Thermal shrinkage furnace capable of reducing heat energy loss

Abstract

The utility model relates to the field of thermal shrinkage furnaces, in particular to a thermal shrinkage furnace capable of reducing heat energy loss, which comprises a rack, a thermal shrinkage furnace and an air blower, a platform is arranged on the rack, and the thermal shrinkage furnace and the air blower are arranged on the platform; a heating channel is arranged in the thermal shrinkage furnace, a plurality of heating rods are arranged in the heating channel, air inlets are formed in the two ends, away from the center position, of the back face of the thermal shrinkage furnace, air outlets are formed in the ends, away from the air inlets, of the thermal shrinkage furnace, and the heating channel is communicated with the air inlets and the air outlets. The air blower is arranged on the platform and close to an air inlet of the thermal shrinkage furnace, a suction opening is formed in the center of the back face of the thermal shrinkage furnace, a backflow channel communicated with the suction opening is arranged at an air outlet of the air blower, an air blowing opening of the air blower is in butt joint with the air inlet of the thermal shrinkage furnace, and an air suction opening of the air blower is in butt joint with the suction opening of the thermal shrinkage furnace. The device effectively reduces the loss of heat energy.

Description

Technical Field

[0001] This utility model relates to the field of heat shrink ovens, specifically to a heat shrink oven that reduces heat loss. Background Technology

[0002] Heat shrink ovens are important pieces of equipment widely used in industrial production, primarily for heating items to achieve shrinkage, curing, and drying. They play a crucial role in industries such as plastics, rubber, paint, printing, and food. Their basic principle is to generate heat through heating elements, raising the temperature inside the oven to heat-treat the items placed within. However, current heat shrink oven technology cannot recover gases that retain some heat but haven't reached the required temperature for shrinkage, resulting in heat waste.

[0003] Therefore, the present invention aims to provide a heat shrink oven that reduces heat loss to solve the above problems. Utility Model Content

[0004] To address the aforementioned problems, a heat shrinking oven with reduced heat loss is provided. By setting up a heating channel and a reflux channel inside the heat shrinking oven, the heating channel is used to heat the gas, and the reflux channel is used to recover the gas that has not reached the required temperature for heat shrinking. The gas is then sent back to the heating channel for heating by a blower, thereby reducing heat loss and solving the problem of heat loss caused by the lack of a recovery device.

[0005] To address the problems of existing technologies, this utility model provides a heat shrink oven with reduced heat loss, comprising a frame, a heat shrink oven, and a blower. A platform is provided on the frame, and the heat shrink oven and blower are mounted on the platform. The heat shrink oven has a heating channel containing several heating rods. Air inlets are located at both ends of the back of the heat shrink oven away from the center, and an air outlet is located at the end of the heat shrink oven away from the air inlets. The heating channel is connected to both the air inlets and the air outlet. The blower is located on the platform near the air inlet of the heat shrink oven. An exhaust port is located at the center of the back of the heat shrink oven, and a return channel connected to the exhaust port is located at the air outlet of the blower. The blower's air outlet connects to the air inlet of the heat shrink oven, and the blower's air intake connects to the exhaust port of the heat shrink oven.

[0006] Preferably, both the heat shrink oven and the blower are equipped with a movable base at their bottom, and the bottom surface of the movable base is provided with a slide rail, and the platform is provided with a slider that is slidably connected to the slide rail.

[0007] Preferably, the outer surface of the heat shrink oven is provided with a ventilated shell, and a number of through holes are evenly distributed on the ventilated shell at the air outlet. The return channel is spatially connected to the air outlet through the through holes.

[0008] Preferably, the blower's air outlet is connected to the heat shrink oven's air inlet, and the blower's air suction outlet is connected to the heat shrink oven's air exhaust outlet via flexible hoses.

[0009] Preferably, the platform has a movable groove, the movable base has a movable joint that is slidably connected to the movable groove, and the bottom of the platform has a cylinder, the push rod of the cylinder being threadedly connected to the movable joint.

[0010] Preferably, the ventilation shell is wrapped with thermal insulation material inside and out.

[0011] Preferably, the blower and the heat shrink oven are connected to the movable base by bolts.

[0012] Preferably, a pad is provided below the blower.

[0013] The advantages of this utility model compared to the prior art are:

[0014] 1. By designing a return channel system for the blower and the heat shrink oven, this utility model realizes the recovery and reuse of hot air after heat shrinking, effectively utilizes the heat energy that would otherwise be wasted, significantly reduces the overall energy consumption of the heat shrink oven, improves energy utilization efficiency, and achieves the goal of energy conservation and emission reduction.

