A floating core part fast locking and releasing mechanism in a mold

Abstract

The application relates to the technical field of injection molds, and discloses a mechanism for quickly locking and separating a floating core-pulling part in a mold, which comprises a fixed base, a cylinder, a movable connecting piece, a first locking block and a second locking block, the fixed base is fixed on a fixed mold plate of the mold, the cylinder is fixed on the fixed base, one end of a piston rod of the cylinder, which extends out of the fixed base, is fixedly connected with the movable connecting piece, the movable connecting piece is rotatably connected with the first locking block and the second locking block through pins on the two sides of the movable connecting piece, recesses are symmetrically arranged on the fixed base, the outer side walls of the recesses are stop faces, and the first locking block and the second locking block are respectively located in the corresponding recesses; the mechanism for quickly locking and separating a floating core-pulling part in a mold provided by the application solves the problem that existing floating core-pulling combined parts are manually locked to the fixed mold plate side of the mold, so that the product forming cycle is long, and there are hidden dangers.

Description

Technical Field

[0001] This invention relates to the field of injection mold technology, specifically to a mechanism for the rapid locking and unlocking of floating core-pulling parts within a mold. Background Technology

[0002] In the injection molds of connector products, conductive metal parts need to be embedded before injection molding with plastic overmolding. In order to realize the automated insertion of the metal inserts into the mold for injection molding, the mold parts need to be designed as floating core-pulling assembly parts. However, the existing floating core-pulling assembly parts are all manually operated to lock them to the fixed platen side of the mold, which makes the entire product molding cycle long and poses safety hazards. Summary of the Invention

[0003] The purpose of this invention is to provide a mechanism for the rapid locking and unlocking of floating core-pulling parts within a mold, in order to solve at least one of the aforementioned problems existing in the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A mechanism for the rapid locking and releasing of a floating core-pulling part within a mold includes a fixed base, a cylinder, a movable connecting member, a first locking block, and a second locking block. The fixed base is fixed to a fixed template of the mold, and the cylinder is fixed to the fixed base. One end of the piston rod of the cylinder extends out of the fixed base and is fixedly connected to the movable connecting member. The two sides of the movable connecting member are rotatably connected to the first locking block and the second locking block via pins. The fixed base has symmetrically arranged grooves, and the outer walls of the grooves are stop surfaces. The first locking block and the second locking block are respectively located in their corresponding grooves. The inner sides of the first locking block and the second locking block have locking hooks. A floating core-pulling assembly is initially positioned on the fixed template of the mold. The piston rod of the cylinder drives the movable connecting member to retract. The first locking block and the second locking block are pulled by the movable connecting member and squeezed by the stop surfaces, causing the first locking block and the second locking block to rotate inward around the pins until the two locking hooks clamp the clamping part of the floating core-pulling assembly.

[0006] In this technical solution, the cylinder is fixed on the fixed base, and the piston rod of the cylinder extends out of the fixed base and is fixedly connected to the movable connecting part. After the floating core-pulling assembly is initially positioned on the mold platen, the cylinder is activated, the piston rod retracts, and the movable connecting part moves with the piston rod. Since the two sides of the movable connecting part are rotatably connected to the first locking block and the second locking block by pins respectively, during the process of pulling the movable connecting part, since the fixed base is symmetrically provided with grooves, the outer wall of the groove is the stop surface, and the first locking block and the second locking block are respectively located in the corresponding grooves. The inner sides of the first locking block and the second locking block have locking hooks. During this process, the first locking block and the second locking block are pulled by the movable connecting part and squeezed by the stop surface, causing the first locking block and the second locking block to rotate inward around the pin until the two locking hooks clamp the clamping part of the floating core-pulling assembly, realizing a rapid locking action. After locking, the mold is closed for injection molding. After injection molding is completed, the piston rod of the cylinder extends and pushes the movable connecting part forward. While being pushed, the first locking block and the second locking block rotate outward around the pin, quickly separating the floating core-pulling assembly part from the mold platen.

