Constant temperature shrinkage furnace with convenient maintenance

Abstract

The utility model relates to the technical field of shrinkage furnace, disclose a constant temperature shrinkage furnace convenient to maintain, include: frame, the frame top is equipped with heat shrinkage station, one side of frame is equipped with at least one hinged seat, upper cover, two ends are equipped with inlet safety door and discharge safety door respectively, inlet safety door with discharge safety door all are equipped with a plurality of observation hole for observing inside, the upper cover covers in heat shrinkage station top, the upper cover with hinged seat rotation connection, to be used for rotating the upper cover along hinged seat place and expose heat shrinkage station, a pair of telescopic link, one telescopic link both ends are rotatably connected inlet safety door with frame respectively, another telescopic link both ends are rotatably connected discharge safety door with frame respectively. The application not only improves the maintenance convenience and safety of constant temperature shrinkage furnace, but also improves the visibility and operability in daily use, improves the practical value of equipment as a whole.

Description

Technical Field

[0001] This utility model relates to the field of shrink oven technology, and in particular to a constant temperature shrink oven that is easy to maintain. Background Technology

[0002] Thermostatic shrink ovens are widely used in the packaging industry to heat and shrink laminated products, ensuring a tight seal and achieving excellent packaging results. During long-term operation, internal components such as heating elements, conveying devices, and temperature control systems may experience wear and tear or malfunction due to the high-temperature environment and continuous use, necessitating regular maintenance and repair. However, existing thermostatic shrink ovens generally employ a fully enclosed structure, requiring manual disassembly or removal of the upper structure for maintenance. This process is not only cumbersome and time-consuming but also physically demanding for operators. Furthermore, the lack of stable and reliable auxiliary measures when opening or temporarily supporting the upper structure often leads to structural collapse or accidental closure, hindering maintenance and posing safety hazards. Moreover, the lack of intuitive observation methods in the structural design of most equipment makes it difficult for users to promptly assess the internal operating status of the oven cavity, limiting the timeliness and efficiency of maintenance. Therefore, improving the convenience and safety of maintenance while maintaining the normal performance of thermostatic shrink ovens has become a pressing technical problem to be solved in this field. Utility Model Content

[0003] The main purpose of this utility model is to provide a constant temperature shrink oven that is easy to maintain, in order to solve the technical problem that the interior of the existing constant temperature shrink oven is inconvenient to inspect and maintain.

[0004] To achieve the above objectives, this utility model provides a constant temperature shrink oven that is easy to maintain, comprising: A frame, with a heat shrink station at its top and at least one hinge seat on one side; a top cover, with an inlet safety door and an outlet safety door at each end, each with several observation holes for observing the interior; the top cover is fitted onto the top of the heat shrink station and is rotatably connected to the hinge seat to allow the top cover to rotate along the hinge seat to expose the heat shrink station; a pair of telescopic rods, one of which is rotatably connected at both ends to the inlet safety door and the frame, and the other is rotatably connected at both ends to the outlet safety door and the frame; when the top cover is opened along the hinge seat, the telescopic rods extend with the rotation of the top cover until the rotation limit of the top cover is reached, at which point the telescopic rods stop extending and the top cover is fixed; when the top cover is closed again, the telescopic rods are reset and the top cover is rotated to its initial position.

[0005] Preferably, the top cover has a hook seat on the side opposite to the hinge seat, and the frame has a hook clamp seat that cooperates with the hook seat near the hook seat. When the top cover is in the initial position, the hook clamp seat is hooked to the hook seat.

[0006] Preferably, the upper cover is provided with a pair of handles, which are located on one side of the hook seat.

[0007] Preferably, the upper cover is provided with a viewing window, and the side of the viewing window away from the heat shrink station is covered with a PVC board.

[0008] Preferably, the viewing window is provided with a plurality of protective gaskets around its perimeter, and the PVC board is installed on the top of the protective gaskets.

[0009] Preferably, an electrical box is provided on one side of the frame, and a control panel is provided on one side of the electrical box.

[0010] Preferably, the electrical box is provided with a first exhaust fan on its side and a second exhaust fan on its bottom surface.

[0011] Preferably, the electrical box is equipped with a first door panel on both sides, and the first door panel is provided with a first air outlet.