[0015] 2. In this utility model, a ventilation shell and through holes are added to the outer surface of the heat shrink oven, forming a closed-loop hot air recovery system, which further improves the utilization rate of heat energy. At the same time, the insulation material wrapped inside and outside the ventilation shell effectively blocks the heat transfer path, reduces heat dissipation, maintains the stability of the internal temperature of the heat shrink oven, and improves the efficiency and quality of heat shrinking operation.

[0016] 3. The heat shrink oven and blower in this utility model are equipped with a movable base and slide rail slider structure at the bottom, which makes the entire device easy to move to the required position and improves the flexibility of operation. At the same time, the pads set under the blower effectively absorb vibration and noise during operation, providing operators with a more stable and quiet working environment and enhancing the comfort and practicality of the equipment. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of a heat shrink furnace for reducing heat loss according to this utility model.

[0018] Figure 2 This is a three-dimensional schematic diagram of the heat shrinking part of a heat shrink furnace for reducing heat loss according to this utility model.

[0019] Figure 3 This is a cross-sectional view of the heat shrinking part of a heat shrink furnace for reducing heat loss according to this utility model.

[0020] Figure 4This is a three-dimensional schematic diagram of a movable base for a heat shrink oven that reduces heat loss according to this utility model.

[0021] Figure 5 This is an exploded view of the components of a movable base for a heat shrink oven that reduces heat loss according to this utility model.

[0022] Figure 6 This is a partial cross-sectional view of a heat shrink furnace for reducing heat loss according to this utility model.

[0023] The following are the labels in the diagram: 1. Frame; 2. Heat shrink oven; 21. Heating channel; 22. Heating rod; 23. Air inlet; 24. Air outlet; 25. Return channel; 26. Exhaust vent; 3. Blower; 31. Air outlet; 32. Air intake; 4. Platform; 41. Movable base; 411. Slide rail; 42. Slider; 5. Ventilation housing; 6. Drive mechanism; 61. Moving slot; 62. Movable joint; 63. Cylinder; 7. Pad. Detailed Implementation

[0024] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0025] Reference Figures 1-6 As shown: A heat shrink oven with reduced heat loss includes a frame 1, a heat shrink oven 2, and a blower 3. A platform 4 is provided on the frame 1, and the heat shrink oven 2 and the blower 3 are located on the platform 4. The heat shrink oven 2 has a heating channel 21 inside, and several heating rods 22 are provided inside the heating channel 21. Air inlets 23 are provided at both ends of the back of the heat shrink oven 2 away from the center, and an air outlet 24 is provided at the end of the heat shrink oven 2 away from the air inlets 23. The heating channel 21 is connected to the air inlets 23 and the air outlet 24 respectively. The blower 3 is located on the platform 4 near the air inlets 23 of the heat shrink oven 2. An exhaust port 26 is provided at the center of the back of the heat shrink oven 2. A return channel 25 connected to the exhaust port 26 is provided at the exhaust port 24 of the blower 3. The blowing port 31 of the blower 3 is connected to the air inlet 23 of the heat shrink oven 2, and the suction port 32 of the blower 3 is connected to the exhaust port 26 of the heat shrink oven 2.

[0026] In existing technologies, the air blown out by the heat shrink machine retains some heat after heat shrinking, which cannot be utilized, resulting in high energy consumption in the heat shrink oven 2. To address this problem, this utility model discloses a heat shrink oven 2 designed to reduce heat loss, the working principle of which is as follows:

[0027] The heat shrink oven 2 is stably supported by a frame 1. Its main structure includes the heat shrink oven 2 and a blower 3, both mounted on a platform 4 provided by the frame 1. The heat shrink oven 2 has a heating channel 21 with several heating rods 22 evenly arranged within it to achieve efficient heating. On the back of the heat shrink oven 2, at both ends off-center, are air inlets 23 for introducing fresh air or circulating hot air; while at the end furthest from the air inlets 23, is an air outlet 24 to facilitate the heat shrinking of the workpiece located at the air outlet 24 by the hot air inside the oven. The heating channel 21 is interconnected with these air inlets 23 and air outlets 24, forming a complete hot air circulation path.

[0028] Blower 3 is mounted on platform 4, adjacent to air inlet 23 of heat shrink oven 2, to directly supply the required airflow to heat shrink oven 2. Additionally, exhaust vent 26 is located at the center of the back of heat shrink oven 2, and this exhaust vent 26 is connected to the suction vent 32 of blower 3 via return channel 25. Exhaust vent 24 of blower 3 is directly connected to air inlet 23 of heat shrink oven 2, forming a positive airflow pushing system; simultaneously, suction vent 32 of blower 3 is connected to exhaust vent 26 of heat shrink oven 2 via return channel 25, realizing the recovery and reuse of hot air after heat shrinking.

