Compression molding machine capable of quantitatively mixing granules

Abstract

The invention relates to the technical field of plastic processing, and discloses a compression molding machine capable of quantitatively mixing granules, which comprises a main body, a pneumatic compression molding mechanism, an automatic synchronous demolding mechanism and a quantitative mixing and conveying mechanism, a table top is fixedly arranged at the top of the main body, a pair of side plates is fixedly arranged on each of the two sides of the top of the table top, the side plates are perpendicular to the table top, and a top plate is fixedly arranged at the tops of the side plates. According to the compression molding machine with the particle quantitative mixing function, rapid compression molding of plastic is achieved through the pneumatic compression molding mechanism, the compression molding efficiency is improved, after compression molding is completed, the compression molding mechanism is started to drive the automatic synchronous demolding mechanism to achieve automatic demolding of a workpiece, an operator is prevented from being scalded during manual demolding, safety is improved, and the labor intensity of workers is relieved. And after demolding, the automatic synchronous demolding mechanism drives the quantitative mixing and conveying mechanism to realize automatic and accurate filling of materials, so that workpiece deformation caused by inaccurate material adding amount during compression molding is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of plastic processing, in particular to a compression molding machine with quantitative mixing of particles. Background Art

[0002] Compression molding, also known as compression molding, is a plastic processing method that is particularly suitable for manufacturing plastic products with complex shapes and precise dimensions. Compression molding is a process in which pressure is applied to the mold to fill the mold cavity with heated and softened plastic material, and the plastic product is formed into the desired shape after cooling. This method is mainly suitable for thermoplastics, and is also used for the molding of some thermosetting plastics. Compression molding molds are widely used in packaging, daily necessities, automotive parts, electronic appliances and industrial products to produce various plastic products such as plastic containers, cups, automotive parts, electronic housings, etc. For example, plastic cups, containers, boxes, plastic pallets and other products can be produced by compression molding molds.

[0003] Compression molding requires the use of a compression molding machine, which is a machine that heats and softens plastic or rubber materials and then molds them into the desired shape through pressure. According to different processing methods and uses, compression molding machines can be divided into many types, such as hot presses, cold presses, filter presses, etc. Among them, the plastic pallet compression molding machine (also known as plastic pallet molding machine, plastic pallet hydraulic press) is a device specially used to produce compression-molded plastic pallets, and is also a good plastic recycling equipment.

[0004] The existing compression molding machine has low compression molding efficiency, and most of the loading and unloading operations are done manually, which is prone to burns and safety hazards. In addition, the amount of material added manually is inaccurate, which can easily cause deformation of the workpiece during compression molding. Therefore, a compression molding machine with quantitative mixing of particles is proposed. Summary of the invention

[0005] The present invention aims to solve the technical problems that the existing compression molding machines have low compression molding efficiency, and most of the loading and unloading operations are done manually, which is prone to burns and poses a safety hazard. In addition, the manual addition of materials is inaccurate, which easily leads to deformation of the workpiece during compression molding. A compression molding machine with quantitative mixing of particles is provided.

[0006] The technical solution adopted by the present invention to solve its technical problem is: A compression molding machine with quantitative mixing of particles, comprising a main body, a pneumatic compression molding mechanism, an automatic synchronous demoulding mechanism and a quantitative mixing and feeding mechanism; A table is fixedly provided on the top of the main body, a pair of side panels are fixedly provided on both sides of the top of the table, the side panels are vertically provided to the table, a top panel is fixedly provided on the top of the side panels, the pneumatic compression molding mechanism is provided between the table and the bottom of the top panel, a left slot is provided on the lower side of the left side panel, the quantitative mixing and feeding mechanism is provided on the lower side of the left slot, a right slot is provided on the lower side of the right side panel, the automatic synchronous demoulding mechanism is provided between the left slot and the inside of the main body, and a plurality of bases are fixedly provided on the bottom of the main body. When in use, the pneumatic compression molding mechanism is used to realize rapid compression molding of plastics, thereby improving compression molding efficiency. After compression molding is completed, the compression molding mechanism is started to drive the automatic synchronous demoulding mechanism to realize automatic demoulding of the workpiece, thereby avoiding burns to the operator during manual demoulding and improving safety. After demoulding, the quantitative mixing and feeding mechanism is driven by the automatic synchronous demoulding mechanism to realize automatic and accurate filling of materials, thereby avoiding deformation of the workpiece due to inaccurate material addition during compression molding.

[0007] Furthermore, the pneumatic compression molding mechanism includes a cylinder, the cylinder is fixedly arranged at the top center of the top plate, the output end of the cylinder is vertically downward, the output end of the cylinder is connected to a vertical rod, the bottom end of the vertical rod extends to the lower side of the top plate, the vertical rod is arranged vertically with the top plate, a movable plate is arranged at the bottom of the vertical rod, a pair of guide rods are symmetrically arranged on both sides of the top of the movable plate, the guide rods are arranged parallel to the vertical rods, and the top ends of the guide rods extend to the upper side of the top plate. When compression molding, the cylinder is started to move the vertical rod downward, driving the movable plate at its bottom to move downward.

