Secondary injection molding automatic production line

Abstract

The utility model provides a secondary injection molding automatic production line, and relates to the technical field of injection molding equipment. Comprising a transmission assembly line and further comprises a mold implanting module, an injection molding module, a carrying manipulator module, an upper mold dismounting module, a material taking head module, a forced demolding module and a discharging module which are arranged along the transmission assembly line. According to the scheme, the automation degree of secondary injection molding of small parts is improved, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding equipment, in particular to an automatic secondary injection molding production line. Background Art

[0002] When performing secondary injection molding on some relatively small metal parts, most of the current processes use manual loading and unloading. The workpiece is manually placed into the mold, and then placed into the injection molding machine by a handling robot for injection molding. After the injection molding is completed, the mold is disassembled and the injection port is removed to obtain a product with secondary injection molding. Then, in this process, especially when unloading, the temperature of the product just unloaded is high, so it is easy to scald the staff; on the other hand, the production line operated by manual operation has a low degree of automation, low production efficiency, and it is difficult to guarantee the production quality. In addition, due to the small size of the parts, it is difficult to guarantee the accuracy of the grasping. Utility Model Content

[0003] The utility model discloses a secondary injection molding automatic production line, aiming to solve the above-mentioned technical problems.

[0004] The utility model adopts the following scheme:

[0005] The present application provides a secondary injection molding automatic production line, including a transmission assembly line, characterized in that it also includes a mold implantation module, an injection molding module, a handling robot module, an upper mold removal module, a material taking head module, a forced stripping module and a material unloading module arranged along the transmission assembly line; wherein the transmission assembly line is suitable for driving the tooling and fixture to flow between the positions of each process module; the mold implantation module includes a lower mold implantation module, a workpiece implantation module and an upper mold implantation module; the lower mold implantation module is suitable for implanting at least one lower mold into the tooling and fixture; the lower mold is provided with at least one workpiece slot for storing the workpiece; the The upper mold implantation module is used to install the upper mold to the lower mold to form a mold assembly; the handling robot module is suitable for grabbing the mold assembly in the tooling fixture and putting it into the injection molding module to perform secondary injection molding on the workpiece in the mold assembly, and after the injection molding is completed, the mold assembly is transported back to the tooling fixture on the transmission assembly line; the upper mold removal module is suitable for removing the upper mold of the mold assembly after the secondary injection molding to expose the material head; the material removal module is suitable for removing the material head on the workpiece after the upper mold of the mold assembly is removed; the forced removal module is used to eject the workpiece from the lower mold; the unloading module is suitable for unloading the workpiece.

[0006] Furthermore, the workpiece implanting module includes a first rubber sleeve implanting module, a workpiece implanting assembly, and a clamping module, wherein the first rubber sleeve implanting module includes a direct vibration module, a circular vibration module and a first three-axis grasping mechanism, the circular vibration module is connected to the direct vibration module to vibrate a plurality of first rubber sleeves to arrange them neatly at the end of the direct vibration module, and grasp the first rubber sleeves into the workpiece slot of the lower mold through the first three-axis grasping mechanism; a second rubber sleeve is installed on the top surface of the workpiece, the workpiece implanting module includes a loading tool, and the loading tool is provided with a plurality of clamps arranged in the same manner as the lower mold on the tooling fixture to synchronously implant a plurality of workpieces and the second rubber sleeve into the workpiece slot where the first rubber sleeve is placed; the clamping module includes a clamping block having the same arrangement as the workpiece slot to clamp the workpiece, the first rubber sleeve and the second rubber sleeve in the workpiece slot to form a product assembly.

[0007] Furthermore, the upper mold implantation module includes a second three-axis grasping module, a first camera detection component and a rotating component. The first camera detection component is suitable for detecting the position of the lower mold in the tooling fixture. The second three-axis grasping module is used to grasp the upper mold and install it on the lower mold to form a mold assembly with the product component placed therein.

[0008] Furthermore, the upper mold implantation module also includes a rotating component, which includes a rotating cylinder to drive the tooling fixture to rotate 90°; the rotating component is also provided with a lifting cylinder, a tooling positioning component, and a check assembly, the lifting cylinder is used to drive the tooling fixture on the transmission assembly line to lift and lower, the tooling positioning component is used to position the tooling fixture when the tooling fixture flows to a specified position for upper mold implantation, and the check assembly is used to limit the retreat of the tooling fixture.

[0009] Furthermore, the material picking head module includes a moving module, a lifting mechanism and a material picking head clamp; a plurality of the material picking head clamps are arranged on the lifting mechanism to synchronously remove the material heads on multiple workpieces, and the lifting mechanism is arranged on the moving module to control the movement of the material picking head clamps through the moving module.

