Double-cutter swinging stringing bag making machine

Abstract

The utility model discloses a double-blade swinging stringing bag making machine, which comprises a rack, an unwinding end and a winding end, which are arranged along a film material conveying direction; a bag bottom swinging assembly; the bag bottom heat sealing assembly is configured to conduct heat sealing on the film material between the two bag bottom film guide rollers when the bag bottom film guide rollers move towards the unwinding end; the lifting rope swinging assembly comprises two lifting rope film guide rollers which are spaced from each other and are relatively fixed in position; the lifting rope heat sealing assembly is configured to perform heat sealing on the film material between the two lifting rope film guide rollers when the lifting rope film guide rollers move towards the unwinding end; the lifting rope swing assembly is matched with conveying of the film materials, and the film materials between the two lifting rope film guide rollers and the lifting rope heat sealing assembly are in a relatively static state during heat sealing. The double-cutter swing stringing bag making machine is reasonable in structure, in the bag bottom heat sealing process and the lifting rope heat sealing process of the garbage bag, conveying of a film material at the heat sealing procedure part does not need to be stopped, heat sealing of the film material does not affect the conveying speed of a production line, and therefore the manufacturing efficiency of the garbage bag is improved.

Description

Technical Field

[0001] The utility model relates to the field of garbage bag manufacturing, in particular to a double-knife swing stringing bag making machine. Background Art

[0002] The production of stringing bags is realized through processes such as unwinding a whole roll of film material, folding in half, heat sealing, cutting the line, winding, synchronously conveying the carrying ropes, folding and heat sealing to limit the carrying ropes.

[0003] In the prior art, the heat sealing of garbage bags is achieved through a hot knife. During the heat sealing process, the hot knife directly contacts the heat sealing position of the film material. During the contact process, the film material at the heat sealing process part is in a sudden stop state to prevent the film material from being pulled by the continuous feeding of the film material, resulting in deformation or even breakage of the film material; when the heat sealing is completed, the film material at the heat sealing process part continues to be fed and conveyed.

[0004] Although the above heat sealing method can achieve the heat sealing of the film material, the pause during heat sealing affects the transmission efficiency of the entire production line, thereby affecting the manufacturing efficiency of garbage bags.

[0005] Therefore, it is necessary to improve the heat sealing of garbage bags in the prior art. Summary of the Utility Model

[0006] The purpose of the utility model is to overcome the defects existing in the prior art and provide a double-knife swing stringing bag making machine. During the heat sealing of the bag bottom of the garbage bag and the heat sealing of the carrying ropes of the garbage bag, the film material at the heat sealing process part does not need to stop transmission, and the heat sealing of the film material does not affect the transmission speed of the production line, thereby improving the manufacturing efficiency of garbage bags.

[0007] To achieve the above technical effects, the technical solution of the utility model is: a double-knife swing stringing bag making machine, comprising:

[0008] A frame having an unwinding end and a winding end arranged along the film material transmission direction;

[0009] A bag bottom swing assembly movably connected to the frame and linearly reciprocating along the film material transmission direction, including two mutually spaced and relatively fixed bag bottom film guiding rollers;

[0010] A bag bottom heat sealing assembly connected to the frame and arranged in the interval between the bag bottom film guiding rollers, configured to heat seal the film material between the two bag bottom film guiding rollers when the bag bottom film guiding rollers move towards the unwinding end; including a fixedly arranged bag bottom supporting plate and a liftable bag bottom hot knife, the extending direction of the bag bottom hot knife is perpendicular to the film material transmission direction, and the film material is arranged between the bag bottom supporting plate and the bag bottom hot knife;

[0011] The bottom bag swinging assembly cooperates with the conveyance of the film material, and makes the film material between the two bottom bag film guide rollers be in a relatively static state with the bottom bag heat-sealing assembly during heat sealing;

[0012] The handle rope swinging assembly is movably connected to the machine frame and reciprocates linearly along the film material conveyance direction, and includes two spaced-apart and relatively fixed-positioned handle rope film guide rollers;

