Automatic packaging bag screwing mechanism

Abstract

The utility model discloses an automatic packing bag screwing mechanism, which belongs to the technical field of packing bags, and comprises a connecting plate, a height adjusting assembly, four telescopic rods, a driving assembly, a rotating assembly and a clamping assembly, the height adjusting assembly comprises a first cylinder and a movable frame, the first cylinder is connected in the connecting plate, and the movable frame is connected in the connecting plate. The movable frame comprises a first movable plate, and the bottom of the first movable plate is connected with a second movable plate through four fixing rods; when the opening part of the packaging bag moves to the position among the clamping plates, the second air cylinder is controlled to extend, the clamping plates close to each other make contact with the opening of the packaging bag, the packaging bag is automatically closed, then the motor is controlled to work, and the rotating rotary disc drives the clamping assembly to screw the top of the closed packaging bag. By means of the packaging bag sealing device, the packaging bag can be quickly sealed, the sealing efficiency is improved, and the sealing quality of the packaging bag is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of packing bag, concretely relates to a packing bag automatic screwing mechanism. BACKGROUND

[0002] For many products, especially food, chemicals and the like, the sealing of the package is of vital importance. However, in modern mass production and packaging processes, manual closing and screwing of the packaging bags is inefficient and the quality of the seals is inconsistent, which cannot guarantee the quality of the seals of the packaging bags, and therefore a packing bag automatic screwing mechanism is needed to solve the above problems. SUMMARY

[0003] The utility model discloses a kind of packing bag automatic screwing mechanisms, to solve the problems presented in the above background technology.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of packing bag automatic screwing mechanism, including connecting plate, height adjusting assembly, four telescopic rods, drive assembly, rotating assembly and clamping assembly, the height adjusting assembly includes first cylinder and movable frame, the first cylinder is connected in connecting plate, the movable frame includes first movable plate, the bottom of the first movable plate is connected with second movable plate by four fixed rods, the movable end of the first cylinder is connected with first movable plate;

[0005] The drive assembly includes motor, the motor is connected with second movable plate, the output shaft of the motor is connected with first pulley, the first pulley is rotatably connected in first movable plate, the first pulley is drivenly connected with second pulley by belt;

[0006] The rotating assembly includes shaft, the top of the shaft is connected with second pulley, the shaft is rotatably connected in first movable plate, the bottom of the shaft is connected with rotary disc, the rotary disc is rotatably connected in second movable plate, the lower surface of the second movable plate is connected with limiting piece;

[0007] The clamping assembly includes second cylinder and several connecting rods, the rotary disc is connected with fixed plate by several connecting rods, the second cylinder is connected at the lower surface of rotary disc, the movable end of the second cylinder is connected with movable disc, the movable disc is connected with one end of several connecting rods, the other end of several connecting rods is all connected with clamping plate, one rotating part in the middle of several connecting rods close to clamping plate is connected with the lower surface of fixed plate.

[0008] As a preferred scheme, the upper surface of the first movable plate is connected with the bottom of the four telescopic rods, and the top of the four telescopic rods is connected with the lower surface of the connecting plate.

[0009] As a preferred embodiment, the fixed plate has a circular through groove in the middle, the movable disc is located above the through groove, and the connecting rod is located inside the through groove.

[0010] As a preferred embodiment, the second cylinder is positioned between several connecting rods.

[0011] As a preferred embodiment, the position of the turntable corresponds to the position of the limiting member.

[0012] As a preferred embodiment, the first cylinder is located between the first pulley and the second pulley, and the first pulley and the second pulley are located between the four telescopic rods.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention, by comprising a drive assembly, a rotating assembly, and a clamping assembly, allows the second cylinder to extend when the opening of the packaging bag moves between several clamping plates. The clamping plates, which are close to each other, contact the opening of the packaging bag and automatically close the bag. Then, the motor is controlled to work, and the rotating turntable drives the clamping assembly to twist the top of the closed packaging bag. This allows the device to quickly seal the packaging bag, improving sealing efficiency and ensuring the quality of the sealed packaging bag.

[0015] This invention, by setting a limiting component and a turntable, prevents the turntable from continuing to rotate under the action of the rotating second pulley after it comes into contact with the limiting component. This makes it less likely for the turntable to over-rotate the clamping component and damage the packaging bag, thus allowing the device to safely seal the packaging bag. Attached Figure Description

[0016] Fig. 1 This is a three-dimensional structural diagram of the present invention from the front view;

[0017] Fig. 2 This is a side view of the structure of this utility model;

[0018] Fig. 3 This is a frontal view of the structure of this utility model.

