Full-automatic edge sealing packaging machine

Abstract

The utility model relates to a full-automatic edge sealing packaging machine which comprises a machine frame, a conveying mechanism, a film feeding mechanism, a transverse cutting mechanism and an edge sealing mechanism are arranged on the machine frame, the transverse cutting mechanism comprises an upper cutter, a lower cutter, supporting rods, an upper sliding seat, a lower sliding seat, a driving shaft, a transmission arm, a first connecting rod, a second connecting rod and a driving air cylinder, and the two supporting rods are fixedly erected on the machine frame. The upper sliding seat and the lower sliding seat are slidably arranged on the supporting rod, the driving shaft is rotatably arranged on the rack and is in transmission connection with the driving air cylinder, and the two transmission arms are fixedly connected to the two ends of the driving shaft respectively. The other end of the first connecting rod and the other end of the second connecting rod are hinged to the upper sliding seat and the lower sliding seat respectively, and the upper cutter and the lower cutter are arranged on the upper sliding seat and the lower sliding seat respectively. According to the full-automatic edge sealing packaging machine, the upper cutter and the lower cutter are synchronously driven to reciprocate to transversely cut a heat sealing film, the cutter stroke of single-time transverse cutting is shortened, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment technology, and in particular to a fully automatic side-sealing packaging machine. Background Technology

[0002] A side-sealing machine is a fully automated online shrink-packing device for products. Its main working principle involves wrapping a folded heat-sealing film around the product, then a transverse cutting mechanism cuts the film along its length, and a side-sealing mechanism seals the folded opening, forming a closed bag that completely encloses the product. Subsequent heat shrinking completes the packaging. The transverse cutting mechanism's sealing operation is achieved by the relative longitudinal movement of two vertically distributed sealing strips. However, the traditional method of driving only the upper sealing strip results in a long stroke for each sealing action, affecting efficiency.

[0003] To address the aforementioned problems, this utility model provides improvements. Utility Model Content

[0004] This utility model proposes a fully automatic side-sealing packaging machine, which solves the above-mentioned problems existing in the use of the prior art.

[0005] The technical solution of this utility model is implemented as follows:

[0006] A fully automatic side-sealing packaging machine includes a frame, on which a conveying mechanism, a film feeding mechanism, a cross-cutting mechanism, a side-sealing mechanism, and a film collecting mechanism are arranged. The cross-cutting mechanism includes an upper cutter and a lower cutter. The cross-cutting mechanism also includes support rods, an upper slide, a lower slide, a drive shaft, a transmission arm, a first connecting rod, a second connecting rod, and a drive cylinder. Two support rods are fixedly erected on the frame. The upper slide and lower slide are slidably disposed on the support rods. The drive shaft is rotatably disposed on the frame and is connected to the drive cylinder. Two transmission arms are symmetrically fixedly connected to both ends of the drive shaft. One end of the first and second connecting rods is hinged to both ends of the transmission arm, and the other end of the first and second connecting rods is hinged to the upper slide and lower slide, respectively. The upper cutter and lower cutter are respectively disposed on the upper slide and lower slide.

[0007] Preferably, the cross-cutting mechanism further includes an adjusting seat, which is slidably mounted on a support rod. At least three first adjusting screws are rotatably mounted on the frame and screwed onto the adjusting seat. Several first adjusting screws are linked together by a sprocket and a chain. A first adjusting handwheel is fixedly connected to one of the first adjusting screws. The drive shaft is rotatably mounted on the adjusting seat, and the drive cylinder is hinged to the adjusting seat.

[0008] Preferably, the lower cutter is fixedly connected to a plurality of lower sliding rods passing through the lower slide seat, and a lower buffer spring is sleeved on the lower sliding rods located between the lower cutter and the lower slide seat. The upper cutter is fixedly connected to the upper slide seat and is opposite to the lower cutter via a connecting rod.

