A tunnel type adjustable oven

Abstract

The present application belongs to the technical field of tunnel ovens, and specifically relates to a tunneled adjustable oven. The oven comprises a feeding belt, which is used for transporting materials to be processed and runs through the oven; a mounting rack, which is arranged across both ends of the width direction of the feeding belt; and a heating element, which is slidingly arranged on the mounting rack and has a length direction parallel to the transmission direction of the feeding belt. The mounting position and mounting mode of the heating element in the oven are changed by sliding adjustment of the heating element on the mounting rack. The heating element is mounted on a sliding rail or other sliding mechanism, so that it can freely move on the mounting rack. This design enables users to quickly adjust the position and distribution mode of the heating element according to the heating requirements of products (such as top heating, bottom heating or omnidirectional heating).

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel ovens, and in particular relates to an adjustable tunnel oven. Background Art

[0002] Traditional tunnel ovens are categorized by the location of the heating elements: top-mounted, bottom-mounted, and side-mounted. Top-mounted ovens are suitable for products that require even heating from above, such as bread and pizza; bottom-mounted ovens are suitable for products that require full bottom heating, such as cookies and pastries; and side-mounted ovens are suitable for products that require all-around heating, such as large food items or industrial materials.

[0003] To further enhance the oven's versatility, the industry has developed both modular and zoned installation methods. Modular installation allows for more flexible temperature control and heat distribution by utilizing heating elements on the top, bottom, or both sides simultaneously. Zoned installation, on the other hand, allows the tunnel oven to be divided into multiple independent temperature zones, each with its own heating pattern tailored to specific process requirements. The introduction of these two technologies has significantly improved oven adaptability and production efficiency.

[0004] However, while different heating element placements offer advantages, most tunnel ovens currently utilize fixed configurations. This limitation can create challenges in production. For example, some products may require rapid preheating to lock in flavor, while others require a long, constant temperature treatment to ensure consistent quality. Summary of the Invention

[0005] In view of this, an object of the present invention is to provide a tunnel-type adjustable oven to solve the problems existing in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the first technical solution of the present invention is a tunnel-type adjustable oven, which has a heating element and a fan. The oven includes a feed belt, which is used to transport materials to be processed and runs through the oven; a mounting frame, which is arranged across the width ends of the feed belt, and the heating element is slidably arranged on the mounting frame, and the length direction of the heating element is parallel to the transmission direction of the feed; the installation position and installation method of the heating element in the oven are changed by sliding adjustment of the heating element on the mounting frame.

[0007] Preferably, the mounting frame includes a first guide rail and a second guide rail arranged parallel to the feeding transmission direction, a plurality of sliders are provided on the first guide rail and the second guide rail, and the heating element is arranged between the slider of the first guide rail and the slider of the second guide rail.

[0008] Furthermore, the slider can be divided into an active part and a driven part, and the first guide rail and the second guide rail each have two active parts, and the driven parts are arranged between the two active parts. A driving part is provided on the active part, and connecting parts are provided between the active part and the driven part and between adjacent driven parts; when the heating element is adjusted in position, the driving part drives the active part to move to the desired position, and during the movement of the active part, the connecting part drives the driven part to move and ensures the uniform distribution of the heating element after the position adjustment; after the position of the heating element is adjusted, the uniform distribution of the heating element can be achieved by the contact between adjacent sliders on the first guide rail or the second guide rail.

[0009] Furthermore, option one of the connecting parts is: the connecting part is a connecting belt, which connects all the sliders on the first guide rail or the sliders on the second guide rail in series, and the lengths of the connecting belts between adjacent sliders on the first guide rail and the second guide rail are the same; when the heating element is adjusted in position, the connecting belt can achieve uniform distribution of the heating element by moving the active elements away from each other.

[0010] Furthermore, option two of the connecting member: the connecting member is a connecting block, the two ends of the connecting block are respectively a fixed end and a sliding end, and a sliding groove is provided on the sliding end of the connecting block; fixed terminals and sliding terminals are provided on both sides of the sliders of the first guide rail and the second guide rail, the fixed terminals and the fixed ends of the connecting block are rotatably connected, and the sliding terminals are movably provided in the sliding grooves on the sliding ends of the connecting block; when the heating elements are position adjusted, the connecting block can achieve uniform distribution of the heating elements by moving the active elements away from each other.

