Complete device for injection molding production of vehicle interior trim parts with automatic feeding and discharging functions

Abstract

The invention discloses vehicle interior trim part injection molding production complete equipment capable of achieving automatic feeding and discharging, and relates to the technical field of injection molding production, the injection molding production complete equipment comprises a workbench, a hot melting conveying module, an injection molding hydraulic cylinder, a pressure relief module, a feeding module, a mold assembly, an ejection module and a material taking module, a material taking module is arranged on the workbench, the workbench is fixedly connected with the mold assembly, a hot melting conveying module is arranged on the workbench, the hot melting conveying module is fixedly connected with the injection molding hydraulic cylinder, the hot melting conveying module is fixedly connected with the pressure relief module, the hot melting conveying module is fixedly connected with the feeding module, and the hot melting conveying module is attached to the mold assembly. According to the device, automatic feeding and discharging can be achieved, gas can be introduced into the ejection modules to control separation of a product and a mold, gas in a cavity can be exhausted through the ejection modules, the ejection modules are automatically limited in the injection molding process to prevent the ejection modules from being pressed to move, and the pressure relief module prevents the injection molding pressure from being too large.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding production, in particular to a complete set of injection molding production equipment for vehicle interior decoration parts with automatic material feeding and discharging. Background Art

[0002] Some automotive interior parts are made of soft materials and are thin, which makes them easy to be damaged during injection molding. They are not easy to separate and the ejector pins cannot completely eject the interior parts.

[0003] In the prior art, the injection molding device is more prone to excessive injection pressure. Excessive injection pressure will cause the mold to bear a huge force, which may cause the mold cavity, core and other parts to deform, causing the plastic melt to overflow and form flash. Summary of the invention

[0004] The purpose of the present invention is to provide a complete set of injection molding production equipment for vehicle interior decoration parts with automatic material feeding and unloading, so as to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a complete set of injection molding production equipment for vehicle interior parts with automatic loading and unloading, comprising a workbench, a hot melt conveying module, an injection hydraulic cylinder, a pressure relief module, a loading module, a mold assembly, an ejection module and a picking module, the workbench is placed on a plane, the loading module is placed on a plane, the picking module is arranged on the workbench, the workbench is fixedly connected to the mold assembly, a hot melt conveying module is arranged on the workbench, the hot melt conveying module is fixedly connected to several injection hydraulic cylinders, the hot melt conveying module is fixedly connected to the pressure relief module, the hot melt conveying module is fixedly connected to the loading module, the hot melt conveying module is bonded to the mold assembly, and several ejection modules are arranged on the mold assembly.

[0006] The workbench is used to fix various components, put plastic particles into the feeding module, the feeding module conveys the plastic particles to the hot melt conveying module, the hot melt conveying module heats the plastic particles into a plastic melt, the ejection module discharges the gas in the mold assembly, the injection hydraulic cylinder injects the plastic melt into the mold assembly for cooling and molding, when the injection pressure is too high, the excess plastic melt enters the pressure relief module to prevent the mold assembly from being damaged due to excessive pressure and the injection product from flashing, the ejection module can separate the molded product from the mold assembly, and the material taking module takes out the molded product.

[0007] Furthermore, the hot melt delivery module includes a connecting block, a fixed block, a barrel, a screw, a heater, a support column, a slider and a driving motor, the connecting block is fixedly connected to the workbench, the fixed block is fixedly connected to the workbench, a slide groove is provided on the fixed block, the fixed block is slidably connected to the slider through the slide groove, mounting holes are respectively provided at both ends of the fixed block, the fixed block is fixedly connected to the injection hydraulic cylinder through the mounting holes, connecting bosses are provided at both ends of the slider, the slider is fixedly connected to the telescopic end of the injection hydraulic cylinder through the connecting boss, the slider is fixedly connected to the driving motor, a barrel is provided on the connecting block, the screw fits inside the barrel, one end of the screw passes through the connecting block and the slider in sequence, the screw is slidably connected to the connecting block, and the screw It is fixedly connected to the driving motor, a plurality of heaters are arranged on the barrel, the barrel is fixedly connected to the support column away from the connecting block, the barrel is fixedly connected to the pressure relief module, the barrel is fitted with the mold assembly, and the top of the connecting block is fixedly connected to the feeding module; the connecting block is used to fix various components, and the fixed block can prevent the slider from shifting when moving. The driving motor controls the screw to rotate, stirs the plastic particles in the barrel evenly and transports them to the gate of the barrel, the heater gradually heats the plastic particles into a plastic melt, and the support column prevents the barrel from sinking at the pouring head. The connecting block and the bottom of the support column are connected to the workbench through a slide rail for easy movement, and the injection hydraulic cylinder controls the movement of the screw through the slider to inject the plastic melt into the mold assembly.

