Circulating transport mechanism and sandblasting device

Abstract

The application discloses a circulating conveying mechanism. The circulating conveying mechanism comprises a conveying assembly, a plurality of bearing assemblies and an adsorbing fixing assembly. The plurality of bearing assemblies are arranged on the conveying assembly and are used for bearing workpieces. The bearing assemblies move around the conveying assembly under the driving of the conveying assembly. The adsorbing fixing assembly is connected with each bearing assembly and is used for fixing the workpieces. The circulating conveying mechanism has the advantages that the workpieces are fixed in a simple manner, no additional parts are needed to assist in fixing the workpieces, the workpieces are only needed to be placed on the bearing assemblies, the adsorbing fixing assembly can fix the workpieces, and the workpieces are only needed to be directly taken off from the bearing assemblies when the workpieces are disassembled. Therefore, the workpiece feeding operation can be simplified, and the workpiece feeding and discharging efficiency can be improved. The application also provides a sand blasting device comprising the circulating conveying mechanism.

Description

Technical Field

[0001] This application relates to the field of conveying device technology, and specifically to a circulating conveying mechanism and a sandblasting device including the circulating conveying mechanism. Background Technology

[0002] In assembly line production, workpieces are typically mounted in fixtures on the assembly line, allowing the fixtures to move along with the line while the workpieces are gradually shaped. The workpiece and fixture are usually secured using a snap-fit ​​connection. For example, after placing the workpiece on the fixture, another component is placed on top of the workpiece and snaps into the fixture, thus securing the workpiece. However, this method of securing the workpiece is cumbersome because the fixture requires other components to work in conjunction with it, resulting in low workpiece loading and unloading efficiency. Summary of the Invention

[0003] In view of the above, it is necessary to propose a circulating conveying mechanism and a sandblasting device including the circulating conveying mechanism to simplify the workpiece fixing operation and improve the workpiece loading and unloading efficiency.

[0004] This application provides a circulating conveying mechanism, which includes a conveying component, multiple carrying components, and an adsorption and fixing component. The multiple carrying components are disposed on the conveying component and are used to carry workpieces. The carrying components move around the conveying component under the drive of the conveying component. The adsorption and fixing component is connected to each of the carrying components and is used to fix the workpiece.

[0005] When loading workpieces, the aforementioned circulating conveyor mechanism simply places the workpiece on the carrying component. The adsorption and fixing components on the carrying component then hold the workpiece in place, completing the loading operation. When workpieces need to be removed, they can be manually or via an external transfer mechanism directly removed from the carrying component, thus completing the unloading operation. Therefore, the loading and unloading of workpieces in this circulating conveyor mechanism utilizes only the carrying component and the adsorption and fixing components connected to it, avoiding the need for disassembly and reassembly of these components during loading and unloading, simplifying the workflow, and thereby improving the efficiency of workpiece loading and unloading.

[0006] In some embodiments, the adsorption and fixing assembly includes an adsorption unit and an anti-tangling unit; the adsorption unit includes a main air duct and multiple adsorption tubing, the main air duct is annular and located on the same side of the multiple supporting components, and can move with the multiple supporting components; the multiple adsorption tubing is connected to the main air duct and is respectively connected to the multiple supporting components to adsorb and fix the workpiece; the anti-tangling unit is respectively connected to an external air source and the main air duct, and can move with the main air duct.

[0007] In some embodiments, the anti-tangling unit includes a connecting pipe, a driving module, and a sensing module; the connecting pipe includes a first air end and a second air end, the first air end being connected to the main air pipe and capable of moving with the main air pipe; the driving module has a first air port and a second air port, the first air port and the second air port being connected, the first air port being connected to an external air source, the second air port being connected to the second air end, the connecting pipe being wound around the driving module, and the driving module being used to wind up or release the connecting pipe when the first air end of the connecting pipe moves with the main air pipe, so that the connecting pipe is in a tensioned state; the sensing module is located at the end of the conveying assembly, and the sensing module is used to sense the first air end passing through the end of the conveying assembly, so as to control the driving module to wind up or release the connecting pipe.

[0008] In some embodiments, the drive module includes an anti-tangle drive and an air tube retraction component; the air tube retraction component is connected to the anti-tangle drive, the air tube retraction component is provided with a first air port and a second air port, and can retract or release the connecting pipe under the drive of the anti-tangle drive.