[0019] In the diagram: 1. Connecting plate; 2. Height adjustment assembly; 21. First cylinder; 22. Movable frame; 221. First movable plate; 222. Fixed rod; 223. Second movable plate; 3. Telescopic rod; 4. Drive assembly; 41. Motor; 42. First pulley; 43. Belt; 44. Second pulley; 5. Rotating assembly; 51. Rotating shaft; 52. Turntable; 6. Limiting component; 7. Clamping assembly; 71. Second cylinder; 72. Connecting rod; 73. Fixed plate; 74. Movable plate; 75. Connecting rod; 76. Clamping plate. Detailed Implementation

[0020] The utility model is further described below in combination with the embodiments.

[0021] The following embodiments are used to illustrate the utility model, but cannot be used to limit the protection scope of the utility model. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements of the method of the utility model under the concept premise of the utility model all belong to the range required to be protected by the utility model.

[0022] Please refer to Figs. 1-3 The utility model provides a kind of automatic screwing mechanism of packaging bag, including connecting plate 1, height adjusting assembly 2, four telescopic rods 3, drive assembly 4, rotating assembly 5 and clamping assembly 7, height adjusting assembly 2 includes first cylinder 21 and movable frame 22, first cylinder 21 is connected in connecting plate 1, movable frame 22 includes first movable plate 221, the bottom of first movable plate 221 is connected with second movable plate 223 by four fixed rods 222, the movable end of first cylinder 21 is connected with first movable plate 221;

[0023] Drive assembly 4 includes motor 41, motor 41 is connected with second movable plate 223, the output shaft of motor 41 is connected with first pulley 42, first pulley 42 is rotatably connected in first movable plate 221, first pulley 42 is drivenly connected with second pulley 44 by belt 43;

[0024] Rotating assembly 5 includes shaft 51, the top end of shaft 51 is connected with second pulley 44, shaft 51 is rotatably connected in first movable plate 221, the bottom end of shaft 51 is connected with turntable 52, by setting belt 43, first pulley 42 and second pulley 44, when limiting piece 6 is in contact with the rotating turntable 52, rotating belt 43 can slip on the surface of second pulley 44, the device sets pulley transmission and can guarantee that motor 41 is not easy to be damaged due to overload;

[0025] Turntable 52 is rotatably connected in second movable plate 223, the lower surface of second movable plate 223 is connected with limiting piece 6, by setting limiting piece 6 and turntable 52, when rotating turntable 52 is in contact with limiting piece 6, at this time, turntable 52 will not continue to rotate under the action of rotating second pulley 44, so that turntable 52 is not easy to be screwed to damage packaging bag by driving clamping assembly 7 excessively, so that the device can safely seal packaging bag;

[0026] The clamping assembly 7 comprises a second cylinder 71 and a plurality of connecting rods 72, the rotating disc 52 is connected with the fixed plate 73 through the plurality of connecting rods 72, the second cylinder 71 is connected to the lower surface of the rotating disc 52, the movable end of the second cylinder 71 is connected with the movable disc 74, the movable disc 74 is connected with one end of the plurality of connecting rods 75, the other end of the plurality of connecting rods 75 is connected with the clamping plates 76, one rotating part of the plurality of connecting rods 75, which is close to the clamping plates 76, is connected with the lower surface of the fixed plate 73, through the connecting rods 75, when the second cylinder 71 drives the movable disc 74 to move upwards, the movable disc 74 moving upwards can drive the plurality of clamping plates 76 to move away from each other through the plurality of connecting rods 75;

[0027] The upper surface of the first movable plate 221 is connected with the bottom end of the four telescopic rods 3, the top end of the four telescopic rods 3 is connected with the lower surface of the connecting plate 1, the middle of the fixed plate 73 is provided with a circular through groove, the movable disc 74 is arranged above the through groove, the connecting rod 75 is arranged in the through groove, the second cylinder 71 is arranged between the plurality of connecting rods 72, the position of the rotating disc 52 corresponds to the position of the limiting piece 6, the first cylinder 21 is arranged between the first pulley 42 and the second pulley 44, and the first pulley 42 and the second pulley 44 are arranged between the four telescopic rods 3. Through the arrangement of the telescopic rod 3, the telescopic rod 3 can limit the movable movable frame 22, so that the movable frame 22 is not easy to shake during movement, and the movable frame 22 can stably move along the axial direction under the action of the first cylinder 21.

