A sandblasting device for notebook computer housing

Abstract

The present application relates to the technical field of sand blasting, and discloses a sand blasting device for notebook computer shell, which comprises a rack, a workbench with a flow inlet is slidably connected to the rack through a driving mechanism, and a drying box covering the flow inlet is arranged at the bottom of the workbench; a scraping device corresponding to the flow inlet is slidably installed on the workbench, an inclined track corresponding to the scraping device is fixedly installed on the rack, the scraping device is connected with the inclined track through a sliding plate, and the scraping device comprises a scraper plate slidably abutting against the top surface of the workbench. The driving mechanism is used for reciprocating movement of the shell, the scraper plate is used for scraping and cleaning the sand and water falling on the workbench, the sand is automatically collected during the sand blasting process, and the accumulation of the sand is avoided; moreover, the sand can be immediately dried, the collected sand does not need to be transferred to a drying device, and the operation of transferring the sand is saved.

Description

Technical Field

[0001] The invention relates to the technical field of sandblasting, in particular to sandblasting equipment for a notebook computer shell. Background Art

[0002] Sand blasting uses compressed air as the power to form a high-speed jet beam to spray sand (such as copper ore sand, quartz sand, corundum, iron sand, Hainan sand) at high speed onto the surface of the workpiece to be processed. Due to the impact and cutting effect of the sand on the workpiece surface, the surface of the workpiece obtains a certain degree of cleanliness and different roughness, so that the mechanical properties of the workpiece surface are improved.

[0003] During the production of laptop metal casings, the outer surface of the casing is typically sandblasted using sandblasting equipment to improve the casing's fatigue resistance or enhance its decorative effect. However, sandblasting generates a large amount of dust, which can pose significant risks to the surrounding environment and human health. Therefore, prior art sandblasting methods incorporate a water source. Under the influence of compressed air, water and sand are sprayed from a nozzle along a predetermined path onto the casing surface to achieve the desired processing goal. The water absorbs the dust, significantly reducing the risk to the surrounding environment and human health.

[0004] Although spraying water and abrasive together can reduce the harm to the surrounding environment and human body, in the field of sandblasting, abrasive will be recycled in large quantities for next use. In the process of recycling abrasive mixed with water, the existing technology has the following unavoidable technical disadvantages:

[0005] As is well known, when recycling sand, it is done while sandblasting. A collection box for collecting sand is provided under the workbench, and an inlet is provided between the workbench and the collection box. Ideally, the sand is sprayed onto the shell and then bounces off and enters the collection box through the inlet to be collected. However, since the sand and water are scattered after being sprayed onto the shell and bounce off, for sand containing water, the scattered sand and water inevitably fall on the workbench. Under the action of water, the sand adheres stably to the workbench and is difficult to fall into the collection box through the inlet, which makes it difficult to collect the sand during the sandblasting process. A large amount of sand accumulates on the workbench, increasing the difficulty of cleaning the workbench later. Therefore, how to make the sand mixed with water enter the collection box more smoothly for collection during the sandblasting process is a technical problem that needs to be solved urgently. Summary of the Invention

[0006] The purpose of the present invention is to provide a sandblasting device for a notebook computer housing to solve the above-mentioned deficiencies in the prior art.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a sandblasting device for a laptop computer housing, comprising a frame, a workbench with an inlet slidably connected to the frame via a driving mechanism, and a drying box covering the inlet provided at the bottom of the workbench;

[0008] A scraping device corresponding to the inlet is slidably installed on the workbench, and an inclined track corresponding to the scraping device is fixedly installed on the frame. The scraping device is linked to the inclined track through a sliding plate. The scraping device includes a scraper that slides against the top surface of the workbench. During the process of the driving mechanism driving the workbench to slide back and forth for sandblasting, the inclined track drives the scraping device to slide back and forth in the direction of the inlet to push the sand material through the inlet and fall into the drying box.

[0009] The above-mentioned sandblasting equipment for laptop computer shell, the top and bottom of the drying box are open, and the bottom open opening of the drying box is detachably installed with a sealing plate, and a plurality of filter holes are opened on the sealing plate to allow water falling into the drying box to pass through the filter holes and the sand falling into the drying box to remain in the drying box.