[0013] The handle rope heat-sealing assembly is connected to the machine frame and is arranged in the space between the handle rope film guide rollers, and is configured to heat-seal the film material between the two handle rope film guide rollers when the handle rope film guide rollers move towards the unwinding end; it includes a fixedly arranged film material support plate and a liftable film material hot knife, the extending direction of the film material hot knife is parallel to the film material conveyance direction, and the film material is arranged between the film material support plate and the film material hot knife;

[0014] The handle rope swinging assembly cooperates with the conveyance of the film material, and makes the film material between the two handle rope film guide rollers be in a relatively static state with the handle rope heat-sealing assembly during heat sealing.

[0015] Preferably, the bottom bag swinging assembly includes a first slide rail fixedly arranged on the machine frame and a first slider slidably connected to the first slide rail, the extending direction of the first slide rail is parallel to the film material conveyance direction; a first driving assembly for driving the first slider to perform reciprocating linear motion is arranged between the machine frame and the first slider; the bottom bag film guide roller is rotationally connected to the first slider.

[0016] Preferably, the first driving assembly includes a first driving roller rotatably connected to the machine frame, a first gear, and a first belt sleeved outside the first driving roller and the first gear, and the first belt is fixedly connected to the first slider.

[0017] Preferably, the first driving assembly further includes a first motor for driving the first driving roller to switch between forward rotation and reverse rotation.

[0018] Preferably, the bottom bag heat-sealing assembly further includes a perforating knife, and the perforating knife is arranged adjacent to the bottom bag hot knife; a groove for the perforating knife to penetrate is arranged on the bottom bag support plate.

[0019] Preferably, it further includes a first feeding pair of rollers and a first discharging pair of rollers rotatably connected to the machine frame, the first feeding pair of rollers and the first discharging pair of rollers are arranged between the two bottom bag film guide rollers, and the first feeding pair of rollers and the first discharging pair of rollers are arranged below the bottom bag support plate.

[0020] Preferably, the handle rope swinging assembly includes a second slide rail fixedly arranged on the frame, a second slider slidably connected to the second slide rail, and the extending direction of the second slide rail is parallel to the conveying direction of the film material; a second driving assembly for driving the second slider to perform a reciprocating linear motion is arranged between the frame and the second slider; the handle rope film guiding roller is rotatably connected to the second slider.

[0021] Preferably, the second driving assembly includes a second driving roller rotatably connected to the frame, a second gear, and a second belt sleeved outside the second driving roller and the second gear, and the second belt is fixedly connected to the second slider.

[0022] Preferably, the second driving assembly further includes a second motor for driving the second driving roller to switch between forward rotation and reverse rotation.

[0023] Preferably, it further includes a second feeding pair of rollers and a second discharging pair of rollers rotatably connected to the frame, the second feeding pair of rollers and the second discharging pair of rollers are arranged between the two handle rope film guiding rollers, and the second feeding pair of rollers and the second discharging pair of rollers are arranged below the film material supporting plate.

[0024] The advantages and beneficial effects of the present utility model are as follows: The double-knife swinging rope-piercing bag making machine of the present utility model has a reasonable structure. By arranging the bag bottom swinging assembly and the handle rope swinging assembly, when the bottom of the garbage bag and the handle rope are heat-sealed, a surplus section is provided on the discharging side of the corresponding heat-sealing assembly for the film material. When the corresponding swinging assembly drives the swinging section of the film material to move towards the feeding direction side, the surplus section is conveyed and collected, and the heat-sealing section between the corresponding film guiding rollers can remain stationary, thereby avoiding the sudden stop and heat-sealing of the film material at the heat-sealing process part in the prior art and improving the production efficiency of the garbage bag. Description of the Drawings

[0025] Figure 1 is a schematic structural diagram of an embodiment of the double-knife swinging rope-piercing bag making machine of the present utility model;

[0026] Figure 2 is a schematic structural diagram of the bag bottom swinging assembly and the bag bottom heat-sealing assembly;

[0027] Figure 3 is Figure 2 an exploded view of;