[0008] Furthermore, the pressure relief module includes a pressure relief pipe, a push rod, a push block, a guide block, a connecting rod, a counterweight block, a ventilation pipe, a double-headed piston and a limit block. The barrel is fixedly connected to the pressure relief pipe, and the barrel is communicated with the pressure relief pipe pipeline. A push block is arranged in the pressure relief pipe, and the push block is slidably connected to the pressure relief pipe. The push block is fixedly connected to the push rod, and the top end of the push rod passes through the pressure relief pipe and is fixedly connected to the counterweight block. The push rod is slidably connected to the pressure relief pipe, and the outer side of the pressure relief pipe is slidably connected to the guide block. A number of connecting rods are arranged on the guide block, and the top end of the connecting rod is fixedly connected to the counterweight block. A ventilation pipe is arranged on the top end of the pressure relief pipe, and the pressure relief pipe and the ventilation pipe pipeline The ventilating pipe is connected with the double-headed piston in a sliding connection. A limit block is arranged at one end of the ventilating pipe away from the pressure relief pipe. A through hole is arranged on the limit block. When the push block is located at the bottom end of the pressure relief pipe, the double-headed piston is located at one end of the ventilating pipe close to the pressure relief pipe. The pressure relief pipe is convenient for storing the plastic melt. The counterweight block provides pressure for the push block through the push rod to prevent the diameter of the plastic melt from entering the pressure relief pipe when the pressure is low. The counterweight block is connected to the guide block through a connecting rod to prevent the counterweight block from shifting. It is difficult for the push block to achieve complete sealing. The double-headed piston and the ventilating pipe can prevent impurities in the air from entering and affecting the recovery of the plastic melt. The limit block limits the sliding distance of the double-headed piston.

[0009] Furthermore, the feeding module includes a spiral feeding unit and a hopper, the spiral feeding unit is placed on a plane, the spiral feeding unit is fixedly connected to the hopper, the hopper is fixedly connected to a connecting block, a feeding hole is provided on the connecting block, and the hopper is connected to the barrel pipeline through the feeding hole of the connecting block; the spiral feeding unit facilitates the quantitative feeding of plastic particles into the barrel, and the hopper facilitates the plastic particles to enter the feeding barrel.

[0010] Furthermore, the mold assembly includes a mold clamping hydraulic cylinder, a mold frame, a movable plate, a fixed plate, a concave mold, a punch, a guide assembly, a guide column and a limit module. The mold frame is fixedly connected to the workbench, and a plurality of guide columns are arranged on the mold frame. The guide columns pass through the movable plate and are fixedly connected to the fixed plate. The movable plate is slidably connected to the guide columns. The movable plate is fixedly connected to the concave mold. The fixed plate is provided with a mounting groove. The mounting groove of the fixed plate is fixedly connected to the punch. The punch is provided with a plurality of guide assemblies. The mold clamping hydraulic cylinder is fixedly connected to the mold frame. The telescopic end of the mold clamping hydraulic cylinder passes through the movable plate. The die frame is fixedly connected to the movable plate, and a plurality of ejector modules are arranged on the die. The clamping hydraulic cylinder controls the movable plate to slide on the guide column. The die frame is used to fix various components. The movable plate drives the die to move. The punch is fixed on the fixed plate. During cooling, the cooling effect gradually decreases along the direction of water flow. The guide assembly is used to maintain uniform cooling effect at each position and reduce stress deformation. The ejector module usually uses a spring to reset. When the injection pressure is high, the plastic melt will extrude the ejector module and affect the shape of the product. The limit module prevents the ejector module from moving due to pressure extrusion.

