Electronic component chip electrode printing and drying device
By adopting tunnel furnace and hot air recovery technology in the chip drying equipment of electronic components, the problems of uneven temperature and high energy consumption are solved, and uniform drying of chip electrodes and energy efficiency improvement are achieved.
Patent Information
- Application Number
- CN202422561301.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-10-23
AI Technical Summary
In existing electronic component chip drying equipment, the temperature in the furnace is uneven and the energy consumption is high, resulting in inconsistent drying of chip electrodes, and poor sealing effect of exhaust ducts affects the drying environment.
A drying device including a tunnel furnace and a conveying mechanism is designed, using an upper and lower insulation layer, and the front hot air heating recovery mechanism and the rear hot air heating recovery mechanism are used to realize the recycling of hot air and ensure the middle of the furnace. Uniform heating and temperature uniformity in the high temperature zone.
It improves the consistency of chip electrodes after drying, reduces energy consumption, and reduces exhaust gas emissions through hot air recovery, improving the temperature control accuracy and product quality of the drying process.
Smart Images
Figure CN222179010U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electronic component drying equipment, in particular to an electronic component chip electrode printing and drying device. Background Art
[0002] Electrode paste is printed on both sides of the electronic component chip, and the electrode paste is dried to make it dry, so that the chip printed with electrode paste will not stick to the electrode printing carrier after turning over. Usually, when printing the electrode of the electronic component chip, it is printed on one side of the electronic component chip first, and then the electrode paste on this side is dried in a drying furnace, and then the other side of the electronic component chip is turned over and printed, and then it is dried in a drying furnace again, and finally the electronic component chip is transferred to the reduction carrier.
[0003] At present, the furnace of the drying furnace is provided with an upper heating element and a lower heating element, and the conveying mechanism crosses between the upper heating element and the lower heating element. When working, the upper heating element and the lower heating element generate heat, and release hot air to circulate in the entire furnace, so that there is a temperature range inside the furnace, the middle of the furnace is a high temperature zone, and the front and rear of the furnace are low temperature zones. However, the upper and lower heating elements are prone to uneven heating, and the energy consumption is very large, so that the temperature of the upper position of the conveying mechanism in the high temperature zone is as high as 20°C higher than the temperature of the lower position, resulting in temperature deviation between the upper and lower positions of the conveying mechanism, affecting the consistency of the chip electrodes of electronic components; and the sealing effect of the exhaust duct is poor, which affects the furnace environment of the tunnel drying furnace. Utility Model Content
[0004] The problem to be solved by the utility model is to provide an electronic component chip electrode printing and drying device, which can improve the consistency of the electronic component chip electrodes after drying and reduce energy consumption.
[0005] In order to solve the above technical problems, the technical solutions adopted by the utility model are as follows:
[0006] An electronic component chip electrode printing and drying device comprises a tunnel furnace and a conveying mechanism, wherein an entrance is arranged at the front end of the tunnel furnace and an exit is arranged at the rear end, and the conveying mechanism enters the tunnel furnace from the entrance and passes through the tunnel furnace from the exit; the device is characterized in that it also comprises an upper heat insulation layer, a lower heat insulation layer, a front hot air heating and recovery mechanism and a rear hot air heating and recovery mechanism, wherein the upper heat insulation layer is laid on the top of the tunnel furnace and is above the conveying mechanism, and the lower heat insulation layer is laid on the bottom of the tunnel furnace and is below the conveying mechanism; the front hot air heating and recovery mechanism The recovery mechanism is arranged in the front half of the tunnel furnace, the front hot air heating recovery mechanism has a front air outlet and a front exhaust port, the front air outlet is arranged in the middle of the tunnel furnace and is between the upper insulation layer and the lower insulation layer, and the front exhaust port is arranged at the entrance of the front end of the tunnel furnace; the rear hot air heating recovery mechanism is arranged in the rear half of the tunnel furnace, the rear hot air heating recovery mechanism has a rear air outlet and a rear exhaust port, the rear air outlet is arranged in the middle of the tunnel furnace and is between the upper insulation layer and the lower insulation layer, and the rear exhaust port is arranged at the outlet of the rear end of the tunnel furnace.
[0007] The definition of the front and back mentioned above is: along the conveying direction of the above-mentioned conveying mechanism, the one that arrives first is the front and the one that arrives slowly is the back.
