A heat sealing device

Abstract

The application discloses a heat sealing device, relates to the field of heat sealing, and comprises a base plate, a rack, a lifting plate, a top heat sealing component, a bottom heat sealing component, a leveling assembly and a flattening assembly. By rotating a bidirectional threaded rod, an inner threaded block moves on the outer surface of the bidirectional threaded rod. In the moving process of the inner threaded block, the rotating rod is driven to rotate, and through the rotation of the rotating rod, the two moving blocks are gradually moved closer to the bottom heat sealing component. The part on the top of the moving block on the side close to the rack is higher than the bottom heat sealing component, and the part is used for limiting the aluminum foil bag, so that the aluminum foil bag is prevented from being inclined to affect the heat sealing effect, manual leveling is not needed, and use is facilitated. The output end of the air cylinder is used for controlling the descending of the top heat sealing component, the top heat sealing component drives the descending of the flattening assembly, the descending of the rotating plate drives the bottom flattening roller into contact with the aluminum foil bag on the upper surface of the supporting plate, so that the aluminum foil bag is flattened through the outward extension of the rotating plate, and the gap reserved in the unsealed aluminum foil bag is prevented from affecting the heat sealing effect.

Description

Technical Field

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

[0002] Aluminum foil bags are a common packaging material composed of multiple layers of different materials. The aluminum foil layer has good barrier properties, which can effectively block light, oxygen, water vapor, etc., protecting the contents of the bag from the influence of the external environment. When using existing aluminum foil bags, they are usually sealed by heat sealing to protect the products inside the aluminum foil bag and prevent them from oxidizing and deteriorating.

[0003] A heat-sealing device is used when heat-sealing aluminum foil bags. The bag opening is placed inside the heat-sealing device, and a heating system heats the bag while a pressure system applies pressure. This melts the heat-sealing layer of the aluminum foil bag. Under pressure, the molten heat-sealing layer fuses with another layer of material to form a seal.

[0004] Existing heat sealing devices require workers to manually adjust the heat sealing position of the aluminum foil bag during heat sealing, trying to keep the seal line of the aluminum foil bag flush with the bag opening to ensure a good seal. However, existing heat sealing devices lack components for aligning the aluminum foil bag, requiring manual leveling, which is inconvenient to use. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the problems existing in the prior art, this utility model provides a heat sealing device.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solution: a heat sealing device, including a substrate, a frame is provided on the upper surface of the substrate, a lifting plate is slidably provided on the outer surface of the frame, a top heat sealing component is provided below the lifting plate, a bottom heat sealing component is provided above the substrate, a leveling component is provided on the upper surface of the substrate, and a leveling component is provided on both sides of the top heat sealing component.

[0009] The leveling assembly includes a bidirectional threaded rod movably mounted on the upper surface of a substrate via a bearing seat. The outer surface of the bidirectional threaded rod is threaded with two internal threaded blocks. Both sides of the two internal threaded blocks are hinged with a rotating rod via a hinge seat. The end of the rotating rod away from the internal threaded blocks is hinged with a moving block via a hinge seat. A support plate is provided on the side of the moving block near the bottom heat-sealing component.

[0010] The paving assembly includes a U-shaped fixing frame fixedly installed on the side of the top heat-sealing assembly. A rotating plate is movably connected inside the U-shaped fixing frame via a pin. Connecting blocks are fixedly installed on both sides of the bottom end of the rotating plate. A paving roller is movably installed between the two connecting blocks via a rotating shaft. A torsion spring is provided at the connection between the rotating plate and the U-shaped fixing frame.

[0011] In a preferred embodiment of the heat sealing device of this utility model, a cylinder is fixedly installed on the upper surface of the lifting plate, and the output end of the cylinder passes through the interior of the lifting plate and is fixedly connected to the upper surface of the top heat sealing component.

[0012] In a preferred embodiment of the heat sealing device of this utility model, the bottom heat sealing component is fixedly mounted on the upper surface of the substrate by a support frame, and the bidirectional threaded rod passes through the interior of the support frame.

[0013] In a preferred embodiment of the heat sealing device of this utility model, each of the two movable blocks has a limiting groove that cooperates with the support plate. The top of the movable block near the frame is higher than the upper surface of the bottom heat sealing component. The bottom of the movable block is provided with a limiting protrusion, and the upper surface of the substrate is provided with a groove that cooperates with the limiting protrusion.

