Barrel forming mechanism of bag making machine
Through the lifting adjustment component and the swing arm driven by the cylinder, the upper formwork height adjustment and the lower formwork elastic compression are achieved, which solves the problem of poor adaptability of the barrel mechanism of the traditional bag making machine and improves versatility.
Patent Information
- Application Number
- CN202422355794.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-26
AI Technical Summary
The upper and lower templates of the barrel mechanism of the traditional bag making machine are fixed in height, which makes it only suitable for packaging bags with smaller specifications and poor usage versatility.
By setting up a lifting adjustment assembly and a swing arm driven by the cylinder, the height of the upper template and the elastic compression of the lower template are achieved, which is suitable for packaging bags of different specifications to be processed into cylinders.
It improves the versatility of the bottle-making machine's barrel mechanism, can adapt to the processing of packaging bag-based barrels in most specifications, and reduces the need to replace it with barrel mechanism.
Smart Images
Figure CN223131517U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a bag making machine, in particular to a cylinder forming mechanism of a bag making machine. Background Art
[0002] A bag making machine is a special equipment for automatic production of packaging bags. In one type of bag making machine, a cylinder forming mechanism is provided, and the cylinder forming mechanism is used for inserting and bonding the two ends of a bag body base material to form a cylindrical bag body. The traditional cylinder forming mechanism mainly includes an upper template, a lower template and side insertion templates on both sides. During operation, the side insertion templates drive the two ends of the bag body base material on the upper template to bend inward and contact each other, and glue has been applied at their two end positions. Then, the lower template is controlled to rise to tightly press the inwardly bent two ends of the bag body base material against the bottom of the upper template, thereby realizing bonding into a cylinder. The problem with this structure is that the height of the upper template is fixed, and at the same time, the lifting stroke of the lower template is also fixed, and it can only be applied to the cylinder forming of packaging bags within a relatively small specification range. When the specification of the packaging bag changes greatly, the overall cylinder forming mechanism needs to be replaced, that is, the upper template is set to the required height and the lifting stroke of the lower template is changed, resulting in poor versatility in its use. Content of the Utility Model
[0003] In view of the deficiencies in the background art, the technical problem to be solved by the present utility model is to provide a cylinder forming mechanism of a bag making machine for solving the above problems.
[0004] To this end, the present utility model is implemented as follows:
[0005] The cylinder forming mechanism of a bag making machine is characterized in that: it includes a base, an installation frame is provided on the base, the top of the installation frame is provided with an upper template, the length of the installation frame corresponds to that of the upper template, the installation frame is connected with a lifting adjustment component, and it further includes a lower template, the lower template is placed against a swing arm, the swing arm is hinged on a mounting seat, a cylinder is provided on the mounting seat, the piston rod of the cylinder is hinged to one end of the swing arm, the swing arm can drive the lower template to rise and elastically press against the bottom of the installation frame, or drive the lower template to descend and separate from the installation frame, and a first side insertion template and a second side insertion template are provided on both sides of the installation frame, and the first and second side insertion templates are connected with a moving drive component.
[0006] Guide rods are provided at the feeding ends of the first side insertion template and the second side insertion template.
[0007] The lifting adjustment component includes an adjustment nut rotatably provided on the base, the adjustment nut is screwed with an adjustment screw, the bottom of the adjustment screw has a cylindrical portion slidably provided in the base, the top of the adjustment screw is integrally provided with a support portion, and the support portion is connected with the installation frame.
[0008] A rubber wheel is provided on the swing arm, and the rubber wheel is used to contact the lower template and drive the lower template to rise or fall.
[0009] Baffles are provided at the inner extensions of the bottoms of the first side-insert template and the second side-insert template. When the swing arm swings downward, the lower template abuts against the baffles and separates from the swing arm.
