Anti-blocking material frame device of heat treatment furnace

Abstract

The utility model discloses an anti-blocking material frame device of a heat treatment furnace, and belongs to the technical field of heat treatment furnace equipment. The anti-blocking material frame device of the heat treatment furnace comprises a baffle ring structure, the baffle ring structure comprises two baffle rings, the two baffle rings are located at the two ends of a furnace roller of the heat treatment furnace respectively, a baffle ring vacancy between the two baffle rings is matched with the reference position of the material frame, and the baffle ring vacancy is used for allowing the material frame to pass through so that the material frame can be located between the two baffle rings. According to the material frame clamping prevention device for the heat treatment furnace, the material frame is controlled between the two baffle rings through the baffle ring structure, so that the deviation of the material frame is corrected, the material frame clamping stagnation caused by the deviation of the material frame is avoided, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat treatment furnace equipment, in particular to an anti-stuck material frame device for a heat treatment furnace. Background Art

[0002] In the field of heat treatment furnace equipment, a material frame is placed on furnace rollers, which rotate to drive the material frame forward. However, factors such as thermal deformation and wear on the bottom of the material frame and the surface of the furnace rollers cause uneven force on the material frame as it moves forward, causing the material frame to deflect and become stuck in the furnace. Therefore, a device is urgently needed to prevent the material frame from getting stuck during production. Summary of the Invention

[0003] The utility model provides a heat treatment furnace anti-stuck frame device to solve the above problems. The technical solution is as follows:

[0004] In one aspect, a heat treatment furnace anti-jamming frame device is provided, the heat treatment furnace anti-jamming frame device comprising: a retaining ring structure;

[0005] The retaining ring structure includes two retaining rings, which are respectively located at both ends of the furnace roller of the heat treatment furnace. The retaining ring space between the two retaining rings matches the reference position of the material frame. The retaining ring space is used to pass the material frame so that the position of the material frame is between the two retaining rings.

[0006] In a possible implementation manner, any one of the two retaining rings includes a chamfered structure on a side close to the material frame.

[0007] In a possible implementation manner, any one of the two retaining rings is spaced a first distance from the material frame reference position.

[0008] In a possible implementation manner, the difference between the outer diameter of any one of the two retaining rings and the diameter of the furnace roller is within a first difference range.

[0009] In a possible implementation, any one of the two retaining rings includes a threaded hole half ring and a countersunk hole half ring, and the threaded hole half ring and the countersunk hole half ring are connected by screws.

[0010] In a possible embodiment, the heat treatment furnace anti-stuck material frame device also includes: a guide baffle structure; the guide baffle structure includes two guide baffles, and the two guide baffles are respectively located between two adjacent furnace rollers of the heat treatment furnace and are symmetrically distributed relative to the material frame reference position, and the guide baffle space between the two guide baffles matches the material frame reference position, and the guide baffle space is used to pass the material frame so that the position of the material frame is between the two guide baffles.

[0011] In a possible embodiment, any one of the two guide baffles includes a bracket base, an adjustment support plate, a roller bracket and a roller; the bracket base is used to support the structure of the guide baffle other than the bracket base; the adjustment support plate is used to connect the bracket base and the roller bracket; the adjustment support plate is also used to drive the roller bracket closer to or away from the material frame; the roller bracket is used to support the roller; and the roller is used to correct the position of the material frame.

[0012] In a possible implementation manner, the roller bracket includes an inclined structure on a side close to the material frame.

[0013] In a possible embodiment, the connection positions of the bracket base and the adjustment support plate respectively include two corresponding screw hole strips, so that the adjustment support plate drives the roller bracket to move within the corresponding movement range of the screw hole strips.

[0014] In a possible implementation manner, the roller of any one of the two guide baffles is spaced a second distance from the material frame reference position.

[0015] The technical solution provided by the utility model brings at least the following beneficial effects:

[0016] The technical solution provided by the utility model is that the retaining ring structure controls the material frame between the two retaining rings, corrects the deviation of the material frame, avoids the material frame from being stuck due to the deviation of the material frame, and thus improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a structural diagram of an anti-stuck frame device for a heat treatment furnace proposed by the utility model;

[0019] Figure 2 This is a top view of an anti-stuck frame device for a heat treatment furnace proposed by the utility model;

[0020] Figure 3 This is a structural diagram of a retaining ring proposed by the utility model;

[0021] Figure 4 This is a right view of an anti-stuck frame device for a heat treatment furnace proposed by the utility model;

[0022] Figure 5This is a structural diagram of a guide baffle proposed by the utility model;

[0023] Figure 6 It is a right side view of a guide baffle proposed by the utility model.

