Graphite box automatic sand blasting cleaning machine

Abstract

The utility model discloses a kind of graphite box automatic sand blasting cleaning machines, belong to graphite box cleaning technical field, including rack, sand blasting chamber and the roller conveyor belt being set to be penetrated sand blasting chamber are set on the rack, sand blasting machine is fixedly installed on the rack outer side, parallel manipulator is fixedly installed on the rack and located in sand blasting chamber, visual positioning module is fixedly set on the parallel manipulator, sand blasting head and purge gas head are fixedly connected with sand blasting machine respectively by hose, sand blasting head and purge gas head are fixedly connected on parallel manipulator, sand collecting hopper is fixedly arranged on the rack and located below sand blasting chamber, sand blasting machine is connected with sand collecting hopper by sand return pipe.The utility model entire cleaning process does not need manual intervention, greatly reduce the labor intensity of operator, while avoiding that operator contacts dust generated in sand blasting process, protects the health of operator.

Description

Technical Field

[0001] This utility model belongs to the field of graphite box cleaning technology, specifically relating to an automatic sandblasting cleaning machine for graphite boxes. Background Technology

[0002] In the NdFeB production process, sintering is a crucial step. Graphite boxes, as vital containers supporting NdFeB products during sintering, are prone to developing oxide deposits on their inner walls after prolonged use. If these oxide deposits are not cleaned promptly, they directly impact the sintering quality of subsequent NdFeB products, leading to decreased product performance and a lower yield rate. Traditional graphite box cleaning methods rely heavily on manual labor, which is not only inefficient and labor-intensive but also produces inconsistent cleaning results, failing to meet the demands of large-scale, high-precision NdFeB production.

[0003] Therefore, it is necessary to develop a device that can automatically clean the oxide deposits on the inner wall of a graphite box to solve the above problems. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide an automatic sandblasting and cleaning machine for graphite boxes, which solves the technical problems of low efficiency, high labor intensity, unstable cleaning effect, serious waste of sand and gravel, and harm to the health of operators in the existing graphite box cleaning methods.

[0005] To achieve the above objectives, this utility model provides the following technical solution: This utility model provides an automatic graphite box sandblasting and cleaning machine, including a frame, a sandblasting chamber and a roller conveyor belt running through the sandblasting chamber on the frame, a sandblasting machine fixedly installed on the outside of the frame, a parallel manipulator located in the sandblasting chamber fixedly installed on the frame, a vision positioning module fixedly installed on the parallel manipulator, a sandblasting head and a blowing air head fixedly connected to the sandblasting machine through hoses, the sandblasting head and the blowing air head fixedly connected to the parallel manipulator, a sand collecting hopper fixedly installed on the frame below the sandblasting chamber, and the sandblasting machine connected to the sand collecting hopper through a sand return pipe.

[0006] Furthermore, the frame is provided with a feed inlet and a discharge outlet on opposite sides along the conveying direction of the roller conveyor belt, and dustproof doors capable of closing the feed inlet or the discharge outlet are rotatably installed at the feed inlet and the discharge outlet respectively.

[0007] Furthermore, a control panel is fixedly installed on the outer wall of the frame, and the control panel is electrically connected to the roller conveyor belt, the parallel robot arm, the vision positioning module, the sandblasting head, the blowing air head, and the sandblasting machine.

[0008] Furthermore, a safety door is provided on the outside of the frame, and the safety door is electrically connected to the control panel.

[0009] Furthermore, the frame is equipped with an observation window.

[0010] Furthermore, the dustproof door is made of an elastic colloid.

[0011] Furthermore, the dustproof door is configured as a rigid door panel, which is rotatably connected to the inlet or outlet via a rotating shaft. One end of the rotating shaft is fixedly connected to a swing cylinder for outputting rotational motion. The swing cylinder is electrically connected to the roller conveyor belt. Activating the roller conveyor belt enables the swing cylinder to rotate the door panel to open the inlet and outlet. Closing the roller conveyor belt enables the swing cylinder to rotate the door panel to close the inlet and outlet.