[0007] In summary, this technical solution uses a cylinder to drive the first and second locking blocks to rotate, thereby achieving rapid locking and disengagement with the floating core-pulling assembly parts, shortening the molding injection cycle, improving the utilization rate of the injection molding machine, and reducing production costs.

[0008] Furthermore, the fixed base is equipped with a sensor for sensing the placement state of the floating core-pulling assembly. The sensor is electrically connected to a controller, which is in turn electrically connected to a cylinder. The sensor detects and feeds back information to the controller, which then controls the cylinder to pull the movable connecting piece back, thereby clamping the floating core-pulling assembly.

[0009] Furthermore, to facilitate sensor installation, the sensor is fixed to the mounting base using headless screws.

[0010] Furthermore, to facilitate the installation of the fixing base, the fixing base is fixed to the mold template by the first screw.

[0011] Furthermore, to facilitate cylinder installation, the cylinder is fixed to the mounting base by a second screw.

[0012] Furthermore, to facilitate the installation of the movable connector, the movable connector is fixed to the piston rod by a third screw.

[0013] Furthermore, to prevent the pin from falling out, the pin is secured with a headless screw.

[0014] Furthermore, in order to facilitate the initial positioning of the floating core-pulling assembly on one side of the mold platen, the mold platen is provided with multiple guide posts and precision positioning components, and the floating core-pulling assembly is provided with guide sleeves that mate with the guide posts and positioning sleeves that cooperate with the precision positioning components.

[0015] Furthermore, it also includes a robotic arm, which is used to initially position the floating core-pulling assembly on the fixed template of the mold, such that the guide sleeve of the floating core-pulling assembly engages with the guide post on the fixed template of the mold, and the positioning sleeve of the floating core-pulling assembly engages with the precision positioning component on the fixed template of the mold.

[0016] Before the next injection molding process begins after the mold has opened on the machine, a robotic arm can be used to place the floating core-pulling assembly into the fixed mold platen side using guide pillars and precision positioning components. This robotic arm enables fully automated production, ensuring safety and reliability, and avoiding the safety and time-consuming issues associated with manual operation inside the mold.

[0017] Furthermore, in order to achieve a better limiting effect, the stop surface is an inclined surface.

[0018] The beneficial effects of this invention are as follows: In this technical solution, since the cylinder is fixed on the fixed seat, and the piston rod of the cylinder extends out of the fixed seat and is fixedly connected to the movable connecting part, after the floating core-pulling assembly is initially positioned on the mold platen, the cylinder is started, the piston rod retracts, and the movable connecting part moves with the piston rod. Since the two sides of the movable connecting part are rotatably connected to the first locking block and the second locking block by pins respectively, during the process of pulling the movable connecting part, since the fixed seat is symmetrically provided with grooves, the outer wall of the groove is the stop surface, the first locking block and the second locking block are respectively located in the corresponding grooves, and the inner side of the first locking block and the second locking block have locking hooks. During this process, the first locking block and the second locking block are pulled by the movable connecting part and squeezed by the stop surface, causing the first locking block and the second locking block to rotate inward around the pin until the two locking hooks clamp the clamping part of the floating core-pulling assembly, realizing a rapid locking action. After locking, the mold is closed for injection molding. After injection molding is completed, the piston rod of the cylinder extends and pushes the movable connecting part forward. While being pushed, the first locking block and the second locking block rotate outward around the pin, quickly separating the floating core-pulling assembly part from the mold platen.

[0019] In summary, this technical solution uses a cylinder to drive the first and second locking blocks to rotate, thereby achieving rapid locking and disengagement with the floating core-pulling assembly parts, shortening the molding injection cycle, improving the utilization rate of the injection molding machine, and reducing production costs. Attached Figure Description

[0020] Figure 1 This is a structural diagram of the present invention in use;

[0021] Figure 2 This is a schematic diagram of the structure of the present invention without the floating core-pulling assembly parts installed;

[0022] Figure 3 for Figure 2 A schematic diagram of the local structure at point A in the middle;

[0023] Figure 4 This is a cross-sectional structural diagram of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of some components in this invention.

