A multi-station blanking mechanism for injection molding of a winding terminal plate

Abstract

The utility model discloses a kind of multi-station blanking mechanism for winding end plate injection molding production, and its characterized in that: including with the rotation connection of mechanical hand execution end, and with the multi-station grabbing and clamping assembly of mounting base connection and the rotary drive device of driving mounting base rotation drives the rotation of multi-station grabbing and clamping assembly;The multi-station grabbing and clamping assembly includes with the longitudinal support rod of mounting base fixed connection and at least one horizontal support rod being vertically fixed on longitudinal support rod, several pairs of pneumatic clamping jaw being arranged on horizontal support rod;The utility model is through the several pairs of pneumatic clamping jaw of setting on multi-station grabbing and clamping assembly, realize the function of simultaneously grabbing multiple winding end plate in single action, effectively reduce the reciprocating frequency between mould cavity and blanking point of mechanical hand, optimize original single-piece blanking mode to batch blanking mode, to greatly shorten production rhythm, significantly improve the efficiency of whole injection molding production line.

Description

Technical Field

[0001] This utility model relates to the technical field of automated injection molding production equipment, specifically a multi-station unloading mechanism for injection molding of winding end plates. Background Technology

[0002] In the injection molding process of winding end plates, the molded workpiece needs to be removed from the mold and transferred to subsequent processes (such as cooling, inspection, stacking, etc.). Traditional unloading methods mostly use single-station gripping mechanisms, which can only grip one workpiece at a time, resulting in low unloading efficiency and difficulty in matching the cycle time requirements of high-speed injection molding production lines. In addition, some unloading mechanisms have insufficient clamping stability, which can easily lead to workpiece falling off, affecting production continuity and product quality. To address this, a multi-station unloading mechanism for the injection molding production of winding end plates is proposed. Utility Model Content

[0003] The purpose of this invention is to solve the above problems by proposing a multi-station unloading mechanism for injection molding production of winding end plates.

[0004] To achieve the above objectives, the following technical solution is provided: a multi-station unloading mechanism for injection molding production of winding end plates, characterized in that: it includes a mounting base rotatably connected to the end effector of a robotic arm, a multi-station gripping assembly connected to the mounting base, and a rotary drive device that drives the multi-station gripping assembly to rotate by driving the mounting base to rotate; the multi-station gripping assembly includes a longitudinal support rod fixedly connected to the mounting base and at least one transverse support rod vertically fixed to the longitudinal support rod, and several pairs of pneumatic grippers disposed on the transverse support rod; the piston rod of the pneumatic grippers is provided with a clamping plate for gripping the winding end plate.

[0005] Preferably, the inner wall of the clamp is provided with anti-slip texture.

[0006] Preferably, one end of the mounting base is provided with a clamping block connected to the longitudinal support rod, and the other end is provided with a gear that meshes with the rotary drive device.

[0007] Preferably, the rotary drive device includes a drive member, a rack that is driven by the drive member to perform linear motion and meshes with a gear on the mounting base, and a transition block that is connected to the outer side of the manipulator's end effector and rotatably connected to the mounting base.

[0008] Preferably, the transverse support rod is equipped with a photoelectric sensor for detecting the workpiece position or clamping status.

[0009] The beneficial effects of this utility model are as follows: by setting several pairs of pneumatic grippers on the multi-station gripping assembly, the function of gripping multiple winding end plates in a single action can be realized, which effectively reduces the number of reciprocating motions of the robot arm between the mold cavity and the unloading point, optimizes the original single-piece unloading mode into a batch unloading mode, thereby greatly shortening the production cycle and significantly improving the efficiency of the entire injection molding production line. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the connection structure between the mounting base and the rotary drive device of this utility model; Figure 3 This is a schematic diagram of the multi-station gripper assembly structure of this utility model; Figure 4 This is a schematic diagram of the mounting base structure of this utility model.

