A continuous hot air drying apparatus for glass products

Abstract

The application discloses a kind of glassware continuous hot air drying equipment, belong to glass product production and manufacturing technical field, it includes annular guide rail conveying line, the slider in the annular guide rail conveying line is provided with main drying mechanism, the annular guide rail conveying line is equipped with hot air external oven, the inner wall of the hot air external oven is provided with multiple groups of hot air blast nozzle, to carry out hot air drying to the outside of glass product.The main drying mechanism includes support base fixedly connected on the slider.The application is rotated around glassware by annular linkage shell, and at the same time, close-range, full-circumferential hot air injection is carried out on inner and outer walls, and the inner top is dried by cooperating with top spout, synchronous full coverage of inner and outer walls is realized.Compared with the static air supply mode of traditional fixed blast nozzle, hot air directly acts on the surface of the vessel, greatly shortens the drying time, and is especially suitable for rapid drying of deep cavity or thick wall glass product.

Description

Technical Field

[0001] This invention belongs to the field of glass product manufacturing technology, specifically a continuous hot air drying equipment for glass products. Background Technology

[0002] Continuous hot air drying equipment for glass products is an industrial drying device used for large-scale production. It typically employs a conveyor belt or tunnel structure, with glass products continuously passing through a closed drying chamber. Inside the equipment, air is heated by electric heating elements, and a forced circulation system continuously blows the hot air onto the glass surface to evaporate moisture. It is primarily used for the curing of glassware after spraying or printing, or for the drying process after cleaning.

[0003] Existing continuous hot air drying equipment typically uses a fixed nozzle structure, making it difficult for hot air to evenly cover the inner and outer walls of glassware. This is especially problematic for drying deep-cavity or irregularly shaped products, often resulting in incomplete drying in certain areas or surface overheating. Furthermore, a significant amount of hot air dissipates before reaching the surface, and insufficient insulation design leads to substantial heat waste and high energy consumption. In addition, the relatively fixed heating mechanism makes it difficult to adjust flexibly according to the different diameters, heights, and shapes of the glass products, resulting in poor equipment versatility and an inability to meet the needs of multi-variety mixed-line production, thus limiting production efficiency and process stability. Summary of the Invention

[0004] To overcome the above-mentioned defects, the present invention provides a continuous hot air drying equipment for glass products, which solves the problems of low hot air utilization efficiency and easy damage to glassware when drying glass cups, wide-mouth glass bottles and other glasswares in existing glass product drying equipment.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a continuous hot air drying device for glass products, comprising: A circular guide rail conveyor line, wherein a main drying mechanism is installed on a slider inside the circular guide rail conveyor line, and a hot air outer drying box is installed on the circular guide rail conveyor line. The inner wall of the hot air outer drying box is provided with multiple sets of hot air nozzles to dry the exterior of the glass products with hot air. The main drying mechanism includes a support base fixedly connected to the slider, a connecting base fixedly connected to the support base, an electric telescopic rod fixedly connected to the connecting base, a three-axis bracket fixedly connected to the top of the electric telescopic rod, and three support arms fixedly connected at equal intervals along the radial direction of the three-axis bracket. Each support arm has a soft, high-temperature resistant rubber pad at its end. The three-axis bracket is used to provide soft support for the inner top of the glass product. A bearing is provided on the outer wall of the main body of the electric telescopic rod. The inner ring of the bearing is fixedly connected to the main body of the electric telescopic rod, while the outer ring is fixedly connected to an annular linkage shell.

[0006] As a further embodiment of the present invention: the main drying mechanism further includes a bevel gear ring rotatably connected within the annular linkage housing; three bevel gears are rotatably connected at equal intervals along the radial direction of the annular linkage housing on the inner wall of the annular linkage housing; the bevel gears mesh with the bevel gear ring; a passive gear ring is fixedly connected to the bottom of the annular linkage housing; a drive motor is provided on the connecting base; a drive gear is drivenly connected to the output end of the drive motor; the drive gear meshes with the passive gear ring; a drive bevel gear is rotatably connected to the inner wall of the annular linkage housing; the drive bevel gear meshes with the bevel gear ring; and a servo motor for driving the drive bevel gear to rotate is fixedly connected to the outer wall of the annular linkage housing at the position corresponding to the drive bevel gear.

[0007] As a further embodiment of the present invention: a gear box is provided on the outer wall of the annular linkage housing at the position corresponding to the bevel gear. A main gear and a secondary gear are rotatably connected inside the gear box. The main gear and the secondary gear mesh with each other, and the main gear is connected to the bevel gear in a transmission connection.

