Bag making machine bottom closing device convenient to adjust

Abstract

The utility model discloses a bag making machine bottom closing device convenient to adjust, which is characterized by comprising a driving shaft in transmission connection with a motor, the driving shaft is rotatably arranged in a seat body, the driving shaft is connected with a driving gear, the driving gear is meshed with a transmission gear, a rotating shaft is arranged in the middle of the transmission gear in a penetrating manner, and the rotating shaft is meshed with the transmission gear. An insertion key is arranged on the rotating shaft, a key groove for the insertion key to be inserted is formed in the transmission gear, the two sides of the key groove penetrate through the transmission gear, a bearing is arranged in the base body to rotationally support the rotating shaft, an adjusting screw rod is rotationally arranged on the base body, and the adjusting screw rod is in threaded connection with the rotating shaft. The adjusting screw extends outwards out of the seat body, and a closing bottom plate is arranged on the rotating shaft. The position of the bottom closing plate can be conveniently adjusted, and the bottom closing device is suitable for bottom closing operation of paper bags of different specifications.

Description

Technical Field

[0001] The utility model relates to bag making equipment, in particular to a bottom closing device of a bag making machine which is easy to adjust. Background Art

[0002] The bottom closing device is an important part of the bag making machine. In one type of bag making machine, during the production process of packaging bags, the packaging bag substrate is clamped by the clamping mechanism on the drum, and then as the drum rotates, the substrate is driven to rotate to different processing stations to form the bag body, and the bottom closing device is mainly used to drive the bottom of the substrate bag to fold inward to achieve the bottom closing. The traditional bottom closing device mainly includes a bottom closing plate, one end of which is connected to the drive shaft, and the drive shaft is connected to the drive motor. The drive shaft is driven to rotate by controlling the drive motor, and then the bottom closing plate is driven to perform the bottom closing operation. The defect of this structure is that when the specifications of the paper bag change, the position of the bottom closing plate needs to be adjusted to change, but the bottom closing station of the bottom closing plate is close to the bottom position of the drum, and other components are arranged around it. It is difficult for workers to reach into this position for adjustment. It is usually necessary to set the bottom closing mechanism as a whole on a moving seat. After removing the limiting component, the moving seat is pulled out of the bottom closing station to adjust the position of the bottom closing plate, which is very inconvenient to operate. 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 bottom closing device for a bag making machine which is easy to adjust and is used to solve the above-mentioned problem.

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

[0005] A bag-making machine bottom closing device that is easy to adjust, characterized in that: it includes a driving shaft connected to the motor transmission, the driving shaft is rotatably arranged in a seat body, the driving shaft is connected to a driving gear, the driving gear is meshed with a transmission gear, a rotating shaft is passed through the middle of the transmission gear, a key is provided on the rotating shaft, a key slot for inserting the key is provided on the transmission gear, the transmission gear is provided with transmission gears on both sides, a bearing is provided in the seat body to rotatably support the rotating shaft, an adjusting screw is rotatably arranged on the seat body, the adjusting screw is threadedly connected to the rotating shaft, the adjusting screw extends out of the seat body, and a bottom closing plate is provided on the rotating shaft.

[0006] The driving gear, the transmission gear, the rotating shaft, the bottom plate, the bearing, the adjusting screw rod and the adjusting motor are arranged in two groups on the left and right sides.

[0007] One end of the driving shaft is connected with a cam, a mounting frame is arranged on the seat body, and a sensor capable of sensing the cam is arranged on the mounting frame.

[0008] A first gear is connected to the drive shaft. The first gear meshes with a second gear, the second gear meshes with a third gear, and the third gear is connected to the output end of the motor.

[0009] For a bottom-closing device of a bag-making machine that is easy to adjust in the above technical solution, by changing the transmission structure of the rotating shaft and setting an adjusting screw rod screwed to the rotating shaft, the adjusting screw rod extends out of the seat body outward. When the specification of the packaging bag changes, the adjusting screw rod can be directly controlled to rotate at this time, driving the rotating shaft to move along its axial direction, thereby adjusting the position of the bottom-closing plate. The operation is very simple, and there is no need to pull out the entire bottom-closing device for adjustment, effectively improving the user experience. Description of the Drawings

[0010] The present utility model has the following drawings:

[0011] Figure 1 It is a schematic structural diagram of the present utility model;

[0012] Figure 2 It is a view of the present utility model after removing part of the seat body housing;

[0013] Figure 3 It is a structural diagram of the rotating shaft, adjusting screw rod and transmission gear of the present utility model. Detailed Embodiments

