A continuous automatic packaging device for packaging bags

Abstract

The present invention relates to the field of packaging bag processing, and specifically to a continuous automatic packaging device for packaging bags. It includes a transport mechanism that can drive a number of plastic bags to move in sequence, and also includes: two positioning seats, which are symmetrically arranged on both sides of the transport mechanism; two propulsion mechanisms, which are respectively connected to the sides close to the two positioning seats, and each propulsion mechanism includes a positioning plate that can move in a rectangular track; two packaging mechanisms, which are respectively connected to the two positioning plates, and each packaging mechanism includes a positioning frame, a heater, a heating copper tube, a heat-conducting sleeve and a driving motor, the positioning frame is fixedly connected to the positioning plate, the driving motor is fixedly connected to the positioning frame, the heater is slidably arranged on the side of the driving motor away from the positioning plate, the heating copper tube is fixedly connected to the output end of the heater, and the heat-conducting sleeve is arranged on the outside of the heating copper tube; two flattening mechanisms, which are symmetrically arranged on the upper and lower sides of the heater, and each flattening mechanism includes an extrusion roller that can flatten the plastic bag.

Description

Technical Field

[0001] The invention relates to the field of packaging bag processing, and in particular to a packaging bag continuous automatic packaging device. Background Art

[0002] During the processing, packaging bags need to be sealed by heat pressing. However, in the existing sealing process, the heat pressing head used in the traditional packaging bag heat pressing device is usually driven by a cylinder or a hydraulic cylinder. During this process, the heat pressing head will press the sealing part of the packaging bag. However, since the heat pressing head is usually narrow, the thickness of the packaging bag material is inconsistent or unevenly distributed during the pressing process, which may cause some areas to fail to fully melt during heat sealing, thereby affecting the sealing strength. During this process, the heat sealing area of ​​the packaging bag is subjected to instantaneous high pressure, and the packaging bag will be destroyed by the heat pressing head. At the same time, excessive pressure will squeeze out the liquid thermoplastic polymer to form a "gathering ball", affecting the sealing strength. In addition, the edge sealing after heat sealing is not cooled enough, the shaping is insufficient, and the internal stress cannot be eliminated, which will also affect the sealing strength and appearance.

[0003] In addition, when the existing heat-sealing device for packaging bags performs heat-pressure sealing on packaging bags, some packaging bags are prone to wrinkles during the conveying process. The wrinkles will cause uneven heating of the packaging bags during heat sealing, and some wrinkled areas may not be fully melted, thereby reducing the strength and sealing of the seal. In addition, wrinkles may also make it difficult to achieve true fusion between the heat-sealing layers, resulting in a false seal or leaking seal, affecting the sealing effect of the packaging bag. Usually, when the operator finds wrinkles on the packaging bag, it is generally necessary to stop the machine and adjust the heat-sealing device to ensure the sealing quality, which will reduce production efficiency. Summary of the invention

[0004] Based on this, it is necessary to provide a continuous automatic packaging device for packaging bags to address the existing technical problems.

[0005] In order to solve the problems of the prior art, the technical solution adopted by the present invention is:

[0006] A packaging bag continuous automatic packaging device includes a transport mechanism capable of driving a plurality of plastic bags to move in sequence, and also includes:

[0007] Two positioning seats are symmetrically arranged on both sides of the transport mechanism;

[0008] Two propulsion mechanisms are respectively connected to the adjacent sides of the two positioning seats, and each propulsion mechanism includes a positioning plate capable of moving in a rectangular track;

[0009] Two packaging mechanisms are connected to two positioning plates respectively, and each packaging mechanism includes a positioning frame, a heater, a heating copper tube, a heat-conducting sleeve and a driving motor. The positioning frame is fixedly connected to the positioning plate, the driving motor is fixedly connected to the positioning frame, the heater is slidably arranged on a side of the driving motor away from the positioning plate, the heating copper tube is fixedly connected to the output end of the heater, and the heat-conducting sleeve is fixedly arranged on the outside of the heating copper tube;

[0010] Two flattening mechanisms are symmetrically arranged on the upper and lower sides of the heater, and each flattening mechanism comprises a squeezing roller capable of flattening the plastic bag.

