A mobile phone middle plate sand blasting deburring process

Abstract

The application provides a mobile phone middle plate sand blasting deburring process, which comprises the following steps: placing the mobile phone middle plate into a middle plate fixing box, closing the upper fixing box and the lower fixing box to form a deburring jig, placing the deburring jig on a guide rail and pushing it into a workbench, moving the deburring jig above a first receiving pipe through a conveying assembly, adjusting the position of a piston in a feeding pipe through a hydraulic cylinder, sucking the sand blasting in a sand blasting storage tank into the feeding pipe, then pushing it into an air inlet pipe, starting a high-pressure air blower to blow air into the air inlet pipe, mixing the air and the sand blasting in a mixing pipe, and then entering the output pipe, the mixture of the air and the sand blasting is blown into the middle plate fixing box through the output pipe to perform sand blasting deburring on the mobile phone middle plate, after the deburring is completed, the conveying assembly drives the deburring jig to move and overturn, and finally reaches above a second receiving pipe. The application effectively reduces the cost of the mobile phone middle plate deburring, and improves the deburring effect.

Description

Technical Field

[0001] This invention relates to the field of burr removal technology for mobile phone mid-plates, specifically a sandblasting process for removing burrs from mobile phone mid-plates. Background Technology

[0002] Traditional deburring of mobile phone mid-plates involves manual operation of a grinding machine, files, and scrapers. This method of deburring mobile phone mid-plates has low production efficiency, unstable yield, high requirements for employees' professional skills, and is labor-intensive, increasing production costs and hindering production.

[0003] Sandblasting has the advantages of low cost, safety, high removal efficiency / yield, and reusability, and its application is very widespread in the market. However, there is currently a lack of professional and efficient sandblasting deburring process for mobile phone mid-plates. Therefore, there is an urgent need for a sandblasting deburring process for mobile phone mid-plates that has good deburring effect, low processing cost, and safe use. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To achieve the above objectives, the present invention provides the following technical solution: a sandblasting process for removing burrs from a mobile phone mid-plate, comprising the following steps:

[0006] S1: Place the mobile phone mid-plate into the mid-plate fixing box, close the upper fixing box and the lower fixing box to form a deburring fixture, place the deburring fixture on the guide rail, and push it into the worktable.

[0007] The mobile phone mid-plate sandblasting and deburring device includes a worktable, a deburring component installed on the upper surface of the worktable, a circulation component installed on the outside of the worktable, and a set of guide rails fixedly connected to both sides of the worktable. The guide rails are used to send the mid-plate fixing box into the worktable. The mid-plate fixing box includes an upper fixing box and a lower fixing box. Both the upper fixing box and the lower fixing box have through holes on their exteriors that correspond to the edge or hole position of the mobile phone mid-plate. Several sets of support columns are set at the bottom of the upper fixing box. The support columns are used to fix the mobile phone mid-plate inside the lower fixing box. The upper fixing box and the lower fixing box are fixed by locking slots and pins. A transport component is installed inside the worktable.

[0008] S2: The deburring fixture is moved to the top of the first receiving pipe by the transport component. The position of the piston inside the feed pipe is adjusted by the hydraulic cylinder to draw the sandblasting inside the sandblasting storage tank into the feed pipe and then push it into the air inlet pipe. The high-pressure blower is started to blow air into the air inlet pipe. The air and sandblasting are mixed together in the mixing pipe and then enter the output pipe.

[0009] S3: The mixture of air and sandblasting is blown into the middle plate fixing box through the output pipe to sandblast the mobile phone middle plate to remove burrs. After the burr removal operation is completed, the transport assembly drives the burr removal jig to move and turn over, and finally reaches above the second receiving pipe. The air during the burr removal operation is poured into the ash removal pipe through the filter screen and the air pipe, and the air blows the residual sandblasting in the burr removal jig after the second receiving pipe is turned over through the ash removal pipe;

[0010] S4: After the burr removal operation is completed, the mixture of air and sandblasting enters the first receiving pipe, is filtered by the filter screen in the first receiving pipe, and then enters the collection box. The air enters the ash removal pipe through the air pipe, blows the residual sandblasting in the burr removal jig into the second receiving pipe through the ash removal pipe, and then enters the collection box after being filtered by the filter screen. The air is discharged through the exhaust pipe.

