Adjustable sealing device and method for the sealing strength of the overhead conveyor passageway of the overhead conveyor shot blasting machine

Abstract

This invention discloses an adjustable sealing device and method for the overhead conveyor passageway of a shot blasting machine. The machine includes an overhead conveyor shot blasting machine, in which a workpiece is hoisted to the shot blasting chamber via an overhead conveyor hoist. It also includes a sealing device located at the overhead conveyor passageway opening. The sealing device comprises a sealing cavity that opens to the passageway opening. The cavity wall of the sealing cavity is provided with symmetrical brush strips. Each brush strip includes a handle and bristles arranged on the handle. Two symmetrical brush strips forming a set have their bristles facing each other. The handle has an air chamber, and the bristles have axial bristle chambers. The air chamber and bristle chambers are interconnected, allowing air to be supplied and evacuated from the bristle chambers, thus altering the structural strength of the bristles. This invention uses adjustable-strength bristles to seal the overhead conveyor passageway of the shot blasting chamber, reducing resistance while increasing the machine's ability to withstand the impact and deformation of shot and dust particles, achieving self-adaptive sealing and preventing shot and dust particles from entering the overhead conveyor system and causing mechanical equipment malfunctions.

Description

Technical Field

[0001] This invention belongs to the field of sealing technology for overhead conveyor shot blasting machines, and particularly relates to an adjustable sealing device and method for the sealing strength of the overhead conveyor passageway of an overhead conveyor shot blasting machine. Background Technology

[0002] A overhead conveyor shot blasting machine uses a overhead conveyor to lift the workpiece to be shot blasted and then pass it through the machine for processing. Because the overhead conveyor needs to pass over the top of the shot blasting machine, a long opening is required at the top of the machine, called the overhead conveyor passageway. This creates a sealing problem during shot blasting. Traditional seals typically use rubber seals, which suffer from high resistance, severe wear, and slow rubber rebound. This allows some shot and dust particles to easily enter the overhead conveyor system through gaps that haven't fully recovered, causing equipment malfunctions. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the shortcomings of the existing technology, the present invention provides an adjustable sealing device and method for the suspension passage of a suspension shot blasting machine. The suspension passage of the shot blasting chamber is sealed by bristles with adjustable structural strength, which reduces resistance and improves the ability to resist the impact deformation of shot and dust particles, thereby improving the sealing performance.

[0004] Technical solution: To achieve the above objectives, the present invention provides an adjustable sealing device for the overhead conveyor passage of the overhead conveyor shot blasting machine, comprising an overhead conveyor shot blasting machine, wherein the traveling track of the overhead conveyor shot blasting machine carries the workpiece to the shot blasting chamber via an overhead conveyor lifter, and the overhead conveyor lifter passes through the overhead conveyor passage at the top of the shot blasting chamber.

[0005] It also includes a sealing device installed at the opening of the overhead conveyor; the sealing device includes a sealing cavity that opens the overhead conveyor, and symmetrical brush strips are provided on the cavity wall of the sealing cavity. Each brush strip includes a handle and bristles arranged on the handle, and the bristles of two symmetrical brush strips arranged in a pair are oriented towards each other.

[0006] The brush handle has an air chamber, and the brush bristles have axial bristle chambers. The air chamber and the bristle chambers are connected. Air is supplied to and drawn from the bristle chambers through the air chambers, changing the structural strength of the brush bristles. The sealing strength of the overhead conveyor passage is adjusted by changing the structural strength of the brush bristles.

[0007] Furthermore, in the direction of travel of the workpiece being lifted by the overhead crane, the air chamber of the brush handle is divided into multiple sequentially arranged air sub-chambers. Different air sub-chambers, under different states of air supply and extraction, cause the corresponding bristles to be in different structural strength states, wherein:

[0008] The bristles corresponding to the air distribution chamber in the air supply state are in a high structural strength state, forming a high structural strength bristle area; the bristles corresponding to the air distribution chamber in the air extraction state are in a low structural strength state, forming a low structural strength bristle area; the high structural strength bristle area and the low structural strength bristle area can be converted, and the bristles of the air distribution chamber that the overhead crane is passing through are in a low structural strength state belonging to the low structural strength bristle area, while the bristles of the air distribution chamber that the overhead crane has passed through and has not yet passed through are in a high structural strength state belonging to the high structural strength bristle area.

