A feeding structure for a bogie-type resistance furnace

The design of the sliding and positioning mechanism enables precise positioning and automatic cleaning of the feeding structure of the trolley-type resistance furnace, solving the problems of low positioning accuracy and wear, improving heat treatment quality and production efficiency, and reducing maintenance costs.

CN224434975UActive Publication Date: 2026-06-30YIMING TOWER GROUP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YIMING TOWER GROUP CO LTD
Filing Date
2025-08-14
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The existing bogie-type resistance furnace feeding structure has low positioning accuracy, the mechanical limiting parts are prone to wear, resulting in uneven heat treatment quality and high maintenance costs. Manual positioning is unstable and it is difficult to meet the requirements of automation and high precision.

Method used

The feeding platform is precisely positioned by using a sliding mechanism and a positioning mechanism, with the cooperation of positioning columns and limit blocks. A sealing ring and a micro air pump are used to maintain stable air pressure. Combined with a magnetic plate and a cleaning block, the feeding platform is automatically cleaned to prevent the accumulation of foreign objects and dust.

Benefits of technology

It improves the positioning accuracy and stability of the feeding structure, reduces equipment wear, lowers maintenance costs, and ensures uniform heat treatment and production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model belongs to the field of resistance furnace technology, and particularly relates to a feeding structure for a trolley-type resistance furnace. It includes a resistance furnace and a furnace door movably installed on the top right side of the furnace. Burners are installed on both the front and back of the resistance furnace. A feeding device is provided on the right side of the furnace, comprising a sliding mechanism and a positioning mechanism. The sliding mechanism includes a feeding platform, a furnace door seat, a hook, a feeding track, and a discharging platform. In this trolley-type resistance furnace feeding structure, during the movement of the feeding platform, a cleaning block on the inner wall of the resistance furnace enters the sliding channel. The magnetic block inside the cleaning block attracts a magnetic plate, causing the slider to slide within the chute. The cleaning block and magnetic plate clean the sides of the feeding platform and the sliding channel during the movement of the feeding platform, preventing foreign objects and dust from accumulating on these surfaces and ensuring smooth feeding and discharging.
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Description

Technical Field

[0001] This utility model relates to the field of resistance furnace technology, specifically to a feeding structure for a bogie-type resistance furnace. Background Technology

[0002] In industrial production, bogie-type resistance furnaces are widely used as important heat treatment equipment in industries such as machinery manufacturing, metallurgy, and chemicals. They are mainly used for heat treatment processes such as annealing, quenching, and tempering of large workpieces. During the operation of a bogie-type resistance furnace, the feeding structure is a key component for achieving efficient and stable workpiece feeding into the furnace.

[0003] Currently, existing bogie-type resistance furnace feeding structures have several shortcomings in terms of positioning. On the one hand, traditional feeding structures often employ simple mechanical limits or manual assisted positioning methods. These methods have low accuracy and struggle to guarantee the precise position of the workpiece during feeding, leading to uneven heating within the furnace and affecting heat treatment quality. On the other hand, after prolonged use, mechanical limit components are prone to wear, causing positioning deviations to gradually increase. This not only reduces equipment production efficiency but also increases maintenance costs. Furthermore, manual assisted positioning relies heavily on operator experience and skills, exhibiting significant subjectivity and instability, and failing to meet the automation and high-precision requirements of modern industrial production. Therefore, developing a precise, stable, and reliable bogie-type resistance furnace feeding structure is of significant practical importance. Utility Model Content

[0004] The purpose of this invention is to provide a feeding structure for a bogie-type resistance furnace to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a feeding structure for a trolley-type resistance furnace, comprising a resistance furnace and a furnace door movably installed on the top right side of the resistance furnace, wherein burners are installed on both the front and back sides of the resistance furnace, and a feeding device is provided on the right side of the resistance furnace;

[0006] The feeding device includes a sliding mechanism and a positioning mechanism. The sliding mechanism includes a feeding platform, a furnace door seat, a hook, a feeding track, and a discharging platform. The feeding track is located at the bottom of the inside of the resistance furnace. The feeding platform is slidably connected to the surface of the feeding track. The furnace door seat is fixedly connected to the right side of the feeding platform. The hook is fixedly connected to the right side of the furnace door seat. The discharging platform is fixedly installed on the top of the feeding platform.

