A vacuum heat sealer layout

Abstract

This utility model discloses a layout structure for a vacuum heat sealing machine, relating to the field of vacuum heat sealing machine technology. It includes a frame housing, an electrical cabinet, a dry pump, a sealing cavity, and a sealing device. The dry pump, sealing cavity, and sealing device are all installed inside the frame housing. The electrical cabinet has the same side length as the frame housing and is connected to it. The sealing cavity includes a slidingly connected door assembly and a cavity body. The bottom of the sealing device slides with the bottom of the cavity body. The top of the cavity body is provided with a multi-head electrode flange for electrical connection of each group of heating strips. The mounting holes of the sealing device all face the door assembly. This utility model solves the technical problems of large equipment footprint and cumbersome installation and maintenance in traditional layout structures, achieving reasonable component arrangement and rapid installation.

Description

Technical Field

[0001] This utility model relates to the field of vacuum heat sealing machine technology, and specifically to a layout structure of a vacuum heat sealing machine. Background Technology

[0002] As equipment integration increases, the rationality of its overall layout becomes a key factor affecting equipment performance. Traditional equipment layouts often employ a "building block" design, with functional modules simply stacked, resulting in large floor space and chaotic piping. Installation requires extensive on-site adjustments, with commissioning cycles lasting several weeks. Existing guide rail systems mostly use ordinary linear guides, relying on manual alignment for installation benchmarks, making it difficult to control accumulated errors. Electrical wiring and mechanical structures interfere significantly, requiring the removal of numerous peripheral components for maintenance. More importantly, existing equipment lacks modular design, resulting in poor component interchangeability between different models and high spare parts inventory pressure. Upgrades often require replacing the entire main structure, with costs sometimes exceeding those of purchasing new equipment. Particularly in special environments such as cleanrooms, problems such as dust accumulation and chaotic airflow caused by irrational layouts are particularly prominent. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a layout structure for a vacuum heat sealing machine, so as to solve the technical problems of large equipment footprint and complicated installation and maintenance of traditional layout structures, and to achieve reasonable arrangement of components and rapid installation.

[0004] To solve the above problems, the technical solution provided by this utility model is as follows:

[0005] A vacuum heat sealing machine layout includes a frame housing, an electrical cabinet, a dry pump, a sealing cavity, and a sealing device. The dry pump, sealing cavity, and sealing device are all installed inside the frame housing. The electrical cabinet has the same side length as the frame housing and is connected to it. The sealing cavity includes a slidingly connected door assembly and a cavity body. The bottom of the sealing device slides with the bottom of the cavity body. The top of the cavity body is provided with a multi-head electrode flange for electrical connection of each group of heating strips. The mounting holes of the sealing device all face the direction of the door assembly.

[0006] As the main framework and outer shell of the equipment, the core function of the chassis enclosure is to provide an integrated mounting platform and physical protection for core components such as the dry pump, packaging chamber, and packaging device. It integrates disparate components into a compact whole, significantly reducing the overall footprint of the equipment and creating a neat and uniform appearance. It also facilitates the management of internal cables and conduits, preventing external interference. As the "brain" and "power distribution center" of the equipment, the electrical cabinet centrally houses all electrical control components such as PLCs, circuit breakers, contactors, drivers, and power supplies, enabling modular and standardized management of the electrical system. The design of connecting to the sides of the chassis enclosure at the same length aims to achieve seamless integration between the electrical and mechanical parts, greatly simplifying wiring routes, shortening cable lengths, avoiding clutter, and facilitating centralized heat dissipation, maintenance, and repair. The dry pump is the core power source of the vacuum system. Its function is to rapidly establish and maintain the vacuum level required for the process within the packaging chamber, creating an oxygen-free, low-pressure environment for high-quality heat sealing and preventing oxidation or bubble formation of the packaging material during heating. The packaging chamber provides a sealable vacuum working environment and is the core location for performing the packaging process. The sliding connection between the door assembly and the cavity body enables rapid and smooth opening and closing of the chamber, facilitating workpiece loading and unloading and improving operational efficiency. The encapsulation device is the module that directly performs heating and pressurizing encapsulation functions, typically including heating strips, pressure plates, and heat insulation components. Its bottom slides into the bottom of the cavity body, allowing the entire encapsulation device to be pulled out or pushed in from the cavity like a drawer. This design greatly facilitates installation, debugging, heating strip replacement, and cleaning and maintenance. The multi-head electrode flange, as a centralized electrical junction, solves the electrical connection problem of multiple heating strips inside and outside the vacuum cavity. It integrates multiple power supplies and control lines onto a single flange interface, achieving rapid, reliable, and unified connection, avoiding the complexity and sealing risks of multiple individual wires passing through the vacuum cavity wall. Mounting holes (facing the door assembly) are used to finally fix the encapsulation device inside the cavity body. The design, with all mounting holes facing the overall assembly direction of the door (i.e., the front of the equipment), is a human-centered maintainability design. Its core function is to allow operators to complete all installation and fastening operations of the sealing device from the front of the equipment without moving the equipment or disassembling other components, greatly improving the convenience of installation and maintenance.

