Ventilation type stacking sintering carrier for push plate furnace
By designing a permeable stacking sintering carrier, and using side guard plates and loading rods to form a carrying grid, the problem of uneven hot air contact was solved, and the quality stability of sintered products and energy consumption were reduced.
Patent Information
- Application Number
- CN202520414840.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-11
AI Technical Summary
The existing pusher furnace sagger structure prevents hot air from contacting the sintered products evenly in a stacked state, resulting in a significant difference in the yield between the upper and lower saggers, especially causing unstable processing quality for electronic products.
Design a permeable stacking sintering carrier, which uses side guards and loading rods to form a loading grid, through holes and convection channels to improve permeability, and reinforces the load-bearing plates to enhance structural stability, and uses a cover plate to prevent debris from falling in.
It improves the overall quality stability of sintered products, reduces equipment energy consumption, ensures that hot air contacts each position evenly, and improves the pass rate of the final product.
Smart Images

Figure CN223795796U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sintering equipment, and in particular to a permeable stacking sintering carrier for a pusher furnace. Background Technology
[0002] A pusher furnace is a commonly used continuous sintering equipment, widely used in the production of electronics, chemicals, and construction. In actual production, the product to be sintered is placed in a sagger, and multiple saggers are then stacked on a pusher plate and placed into the furnace. A dedicated pushing device moves the pusher plate, carrying the saggers into the furnace for sintering. Because commonly used sagger structures are closed at the bottom with ventilation slots around the perimeter, hot air entering the saggers in a stacked state cannot evenly contact every part of the sintered product. This results in a significant difference in heating conditions between the upper and lower saggers, especially for electronic products with stringent processing requirements, where the yield rate of the upper saggers differs significantly from that of the lower saggers. Therefore, it is necessary to improve the existing sagger structure and design a dedicated carrier that can improve the overall quality stability of the sintered products. Utility Model Content
[0003] The main technical problem solved by this utility model is to provide a permeable stacking sintering carrier for a pusher furnace, which can improve the overall quality stability of sintered products.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: providing a permeable stacking sintering carrier for a pusher furnace, the permeable stacking sintering carrier for a pusher furnace includes: a carrier body, the carrier body including side guard plates and loading rods; there are two side guard plates with the same shape, each side guard plate has multiple through holes along the center line, the two side guard plates are symmetrically arranged on both sides of the carrier body, the through holes on the two side guard plates are opposite each other, a loading rod is installed in each pair of through holes, multiple loading rods are installed in parallel between the two side guard plates to form a loading grid, multiple sets of convection grooves are symmetrically opened on the upper and lower sides of each side guard plate about the center line, the multiple sets of convection grooves are evenly distributed along the center line of the side guard plate, and the part between any two adjacent sets of convection grooves constitutes a stacking load-bearing column.
[0005] In a preferred embodiment of this invention, there are multiple stacked load-bearing columns, at least one of which has a positioning protrusion at its top and a positioning groove at a corresponding position at its bottom. The permeable stacking sintering carrier also includes a cover plate, the two sides of which are vertically folded downwards to form side plates. Matching side grooves are formed at positions corresponding to the convection grooves on the side plates and the corresponding side guard plates. Corresponding positioning grooves are also provided at positions corresponding to the positioning protrusions on the side plates and the side guard plates of the cover plate.
[0006] In a preferred embodiment of the present invention, the through holes are provided in the stacked load-bearing columns, and each stacked load-bearing column is provided with no less than two through holes.
[0007] In a preferred embodiment of the present invention, a reinforcing load-bearing plate is provided between the two side guard plates. The shape and outline of the reinforcing load-bearing plate are the same as those of the side guard plates. The reinforcing load-bearing plate divides the interior of the permeable stacking sintering carrier into two loading positions.
[0008] The beneficial effects of this utility model are as follows: This utility model is an improvement on the existing pusher furnace carrier structure. The traditional sagger structure is changed to a grid load-bearing method, which significantly improves the permeability of the entire carrier while reducing the weight of the carrier itself. This results in excellent ventilation during stacking and sintering, allowing hot air to fully contact the products in each carrier, reducing the temperature difference between the uppermost and lowermost carriers, and improving the quality stability of the final product. On the other hand, the weight of the carrier is significantly reduced compared to the sagger, reducing the overall energy consumption of the equipment during the pushing process. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the bottom structure of a preferred embodiment of the present invention;
[0010] Figure 2 This is a side view structural diagram of the embodiment shown;
[0011] Figure 3 This is a side view schematic diagram of the cover plate mechanism in the embodiment shown;
[0012] Figure 4 This is a schematic diagram of the stacking and sintering of the embodiment shown;
[0013] The components in the attached diagram are labeled as follows:
[0014] 1. Carrier; 2. Cover plate; 3. Push plate; 4. Sintered product;
[0015] 101. Side guard plate; 1011. Convection channel; 1012. Stacked load-bearing column; 1013. Positioning column groove; 1014. Positioning protrusion.
[0016] Column, 102. Reinforced load-bearing plate, 103. Loading rod;
[0017] 201. Side plate, 202. Side groove, 203. Cover plate positioning groove. Detailed Implementation
[0018] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.
