Sand blasting equipment for casting surface burr treatment

Abstract

The invention relates to the technical field of sand blasting equipment, in particular to sand blasting equipment for casting surface burr treatment, which comprises a machine shell, a conveying belt arranged on the machine shell and used for conveying workpieces, and a plurality of sand blasting heads arranged at the top of the machine shell and used for carrying out sand blasting treatment on the workpieces on the conveying belt, the pneumatic cylinder and the sand blasting storage box are used for being connected with the sand blasting head, and the sand blasting equipment further comprises a distance adjusting mechanism, a driving limiting unit and a sand removing and cleaning mechanism. The distance adjusting mechanism is arranged on the top of the machine shell and located above the conveying belt. The distance adjusting mechanism comprises a movable horizontal block, a displacement block arranged on the movable horizontal block and used for installing a pneumatic cylinder and an undercarriage located below the displacement block. The driving limiting unit is arranged on the top of the machine shell and located on one side of the distance adjusting mechanism. According to the technical scheme, through cooperation between the distance adjusting mechanism and the driving limiting unit, the problem that uniform sand blasting treatment cannot be conveniently conducted on workpieces of different sizes is solved.

Description

Technical Field

[0001] The invention relates to the technical field of sandblasting equipment, in particular to sandblasting equipment for treating burrs on the surface of castings. Background Art

[0002] In the foundry industry, burrs and other defects often remain on the surface of castings after molding. Sandblasting is a widely used process to remove burrs on the surface of castings and improve the surface quality of castings.

[0003] Existing sandblasting equipment often faces a significant technical challenge when processing the same batch of workpieces: it is not easy to adjust the sandblasting process according to the different sizes of workpieces in the same batch. The effect of sandblasting is affected by many factors, including the type of sandblasting material, the size of the nozzle, the sandblasting pressure, the distance between the nozzle and the workpiece surface, and the sandblasting angle. For workpieces of different sizes, these factors need to be adjusted accordingly to ensure the uniformity and effectiveness of the sandblasting process.

[0004] However, existing sandblasting equipment often has many inconveniences when adjusting these parameters. For example, the nozzle size and sandblasting pressure are usually fixed and cannot be flexibly adjusted according to workpieces of different sizes. In addition, the distance between the nozzle and the workpiece surface and the sandblasting angle also need to be adjusted manually, which not only increases the difficulty of operation, but may also affect the accuracy and efficiency of the sandblasting process.

[0005] Chinese patent authorization announcement number CN118456296B is a sandblasting deburring equipment for steel casting processing. It adopts a technical solution of automatically replacing the sandblasting machine nozzle. The nozzle is automatically replaced without stopping the machine, reducing the operation time, and isolating the replacement space from the processing space, ensuring that the nozzle and its connecting parts are in good conditions during the replacement process, reducing equipment wear caused by dust entry, and automatically cleaning the inside of the workpiece after sandblasting is completed, thereby improving production efficiency.

[0006] However, in actual use of the above structure, since workpieces in the same batch have workpieces of different sizes, it is inconvenient to adjust the sandblasting for workpieces of different sizes when sandblasting, which leads to poor sandblasting effect. Summary of the invention

[0007] In view of the above problems, a sandblasting device for treating burrs on the surface of castings is provided, which solves the problem of inconvenience in effectively sandblasting workpieces of different sizes in the same batch through the coordinated cooperation between the spacing adjustment mechanism and the drive limiting unit.

[0008] In order to solve the problems of the prior art, the present invention provides a sandblasting device for treating burrs on the surface of a casting, comprising a casing, a conveyor belt arranged on the casing for conveying workpieces, a plurality of sandblasting heads arranged on the top of the casing and used for sandblasting the workpieces on the conveyor belt, and a pneumatic cylinder and a sandblasting storage box connected to the sandblasting heads, the sandblasting device also comprises a spacing adjustment mechanism, a drive limiting unit and a sand removal and cleaning mechanism; the spacing adjustment mechanism is arranged on the top of the casing and located above the conveyor belt, the spacing adjustment mechanism comprises a moving horizontal block, a displacement block arranged on the moving horizontal block and used for installing the pneumatic cylinder, and a landing gear located below the displacement block; the drive limiting unit is arranged on the top of the casing and located on one side of the spacing adjustment mechanism; the sand removal and cleaning mechanism is arranged on the top of the casing and located on one side of the conveyor belt, and the sand removal and cleaning mechanism can vibrate and remove sand and vibrate and clean the workpiece after the sandblasting treatment.

[0009] Preferably, the drive limiting unit includes a first linear drive, a screw, a guide rod and a bearing rod; the first linear drive is arranged on the top of the casing and above the conveyor belt; the screw is arranged at the output end of the first linear drive, and the screw is threadedly connected to the movable horizontal block; a plurality of equidistantly distributed limiting grooves are provided on the top of the casing, and the center lines of the limiting grooves are inclined relative to the center line of the conveyor belt; a linear groove is provided on the movable horizontal block; the guide rod is provided in the linear groove and is clearance-matched with the displacement block; the bearing rod is rotatably provided above the displacement block, and the bearing rod slides in the limiting groove.