[0011] S5: The spiral conveyor is started to transport the sandblasting in the collection box to the sandblasting storage tank through the conveying pipe, so that the sandblasting is recycled.

[0012] As a further optimization, the burr removal assembly comprises a feed pipe, a hydraulic cylinder, a sandblasting storage tank, a high-pressure fan and an output pipe. The output end of the hydraulic cylinder is fixedly connected with a piston, the piston is slidingly connected in the feed pipe, one end of the feed pipe is fixedly connected with a mixing pipe through an air inlet pipe, the mixing pipe is fixedly connected to the upper end face of the output pipe, one end of the sandblasting storage tank is communicated with the inside of the feed pipe through a conveying pipe, and the high-pressure fan is communicated with the inside of the air inlet pipe through an air pipe.

[0013] As a further optimization, the hydraulic cylinder and the sandblasting storage tank are both fixedly connected to the upper end face of the workbench, and the piston blocks the communication point between the sandblasting storage tank and the feed pipe in the feed pipe.

[0014] As a further optimization, the output pipe is provided with a burr removal flow channel inside, the burr removal flow channel gradually decreases in the vertical direction in the cross section of the output pipe, and the size and position of the flow channel at the bottom of the output pipe are matched with the through hole.

[0015] As a further optimization, the recycling assembly comprises a spiral conveyor, an ash removal pipe and a collection box. The spiral conveyor is installed on the collection box, so that the spiral conveyor is fixedly connected with a conveying pipe outside, one end of the conveying pipe away from the spiral conveyor is communicated with the inside of the sandblasting storage tank, one end of the first receiving pipe is fixedly connected to the rear end face of the collection box, the first receiving pipe is communicated with the ash removal pipe through an air pipe, one end of the second receiving pipe is fixedly connected to the side end face of the collection box, and the second receiving pipe is fixedly connected with an exhaust pipe outside.

[0016] As a further optimization, the communication point of the first and second receiving pipes inside the collecting box is located on both sides of the input end of the spiral conveyor, and a filter screen is installed inside each of the first and second receiving pipes.

[0017] As a further optimization, the conveying assembly comprises a first conveying component, a second conveying component, a guide flow channel and an inclined flow channel, the first and second conveying components are the same in structure and are arranged in a stepped manner inside the workbench, the first conveying component comprises a mounting table, a conveying belt and a limiting strip, the conveying belt is installed in two groups on the mounting table in an interval manner, the limiting strip is fixedly connected to the outside of the conveying belt, the guide flow channel is fixedly connected to one end of the first conveying component, the inclined flow channel is fixedly connected to the lower end surface of the guide flow channel, the inclined flow channel is arranged in an inclined manner, and an opening is formed in the inclined surface of the side adjacent to the second conveying component of the inclined flow channel.

[0018] As a further optimization, the first receiving pipe is installed inside the first conveying component, and the end of the first receiving pipe away from the collecting box is flush with the upper end surface of the mounting table on the first conveying component, and the ash removal pipe and the second receiving pipe are aligned in a vertical direction inside the workbench.

[0019] As a further optimization, the second receiving pipe is installed inside the second conveying component, and the end of the second receiving pipe away from the collecting box is flush with the upper end surface of the mounting table on the second conveying component, and the ash removal pipe and the second receiving pipe are aligned in a vertical direction inside the workbench.

[0020] As a further optimization, the supporting column is made of an elastic material, and the size of the bolt is matched with the locking groove.

[0021] (B) Beneficial effects

[0022] The application provides a sand blasting deburring process for a mobile phone middle plate, and has the following beneficial effects:

[0023] 1. The application fixes the middle plate of the mobile phone through the transportation assembly, the deburring assembly and the circulation assembly. The edge position of the middle plate of the mobile phone that needs to be deburred is exposed on the through hole of the upper fixing box and the lower fixing box after the middle plate is fixed by the middle plate fixing box. After the middle plate fixing box enters the inside of the workbench, the transportation assembly drives the middle plate fixing box to move above the first receiving pipe. A certain amount of sandblasting is introduced into the inside of the feeding pipe from the sandblasting storage tank by adjusting the position of the piston in the feeding pipe. A certain amount of sandblasting is mixed with pressurized air in the mixing pipe. The burr on the middle plate of the mobile phone is removed by the output pipe aiming at the through hole on the middle plate fixing box. The process of deburring the middle plate of the mobile phone does not need to continuously add sandblasting. The sandblasting is effectively avoided from continuously outputting when the middle plate of the mobile phone is not deburred, which causes the sandblasting to fly in the device and damages the parts in the device. The sandblasting is used quantitatively. After the sandblasting is used up, the pressurized air can blow out the residual sandblasting in the middle plate fixing box, avoiding the residual sandblasting in the middle plate fixing box affecting the reuse of the middle plate fixing box.