[0007] Optionally, the bottom of the packaging device is provided with a base plate, which is connected to the ball bearing structure. The bottom of the cavity body is provided with a sliding groove, and the ball bearing structure slides in cooperation with the sliding groove.

[0008] The base plate (located at the bottom of the packaging device) serves as the foundation support plate for the packaging device. Its function is to provide a mounting surface and support for the upper structure of the packaging device (such as heating strips, insulating components, etc.), and also to serve as the base for connection with the sliding mechanism (ball bearing structure). The ball bearing structure is a linear motion component that converts the sliding friction between the packaging device and the cavity body base into rolling friction, thereby significantly reducing movement resistance and allowing heavy or precision packaging devices to be easily and smoothly pushed into or pulled out of the cavity. The slide groove (located at the bottom of the cavity body) precisely matches the ball bearing structure, serving as a guide rail. Its function is to constrain the movement path of the packaging device, ensuring that it accurately enters the working position along a straight line and preventing deviation or jamming during the pushing process.

[0009] Optionally, the base plate is connected to the ball bearing structure via a cross loading plate, with both sides of the cross loading plate fixed to the base plate, and the cross loading plate having multiple long strips of ball bearing structure arranged along its length.

[0010] The cross-shaped loading plate is a connecting and reinforcing component between the base plate and the ball bearing structure. Its functions are twofold: first, to increase the rigidity and stability of the connection between the ball bearing structure and the base plate; and second, through its cross-shaped or elongated structure, to distribute multiple ball bearings onto a larger support surface, optimizing load distribution and preventing deformation of the base plate due to uneven stress. The elongated arrangement of multiple ball bearings further enhances the load-bearing capacity and stability of the sliding system by increasing the number of ball bearings and expanding their support range, making it particularly suitable for heavier encapsulation devices, ensuring they remain level during movement and eliminating the risk of tipping over.

[0011] Alternatively, the cross-shaped loading plates can be arranged symmetrically.

[0012] The symmetrical arrangement of the cross-shaped loading plate is a key design feature to ensure balanced force and smooth movement. Its function is to ensure that the center of gravity of the packaging device falls on the center of symmetry of the sliding mechanism, avoiding torque generated during sliding due to load eccentricity, which could cause additional friction, wear, or even jamming.

[0013] Optionally, the encapsulation device may also include PEEK insulation components, such as a PEEK base plate and a mounting block, for electrical insulation and thermal management.

[0014] PEEK insulation components (such as PEEK base plates and mounting blocks) utilize PEEK (polyetheretherketone), a high-performance engineering plastic with excellent insulation, high-temperature resistance, and mechanical strength. When used as base plates and mounting blocks, its core function is to provide reliable electrical insulation, preventing high-voltage leakage from the heating element to the equipment's metal structure and ensuring personal safety. It also functions as a thermal management component, reducing heat loss from the heating element to the metal base and improving thermal efficiency.

[0015] Alternatively, the mounting holes can be of the same size.

[0016] The uniform size of the mounting holes represents a standardized and modular design. Standardizing the mounting hole size simplifies the machining process (requiring only one type of tool), reduces the types of fasteners (requiring only one type of bolt), thereby lowering production and maintenance complexity and costs, improving assembly efficiency, and preventing errors or delays during installation due to searching for matching bolts.

[0017] Optionally, the door assembly and the cavity body are slidably connected by a guide rail body, and the door assembly is connected to the cylinder by a lifting door cover.