[0010] Preferably, the drive limiting unit also includes a telescopic rod, a telescopic pipe, a second linear drive and a screw; the telescopic rod is arranged on the displacement block, and the telescopic rod is connected to the pneumatic cylinder; the telescopic pipe is arranged on the telescopic rod and is located below the displacement block, and the telescopic pipe is connected to the telescopic rod and the sandblasting head; the second linear drive is arranged at the bottom end of the moving horizontal block and is located above the conveyor belt; the screw is arranged at the output end of the second linear drive, and the landing gear is threadedly connected to the screw.

[0011] Preferably, the drive limiting unit also includes a displacement plate; a slot is opened on the landing gear, and the slot is in the shape of a rectangular parallelepiped; the displacement plate is horizontally slidably arranged in the slot, and the displacement plate is fixedly connected to the telescopic rod, and when the landing gear is raised or lowered, it can drive the telescopic rod to extend and retract and the displacement plate to rise and fall synchronously.

[0012] Preferably, the drive limiting unit also includes a telescopic cylinder and a movable plate; the telescopic cylinder is arranged on the displacement block and away from one side of the second linear drive; a sliding groove is opened on the displacement block; the movable plate is arranged at the output end of the telescopic cylinder, and the movable plate slides in the sliding groove.

[0013] Preferably, the sand removal and cleaning mechanism includes a recovery box, a vertical rod, a vibration frame and a return spring; the recovery box is arranged on the top of the casing and is located on one side of the conveyor belt; the vertical rod is arranged on the top of the recovery box and has multiple; the vibration frame is slidably arranged on the vertical rod, and the vibration frame is located on one side of the conveyor belt, and multiple avoidance grooves are opened on the vibration frame; the return spring is arranged on the vertical rod, one end of the return spring is fixedly connected to the vibration frame, and the other end of the return spring is fixedly connected to the vertical rod.

[0014] Preferably, the sand removal and cleaning mechanism also includes a rotating rod, a flexible plate and a first rotating driver; the rotating rod is arranged on the vibration frame and on a side away from the conveyor belt discharge port; the flexible plate is arranged on the rotating rod and is fixedly connected to the rotating rod; the first rotating driver is arranged on the vibration frame, and the output end of the first rotating driver is connected to the rotating rod.

[0015] Preferably, the sand removal and cleaning mechanism also includes a feed plate and a limiting roller; the feed plate is rotatably arranged on one side of the casing and located above the recovery box; the limiting roller is arranged on the casing and located on one side of the feed plate.

[0016] Preferably, the sand removal and cleaning mechanism also includes a cleaning box, a cleaning frame, a water tank, a spray pipe and a spray head; the cleaning box is arranged on the casing and is located on one side of the recovery box; the cleaning frame is slidably arranged in the cleaning box, and a plurality of through grooves for water supply are opened on the cleaning frame; the water tank is installed on the casing and is close to one side of the cleaning box; the spray pipe is arranged in the water tank, and the spray pipe is located above the cleaning frame; the spray head is arranged in the spray pipe, and a plurality of spray heads are evenly distributed along the setting direction of the spray pipe.

[0017] Preferably, the sand removal and cleaning mechanism also includes a mounting plate, a third rotary driver and an eccentric block; the mounting plate is arranged in the recovery box and below the vibration frame; the third rotary driver is arranged on the top of the mounting plate; and the eccentric block is arranged at the output end of the third rotary driver.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention realizes flexible sandblasting of workpieces of different sizes by setting the coordination between the spacing adjustment mechanism and the driving limiting unit, thereby solving the problem in the prior art that it is inconvenient to perform uniform sandblasting on workpieces of different sizes in the same batch.

[0019] 2. The present invention provides a driving limiting unit to achieve relatively distant or relatively close sliding of the sandblasting head connected to the pneumatic cylinder, and can evenly sandblast multiple workpieces placed on the conveyor belt.

[0020] 3. The present invention realizes secondary position adjustment of the sandblasting head after the spacing adjustment by arranging a telescopic cylinder and a movable plate, so that the sandblasting head can adapt to sandblasting workpieces of different sizes in the same batch.

[0021] 4. The present invention provides a sand removal and cleaning mechanism, which can vibrate and remove sand from the workpiece after sandblasting, while avoiding the situation where excess sand stays on the flexible plate and causes damage to the workpiece during vibration sand removal.

[0022] 5. The present invention provides a rotating rod, a flexible plate and a first rotating driver. When the rotating rod rotates, the flexible plate is driven to tilt. After the plate tilts, the workpiece after vibration sand removal can be discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural diagram of a sandblasting device for treating burrs on the surface of a casting according to the present invention from a first viewing angle.