[0010] The moving drive assembly includes a drive screw. A first thread section and a second thread section are provided on the drive screw. The first thread section is screwed to the first moving seat, and the first side-insert template is arranged on the first moving seat. The second thread section is screwed to the second moving seat, and the second side-insert template is arranged on the second moving seat. Guide columns are passed through the first and second moving seats.
[0011] For the tube-forming mechanism of the bag-making machine with the above technical solution, by setting the lifting and adjusting assembly to drive the mounting frame to lift and adjust the height of the upper template, so as to adapt to the tube-forming of packaging bags of corresponding specifications and sizes. At the same time, the lower template adopts the method of being driven by the swing arm of the air cylinder, which can realize the elastic pressing of the lower template and the mounting frame. That is, without changing the driving structure of the lower template, it can cooperate with the upper templates of different heights to realize tube-forming processing. This tube-forming mechanism can be used for tube-forming processing operations of most specifications of packaging bags, effectively improving its universality of use. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] The present utility model has the following drawings:
[0013] Figure 1 is a schematic structural diagram of the present utility model;
[0014] Figure 2 is Figure 1 a view from the bottom perspective. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0015] As shown in the figure, the cylinder-forming mechanism of the bag-making machine disclosed in the present utility model includes a base 20. An installation frame 22 is provided on the base 20. The top of the installation frame 22 is provided with an upper template 1. The length of the installation frame 22 corresponds to that of the upper template 1. The installation frame 22 is connected to a lifting adjustment assembly. In this embodiment, the lifting adjustment assembly includes an adjustment nut 6 rotatably provided on the base 20. The adjustment nut 6 is screwed with an adjustment screw 5. The bottom of the adjustment screw 5 has a cylindrical portion slidably provided in the base 20. The top of the adjustment screw 5 is integrally provided with a support portion 21. The support portion 21 is connected to the installation frame 22. By controlling the rotation of the adjustment nut 6, the adjustment screw 5 can be driven to rise and fall, and then the support portion 21 and the installation frame 22 can be driven to rise and fall to adjust the height of the upper template 1. Of course, in addition to the above structure, the lifting adjustment assembly can also be implemented by using common linear drive structures such as linear motors, gear-rack mechanisms, and cam mechanisms. It further includes a lower template 14. The lower template 14 abuts against a swing arm 16. The swing arm 16 is hinged on a mounting seat 18. A cylinder 17 is provided on the mounting seat 18. The piston rod of the cylinder 17 is hinged to one end of the swing arm 16. The swing arm 16 can drive the lower template 14 to rise and elastically press against the bottom of the installation frame 22, or drive the lower template 14 to descend and separate from the installation frame 22. Further, a rubber wheel 15 is provided on the swing arm 16. The rubber wheel 15 is used to contact the lower template 14 and drive the lower template 14 to rise or fall, realizing the elastic contact between the lower template 14 and the rubber wheel 15, making the cooperative transmission between the two smoother and quieter. A first side insertion template 12 and a second side insertion template 2 are provided on both sides of the installation frame 22. The first and second side insertion templates are connected to a moving drive assembly. Further, guide rods 4 are provided at the feeding ends of the first side insertion template 12 and the second side insertion template 2, which can guide the passing packaging substrate and make its movement more stable. The bottoms of the first side insertion template 12 and the second side insertion template 2 extend inwardly to form baffles 13. When the swing arm 16 swings downward, the lower template 14 abuts against the baffles 13 and separates from the swing arm 16, which can realize the lowest position limitation and support of the lower template 14. In this embodiment, the moving drive assembly includes a drive screw 7. The drive screw 7 is in transmission connection with a corresponding motor. The drive screw 7 is provided with a first thread section 9 and a second thread section. The first thread section 9 is screwed with a first moving seat 11. The first side insertion template 12 is provided on the first moving seat 11. The second thread section is screwed with a second moving seat 3. The second side insertion template 2 is provided on the second moving seat 3. Guide columns 10 are inserted through the first and second moving seats.
