A three-dimensional stacked baking oven

Abstract

The utility model relates to the technical field of baking equipment, and concretely relates to a three -dimensional laminated baking oven, including baking oven body, the baking oven body is installed with heating case, is installed with heating tube and fan on heating case, is equipped with circulating cavity on the baking oven body, is equipped with intercept structure on heating case, and the intercept structure includes the sliding frame of sliding connection in the air inlet and air outlet department of baking oven body, fixedly connected with the filter screen on the sliding frame, fixedly connected with the pull frame on the sliding frame. The filter screen fixed on the sliding frame can intercept the dust, impurity in hot -blast circulation, avoids its adhesion on the surface of heating tube and influence heat efficiency or pollute the product.

Description

Technical Field

[0001] This utility model relates to a baking oven, specifically a three-dimensional stacked baking oven, belonging to the technical field of baking equipment. Background Technology

[0002] Three-dimensional baking ovens are key equipment used in the fields of electronics manufacturing and printing to dry and cure printed PCB circuit boards, window glass and other products. The core of the oven is to replace the horizontal layout of the traditional planar conveyor baking oven with a vertical stacked structure. It uses heating tubes to provide heat source and fans to drive hot air to form hot air circulation in the oven body circulation chamber. With the help of multi-layer racks to support products, batch baking is achieved.

[0003] However, during long-term use, dust, fibers and other impurities carried by the hot air circulation in existing 3D ovens tend to adhere to the surface of the heating tubes. This not only forms an insulation layer that reduces the thermal efficiency of the heating tubes and increases energy consumption, but also causes uneven heating of the heating tubes due to localized accumulation of impurities, affecting the temperature stability inside the oven and leading to fluctuations in the baking quality of the products. Utility Model Content

[0004] The purpose of this invention is to provide a three-dimensional stacked baking oven to solve the above problems. The filter screen fixed on the sliding frame can intercept dust and impurities in the hot air circulation, preventing them from adhering to the surface of the heating tube and affecting thermal efficiency or contaminating the product.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a three-dimensional stacked baking oven, including a baking oven body, a heating box installed on the baking oven body, a heating tube and a fan installed on the heating box, a circulation chamber provided on the baking oven body, and an interception structure provided on the heating box. The interception structure includes a sliding frame slidably connected to the air inlet and air outlet of the baking oven body, a filter screen fixedly connected to the sliding frame, and a pull frame fixedly connected to the sliding frame.

[0006] Preferably, the heating box has two fixed shafts fixedly connected to it, and the fixed shafts have stops fixedly connected to them.

[0007] Preferably, the pull frame has a concave structure, and the stop block blocks and limits the pull frame.

[0008] Preferably, a pin is slidably connected to the stop block, and two connecting rings are fixedly connected to the heating box.

[0009] Preferably, the connecting ring has four insertion holes, which are arranged in a circular array about the center of the connecting ring.

[0010] Preferably, the two pins are respectively inserted into one of the holes on the two connecting rings, and a pull block is fixedly connected to the pin.

[0011] Preferably, the oven body is provided with an adjustment structure, the adjustment structure includes a slider, the slider is slidably connected to the oven body, a placement rack is fixedly connected to the slider, and the placement rack is slidably connected to the oven body.

[0012] Preferably, a guide rail is fixedly connected to the oven body, and the slider is slidably connected to the guide rail.

[0013] Preferably, the oven body has two connecting shafts rotatably connected to it, and a synchronous pulley is installed on the connecting shaft. The two synchronous pulleys are driven by a synchronous belt, and the slider is fixedly connected to the synchronous belt.

[0014] Preferably, a drive unit is installed on the oven body, and one of the connecting shafts is driven by the drive unit.

