CN118544614B - Automatic production line and process flow comprising composite material PCM molding control system - Google Patents

Abstract

The invention relates to the technical field of composite material molding, in particular to a composite material PCM molding control system, an automatic production line and a process flow, which comprises a mold opening mechanism, a transfer control system and equipment, a heating and cooling control system and equipment, a hydraulic control system, an air pressure control system and equipment, a multi-path line source and pipeline and a background server total control system; the background server total control system is respectively connected with the mold opening mechanism, the transfer control system and equipment, the heating and cooling control system and equipment, the hydraulic control system and the air pressure control system and equipment through multiple line sources and pipelines; a steel rail is arranged at the front side of the heating and cooling control system and the equipment; the two hot presses are alternately ejected to the cold press for cooling and pressurizing, so that the utilization rate of the cold press is maximized, the waste of production resources is reduced, and the efficiency of the production line is maximized.

Description

An automated production line and process including a composite material PCM molding control system

Technical Field

The present invention relates to the technical field of composite material forming, and in particular to an automated production line and process flow including a composite material PCM forming control system.

Background Art

Traditional composite PCM molding production lines mostly use manual loading and unloading, manual assisted mold changing or layer-by-layer mold changing to achieve production. Its production efficiency is low and there are certain safety risks. In addition, due to the prepreg molding characteristics of the composite material, the heating and curing time is longer than the cooling and pressurizing time, and the heating and curing time is generally twice the cooling and pressurizing time. In order to solve the above defects, the present invention proposes an automated production line and process flow including a composite PCM molding control system. According to this requirement, this solution adopts two hot presses with one cold press and other auxiliary equipment, so that the two hot presses alternately take out the mold to the cold press for cooling and pressurization, thereby maximizing the utilization rate of the cold press, reducing the waste of production resources, and maximizing the efficiency of the production line.

Summary of the invention

The purpose of the present invention is to solve the problems existing in the prior art and to propose an automated production line and process flow including a composite material PCM molding control system.

In order to achieve the above object, the present invention adopts the following technical solutions:

An automated production line including a composite material PCM molding control system, including a mold opening mechanism, a transfer control system and equipment, a heating and cooling control system and equipment, a hydraulic control system, an air pressure control system and equipment, multiple line sources and pipelines, and a background server general control system; the background server general control system is connected to the mold opening mechanism, the transfer control system and equipment, the heating and cooling control system and equipment, the hydraulic control system, and the air pressure control system and equipment through multiple line sources and pipelines; a steel rail is arranged on the front side of the heating and cooling control system and equipment; the mold opening mechanism is arranged on the left or right side of the heating and cooling control system and equipment; the transfer control system and equipment include an induction manipulator, a finished product conveying line, a mold storage mechanism, a mold moving and mold changing mechanism;

The mold storage mechanism is located at the front side of the mold opening mechanism; the induction manipulator is located between the finished product conveying line and the mold opening mechanism, and is responsible for filling the mold opening mechanism and conveying the finished product materials to the finished product conveying line; the heating and cooling control system and equipment include a first heating control system and equipment, a second heating control system and equipment, and a cooling control system and equipment; the mold moving and mold changing mechanism circulates between the mold storage mechanism, the first heating control system and equipment, the second heating control system and equipment, and the cooling control system and equipment through the steel rail;

The first heating control system and equipment and the second heating control system and equipment are respectively provided with a hot press and a mold temperature controller of the same structure and size; the cooling control system and equipment include a cold press and a chiller;

The hydraulic control system includes a servo drive motor, a hydraulic drive unit, a hydraulic pump and a servo valve; the air pressure control system and equipment include an air compressor, a dryer, a filter, an air storage tank and multiple pipeline equipment.

Furthermore, the mold opening mechanism includes an upper crossbeam, a lower crossbeam, a slide block, an oil cylinder and a four-column pull rod, and guide wheel assembly 1, guide wheel assembly 2 and linear guide rails parallel to each other are respectively arranged on both sides of the surface of the lower crossbeam, and a mold is arranged between the guide wheel assembly 1 and the guide wheel assembly 2, and the bottom surface of the mold is in contact with the linear guide rail, and the side surfaces of the mold are in sliding contact with the guide wheel assembly 1 and the guide wheel assembly 2 respectively; the mold includes an upper mold and a lower mold, and the linear guide rail is located between the guide wheel assembly 1 and the guide wheel assembly 2, an automatic mold locking mechanism is arranged on the upper crossbeam and the slide block, a mold dragging mechanism is arranged on one side of the lower crossbeam, which is used for the mold to move on the mold opening mechanism and the mold storage mechanism, and a sprocket is arranged on the other side of the lower crossbeam, and the mold dragging mechanism and the sprocket are connected by a chain transmission.

Furthermore, the mold storage mechanism includes a material storage frame, a lifting movable frame is arranged inside the material storage frame, a lifting pulley is arranged between the lifting movable frame and the material storage frame, and a multi-layer roller assembly is arranged on the lifting movable frame.

Furthermore, the mold shifting and mold changing mechanism is configured as a multi-station structure, including at least a first station structure and a second station structure; a plurality of mold placement layers are provided on the first station structure and the second station structure; a mold support roller is provided on the mold placement layer, a base frame 1 and a base frame 2 are provided at the bottom of the mold shifting and mold changing mechanism, a walking steel wheel and a walking motor are installed on the base frame 1, a latch mechanism traction motor is provided on one side of the base frame 2, and slide rails of at least two stations are provided on the base frame 2, a latch mechanism of the same structure and size is movably arranged above each slide rail, and the latch mechanism traction motor is drive-connected to the latch mechanism; a cylinder is provided on the top of the latch mechanism, and a latch is provided at the bottom of the cylinder, and the latch is movably connected to the circular holes of the upper mold and lower mold base plates of the mold.

