Servo-driven equal-proportion glue feeding device

Abstract

The invention discloses a servo-driven equal-proportion glue feeding device. The device comprises a mounting seat; the mixing mechanism is used for mixing the glue A, the glue B and the toner; the first glue pumping mechanism is used for conveying the glue A to the mixing mechanism; the second glue pumping mechanism is used for conveying the glue B to the mixing mechanism; the first servo driving mechanism is used for driving the first glue pumping mechanism; the second servo driving mechanism is used for driving the second glue pumping mechanism; the first color agent pumping mechanism is used for conveying a first color agent to the mixing mechanism; the second toner pumping mechanism is used for conveying a second toner to the mixing mechanism; and a control cabinet. Through the application of the equal-proportion glue feeding device, the equal-proportion glue feeding device suitable for mixing of the two-component liquid silica gel and the color agent with different colors is provided, control over the glue flow is ensured, and the mixing preparation precision of the glue and the color agent is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding production, in particular to a servo-driven equal-proportional glue feeding device. Background Art

[0002] At present, for parts and components in the medical, food, electronics and automotive industries, it is more common to use mold injection molding for batch production and processing. Among them, LSR liquid silicone injection molding technology has also been increasingly widely used. Generally, different glue pumps are used to transport the corresponding glue to the mixer and mixing pipe, and after the glue and the corresponding colorant are evenly mixed, they are injected into the mold together, and then heated and cured to complete the molding operation.

[0003] However, the existing liquid silicone delivery system often has a poor degree of integration. When used in conjunction with an injection molding machine, its intelligent automation level and operating efficiency are low, and the operation complexity is high. It is also inconvenient to install and maintain, resulting in a long downtime, which reduces the production efficiency of the product. In addition, the existing liquid silicone delivery system is often difficult to meet the needs of two-color injection molding, especially its effect on the uniform mixing of glue and colorant needs to be further improved. Summary of the invention

[0004] In view of this, in order to solve the above problems, the object of the present invention is to provide a servo-driven proportional glue feeding device, comprising:

[0005] Mounting seat;

[0006] A mixing mechanism, the mixing mechanism is used to mix glue A, glue B and coloring agent;

[0007] A first glue pumping mechanism, the first glue pumping mechanism is fixedly arranged on the mounting seat, and the first glue pumping mechanism is used to transport glue A to the mixing mechanism;

[0008] A second glue pumping mechanism, the second glue pumping mechanism is fixedly arranged on the mounting seat, and the second glue pumping mechanism is used to transport glue B to the mixing mechanism;

[0009] A first servo drive mechanism, the first servo drive mechanism is fixedly disposed on the mounting seat, and the first servo drive mechanism is used to drive the first glue pumping mechanism to work;

[0010] A second servo drive mechanism, the second servo drive mechanism is fixedly disposed on the mounting seat, and the second servo drive mechanism is used to drive the second glue pumping mechanism to work;

[0011] A first colorant pumping mechanism, the first colorant pumping mechanism is fixedly disposed on the mounting seat, and the first colorant pumping mechanism is used to transport the first colorant to the mixing mechanism;

[0012] A second colorant pumping mechanism, the second colorant pumping mechanism is fixedly disposed on the mounting seat, the second colorant pumping mechanism is used to deliver a second colorant to the mixing mechanism, the second colorant and the first colorant being arranged in different colors;

[0013] A control cabinet is fixedly disposed on the mounting base, and is used at least to control the operation of the first servo drive mechanism, the second servo drive mechanism, the first colorant pumping mechanism, and the second colorant pumping mechanism.

[0014] In another preferred embodiment, the first servo drive mechanism and the second servo drive mechanism both include: a servo electric cylinder, a transfer rod, a base and a plurality of pull rods, the servo electric cylinder is fixedly mounted on the base, the output end of the servo electric cylinder passes through the base and is connected to the first glue pumping mechanism or the second glue pumping mechanism, one end of each of the pull rods is fixedly connected to the base, and the other end of each of the pull rods is fixedly connected to the first glue pumping mechanism or the second glue pumping mechanism.

[0015] In another preferred embodiment, the first servo drive mechanism and the second servo drive mechanism further include: two follower cylinders and a follower plate, the two follower cylinders are both arranged on the mounting seat, the output ends of the two follower cylinders are both arranged upward and connected to the follower plate, and the base is fixedly mounted on the follower plate.