[0008] Furthermore, a movable mold is fixedly arranged at the bottom of the movable plate, a fixed mold is fixedly arranged at the top center of the table, a compression molding groove is opened at the top of the fixed mold, the movable mold is located directly above the compression molding groove, the shape and size of the movable mold match the compression molding groove, a plurality of protrusions are evenly arranged at the bottom of the movable mold, a plurality of bottom grooves are evenly arranged at the bottom of the compression molding groove, and the number and position of the protrusions match the number and position of the bottom grooves. When the movable plate moves downward, it drives the movable mold to move downward, so that the movable mold is stuck in the compression molding groove at the top of the fixed mold, thereby applying pressure to the material inside the compression molding groove, so that the material forms a workpiece along the contour of the protrusions and bottom grooves between the movable mold and the compression molding groove, thereby realizing rapid compression molding of the workpiece.

[0009] Furthermore, a plurality of positioning posts are fixedly arranged on the outer side of the movable mold, the positioning posts are vertically arranged with the bottom of the movable plate, a plurality of positioning holes are opened on the top edge of the fixed mold, the positioning holes are located directly below the positioning posts, and the depth and diameter of the positioning holes match the height and diameter of the positioning posts. When the movable mold moves downward, the positioning posts are driven to move downward, so that the positioning posts are stuck in the positioning holes on the top edge of the fixed mold, thereby limiting the position of the slave mold and the fixed mold in the horizontal direction, and avoiding misalignment between the slave mold and the fixed mold during compression molding.

[0010] Furthermore, the automatic synchronous demolding mechanism includes a lever switch, which is fixedly arranged on the top inner wall of the side plate on the right side, and a baffle is fixedly arranged on the right edge of the movable plate. A plurality of top grooves are evenly arranged at the bottom of the compression molding groove, and a push rod is movably arranged at the inner bottom of the top groove, and a push plate is fixedly connected to the bottom of the push rod. An inner groove is arranged at the bottom center of the fixed mold, and a through groove is arranged at the top center of the table, and the push plate is movably arranged between the inner groove and the through groove. An electric lifting rod is connected to the bottom of the push plate, and the bottom fixed end of the electric lifting rod is vertically connected to the inner bottom of the main body, and the electric lifting rod is electrically connected to the lever switch. When the movable plate moves downward, it drives the baffle plate to move upward. When the baffle plate moves, the lever switch is pushed downward, so that the electric lifting rod is shortened during the compression molding process and the ejector rod is retracted into the top groove. When the compression molding is completed, the movable plate moves upward, and the baffle plate drives the paddle switch upward, so that the electric lifting rod is raised, driving the push plate to move upward, and the ejector rod moves toward the top of the top groove, thereby generating an upward thrust on the workpiece inside the compression molding groove, and demolding the molded workpiece.

[0011] Furthermore, the inner side wall of the top groove is evenly provided with a plurality of slide grooves, a block is slidably provided inside the slide groove, a movable push rod is vertically connected between the block and the inner wall of the slide groove, a spring is provided outside the movable push rod, and the two ends of the spring are respectively connected to the block and the inner side wall of the slide groove, the top of the block is arranged in a plane, the block is provided with an inclined surface on the side facing the top rod, the bottoms of the plurality of blocks are surrounded by the inclined surface to form a conical groove, and the top of the top rod is provided with a conical portion. When the top rod moves upward, the conical portion is driven to move upward, and when the conical portion moves upward into the conical groove, a thrust in the direction of the movable push rod is generated on the block, so that the block enters the inside of the slide groove during demoulding, the spring is compressed, and an elastic force in the opposite direction is generated, and the block is reset under the action of the elastic force during the compression molding process, and the top groove is sealed.

[0012] Furthermore, a mounting block is fixedly provided on the upper inner portion of the right slot, and a rotating rod is rotatably connected to the bottom of the mounting block, and the bottom end of the rotating rod extends through the table top to the inner bottom of the main body, and a threaded portion is provided on the lower side of the rotating rod, and a threaded sleeve is threadedly connected to the upper part of the threaded portion, and a connecting rod is fixedly connected between the threaded sleeve and the top movable end of the electric lifting rod, an outer ring is fixedly provided on the upper outer wall of the rotating rod, and a material receiving rod is fixedly provided on the outer side of the outer ring, and an electric clamp is movably provided on the other end of the material receiving rod, and the height of the outer ring matches the maximum height of the top rod. When the electric lifting rod moves upward, it drives the connecting rod upward. When the connecting rod moves upward, it drives the threaded sleeve at the other end to move upward along the threaded part, so that the threaded part connected with the threaded sleeve starts to rotate, driving the rotating rod to start rotating. When the rotating rod rotates, it drives the outer sleeve ring at its top to rotate in the direction of the fixed mold, so that the material receiving rod rotates accordingly. When the material receiving rod rotates, it drives the electric clamp to start rotating until the electric clamp rotates to the side of the workpiece that is lifted up. At this time, the formed workpiece can be clamped by the electric clamp. When compression molding is performed again, the electric lifting rod is reset, driving the rotating rod and the electric clamp to reset, thereby allowing the formed workpiece to be separated from the fixed mold. Through the above steps, automatic demolding of the workpiece is realized, which avoids burns to the operator during manual demolding and improves the safety of compression molding.