[0010] The above-mentioned sandblasting equipment for laptop computer shells, the scraping device also includes a sliding member, the sliding member passes through the workbench, and the workbench is provided with a guide hole for the sliding member to slide. The lower half of the sliding member is located in the drying box and does not abut the bottom of the inner cavity of the drying box so that the sliding member is driven to flatten the sand material accumulated in the drying box during the reciprocating sliding of the scraping device.

[0011] The above-mentioned sandblasting equipment for laptop computer shells has two inlets and two scraping devices, which correspond to each other. A fixed platform for placing the shell is fixed on the workbench. The fixed platform is located between the two inlets. The two inlets are located between the upper halves of the two sliding members. The upper halves of the sliding members extend above the workbench to block the sprayed sand material, so that the sand material falls between the upper halves of the two sliding members.

[0012] The above-mentioned sandblasting equipment for laptop computer shell, the sliding part includes an upper baffle, a through piece, a connecting plate, and a spreading plate fixedly connected in sequence from top to bottom, the upper baffle is located above the workbench, the through piece slides through the workbench through the guide hole, the spreading plate is located in the drying box for flattening the sand material, one end of the sliding plate is fixedly connected to the connecting plate, and the other end is slidably engaged with the inclined track, and the workbench is provided with a socket for the sliding plate to slide into.

[0013] The above-mentioned sandblasting equipment for laptop computer shell, the scraper is slidably set at the bottom of the upper baffle through multiple vertical rods, the top ends of the multiple vertical rods are slidably inserted in the upper baffle, and the bottom ends are fixedly connected to the scraper, and multiple compression springs are connected between the scraper and the upper baffle. Based on the elastic force of the compression springs, the bottom of the scraper is driven to elastically abut against the top of the workbench.

[0014] In the above-mentioned sandblasting equipment for notebook computer housing, when the scraping device slides toward the inlet to a specific position, the scraper blocks the inlet to reduce the heat loss when the drying box dries the sand material.

[0015] In the above-mentioned sandblasting equipment for the notebook computer shell, the width of the guide hole is less than mm, and the water vapor generated when the sand material is dried in the drying box is discharged through the guide hole.

[0016] The above-mentioned sandblasting equipment for the laptop computer shell has an upward-curved arc plate integrally formed on the side of the scraper away from the inlet. When the scraper blocks the inlet, the outer side surface of the arc plate abuts against the side of the inlet so that the scraper can slide out of the inlet when the scraping device slides in the direction away from the inlet.

[0017] The above-mentioned sandblasting equipment for laptop computer shell has a limit plate rotatably provided on both sides of the left and right sides of the drying box, and the tops of the two limit plates abut against the bottom of the blocking plate so that the blocking plate blocks the bottom opening of the drying box.

[0018] Beneficial effect: In the above technical solution, the present invention provides a sandblasting equipment for a laptop computer shell, which is achieved by slidingly connecting the workbench with the frame and slidingly setting a scraping device on the workbench, and the scraping device is connected to the inclined track fixedly installed on the frame, so that when the driving mechanism drives the workbench to slide back and forth, it can drive the scraping device to slide back and forth, and the sliding direction of the scraping device is in the direction of the inlet, so that the sand and water falling on the top of the workbench can be scraped into the inlet during the reciprocating sliding of the scraping device, and the initial function of the reciprocating sliding of the workbench is to drive the shell to move back and forth so that the shell can be widely sandblasted, which is necessary in the sandblasting process. The present invention utilizes this necessary operation to scrape the sand and water that fall on the top of the workbench into the inlet. Since the sand and water on the top of the workbench are cleaned by the scraper, even if the sand adheres to the workbench under the action of water, it can be scraped into the inlet and then fall into the drying box for collection. It can be seen that the present invention cleverly utilizes the driving mechanism to reciprocate the shell, so that the scraper can scrape and clean the sand and water that fall on the workbench to realize automatic collection of the sand during the sandblasting process, without causing the accumulation of sand, thereby effectively solving the shortcomings of the prior art.

