Electric heating segmented temperature control channel and its application in the production of molded glass bottles

Abstract

The present application relates to the field of glass product production, and discloses an electrically heated segmented temperature-controlled channel and its application in the production of molded glass bottles, including a channel body and a cover body covering the channel body. The channel body is a segmented structure, including at least an inlet section, an intermediate section, and an outlet section. The interior of the cover body is divided into a plurality of heating zones, and each heating zone is isolated by a partition. The heating zones are respectively provided with independent heating devices and temperature control devices. The temperature control device includes a control algorithm module, which dynamically adjusts the power of the heating device by real-time detection of the temperature of the heating zone to keep the glass block within the set temperature range during the transmission of the channel body. The present invention can realize precise control of the temperature of the glass block through segmented temperature control design and dynamic adjustment algorithm, improve the molding quality of glass bottles, reduce energy consumption, adapt to diversified production needs, and has good industrial application value.

Description

Technical Field

[0001] The invention relates to the technical field of glass product production, in particular to an electrically heated segmented temperature-controlled material channel and its application in the production of molded glass bottles. Background Art

[0002] Glass bottles are widely used as packaging materials in the fields of food, beverages, and medicines. The temperature control of glass blocks during their production process has a decisive influence on product quality. In the production process of molded glass bottles, after the glass blocks are sheared, they need to be transported to the mold through the material channel for molding. Glass blocks have the characteristics of high fluidity at high temperatures, but during the transmission process, due to the influence of heat dissipation and ambient temperature, the temperature of the blocks will drop rapidly. If the temperature drops too much, the fluidity and plasticity of the blocks will decrease, resulting in the inability to fully fill the mold or defects on the surface of the glass bottle, such as bubbles, uneven thickness, or even fragile structure.

[0003] In traditional technology, the material channel usually adopts gas heating or single electric heating to compensate the temperature of the material block. However, these methods have significant shortcomings in practical applications. On the one hand, the traditional heating method is usually based on overall heating, which cannot be accurately adjusted according to the actual temperature requirements of different sections of the material channel. This design can easily lead to local overheating or insufficient local temperature of the material channel, which directly affects the uniformity of the temperature of the material block. On the other hand, due to the uneven heat distribution, the heating efficiency is low, and the energy waste problem is more serious. Especially in long-term high-intensity production, energy consumption has become an important factor restricting production efficiency. In addition, the combination of the material channel and the transmission system in the existing technology is usually relatively simple, mainly relying on the stability of mechanical transmission, but lacks a flexible transmission mode, and it is difficult to meet diverse production needs. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an electrically heated segmented temperature-controlled material channel and its application in the production of molded glass bottles, which solves the problems of reduced molding quality, excessive energy consumption and a single transmission method caused by uneven temperature or excessive heat dissipation during the transmission of glass blocks.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an electrically heated segmented temperature-controlled material channel, comprising a material channel body and a cover body, wherein the material channel body is a segmented structure, comprising at least an inlet section, a middle section and an outlet section;

[0006] The cover body covers the upper part of the material channel body, and the interior of the cover body is divided into a plurality of heating zones, and each heating zone is isolated by a partition;

[0007] The heating zones are respectively equipped with independent heating devices and temperature control devices;

[0008] The temperature control device includes a control algorithm module, which detects the temperature of the heating zone in real time and dynamically adjusts the power of the heating device to keep the glass block within a set temperature range during the transmission process of the channel body.

[0009] Preferably, the material channel body includes a mechanical conveying device and / or a gravity conveying device;

[0010] The mechanical conveying device controls the transmission speed of the glass blocks through a conveying chain driven by a variable frequency motor, and the gravity conveying device realizes the sliding transmission of the glass blocks through the inclination angle of the channel body.

[0011] Preferably, the inclination angle of the channel body is 15° to 25°, and the inclination angle is set in combination with the friction coefficient and weight of the glass block to achieve a stable sliding speed.

[0012] Preferably, the heating device is an infrared heater, which is installed on the top of the inner side of the cover body and is evenly arranged along the length direction of the channel body.

[0013] Preferably, the power of the infrared heater is set separately in each heating zone, wherein:

[0014] The power range of the inlet section is 0 to 1.5 kW;

[0015] The power range of the middle section is 1.5 to 3.0 kW;

[0016] The power range of the outlet section is 3.0 to 5.0 kilowatts.