[0024] Figure 2 The present invention is a front view structural diagram of a sandblasting device for treating burrs on the surface of a casting.

[0025] Figure 3 The invention discloses a side cross-sectional structural diagram of a sandblasting device for treating burrs on the surface of a casting.

[0026] Figure 4 It is a three-dimensional structural diagram of a sandblasting device for treating burrs on the surface of a casting according to the present invention under a second viewing angle.

[0027] Figure 5 The present invention is a three-dimensional structural diagram of a spacing adjustment mechanism and a driving limiting unit of a sandblasting device for treating burrs on the surface of a casting.

[0028] Figure 6 The present invention is a front view structural diagram of a movable horizontal block and a sandblasting head of a sandblasting device for treating burrs on the surface of a casting.

[0029] Figure 7 It is a three-dimensional structural diagram of a sandblasting device for treating burrs on the surface of a casting according to the present invention, in which the displacement blocks are relatively far away and the moving horizontal block is in a sliding state.

[0030] Figure 8 It is a three-dimensional structural diagram of a flexible plate of a sandblasting device for treating burrs on the surface of a casting according to the present invention in an inclined state.

[0031] Fig. 9 The present invention is a three-dimensional structural diagram of a sand removal and cleaning mechanism of a sand blasting device for treating burrs on the surface of a casting.

[0032] Fig.10 The present invention is a partially cutaway stereoscopic structural diagram of a sandblasting device for treating burrs on the surface of a casting.

[0033] Fig.11 yes Fig.10 Enlarged structural diagram at point B in the middle.

[0034] Fig.12 yes Figure 3 Enlarged structural diagram at point A in the middle.

[0035] Fig.13 The present invention is a partial cross-sectional structural diagram of a sandblasting device for treating burrs on the surface of a casting.

[0036] Fig.14 It is a three-dimensional structural diagram of a displacement plate of a sandblasting device for treating burrs on the surface of a casting according to the present invention.

[0037] The numbers in the figure are: 1, housing; 11, limiting groove; 2, conveyor belt; 3, sandblasting head; 4, pneumatic cylinder; 5, sandblasting storage box; 51, connecting pipe; 6, spacing adjustment mechanism; 61, moving horizontal block; 611, linear groove; 62, displacement block; 63, landing gear; 7, driving limiting unit; 71, first linear drive; 72, screw rod; 73, guide rod; 74, bearing rod; 75, telescopic rod; 76, telescopic pipe; 77, second linear drive; 78, screw rod; 79 , displacement plate; 791, telescopic cylinder; 792, moving plate; 8, sand removal and cleaning mechanism; 81, recovery box; 82, vertical rod; 83, vibration frame; 84, return spring; 85, rotating rod; 86, flexible plate; 87, first rotary drive; 88, unloading plate; 89, limiting roller; 891, cleaning box; 892, cleaning frame; 893, water tank; 894, spray pipe; 895, spray head; 896, mounting plate; 897, third rotary drive; 898, eccentric block. DETAILED DESCRIPTION

[0038] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0039] See also Figure 1-Figure 5 As shown, a sandblasting device for treating burrs on the surface of a casting comprises a casing 1, a conveyor belt 2 arranged on the casing 1 for conveying workpieces, a plurality of sandblasting heads 3 arranged on the top of the casing 1 and used for sandblasting the workpieces on the conveyor belt 2, and a pneumatic cylinder 4 and a sandblasting storage box 5 connected to the sandblasting heads 3. The sandblasting device also comprises a spacing adjustment mechanism 6, a drive limiting unit 7 and a sand removal and cleaning mechanism 8; the spacing adjustment mechanism 6 is arranged on the top of the casing 1 and located above the conveyor belt 2, the spacing adjustment mechanism 6 comprises a moving horizontal block 61, a displacement block 62 arranged on the moving horizontal block 61 and used for installing the pneumatic cylinder 4, and a landing gear 63 located below the displacement block 62; the drive limiting unit 7 is arranged on the top of the casing 1 and located on one side of the spacing adjustment mechanism 6; the sand removal and cleaning mechanism 8 is arranged on the top of the casing 1 and located on one side of the conveyor belt 2, and the sand removal and cleaning mechanism 8 can vibrate and remove sand and vibrate and clean the workpiece after sandblasting.