[0024] 2. The application is provided with a deburring flow channel in the output pipe. The deburring flow channel gradually decreases in cross section in the vertical direction inside the output pipe. The size and position of the flow channel at the bottom of the output pipe are matched with the through hole. The deburring flow channel is a flow channel with gradually decreasing inner diameter, so that the sandblasting is not easy to accumulate at the connection point of the mixing pipe and the output pipe. The gradually decreasing inner diameter of the deburring flow channel can accelerate the sandblasting and air, thereby achieving better deburring effect.

[0025] 3. The application is provided with a deburring assembly, a circulation assembly and a transportation assembly. The first transportation component transports the middle plate fixing box above the first receiving pipe. The sandblasting and air mixture after deburring enters the inside of the first receiving pipe through the through hole on the middle plate fixing box. After the sandblasting and air mixture is filtered by the filter screen, the sandblasting enters the inside of the collecting box through the first receiving pipe. The air enters the dust removal pipe through the air pipe. When the middle plate fixing box is moved above the second receiving pipe, the middle plate fixing box is turned over by 180°. The air in the dust removal pipe blows the residual sandblasting into the inside of the second receiving pipe through the through hole, and then the sandblasting and air are filtered by the filter screen in the second receiving pipe. The air is discharged through the exhaust pipe, and the sandblasting enters the inside of the collecting box through the second receiving pipe, and then is sent back to the sandblasting storage tank through the spiral conveyor and the conveying pipe to form sandblasting circulation. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a structure schematic view of the mobile phone middle plate sandblasting deburring device of the application.

[0027] Figure 2 It is a structure schematic view of the deburring assembly of the application.

[0028] Figure 3Structure diagram of the circulating assembly of the present application;

[0029] Figure 4 Structure diagram of the transportation assembly of the present application;

[0030] Figure 5 Structure diagram of the middle plate fixing box of the present application; Figure 4 Structure enlarged view of A;

[0031] Figure 6 Structure diagram of the middle plate fixing box of the present application;

[0032] Figure 7 Structure diagram of the middle plate fixing box of the present application.

[0033] In the figure: 1 processing table, 11 mounting table, 12 conveying belt, 13 limiting strip, 14 guide flow channel, 15 inclined flow channel, 16 open mouth, 2 deburring assembly, 21 feeding pipe, 22 hydraulic cylinder, 23 piston, 24 sand blasting storage tank, 25 high-pressure fan, 26 feeding pipe, 27 air inlet pipe, 28 mixing pipe, 29 output pipe, 3 middle plate fixing box, 31 upper fixing box, 32 lower fixing box, 33 locking groove, 34 supporting column, 35 bolt, 4 guide rail, 5 circulating assembly, 51 screw conveyor, 52 conveying pipe, 53 first receiving pipe, 54 dust removal pipe, 55 second receiving pipe, 56 exhaust pipe, 57 collecting box. DETAILED DESCRIPTION

[0034] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, for the purpose of explaining the present application, and should not be understood as a limitation of the present application.

[0035] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0036] In the description of the present application, it is necessary to point out that, unless otherwise explicitly specified and limited, the terms "mount", "connect", "connection" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, or electrical connection or can communicate with each other; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0038] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and arrangements of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeatedly refer to numbers and / or letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but those skilled in the art can realize the application of other processes and / or the use of other materials.