[0017] Preferably, the temperature control device dynamically adjusts the temperature data through the control algorithm module, and the control algorithm includes a proportional integral differential control algorithm based on temperature error, and the algorithm adjusts the power of the heating device according to the difference between the current temperature of the glass block and the target temperature.

[0018] Preferably, the control algorithm further includes a dynamic optimization algorithm based on the glass block transmission time, and the algorithm adjusts the power distribution of each zone heating device in real time according to the mechanical conveying speed or the gravity conveying sliding time.

[0019] Preferably, the cover body is made of high-temperature resistant alloy steel, coated with a high-reflective coating on the inside, and wrapped with a heat-insulating material on the outside to reduce heat loss.

[0020] Preferably, adjustable ventilation holes are provided on the partitions of the cover body to optimize the heat flow distribution between the heating zones.

[0021] The present invention also provides an application of an electrically heated segmented temperature-controlled material channel in the production of molded glass bottles. The electrically heated segmented temperature-controlled material channel is used to transport glass blocks through a mechanical conveying device or a gravity conveying device, and the heating power is dynamically adjusted through the control algorithm module to maintain the glass blocks in an optimal temperature range before molding.

[0022] The present invention provides an electrically heated segmented temperature-controlled channel and its application in the production of molded glass bottles. It has the following beneficial effects:

[0023] 1. The present invention divides the material channel into multiple independent heating zones, combines the real-time monitoring of the temperature sensor and the dynamic adjustment algorithm, and can accurately control the temperature range of the glass block in each zone, avoid the situation where the temperature is too high or too low, ensure that the glass block is always in the optimal molding temperature range, and significantly improve the temperature control accuracy in the production process;

[0024] 2. Through segmented heating and dynamic power regulation, the present invention optimizes heat distribution and avoids heat waste in traditional overall heating methods. At the same time, the cover uses high-reflective coatings and heat-insulating materials to further reduce heat loss, significantly improve energy efficiency, and reduce production costs;

[0025] 3. The present invention provides two modes of mechanical conveying and gravity conveying, and supports the combined use of the two. In different production scenarios, the conveying mode can be flexibly switched according to needs. The mechanical conveying mode ensures the stability of transmission, while the gravity conveying mode simplifies the mechanical structure, reduces energy consumption, and enhances the applicability of the system;

[0026] 4. The mechanical conveying part realizes constant speed transmission through the frequency conversion driven chain system, while the gravity conveying part ensures the smooth and controllable sliding speed of the glass block by optimizing the inclination angle of the material channel and the surface coating design. This transmission stability avoids the temperature control deviation of the glass block caused by uneven transmission speed and improves the product yield;

[0027] 5. Through precise temperature control and stable transmission, the present invention effectively reduces the problems of bubbles, uneven thickness and surface defects in the glass block during the molding process, ensures the high-quality output of the molded glass bottles, and meets the quality consistency requirements of high-end glass bottle production;

[0028] 6. The segmented design and dynamic temperature control algorithm enable the present invention to adjust the heating zone length and heating power according to the size, weight and molding temperature requirements of different glass blocks, adapt to various glass bottle production scenarios, and provide support for the flexibility and scalability of the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the material channel structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0031] Figure 3 This is a schematic structural diagram of Embodiment 2 of the present invention;

[0032] Figure 4 This is a structural schematic diagram of Example 3 of the present invention.

[0033] Among them, 1. material channel body; 11. entrance section; 12. middle section; 13. exit section; 2. cover body; 21. heating partition; 22. partition; 3. heating device; 4. temperature control device; 5. control algorithm module; 6. mechanical conveying device; 7. gravity conveying device. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Please refer to the attached Figure 1 The present invention provides an electrically heated segmented temperature-controlled material channel. By designing a segmented material channel structure, a covering cover, and a partitioned independent temperature control system, the present invention realizes accurate temperature management of the glass block during the transmission process and ensures the molding temperature stability of the glass block. The technical features and implementation details of the present invention are described in detail below.

[0036] Generally, the temperature of the glass block is high after shearing during the production process, but the temperature will drop due to heat dissipation during the transmission to the mold, affecting the molding quality. In view of this problem, the present invention designs an electric heating channel with segmented temperature control function to achieve dynamic regulation of the transmission temperature of the glass block.