[0011] Legend: 1. Mounting base; 11. Clamping block; 12. Gear; 2. Multi-station gripper assembly; 21. Longitudinal support rod; 22. Transverse support rod; 23. Pneumatic gripper; 231. Clamping plate; 3. Rotary drive device; 31. Drive component; 32. Rack; 33. Adapter block. Detailed Implementation

[0012] The following description, in conjunction with the accompanying drawings, further illustrates the multi-station unloading mechanism for injection molding production of winding end plates according to this utility model.

[0013] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indication will also change accordingly.

[0014] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0015] See appendix Figure 1-4As shown in this embodiment, a multi-station unloading mechanism for injection molding production of winding end plates is characterized by: a mounting base 1 rotatably connected to the end effector of a robotic arm, a multi-station gripper assembly 2 connected to the mounting base 1, and a rotary drive device 3 that drives the multi-station gripper assembly 2 to rotate by driving the mounting base 1 to rotate; the multi-station gripper assembly 2 includes a longitudinal support rod 21 fixedly connected to the mounting base 1 and at least one transverse support rod 22 vertically fixed to the longitudinal support rod 21, and several pairs of pneumatic grippers 23 disposed on the transverse support rod 22; the piston rod of the pneumatic gripper 22 is provided with a clamping plate 231 for gripping the winding end plate; the robotic arm is mounted on the injection molding machine and can synchronously grip multiple wound plates after molding in accordance with the production rhythm of the injection molded parts, and each pair of pneumatic grippers 23 is symmetrically arranged by two cylinders; the piston rods of the two cylinders are respectively connected to a piece of... The clamping plate 231 forms an opposing clamping structure. The longitudinal support rod 21 and the transverse support rod 22 are both made of high-strength alloy profiles, which have good load-bearing capacity and anti-deformation capacity, providing long-term stable support for the entire multi-station gripping assembly 2. The number of transverse support rods 22 can be reasonably set according to the number of winding end plates distributed longitudinally on the mold cavity. For example, when there are 3 sets of winding end plates distributed longitudinally on the mold cavity, 3 transverse support rods 22 can be set accordingly to ensure that each transverse support rod 22 can cover a set of longitudinally distributed products. The number of pneumatic grippers 23 paired on a single transverse support rod 22 is matched according to the number of winding end plates arranged transversely on the mold cavity. For example, when there are 4 winding end plates arranged transversely in a single row on the mold cavity, 4 pairs of pneumatic grippers 23 are set on a single transverse support rod 22 to completely fit the product distribution in the mold cavity and meet the gripping requirements of all products after a single injection molding.

[0016] During operation, the robotic arm lowers the multi-station gripper assembly 2 and moves it to a position aligned with the front of the winding end plate inside the mold cavity. Then, the robotic arm slowly moves towards the mold cavity, precisely inserting the wall portion of each winding end plate into the space between the two clamping plates 231 of the corresponding pair of pneumatic grippers 23. The unfolded width of a single pneumatic gripper 23 in its open state is less than the inner diameter of the winding end plate to prevent interference between the clamping plates 231 and the inner diameter of the end plate during clamping. Specifically, the clamping position is as follows: a cylinder in one of the pair of pneumatic grippers 23 drives the clamping plate 231 to extend into the inner diameter of the winding end plate. Inside the circle, the inner circumferential surface of the winding end plate is tightly fitted and clamped, while another cylinder drives the clamping plate 231 to fit against the outer circumferential surface of the winding end plate, forming a two-way fixed structure of "inner support and outer clamping", which greatly improves the clamping stability. When the clamping action is started, all pneumatic grippers 23 move synchronously. After the cylinder is vented, the piston rod extends at a constant speed, pushing the clamping plates 231 on both sides to move towards each other until the clamping plates 231 are tightly fitted against the surface of the winding end plate. The clamping force can be flexibly adjusted according to the material of the winding end plate, such as plastic or alloy, to prevent over-clamping from causing product damage or loose clamping from causing it to fall.