[0016] In another preferred embodiment, the first glue pumping mechanism and the second glue pumping mechanism both include: a plunger pump, a plunger rod, a pressure plate, an empty barrel detection device and a barrel unloading air supply interface, the plunger rod is arranged at the upper end of the plunger pump, the pressure plate is arranged at the lower end of the plunger pump, the empty barrel detection device and the barrel unloading air supply interface are both arranged on the pressure plate, the upper end of the plunger rod is connected to the transfer rod, and the plunger pump has a discharge port.

[0017] In another preferred embodiment, the first glue pumping mechanism and the second glue pumping mechanism also include: a reflux interface, a striker valve and a reflux pipe, the reflux interface is connected to the output end of the plunger pump, the striker valve is connected between the reflux interface and one end of the reflux pipe, and the other end of the reflux pipe is connected to the pressing plate.

[0018] In another preferred embodiment, the first colorant pumping mechanism and the second colorant pumping mechanism both include: a bracket, a colorant barrel, a high-pressure pumping unit, a driving cylinder and an outlet assembly, the lower end of the bracket is connected to the mounting seat, the upper end of the bracket is connected to the high-pressure pumping unit, the upper end of the high-pressure pumping unit is connected to the colorant barrel, the lower end of the high-pressure pumping unit is connected to the driving cylinder, and the outlet assembly is provided on the high-pressure pumping unit.

[0019] In another preferred embodiment, it also includes: a metering and pressure monitoring device, which has at least two pressure sensors and four flow meters, the two pressure sensors are used to monitor the output pressures of the A glue and the B glue respectively, and the four flow meters are used to monitor the output flow rates of the A glue, the B glue, the first colorant and the second colorant respectively.

[0020] In another preferred embodiment, the control cabinet includes: an electrical control box, an electrical isolation plate, a manual operating component and a pneumatic control box arranged in sequence from top to bottom, and a human-machine interaction screen is arranged on the outer wall of the electrical control box.

[0021] In another preferred embodiment, the first glue pumping mechanism, the second glue pumping mechanism, the first servo drive mechanism, the second servo drive mechanism, the first colorant pumping mechanism and the second colorant pumping mechanism are all arranged on one side of the control cabinet, the first colorant pumping mechanism, the first glue pumping mechanism and the control cabinet are arranged in sequence, and the second colorant pumping mechanism, the second glue pumping mechanism and the control cabinet are arranged in sequence.

[0022] In another preferred embodiment, the mounting base includes: a base plate and a plurality of casters, wherein the plurality of casters are all arranged on the lower surface of the base plate, and the first glue pumping mechanism, the second glue pumping mechanism, the first servo drive mechanism, the second servo drive mechanism, the first colorant pumping mechanism and the second colorant pumping mechanism are all arranged on the upper surface of the base plate.

[0023] Due to the adoption of the above technical solution, the present invention has the following positive effects compared with the prior art:

[0024] Through the application of the present invention, a proportional glue feeding device suitable for mixing two-component liquid silicone and heterochromatic colorants is provided. The servo drive ensures the precise control of the glue flow, especially the mixing accuracy of the glue and the colorant, with high operating stability, thus ensuring the quality of the injection molded products. The present invention adopts a modular design, which is convenient for installation and maintenance, and is conducive to shortening the downtime for maintenance, and further facilitates the operation and remote supervision of the operator, thereby greatly improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an overall schematic diagram of a servo-driven proportional glue feeding device of the present invention;

[0026] Figure 2 A schematic diagram of a mixing mechanism of a servo-driven equal-proportional glue feeding device of the present invention;

[0027] Figure 3 A schematic diagram of a control cabinet of a servo-driven proportional glue feeding device of the present invention;

[0028] Figure 4 It is a first partial schematic diagram of a servo-driven proportional glue feeding device of the present invention;

[0029] Figure 5 This is a second partial schematic diagram of a servo-driven proportional glue feeding device of the present invention.