[0015] The beneficial effects of this utility model are: a heating box is installed on the oven body, a heating tube and a fan are installed on the heating box, a circulation chamber is provided on the oven body, an interception structure is provided on the heating box, a filter screen is fixedly connected to the sliding frame, and a pull frame is fixedly connected to the sliding frame. The filter screen fixed on the sliding frame can intercept dust and impurities in the hot air circulation, preventing them from adhering to the surface of the heating tube and affecting the thermal efficiency or contaminating the product. Attached Figure Description Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the connection structure between the placement rack and the slider of this utility model; Figure 3 for Figure 2 The diagram shown is an enlarged view of the structure of part A. Figure 4 This is a schematic diagram of the connection structure between the heating box and the baking oven body of this utility model; Figure 5 for Figure 4 The diagram shows an enlarged view of section B.

[0016] In the diagram: 1. Baking oven body; 2. Interception structure; 201. Sliding frame; 202. Filter screen; 203. Pull frame; 204. Pin; 205. Fixed shaft; 206. Stop block; 207. Connecting ring; 208. Insertion hole; 3. Adjustment structure; 301. Slider; 302. Placement rack; 303. Guide rail; 304. Connecting shaft; 305. Synchronous pulley; 306. Synchronous belt; 307. Drive component; 4. Heating element; 5. Fan; 6. Heating box; 7. Circulation chamber. Detailed Implementation

[0017] 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.

[0018] Please see Figures 1-5 As shown, a three-dimensional stacked baking oven includes a baking oven body 1, a heating box 6 installed on the baking oven body 1, a heating tube 4 and a fan 5 installed on the heating box 6, a circulation chamber 7 provided on the baking oven body 1, and an interception structure 2 provided on the heating box 6. The interception structure 2 includes a sliding frame 201 slidably connected to the air inlet and air outlet of the baking oven body 1, a filter screen 202 fixedly connected to the sliding frame 201, and a pull frame 203 fixedly connected to the sliding frame 201.

[0019] As a technical optimization of this utility model, two fixed shafts 205 are fixedly connected to the heating box 6, and a stop block 206 is fixedly connected to the fixed shaft 205. The pull frame 203 has a concave structure. The stop block 206 blocks and limits the pull frame 203. A pin 204 is slidably connected to the stop block 206. Pushing the slide frame 201, which is slidably connected to the air inlet and air outlet, into the corresponding installation position, the filter screen 202 fixed on the slide frame 201 can intercept dust and impurities in the hot air circulation, preventing them from adhering to the surface of the heating tube 4 and affecting the thermal efficiency or contaminating the product. When the slide frame 201... After being pushed into place, rotate the stop block 206 connected to the fixed shaft 205 on the heating box 6 to rotate the stop block 206 into the pull frame 203, thereby blocking and limiting the pull frame 203 to prevent the sliding frame 201 from shifting under the impact of the airflow generated by the fan 5. Two connecting rings 207 are fixedly connected to the heating box 6. The connecting rings 207 are provided with four insertion holes 208. The four insertion holes 208 are arranged in a circular array about the center of the connecting rings 207. Two pins 204 are respectively inserted into one of the insertion holes 208 on the two connecting rings 207. A pull block is fixedly connected to the pin 204.

