Food packaging bag hot pressing device

Abstract

The invention relates to the technical field of hot-pressing edge sealing, and discloses a food packaging bag hot-pressing device which comprises a supporting frame and an electric push rod installed on the supporting frame, a sliding frame is installed at the lower end of the electric push rod, sliding blocks are slidably connected to the two ends of the sliding frame, and a hot-pressing plate is installed at one end of each sliding block. An adjusting column is slidably connected into the sliding block, and an adjusting device is installed at the lower end of the adjusting column and used for adjusting the position of the food bag. The conveying belt is used for guiding air to the periphery, so that the air is used for blowing the food packaging bag to float upwards, then the vertical plates are rotated to abut against the side edge of the food packaging bag, the two vertical plates are used for clamping the food packaging bag, and the food packaging bag is clamped by relatively sliding the two vertical plates. Therefore, the two vertical plates drive the food packaging bag to be close to the center line of the sliding frame, the hot-pressing center position of the deviated food packaging bag is adjusted, and the hot-pressing effect is improved.

Description

Technical Field

[0001] This invention relates to the field of hot-press sealing technology, specifically to a hot-pressing device for food packaging bags. Background Technology

[0002] A heat sealing machine is a sealing device used for plastic film packaging. It melts and bonds the film material through heating and pressurization to achieve a high-strength seal. It is widely used in the production of flexible packaging in industries such as food, medicine, daily chemicals, and industrial products.

[0003] Existing hot stamping devices for food packaging bags cannot identify whether the food packaging bag is in the center of the hot stamping position. When the food packaging bag is not in the center of the hot stamping position, it will cause the hot stamping edge to shift after hot stamping, resulting in poor quality of the hot stamped food packaging bag. Secondly, because there is air inside the food packaging bag, when the hot stamping device is hot stamping the edge, the air inside the food packaging bag will generate air bubbles at the edge, resulting in poor hot stamping edge sealing effect. Summary of the Invention

[0004] This invention provides a hot-pressing device for food packaging bags, which has the beneficial effect of good hot-pressing sealing effect. It solves the problem mentioned in the background art that when the hot-pressing device is used to hot-press the sealing edge of the food packaging bag, the air inside the food packaging bag will generate air bubbles at the sealing edge, resulting in poor hot-pressing sealing effect.

[0005] The present invention provides the following technical solution: a food packaging bag hot pressing device, including a support frame and an electric push rod installed on the support frame, a slide is installed at the lower end of the electric push rod, sliders are slidably connected at both ends of the slide, a pressing plate is installed at one end of the slider, an adjusting column is slidably connected inside the slider, and an adjusting device is installed at the lower end of the adjusting column, the adjusting device being used to adjust the position of the food bag; The adjustment device includes a vertical plate rotatably connected to the lower end of the adjustment column. The lower end of the vertical plate is provided with a spray hole for blowing up the food packaging bag. One end of the vertical plate is rotatably connected to a squeezing plate for squeezing the air bubbles inside the food packaging bag.

[0006] As an optional solution of the hot pressing device for food packaging bags according to the present invention, the lower end of the adjusting column is provided with a semi-circular arc, one end of the semi-circular arc is provided with a first surface, and the other end of the semi-circular arc is provided with a second surface. The lower end of the adjusting column is equipped with a first short shaft, and the upper end of the vertical plate is sleeved on the outer surface of the first short shaft. A spring clip is also installed at one end of the vertical plate, and the upper end of the spring clip is connected to the lower end of the semi-circular arc.

[0007] As an optional solution of the hot pressing device for food packaging bags according to the present invention, the upper end of the vertical plate is provided with a second interface, and the lower end of the semi-circular arc is provided with a first interface, the first interface being used to transmit air to the second interface; The vertical plate has a first cavity inside, and the first cavity, the second interface, and the spray hole are connected.

[0008] As an optional embodiment of the hot pressing device for food packaging bags described in this invention, a second short shaft is installed at the lower end of the vertical plate, one end of the extrusion plate is sleeved on the outer surface of the second short shaft, and the second short shaft and the extrusion plate are connected by a torque spring. An arc-shaped chamber is also installed at one end of the vertical plate, and a push plate is slidably connected inside the arc-shaped chamber. The push plate is used to squeeze the extrusion plate to rotate. One end of the arc-shaped chamber is also equipped with a venting groove.

[0009] As an optional embodiment of the hot pressing device for food packaging bags according to the present invention, a support spring is installed at one end of the extrusion plate, and a rubber block is installed at one end of the support spring.

