Conveying pipeline for shot blasting machine

Abstract

The utility model relates to the technical field of conveying pipelines, in particular to a conveying pipeline for a shot blasting machine. A pipe body is of a composite structure and sequentially comprises a lining layer, a sound insulation middle layer and an outer protection layer from inside to outside, a corner pipe body is arranged at the corner of the pipeline, the side wall structure of the corner pipe body is consistent with that of the pipe body, the corner pipe body is composed of an arc-shaped plate, a mounting plate and a pair of side plates, the side plates are arranged on the arc-shaped plate at intervals, and the mounting plate is arranged on the opposite side face of the arc-shaped plate. A magnetic attraction component is mounted on the side, away from the arc-shaped plate, of the mounting plate, a sealing connecting piece is arranged at the connecting position of the pipe body and the corner pipe body and used for sealing connection of the pipe body and the corner pipe body, and the conveying pipeline can attract part of flying metal pellets to form a protection layer on the inner wall of the corner pipe body through the composite pipe body structure in cooperation with the corner pipe body and the magnetic attraction component. The impact and friction of subsequent pellets on the inner wall are reduced, abrasion is reduced, meanwhile, the abrasion resistance, sound insulation and sealing performance of the pipeline are improved through the sealing connecting piece, the service life can be prolonged, and noise pollution is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to conveying pipeline technical field, especially a conveying pipeline for shot blasting machine. BACKGROUND

[0002] In modern industrial production, shot blasting is widely used in many fields such as mechanical manufacturing, automobile industry, aerospace, etc. as a common surface treatment process. The shot blasting machine realizes the cleaning, strengthening and finishing of the workpiece surface by high-speed spraying metal shots onto the workpiece surface. The performance of the conveying pipeline as a key component of the shot blasting machine directly affects the efficiency and quality of the shot blasting operation.

[0003] The existing conveying pipeline for shot blasting machine, in the process of use, because metal shots continuously collide and rub with the inner wall of the pipeline during high-speed conveying, especially at the corner of the pipeline, the inner wall of the pipeline will be severely impacted by the metal shots, which makes the inner wall of the corner easily damaged, leading to the decline of the sealing performance and the leakage of the shots. At the same time, the metal shots will produce a lot of noise when impacting the pipeline wall during conveying, causing serious noise pollution to the working environment and affecting the physical and mental health of the operators. Therefore, there is an urgent need for a conveying pipeline for shot blasting machine to solve the above problems. SUMMARY

[0004] To overcome the shortcomings of the prior art, the utility model provides a conveying pipeline for shot blasting machine, which solves the technical problems of the inner wall of the corner of the existing pipeline being easily damaged, leading to the decline of the sealing performance of the pipeline and the leakage of the metal shots.

[0005] To achieve the above purpose, the utility model is implemented by the following technical solutions:

[0006] A conveying pipeline for shot blasting machine for conveying metal shots, comprising:

[0007] A pipe body comprising, from the inside out, an inner lining layer, a sound insulation middle layer and an outer protective layer;

[0008] A corner pipe body provided at the corner of the pipe body, the side wall of the corner pipe body adopts the same composite structure as the pipe body, and the corner pipe body comprises an arc-shaped plate, a mounting plate and a pair of side plates, the pair of side plates are arranged on the arc-shaped plate at intervals, and the mounting plate is arranged on the side surface opposite to the arc-shaped plate;

[0009] A magnetic attraction component installed on the side of the mounting plate away from the arc-shaped plate;

[0010] A sealing connector arranged at the connection between the pipe body and the corner pipe body, the sealing connector is used for sealingly connecting the pipe body and the corner pipe body.

[0011] Based on the above structure, the principle of the conveying pipeline for shot blasting machine is that: the pipeline adopts a multi-layer composite structure, and in the process of conveying metal shots, the inner lining layer directly contacts the shots and mainly plays a role of wear resistance, which can effectively resist the friction and impact of the metal shots on the inner layer during the conveying process, thereby prolonging the service life of the pipeline. The high-speed movement of the metal shots in the pipeline may generate a large noise, and the sound insulation middle layer is used to absorb and block these noises, thereby reducing the noise pollution in the working environment and providing a relatively quiet working environment for the operators. The outer protective layer is used to protect the inner lining layer and the sound insulation middle layer, prevent the damage of external mechanical damage, corrosion, ultraviolet radiation and other factors to the inner layer structure, improve the overall protection performance of the pipeline, and enhance its durability in complex working environment. The corner pipe body enables the pipeline to smoothly transition at the corner, reduces the resistance and impact force of the metal shots when turning, avoids the accumulation or blockage of the shots, and ensures the smoothness of the conveying. During the conveying process of the metal shots, the magnetic attraction part can attract part of the metal shots flying in the pipeline to the inner wall of the corner pipe body to form a protective layer, which can reduce the impact of the metal shots on the inner wall of the corner pipe body, thereby prolonging the service life of the pipeline at the corner. The sealing connector is used to prevent the leakage of the metal shots at the connection, avoid causing pollution to the working environment and waste of the metal shots, and at the same time, the good sealing performance can also ensure the stability of the pressure in the pipeline, ensure the smooth conveying of the metal shots in the pipeline, and improve the reliability and safety of the conveying system.

