Sealing forming mechanism of menstrual period trousers packaging machine

Abstract

The invention provides a sealing forming mechanism of a menstrual period trousers packaging machine, and relates to the technical field of sealing forming of menstrual period trousers packaging machines. The sealing forming mechanism of the menstrual period trousers packaging machine comprises two pieces of supporting square steel, two cross beams are fixedly arranged at the upper ends of the two pieces of supporting square steel, guide rails are fixedly arranged on the surfaces of the two cross beams, sliding blocks are slidably arranged on the surfaces of the two guide rails, and a moving plate is fixedly arranged on the upper surfaces of the two sliding blocks; a plurality of synchronous wheels are rotationally arranged on the upper surface of the moving plate, a synchronous belt is arranged between every two synchronous wheels, the synchronous wheels are divided into three groups in pairs, and a first servo motor is fixedly arranged at one of the front ends of the three synchronous wheels on one side of the synchronous wheels. Through the mechanical transmission mode of the multiple sets of servo motors, the cam plate and the synchronous belt, the motion trails of the three sets of shifting forks are controlled, then the forming state of bags is controlled, and the percent of pass of products is greatly increased.

Description

Technical Field

[0001] The present invention relates to the technical field of sealing and forming of menstrual pants packaging machines, and specifically relates to a sealing and forming mechanism for menstrual pants packaging machines. Background Art

[0002] The sealing and forming mechanism of a menstrual pants packaging machine is a key part of the packaging machine for completing the sealing of packaging bags. Its main function is to seal the packaging bags containing menstrual pants to ensure the tightness and stability of the packaging.

[0003] The existing patent (Publication No.: CN206437294U) discloses "The present utility model relates to a sanitary napkin packaging machine, and discloses a sealing and forming device in a full-automatic sanitary napkin packaging machine, which includes a sealing frame (2). A sealing part including an upper baffle (201), a rear baffle (202) and two side baffles (203) is provided on the sealing frame (2). The side baffles (203) are fixed on the side fixing plate (23) through a side plate adjusting mechanism (24); the side plate adjusting mechanism (24) includes a longitudinal plate (241), a transverse plate (242) and a first cylinder (243). The longitudinal plate (241) is fixed on the side fixing plate (23) through a waist hole (244), the transverse plate (242) is fixed on the longitudinal plate (241) through a waist hole (244), and the first cylinder (243) is connected to the side baffle (203). The present utility model adjusts the positions of each baffle of the product sealing part through a series of adjusting mechanisms, can effectively solve the problems of low packaging forming rate and poor forming existing in the packaging machine, and greatly improves the qualification rate of the packaged products."

[0004] In the process of realizing the present application, the inventor found that the existing technology has the following problems. The existing sealing and forming mechanism of the menstrual pants packaging machine mainly relies on the mold to suck air and is assisted by a triangular air blowing block for forming. Due to the irregular shape of the menstrual pants, this forming method by the mold sucking air has very poor effects, the bags are prone to edge misalignment, and the rejection rate is very high. Summary of the Invention

[0005] In view of the deficiencies of the existing technology, the present invention provides a sealing and forming mechanism for a menstrual pants packaging machine, which solves the problem of packaging irregular products, has a simple structure and is convenient to adjust, and greatly improves the qualification rate of products.

[0006] To achieve the above object, the present invention is realized through the following technical solutions: A sealing and forming mechanism for a menstrual pants packaging machine includes two support square steels. Two cross beams are fixedly arranged at the upper ends of the two support square steels. Guide rails are fixedly arranged on the surfaces of the two cross beams. Sliders are slidably arranged on the surfaces of the two guide rails. A moving plate is fixedly arranged on the upper surfaces of the two sliders; A plurality of synchronous pulleys are rotatably arranged on the upper surface of the moving plate, synchronous belts are arranged between every two of the plurality of synchronous pulleys, and the plurality of synchronous pulleys are divided into three groups in pairs. One of the three front ends on one side of the plurality of synchronous pulleys is fixedly provided with a first servo motor, one of the three middle parts on one side of the plurality of synchronous pulleys is fixedly provided with a second servo motor, and one of the three rear ends on one side of the plurality of synchronous pulleys is fixedly provided with a third servo motor.

[0007] Preferably, a reducer mounting plate is fixedly provided at the middle position on the upper end of the front surface of one of the two support square steels, and a reducer is fixedly provided on the surface of the reducer mounting plate.

[0008] Preferably, a fourth servo motor is connected to the lower end of the reducer, and a expansion sleeve is fixedly connected to the output end of the fourth servo motor through the reducer.