[0009] In some embodiments, the air tube retraction device includes a rotating shaft and two turntables; the rotating shaft is connected to the anti-winding drive, the second air port is disposed on the side of the rotating shaft, the first air port is recessed at the end of the rotating shaft away from the anti-winding drive and communicates with the second air port; the two turntables are respectively connected to the two ends of the rotating shaft, and the two turntables are used to limit the connecting pipe.

[0010] In some embodiments, the sensing module includes a sensing element and two sensors; the sensing element is disposed at the first air end; the two sensors are respectively disposed at both ends of the conveying assembly, for sensing the sensing element that moves with the first air end, and when the sensing element senses the two sensors respectively, the anti-entanglement drive member drives the air tube take-up and release member to wind up or release the connecting pipe.

[0011] In some embodiments, the carrier assembly further includes a carrier member and a connector; the carrier member is provided with a positioning groove for positioning the workpiece; the connector is connected to the carrier member, and the connector is provided with a vent hole, one end of which communicates with the positioning groove, and the other end of which is connected to the adsorption pipeline.

[0012] In some embodiments, the conveying assembly includes a frame, a rotation drive, and a conveyor belt; the rotation drive is disposed on the frame; the conveyor belt is rotatably disposed on the frame and connected to the rotation drive; a plurality of the bearing components are connected to the conveyor belt, and the conveyor belt is used to drive the plurality of bearing components to rotate cyclically around the frame under the drive of the rotation drive.

[0013] This application also provides a sandblasting device, including a circulating conveying mechanism, a sandblasting mechanism, and a sand collection mechanism as described above; the sandblasting mechanism is disposed opposite to the conveying assembly and is used to sandblast the workpiece on the carrying assembly; the sand collection mechanism is disposed on the side of the conveying assembly away from the sandblasting mechanism and is used to collect sand.

[0014] In some embodiments, the sand collection mechanism includes a sand collection and transport component and a flow guide component; the sand collection and transport component is located on the side of the conveying assembly away from the sandblasting mechanism, and is used to collect used sand and transport the sand to a predetermined position; the flow guide component is located between the conveying assembly and the sand collection and transport component, and the flow guide component is provided with a flow guide cavity, which is used to guide the used sand to the sand collection and transport component. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the sandblasting device provided in the embodiments of this application.

[0016] Figure 2 yes Figure 1 A three-dimensional structural diagram of the circulating conveying mechanism in the sandblasting device shown.

[0017] Figure 3 yes Figure 2 An enlarged schematic diagram of the sandblasting device shown at point III.

[0018] Figure 4 yes Figure 2 The diagram shows a cross-sectional view of the drive module along the IV-IV direction in the circulating conveying mechanism.

[0019] Figure 5 yes Figure 4 The diagram shows a three-dimensional structure of the rotating shaft and the second air end in the drive module.

[0020] Figure 6 yes Figure 2 The diagram shows a three-dimensional structural schematic of the load-bearing component in the circulating conveying mechanism.

[0021] Figure 7 yes Figure 1 A three-dimensional structural diagram of the guide component in the sandblasting device is shown.

[0022] Explanation of main component symbols

[0023] 1000 sandblasting devices

[0024] Circulating conveyor mechanism 100

[0025] Transmission Component 10

[0026] Rack 11

[0027] Rotary drive component 12

[0028] Conveyor belt 13

[0029] Adsorption and fixing components 20

[0030] Adsorption unit 21

[0031] 211 main tracheal inlet

[0032] Adsorption pipeline 212

[0033] Anti-tangle unit 22

[0034] Connecting pipe 221

[0035] First gas end 2211

[0036] Second gas end 2212

[0037] Drive Module 222

[0038] First air inlet 2221

[0039] Second air inlet 2222

[0040] Anti-winding drive component 2223

[0041] Tracheal retraction device 2224

[0042] Shaft 2225

[0043] Spinning wheel 2226

[0044] Surface 2227

[0045] Sensing Module 223

[0046] Sensor 2231

[0047] Sensor 2232

[0048] Load-bearing component 30

[0049] Bearing component 31

[0050] Positioning groove 311

[0051] Adsorption pore 312

[0052] Connector 32

[0053] Through hole 321

[0054] Controller 40

[0055] Sandblasting mechanism 200

[0056] 300 sand collection mechanism

[0057] Sand collection and transportation component 301

[0058] Flow guide 302

[0059] 303 Flow guide cavity Detailed Implementation

[0060] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0061] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0062] The following will describe some embodiments of this application in detail with reference to the accompanying drawings.

