Heat sealing mechanism for plastic packaging bag production

Abstract

The utility model belongs to the technical field of plastic product production, and particularly relates to a heat sealing mechanism for plastic packaging bag production, which comprises a main body, a folded plate is welded behind the upper wall of the main body, an air cylinder is mounted in the middle of the upper wall of the folded plate, the telescopic end of the air cylinder is connected with a pressing plate, and an electric heating plate is arranged in the middle of the upper wall of the main body. The electric heating plate is matched with the pressing plate in position, fixing plates are arranged on the front side and the rear side of the electric heating plate correspondingly, magnets are fixedly connected to the surfaces of the lower walls of the two fixing plates correspondingly, a shell of the main body is an iron product, and fixing plates are arranged on the front side and the rear side of the electric heating plate correspondingly; the sealed position of the plastic packaging bag makes contact with the surface of the electric heating plate, the front side and the rear side of the sealed position of the plastic packaging bag can be fixed by the fixing plates, the fixing plates are attracted to the surface of the main body through the magnets, and therefore the plastic packaging bag is fixed without being held by hands, and more practicability and convenience are achieved.

Description

Technical Field

[0001] The utility model relates to the field of plastic product production, in particular to a heat sealing mechanism for the production of plastic packaging bags. Background Art

[0002] Plastic packaging bags are widely used in food, medicine, daily chemical and other industries due to their lightness, waterproofness and transparency. In the production process of plastic packaging bags, heat sealing is a crucial process, which is directly related to the quality and safety of the product.

[0003] Currently, the heat sealing mechanism on the market is relatively simple, and the plastic bag needs to be manually fixed when sealing it. After a long time of operation, the operator will become more tired, affecting the process and being more inconvenient.

[0004] Therefore, a heat sealing mechanism for producing plastic packaging bags is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the present utility model is to provide a heat sealing mechanism for the production of plastic packaging bags, so as to solve the problem raised in the above-mentioned background technology that the heat sealing mechanisms currently available on the market are relatively simple, and the plastic bags need to be manually fixed when sealing them. After a long period of operation, the operator will become more tired, affecting the process and being more inconvenient.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a heat sealing mechanism for the production of plastic packaging bags, comprising a main body, a folding plate welded to the rear of the upper wall of the main body, a cylinder installed in the middle of the upper wall of the folding plate, the telescopic end of the cylinder is connected to a pressure plate, an electric heating plate is provided in the middle of the upper wall of the main body, the position of the electric heating plate and the pressure plate are adapted, fixed plates are provided on the front and back sides of the electric heating plate, the lower wall surfaces of the two fixed plates are fixedly connected to magnets, the outer shell of the main body is made of iron, vertical plates are provided on the left and right sides of the fixed plate, the lower wall surfaces of the two vertical plates are fixedly connected to the upper wall surface of the main body, and the two fixed plates are slidably connected to the adjacent vertical plates.

[0007] Preferably, a power supply is provided inside the main body, the electric heating plate is electrically connected to the power supply, a thermostat is provided on the left side of the front wall of the main body, the thermostat is electrically connected to the electric heating plate, a power switch is provided on the right side of the front wall of the main body, and the power switch is electrically connected to the power supply.

[0008] Preferably, the left and right wall surfaces of the fixed plate are fixedly connected with sliders, and the adjacent side surfaces of the two vertical plates are provided with two sliding grooves, the sliders are slidingly connected to the adjacent sliding grooves, and the fixed plate is slidingly connected to the vertical plates through the sliders, the sliding grooves and the vertical plates.

[0009] Preferably, two guide pillars are provided between the upper portion of the folding plate and the upper wall surface of the main body, both of the guide pillars pass through the interior of the pressing plate and extend to the outside of the pressing plate, and the pressing plate is slidably connected to the two guide pillars.

[0010] Preferably, the four corners of the lower wall surface of the main body are connected with buffer pads, and the lower wall surfaces of the four buffer pads are provided with anti-slip lines.

[0011] Preferably, a handle is connected to the middle portion of the upper wall of the two fixing plates, and the outer wall surface of the handle is sprayed with corrosion-resistant paint.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: fixing plates are provided on the front and rear sides of the electric heating plate, the position where the plastic packaging bag is sealed is in contact with the surface of the electric heating plate, and the front and rear sides of the sealed portion of the plastic packaging bag can be fixed by the fixing plates, which are adsorbed on the surface of the main body by magnets, thereby fixing the plastic packaging bag, without the need for hand-held fixation, which is more practical and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the three-dimensional structure of the fixed plate of the utility model;

[0015] Figure 3 This is a schematic diagram of the three-dimensional structure of the vertical plate of the utility model.

[0016] In the figure: 1. Main body; 2. Temperature controller; 3. Power switch; 4. Buffer pad; 5. Folding plate; 6. Cylinder; 7. Guide column; 8. Pressing plate; 9. Electric heating plate; 10. Vertical plate; 11. Fixed plate; 12. Slider; 13. Magnet; 14. Handle; 15. Slide groove. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0020] Example:

[0021] See also Figure 1-3 The utility model provides a technical solution: a heat sealing mechanism for the production of plastic packaging bags, comprising a main body 1, a folding plate 5 welded to the rear of the upper wall of the main body 1, a cylinder 6 is installed in the middle of the upper wall of the folding plate 5, the telescopic end of the cylinder 6 is connected to a pressing plate 8, an electric heating plate 9 is arranged in the middle of the upper wall of the main body 1, the electric heating plate 9 includes an innermost resistance wire, an insulating layer and an outermost metal shell, the position between the electric heating plate 9 and the pressing plate 8 is adapted, and a fixing plate 11 is arranged on the front and rear sides of the electric heating plate 9, and the lower wall surfaces of the two fixing plates 11 are fixedly connected to magnets 13, the shell of the main body 1 is made of iron, and vertical plates 10 are arranged on the left and right sides of the fixing plate 11, the lower wall surfaces of the two vertical plates 10 are fixedly connected to the upper wall surface of the main body 1, and the two fixing plates 11 are slidably connected to the adjacent vertical plates 10.