[0012] The beneficial effects of this utility model are as follows: 1. Achieve fully automated cleaning: Automatic feeding and discharging of graphite boxes is achieved through roller conveyor belts, automatic positioning of graphite boxes and sandblasting path planning are achieved through vision positioning module, and automatic sandblasting cleaning and blowing cleaning are achieved through parallel robotic arms driving sandblasting head fixtures. The entire cleaning process does not require manual intervention, which greatly reduces the labor intensity of operators and avoids operators from coming into contact with dust generated during sandblasting, thus protecting the health of operators. 2. High cleaning efficiency: The automated operation process eliminates the need for manual handling and auxiliary operations. The parallel robotic arm has high motion precision and fast response speed, enabling it to quickly and efficiently complete the sandblasting cleaning of graphite boxes. At the same time, the equipment can operate continuously, cleaning a large number of graphite boxes per hour. Compared with traditional manual and semi-automatic cleaning methods, the cleaning efficiency is greatly improved, which can meet the requirements of large-scale NdFeB production for graphite box turnover efficiency. 3. Stable and reliable cleaning effect: The visual positioning module scans and analyzes the condition of the oxide deposits on the inner wall of the graphite box in real time, and plans the movement path and sandblasting parameters of the sandblasting head based on the analysis results. This allows the sandblasting head to accurately clean the oxide deposits, avoiding the problems of incomplete or over-cleaning caused by insufficient human experience or fixed parameters in traditional cleaning methods. This ensures that the cleaning effect of each graphite box meets the preset standard, and the cleaning quality is stable and reliable. 4. Gravel recycling reduces production costs: A complete gravel recycling system is set up. The gravel sprayed during the sandblasting process is absorbed by the sand return suction head, the splashed gravel is collected by the sand collection hopper, and the recycled gravel is separated and purified by the sand return system of the sandblasting machine. The qualified gravel is sent back to the sand storage tank for recycling, which greatly reduces the waste of gravel and lowers the production cost of graphite box cleaning. 5. High safety: Dustproof doors are installed at the entrance and exit of the sandblasting chamber to effectively prevent dust from escaping during the sandblasting process; at the same time, a safety protection door is installed on the outside of the frame, and the safety protection door is linked to the equipment control system. When the safety protection door is opened, the equipment stops running immediately to ensure the personal safety of the operators. 6. Easy to operate: By setting up a control panel, operators can monitor the operating status of the entire equipment and set parameters through the control panel. The operation is simple and convenient, requiring no professional skills training, which reduces the difficulty of operation for operators.

[0013] Other advantages, objectives, and features of this invention will be set forth in the following description and will be apparent to those skilled in the art to some extent, or may be learned by practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0014] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the following drawings are provided for illustration: Figure 1 This is a front view structural diagram of the automatic sandblasting and cleaning machine for graphite boxes according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of the internal structure of the sandblasting chamber of the automatic sandblasting and cleaning machine for graphite boxes according to an embodiment of the present utility model; Figure 3 This is a rear view structural diagram of the graphite box automatic sandblasting and cleaning machine according to an embodiment of the present utility model; Figure 4 This is a partial structural diagram of the dustproof door of the graphite box automatic sandblasting and cleaning machine according to an embodiment of the present invention, when the door is a rigid door panel.

[0015] The following components are labeled in the attached diagram: Frame 1, Sandblasting Chamber 101, Feed Inlet 102, Discharge Outlet 103, Sand Collection Hopper 104, Dustproof Door 105, Safety Protection Door 106, Observation Window 107, Rotating Shaft 108, Swing Cylinder 109, Roller Conveyor Belt 2, Sandblasting Machine 3, Sandblasting Head 301, Blowing Air Head 302, Sand Return Pipe 303, Graphite Box 4, Parallel Robotic Arm 5, Vision Positioning Module 501, Control Panel 6. Detailed Implementation