[0014] In a preferred embodiment of the heat sealing device of this utility model, an L-shaped abutment block is fixedly connected to the side of the lower surface of the support plate away from the moving block. One end of the L-shaped abutment block abuts against the side of the bottom heat sealing component. A compression spring is provided between the L-shaped abutment block and the moving block. Both the outer surfaces of the L-shaped abutment block and the moving block are provided with blind holes for installing the compression spring. A limiting insert for limiting the compression spring is provided inside the blind hole.

[0015] In a preferred embodiment of the heat sealing device of this utility model, a limit block is fixedly installed at the bottom of the U-shaped fixing frame, and the limit block has an inclined surface on the side near the rotating plate.

[0016] (III) Beneficial Effects

[0017] This invention provides a heat sealing device. It has the following advantages:

[0018] 1. By rotating the bidirectional threaded rod, the internal threaded block moves on the outer surface of the bidirectional threaded rod. During the movement of the internal threaded block, the rotating rod is driven to rotate. Through the rotation of the rotating rod, the two moving blocks gradually move closer to the bottom heat sealing component. The part of the moving block on the side closer to the frame that is higher than the bottom heat sealing component limits the aluminum foil bag, preventing the aluminum foil bag from being crooked and affecting the heat sealing effect. No manual leveling is required, making it convenient to use.

[0019] 2. The top heat-sealing component is lowered by controlling the output end of the cylinder. The top heat-sealing component drives the leveling component to lower. After the rotating plate lowers, it drives the bottom leveling roller to contact the aluminum foil bag on the upper surface of the support plate. Thus, the aluminum foil bag is leveled by the outward expansion of the rotating plate, avoiding the gaps left inside the unsealed aluminum foil bag from affecting the heat-sealing effect. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0022] Figure 2 This is an exploded structural diagram of the leveling component of this utility model.

[0023] Figure 3 This is an exploded structural diagram of the support plate of this utility model.

[0024] Figure 4 This is a structural schematic diagram of the paving component of this utility model.

[0025] Figure 5 This is an exploded structural diagram of the limiting block of this utility model.

[0026] In the diagram, 1. Base plate; 2. Frame; 3. Lifting plate; 4. Cylinder; 5. Bottom heat sealing component; 6. Leveling assembly; 601. Bidirectional threaded rod; 602. Internal threaded block; 603. Rotating rod; 604. Moving block; 605. Support plate; 606. L-shaped abutment block; 607. Compression spring; 608. Limiting block; 7. Leveling assembly; 701. U-shaped fixing frame; 702. Rotating plate; 703. Leveling roller; 704. Torsion spring; 705. Limiting stop; 706. Connecting block; 8. Top heat sealing component. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0028] Example 1

[0029] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4This is the first embodiment of the present utility model. This embodiment provides a heat sealing device, including a substrate 1, a frame 2 is provided on the upper surface of the substrate 1, a lifting plate 3 is slidably provided on the outer surface of the frame 2, a top heat sealing component 8 is provided below the lifting plate 3, a bottom heat sealing component 5 is provided above the substrate 1, a leveling component 6 is provided on the upper surface of the substrate 1, and a flattening component 7 is provided on both sides of the top heat sealing component 8.

[0030] The leveling assembly 6 includes a bidirectional threaded rod 601 movably mounted on the upper surface of the substrate 1 via a bearing seat. The outer surface of the bidirectional threaded rod 601 is threaded with two internal threaded blocks 602. Both sides of the two internal threaded blocks 602 are hinged with rotating rods 603 via hinge seats. The end of the rotating rod 603 away from the internal threaded blocks 602 is hinged with a moving block 604 via a hinge seat. A support plate 605 is provided on the side of the moving block 604 near the bottom heat-sealing component 5.

[0031] Specifically, a cylinder 4 is fixedly installed on the upper surface of the lifting plate 3, and the output end of the cylinder 4 passes through the interior of the lifting plate 3 and is fixedly connected to the upper surface of the top heat-sealing component 8.

[0032] Specifically, the bottom heat-sealing component 5 is fixedly mounted on the upper surface of the substrate 1 by a support frame, and the bidirectional threaded rod 601 passes through the interior of the support frame, so that the support frame and the bidirectional threaded rod 601 do not affect each other.