[0040] The sandblasting storage box 5 is connected to the pneumatic cylinder 4 through a telescopic hose. The pneumatic cylinder 4 is provided with a connecting pipe 51 connected to the sandblasting head 3. The connecting pipe 51 is preferably a universal bamboo tube. The universal bamboo tube has a telescopic function to ensure the stable transportation of the sandblasting raw materials. When the workpiece needs to be sandblasted, the workpiece is first placed on the conveyor belt 2 stably by a mechanical arm or manually. The loading method is preferably a mechanical arm, which can improve the loading efficiency of the workpiece and reduce the labor time of the workers. The conveyor belt 2 is started to transport the workpiece on the conveyor belt 2. When the workpiece is located on the conveyor belt 2, the driving limiting unit 7 is used to drive the moving horizontal block 61 to slide. When the moving horizontal block 61 slides, the driving limiting unit 7 can drive the pneumatic cylinder 4 installed on the displacement block 62 to slide, so that the multiple sandblasting heads 3 on the displacement block 62 slide relatively far away, which can adapt to workpieces of different sizes for sandblasting. By driving the landing gear 63 to rise or fall in the vertical direction, the sandblasting head 3 can be controlled to slide closer to or farther from the conveyor belt 2, so that the workpiece can be evenly sandblasted. When the workpieces are of different sizes and need to be sandblasted, the air cylinder 4 can be driven by the limiting unit 7 to adjust the position, so that the single air cylinder 4 and the sandblasting head 3 after the spacing adjustment can be adjusted separately, and the sandblasting of workpieces of different sizes on the conveyor belt 2 can be adjusted separately. Flexible sandblasting of workpieces of different sizes is achieved, solving the problem that it is inconvenient to evenly sandblast workpieces of different sizes in the same batch in the prior art.

[0041] See also Figure 5-Figure 7 As shown, the driving and limiting unit 7 includes a first linear drive 71, a screw 72, a guide rod 73 and a bearing rod 74; the first linear drive 71 is arranged at the top of the casing 1 and is located above the conveyor belt 2; the screw 72 is arranged at the output end of the first linear drive 71, and the screw 72 is threadedly connected to the movable horizontal block 61; a plurality of equidistantly distributed limiting grooves 11 are provided on the top of the casing 1, and the center line of the limiting groove 11 is inclined relative to the center line of the conveyor belt 2; a linear groove 611 is provided on the movable horizontal block 61; the guide rod 73 is arranged in the linear groove 611 and is clearance-matched with the displacement block 62; the bearing rod 74 is rotatably arranged above the displacement block 62, and the bearing rod 74 is located in the limiting groove 11 and slides. When the movable horizontal block 61 moves, the bearing rod 74 can slide in the limiting groove 11 and drive the rotationally connected displacement block 62 to slide horizontally along the guide rod 73.

[0042] When it is necessary to drive the movable horizontal block 61 to move, first the first linear drive 71 is started and drives the screw rod 72 to rotate. When the screw rod 72 rotates, it can drive the movable horizontal block 61 to slide horizontally. When the movable horizontal block 61 slides, it can drive the displacement block 62 slidably arranged on the movable horizontal block 61 to slide. Since a bearing rod 74 is rotatably arranged on the displacement block 62, and the bearing rod 74 cooperates with the groove between the limiting groove 11 opened on the top of the casing 1, when the movable horizontal block 61 moves, it can drive the bearing rod 74 to rotate and slide along the limiting groove 11, and slide relatively away. In this process, the bearing rod 74 can be synchronously moved along the guide rod 73 by the rotationally connected displacement block 62. When the displacement block 62 moves, it can drive the pneumatic cylinder 4 arranged on the displacement block 62 to move synchronously, thereby realizing the sliding of the sandblasting head 3 connected to the pneumatic cylinder 4 relatively away or relatively close, and multiple workpieces placed on the conveyor belt 2 can be evenly sandblasted.

[0043] See also Figure 3 and Figure 5 As shown, the drive limiting unit 7 also includes a telescopic rod 75, a telescopic pipe 76, a second linear drive 77 and a screw 78; the telescopic rod 75 is arranged on the displacement block 62, and the telescopic rod 75 is connected to the pneumatic cylinder 4; the telescopic pipe 76 is arranged on the telescopic rod 75 and is located below the displacement block 62, and the telescopic pipe 76 is connected to the telescopic rod 75 and the sandblasting head 3; the second linear drive 77 is arranged at the bottom end of the moving horizontal block 61 and is located above the conveyor belt 2; the screw 78 is arranged at the output end of the second linear drive 77, and the landing gear 63 is threadedly connected to the screw 78, and when the screw 78 rotates, it can drive the landing gear 63 to be in a sliding state in the direction of approaching or moving away from the conveyor belt 2.

[0044] The telescopic rod 75 is hollow and allows sandblasting to pass through. When the position of the sandblasting head 3 needs to be lowered, the second linear drive 77 is first started and drives the screw rod 78 to rotate. When the screw rod 78 rotates, it can drive the threaded landing gear 63 to move downward. When the landing gear 63 moves downward, it will not drive the displacement block 62 to move synchronously.

[0045] See also Fig.14 As shown, the drive limiting unit 7 also includes a displacement plate 79; a slot is opened on the landing gear 63, and the slot is in the shape of a rectangular parallelepiped; the displacement plate 79 is horizontally slidably set in the slot, and the displacement plate 79 is fixedly connected to the telescopic rod 75. When the landing gear 63 is raised or lowered, it can drive the telescopic rod 75 to extend and retract and the displacement plate 79 to be raised or lowered synchronously.