[0030] In the attached figure:

[0031] 1. Mounting seat; 2. Mixing mechanism; 3. First glue pumping mechanism; 4. Second glue pumping mechanism; 5. First servo drive mechanism; 6. Second servo drive mechanism; 7. First colorant pumping mechanism; 8. Second colorant pumping mechanism; 9. Control cabinet; 10. Servo electric cylinder; 11. Adapter rod; 12. Base; 13. Pull rod; 14. Follow-up cylinder; 15. Follow-up plate; 16. Plunger pump; 17. Plunger rod; 18. Pressing plate; 19. Empty barrel detection device; 20. Unloading barrel air supply interface; 21. Reflux interface; 22. Needle valve; 23. Reflux pipe; 24. Bracket; 25. Colorant barrel; 26. High-pressure pumping Unit; 27. Drive cylinder; 28. Outlet assembly; 29. ​​Metering and pressure monitoring device; 30. Pressure sensor; 31. Flow meter; 32. IO expansion module; 33. Static mixing device; 34. Pressure reducing valve; 35. First glue feed interface; 36. Second glue feed interface; 37. Colorant interface; 38. Glue mixing switch valve; 39. Colorant metering valve; 40. Opening sensor; 41. IO digital interface; 42. Drag chain assembly; 43. Electrical control box; 44. Electrical isolation board; 45. Manual operation component; 46. Pneumatic control box; 47. Sound and light alarm device; 48. Bottom plate; 49. Casters. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it is necessary to understand that the orientation or position relationship indicated by the terms such as "upper", "lower", "left", "right", "inside", "outside", "front", "back", "lateral" and "vertical" is based on the orientation or position relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or original referred to must have a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] It should be specially explained that the “horizontal” and “vertical” in the present invention are used to illustrate the approximate positional relationship, rather than a strict “horizontal plane” or “vertical plane”.

[0035] like Figures 1 to 5 As shown, a servo-driven proportional glue feeding device of a preferred embodiment is shown, comprising: a mounting seat 1; a mixing mechanism 2, the mixing mechanism 2 is used to mix glue A, glue B and colorant; a first glue pumping mechanism 3, the first glue pumping mechanism 3 is fixedly arranged on the mounting seat 1, and the first glue pumping mechanism 3 is used to convey glue A to the mixing mechanism 2; a second glue pumping mechanism 4, the second glue pumping mechanism 4 is fixedly arranged on the mounting seat 1, and the second glue pumping mechanism 4 is used to convey glue B to the mixing mechanism 2; a first servo drive mechanism 5, the first servo drive mechanism 5 is fixedly arranged on the mounting seat 1, and the first servo drive mechanism 5 is used to drive the first glue pumping mechanism 3 to work; a second servo drive mechanism 6, the second servo drive mechanism 6 is fixedly arranged on the mounting seat 1, and the first servo drive mechanism 5 is used to drive the first glue pumping mechanism 3 to work; Fixedly arranged on the mounting seat 1, the second servo drive mechanism 6 is used to drive the second glue pumping mechanism 4 to work; the first colorant pumping mechanism 7, the first colorant pumping mechanism 7 is fixedly arranged on the mounting seat 1, and the first colorant pumping mechanism 7 is used to convey the first colorant to the mixing mechanism 2; the second colorant pumping mechanism 8, the second colorant pumping mechanism 8 is fixedly arranged on the mounting seat 1, and the second colorant pumping mechanism 8 is used to convey the second colorant to the mixing mechanism 2, and the second colorant and the first colorant are arranged in different colors; the control cabinet 9, the control cabinet 9 is fixedly arranged on the mounting seat 1, and the control cabinet 9 is at least used to control the work of the first servo drive mechanism 5, the second servo drive mechanism 6, the first colorant pumping mechanism 7 and the second colorant pumping mechanism 8. Furthermore, the control cabinet 9 controls the synchronous operation of the first servo drive mechanism 5 and the second servo drive mechanism 6 to ensure that the glue flow rates of glue A and glue B pumped by the first glue pumping mechanism 3 and the second glue pumping mechanism 4 are respectively within the standard proportional range, and under the control of the control cabinet 9, the first colorant pumping mechanism 7 and the second colorant pumping mechanism 8 are selectively made to work intermittently according to a predetermined colorant mixing ratio, so that glue A, glue B, the first colorant and the second colorant can be stably output according to the set requirements and be evenly mixed at the mixing mechanism 2.

[0036] Furthermore, as a preferred embodiment, it also includes: a universal pipeline assembly, which is used to connect the above-mentioned first glue pumping mechanism 3, the second glue pumping mechanism 4, the first servo drive mechanism 5, the second servo drive mechanism 6, the first colorant pumping mechanism 7, the second colorant pumping mechanism 8 and the mixing mechanism 2.

