阅读说明：本技术 给袋式真空包装机 (Bag feeding type vacuum packaging machine ) 是由 宋响亮 宋成锋 于 2021-07-16 设计创作，主要内容包括：本发明涉及一种给袋式真空包装机,包括机架和转动设于机架上的转盘,转盘由电机驱动,转盘上圆周等分设有多个夹袋装置,且转盘周边上的机架上顺时针设有储袋装置、开袋装置、下料装置、捅料装置和送袋装置,所述储袋装置和转盘之间设有可将包装袋送至夹袋装置的输送装置,所述机架上还设有多个真空封装装置,所述机架上转动设有可与夹袋装置联动的凸轮,凸轮由第一气缸驱动。该给袋式真空包装机结构简单、生产速度更快且生产效率更高。(The invention relates to a bag feeding type vacuum packaging machine which comprises a rack and a rotary table rotationally arranged on the rack, wherein the rotary table is driven by a motor, a plurality of bag clamping devices are arranged on the periphery of the rotary table in an equally-divided mode, a bag storage device, a bag opening device, a discharging device, a material poking device and a bag conveying device are clockwise arranged on the rack on the periphery of the rotary table, a conveying device capable of conveying packaging bags to the bag clamping devices is arranged between the bag storage device and the rotary table, a plurality of vacuum packaging devices are further arranged on the rack, a cam capable of being linked with the bag clamping devices is rotationally arranged on the rack, and the cam is driven by a first air cylinder. The bag feeding type vacuum packaging machine is simple in structure, high in production speed and high in production efficiency.)

1. A bag feeding type vacuum packaging machine is characterized in that: including the frame with rotate the carousel of locating in the frame, the carousel is by motor drive, circumference partition is equipped with a plurality of bag clamping devices on the carousel, and clockwise is equipped with in the frame on the carousel periphery and stores up the bagging apparatus, open bagging apparatus, unloader, disclose the material device and send the bagging apparatus, it can send the wrapping bag to the conveyor who presss from both sides the bagging apparatus to store up to be equipped with between bagging apparatus and the carousel, still be equipped with a plurality of vacuum packaging device in the frame, rotate in the frame and be equipped with the cam that can link with bag clamping device, the cam is driven by first cylinder.

2. The bag-feeding type vacuum packing machine as claimed in claim 1, wherein: the bag clamping device comprises a first upright post, a left support and a right support which are arranged on a rotary table, wherein the inner sides of the left support and the right support are movably sleeved with a linkage block, the two linkage blocks are mutually meshed and provided with second upright posts, the two second upright posts are sleeved with a first tension spring, the rotary table is provided with a plurality of ejector blocks capable of ejecting the linkage blocks, the ejector blocks are driven by an ejector block cylinder, the middle parts of the left support and the right support are provided with two fixed rods, the inner sides and the outer sides of the left support and the right support are hinged with moving rods, the two moving rods are linked through a first connecting rod, one end of the first connecting rod is hinged to the lower part of one moving rod, the other end of the first connecting rod is hinged to the upper part of the other moving rod, the first upright post is movably sleeved with a rotating plate, the inner side of the rotating plate is provided with a roller capable of abutting against the cam, the outer side of the rotating plate is hinged with a second connecting rod, the other end of the second connecting rod is hinged with a connecting plate, the two ends of the connecting plate are hinged with a third connecting rod, and the other end of the third connecting rod is hinged with the moving rod, a second tension spring for driving the moving rod to swing towards the direction of the fixed rod is arranged between the two moving rods, opposite bag clamping rods are arranged at the upper parts of the fixed rod and the moving rod, and flexible objects are arranged at the heads of the bag clamping rods.

3. The bag-feeding type vacuum packing machine as claimed in claim 1, wherein: the bag storage device comprises a plurality of strip-shaped bag storage channels which are arranged on the rack and incline downwards, the bottom and two sides of the outlet of each strip-shaped bag storage channel are provided with stop bars, pressing blocks which can be supported on the packaging bags are arranged in the strip-shaped bag storage channels, and the lower parts of the pressing blocks are provided with a plurality of groups of wheels.

4. The bag-feeding type vacuum packing machine as claimed in claim 3, wherein: conveyor is equipped with the flat board including locating first lead screw transport mechanism and the second cylinder in the frame on the actuating lever of second cylinder, is equipped with a plurality of tracheas that can aim at rectangular shape storage bag passageway export on the flat board, and trachea inner connection cylinder, outer end are equipped with the suction nozzle that can support on the wrapping bag, first lead screw transport mechanism comprises motor, lead screw and nut, be equipped with first support on the nut, be equipped with the third cylinder on the first support, can press from both sides the clamp and get or loosen the solid fixed splint, move on splint articulated and the first support, and move the splint upper end and be equipped with the extension rod, the actuating lever and the extension rod outer end of third cylinder are articulated.