[0009] Furthermore, each of the air distribution chambers is respectively equipped with an electric air valve and an air pressure sensor for detecting the internal air pressure.

[0010] Furthermore, the two brush strips that form a symmetrical group have magnetic attraction components between their opposing bristles. The bristles belonging to the high structural strength bristle area are magnetically connected by the magnetic attraction components, while the bristles belonging to the low structural strength bristle area are separated by the suspension cable moving and breaking the magnetic connection of the magnetic attraction components.

[0011] Furthermore, in the height direction of the sealed cavity, the number of brush strips is multiple groups arranged at intervals.

[0012] Furthermore, it includes a pair of uprights symmetrically erected on both sides of the catenary entrance, the pair of uprights being positioned to form the sealed cavity.

[0013] Furthermore, a support plate is provided on the cavity wall of the sealed cavity at the installation height position of the brush strip, and the brush strip is mounted on the support plate via the brush handle.

[0014] The sealing method of the adjustable sealing device at the overhead conveyor passage of the overhead conveyor shot blasting machine involves the workpiece being hoisted by the overhead conveyor and traveling along the track. When it enters the shot blasting chamber of the overhead conveyor shot blasting machine, in the traveling direction, when it reaches the corresponding air distribution chamber range, air is drawn into the air distribution chamber to reduce the structural strength of the corresponding bristles, forming a low structural strength bristle area. This makes the bristles easier to deform under the impact of the overhead conveyor, and the magnetic attraction components between the bristles are easily broken open, causing the bristles on both sides of the overhead conveyor to be impacted and dispersed, reducing resistance and friction between the overhead conveyor and the bristles.

[0015] The remaining air distribution chambers correspond to the brush areas that the overhead conveyor has already passed through and has not yet passed through. Air is supplied to the air distribution chambers corresponding to the brush areas that the overhead conveyor has already passed through and has not yet passed through to improve the structural strength of the corresponding brushes, thereby forming high structural strength brush areas. This enhances the deformation resistance of the brushes and improves their ability to resist the impact of shot and dust particles in the shot blasting chamber. This ensures that when the overhead conveyor is running, shot and dust particles are prevented from entering the overhead conveyor and the traveling track, thus preventing mechanical equipment failure.

[0016] For the bristles in the high structural strength bristle area, the bristles belonging to the same group of bristles are magnetically connected by magnetic components, and the bristles on both sides are connected into one piece by magnetic components, which further improves the ability of the bristles to resist separation and deformation when hit by shot blasting and dust particles.

[0017] Beneficial effects: This invention uses adjustable-strength bristles to seal the overhead conveyor passage of the shot blasting chamber, reducing resistance while improving the ability to resist the impact deformation of shot and dust particles, thus improving sealing performance and achieving adaptive sealing to prevent shot and dust particles from entering the overhead conveyor system and causing mechanical equipment failure. Attached Figure Description

[0018] Appendix Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Appendix Figure 2 This is a schematic diagram of the overall structure of the sealing device;

[0020] Appendix Figure 3 This is a schematic diagram of the main structure of the sealing device;

[0021] Appendix Figure 4 This is a schematic diagram of the brush strip and its partially cut-out and enlarged structure.

[0022] Appendix Figure 5 This is a top view of the sealing device. Detailed Implementation

[0023] The invention will now be further described with reference to the accompanying drawings.

