A sintering device for enamel cookware
By introducing a positioning mechanism into the tunnel furnace, the rotation of the transport rollers drives the positioning mechanism to achieve centered positioning of the pot, solving the problem of uneven heating caused by pot misalignment, reducing energy consumption and improving sintering quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI RENZHONG SMART HOME PROD CO LTD
- Filing Date
- 2025-08-25
- Publication Date
- 2026-07-14
AI Technical Summary
In traditional tunnel ovens, cookware is prone to shifting during transport, resulting in uneven heating. This necessitates increasing the oven temperature and extending the operating time, leading to energy waste.
The positioning mechanism includes a transport platform, transport rollers, a centering plate, a positioning column, and bevel gear meshing transmission. The rotation of the transport rollers drives the positioning mechanism to achieve the centering positioning of the pot and ensure uniform heating.
The positioning mechanism, which eliminates the need for an additional motor, significantly reduces energy consumption, ensures that the cookware centerline coincides with the center of the tunnel furnace, improves the consistency of enamel layer sintering quality, and reduces maintenance difficulty.
Smart Images

Figure CN224494340U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of thermal equipment technology, and in particular to a sintering device for enamel cookware. Background Technology
[0002] The sintering device for enamel cookware (tunnel furnace) is a continuous heat treatment equipment designed specifically for the production of enamel cookware. Its main body is a long, tunnel-shaped furnace body. Inside, the cookware blanks coated with enamel glaze are continuously transported through heating sections with different temperature ranges by a conveying mechanism (such as a conveyor belt or roller conveyor).
[0003] During operation, the furnace precisely controls the temperature of each stage (typically including preheating, sintering, and cooling) according to the requirements of the enamel sintering process. This allows the enamel on the cookware surface to melt at high temperatures and react chemically with the metal blank, forming a firmly bonded enamel layer. This endows the cookware with properties such as corrosion resistance, high-temperature resistance, and easy cleaning. As a key piece of equipment in enamel cookware production, the tunnel furnace, with its continuous operation, enables large-scale, high-efficiency production, ensuring the stability and consistency of product quality.
[0004] In traditional tunnel furnaces, cookware is prone to shifting during transport. Due to the shape of the cookware itself, such as irregularities in the edges of the pot or asymmetrical weight of the pot handles, lateral forces are generated as the cookware moves with the conveyor rollers, causing it to deviate from the center position and resulting in uneven heating. To ensure sintering quality, the overall furnace temperature needs to be increased, which requires extending the boiler's operating time and thus wasting energy. Therefore, an enamel cookware sintering device is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides an enamel cookware sintering device, which aims to improve the problem in the existing technology of traditional tunnel furnaces where the shape of the cookware itself causes conveying deviation and uneven heating, which in turn requires increasing the furnace temperature and extending the service time, resulting in energy waste.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: an enamel cookware sintering device, comprising a tunnel furnace, a transport platform being provided at the front of the tunnel furnace, a transport roller being rotatably connected to the inner wall of the transport platform, and a positioning mechanism being provided at the top of the transport platform;
[0007] The positioning mechanism includes a centering plate, a connecting assembly on the inner wall of the transport platform, a rotating plate rotatably connected to the top of the inner wall of the transport platform, a fixed column fixedly connected to the top of the rotating plate, a partition rotatably connected to the outer arc surface of the fixed column, a positioning column fixedly connected to the side of the centering plate near the transport roller, a horizontal plate slidably connected to the outer wall of the positioning column, a moving block fixedly connected to the side of the horizontal plate near the transport roller, a contact plate provided on the side of the moving block near the transport roller, a threaded rod threadedly connected to the inner wall of the moving block, a clamping plate rotatably connected to the rear of the threaded rod, and an installation mechanism provided on the side of the moving block near the transport roller.
[0008] As a further description of the above technical solution:
[0009] The connecting assembly includes a bevel gear one fixedly connected to the bottom of the rotating plate, a bevel gear two meshing with the bottom of the bevel gear one, and multiple sets of transport rollers are provided, with the center of the bevel gear two fixedly connected to the end of one set of transport rollers.
[0010] As a further description of the above technical solution:
[0011] A telescopic rod is fixedly connected to the top of the transport platform, and the side of the center plate away from the transport roller is fixedly connected to the movable end of the telescopic rod.
