Waste material suction and collection mechanism for baking PC (Poly Carbonate) back plate
By designing a PC back panel baking waste collection mechanism, utilizing negative pressure suction and a detachable heating cover structure, the problem of difficult-to-clean impurities accumulating inside the baking oven is solved, achieving convenient impurity collection and maintenance, and ensuring the stability of the baking effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUQING XUANLANG PHOTOELECTRIC TECH CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-05-12
AI Technical Summary
In existing screen printing drying lines, impurities accumulate in the drying oven, which is difficult to clean, affecting product quality and complicating maintenance.
A waste collection mechanism for baking PC back panel was designed, including a negative pressure suction system and a detachable heating cover. Impurities are sucked out through a negative pressure pipe and a fan, and waste is conveniently collected through a limiting plate and a collection chamber. The detachable heating cover facilitates maintenance.
It enables convenient collection and processing of impurities, avoids internal accumulation, simplifies the maintenance process, and ensures the stability of baking results.
Smart Images

Figure CN224224729U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a PC backplate baking waste collection mechanism. Background Technology
[0002] Screen printing, a type of stencil printing, is one of the four major printing methods, along with offset printing, letterpress printing, and gravure printing. Stencil printing includes methods such as mimeographing, stencil printing, inkjet printing, and screen printing. During printing, ink is forced through the mesh of the image area onto the substrate by a squeegee, creating an image identical to the original artwork. Screen printing equipment is simple, easy to operate, and the printing and plate-making processes are straightforward, inexpensive, and highly adaptable. Common applications of screen printing include: color paintings, posters, business cards, book covers, product labels, and printed textiles.
[0003] The screen printing drying line is an important step in screen printing. Currently, due to long-term use, the air inside the baking oven is often mixed, and a large amount of mixed dust and screen printing ink impurities will accumulate. These impurities may be adsorbed on the product surface and affect product quality. Moreover, the impurities accumulated inside are inconvenient to clean, and the cleaning and maintenance operations are complicated. Utility Model Content
[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a PC back panel baking waste collection mechanism, which is not only reasonable in structure, but also convenient and efficient.
[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a PC back panel baking and suction waste collection mechanism, including a baking box, a conveyor belt for conveying PC back panels is provided inside the baking box, a number of heating ports are spaced apart along the length of the top of the baking box and each heating port is covered with a heating cover, and a waste collection component is provided between adjacent heating covers. The waste collection component includes a top cover, a collection chamber is fixed on the top of the top cover, and the top and bottom of the collection chamber are staggered with openings that communicate with a negative pressure pipe and the top cover respectively. A waste drawer for receiving waste and slidably connected to the collection chamber is provided directly below the negative pressure pipe, and the bottom of the top cover is connected to the baking box.
[0006] Furthermore, a vertically extending limiting plate is fixed at the top of the top cover at the opening to restrict the waste drawer from being pushed in excessively.
[0007] Furthermore, a downward-blowing circulating fan is provided inside the top cover, and the top of the circulating fan is driven by a motor fixed to the top of the top cover.
[0008] Furthermore, one end of the heating cover is hinged to the top of the oven, and the other end is fixed with a handle.
[0009] Furthermore, the top of the heating cover is provided with several drying baffles at intervals. Each drying baffle has two semi-circular clamping rings arranged opposite each other in the middle to clamp the heating tube. The bottom of the two clamping rings is fastened with bolts.
[0010] Furthermore, the top of each clamping ring is fixedly connected to the drying baffle via a connecting rod, and the bottom of each clamping ring is fixedly provided with a docking handle, and each docking handle is provided with a threaded hole through which a bolt passes for fastening.
[0011] Furthermore, the drying baffles are all spaced apart along the width of the heating cover, and each drying baffle is composed of a top baffle fixed to both ends and an inclined plate extending outward and downward.
[0012] Furthermore, a panel is fixedly provided on the top of the heating cover, and grooves for supporting the top rod are recessed on the top of the panel near the handle and on the top of the oven near the handle.