5. The bag-feeding type vacuum packing machine as claimed in claim 2, wherein: open bagging apparatus including locating the second support that just is located bag clamping device top in the frame, second support both sides all are equipped with the pivot, and pivot one side cover is equipped with the gear, and is equipped with in the pivot and aims at adjacent fixed pole and move the first swing arm between the pole, two gear intermeshing, wear to be equipped with the trachea of connecting the cylinder in the first swing arm, be equipped with on the trachea and support the suction nozzle on the wrapping bag, it has the fourth cylinder to articulate on the second support, and the actuating lever of fourth cylinder articulates there is the second swing arm, and the second swing arm other end is connected in the pivot.

6. The bag-feeding type vacuum packing machine as claimed in claim 2, wherein: the blanking device comprises a third support arranged on the rack, a conveying belt and a plurality of blanking channels are arranged on the third support, the tail end of each blanking channel is provided with a blanking opening aligning with adjacent fixed rods and between the adjacent fixed rods, guide plates facing the two sides of each blanking channel are arranged on the two sides of the third support, two groups of fifth cylinders are arranged on the two sides of the third support, transverse plates are arranged on driving rods of the fifth cylinders, and a plurality of stop rods capable of being inserted into the blanking channels are arranged on the transverse plates.

7. The bag-feeding type vacuum packing machine as claimed in claim 2, wherein: the poking device comprises a sixth air cylinder arranged on the rack, a push plate is arranged on a driving rod of the sixth air cylinder, and a push rod aligned between the adjacent fixed rod and the adjacent moving rod is arranged on the push plate.

8. The bag-feeding type vacuum packing machine as claimed in claim 2, wherein: the bag conveying device comprises a second screw rod conveying mechanism transversely arranged on the rack and a third screw rod conveying mechanism longitudinally arranged on the rack, the third screw rod conveying mechanism is positioned below the second screw rod conveying mechanism, the second screw rod conveying mechanism and the third screw rod conveying mechanism are both composed of a motor, a screw rod and a nut, a fourth support is arranged on the nut of the second screw rod conveying mechanism, a fixed-length clamping plate and a movable-length clamping plate which can clamp or loosen a plurality of packaging bags are arranged on the left side of the fourth support, a plurality of fixed-length clamping plates and movable-length clamping plates which can clamp or loosen a single packaging bag are arranged on the right side of the fourth support, the movable-length clamping plates and the movable-length clamping plates are both hinged with the fourth support, extension rods are arranged at the upper ends of the movable-length clamping plates and the movable-length clamping plates, each extension rod is independently provided with a driving cylinder arranged on the fourth support, the outer ends of the extension rods are hinged with a driving rod of the driving cylinder, a fifth support is arranged on the nut of the third screw rod conveying mechanism, the fifth support is provided with a plurality of groups of clamps capable of aligning the fixed-length clamping plates and the movable-length clamping plates, each group of clamps comprises a left clamping block and a right clamping block, and the left clamping block and the right clamping block are driven by a seventh cylinder arranged on the fifth support.

9. The bag-feeding type vacuum packing machine as claimed in claim 8, wherein: the vacuum packaging device comprises a fixed pressing plate, a movable pressing plate, an eighth cylinder and a fourth screw rod transmission mechanism which are arranged on the frame, the fourth screw rod transmission mechanism is positioned above the fixed pressing plate and the movable pressing plate, the fourth screw rod conveying mechanism consists of a motor, a screw rod and a nut, the nut is provided with a sixth bracket, the sixth bracket is provided with a plurality of centering clamping plates and a moving clamping plate which can be aligned with the clamps and can clamp or loosen a plurality of packaging bags, the moving clamping plate is hinged on the sixth bracket, and the upper end of the middle splint is provided with extension rods, each extension rod is independently provided with a ninth cylinder arranged on the sixth bracket, and the extension rod outer end is articulated with the actuating lever of ninth cylinder, the movable platen left and right sides upper end all articulates there is branch, and the optical axis is worn to be equipped with by two branch's lower extreme, and the frame is located through the bearing in the optical axis both ends, the movable platen back is articulated with the actuating lever of eighth cylinder.

10. The bag-feeding type vacuum packing machine as claimed in claim 9, wherein: and the frame is provided with a blanking through hole aligned with the fixed pressing plate and the movable pressing plate.

Technical Field

The invention relates to the technical field of packaging machines, in particular to a bag feeding type vacuum packaging machine.

