Heating and blanking equipment for switching mold cores of injection molding machine

Abstract

The utility model provides a heating blanking equipment of injection molding machine switching mould core, including equipment platform and heating blanking device, the heating blanking device includes blanking mechanism, heating platform, material box and slipway module, the equipment platform is provided with slipway module, slipway module includes linear guide rail and guide rail motor, and the linear guide rail is provided with the material box. A heating platform is assembled on the linear guide rail; a guide rail motor drives the heating platform to reciprocate along the linear guide rail; the heating platform comprises a heating groove, a heater, a lifting platform and a lifting cylinder; the utility model aims to provide a heating and blanking device for switching a mold core of an injection molding machine, which is suitable for switching the mold core of the injection molding machine and is matched with the injection molding machine to periodically inject a workpiece, and an air knife is matched with automatic blanking to prevent the workpiece from being torn during manual blanking. And the mold core is preheated during waiting for mold core switching, so that the working efficiency can be improved.

Description

Technical Field

[0001] This utility model belongs to the field of injection molding machine mold core blanking, and in particular relates to a heating blanking device for switching injection molding machine mold cores. Background Technology

[0002] The working principle of injection molding is to inject molten plastic raw material into the mold cavity of a plastic mold through the screw of the injection molding machine under high pressure. After cooling and solidification, a molded plastic product is obtained. The mold core in the mold cavity is located in the center of the mold and is usually used to form the shape and surface features of the workpiece. Currently, after the injection molding machine completes the injection of the workpiece, it removes the mold core containing the injection workpiece, manually unloads the workpiece, and then puts it back into the mold core for re-injection. However, when the injection workpiece sticks to the mold core, manual unloading can cause the workpiece to tear; especially when producing workpieces that combine plastic and silicone, it is usually necessary to use a blower to cool the workpiece during unloading to avoid sticking to the mold core. Manual unloading is time-consuming and labor-intensive, affecting production efficiency; in addition, the mold core needs to be reheated after cooling for injection, extending the processing time. Utility Model Content

[0003] In view of this, the present invention aims to provide a heating and unloading device for changing mold cores in injection molding machines, which is suitable for changing mold cores in injection molding machines. It is coordinated with the injection cycle of injection molding workpieces, and the air knife is used for automatic unloading to prevent tearing of workpieces when unloaded manually. Preheating the mold core during the waiting period for changing mold cores can improve work efficiency.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] A heating and unloading device for switching mold cores in an injection molding machine includes an equipment platform and a heating and unloading device. The heating and unloading device includes an unloading mechanism, a heating platform, a material box, and a slide module. The slide module is provided on the equipment platform. The slide module includes a linear guide rail and a guide rail motor. The heating platform is mounted on the linear guide rail. The guide rail motor drives the heating platform to reciprocate along the linear guide rail.

[0006] The heating platform includes a heating tank, a heater, a lifting platform, and a lifting cylinder; the heating tank is equipped with a heater, the lifting platform is installed inside the heating tank, the lifting cylinder is installed at the bottom of the lifting platform, and the lifting cylinder drives the lifting platform to reciprocate in the vertical direction; the bottom of the heating tank is equipped with a drawer slide rail, the material box is mounted on the drawer slide rail, and the front panel of the material box is equipped with a handle;

[0007] The unloading mechanism includes a gantry, an unloading cylinder, an air knife, and an unloading clamp. The gantry is fixedly mounted on the equipment platform and spans the middle area of ​​the linear guide rail. The unloading cylinder is mounted on the gantry and connected to the lifting plate via an unloading lifting rod. The unloading cylinder drives the lifting plate to reciprocate vertically. The lifting plate is equipped with an unloading clamp and an air knife, with the air knife positioned along the side of the lifting plate. The unloading clamp includes a clamping plate and a clamping cylinder. There are two clamping plates, which are arranged opposite to each other. Each clamping plate is driven by the clamping cylinder to reciprocate horizontally.

[0008] Furthermore, the linear guide rail includes a first guide rail and a second guide rail arranged parallel to each other, with sliders respectively mounted on the first guide rail and the second guide rail, and the heating platform is mounted on the sliders of the first guide rail and the second guide rail on both sides respectively.

[0009] Furthermore, the lifting cylinder is connected to the lifting frame, and two lifting rods are installed on the lifting frame. A sliding groove is opened on the equipment platform; the lifting rods pass through the sliding grooves, and the lifting platform is mounted on the upper end of the lifting rods.

[0010] Furthermore, the feeding mechanism also includes a limiting device, which includes a limiting plate, a guide column, and a limiting seat. The guide column is fixedly connected to the gantry, the limiting plate is mounted on the lifting plate, and the limiting seat is provided on the limiting plate. The limiting seat is correspondingly set with the guide column.

