Energy-saving and environment-friendly plastic packaging bag production equipment
By introducing a screw feeder, a melting mechanism and a melt extraction mechanism into the plastic packaging bag production equipment, the problem of low thermal efficiency during the melting and granulation of waste plastic film is solved, and a more efficient melting and smelting process is achieved.
Patent Information
- Application Number
- CN202511112137.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-08
- Publication Date
- 2025-09-19
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the prior art, the thermal efficiency and melting rate of waste plastic films during melting and granulation are low, which affects the processing efficiency.
The screw feeder, melt mechanism, material compacting mechanism and melt extraction mechanism are adopted. Through the cooperation of heating plate, pressure plate, conical piston plate and other components, the plastic sheet is ensured to be in close contact with the heating plate, the gap is reduced and the melting efficiency is improved.
It significantly improves the melting efficiency and melting efficiency of plastic sheets, shortens the loading and pressing time, and improves the overall processing efficiency.
Smart Images

Figure CN120663447A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of waste plastic recycling, in particular to energy-saving and environment-friendly plastic packaging bag production equipment. Background Art
[0002] Recycling waste plastic film into plastic packaging bags is a technology that integrates environmental protection and resource recycling. Its core process can be divided into the following steps: 1. Recycling and pretreatment; 2. Melt granulation; 3. Film blowing and processing. In the existing technology, the melt granulation of waste plastic film first requires the plastic flakes to be placed in a furnace and then heated and melted. However, due to the light weight and internal voids of the plastic flakes, the thermal efficiency is low and the melting rate is slow, which in turn affects the overall processing efficiency. Summary of the Invention
[0003] The present invention provides an energy-saving and environmentally friendly plastic packaging bag production device to solve the above-mentioned deficiencies in the prior art.
[0004] In order to achieve the above object, the present invention adopts the following technical solutions: An energy-saving and environmentally friendly plastic packaging bag production device includes a screw feeder and: A melting mechanism is installed on the top of the screw feeder and includes a heating plate with a plurality of material holes; A material compacting mechanism 1 is installed inside the melting mechanism and includes a pressing plate 1, the pressing plate 1 is connected to two telescopic smoke exhaust pipes, and a material separation net 1 is fixed to the inner wall of the bottom end of the telescopic smoke exhaust pipe; A melt extraction mechanism, which is mounted on the bottom of the heating plate and includes a conical piston plate; The second material compacting mechanism is connected to the melting mechanism and includes two mirror-imaged pressing plates. A connecting frame is fixed to the two sides of the two pressing plates that are separated from each other. The internal thread sleeves of the two connecting frames are provided with bidirectional screws. The external rotation of the bidirectional screws is connected to a mounting block. A push rod motor is fixed to the top of the mounting block. The driving mechanism is connected with the melting mechanism.
[0005] Furthermore, the melting mechanism further comprises a material box, and a material inlet is provided on the top of the material box; The bottom of the material box is connected to a material barrel, the heating plate is fixed inside the material barrel, the bottom of the material barrel is connected to a discharge hopper, and the discharge hopper is connected to the top of the screw feeder.
[0006] Furthermore, the material compacting mechanism 1 further includes a partition 1 fixed to the top of the pressure plate 1, the top of the partition 1 is sleeved with a partition 2, and the partition 2 is fixed to the top of the material box; The telescopic smoke exhaust pipe is fixed on the top of the material box; A movable frame is fixed on the top of the pressure plate 1, a reciprocating screw 1 is threadedly sleeved on the top of the movable frame, a gear 4 is installed on the top of the reciprocating screw 1, the reciprocating screw 1 is rotatably connected to the top of the material box, a guide rod 1 is sleeved on the top of the movable frame, and the guide rod 1 is fixed on the top of the material box.
[0007] Furthermore, the melt extraction mechanism includes a reciprocating screw rod 2 rotatably connected to the top of the material box, a gear 5 is installed on the top of the reciprocating screw rod 2, an external thread of the reciprocating screw rod 2 is provided with a movable box, and a guide rod 2 is provided on the top of the movable box, and the guide rod 2 is fixed to the top of the material box; A connecting rod is fixed to the bottom of the moving box, and the bottom end of the connecting rod is fixedly connected to the conical piston plate; The conical piston plate is sleeved inside the barrel; The connecting rod sleeve is arranged between the two pressing plates 2, and the connecting rod sleeve is arranged inside the heating plate.