[0016] The working principle of the present utility model is as follows: The packaging substrate is first fed onto the upper template 1, and both ends of the packaging substrate hang down from both sides of the upper template 1. Then, the first and second side insertion templates are controlled to move closer to each other, causing both ends of the packaging substrate to bend inward and contact each other. Next, the cylinder 17 is controlled to drive the swing arm 16 to swing, driving the lower template 14 to lift, and elastically pressing the inwardly contacting part of the packaging substrate against the mounting bracket 22. Since the glue has been applied to this position of the packaging substrate, the adhesion of both ends of the packaging substrate can be achieved after pressing, realizing the cylindrical processing operation. When the specification of the packaging bag changes significantly, the lifting and adjusting assembly can be controlled to drive the mounting bracket 22 to lift and lower, adjusting the height of the upper template 1 to adapt to the specification change of the packaging bag.
[0017] With this structure of the present utility model, by setting the lifting and adjusting assembly to drive the mounting bracket to lift and lower, the height of the upper template is adjusted, thereby adapting to the cylindrical forming of packaging bags of corresponding specifications. At the same time, the lower template adopts the driving mode of the cylinder driving the swing arm, which can realize the elastic pressing between the lower template and the mounting bracket. That is, without changing the driving structure of the lower template, it can cooperate with upper templates of different heights to achieve cylindrical processing. This cylindrical forming mechanism can be used for the cylindrical processing operation of most specifications of packaging bags, effectively improving the versatility of its use.
Claims
1. The tube forming mechanism of a bag making machine, characterized in that: It includes a base (20), on which an installation frame (22) is provided. At the top of the installation frame (22), an upper template (1) is provided. The length of the installation frame (22) corresponds to that of the upper template (1). The installation frame (22) is connected to a lifting and adjusting component. It also includes a lower template (14), and the lower template (14) is placed against a swing arm (16). The swing arm (16) is hinged to a mounting seat (18). A cylinder (17) is provided on the mounting seat (18). The piston rod of the cylinder (17) is hinged to one end of the swing arm (16). The swing arm (16) can drive the lower template (14) to rise and elastically press against the bottom of the installation frame (22), or drive the lower template (14) to descend and separate from the installation frame (22). On both sides of the installation frame (22), a first side insertion template (12) and a second side insertion template (2) are provided. The first and second side insertion templates are connected to a moving drive component.
2. The tube forming mechanism of the bag making machine according to claim 1, characterized in that Guide rods (4) are provided at the feeding ends of the first side insertion template (12) and the second side insertion template (2).
3. The cylinder forming mechanism of the bag making machine according to claim 1, characterized in that The lifting and adjusting component includes an adjusting nut (6) rotatably provided on the base (20). The adjusting nut (6) is screwed to an adjusting screw (5). The bottom of the adjusting screw (5) has a cylindrical portion slidably provided in the base (20). The top of the adjusting screw (5) is integrally provided with a support portion (21), and the support portion (21) is connected to the installation frame (22).
4. The cylinder forming mechanism of the bag making machine according to claim 1, characterized in that A rubber wheel (15) is provided on the swing arm (16), and the rubber wheel (15) is used to contact the lower template (14) and drive the lower template (14) to rise or descend.
5. The tube forming mechanism of the bag making machine according to claim 1, characterized in that The bottoms of the first side insertion template (12) and the second side insertion template (2) extend inwards to form baffles (13). When the swing arm (16) swings downwards, the lower template (14) is placed against the baffles (13) and separates from the swing arm (16).
6. The cylinder forming mechanism of the bag making machine according to claim 1, characterized in that The moving drive component includes a drive screw (7). The drive screw (7) is provided with a first thread section (9) and a second thread section. The first thread section (9) is screwed to a first moving seat (11). The first side insertion template (12) is provided on the first moving seat (11). The second thread section is screwed to a second moving seat (3). The second side insertion template (2) is provided on the second moving seat (3). Guide columns (10) are passed through the first and second moving seats.