[0037] The electric heating segmented temperature control channel of the present invention mainly comprises a channel body 1 and a cover body 2. The channel body 1 is a segmented structure, comprising at least an inlet section 11, a middle section 12 and an outlet section 13; the cover body 2 covers the upper part of the channel body 1 and is divided into a plurality of independent heating zones 21 inside the cover body 2. Each heating zone 21 is isolated by a partition 22 to avoid mutual interference of heat.

[0038] Specifically, the channel body 1 is a metal structure made of high temperature resistant stainless steel, and the surface is coated with a high temperature resistant ceramic coating to reduce the heat exchange between the glass block and the channel body 1, while reducing the friction resistance. In some embodiments, the channel body 1 can be arranged horizontally or tilted according to the production requirements of the glass block. Among them, the tilted arrangement is mainly suitable for gravity conveying, and its tilt angle is generally between 15° and 25°, which can be adjusted according to the mass, viscosity and friction coefficient of the glass block.

[0039] The material channel body 1 is combined with the conveying part, and the whole adopts a modular design. The material channel body 1 is a segmented structure, which is divided into an entrance section 11, a middle section 12 and an exit section 13. The length and function of each section are designed according to the temperature requirements and transmission rhythm of the glass block. The conveying part includes a mechanical conveying system and a gravity conveying system according to different transmission methods. The two can be used independently or in combination to form a close match with the material channel body 1.

[0040] Specifically, a conveying track or chute is provided at the bottom of the material channel body 1 for installation of a mechanical chain and sliding support of glass blocks. In the mechanical conveying mode, the conveying chain is installed on the track at the bottom of the material channel and is parallel to the surface of the material channel; in the gravity conveying mode, the surface of the material channel is designed as an inclined chute, and friction optimization is combined to achieve smooth sliding of the material blocks.

[0041] Integration of mechanical conveying parts: In the mechanical conveying system, the material channel body 1 is combined with the conveying chain in the form of a bottom track. The conveying chain passes through the fixed guide rail at the bottom of the material channel and is arranged along the entire length of the material channel body 1. The chain is driven by a servo motor and the speed can be adjusted by the central control system. The bracket structure on the chain matches the bottom surface shape of the glass block to ensure that the block does not deviate or flip during the transmission process.

[0042] In some embodiments, in order to reduce the heat loss of the glass block during the transmission process, the bracket part of the conveyor chain is made of high temperature resistant material (such as ceramic matrix composite material), and a heat insulation coating is provided on the surface of the bracket to isolate the heat conduction effect. The joint between the mechanical conveyor chain and the material channel is designed as an adjustable structure to adapt to different material block sizes or material channel inclinations.

[0043] Combination of gravity conveying part: In the gravity conveying system, the bottom surface of the channel body 1 directly serves as a sliding track and contacts the glass block. The surface of the sliding track is coated with a wear-resistant ceramic coating to reduce the friction coefficient and reduce the temperature loss of the block during the sliding process.

[0044] In order to improve the smoothness and controllability of sliding, a deceleration device can be set at the bottom of the material channel, such as adding a friction adjustment strip or a buffer pad on the track. This design effectively avoids the loss of control caused by the material block due to excessive speed.

[0045] Combination of mechanical conveying and gravity conveying: In some possible implementations, the first two sections of the material channel body 1 are combined with mechanical conveying, and the outlet section 13 is combined with gravity conveying. This combination is suitable for production scenarios that require high temperature control accuracy. The mechanical conveying part ensures the constant speed transmission of the material block in the inlet section 11 and the middle section 12, while the gravity conveying part uses the inclined design of the material channel to realize the natural sliding of the material block to the mold.

[0046] To achieve seamless switching, the chain end of the mechanical conveyor is designed to be a detachable structure. When switching to gravity conveying, the chain will automatically stop in the middle of the material channel, and then the glass block will slide in the outlet section 13 to complete the transmission.

[0047] The combination of the material channel and the conveying part is not only closely matched in structure, but also achieves coordinated optimization in function through the central control system.

[0048] Matching of temperature control system and conveying speed: In mechanical conveying mode, the conveying speed It is directly related to the heating requirements of each section of the material channel. The central control system determines the target residence time of the glass block in each section of the material channel. Calculate the corresponding speed adjustment value , the relationship is:

[0049] .

