BMC extrusion and packaging integrated production line

Abstract

The invention relates to a BMC extrusion and packaging integrated production line in the field of BMC production and packaging, the BMC extrusion and packaging integrated production line comprises an extruder used for BMC extrusion, a stock cutter used for cutting off BMC and a packaging machine used for packaging the cut-off BMC, the extruder comprises an extrusion support and an extrusion box, the extrusion box is internally provided with a screw rod mechanism which extends towards the stock cutter and is used for extruding BMC, and the extrusion support is provided with a screw rod. The extruder is used for extruding and molding the BMC raw materials, the screw driving mechanism is arranged, the cutting knife is used for extruding the raw materials, and the packaging machine is internally provided with an unwinding mechanism, a packaging mechanism and a rotary cutting mechanism used for cutting a packaging film, the extruder is used for extruding and molding the BMC raw materials, and the arranged screw driving mechanism can realize full and uniform mixing and efficient extrusion of the BMC raw materials; the continuous accumulation and blockage phenomena of raw materials in the extruder are reduced, the extrusion stability and reliability are improved, the rotary cutting mechanism rotates synchronously, the packaging film is cut efficiently, conveying, packaging and cutting of the packaging film can be conducted continuously, and the overall efficiency of the BMC extrusion packaging production line is improved.

Description

Technical Field

[0001] The invention relates to the field of BMC production and packaging, and in particular to a BMC extrusion and packaging integrated production line. Background Art

[0002] BMC refers to bulk molding compound, which is a semi-dry molding intermediate material for manufacturing glass fiber reinforced thermosetting products. BMC is a prepreg made of glass fiber, filler, resin and other raw materials. It has excellent mechanical properties, electrical properties and chemical resistance. It is used in many fields including but not limited to automobiles, electrical electronics, transportation and so on. After the existing BMC plastic is extruded by the extruder, a cutter is needed to cut the extruded raw materials of BMC into suitable shapes to meet the needs of subsequent packaging or use.

[0003] The existing BMC extrusion packaging production line is generally composed of kneading machine, extruder, cutting machine, packaging machine and other equipment. In the production process, the various components of the BMC material are first mixed evenly by the kneading machine, and then the mixed materials are extruded and formed under high temperature and high pressure by the extruder, and then the extruded materials are cut into the required length by the cutting machine, and finally packaged by the packaging machine.

[0004] However, although the existing BMC extrusion packaging production line can meet certain production needs, it still has some defects. First, the extrusion mechanism used in the existing BMC extrusion packaging is prone to accumulation at the discharge port during the extrusion and pushing process of the material, resulting in sticky blockage of the BMC material, thereby affecting the production efficiency and product quality of BMC extrusion. Secondly, the existing packaging machine has insufficient sealing performance for the packaging film of BMC materials, resulting in oxygen entering the packaging bag and reacting with the product, causing the product to harden and fail. In addition, the existing packaging machine is prone to insufficient cutting when cutting the packaging film, resulting in separation difficulties. In addition, the existing packaging machine is usually driven by a point-actuated cylinder for cutting, so the assembly line needs to stop and wait, resulting in slow efficiency in the packaging sealing and cutting action, affecting the continuity and efficiency of the packaging, which is not conducive to the production efficiency and production quality of the BMC material extrusion packaging. Summary of the invention

[0005] The purpose of the present invention is to solve the above defects and provide a BMC extrusion and packaging integrated production line to solve the technical problems in the above background technology that the existing BMC materials are prone to blockage during the extrusion process of the extruder, and the packaging effect of the cut BMC materials is poor and the packaging efficiency is slow, thereby affecting the production efficiency and production quality of the BMC materials.

[0006] The object of the present invention is achieved in the following ways:

[0007] The BMC extrusion and packaging integrated production line comprises an extruder for BMC extrusion, a cutting machine for cutting BMC and a packaging machine for packaging the cut BMC, wherein the extruder comprises an extrusion support and an extrusion box arranged on the extrusion support, one end of the extrusion box is connected with the cutting machine through a discharging component, and a hopper for introducing BMC raw materials is arranged on the top of the extrusion box, a screw mechanism extending toward the cutting machine and used for extruding BMC is arranged in the extrusion box, the screw mechanism on the extrusion support is driven to rotate by a screw driving mechanism, so that the BMC raw material extends along the axial direction of the screw mechanism through the discharging component to be extruded toward the cutting machine, and a screw mechanism for cutting is arranged in the cutting machine. The cutting knife for BMC extruded raw materials is driven by a cutting drive mechanism to rotate and cut. The cutting machine is connected to one end of the packaging machine, and a first conveying mechanism for conveying the cut BMC to the packaging machine is provided in the cutting machine. The packaging machine is provided with an unwinding mechanism for transmitting the packaging film, a packaging mechanism for packaging the film on the BMC material, and a rotary cutting mechanism for cutting the packaging film. The packaging machine is provided with a second conveying mechanism. The second conveying mechanism and the rotary cutting mechanism are controlled by a main controller to perform synchronous and continuous actions. The end of the packaging machine away from the cutting machine is connected to a metal detector for detecting the packaged BMC material.