[0025] In the diagram: 1. Fixed base; 2. Cylinder; 3. Movable connector; 4. First locking block; 5. Second locking block; 6. Mold template; 7. Pin; 8. Groove; 9. Stop surface; 10. Floating core-pulling assembly; 11. Clamping part; 12. Sensor; 13. Headless screw; 14. First screw; 15. Second screw; 16. Third screw; 17. Guide post; 18. Precision positioning assembly; 19. Guide sleeve; 20. Positioning sleeve; 21. Connecting groove; 22. Locking hook. Detailed Implementation

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is for the purpose of helping to understand the present invention, but does not constitute a limitation of the present invention.

[0027] Example 1:

[0028] like Figures 1-5As shown, this embodiment provides a mechanism for the rapid locking and unlocking of a floating core-pulling part within a mold, including a fixed base 1, a cylinder 2, a movable connecting member 3, a first locking block 4, and a second locking block 5. The fixed base 1 is fixed on the mold's fixed template 6, and the cylinder 2 is fixed on the fixed base 1. One end of the piston rod of the cylinder 2 extends out of the fixed base 1 and is fixedly connected to the movable connecting member 3. The two sides of the movable connecting member 3 are rotatably connected to the first locking block 4 and the second locking block 5 respectively via pins 7. The fixed base 1 is symmetrically provided with grooves 8, and a connecting groove 21 is provided between the two grooves 8. The movable connecting member 3 is located in the connecting groove 21. Inside the groove 8, the outer wall of the groove is the stop surface 9. The first locking block 4 and the second locking block 5 are respectively located in the corresponding groove 8. The inner sides of the first locking block 4 and the second locking block 5 have locking hooks 22. The floating core-pulling assembly part 10 is initially positioned on the mold plate 6. The piston rod of the cylinder 2 drives the movable connecting piece 3 to retract. When the first locking block 4 and the second locking block 5 are pulled by the movable connecting piece 3, they are squeezed by the stop surface 9, causing the first locking block 4 and the second locking block 5 to rotate inward around the pin 7 until the two locking hooks 22 clamp the clamping part 11 of the floating core-pulling assembly part 10.

[0029] In this technical solution, since cylinder 2 is fixed on fixed base 1, and one end of the piston rod of cylinder 2 extending out of fixed base 1 is fixedly connected to movable connecting part 3, after the floating core-pulling assembly 10 is initially positioned on the mold fixed template 6, cylinder 2 is activated, piston rod retracts, and movable connecting part 3 moves with piston rod. Since both sides of movable connecting part 3 are rotatably connected to the first locking block 4 and the second locking block 5 respectively through pins 7, during the process of pulling movable connecting part 3, since the fixed base 1 is symmetrically provided with grooves 8, the grooves 8... The outer wall is the stop surface 9. The first locking block 4 and the second locking block 5 are respectively located in the corresponding grooves 8. The inner sides of the first locking block 4 and the second locking block 5 have locking hooks 22. During this process, the first locking block 4 and the second locking block 5 are pulled by the movable connecting piece 3 and squeezed by the stop surface 9, causing the first locking block 4 and the second locking block 5 to rotate inward around the pin 7 until the two locking hooks 22 clamp the clamping part 11 of the floating core-pulling assembly 10, realizing a rapid locking action. After locking, the mold is closed for injection molding. After injection molding is completed, the piston rod of the cylinder 2 extends and pushes the movable connecting piece 3 forward. While being pushed, the first locking block 4 and the second locking block 5 rotate outward around the pin 7, quickly realizing the separation of the floating core-pulling assembly 10 from the mold platen 6.

[0030] It should be noted that after assembling the inserts, they are placed into the mold for injection molding. The floating core-pulling assembly 10 achieves the floating core-pulling function when the mold opens. It can be a single part or a combination of multiple parts. The fixed base 1 is used to assemble and fix the parts required for the mechanism. After assembly, it is fixed to the mold platen 6. The movable connecting piece 3 connects the cylinder 2 and the two locking blocks, serving to connect and transmit motion. The first locking block 4 and the second locking block 5 serve to rotate and lock the floating core-pulling assembly 10 when it is inserted. After the mold opens, they rotate in the opposite direction to disengage and are connected to the movable connecting piece 3 using pins 7. The cylinder 2 is the driving source for realizing the orderly movement of the mechanism.