[0010] As an optional embodiment of the hot pressing device for food packaging bags described in this invention, the vertical plate has a second cavity inside, and the second cavity is connected to the arc-shaped chamber.

[0011] As an optional embodiment of the hot pressing device for food packaging bags described in this invention, an air box is installed at the upper end of the slide, a piston plate is slidably connected inside the air box, a connecting column is installed at the upper end of the piston plate, and the upper end of the connecting column is connected to the lower end of the support frame. The air box is equipped with a first transmission pipe and a second transmission pipe at its two ends, and a connector is installed at one end of each of the first and second transmission pipes. The adjusting column is also provided with sockets at both ends, and the connectors are used to be inserted into the sockets.

[0012] As an optional embodiment of the hot pressing device for food packaging bags according to the present invention, the connector includes a guide pipe connected to the lower end of the first transmission pipe and the second transmission pipe. A cylindrical barrel is installed at one end of the guide pipe. A cylindrical tube is slidably connected inside the cylindrical barrel. A circular ring is also installed on the outer surface of the cylindrical tube. A conical tube is installed at one end of the cylindrical tube and is used to insert into the socket.

[0013] As an optional embodiment of the hot pressing device for food packaging bags described in this invention, a steel cable is installed at one end of the vertical plate, and the upper end of the steel cable is connected to the lower end of the support frame. A return spring is installed at one end of the adjusting column, and the adjusting column is connected to the slide via the return spring.

[0014] The present invention has the following beneficial effects: 1. This food packaging bag hot pressing device uses a conveyor belt to guide air to all sides, thereby using the air to blow the food packaging bag upwards. Then, the vertical plates are rotated so that they abut against the side of the food packaging bag. The food packaging bag is clamped by the two vertical plates. By sliding the two vertical plates relative to each other, the two vertical plates move the food packaging bag closer to the center line of the carriage, thereby adjusting the offset food packaging bag to the center position of the hot pressing, thus improving the hot pressing effect.

[0015] 2. This food packaging bag hot pressing device rotates the vertical plate, changing the horizontal state of the vertical plate to a vertical state. As a result, the spray range of the nozzles at the lower end of the vertical plate is greatly increased. Therefore, when the food packaging bag is severely tilted, the position of the food packaging bag can be adjusted by using both the vertical plate and the nozzles.

[0016] 3. This food packaging bag hot pressing device uses air to squeeze the push plate, causing one end of the push plate to slide out of the arc-shaped chamber. The push plate then squeezes the squeezing plate, causing it to rotate 180 degrees. The squeezing plate then drives a rubber block to press against the packaging bag. The rotating squeezing plate and the rubber block squeeze the sides of the food packaging bag, thereby eliminating air from the sides of the food packaging bag and reducing the occurrence of air bubbles during hot pressing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 This is a cross-sectional view of the carriage of the present invention.

[0019] Figure 3 This is a schematic diagram of the structure of the adjusting column and the vertical plate of the present invention.

[0020] Figure 4 This is a schematic diagram of the adjustment device of the present invention.

[0021] Figure 5 This is the front view of the entire invention.

[0022] Figure 6 This is the present invention. Figure 2 A partial structural diagram at point A.

[0023] In the diagram: 1. Support frame; 2. Electric push rod; 3. Slide; 4. Slider; 5. Adjusting column; 6. Air box; 8. Adjusting device; 9. Connector; 10. Return spring; 11. Pressing plate; 12. Semicircular arc; 13. First interface; 14. Second interface; 15. First short shaft; 16. First surface; 17. Second surface; 18. Arc-shaped chamber; 19. Push plate; 20. Venting groove; 21. Steel cable; 22. Connecting column; 23. Piston plate; 24. First transmission pipe; 25. Second transmission pipe; 81. Vertical plate; 82. Spray hole; 83. Spring; 84. Extrusion plate; 86. Second short shaft; 87. Torque spring; 88. Rubber block; 89. Support spring; 91. Guide pipe; 92. Cylinder; 93. Circular tube; 94. Ring; 95. Conical tube. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0025] Please see Figures 1-2 One type of food packaging bag hot pressing device includes a support frame 1 and an electric push rod 2 installed on the support frame 1. A slide 3 is installed at the lower end of the electric push rod 2. Slider 4 is slidably connected to both ends of the slide 3. A hot pressing plate 11 is installed at one end of the slide 4. An adjusting column 5 is slidably connected inside the slide 4. An adjusting device 8 is installed at the lower end of the adjusting column 5. The adjusting device 8 is used to adjust the position of the food bag. The adjusting device 8 includes a vertical plate 81 rotatably connected to the lower end of the adjusting column 5. The lower end of the vertical plate 81 is provided with a spray hole 82 for blowing up the food packaging bag. One end of the vertical plate 81 is rotatably connected to a squeezing plate 84 for squeezing the air bubbles inside the food packaging bag.

