A food packaging bag sealing device

Abstract

The utility model relates to food packaging technical field, concretely is a kind of food packaging bag sealing device, including shell, material hopper and pressing assembly;The number of pressing assembly is at least one, and pressing assembly is arranged in the inside one side of shell top end and is arranged towards the middle part of shell, and the middle part of pressing assembly is equipped with electric heating plate for heat melting sealing of food packaging bag in use state;Material hopper is slidably installed in the inside middle part of shell bottom end and is located below pressing assembly.The utility model moves packaging bag to the preset position in shell by material hopper, and starts pressing assembly by control component, makes it to packaging bag spout and carries out compression work to it, while pressing assembly drives electric heating plate to move to packaging bag and contact with it, realizes heat melting sealing, ensures that packaging bag is sealed firm, and improves use convenience.

Description

Technical Field

[0001] This utility model relates to the field of food packaging technology, specifically to a sealing device for food packaging bags. Background Technology

[0002] Food packaging bags are a type of packaging design. In order to facilitate the preservation and storage of food, product packaging bags have been developed. Food packaging bags refer to thin film containers that come into direct contact with food and are used to hold and protect food.

[0003] Chinese patent document CN220333145U discloses a food packaging bag sealing device, including a support frame, a plastic food packaging bag, and a heat-melt sealing machine body. The heat-melt sealing machine body is fixedly connected to the upper end face of the support frame. The device also includes: a movable plate, which is rotatably hinged to the upper left end face of the support frame; the plastic food packaging bag is placed on the movable plate and the upper surface of the support frame; two sliding grooves, both of which are carved through the upper end face of the support frame; and a C-shaped clamping plate. The holding plate slides up and down within two grooves, and the upper inner wall of the C-shaped clamping plate is located above the opening of the plastic food packaging bag. A first cylinder is fixedly connected to the upper inner wall of the support frame, and the output end of the first cylinder is fixedly connected to the lower inner wall of the C-shaped clamping plate. A U-shaped support plate slides left and right on the upper inner wall of the support frame, and the left part of the U-shaped support plate is located below the movable plate. A second cylinder is fixedly connected to the inner wall of the support frame, and the output end of the second cylinder is fixedly connected to the right end face of the U-shaped support plate.

[0004] However, in the above solution, when sealing food packaging bags, the bag opening needs to be sealed and placed on a movable plate, and the bag opening needs to be fixed to the main body of the heat-sealing machine by a C-shaped clamping plate. Then, the tail of the food packaging bag needs to be dropped by gravity to seal it. This makes the food packaging bag sealing operation cumbersome and the sealing effect unstable. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a sealing device for food packaging bags.

[0006] The technical solution of this utility model is as follows: A food packaging bag sealing device includes a shell, a hopper, and a pressing component. The pressing component is at least one in number. The pressing component is located on the inner side of the top of the shell and is arranged towards the middle of the shell. The middle of the pressing component is provided with an electric heating plate for heat-sealing the food packaging bag in use. The hopper is slidably installed in the middle of the inner side of the bottom of the shell and is located below the pressing component. The outer side of the bottom of the hopper is provided with a control component for controlling the pressing component to extend towards the middle of the shell and controlling the position of the hopper in use.

[0007] Preferably, multiple support plates are provided on both sides of the middle of the bottom inner side of the shell. The multiple support plates are arranged at equal intervals, and a groove is formed between every two support plates and the inner wall of the shell. Sliding strips are provided on both sides of the hopper, and the sliding strips are located inside the groove.

[0008] Preferably, the depth of the groove is greater than the width of the slide bar, and a limiting block extending into the bottom of the groove is provided on one side of the slide bar.

[0009] Preferably, the side of the slide bar is fitted and connected to the bottom center end face of the housing.

[0010] Preferably, the cross-sectional shape of the hopper cavity is V-shaped.

[0011] Preferably, the pressing assembly includes a pressure plate, a spring, an electric telescopic rod, and a mounting plate. The electric telescopic rod is installed on the inner side of the top of the housing and is arranged towards the middle of the housing. The mounting plate is installed on the end of the electric telescopic rod. The pressure plate is mounted on the side of the mounting plate by the spring, and its edge is slidably connected to the inner wall of the housing.