[0039] As Figures 1-7 shown, the present embodiment provides a mobile phone middle plate sandblasting deburring process, comprising the following steps:

[0040] S1: Put the mobile phone middle plate into the middle plate fixing box 3, cover the upper fixing box 31 and the lower fixing box 32 to form a deburring jig, put the deburring jig on the guide rail 4, and push it into the workbench 1;

[0041] The sand blasting deburring device for mobile phone middle plate comprises a workbench 1, a deburring assembly 2 is installed on the upper end face of the workbench 1, a circulating assembly 5 is installed outside the workbench 1, a group of guide rails 4 are fixedly connected to the two sides of the workbench 1, the guide rails 4 are used for sending a middle plate fixing box 3 into the inside of the workbench 1, the middle plate fixing box 3 comprises an upper fixing box 31 and a lower fixing box 32, a through hole corresponding to the edge or the hollow position of the mobile phone middle plate is formed in the outside of the upper fixing box 31 and the lower fixing box 32, a plurality of groups of supporting columns 34 are arranged at the bottom of the upper fixing box 31 and are used for fixing the mobile phone middle plate in the inside of the lower fixing box 32, the upper fixing box 31 and the lower fixing box 32 are fixed through locking grooves 33 and latches 35, and a conveying assembly is installed in the inside of the workbench 1;

[0042] S2: the deburring jig is moved to above the first receiving pipe 53 through the conveying assembly, the position of the piston 23 in the feeding pipe 21 is adjusted through the hydraulic cylinder 22, the sand blasting in the sand blasting storage tank 24 is sucked into the inside of the feeding pipe 21, and then is pushed into the inside of the air inlet pipe 27, the high-pressure air blower 25 is started to blow air into the inside of the air inlet pipe 27, the air is mixed with the sand blasting in the mixing pipe 28 and enters the inside of the output pipe 29;

[0043] S3: the mixture of the air and the sand blasting is blown into the inside of the middle plate fixing box 3 through the output pipe 29 to perform sand blasting deburring on the mobile phone middle plate, after the deburring is completed, the conveying assembly drives the deburring jig to move and overturn, and finally reaches above the second receiving pipe 55, the air during the deburring is poured into the inside of the ash removal pipe 54 through the filter screen and the air pipe, and the air blows away the residual sand blasting in the inside of the overturned deburring jig of the second receiving pipe 55 through the ash removal pipe 54;

[0044] S4: after the deburring operation is completed, the mixture of the air and the sand blasting enters the inside of the first receiving pipe 53, the sand blasting enters the inside of the collecting box 57 after being filtered by the filter screen in the inside of the first receiving pipe 53, the air enters the inside of the ash removal pipe 54 through the air pipe, the air blows the residual sand blasting in the inside of the deburring jig into the inside of the second receiving pipe 55 through the ash removal pipe 54, the sand blasting enters the inside of the collecting box 57 after being filtered by the filter screen, and the air is discharged through the exhaust pipe 56;

[0045] S5: the spiral conveyor 51 is started to convey the sand blasting in the inside of the collecting box 57 to the inside of the sand blasting storage tank 24 through the conveying pipe 52, so that the sand blasting is circularly used.

[0046] Specifically, after the middle plate of the mobile phone is fixed by the middle plate fixing box 3, the edge position of the mobile phone middle plate that needs to be deburred is exposed on the through hole on the upper fixing box 31 and the lower fixing box 32. After the middle plate fixing box 3 enters the inside of the workbench 1, the conveying assembly drives the middle plate fixing box 3 to move above the first receiving pipe 53. By adjusting the position of the piston 23 inside the feeding pipe 21, a certain amount of sandblasting can be made to enter the inside of the feeding pipe 21 from the sandblasting storage tank 24. A certain amount of sandblasting can be mixed with pressurized air inside the mixing pipe 28. The output pipe 29 is aligned with the through hole on the middle plate fixing box 3 to remove the burrs on the mobile phone middle plate. In the process of deburring the mobile phone middle plate, it is not necessary to continuously add sandblasting, thereby effectively avoiding the continuous output of sandblasting when the mobile phone middle plate is not deburred, thereby causing the sandblasting to fly inside the device, causing damage to the internal parts of the device. And the quantitative use of sandblasting, after the sandblasting is used up, the pressurized air can blow out the residual sandblasting inside the middle plate fixing box 3, avoiding the residual sandblasting inside the middle plate fixing box 3 affecting the reuse of the middle plate fixing box 3.