[0013] Furthermore, the top of the baking oven has several collection ports that communicate with the top cover.
[0014] Furthermore, the negative pressure pipe is connected to an external negative pressure exhaust fan.
[0015] Compared with the prior art, the present invention has the following advantages: by setting up the waste collection component, the collection of impurities can be completed conveniently, making it easy to handle and avoiding internal accumulation that is difficult to remove. Combined with the design of the heating cover, the overall maintenance is convenient and the baking effect is stable.
[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;
[0018] Figure 2 This is a schematic diagram of the unfolded state of the heating cover in an embodiment of this utility model;
[0019] Figure 3 This is a schematic diagram of the structure of the waste collection component in an embodiment of this utility model.
[0020] In the diagram: 1-Baking oven, 2-PC back panel, 3-Conveyor belt, 4-Heating port, 5-Heating cover, 6-Top cover, 7-Collection bin, 8-Negative pressure pipe, 9-Opening, 10-Waste drawer, 11-Limiting plate, 12-Circulating fan, 13-Motor, 14-Handle, 15-Drying baffle, 16-Heating tube, 17-Clamping ring, 18-Bolt, 19-Connecting rod, 20-Connecting handle, 21-Screw hole, 22-Top baffle, 23-Sloping plate, 24-Installation plate, 25-Groove, 26-Collection port, 27-Opening, 28-Supporting top rod. Detailed Implementation
[0021] To make the above-mentioned features and advantages of this utility model more apparent and understandable, specific embodiments are described below in conjunction with the accompanying drawings for detailed explanation.
[0022] like Figures 1-3 As shown, the PC back panel baking waste collection mechanism includes a baking chamber 1. The baking chamber is equipped with a conveyor belt 3 for conveying PC back panels 2. The conveyor belt is a nylon mesh conveyor belt. The top of the baking chamber has several heating ports 4 spaced apart along its length, and each heating port is covered with a heating cover 5. A waste collection assembly is provided between adjacent heating covers. The waste collection assembly includes a top cover 6. A collection chamber 7 is fixed on the top of the top cover. The top and bottom of the collection chamber are staggered and have openings 9 that communicate with a negative pressure pipe 8 and the top cover, respectively. A waste drawer 10 is provided directly below the negative pressure pipe to receive waste and is slidably connected to the collection chamber. The bottom of the top cover is connected to the baking chamber.
[0023] In this embodiment of the utility model, a limiting plate 11 extending vertically is fixed at the top of the top cover to limit the excessive pushing of the waste drawer, and an opening 27 is provided on the outer wall of the collection compartment for the waste drawer to slide out.
[0024] In this embodiment of the utility model, a downward-blowing circulating fan 12 is provided inside the top cover, and the top of the circulating fan is driven by a motor 13 fixed to the top of the top cover.
[0025] In this embodiment of the utility model, one end of the heating cover is hinged to the top of the baking oven, and the other end is fixed with a handle 14.
[0026] In this embodiment of the utility model, a plurality of drying baffles 15 are provided at intervals on the top of the heating cover. Two semi-circular clamping rings 17 are symmetrically arranged in the middle of each drying baffle to clamp the heating tube 16. The bottom of the two clamping rings is fastened by bolts 18.
[0027] In this embodiment of the utility model, the top of each clamping ring is fixedly connected to the drying baffle via a connecting rod 19, and the bottom of each clamping ring is fixedly provided with a docking handle 20. Both docking handles are provided with threaded holes 21 for bolts to pass through and tighten.
[0028] In this embodiment of the utility model, the drying baffles are all spaced apart along the width direction of the heating cover, and each drying baffle is composed of a top baffle 22 fixed to both ends and an inclined plate 23 extending outward and downward.