[0011] Furthermore, the ejection module includes a fixed tube, a connecting tube, an ejection rod, a limiting base, a connecting column and a reset spring, the connecting tube is provided with a fixed boss, the connecting tube is fixedly connected to the fixed tube through the fixed boss, the top of the ejection rod is provided with an ejection boss, the ejection boss of the ejection rod is slidably connected to the connecting tube, a plurality of connecting columns are provided at the bottom of the fixed tube, a plurality of connecting columns are fixedly connected to the limiting base, the limiting base is provided with a circular hole, the limiting base is slidably connected to the ejection rod through the circular hole, a limiting boss is provided at the bottom of the ejection rod, a reset spring is provided at one end of the ejection rod close to the limiting boss, a plurality of avoidance holes are provided on the movable plate, and the avoidance holes of the movable plate are connected to the The fixed tube is fixedly connected; the fixed boss of the connecting tube can be fixed to the fixed tube by threads, which is convenient for installation and disassembly. The connecting column fixes the limit base on the fixed tube, and the reset spring keeps the position of the ejector rod unchanged. During ventilation, the gas pushes the ejector rod upward, and when the ejector boss of the ejector rod is ejected, the gas can enter the mold cavity to separate the cooled and formed products. During vacuum suction, the gas in the fixed tube is discharged, the pressure is reduced, and the ejector rod moves downward. When the ejector rod moves to the bottom of the connecting tube, the fixed tube is connected to the cavity, and the gas in the cavity is discharged, thereby increasing the filling speed of the plastic melt, reducing the generation of weld marks, and preventing the thinner areas from cooling quickly.

[0012] Furthermore, the guide assembly includes a fixed rod and a spiral sheet, the fixed rod is fixedly connected to the spiral sheet, the punch is provided with a plurality of cooling holes, the spiral sheet fits with the cooling holes of the punch, and the pitch of the spiral sheet gradually increases along the water flow direction; as the flow temperature of the coolant gradually rises, the cooling effect gradually decreases, and the pitch of the spiral sheet gradually increases along the water flow direction, thereby increasing the contact between the coolant and the mold and gradually improving the heat exchange cooling effect of the coolant.

[0013] Furthermore, the limiting module includes a sliding rod and a limiting block, a plurality of air inlet holes are respectively provided at both ends of the movable plate, the air inlet holes of the movable plate are connected with the avoidance hole pipe of the movable plate, the sliding rod is slidably connected with the air inlet hole of the movable plate, the limiting block is fixedly connected with the air inlet hole of the movable plate, and an air vent is provided on the limiting block; the avoidance hole of the movable plate discharges gas during vacuum suction, and the end of the sliding rod away from the avoidance hole of the movable plate circulates with the air, slides inwardly under the influence of air pressure, and finally rests on the limiting boss of the ejector rod to prevent the ejector rod from moving when the pressure increases.

[0014] Furthermore, the inner hole diameter of the connecting pipe is smaller than the inner hole diameter of the fixed pipe, and the several avoidance holes of the movable plate are connected through an air supply pipe. One end of the air supply pipe is used for vacuum suction, and the other end is used for air supply. The inner hole diameter of the connecting pipe is smaller than the inner hole diameter of the fixed pipe, which is convenient for the fixed pipe to be connected with the chamber when the ejection rod moves downward. One end of the air supply pipe is used for vacuum suction, and the other end is used for air supply. Solenoid valves are installed at both ends to prevent the two ends of the air supply pipe from being directly connected.

[0015] Furthermore, the material taking module includes an automatic gripper and a vacuum suction cup. The automatic gripper is fixedly connected to the workbench, and the vacuum suction cup is arranged on the automatic gripper. The automatic gripper controls the movement of the vacuum suction cup to take out the cooled and formed product, thereby improving production efficiency.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The ejector module can discharge the gas in the concave and convex molds through vacuum suction, thereby increasing the filling speed of the plastic melt, reducing the generation of weld marks, and preventing the thinner areas from cooling quickly. The ejector module can also pass gas to separate the products to prevent the products from being damaged by direct ejection;

[0018] 2. The limit module prevents the ejector rod from moving when the pressure increases;

[0019] 3. The pressure relief module prevents the mold from being damaged and the injection product from flashing when the injection pressure is too high. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a cross-sectional structural schematic diagram of the connection between the pressure relief module and the barrel of the present invention;

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

[0023] Figure 4 It is a schematic diagram of the structure of the mold assembly of the present invention;

[0024] Figure 5 It is a schematic diagram of the partial structure of the mold assembly and the ejection module structure of the present invention;

[0025] Figure 6 It is a schematic diagram of the structure of the movable plate, the concave mold, the limit module and the ejection module of the present invention;

[0026] Figure 7 for Figure 6 A schematic diagram of the cross-sectional structure at point B;

[0027] Figure 8 for Figure 7 A schematic diagram of the enlarged structure at C;

[0028] Fig. 9 It is a schematic diagram of the structure of the flow guide component of the present invention.