[0010] Furthermore, the forced-ejection module includes a cache platform and a forced-ejection ejector pin, the cache platform is provided with a positioning component to position and fix the tooling fixture; the forced-ejection ejector pin is arranged below the cache platform, and is provided with a lifting device to drive the forced-ejection ejector pin to eject the product component from the lower mold.

[0011] Furthermore, the cache platform includes an ejection hole arranged above the transmission assembly line to facilitate ejection of the product component by a forced ejection pin, and also includes a cache panel arranged on the side of the ejection hole, and a cooling module is arranged under the cache panel for cooling the product component.

[0012] Further, the blanking module includes a first rubber sleeve grabbing component, a workpiece and second rubber sleeve separation component and a blanking component;

[0013] Wherein, the first rubber sleeve grabbing assembly includes a conveying assembly, a pressing plate, a flipping platform assembly, and a first rubber sleeve grabbing assembly, the conveying assembly includes a first conveying module and a second conveying module, the first conveying module is suitable for conveying the product assembly from the buffer platform to the material tray on the flipping platform assembly, the second conveying module is used to convey the product assembly after taking out the first rubber sleeve from the flipping platform assembly to the workpiece and the second rubber sleeve separation assembly, the flipping platform assembly is used to drive the material tray and the product assembly placed on the material tray to flip, so that the first rubber sleeve is exposed on one side of the first rubber sleeve grabbing assembly, the pressing plate is suitable for pressing on the material tray to press the product assembly, thereby facilitating the separation of the first rubber sleeve from the product assembly;

[0014] The workpiece and second rubber sleeve separation assembly includes a splitting assembly, and the splitting assembly includes an ejector device to eject the workpiece out of the second rubber sleeve, so that the workpiece and the second rubber sleeve are separated;

[0015] The unloading assembly includes a first unloading mechanism and a second unloading mechanism, and the first unloading mechanism and the second unloading mechanism are suitable for respectively transporting the workpiece and the second rubber sleeve to the unloading position.

[0016] Furthermore, the unloading module also includes a material tray assembly and a material tray lifting assembly. The material tray lifting module includes an upper tray station and a placing station. The upper tray station is provided with a material tray lifting module for lifting the empty unloading material tray to the height of the swinging material; the material tray assembly is arranged above the upper tray station and the swinging tray station, and is used to grab the unloading material tray from the upper tray station to the swinging tray station when the unloading material tray is lifted to the swinging tray height at the upper tray station; the swinging tray station is provided with another material tray lifting module, which is used to drive the unloading material tray to descend to a certain height after the swinging tray is completed to facilitate the unloading of the workpiece.

[0017] Beneficial effects:

[0018] The utility model can realize secondary injection molding of tiny parts by setting a complete secondary injection molding process circuit, improve injection molding efficiency, reduce manual workload in the whole process, and even complete the entire secondary injection molding process without manual assistance, thereby improving injection molding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural schematic diagram of an automatic secondary injection molding production line according to an embodiment of the utility model;

[0020] Figure 2 It is a structural schematic diagram of a mold implantation module of a secondary injection molding automatic production line according to an embodiment of the utility model;

[0021] Figure 3 It is a structural schematic diagram of an upper mold implantation module of a secondary injection molding automatic production line according to an embodiment of the utility model;

[0022] Figure 4 It is a structural schematic diagram of a preheating module of a secondary injection molding automatic production line according to an embodiment of the utility model;

[0023] Figure 5 It is a structural schematic diagram of a material taking head module and a forced stripping module of a secondary injection molding automatic production line according to an embodiment of the utility model;

[0024] Figure 6 It is a structural schematic diagram of a forced stripping module of a secondary injection molding automatic production line according to an embodiment of the utility model;

[0025] Figure 7 This is a structural schematic diagram of a first rubber sleeve grabbing assembly of a secondary injection molding automatic production line according to an embodiment of the utility model;

[0026] Figure 8 It is a structural schematic diagram of a material unloading module of a secondary injection molding automatic production line according to an embodiment of the utility model;

[0027] Fig. 9 This is a structural schematic diagram of a first rubber sleeve implantation module of a secondary injection molding automatic production line according to an embodiment of the utility model;

[0028] Fig.10 It is a structural schematic diagram of a mold assembly of a secondary injection molding automatic production line according to an embodiment of the utility model;

[0029] Reference numerals:

[0030] Transmission line 1, jacking device 101;