[0008] As a further embodiment of the present invention: a guide housing is fixedly connected to one side of the gear box, a lead screw is rotatably connected inside the guide housing, the lead screw is connected to the secondary gear inside the gear box, a matching nut is threaded onto the lead screw, a mating slider is fixedly connected to one side of the nut, an opening is provided on one side of the guide housing, and the mating slider is slidably connected inside the opening.

[0009] As a further aspect of the present invention: a circular limiting groove is provided on the sliding block, a first hot air pipe is slidably connected in the limiting groove, a mounting base is fixedly connected to one side of the sliding block, and a second hot air pipe is fixedly connected to the mounting base. Both the first and second hot air pipes are hollow inside, and multiple vertically arrayed air outlets are provided on opposite sides for spraying hot air onto the inner and outer walls of the glass product for drying.

[0010] As a further aspect of the present invention: the top of the first hot air pipe is also provided with a top spray nozzle for hot air drying inside the glass product; a toothed groove is provided on the side of the first hot air pipe away from the air outlet; a rack is fixedly connected in the toothed groove; a drive gear matching the rack is rotatably connected to the mating slider; a micro servo motor for driving the mating gear to rotate is also provided on the mating slider; the output end of the micro servo motor is connected to the drive gear for transmission.

[0011] As a further aspect of the present invention: several rotating frame plates are fixedly connected to both sides of the second hot air pipe, and rotating rollers are rotatably connected between two adjacent rotating frame plates. The two rows of rotating rollers are in contact with the outer wall of the glass product to be dried and rotate relative to each other, so that different positions can be dried.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention utilizes a ring-shaped, interconnected outer shell to drive the first and second hot air pipes to rotate around the glass vessel, simultaneously spraying hot air at close range and in a full circumference onto the inner and outer walls. Combined with a top nozzle for drying the inner top, this achieves synchronous, full coverage of both the inner and outer walls. Compared to the traditional static air delivery method with fixed nozzles, the hot air acts directly on the vessel surface, significantly shortening the drying time, making it particularly suitable for the rapid drying of deep-cavity or thick-walled glass products.

[0013] Because the first and second hot air ducts operate close to the inner and outer walls of the glassware, the hot air's effective range is highly concentrated, effectively avoiding the significant heat loss caused by traditional long-distance, wide-area air delivery. This close-range, precise air delivery mode significantly reduces the demand for hot air, decreases energy consumption, and lowers the ambient temperature rise in the workshop, making it more environmentally friendly and energy-efficient.

[0014] The three-axis screw adjustment mechanism allows for simultaneous control of the radial movement of three sets of hot air pipes, adapting to containers of different diameters. Simultaneously, the first hot air pipe can be independently raised and lowered to accommodate varying heights. Furthermore, an inverted three-point soft rubber pad provides stable support, while the rotating rollers on the outer side of the second hot air pipe generate rolling friction during clamping, ensuring centered positioning and preventing scratches, thus guaranteeing the safe drying of products of various specifications. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional internal structure diagram of the present invention; Figure 3 This is a three-dimensional structural diagram of the main drying mechanism of the present invention; Figure 4 This is a three-dimensional structural schematic diagram of the main drying mechanism of the present invention from another perspective; Figure 5 This is a three-dimensional internal structure diagram of the main drying mechanism of the present invention; Figure 6 This is a three-dimensional internal structure diagram of the gearbox of the present invention; Figure 7 This is a three-dimensional internal structure diagram of the guide shell portion of the present invention.

[0016] In the diagram: 1. Circular guide rail conveyor line; 2. Main drying mechanism; 3. Hot air outer oven; 20. Support base; 21. Connecting base; 22. Electric telescopic rod; 23. Three-axis bracket; 24. High-temperature resistant rubber pad; 25. Bearing; 26. Circular linkage housing; 27. Bevel gear ring; 28. Bevel gear; 29. ​​Passive gear ring; 210. Drive motor; 211. Drive gear; 212. Drive bevel gear; 213. Servo motor; 214. Gearbox; 215. Main gear; 216. Secondary gear; 217. Guide housing; 218. Lead screw; 219. Lead nut; 220. Mating slider; 221. First hot air pipe; 222. Mounting base; 223. Second hot air pipe; 224. Rack; 225. Drive gear; 226. Miniature servo motor; 227. Rotating frame plate; 228. Rotating roller. Detailed Implementation

[0017] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0018] Example 1, referring to Figures 1-3 This is the first embodiment of the present invention. This embodiment provides a continuous hot air drying equipment for glass products, which includes: an annular guide rail conveyor line 1, a main drying mechanism 2 disposed on a slider inside the annular guide rail conveyor line 1, a hot air outer drying box 3 disposed on the annular guide rail conveyor line 1, and multiple sets of hot air nozzles disposed on the inner wall of the hot air outer drying box 3 for hot air drying of the exterior of the glass products.