[0009] Preferably, the upper slide block is provided with a plurality of upper sliding rods, and two pre-pressure plates located on both sides of the upper cutter are fixedly connected to the upper sliding rods by connecting blocks. An upper buffer spring is sleeved on the upper sliding rod between the connecting block and the upper slide block. Under normal conditions, the lower end of the pre-pressure plate is lower than the lower end of the upper cutter.

[0010] Preferably, the side sealing mechanism includes a support plate, an upper conveyor belt, a lower conveyor belt, a cutter holder, a hot cutter, and a cutter cylinder. The support plate is mounted on the frame and located on one side of the cross-cutting mechanism. The upper and lower conveyor belts are mounted on the support plate and are connected to a drive motor mounted on the support plate. The cutter cylinder is mounted on the support plate. The cutter holder is fixedly connected to the output shaft of the cutter cylinder. The hot cutter is mounted on the cutter holder and located on one side of the upper conveyor belt.

[0011] Preferably, the side sealing mechanism further includes an adjusting frame that can be horizontally slidably mounted on the frame, a second adjusting screw that is rotatably mounted on the frame and screwed onto the adjusting frame, a second adjusting handwheel that is fixedly connected to the end of the second adjusting screw, a support plate that can be longitudinally slidably mounted on the adjusting frame, a third adjusting screw that is rotatably mounted on the adjusting frame and screwed onto the support plate, a third adjusting handwheel that is fixedly connected to the end of the third adjusting screw.

[0012] Preferably, the support plate consists of a fixed plate and a movable plate. The fixed plate is slidably mounted on the adjusting frame, and the movable plate is longitudinally slidably mounted on the fixed plate. A lifting arm is rotatably connected to the fixed plate, and a lifting link is eccentrically connected to the lifting arm. The end of the lifting link is hinged to the movable plate. The upper conveyor belt is mounted on the movable plate, and the lower conveyor belt is mounted on the fixed plate.

[0013] In summary, the beneficial effects of this utility model are as follows: when cross-cutting heat-sealing film, by synchronously driving the upper and lower cutting blades to move away from or towards each other, the formation of the cutting blades during a single cross-cutting of the heat-sealing film is shortened, the cross-cutting speed is accelerated, and thus the production efficiency is improved. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the cross-cutting mechanism in this utility model;

[0017] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is a schematic diagram of the edge sealing mechanism in this utility model;

[0019] Figure 5 This is a structural schematic diagram of the edge sealing mechanism in this utility model from another perspective.

[0020] In the diagram: 1. Frame; 2. Conveying mechanism; 21. First conveyor belt; 22. Second conveyor belt; 23. Upper folding plate; 3. Film feeding mechanism; 4. Cross-cutting mechanism; 41. Upper cutter; 42. Lower cutter; 43. Support rod; 44. Upper slide; 45. Lower slide; 46. Drive shaft; 47. Transmission arm; 48. First connecting rod; 49. Second connecting rod; 50. Drive cylinder; 51. Adjusting seat; 52. First adjusting screw; 53. First adjusting handwheel; 54. Lower sliding rod; 55. Lower buffer spring; 56. Connector 57. Upper sliding rod; 58. Pre-pressure plate; 59. Upper buffer spring; 6. Side sealing mechanism; 61. Adjusting frame; 62. Support plate; 621. Fixed plate; 622. Movable plate; 63. Upper conveyor belt; 64. Lower conveyor belt; 65. Cutter seat; 66. Hot cutter; 67. Cutter cylinder; 68. Second adjusting screw; 69. Second adjusting handwheel; 70. Third adjusting screw; 71. Third adjusting handwheel; 72. Lifting arm; 73. Lifting linkage; 8. Film taking-up mechanism; 81. Guide roller; 82. Film taking-up roller. Detailed Implementation

[0021] The following will refer to the appendix in the embodiments of this utility model. Figure 1-5 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] As shown in the figure, a fully automatic side-sealing packaging machine includes a frame 1. The frame 1 is equipped with a conveying mechanism 2, a film feeding mechanism 3, a cross-cutting mechanism 4, a side-sealing mechanism 6, and a film collecting mechanism 8. The conveying mechanism 2 is used to convey products, the film feeding mechanism 3 is used to convey and wrap heat-sealing film on the products, the cross-cutting mechanism 4 is used to heat-cut the heat-sealing film along the width direction, the side-sealing mechanism 6 is used to heat-cut the heat-sealing film along the length direction, and the film collecting mechanism 8 is used to collect the heat-sealing film waste material cut by the side-sealing mechanism 6.