[0014] As shown in the figure, a bottom-closing device of a bag-making machine that is easy to adjust disclosed by the present utility model includes a drive shaft 11 in transmission connection with a motor. The drive shaft 11 is rotatably arranged in a seat body 7. A drive gear 14 is connected to the drive shaft 11. The drive gear 14 meshes with a transmission gear 13. A rotating shaft 5 passes through the middle of the transmission gear 13. A key 16 is arranged on the rotating shaft 5. A keyway 15 for inserting the key 16 is arranged on the transmission gear 13. The two sides of the keyway 15 penetrate through the transmission gear 13. A bearing 12 is arranged in the seat body 7 to rotatably support the rotating shaft 5. An adjusting screw rod 4 is rotatably arranged on the seat body 7. The adjusting screw rod 4 is screwed to the rotating shaft 5. The adjusting screw rod 4 extends out of the seat body 7 outward. A bottom-closing plate 6 is arranged on the rotating shaft 5. Further, there are two sets of the drive gear 14, transmission gear 13, rotating shaft 5, bottom-closing plate 6, bearing 12 and adjusting screw rod 4 arranged left and right, which can realize bottom-closing processing on both sides. In addition, one end of the drive shaft 11 is connected to a cam 10. An installation bracket 9 is arranged on the seat body 7. An inductor 8 capable of sensing the cam 10 is arranged on the installation bracket 9, which can monitor the rotation condition of the drive shaft 11. A first gear 3 is connected to the drive shaft 11. The first gear 3 meshes with a second gear 2. The second gear 2 meshes with a third gear 1. The third gear 1 is connected to the output end of the motor. By controlling the motor to start, the drive shaft 11 can be driven to rotate through the transmission of the gear set.

[0015] The working principle of the present utility model is as follows: By controlling the rotation of the drive shaft 11, the drive gear 14 is driven to rotate, and the transmission gear 13 and the rotating shaft 5 key-connected thereto are driven to rotate, thereby driving the bottom closing plate 6 to act, and performing bottom closing processing on the packaging bag base material sent to the bottom closing station. When the rotating shaft 5 rotates, the adjusting screw rod 4 screwed thereto will also rotate accordingly. When the specification of the packaging bag changes, the motor is controlled to stop. Since the rotation of the drive shaft 11 is restricted by the first, second, and third gears when the motor stops, and the drive gear 14 and the transmission gear 13 are also restricted from rotating, at this time, by controlling the rotation of the adjusting screw rod 4, the rotating shaft 5 can be driven to move along the direction of the key groove 15, realizing the position adjustment operation of the bottom closing plate 6.

[0016] With this structure of the present utility model, by changing the transmission structure of the rotating shaft and providing that the adjusting screw rod is screwed to the rotating shaft and extends outward from the seat body, when the specification of the packaging bag changes, the adjusting screw rod can be directly controlled to rotate at this time, driving the rotating shaft to move along its axial direction, thereby adjusting the position of the bottom closing plate. The operation is very simple, and there is no need to pull out the entire bottom closing device for adjustment, effectively improving the user experience.

Claims

1. A bottom closing device for a bag making machine that is convenient for adjustment, characterized in that: It includes a drive shaft (11) drivingly connected to a motor. The drive shaft (11) is rotatably arranged in a seat body (7). A drive gear (14) is connected to the drive shaft (11). The drive gear (14) meshes with a transmission gear (13). A rotating shaft (5) passes through the middle of the transmission gear (13). A key (16) is arranged on the rotating shaft (5). A keyway (15) for inserting the key (16) is arranged on the transmission gear (13). The two sides of the keyway (15) penetrate through the transmission gear (13). A bearing (12) is arranged in the seat body (7) to rotatably support the rotating shaft (5). An adjusting screw (4) is rotatably arranged on the seat body (7). The adjusting screw (4) is screwed to the rotating shaft (5). The adjusting screw (4) extends out of the seat body (7) towards the outside. A combined bottom plate (6) is arranged on the rotating shaft (5).

2. The bottom closing device of a bag making machine that is easy to adjust according to claim 1, wherein Two sets of the drive gear (14), transmission gear (13), rotating shaft (5), combined bottom plate (6), bearing (12) and adjusting screw (4) are arranged left and right.

3. The bottom closing device of a bag making machine that is easy to adjust according to claim 1, characterized in that One end of the drive shaft (11) is connected to a cam (10). An installation bracket (9) is arranged on the seat body (7). An inductor (8) capable of sensing the cam (10) is arranged on the installation bracket (9).

4. The bottom closing device of the bag making machine that is easy to adjust according to claim 1, wherein A first gear (3) is connected to the drive shaft (11). The first gear (3) meshes with a second gear (2). The second gear (2) meshes with a third gear (1). The third gear (1) is connected to the output end of the motor.

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