[0018] The guide rail body is an advanced guiding component that enables precise and smooth linear sliding of the door assembly relative to the cavity body. Compared to ordinary guide rails, its function is to provide higher rigidity and motion precision, ensuring that the door maintains the correct relative position with the cavity opening during repeated opening and closing, thereby guaranteeing the reliability of the seal. The lifting door cover is a structural component connecting the door assembly and the cylinder drive components. Its functions are twofold: first, to transmit the thrust or pull force of the cylinder to drive the door movement; and second, to act as a protective cover, protecting the internal connecting mechanisms from impact and contamination. The cylinder, as the power actuator for the automatic opening and closing of the door, converts the pressure energy of compressed air into the mechanical energy of linear motion, realizing the automated opening and closing of the door, reducing the labor intensity of operators, and improving the automation level of the equipment.

[0019] Optionally, the door assembly may be fixedly provided with a plurality of sliding seats, which are slidably connected to the guide rail body.

[0020] The sliding block (i.e., the slider of the linear guide) is a key component of the guide rail pair. Its function is to directly cooperate with the guide rail body to precisely "suspend" or support the door assembly on the guide rail, and to bear the weight of the door and various torques generated by its movement, achieving efficient rolling friction motion. The purpose of using multiple sliding blocks (usually at least two) is to provide "statically determinate" or "hyperstatically indeterminate" support. Its function is to significantly improve the stability and rigidity of the door's movement, prevent sagging or wobbling that may occur after long-term use due to single-point support, and ensure the long-term sealing accuracy of the door and the cavity opening.

[0021] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0022] Space optimization: The compact layout of components reduces the footprint of the equipment and improves space utilization.

[0023] Easy installation: The guide rails and standard holes simplify the assembly process and reduce manufacturing costs.

[0024] Systematic innovation: The overall layout improves equipment reliability through structural complementarity, which is in line with the practical orientation of utility models.

[0025] Suitable for complex industrial systems, such as packaging equipment or laboratory instruments, where layout optimization is directly related to performance improvement. Attached Figure Description

[0026] Figure 1 A schematic diagram of the overall structure of a vacuum heat sealing machine layout proposed for an embodiment of this utility model;

[0027] Figure 2 A schematic diagram of the structure for removing the cover of a vacuum heat sealing machine, as proposed in an embodiment of this utility model;

[0028] Figure 3 A schematic diagram of the door assembly direction of a vacuum heat sealing machine layout structure proposed for an embodiment of this utility model;

[0029] Figure 4 An internal schematic diagram of a packaging device with a vacuum heat sealing machine layout structure proposed for an embodiment of this utility model;

[0030] Figure 5 A partial internal schematic diagram of a packaging device with a layout structure for a vacuum heat sealing machine, as proposed in an embodiment of this utility model;

[0031] Figure 6 A schematic diagram of the mounting hole positions in a layout structure of a vacuum heat sealer proposed for an embodiment of this utility model;

[0032] Figure 7 A partial structural schematic diagram of the mounting hole positions of a vacuum heat sealing machine layout structure proposed in an embodiment of this utility model;

[0033] Figure 8 A schematic diagram of the bottom of the cavity body of a vacuum heat sealing machine layout structure proposed in an embodiment of this utility model;

[0034] Figure 9 A schematic diagram of the bottom plate removal structure of the cavity body of a vacuum heat sealing machine layout structure proposed in an embodiment of this utility model;

[0035] 1. Bench cover; 2. Electrical cabinet; 3. Dry pump; 4. Encapsulation cavity; 401. Door assembly; 402. Cavity body; 4021. Slide rail; 403. Electrode flange; 404. Lifting door cover; 405. Guide rail body; 406. Mounting hole; 407. Cross loading plate; 5. Encapsulation device; 501. Base plate. Detailed Implementation

[0036] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments.

