A deburring device for plastic parts

Abstract

This utility model discloses a deburring device for processing plastic parts, belonging to the field of plastic parts processing technology. It includes a workbench with a transparent protective box fixedly connected to its top. The transparent protective box contains a circumferential jet assembly that spatially encloses an internal processing area and has multiple nozzles that spray airflow towards this area. The deburring device clamps the plastic part using a clamping unit. A power unit, via a pusher plate, pushes the plastic part along a slide rail into the transparent protective box. When the plastic part passes through the center of the jet pipe, a dry ice deburring machine sprays dry ice particles through the nozzles, removing burrs from all directions. The pusher plate continues to push the workpiece to the other side of the slide rail and out of the transparent protective box. Simultaneously, a fan draws CO₂ gas from the box into an exhaust box, while the burrs are collected by a filter recovery box. The gas is discharged through an exhaust pipe, achieving cleaning and waste recovery, ensuring safe and efficient operation.

Description

Technical Field

[0001] This utility model specifically relates to a deburring device for processing plastic parts, belonging to the field of plastic parts processing technology. Background Technology

[0002] A dry ice deburring machine is a device that uses dry ice particles with temperatures as low as -76℃ to treat the surface of industrial semi-finished products. During operation, the equipment sprays dry ice particles at high speed onto the workpiece surface. Upon contact, the dry ice rapidly absorbs heat and sublimates, expanding its volume hundreds of times, generating a strong impact and peeling effect. This removes burrs from the part's surface, achieving a highly efficient and non-damaging deburring effect, leaving the workpiece surface smoother and cleaner.

[0003] However, in the existing technology, this equipment has many problems in actual operation. Operators need to wear gloves, manually hold the plastic parts and operate the spray gun at the same time, adjusting the workpiece angle while spraying dry ice. Because the hands are close to the spraying area, the extremely low temperature dry ice airflow and particles sprayed out will directly act on the operator's hands, causing a sudden drop in local temperature. Prolonged operation can easily cause numbness, frostbite and other discomfort in the hands, affecting the safety and comfort of operation.

[0004] In addition, during the spraying process, the burrs are impacted by the high-speed airflow and fly everywhere, scattering around the equipment or in the air. They are difficult to collect, which not only affects the cleanliness of the working environment, but also increases the difficulty of subsequent cleaning, and is not conducive to waste recycling and on-site management.

[0005] More seriously, in enclosed or poorly ventilated workshop environments, the continuous sublimation of large amounts of dry ice will produce high concentrations of carbon dioxide (CO2) gas. If there is a lack of effective ventilation or gas exhaust systems, CO2 will accumulate continuously in the space, leading to a significant increase in the concentration of carbon dioxide in the air. This may cause health problems such as dizziness, difficulty breathing, and chest tightness in operators, and may even pose a risk of suffocation, seriously threatening the health and safety of workers. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing a deburring device for processing plastic parts, thereby achieving the aforementioned objective.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a deburring device for processing plastic parts, comprising: A workbench, the top of which is fixedly connected to a transparent protective box, the interior of which is equipped with a circumferential air jet assembly; The circumferential jet assembly spatially encloses an internal processing area and is provided with multiple nozzles that jet airflow toward the internal processing area; A conveying assembly for conveying a plastic part along a preset path that passes through the internal processing area; The conveying assembly has a track interruption zone at the location of the internal processing area, and the span of the track interruption zone in the preset path direction is less than the length of the conveyed plastic part; Thus, when the plastic part is placed across the track interruption zone, it is held on the conveying assembly, while the part of the workpiece bottom facing the track interruption zone is sprayed by the circumferential jet assembly.

[0008] Furthermore, the circumferential jet assembly also includes a jet pipe, which is connected to the nozzle. The jet pipe is connected to a dry ice deburring machine via a pipe, and the dry ice deburring machine is fixedly installed on the workbench, so that the dry ice deburring machine provides dry ice gas to the jet pipe through the pipe.

