Bag opening mechanism for packaging machine

Abstract

The utility model discloses a bag opening mechanism for a packing machine, which comprises a butt-joint plate, the front surface of the butt-joint plate is fixedly connected with a supporting plate, the front surface of the supporting plate is fixedly connected with a bearing plate, the right surface of the bearing plate is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a first bidirectional threaded screw rod, and the output end of the first bidirectional threaded screw rod is fixedly connected with a second bidirectional threaded screw rod. The outer surface of the first bidirectional threaded screw rod is in threaded connection with two first sliding blocks, the front surfaces of the two first sliding blocks are both fixedly connected with bearing rods, the side surfaces of the two bearing rods are both fixedly connected with a plurality of suction cups, and the lower surface of the bearing plate is fixedly connected with a second motor. And through the arrangement of a second motor, a threaded lead screw, a lifting block and other structures, movement of a moving plate and the structures on the moving plate can be achieved, a clamping and fixing structure on the moving plate can be adjusted according to packaging bags of different sizes, and then the overall practicability of the mechanism can be improved.

Description

A bag-supporting mechanism for a packaging machine Technical Field

[0001] This utility model relates to the field of packaging machines, and in particular to a bag-supporting mechanism for packaging machines. Background Technology

[0002] Packaging machines are devices used to complete the product packaging process. They have functions such as protecting products and improving their appearance. The bag-opening mechanism is an important component of the packaging machine. During the packaging process, the bag-opening mechanism is needed to open the packaging bag so that the product can be fed into the packaging bag.

[0003] In the prior art, during the use of bag-supporting mechanisms, there is usually a clamping and fixing mechanism at the bottom of the mechanism to stabilize the bag's posture and prevent the bag from falling or shifting. However, the clamping and fixing structure is usually not adjustable and cannot be adjusted according to the length of bags of different sizes, which has certain limitations. Therefore, a bag-supporting mechanism for packaging machines is needed. Summary of the Invention

[0004] The purpose of this utility model is to provide a bag-supporting mechanism for a packaging machine, which can realize the movement of the moving plate and the structure on the moving plate, so that the clamping and fixing structure on the moving plate can be adjusted according to the packaging bags of different sizes, thereby increasing the overall practicality of the mechanism.

[0005] To achieve the above objectives, a bag-supporting mechanism for a packaging machine is provided, comprising a docking plate, a support plate fixedly connected to the front surface of the docking plate, a bearing plate fixedly connected to the front surface of the support plate, a first motor fixedly connected to the right surface of the bearing plate, a first bidirectional threaded screw fixedly connected to the output end of the first motor, two first sliders threadedly connected to the outer surface of the first bidirectional threaded screw, bearing rods fixedly connected to the front surfaces of the two first sliders, and multiple suction cups fixedly connected to the side surfaces of the two bearing rods, a second motor fixedly connected to the lower surface of the bearing plate, a threaded screw fixedly connected to the output end of the second motor, a lifting block threadedly connected to the outer surface of the threaded screw, a moving plate fixedly connected to the front surface of the lifting block, a third motor fixedly connected to the right surface of the moving plate, a second bidirectional threaded screw fixedly connected to the output end of the third motor, two moving rods threadedly connected to the outer surface of the second bidirectional threaded screw, connecting plates fixedly connected to the two moving rods, and anti-slip blocks fixedly connected to the side surfaces of the two connecting plates.

[0006] According to the bag-supporting mechanism for a packaging machine, the docking plate is provided with docking grooves, and the number of docking grooves is two and they are symmetrically distributed.

[0007] According to the bag-supporting mechanism for a packaging machine, the bearing plate is provided with a lifting groove, and the outer surface of the lifting block is slidably connected to the lifting groove.

[0008] According to the bag-supporting mechanism for a packaging machine, a guide groove is provided on the bearing plate, a guide block is slidably connected to the inner surface of the guide groove, and the front surface of the guide block is fixedly connected to the moving plate.