[0050] By adjusting The system ensures that the glass blocks receive sufficient heating time in each zone while maintaining the consistency of the production line rhythm.

[0051] Dynamic balance between temperature and sliding speed: In gravity conveying, the inclination of the material channel Determines the sliding speed of the glass block The central control system calculates the sliding time by the following formula:

[0052] .

[0053] Combined with the data feedback from the temperature sensor, the system dynamically adjusts the power of each zone heater To match the sliding speed of the material block.

[0054] Synchronization of heat management and conveying rhythm: In order to avoid uneven heat distribution during the transmission process, the temperature control system allocates the power of each heating zone 21 according to the real-time temperature difference and the transmission rhythm. For example, when the transmission speed of the material block decreases in the outlet section 13, the temperature control system automatically increases the heater power of the outlet section 13 to compensate for the heat loss of the material block in this area.

[0055] In an example scenario, the inlet section 11 and the middle section 12 of the material channel are mechanically conveyed, and the outlet section 13 is gravity conveyed. When the glass block enters the inlet section, it is conveyed by a chain at a constant speed. The chain stops running after reaching the exit section, and the material block slides to the mold through the inclined material channel surface. During this process, the temperature control system calculates the power of the exit section heater based on the sliding time. , ensure that the temperature of the material block is stable before molding.

[0056] As an option, the cover body 2 is made of high-temperature resistant alloy steel, and the inner surface is covered with a high-reflective coating to improve the efficiency of heat energy utilization. The cover body 2 is wrapped with a heat-insulating material to reduce heat loss. In some possible implementations, the partition 22 of the cover body 2 is made of a high-temperature resistant ceramic plate, and an adjustable ventilation hole is provided on the partition 22 to optimize the heat flow distribution, thereby ensuring the temperature uniformity in the heating area.

[0057] The design of the heating partition 21 is one of the cores of the present invention. Each heating partition 21 is equipped with an independent heating device 3 and a temperature control device 4. In some specific embodiments, the heating device 3 is an infrared heater, which is installed on the top of the cover 2 and evenly distributed along the length of the material channel. The power of the infrared heater can be adjusted according to the partition requirements. The power range of the inlet section 11 is 0 to 1.5 kilowatts, the power range of the middle section 12 is 1.5 to 3.0 kilowatts, and the power range of the outlet section 13 is 3.0 to 5.0 kilowatts.

[0058] The temperature control device 4 dynamically adjusts the temperature of each zone through the control algorithm module 5. The temperature control device 4 includes multiple groups of temperature sensors installed at the top and middle of the heating zone 21 to monitor the temperature of the glass block in real time. After the temperature data is collected by the central control system, the power output of each zone heater is adjusted through the control algorithm calculation.

[0059] In one possible implementation, the control algorithm uses a proportional integral differential (PID) control algorithm. Specifically, the PID control algorithm dynamically adjusts the heating power by calculating the error between the current temperature of the glass block and the target temperature. The calculation formula of the PID control is:

[0060] ;

[0061] in, is the heating power, is the temperature error, , , are the proportional, integral and differential gain coefficients respectively.

[0062] In the specific implementation of the adapted mechanical conveying method, the glass blocks are transferred along the material channel by a conveyor chain. The conveyor chain is driven by a servo motor, and its speed can be dynamically adjusted according to the conveying requirements of the glass blocks. In this case, the conveying time of the glass blocks is It can be calculated by the following formula:

[0063] ;

[0064] in, is the length of the material channel partition, is the chain transmission speed.

[0065] In the specific implementation of the adaptive gravity conveying method, the glass block is transported by sliding depending on the inclination angle of the material channel. Calculated by the following formula:

[0066] ;

[0067] in, is the acceleration due to gravity, is the inclination angle of the feed channel, is the friction coefficient.

[0068] In a possible implementation, the present invention can combine mechanical conveying with gravity conveying. In the first two sections of the material channel, the glass blocks are transferred by mechanical conveying; when reaching the last section, the chain is stopped and the inclined design of the material channel is used to realize the gravity sliding transmission of the glass blocks. At this time, the temperature control system can adjust the sliding time by Calculate the heating power:

[0069] ;

[0070] in, is the mass of the glass block, is the specific heat capacity, For the temperature difference.