[0029] In the figure: 1. workbench; 2. hot melt conveying module; 21. connecting block; 22. fixing block; 23. barrel; 24. screw; 25. heater; 26. support column; 27. slider; 28. drive motor; 3. injection hydraulic cylinder; 4. pressure relief module; 41. pressure relief pipe; 42. push rod; 43. push block; 44. guide block; 45. connecting rod; 46. counterweight block; 47. ventilation pipe; 48. double-headed piston; 49. limit block; 5. feeding module; 51. spiral feeding unit; 52. hopper; 6. Mould assembly; 61, clamping hydraulic cylinder; 62, mould frame; 63, movable plate; 64, fixed plate; 65, die; 66, punch; 67, guide assembly; 671, fixed rod; 672, spiral sheet; 68, guide column; 69, limit module; 691, slide bar; 692, limit block; 7, ejector module; 71, fixed pipe; 72, connecting pipe; 73, ejector rod; 74, limit base; 75, connecting column; 76, reset spring; 8, material picking module; 81, automatic gripper; 82, vacuum suction cup. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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.

[0031] Example: Figure 1-Figure 9 As shown, the present invention provides a technical solution, a complete set of injection molding production equipment for vehicle interior parts with automatic feeding and unloading, including a workbench 1, a hot melt conveying module 2, an injection hydraulic cylinder 3, a pressure relief module 4, a loading module 5, a mold assembly 6, an ejection module 7 and a picking module 8, the workbench 1 is placed on a plane, the loading module 5 is placed on a plane, the picking module 8 is arranged on the workbench 1, the workbench 1 is fixedly connected to the mold assembly 6, the hot melt conveying module 2 is arranged on the workbench 1, the hot melt conveying module 2 is fixedly connected to a plurality of injection hydraulic cylinders 3, the hot melt conveying module 2 is fixedly connected to the pressure relief module 4, the hot melt conveying module 2 is fixedly connected to the loading module 5, the hot melt conveying module 2 is fitted with the mold assembly 6, and a plurality of ejection modules 7 are arranged on the mold assembly 6.

[0032] The workbench 1 is used to fix various components, put plastic particles into the feeding module 5, the feeding module 5 conveys the plastic particles to the hot melt conveying module 2, the hot melt conveying module 2 heats the plastic particles into a plastic melt, the ejection module 7 discharges the gas in the mold assembly 6, the injection hydraulic cylinder 3 injects the plastic melt into the mold assembly 6 for cooling and molding, when the injection pressure is too high, the excess plastic melt enters the pressure relief module 4 to prevent the mold assembly 6 from being damaged due to excessive pressure and the injection product from flashing, the ejection module 7 can separate the molded product from the mold assembly 6, and the material taking module 8 takes out the molded product.

[0033] like Figure 1As shown, the hot melt conveying module 2 includes a connecting block 21, a fixed block 22, a barrel 23, a screw 24, a heater 25, a support column 26, a slider 27 and a driving motor 28. The connecting block 21 is fixedly connected to the workbench 1, and the fixed block 22 is fixedly connected to the workbench 1. A slide groove is provided on the fixed block 22, and the fixed block 22 is slidably connected to the slider 27 through the slide groove. Mounting holes are respectively provided at both ends of the fixed block 22, and the fixed block 22 is fixedly connected to the injection hydraulic cylinder 3 through the mounting holes. Connecting bosses are provided at both ends of the slider 27, and the slider 27 is connected to the injection hydraulic cylinder 3 through the connecting bosses. The telescopic end is fixedly connected, the slider 27 is fixedly connected to the drive motor 28, a barrel 23 is arranged on the connecting block 21, the screw 24 is fitted with the inside of the barrel 23, one end of the screw 24 passes through the connecting block 21 and the slider 27 in sequence, the screw 24 is slidably connected to the connecting block 21, the screw 24 is fixedly connected to the drive motor 28, a plurality of heaters 25 are arranged on the barrel 23, the barrel 23 is fixedly connected to the support column 26 away from the connecting block 21, the barrel 23 is fixedly connected to the pressure relief module 4, the barrel 23 is fitted with the mold assembly 6, and the top of the connecting block 21 is fixedly connected to the feeding module 5.

[0034] The connecting block 21 is used to fix various components, the fixing block 22 can prevent the slider 27 from shifting when moving, the driving motor 28 controls the screw 24 to rotate, the plastic particles in the barrel 23 are evenly stirred and transported to the gate of the barrel 23, the heater 25 gradually heats the plastic particles into a plastic melt, the support column 26 prevents the barrel 23 from sinking at the pouring head, the connecting block 21 and the bottom of the support column 26 are connected to the workbench 1 through a slide rail for easy movement, the injection hydraulic cylinder 3 controls the movement of the screw 24 through the slider 27, and injects the plastic melt into the mold assembly 6.

