Material receiving and deburring device for injection molded parts
By integrating clamping, displacement, and burr removal functions, the deburring device for injection molded parts solves the problems of material unloading damage and incomplete burr removal of BMC injection molded parts, and realizes efficient and stable fully automated production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAMEN JINYUE ELECTRIC CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-05-12
Smart Images
Figure CN224223973U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of automated equipment for injection molding, and specifically relates to a device for receiving and deburring injection molded parts. Background Technology
[0002] In the production process of BMC (Bulk Molding Compound) injection molded parts, after the injection molded parts are removed from the mold, they need to undergo material receiving and burr removal to ensure product dimensional accuracy and surface quality. However, existing technologies have the following significant problems in this step:
[0003] 1. Damage to injection molded parts due to improper unloading height: Traditional robotic arms typically unload injection molded parts directly onto the conveyor belt at a relatively high position after removing them from the mold cavity. If the unloading height is too high, the injection molded parts are prone to collisions with the conveyor belt or other components due to free fall, resulting in damage. If the unloading height is too low, insufficient distance between the robotic arm and the conveyor belt may crush the injection molded parts. This contradiction leads to a decrease in the yield rate of injection molded parts and requires frequent adjustments to equipment parameters, reducing production efficiency.
[0004] 2. Lack of Automated Handling of Blender Surfaces: Blender surfaces on BMC injection molded parts are prone to blender surface defects during the molding process. Current technology does not integrate blender removal functionality after the robotic arm removes the injection molded part, requiring subsequent sandblasting to remove the blenders. However, untreated blenders may detach during sandblasting, clogging the sand particle recovery pipes of the sandblasting machine. This problem forces the production line to allocate additional manual positions for blender cleaning, increasing labor costs and causing production losses due to downtime for cleaning blockages.
[0005] Although some solutions attempt to alleviate the above problems by optimizing the robot arm path or adding a separate deburring station, the following limitations still exist: the independent deburring equipment requires secondary positioning of the injection molded part, which increases the cycle time and makes it difficult to meet the needs of efficient continuous production; the robot arm unloading height adjustment relies on a complex sensor feedback system, which is costly and lacks stability; and the lack of integrated design results in a large equipment footprint and poor coordination. Utility Model Content
[0006] In view of the above-mentioned technical problems existing in the prior art, this utility model proposes a deburring device for injection molded parts to solve the above-mentioned technical problems.
[0007] This invention proposes a deburring device for injection molded parts, including an injection molded part clamping mechanism, a displacement mechanism, and a deburring mechanism. The displacement mechanism is connected to the injection molded part clamping mechanism to drive the clamping mechanism to switch between an initial receiving position and an unloading position. The initial receiving position is higher than the unloading position. The deburring mechanism includes a liftable cutting component located below the injection molded part clamping mechanism. This solution uses the displacement mechanism to switch the clamping mechanism between the receiving position (high) and the unloading position (low), reducing the free fall height of the injection molded part during unloading and minimizing the risk of collision and crushing. The liftable deburring mechanism, integrated below the clamping mechanism, directly and automatically processes the deburred parts of the injection molded part, avoiding secondary positioning and improving efficiency.
[0008] In a specific embodiment, the displacement mechanism is a flipping mechanism, and the injection molded part clamping mechanism is mounted on the flipping shaft of the flipping mechanism. The flipping action can precisely and stably control the switching of the injection molded part between the receiving position (high) and the unloading position (low).
[0009] In a specific embodiment, the burr removal mechanism includes an upper cutting blade assembly and a lower cutting blade assembly. The upper cutting blade assembly is mounted on a flipping shaft, and the lower cutting blade assembly is vertically and flexibly positioned below the flipping mechanism. By separating the upper and lower cutting blade assemblies, a collaborative shearing structure is formed, and the precise removal of burrs can be achieved by utilizing the relative movement of the upper and lower cutting blades.
[0010] In a specific embodiment, the receiving position is where the injection molded part clamping mechanism is located directly above the flipping mechanism; the unloading position is where the injection molded part clamping mechanism is located directly below the flipping mechanism. This optimization of the injection molded part transfer process through a short flipping path shortens cycle time and avoids displacement of the injection molded part due to long-distance movement.