[0011] Furthermore, the unloading fixture also includes a transmission plate and a guide rail slider assembly, with the clamping plate connected to the transmission plate; the fixture cylinder drives the transmission plate to reciprocate in the horizontal direction via the guide rail slider assembly.

[0012] Furthermore, the heating and feeding device includes two devices, which are arranged side by side on the equipment platform.

[0013] Furthermore, it also includes a frame, an electrical box, and a control panel. The equipment platform is mounted on the frame, and the electrical box and control panel are installed on the frame. The electrical box contains a controller, and the control panel has control buttons. The control buttons are connected to the controller, and the controller is electrically connected to the guide rail motor, lifting cylinder, unloading cylinder, and clamping cylinder.

[0014] Furthermore, it also includes a six-axis robot, which is positioned between the injection molding machine and the heating and unloading equipment to place the mold core from the injection molding machine into the heating tank.

[0015] Compared with existing technologies, the heating and unloading device for switching mold cores in injection molding machines described in this utility model has the following advantages:

[0016] This utility model relates to a heated unloading device for switching mold cores in injection molding machines. The unloading mechanism enables automatic unloading, and during automatic unloading, an air knife cools the mold core to prevent the injection molded parts from sticking together, solving the problem of tearing during manual unloading. The sliding module drives the heating platform to move, and the heating platform carries and heats the mold core. The heated unloading device, in conjunction with the injection molding machine's injection cycle, preheats the mold core while waiting for mold core switching, which can improve work efficiency and reduce working hours. Attached Figure Description

[0017] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of the heating and feeding device described in this embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the heating platform and its connection structure according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the feeding mechanism structure described in an embodiment of the present utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1-Frame; 2-Electrical box; 3-Control panel; 4-Equipment platform; 5-Slide module; 6-Material box; 7-Heating platform; 8-Unloading mechanism; 9-Handle; 10-Heating unloading device; 11-Guide rail motor; 12-First guide rail; 13-Slider; 14-Second guide rail; 15-Heater; 16-Heating tank; 17-Lifting platform; 18-Drawer slide rail; 20-Lifting cylinder; 21-Lifting frame; 22-Slide groove; 23-Lifting rod; 30-Unloading cylinder; 31-Unloading lifting rod; 32-Lifting plate; 33-Rail slider assembly; 34-Transmission plate; 35-Clamping plate; 36-Air knife; 37-Positioning column; 38-Clamping cylinder; 39-Gantry; 40-Limiting plate; 41-Limiting seat; 42-Guide column. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] like Figures 1 to 3As shown, a heating and unloading device for switching mold cores in an injection molding machine includes an equipment platform 4 and a heating and unloading device 10. The heating and unloading device 10 includes an unloading mechanism 8, a heating platform 7, a material box 6, and a sliding table module 5. The sliding table module 5 is provided on the equipment platform 4. The sliding table module 5 includes a linear guide rail and a guide rail motor 11. The heating platform 7 is mounted on the linear guide rail. The guide rail motor 11 drives the heating platform 7 to reciprocate along the linear guide rail.

[0026] The heating platform 7 includes a heating tank 16, a heater 15, a lifting platform 17, and a lifting cylinder 20. The heating tank 16 is equipped with the heater 15, and the lifting platform 17 is installed inside the heating tank 16. The lifting cylinder 20 is installed at the bottom of the lifting platform 17, and the lifting cylinder 20 drives the lifting platform 17 to reciprocate in the vertical direction. The bottom of the heating tank 16 is equipped with a drawer slide rail 18, and the material box 6 is mounted on the drawer slide rail 18. The front panel of the material box 6 is equipped with a handle 9.

[0027] The unloading mechanism 8 includes a gantry 39, an unloading cylinder 30, an air knife 36, and an unloading clamp. The gantry 39 is fixedly mounted on the equipment platform 4 and spans the middle area of ​​the linear guide rail. The unloading cylinder 30 is mounted on the gantry 39 and is connected to the lifting plate 32 via an unloading lifting rod 31. The unloading cylinder 30 drives the lifting plate 32 to reciprocate in the vertical direction. The lifting plate 32 is equipped with an unloading clamp and an air knife 36, which is arranged along the side of the lifting plate 32. The unloading clamp includes a clamping plate 35 and a clamping cylinder 38. There are two clamping plates 35, which are arranged opposite to each other. Each clamping plate 35 is driven by the clamping cylinder 38 to reciprocate in the horizontal direction.

[0028] The working principle of a heating and unloading device for switching mold cores in an injection molding machine is as follows: one end of the linear guide rail is the manual operation end, and the other end is the automatic heating end that is connected to the injection molding machine.

