Glass ball cooling forming device

Abstract

The utility model relates to the technical field of glass ball processing, and provides a glass ball cooling forming device which comprises a spiral pipe, a feeding hopper used for bearing glass balls is arranged at the upper end of the spiral pipe, a material scattering disc is connected to the lower end of the spiral pipe, and a cooling air pipe used for cooling the glass balls is communicated with the middle of the spiral pipe. The cooling air pipe is tangent to the spiral pipe in the rolling direction of the glass balls, the movement path of the glass balls is prolonged through the spiral pipe, the occupied space of the cooling channel is reduced, the cooling time is prolonged, cooling airflow is introduced through the cooling air pipe in the tangential direction, the contact area and uniformity of the airflow and the glass balls are enhanced, and the glass balls are prevented from being stopped and adhered. And the cooling efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of glass ball processing technology, and more specifically, to a glass ball cooling and forming device. Background Technology

[0002] In the glass bead production process, the cooling and shaping stage has a crucial impact on the physical properties, transparency, and yield of the final product. In traditional production processes, molten glass flowing from the baffle plate of a glass furnace is cut into irregular glass segments by a cutter, which then fall onto the rotating rollers of a bead-forming machine to be shaped. In this process, the choice of cooling method directly determines the internal stress distribution, surface quality, and production efficiency of the glass beads. Current cooling methods mainly rely on natural cooling, which involves placing the fired glass beads in a natural environment and allowing them to cool naturally through air. While natural cooling avoids the problem of excessive internal stress caused by rapid cooling, its cooling rate is slow and requires long heat dissipation channels, resulting in large equipment footprints and low production efficiency, making it difficult to meet the demands of large-scale, high-efficiency production. Furthermore, uneven heating of the glass bead surface is common during natural cooling, and the non-repeatable nature of the cooling process increases the risk of defective products. Utility Model Content

[0003] The purpose of this invention is to provide a glass ball cooling and forming device that solves the problems of low efficiency and poor uniformity of traditional cooling methods in glass ball production.

[0004] This utility model is achieved through the following technical solution: a glass ball cooling and forming device, including a spiral tube, a feeding hopper for receiving glass balls at the upper end of the spiral tube, a material distribution plate connected to the lower end of the spiral tube, and a cooling air duct for cooling glass balls connected in the middle of the spiral tube, the cooling air duct being arranged tangentially to the spiral tube along the rolling direction of the glass balls.

[0005] Furthermore, the spiral tube has upward-facing heat dissipation grooves.

[0006] Furthermore, the heat dissipation slots are arranged in a continuous spiral along the spiral tube, or the heat dissipation slots are arranged in a spiral interval along the spiral tube.

[0007] Furthermore, multiple cooling ducts are installed in the same vertical direction as the spiral tube.

[0008] Furthermore, the bottom plate of the bulk material tray is provided with sieve holes for screening glass balls.

[0009] Furthermore, a buffer plate is installed on the bulk material tray near the outlet of the spiral tube.

[0010] Furthermore, the inner surface of the spiral tube is coated with a high-temperature resistant, non-stick coating.

[0011] Furthermore, nitrogen or argon gas is introduced into the spiral tube through the cooling duct.

[0012] This utility model has at least the following advantages and beneficial effects:

[0013] (1) The spiral tube extends the movement path of the glass ball, reduces the space occupied by the cooling channel, increases the cooling time, and the cooling airflow is introduced tangentially through the cooling air duct, which enhances the contact area and uniformity between the airflow and the glass ball, avoids the glass ball from stagnating and sticking, and improves the cooling efficiency.

[0014] (2) By setting multiple cooling air ducts in the same vertical direction of the spiral tube, staged gradient cooling is achieved, which avoids the glass ball from cracking or deforming due to excessive internal stress caused by excessive cooling speed. The multiple air ducts work together to enhance the uniformity of cooling. Attached Figure Description

[0015] Figure 1 A schematic diagram of a glass ball cooling and forming device provided by this utility model.