[0013] Furthermore, the quantitative mixing and feeding mechanism includes a feeding cylinder, a mounting bracket is fixedly provided between the bottom of the feeding cylinder and the right side of the top of the table, a feeding bin is fixedly provided on the left top of the feeding cylinder, a driving motor is fixedly provided at the axis center of the left end of the feeding cylinder, an infrared sensor is provided on the right side of the top of the table, the infrared sensor is located directly below the initial position of the electric clamp, the infrared sensor is electrically connected to the driving motor, a feeding shaft is provided at the output end of the driving motor, a partition is provided on the left side of the interior of the feeding cylinder, a lowering cylinder is provided at the bottom of the feeding bin, a transmission bin is formed between the lowering cylinder, the partition and the left inner wall of the feeding cylinder, a driving bevel gear is provided on the left side of the feeding shaft, a stirring shaft is provided at the axis center of the feeding bin, the bottom end of the stirring shaft is provided with a driven bevel gear, and the driven bevel gear is meshed and connected with the driving bevel gear. When the electric gripper grips the workpiece and moves to the top of the infrared sensor, the infrared sensor transmits a signal to the drive motor, causing the drive motor to drive the feed shaft to start rotating. When the feed shaft rotates, it drives the drive bevel gear to start rotating. When the drive bevel gear rotates, it drives the driven bevel gear meshing with it to start rotating, causing the stirring shaft to start rotating.

[0014] Furthermore, a plurality of stirring rods are vertically arranged on the top side wall of the stirring shaft, and a first spiral blade is arranged on the bottom side wall of the stirring rod, the diameter of which matches the lower barrel, the inner end of the feeding shaft extends to the right side of the inner part of the feeding barrel, and a second spiral blade is arranged on the outer side wall of the feeding shaft, the diameter of which matches the inner diameter of the feeding barrel. When the stirring shaft rotates, it drives the stirring rod on its top to start rotating, stirring the material inside the feeding bin, so that the material is mixed more evenly, at this time, the first spiral blade transports the material to the inside of the feeding barrel through the lower barrel, and when the feeding shaft rotates, it drives the second spiral blade on its right outer wall to start rotating, transporting the material to the right end of the feeding barrel.

[0015] Furthermore, a telescopic nozzle is provided on the inner wall of the right end of the feed barrel for sliding through a movable groove, the right end of the feed shaft is connected to an electric telescopic rod, a connecting frame is fixedly provided between the right end of the electric telescopic rod and the inner wall of the telescopic nozzle, a gravity sensor is provided on the inner bottom of the feeding bin, the gravity sensor is electrically connected to the drive motor and the electric telescopic rod, and the electric telescopic rod is electrically connected to the infrared sensor. After the infrared sensor senses the signal, it transmits the signal to the electric telescopic rod at the same time, causing the electric telescopic rod to extend, driving the connecting frame to move to the right, causing the telescopic nozzle to extend to the upper part of the compression molding groove, so that the material flows into the compression molding groove along the output end of the telescopic nozzle. When a certain amount of material is output inside the feeding bin, the gravity sensor transmits the signal to the drive motor and the electric telescopic rod, causing the drive motor to reverse and stop conveying the material. At the same time, the electric telescopic rod shortens, driving the telescopic nozzle to reset, avoiding interference between the dynamic mold and the telescopic nozzle during compression molding. Through the above steps, automatic and accurate filling of the material is achieved, avoiding deformation of the workpiece due to inaccurate material addition during compression molding.

[0016] Beneficial effects of the present invention: 1. The compression molding machine with quantitative mixing of particles of the present invention realizes rapid compression molding of plastics through a pneumatic compression molding mechanism, thereby improving compression molding efficiency. After compression molding, the compression molding mechanism is started to drive the automatic synchronous demoulding mechanism to realize automatic demoulding of the workpiece, thereby avoiding burns to the operator during manual demoulding and improving safety. After demoulding, the automatic synchronous demoulding mechanism drives the quantitative mixing and feeding mechanism to realize automatic and accurate filling of the material, thereby avoiding deformation of the workpiece due to inaccurate material addition during compression molding.

[0017] 2. The compression molding machine with quantitative mixing of particles of the present invention is provided with an automatic synchronous demoulding mechanism, which can drive the connecting rod to move upward when the electric lifting rod moves upward, and drive the threaded sleeve at the other end to move upward along the threaded portion when the connecting rod moves upward, so that the threaded portion threadedly connected with the threaded sleeve starts to rotate, driving the rotating rod to start rotating, and when the rotating rod rotates, it drives the outer sleeve ring at the top to rotate in the direction of the fixed mold, so that the material receiving rod rotates accordingly, and when the material receiving rod rotates, it drives the electric clamp to start rotating until the electric clamp rotates to one side of the workpiece that is lifted up, at which time the formed workpiece can be clamped by the electric clamp, and when compression molding is performed again, the electric lifting rod is reset, driving the rotating rod and the electric clamp to reset, thereby making the formed workpiece separate from the fixed mold, and the above steps are realized. Automatic demoulding of the workpiece is realized, and burns to the operator caused by manual demoulding are avoided, thereby improving the safety of compression molding.

[0018] 3. The compression molding machine with quantitative mixing of particles of the present invention is provided with a quantitative mixing and feeding mechanism. After the infrared sensor senses the signal, it can simultaneously transmit the signal to the electric telescopic rod, so that the electric telescopic rod extends, driving the connecting frame to move to the right, so that the telescopic nozzle extends to the upper part of the compression molding groove, so that the material flows into the compression molding groove along the output end of the telescopic nozzle. When a certain amount of material in the feeding bin is output, the gravity sensor transmits a signal to the drive motor and the electric telescopic rod, so that the drive motor reverses and stops conveying the material. At the same time, the electric telescopic rod shortens, driving the telescopic nozzle to reset, avoiding interference between the dynamic mold and the telescopic nozzle during compression molding. Through the above steps, automatic and accurate filling of the material is realized, and deformation of the workpiece due to inaccurate material addition during compression molding is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the compression molding machine with quantitative mixing of particles; Figure 2 It is a schematic diagram of the internal structure of the top tank of the compression molding machine with quantitative mixing of granules; Figure 3 It is a schematic diagram of the internal structure of the feed barrel of the compression molding machine with quantitative mixing of particles.

