A heat sealing mechanism of a box type continuous vacuum air conditioning packaging machine

Abstract

The utility model relates to the technical field of packing machine especially is a kind of heat sealing mechanism of box type continuous vacuum air conditioning packaging machine, and its heat sealing strip of heat sealer is kept warm by two heat preservation covers and heat preservation box, reduces heat loss waste, to reduce power consumption;Including mounting bracket and heat sealer;Still including heat preservation box, two heat preservation covers, two spring leaves and electrode end, mounting bracket sets two, and the left and right ends of heat preservation box are connected with two mounting brackets respectively, and the inside of heat preservation box is provided with heat preservation chamber, and the bottom of heat preservation box is provided with opening, and heat sealer is installed in the heat preservation chamber of heat preservation box and can be lifted, and the upper edge of two heat preservation covers is respectively hinged with the two sides of the lower end opening of heat preservation box, and one end of two spring leaves is respectively connected with two heat preservation covers, and the other end of two spring leaves is connected with heat preservation box, and the elasticity of two spring leaves makes two heat preservation covers fold and close the opening of heat preservation box, and electrode end is installed on heat sealer, and electrode end and heat sealing strip of heat sealer are electrically connected.

Description

Technical Field

[0001] This utility model relates to the technical field of packaging machines, and in particular to a heat sealing mechanism for a box-type continuous vacuum modified packaging machine. Background Technology

[0002] The box-type continuous vacuum modified atmosphere packaging machine evacuates the air inside the original packaging box and fills it with a mixed gas (nitrogen, oxygen, and carbon dioxide) in a certain proportion to effectively preserve and protect the packaged food. Existing Chinese utility model patent CN222646432U discloses a heat-sealing mechanism for this box-type modified atmosphere packaging machine. This hot air mechanism includes a main body and an auxiliary clamping mechanism, with the auxiliary clamping mechanism located on the upper left side above the main body. In operation, the heat-sealing mechanism of this box-type modified atmosphere packaging machine utilizes the main body. During use, the operation of a drive motor in a fixed groove on the upper part of the connecting plate drives the movable lead screw to rotate, causing the sliding block at its outer end to move to the right to adjust its position. Reversing the drive motor moves the sliding block to the left, and the mounting frame is fixed by a connecting rod. The operation of an electric push rod at the upper end of the mounting frame drives a push rod to move up and down. When using the heat sealer, it is first preheated before placing the bag to be sealed under the heat sealer. The heat sealer moves downwards to seal the bag. The position of the heat sealer can be adjusted according to different needs, making it more convenient to use.

[0003] The heating sealer of the aforementioned heat sealing mechanism is directly exposed to the air. The temperature of the heat sealer rises during the sealing process, but after sealing, the heat sealer dissipates heat into the air, causing the temperature to drop, resulting in heat waste and increased power consumption. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a heat sealing mechanism for a box-type continuous vacuum modified packaging machine that uses two heat-insulating covers and a heat-insulating box to keep the heat sealing strip of the heat sealer warm, thereby reducing heat loss and waste, and thus reducing power consumption.

[0005] This utility model discloses a heat-sealing mechanism for a box-type continuous vacuum modified packaging machine, comprising a mounting frame and a heat sealer. The mounting frame is mounted on the frame of the packaging machine. It also includes an insulated box, two insulated covers, two spring plates, and an electrode. Two mounting frames are provided. A heat-sealing strip is provided at the bottom of the heat sealer. The left and right ends of the insulated box are respectively connected to the two mounting frames. The insulated box has an insulated chamber inside, and an opening at the bottom. The heat sealer is vertically mounted in the insulated chamber of the insulated box. The upper edges of the two insulated covers are hinged to the two sides of the lower opening of the insulated box. One end of each of the two spring plates is connected to the two insulated covers, and the other end is connected to the insulated box. The elastic force of the two spring plates causes the two insulated covers to close and seal the opening of the insulated box. The electrode is mounted on the heat sealer and is connected to the heat sealer. The heat sealer's heat sealing strip is electrically connected. During operation, two mounting brackets are installed on the packaging machine's frame, and the electrodes are electrically connected to the power control system, heating the heat sealer's heat sealing strip. At this time, the heat sealer is located in the insulated shell formed by the insulated box and two insulated covers. When the packaging box on the packaging machine needs to be sealed, the heat sealer's heat sealing strip reaches the sealing temperature, and the heat sealer descends, causing the lower end of the heat sealer to push the two insulated covers to the sides and press them against the sealing opening of the packaging box to complete the heat sealing operation. The heat sealer rises, causing it to retract into the insulated chamber of the insulated box. The elasticity of the two spring plates latches the two insulated covers onto the opening of the insulated box, thereby sealing the opening of the insulated box and insulating the heat sealer's heat sealing strip, reducing heat loss and waste, and thus reducing power consumption.