[0019] The present invention uses a ring guide rail conveyor line 1 as the basic conveying platform, the main drying mechanism 2 is carried on the slider and moves linearly in a circular motion, and a fixed hot air external drying box 3 is set at a predetermined work position to realize the coordinated operation of fixed-point conveying and fixed-point external drying.

[0020] The main drying mechanism 2 includes a support base 20 fixedly connected to the slider, a connecting base 21 fixedly connected to the support base 20, an electric telescopic rod 22 fixedly connected to the connecting base 21, a three-axis bracket 23 fixedly connected to the top of the electric telescopic rod 22, and three support arms fixedly connected at equal intervals along the radial direction of the three-axis bracket 23. Each support arm is provided with a soft high-temperature resistant rubber pad 24 at its end. The three-axis bracket 23 is used to provide soft support for the inner top of the glass product. A bearing 25 is provided on the outer wall of the main body of the electric telescopic rod 22. The inner ring of the bearing 25 is fixedly connected to the main body of the electric telescopic rod 22, while the outer ring is fixedly connected to an annular linkage outer shell 26.

[0021] The support base 20 is installed on the slider and serves as the mounting base for the main drying mechanism 2. An electric telescopic rod 22 is installed on the connecting base 21. The three-axis bracket 23 at the top of its output end can support the glassware to be dried in an inverted state. The high-temperature resistant rubber pads 24 on its three arms can provide soft support for the inner bottom of the glassware to avoid scratching or damaging the glassware. The three-point distribution of the high-temperature resistant rubber pads 24 can ensure the stability of the glassware when it is placed upside down and prevent the glassware from tipping over and colliding with other parts.

[0022] It should be noted that this device is designed for general glassware, such as glass cups, glass bowls, or wide-mouthed glass bottles.

[0023] Example 2, refer to Figures 3-7 This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a further detailed description of a continuous hot air drying device for glass products and its main drying mechanism 2, which provides the main drying function. The main drying mechanism 2 further includes a bevel gear ring 27 rotatably connected within an annular linkage housing 26. Three bevel gears 28 are equidistantly connected radially to the inner wall of the annular linkage housing 26, meshing with the bevel gear ring 27. A passive gear ring 29 is fixedly connected to the bottom of the annular linkage housing 26. A drive motor 210 is mounted on the connecting base 21, and a transmission connection is made to the output end of the drive motor 210. A drive gear 211 meshes with a driven gear ring 29. A drive bevel gear 212 is rotatably connected to the inner wall of the annular linkage housing 26. The drive bevel gear 212 meshes with a bevel gear ring 27. A servo motor 213 is fixedly connected to the outer wall of the annular linkage housing 26 at the position corresponding to the drive bevel gear 212. A gear box 214 is provided on the outer wall of the annular linkage housing 26 at the position corresponding to the bevel gear 28. A main gear 215 and a secondary gear 216 are rotatably connected inside the gear box 214. The main gear 215 and the secondary gear 216 mesh with each other. The main gear 215 is connected to the bevel gear 28 in a transmission connection.

[0024] The drive motor 210 can drive the drive gear 211 to rotate, and the passive gear ring 29 that meshes with the drive gear 211 can rotate. In this way, the annular linkage housing 26 can rotate relative to the electric telescopic rod 22. The servo motor 213 drives the drive bevel gear 212 to rotate, and the bevel gear ring 27 that meshes with it can rotate. The three bevel gears 28 in the annular linkage housing 26 can rotate synchronously. The gear box 214 is used to transmit the torque generated by the bevel gears 28 in parallel through the main gear 215 and the auxiliary gear 216 in the gear box 214.