[0037] Furthermore, as a preferred embodiment, when the present invention is used for ordinary industrial-grade silicone products, conventional filler-type sealing components made of ordinary metal materials are provided at each connection position of the universal pipe assembly; when the present invention is used for sanitary-grade silicone products such as medical, beauty, and baby products, clean sealing components such as high-strength stainless steel and PTFE are used to meet the technical requirements for the service life and sanitary level of the servo-driven proportional glue feeding device.

[0038] Furthermore, as a preferred embodiment, the control cabinet 9, the first glue pumping mechanism 3, the second glue pumping mechanism 4, the first servo drive mechanism 5, the second servo drive mechanism 6, the first colorant pumping mechanism 7 and the second colorant pumping mechanism 8 are each modularly designed to facilitate detachable installation on the mounting base 1, which is conducive to independent assembly and maintenance of each module.

[0039] Further, as a preferred embodiment, the first servo drive mechanism 5 and the second servo drive mechanism 6 each include: a servo electric cylinder 10, a transfer rod 11, a base 12 and a plurality of pull rods 13, the servo electric cylinder 10 is fixedly mounted on the base 12, the output end of the servo electric cylinder 10 passes through the base 12 and is connected to the first glue pumping mechanism 3 or the second glue pumping mechanism 4, one end of each pull rod 13 is fixedly connected to the base 12, and the other end of each pull rod 13 is fixedly connected to the first glue pumping mechanism 3 or the second glue pumping mechanism 4.

[0040] Further, as a preferred embodiment, the first servo drive mechanism 5 and the second servo drive mechanism 6 further include: two follower cylinders 14 and a follower plate 15, the two follower cylinders 14 are both arranged on the mounting seat 1, the output ends of the two follower cylinders 14 are both arranged upward and connected to the follower plate 15, and the base 12 is fixedly mounted on the follower plate 15. Further, other parts of the corresponding servo drive mechanism and the corresponding glue pumping mechanism are supported and installed by the follower plate 15.

[0041] Further, as a preferred embodiment, the first glue pumping mechanism 3 and the second glue pumping mechanism 4 both include: a plunger pump 16, a plunger rod 17, a pressure plate 18, an empty barrel detection device 19 and a barrel unloading air supply interface 20, the plunger rod 17 is arranged at the upper end of the plunger pump 16, the pressure plate 18 is arranged at the lower end of the plunger pump 16, the empty barrel detection device 19 and the barrel unloading air supply interface 20 are both arranged on the pressure plate 18, the upper end of the plunger rod 17 is connected to the adapter rod 11, and the plunger pump 16 has a discharge port. Furthermore, a glue barrel filled with glue A or glue B is installed at the pressing plate 18. When the glue pumping mechanism is working, the glue enters from the bottom of the pressing plate 18, and the plunger rod 17 reciprocates under the drive of the servo electric cylinder 10, and the glue is continuously discharged from the discharge port under the coordinated work of the valve assembly in the plunger pump 16; during normal operation, the output end of the follower cylinder 14 runs downward, so that the pressing plate 18 of the glue pumping mechanism is in a close contact with the glue in the glue barrel, providing sufficient glue feeding pressure for the operation of the plunger pump 16, and preventing cavitation in the liquid caused by insufficient glue feeding; when the glue barrel is in an empty state, the follower cylinder 14 runs upward to separate the empty barrel and the pressing plate 18, and complete the barrel unloading operation.

[0042] Further, as a preferred embodiment, the empty barrel detection device 19 has at least one probe that can be inserted into the rubber barrel. Further, the probe preferably extends 4 to 6 mm from the lower surface of the pressing plate 18, so that when the glue in the rubber barrel is used up, the lower surface of the pressing plate 18 contacts the bottom of the rubber barrel, the probe retracts to trigger the corresponding switch and send a corresponding electrical signal to the control cabinet 9 to trigger the stop and barrel change signal

[0043] Furthermore, as a preferred embodiment, the barrel unloading air supply interface 20 is used to connect with the corresponding compressed air supply system, so that when the empty barrel is disassembled, the barrel unloading air supply interface 20 is manually operated to continuously fill the rubber barrel with compressed air of appropriate pressure, thereby separating the rubber barrel from the pressing plate 18.