[0011] Furthermore, option three for the connecting part: the connecting part is a bellows, and a spring is nested inside the bellows; both ends of the bellows are fixed on the slider; when the heating element is adjusted in position, the active parts can be moved away from each other, and the bellows and the spring cooperate to achieve uniform distribution of the heating elements.

[0012] In order to solve the above technical problems, the second technical solution of the present invention is a further optimization of the first technical solution: a detachable connection is adopted between the heating element and the slider; the mounting frame includes a first linear moving component, the transmission direction of the first linear moving component is the same as the transmission direction of the feeding belt, and the moving end of the first linear moving component is connected to the first guide rail or the second guide rail; the distance between the first guide rail and the second guide rail is changed by the first linear moving component to realize the assembly setting of heating elements of different lengths.

[0013] In order to solve the above technical problems, the third technical solution of the present invention is a further optimization of the first technical solution: the oven includes a second linear moving component, and the transmission direction of the second linear moving component is the same as the transmission direction of the feed belt; there are several mounting brackets along the transmission direction of the feed belt, and each mounting bracket is controlled by an independent second linear moving component, and the position of the mounting bracket on the feed belt is controlled by the second linear moving component to realize the partitioned installation of the heating element.

[0014] In order to solve the above technical problems, the fourth technical solution of the present invention is a method for using a tunnel-type adjustable oven, characterized in that the tunnel-type adjustable oven described in the second technical solution is applied, and the method for using the tunnel-type adjustable oven comprises the following steps:

[0015] S1. Select an appropriate length of the heating element according to the size of the material to be processed and the process requirements, and adjust the distance between the first guide rail and the second guide rail through the first linear moving component to accommodate the assembly of the heating element;

[0016] S2, start the driving component and adjust the active component to the initial position;

[0017] S3. Based on the installation method of the heating element, confirm that the position of the driven element is synchronized with the active element through the connecting parts (such as connecting belts, connecting blocks or bellows); and adjust the wind speed and direction of the fan to ensure that the hot air can evenly cover the entire oven interior;

[0018] S4. Place the material to be processed on the feed belt and start the feed belt transmission system; after the material enters the oven, the heating element starts working to heat the material.

[0019] In order to solve the above technical problems, the fifth technical solution of the present invention is a method for using a tunnel-type adjustable oven, characterized in that the tunnel-type adjustable oven described in the third technical solution is applied, and the method for using the tunnel-type adjustable oven comprises the following steps:

[0020] S1. Select a suitable zoned installation method for the heating element according to the size of the material to be processed and the process requirements, and use the second linear moving component to control the mounting frame to move along the transmission direction of the feed belt, thereby achieving zoned installation of the heating element;

[0021] S2, start the driving component and adjust the active component to the initial position;

[0022] S3. Based on the installation method of the heating element, confirm that the position of the driven element is synchronized with the active element through the connecting parts (such as connecting belts, connecting blocks or bellows); and adjust the wind speed and direction of the fan to ensure that the hot air can evenly cover the entire oven interior;

[0023] S4. Place the material to be processed on the feed belt and start the feed belt transmission system; after the material enters the oven, the heating element starts working to heat the material.

[0024] The technical effects of the present invention are mainly reflected in the following aspects:

[0025] In traditional tunnel ovens, the heating elements are typically fixed in position and cannot be adjusted to meet different process requirements. The present invention mounts the heating elements on slide rails or other sliding mechanisms, allowing them to move freely on the mounting frame. This design allows users to quickly adjust the position and distribution of the heating elements based on the product's heating requirements (e.g., top heating, bottom heating, or all-around heating).

[0026] By setting up two parallel guide rails (the first guide rail and the second guide rail) and arranging multiple sliders on them, the heating element is fixed between the sliders on both sides; the dual guide rail design significantly improves the installation stability of the heating element and enhances the position adjustment capability. The concept of active and passive parts is introduced, in which the active part is responsible for driving and the passive part follows the movement. The active part is controlled to move along the guide rail by the driving component, and the passive part is driven to adjust the position synchronously in combination with the connecting parts (such as connecting belts, connecting blocks or bellows). This division of labor and cooperation design significantly improves the efficiency and accuracy of position adjustment.