[0011] In a specific embodiment, the upper cutter assembly includes a fixed support, a buffer spring, and an upper cutter. The fixed support is mounted on the flipping shaft, and the buffer spring is positioned between the upper cutter and the fixed support. This arrangement adjusts the contact pressure during the shearing process, preventing overload damage caused by dimensional errors in the injection molded part or uneven burr thickness, and improving the fault tolerance of the cutting process.
[0012] In a specific embodiment, the lower cutter assembly has a discharge channel in the middle for the injection molded part to pass through. This discharge channel allows the cut-off injection molded part to fall directly onto the conveyor belt through the channel.
[0013] In a specific embodiment, the lower cutter assembly includes a lower cutter and a linear bearing, with the linear bearing mounted on the side of the lower cutter. The linear bearing guides the lower cutter to move vertically, ensuring the straightness and stability of the cutting trajectory.
[0014] In a specific embodiment, the cutting surfaces of the upper and lower cutters work in a matching manner. The matching of the upper and lower cutter cutting surfaces forms a closed shearing area, which ensures the deburring effect.
[0015] In a specific embodiment, the injection molded part clamping mechanism is a pneumatic gripper structure. The clamping force of the pneumatic gripper structure is controllable and the response speed is fast, adapting to the rapid clamping and release of BMC injection molded parts of different sizes, thus improving the versatility of the equipment.
[0016] In a specific embodiment, an air-blowing structure is also included, which is directed towards the burr removal mechanism. The air-blowing structure directionally removes residual burrs from the removal mechanism, preventing debris accumulation from affecting subsequent processing, while also reducing the frequency of manual cleaning and improving the stability of continuous production.
[0017] This utility model discloses a deburring device for injection molded parts, which integrates clamping, displacement, and deburring functions, systematically solving two core problems in the production of BMC injection molded parts:
[0018] 1. Discharge height conflict: By setting the discharge position higher than the receiving position through the displacement mechanism, the free fall height of the injection molded part is reduced. Combined with short path displacement (such as flipping), collisions and crushing damage are avoided, significantly improving the yield of injection molded parts.
[0019] 2. Automated burr removal: The liftable cutting component directly removes burrs online at the unloading position without secondary positioning or manual intervention, avoiding equipment failure caused by burrs falling off in subsequent processes and reducing labor costs.
[0020] The overall solution achieves full-process automation through modular design (clamping, displacement, cutting, and cleaning), adapts to multiple injection molded parts, balances efficiency and stability, and is suitable for industrial mass production scenarios. Attached Figure Description
[0021] The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments and, together with the description, serve to explain the principles of the present invention. Other embodiments and many anticipated advantages of the embodiments will be readily recognized as they become better understood through reference to the following detailed description. Elements in the drawings are not necessarily to scale. The same reference numerals refer to corresponding similar parts.
[0022] Figure 1 This diagram shows a schematic representation of the receiving and deburring device for an injection molded part in the receiving position according to an embodiment of the present invention.
[0023] Figure 2 A schematic diagram of the material receiving and deburring device for an injection molded part according to an embodiment of the present invention is shown in the unloading position.
[0024] The meanings of the numbers in the diagram are as follows: 1. Base; 2. Injection molded part; 3. Tilting mechanism; 31. Tilting shaft; 32. Bearing; 4. Injection molded part clamping mechanism; 5. Deburring mechanism; 51. Upper cutter assembly; 511. Fixed support; 512. Upper cutter; 513. Buffer spring; 52. Lower cutter assembly; 521. Lower cutter; 522. Linear bearing. Detailed Implementation
[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.
[0026] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.
[0027] The specific embodiments of this utility model have been described above, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.