[0071] The present invention adopts the advantages of strong stability and controllable speed of mechanical conveying through the above design, and combines the simple and efficient characteristics of gravity conveying to meet diverse production needs. In addition, through segmented heating and dynamic temperature control, the temperature control accuracy of the glass block during transmission is significantly improved, providing a reliable guarantee for the high-quality molding of molded glass bottles.

[0072] In an extended embodiment, the present invention can also adjust the length and power range of each partition according to the different sizes and weights of the glass blocks. For example, the length of the inlet section 11 can be shortened to 0.5 meters to meet the needs of rapid cooling; the length of the outlet section 13 can be increased to 2 meters to extend the temperature stabilization time before molding, thereby further optimizing the flexibility of the production process.

[0073] In order to better understand the present invention, the present invention is described in detail below in conjunction with specific embodiments.

[0074] Example 1: Please refer to the attached Figure 2 This embodiment provides an electrically heated segmented temperature-controlled material channel based on a mechanical conveying method, which is used to achieve precise temperature control of glass blocks in the production of molded glass bottles. This embodiment dynamically adjusts the temperature of the glass blocks through a mechanical transmission system combined with a segmented heating device 3 and a temperature control system, so that the glass blocks maintain an optimal molding temperature during the transmission process.

[0075] Generally, the glass block is at a high temperature after shearing, but the temperature will drop due to environmental heat dissipation and contact with equipment during the process of being transported to the mold. To solve this problem, this embodiment adopts a mechanical transport method, uses a variable frequency driven chain device to achieve stable transmission of the block, and realizes dynamic temperature control through a segmented heating and temperature control system.

[0076] In this embodiment, the material channel body 1 is arranged horizontally, has a total length of 3 meters, and is divided into an inlet section 11, a middle section 12, and an outlet section 13. The inlet section 11 is 0.6 meters long, the middle section 12 is 0.9 meters long, and the outlet section 13 is 1.5 meters long. The material channel body 1 is made of high-temperature resistant stainless steel, and the surface is coated with a high-temperature resistant ceramic coating to reduce the heat exchange between the glass block and the material channel, while reducing the transmission resistance.

[0077] The cover 2 covers the top of the channel body 1, and the interior is divided into three heating zones 21. Each heating zone 21 is isolated by a high-temperature resistant ceramic partition 22. Ventilation holes are provided on the partition 22 to adjust the heat flow balance between the zones. The cover 2 is made of high-temperature resistant alloy steel, coated with a high-reflective coating on the inside, and wrapped with heat-insulating materials on the outside to reduce heat loss.

[0078] Each heating zone 21 is equipped with an independent infrared heater and a temperature control device 4. The infrared heater is installed on the top of the cover 2 and is evenly distributed along the length of the material channel. The heater power is set according to the temperature requirements of each zone. The power range of the inlet section 11 is 0 to 1.5 kilowatts, the power range of the middle section 12 is 1.5 to 3.0 kilowatts, and the power range of the outlet section 13 is 3.0 to 5.0 kilowatts. The temperature control device 4 includes a plurality of temperature sensors, which are arranged at the top and the middle of each heating zone 21, respectively, for real-time monitoring of the temperature of the glass block.

[0079] The mechanical conveying system transfers the glass blocks through a conveyor chain. The chain is made of high-strength, high-temperature-resistant metal and driven by a servo motor with an adjustable running speed ranging from 0.1 to 0.5 m / s. The central control system dynamically adjusts the chain transmission speed and heater power according to the temperature control algorithm to meet the transmission and heating requirements of the glass blocks.

[0080] The temperature control system uses a proportional integral differential (PID) control algorithm. Specifically, the PID control algorithm monitors the current temperature of the glass block in real time. With target temperature Error , dynamically adjust the power of each heater The control calculation formula thereof refers to the aforementioned implementation method.

[0081] In this embodiment, after the transfer time of the glass block is calculated, the control system calculates the heat demand of each heater section to optimize power distribution.

[0082] For example, if the target temperature of the glass block is 1100°C to 1150°C in the inlet section 11, 1050°C to 1100°C in the middle section 12, and 1000°C to 1050°C in the outlet section 13, the central control system collects data in real time through the temperature sensor and independently adjusts the heaters in each section. For example, if the current temperature of the inlet section 11 is lower than 1100°C, the system increases the power of the infrared heater according to the PID control calculation formula until the temperature reaches the target range.