[0020] Description of the accompanying drawings: 1. main body; 2. base; 3. table; 4. side plate; 5. top plate; 6. cylinder; 7. vertical rod; 8. guide rod; 9. movable plate; 10. movable mold; 11. positioning column; 12. fixed mold; 13. baffle; 14. lever switch; 15. right slot; 16. infrared sensor; 17. left slot; 18. feed cylinder; 19. mounting frame; 20. top slot; 21. push rod; 22. inner slot; 23. through slot; 24. push plate; 25. electric lifting rod; 26. connecting rod; 27. threaded part; 28. threaded sleeve; 29. ​​mounting block; 3 0. Outer ring; 31. Receiving rod; 32. Electric clamp; 33. Rotating rod; 34. Block; 35. Slide; 36. Movable push rod; 37. Spring; 38. Inclined surface; 39. Conical part; 40. Feeding bin; 41. Driving motor; 42. Feeding shaft; 43. Driving bevel gear; 44. Driven bevel gear; 45. Partition; 46. Discharging barrel; 47. Stirring shaft; 48. Stirring rod; 49. Gravity sensor; 50. First spiral blade; 51. Second spiral blade; 52. Telescopic nozzle; 53. Movable slot; 54. Electric telescopic rod; 55. Connecting frame. DETAILED DESCRIPTION

[0021] The concept and technical effects of the present invention will be clearly and completely described below in conjunction with embodiments to fully understand the purpose, features and effects of the present invention.

[0022] like Figure 1-3 As shown, a compression molding machine with quantitative mixing of particles includes a main body 1, a pneumatic compression molding mechanism, an automatic synchronous demoulding mechanism and a quantitative mixing and feeding mechanism; A table top 3 is fixedly provided on the top of the main body 1, a pair of side panels 4 are fixedly provided on both sides of the top of the table top 3, the side panels 4 are vertically arranged with the table top 3, a top panel 5 is fixedly provided on the top of the side panels 4, the pneumatic compression molding mechanism is arranged between the table top 3 and the bottom of the top panel 5, a left slot 17 is provided on the lower side of the left side panel 4, the quantitative mixing and feeding mechanism is arranged on the lower inner side of the left slot 17, a right slot 15 is provided on the lower side of the right side panel 4, the automatic synchronous demoulding mechanism is arranged between the left slot 17 and the inside of the main body 1, and a plurality of bases 2 are fixedly provided on the bottom of the main body 1. When in use, the pneumatic compression molding mechanism is used to achieve rapid compression molding of the plastic, thereby improving compression molding efficiency. After compression molding is completed, the compression molding mechanism is started to drive the automatic synchronous demoulding mechanism to achieve automatic demoulding of the workpiece, thereby avoiding burns to the operator during manual demoulding and improving safety. After demoulding, the automatic synchronous demoulding mechanism drives the quantitative mixing and feeding mechanism to achieve automatic and accurate filling of the material, thereby avoiding deformation of the workpiece due to inaccurate material addition during compression molding.

[0023] The pneumatic compression molding mechanism includes a cylinder 6, which is fixedly arranged at the top center of the top plate 5, and the output end of the cylinder 6 is vertically downward. The output end of the cylinder 6 is connected to a vertical rod 7, and the bottom end of the vertical rod 7 extends to the lower side of the top plate 5. The vertical rod 7 is arranged vertically with the top plate 5. A movable plate 9 is arranged at the bottom of the vertical rod 7, and a pair of guide rods 8 are symmetrically arranged on both sides of the top of the movable plate 9. The guide rods 8 are arranged parallel to the vertical rod 7, and the top ends of the guide rods 8 extend to the upper side of the top plate 5. When the cylinder 6 is started during compression molding, the vertical rod 7 moves downward, driving the movable plate 9 at its bottom to move downward.

[0024] A movable mold 10 is fixedly arranged at the bottom of the movable plate 9, a fixed mold 12 is fixedly arranged at the top center of the table 3, a compression molding groove is provided at the top of the fixed mold 12, the movable mold 10 is located directly above the compression molding groove, the shape and size of the movable mold 10 match the compression molding groove, a plurality of protrusions are evenly arranged at the bottom of the movable mold 10, a plurality of bottom grooves are evenly arranged at the bottom of the compression molding groove, and the number and position of the protrusions match the number and position of the bottom grooves. When the movable plate 9 moves downward, it drives the movable mold 10 to move downward, so that the movable mold 10 is stuck in the compression molding groove at the top of the fixed mold 12, thereby applying pressure to the material inside the compression molding groove, so that the material forms a workpiece along the contour of the protrusions and bottom grooves between the movable mold 10 and the compression molding groove, thereby realizing rapid compression molding of the workpiece.

[0025] A plurality of positioning posts 11 are fixedly arranged on the outer side of the movable mold 10, and the positioning posts 11 are arranged vertically with the bottom of the movable plate 9. A plurality of positioning holes are opened on the top edge of the fixed mold 12, and the positioning holes are located directly below the positioning posts 11. The depth and diameter of the positioning holes match the height and diameter of the positioning posts 11. When the movable mold 10 moves downward, the positioning posts 11 are driven to move downward, so that the positioning posts 11 are stuck in the positioning holes on the top edge of the fixed mold 12, thereby limiting the position of the slave mold and the fixed mold 12 in the horizontal direction, and avoiding misalignment between the slave mold and the fixed mold 12 during compression molding.