[0016] Figure 2 A top view of a glass ball cooling and forming device provided by this utility model.

[0017] Figure 3 A side view of a glass ball cooling and forming device provided by this utility model.

[0018] Figure 4 A cross-sectional view of the spiral tube in a glass ball cooling and forming device provided by this utility model.

[0019] Reference numerals: 1-glass ball, 2-spiral tube, 20-heat dissipation groove, 3-feed hopper, 4-distribution tray, 40-sieve hole, 41-buffer plate, 5-cooling air duct. Detailed Implementation

[0020] The specific implementation method is described below with reference to the accompanying drawings.

[0021] Example

[0022] like Figures 1 to 4As shown, this embodiment mainly discloses a glass ball cooling and forming device, including a spiral tube 2. The upper end of the spiral tube 2 is provided with a feed hopper 3 for receiving glass balls 1, and the lower end of the spiral tube 2 is connected to a material distribution plate 4. A cooling air duct 5 for cooling the glass balls 1 is connected to the middle of the spiral tube 2, and the cooling air duct 5 is arranged tangentially to the spiral tube 2 along the rolling direction of the glass balls 1. Specifically, the inner wall of the feed hopper 3 gradually narrows and smoothly connects to the upper inlet of the spiral tube 2. The spiral tube 2 is spiral-shaped from top to bottom. As the rolling channel for the glass balls 1, the spiral structure of the spiral tube 2 extends the movement path of the glass balls 1, reduces the space occupied by the cooling channel, and thus increases the cooling time. At the same time, the inner cross-section of the spiral tube 2 is circular, matching the size of the glass balls 1. Since the glass balls 1 are not yet fully solidified, by rolling down the inner wall of the spiral tube 2 from top to bottom, the glass balls 1 can be further kneaded into a spherical shape, improving the yield. The cooling duct 5 introduces airflow tangentially, forming a vortex effect, which enhances the contact area and uniformity between the airflow and the glass ball 1. This accelerates heat dissipation and avoids stress concentration caused by direct high-speed airflow impact. At the same time, the tangential airflow pushes the glass ball 1 to roll, reducing stagnation and adhesion.

[0023] Furthermore, in a specific implementation, the spiral tube 2 provided in this embodiment of the present invention has an upward-facing heat dissipation groove 20. It should be noted that, as... Figure 4 As shown, the opening of the heat dissipation groove 20 faces upward, which facilitates the natural upward expulsion of hot air and prevents heat from accumulating inside the spiral tube 2, further improving heat dissipation efficiency. The included angle of the opening of the heat dissipation groove 20 must not exceed 120° to prevent the glass ball 1 from accidentally sliding out of the spiral tube 2. The groove structure, while ensuring the strength of the spiral tube 2, increases the contact surface between the airflow and the glass ball 1, promoting heat dissipation.

[0024] Preferably, the heat dissipation grooves 20 are arranged in a continuous spiral along the spiral tube 2. The continuous spiral grooves can maximize the heat dissipation area and are suitable for rapid cooling of high-heat glass spheres 1. Alternatively, the heat dissipation grooves 20 are arranged in a spiral interval along the spiral tube 2. The interval spiral grooves balance the heat dissipation efficiency and the structural strength of the spiral tube 2, reduce processing costs, and avoid stress problems caused by excessive heat dissipation leading to a sudden drop in temperature. At the same time, the cooling rate can be adjusted by the length and gap of the heat dissipation grooves 20 from top to bottom of the spiral tube 2 to adapt to different process requirements.

[0025] Furthermore, in specific implementations, multiple cooling ducts 5 are provided in the same vertical direction as the spiral tube 2 in the above-mentioned embodiment of the present invention. This enables phased gradient cooling: the upper cooling duct 5 initially cools the high-temperature glass ball 1, while the lower duct gradually refines the cooling rate to avoid sudden temperature changes; the multiple ducts work together to enhance the uniformity of cooling.