Background

The traditional bag feeding type packaging machine generally realizes linkage through a transmission system with a complex structure, so that the structure of equipment becomes complex, the equipment cost is higher, the whole process is long in time consumption, and the production efficiency is low.

Disclosure of Invention

In view of the shortcomings of the background art, the invention provides a bag feeding type vacuum packaging machine which is simple in structure, high in production speed and high in production efficiency.

Therefore, the invention is realized by adopting the following technical scheme:

a bag feeding type vacuum packaging machine is characterized in that: including the frame with rotate the carousel of locating in the frame, the carousel is by motor drive, circumference partition is equipped with a plurality of bag clamping devices on the carousel, and clockwise is equipped with in the frame on the carousel periphery and stores up the bagging apparatus, open bagging apparatus, unloader, disclose the material device and send the bagging apparatus, it can send the wrapping bag to the conveyor who presss from both sides the bagging apparatus to store up to be equipped with between bagging apparatus and the carousel, still be equipped with a plurality of vacuum packaging device in the frame, rotate in the frame and be equipped with the cam that can link with bag clamping device, the cam is driven by first cylinder.

Further, the bag clamping device comprises a first upright post, a left support and a right support which are arranged on a rotary table, a linkage block is movably sleeved on the inner side of the left support and the right support, the two linkage blocks are mutually meshed, a second upright post is arranged on the linkage block, a first tension spring is sleeved on the two second upright posts, a plurality of jacking blocks capable of jacking the linkage blocks are arranged on the rotary table, the jacking blocks are driven by jacking block cylinders, two fixed rods are arranged in the middle of the left support and the right support, moving rods are hinged on the inner side and the outer side of the left support and the right support, the two moving rods are linked through a first connecting rod, one end of the first connecting rod is hinged on the lower portion of one moving rod, the other end of the first connecting rod is hinged on the upper portion of the other moving rod, a rotating plate is movably sleeved on the first upright post, a roller capable of abutting against a cam is arranged on the inner side of the rotating plate, a second connecting rod is hinged on the outer side of the second connecting rod, connecting plate is hinged on the other end of the connecting plate, third connecting rod is hinged on the two ends of the connecting plate, and the other end of the third connecting rod is hinged with the moving rod, a second tension spring for driving the moving rod to swing towards the direction of the fixed rod is arranged between the two moving rods, opposite bag clamping rods are arranged at the upper parts of the fixed rod and the moving rod, and flexible objects are arranged at the heads of the bag clamping rods.

Further, store up the bagging apparatus including locating a plurality of rectangular shape storage bag passageways that incline to the downside in the frame, rectangular shape storage bag passageway export bottom and both sides all are equipped with the shelves strip, and rectangular shape storage bag passageway is equipped with the briquetting that can support on the wrapping bag, and the briquetting lower part is equipped with the multiunit wheel.

Further, conveyor is equipped with the flat board including locating first lead screw transport mechanism and the second cylinder in the frame on the actuating lever of second cylinder, is equipped with a plurality of tracheas that can aim at rectangular shape storage bag passageway export on the flat board, and trachea inner is connected cylinder, outer end and is equipped with the suction nozzle that can support on the wrapping bag, first lead screw transport mechanism comprises motor, lead screw and nut, be equipped with first support on the nut, be equipped with the third cylinder on the first support, can press from both sides the solid fixed splint, the movable clamp plate of getting or unclamping a plurality of wrapping bags, on the movable clamp plate articulated with first support, and movable clamp plate upper end is equipped with the extension rod, the actuating lever and the extension rod outer end of third cylinder are articulated.

Further, open bagging apparatus including locating the second support that just is located the clamp bagging apparatus top in the frame, second support both sides all are equipped with the pivot, and pivot one side cover is equipped with the gear, and is equipped with in the pivot and aims at adjacent fixed pole and move the first swing arm between the pole, two gear intermeshing, wear to be equipped with the trachea of connecting the cylinder in the first swing arm, be equipped with on the trachea and support the suction nozzle on the wrapping bag, it has the fourth cylinder to articulate on the second support, and the actuating lever of fourth cylinder articulates there is the second swing arm, and the second swing arm other end is connected in the pivot.

Furthermore, unloader is equipped with conveyer belt and many unloading passageways including locating the third support in the frame on the third support, and unloading passageway end is equipped with and aims at adjacent fixed pole and move the feed opening between the pole, third support both sides are equipped with the deflector towards unloading passageway both sides, and the third support both sides all are equipped with two sets of fifth cylinders, are equipped with the diaphragm on the actuating lever of fifth cylinder, are equipped with a plurality of shelves poles that can insert in the unloading passageway on the diaphragm.

