Deburring device for injection molded part

Abstract

The utility model discloses a deburring device for injection molded parts, which comprises a device base, a limiting ball arranged above the device base, an adjusting mechanism arranged between the device base and the limiting ball, and a spray gun mechanism arranged above the limiting ball. According to the utility model, the limiting ball is rotated to turn over the injection molding part so as to realize all-directional deburring, clamping is not needed in the turning process, the situation that the adaptive range of a clamping device is small is avoided, air flow and burrs in the deburring process can be discharged out of the limiting ball in time through the vent holes, the situation that burr wastes are accumulated in the limiting ball is avoided, and the deburring efficiency is improved. Dry ice particles are sprayed to the surface of a workpiece through the spray gun, burrs are removed through sublimation expansion force and impact force of dry ice, the surface of the workpiece cannot be scratched or damaged when the burrs are removed through the dry ice, the dry ice becomes gas after sublimation, no pollutant is left, and the device is suitable for deburring of workpieces of various materials and shapes. And the spraying direction of the high-pressure gas can be continuously changed by rotating the nozzle.

Description

Technical Field

[0001] This utility model relates to the field of deburring technology for injection molded parts, and in particular to a deburring device for injection molded parts. Background Technology

[0002] Burrs are a common defect in the processing of injection molded parts and other mechanical parts. Their presence not only affects the appearance quality of the product, but may also have an adverse effect on the product's performance and service life. For example, in hydraulic systems, burrs may cause valve jamming, circuit or filter blockage, and other malfunctions; in electrical systems, burrs may cause short circuits or magnetic field damage.

[0003] In the early days of injection molding production, burr removal mainly relied on manual operation. This method was not only inefficient but also difficult to guarantee thorough removal and a smooth workpiece surface. With the acceleration of industrialization and the development of automation technology, people began to explore more efficient and precise deburring methods, such as electrochemical deburring and laser deburring. Among these, dry ice deburring machines, as an innovative deburring device, have been widely used in the field of injection molding deburring due to their advantages of high efficiency, environmental friendliness, and non-destructive processing.

[0004] Existing deburring devices for injection molded parts require clamping and flipping the injection molded parts during the deburring process. The clamped part cannot be fully deburred, and the number of injection molded parts that the clamping device can be adapted to is limited.

[0005] A deburring device for injection molded parts, disclosed in Chinese patent document CN202123114708.4, includes a worktable with a base box fixedly connected to its bottom. A sliding groove is formed on the inner side wall of the base box, and an electric push rod is fixedly connected to the inner side wall. A hinge seat is movably connected to the output end of the electric push rod. A first push rod and a second push rod are movably connected to the electric push rod via the hinge seat. One end of the first push rod is movably connected to a receiving plate via the hinge seat. This deburring device for injection molded parts facilitates closer collection of waste material, preventing waste from falling into the base box. It eliminates the need for cleaning and processing waste material after grinding, as waste collection can be completed during the deburring process, saving significant time and effort, greatly improving work efficiency, and enabling faster deburring. It provides convenience for deburring work, as manual assistance affects deburring efficiency.

[0006] To address the shortcomings of the existing technology, providing a deburring device for injection molded parts is a problem worthy of research. Utility Model Content

[0007] The purpose of this invention is to overcome the shortcomings of existing deburring devices for injection molded parts, which require clamping and flipping the injection molded parts during the deburring process, resulting in insufficient deburring of the clamped parts and a limited number of injection molded parts that the clamping parts can be adapted to. This invention provides a deburring device for injection molded parts that achieves the technical effect of automatic flipping without clamping.

[0008] The objective of this utility model is achieved through the following technical solution:

[0009] A deburring device for injection molded parts includes a device base, a limiting ball disposed above the device base, an adjustment mechanism disposed between the device base and the limiting ball, and a spray gun mechanism disposed above the limiting ball.

[0010] The limiting ball is composed of two hemispheres, the diameter of which is larger than the width of the injection molded part being processed. There is a gap between the two hemispheres of the limiting ball, and several vent holes are provided on the limiting ball. The vent holes allow the airflow and burrs during the deburring process to be discharged from the limiting ball in a timely manner, avoiding the accumulation of burr waste inside the limiting ball.