[0012] Further, the conveying pipeline for shot blasting machine in the application is provided with an access hole and a sealing cover plate installed on the mounting plate. As a preferred scheme of the application, the access hole of the conveying pipeline for shot blasting machine is used for checking and repairing the inside of the corner pipe body, and the sealing effect of the cover plate can prevent dust, moisture, sundries and the like from entering the inside of the pipeline, protect the internal structure of the pipeline from the influence of external factors, prolong the service life, and further improve the performance and reliability of the entire conveying pipeline.

[0013] Further, the shot blasting machine conveying pipeline provided by the application comprises the magnetic component, the magnetic component comprises an electromagnet, and the electromagnet is detachably installed on the side of the cover plate away from the arc-shaped plate. As a preferred solution of the application, the shot blasting machine conveying pipeline provided by the application can generate magnetism after the electromagnet is electrified, can adsorb part of the metal shots flying in the pipeline on the inner wall of the corner pipe body, and can form a protective layer. The protective layer can effectively reduce the direct impact and friction of the subsequent metal shots on the inner wall of the corner pipe body, reduce the wear degree of the inner wall, prolong the service life of the corner pipe body, and ensure the long-term stable operation of the conveying pipeline. The magnetism of the electromagnet can be realized by controlling the on-off of the current. When it is needed to adsorb the metal shots to form the protective layer, the current is turned on to make the electromagnet generate magnetism. When the pipeline is overhauled or cleaned, the current can be turned off to make the electromagnet lose magnetism, so that the adsorbed metal shots can be conveniently cleaned, and the pipeline interior can be conveniently maintained and processed.

[0014] Further, the shot blasting machine conveying pipeline provided by the application comprises the magnetic component, the magnetic component comprises an electromagnet, and the electromagnet is detachably installed on the side of the cover plate away from the arc-shaped plate. As a preferred solution of the application, the shot blasting machine conveying pipeline provided by the application can generate magnetism after the electromagnet is electrified, can adsorb part of the metal shots flying in the pipeline on the inner wall of the corner pipe body, and can form a protective layer. The protective layer can effectively reduce the direct impact and friction of the subsequent metal shots on the inner wall of the corner pipe body, reduce the wear degree of the inner wall, prolong the service life of the corner pipe body, and ensure the long-term stable operation of the conveying pipeline. The magnetism of the electromagnet can be realized by controlling the on-off of the current. When it is needed to adsorb the metal shots to form the protective layer, the current is turned on to make the electromagnet generate magnetism. When the pipeline is overhauled or cleaned, the current can be turned off to make the electromagnet lose magnetism, so that the adsorbed metal shots can be conveniently cleaned, and the pipeline interior can be conveniently maintained and processed.

[0015] Further, the shot blasting machine conveying pipeline provided by the application comprises the magnetic component, the magnetic component comprises an electromagnet, and the electromagnet is detachably installed on the side of the cover plate away from the arc-shaped plate. As a preferred solution of the application, the shot blasting machine conveying pipeline provided by the application can generate magnetism after the electromagnet is electrified, can adsorb part of the metal shots flying in the pipeline on the inner wall of the corner pipe body, and can form a protective layer. The protective layer can effectively reduce the direct impact and friction of the subsequent metal shots on the inner wall of the corner pipe body, reduce the wear degree of the inner wall, prolong the service life of the corner pipe body, and ensure the long-term stable operation of the conveying pipeline. The magnetism of the electromagnet can be realized by controlling the on-off of the current. When it is needed to adsorb the metal shots to form the protective layer, the current is turned on to make the electromagnet generate magnetism. When the pipeline is overhauled or cleaned, the current can be turned off to make the electromagnet lose magnetism, so that the adsorbed metal shots can be conveniently cleaned, and the pipeline interior can be conveniently maintained and processed.