[0035] like Figure 2 , Figure 3As shown, the pressure relief module 4 includes a pressure relief pipe 41, a push rod 42, a push block 43, a guide block 44, a connecting rod 45, a counterweight block 46, a ventilation pipe 47, a double-headed piston 48 and a limit block 49. The barrel 23 is fixedly connected to the pressure relief pipe 41, and the barrel 23 is connected to the pressure relief pipe 41 through a pipeline. A push block 43 is provided in the pressure relief pipe 41, and the push block 43 is slidably connected to the pressure relief pipe 41. The push block 43 is fixedly connected to the push rod 42. The top end of the push rod 42 passes through the pressure relief pipe 41 and is fixedly connected to the counterweight block 46. The push rod 42 is slidably connected to the pressure relief pipe 41. The outer side of the pressure relief pipe 41 is slidably connected to the guide block 44, and a plurality of connecting rods 45 are arranged on the guide block 44. The top of the connecting rod 45 is fixedly connected to the counterweight block 46. A ventilation pipe 47 is arranged on the top of the pressure relief pipe 41. The pressure relief pipe 41 is connected to the ventilation pipe 47 through pipelines. The ventilation pipe 47 is slidably connected to the double-headed piston 48. A limit block 49 is arranged at one end of the ventilation pipe 47 away from the pressure relief pipe 41. A through hole is provided on the limit block 49. When the push block 43 is located at the bottom end of the pressure relief pipe 41, the double-headed piston 48 is located at one end of the ventilation pipe 47 close to the pressure relief pipe 41.

[0036] The pressure relief pipe 41 is convenient for storing plastic melt, the counterweight block 46 provides pressure to the push block 43 through the push rod 42 to prevent the diameter of the plastic melt from entering the pressure relief pipe 41 when the pressure is low, the counterweight block 46 is connected to the guide block 44 through the connecting rod 45 to prevent the counterweight block 46 from shifting, and it is difficult for the push block 43 to achieve complete sealing. The double-headed piston 48 and the ventilation pipe 47 can prevent impurities in the air from entering and affecting the recovery of the plastic melt, and the limit block 49 limits the sliding distance of the double-headed piston 48.

[0037] like Figure 1 As shown, the feeding module 5 includes a spiral feeding unit 51 and a hopper 52. The spiral feeding unit 51 is placed on a plane. The spiral feeding unit 51 is fixedly connected to the hopper 52. The hopper 52 is fixedly connected to the connecting block 21. A feeding hole is provided on the connecting block 21. The hopper 52 is connected to the barrel 23 pipeline through the feeding hole of the connecting block 21.

[0038] The spiral feeding unit 51 facilitates the quantitative feeding of plastic particles into the barrel 23 , and the hopper 52 facilitates the plastic particles to enter the barrel 23 .

[0039] like Figure 4As shown, the mold assembly 6 includes a clamping hydraulic cylinder 61, a mold frame 62, a movable plate 63, a fixed plate 64, a die 65, a punch 66, a guide assembly 67, a guide column 68 and a limit module 69. The mold frame 62 is fixedly connected to the workbench 1, and a plurality of guide columns 68 are arranged on the mold frame 62. The guide columns 68 pass through the movable plate 63 and are fixedly connected to the fixed plate 64. The movable plate 63 is slidably connected to the guide columns 68. The movable plate 63 is fixedly connected to the die 65. The fixed plate 64 is provided with a mounting groove. The mounting groove of the fixed plate 64 is fixedly connected to the punch 66. The punch 66 is provided with a plurality of guide assemblies 67. The clamping hydraulic cylinder 61 is fixedly connected to the mold frame 62. The telescopic end of the clamping hydraulic cylinder 61 passes through the mold frame 62 and is fixedly connected to the movable plate 63. A plurality of ejection modules 7 are arranged on the die 65.

[0040] The clamping hydraulic cylinder 61 controls the movable plate 63 to slide on the guide column 68. The mold frame 62 is used to fix various components. The movable plate 63 drives the concave mold 65 to move. The convex mold 66 is fixed on the fixed plate 64. During cooling, the cooling effect gradually decreases along the direction of water flow. The guide component 67 is used to maintain uniform cooling effect at each position and reduce stress deformation. The ejector module 7 usually uses a spring to reset. When the injection pressure is high, the plastic melt will squeeze the ejector module 7 and affect the product shape. The limit module 69 prevents the ejector module 7 from moving due to pressure extrusion.