[0012] As a further description of the above technical solution:
[0013] A guide post is fixedly connected to the front interior of the movable block, and the inner wall of the clamping plate is slidably connected to the outer arc surface of the guide post.
[0014] As a further description of the above technical solution:
[0015] The rear semi-circular surface of the clamping plate contacts the outer arc surface of the positioning post, and the side of the partition plate near the transport roller is hinged to the inner side wall of the centering plate.
[0016] As a further description of the above technical solution:
[0017] The installation mechanism includes a connecting plate fixedly connected to the outer wall of the movable block. A positioning plate is detachably installed on the inner wall of the connecting plate. Bolts are in contact with the inner wall of the connecting plate. A screw hole is provided on the top of the positioning plate.
[0018] As a further description of the above technical solution:
[0019] The positioning plate has a T-shaped cross-section.
[0020] As a further description of the above technical solution:
[0021] The bottom of the bolt is threaded into the inner wall of the bolt hole.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, through the mutual cooperation between the structure such as the transport platform, tunnel furnace, transport roller and its positioning mechanism, the connecting component converts the rotation of the transport roller into positioning power. By using the meshing transmission of bevel gear one and bevel gear two, the symmetrical movement of the center plate is realized. No additional motor or drive device is required throughout the process, which significantly reduces energy consumption. It ensures that the center line of the cookware coincides with the heating center of the tunnel furnace, effectively solves the problem of uneven heating caused by misalignment, and improves the consistency of the sintering quality of the enamel layer.
[0024] 2. In this utility model, through the mutual cooperation between the installation mechanism and other structures, the T-shaped positioning plate and the T-shaped groove of the connecting plate cooperate with each other, combined with the quick fixing structure of the bolts, so that the replacement of the contact plate does not require complicated tools and can be completed by a single person. The limiting design of the rear support surface ensures that the positioning plate is installed in a precise position, avoiding the impact of assembly errors on the positioning effect, and greatly reducing the operation difficulty for maintenance personnel. Attached Figure Description
[0025] Figure 1 This is a three-dimensional schematic diagram of an enamel cookware sintering device proposed in this utility model.
[0026] Figure 2 This is a cross-sectional internal schematic diagram of the transport platform of the sintering device for enamel cookware proposed in this utility model.
[0027] Figure 3 This is a schematic diagram showing the center plate and its telescopic rod of a sintering device for enamel cookware proposed in this utility model.
[0028] Figure 4 This is a split schematic diagram of the positioning mechanism of the sintering device for enamel cookware proposed in this utility model;
[0029] Figure 5 This is a split diagram of the installation mechanism of the sintering device for enamel cookware proposed in this utility model;
[0030] Figure 6 This is a schematic diagram showing the horizontal plate and its moving block of an enamel cookware sintering device proposed in this utility model.
[0031] Legend:
[0032] 1. Tunnel furnace; 2. Transport platform; 3. Positioning mechanism; 301. Centering plate; 302. Moving block; 303. Contact plate; 304. Telescopic rod; 305. Connecting assembly; 3051. Bevel gear one; 3052. Bevel gear two; 306. Rotating plate; 307. Fixed column; 308. Threaded rod; 309. Guide column; 310. Positioning column; 311. Clamping plate; 312. Horizontal plate; 313. Partition plate; 4. Transport roller; 5. Installation mechanism; 501. Connecting plate; 502. Bolt; 503. Positioning plate; 504. Screw hole. Detailed Implementation
[0033] 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.
[0034] Reference Figures 1-3 One embodiment of this utility model provides an enamel cookware sintering device, including a tunnel furnace 1. A transport platform 2 is provided at the front of the tunnel furnace 1. A transport roller 4 is rotatably connected to the inner wall of the transport platform 2. A motor is provided on the left side of the transport roller 4 to drive the transport roller 4 to rotate, thereby transporting the enamel cookware and sintering it through the tunnel furnace 1. A positioning mechanism 3 is provided at the top of the transport platform 2. The positioning mechanism 3 can center the enamel cookware to ensure that it is in the middle position during transportation, thereby improving the heating effect.