[0016] Further, the sound insulation middle layer of the conveying pipeline for a shot blasting machine comprises an acoustic cotton layer and a damping rubber layer, the acoustic cotton layer is coated on the outside of the wear-resistant ceramic layer, and the damping rubber layer is arranged on the outside of the acoustic cotton layer.

[0017] Further, the outer protective layer of the conveying pipeline for a shot blasting machine comprises a metal woven mesh layer and a corrosion-resistant coating, the metal woven mesh layer is coated on the outside of the damping rubber layer, and the corrosion-resistant coating is sprayed on the outer surface of the metal woven mesh layer.

[0018] Further, the cover plate of the conveying pipeline for a shot blasting machine is made of manganese steel.

[0019] The technical scheme can achieve the following beneficial effects:

[0020] The conveying pipeline for a shot blasting machine has the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 FIG. 1 is a three-dimensional structural schematic view of the conveying pipeline for a shot blasting machine according to an embodiment of the present application;

[0022] Figure 2It is a transverse sectional view of a pipe body of a conveying pipeline for a shot blasting machine in the embodiments of the present application;

[0023] Figure 3 It is a longitudinal sectional view of the conveying pipeline for a shot blasting machine in operation in the embodiments of the present application;

[0024] Figure 4 It is a longitudinal sectional view of the conveying pipeline for a shot blasting machine in operation in the embodiments of the present application; Figure 3 It is a partial enlarged view of the area A in the middle circle.

[0025] In the figure: 1-metal shot; 2-pipe body; 21-inner lining layer; 22-sound insulation middle layer; 221-sound absorbing cotton layer; 222-damping rubber layer; 23-outer protective layer; 231-metal woven mesh layer; 232-corrosion resistant coating; 3-corner pipe body; 31-arc plate; 32-mounting plate; 320-inspection opening; 33-side plate; 34-cover plate; 4-magnetic component; 41-electromagnet; 5-sealing connector; 51-flange; 52-seal. DETAILED DESCRIPTION

[0026] As shown in Figure 1 , 2 , a conveying pipeline for a shot blasting machine for conveying metal shots 1, comprising:

[0027] a pipe body 2, the pipe body 2 comprising in order from inside to outside: an inner lining layer 21, a sound insulation middle layer 22, and an outer protective layer 23;

[0028] a corner pipe body 3, the corner pipe body 3 being provided at a corner of the pipe body 2, the side wall of the corner pipe body 3 adopting the same composite structure as the pipe body 2, the corner pipe body 3 comprising: an arc plate 31, a mounting plate 32, and a pair of side plates 33, the pair of side plates 33 being spaced apart and provided on the arc plate 31, the mounting plate 32 being provided on the side opposite to the arc plate 31;

[0029] a magnetic component 4, the magnetic component 4 being mounted on the side of the mounting plate 32 away from the arc plate 31;

[0030] a sealing connector 5, the sealing connector 5 being provided at the connection between the pipe body 2 and the corner pipe body 3, the sealing connector 5 being used to seal and connect the pipe body 2 and the corner pipe body 3.

[0031] Based on the above structure, the principle of the conveying pipeline of the shot blasting machine is that: the pipeline adopts a multi-layer composite structure, and in the process of conveying the metal shot 1, the inner lining layer 21 directly contacts the shot, mainly plays a role of wear resistance, can effectively resist the friction and impact of the metal shot 1 on the inner layer in the conveying process, and prolongs the service life of the pipeline; the metal shot 1 may generate a large noise during high-speed movement in the pipeline, and the sound insulation middle layer 22 is used to absorb and block these noises, reduce the noise pollution in the working environment, and provide a relatively quiet working environment for the operator; the outer protective layer 23 is used to protect the inner lining layer 21 and the sound insulation middle layer 22 inside, prevent external mechanical damage, corrosion, ultraviolet radiation and other factors from damaging the inner layer structure, improve the overall protection performance of the pipeline, and enhance its durability in complex working environment; the corner pipe body 3 enables the pipeline to smoothly transition at the corner, reduces the resistance and impact force of the metal shot 1 when turning, avoids the accumulation or blockage of the shot, and ensures the smoothness of the conveying; during the conveying of the metal shot 1, the magnetic attraction part 4 can attract part of the metal shot 1 flying in the pipeline to the inner wall of the corner pipe body 3, forming a protective layer, which can reduce the impact of the metal shot 1 on the inner wall of the corner pipe body 3, and further prolong the service life of the pipeline at the corner; the sealing connector 5 is used to prevent the metal shot 1 from leaking at the connection, avoid causing pollution of the working environment and waste of the metal shot 1, at the same time, good sealing performance can also ensure the stability of the pressure in the pipeline, ensure that the metal shot 1 can be smoothly conveyed in the pipeline, improve the reliability and safety of the conveying system.