[0012] Preferably, the mounting plate has a protrusion in the middle, the thickness of the protrusion being greater than the thickness of the pressure plate, and the heating plate is mounted on the side of the protrusion and located in the middle of the pressure plate.

[0013] Preferably, the control component includes an inductive switch and a magnet. The inductive switch is installed on the outer bottom of the hopper and arranged facing the inner wall of the housing, and is connected to the electric telescopic rod wire. There are two magnets, which are respectively set on the hopper and the housing, and the two magnets are attracted to each other.

[0014] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0015] This invention moves the packaging bag to a preset position in the housing through a hopper, and activates the pressing component through the control component to move it toward the opening of the packaging bag and press it. At the same time, the pressing component drives the heating plate to move toward the packaging bag and contact it to achieve heat fusion sealing, ensuring that the packaging bag is firmly sealed and improving the convenience of use. Attached Figure Description

[0016] Figure 1-2 All are perspective views of one embodiment of the present utility model;

[0017] Figure 3 This is a cross-sectional schematic diagram of the shell structure in one embodiment of the present invention;

[0018] Figure 4 This is a schematic diagram of the connection structure between the hopper and the support plate in one embodiment of the present invention;

[0019] Figure 5 This is a schematic diagram of the pressing component structure in one embodiment of the present invention;

[0020] Reference numerals in the attached drawings: 1. Shell; 2. Hopper; 3. Support plate; 4. Pressure plate; 5. Heating plate; 6. Sliding bar; 7. Induction switch; 8. Magnet; 9. Limiting block; 10. Spring; 11. Electric telescopic rod; 12. Mounting plate. Detailed Implementation

[0021] Example 1, as Figure 1-5 As shown, the present invention proposes a food packaging bag sealing device, including a housing 1, a hopper 2, and a pressing assembly. The pressing assembly is at least one in number and is located on the inner side of the top of the housing 1 and facing the middle of the housing 1. The middle of the pressing assembly is provided with an electric heating plate 5 for heat-sealing the food packaging bag in use. The electric heating plate 5 is only for illustration in the prior art diagram. The hopper 2 is slidably installed in the middle of the inner side of the bottom of the housing 1 and is located below the pressing assembly. The middle of the hopper 2 has a cavity with an open top and the cross-sectional projection shape of the cavity is V-shaped, which is used to make the inner wall of the hopper 2 fit and connect with the packaging bag, so that the packaging bag is placed more stably. The outer side of the bottom of the hopper 2 is provided with a control assembly for controlling the pressing assembly to extend towards the middle of the housing 1 and controlling the position of the hopper 2 in use.

[0022] In this embodiment, by moving the hopper 2 to the outside of the housing 1 and placing the food packaging bag into the cavity of the hopper 2, and sliding the hopper 2 to the inside of the housing 1, the control component controls the position of the hopper 2 and activates the pressing component. The control component drives the pressing component to move to the center of the housing 1 to press the packaging bag, closing the bag opening. At the same time, the pressing component drives the heating plate 5 to move towards and contact the packaging bag, achieving heat sealing, ensuring a firm seal, preventing food spoilage, and improving ease of use.

[0023] Example 2, as Figure 3-4 As shown, the present invention proposes a food packaging bag sealing device. Compared with embodiment one, this embodiment differs in that multiple support plates 3 are provided on both sides of the middle part of the bottom inner side of the shell 1. The multiple support plates 3 are arranged at equal intervals, and a sliding groove is formed between every two support plates 3 and the inner wall of the shell 1. Sliding strips 6 are provided on both sides of the hopper 2. The sliding strips 6 are located inside the sliding groove and are used to smoothly slide the hopper 2 inside the shell 1 during use.