[0031] Mold implantation module 2, lower mold implantation module 201, workpiece implantation module 202, first rubber sleeve implantation module 203, direct vibration module 2031, circular vibration module 2032, ion fan 2033, first three-axis grasping mechanism 2034, upper mold implantation module 204, second three-axis grasping module 2041, first camera detection component 2042, rotation component 2043, non-return component 2044;

[0032] Preheating module 3;

[0033] Injection molding module 4;

[0034] Handling robot module 5;

[0035] Upper die removal module 6;

[0036] Material taking head module 7, moving module 701, lifting mechanism 702, material taking head clamping claw 703;

[0037] Forced removal module 8, cache platform 801, ejection hole 8011, cache panel 8012, forced removal ejector pin 802;

[0038] Unloading module 9, first rubber sleeve grabbing assembly 901, first transport module 9011, second transport module 9012, lateral movement module 9013, pressing plate 9014, flipping platform assembly 9015, workpiece and second rubber sleeve separation assembly 902, material tray assembly 9021, splitting assembly 9022, material tray lifting assembly 9023, upper tray station 90231, placement station 90232, first unloading mechanism 9031, second unloading mechanism 9032;

[0039] Workpiece 10, first rubber sleeve A, second rubber sleeve B;

[0040] The upper mold 11 and the lower mold 12. DETAILED DESCRIPTION

[0041] Combination Figures 1 to 10 As shown, this embodiment provides a secondary injection molding automatic production line, a transmission assembly line 1, and also includes a mold implantation module 2, a preheating module 3, an injection molding module 4, a handling manipulator module 5, an upper mold removal module 6, a material taking head module 7, a forced stripping module 8 and a material unloading module 9 arranged along the transmission assembly line 1; wherein, the transmission assembly line 1 is suitable for driving the tooling and fixture to flow between the positions of each process module; the mold implantation module 2 includes a lower mold implantation module 201, a workpiece implantation module 202, and an upper mold implantation module 204; the lower mold implantation module 201 is suitable for implanting at least one lower mold 12 into the tooling and fixture; the lower mold 12 is provided with at least one workpiece groove for storing the workpiece 10; the upper mold implantation module 204 is used to install the upper mold 11 to the lower mold 1 2 to form a mold assembly covering the workpiece 10 in the workpiece groove; the preheating module 3 is suitable for heating the workpiece 10 in the mold assembly to a preset temperature; the handling robot module 5 is suitable for grabbing the mold assembly in the tooling fixture into the injection molding module 4 to perform secondary injection molding on the workpiece 10 in the mold assembly, and after the injection molding is completed, the mold assembly is transported back to the tooling fixture on the transmission assembly line 1; the upper mold removal module 6 is suitable for removing the upper mold 11 of the mold assembly after the secondary injection molding to expose the material head; the material removal head module 7 is suitable for removing the material head on the workpiece 10 after the upper mold 11 of the mold assembly is removed; the forced stripping module 8 is used to eject the workpiece 10 from the lower mold 12; the unloading module 9 is suitable for unloading the workpiece 10.

[0042] In this embodiment, the transmission assembly line 1 is an existing structure, which can transfer the jigs and tools between the entire process loop. It should be noted that in the area of ​​the injection molding module 4, when the handling robot module 5 grabs the mold assembly into the injection molding module 4, the jigs and tools are transferred to the other side of the injection molding module 4 through the transmission assembly line 1 for storing the mold assembly after the injection molding is completed. A cleaning device, such as a high-pressure air gun, is provided at the front end of the mold implantation module 2 for cleaning the lower mold 12.

