Feeding mechanism of heat sealing machine

Abstract

The utility model is suitable for the technical field of heat sealing machines, and provides a heat sealing machine feeding mechanism which comprises a bottom plate, and a vertical guide column is fixedly connected to the upper portion of the bottom plate. A fixed rod is fixedly connected above the guide column; one ends of a plurality of extension springs are fixedly connected below the fixed rod, and the other ends of the extension springs are fixedly connected above the lifting plate; the lifting plate is slidably connected with guide columns; one ends of a plurality of first compression springs are fixedly connected below the lifting plate, and the other ends of the first compression springs are fixedly connected above the moving plate; the moving plate is slidably connected with the guide columns; in this way, feeding can be conducted on the heat sealing machine, fingers of workers are prevented from being scalded in the feeding process of the heat sealing machine, and the situation that the heating positions, close to the heat sealing machine, of the two ends of a packaging bag are pinched by hands can be avoided in the feeding process of the heat sealing machine; and through cooperation of a compression spring, a limiting device and a movable plate, the packaging bag can be pressed, and the situation that a bag opening of the packaging bag is opened is avoided.

Description

Technical Field

[0001] This utility model relates to the field of heat sealing machine technology, and in particular to a feeding mechanism for a heat sealing machine. Background Technology

[0002] A heat sealing machine is a device that uses electrical energy to convert into heat energy to heat seal the opening of a packaging bag. Heat sealing machines are widely used in enterprise production processes. After producing products, enterprises place the products inside packaging bags and place the opening of the packaging bags on the heat sealing machine to heat seal the opening of the packaging bags.

[0003] When heat-sealing packaging bags, especially those made of rigid materials, the areas requiring heat sealing are often open due to the contents inside. Directly pressing and heat-sealing these bags can create wrinkles, affecting the seal. Typically, workers hold the ends of the bag by hand to stretch it and prevent wrinkles before placing the area to be sealed onto a heat-sealing machine. To save heating time, the heat-sealing machine operates continuously when sealing multiple bags, keeping the heating elements constantly at high temperatures. This can easily burn a worker's fingers when they hold the bag and place it into the machine. Similarly, when using a heavy pressure plate to press down on the bags, workers can easily injure their fingers if they are not paying attention.

[0004] When the heights of the items inside the packaging bag are different, ordinary pressure plates are unlikely to keep the heat-sealing position at the middle height of the items inside the packaging bag. Utility Model Content

[0005] To address the aforementioned shortcomings, the purpose of this utility model is to provide a feeding mechanism for a heat sealing machine. This mechanism can feed materials into the heat sealing machine, preventing workers' fingers from being burned during the feeding process. It also prevents workers from pinching the ends of the packaging bag near the heating position of the heat sealing machine. The combination of a compression spring, a limiting device, and a moving plate can compress the packaging bag, preventing the bag opening from opening. The compression spring also prevents workers from being injured by the pressure. The base plate and fixed plate allow the packaging bag placed on the base plate to easily move closer to or further away from the heating position of the heat sealing machine. The lower pressure plate, in conjunction with the first bolt, can adjust the position of the lower pressure plate to ensure that the engagement position of the upper and lower pressure plates is equal to the height of the middle of the contents inside the packaging bag.

[0006] To achieve the above objectives, this utility model provides a feeding mechanism for a heat sealing machine, including a base plate, with a vertical guide column fixedly connected above the base plate; a fixed rod fixedly connected above the guide column; one end of several tension springs fixedly connected below the fixed rod, and the other end of the tension springs fixedly connected above a lifting plate; the lifting plate slidably connected to the guide column; one end of several first compression springs fixedly connected below the lifting plate, and the other end of the first compression springs fixedly connected above a moving plate; the moving plate slidably connected to the guide column; and a limiting device provided on the lifting plate.