[0024] In an optional embodiment, the depth of the chute is greater than the width of the slide bar 6. One side of the slide bar 6 is provided with a limiting block 9 extending into the bottom of the chute. The length of the support plate 3 is less than the inner width of the housing 1, and the distance between the support plate 3 and the inner wall of the housing 1 is used to prevent the hopper 2 from separating from the housing 1 during use by means of the limiting block 9, and to allow the height of the hopper 2 to be adjusted by means of the distance between the support plate 3 and the housing 1, so that packaging bags of different sizes can be placed inside the hopper 2.

[0025] In an optional embodiment, the side of the slide bar 6 is fitted and connected to the bottom middle end face of the housing 1 to ensure that the movement of the hopper 2 is smooth and that the limiting block 9 contacts the inner wall of the housing 1 when the hopper 2 moves to the outside of the housing 1, thereby limiting the position of the hopper 2.

[0026] In this embodiment, the hopper 2 is smoothly slid in the groove by the slide bar 6, so that the hopper 2 moves smoothly in the shell 1. The length of the support plate 3 is less than the inner width of the shell 1, so that the hopper 2 moves to the outside of the shell 1 while the position is adjusted at the end of the support plate 3, so that packaging bags of different sizes can be placed inside the hopper 2.

[0027] Example 3, as Figure 5 As shown, the present invention proposes a food packaging bag sealing device. Compared with Embodiment 1, the difference in this embodiment is that the pressing assembly includes a pressure plate 4, a spring 10, an electric telescopic rod 11, and a mounting plate 12. The electric telescopic rod 11 is installed on the inner side of the top of the housing 1 and is arranged towards the middle of the housing 1. The mounting plate 12 is installed on the end of the electric telescopic rod 11. The pressure plate 4 is installed on the side of the mounting plate 12 through the spring 10, and its edge is slidably connected to the inner wall of the housing 1. It is used to close the bag opening when in use, so that when the electric heating plate 5 heats it, the bag opening is in a straight state, ensuring that the heat-sealed opening is uniform and firm, and improving the aesthetics of the heat-sealed bag opening.

[0028] In an optional embodiment, the mounting plate 12 has a protrusion in the middle, the thickness of which is greater than the thickness of the pressure plate 4. The heating plate 5 is mounted on the side of the protrusion and located in the middle of the pressure plate 4. When in use, the mounting plate 12 drives the heating plate 5 to move from one side of the pressure plate 4 to the other side in the middle of the pressure plate 4 through the protrusion, so that the heating plate 5 can perform heat-sealing work.

[0029] In this embodiment, the electric telescopic rod 11 drives the mounting plate 12 to move toward the packaging bag, and the mounting plate 12, through the spring 10, brings the pressure plate 4 into contact with the packaging bag. The elastic force of the spring 10 tightly presses the pressure plate 4 against the opening of the packaging bag, keeping the opening of the packaging bag flat during the heat-sealing process. At the same time, the mounting plate 12 drives the spring 10 to continue to compress, and the mounting plate 12 drives the electric heating plate 5 to contact the opening of the packaging bag in the middle of the pressure plate 4. This allows the electric heating plate 5 to perform uniform heat-sealing of the opening of the packaging bag, and makes the seal firm and beautiful.

[0030] Example 4, as Figure 2 and Figure 4 As shown, this utility model proposes a food packaging bag sealing device. Compared with Embodiment 1, the difference in this embodiment is that the control component includes an induction switch 7 and a magnet 8. The induction switch 7 is installed on the outer bottom of the hopper 2 and is arranged facing the inner wall of the housing 1. It is connected to the electric telescopic rod 11 by a wire. When the hopper 2 slides inward toward the inner wall of the housing 1, the induction switch 7 detects the position of the inner wall of the housing 1. When the hopper 2 moves to the preset position, the induction switch 7 activates the electric telescopic rod 11, so that the electric telescopic rod 11 works. When the induction switch 7 is in contact with the inner wall of the housing 1, the electric telescopic rod 11 is reset. The induction switch 7 is a non-contact induction switch device such as an infrared photoelectric switch or a proximity switch. There are two magnets 8, which are respectively set on the hopper 2 and the housing 1, and the two magnets 8 are attracted to each other. They are used to limit the position of the hopper 2 on the inner side of the housing 1 during use, so as to ensure the accurate detection of the induction switch 7.