[0037] Example 1

[0038] Combined with appendix Figure 1-7A vacuum heat sealing machine layout structure includes a frame housing 1, an electrical cabinet 2, a dry pump 3, a sealing cavity 4, and a sealing device 5. The dry pump 3, sealing cavity 4, and sealing device 5 are all installed inside the frame housing 1. The electrical cabinet 2 has the same side length as the frame housing 1 and is connected to it. The sealing cavity 4 includes a slidingly connected door assembly 401 and a cavity body 402. The bottom of the sealing device 5 slides with the bottom of the cavity body 402. The top of the cavity body 402 is provided with a multi-head electrode flange 403 for electrical connection of each group of heating strips. The mounting holes 406 of the sealing device 5 all face the door assembly 401. The frame housing 1 is typically constructed of profiles (such as aluminum profiles) and sheet metal parts, which are bolted or welded to form a robust frame structure. Other functional modules are installed based on this frame, ensuring the relative positional accuracy between the components. The closed or semi-closed design of the housing effectively isolates the mechanical movement, heat, and noise inside the equipment, providing a solid foundation for the stable operation of the entire equipment. The electrical cabinet 2, as an independent unit, has its internal components laid out and wired according to electrical specifications. After the main power supply is connected to the electrical cabinet 2, the power and control signals are distributed, converted, and controlled by the internal components, and then transmitted to the dry pump 3, cylinders, heating bars, and other actuators through the cable trays or connectors at the interface between the cabinet and the outer cover 1. This layout allows electrical debugging and troubleshooting to be completed centrally within the electrical cabinet 2. The dry pump 3 (such as a screw dry pump 3 or a claw dry pump 3) is driven by a motor to rotate a pair of non-contact rotors at high speed within the pump chamber, continuously extracting gas from the chamber and discharging it to the atmosphere through the principle of volume change. Due to its "dry" operation (no need for pump oil sealing and lubrication), it avoids oil vapor contamination of the encapsulated chamber 4 and the product, making it particularly suitable for applications with high cleanliness requirements. The chamber body 402 is a fixed part, typically a sealed container made of metal (such as stainless steel) (open on one side). The door assembly 401, as a moving part, docks with the chamber body 402 via a sliding mechanism (see subsequent claims for details). After the door is closed and locked, an airtight seal is formed between it and the cavity body 402 via a sealing ring. The dry pump 3 is connected to the cavity body 402 via a pipe, evacuating its interior to create a vacuum. In this vacuum environment, the encapsulation device 5 is energized and heated, causing its heating strip to reach a set temperature. Driven by a cylinder or hydraulic device, pressure is applied to the workpiece placed between two thin films, causing the films to thermally fuse and bond. A sliding base allows for overall movement, eliminating the need for maintenance within the confined cavity. The flange is fixedly mounted on the top (or side wall) of the cavity body 402 and contains multiple insulated electrodes. After the encapsulation device 5 is pushed into place within the cavity, the corresponding electrode plugs on the device precisely align with the electrode sockets on the flange. External power is introduced through an interface connected to the back of the flange, enabling power transmission from outside the cavity to the heating strip inside.After the encapsulation device 5 is pushed into the cavity along the slide 4021 and reaches the predetermined position, the operator stands in front of the equipment and, by opening the door or reaching directly into the tool from the front, uses bolts to fasten the encapsulation device 5 to the corresponding threaded hole on the cavity base through the mounting hole 406 facing the front. This design eliminates the need for difficult operations at the rear or side of the equipment.

[0039] Combined with appendix Figure 8-9 The bottom of the packaging device 5 is provided with a base plate 501, which is connected to the ball bearing structure. The bottom of the cavity body 402 is provided with a groove 4021, and the ball bearing structure slides in cooperation with the groove 4021. The base plate 501 is usually a flat metal plate, with the packaging functional components mounted on the upper part and connected to the sliding mechanism at the lower part. It is responsible for transferring the weight and working load of the packaging device 5 to the ball bearing structure. The ball bearing structure usually refers to a linear bearing or a self-lubricating slide rail assembly, which contains freely rolling balls. When the packaging device 5 is subjected to axial thrust, the balls roll between the base plate 501 and the groove 4021 of the cavity base, achieving smooth linear motion. The groove 4021 is a precision groove machined on the bottom plane of the cavity body 402 or a base for mounting standard guide rails. The ball bearing structure is embedded in the groove 4021, and the groove wall guides and limits the ball bearing structure, ensuring the linear accuracy of the movement.

[0040] The base plate 501 is connected to the ball bearing structure via a cross-shaped loading plate 407. The two sides of the cross-shaped loading plate 407 are fixed to the base plate 501. The cross-shaped loading plate 407 has multiple long, strip-shaped ball bearing structures along its length. The cross-shaped loading plate 407 is fixed below the base plate 501, and its length direction is consistent with the sliding direction. The multiple ball bearing structures are arranged along their length, distributing the weight of the encapsulation device 5 to multiple support points, making the sliding smoother and increasing the load-bearing capacity. The multiple ball bearings are arranged in a linear pattern, sharing the load, which is equivalent to increasing the number of support points. This design reduces the individual load on each ball bearing, reduces wear, and better adapts to possible slight unevenness, resulting in smoother movement.

[0041] The cross-shaped loading plate 407 is symmetrically arranged. With the center line of the device or packaging unit 5 as the axis of symmetry, the cross-shaped loading plate 407 and the ball bearing structure on it are symmetrically arranged. In this way, regardless of the center of gravity of the packaging unit 5 itself, its load can be evenly borne by the symmetrical support points, ensuring that only axial movement occurs during sliding, without any tendency to twist.

