0010] Preferably, the expandable body is an elastic inflatable tube, which is connected to the hatch door along the edge contour of the hatch door. The controller is an air pump, and the air pump is communicated with the elastic inflatable tube. When the elastic inflatable tube expands, the side wall of the elastic inflatable tube abuts against the hole wall of the operation hole.

[0011] By adopting the above technical solution, the air pump inflates or deflates the elastic inflatable tube, and the change in air pressure inside the elastic inflatable tube changes its own volume size, realizing the expansion and contraction control of the expandable body.

[0012] Preferably, a rotating shaft tube is fixedly connected to the hatch door, and the axis of the rotating shaft tube is the rotation axis of the hatch door relative to the bin body. The hatch door is rotationally connected to the bin body through the rotating shaft tube. A connecting air tube is connected between the air pump and the elastic inflatable tube, and the connecting air tube passes through the inside of the rotating shaft tube.

[0013] By adopting the above technical solution, the connecting air tube is located inside the rotating shaft tube or the hatch door, and it will not hinder the cooperation between the hatch door and the bin body.

[0014] Preferably, a clamping strip is fixedly connected to the tube wall of the elastic inflatable tube, and a clamping groove for the clamping strip to be embedded is provided on the hatch door.

[0015] By adopting the above technical solution, the elastic inflatable tube is installed on the hatch door by a clamping method.

[0016] Preferably, the rotation axis of the hatch door relative to the bin body is the shape symmetry line of the hatch door, and clamping fixtures for clamping workpieces are symmetrically arranged on opposite sides of the hatch door.

[0017] By adopting the above technical solution, when the hatch door rotates 180°, the surface of the hatch door panel facing the processing chamber is changed, and at the same time, the positions of the two clamping fixtures are interchanged. Before and after rotation, the hatch door is in a closed state for the operation hole, improving the space utilization rate.

[0018] Preferably, a protective plate is connected to the side of the hatch door facing the clamping fixture. When the workpiece is in the processing chamber, the protective plate is on the side of the hatch door facing the spray gun, and the workpiece is between the spray gun and the protective plate.

[0019] By adopting the above technical solution, during the process of the spray gun spraying abrasive materials towards the workpiece, the abrasive materials that bypass the workpiece or bounce off the surface of the workpiece are most likely to directly hit the plate surface of the protection plate rather than the surface of the bin door, playing an isolation and protection role for the structure of the bin door.

[0020] Preferably, a bending part is integrally formed at the edge of the protection plate, and one side of the bending part close to the workpiece is inclined.

[0021] By adopting the above technical solution, the bending part aims to increase the interception range of the abrasive materials.

[0022] Preferably, the protection plate is made of manganese steel plate.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. Through the setting of the expansion body and the controller, the expansion body can contract or expand on the bin door, changing its own volume. When the bin door is closed, the volume of the expansion body expands, filling and sealing the gap between the bin door and the hole wall of the operation hole, improving the sealing performance at the operation hole. When it is necessary to open the operation hole, the expansion body contracts, the volume decreases, and the gap between the bin door and the hole wall of the operation hole can allow the bin door to rotate smoothly;

[0025] 2. Through the setting of the protection plate, during the process of the spray gun spraying abrasive materials towards the workpiece, the abrasive materials that bypass the workpiece or bounce off the surface of the workpiece are most likely to directly hit the plate surface of the protection plate rather than the surface of the bin door, playing an isolation and protection role for the structure of the bin door. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic structural diagram of a high-sealing automobile tail wing sandblasting treatment bin in an embodiment of the present application.

[0027] Figure 2 It is a schematic cross-sectional view of the structure of the bin door in an embodiment of the present application.

[0028] Description of the reference numerals: 1, bin body; 11, treatment chamber; 12, operation hole; 13, spray gun; 2, bin door; 21, fixture; 22, clamping groove; 23, rotating shaft tube; 3, protection plate; 31, bending part; 4, expansion body; 41, clamping strip; 42, connecting air pipe; 5, workpiece. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The following is a further detailed description of the present application in conjunction with the attached Figure 1-2 drawings.

[0030] An embodiment of the present application discloses a high-sealing automobile tail wing sandblasting treatment bin, as Figure 1As shown, it includes a bin body 1 and a bin door 2. A processing chamber 11 and an operation hole 12 are provided on the bin body 1, and the operation hole 12 is communicated with the processing chamber 11; the bin door 2 is used to open or close the operation hole 12. A spray gun 13 is arranged in the processing chamber 11, and the workpiece 5 will be located in the processing chamber 11. The spray gun 13 can spray abrasive on the surface of the workpiece 5 for sandblasting treatment. In this embodiment, the workpiece 5 is an automotive spoiler, which is in an arc-shaped long strip shape.

[0031] As Figure 1 and 2 shown, a rotating shaft tube 23 is fixedly connected to the bin door 2. The bin door 2 is rotationally connected to the bin body 1 through the rotating shaft tube 23. The bin door 2 is located at the operation hole 12 and is rotationally connected to the bin body 1. The axis of the rotating shaft tube 23 is the rotation axis of the bin door 2 relative to the bin body 1. The shape of the bin door 2 is rectangular, and the rotation axis of the bin door 2 is the symmetry axis of the shape of the bin door 2. The axial direction of the rotating shaft tube 23 is the vertical direction, and there are two rotating shaft tubes 23, which are respectively located in the middle of the upper and lower edges of the bin door 2. A motor for controlling the rotation of the rotating shaft tube 23 is installed on the top of the bin body 1. The rotation angle range of the bin door 2 is 180°, and the motor only controls the rotating shaft tube 23 and the bin door 2 to rotate back and forth within a semicircular range of 180°.

