Shot blasting machine for stainless steel plate

Abstract

The utility model discloses a shot blasting machine for a stainless steel plate. The shot blasting machine comprises a conveying mechanism and a shot blasting mechanism, the conveying mechanism comprises a conveying table, a conveying motor and a conveying belt are installed on the conveying table, the conveying belt comprises a plurality of conveying rollers, and the conveying motor drives the conveying rollers to rotate; the shot blasting mechanism comprises a cleaning chamber, an upper shot blasting group and a lower shot blasting group; the cleaning chamber is arranged on the conveying table. The conveying belt penetrates through the cleaning chamber. The cleaning chamber comprises an upper side wall and a lower side wall, and the number of the impeller heads installed on the upper side wall is smaller than that of the impeller heads installed on the lower side wall. The smoothness of the upper surface and the lower surface of the stainless steel plate subjected to shot blasting is kept basically consistent; in addition, the defect that the lower surface is scratched during shot blasting of large-class duplex stainless steel plates of stainless steel is overcome. When a stainless steel plate is subjected to shot blasting, the problem that shot blasting particles adhere to the lower surface of the stainless steel plate is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel plate processing, in particular to a shot blasting machine for stainless steel plates. Background Art

[0002] Shot blasting machine is also called sandblasting machine or sandblasting machine in some fields or processes. It is a shot blasting equipment that uses high-speed shot blasting to impact the casting plate, thereby cleaning or strengthening the surface of the casting plate (the casting plate in this scheme is a stainless steel plate). The existing shot blasting machine mainly includes: a conveying mechanism for conveying stainless steel plates, a shot blasting mechanism for performing cyclic shot blasting, and a purge system for cleaning dust generated during the shot blasting process. The conveying mechanism generally includes a plurality of conveying rollers and a driving mechanism for driving the conveying rollers to rotate. Among them, the existing shot blasting mechanism includes a first shot blasting group located above the conveying roller and projecting shots from top to bottom; and a second shot blasting group located below the conveying roller and projecting shots from bottom to top; wherein the number of shot blasters in the first shot blasting group and the second shot blasting group is the same and symmetrically arranged in the upper and lower directions of the conveying roller. The problem with this technical solution is that although the process technology of first shot blasting and then straightening after the stainless steel plate is solution heat treated can greatly reduce the indentation pitting defects in the surface straightening process of the stainless steel plate, it also brings about surface quality problems in the shot blasting process. Specifically: the steel shots thrown by the second shot blasting group need to overcome gravity during the blasting process, which results in the surface finish of the upper surface of the stainless steel plate being significantly better than the surface finish of the lower surface of the stainless steel plate under the same blasting power of the first and second shot blasting groups. In addition, in practice, some of the steel shots ejected from bottom to top adhere to the surface of the conveyor roller, which causes the steel shots adhering to the surface of the conveyor roller to scratch the lower surface of the duplex stainless steel plate when shot blasting the duplex stainless steel plate of the large category of stainless steel; and when shot blasting the stainless steel plate, the steel shots adhering to the surface of the conveyor roller will be flattened by the stainless steel plate and adhere to the lower surface of the stainless steel plate, resulting in the need for subsequent cleaning. Therefore, how to develop a new shot blasting machine for stainless steel plates to overcome the above-mentioned problems in the prior art is a direction that technical personnel in this field need to further study. Utility Model Content

[0003] The utility model aims to provide a shot blasting machine for a stainless steel plate, which can keep the upper and lower surface roughness of the stainless steel plate after shot blasting basically consistent.

