Conveying type shot blasting treatment system

Abstract

The invention provides a conveying type shot blasting treatment system which comprises a machine shell, a conveying belt of an annular structure is arranged at the two opposite ends of the machine shell in a penetrating mode, a plurality of shot blasting ejectors are further fixedly installed on the machine shell, the shot blasting ejectors are provided with shot blasting ejection openings which are located in the machine shell and face the upper belt face of the conveying belt, and a vibration box is further arranged in the machine shell. The upper belt face of the conveying belt penetrates through the vibrating box, the lower belt face of the conveying belt is located below the vibrating box, the top face of the vibrating box is open, a plurality of penetrating holes are formed in the bottom face of the vibrating box, a cover plate which is located below the vibrating box and covers the lower belt face of the conveying belt is further fixedly arranged in the machine shell, flow guide grooves are formed in the two sides of the cover plate respectively, one end of each flow guide groove is high, and the other end of each flow guide groove is low. The bottom of the machine shell is further fixedly connected with a guide-out hopper located under the lower end of the flow guide groove. The problem that in the prior art, the surface treatment effect of metal workpieces is not ideal possibly due to the fact that a conveying belt is in a relatively stable conveying state is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of shot blasting equipment, and in particular to a conveyor-type shot blasting treatment system. Background Art

[0002] During the surface treatment of metal workpieces, shot blasting equipment is generally used for sandblasting to remove the oxide layer impurities on the surface of the metal workpieces. For example, a shot blasting machine provided by a Chinese invention patent with the publication number CN118181156B can be used. The shot blasting machine includes: a shot blasting body, with a feed inlet and a discharge outlet provided on both sides of the shot blasting body, and a conveying mechanism is arranged inside the shot blasting body; a shot blasting mechanism, the shot blasting mechanism includes a shot blasting nozzle; it also includes: a shot blasting agent baffle, the shot blasting agent baffle is arranged below the shot blasting nozzle; a shot blasting agent acceleration belt, the shot blasting agent acceleration belt is arranged on the right side of the shot blasting agent baffle; a shot blasting recovery system, the shot blasting recovery system is arranged in the shot blasting body and below the conveying mechanism; wherein, a shot blasting output channel is formed between the shot blasting agent baffle and the shot blasting agent acceleration belt. This invention can meet the situation where a higher speed is required in shot blasting operations, improve the practicability of the shot blasting machine, and at the same time, through the setting of the shot blasting recovery system, the shot blasting can be effectively recycled, improving the effect of subsequent shot blasting operations. In the actual treatment process, the metal workpiece is impacted on the conveyor belt, and the conveyor belt is in a relatively stable conveying state, and the degree of sufficient contact between the workpiece and the shot blasting agent may be insufficient, so the surface treatment effect may not be ideal. Summary of the Invention

[0003] Aiming at the deficiencies in the prior art, the present invention provides a conveyor-type shot blasting treatment system, which solves the problem that the relatively stable conveying state of the conveyor belt in the prior art may lead to an unsatisfactory surface treatment effect of metal workpieces.

[0004] According to an embodiment of the present invention, a conveying shot blasting treatment system includes a housing. At both ends of the housing facing each other, a conveyor belt with an annular structure is disposed through. A plurality of shot blasting ejectors are fixedly installed on the housing. The shot blasting ejector has a shot blasting ejection port located inside the housing and facing the upper surface of the conveyor belt. A vibration box is also disposed inside the housing. The upper surface of the conveyor belt passes through the vibration box, and the lower surface of the conveyor belt is located below the vibration box. The top surface of the vibration box is open, and a plurality of through holes are provided on the bottom surface. A cover plate is fixedly disposed inside the housing below the vibration box and covering the upper part of the lower surface of the conveyor belt. Flow guiding grooves are respectively provided on both sides of the cover plate, and one end of the two flow guiding grooves is high and the other end is low. A discharge hopper is fixedly connected to the bottom of the housing directly below the low end of the flow guiding groove. In this solution, a vibration box is provided inside the housing for the upper surface of the conveyor belt to pass through. The metal workpieces pass through the housing together with the conveyor belt and also pass through the vibration box. The vibration box can provide vibration to the upper surface of the conveyor belt below, so that the metal workpieces also vibrate accordingly. This makes the contact efficiency between the metal workpieces and the shot blasting agent higher, and thus the surface treatment effect of the metal workpieces can be improved accordingly, solving the problem that the relatively stable conveying state of the conveyor belt in the prior art may lead to an unsatisfactory surface treatment effect of the metal workpieces.