[0009] According to the bag-supporting mechanism for a packaging machine, a first limiting groove is provided on the moving plate, and the outer surface of the moving rod is slidably connected to the first limiting groove.

[0010] According to the bag-supporting mechanism for a packaging machine, a second limiting groove is provided on the bearing plate, and the outer surface of the first slider is slidably connected to the second limiting groove.

[0011] According to the bag-supporting mechanism for a packaging machine, the first bidirectional threaded screw and the outer surface of the threaded screw are rotatably connected to the bearing plate.

[0012] According to the bag-supporting mechanism for a packaging machine, the outer surface of the second bidirectional threaded screw is rotatably connected to the moving plate, and the anti-slip block is made of rubber.

[0013] The above-mentioned solution has the following beneficial effects:

[0014] By incorporating a second motor, a threaded screw, and a lifting block, the movable plate and its structure can be moved, allowing the clamping and fixing structure on the movable plate to be adjusted according to different sizes of packaging bags, thereby increasing the overall practicality of the mechanism.

[0015] By using anti-slip blocks, the friction between the bag and the clamping structure can be increased, further improving the stability of the bag after it is fixed at the bottom and reducing the risk of the bag sliding off.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 is a schematic diagram of the overall structure of a bag-supporting mechanism for a packaging machine according to the present invention;

[0019] Figure 2 is a structural schematic diagram of the cross-sectional portion of the bearing plate of the bag-supporting mechanism for a packaging machine according to the present invention;

[0020] Figure 3 is a structural schematic diagram of the cross-sectional portion of the moving plate of the bag-supporting mechanism for a packaging machine according to the present invention;

[0021] Figure 4 is a structural schematic diagram of the cross-sectional portion of the bearing plate of the bag-supporting mechanism for a packaging machine according to the present invention.

[0022] Legend:

[0023] 1. Docking plate; 2. Support plate; 3. Bearing plate; 4. First motor; 5. First bidirectional threaded screw; 6. First slider; 7. Bearing rod; 8. Suction cup; 9. Second motor; 10. Threaded screw; 11. Lifting block; 12. Moving plate; 13. Third motor; 14. Second bidirectional threaded screw; 15. Moving rod; 16. Connecting plate; 17. Anti-slip block; 18. Docking groove; 19. Lifting groove; 20. Guide groove; 21. Guide block; 22. First limiting slide groove; 23. Second limiting slide groove. Detailed Implementation

[0024] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0025] Referring to Figures 1-4, an embodiment of this utility model provides a bag-supporting mechanism for a packaging machine, comprising a docking plate 1, a support plate 2 fixedly connected to the front surface of the docking plate 1, a bearing plate 3 fixedly connected to the front surface of the support plate 2, a first motor 4 fixedly connected to the right surface of the bearing plate 3, a first bidirectional threaded screw 5 fixedly connected to the output end of the first motor 4, two first sliders 6 threadedly connected to the outer surface of the first bidirectional threaded screw 5, bearing rods 7 fixedly connected to the front surfaces of the two first sliders 6, and multiple suction cups 8 fixedly connected to the side surfaces of the two bearing rods 7. A second motor 9 is fixedly connected to the lower surface. A threaded screw 10 is fixedly connected to the output end of the second motor 9. A lifting block 11 is threadedly connected to the outer surface of the threaded screw 10. A moving plate 12 is fixedly connected to the front surface of the lifting block 11. A third motor 13 is fixedly connected to the right surface of the moving plate 12. A second bidirectional threaded screw 14 is fixedly connected to the output end of the third motor 13. Two moving rods 15 are threadedly connected to the outer surface of the second bidirectional threaded screw 14. A connecting plate 16 is fixedly connected to each of the two moving rods 15. A connecting plate 16 is fixedly connected to the side surface of each of the two connecting plates 16. The anti-slip block 17 has two symmetrically distributed docking grooves 18 on the docking plate 1. The supporting plate 3 has a lifting groove 19, and the outer surface of the lifting block 11 is slidably connected to the lifting groove 19. The supporting plate 3 has a guide groove 20, and a guide block 21 is slidably connected to the inner surface of the guide groove 20. The front surface of the guide block 21 is fixedly connected to the moving plate 12. The moving plate 12 has a first limiting groove 22, and the outer surface of the moving rod 15 is slidably connected to the first limiting groove 22. The supporting plate 3 has a second limiting groove 23. The first slider... The outer surface of 6 is slidably connected to the second limiting groove 23. The outer surfaces of the first bidirectional threaded screw 5 and the threaded screw 10 are rotatably connected to the bearing plate 3. The outer surface of the second bidirectional threaded screw 14 is rotatably connected to the moving plate 12. The anti-slip block 17 is made of rubber. Through the setting of the docking groove 18, the entire mechanism can be connected to the packaging machine or other objects. Through the setting of the guide groove 20 and the guide block 21, it plays a guiding and limiting role for the other side of the moving plate 12, so that the moving plate 12 and the structure on the moving plate 12 can move smoothly.