Furthermore, disclose the material device including locating the sixth cylinder in the frame, be equipped with the push pedal on the actuating lever of sixth cylinder, be equipped with on the push pedal and aim at adjacent fixed pole and move the push rod between the pole.

Further, the bag feeding device comprises a second screw rod conveying mechanism transversely arranged on the rack and a third screw rod conveying mechanism longitudinally arranged on the rack, the third screw rod conveying mechanism is positioned below the second screw rod conveying mechanism, the second screw rod conveying mechanism and the third screw rod conveying mechanism are both composed of a motor, a screw rod and a nut, a fourth support is arranged on the nut of the second screw rod conveying mechanism, a fixed-length clamping plate and a movable-length clamping plate which can clamp or loosen a plurality of packaging bags are arranged on the left side of the fourth support, a plurality of fixed-length clamping plates and movable-length clamping plates which can clamp or loosen a single packaging bag are arranged on the right side of the fourth support, the movable-length clamping plate and the movable-length clamping plate are both hinged with the fourth support, extension rods are arranged at the upper ends of the movable-length clamping plate and the movable-length clamping plate, each extension rod is independently provided with a driving cylinder arranged on the fourth support, and the outer ends of the extension rods are hinged with driving rods of the driving cylinders, the nut of the third screw rod conveying mechanism is provided with a fifth support, the fifth support is provided with a plurality of groups of clamps capable of aligning to the fixed-length clamping plates and the movable-length clamping plates, each group of clamps comprises a left clamping block and a right clamping block, and the left clamping block and the right clamping block are driven by a seventh cylinder arranged on the fifth support.

Furthermore, the vacuum packaging device comprises a fixed pressing plate, a movable pressing plate, an eighth air cylinder and a fourth screw rod transmission mechanism which are arranged on the frame, the fourth screw rod transmission mechanism is positioned above the fixed pressing plate and the movable pressing plate, the fourth screw rod conveying mechanism consists of a motor, a screw rod and a nut, the nut is provided with a sixth bracket, the sixth bracket is provided with a plurality of centering clamping plates and a moving clamping plate which can be aligned with the clamps and can clamp or loosen a plurality of packaging bags, the moving clamping plate is hinged on the sixth bracket, and the upper end of the middle splint is provided with extension rods, each extension rod is independently provided with a ninth cylinder arranged on the sixth bracket, and the extension rod outer end is articulated with the actuating lever of ninth cylinder, the movable platen left and right sides upper end all articulates there is branch, and the optical axis is worn to be equipped with by two branch's lower extreme, and the frame is located through the bearing in the optical axis both ends, the movable platen back is articulated with the actuating lever of eighth cylinder.

Furthermore, the frame is provided with a blanking through hole aligned with the fixed pressing plate and the movable pressing plate.

After the technical scheme is adopted, the traditional bag feeding type packaging machine is used for completely omitting or canceling a transmission system for realizing linkage between all action parts, so that the action of each action part of the packaging machine is independently completed by a simple cylinder or a cylinder motor combination, the structure of the equipment is greatly simplified, the equipment cost is effectively reduced, and meanwhile, the production speed of the equipment is higher and the production efficiency is higher.

Drawings

The invention has the following drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the frame, carousel and single bag clamp of the present invention;

FIG. 3 is a schematic view of the construction of the bag storage and delivery apparatus of the present invention;

FIG. 4 is a schematic structural view of the bag opener of the present invention;

FIG. 5 is a schematic structural view of a blanking device according to the present invention;

FIG. 6 is a schematic structural view of a poking device according to the present invention;

FIG. 7 is a schematic view of the construction of the bag feeding device and the partial vacuum sealing device of the present invention;

FIG. 8 is a schematic structural diagram of a partial vacuum packaging apparatus according to the present invention.