[0041] like Figure 8 As shown, the ejection module 7 includes a fixed tube 71, a connecting tube 72, an ejection rod 73, a limiting base 74, a connecting column 75 and a reset spring 76. The connecting tube 72 is provided with a fixed boss, and the connecting tube 72 is fixedly connected to the fixed tube 71 through the fixed boss. The top of the ejection rod 73 is provided with an ejection boss, and the ejection boss of the ejection rod 73 is slidably connected to the connecting tube 72. A plurality of connecting columns 75 are provided at the bottom of the fixed tube 71, and the plurality of connecting columns 75 are fixedly connected to the limiting base 74. The limiting base 74 is provided with a circular hole, and the limiting base 74 is slidably connected to the ejection rod 73 through the circular hole. A limiting boss is provided at the bottom of the ejection rod 73, and a reset spring 76 is provided at one end of the ejection rod 73 near the limiting boss. The movable plate 63 is provided with a plurality of avoidance holes, and the avoidance holes of the movable plate 63 are fixedly connected to the fixed tube 71.

[0042] The fixing boss of the connecting tube 72 can be fixed to the fixing tube 71 by threads, which is convenient for installation and disassembly. The connecting column 75 fixes the limiting base 74 on the fixing tube 71, and the return spring 76 keeps the position of the ejector rod 73 unchanged. During ventilation, the gas pushes the ejector rod 73 upward, and when the ejection boss of the ejector rod 73 is ejected, the gas can enter the mold cavity to separate the cooled and molded products. During vacuum suction, the gas in the fixing tube 71 is discharged, the pressure is reduced, and the ejector rod 73 moves downward. When the ejector rod 73 moves to the bottom of the connecting tube 72, the fixing tube 71 is connected with the cavity, and the gas in the cavity is discharged, thereby increasing the filling speed of the plastic melt, reducing the generation of weld marks, and preventing the thinner areas from cooling down quickly.

[0043] like Fig. 9 As shown, the guide assembly 67 includes a fixed rod 671 and a spiral blade 672, the fixed rod 671 is fixedly connected to the spiral blade 672, the punch 66 is provided with a plurality of cooling holes, the spiral blade 672 fits with the cooling holes of the punch 66, and the pitch of the spiral blade 672 gradually increases along the water flow direction.

[0044] As the coolant flows, the temperature gradually rises, causing the cooling effect to gradually decrease. The pitch of the spiral blade 672 gradually increases along the water flow direction, increasing the contact between the coolant and the mold, and gradually improving the heat exchange cooling effect of the coolant.

[0045] like Figure 7 As shown, the limiting module 69 includes a sliding rod 691 and a limiting block 692, and a plurality of air inlet holes are respectively provided at both ends of the movable plate 63. The air inlet holes of the movable plate 63 are connected with the avoidance hole pipe of the movable plate 63, the sliding rod 691 is slidably connected with the air inlet holes of the movable plate 63, the limiting block 692 is fixedly connected with the air inlet holes of the movable plate 63, and a vent hole is provided on the limiting block 692.

[0046] The avoidance hole of the movable plate 63 discharges gas during vacuum suction, and the end of the sliding rod 691 away from the avoidance hole of the movable plate 63 is in circulation with the air, slides inwardly under the influence of air pressure, and finally abuts against the limiting boss of the ejection rod 73 to prevent the ejection rod 73 from moving when the pressure increases.

[0047] like Figure 8 As shown, the inner diameter of the connecting tube 72 is smaller than the inner diameter of the fixed tube 71, and the plurality of avoidance holes of the movable plate 63 are connected through an air supply pipe, one end of which is used for vacuum suction and the other end is used for air supply.

[0048] The inner diameter of the connecting tube 72 is smaller than that of the fixed tube 71, so that the fixed tube 71 is connected with the chamber when the ejection rod 73 moves downward. One end of the gas pipe is used for vacuum suction and the other end is used for gas supply. Solenoid valves are installed at both ends to prevent the two ends of the gas pipe from being directly connected.

[0049] like Figure 1 As shown, the material picking module 8 includes an automatic gripper 81 and a vacuum suction cup 82 . The automatic gripper 81 is fixedly connected to the workbench 1 , and the vacuum suction cup 82 is arranged on the automatic gripper 81 .

[0050] The automatic gripper 81 controls the vacuum suction cup 82 to move and take out the cooled and formed product, thereby improving production efficiency.