[0026] It should be noted that the motor control method of this utility model is controlled by a controller or other control system. The control circuit of the controller can be implemented by simple programming by those skilled in the art, and the power supply is also common knowledge in the field. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail. Therefore, the control system can control the forward and reverse rotation of the motor output. When the outputs of the three motors rotate forward, they can respectively drive the first bidirectional threaded screw 5, the threaded screw 10, and the second bidirectional threaded screw 14 to rotate normally, thereby causing the two first sliders 6 and the structures on the first sliders 6 to move closer to each other, or causing the two moving rods 15 and the structures on the two moving rods 15 to move closer to each other. Simultaneously, the rotating second bidirectional threaded screw 14 can also drive the moving plate 12 and the structures on the moving plate 12 to move upwards. When the control system... When the output ends of the three motors are rotated in opposite directions, the two first sliders 6 and the structures on the first sliders 6 move away from each other, or the two moving rods 15 and the structures on the two moving rods 15 move away from each other. If the bottom of the bag is fixed at this time, the fixation on the bottom of the bag will be released after it moves away. At the same time, the rotating second bidirectional threaded screw 14 can drive the moving plate 12 and the structures on the moving plate 12 to move downward. The motors in the scheme are all stepper motors. After the stepper motor stops, its output shaft will remain in the current position. This is because the stator winding of the stepper motor will still generate a certain static holding torque when it is not energized, which can prevent the motor rotor from rotating arbitrarily due to external force, thereby achieving self-locking and preventing the structures on the first bidirectional threaded screw 5, threaded screw 10 or second bidirectional threaded screw 14 from moving again, ensuring the stability of the structure.

[0027] Working principle: After the bag is placed between the two support rods 7, the first motor 4 is started, which drives the first bidirectional threaded screw 5 to rotate. This rotating screw 5 causes the two first sliders 6 to move closer or further apart. Simultaneously, the third motor 13 on the moving plate 12 is started, which drives the second bidirectional threaded screw 14 to rotate. This rotating screw 14 then drives the moving rod 15 and the structures on it to move closer together. The two moving rods 15 move closer to each other, which in turn moves the two connecting plates 16 and the two anti-slip blocks 17 closer to each other. When the moving anti-slip blocks 17 come into contact with the bottom of the bag, the bottom of the bag is fixed by the clamping action of the two connecting plates 16 and the two anti-slip blocks 17. The anti-slip blocks 17 are made of rubber, which has a good anti-slip effect, thus increasing the friction between the bag and the clamping structure, thereby improving the fixing effect of the bottom of the bag. When the first motor 4 is started, it drives the two first... When the sliders 6 move closer together, the two support rods 7 also move closer together. This allows the suction cups 8 to gradually approach the bag. Once the suction cups 8 contact and adhere to the bag, the first motor 4 is controlled to rotate the first bidirectional threaded screw 5 in the opposite direction. This rotation of the first bidirectional threaded screw 5 drives the two first sliders 6, the two support rods 7, and the suction cups 8 on the two support rods 7 to move away from each other. Because the suction cups 8 adhere to the surface of the bag, they will pull the bag open during the movement of the suction cups 8. When the bag opening is pulled to a certain extent... After the first motor 4 is turned off, the suction cup 8 will continue to pull the bag body to achieve the effect of supporting the bag. By starting the second motor 9, the second motor 9 can drive the threaded screw 10 to rotate, so that the rotating threaded screw 10 can drive the lifting block 11 to move up or down in the lifting groove 19. At this time, the moving lifting block 11 will drive the moving plate 12 and the structure on the moving plate 12 to move up or down together, so that the moving rod 15, connecting plate 16 and anti-slip block 17 can be adjusted according to the length of different bags, increasing the overall practicality of the mechanism.