[0016] like Figures 1-4As shown, this utility model provides an automatic sandblasting and cleaning machine for graphite boxes, including: a frame 1, a roller conveyor belt 2 that runs through the frame 1, and a sandblasting machine 3 fixedly installed on one side of the frame 1. The frame 1 is provided with a sandblasting chamber 101, and the roller conveyor belt 2 runs through the sandblasting chamber 101. The frame 1 has an inlet 102 and an outlet 103 on opposite sides along the conveying direction of the roller conveyor belt 2. The roller conveyor belt 2 is used to transport graphite boxes 4. A parallel robotic arm 5 is fixedly installed inside the sandblasting chamber 101. A vision positioning module 501 is fixedly installed on the parallel robotic arm 5. The sandblasting machine 3 is fixedly connected to a sandblasting head 301 and a blower head 302 through hoses. The sandblasting head 301 and the blower head 302 are fixedly connected to the parallel robotic arm 5. A sand collecting hopper 104 is fixedly installed on the frame 1 below the sandblasting chamber 101. The sandblasting machine 3 is connected to the sand collecting hopper 104 through a sand return pipe 303.

[0017] In this design, dustproof doors 105 are installed at both the inlet 102 and the outlet 103 to prevent dust from escaping from the inlet and outlet of the sandblasting chamber during the sandblasting process. A roller conveyor belt 2 runs through the entire frame 1 and passes inside the sandblasting chamber 101, used to transport graphite boxes 4 to be sandblasted and cleaned, and graphite boxes 4 that have already been sandblasted and cleaned. A parallel robotic arm 5 is installed on the frame inside the sandblasting chamber 101, and a vision positioning module 501 is provided on the parallel robotic arm 5. The vision positioning module 501 is used to scan the oxide deposits on the inner wall of the graphite box and locate the position of the graphite box, while simultaneously planning the movement path of the sandblasting head based on the scanned oxide deposits. The sandblasting head 301 is used to spray air onto the inner wall of the graphite box 4. The sand and gravel are used to remove oxide deposits. The purge air head 302 is used to blow gas into the graphite box 4 after sandblasting to remove residual sand and gravel. The sand return pipe 303 is used to absorb the sand and gravel sprayed out during sandblasting and to transport the sand and gravel collected by the sand collection hopper 104 back into the sandblasting machine to realize the recycling of sand and gravel. The control panel 6 is fixedly installed on the outer wall of the frame 1. The control panel 6 is electrically connected to the roller conveyor belt 2, the parallel manipulator 5, the vision positioning module 501, the sandblasting head 301, the purge air head 302, and the sandblasting machine 3 to control the operation of the entire equipment. The parallel manipulator 5 adopts a six-degree-of-freedom parallel manipulator, which has the characteristics of high motion accuracy and fast response speed, and can accurately drive the sandblasting head. 301 and the purge air head 302 move according to the path planned by the vision positioning module 501, ensuring that the sandblasting head 301 can accurately sandblast and clean the oxide deposits on the inner wall of the graphite box 4. The vision positioning module 501 includes a camera (high-definition industrial camera) and an image processor. The high-definition industrial camera is used to capture images of the inner wall of the graphite box to obtain the distribution of oxide deposits and the position information of the graphite box. The image processor is used to process and analyze the images captured by the high-definition industrial camera to determine the specific location and thickness of the oxide deposits, and to plan the movement path and sandblasting parameters (such as sandblasting pressure, sandblasting time, etc.) of the sandblasting head based on the analysis results. The sandblasting head 301 adopts an adjustable nozzle, which can be adjusted according to the vision positioning. Module 501 plans the sandblasting path and parameters, adjusts the nozzle's spray angle and spray range, ensuring effective cleaning of oxide deposits at different locations on the inner wall of the graphite box; the purge air head 302 is connected to a high-pressure air source. After sandblasting, the high-pressure air source provides high-pressure gas to the purge air head 302, which purges the inner wall of the graphite box 4 according to the preset purge path, blowing the residual sand and gravel into the sand collection hopper 104; the roller conveyor belt 2 includes a drive motor, a transmission mechanism, and multiple rollers. The drive motor drives the multiple rollers to rotate synchronously through the transmission mechanism, thereby realizing the conveying of the graphite box; and the speed of the roller conveyor belt 2 can be adjusted through the control panel 6 to adapt to different production rhythms;The sand return system of the sandblasting machine 3 includes a cyclone separator and a bag filter dust collector. The collected sand and gravel are transported to the cyclone separator through pipelines. The cyclone separator performs preliminary separation of the sand and gravel, separating most of the sand and gravel and sending it back to the sand storage tank of the sandblasting machine 3. A small amount of fine dust and sand and gravel particles enter the bag filter dust collector, which filters and collects them. The filtered clean gas is discharged. The collected dust and fine sand and gravel particles can be cleaned and recycled periodically. The sand return system is an inherent part of the sandblasting machine 3 and is a conventional technical means in this field, so it will not be described in detail here. A safety door 106 is installed on the outside of the frame 1. The safety door 106 is linked to the equipment's control system. When the safety door 106 is opened, the equipment immediately stops operating to ensure the personal safety of the operators. At the same time, an observation window 107 is also installed on the frame 1. The observation window 107 is made of transparent explosion-proof glass, which allows the operators to observe the working conditions inside the sandblasting chamber. The observation window 107 can be installed on the safety door 106 or on the side wall of the frame 1 opposite to the safety door 106.