[0029] In this embodiment of the utility model, a plate 24 is fixedly provided on the top of the heating cover. The top of the plate near the handle and the top of the oven near the handle are both recessed with grooves 25 for supporting the top rod 28. When it is necessary to replace the heating tube or perform maintenance, it is only necessary to pull the handle to open the heating cover to a certain angle, and the top rod can be supported in the two grooves to carry out the replacement and maintenance work, which is convenient.
[0030] In this embodiment of the invention, the top of the baking oven is provided with several collection ports 26 that communicate with the top cover.
[0031] In this embodiment of the invention, a negative pressure exhaust fan is connected to the negative pressure pipe.
[0032] The working principle of this utility model embodiment is as follows: First, the PC back panel to be baked is placed on a conveyor belt and transported to the baking oven. The heating element operates to heat and bake the contents of the oven. A fan evenly distributes the internal heat, while a negative pressure exhaust fan draws away some of the turbid air, which often contains dust and screen printing ink impurities. This is done by removing the impurities as described in the attached instruction manual. Figure 3 The gas is discharged through the indicated route. Some particulate solid impurities or liquid impurities formed in the negative pressure tube fall freely into the waste drawer for collection. After collection, the waste drawer can be pulled out for cleaning.
[0033] This utility model is not limited to the preferred embodiment described above. Anyone can derive other various forms of PC back panel baking waste collection mechanisms based on the teachings of this utility model. All equivalent variations and modifications made within the scope of the claims of this utility model should be considered within the scope of this utility model.
Claims
1. A PC back panel baking waste collection mechanism, characterized in that: The device includes a baking oven, which is equipped with a conveyor belt for transporting PC back panels. The top of the baking oven has several heating ports spaced apart along its length, and each heating port is covered with a heating cover. A waste collection assembly is provided between adjacent heating covers. The waste collection assembly includes a top cover, and a collection chamber is fixed on the top of the top cover. The top and bottom of the collection chamber are staggered and have openings that communicate with a negative pressure pipe and the top cover, respectively. A waste drawer is provided directly below the negative pressure pipe to receive waste and is slidably connected to the collection chamber. The bottom of the top cover is connected to the baking oven.
2. The PC back panel baking waste collection mechanism according to claim 1, characterized in that: The top of the cover is fixed at the opening with a vertically extending limiting plate to restrict the waste drawer from being pushed in excessively.
3. The PC back panel baking waste collection mechanism according to claim 2, characterized in that: The top cover is equipped with a downward-blowing circulating fan, which is driven by a motor fixed to the top of the top cover.
4. The PC back panel baking waste collection mechanism according to claim 1, characterized in that: One end of the heating cover is hinged to the top of the oven, and the other end is fixed with a handle.
5. The PC back panel baking waste collection mechanism according to claim 4, characterized in that: The heating cover has several drying baffles spaced apart at the top. Each drying baffle has two semi-circular clamping rings arranged opposite each other in the middle to clamp the heating tube. The bottom of the two clamping rings is fastened with bolts.
6. The PC back panel baking waste collection mechanism according to claim 5, characterized in that: The top of each clamping ring is fixedly connected to the drying baffle via a connecting rod, and the bottom of each clamping ring is fixedly provided with a docking handle. Both docking handles have threaded holes through which bolts can pass for tightening.
7. The PC back panel baking waste collection mechanism according to claim 5, characterized in that: The drying baffles are all spaced apart along the width of the heating cover, and each drying baffle is composed of a top baffle fixed to both ends and an inclined plate extending outward and downward.
8. The PC back panel baking waste collection mechanism according to claim 5, characterized in that: The heating cover has a plate fixed to its top, and the top of the plate near the handle and the top of the oven near the handle are both recessed with grooves for mounting the support rod.
9. The PC back panel baking waste collection mechanism according to claim 1, characterized in that: The top of the baking oven has several collection ports that communicate with the top cover.
10. The PC back panel baking waste collection mechanism according to claim 1, characterized in that: The negative pressure pipe is connected to an external negative pressure exhaust fan.