[0029] In this design, the blower 3 is not only responsible for blowing fresh or preheated air into the heat shrink oven 2, but also for extracting the air rich in residual heat generated during the heat shrinking process and reintroducing it into the heating channel 21 through the return channel 25 to participate in a new round of heat shrinking. This mechanism effectively utilizes the heat energy that would otherwise be wasted, significantly reducing the overall energy consumption of the heat shrink oven 2 and improving energy efficiency.

[0030] Reference Figures 1-5 As shown: The bottom of the heat shrink oven 2 and the blower 3 are both equipped with a movable base 41. The bottom surface of the movable base 41 is provided with a slide rail 411, and the platform 4 is provided with a slider 42 that is slidably connected to the slide rail 411.

[0031] In actual operation, the staff only need to apply moderate external force to push or pull the entire heat shrink oven 2 and blower 3 unit, and move them smoothly to the required position along the slide rail 411.

[0032] Reference Figures 1-6 As shown: The outer surface of the heat shrink oven 2 is provided with a ventilation shell 5. Several through holes are evenly distributed on the ventilation shell 5 at the air outlet 24. The return channel 25 is spatially connected to the air outlet 24 through the through holes.

[0033] The hot air is captured by the through-holes in the ventilation housing 5 instead of being directly dissipated into the external environment. This captured hot air then enters the return channel 25 through the through-holes and connects to the air intake 32 of the blower 3, forming a closed-loop hot air recovery system.

[0034] Reference Figures 1-6 As shown: the air outlet 31 of the blower 3 is connected to the air inlet 23 of the heat shrink oven 2, and the air intake 32 of the blower 3 is connected to the air exhaust 26 of the heat shrink oven 2 via flexible hoses.

[0035] The flexible hose connection method improves both the overall convenience and applicability of the device.

[0036] Reference Figure 5 As shown: The platform 4 is provided with a movable groove 61, the movable base 41 is provided with a movable joint 62 that is slidably connected to the movable groove 61, and the bottom of the platform 4 is provided with a cylinder, the push rod of the cylinder is threadedly connected to the movable joint 62.

[0037] During operation, the pneumatic rod acts as a power source, driving the movable joint 62 to move through the extension and retraction of its push rod, which in turn drives the movable base 41 to move along the guide rail.

[0038] The ventilation shell 5 is wrapped with thermal insulation material inside and out.

[0039] The insulation material outside the ventilation shell 5 has good thermal insulation properties, which can effectively block the heat transfer path and reduce heat dissipation.

[0040] The blower 3 and the heat shrink oven 2 are connected to the movable base 41 by bolts.

[0041] The bolted connection facilitates the replacement of the blower 3 and the heat shrink oven 2.

[0042] Reference Figure 2 As shown: A pad 7 is provided below the blower 3.

[0043] During operation, the blower 3 continuously draws in and exhausts air through the air inlet 31 and the air intake 32 to complete the air circulation and heat recovery inside the heat shrink oven 2. This process generates some vibration and noise from the blower 3. The pad 7 installed below, typically made of rubber, elastic plastic, or other materials with shock-absorbing and sound-insulating properties, effectively absorbs and disperses these vibrations, reducing noise transmission and making the overall operation of the heat shrink oven 2 smoother and quieter.

[0044] Working Principle: This heat shrink oven 2 device, which reduces heat loss, is stably supported by a frame 1. The main structure, including the heat shrink oven 2 and the blower 3, is securely mounted on a platform 4 above the frame 1. The heat shrink oven 2 has a heating channel 21 and several heating rods 22 inside to ensure efficient and uniform heating. Air inlets 23 are located at both ends of the back of the heat shrink oven 2, off-center, to introduce fresh air or preheated circulating hot air; while air outlets 24 are located at the end furthest from the air inlets 23, guiding hot air to perform the heat shrinking operation on the workpiece. The heating channel 21, air inlets 23, and air outlets 24 are interconnected, forming a complete hot air circulation path.

[0045] Blower 3 is installed adjacent to the air inlet 23 of heat shrink oven 2, facilitating the direct supply of airflow to the oven. Simultaneously, an exhaust vent 26 is located at the center of the back of heat shrink oven 2, which is connected to the air intake vent 32 of blower 3 via a return channel 25. The air outlet 24 of blower 3 is directly connected to the air inlet 23 of heat shrink oven 2, forming a smooth airflow system; while its air intake vent 32 is tightly connected to the exhaust vent 26 of heat shrink oven 2 via the return channel 25, achieving the recovery and reuse of hot air after heat shrinking.

[0046] Furthermore, both the heat shrink oven 2 and the blower 3 are equipped with a movable base 41 at their bottom. The bottom surface of the base has a slide rail 411, which is slidably connected to the slider 42 set on the platform 4. This allows the entire heat shrink oven 2 and blower 3 to be easily and smoothly moved to the desired position along the slide rail 411, greatly improving the flexibility of operation.