[0044] Further, as a preferred embodiment, the first glue pumping mechanism 3 and the second glue pumping mechanism 4 further include: a reflux interface 21, a striker valve 22 and a reflux pipe 23, the reflux interface 21 is connected to the output end of the plunger pump 16, the striker valve 22 is connected between the reflux interface 21 and one end of the reflux pipe 23, and the other end of the reflux pipe 23 is connected to the pressing plate 18. Further, the striker valve 22 is an open valve, when it is detected that the pressure value of the pipeline exceeds the specified value or the system is disconnected from the power supply, the striker valve 22 is in an open state, and the high-pressure glue in the pipeline is depressurized and flows back to the reflux pipe 23, and returns to the glue barrel to complete the pressure release process; in addition, based on process requirements, it is sometimes necessary to adopt an internal circulation mode, that is, conditionally make the striker valve 22 in an open or closed state and make the glue circulate in a corresponding internal circulation state.

[0045] Furthermore, as a preferred embodiment, the striker valve 22 is a pneumatic valve, and the upper end of the striker valve 22 is connected to a valve-controlled air pipe for providing corresponding compressed air.

[0046] Further, as a preferred embodiment, the first colorant pumping mechanism 7 and the second colorant pumping mechanism 8 both include: a bracket 24, a colorant barrel 25, a high-pressure pumping unit 26, a driving cylinder 27 and an outlet assembly 28, the lower end of the bracket 24 is connected to the mounting seat 1, the upper end of the bracket 24 is connected to the high-pressure pumping unit 26, the upper end of the high-pressure pumping unit 26 is connected to the colorant barrel 25, the lower end of the high-pressure pumping unit 26 is connected to the driving cylinder 27, and the high-pressure pumping unit 26 is provided with an outlet assembly 28.

[0047] Further, as a preferred embodiment, the outlet assembly 28 includes: an outlet pipeline and a pressure monitoring unit arranged on the outlet pipeline.

[0048] Furthermore, as a preferred embodiment, the driving cylinder 27 is provided with a pressure regulating device.

[0049] Furthermore, as a preferred embodiment, the bracket 24 is arranged in an inverted L-shaped structure.

[0050] Furthermore, as a preferred embodiment, it also includes: a metering and pressure monitoring device 29, the metering and pressure monitoring device 29 has at least two pressure sensors 30 and four flow meters 31, the two pressure sensors 30 are used to monitor the output pressures of glue A and glue B respectively, and the four flow meters 31 are used to monitor the output flow rates of glue A, glue B, the first colorant and the second colorant respectively. Furthermore, the pressure sensor 30 and the flow meter 31 can preferably be connected to the pipelines in the output direction of the corresponding colorant pumping mechanism and the glue pumping mechanism; wherein, the pressure sensor 30 is used to detect the pressure in the pipelines of glue A and glue B, and to feed back to the control cabinet 9 in real time. When a low pressure value or a high pressure value exceeding the specified value appears in the pipeline, the control cabinet 9 gives a corresponding alarm and shutdown action instruction; the flow meter 31 is used to detect the flow of glue A, glue B, the first colorant and the second colorant consumed by the system in real time, and according to the production rhythm, the control cabinet 9 generates the corresponding usage information for production statistics and data tracing; at the same time, corresponding calculations and analyses are performed based on the flow data fed back. When the flow data of glue A, glue B, the first colorant and the second colorant exceeds the specified value, corresponding alarms and shutdown action instructions are given.

[0051] Furthermore, as a preferred embodiment, it also includes: an IO expansion module 32, which is arranged in the metering and pressure monitoring device 29 and is used for communication connection with the control cabinet 9 to transmit corresponding flow and pressure information.

[0052] Further, as a preferred embodiment, the mixing mechanism 2 includes: a static mixing device 33, a pressure reducing valve 34, a first glue feed interface 35, a second glue feed interface 36, two colorant interfaces 37, a glue mixing switch valve 38, a colorant metering valve 39, an opening sensor 40 and an IO digital interface 41. The first glue feed interface 35 and the second glue feed interface 36 are connected to the input end of the static mixing device 33 through the glue mixing switch valve 38, the two colorant interface 37 is connected to the input end of the static mixing device 33 through the colorant metering valve 39, the IO digital interface 41 is installed on the outside of the static mixing device 33, and the opening sensor 40 is installed on the colorant metering valve 39.

[0053] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention.