A process flow comprises the following steps: S1, filling;

S2, mold closing and conveying mold;

S3, hot pressing mold;

S4, cold pressing mold;

S5, conveying mold and opening mold;

S6, take out the product to the conveyor line;

S7. Loop steps S1-S6.

Furthermore, the S1 includes an induction manipulator for mold filling, and the volume calculation formula of the filler is: , where L represents the length of the mold cavity, W represents the width of the mold cavity, and H represents the thickness of the mold cavity. The surface area of the filler can be calculated. The surface area of the filler in the mold cavity is set to A. The calculation formula is expressed as: , the length of the filler in the mold can be calculated: , calculate the width of the filler: And calculate the thickness of the filler: .

Furthermore, the step S2 includes: S21, the mold opening machine closes the mold; S22, the closed mold is transported to the material storage mold frame; S23, the mold moving and mold changing mechanism then transports the closed mold to the hot press.

Furthermore, the S3 includes S31, the first hot pressing mechanism starts hot pressing; S32, the first hot pressing mechanism returns to the mold storage mechanism at the hot pressing time t/2, and pulls the next set of mold-closing molds to be pressed onto the mold-closing and mold-changing mechanism; S33, the mold-closing and mold-changing mechanism carries the second set of mold-closing molds and drives in front of the hot press of the second hot pressing mechanism; S34, the mold-closing and mold-changing mechanism pushes the mold-closing mold of the first station into the hot press of the second hot pressing mechanism, and the second set of molds starts to be heated. ; S35, the mold shifting and mold changing mechanism continues to return to the front of the mold storage mechanism, pulls the third group of mold-closing molds to be pressed that are filled with materials to the second station of the mold shifting and mold changing mechanism, and automatically moves to the hot press of the second hot pressing mechanism to wait; S36, after the hot pressing time t of the first hot pressing mechanism, the mold shifting and mold changing mechanism takes out the second group of mold-closing molds in the second hot pressing mechanism, and pushes the fourth group of mold-closing molds in the first station into the second hot pressing mechanism, and the second hot pressing mechanism starts heating the fourth group of mold-closing molds.

Furthermore, S4 includes a mold moving and mold changing mechanism carrying the second group of hot-pressed mold-closing molds to the front of the cold press, the first station of the mold moving and mold changing mechanism takes out the first combination mold in the cold press, and the second station pushes the second group of hot-pressed mold-closing molds into the cold press to start cold pressing of the second combination mold.

Furthermore, the step S5 includes S51, the first station of the mold moving and changing mechanism carries the first group of cold-pressed mold closing molds back to the mold storage mechanism, and pushes the cold-pressed mold closing molds of the first station into the mold storage mechanism; S52, the mold opening mechanism drags the first group of cold-pressed mold closing molds in the mold storage mechanism to the mold opening mechanism through the mold dragging mechanism for mold opening.

Furthermore, the mold opening in the step S52 includes S521, the mold dragging mechanism, under the guidance of the guide wheel assembly 1 and the guide wheel assembly 2, drives the sprocket and the chain to drag the heated mold from the mold storage mechanism to the mold opening mechanism for positioning; S522, the oil cylinder drives the slide block downward; S523, the automatic mold locking mechanism on the lower beam locks the substrate of the lower mold of the mold, and the automatic mold locking mechanism on the slide block locks the substrate of the upper mold of the mold; S524, the oil cylinder and the four-column pull rod retract, and the slide block moves upward; S525, the upper mold and the lower mold of the mold are separated to realize mold opening.

Furthermore, S6 includes an induction robot taking out the product and placing it on a finished product conveyor line.

Furthermore, the calculation formula of the hot pressing time T is expressed as: , where L is the length of the hot pressed product, V is the speed of the press slide, n is the rheological index of the composite material during hot pressing, D is the diameter of the mold, _Dd is the inner diameter of the mold, and α is the cone angle of the mold. Wherein, (L / V) × (1 / n) represents the adjustment factor of the required hot pressing time under a specific rheological behavior, (D / _Dd )^(n-1) represents the degree of deformation of the composite material in the mold during hot pressing, that is, the deformation rate of the composite material, 2 × sin(α/2), α represents the cone angle of the mold, sin(α/2) represents the influence of the tapered part of the mold on the material flow, which is used to calculate the flow path or pressure distribution of the material in the mold, and the speed of the press slide is deduced from the above formulas: , length of hot pressed products: , the diameter of the mold: , the inner diameter of the mold: , the taper angle of the mold: .

Compared with the prior art, the present invention has the following advantages:

The present invention provides an automated production line and process flow including a composite material PCM molding control system. This solution adopts two hot presses with a cold press and other auxiliary equipment, so that the two hot presses are alternately molded to the cold press for cooling and pressurizing, thereby maximizing the utilization rate of the cold press, reducing the waste of production resources, and maximizing the efficiency of the production line.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a three-dimensional structural diagram of the entire automated production line of the present invention;

FIG2 is a side view of the overall structure of the automated production line of the present invention;

FIG3 is a top view of the overall structure of the automated production line of the present invention;

FIG4 is a three-dimensional structural diagram of the mold opening mechanism in the present invention;

FIG5 is a three-dimensional structural diagram of the mold shifting and mold changing mechanism of the present invention;

FIG6 is a second three-dimensional structural diagram of the mold shifting and mold changing mechanism of the present invention;

FIG7 is a third perspective structural diagram of the mold shifting and mold changing mechanism of the present invention;

FIG8 is a partial cross-sectional view of the mold shifting and mold changing mechanism of the present invention.