[0028] Figure 1 This diagram illustrates the structure of a deburring device for injection molded parts in the receiving position according to an embodiment of the present invention. Figure 1 As shown, the deburring device for injection molded parts includes a base 1, a flipping mechanism 3, an injection molded part clamping mechanism 4, and a deburring mechanism 5. The base 1 is fixed to the side of the production line conveyor belt, serving as a support platform for the entire mechanism. The base 1 integrates the flipping mechanism 3, the injection molded part clamping mechanism 4, and the deburring mechanism 5, ensuring coordinated operation of all components. The flipping mechanism 3 is mounted on the base 1 via a flipping shaft 31 and bearings 32, allowing it to rotate 180° around the flipping shaft 31. Both ends of the flipping shaft 31 are connected to the base 1 via bearings 32, ensuring smooth rotation. The injection molded part clamping mechanism 4 is fixed to the flipping shaft 31. In one specific embodiment, a pneumatic gripper structure can be used to clamp the injection molded part 2 removed from the mold. The burr removal mechanism 5 includes an upper cutter assembly 51 and a lower cutter assembly 52, which are respectively positioned below the flipping shaft 31 and the base 1, forming a collaborative shearing structure. Utilizing the height difference between the plane containing the burrs on the injection molded part, it clamps and displaces the outer burrs along the outer contour of the injection molded part to separate the injection molded part from the burrs. Figure 1In the receiving state, after the injection molded part 2 is taken out of the mold cavity by the automatic ejector, it is moved to directly above the flipping mechanism 3 (receiving position). At this time, the injection molded part clamping mechanism 4 is located above the flipping shaft 31, and the pneumatic grippers open to receive the part. After the injection molded part 2 is placed in the clamping area of the injection molded part clamping mechanism 4, the pneumatic grippers close, firmly clamping the injection molded part 2.
[0029] In a specific embodiment, the upper cutter assembly 51 is mounted on the flip shaft 31 and moves synchronously with the flip shaft. It includes a fixed support 511, an upper cutter 512, and a buffer spring 513. The fixed support 511 is rigidly connected to the flip shaft 31 and serves as the supporting base for the upper cutter assembly. The blade of the upper cutter 512 faces downward and is connected to the fixed support 511 through the buffer spring 513. The buffer spring 513 is compressed / extended in the vertical direction to adjust the contact pressure of the upper cutter 512.
[0030] In a specific embodiment, the lower cutter assembly 52 is located directly below the flipping mechanism 3 and includes a lower cutter 521 and a linear bearing 522. The lower cutter 521 has an upward-facing blade and a through-feed channel in the middle for the injection molded part 2 to fall vertically after the burrs are removed. The linear bearing 522 is symmetrically installed on both sides of the lower cutter 521 and cooperates with the guide rod on the base 1 to guide the lower cutter 521 to move up and down precisely in the vertical direction.
[0031] In a specific embodiment, the cutting surfaces of the upper cutter 512 and the lower cutter 521 are designed to work in a complementary manner. For example, the cutting edge of the upper cutter 512 can be a convex structure, and the cutting edge of the lower cutter 521 can be a corresponding concave structure, with the two precisely matched. When the upper and lower cutters are closed, the convex and concave cutting edges form a tightly fitted annular shearing area, which can achieve gapless shearing along the outer contour of the injection molded part 2, ensuring that the burrs are effectively cut off and effectively avoiding problems such as burr residue or uneven cuts.
[0032] The following combination Figure 2 A detailed explanation of the overall structure and principles is provided below:
[0033] Figure 2 This diagram shows a schematic representation of the deburring device for an injection molded part in the unloading position according to an embodiment of the present invention. Figure 2 As shown, the drive device (e.g., a servo motor) of the flipping mechanism 3 is activated, causing the flipping shaft 31 to rotate 180°, so that the injection molding part clamping mechanism 4 moves from the receiving position directly above (e.g., Figure 1 Move to the unloading position directly below (e.g.) Figure 2 This system uses a 180° rotation to switch between the receiving position (high position) and the unloading position (low position), reducing the unloading height and significantly decreasing the risk of collisions with the injection molded parts. The burr removal operation at the unloading position is as follows:
[0034] The lower cutter assembly 52 rises vertically via a linear bearing 522 until the cutting surfaces of the lower cutter 521 and the upper cutter 512 close. The buffer spring 513 of the upper cutter assembly 51 provides elastic compensation during the shearing process, preventing damage to the injection molded part. The burrs on the injection molded part 2 are clamped between the upper cutter 512 and the lower cutter 521, and shearing is completed through relative displacement. After the burrs are removed, the pneumatic grippers of the injection molded part clamping mechanism 4 release, and the injection molded part 2 falls onto the conveyor belt through the material discharge channel in the middle of the lower cutter assembly 52, completing the burr removal and material discharge operation. The flipping mechanism 3 then resets to the receiving position, ready for the next cycle.
[0035] In a specific embodiment, the base 1 is also provided with an air blowing structure (not shown in the figure), which faces the burr removal mechanism and removes residual burr debris on the lower cutter 521 and the upper cutter 512 by high-pressure airflow.