[0047] It should be noted that the amount of sandblasting required for each group of mobile phone middle plate deburring can be adjusted according to actual needs. The amount of sandblasting entering the inside of the feeding pipe 21 is controlled by controlling the time when the piston 23 releases the communication point between the feeding pipe 26 and the feeding pipe 21.

[0048] Please refer to Figure 2 The deburring assembly 2 includes a feeding pipe 21, a hydraulic cylinder 22, a sandblasting storage tank 24, a high-pressure fan 25, and an output pipe 29. The output end of the hydraulic cylinder 22 is fixedly connected with a piston 23. The piston 23 is slidingly connected inside the feeding pipe 21. One end of the feeding pipe 21 is fixedly connected with a mixing pipe 28 through an air inlet pipe 27. The mixing pipe 28 is fixedly connected to the upper end face of the output pipe 29. One end of the sandblasting storage tank 24 is communicated with the inside of the feeding pipe 21 through a feeding pipe 26. The high-pressure fan 25 is communicated with the inside of the air inlet pipe 27 through an air pipe.

[0049] Further, the hydraulic cylinder 22 and the sandblasting storage tank 24 are fixedly connected to the upper end face of the workbench 1. The piston 23 blocks the communication point between the sandblasting storage tank 24 and the feeding pipe 21 inside the feeding pipe 21.

[0050] Further, the output pipe 29 is provided with a deburring flow channel. The deburring flow channel gradually decreases in cross section in the vertical direction inside the output pipe 29. The size and position of the flow channel at the bottom of the output pipe 29 are matched with the through hole.

[0051] Specifically, after the sandblasting and air are mixed inside the mixing pipe 28, they will enter the deburring flow channel. The deburring flow channel is a flow channel with gradually decreasing inner diameter, so that the sandblasting is not easy to accumulate at the connection point between the mixing pipe 28 and the output pipe 29. At the same time, the gradually decreasing inner diameter of the deburring flow channel can accelerate the sandblasting and air, thereby achieving better deburring effect.

[0052] It should be noted that the number of flow channels inside the output pipe 29 is the same as the number of through holes on the middle plate fixing box 3, and the number of through holes on the middle plate fixing box 3 is determined by the points where the mobile phone middle plate needs to be deburred.

[0053] Please refer to Figure 3 , the circulating assembly 5 includes a screw conveyor 51, an ash removal pipe 54 and a collection box 57, the screw conveyor 51 is installed in the collection box 57 so that the screw conveyor 51 is fixedly connected with a conveying pipe 52 outside, one end of the conveying pipe 52 away from the screw conveyor 51 is communicated with the inside of the sandblasting storage tank 24, the rear end surface of the collection box 57 is fixedly connected with one end of a first material receiving pipe 53, the first material receiving pipe 53 is communicated with the ash removal pipe 54 through an air pipe, the side end surface of the collection box 57 is fixedly connected with one end of a second material receiving pipe 55, and the second material receiving pipe 55 is fixedly connected with an exhaust pipe 56 outside.

[0054] Further, the communication points of the first material receiving pipe 53 and the second material receiving pipe 55 inside the collection box 57 are located on both sides of the input end of the screw conveyor 51, and the first material receiving pipe 53 and the second material receiving pipe 55 are both provided with a filter screen inside.

[0055] Specifically, the output pipe 29 is aligned with the first material receiving pipe 53 in the vertical direction, when the middle plate fixing box 3 moves above the first material receiving pipe 53, the mobile phone middle plate inside the middle plate fixing box 3 is deburred by the deburring assembly 2, the sandblasting and air mixture after deburring will enter the inside of the first material receiving pipe 53 through the through holes on the middle plate fixing box 3, after being filtered by the filter screen, the sandblasting will enter the inside of the collection box 57 through the first material receiving pipe 53, and the air will enter the inside of the ash removal pipe 54 through the air pipe, when the middle plate fixing box 3 moves above the second material receiving pipe 55, the air inside the ash removal pipe 54 will clean the inside of the middle plate fixing box 3 through the through holes, and the residual sandblasting will be blown into the inside of the second material receiving pipe 55, after being filtered by the filter screen inside the second material receiving pipe 55, the air will be discharged through the exhaust pipe 56, and the sandblasting will enter the inside of the collection box 57 through the second material receiving pipe 55, and then be sent back to the inside of the sandblasting storage tank 24 through the screw conveyor 51 and the conveying pipe 52 to form a sandblasting circulation.