[0024] Figure numerals: retaining ring 1, furnace roller 2, material frame 3, guide baffle 4, countersunk half ring 5, threaded hole half ring 6, high-strength bolt 7, roller 8, bracket base 9, adjustment support plate 10, high-strength anti-slip bolt 11, roller bracket 12. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of this application clearer, the present invention will be described in further detail below with reference to the accompanying drawings.

[0026] It should be noted that the terms "first," "second," and so forth (if any) in the description of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of utility models consistent with certain aspects of this application.

[0027] In the field of heat treatment furnace equipment, the charge frame is a key component that supports workpieces during heat treatment. Its stable operation ensures production efficiency and product quality. Typically, the charge frame is placed on the furnace rollers, and the continuous rotation of the rollers ensures smooth movement of the charge frame within the furnace. However, during operation, various factors can cause uneven force and misalignment during the charge frame's movement. For one thing, the bottom of the charge frame and the surface of the rollers can thermally deform under prolonged high-temperature operation. This deformation not only changes the contact area and contact pressure distribution between the charge frame and the rollers, but can also lead to uneven clearance between them, affecting the stability and directionality of the charge frame during movement. Furthermore, with age, the surface of the rollers gradually wears, and the bottom of the charge frame can also be damaged by frequent friction with the rollers. This wear not only exacerbates the gap variation between the charge frame and the rollers but can also create an uneven surface, further increasing the risk of charge frame misalignment.

[0028] When the frame reaches the quenching station of the heat treatment furnace, the quenching process requires rapid frame movement within a short period of time to quickly immerse the workpiece in the quenching medium and achieve the desired cooling effect. This high-speed movement undoubtedly exacerbates the frame's deflection. Once the frame deflects, its edges or corners can easily collide with the furnace wall or other structures within the furnace, causing the frame to become stuck. This jam not only causes the quenching transfer to time out, delaying production progress, but can also damage the workpiece within the frame. For example, the workpiece may fail to achieve the expected hardness and strength requirements due to inability to immerse in the quenching medium in time, or may develop defects such as cracks and deformation due to collisions. Furthermore, frame jams can increase the downtime of the heat treatment furnace for maintenance, further reducing production efficiency and increasing production costs.

[0029] The utility model provides a device for preventing the material frame from being stuck in a heat treatment furnace, which can prevent the material frame from being stuck. Figure 1 , Figure 1 This is a schematic diagram of the structure of a heat treatment furnace anti-stuck material frame device provided by the present invention. The heat treatment furnace anti-stuck material frame 3 device includes a retaining ring structure; the retaining ring structure includes two retaining rings 1, each positioned at either end of a furnace roller 2 of the heat treatment furnace. The retaining ring space between the two retaining rings 1 matches the material frame reference position. The retaining ring space is used to allow the material frame 3 to pass through, so that the material frame 3 is positioned between the two retaining rings 1.

[0030] Can be combined Figure 2 The figure shows a top view of a heat treatment furnace's anti-stuck material frame device. Two retaining rings 1 are positioned at either end of a furnace roller 2. The retaining ring spacing is precisely designed based on the reference position of the material frame 3. That is, when the material frame 3 is placed on the furnace roller 2, it naturally falls between the two retaining rings 1. This ensures that the material frame 3 remains on a predetermined path during its advancement, effectively reducing deviation caused by uneven force or wear.

[0031] Under rapid movement or high-temperature conditions, the material frame 3 can easily become stuck due to deformation or friction with other components. The retaining ring structure provides a physical barrier for the material frame 3, preventing it from excessively deflecting or striking the furnace wall, thereby reducing the risk of sticking. The retaining ring structure provides a fixed path for the material frame 3, and the retaining ring space is designed with a certain degree of tolerance to accommodate material frames 3 of different sizes and shapes.

[0032] The utility model does not limit the material of the retaining ring 1, and any high-temperature resistant and wear-resistant material can be used to ensure that it can maintain good shape and performance under long-term high-temperature operation. In addition, the simple design of the retaining ring structure also facilitates daily inspection and maintenance, reducing downtime caused by equipment failure.

[0033] In one possible embodiment, any one of the two retaining rings 1 includes a chamfer structure on the side close to the material frame 3. The chamfer structure is a bevel treatment performed on the edge of the retaining ring 1, so that the original right-angle or sharp-angle edge becomes smooth and gradually transitions to the main part of the retaining ring 1. In the process of the material frame 3 moving along the furnace roller 2, its edge may come into contact with the retaining ring 1. If the edge of the retaining ring 1 is not chamfered, this contact may cause greater friction and wear, which not only accelerates the loss of the retaining ring 1 and the material frame 3, but also may affect the stability of the heat treatment process due to the heat and debris generated by friction. The introduction of the chamfer structure significantly reduces friction and wear by reducing the contact area and changing the contact angle, thereby extending the service life of the equipment.