[0024] As attached Figure 1 Appendix Figure 2 Appendix Figure 4 and appendix Figure 5As shown, the adjustable sealing device for the overhead conveyor passage of the overhead conveyor shot blasting machine includes the overhead conveyor shot blasting machine itself. The machine's traveling track is supported by an overhead conveyor hoist 2 that carries a workpiece 4 into the shot blasting chamber 1. The overhead conveyor hoist 2 passes through the overhead conveyor passage 3 at the top of the shot blasting chamber 1. The device also includes a sealing device 5 located at the overhead conveyor passage 3. The sealing device 5 includes a sealing cavity 50 that opens through the overhead conveyor passage 3. Symmetrical brush strips 6 are arranged on the cavity wall of the sealing cavity 50. The brush strip 6 includes a handle 7 and bristles 8 arranged on the handle 7. Two brush strips 6 forming a symmetrical group have their bristles 8 facing each other. The handle 7 has an air chamber 70, and each bristle 8 has an axial bristle cavity 80. The air chamber 70 and the bristle cavity 80 are interconnected, allowing air to be supplied and drawn from the bristle cavity 80, thus altering the structural strength of the bristles 8. This change in the structural strength of the bristles 8 adjusts the sealing strength of the overhead conveyor passage 3. This invention uses adjustable-strength bristles 8 to seal the overhead conveyor passage 3 of the shot blasting chamber 50, reducing resistance while increasing the ability to withstand the impact and deformation of shot and dust particles, improving sealing performance, and achieving self-adaptive sealing to prevent shot and dust particles from entering the overhead conveyor system and causing mechanical equipment malfunctions.

[0025] As attached Figure 4 and attached Figure 5 As shown, in the traveling direction 10 of the overhead conveyor 2 lifting the workpiece 4, the air chamber 70 of the brush handle 7 is divided into multiple sequentially arranged air sub-chambers 700. Different air sub-chambers 700, in different states of air supply and air extraction, cause the corresponding bristles 8 to be in different structural strength states. Specifically: the bristles 8 corresponding to the air sub-chamber 700 in the air supply state are in a high structural strength state, forming a high structural strength bristle area 100; the bristles 8 corresponding to the air sub-chamber 700 in the air extraction state are in a low structural strength state, forming a low structural strength bristle area 200. The high structural strength bristle area 100 and the low structural strength bristle area 200 are interchangeable. The bristles 8 belonging to the air sub-chamber 700 that the overhead conveyor 2 is currently passing through are in a low structural strength state belonging to the low structural strength bristle area 200, while the bristles 8 belonging to the air sub-chamber 700 that the overhead conveyor 2 has passed through and has not yet passed through are in a high structural strength state belonging to the high structural strength bristle area 100. In the area traversed by the overhead conveyor 2, the amount of gas within the bristles 8 is relatively small, making them easily deformed by the impact of the conveyor 2, thus reducing resistance. In the area already traversed by the conveyor 2, a sealed state needs to be restored, increasing the amount of gas within the bristles 8, allowing them to recover their original shape and strengthening their deformation-resistant structure. In the area not yet traversed by the conveyor 2, a larger amount of gas needs to be maintained within the bristles 8 to preserve this enhanced deformation-resistant structure.

[0026] As attached Figure 4As shown, each of the air distribution chambers 700 is respectively equipped with an electric air valve 9 and an air pressure sensor 11 for detecting the internal air pressure. The electric air valve 9 is an electric valve.

[0027] As attached Figure 3 Or attached Figure 4 As shown, two symmetrically arranged brush strips 6 have magnetic attraction components 12 between their opposing bristles 8. The bristles 8 belonging to the high-strength bristle zone 100 are magnetically connected by the magnetic attraction components 12, while the bristles 8 belonging to the low-strength bristle zone 200 are separated by the suspension chain 2 moving along the chain, which breaks the magnetic connection of the magnetic attraction components 12. Connecting the opposing bristles 8 by the magnetic attraction components 12 further enhances their ability to withstand impacts from shot blasting and dust particles.