[0009] Furthermore, the conveying assembly includes a slide rail and a pushing unit. A driving unit is connected to the side of the slide rail, and the driving unit is used to push the two slide rails to move relative to each other.

[0010] Furthermore, the pushing unit includes a power unit and a push plate. The top of the push plate is equipped with a clamping unit that presses against the surface of the plastic part, so that the power unit drives the push plate to move the plastic part.

[0011] Furthermore, the bottom of the transparent protective box is connected to an exhaust unit for venting exhaust gas outward via a pipe. The exhaust unit consists of an exhaust box, a fan, and an exhaust pipe. The exhaust box is connected to the transparent protective box via a pipe. The inside of the exhaust box is fixedly connected to the fan. The right side of the exhaust box is connected to the exhaust pipe.

[0012] Furthermore, the inner wall of the transparent protective box is provided with a burr recovery unit, which has at least one filter hole for filtering burrs, so that the dry ice gas ejected from the jet pipe passes through the filter hole and is sucked into the exhaust unit.

[0013] Beneficial effects: This invention uses a clamping unit to press a plastic part. The starting power unit pushes the plastic part along a slide rail into a transparent protective box via a pusher plate. When the plastic part passes through the center of the jet pipe, the dry ice deburring machine sprays dry ice particles through the nozzle to remove burrs from all directions. The pusher plate continues to push the workpiece to the other side of the slide rail and then out of the transparent protective box. Simultaneously, the exhaust unit draws CO2 gas from inside the box into an exhaust box, the burrs are collected by a filter and recovery box, and the gas is discharged through the exhaust pipe, achieving cleaning and waste recovery while ensuring safe and efficient operation. Attached Figure Description

[0014] Figure 1 This is a front structural diagram of the present invention; Figure 2 This is a cross-sectional view of the transparent protective box of this utility model; Figure 3 This is a cross-sectional view of the transparent protective box of this utility model; Figure 4 This is a cross-sectional view of the transparent protective box of this utility model.