[0063] Please see Figure 1 and Figure 2This application provides a circulating conveying mechanism 100. The circulating conveying mechanism 100 in this embodiment is applicable to a production line for conveying workpieces. For example, the circulating conveying mechanism 100 is applied in a sandblasting device 1000, whereby the circulating conveying mechanism 100 conveys the workpiece to the sandblasting mechanism for sandblasting treatment, and then conveys the sandblasted workpiece to the next processing mechanism. It should be noted that the above example of the sandblasting device 1000 does not constitute a limitation on the circulating conveying mechanism 100 of this embodiment.

[0064] Please refer to Figure 2 The circulating conveying mechanism 100 includes a conveying component 10, an adsorption and fixing component 20, multiple carrying components 30, and a controller 40. In this embodiment, the conveying component 10 includes a frame 11, a rotation drive component 12, and a conveyor belt 13. The rotation drive component 12 can be a motor, and it is mounted on the frame 11. The conveyor belt 13 is rotatably mounted on the frame 11, and the rotation drive component 12 is connected to the conveyor belt 13 to drive the conveyor belt 13 to rotate around the frame 11. The conveyor belt 13 is used to connect with the carrying components 30. When the conveyor belt 13 rotates around the frame 11, it drives the carrying components 30 to rotate together. In this embodiment, the rotation drive component 12 can drive the conveyor belt 13 through a pulley drive. In other embodiments, the rotation drive component 12 can also drive the conveyor belt 13 through a gear drive.

[0065] In other embodiments, the conveying component 10 can perform linear reciprocating motion, that is, the conveying component 10 can drive the workpiece on the carrying component 30 to move toward the sandblasting mechanism so that the sandblasting mechanism can sandblast the workpiece. After the workpiece has been sandblasted, the conveying component 10 drives the carrying component 30 away from the sandblasting mechanism so as to remove the workpiece on the carrying component 30 from the sandblasting mechanism.

[0066] The carrying components 30 are used to carry the workpieces. Multiple carrying components 30 are spaced apart on the conveyor belt 13 in the conveyor assembly 10. When the rotation drive 12 drives the conveyor belt 13 to move, the conveyor belt 13 drives the multiple carrying components 30 to rotate cyclically around the frame 11. When the conveyor belt 13 carries the workpieces on the carrying components 30, the workpieces will pass through the sandblasting mechanism. At this time, the sandblasting mechanism performs sandblasting treatment on the workpieces. While the sandblasting mechanism is performing sandblasting treatment on the workpieces, the conveyor belt 13 can continue to move or be in a stopped state. After the workpieces have been sandblasted, they are conveyed by the conveyor belt 13 to the next processing mechanism.

[0067] The adsorption and fixing component 20 is connected to a plurality of support components 30 one by one. The adsorption and fixing component 20 is used to adsorb the workpiece to fix the workpiece on the support component 30. The adsorption and fixing component 20 may include a plurality of magnets, each corresponding to a plurality of support components 30. Each magnet is installed on a corresponding support component 30. When the workpiece is placed on the support component 30, the adsorption and fixing component 20 can directly adsorb the workpiece to achieve the purpose of fixing the workpiece.

[0068] In addition, the adsorption and fixing component 20 can also be a fixing adhesive used to fix the workpiece. The fixing adhesive is applied to the carrier component 30, and the workpiece is fixed to the carrier component 30 by adhesive bonding. Alternatively, the adsorption and fixing component 20 can be a hook and loop fastener, with the hook side of the hook and loop fastener installed on the carrier component 30 and the loop side of the hook and loop fastener fixed to the workpiece. When the hook side and the loop side come into contact, the workpiece is bonded and fixed to the carrier component 30.

[0069] In this embodiment, the adsorption and fixing component 20 uses vacuum adsorption to fix the workpiece. When the workpiece is placed on the carrier component 30, the adsorption and fixing component 20 adsorbs and fixes the workpiece.