[0019] At the same time, the present invention cleverly collects sand materials through a drying box, so that the drying box replaces the setting of the collection box. Moreover, the use of the drying box to collect sand materials makes it possible to immediately dry the collected sand materials after sandblasting is completed. There is no need to transfer the collected sand materials to the drying equipment, which saves the operation of transferring the sand materials, thereby achieving an unexpected technical effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 A schematic diagram of the structure of a sandblasting device for a notebook computer housing provided by an embodiment of the present invention when viewed from the front;

[0022] Figure 2 The embodiment of the present invention provides Figure 1 A schematic diagram of the enlarged structure of part A in FIG;

[0023] Figure 3 The embodiment of the present invention provides Figure 1 Schematic diagram of the enlarged structure of part B;

[0024] Figure 4 A schematic diagram of a disassembled sandblasting device for a notebook computer housing provided by an embodiment of the present invention;

[0025] Figure 5 A schematic diagram of the structure of the workbench, fixed table and drying box provided in an embodiment of the present invention;

[0026] Figure 6 A schematic diagram of the structure of the scraping device and the interior of the drying box provided in an embodiment of the present invention;

[0027] Figure 7 The embodiment of the present invention provides Figure 6 Schematic diagram from above after removing the drying box;

[0028] Figure 8 A schematic diagram of the structure between the scraper, the compression spring and the vertical rod provided in an embodiment of the present invention;

[0029] Figure 9 A schematic diagram of the disassembly of the sliding member and the sliding plate provided in an embodiment of the present invention;

[0030] Figure 10 A schematic diagram of the structure of a sandblasting device for a notebook computer housing provided by an embodiment of the present invention when viewed from above;

[0031] Figure 11 The structure schematic diagram of the sand blasting equipment for the notebook computer shell is provided by the embodiment of the present application.

[0032] Explanation of reference signs:

[0033] 1, rack; 101, flow guide pipe; 102, first support plate; 103, second support plate; 2, drying box; 3, workbench; 301, flow inlet; 302, guide hole; 303, sliding plate; 304, groove; 305, insertion hole; 4, inclined rail; 5, support frame; 501, slide; 6, sliding plate; 601, extension plate; 7, sliding piece; 701, upper baffle; 702, through piece; 703, connecting plate; 704, flattening plate; 705, air hole; 8, scraper; 801, arc plate; 9, fixing table; 10, top plate; 11, air cylinder; 12, spray head; 13, hose; 14, lead screw; 15, motor; 16, vertical rod; 17, compression spring; 18, blocking plate; 19, limiting plate; 20, electric heating plate; 21, protruding block. DETAILED DESCRIPTION

[0034] In order for those skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the drawings.

[0035] As shown in Figure 1-11 The sand blasting equipment for the notebook computer shell provided by the embodiment of the present application comprises a rack 1, a workbench 3 with a flow inlet 301 is slidably connected to the rack 1 through a driving mechanism, and a drying box 2 is arranged at the bottom of the workbench 3 and covers the flow inlet 301.

[0036] A scraping device corresponding to the flow inlet 301 is slidably arranged on the workbench 3, an inclined rail 4 corresponding to the scraping device is fixedly arranged on the rack 1, the scraping device is connected with the inclined rail 4 through a sliding plate 6, the scraping device comprises a scraper 8 slidably abutting against the top surface of the workbench 3, and the driving mechanism drives the workbench 3 to reciprocally slide to perform the sand blasting process, and the inclined rail 4 drives the scraping device to reciprocally slide in the direction of the flow inlet 301 to push the sand material to fall into the drying box 2 through the flow inlet 301.

