Automatic bag making machine capable of conveniently adjusting corner cutting direction

Abstract

The utility model discloses an automatic bag making machine convenient to adjust the corner cutting direction, which comprises a horizontally placed conveying platform, a corner cutting machine is arranged above the conveying platform, an n-shaped mounting frame is arranged on the inner side of the lower end of the corner cutting machine, a switching roller is rotationally arranged on the inner side of the mounting frame, and the switching roller is arranged on the lower end of the conveying platform. A switching roller is arranged on the upper surface of the angle cutter, a cutter mold is mounted on the outer surface of the switching roller, a switching mechanism used for driving the switching roller to rotate is arranged on the side face of the mounting frame, a longitudinally-arranged first air cylinder is fixedly mounted on the upper surface of the angle cutter, and the lower end of the first air cylinder is fixedly connected with the mounting frame. According to the automatic bag making machine capable of conveniently adjusting the corner cutting direction, the novel structural design is adopted, when the mounting frame moves to the uppermost side, the driving gear and the driven gear are in an engaged state, at the moment, the driving gear is used for driving the driven gear to rotate, the driven gear drives the switching roller, and therefore cutter dies at different angles are automatically switched to work.

Description

Technical Field

[0001] The utility model relates to the technical field of bag making machines, and particularly relates to an automatic bag making machine which is convenient for adjusting the chamfering orientation. Background Technique

[0002] A bag making machine is a device for producing various packaging bags, which is widely used in industries such as food, medicine, chemical industry, and electronics, such as the plastic bags commonly seen in our lives. During the process of the bag making machine producing plastic bags, a chamfering mechanism is required to perform chamfering operations on the plastic bags;

[0003] In the face of plastic bags with different requirements (i.e., different designed shapes), different angles of cutting knives need to be used to cut out different angles.

[0004] In the prior art, a Chinese patent with the publication number of CN106853700A discloses a chamfering device for a round-corner packaging bag. In the chamfering punch assembly, one end of a connecting rod is connected to the piston rod of a cylinder, and the other end of the connecting rod is connected to a detachable chamfering punch located in a punching groove; the detachable chamfering punch is a punch formed by splicing four arc-shaped cutting knives, which can solve the problem of manual chamfering. Through the synchronous operation of the bag making machine, the production deviation can be minimized, the production efficiency can be improved, the manual operation and energy consumption can be reduced, and the production cost can be effectively reduced.

[0005] As can be seen from the above, in the prior art, when the chamfering angle needs to be changed, generally, the cutting knife is replaced to achieve it. However, in the actual use process, for small-batch production, the replacement frequency of the cutting knife is accelerated, and the staff needs to replace the cutting knife, which increases the workload of the staff. Content of the Utility Model

[0006] The purpose of the utility model is to provide an automatic bag making machine which is convenient for adjusting the chamfering orientation, so as to solve the problem of troublesome operation of changing the chamfering angle by replacing the cutting knife as proposed in the above background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solution: an automatic bag making machine which is convenient for adjusting the chamfering orientation, including a horizontally placed conveying platform, and a chamfering machine is installed above the conveying platform. The chamfering machine further includes:

[0008] An installation frame with an "n" - shaped structure is installed inside the lower end of the chamfering machine. A switching roller is rotatably installed inside the installation frame, and a cutting knife die is installed on the outer surface of the switching roller. A switching mechanism for driving the switching roller to rotate is arranged on the side of the installation frame;

[0009] A longitudinally arranged first cylinder is fixedly installed on the upper surface of the chamfering machine, and the lower end of the first cylinder is fixedly connected to the installation frame;

[0010] A conveyor is installed on the upper surface of the conveying platform for driving the movement of plastic bags, and the conveyor is slidably connected to an electric slide rail fixedly installed on the upper surface of the conveying platform.

[0011] Preferably, the switching mechanism includes a driven gear coaxially and fixedly installed with the rotating shaft of the switching roller, and the driven gear is located outside the mounting frame.

[0012] Preferably, a driving gear for driving its rotation is meshed above the driven gear, and the driving gear is driven to rotate by a driving motor connected thereto, and the driving motor is fixedly installed on the inner surface of the corner cutting machine.

[0013] Preferably, a rubber limiting ball is fixedly installed outside the rotating shaft of the switching roller, and the limiting ball is correspondingly engaged with a limiting groove opened inside the mounting frame.

[0014] Preferably, four groups of cutting die tools at different angles are arranged on the outer surface of the switching roller, and the cutting die tools and the switching roller form a detachable installation structure through bolts.

[0015] Preferably, a movable plate is installed above the conveyor, and fixed suction cups for adsorbing plastic bags are fixedly installed at equal intervals on the lower surface of the movable plate, and a second cylinder is fixedly installed between the lower surface of the movable plate and the upper surface of the conveyor.