[0006] Preferably, it also includes a rack, a motor, a shaft, and a gear. The rack is vertically mounted on the heat sealer, the motor is mounted on the mounting bracket via a support, the shaft is rotatably mounted on the support of the mounting bracket, and the gear is concentrically mounted on the shaft, meshing with the rack. The motor drives the shaft to rotate, the shaft drives the gear to rotate, and the gear meshes with the rack to drive the heat sealer to rise and fall in the insulation box, thereby achieving stable driving of the heat sealer.

[0007] Preferably, it also includes a swing arm and a spring. One end of the swing arm is connected to the shaft, the upper end of the spring is connected to the swing arm, and the lower end of the spring is connected to the mounting bracket. The swing arm can be set to face the back of the rack or the tooth surface of the rack. When the swing arm faces the back of the rack, the spring elastically supports the swing arm, so that the spring force passes through the swing arm to support the shaft and gear, causing the gear to mesh with the rack and drive upward, thereby offsetting part of the weight of the heat sealer, making the force on the motor more balanced, and also making the heat sealer rise and reset more quickly. When the swing arm faces the tooth surface of the rack, the spring force pulls the swing arm downward, so that the spring force passes through the swing arm to drive the shaft and gear, causing the gear to mesh with the rack and drive upward, thereby offsetting part of the weight of the heat sealer, making the force on the motor more balanced, and also making the heat sealer rise and reset more quickly.

[0008] Preferably, it also includes a temperature sensor, which is installed on the insulation box and is used to detect the temperature inside the insulation box; the temperature inside the insulation box is monitored in real time by installing the temperature sensor.

[0009] Preferably, the mounting frame includes a column, an upper frame, elongated holes, and bolts. The bottom of the column is provided with an ear plate, which is installed on the frame of the packaging machine by bolts. The upper frame is connected to the side wall of the insulated box. The upper frame is provided with vertically arranged elongated holes, and bolts are threaded through the elongated holes and screwed onto the column. The upper frame is connected to the column through the elongated holes and bolts. The height of the upper frame can be adjusted by providing elongated holes, thereby precisely adjusting the height of the insulated box and the heat sealer.

[0010] Preferably, it also includes a rotating rod, a lever, and a connector. One end of the rotating rod is rotatably mounted on the column, the inner end of the lever is mounted on the rotating rod, and the outer end of the lever is in frictional contact with the bottom of the upper frame. The connector is mounted on the other end of the rotating rod. When the height of the upper frame needs to be adjusted, loosen the bolts and use a wrench or other tools to rotate the connector. The connector drives the rotating rod and the lever to rotate, causing the outer end of the lever to press and push the upper frame to rise or fall. After the height of the upper frame is adjusted, tighten the bolts to lock the upper frame, making adjustment more convenient.

[0011] Preferably, it also includes a ratchet assembly and a shift lever. The ratchet assembly is mounted on the column, and one end of the shift lever is connected to the inner shaft of the ratchet assembly for transmission. The shift lever is provided on the ratchet assembly and is used to adjust the rotation direction of the inner shaft of the ratchet assembly. Turning the shift lever to one side causes the inner shaft of the ratchet assembly to rotate clockwise in one direction, and turning the shift lever to the other side causes the inner shaft of the ratchet assembly to rotate counterclockwise in one direction. In this way, when adjusting the angle of the lever by twisting the connector, the angle of the lever will not drop after the connector is released, thus improving the operability of the lever adjustment.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: When it is necessary to seal the packaging box on the packaging machine, the heat sealer reaches the sealing temperature, the heat sealer descends, and the lower end of the heat sealer pushes the two heat insulation covers to both sides and presses them on the sealing of the packaging box to complete the heat sealing operation. The heat sealer rises, so that the heat sealer is retracted into the heat insulation chamber of the heat insulation box. The elasticity of the two spring sheets latches the two heat insulation covers onto the opening of the heat insulation box, thereby sealing the opening of the heat insulation box with the two heat insulation covers, thus keeping the heat sealer's heat sealer insulated, reducing heat loss and waste, and thus reducing power consumption. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a side sectional view of the present invention; Figure 3 This is a schematic diagram of the structure of the present invention in the state of heat sealing; Figure 4 yes Figure 3 A magnified schematic diagram of the partial structure at point A in the middle; Figure 5 This is a structural diagram showing the disassembled state of components such as the heat sealer, insulation box, insulation cover, spring sheet, electrode, and rack. Figure 6 It is a structural diagram showing the disassembled state of components such as columns, upper frames, bolts, rotating rods, levers, connectors, ratchet assemblies, and conversion rods.