[0029] Step 1: The heating platform moves to the automatic heating end of the linear guide rail, and the mold core with the injection workpiece is placed on the heating platform. Step 2: The guide rail motor is started to drive the heating platform to move along the linear guide rail to the corresponding position below the unloading mechanism gantry. The unloading cylinder is started to drive the lifting plate downwards via the unloading lifting rod. The air knife is started to cool the mold core and the workpiece on it. The clamping cylinder is started to drive the two clamping plates to merge towards the center for unloading. In a more preferred embodiment, existing technology can be used to unload from the mold core cavity, i.e., an unloading channel is provided inside the mold core cavity, and the workpiece falls into the material box through the unloading channel. Step 3: The guide rail motor is started to drive the heating platform to move along the linear guide rail to the manual operation end. The lifting cylinder is started to drive the lifting platform to rise and eject the mold core. The operator checks the mold core for any residue and removes it if necessary. Step 4: The guide rail motor is started to drive the heating platform to move along the linear guide rail to the automatic heating end. The heater is started to preheat the mold core in the heating tank, ready for the mold core to be sent into the injection molding machine for workpiece injection.

[0030] The above steps are repeated cyclically to achieve automatic unloading using a heated unloading device, which also preheats the mold core after unloading. The unloading mechanism is cooled by air knives, which also blow air onto the injection molded part to prevent it from sticking to the mold core during unloading and causing tearing. The heated unloading device interfaces with the injection molding machine that requires mold core switching, coordinating with the injection molding cycle to unload and heat the mold core, improving work efficiency and preventing tearing caused by manual unloading.

[0031] like Figure 2 As shown, the linear guide rail includes a first guide rail 12 and a second guide rail 14 arranged parallel to each other. Slider blocks 13 are respectively mounted on the first guide rail 12 and the second guide rail 14. The heating platform 7 is mounted on the sliders 13 of the first guide rail 12 and the second guide rail 14 on both sides. This improves the stability of the movement of the heating platform 7.

[0032] like Figure 2 As shown, the lifting cylinder 20 is connected to the lifting frame 21, and two lifting rods 23 are installed on the lifting frame 21. A sliding groove 22 is opened on the equipment platform 4; the lifting rods 23 pass through the sliding groove 22, and the lifting platform 17 is mounted on the upper end of the lifting rods 23. The layout is reasonable and the structure is compact.

[0033] like Figure 3 As shown, the unloading mechanism 8 also includes a limiting device, which includes a limiting plate 40, a guide post 42, and a limiting seat 41. The guide post 42 is fixedly connected to the gantry 39, the limiting plate 40 is mounted on the lifting plate 32, and the limiting seat 41 is provided on the limiting plate 40. The limiting seat 41 is correspondingly arranged with the guide post 42. During the pressing process, the guide post 42 cooperates to insert into the limiting seat 41, which can play a positioning role.

[0034] like Figure 3As shown, the unloading fixture also includes a transmission plate 34 and a guide rail slider assembly 33, with the clamping plate 35 connected to the transmission plate 34; the fixture cylinder 38 drives the transmission plate 34 to reciprocate horizontally via the guide rail slider assembly 33, further improving the stability of the clamping plate 35's movement.

[0035] like Figure 1 As shown, the heating and feeding device 10 includes two devices, which are arranged side by side on the equipment platform 4. The two heating and feeding devices 10 operate alternately to further improve work efficiency.

[0036] like Figure 1 As shown, the system also includes a frame 1, an electrical box 2, and a control panel 3. The equipment platform 4 is mounted on the frame 1. The electrical box 2 and control panel 3 are mounted on the frame 1. The electrical box 2 houses a controller, and the control panel 3 has control buttons. The control buttons are connected to the controller, which electrically connects to the guide rail motor 11, lifting cylinder 20, unloading cylinder 30, and clamping cylinder 38. Preferably, the controller is a PLC controller. The PLC controller signal input is connected to the control buttons, and the PLC controller signal output is connected to the guide rail motor 11, lifting cylinder 20, unloading cylinder 30, and clamping cylinder 38. More preferably, the PLC controller signal output is also connected to a heater 15 and an air knife 36. This achieves automated control, improves production efficiency, and makes operation more convenient.

[0037] To further support automated injection molding, a six-axis robot is also included. This six-axis robot is positioned between the injection molding machine and the heating and unloading equipment to place the mold core from the injection molding machine into the heating tank 16. By docking the six-axis robot with the injection molding machine, automated production is achieved. Mold core switching is completed by the six-axis robot, saving time and labor. The six-axis robot includes a six-axis robotic arm and a mechanical gripper for unloading. The robotic arm has six degrees of freedom and typically has six built-in servo motors. The mechanical gripper can be a pneumatic mechanical claw used to grasp the mold core and can handle various trajectories and angles, enabling scenarios such as mold core loading and unloading.