[0022] Among them, the main body 1 is provided with a power supply, the electric heating plate 9 is electrically connected to the power supply, the left side of the front wall of the main body 1 is provided with a thermostat 2, the thermostat 2 is electrically connected to the electric heating plate 9, the right side of the front wall of the main body 1 is provided with a power switch 3, the power switch 3 is electrically connected to the power supply, the left and right wall surfaces of the fixed plate 11 are fixedly connected with a slider 12, and the side surface of the two vertical plates 10 adjacent to each other is provided with two slide grooves 15, the slider 12 is slidably connected to the adjacent slide grooves 15, and the fixed plate 1 1 is slidably connected to the vertical plate 10 through the slider 12 and the slide groove 15. Two guide pillars 7 are provided between the upper part of the folding plate 5 and the upper wall surface of the main body 1. The two guide pillars 7 pass through the interior of the pressing plate 8 and extend to the outside of the pressing plate 8. The pressing plate 8 and the two guide pillars 7 are slidably connected. The four corners of the lower wall surface of the main body 1 are connected to the buffer pads 4. The lower wall surfaces of the four buffer pads 4 are provided with anti-slip grooves. The middle part of the upper wall of the two fixed plates 11 is connected to the handle 14. The outer wall surface of the handle 14 is sprayed with corrosion-resistant paint.

[0023] Working principle: First, turn on the power through the power switch 3, and then adjust the temperature of the electric heating plate 9 through the thermostat 2. After a period of time, the temperature of the electric heating plate 9 increases, and the fixed plate 11 close to the folding plate 5 is pulled up. The front end of the plastic packaging bag is placed under this fixed plate 11, and the sealing part of the plastic packaging bag is placed above the electric heating plate 9. Pull up the front fixed plate 11, and the plastic packaging bag passes through the bottom of the front fixed plate 11. The plastic packaging bag is fixed by the adsorption of the magnet 14 to the surface of the main body 1, and the cylinder 6 is started. The telescopic end of the cylinder 6 drives the pressing plate 8 to act on the sealing part of the plastic packaging bag to perform a heat sealing operation.

[0024] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure marks in the claims should not be regarded as limiting the claims involved.

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

Claims

1. A heat sealing mechanism for producing plastic packaging bags, comprising a main body (1), characterized in that: A folding plate (5) is welded to the rear of the upper wall of the main body (1), a cylinder (6) is installed in the middle of the upper wall of the folding plate (5), and the telescopic end of the cylinder (6) is connected to a pressure plate (8). An electric heating plate (9) is provided in the middle of the upper wall of the main body (1), and the positions of the electric heating plate (9) and the pressure plate (8) are adapted to each other. Fixed plates (11) are provided on both the front and rear sides of the electric heating plate (9), and the lower wall surfaces of the two fixed plates (11) are fixedly connected to magnets (13). The shell of the main body (1) is made of iron. Vertical plates (10) are provided on both the left and right sides of the fixed plate (11), and the lower wall surfaces of the two vertical plates (10) are fixedly connected to the upper wall surface of the main body (1). The two fixed plates (11) are slidably connected to the adjacent vertical plates (10).

2. A heat sealing mechanism for producing plastic packaging bags according to claim 1, characterized in that: A power supply is provided inside the main body (1), the electric heating plate (9) is electrically connected to the power supply, a temperature controller (2) is provided on the left side of the front wall of the main body (1), the temperature controller (2) is electrically connected to the electric heating plate (9), and a power switch (3) is provided on the right side of the front wall of the main body (1), and the power switch (3) is electrically connected to the power supply.

3. The heat sealing mechanism for producing plastic packaging bags according to claim 1, characterized in that: The left and right wall surfaces of the fixed plate (11) are fixedly connected with sliders (12), and the adjacent side surfaces of the two vertical plates (10) are provided with two sliding grooves (15). The sliders (12) are slidably connected to the adjacent sliding grooves (15), and the fixed plate (11) is slidably connected to the vertical plates (10) through the sliders (12) and the sliding grooves (15).

4. The heat sealing mechanism for producing plastic packaging bags according to claim 1, characterized in that: Two guide pillars (7) are provided between the upper portion of the folding plate (5) and the upper wall surface of the main body (1). Both guide pillars (7) pass through the interior of the pressing plate (8) and extend to the outside of the pressing plate (8). The pressing plate (8) and the two guide pillars (7) are slidably connected.

5. The heat sealing mechanism for producing plastic packaging bags according to claim 1, characterized in that: The four corners of the lower wall surface of the main body (1) are connected to buffer pads (4), and the lower wall surfaces of the four buffer pads (4) are provided with anti-slip lines.

6. The heat sealing mechanism for producing plastic packaging bags according to claim 1, characterized in that: The middle parts of the upper walls of the two fixing plates (11) are both connected with handles (14), and the outer wall surfaces of the handles (14) are sprayed with corrosion-resistant paint.

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