[0027] The slider's stable connection is achieved through the expansion and contraction properties of the bellows and the elasticity of the spring. The bellows is a flexible component nested within a spring for additional elastic support. This design not only retains the spring's elasticity but also mitigates its limitations in high-temperature environments and precision. The bellows' flexibility allows it to adapt to changes in the arc, while the spring ensures the slider's relative position remains stable within the arc. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is an overall structural view of the present invention;

[0029] Figure 2 It is the internal structure diagram of the present invention;

[0030] Figure 3 for Figure 2 Structural drawing of the middle mounting frame;

[0031] Figure 4 for Figure 2 Schematic diagram of the structure of the connecting parts in the middle mounting frame adopting option one;

[0032] Figure 5 for Figure 2 Schematic diagram of the structure of the connecting parts in the middle mounting frame using option 2;

[0033] Figure 6for Figure 2 Schematic diagram of the structure of the connecting parts in the middle mounting frame using option three;

[0034] In the figure: 1. heating element; 2. feeding belt; 3. mounting frame; 31. first guide rail; 32. second guide rail; 33. slider; 41. driving element; 42. driven element; 431. connecting belt; 432. connecting block; 4321. fixed terminal; 4322. sliding terminal; 4323. slide groove; 433. bellows. DETAILED DESCRIPTION

[0035] The following is a further detailed description of the specific implementation methods of the present invention in conjunction with the accompanying drawings, so that the technical solutions of the present invention are easier to understand and grasp. In the embodiments, it should be understood that the orientation or positional relationship indicated by the terms "middle", "upper", "lower", "top", "right", "left end", "above", "back", "middle", etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, in this specific embodiment, if the connection or fixing method between the components is not particularly specified, the connection or fixing method can be fixed by bolts or pins commonly used in the prior art, or by pin connections, etc. Therefore, it will not be described in detail in this embodiment.

[0036] Example 1

[0037] See also Figure 1 、 Figure 2 This example discloses a tunnel-type adjustable oven, which has a heating element 1 and a fan. The oven includes a feeding belt 2, which is used to transport materials to be processed and runs through the oven; a mounting frame 3, which is arranged across both ends of the feeding belt 2 in the width direction, and the heating element 1 is slidably arranged on the mounting frame 3 (mounted on the mounting frame 3 by a slide rail or a similar sliding mechanism), and the length direction of the heating element 1 is parallel to the transmission direction of the feeding (the heating element 1 is distributed longitudinally); the installation position and installation method of the heating element 1 in the oven can be changed by sliding the heating element 1 on the mounting frame 3. The heating element 1 of the traditional tunnel-type oven is fixed in position and cannot adapt to different process requirements; the present invention can flexibly adjust the heat energy distribution by sliding the position of the heating element 1 to meet the heating requirements of various products.

[0038] See also Figure 2The design of the mounting frame 3 of the tunnel-type adjustable oven has been optimized: the mounting frame 3 comprises a first guide rail 31 and a second guide rail 32 arranged parallel to the feed transmission direction. Each of the first and second guide rails 31 and 32 is provided with a plurality of sliders 33. The heating element 1 is positioned between the sliders 33 of the first and second guide rails 31 and 32, forming a stable support structure. The introduction of the first and second guide rails 31 and 32 and the sliders 33 enhances the ability to adjust the position of the heating element 1 within the oven, while also improving the stability and ease of operation of the equipment.

[0039] See also Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 , the concept of an active part 41 and a driven part 42 is introduced, and the precise adjustment of the position of the heating element 1 is achieved through driving parts and connecting parts: the slider 33 can be divided into an active part 41 and a driven part 42, and the first guide rail 31 and the second guide rail 32 each have two active parts 41, and the driven parts 42 are each arranged between the two active parts 41, and a driving part (such as a motor, a cylinder, etc.) is provided on the active part 41, and the driving part is used to drive the active part 41 to move along the guide rail. Connecting parts are provided between the active part 41 and the driven part 42 and between adjacent driven parts 42; when the position of the heating element 1 is adjusted, the driving part drives the active part 41 to move to the desired position, and during the movement of the active part 41, the connecting part drives the driven part 42 to move and ensures the uniform distribution of the heating element 1 after the position adjustment; the active part 41 is responsible for driving, and the driven part 42 follows the movement. This division of labor and cooperation design significantly improves the efficiency and accuracy of position adjustment; the introduction of the connecting parts makes the movement between the sliders 33 more coordinated, avoiding the instability that may be caused by the independent movement of a single slider 33. After the position of the heating element 1 is adjusted, the uniform distribution of the heating element 1 can be achieved by the contact between the adjacent sliders 33 on the first guide rail 31 or the second guide rail 32; the contact mechanism between the sliders 33 ensures that the heating element 1 can be evenly distributed after adjustment, thereby further improving the stability and heating effect of the equipment.