[0035] Reference Figure 2 , Figure 4 and Figure 6The positioning mechanism 3 includes a centering plate 301, of which two sets are provided. A connecting component 305 is provided on the inner wall of the transport table 2, allowing the centering operation to be performed without additional power. A rotating plate 306 is rotatably connected to the top of the inner wall of the transport table 2, and a fixed column 307 is fixedly connected to the top of the rotating plate 306. The rotation of the rotating plate 306 drives the fixed column 307 to rotate synchronously. A partition plate 313 is rotatably connected to the outer arc surface of the fixed column 307, causing the partition plate 313 to move due to the rotation of the fixed column 307. Multiple positioning columns 310 are fixedly connected to the side of the centering plate 301 closest to the transport roller 4, and the cross-section of each positioning column 310 is T-shaped to prevent detachment. The positioning column 310 has a horizontal plate 312 slidably connected to its outer wall. A moving block 302 is fixedly connected to the side of the horizontal plate 312 near the conveyor roller 4. The two move along the same trajectory. A contact plate 303 is provided on the side of the moving block 302 near the conveyor roller 4. Two sets of contact plates 303 are provided so that the enamel pot can be centered. A threaded rod 308 is threadedly connected to the inner wall of the moving block 302. A clamping plate 311 is rotatably connected to the rear of the threaded rod 308. The rotation of the threaded rod 308 causes the clamping plate 311 to move. The rear of the clamping plate 311 is set in a semi-circular shape. An installation mechanism 5 is provided on the side of the moving block 302 near the conveyor roller 4. The contact plate 303 can be disassembled and replaced through the installation mechanism 5.
[0036] Reference Figures 3-4 and Figure 6 The connecting assembly 305 includes a bevel gear 3051 fixedly connected to the bottom of the rotating plate 306. Multiple sets of connecting assemblies 305 are provided, located on the left and right sides of the transport roller 4. A bevel gear 3052 meshes with the bottom of the bevel gear 3051. Multiple sets of transport rollers 4 are provided, with the center of the bevel gear 3052 fixedly connected to the end of one set of transport rollers 4. The rotation of the transport roller 4 causes the bevel gear 3052 to rotate, thereby causing the bevel gear 3051 to rotate, which in turn drives the fixed column 307 to move. A telescopic rod 304 is fixedly connected to the top of the transport platform 2. The centering plate 301 is located away from the transport roller 4. One side of the conveyor roller 4 is fixedly connected to the movable end of the telescopic rod 304. The telescopic rod 304 guides the movement of the centering plate 301. The front side of the moving block 302 is fixedly connected to the guide post 309. The inner wall of the clamping plate 311 is slidably connected to the outer arc surface of the guide post 309. The guide post 309 guides the clamping plate 311. The rear semi-circular surface of the clamping plate 311 contacts the outer arc surface of the positioning post 310. When the two are in contact, the horizontal plate 312 is fixed by friction. The side of the partition plate 313 near the conveyor roller 4 is hinged to the inner side wall of the centering plate 301. The hinged setting avoids motion interference.
[0037] Reference Figure 5The installation mechanism 5 includes a connecting plate 501 fixedly connected to the outer wall of the movable block 302. A positioning plate 503 is detachably installed on the inner wall of the connecting plate 501. A T-shaped groove is opened inside the connecting plate 501. A bolt 502 contacts the inner wall of the connecting plate 501. A screw hole 504 is opened on the top of the positioning plate 503. The cross-section of the positioning plate 503 is set in a T-shape. The T-shape facilitates positioning. The T-shaped groove is not through. There is a plate support at the rear, so that the positioning plate 503 will not move after moving to a certain extent. The bottom of the bolt 502 is threadedly connected to the inner wall of the screw hole 504. When the positioning plate 503 moves to a certain position, the screw hole 504 and the bolt 502 are aligned and can be threadedly connected to fix it.
[0038] Working principle: The core power of the positioning mechanism 3 comes from the rotation of the transport roller 4, which does not require an additional power source. When the transport roller 4 rotates, the bevel gear 3052 fixed at its end rotates synchronously, and the bevel gear 3051 meshing with the bevel gear 3052 rotates accordingly, thereby driving the rotating plate 306 and the fixed column 307 at the top to rotate. The fixed column 307 pushes the two sets of centering plates 301 to move through the hinged partition 313. The telescopic rod 304 at the top of the transport table 2 provides guidance for the centering plate 301, ensuring that it moves symmetrically in the horizontal direction.