[0031] In summary, this technical solution uses cylinder 2 to drive the first locking block 4 and the second locking block 5 to rotate, thereby achieving rapid locking and disengagement with the floating core-pulling assembly part 10, shortening the molding injection cycle, improving the utilization rate of the injection molding machine, and reducing production costs.

[0032] Example 2:

[0033] This embodiment is an optimization based on the above embodiment one.

[0034] A sensor 12 is provided on the fixed base 1. The sensor 12 is used to sense the placement state of the floating core-pulling assembly 10. The sensor 12 is electrically connected to the controller, and the controller is electrically connected to the cylinder 2. The sensor 12 senses and feeds back information to the controller, and the controller controls the cylinder 2 to pull the movable connecting piece 3 back, thereby clamping the floating core-pulling assembly 10.

[0035] Example 3:

[0036] This embodiment is an optimization based on the above embodiment two.

[0037] To facilitate the installation of sensor 12, sensor 12 is fixed to mounting base 1 by headless screw 13.

[0038] Example 4:

[0039] This embodiment is an optimization based on the above embodiment one.

[0040] To facilitate the installation of the mounting base 1, the mounting base 1 is fixed to the mold template 6 by the first screw 14.

[0041] Example 5:

[0042] This embodiment is an optimization based on the above embodiment one.

[0043] To facilitate the installation of cylinder 2, cylinder 2 is fixed to the mounting base 1 by the second screw 15.

[0044] Example 6:

[0045] This embodiment is an optimization based on the above embodiment one.

[0046] To facilitate the installation of the movable connector 3, the movable connector 3 is fixed to the piston rod by the third screw 16.

[0047] Example 7:

[0048] This embodiment is an optimization based on the above embodiment one.

[0049] To prevent pin 7 from falling out, pin 7 is secured with headless screw 13.

[0050] Example 8:

[0051] This embodiment is an optimization based on the above embodiment one.

[0052] In order to facilitate the initial positioning of the floating core-pulling assembly 10 on one side of the mold fixed platen 6, the mold fixed platen 6 is provided with multiple guide posts 17 and precision positioning components 18. The floating core-pulling assembly 10 is provided with guide sleeves 19 that mate with the guide posts 17 and positioning sleeves 20 that cooperate with the precision positioning components 18.

[0053] Example 9:

[0054] This embodiment is an optimization based on the above embodiment one.

[0055] It also includes a robotic arm (not shown in the figure), which is used to initially position the floating core-pulling assembly 10 on the mold fixed platen 6, so that the guide sleeve 19 of the floating core-pulling assembly 10 cooperates with the guide post 17 on the mold fixed platen 6 and the positioning sleeve 20 of the floating core-pulling assembly 10 cooperates with the precision positioning component 18 on the mold fixed platen 6.

[0056] Before the next injection molding process begins after the mold has opened on the machine, a robotic arm (not shown in the figure) can place the floating core-pulling assembly 10 into the fixed mold plate 6 side of the mold using guide posts 17 and precision positioning components 18. This robotic arm (not shown in the figure) enables fully automated production, ensuring safety and reliability, and avoiding the safety and time-consuming issues associated with manual operation inside the mold.

[0057] Example 10:

[0058] This embodiment is an optimization based on the above embodiment one.

[0059] To achieve a better limiting effect, the stop surface 9 is an inclined surface.

[0060] The specific operating steps are as follows:

[0061] Before the next injection molding is performed after the mold has been opened on the machine, the robot (not shown in the figure) places the floating core-pulling assembly 10 into the mold's fixed template 6 side through the guide post 17 and the precision positioning component 18. The sensor 12 senses that the floating core-pulling assembly 10 has been initially positioned and feeds back the information to the controller. The controller controls the cylinder 2 to move, and the piston rod pulls the movable connecting piece 3. At the same time, the first locking block 4 and the second locking block 5 are pulled and acted on by the stop surface 9 of the fixed seat 1. The first locking block 4 and the second locking block 5 rotate inward around the pin 7, respectively, to quickly lock the floating core-pulling assembly 10. After locking, the mold is closed and injection molding is performed.