[0005] Further, a vibration rod is fixedly connected to the bottom of the vibration box. The vibration rod passes through the housing and extends outside the housing and is connected to a vibration motor. A support plate for supporting the vibration rod is also fixedly connected outside the housing.

[0006] Further, a guiding hole is provided on the support plate. The vibration rod is also fixedly connected to a guiding rod that slides downward through the guiding hole. A limiting plate is fixedly connected to the lower end of the guiding rod.

[0007] Further, the cover plate includes a middle section that protrudes upward and has an arc-shaped top surface, and side sections that are fixedly connected to both sides of the middle section and extend obliquely upward in opposite directions. The two side sections and the middle section jointly enclose the flow guiding groove, and the higher end of the side section is also fixedly connected to the inner wall of the housing.

[0008] Further, through gaps are respectively recessed at both ends of the vibration box facing each other along the extending direction of the conveyor belt. The bottom surface of the through gap is fixedly connected with a mounting groove. A first idler is rotatably installed in the mounting groove, and the upper surface of the conveyor belt is in contact with the first idler.

[0009] Further, a vertical plate extending upward is fixedly connected to the inner bottom surface of the vibration box. The top end of the vertical plate is fixedly connected with a convex arc-shaped plate, and the upper surface of the conveyor belt is in contact with the top end of the arc-shaped plate.

[0010] Further, a first inlet and a first outlet for the upper surface of the conveyor belt to pass through are respectively provided at both ends of the housing, and a second inlet and a second outlet for the lower surface of the conveyor belt to pass through are respectively provided.

[0011] Further, a soft curtain is fixedly connected to the top surfaces of the first inlet and the first outlet, and the soft curtain extends downward and is spaced apart from the conveyor belt.

[0012] Further, a second idler is rotatably installed on the bottom surfaces of the first inlet and the first outlet, the upper belt surface of the conveyor belt contacts the second idler, a third idler is rotatably installed on the bottom surfaces of the second inlet and the second outlet, and the lower belt surface of the conveyor belt contacts the third idler.

[0013] Further, an air inlet pipe and an air outlet pipe are fixedly connected to the machine shell at both ends thereof respectively, and a blower and an exhaust fan are respectively connected to the air inlet pipe and the air outlet pipe.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] By arranging a vibration box in the machine shell, the metal workpiece passes through the vibration box along the upper belt surface of the conveyor belt. The vibration box can provide vibration to the upper belt surface of the conveyor belt below, so that the metal workpiece also vibrates accordingly. In this way, the contact efficiency between the metal workpiece and the shot peening agent is higher, and thus the surface treatment effect of the metal workpiece can be improved accordingly, solving the problem that the relatively stable conveying state of the conveyor belt in the prior art may lead to an unsatisfactory surface treatment effect of the metal workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0017] Figure 2 is a schematic diagram of the installation structure of a vibration motor of an embodiment of the present invention;

[0018] Figure 3 is a schematic diagram of the cover plate structure of an embodiment of the present invention;

[0019] Figure 4 is Figure 1 a partially enlarged schematic diagram of the local structure at A in

[0020] Figure 5 is Figure 1 a partially enlarged schematic diagram of the local structure at B in

[0021] In the above-mentioned drawings:

[0022] Housing 1, conveyor belt 2, upper belt surface 3, lower belt surface 4, shot blasting injector 5, vibration box 6, through notch 7, perforation 8, cover plate 9, diversion ditch 10, discharge hopper 11, vibration rod 12, vibration hole 13, support plate 14, vibration motor 15, guide rod 16, limit plate 17, middle section 18, side section 19, installation groove 20, first idler 21, vertical plate 22, arc plate 23, first inlet 24, first outlet 25, second inlet 26, second outlet 27, flexible curtain 28, air inlet pipe 29, air outlet pipe 30, second idler 31, third idler 32. Detailed implementation manner