[0043] Combination Figures 1 to 3 as well as Fig. 9As shown, specifically, the mold implantation module 2 includes a lifting device 101 arranged on the transmission assembly line 1 to lift the tooling fixture to a specified position to prevent deviation when implanting the first rubber sleeve A and the workpiece 10, that is, the first lifting device 101 is used to make the tooling fixture separate from the transmission assembly line 1, and the lifting device 101 can be arranged in various processes. The workpiece implantation module 202 includes a first rubber sleeve implantation module 203, a workpiece implantation assembly, and a clamping module, wherein the first rubber sleeve implantation module 203 includes a direct vibration module 2031, a circular vibration module 2032 and a first three-axis grasping mechanism 2034, wherein the circular vibration module 2032 is connected to the direct vibration module 2031 to vibrate a plurality of first rubber sleeves A to be neatly arranged at the end of the direct vibration module 2031, and the first rubber sleeve A is grasped by the first three-axis grasping mechanism 2034. to the workpiece slot of the lower die 12; a second rubber sleeve B is provided on the top surface of the workpiece 10, the workpiece implantation module 202 includes a loading tool, the loading tool is provided with a plurality of clamps arranged in the same manner as the lower die 12 on the jig, each clamp is suitable for clamping the workpiece 10 so as to simultaneously implant the plurality of workpieces 10 and the second rubber sleeve B into the workpiece slot where the first rubber sleeve A is placed; the clamping module includes a clamping block having the same arrangement as the workpiece slot for clamping the workpiece 10 after being placed in the workpiece slot. Here, the assembly formed by the combination of the workpiece 10, the first rubber sleeve A and the second rubber sleeve B is defined as a product assembly, and the assembly composed of the lower die 12, the upper die 11 and the product assembly is defined as a mold assembly. The lower die 12 can be placed in the designated position of the tooling fixture by the lower die 12 grabbing device. In this embodiment, eight lower die 12 receiving slots are provided in the tooling fixture for placing the lower die 12. The lower die 12 grabbing device can be provided with a three-axis motion mechanism and a visual detection device, which is used to automatically grab the lower die 12 to the designated position. The visual detection device can detect whether the lower die 12 is placed and whether the lower die 12 is damaged. When the lower die 12 is detected to be damaged, the damaged lower die 12 can be automatically grabbed out and a new lower die 12 device can be added. Of course, in other embodiments, the lower die 12 can also be implanted by manual placement. In this embodiment, four workpiece slots are provided in each of the lower die 12, so that multiple workpieces 10 can be injection molded at one time. It should be noted that the number of lower dies 12 and the number of workpiece slots in each lower die 12 can be increased or decreased as needed.

[0044] Continue to combine Figure 1 to Figure 2 as well as Fig. 9As shown, the first rubber sleeve implantation module 203 is also provided with an ion fan 2033, which is used to prevent the parts from being tightly attached to each other due to static electricity. When feeding, the first rubber sleeve A is first vibrated by the circular vibration module 2032, and then by the direct vibration module 2031, so that the first rubber sleeve A can be arranged more neatly at the end of the direct vibration module 2031, which is convenient for the first rubber sleeve A grasping mechanism to grasp. Here, the first rubber sleeve A grasping mechanism is provided with a vacuum suction cup, and the vacuum suction cup is provided with a contoured structure similar to the shape of the first rubber sleeve A, so that the correct angle is maintained during grasping, thereby improving the efficiency of the first rubber sleeve A implanting the lower mold 12.

[0045] When the workpiece 10 is placed into the workpiece groove, there is a gap between the first rubber sleeve A, the workpiece 10 and the second rubber sleeve B. If the gap exists, it is easy to cause an impact during the secondary injection molding. Therefore, after the workpiece 10 is placed, each workpiece 10 is clamped by a clamping module to eliminate the gap. The clamping module includes a clamping block with the same arrangement as the workpiece groove for clamping the workpiece 10 placed into the workpiece groove. Here, a guide device can be set between the clamping module and the tooling fixture. When the guide device is aligned, the clamping module is directly pressed downward so that the clamping block can clamp the workpiece 10. After the clamping is completed, the clamping module is removed. In one embodiment, the clamping module can be automatically controlled by setting a moving device to drive the movement of the clamping module. Of course, in other embodiments, the clamping module can also be implemented by manual clamping.

[0046] Combination Figure 3As shown, after the workpiece 10 is implanted, the jig is transmitted to the upper mold implanting module 204 through the transmission assembly line 1, and the upper mold implanting module 204 includes a second three-axis grasping module 2041, a first camera detection component 2042 and a rotating component 2043. The first camera detection component 2042 is suitable for detecting the arrangement position of the lower mold 12 in the jig, and the upper mold 11 is grasped by the second three-axis grasping module 2041 to be installed above the lower mold 12 to form a mold assembly with the workpiece 10 placed thereon; the rotating component 2043 includes a rotating cylinder for driving the jig to rotate 90°, and then transmitted to the next process through the transmission assembly line 1. A lifting cylinder, a tool positioning assembly, and a non-return assembly 2044 are also provided in the rotating assembly 2043. The lifting cylinder is used to drive the lifting of the tooling fixture on the transmission assembly line 1. The tool positioning assembly is used to position the tooling fixture when the tooling fixture is transferred to a specified position for implanting the upper mold 11. The non-return assembly 2044 is used to limit the retreat of the tooling fixture. When the tooling fixture is in place, the lifting cylinder lifts up the tooling fixture, and is limited by the tool positioning assembly to prevent the tooling fixture from continuing to move. The tool positioning assembly is provided with a through groove corresponding to the position of the lower mold 12, and the upper mold 11 is installed on the lower mold 12 through the through groove. When the tooling fixture is in place, the non-return assembly 2044 supports the rear end of the tooling fixture to prevent the tooling fixture from retreating. Here, the non-return assembly 2044 includes an elastic block, and one end of the elastic block is provided with an inclined surface that gradually rises along the transmission direction of the transmission assembly line 1. Through the action of the inclined surface, the inclined surface is pressed down when the tooling fixture passes by, and when the tooling fixture passes by, the inclined surface bounces up to support the rear end of the tooling fixture to prevent the tooling fixture from retreating.