[0070] Since the adsorption and fixing component 20 fixes the workpiece to the carrier component 30 by magnetic attraction, adhesion, or vacuum adsorption, when fixing the workpiece, the operator or robot only needs to place the workpiece on the carrier component 30, at which point the adsorption and fixing component 20 fixes the workpiece; and when removing the workpiece, the operator or robot only needs to remove the workpiece from the carrier component 30. Therefore, the workpiece assembly and disassembly method of the circulating conveyor mechanism 100 is simple, and no other parts are needed to fix the workpiece, thereby simplifying the workpiece installation steps and improving the efficiency of workpiece loading and unloading.

[0071] Furthermore, when the sandblasting mechanism sandblasts the workpiece, the internal stress of the workpiece itself is released. After the internal stress of the workpiece is released, the workpiece will warp and deform. Since the adsorption and fixing component 20 fixes the workpiece at this time, the workpiece is firmly fixed on the bearing component 30 by the adsorption and fixing component 20 and will not warp and deform. In this process, the adsorption and fixing component 20 plays a corrective role for the workpiece, so that the workpiece will not deform after sandblasting, thereby ensuring the accuracy of the workpiece.

[0072] In this embodiment, the adsorption fixing component 20 uses vacuum adsorption to fix the workpiece, and includes an adsorption unit 21 and an anti-winding unit 22. The adsorption unit 21 includes a main air pipe 211 and multiple adsorption pipes 212. The main air pipe 211 is composed of multiple short air pipes connected together. The main air pipe 211 is ring-shaped and located on one side of multiple support components 30. The multiple adsorption pipes 212 correspond one-to-one with the multiple support components 30, and one end of each adsorption pipe 212 is connected to the main air pipe 211, and the other end of each adsorption pipe 212 is connected to the corresponding support component 30. When the workpiece is placed on the support component 30, the adsorption pipe 212 adsorbs the bottom surface of the workpiece. When the circulating conveying mechanism 100 is in operation, the conveying component 10 drives the multiple support components 30 to rotate cyclically. Since the main air pipe 211 is connected to the support components 30 through the adsorption pipes 212, when the multiple support components 30 rotate cyclically, the main air pipe 211 will rotate around the frame 11 along with the multiple support components 30.

[0073] Please see Figure 2 , Figure 3 and Figure 4 The anti-entanglement unit 22 includes a connecting pipe 221, a drive module 222, and a sensing module 223. The connecting pipe 221 includes a first air end 2211 and a second air end 2212. The first air end 2211 is connected to the main air pipe 211. When the main air pipe 211 rotates with the multiple supporting components 30, the first air end 2211 will rotate with the main air pipe 211.

[0074] The drive module 222 is provided with a first air port 2221 and a second air port 2222. The first air port 2221 and the second air port 2222 are connected. The first air port 2221 is connected to an external air source, and the second air port 2222 is connected to a second air end 2212. The connecting pipe 221 is wound on the drive module 222. The drive module 222 is used to wind up or release the connecting pipe 221.

[0075] When the workpiece is placed on the support component 30, the adsorption pipe 212 comes into contact with the workpiece, and then the external air source is activated. The external air source can draw air from the main air pipe 211 and the adsorption pipe 212 through the connecting pipe 221. At this time, a negative pressure can be formed in the adsorption pipe 212, thereby adsorbing and fixing the workpiece on the support component 30.

[0076] Since the connecting pipe 221 is connected to the main airway 211, when the main airway 211 moves along with the multiple supporting components 30, the connecting pipe 221 will also move along with the main airway 211. When the pipeline between the first air end 2211 and the drive module 222 is in a slack state, the connecting pipe 221 is prone to tangling and knotting during its movement along the main airway 211. To solve the problem of tangling and knotting of the connecting pipe 221, the drive module 222 needs to wind up or release the connecting pipe 221 during its movement along the main airway 211. This is achieved by shortening or lengthening the length from the first air end 2211 to the drive module 222 to keep the connecting pipe 221 taut. Because the connecting pipe 221 is always taut under the driving action of the drive module 222, tangling of the connecting pipe 221 is avoided.