[0023] The conveying mechanism 2 includes a first conveyor belt 21 and a second conveyor belt 22 respectively located on both sides of the cross-cutting mechanism 4 on the frame 1. An upper folding plate 23 and a lower folding plate are respectively provided above and below the first conveyor belt 21, and the second conveyor belt 22 is located on one side of the side sealing mechanism 6.

[0024] The film feeding mechanism 3 is mounted on the frame 1 and located on one side of the first conveyor belt 21.

[0025] The cross-cutting mechanism 4 includes an upper cutter 41 and a lower cutter 42. It also includes a support rod 43, an upper slide 44, a lower slide 45, a drive shaft 46, a transmission arm 47, a first connecting rod 48, a second connecting rod 49, and a drive cylinder 50. Two support rods 43 are fixedly erected on the frame 1. The upper slide 44 and lower slide 45 are slidably mounted on the support rods 43. The drive shaft 46 is rotatably mounted on the frame 1 and connected to the drive cylinder 50 via a swing arm transmission. Two transmission arms 47 are symmetrically fixedly connected to both ends of the drive shaft 46. One end of the first connecting rod 48 and the second connecting rod 49 is hinged to both ends of the transmission arm 47, and the other end is hinged to the upper slide 44 and the lower slide 45, respectively. The upper cutter 41 and the lower cutter 42 are respectively mounted on the upper slide 44 and the lower slide 45.

[0026] Specifically, the upper cutter 41 and the lower cutter 42 are respectively disposed on the upper slide block 44 and the lower slide block 45: a plurality of lower sliding rods 54 are fixedly connected to the lower cutter 42 and pass through the lower slide block 45; a lower buffer spring 55 is sleeved on the lower sliding rod 54 and located between the lower cutter 42 and the lower slide block 45; the upper cutter 41 is fixedly connected to the upper slide block 44 and is opposite to the lower cutter 42 through a connecting rod 56.

[0027] The edge sealing mechanism 6 includes a support plate 62, an upper conveyor belt 63, a lower conveyor belt 64, a cutter holder 65, a hot cutter 66, and a cutter cylinder 67. The support plate 62 is mounted on the frame 1 and located on one side of the cross-cutting mechanism 4. The upper conveyor belt 63 and the lower conveyor belt 64 are mounted on the support plate 62 and are connected to a drive motor mounted on the support plate 62. The cutter cylinder 67 is mounted on the support plate 62. The cutter holder 65 is fixedly connected to the output shaft of the cutter cylinder 67. The hot cutter 66 is mounted on the cutter holder 65 and located on one side of the upper conveyor belt 63.

[0028] The film taking mechanism 8 includes a guide roller 81 located on one side of the side sealing mechanism 6 on the frame 1 and a film taking roller 82 rotatably located on the frame 1 below the side sealing mechanism 6 and driven by a film taking motor on the frame 1.