[0008] Further in the above description, the screw mechanism includes a first driving rod, a second driving rod, a first rotating rod and a second rotating rod, the ends of the first driving rod, the second driving rod, the first rotating rod and the second rotating rod are installed in the extrusion box through a bearing seat, the axial ends of the first driving rod and the second driving rod extend toward the discharge assembly, and the two ends of the first driving rod and the second driving rod are respectively provided with forward spiral blades and reverse spiral blades, the axial ends of the first rotating rod and the second rotating rod extend toward the discharge assembly through the discharge port, and the outer surfaces of the first rotating rod and the second rotating rod are provided with first spiral blades and second spiral blades extending spirally along the axial direction.

[0009] Optionally, a detachable extrusion base is provided at the bottom of the extrusion box, and a jacking mechanism for driving the extrusion base to rise and fall is provided in the extruder, the jacking mechanism includes two horizontally arranged sliding seats, two cross-arranged jacking connecting rods and a mounting top plate for connecting the extrusion base, the sliding seat is installed in the extruder through a sliding member, one end of the jacking connecting rod is hinged to a sliding seat, and the other end of the jacking connecting rod is hinged to the mounting top plate, and a driving component for driving the two sliding seats to move closer to or away from each other is provided in the extruder, so that the two jacking connecting rods can lift or lower the extrusion base through the mounting top plate under the sliding of the two sliding seats.

[0010] Further in the above description, the first drive rod, the second drive rod, the first rotating rod and the second rotating rod are all connected with mutually meshing synchronous gears at one end close to the screw drive mechanism, the screw drive mechanism is provided with two groups, and the two groups of screw drive mechanisms include a screw drive motor and a reducer, the output end of the screw drive motor is connected to the input end of the reducer, and the first drive rod or the second drive rod is coaxially connected to the output end of a reducer.

[0011] Further in the above description, the discharge assembly includes a pressurized feed cylinder and a discharge pipe, one end of the pressurized feed cylinder is connected to one side of the extrusion box, and the other end of the pressurized feed cylinder is connected to one end of the discharge pipe, and the discharge end of the discharge pipe extends outward to connect with the cutting machine.

[0012] Specifically, one end of the discharge cylinder close to the pressurized feeding cylinder is trumpet-shaped and gradually decreases in size, and the end of the discharge cylinder away from the pressurized feeding cylinder forms a discharge end extending and expanding outward.

[0013] Further in the above description, the cutting drive mechanism includes a cutting support frame, a rotating seat and a cutting motor. The cutting support frame is installed in the cutting machine, and an extrusion through-hole connected to the discharge pipe is opened on the cutting support frame. One end of the cutting knife is connected to the rotating seat. The rotating seat is installed on the cutting support frame. The cutting motor is installed on the cutting support frame, and the output shaft of the cutting motor is coaxially connected to the rotating seat, so that the cutting motor can drive the cutting knife to rotate and cut the material passing through the extrusion through-hole.

[0014] Further in the above description, the first conveying mechanism is composed of a first weighing conveyor line and a first transfer conveyor line, the first weighing conveyor line and the first transfer conveyor line are installed in the cutting machine in sequence, the cutting machine is provided with a cutting controller, the cutting controller is electrically connected to the first weighing conveyor line through a first weighing module, and the cutting machine is provided with a fixed-length measuring sensor for measuring the length of the extruded BMC material, and the fixed-length measuring sensor is installed on the cutting support frame through an adjusting rod.

[0015] Further in the above description, the unwinding mechanism is installed at one end of the packaging machine close to the cutting machine, and the unwinding mechanism includes a winding shaft for winding the packaging film, a film feeding and coating roller and a mold supporting roller. The winding shaft allows the wound packaging film to pass through the film feeding and coating roller and the mold supporting roller and enter the packaging mechanism through the rotation of the unwinding motor. A fixed plate for installing the packaging mechanism is provided on the packaging machine. Two groups of packaging mechanisms are provided, and both groups of packaging mechanisms include a flange support, a mounting support, an active traction wheel and a driven traction wheel. The mounting support is connected to the fixed plate through the flange support, and the active traction wheel and the driven traction wheel are respectively installed on the mounting support through a driving shaft and an eccentric shaft. A packaging motor for driving the active traction wheel to rotate is provided on the mounting support, thereby pressing and driving the film to package the BMC material through the active traction wheel and the driven traction wheel.

[0016] Further in the above description, the second conveying mechanism includes a packaging conveyor line, a second transfer conveyor line and a second weighing conveyor line which are sequentially installed on the packaging machine, the peeling and cutting mechanism is installed on the packaging machine, and the peeling and cutting mechanism is located between the packaging conveyor line and the second transfer conveyor line, the peeling and cutting mechanism includes a supporting frame, an upper rotating shaft, a lower rotating shaft, an upper cutting knife arranged on the upper rotating shaft and a lower cutting knife arranged on the lower rotating shaft, the supporting frame is installed on the packaging machine, the lower rotating shaft is installed on the supporting frame through a side plate, a bearing slider is connected to the side plate through a lifting slide groove, the upper rotating shaft is rotatably connected to the bearing slider and can be slidably adjusted along the lifting slide groove, a pre-tightening mechanism for adjusting the bearing slider to move along the lifting slide groove is provided on the side plate, the adjacent ends of the upper rotating shaft and the lower rotating shaft are respectively connected with a first gear and a second gear, the first gear and the second gear are meshedly connected so that they can perform synchronous rotation, and one end of the lower rotating shaft is connected with a peeling drive motor through the side plate.