[0033] Specifically, both movable blocks 604 have limiting grooves inside that cooperate with the support plate 605. The top of the movable block 604 on the side closer to the frame 2 is higher than the upper surface of the bottom heat sealing component 5. The bottom of the movable block 604 is provided with a limiting protrusion. The upper surface of the base plate 1 is provided with a groove that cooperates with the limiting protrusion. The limiting grooves ensure that the support plate 605 remains stable. The cooperation between the limiting protrusion and the groove prevents the movable block 604 from tilting during movement. The top of the movable block 604 on the side closer to the frame 2 is higher than the upper surface of the bottom heat sealing component 5, which facilitates the abutment and limiting of the end of the aluminum foil bag near the frame 2.

[0034] Specifically, an L-shaped abutment block 606 is fixedly connected to the side of the lower surface of the support plate 605 away from the moving block 604. One end of the L-shaped abutment block 606 abuts against the side of the bottom heat-sealing component 5. A compression spring 607 is provided between the L-shaped abutment block 606 and the moving block 604. Both the outer surfaces of the L-shaped abutment block 606 and the moving block 604 are provided with blind holes for installing the compression spring 607. A limiting insert 608 for limiting the compression spring 607 is provided inside the blind hole. By setting the L-shaped abutment block 606, the support plate 605 is prevented from directly contacting the part of the upper surface of the bottom heat-sealing component 5 that is used for heating. By abutting the side of the bottom of the bottom heat-sealing component 5 with the L-shaped abutment block 606, and by setting the compression spring 607 and the limiting insert 608, the L-shaped abutment block 606 and the support plate 605 can always maintain contact with the side of the bottom heat-sealing component 5.

[0035] Furthermore, by rotating the bidirectional threaded rod 601, the internal threaded block 602 moves on the outer surface of the bidirectional threaded rod 601. During the movement of the internal threaded block 602, the rotating rod 603 is driven to rotate. Through the rotation of the rotating rod 603, the two moving blocks 604 are driven to gradually move closer to the bottom heat-sealing component 5. The aluminum foil bag is limited by the part of the moving block 604 on the side near the frame 2 that is higher than the bottom heat-sealing component 5. The frame 2 is equipped with a threaded rod for controlling the lifting plate 3. The connection relationship, working principle and operation sequence between the top heat-sealing component 8, the bottom heat-sealing component 5 and the frame 2 and other components are existing technologies and are common knowledge known to those skilled in the art. They will not be described in detail here.

[0036] Example 2

[0037] Reference Figure 1 , Figure 4 and Figure 5 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment. The paving component 7 includes a U-shaped fixing frame 701 fixedly installed on the side of the top heat-sealing component. A rotating plate 702 is movably connected inside the U-shaped fixing frame 701 through a pin. Connecting blocks 706 are fixedly installed on both sides of the bottom end of the rotating plate 702. A paving roller 703 is movably installed between the two connecting blocks 706 through a rotating shaft. A torsion spring 704 is provided at the connection between the rotating plate 702 and the U-shaped fixing frame 701.

[0038] Specifically, a limit block 705 is fixedly installed at the bottom of the U-shaped fixed frame 701. The limit block 705 has an inclined surface on the side near the rotating plate 702. The inclined surface on the outer surface of the limit block 705 prevents the rotating plate 702 from retracting directly under the action of the torsion spring 704, thus preventing the rotating plate 702 from contacting the side of the top heat-sealing component 8.

[0039] Furthermore, the top heat-sealing component 8 is lowered by controlling the output end of the cylinder 4. The top heat-sealing component 8 drives the leveling component 7 to lower. After the rotating plate 702 lowers, it drives the bottom leveling roller 703 to contact the aluminum foil bag on the upper surface of the support plate 605. Thus, the aluminum foil bag is leveled by the outward expansion of the rotating plate 702, avoiding the gaps left inside the unsealed aluminum foil bag from affecting the heat-sealing effect. When the leveling roller 703 at the bottom of the rotating plate 702 expands outward as the top heat-sealing component 8 lowers, the outward expansion distance of the leveling roller 703 is sufficient to level the heat-sealed part of the aluminum foil bag, and the leveling roller 703 will not come into contact with the outer surface of the adjacent moving block 604.