[0037] The sandblasting equipment for a notebook computer shell provided in this embodiment is used for sandblasting the outer surface of a metal shell of a notebook computer. The words related to directions and positions involved in this embodiment are relative to the accompanying drawings. Specifically, multiple groups of first support plates 102 are fixedly installed on the frame 1, and a top plate 10 is fixedly installed on one group of the first support plates 102. A sandblasting assembly is provided on the top plate 10, and the sandblasting assembly includes a nozzle 12, a hose 13, a cylinder 11, a sand box, a water tank and an air compressor (the sand box, water tank and air compressor are all existing technologies, not shown in the figure, and will not be repeated). The nozzle 12 is slidably set on the top plate 10, one end of the hose 13 is connected to the nozzle 12, and the other end is connected to the output end of the air compressor, the input end of the air compressor is connected to the sand box and the water tank, and the output end of the cylinder 11 is connected to the nozzle 12. By starting the air compressor, sand and water can be sprayed from the nozzle 12. The nozzle 12 is located above the shell, so that the mixture of sand and water is sprayed onto the outer surface of the shell for sandblasting. Starting the cylinder 11 can drive the nozzle 12 to slide back and forth so that the spray range of the nozzle 12 covers the entire width of the shell. The driving mechanism provided on the frame 1 includes a motor 15 fixedly mounted on the frame 1, the output shaft of the motor 15 is coaxially connected to the screw 14, the screw 14 and the output shaft of the motor 15 are connected or fixedly connected via a coupling, a second support plate 103 is fixedly mounted on the frame 1, the free end of the screw 14 is rotatably connected to the second support plate 103, the screw 14 threadedly passes through the workbench 3, and a threaded hole for screwing with the screw 14 is provided on the workbench 3, the motor 15 can rotate forward and reverse, thereby driving the screw 14 to rotate forward and reverse, and the forward and reverse rotation of the screw 14 drives the workbench 3 to slide back and forth in the axial direction of the screw 14 (i.e., the length direction of the shell), and the shell is placed on the workbench 3, thereby driving the shell to slide back and forth so that the spray range of the nozzle 12 covers the entire length of the shell again. Therefore, through the reciprocating sliding of the nozzle 12 and the reciprocating sliding of the workbench 3, the spray range of the nozzle 12 can cover the entire shell, so that the shell surface is fully sandblasted. Among them, two support frames 5 arranged opposite to each other are fixedly mounted on the frame 1. The tops of the two support frames 5 are provided with slideways 501. Two slide plates 303 are fixedly mounted on the bottom of the workbench 3 and are slidably connected to the two slideways 501 in a one-to-one manner. The sliding connection between the two slide plates 303 and the two slideways 501 is used to realize the sliding of the workbench 3 and the frame 1. The inclined rails 4 are fixedly mounted on the first support plate 102. There are two inclined rails 4. The two inclined rails 4 are symmetrically arranged and tilted inward along the sliding direction of the workbench 3. The workbench 3 is located between the two inclined rails 4. The scraping device is used to scrape sand and water that fall on the top of the workbench 3. The inlet 301 is connected to the inner cavity of the drying box 2 to allow the scraped sand and water to enter the drying box 2 through the inlet 301. At the same time, some of the ejected sand and water fall directly into the inlet 301 and enter the drying box 2. This part of the sand and water does not need to be scraped by the scraping device.The sliding power of the scraping device comes from the power generated when the workbench 3 slides. Specifically, through the setting of the sliding plate 6, a linkage is generated between the scraping device and the inclined track 4. When the workbench 3 slides, it can drive the sliding plate 6 to move synchronously. Since the inclined track 4 is fixed and inclined, the sliding force of the workbench 3 can be partially transmitted to the sliding plate 6 so that the sliding plate 6 drives the scraping device to slide, and the sliding direction of the scraping device is in the direction of the inlet 301, and the scraping device includes a scraper 8 that slides against the top surface of the workbench 3, so that when the scraping device slides, it can drive the scraper 8 to slide, so that the scraper 8 pushes the sand and water falling on the workbench 3 to the inlet 301 so that the sand and water enter the inlet 301 and enter the drying box 2 through the inlet 301 for collection. Due to the limited spray range of the nozzle 12, the workbench 3 needs to drive the shell to slide back and forth multiple times during the sandblasting process. Each reciprocating slide can drive the scraping device to scrape the sand and water on the workbench 3 once. Therefore, during the sandblasting process, the scraping device can scrape and clean the sand and water on the workbench 3 multiple times, thereby greatly improving the cleaning effect of the workbench 3. Because the sand and water on the workbench 3 are cleaned by the scraping action of the scraper 8, even if the sand is stably attached to the workbench 3 under the action of water, it can be scraped into the drying box 2 by the scraper 8 for collection, without causing sand accumulation and increasing the difficulty of cleaning the workbench 3 later. Moreover, the power for the scraping device to scrape the sand and water comes from the sliding of the workbench 3. The sliding of the workbench 3 is a necessary operation during the sandblasting process, so no additional driving equipment is required.