[0046] When the landing gear 63 moves downward in the vertical direction, it can drive the displacement plate 79 slidingly arranged in the slot to descend synchronously. A plurality of balls are arranged on the displacement plate 79, and the balls are in contact with the slot, so that the displacement plate 79 slides more smoothly. Since the displacement plate 79 is fixedly provided with a telescopic rod 75, and the telescopic rod 75 is connected to the pneumatic cylinder 4, and the telescopic rod 75 is located below the displacement plate 79 and fixedly connected to the sandblasting head 3, the telescopic rod 75 can be driven to be stretched when the landing gear 63 moves downward. When the displacement block 62 slides along the guide rod 73, the pneumatic cylinder 4 arranged on the displacement block 62 can drive the telescopic rod 75 and the displacement plate 79 to slide along the landing gear 63, so that the setting of the displacement plate 79 does not affect the normal use of the sandblasting head 3.

[0047] See also Figure 6 and Figure 7 As shown, the drive limiting unit 7 also includes a telescopic cylinder 791 and a movable plate 792; the telescopic cylinder 791 is arranged on the displacement block 62 and away from the side of the second linear drive 77; a sliding groove is opened on the displacement block 62; the movable plate 792 is arranged at the output end of the telescopic cylinder 791, and the movable plate 792 is located in the sliding groove and slides. When the movable plate 792 moves, it can slide in the sliding groove and drive the pneumatic cylinder 4 to move synchronously.

[0048] Since the sizes of the workpieces in the same batch are different, when the sandblasting head 3 after the spacing adjustment needs to be adjusted, the telescopic cylinder 791 set on the displacement block 62 is started, and then the telescopic cylinder 791 drives the moving plate 792 to slide horizontally along the sliding groove, thereby driving the pneumatic cylinder 4 connected to the conveying end of the telescopic cylinder 791 to move synchronously. When the pneumatic cylinder 4 moves, it can drive the telescopic rod 75, the telescopic pipe 76 and the displacement plate 79 to move synchronously, thereby realizing a secondary position adjustment of the sandblasting head 3 after the spacing adjustment, so that the sandblasting head 3 can adapt to the sandblasting of workpieces of different sizes to be sandblasted in the same batch for sandblasting.

[0049] See also Figure 8-Figure 10 As shown, the sand removal and cleaning mechanism 8 includes a recovery box 81, a vertical rod 82, a vibration frame 83 and a return spring 84; the recovery box 81 is arranged on the top of the casing 1 and is located on one side of the conveyor belt 2; the vertical rod 82 is arranged on the top of the recovery box 81 and has multiple; the vibration frame 83 is slidably arranged on the vertical rod 82, and the vibration frame 83 is located on one side of the conveyor belt 2, and multiple avoidance grooves are opened on the vibration frame 83; the return spring 84 is arranged on the vertical rod 82, one end of the return spring 84 is fixedly connected to the vibration frame 83, and the other end of the return spring 84 is fixedly connected to the vertical rod 82.

[0050] The workpiece after sandblasting is continuously conveyed by the conveyor belt 2 until the workpiece falls into the vibration frame 83, and then the vibration frame 83 vibrates. When the vibration frame 83 vibrates, it can slide back and forth along the vertical rod 82 with clearance fit, thereby being able to vibrate and remove sand from the workpiece that falls into the vibration frame 83.

[0051] See also Figure 8 As shown, the sand removal and cleaning mechanism 8 also includes a rotating rod 85, a flexible plate 86 and a first rotating driver 87; the rotating rod 85 is arranged on the vibration frame 83 and is away from the side of the discharge port of the conveyor belt 2; the flexible plate 86 is arranged on the rotating rod 85 and is fixedly connected to the rotating rod 85; the first rotating driver 87 is arranged on the vibration frame 83, and the output end of the first rotating driver 87 is connected to the rotating rod 85. When the rotating rod 85 rotates, it can drive the flexible plate 86 to be in an inclined and flipped state away from the conveyor belt 2, so that the workpiece on the flexible plate 86 falls off.

[0052] When the vibration frame 83 vibrates, it can drive the flexible plate 86 set in the vibration frame 83 to vibrate synchronously. The flexible plate 86 is made of a polymer shock-absorbing material, which can effectively reduce the damage caused to the workpiece during the vibration process on the flexible plate 86, and the flexible plate 86 is provided with multiple drop grooves for sandblasting to pass through. After vibration sand removal, the sandblasting on the surface of the workpiece will fall into the collection box through the drop grooves provided on the flexible plate 86, and the excess sandblasting can be collected. It is avoided that the excess sandblasting stays on the flexible plate 86 and causes damage to the workpiece during vibration sand removal. After vibration sand removal, the first rotary driver 87 starts and drives the rotating rod 85 to rotate. When the rotating rod 85 rotates, it drives the flexible plate 86 to tilt, and after tilting, the workpiece after vibration sand removal can be discharged.