[0011] The adjustment mechanism includes support plates fixedly connected to both sides of the device base, electric push rods fixedly connected to the inner side of the support plates, and servo motors fixedly connected to the output end of the electric push rods.

[0012] The output end of the servo motor is fixedly connected to the outer center of the limiting ball. When the electric push rods on both sides extend, the distance between the limiting balls on both sides is less than the minimum width of the injection molded part being processed. The gap between the limiting balls is limited according to the specifications of the injection molded part being processed to prevent the injection molded part being processed from falling out of the gap between the limiting balls during the flipping process.

[0013] The spray gun mechanism includes a high-pressure jet device fixedly connected to the support base, and a nozzle rotatably connected to the outlet of the high-pressure jet device; the high-pressure jet device is equipped with a dry ice crushing device inside, which turns dry ice into gas after sublimation, leaving no pollutants, and is suitable for deburring workpieces of various materials and shapes.

[0014] The main body of the nozzle is inclined. The width of the nozzle at the same height as the top of the limiting ball is less than the distance between the two parts of the limiting ball. The position at the same height as the top of the nozzle and the limiting ball is located on the axis of the nozzle rotation shaft, which limits the position of the nozzle at the same height as the top of the limiting ball so that the nozzle can remain stationary during rotation.

[0015] A first gear is fixedly connected to the top outer side of the nozzle, a small motor is fixedly connected to the outlet side of the high-pressure jet device, and a second gear is fixedly connected to the output end of the small motor. The first gear and the second gear mesh with each other.

[0016] The top of the device base is provided with a waste trough, which is arc-shaped and located below the combined limiting ball.

[0017] Positive and beneficial effects:

[0018] 1. The deburring device for this injection molded part achieves all-round deburring by rotating the limiting ball to flip the injection molded part. No clamping is required during the flipping process, avoiding the problem of limited applicability of clamping devices. Ventilation holes are provided to allow airflow and burrs to be discharged from the limiting ball in a timely manner during the deburring process, preventing the accumulation of burr waste in the limiting ball.

[0019] 2. This injection molded part uses a deburring device that sprays dry ice particles onto the workpiece surface through a spray gun. The burrs are removed by utilizing the sublimation expansion force and impact force of the dry ice. Dry ice deburring will not cause scratches or damage to the workpiece surface. After the dry ice sublimates into gas, it will not leave any pollutants. It is suitable for deburring workpieces of various materials and shapes.

[0020] 3. The deburring device used for this injection molded part can continuously change the direction of the high-pressure gas by rotating the nozzle, thereby performing multi-directional dry ice deburring treatment on the injection molded part inside the limiting ball. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the central cross-sectional structure of this utility model;

[0023] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0024] Figure 4 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0025] Figure 5 This utility model Figure 4 Enlarged structural diagram at point B;

[0026] Figure 6 This utility model Figure 4 A magnified structural diagram at point C.

[0027] In the diagram: 1-device base, 2-limiting ball, 3-vent hole, 4-support plate, 5-electric push rod, 6-servo motor, 7-high-pressure jet device, 8-nozzle, 9-first gear, 10-small motor, 11-second gear, 12-waste trough. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0029] Example 1

[0030] like Figures 1 to 6 As shown, a deburring device for injection molded parts includes a device base 1, a limiting ball 2 disposed above the device base 1, an adjustment mechanism disposed between the device base 1 and the limiting ball 2, and a spray gun mechanism disposed above the limiting ball 2.

[0031] like Figure 1 As shown, the limiting ball 2 consists of two hemispheres. The diameter of the limiting ball 2 is larger than the width of the injection molded part being processed. There is a gap between the two hemispheres of the limiting ball 2. Several vent holes 3 are provided on the limiting ball 2. By setting two limiting balls 2 that are not completely merged, the injection molded part that needs to be deburred is placed inside the limiting ball 2, with a gap reserved between them, so that the deburring spray gun can extend into the limiting ball 2 through the gap to deburr the injection molded part inside. During the deburring process, this device can rotate the limiting ball 2 to flip the injection molded part to achieve all-round deburring. During the flipping process, there is no need to clamp, avoiding the situation where the clamping device has a small range of applicability. The vent holes 3 are provided so that the airflow and burrs during the deburring process can be discharged from the limiting ball 2 in time, avoiding the accumulation of burr waste inside the limiting ball 2.