[0038] Thus, it can be seen that in this embodiment, the workbench 3 is slidably connected to the frame 1, and a scraping device is slidably arranged on the workbench 3, and the scraping device is connected to the inclined track 4 fixedly installed on the frame 1, so that when the driving mechanism drives the workbench 3 to slide back and forth, the scraping device can be driven to slide back and forth, and the sliding direction of the scraping device is in the direction of the inlet 301, so that the sand and water falling on the top of the workbench 3 can be scraped into the inlet 301 during the reciprocating sliding of the scraping device. The original function of the reciprocating sliding of the workbench 3 is to drive the shell to move back and forth so that the shell can be widely sandblasted, which is a necessary operation in the sandblasting process, and the present invention utilizes this The necessary operation also plays the role of scraping the sand and water falling on the top of the workbench 3 into the inlet 301. Since the sand and water on the top of the workbench 3 are cleaned by the scraper 8 in a scraping manner, even if the sand adheres to the workbench 3 under the action of water, it can be scraped into the inlet 301 and then fall into the drying box 2 for collection. It can be seen that the present invention cleverly uses the driving mechanism to reciprocate the shell, so that the scraper 8 can scrape and clean the sand and water falling on the workbench 3 to realize automatic collection of the sand during the sandblasting process, without causing sand accumulation, thereby effectively solving the shortcomings of the prior art.

[0039] Meanwhile, since the sand is mixed with water, the sand needs to be dried for next use when the sand is recycled. In the prior art, when the sand is dried, the water and sand sprayed fall into a collecting box, and then the collected sand is transferred to a drying device for drying. However, the sand needs to be transferred for a long time. Therefore, the sand is collected by the drying box 2, the drying box 2 replaces the setting of the collecting box, and the sand is collected by the drying box 2, so that the collected sand can be dried immediately after sand blasting, without the need to transfer the collected sand to the drying device, and the operation of transferring the sand is saved, thereby achieving unexpected technical effects.

[0040] The bottom of the workbench 3 is provided with an electric heating plate 20. The electric heating plate 20 is a prior art, and will not be described in detail. The electric heating plate 20 is located in the inner cavity of the drying box 2, and the sand in the drying box 2 is dried by the heat generated by the electric heating plate 20. Of course, other heating devices can also be used to heat the inner cavity of the drying box 2, which will not be described in detail.

[0041] In this embodiment, the top and bottom of the drying box 2 are open. The bottom opening of the drying box 2 is detachably provided with a blocking plate 18. A plurality of filter holes are formed in the blocking plate 18 to allow the water falling into the drying box 2 to pass through the filter holes, and the sand falling into the drying box 2 to remain in the drying box 2. Specifically, the blocking plate 18 is used to block the bottom opening of the drying box 2 to receive the sand and water falling into the drying box 2. The filter holes are used to filter most of the water in the sand, so that the sand after filtering the water remains on the blocking plate 18, that is, in the drying box 2. The filtered water falls on the rack 1 and is collected. Since the water is greatly filtered by the filter holes, the content of water in the sand can be greatly reduced to reduce the drying time of the sand.

[0042] In this embodiment, the scraping device further includes a sliding member 7, which passes through the workbench 3. The workbench 3 is provided with a guide hole 302 for the sliding member 7 to slide. The lower half of the sliding member 7 is located in the drying box 2 and does not abut against the bottom of the inner cavity of the drying box 2, so that the sliding member 7 is driven to flatten the sand material accumulated in the drying box 2 during the reciprocating sliding of the scraping device. Specifically, as is well known, when the sand material falls directly into the drying box 2, the sand material with high humidity will accumulate in a large amount at a specific position in the drying box. The accumulation of the sand material results in a smaller contact area between the sand material and the air, thereby slowing the evaporation rate of the water during drying, and requiring a longer time to completely dry the sand material. This is a technical problem caused by not transferring the sand material (the sand material can be flattened when it is transferred). The present invention utilizes the reciprocating sliding of the scraping device to enable the lower half of the slider 7 to slide back and forth within the drying box 2. The sliding force of the slider 7 can spread the accumulated sand material, and the spread sand material is spread flat on the blocking plate 18, thereby increasing the contact area between the sand material and the air, greatly improving the drying speed, saving drying time, and effectively solving the above-mentioned technical problems. It can be seen that the present invention can achieve a faster drying speed for the sand material without transferring the sand material.