[0032] As Figure 1 shown, clamping fixtures 21 for clamping the workpiece 5 are symmetrically arranged on the opposite sides of the bin door 2, that is, both sides of the bin door 2 can temporarily fix the workpiece 5, and the workpiece 5 located on the side of the bin door 2 facing the processing chamber 11 is in a position where it can be sprayed with abrasive by the spray gun 13. The thickness of the bin door 2 is greater than the outer diameter of the rotating shaft tube 23. Therefore, in order to enable the bin door 2 to rotate smoothly, there is a gap between the edge of the bin door 2 and the hole wall of the operation hole 12. At the same time, an expansion body 4 is arranged on the edge of the bin door 2, and a controller is provided on the bin body 1 for controlling the expansion or contraction of the expansion body 4; the expansion or contraction of the expansion body 4 can change the presence or absence of the gap between the bin door 2 and the hole wall of the operation hole 12, and the airtightness in the closed state of the operation hole 12 is ensured as much as possible on the premise that the bin door 2 can rotate smoothly.

[0033] As Figure 1 and 2 shown, the expansion body 4 is an elastic air-filled tube, and the elastic air-filled tube is connected to the bin door 2 along the edge contour of the bin door 2; a clamping strip 41 is fixedly connected to the tube wall of the elastic air-filled tube, and a clamping groove 22 for the clamping strip 41 to be embedded is provided on the bin door 2, that is, the elastic air-filled tube is connected and fixed to the bin door 2 by a clamping method. A controller for controlling the expansion or contraction of the expansion body 4 is installed on the bin body 1. The controller is an air pump (not shown in the figure), and a connecting air tube 42 is connected between the air pump and the elastic air-filled tube. The connecting air tube 42 passes through the inside of the rotating shaft tube 23, so that the connecting air tube 42 will not have an obstructive effect on the cooperation between the bin door 2 and the bin body 1.

[0034] As Figure 1As shown in the figure, a protective plate 3 is installed on one side of the bin door 2 facing the fixture 21. When the workpiece 5 is located in the processing chamber 11, the protective plate 3 is located on the side of the bin door 2 facing the spray gun 13, and the workpiece 5 is located between the spray gun 13 and the protective plate 3; and two of the edges of the protective plate 3 are integrally formed with bending parts 31, and the side of the bending parts 31 close to the workpiece 5 is inclined; in this embodiment, the protective plate 3 is made of manganese steel plate. During the process of the spray gun 13 spraying abrasive on the workpiece 5, the abrasive that bypasses the workpiece 5 or rebounds from the surface of the workpiece 5 is likely to directly hit the surface of the protective plate 3 rather than the surface of the bin door 2, which plays an isolation and protection role for the structure of the bin door 2. The bending parts 31 are designed to increase the interception range of the abrasive.

[0035] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A sandblasting treatment chamber for a high-sealing automobile spoiler, comprising a chamber body (1) and a chamber door (2). A treatment chamber (11) and an operation hole (12) are formed in the chamber body (1). The operation hole (12) is communicated with the treatment chamber (11). The chamber door (2) is located at the operation hole (12) and is rotatably connected to the chamber body (1). A spray gun (13) is arranged in the treatment chamber (11), and it is characterized in that: An expansion body (4) is provided at the edge of the bin door (2), and a controller is provided on the bin body (1). The controller is used to control the expansion or contraction of the expansion body (4).

2. A sandblasting treatment chamber for a high-sealing automotive spoiler according to claim 1, characterized in that: The expansion body (4) is an elastic inflatable tube. The elastic inflatable tube is connected along the edge contour of the bin door (2) to the bin door (2). The controller is an air pump, and the air pump is communicated with the elastic inflatable tube. When the elastic inflatable tube expands, the side wall of the elastic inflatable tube abuts against the hole wall of the operation hole (12).

3. A sandblasting treatment chamber for a high-sealing automobile spoiler according to claim 2, characterized in that: A rotating shaft tube (23) is fixedly connected to the bin door (2). The axis of the rotating shaft tube (23) is the rotation axis of the bin door (2) relative to the bin body (1). The bin door (2) is rotationally connected to the bin body (1) through the rotating shaft tube (23). A connecting air tube (42) is connected between the air pump and the elastic inflatable tube, and the connecting air tube (42) passes through the inside of the rotating shaft tube (23).

4. A sandblasting treatment chamber for a high-sealing automobile spoiler according to claim 2 or 3, characterized in that: A clamping strip (41) is fixedly connected to the pipe wall of the elastic inflatable tube, and a clamping groove (22) for the clamping strip (41) to be embedded is formed in the bin door (2).

5. A high-sealing automobile spoiler sandblasting treatment chamber according to any one of claims 1-3, characterized in that: The rotation axis of the bin door (2) relative to the bin body (1) is the shape symmetry line of the bin door (2). Clamps (21) for clamping the workpiece (5) are symmetrically arranged on opposite sides of the bin door (2).

6. The high-sealing automobile spoiler sandblasting treatment chamber according to claim 5, characterized in that: A protective plate (3) is connected to the side of the bin door (2) facing the clamp (21). When the workpiece (5) is located in the processing chamber (11), the protective plate (3) is located on the side of the bin door (2) facing the spray gun (13), and the workpiece (5) is located between the spray gun (13) and the protective plate (3).

7. A sandblasting treatment chamber for a high-sealing automobile spoiler according to claim 6, characterized in that: A bent portion (31) is integrally formed at the edge of the protective plate (3), and the side of the bent portion (31) close to the workpiece (5) is inclined.

8. A sandblasting treatment chamber for a high-sealing automobile spoiler according to claim 6, characterized in that: The protective plate (3) is made of manganese steel plate.

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