[0004] The utility model discloses a shot blasting machine for stainless steel plates, comprising: a conveying mechanism and a shot blasting mechanism; wherein:

[0005] The conveying mechanism comprises a conveying platform, on which a conveying motor and a conveying belt are installed, the conveying belt comprises a plurality of conveying rollers arranged in parallel, and the conveying motor is connected to the conveying rollers and is used to drive the conveying rollers to rotate;

[0006] The shot blasting mechanism comprises a cleaning chamber, an upper shot blasting group and a lower shot blasting group; the cleaning chamber is arranged on the conveying platform, and a material inlet and a material outlet are arranged at both ends of the cleaning chamber, and the conveyor belt passes through the material inlet and the material outlet in sequence;

[0007] The cleaning chamber comprises an upper wall and a lower wall; the upper wall comprises a first slanted wall, an upper top wall and a second slanted wall connected in sequence; the upper top wall extends in a horizontal direction; and the first slanted wall and the second slanted wall are symmetrically arranged on both sides of the upper top wall; the lower wall comprises a third slanted wall, a lower bottom wall and a fourth slanted wall connected in sequence; the lower bottom wall extends in a horizontal direction; the third slanted wall and the fourth slanted wall are symmetrically arranged on both sides of the lower bottom wall;

[0008] The upper shot blasting group includes a first shot blasting wheel, a second shot blasting wheel, a third shot blasting wheel and a fourth shot blasting wheel; the first shot blasting wheel is installed on the first inclined wall, the second shot blasting wheel and the third shot blasting wheel are installed on the upper top wall; the fourth shot blasting wheel is installed on the second inclined wall;

[0009] The lower shot blasting group includes a fifth shot blasting wheel, a sixth shot blasting wheel, a seventh shot blasting wheel, an eighth shot blasting wheel, a ninth shot blasting wheel and a tenth shot blasting wheel; the fifth shot blasting wheel, the sixth shot blasting wheel and the seventh shot blasting wheel are installed on the third inclined wall, and the eighth shot blasting wheel, the ninth shot blasting wheel and the tenth shot blasting wheel are installed on the fourth inclined wall.

[0010] By adopting this technical solution: the number of steel shots thrown by the upper shot blasting group per unit time is adjusted to be less than the number of steel shots thrown by the lower shot blasting group. By increasing the number of steel shots hitting the lower surface of the stainless steel plate, the upper and lower surface roughness of the stainless steel plate after shot blasting is kept basically the same.

[0011] Preferably, the conveying roller comprises a carbon steel roller, and a nylon sleeve is installed on the outer side wall of the carbon steel roller.

[0012] By adopting this technical solution: utilizing the elastic characteristics of the nylon sleeve, the situation where steel shots adhere to the surface of the conveyor roller is reduced. Even if some steel shots adhere to the nylon sleeve, when the duplex stainless steel plate of the large category of stainless steel is shot blasted, when the duplex stainless steel plate squeezes the surface of the conveyor roller, the elastic nylon sleeve produces a buffer deformation, avoiding the steel shots adhering to the surface of the conveyor roller from scratching the lower surface of the duplex stainless steel plate. When shot blasting the stainless steel plate, when the stainless steel plate squeezes the surface of the conveyor roller, the elastic nylon sleeve produces a buffer deformation, avoiding the situation where the steel shots are flattened by the stainless steel plate and adhere to the lower surface of the stainless steel plate, thereby overcoming the problem of subsequent difficulty in cleaning the lower surface of the stainless steel plate.

[0013] Preferably, the material outlet is provided with an upper cleaning member and a lower cleaning member; the upper cleaning member includes an upper bristle group extending downward in a vertical direction; the lower cleaning member includes a lower bristle group extending upward in a vertical direction.

[0014] By adopting this technical solution: the upper and lower surfaces of the stainless steel plate after shot blasting are cleaned respectively by using the upper brush group and the lower brush group.

[0015] Preferably, the inner wall of the cleaning chamber is lined with a wear-resistant protective plate.

[0016] By adopting this technical solution, the damage caused by steel shots hitting the inner wall of the cleaning chamber is reduced, and the service life of the cleaning chamber is extended.

[0017] Preferably, the lower bristle group includes a first rubber bristle group, a second rubber bristle group and a first steel wire bristle group arranged in sequence in a horizontal direction, wherein the first rubber bristle group is closer to the material outlet than the first steel wire bristle group.