Reference numerals: 1. a frame; 2. a turntable; 3. a bag clamping device; 4. a bag storage device; 5. a bag opening device; 6. a blanking device; 7. a poking device; 8. a bag feeding device; 9. a conveying device; 10. a vacuum packaging device; 11. a cam; 12. a first upright post; 13. a left support; 14. a right support; 15. a linkage block; 16. a second upright post; 17. a first tension spring; 18. a top block; 19. a top block cylinder; 20. fixing a rod; 21. a moving bar; 22. a first link; 23. a rotating plate; 24. a roller; 25. a second link; 26. connecting plates; 27. a third link; 28. a second tension spring; 29. a bag clamping rod; 30. a flexible object; 31. a strip-shaped bag storage channel; 32. a stop bar; 33. briquetting; 34. a wheel; 35. a first lead screw transmission mechanism; 36. a second cylinder; 37. a flat plate; 38. an air tube; 39. a suction nozzle; 40. a first bracket; 41. a third cylinder; 42. fixing the clamping plate; 43. a movable clamping plate; 44. an extension rod; 45. a second bracket; 46. a rotating shaft; 47. a gear; 48. a first swing arm; 49. a fourth cylinder; 50. a second swing arm; 51. a third support; 52. a conveyor belt; 53. a blanking channel; 54. a feeding port; 55. a guide plate; 56. a fifth cylinder; 57. a transverse plate; 58. a gear lever; 59. a sixth cylinder; 60. pushing the plate; 61. a push rod; 62. a second lead screw transmission mechanism; 63. a third screw rod transmission mechanism; 64. a fourth bracket; 65. fixing the length of the splint; 66. a movable long splint; 67. fixing a short splint; 68. moving the short splint; 69. a driving cylinder; 70. a fifth support; 71. a left clamp block; 72. a right clamp block; 73. a seventh cylinder; 74. fixing a pressure plate; 75. a movable platen; 76. an eighth cylinder; 77. a fourth screw rod transmission mechanism; 78. a sixth support; 79. a centering splint; 80. moving the splint; 81. a ninth cylinder; 82. a strut; 83. an optical axis; 84. and a bearing.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

