Control device with protection function for heat sealing of packaging bag

Abstract

The utility model relates to the technical field of packaging bag heat sealing production, and discloses a packaging bag heat sealing control device with a protection function, which comprises a heat sealing machine body, a protection door rotating upwards is hinged on the heat sealing machine body, the front side of the heat sealing machine body is fixedly connected with a micro switch, and the micro switch is connected with the protection door. The microswitch is electrically connected with a control system of the heat sealing machine body, a pressing plate is fixedly connected to the lower end of the surface of the protection door, a protection mechanism used for protecting the microswitch is fixedly connected to the front face of the heat sealing machine body, a fixing base is fixedly connected to the protection mechanism, and a connecting base is fixedly connected to the side face of the pressing plate. The micro switch is connected with the control system on the heat sealing machine body, when the protective door is closed, a circuit in the micro switch is closed, so that the heat sealing machine body can work normally, when the protective door is opened, the circuit in the micro switch is disconnected, so that the heat sealing machine body is in an open circuit state, and the heat sealing machine can work normally. Therefore, operators are prevented from entering the equipment to cause safety accidents.

Description

Technical Field

[0001] This utility model relates to the field of heat-sealing production technology for packaging bags, specifically a control device for heat-sealing packaging bags with protective functions. Background Technology

[0002] A heat-sealing machine is a common packaging machine that heats and seals plastic film material to form a sealed packaging bag. With the rapid development of the global packaging industry, the market size of heat-sealing machines continues to expand, especially in industries such as food, pharmaceuticals, cosmetics, and daily chemical products. The increasing demand for efficient and precise heat-sealing machines in these industries has driven market growth. The rising requirements for packaging quality and efficiency in these industries have made heat-sealing machines, as key packaging equipment, increasingly important and in demand.

[0003] Some existing heat sealing machines for packaging bags are equipped with protective doors, while others are not. Heat sealing machines generate high temperatures during operation. Protective doors can isolate these high-temperature areas and effectively prevent operators from putting their hands or bodies into the machine while it is running, thus preventing operators from accidentally coming into contact with high-temperature components and avoiding mechanical injury or burns. However, when the protective door is open, the heat sealing machine is still in normal working condition, and there is still a possibility that operators may put their hands or bodies into the machine, resulting in a safety accident. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a control device for heat-sealing packaging bags with protective functions, which can protect the safety of workers and prevent safety accidents.

[0005] This utility model provides the following technical solution: a control device for heat sealing packaging bags with protective function, including a heat sealing machine body, a protective door that rotates upwards hinged on the heat sealing machine body, a micro switch fixedly connected to the front of the heat sealing machine body, the micro switch being electrically connected to the control system of the heat sealing machine body, a pressing plate fixedly connected to the lower end of the surface of the protective door, a protective mechanism for protecting the micro switch fixedly connected to the front of the heat sealing machine body, a fixed seat fixedly connected to the protective mechanism, and a connecting seat fixedly connected to the side of the pressing plate.

[0006] Furthermore, the protection mechanism includes a base plate fixedly connected to the heat sealing machine body, and a side plate fixedly connected to the front end of the base plate.

[0007] Furthermore, a baffle is fixedly connected to the upper end of the side plate.

[0008] Furthermore, the fixing base includes three sliding blocks fixedly connected to the side plate. A groove is provided on the sliding block located in the middle position. Insert rods are slidably connected to the three sliding blocks. A rotating handle is fixedly connected to the insert rod. The thickness of the rotating handle is less than the width of the groove. A limit rod is fixedly connected to the insert rod.

[0009] Furthermore, the front end of the insertion rod is provided with rounded corners.

[0010] Furthermore, the connecting seat includes a connecting plate fixedly connected to the side of the pressing plate, and the connecting plate has a round hole that matches the insertion rod.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] This protective control device for heat-sealing packaging bags connects a microswitch to the control system on the heat-sealing machine. When the protective door is closed, a pressing plate at the lower end of the door presses the handle of the microswitch, thereby pressing the button on the microswitch. This closes the internal circuit of the microswitch, allowing the heat-sealing machine to operate normally. When the protective door is opened, the button is released, causing the internal circuit of the microswitch to open. This sends a signal to the control system of the heat-sealing machine, putting the machine in an open-circuit state and effectively preventing operators from entering the equipment and causing safety accidents. Attached Figure Description

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

[0014] Figure 2 This is an exploded view of the entire utility model;

[0015] Figure 3 for Figure 2 Enlarged view of point A above;

[0016] Figure 4 for Figure 2 Enlarged view of point B above.