[0039] When the centering plate 301 moves, the positioning post 310 on one side drives the horizontal plate 312 to move synchronously. The moving block 302 and contact plate 303 connected to the horizontal plate 312 then approach the enamel cookware. When the contact plate 303 contacts the edge of the cookware, friction pushes the cookware towards the center position, completing the centering positioning. Through the linkage of the positioning mechanism 3, the enamel cookware always maintains a centered state during transportation, ensuring uniform heating in the tunnel furnace 1 and improving the sintering quality. When the length of the enamel cookware changes... During the process, the threaded rod 308 on the inner wall of the rotating moving block 302, under the limiting action of the guide post 309, drives the clamping plate 311 to move forward, so that the semi-annular inner wall of the clamping plate 311 is not clamped with the outer arc surface of the positioning post 310, thereby allowing the movable contact plate 303 to be adjusted to accommodate enamel cookware of different lengths. After adjustment, the threaded rod 308 is rotated in the opposite direction so that the clamping plate 311 contacts and clamps with the positioning post 310, and the horizontal plate 312 is fixed by using friction.
[0040] The mounting mechanism 5 is used for disassembling and replacing the contact plate 303: insert the T-shaped positioning plate 503 along the T-shaped groove of the connecting plate 501 until the rear support surface is limited. At this time, the screw hole 504 of the positioning plate 503 is aligned with the bolt 502 of the connecting plate 501. Tighten the bolt 502 to complete the fixation. Disassembly can be done by reversing the operation, which makes it convenient to replace the new contact plate 303 according to the size of the cookware.
[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A sintering apparatus for enamel cookware, comprising a tunnel furnace (1), characterized in that: The tunnel furnace (1) is provided with a transport platform (2) at the front, and a transport roller (4) is rotatably connected to the inner wall of the transport platform (2). A positioning mechanism (3) is provided on the top of the transport platform (2). The positioning mechanism (3) includes a centering plate (301), a connecting assembly (305) is provided on the inner wall of the transport platform (2), a rotating plate (306) is rotatably connected to the top of the inner wall of the transport platform (2), a fixing column (307) is fixedly connected to the top of the rotating plate (306), a partition plate (313) is rotatably connected to the outer arc surface of the fixing column (307), and a positioning column (310) is fixedly connected to the side of the centering plate (301) near the transport roller (4). A horizontal plate (312) is slidably connected to the outer wall of the conveyor roller (4). A movable block (302) is fixedly connected to the side of the horizontal plate (312) near the conveyor roller (4). A contact plate (303) is provided on the side of the movable block (302) near the conveyor roller (4). A threaded rod (308) is threadedly connected to the inner wall of the movable block (302). A clamping plate (311) is rotatably connected to the rear of the threaded rod (308). An installation mechanism (5) is provided on the side of the movable block (302) near the conveyor roller (4).
2. The sintering apparatus for enamel cookware according to claim 1, characterized in that: The connecting assembly (305) includes a bevel gear one (3051) fixedly connected to the bottom of the rotating plate (306), and a bevel gear two (3052) meshing with the bottom of the bevel gear one (3051). The transport roller (4) is provided with multiple sets, and the center of the bevel gear two (3052) is fixedly connected to the end of one set of the transport rollers (4).
3. The sintering apparatus for enamel cookware according to claim 1, characterized in that: The top of the transport platform (2) is fixedly connected to a telescopic rod (304), and the side of the center plate (301) away from the transport roller (4) is fixedly connected to the movable end of the telescopic rod (304).
4. The sintering apparatus for enamel cookware according to claim 1, characterized in that: The front side of the movable block (302) is fixedly connected to a guide post (309), and the inner wall of the clamping plate (311) is slidably connected to the outer arc surface of the guide post (309).
5. The sintering apparatus for enamel cookware according to claim 1, characterized in that: The rear semi-circular surface of the clamping plate (311) contacts the outer arc surface of the positioning post (310), and the partition plate (313) is hinged to the inner side wall of the centering plate (301) on the side near the transport roller (4).
6. The sintering apparatus for enamel cookware according to claim 1, characterized in that: The installation mechanism (5) includes a connecting plate (501) fixedly connected to the outer wall of the movable block (302). The inner wall of the connecting plate (501) is detachably fitted with a positioning plate (503). The inner wall of the connecting plate (501) is in contact with a bolt (502). The top of the positioning plate (503) is provided with a screw hole (504).
7. The sintering apparatus for enamel cookware according to claim 6, characterized in that: The cross-section of the positioning plate (503) is T-shaped.
8. The sintering apparatus for enamel cookware according to claim 6, characterized in that: The bottom of the bolt (502) is threaded into the inner wall of the screw hole (504).