[0026] The automatic synchronous demoulding mechanism includes a lever switch 14, which is fixedly arranged on the top inner wall of the right side panel 4, a baffle 13 is fixedly arranged on the right edge of the movable panel 9, a plurality of top grooves 20 are evenly arranged at the bottom of the compression molding groove, a push rod 21 is movably arranged at the inner bottom of the top groove 20, a push plate 24 is fixedly connected to the bottom of the push rod 21, an inner groove 22 is arranged at the bottom center of the fixed mold 12, a through groove 23 is arranged at the top center of the table 3, the push plate 24 is movably arranged between the inner groove 22 and the through groove 23, an electric lifting rod 25 is connected to the bottom of the push plate 24, a bottom fixed end of the electric lifting rod 25 is vertically connected to the inner bottom of the main body 1, and the electric lifting rod 25 is electrically connected to the lever switch 14. When the movable plate 9 moves downward, it drives the baffle 13 to move upward. When the baffle 13 moves, it pushes the lever switch 14 downward, so that the electric lifting rod 25 is shortened during the compression molding process, and the top rod 21 is retracted into the top groove 20. When the compression molding is completed, the movable plate 9 moves upward, and the baffle 13 pushes the lever switch upward, so that the electric lifting rod 25 is raised, driving the push plate 24 to move upward, so that the top rod 21 moves toward the top of the top groove 20, thereby generating an upward thrust on the workpiece inside the compression molding groove, and demolding the molded workpiece.

[0027] The inner wall of the top groove 20 is evenly provided with a plurality of slide grooves 35, and a block 34 is slidably provided inside the slide groove 35. A movable push rod 36 is vertically connected between the block 34 and the inner wall of the slide groove 35. A spring 37 is provided outside the movable push rod 36, and the two ends of the spring 37 are respectively connected to the block 34 and the inner wall of the slide groove 35. The top of the block 34 is arranged in a plane, and a slope 38 is provided on the side of the block 34 facing the push rod 21. The bottoms of the plurality of blocks 34 are surrounded by the slope 38 to form a conical groove, and the top of the push rod 21 is provided with a conical portion. When the ejector pin 21 moves upward, it drives the conical portion 39 to move upward. When the conical portion 39 moves upward into the conical groove, it generates a thrust on the block 34 toward the movable push rod 36, so that the block 34 enters the interior of the slide groove 35 during demolding. The spring 37 is compressed to generate an elastic force in the opposite direction. Under the action of the elastic force, the block 34 is reset during the compression molding process to seal the top groove 20.

[0028] A mounting block 29 is fixedly provided on the inner upper part of the right slot 15, and a rotating rod 33 is rotatably connected to the bottom of the mounting block 29, and the bottom end of the rotating rod 33 extends through the table top 3 to the inner bottom of the main body 1, and a threaded portion 27 is provided on the lower side of the rotating rod 33, and a threaded sleeve 28 is threadedly connected to the upper part of the threaded portion 27, and a connecting rod 26 is fixedly connected between the threaded sleeve 28 and the top movable end of the electric lifting rod 25, and an outer sleeve 30 is fixedly provided on the upper outer wall of the rotating rod 33, and a material receiving rod 31 is fixedly provided on the outer side of the outer sleeve 30, and an electric clamp 32 is movably provided on the other end of the material receiving rod 31, and the height of the outer sleeve 30 matches the maximum height of the top rod 21. When the electric lifting rod 25 moves upward, it drives the connecting rod 26 to move upward. When the connecting rod 26 moves upward, it drives the threaded sleeve 28 at the other end thereof to move upward along the threaded portion 27, so that the threaded portion 27 threadedly connected to the threaded sleeve 28 starts to rotate, driving the rotating rod 33 to start rotating. When the rotating rod 33 rotates, it drives the outer sleeve 30 at its top to rotate in the direction of the fixed mold 12, so that the receiving rod 31 rotates accordingly. When the receiving rod 31 rotates, it drives the electric clamp 32 to start rotating until the electric clamp 32 rotates to the side of the workpiece that is lifted up. At this time, the formed workpiece can be clamped by the electric clamp 32. When compression molding is performed again, the electric lifting rod 25 is reset, driving the rotating rod 33 and the electric clamp 32 to reset, so that the formed workpiece is separated from the fixed mold 12. Through the above steps, automatic demolding of the workpiece is realized, and burns to the operator caused by manual demolding are avoided, thereby improving the safety of compression molding.