[0008] Furthermore, the material compacting mechanism 2 further comprises two plate grooves 1, two plate grooves 2 and two connecting grooves which are provided on the barrel, the connecting grooves communicating with the plate grooves 1 and 2, and the connecting frame being sleeved inside the connecting grooves; A guide rod 3 is fixed inside the mounting block, and the guide rod 3 is sleeved inside the two connecting frames, and the push rod motor is fixed to the outer wall of the barrel; Gear 2 is fixed to the outside of the bidirectional screw, motor 1 is fixed to the bottom of the mounting block, gear 1 is fixed to the output end of motor 1, and gear 1 is meshed with gear 2; The outer sleeve of the barrel is provided with two insulation rings, and a plurality of elastic telescopic rods are fixed on the sides of the two insulation rings away from each other. An insulation box is fixed on the outside of the barrel, and the plurality of elastic telescopic rods are fixed on the top and bottom of the insulation box; A second material separation net is installed on the second pressing plate.
[0009] Furthermore, the driving mechanism includes a motor 2 fixed to the top of the material box, and a gear 3 is fixed to the output end of the motor 2, one side of the gear 3 is meshed with the gear 4, and the other side is meshed with the gear 5; A controller is fixed on one side of the heat preservation box, and the controller is electrically connected to the motor 1, the motor 2, the heating plate, the push rod motor and the screw feeder respectively.
[0010] Compared with the existing technology, the beneficial effects of the present invention are: 1. The present invention installs a material-tightening mechanism to ensure better contact between the plastic sheet and the top of the heating plate. When the plastic sheet decreases as it melts, the mechanism continuously applies pressure to the material pile to prevent the increase of the gap between the sheet layers, thereby always maintaining the contact area between the plastic sheet pile and the heating plate, effectively improving the melting efficiency.
[0011] 2. The present invention installs a second material compacting mechanism. While the first material compacting mechanism maintains the material and the heating area of the heating plate, it compacts the next round of material in advance, ensuring the timeliness of the supply of compacted materials, shortening the feeding and pressing time, and improving the melting efficiency. The second material compacting mechanism is combined with the first material compacting mechanism to effectively reduce the gaps between the plastic sheet piles, increase the contact area between the plastic sheet piles and the heating plate, and at the same time enhance the fitting strength between the plastic sheet and the heating plate, thereby further improving the melting efficiency.
[0012] 3. The present invention installs a melt extraction mechanism and utilizes a conical piston plate to move in the barrel to form a negative pressure, which makes it easier for the melt on the top of the heating plate to penetrate into the material hole, significantly improving the material discharge efficiency; at the same time, extracting the melt above the heating plate can make the plastic sheet stack fit tightly to the heating plate, eliminating the obstruction of the melt and ensuring that the plastic sheet is in full contact with the heating plate, thereby accelerating the melting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a front structural schematic diagram of an energy-saving and environmentally friendly plastic packaging bag production equipment proposed by the present invention.
[0014] Figure 2 This is a schematic diagram of the cross-sectional structure of a material box of an energy-saving and environmentally friendly plastic packaging bag production equipment proposed by the present invention.
[0015] Figure 3 This is a schematic diagram of the internal structure of the insulation box of an energy-saving and environmentally friendly plastic packaging bag production equipment proposed by the present invention.
[0016] Figure 4 This is a structural schematic diagram of a plate trough of an energy-saving and environmentally friendly plastic packaging bag production equipment proposed by the present invention.
[0017] Figure 5 This is a schematic structural diagram of the working state of the pressing plate 2 of the energy-saving and environmentally friendly plastic packaging bag production equipment proposed by the present invention.
[0018] Figure 6 This is a schematic diagram of the internal structure of the barrel of an energy-saving and environmentally friendly plastic packaging bag production equipment proposed by the present invention.
[0019] Figure 7 for Figure 5 Enlarged structural diagram at point A.
[0020] Figure 8This is a schematic diagram of the three-dimensional structure of an energy-saving and environmentally friendly plastic packaging bag production equipment proposed by the present invention.