In the figure: 1-rail; 2-mold opening mechanism; 3-induction manipulator; 4-finished product conveyor line; 5-mold storage mechanism; 6-mold moving and changing mechanism; 7-hot press; 8-mold temperature controller; 9-cold press; 10-water chiller; 11-upper beam; 12-lower beam; 13-slider; 14-oil cylinder; 15-four-column tie rod; 16-guide wheel assembly 1; 17-guide wheel assembly 2; 18-base plate; 19-mold; 20-mold upper mold; 21-mold lower mold; 22- Automatic mold locking mechanism; 23- mold dragging mechanism; 24- material storage frame; 25- lifting movable frame; 26- lifting pulley; 27- roller assembly; 28- mold support roller; 29- base frame one; 30- base frame two; 31- walking steel wheel; 32- walking motor; 33- latch mechanism drag motor; 34- slide rail; 35- latch mechanism; 36- backend server total control system; 37- hydraulic control system; 38- latch; 39- cylinder; 40- round hole.

DETAILED DESCRIPTION

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.

Embodiment 1, please refer to Figures 1-8. In Figure 1, an automated production line including a composite material PCM molding control system includes a mold opening mechanism, a transfer control system and equipment, a heating and cooling control system and equipment, a hydraulic control system, an air pressure control system and equipment, multiple line sources and pipelines, and a background server general control system 36; the background server general control system 36 is connected to the mold opening mechanism 2, the transfer control system and equipment, the heating and cooling control system and equipment, the hydraulic control system, and the air pressure control system and equipment through multiple line sources and pipelines; in this embodiment, the background server general control system 36 adopts an independent electrical control cabinet, and a touch screen is configured on the control cabinet. Parameter display, parameter modification, equipment alarm, etc. can be realized on the touch screen. The control cabinet can track, monitor, store and upload data (temperature, pressure, material parameters, etc.) to the control system in real time, and a steel rail 1 is arranged on the front side of the heating and cooling control system and equipment; the mold opening mechanism 2 is arranged on the left or right side of the heating and cooling control system and equipment; It includes an induction manipulator 3, a finished product conveying line 4, a mold storage mechanism 5, and a mold shifting and mold changing mechanism 6; in this embodiment, the induction manipulator 3 is responsible for filling and taking finished products, the finished product conveying line is used to convey finished products, the mold storage mechanism 5 is used to store the filled mold 19, and the mold shifting and mold changing mechanism 6 is used to convey the filled mold 19 to the heating and cooling control system and equipment for heating and cooling; in this embodiment, the mold storage mechanism 5 is located at the front side of the mold opening mechanism 2; the induction manipulator 3 is located between the finished product conveying line 4 and the mold opening mechanism 2, and is responsible for filling the mold opening mechanism 2 and conveying the finished product material to the finished product conveying line 4; the heating and cooling control system and equipment include a first heating control system and equipment, a second heating control system and equipment, and a cooling control system and equipment; the mold shifting and mold changing mechanism 6 circulates between the mold storage mechanism 5, the first heating control system and equipment, the second heating control system and equipment, and the cooling control system and equipment through the rail 1; the first heating control system and equipment and the second heating control system and equipment are respectively provided with a hot press 7 and a mold temperature controller 8 of the same structure and size.

Embodiment 2, on the basis of the above-mentioned embodiment 1, there are two hot presses and two mold temperature controllers, and the mold temperature controllers are respectively arranged corresponding to the hot presses, and each hot press is equipped with a mold temperature controller. In this embodiment, the mold temperature controller is used in conjunction with the hot press and is responsible for supplying heating medium to the hot press. In this embodiment, the hot press is a multi-layer press, specifically 3 layers, and the number of layers of the press can be set according to actual conditions; the thickness of the press is greater than 80 mm and above, and the materials and processing technology used must ensure that the surface of the press has good wear resistance, and the surface hardness of the press is ≥55HRC; in this embodiment, the effective working surface size of the press is designed and proposed by the supplier according to the size of the mold 19; in this embodiment, the main cylinder of the press needs to be reasonably arranged according to the force analysis to avoid the press being subjected to force Uneven; in this embodiment, the upper and lower pressing plates should be horizontal and parallel to each other. After the upper and lower pressing plates are in contact, the maximum gap caused by the non-parallelism should not be greater than 0.1mm; in addition, the press is also provided with a push-pull mold mechanism, which can cooperate with the mold moving and mold changing mechanism to realize the automatic push-pull mold 19 in and out of the hot and cold press; in any operating mode, press the emergency stop button, the press can not rise or fall, so that the safety of personnel operation is guaranteed; in this embodiment, the cooling control system and equipment include a cold press 9 and a chiller 10, among which the chiller in this embodiment is an air-cooled type, equipped with pipes and quick connectors connected to the cold press press, and the circulating medium of the chiller adopts tap water, the temperature control range is 4 to 37°C, and the temperature control accuracy is ±1°C-3.0°C.