[0007] The positioning mechanism includes a fixed block, a positioning column, a positioning pipe, a second positioning tube, and a limiting block. The fixed block, the positioning pipe, and the second positioning tube are all fixedly installed on the front and back of the resistance furnace, and the positioning column is fixedly connected to the left side of the fixed block.

[0008] Preferably, the inside of the feeding platform is provided with a perforated pipe, and the top of the feeding platform is fixedly connected with an anti-slip plate.

[0009] Preferably, a sealing ring is fixedly connected to the outer surface of the positioning column, an air storage box is fixedly installed on the top of the positioning pipe, a micro air pump is installed on the surface of the air storage box, and a connecting pipe is fixedly connected to the top of the positioning pipe.

[0010] Preferably, the feeding track is provided with two tracks that extend to the outside of the resistance furnace, and the upper surface of the furnace door seat is provided with a slot that matches the bottom of the furnace door.

[0011] Preferably, a through positioning hole is provided on one side of the positioning pipe, the positioning hole penetrates the second positioning pipe at the same angle, and a through hole communicating with the positioning hole is provided on the upper surface of the second positioning pipe, and the limiting block is slidably connected to the inside of the through hole.

[0012] Preferably, the top of the front and rear sides of the feeding platform is provided with a sliding groove, a slider is slidably connected in the sliding groove, a magnetic plate is fixedly connected to the surface of the slider, and a sliding channel is provided in the middle of the front and rear sides of the feeding platform.

[0013] Preferably, a cleaning block is fixedly connected to the inner wall of the resistance furnace, and a magnetic block is disposed inside the cleaning block. The magnetic block attracts the side of the magnetic plate that is close to it.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The feeding structure of this trolley-type resistance furnace, during the movement of the feeding platform, will drive the positioning column to move through the fixed block, so that the positioning column enters the interior of the positioning pipe, and then pulls the limit block upward, so that the positioning column enters the interior of the second positioning tube. When the positioning columns on both sides have entered the interior of the positioning pipe and the second positioning tube, the positioning of the feeding platform is completed.

[0016] 2. The feeding structure of this trolley-type resistance furnace allows the cleaning blocks on the inner wall of the furnace to enter the sliding channel during the movement of the feeding platform. The magnetic blocks inside these blocks attract the magnetic plates, causing the slider to slide within the chute. The cleaning blocks and magnetic plates clean both sides of the feeding platform and the sliding channel during the movement of the feeding platform, preventing foreign objects and dust from accumulating on both sides of the feeding platform and inside the sliding channel, thus ensuring smooth feeding and discharging. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the resistance furnace of this utility model;

[0019] Figure 3 This is a schematic diagram of the bottom structure of the feeding platform of this utility model;

[0020] Figure 4 This is a schematic diagram of the overall structure of the feeding platform of this utility model;

[0021] Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point A in the middle.

[0022] In the diagram: 1. Resistance furnace; 2. Furnace door; 3. Burner; 4. Feeding platform; 401. Furnace door seat; 402. Hook; 403. Feeding track; 404. Discharge platform; 405. Perforated pipe; 406. Anti-slip plate; 5. Fixing block; 501. Positioning column; 502. Positioning pipe; 503. Sealing ring; 504. Gas storage box; 505. Miniature air pump; 506. Connecting pipe; 507. Positioning pipe II; 508. Limiting block; 6. Slide groove; 601. Magnetic plate; 602. Cleaning block; 603. Sliding channel. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1: To address the problems of low positioning accuracy in existing technologies, which makes it difficult to guarantee the accurate position of the workpiece during the feeding process, and the tendency for mechanical limiting components to wear out after prolonged use, leading to a gradual increase in positioning deviation, thus reducing equipment production efficiency and increasing maintenance costs. Please refer to... Figures 1-5 This utility model provides a technical solution:

[0025] A feeding structure for a trolley-type resistance furnace includes a resistance furnace 1 and a furnace door 2 movably installed on the top right side of the resistance furnace 1. Burners 3 are installed on both the front and back of the resistance furnace 1. The burners 3 generate high-temperature flames by burning fuel (such as natural gas, liquefied gas, etc.) to heat the workpieces or materials inside the furnace. A feeding device is provided on the right side of the resistance furnace 1. The model of the resistance furnace 1 is RT3-280-9.