[0011] Furthermore, the propulsion mechanism also includes a dual-axis motor, two positioning side plates, four positioning guide rails and two deflection rockers. The dual-axis motor is fixedly connected to the positioning seat. The two positioning side plates are symmetrically arranged on both sides of the dual-axis motor. The two deflection rockers are respectively rotatably arranged on the side of the two positioning side plates away from the dual-axis motor. One end of the two deflection rockers is respectively coaxially fixedly connected to the two output ends of the dual-axis motor. The upper and lower sides of each positioning side plate are respectively fixedly connected to a positioning guide rail, and the positioning guide rail is fixedly connected to the positioning seat.

[0012] Furthermore, the propulsion mechanism also includes four positioning slides, two sliding support rods, two positioning connecting blocks, two positioning short pins and two connecting frames. A rectangular groove is formed on the side of the positioning side plate away from the dual-axis motor, and a strip-shaped perforation is formed on the deflection rocker. The positioning short pin is slidably connected to the strip perforation. One end of the positioning short pin is slidably connected to the rectangular groove, and the other end is fixedly connected to the positioning connecting block. The positioning connecting block is fixedly connected to the sliding support rod. Each positioning guide rail is slidably connected to a positioning slide, and the two ends of each sliding support rod are respectively slidably connected to the corresponding two positioning slides. One end of the connecting frame is fixedly connected to the positioning plate, and the other end is fixedly connected to the sliding support rod.

[0013] Furthermore, the packaging mechanism also includes a first bevel tooth, a second bevel tooth, a driving roller shaft, two first gears and two first racks, the first bevel tooth is coaxially fixedly connected to the output end of the driving motor, the second bevel tooth is meshed with the first bevel tooth, the driving roller shaft is coaxially fixedly connected to the second bevel tooth, the two first gears are respectively coaxially fixedly connected to the two ends of the driving roller shaft, and the two first racks are respectively meshed with the two first gears.

[0014] Furthermore, the packaging mechanism also includes two positioning baffles, two connecting support plates, two connecting short pins and two connecting slides. The two positioning baffles are respectively fixedly connected to the side of the positioning frame away from the positioning plate, the two connecting support plates are respectively slidably connected to the side close to the two positioning baffles, the two connecting support plates are respectively fixedly connected to the two first racks, the two connecting support plates are respectively fixedly connected to the two ends of the heater, the positioning baffle is formed with connecting through holes, the two connecting short pins are respectively slidably connected to the two connecting through holes, one end of the connecting short pin is fixedly connected to the connecting support plate, and the other end is fixedly connected to the connecting slide.

[0015] Furthermore, the flattening mechanism also includes two first magnets, two second magnets, two second racks and two limit pins. The two first magnets are respectively fixedly connected to the two connecting sliders, the two second magnets are respectively connected to the two first magnets by magnetic force, the two second racks are respectively slidably connected to the two positioning baffles and fixedly connected to the corresponding second magnets, and a limit perforation is formed on the second rack, and the limit pin is slidably connected to the limit perforation and fixedly connected to the positioning baffle.

[0016] Furthermore, the flattening mechanism also includes two second gears, two first pulleys, two second pulleys, two positioning supports, two positioning rope seats, two rope winders, two lifting sliders and two adapters. The two second gears are respectively meshed with the two second racks, the two first pulleys are respectively fixedly connected to the two second gears coaxially, the two second pulleys are respectively connected to the two first pulleys through belts, the two positioning supports are respectively fixedly connected to the two positioning baffles, the two positioning rope seats are respectively fixedly connected to the side of the two positioning supports away from the positioning baffles, the two rope winders are respectively fixedly connected to the two positioning rope seats, the input ends of the two rope winders are respectively fixedly connected to the two second pulleys coaxially, the two lifting sliders are respectively slidably connected to the two positioning supports through springs, the two lifting sliders are respectively fixedly connected to the output ends of the two rope winders, and the two adapters are respectively arranged on the side of the two lifting sliders close to the extrusion roller, and the two adapters are respectively rotatably connected to the two ends of the extrusion roller.