[0056] Please refer to Figure 4 and 5The transport assembly comprises a first conveying component, a second conveying component, a guide flow channel 14 and an inclined flow channel 15. The first conveying component and the second conveying component are arranged in a stepped manner inside the workbench 1. The first conveying component comprises a mounting table 11, a conveying belt 12 and a limiting strip 13. The conveying belt 12 is arranged in two groups on the mounting table 11 in an interval manner. The limiting strip 13 is fixedly connected to the outside of the conveying belt 12. The guide flow channel 14 is fixedly connected to one end of the first conveying component. The inclined flow channel 15 is fixedly connected to the lower end surface of the guide flow channel 14. The inclined flow channel 15 is arranged in an inclined manner. An opening 16 is arranged on the inclined surface of the side adjacent to the second conveying component.

[0057] Further, the first material receiving pipe 53 is arranged inside the first conveying component. The end of the first material receiving pipe 53 away from the collecting box 57 is flush with the upper end surface of the mounting table 11 on the first conveying component. The dust removal pipe 54 and the second material receiving pipe 55 are aligned in a vertical direction inside the workbench 1.

[0058] Further, the second material receiving pipe 55 is arranged inside the second conveying component. The end of the second material receiving pipe 55 away from the collecting box 57 is flush with the upper end surface of the mounting table 11 on the second conveying component. The dust removal pipe 54 and the second material receiving pipe 55 are aligned in a vertical direction inside the workbench 1.

[0059] Further, the supporting column 34 is made of an elastic material. The size of the bolt 35 is matched with the size of the locking groove 33.

[0060] Specifically, the first conveying component transports the middle plate fixing box 3 to above the first material receiving pipe 53, and then transports the middle plate fixing box 3 to inside the guide flow channel 14. The middle plate fixing box 3 falls to above the second conveying component through the opening 16 inside the inclined flow channel 15. At this time, the middle plate fixing box 3 is turned over by 180°, so that the sandblasting in the gap between the middle plate of the mobile phone and the upper fixing box 31 is blown away. After the middle plate fixing box 3 is turned over, the upper fixing box 31 and the lower fixing box 32 can be separated by pressing the bolt 35. The supporting column 34 made of an elastic material can stably support the middle plate of the mobile phone after the upper fixing box 31 and the lower fixing box 32 are separated, so that the middle plate of the mobile phone is conveniently taken down.

[0061] It should be noted that the distance between the limiting strips 13 on the two groups of conveying belts 12 outside the mounting table 11 on the first conveying component and the second conveying component is equal to the width of the middle plate fixing box 3. The transport and positioning of the middle plate fixing box 3 by the transport assembly are prior art, and will not be described again.

[0062] The mobile phone middle plate sand blasting deburring process provided by the application, through the transportation assembly, the deburring assembly 2 and the circulation assembly 5, the mobile phone middle plate is fixed through the middle plate fixing box 3, the edge position needing to be deburred on the mobile phone middle plate can be exposed on the through hole on the upper fixing box 31 and the lower fixing box 32, after the middle plate fixing box 3 enters the inside of the workbench 1, the transportation assembly drives the middle plate fixing box 3 to move above the first receiving pipe 53, a certain amount of sand blasting can enter the inside of the feeding pipe 21 from the inside of the sand blasting storage tank 24 by adjusting the position of the adjusting piston 23 in the inside of the feeding pipe 21, a certain amount of sand blasting can be mixed with the air pressurized in the mixing pipe 28, and then the output pipe 29 is aligned with the through hole on the middle plate fixing box 3 to remove the burr on the mobile phone middle plate, so that in the process of deburring the mobile phone middle plate, it is not necessary to continuously add sand blasting, thereby effectively avoiding the continuous output of sand blasting when the mobile phone middle plate is not deburred, thereby causing the sand blasting to fly in the inside of the device and causing damage to the parts in the inside of the device, and the quantitative use of sand blasting can blow out the residual sand blasting in the inside of the middle plate fixing box 3 after the sand blasting is used up, thereby avoiding the residual sand blasting in the inside of the middle plate fixing box 3, and affecting the reuse of the middle plate fixing box 3.