[0021] In the figure: 1. Screw feeder; 2. Melting mechanism; 21. Material box; 22. Barrel; 23. Discharge hopper; 24. Heating plate; 25. Material hole; 26. Feed port; 3. Material compacting mechanism 1; 31. Partition cylinder 1; 32. Partition cylinder 2; 33. Press plate 1; 34. Guide rod 1; 35. Material partition net 1; 36. Telescopic exhaust pipe; 37. Gear 4; 38. Moving frame; 39. Reciprocating screw 1; 4. Melt extraction mechanism; 41. Reciprocating screw 2; 42. Gear 5; 43. Guide rod 2; 44. Moving box; 45. Connecting rod; 46. Conical piston plate; 5. Material tightening mechanism 2; 51. Pressing plate 2; 52. Connecting frame; 53. Bidirectional screw; 54. Guide rod 3; 55. Push rod motor; 56. Mounting block; 57. Motor 1; 58. Gear 1; 59. Gear 2; 510. Plate slot 1; 511. Plate slot 2; 512. Connecting slot; 513. Insulation box; 514. Elastic telescopic rod; 515. Insulation ring; 516. Material separator 2; 6. Driving mechanism; 61. Motor 2; 62. Gear 3; 7. Controller. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.
[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.
[0025] Example: Refer to Figures 1-8 : An energy-saving and environmentally friendly plastic packaging bag production device, including a screw feeder 1, and also includes: The melting mechanism 2 is installed on the top of the screw feeder 1 and includes a heating plate 24 with a plurality of material holes 25; The material compacting mechanism 3 is installed inside the melting mechanism 2 and includes a pressing plate 33. The pressing plate 33 is connected to two telescopic exhaust pipes 36. The inner wall of the bottom end of the telescopic exhaust pipe 36 is fixed with a material separation net 35. The melt extraction mechanism 4 is mounted on the bottom of the heating plate 24 and includes a conical piston plate 46; The material compacting mechanism 2 5 is connected to the melting mechanism 2 and includes two mirror-image-arranged pressing plates 51 . A connecting frame 52 is fixed to the side away from each other of the two pressing plates 51 . The internal threads of the two connecting frames 52 are provided with bidirectional screws 53 . The external rotation of the bidirectional screws 53 is connected to a mounting block 56 . A push rod motor 55 is fixed to the top of the mounting block 56 . The driving mechanism 6 is connected to the melting mechanism 2 .
[0026] The melting mechanism 2 further includes a material box 21, and a material inlet 26 is provided at the top of the material box 21; The bottom of the material box 21 is connected to the material barrel 22 , the heating plate 24 is fixed inside the material barrel 22 , the bottom of the material barrel 22 is connected to the discharge hopper 23 , and the discharge hopper 23 is connected to the top of the screw feeder 1 .
[0027] The material compacting mechanism 1 3 further includes a partition 1 31 fixed on the top of the pressure plate 1 33 , and a partition 2 32 is sleeved on the top of the partition 1 31 , and the partition 2 32 is fixed on the top of the material box 21 ; The telescopic exhaust pipe 36 is fixed to the top of the material box 21; A movable frame 38 is fixed to the top of the pressure plate 33, and a reciprocating screw 39 is threadedly sleeved on the top of the movable frame 38. A gear 4 37 is installed on the top of the reciprocating screw 39. The reciprocating screw 39 is rotatably connected to the top of the material box 21. A guide rod 34 is sleeved on the top of the movable frame 38, and the guide rod 34 is fixed to the top of the material box 21.
[0028] The melt extraction mechanism 4 includes a reciprocating screw 41 rotatably connected to the top of the material box 21. A gear 42 is installed on the top of the reciprocating screw 41. The external thread of the reciprocating screw 41 is provided with a movable box 44. The top of the movable box 44 is provided with a guide rod 43. The guide rod 43 is fixed to the top of the material box 21. A connecting rod 45 is fixed to the bottom of the moving box 44, and the bottom end of the connecting rod 45 is fixedly connected to the conical piston plate 46; The conical piston plate 46 is sleeved inside the barrel 22; The connecting rod 45 is sleeved between the two pressing plates 51 , and the connecting rod 45 is sleeved inside the heating plate 24 .