[0017] Furthermore, the flattening mechanism also includes two extrusion pins and two extrusion tension springs. The two extrusion pins are respectively slidably connected to the two lifting sliders, one ends of the two extrusion pins are respectively fixedly connected to the two adapters, and the two extrusion tension springs are respectively sleeved on the outside of the two extrusion pins, one end of the two extrusion tension springs are respectively fixedly connected to the two lifting sliders, and the other ends are respectively fixedly connected to the two extrusion pins.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] Firstly, the device can seal packaging bags of different specifications through the propulsion mechanism. Since the propulsion mechanism can drive the sealing mechanism to perform rectangular displacement, the operator only needs to change the starting anchor point of the sealing mechanism to change the sealing position of packaging bags of different specifications, and has a wide range of applications.

[0020] Second, when the device seals the packaging bag through the sealing mechanism, the heat-conducting sleeve sleeved on the outside of the heating copper tube will evenly treat the heat of the heating copper tube to prevent the sealing strength from being affected due to insufficient melting of some areas during the sealing process;

[0021] Thirdly, the device realizes smoothing of the heat-sealed area of ​​the packaging bag between heat-sealing by means of the squeezing roller in the flattening mechanism, thereby ensuring that no wrinkles will appear in the heat-sealed area of ​​the packaging bag during the heat-sealing process, and preventing the heat-sealed layers from being unable to achieve true fusion due to wrinkles during the heat-sealing process, thereby preventing the formation of false seals or leaking seals, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of the three-dimensional structure of an embodiment;

[0023] Figure 2 is a front view of an embodiment;

[0024] Figure 3 It is a partial top view of the embodiment

[0025] Figure 4 is a partial three-dimensional structural schematic diagram of an embodiment;

[0026] Figure 5 is a schematic diagram of a three-dimensional structure decomposition of a propulsion mechanism in an embodiment;

[0027] Figure 6 is a truncated view of the three-dimensional structure of the packaging mechanism and the flattening mechanism in the embodiment;

[0028] Figure 7 yes Figure 6 A magnified view of the structure at center;

[0029] Figure 8 yes Figure 6 A magnified view of the structure at B in the middle;

[0030] Fig. 9 is a planar cross-sectional view of a packaging mechanism and a flattening mechanism in an embodiment;

[0031] Fig.10 It is a three-dimensional cross-sectional view of the packaging mechanism and the flattening mechanism in the embodiment.

[0032] The numbers in the figure are:

[0033] 1. Transport mechanism; 2. Plastic bag; 3. Positioning seat; 4. Propelling mechanism; 5. Dual-axis motor; 6. Positioning side plate; 7. Rectangular groove; 8. Positioning guide rail; 9. Positioning slide block; 10. Sliding support rod; 11. Positioning connecting block; 12. Positioning short pin; 13. Deflection rocker; 14. Strip perforation; 15. Connecting frame; 16. Positioning plate; 17. Packing mechanism; 18. Positioning frame; 19. Positioning baffle; 20. Connecting perforation; 21. Heater; 22. Connecting support plate; 23. Heating copper tube; 24. Heat-conducting sleeve; 25. Driving motor; 2 6. First bevel tooth; 27. Second bevel tooth; 28. Driving roller shaft; 29. ​​First gear; 30. First rack; 31. Connecting short pin; 32. Connecting slider; 33. Flattening mechanism; 34. First magnet; 35. Second magnet; 36. Second rack; 37. Limiting hole; 38. Limiting pin; 39. Second gear; 40. First pulley; 41. Second pulley; 42. Positioning support; 43. Positioning rope seat; 44. Rope winder; 45. Lifting slider; 46. Adapter; 47. Extrusion pin; 48. Extrusion tension spring; 49. Extrusion roller. DETAILED DESCRIPTION