[0077] The sensing module 223 is located at the end of the frame 11 in the transmission assembly 10, and the sensing module 223 is electrically connected to the controller 40. When the first air end 2211 of the connecting pipe 221 rotates with the main air pipe 211, it will pass through both ends of the frame 11. When the sensing module 223 senses that the first air end 2211 has passed through one end of the frame 11, for example, the first air end 2211 moves with the main air pipe 211 toward the drive module 222. When the sensing module 223 senses the first air end 2211, it transmits a signal to the controller 40. The controller 40 controls the drive module 222 to move to retract the connecting pipe 221. When the sensing module 223 senses that the first air end 2211 has passed through the other end of the frame 11, for example, the first air end 2211 moves with the main air pipe 211 away from the drive module 222. When the sensing module 223 senses the first air end 2211, it transmits a signal to the controller 40. The controller 40 controls the drive module 222 to release the connecting pipe 221. By setting the sensing module 223, the drive module 222 can automatically rewind or release the connecting air tube.

[0078] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4In this embodiment, the sensing module 223 includes two sensors 2231 and a sensing element 2232. The two sensors 2231 are respectively disposed at both ends of the frame 11 in the conveying assembly 10. The sensors 2231 can be magnetic sensors and are electrically connected to the controller 40. The sensing element 2232 is disposed on the surface of the first gas end 2211 of the connecting pipe 221. For example, the sensing element 2232 can be coated or plated on the surface of the first gas end 2211. The sensing element 2232 is a magnetic material that can be sensed by the sensors 2231. In this embodiment, the operation of the sensing module 223 is as follows: when the first air end 2211 rotates with the main air pipe 211 to one end of the frame 11, and the movement trend of the first air end 2211 is towards the anti-tangling drive component 2223, the sensor 2231 on the frame 11 will sense the sensing component 2232. At this time, the sensor 2231 transmits a signal to the controller 40, and the controller 40 controls the anti-tangling drive component 2223 to drive the air pipe take-up and release component 2224 to rotate to retract the air pipe. When the first air end 2211 rotates with the main air tube 211 to the other end of the frame 11, and the first air end 2211 moves away from the anti-winding drive 2223, another sensor 2231 on the frame 11 will sense the sensor 2232. At this time, the other sensor 2231 will transmit a signal to the controller 40. The controller 40 controls the anti-winding drive 2223 to drive the air tube take-up and release component 2224 to rotate to release the connecting tube 221.

[0079] Under the sensing action of the sensing module 223, the anti-tangling unit 22 can automatically perform the operation of winding or releasing the connecting pipe 221, thereby ensuring that the connecting pipe 221 remains taut and preventing tangling or knotting. Furthermore, the sensing module 223 enables the drive module 222 to automatically wind or release the connecting pipe 221.

[0080] The drive module 222 includes an anti-winding drive component 2223 and an air tube retraction / release component 2224. The anti-winding drive component 2223 is located on one side of the frame 11 and can rotate in both directions. The anti-winding drive component 2223 can be a motor; for example, when rotating in the forward direction, it can be used to wind up the connecting tube 221, and when rotating in the reverse direction, it can be used to release the connecting tube 221. The anti-winding drive component 2223 is connected to the air tube retraction / release component 2224, and the connecting tube 221 is wound around the periphery of the air tube retraction / release component 2224. The anti-winding drive component 2223 drives the air tube retraction / release component 2224 to rotate in either the forward or reverse direction to achieve the purpose of winding or releasing the connecting tube 221.

[0081] The tracheal tube retractor 2224 includes a rotating shaft 2225 and two turntables 2226. The rotating shaft 2225 has a cylindrical structure. One end of the rotating shaft 2225 is connected to the anti-winding drive 2223, and the other end of the rotating shaft 2225 is recessed with a first air port 2221. The first air port 2221 extends along the axial direction of the rotating shaft 2225 and is used to connect to an external air source. A second air port 2222 is opened on the circumference of the rotating shaft 2225. The second air port 2222 communicates with the first air port 2221 and is used to connect to the second air end 2212.