[0023] The technical solutions in the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0025] In an exemplary embodiment, as Figures 1-5As shown, the present embodiment provides a conveyor-type shot blasting system, which includes a casing 1, and a conveyor belt 2 with an annular structure is provided at both ends of the casing 1, and the conveyor belt 2 has an upper belt surface 3 and a lower belt surface 4 distributed up and down. A plurality of shot blasting ejectors 5 are also fixedly mounted on the casing 1, and the shot blasting ejectors 5 have a shot blasting ejection port located in the casing 1 and facing the upper belt surface 3 of the conveyor belt 2, and the shot blasting agent is ejected from the shot blasting ejection port onto the upper belt surface 3 of the conveyor belt 2, that is, the metal workpiece is impacted and processed, which is different from the prior art. The difference between the two techniques is that a vibration box 6 is further arranged in the casing 1 in the present scheme. The top surface of the vibration box 6 is open, and the two opposite ends are respectively provided with through-notches 7. The upper belt surface 3 of the conveyor belt 2 passes through the through-notches 7, and the lower belt surface 4 is located below the vibration box 6. A plurality of through holes 8 are opened on the bottom surface of the vibration box 6 (similar to the prior art, the conveyor belt 2 is provided with holes that are not for metal workpieces to pass through, but the shot blasting agent can pass through). The set through holes 8 can allow the shot blasting agent to pass through, that is, the shot blasting agent first falls into the vibration box 6, and then After that, it falls downward through the perforation 8. In a further scheme, a cover plate 9 located below the vibration box 6 and covering the lower belt surface 4 of the conveyor belt 2 is fixedly arranged in the casing 1. Guide grooves 10 are respectively arranged on both sides of the cover plate 9, and one end of the two guide grooves 10 is high and the other end is low. The bottom of the casing 1 is also fixedly connected with a guide bucket 11 located just below the lower end of the guide groove 10. The shot blasting agent falling from the vibration box 6 will not contact the lower belt surface 4 of the conveyor belt 2 due to the obstruction of the cover plate 9, but will be diverted to the guide grooves 10 on both sides, and then move to the lower side, and finally fall into the guide bucket 11 for export. In the process, the vibration box 6 set can provide vibration to the upper belt surface 3 of the conveyor belt 2 at the bottom, so that the metal workpiece also vibrates accordingly, so that the contact efficiency between the metal workpiece and the shot blasting agent is higher, so that the surface treatment effect of the metal workpiece can be improved accordingly, and the problem that the conveyor belt 2 in the prior art is in a relatively stable conveying state may lead to unsatisfactory surface treatment effect of the metal workpiece is solved.

[0026] like Figures 1-5As shown, in a more detailed scheme, a vibration rod 12 is fixedly connected to the bottom of the vibration box 6. The vibration rod 12 can be square (i.e., the cross section is square). A vibration hole 13 is provided on the casing 1 for the vibration rod 12 to pass through. The vibration hole 13 has a height and a width greater than the size of the vibration rod 12. The vibration rod 12 passes through the casing 1 and extends outside the casing 1 and is connected to a vibration motor 15. A support plate 14 for supporting the vibration rod 12 is also fixedly connected to the outside of the casing 1. Vibration holes 13 are respectively provided on both sides of the casing 1 for the two ends of the vibration rod 12 to pass through. Providing vibration support enables the vibration box 6 to be arranged in the housing 1, and the vibration rod 12 and the corresponding vibration motor 15 can be two groups located at both ends of the vibration box 6. Initially, the vibration rod 12 is lifted on the support plate 14, and the upper plate surface of the support plate 14 is flush with the inner bottom surface of the vibration hole 13. When the vibration motor 15 is running, the vibration rod 12 vibrates and vibrates with a limited amplitude within the height range of the vibration hole 13, so as to avoid excessive vibration amplitude causing most of the metal workpieces to be bounced out of the vibration box 6. More specifically, the conveyor Flexible skirts of the same material as the belt 2 (usually rubber) can be set on both sides of the belt 2 to prevent metal workpieces from escaping outward during small-amplitude vibrations. In further detail, when the conveyor belt 2 passes through the vibration box 6, the two sides of the vibration box 6 are higher than the two sides of the conveyor belt 2, and the gap between the two sides of the conveyor belt 2 and the inner walls of the two sides of the vibration box 6 is small, so that the vibration box 6 also plays a protective role to prevent metal workpieces from vibrating out of the vibration box 6; in a further scheme, in order to improve the stability of the vibration operation, a guide hole is set on the support plate 14, and the vibration The movable rod 12 is also fixedly connected to a guide rod 16 that slides downward through the guide hole. The lower end of the guide rod 16 is also fixedly connected to a limit plate 17. The size of the limit plate 17 is larger than the guide hole to ensure that the guide rod 16 does not separate upward from the support plate 14. The set guide rod 16 makes the vibration in the vertical direction under the guidance of the guide hole; in a more detailed scheme, the guide rod 16 set at one end of the vibration rod 12 can be a pair (the corresponding guide holes are also a pair), and they are jointly connected to a limit plate 17, so that the guidance can be smoother.