[0019] Please see Figures 1 to 4 The embodiments of this utility model include:
[0020] A permeable stacking sintering carrier for a pusher furnace includes a carrier body, which comprises side guard plates 101 and loading rods 103. There are two identical side guard plates 101, each with eight through holes along its centerline. The two side guard plates 101 are symmetrically arranged on both sides of the carrier body, with the through holes on each side guard plate 101 facing each other. A loading rod 103 is inserted into each pair of through holes, and the eight loading rods 103 are installed parallel between the two side guard plates 101 to form a loading grid. Each side guard plate 101 has three sets of convection grooves 1011 symmetrically distributed along its centerline on both its upper and lower sides. The portion between any two adjacent sets of convection grooves 1011 forms a stacking support column 1012.
[0021] There are three stacking support columns 1012 in total. One of the stacking support columns 1012 has a positioning protrusion 1014 on the top and a positioning groove 1013 at the corresponding position on the bottom. This makes it convenient to position and place multiple vehicles when stacked, and the pusher plate 3 will not be misaligned when pushed.
[0022] The permeable stacking sintering carrier also includes a cover plate 2. The cover plate 2 is folded downwards vertically on both sides to form side plates 201. The side plates 201 and the corresponding convection grooves 1011 on the side guard plates 101 are provided with matching side grooves 202. The side plates 201 of the cover plate 2 are also provided with corresponding cover plate positioning grooves 203 at the positions corresponding to the positioning protrusions 1014 on the side guard plates. The cover plate 2 can prevent debris from falling onto the surface of the sintered product 4 during production and affecting the final sintering quality. The corresponding cover plate positioning grooves 203 on the side plates of the cover plate 2 can be easily matched with the positioning protrusions 1014 on the side guard plates 101, reducing the possibility of the pusher plate 3 falling off when pushed.
[0023] The through holes are provided in the stacked load-bearing columns 1012, with two through holes in each stacked load-bearing column 1012. This arrangement ensures that the sintered products are placed under the unified force of the stacked load-bearing columns, while the convection channel area is not subjected to force, and the overall ventilation is better.
[0024] A reinforcing load-bearing plate 102 is also provided between the two side guard plates 101. The reinforcing load-bearing plate 102 has the same shape and outline as the side guard plates 101, and divides the interior of the permeable stacking sintering carrier into two loading positions. By setting a reinforcing load-bearing plate 102 with the same shape as the side guard plates 101, the structural strength of the individual carrier can be improved, which not only enhances the ability to bear the weight of the sintered products, but also enhances the overall stacking stability.
[0025] This embodiment can be used as follows in actual use: Figure 4 The sintered products 4 are placed on the carrying grid and then stacked one by one, with the cover plate 2 placed on top. Since the grid structure is used as the carrying structure for the sintered products in this embodiment, compared with the traditional sagger carrier, the overall structure is lighter and significantly reduces the power requirements during the pushing process. On the other hand, the overall ventilation is excellent, and the hot air in the furnace can fully contact each sintered product after stacking, resulting in a more balanced heating effect on different positions and ultimately more stable and reliable product quality.
[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A permeable stacking sintering carrier for a pusher furnace, characterized in that, The permeable stacking sintering carrier for the pusher furnace includes: a carrier body, the carrier body including side guard plates and a loading rod; There are two identical side guard plates. Each side guard plate has multiple through holes along its centerline. The two side guard plates are symmetrically arranged on both sides of the vehicle body. The through holes on the two side guard plates are opposite each other. A loading rod is installed in each pair of through holes. Multiple loading rods are installed in parallel between the two side guard plates to form a loading grid. Multiple sets of convection grooves are symmetrically opened on the upper and lower sides of each side guard plate about the centerline. The multiple sets of convection grooves are evenly distributed along the centerline of the side guard plate. The part between any two adjacent sets of convection grooves forms a stacked load-bearing column.
2. The permeable stacking sintering carrier for a pusher furnace according to claim 1, characterized in that, There are multiple stacked load-bearing columns, at least one of which has a positioning protrusion at the top and a positioning groove at the corresponding position at the bottom.
3. The permeable stacking sintering carrier for a pusher furnace according to claim 2, characterized in that, The permeable stacking sintering carrier also includes a cover plate, the two sides of which are folded downwards vertically to form side plates, and matching side grooves are opened at positions opposite to the convection grooves on the corresponding side guard plates.
4. The permeable stacking sintering carrier for a pusher furnace according to claim 3, characterized in that, The cover plate has corresponding cover plate positioning grooves at the positions of the positioning protrusions on the side plate and the side guard plate.
5. The permeable stacking sintering carrier for a pusher furnace according to claim 1, characterized in that, The through holes are provided in the stacked load-bearing columns, and each stacked load-bearing column is provided with no less than two through holes.
6. The permeable stacking sintering carrier for a pusher furnace according to claim 1, characterized in that, A reinforcing load-bearing plate is also provided between the two side guard plates. The shape and outline of the reinforcing load-bearing plate are the same as those of the side guard plates. The reinforcing load-bearing plate divides the interior of the permeable stacking sintering carrier into two loading positions.