[0053] See also Figure 10-12 As shown, the sand removal and cleaning mechanism 8 also includes a discharge plate 88 and a limiting roller 89; the discharge plate 88 is rotatably set on one side of the casing 1 and is located above the recovery box 81; the limiting roller 89 is set on the casing 1 and is located on one side of the discharge plate 88. When the workpiece passes through the discharge plate 88 and the vibration frame 83 starts to vibrate, the discharge plate 88 can contact the vibration frame 83 and be in a slight vibrating state, ensuring that the workpiece passes through the discharge plate 88 smoothly and falls onto the flexible plate 86.

[0054] When the workpiece falls on the conveyor belt 2, it can be discharged stably along the discharge plate 88, and the vibration frame 83 can intermittently contact the discharge plate 88 when vibrating. When in contact, the discharge plate 88 can perform intermittent reciprocating tilting and rotating motion, which can make the workpiece on the conveyor belt 2 fall stably into the vibration frame 83 through the discharge plate 88, effectively avoiding the accumulation or congestion of the workpiece inside the vibration frame 83, thereby ensuring the uniform distribution and efficient processing of the workpiece during vibration sand removal or similar treatment processes.

[0055] See also Fig. 9 and Fig.10 As shown, the sand removal and cleaning mechanism 8 also includes a cleaning box 891, a cleaning frame 892, a water tank 893, a spraying pipe 894 and a spraying head 895; the cleaning box 891 is arranged on the casing 1 and is located on one side of the recovery box 81; the cleaning frame 892 is slidably arranged in the cleaning box 891, and a plurality of through grooves for water to pass through are opened on the cleaning frame 892; the water tank 893 is installed on the casing 1 and is close to one side of the cleaning box 891; the spraying pipe 894 is arranged in the water tank 893, and the spraying pipe 894 is located above the cleaning frame 892; the spraying head 895 is arranged in the spraying pipe 894, and a plurality of the spraying heads 895 are evenly distributed along the setting direction of the spraying pipe 894.

[0056] A submersible water pump is provided in the water tank 893, and the submersible water pump delivers the water inside the water tank 893 to the spray head 895 through the spray pipe 894, so that the sandblasting head 3 can spray the workpieces that fall into the cleaning frame 892. A second vertical rod 82 and a second return spring 84 are provided on the cleaning box 891, and the cleaning frame 892 can slide in the vertical direction along the second vertical rod 82, because the cleaning frame 892 is fixedly connected to the vibration frame 83. When the vibration frame 83 vibrates, it can drive the cleaning frame 892 to vibrate slightly. After sand removal, the workpiece can fall into the cleaning frame 892 through the inclination of the flexible plate 86. In the initial state, the water level in the cleaning box 891 is above half of the cleaning frame 892, and then the submersible water pump in the water tank 893 is started, and then the water in the water tank 893 is delivered to the spray head 895 through the spray pipe 894, and the spray head 895 sprays and cleans the workpieces in the cleaning frame 892. The cleaning effect of the workpiece after sand removal is improved. A heating mechanism can also be provided on the cleaning box 891. The heating mechanism is started after cleaning. The heating mechanism is preferably a heating fan, which is provided on the side wall of the cleaning box 891 and away from the side of the recovery box 81. The heating fan can blow hot air to the cleaning frame 892, thereby quickly drying the workpiece in the cleaning frame 892 after cleaning.

[0057] See also Fig.11 As shown, the sand removal and cleaning mechanism 8 also includes a mounting plate 896, a third rotary driver 897 and an eccentric block 898; the mounting plate 896 is arranged in the recovery box 81 and is located below the vibration frame 83; the third rotary driver 897 is arranged at the top of the mounting plate 896; the eccentric block 898 is arranged at the output end of the third rotary driver 897, and when the eccentric block 898 rotates, it can intermittently contact the vibration frame 83, driving the vibration frame 83 to be in a reciprocating lifting state.

[0058] When the vibration frame 83 needs to be vibrated, the third rotation driver 897 is started first. When the third rotation driver 897 is started, the eccentric block 898 is driven to rotate. When the eccentric block 898 rotates, it can intermittently act on the contacted vibration frame 83, thereby realizing reciprocating vibration processing of the vibration frame 83.