[0051] The working principle of the present invention is as follows: plastic particles are placed in the spiral feeding unit 51, the spiral feeding unit 51 transports the plastic particles to the barrel 23, the screw 24 stirs the plastic particles in the barrel 23 evenly and transports them toward the gate of the barrel 23, the heater 25 gradually heats the plastic particles into a plastic melt, the ejection module 7 vacuum suctions the gas in the die 65 and the punch 66, the injection hydraulic cylinder 3 injects the plastic melt into the die 65 and the punch 66 for cooling and molding, when the injection pressure is too large, the excess plastic melt enters the pressure relief module 4, the ejection module 7 passes gas to separate the molded product from the mold assembly 6, and the automatic gripper 81 controls the vacuum suction cup 82 to take out the molded product.

[0052] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A complete set of injection molding production equipment for vehicle interior decoration parts with automatic loading and unloading, characterized by: The injection molding production set comprises a workbench (1), a hot melt conveying module (2), an injection molding hydraulic cylinder (3), a pressure relief module (4), a loading module (5), a mold assembly (6), an ejection module (7) and a material taking module (8). The workbench (1) is placed on a plane, the loading module (5) is placed on a plane, the loading module (8) is arranged on the workbench (1), the workbench (1) is fixedly connected to the mold assembly (6), the hot melt conveying module (2) is arranged on the workbench (1), the hot melt conveying module (2) is fixedly connected to a plurality of injection molding hydraulic cylinders (3), the hot melt conveying module (2) is fixedly connected to the pressure relief module (4), the hot melt conveying module (2) is fixedly connected to the loading module (5), the hot melt conveying module (2) is fitted to the mold assembly (6), and a plurality of ejection modules (7) are arranged on the mold assembly (6).

2. The complete set of automatic loading and unloading vehicle interior parts injection molding production equipment according to claim 1 is characterized by: The hot melt conveying module (2) comprises a connecting block (21), a fixing block (22), a barrel (23), a screw (24), a heater (25), a support column (26), a slider (27) and a driving motor (28); the connecting block (21) is fixedly connected to the workbench (1); the fixing block (22) is fixedly connected to the workbench (1); a slide groove is provided on the fixing block (22); the fixing block (22) is slidably connected to the slider (27) via the slide groove; mounting holes are respectively provided at both ends of the fixing block (22); the fixing block (22) is fixedly connected to the injection hydraulic cylinder (3) via the mounting holes; connecting bosses are provided at both ends of the slider (27); the slider (27) is connected to the telescopic end of the injection hydraulic cylinder (3) via the connecting bosses. The connecting block (21) is fixedly connected, the slider (27) is fixedly connected to the driving motor (28), a barrel (23) is arranged on the connecting block (21), the screw (24) is fitted with the inside of the barrel (23), one end of the screw (24) passes through the connecting block (21) and the slider (27) in sequence, the screw (24) is slidably connected to the connecting block (21), the screw (24) is fixedly connected to the driving motor (28), a plurality of heaters (25) are arranged on the barrel (23), the barrel (23) is fixedly connected to the supporting column (26) away from the connecting block (21), the barrel (23) is fixedly connected to the pressure relief module (4), the barrel (23) is fitted with the mold assembly (6), and the top of the connecting block (21) is fixedly connected to the loading module (5).

3. The complete set of automatic loading and unloading vehicle interior parts injection molding production equipment according to claim 2 is characterized by: The pressure relief module (4) comprises a pressure relief pipe (41), a push rod (42), a push block (43), a guide block (44), a connecting rod (45), a counterweight block (46), a ventilation pipe (47), a double-headed piston (48) and a limit block (49); the barrel (23) is fixedly connected to the pressure relief pipe (41); the barrel (23) and the pressure relief pipe (41) are connected via a pipeline; a push block (43) is arranged in the pressure relief pipe (41); the push block (43) is slidably connected to the pressure relief pipe (41); the push block (43) is fixedly connected to the push rod (42); the top end of the push rod (42) passes through the pressure relief pipe (41) and is fixedly connected to the counterweight block (46); the push rod (42) is slidably connected to the pressure relief pipe (41); The outer side of the pressure relief pipe (41) is slidably connected to the guide block (44), a plurality of connecting rods (45) are arranged on the guide block (44), the top end of the connecting rod (45) is fixedly connected to the counterweight block (46), a ventilation pipe (47) is arranged at the top end of the pressure relief pipe (41), the pressure relief pipe (41) and the ventilation pipe (47) are in communication, the ventilation pipe (47) is slidably connected to the double-headed piston (48), a limit block (49) is arranged at one end of the ventilation pipe (47) away from the pressure relief pipe (41), a through hole is arranged on the limit block (49), when the push block (43) is located at the bottom end of the pressure relief pipe (41), the double-headed piston (48) is located at one end of the ventilation pipe (47) close to the pressure relief pipe (41).

