A demolding and part taking mechanism

Abstract

The utility model discloses a kind of demolding piece taking mechanism, including ejection mechanism and piece taking mechanism. Piece taking mechanism includes fixed plate, rodless cylinder, support and jaw assembly, the cylinder body of rodless cylinder is located in fixed plate, guide rod both ends are fixed to support. Jaw assembly is installed in support, and in the ejection stage, rodless cylinder is in the state of broken gas, so that guide rod and support can be self-adapting floating. It is also integrated with purge pipe for cleaning mold. The present application can effectively compensate for alignment error through floating piece taking and fine adjustment design, avoid the interference between ejector pin and product, solve the problem that product is easy to jam or damage during demolding process, significantly improve the success rate of piece taking and production efficiency, especially suitable for multi-cavity automated production scene.

Description

Technical Field

[0001] This utility model relates to the field of casting and molding technology, specifically to a demolding and part removal mechanism. Background Technology

[0002] In the vertical parting process, after castings, sand cores, and other products are shaped in the mold, they need to be ejected from one side of the mold by an ejector mechanism to achieve demolding. However, in the vertical parting state, the product will fall directly due to gravity after being ejected, making it difficult for traditional robotic arms to effectively pick up and transfer them, thus hindering automated operation. If robotic arms are used to grip the product during the ejection process, rigid interference can easily occur due to slight alignment errors between the ejector mechanism and the robotic arm, leading to problems such as bent ejector pins, scratches on the product surface, or even jamming. This results in low success rate and reliability of product removal, severely restricting the improvement of production automation and efficiency. Therefore, there is an urgent need for an automated demolding and part removal solution that can adapt to the vertical parting condition, effectively avoid rigid interference during the ejection process, and reliably pick up the product. Utility Model Content

[0003] (I) Technical Solution

[0004] To solve the above-mentioned technical problems, this utility model provides a demolding and part removal mechanism.

[0005] The specific technical solution is as follows: a demolding and part-removing mechanism, including an ejection mechanism and a part-removing mechanism. The ejection mechanism includes a plurality of ejector pins, which can extend into the mold to eject the formed product. The part-removing mechanism includes a fixed plate, a rodless cylinder, a bracket, and a gripper assembly. The guide rod of the rodless cylinder is fixed at both ends on the bracket, and its cylinder body is set on the fixed plate. When the rodless cylinder is ventilated, it can drive the guide rod to slide relative to the cylinder body. The gripper assembly is installed on the bracket. When the gripper assembly is closed, it can clamp the formed product. The direction of the guide rod of the rodless cylinder is parallel to the direction of the ejector pins.

[0006] Furthermore, it also includes a purging mechanism, which includes several purging pipes connected to an air source. Each purging pipe has two air nozzles, corresponding to the cavities of the fixed mold and the moving mold, respectively.

[0007] Furthermore, each of the supports includes at least two gripper assemblies that are slidable relative to each other.

[0008] Furthermore, the gripper assembly includes a base and a pneumatic gripper. The bracket includes a horizontal base plate with a slide rail on the horizontal base plate. The base cooperates with the slide rail and can slide along it. The pneumatic gripper is mounted on the base and is used to clamp the formed product.

[0009] Furthermore, it also includes a limiting mechanism, which is used to limit the sliding range of the base.

[0010] Furthermore, the limiting mechanism includes two baffles, which are located at both ends of the slide rail and are used to abut against the base.

[0011] (ii) Beneficial effects

[0012] Compared with existing technologies, the rodless cylinder can float freely during the ejection stage, and with the finely adjustable sliding double gripper design, the part-removing mechanism has self-adaptive capabilities. It can absorb and compensate for the alignment error between the mold and the robot, avoiding ejector pin damage or product jamming that may occur during product ejection, and improving the reliability and success rate of demolding and part removal. At the same time, the integrated design of the double gripper and the blowing mechanism enables efficient synchronous part removal of dual-cavity products and automatic mold cleaning, improving the efficiency of the automated production line and the stability of the overall process. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of the present invention and the mold.

[0015] Figure 2 This is the left view of the present invention.

[0016] Figure 3 This is a schematic diagram of the gripper assembly in this utility model. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. The described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.

[0018] To address the problems existing in the relevant prior art, this utility model proposes a demolding and part removal mechanism. The principle and structure of this utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0019] Please see Figures 1-3This application provides a demolding and part-removing mechanism, including an ejection mechanism 30 and a part-removing mechanism. The ejection mechanism 30 includes a plurality of ejector pins 31, which can extend into the mold to eject the formed product. The number and arrangement of the ejector pins are set according to the shape of the mold. After the product is shaped in the mold, the ejection mechanism is used to eject it from the mold to complete the demolding.

[0020] The picking mechanism positions the formed product to prevent it from falling directly during the ejection process. The picking mechanism can be mounted on a multi-axis manipulator or on a drive mechanism formed by multiple linear modules, thus achieving multi-directional displacement. The picking mechanism includes a fixed plate 2, a rodless cylinder, a bracket 4, and a gripper assembly 5. The rodless cylinder is driven to move linearly by applying air pressure to the piston inside the cylinder tube. The guide rod 3 of the rodless cylinder is fixed at both ends to the two vertical side plates of the bracket 4, and its cylinder body 1 is mounted on the fixed plate 2, through which the multi-axis manipulator can be further connected. Because the cylinder body 1 is fixed, the guide rod is relatively free. When the rodless cylinder is ventilated, the cylinder body can drive the guide rod to slide relative to the cylinder body. After the air supply is cut off, the guide rod is in a free state because it can move freely. Similarly, in this application, the guide rod can also be set to a fixed state, and the cylinder body 1 can be set to a free state.