[0008] During operation, the front hot air heating and recovery mechanism and the rear hot air heating and recovery mechanism are started, so that the front air outlet of the front hot air heating and recovery mechanism and the rear air outlet of the rear hot air heating and recovery mechanism respectively blow hot air to the middle of the tunnel furnace, so that the heat is evenly distributed in the middle of the tunnel furnace, and under the heat preservation effect of the upper insulation layer and the lower insulation layer, the high temperature zone in the middle of the tunnel furnace is heated evenly, and the hot air can wrap the electronic component chips in the carrier on the conveying mechanism, so that the temperature atmosphere of the electronic component chips is consistent, the heat is evenly heated, and the pressure ratio of the upper layer and the lower layer of the dried product is consistent, thereby improving the consistency of the electrodes of the electronic component chips after drying. During the drying process of each electronic component chip, the hot air at the front entrance of the tunnel furnace is drawn back into the front hot air heating and recovery mechanism through the front exhaust port for heating, and then the hot air that reaches the set temperature requirement is input into the middle of the tunnel furnace through the front outlet, so that the hot air at the entrance is recycled and utilized to reduce energy consumption; the hot air at the rear exit of the tunnel furnace is drawn back into the rear hot air heating and recovery mechanism through the rear exhaust port for heating, and then the hot air that reaches the set temperature requirement is input into the middle of the tunnel furnace through the rear outlet, so that the hot air at the exit is recycled and utilized to reduce energy consumption.
[0009] The above-mentioned conveying mechanism can use a plurality of conveying rollers arranged in sequence, which belongs to the prior art and will not be described in detail here.
[0010] In the preferred embodiment, the materials of the upper insulation layer and the lower insulation layer are insulation wool, glass fiber, rock wool or foam plastic. The above insulation wool has an extremely low thermal conductivity, which can effectively prevent heat from being conducted outward, reduce the heat loss inside the tunnel furnace, help maintain the temperature stability inside the tunnel furnace, and ensure the temperature consistency during the drying process. Usually, suitable materials can be selected for the upper insulation layer and the lower insulation layer according to factors such as usage requirements and market prices.
[0011] In the preferred embodiment, the front hot air heating and recovery mechanism includes a front hot air blower, a front air outlet duct and a front exhaust duct. The front hot air blower is arranged in the front half of the tunnel furnace. One end of the front air outlet duct is connected to the air outlet of the front hot air blower, and the other end of the front air outlet duct constitutes the front air outlet; one end of the front exhaust duct is connected to the air inlet of the front hot air blower, and the other end of the front exhaust duct constitutes the front exhaust duct. The hot air at the entrance of the tunnel furnace is drawn back to the front hot air blower through the front exhaust duct for heating treatment, and then sent back to the interior of the tunnel furnace, so as to realize the effective recycling of thermal energy, greatly reduce energy consumption and unnecessary heat loss, and also reduce the amount of exhaust gas discharged to the outside, which is beneficial to environmental protection. Since the front hot air blower can continuously maintain the air in the furnace within the set temperature range, it can more accurately control the temperature conditions during the drying process to ensure stable product quality.
[0012] In the preferred embodiment, the rear hot air heating and recovery mechanism includes a rear hot air blower, a rear air outlet duct and a rear exhaust duct. The rear hot air blower is arranged in the rear half of the tunnel furnace. One end of the rear air outlet duct is connected to the air outlet of the rear hot air blower, and the other end of the rear air outlet duct constitutes the rear air outlet; one end of the rear exhaust duct is connected to the air inlet of the rear hot air blower, and the other end of the rear exhaust duct constitutes the rear exhaust duct. The hot air at the outlet of the tunnel furnace is drawn back into the rear hot air blower through the rear exhaust duct for heating treatment, and then sent back to the interior of the tunnel furnace, so as to realize the effective recycling of thermal energy, greatly reduce energy consumption and unnecessary heat loss, and also reduce the amount of exhaust gas discharged to the outside, which is beneficial to environmental protection. Since the rear hot air blower can continuously maintain the air in the furnace within the set temperature range, it can more accurately control the temperature conditions during the drying process to ensure stable product quality.