[0034] In addition, the chamfered structure makes the edge of the retaining ring 1 smoother, allowing for a smoother transition when the material frame 3 passes through, reducing vibration and noise caused by sudden impact or jamming. It should be noted that the chamfered structure can also be provided on both sides of the retaining ring 1 to avoid wasting time when distinguishing the front and back sides during the installation of the retaining ring 1.

[0035] In one possible embodiment, any of the two retaining rings 1 is spaced a first distance from the material frame reference position. The material frame reference position is a preset, fixed point or area, which is used as a reference base when the material frame 3 moves in the heat treatment furnace. It is determined based on the internal structure of the heat treatment furnace, the size of the material frame 3 and the specific requirements of the production process. The two retaining rings 1 are respectively located at the two ends of the furnace roller 2, and each maintains a specific distance from the material frame reference position, that is, the first distance. The setting of the first distance ensures that the material frame 3 can remain on a relatively stable path during the movement, regardless of whether it is affected by thermal deformation, wear or other external factors. Exemplarily, the first distance can be 5 mm.

[0036] In one possible embodiment, the difference between the outer diameter of any of the two retaining rings 1 and the diameter of the furnace roller 2 is within a first difference range. That is, the retaining ring 1 is to be higher than the furnace roller 2, so that when the material frame 3 hits the retaining ring 1, the material frame 3 is corrected by a forward thrust and a return thrust. The embodiment of the present utility model does not limit the first difference range, as long as the retaining ring 1 is higher than the furnace roller 2 and the retaining rings 1 on the two adjacent furnace rollers 2 do not interfere with each other, for example, the retaining ring 1 is 50 mm higher than the furnace roller. In this case, the difference between the outer diameter of the retaining ring 1 and the diameter of the furnace roller 2 is 100 mm.

[0037] In one possible implementation, see Figure 3 As shown in the structural diagram of a retaining ring, any one of the two retaining rings 1 includes a threaded hole half ring 6 and a countersunk hole half ring 5, and the threaded hole half ring 6 and the countersunk hole half ring 5 are connected by screws.

[0038] The split design increases the complexity and functionality of the retaining ring 1, and also facilitates its installation and maintenance. The threaded hole half ring 6 includes a threaded hole for receiving a screw (the threaded hole half ring 6 and the countersunk hole half ring 5 are connected by a high-strength bolt 7 in the utility model) so as to tightly connect the threaded hole half ring 6 with the countersunk hole half ring 5. The design of the threaded hole allows the retaining ring 1 to be fixed to the furnace roller 2 or other supporting structure by means of a high-strength bolt 7, thereby ensuring its stability and reliability. The countersunk hole half ring 5 corresponds to the threaded hole half ring 6, and the countersunk hole half ring 5 usually includes a countersunk hole that matches the threaded hole. It is used to accommodate the head of the high-strength bolt 7, so that the high-strength bolt 7 does not protrude from the surface of the retaining ring 1 when connected, thereby maintaining the flatness and aesthetics of the retaining ring 1. At the same time, the design of the countersunk hole can also reduce the risk of the high-strength bolt 7 loosening or damage due to uneven force.

[0039] The high-strength bolts 7 connect the retaining ring 1, making it easy to operate and maintain. Specifically, during installation, the threaded hole half ring 6 and the countersunk hole half ring 5 are aligned and pressed together, and then secured with the high-strength bolts 7. Because the high-strength bolts 7 are self-locking, they ensure that the retaining ring 1 will not loosen or fall off due to uneven force during long-term use.

[0040] In one possible implementation, see Figure 4 The right view of a heat treatment furnace anti-stuck material frame device is shown, and the device also includes: a guide baffle structure; the guide baffle structure includes two guide baffles 3, and the two guide baffles 3 are respectively located between two adjacent furnace rollers 2 of the heat treatment furnace and are symmetrically distributed relative to the material frame reference position. The guide baffle space between the two guide baffles 3 matches the material frame reference position, and the guide baffle space is used to pass the material frame 3 so that the position of the material frame 3 is between the two guide baffles 3.