[0028] Figure 4 is a schematic structural diagram of the handle rope swinging assembly and the handle rope heat-sealing assembly;

[0029] Figure 5 is Figure 4 an exploded view of;

[0030] Figure 6It is a schematic diagram of the state of the film material's movement direction;

[0031] In the figure: 1. Frame; 11. First slide rail; 12. Second slide rail; 2. Bag bottom swing assembly; 21. Bag bottom film guiding roller; 22. First slider; 3. Bag bottom heat sealing assembly; 31. Bag bottom supporting plate; 311. Groove; 32. Bag bottom hot knife; 4. Handle string swing assembly; 41. Handle string film guiding roller; 42. Second slider; 5. Handle string heat sealing assembly; 51. Film material supporting plate; 52. Film material hot knife; 61. First driving roller; 62. First gear; 63. First belt; 64. First motor; 71. First feeding pair of rollers; 72. First discharging pair of rollers; 81. Second driving roller; 82. Second gear; 83. Second belt; 84. Second motor; 91. Second feeding pair of rollers; 92. Second discharging pair of rollers; a1. Heat sealing section; a2. Remaining section. Detailed implementation manners

[0032] The following combines the drawings and embodiments to further describe the detailed implementation manners of the present utility model. The following embodiments are only used to more clearly illustrate the technical solutions of the present utility model and cannot be used to limit the protection scope of the present utility model.

[0033] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "vertical", "top", "outside", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Embodiment

[0034] As Figures 1-6 shown, the double-knife swing string-passing bag making machine of the embodiment includes:

[0035] A frame 1, having a unwinding end and a winding end arranged along the film material transmission direction;

[0036] A bag bottom swing assembly 2, movably connected to the frame 1 and linearly reciprocating along the film material transmission direction, including two mutually spaced and relatively fixed bag bottom film guiding rollers 21;

[0037] The bottom bag heat-sealing assembly 3 is connected to the frame 1 and is disposed in the space between the bottom bag film guide rollers 21, and is configured to heat-seal the film material between the two bottom bag film guide rollers 21 when the bottom bag film guide rollers 21 move towards the unwinding end; it includes a fixedly arranged bottom bag supporting plate 31 and a liftable bottom bag hot knife 32. The extending direction of the bottom bag hot knife 32 is perpendicular to the transmission direction of the film material, and the film material is disposed between the bottom bag supporting plate 31 and the bottom bag hot knife 32;

[0038] The bottom bag swinging assembly 2 cooperates with the transmission of the film material to make the film material between the two bottom bag film guide rollers 21 be in a relatively stationary state with respect to the bottom bag heat-sealing assembly 3 during heat-sealing;

[0039] The handle string swinging assembly 4 is movably connected to the frame 1 and makes a linear reciprocating motion along the film material transmission direction, and includes two mutually spaced and relatively fixed-positioned handle string film guide rollers 41;

[0040] The handle string heat-sealing assembly 5 is connected to the frame 1 and is disposed in the space between the handle string film guide rollers 41, and is configured to heat-seal the film material between the two handle string film guide rollers 41 when the handle string film guide rollers 41 move towards the unwinding end; it includes a fixedly arranged film material supporting plate 51 and a liftable film material hot knife 52. The extending direction of the film material hot knife 52 is parallel to the transmission direction of the film material, and the film material is disposed between the film material supporting plate 51 and the film material hot knife 52;

[0041] The handle string swinging assembly 4 cooperates with the transmission of the film material to make the film material between the two handle string film guide rollers 41 be in a relatively stationary state with respect to the handle string heat-sealing assembly 5 during heat-sealing.

[0042] Specifically, the bottom bag swinging assembly 2 includes a first slide rail 11 fixedly arranged on the frame 1 and a first slider 22 slidably connected to the first slide rail 11. The extending direction of the first slide rail 11 is parallel to the transmission direction of the film material; a first driving assembly for driving the first slider 22 to make a reciprocating linear motion is arranged between the frame 1 and the first slider 22; the bottom bag film guide roller 21 is rotatably connected to the first slider 22.