[0025] A guide housing 217 is fixedly connected to one side of the gear box 214. A lead screw 218 is rotatably connected inside the guide housing 217. The lead screw 218 is connected to the secondary gear 216 inside the gear box 214. A matching nut 219 is threaded onto the lead screw 218. A mating slider 220 is fixedly connected to one side of the nut 219. One side of the guide housing 217 is open. The mating slider 220 is slidably connected to the opening. A circular limiting groove is provided on the mating slider 220. A first hot air pipe 221 is slidably connected in the limiting groove. A mounting base 222 is fixedly connected to one side of the mating slider 220. A second hot air pipe 223 is fixedly connected to the mounting base 222. Both the first hot air pipe 221 and the second hot air pipe 223 are hollow inside and have multiple vertically arrayed air outlets on opposite sides for spraying hot air onto the inner and outer walls of the glass product for drying.

[0026] The lead screw 218 inside the guide housing 217 is connected to the auxiliary gear 216. When the lead screw 218 rotates, the threaded nut 219 will move along its axial direction, simultaneously driving the mating slider 220 fixed to one side to move synchronously. It should be noted that the movement trajectory of the mating slider 220 is consistent with the axial direction of the main gear 215. The purpose of setting up the guide housing 217 and its internal main gear 215 and auxiliary gear 216 is to allow the mating slider 220 to move along the axial direction of the main gear 215 and bevel gear 28, thereby facilitating the movement of the first hot air pipe 221 and the second hot air pipe 223. The first hot air pipe 221 and the second hot air pipe 223 are better positioned on the inner and outer walls of the glassware, respectively, to dry the glassware with hot air. By adjusting the lead screw 218, the lead screw nut 219, the sliding block 220, and the mounting base 222 move synchronously, thereby adjusting the position of the first hot air pipe 221 and the second hot air pipe 223 to meet the drying needs of glassware of different diameters. The air outlets on the first hot air pipe 221 and the second hot air pipe 223 face the side wall of the glassware, and both are connected to the hot air generator (not shown in the figure) through flexible hoses.

[0027] The top of the first hot air pipe 221 is also provided with a top spray nozzle for hot air drying inside the glass product. The side of the first hot air pipe 221 away from the air outlet is provided with a toothed groove, and a rack 224 is fixedly connected in the toothed groove. A drive gear 225 that matches the rack 224 is rotatably connected to the slider 220. A micro servo motor 226 for driving the drive gear 225 is also provided on the slider 220. The output end of the micro servo motor 226 is connected to the drive gear 225. Several rotating frame plates 227 are fixedly connected to both sides of the second hot air pipe 223. Rotating rollers 228 are rotatably connected between two adjacent rotating frame plates 227. The two rows of rotating rollers 228 are in contact with the outer wall of the glass product to be dried and rotate relative to each other, so that different positions can be dried.

[0028] The top nozzle at the top of the first hot air pipe 221 can dry the top of the glass product with hot air. It should be noted that when the annular linkage housing 26 and the first hot air pipe 221 and the second hot air pipe 223 rotate relative to the glassware on the three-axis bracket 23 on the electric telescopic rod 22, the glassware can be dried with annular hot air. Since the first hot air pipe 221 and the second hot air pipe 223 are closer to the working surface, their drying efficiency is significantly improved compared to the existing fixed hot air nozzle design. The hot air demand is reduced, and the heat loss phenomenon is slight, which is more energy-saving and environmentally friendly.

[0029] It should be further explained that, under the adjustment of the lead screw 218, the rotating rollers 228 inside the rotating brackets 227 on both sides of the second hot air pipe 223 are in contact with the outer wall of the glassware. Because the three lead screws 218 are arranged in a three-axis configuration and move synchronously, the glassware can be centered and aligned to ensure its orientation remains centered during the drying process. Furthermore, before drying, to avoid motion interference and reduce the difficulty of placing the glassware, the first hot air pipe 221 is positioned lower than the sliding block 220. After the second hot air pipe 223 clamps and stabilizes the glassware, a micro servo... The servo motor 226 drives the drive gear 225 to rotate, which, in conjunction with the rack 224 on the first hot air pipe 221, raises the position of the first hot air pipe 221 so that its height is basically the same as that of the second hot air pipe 223, thereby basically completely covering the drying working area required for the glassware. Since the height of different glasswares is different, the required height of the first hot air pipe 221 and the second hot air pipe 223 is also different. Therefore, in practical applications, a telescopic structure can be adopted according to the size of the current batch of glasswares, or different lengths of pipes can be replaced as needed to meet the requirements of different working conditions.

[0030] The rest of the structure is the same as in Example 1.