Embodiment 3, on the basis of the above-mentioned embodiment 1, the hydraulic control system 37 includes a servo drive motor, a hydraulic drive unit, a hydraulic pump and a servo valve; the air pressure control system and equipment include an air compressor, a dryer, a filter, an air storage tank and a plurality of pipeline equipment. In this embodiment, the main power of the servo drive motor adopts a servo motor to drive a servo gear pump or a vane pump, and through PLC program optimization, the pressing speed is automatically adjusted with the load change, the motor power is reasonably used, and the energy saving effect is improved; the hydraulic system can achieve continuous control and adjustment within the pressure range, and the pressure fluctuation is better than ±0.1Mpa-0.4Mpa; in this embodiment, the hydraulic system is also equipped with an accumulator for pressurizing and speeding up and maintaining and stabilizing pressure, and an overload protection device (safety valve) is configured to ensure that the press will not be overloaded and damaged, and when the oil pressure exceeds the set value (adjustable), it will automatically overflow and discharge the oil; the hydraulic oil pipe of the hydraulic system adopts a seamless steel pipe, and the large-diameter oil circuit adopts SAE Flange connection; in this implementation, the hydraulic system has a good pressure-maintaining effect. After the system reaches the set pressure, the power is turned off and the pressure relief reaches ≤0.3Mpa-0.8Mpa within 12 hours.

Embodiment 4, on the basis of the above-mentioned embodiment 1, the mold opening mechanism 2 has the functions of automatic mold opening and mold closing. After the raw materials of the preform are placed in the mold 19 by the induction manipulator, the personnel confirm that the state is OK, and then start the mold opening mechanism to realize automatic mold closing and reach the state where the mold 19 can be stably transferred; when the mold 19 is opened, it is when the mold 19 is cooled and transferred to the mold opening mechanism. After the personnel confirm that the state is OK, start the mold opening mechanism to realize automatic mold opening; in this embodiment, the mold opening mechanism 2 includes an upper crossbeam 11, a lower crossbeam 12, a slider 13, a cylinder 14 and a four-column pull rod 15, and guide wheel assemblies 16, 17 and linear guides are arranged on both sides of the surface of the lower crossbeam 12, and guide wheel assemblies 16, 17 and linear guides are arranged between the guide wheel assemblies 16 and 17. A mold 19 is arranged so that the bottom surface of the mold 19 contacts the linear guide rail, and the side surfaces of the mold 19 are respectively in sliding contact with the guide wheel assembly 16 and the guide wheel assembly 2 17 to reduce the friction between the mold 19 and the upper beam 11 during the dragging process; in the present embodiment, the mold 19 includes an upper mold 20 and a lower mold 21, and the linear guide rail is located between the guide wheel assembly 16 and the guide wheel assembly 2 17, and an automatic mold locking mechanism 22 is arranged on the upper beam 11 and the slider 13, and a mold dragging mechanism 23 is arranged on one side of the lower beam 12 for the mold 19 to move on the mold opening mechanism 2 and the mold storage mechanism 5, and a sprocket is arranged on the other side of the lower beam 12, and the mold dragging mechanism 23 is connected to the sprocket through a chain transmission to drag the mold 19.

Embodiment 5. In this embodiment, the mold storage mechanism 5 includes a material storage frame 24, and a lifting movable frame 25 is arranged in the material storage frame 24. A lifting pulley 26 is arranged between the lifting movable frame 25 and the material storage frame 24. The lifting movable frame 25 can be lifted and lowered on the material storage frame 24 through the lifting pulley 26. A multi-layer roller assembly 27 is arranged on the lifting movable frame 25. When the mold storage mechanism 5 needs to move the mold 19 from the mold opening mechanism, the lifting movable frame 25 lifts the roller assembly 27 to the lower cross beam 12 on the mold opening mechanism through the lifting pulley 26, and keeps Make sure that the mold 19 and the roller assembly 27 on the lower beam 12 are in the same horizontal line after the mold is closed, and then the mold 19 is dragged to the mold storage mechanism 5 through the mold dragging mechanism 23 and the sprocket chain. After the roller assembly 27 of one layer is installed on the mold 19, continue to lift the roller assemblies 27 of other layers to the mold opening mechanism through the lifting movable frame 25, and the mold 19 at the lower beam 12 is installed on the mold 19 in the same horizontal line until all the roller assemblies 27 of all layers are installed on the mold 19. In this embodiment, the roller assembly has 3 layers, and the number of layers of the roller assembly can be set according to actual needs.