[0047] Combination Figure 4 As shown, the preheating module 3 includes a high-frequency heating device for preheating the mold assembly, and the preheating temperature can be between 60°C and 80°C. Preheating can improve efficiency after injection molding in the injection molding module 4. A tooling tray fixing module is provided at the rear end of the preheating module 3 for fixing the tooling fixture. When the tooling fixture is transferred to the position, it is fixed, and then all the mold assemblies in the tooling fixture are transferred to the injection molding module 4 for secondary injection molding through the handling manipulator module 5. At this time, the empty tooling fixture is moved to the other side of the injection molding module 4 through the conveying line for loading the mold assembly after injection molding (not shown in the figure).

[0048] Combination Figure 1 As shown, the injection molding module 4 is an existing injection molding equipment, which includes two loading stations. The handling robot module 5 adopts an existing multi-axis robot device, which can be displaced on both sides of the injection molding module 4, so as to be used for switching between the injection molding module 4 and the transmission assembly line 1 for loading and unloading to improve work efficiency.

[0049] After the injection molding of the mold assembly is completed and the tooling fixture is transported by the handling robot to the transmission assembly line 1 on the other side, the tooling fixture is transmitted to the upper mold 11 removal module through the transmission assembly line 1. The upper mold 11 removal module is provided with a gripping module and a camera detection component that are the same as the upper mold implantation module 204, and is used to remove the upper mold 11 through the gripping module after the position of the upper mold 11 is detected by the camera, so as to expose the slug produced after the injection molding of the workpiece 10. Specifically, after the injection molding is completed, the tooling fixture is transmitted to the upper mold removal module 6, where the upper mold removal module 6 can be set to a structure similar to the upper mold implantation module 204, by fixing the tooling fixture, driving the visual device and the gripping module to respectively position and grip, so as to remove the upper mold 11 from the lower mold 12, thereby exposing the slug. At this time, since the workpiece 10 still maintains a high temperature, the slug can be easily gripped and removed.

[0050] Combination Figure 5 As shown, the material taking head module 7 includes a moving module 701, a lifting mechanism 702 and a material taking head clamp 703, wherein the material taking head clamp 703 is arranged on the lifting mechanism 702, and the material taking head clamp 703 is provided with a plurality of material heads for removing multiple material heads at the same time, and the lifting mechanism 702 is arranged on the moving module 701 to control the movement of the material taking head clamp 703 through the moving module 701. After the material heads are removed, the tooling fixture is turned by the rotating cylinder to transfer the tooling fixture with the mold assembly to the forced stripping module 8.

[0051] Combination Figure 6As shown, the forced-ejection module 8 includes a cache platform 801 and a forced-ejection ejector pin 802. The cache platform 801 is provided with a positioning assembly to position and fix the tooling fixture; the forced-ejection ejector pin 802 is arranged below the cache platform 801, and is provided with a lifting device to drive the forced-ejection ejector pin 802 to eject the workpiece 10 from the lower mold 12. The cache platform 801 includes an ejection hole 8011 and a cache panel 8012 arranged on the side of the ejection hole 8011. A cooling module is arranged below the cache panel 8012 to cool the product assembly ejected from the mold assembly. This is because the temperature of the product assembly is relatively high during the secondary injection molding process from the injection molding module 4, and it is easy to affect the secondary injection molded workpiece 10 when removing the first rubber sleeve A and the second rubber sleeve B. Therefore, rapid cooling by the cooling module can reduce the impact on the product when the rubber sleeve is removed later. The cooling module can be cooled by the existing water cooling method. The material removal head module 7 is arranged before the forced removal module 8, and the material removal head can be carried out while the workpiece 10 is kept at a high temperature to facilitate the removal of the material head. The buffer platform is arranged above the transmission assembly line 1, and a liftable forced removal ejector pin 802 is arranged below the ejection hole 8011. When the tooling fixture is positioned by the positioning assembly, the mold assembly also moves to a suitable position. At this time, the forced removal ejector pin 802 is driven to rise by the lifting device to eject the product assembly from the lower mold 12, and the product assembly is grabbed to the buffer platform 801 for buffering by the handling assembly.

[0052] The blanking module 9 includes a first rubber sleeve grabbing component 901, a workpiece and second rubber sleeve separating component 902 and a blanking component.