[0017] Further in the above description, the pre-tensioning mechanism includes a spring pressure block and a compression spring. The spring pressure block is paired and connected with the lifting slide groove. The compression spring is arranged between the spring pressure block and the bearing slider. The side plate is connected with a pressure adjusting screw through the mounting plate. One end of the pressure adjusting screw passes through the mounting plate and is pressed on the spring pressure block.

[0018] Further in the above description, the metal detector includes a detection frame and a metal detector arranged on the detection frame, the metal detector is installed at one end of the detection frame close to the packaging machine, and a conductive detection opening is formed inside the metal detector, a unloading conveyor belt is arranged on the detection frame, one end of the unloading conveyor belt passes through the detection opening and is connected with the discharge end of the packaging machine, and a unloading bracket is connected to the end of the detection frame away from the packaging machine, and a unloading cylinder is connected to the unloading bracket, the telescopic end of the unloading cylinder extends to the unloading conveyor belt and is connected to a unloading push plate, the BMC material passing through the packaging machine is conveyed by the unloading conveyor belt through the detection opening for metal detection, and under the transmission of the unloading conveyor belt, the unloading push plate is driven by the telescopic end of the unloading cylinder to push the BMC material on the unloading conveyor belt to unload.

[0019] The beneficial effects of the present invention are as follows: the extruder is used to extrude and mold the BMC raw material, so that the BMC enters the cutting machine after extrusion, and the cutting drive mechanism drives the cutting knife to cut the BMC material according to the demand, so that it enters the second conveying mechanism of the packaging machine under the transmission of the first conveying mechanism, and under the transmission of the second conveying mechanism, the unwinding mechanism unwinds the packaging film and the BMC material is packaged into a film through the packaging mechanism, so that the subsequent rotary cutting mechanism performs synchronous rotation according to the movement of the second conveying mechanism, and can cut the packaged packaging film, and the screw driving mechanism can realize the full and uniform mixing and efficient extrusion of the BMC raw material, so that the material can be extruded. The process is more uniform and stable, thereby improving the uniformity of extrusion flow and extrusion force, reducing the continuous accumulation and clogging of raw materials in the extruder, improving the stability and reliability of extrusion, and further enhancing the mixing effect and extrusion efficiency of raw materials. Through the control of the main controller, the second conveying mechanism and the rotary cutting mechanism can perform synchronous and continuous actions to ensure the stability and continuity of the packaging process, so that under the transmission of the second conveying mechanism, the rotary cutting mechanism rotates synchronously and cuts the packaging film efficiently, so that the conveying, packaging and cutting can work continuously, solving the problem of slow cutting action rhythm, improving the continuity of packaging, and improving the overall efficiency of the BMC extrusion packaging production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional schematic diagram of the overall connection structure of this embodiment;

[0021] Figure 2 This is a schematic diagram of the overall connection from a front view of this embodiment;

[0022] Figure 3 is a three-dimensional diagram of the extruder in this embodiment;

[0023] Figure 4 Schematic diagram of the connection structure of the screw mechanism in this embodiment;

[0024] Figure 5 This is a schematic diagram of the internal structure of the extrusion box in this embodiment;

[0025] Figure 6 is a three-dimensional diagram of the cutting machine in this embodiment;

[0026] Figure 7 Schematic diagram of the internal structure of the cutting machine in this embodiment;

[0027] Figure 8 is a three-dimensional diagram of the packaging machine in this embodiment;

[0028] Fig. 9 Schematic diagram of the structure of the packaging mechanism in this embodiment;

[0029] Fig.10 Schematic diagram of the structure of the rotary cutting mechanism in this embodiment;

[0030] Fig.11 Schematic diagram of the structure of the metal detector in this embodiment;

[0031] The reference numerals in the figure are respectively:

[0032] 100-extruder, 101-extrusion support, 102-extrusion box, 103-hopper, 104-screw mechanism, 1041-first driving rod, 1042-second driving rod, 1043-first rotating rod, 1044-second rotating rod, 1045-forward spiral blade, 1046-reverse spiral blade, 1047-first spiral blade, 1048-second spiral blade, 105-extrusion base, 106-lifting mechanism, 107-synchronous gear, 108-screw drive motor, 109-reducer, 110-pressurized feeding cylinder, 111-discharging pipe;

[0033] 200-cutting machine, 201-cutting knife, 202-cutting support frame, 203-rotating seat, 204-cutting motor, 205-extrusion through hole, 206-first weighing conveyor line, 207-first transfer conveyor line, 208-cutting controller, 209-fixed length measurement sensor;