[0047] The ventilation shell 5 added to the outer surface of the heat shrink oven 2 has several through holes evenly distributed at its air outlet 24. These through holes can capture air rich in residual heat and prevent it from being directly lost to the external environment. Instead, the air enters the return channel 25 through the through holes and is connected to the air intake 32 of the blower 3, forming a closed-loop hot air recovery system, which further improves the utilization rate of heat energy.

[0048] The blower 3 is connected to the air inlet 23 and air outlet 26 of the heat shrink oven 2 by a flexible hose. This connection method not only improves the convenience of the device, but also enhances its applicability, making the connection more flexible and reliable.

[0049] The movable slot 61 on platform 4 is slidably connected to the movable joint 62 on the movable base 41, while the pneumatic rod at the bottom of platform 4 is threadedly connected to the movable joint 62. During operation, the pneumatic rod acts as a power source, driving the movable joint 62 to move through the extension and retraction of the push rod, thereby causing the entire movable base 41 to move smoothly along the guide rail, achieving precise adjustment of the positions of the heat shrink furnace 2 and the blower 3.

[0050] In addition, the ventilation shell 5 is wrapped with high-quality insulation material inside and out. This material has good thermal insulation performance, which can effectively block the heat transfer path and reduce heat dissipation, thereby maintaining the stability of the internal temperature of the heat shrink oven 2 and improving thermal efficiency.

[0051] The blower 3 and the heat shrink oven 2 are connected to the movable base 41 by bolts. This connection method facilitates the disassembly and replacement of the blower 3 and the heat shrink oven 2, and provides convenience for the maintenance and upgrading of the equipment.

[0052] Finally, the pad 7 installed below the blower 3 is made of materials with shock absorption and sound insulation properties such as rubber and elastic plastic. It can effectively absorb and disperse the vibration generated by the blower 3 during operation, reduce the transmission of noise, and make the overall operation of the heat shrink oven 2 more stable and quiet, providing a more comfortable working environment for the operators.

[0053] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A heat shrinkage furnace for reducing heat energy loss, comprising a frame (1), a heat shrinkage furnace (2) and a blower (3), characterized in that, The rack (1) is provided with a platform (4), and the heat shrinkage furnace (2) and the air blower (3) are arranged on the platform (4); The heat shrinkage furnace (2) is provided with a heating channel (21), a plurality of heating rods (22) are arranged in the heating channel (21), two ends of the back of the heat shrinkage furnace (2) away from the center are provided with air inlets (23), and one end of the heat shrinkage furnace (2) away from the air inlet (23) is provided with an air outlet (24); the heating channel (21) is in communication with the air inlet (23) and the air outlet (24) respectively; The air blower (3) is arranged on the platform (4) close to the air inlet (23) of the heat shrinkage furnace (2), and the center of the back of the heat shrinkage furnace (2) is provided with an air outlet (26); The air outlet (24) of the air blower (3) is provided with a backflow channel (25) in communication with the air outlet (26), the air outlet (23) of the heat shrinkage furnace (2) is connected with the air inlet (31) of the air blower (3), and the air outlet (26) of the heat shrinkage furnace (2) is connected with the air inlet (32) of the air blower (3).

2. The heat-shrunk furnace of claim 1, wherein, The heat shrinkage furnace (2) and the air blower (3) are both provided with a movable base (41); The bottom surface of the movable base (41) is provided with a sliding rail (411), and the platform (4) is provided with a sliding block (42) in sliding connection with the sliding rail (411).

3. The heat-shrunk furnace of claim 1, wherein, The heat shrinkage furnace (2) is provided with a ventilation shell (5) on the outer surface, and a plurality of through holes are uniformly distributed on the ventilation shell (5) at the air outlet (24); The backflow channel (25) is in space communication with the air outlet (24) through the through hole.

4. The heat-shrunk furnace of claim 1, wherein, The air inlet (31) of the air blower (3) and the air outlet (23) of the heat shrinkage furnace (2) are connected through a hose, and the air inlet (32) of the air blower (3) and the air outlet (26) of the heat shrinkage furnace (2) are connected through a hose.

5. The heat-shrinking furnace of claim 2, wherein, The platform (4) is provided with a moving groove (61), the movable base (41) is provided with a movable joint (62) in sliding connection with the moving groove (61), and the bottom of the platform (4) is provided with an air cylinder, and the push rod of the air cylinder is in threaded connection with the movable joint (62).

6. The heat-shrunk furnace of claim 3, wherein The ventilation shell (5) is wrapped with thermal insulation materials.

7. The heat-shrinking furnace of claim 2, wherein, The air blower (3) and the heat shrinkage furnace (2) are connected with the movable base (41) in a bolt connection mode.

8. The heat-shrinking furnace of claim 7, wherein, The air blower (3) is provided with a cushion block (7) below.

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