[0012] Preferably, a second door panel is installed on the back of the frame, and the second door panel is provided with a second air outlet.

[0013] Preferably, air outlet covers are provided on both sides of the heat shrink station, and the air outlet covers are used to supply the generated hot air to the heat shrink station.

[0014] The technical solution provided by this utility model features a rotatable and openable top cover on the frame, allowing the furnace cavity to be quickly exposed when inspection or maintenance is required, eliminating cumbersome disassembly steps and significantly improving maintenance convenience. Through the cooperation of the infeed safety door, the discharge safety door, and the telescopic rod, when the top cover is flipped to its limit position (meaning the top cover is opened and fixed, which is also the maximum angle of rotation), the telescopic rod extends accordingly, providing limit and support functions, effectively preventing the top cover from falling due to its own weight and ensuring operational safety during maintenance. When the top cover is closed again, the telescopic rod resets, allowing the top cover to smoothly return to its initial position (the initial position refers to the position where the top cover is fully closed with the frame; the equipment can only be started when the top cover is in this position), making operation simple and reliable. Furthermore, multiple observation holes are provided on the safety doors at both ends of the top cover, allowing operators to directly observe the internal state of the furnace cavity during equipment operation, especially the state at the heat shrink station, facilitating timely detection of abnormalities and avoiding production efficiency losses due to blind shutdowns or disassembly. Therefore, this application not only improves the maintenance convenience and safety of the constant temperature shrink oven, but also enhances the visibility and operability in daily use, thereby improving the overall practical value of the equipment. Attached Figure Description

[0015] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0016] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the thermostatic shrink oven that is easy to maintain according to this utility model; Figure 2 This is a schematic diagram of the overall structure of one embodiment of the thermostatic shrink oven that is easy to maintain according to this utility model; Figure 3 This is a rear view structural diagram of an embodiment of the thermostatic shrink oven that is easy to maintain according to this utility model. Figure 4 This is a bottom view of one embodiment of the constant temperature shrink oven of this utility model that is easy to maintain.

[0017] In the diagram: 1. Frame; 11. Heat shrink station; 111. Exhaust cover; 12. Hinge seat; 13. Hook seat; 14. Electrical box; 141. Control panel; 142. First exhaust fan; 143. Second exhaust fan; 144. First door panel; 1441. First air outlet; 145. Second door panel; 1451. Second air outlet; 2. Top cover; 21. Feed safety door; 22. Discharge safety door; 23. Observation hole; 24. Hook seat; 25. Handle; 27. Viewing window; 271. PVC board; 272. Protective gasket; 3. Telescopic rod. Detailed Implementation

[0018] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and similar expressions used in this specification are for illustrative purposes only. In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or implying the number of indicated technical features. Thus, unless otherwise stated, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "multiple" means two or more. The term "comprising" and any variations thereof mean non-exclusive inclusion, where one or more other features, integers, steps, operations, units, components, and / or combinations thereof may be present or added.

[0019] Furthermore, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections via an intermediate medium, or internal communication between two components. All technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0020] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0021] Please refer to Figures 1 to 4This utility model provides a constant temperature shrink oven that is easy to maintain, comprising: a frame 1, with a heat shrink station 11 at the top of the frame 1 and at least one hinge seat 12 on one side of the frame 1; an upper cover 2, with a material inlet safety door 21 and a material outlet safety door 22 at both ends, each with several observation holes 23 for observing the interior; the upper cover 2 is fitted onto the top of the heat shrink station 11, and the upper cover 2 is rotatably connected to the hinge seat 12 for moving the upper cover 2 along the hinge. The heat shrink station 11 is exposed at the hinge seat 12; a pair of telescopic rods 3, one of which is rotatably connected to the inlet safety door 21 and the frame 1 at both ends, and the other is rotatably connected to the outlet safety door 22 and the frame 1 at both ends; when the upper cover 2 is opened along the hinge seat 12, the telescopic rod 3 extends with the upper cover 2 until the upper cover 2 is at its rotation limit, at which point the telescopic rod 3 stops extending and the upper cover 2 is fixed; when the upper cover 2 is closed again, the telescopic rod 3 is reset and the upper cover 2 is rotated to the initial position.