[0054] The present invention also has the following implementation modes based on the above:

[0055] In a further embodiment of the present invention, it further comprises: a drag chain assembly 42, one end of the drag chain assembly 42 is mounted on the control cabinet 9, the other end of the drag chain assembly 42 is mounted on the follower plate 15, and the drag chain assembly 42 at least accommodates an air pipe for connecting the follower cylinder 14 and a cable for connecting the servo electric cylinder 10. Furthermore, the arrangement of the drag chain assembly 42 protects the air pipe and the cable from being twisted and worn by external forces.

[0056] In a further embodiment of the present invention, the control cabinet 9 includes: an electrical control box 43, an electrical isolation plate 44, a manual operating component 45 and a pneumatic control box 46 arranged in sequence from top to bottom, and a human-machine interaction screen is arranged on the outer wall of the electrical control box 43. Furthermore, the electrical isolation plate 44 is arranged to achieve electrical isolation between the electrical control cabinet 9 and the pneumatic control box 46, thereby avoiding the risk of electric shock of high-voltage components in the electrical control cabinet 9 and avoiding the exhaust of components such as the solenoid valve in the pneumatic control cabinet 9 from polluting the precision electronic components in the electrical control cabinet 9.

[0057] In a further embodiment of the present invention, a servo amplifier for controlling the first servo drive mechanism 5 and the second servo drive mechanism 6 is disposed in the electrical control box 43 .

[0058] In a further embodiment of the present invention, the manual operation component 45 is preferably a box provided with a plurality of pressure adjustment knobs.

[0059] In a further embodiment of the present invention, the control cabinet 9 further includes: an audible and visual alarm device 47 , which is installed on the top of the electrical control box 43 .

[0060] In a further embodiment of the present invention, the first glue pumping mechanism 3, the second glue pumping mechanism 4, the first servo drive mechanism 5, the second servo drive mechanism 6, the first colorant pumping mechanism 7 and the second colorant pumping mechanism 8 are all arranged on one side of the control cabinet 9, the first colorant pumping mechanism 7, the first glue pumping mechanism 3 and the control cabinet 9 are arranged in sequence, and the second colorant pumping mechanism 8, the second glue pumping mechanism 4 and the control cabinet 9 are arranged in sequence.

[0061] In a further embodiment of the present invention, the mounting base 1 includes: a base plate 48 and a plurality of casters 49, the plurality of casters 49 are all arranged on the lower surface of the base plate 48, and the first glue pumping mechanism 3, the second glue pumping mechanism 4, the first servo drive mechanism 5, the second servo drive mechanism 6, the first colorant pumping mechanism 7 and the second colorant pumping mechanism 8 are all arranged on the upper surface of the base plate 48.

[0062] In a further embodiment of the present invention, when the servo-driven proportional glue feeding device is used on an injection molding machine, preferably, the mixing mechanism 2 is installed on the injection molding machine, and other components of the servo-driven proportional glue feeding device are placed on the outside of the injection molding machine with the mounting seat 1.

[0063] In a further embodiment of the present invention, a control panel is provided on the injection molding machine. The control panel realizes one-stop remote control through the reserved communication interface on the injection molding machine and the servo-driven proportional glue feeding device under the connection of a high-speed industrial communication cable, that is, the operation interface of the servo-driven proportional glue feeding device is delivered to the injection molding machine, so that the control panel of the injection molding machine can be used to simultaneously control the injection molding machine and the servo-driven proportional glue feeding device.

[0064] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A servo-driven proportional glue feeding device, characterized in that: include: Mounting seat; A mixing mechanism, the mixing mechanism is used to mix glue A, glue B and coloring agent; A first glue pumping mechanism, the first glue pumping mechanism is fixedly arranged on the mounting seat, and the first glue pumping mechanism is used to transport glue A to the mixing mechanism; A second glue pumping mechanism, the second glue pumping mechanism is fixedly arranged on the mounting seat, and the second glue pumping mechanism is used to transport glue B to the mixing mechanism; A first servo drive mechanism, the first servo drive mechanism is fixedly disposed on the mounting seat, and the first servo drive mechanism is used to drive the first glue pumping mechanism to work; A second servo drive mechanism, the second servo drive mechanism is fixedly disposed on the mounting seat, and the second servo drive mechanism is used to drive the second glue pumping mechanism to work; A first colorant pumping mechanism, the first colorant pumping mechanism is fixedly disposed on the mounting seat, and the first colorant pumping mechanism is used to transport the first colorant to the mixing mechanism; A second colorant pumping mechanism, the second colorant pumping mechanism is fixedly disposed on the mounting seat, the second colorant pumping mechanism is used to deliver a second colorant to the mixing mechanism, the second colorant and the first colorant being arranged in different colors; A control cabinet is fixedly disposed on the mounting base, and is used at least to control the operation of the first servo drive mechanism, the second servo drive mechanism, the first colorant pumping mechanism, and the second colorant pumping mechanism.