[0026] The feeding device includes a sliding mechanism and a positioning mechanism. The sliding mechanism includes a feeding platform 4, a furnace door seat 401, a hook 402, a feeding track 403, and a discharging platform 404. The feeding track 403 is located at the bottom of the inside of the resistance furnace 1. The feeding platform 4 is slidably connected to the surface of the feeding track 403. The furnace door seat 401 is fixedly connected to the right side of the feeding platform 4. The hook 402 is fixedly connected to the right side of the furnace door seat 401. The discharging platform 404 is fixedly installed on the top of the feeding platform 4. A perforated pipe 405 is provided inside the discharging platform 404. An anti-slip plate 406 is fixedly connected to the top of the discharging platform 404. There are two feeding tracks 403, which extend to the outside of the resistance furnace 1. The upper surface of the furnace door seat 401 is provided with a slot that matches the bottom of the furnace door 2.

[0027] The positioning mechanism includes a fixed block 5, a positioning column 501, a positioning pipe 502, a second positioning tube 507, and a limiting block 508. The fixed block 5, the positioning pipe 502, and the second positioning tube 507 are all fixedly installed on the front and back of the resistance furnace 1, and the positioning column 501 is fixedly connected to the left side of the fixed block 5.

[0028] During the movement of the feeding platform 4, the positioning column 501 will be moved by the fixing block 5, so that the positioning column 501 enters the interior of the positioning pipe 502. Then, the limiting block 508 is pulled upward, so that the positioning column 501 enters the interior of the second positioning pipe 507. When the positioning columns 501 on both sides have entered the interior of the positioning pipe 502 and the second positioning pipe 507, the positioning of the feeding platform 4 is completed.

[0029] A sealing ring 503 is fixedly connected to the outer surface of the positioning column 501. The length between the two sealing rings 503 is the same as the length of the positioning pipe 502. The diameter of the two sealing rings 503 is the same as the diameter of the positioning hole. An air storage box 504 is fixedly installed on the top of the positioning pipe 502. A miniature air pump 505 is installed on the surface of the air storage box 504. The miniature air pump 505 is a OUOETYDC12V miniature air pump. A connecting pipe 506 is fixedly connected to the top of the positioning pipe 502. A through positioning hole is opened on one side of the positioning pipe 502. The positioning hole passes through the second positioning pipe 507 at the same angle. A through hole communicating with the positioning hole is opened on the upper surface of the second positioning pipe 507. A limiting block 508 is slidably connected to the inside of the through hole.

[0030] When the positioning post 501 drives the sealing ring 503 into the positioning hole, it cleans the inside of the positioning hole. When the positioning post 501 enters the positioning tube 507, the two sealing rings 503 will form a sealed space inside the positioning tube 502, thereby keeping the air pressure inside the positioning tube 502, the connecting tube 506 and the air tank 504 stable. During the movement of the positioning post 501, the toilet seat micro air pump 505 continuously sprays air onto the surface of the positioning post 501, so that the surface of the positioning post 501 will not be covered with dust.

[0031] Example 2: In order to maintain the stability of the feeding structure during long-term use and extend the service life of the feeding platform 4, this application provides a sliding groove 6 on the top of the front and rear sides of the feeding platform 4. A slider is slidably connected in the sliding groove, and a magnetic plate 601 is fixedly connected to the surface of the slider. A sliding channel 603 is provided in the middle of the front and rear sides of the feeding platform 4. A cleaning block 602 is fixedly connected to the inner wall of the resistance furnace 1. A magnetic block is provided inside the cleaning block 602. The magnetic block and the side of the magnetic plate 601 that is close to each other attract each other.