[0034] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0035] refer to Figures 1 to 10 A packaging bag continuous automatic packaging device includes a transport mechanism 1 that can drive a plurality of plastic bags 2 to move in sequence, and also includes:

[0036] Two positioning seats 3 are symmetrically arranged on both sides of the transport mechanism 1;

[0037] Two propulsion mechanisms 4 are respectively connected to the adjacent sides of the two positioning seats 3, and each propulsion mechanism 4 includes a positioning plate 16 capable of moving in a rectangular track;

[0038] Two packaging mechanisms 17 are connected to two positioning plates 16 respectively. Each packaging mechanism 17 includes a positioning frame 18, a heater 21, a heating copper tube 23, a heat-conducting sleeve 24 and a driving motor 25. The positioning frame 18 is fixedly connected to the positioning plate 16, the driving motor 25 is fixedly connected to the positioning frame 18, the heater 21 is slidably arranged on a side of the driving motor 25 away from the positioning plate 16, and the heating copper tube 23 is fixedly connected to the output end of the heater 21 (such as Fig. 9 As shown), the heat-conducting sleeve 24 is fixedly sleeved on the outside of the heating copper tube 23;

[0039] Two flattening mechanisms 33 are symmetrically arranged on the upper and lower sides of the heater 21 , and each flattening mechanism 33 includes a squeezing roller 49 that can flatten the plastic bag 2 .

[0040] When the device is in operation, when the transport mechanism 1 drives the plastic bag 2 to move to the side where the two positioning seats 3 are close to each other, the propulsion mechanism 4 starts to drive the positioning plate 16 to perform a rectangular displacement. At this time, the positioning plate 16 will approach the plastic bag 2 through the positioning frame 18, and the reference Figure 1 , Figure 2 and Figure 6 It can be seen that the squeezing rollers 49 arranged on both sides of the plastic bag 2 will approach each other and squeeze the plastic bag 2, and when the squeezing rollers 49 move to the preset position, the driving motor 25 will drive the heater 21 to move in the direction close to the plastic bag 2. During this process, the two squeezing rollers 49 arranged on the side of the heater 21 close to the plastic bag 2 will roll in the direction away from each other, and the plastic bag 2 squeezed by the squeezing rollers 49 will be stretched to avoid wrinkles during the hot pressing process. After the heating copper tube 23 is heated by the heater 21, the heat-conducting sleeve 24 can evenly distribute the heat of the heating copper tube 23 to prevent the heating copper tube 23 from squeezing the plastic bag 2. The hot pressing area of ​​the plastic bag 2 is affected by local overheating and the packaging effect.

[0041] In order to supplement the specific structure of the propulsion mechanism 4, the following features are also specifically provided:

[0042] The propulsion mechanism 4 also includes a dual-axis motor 5, two positioning side plates 6, four positioning guide rails 8 and two deflection rockers 13. The dual-axis motor 5 is fixedly connected to the positioning seat 3. The two positioning side plates 6 are symmetrically arranged on both sides of the dual-axis motor 5. The two deflection rockers 13 are respectively rotatably arranged on the side of the two positioning side plates 6 away from the dual-axis motor 5. One end of the two deflection rockers 13 is respectively coaxially fixedly connected to the two output ends of the dual-axis motor 5. The upper and lower sides of each positioning side plate 6 are respectively fixedly connected with a positioning guide rail 8, and the positioning guide rail 8 is fixedly connected to the positioning seat 3. After the dual-axis motor 5 is started, the dual-axis motor 5 will drive the two deflection rockers 13 to rotate. When the two deflection rockers 13 rotate, they will move toward the side away from the dual-axis motor 5 along the positioning side plates 6.