[0043] In this embodiment, there are two inlets 301 and two scraping devices, each with a one-to-one correspondence. A fixed platform 9 for placing the housing is fixed to the workbench 3. The fixed platform 9 is located between the two inlets 301, and the two inlets 301 are located between the upper halves of the two slides 7. The upper halves of the slides 7 extend above the workbench 3 to block the ejected sand material, causing it to fall between the upper halves of the two slides 7. Specifically, the housing is covered on the fixed platform 9. The shape of the fixed platform 9 is adapted to the concave shape of the housing to improve the stability of the housing on the fixed platform 9. It is also possible to add suction holes on the fixed platform 9 to absorb the housing, thereby further improving the stability of the housing. This will not be described in detail. Because the upper half of the sliding member 7 extends above the workbench 3, and the two inlets 301 and the fixed platform 9 are both located between the upper halves of the two sliding members 7, during sandblasting, the sprayed sand and water can be blocked by the upper half of the sliding member 7, so that the sand and water are confined between the upper halves of the two sliding members 7, preventing sand from splashing and contaminating the sandblasting equipment, while increasing the recovery rate of sand.

[0044] Among them, the sliding member 7 includes an upper baffle 701, a through piece 702, a connecting plate 703, and a spreading plate 704 which are fixedly connected in sequence from top to bottom. The upper baffle 701 is located above the workbench 3. The upper baffle 701 and the connecting plate 703 are fixedly connected by the through piece 702. There are two through pieces 702 to improve the connection firmness between the upper baffle 701 and the connecting plate 703. The number of guide holes 302 is the same as the number of through pieces 702 and corresponds one to one. The through piece 702 slides through the workbench 3 through the guide hole 302. The spreading plate 704 is located in the drying box 2 for flattening the sand material. One end of the sliding plate 6 is fixedly connected to the connecting plate 703, and the other end is slidably engaged with the inclined track 4. A socket 305 for sliding the sliding plate 6 is provided on the workbench 3. Specifically, the bottom of the workbench 3 is provided with two grooves 304 corresponding to the two connecting plates 703, and the top of the connecting plate 703 slides and abuts against the top surface of the groove 304. The function of the groove 304 is to reduce the thickness of the workbench 3, thereby increasing the top height of the connecting plate 703, so that the sliding plate 6 can slide through the insertion hole 305 and be fixedly connected to the connecting plate 703. The inner wall of the insertion hole 305 slides and abuts against the outer side surface of the connecting plate 703 so that the connecting plate 703 can only slide left and right. One end of the sliding plate 6 is located outside the insertion hole 305 and is integrally provided with an extension plate 601 adapted to the inclined track 4. The extension plate 601 is slidably engaged in the inclined track 4, and the sliding engagement of the extension plate 601 with the inclined track 4 is utilized to realize the sliding of the sliding plate 6 and the inclined track 4. The dynamic locking and sliding locking function is that when the sliding plate 6 slides, the inclined track 4 can push the sliding plate 6 to slide inward (referring to the inner side of the socket 305), and when the sliding plate 6 slides in the opposite direction, the inclined track 4 can also generate an outward pulling force on the sliding plate 6, and the sliding plate 6 slides following the sliding of the workbench 3, so that in the process of reciprocating sliding of the workbench 3, the two sliding plates 6 can slide synchronously toward the inner side of the socket 305 and synchronously toward the outer side of the socket 305. When the two sliding plates 6 slide synchronously toward the inner side of the socket 305, they can drive the two scraping devices to slide relative to each other. At this time, the two scraping devices slide toward the two inlets 301 respectively, thereby driving the two scrapers 8 to push the sand and water on the workbench 3 into the two inlets 301, and finally fall into the drying box 2 for collection.

[0045] Furthermore, the scraper 8 is slidably set at the bottom of the upper baffle 701 through a plurality of vertical rods 16. The top ends of the plurality of vertical rods 16 are slidably inserted into the upper baffle 701, and the bottom ends are fixedly connected to the scraper 8. A plurality of compression springs 17 are connected between the scraper 8 and the upper baffle 701. Based on the elastic force of the compression springs 17, the bottom of the scraper 8 is elastically abutted against the top of the workbench 3 to ensure that there is a certain extrusion pressure between the bottom of the scraper 8 and the top of the workbench 3, while allowing the scraper 8 to slide smoothly.