[0034] 300-packaging machine, 301-main controller, 302-rolling shaft, 303-flange support, 304-mounting support, 305-active traction wheel, 306-driven traction wheel, 307-packaging conveyor line, 308-second transfer conveyor line, 309-second weighing conveyor line, 310-peeling cutting mechanism, 3101-support frame, 3102-upper rotating shaft, 3103-lower rotating shaft, 3104-upper cutter, 3105-lower cutter, 3106-first gear, 3107-second gear, 311-side plate, 312-lifting slide, 313-bearing slider, 314-spring pressure block, 315-compression spring, 316-pressure adjusting screw, 317-peeling drive motor;

[0035] 400-metal detector, 401-detection frame, 402-metal detector, 403-detection opening, 404-unloading conveyor belt, 405-unloading bracket, 406-unloading cylinder, 407-unloading push plate. DETAILED DESCRIPTION

[0036] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0037] In this embodiment, refer to Figure 1-Figure 11 The BMC extrusion and packaging integrated production line implemented in the present invention comprises an extruder 100 for BMC extrusion, a cutting machine 200 for cutting BMC and a packaging machine 300 for packaging the cut BMC. The extruder 100 comprises an extrusion support 101 and an extrusion box 102 arranged on the extrusion support 101. One end of the extrusion box 102 is connected with the cutting machine 200 through a discharge component, and a hopper 103 for introducing BMC raw materials is arranged on the top of the extrusion box 102. A screw mechanism 104 extending toward the cutting machine 200 and used for extruding BMC is arranged in the extrusion box 102. The screw mechanism 104 is driven to rotate by a screw driving mechanism on the extrusion support 101, so that the BMC raw materials extend along the axial direction of the screw mechanism 104 through the discharge component to be extruded toward the cutting machine 200. The cutting machine 200 is provided with a cutting knife 201 for cutting the BMC extruded raw material. The cutting knife 201 is driven by a cutting drive mechanism to rotate and cut. The cutting machine is connected to one end of the packaging machine 300, and the cutting machine is provided with a first conveying mechanism for conveying the cut BMC to the packaging machine 300. The packaging machine 300 is provided with a reeling mechanism for transmitting the packaging film, a packaging mechanism for packaging the film on the BMC material, and a rotary cutting mechanism 310 for cutting the packaging film. The packaging machine 300 is provided with a second conveying mechanism. The second conveying mechanism and the rotary cutting mechanism 310 are controlled by the main controller 301 to perform synchronous and continuous actions. The end of the packaging machine 300 away from the cutting machine 200 is connected to a metal detector 400 for detecting the packaged BMC material.

[0038] Reference Figure 3-Figure 5 The screw mechanism 104 includes a first driving rod 1041, a second driving rod 1042, a first rotating rod 1043 and a second rotating rod 1044. The ends of the first driving rod 1041, the second driving rod 1042, the first rotating rod 1043 and the second rotating rod 1044 are installed in the extrusion box 102 through a bearing seat. The axial ends of the first driving rod 1041 and the second driving rod 1042 extend toward the discharge assembly, and the two ends of the first driving rod 1041 and the second driving rod 1042 are respectively provided with a forward spiral blade 1045 and a reverse spiral blade 1046. The axial ends of the first rotating rod 1043 and the second rotating rod 1044 extend toward the discharge assembly through the discharge port, and the outer surfaces of the first rotating rod 1043 and the second rotating rod 1044 are provided with a first spiral blade 1047 and a second spiral blade 1048 extending spirally along the axial direction.

[0039] Reference Figure 4 The first driving rod 1041, the second driving rod 1042, the first rotating rod 1043 and the second rotating rod 1044 are all connected with mutually meshing synchronous gears 107 at one end close to the screw driving mechanism. The screw driving mechanism is provided with two groups, and both groups of screw driving mechanisms include a screw driving motor 108 and a reducer 109. The output end of the screw driving motor 108 is connected to the input end of the reducer 109, and the first driving rod 1041 or the second driving rod 1042 is coaxially connected to the output end of a reducer 109. One group of screw driving mechanisms drives one first driving rod 1041 or one second driving rod 1042.

[0040] Specifically, the spiral directions of the first spiral blade 1047 and the second spiral blade 1048 are arranged in opposite directions, so as to further improve the mixing and stirring of the raw materials and improve the subsequent extrusion quality, and the forward spiral blade 1045 is arranged at one end of the first drive rod 1041 and the second drive rod 1042 close to the screw drive mechanism, and the reverse spiral blade 1046 is arranged at one end of the first drive rod 1041 and the second drive rod 1042 close to the discharge component, so that under the reverse extrusion of the reverse spiral blade 1046, the raw materials accumulated in the discharge component can be reversely extruded, thereby reducing the blockage caused by the accumulation of raw materials at the discharge port of the extruder 100.