[0032] In the embodiment, as shown in the figure, Figure 3 The installation plate 32 is provided with an access hole 320, and the access hole 320 is sealingly installed with a cover plate 34. The access hole 320 is used for checking and repairing the inside of the corner pipe body 3, and the sealing effect of the cover plate 34 can prevent dust, moisture, sundries and the like from entering the inside of the pipeline, protect the internal structure of the pipeline from being affected by external factors, prolong the service life, and further improve the performance and reliability of the entire conveying pipeline. The cover plate 34 is installed on the installation plate 32 by bolts (not shown).

[0033] In the embodiment, the magnetic attraction part 4 comprises an electromagnet 41 which is detachably mounted on the side of the cover plate 34 away from the arc-shaped plate 31. The electromagnet 41 generates magnetism after being electrified, and can attract the metal pellets 1 flying in the pipeline to the inner wall of the corner pipe body 3 to form a protective layer. This protective layer can effectively reduce the direct impact and friction of the subsequent metal pellets 1 on the inner wall of the corner pipe body 3, reduce the wear degree of the inner wall, thereby prolonging the service life of the corner pipeline and ensuring the long-term stable operation of the conveying pipeline. The magnetism of the electromagnet 41 can be realized by controlling the on-off of the current. When it is needed to attract the metal pellets 1 to form a protective layer, the current is turned on to make the electromagnet 41 generate magnetism. When pipeline maintenance or cleaning operations are performed, the current can be turned off to make the electromagnet 41 lose magnetism, so that the attracted metal pellets 1 can be conveniently cleaned down, and the pipeline interior can be conveniently maintained and processed, which is flexible and convenient to operate.

[0034] In the embodiment, as shown in Figure 4 The sealing connector 5 comprises a pair of flange plates 51 and a sealing member 52. The pair of flange plates 51 are arranged at the connection between the pipe body 2 and the corner pipe body 3, and are respectively mounted on the pipe body 2 and the corner pipe body 3. The sealing member 52 is arranged on the abutting surface of the pair of flange plates 51, and is arranged circumferentially along the flange plate 51. The flange connection facilitates installation and disassembly. When the conveying pipeline is installed, the pipe body 2 and the corner pipe body 3 can be conveniently connected through the flange plates 51. When the pipeline needs to be maintained, replaced or adjusted, the flange plates 51 can be easily disassembled to separate the pipe body 2 and the corner pipe body 3, thereby reducing the installation and maintenance difficulty of the pipeline system and improving the work efficiency. The sealing member 52 is used to fill the gap between the pair of flange plates 51, prevent the metal pellets 1 from leaking from the connection between the pipe body 2 and the corner pipe body 3, and maintain the stability of the pressure inside the pipeline. The pair of flange plates 51 are connected through bolts (not shown), and the sealing member 52 is a rubber sealing ring.

[0035] In the embodiment, the inner lining layer 21 is a wear-resistant ceramic layer. The wear-resistant ceramic is used to resist the friction and impact of the metal pellets 1 in the high-speed conveying process, reduce the internal wear of the pipeline, and thereby prolong the service life of the pipeline. The wear-resistant ceramic is an alumina ceramic.

[0036] In the embodiment, the sound insulation middle layer 22 comprises: a sound-absorbing cotton layer 221 and a damping rubber layer 222, the sound-absorbing cotton layer 221 is coated on the outside of the wear-resistant ceramic layer, and the damping rubber layer 222 is arranged on the outside of the sound-absorbing cotton layer 221. When the metal shot 1 flows at a high speed in the pipeline, collides with each other and impacts the inner wall of the pipeline, the sound-absorbing cotton layer 221 is used for reducing the propagation of noise, reducing the noise pollution generated when the shot blasting machine works, the damping rubber layer 222 is used for inhibiting the propagation of noise, further reducing the intensity of the noise propagation to the outside, and improving the sound insulation effect. The sound-absorbing cotton layer 221 is made of glass wool, and the damping rubber layer 222 is made of nitrile rubber.