[0043] In order to realize the rectangular displacement of the positioning plate 16, the following features are also specifically provided:

[0044] The propulsion mechanism 4 also includes four positioning sliders 9, two sliding support rods 10, two positioning connecting blocks 11, two positioning short pins 12 and two connecting frames 15. A rectangular groove 7 is formed on the side of the positioning side plate 6 away from the dual-axis motor 5, and a strip-shaped through hole 14 is formed on the deflection rocker 13. The positioning short pin 12 is slidably connected to the strip through hole 14. One end of the positioning short pin 12 is slidably connected to the rectangular groove 7, and the other end is fixedly connected to the positioning connecting block 11. The positioning connecting block 11 is fixedly connected to the sliding support rod 10. Each positioning guide rail 8 is slidably connected to a positioning slider 9. The two ends of each sliding support rod 10 are respectively slidably connected to the corresponding two positioning sliders 9. One end of the connecting frame 15 is fixedly connected to the positioning plate 16, and the other end is fixedly connected to the sliding support rod 10. During the rotation of the deflection rocker 13, the deflection rocker 13 will drive the positioning short pin 12 to move along the rectangular groove 7 through the strip perforation 14. During the movement of the positioning short pin 12, the positioning short pin 12 will drive the sliding support rod 10 to move through the positioning connecting block 11. When the sliding support rod 10 moves, it will also be limited by the positioning slider 9, thereby achieving the same movement trajectory of the positioning plate 16 and the positioning short pin 12, thereby achieving a rectangular displacement of the packaging mechanism 17 and the flattening mechanism 33.

[0045] In order to supplement the specific structure of the packaging mechanism 17, the following features are also specifically provided:

[0046] The packaging mechanism 17 further includes a first bevel gear 26, a second bevel gear 27, a driving roller shaft 28, two first gears 29 and two first racks 30. The first bevel gear 26 is coaxially fixedly connected to the output end of the driving motor 25, the second bevel gear 27 is meshed with the first bevel gear 26, the driving roller shaft 28 is coaxially fixedly connected to the second bevel gear 27, the two first gears 29 are coaxially fixedly connected to the two ends of the driving roller shaft 28, and the two first racks 30 are respectively meshed with the two first gears 29. After the driving motor 25 is started, the driving motor 25 will drive the second bevel gear 27 to rotate through the first bevel gear 26, the second bevel gear 27 will drive the two first gears 29 to rotate through the driving roller shaft 28, and the two first gears 29 will also drive the two first racks 30 to move after the two first gears 29 rotate.

[0047] In order to drive the heater 21 to move, the following features are also specifically provided:

[0048] The packaging mechanism 17 also includes two positioning baffles 19, two connecting support plates 22, two connecting short pins 31 and two connecting slide blocks 32. The two positioning baffles 19 are respectively fixedly connected to the side of the positioning frame 18 away from the positioning plate 16, and the two connecting support plates 22 are respectively slidably connected to the side close to the two positioning baffles 19. The two connecting support plates 22 are respectively fixedly connected to the two first racks 30, and the two connecting support plates 22 are respectively fixedly connected to the two ends of the heater 21. The positioning baffle 19 is formed with a connecting through hole 20 (reference Figure 6 and Figure 8 ), two connecting short pins 31 are respectively slidably connected with the two connecting through holes 20, one end of the connecting short pin 31 is fixedly connected with the connecting support plate 22, and the other end is fixedly connected with the connecting slider 32. When the two first racks 30 move, the first racks 30 will drive the heater 21 to move through the connecting support plate 22, so that the heater 21 can heat-press the plastic bag 2 by heating the copper tube 23 and the heat-conducting sleeve 24. In this process, the operator can preset the start time of the driving motor 25, so as to heat-press the plastic bags 2 of different specifications.