[0027] like Figure 1 , 3 As shown, in the detailed scheme, the cover plate 9 includes a middle section 18 which is convex and has an arc-shaped top surface, and side sections 19 which are fixedly connected to both sides of the middle section 18 and extend obliquely upward in opposite directions. The two side sections 19 are respectively combined with the middle section 18 to form a guide groove 10, and the higher end of the side section 19 is also fixedly connected to the inner wall of the casing 1, that is, the middle position of the cover plate 9 is an upward convex arc, so that the shot blasting agent falling on it can be diverted to both sides, and the oblique upward extension of the two sides forms the guide groove 10, and the lower belt surface 4 of the conveyor belt 2 passes through the arc-shaped middle section 18. It should be further noted that the lower end of the guide groove 10 is lower than the lower belt surface 4 of the conveyor belt 2, so as to ensure that the shot blasting agent does not fall on the lower belt surface 4 of the conveyor belt 2.

[0028] As shown Figure 1 , 4 and 5, in a further detailed solution, an installation groove 20 is fixedly connected to the bottom surface of the notch 7. A first roller 21 is rotatably installed in the installation groove 20, and the upper belt surface 3 of the conveyor belt 2 is in contact with the first roller 21. The provided first roller 21 vibrates as the vibration box 6 vibrates, providing rotational support for the upper belt surface 3 of the conveyor belt 2 at both ends of the vibration box 6, so that the upper belt surface 3 also vibrates. During the process, the conveyor belt 2 is made of a flexible material, and the vibration may not be obvious. Therefore, in this solution, a plurality of vertical plates 22 extending upward are fixedly connected to the inner bottom surface of the vibration box 6. The top end of each vertical plate 22 is fixedly connected to an upwardly convex arc-shaped plate 23, and the upper belt surface 3 of the conveyor belt 2 is in contact with the top end of the arc-shaped plate 23. The vertical plates 22 and the arc-shaped plates 23 also vibrate as the vibration box 6 vibrates and are arranged at equal intervals along the conveying direction of the conveyor belt 2. In this way, in cooperation with the first rollers 21 at both ends, the upper belt surface 3 of the conveyor belt 2 vibrates smoothly with a small amplitude as the vibration box 6 vibrates (it is precisely because of the flexible conveyor belt 2 and the height limit of the vibration holes 13 that the small-amplitude vibration can be realized); more specifically, an arc-shaped plate 23 is provided at the upper end of the vertical plate 22, which can enable the upper belt surface 3 of the conveyor belt 2 to contact the arc-shaped plate 23 over a larger area, so as to avoid impacting the upper belt surface 3 of the conveyor belt 2. At the same time, some shot blasting machines passing through the conveyor belt 2 will also impact the arc-shaped plate 23 and then rebound (while impacting, the arc-shaped plate 23 is also vibrating, so the rebounding force is relatively enhanced). After rebounding, it can impact the bottom surface of the upper belt surface 3 of the conveyor belt 2 again, so that the upper belt surface 3 of the conveyor belt 2 can generate a small-amplitude vibration, further improving the processing efficiency; the provided arc-shaped plate 23 can also be an inverted V-shaped structure with an arc-shaped top end.