Embodiment 6, please refer to Figures 4 to 8 in the illustrations, a multi-station structure is provided on the mold shifting and mold changing mechanism 6, and the multi-station structure includes at least a first station structure and a second station structure; a plurality of mold placement layers are provided on the first station structure and the second station structure; a mold support roller 28 is provided on the mold placement layer, a base frame 29 and a base frame 2 30 are provided at the bottom of the mold shifting and mold changing mechanism 6, the base frame 2 30 is located above the base frame 1 29, a walking steel wheel 31 and a walking motor 32 are installed on the base frame 1 29, a latch mechanism traction motor 33 is provided on one side of the base frame 2 30, and at least two station slide rails 34 are provided on the base frame 2 30, and a latch mechanism 35 of the same structure and size is movably arranged above each slide rail 34, and the latch mechanism traction motor 33 is drivingly connected to the latch mechanism 35; A cylinder 39 is provided at the top of the latch mechanism 35, and a latch 38 is provided at the bottom of the cylinder 39. The latch 38 is movably connected to the round hole 40 of the base plate 18 of the upper mold 20 and the lower mold 21. In this embodiment, the mold shifting and changing mechanism 6 drives the walking steel wheel 31 to move back and forth or cyclically on the rail 1 through the walking motor 32, specifically, to move back and forth or cyclically between the mold storage mechanism 5, the hot press 7, and the cold press 9. Please refer to the figure 8 of the specification. In this embodiment, the mold shifting and mold changing mechanism 6 adopts a double-station design, and each station can store 3 sets of molds 19. When the mold shifting and mold changing mechanism 6 is working, the first station structure of the mold shifting and mold changing mechanism 6 carries the 3 sets of molds 19 from the mold storage mechanism 5 to the hot press 7 where the mold needs to be changed. The latch mechanism of the second station structure of the mold shifting and mold changing mechanism 6 drags the motor 33 to drive the latch mechanism 35 to move from B in the figure to A through the slide rail 34. After reaching A, the cylinder 39 on the top of the latch mechanism 35 pushes the latch 38, so that the latch 38 of the latch mechanism 35 passes through the circular hole 40 of the substrate 18, and the latch mechanism 35 is connected with the three sets of molds 19, and the latch mechanism drag motor 33 drives the latch mechanism 35 to pull the three sets of molds 19 pressed in the hot press 7 to the mold shifting and mold changing mechanism 6. At this time, the latch mechanism drag motor 33 of the mold shifting and mold changing mechanism 6 station 1 drives the latch mechanism 35 to push the three sets of molds 19 stored in the mold shifting and mold changing mechanism 6 into the hot press 7, and the cylinder 39 at the top of the latch mechanism 35 pulls the latch 38 to separate the latch mechanism 35 and the mold 19. Finally, the latch mechanism 35 is driven by the latch mechanism drag motor 33, and the first station structure of the mold shifting and mold changing mechanism 6 retreats from point A to point, thereby completing a rapid mold changing action.

Embodiment 7, on the basis of embodiment 6, when the mold 19 on the hot press 7 is heated, the mold shifting and mold changing mechanism 6 moves the heated mold 19 from the hot press 7 back to the mold shifting and mold changing mechanism 6, and the process of removing the mold 19 is basically the same as the above-mentioned process of upper mold. The difference is that the latch mechanism of the mold shifting and mold changing mechanism 6 drives the latch mechanism 35 to move from point B in the figure to point A through the slide rail 34, and then the cylinder 39 at the top of the latch mechanism 35 pushes the latch 38, so that the latch 38 of the latch mechanism 35 passes through the circular hole 40 of the substrate 18, and after the latch mechanism 35 is connected to the three sets of molds 19, the latch mechanism of the mold shifting and mold changing mechanism 6 drives the latch mechanism 35 to move from point A in the figure to point B through the slide rail 34, so that the heated mold 19 is dragged from the hot press 7 to the mold support roller 28.

Embodiment 8, a process flow comprising the following steps: S1, filler;

S2, mold closing and conveying mold 19;

S3, hot pressing mold 19;

S4, cold pressing die 19;

S5, conveying mold 19 and opening mold;

S6, take out the product to the conveyor line;

S7. Loop steps S1-S6.

Embodiment 9: In S1, an induction manipulator 3 is included to fill the mold 19, and the volume of the filler is calculated as follows: , where L represents the length of the mold cavity, W represents the width of the mold cavity, and H represents the thickness of the mold cavity. The surface area of the filler can be calculated. The surface area of the filler in the mold cavity is set to A. The calculation formula is expressed as: , the length of the filler in the mold 19 can be calculated: , calculate the width of the filler: And calculate the thickness of the filler: In this embodiment, the required size of the mold 19 is determined after calculating the length, width or thickness of the required filler. In the process of selecting the size of the mold 19, it is necessary to ensure that the length and width of the mold cavity are greater than the length and width of the filled material. The size of the mold cavity is set according to the size or volume of the filled material.

Embodiment 10, the step S2 includes: S21, mold opening machine mold closing; S22, mold closing mold 19 is transported to material storage mold frame; S23, mold shifting and mold changing mechanism then transports the mold closing mold 19 to hot press 7. In this embodiment, the speed of mold opening machine mold closing reaches: 130mm/s-160mm/s when fast down; 2mm/s~18mm/s when slow down; 0.2mm/s~7mm/s when pressing, the pressure range is maintained at 0~27Mpa, and the pressure parameter range can be adjusted according to actual conditions.

Embodiment 11, the S3 includes S31, the first hot pressing mechanism starts hot pressing; S32, the first hot pressing mechanism at the hot pressing time t/2, the mold shifting and mold changing mechanism 6 returns to the mold storage mechanism 5, and pulls the next set of mold clamping molds 19 to be pressed onto the mold shifting and mold changing mechanism 6; S33, the mold shifting and mold changing mechanism 6 carries the second set of mold clamping molds 19 and moves in front of the hot press 7 of the second hot pressing mechanism, S34, the mold shifting and mold changing mechanism 6 pushes the mold clamping mold 19 of the first station into the hot press 7 of the second hot pressing mechanism, and the second set of molds 19 starts to be heated; S35, the mold shifting and mold changing mechanism 6 continues to return to the front of the mold storage mechanism 5, and the third set of molds filled with materials is pulled to the mold shifting and mold changing mechanism 6; The closing mold 19 to be pressed is pulled to the second station of the mold moving and mold changing mechanism 6, and automatically moves to wait in front of the hot press 7 of the second hot pressing mechanism; S36, after the hot pressing time T, the mold moving and mold changing mechanism 6 takes out the closing mold 19 of the second group in the second hot pressing mechanism, and pushes the closing mold 19 of the fourth group in the first station into the second hot pressing mechanism, and the second hot pressing mechanism starts heating the closing mold 19 of the fourth group. In this embodiment, the heating rate of the hot press is: when fully loaded, the system sets the temperature to 160°, the mold 19 rises from room temperature to 150°, the heating rate is 9°C/min, and the duration is 15min.