[0017] The robotic arm first moves the multi-station gripper assembly 2 smoothly away from the mold cavity, ensuring that all winding end plates are completely detached from the mold cavity without any impact. Then, it moves to the winding end plate collection box or directly above the conveyor belt. At this time, the rotary drive device 3 receives the control signal and starts, outputting power through the drive component 31 to drive the rack 32 to move linearly. The rack 32 meshes with the gear 12 on the mounting base 1, thereby driving the mounting base 1 and the multi-station gripper assembly 2 to rotate as a whole. The rotation angle can be set according to the requirements of the unloading scenario. The rotation angle is typically 90°-180°, ensuring that all winding end plates face the downward-facing collection box or conveyor belt. Once the rotation is complete and the mechanism is stable, the cylinder of the pneumatic gripper 23 exhausts air, the piston rod resets, and the clamping plate 231 opens synchronously. Under the influence of gravity, the winding end plates fall smoothly onto the collection box or conveyor belt, successfully completing one unloading cycle. Subsequently, the rotary drive device 3 drives the multi-station gripping assembly 2 to rotate in the opposite direction and reset. The robot moves back to the vicinity of the mold cavity to wait for the next gripping operation after injection molding.

[0018] By setting several pairs of pneumatic grippers 23 on the multi-station gripper assembly 2, the function of gripping multiple winding end plates in a single action can be realized. This effectively reduces the number of reciprocating motions of the robot between the mold cavity and the unloading point, and optimizes the original single-piece unloading mode into a batch unloading mode, thereby greatly shortening the production cycle and significantly improving the efficiency of the entire injection molding production line.

[0019] See appendix Figure 1 , 3 As shown, the inner wall of the clamping plate 231 is provided with anti-slip texture, which is serrated or grid-like. The clamping plate can be made of soft rubber material, which can effectively buffer and evenly distribute the clamping force when clamping the winding end plate, thereby avoiding indentation, scratches or wear on the surface of the winding end plate due to rigid contact. At the same time, the anti-slip texture can ensure that the robot arm firmly clamps the winding end plate on the pneumatic gripper 23 during the transfer process, which significantly improves the stability of the clamping.

[0020] See appendix Figure 2 , 4As shown, one end of the mounting base 1 is connected to a clamping block 11 that is connected to a longitudinal support rod 21, and the other end is provided with a gear 12 that meshes with a rotary drive device 3. The rotary drive device 3 includes a drive component 31, a rack 32 that is driven by the drive component 31 to perform linear motion and meshes with the gear 12 on the mounting base 1, and a transition block 33 that is connected to the outer side of the manipulator's execution end and rotatably connected to the mounting base 1. The clamping block 11 is fixedly connected to the longitudinal support rod 21 by bolts. The transition block 33 and the gear 12 are provided with interconnected through holes and can be connected by bolts or pins. When the multi-station gripping assembly 2 rotates, the drive component 31 drives the rack 32 to extend, and the rack 32 meshes with the gear 12 on the mounting base 1, driving the mounting base 1 to rotate around the transition block 33, thereby driving the longitudinal support rod 21 connected to the mounting base 1 to rotate, so that the entire multi-station gripping assembly 2 rotates, thereby adjusting the orientation of the winding end plate to facilitate accurate material feeding.

[0021] See appendix Figure 1 , 3 As shown, the transverse support rod 21 is equipped with a photoelectric sensor for detecting the position or clamping status of the workpiece; the photoelectric sensor is electrically connected to the control system on the injection molding machine and is used to feed back the detection signal to the control system in real time, so as to ensure that the control system can accurately control each actuator based on the real-time status data and accurately complete the preset gripping and unloading program.