[0018] Compared with the prior art, the utility model has the following advantages:

[0019] Firstly, the utility model adjusts the quantity ratio of the upper side shot blasting and the lower side shot blasting so that the upper and lower surface roughness of the stainless steel plate after shot blasting are kept basically consistent.

[0020] Secondly, the utility model can avoid scratching the lower surface of the duplex stainless steel plate when shot blasting the duplex stainless steel plate of the stainless steel category.

[0021] Thirdly, the utility model can prevent the steel shots from being flattened and adhering to the lower surface of the stainless steel plate when the stainless steel plate is shot blasted, thus overcoming the problem that it is difficult to clean the lower surface of the stainless steel plate subsequently.

[0022] Fourthly, the utility model can clean the upper and lower surfaces of the stainless steel plate after shot blasting.

[0023] Fifthly, the utility model can reduce the damage caused by the steel shot hitting the inner wall of the cleaning chamber, thereby extending the service life of the cleaning chamber.

[0024] Finally, the utility model has a simple structure, a convenient operation process, and is easy to prepare and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of Example 1, in which the bearing seats are omitted.

[0026] Figure 2 for Figure 1 The schematic cross-sectional view of the cleaning chamber at AA is shown in FIG. 1 , in which the conveying roller is omitted.

[0027] Figure 3 Schematic diagram of the structure of the conveying roller in Example 1.

[0028] In the figure, the component names corresponding to the reference numerals are as follows:

[0029] 110, conveying platform; 120, conveying motor; 130, conveying roller; 140, synchronous belt; 121, transmission belt; 131, carbon steel roller; 132, nylon sleeve; 210, cleaning chamber; 211, first inclined wall; 212, upper top wall; 213, second inclined wall; 214, third inclined wall; 215, lower bottom wall; 216, fourth inclined wall; 221, first shot blasting machine; 222, second shot blasting machine; 223 , the third shot blasting machine; 224, the fourth shot blasting machine; 231, the fifth shot blasting machine; 232, the sixth shot blasting machine; 233, the seventh shot blasting machine; 234, the eighth shot blasting machine; 235, the ninth shot blasting machine; 236, the tenth shot blasting machine; 300, stainless steel plate; 410, upper brush group; 421, the first rubber brush group; 422, the second rubber brush group; 423, the first wire brush group; 500, wear-resistant protective plate. DETAILED DESCRIPTION

[0030] The following is an explanation of the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0031] Example 1, please refer to Figure 1-3 :

[0032] A shot blasting machine for stainless steel plates, comprising: a conveying mechanism and a shot blasting mechanism; wherein:

[0033] The conveying mechanism includes a conveying platform 110 , on which a conveying motor 120 and a conveying belt are installed. The conveying belt includes a plurality of conveying rollers 130 arranged in parallel. Both ends of the roller body of each conveying roller 130 are respectively installed in a bearing seat and are connected to each other through a synchronous belt 140 .

[0034] The ejection shaft of the conveying motor 120 is connected to a conveying roller 130 through a transmission belt 121, and is used to drive the conveying roller 130 to rotate;

[0035] The shot blasting mechanism includes a cleaning chamber 210, an upper shot blasting group and a lower shot blasting group; the cleaning chamber 210 is arranged on the conveying platform 110, and a material inlet and a material outlet are arranged at both ends of the cleaning chamber 210, and the synchronous belt 140 passes through the material inlet and the material outlet and penetrates the cleaning chamber 210;

[0036] The cleaning chamber 210 includes an upper wall and a lower wall; the upper wall includes a first sloping wall 211, an upper top wall 212 and a second sloping wall 213 connected in sequence; the upper top wall 212 extends in a horizontal direction; and the first sloping wall 211 and the second sloping wall 213 are symmetrically arranged on both sides of the upper top wall 212; the lower wall includes a third sloping wall 214, a lower bottom wall 215 and a fourth sloping wall 216 connected in sequence; the lower bottom wall 215 extends in a horizontal direction; the third sloping wall 214 and the fourth sloping wall 216 are symmetrically arranged on both sides of the lower bottom wall 215.