[0029] In the above structure, during the film-threading operation before packaging, the heat-sealing film is wound around the guide roller of the film feeding mechanism 3 and, after being folded by the upper and lower folding plates, is positioned above and below the first conveyor belt 21, respectively. Then, the folded heat-sealing film closes and passes between the upper cutter 41 and the lower cutter 42, with the open end of the closed heat-sealing film passing between the upper conveyor belt 63 and the lower conveyor belt 64. The upper conveyor belt 63 and the lower conveyor belt 64 cooperate to press and pull the heat-sealing film. During the packaging operation, the product is placed on the first conveyor belt 21, and the product is conveyed by the conveyor belt to the space between the folded heat-sealing films. When the conveyor belt 21 reaches its end, the drive cylinder 50 drives the rotating shaft to rotate via the swing arm. The drive shaft 46 drives the transmission arm 47 to swing. The transmission arm 47, through the first connecting rod 48 and the second connecting rod 49, simultaneously drives the upper slide 44 and the lower slide 45 to move away from each other, and also drives the upper cutter 41 and the lower cutter 42 to move away from each other. This allows the product to remain within the heat-sealing film and fall onto the second conveyor belt 22 between the upper cutter 41 and the lower cutter 42. Then, the drive cylinder 50 resets and drives the drive shaft 46 to rotate in the same direction. Through the cooperation of the transmission arm 47, the first connecting rod 48, and the second connecting rod 49, the upper slide 44 and the lower slide 45 are driven, which in turn drives the upper cutter 41 and the lower cutter 42 to move away from each other. The lower cutters 42 approach each other, allowing the upper cutter 41 and lower cutter 42 to cooperate in heat-cutting the heat-sealing film along its width, completing the transverse cut. As the upper cutter 41 and lower cutter 42 approach and cooperate, the lower buffer spring 55, in conjunction with the lower sliding rod 54, allows the lower cutter 42 to elastically extend and retract on the sliding seat 45 under the pushing action of the upper cutter 41. This prevents rigid contact between the upper cutter 41 and lower cutter 42, which could tear the heat-sealing film, ensuring the quality of the transverse cut. After the transverse cut is completed, the product is conveyed forward by the second conveyor belt 22, and the heat-sealing film is conveyed forward synchronously by the upper conveyor belt 63 and the lower conveyor belt 64. The product passes by the side sealing mechanism 6. At the same time, the hot-cutting blade 66, driven by the cutting cylinder 67, cuts into the opening side of the heat-sealing film to complete the side sealing, thereby forming a closed bag covering the product and realizing product packaging. The residual material on the opening side of the heat-sealing film after being cut by the hot-cutting blade 66 is collected on the rotating take-up roller 82 after being guided by the guide roller 81. It can be seen that the above structure can realize fully automatic heat-sealing film packaging of products. Furthermore, since the upper cutter 41 and the lower cutter 42 move synchronously towards each other during cross-cutting, the travel distance of the upper cutter 41 and the lower cutter 42 during cross-cutting is shortened, thereby making the cross-cutting speed faster and improving production efficiency.

[0030] Additionally, the cross-cutting mechanism 4 also includes an adjusting seat 51, which is slidably mounted on the support rod 43. At least three first adjusting screws 52 are rotatably mounted on the frame 1 and screwed onto the adjusting seat 51. Several first adjusting screws 52 are linked together by a sprocket and a chain. One of the first adjusting screws 52 is fixedly connected to a first adjusting handwheel 53. The drive shaft 46 is rotatably mounted on the adjusting seat 51, and the drive cylinder 50 is hinged to the adjusting seat 51. By rotating one of the first adjusting screws 52 through the first adjusting handwheel 53, the remaining first adjusting screws 52 are driven to rotate synchronously through the sprocket and chain. The first adjusting screws 52 drive the adjusting seat 51 to slide longitudinally on the support rod 43 through the screwed engagement with the adjusting seat 51, which can adjust the overall longitudinal position of the upper cutter 41 and the lower cutter 42. When the product specifications (mainly height) change, the longitudinal position of the upper cutter 41 and the lower cutter 42 is adapted to the product specifications, thereby achieving better cross-cutting quality.