[0029] The quantitative mixing and feeding mechanism includes a feeding cylinder 18, a mounting frame 19 is fixedly arranged between the bottom of the feeding cylinder 18 and the top right side of the table 3, a feeding bin 40 is fixedly arranged on the left top of the feeding cylinder 18, a driving motor 41 is fixedly arranged at the left end axis of the feeding cylinder 18, an infrared sensor 16 is arranged on the top right side of the table 3, the infrared sensor 16 is located directly below the initial position of the electric clamp 32, the infrared sensor 16 is electrically connected to the driving motor 41, and an output end of the driving motor 41 is provided with an output The material shaft 42, a partition 45 is provided on the left side of the interior of the feeding barrel 18, a lowering barrel 46 is provided at the bottom of the feeding bin 40, and a transmission bin is formed between the lowering barrel 46, the partition 45 and the left inner wall of the feeding barrel 18, and a driving bevel gear 43 is provided on the left outer side of the feeding shaft 42, and a stirring shaft 47 is provided at the axis of the feeding bin 40, and the bottom end of the stirring shaft 47 extends to the inside of the transmission bin, and a driven bevel gear 44 is provided at the bottom end of the stirring shaft 47, and the driven bevel gear 44 is meshed and connected with the driving bevel gear 43. When the electric clamp 32 clamps the workpiece and moves to the top of the infrared sensor 16, the infrared sensor 16 transmits a signal to the drive motor 41, so that the drive motor 41 drives the feeding shaft 42 to start rotating, and when the feeding shaft 42 rotates, it drives the driving bevel gear 43 to start rotating, and when the driving bevel gear 43 rotates, it drives the driven bevel gear 44 meshed with it to start rotating, so that the stirring shaft 47 starts rotating.

[0030] A plurality of stirring rods 48 are vertically arranged on the top side wall of the stirring shaft 47, and a first spiral blade 50 is arranged on the bottom side wall of the stirring rod 48, and the diameter of the first spiral blade 50 matches the lower barrel 46. The inner end of the feeding shaft 42 extends to the right side of the inside of the feeding barrel 18, and a second spiral blade 51 is arranged on the outer side wall of the feeding shaft 42, and the diameter of the second spiral blade 51 matches the inner diameter of the feeding barrel 18. When the stirring shaft 47 rotates, the stirring rod 48 on the top thereof is driven to start rotating, and the material inside the feeding bin 40 is stirred, so that the material is mixed more evenly. At this time, the first spiral blade 50 transports the material to the inside of the feeding barrel 18 through the lower barrel 46, and when the feeding shaft 42 rotates, the second spiral blade 51 on the right outer wall thereof is driven to start rotating, and the material is transported to the right end of the feeding barrel 18.

[0031] A telescopic nozzle 52 is slidably provided on the inner wall of the right end of the feed barrel 18 through a movable groove 53, and an electric telescopic rod 54 is connected to the right end of the feed shaft 42. A connecting frame 55 is fixedly provided between the right end of the electric telescopic rod 54 and the inner wall of the telescopic nozzle 52. A gravity sensor is provided on the inner bottom of the feeding bin 40, and the gravity sensor is electrically connected to the drive motor 41 and the electric telescopic rod 54, and the electric telescopic rod 54 is electrically connected to the infrared sensor 16. After the infrared sensor 16 senses the signal, it also transmits the signal to the electric telescopic rod 54, causing the electric telescopic rod 54 to extend, driving the connecting frame 55 to move to the right, causing the telescopic nozzle 52 to extend to the upper part of the compression molding groove, so that the material flows into the compression molding groove along the output end of the telescopic nozzle 52. When a certain amount of material is output from the feeding bin 40, the gravity sensor transmits a signal to the drive motor 41 and the electric telescopic rod 54, causing the drive motor 41 to reverse and stop conveying the material. At the same time, the electric telescopic rod 54 shortens, driving the telescopic nozzle 52 to reset, avoiding interference between the movable mold 10 and the telescopic nozzle 52 during compression molding. Through the above steps, automatic and accurate filling of the material is achieved, avoiding deformation of the workpiece due to inaccurate material addition during compression molding.

[0032] Working principle: during compression molding, the cylinder 6 is started to make the vertical rod 7 move downward, driving the movable plate 9 at its bottom to move downward. When the movable plate 9 moves downward, it drives the movable mold 10 to move downward, so that the movable mold 10 is stuck in the compression molding groove at the top of the fixed mold 12, thereby applying pressure to the material inside the compression molding groove, so that the material forms a workpiece along the protrusion and bottom groove contour between the movable mold 10 and the compression molding groove, thereby realizing rapid compression molding of the workpiece; when the movable mold 10 moves downward, it drives the positioning column 11 to move downward, so that the positioning column 11 is stuck in the positioning hole on the top edge of the fixed mold 12, thereby limiting the slave mold and the fixed mold 12 in the horizontal direction, avoiding misalignment between the slave mold and the fixed mold 12 during compression molding.

[0033] When the movable plate 9 moves downward, it drives the baffle plate 13 to move upward. When the baffle plate 13 moves, it drives the lever switch 14 downward, so that during the compression molding process, the electric lifting rod 25 is shortened and the ejector rod 21 is retracted into the interior of the top groove 20. When the compression molding is completed, the movable plate 9 moves upward, and the baffle plate 13 drives the paddle switch upward, so that the electric lifting rod 25 is raised, driving the push plate 24 to move upward, so that the ejector rod 21 moves toward the top of the top groove 20, thereby generating an upward thrust on the workpiece inside the compression molding groove, and demolding the molded workpiece. When the ejector rod 21 moves upward, it drives the tapered portion 39 to move upward. When the tapered portion 39 moves upward into the tapered groove, it generates a thrust toward the movable push rod 36 on the block 34, so that the block 34 enters the interior of the slide groove 35 during demolding, and the spring 37 is compressed to generate an elastic force in the opposite direction. Under the action of the elastic force, the block 34 is reset during the compression molding process to seal the top groove 20 When the electric lifting rod 25 moves upward, it drives the connecting rod 26 to move upward. When the connecting rod 26 moves upward, it drives the threaded sleeve 28 at the other end thereof to move upward along the threaded portion 27, so that the threaded portion 27 threadedly connected to the threaded sleeve 28 starts to rotate, driving the rotating rod 33 to start rotating. When the rotating rod 33 rotates, it drives the outer sleeve 30 at its top to rotate in the direction of the fixed mold 12, so that the receiving rod 31 rotates accordingly. When the receiving rod 31 rotates, it drives the electric clamping jaw 32 to start rotating until the electric clamping jaw 32 rotates to the side of the workpiece being lifted up. At this time, the formed workpiece can be clamped by the electric clamping jaw 32. When compression molding is performed again, the electric lifting rod 25 is reset, driving the rotating rod 33 and the electric clamping jaw 32 to reset, so that the formed workpiece is separated from the fixed mold 12. Through the above steps, automatic demolding of the workpiece is realized, and burns to the operator caused by manual demolding are avoided, thereby improving the safety of compression molding.