Embodiment 12, in S4, includes a mold moving and mold changing mechanism 6 carrying a second group of hot-pressed mold-matching molds 19 to the front of the cold press 9, the first station structure of the mold moving and mold changing mechanism 6 takes out the first combination mold 19 in the cold press 9, and the second station structure pushes the second group of hot-pressed mold-matching molds 19 into the cold press 9, and starts cold pressing the second combination mold 19. In this embodiment, the cooling process is achieved by combining the cold press 9 with a chiller 10, and the cold source medium is tap water. The chiller is connected to the press table of the cold press through a pipeline and a quick connector, and the tap water is transported to the press table. The temperature control range is set at 7°C to 30°C, and the temperature control accuracy of the tap water is ±2.0°C.

Embodiment 13, the step S5 includes S51, the first station structure of the mold shifting and mold changing mechanism 6 carries the first group of cold-pressed mold closing molds 19 back to the mold storage mechanism 5, and pushes the first station cold-pressed mold closing molds 19 into the mold storage mechanism 5; S52, the mold opening mechanism 2 drags the first group of cold-pressed mold closing molds 19 in the mold storage mechanism 5 to the mold opening mechanism 2 through the mold dragging mechanism 23 for mold opening. In this embodiment, the speed of the mold opening machine when opening the mold is as follows: the fast return speed is: 100mm/s-135mm/s; the slow return speed is: 2mm/s~18mm/s; the mold opening speed is: 0.2mm/s~8mm/s.

Embodiment 14, the mold opening in the step S52 includes S521, the mold dragging mechanism 23, under the guidance of the guide wheel assembly 1 16 and the guide wheel assembly 2 17, drives the sprocket and the chain to drag the heated mold from the mold storage mechanism 5 to the mold opening mechanism 2 for positioning; S522, the oil cylinder 14 drives the slider 13 downward; S523, the automatic mold locking mechanism 22 on the lower beam 12 locks the base plate of the lower mold 21 of the mold, and the automatic mold locking mechanism 22 on the slider 13 locks the base plate of the upper mold 20 of the mold; S533, the oil cylinder 14 and the four-column pull rod 15 retract, and the slider 13 goes up; S534, the upper mold 20 of the mold 19 is separated from the lower mold 21 to realize mold opening; after mold opening, the induction robot takes out the product and places it on the finished product conveyor line.

Embodiment 13, the calculation formula of the hot pressing time T is expressed as: , where L is the length of the hot pressed product, V is the speed of the press slider, n is the rheological index of the composite material during hot pressing, D is the diameter of the mold 19, _Dd is the inner diameter of the mold 19, and α is the cone angle of the mold 19. Wherein, (L / V) × (1 / n) represents the adjustment factor of the required hot pressing time under a specific rheological behavior, (D / _Dd )^(n-1) represents the degree of deformation of the composite material in the mold during hot pressing, that is, the deformation rate of the composite material, 2 × sin(α/2), α represents the cone angle of the mold, sin(α/2) represents the influence of the tapered part of the mold on the material flow, which is used to calculate the flow path or pressure distribution of the material in the mold, and the speed of the press slider is respectively deduced from the above formula. In this embodiment, 2 × sin(α/2) represents the pressure change caused by the mold cone angle, which is usually used to adjust the hot pressing time or pressure. The speed of the press slider is calculated from the above formula: , length of hot pressed products: , the diameter of the die 19: , the inner diameter of the mold 19: , the taper angle of mold 19: In the above embodiment, during the hot pressing process of the composite material, the following parameters can be determined in the system: the length (L) of the product is set to 1000 mm; the speed of the press slide (V) is set to 10 mm/s; the mold diameter (D) is set to 500 mm; the inner diameter of the mold (D _d ) is set to 450 mm; the mold cone angle (α) is set to 60°. The time calculation formula according to the above formula is: , calculate the values of D/D _d and sin(α/2), D/D _d =500/450≈1.1111; sin(α/2)=sin(30°), sin(30°)=0.5. In this embodiment, n is the rheological index. The rheological index n is usually determined by the rheological properties of the material. It needs to be determined according to the rheological properties of different composite materials in actual working scenarios and needs to be determined through data from different tests. In this embodiment, assuming that n is known, we can substitute it into the formula, and the formula becomes: , and further conclude that: Finally, the time T value can be calculated after n is determined based on the data of the rheological properties of the composite material.