[0036] In some other examples, the flipping mechanism 3 can adopt a linear displacement method such as a combination of linear guide rail and cylinder, or other displacement mechanisms. As long as the switching between the receiving position (low position) and the unloading position (high position) can be realized, the above-mentioned technical effects of this utility model can also be achieved.
[0037] Although Figure 1 and Figure 2 The clamping mechanism shown is a pair, capable of simultaneously handling the deburring operation of two injection molded parts 2. However, it should be recognized that in practical applications, the number of clamping mechanisms can be flexibly expanded. Multiple sets of clamping mechanisms can be added based on the number of cavities in the injection mold and production cycle requirements, by uniformly distributing them along the flipping axis or arranging them in a matrix. For example, in large injection molding equipment, four, six, or even more clamping units can be set up, forming a ring or linear array, allowing multiple injection molded parts to be processed simultaneously in a single flip, significantly improving single-machine capacity and adapting to high-speed batch production scenarios in automated production lines.
[0038] This utility model provides an injection molding part receiving and deburring device. Utilizing a flipping mechanism and other displacement mechanisms, it changes the unloading position to below the receiving position, achieving high-low switching through a short-path flipping. This precisely controls the unloading height of the injection molding part, effectively avoiding collision damage and crushing caused by free fall or insufficient spacing, significantly improving the yield of injection molding parts. The deburring mechanism, composed of liftable upper and lower cutting blade assemblies, directly cuts the deburr online at the unloading position without secondary positioning or manual intervention, eliminating subsequent equipment failures caused by deburr residue and significantly reducing labor costs. The overall solution adopts a modular design, organically integrating clamping, displacement, cutting, and cleaning functions to achieve full automation from receiving and deburring to unloading. It not only adapts to the efficient processing of multiple injection molding part models but also meets the high-speed, high-precision requirements of industrial mass production with stable and reliable operation and a compact, collaborative structural design.
[0039] In the description of this utility model, it should be understood that the terms "upper," "lower," "inner," "outer," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The simple fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used for improvement. Any reference signs in the claims should not be construed as limiting the scope.
Claims
1. A deburring device for injection molded parts, characterized in that, The device includes an injection molded part clamping mechanism, a displacement mechanism, and a burr removal mechanism. The displacement mechanism is connected to the injection molded part clamping mechanism to drive the injection molded part clamping mechanism to switch between an initial receiving position and an unloading position. The initial receiving position is higher than the unloading position. The burr removal mechanism includes a liftable cutting component disposed below the injection molded part clamping mechanism.
2. The deburring device for injection molded parts according to claim 1, characterized in that, The displacement mechanism is a flipping mechanism, and the injection molding part clamping mechanism is disposed on the flipping shaft of the flipping mechanism.
3. The deburring device for injection molded parts according to claim 2, characterized in that, The rough edge removal mechanism includes an upper cutting blade assembly and a lower cutting blade assembly. The upper cutting blade assembly is disposed on the flipping shaft, and the lower cutting blade assembly is vertically and flexibly disposed below the flipping mechanism.
4. The deburring device for injection molded parts according to claim 3, characterized in that, The receiving position is where the injection molding part clamping mechanism is located directly above the flipping mechanism; the unloading position is where the injection molding part clamping mechanism is located directly below the flipping mechanism.
5. The deburring device for injection molded parts according to claim 3, characterized in that, The upper cutter assembly includes a fixed support, a buffer spring, and an upper cutter. The fixed support is disposed on the flip shaft, and the buffer spring is disposed between the upper cutter and the fixed support.
6. The deburring device for injection molded parts according to claim 3, characterized in that, The lower cutting blade assembly has a feeding channel in the middle for the injection molded part to pass through.
7. The deburring device for injection molded parts according to claim 3, characterized in that, The lower cutter assembly includes a lower cutter and a linear bearing, the linear bearing being mounted on the side of the lower cutter.
8. The deburring device for injection molded parts according to claim 7, characterized in that, The cutting surfaces of the upper and lower cutters work in a matching manner.
9. The deburring device for injection molded parts according to claim 1, characterized in that, The injection molding part clamping mechanism is a pneumatic gripper structure.
10. The deburring device for injection molded parts according to claim 1, characterized in that, It also includes an air blowing structure facing the burr removal mechanism.