[0063] Secondly, the deburring flow channel is arranged in the output pipe 29, the deburring flow channel gradually decreases in the cross section in the inside of the output pipe 29 in the vertical direction, the size and position of the flow channel at the bottom of the output pipe 29 are matched with the through hole, the deburring flow channel is a flow channel with gradually decreasing inner diameter, so that the sand blasting is not easy to accumulate at the connection point of the mixing pipe 28 and the output pipe 29, and the gradually decreasing inner diameter of the deburring flow channel can accelerate the sand blasting and air, thereby achieving better deburring effect.

[0064] Moreover, the deburring assembly 2, the circulation assembly 5 and the transportation assembly are arranged, the first transportation component can transport the middle plate fixing box 3 above the first receiving pipe 53, the sand blasting and air mixture after deburring can enter the inside of the first receiving pipe 53 through the through hole on the middle plate fixing box 3, after the sand blasting and air mixture is filtered by the filter screen, the sand blasting can enter the inside of the collecting box 57 through the first receiving pipe 53, the air can enter the inside of the dust removal pipe 54 through the air pipe, when the middle plate fixing box 3 is moved above the second receiving pipe 55, the middle plate fixing box 3 is turned over by 180°, the air in the inside of the dust removal pipe 54 can clean the inside of the middle plate fixing box 3 again, the residual sand blasting is blown into the inside of the second receiving pipe 55, after the sand blasting and air are filtered by the filter screen in the inside of the second receiving pipe 55, the air is discharged through the exhaust pipe 56, the sand blasting enters the inside of the collecting box 57 through the second receiving pipe 55, and then is sent back to the inside of the sand blasting storage tank 24 through the screw conveyor 51 and the conveying pipe 52 to form sand blasting circulation

[0065] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A process for deburring of a mobile phone mid-plate by sand blasting, the process comprising: The method comprises the following steps: ​ The sand blasting deburring device for mobile phone middle plate comprises a workbench (1), a deburring assembly (2) is installed on the upper end face of the workbench (1), a circulating assembly (5) is installed outside the workbench (1), a group of guide rails (4) are fixedly connected to the two sides of the workbench (1), the guide rails (4) are used for sending a middle plate fixing box (3) into the inside of the workbench (1), the middle plate fixing box (3) comprises an upper fixing box (31) and a lower fixing box (32), a through hole corresponding to the edge or the hollow position of the mobile phone middle plate is formed in the outside of the upper fixing box (31) and the lower fixing box (32), a plurality of groups of supporting columns (34) are arranged at the bottom of the upper fixing box (31) and are used for fixing the mobile phone middle plate in the inside of the lower fixing box (32), the upper fixing box (31) and the lower fixing box (32) are fixed through locking grooves (33) and latches (35), and a conveying assembly is installed in the inside of the workbench (1); The conveying assembly comprises first conveying components, second conveying components, a guide flow channel (14) and an inclined flow channel (15), the first conveying components and the second conveying components are the same in structure and are arranged in the inside of the workbench (1) in a stepped manner; The deburring assembly (2) comprises a feeding pipe (21), a hydraulic cylinder (22), a sand blasting storage tank (24), a high-pressure fan (25) and an output pipe (29), the output end of the hydraulic cylinder (22) is fixedly connected with a piston (23), the piston (23) is slidably connected in the inside of the feeding pipe (21), one end of the feeding pipe (21) is fixedly connected with a mixing pipe (28) through an air inlet pipe (27), the mixing pipe (28) is fixedly connected to the upper end face of the output pipe (29), one end of the sand blasting storage tank (24) is communicated with the inside of the feeding pipe (21) through a material conveying pipe (26), and the high-pressure fan (25) is communicated with the inside of the air inlet pipe (27) through an air pipe. The circulating assembly (5) comprises a spiral conveyor (51), an ash removal pipe (54) and a collection box (57), the spiral conveyor (51) is installed in the collection box (57), the spiral conveyor (51) is fixedly connected with a conveying pipe (52) outside, one end of the conveying pipe (52) away from the spiral conveyor (51) is communicated with the inside of the sand blasting storage tank (24), one end of a first material receiving pipe (53) is fixedly connected to the rear end face of the collection box (57), the first material receiving pipe (53) is communicated with the ash removal pipe (54) through an air pipe, one end of a second material receiving pipe (55) is fixedly connected to the side end face of the collection box (57), and the second material receiving pipe (55) is fixedly connected with an exhaust pipe (56) outside; S1: the mobile phone middle plate is placed in the inside of the middle plate fixing box (3), the upper fixing box (31) and the lower fixing box (32) are closed to form a deburring jig, the deburring jig is placed on the guide rails (4) and is pushed into the inside of the workbench (1); S2: The deburring tool is moved to above the first receiving pipe (53) by the conveying assembly, the position of the piston (23) in the feeding pipe (21) is adjusted by the hydraulic cylinder (22), the blasting sand in the blasting sand storage tank (24) is sucked into the feeding pipe (21), and then pushed into the air inlet pipe (27), the high-pressure air blower (25) is started to blow air into the air inlet pipe (27), and the air is mixed with the blasting sand in the mixing pipe (28) and enters the output pipe (29); S3: The mixture of air and blasting sand is blown into the middle plate fixing box (3) through the output pipe (29) to sand blast the mobile phone middle plate, after the deburring is completed, the conveying assembly drives the deburring tool to move and overturn, and finally reaches above the second receiving pipe (55), the air during deburring is poured into the ash removal pipe (54) through the filter screen and the air pipe, and the air blows away the residual blasting sand in the deburring tool after the second receiving pipe (55) is overturned through the ash removal pipe (54); S4: After the deburring operation is completed, the mixture of air and blasting sand enters the first receiving pipe (53), is filtered by the filter screen in the first receiving pipe (53), and then enters the collecting box (57), the air enters the ash removal pipe (54) through the air pipe, the residual blasting sand in the deburring tool is blown into the second receiving pipe (55) through the ash removal pipe (54), the blasting sand is filtered by the filter screen and then enters the collecting box (57), and the air is discharged through the exhaust pipe (56); S5: The spiral conveyor (51) is started to convey the blasting sand in the collecting box (57) to the blasting sand storage tank (24) through the conveying pipe (52), so that the blasting sand is recycled.