[0029] The material compacting mechanism 2 5 further includes two plate grooves 510 1 , two plate grooves 511 2 and two connecting grooves 512 , which are formed on the barrel 22 . The connecting grooves 512 connect the plate grooves 510 1 and the plate grooves 511 2 . The connecting frame 52 is sleeved inside the connecting grooves 512 . A guide rod 3 54 is fixed inside the mounting block 56 , and the guide rod 3 54 is sleeved inside the two connecting frames 52 , and the push rod motor 55 is fixed to the outer wall of the barrel 22 ; A second gear 59 is fixed to the outside of the bidirectional screw 53, a motor 57 is fixed to the bottom of the mounting block 56, and a gear 58 is fixed to the output end of the motor 57, and the gear 58 is meshed with the gear 2 59; The barrel 22 is provided with two insulation rings 515 on the outside, and a plurality of elastic telescopic rods 514 are fixed to the sides away from each other. The barrel 22 is also provided with an insulation box 513 on the outside, and a plurality of elastic telescopic rods 514 are fixed to the top and bottom of the insulation box 513. A material separation net 516 is installed on the second pressing plate 51.
[0030] The driving mechanism 6 includes a second motor 61 fixed to the top of the material box 21. A third gear 62 is fixed to the output end of the second motor 61. One side of the third gear 62 is meshed with the fourth gear 37, and the other side is meshed with the fifth gear 42. A controller 7 is fixed to one side of the heat preservation box 513 , and the controller 7 is electrically connected to the motor 1 57 , the motor 2 61 , the heating plate 24 , the push rod motor 55 and the screw feeder 1 .
[0031] Working principle: The push rod motor 55 is started to push the mounting block 56, the bidirectional screw 53, the connecting frame 52 and the second pressing plate 51 downward, and the connecting frame 52 slides in the connecting groove 512. The second pressing plate 51 presses down the plastic sheet pile between the heating plates 24, giving thrust to the compacted plastic sheet pile so that the plastic sheet pile can better contact with the top of the heating plate 24, avoiding the increase of gaps between the plastic sheets as the plastic sheet pile becomes less as it melts. Therefore, the plastic sheet pile is continuously pressurized during melting to always ensure the contact area between the plastic sheet pile and the heating plate 24, thereby improving the melting efficiency. At the same time, the plastic sheets in the material box 21 enter the interior of the barrel 22 through the gap with the first pressing plate 33 and fall on the top of the second pressing plate 51. The second motor 61 is started to drive The movable gear three 62 rotates, and the gear three 62 drives the gear four 37 and the reciprocating screw one 39 to rotate. The rotation of the reciprocating screw one 39 causes the movable frame 38 to push the pressure plate one 33 and the partition two 32 downward. The partition two 32 and the partition one 31 block the plastic sheets. The pressure plate one 33 moves downward to press the plastic sheet pile below, so that the air inside the plastic sheet is discharged through the partition net one 35 and the telescopic exhaust pipe 36. At the same time, the gas generated by heating is also discharged through the partition net one 35 and the telescopic exhaust pipe 36. When the movable frame 38 moves to the tail of the reciprocating screw one 39 and stops moving, the plastic sheet pile is squeezed tightly, and the gap between the tight plastic sheet pile becomes smaller, which makes the contact area between the plastic sheet pile and the heating plate 24 wider, thereby improving the melting efficiency. At this time, the pressing plate 2 51 is flush with the plate groove 2 511, and then the motor 1 57 is started to drive the gear 1 58 to rotate forward, so that the gear 2 59 drives the bidirectional screw 53 to rotate, so that the two connecting frames 52 pull the pressing plates 2 51 away from each other and move out of the barrel 22 through the plate groove 2 511. When the pressing plate 2 51 moves away, the plastic sheet pile pressed above and the plastic sheet pile pressed below the pressing plate 2 51 contact and form a whole. Then the push rod motor 55 pulls the mounting block 56, the bidirectional screw 53, the connecting frame 52 and the pressing plate 2 51 (at this time, the pressing plate 2 51 has been moved out of the barrel 22, see the details). Figure 5 ) moves up, and the second pressing plate 51 is flush with the plate