[0062] After injection molding, the mold opens, and the floating core-pulling assembly 10 and the product remain on the mold's fixed template 6 side. A robotic arm (not shown in the figure) extends into the mold to grab the floating core-pulling assembly 10. The controller controls the cylinder 2 to push the movable connecting piece 3 in the opposite direction. While being pushed, the first locking block 4 and the second locking block 5 rotate outward around the pin 7, quickly separating the floating core-pulling assembly 10 from the mold's fixed template 6. Afterward, the robotic arm (not shown in the figure) grabs another set of floating core-pulling assembly 10 outside the machine and inserts it into the mold, repeating the above actions in a cyclical injection molding process.

[0063] This technical solution solves the problems of long molding cycle and safety of manual operation by using a mechanism for the rapid locking and unlocking of floating core-pulling parts within the mold. Combined with the picking and placing actions of a robotic arm (not shown in the figure), it can achieve automation without human intervention, realize the placement and removal of floating core-pulling assembly parts, reduce production costs, improve production efficiency, and achieve fully automated production.

[0064] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A mechanism for rapid locking and unlocking of a floating core-pulling part within a mold, characterized in that: The device includes a fixed base, a cylinder, a movable connecting piece, a first locking block, and a second locking block. The fixed base is fixed to the mold template, and the cylinder is fixed to the fixed base. One end of the piston rod of the cylinder extends out of the fixed base and is fixedly connected to the movable connecting piece. The two sides of the movable connecting piece are rotatably connected to the first locking block and the second locking block via pins. The fixed base has symmetrical grooves, and the outer wall of the groove is a stop surface. The first locking block and the second locking block are located in their respective grooves. The inner sides of the first locking block and the second locking block have locking hooks. A floating core-pulling assembly is initially positioned on the mold template. The piston rod of the cylinder drives the movable connecting piece to retract. When the first locking block and the second locking block are pulled by the movable connecting piece, they are squeezed by the stop surface, causing the first locking block and the second locking block to rotate inward around the pins until the two locking hooks clamp the clamping part of the floating core-pulling assembly. The mold fixed template is provided with multiple guide pillars and precision positioning components, and the floating core pulling assembly is provided with guide sleeves that dock with the guide pillars and positioning sleeves that cooperate with the precision positioning components. It also includes a robotic arm, which is used to initially position the floating core-pulling assembly on the fixed template of the mold, so that the guide sleeve of the floating core-pulling assembly cooperates with the guide post on the fixed template of the mold, and the positioning sleeve of the floating core-pulling assembly cooperates with the precision positioning component on the fixed template of the mold.

2. The mechanism for rapid locking and releasing of a floating core-pulling part within a mold according to claim 1, characterized in that: The fixed base is equipped with a sensor, which is used to sense the placement status of the floating core-pulling assembly. The sensor is electrically connected to the controller, and the controller is electrically connected to the cylinder.

3. The mechanism for rapid locking and releasing of a floating core-pulling part within a mold according to claim 2, characterized in that: The sensor is fixed to the mounting base by a headless screw.

4. The mechanism for rapid locking and releasing of a floating core-pulling part within a mold according to claim 1, characterized in that: The fixing seat is fixed to the mold template by the first screw.

5. The mechanism for rapid locking and releasing of a floating core-pulling part within a mold according to claim 1, characterized in that: The cylinder is fixed to the mounting base by a second screw.

6. The mechanism for rapid locking and releasing of a floating core-pulling part within a mold according to claim 1, characterized in that: The movable connector is fixed to the piston rod by a third screw.

7. The mechanism for rapid locking and releasing of a floating core-pulling part within a mold according to claim 1, characterized in that: The pin is secured with a headless screw.

8. The mechanism for rapid locking and releasing of a floating core-pulling part within a mold according to claim 1, characterized in that: The stop surface is an inclined plane.

Images