[0059] Working principle: When it is necessary to drive the movable horizontal block 61 to move, the first linear drive 71 starts and drives the screw 72 to rotate, driving the movable horizontal block 61 to slide horizontally. The displacement block 62 on the movable horizontal block 61 slides accordingly, and the bearing rod 74 rotating on the displacement block 62 rotates and slides in the limiting groove 11 at the top of the housing 1 to achieve relatively distant movement. At the same time, the displacement block 62 moves synchronously through the guide rod 73, driving the pneumatic cylinder 4 and the connected sandblasting head 3 to move relatively away from or close to the workpiece on the conveyor belt 2 to achieve uniform sandblasting. The telescopic rod 75 is hollow for sandblasting. When the position of the sandblasting head 3 needs to be lowered, the second linear drive 77 starts, drives the screw 78 to rotate, and makes the threaded landing gear 63 descend, while not driving the displacement block 62 to move. When the landing gear 63 descends, it drives the displacement plate 79 and the ball bearing thereon to slide smoothly along the notch, stretching the telescopic rod 75 connected to the pneumatic cylinder 4. When the displacement block 62 slides along the guide rod 73, the pneumatic cylinder 4 drives the telescopic rod 75, the telescopic pipe 76 and the displacement plate 79 to slide along, without affecting the use of the sandblasting head 3. For the different sizes of the workpieces in the same batch, the telescopic cylinder 791 is started to drive the moving plate 792 to slide horizontally along the sliding groove, and then adjust the position of the pneumatic cylinder 4, the telescopic rod 75 and the sandblasting head 3 to adapt to workpieces of different sizes. After sandblasting, the workpiece is conveyed to the vibration frame 83 by the conveyor belt 2, and the vibration frame 83 reciprocates along the vertical rod 82 for vibration sand removal. The flexible plate 86 reduces the damage to the workpiece, and the drop groove on it allows the sandblasting to fall into the collection box. After vibration sand removal, the first rotary driver 87 is started to drive the flexible plate 86 to tilt the material. The workpiece on the conveyor belt 2 is stably discharged along the unloading plate 88 to avoid accumulation. In the cleaning stage, the submersible water pump in the water tank 893 supplies water to the spray head 895 through the spray pipe 894, and the workpiece in the cleaning frame 892 is sprayed and cleaned. The cleaning frame 892 vibrates slightly with the vibration frame 83 to improve the cleaning effect. The heating fan is used as a heating mechanism to quickly air dry the workpiece after cleaning. The vibration of the vibration frame 83 is achieved by the third rotary driver 897 driving the eccentric block 898 to rotate, realizing reciprocating vibration processing.

[0060] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A sandblasting device for treating burrs on the surface of a casting, comprising a housing (1), a conveyor belt (2) arranged on the housing (1) for conveying workpieces, a plurality of sandblasting heads (3) arranged on the top of the housing (1) and used for sandblasting the workpieces on the conveyor belt (2), and a pneumatic cylinder (4) and a sandblasting storage box (5) for connecting to the sandblasting heads (3), characterized in that: The sandblasting device also includes a spacing adjustment mechanism (6), a drive limiting unit (7) and a sand removal and cleaning mechanism (8); The spacing adjustment mechanism (6) is arranged on the top of the housing (1) and is located above the conveyor belt (2), and the spacing adjustment mechanism (6) comprises a movable horizontal block (61), a displacement block (62) arranged on the movable horizontal block (61) and used to install the pneumatic cylinder (4), and a landing gear (63) located below the displacement block (62); The drive limiting unit (7) is arranged on the top of the housing (1) and is located on one side of the spacing adjustment mechanism (6); The sand removal and cleaning mechanism (8) is arranged on the top of the housing (1) and located on one side of the conveyor belt (2), and the sand removal and cleaning mechanism (8) can perform vibration sand removal and vibration cleaning on the workpiece after the sandblasting treatment.

2. The sandblasting equipment for treating burrs on the surface of castings according to claim 1, characterized in that: The driving and limiting unit (7) comprises a first linear drive (71), a screw (72), a guide rod (73) and a bearing rod (74); the first linear drive (71) is arranged at the top of the housing (1) and is located above the conveyor belt (2); the screw (72) is arranged at the output end of the first linear drive (71), and the screw (72) is threadedly connected to the movable horizontal block (61); a plurality of equally spaced limiting grooves (11) are formed on the top of the housing (1), and the center lines of the limiting grooves (11) are axially spaced relative to the conveyor belt (2). The movable horizontal block (61) is provided with a linear groove (611); the guide rod (73) is arranged in the linear groove (611) and is clearance-matched with the displacement block (62); the bearing rod (74) is rotatably arranged above the displacement block (62), and the bearing rod (74) is located in the limiting groove (11) and slides. When the movable horizontal block (61) moves, the bearing rod (74) can slide in the limiting groove (11) and drive the rotatably connected displacement block (62) to slide horizontally along the guide rod (73).

3. The sandblasting equipment for treating burrs on the surface of castings according to claim 2, characterized in that: The drive limiting unit (7) further comprises a telescopic rod (75), a telescopic pipe (76), a second linear drive (77) and a screw (78); the telescopic rod (75) is arranged on the displacement block (62), and the telescopic rod (75) is connected to the pneumatic cylinder (4); the telescopic pipe (76) is arranged on the telescopic rod (75) and is located below the displacement block (62), and the telescopic pipe (76) is connected to the telescopic rod (75) and the sandblasting head (3); the second linear drive (77) is arranged at the bottom end of the movable horizontal block (61) and is located above the conveyor belt (2); the screw (78) is arranged at the output end of the second linear drive (77), and the landing gear (63) is threadedly connected to the screw (78), and when the screw (78) rotates, it can drive the landing gear (63) to be in a sliding state in a direction close to or away from the conveyor belt (2).