groove 1 510, and then the motor 1 57 is started to drive the gear 1 58 to rotate in the opposite direction, so that the bidirectional screw 53 drives the two connecting frames 52 to move closer to each other, so that the second pressing plate 51 is inserted into the interior of the plate groove 1 510. Because the bottom of the pressing plate 1 33 is flush with the top of the plate groove 1 510 after stopping, the second pressing plate 51 will be close to the bottom of the pressing plate 1 33 when closing, and the plastic sheet pile at the bottom of the pressing plate 1 33 is transferred to the bottom of the second pressing plate 51, and then the pressing plate 1 33 is moved up to allow the plastic sheet to enter the top of the second pressing plate 51, and the second pressing plate 51 is moved down to maintain the compactness of the plastic sheet pile, and then the above steps are repeated to keep the plastic sheet in a compact state and melt; When the gear three 62 drives the gear four 37 to rotate, it also drives the gear five 42 to rotate. The reciprocating screw two 41 rotates to make the moving box 44 drive the connecting rod 45 and the conical piston plate 46 to move up and down. When the conical piston plate 46 moves in the barrel 22, negative pressure is generated. The negative pressure makes it easier for the melted melt on the top of the heating plate 24 to pass through the material hole 25 and fall on the top of the conical piston plate 46. When the conical piston plate 46 moves to the inside of the discharge hopper 23, the solution on the top will fall from the edge of the conical piston plate 46 into the inside of the discharge hopper 23, and then pass through the discharge hopper 23 into the screw feeder 1; When the conical piston plate 46 moves upward in the barrel 22, the gas between the piston plate 46 and the heating plate 24 will enter the upper part through the material hole 25 and then be discharged. When the gas enters the upper part through the material hole 25, it will dredge the material hole 25 to avoid blockage. The molten liquid above the heating plate 24 is pumped away by the conical piston plate 46, which helps the plastic sheet stack to fit more closely to the heating plate 24 and improves the melting efficiency; When the connecting frame 52 moves up and down, the two heat preservation rings 515 are closely attached to the connecting frame 52 through the elastic telescopic rods 514, and the plate groove 1 510 and the plate groove 2 511 are opened and closed respectively, so as to prevent excessive loss of temperature inside the barrel 22.
[0032] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.
Claims
1. An energy-saving and environmentally friendly plastic packaging bag production device, comprising a screw feeder (1), characterized in that: Also includes: A melting mechanism (2) is mounted on the top of the screw feeder (1), comprising a heating plate (24) with a plurality of material holes (25) formed thereon; A material compacting mechanism (3) is installed inside the melting mechanism (2), comprising a pressing plate (33), two telescopic exhaust pipes (36) are connected to the pressing plate (33), and a material separation net (35) is fixed to the inner wall of the bottom end of the telescopic exhaust pipe (36); A melt extraction mechanism (4), which is mounted on the bottom of the heating plate (24) and includes a conical piston plate (46); The material tightening mechanism (5) is connected to the melting mechanism (2), and includes two mirror-image-arranged pressing plates (51), and a connecting frame (52) is fixed on the side away from each other of the two pressing plates (51). The internal thread sleeves of the two connecting frames (52) are provided with a bidirectional screw (53), and the external rotation of the bidirectional screw (53) is connected to a mounting block (56), and a push rod motor (55) is fixed on the top of the mounting block (56); A driving mechanism (6) is connected to the melting mechanism (2).
2. The energy-saving and environmentally friendly plastic packaging bag production equipment according to claim 1 is characterized in that: The melting mechanism (2) further comprises a material box (21), and a material inlet (26) is provided at the top of the material box (21); The bottom of the material box (21) is connected to a material barrel (22), the heating plate (24) is fixed inside the material barrel (22), the bottom of the material barrel (22) is connected to a discharge hopper (23), and the discharge hopper (23) is connected to the top of the screw feeder (1).