[0042] The encapsulation device 5 also includes PEEK insulation components, such as a PEEK base plate 501 and mounting blocks, for electrical insulation and thermal management. The PEEK base plate 501 is mounted between the metal base plate 501 and the heating strip, and the PEEK mounting blocks are used to fix the electrodes and other parts of the heating strip. They physically separate the charged heating components from the grounded metal parts of the device, forming an insulating barrier. Their low thermal conductivity ensures that heat is concentrated for encapsulation rather than dissipated into the device structure.

[0043] Combined with appendix Figure 6-7 All mounting holes 406 are the same size. During the design and manufacturing phases, all mounting holes 406 used to secure the encapsulation device 5 are designed with the same diameter, depth, and thread specification. This allows operators to tighten all mounting points using only one tool and one specification of bolts during assembly line or field maintenance.

[0044] The door assembly 401 and the cavity body 402 are slidably connected via a guide rail body 405. The door assembly 401 is connected to the cylinder via a lifting door cover 404. The guide rail body 405 is typically a precision linear guide pair, consisting of a track and a slider. The track is fixed to the cavity, and the slider is fixed to the door. The slider contains balls or rollers that roll on the track, achieving high-precision linear motion with a low coefficient of friction and long service life. One end of the lifting door cover 404 is rigidly connected to the door assembly 401, and the other end is connected to the piston rod of the cylinder. When the cylinder actuates, force is transmitted through the lifting door cover 404, causing the entire door assembly 401 to move along the guide rail body 405. The on / off and direction of compressed air are controlled by a solenoid valve. When compressed air enters the rodless chamber of the cylinder, it pushes the piston rod to extend, closing the door; when it enters the rod chamber, the piston rod retracts, opening the door. Its movement is smooth and easy to control.

[0045] Multiple sliding seats are fixedly connected to the door assembly 401, and these sliding seats are slidably connected to the guide rail body 405. Each sliding seat contains a ball bearing circulation system. When the door moves, the balls in the sliding seats roll along the raceways of the guide rail body 405, completing the relative movement. Rolling friction resistance is extremely low, resulting in sensitive movement. Multiple sliding seats are distributed along the width or height of the door assembly 401, sharing the load of the door. This multi-point support structure effectively resists overturning moments, ensuring that the door maintains good flatness and a tight fit with the cavity opening during movement and in the closed state.

[0046] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A layout structure for a vacuum heat sealing machine, characterized in that, The device includes a frame housing, an electrical cabinet, a dry pump, a packaging cavity, and a packaging device. The dry pump, packaging cavity, and packaging device are all installed inside the frame housing. The electrical cabinet has the same side length as the frame housing and is connected to it. The packaging cavity includes a slidingly connected door assembly and a cavity body. The bottom of the packaging device slides with the bottom of the cavity body. The top of the cavity body is provided with a multi-head electrode flange for electrical connection of each group of heating strips. The mounting holes of the packaging device all face the direction of the door assembly.

2. The layout structure of a vacuum heat sealing machine according to claim 1, characterized in that, The bottom of the packaging device is provided with a base plate, which is connected to the ball bearing structure. The bottom of the cavity body is provided with a sliding groove, and the ball bearing structure slides in cooperation with the sliding groove.

3. A vacuum heat sealing machine layout according to claim 2, wherein, The base plate is connected to the ball bearing structure via a cross loading plate. The two sides of the cross loading plate are fixed to the base plate. The cross loading plate has multiple long strips of ball bearing structure arranged along its length.

4. The layout structure of a vacuum heat sealing machine according to claim 3, characterized in that, The cross-shaped loading plates are arranged symmetrically.

5. The layout structure of a vacuum heat sealing machine according to claim 1, characterized in that, The encapsulation device also includes PEEK insulation components, such as a PEEK base plate and a fixing block, for electrical insulation and thermal management.

6. The layout structure of a vacuum heat sealing machine according to claim 1, characterized in that, The mounting holes are all the same size.

7. The layout structure of a vacuum heat sealing machine according to claim 1, characterized in that, The door assembly and the cavity body are slidably connected by a guide rail body, and the door assembly is connected to the cylinder by a lifting door cover.

8. The layout structure of a vacuum heat sealing machine according to claim 7, characterized in that, Multiple sliding seats are fixedly connected to the door assembly, and the sliding seats are slidably connected to the guide rail body.

Images