[0031] Additionally, several upper sliding rods 57 are mounted on the upper sliding seat 44. Two pre-pressure plates 58, located on either side of the upper cutter 41, are fixedly connected to the upper sliding rods 57 via connecting blocks. An upper buffer spring 59 is sleeved on the upper sliding rods 57 between the connecting blocks and the upper sliding seat 44. Under normal conditions, the lower end of the pre-pressure plate 58 is lower than the lower end of the upper cutter 41. When the upper cutter 41 and the lower cutter 42 move towards each other to cross-cut the heat-sealing film, the pre-pressure plate 58 first contacts the lower cutter 42. The heat-sealing film is positioned by the lower cutter 42, and the upper buffer spring 59 and the upper sliding rod 57 work together to elastically extend and retract on the upper slide block 44 as the upper cutter 41 and the lower cutter 42 approach each other. This keeps the heat-sealing film stable when the upper cutter 41 and the lower cutter 42 come into contact and make cross-cuts, thus ensuring the quality of the cross-cut. In addition, the pre-pressure plate 58 is set on both sides of the upper cutter 41 to prevent the electrically heated upper cutter 41 from contacting the heat-sealing film before cross-cutting and melting the heat-sealing film, thus ensuring stability during cross-cutting.

[0032] Additionally, the edge sealing mechanism 6 further includes an adjusting frame 61 that is horizontally slidably mounted on the frame 1. A second adjusting screw 68 is rotatably mounted on the frame 1 and screwed onto the adjusting frame 61. A second adjusting handwheel 69 is fixedly connected to the end of the second adjusting screw 68. A support plate 62 is longitudinally slidably mounted on the adjusting frame 61. A third adjusting screw 70 is rotatably mounted on the adjusting frame 61 and screwed onto the support plate 62. A third adjusting handwheel 71 is fixedly connected to the end of the third adjusting screw 70. The second adjusting handwheel 69 and the third adjusting handwheel 71 respectively drive the second adjusting screw 68 and the third adjusting screw 70 to rotate. The second adjusting screw 68 and the third adjusting screw 70, through screw engagement with the support plate 62 and the adjusting seat 51, respectively drive the support plate 62 to move longitudinally and the adjusting seat 51 to move horizontally, thereby realizing the position adjustment of the edge sealing mechanism 6. When the product specifications change, the position of the edge sealing mechanism 6 is adapted to the product specifications, thereby achieving better edge sealing quality.

[0033] Additionally, the support plate 62 consists of a fixed plate 621 and a movable plate 622. The fixed plate 621 is slidably mounted on the adjusting frame 61, and the movable plate 622 is longitudinally slidably mounted on the fixed plate 621. A lifting arm 72 is rotatably connected to the fixed plate 621, and a lifting link 73 is eccentrically connected to the lifting arm 72. The end of the lifting link 73 is hinged to the movable plate 622. The upper conveyor belt 63 is mounted on the movable plate 622, and the lower conveyor belt 64 is mounted on the fixed plate 621. When the heat-sealing film opening side is passed between the upper conveyor belt 63 and the lower conveyor belt 64 during the film-threading operation, the movable plate 622 is slid upward on the fixed plate 621 by swinging the lifting arm 72 and the lifting link 73, thereby moving the upper conveyor belt 63 away from the lower conveyor belt 64, thus facilitating the film-threading operation.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fully automatic side-sealing packaging machine, comprising a frame (1), wherein the frame (1) is provided with a conveying mechanism (2), a film feeding mechanism (3), a cross-cutting mechanism (4), a side-sealing mechanism (6), and a film receiving mechanism (8), wherein the cross-cutting mechanism (4) comprises an upper cutter (41) and a lower cutter (42), characterized in that: The transverse cutting mechanism (4) further includes a support rod (43), an upper slide (44), a lower slide (45), a drive shaft (46), a transmission arm (47), a first connecting rod (48), a second connecting rod (49), and a drive cylinder (50). Two support rods (43) are fixedly erected on the frame (1). The upper slide (44) and lower slide (45) are slidably mounted on the support rods (43). The drive shaft (46) is rotatably mounted on the frame (1) and connected to the drive cylinder (50). 50) Transmission connection: The two transmission arms (47) are symmetrically fixedly connected to both ends of the drive shaft (46). One end of the first connecting rod (48) and the second connecting rod (49) are respectively hinged to both ends of the transmission arm (47). The other ends of the first connecting rod (48) and the second connecting rod (49) are respectively hinged to the upper slide (44) and the lower slide (45). The upper cutter (41) and the lower cutter (42) are respectively set on the upper slide (44) and the lower slide (45).