[0009] Preferably, a crank is fixedly provided on the outer surface of the expansion sleeve, and a spherical plain bearing is rotatably connected to one end of the crank.

[0010] Preferably, a connecting rod is connected to the other end of the spherical plain bearing, and the other end of the connecting rod is connected to the moving plate through a spherical plain bearing.

[0011] Preferably, two positioning plates are fixedly provided on the surfaces of the front ends and the middle positions of the plurality of synchronous belts, fixing plates are fixedly provided at the upper ends of the four positioning plates, and mounting plates are fixedly provided on one sides of the front ends of the two of the four fixing plates.

[0012] Preferably, intermediate forks are fixedly provided at the upper ends of the front two of the four fixing plates, second sliding plates are slidably arranged at the rear sides of the front two of the four fixing plates through the mounting plates, two first sliding plates are slidably arranged on the back surfaces of the two second sliding plates, two upper forks and two lower forks are respectively fixedly provided at the upper ends of the four first sliding plates, and the lower ends of the four first sliding plates are fixedly connected to the middle two of the plurality of fixing plates.

[0013] Preferably, cam plates are hinged on the surfaces of the rear ends of the plurality of synchronous belts, a cam bearing is slidably arranged at the middle position of the two cam plates, and the two cam plates are connected to the first sliding plate through the cam bearing.

[0014] Working principle: This mechanism consists of two supporting square steel bars forming a basic framework. Two crossbeams are fixed at the upper end of the framework. Guide rails are installed on the surface of the crossbeams. Sliders are slidably arranged on the guide rails. A moving plate is fixed on the sliders. Multiple synchronous pulleys are installed on the moving plate. The synchronous pulleys are connected by synchronous belts and divided into three groups. Each group of synchronous pulleys is driven by a different servo motor. The first servo motor drives the front group, the second servo motor drives the middle group, and the third servo motor drives the rear group. A reducer mounting plate is also installed on the front supporting square steel bar. A reducer is fixed on it. The reducer is connected to the fourth servo motor and is connected to a spherical plain bearing through an expansion sleeve and a crank, and then connected to the moving plate to control the forward and backward movement of the moving plate. Positioning plates are fixed at the front end and the middle position of the synchronous belt. The upper end of the positioning plates is connected to a fixed plate. An intermediate fork is installed on the fixed plate, as well as an upper fork and a lower fork installed through a sliding plate. The first servo motor drives the fixed plate to move through the synchronous pulley and the synchronous belt, thereby controlling the horizontal movement of the intermediate fork. The second servo motor drives the fixed plate to move through the synchronous pulley and the synchronous belt, and further controls the horizontal movement of the upper fork and the lower fork. The third servo motor drives the cam plate at the rear end to move through the synchronous pulley and the synchronous belt. The cam plate is connected to the first sliding plate through a cam bearing, thereby controlling the vertical movement of the upper fork and the lower fork. When the menstrual pants packaging bag enters the sealing and forming mechanism, the fourth servo motor drives the moving plate to move forward and backward through the crank and the spherical plain bearing, so that the packaging bag is in a suitable position. The first, second, and third servo motors respectively control the movement trajectories of the three groups of forks. Through precise mechanical transmission and the control of the servo motors, the forks can tighten and form the packaging bag to prevent the bag from misaligning.

[0015] The present invention provides a sealing and forming mechanism for a menstrual pants packaging machine. It has the following beneficial effects: The present invention provides a sealing and forming mechanism for a menstrual pants packaging machine. Compared with the existing sealing and forming mechanisms of packaging machines, this sealing and forming mechanism of the packaging machine can accurately control the movement trajectories of the forks through multiple groups of servo motors and a mechanical transmission system, and can effectively solve the problem of bag misalignment caused by the irregular shape of menstrual pants in traditional packaging machines, thereby significantly improving the qualified rate of packaged products. At the same time, this mechanism can flexibly adjust the movement trajectories of the forks through servo motor drive and synchronous belt transmission to adapt to menstrual pants packaging bags of different specifications and shapes, and has strong adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the upper half structure of the present invention; Figure 3 is an enlarged schematic diagram of the structure at A of the present invention; Figure 4 is an enlarged schematic diagram of the structure at B of the present invention.