[0016] Preferably, a blowing nozzle is fixedly installed on the upper surface of the conveyor, and the blowing nozzle is communicated with a small air pump fixedly installed on the upper surface of the conveyor.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: The automatic bag-making machine facilitating the adjustment of the corner cutting orientation adopts a novel structural design, and the specific content is as follows:

[0018] 1. The telescopic movement of the first cylinder drives the mounting frame to move downward, so that the mounting frame drives the switching roller to move downward synchronously. Finally, the cutting die tool on the outer surface of the switching roller is used to perform a corner cutting operation on the plastic bag. When the mounting frame moves to the uppermost side, the driving gear and the driven gear are in a meshing state. At this time, the driving gear is used to drive the driven gear to rotate, so that the driven gear drives the switching roller, thereby automatically switching to the cutting die tools at different angles for working;

[0019] Furthermore, a limiting ball is fixedly installed outside the position of the rotating shaft of the switching roller. After the switching roller rotates in place, the limiting ball is engaged into the corresponding limiting groove to achieve the purpose of limiting the switching roller and prevent it from rotating during use and affecting the corner cutting effect.

[0020] 2. Use the fixed suction cups on the lower surface of the movable plate to adsorb and fix the plastic bags that need to be chamfered. Then, the conveyor drives the movement on the electric slide rail, driving the plastic bags to the chamfering position to achieve automated operation;

[0021] Further, during the transportation of the plastic bags, the small air pump is turned on to convey air into the air-blowing nozzle. The air blown out by the air-blowing nozzle is used to blow the plastic, so that the plastic bags remain flat, avoiding folding and affecting the chamfering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the lower surface structure of the chamfering machine of the present invention;

[0024] Figure 3 It is a schematic diagram of the mounting frame structure of the present invention;

[0025] Figure 4 It is a schematic diagram of the connection relationship between the switching roller and the mounting frame of the present invention;

[0026] Figure 5 For the present invention Figure 4 The enlarged structure schematic diagram at A in;

[0027] Figure 6 It is a schematic diagram of the positional relationship between the conveyor and the electric slide rail of the present invention;

[0028] Figure 7 It is a schematic diagram of the air-blowing nozzle structure of the present invention.

[0029] In the figure: 1. Conveyor platform; 2. Chamfering machine; 3. Mounting frame; 4. Switching roller; 5. Cutting die; 6. First cylinder; 7. Driven gear; 8. Driving gear; 9. Driving motor; 10. Limiting ball; 11. Limiting groove; 12. Conveyor; 13. Electric slide rail; 14. Movable plate; 15. Fixed suction cup; 16. Second cylinder; 17. Air-blowing nozzle; 18. Small air pump. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Embodiment 1: Please refer to Figure 1 - Figure 2 and Figure 6, in order to achieve the purpose of automatically chamfering plastic bags in this embodiment, the following technical solutions are provided, and specifically disclosed: a horizontally placed conveying platform 1, a chamfering machine 2 is installed above the conveying platform 1, an installation frame 3 with an "n" - shaped structure is installed inside the lower end of the chamfering machine 2, and a switching roller 4 is rotatably installed inside the installation frame 3. A cutting die 5 is installed on the outer surface of the switching roller 4. A longitudinally arranged first cylinder 6 is fixedly installed on the upper surface of the chamfering machine 2, and the lower end of the first cylinder 6 is fixedly connected to the installation frame 3. A conveyor 12 for driving the plastic bag to move is installed on the upper surface of the conveying platform 1, and the conveyor 12 is slidably connected to an electric slide rail 13 fixedly installed on the upper surface of the conveying platform 1.

[0032] When using the device, first place the plastic bag to be chamfered as a whole on the upper surface of the rear end of the conveying platform 1. Then, use the sliding of the conveyor 12 on the electric slide rail 13 to move the plastic bag to the chamfering position (i.e., directly below the chamfering machine 2) in sequence. When the plastic bag reaches directly below the chamfering machine 2, turn on the first cylinder 6, and use the first cylinder 6 to push the installation frame 3 downward. At this time, the installation frame 3 drives the switching roller 4 inside it to move downward synchronously. Finally, the cutting die 5 on the lower surface of the switching roller 4 contacts the plastic bag to achieve the purpose of chamfering the plastic bag. After chamfering, the conveyor 12 transports the plastic bag to the upper surface of the front side of the conveying platform 1, which is convenient for the workers to take.

[0033] Embodiment Two: Please refer to Figure 2 - Figure 5 , in order to solve the problem that the traditional device is not convenient to switch the chamfering angle in this embodiment, the following technical solutions are provided, and specifically disclosed: a switching mechanism for driving the switching roller 4 to rotate is arranged on the side of the installation frame 3. The switching mechanism includes a driven gear 7 fixedly installed coaxially with the rotating shaft of the switching roller 4, and the driven gear 7 is located outside the installation frame 3. A driving gear 8 for driving it to rotate is meshed above the driven gear 7, and the driving gear 8 is driven to rotate by a driving motor 9 connected to it. The driving motor 9 is fixedly installed on the inner surface of the chamfering machine 2. A rubber - made limiting ball 10 is fixedly installed outside the rotating shaft of the switching roller 4, and the limiting ball 10 is correspondingly engaged with a limiting groove 11 opened inside the installation frame 3. Four groups of cutting dies 5 with different angles are arranged on the outer surface of the switching roller 4, and the cutting dies 5 form a detachable installation structure with the switching roller 4 through bolts.