[0038] This utility model aims to provide a heating and unloading device for switching mold cores in injection molding machines. The unloading mechanism enables automatic unloading, and the air knife cooperates with the automatic unloading to prevent sticking. The heating platform carries the mold core and heats it, and the sliding module drives the heating platform to move. In conjunction with the injection molding cycle of the injection molding machine, the mold core is preheated while waiting to switch mold cores, which can improve work efficiency.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heating and unloading device for switching mold cores in an injection molding machine, characterized in that: The device includes an equipment platform (4) and a heating and unloading device (10). The heating and unloading device (10) includes a unloading mechanism (8), a heating platform (7), a material box (6), and a sliding table module (5). The equipment platform (4) is equipped with a sliding table module (5). The sliding table module (5) includes a linear guide rail and a guide rail motor (11). The heating platform (7) is mounted on the linear guide rail. The guide rail motor (11) drives the heating platform (7) to move back and forth along the linear guide rail. The heating platform (7) includes a heating tank (16), a heater (15), a lifting platform (17), and a lifting cylinder (20); the heating tank (16) is equipped with a heater (15), the lifting platform (17) is installed inside the heating tank (16), the lifting cylinder (20) is installed at the bottom of the lifting platform (17), and the lifting cylinder (20) drives the lifting platform (17) to move back and forth in the vertical direction; the bottom of the heating tank (16) is equipped with a drawer slide rail (18), the material box (6) is mounted on the drawer slide rail (18), and the front panel of the material box (6) is equipped with a handle (9); The unloading mechanism (8) includes a gantry (39), an unloading cylinder (30), an air knife (36), and an unloading clamp; the gantry (39) is fixedly mounted on the equipment platform (4) and spans the middle area of ​​the linear guide rail; the unloading cylinder (30) is mounted on the gantry (39), and the unloading cylinder (30) is connected to the lifting plate (32) through the unloading lifting rod (31), and the unloading cylinder (30) drives the lifting plate (32) to move back and forth in the vertical direction; the unloading clamp and the air knife (36) are mounted on the lifting plate (32), and the air knife (36) is mounted along the side of the lifting plate (32); the unloading clamp includes a clamping plate (35) and a clamping cylinder (38), and the clamping plate (35) includes two clamping plates (35) which are arranged opposite to each other; each clamping plate (35) is driven by the clamping cylinder (38) to move back and forth in the horizontal direction.

2. The heating and unloading device for switching mold cores in an injection molding machine according to claim 1, characterized in that: The linear guide rail includes a first guide rail (12) and a second guide rail (14) arranged parallel to each other. Slider (13) is mounted on the first guide rail (12) and the second guide rail (14). The heating platform (7) is mounted on the slider (13) of the first guide rail (12) and the second guide rail (14) on both sides.

3. The heating and unloading device for switching mold cores in an injection molding machine according to claim 1, characterized in that: The lifting cylinder (20) is connected to the lifting frame (21), and two lifting rods (23) are provided on the lifting frame (21). A sliding groove (22) is provided on the equipment platform (4); the lifting rods (23) pass through the sliding groove (22), and the lifting platform (17) is erected on the upper end of the lifting rods (23).

4. The heating and unloading device for switching mold cores in an injection molding machine according to claim 1, characterized in that: The feeding mechanism (8) also includes a limiting device, which includes a limiting plate (40), a guide column (42) and a limiting seat (41). The guide column (42) is fixedly connected to the gantry (39). The limiting plate (40) is mounted on the lifting plate (32). The limiting seat (41) is provided on the limiting plate (40). The limiting seat (41) is correspondingly provided with the guide column (42).

5. The heating and unloading device for switching mold cores in an injection molding machine according to claim 1, characterized in that: The unloading fixture also includes a transmission plate (34) and a guide rail slider assembly (33), and the clamping plate (35) is connected to the transmission plate (34); the clamping cylinder (38) drives the transmission plate (34) to reciprocate in the horizontal direction through the guide rail slider assembly (33).

6. The heating and unloading device for switching mold cores in an injection molding machine according to claim 1, characterized in that: The heating and feeding device (10) includes two devices, which are arranged side by side on the equipment platform (4).

7. The heating and unloading device for switching mold cores in an injection molding machine according to claim 1, characterized in that: It also includes a frame (1), an electrical box (2) and a control panel (3). The equipment platform (4) is mounted on the frame (1). The electrical box (2) and the control panel (3) are mounted on the frame (1). A controller is installed in the electrical box (2). Control buttons are installed on the control panel (3). The control buttons are connected to the controller. The controller is electrically connected to the guide rail motor (11), the lifting cylinder (20), the unloading cylinder (30) and the clamping cylinder (38).

8. The heating and unloading device for switching mold cores in an injection molding machine according to claim 1, characterized in that: It also includes a six-axis robot, which is positioned between the injection molding machine and the heating and unloading equipment, for placing the mold core from the injection molding machine into the heating tank (16).

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