Sealing device with tightening function

Abstract

The utility model discloses a sealing device with a tightening function. The sealing device comprises a sealing module and a supporting assembly. A packaging bag is placed between the two sealing modules, in the process that the two heat sealing plates move towards each other, the sealing modules and the two pressing plates are attached to each other to press one end of the packaging bag, the two pressing rollers press the other end of the packaging bag, and at the moment, the heat sealing plates continue to move; when one end of the packaging bag is pulled, the corresponding pair of circular shaft rods move along the circular sleeve, the corresponding pair of circular shaft rods drive the springs to be compressed, at the moment, the two pressing rollers drive the corresponding arc springs to be stretched, meanwhile, the two pressing rollers drive the corresponding pair of connecting rods to swing, and the two pressing rollers press the other end of the packaging bag to be pulled; and a telescopic rod of the air cylinder continues to stretch out, the two heat sealing plates are close to each other and attached to the packaging bag, and sealing of the packaging bag is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bag sealing, in particular to a sealing device with a tightening function. Background Art

[0002] The bag sealing machine is a device that uses heat to melt and solidify the bag opening. Its working principle is to put the bag opening between the two pressing plates of the bag sealing machine. One of the pressing plates is attached with a heating wire. After the bag is in place, the upper and lower pressing plates are clamped together, and the heating wire is powered and heated to melt the bag opening. After a certain period of time, the upper and lower pressing plates are separated, the heating wire is powered off, and the melted position of the bag solidifies again, and finally the bag is sealed;

[0003] However, the existing packaging bag sealing device generally manually places the packaging bag mouth between two pressing plates when in use. The manually placed packaging bag is inevitably slightly loose, and the loose packaging bag is prone to wrinkles during the sealing process, which easily leads to sealing failure. In addition, wrinkles at the sealing position reduce the firmness, affecting the sealing effect.

[0004] Therefore, it is necessary to provide a sealing device with a tightening function to solve the above technical problems. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a sealing device with a tightening function.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A sealing device with a tightening function, comprising a sealing module and a supporting assembly;

[0008] Wherein, the sealing module comprises a rectangular frame, the two sides of the rectangular frame are respectively fixedly connected to the shells of the corresponding cylinders, the telescopic rods of the two cylinders respectively pass through the two sides of the rectangular frame, the telescopic rods of the two cylinders are respectively fixedly connected to the corresponding heat-sealing plates, the upper sides of the two heat-sealing plates are respectively fixedly connected to a pair of symmetrical circular guide rods, the corresponding pair of circular guide rods respectively pass through the corresponding linear bearings, and the corresponding pair of linear bearings respectively pass through and are fixedly connected to the two sides of the rectangular frame;

[0009] One side of the two heat-sealed plates is respectively fixedly connected to a pair of symmetrical circular sleeves, a corresponding group of circular sleeves is respectively provided with a corresponding circular shaft rod, the lower part of the corresponding pair of circular shaft rods is respectively sleeved with a corresponding spring, one end of the corresponding pair of springs is respectively fixedly connected to the corresponding circular sleeve, the other end of the corresponding pair of springs is respectively fixedly connected to the corresponding pressing plate, and the corresponding pair of circular shaft rods are respectively fixedly connected to the corresponding pressing plate;

[0010] The other sides of the two heat-sealing plates are respectively connected to a corresponding pair of connecting rods through a pin hinge, and the central axes at both ends of the two pressing rollers are respectively movably connected to one end of the corresponding pair of connecting rods, and one side of the corresponding pair of connecting rods is respectively fixedly connected to one end of the corresponding arc spring, and the other end of the corresponding pair of arc springs is respectively fixedly connected to the other side of the corresponding heat-sealing plate.

[0011] Preferably, the support assembly comprises a support frame.

[0012] Preferably, two sides of the inner wall of the support frame are respectively fixedly connected to the lower parts of two sides of the rectangular frame.

[0013] Preferably, a corresponding set of mounting holes are respectively provided at both ends of the support frame.