[0022] In the technical solution provided by this utility model, by setting a rotatable and openable upper cover 2 on the frame 1, the furnace cavity can be quickly exposed when inspection or maintenance is required, eliminating cumbersome disassembly steps and significantly improving the convenience of maintenance; through the cooperation of the infeed safety door 21 and the discharge safety door 22 with the telescopic rod 3, when the upper cover 2 is flipped to the limit position (referring to the fixed position of the upper cover 2, which is also the position of the maximum rotation angle of the upper cover 2), the telescopic rod 3 can extend accordingly and play a limiting and supporting role, thereby effectively preventing the upper cover 2 from falling due to its own weight. This ensures operational safety during maintenance. When the top cover 2 closes again, the telescopic rod 3 can reset, allowing the top cover 2 to smoothly return to its initial position (the initial position refers to the position where the top cover 2 is fully closed with the frame 1; the equipment can only be started when the top cover 2 is in this position), making operation simple and reliable. In addition, multiple observation holes 23 are provided on the safety doors at both ends of the top cover 2, allowing operators to directly observe the internal state of the furnace cavity during equipment operation, especially the state of the heat shrink station 11, facilitating timely detection of abnormalities and avoiding production efficiency losses due to blind shutdowns or disassembly. Therefore, this application not only improves the convenience and safety of maintaining the constant temperature shrink furnace but also enhances visibility and operability in daily use, thereby improving the overall practical value of the equipment.

[0023] Please refer to Figures 1 to 4 In this embodiment, the upper cover 2 has a hook seat 24 on the side opposite to the hinge seat 12, and the frame 1 has a hook clamp seat 13 that cooperates with the hook seat 24 near the hook seat 24. When the upper cover 2 is in the initial position, the hook clamp seat 13 hooks into the hook seat 24. When the upper cover 2 is in the initial position, the two are hooked and fixed, which can reliably lock the upper cover 2 in the closed state, preventing accidental opening due to vibration or airflow interference during operation, thereby improving the stability and safety of equipment operation.

[0024] Please refer to Figures 1 to 4 In this embodiment, the upper cover 2 is provided with a pair of handles 25, which are located on one side of the hook seat 24. This allows the operator to directly use the handles 25 to open or close the upper cover 2 after unlocking the hook clamp seat 13. It also facilitates the user to align the hook seat 24 and the hook clamp seat 13 and operate to fix these two structures.

[0025] Please refer to Figures 1 to 4 In this embodiment, the upper cover 2 is provided with a viewing window 27, and the side of the viewing window 27 facing away from the heat shrink station 11 is covered with a PVC board 271. The viewing window 27 on the upper cover 2 allows the operator to directly observe the operation inside the heat shrink station 11 during equipment operation, promptly grasp the shrinkage effect and equipment working status, thereby improving the intuitiveness of operation and the timeliness of maintenance. Furthermore, covering the side of the viewing window 27 facing away from the station with a PVC board 271 further enhances the heat resistance and safety of the viewing window 27, preventing damage caused by high temperatures or impacts.

[0026] Please refer to Figures 1 to 4 In this embodiment, a plurality of protective washers 272 are provided around the periphery of the viewing window 27, and a PVC plate 271 is installed on the top of the protective washers 272. By providing protective washers 272 around the periphery of the viewing window 27 and installing the PVC plate 271 on the top of the protective washers 272, the direct contact between the PVC plate 271 and the upper cover 2 can be effectively buffered, improving the stability and sealing of the installation, avoiding loosening or cracking caused by thermal expansion and contraction or vibration, thereby improving the service life and safety reliability of the window assembly.

[0027] Please refer to Figures 1 to 4 In this embodiment, an electrical box 14 is provided on one side of the frame 1, and a control panel 141 is provided on the other side of the electrical box 14. This enables centralized arrangement and control of electrical components, making the management and maintenance of the electrical parts more convenient. It also allows operators to perform quick operations from outside the equipment, improving safety and operational efficiency. A first exhaust fan 142 is provided on the side of the electrical box 14, and a second exhaust fan 143 is provided on the bottom of the electrical box 14. This creates vertical and horizontal airflow channels inside the electrical box 14, effectively enhancing heat dissipation and preventing electrical components from malfunctioning due to excessive local temperature rise during prolonged operation. This improves the stability and reliability of the electrical system.

