Bag handle forming and bonding mechanism of packaging bag

Abstract

The utility model discloses a packaging bag handle forming and bonding mechanism which comprises a first wrapping base material unwinding assembly (2), a second wrapping base material unwinding assembly (3) and a bag handle base material unwinding assembly (1), and a bag handle forming assembly (4) and a bag handle pressing and bonding assembly are sequentially arranged on an unwinding path of a bag handle base material. The device is characterized in that a glue applying assembly is arranged on the unwinding path of the first or second wrapping base material unwinding assembly, a drying oven (7) is arranged at the discharging end of the bag handle pressing and bonding assembly, the pressed and bonded bag handle is pulled to penetrate through the drying oven (7), and glue in the bag handle is rapidly dried. The device is simple in structure and reasonable in design, the bag handle can be bonded and rapidly dried through glue, the stability of follow-up operation is guaranteed, a traditional hot melt adhesive bonding mode is replaced, the device structure is simpler, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to packaging bag production equipment, in particular to a bag handle forming and bonding mechanism for the packaging bag. Background Art

[0002] Packaging bags have been widely used in our lives. One type of packaging bag has a handle at the mouth, which makes it easy to carry the bag. In the production process of the handle of this type of packaging bag, the handle substrate is first formed by a handle forming assembly, and then the handle substrate is bonded between two layers of coating substrates. The coating substrate is generally a paper roll, and finally the paper roll is cut to obtain the required handle. The traditional handle forming and bonding mechanism uses hot melt adhesive to glue the paper roll, and then the formed handle is pressed and bonded between the two layers of coating substrate. The main problems of this method in actual use are: a relatively complex hot melt adhesive coating device needs to be set up, which is troublesome to produce and assemble, and the cost of using hot melt adhesive is high, resulting in low cost performance of the produced packaging bags and lack of market competitiveness. Utility Model Content

[0003] In view of the shortcomings of the background technology, the technical problem to be solved by the utility model is to provide a bag handle forming and bonding mechanism for a packaging bag for solving the above-mentioned problem.

[0004] To this end, the utility model is implemented by adopting the following scheme:

[0005] The bag handle forming and bonding mechanism of the packaging bag comprises a first coating substrate unwinding assembly, a second coating substrate unwinding assembly and a bag handle substrate unwinding assembly, and a bag handle forming assembly and a bag handle pressing and bonding assembly are sequentially arranged on the unwinding path of the bag handle substrate. The invention is characterized in that: a water glue gluing assembly is arranged on the unwinding path of the first or second coating substrate unwinding assembly, and an oven is arranged at the discharge end of the bag handle pressing and bonding assembly, and the bag handle that has completed pressing and bonding is pulled through the oven to allow the water glue inside to dry quickly.

[0006] The bag handle pressing and bonding assembly comprises a pressing roller group arranged in an array.

[0007] The water glue gluing assembly comprises a glue box, a glue transfer roller is arranged in the glue box, a glue application roller is arranged corresponding to the glue transfer roller, and a pressure roller is arranged on one side of the glue application roller, and the pressure roller can press the passing paper roll onto the glue application roller for gluing.

[0008] The pressure roller is connected to one end of the first swing arm, the first swing arm is connected to the second swing arm, one end of the second swing arm is hinged to the frame, and the other end of the second swing arm is hinged to the piston rod of the driving cylinder.

[0009] The glue roller is provided with glue convex strips around it, and strip-shaped glue is applied on the paper roll.

[0010] A hot drying chamber and a heating chamber are arranged in the oven, a bag handle warp winding roller is arranged in the hot drying chamber, and a heating tube is arranged in the heating chamber.

[0011] A heat conduction port is provided between the hot drying chamber and the heating chamber, and a fan is provided corresponding to the heating chamber. The fan can blow the hot air in the heating chamber into the hot drying chamber through the heat conduction port, and the heat conduction port is arranged toward the bag handle through the winding roller.

[0012] The bag handle forming and bonding mechanism of the packaging bag of the above technical solution, by setting a water-glue gluing component to glue the paper roll, replaces the traditional hot-melt glue coating mechanism, makes the structure of the gluing component simpler and the equipment is convenient to assemble; at the same time, the use of water glue for bonding effectively reduces the cost of glue, making the produced packaging bags more cost-effective and have better market competitiveness; in addition, the setting of an oven to heat and dry the bag handles bonded with water glue can ensure that the water glue dries quickly and ensure the smooth progress of subsequent processing operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model has the following drawings:

[0014] Figure 1 It is a side view of the utility model;

[0015] Figure 2 for Figure 1 A partial enlarged view of the area pointed by A in the middle;

[0016] Figure 3 It is a schematic diagram of the bag handle substrate after molding and the lower coating substrate after gluing of the utility model. DETAILED DESCRIPTION