[0083] In some implementations, the central control system can also dynamically adjust the chain speed according to production requirements. For example, when the glass block needs to be quickly transported, the chain speed can be set to 0.5 m / s, and the heater power can be adjusted to ensure the heating effect.

[0084] This embodiment achieves precise temperature control of the glass block during the transmission process, ensuring the optimal molding temperature of the glass block before entering the mold. In addition, the stability of the mechanical conveying method ensures the consistency of the residence time of each partition, thereby further improving the accuracy and efficiency of temperature control.

[0085] Example 2: Please refer to the attached Figure 3 This embodiment provides an electrically heated segmented temperature-controlled material channel based on gravity conveying, which is used to control the temperature of glass blocks during transportation. This embodiment achieves smooth sliding and precise heating of glass blocks by designing an inclined material channel structure, an optimized sliding track, and a dynamic temperature control system, thereby meeting the temperature control requirements of molded glass bottle production.

[0086] Generally, the temperature of the glass block is high after shearing during the production process, but during the sliding process before being transferred to the mold, the temperature may drop too much due to heat loss, affecting the molding quality. This embodiment ensures that the glass block can maintain the target temperature range while sliding by designing an inclined material channel and a segmented heating system.

[0087] The material channel body 1 is made of high temperature resistant stainless steel, and the surface is coated with a ceramic wear-resistant coating to reduce the sliding friction coefficient and reduce heat loss. Specifically, the inclination angle of the material channel is between 15° and 25°, which is selected according to the weight of the glass block and the surface friction coefficient. In some implementations, the inclination angle is 20°, which can achieve smooth sliding of the block and maintain an appropriate sliding speed.

[0088] In this embodiment, the material channel is 3 meters long and is divided into an inlet section 11, a middle section 12 and an outlet section 13. The inlet section 11 is 0.6 meters long, the middle section 12 is 0.9 meters long, and the outlet section 13 is 1.5 meters long. The interior of the material channel is divided into three heating zones 21, each zone is separated by a high temperature resistant ceramic partition 22, and ventilation holes are provided on the partition 22 to optimize heat distribution.

[0089] The cover 2 covers the top of the material channel body 1, is made of high-temperature resistant alloy steel, is coated with a high-reflective coating inside to improve the efficiency of thermal energy utilization, and is wrapped with thermal insulation materials outside to reduce heat loss. The heating device 3 uses an infrared heater, which is installed on the top of the cover 2 and evenly arranged along the length of the material channel. The power of the infrared heater is adjusted according to the needs of each partition, where the power of the inlet section 11 is 0 to 1.5 kilowatts, the power of the middle section 12 is 1.5 to 3.0 kilowatts, and the power of the outlet section 13 is 3.0 to 5.0 kilowatts.

[0090] The temperature control system monitors the temperature of the glass block in each partition in real time through multiple sets of temperature sensors. The temperature sensors are arranged at the top and middle of each partition to accurately collect temperature data. The central control system dynamically adjusts the power of the infrared heater in each partition according to the temperature control algorithm to ensure that the glass block is always within the set temperature range during the sliding process.

[0091] In the gravity conveying method of this embodiment, the sliding speed of the glass block is determined by the inclination angle of the material channel and the friction coefficient. The calculation formula refers to the above-mentioned specific implementation method.

[0092] For example, when the inclination angle of the material channel , friction coefficient , the length of the block in the middle section Slide time on This can be calculated as about 1.2 seconds. The control system uses this sliding time to adjust the power of the middle section heater , ensuring that the glass block reaches the target temperature within the partition.

[0093] The temperature control system uses a proportional-integral-differential control algorithm to adjust power. Refer to the description of the above specific implementation and Example 1.

[0094] In actual operation, the glass block slides into the material channel at an appropriate initial speed at the entrance section. At this time, the temperature sensor detects that the initial temperature of the block is high, so the heater power of the entrance section is Set to a lower value only to maintain the temperature. When reaching the middle section, due to the faster sliding speed and increased ambient heat dissipation, the temperature control system increases the power of the middle section heater through the PID control algorithm , ensuring that the temperature of the glass block remains in the target range (1050℃ to 1100℃). The exit section has a long sliding time, and the temperature sensor detects temperature changes in real time. The control system further increases the heater power of the exit section , make up for the heat loss and make the material block reach the optimal temperature required for molding (1000℃ to 1050℃) before reaching the mold.