[0031] In this embodiment, the position of the hopper 2 is precisely controlled by the coordinated action of the induction switch 7 and the magnet 8, and the induction switch 7 detects the position of the inner wall of the housing 1, so that the induction switch 7 can open and close the electric telescopic rod 11, making the sealing of the packaging bag more convenient.

[0032] In this invention, a food packaging bag is placed into the cavity of the hopper 2, and the hopper 2 slides towards the inside of the housing 1 via a slide bar 6 in a groove between the support plates 3. At the same time, two magnets 8 are attracted to each other to ensure that the hopper 2 moves stably to the preset position. The induction switch 7 accurately detects the inner wall of the housing 1 and activates the electric telescopic rod 11 through the induction switch 7, which drives the mounting plate 12 to move precisely. The mounting plate 12, through the spring 10, contacts the pressure plate 4 with the packaging bag and closes the opening of the packaging bag, keeping the opening of the packaging bag flat during the heat-sealing process. At the same time, the mounting plate 12 drives the spring 10 to continue to compress, and the mounting plate 12 drives the electric heating plate 5 to move towards the packaging bag in the middle of the pressure plate 4 and contact it, so that the electric heating plate 5 performs uniform heat-sealing of the packaging bag, and makes the seal firm and beautiful.

[0033] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A sealing device for food packaging bags, characterized in that, It includes a shell (1), a hopper (2), and a pressing assembly; The number of pressing components is at least one. The pressing component is arranged on the inner side of the top of the housing (1) and facing the middle of the housing (1). The middle of the pressing component is provided with an electric heating plate (5) for heat sealing the food packaging bag in the use state. The hopper (2) is slidably installed on the inner middle of the bottom end of the housing (1) and located below the pressing assembly. The bottom outer side of the hopper (2) is provided with a control assembly for controlling the pressing assembly to extend to the middle of the housing (1) and controlling the position of the hopper (2) in the use state.

2. The food packaging bag sealing device according to claim 1, characterized in that, Multiple support plates (3) are provided on both sides of the middle of the bottom inner side of the shell (1). The multiple support plates (3) are arranged at equal distances, and a groove is formed between every two support plates (3) and the inner wall of the shell (1). Sliding strips (6) are provided on both sides of the hopper (2), and the sliding strips (6) are located inside the groove.

3. The food packaging bag sealing device according to claim 2, characterized in that, The depth of the groove is greater than the width of the slide bar (6), and a limiting block (9) extending into the bottom of the groove is provided on one side of the slide bar (6).

4. A food packaging bag sealing device according to claim 3, characterized in that, The side of the slide bar (6) is fitted and connected to the bottom middle end face of the housing (1).

5. A food packaging bag sealing device according to claim 1, characterized in that, The cross-sectional projection shape of the hopper (2) is V-shaped.

6. A food packaging bag sealing device according to claim 1, characterized in that, The pressing assembly includes a pressure plate (4), a spring (10), an electric telescopic rod (11), and a mounting plate (12); The electric telescopic rod (11) is installed on the inner side of the top of the housing (1) and is arranged towards the middle of the housing (1); The mounting plate (12) is installed at the end of the electric telescopic pole (11); The pressure plate (4) is mounted on the side of the mounting plate (12) by a spring (10), and its edge is slidably connected to the inner wall of the housing (1).

7. A food packaging bag sealing device according to claim 6, characterized in that, The mounting plate (12) has a protrusion in the middle, the thickness of which is greater than that of the pressure plate (4), and the heating plate (5) is mounted on the side of the protrusion and located in the middle of the pressure plate (4).

8. A food packaging bag sealing device according to claim 6, characterized in that, The control components include a sensor switch (7) and a magnet (8); The induction switch (7) is installed on the outer bottom of the hopper (2) and arranged facing the inner wall of the housing (1), and is connected to the wire of the electric telescopic rod (11); There are two magnets (8), which are respectively set on the hopper (2) and the shell (1), and the two magnets (8) are attracted to each other.

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