[0026] Existing hot stamping devices for food packaging bags cannot identify whether the food packaging bag is in the center of the hot stamping position. When the food packaging bag is not in the center of the hot stamping position, it will cause the hot stamping edge to shift after hot stamping, resulting in poor quality of the hot stamped food packaging bag. Secondly, because there is air inside the food packaging bag, when the hot stamping device is hot stamping the edge, the air inside the food packaging bag will generate air bubbles at the edge, resulting in poor hot stamping edge sealing effect. according to Figure 1 As shown, the food packaging bag is conveyed to the lower end of the carriage 3 via a conveyor belt. The carriage 3 is then pushed downwards by an electric push rod 2. The carriage 3 then moves the adjusting device 8 closer to the food packaging bag. Figure 2As shown, air is sprayed onto the conveyor belt through the nozzle 82, and the conveyor belt guides the air to the surroundings. This air blows the food packaging bag upwards. Then, the vertical plate 81 is rotated so that it abuts against the side of the food packaging bag. The two vertical plates 81 clamp the food packaging bag. By sliding the two vertical plates 81 relative to each other, the two vertical plates 81 move the food packaging bag closer to the center line of the carriage 3. This adjusts the offset food packaging bag to the center position of the heat pressing, thereby improving the heat pressing effect. It should be noted that various types of food packaging bags can be blown up by air, and the food packaging bags can be clamped and moved by the two vertical plates 81. Furthermore, a connecting spring is installed on the outer surface of the adjusting column 5. When the slide 3 approaches the food packaging bag, the conveyor belt arc squeezes the vertical plate 81 and the adjusting column 5 to slide upward. Then, when the two adjusting columns 5 slide relative to each other to the limit, the adjusting column 5 will also drive the heating plate 11 to slide to the lower end of the food packaging bag, thereby using the heating plate 11 to press against the food packaging bag to complete the heat pressing. Example 2

[0027] This embodiment is an improvement upon embodiment 1. For details, please refer to [link / reference]. Figures 1-3 A semicircular arc 12 is installed at the lower end of the adjusting column 5. One end of the semicircular arc 12 is provided with a first surface 16, and the other end of the semicircular arc 12 is provided with a second surface 17. The lower end of the adjusting column 5 is equipped with a first short shaft 15, and the upper end of the vertical plate 81 is sleeved on the outer surface of the first short shaft 15. A spring clip 83 is also installed at one end of the vertical plate 81, and the upper end of the spring clip 83 is connected to the lower end of the semicircular arc 12. The upper end of the vertical plate 81 is also provided with a second interface 14, and the lower end of the semi-circular arc 12 is provided with a first interface 13. The first interface 13 is used to transmit air to the second interface 14. The vertical plate 81 has a first cavity inside, and the first cavity, the second interface 14 and the spray hole 82 are connected.

[0028] according to Figure 3 As shown, the initial state of the vertical plate 81 is abutting against the first surface 16. At this time, the vertical plate 81 is perpendicular to the adjusting column 5. When the slide 3 slides down, the vertical plate 81 is rotated to change the horizontal state of the vertical plate 81 to the vertical state. Therefore, the spray range of the nozzle 82 at the lower end of the vertical plate 81 will be greatly increased. Thus, when the food packaging bag is seriously tilted, the position of the food packaging bag can be adjusted by using both the vertical plate 81 and the nozzle 82. It should be noted that the vertical state of the vertical plate 81 is such that one end of the vertical plate 81 abuts against the second surface 17; according to Figure 3As shown, air is transmitted from the first interface 13 to the second interface 14, the second interface 14 transmits air to the first cavity, and the first cavity transmits air to the nozzle 82, thereby realizing the spraying of air from the nozzle 82. It should be noted that when one end of the vertical plate 81 abuts against the second surface 17, its second interface 14 will move away from the semicircular arc 12, so that the first interface 13 and the second interface 14 are connected, thereby preventing the nozzle 82 from spraying air, thus avoiding the nozzle 82 from continuing to spray air and affecting the food packaging bag that has been adjusted to the correct position. A steel cable 21 is installed at one end of the vertical plate 81, and the upper end of the steel cable 21 is connected to the lower end of the support frame 1; A return spring 10 is installed at one end of the adjusting column 5, and the adjusting column 5 is connected to the slide 3 through the return spring 10. Example 3