[0013] Compared with the prior art, the utility model has the following advantages:
[0014] The utility model adopts a hot air internal circulation mode to heat the tunnel furnace, which can keep the high temperature zone in the middle of the tunnel furnace heating evenly, so that the temperature atmosphere of the electronic component chips remains consistent and the heating is even. The pressure ratio of the upper layer and the lower layer of the dried product is consistent, thereby improving the consistency of the electrodes of the electronic component chips after drying, and recovering and reheating the hot air at the entrance and exit with lower temperature, which can reduce energy consumption and reduce exhaust gas emissions. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;
[0016] Figure 2 yes Figure 1 Right view of;
[0017] Figure 3 yes Figure 1 Top view of the . DETAILED DESCRIPTION
[0018] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0019] like Figure 1-3 As shown, the electronic component chip electrode printing and drying device in this embodiment includes a tunnel furnace 1, a conveying mechanism 2, an upper insulation layer 3, a lower insulation layer 4, a front hot air heating and recovery mechanism 5 and a rear hot air heating and recovery mechanism 6. The front end of the tunnel furnace 1 is provided with an entrance 11, and the rear end is provided with an exit 12. The conveying mechanism 2 enters the tunnel furnace 1 from the entrance 11 and passes through the tunnel furnace 1 from the exit 12; the upper insulation layer 3 is laid on the top of the tunnel furnace 1 and is above the conveying mechanism 2, and the lower insulation layer 4 is laid on the bottom of the tunnel furnace 1 and is below the conveying mechanism 2; the front hot air heating and recovery mechanism 5 is provided It is arranged in the front half of the tunnel furnace 1, and the front hot air heating and recovery mechanism 5 has a front air outlet 51 and a front air exhaust port 52. The front air outlet 51 is arranged in the middle of the tunnel furnace 1 and is between the upper insulation layer 3 and the lower insulation layer 4, and the front air exhaust port 52 is arranged at the entrance 11 at the front end of the tunnel furnace 1; the rear hot air heating and recovery mechanism 6 is arranged in the rear half of the tunnel furnace 1, and the rear hot air heating and recovery mechanism 6 has a rear air outlet 61 and a rear air exhaust port 62. The rear air outlet 61 is arranged in the middle of the tunnel furnace 1 and is between the upper insulation layer 3 and the lower insulation layer 4, and the rear air exhaust port 62 is arranged at the outlet 12 at the rear end of the tunnel furnace 1.
[0020] The definition of the front and back mentioned above is: along the conveying direction of the above-mentioned conveying mechanism 2, the one that arrives first is the front, and the one that arrives slowly is the back.
[0021] During operation, the front hot air heating and recovery mechanism 5 and the rear hot air heating and recovery mechanism 6 are started, so that the front air outlet 51 of the front hot air heating and recovery mechanism 5 and the rear air outlet 61 of the rear hot air heating and recovery mechanism 6 blow hot air to the middle of the tunnel furnace 1 respectively, so that the heat is evenly distributed in the middle of the tunnel furnace 1, and under the heat preservation effect of the upper insulation layer 3 and the lower insulation layer 4, the high temperature zone in the middle of the tunnel furnace 1 is heated evenly, and the hot air can wrap the electronic component chips in the carrier on the conveying mechanism 2, so that the temperature atmosphere of the electronic component chips is consistent, the heat is evenly heated, and the pressure ratio of the upper layer and the lower layer of the dried product is consistent, thereby improving the consistency of the electrodes of the electronic component chips after drying. During the drying process of each electronic component chip, the hot air at the front entrance 11 of the tunnel furnace 1 is drawn back into the front hot air heating and recovery mechanism 5 through the front exhaust port 52 for heating, and then the hot air reaching the set temperature requirement is input into the middle of the tunnel furnace 1 through the front outlet 51, and the hot air at the entrance 11 is recovered and utilized to reduce energy consumption; the hot air at the rear end outlet 12 of the tunnel furnace 1 is drawn back into the rear hot air heating and recovery mechanism 6 through the rear exhaust port 62 for heating, and then the hot air reaching the set temperature requirement is input into the middle of the tunnel furnace 1 through the rear outlet 61, and the hot air at the outlet 12 is recovered and utilized to reduce energy consumption.
[0022] The above-mentioned conveying mechanism 2 can use a plurality of conveying rollers arranged in sequence, which belongs to the prior art and will not be described in detail here.
[0023] The upper insulation layer 3 and the lower insulation layer 4 are both made of insulation cotton. The insulation cotton has an extremely low thermal conductivity, which can effectively prevent heat from being conducted outward, reduce the heat loss inside the tunnel furnace 1, help maintain the temperature stability inside the tunnel furnace 1, and ensure the temperature consistency during the drying process.
[0024] The front hot air heating recovery mechanism 5 includes a front hot air blower 53, a front air outlet duct 54 and a front exhaust duct 55. The front hot air blower 53 is arranged in the front half of the tunnel furnace 1. One end of the front air outlet duct 54 is connected to the air outlet of the front hot air blower 53, and the other end of the front air outlet duct 54 constitutes the front air outlet 51; one end of the front exhaust duct 55 is connected to the air inlet of the front hot air blower 53, and the other end of the front exhaust duct 55 constitutes the front exhaust duct 52. The hot air at the entrance 11 of the tunnel furnace 1 is drawn back to the front hot air blower 53 through the front exhaust duct 55 for heating treatment, and then sent back to the interior of the tunnel furnace 1, so as to realize the effective recycling of heat energy, greatly reduce energy consumption and unnecessary heat loss, and also reduce the amount of exhaust gas discharged to the outside, which is beneficial to environmental protection. Since the front hot air blower 53 can continuously maintain the air in the furnace within the set temperature range, the temperature conditions in the drying process can be more accurately controlled to ensure stable product quality.