[0034] When the electric clamp 32 clamps the workpiece and moves to the top of the infrared sensor 16, the infrared sensor 16 transmits a signal to the drive motor 41, so that the drive motor 41 drives the feed shaft 42 to start rotating. When the feed shaft 42 rotates, it drives the driving bevel gear 43 to start rotating. When the driving bevel gear 43 rotates, it drives the driven bevel gear 44 meshing therewith to start rotating, so that the stirring shaft 47 starts rotating. When the stirring shaft 47 rotates, it drives the stirring rod 48 at the top thereof to start rotating, so as to stir the material inside the feeding bin 40, so that the material is mixed more evenly. At this time, the first spiral blade 50 transports the material to the inside of the feed barrel 18 through the lower barrel 46. When the feed shaft 42 rotates, it drives the second spiral blade 51 on its right outer wall to start rotating, so as to transport the material to the feed barrel 18. At the right end of the injection molding groove, the infrared sensor 16 senses the signal and transmits the signal to the electric telescopic rod 54 at the same time, so that the electric telescopic rod 54 extends, driving the connecting frame 55 to move to the right, so that the telescopic nozzle 52 extends to the upper part of the injection molding groove, so that the material flows into the injection molding groove along the output end of the telescopic nozzle 52. When a certain amount of material is output from the feeding bin 40, the gravity sensor transmits the signal to the drive motor 41 and the electric telescopic rod 54, so that the drive motor 41 reverses and stops conveying the material. At the same time, the electric telescopic rod 54 shortens, driving the telescopic nozzle 52 to reset, avoiding interference between the movable mold 10 and the telescopic nozzle 52 during injection molding. Through the above steps, automatic and accurate filling of the material is achieved, and deformation of the workpiece due to inaccurate material addition during injection molding is avoided.

[0035] The above embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work shall all fall within the scope of protection of the present invention.

Claims

1. A compression molding machine with quantitative mixing of particles, characterized in that: It comprises a main body (1), a pneumatic compression molding mechanism, an automatic synchronous demoulding mechanism and a quantitative mixing and feeding mechanism; A tabletop (3) is fixedly arranged on the top of the main body (1), a pair of side panels (4) are fixedly arranged on both sides of the top of the tabletop (3), the side panels (4) are arranged perpendicularly to the tabletop (3), a top panel (5) is fixedly arranged on the top of the side panels (4), the pneumatic compression molding mechanism is arranged between the bottom of the tabletop (3) and the top panel (5), a left slot (17) is opened on the lower side of the left side panel (4), the quantitative mixing and feeding mechanism is arranged on the lower side of the left slot (17), a right slot (15) is opened on the lower side of the right side panel (4), the automatic synchronous demoulding mechanism is arranged between the left slot (17) and the inside of the main body (1), and a plurality of bases (2) are fixedly arranged on the bottom of the main body (1).

2. The compression molding machine with quantitative mixing of particles according to claim 1, characterized in that The pneumatic compression molding mechanism comprises a cylinder (6), wherein the cylinder (6) is fixedly arranged at the top center of the top plate (5), the output end of the cylinder (6) is vertically downward, the output end of the cylinder (6) is connected to a vertical rod (7), the bottom end of the vertical rod (7) extends to the lower side of the top plate (5), the vertical rod (7) is arranged vertically to the top plate (5), a movable plate (9) is arranged at the bottom of the vertical rod (7), a pair of guide rods (8) are symmetrically arranged on both sides of the top of the movable plate (9), the guide rods (8) are arranged parallel to the vertical rod (7), and the top ends of the guide rods (8) extend to the upper side of the top plate (5).

3. The compression molding machine with quantitative mixing of particles according to claim 2, characterized in that A movable die (10) is fixedly arranged at the bottom of the movable plate (9), a fixed die (12) is fixedly arranged at the top center of the table top (3), a die-casting groove (13) is opened at the top of the fixed die (12), the movable die (10) is located directly above the die-casting groove (13), the shape and size of the movable die (10) match the die-casting groove (13), the bottom of the movable die (10) is evenly arranged with a plurality of protrusions, the bottom of the die-casting groove (13) is evenly arranged with a plurality of bottom grooves, and the number and position of the protrusions match the number and position of the bottom grooves.

4. The compression molding machine with quantitative mixing of granules according to claim 3, characterized in that A plurality of positioning posts (11) are fixedly arranged on the outer side of the movable mold (10), and the positioning posts (11) are vertically arranged on the bottom of the movable plate (9). A plurality of positioning holes (12) are opened on the edge of the top surface of the fixed mold (12), and the positioning holes (12) are located directly below the positioning posts (11). The depth and diameter of the positioning holes (12) match the height and diameter of the positioning posts (11).