[0095] The gravity conveying method of this embodiment can achieve smooth sliding and precise heating of glass blocks without relying on mechanical transmission. The gravity conveying structure is simple and has low energy consumption, which is particularly suitable for production environments that are sensitive to energy consumption. In addition, through the dynamic temperature control algorithm and the matching of the sliding time, the system ensures the synchronization of the heating process and the block transmission, significantly improving the temperature control efficiency and the quality of the finished product.

[0096] Example 3: Please refer to the attached Figure 4 This embodiment provides an electrically heated segmented temperature-controlled material channel that combines mechanical conveying and gravity conveying, which is used for efficient transmission and precise temperature control of glass blocks. This embodiment optimizes the temperature control effect of glass blocks during the transmission process by using the stability of mechanical conveying and the efficiency of gravity conveying through the coordinated design of mechanical conveying and gravity conveying, and meets the demand for precise temperature control in the production of molded glass bottles.

[0097] Generally, the temperature of the glass block is high after shearing, but before being transferred to the mold, its temperature may drop due to heat dissipation, affecting the molding quality. This embodiment optimizes the temperature control requirements of different sections during the production process by designing a combination mode of mechanical conveying and gravity conveying, thereby ensuring that the glass block maintains the optimal molding temperature before entering the mold.

[0098] The material channel body 1 is designed as a segmented structure with a total length of 3 meters, which is divided into an inlet section 11, a middle section 12 and an outlet section 13. Among them, the inlet section 11 and the middle section 12 adopt a mechanical conveying mode, and the outlet section 13 combines a gravity conveying mode to achieve efficient switching of the transmission mode. The length of the inlet section 11 is 0.6 meters, the length of the middle section 12 is 0.9 meters, and the length of the outlet section 13 is 1.5 meters.

[0099] The material channel body 1 is made of high temperature resistant stainless steel, and the surface is coated with a ceramic wear-resistant coating to reduce the friction coefficient and reduce heat loss. Specifically, a conveying chain is set at the bottom of the material channel entrance section 11 and the middle section 12. The chain is driven by a servo motor to achieve precise control of the transmission speed. The outlet section 13 is designed as an inclined slideway with an inclination angle of 20°, which can complete the sliding transmission through the gravity of the glass block.

[0100] The cover 2 covers the top of the channel body 1, and the interior is divided into three independent heating zones 21, and each zone is isolated by a high-temperature resistant ceramic partition 22. The partition 22 is provided with ventilation holes to optimize heat distribution. The cover 2 is made of high-temperature resistant alloy steel, with a high-reflective coating on the inside to improve the efficiency of heat energy utilization, and a heat-insulating material wrapped on the outside to reduce heat loss.

[0101] Each heating zone 21 is equipped with an independent infrared heater and temperature control device 4. The infrared heater is installed on the top of the cover 2 and is evenly arranged along the length of the material channel. The heater power is set according to the temperature control requirements of each zone. The power range of the inlet section 11 is 0 to 1.5 kilowatts, the power range of the middle section 12 is 1.5 to 3.0 kilowatts, and the power range of the outlet section 13 is 3.0 to 5.0 kilowatts.

[0102] The temperature control device 4 includes a plurality of temperature sensors for real-time monitoring of the temperature of the glass block in each partition. The temperature sensors are arranged at the top and middle of each partition, and their monitoring data are collected by the central control system. The central control system adjusts the power of the infrared heater in each partition through a dynamic temperature control algorithm to ensure the temperature stability of the glass block during the entire transmission process.

[0103] Transfer time of mechanical conveying section By conveyor chain speed The calculation formula is as described above. In this embodiment, the chain speed is set to 0.3 m / s, and the transmission time of the entrance section and the middle section is 2 seconds and 3 seconds respectively. The central control system dynamically adjusts the heater power according to these transmission times to meet the temperature control requirements of the glass block during each stay period.

[0104] In the exit section, the glass block is transported by sliding due to gravity, and its sliding speed is Determined by the inclination angle and the friction coefficient, the calculation formula refers to the above specific implementation method. In this embodiment, is the inclination angle of the feed channel, is the friction coefficient. When the sliding speed , sliding time .

[0105] The temperature control system uses the proportional integral differential (PID) control algorithm to adjust the heating power of the outlet section in real time. , ensuring that the temperature of the glass block is stable during the sliding process.