[0040] See also Figure 4 , option 1 for connecting parts:

[0041] The connecting member is a connecting belt 431, which is a component made of a flexible or elastic material. The connecting belt 431 connects all the sliders 33 on the first guide rail 31 or the sliders 33 on the second guide rail 32 in series, and the active member 41 and the driven member 42 are connected by the connecting belt 431 to form an integral linkage system. The connecting belts 431 between the adjacent sliders 33 on the first guide rail 31 and the second guide rail 32 are of the same length; when the position of the heating element 1 is adjusted, the connecting belt 431 can be used to achieve uniform distribution of the heating element 1 by moving the active members 41 away from each other; by moving the active members 41 away from each other, the position of the driven member 42 is automatically adjusted by utilizing the tensile properties of the connecting belt 431, thereby ensuring uniform distribution of the heating element 1 throughout the oven.

[0042] When the position of the heating element 1 needs to be adjusted: the driving component starts and pushes the active component 41 to move to the target position along the guide rail; during the movement of the active component 41, the connecting belt 431 drives the driven component 42 to move synchronously to ensure the coordination of the entire slider 33 system; after the adjustment is completed, by moving the active components 41 away from each other, the connecting belt 431 will automatically stretch and adjust the position of the driven component 42, so that the heating element 1 is evenly distributed in the entire oven.

[0043] See also Figure 5 , option 2 for connecting parts:

[0044] The connecting member is a connecting block 432, which is a rigid or semi-rigid component. The two ends of the connecting block 432 are respectively a fixed end and a sliding end. The sliding end of the connecting block 432 is provided with a slide groove 4323; the slide groove 4323 is used to accommodate the sliding terminal 4322 and allow the sliding terminal 4322 to move therein. Both sides of the slider 33 of the first guide rail 31 and the second guide rail 32 are provided with a fixed terminal 4321 and a sliding terminal 4322. The fixed terminal 4321 and the fixed end of the connecting block 432 are rotatably connected (such as a pin or hinge). The sliding terminal 4322 is movably provided in the sliding groove on the sliding end of the connecting block 432 and can move freely within the slide groove 4323. The linkage between the sliders 33 is achieved through the fixed end and the sliding end at both ends of the connecting block 432, and the slide groove 4323 structure on the sliding end. When the position of the heating element 1 is adjusted, the active parts 41 can be moved away from each other, and the connecting block 432 can achieve uniform distribution of the heating element 1; when the position of the heating element 1 is adjusted, the active parts 41 can be moved away from each other, and the connecting block 432 can automatically adjust the position of the driven part 42, thereby ensuring uniform distribution of the heating element 1 in the entire oven.

[0045] When the position of the heating element 1 needs to be adjusted: the driving component is started, and the driving element 41 is pushed to move along the guide rail to the target position; during the movement of the driving element 41, the connecting block 432 drives the driven element 42 to move synchronously through the action of the fixed terminal 4321 and the sliding terminal 4322, ensuring the coordination of the entire slider 33 system; after the adjustment is completed, the positions of the driven elements 42 are automatically adjusted by allowing the driving elements 41 to move away from each other, so that the heating elements 1 are evenly distributed in the entire oven.

[0046] Referring to Figure 6 , the third selection scheme of the connecting piece:

[0047] The connecting piece is a bellows 433 (the bellows 433 is a flexible component with good folding and stretching performance), and a spring is nested on the inner side of the bellows 433, which provides additional elastic support for the bellows 433 and enhances its recovery ability. The two ends of the bellows 433 are fixedly arranged on the slider 33, forming a stable connection system. Through the stretching and contracting properties of the bellows 433 and the elastic effect of the spring, the linkage between the sliders 33 is realized. After the position of the heating element 1 is adjusted, the bellows 433 and the spring can be used to realize the uniform distribution of the heating element 1 by allowing the driving elements 41 to move away from each other; after the position of the heating element 1 is adjusted, the bellows 433 and the spring cooperate to automatically adjust the positions of the driven elements 42 by allowing the driving elements 41 to move away from each other, thereby ensuring the uniform distribution of the heating elements 1 in the entire oven.