[0028] As attached Figure 3 As shown, in order to further improve and ensure the sealing effect of the brush sealing technology used in this invention, the number of brush strips 6 in the height direction of the sealing cavity 50 is multiple sets arranged at intervals to achieve multi-layer sealing protection.

[0029] The present invention includes a pair of uprights 13 symmetrically erected on both sides of the opening 3 of the catenary walkway, the pair of uprights 13 forming a sealing cavity 50. A support plate 14 is provided on the cavity wall of the sealing cavity 50 at the installation height position of the brush strip 6, the brush strip 6 is mounted on the support plate 14 by a brush handle 7, and the brush handle 7 is installed on the support plate 14 by bolts and nuts.

[0030] The sealing method of the adjustable sealing device for the overhead conveyor passage of the overhead conveyor shot blasting machine: The workpiece 4 is hoisted by the overhead conveyor 2 and travels along the travel track. When it travels into the shot blasting chamber 1 of the overhead conveyor shot blasting machine, when it travels to the corresponding air distribution chamber 700 in the travel direction, the structural strength of the corresponding bristles 8 is reduced by drawing air into the air distribution chamber 700, forming a low structural strength bristle area 200. This makes the bristles 8 easier to deform under the impact of the overhead conveyor 2, and the magnetic attraction component 12 between the bristles 8 is easily broken open, so that the bristles on both sides of the overhead conveyor 2 are impacted and scattered, reducing resistance and reducing the friction between the overhead conveyor 2 and the bristles 8.

[0031] The remaining air distribution chambers 700 correspond to the brush areas that the overhead conveyor 2 has already passed through and has not yet passed through. Air is supplied to the air distribution chambers 700 corresponding to the brush areas that the overhead conveyor 2 has already passed through and has not yet passed through, thereby improving the structural strength of the corresponding brushes 8, thus forming high structural strength brush areas 200. This enhances the deformation resistance of the brushes 8 and improves their ability to resist the impact of shot and dust particles in the shot blasting chamber 1. This ensures that when the overhead conveyor 2 is running, shot and dust particles are prevented from entering the overhead conveyor 2 and the traveling track, thus preventing mechanical equipment failure.

[0032] For the bristles 8 in the high structural strength bristle area 200, the bristles 8 belonging to the same group of brush strips 6 are magnetically connected by magnetic attraction component 12, and the bristles 8 on both sides are connected as one unit by magnetic attraction component, which further improves the ability of the bristles 8 to resist separation and deformation when hit by shot blasting and dust particles.

[0033] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. Adjustable sealing device for the overhead conveyor passage of the overhead conveyor shot blasting machine, including the overhead conveyor shot blasting machine, the traveling track of the overhead conveyor shot blasting machine is used to hoist the workpiece (4) through the overhead conveyor hanger (2) to travel into the shot blasting chamber (1), and the overhead conveyor hanger (2) passes through the overhead conveyor passage (3) at the top of the shot blasting chamber (1). Its features are: It also includes a sealing device (5) provided at the opening (3) of the overhead catenary; the sealing device (5) includes a sealing cavity (50) that guides the opening (3) of the overhead catenary, and symmetrical brush strips (6) are provided on the cavity wall of the sealing cavity (50). The brush strips (6) include a brush handle (7) and bristles (8) arranged on the brush handle (7). The bristles (8) of the two brush strips (6) that form a symmetrical group are arranged facing each other. The brush handle (7) has an air chamber (70), and the brush bristles (8) have an axial brush bristle chamber (80). The air chamber (70) is connected to the brush bristle chamber (80). Air is supplied to and drawn from the brush bristle chamber (80) through the air chamber (70), thereby changing the structural strength of the brush bristles (8). The change in the structural strength of the brush bristles (8) is used to adjust the sealing strength of the overhead conveyor passage (3). In the traveling direction (10) of the overhead crane (2) lifting the workpiece (4), the air chamber (70) of the brush handle (7) is divided into multiple sequentially arranged air sub-chambers (700). Different air sub-chambers (700) in different states of air supply and air extraction cause the corresponding bristles (8) to be in different structural strength states, wherein: When the air distribution chamber (700) is in the air supply state, the brush (8) corresponding to it is in a high structural strength state, forming a high structural strength brush area (100); when the air distribution chamber (700) is in the air extraction state, the brush (8) corresponding to it is in a low structural strength state, forming a low structural strength brush area (200); the high structural strength brush area (100) and the low structural strength brush area (200) can be converted, and the brush (8) of the air distribution chamber (700) that the overhead crane (2) is passing through is in a low structural strength state belonging to the low structural strength brush area (200), and the brush (8) of the air distribution chamber (700) that the overhead crane (2) has passed through and has not yet passed through is in a high structural strength state belonging to the high structural strength brush area (100); Each of the gas distribution chambers (700) is respectively provided with an electric air valve (9) and an air pressure sensor (11) for detecting the internal air pressure; Two brush strips (6) that form a pair of symmetrical brushes have magnetic components (12) between the brush bristles (8) facing each other. The brush bristles (8) belonging to the high structural strength brush bristle area (100) are magnetically connected by the magnetic components (12), and the brush bristles (8) belonging to the low structural strength brush bristle area (200) are separated by the suspension carrier (2) moving to break the magnetic connection of the magnetic components (12).