[0037] The upper shot blasting group includes a first shot blasting wheel 221, a second shot blasting wheel 222, a third shot blasting wheel 223 and a fourth shot blasting wheel 224; the first shot blasting wheel 221 is installed on the first inclined wall 211, the second shot blasting wheel 222 and the third shot blasting wheel 223 are installed on the upper top wall 212; the fourth shot blasting wheel 224 is installed on the second inclined wall 213;

[0038] The lower shot blasting group includes a fifth shot blasting machine 231, a sixth shot blasting machine 232, a seventh shot blasting machine 233, an eighth shot blasting machine 234, a ninth shot blasting machine 235 and a tenth shot blasting machine 236; the fifth shot blasting machine 231, the sixth shot blasting machine 232, and the seventh shot blasting machine 233 are installed on the third inclined wall 214, and the eighth shot blasting machine 234, the ninth shot blasting machine 235 and the tenth shot blasting machine 236 are installed on the fourth inclined wall 216.

[0039] In this example, the conveying roller 130 includes a carbon steel roller 131 , and a nylon sleeve 132 is installed on the outer side wall of the carbon steel roller 131 .

[0040] In this example: the material outlet is symmetrically provided with an upper cleaning member and a lower cleaning member; the upper cleaning member includes an upper bristle group 410 extending downward in the vertical direction; the lower cleaning member includes a lower bristle group located below the material outlet and extending upward in the vertical direction. The lower bristle group further includes a first rubber bristle group 421, a second rubber bristle group 422 and a first steel wire bristle group 423 arranged in sequence in the horizontal direction. The first rubber bristle group 421 is closer to the material outlet than the first steel wire bristle group 423, and the second rubber bristle group 422 is located between the first rubber bristle group 421 and the first steel wire bristle group 423.

[0041] In this example: the inner wall of the cleaning chamber 210 is lined with a wear-resistant protective plate 500 .

[0042] In practice, the working process is as follows:

[0043] The conveying motor 120 is started, and the conveying roller 130 on the far left in the figure is driven to rotate in a directional manner through the conveyor belt, and the conveying roller 130 drives the other conveying rollers 130 to rotate synchronously in a directional manner through the synchronous belt 140. The stainless steel plate 300 to be processed is placed on the conveyor belt, and the stainless steel plate 300 to be processed moves from left to right under the coordinated action of each conveying roller 130 and enters the cleaning chamber 210. The upper shot blasting group and the lower shot blasting group are started synchronously, and the first shot blasting machine 221, the second shot blasting machine 222, the third shot blasting machine 223 and the fourth shot blasting machine 224 jointly form a shot blasting barrage from top to bottom on the upper surface of the stainless steel plate 300. The fifth shot blasting machine, the sixth shot blasting machine 232, the seventh shot blasting machine 233, the eighth shot blasting machine 234, the ninth shot blasting machine 235 and the tenth shot blasting machine 236 jointly form a shot blasting barrage from bottom to top on the lower surface of the stainless steel plate 300. Since the number of shot blasting machines in the lower shot blasting group is greater than that of the upper shot blasting group, the number of steel shots impacting the lower surface of the stainless steel plate 300 is increased, thereby offsetting the problem that the impact force of the steel shots thrown by the lower shot blasting group is weakened due to overcoming gravity during the projectile process, so that the upper and lower surface roughness of the stainless steel plate 300 after shot blasting remains basically consistent.