[0029] As shown Figure 1 , 4As shown in the figure, at both ends of the casing 1, there are respectively provided a first inlet 24 and a first outlet 25 for the upper belt surface 3 of the conveyor belt 2 to pass through, and a second inlet 26 and a second outlet 27 for the lower belt surface 4 of the conveyor belt 2 to pass through respectively, which provides a passage for the conveyor belt 2 to pass through. The first inlet 24 and the first outlet 25 are provided with a relatively large height to facilitate the entry and exit of metal workpieces with the upper belt surface 3 of the conveyor belt 2 into and out of the casing 1. More specifically, a soft curtain 28 is fixedly connected to the top surface of the first inlet 24 and the first outlet 25, and the soft curtain 28 extends downward and is separated from the conveyor belt 2. The soft curtain 28 provided can play a certain role in isolating the operation, preventing a large amount of dust generated during the operation from leaking out, and at the same time not affecting the normal entry and exit of metal workpieces; in a further solution, an air inlet pipe 29 and an air outlet pipe 30 are respectively fixedly connected to both ends of the casing 1. The air inlet pipe 29 and the air outlet pipe 30 are respectively connected with a blower and an exhaust fan. The blower sends air into the casing 1, and the exhaust fan extracts the air flow in the casing 1. The generated dust will also be carried out during the whole process, so as to better prevent the dust from leaking out. A dust removal device can be connected behind the exhaust fan to process the dust; in a further solution, a second idler 31 is rotatably installed on the bottom surface of the first inlet 24 and the first outlet 25, the upper belt surface 3 of the conveyor belt 2 contacts the second idler 31, a third idler 32 is rotatably installed on the bottom surface of the second inlet 26 and the second outlet 27, and the lower belt surface 4 of the conveyor belt 2 contacts the third idler 32. The second idler 31 and the third idler 32 provided provide rolling support for the conveyor belt 2 at the corresponding positions, so that the conveyor belt 2 runs more stably.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A conveying shot blasting treatment system, characterized in that, It includes a casing. At both ends facing each other of the casing, a conveyor belt with an annular structure is penetrated and arranged. A plurality of shot blasting ejectors are also fixedly installed on the casing. The shot blasting ejectors have shot blasting ejection openings located inside the casing and facing the upper surface of the conveyor belt. A vibration box is also arranged inside the casing. The upper surface of the conveyor belt passes through the vibration box, and the lower surface is located below the vibration box. The top surface of the vibration box is open, and a number of through holes are opened on the bottom surface. A cover plate is also fixedly arranged inside the casing below the vibration box and covering above the lower surface of the conveyor belt. Flow guiding grooves are respectively arranged on both sides of the cover plate, and one end of the two flow guiding grooves is high and the other end is low. A discharge hopper is also fixedly connected to the bottom of the casing directly below the low end of the flow guiding groove.

2. The conveying shot blasting treatment system according to claim 1, wherein A vibration rod is fixedly connected to the bottom of the vibration box. The vibration rod passes through the casing and extends to the outside of the casing and is connected with a vibration motor. A support plate for supporting the vibration rod is also fixedly connected outside the casing.

3. The conveying shot blasting treatment system according to claim 2, wherein A guiding hole is arranged on the support plate. The vibration rod is also fixedly connected with a guiding rod that slides downward through the guiding hole. A limiting plate is also fixedly connected to the lower end of the guiding rod.

4. The conveying shot blasting treatment system according to claim 1, wherein, The cover plate includes a middle section that protrudes upward and has an arc-shaped top surface, and side sections fixedly connected to both sides of the middle section and extending obliquely upward in opposite directions. The two side sections and the middle section jointly enclose the flow guiding groove, and the higher end of the side section is also fixedly connected to the inner wall of the casing.

5. The conveying shot blasting treatment system according to claim 1, wherein At both ends facing each other of the vibration box along the extending direction of the conveyor belt, through notches are respectively recessed. The bottom surface of the through notches is fixedly connected with an installation groove. A first supporting roller is rotatably installed in the installation groove, and the upper surface of the conveyor belt contacts the first supporting roller.

6. The conveying shot blasting treatment system according to claim 1, characterized in that An upright plate extending upward is fixedly connected to the inner bottom surface of the vibration box. The top end of the upright plate is fixedly connected with a convex arc-shaped plate, and the upper surface of the conveyor belt contacts the top end of the arc-shaped plate.

7. The conveying shot blasting treatment system according to claim 1, wherein At both ends of the casing, a first inlet and a first outlet for the upper surface of the conveyor belt to pass through are respectively arranged, and a second inlet and a second outlet for the lower surface of the conveyor belt to pass through are respectively arranged.

8. The conveying type shot blasting treatment system according to claim 7, wherein, Soft curtains are fixedly connected to the top surfaces of the first inlet and the first outlet, and the soft curtains extend downward and are separated from the conveyor belt.

9. The conveying type shot blasting treatment system according to claim 7, characterized in that Second supporting rollers are rotatably installed on the bottom surfaces of the first inlet and the first outlet. The upper surface of the conveyor belt contacts the second supporting rollers. Third supporting rollers are rotatably installed on the bottom surfaces of the second inlet and the second outlet. The lower surface of the conveyor belt contacts the third supporting rollers.

10. The conveying shot blasting treatment system according to any one of claims 1-9, characterized in that, An air inlet pipe and an air outlet pipe are also fixedly connected to the casing at both ends respectively. The air inlet pipe and the air outlet pipe are respectively connected with a blower and an exhaust fan.

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