[0017] As shown in the figure, the bag handle forming and bonding mechanism of the packaging bag disclosed by the utility model includes a first coated substrate unwinding component 2, a second coated substrate unwinding component 3 and a bag handle substrate unwinding component 1, and a bag handle forming component 4 and a bag handle pressing and bonding component are sequentially arranged on the unwinding path of the bag handle substrate. Specifically, the bag handle pressing and bonding component includes an arranged pressing roller group 5. The bag handle forming component 4 is a common forming mechanism on the market, belongs to the prior art, and does not belong to the innovation point of the present application, so its specific structure will not be described in detail. A water glue gluing assembly is arranged on the unwinding path of the first or second coated substrate unwinding assembly. Specifically, the water glue gluing assembly includes a glue box 12, a glue transfer roller 13 is partially arranged in the glue box 12, a glue roller 14 is arranged corresponding to the glue transfer roller 13, and a pressure roller 15 is arranged on one side of the glue roller 14. The pressure roller 15 is connected to one end of a first swing arm 16, the first swing arm 16 is connected to a second swing arm 17, one end of the second swing arm 17 is hinged to the frame, and the other end of the second swing arm 17 is hinged to the piston rod of the driving cylinder 18. By controlling the action of the driving cylinder 18, the second swing arm 17 and the first swing arm 16 are driven to swing, so that the pressure roller 15 presses the passing paper roll on the glue roller 14 for gluing. A gluing convex strip is arranged around the glue roller 14, and a strip of glue 20 is coated on the paper roll 19. An oven 7 is provided at the discharge end of the bag handle pressing and bonding assembly. The bag handle that has completed pressing and bonding is pulled through the oven 7 to allow the water glue inside to dry quickly. Specifically, a hot drying chamber 6 and a heating chamber 8 are provided in the oven 7. The hot drying chamber 6 is provided with a bag handle warp winding roller 22, and the heating chamber 8 is provided with a heating tube 9. A heat conduction port 10 is provided between the hot drying chamber 6 and the heating chamber 8, and a fan 11 is provided corresponding to the heating chamber 8. The fan 11 can blow the hot air in the heating chamber 8 into the hot drying chamber 6 through the heat conduction port 10. The heat conduction port 10 is provided toward the bag handle warp winding roller 22 to ensure that the hot air can be delivered to the pulled bag handle in the first time to dry the water glue in the bag handle.

[0018] The working principle of the utility model is as follows: the upper coating substrate 23 is unwound by the first coating substrate unwinding assembly 2, the lower coating substrate 24 is unwound by the second coating substrate unwinding assembly 3, the bag handle substrate 25 is unwound by the bag handle substrate unwinding assembly 1, the lower coating substrate 24 will first be sent to the water glue gluing assembly for gluing, the bag handle substrate 25 is formed into a bag handle 21 by the bag handle forming assembly, and then the upper coating substrate 23, the formed bag handle 21 and the glued lower coating substrate 24 are sent to the pressing roller group 5 together, the pressing roller group 5 presses the bag handle 21 between the upper and lower coating substrates, and realizes the bonding of the three, and then it is pulled into the oven 7 for heating, so that the water glue in the bag handle is quickly dried to ensure stable bonding, and then it is sent to the next processing station to ensure that the bag handle formed and bonded during high-speed production can stably perform the next operation.

[0019] The structure of the utility model, by providing a water-glue gluing component to gluing the paper roll, replaces the traditional hot-melt glue coating mechanism, makes the structure of the gluing component simpler and the equipment is convenient to assemble; at the same time, the use of water-glue for bonding effectively reduces the cost of glue, making the produced packaging bags more cost-effective and having better market competitiveness; in addition, the setting of an oven to heat and dry the bag handles bonded with water-glue can ensure that the water-glue dries quickly, ensures stable bonding, and ensures the smooth progress of subsequent processing operations.

Claims

1. A bag handle forming and bonding mechanism for a packaging bag, comprising a first coating substrate unwinding assembly (2), a second coating substrate unwinding assembly (3) and a bag handle substrate unwinding assembly (1), wherein a bag handle forming assembly (4) and a bag handle pressing and bonding assembly are sequentially arranged on an unwinding path of the bag handle substrate, characterized in that: A water glue gluing assembly is arranged on the unwinding path of the first or second coated substrate unwinding assembly, and an oven (7) is arranged at the discharge end of the bag handle pressing and bonding assembly. The bag handle that has completed pressing and bonding is pulled through the oven (7) to allow the water glue inside to dry quickly.

2. The bag handle forming and bonding mechanism of the packaging bag according to claim 1, characterized in that The bag handle laminating and bonding assembly comprises a laminating roller group (5) arranged in an arranged manner.

3. The bag handle forming and bonding mechanism of the packaging bag according to claim 1, characterized in that The water-based glue gluing assembly comprises a glue box (12), a glue transfer roller (13) is partially arranged in the glue box (12), a glue application roller (14) is arranged corresponding to the glue transfer roller (13), and a pressure roller (15) is arranged on one side of the glue application roller (14), and the pressure roller (15) can press a passing paper roll onto the glue application roller (14) for gluing.

4. The bag handle forming and bonding mechanism of the packaging bag according to claim 3, characterized in that The pressure roller (15) is connected to one end of a first swing arm (16), the first swing arm (16) is connected to a second swing arm (17), one end of the second swing arm (17) is hinged to the frame, and the other end of the second swing arm (17) is hinged to a piston rod of a driving cylinder (18).

5. The bag handle forming and bonding mechanism of the packaging bag according to claim 3, characterized in that The glue-applying roller (14) is provided with a gluing convex strip around it, and a strip of glue (20) is applied to the paper roll (19).

6. The bag handle forming and bonding mechanism of the packaging bag according to claim 1, characterized in that A hot drying chamber (6) and a heating chamber (8) are arranged in the drying oven (7); a bag handle winding roller (22) is arranged in the hot drying chamber (6); and a heating tube (9) is arranged in the heating chamber (8).

7. The bag handle forming and bonding mechanism of the packaging bag according to claim 6, characterized in that A heat conduction port (10) is provided between the hot drying chamber (6) and the heating chamber (8), and a fan (11) is provided corresponding to the heating chamber (8). The fan (11) can blow hot air in the heating chamber (8) into the hot drying chamber (6) through the heat conduction port (10), and the heat conduction port (10) is arranged toward the bag handle through the winding roller (22).

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