[0014] The following are labeled in the attached diagram: 1. Mounting bracket; 2. Heat sealer; 3. Insulation box; 4. Insulation cover; 5. Spring plate; 6. Electrode end; 7. Rack; 8. Motor; 9. Shaft; 10. Gear; 11. Swing arm; 12. Spring; 13. Temperature sensor; 14. Column; 15. Upper frame; 16. Long hole; 17. Bolt; 18. Rotating rod; 19. Toggle lever; 20. Connector; 21. Ratchet assembly; 22. Converter lever. Detailed Implementation

[0015] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example 1

[0016] like Figures 1 to 5As shown, a heat-sealing mechanism for a box-type continuous vacuum modified packaging machine includes a mounting frame 1 and a heat sealer 2. The mounting frame 1 is mounted on the frame of the packaging machine. It also includes an insulated box 3, two insulated covers 4, two spring plates 5, and an electrode 6. Two mounting frames 1 are provided. A heat-sealing strip is provided at the bottom of the heat sealer 2. The left and right ends of the insulated box 3 are respectively connected to the two mounting frames 1. The interior of the insulated box 3 has an insulated chamber, and the bottom of the insulated box 3 has an opening. The heat sealer 2 is vertically and flexibly installed in the insulated chamber of the insulated box 3. The upper edges of the two insulated covers 4 are respectively hinged to the two sides of the lower opening of the insulated box 3. One end of each of the two spring plates 5 is connected to the two insulated covers 4, and the other end of each spring plate 5 is connected to the insulated box 3. The elastic force of the two spring plates 5 causes the two covers 4 to open and close. The insulation cover 4 closes to seal the opening of the insulation box 3. The electrode 6 is installed on the heat sealer 2 and is electrically connected to the heat sealing strip of the heat sealer 2. The insulation box 3 also includes a rack 7, a motor 8, a shaft 9, and a gear 10. The rack 7 is vertically installed on the heat sealer 2. The motor 8 is installed on the mounting bracket 1 via a bracket. The shaft 9 is rotatably installed on the bracket of the mounting bracket 1. The gear 10 is concentrically installed on the shaft 9 and meshes with the rack 7. The insulation box 3 also includes a swing arm 11 and a spring 12. One end of the swing arm 11 is connected to the shaft 9. The upper end of the spring 12 is connected to the swing arm 11, and the lower end of the spring 12 is connected to the mounting bracket 1. The insulation box 3 also includes a temperature sensor 13, which is installed on the insulation box 3 and is used to detect the temperature inside the insulation box 3.

[0017] The swing arm 11 can be positioned facing either the back of the rack 7 or the tooth surface of the rack 7. When the swing arm 11 faces the back of the rack 7, the spring 12 elastically supports the swing arm 11, allowing the spring force of the spring 12 to pass through the swing arm 11 supporting the shaft 9 and the gear 10, causing the gear 10 to mesh with the rack 7 and drive it upward. This offsets part of the weight of the heat sealer 2, making the force on the motor 8 more balanced and allowing the heat sealer 2 to rise and reset more quickly. When the swing arm 11 faces the tooth surface of the rack 7, the spring force of the spring 12 pulls the swing arm 11 downward, allowing the spring force of the spring 12 to pass through the swing arm 11 driving the shaft 9 and the gear 10, causing the gear 10 to mesh with the rack 7 and drive it upward. This offsets part of the weight of the heat sealer 2, making the force on the motor 8 more balanced and allowing the heat sealer 2 to rise and reset more quickly.

[0018] During operation, two mounting brackets 1 are installed on the frame of the packaging machine. The electrode 6 is electrically connected to the power control system, which heats the heat sealing strip of the heat sealer 2. At this time, the heat sealer 2 is located in the insulation shell formed by the insulation box 3 and two insulation covers 4. The temperature inside the insulation box 3 is monitored in real time by the temperature sensor 13. When it is necessary to seal the packaging box on the packaging machine, the heat sealing strip of the heat sealer 2 reaches the sealing temperature. The motor 8 drives the shaft 9 to rotate, and the shaft 9 drives the gear 10 to rotate. The meshing rack 7 drives the heat sealer 2 to descend within the insulated box 3, causing the lower end of the heat sealer 2 to push the two insulated covers 4 to the sides and press them against the opening of the packaging box to complete the heat sealing operation. The heat sealer 2 then rises, retracting into the insulated chamber of the insulated box 3. The elasticity of the two spring plates 5 engages the two insulated covers 4 with the opening of the insulated box 3, thereby sealing the opening of the insulated box 3 and insulating the heat seal strip of the heat sealer 2, reducing heat loss and waste, and thus reducing power consumption. Example 2