[0082] Please see Figure 4 and Figure 5 In this embodiment, the second air end 2212 is L-shaped and threaded to the second air port 2222. To ensure the airtightness of the connection between the second air port 2222 and the second air end 2212, a sealing gasket (not shown) is provided between the second air end 2212 and the rotating shaft 2225. In order to make the sealing gasket fit tightly against the rotating shaft 2225, the side of the rotating shaft 2225 is provided with an abutment surface 2227. The abutment surface 2227 is flat, and the second air port 2222 is located at the abutment surface 2227. Since the abutment surface 2227 is flat, the contact area between the sealing gasket and the abutment surface 2227 can be increased, thereby making the two fit more tightly. When the second air end 2212 is tightened on the rotating shaft 2225, the sealing gasket can seal the gap between the second air end 2212 and the rotating shaft 2225. Compared to the curved contact between the sealing gasket and the rotating shaft 2225, the planar contact between the sealing gasket and the rotating shaft 2225 makes it easier to fit together and seal the gap between the second air end 2212 and the second air port 2222, thereby ensuring the airtightness of the connection between the second air port 2222 and the second air end 2212.

[0083] Please see Figure 4 Two turntables 2226 are respectively connected to the two ends of the rotating shaft 2225, and the diameter of the turntables 2226 is larger than the diameter of the rotating shaft 2225. The connecting pipe 221 is wound on the rotating shaft 2225 and located between the two turntables 2226. The two turntables 2226 act as a barrier for the connecting pipe 221, so that the connecting pipe 221 is not easy to slip off the rotating shaft 2225 during the winding or unwinding process.

[0084] Please see Figure 2 and Figure 6The support component 30 includes a support member 31 and a connector 32. The support member 31 has a rectangular block structure and is mounted on the conveyor belt 13. A positioning groove 311 is provided on the side of the support member 31 facing away from the conveyor belt 13 to position the workpiece. When the workpiece is placed in the positioning groove 311, the groove wall of the positioning groove 311 abuts against the side wall of the workpiece, making it difficult for the workpiece to slide relative to the support member 31. In this embodiment, the positioning groove 311 is rectangular. The shape of the positioning groove 311 can be adapted to the shape of the workpiece. Therefore, in other embodiments, the positioning groove 311 can also be circular or other contoured shapes. By setting the positioning groove 311 to a contoured shape, the workpiece can be positioned more effectively.

[0085] The bottom of the positioning groove 311 has multiple spaced adsorption holes 312 for adsorbing workpieces. A connector 32 is connected to the side of the support member 31, and a through hole 321 is provided on the connector 32. One end of the through hole 321 communicates with the multiple adsorption holes 312, thus connecting the through hole 321 to the positioning groove 311. In this embodiment, one end of the adsorption pipe 212 is connected to the end of the through hole 321 furthest from the support member 31. At this time, an external air source continuously draws air from the adsorption holes 312 to generate negative pressure. When the workpiece is placed in the positioning groove 311, the groove wall of the positioning groove 311 positions the workpiece, and simultaneously, the workpiece covers the adsorption holes 312, thus adsorbing and fixing the workpiece onto the support member 31.

[0086] In other embodiments, the number of positioning grooves 311 on the carrier 31 can be multiple, and the multiple positioning grooves 311 are arranged at intervals. Each positioning groove 311 contains a workpiece. Since multiple positioning grooves 311 are provided on a carrier 31, a carrier 31 can carry multiple workpieces, thereby improving the conveying capacity of the circulating conveying mechanism 100. This enables the sandblasting mechanism to sandblast more workpieces in one sandblasting operation, thus improving the processing efficiency of the workpieces.

[0087] The working process of the circulating conveying mechanism 100 provided in this embodiment is roughly as follows:

[0088] The workpiece is placed in the positioning groove 311 on the carrier 31. The positioning groove 311 first positions the workpiece. Since the workpiece is covered above the adsorption hole 312 at this time, the workpiece is adsorbed and fixed on the carrier 31 by the adsorption hole 312.

[0089] The rotating drive unit 12 drives the conveyor belt 13 to move, so that the conveyor belt 13 can carry the workpiece on the carrier 31 to the sandblasting mechanism. At this time, the sandblasting mechanism performs sandblasting treatment on the workpiece. When the conveyor belt 13 continues to move, the conveyor belt 13 carries the sandblasted workpiece on the carrier 31 away from the sandblasting mechanism. Since the workpiece has been sandblasted, the operator or robot can directly remove the workpiece from the carrier 31. At this time, the carrier 31, which is now in an unloaded state, will continue to move around the frame 11 under the action of the conveyor belt 13, waiting for the operator or robot to place the next workpiece to be processed.