[0026] Furthermore, in a specific implementation, the bottom plate of the aforementioned bulk material tray 4 provided in this embodiment of the invention is provided with sieve holes 40 for screening glass spheres 1. Specifically, the size of the sieve holes 40 is set according to the lower limit of the tolerance of the standard glass spheres 1 to separate defective products that are not large enough. The sieve holes 40 perform preliminary screening of the cooled glass spheres 1, separating glass spheres 1 that are smaller than the specified size and some incompletely formed defective products, thereby improving the consistency of the finished product. At the same time, the screening process can also remove debris, reducing subsequent manual cleaning.

[0027] Furthermore, in a specific implementation, a buffer plate 41 is provided on the material tray 4 near the outlet of the spiral tube 2 in the above-mentioned embodiment of the present invention. Specifically, the buffer plate 41 reduces the impact force of the falling glass ball 1 by means of its tilt angle and elastic material (such as ceramic or high-temperature resistant rubber), preventing surface scratches or internal micro-cracks caused by collision, and is especially suitable for high-hardness glass materials. In addition, the sieve holes 40 can be concentrated near the buffer plate 41 to reduce the processing difficulty of the material tray 4.

[0028] Furthermore, in specific implementations, the inner surface of the spiral tube 2 provided in this embodiment of the present invention is coated with a high-temperature resistant anti-stick coating. Specifically, the high-temperature resistant anti-stick coating can be made of high-temperature resistant, low-surface-energy materials such as polytetrafluoroethylene, silicon carbide, or boron nitride, to reduce the adhesion of molten glass.

[0029] Furthermore, in specific implementations, nitrogen or argon gas is introduced into the spiral tube 2 through the cooling duct 5 provided in this embodiment of the present invention. Using inert gas cooling avoids oxidation of the glass surface at high temperatures, maintains optical transparency, prevents surface roughness caused by high-temperature oxidation, and prevents micropores or cracks from forming in the glass ball 1 due to rapid cooling. Simultaneously, the inert environment can suppress the risk of debris combustion, improving safety.

Claims

1. A glass sphere cooling and forming apparatus characterized by, The device comprises a spiral pipe (2), the upper end of which is provided with a feeding hopper (3) for receiving glass balls (1), the lower end of which is connected with a scattering disc (4), and the middle part of which is communicated with a cooling air pipe (5) for cooling the glass balls (1), the cooling air pipe (5) being tangentially arranged along the spiral pipe (2) in the direction of rolling of the glass balls (1).

2. A glass sphere cooling and forming apparatus as defined in claim 1, wherein, The spiral pipe (2) is provided with heat dissipation grooves (20) with openings facing upwards.

3. A glass sphere cooling and forming apparatus as defined in claim 2, wherein, The heat dissipation grooves (20) are arranged in a continuous spiral along the spiral pipe (2), or the heat dissipation grooves (20) are arranged in a spiral interval along the spiral pipe (2).

4. A glass sphere cooling and forming apparatus as defined in claim 1, wherein, The cooling air pipe (5) is provided with a plurality of pipes in the same vertical direction of the spiral pipe (2).

5. A glass sphere cooling and forming apparatus as defined in claim 1, wherein, The bottom plate of the scattering disc (4) is provided with sieve holes (40) for screening the glass balls (1).

6. A glass sphere cooling and forming apparatus as defined in claim 1, wherein, The scattering disc (4) is provided with a buffer plate (41) near the outlet of the spiral pipe (2).

7. A glass sphere cooling and forming apparatus as defined in claim 1, wherein, The inner surface of the spiral pipe (2) is coated with a high-temperature-resistant anti-sticking coating.

8. A glass sphere cooling and forming apparatus as defined in claim 1, wherein, The cooling air pipe (5) introduces nitrogen or argon into the spiral pipe (2).

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