3. The energy-saving and environmentally friendly plastic packaging bag production equipment according to claim 2, characterized in that: The material compacting mechanism (3) further comprises a spacer (31) fixed on the top of the pressure plate (33), a spacer (32) is sleeved on the top of the spacer (31), and the spacer (32) is fixed on the top of the material box (21); The telescopic smoke exhaust pipe (36) is fixed on the top of the material box (21); A movable frame (38) is fixed on the top of the pressure plate (33), a reciprocating screw (39) is threadedly sleeved on the top of the movable frame (38), a gear (37) is installed on the top of the reciprocating screw (39), the reciprocating screw (39) is rotatably connected to the top of the material box (21), a guide rod (34) is sleeved on the top of the movable frame (38), and the guide rod (34) is fixed to the top of the material box (21).
4. The energy-saving and environmentally friendly plastic packaging bag production equipment according to claim 3 is characterized in that: The melt extraction mechanism (4) includes a reciprocating screw rod 2 (41) rotatably connected to the top of the material box (21), a gear 5 (42) is installed on the top of the reciprocating screw rod 2 (41), an external thread sleeve of the reciprocating screw rod 2 (41) is provided with a movable box (44), the top of the movable box (44) is sleeved with a guide rod 2 (43), and the guide rod 2 (43) is fixed to the top of the material box (21); A connecting rod (45) is fixed to the bottom of the moving box (44), and the bottom end of the connecting rod (45) is fixedly connected to the conical piston plate (46); The conical piston plate (46) is sleeved inside the barrel (22); The connecting rod (45) is sleeved between the two second pressing plates (51), and the connecting rod (45) is sleeved inside the heating plate (24).
5. The energy-saving and environmentally friendly plastic packaging bag production equipment according to claim 4, characterized in that: The material compacting mechanism 2 (5) further comprises two plate grooves 1 (510), two plate grooves 2 (511) and two connecting grooves (512) which are provided on the barrel (22), wherein the connecting grooves (512) are connected to the plate grooves 1 (510) and the plate grooves 2 (511), and the connecting frame (52) is sleeved inside the connecting grooves (512); A guide rod 3 (54) is fixed inside the mounting block (56), and the guide rod 3 (54) is sleeved inside the two connecting frames (52). The push rod motor (55) is fixed to the outer wall of the barrel (22); A second gear (59) is fixed to the outside of the bidirectional screw (53), a motor (57) is fixed to the bottom of the mounting block (56), a gear (58) is fixed to the output end of the motor (57), and the gear (58) is meshed with the gear (59); The barrel (22) is externally sleeved with two heat-insulating rings (515), and a plurality of elastic telescopic rods (514) are fixed to the sides of the two heat-insulating rings (515) that are away from each other. A heat-insulating box (513) is externally fixed to the barrel (22), and the plurality of elastic telescopic rods (514) are fixed to the top and bottom of the heat-insulating box (513); A second material separation net (516) is installed on the second pressing plate (51).
6. The energy-saving and environmentally friendly plastic packaging bag production equipment according to claim 5, characterized in that: The material compacting mechanism 2 (5) further comprises two plate grooves 1 (510), two plate grooves 2 (511) and two connecting grooves (512) which are provided on the barrel (22), wherein the connecting grooves (512) are connected to the plate grooves 1 (510) and the plate grooves 2 (511), and the connecting frame (52) is sleeved inside the connecting grooves (512); A guide rod 3 (54) is fixed inside the mounting block (56), and the guide rod 3 (54) is sleeved inside the two connecting frames (52). The push rod motor (55) is fixed to the outer wall of the barrel (22); A second gear (59) is fixed to the outside of the bidirectional screw (53), a motor (57) is fixed to the bottom of the mounting block (56), a gear (58) is fixed to the output end of the motor (57), and the gear (58) is meshed with the gear (59); The barrel (22) is externally sleeved with two heat-insulating rings (515), and a plurality of elastic telescopic rods (514) are fixed to the sides of the two heat-insulating rings (515) that are away from each other. A heat-insulating box (513) is externally fixed to the barrel (22), and the plurality of elastic telescopic rods (514) are fixed to the top and bottom of the heat-insulating box (513); A second material separation net (516) is installed on the second pressing plate (51).
7. The energy-saving and environmentally friendly plastic packaging bag production equipment according to claim 6, characterized in that: A controller (7) is fixed to one side of the heat preservation box (513), and the controller (7) is electrically connected to the motor 1 (57), the motor 2 (61), the heating plate (24), the push rod motor (55) and the screw feeder (1).