[0029] This embodiment is an improvement upon embodiment 2. For details, please refer to [link / reference]. Figures 1-4 The lower end of the vertical plate 81 is equipped with a second short shaft 86, and one end of the extrusion plate 84 is sleeved on the outer surface of the second short shaft 86. The second short shaft 86 and the extrusion plate 84 are connected by a torque spring 87. An arc-shaped chamber 18 is also installed at one end of the vertical plate 81. A push plate 19 is slidably connected inside the arc-shaped chamber 18. The push plate 19 is used to squeeze the extrusion plate 84 to rotate. One end of the arc-shaped chamber 18 is also provided with a venting groove 20; A support spring 89 is installed at one end of the extrusion plate 84, and a rubber block 88 is installed at the other end of the support spring 89.

[0030] By transmitting air to the arc-shaped chamber 18, the air squeezes the push plate 19, causing one end of the push plate 19 to slide out of the arc-shaped chamber 18. The push plate 19 then squeezes the squeezing plate 84 to swing, causing the squeezing plate 84 to rotate 180 degrees. The squeezing plate 84 drives the rubber block 88 to abut against the packaging bag. In this way, the rotating squeezing plate 84 and the rubber block 88 squeeze the side of the food packaging bag, thereby eliminating the air on the side of the food packaging bag and reducing the occurrence of air bubbles caused by heat pressing. It should be noted that a rubber block 88 is installed at one end of the support spring 89. When the compressive force on the rubber block 88 is greater than the elastic force of the support spring 89, the support spring 89 will contract, thereby reducing the possibility of the rubber block 88 getting stuck. Example 4

[0031] This embodiment is an improvement upon embodiment 3. For details, please refer to [link / reference]. Figures 1-6 The vertical plate 81 has a second cavity inside, which is connected to the arc-shaped compartment 18; An air box 6 is installed at the upper end of the slide 3. A piston plate 23 is slidably connected inside the air box 6. A connecting column 22 is installed at the upper end of the piston plate 23. The upper end of the connecting column 22 is connected to the lower end of the support frame 1. The first transmission pipe 24 and the second transmission pipe 25 are respectively installed at both ends of the air box 6. A connector 9 is installed at one end of the first transmission pipe 24 and the second transmission pipe 25. The two ends of the adjusting column 5 are also provided with sockets, and the connector 9 is used to be inserted into the sockets. The connector 9 includes a guide tube 91 connected to the lower ends of the first transmission tube 24 and the second transmission tube 25. A cylindrical barrel 92 is installed at one end of the guide tube 91. A cylindrical tube 93 is slidably connected inside the cylindrical barrel 92. A circular ring 94 is also installed on the outer surface of the cylindrical tube 93. A conical tube 95 is installed at one end of the cylindrical tube 93. The conical tube 95 is used to insert into the socket.

[0032] When the slide 3 slides downwards, the piston plate 23 slides into the air box 6, thereby compressing the air inside the air box 6 to the first transmission pipe 24 and the second transmission pipe 25. The air is then transmitted to their respective connectors 9 via the first and second transmission pipes 24 and 25. Figure 6 As shown, air enters through the guide pipe 91, which transmits the air to the cylinder 92, the round pipe 93, the conical pipe 95 and the inlet, thus allowing the air to enter the first chamber. The air is then transmitted through the first chamber to the nozzle 82, causing the nozzle 82 to spray air. Furthermore, when the two adjusting columns 5 slide relative to each other near the center line of the slide 3, the conical tube 95 will slide out from the socket, thereby stopping the transmission of air to the first cavity. Then, when the adjusting column 5 approaches the connector 9 at the lower end of the second transmission tube 25, the conical tube 95 of the connector 9 at the lower end of the adjusting column 5 is inserted into the socket, thereby transmitting air to the second cavity, so that the second cavity transmits air to the arc-shaped chamber 18, so that the air in the arc-shaped chamber 18 can push the push plate 19 to slide. according to Figure 5 As shown, when the slide 3 slides downward, the steel cable 21 connected to the lower end of the support frame 1 will pull the vertical plate 81 to rotate and swing. Then, when one end of the vertical plate 81 touches the second surface 17, the steel cable 21 will pull the vertical plate 81 and the adjusting column 5 to slide to one side, thereby realizing the sliding of the two adjusting columns 5 towards the center line of the slide 3.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A hot stamping device for food packaging bags, comprising a support frame (1) and an electric push rod (2) mounted on the support frame (1), characterized in that: The lower end of the electric push rod (2) is equipped with a slide (3), and the two ends of the slide (3) are slidably connected to a slider (4). One end of the slider (4) is equipped with a pressing plate (11). The inside of the slider (4) is slidably connected to an adjusting column (5). The lower end of the adjusting column (5) is equipped with an adjusting device (8). The adjusting device (8) is used to adjust the position of the food bag. The adjustment device (8) includes a vertical plate (81) rotatably connected to the lower end of the adjustment column (5). The lower end of the vertical plate (81) is provided with a spray hole (82), which is used to blow up the food packaging bag. One end of the vertical plate (81) is rotatably connected to a squeezing plate (84), which is used to squeeze the air bubbles inside the food packaging bag.