Referring to the attached drawings, the bag feeding type vacuum packaging machine provided by the invention comprises a frame 1 and a rotary table 2 rotatably arranged on the frame 1, wherein the rotary table 2 is driven by a motor, a plurality of bag clamping devices 3 are equally arranged on the circumference of the rotary table 2, a bag storage device 4, a bag opening device 5, a blanking device 6, a material poking device 7 and a bag conveying device 8 are clockwise arranged on the frame 1 on the periphery of the rotary table 2, a conveying device 9 capable of conveying packaging bags to the bag clamping devices 3 is arranged between the bag storage device 4 and the rotary table 2, a plurality of vacuum packaging devices 10 are further arranged on the frame 1, a cam 11 capable of being linked with the bag clamping devices 3 is rotatably arranged on the frame 1, the cam 11 is driven by a first cylinder, the bag clamping devices 3 comprise a first upright post 12, a left support base 13 and a right support base 14, a movable linkage block 15 is arranged on the inner sides of the left and right support bases 14, the two linkage blocks 15 are mutually meshed, and a second upright post 16 is arranged on the linkage block 15, two second upright posts 16 are sleeved with a first tension spring 17, a plurality of ejector blocks 18 capable of ejecting linkage blocks 15 are arranged on the rotary table 2, the ejector blocks 18 are driven by an ejector block cylinder 19, two fixed rods 20 are arranged in the middle of the left and right supports 14, movable rods 21 are hinged on the inner sides and the outer sides of the left and right supports 14, the two movable rods 21 are linked through a first connecting rod 22, one end of the first connecting rod 22 is hinged on the lower portion of one movable rod 21, the other end of the first connecting rod is hinged on the upper portion of the other movable rod 21, a rotating plate 23 is movably sleeved on the first upright post 12, a roller 24 capable of being propped against the cam 11 is arranged on the inner side of the rotating plate 23, a second connecting rod 25 is hinged on the outer side of the rotating plate 23, the other end of the second connecting rod 25 is hinged with a connecting plate 26, third connecting rods 27 are hinged on the two ends of the connecting plate 26, the other end of the third connecting rod 27 is hinged with the movable rod 21, a second tension spring 28 capable of promoting the movable rod 21 to swing towards the direction of the fixed rods 20 is arranged between the two movable rods 21, opposite upper portions of the fixed rods 20 and the movable rods 21 are both provided with opposite bag clamping rods 29, the head of the bag clamping rod 29 is provided with a flexible object 30 (for example, rubber and other materials), the bag storage device 4 comprises a plurality of strip-shaped bag storage channels 31 inclining downwards on the frame 1, the bottom and two sides of the outlet of the strip-shaped bag storage channel 31 are provided with stop bars 32, a pressing block 33 capable of being supported on a packaging bag is arranged in the strip-shaped bag storage channel 31, the lower part of the pressing block 33 is provided with a plurality of groups of wheels 34, the conveying device 9 comprises a first screw rod conveying mechanism 35 and a second air cylinder 36 which are arranged on the frame 1, a flat plate 37 is arranged on the driving rod 21 of the second air cylinder 36, a plurality of air pipes 38 capable of being aligned with the outlet of the strip-shaped bag storage channel 31 are arranged on the flat plate 37, the inner end of each air pipe 38 is connected with an air cylinder, the outer end of each air pipe is provided with a suction nozzle 39 capable of being supported on the packaging bag, the first screw rod conveying mechanism 35 is composed of a motor, a screw rod and a nut, a first support 40 is arranged on the nut, and a third air cylinder 41, Can press from both sides and get or loosen the fixed splint 42 of a plurality of wrapping bags, move splint 43, move on splint 43 articulates and first support 40, and move splint 43 upper end and be equipped with extension rod 44, the actuating lever 21 of third cylinder 41 is articulated with extension rod 44 outer end, it includes the second support 45 that locates on frame 1 and be located bag clamping device 3 top to open bagging apparatus 5, second support 45 both sides all are equipped with pivot 46, and pivot 46 one side cover is equipped with gear 47, and is equipped with on the pivot 46 and aims at adjacent fixed pole 20 and move the first swing arm 48 between the pole 21, two gear 47 intermeshing, wear to be equipped with the trachea 38 of connecting the cylinder on the first swing arm 48, be equipped with on the trachea 38 and can support the suction nozzle 39 on the wrapping bag, it has fourth cylinder 49 to articulate on the second support 45, and the actuating lever 21 of fourth cylinder 49 articulates there is second swing arm 50, and the second swing arm 50 other end is connected in pivot 46, the blanking device 6 comprises a third support 51 arranged on the frame 1, a conveyer belt 52 and a plurality of blanking channels 53 are arranged on the third support 51, the tail end of each blanking channel 53 is provided with a blanking port 54 aligned between the adjacent fixed rod 20 and the adjacent movable rod 21, guide plates 55 facing the two sides of each blanking channel 53 are arranged on the two sides of the third support 51, two groups of fifth cylinders 56 are arranged on the two sides of each third support 51, a transverse plate 57 is arranged on a driving rod 21 of each fifth cylinder 56, a plurality of blocking rods 58 capable of being inserted into the blanking channels 53 are arranged on the transverse plate 57, the material poking device 7 comprises a sixth cylinder 59 arranged on the frame 1, a push plate 60 is arranged on the driving rod 21 of the sixth cylinder 59, a push rod 61 aligned between the adjacent fixed rod 20 and the adjacent movable rod 21 is arranged on the push plate 60, the bag feeding device 8 comprises a second lead screw conveying mechanism 62 transversely arranged on the frame 1 and a third lead screw conveying mechanism 63 longitudinally arranged on the frame 1, the third screw rod conveying mechanism 63 is located below the second screw rod conveying mechanism 62, the second screw rod conveying mechanism 62 and the third screw rod conveying mechanism 63 are composed of a motor, a screw rod and a nut, a fourth support 64 is arranged on the nut of the second screw rod conveying mechanism 62, a fixed length clamping plate 65 and a movable length clamping plate 66 which can clamp or loosen a plurality of packaging bags are arranged on the left side of the fourth support 64, a plurality of fixed length clamping plates 67 and movable length clamping plates 68 which can clamp or loosen a single packaging bag are arranged on the right side of the fourth support 64, the movable length clamping plates 66 and the movable length clamping plates 68 are both hinged to the fourth support 64, extension rods 44 are arranged at the upper ends of the movable length clamping plates 66 and the movable length clamping plates 68, each extension rod 44 is independently provided with a driving cylinder 69 arranged on the fourth support 64, the outer end of each extension rod 44 is hinged to a driving rod 21 of the driving cylinder 69, a fifth support 70 is arranged on the nut of the third screw rod conveying mechanism 63, the fifth bracket 70 is provided with a plurality of groups of clamps capable of aligning the fixed-length clamp plates 65 and the movable-length clamp plates 66, each group of clamps comprises a left clamp block 71 and a right clamp block 72, the left clamp block and the right clamp block 72 are driven by a seventh air cylinder 73 arranged on the fifth bracket 70, the vacuum packaging device 10 comprises a fixed pressure plate 74, a movable pressure plate 75, an eighth air cylinder 76 and a fourth screw rod transmission mechanism 77 which are arranged on the frame 1, the fourth screw rod transmission mechanism 77 is positioned above the fixed pressure plate 74 and the movable pressure plate 75, the fourth screw rod transmission mechanism 77 consists of a motor, a screw rod and a nut, the nut is provided with a sixth bracket 78, the sixth bracket 78 is provided with a plurality of centering clamp plates 79 and a middle clamp plate 80 which can align the clamps and clamp or loosen a plurality of packaging bags, the middle clamp plate 80 is hinged on the sixth bracket 78, the upper end of the middle clamp plate 80 is provided with an extension rod 44, each extension rod 44 is independently provided with a ninth air cylinder 81 arranged on the sixth bracket 78, and the outer end of the extension rod 44 is hinged to the driving rod of the ninth cylinder 81, the upper ends of the left and right sides of the movable platen 75 are hinged to the supporting rods 82, the lower ends of the two supporting rods 82 penetrate through the optical axis 83, the two ends of the optical axis 83 are arranged on the frame 1 through the bearings 84, the back surface of the movable platen 75 is hinged to the driving rod of the eighth cylinder 76, and the frame 1 is provided with a blanking through hole aligning the fixed platen 74 and the movable platen 75.