[0022] During the use of this utility model, after the equipment is powered on, the control system automatically completes the initialization program, including the status detection of each component and parameter calibration. At the same time, the robot receives the instruction from the control system, automatically returns to the preset origin position, enters the standby state, and waits for the work trigger signal sent by the injection molding machine. At this time, the multi-station gripping assembly 2 maintains a vertical posture and is in a ready-to-grip state. The piston rods of each pneumatic gripper 23 are in a retracted state, and the clamping plate 231 is in an open ready-to-grip state to ensure that the winding end plate can be smoothly accommodated in the future. After the injection molding machine completes one injection molding cycle and opens the mold, it sends a working signal to the robot control system. Upon receiving the signal, the robot immediately moves the multi-station gripper assembly 2 along a preset trajectory to directly above the mold cavity. It then slowly descends, using photoelectric sensors to align with the winding end plates inside the mold, ensuring precise positioning. After alignment, the robot moves smoothly laterally along the mold cavity, ensuring that the wall of each winding end plate precisely extends between the two clamping plates 231 of the corresponding pair of pneumatic grippers 23, and that the wall of the winding end plate is in contact with the mold cavity. There is no collision interference with the clamping plate 231; then, the control system sends a clamping command to the pneumatic gripper 23, the cylinder of the pneumatic gripper 23 is vented, the piston rod extends synchronously, pushing the clamping plates 231 on both sides to move towards each other at a uniform speed until they tightly clamp the wall of the winding end plate, and the clamping force is controlled within the preset safety range to prevent the product from being damaged or falling off; after the clamping action is completed, the robot arm carries the gripped winding end plate and moves it smoothly away from the mold cavity to avoid scratching the mold, and then moves along the preset path to the collection box or directly above the conveyor belt, ready for the subsequent unloading operation.

[0023] Next, the rotary drive device 3 receives the action command from the control system and starts: the drive component 31 outputs power, pushing the rack 32 to move linearly in a preset direction; since the rack 32 precisely meshes with the gear 12 on the mounting base 1, the linear motion of the rack 32 is converted into the rotational motion of the gear 12, driving the mounting base 1 to rotate smoothly around the transition block 33; the mounting base 1 is fixedly connected to the longitudinal support rod 21 through its own clamping block 11, further driving the longitudinal support rod 21 and the entire multi-station gripping assembly 2 to rotate synchronously, and the rotation angle can be adjusted according to the collection box or the conveyor belt. The height and position of the conveyor belt can be flexibly set, typically from 90° to 180°, ensuring that the winding end plate is precisely aligned with the collection box or conveyor belt below. Finally, the pneumatic gripper 23 receives the release command, the cylinder exhausts air, and the piston rod retracts synchronously, causing the clamping plate 231 to open to both sides. Under the action of gravity, the winding end plate falls smoothly into the collection box or conveyor belt, thus completing a full unloading cycle. Subsequently, the rotary drive device 3 drives the multi-station gripping assembly 2 to rotate in the opposite direction and reset, the robot returns to the standby position, and the entire system enters a standby state, waiting for the next cycle of work commands.

[0024] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A multi-station unloading mechanism for injection molding production of wound end plates, characterized in that: The device includes a mounting base (1) that is rotatably connected to the end effector of the robotic arm, a multi-station gripper assembly (2) connected to the mounting base (1), and a rotary drive device (3) that drives the multi-station gripper assembly (2) to rotate by driving the mounting base (1) to rotate; the multi-station gripper assembly (2) includes a longitudinal support rod (21) fixedly connected to the mounting base (1) and at least one transverse support rod (22) vertically fixed on the longitudinal support rod (21), and several pairs of pneumatic grippers (23) provided on the transverse support rod (22); the piston rod of the pneumatic gripper (23) is provided with a clamping plate (231) for clamping the winding end plate.

2. The multi-station unloading mechanism for injection molding production of winding end plates according to claim 1, characterized in that: The inner wall of the clamp (231) is provided with anti-slip texture.

3. The multi-station unloading mechanism for injection molding production of winding end plates according to claim 1, characterized in that: The mounting base (1) has a clamp (11) at one end connected to a longitudinal support rod (21), and a gear (12) at the other end meshing with a rotary drive device (3).

4. The multi-station unloading mechanism for injection molding production of winding end plates according to claim 3, characterized in that: The rotary drive device (3) includes a drive member (31), a rack (32) driven by the drive member (31) to perform linear motion and meshing with a gear (12) on the mounting base (1), and a transfer block (33) connected to the outer side of the end of the robot and rotatably connected to the mounting base (1).

5. The multi-station unloading mechanism for injection molding production of winding end plates according to claim 1, characterized in that: The transverse support rod (22) is equipped with a photoelectric sensor for detecting the position or clamping status of the workpiece.

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