[0007] According to the feeding mechanism of the heat sealing machine of this utility model, the upper limit cover of the limiting device is fixedly connected to the lifting plate; the upper limit cover is slidably connected to the limiting pin; a second compression spring is provided between the limiting cover and the limiting pin; the lower limit post of the limiting device is installed on the base plate; a cylindrical rod is fixedly connected to the top of the lower limit post; a stop block is fixedly connected to the top of the cylindrical rod; and a sliding block is slidably connected to the cylindrical rod.

[0008] According to the feeding mechanism of the heat sealing machine of this utility model, the upper pressure plate is fixedly connected to the left side of the moving plate; and the lower pressure plate is provided above the bottom plate.

[0009] According to the heat sealing machine feeding mechanism of this utility model, a vertical sliding rod is slidably connected to one side of the lower pressure plate; the lower pressure plate is threadedly connected to a first bolt; and the bottom of the first bolt is rotatably connected to a base plate.

[0010] According to the heat sealing machine feeding mechanism of this utility model, the bottom of the base plate is slidably connected to the fixing plate; the bottom of the base plate is provided with a T-shaped groove; and the top of the fixing plate is provided with a T-shaped rail.

[0011] According to the heat sealing machine feeding mechanism of this utility model, the bottom of the lower limit post is fixedly connected to the top of the second bolt; the bottom plate is threadedly connected to the second bolt.

[0012] This utility model provides a feeding mechanism for a heat sealing machine, including a base plate. The base plate can fix guide columns and can also hold packaging bags, providing support for them. A vertical guide column is fixedly connected above the base plate, providing vertical guidance and facilitating the fixation of a fixing rod. A fixing rod is fixedly connected above the guide columns, allowing for easy connection to one end of a tension spring, providing tension to the spring. Several tension springs are fixedly connected to one end below the fixing rod, with the other end fixedly connected to a lifting plate. The tension springs provide an upward force for the lifting plate, preventing downward pressure from a hand or limiting device. The tension spring allows the lifting plate to quickly rise and return to its original position. The lifting plate is slidably connected to the guide column, enabling it to move vertically upwards and downwards. Several first compression springs are fixedly connected at one end to the bottom of the lifting plate, and the other end of each first compression spring is fixedly connected to the top of the moving plate. The first compression springs provide downward elastic force to the moving plate, which helps to press down and secure the packaging bag. The compression springs also provide room for the moving plate to move, preventing injury to hands when the moving plate is subjected to excessive downward pressure. The moving plate is slidably connected to the guide column, and the lifting plate is equipped with a limiting device. The slidable connection between the moving plate and the guide column helps to restrict the direction of movement of the moving plate, allowing it to move only in the up and down direction. Attached Figure Description

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

[0014] Figure 2 This is a second-view structural schematic diagram of the present invention;

[0015] Figure 3 This is a sectional view of the upper limit cover;

[0016] Figure 4 This is a schematic diagram of the structure when the sliding block slides up and contacts the stop block;

[0017] In the diagram: 1-base plate, 2-fixed plate, 3-fixed rod, 4-guide post, 5-tension spring, 6-upper limit cover, 61-limit pin, 62-second compression spring, 7-lifting plate, 8-first compression spring, 9-moving plate, 10-upper pressure plate, 11-lower pressure plate, 12-slide rod, 13-T-shaped slide rail, 14-first bolt, 15-second bolt, 16-lower limit post, 17-sliding block, 18-cylindrical rod, 19-stop block. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0019] See Figure 1 , Figure 2 This utility model provides a feeding mechanism for a heat sealing machine. The feeding mechanism includes a base plate 1, on which packaging bags can be placed and supported. Vertical guide columns 4 are fixedly connected to the top of the base plate 1. The bottom ends of two vertical circular guide columns 4 are fixed to the top of the base plate 1. A fixing rod 3 is fixedly connected to the top of the guide columns 4, with both ends of the fixing rod 3 fixedly connected to the tops of the two circular guide columns 4 respectively. The fixing rod 3 facilitates the fixed connection of one end of a tension spring 5, providing support for the top of the tension spring 5. Several tension springs 5 ​​are fixedly connected to one end below the fixing rod 3, and the other ends of the tension springs 5 ​​are fixedly connected to the top of a lifting plate 7. The tension springs 5 ​​are evenly spaced. The lifting plate 7 is slidably connected to the guide columns 4. Both ends of the lifting plate 7 have through holes, through which two guide columns 4 pass. Several first compression springs 8 are fixedly connected to one end below the lifting plate 7, and the other ends of the first compression springs 8 are fixedly connected to the top of a moving plate 9. The first compression springs 8 are evenly spaced. The movable plate 9 is slidably connected to the guide column 4. Both ends of the movable plate 9 have through holes, through which two guide columns 4 pass. Both the lifting plate 7 and the movable plate 9 can slide vertically on the guide rods. The lifting plate 7 is equipped with a limiting device to restrict its movement. When a worker presses down on the lifting plate 7, causing the movable plate 9 to descend to a designated position and the first compression spring 8 to be compressed to a certain extent, the limiting device restricts the movement of the movable plate 9. The packaging bag is compressed, freeing the worker's hands. After the worker flattens the packaging bag, the base plate 1, along with the packaging bag, can be moved to a suitable position for heat sealing.