[0049] In order to supplement the specific structure of the flattening mechanism 33, the following features are also specifically provided:

[0050] The flattening mechanism 33 further includes two first magnets 34, two second magnets 35, two second racks 36 and two stop pins 38. The two first magnets 34 are respectively fixedly connected to the two connecting sliders 32 (refer to Figure 8 ), the two second magnets 35 are respectively connected to the two first magnets 34 by magnetic force, the two second racks 36 are respectively slidably connected to the two positioning baffles 19 and fixedly connected to the corresponding second magnets 35, and a limiting through hole 37 is formed on the second rack 36, and the limiting pin 38 is slidably connected to the limiting through hole 37 and fixedly connected to the positioning baffle 19. When the first rack 30 moves, the first rack 30 will also drive the connecting short pin 31 to move through the connecting support plate 22, and when the connecting short pin 31 moves, it will also drive the connecting slider 32 to move. When the connecting slider 32 moves, it will drive the second magnet 35 to move through the first magnet 34, and when the second magnet 35 moves, it will drive the second rack 36 to move. In order to limit the moving distance of the second rack 36, the limit pin 38 will move in the limit perforation 37 until it moves to the end of the limit perforation 37. At this time, the connecting slider 32 continues to move, which will cause the first magnet 34 and the second magnet 35 to be staggered. When the connecting slider 32 is reset, the connecting slider 32 will drive the second magnet 35 to move through the first magnet 34 until the limit pin 38 is against the other end of the limit perforation 37. At this time, the staggered first magnet 34 and second magnet 35 will be reset to prevent the first magnet 34 and second magnet 35 from remaining in a staggered state.

[0051] In order to drive the squeezing roller 49 to move, the following features are also specifically provided:

[0052] The flattening mechanism 33 also includes two second gears 39, two first pulleys 40, two second pulleys 41, two positioning supports 42, two positioning rope seats 43, two rope reels 44, two lifting sliders 45 and two adapters 46. The two second gears 39 are respectively meshed with the two second racks 36, the two first pulleys 40 are respectively coaxially connected to the two second gears 39, the two second pulleys 41 are respectively connected to the two first pulleys 40 through belts, the two positioning supports 42 are respectively connected to the two positioning baffles 19, and the two positioning rope seats 43 are respectively connected to the side of the two positioning supports 42 away from the positioning baffle 19, the two rope reels 44 are respectively connected to the two positioning rope seats 43, the input ends of the two rope reels 44 are respectively connected to the two second pulleys 41 coaxially, the two lifting sliders 45 are respectively connected to the two positioning supports 42 through springs, the two lifting sliders 45 are respectively connected to the output ends of the two rope reels 44, the two adapters 46 are respectively arranged on the side of the two lifting sliders 45 close to the squeezing roller 49, and the two adapters 46 are respectively connected to the two ends of the squeezing roller 49. When the second rack 36 moves, the second rack 36 will drive the first pulley 40 to rotate through the second gear 39, the first pulley 40 will drive the rope reel 44 to rotate through the second pulley 41, and the rope reel 44 will drive the lifting slider 45 to move along the positioning support 42 after the rotation, and the lifting slider 45 will drive the squeezing roller 49 to move through the adapter 46 when it moves, and the squeezing roller 49 will flatten the plastic bag 2 during the movement to prevent the plastic bag 2 from wrinkling.

[0053] When the connecting slider 32 is reset, as can be seen from the foregoing, the compressed spring will drive the lifting slider 45 to reset, so as to prepare for the next flattening of the plastic bag 2.

[0054] In order to ensure that the squeezing roller 49 is pressed tightly against the plastic bag 2, the following features are also provided:

[0055] The flattening mechanism 33 further includes two extrusion pins 47 and two extrusion tension springs 48. The two extrusion pins 47 are slidably connected to the two lifting slide blocks 45 (refer to Figure 7 ), one end of the two extrusion pins 47 is respectively connected to the two adapters 46, two extrusion tension springs 48 are respectively sleeved on the outside of the two extrusion pins 47, one end of the two extrusion tension springs 48 is respectively connected to the two lifting sliders 45, and the other end is respectively connected to the two extrusion pins 47. When the extrusion roller 49 contacts the plastic bag 2, the extrusion tension spring 48 can drive the adapter 46 to move through the extrusion pin 47, and the adapter 46 will drive the extrusion roller 49 to press against the plastic bag 2 after moving, so that when the extrusion roller 49 and the plastic bag 2 roll relative to each other, the extrusion roller 49 can tighten the plastic bag 2.