[0017] Among them, 1. Supporting square steel; 2. Cross beam; 3. Reducer mounting plate; 4. Crank; 5. Expansion sleeve; 6. Reducer; 7. Support connecting rod; 8. Spherical plain bearing; 9. Moving plate; 10. Slide block; 11. Guide rail; 12. First servo motor; 13. Second servo motor; 14. Third servo motor; 15. Fourth servo motor; 16. Synchronous belt; 17. Mounting plate; 18. Fixed plate; 19. Positioning plate; 20. First sliding plate; 21. Cam plate; 22. Cam bearing; 23. Upper fork; 24. Lower fork; 25. Intermediate fork; 26. Synchronous pulley; 27. Second sliding plate. Specific implementation mode

[0018] 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.

[0019] As Figures 1-4 shown, the embodiment of the present invention provides a sealing and forming mechanism for a menstrual pants packaging machine. There are two supporting square steels 1. Two cross beams 2 are fixedly arranged at the upper ends of the two supporting square steels 1. Guide rails 11 are fixedly arranged on the surfaces of the two cross beams 2. Slide blocks 10 are slidably arranged on the surfaces of the two guide rails 11. A moving plate 9 is fixedly arranged on the upper surfaces of the two slide blocks 10; A plurality of synchronous pulleys 26 are rotatably arranged on the upper surface of the moving plate 9. Synchronous belts 16 are arranged between every two of the plurality of synchronous pulleys 26 in a group. The plurality of synchronous pulleys 26 are divided into three groups in pairs. One of the three front ends on one side of the plurality of synchronous pulleys 26 is fixedly provided with a first servo motor 12. One of the three middle parts on one side of the plurality of synchronous pulleys 26 is fixedly provided with a second servo motor 13. One of the three rear ends on one side of the plurality of synchronous pulleys 26 is fixedly provided with a third servo motor 14.

[0020] Specifically, the mechanism shown in the present invention is installed at the sealing part of the packaging machine. The supporting square steel 1 is connected to the platform by bolts. The cross beam 2 is fixed on the supporting square steel 1. The reducer mounting plate 3 is installed on the cross beam 2. When in use, the first servo motor 12, the second servo motor 13, the third servo motor 14 and the fourth servo motor 15 provide drive for the overall operation of the device, realizing the packaging function when the device is used. The plurality of synchronous pulleys 26 and the synchronous belts 16 are used to transmit the movements of the first servo motor 12, the second servo motor 13 and the third servo motor 14. By means of the mechanical transmission mode of multiple groups of servo motors, the cam plate 21 and the synchronous belts 16, the movement trajectories of the three groups of forks are controlled, and then the forming state of the bag is controlled, greatly improving the qualified rate of the product.

[0021] In the middle position at the upper end of the front side of one of the two supporting square steels 1, a reducer mounting plate 3 is fixedly arranged. On the surface of the reducer mounting plate 3, a reducer 6 is fixedly arranged. At the lower end of the reducer 6, a fourth servo motor 15 is connected. The output end of the fourth servo motor 15 is fixedly connected with an expansion sleeve 5 through the reducer 6. On the outer surface of the expansion sleeve 5, a crank 4 is fixedly arranged. One end of the crank 4 is rotatably connected with a spherical plain bearing 8. The other end of the spherical plain bearing 8 is connected with a connecting rod 7. The other end of the connecting rod 7 is connected with a moving plate 9 through a spherical plain bearing 8.

[0022] Specifically, the crank 4 is connected with the reducer 6 through the expansion sleeve 5. There is a spherical plain bearing 8 at each end of the connecting rod 7. The spherical plain bearings 8 are respectively connected with the crank 4 and the moving plate 9. The moving plate 9 is installed on the guide rail 11 through a slider 10. When the product is pushed into the sealing position, the fourth servo motor 15 drives the moving plate 9 to move back and forth through the crank 4, realizing the function of adjusting the overall position of the upper mechanism.

[0023] On both surfaces at the front end and the middle position of multiple synchronous belts 16, two positioning plates 19 are fixedly arranged. On the upper ends of the four positioning plates 19, fixing plates 18 are fixedly arranged. On one side of the front ends of the four fixing plates 18, mounting plates 17 are fixedly arranged. On the upper ends of the two in the front of the four fixing plates 18, middle forks 25 are fixedly arranged. At the rear sides of the two in the front of the four fixing plates 18, second sliding plates 27 are slidably arranged through the mounting plates 17. On the back surfaces of the two second sliding plates 27, two first sliding plates 20 are slidably arranged. On the upper ends of the four first sliding plates 20, two upper forks 23 and two lower forks 24 are respectively fixedly arranged. The lower ends of the four first sliding plates 20 are fixedly connected with the two in the middle of the multiple fixing plates 18. On the two surfaces at the rear end of the multiple synchronous belts 16, cam plates 21 are hingedly arranged. In the middle position of the two cam plates 21, a cam bearing 22 is slidably arranged. The two cam plates 21 are connected with the first sliding plate 20 through the cam bearing 22.