[0014] Compared with the related art, the beneficial effect of the utility model is as follows: the packaging bag is placed between two sealing modules, and in the process of the two heat sealing plates moving toward each other, through the sealing module, the two pressure plates fit together and press one end of the packaging bag, so that the two pressing rollers press the other end of the packaging bag. At this time, the heat sealing plate continues to move, so that the corresponding pair of circular shafts move along the circular sleeve, so that the corresponding pair of circular shafts drive the spring to compress. At this time, the two pressing rollers respectively drive the corresponding arc springs to stretch, and at the same time, the two pressing rollers respectively drive the corresponding pair of connecting rods to swing, so that the two pressing rollers press the other end of the packaging bag to pull it, so that the wrinkled part of the packaging bag is flattened, and the telescopic rod of the cylinder continues to extend, so that the two heat sealing plates are close to each other and fit the packaging bag, thereby completing the sealing of the packaging bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the utility model.

[0016] Figure 2 It is a three-dimensional schematic diagram of the utility model.

[0017] Figure 3 It is a schematic diagram of the connection structure of some parts of the utility model after cutting.

[0018] Figure 4 It is a schematic diagram of the connection structure of some parts of the utility model.

[0019] In the figure:

[0020] 1: Sealing module, 11, cylinder, 12, round guide rod, 13, heat sealing plate, 14, round sleeve, 15, round shaft rod, 16, pressing plate, 17, spring, 18, connecting rod, 19, arc spring, 110, pressing roller, 111, linear bearing, 112, rectangular frame;

[0021] 2: Support assembly, 21, support frame, 22, mounting hole. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] A sealing device with a tightening function, comprising a sealing module 1 and a supporting assembly 2;

[0024] The sealing module 1 comprises a rectangular frame 112, the two sides of the rectangular frame 112 are respectively fixedly connected to the shells of the corresponding cylinders 11, the telescopic rods of the two cylinders 11 respectively pass through the two sides of the rectangular frame 112, the telescopic rods of the two cylinders 11 are respectively fixedly connected to the corresponding heat-sealing plates 13, the upper sides of the two heat-sealing plates 13 are respectively fixedly connected to a pair of symmetrical circular guide rods 12, the corresponding pair of circular guide rods 12 respectively pass through the corresponding linear bearings 111, and the corresponding pair of linear bearings 111 respectively pass through and are fixedly connected to the two sides of the rectangular frame 112;

[0025] One side of the two heat-sealed plates 13 is respectively fixedly connected to a pair of symmetrical circular sleeves 14, and a corresponding group of circular sleeves 14 is respectively provided with a corresponding circular shaft 15, and the lower part of the corresponding pair of circular shafts 15 is respectively surrounded by a corresponding spring 17, and one end of the corresponding pair of springs 17 is respectively fixedly connected to the corresponding circular sleeve 14, and the other end of the corresponding pair of springs 17 is respectively fixedly connected to the corresponding pressing plate 16, and the corresponding pair of circular shafts 15 is respectively fixedly connected to the corresponding pressing plate 16;

[0026] The other sides of the two heat-sealing plates 13 are respectively connected to a corresponding pair of connecting rods 18 through a pin hinge, and the central axes at both ends of the two pressing rollers 110 are respectively movably connected to one end of the corresponding pair of connecting rods 18, and one side of the corresponding pair of connecting rods 18 is respectively fixedly connected to one end of the corresponding arc spring 19, and the other end of the corresponding pair of arc springs 19 is respectively fixedly connected to the other side of the corresponding heat-sealing plate 13.

[0027] The support assembly 2 includes a support frame 21 .

[0028] Both sides of the inner wall of the support frame 21 are fixedly connected to the lower parts of both sides of the rectangular frame 112 respectively.

[0029] A corresponding set of mounting holes 22 are respectively provided at both ends of the support frame 21 .

[0030] Working principle: When it is necessary to seal the packaging bag, first use a set of bolts to fix the support frame 21 through the mounting holes 22 to make the device more stable during operation. Then place the packaging bag between the two sealing modules 1, start the two cylinders 11, extend the telescopic rods of the two cylinders 11, and respectively drive the heat sealing plates 13 to move towards each other. The two heat sealing plates 13 respectively drive the circular guide rods 12 to move along the linear bearings 111. At the same time, the two heat sealing plates 13 respectively drive the circular shaft rods 15 to move through the circular sleeves 14, so that the corresponding pair of circular shaft rods 15 respectively drive the pressing plates 16 to move through the springs 17. At the same time, the two heat sealing plates 13 respectively drive the pressing rollers 110 to move through the arc springs 19.