[0028] Please refer to Figures 1 to 4 In this embodiment, the electrical box 14 is equipped with a first door panel 144 on both sides. The first door panel 144 is provided with a first air outlet 1441, which can not only further improve the ventilation and heat dissipation effect of the electrical box 14, but also allow for quick access to the interior of the electrical box 14 for maintenance when maintenance is required by disassembling the door panel, thereby improving heat dissipation efficiency and maintenance convenience.

[0029] Please refer to Figures 1 to 4 In this embodiment, a second door panel 145 is installed on the back of the frame 1. The second door panel 145 is provided with a second air outlet 1451, which can increase the exchange area between the air inside the frame 1 and the external environment, thereby further improving the ventilation and heat dissipation effect of the whole machine, avoiding heat accumulation inside the frame 1, and improving the stability of equipment operation.

[0030] Please refer to Figures 1 to 4 In this embodiment, air outlet covers 111 are provided on both sides of the heat shrink station 11. The air outlet covers 111 are used to supply the generated hot air to the heat shrink station 11, and to supply the generated hot air evenly to the station area. This not only improves the uniformity of hot air distribution and ensures the consistency of the shrinkage process, but also improves heating efficiency and reduces energy consumption.

[0031] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Under the concept of this utility model, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of this utility model as described above. For the sake of brevity, they are not provided in detail. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A constant temperature shrinkage oven which is easy to maintain, characterized in that, include: The frame (1) has a heat shrink station (11) at the top and at least one hinge seat (12) on one side. The top cover (2) has an inlet safety door (21) and an outlet safety door (22) at both ends. The inlet safety door (21) and the outlet safety door (22) are each provided with several observation holes (23) for observing the interior. The top cover (2) is closed on the top of the heat shrink station (11). The top cover (2) is rotatably connected to the hinge seat (12) so as to rotate the top cover (2) along the hinge seat (12) to expose the heat shrink station (11). A pair of telescopic rods (3), one of which is rotatably connected at both ends to the feed safety gate (21) and the frame (1), and the other is rotatably connected at both ends to the discharge safety gate (22) and the frame (1). When the upper cover (2) is opened along the hinge seat (12), the telescopic rod (3) extends with the upper cover (2) until the upper cover (2) reaches its rotation limit. Then the telescopic rod (3) stops extending and fixing the upper cover (2). When the upper cover (2) is closed again, the telescopic rod (3) is reset and the upper cover (2) is rotated back to its initial position.

2. The easy service constant temperature shrinkage oven according to claim 1, wherein The upper cover (2) is provided with a hook seat (24) on the side away from the hinge seat (12). The frame (1) is provided with a hook clamp seat (13) that cooperates with the hook seat (24) near the hook seat (24). When the upper cover (2) is in the initial position, the hook clamp seat (13) hooks into the hook seat (24).

3. The easy service constant temperature shrinkage oven according to claim 2, wherein The top cover (2) is provided with a pair of handles (25), which are located on one side of the hook seat (24).

4. The easy maintenance constant temperature shrinkage oven according to claim 1 or 3, characterized in that, The upper cover (2) is provided with a viewing window (27), and the side of the viewing window (27) away from the heat shrink station (11) is covered with a PVC board (271).

5. The easy service constant temperature shrinkage oven according to claim 4, wherein The viewing window (27) is provided with several protective gaskets (272) around its perimeter, and the PVC board (271) is installed on the top of the protective gaskets (272).

6. The easy service constant temperature shrinkage oven according to claim 1, wherein An electrical box (14) is provided on one side of the frame (1), and a control panel (141) is provided on one side of the electrical box (14).

7. The easy service constant temperature shrinkage oven according to claim 6, wherein The electrical box (14) is provided with a first exhaust fan (142) on its side and a second exhaust fan (143) on its bottom.

8. The easy service constant temperature shrinkage oven according to claim 7, wherein The electrical box (14) is equipped with a first door panel (144) on both sides, and the first door panel (144) is provided with a first air outlet (1441).

9. The easy service constant temperature shrinkage oven according to claim 1, wherein The frame (1) has a second door panel (145) installed on the back, and the second door panel (145) has a second air outlet (1451).

10. The easy service constant temperature shrinkage oven according to claim 1, wherein The heat shrink station (11) is provided with air outlet covers (111) on both sides. The air outlet covers (111) are used to supply the generated hot air to the heat shrink station (11).

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