[0043] Through such a design, the purpose of the reciprocating linear motion of the bottom bag film guide roller 21 is achieved.

[0044] Specifically, the first driving assembly includes a first driving roller 61 rotatably connected to the frame 1, a first gear 62, and a first belt 63 sleeved outside the first driving roller 61 and the first gear 62. The first belt 63 is fixedly connected to the first slider 22.

[0045] Specifically, the first driving assembly further includes a first motor 64 for driving the first driving roller 61 to switch between forward rotation and reverse rotation.

[0046] Further, the bottom bag heat-sealing assembly 3 further includes a perforating knife, which is arranged adjacent to the bottom bag hot knife 32; the bottom bag support plate 31 is provided with a groove 311 for the perforating knife to penetrate.

[0047] With such a design, the perforating operation and the heat-sealing operation of the garbage bag are combined, the overall machine structure is more compact, and the machine cost is reduced.

[0048] Specifically, it further includes a first feeding pair of rollers 71 and a first discharging pair of rollers 72 rotatably connected to the frame 1. The first feeding pair of rollers 71 and the first discharging pair of rollers 72 are arranged between the two bottom bag film guiding rollers 21, and the first feeding pair of rollers 71 and the first discharging pair of rollers 72 are arranged below the bottom bag support plate 31.

[0049] With such a design, the film material between the first discharging pair of rollers 72 and the adjacent bottom bag film guiding roller 21 is the surplus section a2, and the film material between the two bottom bag film guiding rollers 21 is the heat-sealing section a1. As the bottom bag film guiding roller 21 moves in the feeding direction, the surplus section a2 is transmitted backward, and the heat-sealing section a1 can remain stationary.

[0050] Specifically, the handle rope swinging assembly 4 includes a second slide rail 12 fixedly arranged on the frame 1 and a second slider 42 slidably connected to the second slide rail 12. The extending direction of the second slide rail 12 is parallel to the transmission direction of the film material; a second driving assembly for driving the second slider 42 to perform a reciprocating linear motion is arranged between the frame 1 and the second slider 42; the handle rope film guiding roller 41 is rotatably connected to the second slider 42.

[0051] Specifically, the second driving assembly includes a second driving roller 81 rotatably connected to the frame 1, a second gear 82, and a second belt 83 sleeved outside the second driving roller 81 and the second gear 82. The second belt 83 is fixedly connected to the second slider 42.

[0052] Specifically, the second driving assembly further includes a second motor 84 for driving the second driving roller 81 to switch between forward rotation and reverse rotation.

[0053] Specifically, it further includes a second feeding pair of rollers 91 and a second discharging pair of rollers 92 rotatably connected to the frame 1. The second feeding pair of rollers 91 and the second discharging pair of rollers 92 are arranged between the two handle rope film guiding rollers 41, and the second feeding pair of rollers 91 and the second discharging pair of rollers 92 are arranged below the film material support plate 51.

[0054] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. A double-blade swing string bag making machine, characterized in that: include: A frame (1) having an unwinding end and a winding end arranged along a film material transmission direction; A bag bottom swinging assembly (2) is movably connected to the frame (1) and reciprocates linearly along the film material transmission direction, and comprises two bag bottom film guide rollers (21) which are spaced apart from each other and relatively fixed in position; A bag bottom heat sealing assembly (3) connected to the frame (1), arranged in the gap between the bag bottom film guide rollers (21), and configured to heat seal the film material between the two bag bottom film guide rollers (21) when the bag bottom film guide rollers (21) move toward the unwinding end; comprising a fixed bag bottom support plate (31) and a lifting bag bottom hot knife (32), wherein the extension direction of the bag bottom hot knife (32) is perpendicular to the transmission direction of the film material, and the film material is arranged between the bag bottom support plate (31) and the bag bottom hot knife (32); The bag bottom swinging assembly (2) cooperates with the transmission of the film material, so that the film material between the two bag bottom film guide rollers (21) and the bag bottom heat sealing assembly (3) are in a relatively static state during heat sealing; A lifting rope swing assembly (4) is movably connected to the frame (1) and reciprocates linearly along the film material transmission direction, and comprises two lifting rope film guide rollers (41) which are spaced apart from each other and relatively fixed in position; A rope heat sealing assembly (5) is connected to the frame (1), arranged in the gap between the rope film guide rollers (41), and configured to heat seal the film material between the two rope film guide rollers (41) when the rope film guide rollers (41) move toward the unwinding end; it comprises a fixed film material support plate (51) and a lifting film material hot knife (52), the extension direction of the film material hot knife (52) is parallel to the transmission direction of the film material, and the film material is arranged between the film material support plate (51) and the film material hot knife (52); The lifting rope swinging assembly (4) cooperates with the transmission of the film material, so that the film material between the two lifting rope film guide rollers (41) and the lifting rope heat sealing assembly (5) are in a relatively static state during heat sealing.