[0041] The two guide baffles 3 are respectively located between two adjacent furnace rollers 2 and are symmetrically distributed relative to the material frame reference position. This ensures that the material frame 3 can be evenly guided and supported during movement, thereby reducing the offset or jamming caused by uneven force. A specific space is formed between the two guide baffles 3, namely the guide baffle space. The guide baffle space matches the preset material frame reference position, which means that when the material frame 3 moves in the heat treatment furnace, it is guided and restricted by the two guide baffles 3. This ensures that the material frame 3 can move along a stable path, avoiding equipment damage or decreased production efficiency due to offset or jamming. At the same time, the guide baffles 3 also play a positioning role, so that the position of the material frame 3 in the furnace always remains within a predetermined range, that is, the material frame reference position.

[0042] In one possible implementation, see Figure 5 The structural diagram of a guide baffle shown in FIG. Figure 6 The right view of a guide baffle shown in the figure shows that any one of the two guide baffles 3 includes a bracket base 9, an adjustment support plate 10, a roller bracket 12 and a roller 8; the bracket base 9 is used to support the structure of the guide baffle 3 except the bracket base 9; the adjustment support plate 10 is used to connect the bracket base 9 and the roller bracket 12; the adjustment support plate 10 is also used to drive the roller bracket 12 to move closer to or away from the material frame 3; the roller bracket 12 is used to support the roller 8; the roller 8 is used to correct the position of the material frame 3.

[0043] The support base 9 is the cornerstone of the guide baffle structure, supporting all components of the guide baffle 3 except itself. The support base 9 must be designed to be strong and durable to ensure stability under the high temperatures and high loads of the heat treatment furnace. Optionally, the support base 9 can be constructed from two 10 mm thickened iron plates welded in a T-shape.

[0044] In addition to its connecting function, the adjustable support plate 10 can also be adjusted to move the roller bracket 12 (and the roller 8 mounted thereon) closer to or further away from the material frame 3. This adjustment allows the guide baffle 3 to adapt to material frames 3 of varying sizes and to any minor deformations that may occur during heat treatment. The roller bracket 12 supports the roller 8 and is typically designed to securely hold the roller 8 while allowing for free rotation. The shape and size of the roller bracket 12 may vary depending on the type, size, and installation requirements of the roller 8. For example, the roller bracket 12 may be welded from angle steel and 10 mm thickened iron plate. It may be secured to the adjustable support plate 10 by welding, bolting, or other methods.

[0045] Roller 8 is the most active component of the guide baffle structure, directly contacting the material frame 3 and correcting its position. Roller 8 is typically made of wear-resistant and high-temperature-resistant materials to ensure good performance and longevity over long-term use. Roller 8 can be designed in various shapes and sizes to accommodate different material frame 3 shapes and travel paths. For example, roller 8 has a diameter of 25 mm.

[0046] Optionally, the embodiment of the present invention does not limit the relative positions of the roller 8 and the roller bracket 12 . For example, the outer diameter of the roller 8 on the roller bracket 12 is 20 mm higher than the edge of the roller bracket 12 .

[0047] Exemplarily, when the material frame 3 moves in the heat treatment furnace, it contacts the rollers 8 on the guide baffle 3. The rollers 8 guide the material frame 3 to move along a predetermined path and correct its position through its rotation and friction.

[0048] In one possible embodiment, the roller bracket 12 includes an inclined structure on the side close to the material frame 3. The inclined structure is located on the side of the roller bracket 12 close to the material frame 3, that is, when the material frame 3 contacts the roller 8, it will first interact with this inclined portion. The inclined structure can provide a smooth transition surface, making it easier for the material frame 3 to gradually adjust the position of the material frame 3. When the material frame 3 contacts the inclined structure, due to the guiding effect of the inclined surface, the material frame 3 will move along a path that gradually approaches the center line of the roller 8 until it is fully in contact with the roller 8 and is corrected by it. Optionally, the embodiment of the present utility model does not limit the specific structure of the inclined structure. For example, it can be an inclined surface, a protrusion in the direction of the material frame 3, or a depression in the direction of the material frame 3.

[0049] In one possible embodiment, for example Figure 6 As shown, the connection positions of the bracket base 9 and the adjustment support plate 10 respectively include two corresponding screw hole strips, so that the adjustment support plate 10 drives the roller bracket 12 to move within the corresponding movement range of the screw hole strips.

[0050] The bracket base 9 is designed with two parallel screw hole strips that extend along a preset adjustment direction. The adjustment support plate 10 is also designed with corresponding holes that match the screw hole strips on the bracket base 9. These holes allow the adjustment support plate 10 to be fixed to the bracket base 9 via high-strength anti-slip bolts 11 and to move within the length of the screw hole strips. The design of the screw hole strips enables the adjustment support plate 10 to be precisely moved and adjusted along the direction of the hole strips. By changing the fixed position of the adjustment support plate 10 on the screw hole strips, the position of the roller bracket 12 and the roller 8 can be fine-tuned. The screw hole strips also provide additional stability, as the high-strength anti-slip bolts 11 can securely lock the adjustment support plate 10 at any position on the bracket base 9, preventing loosening due to vibration or temperature changes during heat treatment. The embodiment of the present invention does not limit the size of the screw hole strips. For example, the screw hole strips can be 50 mm long and 10 mm wide.