[0032] During the movement of the feeding platform 4, the cleaning block 602 on the inner wall of the resistance furnace 1 will enter the sliding channel 603. The magnetic block inside will attract the magnetic plate 601 to move continuously, thereby driving the slider to slide inside the slide groove 6. The cleaning block 603 and the magnetic plate 601 can clean the sides of the feeding platform 4 and the sliding channel 603 during the movement of the feeding platform 4, preventing foreign objects and dust from being present on the sides of the feeding platform 4 and inside the sliding channel 603, and ensuring smooth feeding and discharging.

[0033] Working principle: When heat treating the parts, first place the parts on the feeding platform 404. For tubular parts, they can be placed in the perforated tube 405 for fixation. For plate-shaped parts, they can be placed on the anti-slip plate 406. After placing the parts, push the hook 402 and the feeding platform 4 to make the feeding platform 4 slide along the feeding track 403 and push the feeding platform 4 into the inside of the resistance furnace 1. Then close the furnace door 2 so that the bottom of the furnace door 2 is engaged with the furnace door seat 401.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A feeding structure of a trolley type resistance furnace, comprising a resistance furnace (1) and a furnace door (2) movably mounted on the top right side of the resistance furnace (1), and a burner (3) is mounted on the front and back of the resistance furnace (1), characterized in that: A feeding device is provided on the right side of the resistance furnace (1); The feeding device includes a sliding mechanism and a positioning mechanism. The sliding mechanism includes a feeding platform (4), a furnace door seat (401), a hook (402), a feeding track (403), and a discharging platform (404). The feeding track (403) is located at the bottom of the inside of the resistance furnace (1). The feeding platform (4) is slidably connected to the surface of the feeding track (403). The furnace door seat (401) is fixedly connected to the right side of the feeding platform (4). The hook (402) is fixedly connected to the right side of the furnace door seat (401). The discharging platform (404) is fixedly installed on the top of the feeding platform (4). The positioning mechanism includes a fixed block (5), a positioning column (501), a positioning pipe (502), a second positioning pipe (507), and a limiting block (508). The fixed block (5), the positioning pipe (502), and the second positioning pipe (507) are all fixedly installed on the front and back of the resistance furnace (1). The positioning column (501) is fixedly connected to the left side of the fixed block (5).

2. The feeding structure of a bogie-type resistance furnace according to claim 1, characterized in that: The inside of the feeding platform (404) is provided with a perforated tube (405), and the top of the feeding platform (404) is fixedly connected with an anti-slip plate (406).

3. The feeding structure of a bogie-type resistance furnace according to claim 1, characterized in that: A sealing ring (503) is fixedly connected to the outer surface of the positioning column (501), an air storage box (504) is fixedly installed on the top of the positioning pipe (502), a micro air pump (505) is installed on the surface of the air storage box (504), and a connecting pipe (506) is fixedly connected to the top of the positioning pipe (502).

4. The feeding structure of a bogie-type resistance furnace according to claim 1, characterized in that: Two feed tracks (403) are provided and extend to the outside of the resistance furnace (1). The upper surface of the furnace door seat (401) is provided with a slot that matches the bottom of the furnace door (2).

5. The feeding structure of a bogie-type resistance furnace according to claim 1, characterized in that: The positioning pipe (502) has a through positioning hole on one side, and the positioning hole penetrates the positioning pipe (507) at the same angle. The upper surface of the positioning pipe (507) has a through hole that communicates with the positioning hole, and the limiting block (508) is slidably connected to the inside of the through hole.

6. The feeding structure of a bogie-type resistance furnace according to claim 1, characterized in that: The front and rear sides of the feeding platform (4) are provided with sliding grooves (6), and a slider is slidably connected in the sliding groove. A magnetic plate (601) is fixedly connected to the surface of the slider. A sliding channel (603) is provided in the middle of the front and rear sides of the feeding platform (4).

7. The feeding structure of a bogie-type resistance furnace according to claim 6, characterized in that: A cleaning block (602) is fixedly connected to the inner wall of the resistance furnace (1). A magnetic block is provided inside the cleaning block (602). The magnetic block attracts the magnetic plate (601) on the side closest to it.