[0090] In this design, because the conveyor belt 13 carries multiple carriers 31 in a cyclic rotation around the frame 11, the main air pipe 211 will rotate along with the carriers 31. At this time, the first air end 2211 of the connecting pipe 221 will rotate along with the main air pipe 211. When the first air end 2211 moves towards the anti-winding drive 2223, it will first pass the end of the frame 11 furthest from the anti-winding drive 2223. At this time, the frame 11... The sensor 2231 on the device will detect the sensor 2232, and the sensor 2231 will send a signal to the controller 40. The controller 40 will then control the anti-tangling drive 2223 to drive the air tube retractor 2224 to rotate and retract the connecting tube 221. As the connecting tube 221 is retracted by the air tube retractor 2224, the length of the connecting tube 221 becomes shorter. As the first air end 2211 gradually approaches the anti-tangling drive 2223, the connecting tube 221... The length of the connecting pipe 221 gradually decreases, thus keeping the connecting pipe 221 taut and preventing it from tangling. When the first air end 2211 moves away from the anti-tangling drive 2223, it passes the end of the frame 11 closest to the anti-tangling drive 2223. At this time, another sensor 2231 on the frame 11 senses the sensor 2232 and sends a signal to the controller 40. The controller 40 then controls the anti-tangling drive 2223 to rotate the air tube retractor 2224 to release the connecting pipe 221. The length of the connecting pipe 221 increases under the release action of the air tube retractor 2224. As the first air end 2211 gradually moves away from the anti-tangling drive 2223, the length of the connecting pipe 221 also gradually increases, thus keeping the connecting pipe 221 taut and preventing it from tangling.

[0091] Please see Figure 1 and Figure 7This application also discloses a sandblasting device 1000, which includes a circulating conveying mechanism 100, a sandblasting mechanism 200, and a sand collection mechanism 300 as described in the above embodiments. The sandblasting mechanism 200 is disposed opposite to the conveying assembly 10. In this embodiment, the sandblasting mechanism 200 is located above the conveying assembly 10 and is used to blast sand onto the surface of the workpiece. The sand collection mechanism 300 is located on the side of the conveying assembly 10 away from the sandblasting mechanism 200 and is used to collect used sand.

[0092] The sand collection mechanism 300 includes a sand collection and transport component 301 and a flow guide component 302. The flow guide component 302 is connected to the frame 11 in the conveying assembly 10. A flow guide cavity 303 is provided on the flow guide component 302, which is connected to the sand collection and transport component 301. The flow guide component 302 gradually converges from one end close to the frame 11 to the end away from the frame 11.

[0093] The sand collection and transport component 301 is connected to the end of the guide component 302 away from the frame 11. After use, the sand flows into the sand collection and transport component 301 under the guidance of the guide component 302, which prevents sand from easily overflowing outside the component. In this embodiment, the sand collection and transport component 301 is a screw conveyor, which can collect and centrally process the sand.

[0094] When the sandblasting device 1000 is in operation, the conveyor belt 13 carries multiple carriers 31 in a cyclical rotation around the frame 11 to transport the workpiece to be sandblasted to the sandblasting mechanism 200, and simultaneously transport the sandblasted workpiece to the next processing position or processing mechanism. When the workpiece is transported to the sandblasting mechanism 200, the sandblasting mechanism 200 sprays sand onto the surface of the workpiece, and the used sand falls onto the guide member 302 below the frame 11 under its own gravity. At this time, the guide member 302 guides the sand into the sand collection and transport member 301, and the sand collection and transport member 301 then transports the used sand to a predetermined position, thereby realizing the recovery of sand.

[0095] Because the sandblasting device 1000 uses the aforementioned circulating conveying mechanism 100 to transport workpieces, its loading and unloading operations are simple and efficient, resulting in high sandblasting processing efficiency. Furthermore, the sandblasting mechanism 200 is positioned above the conveying assembly 10, allowing the sandblasting device 1000 to simultaneously transport and sandblast the workpieces, further improving processing efficiency. The sandblasting device 1000 automatically recovers sand under the action of the sand collection mechanism 300, preventing sand from splashing everywhere and contaminating the working environment. The automatic sand collection mechanism 300 also saves manpower and reduces the labor intensity of operators.