[0015] In the diagram: 1. Workbench; 101. Dry ice deburring machine; 2. Transparent protective box; 3. Air jet pipe; 4. Nozzle; 5. Slide rail; 51. Roller; 6. Threaded plate; 7. Threaded rod; 8. Motor; 9. Baffle; 10. Filter recovery box; 11. Exhaust box; 12. Exhaust fan; 13. Exhaust pipe; 14. Support plate; 15. Electric telescopic rod; 16. Push plate; 17. Spring; 18. L-shaped pressure plate. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example 1 Please see Figure 1-4 As shown, a deburring device for processing plastic parts includes a worktable 1, a transparent protective box 2 fixedly connected to the top of the worktable 1, and a circumferential air jet assembly inside the transparent protective box 2. The circumferential jet assembly spatially encloses an internal processing area and is equipped with multiple nozzles 4 that jet air towards the internal processing area; A conveying assembly is used to convey a plastic part along a preset path that runs through the internal processing area. The conveying component has a track interruption zone in the internal processing area, and the span of the track interruption zone in the preset path direction is less than the length of the conveyed plastic part. The circumferential jet assembly also includes a jet pipe 3, which is connected to a nozzle 4. The nozzle 4 is arranged radially on the jet pipe 3. The jet pipe 3 is connected to a dry ice deburring machine 101 through a pipe. The dry ice deburring machine 101 is fixedly installed on the worktable 1, so that the dry ice deburring machine 101 provides dry ice gas to the jet pipe 3 through the pipe. See Figure 2-4As shown, the conveying assembly is equipped with slide rails 5 for placing plastic parts along a preset path. Each slide rail 5 has a roller 51 rotatably connected to its surface to reduce friction between the plastic parts and the slide rails 5 and to prevent the slide rails 5 from scratching the surface of the plastic parts. A groove is opened in the center of the slide rail 5, which is the interruption area of ​​the conveying assembly's track. The width of the groove is smaller than the length of the plastic workpiece to prevent the plastic workpiece from falling through the groove. A pushing unit is provided at the feed port of the slide rail 5 to push the plastic parts into the transparent protective box 2. The pushing unit includes a power unit and a push plate 16. The power unit includes an electric telescopic rod 15. A support plate 14 is fixedly installed on a support base. The interior of the support plate 14 is fixedly connected to the electric telescopic rod 15. A telescopic sleeve is installed on the telescopic end of the electric telescopic rod 15 so that the telescopic sleeve extends with the electric telescopic rod 15 to prevent the cleaned burrs from adhering to the telescopic end of the electric telescopic rod 15. The telescopic end of the electric telescopic rod 15 is fixedly connected to a push plate 16. A clamping unit for pressing the surface of the plastic part is installed on the top of the push plate 16. The clamping unit includes a spring 17 and an L-shaped pressure plate 18. The spring 17 is installed between the L-shaped pressure plate 18 and the push plate 16. The surface of the L-shaped pressure plate 18 is slidably connected to the push plate 16. See Figure 2-4 As shown, a drive unit is connected to the side of the slide rail 5. The drive unit includes a threaded plate 6, a threaded rod 7, a motor 8, and a baffle 9. One side of the threaded plate 6 is fixedly connected to the side of the slide rail 5. The surface of the threaded plate 6 is slidably connected to the transparent protective box 2. The interior of the transparent protective box 2 is provided with a sliding groove for the threaded plate 6 to slide. The front of the sliding groove is provided with a baffle 9 to prevent burrs from splashing onto the threaded rod 7. The end of the threaded plate 6 away from the slide rail 5 is helically connected to the threaded rod 7. The surface of the threaded rod 7 is rotatably connected to the transparent protective box 2. The end of the threaded rod 7 extending to the transparent protective box 2 is fixedly connected to the output shaft of the motor 8. The two sections of the threaded rod 7 have opposite threads, which causes the threaded rod 7 to drive the two opposing slide rails 5 to move relative to each other. See Figure 2-4 As shown, the inner wall of the transparent protective box 2 is provided with a burr recovery unit, which includes a filter recovery box 10. The bottom of the filter recovery box 10 has several equally spaced filter holes. The filter recovery box 10 is inserted into the transparent protective box 2. A handle is fixedly connected to one side of the filter recovery box 10 extending outside the transparent protective box 2. The bottom of the transparent protective box 2 is connected to an exhaust unit for exhausting air through a pipe. The exhaust unit includes an exhaust box 11, a fan 12, and an exhaust pipe 13. The exhaust box 11 is connected to the transparent protective box 2 through a pipe. The inside of the exhaust box 11 is fixedly connected to the fan 12. The right side of the exhaust box 11 is connected to the exhaust pipe 13. The other end of the exhaust pipe 13 is located outside the workshop or in a carbon dioxide recovery device.

[0018] Example 2 Please see Figures 3-4The basic structure inside the transparent protective box 2 in this embodiment is similar to that in embodiment 1. The conveying component is used to convey plastic parts along a preset path and is provided with slide rails 5 for placing plastic parts. Each slide rail 5 has a roller 51 rotatably connected to its surface to reduce the friction between the plastic parts and the slide rail 5 and to prevent the slide rail 5 from scratching the surface of the plastic parts. A groove is opened in the center of the slide rail 5. The groove is the track interruption area of ​​the conveying component, and the width of the groove is smaller than the length of the plastic workpiece to prevent the plastic workpiece from falling through the groove. The slide rails 5 at the front and rear of the groove are not on the same horizontal line. The rear slide rail 5 is lower than the front slide rail 5 to avoid the workpiece getting stuck in the groove.

[0019] The implementation principle of the deburring device for processing plastic parts according to an embodiment of this application is as follows: During operation, the L-shaped pressure plate 18 is first pulled upward to stretch the spring 17, and then the plastic part is placed on the slide rail 5. After the L-shaped pressure plate is released, under the action of the spring 17, the L-shaped pressure plate is pressed downward to firmly fix the surface of the plastic part.