[0056] The working principle of the device is that when the transport mechanism 1 drives the plastic bag 2 to move to the side where the two positioning seats 3 are close to each other, the dual-axis motor 5 starts to drive the positioning plate 16 to perform a rectangular displacement. At this time, the positioning plate 16 will approach the plastic bag 2 through the positioning frame 18, and the reference Figure 1 , Figure 2 and Figure 6 It can be seen that the squeezing rollers 49 arranged on both sides of the plastic bag 2 will approach each other and squeeze the plastic bag 2, and when moving to the preset position, the driving motor 25 will drive the heater 21 to move in the direction close to the plastic bag 2. During this process, the two squeezing rollers 49 arranged on the side of the heater 21 close to the plastic bag 2 will roll in the direction away from each other, and the plastic bag 2 squeezed by the squeezing rollers 49 will be stretched tight to avoid wrinkles during the hot pressing process. After the heating copper tube 23 is heated by the heater 21, the heat-conducting sleeve 24 can evenly distribute the heat of the heating copper tube 23 to prevent the heating copper tube 23 from squeezing the plastic bag 2. The hot pressing area of ​​the plastic bag 2 is affected by local overheating and the packaging effect.

[0057] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A packaging bag continuous automatic packaging device, comprising a transport mechanism (1) capable of driving a plurality of plastic bags (2) to move in sequence, characterized in that: Also includes: Two positioning seats (3) are symmetrically arranged on both sides of the transport mechanism (1); Two propulsion mechanisms (4) are respectively connected to the adjacent sides of the two positioning seats (3), and each propulsion mechanism (4) includes a positioning plate (16) capable of moving along a rectangular track; Two packaging mechanisms (17) are respectively connected to the two positioning plates (16); each packaging mechanism (17) comprises a positioning frame (18), a heater (21), a heating copper tube (23), a heat-conducting sleeve (24) and a driving motor (25); the positioning frame (18) is fixedly connected to the positioning plate (16); the driving motor (25) is fixedly connected to the positioning frame (18); the heater (21) is slidably arranged on a side of the driving motor (25) away from the positioning plate (16); the heating copper tube (23) is fixedly connected to an output end of the heater (21); and the heat-conducting sleeve (24) is fixedly sleeved on the outside of the heating copper tube (23); Two flattening mechanisms (33) are symmetrically arranged on the upper and lower sides of the heater (21), and each flattening mechanism (33) comprises a squeezing roller (49) capable of flattening the plastic bag (2); The packaging mechanism (17) further comprises two positioning baffles (19), two connecting support plates (22), two connecting short pins (31) and two connecting slide blocks (32). The two positioning baffles (19) are respectively fixedly connected to the side of the positioning frame (18) away from the positioning plate (16). The two connecting support plates (22) are respectively slidably connected to the sides of the two positioning baffles (19) close to each other. The two connecting support plates (22) are respectively fixedly connected to the two first racks (30). The two connecting support plates (22) are respectively fixedly connected to the two ends of the heater (21). The positioning baffle (19) is formed with connecting through holes (20). The two connecting short pins (31) are respectively slidably connected to the two connecting through holes (20). One end of the connecting short pin (31) is fixedly connected to the connecting support plate (22), and the other end is fixedly connected to the connecting slide block (32). The flattening mechanism (33) further comprises two first magnets (34), two second magnets (35), two second racks (36) and two limit pins (38); the two first magnets (34) are respectively fixedly connected to the two connecting sliders (32); the two second magnets (35) are respectively connected to the two first magnets (34) by magnetic force; the two second racks (36) are respectively slidably connected to the two positioning baffles (19) and are fixedly connected to the corresponding second magnets (35); a limit through hole (37) is formed on the second rack (36); the limit pin (38) is slidably connected to the limit through hole (37) and is fixedly connected to the positioning baffle (19); The flattening mechanism (33) further comprises two second gears (39), two first pulleys (40), two second pulleys (41), two positioning supports (42), two positioning rope seats (43), two rope reels (44), two lifting slide blocks (45) and two adapters (46); the two second gears (39) are respectively meshed with the two second racks (36); the two first pulleys (40) are respectively coaxially fixedly connected with the two second gears (39); the two second pulleys (41) are respectively connected to the two first pulleys (40) through belts; the two positioning supports (42) are respectively fixedly connected to the two positioning baffles (19); the two positioning ropes (44) are respectively connected to the two second racks (36); The seats (43) are respectively fixedly connected to the sides of the two positioning supports (42) away from the positioning baffle (19), the two rope reels (44) are respectively fixedly connected to the two positioning rope seats (43), the input ends of the two rope reels (44) are respectively fixedly connected to the two second pulleys (41) coaxially, the two lifting sliders (45) are respectively slidably connected to the two positioning supports (42) through springs, the two lifting sliders (45) are respectively fixedly connected to the output ends of the two rope reels (44), the two adapters (46) are respectively arranged on the sides of the two lifting sliders (45) close to the squeezing roller (49), and the two adapters (46) are respectively rotatably connected to the two ends of the squeezing roller (49); The flattening mechanism (33) further comprises two extrusion pins (47) and two extrusion tension springs (48); the two extrusion pins (47) are respectively slidably connected to the two lifting sliders (45); one end of the two extrusion pins (47) is respectively fixedly connected to the two adapters (46); the two extrusion tension springs (48) are respectively sleeved on the outside of the two extrusion pins (47); one end of the two extrusion tension springs (48) is respectively fixedly connected to the two lifting sliders (45); and the other end is respectively fixedly connected to the two extrusion pins (47).