[0017] In the diagram: 1. Heat sealing machine body; 2. Protective door; 3. Micro switch; 4. Press plate; 5. Protection mechanism; 501. Base plate; 502. Side plate; 6. Fixed seat; 601. Sliding block; 602. Groove; 603. Insert rod; 604. Rotating handle; 605. Limiting rod; 7. Connecting seat; 701. Connecting plate; 702. Round hole; 8. Baffle. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Please see Figures 1 to 4 A control device for heat sealing packaging bags with protective function includes a heat sealing machine body 1. A protective door 2 that rotates upward is hinged to the heat sealing machine body 1. A micro switch 3 is fixedly connected to the front of the heat sealing machine body 1. The micro switch 3 is electrically connected to the control system of the heat sealing machine body 1. A pressing plate 4 is fixedly connected to the lower end of the surface of the protective door 2. A protection mechanism 5 for protecting the micro switch 3 is fixedly connected to the front of the heat sealing machine body 1. A fixing seat 6 is fixedly connected to the protection mechanism 5. A connecting seat 7 is fixedly connected to the side of the pressing plate 4.

[0020] like Figures 1 to 4As shown, the protective control device for heat-sealing packaging bags in this utility model, when in use, first closes the protective door 2 hinged to the heat-sealing machine body 1. At this time, the pressing plate 4 presses the handle on the micro switch 3, causing the handle to rotate downwards. During the rotation, the handle presses the button located below the handle, and the spring connected to the button is also compressed, thereby closing the circuit inside the micro switch 3. After the protective door 2 is closed, the connecting seat 7 located on the side of the pressing plate 4 is located on the right side of the micro switch 3 and the protection mechanism 5. Pick up the rotating handle 604 and make the rotating handle 604 horizontal. Move the rotating handle 604 to the right, causing the insertion rod 603 to move to the right until the rotating handle 604 is between the two sliding blocks 601 on the right. Then rotate the rotating handle 604 downwards, thereby fixing the rotating handle 604 between the two sliding blocks 601 on the right. During the movement of the insertion rod 603, the right end of the insertion rod 603 gradually inserts into the connecting plate 701. Inside the circular hole 702, the moved insert rod 603 is fixed, thus remaining inside the circular hole 702. This fixes the connecting seat 7 and the protective door 2, preventing the protective door 2 from being opened arbitrarily and stopping the heat sealing operation. When it is necessary to open the protective door 2, the fixing action of the fixing seat 6 on the connecting seat 7 is canceled, thus releasing the fixation of the protective door 2. The protective door 2 is rotated upwards. As the protective door 2 rotates upwards, the pressing plate 4 also rotates upwards, and the pressing plate 4 gradually releases the pressure on the handle of the micro switch 3, causing the spring connected to the button to release energy, pushing the button upwards, and the handle also rotates upwards. When the button moves upwards and returns to its original state, the circuit inside the micro switch 3 is disconnected, thus putting the heat sealing machine body 1 in an open circuit state. This ensures that when the protective door 2 is opened, the heat sealing machine body 1 stops working, preventing operators from entering the interior of the heat sealing machine body 1 and causing a safety accident.

[0021] like Figure 3 As shown, the protection mechanism 5 includes a base plate 501 fixedly connected to the heat sealing machine body 1, and a side plate 502 fixedly connected to the front end of the base plate 501.

[0022] Specifically, when the protective door 2 is opened, the micro switch 3 is in an open circuit state, which causes the heat sealing machine body 1 to be in an open circuit and stop working. The base plate 501 and the side plate 502 can effectively protect the handle on the micro switch 3, preventing workers from accidentally pressing the handle of the micro switch 3 when standing near the heat sealing machine body 1 or leaning against the heat sealing machine body 1 to inspect the inside. During this time, the micro switch 3 will be in a closed circuit state, which will also cause the heat sealing machine body 1 to be in a closed circuit state. It will be easy to continue to start the heat sealing machine body 1, thus causing a safety accident.

[0023] like Figure 3 As shown, a baffle 8 is fixedly connected to the upper end of the side plate 502.

[0024] Specifically, the side plate 502 is optional. Without obstructing the upward rotation of the pressing plate 4, it can further reduce the exposed area at the top of the micro switch 3 and enhance the protection of the micro switch 3.