[0041] Optionally, in some embodiments, reference Figure 5A detachable extrusion base 105 is provided at the bottom of the extrusion box 102, and a lifting mechanism 106 for driving the extrusion base 105 to rise and fall is provided in the extruder 100. The lifting mechanism 106 includes two horizontally arranged sliding seats, two cross-arranged lifting connecting rods and a mounting top plate for connecting the extrusion base 105. The sliding seat is installed in the extruder 100 through a sliding member, one end of the lifting connecting rod is hinged to a sliding seat, and the other end of the lifting connecting rod is hinged to the mounting top plate. A driving component for driving the two sliding seats to move closer to or away from each other is provided in the extruder 100, so that the two lifting connecting rods can lift or lower the extrusion base 105 through the mounting top plate under the sliding of the two sliding seats.

[0042] Reference Figure 3 and Figure 6 The discharge assembly includes a pressurized feed cylinder 110 and a discharge pipe 111. One end of the pressurized feed cylinder 110 is connected to one side of the extrusion box 102, and the other end of the pressurized feed cylinder 110 is connected to one end of the discharge pipe 111. The discharge end of the discharge pipe 111 extends outward and is connected to the cutting machine 200.

[0043] Specifically, one end of the discharge cylinder close to the pressurized feeding cylinder 110 is trumpet-shaped and gradually decreases in size, and the end of the discharge cylinder away from the pressurized feeding cylinder 110 forms a discharge end extending and expanding outward.

[0044] By setting up the pressurized feed barrel 110, the extruded raw material can flow more smoothly along the discharge path, thereby improving the efficiency and stability of material transportation. The discharge pipe 111 gradually reduces the pressure applied to the raw material from a large pressure, and conveniently extrude it from the outwardly expanding discharge end, thereby reducing the accumulation and blockage of the raw material in the discharge component and further improving the stability of extrusion.

[0045] Reference Figure 7 The cutting drive mechanism includes a cutting support frame 202, a rotating seat 203 and a cutting motor 204. The cutting support frame 202 is installed in the cutting machine, and an extrusion through hole 205 connected to the discharge pipe 111 is opened on the cutting support frame 202. One end of the cutting knife 201 is connected to the rotating seat 203. The rotating seat 203 is installed on the cutting support frame 202. The cutting motor 204 is installed on the cutting support frame 202, and the output shaft of the cutting motor 204 is coaxially connected with the rotating seat 203, so that the cutting motor can drive the cutting knife 201 to rotate and cut the material passing through the extrusion through hole 205.

[0046] Specifically, the extruder 100 extrude the BMC raw material through the screw mechanism 104, so that it passes through the discharge assembly and is extruded from the extrusion through hole 205, thereby forming BMC material. The cutting motor 204 drives the rotating seat 203 to drive the cutting knife 201 to cut the extruded BMC material.

[0047] Reference Figure 7 The first conveying mechanism is composed of a first weighing conveying line 206 and a first transfer conveying line 207. The first weighing conveying line 206 and the first transfer conveying line 207 are installed in the cutting machine in sequence. The cutting machine is provided with a cutting controller 208. The cutting controller 208 is electrically connected to the first weighing conveying line 206 through a first weighing module. The cutting machine is provided with a fixed-length measuring sensor 209 for measuring the length of the extruded BMC material. The fixed-length measuring sensor 209 is installed on the cutting support frame 202 through an adjusting rod.

[0048] Specifically, the detection position of the fixed-length measuring sensor 209 can be adjusted by the adjusting rod, so that the corresponding extrusion length can be conveniently set, and the BMC extruded raw material extruded onto the first weighing conveyor line 206 can be weighed after being weighed by the first weighing conveyor line 206, thereby further improving the quality control and length control of the BMC extruded raw material, enhancing the quality and consistency of cutting by the cutting knife 201, and improving the quality of cutting production.

[0049] Reference Figure 8 and Fig. 9 The unwinding mechanism is installed at one end of the packaging machine 300 close to the cutting machine 200, and the unwinding mechanism includes a winding shaft 302 for winding the packaging film, a film feeding and coating roller and a mold supporting roller. The winding shaft 302 rotates through the unwinding motor to make the wound packaging film pass through the film feeding and coating roller and the mold supporting roller and enter the packaging mechanism. The packaging machine 300 is provided with a fixing plate for installing the packaging mechanism. The packaging mechanism is provided with two groups, and the two groups of packaging mechanisms include a flange support 303, a mounting support The mounting support 304, the active traction wheel 305 and the driven traction wheel 306, the mounting support 304 is connected to the fixed plate through the flange support 303, the active traction wheel 305 and the driven traction wheel 306 are respectively mounted on the mounting support 304 through the driving shaft and the eccentric shaft, and the mounting support 304 is provided with a packaging motor for driving the active traction wheel 305 to rotate, so that the active traction wheel 305 and the driven traction wheel 306 press and drive the film to package the BMC material.

[0050] Specifically, two groups of packaging mechanisms are provided, and the packaging mechanisms are located at one end of the first packaging conveyor line 307, so that the unwinding mechanism wraps the film around the material to form a preliminary package, and the edge of the film is packaged under the drive of the packaging mechanism to reduce the risk of material transportation damage. The packaging motor drives the driving shaft to rotate through the gear, so that the active traction wheel 305 cooperates with the driven traction wheel 306 to press the film and drive the upper edge of the film. Two groups of packaging mechanisms are provided for pre-pressing the upper edge of the film.