2. The servo-driven proportional glue feeding device according to claim 1, characterized in that: The first servo drive mechanism and the second servo drive mechanism both include: a servo electric cylinder, a transfer rod, a base and a plurality of pull rods. The servo electric cylinder is fixedly mounted on the base, and the output end of the servo electric cylinder passes through the base and is connected to the first glue pumping mechanism or the second glue pumping mechanism. One end of each of the pull rods is fixedly connected to the base, and the other end of each of the pull rods is fixedly connected to the first glue pumping mechanism or the second glue pumping mechanism.

3. The servo-driven proportional glue feeding device according to claim 2, characterized in that: The first servo drive mechanism and the second servo drive mechanism also include: two follower cylinders and a follower plate, the two follower cylinders are both arranged on the mounting seat, the output ends of the two follower cylinders are both arranged upward and connected to the follower plate, and the base is fixedly mounted on the follower plate.

4. The servo-driven proportional glue feeding device according to claim 2, characterized in that: The first glue pumping mechanism and the second glue pumping mechanism both include: a plunger pump, a plunger rod, a pressure plate, an empty barrel detection device and a barrel unloading air supply interface. The plunger rod is arranged at the upper end of the plunger pump, the pressure plate is arranged at the lower end of the plunger pump, the empty barrel detection device and the barrel unloading air supply interface are both arranged on the pressure plate, the upper end of the plunger rod is connected to the transfer rod, and the plunger pump has a discharge port.

5. The servo-driven proportional glue feeding device according to claim 4, characterized in that: The first glue pumping mechanism and the second glue pumping mechanism also include: a reflux interface, a striker valve and a reflux pipe, the reflux interface is connected to the output end of the plunger pump, the striker valve is connected between the reflux interface and one end of the reflux pipe, and the other end of the reflux pipe is connected to the pressing plate.

6. The servo-driven proportional glue feeding device according to claim 1, characterized in that: The first colorant pumping mechanism and the second colorant pumping mechanism both include: a bracket, a colorant barrel, a high-pressure pumping unit, a driving cylinder and an outlet assembly, the lower end of the bracket is connected to the mounting seat, the upper end of the bracket is connected to the high-pressure pumping unit, the upper end of the high-pressure pumping unit is connected to the colorant barrel, the lower end of the high-pressure pumping unit is connected to the driving cylinder, and the outlet assembly is provided on the high-pressure pumping unit.

7. The servo-driven proportional glue feeding device according to claim 1, characterized in that: Also includes: The metering and pressure monitoring device comprises at least two pressure sensors and four flow meters, wherein the two pressure sensors are used to monitor the output pressures of the A glue and the B glue respectively, and the four flow meters are used to monitor the output flow rates of the A glue, the B glue, the first colorant and the second colorant respectively.

8. The servo-driven proportional glue feeding device according to claim 1, characterized in that: The control cabinet comprises: an electrical control box, an electrical isolation plate, a manual operating component and a pneumatic control box which are arranged in sequence from top to bottom, and a human-machine interaction screen is arranged on the outer wall of the electrical control box.

9. The servo-driven proportional glue feeding device according to claim 1, characterized in that: The first glue pumping mechanism, the second glue pumping mechanism, the first servo drive mechanism, the second servo drive mechanism, the first colorant pumping mechanism and the second colorant pumping mechanism are all arranged on one side of the control cabinet, the first colorant pumping mechanism, the first glue pumping mechanism and the control cabinet are arranged in sequence, and the second colorant pumping mechanism, the second glue pumping mechanism and the control cabinet are arranged in sequence.

10. The servo-driven proportional glue feeding device according to claim 1, characterized in that: The mounting base includes: a base plate and a plurality of casters, wherein the plurality of casters are arranged on the lower surface of the base plate, and the first glue pumping mechanism, the second glue pumping mechanism, the first servo drive mechanism, the second servo drive mechanism, the first colorant pumping mechanism and the second colorant pumping mechanism are arranged on the upper surface of the base plate.

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