[0019] like Figures 1 to 6 As shown, based on Embodiment 1, the mounting frame 1 includes a column 14, an upper frame 15, an elongated hole 16, and bolts 17. The bottom of the column 14 is provided with an ear plate, which is bolted to the frame of the packaging machine. The upper frame 15 is connected to the side wall of the insulated box 3. The upper frame 15 has a vertically arranged elongated hole 16, through which bolts 17 are threaded and fastened to the column 14. It also includes a rotating rod 18, a lever 19, and a connector 20. One end of the rotating rod 18 is rotatably mounted on the column 14. The inner end of the lever 19 is mounted on the rotating rod 18, and the outer end of the lever 19 is in frictional contact with the bottom of the upper frame 15. The other end of the rotating rod 18 is fitted with a connector 20. Furthermore, it includes a ratchet assembly 21 and a conversion lever 22. The ratchet assembly 21 is mounted on the column 14. One end of the rotating rod 18 is connected to the inner shaft of the ratchet assembly 21. The ratchet assembly 21 is fitted with a conversion lever 22, which is used to adjust the rotation direction of the inner shaft of the ratchet assembly 21.

[0020] The upper frame 15 is connected to the column 14 through the elongated hole 16 and bolt 17. When the height of the upper frame 15 needs to be adjusted, loosen the bolt 17 and use a wrench or other tools to rotate the connector 20. The connector 20 drives the rotating rod 18 and the lever 19 to rotate, so that the outer end of the lever 19 presses and pushes the upper frame 15 up and down. Turning the conversion lever 22 to one side makes the inner shaft of the ratchet assembly 21 rotate clockwise in one direction. Turning the conversion lever 22 to the other side makes the inner shaft of the ratchet assembly 21 rotate counterclockwise in one direction. In this way, when adjusting the angle of the lever 19 by twisting the connector 20, the angle of the lever 19 will not drop after the connector 20 is loosened, improving the operability of the lever 19 adjustment, thereby accurately adjusting the height of the insulation box 3 and the heat sealer 2. After the height of the upper frame 15 is adjusted, tighten the bolt 17 to lock the upper frame 15.

[0021] like Figures 1 to 6 As shown, the heat sealing mechanism of this utility model is a box-type continuous vacuum modified packaging machine. During operation, first loosen bolt 17, and use a wrench or other tools to rotate connector 20. Connector 20 drives rotating rod 18 and lever 19 to rotate, causing the outer end of lever 19 to press and push the upper frame 15 up and down. After the height of the upper frame 15 is adjusted, tighten bolt 17 to lock the upper frame 15. Then, electrode 6 is electrically connected to the power control system, causing the heat sealing strip of heat sealer 2 to be heated. At this time, heat sealer 2 is located in the insulation shell formed by insulation box 3 and two insulation covers 4. Temperature sensor 13 monitors the temperature inside insulation box 3 in real time. Then, when it is necessary to heat the packaging on the packaging machine... When the box is sealed, the heat sealer 2 reaches the sealing temperature. The motor 8 drives the shaft 9 to rotate, and the shaft 9 drives the gear 10 to rotate. The gear 10 meshes with the rack 7 to drive the heat sealer 2 to descend in the insulated box 3. This causes the lower end of the heat sealer 2 to push the two insulated covers 4 to the sides and press them against the opening of the packaging box to complete the heat sealing operation. Finally, the heat sealer 2 rises and retracts into the insulated chamber of the insulated box 3. The elasticity of the two spring plates 5 latches the two insulated covers 4 onto the opening of the insulated box 3, thereby sealing the opening of the insulated box 3 and keeping the heat sealer 2 insulated, reducing heat loss and waste, and thus reducing power consumption.

[0022] The main functions achieved by this utility model are: 1. The heat seal strip of the heat sealer 2 is insulated by two heat-insulating covers 4 and heat-insulating boxes 3, which reduces heat loss and waste, thereby reducing power consumption; 2. The elastic force of spring 12 drives shaft 9 and gear 10 through swing arm 11, causing gear 10 to mesh with rack 7 and drive upward, thereby offsetting part of the weight of heat sealer 2, making the force on motor 8 more balanced, and making heat sealer 2 rise and reset more quickly. 3. The heights of the heat sealer 2 and the insulation box 3 can be adjusted flexibly.

