Combustion furnace fire box plate seaming die
By setting reinforcing plates and guiding structures in the die-cutting mold of the combustion furnace firebox plate, the problem of die cracking was solved, and the crack resistance and service life of the die were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-03-17
AI Technical Summary
Traditional methods often result in cracked dies when machining notches in the combustion furnace firebox plates, leading to low work efficiency and short lifespan.
A combustion furnace firebox plate seam mold was designed. By setting a reinforcing plate outside the die and installing a guide structure on the upper and lower templates, combined with elastic columns and pressure blocks, the thickness and crack resistance of the die are improved.
It improves the crack resistance of the die, extends the service life of the die, and improves processing efficiency and the accuracy of notch position.
Smart Images

Figure CN223997056U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of seam die technology, and in particular to a seam die for a combustion furnace firebox plate. Background Technology
[0002] After harvesting, tobacco needs to be placed in a curing barn for drying. The curing barn requires a combustion furnace. The furnace firebox plate is shaped like a rectangular tray with outward-facing flanges on all sides, and a notch needs to be made on one side wall and at the flange. The traditional method for machining the notch in the furnace firebox plate is to mark lines at corresponding positions and then cut, which is inefficient. Therefore, a die for the seam was developed; however, because the surface of the die needs to have curved positioning grooves, the die is prone to cracking at the grooves after a certain period of operation. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a combustion furnace firebox plate seam mold that can improve the crack resistance of the die and increase the service life of the die.
[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is a combustion furnace firebox plate seam mold, including a cutting tool, a lower template and a concave mold installed on the lower template; a reinforcing plate is also installed on the lower template; the reinforcing plate is provided with a clearance groove that cooperates with the lower outer wall of the concave mold.
[0005] Furthermore, it also includes an upper template, an elastic column, a pressure plate, and a pressure block; the stud passes through the pressure plate and the elastic column and is threadedly connected to the upper template; the pressure block is fixed to the lower end of the pressure plate; the pressure block has a slot for the tool to pass through; the lower surface of the pressure block is provided with a limiting groove that mates with the upper surface of the die.
[0006] Furthermore, the cutting edge at the lower end of the tool is inclined downwards at the end furthest from the workpiece.
[0007] Furthermore, a tool mounting plate is installed at the lower part of the upper template; the stud passes through the upper template and the mounting plate and is threadedly connected to the tool.
[0008] Furthermore, guide posts are installed on the lower template, and guide holes are provided at corresponding positions on the upper template.
[0009] Furthermore, a guide sleeve is installed inside the guide hole; the guide post and the guide sleeve are in sliding fit.
[0010] Furthermore, the reinforcing plate is equipped with an inclined feed rack; the upper surface of the feed rack is coplanar with the groove section on the die used to support the workpiece.
[0011] Furthermore, a base plate is fixedly installed on the reinforcing plate, and the feed rack is installed on the base plate.
[0012] Furthermore, both the die cavity and the lower die plate are provided with a blanking port.
[0013] Furthermore, limit plates are installed on both sides of the feed rack.
[0014] The beneficial effects of this utility model are:
[0015] This application improves the crack resistance and lifespan of the die by increasing the thickness of the die and adding a reinforcing plate to the outside of the die. Attached Figure Description
[0016] Figure 1 This is a side view of the overall structure of the embodiment;
[0017] Figure 2 This is a cross-sectional view of the overall structure of the embodiment;
[0018] Figure 3 for Figure 2 Enlarged view of a local structure in the middle;
[0019] Figure 4 This is a front view of the overall structure of the embodiment;
[0020] Figure 5 This is a cross-sectional view of the overall structure in the occlusal state of the embodiment.
[0021] In the diagram, 1-lower template, 2-reinforcing plate, 3-die, 4-pressure block, 5-tool, 6-tool mounting plate, 7-upper template, 8-pressure plate, 9-elastic column, 10-guide sleeve, 11-guide column, 12-feed rack, 13-bottom plate, 14-dropout port, 15-limiting plate. Detailed Implementation
[0022] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0023] Example
[0024] A type of die for sealing the firebox plate of a combustion furnace, such as Figure 1-5 As shown, it includes a cutting tool 5, a lower template 1, and a die 3 mounted on the lower template 1; a reinforcing plate 2 is also mounted on the lower template 1; the reinforcing plate 2 has a clearance groove that mates with the lower outer wall of the die 3.
[0025] The above-mentioned combustion furnace firebox plate seam mold can improve the crack resistance and life of the die 3 by increasing the thickness of the die 3 and setting a reinforcing plate 2 outside the die 3.