[0048] When the position of the heating element 1 needs to be adjusted: the driving component is started, and the driving element 41 is pushed to move along the guide rail to the target position; during the movement of the driving element 41, the bellows 433 stretches and contracts with the displacement of the slider 33, and the spring plays a buffering and resetting role, driving the driven element 42 to move synchronously, ensuring the coordination of the entire slider 33 system. After the adjustment is completed, the bellows 433 will automatically stretch, and the spring will expand accordingly, thereby adjusting the positions of the driven elements 42, so that the heating elements 1 are evenly distributed in the entire oven.

[0049] The reason for using a bellows 433 and a spring in combination instead of using a spring alone is that when a spring is used alone, it may deflect or twist due to uneven force or lateral force, resulting in inaccurate position adjustment of the slider 33; the spring can only provide elastic restoring force in a single direction, and when faced with multi-dimensional displacement or vibration, it may experience insufficient response or instability. The slider 33 is connected to the spring through the bellows 433, and can adapt to the changes in the guide rail's transition from a straight area to an arc area. The flexible properties of the bellows 433 enable it to maintain good telescopic performance in the arc area, avoiding stress concentration problems caused by rigid connections; the elastic effect of the spring ensures that the relative position of the slider 33 in the arc area is more stable, reducing shaking or offset caused by changes in curvature.

[0050] Example 2

[0051] See also Figure 1 This example discloses a tunnel-type adjustable oven, specifically an optimization of the tunnel-type adjustable oven in Example 1. By introducing a detachable connection and a first linear movable component, flexible assembly and arrangement of heating elements 1 of different lengths are achieved, thereby enhancing the adaptability and versatility of the device. The details are as follows:

[0052] The heating element 1 and the slider 33 are connected in a detachable manner (such as a bolt connection, a snap connection or a quick-release interface) to facilitate quick replacement or adjustment of the heating element 1; the user is allowed to select heating elements 1 of different lengths, powers or types according to actual production needs, thereby meeting diverse product processing requirements. The mounting frame 3 includes a first linear moving component, the transmission direction of the first linear moving component is the same as the transmission direction of the feed belt 2, and the moving end of the first linear moving component is connected to the first guide rail 31 or the second guide rail 32; the distance between the first guide rail 31 and the second guide rail 32 is changed by the first linear moving component to achieve assembly settings of heating elements 1 of different lengths. By adjusting the guide rail spacing through the first linear moving component, support for heating elements 1 of different lengths is achieved, expanding the application range of the equipment.

[0053] Example 3

[0054] See also Figure 1 This example discloses a tunnel-type adjustable oven, which is specifically an optimization of the tunnel-type adjustable oven in Example 1. A second linear moving component is introduced, and the position of multiple mounting racks 3 is controlled by the second linear moving component, thereby realizing the partitioned installation function of the heating element 1. The details are as follows:

[0055] The oven includes a second linear moving component, and the transmission direction of the second linear moving component is the same as the transmission direction of the feed belt 2; a plurality of mounting brackets 3 are provided along the transmission direction of the feed belt 2, and each mounting bracket 3 is controlled by an independent second linear moving component, so that the mounting bracket 3 can be flexibly moved along the transmission direction of the feed belt 2. The position of the mounting bracket 3 on the feed belt 2 is controlled by the second linear moving component to realize the zoned installation of the heating element 1. In actual production, users can dynamically adjust the number and position of partitions according to the heating requirements of the product. For example: for products that require rapid preheating, a high-temperature partition can be set at the front end of the feed belt 2; for products that require long-term constant temperature treatment, a low-temperature partition can be set in the middle or rear end of the feed belt 2. By controlling the position of the mounting bracket 3 by the second linear moving component, the zoned installation of the heating element 1 is realized to meet the requirements of complex heating processes.