2. The process for deburring of a mobile phone middle plate by sand blasting as claimed in claim 1 wherein: The hydraulic cylinder (22) and the blasting sand storage tank (24) are fixedly connected to the upper end face of the workbench (1), and the piston (23) blocks the communication point between the blasting sand storage tank (24) and the feeding pipe (21) in the feeding pipe (21).

3. The process of claim 1, wherein: The output pipe (29) is provided with a deburring flow channel, the deburring flow channel gradually decreases in the vertical direction in the cross section of the output pipe (29), and the size and position of the flow channel at the bottom of the output pipe (29) are matched with the through hole.

4. The process of claim 1, wherein: The communication point of the first receiving pipe (53) and the second receiving pipe (55) in the collecting box (57) is located on both sides of the input end of the spiral conveyor (51), and the first receiving pipe (53) and the second receiving pipe (55) are both provided with a filter screen.

5. The process of claim 1, wherein: The first conveying component comprises a mounting table (11), a conveying belt (12) and a limiting strip (13), the conveying belt (12) is installed on the mounting table (11) in two groups, the limiting strip (13) is fixedly connected to the outside of the conveying belt (12), the guide flow channel (14) is fixedly connected to one end of the first conveying component, the inclined flow channel (15) is fixedly connected to the lower end face of the guide flow channel (14), the inclined flow channel (15) is inclinedly arranged, and the inclined flow channel (15) is provided with an opening (16) on the inclined surface adjacent to one side of the second conveying component.

6. The process of claim 5, wherein: The first receiving pipe (53) is installed inside the first conveying component, and the end of the first receiving pipe (53) away from the collecting box (57) is flush with the upper end surface of the mounting table (11) on the first conveying component, and the dust removal pipe (54) and the second receiving pipe (55) are vertically aligned inside the workbench (1).

7. The process of claim 5, wherein: The second receiving pipe (55) is installed inside the second conveying component, and the end of the second receiving pipe (55) away from the collecting box (57) is flush with the upper end surface of the mounting table (11) on the second conveying component, and the dust removal pipe (54) and the second receiving pipe (55) are vertically aligned inside the workbench (1).

8. The process of claim 7, wherein: The support column (34) is made of elastic material, and the size of the bolt (35) is matched with the locking groove (33).

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