On the basis of the above embodiment, the length (L) of the product is set to 1000 mm in the system; the speed of the press slide (V) is 35 mm/s; the hot pressing time (T) is 120 seconds; the mold diameter (D) is 500 mm; the mold inner diameter (Dd) is 450 mm; the mold cone angle (α) is 60°, and the rheological index n value of the above embodiment is calculated as follows: , rearrange n: ,

Calculate sin(α/2) and (D/Dd):

sin(α/2)=sin(30°)=0.5

D/Dd=500/450=10/9

Substituting these values into the formula,

Next, we take the natural logarithm of both sides:

Continuing on the basis of the above embodiment, the press slider speed (V) is set to 35 mm/s in the system; the hot pressing time (T) is set to 120 seconds, the mold diameter (D) is set to 500 mm; the mold inner diameter (Dd) is set to 450 mm; the mold cone angle (α) is set to 60°, the rheological index value n≈1-0.221, and the length (L) of the product is calculated and substituted into the calculation formula: ,

In this example, we calculate (D/D _d ) ^n-1 :

Next, we calculate sin(α/2):

;

Substituting these values into the formula to calculate L:

According to the above formula, the length L of the product will be approximately 563.64mm. The actual product length may vary depending on the actual mold and material characteristics.

In this embodiment, technicians can also set the actual size of the hot-pressed product, the speed of the press slider, the hot-pressing time, the rheological index value, etc. according to actual needs to further calculate the diameter of the mold, the inner diameter of the mold or the taper angle of the mold to achieve automated process configuration for the entire process.

To sum up, the above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims (9)

1. An automated production line comprising a composite material PCM molding control system comprises a mold opening mechanism, a transfer control system and equipment, a heating and cooling control system and equipment, a hydraulic control system, an air pressure control system and equipment, a multi-path line source and pipeline, and a background server total control system (36); the background server total control system (36) is respectively connected with the mold opening mechanism (2), the transfer control system and equipment, the heating and cooling control system and equipment, the hydraulic control system and the air pressure control system and equipment through multiple paths of line sources and pipelines; the method is characterized in that: a steel rail (1) is arranged at the front side of the heating and cooling control system and the equipment; the die opening mechanism (2) is arranged at the left side or the right side of the heating and cooling control system and the equipment; the transfer control system and the equipment comprise an induction manipulator (3), a finished product conveying line (4), a mould storage mechanism (5), a mould moving mechanism (6);

The die storage mechanism (5) is positioned at the front side of the die opening mechanism (2); the induction manipulator (3) is positioned between the finished product conveying line (4) and the mold opening mechanism (2) and is responsible for filling materials on the mold opening mechanism (2) and conveying finished product materials to the finished product conveying line (4); the heating and cooling control system and the equipment comprise a first heating control system and equipment, a second heating control system and equipment, a cooling control system and equipment; the mould moving and changing mechanism (6) circularly moves among the mould storing mechanism (5), the first heating control system and equipment, the second heating control system and equipment, the cooling control system and equipment through a steel rail (1);

The die opening mechanism (2) comprises an upper cross beam (11), a lower cross beam (12), a sliding block (13), an oil cylinder (14) and four-column pull rods (15), wherein an automatic die locking mechanism (22) is arranged on the upper cross beam (11) and the sliding block (13), a die dragging mechanism (23) is arranged on one side of the lower cross beam (12) and used for a die (19) to walk on the die opening mechanism (2) and the die storage mechanism (5), a chain wheel is arranged on the other side of the lower cross beam (12), and the die dragging mechanism (23) is connected with the chain wheel through chain transmission; the die storage mechanism (5) comprises a storage frame (24), a lifting movable frame (25) is arranged in the storage frame (24), a lifting pulley (26) is arranged between the lifting movable frame (25) and the storage frame (24), and a multi-layer roller assembly (27) is arranged on the lifting movable frame;

The die shifting and changing mechanism is arranged to be of a multi-station structure and at least comprises a first station structure and a second station structure; a plurality of mold placing layers are arranged on the first station structure and the second station structure; a die supporting roller (28) is arranged on the die placing layer, a first chassis (29) and a second chassis (30) are arranged at the bottom of the die moving and changing mechanism (6), a traveling steel wheel (31) and a traveling motor (32) are arranged on the first chassis (29), a bolt mechanism dragging motor (33) is arranged on one side of the second chassis (30), sliding rails (34) with at least two stations are arranged on the second chassis (30), bolt mechanisms (35) with the same structure and size are movably arranged above each sliding rail (34), and the bolt mechanism dragging motor (33) is in driving connection with the bolt mechanisms (35); an air cylinder (39) is arranged at the top of the bolt mechanism (35), a bolt (38) is arranged at the bottom of the air cylinder (39), and the bolt (38) is movably connected with round holes (40) of the base plates (18) of the upper die (20) and the lower die (21) of the die;

The first heating control system and the equipment and the second heating control system and the equipment are respectively provided with a hot press (7) and a die temperature machine (8) with the same structure and size; the cooling control system and the equipment comprise a cold press (9) and a cold water machine (10);

The hydraulic control system (37) comprises a servo driving motor, a hydraulic driving unit, a hydraulic pump and a servo valve; the air pressure control system and the air pressure control equipment comprise an air compressor, a dryer, a filter, an air storage tank and a plurality of pipeline equipment.

2. An automated manufacturing line comprising a composite PCM molding control system according to claim 1, wherein: the two sides of the surface of the lower cross beam (12) are respectively provided with a first guide wheel assembly (16), a second guide wheel assembly (17) and a linear guide rail which are parallel to each other, a die (19) is arranged between the first guide wheel assembly (16) and the second guide wheel assembly (17), the bottom surface of the die (19) is contacted with the linear guide rail, and the side surfaces of the die (19) are respectively in sliding contact with the first guide wheel assembly (16) and the second guide wheel assembly (17); the die (19) comprises a die upper die (20) and a die lower die (21), and the linear guide rail is positioned between the guide wheel assembly I (16) and the guide wheel assembly II (17).