2. The adjustable sealing device for the overhead conveyor passageway of the overhead conveyor shot blasting machine according to claim 1, characterized in that: In the height direction of the sealed cavity (50), the number of groups of brush strips (6) is multiple groups arranged at intervals.

3. The adjustable sealing device for the overhead conveyor passageway of the overhead conveyor shot blasting machine according to claim 2, characterized in that: It includes a pair of uprights (13) that are symmetrically erected on both sides of the overhead catenary (3), and the pair of uprights (13) are positioned to form the sealed cavity (50).

4. The adjustable sealing strength sealing device for the overhead conveyor passageway of the overhead conveyor shot blasting machine according to claim 3, characterized in that: The cavity wall of the sealed cavity (50) is provided with a support plate (14) at the installation height position of the brush strip (6), and the brush strip (6) is installed on the support plate (14) through the brush handle (7).

5. The sealing method of the adjustable sealing strength sealing device for the overhead conveyor passageway of the overhead conveyor shot blasting machine according to claim 2, 3, or 4, characterized in that: The workpiece (4) is hoisted by the overhead conveyor (2) and travels along the travel track. When it travels into the shot blasting chamber (1) of the overhead conveyor shot blasting machine, when it travels to the corresponding air distribution chamber (700) in the travel direction, the structural strength of the corresponding bristles (8) is reduced by drawing air into the air distribution chamber (700), forming a low structural strength bristle area (200), making the bristles (8) easy to deform under the impact of the overhead conveyor (2), and the magnetic attraction component (12) between the bristles (8) is easily blown away, so that the bristles on both sides of the overhead conveyor (2) are impacted and scattered, reducing resistance and reducing the friction between the overhead conveyor (2) and the bristles (8); The remaining air distribution chambers (700) correspond to the brush areas that the overhead conveyor (2) has passed through and has not yet passed through. Air is supplied to the air distribution chambers (700) corresponding to the brush areas that the overhead conveyor (2) has passed through and has not yet passed through, thereby improving the structural strength of the corresponding brushes (8) and forming a high structural strength brush area (200). This enhances the deformation resistance of the brushes (8) and improves their ability to resist the impact of shot and dust particles in the shot blasting chamber (1). This ensures that when the overhead conveyor (2) is running, shot and dust particles are prevented from entering the overhead conveyor (2) and the traveling track, thus preventing mechanical equipment failure. For the bristles (8) of the high structural strength bristle area (200), the bristles (8) belonging to the same group of brush strips (6) are magnetically connected by magnetic attraction component (12), and the bristles (8) on both sides are connected as one unit by magnetic attraction component, which further improves the ability of the bristles (8) to resist separation and deformation when hit by shot blasting and dust particles.

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