[0051] In one possible embodiment, the roller 8 of either of the two guide baffles 3 is spaced a second distance from the reference position of the material frame. The second distance is a specific value or range representing the relative distance between the roller 8 and the reference position of the material frame. The second distance and the first distance may or may not be equal, and this is not limited in the present embodiment. For example, the second distance may be 5 mm. The function of the second distance is similar to that of the first distance and will not be further described here.

[0052] It should be noted that the installation of the retaining ring structure and the guide baffle structure can be applied to a variety of heat treatment furnaces. The installation position of the retaining ring 1 and the guide baffle 3 can be independently adjusted in combination with the gap between the furnace rollers 2 of the heat treatment furnace and the width of the heat treatment material frame 3 to allow the heat treatment material frame 3 to pass smoothly.

[0053] In summary, the technical solution provided by the present invention uses a retaining ring structure to control the material frame between two retaining rings, correcting the material frame's deviation and avoiding the material frame's jamming caused by the deviation, thereby improving production efficiency. In addition, the device further corrects the deviation of the material frame by providing a guide baffle structure, thereby improving production efficiency.

[0054] Those skilled in the art will understand that Figures 1-6 The structure shown in the figure does not constitute a limitation on the structure of the present invention, and may include more or fewer components than shown in the figure, or combine certain components, or adopt a different component arrangement.

[0055] It should be understood that the term "plurality" used herein refers to two or more. "And / or" describes a relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. The character " / " generally indicates an "or" relationship between the associated objects.

[0056] The above are merely exemplary embodiments of the present invention and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A heat treatment furnace anti-stuck frame device, characterized in that: The heat treatment furnace anti-stuck frame device includes: a retaining ring structure; The retaining ring structure includes two retaining rings, which are respectively located at both ends of the furnace roller of the heat treatment furnace. The retaining ring space between the two retaining rings matches the reference position of the material frame. The retaining ring space is used to pass the material frame so that the position of the material frame is between the two retaining rings.

2. The heat treatment furnace anti-stuck frame device according to claim 1, characterized in that: Any one of the two retaining rings includes a chamfered structure on a side close to the material frame.

3. The heat treatment furnace anti-stuck frame device according to claim 1, characterized in that: Any one of the two retaining rings is spaced a first distance from a reference position of the material frame.

4. The heat treatment furnace anti-stuck frame device according to claim 1, characterized in that: A difference between an outer diameter of any one of the two retaining rings and a diameter of the furnace roller is within a first difference range.

5. The heat treatment furnace anti-stuck frame device according to claim 1, characterized in that: Any one of the two retaining rings comprises a threaded hole half ring and a countersunk hole half ring, and the threaded hole half ring and the countersunk hole half ring are connected by screws.

6. The heat treatment furnace anti-stuck frame device according to any one of claims 1 to 5, characterized in that: The heat treatment furnace anti-stuck frame device further includes: a guide baffle structure; The guide baffle structure includes two guide baffles, which are respectively located between two adjacent furnace rollers of the heat treatment furnace and are symmetrically distributed relative to the material frame reference position. The guide baffle space between the two guide baffles matches the material frame reference position. The guide baffle space is used to pass the material frame so that the position of the material frame is between the two guide baffles.

7. The heat treatment furnace anti-stuck frame device according to claim 6, characterized in that: Any one of the two guide baffles comprises a bracket base, an adjustment support plate, a roller bracket and a roller; The support base is used to support the structure of the guide baffle except the support base; The adjustment support plate is used to connect the bracket base and the roller bracket; The adjusting support plate is also used to drive the roller bracket to move closer to or away from the material frame; The roller bracket is used to support the roller; The roller is used to correct the position of the material frame.

8. The heat treatment furnace anti-stuck frame device according to claim 7, characterized in that: The roller bracket includes an inclined structure on a side close to the material frame.

9. The heat treatment furnace anti-stuck frame device according to claim 7, characterized in that: The connection positions of the bracket base and the adjustment support plate respectively include two corresponding screw hole strips, so that the adjustment support plate drives the roller bracket to move within the corresponding moving range of the screw hole strips.

10. The heat treatment furnace anti-stuck frame device according to claim 7, characterized in that: The roller of any one of the two guide baffles is spaced a second distance from the material frame reference position.

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