[0032] like Figures 4 to 6 As shown, the adjustment mechanism includes support plates 4 fixedly connected to both sides of the device base 1, electric push rods 5 fixedly connected to the inner side of the support plates 4, and servo motors 6 fixedly connected to the output end of the electric push rods 5.

[0033] The output end of the servo motor 6 is fixedly connected to the outer center of the limiting ball 2. When the electric push rods 5 on both sides extend, the distance between the two limiting balls 2 is less than the minimum width of the injection molded part to be processed. By setting the electric push rods 5 and the servo motor 6 on the outer side of the two limiting balls 2, the electric push rods 5 control the movement and opening and closing of the two limiting balls 2. When the injection molded part to be processed needs to be placed inside the limiting ball 2 or taken out from the limiting ball 2, the electric push rods 5 on both sides retract, and the two limiting balls 2 open, making it convenient to take out or place the injection molded part. After the operation is completed, the electric push rods 5 are extended to make the limiting balls 2 close, which facilitates the deburring of the injection molded part inside the limiting ball 2. During the deburring process, the servo motor 6 drives the two limiting balls 2 to rotate, causing the injection molded part inside the limiting ball 2 to continuously rotate, which facilitates the spray gun mechanism to perform all-round deburring of the injection molded part.

[0034] Furthermore, the gap between the limiting balls 2 is limited according to the specifications of the injection molded part to prevent the injection molded part from falling out of the gap between the limiting balls 2 during the flipping process.

[0035] Example 2

[0036] like Figures 2 to 5 As shown, the spray gun mechanism includes a high-pressure jet device 7 fixedly connected to the support base 1, and a nozzle 8 rotatably connected to the air outlet of the high-pressure jet device 7.

[0037] The high-pressure jet device 7 is equipped with a dry ice crushing device. By installing the dry ice crushing device inside the high-pressure jet device 7, the high-pressure gas ejected by the device contains dry ice particles. Taking advantage of the property that dry ice (solid carbon dioxide) sublimates rapidly at room temperature, the dry ice particles are sprayed onto the surface of the workpiece through the spray gun. The sublimation expansion force and impact force of the dry ice are used to remove burrs. Dry ice deburring will not cause scratches or damage to the surface of the workpiece. After the dry ice sublimates into gas, it will not leave any pollutants. It is suitable for deburring workpieces of various materials and shapes.

[0038] like Figures 1 to 5 As shown, the main body of the nozzle 8 is tilted. The width of the nozzle 8 at the same height as the top of the limiting ball 2 is less than the distance between the two parts of the limiting ball 2. The position at the same height as the top of the nozzle 8 and the limiting ball 2 is located on the axis of the nozzle 8's rotation. By setting the nozzle 8 to a tilted state and enabling it to rotate, the end of the nozzle 8 can be inserted into the limiting ball 2. Rotating the nozzle 8 can continuously change the direction of the high-pressure gas injection, thereby performing multi-directional dry ice deburring treatment on the injection molded part inside the limiting ball 2. Compared with the single-point spraying method, this device can achieve a larger and more comprehensive deburring coverage. Furthermore, by limiting the position of the nozzle 8 at the same height as the top of the limiting ball 2, this position can remain stationary during the rotation of the nozzle 8, preventing the nozzle 8 from colliding with the edge of the limiting ball 2 during the rotation.

[0039] Furthermore, a protective sleeve is provided on the outside of the nozzle 8 at the same height as the top of the nozzle 8 and the limiting ball 2 to prevent the nozzle 8 from contacting the limiting ball 2 during rotation and causing wear.

[0040] Example 3

[0041] like Figures 2 to 5As shown, a first gear 9 is fixedly connected to the top outer side of the nozzle 8, and a small motor 10 is fixedly connected to one side of the air outlet of the high-pressure jet device 7. A second gear 11 is fixedly connected to the output end of the small motor 10. The first gear 9 and the second gear 11 mesh with each other. By setting a small motor 10 with a second gear 11 on one side of the nozzle 8, the nozzle 8 is driven to rotate by the meshing relationship between the first gear 9 and the second gear 11, so that the nozzle 8 can rotate continuously to adjust the spray direction and spray the injection molded part in all directions.