The working principle of the invention is as follows:

1. the stacked packaging bags are placed into the strip-shaped bag storage channel 31, the first packaging bag is abutted against the baffle strip 32, the last packaging bag is pressed by the pressing block 33, the air pipe 38 on the flat plate 37 is aligned with the first packaging bag, a plurality of products to be packaged are placed on the conveying belt 52, and the products are conveyed into the blanking channel 53 by the conveying belt 52 and are blocked by the baffle rod 58;

2. the second air cylinder 36 is driven to enable the flat plate 37, the air pipe 38 and the suction nozzle 39 to move towards the first packaging bag, the suction nozzle 39 is abutted against the first packaging bag, then the second air cylinder 36 is driven to transfer the packaging bag outwards to a position between a fixed clamping plate 42 and a movable clamping plate 43, then the third air cylinder 41 is driven to drive an extension rod 44 and the movable clamping plate 43 to swing, the fixed clamping plate 43 and the fixed clamping plate 42 clamp the packaging bag, and finally a motor of the first screw rod transmission mechanism 35 is started to drive a screw rod to rotate, so that the nut, the first support 40 and the packaging bag move to the bag clamping device 3 together;

3. when the packaging bag is taken to the bag clamping device 3, the ejecting block air cylinder 19 is driven to enable the ejecting block 18 to move upwards to eject the linkage blocks 15, the two linkage blocks 15 swing outwards simultaneously to enable bag clamping rods 29 on two sides to be separated, the packaging bag moves to enter a space between the bag clamping rods 29, then the ejecting block air cylinder 19 is driven to enable the ejecting block 18 to reset downwards, the two linkage blocks 15 swing inwards under the action force of the first tension spring 17 to enable flexible objects 30 of the bag clamping rods 29 to clamp the packaging bag (one end of the upper end of the packaging bag is clamped by the opposite fixed rods 20, and the other end of the upper end of the packaging bag is clamped by the opposite movable rods 21);

4. the driving motor drives the turntable 2 to intermittently rotate, each time the turntable 2 intermittently rotates, the first air cylinder is driven to make the cam 11 rotate along with the turntable 2, the roller 24 can always abut against the convex surface of the cam 11, when a packaging bag is conveyed to the lower part of the bag opening device 5 along with the bag clamping device 3, the fourth air cylinder 49 is driven to drive the second swing arm 50 to swing downwards to make the rotating shaft 46 rotate, the rotating shaft 46 drives the first swing arm 48 to swing to make the suction nozzle 39 abut against the left and right surfaces of the packaging bag, then the first air cylinder is driven to reversely rotate to make the roller 24 separate from the convex surface and enter the curved surface part of the cam 11, at the moment, the upper parts (clamping rods and flexible objects 30) of the two moving rods 21 swing towards the direction of the fixed rod 20 (to make the upper end of the packaging bag close for a certain distance under the action force of the second tension spring 28 and the limitation of the first connecting rod 22, so that the suction nozzle 39 can conveniently open the bag, the moving rod 21 on the inner side of the support seat drives the third connecting rod 27, The connecting plate and the second connecting rod 25 move outwards to drive the rotating block to swing so that the roller 24 enters the curved surface part of the cam 11, and finally the fourth cylinder 49 is driven to drive the second swing arm 50 to swing upwards, so that the suction nozzle 39 drives the two sides of the packaging bag to open outwards accurately;

5. the opened packaging bag is conveyed to the lower part of the blanking device 6 along with the bag clamping device 3, at the moment, the two groups of fifth cylinders 56 on the inner side are driven to drive the transverse plate 57 and the blocking rod 58 to move downwards to be separated from the blanking channel 53, so that a product to be packaged is supported on the blocking rod 58 on the outer side, then the two groups of fifth cylinders 56 on the inner side are driven to drive the blocking rod 58 to move upwards to block a subsequent product to be packaged, and finally the two groups of fifth cylinders 56 on the outer side are driven to drive the transverse plate 57 and the blocking rod 58 to move downwards to be separated from the blanking channel 53, so that a product to be packaged enters the blanking port 54 and falls into the opened packaging bag;