2. The double-blade swing string bag making machine according to claim 1 is characterized in that: The bag bottom swinging assembly (2) comprises a first slide rail (11) fixedly arranged on the frame (1), and a first slider (22) slidably connected to the first slide rail (11), wherein the extension direction of the first slide rail (11) is parallel to the transmission direction of the film material; a first driving assembly for driving the first slider (22) to perform reciprocating linear motion is arranged between the frame (1) and the first slider (22); and the bag bottom film guide roller (21) is rotatably connected to the first slider (22).

3. The double-blade swing string bag making machine according to claim 2 is characterized in that: The first driving assembly comprises a first active roller (61) rotatably connected to the frame (1), a first gear (62), and a first belt (63) sleeved outside the first active roller (61) and the first gear (62), and the first belt (63) is fixedly connected to the first sliding block (22).

4. The double-blade swing string bag making machine according to claim 3 is characterized in that: The first driving assembly further comprises a first motor (64) for driving the first active roller (61) to switch between forward rotation and reverse rotation.

5. The double-blade swing string bag making machine according to claim 1 is characterized in that: The bag bottom heat sealing assembly (3) further comprises a point breaking knife, which is arranged adjacent to the bag bottom hot sealing knife (32); the bag bottom supporting plate (31) is provided with a groove (311) for the point breaking knife to penetrate.

6. The double-blade swing string bag making machine according to claim 1 is characterized in that: It also includes a first pair of feed rollers (71) and a first pair of discharge rollers (72) rotatably connected to the frame (1); the first pair of feed rollers (71) and the first pair of discharge rollers (72) are arranged between the two bag bottom film guide rollers (21); and the first pair of feed rollers (71) and the first pair of discharge rollers (72) are arranged below the bag bottom support plate (31).

7. The double-blade swing string bag making machine according to claim 1 is characterized in that: The rope lifting and swinging assembly (4) comprises a second slide rail (12) fixedly arranged on the frame (1), and a second slider (42) slidably connected to the second slide rail (12), wherein the extension direction of the second slide rail (12) is parallel to the transmission direction of the film material; a second driving assembly for driving the second slider (42) to perform reciprocating linear motion is arranged between the frame (1) and the second slider (42); and the rope lifting and film guiding roller (41) is rotatably connected to the second slider (42).

8. The double-blade swing string bag making machine according to claim 7 is characterized in that: The second driving assembly comprises a second active roller (81) rotatably connected to the frame (1), a second gear (82), and a second belt (83) sleeved outside the second active roller (81) and the second gear (82), and the second belt (83) is fixedly connected to the second sliding block (42).

9. The double-blade swing string bag making machine according to claim 8, characterized in that: The second driving assembly further comprises a second motor (84) for driving the second active roller (81) to switch between forward rotation and reverse rotation.

10. The double-blade swing string bag making machine according to claim 1, characterized in that: It also includes a second pair of feed rollers (91) and a second pair of discharge rollers (92) rotatably connected to the frame (1); the second pair of feed rollers (91) and the second pair of discharge rollers (92) are arranged between the two rope film guide rollers (41); the second pair of feed rollers (91) and the second pair of discharge rollers (92) are arranged below the film material support plate (51).

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