[0053] Combination Figure 7As shown, the first rubber sleeve grabbing assembly 901 includes a conveying assembly, a lateral movement module 9013, a pressing plate 9014, a flipping platform assembly 9015, and a first rubber sleeve grabbing assembly 901; the conveying assembly includes a first conveying module 9011 and a second conveying module 9012, and the first conveying module 9011 and the second conveying module 9012 are arranged on the same moving screw, wherein the first conveying module 9011 is suitable for conveying the product assembly from the buffer platform 801 to the material tray on the flipping platform assembly 9015, and the second conveying module 9012 is used to convey the product assembly after taking out the first rubber sleeve A from the flipping platform assembly 9015 to the workpiece and second rubber sleeve separation assembly 902. The flipping platform assembly 9015 is used to drive the material tray and the product assembly placed on the material tray to flip, so that the first rubber sleeve A is exposed on one side of the first rubber sleeve grabbing assembly 901, and then the first rubber sleeve A is grasped, and the flipping platform assembly 9015 is driven by a rotary motor. The transverse moving module 9013 is arranged on the side of the material tray and is connected to a lifting mechanism 702; the pressing plate 9014 is arranged above the transverse moving module 9013, and is used to move the pressing plate 9014 to the top of the material tray after the product component is placed on the material tray, and control the lifting mechanism 702 to press the pressing plate 9014 against the product component on the material tray; the first rubber sleeve grabbing component 901 includes a vacuum suction cup component and a lifting module, and the vacuum suction cup component and the first rubber sleeve A have a conformal adaptation structure, and are used to grab the first rubber sleeve A from the product component and grab it into the waste tray when moving to the first rubber sleeve A. Preferably, a spring is arranged on the vacuum suction cup component so that the vacuum suction cup component has up and down elasticity to prevent excessive pressure on the product component from damaging the product component.

[0054] Combination Figure 8 As shown, the workpiece and second rubber sleeve separation component 902 includes a material tray component 9021, a split component 9022, and a material tray lifting component 9023, and the material unloading component includes a first unloading mechanism 9031 and a second unloading mechanism 9032; wherein, the split component 9022 includes a material tray for placing the product component after the first rubber sleeve A is removed, a movable material pressing plate is arranged above the material tray, and the material pressing plate is arranged on the moving mechanism and the lifting mechanism 702, and is used to move to the top of the material tray to press the product component on the material tray, and an ejector device is arranged below the material tray, and the ejector device is connected to an ejection module to drive the ejector device to rise, eject the workpiece 10 out of the second rubber sleeve B, so that the workpiece 10 is separated from the second rubber sleeve B. Preferably, a guide mechanism is arranged between the ejector device and the material tray to ensure that the ejector device can accurately eject the workpiece 10 when ejecting.

[0055] The first unloading mechanism 9031 includes a three-axis motion module and a clamping mechanism. The clamping mechanism, driven by the three-axis motion module, grabs the ejected workpiece 10 and places it on the unloading tray. After the workpiece 10 is clamped, the pressing plate is controlled to move away, and the second unloading mechanism 9032 grabs the second rubber sleeve B to another waste collection tank for recycling. Here, the first unloading mechanism 9031 can also be provided with a visual device to cooperate with the three-axis motion module to place the workpiece 10 on the unloading tray at a preset position.

[0056] The tray lifting module includes an upper tray station 90231 and a placing station 90232. The upper tray station 90231 is provided with a tray lifting module for lifting the empty unloading tray to the height of the material swing; the material taking tray assembly 9021 is arranged above the upper tray station 90231 and the plate swinging station, and is used to grab the unloading tray from the upper tray station 90231 to the plate swinging station for plate swinging when the unloading tray is raised to the plate swinging height at the upper tray station 90231; the plate swinging station is also provided with a tray lifting module for lowering the unloading tray to a certain height after the plate swinging is completed for easy material picking. In one embodiment, the unloading tray can be picked up and placed by manual unloading and manual unloading. Through this module, the user can place and take the tray at a suitable height. In a preferred embodiment, a stretching assembly is provided on the tray lifting module, and the stretching assembly can be displaced a certain distance in succession, so that when placing and taking the tray, the stretching assembly can be pulled out of the safety door to place and take the tray, thereby improving operational safety.

[0057] The above-mentioned moving module 701, lifting mechanism 702, lifting device, etc. can all adopt existing mechanisms, such as existing XY axis motion mechanism, lifting cylinder, screw device, etc., which are not listed here. A control system is also provided in this production line for setting movement parameters, height parameters, time parameters, etc.