4. The sandblasting equipment for treating burrs on the surface of castings according to claim 1, characterized in that: The driving limiting unit (7) further comprises a displacement plate (79); a notch is provided on the landing gear (63), and the notch is in the shape of a rectangular parallelepiped; the displacement plate (79) is horizontally slidably arranged in the notch, and the displacement plate (79) is fixedly connected to the telescopic rod (75), and when the landing gear (63) is raised or lowered, the telescopic rod (75) can be driven to be extended or retracted and the displacement plate (79) can be driven to be raised or lowered synchronously.

5. The sandblasting equipment for treating burrs on the surface of castings according to claim 1, characterized in that: The drive limiting unit (7) further comprises a telescopic cylinder (791) and a moving plate (792); the telescopic cylinder (791) is arranged on a side of the displacement block (62) away from the second linear drive (77); a sliding groove is provided on the displacement block (62); the moving plate (792) is arranged at the output end of the telescopic cylinder (791), and the moving plate (792) is located in the sliding groove and slides; when the moving plate (792) moves, it can slide in the sliding groove and drive the pneumatic cylinder (4) to move synchronously.

6. The sandblasting equipment for treating burrs on the surface of castings according to claim 1, characterized in that: The sand removal and cleaning mechanism (8) comprises a recovery box (81), a vertical rod (82), a vibration frame (83) and a return spring (84); the recovery box (81) is arranged on the top of the housing (1) and located on one side of the conveyor belt (2); the vertical rod (82) is arranged on the top of the recovery box (81) and has a plurality of vibration frames (83); the vibration frame (83) is slidably arranged on the vertical rod (82), and the vibration frame (83) is located on one side of the conveyor belt (2), and a plurality of avoidance grooves are provided on the vibration frame (83); the return spring (84) is arranged on the vertical rod (82), one end of the return spring (84) is fixedly connected to the vibration frame (83), and the other end of the return spring (84) is fixedly connected to the vertical rod (82).

7. The sandblasting equipment for treating burrs on the surface of castings according to claim 6, characterized in that: The sand removal and cleaning mechanism (8) further comprises a rotating rod (85), a flexible plate (86) and a first rotating driver (87); the rotating rod (85) is arranged on the vibration frame (83) and is away from the side of the discharge port of the conveyor belt (2); the flexible plate (86) is arranged on the rotating rod (85) and is fixedly connected to the rotating rod (85); the first rotating driver (87) is arranged on the vibration frame (83), and the output end of the first rotating driver (87) is connected to the rotating rod (85), and when the rotating rod (85) rotates, it can drive the flexible plate (86) to be in an inclined flipping state away from the conveyor belt (2), so that the workpiece on the flexible plate (86) falls off.

8. The sandblasting equipment for treating burrs on the surface of castings according to claim 7, characterized in that: The sand removal and cleaning mechanism (8) further comprises a feed plate (88) and a limiting roller (89); the feed plate (88) is rotatably arranged on one side of the housing (1) and is located above the recovery box (81); the limiting roller (89) is arranged on the housing (1) and is located on one side of the feed plate (88); when the workpiece passes through the feed plate (88) and the vibration frame (83) starts to vibrate, the feed plate (88) can contact the vibration frame (83) and be in a slight vibration state, thereby ensuring that the workpiece passes through the feed plate (88) smoothly and falls onto the flexible plate (86).

9. The sandblasting equipment for treating burrs on the surface of castings according to claim 8, characterized in that: The sand removal and cleaning mechanism (8) further comprises a cleaning box (891), a cleaning frame (892), a water tank (893), a spraying pipe (894) and a spraying head (895); the cleaning box (891) is arranged on the housing (1) and located on one side of the recovery box (81); the cleaning frame (892) is slidably arranged in the cleaning box (891), and a plurality of through slots for water to pass through are provided on the cleaning frame (892); the water tank (893) is installed on the housing (1) and close to one side of the cleaning box (891); the spraying pipe (894) is arranged in the water tank (893), and the spraying pipe (894) is located above the cleaning frame (892); the spraying head (895) is arranged on the spraying pipe (894), and a plurality of the spraying heads (895) are evenly distributed along the setting direction of the spraying pipe (894).

10. The sandblasting equipment for treating burrs on the surface of castings according to claim 9, characterized in that: The sand removal and cleaning mechanism (8) further comprises a mounting plate (896), a third rotating driver (897) and an eccentric block (898); the mounting plate (896) is arranged in the recovery box (81) and is located below the vibration frame (83); the third rotating driver (897) is arranged on the top of the mounting plate (896); the eccentric block (898) is arranged at the output end of the third rotating driver (897), and when the eccentric block (898) rotates, it can intermittently contact the vibration frame (83), thereby driving the vibration frame (83) to be in a reciprocating lifting state.

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