[0106] In specific operation, the glass block enters the inlet section 11 through the mechanical conveying system. The initial temperature is relatively high, and the temperature control system maintains the heater power of the inlet section 11 at a low level (0 to 1.0 kW) to reduce heat loss. In the middle section 12, the glass block dissipates heat quickly, and the temperature control system increases the heater power of the middle section 12 (1.5 to 2.5 kW) according to the data of the temperature sensor to ensure that the temperature remains in the target range (1050°C to 1100°C).

[0107] When the glass block reaches the exit section 13, the chain conveyor stops and the block slides along the inclined channel by gravity. At this time, the temperature control system dynamically adjusts the heater power (4.0 to 5.0 kW) of the exit section 13 in combination with the sliding time to compensate for the temperature drop caused by heat dissipation during the sliding process, and finally maintains the temperature of the glass block at 1000°C to 1050°C required for molding.

[0108] Through the above design, this embodiment combines the stability of mechanical conveying and the efficiency of gravity conveying, and can realize flexible switching of transmission modes in different sections, while ensuring precise temperature control through a dynamic temperature control algorithm. This embodiment is suitable for molded glass bottle production scenarios that have high requirements for temperature control and require flexible adjustment of production modes.

[0109] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electrically heated segmented temperature-controlled material channel, comprising a material channel body (1) and a cover body (2), characterized in that: The channel body (1) is a segmented structure, comprising at least an inlet section (11), a middle section (12) and an outlet section (13); The cover body (2) covers the upper part of the material channel body (1), and the interior of the cover body (2) is divided into a plurality of heating zones (21), and each heating zone is isolated by a partition (22); The heating zones (21) are respectively equipped with independent heating devices (3) and temperature control devices (4); The temperature control device (4) comprises a control algorithm module (5) which dynamically adjusts the power of the heating device (3) by real-time detection of the temperature of the heating zone, so as to keep the glass block within a set temperature range during the transmission process of the channel body (1); The material channel body (1) comprises a mechanical conveying device (6) and / or a gravity conveying device (7); The mechanical conveying device (6) controls the transmission speed of the glass block through a conveying chain driven by a variable frequency motor, and the gravity conveying device (7) realizes sliding transmission of the glass block through the inclination angle of the channel body (1); The heating device (3) is an infrared heater, which is installed on the top of the inner side of the cover body (2) and is evenly arranged along the length direction of the channel body (1); The power of the infrared heater is set in each heating zone, wherein: The power range of the inlet section (11) is 0 to 1.5 kilowatts; The power range of the middle section (12) is 1.5 to 3.0 kilowatts; The power range of the outlet section (13) is 3.0 to 5.0 kilowatts; The temperature control device (4) dynamically adjusts the temperature data through the control algorithm module (5), wherein the control algorithm includes a proportional integral differential control algorithm based on the temperature error, and the algorithm adjusts the power of the heating device (3) according to the difference between the current temperature of the glass block and the target temperature; The control algorithm further comprises a dynamic optimization algorithm based on the glass block transmission time, wherein the algorithm adjusts the power distribution of each zone heating device (3) in real time according to the mechanical conveying speed or the gravity conveying sliding time.

2. The electrically heated segmented temperature-controlled material channel according to claim 1, characterized in that: The inclination angle of the channel body (1) is 15° to 25°, and the inclination angle is set in combination with the friction coefficient and weight of the glass block to achieve a stable sliding speed.

3. The electrically heated segmented temperature-controlled material channel according to claim 1, characterized in that: The cover body (2) is made of high-temperature resistant alloy steel, is coated with a high-reflective coating on the inside, and is wrapped with a heat-insulating material on the outside to reduce heat loss.

4. The electrically heated segmented temperature-controlled material channel according to claim 1, characterized in that: The partition plate (22) of the cover body (2) is provided with ventilation holes for optimizing the heat flow distribution between the heating zones.

5. Application of an electrically heated segmented temperature-controlled channel in the production of molded glass bottles, characterized in that: The electrically heated segmented temperature-controlled material channel as claimed in any one of claims 1 to 4 is used to transport the glass block via a mechanical conveying device (6) or a gravity conveying device (7), and the heating power is dynamically adjusted via the control algorithm module (5) to maintain the glass block within an optimal temperature range before molding.

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