[0018] The dustproof door 105 can be an elastic colloid. During the process of the graphite box 4 being transported by the roller conveyor belt 2, the graphite box 4 squeezes the elastic colloid to open the feed port 102 or the discharge port 103, which facilitates the transportation of the graphite box 4. The dustproof door 105 can be a rigid door panel, which is rotatably connected to the inlet 102 or outlet 103 via a rotating shaft 108. One end of the rotating shaft 108 is fixedly connected to a swing cylinder 109 for outputting rotational motion. The swing cylinder 109 is, for example, the DRRD-16-180-PPVA of the DRRD series, with a cylinder diameter range including 12mm, 16mm, 20mm, and 25mm; the rotation angle is fixed at 90° and 180°. The cylinder diameter range and rotation angle are determined by those skilled in the art. Adaptive selection; the swing cylinder 109 is electrically connected to the roller conveyor belt 2. Starting the roller conveyor belt 2 can cause the swing cylinder 109 to drive the door plate to rotate to open the feed port 102 and the discharge port 103. Closing the roller conveyor belt 2 can cause the swing cylinder 109 to drive the door plate to rotate to close the feed port 102 and the discharge port 103. By setting the dustproof door 105 as a rigid door plate, the sealing of the sandblasting chamber 101 during the sandblasting process is improved, and the sandblasting pressure or airflow is prevented from causing the dustproof door 105 to open and cause sand leakage.