[0096] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be embraced within this application.

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. A circulating conveying mechanism, characterized in that, include: Transmission component; Multiple support components are disposed on the conveying component and used to carry workpieces. The support components move around the conveying component under the drive of the conveying component. An adsorption and fixing assembly is connected to each of the aforementioned support components. The adsorption and fixing assembly is used to fix the workpiece. The adsorption and fixing assembly includes an adsorption unit and an anti-winding unit. The adsorption unit includes a main air duct and multiple adsorption tubing. The main air duct is annular and located on the same side of the multiple support components, and can move with the multiple support components. The multiple adsorption tubing is connected to the main air duct and is also connected to the multiple support components to adsorb and fix the workpiece. The anti-winding unit is connected to an external air source and the main air duct, and can move with the main air duct. The anti-winding unit includes a connecting pipe, a drive module, and a sensing module. The connecting pipe includes a first air end and... The second air end is connected to the first air end and can move with the main air pipe. The drive module has a first air port and a second air port, which are connected. The first air port is connected to an external air source, and the second air port is connected to the second air end. The connecting pipe is wound around the drive module. The drive module is used to wind or release the connecting pipe when the first air end of the connecting pipe moves with the main air pipe, so that the connecting pipe is in a taut state. The sensing module is located at the end of the transmission component. The sensing module is used to sense the first air end passing through the end of the transmission component to control the drive module to wind or release the connecting pipe.

2. The circulating conveying mechanism as described in claim 1, characterized in that, The drive module includes: Anti-tangling drive component; An air tube retractor is connected to the anti-tangle drive. The air tube retractor is provided with a first air port and a second air port, and can retract or release the connecting pipe under the drive of the anti-tangle drive.

3. The circulating conveying mechanism as described in claim 2, characterized in that, The tracheal retraction device includes: A rotating shaft is connected to the anti-winding drive component. The second air port is located on the side of the rotating shaft, and the first air port is recessed at the end of the rotating shaft away from the anti-winding drive component and communicates with the second air port. Two turntables are respectively connected to both ends of the rotating shaft, and the two turntables are used to limit the connecting pipe.

4. The circulating conveying mechanism as described in claim 1, characterized in that, The sensing module includes: The sensing element is located at the first gas end; Two sensors are respectively located at both ends of the conveying assembly to sense the sensing element that moves with the first air end. When the sensing element senses the two sensors respectively, the anti-entanglement drive unit drives the air tube take-up and release component to wind up or release the connecting pipe.

5. The circulating conveying mechanism as described in claim 1, characterized in that, The carrier component also includes: A carrier component, wherein the carrier component is provided with a positioning groove, the positioning groove being used to position the workpiece; A connector is attached to the support member. The connector is provided with a vent hole. One end of the vent hole is connected to the positioning groove, and the other end of the vent hole is connected to the adsorption pipeline.

6. The circulating conveying mechanism as described in claim 1, characterized in that, The transmission component includes: frame, A rotation drive component is mounted on the frame; A conveyor belt is rotatably mounted on the frame and connected to the rotation drive component. A plurality of the load-bearing components are connected to the conveyor belt. The conveyor belt is used to drive the plurality of load-bearing components to rotate cyclically around the frame under the drive of the rotation drive component.

7. A sandblasting device, characterized in that, include: The circulating conveying mechanism as described in any one of claims 1-6; A sandblasting mechanism, disposed opposite to the conveying assembly, is used to sandblast the workpiece on the carrying assembly; A sand collection mechanism is located on the side of the conveying assembly away from the sandblasting mechanism and is used to collect sand.

8. The sandblasting device as described in claim 7, characterized in that, The sand collection mechanism includes: A sand collection and transport component is located on the side of the conveying assembly away from the sandblasting mechanism, and is used to collect used sand and transport it to a predetermined location; A flow guide is disposed between the conveying assembly and the sand collection and transporting component. The flow guide has a flow guide cavity, which is used to guide the used sand to the sand collection and transporting component.

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