[0044] In the above process, when the shot blasting hits the surface of the conveying roller 130, the elastic characteristics of the nylon sleeve 132 are used to reduce the situation where the steel shot adheres to the surface of the conveying roller 130. Even if some of the steel shot adheres to the nylon sleeve 132 on the roller surface, when the duplex stainless steel plate in the shot blasting stainless steel category is squeezed on the surface of the conveying roller 130, the elastic nylon sleeve 132 produces a buffering deformation, thereby preventing the steel shot adhering to the surface of the conveying roller 130 from scratching the lower surface of the duplex stainless steel plate. When the stainless steel plate 300 is shot blasted, when the stainless steel plate 300 squeezes the surface of the conveying roller 130, the elastic nylon sleeve 132 produces a buffering deformation, thereby preventing the steel shot from being flattened by the stainless steel plate 300 and adhering to the lower surface of the stainless steel plate 300, thereby overcoming the problem of subsequent difficulty in cleaning the lower surface of the stainless steel plate 300. When the stainless steel plate 300 is moved out of the cleaning chamber 210 through the material outlet, the upper brush group 410 and the lower brush group are used to clean a small amount of steel shots remaining on the upper and lower surfaces of the stainless steel plate 300 respectively.

[0045] The above is a detailed description of the embodiments of the present invention in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they still fall within the protection scope of the present invention.

Claims

1. A shot blasting machine for stainless steel plates, comprising: Conveying mechanism and shot blasting mechanism; The conveying mechanism comprises a conveying platform, on which a conveying motor and a conveying belt are installed, the conveying belt comprises a plurality of conveying rollers arranged in parallel, and the conveying motor is connected to the conveying rollers and is used to drive the conveying rollers to rotate; The shot blasting mechanism comprises a cleaning chamber, an upper shot blasting group and a lower shot blasting group; the cleaning chamber is arranged on the conveying platform, and a material inlet and a material outlet are arranged at both ends of the cleaning chamber, and the conveyor belt passes through the material inlet and the material outlet in sequence; The cleaning chamber comprises an upper wall and a lower wall; the upper wall comprises a first slanted wall, an upper top wall and a second slanted wall connected in sequence; the upper top wall extends in a horizontal direction; and the first slanted wall and the second slanted wall are symmetrically arranged on both sides of the upper top wall; the lower wall comprises a third slanted wall, a lower bottom wall and a fourth slanted wall connected in sequence; the lower bottom wall extends in a horizontal direction; the third slanted wall and the fourth slanted wall are symmetrically arranged on both sides of the lower bottom wall; The upper shot blasting group includes a first shot blasting wheel, a second shot blasting wheel, a third shot blasting wheel and a fourth shot blasting wheel; the first shot blasting wheel is installed on the first inclined wall, the second shot blasting wheel and the third shot blasting wheel are installed on the upper top wall; the fourth shot blasting wheel is installed on the second inclined wall; The lower shot blasting group includes a fifth shot blasting wheel, a sixth shot blasting wheel, a seventh shot blasting wheel, an eighth shot blasting wheel, a ninth shot blasting wheel and a tenth shot blasting wheel; the fifth shot blasting wheel, the sixth shot blasting wheel and the seventh shot blasting wheel are installed on the third inclined wall, and the eighth shot blasting wheel, the ninth shot blasting wheel and the tenth shot blasting wheel are installed on the fourth inclined wall.

2. The shot blasting machine for stainless steel plate according to claim 1, characterized in that: The conveying roller comprises a carbon steel roller, and a nylon sleeve is installed on the outer side wall of the carbon steel roller.

3. The shot blasting machine for stainless steel plate according to claim 2, characterized in that: The material outlet is provided with an upper cleaning member and a lower cleaning member; the upper cleaning member includes an upper bristle group extending downward in a vertical direction; the lower cleaning member includes a lower bristle group extending upward in a vertical direction.

4. The shot blasting machine for stainless steel plate according to claim 3, characterized in that: The inner wall of the cleaning chamber is lined with a wear-resistant protective plate.

5. The shot blasting machine for stainless steel plate according to claim 4, characterized in that: The lower bristle group includes a first rubber bristle group, a second rubber bristle group and a first steel wire bristle group which are arranged in sequence along the horizontal direction.

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