2. The food packaging bag hot stamping device according to claim 1, characterized in that: The lower end of the adjusting column (5) is equipped with a semi-circular arc (12), one end of the semi-circular arc (12) is provided with a first surface (16), and the other end of the semi-circular arc (12) is provided with a second surface (17). The lower end of the adjusting column (5) is equipped with a first short shaft (15), and the upper end of the vertical plate (81) is sleeved on the outer surface of the first short shaft (15). One end of the vertical plate (81) is also equipped with a spring piece (83), the upper end of which is connected to the lower end of the semicircular arc (12).

3. The food packaging bag hot stamping device according to claim 2, characterized in that: The upper end of the vertical plate (81) is provided with a second interface (14), and the lower end of the semicircular arc (12) is provided with a first interface (13). The first interface (13) is used to transmit air to the second interface (14). The vertical plate (81) has a first cavity inside, and the first cavity, the second interface (14) and the spray hole (82) are connected.

4. The food packaging bag hot stamping device according to claim 3, characterized in that: The lower end of the vertical plate (81) is equipped with a second short shaft (86), and one end of the extrusion plate (84) is sleeved on the outer surface of the second short shaft (86). The second short shaft (86) and the extrusion plate (84) are connected by a torque spring (87). An arc-shaped chamber (18) is also installed at one end of the vertical plate (81). A push plate (19) is slidably connected inside the arc-shaped chamber (18). The push plate (19) is used to squeeze the extrusion plate (84) to rotate. One end of the arc-shaped chamber (18) is also provided with a venting groove (20).

5. The food packaging bag hot stamping device according to claim 4, characterized in that: A support spring (89) is installed at one end of the extrusion plate (84), and a rubber block (88) is installed at one end of the support spring (89).

6. The food packaging bag hot stamping device according to claim 4, characterized in that: The vertical plate (81) has a second cavity inside, which is connected to the arc-shaped compartment (18).

7. The food packaging bag hot stamping device according to claim 6, characterized in that: An air box (6) is installed at the upper end of the slide (3), and a piston plate (23) is slidably connected inside the air box (6). A connecting column (22) is installed at the upper end of the piston plate (23), and the upper end of the connecting column (22) is connected to the lower end of the support frame (1). The air box (6) is equipped with a first transmission pipe (24) and a second transmission pipe (25) at both ends. A connector (9) is installed at one end of the first transmission pipe (24) and the second transmission pipe (25). The adjusting column (5) is also provided with a socket at both ends. The connector (9) is used to insert into the socket.

8. The food packaging bag hot stamping device according to claim 7, characterized in that: The connector (9) includes a guide pipe (91) connected to the lower ends of the first transmission pipe (24) and the second transmission pipe (25). A cylindrical barrel (92) is installed at one end of the guide pipe (91). A cylindrical tube (93) is slidably connected inside the cylindrical barrel (92). A ring (94) is also installed on the outer surface of the cylindrical tube (93). A conical tube (95) is installed at one end of the cylindrical tube (93). The conical tube (95) is used to be inserted into the socket.

9. The food packaging bag hot stamping device according to claim 8, characterized in that: A steel cable (21) is installed at one end of the vertical plate (81), and the upper end of the steel cable (21) is connected to the lower end of the support frame (1); A return spring (10) is installed at one end of the adjusting column (5), and the adjusting column (5) is connected to the slide (3) through the return spring (10).

Images