[0020] See Figure 1 , Figure 3 , Figure 4Furthermore, the upper limit cover 6 of the limiting device of this utility model is fixedly connected to the lifting plate 7, and the upper limit cover 6 is slidably connected to the limiting pin 61. A second compression spring 62 is provided between the upper limit cover 6 and the limiting pin 61. The lower limit post 16 of the limiting device is installed on the base plate 1. A cylindrical rod 18 is fixedly connected to the top of the lower limit post 16, and a stop block 19 is fixedly connected to the top of the cylindrical rod 18. The cylindrical rod 18 is slidably connected to the sliding block 17. The upper limit cover 6 has a vertical through hole for the stop block 19 and the sliding block 17 in the middle position. The upper limit cover 6 has two holes for placing the limiting pin 61 on both sides. The two limiting pins 61 are placed in the two holes respectively, and both limiting pins 61 can slide inside the holes. The two ends of the second compression spring 62 are fixedly connected to the limiting pin 61 and the upper limit cover 6 respectively. The second compression spring 62 provided between the limiting pin 61 and the upper limit cover 6 can pop a part of the limiting pin 61 into the vertical through hole of the upper limit cover 6. Below the limiting pin 61 is a ramp that cooperates with the stop block 19 and the sliding block 17. The stop block 19 is a cone shape that is narrower at the top and wider at the bottom, and the sliding block 17 is a cone shape that is wider at the top and narrower at the bottom. When the limiting pin 61 moves downward to the position between the stop block 19 and the sliding block 17, the stop block 19 and the limiting pin 61 cooperate to limit the lifting plate 7. The limiting pin 61 continues to move downward to below the sliding block 17. When the limiting pin 61 moves upward, it drives the sliding block 17 to move upward. The sliding block 17 and the stop block 19 fit together, allowing the limiting pin 61 to pass over the stop block 19 and release the limitation on the lifting plate 7. The upper pressure plate 10 is fixedly connected to the left side of the moving plate 9, and the lower pressure plate 11 is set above the bottom plate. The setting of the upper pressure plate 10 and the lower pressure plate 11 can better press the bag opening of the packaging bag and avoid the guide column 4 from obstructing the use of the heat sealing machine.

[0021] See Figure 1 , Figure 2 Furthermore, the lower pressure plate 11 of this invention is slidably connected to a vertical slide rod 12 on one side. The lower pressure plate 11 is threadedly connected to a first bolt 14, and the bottom of the first bolt 14 is rotatably connected to the base plate 1. The lower pressure plate 11 can move vertically on the floor. When packaging items of different heights, the position of the lower pressure plate 11 can be adjusted by rotating the first bolt 14, so that the engagement position between the lower pressure plate 11 and the upper pressure plate 10 is located at the middle height of the item, which is more suitable for pre-pressing the bag openings of different packaging bags. The bottom of the base plate 1 is slidably connected to a fixing plate 2. The bottom of the base plate 1 is provided with a T-shaped slide groove, and the top of the fixing plate 2 is provided with a T-shaped slide rail 13. After the packaging bag is pre-pressed and flattened by the upper pressure plate 10 and the lower pressure plate 11, pushing the base plate 1 can send the bag opening that needs to be heat-sealed to the heat-sealing machine for heat sealing. The bottom of the lower limit post 16 is fixedly connected to the top of the second bolt 15, and the base plate 1 is threadedly connected to the second bolt 15. Rotating the second bolt 15 can adjust the position of the lower limit post 16, thereby changing the position of the lifting plate 7 when it is limited, and at the same time, it can change the pressure on the packaging bag.