[0025] The rear hot air heating recovery mechanism 6 includes a rear hot air blower 63, a rear air outlet duct 64 and a rear exhaust duct 65. The rear hot air blower 63 is arranged in the rear half of the tunnel furnace 1. One end of the rear air outlet duct 64 is connected to the air outlet of the rear hot air blower 63, and the other end of the rear air outlet duct 64 constitutes the rear air outlet 61; one end of the rear exhaust duct 65 is connected to the air inlet of the rear hot air blower 63, and the other end of the rear exhaust duct 65 constitutes the rear exhaust duct 62. The hot air at the outlet 12 of the tunnel furnace 1 is drawn back to the rear hot air blower 63 through the rear exhaust duct 65 for heating treatment, and then sent back to the interior of the tunnel furnace 1, so as to realize the effective recycling of heat energy, greatly reduce energy consumption and unnecessary heat loss, and also reduce the amount of exhaust gas discharged to the outside, which is beneficial to environmental protection. Since the rear hot air blower 63 can continuously maintain the air in the furnace within the set temperature range, the temperature conditions in the drying process can be more accurately controlled to ensure stable product quality.
[0026] In addition, it should be noted that the names of the various parts of the specific embodiments described in this specification may be different, and any equivalent or simple changes made based on the structure, features and principles described in the utility model patent concept are included in the protection scope of the utility model patent. The technical personnel of the technical field to which the utility model belongs can make various modifications or supplements to the specific embodiments described or replace them in a similar manner, as long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, they should all fall within the protection scope of the utility model.
Claims
1. An electronic component chip electrode printing and drying device, comprising a tunnel furnace and a conveying mechanism, wherein the front end of the tunnel furnace is provided with an entrance, the rear end is provided with an exit, the conveying mechanism enters the tunnel furnace from the entrance and passes through the tunnel furnace from the exit; characterized in that: It also includes an upper insulation layer, a lower insulation layer, a front hot air heating and recovery mechanism and a rear hot air heating and recovery mechanism. The upper insulation layer is laid on the top of the tunnel furnace and is above the conveying mechanism, and the lower insulation layer is laid on the bottom of the tunnel furnace and is below the conveying mechanism; the front hot air heating and recovery mechanism is arranged in the front half of the tunnel furnace, and the front hot air heating and recovery mechanism has a front air outlet and a front air exhaust port. The front air outlet is arranged in the middle of the tunnel furnace and is between the upper insulation layer and the lower insulation layer, and the front air exhaust port is arranged at the entrance of the front end of the tunnel furnace; the rear hot air heating and recovery mechanism is arranged in the rear half of the tunnel furnace, and the rear hot air heating and recovery mechanism has a rear air outlet and a rear air exhaust port. The rear air outlet is arranged in the middle of the tunnel furnace and is between the upper insulation layer and the lower insulation layer, and the rear air exhaust port is arranged at the outlet of the rear end of the tunnel furnace.
2. The electronic component chip electrode printing and drying device according to claim 1, characterized in that: The upper insulation layer and the lower insulation layer are made of insulation wool, glass fiber, rock wool or foam plastic.
3. The electronic component chip electrode printing and drying device according to claim 1, characterized in that: The front hot air heating and recovery mechanism includes a front hot air blower, a front air outlet duct and a front exhaust duct. The front hot air blower is arranged in the front half of the tunnel furnace. One end of the front air outlet duct is connected to the air outlet of the front hot air blower, and the other end of the front air outlet duct constitutes the front air outlet; one end of the front exhaust duct is connected to the air inlet of the front hot air blower, and the other end of the front exhaust duct constitutes the front exhaust outlet.
4. The electronic component chip electrode printing and drying device according to claim 1, characterized in that: The rear hot air heating and recovery mechanism includes a rear hot air fan, a rear air outlet duct and a rear exhaust duct. The rear hot air fan is arranged in the rear half of the tunnel type furnace. One end of the rear air outlet duct is connected to the air outlet of the rear hot air fan, and the other end of the rear air outlet duct constitutes the rear air outlet; one end of the rear exhaust duct is connected to the air inlet of the rear hot air fan, and the other end of the rear exhaust duct constitutes the rear exhaust outlet.