[0026] Specifically, to improve the accuracy of the notch position and the punching quality, the system also includes an upper template 7, an elastic column 9, a pressure plate 8, and a pressure block 4. A stud passes through the pressure plate 8 and the elastic column 9 and is threadedly connected to the upper template 7. The pressure block 4 is fixed to the lower end of the pressure plate 8. A slot for the cutting tool 5 to pass through is provided on the pressure block 4. A limiting groove that mates with the upper surface of the die 3 is provided on the lower surface of the pressure block 4. During operation, the press moves the upper template 7 downwards, thereby moving the elastic column 9, the pressure plate 8, the pressure block 4, and the cutting tool 5 downwards. When the pressure block 4 descends to contact the workpiece surface, it squeezes the workpiece. The upper template 7 continues to descend, the elastic column 9 undergoes elastic deformation, and the cutting tool 5 continues to descend, punching the workpiece.
[0027] Specifically, the cutting edge of the lower end of the tool 5, away from the workpiece, is inclined downwards, such as... Figure 3 As shown. During punching, the left side of the tool 5 contacts the workpiece first, forming a process of gradually punching from the edge of the workpiece inward.
[0028] Specifically, a tool mounting plate 6 is installed at the lower part of the upper template 7; the stud passes through the upper template 7 and the mounting plate 6 and is threadedly connected to the tool 5.
[0029] Specifically, guide pillars 11 are installed on the lower template 1, and guide holes are opened at corresponding positions on the upper template 7.
[0030] Specifically, a guide sleeve 10 is installed inside the guide hole; the guide post 11 is in sliding fit with the guide sleeve 10.
[0031] Specifically, a feed rack 12 with an inclined surface is installed on the reinforcing plate 2; the upper surface of the feed rack 12 is coplanar with the groove section on the die 3 used to support the workpiece.
[0032] Specifically, a base plate 13 is fixedly installed on the reinforcing plate 2, and the feed rack 12 is installed on the base plate 13.
[0033] Specifically, both the die cavity 3 and the lower template 1 are provided with a blanking port 14.
[0034] Specifically, limit plates 15 are installed on both sides of the feed rack 12. This prevents the workpiece from coming into contact with the inner walls of the two limit plates 15 when the workpiece is in use.
[0035] The working principle of this utility model:
[0036] During operation, the workpiece is placed on the feed rack 12, with both sides of the workpiece contacting the inner walls of the two limiting plates 15, ensuring that the flange to be opened is engaged in the limiting groove of the die. The press is controlled to move the upper template 7 downward, thereby moving the elastic column 9, pressure plate 8, pressure block 4, and cutter 5 downward. When the pressure block 4 descends to contact the workpiece surface, it stops descending. The upper template 7 continues to descend, the elastic column 9 undergoes elastic deformation, the pressure block 4 squeezes the workpiece to prevent it from moving, and the cutter 5 continues to descend, punching the workpiece.
[0037] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.
Claims
1. A combustion furnace firebox plate joint die characterized by: It includes a cutter (5), a lower die plate (1) and a concave die (3) installed on the lower die plate (1); a reinforcing plate (2) is also installed on the lower die plate (1); an avoiding groove is formed on the reinforcing plate (2) and matched with the lower outer wall of the concave die (3).
2. The combustion firebox panel seam mold of claim 1, wherein: It also includes an upper die plate (7), an elastic column (9), a pressing plate (8) and a pressing block (4); a stud is screwed with the upper die plate (7) after penetrating the pressing plate (8) and the elastic column (9); the pressing block (4) is fixedly connected to the lower end of the pressing plate (8); a notch is formed on the pressing block (4) for the cutter (5) to penetrate; a limiting groove is formed on the lower surface of the pressing block (4) and matched with the upper surface of the concave die (3).
3. A combustion firebox panel seam die according to claim 1 or 2, characterized in that: The blade of the lower end of the cutter (5) is inclined downward away from the end of the workpiece.
4. The combustion furnace firebox panel seam die of claim 2, wherein: A cutter mounting plate (6) is installed on the lower part of the upper die plate (7); a stud is screwed with the cutter (5) after penetrating the upper die plate (7) and the mounting plate (6).
5. The combustion furnace firebox panel seam die of claim 2, wherein: A guide column (11) is installed on the lower die plate (1); a guide hole is formed on the corresponding position of the upper die plate (7).
6. The combustion firebox panel seam mold of claim 5, wherein: A guide sleeve (10) is installed in the guide hole; the guide column (11) is slidably matched with the guide sleeve (10).
7. The combustion firebox panel seam mold of claim 1, wherein: An inclined surface feeding rack (12) is installed on the reinforcing plate (2); the upper surface of the feeding rack (12) is coplanar with the groove segment of the concave die (3) for supporting the workpiece.
8. The combustion furnace firebox panel seam die of claim 7, wherein: A bottom plate (13) is fixedly installed on the reinforcing plate (2); the feeding rack (12) is installed on the bottom plate (13).
9. The combustion firebox panel seam mold of claim 1, wherein: A blanking port (14) is formed on the concave die (3) and the lower die plate (1).
10. The combustion furnace firebox panel seam die of claim 7, wherein: Limiting plates (15) are installed on both sides of the feeding rack (12).