[0046] Further, when the scraping device slides to a specific position towards the flow inlet 301, the scraper 8 blocks the flow inlet 301 to reduce the heat loss of the drying box 2 when drying the sand. Specifically, since the drying box 2 is connected with the outside through the flow inlet 301, the flow inlet 301 needs to maintain a certain width to ensure that the sand and water can flow into the drying box 2 smoothly, and the too large width of the flow inlet 301 will cause the opening of the drying box 2 to be too large, so that the heat in the drying box 2 is lost too fast, thereby failing to dry the sand. Therefore, the sliding of the scraper 8 is used to cleverly block the flow inlet 301, thereby greatly reducing the opening size of the drying box 2 to reduce the heat loss. The timing of the drying box 2 to dry the sand is as follows: after the sandblasting operation is completed, the workbench 3 is slid towards the second support plate 103 through the driving mechanism, at this time, the two sliding plates 6 are driven to slide towards the inner side of the insertion hole 305 under the action of the two inclined rails 4, and the two sliding plates 6 push the two scraping devices to slide towards the corresponding flow inlet 301, in this process, the two scrapers 8 constantly push the sand and water on the workbench 3 to the flow inlet 301, and the leveling plate 704 levels the sand in the drying box 2, until the two scrapers 8 block the two flow inlets 301, the workbench 3 stops sliding, at this time, the two flow inlets 301 are blocked, then the electric heating plate 20 is started to heat the inner cavity of the drying box 2 to dry the sand, and the water vapor generated during drying is discharged through the guide hole 302.

[0047] Wherein, the leveling plate 704 is provided with a ventilation hole 705 for heat to pass through.

[0048] Meanwhile, when the two scrapers 8 block the two flow inlets 301, the fixed table 9 is staggered with the spray head 12, so that the shell can be smoothly taken off from the fixed table 9.

[0049] In the embodiment, the width of the guide hole 302 is less than 3mm, and the water vapor generated when the drying box 2 dries the sand is discharged through the guide hole 302, and the small width of the guide hole 302 ensures that the heat loss in the drying box 2 is small enough.

[0050] In the embodiment, the side of the scraper 8 away from the flow inlet 301 is integrally formed with an upwardly curved plate 801, when the scraper 8 blocks the flow inlet 301, the outer side of the curved plate 801 abuts against the side of the flow inlet 301, so that the scraper 8 can slide out of the flow inlet 301 when the scraping device slides away from the flow inlet 301.

[0051] In the embodiment, the drying box 2 is rotatably provided with a limiting plate 19 on the left and right sides, and the top of the two limiting plates 19 abuts against the bottom of the blocking plate 18 to block the bottom opening of the drying box 2. Specifically, the drying box 2 is fixedly provided with a protrusion 21 on the left and right sides, and the two protrusions 21 correspond to the two limiting plates 19, and the limiting plate 19 is rotatably arranged below the protrusion 21. When the two limiting plates 19 are rotated below the blocking plate 18, the blocking plate 18 can be installed on the bottom of the drying box 2 under the support of the two limiting plates 19 to block the bottom opening of the drying box 2. When the two limiting plates 19 are rotated to be staggered with the blocking plate 18, the blocking plate 18 can be separated from the drying box 2, so that the blocking plate 18 can be disassembled, and the dried sand can be taken out from the blocking plate 18 after the blocking plate 18 is disassembled. The top of the blocking plate 18 is provided with a containing groove for containing sand, so that the sand will not be spilled when the blocking plate 18 is disassembled.

[0052] The machine frame 1 is provided with a containing pool for containing the filtered water, and the filtered water through the filtering holes of the blocking plate 18 falls into the containing pool for collection. The machine frame 1 is provided with a flow guide pipe 101 connected with the containing pool for discharging the collected water in the containing pool.

[0053] The above only describes some exemplary embodiments of the application by way of illustration, and it is needless to say that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the application. Therefore, the above drawings and descriptions are illustrative in nature and should not be understood as limiting the scope of the claims of the application.