[0031] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A continuous hot air drying equipment for glass products, characterized in that, include: A ring-shaped guide rail conveyor (1) is provided with a main drying mechanism (2) on the slider inside the ring-shaped guide rail conveyor (1). A hot air outer drying box (3) is provided on the ring-shaped guide rail conveyor (1). Multiple sets of hot air nozzles are provided on the inner wall of the hot air outer drying box (3) to dry the exterior of the glass products with hot air. The main drying mechanism (2) includes a support base (20) fixedly connected to the slider. A connecting base (21) is fixedly connected to the support base (20). An electric telescopic rod (22) is fixedly connected to the connecting base (21). A three-axis bracket (23) is fixedly connected to the top of the electric telescopic rod (22). Three arms are fixedly connected to the three-axis bracket (23) at equal intervals along its radial direction. A soft high-temperature resistant rubber pad (24) is provided at the end of each arm. The three-axis bracket (23) is used to provide soft support for the inner top of the glass product. A bearing (25) is provided on the outer wall of the main body of the electric telescopic rod (22). The inner ring of the bearing (25) is fixedly connected to the main body of the electric telescopic rod (22), while the outer ring is fixedly connected to an annular linkage shell (26).

2. The continuous hot air drying equipment for glass products according to claim 1, characterized in that: The main drying mechanism (2) also includes a bevel gear ring (27) rotatably connected to the annular linkage housing (26). Three bevel gears (28) are rotatably connected to the inner wall of the annular linkage housing (26) radially at equal intervals. The bevel gears (28) mesh with the bevel gear ring (27). A passive gear ring (29) is fixedly connected to the bottom of the annular linkage housing (26). A drive motor (210) is provided on the connecting base (21). An active gear (211) is connected to the output end of the drive motor (210). The active gear (211) meshes with the passive gear ring (29). A drive bevel gear (212) is rotatably connected to the inner wall of the annular linkage housing (26). The drive bevel gear (212) meshes with the bevel gear ring (27). A servo motor (213) is fixedly connected to the outer wall of the annular linkage housing (26) at the position corresponding to the drive bevel gear (212).

3. The continuous hot air drying equipment for glass products according to claim 2, characterized in that: A gear box (214) is provided on the outer wall of the annular linkage shell (26) at the position corresponding to the bevel gear (28). A main gear (215) and a secondary gear (216) are rotatably connected inside the gear box (214). The main gear (215) and the secondary gear (216) mesh with each other, and the main gear (215) is connected to the bevel gear (28) for transmission.

4. The continuous hot air drying equipment for glass products according to claim 3, characterized in that: A guide housing (217) is fixedly connected to one side of the gear box (214). A lead screw (218) is rotatably connected inside the guide housing (217). The lead screw (218) is connected to the secondary gear (216) inside the gear box (214). A matching nut (219) is threaded onto the lead screw (218). A mating slider (220) is fixedly connected to one side of the nut (219). An opening is provided on one side of the guide housing (217), and the mating slider (220) is slidably connected inside the opening.

5. A continuous hot air drying equipment for glass products according to claim 4, characterized in that: The sliding block (220) has a circular limiting groove, and a first hot air pipe (221) is slidably connected in the limiting groove. A mounting base (222) is fixedly connected to one side of the sliding block (220), and a second hot air pipe (223) is fixedly connected to the mounting base (222). Both the first hot air pipe (221) and the second hot air pipe (223) are hollow inside, and multiple vertically arrayed air outlets are opened on opposite sides for spraying hot air onto the inner and outer walls of the glass product for drying.

6. The continuous hot air drying equipment for glass products according to claim 5, characterized in that: The top of the first hot air pipe (221) is also provided with a top spray nozzle for hot air drying inside the glass product. The first hot air pipe (221) has a toothed groove on the side away from the air outlet. A rack (224) is fixedly connected in the toothed groove. A drive gear (225) that matches the rack (224) is rotatably connected on the matching slider (220). A micro servo motor (226) for driving the drive gear (225) to rotate is also provided on the matching slider (220). The output end of the micro servo motor (226) is connected to the drive gear (225) for transmission.

7. A continuous hot air drying equipment for glass products according to claim 5, characterized in that: Several rotating frame plates (227) are fixedly connected to both sides of the second hot air pipe (223). A rotating roller (228) is rotatably connected between two adjacent rotating frame plates (227). The two rows of rotating rollers (228) are in contact with the outer wall of the glass product to be dried and rotate relative to each other, so that different positions can be dried.

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