[0056] Example 4

[0057] This example discloses a method for using a tunnel-type adjustable oven. The tunnel-type adjustable oven described in Example 2 is suitable for processing products with a single heating mode. Flexible adaptation is achieved by adjusting the length of the heating element 1 and the distance between the guide rails. Setting up the oven requires only adjusting the distance between the guide rails and the position of the active element 41, making it suitable for small- to medium-scale production. The method includes the following steps:

[0058] S1. According to the size of the material to be processed and the process requirements (such as heating area, power distribution, etc.), select the appropriate length of the heating element 1, and adjust the distance between the first guide rail 31 and the second guide rail 32 through the first linear moving component to adapt to the assembly of the heating element 1; after ensuring that the guide rail spacing adjustment is completed, install the heating element 1 and firmly connect it to the slider 33.

[0059] S2, start the driving component and adjust the active member 41 to the initial position;

[0060] S3. According to the installation method of the heating element 1, confirm that the position of the driven element 42 is synchronized with the active element 41 through the connecting parts (such as the connecting belt 431, the connecting block 432 or the bellows 433); and adjust the wind speed and direction of the fan to ensure that the hot air can evenly cover the entire interior of the oven; the specific adjustment method includes: adjusting the fan speed to match the working power of the heating element 1; adjusting the angle of the wind direction plate so that the hot air can cover all surfaces of the material to be processed.

[0061] According to the specific heating requirements of the material to be processed, the position of the active part 41 is adjusted by the driving component: if concentrated heating of a certain area is required, the active part 41 is moved close to the area; if uniform heating is required, the active parts 41 are moved away from each other, and the position of the driven part 42 is automatically adjusted by the connecting part to ensure that the heating element 1 is evenly distributed.

[0062] S4. Place the material to be processed on the feed belt 2 and start the transmission system of the feed belt 2. After the material enters the oven, the heating element 1 starts working to heat the material.

[0063] Example 5

[0064] This example discloses a method for using a tunnel-type adjustable oven. The tunnel-type adjustable oven described in Example 3 is used to support complex process requirements, such as multi-stage heating or zoned temperature control, significantly improving the adaptability and flexibility of the equipment. The method includes the following steps:

[0065] S1. According to the size of the material to be processed and the process requirements (such as multi-stage heating, zoned temperature control, etc.), select a suitable zoned installation method for the heating element 1, and control the mounting frame 3 to move along the transmission direction of the feed belt 2 through the second linear moving component, so as to realize the zoned installation of the heating element 1; ensure that the distance between each zone meets the process requirements, and check the stability of the mounting frame 3.

[0066] S2. Start the driving component and adjust the active member 41 to the initial position; check whether the position of the active member 41 in each partition meets the set requirements and confirm its stability.

[0067] S3. Based on the installation method of the heating element 1, confirm that the position of the driven element 42 is synchronized with the active element 41 through a connecting member (such as a connecting belt 431, a connecting block 432, or a bellows 433). Adjust the fan speed and direction to ensure that the hot air can evenly cover the entire interior of the oven. Adjust the fan speed and direction to ensure that the hot air can evenly cover the material in each zone. Specific adjustment methods include: setting independent fan parameters for different zones to match their respective heating requirements; adjusting the angle of the wind direction plate so that the hot air can cover all surfaces of the material to be processed.

[0068] S4. Place the material to be processed on the feed belt 2 and start the transmission system of the feed belt 2. After the material enters the oven, the heating element 1 starts working to heat the material.

[0069] In addition, as common knowledge in the industry, the first linear moving component, the second linear moving component, the fan, and the method for controlling and using the fan mentioned above are common knowledge, so their principles and structures will not be described in detail.

[0070] Of course, the above are only typical examples of the present invention. In addition, the present invention may also have many other specific implementation methods. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A tunnel-type adjustable oven, the oven having a heating element and a fan, characterized in that: The oven comprises: A feeding belt, which is used to transport materials to be processed and runs through the oven; A mounting frame is provided across both ends of the feed belt in the width direction, and the heating element is slidably provided on the mounting frame, wherein the length direction of the heating element is parallel to the transmission direction of the feed belt; the installation position of the heating element in the oven is changed by sliding adjustment of the heating element on the mounting frame; The mounting frame includes a first guide rail and a second guide rail arranged parallel to the transmission direction of the feed belt, a plurality of sliders are provided on each of the first guide rail and the second guide rail, and the heating element is provided between the sliders of the first guide rail and the second guide rail; The slider is divided into an active part and a driven part. The first guide rail and the second guide rail are each provided with two active parts. The driven parts are each arranged between the two active parts. A driving part is provided on the active part. Connecting parts are provided between the active part and the driven part, as well as between adjacent driven parts. When the heating element is position-adjusted, the driving part drives the active part to move to the desired position. During the movement of the active part, the connecting part drives the driven part to move and ensures the uniform distribution of the heating element after the position adjustment.