[0021] The gripper assembly 5 is mounted on the bracket. When closed, the gripper assembly 5 can clamp the molded product. The guide rod of the rodless cylinder is parallel to the direction of the ejector pin. When the rodless cylinder is ventilated, it pushes the guide rod to move the bracket, causing the gripper assembly 5 to reach the designated position. The gripper assembly 5 is then closed to clamp the product. At this time, the rodless cylinder stops ventilating, the ejection mechanism moves, and the ejector pin can smoothly push the product out of the mold cavity.

[0022] In this embodiment, a purging mechanism is also provided, which includes a plurality of purging pipes 6. The purging pipes 6 are connected to an air source. The purging pipes include air nozzles in two directions, which correspond to the mold cavities of the fixed mold 10 and the moving mold 20, respectively.

[0023] For the dual-cavity mold, this embodiment of the application provides a dual-gripper configuration. That is, each support has at least two gripper assemblies, and the two gripper assemblies can slide relative to each other. When there is a slight deviation in the mold position or support position, the gripper assemblies can be fine-tuned. Specifically, the gripper assembly includes a base 54 and a pneumatic gripper 51. The support includes a horizontal base plate 41, on which a slide rail 52 is provided. The base 54 cooperates with the slide rail 54 and can slide along it. The pneumatic gripper 51 is mounted on the base and is used to clamp the molded product. A limiting mechanism is also included to limit the sliding range of the base. The limiting mechanism can employ two baffles 53, located at opposite ends of the slide rail to abut against the base. This structure allows the gripper assembly to move freely, thereby automatically correcting displacement deviations.

[0024] The working process of this demolding and part-removing mechanism is as follows: First, a multi-axis robot or drive mechanism moves the entire part-removing mechanism to the corresponding position on the mold, aligning the gripper assembly with the product. Then, the rodless cylinder is activated, driving the guide rod and bracket to move the gripper assembly to the predetermined position and clamp the product. Next, the rodless cylinder stops activating, allowing the guide rod to move freely. At this time, the ejector pin of the ejection mechanism extends, ejecting the product from the mold cavity. During this process, the reaction force of the product on the gripper pushes the guide rod and bracket to make slight adaptive floating, thereby avoiding rigid interference between the ejector pin and the product and ensuring smooth demolding. After demolding, the part-removing mechanism, in conjunction with the multi-axis robot, transfers the product to the designated position, while the blower blows out gas to clean the mold cavities of the fixed and moving molds, preparing for the next molding cycle.

[0025] The beneficial effects of this technical solution are mainly reflected in the following aspects: By setting the guide rod of the rodless cylinder to float freely during the ejection stage, and combining it with a double gripper design that can be finely adjusted and slidable, the part-removing mechanism has self-adaptive capabilities, which can effectively absorb and compensate for the alignment error between the mold and the robot, avoiding possible ejector pin damage or product jamming during product ejection, and greatly improving the reliability and success rate of demolding and part removal; at the same time, the integrated design of the double gripper and the blowing mechanism realizes efficient synchronous part removal of dual-cavity products and automatic mold cleaning, which significantly improves the efficiency of the automated production line and the stability of the overall process.

[0026] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A demolding and part-removing mechanism, characterized in that: It includes an ejection mechanism and a part removal mechanism. The ejection mechanism includes a plurality of ejector pins, which can extend into the mold to eject the formed product. The part-removing mechanism includes a fixed plate, a rodless cylinder, a bracket, and a gripper assembly. The two ends of the guide rod of the rodless cylinder are fixed on the bracket, and its cylinder body is set on the fixed plate. When the rodless cylinder is ventilated, it can drive the guide rod to slide relative to the cylinder body. The gripper assembly is installed on the bracket. When the gripper assembly is closed, it can clamp the formed product. The direction of the guide rod of the rodless cylinder is parallel to the direction of the ejector pin.

2. The demolding and part-removing mechanism according to claim 1, characterized in that: It also includes a purging mechanism, which includes several purging pipes connected to an air source. Each purging pipe has two air nozzles, corresponding to the cavities of the fixed mold and the moving mold, respectively.

3. The demolding and part-removing mechanism according to claim 2, characterized in that: Each of the brackets includes at least two gripper assemblies that are slidable relative to each other.

4. The demolding and part-removing mechanism according to claim 3, characterized in that: The gripper assembly includes a base and a pneumatic gripper. The bracket includes a horizontal base plate with a slide rail on the horizontal base plate. The base cooperates with the slide rail and can slide along it. The pneumatic gripper is mounted on the base and is used to clamp the shaped product.

5. The demolding and part-removing mechanism according to claim 4, characterized in that: It also includes a limiting mechanism, which is used to limit the sliding range of the base.

6. The demolding and part-removing mechanism according to claim 5, characterized in that: The limiting mechanism includes two baffles, which are located at both ends of the slide rail and are used to abut against the base.

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