6. the opened packaging bag is sent to the position below the poking device 7 along with the bag clamping device 3, and at the moment, the sixth air cylinder 59 is driven to enable the push plate 60 and the push rod 61 to move downwards, so that the product to be packaged is poked to the bottom of the packaging bag accurately, and the product to be packaged is prevented from falling out of the packaging bag in the packaging process;

7. because the roller 24 of the bag clamping device 3 in the step 4 starts to enter the curved surface part of the cam 11, the upper end of the packaging bag in the step 5-6 is always in a closed state, the opened packaging bag in the step is conveyed to the next station along with the bag clamping device 3, meanwhile, the roller 24 of the bag clamping device 3 in the step enters the convex surface of the cam 11 again along with the action of the turntable 2 and the cam 11, the rotating block swings to drive the second connecting rod 25, the connecting plate and the third connecting rod 27 to move inwards, the third connecting rod 27 drives the upper part of the moving rod 21 on the inner side of the support to swing towards the direction of the cam 11, and the upper part of the moving rod 21 on the outer side of the support swings outwards along with the linkage of the first connecting rod 22, so that the opening of the packaging bag is closed;

8. the closed packaging bag is conveyed to the lower part of a second screw rod conveying mechanism 62 of a bag conveying device 8 along with a bag clamping device 3, at the moment, a driving air cylinder 69 on a short clamping plate 68 is started, an extension rod 44 and a movable short clamping plate 68 are swung downwards, so that the movable short clamping plate 68 and a fixed short clamping plate 67 clamp the upper part of the packaging bag, then a jacking block air cylinder 19 is driven to make a jacking block 18 move upwards to jack a linkage block 15, a bag clamping rod 29 loosens the packaging bag, a motor of the second screw rod conveying mechanism 62 is driven to make a nut and a fourth support 64 move towards the clamp direction, the packaging bag is conveyed to a position between a left clamping block 71 and a right clamping block 72 on the right side of a group of clamps, then the driving air cylinder 69 is started to make the short clamping plate 68 swing upwards to loosen the packaging bag, the motor of the second screw rod conveying mechanism 62 is driven to reset the fourth support 64 to repeat once again, at the moment, the fixed length clamping plate 65 and the movable long clamping plate 66 clamp the packaging bag on the right side of the clamps to the left side of the clamps, the movable short clamping plate 68 and the fixed short clamping plate 67 clamp another packaging bag again on the right side of the clamp, and then the motor of the third screw rod transmission mechanism 63 is driven to drive the fifth bracket 70, the clamp and the packaging bag to move to the vacuum packaging device 10, and meanwhile, the other clamp is aligned to the lower part of the second screw rod transmission mechanism 62 to carry out the repeated bag clamping and feeding operation;

9. after the packaging bags reach the one-side vacuum packaging device 10, the ninth air cylinder 81 is driven to enable the extension rod 44 and the middle clamping plate 80 to swing downwards, further the plurality of middle clamping plates 80 and the middle clamping plate 79 clamp all packaging bags on one group of clamps, the driving air cylinder 69 is started to enable the left clamping block 72 and the right clamping block 72 to loosen the packaging bags, the motor of the fourth screw rod transmission mechanism 77 is driven to drive the sixth support 78 to move to enable the plurality of packaging bags to enter a space between the fixed pressing plate 74 and the movable pressing plate 75, then the middle clamping plate 80 and the middle clamping plate 79 are driven to loosen the packaging bags, meanwhile, the eighth air cylinder 76 is driven to drive the movable pressing plate 75 to press the fixed pressing plate 74 to carry out vacuum packaging operation, finally the eighth air cylinder 76 is driven to enable the movable pressing plate 75 to be separated from the fixed pressing plate 74, and the packaging bags subjected to vacuum packaging enter subsequent processes through the blanking through holes.

In this embodiment, bag storage device 4 adopts the mode of giving the bag perpendicularly to be carried to clamping device 3 by conveyor 9, it is more accurate to give the bag, clamping device 3 adopts ingenious mechanical structure and cam 11 cooperation, make it can be simple quick with each other device cooperation operation, whole process completion time is shorter, production efficiency has been improved, move long splint 66, move short splint 68 and in the motion splint 80 the splint that a plurality of lengths are different can adapt to press from both sides and get single or a plurality of wrapping bags, a plurality of well splint 79 of centering, in the motion splint 80 can send multiunit wrapping bag to carry out the vacuum encapsulation operation in a plurality of vacuum packaging devices 10 simultaneously with the cooperation of multiunit anchor clamps, and all the other group anchor clamps can receive the wrapping bag that send bag device 8 to send simultaneously, make the smooth and quick work that carries out of whole equipment, production efficiency has further been improved.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.