[0040] Working principle: When heat-sealing aluminum foil bags, the position of the moving block 604 is adjusted according to the size of the aluminum foil bag to be heat-sealed and the heat-sealing part. By rotating the bidirectional threaded rod 601, the inner threaded block 602 moves on the outer surface of the bidirectional threaded rod 601. During the movement of the inner threaded block 602, the rotating rod 603 is driven to rotate. Through the rotation of the rotating rod 603, the two moving blocks 604 are driven to gradually move closer to the bottom heat-sealing part 5. The aluminum foil bag is limited by the part of the moving block 604 on the side near the frame 2 that is higher than the bottom heat-sealing part 5. When heat-sealing, the aluminum foil bag is placed on the support plate 605, and the end of the aluminum foil bag near the frame 2 is pushed to meet the outer surface of the moving block 604 on the side near the frame 2. The surface abuts against the aluminum foil bag to level it, preventing the foil bag from tilting and causing the seal line to become crooked. Then, the height of the lifting plate 3 is adjusted. After adjustment, the cylinder 4 is activated, and the output end of the cylinder 4 controls the top heat sealing component 8 to descend. As the top heat sealing component 8 descends, the leveling component 7 also descends. After the rotating plate 702 descends, it causes the bottom leveling roller 703 to contact the aluminum foil bag on the upper surface of the support plate 605. This causes the aluminum foil bag to be leveled by the outward expansion of the rotating plate 702, preventing the gaps left inside the unsealed aluminum foil bag from affecting the heat sealing effect. Then, through the cooperation of the top heat sealing component 8 and the bottom heat sealing component 5 and the pressure applied by the cylinder 4, the aluminum foil bag is heat sealed, and the heat sealing process of the aluminum foil bag is finally completed.

[0041] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A heat sealing apparatus, comprising a substrate, a frame disposed on the upper surface of the substrate, a lifting plate slidably disposed on the outer surface of the frame, a top heat sealing component disposed below the lifting plate, and a bottom heat sealing component disposed above the substrate, characterized in that: A leveling assembly is provided on the upper surface of the substrate, and a leveling assembly is provided on both sides of the top heat-sealing component. The leveling assembly includes a bidirectional threaded rod movably mounted on the upper surface of the substrate via a bearing seat. The outer surface of the bidirectional threaded rod is threaded with two internal threaded blocks. Both sides of the two internal threaded blocks are hinged with rotating rods via hinge seats. The end of the rotating rod away from the internal threaded blocks is hinged with a moving block via a hinge seat. A support plate is provided on the side of the moving block near the bottom heat-sealing component. The paving assembly includes a U-shaped fixing frame fixedly installed on the side of the top heat-sealing assembly. A rotating plate is movably connected inside the U-shaped fixing frame via a pin. Connecting blocks are fixedly installed on both sides of the bottom end of the rotating plate. A paving roller is movably installed between the two connecting blocks via a rotating shaft. A torsion spring is provided at the connection between the rotating plate and the U-shaped fixing frame.

2. The heat sealing device according to claim 1, characterized in that: A cylinder is fixedly installed on the upper surface of the lifting plate, and the output end of the cylinder passes through the interior of the lifting plate and is fixedly connected to the upper surface of the top heat-sealing component.

3. The heat sealing device according to claim 2, characterized in that: The bottom heat-sealing component is fixedly mounted on the upper surface of the substrate by a support frame, and the bidirectional threaded rod passes through the interior of the support frame.

4. A heat sealing device according to claim 3, characterized in that: Both of the movable blocks have a limiting groove inside that cooperates with the support plate. The top of the movable block near the frame is higher than the upper surface of the bottom heat-sealing component. The bottom of the movable block is provided with a limiting protrusion, and the upper surface of the substrate is provided with a groove that cooperates with the limiting protrusion.

5. A heat sealing device according to claim 4, characterized in that: An L-shaped abutment block is fixedly connected to the side of the lower surface of the support plate away from the moving block. One end of the L-shaped abutment block abuts against the side of the bottom heat-sealing component. A compression spring is provided between the L-shaped abutment block and the moving block. Both the outer surfaces of the L-shaped abutment block and the moving block are provided with blind holes for installing the compression spring. A limiting insert for limiting the compression spring is provided inside the blind hole.

6. A heat sealing device according to claim 5, characterized in that: A limit block is fixedly installed at the bottom of the U-shaped fixed frame, and the limit block has an inclined surface on the side near the rotating plate.

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