[0051] Optionally, in some embodiments, the fixing plate is connected to a heating block for heating and packaging the thin film, and the heating block is arranged between the two groups of packaging mechanisms.

[0052] Reference Figure 8-Figure 10 The second conveying mechanism includes a packaging conveyor line 307, a second transfer conveyor line 308 and a second weighing conveyor line 309 which are sequentially installed on the packaging machine 300. The peeling and cutting mechanism 310 is installed on the packaging machine 300, and the peeling and cutting mechanism 310 is located between the packaging conveyor line 307 and the second transfer conveyor line 308. The peeling and cutting mechanism 310 includes a supporting frame 3101, an upper rotating shaft 3102, a lower rotating shaft 3103, an upper cutting knife 3104 arranged on the upper rotating shaft 3102 and a lower cutting knife 3105 arranged on the lower rotating shaft 3103. The supporting frame 3101 is installed on the packaging machine 300, and the lower rotating shaft 3103 is installed on the packaging machine 300 through a side plate 311. On the supporting frame 3101, a bearing slider 313 is connected to the side plate 311 through a lifting slot 312. The upper rotating shaft 3102 is rotatably connected to the bearing slider 313 and can be slidably adjusted along the lifting slot 312. A pre-tightening mechanism for adjusting the movement of the bearing slider 313 along the lifting slot 312 is provided on the side plate 311. The adjacent ends of the upper rotating shaft 3102 and the lower rotating shaft 3103 are respectively connected with a first gear 3106 and a second gear 3107. The first gear 3106 and the second gear 3107 are meshedly connected so that they can rotate synchronously. One end of the lower rotating shaft 3103 passes through the side plate 311 and is connected to a peeling drive motor 317.

[0053] Specifically, through the meshing connection between the first gear 3106 and the second gear 3107, the upper rotating shaft 3102 and the lower rotating shaft 3103 can drive the upper cutter 3104 and the lower cutter 3105 to rotate synchronously, thereby improving the accuracy and stability of the upper cutter 3104 and the lower cutter 3105 to align and cut the film.

[0054] Reference Fig.10 The pre-tightening mechanism includes a spring pressure block 314 and a compression spring 315. The spring pressure block 314 is matched with the lifting slide 312. The compression spring 315 is arranged between the spring pressure block 314 and the bearing slider 313. A pressure adjusting screw 316 is connected to the side plate 311 through the mounting plate. One end of the pressure adjusting screw 316 passes through the mounting plate and is pressed on the top of the spring pressure block 314.

[0055] Specifically, the spring pressure block 314 and the compression spring 315 are provided so that the preload force of the upper rotating shaft 3102 can be adjusted to meet the packaging requirements, thereby further improving the air tightness and cutting effect of the upper cutter 3104 and the lower cutter 3105 on the packaging film.

[0056] Reference Fig.11The metal detector 400 includes a detection frame 401 and a metal detector 402 disposed on the detection frame 401. The metal detector 402 is installed at one end of the detection frame 401 close to the packaging machine 300, and a conductive detection opening 403 is formed inside the metal detector 402. A material unloading conveyor belt 404 is disposed on the detection frame 401. One end of the material unloading conveyor belt 404 passes through the detection opening 403 and is connected to the material discharge end of the packaging machine 300. The detection frame 401 is away from the packaging machine 300. The end is connected to a material unloading bracket 405, and the material unloading bracket 405 is connected to a material unloading cylinder 406. The telescopic end of the material unloading cylinder 406 extends to the material unloading conveyor belt 404 and is connected to a material unloading push plate 407. The BMC material passing through the packaging machine 300 is transported by the material unloading conveyor belt 404 through the detection opening 403 for metal detection, and under the transmission of the material unloading conveyor belt 404, the material unloading push plate 407 is driven by the telescopic end of the material unloading cylinder 406 to push the BMC material on the material unloading conveyor belt 404 to unload.

[0057] Specifically, the packaged BMC materials can be inspected for metallic foreign matter through the metal detector 402 to improve product quality.

[0058] The specific action process in this embodiment is:

[0059] The BMC raw material is extruded, and the BMC raw material is introduced into the extrusion box 102 from the hopper 103, and the first driving rod 1041 and the second driving rod 1042 are driven simultaneously by two screw driving motors 108, so that the first driving rod 1041 and the second driving rod 1042 drive the first rotating rod 1043 and the second rotating rod 1044 to rotate synchronously through the synchronous gear 107, so that the forward spiral blades 1045 of the first driving rod 1041 and the second driving rod 1042 and the first rotating rod 1043 and the second rotating rod 1044 are The first spiral blade 1047 and the second spiral blade 1048 of 044 perform spiral extrusion on the BMC raw material, so that the BMC raw material passes through the discharge port of the extrusion box 102 and is extruded and transported to the pressurized feeding cylinder 110. At the same time, under the reverse rotation of the reverse spiral blades 1046 of the first driving rod 1041 and the second driving rod 1042, the accumulation of the BMC raw material at the discharge port of the extrusion box 102 is reduced, thereby reducing the blockage phenomenon, and the arrangement of the pressurized feeding cylinder and the discharge pipe 111 further improves the extrusion efficiency and quality;

[0060] Cutting: by connecting the extruder 100 with the cutting machine 200, the BMC material extruded by the extruder 100 passes through the extrusion through hole 205, and is weighed through the first weighing conveyor line 206. When the BMC material is extruded to the detection position of the fixed-length measuring sensor 209 on the adjusting rod, the conveying shaft of the cutting motor 204 drives the rotating seat 203 to drive the cutting knife 201 to cut the BMC material, and the cut BMC material is transported outward through the first transfer conveyor line 207.