2. The adjustable tunnel oven according to claim 1, characterized in that: The connecting member is a connecting belt, which connects all the sliders on the first guide rail or the sliders on the second guide rail in series, and the connecting belts between adjacent sliders on the first guide rail and the second guide rail have the same length; After the positions of the heating elements are adjusted, the connecting belt can be used to achieve uniform distribution of the heating elements by moving the active elements away from each other.

3. The adjustable tunnel oven according to claim 1, characterized in that: The connecting member is a connecting block, the two ends of the connecting block are respectively a fixed end and a sliding end, and a sliding groove is provided on the sliding end of the connecting block; Both sides of the sliders of the first guide rail and the second guide rail are provided with fixed terminals and sliding terminals, the fixed terminals are rotatably connected to the fixed end of the connecting block, and the sliding terminals are movably arranged in the sliding grooves on the sliding end of the connecting block; After the positions of the heating elements are adjusted, the connecting blocks can be used to achieve uniform distribution of the heating elements by moving the active elements away from each other.

4. The adjustable tunnel oven according to claim 1, characterized in that: The connecting member is a bellows, and a spring is nested inside the bellows; both ends of the bellows are fixedly arranged on the slider; After the positions of the heating elements are adjusted, the active elements can be moved away from each other, and the bellows and the spring cooperate to achieve uniform distribution of the heating elements.

5. The adjustable tunnel oven according to any one of claims 1 to 4, characterized in that: The heating element and the slider are detachably connected; The mounting frame includes a first linear moving component, the transmission direction of the first linear moving component is the same as the transmission direction of the feeding belt, and the moving end of the first linear moving component is connected to the first guide rail or the second guide rail; The distance between the first guide rail and the second guide rail is changed by the first linear moving component to achieve the assembly setting of heating elements of different lengths.

6. The adjustable tunnel oven according to any one of claims 1 to 4, characterized in that: The oven includes a second linear moving component, the transmission direction of the second linear moving component is the same as the transmission direction of the feeding belt; There are several mounting brackets arranged along the transmission direction of the feed belt, and each mounting bracket is controlled by an independent second linear moving component, which controls the position of the mounting bracket on the feed belt to realize the partitioned installation of the heating element.

7. A method for using a tunnel-type adjustable oven, characterized in that: Applicable to the tunnel-type adjustable oven according to any one of claims 1 to 5, the method of use comprises the following steps: S1. Select an appropriate length of the heating element according to the size of the material to be processed and the process requirements, and adjust the distance between the first guide rail and the second guide rail through the first linear moving component to accommodate the assembly of the heating element; S2, start the driving component and adjust the active component to the initial position; S3. According to the installation method of the heating element, confirm that the position of the driven element is synchronized with the active element through the connecting parts; and adjust the wind speed and direction of the fan to ensure that the hot air can evenly cover the entire oven interior; S4. Place the material to be processed on the feed belt and start the feed belt transmission system; after the material enters the oven, the heating element starts working to heat the material.

8. A method for using a tunnel-type adjustable oven, characterized in that: Applicable to the tunnel-type adjustable oven according to any one of claims 1 to 4 and claim 6, the method of use comprises the following steps: S1. Select a suitable zoned installation method for the heating element according to the size of the material to be processed and the process requirements, and use the second linear moving component to control the mounting frame to move along the transmission direction of the feed belt, thereby achieving zoned installation of the heating element; S2, start the driving component and adjust the active component to the initial position; S3. According to the installation method of the heating element, confirm that the position of the driven element is synchronized with the active element through the connecting parts; and adjust the wind speed and direction of the fan to ensure that the hot air can evenly cover the entire oven interior; S4. Place the material to be processed on the feed belt and start the feed belt transmission system; after the material enters the oven, the heating element starts working to heat the material.

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