[0022] In summary, this utility model provides a feeding mechanism for a heat sealing machine, including a base plate. The base plate can fix the guide column and can also hold packaging bags, providing support for them. A vertical guide column is fixedly connected above the base plate, providing vertical guidance and also facilitating the fixation of a fixing rod. A fixing rod is fixedly connected above the guide column, allowing for easy connection to one end of a tension spring, providing tension to the spring. Several tension springs are fixedly connected to one end below the fixing rod, with the other end fixedly connected above a lifting plate. The tension springs provide an upward force for the lifting plate, allowing it to move upwards when no manual or limiting device is applied. The tension springs under pressure facilitate the rapid rise and return of the lifting plate to its original position. The lifting plate is slidably connected to the guide column, allowing it to move vertically upwards and downwards. Several first compression springs are fixedly connected at one end to the bottom of the lifting plate, with the other end fixedly connected to the top of the moving plate. These compression springs provide downward elastic force to the moving plate, helping to press down and secure the packaging bag. The compression springs also provide room for the moving plate to move, preventing injury to hands when subjected to excessive downward pressure. The moving plate is slidably connected to the guide column, and the lifting plate is equipped with a limiting device. This slidable connection restricts the direction of movement of the moving plate, allowing it to move only in the up-down direction.

[0023] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A feeding mechanism for a heat sealing machine, characterized in that, The system includes a base plate, with a vertical guide column fixedly connected to the top of the base plate; a fixed rod fixedly connected to the top of the guide column; one end of several tension springs fixedly connected to the bottom of the fixed rod, and the other end of the tension springs fixedly connected to the top of a lifting plate; the lifting plate is slidably connected to the guide column; one end of several first compression springs is fixedly connected to the bottom of the lifting plate, and the other end of the first compression springs is fixedly connected to the top of a moving plate; the moving plate is slidably connected to the guide column; and the lifting plate is equipped with a limiting device.

2. The feeding mechanism of the heat sealing machine according to claim 1, characterized in that, The upper limit cover of the limiting device is fixedly connected to the lifting plate; the upper limit cover is slidably connected to the limiting pin; a second compression spring is provided between the limiting cover and the limiting pin; the lower limit post of the limiting device is installed on the base plate; a cylindrical rod is fixedly connected to the top of the lower limit post; a stop block is fixedly connected to the top of the cylindrical rod; and a sliding block is slidably connected to the cylindrical rod.

3. The feeding mechanism of the heat sealing machine according to claim 2, characterized in that, The upper pressure plate is fixedly connected to the left side of the movable plate; the lower pressure plate is provided above the bottom plate.

4. The feeding mechanism of the heat sealing machine according to claim 3, characterized in that, A vertical sliding rod is slidably connected to one side of the lower pressure plate; the lower pressure plate is threadedly connected to a first bolt; the bottom of the first bolt is rotatably connected to a base plate.

5. The feeding mechanism of the heat sealing machine according to claim 1, characterized in that, The bottom of the base plate is slidably connected to the fixing plate; the bottom of the base plate is provided with a T-shaped sliding groove; and the top of the fixing plate is provided with a T-shaped sliding rail.

6. The feeding mechanism of the heat sealing machine according to claim 2 or 4, characterized in that, The bottom of the lower limit post is fixedly connected to the top of the second bolt; the base plate is threadedly connected to the second bolt.

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