[0028] The working principle and use process of the utility model are as follows: the packaging bag is located below the middle position of the plurality of clamping plates 76, the first cylinder 21 is controlled to be elongated, the first cylinder 21 being elongated drives the movable frame 22 to move downwards, the movable frame 22 moving downwards drives the four telescopic rods 3 to be elongated, the movable frame 22 moving downwards drives the clamping assembly 7 to move downwards through the rotating assembly 5, so that the opening part of the packaging bag moves to between the plurality of clamping plates 76.

[0029] The second cylinder 71 is controlled to be elongated, the second cylinder 71 being elongated drives the movable disc 74 to move downwards, the movable disc 74 moving downwards drives the plurality of clamping plates 76 to move close to each other through the connecting rod 75, the clamping plates 76 moving close to each other contact the opening of the packaging bag and automatically close the packaging bag.

[0030] Then the motor 41 is controlled to work, the motor 41 working drives the first pulley 42 to rotate, the first pulley 42 rotating drives the second pulley 44 to rotate through the belt 43, the second pulley 44 rotating drives the rotating disc 52 to rotate through the rotating shaft 51, the rotating disc 52 rotating drives the clamping assembly 7 to rotate, and the clamping assembly 7 rotating can screw the top of the closed packaging bag.

[0031] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic twisting mechanism for packaging bags, comprising a connecting plate (1), a height adjustment assembly (2), four telescopic rods (3), a drive assembly (4), a rotating assembly (5), and a clamping assembly (7), characterized in that: The height adjustment assembly (2) includes a first cylinder (21) and a movable frame (22). The first cylinder (21) is connected inside the connecting plate (1). The movable frame (22) includes a first movable plate (221). The bottom of the first movable plate (221) is connected to a second movable plate (223) through four fixed rods (222). The movable end of the first cylinder (21) is connected to the first movable plate (221). The drive assembly (4) includes a motor (41), which is connected to a second movable plate (223). The output shaft of the motor (41) is connected to a first pulley (42), which is rotatably connected inside the first movable plate (221). The first pulley (42) is connected to a second pulley (44) via a belt (43). The rotating assembly (5) includes a rotating shaft (51), the top end of which is connected to a second pulley (44), the rotating shaft (51) is rotatably connected inside a first movable plate (221), the bottom end of which is connected to a turntable (52), the turntable (52) is rotatably connected inside a second movable plate (223), and a limiting member (6) is connected to the lower surface of the second movable plate (223). The clamping assembly (7) includes a second cylinder (71) and several connecting rods (72). The turntable (52) is connected to the fixed plate (73) through several connecting rods (72). The second cylinder (71) is connected to the lower surface of the turntable (52). The movable end of the second cylinder (71) is connected to the movable plate (74). The movable plate (74) is connected to one end of several connecting rods (75). The other end of several connecting rods (75) is connected to the clamping plate (76). A rotating part of several connecting rods (75) near the clamping plate (76) is connected to the lower surface of the fixed plate (73).

2. The automatic twisting mechanism for packaging bags according to claim 1, characterized in that: The upper surface of the first movable plate (221) is connected to the bottom end of the four telescopic rods (3), and the top end of the four telescopic rods (3) is connected to the lower surface of the connecting plate (1).

3. The automatic twisting mechanism for packaging bags according to claim 1, characterized in that: The fixed plate (73) has a circular through groove in the middle, the movable plate (74) is located above the through groove, and the connecting rod (75) is located inside the through groove.

4. The automatic twisting mechanism for packaging bags according to claim 1, characterized in that: The second cylinder (71) is located between several connecting rods (72).

5. The automatic twisting mechanism for packaging bags according to claim 1, characterized in that: The position of the turntable (52) corresponds to the position of the limiting member (6).

6. The automatic twisting mechanism for packaging bags according to claim 1, characterized in that: The first cylinder (21) is located between the first pulley (42) and the second pulley (44), and the first pulley (42) and the second pulley (44) are located between the four telescopic rods (3).

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