[0020] Next, the electric telescopic rod 15 is activated, pushing the push plate 16 forward and causing the plastic part to slide smoothly into the transparent protective box 2 along the slide rail 5. When the plastic part passes through the center of the jet pipe 3, it is suspended in mid-air, ensuring that there are no obstructions on all sides. At this time, the dry ice deburring machine 101 is activated, and dry ice particles are transported to the jet pipe 3 through the pipeline and sprayed at high speed from its annularly distributed nozzles 4, impacting the surface of the plastic part from all directions. Utilizing the low-temperature embrittlement and instantaneous vaporization expansion effect of dry ice, burrs on all surfaces are efficiently removed.

[0021] After cleaning, the plastic part continues to be pushed by the push plate 16, passing through the air jet area and entering above the slide rail 5 on the other side. The electric telescopic rod 15 continues to extend, pushing the processed plastic part out of the transparent protective box 2.

[0022] During the deburring process, the exhaust fan 12 is turned on simultaneously, drawing the burr debris and sublimated dry ice CO2 gas raised in the transparent protective box 2 into the exhaust box 11 through the pipeline. Solid impurities such as burrs are intercepted and collected by the filter recovery box 10 below for centralized treatment; the gas is discharged outside the workshop through the exhaust pipe 13 to prevent CO2 accumulation and ensure a safe and clean working environment.

[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0024] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A deburring device for processing plastic parts, characterized in that, include: A workbench (1) is fixedly connected to a transparent protective box (2) on its top, and the transparent protective box (2) is equipped with a circumferential jet assembly inside. The circumferential jet assembly spatially encloses an internal processing area and is provided with multiple nozzles (4) that jet airflow toward the internal processing area. A conveying assembly for conveying plastic parts along a preset path that passes through the internal processing area; The conveying assembly has a track interruption zone at the location of the internal processing area, and the span of the track interruption zone in the preset path direction is less than the length of the conveyed plastic part; Thus, when the plastic part is placed across the track interruption zone, it is held on the conveying assembly, while the part of the workpiece bottom facing the track interruption zone is sprayed by the circumferential jet assembly.

2. The deburring device for processing plastic parts as described in claim 1, characterized in that: The circumferential jet assembly also includes a jet pipe (3), which is connected to a nozzle (4). The jet pipe (3) is connected to a dry ice deburring machine (101) through a pipe, and the dry ice deburring machine (101) is fixedly installed on the workbench (1), so that the dry ice deburring machine (101) provides dry ice gas to the jet pipe (3) through a pipe.

3. The deburring device for processing plastic parts as described in claim 1, characterized in that: The conveying assembly includes a slide rail (5) and a pushing unit. The slide rail (5) is connected to a driving unit on its side. The driving unit is used to push the two slide rails (5) to move relative to each other.

4. The deburring device for processing plastic parts as described in claim 3, characterized in that: The pushing unit includes a power unit and a push plate (16). The top of the push plate (16) is equipped with a clamping unit that presses against the surface of the plastic part, so that the power unit drives the push plate (16) to push the plastic part to move.

5. The deburring device for processing plastic parts as described in claim 1, characterized in that: The bottom of the transparent protective box (2) is connected to an exhaust unit for venting exhaust to the outside via a pipe. The exhaust unit consists of an exhaust box (11), a blower (12), and an exhaust pipe (13). The exhaust box (11) is connected to the transparent protective box (2) via a pipe. The inside of the exhaust box (11) is fixedly connected to the blower (12). The right side of the exhaust box (11) is connected to the exhaust pipe (13).

6. The deburring device for processing plastic parts as described in claim 1, characterized in that: The inner wall of the transparent protective box (2) is provided with a burr recovery unit. The burr recovery unit has at least one filter hole for filtering burrs, so that the dry ice gas sprayed out by the jet pipe (3) is drawn into the exhaust unit through the filter hole.

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