[0058] Through the production line of this embodiment, by setting the first rubber sleeve A and the second rubber sleeve B to position the workpiece 10, the requirements for the rubber ring of the secondary injection molding under the actual use state of the workpiece 10 can be simulated, and the mold system of the secondary injection molding rubber ring is formed by the cooperation of the first rubber sleeve A and the second rubber sleeve B. The mold assembly formed by the upper mold 11 and the lower mold 12 can fix the workpiece 10, the first rubber sleeve A and the second rubber sleeve B for easy transportation. It should be noted that the size of the workpiece 10 here is relatively small, and secondary injection molding is performed on the workpiece 10 to form a rubber ring. Secondary injection molding under smaller parts is likely to cause an impact during the movement and transportation process. Therefore, in this embodiment, the rubber ring mold is formed by the first rubber sleeve A and the second rubber sleeve B, and the mold assembly is formed by the upper mold 11 and the lower mold 12 to facilitate the transportation and transfer of the workpiece 10.

[0059] Through the scheme of this embodiment, the degree of automation of secondary injection molding of small parts is improved, the production efficiency of secondary injection molding is improved, and no manual operation is required before and after the secondary injection molding, which can prevent workers from being scalded and improve production safety.

[0060] The automatic secondary injection molding production line described in the utility model comprises the following steps when working:

[0061] S1, placing the lower die 12 into the tooling fixture;

[0062] S2, implanting the first rubber sleeve A into the lower mold 12;

[0063] S2, installing the second rubber sleeve B on the workpiece 10, and placing a plurality of workpieces 10 equipped with the second rubber sleeve B into the lower mold 12 through a loading tool, and pressing them through a pressing module to form a product assembly;

[0064] S3, installing the upper mold 11 on the lower mold 12 to form a mold assembly, and leaving an injection port on the upper mold 11;

[0065] S4, preheating the mold assembly at a temperature of 60-80°C;

[0066] S5, moving the entire mold assembly from the jig to the injection molding module 4 for secondary injection molding, and after the injection molding is completed, moving the mold assembly back to the jig on the transmission assembly line 1;

[0067] S6, dismantle the upper mold 11 to expose the material head, and remove the material head;

[0068] S7, eject the product component from the lower mold 12, transfer the tooling fixture with the lower mold 12 to the placement position of the lower mold 12, and reuse it after cleaning; at the same time, move the product component to the first rubber sleeve grasping component 901 to remove the first rubber sleeve A from the product component; then move the product component with the first rubber sleeve A removed to the workpiece and second rubber sleeve separation component 902 to separate the workpiece 10 from the second rubber sleeve B, and then respectively unload the workpiece 10 and the second rubber sleeve B after the secondary injection molding to the designated positions.

[0069] It should be understood that the above are only preferred implementations of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions under the concept of the present utility model belong to the protection scope of the present utility model.

[0070] The above description of the drawings used in the implementation manner only shows certain embodiments of the utility model and should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

Claims

1. A secondary injection molding automatic production line, including a transmission line, characterized in that: It also includes a mold implantation module, an injection molding module, a handling robot module, an upper mold removal module, a material taking head module, a forced stripping module and a material unloading module arranged along the transmission line; wherein, The transmission assembly line is suitable for driving the tooling and fixture to flow between the positions of various process modules; The mold implantation module comprises a lower mold implantation module, a workpiece implantation module, and an upper mold implantation module; the lower mold implantation module is suitable for implanting at least one lower mold into a tooling fixture; the lower mold is provided with at least one workpiece slot for storing the workpiece; the upper mold implantation module is used to install the upper mold to the lower mold to form a mold assembly; The handling robot module is suitable for grabbing the mold assembly in the tooling fixture into the injection molding module to perform secondary injection molding on the workpiece in the mold assembly, and after the injection molding is completed, the mold assembly is transported back to the tooling fixture on the transmission assembly line; The upper mold removal module is suitable for removing the upper mold of the mold assembly after secondary injection molding to expose the sprue; The material removal module is suitable for removing the material head on the workpiece after the upper mold of the mold assembly is removed; The forced ejection module is used to eject the workpiece from the lower die; The unloading module is suitable for unloading workpieces.