[0023] The heat sealing mechanism of this utility model for a box-type continuous vacuum modified air packaging machine uses common mechanical methods for installation, connection, or setting. Any method that achieves the desired beneficial effect can be implemented. The mounting frame 1, heat sealer 2, insulation cover 4, spring sheet 5, insulation box 3, electrode 6, rack 7, motor 8, shaft 9, gear 10, spring 12, temperature sensor 13, bolt 17, rotating rod 18, lever 19, connector 20, ratchet assembly 21, and conversion rod 22 of the heat sealing mechanism of this utility model are commercially available. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0024] All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] The above description is only a preferred embodiment of the present utility model. 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 utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A heat-sealing mechanism for a box-type continuous vacuum modified packaging machine, comprising a mounting frame (1) and a heat sealer (2), wherein the mounting frame (1) is mounted on the frame of the packaging machine; characterized in that, It also includes a heat preservation box (3), two heat preservation covers (4), two spring sheets (5) and an electric electrode (6). Two mounting brackets (1) are provided. A heat sealing strip is provided at the bottom of the heat sealer (2). The left and right ends of the heat preservation box (3) are connected to the two mounting brackets (1) respectively. A heat preservation chamber is provided inside the heat preservation box (3). An opening is provided at the bottom of the heat preservation box (3). The heat sealer (2) is installed in the heat preservation chamber of the heat preservation box (3) in a height-adjustable manner. The upper edges of the two heat preservation covers (4) are respectively hinged to the two sides of the lower opening of the heat preservation box (3). One end of the two spring sheets (5) is connected to the two heat preservation covers (4) respectively. The other end of the two spring sheets (5) is connected to the heat preservation box (3). The elasticity of the two spring sheets (5) causes the two heat preservation covers (4) to close and seal the opening of the heat preservation box (3). The electric electrode (6) is installed on the heat sealer (2). The electric electrode (6) is electrically connected to the heat sealing strip of the heat sealer (2).

2. The heat sealing mechanism of a box-type continuous vacuum modified packaging machine as described in claim 1, characterized in that, It also includes a rack (7), a motor (8), a shaft (9) and a gear (10). The rack (7) is vertically mounted on the heat sealer (2). The motor (8) is mounted on the mounting bracket (1) via a bracket. The shaft (9) is rotatably mounted on the bracket of the mounting bracket (1). The gear (10) is concentrically mounted on the shaft (9) and meshes with the rack (7).

3. The heat sealing mechanism of a box-type continuous vacuum modified packaging machine as described in claim 2, characterized in that, It also includes a swing arm (11) and a spring (12). One end of the swing arm (11) is connected to the shaft (9), the upper end of the spring (12) is connected to the swing arm (11), and the lower end of the spring (12) is connected to the mounting bracket (1).

4. The heat sealing mechanism of a box-type continuous vacuum modified packaging machine as described in claim 1, characterized in that, It also includes a temperature sensor (13), which is installed on the insulation box (3) and is used to detect the temperature inside the insulation box (3).

5. The heat sealing mechanism of a box-type continuous vacuum modified packaging machine as described in claim 1, characterized in that, The mounting frame (1) includes a column (14), an upper frame (15), an elongated hole (16), and a bolt (17). The bottom of the column (14) is provided with an ear plate, which is installed on the frame of the packaging machine by bolts. The upper frame (15) is connected to the side wall of the heat preservation box (3). The upper frame (15) is provided with a vertically arranged elongated hole (16), and the bolt (17) passes through the elongated hole (16) and is screwed and fastened to the column (14).

6. The heat sealing mechanism of a box-type continuous vacuum modified packaging machine as described in claim 5, characterized in that, It also includes a rotating rod (18), a lever (19) and a connector (20). One end of the rotating rod (18) is rotatably mounted on the column (14), the inner end of the lever (19) is mounted on the rotating rod (18), the outer end of the lever (19) is in frictional contact with the bottom of the upper frame (15), and the connector (20) is mounted on the other end of the rotating rod (18).

7. The heat sealing mechanism of a box-type continuous vacuum modified packaging machine as described in claim 6, characterized in that, It also includes a ratchet assembly (21) and a conversion lever (22). The ratchet assembly (21) is mounted on the column (14). One end of the rotating lever (18) is connected to the inner shaft of the ratchet assembly (21) for transmission. The conversion lever (22) is provided on the ratchet assembly (21) and is used to adjust the rotation direction of the inner shaft of the ratchet assembly (21).

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