Claims

1. A sandblasting device for a notebook computer housing, comprising a frame (1), characterized in that: A workbench (3) with an inlet (301) is slidably connected to the frame (1) via a driving mechanism, and a drying box (2) covering the inlet (301) is provided at the bottom of the workbench (3); A scraping device corresponding to the inlet (301) is slidably mounted on the workbench (3); an inclined track (4) corresponding to the scraping device is fixedly mounted on the frame (1); the scraping device is linked to the inclined track (4) via a sliding plate (6); the scraping device comprises a scraper (8) in sliding contact with the top surface of the workbench (3); and during the process in which the driving mechanism drives the workbench (3) to slide back and forth for sandblasting, the inclined track (4) drives the scraping device to slide back and forth in the direction of the inlet (301) to push the sand material through the inlet (301) and fall into the drying box (2); The scraping device further comprises a sliding member (7), the sliding member (7) passing through the workbench (3), the workbench (3) being provided with a guide hole (302) for the sliding member (7) to slide, the lower half of the sliding member (7) being located in the drying box (2) and not in contact with the bottom of the inner cavity of the drying box (2), so that the sliding member (7) is driven to flatten the sand material accumulated in the drying box (2) during the reciprocating sliding of the scraping device; The number of the inlet (301) and the scraping device are both two and they correspond one to one. A fixed platform (9) for placing the shell is fixed on the workbench (3). The fixed platform (9) is located between the two inlet (301). The two inlet (301) are located between the upper halves of the two sliding members (7). The upper halves of the sliding members (7) extend above the workbench (3) to block the ejected sand material, so that the sand material falls between the upper halves of the two sliding members (7). The sliding member (7) comprises an upper baffle (701), a penetration piece (702), a connecting plate (703), and a spreading plate (704) which are fixedly connected in sequence from top to bottom, the upper baffle (701) is located above the workbench (3), the penetration piece (702) slides through the workbench (3) through the guide hole (302), the spreading plate (704) is located in the drying box (2) for spreading the sand material, one end of the sliding plate (6) is fixedly connected to the connecting plate (703), and the other end is slidably engaged with the inclined track (4), and a socket (305) for slidingly inserting the sliding plate (6) is provided on the workbench (3); The scraper (8) is slidably arranged at the bottom of the upper baffle (701) through a plurality of vertical rods (16); the top ends of the plurality of vertical rods (16) are slidably inserted into the upper baffle (701), and the bottom ends are fixedly connected to the scraper (8); a plurality of compression springs (17) are connected between the scraper (8) and the upper baffle (701); based on the elastic force of the compression springs (17), the bottom of the scraper (8) is driven to elastically abut against the top of the workbench (3); When the scraping device slides toward the inlet (301) to a specific position, the scraper (8) blocks the inlet (301) to reduce the amount of heat lost when the drying box (2) dries the sand material.

2. The sandblasting equipment for a notebook computer housing according to claim 1, characterized in that: The top and bottom of the drying box (2) are both open, and a blocking plate (18) is detachably mounted on the bottom opening of the drying box (2). The blocking plate (18) is provided with a plurality of filter holes so that water falling into the drying box (2) passes through the filter holes and sand material falling into the drying box (2) remains in the drying box (2).

3. The sandblasting equipment for a notebook computer housing according to claim 1, characterized in that: The width of the guide hole (302) is less than 3 mm, and water vapor generated when the sand material is dried in the drying box (2) is discharged through the guide hole (302).

4. The sandblasting equipment for a notebook computer housing according to claim 1, characterized in that: An upwardly tilted arc plate (801) is integrally formed on a side of the scraper (8) away from the inlet (301); when the scraper (8) blocks the inlet (301), the outer side surface of the arc plate (801) abuts against the side edge of the inlet (301) so that the scraper (8) can slide out of the inlet (301) when the scraping device slides in a direction away from the inlet (301).

5. The sandblasting equipment for a notebook computer housing according to claim 2, characterized in that: A limit plate (19) is rotatably provided on both the left and right sides of the drying box (2), and the tops of the two limit plates (19) abut against the bottom of the blocking plate (18) so that the blocking plate (18) blocks the bottom opening of the drying box (2).

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