2. The continuous automatic packaging device for packaging bags according to claim 1, characterized in that: The propulsion mechanism (4) further comprises a dual-axis motor (5), two positioning side plates (6), four positioning guide rails (8) and two deflection rockers (13); the dual-axis motor (5) is fixedly connected to the positioning seat (3); the two positioning side plates (6) are symmetrically arranged on both sides of the dual-axis motor (5); the two deflection rockers (13) are rotatably arranged on the sides of the two positioning side plates (6) away from the dual-axis motor (5); one end of the two deflection rockers (13) is respectively coaxially fixedly connected to two output ends of the dual-axis motor (5); the upper and lower sides of each positioning side plate (6) are respectively fixedly connected to a positioning guide rail (8); and the positioning guide rail (8) is fixedly connected to the positioning seat (3).

3. The continuous automatic packaging device for packaging bags according to claim 2, characterized in that: The propulsion mechanism (4) further comprises four positioning slide blocks (9), two sliding support rods (10), two positioning connection blocks (11), two positioning short pins (12) and two connection frames (15); a rectangular groove (7) is formed on the side of the positioning side plate (6) away from the dual-axis motor (5); a strip-shaped through hole (14) is formed on the deflection rocker (13); the positioning short pin (12) is slidably connected to the strip-shaped through hole (14); one end of the positioning short pin (12) is slidably connected to the rectangular groove (7) and the other end is fixedly connected to the positioning connection block (11); the positioning connection block (11) is fixedly connected to the sliding support rod (10); each positioning guide rail (8) is slidably connected to a positioning slide block (9); the two ends of each sliding support rod (10) are respectively slidably connected to the corresponding two positioning slide blocks (9); one end of the connection frame (15) is fixedly connected to the positioning plate (16) and the other end is fixedly connected to the sliding support rod (10).

4. The continuous automatic packaging device for packaging bags according to claim 3, characterized in that: The packaging mechanism (17) further comprises a first bevel tooth (26), a second bevel tooth (27), a driving roller shaft (28), two first gears (29) and two first racks (30); the first bevel tooth (26) is coaxially fixedly connected to the output end of the driving motor (25); the second bevel tooth (27) is meshed with the first bevel tooth (26); the driving roller shaft (28) is coaxially fixedly connected to the second bevel tooth (27); the two first gears (29) are coaxially fixedly connected to both ends of the driving roller shaft (28); and the two first racks (30) are meshed with the two first gears (29) respectively.

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