[0025] like Figure 3 As shown, the fixed base 6 includes three sliding blocks 601 fixedly connected to the side plate 502. The sliding block 601 located in the middle position has a groove 602. Insert rods 603 are slidably connected to the three sliding blocks 601. A rotating handle 604 is fixedly connected to the insert rod 603. The thickness of the rotating handle 604 is less than the width of the groove 602. A limit rod 605 is fixedly connected to the insert rod 603.

[0026] Specifically, pick up the rotating handle 604 and rotate it. When the rotating handle 604 is in a horizontal position, the insertion rod 603 can be moved back and forth to adjust its position. When the rotating handle 604 is moved between the two sliding blocks 601 on the right side, and the rotating handle 604 is rotated downwards, the right end of the insertion rod 603 can be positioned to the right of the micro switch 3 and the protection mechanism 5. The limiting rod 605 prevents the right end of the insertion rod 603 from disengaging from the sliding block 601 in the middle position.

[0027] like Figure 3 As shown, the front end of the insertion rod 603 is provided with rounded corners.

[0028] Specifically, the front end of the insertion rod 603 is rounded to facilitate quick insertion of the insertion rod 603 into the round hole 702 on the connecting plate 701.

[0029] like Figure 4 As shown, the connecting seat 7 includes a connecting plate 701 fixedly connected to the side of the pressing plate 4, and the connecting plate 701 has a round hole 702 that matches the insertion rod 603.

[0030] Specifically, after the protective door 2 is closed, the connecting seat 7 located on the side of the pressing plate 4 is located to the right of the micro switch 3 and the protection mechanism 5. Pick up the rotating handle 604 and make the rotating handle 604 horizontal. Move the rotating handle 604 to the right, so that the insertion rod 603 moves to the right until the rotating handle 604 is between the two sliding blocks 601 on the right. Then rotate the rotating handle 604 downward, thereby fixing the rotating handle 604 between the two sliding blocks 601 on the right. During the movement of the insertion rod 603, the right end of the insertion rod 603 is gradually inserted into the round hole 702 on the connecting plate 701. Since the insertion rod 603 is fixed after the movement, the insertion rod 603 will remain in the round hole 702, thereby fixing the connecting seat 7 and the protective door 2.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A control device for heat-sealing packaging bags with protective function, comprising a heat-sealing machine body (1), characterized in that: The heat sealing machine body (1) is hinged with an upward rotating protective door (2). A micro switch (3) is fixedly connected to the front of the heat sealing machine body (1). The micro switch (3) is electrically connected to the control system of the heat sealing machine body (1). A pressing plate (4) is fixedly connected to the lower end of the surface of the protective door (2). A protection mechanism (5) for protecting the micro switch (3) is fixedly connected to the front of the heat sealing machine body (1). A fixing seat (6) is fixedly connected to the protection mechanism (5). A connecting seat (7) is fixedly connected to the side of the pressing plate (4).

2. The control device for heat-sealing packaging bags with protective function according to claim 1, characterized in that: The protection mechanism (5) includes a base plate (501) fixedly connected to the heat sealing machine body (1), and a side plate (502) is fixedly connected to the front end of the base plate (501).

3. The control device for heat-sealing packaging bags with protective function according to claim 2, characterized in that: A baffle (8) is fixedly connected to the upper end of the side plate (502).

4. The control device for heat-sealing packaging bags with protective function according to claim 1 or 2, characterized in that: The fixed base (6) includes three sliding blocks (601) fixedly connected to the side plate (502). The sliding block (601) located in the middle position has a groove (602). Insert rods (603) are slidably connected to the three sliding blocks (601). A rotating handle (604) is fixedly connected to the insert rod (603). The thickness of the rotating handle (604) is less than the width of the groove (602). A limit rod (605) is fixedly connected to the insert rod (603).

5. The control device for heat-sealing packaging bags with protective function according to claim 4, characterized in that: The front end of the insertion rod (603) is provided with rounded corners.

6. The control device for heat-sealing packaging bags with protective function according to claim 4, characterized in that: The connecting seat (7) includes a connecting plate (701) fixedly connected to the side of the pressing plate (4), and the connecting plate (701) has a round hole (702) that matches the insertion rod (603).

7. The control device for heat-sealing packaging bags with protective function according to claim 5, characterized in that: The connecting seat (7) includes a connecting plate (701) fixedly connected to the side of the pressing plate (4), and the connecting plate (701) has a round hole (702) that matches the insertion rod (603).

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