[0020] As a technical optimization of this utility model, the oven body 1 is provided with an adjustment structure 3, which includes a slider 301. The slider 301 is slidably connected to the oven body 1, and a placement rack 302 is fixedly connected to the slider 301. The placement rack 302 is slidably connected to the oven body 1. A guide rail 303 is fixedly connected to the oven body 1, and the slider 301 is slidably connected to the guide rail 303. When the drive unit 307 (preferably a motor) is activated, the drive unit 307 drives one of the connecting shafts 304 to rotate. The synchronous pulley 305 on the connecting shaft 304 drives the other synchronous pulley 305 and the corresponding connecting shaft 304 synchronously through the synchronous belt 306. As the slider 301, fixed to the synchronous belt 306, rotates, it slides along the guide rail 303. The placement racks 302 fixed to the slider 301 (forty layers of placement racks 302 are evenly distributed vertically, each layer carrying three products, for a total capacity of one hundred and twenty pieces) move synchronously. The placement racks 302 in the upper area receive products to be baked from the previous process (printing speed nine seconds per piece), while the placement racks 302 in the lower area transport baked products to the next process. The transport process strictly follows a "first-in, first-out" cycle logic. In the initial cycle, the upper area first places the products to be baked into the first layer of placement rack 302. The placement rack 302 then moves, and the lower area... The baking process begins by retrieving material from the second-layer rack 302, then proceeds sequentially in a "retrieving layer + two" pattern (retrieving the fourth layer after placing the second layer, the sixth layer after placing the fourth layer, and so on), until the thirty-eighth layer is placed and the fortieth layer is retrieved. Upon entering the high-level switching phase, the loop logic switches to "retrieving layer - one" and "retrieving layer - two" (retrieving the thirty-ninth layer after placing the fortieth layer, the thirty-ninth layer after placing the thirty-seventh layer, and so on), until the third layer is placed and the first layer is retrieved. Finally, in the low-level reset phase, the loop logic resets to its initial state, restarting from placing the first layer and retrieving the second layer. This loop mechanism ensures that each product remains in the baking zone for eighteen minutes, precisely matching the previous... The printing speed of 400pcs / H ensures that the baking time of all products is consistent, avoiding problems such as insufficient or over-baking. At the same time, the 40-layer three-dimensional stacked layout compresses the horizontal size of the equipment to six meters. Combined with the heating box 6's power consumption of only 15KW, it greatly saves space and energy costs. Two connecting shafts 304 are rotatably connected on the baking oven body 1. Synchronous pulleys 305 are installed on the connecting shafts 304. The two synchronous pulleys 305 are driven by a synchronous belt 306. The slider 301 is fixedly connected to the synchronous belt 306. A driving component 307 is installed on the baking oven body 1, and one of the connecting shafts 304 is driven by the driving component 307.

[0021] In use, before operation, the operator holds the pull frame 203 (which has a concave structure for easy application of force) and pushes the sliding frame 201, which is slidably connected to the air inlet and outlet, into the corresponding installation position. The filter 202 fixed on the slide frame 201 can intercept dust and impurities in the hot air circulation, preventing them from adhering to the surface of the heating tube 4 and affecting thermal efficiency or contaminating the product. After the slide frame 201 is pushed into place, the stop block 206 connected to the fixed shaft 205 on the heating box 6 is rotated, so that the stop block 206 rotates into the pull frame 203, blocking and limiting the pull frame 203 to prevent the slide frame 201 from shifting under the impact of the airflow generated by the fan 5. Then, the pins 204 are pushed to slide on the stop block 206, so that the two pins 204 are inserted respectively. One of the insertion holes 208 of the two connecting rings 207 on the heating box 6, and the pull block on the pin 204 facilitate subsequent insertion and removal operations. The design of the pull-out sliding frame 201 enables quick disassembly and assembly of the filter screen 202, facilitating regular cleaning and replacement. At the same time, the cooperation between the stop block 206 and the pin 204 ensures the stability of the filter screen 202 during operation, guaranteeing the hot air filtration effect. After the fan 5 is started, it drives the impeller to rotate, extracting the heat generated by the heating tube 4 in the heating box 6 and transporting it to the circulation chamber 7 of the baking oven body 1. The hot air flows through the products on each layer of the rack 302 in the circulation chamber 7 to complete the heat transfer, and then flows back to the heating box 6 to be reheated by the heating tube 4, forming a continuous hot air circulation to achieve product baking. Then the drive component 307 (preferably) is started. The motor drives one of the connecting shafts 304 to rotate. A synchronous pulley 305 on the connecting shaft 304 drives another synchronous pulley 305 and its corresponding connecting shaft 304 to rotate synchronously via a synchronous belt 306. The slider 301, fixed to the synchronous belt 306, slides along the guide rail 303. The placement racks 302 fixed to the slider 301 (forty layers of placement racks evenly distributed vertically, each layer carrying three products, for a total capacity of one hundred and twenty products) move synchronously. The placement racks 302 in the upper area receive products to be baked from the previous process (printing speed nine seconds per piece), while the placement racks 302 in the lower area transport baked products to the next process. The conveying process strictly follows a "first-in, first-out" cycle logic. The initial cycle... In the initial stage, the upper section first places the products to be baked into the first shelf 302. The shelf 302 moves, and the lower section retrieves products from the second shelf 302. This process continues sequentially, incrementing the shelf position by two (place the second shelf and retrieve the fourth, place the fourth shelf and retrieve the sixth, etc.), until the thirty-eighth shelf is placed and the fortieth shelf is retrieved. Upon entering the high-level switching stage, the loop logic changes to decrementing the shelf position by one (place the fortieth shelf and retrieve the thirty-ninth, place the thirty-ninth shelf and retrieve the thirty-seventh, etc.), until the third shelf is placed and the first shelf is retrieved. Finally, in the low-level reset stage, the loop logic resets to its initial state, and the process restarts from placing the first shelf and retrieving the second shelf. This loop mechanism ensures that each product remains in the baking area for eighteen minutes.It precisely matches the printing speed of 400pcs / H in the preceding process while ensuring consistent baking time for all products, avoiding under-baking or over-baking. Simultaneously, the 40-layer three-dimensional stacked layout compresses the equipment's horizontal dimensions to six meters, and with the heating chamber consuming only 15KW, it significantly saves on space requirements and energy costs.