3. A process flow comprising an automated production line for a composite PCM molding control system according to any one of claims 1 to 2, comprising the steps of: s1, filling;

S2, closing and conveying a die (19);

s3, a hot-pressing die (19);

S4, cold pressing a die (19);

S5, conveying the die (19) and opening the die;

S6, taking out the product to a conveying line;

S7, circulating the steps S1-S6;

the S1 comprises a filling material of a die (19) by an induction manipulator, and the volume calculation formula of the filling material comprises the following steps: Wherein L represents the length of the filler in the cavity of the mold (19), W represents the width of the filler in the cavity of the mold (19), H represents the thickness of the filler in the cavity of the mold (19), the surface area of the filler in the cavity of the mold (19) can be calculated, the surface area of the filler in the cavity of the mold (19) is set as A, and the calculation formula is expressed as: the length of the filler in the mould (19) can be calculated: the width of the filler was calculated: calculating the thickness of the filler: ; the step S2 includes: s21, closing the mold by a mold opening machine; s22, conveying the matched die (19) to a storage die frame; s23, the die moving and changing mechanism conveys the die closing die (19) to the hot press (7).

4. A process according to claim 3, wherein: s31, a first hot pressing mechanism starts hot pressing; s32, when the first hot pressing mechanism is at the hot pressing time T/2, the mould moving and changing mechanism (6) returns to the mould storing mechanism (5) to pull the mould closing mould (19) to be pressed in the next group to the mould moving and changing mechanism (6); s33, the mould moving and changing mechanism (6) drives the second sleeve mould (19) to move in front of the hot press (7) of the second hot press mechanism, and S34, the mould moving and changing mechanism (6) pushes the mould closing mould (19) of the first station into the hot press (7) of the second hot press mechanism, and the second group of moulds (19) starts to heat; s35, before the mould moving and changing mechanism (6) continues to return to the mould storing mechanism (5), drawing a third group of mould closing moulds (19) to be pressed of the filled materials to a second station of the mould moving and changing mechanism (6), and automatically driving the mould to wait in front of a hot press (7) of a second hot press mechanism; s36, after the first hot pressing mechanism is used for hot pressing time t, the die moving and changing mechanism (6) takes out the die closing dies (19) of the second group in the second hot pressing mechanism, pushes the die closing dies (19) of the fourth group in the first station into the second hot pressing mechanism, and the second hot pressing mechanism starts heating the die closing dies (19) of the fourth group.

5. A process according to claim 3, wherein: the S4 comprises a step of taking out the first combined die (19) in the cold press (9) at a first station of the die moving and changing mechanism (6) before the die moving and changing mechanism carries the second group of hot-pressed die clamping dies (19) to travel to the cold press (9), and a step of pushing the second group of hot-pressed die clamping dies (19) into the cold press (9) at a second station to start cold pressing of the second combined die dies (19).

6. A process according to claim 3, wherein: the step S5 comprises the steps that a first station of the mould moving and changing mechanism (6) carries a first group of cold-pressed mould closing moulds (19) to return to the front of the mould storing mechanism (5), and the cold-pressed mould closing moulds (19) of the first station are pushed into the mould storing mechanism (5); s52, the mold opening mechanism (2) drags the first group of cold-pressed mold closing molds (19) in the mold storage mechanism (5) to the mold opening mechanism (2) through the mold dragging mechanism (23) to open the molds.

7. A process according to claim 6, wherein: the die opening in the step S52 comprises the step S521 of drawing the die (23) from the die storage mechanism (5) to the die opening mechanism (2) for positioning under the guiding action of the first guide wheel assembly (16) and the second guide wheel assembly (17) through the transmission of a chain wheel and a chain; s522, the oil cylinder (14) drives the sliding block (13) to move downwards; s523, an automatic mold locking mechanism (22) on the lower cross beam (12) locks a substrate of the lower mold (21) of the mold, and the automatic mold locking mechanism (22) on the sliding block (13) locks a substrate of the upper mold (20) of the mold; s524, the oil cylinder (14) and the four-column pull rod (15) retract, and the sliding block (13) moves upwards; s525, separating the upper die (20) of the die (19) from the lower die (21) of the die, and realizing die opening.

8. A process according to claim 3, wherein: and S6 comprises a step of taking out the product by the induction manipulator (3) and placing the product on the finished product conveying line (4).

9. A process according to claim 4, wherein: the calculation formula of the hot pressing time T is expressed as follows: Wherein L is the length of a hot-pressed product, V is the speed of a press slide, n is the rheological index of the composite material during hot pressing, D is the diameter of a die, D _d is the inner diameter of the die, and alpha is the cone angle of the die, wherein (L/V) x (1/n) represents the adjustment factor of the required hot-pressing time under specific rheological behavior, (D/D _d) n-1 represents the deformation degree of the composite material in the die during hot pressing, namely the deformation rate of the composite material, 2 x sin (alpha/2), alpha represents the cone angle of the die, sin (alpha/2) represents the influence of the cone part of the die on the material flow, and the flow path or pressure distribution of the material in the die is calculated, and the speed of the press slide is calculated by the formula respectively: length of hot pressed product: diameter of die: Inner diameter of the mold: taper angle of mold: 。