2. The automatic secondary injection molding production line according to claim 1, characterized in that: The workpiece implantation module includes a first rubber sleeve implantation module, a workpiece implantation assembly, and a clamping module, wherein the first rubber sleeve implantation module includes a direct vibration module, a circular vibration module, and a first three-axis grasping mechanism, the circular vibration module is connected to the direct vibration module to vibrate a plurality of first rubber sleeves to arrange them neatly at the end of the direct vibration module, and grasp the first rubber sleeves into the workpiece slot of the lower mold through the first three-axis grasping mechanism; a second rubber sleeve is installed on the top surface of the workpiece, the workpiece implantation module includes a loading tool, and the loading tool is provided with a plurality of clamps arranged in the same manner as the lower mold on the tooling fixture to synchronously implant a plurality of workpieces and the second rubber sleeve into the workpiece slot where the first rubber sleeve is placed; the clamping module includes a clamping block having the same arrangement as the workpiece slot to clamp the workpiece, the first rubber sleeve and the second rubber sleeve in the workpiece slot to form a product assembly.

3. The automatic secondary injection molding production line according to claim 2, characterized in that: The upper mold implantation module includes a second three-axis grasping module, a first camera detection component and a rotating component. The first camera detection component is suitable for detecting the position of the lower mold in the tooling fixture. The second three-axis grasping module is used to grasp the upper mold and install it on the lower mold to form a mold assembly with a product component placed therein.

4. The automatic secondary injection molding production line according to claim 3 is characterized in that: The upper mold implantation module also includes a rotating component, which includes a rotating cylinder to drive the tooling fixture to rotate 90°; the rotating component is also provided with a lifting cylinder, a tooling positioning component, and a check assembly. The lifting cylinder is used to drive the tooling fixture on the transmission assembly line to lift and lower, the tooling positioning component is used to position the tooling fixture when the tooling fixture flows to a specified position for upper mold implantation, and the check assembly is used to limit the retreat of the tooling fixture.

5. The automatic secondary injection molding production line according to claim 1, characterized in that: The material picking head module includes a moving module, a lifting mechanism and a material picking head clamp; a plurality of the material picking head clamps are arranged on the lifting mechanism to synchronously remove the material heads on multiple workpieces, and the lifting mechanism is arranged on the moving module to control the movement of the material picking head clamps through the moving module.

6. The automatic secondary injection molding production line according to claim 2, characterized in that: The forced-ejection module includes a cache platform and a forced-ejection ejector pin. A positioning component is provided on the cache platform to position and fix the tooling fixture; the forced-ejection ejector pin is arranged below the cache platform, and a lifting device is provided to drive the forced-ejection ejector pin to eject the product component from the lower mold.

7. The automatic secondary injection molding production line according to claim 6, characterized in that: The cache platform includes an ejection hole arranged above the transmission assembly line to facilitate ejection of the product component by a forced ejection pin, and also includes a cache panel arranged on the side of the ejection hole. A cooling module is arranged under the cache panel for cooling the product component.

8. The automatic secondary injection molding production line according to claim 7, characterized in that: The blanking module includes a first rubber sleeve grabbing component, a workpiece and second rubber sleeve separation component, and a blanking component; Wherein, the first rubber sleeve grabbing assembly includes a conveying assembly, a pressing plate, a flipping platform assembly, and a first rubber sleeve grabbing assembly, the conveying assembly includes a first conveying module and a second conveying module, the first conveying module is suitable for conveying the product assembly from the buffer platform to the material tray on the flipping platform assembly, the second conveying module is used to convey the product assembly after taking out the first rubber sleeve from the flipping platform assembly to the workpiece and the second rubber sleeve separation assembly, the flipping platform assembly is used to drive the material tray and the product assembly placed on the material tray to flip, so that the first rubber sleeve is exposed on one side of the first rubber sleeve grabbing assembly, the pressing plate is suitable for pressing on the material tray to press the product assembly, thereby facilitating the separation of the first rubber sleeve from the product assembly; The workpiece and second rubber sleeve separation assembly includes a splitting assembly, and the splitting assembly includes an ejector device to eject the workpiece out of the second rubber sleeve, so that the workpiece and the second rubber sleeve are separated; The unloading assembly includes a first unloading mechanism and a second unloading mechanism, and the first unloading mechanism and the second unloading mechanism are suitable for respectively transporting the workpiece and the second rubber sleeve to the unloading position.

9. The automatic secondary injection molding production line according to claim 8, characterized in that: The unloading module also includes a material tray assembly and a material tray lifting assembly. The material tray lifting module includes an upper tray station and a placing station. The upper tray station is provided with a material tray lifting module for lifting the empty unloading material tray to the height of the swinging material; the material tray assembly is arranged above the upper tray station and the swinging tray station, and is used to grab the unloading material tray from the upper tray station to the swinging tray station when the unloading material tray is lifted to the swinging tray height at the upper tray station; the swinging tray station is provided with another material tray lifting module, which is used to drive the unloading material tray to descend to a certain height after the swinging tray is completed to facilitate the unloading of the workpiece.

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