4. The complete set of automatic loading and unloading vehicle interior parts injection molding production equipment according to claim 2 is characterized by: The feeding module (5) comprises a spiral feeding unit (51) and a hopper (52); the spiral feeding unit (51) is placed on a plane; the spiral feeding unit (51) is fixedly connected to the hopper (52); the hopper (52) is fixedly connected to a connecting block (21); a feeding hole is provided on the connecting block (21); the hopper (52) is connected to a pipe of a barrel (23) through the feeding hole of the connecting block (21).

5. The complete set of automatic loading and unloading vehicle interior parts injection molding production equipment according to claim 2, characterized in that: The mold assembly (6) comprises a mold clamping hydraulic cylinder (61), a mold frame (62), a movable plate (63), a fixed plate (64), a concave mold (65), a convex mold (66), a guide assembly (67), a guide column (68) and a limit module (69). The mold frame (62) is fixedly connected to the workbench (1). A plurality of guide columns (68) are arranged on the mold frame (62). The guide columns (68) pass through the movable plate (63) and are fixedly connected to the fixed plate (64). The movable plate (63) and the guide columns (69) are connected to the guide columns (61). 8) sliding connection, the movable plate (63) is fixedly connected to the die (65), the fixed plate (64) is provided with a mounting groove, the mounting groove of the fixed plate (64) is fixedly connected to the punch (66), the punch (66) is provided with a plurality of guide components (67), the mold clamping hydraulic cylinder (61) is fixedly connected to the mold frame (62), the telescopic end of the mold clamping hydraulic cylinder (61) passes through the mold frame (62) and is fixedly connected to the movable plate (63), and the die (65) is provided with a plurality of ejection modules (7).

6. The complete set of automatic loading and unloading injection molding production equipment for vehicle interior decoration parts according to claim 5 is characterized by: The ejection module (7) comprises a fixed tube (71), a connecting tube (72), an ejection rod (73), a limiting base (74), a connecting column (75) and a reset spring (76); the connecting tube (72) is provided with a fixed boss, the connecting tube (72) is fixedly connected to the fixed tube (71) via the fixed boss, the top of the ejection rod (73) is provided with an ejection boss, the ejection boss of the ejection rod (73) is slidably connected to the connecting tube (72), the bottom of the fixed tube (71) is provided with a plurality of A dry connecting column (75), a plurality of the connecting columns (75) are fixedly connected to a limiting base (74), the limiting base (74) is provided with a round hole, the limiting base (74) is slidably connected to an ejection rod (73) through the round hole, a limiting boss is provided at the bottom of the ejection rod (73), a return spring (76) is provided at one end of the ejection rod (73) close to the limiting boss, a plurality of avoidance holes are provided on the movable plate (63), and the avoidance holes of the movable plate (63) are fixedly connected to the fixed tube (71).

7. The complete set of automatic loading and unloading vehicle interior parts injection molding production equipment according to claim 5, characterized in that: The guide assembly (67) comprises a fixed rod (671) and a spiral sheet (672), wherein the fixed rod (671) is fixedly connected to the spiral sheet (672), the male mold (66) is provided with a plurality of cooling holes, the spiral sheet (672) fits with the cooling holes of the male mold (66), and the pitch of the spiral sheet (672) gradually increases along the direction of water flow.

8. The complete set of automatic loading and unloading vehicle interior parts injection molding production equipment according to claim 6, characterized in that: The limiting module (69) comprises a sliding rod (691) and a limiting block (692); a plurality of air inlet holes are respectively arranged at both ends of the movable plate (63); the air inlet holes of the movable plate (63) are connected to the avoiding hole pipeline of the movable plate (63); the sliding rod (691) is slidably connected to the air inlet holes of the movable plate (63); the limiting block (692) is fixedly connected to the air inlet holes of the movable plate (63); and a vent hole is arranged on the limiting block (692).

9. The complete set of automatic loading and unloading injection molding production equipment for vehicle interior decoration parts according to claim 6, characterized in that: The inner diameter of the connecting tube (72) is smaller than the inner diameter of the fixed tube (71), and the plurality of avoidance holes of the movable plate (63) are connected through an air supply pipe, one end of the air supply pipe is used for vacuum suction, and the other end is used for air supply.

10. The complete set of automatic loading and unloading injection molding production equipment for vehicle interior decoration parts according to claim 2, characterized in that: The material taking module (8) comprises an automatic gripper (81) and a vacuum suction cup (82); the automatic gripper (81) is fixedly connected to the workbench (1); and the vacuum suction cup (82) is arranged on the automatic gripper (81).

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