5. The compression molding machine with quantitative mixing of granules according to claim 3, characterized in that The automatic synchronous demoulding mechanism comprises a lever switch (14), the lever switch (14) is fixedly arranged on the top inner wall of the right side plate (4), a baffle (13) is fixedly arranged on the right edge of the movable plate (9), a plurality of top grooves (20) are evenly opened at the bottom of the die-casting groove (13), a push rod (21) is movably arranged at the inner bottom of the top groove (20), and a push plate (24) is fixedly connected to the bottom of the push rod (21), and the fixed mold An inner groove (22) is provided at the bottom center of the main body (12), a through groove (23) is provided at the top center of the table top (3), the push plate (24) is movably arranged between the inner groove (22) and the through groove (23), the bottom of the push plate (24) is connected to an electric lifting rod (25), the bottom fixed end of the electric lifting rod (25) is vertically connected to the inner bottom of the main body (1), and the electric lifting rod (25) is electrically connected to the lever switch (14).

6. The compression molding machine with quantitative mixing of granules according to claim 5, characterized in that The inner wall of the top groove (20) is evenly provided with a plurality of slide grooves (35), a block (34) is slidably arranged inside the slide groove (35), a movable push rod (36) is vertically connected between the block (34) and the inner wall of the slide groove (35), a spring (37) is arranged outside the movable push rod (36), two ends of the spring (37) are respectively connected to the block (34) and the inner wall of the slide groove (35), the top of the block (34) is arranged in a plane, the block (34) is provided with an inclined surface (38) on one side facing the push rod (21), the bottoms of the plurality of blocks (34) are surrounded by the inclined surface to form a conical groove, and the top of the push rod (21) is provided with a conical portion (39).

7. The compression molding machine with quantitative mixing of granules according to claim 6, characterized in that A mounting block (29) is fixedly provided on the upper inner part of the right slot (15); a rotating rod (33) is rotatably connected to the bottom of the mounting block (29); the bottom end of the rotating rod (33) passes through the table top (3) and extends to the inner bottom of the main body (1); a threaded portion (27) is provided on the lower side of the rotating rod (33); a threaded sleeve (28) is threadedly connected to the upper part of the threaded portion (27); a connecting rod (26) is fixedly connected between the threaded sleeve (28) and the top movable end of the electric lifting rod (25); an outer sleeve (30) is fixedly provided on the upper outer wall of the rotating rod (33); a material receiving rod (31) is fixedly provided on the outer side of the outer sleeve (30); an electric clamp (32) is movably provided on the other end of the material receiving rod (31); the height of the outer sleeve (30) matches the highest height of the top rod (21) when it is lifted.

8. The compression molding machine with quantitative mixing of granules according to claim 7, characterized in that The quantitative mixing and feeding mechanism comprises a feeding cylinder (18), a mounting frame (19) is fixedly arranged between the bottom of the feeding cylinder (18) and the right side of the top of the table (3), a feeding bin (40) is fixedly arranged on the top of the left side of the feeding cylinder (18), a driving motor (41) is fixedly arranged at the axis of the left end of the feeding cylinder (18), an infrared sensor (16) is arranged on the right side of the top of the table (3), the infrared sensor (16) is located directly below the initial position of the electric clamp (32), the infrared sensor (16) is electrically connected to the driving motor (41), and a feeding device (41) is arranged at the output end of the driving motor (41). A shaft (42) is provided on the left side of the interior of the feeding cylinder (18), a partition (45) is provided on the bottom of the feeding bin (40), a transmission bin is formed between the left inner wall of the feeding cylinder (46), the partition (45) and the feeding cylinder (18), a driving bevel gear (43) is provided on the left outer side of the feeding shaft (42), a stirring shaft (47) is provided at the axis of the feeding bin (40), the bottom end of the stirring shaft (47) extends to the inside of the transmission bin, a driven bevel gear (44) is provided at the bottom end of the stirring shaft (47), and the driven bevel gear (44) is meshingly connected with the driving bevel gear (43).

9. The compression molding machine with quantitative mixing of granules according to claim 8, characterized in that A plurality of stirring rods (48) are vertically arranged on the top side wall of the stirring shaft (47), a first spiral blade (50) is arranged on the bottom side wall of the stirring rod (48), and the diameter of the first spiral blade (50) matches the diameter of the lower barrel (46), the inner end of the feed shaft (42) extends to the right side of the inside of the feed barrel (18), and a second spiral blade (51) is arranged on the outer side wall of the feed shaft (42), and the diameter of the second spiral blade (51) matches the inner diameter of the feed barrel (18).

10. The compression molding machine with quantitative mixing of granules according to claim 9, characterized in that The inner wall of the right end of the feeding cylinder (18) is provided with a telescopic nozzle (52) which slides through a movable groove (53); the right end of the feeding shaft (42) is connected to an electric telescopic rod (54); a connecting frame (55) is fixedly provided between the right end of the electric telescopic rod (54) and the inner wall of the telescopic nozzle (52); a gravity sensor (49) is provided at the inner bottom of the feeding bin (40); the gravity sensor (49) is electrically connected to the driving motor (41) and the electric telescopic rod (54); and the electric telescopic rod (54) is electrically connected to the infrared sensor (16).

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