2. The fully automatic side-sealing packaging machine according to claim 1, characterized in that: The transverse cutting mechanism (4) also includes an adjusting seat (51), which is slidably mounted on the support rod (43). At least three first adjusting screws (52) are rotatably mounted on the frame (1) and screwed onto the adjusting seat (51). Several first adjusting screws (52) are linked together by a sprocket and a chain. A first adjusting handwheel (53) is fixedly connected to one of the first adjusting screws (52). The drive shaft (46) is rotatably mounted on the adjusting seat (51), and the drive cylinder (50) is hinged to the adjusting seat (51).

3. The fully automatic side-sealing packaging machine according to claim 2, characterized in that: The lower cutter (42) is fixedly connected to a plurality of lower sliding rods (54) that pass through the lower sliding seat (45). The lower sliding rods (54) are fitted with a lower buffer spring (55) located between the lower cutter (42) and the lower sliding seat (45). The upper cutter (41) is fixedly connected to the upper sliding seat (44) and is opposite to the lower cutter (42) through a connecting rod (56).

4. The fully automatic side-sealing packaging machine according to claim 3, characterized in that: The upper slide block (44) is provided with several upper sliding rods (57). Two pre-pressure plates (58) located on both sides of the upper cutter (41) are fixedly connected to the upper sliding rods (57) by connecting blocks. An upper buffer spring (59) is sleeved on the upper sliding rods (57) between the connecting block and the upper slide block (44). Under normal conditions, the lower end of the pre-pressure plate (58) is lower than the lower end of the upper cutter (41).

5. The fully automatic side-sealing packaging machine according to claim 1, characterized in that: The side sealing mechanism (6) includes a support plate (62), an upper conveyor belt (63), a lower conveyor belt (64), a cutter seat (65), a hot cutter (66), and a cutter cylinder (67). The support plate (62) is mounted on the frame (1) and located on one side of the cross-cutting mechanism (4). The upper conveyor belt (63) and the lower conveyor belt (64) are mounted on the support plate (62) and are connected to the drive motor mounted on the support plate (62). The cutter cylinder (67) is mounted on the support plate (62). The cutter seat (65) is fixedly connected to the output shaft of the cutter cylinder (67). The hot cutter (66) is mounted on the cutter seat (65) and located on one side of the upper conveyor belt (63).

6. The fully automatic side-sealing packaging machine according to claim 5, characterized in that: The side sealing mechanism (6) further includes an adjustment frame (61) that can be horizontally slidably mounted on the frame (1). A second adjustment screw (68) is rotatably mounted on the frame (1) and screwed onto the adjustment frame (61). A second adjustment handwheel (69) is fixedly connected to the end of the second adjustment screw (68). The support plate (62) is longitudinally slidably mounted on the adjustment frame (61). A third adjustment screw (70) is rotatably mounted on the adjustment frame (61) and screwed onto the support plate (62). A third adjustment handwheel (71) is fixedly connected to the end of the third adjustment screw (70).

7. The fully automatic side-sealing packaging machine according to claim 6, characterized in that: The support plate (62) consists of a fixed plate (621) and a movable plate (622). The fixed plate (621) is slidably mounted on the adjusting frame (61). The movable plate (622) is longitudinally slidably mounted on the fixed plate (621). A lifting arm (72) is rotatably connected to the fixed plate (621). A lifting link (73) is eccentrically connected to the lifting arm (72). The end of the lifting link (73) is hinged to the movable plate (622). The upper conveyor belt (63) is mounted on the movable plate (622). The lower conveyor belt (64) is mounted on the fixed plate (621).

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