[0019] How this solution works: Feeding stage: The operator places the graphite box 4 to be sandblasted on the roller conveyor belt 2, starts the equipment through the control panel 6, and the roller conveyor belt 2 starts to run, conveying the graphite box 4 to be sandblasted from the feed port 102 to the sandblasting chamber 101. Positioning and Path Planning Stage: When the graphite box 4 is conveyed to the designated position in the sandblasting chamber 101, the roller conveyor belt 2 stops operating; at this time, the vision positioning module 501 on the parallel robot arm 5 starts working, and the high-definition industrial camera captures an image of the inner wall of the graphite box 4 and transmits the image to the image processor; the image processor processes and analyzes the image to determine the accurate position of the graphite box and the distribution, position and thickness of the oxide deposits on the inner wall, and plans the optimal movement path of the sandblasting head and the corresponding sandblasting parameters (such as sandblasting pressure, sandblasting time, etc.) based on the analysis results, and transmits the planning results to the equipment control system; Sandblasting and gravel recovery stage: The equipment's control system starts the sandblasting machine 3 according to the path and parameters planned by the vision positioning module 501. The sandblasting machine 3 provides high-pressure gravel to the sandblasting head 301. At the same time, the control system controls the parallel robot arm 5 to drive the sandblasting head 301 to move according to the planned path. The sandblasting head 301 sprays gravel onto the oxide deposits on the inner wall of the graphite box according to the set sandblasting parameters to remove the oxide deposits. During the sandblasting process, the sand return system of the sandblasting machine 3 starts synchronously, absorbing the gravel sprayed out during the sandblasting process and transporting it back into the sandblasting machine. At the same time, the gravel splashed to the bottom of the sandblasting chamber during the sandblasting process falls into the sand collection hopper 104. The sand collection hopper 104 transports the gravel back into the sandblasting machine through the pipeline. The sand return system of the sandblasting machine 3 (cyclone separator and filter bag dust collector) separates and purifies the recovered gravel, and sends the qualified gravel back to the sand storage tank for recycling. Purging and cleaning stage: After the sandblasting cleaning is completed, the sandblasting machine 3 stops supplying sand to the sandblasting head 301, and the control system controls the high-pressure air source to supply high-pressure gas to the purging air head 302. The purging air head 302 purifies the inner wall of the graphite box 4 according to the preset purging path, and blows the sand remaining in the graphite box 4 into the sand collection hopper, thus completing the cleaning of the sand remaining in the graphite box 4. Discharge stage: After the blowing is completed, the roller conveyor belt 2 starts again, transporting the sandblasted graphite box 4 to the discharge port 103 to the outside of the sandblasting room, where the operator takes away the cleaned graphite box; at the same time, the roller conveyor belt 2 continues to run, transporting the next graphite box to be sandblasted to the sandblasting room, repeating the above work process to achieve continuous graphite box sandblasting and cleaning operation.

[0020] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. An automatic sandblasting and cleaning machine for graphite boxes, comprising a frame, characterized in that: The frame is equipped with a sandblasting chamber and a roller conveyor belt running through the sandblasting chamber. A sandblasting machine is fixedly installed on the outside of the frame. A parallel robotic arm located inside the sandblasting chamber is fixedly installed on the frame. A vision positioning module is fixedly installed on the parallel robotic arm. The sandblasting machine is fixedly connected to a sandblasting head and a blower head through hoses. The sandblasting head and the blower head are fixedly connected to the parallel robotic arm. A sand collection hopper is fixedly installed on the frame below the sandblasting chamber. The sandblasting machine is connected to the sand collection hopper through a sand return pipe.

2. The automatic graphite box sandblasting and cleaning machine according to claim 1, characterized in that: The frame is provided with a feed inlet and a discharge outlet on opposite sides along the conveying direction of the roller conveyor belt. Dustproof doors capable of closing the feed inlet or discharge outlet are rotatably installed at the feed inlet and discharge outlet respectively.

3. The automatic graphite box sandblasting and cleaning machine according to claim 2, characterized in that: A control panel is fixedly installed on the outer wall of the frame. The control panel is electrically connected to the roller conveyor belt, the parallel robot, the vision positioning module, the sandblasting head, the blowing air head, and the sandblasting machine.

4. The automatic graphite box sandblasting and cleaning machine according to claim 3, characterized in that: A safety door is provided on the outside of the frame, and the safety door is electrically connected to the control panel.

5. The automatic graphite box sandblasting and cleaning machine according to claim 1, characterized in that: The frame is equipped with an observation window.

6. The automatic graphite box sandblasting and cleaning machine according to claim 2, characterized in that: The dustproof door is made of elastic colloid.

7. The automatic graphite box sandblasting and cleaning machine according to claim 3, characterized in that: The dustproof door is a rigid door panel, which is rotatably connected to the inlet or outlet via a rotating shaft. One end of the rotating shaft is fixedly connected to a swing cylinder for outputting rotational motion. The swing cylinder is electrically connected to the roller conveyor belt. Starting the roller conveyor belt can cause the swing cylinder to drive the door panel to rotate to open the inlet and outlet. Closing the roller conveyor belt can cause the swing cylinder to drive the door panel to rotate to close the inlet and outlet.

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