[0042] like Figure 1 As shown, the top of the device base 1 is provided with a waste trough 12, which is arc-shaped and located below the combined limiting ball 2. By setting the waste trough 12 on the top of the device base 1, the burr waste generated by dry ice deburring is collected, which is convenient for subsequent recycling and cleaning.

[0043] The working principle of this utility model is as follows:

[0044] S1. The injection molded part that needs to be deburred is placed in the limiting ball 2, and a gap is reserved between the two so that the deburring spray gun can be inserted into the limiting ball 2 through the gap to deburr the injection molded part inside. During the deburring process, the injection molded part can be flipped by rotating the limiting ball 2 to achieve all-round deburring. During the flipping process, there is no need to clamp, avoiding the situation that the clamping device has a small range of applicability.

[0045] S2. The electric push rod 5 controls the movement and opening and closing of the two limiting balls 2. When the injection molded part to be processed needs to be placed inside the limiting ball 2 or taken out from the limiting ball 2, the electric push rods 5 on both sides retract, and the two limiting balls 2 open to facilitate the removal or placement of the injection molded part. After the operation is completed, the electric push rod 5 is extended to make the limiting balls 2 close together, which facilitates the deburring of the injection molded part inside the limiting ball 2.

[0046] S3. A dry ice crushing device is installed inside the high-pressure jet device 7 so that the high-pressure gas ejected by the device contains dry ice particles. Taking advantage of the characteristic that dry ice (solid carbon dioxide) sublimates rapidly at room temperature, the dry ice particles are sprayed onto the surface of the workpiece through a spray gun, and the burrs are removed by the sublimation expansion force and impact force of the dry ice.

[0047] S4. If the nozzle 8 is set to an inclined state and can be rotated, then after the end of the nozzle 8 is inserted into the limiting ball 2, rotating the nozzle 8 can continuously change the direction of the high-pressure gas injection, thereby performing multi-directional dry ice deburring treatment on the injection molded part inside the limiting ball 2.

[0048] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A deburring device for injection molded parts, comprising a device base (1), characterized in that: It also includes a limiting ball (2) disposed above the device base (1), an adjustment mechanism disposed between the device base (1) and the limiting ball (2), and a spray gun mechanism disposed above the limiting ball (2).

2. The deburring device for injection molded parts according to claim 1, characterized in that: The limiting ball (2) is composed of two hemispheres. The diameter of the limiting ball (2) is greater than the width of the injection molded part being processed. There is a gap between the two hemispheres of the limiting ball (2). Several vent holes (3) are provided on the limiting ball (2).

3. The deburring device for injection molded parts according to claim 1, characterized in that: The adjustment mechanism includes a support plate (4) fixedly connected to both sides of the device base (1), an electric push rod (5) fixedly connected to the inner side of the support plate (4), and a servo motor (6) fixedly connected to the output end of the electric push rod (5). The output end of the servo motor (6) is fixedly connected to the outer center of the limiting ball (2). When the electric push rods (5) on both sides extend, the distance between the limiting balls (2) on both sides is less than the minimum width of the injection molded part being processed.

4. The deburring device for injection molded parts according to claim 1, characterized in that: The spray gun mechanism includes a high-pressure jet device (7) fixedly connected to the upper part of the device base (1), and a nozzle (8) rotatably connected to the air outlet of the high-pressure jet device (7). The high-pressure jet device (7) is equipped with a dry ice crushing device inside.

5. A deburring device for injection molded parts according to claim 4, characterized in that: The main body of the nozzle (8) is tilted. The width of the nozzle (8) and the top of the limiting ball (2) at the same height is less than the distance between the two parts of the limiting ball (2). The top of the nozzle (8) and the top of the limiting ball (2) at the same height are located on the axis of the nozzle (8) rotation shaft.

6. The deburring device for injection molded parts according to claim 4, characterized in that: A first gear (9) is fixedly connected to the top outer side of the nozzle (8), a small motor (10) is fixedly connected to the outlet side of the high-pressure jet device (7), and a second gear (11) is fixedly connected to the output end of the small motor (10). The first gear (9) and the second gear (11) mesh with each other.

7. The deburring device for injection molded parts according to claim 1, characterized in that: The top of the device base (1) is opened at the waste trough (12), which is arc-shaped and located below the combined limiting ball (2).

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