[0061] Packaging, connect the packaging conveyor line 307 of the packaging machine 300 with the first transfer conveyor line 207, so that the BMC material cut by air enters the packaging conveyor line 307, and drives the coil shaft 302 to unwind the film through the unwinding motor, so that the film passes through the film feeding and coating roller and the mold supporting roller, and is driven by the packaging mechanism to descend and be wrapped on the cut BMC material, and enters and passes through the rotary cutting mechanism under the transmission of the packaging conveyor line 307, and the rotary cutting drive motor 317 is controlled by the main controller to drive the lower rotating shaft 3103 to rotate, and the upper rotating shaft 3102 is rotated synchronously through the meshing first gear 3106 and the second gear 3107, so as to improve the accuracy and stability of the upper cutter 3104 and the lower cutter 3105 and the cutting of the film, and the rotation of the upper and lower rotating shafts 3103 is synchronized with the packaging conveyor line 307, so that the conveying, packaging and cutting can be carried out continuously, and are transmitted to the next process through the second transfer conveyor line 308 and the second weighing conveyor line 309;

[0062] Detect unloading, connect the unloading conveyor belt 404 with the second weighing conveyor line 309, and convey the packaged BMC material through the detection opening 403 by the unloading conveyor belt 404 for metal foreign matter detection, and move to the unloading station under the transmission of the unloading conveyor belt 404, and drive the unloading push plate 407 through the unloading cylinder 406 to push the BMC material on the unloading conveyor belt 404 to unload, thereby improving the overall efficiency of the BMC extrusion packaging production line.

[0063] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention is disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent changes and modifications made to the above embodiments according to the technology of the present invention are within the scope of the technical solution of the present invention without departing from the content of the technical solution of the present invention.

Claims

1. The BMC extrusion and packaging integrated production line includes an extruder for BMC extrusion, a cutting machine for cutting BMC, and a packaging machine for packaging the cut BMC, and is characterized by: The extruder comprises an extrusion support and an extrusion box arranged on the extrusion support, one end of the extrusion box is connected with the cutter through a discharge assembly, and a hopper for introducing BMC raw materials is arranged on the top of the extrusion box, a screw mechanism extending toward the cutter and used for extruding BMC is arranged in the extrusion box, the screw mechanism is driven to rotate by a screw driving mechanism on the extrusion support, so that the BMC raw material extends along the axial direction of the screw mechanism through the discharge assembly and is extruded toward the cutter, and a cutting knife for cutting the BMC extruded raw material is arranged in the cutter, and the cutting knife is driven to rotate by the cutting driving mechanism The cutting machine is connected to one end of the packaging machine, and the cutting machine is provided with a first conveying mechanism for conveying the cut BMC to the packaging machine, the packaging machine is provided with a reeling mechanism for transmitting the packaging film, a packaging mechanism for packaging the film on the BMC material and a rotary cutting mechanism for cutting the packaging film, and the packaging machine is provided with a second conveying mechanism, the second conveying mechanism and the rotary cutting mechanism are synchronously and continuously moved by the control of the main controller, and the end of the packaging machine away from the cutting machine is connected with a metal detector for detecting the packaged BMC material.

2. According to claim 1, the BMC extrusion packaging integrated production line is characterized by: The screw mechanism includes a first driving rod, a second driving rod, a first rotating rod and a second rotating rod. The ends of the first driving rod, the second driving rod, the first rotating rod and the second rotating rod are installed in the extrusion box through a bearing seat. The axial ends of the first driving rod and the second driving rod extend toward the discharge assembly, and the two ends of the first driving rod and the second driving rod are respectively provided with forward spiral blades and reverse spiral blades. The axial ends of the first rotating rod and the second rotating rod extend toward the discharge assembly through the discharge port, and the outer surfaces of the first rotating rod and the second rotating screw are provided with first spiral blades and second spiral blades extending spirally along the axial direction.

3. According to claim 2, the BMC extrusion packaging integrated production line is characterized in that: The first driving rod, the second driving rod, the first rotating rod and the second rotating rod are all connected with mutually meshing synchronous gears at one end close to the screw driving mechanism. The screw driving mechanism is provided with two groups, and the two groups of screw driving mechanisms include a screw driving motor and a reducer. The output end of the screw driving motor is connected to the input end of the reducer, and the first driving rod or the second driving rod is coaxially connected to the output end of a reducer.