[0022] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0023] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A three-dimensional stacked baking oven, comprising an oven body (1), wherein a heating box (6) is installed on the oven body (1), a heating tube (4) and a fan (5) are installed on the heating box (6), and a circulation chamber (7) is provided on the oven body (1), characterized in that: The heating box (6) is provided with an interception structure (2). The interception structure (2) includes a sliding frame (201) that is slidably connected to the air inlet and air outlet of the baking oven body (1). A filter screen (202) is fixedly connected to the sliding frame (201), and a pull frame (203) is fixedly connected to the sliding frame (201).

2. The three-dimensional stacked baking oven according to claim 1, characterized in that: Two fixed shafts (205) are fixedly connected to the heating box (6), and a stop block (206) is fixedly connected to the fixed shaft (205).

3. A three-dimensional stacked baking oven according to claim 2, characterized in that: The pull frame (203) has a concave structure, and the stop block (206) blocks and limits the pull frame (203).

4. A three-dimensional stacked baking oven according to claim 3, characterized in that: A pin (204) is slidably connected to the stop (206), and two connecting rings (207) are fixedly connected to the heating box (6).

5. A three-dimensional stacked baking oven according to claim 4, characterized in that: The connecting ring (207) is provided with four sockets (208), and the four sockets (208) are arranged in a circular array about the center of the connecting ring (207).

6. A three-dimensional stacked baking oven according to claim 5, characterized in that: The two pins (204) are respectively inserted into one of the holes (208) on the two connecting rings (207), and a pull block is fixedly connected to the pins (204).

7. A three-dimensional stacked baking oven according to claim 1, characterized in that: The oven body (1) is provided with an adjustment structure (3), the adjustment structure (3) includes a slider (301), the oven body (1) is slidably connected to the slider (301), the slider (301) is fixedly connected to the slider (301), and the placement rack (302) is slidably connected to the oven body (1).

8. A three-dimensional stacked baking oven according to claim 7, characterized in that: The oven body (1) is fixedly connected to a guide rail (303), and the slider (301) is slidably connected to the guide rail (303).

9. A three-dimensional stacked baking oven according to claim 8, characterized in that: The oven body (1) has two connecting shafts (304) rotatably connected. A synchronous pulley (305) is installed on the connecting shaft (304). The two synchronous pulleys (305) are driven by a synchronous belt (306). The slider (301) is fixedly connected to the synchronous belt (306).

10. A three-dimensional stacked baking oven according to claim 9, characterized in that: A drive unit (307) is installed on the oven body (1), and one of the connecting shafts (304) is driven by the drive unit (307).

Images