[0037] In the embodiment, the outer protective layer 23 comprises: a metal woven mesh layer 231 and a corrosion-resistant coating layer 232, the metal woven mesh layer 231 is coated on the outside of the damping rubber layer 222, and the corrosion-resistant coating layer 232 is sprayed on the outer surface of the metal woven mesh layer 231. The metal woven mesh layer 231 is used for improving the strength and rigidity of the pipeline, when the pipeline is subjected to external force, the metal woven mesh layer 231 can effectively disperse and absorb the external force, prevent the pipeline from being deformed or damaged due to the external force, enhance the impact resistance and extrusion resistance of the whole pipeline, and improve the durability of the pipeline; the corrosion-resistant coating layer 232 is used for isolating corrosive substances in the outside world and preventing the inside of the pipeline from being damaged. The metal woven mesh layer 231 is made of galvanized steel wire mesh, and the corrosion-resistant coating layer 232 is made of polyurethane corrosion-resistant coating.

[0038] In the embodiment, the cover plate 34 is a manganese steel plate. The manganese steel plate has good wear resistance, and can effectively resist the impact and wear of the metal shot 1, thereby prolonging the service life of the cover plate 34, reducing the replacement frequency caused by wear, and improving the economy.

[0039] The technical principle of the utility model is described in combination with specific embodiments, and these descriptions are only for explaining the principle of the utility model, and cannot be explained as the limitation of the protection scope of the utility model in any way. Based on the explanation herein, other specific embodiments of the utility model can be conceived by those skilled in the art without creative labor, and these embodiments will fall within the protection scope of the utility model.

Claims

1. A conveying pipe for a shot blasting machine for conveying metal shots (1), characterized in that: The utility model relates to a kind of composite pipe, including: Pipe body (2), the pipe body (2) includes successively from inside to outside: inner liner (21), sound insulation middle layer (22), outer protective layer (23); Corner pipe body (3), the corner pipe body (3) is located at the corner of pipe body (2), the side wall of the corner pipe body (3) uses the same composite structure with pipe body (2), the corner pipe body (3) includes: arc plate (31), mounting plate (32), a pair of side plates (33), a pair of side plates (33) are spaced apart on arc plate (31), the mounting plate (32) is located on the side opposite to arc plate (31); Magnetic attraction component (4), the magnetic attraction component (4) is installed in mounting plate (32) side away from arc plate (31); Sealing connector (5), the sealing connector (5) is arranged at the connecting portion of pipe body (2) and corner pipe body (3), and the sealing connector (5) is used to seal the connection of pipe body (2) and corner pipe body (3).

2. A conveying pipe for a shot blasting machine according to claim 1, characterized in that: Mounting plate (32) is equipped with: access hole (320), the access hole (320) is sealedly installed with cover plate (34).

3. A conveying pipe for a shot blasting machine according to claim 2, characterized in that: The magnetic attraction component (4) includes: electromagnet (41), the electromagnet (41) is detachably installed on the side of cover plate (34) away from arc plate (31).

4. The conveying pipe for a shot blasting machine according to claim 1, characterized in that: The sealing connector (5) includes: a pair of flange plates (51), sealing element (52), a pair of flange plates (51) are arranged at the connecting portion of pipe body (2) and corner pipe body (3), a pair of flange plates (51) are installed on pipe body (2), corner pipe body (3) respectively, the sealing element (52) is arranged on the butt joint surface of a pair of flange plates (51), and the sealing element (52) is arranged along the circumference of flange plate (51).

5. The conveying pipe for a shot blasting machine according to claim 1, characterized in that: The inner liner (21) is wear-resistant ceramic layer.

6. A delivery duct for a shot blasting machine according to claim 5, characterized in that: The sound insulation middle layer (22) includes: sound-absorbing cotton layer (221), damping rubber layer (222), the sound-absorbing cotton layer (221) is covered outside wear-resistant ceramic layer, and the damping rubber layer (222) is covered outside sound-absorbing cotton layer (221).

7. A delivery duct for a shot blasting machine according to claim 6, characterized in that: The outer protective layer (23) includes: metal woven mesh layer (231), corrosion-resistant coating (232), the metal woven mesh layer (231) is covered outside damping rubber layer (222), and the corrosion-resistant coating (232) is sprayed on the outer surface of metal woven mesh layer (231).

8. The conveying pipe for a shot blasting machine according to claim 2, characterized in that: The cover plate (34) is manganese steel plate.

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