[0034] When it is necessary to change the chamfering angle (i.e., change the chamfering orientation), first, the first cylinder 6 contracts to move the mounting bracket 3 to the uppermost side. At this time, the driving gear 8 and the driven gear 7 are in the meshing state. Then, the driving motor 9 is turned on, and the driving motor 9 drives the driving gear 8 to rotate, so that the driven gear 7 meshed with the driving gear 8 drives the switching roller 4 to rotate, thereby rotating the required cutting die 5 to the lower part. In this process, no manual replacement operation is required. When the switching roller 4 rotates in place, the limiting ball 10 outside its rotating shaft is correspondingly engaged into the limiting groove 11 to realize the limitation of the switching roller 4 and prevent it from rotating randomly subsequently.

[0035] Embodiment 3: Please refer to Figure 6 - Figure 7 , in order to solve the problem that plastic is folded during the use of the traditional device and affects the chamfering effect, the following technical solutions are provided. Specifically disclosed are: An activity plate 14 is installed above the conveyor 12, and fixed suction cups 15 for adsorbing plastic bags are fixedly installed at equal intervals on the lower surface of the activity plate 14. Moreover, a second cylinder 16 is fixedly installed between the lower surface of the activity plate 14 and the upper surface of the conveyor 12. A blast nozzle 17 is fixedly installed on the upper surface of the conveyor 12, and the blast nozzle 17 is interconnected with a small air pump 18 fixedly installed on the upper surface of the conveyor 12.

[0036] When the conveyor 12 conveys the plastic bag, first, the second cylinder 16 drives the activity plate 14 to move up and down, moving the fixed suction cups 15 below the activity plate 14 above the plastic bag. Then, the plastic bag is adsorbed by the fixed suction cups 15. After the adsorption is completed, the conveyor 12 slides outside the electric slide rail 13 to realize the conveying operation of the plastic bag. During the conveying process, the small air pump 18 is turned on, and the air in the small air pump 18 is ejected from the blast nozzle 17, and the plastic bag is blown in one direction by the air flow to prevent the plastic bag from folding.

[0037] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is 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", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0038] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic bag making machine that is convenient for adjusting the angle cutting position, comprising a horizontally placed conveying platform (1), a corner cutting machine (2) being installed above the conveying platform (1), characterized in that: Also includes: An "N"-shaped mounting frame (3) is mounted on the inner side of the lower end of the angle cutting machine (2), a switching roller (4) is rotatably mounted on the inner side of the mounting frame (3), a cutting die (5) is mounted on the outer surface of the switching roller (4), and a switching mechanism for driving the switching roller (4) to rotate is arranged on the side of the mounting frame (3); A first cylinder (6) arranged longitudinally is fixedly mounted on the upper surface of the angle cutting machine (2), and the lower end of the first cylinder (6) is fixedly connected to the mounting frame (3); A conveyor (12) for driving the plastic bags to move is installed on the upper surface of the conveying platform (1), and the conveyor (12) is slidably connected to an electric slide rail (13) fixedly installed on the upper surface of the conveying platform (1).

2. The automatic bag making machine for adjusting the cutting angle according to claim 1 is characterized in that: The switching mechanism comprises a driven gear (7) fixedly mounted coaxially with the rotating shaft of the switching roller (4), and the driven gear (7) is located outside the mounting frame (3).

3. The automatic bag making machine for adjusting the cutting angle according to claim 2 is characterized in that: The driven gear (7) is meshingly connected with a driving gear (8) on its upper side for driving the driven gear (7) to rotate, and the driving gear (8) is driven to rotate by a driving motor (9) connected thereto, and the driving motor (9) is fixedly mounted on the inner surface of the angle cutting machine (2).

4. The automatic bag making machine with easy adjustment of cutting angle according to claim 1 is characterized in that: A rubber limiting ball (10) is fixedly mounted on the outside of the rotating shaft of the switching roller (4), and the limiting ball (10) and a limiting groove (11) provided inside the mounting frame (3) are correspondingly engaged with each other.

5. The automatic bag making machine with easy adjustment of cutting angle according to claim 4 is characterized in that: Four groups of cutting dies (5) with different angles are arranged on the outer surface of the switching roller (4), and the cutting dies (5) are connected to the switching roller (4) via bolts to form a disassembly and installation structure.

6. The automatic bag making machine with convenient adjustment of cutting angle according to claim 1, characterized in that: A movable plate (14) is installed above the conveyor (12), and fixed suction cups (15) for adsorbing plastic bags are fixedly installed at equal intervals on the lower surface of the movable plate (14), and a second cylinder (16) is fixedly installed between the lower surface of the movable plate (14) and the upper surface of the conveyor (12).

7. The automatic bag making machine with convenient adjustment of cutting angle according to claim 6, characterized in that: An air blast nozzle (17) is fixedly mounted on the upper surface of the conveyor (12), and the air blast nozzle (17) and a small air pump (18) fixedly mounted on the upper surface of the conveyor (12) are in communication with each other.

Images