4. The BMC extrusion packaging integrated production line according to claim 3 is characterized by: The discharge assembly includes a pressurized feed cylinder and a discharge pipe, one end of the pressurized feed cylinder is connected to one side of the extrusion box, and the other end of the pressurized feed cylinder is connected to one end of the discharge pipe, and the discharge end of the discharge pipe extends outward and is connected to the cutting machine.

5. The BMC extrusion packaging integrated production line according to claim 4 is characterized by: The cutting drive mechanism includes a cutting support frame, a rotating seat and a cutting motor. The cutting support frame is installed in the cutting machine, and an extrusion through-hole connected to the discharge pipe is opened on the cutting support frame. One end of the cutting knife is connected to the rotating seat, and the rotating seat is installed on the cutting support frame. The cutting motor is installed on the cutting support frame, and the output shaft of the cutting motor is coaxially connected to the rotating seat, so that the cutting motor can drive the cutting knife to cut the material passing through the extrusion through-hole.

6. The BMC extrusion packaging integrated production line according to claim 5, characterized in that: The first conveying mechanism is composed of a first weighing conveyor line and a first transfer conveyor line, which are installed in the cutting machine in sequence. The cutting machine is provided with a cutting controller, which is electrically connected to the first weighing conveyor line through a first weighing module. The cutting machine is provided with a fixed-length measuring sensor for measuring the length of the extruded BMC material, and the fixed-length measuring sensor is installed on the cutting support frame through an adjusting rod.

7. The BMC extrusion packaging integrated production line according to claim 1 is characterized by: The unwinding mechanism is installed at one end of the packaging machine close to the cutting machine, and the unwinding mechanism includes a winding shaft, a film feeding and coating roller and a mold supporting roller for winding the packaging film. The winding shaft makes the wound packaging film pass through the film feeding and coating roller and the mold supporting roller and enter the packaging mechanism through the rotation of the unwinding motor. A fixing plate for installing the packaging mechanism is provided on the packaging machine. Two groups of packaging mechanisms are provided, and both groups of packaging mechanisms include a flange support, a mounting support, an active traction wheel and a driven traction wheel. The mounting support is connected to the fixing plate through the flange support. The active traction wheel and the driven traction wheel are respectively installed on the mounting support through a driving shaft and an eccentric shaft. A packaging motor for driving the active traction wheel to rotate is provided on the mounting support, so that the film is pressed and driven by the active traction wheel and the driven traction wheel to package the BMC material.

8. The BMC extrusion packaging integrated production line according to any one of claims 1 to 7, characterized in that: The second conveying mechanism includes a packaging conveyor line, a second transfer conveyor line and a second weighing conveyor line which are sequentially installed on the packaging machine, the peeling and cutting mechanism is installed on the packaging machine, and the peeling and cutting mechanism is located between the packaging conveyor line and the second transfer conveyor line, the peeling and cutting mechanism includes a supporting frame, an upper rotating shaft, a lower rotating shaft, an upper cutting knife arranged on the upper rotating shaft and a lower cutting knife arranged on the lower rotating shaft, the supporting frame is installed on the packaging machine, the lower rotating shaft is installed on the supporting frame through a side plate, a bearing slider is connected to the side plate through a lifting slide groove, the upper rotating shaft is rotatably connected to the bearing slider and can be slidably adjusted along the lifting slide groove, a pre-tightening mechanism for adjusting the bearing slider to move along the lifting slide groove is provided on the side plate, the adjacent ends of the upper rotating shaft and the lower rotating shaft are respectively connected with a first gear and a second gear, the first gear and the second gear are meshedly connected so that they can perform synchronous rotation, and one end of the lower rotating shaft is connected with a peeling drive motor through the side plate.

9. The BMC extrusion packaging integrated production line according to claim 8, characterized in that: The pre-tightening mechanism includes a spring pressure block and a compression spring. The spring pressure block is matched and connected with the lifting slide groove. The compression spring is arranged between the spring pressure block and the bearing slider. The side plate is connected with a pressure adjusting screw through the mounting plate. One end of the pressure adjusting screw passes through the mounting plate and is pressed on the spring pressure block.

10. The BMC extrusion packaging integrated production line according to claim 8, characterized in that: The metal detector comprises a detection frame and a metal detector arranged on the detection frame. The metal detector is installed at one end of the detection frame close to the packaging machine, and a conductive detection opening is formed inside the metal detector. A feeding conveyor belt is arranged on the detection frame. One end of the feeding conveyor belt passes through the detection opening and is connected with the discharging end of the packaging machine. A feeding bracket is connected to the end of the detection frame away from the packaging machine. A feeding cylinder is connected to the feeding bracket. The telescopic end of the feeding cylinder extends to the feeding conveyor belt and is connected to a feeding push plate. The BMC material passing through the packaging machine is conveyed by the feeding conveyor belt through the detection opening for metal detection. Under the transmission of the feeding conveyor belt, the feeding push plate is driven by the telescopic end of the feeding cylinder to push the BMC material on the feeding conveyor belt to be discharged.

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