[0024] Specifically, when in use, the first servo motor 12 drives the fixing plate 18 on its surface to move through the synchronous pulley 26 and the synchronous belt 16, thereby realizing the function of controlling the horizontal movement of the two middle forks 25. The second servo motor 13 drives the fixing plate 18 on its surface to move through the synchronous pulley 26 and the synchronous belt 16, thereby controlling the horizontal movement of the two upper forks 23 and the two lower forks 24. The third servo motor 14 drives the two cam plates 21 to move horizontally. Through the drive of the cam bearing 22, the upper forks 23 and the lower forks 24 move in the vertical direction. The three groups of forks can move in any trajectory driven by the three servo motors, so as to tighten the bag and prevent the bag from being misaligned.

[0025] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing and forming mechanism for a menstrual pants packaging machine, comprising two supporting square steels (1), characterized in that: Two crossbeams (2) are fixedly arranged on the upper ends of the two supporting square steels (1), guide rails (11) are fixedly arranged on the surfaces of the two crossbeams (2), sliders (10) are slidably arranged on the surfaces of the two guide rails (11), and movable plates (9) are fixedly arranged on the upper surfaces of the two sliders (10); A plurality of synchronous wheels (26) are rotatably arranged on the upper surface of the movable plate (9), a synchronous belt (16) is arranged between the plurality of synchronous wheels (26) in pairs, and the plurality of synchronous wheels (26) are divided into three groups in pairs, one of the three front ends of one side of the plurality of synchronous wheels (26) is fixedly arranged with a No. 1 servo motor (12), one of the three middle ends of one side of the plurality of synchronous wheels (26) is fixedly arranged with a No. 2 servo motor (13), and one of the three rear ends of one side of the plurality of synchronous wheels (26) is fixedly arranged with a No. 3 servo motor (14).

2. The sealing and forming mechanism of a menstrual pants packaging machine according to claim 1, characterized in that: A reducer mounting plate (3) is fixedly arranged at the middle position of the upper front end of one of the front ends of the two supporting square steels (1), and a reducer (6) is fixedly arranged on the surface of the reducer mounting plate (3).

3. The sealing and forming mechanism of a menstrual pants packaging machine according to claim 2, characterized in that: The lower end of the reducer (6) is connected to a No. 4 servo motor (15), and the output end of the No. 4 servo motor (15) is fixedly connected to an expansion sleeve (5) via the reducer (6).

4. The sealing and forming mechanism of a menstrual pants packaging machine according to claim 3, characterized in that: A crank (4) is fixedly arranged on the outer surface of the expansion sleeve (5), and one end of the crank (4) is rotatably connected to a spherical bearing (8).

5. The sealing and forming mechanism of a menstrual pants packaging machine according to claim 4, characterized in that: The other end of the joint bearing (8) is connected to a supporting connecting rod (7), and the other end of the supporting connecting rod (7) is connected to a movable plate (9) via the joint bearing (8).

6. The sealing and forming mechanism of a menstrual pants packaging machine according to claim 1, characterized in that: Two positioning plates (19) are fixedly provided on the front ends and two surfaces at the middle positions of the plurality of synchronous belts (16), a fixing plate (18) is fixedly provided on the upper ends of the four positioning plates (19), and a mounting plate (17) is fixedly provided on two sides of the front ends of the four fixing plates (18).

7. The sealing and forming mechanism of a menstrual pants packaging machine according to claim 6, characterized in that: The two upper ends of the front ends of the four fixed plates (18) are fixedly provided with middle shift forks (25); the two rear sides of the front ends of the four fixed plates (18) are slidably provided with second sliding plates (27) through the mounting plates (17); the backs of the two second sliding plates (27) are slidably provided with two first sliding plates (20); the upper ends of the four first sliding plates (20) are respectively fixedly provided with two upper shift forks (23) and two lower shift forks (24); and the lower ends of the four first sliding plates (20) are fixedly connected to two middle ones of the plurality of fixed plates (18).

8. The sealing and forming mechanism of a menstrual pants packaging machine according to claim 6, characterized in that: Cam plates (21) are hingedly provided on two surfaces at the middle and rear ends of the plurality of synchronous belts (16), a cam bearing (22) is slidably provided at the middle position of the two cam plates (21), and the two cam plates (21) are connected to the first sliding plate (20) via the cam bearing (22).

Images