[0028] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A bag opening mechanism for a packaging machine, comprising: The docking plate (1) is characterized in that a support plate (2) is fixedly connected to the front surface of the docking plate (1), a bearing plate (3) is fixedly connected to the front surface of the support plate (2), a first motor (4) is fixedly connected to the right surface of the bearing plate (3), a first bidirectional threaded screw (5) is fixedly connected to the output end of the first motor (4), two first sliders (6) are threadedly connected to the outer surface of the first bidirectional threaded screw (5), a bearing rod (7) is fixedly connected to the front surface of each of the two first sliders (6), a plurality of suction cups (8) are fixedly connected to the side surface of each of the two bearing rods (7), and a second motor (9) is fixedly connected to the lower surface of the bearing plate (3). The output end of the second motor (9) is fixedly connected to a threaded screw (10). The outer surface of the threaded screw (10) is threadedly connected to a lifting block (11). The front surface of the lifting block (11) is fixedly connected to a moving plate (12). The right surface of the moving plate (12) is fixedly connected to a third motor (13). The output end of the third motor (13) is fixedly connected to a second bidirectional threaded screw (14). The outer surface of the second bidirectional threaded screw (14) is threadedly connected to two moving rods (15). Each of the two moving rods (15) is fixedly connected to a connecting plate (16). Each of the two connecting plates (16) is fixedly connected to a side surface of an anti-slip block (17).

2. The bag-supporting mechanism for a packaging machine according to claim 1, characterized in that, The docking plate (1) has two docking grooves (18) which are symmetrically distributed.

3. A bag opening mechanism for a packaging machine according to claim 1, characterized in that The support plate (3) is provided with a lifting groove (19), and the outer surface of the lifting block (11) is slidably connected to the lifting groove (19).

4. A bag opening mechanism for a packaging machine according to claim 1, characterized in that The bearing plate (3) is provided with a guide groove (20), and a guide block (21) is slidably connected to the inner surface of the guide groove (20). The front surface of the guide block (21) is fixedly connected to the moving plate (12).

5. A bag-supporting mechanism for a packaging machine according to claim 1, characterized in that, The movable plate (12) is provided with a first limiting groove (22), and the outer surface of the movable rod (15) is slidably connected to the first limiting groove (22).

6. A bag-supporting mechanism for a packaging machine according to claim 1, characterized in that, The bearing plate (3) is provided with a second limiting groove (23), and the outer surface of the first slider (6) is slidably connected to the second limiting groove (23).

7. A bag opening mechanism for a packaging machine according to claim 1, characterized in that The outer surfaces of the first bidirectional threaded screw (5) and the threaded screw (10) are rotatably connected to the bearing plate (3).

8. A bag opening mechanism for a packaging machine according to claim 1, characterized in that The outer surface of the second bidirectional threaded screw (14) is rotatably connected to the moving plate (12), and the anti-slip block (17) is made of rubber.

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