[0031] In the process of the two heat sealing plates 13 moving towards each other, first, the two pressing plates 16 fit together to press one end of the packaging bag. At this time, the telescopic rod of the cylinder 11 continues to extend, so that the two pressing rollers 110 press the other end of the packaging bag. At this time, the heat sealing plate 13 continues to move, so that the corresponding pair of circular shafts 15 move along the circular sleeve 14, so that the corresponding pair of circular shafts 15 drive the spring 17 to compress. At this time, the two pressing rollers 110 respectively drive the corresponding arc spring 19 to stretch. At the same time, the two pressing rollers 110 respectively drive the corresponding pair of connecting rods 18 to swing, so that the two pressing rollers 110 press the other end of the packaging bag to pull it, so that the wrinkled part of the packaging bag is flattened to improve the sealing effect. The telescopic rod of the cylinder 11 continues to extend, so that the two heat sealing plates 13 are close to each other and fit the packaging bag to complete the sealing of the packaging bag.

[0032] Beneficial effect: the packaging bag is placed between the two sealing modules 1. During the process of the two heat sealing plates 13 moving toward each other, through the sealing module 1, the two pressing plates 16 fit together to press one end of the packaging bag, so that the two pressing rollers 110 press the other end of the packaging bag. At this time, the heat sealing plate 13 continues to move, so that the corresponding pair of circular shafts 15 move along the circular sleeve 14, so that the corresponding pair of circular shafts 15 drive the spring 17 to compress. At this time, the two pressing rollers 110 respectively drive the corresponding arc spring 19 to stretch. At the same time, the two pressing rollers 110 respectively drive the corresponding pair of connecting rods 18 to swing, so that the two pressing rollers 110 press the other end of the packaging bag to pull it, so that the wrinkled part of the packaging bag is flattened, and the telescopic rod of the cylinder 11 continues to extend, so that the two heat sealing plates 13 are close to each other and fit the packaging bag, and the sealing of the packaging bag is completed.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sealing device with a tightening function, characterized in that: The sealing device with tightening function comprises: Sealing module (1), supporting assembly (2); The sealing module (1) comprises a rectangular frame (112), the two sides of the rectangular frame (112) are respectively fixedly connected to the shells of the corresponding cylinders (11), the telescopic rods of the two cylinders (11) respectively pass through the two sides of the rectangular frame (112), the telescopic rods of the two cylinders (11) are respectively fixedly connected to the corresponding heat-sealing plates (13), the upper sides of the two heat-sealing plates (13) are respectively fixedly connected to a pair of symmetrical circular guide rods (12), the corresponding pair of circular guide rods (12) respectively pass through the corresponding linear bearings (111), and the corresponding pair of linear bearings (111) respectively pass through and are fixedly connected to the two sides of the rectangular frame (112); One side of the two heat-sealed plates (13) is respectively fixedly connected to a pair of symmetrical circular sleeves (14), a corresponding group of circular sleeves (14) is respectively provided with a corresponding circular shaft rod (15), the lower part of the corresponding pair of circular shaft rods (15) is respectively sleeved with a corresponding spring (17), one end of the corresponding pair of springs (17) is respectively fixedly connected to the corresponding circular sleeve (14), the other end of the corresponding pair of springs (17) is respectively fixedly connected to the corresponding pressing plate (16), and the corresponding pair of circular shaft rods (15) is respectively fixedly connected to the corresponding pressing plate (16); The other sides of the two heat-sealing plates (13) are respectively connected to a corresponding pair of connecting rods (18) through a pin hinge, and the central axes at both ends of the two pressing rollers (110) are respectively movably connected to one end of the corresponding pair of connecting rods (18), and one side of the corresponding pair of connecting rods (18) is respectively fixedly connected to one end of the corresponding arc spring (19), and the other end of the corresponding pair of arc springs (19) is respectively fixedly connected to the other side of the corresponding heat-sealing plate (13).

2. A sealing device with tightening function according to claim 1, characterized in that: The support assembly (2) comprises a support frame (21).

3. A sealing device with tightening function according to claim 2, characterized in that: Both sides of the inner wall of the support frame (21) are respectively fixedly connected to the lower parts of both sides of the rectangular frame (112).

4. A sealing device with tightening function according to claim 3, characterized in that: A corresponding set of mounting holes (22) are respectively provided at both ends of the support frame (21).

Images